Workpiece detection tool capable of rotating in multiple directions and detection system comprising same

Abstract

The utility model discloses a workpiece detection tool capable of rotating in multiple directions and a detection system comprising the same, the workpiece detection tool comprises a base, a first movable block, a second movable block and a fixed part, the top of the base is concavely provided with a first arc-shaped accommodating groove; the first movable block and the base are rotationally connected to the first rotating shaft, the first movable block rotates along the first arc-shaped containing groove, and a second arc-shaped containing groove is formed in the top of the first movable block in an inwards-concave mode. The second movable block and the first movable block are rotationally connected to the second rotating shaft, and the second movable block rotates along the second arc-shaped containing groove. The first rotating shaft and the second rotating shaft are located on different planes and are perpendicular to each other. The fixing piece is used for fixing parts. A traditional single-dimension rotating tool is improved into a two-dimension rotating tool, and a translation function which is not commonly used in an original tool is omitted, so that on the premise that the structure of the tool is simplified, the multi-dimension operation requirement of a complex microstructure modeling part is met, and operation is easy and saves labor.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting design technology, and in particular to a multi-directional rotatable workpiece inspection fixture and an inspection system comprising the fixture. Background Technology

[0002] The design, processing, manufacturing, and light distribution requirements for automotive headlight optical components are increasingly demanding, and the shapes and performance of headlights are becoming more complex and sophisticated. This inevitably necessitates more precise mold manufacturing for formed optical components, especially for extremely fine patterns and microstructures. To control the processing and manufacturing effects of these complex and high-precision optical mold components, current technology generally uses industrial video microscopes for observation during the effect inspection stage. Figure 1 Its working principle is to place part 13 on platform 1, adjust the magnification of video microscope 2, and observe the surface quality of part 13 through the connected display screen 3.

[0003] The platform 1 used to place the inspected part 13 is fixed. In order to move and adjust the angle of the inspected part during the inspection process, the applicant designed a clamping fixture (application number CN222609330U). This fixture can only realize one-dimensional rotation and one-dimensional translation. The rotation can adjust the angle of the part, and the translation can adjust the position of the part so that it is below the video microscope. However, in actual use, the translation is not used frequently. After the fixture is placed, the rotation of the part will not cause it to exceed the observation area of ​​the video microscope. With the diversification of automotive headlight structures, when the microstructure of the inspected part is complex, and multi-directional operation and observation are desired, the existing clamping fixture has a single rotation direction. If rotation in other dimensions is required, the fixture can only be rotated as a whole, which leads to difficult operation and low operation accuracy.

[0004] In addition, existing clamping fixtures use locating pins to fix the parts being inspected, which makes it difficult to fix the parts when they are irregularly shaped or larger than the platform. Utility Model Content

[0005] To address the technical problem that existing clamping fixtures have a single operating direction and are not suitable for detecting vehicle lights with complex microstructures, this utility model provides a multi-directional rotating workpiece detection fixture and a detection system including the fixture to solve the above problems.

[0006] This utility model proposes a multi-directional rotatable workpiece inspection fixture and an inspection system including the fixture, comprising a base, a first movable block, a second movable block, and a fixing member. The top of the base is recessed with a first arc-shaped receiving groove. The first movable block is rotatably connected to the base via a first rotating shaft and rotates along the first arc-shaped receiving groove. The top of the first movable block is recessed with a second arc-shaped receiving groove. The second movable block is rotatably connected to the first movable block via a second rotating shaft and rotates along the second arc-shaped receiving groove. The first rotating shaft and the second rotating shaft are located in different planes and are perpendicular to each other. The fixing member is fixed to the top of the second movable block for fixing the part.

[0007] In an optional embodiment of this utility model, the fixing member is a magnetic suction cup.

[0008] In an optional embodiment of this utility model, the top of the second movable block is provided with a recessed groove and a mounting hole extending downward from the recessed groove. The magnetic chuck is placed in the recessed groove, the mounting post of the magnetic chuck is located in the mounting hole, and the screw passes through the bottom of the second movable block and connects with the mounting post.

[0009] In an optional embodiment of this utility model, the second movable block has an arc-shaped outer wall surface that mates with the second arc-shaped receiving groove, and the first movable block has an arc-shaped outer wall surface that mates with the first arc-shaped receiving groove.

[0010] In an optional embodiment of this utility model, the base is further provided with at least one first elastic positioning structure that mates with the arc-shaped outer wall surface of the first movable block; the first movable block is further provided with at least one second elastic positioning structure that mates with the arc-shaped outer wall surface of the second movable block.

[0011] In an optional embodiment of this utility model, the first elastic positioning structure includes at least a telescopically oriented pin disposed in the wall of the first arc-shaped receiving groove, and an elastic element used in conjunction with the pin; and a plurality of positioning holes are provided at intervals along the rotation trajectory on the arc-shaped outer wall surface of the first movable block; the pin has a pin head suitable for insertion into any one of the positioning holes.

[0012] In an optional embodiment of this utility model, the first arc-shaped receiving groove is a semi-cylindrical groove that lies flat, and the inner wall surface of the base at both ends of the first arc-shaped receiving groove is a plane, through which the first rotating shaft passes; the second arc-shaped receiving groove is a semi-cylindrical groove that lies flat, and the inner wall surface of the first movable block at both ends of the second arc-shaped receiving groove is a plane, through which the second rotating shaft passes.

[0013] In an optional embodiment of this utility model, the second elastic positioning structure is the same as the first elastic positioning structure.

[0014] This utility model also proposes a detection system, including a platform, a video microscope, a display screen, and the aforementioned multi-directional rotatable workpiece detection fixture. The video microscope is fixed above the platform, the multi-directional rotatable workpiece detection fixture is placed on the platform, and the display screen is electrically connected to the video microscope.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model improves the traditional single-dimensional rotation tooling into a two-dimensional rotation tooling, and cancels the translation function that is not commonly used in the original tooling. Thus, under the premise of simplifying the tooling structure, it meets the multi-dimensional operation requirements of complex microstructure parts, and the operation is simple and labor-saving.

[0017] (2) This utility model uses a magnetic suction cup to adsorb parts. The magnetic suction cup has a wider and more convenient table surface, which improves efficiency and safety. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of a detection system in the prior art;

[0020] Figure 2 This is a perspective view of the multi-directional rotatable workpiece inspection fixture described in this utility model;

[0021] Figure 3 This is the front view of the second movable block in this utility model;

[0022] Figure 4 This is a cross-sectional view of the second movable block in this utility model;

[0023] Figure 5 This is a schematic diagram of the assembly of the second movable block and the magnetic chuck in this utility model;

[0024] Figure 6 This is a perspective view of the base in this utility model;

[0025] Figure 7 This is a sectional view of the base in this utility model;

[0026] Figure 8 This is a cross-sectional view of the first movable block in this utility model;

[0027] Figure 9 yes Figure 7 The first elastic positioning structure at point a and Figure 8 Enlarged view of the second elastic positioning structure at point b in the middle;

[0028] Figure 10This is a schematic diagram of a specific implementation of the detection system described in this utility model.

[0029] In the diagram, 1. Platform, 2. Video microscope, 3. Display screen, 4. Base, 5. First movable block, 6. Second movable block, 7. Fixture, 8. First arc-shaped receiving groove, 9. First rotating shaft, 10. Second arc-shaped receiving groove, 11. Second rotating shaft, 12. Screw, 13. Part, 14. First elastic positioning structure, 15. Second elastic positioning structure, 16. Shift post, 17. Elastic element, 18. Positioning hole, 19. Shift head, 20. Sliding cavity, 21. Limiting ring, 22. Annular limiting part, 23. Sinking groove, 24. Mounting hole, 25. Magnetic chuck, 2501. Mounting post, 26. Multi-directional rotatable workpiece inspection fixture, 27. Clamping fixture, 28. Base. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] Example 1

[0032] like Figures 2-6 As shown, a multi-directional rotatable workpiece inspection fixture includes a base 4, a first movable block 5, a second movable block 6, and a fixing member 7. The top of the base 4 is recessed with a first arc-shaped receiving groove 8. The first movable block 5 is rotatably connected to the base 4 via a first rotating shaft 9, and the first movable block 5 rotates along the first arc-shaped receiving groove 8. The top of the first movable block 5 is recessed with a second arc-shaped receiving groove 10. The second movable block 6 is rotatably connected to the first movable block 5 via a second rotating shaft 11, and the second movable block 6 rotates along the second arc-shaped receiving groove 10. The first rotating shaft 9 and the second rotating shaft 11 are located in different planes and are perpendicular to each other. The fixing member 7 is fixed to the top of the second movable block 6 for fixing part 13.

[0033] like Figure 2 As shown, the first movable block 5 is located inside the base 4, and the second movable block 6 is located inside the first movable block 5, according to... Figure 2 The diagram defines a three-dimensional coordinate system. The first rotating axis 9 is arranged along the X-axis, and the first movable block 5 rotates around the first rotating axis 9 in the YOZ plane. The second rotating axis 11 is arranged along the Y-axis, and the second movable block 6 rotates around the second rotating axis 11 in the XOZ plane. Therefore, the angle adjustment of part 13 in multiple directions can be achieved through the first movable block 5 and the second movable block 6.

[0034] When in use, first place the entire fixture in a suitable position on platform 1, then rotate the first movable block 5 and the second movable block 6 in sequence so that the corresponding observation point of part 13 is facing the video microscope 2.

[0035] The first movable block 5 does not need to contact the inner wall of the first arc-shaped receiving groove 8, and the rotation direction is only guaranteed by the first rotating shaft 9. The shape of the outer wall of the first movable block 5 can be set arbitrarily, as long as it does not interfere with the inner wall of the first arc-shaped receiving groove 8. In order to improve motion stability, the first movable block 5 in this embodiment has an arc-shaped outer wall that mates with the first arc-shaped receiving groove 8. Similarly, the second movable block 6 has an arc-shaped outer wall that mates with the second arc-shaped receiving groove 10. The specific structure is as follows: Figures 6-8 As shown, the first arc-shaped receiving groove 8 is a semi-cylindrical groove that lies flat. The inner wall surface of the base 4 at both ends of the first arc-shaped receiving groove 8 is a plane, and the first rotating shaft 9 is set through the plane. The second arc-shaped receiving groove 10 is a semi-cylindrical groove that lies flat. The inner wall surface of the first movable block 5 at both ends of the second arc-shaped receiving groove 10 is a plane, and the second rotating shaft 11 is set through the plane.

[0036] After the first movable block 5 and the second movable block 6 are rotated to a certain angle, they need to be fixed. This can be achieved by using a pin and a pin hole to engage, or by using... Figure 7 and Figure 8 The structure shown includes a base 4 with at least one first elastic positioning structure 14 that mates with the arc-shaped outer wall of the first movable block 5; and a first movable block 5 with at least one second elastic positioning structure 15 that mates with the arc-shaped outer wall of the second movable block 6. The second elastic positioning structure 15 and the first elastic positioning structure 14 can be the same.

[0037] The specific structure is described using the first elastic positioning structure 14 as an example: Figure 9 As shown, the first elastic positioning structure 14 includes at least a telescopically adaptable lever 16 disposed in the groove wall of the first arc-shaped receiving groove 8, and an elastic element 17 that cooperates with the lever 16; and a plurality of positioning holes 18 spaced apart along its rotation trajectory on the arc-shaped outer wall surface of the first movable block 5; the lever 16 has a lever head 19 adapted to be inserted into any one of the positioning holes 18. With this structure, when the first movable block 5 rotates to a certain position in the first arc-shaped receiving groove 8, the lever head 19 is precisely engaged in the positioning hole 18, thereby fixing the position of the first movable block 5.

[0038] For the dial head 19 itself, a hemispherical structure can be adopted. In this way, when it is necessary to rotate the first movable block 5, as long as a turning force is applied to the first movable block 5, the first movable block 5 can generate pressure on the outer wall of the dial head 19, so that it is pressed into the groove wall of the first arc-shaped receiving groove 8. In this way, the dial head 19 will not constitute a resistance to the rotation of the first movable block 5 in the first arc-shaped receiving groove 8.

[0039] like Figure 9 As shown, the first elastic positioning structure 14 used in this embodiment also includes a base 28 for being fitted into the groove wall of the first arc-shaped receiving groove 8; the base 28 has a sliding cavity 20 formed therein for slidingly engaging with the shift post 16; and the shift post 16 has a receiving cavity that is suitable for the elastic member 17 to be partially embedded and communicates with the sliding cavity 20. In this structure, it is also necessary to note that a limiting ring 21 with an annular protrusion is provided on the shift post 16, and an annular limiting portion 22 that engages with the limiting ring 21 is provided on the inner wall of the sliding cavity 20. Based on this structure, the shift post 16 will not detach from the sliding cavity 20.

[0040] In summary, this utility model rotates part 13 from two dimensions, enabling part 13 to rotate to any angle in space, thus meeting the inspection requirements of parts 13 with complex microstructures.

[0041] Example 2

[0042] Based on Embodiment 1, the fixing component 7 is a magnetic suction cup 25. Compared with the pin fixing in the prior art, the upper surface of the magnetic suction cup 25 is a smooth plane. The part 13 can be placed directly on the magnetic suction cup 25, and the metal material at the bottom of the part 13 will be attracted to the magnetic suction cup 25, which has higher installation efficiency and better safety and stability.

[0043] The mounting structure of the magnetic chuck 25 is as follows: Figure 4 and Figure 5 As shown, the top of the second movable block 6 is provided with a recessed groove 23 and a mounting hole 24 extending downward from the recessed groove 23. The magnetic chuck 25 is placed in the recessed groove 23, and the mounting post 2501 of the magnetic chuck 25 is located in the mounting hole 24. The screw 12 passes through the bottom of the second movable block 6 and connects with the mounting post 2501. The recessed groove 23 allows the magnetic chuck 25 to be embedded inside the second movable block 6, and the upper surface of the magnetic chuck 25 is flush with the upper surface of the second movable block 6. The mounting post 2501 can increase the length of the threaded connection.

[0044] Example 3

[0045] An inspection system includes a platform 1, a video microscope 2, a display screen 3, and the aforementioned multi-directional rotatable workpiece inspection fixture, such as... Figure 1 and Figure 10As shown, the difference between the detection system of this utility model and the detection system in the prior art is that the traditional clamping fixture 27 is replaced with the multi-directional rotatable workpiece detection fixture 26 described in this utility model. The video microscope 2 is fixed above the platform 1, and the multi-directional rotatable workpiece detection fixture is placed on the platform 1. The display screen 3 is electrically connected to the video microscope 2. For the adapted video microscope 2 here, any mature means in the prior art can be selected, and this embodiment does not make an absolute limitation.

[0046] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0048] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multi-directional rotatable workpiece inspection fixture, characterized in that, include: The base (4) has a first arc-shaped receiving groove (8) recessed at the top. The first movable block (5) is rotatably connected to the base (4) on the first rotating shaft (9), and the first movable block (5) rotates along the first arc-shaped receiving groove (8). The top of the first movable block (5) is recessed with a second arc-shaped receiving groove (10). The second movable block (6) is rotatably connected to the first movable block (5) on the second rotating shaft (11), and the second movable block (6) rotates along the second arc-shaped receiving groove (10); the first rotating shaft (9) and the second rotating shaft (11) are located in different planes and are perpendicular to each other; The fastener (7) is fixed to the top of the second movable block (6) and is used to fix the part (13).

2. The multi-directional rotatable workpiece inspection fixture according to claim 1, characterized in that: The fastener (7) is a magnetic chuck (25).

3. The multi-directional rotatable workpiece inspection fixture according to claim 2, characterized in that: The top of the second movable block (6) is provided with a recessed groove (23) and a mounting hole (24) extending downward from the recessed groove (23). The magnetic chuck (25) is placed in the recessed groove (23), and the mounting post (2501) of the magnetic chuck (25) is located in the mounting hole (24). The screw (12) passes through the bottom of the second movable block (6) and connects to the mounting post (2501).

4. The multi-directional rotatable workpiece inspection fixture according to claim 1, characterized in that: The second movable block (6) has an arc-shaped outer wall surface that mates with the second arc-shaped receiving groove (10), and the first movable block (5) has an arc-shaped outer wall surface that mates with the first arc-shaped receiving groove (8).

5. The multi-directional rotatable workpiece inspection fixture according to claim 4, characterized in that: The base (4) is also provided with at least one first elastic positioning structure (14) that cooperates with the arc-shaped outer wall surface of the first movable block (5); the first movable block (5) is also provided with at least one second elastic positioning structure (15) that cooperates with the arc-shaped outer wall surface of the second movable block (6).

6. The multi-directional rotatable workpiece inspection fixture according to claim 5, characterized in that: The first elastic positioning structure (14) includes at least a telescopic pin (16) provided in the groove wall of the first arc-shaped receiving groove (8), and an elastic element (17) used in conjunction with the pin (16); and a plurality of positioning holes (18) are provided at intervals along the rotation trajectory on the arc-shaped outer wall surface of the first movable block (5); the pin (16) has a pin (19) suitable for insertion into any one of the positioning holes (18).

7. The multi-directional rotatable workpiece inspection fixture according to claim 1, characterized in that: The first arc-shaped receiving groove (8) is a semi-cylindrical groove that lies flat. The inner wall surface of the base (4) at both ends of the first arc-shaped receiving groove (8) is a plane, and the first rotating shaft (9) passes through this plane. The second arc-shaped receiving groove (10) is a semi-cylindrical groove that lies flat. The inner wall surface of the first movable block (5) at both ends of the second arc-shaped receiving groove (10) is a plane, and the second rotating shaft (11) passes through this plane.

8. The multi-directional rotatable workpiece inspection fixture according to claim 6, characterized in that: The second elastic positioning structure (15) is the same as the first elastic positioning structure (14).

9. A detection system, characterized in that: The device includes a platform (1), a video microscope (2), a display screen (3), and a multi-directional rotatable workpiece inspection fixture as described in any one of claims 1-8. The video microscope (2) is fixed above the platform (1), the multi-directional rotatable workpiece inspection fixture is placed on the platform (1), and the display screen (3) is electrically connected to the video microscope (2).

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