一种上下两面压针测试治具
By designing a test fixture with pressure pins on both the top and bottom surfaces, and utilizing a lifting rod and probe structure, multiple sets of probes can simultaneously contact the PCB board, solving the problem that conventional fixtures cannot test multiple points at the same time and improving testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SINGWAY ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Conventional pin test fixtures can only test a single test point on a PCB board, and cannot test multiple points simultaneously, resulting in low testing efficiency. Multiple adjustments to the position or fixture are required to complete a comprehensive test.
Design a two-sided pressure pin test fixture. Through the combination structure of lifting rod, lifting plate and probe, multiple sets of probes can be made to contact the PCB board at the same time. A flexible flat cable is used to connect to the test machine to realize the simultaneous detection of multiple test points.
Multiple test points can be tested simultaneously without adjusting the PCB board position, improving testing efficiency.
Smart Images
Figure CN224518764U_ABST
Abstract
Claims
1. A top and bottom double-sided compression pin test fixture, comprising a base plate (1), characterized in that: A bracket (2) is fixedly installed on the top of the base plate (1), a fixed seat (3) is fixedly installed on the side of the bracket (2), a lifting rod (4) is slidably inserted on the fixed seat (3), a fixed frame (7) is fixedly installed at the lower end of the lifting rod (4), a lifting plate (5) is fixedly installed at the bottom of the fixed frame (7), an installation plate (6) is fixedly installed inside the lifting plate (5), multiple sets of probes (26) are provided on the installation plate (6), and a plug-in socket is fixedly installed on the side of the installation plate (6). The multiple sets of probes (26) are electrically connected to the plug-in socket through wires. The top of the base plate (1) is fixedly installed with multiple sets of positioning rods (20) for positioning, and each set of positioning rods (20) is fixedly connected with a support ring (21) for support.
2. The up-and-down two-side pressing needle test fixture according to claim 1, wherein: The lifting rod (4) is fitted with a first return spring (9), the upper end of the first return spring (9) is fixedly installed on the fixed seat (3), and the lower end of the first return spring (9) is fixedly installed on the top of the fixed frame (7).
3. The up-and-down two-side pressing needle test fixture according to claim 1, wherein: A connecting block (10) is fixedly installed on the side of the fixed base (3). A mounting bracket (13) is fixedly installed on the connecting block (10). A pull rod (14) is movably inserted into the mounting bracket (13). A locking block (17) is fixedly connected to the end of the pull rod (14). A mounting block (11) is fixedly connected to the top of the fixed bracket (7). Multiple sets of slots (12) are opened on the mounting block (11). The locking block (17) is inserted into the slot (12).
4. The up-and-down two-side pressing needle test fixture according to claim 3, wherein: A fixing ring (15) is fixedly connected to the pull rod (14), and a push spring (16) is sleeved on the pull rod (14). One end of the push spring (16) is fixedly installed on the inner side of the mounting bracket (13), and the other end of the push spring (16) is fixedly installed on the side of the fixing ring (15).
5. The up-and-down two-side pressing needle test fixture according to claim 1, wherein: Two sets of guide rods (18) are symmetrically fixedly connected on the bracket (2), and two sets of guide blocks (19) corresponding to the guide rods (18) are symmetrically fixedly connected on the side of the lifting plate (5). The guide blocks (19) are slidably installed on the guide rods (18).
6. The up-and-down two-side pressing needle test fixture according to claim 1, wherein: A fixing block (22) is fixedly installed on the top of the base plate (1). Two sets of push rods (25) are movably inserted into the fixing block (22). A pressure plate (8) is fixedly installed at one end of each set of push rods (25).
7. The up-and-down two-side pressing needle test fixture according to claim 6, wherein: The other end of each of the two sets of push rods (25) is fixedly installed with a connecting rod (23). A second return spring (24) is sleeved on each of the two sets of push rods (25). One end of the second return spring (24) is fixedly installed on the side of the fixing block (22), and the other end of the second return spring (24) is fixedly installed on the side of the connecting rod (23).