Automobile wire harness terminal ultrasonic welding device

Abstract

The utility model discloses an automobile wire harness terminal ultrasonic welding device relates to the field of automobile wire harness processing, and it is including: ultrasonic welding machine body, the one side fixed connection of ultrasonic welding machine body has electric telescopic handle, and the one end fixed connection of electric telescopic handle has the ultrasonic welding head of ultrasonic welding machine body's sliding limit, and the one side of ultrasonic welding head is provided with welding pressure piece, and welding pressure piece is fixedly connected in the one side of ultrasonic welding machine body, and the one side rotationally connected of ultrasonic welding machine body has wire slot wheel, and the one side of wire slot wheel is annular and has a plurality of discharge grooves in equal interval structure, and the discharge groove is elastically connected with the pressing plate in the discharge groove through spring piece, and the one side of wire slot wheel is provided with driving motor and material limiting plate. The automobile wire harness terminal ultrasonic welding device, through driving motor drives wire slot wheel to rotate, and the discharge groove on wire slot wheel sends terminal copper sheet to welding position in turn, and material limiting plate guarantees that only one terminal copper sheet enters the welding area each time, realizes automatic feeding.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness processing technology, specifically to an ultrasonic welding device for automotive wiring harness terminals. Background Technology

[0002] In the complex system of automobile manufacturing, automotive wiring harnesses, like a neural network, are distributed throughout the entire vehicle. They form the core network of the automotive circuitry, bearing the crucial mission of transmitting power and signals to various electronic components. Their performance directly affects the overall operational safety of the vehicle. An automotive wiring harness consists of hundreds or even thousands of wires of different specifications connected to corresponding terminals. The quality and precision of these connections are core elements in ensuring the long-term stable operation of the automotive electrical system and improving its reliability. Currently, the mainstream wiring harness and terminal connection processes in the industry mainly include two categories: crimping and welding. Among them, the traditional crimping method has insurmountable technical bottlenecks: the contact resistance at the crimped joint is generally high, which leads to increased energy loss during circuit transmission and may even cause safety hazards such as localized overheating. More importantly, the mechanical strength of the crimped connection point often cannot meet the requirements of complex automotive operating conditions, thus usually requiring additional spot welding reinforcement. This secondary processing step not only significantly extends the production cycle and reduces overall production efficiency, but also requires the use of flux and solder during spot welding. The introduction of these materials can easily lead to a further increase in the resistance of the weld point, and may also cause hidden defects such as cold solder joints or false solder joints due to improper operation, posing a risk to the long-term stable operation of the automotive circuit. As the automotive industry transforms towards intelligent and electric vehicles, the industry is placing more stringent demands on the product quality (such as conductivity and connection stability) and production efficiency of automotive wiring harnesses. Against this backdrop, ultrasonic metal welding technology, as a new and advanced welding process that combines high efficiency and high quality, is gradually gaining widespread application and recognition in the automotive wiring harness manufacturing field. The working principle of this technology is to transfer high-frequency vibration energy to the two metal surfaces to be welded. Under continuous pressure, the metal surfaces undergo intense friction in a solid state, thereby breaking the surface oxide film and promoting the diffusion and fusion of molecular layers at the contact surface, ultimately forming a stable metallurgical bond and achieving high-quality welding. However, existing ultrasonic welding equipment for automotive wiring harness terminals still has significant shortcomings in practical industrial applications: the loading process of the terminal copper sheets is highly dependent on manual placement, which not only increases the labor intensity of operators and makes the operation more cumbersome, but also makes it difficult to guarantee the accuracy of manual placement. Poor welding results are easily caused by positional deviations of the terminal copper sheets (such as angular tilt or center offset). This not only leads to a decrease in the conductivity of the wiring harness and an abnormal increase in resistance, but may also cause quality problems such as incomplete soldering and desoldering, seriously affecting the reliability of the automotive electrical system and even threatening driving safety. Therefore, developing an ultrasonic welding device for automotive wiring harness terminals that can achieve precise positioning of terminal copper sheets and improve welding quality and production efficiency has become an urgent technical problem to be solved in the current automotive wiring harness manufacturing field.

[0003] Therefore, an ultrasonic welding device for automotive wiring harness terminals is provided. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides an ultrasonic welding device for automotive wiring harness terminals, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultrasonic welding device for automotive wiring harness terminals, comprising an ultrasonic welding machine body, an electric telescopic rod fixedly connected to one side of the ultrasonic welding machine body, an ultrasonic welding head fixedly connected to one end of the electric telescopic rod and capable of sliding and limiting relative to the ultrasonic welding machine body, a welding pressure block provided on one side of the ultrasonic welding head, the welding pressure block fixedly connected to one side of the ultrasonic welding machine body, and a wire groove wheel rotatably connected to one side of the ultrasonic welding machine body, the wire groove wheel having multiple feeding slots in an annular, equally spaced structure on one side, a pressure plate elastically connected to the feeding slots by springs, and a drive motor and a limiting plate provided on one side of the wire groove wheel, the drive motor and the limiting plate being fixedly connected to one side of the ultrasonic welding machine body, and the drive motor being fixedly connected to the wire groove wheel.

[0006] Preferably, the ultrasonic welding machine body has two slots symmetrically arranged on one side, and an observation plate is inserted into the two slots. The observation plate is a U-shaped structure made of acrylic sheet.

[0007] Preferably, the welding block and the ultrasonic welding head are arranged in parallel alignment.

[0008] Preferably, the wire groove on the outside of the wire groove wheel for placing the automotive wiring harness is arranged in a corresponding manner with the material feeding groove.

[0009] Preferably, a rubber arc plate is fixedly attached to the groove of the wire wheel for placing the automotive wiring harness.

[0010] Preferably, the pressure plate is configured with a bent structure.

[0011] This utility model provides an ultrasonic welding device for automotive wiring harness terminals. Compared with the prior art, it has the following advantages: 1. This ultrasonic welding device for automotive wiring harness terminals uses a drive motor to rotate a wire groove wheel. The feeding trough on the wheel sequentially transports the copper terminal pieces to the welding position. A limiting plate ensures that only one copper terminal piece enters the welding area at a time, achieving automatic feeding. Simultaneously, the pressure plate inside the feeding trough is elastically connected by springs, allowing for adaptive clamping of copper terminal pieces of different specifications. This ensures precise positioning of the copper terminal pieces during welding, effectively preventing welding quality problems caused by positional deviations.

[0012] 2. This ultrasonic welding device for automotive wiring harness terminals, driven by an electric telescopic rod, can precisely weld the copper terminals to the wiring harness. The welding pressure block, parallel and aligned with the ultrasonic welding head, provides stable pressure during welding, ensuring tight contact at the weld joint, which facilitates the transfer of ultrasonic energy and improves welding quality. The rubber arc plate inside the outer groove of the wire groove wheel increases the friction between the wiring harness and the groove, preventing displacement of the wiring harness during welding and further guaranteeing welding quality. Furthermore, the automatic feeding process reduces manual operation time and improves production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model from the left side; Figure 2 This is a schematic diagram of the overall structure of this utility model on the right side; Figure 3 This is a schematic diagram of the grooved wheel structure of this utility model; Figure 4 This is a schematic diagram of the ultrasonic welding machine body structure connection of this utility model; Figure 5 This is a schematic diagram of the pressure plate structure of this utility model.

[0014] In the diagram: 1. Ultrasonic welding machine body; 2. Electric telescopic rod; 3. Ultrasonic welding head; 4. Welding block; 5. Grooved wheel; 6. Feed chute; 7. Pressure plate; 8. Material limiting plate; 9. Drive motor; 11. Observation plate; 51. Rubber arc plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those of ordinary skill in the art without creative effort are all within the scope of protection of the present utility model.

[0016] Please see Figure 1-5This utility model provides a technical solution: an ultrasonic welding device for automotive wiring harness terminals, including an ultrasonic welding machine body 1. An electric telescopic rod 2 is fixedly connected to one side of the ultrasonic welding machine body 1. An ultrasonic welding head 3, which can slide and limit the movement of the ultrasonic welding machine body 1, is fixedly connected to one end of the electric telescopic rod 2. A welding pressure block 4 is provided on one side of the ultrasonic welding head 3. The welding pressure block 4 is fixedly connected to one side of the ultrasonic welding machine body 1. A wire groove wheel 5 is rotatably connected to one side of the ultrasonic welding machine body 1. A plurality of material feeding grooves 6 are opened on one side of the wire groove wheel 5 in an annular and equally spaced structure. A pressure plate 7 is elastically connected to the material feeding groove 6 through a spring. A drive motor 9 and a limiting plate 8 are provided on one side of the wire groove wheel 5. Both the drive motor 9 and the limiting plate 8 are fixedly connected to one side of the ultrasonic welding machine body 1. The drive motor 9 is connected and fixedly fixed to the wire groove wheel 5.

[0017] At this point, it is worth noting that through the coordinated work of various components, the functions of automatic feeding, precise positioning, and ultrasonic welding of the terminal copper sheets are realized. The electric telescopic rod 2 controls the movement of the ultrasonic welding head 3, the welding pressure block 4 provides welding pressure, and the grooved wheel 5, the feeding chute 6, the pressure plate 7, the drive motor 9, and the limiting plate 8 work together to complete the automatic conveying and positioning of the terminal copper sheets.

[0018] like Figure 4 and Figure 1 The ultrasonic welding machine body 1 has two slots on one side with a symmetrical structure. An observation plate 11 is inserted into the two slots. The observation plate 11 is a U-shaped structure made of acrylic sheet.

[0019] At this point, it is worth noting that the structure of the observation plate 11 facilitates the operator's real-time observation of the welding process, enabling timely detection of problems that occur during the welding process, such as welding position deviations or poor welding results. It also benefits the maintenance and repair of the equipment.

[0020] like Figure 1 The welding pressure block 4 and the ultrasonic welding head 3 are arranged in parallel alignment.

[0021] At this point, it is worth noting that the welding pressure block 4 is parallel and aligned with the ultrasonic welding head 3, which can provide uniform and stable pressure to the welding part during welding, ensuring that the welding part fits tightly, which helps to transmit ultrasonic energy evenly, thereby improving the welding quality and making the welded joint stronger and more reliable.

[0022] like Figure 3 and Figure 1 The wire groove wheel 5 is arranged in a corresponding manner with the wire groove for placing the automotive wire harness on the outside of the wire groove wheel 5. A rubber arc plate 51 is fixedly connected inside the wire groove for placing the automotive wire harness on the outside of the wire groove wheel 5.

[0023] At this point, it is worth noting that the external wire groove of the wire groove wheel 5 is correspondingly set with the feeding groove 6, so that when the terminal copper sheet is transported to the welding position, it can be accurately aligned with the wire harness, which facilitates the welding operation, ensures the accuracy and consistency of welding, and improves welding quality and production efficiency. Meanwhile, the rubber arc plate 51 increases the friction between the wire harness and the wire groove, which can effectively prevent the wire harness from being displaced due to ultrasonic vibration or other external forces during the welding process, ensuring the stability of the wire harness during the welding process, and thus ensuring the welding quality.

[0024] like Figure 5 and Figure 1 The pressure plate 7 is designed with a bent structure.

[0025] At this point, it is worth noting that the bending structure of the pressure plate 7 can better adapt to terminal copper sheets of different shapes and specifications. Through the elastic action of the spring, the terminal copper sheets are pressed more firmly, ensuring that the terminal copper sheets are accurately positioned in the feeding groove 6, avoiding shaking or displacement during conveying and welding, and improving the reliability of welding.

[0026] During operation or use, first, place the automotive wiring harness in the wire groove outside the wire groove wheel 5, and insert the terminal copper sheet into the feeding groove 6 and be elastically pressed and limited by the pressure plate 7. When the drive motor 9 starts, the drive motor 9 drives the wire groove wheel 5 to rotate. When the automotive wire harness placed in the feeding groove 6 rotates to the position of the limiting plate 8, the limiting plate 8 squeezes the rubber arc plate 51 to tightly press and limit the placed automotive wire harness. When the automotive wiring harness and terminal copper sheet in the feeding trough 6 rotate to the space between the welding pressure block 4 and the ultrasonic welding head 3, the electric telescopic rod 2 is intelligently controlled by the ultrasonic welding machine body 1, driving the ultrasonic welding head 3 to approach the welding pressure block 4, and performing high-frequency vibration on the automotive wiring harness and terminal copper sheet to achieve welding. After welding is completed, the electric telescopic rod 2 retracts, the ultrasonic welding head 3 returns to its initial position, the drive motor 9 rotates again, the wire groove wheel 5 rotates at an angle, and the terminal copper sheet in the next feeding groove 6 is transported to the welding position, repeating the welding process.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic welding device for automotive wiring harness terminals, characterized in that, include: An ultrasonic welding machine body (1) is provided with an electric telescopic rod (2) fixedly connected to one side of the ultrasonic welding machine body (1). An ultrasonic welding head (3) that can slide and limit the ultrasonic welding machine body (1) is fixedly connected to one end of the electric telescopic rod (2). A welding pressure block (4) is provided on one side of the ultrasonic welding head (3). The welding pressure block (4) is fixedly connected to one side of the ultrasonic welding machine body (1). A grooved wheel (5) is rotatably connected to one side of the ultrasonic welding machine body (1). A plurality of feeding grooves (6) are provided on one side of the grooved wheel (5) in an annular and equally spaced structure. A pressure plate (7) is elastically connected to the feeding groove (6) through a spring. A drive motor (9) and a limiting plate (8) are provided on one side of the grooved wheel (5). The drive motor (9) and the limiting plate (8) are both fixedly connected to one side of the ultrasonic welding machine body (1). The drive motor (9) is connected and fixed to the grooved wheel (5).

2. The ultrasonic welding device for automotive wiring harness terminals according to claim 1, characterized in that: The ultrasonic welding machine body (1) has two slots on one side with a symmetrical structure. An observation plate (11) is inserted into the two slots. The observation plate (11) is a U-shaped structure made of acrylic sheet.

3. The ultrasonic welding device for automotive wiring harness terminals according to claim 1, characterized in that: The welding block (4) is arranged in parallel alignment with the ultrasonic welding head (3).

4. The ultrasonic welding device for automotive wiring harness terminals according to claim 1, characterized in that: The groove on the outside of the grooved wheel (5) for placing the automotive wiring harness is arranged in a corresponding manner with the feeding groove (6).

5. The ultrasonic welding device for automotive wiring harness terminals according to claim 4, characterized in that: The groove wheel (5) has rubber arc plates (51) fixedly attached to the grooves on the outside of the groove wheel (5) for placing the automotive wiring harness.

6. The ultrasonic welding device for automotive wiring harness terminals according to claim 1, characterized in that: The pressure plate (7) is configured with a bent structure.

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