Workpiece arc inspection tool
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HAOJIE MACHINERIES MFG CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-06-02
Smart Images
Figure CN224316984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curvature inspection technology, and in particular to a workpiece curvature inspection fixture. Background Technology
[0002] In the mechanical manufacturing and industrial fields, workpiece curvature refers to the degree of curvature of the workpiece surface. Workpieces with specific curvature play a key role in various equipment. In order to ensure that the workpiece curvature meets the design requirements, workpiece curvature inspection fixtures have emerged. These fixtures are specially designed to measure and inspect whether the workpiece curvature is accurate. By comparing with the standard curvature, the curvature deviation of the workpiece can be quickly and accurately judged, ensuring the quality and performance of the workpiece in subsequent assembly and use.
[0003] A search revealed Chinese Patent Publication No. CN215614179U, which discloses a skin curvature inspection fixture. This fixture includes a frame and multiple clamping plates. The clamping plates are arranged side-by-side at intervals along the length of the frame, and each clamping plate has a detection arc surface on its side facing away from the frame, consistent with the theoretical curvature of the skin to be inspected. The skin can be laid on the frame along a first direction, ensuring that the inner arc surface of the skin is in close contact with the detection arc surfaces of the clamping plates. This allows the inspection of the skin curvature based on the degree of contact between the skin and the clamping plates. The curvature of the skin is inspected. If the gap between the skin and the clamping plate is less than the predetermined size, the skin is a qualified product; otherwise, it is a defective product. Therefore, the curvature of the skin is inspected by multiple clamping plates set on the frame. Compared with the inspection method where the inspector holds the clamping plates to fit the skin, this method not only reduces the labor intensity of the inspector and improves the inspection efficiency but also improves the inspection accuracy. However, in actual use, this equipment cannot be changed according to the different positions and angles of the workpiece, which leads to measurement errors and affects the judgment of product quality. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a workpiece curvature inspection fixture, which aims to improve the problem in the prior art that it cannot be changed according to different positions and angles of the workpiece, resulting in measurement errors and affecting the judgment of product quality.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a workpiece curvature inspection fixture, comprising a workpiece to be inspected, a base provided on the rear side of the workpiece to be inspected, a vertical plate fixedly connected to the top of the base, a sliding groove provided on the front side of the vertical plate, a threaded rod rotatably connected to the top of the vertical plate, the bottom end of the threaded rod penetrating the top of the sliding groove and threadedly connected to a sliding block, a U-shaped frame fixedly connected to the front side of the sliding block, an arc-shaped groove provided on the left side of the U-shaped frame, an arc-shaped groove provided at the front left side of the U-shaped frame, an arc-shaped plate fixedly connected to the left side of the U-shaped frame, a limit groove provided on the outer wall of the arc-shaped plate, a rotating plate rotatably connected to the inner side of the U-shaped frame, a measuring plate provided on the front side of the rotating plate, a pushing block fixedly connected to the left side of the rotating plate, the outer wall of the pushing block slidingly connected to the interior of the arc-shaped groove, a fixing bolt rotatably connected to the front side of the pushing block, and an installation mechanism provided on the front side of the rotating plate for installing the measuring plate.
[0006] The above technical solution involves placing the workpiece to be inspected in a suitable position. The base provides stable support for the entire fixture. The upright plate is fixed to the top of the base, and its front sliding groove restricts the movement trajectory of the sliding block. Rotating the threaded rod causes the sliding block to move up and down within the sliding groove, as the threaded rod is threadedly connected to the sliding block and its bottom end passes through the sliding groove. This movement drives the U-shaped frame fixed to the front of the sliding block to move synchronously. The arc-shaped groove on the left side of the U-shaped frame engages with the push block fixedly connected to the left side of the rotating plate. The outer wall of the push block can slide inside the arc-shaped groove. Once the U-shaped frame is properly positioned, rotating the rotating plate pushes the block... The block slides along the arc-shaped groove, causing the rotating plate to rotate around the inner side of the U-shaped frame to accommodate workpieces with different curvatures. The measuring plate on the front side of the rotating plate is used to measure the curvature of the workpiece. At the same time, the outer wall of the arc-shaped plate fixedly connected to the left side of the U-shaped frame has a limit groove. When the rotating plate rotates to the appropriate angle, the fixed bolts on the front side of the block can be rotated to engage with the limit groove, fixing the rotating plate in the current position. This enables accurate measurement and inspection of workpieces with different curvatures. By directly contacting the edge of the workpiece with the measuring plate, it is possible to observe whether there is a gap or misalignment between the two, which can be quickly detected.
[0007] As a further description of the above technical solution:
[0008] The mounting mechanism includes a support plate, the rear side of which is fixedly connected to the front side of a rotating plate. The front of the rotating plate has a mounting groove, and a measuring plate is slidably connected inside the mounting groove. Both ends of the top rear side of the measuring plate have preset holes, and the left and right ends of the top front side of the rotating plate are rotatably connected to limit bolts.
[0009] With the above technical solution, the measuring plate can slide flexibly in the mounting groove. The preset holes at both ends of the top rear side of the measuring plate cooperate with the limiting bolts that rotate and connect the left and right ends of the top front side of the rotating plate. When it is necessary to change the position of the measuring plate on the rotating plate, the limiting bolts are loosened, and the measuring plate can slide freely in the mounting groove. After adjusting to the appropriate position according to the actual measurement needs, the limiting bolts are rotated to align with the corresponding preset holes and tightened, thereby replacing the measuring plate.
[0010] As a further description of the above technical solution:
[0011] A push handle is fixedly connected to the rear side of the upright plate, and a rubber sleeve is fixedly connected to the outer wall of the push handle.
[0012] The above technical solution involves fixing the handle to the back of the upright plate, making it convenient for operators to hold and push the tool, while the rubber sleeve increases the comfort and friction of the grip.
[0013] As a further description of the above technical solution:
[0014] The upright plate has sliding grooves on both the left and right sides inside, and the sliding block has sliders fixedly connected to both the left and right sides.
[0015] The above technical solution restricts the movement direction of the sliding block, allowing it to move only in the vertical direction defined by the groove, thus ensuring the smoothness and accuracy of the sliding block's movement.
[0016] As a further description of the above technical solution:
[0017] Both of the limiting bolts have slidably connected washers on their outer walls, and the bottoms of both washers are in contact with the top of the rotating plate.
[0018] Through the above technical solution, the gasket can increase the contact area with the rotating plate, making the pressure distribution more uniform and preventing the surface of the rotating plate from being damaged due to excessive local pressure.
[0019] As a further description of the above technical solution:
[0020] The base has U-shaped plates rotatably connected to its four corners, and rollers are rotatably connected to the bottom of each of the U-shaped plates.
[0021] The above technical solution allows the rollers to rotate flexibly and be easily moved between different work areas by means of a U-shaped plate connected to the base.
[0022] As a further description of the above technical solution:
[0023] The bottom ends of the two limiting bolts both pass through the mounting groove and are rotatably connected inside the corresponding preset holes, and the size of the limiting bolts matches that of the preset holes.
[0024] The above technical solution allows the measuring plate to be fixed at different positions on the rotating plate, enabling precise adjustment and fixation of the measuring plate's position.
[0025] As a further description of the above technical solution:
[0026] A triangular fixing block is fixedly connected to the lower rear side of the upright plate, and the bottom of the triangular fixing block is fixedly connected to the top of the base.
[0027] The above technical solution enhances the connection strength and stability between the upright plate and the base, making the tooling more stable during use.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, by placing the workpiece to be inspected in a suitable position, rotating the threaded rod to move the sliding block in the sliding groove, driving the U-shaped frame to move synchronously, rotating the rotating plate to make the pushing block slide along the arc groove, adjusting the angle of the rotating plate, and then using the fixing bolt and the limiting groove to fix the position of the rotating plate, the measuring plate can adapt to workpieces with different curvatures, realizing the accurate measurement and inspection of the curvature of the workpiece to be inspected. The operation is flexible and convenient, and it can quickly detect whether the curvature of the workpiece is qualified, thus improving the inspection efficiency and accuracy.
[0030] 2. In this utility model, the limiting bolt on the rotating plate cooperates with the preset hole on the top of the measuring plate. When the limiting bolt is loosened, the measuring plate can slide freely in the mounting groove. After sliding to a suitable position according to actual needs, the limiting bolt is tightened to align and fix it with the preset hole. This realizes the convenient replacement of the measuring plate position on the rotating plate, which can flexibly adapt to different measurement scenarios and improve the flexibility and practicality of tooling use. Attached Figure Description
[0031] Figure 1 This is a perspective view of a workpiece curvature inspection fixture proposed in this utility model;
[0032] Figure 2 This is a partial structural schematic diagram of a workpiece curvature inspection fixture proposed in this utility model;
[0033] Figure 3 This is a side view of the structure of a workpiece curvature inspection fixture proposed in this utility model;
[0034] Figure 4 This is a structural exploded view of a workpiece curvature inspection fixture proposed in this utility model;
[0035] Figure 5 This is a schematic diagram of the installation mechanism of a workpiece curvature inspection fixture proposed in this utility model.
[0036] Legend:
[0037] 1. Workpiece to be inspected; 2. Mounting mechanism; 201. Support plate; 202. Mounting groove; 203. Preset hole; 204. Limit bolt; 3. Base; 4. Vertical plate; 5. Sliding groove; 6. Threaded rod; 7. Sliding block; 8. U-shaped frame; 9. Arc groove; 10. Arc plate; 11. Limit groove; 12. Rotating plate; 13. Push block; 14. Fixing bolt; 15. Measuring plate; 16. Push handle; 17. Rubber sleeve; 18. Slide groove; 19. Slider; 20. Shim; 21. U-shaped plate; 22. Roller; 23. Triangular fixing block. Detailed Implementation
[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0039] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a workpiece curvature inspection fixture, including a workpiece 1 to be inspected, a base 3 provided on the rear side of the workpiece 1, the base 3 providing stable support for the entire fixture, a vertical plate 4 fixedly connected to the top of the base 3, the vertical plate 4 for mounting other components and providing a mounting base for them, a sliding groove 5 opened on the front side of the vertical plate 4, the sliding groove 5 for limiting the movement trajectory of the sliding block 7, a threaded rod 6 rotatably connected to the top of the vertical plate 4, the rotation of the threaded rod 6 can drive the sliding block 7 to move up and down, the bottom end of the threaded rod 6 passes through the sliding groove 5 and is threadedly connected to the sliding block 7, the sliding block 7 can move up and down on the threaded rod 6. The sliding block 7 moves along the lower sliding groove 5. A U-shaped frame 8 is fixedly connected to the front side of the sliding block 7. The U-shaped frame 8 is used to install components such as the rotating plate 12. An arc-shaped groove 9 is opened on the left side of the U-shaped frame 8. The arc-shaped groove 9 cooperates with the push block 13 to allow the rotating plate 12 to rotate. An arc-shaped groove 9 is also opened at the front left side of the U-shaped frame 8, which is also used to cooperate with the push block 13 to realize the rotation of the rotating plate 12. An arc-shaped plate 10 is fixedly connected to the left side of the U-shaped frame 8. The arc-shaped plate 10 provides a limiting function for the rotation of the rotating plate 12. A limiting groove 11 is opened on the outer wall of the arc-shaped plate 10. The limiting groove 11 cooperates with the fixing bolt 14 to fix the rotating plate 12. The U-shaped frame 8 is rotatably connected to a rotating plate 12 on its inner side. The rotating plate 12 can rotate around the inner side of the U-shaped frame 8 to accommodate workpieces with different curvatures. A measuring plate 15 is provided on the front side of the rotating plate 12. The measuring plate 15 is used to measure the curvature of the workpiece 1 to be inspected. A pushing block 13 is fixedly connected to the left side of the rotating plate 12. The pushing block 13 moves with the rotating plate 12 and slides in the arc groove 9. The outer wall of the pushing block 13 is slidably connected to the inside of the arc groove 9 to ensure that the pushing block 13 can move along the arc groove 9 when the rotating plate 12 rotates. A fixing bolt 14 is rotatably connected to the front side of the pushing block 13. The fixing bolt 14 can be connected to the... The limiting groove 11 is used to fix the rotating plate 12. The front side of the rotating plate 12 is provided with the mounting mechanism 2, which is used to install the measuring plate 15. The rear side of the upright plate 4 is fixedly connected with the push handle 16, which makes it convenient for the operator to push the tool. The outer wall of the push handle 16 is fixedly connected with the rubber sleeve 17, which increases the grip comfort and friction. The left and right sides of the interior of the upright plate 4 are provided with sliding grooves 18. The sliding grooves 18 and the sliders 19 cooperate to limit the movement direction of the sliding block 7. The left and right sides of the sliding block 7 are fixedly connected with the sliders 19, which slide in the sliding grooves 18 to ensure the smooth movement of the sliding block 7.
[0040] Specifically, the workpiece 1 to be inspected is placed in a suitable position. The base 3 provides stable support for the entire fixture. The upright plate 4 is fixed to the top of the base 3. The sliding groove 5 on its front side is used to limit the movement trajectory of the sliding block 7. The threaded rod 6 is rotated. Since the threaded rod 6 is threadedly connected to the sliding block 7 and the bottom end of the threaded rod 6 passes through the sliding groove 5, the sliding block 7 will move up and down in the sliding groove 5 as the threaded rod 6 rotates. This will drive the U-shaped frame 8 fixed to the front side of the sliding block 7 to move synchronously. The arc-shaped groove 9 on the left side of the U-shaped frame 8 cooperates with the push block 13 fixedly connected to the left side of the rotating plate 12. The outer wall of the push block 13 can slide inside the arc-shaped groove 9. After the position of the U-shaped frame 8 is adjusted, the rotating plate 12 is rotated. The push block 13 slides along the arc-shaped groove 9, so that the rotating plate 12 rotates around the inner side of the U-shaped frame 8 to adapt to the workpiece 1 to be inspected with different curvatures. The front side of the rotating plate 12 The measuring plate 15 is used to measure the curvature of the workpiece 1 to be inspected. At the same time, the outer wall of the arc plate 10 fixedly connected to the left side of the U-shaped frame 8 is provided with a limiting groove 11. When the rotating plate 12 rotates to a suitable angle, the fixed bolt 14 rotatably connected to the front side of the push block 13 can be rotated to make it cooperate with the limiting groove 11, thereby fixing the rotating plate 12 in the current position. This enables accurate measurement and inspection of workpieces 1 to be inspected with different curvatures. The measuring plate 15 directly abuts against the edge of the workpiece to observe whether there is a gap or misalignment between the two, which can be quickly detected. It is convenient for the operator to hold and push the fixture. The rubber sleeve 17 increases the comfort and friction of the grip, making the pushing operation more convenient and stable. It restricts the movement direction of the sliding block 7, so that it can only move in the vertical direction defined by the slide groove 18, ensuring the smoothness and accuracy of the movement of the sliding block 7.
[0041] Reference Figure 5 The mounting mechanism 2 includes a support plate 201, which connects the rotating plate 12 and the measuring plate 15. The rear side of the support plate 201 is fixedly connected to the front side of the rotating plate 12, thus achieving a stable connection between the mounting mechanism 2 and the rotating plate 12. The rotating plate 12 has a mounting groove 202 at the front, which provides a sliding track for the measuring plate 15. The measuring plate 15 is slidably connected inside the mounting groove 202, allowing the measuring plate 15 to move flexibly within the mounting groove 202. The top rear ends of the measuring plate 15 are provided with preset holes 203, which are used to cooperate with limit bolts 204 to fix the position of the measuring plate 15. The top front left and right ends of the rotating plate 12 are rotatably connected with limit bolts 204, which can fix the measuring plate 15 by screwing them into the preset holes 203.
[0042] Specifically, the measuring plate 15 can slide flexibly within the mounting groove 202. The preset holes 203 at both ends of the rear top of the measuring plate 15 cooperate with the limiting bolts 204 that are rotatably connected to the left and right ends of the front top of the rotating plate 12. When it is necessary to change the position of the measuring plate 15 on the rotating plate 12, the limiting bolts 204 are loosened, and the measuring plate 15 can slide freely within the mounting groove 202. After adjusting to a suitable position according to the actual measurement requirements, the limiting bolts 204 are rotated to align with the corresponding preset holes 203 and tightened, thereby replacing the measuring plate 15.
[0043] Reference Figure 3 , Figure 4 and Figure 5 Both limit bolts 204 have slidably connected washers 20 on their outer walls. The washers 20 increase the contact area between the limit bolts 204 and the rotating plate 12. The bottoms of both washers 20 are in contact with the top of the rotating plate 12, dispersing pressure and preventing damage to the surface of the rotating plate 12. U-shaped plates 21 are rotatably connected to the four corners of the bottom of the base 3. The U-shaped plates 21 provide a mounting base for the rollers 22, allowing the tooling to move. Rollers 22 are rotatably connected to the bottoms of multiple U-shaped plates 21, facilitating flexible movement of the tooling within the working area. The two limit bolts 204... The bottom of each of the four plates passes through the mounting groove 202 and is rotatably connected to the corresponding preset hole 203. By passing through the mounting groove 202 and connecting with the preset hole 203, the measuring plate 15 is fixed. The size of the limiting bolt 204 matches that of the preset hole 203, ensuring that the limiting bolt 204 can be tightly screwed into the preset hole 203, providing a stable fixing effect. A triangular fixing block 23 is fixedly connected to the lower rear side of the upright plate 4. The triangular fixing block 23 enhances the connection strength between the upright plate 4 and the base 3. The bottom of the triangular fixing block 23 is fixedly connected to the top of the base 3 to ensure the stability of the overall structure of the tooling.
[0044] Specifically, when tightening the limiting bolt 204, the washer 20 can increase the contact area with the rotating plate 12, making the pressure distribution more uniform and preventing the surface of the rotating plate 12 from being damaged due to excessive local pressure. The U-shaped plate 21 and roller 22 at the four corners of the bottom of the base 3 allow the tooling to be moved easily. The roller 22 is rotatably connected to the base 3 through the U-shaped plate 21, allowing for flexible steering and facilitating the movement of the tooling between different working areas. The bottom end of the limiting bolt 204 passes through the mounting groove 202 and is rotatably connected to the preset hole 203, and the dimensions match. By tightening or loosening the limiting bolt 204, the measuring plate 15 can be fixed at different positions on the rotating plate 12, achieving precise adjustment and fixation of the position of the measuring plate 15, enhancing the connection strength and stability between the upright plate 4 and the base 3, and making the tooling more stable during use.
[0045] Working principle: Place the workpiece 1 to be inspected in a suitable position. The base 3 provides stable support for the entire fixture. The upright plate 4 is fixed to the top of the base 3. The sliding groove 5 on its front side is used to limit the movement trajectory of the sliding block 7. Rotate the threaded rod 6. Since the threaded rod 6 is threadedly connected to the sliding block 7 and the bottom end of the threaded rod 6 passes through the sliding groove 5, the sliding block 7 will move up and down in the sliding groove 5 as the threaded rod 6 rotates. This will drive the U-shaped frame 8 fixed to the front side of the sliding block 7 to move synchronously. The arc-shaped groove 9 on the left side of the U-shaped frame 8 cooperates with the push block 13 fixedly connected to the left side of the rotating plate 12. The outer wall of the push block 13 can slide inside the arc-shaped groove 9. After the position of the U-shaped frame 8 is adjusted, rotate the rotating plate 12 and the push block 13 will move. Sliding along the arc groove 9, the rotating plate 12 rotates around the inner side of the U-shaped frame 8 to accommodate workpieces 1 with different curvatures. The measuring plate 15 set on the front side of the rotating plate 12 is used to measure the curvature of the workpiece 1. At the same time, the outer wall of the arc plate 10 fixedly connected to the left side of the U-shaped frame 8 is provided with a limiting groove 11. When the rotating plate 12 rotates to a suitable angle, the fixed bolt 14 rotatably connected to the front side of the push block 13 can be rotated to make it cooperate with the limiting groove 11, thereby fixing the rotating plate 12 in the current position, thus realizing accurate measurement and inspection of workpieces 1 with different curvatures. By using the measuring plate 15 to directly abut against the edge of the workpiece, it can be observed whether there is a gap or misalignment between the two, which can be quickly detected.
[0046] Furthermore, the measuring plate 15 can slide flexibly within the mounting groove 202. The preset holes 203 at both ends of the rear top of the measuring plate 15 cooperate with the limiting bolts 204 that are rotatably connected to the left and right ends of the front top of the rotating plate 12. When it is necessary to change the position of the measuring plate 15 on the rotating plate 12, the limiting bolts 204 are loosened, and the measuring plate 15 can slide freely within the mounting groove 202. After adjusting to a suitable position according to the actual measurement requirements, the limiting bolts 204 are rotated to align with the corresponding preset holes 203 and tightened, thereby replacing the measuring plate 15.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A workpiece curvature inspection fixture, comprising a workpiece to be inspected (1), characterized in that: A base (3) is provided on the rear side of the workpiece (1) to be inspected. A vertical plate (4) is fixedly connected to the top of the base (3). A sliding groove (5) is provided on the front side of the vertical plate (4). A threaded rod (6) is rotatably connected to the top of the vertical plate (4). The bottom end of the threaded rod (6) passes through the top of the sliding groove (5) and is threadedly connected to a sliding block (7). A U-shaped frame (8) is fixedly connected to the front side of the sliding block (7). An arc groove (9) is provided on the left side of the U-shaped frame (8). An arc groove (9) is provided at the front left side of the U-shaped frame (8). The left side of the U-shaped frame (8) is fixedly connected to... There is an arc-shaped plate (10), and a limiting groove (11) is opened on the outer wall of the arc-shaped plate (10). A rotating plate (12) is rotatably connected to the inner side of the U-shaped frame (8). A measuring plate (15) is provided on the front side of the rotating plate (12). A pushing block (13) is fixedly connected to the left side of the rotating plate (12). The outer wall of the pushing block (13) is slidably connected to the inside of the arc-shaped groove (9). A fixing bolt (14) is rotatably connected to the front side of the pushing block (13). An installation mechanism (2) is provided on the front side of the rotating plate (12). The installation mechanism (2) is used to install the measuring plate (15).
2. The workpiece curvature inspection fixture according to claim 1, characterized in that: The installation mechanism (2) includes a support plate (201), the rear side of which is fixedly connected to the front side of the rotating plate (12). The rotating plate (12) has an installation groove (202) on its front. A measuring plate (15) is slidably connected inside the installation groove (202). The measuring plate (15) has preset holes (203) at both ends of its top rear side. Limit bolts (204) are rotatably connected to the left and right ends of the top front side of the rotating plate (12).
3. The workpiece curvature inspection fixture according to claim 1, characterized in that: A push handle (16) is fixedly connected to the rear side of the upright plate (4), and a rubber sleeve (17) is fixedly connected to the outer wall of the push handle (16).
4. The workpiece curvature inspection fixture according to claim 1, characterized in that: The vertical plate (4) has grooves (18) on both the left and right sides inside, and sliders (19) are fixedly connected to both the left and right sides of the sliding block (7).
5. The workpiece curvature inspection fixture according to claim 2, characterized in that: Both of the limiting bolts (204) have slidably connected gaskets (20) on their outer walls, and the bottom of both gaskets (20) is in contact with the top of the rotating plate (12).
6. The workpiece curvature inspection fixture according to claim 1, characterized in that: The base (3) has a U-shaped plate (21) rotatably connected to each of the four corners at the bottom, and a roller (22) rotatably connected to the bottom of each of the U-shaped plates (21).
7. The workpiece curvature inspection fixture according to claim 2, characterized in that: The bottom ends of the two limiting bolts (204) pass through the mounting groove (202) and are rotatably connected inside the corresponding preset hole (203). The size of the limiting bolts (204) matches that of the preset hole (203).
8. The workpiece curvature inspection fixture according to claim 1, characterized in that: A triangular fixing block (23) is fixedly connected to the lower rear side of the upright plate (4), and the bottom of the triangular fixing block (23) is fixedly connected to the top of the base (3).