Positioning device for punching crossed roller bearing ring

Abstract

The utility model discloses a positioning device used for punching a crossed roller bearing ring, the bearing ring is provided with a blocking hole used for installing a roller, the positioning device comprises an axial positioning mechanism which is used for positioning the bearing ring in the axial direction and comprises a ring fixing block and a horizontal pressing plate, the bearing ring is clamped between the ring fixing block and the horizontal pressing plate; and the radial positioning mechanism is used for positioning the bearing ring in the radial direction and comprises a mounting plate fixed to the side portion of the ring fixing block and an elastic positioning shaft assembly arranged on the mounting plate, and the elastic positioning shaft assembly can partially extend into the blocking hole to achieve radial positioning of the bearing ring. According to the positioning device for punching the crossed roller bearing ring, the precision and efficiency of hole site machining can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a positioning device for punching holes in a cross roller bearing ring. Background Art

[0002] The cross roller bearing ring is provided with two oil holes and one plugging hole on the circumference. In the prior art, when processing the hole positions on the bearing ring, it is necessary to fix the end face of the ring by two horizontal pressure plates, adsorb it on the electromagnetic chuck of the machine tool, and use the CNC system of the machine tool to center the bearing ring in the axial direction for further processing. However, the processing clamping will have the problem of loose fixing of the ring. During processing, the ring will move in a circular motion, resulting in the scrapping of the oil hole and the plugging hole, and the qualified rate is low. At the same time, each time a hole is processed, the clamping needs to be readjusted, and the machine tool processing drill needs to be repositioned and centered, which makes the processing complicated.

[0003] In order to solve the above problems, the present invention comes into being. Utility Model Content

[0004] The utility model aims to provide a positioning device for punching holes in a cross roller bearing ring, which can improve the processing accuracy and efficiency.

[0005] Based on the above problems, the technical solution provided by the utility model is:

[0006] A positioning device for punching holes in a cross roller bearing ring, wherein the bearing ring is provided with a plugging hole for mounting a roller, and the positioning device comprises:

[0007] An axial positioning mechanism, which is used to position the bearing ring in the axial direction, comprises a ring fixing block and a horizontal pressing plate, and the bearing ring is clamped between the ring fixing block and the horizontal pressing plate;

[0008] A radial positioning mechanism is used to position the bearing ring in the radial direction, comprising a mounting plate fixed to the side of the ring fixing block and an elastic positioning shaft assembly arranged on the mounting plate, wherein the elastic positioning shaft assembly can partially extend into the blocking hole to achieve radial positioning of the bearing ring.

[0009] In some embodiments, the elastic positioning shaft assembly includes a spring sleeve inserted on the mounting plate, a positioning shaft inserted in the spring sleeve, and an elastic member sleeved on the positioning shaft, the spring sleeve is fixed on the positioning shaft and is provided with a limiting portion abutting the mounting plate, the positioning shaft is provided with a limiting platform extending radially outward, the inner wall of the spring sleeve is provided with a limiting ring extending radially inward, and the elastic member is arranged between the limiting platform and the limiting ring.

[0010] In some of the embodiments, one end of the positioning shaft close to the ring fixing block is matched with the blocking hole, and the limiting platform is slidably matched with the spring sleeve.

[0011] In some embodiments, the elastic member is a spring.

[0012] In some of the embodiments, the spring sleeve is fixed on the positioning shaft via a positioning pin.

[0013] In some of the embodiments, a pushing sleeve is provided at one end of the positioning shaft away from the ring fixing block.

[0014] In some of the embodiments, a plurality of washers are provided between the mounting plate and the ferrule fixing block.

[0015] In some of the embodiments, the ring fixing block is provided with a boss for the bearing ring to be placed in, and the horizontal pressure plate is fixed to the boss via fasteners.

[0016] In some of the embodiments, the horizontal pressing plate is provided with a mounting groove for the fastener to extend into and extend to the periphery.

[0017] In some of the embodiments, a hole processing plate is further included, and the hole processing plate is detachably mounted on a side of the ring fixing block.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] (1) The bearing ring is positioned through the axial positioning mechanism and the radial positioning mechanism to prevent the bearing ring from circumferential movement during processing and improve the qualified rate of drilling;

[0020] (2) The elastic positioning shaft assembly can stably abut against the radial direction of the bearing ring, thereby improving the stability of the positioning structure;

[0021] (3) A push sleeve is provided on the positioning shaft to facilitate the positioning operation of the bearing ring;

[0022] (4) Multiple washers are arranged between the mounting plate and the ferrule fixing block to improve the stability of the elastic positioning shaft assembly, thereby improving the positioning stability during drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a structural schematic diagram of an embodiment of a positioning device for drilling holes in a cross roller bearing ring according to the utility model;

[0025] Figure 2 Figure 1 Schematic diagram of the AA section;

[0026] Figure 3 This is the second structural diagram of the embodiment of the utility model;

[0027] in:

[0028] 1. Ferrule fixing block; 1-1. Boss;

[0029] 2. Horizontal pressing plate; 2-1. Mounting slot;

[0030] 3. Mounting plate;

[0031] 4. Spring sleeve; 4-1. Limiting part; 4-2. Limiting ring;

[0032] 5. Positioning axis; 5-1. Limiting table;

[0033] 6. Elastic parts;

[0034] 7. Push sleeve;

[0035] 8. Washer;

[0036] 9. Fasteners;

[0037] 10. Bearing ring;

[0038] 11. Connectors;

[0039] 12. Hole processing plate. DETAILED DESCRIPTION

[0040] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0041] like Figures 1 to 3 As shown, an embodiment of the utility model is provided, which provides a positioning device for drilling holes in a cross roller bearing ring, which is used for positioning when drilling holes in the bearing ring. This example mainly involves the processing of two radial oil holes in the bearing ring 10, and a plugging hole for installing a roller is provided on the bearing ring 10.

[0042] The positioning device comprises an axial positioning mechanism and a radial positioning mechanism, so as to position the bearing ring 10 axially and radially to prevent the bearing ring 10 from circumferential movement during hole machining.

[0043] The axial positioning mechanism is used to position the bearing ring 10 in the axial direction, and includes a ring fixing block 1 and a horizontal pressure plate 2, and the bearing ring 10 is clamped between the ring fixing block 1 and the horizontal pressure plate 2. The ring fixing block 1 is a rectangular parallelepiped structure, and a boss 1-1 for the bearing ring 10 to be placed is provided on the ring fixing block 1. The horizontal pressure plate 2 is fixed on the boss 1-1 through a fastener 9, so that the bearing ring 10 is clamped between the ring fixing block 1 and the horizontal pressure plate 2. A mounting groove 2-1 for the fastener 9 to extend into and extend to the periphery is provided on the horizontal pressure plate 2. The horizontal pressure plate 2 can be fixedly connected to the boss 1-1 by passing the fastener 9 through the mounting groove 2-1 and locking it on the boss 1-1. The position of the horizontal pressure plate 2 can be adjusted by adjusting the position of the fastener 9 in the mounting groove 2-1, so as to facilitate the installation of the horizontal pressure plate 2. Preferably, the fastener 9 is a bolt.

[0044] A radial positioning mechanism is used to radially position the bearing ring 10, comprising a mounting plate 3 fixed to the side of the ring fixing block 1 and an elastic positioning shaft assembly arranged on the mounting plate 3, wherein the elastic positioning shaft assembly can partially extend into the blocking hole of the bearing ring 10 to achieve radial positioning of the bearing ring 10.

[0045] Specifically, the elastic positioning shaft assembly includes a spring sleeve 4 inserted on the mounting plate 3, a positioning shaft 5 inserted in the spring sleeve 4, and an elastic member 6 sleeved on the positioning shaft 5. The spring sleeve 4 is fixed on the positioning shaft 6 and is provided with a limiting portion 4-1 abutting against the mounting plate 3. The limiting portion 4-1 extends from the outer wall of the spring sleeve 4 to the outer circumference and is larger than the through hole on the mounting plate 3 through which the spring sleeve 4 passes. A limiting platform 5-1 extending radially outward is provided on the positioning shaft 5, and a limiting ring 4-2 extending radially inward is provided on the inner wall of the spring sleeve 4. The elastic member 6 is arranged between the limiting platform 5-1 and the limiting ring 4-2. The elastic member 6 has a tendency to push the positioning shaft 5 toward the bearing ring 10, so that the positioning shaft 5 can be stably positioned on the bearing ring 10, thereby preventing the bearing ring 10 from moving in the circumferential direction. Preferably, the elastic member 6 is a spring.

[0046] In order to facilitate the positioning shaft 5 to extend into the bearing ring 10, one end of the positioning shaft 5 close to the ring fixing block 1 is adapted to the blocking hole. The limit platform 5-1 is slidably matched with the inner wall of the spring sleeve 4 so as to move axially with the positioning shaft 5 relative to the spring sleeve 4.

[0047] In this example, the spring sleeve 4 is fixed on the positioning shaft 5 via a positioning pin, so as to facilitate the installation and disassembly between the spring sleeve 4 and the positioning shaft 5 .

[0048] In order to facilitate the positioning operation between the positioning shaft 5 and the bearing ring 10, a push sleeve 7 is provided at one end of the positioning shaft 5 away from the ring fixing block. The push sleeve 7 is fixed to the end of the positioning shaft 5 via a connecting member 11. Preferably, the connecting member 11 can be a bolt.

[0049] In order to improve the stability of the positioning structure, a plurality of washers 8 are provided between the mounting plate 3 and the ferrule fixing block 1. In this example, the mounting plate 3 is fixed to the ferrule fixing block 1 via two pins, and the washers 8 are sleeved on the pins and abutted between the mounting plate 3 and the ferrule fixing block 1.

[0050] In order to facilitate the processing of the oil hole position of the bearing ring 10, a hole position processing plate 12 is also provided. The hole position processing plate 12 is detachably mounted on the side of the ring fixing block 1. Positioning holes adapted to the oil holes are provided on the hole position processing plate 12 so that a processing tool can be inserted to process the oil holes of the bearing ring 10. The installation height of the hole position processing plate 12 on the ring fixing block 1 can be adjusted as needed to meet the processing requirements of different bearing ring 10 holes.

[0051] During processing, place the bearing ring 10 on the ring fixing block 1, place the horizontal pressure plate 2 on the upper end surface of the bearing ring 10, use the fastener 9 to fix the horizontal pressure plate 2 on the ring fixing block 1 and lock it, adjust the height of the mounting plate 3, so that the positioning shaft 5 extends to the blocking hole of the bearing ring 10, complete the axial and radial positioning of the bearing ring 10, and then install the hole processing plate 12 to a suitable height, and finally use a punching tool to process the oil holes on one radial side of the bearing ring 10 through the hole processing plate 12. When it is necessary to process the oil holes on the other radial side of the bearing ring 10, remove the horizontal pressure plate 2, flip the bearing ring 10, and then lock it.

[0052] In summary, the positioning device can stably position the bearing ring, avoid movement and displacement during hole processing, and improve the quality and efficiency of hole processing.

[0053] The above examples are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A positioning device for drilling holes in a cross roller bearing ring, wherein the bearing ring is provided with a plugging hole for mounting a roller, characterized in that: The positioning device comprises: An axial positioning mechanism, which is used to position the bearing ring in the axial direction, comprises a ring fixing block and a horizontal pressing plate, and the bearing ring is clamped between the ring fixing block and the horizontal pressing plate; A radial positioning mechanism is used to position the bearing ring in the radial direction, comprising a mounting plate fixed to the side of the ring fixing block and an elastic positioning shaft assembly arranged on the mounting plate, wherein the elastic positioning shaft assembly can partially extend into the blocking hole to achieve radial positioning of the bearing ring.

2. The positioning device for drilling holes in a cross roller bearing ring according to claim 1, characterized in that: The elastic positioning shaft assembly includes a spring sleeve inserted on the mounting plate, a positioning shaft inserted in the spring sleeve and an elastic member sleeved on the positioning shaft, the spring sleeve is fixed on the positioning shaft and is provided with a limiting portion abutting against the mounting plate, the positioning shaft is provided with a limiting platform extending radially outward, the inner wall of the spring sleeve is provided with a limiting ring extending radially inward, and the elastic member is arranged between the limiting platform and the limiting ring.

3. The positioning device for drilling holes in a cross roller bearing ring according to claim 2, characterized in that: One end of the positioning shaft close to the ferrule fixing block is matched with the blocking hole, and the limiting platform is slidably matched with the spring sleeve.

4. The positioning device for drilling holes in a crossed roller bearing ring according to claim 3, characterized in that: The elastic member is a spring.

5. The positioning device for punching holes in a cross roller bearing ring according to claim 2, characterized in that: The spring sleeve is fixed on the positioning shaft via a positioning pin.

6. The positioning device for drilling holes in a cross roller bearing ring according to claim 2, characterized in that: A pushing sleeve is provided at one end of the positioning shaft away from the ferrule fixing block.

7. The positioning device for drilling holes in a cross roller bearing ring according to claim 2, characterized in that: A plurality of washers are arranged between the mounting plate and the ferrule fixing block.

8. The positioning device for drilling holes in a crossed roller bearing ring according to claim 1, characterized in that: The ring fixing block is provided with a boss for the bearing ring to be placed in, and the horizontal pressing plate is fixed on the boss via a fastener.

9. The positioning device for drilling holes in a cross roller bearing ring according to claim 8, characterized in that: The horizontal pressing plate is provided with a mounting groove for the fastener to extend into and extend to the periphery.

10. The positioning device for punching holes in a cross roller bearing ring according to any one of claims 1 to 9, characterized in that: It also includes a hole processing plate, which is detachably mounted on the side of the ring fixing block.

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