A device for realizing three-dimensional surface topography measurement of a workpiece

Abstract

This utility model discloses a device for measuring the three-dimensional surface morphology of a workpiece, including a base, a detection platform fixedly installed at the top of the base, an X-axis seat fixedly installed at the top of the detection platform, a Y-axis seat fixedly installed at the top of the X-axis seat, a Z-axis seat provided at one end of the Y-axis seat, a mounting shaft fixedly installed at the bottom of the Z-axis seat, a detection probe provided at the bottom of the mounting shaft, a mounting groove provided at the bottom of the mounting shaft, and a mounting rod fixedly installed at the top of the detection probe, with the mounting rod fitting into the mounting groove. In this utility model, pressing the pressing plate compresses the return spring, separating the limiting groove from the limiting block, allowing the mounting rod to be easily pulled out for disassembly. During installation, the new detection probe mounting rod is aligned with the mounting groove and inserted, the pressing plate is released, the return spring returns to its deformation, and the limiting groove and the limiting block re-fit and engage, achieving rapid installation and fixation, increasing the convenience of detection probe installation and ease of use.

Description

Technical Field

[0001] This utility model relates to the field of workpiece three-dimensional morphology measurement technology, specifically a device for measuring the three-dimensional surface morphology of a workpiece. Background Technology

[0002] A workpiece refers to a component or semi-finished product that needs to be processed, treated, or assembled during the manufacturing process. It usually has specific shape, size, precision requirements, and surface quality requirements. A three-dimensional surface topography measuring device can accurately obtain information such as the shape, size, and roughness of the workpiece surface, thereby determining whether the workpiece meets the design requirements. Three-dimensional surface topography measuring devices are divided into contact and non-contact types. Contact types include coordinate measuring machines and profilometers, while non-contact types include laser triangulation instruments, structured light measurement systems, and electron microscopes.

[0003] Coordinate measuring machines (CMMs) acquire three-dimensional coordinate data by having a probe contact the workpiece surface, thereby obtaining the workpiece's surface morphology information. They have high measurement accuracy and can be used to measure workpieces of various shapes. However, after prolonged measurement, the contact between the probe and the workpiece can cause friction and wear, affecting its use. Most probes are not easy to disassemble and replace, leading to measurement errors. Utility Model Content

[0004] The purpose of this invention is to address the problem that coordinate measuring machines (CMMs) acquire three-dimensional coordinate data by contacting the probe with the workpiece surface, thereby obtaining the workpiece's surface morphology information with high measurement accuracy and applicable to workpieces of various shapes. However, after prolonged measurement, friction occurs between the probe and the workpiece, causing wear and affecting its use. Furthermore, most probes are not easily disassembled or replaced, leading to measurement errors. This invention provides a device for measuring the three-dimensional surface morphology of workpieces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for measuring the three-dimensional surface morphology of a workpiece, comprising a base, a detection platform fixedly mounted on the top of the base, an X-axis seat fixedly mounted on the top of the detection platform, a Y-axis seat fixedly mounted on the top of the X-axis seat, a Z-axis seat provided at one end of the Y-axis seat, a mounting shaft fixedly mounted at the bottom of the Z-axis seat, a detection probe provided at the bottom of the mounting shaft, a mounting groove provided at the bottom of the mounting shaft, and a mounting rod fixedly mounted on the top of the detection probe, the mounting rod being adapted to the mounting groove, a mounting seat one fixedly mounted on one end of the mounting shaft, and a mounting seat two fixedly mounted on one end of the detection probe, a limiting block fixedly mounted inside the mounting seat one, a hollow groove provided inside the mounting seat two, and a pressing plate rotatably connected inside the hollow groove, a limiting groove provided at the top of the pressing plate, the limiting groove being adapted to the limiting block.

[0006] As a further improvement of this utility model: a reset spring is fixedly installed inside the hollow groove, and one end of the reset spring is fixedly installed to the bottom end of the pressing plate.

[0007] As a further embodiment of this utility model: a sliding groove is provided at the top of the detection table, and the sliding grooves are symmetrically provided at the top of the detection table. The sliding groove is located directly below the detection probe. A sliding block is slidably connected inside the sliding groove, and a clamping block for clamping the workpiece is provided at the top of the sliding block.

[0008] As a further embodiment of this utility model: a threaded rod is fixedly installed at the bottom of the clamping block, and a threaded groove is opened at the top of the sliding block. The threaded rod is adapted to the threaded groove, and an anti-slip pad block to increase clamping friction is fixedly installed at one end of the clamping block.

[0009] As a further embodiment of this utility model: a guide slider is symmetrically fixedly installed inside the sliding groove, and guide grooves are symmetrically opened at both ends of the sliding block, and the guide grooves are adapted to the guide slider.

[0010] As a further embodiment of this utility model: the testing platform has a cavity inside, and a driving cylinder is fixedly installed at the top of the cavity. A connecting plate is fixedly installed on the output shaft at the bottom of the driving cylinder. Connecting blocks one are symmetrically fixedly installed at both ends of the connecting plate. Connecting block two is fixedly installed through the sliding groove at the bottom of the sliding block. Connecting blocks one and two are rotatably connected by a connecting arm in the middle.

[0011] As a further embodiment of this utility model: a support rod is fixedly installed at the bottom of the base for support, and the support rod is symmetrically fixedly installed at the bottom of the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, pressing the pressing plate compresses the reset spring, separating the limiting groove from the limiting block, allowing the installation rod to be easily pulled out for disassembly. During installation, the new detection probe installation rod is aligned with the installation groove and inserted. Releasing the pressing plate restores the deformation of the reset spring, and the limiting groove and the limiting block re-fit and engage, achieving quick installation and fixation, increasing the convenience of detection probe installation and ease of use.

[0014] In this invention, the connecting plate is moved by starting the drive cylinder, which makes the sliding block slide precisely in the sliding groove. The guide slider and the sliding groove ensure accurate direction, and then the clamping blocks move closer to each other to clamp the workpiece. The anti-slip pad increases friction to ensure firm clamping. When the workpiece is released, the drive cylinder simply reverses its action. The operation is simple and can quickly clamp and release the workpiece, increasing workpiece stability during measurement and improving the accuracy and efficiency of measurement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional structural diagram of mounting base one and mounting base two in this utility model;

[0017] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0018] Figure 4 This is a cross-sectional structural diagram of the testing station in this utility model;

[0019] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0020] In the diagram: 1. Base; 2. Testing platform; 3. X-axis seat; 4. Y-axis seat; 5. Z-axis seat; 6. Mounting shaft; 7. Testing probe; 8. Mounting rod; 9. Mounting groove; 10. Mounting seat one; 11. Mounting seat two; 12. Limiting block; 13. Hollow groove; 14. Pressing plate; 15. Limiting groove; 16. Return spring; 17. Cavity; 18. Drive cylinder; 19. Connecting plate; 20. Sliding groove; 21. Sliding block; 22. Guide slider; 23. Guide groove; 24. Clamping block; 25. Threaded rod; 26. Threaded groove; 27. Anti-slip pad; 28. Connecting block one; 29. ​​Connecting block two; 30. Connecting arm; 31. Support rod. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0023] Reference Figures 1 to 5 In this embodiment of the invention, a device for measuring the three-dimensional surface morphology of a workpiece includes a base 1, a detection platform 2 fixedly mounted on the top of the base 1, an X-axis seat 3 fixedly mounted on the top of the detection platform 2, a Y-axis seat 4 fixedly mounted on the top of the X-axis seat 3, a Z-axis seat 5 provided at one end of the Y-axis seat 4, a mounting shaft 6 fixedly mounted at the bottom of the Z-axis seat 5, a detection probe 7 provided at the bottom of the mounting shaft 6, a mounting groove 9 provided at the bottom of the mounting shaft 6, and a mounting rod 8 fixedly mounted on the top of the detection probe 7. The groove 9 is compatible with the mounting base 10, which is fixedly installed at one end of the mounting shaft 6. The detection probe 7 is fixedly installed at one end of the mounting base 11. The mounting base 10 has a limit block 12 fixedly installed inside. The mounting base 11 has a hollow groove 13 inside, and a pressing plate 14 is rotatably connected inside the hollow groove 13. The top of the pressing plate 14 has a limit groove 15, which is compatible with the limit block 12. A reset spring 16 is fixedly installed inside the hollow groove 13, and one end of the reset spring 16 is fixedly installed at the bottom end of the pressing plate 14.

[0024] The above scheme is adopted: the two ends of the pressing plate 14 are symmetrically fixed with rotating shafts that are rotatably connected to the empty groove 13. One end of the limiting block 12 and the side close to the pressing plate 14 is set as an inclined surface, which makes it easy to directly insert the detection probe 7 for quick installation. The inclined surface at one end of the limiting block 12 will squeeze the pressing block 14 at an angle during installation, which facilitates automatic pressing of the pressing plate 14. The outer periphery of the mounting rod 8 and the inside of the mounting groove 9 are both provided with anti-slip layers, which can increase the stability of the installation during installation.

[0025] Reference Figures 1 to 5 The top of the inspection table 2 is provided with a sliding groove 20, and the sliding groove 20 is symmetrically provided on the top of the inspection table 2. The sliding groove 20 is located directly below the inspection probe 7. A sliding block 21 is slidably connected inside the sliding groove 20, and a clamping block 24 for clamping the workpiece is provided at the top of the sliding block 21. A threaded rod 25 is fixedly installed at the bottom of the clamping block 24, and a threaded groove 26 is provided at the top of the sliding block 21. The threaded rod 25 is adapted to the threaded groove 26. An anti-slip pad 27 to increase the clamping friction is fixedly installed at one end of the clamping block 24.

[0026] The above scheme allows for the symmetrical clamping blocks 24 to clamp square workpieces, increasing the stability of workpiece measurement. At the same time, the clamping blocks 24 can be replaced through the threaded rod 25 and the threaded groove 26, making it convenient to replace the clamping blocks 24 with different shapes according to different workpiece shapes, thus facilitating the clamping of workpieces of different shapes.

[0027] Reference Figures 1 to 5 The sliding groove 20 is symmetrically fixedly installed with guide sliders 22, and the sliding block 21 is symmetrically provided with guide grooves 23 at both ends. The guide grooves 23 are adapted to the guide sliders 22. The detection table 2 is provided with a cavity 17, and a drive cylinder 18 is fixedly installed at the top of the cavity 17. A connecting plate 19 is fixedly installed on the bottom output shaft of the drive cylinder 18. A connecting block 28 is symmetrically fixedly installed at both ends of the connecting plate 19. A connecting block 29 is fixedly installed at the bottom of the sliding block 21 through the sliding groove 20. A connecting arm 30 is rotatably connected between the middle of the connecting block 28 and the connecting block 29.

[0028] Using the above scheme: when the output shaft of the drive cylinder 18 drives the connecting plate 19 to rise and fall inside the cavity 17, the connecting block 28 at both ends, the connecting block 29 at the bottom of the sliding block 21, and the connecting arm 30 in the middle of the two can drive the sliding block 21 to slide inside the sliding groove 20. The two sets of symmetrical clamping blocks 24 slide synchronously to clamp the workpiece, increasing the stability of the workpiece during measurement.

[0029] Reference Figures 1 to 5 A support rod 31 is fixedly installed at the bottom of the base 1 for support, and the support rod 31 is symmetrically fixedly installed at the bottom of the base 1.

[0030] The working principle of this utility model is as follows: When the detection probe 7 is worn, the operator presses the pressing plate 14 in the inner cavity 13 of the mounting base 2 11. At this time, the return spring 16 is compressed. As the pressing plate 14 rotates, the limiting groove 15 at its top separates from the limiting block 12 in the mounting base 10. When the limiting block 12 and the limiting groove 15 are no longer limiting, the detection probe 7 is pulled upward, so that the mounting rod 8 is pulled out from the mounting groove 9 at the bottom of the mounting shaft 6, completing the disassembly of the detection probe 7. When installing, the mounting rod 8 at the top of the new detection probe 7 is aligned with the mounting groove 9 of the mounting shaft 6 and inserted. The pressing plate 14 is released, and the return spring 16 returns to its original deformation. At this time, the limiting groove 15 at the top of the pressing plate 14 and the limiting block 12 are re-fitted and engaged, realizing the installation and fixation of the detection probe 7. When measuring the workpiece, the workpiece is placed in the middle of the clamping block 24 at the top of the detection table 2, and then the inner cavity 1 of the detection table 2 is... The drive cylinder 18 at the top of the 7 is activated, and its bottom output shaft drives the connecting plate 19 to move. The connecting blocks 28 at both ends of the connecting plate 19 move with the connecting plate 19. Since the connecting blocks 28 and the connecting blocks 29 are rotatably connected by the connecting arm 30, the movement of the connecting blocks 28 will drive the connecting arm 30 to rotate. The connecting blocks 29 are fixed to the sliding block 21. The rotation of the connecting arm 30 causes the connecting blocks 29 to drive the sliding block 21 to slide in the sliding groove 20 at the top of the detection table 2. The guide grooves 23 at both ends of the sliding block 21 slide along the guide slider 22 to ensure the accuracy of the sliding direction. The clamping block 24 at the top of the sliding block 21 moves with the sliding block 21. The two clamping blocks 24 move closer to each other and increase the friction through the anti-slip pad 27 at one end, thereby clamping the workpiece located directly below the detection probe 7. When it is necessary to release the workpiece, the drive cylinder 18 moves in the opposite direction, and the above reverse steps are repeated.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for measuring the three-dimensional surface morphology of a workpiece, comprising a base (1), a detection platform (2) fixedly mounted on the top of the base (1), an X-axis seat (3) fixedly mounted on the top of the detection platform (2), a Y-axis seat (4) fixedly mounted on the top of the X-axis seat (3), a Z-axis seat (5) provided at one end of the Y-axis seat (4), a mounting shaft (6) fixedly mounted at the bottom of the Z-axis seat (5), and a detection probe (7) provided at the bottom of the mounting shaft (6), characterized in that, The mounting shaft (6) has a mounting groove (9) at its bottom end, and the top end of the detection probe (7) is fixedly mounted with a mounting rod (8), which is compatible with the mounting groove (9). One end of the mounting shaft (6) is fixedly mounted with a mounting seat one (10), and one end of the detection probe (7) is fixedly mounted with a mounting seat two (11). The mounting seat one (10) has a limiting block (12) fixedly mounted inside, and the mounting seat two (11) has a hollow groove (13) inside, and a pressing plate (14) is rotatably connected inside the hollow groove (13). The top end of the pressing plate (14) has a limiting groove (15), which is compatible with the limiting block (12).

2. The device for measuring the three-dimensional surface morphology of a workpiece according to claim 1, characterized in that, A reset spring (16) is fixedly installed inside the empty slot (13), and one end of the reset spring (16) is fixedly installed to the bottom end of the pressing plate (14).

3. The device for measuring the three-dimensional surface morphology of a workpiece according to claim 1, characterized in that, The top of the testing table (2) is provided with a sliding groove (20), and the sliding groove (20) is symmetrically provided on the top of the testing table (2). The sliding groove (20) is located directly below the testing probe (7). A sliding block (21) is slidably connected inside the sliding groove (20), and a clamping block (24) for clamping the workpiece is provided at the top of the sliding block (21).

4. The device for measuring the three-dimensional surface morphology of a workpiece according to claim 3, characterized in that, The clamping block (24) has a threaded rod (25) fixedly installed at the bottom end, and the sliding block (21) has a threaded groove (26) at the top end. The threaded rod (25) and the threaded groove (26) are adapted to each other. One end of the clamping block (24) has an anti-slip pad (27) fixedly installed to increase the clamping friction.

5. The device for measuring the three-dimensional surface morphology of a workpiece according to claim 3, characterized in that, The sliding groove (20) is symmetrically fixedly installed with guide sliders (22), and guide grooves (23) are symmetrically opened at both ends of the sliding block (21). The guide grooves (23) are adapted to the guide sliders (22).

6. The device for measuring the three-dimensional surface morphology of a workpiece according to claim 3, characterized in that, The detection platform (2) has a cavity (17) inside, and a drive cylinder (18) is fixedly installed at the top of the cavity (17). A connecting plate (19) is fixedly installed at the bottom output shaft of the drive cylinder (18). Connecting blocks one (28) are symmetrically fixedly installed at both ends of the connecting plate (19). Connecting block two (29) is fixedly installed through the sliding groove (20) at the bottom of the sliding block (21). Connecting arm (30) is rotatably connected between the middle of connecting block one (28) and connecting block two (29).

7. The device for measuring the three-dimensional surface morphology of a workpiece according to claim 1, characterized in that, The base (1) is fixedly installed with a support rod (31) for support, and the support rod (31) is symmetrically fixedly installed at the bottom of the base (1).

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