CN113878392A - Overturning clamp for machining roller pocket holes of large-sized bearing retainer - Google Patents
Overturning clamp for machining roller pocket holes of large-sized bearing retainer Download PDFInfo
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- CN113878392A CN113878392A CN202111353091.3A CN202111353091A CN113878392A CN 113878392 A CN113878392 A CN 113878392A CN 202111353091 A CN202111353091 A CN 202111353091A CN 113878392 A CN113878392 A CN 113878392A
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- 238000003754 machining Methods 0.000 title claims description 17
- 230000007306 turnover Effects 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims 4
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 241001149761 Planera aquatica Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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Abstract
The invention discloses a turning clamp for processing a roller pocket of a large-scale bearing retainer, which is used for processing the pocket of the bearing retainer by utilizing the turning angle of a turning bottom plate around a rotating shaft and is beneficial to ensuring the precision of an included angle between the central line of the pocket in the bearing retainer and the rotary axis of a bearing. And then the machine tool completes the processing of the pockets of the bearing retainer one by one through the rotation of the rotating table, thereby improving the processing efficiency. The executing mechanism plays a role in balancing load on the turnover bottom plate, so that the turnover bottom plate is not twisted. The in-place locking assembly is used for locking and positioning the turnover bottom plate, so that the working safety of the turnover bottom plate is ensured.
Description
Technical Field
The invention relates to a turning clamp, in particular to a turning clamp for processing a roller pocket of a large-scale bearing retainer.
Background
As shown in fig. 1-2, the pocket centerline 22 of the pocket 21 in the bearing cage 20 is at an angle to the axis of rotation of the bearing that is primarily designed to withstand combined radial and axial loads. Because of different specific bearing models, the included angle between the pocket axis 22 and the rotation axis of the bearing is different, and the larger the angle is, the larger the bearing capacity is. Therefore, the more difficult it is to ensure the angle between the pocket center line 22 in the bearing holder 20 and the axis of rotation of the bearing during machining. Therefore, the accuracy of the included angle directly determines the working efficiency and the working accuracy of the bearing.
At present often, in the bearing holder 20 processing of 700 to the interval of 1600 ranges in the quarter for in the quarter, when the pocket 21 of processing bearing holder 20, adopt following several kinds of modes usually:
firstly, a common planer type milling machine is adopted, a common clamp for manually adjusting the angle is arranged on a workbench to process the pocket 21, the angle adjustment of the manual clamp is difficult, and the precision is not high. When the specification and model of the product processing are changed, the adjusting time of the clamp is generally not less than 2-3 hours, and the processing efficiency is low. Meanwhile, because the workpiece is in an inclined state during clamping, the positioning, clamping and alignment are difficult, and unsafe factors exist because the weight of the workpiece is generally 1500kg plus materials. This type of processing is inefficient and its capacity is difficult to guarantee.
Secondly, an angle head is arranged at the end part of a main shaft of the machine tool, and the axial included angle between a cutter and the bearing retainer 20 is changed to realize the processing of the pocket 21. The angle head is used for solving the problems of adjusting the angle of the cutter and the angle of a workpiece and clamping the workpiece, but after the angle head is used, the main shaft of the machine tool is subjected to loads which are alternated in the radial direction and the axial direction, the performance of the main shaft is influenced, the processing capacity of the machine tool is reduced, the rigidity of the cutter is deteriorated, the specification of a processable product is reduced, and the processing efficiency is reduced.
The method is limited by the performance parameters of the machine tool, so that the bearing retainer 20 which is larger than the machining range of the machine tool still needs to adopt the first machining mode.
Thirdly, the five-axis planer type milling machine is adopted for processing, although the included angle between the central line 22 of the pocket hole in the bearing retainer 20 and the rotary axis of the bearing is favorably ensured, the equipment cost is higher than that of a common machine tool, and the processing cost of the product is greatly increased. The high processing cost thereof increases the selling price of the product.
Disclosure of Invention
The invention mainly aims to overcome the defects in the technical problems and provides a turning clamp for machining a roller pocket of a large-sized bearing retainer.
In order to overcome the problems, the invention adopts the technical scheme that:
including anchor clamps base, setting be in drive division, setting on the anchor clamps base be in on the anchor clamps base and with transmission portion, one end that the drive division is connected with transmission portion articulated connecting rod, with connecting rod other end articulated upset bottom plate, setting are in the revolving stage on the upset bottom plate, be used for with the pivot that the upset bottom plate articulated on the anchor clamps base and coaxial setting are in the last angle encoder of pivot tip, through drive division drive transmission is rotatory, will the linear motion that the drive division produced passes through the connecting rod with the upset bottom plate and the upset of revolving stage revoluting shaft on the upset bottom plate, and will the upset bottom plate and the revolving stage revoluting shaft on the upset bottom plate angle of overturning shaft are fed back to control system through angle encoder.
Compared with the prior art, the invention has the beneficial effects that:
the machining of the pocket hole of the bearing retainer is realized by utilizing the angle of the turnover bottom plate turning around the rotating shaft, and the precision of the included angle between the central line of the pocket hole in the bearing retainer and the rotary axis of the bearing is favorably ensured.
And then the machine tool completes the processing of the pockets of the bearing retainer one by one through the rotation of the rotating table, thereby improving the processing efficiency.
The executing mechanism plays a role in balancing load on the turnover bottom plate, so that the turnover bottom plate is not twisted.
The in-place locking assembly is used for locking and positioning the turnover bottom plate, so that the working safety of the turnover bottom plate is ensured.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description;
FIG. 1 is a top view of a bearing cage;
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4 is a schematic perspective view of the bearing cage of the present invention;
FIG. 5 is an enlarged partial view of the area D shown in FIG. 4;
FIG. 6 is a front view of the present invention;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;
reference numerals: 1. a drive section; 2. A clamp base; 3. A ball screw; 4. a slide plate; 5. an actuator; 6. A connecting rod; 7. A rotating table; 8. A rotating shaft; 9. An angle encoder; 10. Turning over the bottom plate; 11. The in-place locking assembly; 12. A linear guide rail; 13. a slider; 14. a bearing seat; 15. a transmission section; 16. Sliding a screw nut; 17. hoisting a shaft; 18. A counter bore seat; 19. a trapezoidal bolt; 20. A bearing retainer; 21. A pocket hole; 22. A pocket centerline;
1-1, a motor with a braking device; 1-2, a speed reducer; 1-3, a connecting seat; 1-4, a coupler;
11-1, a first bracket; 11-2, a sliding seat, 11-3 and a gland; 11-4, an oil cylinder body; 11-5, a piston rod; 11-6, a second bracket; 11-7, a locking pad; 11-8, arc-shaped sliding holes; 11-9, adjusting rod; 11-10 and an oil inlet; 11-11, a spring;
Detailed Description
Example 1
As shown in fig. 3-4 and known from fig. 1-2, a turning fixture for machining a roller pocket of a large bearing retainer is provided, which includes a fixture base 2, a driving portion 1 disposed on the fixture base 2, a transmission portion 15 disposed on the fixture base 2 and connected to the driving portion 1, a connecting rod 6 having one end hinged to the transmission portion 15, a turning base plate 10 hinged to the other end of the connecting rod 6, a rotating table 7 disposed on the turning base plate 10, a rotating shaft 8 for hinging the turning base plate 10 to the fixture base 2, and an angle encoder 9 coaxially disposed on an end of the rotating shaft 8, wherein the fixture base 2 is used for connecting to a worktable of a machine tool, the rotating shaft 8 is fixedly connected to the fixture base 2, and the rotating table 7 is used for clamping a bearing retainer 20; through drive division 1 drive transmission portion 15 is rotatory, will the linear motion that drive division 15 produced through connecting rod 6 with the upset bottom plate 10 and the upset of revolving stage 7 on the upset bottom plate 10 around 8 upset of rotating shaft, and will the upset bottom plate 10 and the angle of the upset of revolving stage 7 on the upset bottom plate 10 around 8 upset of rotating shaft feed back to control system through angle encoder 9, and its angle that utilizes the upset bottom plate 10 to overturn around 8 shafts realizes the processing to the pocket 21 of bearing retainer 20, does benefit to the contained angle precision of the rotation axis of guaranteeing pocket central line 22 in the bearing retainer 20 and bearing. And then the rotation of the rotating table 7 is used for finishing the processing of the pockets 21 of the bearing retainer 20 by the machine tool one by one, thereby improving the processing efficiency. The rotating table 7 is a chuck commonly used in machine tools, such as a chuck on a vertical lathe. The chuck is provided with a clamping claw and a trapezoidal bolt for positioning and clamping the bearing retainer 20, and a driving device for driving the rotating table 7 to rotate is arranged on the overturning bottom plate 10, so that the clamping and processing safety of the bearing retainer 20 is guaranteed. Compared with the first processing mode, the bearing retainer 20 is more favorably clamped, the driving part 1 drives the transmission part 15 to rotate, the linear motion generated by the driving part 15 withdraws the turnover bottom plate 10 through the connecting rod 6, and the table top on the rotating table 7 on the turnover bottom plate 10 is in a parallel state with the clamp base 2, so that the bearing retainer 20 can be safely clamped, and the bearing retainer 20 does not slide obliquely.
Further, as shown in fig. 5 and as can be seen from fig. 1 or fig. 2, the driving part 1 drives the transmission part 15 to rotate: the driving part 1 comprises connecting seats 1-3 arranged on a clamp base 2, speed reducers 1-3 arranged on the front end faces of the connecting seats 1-3, couplers 1-4 arranged in the connecting seats 1-3 and having one end connected with a transmission part 15 and the other end connected with the output ends of the speed reducers 1-2, and motors 1-1 with braking devices and connected with the input ends of the speed reducers 1-3. When the turnover bottom plate 10 is turned over to a required angle, after the motor 1-1 with the braking device stops running, the connecting rod 6 supports and fixes the turnover bottom plate 10 by the braking of the braking device of the motor 1-1 with the braking device, so as to prevent the turnover bottom plate from descending.
Furthermore, the other end of the connecting rod 6 is hinged above the front end part of the turnover bottom plate 10, so that a certain included angle is formed between the connecting rod 6 and the clamp base 2 when the turnover bottom plate 1 falls back, and therefore the connecting rod 6 can jack up the turnover bottom plate 10 again, and the connecting rod 6 does not have a dead point in mechanical transmission.
Further, as can be seen from fig. 3 to 4, the driving portion 15 generates the linear motion by: the transmission part 15 comprises a bearing seat 14 arranged on the fixture base 2, a ball screw 3, a linear guide rail 12, a sliding screw nut 16, a sliding plate 4 and a sliding block 13, wherein one end of the ball screw 3 is connected with the bearing seat 14, the other end of the ball screw 3 is connected with a shaft coupling 1-4 of the driving part 1, the linear guide rail 12 is arranged on two sides of the ball screw 3 and fixed on the fixture base 2, the sliding screw nut 16 is connected with the ball screw 3, the sliding plate 4 is connected with the sliding screw nut 16 and used for being hinged with one end of the connecting rod 6, and the sliding block 13 is arranged at the bottom end of the sliding plate 4 and used for being connected with the linear guide rail 12.
When the driving part 1 drives the ball screw 3 to rotate, the sliding nut 16 drives the sliding plate 4 to move linearly, and the sliding plate 4 is hinged with the connecting rod 6 for jacking the turnover bottom plate 10, so that the connecting rod 6 works under the working condition with load, and the connecting rod 6 can transmit the load to the sliding plate 4; in order to resolve the load force on the slide 4 and to make the slide 4 operate smoothly, a slider 13 for connecting to the linear guide rail 12 is provided at the bottom end of the slide 4, the load force is relieved by the sliding of the slider 13 on the linear guide rail 12, and the screwing resistance of the ball screw 3 and the slide nut 16 is reduced, so that the slide 4 of the driving part 15 is linearly moved by the screwing of the ball screw 3 and the slide nut 16 and the sliding of the slider 13 on the linear guide rail 12, and the link 6 of the slide 4 can jack up the turnover base plate 10.
Further, the both sides face of anchor clamps base 2 is equipped with respectively and is used for hoist and mount transportation hoist and mount axle 17 and is used for the trapezoidal bolt 19 of being connected anchor clamps base 2 with the lathe frock platform, is located anchor clamps base 2 higher authority and the juncture of side still are equipped with counter bore seat 18, counter bore seat 18 is used for with anchor clamps base 2 is fixed with the lathe workstation.
Preferably, the angular encoder 9 is Siemens' model 6FX2001-5FD25-1AA0 angular encoder, also known in the industry as absolute encoder; the input shaft of the angle encoder 9 drives the code wheel inside the encoder to rotate, a plurality of scribed lines are arranged in the circumferential direction of the code wheel, and the encoder sends out unique binary codes corresponding to the rotation angles of the code wheel according to the positions of the scribed lines. This binary code is determined solely by the mechanical position of the code wheel as it rotates. The angle encoder is coaxially installed with the rotating shaft 8 and synchronously rotates. The record obtained by the angle encoder is fed back to the control system.
Example 2
Preferably, on the basis of embodiment 1, the present embodiment further includes an actuating mechanism 5 disposed on the fixture base 2 and located at two sides of the transmission portion 15, one end of the actuating mechanism 5 is hinged to the fixture base 2, and the other end of the actuating mechanism 5 is hinged above the front end portion of the turnover bottom plate 10. More specifically, the actuator 5 is a hydraulic cylinder.
When the bearing retainer processing device works, the execution mechanism 5 is externally connected with a hydraulic station to jack the turnover bottom plate 10 by the auxiliary connecting rod 6, and when a large-sized bearing retainer is processed, the execution mechanism 5 plays a role in balancing load on the turnover bottom plate 10, so that the turnover bottom plate 10 is not twisted.
Example 3
As a preferred embodiment, on the basis of the above embodiment 1 and/or embodiment 2, as shown in fig. 6 to 7, in order to ensure the safety of the turnover base plate 10, the present embodiment further includes an in-place locking assembly 11, which is disposed on the fixture base 2 at one end and on the turnover base plate 10 at one end, and is used for locking and positioning the turnover base plate 10.
The in-place locking assembly 11 comprises a first support 11-1 arranged on a turning bottom plate 10, a second support 11-6 arranged on the clamp base 2 and provided with an arc-shaped sliding hole 11-8, a sliding seat 11-2 arranged on the first support 11-1, an oil cylinder body 11-4 arranged in an inner cavity of the sliding seat 11-2, a piston rod 11-5 with one end arranged in the oil cylinder body 11-4 and the other end connected with the arc-shaped sliding hole 11-8 of the second support 11-6, a gland 11-3 connected with one end of the sliding seat 11-2 and provided with an adjusting rod 11-9 at the core part, a spring 11-11 arranged in the inner cavity of the sliding seat 11-2, one end connected with the piston rod 11-5 and the other end connected with the adjusting rod 11-9, and locking pads 11-5 arranged on the piston rod 11-5 and respectively positioned at two sides of the second support 11-6 7, an oil inlet 11-10 penetrating through the inner cavity of the oil cylinder body 11-4 is further formed in the gland 11-3.
The adjusting rod 11-9 compresses the spring 11-11 by adjusting the screwing distance between the gland 11-3 and the adjusting rod 11-9, the piston rod 11-5 extends out under the action of the spring 11-11, the in-place locking assembly 11 is in a loosening state, the locking pad 11-7 on the right side of the second support 11-6 is in a loosening state, and the piston rod 11-5 can slide along the arc-shaped sliding hole 11-8 on the second support 11-6.
When the oil is fed from the oil inlet 11-10, the piston rod 11-5 is moved to the gland 11-3 side under the action of oil pressure, and the oil cylinder body 11-4 is moved to the second bracket 11-6 side in the sliding seat 11-2. When the piston rod 11-5 moves towards the gland 3 side, the piston rod 11-5 pulls the locking pad 11-7 positioned on the right side surface of the second bracket 11-6 to move leftwards and press the right side surface of the second bracket 11-6; when the oil cylinder body 11-4 moves towards the second support 11-6 in the sliding seat 11-2, the locking pad 11-7 positioned on the left side surface of the second support 11-6 leans against the end surface of the oil cylinder body 11-4, so that the locking pads 11-7 positioned on the two sides of the second support 11-6 on the piston rod 11-5 clamp the second support 11-6, the turnover bottom plate 10 is fixed, the supporting and fixing effects are achieved, and meanwhile, the rigidity of the whole structure is improved.
The invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. The utility model provides a upset anchor clamps that is used for processing of large-scale bearing holder roller pocket hole which characterized in that: comprises a clamp base (2), a driving part (1) arranged on the clamp base (2), a transmission part (15) arranged on the clamp base (2) and connected with the driving part (1), a connecting rod (6) with one end hinged with the transmission part (15), a turnover bottom plate (10) hinged with the other end of the connecting rod (6), a rotating platform (7) arranged on the turnover bottom plate (10), a rotating shaft (8) used for hinging the turnover bottom plate (10) on the clamp base (2), and an angle encoder (9) coaxially arranged on the end part of the rotating shaft (8), wherein the linear motion generated by the driving part (15) turns the turnover bottom plate (10) and the rotating platform (7) on the turnover bottom plate (10) around the rotating shaft (8) through the connecting rod (6) by driving the driving part (1) to rotate, and the overturning angle of the overturning bottom plate (10) and the overturning angle of the rotating platform (7) on the overturning bottom plate (10) around the rotating shaft (8) is fed back to a control system through an angle encoder (9).
2. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 1, wherein: the clamp is characterized by further comprising an actuating mechanism (5) which is arranged on the clamp base (2) and located on two sides of the transmission portion (15), one end of the actuating mechanism (5) is hinged to the clamp base (2), and the other end of the actuating mechanism (5) is hinged to the upper portion of the front end portion of the turnover bottom plate (10).
3. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 2, wherein: the actuating mechanism (5) is a hydraulic oil cylinder.
4. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 1, wherein: the fixture comprises a fixture base (2) and an in-place locking assembly (11), wherein one end of the fixture base is arranged on the fixture base (2), and one end of the fixture base is arranged on the turnover bottom plate (10) and used for locking and positioning the turnover bottom plate (10).
5. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 4, wherein: the in-place locking assembly (11) comprises a first support (11-1) arranged on a turning bottom plate (10), a second support (11-6) arranged on the clamp base (2) and provided with an arc-shaped sliding hole (11-8), a sliding seat (11-2) arranged on the first support (11-1), an oil cylinder body (11-4) arranged in an inner cavity of the sliding seat (11-2), a piston rod (11-5) with one end arranged in the oil cylinder body (11-4) and the other end connected with the arc-shaped sliding hole (11-8) of the second support (11-6), a gland (11-3) connected with one end of the sliding seat (11-2) and a core part provided with an adjusting rod (11-9), and a spring (11-3) arranged in the inner cavity of the sliding seat (11-2), one end connected with the piston rod (11-5) and the other end connected with the adjusting rod (11-9) -11) and locking pads (11-7) arranged on the piston rod (11-5) and respectively positioned on two sides of the second support (11-6), wherein an oil inlet (11-10) penetrating through the inner cavity of the oil cylinder body (11-4) is further arranged on the gland (11-3).
6. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 1, wherein: the driving part (1) comprises a connecting seat (1-3) arranged on a clamp base (2), a speed reducer (1-3) arranged on the front end face of the connecting seat (1-3), a coupler (1-4) arranged in the connecting seat (1-3) and with one end connected with a transmission part (15) and the other end connected with the output end of the speed reducer (1-2), and a motor (1-1) which is connected with the input end of the speed reducer (1-3) and is provided with a braking device.
7. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 1, wherein: the transmission part (15) comprises a bearing seat (14) arranged on the clamp base (2), a ball screw (3) with one end connected with the bearing seat (14) and the other end connected with a coupler (1-4) of the driving part (1), a linear guide rail (12) arranged on the clamp base (2) and fixed on two sides of the ball screw (3), a sliding screw nut (16) connected on the ball screw (3), a sliding plate (4) connected with the sliding screw nut (16) and used for being hinged with one end of a connecting rod (6), and a sliding block (13) arranged at the bottom end of the sliding plate (4) and used for being connected with the linear guide rail (12).
8. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 1, wherein: the other end of the connecting rod (6) is hinged above the front end part of the turnover bottom plate (10).
9. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 1, wherein: the two side faces of the clamp base (2) are respectively provided with a hoisting shaft (17) for hoisting and transporting and a trapezoidal bolt (19) for connecting the clamp base (2) with a machine tool tooling table, the trapezoidal bolt is located at the junction of the upper face and the side face of the clamp base (2) and is also provided with a counter bore seat (18), and the counter bore seat (18) is used for fixing the clamp base (2) with the machine tool worktable.
10. The turning clamp for machining the large-size bearing cage roller pockets as claimed in claim 1, wherein: the angular encoder (9) is Siemens type 6FX2001-5FD25-1AA0 angular encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111353091.3A CN113878392A (en) | 2021-11-16 | 2021-11-16 | Overturning clamp for machining roller pocket holes of large-sized bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111353091.3A CN113878392A (en) | 2021-11-16 | 2021-11-16 | Overturning clamp for machining roller pocket holes of large-sized bearing retainer |
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| Publication Number | Publication Date |
|---|---|
| CN113878392A true CN113878392A (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111353091.3A Pending CN113878392A (en) | 2021-11-16 | 2021-11-16 | Overturning clamp for machining roller pocket holes of large-sized bearing retainer |
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| CN (1) | CN113878392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115283743A (en) * | 2022-10-09 | 2022-11-04 | 南通阿米利自动化科技有限公司 | Automatic shearing equipment for bearing retainer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115283743A (en) * | 2022-10-09 | 2022-11-04 | 南通阿米利自动化科技有限公司 | Automatic shearing equipment for bearing retainer |
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