A bearing detection tooling table
By designing a bearing inspection fixture and utilizing multi-point contact measurement, the problems of low bearing inspection efficiency and reliance on human error in existing technologies have been solved, achieving high-precision and reliable thickness and flatness inspection.
Patent Information
- Application Number
- CN202521280550.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2035-06-20
Smart Images
Figure CN224470967U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a testing fixture, and more particularly to a bearing testing fixture. Background Technology
[0002] In industrial production and precision manufacturing, the geometrical accuracy (such as thickness) and surface form and position tolerances (such as flatness) of bearings are key indicators for measuring their quality, directly affecting the assembly accuracy, working performance, and service life of the workpiece. Therefore, accurate detection of workpiece thickness and surface flatness is crucial.
[0003] Currently, the thickness inspection and surface flatness judgment of workpieces mainly rely on manual measurement or contact measuring instruments (such as micrometers, vernier calipers, height gauges, etc.).
[0004] Operators typically use tools such as calipers and micrometers to manually measure the thickness at a limited number of points on the workpiece. This method is inefficient and difficult to perform high-frequency, large-sample-volume inspections.
[0005] Its measurement accuracy is highly dependent on the operator's skill level, proficiency, and attention to detail. Human errors (such as reading deviations, uneven pressure application, and insufficient representativeness of selected measurement points) are difficult to completely avoid, resulting in poor consistency and repeatability of test results. Especially in situations involving complex curved surfaces or requiring multi-point testing, human measurement errors are more likely to accumulate and amplify.
[0006] Some automated equipment (such as some coordinate measuring machines or dedicated thickness gauges) can provide contact measurement capabilities.
[0007] However, many traditional devices fail to adequately ensure the stability and levelness of the measuring base (operating table) before measurement, which may introduce systematic errors. More importantly, traditional contact measurements often rely on a single or a small number of contact points for detection. This point contact method makes it difficult to comprehensively reflect the overall thickness distribution of the workpiece, especially when the workpiece has slight curvature or uneven thickness, as single-point measurement data lacks representativeness. Utility Model Content
[0008] This application provides a bearing testing fixture to solve the problems existing in related technologies. The technical solution is as follows:
[0009] This application provides a bearing testing fixture, including:
[0010] An operating table with several through holes is placed above the workpiece.
[0011] Several support columns are arranged in a ring around the side of the operating table facing the workpiece, and the workpiece is located between the support columns.
[0012] At least three detection components are installed on the operating table through through holes. All three detection components are in contact with the workpiece surface to measure the distance between the workpiece and the operating table.
[0013] In one implementation,
[0014] The detection components include:
[0015] A dial indicator is installed on the operating table through a through hole. The dial indicator contacts the surface of the workpiece, and the workpiece is measured by the value displayed on the dial indicator.
[0016] In one implementation, it further includes:
[0017] The limiting component is set on the dial indicator. When the dial indicator is inserted into the through hole, the limiting component is located in the through hole and fits against the operating table.
[0018] In one implementation,
[0019] The cross-section of the limiting component is "T" shaped, and the shape of the vertical rod of the limiting component matches the shape of the through hole.
[0020] In one implementation,
[0021] The height of the support column is greater than the thickness of the workpiece.
[0022] In one implementation, it further includes:
[0023] Handles are located on both sides of the control panel.
[0024] In one implementation,
[0025] The dial indicator has a measuring head that fits against the workpiece surface when the dial indicator is inserted into the through hole.
[0026] In one implementation,
[0027] One of the through holes is the zero point. During measurement, one of the dial indicators is located in the through hole at the zero point.
[0028] The advantages or beneficial effects of the above technical solutions include at least the following:
[0029] Before use, ensure the balance of the operating table. The detection components detect values at different positions on the workpiece surface to determine the workpiece thickness. Different thickness shims are selected according to the different thicknesses of the workpiece. At the same time, the values of the detection components at different contact positions can also determine whether the workpiece surface is flat. Compared with traditional manual measurement, it is more accurate to ensure the precision of the workpiece.
[0030] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0031] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.
[0032] Figure 1 This is a schematic diagram of the structure of this utility model;
[0033] Figure 2 for Figure 1 Schematic diagram of the central control panel;
[0034] Figure 3 for Figure 1 A schematic diagram of the structure of the detection component;
[0035] 100. Control panel; 110. Handle; 120. Through hole;
[0036] 200. Support column;
[0037] 300. Detection component; 310. Dial indicator; 311. Measuring head; 320. Limiting component. Detailed Implementation
[0038] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0039] Figures 1-3 This diagram illustrates the structure of a bearing testing fixture according to an embodiment of this application. Figures 1-3 As shown, the testing fixture may include:
[0040] The operating table 100 has several through holes 120 and is positioned above the workpiece.
[0041] A number of support columns 200 are arranged in a ring around the side of the operating table 100 facing the workpiece, and the workpiece is located between the support columns 200.
[0042] At least three detection components 300 are disposed on the operating table 100 through through holes 120. All three detection components 300 are in contact with the workpiece surface to measure the distance between the workpiece and the operating table 100.
[0043] In this embodiment, during use, the workpiece is placed in a horizontal position, and the operating table 100 is placed above the workpiece. At this time, it is necessary to ensure that the operating table 100 is horizontal. The detection component 300 is inserted into the through hole 120. At least three detection components 300 are inserted and correspond to three points on the workpiece surface. The numbers from the three detection components 300 to the workpiece surface are read and averaged to detect the distance from the workpiece surface to the operating table 100. Thus, a suitable shim is selected according to the distance between the workpiece and the operating table.
[0044] Specifically, one of the through holes 120 is the zero point. Before inspecting the workpiece, a detection component 300 is inserted into the zero point. The detection component 300 at the zero point detects the distance from the operating table 100 to the table. After the detection component 300 at the zero point has finished its detection, the other three detection components 300 are inserted into the remaining through holes (the thickness of the workpiece and the thickness between the workpiece and the operating table can be obtained by the difference between the other three detection components 300 and the detection component 300 at the zero point). This allows for the selection of shims of different thicknesses, and the flatness of the workpiece surface can also be calculated based on the other detection components 300.
[0045] Before use, ensure the balance of the operating table 100. The detection component 300 detects the values at different positions on the workpiece surface to determine the thickness of the workpiece. Different thickness shims are selected according to the different thicknesses of the workpiece. At the same time, the values of the detection component 300 at different contact positions can also determine whether the workpiece surface is flat. This is more accurate than traditional manual measurement to ensure the precision of the workpiece.
[0046] Specifically, at least three detection components 300 are in contact with the workpiece surface, forming a surface at three points, thereby judging the distance from the workpiece surface to the operating table and judging the flatness of the workpiece surface. The more detection components 300 there are, the more accurate the detection values of the workpiece surface.
[0047] like Figure 1 and Figure 3 As shown, in one embodiment,
[0048] Detection component 300 includes:
[0049] Dial indicator 310 is installed on the operating table 100 through through hole 120. Dial indicator 310 is in contact with the workpiece, and the workpiece is measured by the value displayed by dial indicator 310.
[0050] In this embodiment, the distance between the workpiece and the worktable is detected by setting the dial indicator 310, and the flatness of the workpiece surface is determined by comparing the data measured by the dial indicator 310 at different positions. The thickness of the workpiece is determined by comparing the dial indicator 310 at different positions with the dial indicator 310 at the zero point, which facilitates the subsequent selection of a shim that is compatible with the workpiece.
[0051] like Figure 1 and Figure 3 As shown, in one embodiment, it further includes:
[0052] The limiting member 320 is set on the dial indicator 310. When the dial indicator 310 is inserted into the through hole 120, the limiting member 320 is located in the through hole 120 and is in contact with the operating table 100.
[0053] In this embodiment, by setting the limiting member 320, when the dial indicator 310 is inserted into the through hole 120 and when the dial indicator 310 contacts the workpiece, the limiting member 320 is slidable to insert the limiting member 320 into the through hole 120, ensuring that the dial indicator 310 is perpendicular to the operating table 100, and preventing the dial indicator 310 from shaking in the through hole 120, which would affect the accuracy of the detection value.
[0054] like Figure 3 As shown, in one embodiment,
[0055] The cross-section of the limiting member 320 is "T" shaped, and the vertical rod of the limiting member 320 is adapted to the shape of the through hole 120.
[0056] In this embodiment, the vertical rod of the limiting member 320 is located in the through hole 120, and the outer diameter of the vertical rod is the same as the diameter of the through hole 120, thereby ensuring that the limiting member 320 fills the through hole 120 and ensuring that the dial indicator 310 is perpendicular to the operating table 100.
[0057] like Figures 1-2 As shown, in one embodiment,
[0058] The height of the support column 200 is greater than the thickness of the workpiece.
[0059] In this embodiment, the height of the support column 200 is greater than the thickness of the workpiece, so that the dial indicator 310 can measure the workpiece.
[0060] like Figures 1-2 As shown, in one embodiment, it further includes:
[0061] Handles 110 are located on both sides of the control panel 100.
[0062] In this embodiment, the handle 110 is designed to facilitate the taking out of the operating table 100.
[0063] like Figure 1 As shown, in one embodiment,
[0064] The dial indicator 310 has a measuring head 311. When the dial indicator 310 is inserted into the through hole 120, the measuring head 311 is in contact with the workpiece.
[0065] In this embodiment, when the dial indicator 310 measures the workpiece, the measuring head 311 is kept in contact with the workpiece surface, thereby measuring the distance from the workpiece surface to the worktable 100.
[0066] The functions of each module in each device of this utility model embodiment can be found in the corresponding description in the above method, and will not be repeated here.
[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0069] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A bearing testing fixture, characterized in that, include: An operating table, which has several through holes, is positioned above the workpiece. A plurality of support columns are arranged in a ring around the side of the operating table facing the workpiece, and the workpiece is located between the plurality of support columns. At least three detection components are disposed on the operating table through the through hole, and all three detection components are in contact with the workpiece surface to measure the distance between the workpiece and the operating table.
2. The bearing testing fixture according to claim 1, characterized in that, The detection component includes: A dial indicator is installed on the operating table through the through hole. The dial indicator is in contact with the surface of the workpiece, and the workpiece is measured by the value displayed by the dial indicator.
3. A bearing testing fixture according to claim 2, characterized in that, Also includes: A limiting member is provided on the dial indicator. When the dial indicator is inserted into the through hole, the limiting member is located in the through hole and is in contact with the operating table.
4. A bearing testing fixture according to claim 3, characterized in that, The limiting member has a "T" shaped cross section, and the vertical rod of the limiting member is adapted to the shape of the through hole.
5. A bearing testing fixture according to claim 1, characterized in that, The height of the support column is greater than the thickness of the workpiece.
6. A bearing testing fixture according to claim 1, characterized in that, Also includes: Handles are provided on both sides of the control panel.
7. A bearing testing fixture according to claim 2, characterized in that, The dial indicator has a measuring head, which is in contact with the workpiece surface when the dial indicator is inserted into the through hole.
8. A bearing testing fixture according to claim 2, characterized in that, One of the through holes is a zero point, and during measurement, one of the dial gauges is located in the through hole at the zero point.