A roundness testing instrument for bearing intermediate ring production

Abstract

This utility model discloses a roundness testing instrument for bearing intermediate ring production, comprising a base plate, an electric push rod fixedly mounted at the center of the top of the base plate, support columns fixedly mounted at the four corners of the top of the base plate, a top plate fixedly mounted at the top of the support columns, a fixed seat fixedly mounted at the center of the top of the top plate, a rotating seat fixedly mounted at the top of the top plate, a rotating ring rotatably connected to the outer circumference of the rotating seat, a dial indicator mounted on the outer circumference of the rotating ring, a connecting rod fixedly mounted at the top of the electric push rod, a lifting sleeve mounted at the top of the connecting rod, and a through-slidable connection between the center of the fixed seat and the lifting sleeve. Rotating the rotating ring causes the dial indicator to measure along the bearing intermediate ring, and the roundness of the bearing intermediate ring is calculated by the difference in the values ​​displayed by the dial indicator. The measurement speed is fast and the measurement efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, specifically a roundness testing instrument for bearing intermediate ring production. Background Technology

[0002] The roundness of a bearing is one of its important geometric tolerances. If the roundness of the bearing's outer ring surface does not meet the standard, it will directly affect the bearing's rotational accuracy, vibration, noise, and other key indicators. It will also affect the bearing's clearance, stiffness, friction torque, and even its fatigue life and operational reliability. Therefore, the measurement and control of the roundness of the bearing's outer ring surface is a very important step, especially for high-tech bearings such as those used in military, railway, precision, and automotive industries, where the measurement of roundness is even more crucial.

[0003] Currently, factory inspections using coordinate measuring machines (CMMs) or roundness testers require specialized inspection personnel, are complex, slow, and inefficient, making them unsuitable for large-scale factory production. Furthermore, CMMs and roundness testers are expensive, resulting in high inspection costs.

[0004] Therefore, we propose a roundness testing instrument for the production of bearing intermediate rings. Utility Model Content

[0005] The purpose of this invention is to provide a roundness testing instrument for the production of bearing intermediate rings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a roundness testing instrument for the production of bearing intermediate rings, comprising a base plate, an electric push rod fixedly installed at the center of the top of the base plate, support columns fixedly installed at the four corners of the top of the base plate, a top plate fixedly installed at the top of the support columns, a fixed seat fixedly installed at the center of the top of the top plate, a rotating seat fixedly installed at the top of the top plate, a rotating ring rotatably connected to the outer circumferential surface of the rotating seat, a dial indicator provided on the outer circumferential surface of the rotating ring, a connecting long rod fixedly installed at the top of the electric push rod, a lifting sleeve provided at the top of the connecting long rod, a sliding connection between the center of the fixed seat and the lifting sleeve, a deflection bracket rotatably connected to the top of the fixed seat located outside the lifting sleeve, a deflection push rod rotatably connected to the top of the outer circumferential surface of the lifting sleeve located above the fixed seat, the top of the deflection push rod rotatably connected to the center of the deflection bracket, and a clamping block provided at the top of the deflection bracket.

[0007] Optionally, an adjustable connecting bracket is fixedly installed on the outer circumferential surface of the rotating ring, the dial indicator is fixedly installed on the top of the connecting bracket, and a testing roller is provided at the end of the dial indicator's testing head.

[0008] Optionally, the fixed seat, the rotating seat, and the rotating ring are arranged coaxially, and the height of the rotating seat is higher than the height of the fixed seat.

[0009] Optionally, the abutment block is rotatably connected to the top of the outer side of the deflection bracket, and the abutment block is provided with adjusting springs at both ends of the inner side of the deflection bracket, with the two adjusting springs symmetrically arranged on the side of the abutment block.

[0010] Optionally, the lifting sleeve is sleeved through the top of the connecting rod, and a lifting spring located below the lifting sleeve is sleeved on the outer circumferential surface of the connecting rod, and a nut located below the lifting spring is threadedly connected to the middle part of the connecting rod.

[0011] Optionally, the top of the lifting spring is abutted against the bottom of the lifting sleeve, and the bottom of the lifting spring is abutted against the top of the nut.

[0012] Optionally, the clamping block has a different double-layer structure than the factory's, and the clamping block has a clamping slot on the side away from the deflection push rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This roundness testing instrument for bearing intermediate ring production uses a clamping block to place the bearing intermediate ring on the clamping slot. An electric push rod is activated, causing the lifting sleeve to rise. This, in turn, causes the deflection push rod to push the deflection bracket, which in turn causes the clamping block to move outwards, securing it firmly against the bearing intermediate ring. Then, the rotating ring is rotated, causing a dial indicator to measure along the bearing intermediate ring. The roundness of the bearing intermediate ring is calculated by the difference in the dial indicator readings. The instrument offers fast measurement speed and high efficiency.

[0015] This roundness testing instrument for bearing intermediate ring production uses a nut and a lifting spring. When the electric push rod pushes the connecting rod upward, the lifting sleeve rises and pushes the deflection bracket and the clamping block to deflect and clamp the bearing intermediate ring. As the clamping block clamps the bearing intermediate ring, the lifting sleeve is buffered by compressing the lifting spring to prevent the electric push rod from pushing the connecting rod upward excessively. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a roundness testing instrument for bearing intermediate ring production according to the present invention;

[0017] Figure 2 This is a schematic diagram of the top plate of a roundness testing instrument for bearing intermediate ring production according to the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of an electric push rod for a roundness testing instrument used in the production of bearing intermediate rings according to this utility model;

[0019] Figure 4 This is a schematic diagram of the deflection bracket of a roundness testing instrument used in the production of bearing intermediate rings according to this utility model.

[0020] In the diagram: 1. Base plate; 2. Electric push rod; 3. Support column; 4. Top plate; 5. Fixed seat; 6. Rotating seat; 7. Rotating ring; 8. Dial indicator; 9. Detection roller; 10. Lifting sleeve; 11. Deflection bracket; 12. Deflection push rod; 13. Clamping block; 14. Adjusting spring; 15. Connecting rod; 16. Lifting spring; 17. Nut; 18. Connecting bracket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 This utility model provides a roundness testing instrument for bearing intermediate ring production, including a base plate 1, an electric push rod 2 fixedly installed at the center of the top of the base plate 1, support columns 3 fixedly installed at the four corners of the top of the base plate 1, a top plate 4 fixedly installed at the top of the support columns 3, a fixed seat 5 fixedly installed at the center of the top of the top of the top plate 4, a rotating seat 6 fixedly installed at the top of the top plate 4, a rotating ring 7 rotatably connected to the outer circumference of the rotating seat 6, a dial indicator 8 provided on the outer circumference of the rotating ring 7, a connecting rod 15 fixedly installed at the top of the electric push rod 2, a lifting sleeve 10 provided at the top of the connecting rod 15, the middle of the fixed seat 5 and the lifting sleeve 10 being slidably connected through, and a deflection support located outside the lifting sleeve 10 being rotatably connected to the top of the fixed seat 5. The top of the outer periphery of the frame 11 and the lifting sleeve 10 is rotatably connected to a deflection push rod 12 located above the fixed seat 5. The top of the deflection push rod 12 is rotatably connected to the middle of the deflection bracket 11. The top of the deflection bracket 11 is provided with a clamping block 13. By setting the clamping block 13, the bearing intermediate ring is placed on the clamping slot of the clamping block. The electric push rod 2 is started, which drives the lifting sleeve 10 to rise. This causes the deflection push rod 12 to push the deflection bracket 11 to drive the clamping block 13 to move outward, so that the clamping block 13 is pressed against the bearing intermediate ring. Then, the rotating ring 7 is rotated, so that the dial indicator 8 measures along the bearing intermediate ring. The roundness of the bearing intermediate ring is calculated by the difference of the value displayed by the dial indicator 8. The measurement speed is fast and the measurement efficiency is high.

[0023] An adjustable connecting bracket 18 is fixedly installed on the outer circumference of the rotating ring 7. The dial indicator 8 is fixedly installed on the top of the connecting bracket 18. A testing roller 9 is provided at the end of the testing head of the dial indicator 8.

[0024] The fixed base 5, the rotating base 6, and the rotating ring 7 are arranged on the same axis, and the height of the rotating base 6 is higher than the height of the fixed base 5.

[0025] The clamping block 13 is rotatably connected to the top of the outer side of the deflection bracket 11. Adjusting springs 14 are provided at both ends of the clamping block 13 located on the inner side of the deflection bracket 11. The two adjusting springs 14 are symmetrically arranged on the side of the clamping block 13.

[0026] The lifting sleeve 10 is sleeved through the top of the connecting rod 15. The outer circumference of the connecting rod 15 is fitted with a lifting spring 16 located below the lifting sleeve 10. The middle part of the connecting rod 15 is threaded with a nut 17 located below the lifting spring 16.

[0027] The top of the lifting spring 16 is pressed against the bottom of the lifting sleeve 10, and the bottom of the lifting spring 16 is pressed against the top of the nut 17. By setting the nut 17 and the lifting spring 16, when the electric push rod 2 pushes the connecting long rod 15 to rise, the lifting sleeve 10 rises and pushes the deflection bracket 11 and the clamping block 13 to deflect and clamp against the bearing intermediate ring. As the clamping block 13 clamps against the bearing intermediate ring, when the connecting long rod 15 continues to rise, the lifting sleeve 10 is buffered by compressing the lifting spring 16 to prevent the electric push rod 2 from pushing the connecting long rod 15 to rise excessively.

[0028] The clamping block 13 has a different double-layer structure than the factory, and the clamping block 13 has a clamping slot on the side away from the deflection push rod 12.

[0029] Working principle:

[0030] The bearing intermediate ring is placed on the clamping slot of the fastening block. The electric push rod 2 is started, which drives the lifting sleeve 10 to rise. This causes the deflection push rod 12 to push the deflection bracket 11 to drive the clamping block 13 to expand outward, so that the clamping block 13 is pressed against the bearing intermediate ring. Then the rotating ring 7 is rotated, so that the dial indicator 8 measures along the bearing intermediate ring. The roundness of the bearing intermediate ring is calculated by the difference of the value displayed by the dial indicator 8. When the electric push rod 2 pushes the connecting rod 15 to rise, the lifting sleeve 10 rises and pushes the deflection bracket 11 and the clamping block 13 to deflect and press against the bearing intermediate ring. As the clamping block 13 presses against the bearing intermediate ring, when the connecting rod 15 continues to rise, the lifting sleeve 10 is buffered by the compression lifting spring 16 to prevent the electric push rod 2 from pushing the connecting rod 15 to rise excessively.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roundness testing instrument for bearing intermediate ring production, comprising a base plate (1), characterized in that, An electric push rod (2) is fixedly installed at the center of the top of the base plate (1). Support columns (3) are fixedly installed at the four corners of the top of the base plate (1). A top plate (4) is fixedly installed at the top of the support columns (3). A fixed seat (5) is fixedly installed at the center of the top of the top plate (4). A rotating seat (6) is fixedly installed at the top of the top plate (4). A rotating ring (7) is rotatably connected to the outer circumference of the rotating seat (6). A dial indicator (8) is provided on the outer circumference of the rotating ring (7). A connecting rod (8) is fixedly installed at the top of the electric push rod (2). 15), the top of the connecting rod (15) is provided with a lifting sleeve (10), the middle part of the fixed seat (5) is slidably connected to the lifting sleeve (10), the top of the fixed seat (5) is rotatably connected to a deflection bracket (11) located outside the lifting sleeve (10), the top of the outer circumference of the lifting sleeve (10) is rotatably connected to a deflection push rod (12) located above the fixed seat (5), the top of the deflection push rod (12) is rotatably connected to the middle part of the deflection bracket (11), and the top of the deflection bracket (11) is provided with a pressing block (13).

2. The roundness testing instrument for bearing intermediate ring production according to claim 1, characterized in that, An adjustable connecting bracket (18) is fixedly installed on the outer circumference of the rotating ring (7). The dial indicator (8) is fixedly installed on the top of the connecting bracket (18). A detection roller (9) is provided at the end of the detection head of the dial indicator (8).

3. A roundness testing instrument for bearing intermediate ring production according to claim 1, characterized in that, The fixed seat (5), the rotating seat (6) and the rotating ring (7) are arranged on the same axis, and the height of the rotating seat (6) is higher than the height of the fixed seat (5).

4. A roundness testing instrument for bearing intermediate ring production according to claim 1, characterized in that, The abutment block (13) is rotatably connected to the top of the outer side of the deflection bracket (11). The abutment block (13) is provided with adjusting springs (14) at both ends of the inner side of the deflection bracket (11). The two adjusting springs (14) are symmetrically arranged on the side of the abutment block (13).

5. A roundness testing instrument for bearing intermediate ring production according to claim 1, characterized in that, The lifting sleeve (10) is sleeved through the top of the connecting rod (15), and a lifting spring (16) located below the lifting sleeve (10) is sleeved on the outer circumference of the connecting rod (15). A nut (17) located below the lifting spring (16) is threadedly connected to the middle part of the connecting rod (15).

6. A roundness testing instrument for bearing intermediate ring production according to claim 5, characterized in that, The top of the lifting spring (16) is abutted against the bottom of the lifting sleeve (10), and the bottom of the lifting spring (16) is abutted against the top of the nut (17).

7. A roundness testing instrument for bearing intermediate ring production according to claim 1, characterized in that, The clamping block (13) has a different double-layer structure than the factory, and the clamping block (13) has a clamping slot on the side away from the deflection push rod (12).

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