A bearing shell detection jig and bearing shell detection system

Abstract

The utility model embodiment provides a kind of bearing bush detection fixture and bearing bush detection system, it is related to bearing bush detection technical field, the bearing bush detection fixture includes base, at least one clamping unit and at least two limit pieces, base is used to with the concentricity setting of roundness gauge's turntable, clamping unit is located on base, clamping unit is equipped with at least two radial positioners and clamping assembly, two radial positioners are oppositely set along the radial of base, clamping assembly is located between two radial positioners, the two sides of each clamping unit are spaced apart and are provided with one limit piece along the radial of base, the two ends of the bearing bush to be detected respectively with corresponding two limit pieces abut, and the bearing bush to be detected is clamped between two radial positioners and clamping assembly.The utility model embodiment establishes unified reference by the concentricity setting of base and roundness gauge turntable, solves the problem that the bearing bush to be detected is difficult to quickly and accurately position, improves detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bearing inspection technology, and in particular to a bearing inspection fixture and bearing inspection system. Background Technology

[0002] As a key mechanical component, the straightness and parallelism accuracy of the inner and outer walls of the bearing directly affect the operational stability and lifespan of the equipment.

[0003] In the existing technology, a roundness tester is usually used to check the above-mentioned form and position tolerances of the bearing bush. However, since the bearing bush is an incomplete arc structure, its center position needs to be adjusted separately each time it is clamped so that it coincides with the rotation center of the roundness tester's turntable. This process depends on the operator's experience and is extremely time-consuming, resulting in low testing efficiency. Utility Model Content

[0004] This utility model provides a bearing inspection fixture and a bearing inspection system to solve the technical problems of difficulty in locating the bearing to be inspected and low inspection efficiency in related technologies.

[0005] In a first aspect, this utility model provides a bearing bush testing fixture, which includes a base for being concentrically set with the turntable of a roundness meter; At least one clamping unit is disposed on the base. The clamping unit includes at least two radial positioning members and a clamping assembly. The two radial positioning members are arranged opposite each other along the radial direction of the base, and the clamping assembly is disposed between the two radial positioning members. At least two limiting members are provided, and each clamping unit has a limiting member arranged radially along the base on both sides at intervals; The two ends of the bearing to be tested abut against the two corresponding limiting members, and the bearing to be tested is clamped between the two radial positioning members and the clamping assembly.

[0006] In some embodiments, the clamping assembly is an elastic clamping assembly.

[0007] In some embodiments, the clamping assembly includes: A locking slider is provided, wherein the base is provided with a slide rail in the radial direction, and the locking slider is slidably disposed on the slide rail; A locking knob is threadedly connected to the locking slider to secure the locking slider to the slide rail when tightened; The gripper is connected to the locking slider via an elastic element, and the gripper is used to clamp the bearing to be tested from the radial outside under the drive of the elastic element.

[0008] In some embodiments, the elastic element is a spring, and the two ends of the spring are respectively connected to the locking slider and the gripper.

[0009] In some embodiments, the gripping surface of the gripper is provided with a U-shaped groove.

[0010] In some embodiments, the base includes: A substrate, wherein the center of the substrate is provided with a central hole for concentric connection with the turntable of the roundness tester; Two clamping and positioning blocks are provided for each clamping unit. The two clamping and positioning blocks are symmetrically arranged on the base plate and located on both sides of the slide rail, respectively, for mounting the radial positioning component.

[0011] In some embodiments, the limiting member includes a limiting step for receiving the end face of the bearing to be tested.

[0012] In some embodiments, each of the radial locators is a cylindrical structure.

[0013] In some embodiments, the number of clamping units is three, and the three clamping units are evenly distributed along the circumference of the base.

[0014] Secondly, this utility model embodiment also provides a bearing detection system, which includes the aforementioned bearing detection fixture.

[0015] The beneficial effects of the technical solution provided by this utility model include: This utility model provides a bearing bush testing fixture and a bearing bush testing system. The bearing bush testing fixture includes a base, at least one clamping unit, and at least two limiting members. The base is concentrically arranged with the turntable of a roundness meter. The clamping unit is disposed on the base and has at least two radial positioning members and a clamping assembly. The two radial positioning members are arranged opposite each other along the radial direction of the base, and the clamping assembly is disposed between the two radial positioning members. Each clamping unit has a limiting member arranged radially along the base on both sides at intervals. The two ends of the bearing bush to be tested abut against the corresponding two limiting members, and the bearing bush to be tested is clamped between the two radial positioning members and the clamping assembly. This utility model embodiment establishes a unified benchmark by concentrically setting the base and the roundness tester turntable. It uses the limiting parts on both sides to position the bearing to be tested, and coordinates with the radially positioned parts and clamping components to achieve flexible clamping from the inside and outside, forming a complete set of rapid positioning test fixtures. This transforms the traditional dynamic alignment process that relies on manual experience into a rapid and repeatable positioning operation guaranteed by the test fixture structure, solving the problem of the bearing to be tested being difficult to position quickly and accurately, and improving the testing efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a bearing bush testing fixture provided in an embodiment of the present utility model; Figure 2 A schematic diagram of the structure of a clamping assembly provided in an embodiment of this utility model; Figure label: 1. Base; 11. Slide rail; 12. Base plate; 121. Center hole; 13. Clamping and positioning block; 2. Clamping unit; 21. Radial positioning element; 22. Clamping assembly; 221. Locking slider; 222. Locking knob; 223. Gripper; 2231. U-shaped groove; 224. Elastic element; 3. Limiting component; 31. Limiting step; 4. Bearing to be tested. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] This utility model provides a bearing detection fixture and a bearing detection system, which can solve the technical problems of difficulty in locating the bearing to be detected and low detection efficiency in related technologies.

[0020] See Figure 1As shown in the figure, an embodiment of the present invention provides a bearing bush testing fixture, which includes a base 1, at least one clamping unit 2, and at least two limiting members 3. The base 1 is arranged concentrically with the turntable of the roundness tester. The clamping unit 2 is disposed on the base 1. The clamping unit 2 is provided with at least two radial positioning members 21 and a clamping assembly 22. The two radial positioning members 21 are arranged opposite each other along the radial direction of the base 1. The clamping assembly 22 is disposed between the two radial positioning members 21. Each clamping unit 2 has a limiting member 3 arranged radially along the base 1 on both sides at intervals. The two ends of the bearing bush 4 to be tested abut against the corresponding two limiting members 3, and the bearing bush 4 to be tested is clamped between the two radial positioning members 21 and the clamping assembly 22. This utility model embodiment establishes a unified benchmark by concentrically setting the base 1 and the roundness tester turntable. The bearing shell 4 to be tested is positioned by using the limiting parts 3 on both sides. With the help of the radial positioning parts 21 and the clamping components 22 arranged opposite to each other, flexible clamping is achieved from the inside and outside, forming a complete set of rapid positioning test fixtures. This transforms the traditional dynamic alignment process that relies on manual experience into a rapid and repeatable positioning operation guaranteed by the test fixture structure, solving the problem of the bearing shell to be tested being difficult to position quickly and accurately, and improving the testing efficiency.

[0021] This utility model provides a bearing bush testing fixture, which includes a base, at least one clamping unit, and at least two limiting members. This utility model establishes a unified benchmark by concentrically positioning the base and the roundness meter turntable. The limiting members on both sides are used to position the bearing bush to be tested. Combined with the radially positioned members and clamping components arranged oppositely, flexible clamping is achieved from the inside and outside, forming a complete and rapid positioning testing fixture. This transforms the traditional dynamic alignment process, which relies on manual experience, into a rapid and repeatable positioning operation guaranteed by the fixture structure. This solves the problem of difficult and rapid accurate positioning of the bearing bush to be tested, and improves testing efficiency.

[0022] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2As shown, the clamping assembly 22 is an elastic clamping assembly. In this embodiment of the invention, the clamping assembly 22 adopts an elastic clamping design, providing continuous and buffered clamping force, avoiding workpiece deformation or surface damage caused by over-positioning or uneven clamping force in traditional rigid clamping, thereby ensuring the authenticity and accuracy of the test data and improving measurement precision. Simultaneously, the elastic clamping assembly 22 enables rapid clamping and loosening; the bearing shell 4 to be tested can be inserted or removed with a simple pull. After loosening, the clamping assembly 22 automatically tightens, significantly reducing adjustment and fixing time, making it particularly suitable for batch testing scenarios involving multiple parts and multiple workstations, and significantly improving testing efficiency. Furthermore, this structure separates the application of clamping force from the locking function. After the locking slider 221 is independently fixed by the locking knob 222, the clamping force is independently maintained by the elastic clamping component. This ensures both the flexibility and adaptability of the clamping, as well as the overall rigidity and stability of the clamping system during the testing process. It effectively prevents loosening caused by vibration, improves the reliability of the fixture, and facilitates the maintenance and replacement of the elastic clamping component. This achieves improvements in testing accuracy, operational efficiency, and system stability.

[0023] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the clamping assembly 22 includes a locking slider 221, a locking knob 222, and a gripper 223. The base 1 has a radially arranged slide rail 11. The locking slider 221 is slidably mounted on the slide rail 11. The locking knob 222 is threadedly connected to the locking slider 221 to fix the locking slider 221 to the slide rail 11 when tightened. The gripper 223 is connected to the locking slider 221 via an elastic element 224. The gripper 223 is used to clamp the bearing shell 4 to be tested from the radially outer side under the drive of the elastic element 224. In this embodiment, tightening the locking knob 222 lifts the locking slider 221, locking it in place. The gripper 223's movement is controlled by the force of the elastic element 224. Pulling the gripper backward increases the space for the bearing shell 4 to be tested; releasing it clamps and fixes the bearing shell 4 to be tested. The radial position of the gripper 223 can be quickly and continuously adjusted, and the position is rigidly fixed by the threaded connection between the locking knob 222 and the locking slider 221, ensuring stability during the inspection process. At the same time, the gripper 223 is connected to the locking slider 221 through the elastic element 224, which can provide a continuous and flexible clamping force that can adapt to the workpiece size tolerance when clamping the bearing shell 4 to be inspected. This effectively prevents workpiece deformation and surface damage caused by over-positioning or rigid impact, and significantly improves clamping efficiency and ease of operation. Finally, under the premise of ensuring inspection accuracy and reliability, the batch rapid inspection of multiple positions and multiple workpieces of the bearing shell 4 to be inspected is realized.

[0024] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, the elastic element 224 is a spring, and its two ends are connected to the locking slider 221 and the gripper 223, respectively. In this embodiment of the invention, by connecting the two ends of the spring to the locking slider 221 and the gripper 223, an independent flexible transmission mechanism is formed. When the locking slider 221 is fixed on the slide rail 11, the spring becomes the only force-bearing medium between the locking slider 221 and the gripper 223, which can adapt to the outer diameter of the bearing 4 to be inspected and provide a uniform radial clamping force. While ensuring the positioning accuracy of the workpiece, it effectively prevents clamping deformation, and is particularly suitable for batch inspection of workpieces with slight dimensional fluctuations.

[0025] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the clamping surface of the gripper 223 is provided with a U-shaped groove 2231. In this embodiment of the invention, the shapes of both sides of the clamping surface of the gripper 223 form precise line contact or surface contact with the outer arc surface of the bearing 4 to be tested, which significantly improves the stability and uniformity of the clamping. By providing the U-shaped groove 2231 on the clamping surface of the gripper 223, the local pressure is reduced, avoiding indentations or damage on the surface of the bearing 4 to be tested, thus ensuring the surface quality of the bearing 4 to be tested.

[0026] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the base 1 includes a base plate 12 and two clamping and positioning blocks 13 corresponding to each clamping unit 2. The base plate 12 has a central hole 121 at its center for concentric connection with the turntable of the roundness instrument. The two clamping and positioning blocks 13 are symmetrically arranged on the base plate 12 and located on both sides of the slide rail 11, for mounting the radial positioning member 21. In this embodiment of the invention, by configuring two clamping and positioning blocks 13 symmetrically arranged on both sides of the slide rail 11 for each clamping unit 2, and combining them with the base plate 12 with the central hole 121, a stable modular positioning structure is constructed. This layout ensures that the radial positioning components 21 of each clamping unit 2 are precisely installed based on the same center reference, which not only guarantees the uniformity of the positioning reference when multiple bearing shells 4 are inspected, but also prevents interference between the inspection stations. Furthermore, the separate clamping and positioning blocks provide independent rigid support for each station, effectively dispersing the clamping stress. While ensuring positioning accuracy, it improves the overall stability and load-bearing capacity of the fixture, making it particularly suitable for the working conditions of parallel inspection of multiple workpieces. At the same time, the split design of the base plate facilitates processing, maintenance, and installation.

[0027] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the limiting member 3 includes a limiting step 31, which is used to receive the end face of the bearing shell 4 to be tested. In this embodiment of the invention, by setting the limiting step 31 on the limiting member 3, a precise positioning reference is provided for the side of the bearing shell 4 to be tested. This structure can effectively limit the displacement that the bearing shell 4 may generate during the testing process, ensuring the consistency of its axial position, thereby guaranteeing the accuracy of parallelism testing. The design of the limiting step not only simplifies the operation process and enables rapid positioning and clamping of the bearing shell 4 to be tested, improving testing efficiency, but its rigid contact characteristics also avoid measurement errors caused by flexible support, significantly improving the reliability and repeatability of the test results.

[0028] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, each of the radial positioning elements 21 is a cylindrical structure. In this embodiment of the invention, by designing the radial positioning element 21 as a cylindrical structure, it forms a stable and reliable line contact with the inner arc surface of the bearing shell 4 to be tested. This contact method can provide a precise radial positioning reference, ensuring that the center of the bearing shell 4 to be tested quickly coincides with the center of the fixture, and can effectively avoid interference or over-positioning problems that may be caused by surface contact.

[0029] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, there are three clamping units 2, which are evenly distributed along the circumference of the base 1. In this embodiment of the invention, by evenly distributing the three clamping units 2 along the circumference of the base 1, the working space of the roundness meter turntable is fully utilized, enabling parallel detection of three different positions in a single clamping operation. This layout not only ensures that the center of mass of the fixture coincides with the center of rotation, guaranteeing dynamic balance stability during high-speed rotation, but also forms a stable three-point positioning system through a 120-degree evenly distributed structure, effectively improving detection efficiency and greatly enhancing the comparability of detection data and the consistency of batch detection.

[0030] This utility model embodiment also provides a bearing bush testing system, including the aforementioned bearing bush testing fixture. The bearing bush testing fixture includes a base 1, at least one clamping unit 2, and at least two limiting members 3. The base 1 is arranged concentrically with the turntable of the roundness tester. The clamping unit 2 is disposed on the base 1. The clamping unit 2 is provided with at least two radial positioning members 21 and a clamping assembly 22. The two radial positioning members 21 are arranged opposite each other along the radial direction of the base 1. The clamping assembly 22 is disposed between the two radial positioning members 21. Each clamping unit 2 has a limiting member 3 arranged radially along the base 1 on both sides at intervals. The two ends of the bearing bush 4 to be tested abut against the corresponding two limiting members 3, and the bearing bush 4 to be tested is clamped between the two radial positioning members 21 and the clamping assembly 22. This utility model embodiment establishes a unified benchmark by concentrically setting the base 1 and the roundness tester turntable. The bearing shell 4 to be tested is positioned by using the limiting parts 3 on both sides. With the help of the radial positioning parts 21 and the clamping components 22 arranged opposite to each other, flexible clamping is achieved from the inside and outside, forming a complete set of rapid positioning test fixtures. This transforms the traditional dynamic alignment process that relies on manual experience into a rapid and repeatable positioning operation guaranteed by the test fixture structure, solving the problem of the bearing shell to be tested being difficult to position quickly and accurately, and improving the testing efficiency.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A bearing shell detection jig, characterized by, include: Base (1), the base (1) is used to be concentrically set with the turntable of the roundness tester; At least one clamping unit (2) is disposed on the base (1). The clamping unit (2) includes at least two radial positioning members (21) and a clamping assembly (22). The two radial positioning members (21) are arranged opposite each other in the radial direction of the base (1), and the clamping assembly (22) is disposed between the two radial positioning members (21). At least two limiting members (3), and each clamping unit (2) has a limiting member (3) arranged radially along the base (1) on both sides at intervals. The two ends of the bearing shell (4) to be tested abut against the two corresponding limiting members (3), and the bearing shell (4) to be tested is clamped between the two radial positioning members (21) and the clamping assembly (22).

2. The bearing bush testing fixture according to claim 1, characterized in that: The clamping assembly (22) is an elastic clamping assembly.

3. A bearing shell detection jig according to claim 2, wherein The clamping assembly (22) includes: Locking slider (221), the base (1) is provided with a slide rail (11) in the radial direction, and the locking slider (221) is slidably disposed on the slide rail (11); A locking knob (222) is threadedly connected to the locking slider (221) to secure the locking slider (221) to the slide rail (11) when tightened. The gripper (223) is connected to the locking slider (221) via an elastic element (224). The gripper (223) is used to clamp the bearing (4) to be tested from the radial outside under the drive of the elastic element (224).

4. The bearing bush testing fixture according to claim 3, characterized in that: The elastic element (224) is a spring, and the two ends of the spring are connected to the locking slider (221) and the gripper (223) respectively.

5. A bearing shell detection jig according to claim 3, wherein: The gripping surface of the gripper (223) is provided with a U-shaped groove (2231).

6. The bearing shell detection fixture of claim 3, wherein, The base (1) includes: The substrate (12) has a center hole (121) at its center for concentric connection with the turntable of the roundness instrument. Two clamping and positioning blocks (13) are provided for each clamping unit (2). The two clamping and positioning blocks (13) are symmetrically arranged on the base plate (12) and located on both sides of the slide rail (11) respectively, for mounting the radial positioning member (21).

7. The bearing shell detection fixture of claim 1, wherein, The limiting member (3) includes: A limiting step (31) is used to receive the end face of the bearing (4) to be tested.

8. The bearing shell detection fixture of claim 1, wherein: Each of the radial positioning elements (21) is a cylindrical structure.

9. A bearing bush testing fixture according to claim 8, characterized in that: The number of clamping units (2) is three, and the three clamping units (2) are evenly distributed along the circumferential direction of the base (1).

10. A bearing shell detection system characterized in that, Includes a bearing inspection fixture as described in any one of claims 1-9.

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