Bearing ring precision detection device

Abstract

The utility model discloses bearing ring precision detection device, including work table, be rotatively arranged with the bearing station on the work table, wherein the bearing station is swinged and is provided with the prepositioning assembly on, and the prepositioning assembly includes: the movable block is embedded in the middle part of bearing station, the movable block is swinged and is arranged along the longitudinal, the movable block upper end face is along the circumferential interval and is provided with a plurality of sleeves, the sleeve is swinged and is inserted with the plug -in rod in, the end part that the plug -in rod extends out the sleeve is provided with the locating post, still be provided with the scale line on the plug -in rod outer wall, the utility model discloses through setting up the special prepositioning assembly on the bearing station, namely embedding the movable block that can be swinged and is longitudinal in the middle part of bearing station, and setting up multiple sets of sleeve and plug -in rod structure that distribute circumferentially on it, so that the locating post of plug -in rod end part can contact bearing ring inner wall from the inside, realizes the center prepositioning with workpiece inner hole as the reference, has reduced the initial clamping eccentricity significantly, thereby has improved the measurement accuracy of roundness, coaxial degree and other key parameters.

Description

Technical Field

[0001] This utility model belongs to the field of bearing ring production technology, and in particular relates to a bearing ring precision testing device. Background Technology

[0002] In the bearing manufacturing process, the bearing ring, as a core component, directly affects the operational stability of the entire machine due to its geometric accuracy. Among these parameters, the roundness of the inner and outer rings are key indicators for quality control.

[0003] In existing technologies, devices for detecting the roundness of bearing rings typically only include a clamping mechanism and a detection unit. Due to the lack of a dedicated pre-positioning component, the workpiece is prone to initial eccentricity when placed on the bearing platform. Even if it is subsequently clamped by a fixture, the center misalignment caused by the clamping deviation cannot be eliminated, resulting in false runout signals during the detection process, which seriously affects the measurement accuracy of key parameters such as roundness and coaxiality. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution: This utility model provides a bearing ring precision testing device, including: A workbench, on which a support platform is rotatably mounted, and a pre-positioning component is movably mounted on the support platform, the pre-positioning component comprising: A movable block is embedded in the middle of the support platform. The movable block is movably arranged in the longitudinal direction. Multiple sleeves are arranged at intervals along the circumference on the upper surface of the movable block. Insert rods are movably inserted into the sleeves. A positioning post is provided at the end of the insert rod extending out of the sleeve. Scale lines are also provided on the outer wall of the insert rod. With the movable block raised, adjust the length of the insertion rod extending from the sleeve so that the positioning pin abuts against the inner wall of the bearing ring to perform preliminary positioning of the bearing ring.

[0005] As a preferred embodiment of the above technical solution, the support platform is further provided with a clamping assembly, the clamping assembly including a plurality of grooves spaced apart along the circumference of the support platform, a driving component three is provided in the groove, the output end of the driving component three faces the center of the support platform and is fixedly provided with a clamping block.

[0006] As a preferred embodiment of the above technical solution, it also includes a frame, on which a detection component is provided at a position corresponding to the upper position of the support platform. The detection component includes a driving component four, and a mounting bracket is fixedly connected to the output end of the driving component four. A bidirectional threaded rod is rotatably provided on the mounting bracket. A mounting ring is threaded on the opposite threaded section of the bidirectional threaded rod, and a detection component is provided at one end of the mounting ring that is far apart from the other.

[0007] As a preferred embodiment of the above technical solution, a second driving component is embedded in the support platform. The output end of the second driving component is fixedly connected to the movable block. The second driving component drives the movable block to move longitudinally, extending out of the support platform or retracting into the support platform.

[0008] As a preferred embodiment of the above technical solution, a driving component is fixedly installed inside the sleeve, and the output end of the driving component is fixedly connected to the end of the insertion rod located inside the sleeve.

[0009] The beneficial effects of this utility model are as follows: This invention features a dedicated pre-positioning component on the support platform. Specifically, a movable block that can move longitudinally is embedded in the center of the support platform, and multiple sets of circumferentially distributed sleeves and insert rods are installed on it. This allows the positioning pin at the end of the insert rod to contact the inner wall of the bearing ring from the inside, achieving pre-positioning of the center with the inner hole of the workpiece as the reference. This significantly reduces the initial clamping eccentricity, ensures the geometric center consistency during rotational testing, and thus improves the measurement accuracy of key parameters such as roundness and coaxiality.

[0010] The scale lines on the outer wall of the insert rod are calibrated and directly correspond to the inner diameter of the bearing ring being measured. Operators can quickly adjust the extension length of each insert rod by reading the scale value, so as to achieve rapid adaptation and visual positioning of bearing rings of different specifications without relying on external measuring tools, thus improving changeover efficiency and ease of operation. Attached Figure Description

[0011] Figure 1 The diagram shown is a front view of the detection device in the embodiment. Figure 2 The diagram shown is a top view of the support platform in the embodiment. Figure 1 ; Figure 3 The diagram shown is a top view of the support platform in the embodiment. Figure 2 ; Figure 4 The diagram shown is a partial cross-sectional view of the support platform in the embodiment; Figure 5 The diagram shown is a top view of the sleeve and insert rod assembly in the embodiment. Figure 6 The diagram shown is a structural schematic of the detection component in the embodiment; Reference numerals: 1. Bearing ring; 10. Worktable; 11. Equipment box; 20. Support platform; 22. Movable block; 23. Sleeve; 231. Drive component one; 24. Insert rod; 241. Scale line; 25. Positioning pin; 26. Drive component two; 30. Clamping assembly; 31. Groove; 32. Drive component three; 33. Clamping block; 40. Detection assembly; 41. Mounting bracket; 42. Bidirectional threaded rod; 43. Mounting ring; 44. Detection component. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0013] Example like Figure 1 As shown, Figure 1 The diagram shown is a front view of the detection device in the embodiment. This device includes: The workbench 10 and the frame are provided. A support platform 20 is rotatably mounted on the workbench 10, and a detection component 40 is mounted on the frame above the support platform 20. The support platform 20 is also equipped with a pre-positioning component and a clamping component 30.

[0014] The workbench 10 is equipped with an equipment box 11, which contains a motor. The output end of the motor is fixedly connected to the support platform 20 through a reducer, driving the support platform 20 to rotate.

[0015] like Figure 2 , Figure 3 , Figure 4 As shown, Figure 2 The diagram shown is a top view of the support platform in the embodiment. Figure 1 ; Figure 3 The diagram shown is a top view of the support platform in the embodiment. Figure 2 ; Figure 4 The diagram shown is a partial cross-sectional view of the support platform in the embodiment; The pre-positioning components include: The movable block 22 is embedded in the middle of the support platform 20. The movable block 22 is movably arranged in the longitudinal direction. Multiple sleeves 23 are arranged circumferentially on the upper surface of the movable block 22. Insert rods 24 are movably inserted in the sleeves 23. A positioning post 25 is provided at the end of the insert rod 24 that extends out of the sleeve 23. A scale line 241 is also provided on the outer wall of the insert rod 24. With the movable block 22 raised, the length of the adjusting rod 24 extending out of the sleeve 23 is adjusted so that the positioning pin 25 abuts against the inner wall of the bearing ring 1 to perform preliminary positioning of the bearing ring 1. This achieves center pre-positioning based on the inner hole of the bearing ring 1, significantly reducing initial clamping eccentricity, ensuring geometric center consistency during rotational testing, and improving the measurement accuracy of key parameters such as the roundness of the bearing ring 1.

[0016] In the raised state, the top surface of the movable block 22 is higher than the top surface of the support platform 20. The movable block 22 serves as the basic support platform for the pre-positioning component (e.g., Figure 3As shown), the liftable design facilitates the descent of the bearing ring 1 after positioning to avoid the inspection process. During descent, the insert rod 24 retracts into the sleeve 23 until it does not affect the descent process (e.g., Figure 2 (As shown).

[0017] In this embodiment, the sleeve 23, the insert rod 24 and the positioning post 25 are evenly distributed in three sets along the circumference to form a stable positioning circle and ensure centering. The scale line 241 on the insertion rod 24 is a calibrated inner diameter scale. Each scale value represents the inner diameter value of the bearing ring 1 that it participates in positioning when the insertion rod 24 is adjusted to the corresponding position. This enables rapid adaptation and visual positioning of bearing rings 1 of different specifications without relying on external measuring tools, thus improving changeover efficiency and ease of operation.

[0018] A second driving component 26 is embedded in the support platform 20. The output end of the second driving component 26 is fixedly connected to the movable block 22. The second driving component 26 drives the movable block 22 to move longitudinally, extending to the outside of the support platform 20 or retracting into the inside of the support platform 20.

[0019] The second driving component 26 is a pneumatic or hydraulic cylinder, which can drive the movable block 22 to move up and down.

[0020] Specifically, such as Figure 5 As shown, Figure 5 The diagram shown is a top view of the sleeve and insert rod assembly in the embodiment. A drive component 231 is fixedly installed inside the sleeve 23, and the output end of the drive component 231 is fixedly connected to the end of the insertion rod 24 located inside the sleeve 23.

[0021] The drive component 231 is an electric telescopic rod, which is built into the sleeve 23 and serves as the power source for the radial movement of the insertion rod 24, so that the insertion rod 24 can move and adjust along the axial direction of the sleeve 23 (i.e., the radial direction of the support platform 20).

[0022] like Figure 2 As shown, Figure 2 The diagram shown is a top view of the support platform in the embodiment. Figure 1 ; The clamping assembly 30 includes a plurality of grooves 31 spaced apart along the circumference of the support platform 20. A drive member 32 is disposed in the groove 31. The output end of the drive member 32 faces the center of the support platform 20 and is fixedly disposed with a clamping block 33.

[0023] In this embodiment, the driving component 32 is an electric telescopic rod, wherein four sets of grooves 31, driving component 32 and clamping block 33 are evenly arranged along the circumference of the support platform 20.

[0024] The drive component 32 moves the clamping block 33 radially inward from the outer periphery until it contacts and clamps the outer end face of the bearing ring 1, thereby clamping and fixing the bearing ring 1.

[0025] like Figure 6 As shown, Figure 6 The diagram shown is a structural schematic of the detection component in the embodiment; The detection component 40 includes a driving component four. The output end of the driving component four is fixedly connected to a mounting bracket 41. A bidirectional threaded rod 42 is rotatably mounted on the mounting bracket 41. A mounting ring 43 is threaded onto the opposite threaded section of the bidirectional threaded rod 42. A detection component 44 is provided at one end of the mounting ring 43 that is far apart from the other.

[0026] The top end face of the mounting ring 43 slides against the inner top wall of the mounting bracket 41.

[0027] Mounting bracket 41 provides support and guidance. The driving component drives the mounting bracket 41 to move longitudinally to adjust the detection position. The bidirectional threaded rod 42 contains two sections of threads with opposite directions of rotation (such as left-hand and right-hand threads), which serve as the driving core to realize the synchronous reverse movement of the two mounting rings 43. The two mounting rings 43 move closer or further away from each other as the bidirectional threaded rod 42 rotates, adjusting the distance between them to match bearing rings 1 of different diameters. The top of the mounting rings 43 slides against the inner top wall of the mounting bracket 41 to prevent rotation and retain only linear motion.

[0028] The detection component 44 is used for contact or non-contact detection of the roundness of the inner wall of the bearing ring 1, and can be a displacement sensor, laser probe, vision camera, probe, etc.; the driving component 4 is a cylinder or hydraulic cylinder.

[0029] Working principle: When this device is in use, the second driving component 26 is activated first, pushing the movable block 22 to move upward longitudinally until the top end face of the movable block 22 is higher than the top end face of the support platform 20, and enters the working position. Next, based on the inner diameter of the bearing ring 1 to be tested, the drive component 231 inside the sleeve 23 is activated, driving the insertion rod 24 to extend radially outward. The scale line 241 directly displays the current positioning inner diameter value, and ensures that the extension length of each insertion rod 24 is consistent. Then, the operator or automatic feeding mechanism places the bearing ring 1 to be tested and further adjusts the insertion rod 24 so that the positioning post 25 at its end contacts the inner wall of the bearing ring 1. Then, each of the three driving components 32 moves synchronously, driving the clamping block 33 to move radially inward from the groove 31 in the circumferential direction of the bearing platform 20 until the clamping block 33 presses against the outer end face of the bearing ring 1, thus achieving a firm clamping of the workpiece. After confirming that the clamping is in place, the first drive component 231 controls the insertion rod 24 to retract into the sleeve 23. Then, the second drive component 26 drives the movable block 22 to descend, so that it is completely retracted into the bearing platform 20 to avoid interference with subsequent detection actions. The driving component 4 in the detection assembly 40 first drives the mounting bracket 41 to move downward and adjust it to a suitable detection position. Then, the bidirectional threaded rod 42 rotates under the drive of the handwheel, driving the two mounting rings 43 to move, so that the detection components 44 at both ends are adjusted to fit or align with the detection position of the bearing ring 1. The motor inside the equipment box 11 drives the bearing platform 20 to rotate smoothly through the reducer, which in turn drives the clamped bearing ring 1 to rotate synchronously. During the rotation of the bearing platform 20, the detection component 44 continuously scans the inner wall of the bearing ring 1 and collects accuracy parameters such as roundness, coaxiality, and runout.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A bearing ring precision testing device, characterized in that, include: A workbench (10) is provided with a support platform (20) rotatably mounted on the workbench (10), wherein a pre-positioning component is movably mounted on the support platform (20), the pre-positioning component comprising: A movable block (22) is embedded in the middle of the support platform (20). The movable block (22) is movably arranged in the longitudinal direction. Multiple sleeves (23) are arranged at intervals along the circumference on the upper surface of the movable block (22). Insert rods (24) are movably inserted in the sleeves (23). A positioning post (25) is provided at the end of the insert rod (24) extending out of the sleeve (23). Scale lines (241) are also provided on the outer wall of the insert rod (24). With the movable block (22) in the raised state, adjust the length of the insertion rod (24) extending out of the sleeve (23) so that the positioning pin (25) abuts against the inner wall of the bearing ring (1) to perform preliminary positioning of the bearing ring (1).

2. The bearing ring precision testing device according to claim 1, characterized in that, The support platform (20) is also provided with a clamping assembly (30). The clamping assembly (30) includes a plurality of grooves (31) spaced apart along the circumference of the support platform (20). A driving component (32) is provided in the groove (31). The output end of the driving component (32) faces the center of the support platform (20) and is fixedly provided with a clamping block (33).

3. The bearing ring precision testing device according to claim 1, characterized in that, It also includes a frame, on which a detection component (40) is provided above the bearing platform (20). The detection component (40) includes a driving component four. The output end of the driving component four is fixedly connected to a mounting bracket (41). A bidirectional threaded rod (42) is rotatably provided on the mounting bracket (41). A mounting ring (43) is threaded on the opposite threaded section of the bidirectional threaded rod (42). A detection component (44) is provided at one end of the mounting ring (43) that is far apart from each other.

4. The bearing ring precision testing device according to claim 1, characterized in that, A second driving component (26) is embedded in the support platform (20). The output end of the second driving component (26) is fixedly connected to the movable block (22). The second driving component (26) drives the movable block (22) to move longitudinally, extending to the outside of the support platform (20) or retracting into the inside of the support platform (20).

5. The bearing ring precision testing device according to claim 1, characterized in that, A drive component (231) is fixedly installed inside the sleeve (23), and the output end of the drive component (231) is fixedly connected to the end of the plug rod (24) located inside the sleeve (23).

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