Hardware flatness detection jig
By designing a multi-axis moving platform and a flip-up measuring part fixing mechanism, the problem that traditional hardware inspection fixtures cannot be compatible with parts of different shapes has been solved, achieving efficient and accurate flatness inspection of hardware parts.
Patent Information
- Application Number
- CN202521052739.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-05-27
AI Technical Summary
Traditional hardware inspection fixtures are incompatible with parts of different shapes, resulting in frequent fixture changes during the inspection process, which affects efficiency and measurement accuracy.
A hardware flatness testing fixture was designed, which adopts a multi-axis moving platform and a flip-up measuring part fixing mechanism, including a U-shaped base, a flipping table, a mounting base, a lifting block and a support block. It can adapt to the clamping and fixing of columnar and sheet-shaped hardware parts, and realize multi-directional moving measurement through an electronic dial indicator.
It enables stable fixing and efficient flatness measurement of hardware parts with different structural types, improving inspection efficiency and accuracy, and reducing the frequency of fixture replacement.
Smart Images

Figure CN223976616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of parts flatness equipment, and in particular to a hardware parts flatness testing fixture. Background Technology
[0002] During the production process, hardware parts are affected by stamping, casting, and machining processes, and the surface may have problems such as unevenness and warping. Therefore, it is necessary to conduct flatness tests on hardware parts so that defects can be detected and corrected in time, thus ensuring product quality.
[0003] Traditional fixtures mostly adopt a single fixing mode. For example, V-groove fixtures for columnar parts are not compatible with sheet-like parts, while pressure plate structures for planar parts are difficult to stably fix irregularly shaped parts. This leads to frequent fixture changes during the inspection process. In other words, when batching and inspecting mixed batches containing columnar, sheet-like, and irregularly shaped parts, operators need to repeatedly adjust fixture parameters or replace fixture components, causing the inspection process to be interrupted. This not only reduces efficiency but may also affect measurement accuracy due to clamping errors. Utility Model Content
[0004] The purpose of this utility model is to provide a hardware flatness testing fixture, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A hardware flatness testing fixture includes a control box. Two first guide rails are fixedly mounted on the control box. An X-axis moving platform is slidably connected to the two first guide rails. Two second guide rails are fixedly mounted on the front side of the X-axis moving platform. A Y-axis moving platform is slidably connected to the front side of the two second guide rails. A Z-axis moving platform is movably mounted on the front side of the Y-axis moving platform. An electronic dial indicator is fixedly mounted on the front side of the Z-axis moving platform. The X-axis moving platform, Y-axis moving platform, Z-axis moving platform, and electronic dial indicator are electrically connected to the main control board inside the control box via cables. A measuring component fixing mechanism is also fixedly mounted on the control box located between the two first guide rails. The measuring component fixing mechanism includes a U-shaped base. A flipping table is movably mounted on the U-shaped base. A mounting seat is movably mounted on the flipping table. A lifting block is movably mounted on the mounting seat. A support block is fixedly mounted on the mounting seat near the lifting block. A V-shaped groove is formed in the support block, and a support block is movably mounted in the V-shaped groove.
[0007] As a further preferred embodiment of this utility model, a rotating shaft is fixedly installed inside the U-shaped base. The rotating shaft provides conditions for the rotational installation of the flipping table. Support seats are fixedly installed on the top and one side of the U-shaped base, and a locking bolt is threadedly connected to one side of the U-shaped base. The support seats can provide positioning support for the flipping table after it is flipped and adjusted, ensuring that when the flipping table is flipped to the top or bottom of the U-shaped base, the side of the flipping table with the mounting seat remains horizontal or vertical. A fixing ring is fixedly installed at the bottom of the flipping table, and the flipping table is rotatably mounted on the rotating shaft through the fixing ring.
[0008] As a further preferred embodiment of this utility model, a first fixed shaft and a second fixed shaft are fixedly installed on the mounting base, and a U-shaped pressure component is rotatably installed on the second fixed shaft. The lifting block is inserted and installed on the first fixed shaft and the second fixed shaft, and a first compression spring is also fitted on the second fixed shaft located between the mounting base and the lifting block. By installing the lifting block on the mounting base through the first fixed shaft and the second fixed shaft on the mounting base, the vertical displacement of the lifting block can be realized, which facilitates the clamping and fixing of different types of hardware parts in conjunction with the support block.
[0009] As a further preferred embodiment of this utility model, two pressure blocks are fixedly installed on one side of the lifting block. By setting two pressure blocks on one side of the lifting block, pressure can be applied to the hardware at two points.
[0010] As a further preferred embodiment of this utility model, positioning grooves are provided on both sides of the support block, and pads are fixedly installed on both sides of the bottom of the support block. A third fixing shaft is fixedly installed on the top of the pad, and the upper end of the third fixing shaft extends through the through groove at the bottom of the positioning groove into the positioning groove.
[0011] As a further preferred embodiment of this utility model, positioning blocks are fixedly installed on both sides of the support block. The positioning blocks are inserted into the corresponding positioning grooves, and the telescopic grooves in the positioning blocks are also inserted into the corresponding third fixed shafts. The support block with a V-shaped groove inside can position and place the columnar hardware. At the same time, the collapsible support block in the V-shaped groove can cooperate with the pressure block to clamp and fix the sheet-like hardware, and prevent the sheet-like hardware from bending due to force.
[0012] As a further preferred embodiment of this utility model, a second compression spring is fitted on the outer side of the third fixed shaft. The top of the second compression spring abuts against the bottom of the positioning block, and the bottom of the second compression spring abuts against the pad. The second compression spring can provide support force to the positioning block, thereby providing a certain support force to the support block, ensuring that the upper surface of the support block and the upper surface of the support block are at the same level.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] In this utility model, a measuring component fixing mechanism is provided on the control box. The measuring component fixing mechanism consists of a U-shaped base, a flipping table, a mounting base, a lifting block, a support block, and other structures. A V-shaped groove is provided in the support block, and a support block is provided in the V-shaped groove. This allows for clamping and fixing one end of columnar and sheet-shaped hardware components. In conjunction with the flipping table, which can rotate 90 degrees, hardware components of different structural types can be fixed. This allows for the measurement of the flatness of hardware components of different structural types in conjunction with an electronic dial indicator. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the measuring component fixing mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the U-shaped base structure of this utility model;
[0018] Figure 4 This is a cross-sectional view of the support block of this utility model.
[0019] In the diagram: 1. Control box; 2. First guide rail; 3. X-axis moving platform; 4. Second guide rail; 5. Y-axis moving platform; 6. Z-axis moving platform; 7. Electronic dial indicator; 8. Measuring piece fixing mechanism; 9. U-shaped base; 10. Tilting table; 11. Mounting seat; 12. Lifting block; 13. Support block; 14. V-groove; 15. Support block; 16. Rotating shaft; 17. Support seat; 18. Locking bolt; 19. Fixing ring; 20. First fixed shaft; 21. Second fixed shaft; 22. U-shaped pressure component; 23. First compression spring; 24. Pressure block; 25. Positioning groove; 26. Pad block; 27. Third fixed shaft; 28. Positioning block; 29. Second compression spring. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figures 1-4As shown, this utility model provides a hardware flatness testing fixture, including a control box 1. Two first guide rails 2 are fixedly mounted on the control box 1. An X-axis moving platform 3 is slidably connected to the two first guide rails 2. Two second guide rails 4 are fixedly mounted on the front side of the X-axis moving platform 3. A Y-axis moving platform 5 is slidably connected to the front side of the two second guide rails 4. A Z-axis moving platform 6 is movably mounted on the front side of the Y-axis moving platform 5. An electronic dial indicator 7 is fixedly mounted on the front side of the Z-axis moving platform 6. The X-axis moving platform 3, Y-axis moving platform 5, and Z-axis moving platform 6... The electronic dial indicator 7 is electrically connected to the main control board inside the control box 1 via cables. The control box 1, located between the two first guide rails 2, is also fixedly installed with a measuring component fixing mechanism 8. The measuring component fixing mechanism 8 includes a U-shaped base 9, a tilting table 10 is movably installed on the U-shaped base 9, a mounting base 11 is movably installed on the tilting table 10, a lifting block 12 is movably installed on the mounting base 11, and a support block 13 is fixedly installed on the mounting base 11 near the lifting block 12. A V-shaped groove 14 is opened in the support block 13, and a support block 15 is movably installed in the V-shaped groove 14.
[0022] like Figures 2-3 As shown, a rotating shaft 16 is fixedly installed inside the U-shaped base 9. The rotating shaft 16 provides conditions for the rotation and installation of the tilting table 10. Support seats 17 are fixedly installed on the top and one side of the U-shaped base 9, and a locking bolt 18 is threadedly connected to one side of the U-shaped base 9. The support seats 17 can provide positioning support for the tilting table 10 after it is tilted and adjusted, ensuring that when the tilting table 10 is tilted above or below the U-shaped base 9, the side of the tilting table 10 with the mounting seat 11 remains horizontal or vertical. A fixing ring 19 is fixedly installed at the bottom of the tilting table 10, and the tilting table 10 is rotatably mounted on the rotating shaft 16 through the fixing ring 19.
[0023] like Figures 2-4As shown, a first fixed shaft 20 and a second fixed shaft 21 are fixedly mounted on the mounting base 11. A U-shaped pressure component 22 is rotatably mounted on the second fixed shaft 21. The lifting block 12 is inserted and installed on the first fixed shaft 20 and the second fixed shaft 21. A first compression spring 23 is also fitted on the second fixed shaft 21 located between the mounting base 11 and the lifting block 12. By mounting the lifting block 12 on the mounting base 11 via the first fixed shaft 20 and the second fixed shaft 21, the vertical displacement of the lifting block 12 can be achieved, which facilitates the clamping and fixing of different types of hardware parts in conjunction with the support block 13. Two pressure blocks 24 are fixedly mounted on one side of the lifting block 12. The two pressure blocks 24 on one side of the lifting block 12 can provide pressure fixing of the hardware parts at two points. Positioning grooves 25 are opened on both sides of the support block 13. Pads 26 are also fixedly mounted on both sides of the bottom of the support block 13. A third fixed shaft 27 is fixedly mounted on the top of the pads 26. The upper end of the fixed shaft 27 extends through the through groove at the bottom of the positioning groove 25 into the positioning groove 25. Positioning blocks 28 are fixedly installed on both sides of the support block 15. The positioning blocks 28 are inserted into the corresponding positioning grooves 25, and the telescopic grooves in the positioning blocks 28 are also inserted into the corresponding third fixed shaft 27. The support block 13 with a V-shaped groove 14 inside can position and place the columnar hardware. At the same time, the collapsible support block 15 in the V-shaped groove 14 can cooperate with the pressure block 24 to clamp and fix the sheet-like hardware, and prevent the sheet-like hardware from bending due to force. A second compression spring 29 is fitted on the outside of the third fixed shaft 27. The top of the second compression spring 29 abuts against the bottom of the positioning block 28, and the bottom of the second compression spring 29 abuts against the pad block 26. The second compression spring 29 can provide support force to the positioning block 28, thereby providing a certain support force to the support block 15, ensuring that the upper surface of the support block 15 and the upper surface of the support block 13 are at the same level.
[0024] It should be noted that this utility model is a hardware flatness testing fixture. The hardware to be tested is placed on the support block 13 of the measuring part fixing mechanism 8. The columnar part is positioned by the V-groove 14 of the support block 13. The operating handle on the U-shaped pressure member 22 is manually operated, which makes the U-shaped pressure member 22 rotate on the second fixed shaft 21. The U-shaped pressure member 22 gradually presses down the lifting block 12 using the arc surface on one side of its bottom. As a result, the lifting block 12 moves up and down between the first fixed shaft 20 and the second fixed shaft 21, and compresses the first compression spring 23. This causes the lifting block 12 to drive the two pressure blocks 24 to move down synchronously. Then, the bottom of the two pressure blocks 24 abuts against the upper surface of the hardware, thereby pressing the columnar hardware, which is smaller than the width of the support block 13, into the V-groove 14 and pressing down and moving the support block 15, thereby making the flatness of the hardware more even. The support block 15 drives the positioning blocks 28 on both sides to move down synchronously in the corresponding positioning grooves 25. The positioning blocks 28 also compress the second compression spring 29, thereby clamping and fixing the columnar hardware. The sheet-like parts are elastically clamped and fixed by the support block 15 and the pressure block 24. The support block 15 supports the middle of the sheet-like parts. Subsequently, according to the measurement requirements of hardware of different structural types, the rotating table 10 can be rotated 90 degrees around the U-shaped base 9 by the rotating shaft 16 and positioned by the support seat 17 and fixed by the locking bolt 18 to switch the detection posture. The main control board in the control box 1 drives the X-axis moving platform 3, the Y-axis moving platform 5, and the Z-axis moving platform 6 to move the electronic dial indicator 7 in multiple directions. Thus, the three-dimensional moving system composed of the above structure allows the electronic dial indicator 7 to contact the surface of the part to collect displacement data and transmit it to the main control board to calculate the flatness deviation.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hardware flatness detection jig, characterized in that: The utility model provides a kind of control box (1), two first guide rails (2) are fixedly installed on the control box (1), X direction moving platform (3) is slidably connected on two first guide rails (2), two second guide rails (4) are fixedly installed on the front side of X direction moving platform (3), Y direction moving platform (5) is slidably connected on the front side of two second guide rails (4), Z direction moving platform (6) is movably installed on the front side of Y direction moving platform (5), electronic micrometer (7) is fixedly installed on the front side of Z direction moving platform (6), and X direction moving platform (3), Y direction moving platform (5), Z direction moving platform (6), electronic micrometer (7) are electrically connected with main control board in control box (1) respectively by cable, measurement piece fixing mechanism (8) is further fixedly installed on control box (1) between two first guide rails (2), the measurement piece fixing mechanism (8) includes U-shaped base (9), turnover platform (10) is movably installed on the U-shaped base (9), mounting seat (11) is movably installed on the turnover platform (10), lifting block (12) is movably installed on the mounting seat (11), supporting block (13) is further fixedly installed on the mounting seat (11) close to lifting block (12), V-shaped groove (14) is formed in supporting block (13), and supporting block (15) is movably installed in V-shaped groove (14).
2. The flatness detection jig for hardware according to claim 1, characterized in that: The U-shaped base (9) is fixedly installed with rotating shaft (16), and the top and one side of the U-shaped base (9) are fixedly installed with supporting seat (17), and one side of the U-shaped base (9) is further threadedly connected with locking bolt (18), and the bottom of the turnover platform (10) is fixedly installed with fixing ring (19), and the turnover platform (10) is rotatably installed on the rotating shaft (16) through the fixing ring (19).
3. The flatness detection jig for hardware according to claim 2, characterized in that: The first fixed shaft (20) and the second fixed shaft (21) are fixedly installed on the mounting seat (11) respectively, the U-shaped pressure piece (22) is rotatably installed on the second fixed shaft (21), and the lifting block (12) is insertedly installed on the first fixed shaft (20) and the second fixed shaft (21), and the first compression spring (23) is further sleeved on the second fixed shaft (21) between the mounting seat (11) and the lifting block (12).
4. The flatness detection jig for hardware according to claim 3, characterized in that: Two pressing blocks (24) are fixedly installed on one side of the lifting block (12).
5. The flatness detection jig for hardware according to claim 1, characterized in that: The supporting block (13) is provided with positioning grooves (25) on both sides, and the supporting block (13) is further provided with pad blocks (26) on both sides of the bottom, the third fixed shaft (27) is fixedly installed on the top of the pad block (26), and the third fixed shaft (27) extends into the positioning groove (25) through the through groove in the bottom of the positioning groove (25).
6. The flatness detection jig for hardware according to claim 5, characterized in that: The positioning blocks (28) are fixedly installed on both sides of the supporting block (15), the positioning blocks (28) are insertedly installed in the corresponding positioning grooves (25), and the telescopic grooves in the positioning blocks (28) are further insertedly installed on the corresponding third fixed shafts (27).
7. The flatness detection jig for hardware according to claim 6, characterized in that: The third fixed shaft (27) is externally sleeved with a second compression spring (29), the top of the second compression spring (29) abuts against the bottom of the positioning block (28), and the bottom of the second compression spring (29) abuts against the cushion block (26).