Bearing punching point device

Abstract

The invention discloses a bearing punching point device which comprises a body, a bearing punching point, a bearing punching point, a bearing punching point, a bearing punching point, a bearing punching point, a bearing punching point, a bearing punching point and a bearing punching point, and is characterized in that the outer diameter of the lower end face is smaller than or equal to that of an outer ring of a bearing; the convex column is positioned at the upper end of the body; the lower end of the positioning column penetrates out of the lower end face of the body; the number of the impact rods is the same as that of the through holes, the impact rods are installed on the corresponding through holes in a sliding mode, the upper ends of the impact rods penetrate out of the through holes, the lower ends of the impact rods are of sharp structures, and under the action of self gravity, the sharp structures of the impact rods can penetrate out of the lower ends of the through holes; a mounting hole is formed in the middle of the impact sleeve, the impact sleeve is slidably mounted on the convex column through the mounting hole, the impact sleeve is located above the impact rods and is in contact fit with the impact rods, and the impact rods can be driven to impact downwards by knocking the impact sleeve. It can be guaranteed that the sharp structures of all the impact rods make contact with the end face of the outer ring of the bearing before impact, and the point impact effect is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, and in particular to a bearing punching device. Background Art

[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 spaced around the center line of the bearing). The purpose of the punch points is to deform the inner diameter of the bearing seat hole at both ends to prevent the bearing from falling out of the bearing seat hole or causing axial displacement during use.

[0003] The traditional punching method is to use a hammer to hit a pointed rod to punch the end face of the bearing outer ring one by one. This method has low processing efficiency and cannot ensure that the positions of each punching point are evenly distributed. Summary of the invention

[0004] In view of the above problems, the present invention proposes a bearing punching device.

[0005] The technical solution adopted by the present invention is as follows:

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

[0007] A body, wherein the lower end surface of the body is circular, and the outer diameter of the lower end surface is less than or equal to the outer diameter of the outer ring of the bearing, and the body is provided with 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 at the lower end surface of the body, the lower end of the through holes is a tapered structure, and the closer to the lower end surface of the body, the smaller the cross-sectional area of ​​the through holes;

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

[0009] A positioning column is fixed at the lower end of the body, the lower end of the positioning column passes through the lower end surface of the body, and the axis of the positioning column coincides with the axis of the body;

[0010] A plurality of impact rods, the number of the impact rods is the same as the number of the through holes, the impact rods are slidably mounted on the corresponding through holes, the upper end of the impact rod passes through the through holes, the lower end of the impact rod is a pointed structure, the pointed structure is used for punching operation, under the action of its own gravity, the pointed structure of the impact rod can pass 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, and the impact sleeve is slidably mounted on the convex column through the mounting hole. The impact sleeve is located above each impact rod and contacts and cooperates with each impact rod. By knocking the impact sleeve, each impact rod can be driven to impact downward.

[0012] If the impact rods are fixed, the tip structures of the impact rods will not be in the same plane due to different installation position precisions of the impact rods. This will cause some impact points to fail to impact or some impact points to have insufficient impact depth during use.

[0013] The bearing punching device of the present application performs punching as follows: insert the positioning column into the inner ring of the bearing; make the lower end face of the body contact and cooperate with the outer ring face of the bearing, at which time the pointed structures of each impact rod are located in the through hole and contact the end face of the outer ring of the bearing; strike the impact sleeve to drive each impact rod to impact downward to punch the outer ring of the bearing. This method can ensure 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 ensuring the punching 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 arrangement can prevent the body from contacting other components during operation and affecting the contact with the outer ring end face of the bearing.

[0015] In actual use, the boss is integrally formed with the body or fixed to the body by welding or the like.

[0016] It should be noted that when the bearing punching device of the present application is working, the bearing needs to be in a horizontal position.

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

[0018] The upper section of the protruding column has an external thread;

[0019] The mounting hole includes a small diameter portion located at the bottom and a large diameter portion located at the top, and the outer diameter of the anti-dropping nut is larger than the inner diameter of the small diameter portion and smaller than or equal to the inner diameter of the large diameter portion;

[0020] The external thread of the protruding column passes through the small diameter portion and then extends into the large diameter portion, and is threadedly connected with the anti-slip nut.

[0021] The impact sleeve will not be separated from the boss by the anti-drop nut, and the impact sleeve can only slide on the boss.

[0022] In one embodiment of the present invention, the outer side wall of the boss has a guide stopper, and the guide stopper is located below the external thread;

[0023] The small diameter portion has a limiting groove that cooperates with the guide limiting block to prevent circumferential rotation.

[0024] The cooperation between the guide limit block and the limit groove prevents the impact sleeve from rotating in the circumferential direction, which can ensure that the contact area with the impact rod is the same each time, thereby ensuring long-term stable and reliable operation.

[0025] In one embodiment of the present invention, the anti-drop nut is a hexagonal nut.

[0026] In one embodiment of the present invention, the lower end of the body is a conical structure; the outer diameter of the positioning column is the same as the inner diameter of the inner ring of the bearing; and the lower end of the positioning column has a chamfer or a rounded corner.

[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 butted against the circular portion.

[0028] In one embodiment of the present invention, it further includes a fixing bolt;

[0029] The lower end surface of the body has a positioning hole, and the side wall of the body has a threaded hole connected to the positioning hole;

[0030] The upper end of the positioning column is inserted into the positioning hole, and the fixing bolt is used to be screwed into the threaded hole and to press and fix the positioning column on 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 surface of the impact sleeve has a groove, and the impact sleeve also includes a circuit structure, the circuit structure includes an induction switch and an indicator light, and the induction switch has 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 surface of the impact rod contacts the bottom wall of the groove and presses the pressing head. At this time, the induction switch is triggered and the corresponding indicator light is on.

[0034] When the degree of wear of different impact rods (the pointed structure of the impact rod) is different, before striking, the impact sleeve will no longer contact the impact rod that is too worn, which will affect the punching effect. By setting the groove, sensor switch and indicator light, self-checking can be performed before each strike. When all the indicator lights are on, it means that the degree of wear of the impact rods is the same. When at least one indicator light is off (the corresponding impact rod is more worn, resulting in the impact rod not being able to trigger the sensing opening), it is necessary to check and, if necessary, replace the corresponding impact rod or polish the corresponding impact rod.

[0035] The beneficial effects of the present invention are as follows: the method for punching the bearing punching device of the present application is as follows: insert the positioning column into the inner ring of the bearing; make the lower end face of the body contact and cooperate with the outer ring face of the bearing, at which time the pointed structures of each impact rod are located in the through hole and contact the end face of the outer ring of the bearing; strike the impact sleeve to drive each impact rod to impact downward to punch the outer ring of the bearing. This method can ensure 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 ensuring the punching effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0040] Figure 5 yes Figure 4 Middle AA section view;

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

[0042] Figure 7 It is a schematic diagram of the cooperation between the impact point device and the bearing;

[0043] Figure 8 Schematic diagram of the impact sleeve of Example 2.

[0044] The reference numerals in the figures are:

[0045] 1. Outer ring of the bearing; 2. Main body; 21. Lower end face; 22. Through hole; 221. Tapered structure; 222. Circular part; 23. Boss; 231. External thread; 232. Guide limit block; 24. Positioning hole; 25. Threaded hole; 3. Positioning column; 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. Pressing head; 54. Indicator light; 6. Anti-slip nut; 7. Fixing bolt; 8. Handle. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0047] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0048] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] The present invention is described in detail below in conjunction with the accompanying drawings.

[0050] Example 1

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

[0052] The body 2 has a circular lower end surface 21, and the outer diameter of the lower end surface 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, and the axis of the through hole 22 is parallel to the axis of the body 2. The lower end of the through hole 22 is located at the lower end surface 21 of the body 2. The lower end of the through hole 22 is a tapered structure 221, and the closer to the lower end surface 21 of the body 2, the smaller the cross-sectional area of ​​the through hole 22 is;

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

[0054] The positioning column 3 is fixed at the lower end of the body 2, the lower end of the positioning column 3 passes through the lower end surface 21 of the body 2, and the axis of the positioning column 3 coincides with the axis of the body 2;

[0055] A plurality of impact rods 4, the number of the impact rods 4 is the same as the number of the through holes 22, the impact rods 4 are slidably mounted on the corresponding through holes 22, the upper end of the impact rod 4 passes through the through holes 22, the lower end of the impact rod 4 is a pointed structure 41, the pointed structure 41 is used for punching operation, under the action of 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 boss 23 through the mounting hole 51. The impact sleeve 5 is located above each impact rod 4 and contacts and cooperates with each impact rod 4. By knocking the impact sleeve 5, each impact rod 4 can be driven to impact downward.

[0057] If the impact rods 4 are fixed, the tip structures of the impact rods 4 will not be in the same plane due to different installation position accuracy of the impact rods 4. This will cause some impact points to fail to impact or the impact depth of some impact points to be insufficient during use.

[0058] The bearing punching device of the present application performs punching as follows: insert the positioning column 3 into the inner ring of the bearing; make the lower end surface 21 of the body 2 contact and match with the outer ring 1 of the bearing (see Figure 7 ), at this time, the pointed structure 41 of each impact rod 4 is located in the through hole 22 and contacts the end face of the outer ring 1 of the bearing; the impact sleeve 5 is struck, driving each impact rod 4 to impact downward, and punching the outer ring 1 of the bearing. This method can ensure 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 punching 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 arrangement can prevent the body 2 from contacting other components during operation and affecting the contact with the end face of the outer ring 1 of the bearing.

[0060] In actual use, the boss 23 is formed integrally with the body 2 or fixed to the body 2 by welding or other methods.

[0061] It should be noted that when the bearing punching device of the present application is working, the bearing needs to be in a horizontal position.

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

[0063] The upper section of the boss 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-dropping nut 6 is larger than the inner diameter of the small diameter portion 511 and smaller than or equal to the inner diameter of the large diameter portion 512.

[0065] The external thread 231 of the protruding column 23 passes through the small diameter portion 511 and then extends into the large diameter portion 512 , and is threadedly connected to the anti-dropping nut 6 .

[0066] The impact sleeve 5 will not be separated from the boss 23 by the anti-slip nut 6 , and the impact sleeve 5 can only slide on the boss 23 .

[0067] like Figure 6 As shown, in this embodiment, the outer side wall of the boss 23 has a guide stopper 232, and the guide stopper 232 is located below the external thread 231;

[0068] The small diameter portion 511 has a limiting groove 5111 that cooperates with the guide limiting block 232 to prevent circumferential rotation.

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

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

[0071] In this embodiment, the lower end of the body 2 is a conical structure; the outer diameter of the positioning column 3 is the same as the inner diameter of the inner ring of the bearing; and the lower end of the positioning column 3 has a chamfer or a rounded corner.

[0072] like Figure 5 As shown, in this embodiment, the through hole 22 includes a circular portion 222 , the tapered structure 221 is a conical portion, and the large diameter end of the tapered structure 221 is connected to 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 surface 21 of the body 2 has a positioning hole 24, and the side wall of the body 2 has a threaded hole 25 connected to the positioning hole 24;

[0075] The upper end of the positioning column 3 is inserted into the positioning hole 24 , and the fixing bolt 7 is used to be screwed into the threaded hole 25 and to press and fix the positioning column 3 on 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 the embodiment 1 is that: the lower end surface 21 of the impact sleeve 5 has a groove 52, the impact sleeve 5 also includes a circuit structure, the circuit structure includes an induction switch and an indicator light 54, and the induction switch has a pressing head 53 protruding 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 action of gravity of the impact sleeve 5, the upper end surface 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 in a lit state.

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

[0081] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A bearing punching device, used for punching the end face of the outer ring of a bearing, characterized in that: include: A body, wherein the lower end surface of the body is circular, and the outer diameter of the lower end surface is less than or equal to the outer diameter of the outer ring of the bearing, and the body is provided with 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 at the lower end surface of the body, the lower end of the through holes is a tapered structure, and the closer to the lower end surface of the body, the smaller the cross-sectional area of ​​the through holes; A convex column is located at the upper end of the body, and the axis of the convex column coincides with the axis of the body; A positioning column is fixed at the lower end of the body, the lower end of the positioning column passes through the lower end surface of the body, and the axis of the positioning column coincides with the axis of the body; A plurality of impact rods, the number of the impact rods is the same as the number of the through holes, the impact rods are slidably mounted on the corresponding through holes, the upper end of the impact rod passes through the through holes, the lower end of the impact rod is a pointed structure, the pointed structure is used for punching operation, under the action of its own gravity, the pointed structure of the impact rod can pass 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, and the impact sleeve is slidably mounted on the convex column through the mounting hole. The impact sleeve is located above each impact rod and contacts and cooperates with each impact rod. By knocking the impact sleeve, each impact rod can be driven to impact downward.

2. The bearing punching device according to claim 1, characterized in that: The bearing punching device performs punching methods as follows: Insert the locating column into the inner ring of the bearing; The lower end surface of the body is in contact with the outer ring surface of the bearing. At this time, the pointed structures of each impact rod are located in the through hole and are in contact with the end surface of the outer ring of the bearing; Hitting the impact sleeve drives each impact rod to impact downward, impacting the outer ring of the bearing.

3. The bearing punching device according to claim 1, characterized in that: Also includes an anti-stripping nut; The upper section of the protruding column has an external thread; The mounting hole includes a small diameter portion located at the bottom and a large diameter portion located at the top, and the outer diameter of the anti-dropping nut is larger than the inner diameter of the small diameter portion and smaller than or equal to the inner diameter of the large diameter portion; The external thread of the protruding column passes through the small diameter portion and then extends into the large diameter portion, and is threadedly connected with the anti-slip nut.

4. The bearing punching device according to claim 3, characterized in that: The outer side wall of the boss is provided with a guide stop block, and the guide stop block is located below the external thread; The small diameter portion has a limiting groove that cooperates with the guide limiting block to prevent circumferential rotation.

5. The bearing punching device according to claim 3, characterized in that: The anti-drop nut is a hexagonal nut.

6. The bearing punching device according to claim 1, characterized in that: The lower end of the body is a conical structure; the outer diameter of the positioning column is the same as the inner diameter of the inner ring of the bearing; the lower end of the positioning column has a chamfer or a rounded corner.

7. The bearing punching device according to claim 1, characterized in that: The through hole includes a cylindrical portion, the tapered structure is a conical portion, and the large-diameter end of the tapered structure is butted against the cylindrical portion.

8. The bearing punching device according to claim 1, characterized in that: It also includes fixing bolts; The lower end surface of the body has a positioning hole, and the side wall of the body has a threaded hole connected to the positioning hole; The upper end of the positioning column is inserted into the positioning hole, and the fixing bolt is used to be screwed into the threaded hole and to press and fix the positioning column on the positioning hole.

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

10. The bearing punching device according to claim 3, characterized in that: The lower end surface of the impact sleeve has a groove, and the impact sleeve also includes a circuit structure, the circuit structure includes an induction switch and an indicator light, and the induction switch has a pressing head protruding 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 surface of the impact rod contacts the bottom wall of the groove and presses the pressing head. At this time, the induction switch is triggered and the corresponding indicator light is on.

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