Coupling test clamping jig compatible with PCBs of multiple sizes
By designing a coupled test fixture compatible with PCB boards of multiple sizes and utilizing the stepped structure of the slider and fixed clamp, precise alignment of the lens and chip is achieved, solving the problems of frequent fixture replacement and high cost in the existing technology, improving test accuracy and reducing costs.
Patent Information
- Application Number
- CN202422573996.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In existing optical communication plastic lens PCB coupling test devices, fixture replacement is frequent and costly, and it is difficult to be compatible with PCBs of various sizes.
A coupling test fixture compatible with PCB boards of multiple sizes was designed. Through the stepped structure of the slider and the fixed clamping block, the position of the slider was adjusted by a driving screw to achieve flexible clamping of PCB boards of different sizes and ensure the alignment of the lens and chip.
It improves the accuracy and reliability of the test, reduces the frequency of fixture replacement, and reduces application costs.
Smart Images
Figure CN223436021U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the coupling test device of optical communication plastic lens PCB board especially relates to a kind of coupling test clamping fixture compatible with multiple sizes PCB board. BACKGROUND
[0002] In the coupling test device of optical communication plastic lens PCB board, plastic lens needs to be fixed above test station, PCB is fixed at the position below test station, then the best relative position of plastic lens and chip on PCB board is found by coupling, in the prior art, the clamping fixture of PCB board for coupling test is generally prefabricated according to the shape and size of PCB board, when other plastic lens is replaced for testing each time, the assembly of upper and lower clamping needs to be replaced, so the fixture of preselected processing is more, not only more troublesome in replacement process, but also higher in application cost. UTILITY MODEL CONTENTS
[0003] The technical problem to be solved by the utility model is that, in view of the deficiencies of the prior art, a coupling test clamping fixture compatible with multiple sizes of PCB board, without repeated disassembly and assembly of the fixture and saving application cost is provided.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme.
[0005] A kind of coupling test clamping fixture compatible with multiple sizes of PCB board, it includes base, the slide rail is formed on the base, one end of the slide rail is equipped with fixed clamping block, the other end of the slide rail is equipped with fixed support block, driving screw is penetrated on the fixed support block and the both screw threads are matched, the driving screw is parallelly equipped with the upper portion of the slide rail, the slide rail is slidably connected with sliding block, the end of the driving screw is clamped in the sliding block, and the end of the driving screw is rotationally matched with the sliding block, the upper end edge of the sliding block is formed with first step mouth, the upper end edge of the fixed clamping block is formed with second step mouth, the first step mouth and the second step mouth are oppositely arranged, and the PCB to be tested is clamped between the first step mouth and the second step mouth.
[0006] Preferably, the slide rail is an I-shaped rail, and the fixed clamping block is integrally formed with the slide rail.
[0007] Preferably, the width of the fixed clamping block is the same as the width of the sliding block.
[0008] Preferably, the fixed support block is fixed to the end of the slide rail by a screw.
[0009] Preferably, the inner side of the sliding block is formed with a bearing accommodating opening, the end of the driving screw is fixed with an end shaft, a bearing is sleeved on the end shaft, and the bearing is clamped in the bearing accommodating opening.
[0010] Preferably, an end cap is formed at one end of the driving screw away from the sliding block, and a through hole is formed in the side of the end cap.
[0011] Preferably, a base is included, the bottom of the base is fixedly connected with the base, and a plurality of screw holes are formed in the base.
[0012] In the coupling test clamping jig compatible with multiple sizes of PCBs, the sliding block is slidably arranged on the slide rail, the first step opening at the upper end of the sliding block and the second step opening at the upper end of the fixed clamping block are used for clamping the PCB, the sliding position of the sliding block can be adjusted by screwing the driving screw, and then the loose clamping operation of the PCB is realized, and because the relative position between the sliding block and the fixed clamping block can be flexibly adjusted, multiple sizes of PCBs can be matched and clamped, and the compatibility is high, and the jig cost can be saved. Further, under the cooperation of the first step opening and the second step opening, the two side edges of the PCB can be clamped and fixed, so that the PCB is ensured to be in a flat state after being clamped, when the lens clamped above the test area approaches the PCB, the lens and the chip on the PCB are aligned, and then the coupling test accuracy and reliability are improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a perspective view of the coupling test clamping jig of the utility model;
[0014] Figure 2 It is an exploded view of the coupling test clamping jig of the utility model;
[0015] Figure 3 It is a structural view of the driving screw and the sliding block;
[0016] Figure 4 It is a local enlarged view of the sliding block and the fixed clamping block. DETAILED DESCRIPTION
[0017] The utility model will be described in more detail in combination with the drawings and examples.
[0018] The utility model discloses a coupling test clamping jig compatible with multiple sizes of PCBs, which combines Figures 1 to 4As shown, it includes a base 1, on which a slide rail 2 is formed, one end of the slide rail 2 is provided with a fixed clamping block 3, and the other end of the slide rail 2 is provided with a fixed support block 4, a driving screw 5 is passed through the fixed support block 4 and the two are threadedly matched, the driving screw 5 is arranged parallel to the top of the slide rail 2, and a slider 6 is slidably connected to the slide rail 2, the end of the driving screw 5 is clamped in the slider 6, and the end of the driving screw 5 is rotatably matched with the slider 6, the upper end edge of the slider 6 is formed with a first step opening 60, and the upper end edge of the fixed clamping block 3 is formed with a second step opening 30, the first step opening 60 and the second step opening 30 are arranged opposite to each other, and the PCB board 100 to be tested is clamped between the first step opening 60 and the second step opening 30.
[0019] In the above structure, the slider 6 slides on the slide rail 2. The first step 60 at the upper end of the slider 6 and the second step 30 at the upper end of the fixed clamp 3 are used to clamp the PCB 100. The sliding position of the slider 6 can be adjusted by rotating the drive screw 5, thereby achieving a loosening operation of the PCB 100. Because the relative position between the slider 6 and the fixed clamp 3 can be flexibly adjusted, it can match and clamp PCBs 100 of various sizes, has high compatibility, and can also save fixture costs. Furthermore, the cooperation between the first step 60 and the second step 30 can clamp the two side edges of the PCB 100, ensuring that the PCB 100 is in a straight state after being clamped. When the lens 101 clamped above the test area approaches the PCB 101, it helps to align the lens 101 with the chip on the PCB 100, thereby improving the accuracy and reliability of the coupling test.
[0020] Regarding the preferred fixing relationship between the fixing clamp 3 and the slide rail 2 in this embodiment, please refer to Figure 1 and Figure 2 The slide rail 2 is an I-shaped rail, and the fixing clamp 3 is integrally formed with the slide rail 2. In practical applications, the fixing clamp 3 and the slide rail 2 can also be assembled by screw fixing, welding, etc.
[0021] As a preferred embodiment, the width of the fixing block 3 is the same as the width of the slider 6. The fixing block 3 should have a sufficient width (ie, wider than the slide rail 2) so that it can cooperate well with the slider 6.
[0022] In actual application, in order to facilitate the installation of the slider 6 into the slide rail 2, the fixed support block 4 is configured as a detachable structure in this embodiment. Figure 2In the embodiment, the fixed supporting block 4 is fixed to the end of the slide rail 2 by a screw 40.
[0023] In the embodiment, in order to realize reliable driving of the slide block 6 by the driving screw 5, the connection relationship between the driving screw 5 and the slide block 6 should satisfy two conditions, that is, the end of the driving screw 5 should be clamped in the slide block 6, so that the driving screw 5 can drive the slide block 6 to translate; in addition, the end of the driving screw 5 is rotationally matched with the slide block 6. In order to satisfy the above two conditions, in the embodiment, referring to Figure 3 , the inner side of the slide block 6 is formed with a bearing accommodating opening 61, the end of the driving screw 5 is fixed with an end shaft 50, the end shaft 50 is sleeved with a bearing 51, and the bearing 51 is clamped in the bearing accommodating opening 61.
[0024] As a preferred mode, referring to Figure 3 , the end of the driving screw 5 away from the slide block 6 is formed with an end cap 52, and the side of the end cap 52 is provided with a through hole 53. The through hole 53 can be used for inserting a supporting rod or a metal ring to facilitate the application of a torsion force to the driving screw 5. In addition, the driving screw 5 can also be provided with a handle to replace the end cap 52.
[0025] Referring to Figure 1 and Figure 2 , the embodiment includes a base 7, the bottom of the base 1 is fixedly connected with the base 7, and a plurality of screw holes 70 are formed in the base 7. The base 7 is used for supporting and fixing the base 1, and the base 7 can be installed on a machine table of a test device and fixed by screws passing through the screw holes 70.
[0026] As a preferred mode, referring to Figure 4 , the depths of the first stepped opening 60 and the second stepped opening 30 are both less than the thickness of the PCB 100. Based on the above depth setting, after clamping the PCB 100, the first stepped opening 60 and the second stepped opening 30 can ensure that the PCB 100 is slightly protruded relative to the slide block 6 and the fixed clamping block 3, and then better match the lens 101.
[0027] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement or improvement made within the technical scope of the present application should be included in the scope of protection of the present application.
Claims
1. A coupling test fixture compatible with multi-size PCB boards, characterized in that: The invention comprises a base (1), a slide rail (2) is formed on the base (1), a fixed clamping block (3) is provided at one end of the slide rail (2), a fixed support block (4) is provided at the other end of the slide rail (2), a driving screw (5) is passed through the fixed support block (4), and the two are threadedly matched, the driving screw (5) is arranged parallel to the upper part of the slide rail (2), a slider (6) is slidably connected to the slide rail (2), the end of the driving screw (5) is clamped in the slider (6), and the end of the driving screw (5) is rotatably matched with the slider (6), the upper edge of the slider (6) is formed with a first step opening (60), the upper edge of the fixed clamping block (3) is formed with a second step opening (30), the first step opening (60) and the second step opening (30) are arranged opposite to each other, and the PCB board (100) to be tested is clamped between the first step opening (60) and the second step opening (30).
2. The coupling test fixture compatible with multi-size PCB boards according to claim 1, characterized in that: The slide rail (2) is an I-shaped rail, and the fixed clamping block (3) and the slide rail (2) are integrally formed.
3. The coupling test fixture compatible with multi-size PCB boards according to claim 1, characterized in that: The width of the fixed clamp block (3) is the same as the width of the sliding block (6).
4. The coupling test fixture compatible with multi-size PCB boards according to claim 1, characterized in that: The fixed support block (4) is fixed to the end of the slide rail (2) by means of screws (40).
5. The coupling test fixture compatible with multi-size PCB boards according to claim 1, characterized in that: A bearing accommodating opening (61) is formed on the inner side of the slider (6), an end shaft (50) is fixed to the end of the driving screw (5), a bearing (51) is sleeved on the end shaft (50), and the bearing (51) is clamped in the bearing accommodating opening (61).
6. The coupling test fixture compatible with multi-size PCB boards according to claim 1, characterized in that: An end cap (52) is formed at one end of the driving screw rod (5) away from the slider (6), and a through hole (53) is formed on the side of the end cap (52).
7. The coupling test fixture compatible with multi-size PCB boards according to claim 1, characterized in that: It comprises a base (7), the bottom of the base (1) is fixedly connected to the base (7), and a plurality of screw holes (70) are provided on the base (7).
8. The coupling test fixture compatible with multi-size PCB boards according to claim 1, characterized in that: The depths of the first step opening (60) and the second step opening (30) are both less than the thickness of the PCB board (100).