Harness wire induction back pull detection terminal retreat position tool

Abstract

The utility model discloses a harness induction pullback detection terminal retreats position frock, including module one and module two, module one both ends are equipped with harness hole no.

Description

Technical Field

[0001] This utility model relates to the field of terminal detection technology, and in particular to a wiring harness induced pull-back detection terminal retraction tool. Background Technology

[0002] A wire harness refers to an assembly consisting of copper-formed contact terminals (connectors) crimped together with multiple wires and cables, then covered with a plastic-molded insulator or an external metal shell, to form a connected circuit. An existing patent (publication number: CN114323690A) discloses a terminal retraction prevention fixture and method for automotive wire harnesses. This invention uses a PLC controller to control the pull-back force, thereby pulling back the terminal wire harness to facilitate efficient terminal detection and solve the problem of wire harness electrical performance failure caused by terminals not being properly inserted or retracting. However, in practical applications, the above technical solution relies on visual inspection to monitor the terminal pull-back action, requiring at least two pull-backs to assess the terminal quality, wasting inspection time. Therefore, we propose a wire harness induced pull-back detection terminal retraction fixture. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a wiring harness induced pullback detection terminal retraction fixture.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A wiring harness induced pull-back detection terminal retraction fixture is designed, comprising module one and module two. Module one has a wiring harness hole one and a socket at both ends, respectively. Module two has a wiring harness hole two at one end and a terminal connected to the other end. A connecting piece two is provided on the inner wall of the end of the socket. A limiting block is provided on the connecting piece two. A limiting groove that cooperates with the limiting block is provided on the terminal. The connecting piece two is an elastic connecting piece and is connected to a force detection mechanism. A magnet is embedded at the tail of the terminal. A Hall sensor is installed on the side wall of the socket. A locking component for locking the terminal is installed on module one. A feedback component is provided on the top of module one.

[0006] In the above scheme, a connecting piece 1 is installed inside the wire harness hole 1, and a connecting piece 3 is provided between the connecting piece 1 and the connecting piece 2.

[0007] In the above scheme, the second connecting piece is in the shape of an "I", and a return spring is connected between the inner wall of the socket and the second connecting piece.

[0008] In the above scheme, the force detection mechanism includes a group of resistance strain gauges arranged on the connecting piece two.

[0009] In the above solution, the locking component includes a housing embedded in module one, a servo motor installed in the housing, a locking arm fixed to the output shaft of the servo motor, a locking groove matching the locking arm on the terminal, a moving groove communicating with the socket and the housing on module one, a positioning block fixed on the housing, and a positioning groove fitting with the positioning block on module one.

[0010] In the above scheme, a photoelectric induction component is provided above the socket. The photoelectric induction component includes a light guide column embedded in module one, and an LED chip is installed in the light guide column.

[0011] In the above scheme, the feedback component includes a buzzer and a dual-color LED light.

[0012] The advantages and beneficial effects of this utility model are as follows: By setting up module one, module two, wire harness hole one, wire harness hole two, plug, terminal, connecting piece one, connecting piece two, Hall sensor, magnet, and force detection mechanism, the wire harness is inserted into wire harness hole one and wire harness hole two respectively. Through the terminal, connecting piece one, and connecting piece two, wire harness one and wire harness two are electrically connected. Compared with the prior art, by analyzing the Hall voltage, the distance between the magnet and the Hall sensor is obtained, thereby detecting the terminal's position. At the same time, the force detection mechanism detects the pressure applied by the terminal to the connecting piece two to assist in the position detection. In addition, the force detection mechanism can also detect the pulling force required for retraction and compare it with the standard pulling force to verify the terminal quality. The entire process adopts electronic monitoring to detect the terminal, improving the degree of automation, reducing detection time, and making it convenient to use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a wire harness induced pullback detection terminal retraction tool proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the photoelectric induction component of a wire harness induced pull-back detection terminal retraction tooling proposed in this utility model;

[0016] Figure 3 This is a cross-sectional view of module one of the wire harness induced pull-back detection terminal retraction tooling proposed in this utility model.

[0017] In the diagram: Module 1, Socket 2, Wire Harness Hole 1, Connecting Piece 1, Connecting Piece 2, Resistance Strain Gauge 6, Reset Spring 7, Limiting Block 8, Module 2, Wire Harness Hole 2, Terminal 11, Photoelectric Induction Component 12, Light Guide Post 121, LED Chip 122, Limiting Groove 13, Magnet 14, Hall Sensor 15, Box 16, Positioning Block 17, Positioning Groove 18, Servo Motor 19, Locking Arm 20, Locking Groove 21, Moving Groove 22, Connecting Piece 3 23, Buzzer 24, Dual-Color LED Light 25. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a wire harness induced pull-back detection terminal retraction tooling, including module one 1 and module two 9. Module one 1 is provided with wire harness hole one 3 and insertion hole 2 at both ends respectively. Module two 9 is provided with wire harness hole two 10 at one end and terminal 11 connected to the other end of module two 9. Connecting piece two 5 is provided on the inner wall of the end of insertion hole 2.

[0020] Furthermore, a connecting piece 4 is installed inside the wire harness hole 3, and a connecting piece 3 23 is provided between the connecting piece 4 and the connecting piece 5. The connecting pieces 4, 5, and 23 are all conductive metals, such as... Figure 3 As shown, by connecting the third piece 23 to the first piece 4 and the second piece 5 respectively, the first piece 4 and the second piece 5 are connected, thereby connecting the wire harness hole 3 and the second piece 10. When the first wire harness is connected to the first piece 3 and the second wire harness is connected to the second piece 10, the first wire harness and the second wire harness are electrically connected.

[0021] The connecting piece 25 is integrally formed with a limiting block 8, and the terminal 11 is provided with a limiting groove 13 that cooperates with the limiting block 8. By utilizing the elastic cooperation between the limiting block 8 and the limiting groove 13, the connecting piece 25 and the terminal 1 temporarily become a connecting body. The connecting piece 25 is an elastic connecting piece and is connected to a force detection mechanism.

[0022] Furthermore, the force detection mechanism includes a group of resistance strain gauges 6 arranged on the connecting piece 2 5;

[0023] Specifically, the resistance strain gauge 6 is connected to a Wheatstone full-bridge circuit, and common-mode noise is suppressed through differential signal transmission. When terminal 11 is inserted, the connecting piece 5 is subjected to pressure from terminal 11 and undergoes slight bending. The resistance change of the resistance strain gauge 6 is converted into a μV-level voltage signal through the Wheatstone bridge. The voltage signal is used to quantify the force on the connecting piece 5, thereby detecting whether terminal 11 is in place and the pull-back force of terminal 11.

[0024] Furthermore, the connecting piece 2 5 is in the shape of an "I", and a return spring 7 is connected between the inner wall of the insertion hole 2 and the connecting piece 2 5. The elastic force of the return spring 7 is used to reset the connecting piece 2 5.

[0025] A magnet 14 is embedded at the tail of terminal 11. The magnet 14 is a miniature neodymium magnet. A Hall sensor 15 is installed on the side wall of the socket 2. The magnetic pole direction of the magnet 14 is parallel to the sensitive axis of the Hall sensor 15.

[0026] Specifically, when magnet 14 approaches Hall sensor 15 during the insertion action, the magnetic induction intensity perpendicularly passing through Hall sensor 15 increases, according to formula U H =K·I·B / d (K is the Hall coefficient, I is the control current, and d is the thickness of the Hall element), output voltage U H As the magnetic field strengthens, the greater the magnetic field strength and the higher the Hall voltage, the smaller the distance between the magnet 14 and the Hall sensor 15. By calibrating the corresponding curve of voltage and displacement, the in-position and out-of-position states of terminal 11 are evaluated to achieve in-depth quantification.

[0027] Module 1 is equipped with a locking component for locking terminal 11;

[0028] Furthermore, the locking assembly includes a housing 16 embedded in module 1. Both ends of the housing 16 are connected to module 1 via fasteners. A servo motor 19 is installed inside the housing 16. A locking arm 20 is fixed to the output shaft of the servo motor 19. A locking groove 21 matching the locking arm 20 is formed on the terminal 11. A movable groove 22 communicating with the insertion hole 2 and the housing 16 is formed on module 1. By rotating the output shaft of the servo motor 19 by a specific angle, the locking arm 20 rotates and engages with the locking groove 21, thereby preventing the terminal 11 from moving back and forth. To lock the terminal 11, a positioning block 17 is fixed on the housing 16, and a positioning groove 18 that fits the positioning block 17 is provided on the module 1. The positioning block 17 and the positioning groove 18 are used to quickly position the installation position of the housing 16. When the terminal 11 is detected to be in place, a pull-back test is started. By gradually increasing the pulling force, it is tested whether the terminal 11 can be pulled when the pull-back force is insufficient. If the reading of the force detection mechanism changes when the calibrated pull-back force is not reached, the servo motor 19 is started to lock the terminal 11.

[0029] Module 1 has a feedback component at the top;

[0030] Furthermore, the feedback component includes a buzzer 24 and a dual-color LED light 25 installed on module 1; the buzzer 24 and the dual-color LED light 25 simultaneously provide feedback on whether the terminal 11 is inserted in place, and when the terminal 11 is in a locked state, the buzzer 24 and the dual-color LED light 25 activate the alarm state to remove the unqualified terminal 11.

[0031] Specifically, by setting up Module 1, Module 2, Wire Harness Hole 1, Wire Harness Hole 2, Socket 2, Terminal 11, Connecting Piece 1, Connecting Piece 2, Hall Sensor 15, Magnet 14, and Force Detection Mechanism, the wire harness is inserted into Wire Harness Hole 1, Wire Harness Hole 2, and Wire Harness 2, respectively. Through Terminal 11, Connecting Piece 1, and Connecting Piece 2, Wire Harness 1 and Wire Harness 2 are electrically connected. Compared with existing technologies, by analyzing the Hall voltage, the distance between Magnet 14 and Hall Sensor 15 is obtained, thereby detecting the position of Terminal 11. At the same time, the force detection mechanism detects the pressure applied by Terminal 11 to Connecting Piece 2, further assisting in the position detection. In addition, the force detection mechanism can also detect the pulling force required for retraction and compare it with the standard pulling force to verify the quality of Terminal 11. The entire process uses electronic monitoring to detect Terminal 11, improving automation, reducing detection time, and making it convenient to use.

[0032] Furthermore, a photoelectric induction component 12 is provided above the socket 2. The photoelectric induction component 12 includes a light guide column 121 embedded in module 1, and an LED chip 122 is installed in the light guide column 121. A vertical illumination spot is formed on module 2 9 through the light guide column 121 so as to accurately insert the terminal 11 into the socket 2.

[0033] Specifically, module 1 has cavities at both ends, and the cavities contain a main control board, a dual-color LED light 25, and a driver circuit board for the LED chip 122. Module 1 is connected to an external power supply. The main control board is connected to the force detection mechanism, the dual-color LED light 25, the driver circuit board for the LED chip 122, the Hall sensor 15, the servo motor 19, the buzzer 24, and the dual-color LED light 25 for overall control.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 harness lead induction pullback detection terminal back-off tooling comprising a module one (1) and a module two (9), characterized by, The first module (1) has a wire harness hole (3) and a socket (2) at both ends respectively. The second module (9) has a wire harness hole (10) at one end and a terminal (11) at the other end. The inner wall of the socket (2) has a connecting piece (5). The connecting piece (5) has a limiting block (8). The terminal (11) has a limiting groove (13) that cooperates with the limiting block (8). The connecting piece (5) is an elastic connecting piece and is connected to a force detection mechanism. The tail of the terminal (11) is embedded with a magnet (14). The side wall of the socket (2) is equipped with a Hall sensor (15). The first module (1) is equipped with a locking component for locking the terminal (11). The top of the first module (1) is equipped with a feedback component.

2. The harness induced back pull detection terminal back-off tooling of claim 1, wherein, The wiring harness hole 1 (3) is provided with a connecting piece 1 (4), and a connecting piece 3 (23) is provided between the connecting piece 1 (4) and the connecting piece 2 (5).

3. The harness induced back pull detection terminal back-off tooling of claim 1, wherein, The connecting piece 2 (5) is in the shape of an "I" and a return spring (7) is connected between the inner wall of the insertion hole (2) and the connecting piece 2 (5).

4. The wiring harness induced pull-back detection terminal retraction fixture according to claim 1, characterized in that, The force detection mechanism includes a group of resistance strain gauges (6) arranged on the connecting piece two (5).

5. The wiring harness induced pull-back detection terminal retraction fixture according to claim 1, characterized in that, The locking assembly includes a housing (16) embedded in module one (1), a servo motor (19) is installed inside the housing (16), a locking arm (20) is fixed to the output shaft of the servo motor (19), a locking groove (21) matching the locking arm (20) is provided on the terminal (11), a moving groove (22) communicating with the socket (2) and the housing (16) is provided on the module one (1), a positioning block (17) is fixed on the housing (16), and a positioning groove (18) fitting with the positioning block (17) is provided on the module one (1).

6. The wiring harness induced pull-back detection terminal retraction fixture according to claim 1, characterized in that, A photoelectric induction component (12) is provided above the socket (2). The photoelectric induction component (12) includes a light guide column (121) embedded in module one (1). An LED chip (122) is installed in the light guide column (121).

7. The wiring harness induced pull-back detection terminal retraction fixture according to claim 1, characterized in that, The feedback components include a buzzer (24) and a dual-color LED light (25).

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