Terminal fool-proof testing device

Abstract

The utility model discloses a terminal fool-proof testing device, which comprises a seat body (1), a terminal insertion groove (2) and a conductive contact (3), the terminal insertion groove (2) is concavely arranged on the seat body (1), the groove-shaped inner surface of the terminal insertion groove (2) at least comprises two positioning sliding reference surfaces (21) matched with the outer surface of a wiring harness terminal (4), the two positioning sliding reference surfaces (21) are in butt joint connection, and the positioning directions of the two positioning sliding reference surfaces (21) are different; and the conductive contact (3) is positioned and arranged on the seat body (1) corresponding to the positions of the two positioning sliding reference surfaces (21), and the conductive contact (3) is positioned at the groove bottom position of the terminal insertion groove (2). The terminal fool-proof testing device can realize the rapid power-on test of the wire harness terminal on the premise of accurate guiding and positioning, and is especially suitable for the power-on test of the wire harness terminal with a special structure.

Description

Technical Field

[0001] This utility model relates to a wire harness testing device, specifically a terminal error prevention testing device, belonging to the technical field of wire harness installation process equipment. Background Technology

[0002] A terminal is a wiring end, also called a wiring terminal, mainly used to transmit electrical signals or conduct electricity. A wire harness terminal, also called a wire harness connector, generally includes a plug and a socket, and is used for connecting wire harnesses to wire harnesses or wire harnesses to electrical components.

[0003] After wire harness terminals are installed on the wire harness, they typically require an electrical continuity test to ensure proper installation. This test usually utilizes a wire harness terminal testing fixture. However, for wire harness terminals with special structures, their unique features often prevent them from fitting into standard testing fixtures. Therefore, operators typically hold the wire harness terminal and touch the conductive contacts on the testing fixture to complete the test. This results in relatively low testing efficiency, a high rate of missed detections, and may even damage the wire harness. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a terminal error prevention testing device that enables rapid power-on testing of wire harness terminals, and is particularly suitable for power-on testing of wire harness terminals with special structures.

[0005] To achieve the above objectives, this terminal foolproof testing device includes a base, a terminal insertion slot, and conductive contacts;

[0006] The terminal insertion slot is recessed into the base body. The inner surface of the terminal insertion slot includes at least two positioning sliding reference surfaces that mate with the outer surface of the wire harness terminal. The two positioning sliding reference surfaces are connected in contact and the positioning directions of the two positioning sliding reference surfaces are different. The conductive contact is positioned on the base body corresponding to the positions of the two positioning sliding reference surfaces, and the conductive contact is located at the bottom of the terminal insertion slot.

[0007] As a further improvement of this utility model, a telescopic clamping mechanism is provided on the inner surface of the terminal insertion slot, which is directly opposite the positioning sliding reference surface, and the telescopic clamping mechanism is perpendicular to the positioning sliding reference surface. The telescopic clamping mechanism includes a telescopic clamping head and a clamping spring. The telescopic clamping head is slidably mounted on the base, and the clamping spring is abutted between the telescopic clamping head and the base.

[0008] As a further improvement of this utility model, the telescopic clamping mechanism also includes a clamping head telescopic control structure located at the tail end of the telescopic clamping head.

[0009] As a further improvement of this utility model, the base is also provided with a micro limit switch, the limit contact of the micro limit switch extends into the terminal insertion slot, and the swing stroke of the limit contact is matched with the wire harness terminal.

[0010] As a further improvement of this utility model, the micro limit switch is detachably mounted on the base.

[0011] As a further improvement of this utility model, the terminal insertion slot is mounted on the base body via the slot mounting base, and the conductive contact is detachably mounted on the base body via the conductive contact mounting base.

[0012] As a further improvement of this utility model, the terminal insertion slot is inclined upward on the base.

[0013] Compared with existing technologies, this terminal error-proof testing device allows operators to accurately guide and position the wire harness terminal when inserting it into the terminal insertion slot by placing it against two mating and connecting positioning sliding reference surfaces. When the wire harness terminal is inserted to the bottom of the terminal insertion slot, it connects with the conductive contact, enabling rapid power-on testing of the wire harness terminal under accurate guidance and positioning. It is particularly suitable for power-on testing of wire harness terminals with special structures. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Top view;

[0016] Figure 3 yes Figure 1 The left view;

[0017] Figure 4 yes Figure 1 A-direction view.

[0018] In the figure: 1. Base, 2. Terminal insertion slot, 21. Positioning sliding reference surface, 22. Telescopic clamping mechanism, 23. Micro switch, 3. Conductive contact, 4. Wire harness terminal. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 3 As shown, this terminal foolproof test device includes a base 1, a terminal insertion slot 2, and a conductive contact 3.

[0021] The terminal insertion slot 2 is recessed into the base 1. The inner surface of the slot of the terminal insertion slot 2 includes at least two positioning sliding reference surfaces 21 that mate with the outer surface of the wire harness terminal 4. The two positioning sliding reference surfaces 21 are connected and have different positioning directions. The positioning sliding reference surfaces 21 can be curved surfaces that mate with the outer surface of the wire harness terminal 4 (the two connected positioning sliding reference surfaces 21 can form a semi-enclosed structure) or vertical surfaces that mate with the outer surface of the wire harness terminal 4 (as shown in the figure, the two connected positioning sliding reference surfaces 21 can form an angled structure). The conductive contact 3 is positioned on the base 1 corresponding to the positions of the two positioning sliding reference surfaces 21, and the conductive contact 3 is located at the bottom of the slot of the terminal insertion slot 2.

[0022] When using this terminal error-proof testing device, the operator inserts the wire harness terminal 4 into the terminal insertion slot 2 by placing the wire harness terminal 4 against the two mating positioning sliding reference surfaces 21 to achieve accurate guidance and positioning of the wire harness terminal 4. When the wire harness terminal 4 is inserted to the bottom of the terminal insertion slot 2, it mates with the conductive contact 3, enabling rapid power-on testing of the wire harness terminal 4 under accurate guidance and positioning. For wire harness terminals 4 with special structures, the device can also be applied by reasonably setting the two mating positioning sliding reference surfaces 21.

[0023] To avoid inaccurate connection of the conductive contact 3 due to the wire harness terminal 4 deviating from the positioning sliding reference surface 21 during the power-on test, as a further improvement of this utility model, such as Figure 4 As shown, a telescopic clamping mechanism 22 is provided on the inner surface of the terminal insertion slot 2, directly opposite the positioning sliding reference surface 21. The telescopic clamping mechanism's extension direction is perpendicular to the positioning sliding reference surface 21. The telescopic clamping mechanism 22 includes a telescopic clamping head and a clamping spring. The telescopic clamping head is slidably mounted on the base 1, and the clamping spring is abutted between the telescopic clamping head and the base 1. Before inserting the wire harness terminal 4 into the terminal insertion slot 2, the clamping spring can be compressed to retract the telescopic clamping head. After the wire harness terminal 4 is inserted, the clamping spring is released, and the telescopic clamping head can then firmly clamp the wire harness terminal 4 under the elastic force of the clamping spring. To further facilitate operation, the telescopic clamping mechanism 22 also includes a clamping head extension control structure located at the tail end of the telescopic clamping head. The clamping head extension control structure can be an electromagnetic control structure including an electromagnet or a pneumatic control structure including a drive cylinder. By controlling the movement of the clamping head extension control structure, the automatic retraction of the telescopic clamping head can be achieved.

[0024] Regarding the wire harness terminal 4 with its special structure, in order to determine whether the structure of the inserted wire harness terminal 4 is correct during power-on testing, as a further improvement of this utility model, such as... Figure 1 , Figure 4As shown, the base 1 is also equipped with a micro-switch 23. The travel contact of the micro-switch 23 extends into the terminal insertion slot 2, and the swing travel of the travel contact matches the wire harness terminal 4. When the wire harness terminal 4 is inserted into the terminal insertion slot 2, if the inserted wire harness terminal 4 has the correct structure, the correctly structured wire harness terminal 4 will touch the travel contact of the micro-switch 23 and close it, thus the micro-switch 23 will give a signal indicating that the structure is correct. If the wire harness terminal 4 has an incorrect structure, the incorrectly structured wire harness terminal 4 will not touch the travel contact of the micro-switch 23, thus the micro-switch 23 will not give a signal indicating that the structure is correct, thereby distinguishing the wire harness terminal 4 and avoiding incorrect detection. To test versatility, the micro-switch 23 is detachably mounted on the base 1, and by replacing the micro-switch 23 with one of different travel strokes, it can be used for wire harness terminals 4 with different structures.

[0025] To achieve universality for wire harness terminals 4 of different sizes, as a further improvement of this utility model, the terminal insertion slot 2 is mounted on the base 1 via a slot mounting seat, and the conductive contact 3 is detachably mounted on the base 1 via a conductive contact mounting seat. By replacing the slot mounting seat with the terminal insertion slot 2 and the corresponding conductive contact mounting seat with the conductive contact 3, the universality of this terminal error-proof testing device for wire harness terminals 4 of different sizes can be achieved.

[0026] To facilitate the operator in inserting the wire harness terminal 4 into the terminal insertion slot 2, as a further improvement of this utility model, the terminal insertion slot 2 is inclined upward on the base body 1.

Claims

1. A terminal error prevention testing device, comprising a base (1), a terminal insertion slot (2), and a conductive contact (3); the terminal insertion slot (2) is recessed into the base (1); characterized in that, The inner surface of the terminal insertion slot (2) includes at least two positioning sliding reference surfaces (21) that mate with the outer surface of the wire harness terminal (4). The two positioning sliding reference surfaces (21) are connected and have different positioning directions. The conductive contact (3) is positioned on the base (1) corresponding to the positions of the two positioning sliding reference surfaces (21) and is located at the bottom of the terminal insertion slot (2).

2. The terminal error prevention testing device according to claim 1, characterized in that, A telescopic clamping mechanism (22) is provided on the inner surface of the terminal insertion slot (2) at a position opposite to the positioning sliding reference surface (21), and the telescopic clamping mechanism is perpendicular to the positioning sliding reference surface (21). The telescopic clamping mechanism (22) includes a telescopic clamping head and a clamping spring. The telescopic clamping head is slidably mounted on the base (1), and the clamping spring is abutted between the telescopic clamping head and the base (1).

3. The terminal error prevention testing device according to claim 2, characterized in that, The telescopic clamping mechanism (22) also includes a clamping head telescopic control structure located at the tail end of the telescopic clamping head.

4. The terminal error prevention testing device according to claim 1, 2, or 3, characterized in that, The base (1) is also provided with a micro limit switch (23). The limit contact of the micro limit switch (23) extends into the terminal insertion slot (2), and the swing stroke of the limit contact is matched with the wire harness terminal (4).

5. The terminal foolproof testing device according to claim 4, characterized in that, The micro limit switch (23) is detachably mounted on the base (1).

6. The terminal error prevention testing device according to claim 1, 2, or 3, characterized in that, The terminal insertion slot (2) is mounted on the base (1) via the slot mounting base, and the conductive contact (3) is detachably mounted on the base (1) via the conductive contact mounting base.

7. The terminal error prevention testing device according to claim 1, 2, or 3, characterized in that, The terminal insertion slot (2) is inclined upward on the base (1).

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