Special tool for synchronous press fitting of rim bearing and oil seal

Abstract

The utility model relates to a special tool for synchronously press-fitting a rim bearing and an oil seal, which is characterized by comprising a press-fitting block detachably connected with a press head of a press-fitting machine, a bearing press-fitting hole and an oil seal press-fitting hole which are concentrically arranged are arranged at the bottom of the press-fitting block, the diameter D1 of the bearing press-fitting hole is smaller than the diameter D3 of the oil seal press-fitting hole, and when press-fitting is carried out, the oil seal press-fitting hole is matched with the bearing press-fitting hole. The oil seal is placed in the oil seal press-fitting hole of the press-fitting block, the bearing is placed at the bearing installation position of the rim, the press-fitting block moves downwards under the action of a pressing head of the press-fitting machine, the bearing and the oil seal are synchronously press-fitted to the corresponding position of the rim through the press-fitting block, and at the moment, the bearing is located in the bearing press-fitting hole of the press-fitting block. According to the utility model, a bearing and an oil seal can be synchronously pressed by using one set of equipment, so that the pressing frequency and the turnover and carrying of rims are reduced, and the pressing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a special tooling, specifically a special tooling for synchronously pressing wheel rim bearings and oil seals. Background Technology

[0002] In existing technology, the axle hole of a motorcycle wheel rim requires press-fitting of a bearing, and the external drive rotor requires press-fitting of an oil seal. Press-fitting the bearing requires relatively high pressure and precise positioning, while press-fitting the oil seal only requires proper placement. Existing technology first presses the bearing, then moves the wheel rim to another set of equipment to press-fit the oil seal. This means that existing technology requires two sets of press-fitting equipment and two separate press-fitting processes for the bearing and oil seal, respectively. Furthermore, after pressing the bearing, the wheel rim needs to be transferred to the next press-fitting process. The disadvantages of this approach are that it is not only cumbersome and inefficient, but also requires transferring the wheel rim midway, resulting in high press-fitting costs due to the need for different press-fitting equipment. Summary of the Invention

[0003] The purpose of this utility model is to provide a special tooling for synchronously pressing bearings and oil seals on wheel rims using a single set of equipment, thereby reducing the frequency of pressing and the turnover and handling of wheel rims, and improving pressing efficiency.

[0004] To achieve the above objectives, the technical solution of this utility model is: a special tooling for synchronously pressing rim bearings and oil seals, the innovation of which lies in: including a pressing block that is detachably connected to the pressing head of the pressing machine, wherein the bottom of the pressing block is provided with concentrically arranged bearing pressing holes and oil seal pressing holes, and the diameter D1 of the bearing pressing hole is smaller than the diameter D3 of the oil seal pressing hole.

[0005] During press fitting, the oil seal is placed in the oil seal press fitting hole of the press fitting block, and the bearing is placed in the bearing mounting position of the wheel rim. The press fitting block moves downward under the action of the press head of the press fitting machine, so that the press fitting block presses the bearing and the oil seal synchronously into the corresponding position of the wheel rim. At this time, the bearing is located in the bearing press fitting hole of the press fitting block.

[0006] In the above technical solution, the pressing block includes a quick-change connector and a pressing body that are integrally or fixedly connected. The quick-change connector is used to detachably connect to the pressing head of the pressing machine. The bottom of the pressing body is provided with concentrically arranged bearing pressing holes and oil seal pressing holes.

[0007] In the above technical solution, the quick-connect coupling has an annular positioning groove that forms a positioning engagement with the press head of the press machine.

[0008] In the above technical solution, the press block has a mandrel hole that forms a positioning fit with the wheel rim, and the mandrel hole is arranged coaxially with the bearing press hole.

[0009] In the above technical solution, the bottom of the press-fit block, between the bearing press-fit hole and the oil seal press-fit hole, is also provided with a rim end clearance slot arranged concentrically with the bearing press-fit hole. The diameter D2 of the rim end clearance slot is related to the diameters of the bearing press-fit hole and the oil seal press-fit hole in that D1 < D2 < D3.

[0010] In the above technical solution, the overall structure of the pressing block is an inverted T-shape.

[0011] In the above technical solution, the quick-connect coupling is a cylindrical structure, and the press-fitting body is a disc-shaped structure or a cuboid structure.

[0012] In the above technical solution, the wheel rim end clearance slot includes a clearance groove protruding from the wheel rim end and a clearance hole arranged concentrically with the bearing press-fit hole.

[0013] The positive effects of this utility model are as follows: After adopting the special tooling for synchronous press-fitting of wheel rim bearings and oil seals according to this utility model, since this utility model includes a press-fitting block that is detachably connected to the press head of the press-fitting machine, the bottom of the press-fitting block is provided with concentrically arranged bearing press-fitting holes and oil seal press-fitting holes, and the diameter D1 of the bearing press-fitting hole is smaller than the diameter D3 of the oil seal press-fitting hole.

[0014] During press fitting, the press fitting block is mounted onto the press head of the press fitting machine. The wheel rim is placed on the worktable of the press fitting machine, the oil seal is placed in the oil seal press fitting hole of the press fitting block, and the bearing is placed in the bearing mounting position of the wheel rim. At this time, the positioning mandrel on the worktable of the press fitting machine moves upward and is located in the shaft hole of the wheel rim, so that the bearing is located on the outer circumference of the positioning mandrel. The press fitting block moves downward under the action of the press head of the press fitting machine, so that the press fitting block presses the bearing and oil seal synchronously into the corresponding position of the wheel rim. At this time, the bearing is located in the bearing press fitting hole of the press fitting block.

[0015] This invention not only enables the synchronous installation of bearings and oil seals onto the wheel rim, but also ensures the pressing accuracy and force of the bearings, allowing them to be pressed into place. The advantages of this invention are: firstly, its simple and reliable structure facilitates production and implementation, and is easy to promote; secondly, by synchronously pressing the bearings and oil seals, it reduces the frequency of pressing, as well as the turnover and handling of the wheel rim, improving pressing efficiency and reducing the risk of damage during the pressing process; and thirdly, compared to existing technologies, this invention reduces one pressing operation and saves a set of pressing equipment, significantly lowering pressing costs. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of one specific embodiment of the present invention;

[0017] Figure 2This is a diagram showing the usage state of this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and the given embodiments, but it is not limited thereto.

[0019] like Figure 1 , 2 As shown, a special tooling for synchronously pressing rim bearings and oil seals includes a pressing block 1 detachably connected to the press head of a pressing machine. The bottom of the pressing block 1 has concentrically arranged bearing pressing holes 2 and oil seal pressing holes 3, with the diameter D1 of the bearing pressing hole 2 being smaller than the diameter D3 of the oil seal pressing hole 3. The bearing pressing hole 2 and the oil seal pressing hole 3 are integrally formed as a stepped inner hole structure.

[0020] During press fitting, the oil seal is placed in the oil seal press fitting hole 3 of the press fitting block 1, and the bearing is placed in the bearing mounting position of the wheel rim. The press fitting block 1 moves downward under the action of the press head of the press fitting machine, so that the press fitting block 1 presses the bearing and the oil seal synchronously in the corresponding position of the wheel rim. At this time, the bearing is located in the bearing press fitting hole 2 of the press fitting block 1.

[0021] Furthermore, such as Figure 1 As shown, in order to make the structure more reasonable, so as to achieve both connection with the press head of the press machine and effective press installation of bearings and oil seals, the press block 1 includes a quick-change connector 11 and a press body 12 that are integrally or fixedly connected. The quick-change connector 11 is used to detachably connect with the press head of the press machine. The bottom of the press body 12 is provided with concentrically arranged bearing press holes 2 and oil seal press holes 3.

[0022] Furthermore, such as Figure 1 As shown, in order to further improve the positioning connection with the press head of the press machine, the quick-change connector 11 has an annular positioning groove 13 that forms a positioning engagement with the press head of the press machine.

[0023] Furthermore, such as Figure 1 , 2 As shown, to ensure a positioning connection between the press-fit block and the rim, and to guarantee the pressing accuracy of the subsequent bearing and oil seal press-fitting, the press-fit block 1 has a mandrel hole 4 that forms a positioning fit with the rim. The mandrel hole 4 is coaxially arranged with the bearing press-fitting hole 2. During press-fitting, the rim is placed on the worktable of the press-fitting machine, and the positioning mandrel on the worktable extends and rises continuously to insert into the mandrel hole 4 of the press-fit block 1, making the press-fit block 1 coaxial with the rim and positioning the rim. At the same time, the positioning mandrel also passes through the bearing inner hole placed in the bearing mounting position of the rim, further ensuring the accuracy of the bearing press-fitting position.

[0024] Furthermore, such as Figure 1As shown, in order to prevent the pressing block from interfering with the wheel rim during the pressing of the bearing and oil seal, thus affecting the normal pressing process, the bottom of the pressing block 1, between the bearing pressing hole 2 and the oil seal pressing hole 3, is also provided with a wheel rim end clearance slot 5 arranged concentrically with the bearing pressing hole 2. The diameter D2 of the wheel rim end clearance slot 5 is related to the diameters of the bearing pressing hole 2 and the oil seal pressing hole 3 in that D1 < D2 < D3.

[0025] Furthermore, such as Figure 1 As shown, in order to further improve the structural rationality, make it simple and reliable, and facilitate production and implementation and promotion, the overall structure of the press block 1 is an inverted T-shape.

[0026] Furthermore, in order to facilitate production and implementation and easy promotion, the quick-connect coupling 11 of this utility model is a cylindrical structure, and the pressing body 12 is a disc-shaped structure or a cuboid structure.

[0027] Furthermore, such as Figure 1 In order to synchronously avoid the wheel rim end and the end protrusion to prevent interference and affect the press-fitting, the wheel rim end avoidance slot 5 includes an avoidance groove 51 for the wheel rim end protrusion and an avoidance hole 52 arranged concentrically with the bearing press-fitting hole 2.

[0028] like Figure 2 As shown, when using this utility model, the quick-connect coupling 11 of the pressing block 1 is installed on the pressing head of the pressing machine, the rim 6 is placed on the worktable of the pressing machine, the oil seal 8 is placed in the oil seal pressing hole 3 of the pressing block 1, and the bearing 7 is placed in the bearing mounting position of the rim 6. At this time, the positioning mandrel 9 on the worktable of the pressing machine extends upward through the shaft hole of the rim and enters the mandrel hole 4 of the pressing block 1, and the bearing is located on the outer periphery of the positioning mandrel 9, ensuring the coaxiality of the bearing 7, the pressing block 1 and the rim 6. The pressing block 1 moves downward under the action of the pressing head of the pressing machine, so that the pressing block 1 presses the bearing and the oil seal synchronously on the corresponding part of the rim. At this time, the bearing is located in the bearing pressing hole 2 of the pressing block 1.

[0029] This invention not only enables the synchronous installation of bearings and oil seals onto the wheel rim, but also ensures the pressing accuracy and force of the bearings, allowing them to be pressed into place. The advantages of this invention are: firstly, its simple and reliable structure facilitates production and implementation, and is easy to promote; secondly, by synchronously pressing the bearings and oil seals, it reduces the frequency of pressing, as well as the turnover and handling of the wheel rim, improving pressing efficiency and reducing the risk of damage during the pressing process; and thirdly, compared to existing technologies, this invention reduces one pressing operation and saves a set of pressing equipment, significantly lowering pressing costs.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A special tooling for synchronously pressing together a wheel rim bearing and an oil seal, characterized in that: The device includes a pressing block (1) that is detachably connected to the pressing head of a pressing machine. The bottom of the pressing block (1) is provided with concentrically arranged bearing pressing holes (2) and oil seal pressing holes (3), and the diameter D1 of the bearing pressing holes (2) is smaller than the diameter D3 of the oil seal pressing holes (3). During press fitting, the oil seal is placed in the oil seal press fitting hole (3) of the press fitting block (1), and the bearing is placed in the bearing mounting position of the rim. The press fitting block (1) moves downward under the action of the press head of the press fitting machine, so that the press fitting block (1) presses the bearing and the oil seal synchronously in the corresponding position of the rim. At this time, the bearing is located in the bearing press fitting hole (2) of the press fitting block (1).

2. The special tooling for synchronously pressing rim bearings and oil seals according to claim 1, characterized in that: The pressing block (1) includes a quick-change connector (11) and a pressing body (12) that are integrally or fixedly connected. The quick-change connector (11) is used to detachably connect to the pressing head of the pressing machine. The bottom of the pressing body (12) is provided with concentrically arranged bearing pressing holes (2) and oil seal pressing holes (3).

3. The special tooling for synchronously pressing rim bearings and oil seals according to claim 2, characterized in that: The quick-connect coupling (11) has an annular positioning groove (13) that forms a positioning engagement with the press head of the press machine.

4. The special tooling for synchronously pressing rim bearings and oil seals according to claim 1, characterized in that: The press block (1) has a spindle hole (4) that forms a positioning fit with the rim, and the spindle hole (4) is arranged coaxially with the bearing press hole (2).

5. The special tooling for synchronously pressing rim bearings and oil seals according to claim 1, characterized in that: The bottom of the press-fit block (1) and between the bearing press-fit hole (2) and the oil seal press-fit hole (3) is also provided with a rim end clearance slot (5) arranged concentrically with the bearing press-fit hole (2). The diameter D2 of the rim end clearance slot (5) is related to the diameters of the bearing press-fit hole (2) and the oil seal press-fit hole (3) in that D1 < D2 < D3.

6. The special tooling for synchronously pressing rim bearings and oil seals according to claim 1 or 2, characterized in that: The overall structure of the press block (1) is an inverted T-shape.

7. The special tooling for synchronously pressing rim bearings and oil seals according to claim 2, characterized in that: The quick-connector (11) is a cylindrical structure, and the press-fitting body (12) is a disc-shaped structure or a cuboid structure.

8. The special tooling for synchronously pressing rim bearings and oil seals according to claim 5, characterized in that: The rim end clearance slot (5) includes a clearance groove (51) protruding from the rim end and a clearance hole (52) arranged concentrically with the bearing press-fit hole (2).

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