External connector clamping tool
By designing an external connector clamping fixture, and utilizing the cooperation of the clamping bracket and spring, the problem of easy detachment of the plug parts in the test of combination switches was solved, achieving stable clamping and connection, and improving the reliability of the test.
Patent Information
- Application Number
- CN202520161617.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-23
AI Technical Summary
During the testing of combination switches, repeated stress on the pins of the connectors and the wire harness can easily lead to problems such as desoldering or poor contact.
An external connector clamping fixture was designed, including a fixture box, a PCB board, a clamping mechanism, and a self-locking mechanism. Through the cooperation of the clamping bracket, clamping plate, and spring, the connector is stably clamped and fixed, avoiding repeated insertion and removal by hand.
This effectively avoids the desoldering or poor contact of the connectors due to repeated stress during the testing process, ensuring stable connection between the connectors and the connecting parts and improving the reliability of the testing.
Smart Images
Figure CN223841980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing tooling technology, and in particular to an external connector clamping tooling. Background Technology
[0002] The automotive industry has a large output, and all cars have combination switches that combine many functions (such as steering wheel, steering, and windshield wipers). After being combined, the interface is integrated into a multi-pin connector interface for signal transmission.
[0003] The connection between the fine pins and multiple leads in this type of multi-pin connector is thin and weak. Furthermore, because the plastic parts housing the fine pins are too small, during combination switch insertion and removal tests, the operator simultaneously holds both the plastic parts on the surface of the fine pins and the multiple leads. Due to the small size of the plastic parts on the fine pins, the main force is applied to the leads of the connector. This makes it easy for the fine pins to detach from the multiple leads during insertion and removal, resulting in poor contact.
[0004] Therefore, it is necessary to provide a new external connector clamping fixture to solve the above problems. Utility Model Content
[0005] The technical problem solved by this utility model is to provide an external connector clamping fixture that avoids desoldering or poor contact caused by repeated stress on the pins and wire harness of the plug during the testing of combination switches.
[0006] To solve the above-mentioned technical problems, the external connector clamping fixture provided by this utility model includes: a fixture box, which is fixed to the surface of a functional test box; a PCB board is installed inside the fixture box, and a connector is installed on the surface of the PCB board, and the connector is electrically connected to the functional test box; a clamping mechanism is installed on the side wall of the fixture box, the clamping mechanism including a clamping bracket, the clamping bracket being slidably connected to the interior of the fixture box, a third spring being symmetrically installed inside the fixture box, and one end of the third spring being connected to the clamping bracket; a clamping piece is slidably connected to the side wall of the clamping bracket, a pull rod is installed on the surface of the clamping piece, and a second spring is installed between the pull rod and the clamping bracket; a self-locking mechanism for fixing the clamping bracket is installed at the bottom of the fixture box, and a groove is provided on the side wall of the clamping bracket, a plug and a connector are slidably connected inside the groove, and the plug is electrically connected to a combination switch.
[0007] Preferably, a top cover is installed on the top of the tooling box, and the top cover is fixed to the tooling box by screws.
[0008] Preferably, the second spring passes through the interior of the clamping piece, and the clamping piece is fixed to the pull rod by the screw.
[0009] Preferably, the self-locking mechanism includes a rotating shaft, which is installed at the bottom of the tooling box and is rotatably connected to the self-locking block; one end of the self-locking block engages with the clamping bracket, and the other end of the self-locking block is equipped with a first spring, with the top end of the first spring abutting against the bottom surface of the tooling box.
[0010] Preferably, at one end where the self-locking block engages with the clamping bracket, the surface of the self-locking block is inclined.
[0011] Compared with related technologies, the external connector clamping fixture provided by this utility model has the following advantages:
[0012] This utility model provides an external connector clamping fixture. When testing a combination switch, pulling up the lever causes the clamping plate to move upwards, lengthening the second spring and placing the connector into the groove. Releasing the lever causes the second spring to contract, moving the clamping plate to press against the surface of the connector and hold it in place. Squeezing the clamping bracket causes it to enter the fixture box, compressing the third spring. The clamping bracket then pulls the connector into the fixture box, allowing the connector to engage with the connector. The contact latch engages and conducts; the self-locking mechanism is used to fix the positions of the clamping bracket and the connector, keeping the connector and the connector connected for insertion and removal testing; after the test, the self-locking mechanism is opened, the third spring extends and pushes the clamping bracket to slide out from the tooling box, and the clamping bracket drives the connector to move and separate from the connector; thus, the tooling replaces manual labor, avoiding the need for repeated manual connection and removal testing of the combination switch during the production process, and preventing the fine needles and wire harnesses on the connector surface from desoldering or poor contact due to repeated stress. Attached Figure Description
[0013] Figure 1 A schematic diagram of a preferred embodiment of the external connector clamping fixture provided by this utility model;
[0014] Figure 2 for Figure 1 The diagram shows an enlarged view of the structure at point A.
[0015] Figure 3 for Figure 2 The diagram shows an exploded view of the tooling box and clamping mechanism.
[0016] Figure 4 The exploded view of the plug and connector structure provided by this utility model.
[0017] The following are the labels in the diagram: 1. Functional test box, 2. Tooling box, 21. Top cover, 3. Combination switch, 31. Connector, 4. Self-locking mechanism, 41. Self-locking block, 42. First spring, 43. Rotating shaft, 5. Clamping mechanism, 51. Clamping bracket, 52. Groove, 53. Clamping piece, 54. Pull rod, 55. Second spring, 56. Third spring, 6. PCB board, 61. Connector, 7. Screw. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Please see Figures 1 to 4 , Figure 1 A schematic diagram of a preferred embodiment of the external connector clamping fixture provided by this utility model; Figure 2 for Figure 1 The diagram shows an enlarged view of the structure at point A. Figure 3 for Figure 2 The diagram shows an exploded view of the tooling box and clamping mechanism. Figure 4The exploded view of the plug and connector structure provided by this utility model. The external connector clamping fixture includes: a fixture box 2, which is fixed to the surface of the functional test box 1; a PCB board 6 is installed inside the fixture box 2, and a connector 61 is installed on the surface of the PCB board 6, and the connector 61 is electrically connected to the functional test box 1; a clamping mechanism 5 is installed on the side wall of the fixture box 2, the clamping mechanism 5 includes a clamping bracket 51, the clamping bracket 51 is slidably connected to the interior of the fixture box 2, a third spring 56 is symmetrically installed inside the fixture box 2, and one end of the third spring 56 is connected to the clamping bracket 51; a clamping piece 53 is slidably connected to the side wall of the clamping bracket 51, a pull rod 54 is installed on the surface of the clamping piece 53, and a second spring 55 is installed between the pull rod 54 and the clamping bracket 51; a self-locking mechanism 4 for fixing the clamping bracket 51 is installed at the bottom of the fixture box 2, and a groove 52 is provided on the side wall of the clamping bracket 51, and a plug-in 31 and a connector 61 are slidably connected inside the groove 52, and the plug-in 31 and connector 61 are slidably connected inside the groove 52. 31 is electrically connected to the combination switch 3; when testing the combination switch 3, the pull rod 54 is pulled up, the pull rod 54 drives the clamping piece 53 to move upward and stretch the second spring 55, placing the plug 31 into the groove 52. The pull rod 54 is released, the second spring 55 contracts and drives the clamping piece 53 to move, so that the clamping piece 53 abuts against the surface of the plug 31, pressing the plug 31; the clamping bracket 51 is squeezed, so that the clamping bracket... 51 enters the tooling box 2 and compresses the third spring 56. The clamping bracket 51 drives the plug-in 31 into the tooling box 2, so that the plug-in 31 contacts and engages with the connector 61. The self-locking mechanism 4 is used to fix the positions of the clamping bracket 51 and the plug-in 31, so that the plug-in 31 and the connector 61 are connected, and the functional test box 1 tests the combination switch 3 through the connector 61 and the plug-in 31.
[0020] The tooling box 2 is fitted with a top cover 21, which is fixed to the tooling box 2 by screws 7, so that the tooling box 2 can be sealed inside by the top cover 21.
[0021] The second spring 55 passes through the inside of the clamping piece 53, and the clamping piece 53 is fixed to the pull rod 54 by the screw 7. In order to facilitate the pull rod 54 to drive the clamping piece 53 to move, the pull rod 54 moves to stretch the second spring 55.
[0022] The self-locking mechanism 4 includes a rotating shaft 43, which is mounted on the bottom end of the tooling box 2. The rotating shaft 43 is rotatably connected to the self-locking block 41. One end of the self-locking block 41 engages with the clamping bracket 51, and the other end of the self-locking block 41 is equipped with a first spring 42, with the top end of the first spring 42 abutting against the bottom surface of the tooling box 2. The surface of the self-locking block 41 is inclined at the end where it engages with the clamping bracket 51. When the clamping bracket 51 moves into the interior of the tooling box 1, the bottom end of the clamping bracket 51 is inclined with the surface. When the self-locking block 41 contacts, the clamping bracket 51 moves downward to press the self-locking block 41, causing one end of the self-locking block 41 to rotate downward and press the first spring 42. After the self-locking block 41 rotates, it facilitates the clamping bracket 51 to enter the interior of the tooling box 2. When the clamping bracket 51 enters the interior of the tooling box 2 and separates from the side wall of the self-locking block 41, the first spring 42 extends and pushes the self-locking block 41 to rotate, causing the self-locking block 41 to abut against the bottom end of the clamping bracket 51, thus fixing the clamping bracket 51 inside the tooling box 2.
[0023] The working principle of the external connector clamping fixture provided by this utility model is as follows: When testing the combination switch 3, the pull rod 54 is pulled up, and the pull rod 54 drives the clamping piece 53 to move upward and lengthen the second spring 55, so that the plug-in 31 is placed inside the groove 52. When the pull rod 54 is released, the second spring 55 contracts and drives the clamping piece 53 to move, so that the clamping piece 53 abuts against the surface of the plug-in 31 and presses the plug-in 31. The clamping bracket 51 is squeezed, so that the clamping bracket 51 enters the interior of the fixture box 2 and compresses the third spring 56. The clamping bracket 51 drives the plug-in 31 into the interior of the fixture box 2, so that the plug-in 31 contacts and engages with the connector 61 to conduct electricity. When the clamping bracket 51 moves into the interior of the tooling box 1, the bottom end of the clamping bracket 51 contacts the self-locking block 41 with its inclined surface. The clamping bracket 51 moves downward to press the self-locking block 41, causing one end of the self-locking block 41 to rotate downward and press the first spring 42. After the self-locking block 41 rotates, it facilitates the clamping bracket 51 to enter the interior of the tooling box 2. When the clamping bracket 51 enters the interior of the tooling box 2 and separates from the side wall of the self-locking block 41, the first spring 42 extends and pushes the self-locking block 41 to rotate, causing the self-locking block 41 to abut against the bottom end of the clamping bracket 51, thus fixing the clamping bracket 51 inside the tooling box 2. This keeps the plug-in member 31 connected to the connector 61, allowing the functional test box 1 to test the combination switch 3 through the connector 61 and the plug-in member 31. After the test, rotate the self-locking block 41 downwards to separate it from the clamping bracket 51. The third spring 56 extends and pushes the clamping bracket 51 out of the tooling box 2. The clamping bracket 51 drives the plug-in 31 to move and separate it from the connector 31. Then, pull the lever 54 upwards to move the clamping piece 53 upwards, separating it from the connector 31 and removing the connector 31 from the groove 52. Using tooling instead of manual labor during the test avoids the need for repeated manual connection and disconnection to test the function of the combination switch 3 during the production process, and prevents the fine needles and wire harnesses on the surface of the plug-in 31 from desoldering or poor contact due to repeated stress.
[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An external connector clamping fixture, characterized in that, include: Tooling box (2), the tooling box (2) is fixed to the surface of the functional test box (1); The tooling box (2) has a PCB board (6) installed inside, and a connector (61) is installed on the surface of the PCB board (6), and the connector (61) is electrically connected to the functional test box (1). A clamping mechanism (5) is installed on the side wall of the tooling box (2). The clamping mechanism (5) includes a clamping bracket (51). The clamping bracket (51) is slidably connected to the inside of the tooling box (2). A third spring (56) is symmetrically installed inside the tooling box (2), and one end of the third spring (56) is connected to the clamping bracket (51). A clamping piece (53) is slidably connected to the side wall of the clamping bracket (51). A pull rod (54) is installed on the surface of the clamping piece (53). A second spring (55) is installed between the pull rod (54) and the clamping bracket (51). The bottom of the tooling box (2) is equipped with a self-locking mechanism (4) for fixing the clamping bracket (51). The side wall of the clamping bracket (51) is provided with a groove (52). The groove (52) is slidably connected to the plug (31) and the connector (61). The plug (31) is electrically connected to the combination switch (3).
2. The external connector clamping fixture according to claim 1, characterized in that, The tooling box (2) is fitted with a top cover (21), and the top cover (21) is fixed to the tooling box (2) by screws (7).
3. The external connector clamping fixture according to claim 2, characterized in that, The second spring (55) passes through the inside of the clamping piece (53), and the clamping piece (53) is fixed to the pull rod (54) by the screw (7).
4. The external connector clamping fixture according to claim 1, characterized in that, The self-locking mechanism (4) includes a rotating shaft (43), which is installed at the bottom of the tooling box (2). The rotating shaft (43) is rotatably connected to the self-locking block (41). One end of the self-locking block (41) engages with the clamping bracket (51), and the other end of the self-locking block (41) is equipped with a first spring (42), with the top end of the first spring (42) abutting against the bottom surface of the tooling box (2).
5. The external connector clamping fixture according to claim 4, characterized in that, At one end of the self-locking block (41) that engages with the clamping bracket (51), the surface of the self-locking block (41) is inclined.