Riveting device for end cover and bearing
By introducing adaptive adjustment of the gap between floating joints and ball heads into the end cap and Peilin riveting device, the problem of uneven force under the rivet point of Peilin is solved, ensuring the uniform force under the Peilin and reducing the motor noise.
Patent Information
- Application Number
- CN202421991922.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-16
AI Technical Summary
In the prior art, during the riveting process between the end cap and the rivet, the rivet points are unevenly subjected to stress, resulting in damage to the steel ball and the outer ring, which in turn causes the motor to have a strange sound during operation.
The prototypical support seat and downward assembly are adopted, including a linear reciprocating device, a floating joint and a pressing block. Adaptive adjustment is achieved through the gap between the ball head of the floating joint and the pressing block to ensure that the force is uniform in each rivet point.
The force of each rivet point in Peilin is uniform, avoiding damage to the outer ring of Peilin and reducing the abnormal sound during motor operation.
Smart Images
Figure CN223160421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor assembly equipment, in particular to a riveting device for an end cover and a bearing. Background Art
[0002] In order to ensure that the bearing can be fixed on the end cover of the motor, riveting is usually used for assembly. Since the flatness of the plane where some end covers are assembled with bearings is poor, when the riveting device applies force vertically towards the bearing, it is easy to cause uneven force on each riveting point of the bearing, resulting in individual positions on the outer ring of the bearing receiving a large riveting force, causing damage to the steel balls and the outer ring, and further causing abnormal noise when the motor equipped with such accessories operates. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is: to provide a riveting device for an end cover and a bearing, which can ensure uniform force on each riveting point of the bearing.
[0004] In order to solve the above technical problem, the technical solution adopted by the utility model is: a riveting device for an end cover and a bearing, comprising a profiling support seat and a pressing-down assembly; a bearing positioning column is arranged on the profiling support seat;
[0005] The pressing-down assembly includes a linear reciprocating device, a floating joint and a pressing block; the moving end of the linear reciprocating device can move along the axial direction of the bearing positioning column, the floating joint is connected to the moving end of the linear reciprocating device, the floating joint is connected to the pressing block, the floating joint has a spherical head, and there is a gap between the spherical surface of the spherical head and the pressing block.
[0006] Further, there is a gap of 0.4 mm to 0.6 mm between the spherical surface of the spherical head and the pressing block.
[0007] Further, the bearing positioning column is slidably arranged on the profiling support seat along its own axis direction, a first spring is arranged on the profiling support seat, and one end of the first spring abuts against the end of the bearing positioning column far from the pressing-down assembly;
[0008] One end of the pressing block facing the profiling support seat is provided with an ejector rod, the ejector rod is coaxial with the bearing positioning column, and the diameter of the ejector rod is smaller than the diameter of the bearing positioning column.
[0009] Further, the ejector rod is slidably arranged on the pressing block along its own axis direction, a second spring is arranged inside the pressing block, and one end of the second spring abuts against the end of the ejector rod far from the profiling support seat.
[0010] Further, a positioning groove is arranged at one end of the bearing positioning column facing the pressing-down assembly, and one end of the ejector rod facing the profiling support seat can be inserted into the positioning groove.
[0011] Further, the groove depth of the positioning groove is 10 mm to 15 mm.
[0012] Further, the pressing block includes a housing and a riveting jig; the housing is connected to the floating joint, the riveting jig is arranged in the housing, and the ejector rod is arranged on the riveting jig.
[0013] Further, the pressing block further includes a third spring arranged in the housing. The riveting jig is slidably arranged on the housing along the axis direction of the ejector rod, and one end of the third spring abuts against one end of the riveting jig far from the profiling support seat.
[0014] Further, the above-mentioned riveting device for an end cap and a bearing also includes a positioning base. A positioning post is arranged on the positioning base, and a positioning hole adapted to the positioning post is arranged on the profiling support seat.
[0015] Further, a pressure sensor is arranged between the movable end of the linear reciprocating device and the floating joint.
[0016] The beneficial effect of the present utility model lies in that: different from the prior art, a floating joint is added between the linear reciprocating device and the pressing block. After the pressing block contacts the outer ring of the bearing, the floating joint will move adaptively according to the inclination of the end cap, and there is a gap between the ball head and the pressing block, which can enable the pressing block to have enough space for adaptive adjustment, and finally the corresponding positions of the pressing block and the ball head come into contact; finally, the linear reciprocating device can drive the pressing block to apply substantially the same riveting pressure to each riveting point on the outer ring of the bearing through the ball head. Description of the Drawings
[0017] Figure 1 is a partial structural schematic diagram of a riveting device for an end cap and a bearing proposed by the present utility model;
[0018] Figure 2 is Figure 1 an enlarged view of part A of a riveting device for an end cap and a bearing;
[0019] Figure 3 is a structural schematic diagram of a profiling support seat of a riveting device for an end cap and a bearing proposed by the present utility model;
[0020] Label Description:
[0021] 1. Profiling support seat; 11. Bearing positioning post; 111. Positioning groove;
[0022] 12. First spring; 13. Positioning hole;
[0023] 2. Pressing-down assembly; 21. Linear reciprocating device; 22. Floating joint; 221. Ball head;
[0024] 23. Pressing block; 231. Housing; 232. Riveting fixture; 233. Third spring;
[0025] 3. Ejector rod; 4. Second spring;
[0026] 5. Positioning base; 51. Positioning post;
[0027] 6. End cover; 7. Bearing. Detailed implementation mode
[0028] To illustrate the technical content, achieved purpose and effects of the present utility model in detail, the following is described in conjunction with the implementation modes and with reference to the drawings.
[0029] Please refer to Figure 1 and Figure 2 As shown, a riveting device for an end cover and a bearing of the present utility model includes a profiling support base 1 and a pressing-down assembly 2; a bearing positioning post 11 is provided on the profiling support base 1;
[0030] The pressing-down assembly 2 includes a linear reciprocating device 21, a floating joint 22 and a pressing block 23; the movable end of the linear reciprocating device 21 can move along the axial direction of the bearing positioning post 11, the floating joint 22 is connected to the movable end of the linear reciprocating device 21, the floating joint 22 is connected to the pressing block 23, the floating joint 22 has a spherical head 221, and a gap is left between the spherical surface of the spherical head 221 and the pressing block 23. Preferably, a gap of 0.4 mm to 0.6 mm is left between the spherical surface of the spherical head 221 and the pressing block 23. Most preferably, a gap of 0.5 mm is left between the spherical surface of the spherical head 221 and the pressing block 23.
[0031] Working principle: The staff positions and places the end cover 6 through the profiling support base 1, and then positions and places the bearing 7 on the end cover 6 through the bearing positioning post 11. Then, the staff operates the linear reciprocating device 21 to drive the pressing block 23 to contact the outer ring of the bearing 7. The floating joint 22 will move adaptively according to the inclination of the end cover 6, and a gap is left between the spherical head 221 and the pressing block 23, which can enable the pressing block 23 to have enough space for adaptive adjustment. Finally, the corresponding positions of the pressing block 23 and the spherical head 221 are in contact; finally, the linear reciprocating device 21 drives the pressing block 23 through the spherical head 221 to apply substantially the same riveting pressure to each riveting point on the outer ring of the bearing 7 to complete the riveting of the bearing 7 on the end cover 6.
[0032] Please refer to Figure 1 and Figure 2As shown, further, the bearing positioning post 11 is slidably arranged on the profiling support base 1 along its own axis direction. A first spring 12 is arranged on the profiling support base 1, and one end of the first spring 12 abuts against the end of the bearing positioning post 11 away from the pressing component 2.
[0033] One end of the pressing block 23 facing the profiling support base 1 is provided with an ejector rod 3. The ejector rod 3 is coaxial with the bearing positioning post 11, and the diameter of the ejector rod 3 is smaller than the diameter of the bearing positioning post 11.
[0034] As can be seen from the above description, when the pressing block 23 presses on the outer ring of the bearing 7, the ejector rod 3 can push the bearing positioning post 11 out of the inner ring of the bearing 7 to prevent the inner ring of the bearing 7 from being damaged by the external force exerted on it by the bearing positioning post 11 during the riveting process. After the pressing component 2 is reset, the bearing positioning post 11 can be reset by using the first spring 12.
[0035] Please refer to Figure 1 and Figure 2 As shown, further, the ejector rod 3 is slidably arranged on the pressing block 23 along its own axis direction. A second spring 4 is arranged in the pressing block 23, and one end of the second spring 4 abuts against the end of the ejector rod 3 away from the profiling support base 1. It should be noted that the elastic coefficient of the second spring 4 is greater than that of the first spring 12.
[0036] As can be seen from the above description, the second spring 4 and the first spring 12 can buffer the force when the ejector rod 3 contacts the bearing positioning post 11.
[0037] Please refer to Figure 2 As shown, further, a positioning groove 111 is arranged at one end of the bearing positioning post 11 facing the pressing component 2, and one end of the ejector rod 3 facing the profiling support base 1 can be inserted into the positioning groove 111. Preferably, the groove depth of the positioning groove 111 is 10 mm to 15 mm.
[0038] As can be seen from the above description, inserting the ejector rod 3 into the positioning groove 111 can ensure the stability of the ejector rod 3 pushing the bearing positioning post 11.
[0039] Please refer to Figure 1 As shown, further, the pressing block 23 includes a housing 231 and a riveting fixture 232; the housing 231 is connected to the floating joint 22, the riveting fixture 232 is arranged on the housing 231, and the ejector rod 3 is arranged on the riveting fixture 232.
[0040] Please refer to Figure 1As shown, further, the pressing block 23 further includes a third spring 233 disposed inside the housing 231. The riveting jig 232 is slidably disposed on the housing 231 along the axial direction of the ejector rod 3. One end of the third spring 233 abuts against the end of the riveting jig 232 away from the profiling support seat 1.
[0041] As can be seen from the above description, the third spring 233 can buffer the force when the riveting jig 232 contacts the outer ring of the bearing 7 to protect the bearing 7.
[0042] Please refer to Figure 2 and Figure 3 As shown, further, the riveting device for an end cap and a bearing further includes a positioning base 5. A positioning post 51 is disposed on the positioning base 5. A positioning hole 13 adapted to the positioning post 51 is disposed on the profiling support seat 1.
[0043] As can be seen from the above description, by using the cooperation of the positioning post 51 and the positioning hole 13, the corresponding profiling support seat 1 can be quickly replaced according to the shape of the end cap 6.
[0044] Further, a pressure sensor (not shown in the figure) is disposed between the movable end of the linear reciprocating device 21 and the floating joint 22.
[0045] As can be seen from the above description, the pressure sensor can be used to detect in real time the riveting pressure applied by the pressing assembly 2 to the outer ring of the bearing 7, avoiding overpressure.
[0046] Embodiment 1
[0047] A riveting device for an end cap and a bearing, please refer to Figures 1 to 3As shown in the figure, it includes a profiling support base 1, a downward pressing assembly 2, and a positioning base 5; a bearing positioning post 11 is provided on the profiling support base 1; the downward pressing assembly 2 includes a linear reciprocating device 21, a floating joint 22, and a pressing block 23; the movable end of the linear reciprocating device 21 can move along the axial direction of the bearing positioning post 11, the floating joint 22 is connected to the movable end of the linear reciprocating device 21, the floating joint 22 is connected to the pressing block 23, the floating joint 22 has a spherical head 221, and there is a gap between the spherical surface of the spherical head 221 and the pressing block 23. The bearing positioning post 11 is slidably arranged on the profiling support base 1 along its own axial direction, a first spring 12 is provided on the profiling support base 1, and one end of the first spring 12 abuts against the end of the bearing positioning post 11 far from the downward pressing assembly 2; one end of the pressing block 23 facing the profiling support base 1 is provided with an ejector rod 3, the ejector rod 3 is coaxial with the bearing positioning post 11, and the diameter of the ejector rod 3 is smaller than the diameter of the bearing positioning post 11. The ejector rod 3 is slidably arranged on the pressing block 23 along its own axial direction, a second spring 4 is arranged in the pressing block 23, and one end of the second spring 4 abuts against the end of the ejector rod 3 far from the profiling support base 1. One end of the bearing positioning post 11 facing the downward pressing assembly 2 is provided with a positioning groove 111, and one end of the ejector rod 3 facing the profiling support base 1 can be inserted into the positioning groove 111. The groove depth of the positioning groove 111 is 15 mm. A positioning post 51 is provided on the positioning base 5, and a positioning hole 13 adapted to the positioning post 51 is provided on the profiling support base 1. A pressure sensor (not shown in the figure) is provided between the movable end of the linear reciprocating device 21 and the floating joint 22.
[0048] Working principle: The staff positions and places the end cover 6 through the profiling support base 1, and then positions and places the bearing 7 on the end cover 6 through the bearing positioning post 11. Then, the linear reciprocating device 21 is operated to drive the pressing block 23 to contact the outer ring of the bearing 7. The floating joint 22 will have an adaptive movement according to the inclination of the end cover 6, and there is a gap between the spherical head 221 and the pressing block 23, which can enable the pressing block 23 to have enough space for adaptive adjustment. Finally, the corresponding positions of the pressing block 23 and the spherical head 221 are in contact; finally, the linear reciprocating device 21 drives the pressing block 23 through the spherical head 221 to apply substantially the same riveting pressure to each riveting point on the outer ring of the bearing 7 to complete the riveting of the bearing 7 on the end cover 6.
[0049] Embodiment 2
[0050] In this embodiment, on the basis of Embodiment 1, the structure of the pressing block 23 is further defined as follows:
[0051] Please refer to Figure 1As shown, the pressing block 23 includes a housing 231, a riveting fixture 232, and a third spring 233 disposed within the housing 231; the housing 231 is connected to the floating joint 22, the riveting fixture 232 is disposed within the housing 231, and the ejector rod 3 is disposed on the riveting fixture 232; the riveting fixture 232 is slidably disposed on the housing 231 along the axial direction of the ejector rod 3, and one end of the third spring 233 abuts against the end of the riveting fixture 232 remote from the profiling support base 1.
[0052] The above are only embodiments of the present invention and do not thereby limit the patent scope of the present invention. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A riveting device for an end cap and a bearing, characterized in that: It includes a profiling support base and a pressing-down component; a bearing positioning post is arranged on the profiling support base; The pressing-down component includes a linear reciprocating device, a floating joint and a pressing block; the movable end of the linear reciprocating device can move along the axial direction of the bearing positioning post, the floating joint is connected to the movable end of the linear reciprocating device, the floating joint is connected to the pressing block, the floating joint has a spherical head, and there is a gap between the spherical surface of the spherical head and the pressing block.
2. The riveting device for the end cover and the bearing according to claim 1, characterized in that: There is a gap of 0.4 mm to 0.6 mm between the spherical surface of the spherical head and the pressing block.
3. The riveting device for the end cap and the bearing according to claim 1, characterized in that: The bearing positioning post is slidably arranged on the profiling support base along its own axis direction, a first spring is arranged on the profiling support base, and one end of the first spring abuts against the end of the bearing positioning post away from the pressing-down component; One end of the pressing block facing the profiling support base is provided with an ejector rod, the ejector rod is coaxial with the bearing positioning post, and the diameter of the ejector rod is smaller than that of the bearing positioning post.
4. The riveting device for the end cap and the bearing according to claim 3, characterized in that: The ejector rod is slidably arranged on the pressing block along its own axis direction, a second spring is arranged in the pressing block, and one end of the second spring abuts against the end of the ejector rod away from the profiling support base.
5. The riveting device for the end cover and the bearing according to claim 3 or 4, characterized in that: One end of the bearing positioning post facing the pressing-down component is provided with a positioning groove, and one end of the ejector rod facing the profiling support base can be inserted into the positioning groove.
6. The riveting device for the end cover and the bearing according to claim 5, characterized in that: The depth of the positioning groove is 10 mm to 15 mm.
7. The riveting device for the end cap and the bearing according to claim 3 or 4, characterized in that: The pressing block includes a housing and a riveting fixture; the housing is connected to the floating joint, the riveting fixture is arranged on the housing, and the ejector rod is arranged on the riveting fixture.
8. The riveting device for the end cover and the bearing according to claim 7, characterized in that: The pressing block further includes a third spring arranged in the housing, the riveting fixture is slidably arranged on the housing along the axial direction of the ejector rod, and one end of the third spring abuts against the end of the riveting fixture away from the profiling support base.
9. The riveting device for the end cover and the bearing according to claim 1, characterized in that: It further includes a positioning base, a positioning post is arranged on the positioning base, and a positioning hole adapted to the positioning post is arranged on the profiling support base.
10. The riveting device for the end cap and the bearing according to claim 1, wherein: A pressure sensor is arranged between the movable end of the linear reciprocating device and the floating joint.