Welding device for wire harness terminal and PCB (printed circuit board)

Abstract

The utility model discloses a welding device for a wire harness terminal and a PCB (printed circuit board), which comprises a mounting frame, an automatic welding mechanism mounted at the top of the front surface of the mounting frame, a first linear lead screw module mounted at the bottom of the front surface of the mounting frame, and a pneumatic material taking clamp mounted on the front surface of a material taking clamp mounting plate and used for clamping the PCB, a pneumatic ejector rod is installed at the bottom of a first linear lead screw module shell, a detection mechanism is installed at the top of a profile rod, the automatic welding mechanism is driven by a multi-dimensional linear lead screw module, flexible multi-dimensional movement of a welding head can be achieved, accurate positioning and movement control can be achieved, and the welding efficiency is improved. The PCB and the wire harness of the wire harness terminal are welded through the laser welding head, the welding efficiency and the welding quality are effectively guaranteed, the detection mechanism can automatically detect the quality of a welded product, welding defects are rapidly and accurately recognized through cooperation of the light source and the detection camera, and subjectivity and instability of manual visual inspection are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for producing terminal wires, in particular to a welding device for wiring harness terminals and PCB boards. Background Art

[0002] In the field of electronic product manufacturing, welding of wiring harness terminals and PCB boards is an important process link. The traditional welding method mainly relies on manual operation. The operator needs to manually align the wiring harness terminals with the pads or holes of the PCB board, and then use welding tools for welding. There are many problems with this manual welding method. First, the efficiency of manual welding is low and cannot meet the needs of mass production. Secondly, the welding quality is easily affected by the skills and experience of the operator, resulting in unstable welding quality and problems such as cold welding and leaking welding. In addition, long-term repetitive manual operations are also prone to physical fatigue and occupational diseases of the operator.

[0003] With the continuous development of electronic products, the requirements for wiring harness terminals and PCB board welding are getting higher and higher. In order to improve production efficiency and welding quality, the application of automated welding equipment is becoming more and more extensive. However, the existing automated welding equipment still has some shortcomings in practical applications. For example, some equipment can only realize a single welding function and cannot complete operations such as clamping, transporting and aligning PCB boards, resulting in low production efficiency. Therefore, it is of great practical significance to design an automated welding device with simple structure, complete functions and high cost performance. Utility Model Content

[0004] The utility model aims to provide a welding device for a wiring harness terminal and a PCB board to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding device for wiring harness terminals and PCB boards, comprising a mounting frame, an automatic welding mechanism is installed on the top of the front of the mounting frame, a first linear screw module is installed on the bottom of the front of the mounting frame, a slider of the first linear screw module is connected to a material picking clamp mounting plate, a pneumatic material picking clamp for clamping the PCB board is installed on the front of the material picking clamp mounting plate, and a pneumatic ejector rod is installed on the bottom of the first linear screw module housing; it also includes a profile rod, a detection mechanism is installed on the top of the profile rod, a clamping cylinder is installed on one end of the profile rod through a connecting strut, and both connecting heads of the clamping cylinder are connected to a guide hole limit baffle.

[0006] As a preferred solution of the utility model: the automatic welding mechanism includes a second linear screw module installed horizontally on the top of the front side of the mounting frame, the slider of the second linear screw module is installed with a screw module mounting seat, the front of the screw module mounting seat is installed with a longitudinally arranged third linear screw module, the sliding seat of the third linear screw module is connected to the sliding frame, the bottom of the sliding frame is connected to an L-shaped connecting seat through a connecting rod, the connecting seat is connected to an arc-shaped adjustment plate through a screw, one end of the adjustment plate is installed with a welding head mounting frame, and the front of the welding head mounting frame is installed with a laser welding head.

[0007] As a preferred solution of the utility model: the pneumatic material picking clamp includes an L-shaped upper chuck fixedly connected to the material picking clamp mounting plate, a lower chuck positioned opposite to the bottom of the upper chuck is provided, a cylinder is provided between the upper chuck and the lower chuck, the telescopic end of the cylinder is fixedly connected to the middle part of the upper chuck, and the bottom of the cylinder is fixedly connected to the middle part of the lower chuck.

[0008] As a preferred solution of the utility model: the detection mechanism includes a light source adjustment support fixedly connected to the top of the profile rod, the middle arc groove of the light source adjustment support is equipped with a connecting frame through a screw, a light source is installed at the bottom of one end of the connecting frame, a focusing box is installed at the bottom of the other end of the connecting frame, a camera mounting frame is fixedly installed on the top of the other end of the connecting frame, and a detection camera is fixedly installed at the bottom of one end of the camera mounting frame.

[0009] As a preferred solution of the utility model: a conveyor belt is disposed at the bottom of the detection mechanism and is directly opposite to the conveyor belt. A collecting box is disposed at one end of the conveyor belt, and the collecting box is fixedly connected to a supporting frame of the conveyor belt.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1) The automatic welding mechanism adopts a multi-dimensional linear screw module for driving, which can realize flexible multi-dimensional movement of the welding head, and can accurately position and control the movement. Through the setting of the adjustment plate and the welding head mounting frame, the installation angle and position of the welding head can be easily adjusted to adapt to different models and sizes of wiring harness terminals and PCB boards. The laser welding head is used to weld the PCB board with the wiring harness of the wiring harness terminal, which effectively guarantees the welding efficiency and welding quality, and ensures the firmness and reliability of the solder joint. After the welding is completed, the detection mechanism can automatically perform quality inspection on the welded product. Through the cooperation of the light source and the detection camera, the welding defects can be quickly and accurately identified, avoiding the subjectivity and instability of manual visual inspection;

[0012] 2) The utility model also realizes the automatic sorting function of welding products. Qualified products are automatically conveyed to the collection box through the conveyor belt, realizing the orderly collection and packaging of products. Unqualified products are automatically removed by the pneumatic ejector, avoiding the mixing of unqualified products and ensuring the controllability of product quality. Therefore, the welding device provided by the utility model integrates the functions of automatic loading, welding, detection and sorting, realizing the automation and intelligence of the production process, improving production efficiency, reducing labor costs, ensuring the stability and reliability of welding quality, and has broad application prospects in the field of wire harness terminal production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is one of the structural diagrams of the utility model;

[0015] Figure 3 This is a schematic diagram of the automatic welding mechanism structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the pneumatic material picking clamp of the utility model;

[0017] Figure 5 It is a schematic diagram of the detection mechanism structure of the utility model.

[0018] In the figure: 100, mounting frame; 110, first linear screw module; 120, material clamp mounting plate; 130, pneumatic ejector; 200, automatic welding mechanism; 210, second linear screw module; 220, screw module mounting seat; 230, third linear screw module; 240, sliding frame; 250, connecting rod; 260, connecting seat; 270, adjusting plate; 280, welding head mounting frame; 290, laser welding head; 30 0. Pneumatic material pick-up clamp; 310. Upper chuck; 320. Lower chuck; 330. Cylinder; 400. Profile rod; 410. Connecting support rod; 420. Clamping cylinder; 430. Guide hole limit baffle; 500. Detection mechanism; 510. Light source adjustment support; 520. Connecting frame; 530. Light source; 540. Focusing box; 550. Camera mounting frame; 560. Detection camera; 600. Conveyor belt; 610. Collection box. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5 The utility model provides a technical solution: a welding device for wiring harness terminals and PCB boards, comprising a mounting frame 100, an automatic welding mechanism 200 is installed on the top of the front of the mounting frame 100, a first linear screw module 110 is installed on the bottom of the front of the mounting frame 100, a slider of the first linear screw module 110 is connected to a material picking clamp mounting plate 120, a pneumatic material picking clamp 300 for clamping the PCB board is installed on the front of the material picking clamp mounting plate 120, and a pneumatic ejector 130 is installed on the bottom of the housing of the first linear screw module 110;

[0021] It also includes a profile rod 400, a detection mechanism 500 is installed on the top of the profile rod 400, one end of the profile rod 400 is installed with a clamping cylinder 420 through a connecting support rod 410, and two connecting heads of the clamping cylinder 420 are both connected to a guide hole limit baffle 430.

[0022] Specifically, the mounting frame 100 serves as a supporting structure of the device and provides a mounting platform for other components. The automatic welding mechanism 200 is mounted on the top front of the mounting frame 100 to realize automatic welding operations of the wiring harness terminals and the PCB board. The first linear screw module 110 is mounted on the bottom front of the mounting frame 100, and drives the pneumatic material picking clamp 300 and the material picking mounting plate 120 to move horizontally by driving the slider to realize the clamping and transportation of the PCB board; the pneumatic material picking clamp 300 is mounted on the front of the material picking clamp mounting plate 120, and the clamping and release of the PCB board are realized through pneumatic control. The pneumatic ejector 130 is mounted on the bottom of the shell of the first linear screw module 110 to push down unqualified products and realize the automatic removal of defective products.

[0023] The profile rod 400 is independent of the mounting frame 100 and is fixed to the external supporting structure of the device, and is used to install the support detection mechanism 500. The two connecting heads of the clamping cylinder 420 are respectively connected to the guide hole limit baffle 430. The opening and closing of the guide hole limit baffle 430 is controlled by the telescopic movement of the cylinder to limit and position the PCB board, thereby ensuring the accuracy of the welding position.

[0024] In this embodiment, the automatic welding mechanism 200 includes a second linear screw module 210 installed horizontally on the top of the front side of the mounting frame 100, the slider of the second linear screw module 210 is installed with a screw module mounting seat 220, and the front of the screw module mounting seat 220 is installed with a longitudinally arranged third linear screw module 230, the sliding seat of the third linear screw module 230 is connected to the sliding frame 240, the bottom of the sliding frame 240 is connected to an L-shaped connecting seat 260 through a connecting rod 250, the connecting seat 260 is connected to an arc-shaped adjustment plate 270 through a screw, and a welding head mounting frame 280 is installed at one end of the adjustment plate 270, and a laser welding head 290 is installed on the front of the welding head mounting frame 280.

[0025] Specifically, the automatic welding mechanism 200 uses a multi-dimensional linear screw module to achieve flexible movement and precise positioning of the welding head. The second linear screw module 210 is horizontally installed on the top of the front of the mounting frame 100, and the screw module mounting seat 220 is driven by the slider to move horizontally to achieve horizontal position adjustment of the welding head. The third linear screw module 230 is longitudinally installed on the front of the screw module mounting seat 220, and the sliding seat is driven to drive the sliding frame 240 to move vertically to achieve vertical position adjustment of the welding head.

[0026] The sliding frame 240 is connected to the L-shaped connecting seat 260 through the connecting rod 250, and the connecting seat 260 is connected to the arc-shaped adjustment plate 270 through a screw. By adjusting the fixed position of the screw, the connecting seat 260 and the adjustment plate 270, the welding angle of the laser welding head 290 is adjusted to adapt to different welding requirements. The laser welding head 290 is then used to weld the wiring harness of the PCB board and the wiring harness terminal to ensure the welding quality and efficiency.

[0027] In this embodiment, the pneumatic material picking clamp 300 includes an L-shaped upper chuck 310 fixedly connected to the material picking clamp mounting plate 120, a lower chuck 320 is provided at the bottom of the upper chuck 310 and is positioned opposite to the lower chuck 320, a cylinder 330 is provided between the upper chuck 310 and the lower chuck 320, the telescopic end of the cylinder 330 is fixedly connected to the middle of the upper chuck 310, and the bottom of the cylinder 330 is fixedly connected to the middle of the lower chuck 320.

[0028] Specifically, the pneumatic material clamp 300 is used to clamp and fix the PCB board. When the cylinder 330 is extended, the upper clamp 310 and the lower clamp 320 are opened, and the PCB board can be placed therein. When the cylinder 330 is shortened, the upper clamp 310 and the lower clamp 320 are closed to clamp and fix the PCB board. By controlling the extension and contraction of the cylinder 330, the PCB board can be automatically clamped and released, which facilitates the transportation and positioning of the PCB board.

[0029] In this embodiment, the detection mechanism 500 includes a light source adjustment support 510 fixedly connected to the top of the profile rod 400, and a connecting frame 520 is installed on the middle arc groove of the light source adjustment support 510 through a screw, a light source 530 is installed on the bottom of one end of the connecting frame 520, and a focusing box 540 is installed on the bottom of the other end of the connecting frame 520. A camera mounting frame 550 is fixedly installed on the top of the other end of the connecting frame 520, and a detection camera 560 is fixedly installed on the bottom of one end of the camera mounting frame 550.

[0030] Specifically, the detection mechanism 500 is used to automatically detect the product after welding to determine whether the welding quality is qualified. The light source adjustment bracket 510 can adjust the position and angle of the connecting frame 520 through the arc groove and the screw in the middle. The light source 530 is installed at the bottom of one end of the connecting frame 520 to provide the lighting required for detection. The focusing box 540 can focus the light emitted by the light source 530 to the detection position to improve the detection accuracy. The detection camera 560 is installed at the bottom of one end of the camera mounting frame 550 to capture the image of the welded product and determine whether the welding quality is qualified through the image processing algorithm.

[0031] In this embodiment, a conveyor belt 600 is disposed at the bottom of the detection mechanism 500 and is positioned opposite thereto. A collection box 610 is disposed at one end of the conveyor belt 600 , and the collection box 610 is fixedly connected to a support frame of the conveyor belt 600 .

[0032] Specifically, the conveyor belt 600 is arranged at the bottom of the detection mechanism 500, directly opposite to the detection position. The pneumatic material picking clamp 300 of the qualified product is opened, and the product automatically falls onto the conveyor belt 600. After being transported by the conveyor belt 600, it is collected by the collection box 610. The unqualified products are transported to the pneumatic ejector 130 by the first linear screw module 110 to drive the pneumatic material picking clamp 300, and then automatically ejected by the pneumatic ejector 130 to be separated from the qualified products to avoid mixing, thereby realizing automatic sorting and collection of products and improving production efficiency and controllability of product quality.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding device for a wiring harness terminal and a PCB board, comprising a mounting frame (100), characterized in that: The mounting frame (100) is provided with an automatic welding mechanism (200) at the top of the front face, and a first linear screw module (110) is provided at the bottom of the front face of the mounting frame (100). The slider of the first linear screw module (110) is connected to a material picking clamp mounting plate (120). A pneumatic material picking clamp (300) for picking up a PCB board is provided at the front face of the material picking clamp mounting plate (120). A pneumatic ejector rod (130) is provided at the bottom of the housing of the first linear screw module (110). The mounting frame also includes a profile rod (400). A detection mechanism (500) is provided at the top of the profile rod (400). A clamping cylinder (420) is provided at one end of the profile rod (400) via a connecting support rod (410). Both connecting heads of the clamping cylinder (420) are connected to a guide hole limit baffle (430).

2. A welding device for wiring harness terminals and PCB boards according to claim 1, characterized in that: The automatic welding mechanism (200) comprises a second linear screw module (210) installed transversely on the top of the front face of the mounting frame (100); a slider of the second linear screw module (210) is installed with a screw module mounting seat (220); a third linear screw module (230) arranged longitudinally is installed on the front face of the screw module mounting seat (220); a sliding seat of the third linear screw module (230) is connected to a sliding frame (240); the bottom of the sliding frame (240) is connected to an L-shaped connecting seat (260) via a connecting rod (250); the connecting seat (260) is connected to an arc-shaped adjusting plate (270) via a screw; a welding head mounting frame (280) is installed at one end of the adjusting plate (270); a laser welding head (290) is installed on the front face of the welding head mounting frame (280).

3. A welding device for wiring harness terminals and PCB boards according to claim 1, characterized in that: The pneumatic material picking clamp (300) includes an L-shaped upper clamp (310) fixedly connected to the material picking clamp mounting plate (120), a lower clamp (320) is provided at the bottom of the upper clamp (310) and is positioned opposite to the lower clamp (320), a cylinder (330) is provided between the upper clamp (310) and the lower clamp (320), the telescopic end of the cylinder (330) is fixedly connected to the middle of the upper clamp (310), and the bottom of the cylinder (330) is fixedly connected to the middle of the lower clamp (320).

4. A welding device for wiring harness terminals and PCB boards according to claim 1, characterized in that: The detection mechanism (500) comprises a light source adjustment support (510) fixedly connected to the top of the profile rod (400); a connecting frame (520) is installed on the middle arc groove of the light source adjustment support (510) via a screw; a light source (530) is installed on the bottom of one end of the connecting frame (520); a focusing box (540) is installed on the bottom of the other end of the connecting frame (520); a camera mounting frame (550) is fixedly installed on the top of the other end of the connecting frame (520); and a detection camera (560) is fixedly installed on the bottom of one end of the camera mounting frame (550).

5. The welding device for wiring harness terminals and PCB boards according to claim 1, characterized in that: A conveyor belt (600) is disposed at the bottom of the detection mechanism (500) and is positioned opposite thereto. A collection box (610) is disposed at one end of the conveyor belt (600), and the collection box (610) is fixedly connected to a support frame of the conveyor belt (600).

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