small milling machine
SMALL MILLING MACHINE MODEL：SU1 INSTRUCTION MANUAL
Please read through all the contents and warnings in this safety specification carefully before using the machine.
SU1
SIEG
1
Important Safety Specification
To operators:
1．
To avoid electrical shock and harm, basic safety protection shall be enhanced when using electric tools, machines and equipments;
2．
Keep the environment around the machine clean and tidy, since a disorderly environment will bring danger;
3．
Do not install the machine in places vulnerable to rain or moisture. No flammable liquid (e.g. petroleum) is allowed near the machine;
4．
Children shall stay away from workplace;
5．
All the equipments of the machine shall be equipped with safety grounding devices to protect personal safety;
6．
Operators shall keep a clear head, do not operate when tired;
7．
Drinking and narcotics may affect one’s judgment, so no operators with these conditions are allowed to operate;
8．
Do not wear loose clothes, neckties or precious jewels to avoid dangers of being caught by the moving parts.
9．
Operators shall wear hard hats to cover long hair.
10． Operators shall wear protective goggles in case that iron filings fly into the eyes. 11． During the work, operators shall remain in a correct posture and keep their balance.
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Contents i.
Main technical parameters
……. 4
Technical parameters Loading list
ii.
iii.
Appearance and main component diagram of SU1 milling bed
……. 6
Machine installation
……. 7
Basic positioning Cautions before operation
iv.
Driving system
……. 8
v.
Operation and maintenance
……. 9
Electrical operation Mechanical operation
Appendixes vi.
Troubleshooting
…….12
vii.
Circuit diagram
…….13
viii.
Exploded drawing of parts
…….15
Part detail list
…….16
ix.
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Brief description SU1 Series milling bed is a small desktop lifting one, which can be switched to vertical or horizontal bed by changing the position of the power head. The vertical bed can do oblique milling by rotating the power head on the vertical plane. The two modes share one power head. The spindle drive of SU1 Series milling bed adopts infinite variable speeds. Comparing with the traditional gear drive and pulley drive, the synchronous pulley drive has a novel structure, low noise, stable drive and easy operation. The parts it can process have a broad range of application. It has comprehensive functions of vertical milling, horizontal milling, drilling, and boring. It is an ideal machine of family modeling, metal-processing learning and processing and repair.
(Ⅰ) Main technical parameters 1. Maximum drilling capacity 16 mm 2. Face milling capacity 16 mm 3. Surface milling capacity 30 mm 4. Maximum blade-shaped cutter diameter 63 mm 5. Maximum distance from the spindle face to the worktable of vertical milling bed 165 mm 6. Maximum distance from the spindle face to the worktable of horizontal milling bed 130 mm 7. Rotating angle of the spindle carrier of vertical milling bed ±45 degrees 8. Taper hole of spindle MT3 or R8 9. Spindle rotation speed (infinitely variable speed) 0-2500 r/ min ±10% 10. Size of the worktable 460×120 mm 11. Size of T-slot 12 mm 12. Lateral moving distance of the worktable 120 mm 13. Vertical moving distance of the worktable 300 mm 14. Z-directed moving distance of the worktable 105 mm 15. Motor power 500 w 16. Net weight / Gross weight: 95/115 kg
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Packing List
No.
Name
Specifications
Quantity
1
Milling bed
SU1
1 set
2
Operation specifications
3
Drill chuck and keys
4
Taper-shank arbor
1 book B16
1~13mm
X20206
1 unit 1 piece
5
Oil can
6
Inner hexagon spanner
S: 3, 4, 5, 6
1 in each size
7
Double-ended spanner
5.5×7, 10×12
1 in each size
8
Double-ended spanner
14×17, 21×24
1 in each size
9
Hook spanner
22~26
1 piece
10
T-nut
X22001
2
11
Gear shift lever
X1025200
1
SU1
1 piece
SIEG
5
(Ⅱ) Appearance and main component diagram of SU1 milling bed
14
4
13
7 7
6 12
8 2
9
10 5
11
4 3 1
No.
Quantity
1
1
2
No.
Quantity
Base
8
1
Spindle box of vertical milling bed
1
Upright post
9
2
Locating locking block
3
1
Lift
10
1
Mounting holes of horizontal milling bed
4
1
Vertical worktable
11
1
Spindle of horizontal milling bed
5
1
Horizontal worktable
12
1
Junction block of horizontal milling bed
6
1
Ram
13
1
Locking lever
7
1
Components of milling head
14
1
Locking mechanism of spindle box
SU1
Name
SIEG
Name
6
(Ⅲ) Machine installation
Basic positioning The whole machine and worktable shall be fixed with four hexagon bolts. Continuous working period and machine accuracy must be taken into consideration. It shall be installed in the proper position to make it available to use. The selection of installation positioning: 1) Rigid worktable shall be padded on a flat adjuster block. 2) In order to avoid the effect of high temperature on the machine, do not install the machine in sunny places. 3) The machine shall be installed away from dusty and wet places to avoid corrosion and rust. Important positioning methods 1） Drill four positioning holes on the mounting surface of the worktable. (Notes: in terms of the installing position, hand wheels of the Yaxis shall be considered for easy rotation and operation.) 2） Adjust the machine to a horizontal position. Use four M10 bolts to fix the worktable and the machine. Before operation When installation is finished, operators shall understand and grasp the basic structure, functions and controlling operations of the machine. Check whether the power source, voltage and the power supply are correct and regular. 1. During installation, all the clamping devices shall be fixed. 2. Check whether the power source and voltage are correct. 3. Before using the machine, fill mechanical lubricating oil to the sliding surface of the machine. 4. Check the chucks, clamping key and fixed pin on the spindle to make them under no load. 5. Check whether the driving parts are regular, whether each operating handles are in right positions, whether the tool clips (drills, milling
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cutters, etc.) are reliable and whether the processing parts are fixed tightly. Open the spindle box to lock the handle. 6. The spindle circles clockwise to start the machine. 7. When the machine is operating, its electrical devices shall conform to the working condition and have safety grounding devices. 8. During the operation, notice and control the machine. If any irregular sign, it shall be stopped and repaired immediately.
(Ⅳ) Driving System The driving system of the milling bed mainly consists of a synchronous pulley, a spindle bearing, a spindle and a motor, a motor synchronous pulley and a synchronous belt. The direct current motor starts power to work through synchronous pulley of motor, synchronous pulley of spindle and the spindle. The rotation speed is within the specified range of 0-2500 r/min by direct current through the infinite variable speed knob, which allows it to change its speed conveniently.
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(Ⅴ)Operation and maintenance Electrical operation B
C
A F G
D E
H
A Power switch B Speed showing plate C Overload indicator D Power indicator E Potentiometer knob F Speed showing socket G Fuse holder H Power cable
Move the speed-adjusting potentiometer E (equipped with a switch) anti-clockwise to “0”, and plug H into the plug base to connect to the power. At this time, the power green light D is luminous. (Note: if the yellow light C is luminous when the power is on, it indicates that the knob of potentiometer E is not pointed to 0. Each time the machine restarts, the knob E shall be pointed to 0.)
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The circuit board of the machine has a function of overloaded protection. Once the drilling and milling amount is oversized, the machine will stop automatically, and the yellow light C is luminous; when it restarts, the knob E shall be pointed to 0. Mechanical operation 1. The machine shall stop when installing cutters and parts. 2. Clean the inner hole of the spindle (Morse No. 3) and cone of the cutter. Push the cutter into the inner hole of the spindle and put the bar to tighten the cutter. 3. Put the part to be processed on the worktable, press it and move it horizontally and vertically to the needed position. 4. Loosen the locking handle of the lift and lift the worktable by swaying the handle. 5. Start the machine and select the rotation speed to do drilling and milling. 6. When milling the part, the spindle box and spindle shall be locked. And vertical, horizontal and lift gag shall be locked in case of a change size.
The installation and switch methods of vertical and horizontal milling beds FIG. 1
FIG. 2
10
1
9
8
1
5 6
11
7 2
4
8
3
2
4
3
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The normal bed is a horizontal one. When it switches into a vertical milling bed (as shown in FIG. 2), remove the Junction Block 10 and Spindle 9 and loosen Screw 4 in sequence to remove milling head components; (As shown in FIG. 2) Install Spindle Box 11 in the installing hole behind Ram 8. (Notes: loosen Locking Handle 5 first and make the gap and hole of the locking blocks aligned), loosen Screw 4 and install Milling Head Component 1, then lock Screw 4 to align Locking Handle 5 to 0 and lock it.
After use The power source shall be cut after finishing work. Clean the machine and the environment around it and wipe machine oil on the outside processing face to avoid rust of the surface and the influence on its use and appearance. Gag adjustment After a long period of operation, the gag on the worktable and saddle shall be adjusted to eliminate errors to keep the machine reliable and accurate. Gag parts that need to be adjusted are shown below. 1) Horizontal gag between the worktable and the saddle. 2) Vertical gag between the saddle and the lift. Adjust the gag set screw until the hand wheel is whirled easily and stably, and the worktable does not feel loose. Lock the nut on the set screw to finish the adjustment.
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Troubleshooting This part includes the most common questions and solutions of this model. No adjustment before the power is off and the motor stops running. Symptom Possible reasons Improvements The motor cannot start.
1. 2. 3. 4.
The fuse or the circuit breaker is off.
1. 2. 3.
Does not switch on. Low voltage The motor shuts off or the connecting parts are loose. The carbon brush of the motor does not work. The wire or plug is short-circuited. The circuit board is short-circuited. The fuse or circuit breaker is not correct.
The motor is overheated. The hand wheels of the cross slide or feed slide is too loose.
1. 2. 1. 2. 3.
The motor is over-loaded. Air circulation in the motor is limited. The adjusting screw is not in its place. The hand wheel is loose. The screw components are worn or not in their positions.
The hand wheels of the cross slide or feed slide is too tight.
1. 2. 3.
The adjusting screw is rusty. The adjusting screw is too tight. The worktable is dry.
The machine stops during the operation.
1. 2.
The spindle cannot tightly clamp the milling cutter. T-nut is hard to fix.
SU1
Press the emergency stop switch button. Check whether the voltage is right. Check whether all the joints are loose or off. Change the carbon brush.
1.
3. 4. 5.
Check whether the insulated part of the wire or plug is damaged and replace with extension wires. Check whether the joints are loose, are faulty soldered or insulated, and change them in time. Install the right fuse of circuit breaker. Decrease the load of the motor. Clean the motor to ensure the air circulation. Tighten the adjusting screw and fill lubricating oil on the bed. Tighten the knob of the hand wheel. Tighten all the loose knobs on the screw components. Remove the screw, clean the bed and rust on pile joints, fill lubricating oil and re-tighten the screw. Loosen the screw and fill lubricating oil. Fill lubricating oil on the worktable and hand wheels. Decrease the depth of drilling and milling. Adopt right speed in reference to rotation speed and feed speed list. Change the milling cutter. Change the carbon brush or the motor. Change the gear.
1. 2. 3. 1. 2. 3.
Adjust the right rotation speed or feed speed. Change the milling cutter. Tighten the screw. Fill lubricating oil. Adjust adjusting screws. Clean the conveyor.
2. 3. 1. 2. 1. 2. 3. 1.
2. 3.
3. 4.
The surface of final product is coarse. The milling head can hardly move on the conveyor.
1. 2. 3. 4.
5. 1. 2. 3. 1. 2. 3. 1. 2.
1. 2.
The drilling and milling is too deep. It uses the wrong rotation speed or feed speed during drilling and milling. The milling cutter is damaged. The motor or carbon brush does not work. The gear is damaged. Wrong rotation speed or feed speed. Broken or wrong milling cutter. Over-used adjusting screw Dry conveyor The hand wheel of the Z-axis is too tight. There are scraps on the conveyor. Wrong or mismatched milling cutter. The joint face of the spindle is damaged.
1. 2.
1. 2.
Change the milling cutter. Check and repair the joint face.
T-nut is damaged or wrong. T-slot on the worktable is damaged.
1. 2.
Change the T-nut. Change the worktable or a T-slot in good condition.
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Circuit diagram
For 230V
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For 110V
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Exploded drawing of parts 143 118
113
59
119
142
138
52
130
115
139
50
127
49
112
126
114 123
136
45
58 43 5
137
35
51
134 132 124
117
135
38
39
36
45
46
8 54
91
125 131
31
48
37
116
129
59
47
31
133
120
41
56
122 34
128 140
57
44 13
40 100
55
26
19
11
121
42
31
17 27
30
12 28
31
53
141
16 15 6
10
25
9 15
8
23
21
14
93
23 29
7
32 18
94
33
64
91 8
6
66
7
9
103
12
24
4
102
20 61 109
89
108
90
107
85 103
5
88
22
92
68
106
78
62
77
93
86
82
86
67
111 28
96
83
80 70
110 68
80
69
100
79
87
89
88
90
84 2 73
70
42 101
16
15
87
74
63 97 28
81 76
65 15
68
75 95 97
15 98
3
99 1
28 12
91
68
80 69 70 90 88
89
72 71 91 60
105 104
SU1
15
Part detail list No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
U12303 U12302 GB 818-85 - M6 x 8 U12301 GB 818-85 - M4 x 8 U10203 GB 70-85 - M6 x 25 GB 97.1-85 - 6 GB 70-85 - M6 x 16 U10201 U10204 X20218B01 GB5781-86 M6x50 U10206 GB827-86 2x4 X21118 U10207 U10901A U10902
20
U10904
Dust guard Fixing plate Cross recessed small pan head screw Shield Cross recessed small pan head screw Lock sleeve Hexagon socket head screw Washer Hexagon socket head screw Spindle box Latch segmentⅠ Little handle Locking screw Scale of degrees Rivet for name plate Indicator Latch segmentⅡ Upright post Ram Junction block of horizontal milling bed
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
∮60 GB 97.1-85 - 10 U20231 U20229 U10903A U10905 GB 79-85 - M6 x 30 GB 6172-86 - M6 U10906 U10907 GB 818-85 - M3 x 6 GB 5781-86 - M10x25 GB 6170-86 - M14 GB 301-84 - 8107 GB 301-84 - 8106 GB 810-88 - M27x1.5
Blade milling cutter washer Adjusting washer（Ⅱ） Bronze bushing Spindle of horizontal milling bed Ram gag Slotted headless set screw Hexagon nut Junction block gag Cover Cross recessed small pan head screw Hexagon screw Hexagon nut Thrust ball bearing Thrust ball bearing Slotted round nut
SU1
Part number
Name
SIEG
Quantity 1 1 4 1 6 2 2 6 2 1 1 5 1 1 12 3 1 1 1 1 1 3 6 1 1 1 2 12 1 1 15 3 1 1 1 2 17
No. 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
SU1
Part number GB 894.1 - 25 GB 810-88 - M20x1.5 GB 70-85 - M8 x 25 U10202B02 GB1096-79 3x16 GB1096-79 5x10 U10202B01 U20202 U20205 U20233 U20208 U10202A02 U1020204 1.5x100x9 GB1096-79 4x12 U1020207 U1020208 GB 5781-86 - M6x20 U10202A01 U1020202 GB 278-89 - 1080907 GB 279-89 - 180106 GB 846-85 - ST2.9 x 9.5 U11101 U11102 X211C02 X211C01 X21109 X211C08 X211C06 X211C09 GB 301-84 - 8200 X21111 X21117B U11105 U11109 U11110 U11103 X211C05
Name Circlip Slotted round nut Hexagon socket head screw Permanent-magnet direct current motor Synchronous pulley of motor Parallel key Parallel key Pulley box Washer（Ⅰ） Washer（Ⅱ） Gearbox bracket Dust guard Synchronous pulley of spindle Jugged synchronous belt Parallel key Top cover Bottom cover Hexagon headed bolt R8 Spindle Spindle socket Ditch ball bearing Ditch ball bearing Tapping screw (for sheet metal) Base Lift Worktable Vertical gag Metric vertical screw nut Bearing base Left cover Metric vertical screw Thrust ball bearing Metric dial Hand wheel Nut base Metric lifting nut Metric lifting screw Saddle Horizontal gag
SIEG
Quantity 1 2 1 1 1 3 1 1 2 1 1 1 1 1 3 1 1 4 1 1 2 1 8 1 1 1 1 1 1 1 1 4 2 3 1 1 1 1 1 18
No. 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114
SU1
Part number X21115 X21113 U11111 U11112 GB 889-86 - M8 U11104 U11108 GB 5781-86 - M8x25 GB 301-84 - 8202 U11113 GB1096-79 4x16 X20221 C2A0307 GB 65-85 - M8 x 55 GB 6172-86 - M8 GB 70-85 - M6 x 14 X31131 JB/T7940.4-95 6 X31136 GB 77-85 - M6 x 10 X21103 GB 79-85 M6 x 22 C5C0315 GB 70-85 - M6 x 30 GB 70-85 - M6 x 10 GB 77-85 - M5 x 8 U11114 GB 819-85 - M3x6 X31101 GB 6172-86 - M12 U11106 U11107 GB 70-85 - M4 x 14 GB 71-85 - M5 x 8 U11115 GB 79-85 - M6 x 16 M14
Name Horizontal screw base Metric horizontal screw nut Little cone gear Big cone gear Hexagon locking nut Metric horizontal screw Gag Hexagon headed bolt Thrust ball bearing Cover Parallel key Damping spring Handle Slotted circular headed screw Hexagon nut Hexagon socket head screw Vertical screw bracket left socket Pressed-on forced filling oil cup Left bracket cover Hexagon set screw Metric ruler Hexagon set screw Zero label Hexagon socket head screw Hexagon socket head screw Hexagon set screw Locking nut Cross slot sunk screw Footing adjusting screw Hexagon nut Lifting axis Bearing base Hexagon socket head screw Slotted set screw with cone point Metric dial Slotted headless set screw Light base Magnetic switch Green light
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Quantity 1 1 1 1 3 1 1 3 1 1 3 3 3 3 3 11 1 2 1 2 1 8 1 1 3 2 1 5 4 4 1 1 3 2 1 2 1 1 1 19
No. 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
SU1
Part number GB 818-85 - M5 x 8 HJMF527 GB 818-85 - M4 x 12 GB 6170-86 - M4 500W GB 96-85 - 6 SU11801 SX21803 改制 SU11802 SU11803 SX22511 16 AD21.2 M20B GB 819-85 - M4 x 16 GB 818-85 - M4 x 16 GB 93-87 - M4 GB 845-85 - ST4.2 x 9.5 X-1 SX21802 SX21804
GB 119-86 - B 4 x 8 SX21806
Name Cross recessed small pan head screw Fuse holder Potentiometer knob Cross recessed small pan head screw Hexagon nut Brushless motor Spring washer Switch box Switch box Block 1 Block 2 Air joint Main lable Pendant control Potentiometer Hose fitting Circuit board Cross recessed small pan head screw Cross recessed small pan head screw Spring washer Self set screw X-1 small PCB PCB cover Switch box cover Hose Standard power wire Round pin Soleplate
SIEG
Quantity 3 1 1 2 2 1 1 1 1 1 1 1 1 1 1 3 1 2 4 4 8 1 1 1 1 1 1 1
20
Please read through all the contents and warnings in this safety specification carefully before using the machine.
SU1
SIEG
1
Important Safety Specification
To operators:
1．
To avoid electrical shock and harm, basic safety protection shall be enhanced when using electric tools, machines and equipments;
2．
Keep the environment around the machine clean and tidy, since a disorderly environment will bring danger;
3．
Do not install the machine in places vulnerable to rain or moisture. No flammable liquid (e.g. petroleum) is allowed near the machine;
4．
Children shall stay away from workplace;
5．
All the equipments of the machine shall be equipped with safety grounding devices to protect personal safety;
6．
Operators shall keep a clear head, do not operate when tired;
7．
Drinking and narcotics may affect one’s judgment, so no operators with these conditions are allowed to operate;
8．
Do not wear loose clothes, neckties or precious jewels to avoid dangers of being caught by the moving parts.
9．
Operators shall wear hard hats to cover long hair.
10． Operators shall wear protective goggles in case that iron filings fly into the eyes. 11． During the work, operators shall remain in a correct posture and keep their balance.
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2
Contents i.
Main technical parameters
……. 4
Technical parameters Loading list
ii.
iii.
Appearance and main component diagram of SU1 milling bed
……. 6
Machine installation
……. 7
Basic positioning Cautions before operation
iv.
Driving system
……. 8
v.
Operation and maintenance
……. 9
Electrical operation Mechanical operation
Appendixes vi.
Troubleshooting
…….12
vii.
Circuit diagram
…….13
viii.
Exploded drawing of parts
…….15
Part detail list
…….16
ix.
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3
Brief description SU1 Series milling bed is a small desktop lifting one, which can be switched to vertical or horizontal bed by changing the position of the power head. The vertical bed can do oblique milling by rotating the power head on the vertical plane. The two modes share one power head. The spindle drive of SU1 Series milling bed adopts infinite variable speeds. Comparing with the traditional gear drive and pulley drive, the synchronous pulley drive has a novel structure, low noise, stable drive and easy operation. The parts it can process have a broad range of application. It has comprehensive functions of vertical milling, horizontal milling, drilling, and boring. It is an ideal machine of family modeling, metal-processing learning and processing and repair.
(Ⅰ) Main technical parameters 1. Maximum drilling capacity 16 mm 2. Face milling capacity 16 mm 3. Surface milling capacity 30 mm 4. Maximum blade-shaped cutter diameter 63 mm 5. Maximum distance from the spindle face to the worktable of vertical milling bed 165 mm 6. Maximum distance from the spindle face to the worktable of horizontal milling bed 130 mm 7. Rotating angle of the spindle carrier of vertical milling bed ±45 degrees 8. Taper hole of spindle MT3 or R8 9. Spindle rotation speed (infinitely variable speed) 0-2500 r/ min ±10% 10. Size of the worktable 460×120 mm 11. Size of T-slot 12 mm 12. Lateral moving distance of the worktable 120 mm 13. Vertical moving distance of the worktable 300 mm 14. Z-directed moving distance of the worktable 105 mm 15. Motor power 500 w 16. Net weight / Gross weight: 95/115 kg
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Packing List
No.
Name
Specifications
Quantity
1
Milling bed
SU1
1 set
2
Operation specifications
3
Drill chuck and keys
4
Taper-shank arbor
1 book B16
1~13mm
X20206
1 unit 1 piece
5
Oil can
6
Inner hexagon spanner
S: 3, 4, 5, 6
1 in each size
7
Double-ended spanner
5.5×7, 10×12
1 in each size
8
Double-ended spanner
14×17, 21×24
1 in each size
9
Hook spanner
22~26
1 piece
10
T-nut
X22001
2
11
Gear shift lever
X1025200
1
SU1
1 piece
SIEG
5
(Ⅱ) Appearance and main component diagram of SU1 milling bed
14
4
13
7 7
6 12
8 2
9
10 5
11
4 3 1
No.
Quantity
1
1
2
No.
Quantity
Base
8
1
Spindle box of vertical milling bed
1
Upright post
9
2
Locating locking block
3
1
Lift
10
1
Mounting holes of horizontal milling bed
4
1
Vertical worktable
11
1
Spindle of horizontal milling bed
5
1
Horizontal worktable
12
1
Junction block of horizontal milling bed
6
1
Ram
13
1
Locking lever
7
1
Components of milling head
14
1
Locking mechanism of spindle box
SU1
Name
SIEG
Name
6
(Ⅲ) Machine installation
Basic positioning The whole machine and worktable shall be fixed with four hexagon bolts. Continuous working period and machine accuracy must be taken into consideration. It shall be installed in the proper position to make it available to use. The selection of installation positioning: 1) Rigid worktable shall be padded on a flat adjuster block. 2) In order to avoid the effect of high temperature on the machine, do not install the machine in sunny places. 3) The machine shall be installed away from dusty and wet places to avoid corrosion and rust. Important positioning methods 1） Drill four positioning holes on the mounting surface of the worktable. (Notes: in terms of the installing position, hand wheels of the Yaxis shall be considered for easy rotation and operation.) 2） Adjust the machine to a horizontal position. Use four M10 bolts to fix the worktable and the machine. Before operation When installation is finished, operators shall understand and grasp the basic structure, functions and controlling operations of the machine. Check whether the power source, voltage and the power supply are correct and regular. 1. During installation, all the clamping devices shall be fixed. 2. Check whether the power source and voltage are correct. 3. Before using the machine, fill mechanical lubricating oil to the sliding surface of the machine. 4. Check the chucks, clamping key and fixed pin on the spindle to make them under no load. 5. Check whether the driving parts are regular, whether each operating handles are in right positions, whether the tool clips (drills, milling
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cutters, etc.) are reliable and whether the processing parts are fixed tightly. Open the spindle box to lock the handle. 6. The spindle circles clockwise to start the machine. 7. When the machine is operating, its electrical devices shall conform to the working condition and have safety grounding devices. 8. During the operation, notice and control the machine. If any irregular sign, it shall be stopped and repaired immediately.
(Ⅳ) Driving System The driving system of the milling bed mainly consists of a synchronous pulley, a spindle bearing, a spindle and a motor, a motor synchronous pulley and a synchronous belt. The direct current motor starts power to work through synchronous pulley of motor, synchronous pulley of spindle and the spindle. The rotation speed is within the specified range of 0-2500 r/min by direct current through the infinite variable speed knob, which allows it to change its speed conveniently.
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(Ⅴ)Operation and maintenance Electrical operation B
C
A F G
D E
H
A Power switch B Speed showing plate C Overload indicator D Power indicator E Potentiometer knob F Speed showing socket G Fuse holder H Power cable
Move the speed-adjusting potentiometer E (equipped with a switch) anti-clockwise to “0”, and plug H into the plug base to connect to the power. At this time, the power green light D is luminous. (Note: if the yellow light C is luminous when the power is on, it indicates that the knob of potentiometer E is not pointed to 0. Each time the machine restarts, the knob E shall be pointed to 0.)
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The circuit board of the machine has a function of overloaded protection. Once the drilling and milling amount is oversized, the machine will stop automatically, and the yellow light C is luminous; when it restarts, the knob E shall be pointed to 0. Mechanical operation 1. The machine shall stop when installing cutters and parts. 2. Clean the inner hole of the spindle (Morse No. 3) and cone of the cutter. Push the cutter into the inner hole of the spindle and put the bar to tighten the cutter. 3. Put the part to be processed on the worktable, press it and move it horizontally and vertically to the needed position. 4. Loosen the locking handle of the lift and lift the worktable by swaying the handle. 5. Start the machine and select the rotation speed to do drilling and milling. 6. When milling the part, the spindle box and spindle shall be locked. And vertical, horizontal and lift gag shall be locked in case of a change size.
The installation and switch methods of vertical and horizontal milling beds FIG. 1
FIG. 2
10
1
9
8
1
5 6
11
7 2
4
8
3
2
4
3
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10
The normal bed is a horizontal one. When it switches into a vertical milling bed (as shown in FIG. 2), remove the Junction Block 10 and Spindle 9 and loosen Screw 4 in sequence to remove milling head components; (As shown in FIG. 2) Install Spindle Box 11 in the installing hole behind Ram 8. (Notes: loosen Locking Handle 5 first and make the gap and hole of the locking blocks aligned), loosen Screw 4 and install Milling Head Component 1, then lock Screw 4 to align Locking Handle 5 to 0 and lock it.
After use The power source shall be cut after finishing work. Clean the machine and the environment around it and wipe machine oil on the outside processing face to avoid rust of the surface and the influence on its use and appearance. Gag adjustment After a long period of operation, the gag on the worktable and saddle shall be adjusted to eliminate errors to keep the machine reliable and accurate. Gag parts that need to be adjusted are shown below. 1) Horizontal gag between the worktable and the saddle. 2) Vertical gag between the saddle and the lift. Adjust the gag set screw until the hand wheel is whirled easily and stably, and the worktable does not feel loose. Lock the nut on the set screw to finish the adjustment.
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Troubleshooting This part includes the most common questions and solutions of this model. No adjustment before the power is off and the motor stops running. Symptom Possible reasons Improvements The motor cannot start.
1. 2. 3. 4.
The fuse or the circuit breaker is off.
1. 2. 3.
Does not switch on. Low voltage The motor shuts off or the connecting parts are loose. The carbon brush of the motor does not work. The wire or plug is short-circuited. The circuit board is short-circuited. The fuse or circuit breaker is not correct.
The motor is overheated. The hand wheels of the cross slide or feed slide is too loose.
1. 2. 1. 2. 3.
The motor is over-loaded. Air circulation in the motor is limited. The adjusting screw is not in its place. The hand wheel is loose. The screw components are worn or not in their positions.
The hand wheels of the cross slide or feed slide is too tight.
1. 2. 3.
The adjusting screw is rusty. The adjusting screw is too tight. The worktable is dry.
The machine stops during the operation.
1. 2.
The spindle cannot tightly clamp the milling cutter. T-nut is hard to fix.
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Press the emergency stop switch button. Check whether the voltage is right. Check whether all the joints are loose or off. Change the carbon brush.
1.
3. 4. 5.
Check whether the insulated part of the wire or plug is damaged and replace with extension wires. Check whether the joints are loose, are faulty soldered or insulated, and change them in time. Install the right fuse of circuit breaker. Decrease the load of the motor. Clean the motor to ensure the air circulation. Tighten the adjusting screw and fill lubricating oil on the bed. Tighten the knob of the hand wheel. Tighten all the loose knobs on the screw components. Remove the screw, clean the bed and rust on pile joints, fill lubricating oil and re-tighten the screw. Loosen the screw and fill lubricating oil. Fill lubricating oil on the worktable and hand wheels. Decrease the depth of drilling and milling. Adopt right speed in reference to rotation speed and feed speed list. Change the milling cutter. Change the carbon brush or the motor. Change the gear.
1. 2. 3. 1. 2. 3.
Adjust the right rotation speed or feed speed. Change the milling cutter. Tighten the screw. Fill lubricating oil. Adjust adjusting screws. Clean the conveyor.
2. 3. 1. 2. 1. 2. 3. 1.
2. 3.
3. 4.
The surface of final product is coarse. The milling head can hardly move on the conveyor.
1. 2. 3. 4.
5. 1. 2. 3. 1. 2. 3. 1. 2.
1. 2.
The drilling and milling is too deep. It uses the wrong rotation speed or feed speed during drilling and milling. The milling cutter is damaged. The motor or carbon brush does not work. The gear is damaged. Wrong rotation speed or feed speed. Broken or wrong milling cutter. Over-used adjusting screw Dry conveyor The hand wheel of the Z-axis is too tight. There are scraps on the conveyor. Wrong or mismatched milling cutter. The joint face of the spindle is damaged.
1. 2.
1. 2.
Change the milling cutter. Check and repair the joint face.
T-nut is damaged or wrong. T-slot on the worktable is damaged.
1. 2.
Change the T-nut. Change the worktable or a T-slot in good condition.
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12
Circuit diagram
For 230V
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SIEG
13
For 110V
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14
Exploded drawing of parts 143 118
113
59
119
142
138
52
130
115
139
50
127
49
112
126
114 123
136
45
58 43 5
137
35
51
134 132 124
117
135
38
39
36
45
46
8 54
91
125 131
31
48
37
116
129
59
47
31
133
120
41
56
122 34
128 140
57
44 13
40 100
55
26
19
11
121
42
31
17 27
30
12 28
31
53
141
16 15 6
10
25
9 15
8
23
21
14
93
23 29
7
32 18
94
33
64
91 8
6
66
7
9
103
12
24
4
102
20 61 109
89
108
90
107
85 103
5
88
22
92
68
106
78
62
77
93
86
82
86
67
111 28
96
83
80 70
110 68
80
69
100
79
87
89
88
90
84 2 73
70
42 101
16
15
87
74
63 97 28
81 76
65 15
68
75 95 97
15 98
3
99 1
28 12
91
68
80 69 70 90 88
89
72 71 91 60
105 104
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Part detail list No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
U12303 U12302 GB 818-85 - M6 x 8 U12301 GB 818-85 - M4 x 8 U10203 GB 70-85 - M6 x 25 GB 97.1-85 - 6 GB 70-85 - M6 x 16 U10201 U10204 X20218B01 GB5781-86 M6x50 U10206 GB827-86 2x4 X21118 U10207 U10901A U10902
20
U10904
Dust guard Fixing plate Cross recessed small pan head screw Shield Cross recessed small pan head screw Lock sleeve Hexagon socket head screw Washer Hexagon socket head screw Spindle box Latch segmentⅠ Little handle Locking screw Scale of degrees Rivet for name plate Indicator Latch segmentⅡ Upright post Ram Junction block of horizontal milling bed
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
∮60 GB 97.1-85 - 10 U20231 U20229 U10903A U10905 GB 79-85 - M6 x 30 GB 6172-86 - M6 U10906 U10907 GB 818-85 - M3 x 6 GB 5781-86 - M10x25 GB 6170-86 - M14 GB 301-84 - 8107 GB 301-84 - 8106 GB 810-88 - M27x1.5
Blade milling cutter washer Adjusting washer（Ⅱ） Bronze bushing Spindle of horizontal milling bed Ram gag Slotted headless set screw Hexagon nut Junction block gag Cover Cross recessed small pan head screw Hexagon screw Hexagon nut Thrust ball bearing Thrust ball bearing Slotted round nut
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Part number
Name
SIEG
Quantity 1 1 4 1 6 2 2 6 2 1 1 5 1 1 12 3 1 1 1 1 1 3 6 1 1 1 2 12 1 1 15 3 1 1 1 2 17
No. 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
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Part number GB 894.1 - 25 GB 810-88 - M20x1.5 GB 70-85 - M8 x 25 U10202B02 GB1096-79 3x16 GB1096-79 5x10 U10202B01 U20202 U20205 U20233 U20208 U10202A02 U1020204 1.5x100x9 GB1096-79 4x12 U1020207 U1020208 GB 5781-86 - M6x20 U10202A01 U1020202 GB 278-89 - 1080907 GB 279-89 - 180106 GB 846-85 - ST2.9 x 9.5 U11101 U11102 X211C02 X211C01 X21109 X211C08 X211C06 X211C09 GB 301-84 - 8200 X21111 X21117B U11105 U11109 U11110 U11103 X211C05
Name Circlip Slotted round nut Hexagon socket head screw Permanent-magnet direct current motor Synchronous pulley of motor Parallel key Parallel key Pulley box Washer（Ⅰ） Washer（Ⅱ） Gearbox bracket Dust guard Synchronous pulley of spindle Jugged synchronous belt Parallel key Top cover Bottom cover Hexagon headed bolt R8 Spindle Spindle socket Ditch ball bearing Ditch ball bearing Tapping screw (for sheet metal) Base Lift Worktable Vertical gag Metric vertical screw nut Bearing base Left cover Metric vertical screw Thrust ball bearing Metric dial Hand wheel Nut base Metric lifting nut Metric lifting screw Saddle Horizontal gag
SIEG
Quantity 1 2 1 1 1 3 1 1 2 1 1 1 1 1 3 1 1 4 1 1 2 1 8 1 1 1 1 1 1 1 1 4 2 3 1 1 1 1 1 18
No. 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114
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Part number X21115 X21113 U11111 U11112 GB 889-86 - M8 U11104 U11108 GB 5781-86 - M8x25 GB 301-84 - 8202 U11113 GB1096-79 4x16 X20221 C2A0307 GB 65-85 - M8 x 55 GB 6172-86 - M8 GB 70-85 - M6 x 14 X31131 JB/T7940.4-95 6 X31136 GB 77-85 - M6 x 10 X21103 GB 79-85 M6 x 22 C5C0315 GB 70-85 - M6 x 30 GB 70-85 - M6 x 10 GB 77-85 - M5 x 8 U11114 GB 819-85 - M3x6 X31101 GB 6172-86 - M12 U11106 U11107 GB 70-85 - M4 x 14 GB 71-85 - M5 x 8 U11115 GB 79-85 - M6 x 16 M14
Name Horizontal screw base Metric horizontal screw nut Little cone gear Big cone gear Hexagon locking nut Metric horizontal screw Gag Hexagon headed bolt Thrust ball bearing Cover Parallel key Damping spring Handle Slotted circular headed screw Hexagon nut Hexagon socket head screw Vertical screw bracket left socket Pressed-on forced filling oil cup Left bracket cover Hexagon set screw Metric ruler Hexagon set screw Zero label Hexagon socket head screw Hexagon socket head screw Hexagon set screw Locking nut Cross slot sunk screw Footing adjusting screw Hexagon nut Lifting axis Bearing base Hexagon socket head screw Slotted set screw with cone point Metric dial Slotted headless set screw Light base Magnetic switch Green light
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Quantity 1 1 1 1 3 1 1 3 1 1 3 3 3 3 3 11 1 2 1 2 1 8 1 1 3 2 1 5 4 4 1 1 3 2 1 2 1 1 1 19
No. 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
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Part number GB 818-85 - M5 x 8 HJMF527 GB 818-85 - M4 x 12 GB 6170-86 - M4 500W GB 96-85 - 6 SU11801 SX21803 改制 SU11802 SU11803 SX22511 16 AD21.2 M20B GB 819-85 - M4 x 16 GB 818-85 - M4 x 16 GB 93-87 - M4 GB 845-85 - ST4.2 x 9.5 X-1 SX21802 SX21804
GB 119-86 - B 4 x 8 SX21806
Name Cross recessed small pan head screw Fuse holder Potentiometer knob Cross recessed small pan head screw Hexagon nut Brushless motor Spring washer Switch box Switch box Block 1 Block 2 Air joint Main lable Pendant control Potentiometer Hose fitting Circuit board Cross recessed small pan head screw Cross recessed small pan head screw Spring washer Self set screw X-1 small PCB PCB cover Switch box cover Hose Standard power wire Round pin Soleplate
SIEG
Quantity 3 1 1 2 2 1 1 1 1 1 1 1 1 1 1 3 1 2 4 4 8 1 1 1 1 1 1 1
20
