Parallel opening and closing positioning jig
Through the design of parallel opening and closing positioning fixtures, the top pressure decomposition of the clamping arm in the horizontal and vertical directions, combined with the support of the positioning groove, the stable clamping of the circuit board is achieved, solving the problem of unstable clamping of the circuit board in the prior art and ensuring the reliability of detection.
Patent Information
- Application Number
- CN202421956828.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When clamping existing circuit boards, there is a lack of vertical limits, resulting in inadequate clamping.
The parallel opening and closing positioning fixture is adopted to press the workpiece in the horizontal and vertical directions through the positioning and clamping surfaces of the two clamp arms at the same time, and combined with the support of the bottom end of the positioning groove, stable clamping of the circuit board is achieved.
Improves the clamping stability of the circuit board and ensures that the probe can be electrically contacted with the circuit board for detection.
Smart Images
Figure CN223051382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of workpiece clamping fixtures, in particular to a parallel opening and closing positioning fixture. Background Art
[0002] At present, when circuit boards such as PCB boards and COB boards are produced, it is generally necessary to detect the circuit boards. During the detection, usually after the circuit board is clamped, the probe is in electrical contact with the circuit board, and the probe is electrically connected to the test equipment. Therefore, when the probe is in electrical contact with the circuit, the circuit board can be detected through the test equipment.
[0003] However, when the existing circuit boards are clamped, the circuit boards are mainly clamped and fixed by the clamping jaws left and right. In this way, there is no limit in the up and down direction, and the clamping of the circuit boards is not stable enough. Summary of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a parallel opening and closing positioning fixture, which can press the workpiece in both the horizontal direction and the vertical direction by the positioning clamping surfaces of the clamping arms after the two clamping arms approach the positioning groove, so as to improve the clamping stability.
[0005] The purpose of the utility model is realized by the following technical solutions:
[0006] A parallel opening and closing positioning fixture includes:
[0007] A positioning component, which includes a positioning seat, a clamping arm mechanism and a clamping arm driving member. A positioning groove for clamping a workpiece is provided on the positioning seat. The clamping arm mechanism includes two clamping arms, and the two clamping arms are respectively arranged on both sides of the positioning groove. The clamping arm driving member is used to drive the two clamping arms to approach or move away from the positioning groove; a positioning clamping surface is provided on the clamping arm, and the positioning clamping surface is used to press the workpiece in the horizontal direction and the vertical direction during the process that the clamping arm approaches the positioning groove;
[0008] A probe component, which includes a probe and a probe driving member. The probe is arranged below the positioning groove; the probe driving member is used to drive the probe to move in the vertical direction.
[0009] Further, the positioning clamping surface is a positioning inclined surface.
[0010] Further, a positioning block is provided at the end of the clamping arm, and the positioning clamping surface is arranged on the inner side of the positioning block.
[0011] Further, the positioning block includes a connecting section and a positioning section. The connecting section is connected to the end of the clamping arm, and the positioning section extends out of the clamping arm and is inclined to connect with the connecting section; the positioning clamping surface is formed on the inner side of the positioning section.
[0012] Further, positioning notches are provided on both sides of the positioning groove, and guiding inclined surfaces that cooperate with the positioning inclined surfaces are provided in the positioning notches; the positioning block extends into the positioning groove from the positioning notch.
[0013] Further, the probe assembly includes a probe base, and the probe base and the positioning base are slidably mounted on the positioning base through a first guiding mechanism; the probe driving member is used to drive the probe base to move; the probe is mounted on the probe base.
[0014] Further, an elastic member is connected between the probe and the probe base.
[0015] Further, the first guiding mechanism includes a first slider and a first sliding rail, the first sliding rail is provided on the positioning base, and the first slider is provided on the probe base; the first slider is slidably engaged with the first sliding rail.
[0016] Further, the clamping arm is slidably mounted on the top end of the positioning base through a second guiding mechanism; the second guiding mechanism includes a second sliding rail and a second slider, the second sliding rail is provided on the top end of the positioning base, and the second slider is provided at the end of the clamping arm; the second slider is slidably engaged with the second sliding rail.
[0017] Further, a positioning plate protrudes from the top end of the positioning base, the positioning groove is provided on the positioning plate and is open at the top and bottom.
[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0019] The two clamping arms simultaneously press the workpiece in the horizontal direction, and the positioning clamping surface can decompose the horizontal pressing force into a vertical pressing force. In this way, the positioning clamping surfaces of the two clamping arms can simultaneously press the circuit board inward and downward on both sides of the workpiece. Since the bottom end of the positioning groove has a support, the circuit board can be positioned and clamped tightly in the positioning groove, realizing stable clamping of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic structural diagram of the use state of the positioning fixture of the present utility model;
[0021] Figure 2 is a schematic structural diagram of the positioning fixture of the present utility model;
[0022] Figure 3 is a schematic structural diagram of another perspective of the positioning fixture of the present utility model.
[0023] In the figure: 10, positioning base; 11, positioning groove; 12, positioning plate; 13, positioning notch; 14, first slide rail; 21, clamping arm; 22, positioning block; 221, positioning clamping surface; 222, positioning section; 223, connecting section; 23, clamping arm driving member; 24, first slider; 31, probe driving member; 32, probe base; 33, probe; 34, elastic member. Detailed implementation manners
[0024] Next, in combination with the accompanying drawings and specific implementation manners, the present utility model will be further described:
[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.
[0027] As Figure 1 、 Figure 2 And Figure 3 A parallel opening and closing positioning jig shown includes a positioning component and a probe component. The positioning component includes a positioning base 10, a clamping arm mechanism, and a clamping arm driving member 23. A positioning groove 11 is provided on the positioning base 10, and this positioning groove 11 is used for clamping the positioning groove 11 of the workpiece. The above-mentioned clamping arm mechanism includes two clamping arms 21, and the two clamping arms 21 are respectively arranged on both sides of the positioning groove 11. The clamping arm driving member 23 can drive the two clamping arms 21 to approach or move away from the positioning groove 11; a positioning clamping surface 221 is provided on the clamping arm 21. During the process of the clamping arm 21 approaching the positioning groove 11, the positioning clamping surface 221 can press the workpiece in the horizontal direction and the vertical direction.
[0028] In addition, the probe component includes a probe 33 and a probe driving member 31. The probe 33 is arranged below the positioning groove 11; the probe driving member 31 can drive the probe 33 to move in the vertical direction.
[0029] On the basis of the above structure, when using the parallel opening and closing positioning fixture of the present utility model, the circuit board workpiece is placed in the positioning groove 11, and the circuit board workpiece is initially positioned by the positioning groove 11. Then, the clamping arm driving member 23 drives the two clamping arms 21 to move closer to the positioning groove 11 at the same time. At this time, the positioning and clamping surface 221 of the clamping arm 21 can extend into the positioning groove 11 to contact the circuit board workpiece. Specifically, the two clamping arms 21 simultaneously press the workpiece in the horizontal direction, and the positioning and clamping surface 221 can decompose the horizontal pressing force into a vertical pressing force. In this way, the positioning and clamping surfaces 221 of the two clamping arms 21 can simultaneously press the circuit board inward and downward on both sides of the workpiece. Since the bottom end of the positioning groove 11 has a support, the circuit board can be positioned and pressed tightly in the positioning groove 11, realizing the stable clamping of the circuit board.
[0030] After that, the probe driving member 31 drives the probe 33 to move upward. The probe 33 can extend upward into the positioning groove 11, and the probe 33 can make electrical contact with the circuit board, thereby realizing the positioning detection of the circuit board.
[0031] Further, the positioning and clamping surface 221 is a positioning inclined surface, and the positioning inclined surface approaches the circuit board in the horizontal direction. In this way, after the positioning inclined surface contacts the circuit board, as the clamping arm 21 continues to approach, the positioning inclined surface can press in the horizontal direction and the vertical direction to realize clamping.
[0032] Of course, the above positioning and clamping surface 221 can also be selected as an arc surface, and the arc surface can also decompose the force, decomposing the horizontal force into a vertical force.
[0033] Further, a positioning block 22 can be provided at the end of the clamping arm 21, and the positioning and clamping surface 221 is provided on the inner side of the positioning block 22. In this way, the positioning and clamping surface 221 can be machined separately on the positioning block 22, and then the positioning block 22 is clamped on the clamping arm 21 through structures such as screws or bolts.
[0034] More specifically, the positioning block 22 in this embodiment includes a connecting section 223 and a positioning section 222. The connecting section 223 is connected to the end of the clamping arm 21. A through hole can be provided on the connecting section 223, and a threaded hole is provided on the clamping arm 21. In this way, a bolt or a screw can pass through the through hole and be screwed into the threaded hole to realize the clamping of the connecting section 223. The above positioning section 222 extends out of the clamping arm 21 and is inclinedly connected to the connecting section 223. Since the positioning section 222 is inclinedly connected to the connecting section 223, the above positioning and clamping surface 221 is formed on the inner side of the positioning section 222.
[0035] After the clamping arm 21 approaches the positioning groove 11, the inclined positioning section 222 can press the circuit board to realize positioning and clamping.
[0036] Further, positioning notches 13 may be provided on both sides of the positioning groove 11. The positioning notches 13 are provided with guiding inclined surfaces that cooperate with the positioning inclined surfaces. After the clamping arm 21 moves close to the positioning groove 11, the positioning section 222 of the positioning block 22 can extend into the positioning groove 11 through the positioning notch 13 to achieve positioning and clamping.
[0037] Further, to facilitate the clamping of the probe 33, the probe assembly includes a probe base 32. The probe base 32 and the positioning base 10 are slidably mounted on the positioning base 10 through a first guiding mechanism. The probe driving member 31 can drive the probe base 32 to move, and the probe 33 is mounted on the probe base 32. In this way, when performing the contact detection of the probe 33, the probe driving member 31 can drive the probe base 32 to move upward. The probe 33 on the probe base 32 can extend upward into the positioning groove 11, and the probe 33 can be in electrical contact with the circuit board for detection.
[0038] The probe base 32 can be guided to move up and down through the first guiding mechanism, so that the up and down movement of the probe 33 is stable, preventing the probe 33 from deflecting and reducing the occurrence of probe deflection during the detection process.
[0039] Further, an elastic member 34 is connected between the probe 33 and the probe base 32. The elastic member 34 is pressed after the probe 33 moves upward. The elastic member 34 provides a reset elastic stress, which can keep the probe 33 in a pressed state and make the testing process stable.
[0040] It should be noted that the above elastic member can be implemented by using structures such as springs or elastic rubber blocks in the prior art.
[0041] More specifically, the first guiding mechanism includes a first slider 24 and a first sliding rail 14. The first sliding rail 14 is provided on the positioning base 10, and the first slider 24 is provided on the probe base 32; the first slider 24 is slidably engaged with the first sliding rail 14. In this way, the probe base 32 can achieve stable up and down movement of the probe 33 through the sliding cooperation between the first slider 24 and the first sliding rail 14.
[0042] Further, the clamping arm 21 is slidably mounted on the top end of the positioning base 10 through a second guiding mechanism; the second guiding mechanism includes a second sliding rail and a second slider. The second sliding rail is provided on the top end of the positioning base 10, and the second slider is provided at the end of the clamping arm 21; the second slider is slidably engaged with the second sliding rail. In this way, the two clamping arms 21 can achieve sliding cooperation through the second slider and the second sliding rail, guiding the two clamping arms 21 to slide stably.
[0043] Further, in order to facilitate the detection of the workpiece in the positioning groove 11, a positioning plate 12 may be protruded from the top end of the positioning seat 10. The positioning plate 12 may form an installation space at an interval from the bottom end of the positioning seat 10, so that the above probe assembly can be installed in the installation space below the positioning plate 12, and thus the probe 33 can move up and down below the positioning plate 12. The positioning groove 11 is provided on the positioning plate 12 and has upper and lower openings. On the basis of this structure, a supporting step is provided on the side wall of the positioning groove 11. After the circuit board is clamped in the positioning groove 11, the bottom edge of the circuit board can be supported by the supporting step on the side wall of the positioning groove 11, and the probe 33 can extend into or withdraw from the circuit board through the lower opening of the positioning groove 11 to complete the detection.
[0044] Of course, it is also possible to directly provide a through-hole structure at the bottom end of the positioning groove. After the circuit board is clamped into the positioning groove, the test circuit on the circuit board can correspond to the through-hole position, and then the probe moves upward to make electrical contact with the circuit board through the through-hole.
[0045] It should also be noted that the above clamping arm driving member and the probe driving member can both be selected from structures such as cylinders or electric push rods in the prior art. The probe can be selected as a test needle in the prior art and can be specifically selected according to actual needs.
[0046] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.
Claims
1. A parallel opening and closing positioning fixture, characterized in that: include, A positioning assembly, the positioning assembly includes a positioning seat, a clamping arm mechanism and a clamping arm driving member, the positioning seat is provided with a positioning groove for clamping a workpiece, the clamping arm mechanism includes two clamping arms, the two clamping arms are respectively arranged on both sides of the positioning groove, and the clamping arm driving member is used to drive the two clamping arms to approach or move away from the positioning groove; the clamping arm is provided with a positioning clamping surface, and the positioning clamping surface is used to press the workpiece in the horizontal direction and the vertical direction when the clamping arm approaches the positioning groove; The probe assembly comprises a probe and a probe driving member, wherein the probe is arranged below the positioning groove; and the probe driving member is used for driving the probe to move in a vertical direction.
2. The parallel opening and closing positioning fixture according to claim 1, characterized in that: The positioning clamping surface is a positioning inclined surface.
3. The parallel opening and closing positioning fixture according to claim 2, characterized in that: A positioning block is provided at the end of the clamping arm, and the positioning clamping surface is provided on the inner side of the positioning block.
4. The parallel opening and closing positioning fixture according to claim 3, characterized in that: The positioning block includes a connecting section and a positioning section, wherein the connecting section is connected to the end of the clamp arm, and the positioning section extends out of the clamp arm and is obliquely connected to the connecting section; the positioning clamping surface is formed on the inner side of the positioning section.
5. The parallel opening and closing positioning fixture according to claim 3, characterized in that: Positioning notches are provided on both sides of the positioning groove, and the positioning notches are provided with guiding inclined surfaces that match the positioning inclined surfaces; the positioning block extends into the positioning groove through the positioning notches.
6. The parallel opening and closing positioning fixture according to any one of claims 1 to 5, characterized in that: The probe assembly comprises a probe seat, the probe seat and the positioning seat are slidably mounted on the positioning seat through a first guiding mechanism; the probe driving member is used to drive the probe seat to move; and the probe is mounted on the probe seat.
7. The parallel opening and closing positioning fixture according to claim 6, characterized in that: An elastic component is connected between the probe and the probe seat.
8. The parallel opening and closing positioning fixture according to claim 6, characterized in that: The first guiding mechanism includes a first slider and a first slide rail. The first slide rail is arranged on the positioning seat, and the first slider is arranged on the probe seat. The first slider is slidably matched with the first slide rail.
9. The parallel opening and closing positioning fixture according to any one of claims 1 to 5, characterized in that: The clamping arm is slidably mounted on the top of the positioning seat through a second guiding mechanism; the second guiding mechanism includes a second slide rail and a second slider, the second slide rail is arranged at the top of the positioning seat, and the second slider is arranged at the end of the clamping arm; the second slider is slidably matched with the second slide rail.
10. The parallel opening and closing positioning fixture according to any one of claims 1 to 5, characterized in that: A positioning plate is protrudingly provided on the top end of the positioning seat, and the positioning groove is arranged on the positioning plate and has upper and lower openings.