Wire harness terminal denailing test device

Abstract

The utility model discloses a wire harness terminal pin-off test device, comprising a test bench which is provided with a test station used for placing a wire harness terminal; the locking mechanism is arranged on one side of the test station and is used for locking the wire harness terminal; the position detection switch is arranged in the test station, and the position detection switch is triggered after the wire harness terminal enters the test station; and the pin-off detection mechanism is arranged in the test station and is in contact with metal in the wiring harness terminal to detect pin-off. The nail disengaging detection mechanism comprises an elastic detection switch and a driving air cylinder, and the driving air cylinder is connected with an air inlet valve. A guide column is arranged below the test board, and the elastic detection switch is arranged on the guide column in a sliding mode. The control end of the air inlet valve is connected with the position detection switch, and the air outlet end of the air inlet valve is connected with the locking mechanism and the driving cylinder. The elastic detection switch comprises an inner pressing rod, an outer sleeve and a pressing switch, a supporting spring is arranged between the inner pressing rod and the outer sleeve, and the outer sleeve is connected with the output end of the driving air cylinder.

Description

Technical Field

[0001] The utility model relates to the field of automobile wiring harness processing equipment, in particular to a wiring harness terminal nail removal testing device. Background Art

[0002] A wiring harness terminal is a contact terminal made of metal that is crimped with wires and cables, and then an insulator is plasticized on the outside or an external metal shell is added to form a component that connects the circuit. It is one of the fastest growing products in the industry in today's electronic and information age, with the largest market demand and the most convenient installation. It is mainly used to plug into a car to achieve a certain function. During the installation process, the terminal will fail if it is unpinned. Since some terminals do not have a secondary lock, they can only be locked by the primary lock of the terminal itself. When such terminals are unpinned, the current test device cannot accurately test the defect. In the prior art, there are methods such as scanning to sense whether there is a metal sheet in the terminal. There are few tests on whether it is installed in place and the stability of the installation, resulting in a high rate of defective products. Utility Model Content

[0003] The utility model aims to provide a wire harness terminal nail-out testing device to solve the problem that the current testing device cannot accurately test the nail-out and has a high defective rate.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a wiring harness terminal nail removal test device, comprising:

[0005] A test bench, wherein a test station is provided on the test bench, and the test station is used to place the wiring harness terminals;

[0006] A locking mechanism, arranged at one side of the test station, for locking the wiring harness terminal;

[0007] The position detection switch is set inside the test station, and the position detection switch is triggered when the wiring harness terminal enters the test station;

[0008] The nail removal detection mechanism is arranged inside the test station and contacts the metal inside the wiring harness terminal to detect nail removal.

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

[0010] The nail removal detection mechanism includes an elastic detection switch and a driving cylinder. The driving cylinder is connected to an air intake valve. The elastic detection switch is driven by the extension and retraction of the driving cylinder to detect the wiring harness terminal.

[0011] A guide column is arranged below the test bench, and the elasticity detection switch is slidably arranged on the guide column.

[0012] The control end of the air intake valve is connected to a position detection switch, and the air outlet end of the air intake valve is connected to a locking mechanism and a driving cylinder.

[0013] The elastic detection switch comprises an inner pressure rod, an outer sleeve and a push switch, a support spring is arranged between the inner pressure rod and the outer sleeve, and the outer sleeve is connected to the output end of the driving cylinder.

[0014] The test bench is provided with an unlocking switch, which is connected to the air intake valve.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model discloses a wire harness terminal nail removal testing device, which adopts a position detection switch, an elasticity detection switch, a driving cylinder and an air intake valve in combination to realize automatic nail removal testing of the wire harness terminal, and can accurately detect whether the metal sheet is installed in place and the installation stability, thereby effectively reducing the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the overall structural diagrams of Embodiment 1 of the present utility model;

[0018] Figure 2 This is the second schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 This is a schematic diagram of the top view of the test bench structure of Example 2 of the utility model.

[0021] Figure numerals: 1. test bench; 11. test station; 12. guide column; 13. unlocking switch; 2. locking mechanism; 3. position detection switch; 41. elasticity detection switch; 411. inner pressure rod; 412. outer sleeve; 413. press switch; 414. support spring; 42. drive cylinder; 43. intake valve. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate directions or positions, and the relationship is based on the directions or positional relationships shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figures 1 to 3 As shown, the wiring harness terminal nail removal test device of this embodiment includes:

[0028] A test bench 1, on which a test station 11 is arranged, and the test station 11 is used to place a wiring harness terminal;

[0029] A locking mechanism 2, provided at one side of the test station 11, for locking the wiring harness terminal;

[0030] The position detection switch 3 is arranged inside the test station 11, and the position detection switch 3 is triggered when the wiring harness terminal enters the test station;

[0031] The nail removal detection mechanism is arranged inside the test station 11 and contacts the metal inside the wiring harness terminal to detect nail removal.

[0032] When in use, insert the wiring harness terminal into the test station 11, and the front end of the wiring harness terminal squeezes the position detection switch 3. The position detection switch 3 here is a switch needle or other form of switch. Since the locking mechanism 2 controls the operation, the locking mechanism 2 can be an electrically controlled or pneumatically controlled structure. When most of the position detection switches 3 are turned on, the locking mechanism 2 will extend to limit the wiring harness terminal to prevent its outer shell from falling off, thereby providing assistance for the next step of nail removal detection.

[0033] The nail removal detection mechanism includes an elastic detection switch 41 and a driving cylinder 42. The driving cylinder 42 is connected to an air inlet valve 43. The elastic detection switch 41 is driven by the extension and contraction of the driving cylinder 42 to detect the wiring harness terminal. After the wiring harness terminal is plugged in place, the driving cylinder 42 drives the elastic detection switch 41 upward to push the wiring harness terminal out. This process is nail removal detection.

[0034] In order to improve the smoothness of movement, a guide column 12 is provided below the test bench 1 , and the elasticity detection switch 41 is slidably disposed on the guide column 12 via a sliding plate.

[0035] The control end of the air intake valve 43 is connected to the position detection switch 3, and the air outlet end of the air intake valve 43 is connected to the locking mechanism 2 and the driving cylinder 42. Here, after the wiring harness terminal is inserted, the air intake valve 43 is in the extended air intake working state. The air intake valve 43 is a solenoid valve, and the air path arrangement of the solenoid valve is a conventional choice in the art. Here, the pipe diameter and the air path branch design are detailed to realize the movement of the driving structure.

[0036] The elastic detection switch 41 includes an inner pressure rod 411, an outer sleeve 412 and a push switch 413. A support spring 414 is provided between the inner pressure rod 411 and the outer sleeve 412. The outer sleeve 412 is connected to the output end of the driving cylinder 42. The outer sleeve 412 is fixedly mounted on the sliding plate, and the movement of the outer sleeve 412 is driven by the movement of the output end of the driving cylinder 42. The movement between the inner pressure rod 411 and the outer sleeve 412 is driven by the support spring 414. The inner pressure rod 411 slides relative to the outer sleeve 412 without the support spring 414. The setting of the support spring 414 can prevent the inner pressure rod 411 from causing a hard impact on the wiring harness terminal when it moves upward, and at the same time can realize the detection of whether the metal sheet plug-in position is in place and stable. After the wiring harness terminal is inserted, it is subjected to extrusion pressure, the inner pressure rod 411 moves downward, the supporting spring 414 is compressed, and the inner pressure rod 411 presses the push switch 413. This detection is qualified when the push switch 413 is pressed. In order to realize the nail removal detection, the air intake valve 43 takes in air to make the driving cylinder 42 work, driving the elastic detection switch 41 to move upward. In this process, the inner pressure rod 411 moves upward accordingly. If it is not plugged in place, the metal sheet will be squeezed out. If it is plugged in place, the inner pressure rod 411 is restricted by the metal sheet and cannot move upward, then the push switch 413 continues to be pressed to determine whether the metal sheet is installed in place, that is, whether the wiring harness terminal is qualified, by whether the push switch 413 is turned on. The detection data is connected to the circuit, and can be judged by the connection time of the push switch 413, or it can be observed by the indicator light on and off and color change.

[0037] The test bench 1 is provided with an unlocking switch 13, which is connected to the intake valve 43. After the test is completed, the unlocking switch 13 is pressed, the intake valve 43 is switched to the intake working state of retracting, the locking mechanism 2 is retracted, the wiring harness terminal can be taken out, and the cylinder 42 is driven to return to the initial position.

[0038] Example 2

[0039] like Figure 4 As shown, different from the embodiment 1, this embodiment is provided with a plurality of test stations 11 on the test bench 1, and its related detection mechanism and locking mechanism are also provided with a plurality of sets accordingly. This embodiment can perform batch detection according to the use requirements, and the detection efficiency is extremely high, and the nail removal detection of multiple sets of wiring harness terminals can be performed at one time. It can be used for the production of the quality inspection department to improve the production efficiency of the quality inspection department.

[0040] The working principle of this utility model:

[0041] When in use, the user inserts the wiring harness terminal into the test station 11. After insertion, the position detection switch 3 will be squeezed to turn on its circuit, so that the locking mechanism 2 and the air intake valve 43 extend out to turn on the air intake. The wiring harness terminal is locked in the test station 11. The elastic detection switch 41 squeezes the wiring harness terminal upward under the drive of the driving cylinder 42. If it is not plugged in place, the nail will be dislodged during the squeezing process, and the pressing switch 413 cannot be squeezed, and the product is unqualified. If it is plugged in place, the nail will not be dislodged during the squeezing process, the movement of the inner pressure rod 411 is blocked, and the squeezing of the pressing switch 413 is maintained. The pressing switch 413 is continuously turned on and the test is qualified. Start the unlocking switch 13, the air intake valve 43 enters the air intake working state, the locking mechanism 2 releases the restriction on the wiring harness terminal, the driving cylinder 42 returns to the initial position, the wiring harness terminal is taken out, and the new wiring harness terminal is put in for testing.

[0042] The utility model has high detection efficiency, can effectively detect whether the metal sheet is installed in place, can detect the installation stability of the metal sheet, and has a low defective rate of products leaving the factory.

[0043] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A wire harness terminal nail removal test device, characterized in that: include: A test bench (1), wherein a test station (11) is provided on the test bench (1), and the test station (11) is used to place a wiring harness terminal; A locking mechanism (2), arranged on one side of the testing station (11), and used for locking the wiring harness terminal; The position detection switch (3) is arranged inside the test station (11), and the position detection switch (3) is triggered when the wiring harness terminal enters the test station; The nail removal detection mechanism is arranged inside the test station (11) and contacts the metal inside the wiring harness terminal to detect nail removal.

2. The wire harness terminal nail removal testing device according to claim 1, characterized in that: The nail removal detection mechanism comprises an elastic detection switch (41) and a driving cylinder (42), wherein the driving cylinder (42) is connected to an air intake valve (43), and the elastic detection switch (41) is driven to move by the extension and retraction of the driving cylinder (42) to detect the wiring harness terminal.

3. The wire harness terminal nail removal testing device according to claim 2, characterized in that: A guide column (12) is arranged below the test bench (1), and the elasticity detection switch (41) is slidably arranged on the guide column (12).

4. The wire harness terminal nail removal testing device according to claim 2, characterized in that: The control end of the air intake valve (43) is connected to the position detection switch (3), and the air outlet end of the air intake valve (43) is connected to the locking mechanism (2) and the driving cylinder (42).

5. The wire harness terminal nail removal testing device according to claim 2, characterized in that: The elastic detection switch (41) comprises an inner pressure rod (411), an outer sleeve (412) and a push switch (413); a support spring (414) is provided between the inner pressure rod (411) and the outer sleeve (412); and the outer sleeve (412) is connected to an output end of a driving cylinder (42).

6. The wire harness terminal nail removal testing device according to claim 2, characterized in that: The test bench (1) is provided with an unlocking switch (13), and the unlocking switch (13) is connected to the air intake valve (43).

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