CN105215778B - A kind of self-feeding and clamping device for processing small shaft class part locating slot - Google Patents
A kind of self-feeding and clamping device for processing small shaft class part locating slot Download PDFInfo
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- CN105215778B CN105215778B CN201510741017.7A CN201510741017A CN105215778B CN 105215778 B CN105215778 B CN 105215778B CN 201510741017 A CN201510741017 A CN 201510741017A CN 105215778 B CN105215778 B CN 105215778B
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- compression spring
- automatic
- clamping
- cylinder
- adjusting screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/06—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of pushers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
Abstract
The invention discloses a kind of self-feeding for processing small shaft class part locating slot and clamping device, including：One feed pipe, one end of the feed pipe is feed end, and its other end is discharge end；One is arranged on the automatic feed mechanism below the discharge end of the feed pipe, pushes after the automatic feed mechanism clamps the small axial workpiece sent out by the feed pipe and upwards；One is arranged on the automatic clamping mechanism above the automatic feed mechanism, and the automatic clamping mechanism will be pushed up the small axial workpiece clamping brought by the automatic feed mechanism, and at the same time, the automatic feed mechanism unclamps the clamping to small axial workpiece；And a PLC, the PLC are connected with the automatic feed mechanism and automatic clamping mechanism respectively.The beneficial effects of the present invention are：It is simple and reliable, cost is low, automatic loading/unloading and Automatic-clamping can be achieved in the supporting PLC of home-made contrivance, reduces labor intensity, effectively improves efficiency.
Description
Technical field
The present invention relates to the self-feeding for processing small shaft class part locating slot and clamping device, suitable in numerical control mill
The processing of small axial workpiece locating slot is completed on bed.
Background technology
Referring to Fig. 1, what is provided in figure is a kind of plunger bushing 10, and plunger bushing 10 is generally by three structures of cylindrical section 11,12,13
Locating slot 14 is formed into, it is necessary to be processed on the external cylindrical surface of the cylindrical section 12 of centre, is easily installed and uses.Conventional processing
Method is then to be processed plunger bushing hand-operated clamping on the external cylindrical surface of plunger bushing by CNC milling machine again by scroll chuck
Form locating slot.Not only labor intensity is big for this method, efficiency is low, and partial plunger set because clamping not just and easily cause it is fixed
Position groove is unilateral serious, causes to scrap, yield rate is relatively low.
Therefore, applicant carried out beneficial exploration and trial, result of the above problems is have found, will be detailed below being situated between
The technical scheme to continue is caused under this background.
The content of the invention
The technical problems to be solved by the invention：A kind of reduction labor intensity is provided in view of the shortcomings of the prior art, carried
High workload efficiency, the self-feeding for processing small shaft class part locating slot for ensureing yield rate and clamping device.
Technical problem solved by the invention can be realized using following technical scheme：
A kind of self-feeding and clamping device for processing small shaft class part locating slot, including：
One feed pipe, one end of the feed pipe is feed end, and its other end is discharge end；
One is arranged on the automatic feed mechanism below the discharge end of the feed pipe, and the automatic feed mechanism will be by described
Push after the small axial workpiece that feed pipe is sent out clamps and upwards；
One is arranged on the automatic clamping mechanism above the automatic feed mechanism, the automatic clamping mechanism will by it is described from
Dynamic feed mechanism pushes up the small axial workpiece brought and clamped, and at the same time, the automatic feed mechanism is unclamped to small axle class
The clamping of part；And
One PLC, the PLC are connected with the automatic feed mechanism and automatic clamping mechanism respectively.
In a preferred embodiment of the invention, the automatic feed mechanism includes：
One mounting bracket；
One is fixedly mounted on the guide pipe that in the mounting bracket and its axial direction is parallel with vertical direction；
One is arranged in the mounting bracket and positioned at guide pipe lower section and the gas being connected with the PLC
Cylinder；
One its lower end is connected with the output end of the cylinder, and its upper end passes through after the guide pipe and the cylinder that upwardly extends
Connecting mandrel；
One is arranged on the clamp assembly on the upper end of the cylinder connecting mandrel and at the discharge end of the feed pipe；
And
One is arranged on the limit assembly in the mounting bracket, is pushed upwards when the clamp assembly clamps small axial workpiece
When, the limit assembly closes the discharge end of the feed pipe.
In a preferred embodiment of the invention, the clamp assembly includes left and right gripping dogs, the first compression bullet
Spring, left and right adjusting screw and left and right adjusting screw mounting seat, the left and right adjusting screw mounting seat are fixedly installed on described
In mounting bracket and positioned at the both sides of the cylinder connecting mandrel, the left and right adjusting screw is revolved respectively is located at the left and right tune
In whole screw mounting seat, the left and right gripping dogs are arranged on the upper end of the cylinder connecting mandrel, and the left and right clamping
The middle part of claw is hinged, and formed with a grasping part for clamping small axial workpiece between its top, its underpart is positioned at described
Between left and right adjusting screw, the both ends of first compression spring are connected to the lower inside of the left and right gripping dogs
On, under the limitation of the left and right adjusting screw, first compression spring is in compressive state, the left and right gripping dogs
On grasping part be in open mode；When clamp assembly pushes upwards, the left and right gripping dogs depart from described left and right
The limitation of adjusting screw, under the elastic-restoring force effect of the first compression spring, the left and right gripping dogs are by small axial workpiece
Clamp.
In a preferred embodiment of the invention, the limit assembly includes being oriented to key seat, guide finger, cylindrical type compression
Spring and baffle plate, the key seat that is oriented to are fixedly installed in the mounting bracket and under the discharge end of the feed pipe
Side, guide finger rotation is located on the guiding key seat and its upper end is through after the guiding key seat and upwardly extending, the circle
Column type compression spring is set in the guide finger and is oriented to through described on the part of key seat, and the baffle plate setting is in the cylindrical type
Compressed in compression spring and by the cylindrical type compression spring, when clamp assembly pushes upwards, the baffle plate is in cylindrical type pressure
The lower motion upwards of elastic force effect of contracting spring simultaneously closes the discharge end of the feed pipe.
In a preferred embodiment of the invention, the automatic clamping mechanism includes：
The left and right positioning seat for the left and right side being arranged on above the automatic feed mechanism；
The one thimble cylinder for being horizontally arranged on the left positioning seat and being connected with the PLC, the thimble gas
The cylinder output shaft of cylinder is towards the right positioning seat and is provided with a thimble；
One is arranged on the spring base on the right positioning seat, and being formed in the spring base has a compression spring active chamber,
The compression spring active chamber is towards offering opening on the side of the left positioning seat；
One is arranged on the movable push rod in the compression spring active chamber；
One is arranged on the second compression spring in the compression spring active chamber, the left end of second compression spring with
The right-hand member connection of the movable push rod, its right-hand member are acted against on the right side of the inwall of the compression spring active chamber；
One is arranged on the collet on the left end of the movable push rod；And
One rotation be located in the opening of the compression spring active chamber be used for the collet is fitted in the work
Locking nut on the left end of dynamic push rod.
As a result of technical scheme as above, the beneficial effects of the present invention are：
1st, it is simple and reliable, cost is low, automatic loading/unloading and Automatic-clamping can be achieved in the supporting PLC of home-made contrivance；
2nd, process automation, labor intensity is reduced；
3rd, a people can operate the device of more playscript with stage directions inventions simultaneously, and operator only needs feed supplement, effectively improves labor
Efficiency of movement.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing plunger bushing.
Fig. 2 is the front view of the automatic feed mechanism of the present invention.
Fig. 3 is the enlarged drawing at the I of Fig. 2.
Fig. 4 is Fig. 2 left view, wherein, the top of automatic feed mechanism has carried out longitudinal section view；
Fig. 5 is the enlarged drawing at the II of Fig. 4.
Fig. 6 is that the clamp assembly of the automatic clamping mechanism of the present invention pushes the front view of small axial workpiece upwards.
Fig. 7 is Fig. 6 left view.
Fig. 8 is the enlarged drawing at the III of Fig. 6.
Fig. 9 is that the automatic clamping mechanism of the present invention is in the operating diagram of undamped state.
Figure 10 is that the automatic clamping mechanism of the present invention is in the operating diagram of clamped condition.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to accompanying drawing, a kind of self-feeding and clamping device for processing small shaft class part locating slot, including feed pipe
100th, automatic feed mechanism 200, automatic clamping mechanism 300 and PLC.
The left end of feed pipe 100 is feed end 110, and its right-hand member is discharge end 120, and feed pipe 100 will enter from feed end 110
Enter the small axial workpiece in feed pipe 100 and be delivered to its discharge end 120 to be discharged.
Automatic feed mechanism 200 is arranged on the lower section of the discharge end 120 of feed pipe 100, and automatic feed mechanism 200 includes peace
Fill support 210, guide pipe 220, cylinder 230, cylinder connecting mandrel 240, clamp assembly 250 and limit assembly 260.
Guide pipe 220 is fixedly mounted in mounting bracket 210 and it is axially parallel with vertical direction.Cylinder 230 is arranged on
In mounting bracket 210 and positioned at the lower section of guide pipe 220, and it is connected with PLC.The lower end of cylinder connecting mandrel 240 and gas
Cylinder 230 output end connection, its upper end pass through guide pipe 220 after and upwardly extend.
Clamp assembly 250 is arranged on the upper end of cylinder connecting mandrel 240 and at the discharge end 120 of feed pipe 100.
Specifically, clamp assembly 250 include the left and right compression spring 253 of gripping dogs 251,252, first, left and right adjusting screw 254,
255 and left and right adjusting screw mounting seat 256,257.Left and right adjusting screw mounting seat 256,257 is fixedly installed on installation branch
On frame 210 and positioned at the both sides of cylinder connecting mandrel 240, left and right adjusting screw 254,255 is revolved respectively is located at left and right adjustment spiral shell
Follow closely in mounting seat 256,257, left and right gripping dogs 251,252 are arranged on the upper end of cylinder connecting mandrel 240, and left and right clamping
The middle part of claw 251,252 is hinged, formed with a grasping part for clamping small axial workpiece, its underpart position between its top
Between left and right adjusting screw 254,255, the both ends of the first compression spring 253 be connected to left and right gripping dogs 251,
In 252 lower inside.Under the limitation of left and right adjusting screw 254,255, the first compression spring 253 is in compressive state,
Grasping part on left and right gripping dogs 251,252 is in open mode；When clamp assembly 250 pushes upwards, left and right folder
Tight claw 251,252 departs from the limitation of left and right adjusting screw 254,255, is acted in the elastic-restoring force of the first compression spring 253
Under, the grasping part on left and right gripping dogs 251,252 clamps small axial workpiece 10.
Limit assembly 260 is arranged on the limit assembly in mounting bracket 210, when clamp assembly 250 clamps small axial workpiece
During 10 upward push, limit assembly 260 closes the discharge end 120 of feed pipe 100.Specifically, limit assembly 260 includes being oriented to
Key seat 261, guide finger 262, cylindrical type compression spring 263 and baffle plate 264, it is oriented to key seat 261 and is fixedly installed on mounting bracket
The lower section of discharge end 120 on 210 and positioned at feed pipe 100, the rotation of guide finger 262 is located on guiding key seat 261 and its upper end is worn
Cross after guiding key seat 261 and upwardly extend, cylindrical type compression spring 263 is set in guide finger 262 through the portion for being oriented to key seat 261
On point, baffle plate 264 is arranged in cylindrical type compression spring 263 and compresses cylindrical type compression spring 263, when clamp assembly 250
Upwards during push, the motion and by the discharging of feed pipe 100 upwards under the elastic force effect of cylindrical type compression spring 263 of baffle plate 264
The closing of end 120.
Automatic clamping mechanism 300 is arranged on the top of automatic feed mechanism 200, it include left and right positioning seat 310,320,
Thimble cylinder 330, spring base 340, movable push rod 350, compression spring 360, collet 370, locking nut 380.
Left and right positioning seat 310,320 is arranged on the left and right side of the top of automatic feed mechanism 200.Thimble cylinder 330 is horizontal
Be connected on left positioning seat 310 and with PLC, the cylinder output shaft of thimble cylinder 330 towards right positioning seat 320 simultaneously
It is provided with a thimble 331.Spring base 340 has an installation axle portion 342, left surface of the installation axle portion 342 from right positioning seat 320
Spring base 340 is fixed on right positioning seat 320 through after its right flank, and using locking nut 343.Structure in spring base 340
Cheng Youyi compression springs active chamber 341, compression spring active chamber 341 is towards offering out on the side of left positioning seat 310
Mouthful.The movable compression spring 360 of push rod 350 and second is arranged in compression spring active chamber 341, the second compression spring 360
Left end is connected with the right-hand member of movable push rod 350, and its right-hand member is acted against on the right side of the inwall of compression spring active chamber 341.Locking
The rotation of nut 380 is located in the opening of compression spring active chamber 341, and collet 370 is fitted in a left side for movable push rod 350
On end.
The present invention's is as follows for the self-feeding of processing small shaft class part locating slot and the operation principle of clamping device：
1st, cylinder 230 is in rollback state, limit of the left and right gripping dogs 251,252 in left and right adjusting screw 254,255
System is lower to be in open mode, and baffle plate 264 compresses cylindrical type compression spring 263, and the discharge end of feed pipe 100 is opened, small axle class zero
Part 10 is sent in the grasping part on left and right gripping dogs 251,252 along from feed pipe 100；
2nd, PLC control cylinder 230 moves, and cylinder 230 drives cylinder connecting mandrel 240 to stretch out upwards so that left,
Right gripping dogs 251,252 move upwards and depart from the limitation of left and right adjusting screw 254,255, in the elasticity of compression spring 253
Under restoring force effect, the grasping part on left and right gripping dogs 251,252 clamps small axial workpiece 10, at the same time, baffle plate
The elastic force effect of 264 cylindrical type compression springs 263 is lower to move and closes the discharge end 120 of feed pipe 100, cylinder 230 upwards
The small axial workpiece 10 being clamped between left and right gripping dogs 251,252 is pushed to the thimble 331 and bullet of thimble cylinder 330
Between spring chuck 370, and three is located on same axis；
3rd, PLC driving thimble cylinder 330 acts, and the thimble 331 on thimble cylinder 330 withstands small axial workpiece 10
Left side endoporus, make small axial workpiece 10 right side external cylindrical surface enter collet 370 endoporus, contact spring chuck 370
Start compression spring chuck 370 after inner face, so that the male cone (strobilus masculinus) of collet 370 is caused by the extruding of spring housing inner conical surface
The Internal Hole Deformation of collet 370, until clamping small axial workpiece 10, at the same time, movable push rod 350 is flat by small axial workpiece 10
Face thrust compression compression spring 360.Then, cylinder 230 is retracted, and finally starts milling locating slot, machines back center cylinder 330
Retract, the thimble 331 on thimble cylinder 330 unclamps small axial workpiece 10 and retracted, movable push rod 350 because compressed spring 360 to
The preceding small axial workpiece 10 for releasing the good locating slot of milling, slotting disk is fallen into so as to which small axial workpiece 10 can unload automatically.This is followed
Ring terminates, and next time, circulation started.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
- A kind of 1. self-feeding and clamping device for processing small shaft class part locating slot, it is characterised in that including：One feed pipe, one end of the feed pipe is feed end, and its other end is discharge end；One is arranged on the automatic feed mechanism below the discharge end of the feed pipe, and the automatic feed mechanism will be by the feeding Push after the small axial workpiece that pipe is sent out clamps and upwards；One is arranged on the automatic clamping mechanism above the automatic feed mechanism, and the automatic clamping mechanism will be sent automatically by described Material mechanism pushes up the small axial workpiece brought and clamped, and at the same time, the automatic feed mechanism is unclamped to small axial workpiece Clamping；AndOne PLC, the PLC are connected with the automatic feed mechanism and automatic clamping mechanism respectively；The automatic feed mechanism includes：One mounting bracket；One is fixedly mounted on the guide pipe that in the mounting bracket and its axial direction is parallel with vertical direction；One is arranged in the mounting bracket and positioned at guide pipe lower section and the cylinder being connected with the PLC；One its lower end is connected with the output end of the cylinder, its upper end pass through the guide pipe after and upwardly extend cylinder connection Mandrel；One is arranged on the clamp assembly on the upper end of the cylinder connecting mandrel and at the discharge end of the feed pipe；AndOne is arranged on the limit assembly in the mounting bracket, when the clamp assembly, which clamps small axial workpiece, to be pushed upwards, The limit assembly closes the discharge end of the feed pipe；The clamp assembly includes left and right gripping dogs, the first compression spring, left and right adjusting screw and left and right adjusting screw Mounting seat, the left and right adjusting screw mounting seat are fixedly installed in the mounting bracket and are located at the cylinder connecting mandrel Both sides, the left and right adjusting screw is revolved respectively to be located in the left and right adjusting screw mounting seat, the left and right gripping dogs The upper end of the cylinder connecting mandrel is arranged on, and the middle part of the left and right gripping dogs is hinged, formed with one between its top For clamping the grasping part of small axial workpiece, its underpart is between the left and right adjusting screw, first compression spring Both ends be connected in the lower inside of the left and right gripping dogs, under the limitation of the left and right adjusting screw, institute State the first compression spring and be in compressive state, the grasping part on the left and right gripping dogs is in open mode；When clamping group When part pushes upwards, the left and right gripping dogs depart from the limitation of the left and right adjusting screw, in the bullet of the first compression spring Property restoring force effect under, the left and right gripping dogs clamp small axial workpiece.
- 2. the self-feeding for processing small shaft class part locating slot and clamping device, its feature exist as claimed in claim 1 In the limit assembly includes being oriented to key seat, guide finger, cylindrical type compression spring and baffle plate, and the guiding key seat, which is fixed, to be set The lower section of the discharge end in the mounting bracket and positioned at the feed pipe is put, the guide finger rotation is located at the guiding key seat Through after the guiding key seat and upwardly extending, the cylindrical type compression spring is set in the guide finger and passed through for upper and its upper end Described to be oriented on the part of key seat, the baffle plate setting is in the cylindrical type compression spring and by the cylindrical type compression spring Compression, when clamp assembly pushes upwards, baffle plate motion and by institute upwards under the elastic force effect of cylindrical type compression spring State the discharge end closing of feed pipe.
- 3. the self-feeding for processing small shaft class part locating slot and clamping device, its feature exist as claimed in claim 1 In the automatic clamping mechanism includes：The left and right positioning seat for the left and right side being arranged on above the automatic feed mechanism；The one thimble cylinder for being horizontally arranged on the left positioning seat and being connected with the PLC, the thimble cylinder Cylinder output shaft is towards the right positioning seat and is provided with a thimble；One is arranged on the spring base on the right positioning seat, and being formed in the spring base has a compression spring active chamber, described Compression spring active chamber is towards offering opening on the side of the left positioning seat；One is arranged on the movable push rod in the compression spring active chamber；One is arranged on the second compression spring in the compression spring active chamber, the left end of second compression spring with it is described The right-hand member connection of movable push rod, its right-hand member are acted against on the right side of the inwall of the compression spring active chamber；One is arranged on the collet on the left end of the movable push rod；AndOne rotation be located in the opening of the compression spring active chamber be used for the collet is fitted in the movable top Locking nut on the left end of bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741017.7A CN105215778B (en) | 2015-11-03 | 2015-11-03 | A kind of self-feeding and clamping device for processing small shaft class part locating slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741017.7A CN105215778B (en) | 2015-11-03 | 2015-11-03 | A kind of self-feeding and clamping device for processing small shaft class part locating slot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105215778A CN105215778A (en) | 2016-01-06 |
| CN105215778B true CN105215778B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510741017.7A Active CN105215778B (en) | 2015-11-03 | 2015-11-03 | A kind of self-feeding and clamping device for processing small shaft class part locating slot |
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| CN106392563B (en) * | 2016-11-24 | 2019-09-13 | 北京中科万盛智能装备科技有限公司 | Nut feeding external member and its charging method |
| CN107225206B (en) * | 2017-06-30 | 2019-02-01 | 太仓市华天冲压五金制品厂 | A kind of feed device for the riveting of axis class |
| CN107225897B (en) * | 2017-07-25 | 2019-05-31 | 安徽速达数控设备有限责任公司 | A kind of Combined board Carving Machining device |
| CN107824863B (en) * | 2017-11-16 | 2019-03-29 | 宁波兴业盛泰集团有限公司 | A kind of new copper band bead cutter can guarantee both sides cutting output balance |
| CN108458178A (en) * | 2018-01-30 | 2018-08-28 | 中山市铧禧电子科技有限公司 | A kind of test gas-cooker and air source automatic butt jointing device |
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| JPH06254739A (en) * | 1993-03-03 | 1994-09-13 | Synx Kk | Work ejecting device for beveling machine |
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| CN202006386U (en) * | 2011-01-30 | 2011-10-12 | 广州美亚股份有限公司 | End facing and feeding device for pipe fittings |
| CN202438877U (en) * | 2012-01-17 | 2012-09-19 | 山东立辉拉床制造有限公司 | Automatic feeding device of shaft sleeve type parts |
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| Publication number | Publication date |
|---|---|
| CN105215778A (en) | 2016-01-06 |
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