CN217142982U - Hub bearing outer ring press-fitting equipment - Google Patents
Hub bearing outer ring press-fitting equipment Download PDFInfo
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- CN217142982U CN217142982U CN202220768435.0U CN202220768435U CN217142982U CN 217142982 U CN217142982 U CN 217142982U CN 202220768435 U CN202220768435 U CN 202220768435U CN 217142982 U CN217142982 U CN 217142982U
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Abstract
The utility model discloses a wheel hub bearing inner race pressure equipment belongs to mechanical automation equipment technical field, including the equipment rack, be equipped with last pressure equipment mechanism and the pressure equipment mechanism down that the longitudinal symmetry set up in the equipment rack, go up pressure equipment mechanism and be equipped with respectively on the pressure equipment mechanism down and compress tightly the pressure head with pressing down and sticis the head, the below of going up the pressure head is connected with the bearing inner race pressure head, the top of pressing down the mechanism is equipped with lifts positioning mechanism, the top of lifting positioning mechanism is equipped with the top locating plate, be equipped with the space that is used for compressing tightly the pressure head down and wears out on the top locating plate, the side of lifting positioning mechanism is equipped with the side and pushes away the mechanism. The mode of manually placing the outer ring of the tapered roller bearing in the prior art is broken, the labor cost is saved, and the working efficiency is improved; the realization of automation and intellectualization is facilitated; the problems in the prior art are solved.
Description
Technical Field
The utility model relates to a hub bearing outer lane pressure equipment belongs to mechanical automation equipment technical field.
Background
The special vehicle axle hub needs to be provided with the tapered roller bearing outer ring in a press-fitting mode, the whole axle rotates after being assembled and rotates by means of the tapered roller bearing, equipment for press-fitting the bearing outer ring is a customer self-made tool or a press, the tapered roller bearing outer ring is stored by a material frame in a workshop in a traditional mode, the material is manually taken during working, the tapered roller bearing outer ring is placed in the hub for press-fitting, then the hub is manually turned over for 180 degrees, the bearing outer ring is placed in the hub again, and the press-fitting is completed for the second time. At present, manufacturers do not have a good solution, and the traditional scheme is as follows: 1: the material frame is used for storing the outer ring of the tapered roller bearing, and the material is manually taken from the frame for discharging; 2: the mechanical automation is difficult to realize, and even if some manufacturers want to use special machines to grab the outer rings of the tapered roller bearings, the outer rings of the tapered roller bearings are accumulated and stored in the material frame and are scattered together, so that the outer rings are difficult to grab; the traditional mode has high labor intensity and low efficiency, and occasionally the outer ring of the tapered roller bearing is not pressed in place or is deflected. Therefore, how to realize the automatic press fitting of the outer ring of the hub bearing becomes a technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a wheel hub bearing inner race pressure equipment has solved the problem that appears among the prior art.
A wheel hub bearing inner race pressure equipment, including the equipment rack, be equipped with last pressure equipment mechanism and the pressure equipment mechanism down that the longitudinal symmetry set up in the equipment rack, go up pressure equipment mechanism and be equipped with respectively on the pressure equipment mechanism down and compress tightly the head with compressing tightly, the below that compresses tightly the pressure head on is connected with the bearing inner race pressure head, the top of pressure equipment mechanism is equipped with down and lifts positioning mechanism, the top of lifting positioning mechanism is equipped with the top board of lifting, be equipped with the space that is used for compressing tightly the pressure head down and wears out on the board is lifted at the top, the side of lifting positioning mechanism is equipped with the side and pushes away the mechanism.
The upper press-fitting mechanism comprises an upper pressing oil cylinder, an upper pressing pressure head is connected below the upper pressing oil cylinder, the upper pressing pressure head is connected with a bearing outer ring pressure head through a connecting mechanism and is connected with a stand column, and the bearing outer ring pressure head is fixed on the bearing outer ring pressure head and is connected with the front end part of the stand column.
The weighing device is characterized in that a weighing mechanism is arranged at the connecting mechanism, the weighing mechanism comprises a weighing sensor, a weighing sensor upper connecting plate, a weighing sensor lower connecting plate, a weighing sensor vertical plate, a weighing sensor upper connecting plate guide pillar and a weighing sensor upper connecting plate guide sleeve, a connecting upright post on a bearing outer ring pressure head is connected with the weighing sensor lower connecting plate, the weighing sensor is fixed on the weighing sensor lower connecting plate, the weighing sensor upper connecting plate and the weighing sensor lower connecting plate are connected with the weighing sensor vertical plate, the weighing sensor upper connecting plate guide pillar is fixed on the weighing sensor upper connecting plate, and the weighing sensor upper connecting plate guide sleeve is fixed on the equipment rack.
The lower pressing mechanism comprises a lower pressing oil cylinder, and a lower pressing pressure head is connected above the lower pressing oil cylinder.
The lifting positioning mechanism comprises a lifting cylinder, a lifting cylinder seat, a lifting side pushing seat, a lifting cylinder front support and a lifting inner guide post fixing plate, wherein the lifting inner guide post fixing plate is connected with the top lifting plate, the lifting cylinder is connected with the lifting cylinder seat, one end of the lifting cylinder front support is connected with the lifting cylinder, the other end of the lifting cylinder front support is connected with the top lifting plate,
the lifting positioning mechanism further comprises a lifting inner guide pillar and a lifting inner guide sleeve, the lifting inner guide pillar is fixed on the lifting inner guide pillar fixing plate, the lifting inner guide sleeve is fixed on the lifting side pushing seat, when the lifting cylinder acts, the top lifting plate moves up and down under the guiding of the lifting inner guide pillar and the lifting inner guide sleeve, and a side pushing sliding plate guiding pressing block is fixed on the lifting side pushing seat.
The side pushing mechanism comprises a side pushing cylinder, a side pushing cylinder seat, a side pushing cylinder front head support and a side pushing sliding plate, the side pushing cylinder is fixed on the side pushing cylinder seat, one end of the side pushing cylinder front head support is connected with a cylinder piston rod, the other end of the side pushing cylinder front head support is connected with the side pushing sliding plate, and the side pushing sliding plate moves in a side pushing sliding plate guiding pressing block, and is limited and guided during movement.
The side pushing mechanism is also connected with a stopping mechanism, and the stopping mechanism comprises a stopping cylinder and a stopping cylinder seat.
The equipment frame comprises an upper press seat, a lower press seat, upper and lower press seat stand columns, stand column locking nuts and a foundation plate, the upper press seat and the lower press seat are formed by welding, an upper pressing oil cylinder is fixed on the upper press seat, a lower pressing oil cylinder is fixed on the lower press seat, the upper press seat and the lower press seat are connected through the upper and lower press seat stand columns and locked by the stand column locking nuts, and the foundation plate is fixed at the bottom of the lower press seat through screws.
The linear displacement sensor and the linear displacement sensor seat are arranged above the equipment rack, the linear displacement sensor is fixed on the linear displacement sensor seat, and the linear displacement sensor seat is fixed on the upper seat of the press.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a hub bearing outer lane pressure equipment break traditional manual mode of placing tapered roller bearing outer lane, practice thrift the cost of labor, improved work efficiency; the equipment is matched with a robot for use, so that the production automation is realized; the upper compaction and the lower compaction can be realized on the equipment, and the hub does not need to be turned over; the accurate measurement of compaction is realized through the weighing sensor, and the problem that the press fitting is not in place is solved; the device is used together with a circulating speed multiplying chain and a blocking cylinder, so that the precise positioning is improved, and the realization of automation and intellectualization is facilitated; the problems in the prior art are solved.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
fig. 2 is a side view of an embodiment of the present invention;
fig. 3 is a top view of an embodiment of the present invention;
fig. 4 is a perspective view of an embodiment of the present invention;
fig. 5 is a front view of the lifting and positioning mechanism in the embodiment of the present invention;
fig. 6 is a top view of the lifting and positioning mechanism in an embodiment of the present invention;
fig. 7 is a perspective view of the lifting and positioning mechanism in the embodiment of the present invention;
in the figure: 1. a press upper seat; 2. a lower seat of the press; 3. the upright columns of the upper and lower seats of the press; 4. a column locking nut; 5. an upper pressing oil cylinder; 6. pressing the oil cylinder downwards; 7. a foundation slab; 8. a bearing outer ring pressure head; 9. the bearing outer ring pressure head is connected with an upright post; 10. a lower connecting plate of the weighing sensor; 11. a weighing sensor vertical plate; 12. the weighing sensor is connected with a connecting plate; 13. a weighing sensor; 14. an upper pressing head; 15. a lower pressing head; 16. the weighing sensor is connected with a plate guide post; 17. the weighing sensor is connected with a plate guide sleeve; 18. a linear displacement sensor; 19. a linear displacement sensor seat; 20. a top lifting plate; 21. lifting the inner guide pillar fixing plate; 22. lifting the inner guide pillar; 23. lifting the inner guide sleeve; 24. a lifting cylinder; 25. lifting the cylinder block; 26. lifting a front support of the cylinder; 27. lifting the side push seat; 28. a lateral pushing cylinder; 29. laterally pushing the cylinder block; 30. laterally pushing a cylinder front support; 31. laterally pushing the sliding plate; 32. a lateral pushing sliding plate guides a pressing block; 33. a gear-stop cylinder; 34. and stopping the cylinder seat.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example 1:
as shown in fig. 1-7, a wheel hub bearing outer lane pressure equipment, including the equipment rack, be equipped with last pressure equipment mechanism and the pressure equipment mechanism down that the longitudinal symmetry set up in the equipment rack, go up pressure equipment mechanism and be equipped with respectively on the pressure equipment mechanism down and compress tightly pressure head 14 and compress tightly head 15 with pushing down, the below that compresses tightly pressure head 14 on is connected with bearing outer lane pressure head 8, the top of pressure equipment mechanism is equipped with down and lifts positioning mechanism, the top that lifts positioning mechanism is equipped with top lifting plate 20, be equipped with on the top lifting plate 20 and be used for compressing tightly the space that pressure head 15 wore out down, the side that lifts positioning mechanism is equipped with the side thrust mechanism.
Go up pressure equipment mechanism and include last compressing cylinder 5, go up compressing cylinder 5's below and connect and compress tightly pressure head 14, on compress tightly pressure head 14 and be connected with the connection stand 9 on the bearing outer lane pressure head through coupling mechanism, bearing outer lane pressure head 8 is fixed and is connected the preceding tip of stand 9 on the bearing outer lane pressure head.
The weighing mechanism is arranged at the position of the connecting mechanism and comprises a weighing sensor 13, a weighing sensor upper connecting plate 12, a weighing sensor lower connecting plate 10, a weighing sensor vertical plate 11, a weighing sensor upper connecting plate guide post 16 and a weighing sensor upper connecting plate guide sleeve 17, a connecting upright post 9 on a pressure head of a bearing outer ring is connected with the weighing sensor lower connecting plate 10, the weighing sensor 13 is fixed on the weighing sensor lower connecting plate 10, the weighing sensor upper connecting plate 12 and the weighing sensor lower connecting plate 10 are connected with the weighing sensor vertical plate 11, the weighing sensor upper connecting plate guide post 16 is fixed on the weighing sensor upper connecting plate 12, and the weighing sensor upper connecting plate guide sleeve 17 is fixed on the equipment rack.
The lower pressing mechanism comprises a lower pressing oil cylinder 6, and a lower pressing pressure head 15 is connected above the lower pressing oil cylinder 6.
The lifting positioning mechanism comprises a lifting cylinder 24, a lifting cylinder seat 25, a lifting side push seat 27, a lifting cylinder front support 26 and a lifting inner guide post fixing plate 21, wherein the lifting inner guide post fixing plate 21 is connected with the top lifting plate 20, the lifting cylinder 24 is connected with the lifting cylinder seat 25, one end of the lifting cylinder front support 26 is connected with the lifting cylinder 24, the other end is connected with the top lifting plate 20,
the lifting positioning mechanism further comprises a lifting inner guide pillar 22 and a lifting inner guide sleeve 23, the lifting inner guide pillar 22 is fixed on the lifting inner guide pillar fixing plate 21, the lifting inner guide sleeve 23 is fixed on the lifting side pushing seat 27, when the lifting cylinder 24 acts, the top lifting plate 20 moves up and down under the guiding of the lifting inner guide pillar 22 and the lifting inner guide sleeve 23, and a side pushing sliding plate guiding pressing block 32 is fixed on the lifting side pushing seat 27.
The side pushing mechanism comprises a side pushing cylinder 28, a side pushing cylinder seat 29, a side pushing cylinder front head support 30 and a side pushing sliding plate 31, the side pushing cylinder 28 is fixed on the side pushing cylinder seat 29, one end of the side pushing cylinder front head support 30 is connected with a cylinder piston rod, the other end of the side pushing cylinder front head support is connected with the side pushing sliding plate 31, and the side pushing sliding plate 31 moves in a side pushing sliding plate guide pressing block 32 and is limited and guided during movement.
The side pushing mechanism is also connected with a blocking mechanism, and the blocking mechanism comprises a blocking cylinder 33 and a blocking cylinder seat 34.
The equipment frame comprises a press upper seat 1, a press lower seat 2, press upper and lower seat stand columns 3, stand column locking nuts 4 and a foundation plate 7, the press upper seat 1 and the press lower seat 2 are formed by welding, an upper pressing oil cylinder 5 is fixed on the press upper seat 1, a lower pressing oil cylinder 6 is fixed on the press lower seat 2, the press upper seat 1 and the press lower seat 2 are connected through the press upper and lower seat stand columns 3 and are locked by the stand column locking nuts 4, and the foundation plate 7 is fixed at the bottom of the press lower seat 2 through screws.
A linear displacement sensor 18 and a linear displacement sensor seat 19 are arranged above the equipment rack, the linear displacement sensor 18 is fixed on the linear displacement sensor seat 19, and the linear displacement sensor seat 19 is fixed on the upper seat 1 of the press.
The bearing outer ring pressure head 8, the connecting upright post 9 on the bearing outer ring pressure head, the lower connecting plate 10 of the weighing sensor, the vertical plate 11 of the weighing sensor, the upper connecting plate 12 of the weighing sensor, the weighing sensor 13, the upper connecting plate guide post 16 of the weighing sensor and the like are assembled together, the upper hydraulic cylinder pressure head 14 and the upper connecting plate 12 of the weighing sensor are sleeved together in a clearance way, the whole mechanism is hung on the upper hydraulic cylinder pressure head 14 due to dead weight and guided by the upper connecting plate guide post 16 of the weighing sensor, a clearance is reserved between the upper hydraulic cylinder pressure head 14 and the weighing sensor 13, and the clearance is about 6 mm.
The working process of the embodiment is as follows:
the tray loaded with the wheel hub workpieces moves on the double-speed chain, the stop cylinder 33 is used for positioning the tray, the wheel hub workpieces are positioned at the equipment, the lower pressing oil cylinder 6 acts, the piston rod extends out, the feeding robot acts at the moment, the outer ring of the tapered roller bearing is grabbed, the outer ring of the bearing is placed on the pressure head 8 of the outer ring of the bearing, the outer ring of the tapered roller bearing is grabbed again, the outer ring of the bearing is placed on the pressure head 15 of the lower hydraulic cylinder, and after the action is completed, the piston rod of the lower pressing oil cylinder 6 retreats to the right position.
The lifting cylinder 24 acts, a piston rod of the cylinder extends out, the top lifting plate 20, the lifting inner guide pillar fixing plate 21, the lifting inner guide pillar 22, the hub workpiece and a positioning sleeve for positioning the hub workpiece move upwards together, when the lifting cylinder 24 is lifted in place, the side pushing cylinder 28 acts, the piston rod extends out, the side pushing sliding plate 31 moves forwards, after the lifting cylinder 24 is lifted in place, the lifting cylinder 24 resets and falls down, the hub workpiece and the positioning sleeve for positioning the hub workpiece fall on the side pushing sliding plate 31 along with the top lifting plate 20, and the side pushing sliding plate 31 plays a role of a cushion block.
And a piston rod of the upper pressing oil cylinder 5 extends out, the bearing outer ring of the bearing outer ring pressing head 8 is pressed into the hub, and after the action is finished, the upper pressing oil cylinder 5 retreats for a certain distance.
The piston rod of the lower pressing oil cylinder 6 extends out, the lower hydraulic cylinder pressure head 15 for placing the outer ring of the bearing can jack up the wheel hub for a certain distance, in the ascending process, the wheel hub can stop moving forward due to the blocking of the upper pressing oil cylinder 5, the outer ring of the bearing at the moment can stop moving forward, the pressure head 8 of the outer ring of the bearing at the moment can stop moving forward, the upright post 9 is connected onto the pressure head of the outer ring of the bearing, the lower connecting plate 10 of the weighing sensor, the vertical plate 11 of the weighing sensor, the upper connecting plate 12 of the weighing sensor, the weighing sensor 13, the guide post 16 of the upper connecting plate of the weighing sensor and the like can ascend together for about 6mm, the weighing sensor 13 contacts the upper hydraulic cylinder pressure head 14 and continues to ascend, and the outer ring of the bearing is pressed into the wheel hub. During the pressing and pressurizing process, the weighing sensor 13 displays the weighing value on the touch screen.
The upper pressing oil cylinder 5 and the lower pressing oil cylinder 6 are reset, the lifting air cylinder 24 is lifted, the side pushing air cylinder 28 is reset, the side pushing sliding plate 31 retreats to the position, the lifting air cylinder 24 is reset, and the action is finished.
The stop cylinder 33 is reset, and the tray loaded with the hub workpiece continues to move on the speed multiplying chain. The automatic grabbing and feeding and automatic press fitting of the outer ring of the tapered roller bearing are realized.
By adopting the hub bearing outer ring press-fitting equipment described in the embodiment of the invention in combination with the attached drawings, the traditional mode of manually placing the tapered roller bearing outer ring is broken, the labor cost is saved, and the working efficiency is improved; the device is matched with a robot for use, so that the production automation is realized; the upper compaction and the lower compaction can be realized on the equipment, and the hub does not need to be turned over; the accurate measurement of compaction is realized through the weighing sensor, and the problem that the press fitting is not in place is solved; the device is used together with a circulating speed multiplying chain and a blocking cylinder, so that the precise positioning is improved, and the realization of automation and intellectualization is facilitated; the problems in the prior art are solved. The present invention is not limited to the embodiments described, but rather, variations, modifications, substitutions and alterations from the embodiments described herein are possible without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a hub bearing outer lane pressure equipment which characterized in that: including the equipment frame, the equipment frame on be equipped with the last pressure equipment mechanism and the pressure equipment mechanism down that the longitudinal symmetry set up, go up pressure equipment mechanism and be equipped with respectively on the pressure equipment mechanism down and compress tightly pressure head (14) and compress tightly pressure head (15), the below that compresses tightly pressure head (14) on is connected with bearing outer lane pressure head (8), the top of pressure equipment mechanism is equipped with down and lifts positioning mechanism, the top of lifting positioning mechanism is equipped with top board (20) of lifting, be equipped with on board (20) of lifting at the top and be used for compressing tightly the space that pressure head (15) wore out down, the side of lifting positioning mechanism is equipped with the side thrust mechanism.
2. A hub bearing outer ring press fitting apparatus according to claim 1, wherein: go up pressure equipment mechanism include last compressing cylinder (5), go up compressing cylinder's (5) below and connect and compress tightly pressure head (14), on compress tightly pressure head (14) and be connected with on the bearing outer lane pressure head through coupling mechanism and connect stand (9), bearing outer lane pressure head (8) are fixed and are connected stand (9) preceding tip on the bearing outer lane pressure head.
3. A hub bearing outer ring press fitting apparatus according to claim 2, wherein: the weighing device is characterized in that the weighing mechanism is arranged at the connecting mechanism, the weighing mechanism comprises a weighing sensor (13), a weighing sensor upper connecting plate (12), a weighing sensor lower connecting plate (10), a weighing sensor vertical plate (11), a weighing sensor upper connecting plate guide post (16) and a weighing sensor upper connecting plate guide sleeve (17), a connecting upright post (9) on a bearing outer ring pressure head is connected with the weighing sensor lower connecting plate (10), the weighing sensor (13) is fixed on the weighing sensor lower connecting plate (10), the weighing sensor upper connecting plate (12) and the weighing sensor lower connecting plate (10) are connected with the weighing sensor vertical plate (11), the weighing sensor upper connecting plate guide post (16) is fixed on the weighing sensor upper connecting plate (12), and the weighing sensor upper connecting plate guide sleeve (17) is fixed on the equipment rack.
4. A hub bearing outer ring press fitting apparatus according to claim 1, wherein: the lower press-fitting mechanism comprises a lower pressing oil cylinder (6), and a lower pressing pressure head (15) is connected above the lower pressing oil cylinder (6).
5. The hub bearing outer ring press-fitting apparatus according to claim 1, wherein: the lifting positioning mechanism comprises a lifting cylinder (24), a lifting cylinder seat (25), a lifting side push seat (27), a lifting cylinder front support (26) and a lifting inner guide pillar fixing plate (21), wherein the lifting inner guide pillar fixing plate (21) is connected with a top lifting plate (20), the lifting cylinder (24) is connected with the lifting cylinder seat (25), one end of the lifting cylinder front support (26) is connected with the lifting cylinder (24), and the other end of the lifting cylinder front support is connected with the top lifting plate (20).
6. A hub bearing outer ring press fitting apparatus according to claim 5, wherein: the lifting positioning mechanism further comprises a lifting inner guide pillar (22) and a lifting inner guide sleeve (23), the lifting inner guide pillar (22) is fixed on a lifting inner guide pillar fixing plate (21), the lifting inner guide sleeve (23) is fixed on a lifting side pushing seat (27), when a lifting cylinder (24) acts, a top lifting plate (20) moves up and down under the guiding of the lifting inner guide pillar (22) and the lifting inner guide sleeve (23), and a side pushing slide plate guiding pressing block (32) is fixed on the lifting side pushing seat (27).
7. A hub bearing outer ring press fitting apparatus according to claim 1, wherein: the side-push mechanism comprises a side-push cylinder (28), a side-push cylinder seat (29), a side-push cylinder front head support (30) and a side-push sliding plate (31), the side-push cylinder (28) is fixed on the side-push cylinder seat (29), one end of the side-push cylinder front head support (30) is connected with a cylinder piston rod, the other end of the side-push cylinder front head support is connected with the side-push sliding plate (31), and the side-push sliding plate (31) moves in a side-push sliding plate guide pressing block (32) and is limited and guided during movement.
8. The hub bearing outer ring press-fitting apparatus according to claim 1, wherein: the side pushing mechanism is also connected with a stopping mechanism, and the stopping mechanism comprises a stopping cylinder (33) and a stopping cylinder seat (34).
9. A hub bearing outer ring press fitting apparatus according to claim 1, wherein: the equipment frame include press upper bracket (1), press lower bracket (2), press upper and lower seat stand (3), stand lock nut (4) and lower margin backing plate (7), press upper bracket (1) and press lower bracket (2) welding process form, go up clamping cylinder (5) and fix on press upper bracket (1), lower clamping cylinder (6) are fixed on press lower bracket (2), press upper bracket (1) and press lower bracket (2) are connected through press upper and lower seat stand (3) to lock with stand lock nut (4), lower margin backing plate (7) are fixed in press lower bracket (2) bottom through the screw.
10. The hub bearing outer ring press-fitting apparatus according to claim 9, wherein: a linear displacement sensor (18) and a linear displacement sensor seat (19) are arranged above the equipment rack, the linear displacement sensor (18) is fixed on the linear displacement sensor seat (19), and the linear displacement sensor seat (19) is fixed on the upper seat (1) of the press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220768435.0U CN217142982U (en) | 2022-03-31 | 2022-03-31 | Hub bearing outer ring press-fitting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220768435.0U CN217142982U (en) | 2022-03-31 | 2022-03-31 | Hub bearing outer ring press-fitting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217142982U true CN217142982U (en) | 2022-08-09 |
Family
ID=82697603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220768435.0U Active CN217142982U (en) | 2022-03-31 | 2022-03-31 | Hub bearing outer ring press-fitting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217142982U (en) |
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2022
- 2022-03-31 CN CN202220768435.0U patent/CN217142982U/en active Active
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