A high-voltage test tool based on a multi-core cable of an automobile

Abstract

The utility model provides a kind of high pressure test tool based on automobile multicore cable, comprising: tool main body, tool main body includes an activity door, and pneumatic clamp and safety switch are provided in tool main body inside;Pneumatic clamp includes fixed part, push rod and cylinder, fixed part is arranged in tool main body, is connected with push rod, and the cylinder of two pieces of the upper and lower symmetry is provided at the end of push rod away from fixed part, and cylinder is connected with jaw;Safety switch is arranged in the side close to activity door, and is electrically connected with pneumatic clamp, activity door;The utility model solves the problem that existing technology test line is prone to contact badly, artificial operation cannot guarantee that clamping force is consistent, opening door does not exist safety hidden danger automatically power off, electric clamping structure is complex and cost is high.

Description

Technical Field

[0001] This utility model belongs to the field of high voltage testing fixtures, and in particular, it is a high voltage testing fixture based on automotive multi-core cables. Background Technology

[0002] Conventional high-voltage testing fixtures rely on manual wiring or simple clamps. If screws and clamps are used to secure the test piece, poor contact of the test leads can easily cause data errors (such as resistance deviations or voltage fluctuations), and may even trigger high-voltage discharge. Furthermore, conventional fixtures require repeated manual adjustments to the clamping position, especially for complex components with multiple testing points, resulting in low operational efficiency and an inability to guarantee consistent clamping force each time. While some testing stations incorporate electric clamping mechanisms, their complex structure and high cost make them unsuitable for flexible production lines. Moreover, conventional high-voltage testing fixtures do not automatically shut off power when the door is opened, posing a significant safety hazard. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a high-voltage testing fixture based on automotive multi-core cables, which solves the problems in the prior art such as poor contact of test lines, inability to ensure consistent clamping force during manual operation, safety hazards due to failure to automatically cut off power when the door is opened, and complex and costly electric clamping structure.

[0004] This utility model is implemented as follows:

[0005] A high-voltage testing fixture based on automotive multi-core cables includes:

[0006] The tooling body includes a movable door, and a pneumatic clamp and a safety switch are installed inside the tooling body;

[0007] The pneumatic clamp includes a fixing member, a push rod, and a cylinder. The fixing member is disposed inside the tooling body and connected to the push rod. The end of the push rod away from the fixing member is provided with two symmetrically arranged cylinders, and the cylinders are connected to the grippers.

[0008] The safety switch is located near the movable door and is electrically connected to the pneumatic clamp and the movable door.

[0009] Furthermore, the movable door includes a hinge and a handle, the movable door being connected to the tooling body via the hinge, and the handle being disposed on the movable door.

[0010] Furthermore, there are at least two pneumatic clamps.

[0011] Furthermore, the cylinder air pressure adjustment range is 0.2 to 0.6 MPa.

[0012] Furthermore, the front end of the gripper is covered with insulating silicone.

[0013] Furthermore, it also includes: an audible and visual alarm, which is installed on the top of the tooling body and is electrically connected to the pneumatic clamp.

[0014] The advantages of this utility model are:

[0015] 1. Safety Protection: Ensure operational safety through a door-opening power-off device;

[0016] 2. High-efficiency clamping: A pneumatic clamping mechanism is used to achieve rapid and stable fixation of the test leads;

[0017] 3. Automated testing: Achieve full automation of the "clamping → testing → power off → release" process;

[0018] 4. Adaptive air pressure regulation: Compatible with different wire diameters, avoiding damage to the cable insulation layer due to overpressure;

[0019] 5. Simple structure and low cost. Attached Figure Description

[0020] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a top view of the present invention;

[0022] Figure 2 This is a front view schematic diagram of the present utility model;

[0023] Figure 3 This is a side view of the present invention. Detailed Implementation

[0024] This embodiment provides a high-voltage testing fixture based on automotive multi-core cables, such as... Figure 1 , Figure 2 , Figure 3 As shown, it includes:

[0025] Tooling body 1, the tooling body includes a movable door 11, and the tooling body is equipped with a pneumatic clamp 12, a safety switch 13 and an audible and visual alarm 14;

[0026] The movable door 11 includes a hinge 111 and a handle 112. The movable door 11 is connected to the tooling body 1 through the hinge 111, and the handle 112 is provided on the movable door 11.

[0027] The safety switch 13 is located near the movable door 11 and is electrically connected to the pneumatic clamp 12 and the movable door 11; when high voltage output is performed, the safety switch 13 is electrically connected to the high voltage output and can automatically cut off the high voltage output.

[0028] The audible and visual alarm 14 is located on the top of the tooling body 1 and is electrically connected to the pneumatic clamp 12.

[0029] There are at least two pneumatic clamps 12; each pneumatic clamp 12 includes a fixing member 121, a push rod 122, and a gripper 123. The fixing member 121 is disposed inside the tooling body 1 and is connected to the push rod 122. The end of the push rod 122 away from the fixing member 121 is provided with a two-piece cylinder 124 that is symmetrically arranged vertically. The cylinder 124 is connected to the gripper 123.

[0030] The front end of the gripper 123 is wrapped with insulating silicone.

[0031] The cylinder 124 has an air pressure adjustment range of 0.2 to 0.6 MPa, which is suitable for different wire diameters.

[0032] During testing, the security linkage process is as follows:

[0033] Place the test line inside the main body 1 of the tooling;

[0034] When the foot pedal is pressed, the cylinder 124 is triggered. The cylinder 124 pushes the gripper 123 along the push rod 122 to automatically clamp the test line.

[0035] Close the movable door 11, start the high-voltage test, and output high voltage;

[0036] If the door is opened during the test, the safety switch 13 detects that the movable door 11 is open, the high voltage output is immediately cut off, and after a delay of 0.5 seconds, the cylinder 124 is released to prevent the cable from flying away.

[0037] If there is an abnormal clamping timeout (the pneumatic clamp 12 has not clamped in place for more than three seconds), the audible and visual alarm 14 will sound and the test will be stopped.

[0038] This utility model provides a high-voltage testing fixture based on automotive multi-core cables, which solves the problems in the prior art such as poor contact of test lines, inability to guarantee consistent clamping force during manual operation, safety hazards due to failure to automatically cut off power when the door is opened, and complex and costly electric clamping structure.

[0039] This utility model improves clamping efficiency by 50% with its pneumatic clamping effect; it also automatically cuts off power when the door is opened, 100% avoiding the risk of live operation; and it features adaptive air pressure adjustment to accommodate different wire diameters and prevent overpressure damage to the cable insulation layer.

[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A high-voltage testing fixture based on automotive multi-core cables, characterized in that: include: The tooling body includes a movable door, and a pneumatic clamp and a safety switch are installed inside the tooling body; The pneumatic clamp includes a fixing member, a push rod, and a cylinder. The fixing member is disposed inside the tooling body and connected to the push rod. The end of the push rod away from the fixing member is provided with two symmetrically arranged cylinders, and the cylinders are connected to the grippers. The safety switch is located near the movable door and is electrically connected to the pneumatic clamp and the movable door.

2. The high-voltage testing fixture based on automotive multi-core cables as described in claim 1, characterized in that: The movable door includes a hinge and a handle. The movable door is connected to the tooling body via the hinge, and the handle is disposed on the movable door.

3. The high-voltage testing fixture based on automotive multi-core cables as described in claim 1, characterized in that: The pneumatic clamps are at least two in number.

4. The high-voltage testing fixture based on automotive multi-core cables as described in claim 1, characterized in that: The cylinder air pressure adjustment range is 0.2 to 0.6 MPa.

5. The high-voltage testing fixture based on automotive multi-core cables as described in claim 1, characterized in that: The front end of the gripper is covered with insulating silicone.

6. The high-voltage testing fixture based on automotive multi-core cables as described in claim 1, characterized in that: Also includes: An audible and visual alarm is installed on the top of the tooling body and is electrically connected to the pneumatic clamp.

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