Bearing spotting device

Abstract

The application discloses a bearing punching device, which comprises a body, the outer diameter of the lower end surface of which is less than or equal to the outer diameter of the outer ring of the bearing, the body is provided with a through hole, and the lower end of the through hole is in a tapered structure; a convex column is arranged at the upper end of the body; a positioning column is arranged at the lower end of the body; a plurality of impact rods are arranged, the number of the impact rods is the same as the number of the through holes, the impact rods are slidably arranged in the corresponding through holes, the upper end of the impact rod penetrates the through hole, the lower end of the impact rod is in a pointed structure, and the pointed structure of the impact rod can penetrate the lower end of the through hole under the action of gravity; an impact sleeve is arranged in the middle portion of the body and is slidably arranged on the convex column through a mounting hole, the impact sleeve is arranged above the impact rods and is in contact with the impact rods, and the impact sleeve can drive the impact rods to impact downward by knocking the impact sleeve. The application can ensure that the pointed structures of the impact rods are in contact with the end surface of the outer ring of the bearing before impact, and the punching effect is effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of machining, and more specifically to a bearing punching device. Background Technology

[0002] After the aircraft bearing is installed, it is necessary to punch points on the outer ring of the bearing (there are multiple punch point positions, and each punch point position is evenly distributed around the center line of the bearing). The purpose of punching points is to deform the inner diameter of the bearing housing hole at both ends near the bearing, so as to prevent the bearing from coming out of the bearing housing hole or causing axial displacement during use.

[0003] The traditional method of punching points involves striking the outer ring end face of the bearing with a hammer and a pointed rod to punch points one by one. This method has low processing efficiency and cannot guarantee that the punching points are evenly distributed. Summary of the Invention

[0004] To address the above-mentioned problems, this invention proposes a bearing punching device.

[0005] The technical solution adopted in this invention is as follows:

[0006] A bearing punching device for punching the end face of the outer ring of a bearing, comprising:

[0007] The body has a circular lower end face, and the outer diameter of the lower end face is less than or equal to the outer diameter of the outer ring of the bearing. The body has at least three through holes evenly distributed around the axis of the body. The axis of the through holes is parallel to the axis of the body. The lower end of the through holes is located on the lower end face of the body. The lower end of the through holes has a tapered structure, and the cross-sectional area of ​​the through holes is smaller the closer they are to the lower end face of the body.

[0008] A protruding post is located at the upper end of the body, and the axis of the protruding post coincides with the axis of the body;

[0009] A positioning post is fixed to the lower end of the main body, the lower end of the positioning post protrudes through the lower end face of the main body, and the axis of the positioning post coincides with the axis of the main body.

[0010] Multiple impact rods are provided, the number of which is the same as the number of through holes. The impact rods are slidably mounted on the corresponding through holes, with the upper end of the impact rod protruding through the through hole and the lower end of the impact rod having a pointed structure. The pointed structure is used for impacting operations. Under its own gravity, the pointed structure of the impact rod can protrude through the lower end of the through hole. The tapered structure of the through hole is used to cooperate with the impact rod to prevent the impact rod from completely detaching from the through hole.

[0011] The impact sleeve has a mounting hole in the middle. The impact sleeve is slidably mounted on the protrusion through the mounting hole. The impact sleeve is located above each impact rod and is in contact with each impact rod. By striking the impact sleeve, each impact rod can be driven to impact downward.

[0012] If each impact rod is fixed, the different installation accuracy of the impact rods will cause the tip structure of each impact rod to be not on the same plane. This will result in some impact points not being hit or some impact points not having sufficient impact depth during use.

[0013] The bearing impactor of this application performs the impacting process as follows: A locating pin is inserted into the inner ring of the bearing; the lower end face of the device body contacts the outer ring face of the bearing, at which point the pointed structures of each impact rod are located within the through hole and are in contact with the end face of the outer ring of the bearing; the impact sleeve is struck, causing each impact rod to impact downwards, thus impacting the outer ring of the bearing. This method ensures that the pointed structures of each impact rod are in contact with the end face of the outer ring of the bearing before impact, effectively guaranteeing the impacting effect.

[0014] The lower end face of the body is circular, and the outer diameter of the lower end face is less than or equal to the outer diameter of the outer ring of the bearing. This design can prevent the body from contacting other parts during operation and affecting the contact with the outer ring end face of the bearing.

[0015] In practical applications, the protruding post is integrally formed with the body or fixed to the body by welding or other methods.

[0016] It should be noted that the bearing punching device of this application requires the bearing to be in a horizontal position when it is working.

[0017] In one embodiment of the present invention, an anti-loosening nut is also included;

[0018] The upper section of the protruding post has external threads;

[0019] The mounting hole includes a small diameter portion at the bottom and a large diameter portion at the top. The outer diameter of the anti-loosening nut is greater than the inner diameter of the small diameter portion and less than or equal to the inner diameter of the large diameter portion.

[0020] The external thread of the protruding post passes through the small diameter portion and extends into the large diameter portion, and is screwed into the anti-loosening nut.

[0021] The impact sleeve will not detach from the protrusion due to the anti-loosening nut; the impact sleeve can only slide on the protrusion.

[0022] In one embodiment of the present invention, the outer side wall of the protruding post has a guide limiting block, the guide limiting block being located below the external thread;

[0023] The smaller diameter portion has a limiting groove that prevents circumferential rotation and cooperates with the guide limiting block.

[0024] The cooperation between the guide limit block and the limit groove prevents the impact sleeve from rotating circumferentially, which ensures that the contact area with the impact rod is the same each time, guaranteeing long-term stable and reliable operation.

[0025] In one embodiment of the present invention, the anti-loosening nut is an internal hexagonal nut.

[0026] In one embodiment of the present invention, the lower end of the body is a truncated cone structure; the outer diameter of the positioning post is the same as the inner diameter of the inner ring of the bearing; the lower end of the positioning post has a chamfer or rounding.

[0027] In one embodiment of the present invention, the through hole includes a circular portion, the tapered structure is a conical portion, and the large-diameter end of the tapered structure is connected to the circular portion.

[0028] In one embodiment of the present invention, a fixing bolt is also included;

[0029] The lower end face of the body has a positioning hole, and the side wall of the body has a threaded hole communicating with the positioning hole;

[0030] The upper end of the positioning pin is inserted into the positioning hole, and the fixing bolt is used to screw into the threaded hole and fix the positioning pin against the positioning hole.

[0031] In one embodiment of the present invention, a handle is fixed to the outer side wall of the body.

[0032] In one embodiment of the present invention, the lower end face of the impact sleeve has a groove, and the impact sleeve further includes a circuit structure, the circuit structure including a sensor switch and an indicator light, the sensor switch having a pressing head protruding from the bottom wall of the groove;

[0033] The upper end of the impact rod extends into the groove. In the initial state, under the gravity of the impact sleeve, the upper end face of the impact rod contacts the bottom wall of the groove, and the pressing head is pressed. At this time, the induction switch is triggered, and the corresponding indicator light is lit.

[0034] When different impact rods have varying degrees of wear (the pointed structure of the impact rod), the impact sleeve may no longer contact the excessively worn impact rod before striking, affecting the striking effect. By incorporating grooves, a sensor switch, and indicator lights, a self-check can be performed before each strike. When all indicator lights are lit, it indicates that the impact rods have similar wear levels. If at least one indicator light is off (this corresponds to a more worn impact rod, preventing the sensor opening from being triggered), an inspection is necessary. If required, the corresponding impact rod should be replaced or ground.

[0035] The beneficial effects of this invention are as follows: The bearing impactor of this application performs impacting as follows: a positioning pin is inserted into the inner ring of the bearing; the lower end face of the main body is brought into contact with the outer ring face of the bearing, at which point the pointed structure of each impact rod is located in the through hole and is in contact with the end face of the outer ring of the bearing; the impact sleeve is struck, causing each impact rod to impact downwards, thus impacting the outer ring of the bearing. This method ensures that the pointed structure of each impact rod is in contact with the end face of the outer ring of the bearing before impact, effectively guaranteeing the impacting effect. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the bearing punching device when the pointed structure passes through the through hole;

[0037] Figure 2 This is a schematic diagram of the bearing punching device;

[0038] Figure 3 This is a schematic diagram of the bearing punching device from another angle;

[0039] Figure 4 This is a top view of the impact point device;

[0040] Figure 5 yes Figure 4 Sectional view of AA;

[0041] Figure 6 This is an exploded view of the impact point device;

[0042] Figure 7 This is a schematic diagram showing the fit between the impact point device and the bearing;

[0043] Figure 8 This is a schematic diagram of the impact sleeve in Example 2.

[0044] The labels for the attached figures are as follows:

[0045] 1. Outer ring of the bearing; 2. Body; 21. Lower end face; 22. Through hole; 221. Tapered structure; 222. Circular part; 23. Protruding post; 231. External thread; 232. Guide limit block; 24. Positioning hole; 25. Threaded hole; 3. Positioning pin; 4. Impact rod; 41. Pointed structure; 5. Impact sleeve; 51. Mounting hole; 511. Small diameter part; 5111. Limiting groove; 512. Large diameter part; 52. Groove; 53. Press head; 54. Indicator light; 6. Anti-loosening nut; 7. Fixing bolt; 8. Handle. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The present invention will now be described in detail with reference to the accompanying drawings.

[0050] Example 1

[0051] like Figures 1 to 7 As shown, a bearing punching device is used to punch the end face of the outer ring 1 of a bearing, comprising:

[0052] The body 2 has a circular lower end face 21, and the outer diameter of the lower end face 21 is less than or equal to the outer diameter of the outer ring 1 of the bearing. The body 2 has at least three through holes 22 evenly distributed around the axis of the body 2. The axis of the through holes 22 is parallel to the axis of the body 2. The lower end of the through holes 22 is located on the lower end face 21 of the body 2. The lower end of the through holes 22 has a tapered structure 221, and the closer it is to the lower end face 21 of the body 2, the smaller the cross-sectional area of ​​the through holes 22.

[0053] The protruding post 23 is located at the upper end of the body 2, and the axis of the protruding post 23 coincides with the axis of the body 2;

[0054] Positioning post 3 is fixed to the lower end of the body 2. The lower end of positioning post 3 protrudes through the lower end face 21 of the body 2, and the axis of positioning post 3 coincides with the axis of the body 2.

[0055] Multiple impact rods 4, the number of impact rods 4 is the same as the number of through holes 22. The impact rods 4 are slidably installed on the corresponding through holes 22. The upper end of the impact rod 4 passes through the through hole 22, and the lower end of the impact rod 4 is a pointed structure 41. The pointed structure 41 is used to perform the impact point operation. Under its own gravity, the pointed structure 41 of the impact rod 4 can pass through the lower end of the through hole 22. The tapered structure 221 of the through hole 22 is used to cooperate with the impact rod 4 to prevent the impact rod 4 from completely detaching from the through hole 22.

[0056] The impact sleeve 5 has a mounting hole 51 in the middle. The impact sleeve 5 is slidably mounted on the protrusion 23 through the mounting hole 51. The impact sleeve 5 is located above each impact rod 4 and is in contact with each impact rod 4. By striking the impact sleeve 5, each impact rod 4 can be driven to impact downward.

[0057] If each impact rod 4 is fixed, the different installation positions of the impact rods 4 will cause the tip structure of each impact rod 4 to be not on the same plane. This will result in some impact points not being able to be impacted or some impact points not having sufficient impact depth during use.

[0058] The bearing punching device of this application performs punching as follows: the positioning pin 3 is inserted into the inner ring of the bearing; the lower end face 21 of the body 2 contacts and engages with the outer ring 1 of the bearing (see...). Figure 7 At this point, the pointed structure 41 of each impact rod 4 is located inside the through hole 22 and is in contact with the end face of the outer ring 1 of the bearing; the impact sleeve 5 is struck, causing each impact rod 4 to impact downwards, thus impacting the outer ring 1 of the bearing. This method ensures that the pointed structure 41 of each impact rod 4 is in contact with the end face of the outer ring 1 of the bearing before impact, effectively ensuring the impact effect.

[0059] The lower end face 21 of the body 2 is circular, and the outer diameter of the lower end face 21 is less than or equal to the outer diameter of the outer ring 1 of the bearing. This design can prevent the body 2 from contacting other parts during operation and affecting the contact with the end face of the outer ring 1 of the bearing.

[0060] In practical applications, the protruding post 23 is integrally formed with the body 2 or fixed to the body 2 by welding or other means.

[0061] It should be noted that the bearing punching device of this application requires the bearing to be in a horizontal position when it is working.

[0062] like Figure 2 , 5 and Figure 6 As shown, in this embodiment, an anti-loosening nut 6 is also included;

[0063] The upper section of the protruding post 23 has an external thread 231;

[0064] The mounting hole 51 includes a small diameter portion 511 located at the bottom and a large diameter portion 512 located at the top. The outer diameter of the anti-loosening nut 6 is greater than the inner diameter of the small diameter portion 511 and less than or equal to the inner diameter of the large diameter portion 512.

[0065] The external thread 231 of the protruding post 23 passes through the minor diameter portion 511 and extends into the major diameter portion 512, and is screwed into the anti-loosening nut 6.

[0066] The impact sleeve 5 will not detach from the protrusion 23 due to the anti-loosening nut 6; the impact sleeve 5 can only slide on the protrusion 23.

[0067] like Figure 6 As shown, in this embodiment, the outer wall of the protruding post 23 has a guide limiting block 232, which is located below the external thread 231;

[0068] The minor diameter portion 511 has a limiting groove 5111 that prevents circumferential rotation and cooperates with the guide limiting block 232.

[0069] The cooperation between the guide limit block 232 and the limit groove 5111 prevents the impact sleeve 5 from rotating circumferentially, which ensures that the contact area with the impact rod 4 is the same each time, thus ensuring long-term stable and reliable operation.

[0070] like Figure 2 and Figure 6 As shown, in this embodiment, the anti-loosening nut 6 is an internal hexagonal nut.

[0071] In this embodiment, the lower end of the body 2 is a truncated cone structure; the outer diameter of the positioning post 3 is the same as the inner diameter of the inner ring of the bearing; the lower end of the positioning post 3 has a chamfer or rounding.

[0072] like Figure 5 As shown, in this embodiment, the through hole 22 includes a circular portion 222, and the tapered structure 221 is a conical portion, with the large-diameter end of the tapered structure 221 docking with the circular portion 222.

[0073] like Figure 2 and 6 As shown, in this embodiment, a fixing bolt 7 is also included;

[0074] The lower end face 21 of the body 2 has a positioning hole 24, and the side wall of the body 2 has a threaded hole 25 communicating with the positioning hole 24.

[0075] The upper end of the positioning pin 3 is inserted into the positioning hole 24, and the fixing bolt 7 is used to screw into the threaded hole 25 and fix the positioning pin 3 against the positioning hole 24.

[0076] like Figure 1 As shown, in this embodiment, a handle 8 is fixed to the outer side wall of the body 2.

[0077] Example 2

[0078] like Figure 8 As shown, the difference between this embodiment and embodiment 1 is that the lower end face 21 of the impact sleeve 5 has a groove 52, and the impact sleeve 5 also includes a circuit structure, which includes a sensor switch and an indicator light 54. The sensor switch has a pressing head 53 that protrudes from the bottom wall of the groove 52.

[0079] The upper end of the impact rod 4 extends into the groove 52. In the initial state, under the gravity of the impact sleeve 5, the upper end face of the impact rod 4 contacts the bottom wall of the groove 52, and the pressing head 53 is pressed. At this time, the induction switch is triggered, and the corresponding indicator light 54 is lit.

[0080] When the wear degree of different impact rods 4 (the pointed structure 41 of the impact rod 4) is different, the impact sleeve 5 will no longer contact the excessively worn impact rod 4 before striking, which will affect the striking effect. By setting the groove 52, the induction switch and the indicator light 54, a self-check can be performed before each strike. When all the indicator lights 54 are lit, it indicates that the wear degree of the impact rod 4 is the same. When at least one indicator light 54 is not lit (the corresponding impact rod 4 is more worn, causing the impact rod 4 to fail to trigger the induction opening), it is necessary to check and replace the corresponding impact rod 4 if necessary, or grind the corresponding impact rod 4.

[0081] The above description is merely a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. A bearing punching device for punching the end face of the outer ring of a bearing, characterized in that, include: The body has a circular lower end face, and the outer diameter of the lower end face is less than or equal to the outer diameter of the outer ring of the bearing. The body has at least three through holes evenly distributed around the axis of the body. The axis of the through holes is parallel to the axis of the body. The lower end of the through holes is located on the lower end face of the body. The lower end of the through holes has a tapered structure, and the cross-sectional area of ​​the through holes is smaller the closer they are to the lower end face of the body. A protruding post is located at the upper end of the body, and the axis of the protruding post coincides with the axis of the body; A positioning post is fixed to the lower end of the main body, the lower end of the positioning post protrudes through the lower end face of the main body, and the axis of the positioning post coincides with the axis of the main body. Multiple impact rods are provided, the number of which is the same as the number of through holes. The impact rods are slidably mounted on the corresponding through holes, with the upper end of the impact rod protruding through the through hole and the lower end of the impact rod having a pointed structure. The pointed structure is used for impacting operations. Under its own gravity, the pointed structure of the impact rod can protrude through the lower end of the through hole. The tapered structure of the through hole is used to cooperate with the impact rod to prevent the impact rod from completely detaching from the through hole. The impact sleeve has a mounting hole in the middle. The impact sleeve is slidably mounted on the protrusion through the mounting hole. The impact sleeve is located above each impact rod and is in contact with each impact rod. By striking the impact sleeve, each impact rod can be driven to impact downward.

2. The bearing punching device as described in claim 1, characterized in that, The method for the bearing punching device to perform punching is as follows: Insert the locating pin into the inner ring of the bearing; Make the lower end face of the body contact and fit with the outer ring face of the bearing. At this time, the pointed structure of each impact rod is located in the through hole and is in contact with the end face of the outer ring of the bearing. The impact sleeve is struck, causing the impact rods to strike downwards, impacting the outer ring of the bearing.

3. The bearing punching device as described in claim 1, characterized in that, It also includes anti-loosening nuts; The upper section of the protrusion has external threads; The mounting hole includes a small diameter portion at the bottom and a large diameter portion at the top. The outer diameter of the anti-loosening nut is greater than the inner diameter of the small diameter portion and less than or equal to the inner diameter of the large diameter portion. The external thread of the protruding post passes through the small diameter portion and extends into the large diameter portion, and is screwed into the anti-loosening nut.

4. The bearing punching device as described in claim 3, characterized in that, The outer wall of the protruding post has a guide limiting block, which is located below the external thread; The smaller diameter portion has a limiting groove that prevents circumferential rotation and cooperates with the guide limiting block.

5. The bearing punching device as described in claim 3, characterized in that, The anti-loosening nut is an internal hexagonal nut.

6. The bearing punching device as described in claim 1, characterized in that, The lower end of the body is a truncated cone structure; the outer diameter of the positioning post is the same as the inner diameter of the inner ring of the bearing; the lower end of the positioning post has a chamfer or rounding.

7. The bearing punching device as described in claim 1, characterized in that, The through hole includes a cylindrical portion, and the tapered structure is a conical portion, with the large-diameter end of the tapered structure abutting the cylindrical portion.

8. The bearing punching device as described in claim 1, characterized in that, It also includes fixing bolts; The lower end face of the body has a positioning hole, and the side wall of the body has a threaded hole communicating with the positioning hole; The upper end of the positioning pin is inserted into the positioning hole, and the fixing bolt is used to screw into the threaded hole and fix the positioning pin against the positioning hole.

9. The bearing punching device as described in claim 1, characterized in that, A handle is fixed to the outer side wall of the body.

10. The bearing punching device as described in claim 3, characterized in that, The lower end face of the impact sleeve has a groove, and the impact sleeve also includes a circuit structure, which includes a sensor switch and an indicator light. The sensor switch has a pressing head that protrudes from the bottom wall of the groove. The upper end of the impact rod extends into the groove. In the initial state, under the gravity of the impact sleeve, the upper end face of the impact rod contacts the bottom wall of the groove, and the pressing head is pressed. At this time, the induction switch is triggered, and the corresponding indicator light is lit.

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