Assembly tool for tapered roller bearing inner assembly

Abstract

The utility model discloses an assembling tool for an inner component of a tapered roller bearing. The assembling tool comprises a workbench, a supporting frame and a roller guiding disc. The workbench comprises four supporting legs, a workbench plate fixed to the tops of the four supporting legs and a supporting plate fixed to the middles of the four supporting legs. The supporting frame comprises a bottom tray fixed to the center of the top face of the supporting plate, a telescopic supporting column fixed to the center of the top face of the bottom tray and a through hole table fixed to the top of the telescopic supporting column. The through hole table is inserted into the through hole of the working table plate, a screw rod is fixed in the center of the top surface of the through hole table, and four cross-shaped guide sliding grooves are formed in the periphery of the screw rod; the four clamping plates are installed in the four guide sliding grooves in a one-to-one correspondence mode through sliding blocks respectively. A threaded blind hole is formed in the center of the bottom surface of the roller guide disc, so that the roller guide disc is mounted on the screw rod; a plurality of arc-shaped guide grooves are evenly formed in the outer circumferential face of the roller guide disc in the circumferential direction. According to the utility model, the problems of instability and low assembly efficiency of the tapered roller are solved.

Description

Technical Field

[0001] This utility model relates to an assembly fixture for internal components of tapered roller bearings. Background Technology

[0002] During the independent research and development stage of tapered roller bearings, it is often necessary to manually assemble small batches of samples. Tapered roller bearings consist of an outer ring and an inner assembly. The inner assembly is the assembly of the tapered rollers, cage, and inner ring into one unit. For small and medium-sized tapered roller bearings, there is often a situation where the tapered rollers are small in shape and numerous, which is an unstable risk factor for manually assembling the inner assembly.

[0003] The assembly process of internal components generally involves two steps: first, placing the tapered rollers into the pockets of the cage; and second, placing the inner ring into the cage. In the past, the tapered rollers were placed one by one into the pockets of the cage. Because the small-end diameter of the tapered rollers is small, they are unstable in the pockets. Often, as the tapered rollers are placed, the previous ones slip out of the pocket, resulting in low assembly efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of the prior art and provide an assembly fixture for the internal components of tapered roller bearings. It can solve the problems of instability of tapered rollers and low assembly efficiency during the assembly of internal components of small and medium-sized tapered roller bearings.

[0005] The purpose of this utility model is achieved as follows: an assembly fixture for internal components of tapered roller bearings, comprising a worktable, a support frame, and a roller guide plate; wherein,

[0006] The workbench includes four legs, a workbench plate fixed to the top of the four legs, and a support plate fixed to the middle of the four legs and parallel to the workbench plate; a through hole is opened in the center of the workbench plate.

[0007] The support frame includes a base tray, a telescopic support column, a through-hole platform, and four clamping plates. The base tray is fixed to the center of the top surface of the support plate of the workbench. The telescopic support column is fixed to the center of the top surface of the base tray. The through-hole platform is fixed to the top of the telescopic support column. The diameter of the through-hole platform is adapted to the diameter of the through hole on the workbench, so that the through-hole platform is inserted into the through hole of the workbench. A screw is fixed to the center of the top surface of the through-hole platform, and four cross-shaped guide grooves leading to the outer diameter surface of the through-hole platform are opened around the screw. Each of the four clamping plates is installed in the four guide grooves one-to-one by a slider. The inner surface of each clamping plate is an inverted conical arc surface adapted to the outer surface of the retainer.

[0008] The roller guide disc is shorter than the height of the cage. The diameter of the roller guide disc is adapted to the inner diameter of the small end ring of the cage. A threaded blind hole is opened in the center of the bottom surface of the roller guide disc so that the roller guide disc can be installed on the screw of the support frame. Multiple guide grooves are evenly distributed on the outer circumference of the roller guide disc, which correspond one-to-one with multiple pockets on the cage. The plane of each guide groove is an arc shape with a radius adapted to the large end radius of the tapered roller.

[0009] The aforementioned assembly fixture for the inner components of tapered roller bearings includes a guide groove with an inverted T-shaped cross-section and a slider with an inverted T-shaped cross-section that matches the guide groove.

[0010] The features of the assembly fixture for the internal components of tapered roller bearings of this utility model are:

[0011] 1. The tapered rollers are guided into the cage pockets through the guide grooves of the roller guide plate, which facilitates the installation of the tapered rollers and prevents them from slipping, tipping over, or bumping. This also avoids damage to the outer surface of the tapered rollers during the assembly process.

[0012] 2. The roller guide plate is connected by a screw, which can adjust the position of the roller guide plate in the inner cavity of the cage. This allows the outer surface of the tapered roller to have more support space during assembly, making the tapered roller assembly process more stable.

[0013] 3. The cross-shaped guide groove on the top surface of the through-hole platform allows the clamping plate to move freely within the guide groove, which can be adapted to the assembly of internal components of different sizes, covering the inner diameter range of bearings from 10mm to 120mm.

[0014] 4. The support frame is made of plastic, which is lightweight and easy to process. The entire assembly fixture occupies a small area, is simple to operate, and is easy to carry, making it suitable for manual assembly of small batches of products.

[0015] 5. The assembly fixture of this utility model is suitable for manual assembly of small batches of products, and can also be connected to motor drive devices, gear transmission devices, clamping robots, etc., for assembly of components in batch production. Attached Figure Description

[0016] Figure 1 This is a perspective view of the assembly fixture for the internal components of a tapered roller bearing according to this utility model.

[0017] Figure 2 This is a front view of the assembly fixture for the internal components of a tapered roller bearing according to this utility model.

[0018] Figure 3 This is a front view of the assembly tooling of this utility model after the roller guide disc is installed on the support frame;

[0019] Figure 4 This is a top view of the assembly tooling of this utility model after the roller guide disc is installed on the support frame;

[0020] Figure 5 This is a perspective view of the clamping plate fixed on the slider in the assembly tooling of this utility model;

[0021] Figure 6 This is a top view of the assembly tooling of this utility model during the installation of the internal components of a tapered roller bearing.

[0022] Figure 7 This is a perspective view of the assembly tooling used in this utility model for installing the internal components of a tapered roller bearing. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Please see Figures 1 to 5 The present invention relates to an assembly fixture for internal components of tapered roller bearings, comprising a worktable 1, a support frame 2, four clamping plates 3, and a roller guide plate 4.

[0025] The workbench 1 includes four legs 11, a workbench plate 10 fixed to the top of the four legs 11, and a support plate 12 fixed to the middle of the four legs 11 and parallel to the workbench plate 10; a through hole with a diameter of 120cm is opened in the center of the workbench plate 10.

[0026] The support frame 2 is installed on the support plate 12 of the workbench 1. The support frame 2 includes a bottom tray 20, a telescopic support column 21, a through-hole platform 22, and four clamping plates 26. The bottom tray 20 is fixed to the center of the top surface of the support plate 12 of the workbench 1. The telescopic support column 21 is fixed to the center of the top surface of the bottom tray 20. The through-hole platform 22 is fixed to the top of the telescopic support column 21. The diameter of the through-hole platform 22 is adapted to the diameter of the through hole on the workbench plate 10, so that the through-hole platform 22 is inserted into the through hole of the workbench plate 10. A screw 23 is fixed to the center of the top surface of the through-hole platform 22, and four cross-shaped guide grooves 24 are opened around the screw 23 and lead to the outer diameter surface of the through-hole platform 22. The cross-section of the guide grooves 24 is inverted T-shaped.

[0027] Each of the four clamping plates 3 is installed in one-to-one with a slider 30 within one of the four guide grooves 24. The cross-section of the slider 30 is also an inverted T-shape adapted to the guide groove 24. The inner surface of each clamping plate 3 is an inverted conical arc surface adapted to the outer surface of the retainer 51. The diameter of the adjustment circle of the four clamping plates 3 ranges from 10cm to 120cm, which is used to place the retainer 51 and clamp and fix the retainer 51.

[0028] The roller guide 4 is shorter than the height of the cage 51. The diameter of the roller guide 4 matches the inner diameter of the small end ring of the cage. A threaded blind hole is formed in the center of the bottom surface of the roller guide 4, allowing the roller guide 4 to be mounted on the screw 23 of the support frame 2. Multiple guide grooves 40 are evenly distributed around the outer circumference of the roller guide 4, corresponding one-to-one with multiple pockets on the cage 51. The plane of each guide groove 40 is an arc shape with a radius matching the large end radius of the tapered roller 52. The roller guide 4 guides the tapered roller 52 into the pockets of the cage 51.

[0029] Please see again Figure 6 and Figure 7 When assembling the internal components of a tapered roller bearing using the assembly fixture of this utility model, the following steps are included:

[0030] S1. By adjusting the telescopic support column 21 in the support frame 2, the top surface of the through hole platform 22 is made flush with the top surface of the workbench plate 10 of the workbench 1.

[0031] S2. Adjust the position of the four clamping plates 3 according to the outer diameter of the small end of the retainer 51, that is, move the slider 30 at the bottom of the clamping plate 3 in the corresponding guide groove 24.

[0032] S3. Place the retainer 51 with its small end facing down on the top surface of the through-hole platform 22, and place the four clamping plates 3 against the outer surface of the retainer 51 to clamp and fix the retainer 51 (see...). Figure 6 );

[0033] S4. Connect the roller guide plate 4 to the screw 23 on the through hole platform 22, and adjust the multiple guide grooves 40 on the roller guide plate 4 to align with the multiple pockets on the cage 51 one by one according to the height of the cage 51, and adjust the height of the roller guide plate 4 to the middle position of the cage 51.

[0034] S5. Insert multiple tapered rollers 52 into the multiple guide grooves 40 of the guide plate 4 one by one from top to bottom, so that the multiple tapered rollers 52 enter the multiple pockets on the cage 51 one by one.

[0035] S6. First, insert the small end of the bearing inner ring 53 downwards into the inside of the multiple tapered rollers 52 and press it down until the small end face of the bearing inner ring 53 reaches the top surface of the roller guide plate 4, so that the raceway surface of the bearing inner ring 53 is basically in contact with the inner surface of the tapered rollers 52. Then, move the slider 30 at the bottom of the four clamping plates 3 radially outwards to release the cage 51 from the clamping of the four clamping plates 3. Then, gently pull the cage 51 upwards with force so that the multiple tapered rollers 52 are completely inserted into the multiple pockets of the cage 51 one by one, and the bearing inner ring 53 and the cage 51 are completely engaged. At this point, the assembly of the bearing inner components is completed.

[0036] The above embodiments are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. An assembly fixture for an internal component of a tapered roller bearing, comprising a worktable, a support frame, and a roller guide plate; characterized in that, The workbench includes four legs, a workbench plate fixed to the top of the four legs, and a support plate fixed to the middle of the four legs and parallel to the workbench plate; a through hole is opened in the center of the workbench plate. The support frame includes a base tray, a telescopic support column, a through-hole platform, and four clamping plates. The base tray is fixed to the center of the top surface of the support plate of the workbench. The telescopic support column is fixed to the center of the top surface of the base tray. The through-hole platform is fixed to the top of the telescopic support column. The diameter of the through-hole platform is adapted to the diameter of the through hole on the workbench, so that the through-hole platform is inserted into the through hole of the workbench. A screw is fixed to the center of the top surface of the through-hole platform, and four cross-shaped guide grooves leading to the outer diameter surface of the through-hole platform are opened around the screw. Each of the four clamping plates is installed in the four guide grooves one-to-one by a slider. The inner surface of each clamping plate is an inverted conical arc surface adapted to the outer surface of the retainer. The roller guide disc is shorter than the height of the cage. The diameter of the roller guide disc is adapted to the inner diameter of the small end ring of the cage. A threaded blind hole is opened in the center of the bottom surface of the roller guide disc so that the roller guide disc can be installed on the screw of the support frame. Multiple guide grooves are evenly distributed on the outer circumference of the roller guide disc, which correspond one-to-one with multiple pockets on the cage. The plane of each guide groove is an arc shape with a radius adapted to the large end radius of the tapered roller.

2. The assembly fixture for the inner components of a tapered roller bearing according to claim 1, characterized in that, The cross-section of the guide groove is inverted T-shaped, and the cross-section of the slider is also inverted T-shaped to match the guide groove.

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