A harness terminal pull-out force detection device

Abstract

The utility model discloses a kind of harness terminal pull-off force detection devices, it is related to harness detection technical field, including workbench, recess and multiple sliding grooves are set in workbench, sliding block is slidably connected in sliding groove, lower clamping plate is fixed on the upper end of sliding block, two mounting blocks are fixedly installed in the both sides of sliding block, transmission rod is rotatably connected with mounting block, torsional spring is equipped in the rotating shaft of transmission rod, two sides transmission rod is X-shaped, roller is rotatably connected with the lower end of transmission rod, connecting rod is rotatably connected with the upper end of transmission rod, the upper end of two sides connecting rod is rotatably connected with pressing plate, upper clamping plate is fixed in the lower end of pressing plate. Advantageous effect lies in: placing harness on lower clamping plate, promoting assembly ascending and rolling with roller, driving symmetric transmission rod and mounting block to rotate, so that transmission rod drives connecting rod to move downward, connecting rod drives pressing plate to be close to sliding block, so that multiple lower clamping plate and upper clamping plate extrude harness simultaneously and carry out fast clamping and fixing.

Description

Technical Field

[0001] This utility model relates to the field of wire harness testing technology, and in particular to a wire harness terminal pull-out force testing device. Background Technology

[0002] The pull-out force test of wire harness terminals is a key test for evaluating the reliability of the connection between terminals and wires. It is mainly used in the automotive, electronics and home appliance industries. The purpose is to evaluate the mechanical connection strength after the terminals and wires are crimped, and to ensure that they will not loosen under vibration, impact or external force.

[0003] A search revealed Chinese patent publication number CN222748166U, which discloses a wire harness terminal pull-out force testing device. This patent involves placing the wire harness in the wire harness opening of a sliding seat, rotating a rotating disk to clamp the wire harness with two wire clamping plates, and then pushing the U-shaped sliding seat away from the pull force display under the action of an adjusting rod to pull the wire harness terminal. This device has certain problems: when clamping the wire harness, it is necessary to manually adjust the wire clamping plates on both sides, and multiple rotating disks need to be rotated one by one to fix multiple sets of wire harnesses, which is cumbersome and affects the testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a wire harness terminal pull-out force detection device in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A wire harness terminal pull-out force testing device includes a worktable with a groove and multiple sliding grooves. The groove is coaxial with the worktable, and the multiple sliding grooves are evenly distributed around the groove. A limiting component is provided on the worktable.

[0007] A sliding block is slidably connected inside the sliding groove. A lower clamping plate is fixed to the upper end of the sliding block. A clamping mechanism is provided on the sliding block. The clamping mechanism includes two mounting blocks, which are fixedly installed on both sides of the sliding block. A transmission rod is rotatably connected to the mounting blocks. A torsion spring is provided inside the rotating shaft of the transmission rod. The two transmission rods are X-shaped. A roller is rotatably connected to the lower end of the transmission rod. A pushing assembly is provided below the transmission rod. A connecting rod is rotatably connected to the upper end of the transmission rod. A pressure plate is rotatably connected to the upper end of the two connecting rods. An upper clamping plate is fixed to the lower end of the pressure plate.

[0008] Preferably, the pushing component includes a movable block located below the sliding block, and a protrusion fixed on the movable block, the protrusion being an isosceles obtuse triangle.

[0009] Preferably, a lifting plate is provided below the workbench, and multiple electric push rods are fixed between the lifting plate and the workbench. Multiple moving slots are opened along the circumferential direction on the lifting plate.

[0010] Preferably, the moving groove and the sliding groove are vertically aligned, and a fixed rod is fixed inside the moving groove, with the fixed rod slidably connected to the moving block.

[0011] Preferably, a transmission screw is rotatably connected inside the sliding groove, the transmission screw is threadedly connected to the sliding block, and a guide rod is fixed inside the sliding groove, the guide rod being slidably connected to the sliding block.

[0012] Preferably, a drive motor is coaxially fixed at the lower end of the worktable, a drive gear is fixed on the output shaft of the drive motor, and a driven gear is fixed at the end of the drive screw near the drive gear, with the drive gear meshing with the driven gear.

[0013] Preferably, the limiting component includes a ring, which is coaxially fixed on the worktable, and the ring has multiple equidistant limiting grooves along its circumference.

[0014] The beneficial effect is that the wire harness is placed on the lower clamping plate, the component is pushed up and the roller rolls, which drives the symmetrical transmission rod and the mounting block to rotate. This causes the transmission rod to drive the connecting rod to move downward, and the connecting rod drives the pressure plate to approach the sliding block, so that multiple sets of lower clamping plates and upper clamping plates simultaneously squeeze the wire harness for quick clamping and fixing.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the wire harness terminal pull-out force detection device described in this utility model;

[0018] Figure 2 This is a top view of the wire harness terminal pull-out force detection device described in this utility model;

[0019] Figure 3 This is a partial sectional view of the mechanism of the wire harness terminal pull-out force detection device described in this utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of point A;

[0021] Figure 5 This is a cross-sectional view of the wire harness terminal pull-out force detection device described in this utility model.

[0022] The reference numerals in the attached drawings are explained as follows: 101, worktable; 102, groove; 103, sliding groove; 201, lifting plate; 202, moving groove; 203, electric push rod; 301, transmission screw; 302, sliding block; 401, mounting block; 402, transmission rod; 403, connecting rod; 404, pressure plate; 405, roller; 501, fixed rod; 502, protrusion; 601, transmission motor; 602, driving gear; 603, driven gear; 701, ring; 702, limiting groove; 801, lower clamping plate; 802, upper clamping plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, a wire harness terminal pull-out force testing device includes a worktable 101. The worktable 101 has a groove 102 and a plurality of sliding grooves 103. The groove 102 is coaxial with the worktable 101. The plurality of sliding grooves 103 are evenly distributed around the groove 102. The worktable 101 is provided with a limiting component.

[0027] A sliding block 302 is slidably connected within the sliding groove 103. A lower clamping plate 801 is fixed to the upper end of the sliding block 302. A clamping mechanism is provided on the sliding block 302, which includes two mounting blocks 401. The two mounting blocks 401 are fixedly installed on both sides of the sliding block 302. A transmission rod 402 is rotatably connected to the mounting blocks 401. A torsion spring is provided inside the rotating shaft of the transmission rod 402. The two transmission rods 402 are X-shaped. A roller 405 is rotatably connected to the lower end of the transmission rod 402. A pushing assembly is provided below the transmission rod 402. A connecting rod 403 is rotatably connected to the upper end of the transmission rod 402. A pressure rod is rotatably connected to the upper end of the two connecting rods 403. The lower end of the plate 404 and the pressure plate 404 is fixed with an upper clamping plate 802. In use, the terminal part of the wire harness is limited by the limiting component. Then the wire harness is placed on the lower clamping plate 801. Then the pushing component rises and rolls with the roller 405, which drives the symmetrical transmission rod 402 and the mounting block 401 to rotate. This causes the transmission rod 402 to drive the connecting rod 403 to move downward. The connecting rod 403 drives the pressure plate 404 to approach the sliding block 302, so that the lower clamping plate 801 and the upper clamping plate 802 squeeze the wire harness for clamping and fixing. Then the sliding block 302 moves away from the groove 102 to perform a tensile test on the wire harness.

[0028] The pushing component includes a movable block located below the sliding block 302. A protrusion 502 is fixed on the movable block. The protrusion 502 is an isosceles obtuse triangle. When the movable block drives the protrusion 502 to rise, the roller 405 and the two sides of the protrusion 502 roll.

[0029] A lifting plate 201 is provided below the workbench 101. Multiple electric push rods 203 are fixed between the lifting plate 201 and the workbench 101. Multiple moving slots 202 are provided along the circumferential direction of the lifting plate 201. When the electric push rods 203 retract, they drive the lifting plate 201 to rise, which causes the moving block to drive the protrusion 502 to rise.

[0030] The moving groove 202 corresponds vertically to the sliding groove 103. A fixed rod 501 is fixed inside the moving groove 202. The fixed rod 501 is slidably connected to the moving block. The sliding block 302 drives the protrusion 502 to move through the roller 405, so that the protrusion 502 slides with the fixed rod 501.

[0031] A transmission screw 301 is rotatably connected inside the sliding groove 103. The transmission screw 301 is threadedly connected to the sliding block 302. A guide rod is fixed inside the sliding groove 103. The guide rod is slidably connected to the sliding block 302.

[0032] A drive motor 601 is coaxially fixed at the lower end of the worktable 101. A drive gear 602 is fixed on the output shaft of the drive motor 601. A driven gear 603 is fixed at the end of the drive screw 301 near the drive gear 602. The drive gear 602 and the driven gear 603 mesh. The drive motor 601 drives the drive gear 602 to rotate, so that the drive gear 602 and the driven gear 603 mesh, driving the drive screw 301 to rotate, so that the sliding block 302 moves away from the groove 102 along the axial direction of the drive screw 301.

[0033] The limiting component includes a ring 701, which is coaxially fixed on the worktable 101. The ring 701 has multiple equidistant limiting grooves 702 along its circumference. When in use, the terminals of the wire harness are placed in the limiting grooves 702.

[0034] Working principle: During use, the terminals of the wire harness are placed in the limiting groove 702 to limit the terminal portion of the wire harness. Then, the wire harness is placed on the lower clamping plate 801. Subsequently, the electric push rod 203 retracts, causing the lifting plate 201 to rise. When the moving block drives the protrusion 502 to rise, the roller 405 and the two sides of the protrusion 502 roll, causing the symmetrical transmission rod 402 and the mounting block 401 to rotate. This causes the transmission rod 402 to drive the connecting rod 403 to move downwards, and the connecting rod 403 drives the pressure... Plate 404 approaches sliding block 302, thereby causing lower clamping plate 801 and upper clamping plate 802 to press and clamp the wire harness for fixation. Then, drive motor 601 drives drive gear 602 to rotate, causing drive gear 602 to mesh with driven gear 603, driving drive screw 301 to rotate, causing sliding block 302 to move away from groove 102. Sliding block 302 drives protrusion 502 to move through roller 405, causing protrusion 502 to slide against fixed rod 501, and performing tensile test on wire harness.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wire harness terminal pull-out force testing device, comprising a worktable (101), wherein the worktable (101) is provided with a groove (102) and a plurality of sliding grooves (103), characterized in that: The groove (102) is coaxial with the worktable (101), and a plurality of sliding grooves (103) are evenly distributed around the groove (102). The worktable (101) is provided with a limiting component. A sliding block (302) is slidably connected in the sliding groove (103). A lower clamping plate (801) is fixed to the upper end of the sliding block (302). A clamping mechanism is provided on the sliding block (302). The clamping mechanism includes two mounting blocks (401). The two mounting blocks (401) are fixedly installed on both sides of the sliding block (302). A transmission rod (402) is rotatably connected to the mounting block (401). A torsion spring is provided in the rotating shaft of the transmission rod (402). The transmission rods (402) on both sides are X-shaped. A roller (405) is rotatably connected to the lower end of the transmission rod (402). A pushing component is provided below the transmission rod (402). A connecting rod (403) is rotatably connected to the upper end of the transmission rod (402). A pressure plate (404) is rotatably connected to the upper end of the connecting rods (403) on both sides. An upper clamping plate (802) is fixed to the lower end of the pressure plate (404).

2. The wire harness terminal pull-out force detection device according to claim 1, characterized in that: The pushing component includes a movable block located below the sliding block (302), and a protrusion (502) is fixed on the movable block. The protrusion (502) is an isosceles obtuse triangle.

3. The wire harness terminal pull-out force detection device according to claim 2, characterized in that: A lifting plate (201) is provided below the workbench (101). Multiple electric push rods (203) are fixed between the lifting plate (201) and the workbench (101). Multiple moving slots (202) are provided on the lifting plate (201) along the circumferential direction.

4. The wire harness terminal pull-out force detection device according to claim 3, characterized in that: The moving groove (202) corresponds vertically to the sliding groove (103). A fixing rod (501) is fixed inside the moving groove (202), and the fixing rod (501) is slidably connected to the moving block.

5. The wire harness terminal pull-out force detection device according to claim 1, characterized in that: A transmission screw (301) is rotatably connected inside the sliding groove (103). The transmission screw (301) is threadedly connected to the sliding block (302). A guide rod is fixed inside the sliding groove (103). The guide rod is slidably connected to the sliding block (302).

6. The wire harness terminal pull-out force detection device according to claim 5, characterized in that: A drive motor (601) is coaxially fixed at the lower end of the worktable (101). A drive gear (602) is fixed on the output shaft of the drive motor (601). A driven gear (603) is fixed at the end of the drive screw (301) near the drive gear (602). The drive gear (602) meshes with the driven gear (603).

7. The wire harness terminal pull-out force detection device according to claim 1, characterized in that: The limiting component includes a ring (701), which is coaxially fixed on the worktable (101). The ring (701) has multiple equidistant limiting grooves (702) along its circumference.

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