Wire harness terminal riveting device

Abstract

The invention relates to a wiring harness terminal riveting device which comprises a crimping device and a base, two limiting blocks arranged at an interval are arranged on the base, a sliding groove for the limiting blocks to slide is formed in the upper end face of the base, a first elastic piece is arranged in the sliding groove, one end of the first elastic piece is connected with the bottom face of the sliding groove, and the other end of the first elastic piece is connected with the limiting blocks. When the first elastic piece is in a natural state, the limiting blocks are partially located above the upper end face of the base, a containing space for containing a wire harness terminal is formed between the two limiting blocks, and when the first elastic piece is compressed, the limiting blocks move towards the bottom face of the sliding groove. The wire harness terminal pressing device has the advantages that the wire harness terminal is kept in place and not inclined before being pressed, and therefore the qualified rate of the pressed wire harness terminal is improved.

Description

Technical Field

[0001] The present application relates to the technical field of terminal crimping equipment, and in particular to a wiring harness terminal riveting device. Background Art

[0002] A wire harness terminal riveting device uses mechanical force, air pressure, or hydraulic pressure to create a riveted connection between wires and terminals. Its primary function is to create a secure connection between the wire and terminal, ensuring circuit stability and transmission efficiency. The operating principle of a wire harness terminal riveting device is based on the physical principles of pressure and deformation. By applying high pressure and intense heat (or sometimes just high pressure), the wire and terminal undergo plastic deformation at the interface, creating a tight connection. This connection offers high strength and stability, capable of withstanding heavy loads.

[0003] There are many types of wire harness terminal riveting devices, including manual riveting devices, semi-automatic riveting devices and fully automatic riveting devices.

[0004] In the prior art, wire harness terminals are generally placed on a workbench before riveting, and then pressed by a hydraulic cylinder to complete the riveting work. However, when the wire harness terminals are placed on the workbench, they may be offset in position or orientation, thereby affecting the subsequent riveting effect. Summary of the Invention

[0005] In order to keep the wiring harness terminals in an orderly position before pressing, the present application provides a wiring harness terminal riveting device.

[0006] The present application provides a wiring harness terminal riveting device that adopts the following technical solution: A wiring harness terminal riveting device includes a crimping device and a base, wherein the base is provided with two spaced-apart limit blocks, the upper end surface of the base is provided with a slide groove for the limit blocks to slide, and a first elastic member is provided in the slide groove, one end of the first elastic member is connected to the bottom surface of the slide groove, and the other end is connected to the limit block. When the first elastic member is in a natural state, the limit block is partially located above the upper end surface of the base, and an accommodating space for accommodating the wiring harness terminal is formed between the two limit blocks. When the first elastic member is compressed, the limit block moves toward the bottom surface of the slide groove.

[0007] Preferably, the upper end surface of the base located in the accommodating space is provided with a sensing device, and when the sensing device contacts the wiring harness terminal, the sensing device outputs a sensing signal.

[0008] Preferably, the sensing device is a pressure sensor, and the sensing end of the pressure sensor is flush with the upper end surface of the base.

[0009] Preferably, a first transmitting device is provided in the base, and the first transmitting device is connected to the sensing device. When the first transmitting device receives the sensing signal, it sends a positioning signal. The crimping device is connected to a first receiving device. When the first receiving device receives the positioning signal, the crimping device starts the crimping action.

[0010] Preferably, a conveying device is further included, so the conveying device includes a conveyor belt, the conveyor belt is located on one side of the crimping device, the base is located above the conveyor belt, and the base moves horizontally under the drive of the conveyor belt.

[0011] Preferably, the first emitting device is a ray emitter, the first receiving device is a ray receiver, and the first receiving device is arranged on the side of the crimping device facing the base. When the base moves to the front of the crimping device driven by the conveyor belt, the emitted ray directly hits the first receiving device, and at this time the crimping device starts the crimping action.

[0012] Preferably, it also includes a second emitting device and a second receiving device, the second emitting device is a ray emitter, the second emitting device is arranged in the base and connected to the sensing device, when the sensing device is not in contact with the sensing device, the second emitting device emits rays, the second receiving device is a ray receiver, the second receiving device is located in front of the first receiving device in the conveying direction of the conveyor belt, the base passes through the second receiving device first and then the first receiving device under the drive of the conveyor belt, when the base moves to the front of the second receiving device, the rays of the second emitting device can directly hit the second receiving device.

[0013] Preferably, a correction device is also included, which includes a driving mechanism and a push block. The correction device is signal-connected to the second receiving device. When the second receiving device receives the rays emitted by the second transmitting device, the driving mechanism drives the push block to move toward the base to the accommodating space to push the wiring harness terminal in the accommodating space to the bottom.

[0014] Preferably, the push block is provided with a second elastic member and a push head at one end facing the base, and the two ends of the second elastic member are respectively connected to the push head and the push block.

[0015] Preferably, a baffle is provided on the base on one side of the two limit blocks.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. Before pressing the wire harness terminals, keep them in place without tilting, thereby improving the qualified rate of the wire harness terminals after pressing; 2. When the wiring harness terminal is not placed in place, the correction device can correct the position of the wiring harness terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the wiring harness terminal after being pressed according to an embodiment of the present application; Figure 2 This is a schematic diagram of the overall structure of Example 1 of the present application; Figure 3 This is a structural diagram of a base according to an embodiment of the present application; Figure 4 is a cross-sectional view of a base according to a first embodiment of the present application; Figure 5 This is a schematic diagram of the overall structure of Example 2 of the present application; Figure 6 It is a structural diagram of the base of Example 2 of the present application.

[0018] Explanation of the accompanying drawings: 1. Crimping device; 2. Base; 3. Limiting block; 4. Slide groove; 5. First elastic member; 6. Sensing device; 7. First transmitting device; 8. First receiving device; 9. Conveyor belt; 10. Second transmitting device; 11. Second receiving device; 13. Correcting device; 13. Push block; 14. Second elastic member; 15. Push head; 16. Baffle. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-6 This application is described in further detail.

[0020] The wiring harness terminal consists of two parts: the terminal and the wiring harness. The terminal includes a base and crimping wings integrally formed on both sides of the base. Before being pressed, the cross section of the terminal is close to a U shape. Figure 1 As shown, the wiring harness terminal in the figure omits the wiring harness. When the wiring harness terminal is properly pressed, the two crimping wings bend toward each other and contact, and the wing tips of the crimping wings are pressed and bent downward. The wiring harness terminal must be positioned in an upright U-shape before pressing. If the wiring harness terminal is tilted or tilted, it may cause a large height difference between the two wing tips of the wiring harness terminal, crimp cracks, and wing tip contact with the wall. Therefore, ensuring that the wiring harness terminal is placed upright before pressing is a key factor in improving the qualified rate of wiring harness terminals. Example 1

[0021] The first embodiment of the present application discloses a wiring harness terminal riveting device. Figure 2 , comprising a crimping device 1 and a base 2. In this embodiment, the base 2 is installed in a fixed position.

[0022] Reference Figure 3 and Figure 4Two limit blocks 3 are arranged on the base 2 at intervals. A chute 4 is provided on the base 2 directly below the limit blocks 3. The limit blocks 3 are in the shape of a rectangular parallelepiped. The horizontal cross section of the chute 4 is the same as or slightly larger than the horizontal cross section of the limit blocks 3, so that the limit blocks 3 can slide up and down in the chute 4. The chute 4 also limits the limit blocks 3 and restricts their horizontal movement. Figure 3 A first elastic member 5 is provided at the bottom of the chute 4. In this embodiment, the first elastic member 5 is a spring. In other embodiments, the first elastic member 5 may also be other elastic structures, such as a spring, a torsion spring, etc. One end of the first elastic member 5 is fixedly connected to the bottom surface of the chute 4 by welding or the like, and the other end is fixedly connected to the bottom surface of the limit block 3 by welding or the like. When the limit block 3 is in a natural state, the lower end portion of the limit block 3 is located in the chute 4, and the upper end portion of the limit block 3 is located on the upper end surface of the base 2. The natural state refers to the state in which the first elastic member 5 is only subject to the gravity of the limit block 3. A storage space for accommodating the wiring harness terminal is formed between the upper end surface of the base 2 and the two limit blocks 3. The distance between the two limit blocks 3 depends on the width of the wiring harness terminal. The distance between the two limit blocks 3 is slightly larger than the width of the two sides of the wiring harness terminal. When the wiring harness terminal is placed in the storage space formed between the two limit blocks 3, the two sides of the wiring harness terminal are respectively in contact with the opposite surfaces of the two limit blocks 3. When downward pressure is applied to the upper portion of the limiting block 3 , the limiting block 3 moves toward the bottom surface of the sliding groove 4 , and the first elastic member 5 is compressed.

[0023] In this embodiment, the crimping device 1 includes a pressing head, which is located directly above the accommodating space. When the wiring harness terminal is placed in the accommodating space, the crimping device 1 is activated, and the pressing head moves downward. The two sides of the lower end face of the pressing head abut against the upper end face of the limit block 3, and then continue to move downward until the pressing head presses the wiring harness terminal into shape. During this process, the two limit blocks 3 are pushed by the pressing head and move toward the bottom surface of the slide 4. The opposing inner sides of the two limit blocks 3 always abut against the two sides of the wiring harness terminal. Therefore, the wiring harness terminal always remains in a vertical position before being pressed and does not tilt to one side, thereby achieving a high yield rate of the wiring harness terminal after pressing.

[0024] Reference Figure 4 A sensing device 6 is provided on the upper end surface of the base 2, located within the receiving space. When the sensing device 6 contacts the wiring harness terminals, it outputs a sensing signal. The sensing device 6 is mounted on the upper end surface of the base 2 by creating a groove therein and then installing the sensing device 6 within the groove. In this embodiment, the sensing device 6 is a pressure sensor, with the sensing end of the pressure sensor flush with the upper end surface of the base 2. In other embodiments, the sensing device 6 can also be a contact switch or other device that generates a signal through contact.

[0025] A first transmitting device 7 is also provided in the base 2. The first transmitting device 7 is connected to the sensing device 6 and is used to receive the sensing signal emitted by the sensing device 6 and send a positioning signal when the sensing signal is received. The crimping device 1 is connected to a first receiving device 8. The first receiving device 8 is used to receive the positioning signal and control the crimping device 1 to perform a crimping action when the positioning signal is received. The crimping action is that the pressure head moves downward to press the wiring harness terminal and then resets. In this embodiment, the first transmitting device 7 is a ray transmitter, a signal generator, etc. When the first transmitting device 7 is a ray transmitter, the first receiving device 8 is a ray receiver. At this time, the first transmitting device 7 and the first receiving device 8 need to be arranged relative to each other. The positioning signal is the ray emitted by the ray transmitter. When the ray receiver receives the ray, the crimping device 1 performs a crimping action. When the first transmitting device 7 is a signal generator, the second receiving device 11 is a signal receiver. The signal transmitter sends a wireless signal as a positioning signal. Example 2

[0026] Reference Figure 5 and Figure 6 Based on Example 1, the wire harness terminal riveting device further includes a conveying device comprising a conveyor belt 9 located on one side of the crimping device 1. A base 2 is mounted above the conveyor belt 9. Multiple bases 2 may be mounted on the conveyor belt 9. The conveyor belt 9 may be horizontal or vertical, as long as it can achieve circular motion. In the figure, only one conveying surface of the conveyor belt 9 is shown. The base 2 moves horizontally, at least when driven by the conveyor belt 9 while passing through the crimping device 1. In this embodiment, the first emitting device 7 is a radiation emitter, and the first receiving device 8 is a radiation receiver. The first receiving device 8 is located on the front of the crimping device 1. When the base 2 is driven by the conveyor belt 9 and faces the crimping device 1, the radiation emitted by the first emitting device 7 directly enters the first receiving device 8, the conveyor belt 9 stops, the wire harness terminal is directly below the crimping head, and the crimping device 1 performs the crimping operation. The radiation emitted by the first emitting device 7 not only indicates that the wire harness terminal is properly placed within the receiving space, but also cooperates with the first receiving device 8 to indicate that the wire harness terminal is directly below the crimping head.

[0027] A second emitting device 10 is also installed within the base 2 and is connected to the sensing device 6. This device acts as a radiation emitter and emits radiation when the wiring harness terminals are not in contact with the sensing device 6. A second receiving device 11 is located in front of the first receiving device 8 in the conveyor belt 9's direction of travel. This receiving device 11 is used to receive radiation emitted by the second emitting device 10. When the radiation emitted by the first and second emitting devices 7 and 10 are identical, to prevent interference, the emitting ends of the first and second emitting devices 7 and 10 are located on opposite sides of the base 2, so that the radiation emitted from the first and second emitting devices 7 and 10 is emitted in opposite directions.

[0028] The second receiving device 11 is connected to a correction device 13, which includes a driving mechanism and a push block 13. The correction device 13 is signal-connected to the second receiving device 11. When the second receiving device 11 receives the radiation emitted by the second emitting device 10, it indicates that the wiring harness terminal is not in place. The reason why the wiring harness terminal is not in place may be that the crimping wings on both sides of the wiring harness terminal are tilted outward, causing the maximum width of the wiring harness terminal to be greater than the distance between the limit blocks 3, so that the wiring harness terminal is stuck between the two limit blocks 3 and cannot naturally fall to the bottom of the accommodating space. It may also be that the wiring harness terminal is tilted, etc. The correction device 13 is located on one side of the conveyor belt 9. When the second receiving device 11 receives the radiation emitted by the second emitting device 10, the conveyor belt is controlled to stop, and the push block 13 of the correction device 13 is located just above the wiring harness terminal that is not in place.

[0029] The end of the push block 13 facing the base 2 is equipped with a second elastic member 14 and a push head 15. The two ends of the second elastic member 14 connect the push head 15 and the push block 13, respectively. The shape of the push block 13 matches the shape of the wiring harness terminal, forcing the wiring harness terminal to return to its original position when the push head 15 pushes it to contact the sensing device 6. The second elastic member 14 is a spring that acts as a buffer, preventing the push head 15 from moving downward excessively and damaging the sensing device 6 and other components.

[0030] Compared to Example 1, Example 2 adds an automatic feeding device for the wiring harness terminals. Driven by the conveyor belt 9, the wiring harness terminals can be automatically pressed in batches. Furthermore, when the wiring harness terminals are in place, the position of the wiring harness terminals is corrected without manual correction, reducing manual intervention and improving work efficiency.

[0031] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A wiring harness terminal riveting device, comprising a crimping device (1) and a base (2), characterized in that: The base (2) is provided with two spaced apart limit blocks (3); the upper end surface of the base (2) is provided with a slide groove (4) for the limit block (3) to slide; a first elastic member (5) is provided in the slide groove (4); one end of the first elastic member (5) is connected to the bottom surface of the slide groove (4) and the other end is connected to the limit block (3); when the first elastic member (5) is in a natural state, the limit block (3) is partially located above the upper end surface of the base (2); an accommodating space for accommodating the wiring harness terminal is formed between the two limit blocks (3); when the first elastic member (5) is compressed, the limit block (3) moves toward the bottom surface of the slide groove (4).

2. The wiring harness terminal riveting device according to claim 1, characterized in that: The upper end surface of the base (2) located in the accommodating space is provided with a sensing device (6); when the sensing device (6) contacts the wiring harness terminal, the sensing device (6) outputs a sensing signal.

3. The wiring harness terminal riveting device according to claim 2, characterized in that: The sensing device (6) is a pressure sensor, and the sensing end of the pressure sensor is flush with the upper end surface of the base (2).

4. The wiring harness terminal riveting device according to claim 2, characterized in that: A first transmitting device (7) is provided in the base (2), and the first transmitting device (7) is connected to the sensing device (6). When the first transmitting device (7) receives the sensing signal, it sends a positioning signal. The crimping device (1) is connected to a first receiving device (8). When the first receiving device (8) receives the positioning signal, the crimping device (1) starts to perform a crimping action.

5. The wiring harness terminal riveting device according to claim 4, characterized in that: It also includes a conveying device, so the conveying device includes a conveyor belt (9), the conveyor belt (9) is located on one side of the crimping device (1), the base (2) is located above the conveyor belt (9), and the base (2) moves horizontally under the drive of the conveyor belt (9).

6. The wiring harness terminal riveting device according to claim 5, characterized in that: The first emitting device (7) is a ray emitter, and the first receiving device (8) is a ray receiver. The first receiving device (8) is arranged on the side of the crimping device (1) facing the base (2). When the base (2) moves to the front of the crimping device (1) driven by the conveyor belt (9), the emitted ray directly hits the first receiving device (8), and at this time the crimping device (1) starts the crimping action.

7. The wiring harness terminal riveting device according to claim 6, characterized in that: The invention also includes a second emitting device (10) and a second receiving device (11), wherein the second emitting device (10) is a ray emitter, and the second emitting device (10) is arranged in the base (2) and connected to the sensing device (6). When the wiring harness terminal does not contact the sensing device (6), the second emitting device (10) emits rays, and the second receiving device (11) is a ray receiver. The second receiving device (11) is located in front of the first receiving device (8) in the conveying direction of the conveyor belt (9). Driven by the conveyor belt (9), the base (2) first passes through the second receiving device (11) and then passes through the first receiving device (8). When the base (2) moves to the front of the second receiving device (11), the rays of the second emitting device (10) can directly hit the second receiving device (11).

8. The wiring harness terminal riveting device according to claim 7, characterized in that: The device further comprises a correction device (13), the correction device (13) comprising a driving mechanism and a push block (13), the correction device (13) being connected to the second receiving device (11) by signal, and when the second receiving device (11) receives the radiation emitted by the second emitting device (10), the driving mechanism drives the push block (13) to move toward the base (2) to the accommodation space to push the wiring harness terminal in the accommodation space to the bottom.

9. The wiring harness terminal riveting device according to claim 8, characterized in that: The push block (13) is provided with a second elastic member (14) and a push head (15) at one end facing the base (2), and the two ends of the second elastic member (14) are respectively connected to the push head (15) and the push block (13).

10. The wiring harness terminal riveting device according to claim 2, characterized in that: A baffle (16) is provided on the base (2) on one side of the two limit blocks (3).

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