Wire harness air tightness detection clamping mechanism

Abstract

The utility model relates to the technical field of wire harness detection, and discloses a wire harness air tightness detection clamping mechanism which comprises a workbench, the top end of the workbench is fixedly connected with a clamp, and the inner wall of the top of the workbench is provided with a straightening mechanism; the straightening mechanism comprises a movable plate, the top end of the movable plate is fixedly connected with a fixed plate, the inner wall of the fixed plate is rotationally connected with an adjusting screw rod, the outer wall of the adjusting screw rod is in threaded connection with a sealing connector, the inner walls of protrusions on the front side and the rear side of the movable plate are both in threaded connection with threaded rods, and the bottom ends of the protrusions on the front side and the rear side of the movable plate are both provided with guiding pieces. A blocking mechanism is arranged on the inner wall of the workbench. According to the utility model, a straightening test is carried out on a plurality of groups of wire harnesses with different lengths, and when the lengths of the tested wire harnesses are different, the adjusting screw rod can flexibly straighten a single group of wire harnesses, so that the wire harnesses can be fixed and straightened in an optimal state before air tightness detection, and the detection accuracy is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of wire harness testing technology, and in particular to a wire harness airtightness testing clamping mechanism. Background Technology

[0002] A wire harness is a component that connects circuits by crimping copper contact terminals (connectors) with wires and cables, and then molding an insulator or adding an outer metal shell. To prevent moisture from entering and ensure signal transmission stability, the wire harness needs to be tested for air tightness.

[0003] During testing, the wire harness needs to be manually clamped and fixed before air extraction or inflation. The air tightness of the wire harness is then judged by the data displayed. However, the wire harness may be bent or tangled in its natural state. If the wire harness is not straightened, it is difficult to ensure the integrity and accuracy of the test area during air tightness testing, which can easily lead to omissions or misjudgments. Therefore, a wire harness air tightness testing clamping mechanism is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a wire harness airtightness testing clamping mechanism, which aims to improve the problem of misjudgment that occurs when testing wire harnesses that have not been straightened in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wire harness airtightness testing clamping mechanism, including a worktable, a clamp fixedly connected to the top of the worktable, and a straightening mechanism provided on the inner wall of the top of the worktable;

[0006] The straightening mechanism includes a movable plate, a fixed plate fixedly connected to the top of the movable plate, an adjusting screw rotatably connected to the inner wall of the fixed plate, a sealing joint threadedly connected to the outer wall of the adjusting screw, threaded rods threadedly connected to the inner walls of the front and rear protrusions of the movable plate, a contact plate rotatably connected to the bottom end of the threaded rods, guide members provided at the bottom ends of the front and rear protrusions of the movable plate, and a blocking mechanism provided on the inner wall of the worktable.

[0007] As a further description of the above technical solution:

[0008] The guide includes a guide rod, the top end of which is fixedly connected to the protruding bottom end of the movable plate, and the inner wall of the contact plate is slidably connected to the outer wall of the guide rod.

[0009] As a further description of the above technical solution:

[0010] The bottom of the movable plate is provided with an inverted T-block, and the top of the workbench is provided with a sliding groove. The outer wall of the inverted T-block is slidably connected to the inner wall of the sliding groove.

[0011] As a further description of the above technical solution:

[0012] The bottom of the sealing joint contacts the top of the movable plate.

[0013] As a further description of the above technical solution:

[0014] A rubber pad is provided at the bottom of the contact plate, and the bottom rubber pad of the contact plate contacts the top of the movable plate.

[0015] As a further description of the above technical solution:

[0016] The blocking mechanism includes a baffle, and a rubber ball is fixedly connected to the bottom of the baffle. Both the rubber ball and the outer wall of the baffle are in contact with the inner wall of the groove.

[0017] As a further description of the above technical solution:

[0018] The baffle is configured in a T-shape.

[0019] As a further description of the above technical solution:

[0020] A handle is fixedly connected to the top of the baffle.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the cooperation between the set workbench, fixture and straightening mechanism and other structures, it is possible to perform straightening tests on multiple groups of wire harnesses of different lengths. When the test wire harnesses are of different lengths, the adjusting screw can flexibly straighten a single group of wire harnesses, ensuring that the wire harnesses can be fixed and straightened in the best condition before the airtightness test, effectively improving the test accuracy, avoiding test errors caused by wire harness bending, and greatly improving the test efficiency and quality.

[0023] 2. In this utility model, through the cooperation between the structure such as the blocking mechanism, when the whole device is not in use, a baffle can be installed to prevent dust from entering the inner wall of the slide, thereby extending the service life of the movable plate. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a wire harness airtightness testing clamping mechanism proposed in this utility model;

[0025] Figure 2 This is a schematic diagram showing the worktable and blocking mechanism of a wire harness airtightness testing clamping mechanism proposed in this utility model.

[0026] Figure 3This is a three-dimensional schematic diagram of the movable plate of a wire harness airtightness testing clamping mechanism proposed in this utility model.

[0027] Legend:

[0028] 1. Workbench; 2. Fixture; 3. Sealing joint; 4. Straightening mechanism; 401. Adjusting screw; 402. Movable plate; 403. Fixed plate; 404. Threaded rod; 405. Guide rod; 406. Contact plate; 5. Blocking mechanism; 501. Rubber ball; 502. Baffle; 503. Handle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-2 The present invention provides an embodiment of a wire harness airtightness testing clamping mechanism, comprising a workbench 1, a clamp 2 fixedly connected to the top of the workbench 1, the clamp 2 being provided in multiple sets and capable of fixing one side of the wire harness, and a straightening mechanism 4 being provided on the inner wall of the top of the workbench 1; the straightening mechanism 4 is provided so that the wire harness can be straightened when performing airtightness testing, thereby facilitating subsequent testing.

[0031] Reference Figures 2-3 The straightening mechanism 4 includes a movable plate 402, with a fixed plate 403 fixedly connected to the top of the movable plate 402. An adjusting screw 401 is rotatably connected to the inner wall of the fixed plate 403. One set of adjusting screws 401 corresponds to two sets of fixed plates 403, and multiple sets of adjusting screws 401 are provided. A sealing joint 3 is threadedly connected to the outer wall of the adjusting screw 401. The sealing joint 3 is used to fix the other side of the wire harness. Both the sealing joint 3 and the clamp 2 are existing technologies and will not be explained in detail here. The movable plate 402 has protrusions on both its front and rear sides. The inner wall is threaded with threaded rods 404, and the bottom end of the threaded rods 404 is rotatably connected to a contact plate 406. The rotation of the threaded rods 404 drives the contact plate 406 to move vertically. The bottom ends of the protrusions on the front and rear sides of the movable plate 402 are provided with guides. The guides guide the movement of the contact plate 406 and prevent it from rotating when moving vertically. The inner wall of the worktable 1 is provided with a blocking mechanism 5, which extends the service life of the straightening mechanism 4.

[0032] Reference Figures 2-3The guide includes a guide rod 405, the top of which is fixedly connected to the protruding bottom of the movable plate 402. The inner wall of the contact plate 406 is slidably connected to the outer wall of the guide rod 405. The guide rod 405 guides the contact plate 406. The bottom of the movable plate 402 has an inverted T-block. The top of the worktable 1 has a sliding groove. The outer wall of the inverted T-block is slidably connected to the inner wall of the sliding groove. There are two sets of inverted T-blocks that match the sliding groove. The inverted T-blocks prevent the movable plate 402 from falling off during movement. The bottom of the sealing joint 3 contacts the top of the movable plate 402. The contact prevents the sealing joint 3 from rotating during movement. The bottom of the contact plate 406 has a rubber pad. The rubber pad at the bottom of the contact plate 406 contacts the top of the movable plate 402. The rubber pad increases the friction between the contact plate 406 and the worktable 1.

[0033] Reference Figures 2-3 The blocking mechanism 5 includes a baffle 502, with a rubber ball 501 fixedly connected to the bottom of the baffle 502. The outer walls of both the rubber ball 501 and the baffle 502 are in contact with the inner wall of the slide groove. The rubber ball 501 is designed so that it will be squeezed and deformed first when the baffle is installed. When the baffle 502 is fully installed, the rubber ball 501 returns to its original position due to its own material. The installation of the baffle 502 is completed by the elasticity of the rubber ball 501. The installed baffle 502 blocks the slide groove to prevent dust from entering. The baffle 502 is designed in a T-shape to prevent it from falling into the slide groove. A handle 503 is fixedly connected to the top of the baffle 502, which makes it easy to pull out the baffle 502.

[0034] Working Principle: When performing wire harness airtightness testing, one side of the wire harness is first mounted on clamp 2 and the other side on sealing connector 3. Since clamp 2 and sealing connector 3 are provided in multiple sets, they can meet the fixing requirements of different wire harnesses. Next, the wire harness is straightened using straightening mechanism 4 for subsequent testing. In straightening mechanism 4, the movable plate 402 is first moved to the right. The bottom of the movable plate 402 is slidably connected to the slide groove on the top of the workbench 1 via an inverted T-block. There are two sets of inverted T-blocks that match the slide groove, ensuring that the movable plate 402 will not fall off during movement. When it moves to a certain extent, the threaded rod 404 is rotated, driving the contact plate 406 to move vertically. The guide rod 405 is fixed to the protruding bottom end of the movable plate 402. The inner wall of the contact plate 406 is slidably connected to the outer wall of the guide rod 405. The guide rod 405 guides the contact plate 406, preventing it from rotating during vertical movement. A rubber pad at the bottom of the contact plate 406 contacts the top of the movable plate 402. The rubber pad increases the friction between the contact plate 406 and the movable plate 402, thereby fixing the position of the movable plate 402. After fixing, the threaded rod 404 can only rotate in the opposite direction. After the movable plate 402 is fixed, multiple sets of wire harnesses of the same length are straightened for airtightness testing. When the test wire harnesses are of different lengths, the adjusting screw 401 can be rotated. Due to the threaded drive, the sealing joint 3 will move along the axial direction of the adjusting screw 401, thereby moving the other side of the wire harness fixed on it, straightening a single set of wire harnesses, and improving the overall flexibility of the device.

[0035] The blocking mechanism 5 installed on the inner wall of the workbench 1 can extend the service life of the straightening mechanism 4. When installing the baffle 502, the rubber ball 501 is first compressed and deformed. After the baffle 502 is fully installed, the rubber ball 501 returns to its original position due to its own elasticity, completing the installation of the baffle 502. The installed baffle 502 blocks the slide groove to prevent dust from entering. The baffle 502 is T-shaped to prevent it from falling into the slide groove, and the handle 503 at the top makes it easy to pull out the baffle 502.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire harness airtightness testing clamping mechanism, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a clamp (2), and the inner wall of the top of the workbench (1) is provided with a straightening mechanism (4); The straightening mechanism (4) includes a movable plate (402), a fixed plate (403) is fixedly connected to the top of the movable plate (402), an adjusting screw (401) is rotatably connected to the inner wall of the fixed plate (403), a sealing joint (3) is threadedly connected to the outer wall of the adjusting screw (401), threaded rods (404) are threadedly connected to the inner walls of the front and rear protrusions of the movable plate (402), a contact plate (406) is rotatably connected to the bottom end of the threaded rods (404), guide members are provided at the bottom ends of the front and rear protrusions of the movable plate (402), and a blocking mechanism (5) is provided on the inner wall of the worktable (1).

2. The wire harness airtightness testing clamping mechanism according to claim 1, characterized in that: The guide includes a guide rod (405), the top end of which is fixedly connected to the protruding bottom end of the movable plate (402), and the inner wall of the contact plate (406) is slidably connected to the outer wall of the guide rod (405).

3. The wire harness airtightness testing clamping mechanism according to claim 1, characterized in that: The bottom of the movable plate (402) is provided with an inverted T-block, and the top of the workbench (1) is provided with a sliding groove. The outer wall of the inverted T-block is slidably connected to the inner wall of the sliding groove.

4. The wire harness airtightness testing clamping mechanism according to claim 1, characterized in that: The bottom of the sealing joint (3) contacts the top of the movable plate (402).

5. The wire harness airtightness testing clamping mechanism according to claim 1, characterized in that: A rubber pad is provided at the bottom of the contact plate (406), and the bottom rubber pad of the contact plate (406) contacts the top of the movable plate (402).

6. The wire harness airtightness testing clamping mechanism according to claim 1, characterized in that: The blocking mechanism (5) includes a baffle (502), and a rubber ball (501) is fixedly connected to the bottom of the baffle (502). The outer walls of the rubber ball (501) and the baffle (502) are in contact with the inner wall of the groove.

7. The wire harness airtightness testing clamping mechanism according to claim 6, characterized in that: The baffle (502) is configured in a T-shape.

8. The wire harness airtightness testing clamping mechanism according to claim 6, characterized in that: A handle (503) is fixedly connected to the top of the baffle (502).

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