Warping degree measuring device for precise turntable bearing

Abstract

The utility model relates to the technical field of measuring devices, in particular to a warping degree measuring device for a precise rotary table bearing, which comprises a working platform, a plurality of placing brackets mounted on the working platform, measuring probes mounted on the placing brackets, and fixing devices mounted on two sides of the working platform and used for fixing the bearing, the fixing device comprises a fixing assembly arranged on one side of the working platform and a placing block which is arranged on the other side of the working platform and is opposite to the fixing assembly, and a V-shaped groove used for placing a bearing is formed in the top surface of the placing block. And then the other end of the bearing is placed in the fixing assembly and is fixed by the fixing assembly, a detector only needs to rotate parts of the fixing assembly, so that the whole circular mounting plate can rotate to drive the bearing to rotate, and the purpose of preventing the bearing from deviating when the detector rotates the bearing is achieved.

Description

Technical Field

[0001] This application relates to the technical field of measuring devices, and in particular to a device for measuring the warpage of a precision turntable bearing. Background Technology

[0002] A bearing warpage measuring device is a specialized instrument used to detect the degree of warpage on the bearing surface. Its basic principle typically utilizes high-precision sensors or probes to measure the positional deviation of various points on the bearing surface through contact or non-contact methods, thereby calculating the warpage. The specific structure includes a working platform, multiple support brackets mounted on the platform, measuring probes mounted on the support brackets, and placement blocks on both sides of the platform for holding the bearing. The inspector places both ends of the bearing on the two placement blocks, then places the support brackets at both ends and the middle of the bearing, ensuring the probe tips are in contact with the bearing. The bearing is then slowly rotated, and the changes in the measuring probe data are observed. The positional deviation of various points on the bearing surface is recorded, and the warpage is calculated.

[0003] However, in the existing technology, when the inspector rotates the bearing, it is not easy to control the force, and it is easy for the inspector to accidentally push the bearing to move. If the bearing moves during the inspection, it will cause the measurement probe to measure the data incorrectly. Therefore, this application proposes a warpage measurement device for precision turntable bearings. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a warpage measuring device for precision rotary table bearings, which prevents the bearing position from shifting when the inspector rotates the bearing.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: a warpage measuring device for a precision rotary table bearing, comprising a working platform, a plurality of placement brackets mounted on the working platform, measuring probes mounted on the placement brackets, and fixing devices mounted on both sides of the working platform for fixing the bearing. The fixing device includes a fixing component disposed on one side of the working platform and a placement block disposed on the other side of the working platform relative to the fixing component. The top surface of the placement block is provided with a V-shaped groove for placing the bearing.

[0006] Furthermore, the fixing assembly includes a fixing plate disposed on the working platform and opposite to the placement block, a circular opening in the middle of the fixing plate and penetrating the fixing plate, an annular groove on the side wall of the circular opening, a circular mounting plate with its edge inserted into the annular groove and a circular opening in the middle, an arc-shaped positioning plate fixedly disposed on one side of the circular opening, an arc-shaped extrusion plate disposed on one side of the circular opening and opposite to the arc-shaped positioning plate, a fixing threaded rod with one end fixedly connected to the side of the arc-shaped extrusion plate opposite to the arc-shaped positioning plate and externally threaded to the circular mounting plate, and an adjusting threaded rod that passes through the fixing plate and is threaded to the inside of the fixing threaded rod. The side of the circular mounting plate opposite to the placement block is fixedly provided with an adjusting boss for rotating the circular mounting plate. One side of the circular mounting plate is provided with a fixing screw hole that penetrates the circular mounting plate and cooperates with the fixing threaded rod. The top surface of the fixing plate is provided with an adjusting threaded hole for the adjusting threaded rod to pass through the fixing plate and be threaded to the inside of the fixing threaded rod.

[0007] By adopting the above technical solution, when bearings need to be inspected, the inspector first places one end of the bearing in the V-shaped groove for bearing placement, and then places the other end of the bearing in the circular opening, so that one side of the other end of the bearing abuts against the arc-shaped positioning plate. Then, the inspector turns the adjusting threaded rod, causing the adjusting threaded rod to drive the fixing threaded rod down along the fixing screw hole, so that the arc-shaped pressing plate presses against the other side of the bearing to fix the bearing. At this time, the inspector presses down the arc-shaped pressing plate, and then turns the adjusting threaded rod in the opposite direction, so that the adjusting threaded rod disengages from the fixing threaded rod. Then, multiple placement brackets are placed at both ends of the bearing and in the middle of the bearing, and the probe end of the measuring probe abuts against the bearing. Then, by rotating the adjusting boss, the entire circular mounting plate rotates, causing the bearing to rotate. The changes in the measuring probe data are then observed, the positional deviation of each point on the bearing surface is recorded, and the warpage is calculated. This achieves the purpose of preventing the bearing position from shifting when the inspector rotates the bearing, and improves the stability of the bearing during inspection.

[0008] Furthermore, the work platform is provided with a first slide groove and a second slide groove. Multiple placement brackets are slidably connected to the work platform through the first slide groove, the fixing plate is slidably connected to the work platform through the second slide groove, and the placement block is fixedly disposed on one end of the second slide groove.

[0009] By adopting the above technical solution, the placement bracket and the fixing plate are slidably connected to the working platform through the setting of the first slide and the second slide, so that the inspection personnel can inspect bearings of different lengths by sliding the placement bracket and the fixing plate.

[0010] Furthermore, the working platform is provided with a limiting structure on the side away from the placement block to restrict the fixing plate.

[0011] Furthermore, the limiting structure includes a limiting threaded hole opened on the side of the working platform away from the placement block and connected to the second slide groove, and a limiting threaded rod that passes through the limiting threaded hole, extends into the second slide groove, and is fixedly connected to the fixed plate. The limiting threaded rod is threadedly connected to the working platform through the limiting threaded hole.

[0012] By adopting the above technical solution, although the setting of the second slide groove allows the inspector to inspect bearings of different lengths by sliding the fixed plate, the sliding fixed plate may cause the bearing position to shift when the inspector rotates the bearing. The setting of the limiting structure solves this technical problem. By setting the limiting structure, the inspector can drive the fixed plate to slide by turning the limiting threaded rod, so that the fixed plate can inspect bearings of different lengths while the bearing position will not shift when the inspector rotates the bearing.

[0013] Furthermore, each of the multiple placement brackets is provided with a fixing structure for fixing the placement bracket on the side away from the second slide groove.

[0014] Furthermore, the fixing structure includes a fixing block fixedly disposed on the side of the bottom of the placement bracket away from the second slide groove, a fixing screw passing through the fixing block from top to bottom and threadedly connected to the fixing block, and a fixing suction cup fixedly disposed at the bottom of the fixing screw, wherein the suction surface of the fixing suction cup faces downward.

[0015] By adopting the above technical solution and setting a fixed structure, after the testing personnel slide multiple placement brackets to the beginning and end of the bearing and the middle of the bearing, they can tighten the fixing screws to make the fixing suction cups adhere to the work platform, preventing the placement brackets from moving during the testing process and improving the stability of the placement brackets.

[0016] Furthermore, the adjusting boss has a handle on the side facing away from the placement block.

[0017] By adopting the above technical solution, it is easier for testing personnel to rotate and adjust the boss.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] By using a fixing device, when a bearing needs to be inspected, the inspector first places one end of the bearing in the V-shaped groove for bearing placement, and then places the other end of the bearing in the circular opening, so that one side of the other end of the bearing abuts against the arc-shaped positioning plate. Then, the inspector turns the adjusting threaded rod, causing the adjusting threaded rod to drive the fixing threaded rod down along the fixing threaded hole, so that the arc-shaped pressing plate presses against the other side of the bearing to fix the bearing. At this time, the inspector presses down the arc-shaped pressing plate, and then turns the adjusting threaded rod in the opposite direction to disengage the adjusting threaded rod from the fixing threaded rod. Then, multiple placement brackets are placed at both ends of the bearing and in the middle of the bearing, and the probe end of the measuring probe abuts against the bearing. Then, by rotating the adjusting boss, the entire circular mounting plate rotates, causing the bearing to rotate. The changes in the measuring probe data are then observed, the positional deviation of each point on the bearing surface is recorded, and the warpage is calculated. This achieves the purpose of preventing the bearing position from shifting when the inspector rotates the bearing, thus improving the stability of the bearing during inspection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0021] Figure 2 yes Figure 1 Enlarged view of section A in the middle;

[0022] Figure 3 This is another view of the overall structure of the embodiment;

[0023] Figure 4 yes Figure 3 Enlarged view of section B in the middle.

[0024] Reference numerals: 1. Working platform; 10. Placement bracket; 11. Measuring probe; 12. First slide groove; 13. Second slide groove; 2. Fixing device; 20. Placement block; 21. V-shaped groove; 22. Fixing component; 220. Fixing plate; 221. Circular through-hole; 222. Circular mounting plate; 223. Circular opening; 224. Arc-shaped positioning plate; 225. Arc-shaped extrusion plate; 226. Fixing threaded rod; 227. Adjusting threaded rod; 228. Adjusting boss; 229. Handle; 3. Limiting structure; 30. Limiting threaded hole; 31. Limiting threaded rod; 4. Fixing structure; 40. Fixing block; 41. Fixing screw; 42. Fixing suction cup. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Example, refer to Figure 1 , Figure 2 , Figure 3A precision rotary table bearing warpage measuring device includes a working platform 1, multiple placement brackets 10 mounted on the working platform 1, measuring probes 11 mounted on the placement brackets 10, and fixing devices 2 mounted on both sides of the working platform 1 for fixing the bearing. The fixing devices 2 include a fixing component 22 disposed on one side of the working platform 1 and a placement block 20 disposed on the other side of the working platform 1 opposite to the fixing component 22. The top surface of the placement block 20 has a V-shaped groove 21 for placing the bearing. The fixing component 22 includes a fixing plate 220 disposed on the working platform 1 opposite to the placement block 20, a circular opening 221 formed in the middle of the fixing plate 220 and penetrating the fixing plate 220, and an annular groove formed on the side wall of the circular opening 221. A circular mounting plate 222 with an edge inserted into an annular groove and a circular opening 223 in the center; an arc-shaped positioning plate 224 fixedly mounted on one side of the circular opening 223; an arc-shaped extrusion plate 225 mounted on one side of the circular opening 223 and opposite to the arc-shaped positioning plate 224; a fixed threaded rod 226 with one end fixedly connected to the side of the arc-shaped extrusion plate 225 facing away from the arc-shaped positioning plate 224 and externally threaded to the circular mounting plate 222; and an adjusting threaded rod 227 passing through the fixed plate 220 and threaded to the inside of the fixed threaded rod 226. An adjusting boss 228 for rotating the circular mounting plate 222 is fixedly provided on the side of the circular mounting plate 222 facing away from the placement block 20. A through-hole is provided on one side of the circular mounting plate 222. To accommodate the fixing screw hole of the fixing screw rod 226, the top surface of the fixing plate 220 has an adjusting screw hole for the adjusting screw rod 227 to pass through the fixing plate 220 and be threaded into the fixing screw rod 226. When the bearing needs to be inspected, the inspector first places one end of the bearing in the V-shaped groove 21 for placing the bearing, and then places the other end of the bearing in the circular opening 223, so that one side of the other end of the bearing abuts against the arc-shaped positioning plate 224. Then, the inspector turns the adjusting screw rod 227, causing the adjusting screw rod 227 to drive the fixing screw rod 226 down along the fixing screw hole, so that the arc-shaped pressing plate 225 presses the other side of the bearing to fix the bearing. At this time, the inspector presses down the arc-shaped pressing plate 225 and then turns the adjusting screw rod in the opposite direction. The threaded rod 227 is used to disengage the adjusting threaded rod 227 from the fixed threaded rod 226. Then, multiple placement brackets 10 are placed at the beginning and end of the bearing and in the middle of the bearing, and the probe end of the measuring probe 11 is brought into contact with the bearing. Then, by rotating the adjusting boss 228, the entire circular mounting plate 222 is rotated, which drives the bearing to rotate. The changes in the data of the measuring probe 11 are observed, the positional deviation of each point on the bearing surface is recorded, and the warpage is calculated. This achieves the purpose of preventing the bearing position from shifting when the inspector rotates the bearing, improving the stability of the bearing during inspection. In addition, the side of the adjusting boss 228 facing away from the placement block 20 is provided with a handle 229, which makes it more convenient for the inspector to rotate the adjusting boss 228.

[0027] In this embodiment, the working platform 1 is provided with a first slide groove 12 and a second slide groove 13. Multiple placement brackets 10 are slidably connected to the working platform 1 through the first slide groove 12. The fixing plate 220 is slidably connected to the working platform 1 through the second slide groove 13. The placement block 20 is fixedly disposed on one end of the second slide groove 13. The placement brackets 10 and the fixing plate 220 are slidably connected to the working platform 1 through the arrangement of the first slide groove 12 and the second slide groove 13, so that the inspection personnel can inspect bearings of different lengths by sliding the placement brackets 10 and the fixing plate 220.

[0028] Although the second slide groove 13 allows inspectors to inspect bearings of different lengths by sliding the fixed plate 220, the sliding fixed plate 220 may cause the bearing position to shift when the inspector rotates the bearing. To solve this technical problem, this embodiment provides a limiting structure 3 for limiting the fixed plate 220 on the side of the work platform 1 away from the placement block 20. The limiting structure 3 includes a limiting threaded hole 30 opened on the side of the work platform 1 away from the placement block 20 and connected to the second slide groove 13, and a limiting threaded rod 31 that passes through the limiting threaded hole 30, extends into the second slide groove 13, and is fixedly connected to the fixed plate 220. The limiting threaded rod 31 is threaded to the work platform 1 through the limiting threaded hole 30. With the setting of the limiting structure 3, the inspector can drive the fixed plate 220 to slide by turning the limiting threaded rod 31, so that the fixed plate 220 can inspect bearings of different lengths while the bearing position does not shift when the inspector rotates the bearing.

[0029] Reference Figure 4 In this embodiment, each of the multiple placement brackets 10 is provided with a fixing structure 4 for fixing the placement brackets 10 on the side away from the second slide groove 13. The fixing structure 4 includes a fixing block 40 fixedly disposed on the side of the bottom of the placement bracket 10 away from the second slide groove 13, a fixing screw 41 passing through the fixing block 40 from top to bottom and threadedly connected to the fixing block 40, and a fixing suction cup 42 fixedly disposed at the bottom of the fixing screw 41. The suction surface of the fixing suction cup 42 faces downward. With the setting of the fixing structure 4, after the inspection personnel slide the multiple placement brackets 10 to the beginning and end ends and the middle of the bearing, they can tighten the fixing screw 41 to make the fixing suction cup 42 adhere to the work platform 1, preventing the placement brackets 10 from moving during the inspection process and improving the stability of the placement brackets 10.

[0030] Specific implementation process: When bearing inspection is required, the inspector first places one end of the bearing in the V-shaped groove 21 for bearing placement, then adjusts the fixing plate 220 to match the bearing length by turning the limiting threaded rod 31. Next, the other end of the bearing is placed in the circular opening 223, so that one side of the other end of the bearing abuts against the arc-shaped positioning plate 224. Then, the adjusting threaded rod 227 is turned, causing the adjusting threaded rod 227 to drive the fixing threaded rod 226 down along the fixing screw hole, causing the arc-shaped pressing plate 225 to press the other side of the bearing and fix it. At this point, the inspector then places the arc-shaped pressing plate... Press and hold 225, then turn the adjusting threaded rod 227 in the opposite direction to disengage the adjusting threaded rod 227 from the fixed threaded rod 226. Then slide multiple placement brackets 10 to the beginning and end of the bearing and the middle of the bearing respectively, so that the detection end of the measuring probe 11 abuts against the bearing. Then turn the fixed screw 41 to make the fixed suction cup 42 adhere to the working platform 1. Then rotate the adjusting boss 228 by the handle 229 to make the entire circular mounting plate 222 rotate and drive the bearing to rotate. Then observe the data change of the measuring probe 11, record the position deviation of each point on the bearing surface, and calculate the warpage.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for measuring the warpage of a precision rotary table bearing, characterized in that, The device includes a working platform (1), multiple placement brackets (10) mounted on the working platform (1), measuring probes (11) mounted on the placement brackets (10), and fixing devices (2) mounted on both sides of the working platform (1) for fixing bearings. The fixing device (2) includes a fixing component (22) set on one side of the working platform (1) and a placement block (20) set on the other side of the working platform (1) opposite to the fixing component (22). The top surface of the placement block (20) is provided with a V-shaped groove (21) for placing the bearing.

2. The warpage measuring device for a precision rotary table bearing according to claim 1, characterized in that, The fixing component (22) includes a fixing plate (220) disposed on the working platform (1) and opposite to the block (20), a circular opening (221) in the middle of the fixing plate (220) and penetrating the fixing plate (220), an annular groove on the side wall of the circular opening (221), a circular mounting plate (222) with its edge inserted into the annular groove and a circular opening (223) in the middle, an arc-shaped positioning plate (224) fixedly disposed on one side of the circular opening (223), an arc-shaped extrusion plate (225) disposed on one side of the circular opening (223) and opposite to the arc-shaped positioning plate (224), and one end fixedly connected to the arc-shaped extrusion plate (225) away from the arc-shaped positioning plate (224). A fixed threaded rod (226) is externally threaded to a circular mounting plate (222) and an adjusting threaded rod (227) is threaded through the fixed plate (220) and threaded inside the fixed threaded rod (226). The circular mounting plate (222) is fixedly provided with an adjusting boss (228) for rotating the circular mounting plate (222) on the side opposite to the placement block (20). A fixed screw hole is provided on one side of the circular mounting plate (222) that passes through the circular mounting plate (222) and cooperates with the fixed threaded rod (226). An adjusting threaded hole is provided on the top surface of the fixed plate (220) for the adjusting threaded rod (227) to pass through the fixed plate (220) and be threaded inside the fixed threaded rod (226).

3. The warpage measuring device for a precision rotary table bearing according to claim 2, characterized in that, The work platform (1) is provided with a first slide groove (12) and a second slide groove (13). Multiple placement brackets (10) are slidably connected to the work platform (1) through the first slide groove (12). The fixing plate (220) is slidably connected to the work platform (1) through the second slide groove (13). The placement block (20) is fixedly set on one end of the second slide groove (13).

4. The warpage measuring device for a precision rotary table bearing according to claim 3, characterized in that, The working platform (1) has a limiting structure (3) on the side away from the placement block (20) for limiting the fixing plate (220).

5. The warpage measuring device for a precision rotary table bearing according to claim 4, characterized in that, The limiting structure (3) includes a limiting threaded hole (30) opened on the side of the working platform (1) away from the placement block (20) and connected to the second slide groove (13), and a limiting threaded rod (31) that passes through the limiting threaded hole (30), extends into the second slide groove (13), and is fixedly connected to the fixing plate (220). The limiting threaded rod (31) is threadedly connected to the working platform (1) through the limiting threaded hole (30).

6. The warpage measuring device for a precision rotary table bearing according to claim 3, characterized in that, Each of the multiple placement brackets (10) is provided with a fixing structure (4) for fixing the placement bracket (10) on the side away from the second slide (13).

7. The warpage measuring device for a precision rotary table bearing according to claim 6, characterized in that, The fixing structure (4) includes a fixing block (40) fixedly disposed on the side of the bottom of the placement bracket (10) away from the second slide groove (13), a fixing screw (41) passing through the fixing block (40) from top to bottom and threadedly connected to the fixing block (40), and a fixing suction cup (42) fixedly disposed at the bottom of the fixing screw (41), with the suction surface of the fixing suction cup (42) facing down.

8. The warpage measuring device for a precision rotary table bearing according to claim 2, characterized in that, The adjusting boss (228) has a handle (229) on the side facing away from the placement block (20).

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