Automobile connecting wire harness terminal welding device

Abstract

The utility model relates to the technical field of connecting wire harness production, in particular to an automobile connecting wire harness terminal welding device which comprises a bottom plate used for supporting. The utility model has the advantages that the die seat is arranged, the top end of the die seat provides placement positions for a plurality of metal terminals, the pneumatic cylinder is arranged, the sliding frame is arranged at the output end of the pneumatic cylinder, and the pressing assembly, the solder wire conveying assembly and the plurality of hollow solder tips are sequentially arranged on the bottom surface of the sliding frame, so that the metal terminals can be fixed through the extension action of the pneumatic cylinder; the bottom ends of the plurality of hollow soldering bits press a metal terminal, meanwhile, the two driving motors are powered on to drive the plurality of guide rollers to rotate, a tin wire is conveyed into the plurality of hollow soldering bits, and then the tin wire is heated to be melted and enters the connecting position of the terminal and a wire harness, and then the pneumatic cylinder is shortened to move. The welding operation of the terminal and the wire harness is completed, the whole structure is simple, the operation is convenient and fast, and the welding efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production of connecting wire harnesses, in particular to a welding device for terminals of an automotive connecting wire harness. Background Art

[0002] An automotive wire harness is the network main body of an automotive circuit. Without a wire harness, there would be no automotive circuit. A wire harness refers to a component formed by crimping contact terminals (connectors) made of copper material with wires and cables, and then externally plastic-molding an insulator or adding a metal housing, etc., and bundling the wire harness to form a circuit connection. The wire harness industry chain includes wire and cable, connectors, processing equipment, wire harness manufacturing, and downstream application industries. The wire harness has a very wide range of applications and can be used in automobiles, household appliances, computers and communication equipment, various electronic instruments and meters, etc. The body wire harness connects the entire vehicle body and generally has an H-shaped configuration.

[0003] When producing a connecting wire harness, it is necessary to install corresponding metal terminals at the end of the wire harness and fix them by soldering. The traditional welding of terminals and wire harnesses is generally a single-station operation, and its operation efficiency is relatively low. Based on this, a welding device for terminals of an automotive connecting wire harness is proposed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a welding device for terminals of an automotive connecting wire harness, effectively solving the deficiencies of the prior art.

[0005] To achieve the above purpose, an embodiment of one aspect of the utility model provides a welding device for terminals of an automotive connecting wire harness, which includes a bottom plate for support. In the middle of the top surface of the bottom plate, a mold base for limiting the terminals is installed. On one side of the top surface of the bottom plate, a vertical support frame is installed. At the top of the vertical support frame, a pneumatic cylinder is installed, and a sliding frame that moves vertically is installed at its output end. On one side of the bottom surface of the sliding frame, a pressing component for pressing the terminals is installed. On the other side of the bottom surface of the sliding frame, a fixed block is installed. A plurality of hollow soldering iron heads are installed on the bottom surface of the fixed block. In the middle of the bottom surface of the sliding frame, a tin wire conveying component is installed, which conveys tin wire into the interiors of the plurality of hollow soldering iron heads respectively.

[0006] Preferably, according to any of the above solutions, a reinforcing rib plate is installed on the side of the vertical support frame away from the mold base, and two vertically placed guide rails are installed at the top of one side of the vertical support frame. One side of the sliding frame is slidably connected to the two guide rails. The reinforcing rib plate in this solution facilitates improving the structural strength of the vertical support frame. At the same time, the bottom end of the vertical support frame is fixedly connected to the bottom plate through bolts, which facilitates the installation of the guide rails, pneumatic cylinders, and sliding frame. The two guide rails are slidably connected to one side of the sliding frame, which facilitates guiding the up and down movement of the sliding frame, ensuring that the sliding frame can move vertically, and then pushing multiple hollow soldering iron tips to synchronously press the welding position of the terminals and heat them.

[0007] Preferably, according to any of the above solutions, the middle of the sliding frame is hollowed out, and the sliding frame is located directly above the mold base. The hollow structure of the sliding frame in this solution can reduce its relative weight while ensuring its structural strength. At the same time, the sliding frame is directly above the module base, so that the fixing block and the hollow soldering iron tip can be aligned with the welding position of the terminals, ensuring the accuracy of welding.

[0008] Preferably, according to any of the above solutions, the pressing assembly includes a first connecting frame, two springs, two limiting columns, and a pressing rod. The first connecting frame is fixedly connected to the bottom surface of the sliding frame. The bottom ends of the two limiting columns are fixedly connected to the pressing rod, and the top ends of both are slidably connected to the bottom end of the first connecting frame. The two springs are installed on the outer walls of the two limiting columns, and limiting nuts are installed at the top ends of the two limiting columns. This solution facilitates the pneumatic cylinder to extend and push the sliding frame and the pressing assembly to lower the height. Then, the pressing rod in the pressing assembly presses one end of the terminal, preventing the terminal from shaking during welding and ensuring the stability of the terminal during welding.

[0009] Preferably, according to any of the above solutions, the solder wire conveying assembly includes multiple solder wire spool mounting seats, two second connecting frames, two driving motors, two mounting shafts, and multiple guiding rollers. The top ends of the multiple solder wire spool mounting seats are fixedly connected to the bottom surface of the sliding frame. The top ends of the two second connecting frames are fixedly connected to the bottom surface of the fixing block. The multiple guiding rollers are installed on the outer walls of the two mounting shafts. The two driving motors are installed on one side of one of the second connecting frames. One ends of the two mounting shafts are respectively fixedly connected to the output ends of the two driving motors. The bottom ends of the multiple solder wire spool mounting seats in this solution provide installation positions for the solder wire spools. At the same time, the solder wire spools can rotate relative to the bottom ends of the solder wire spool mounting seats, which facilitates the unwinding of the solder wire. The multiple guiding rollers are grouped in pairs and press the solder wire. Then, by energizing the driving motors to run, the multiple guiding rollers are driven to rotate, which facilitates pushing the solder wire into the inside of the hollow soldering iron tip and facilitating the feeding of the solder wire.

[0010] The utility model has the following advantages:

[0011] 1. The automotive connection wire harness terminal welding device provides a placement position for multiple metal terminals at the top by setting a die holder. By setting a pneumatic cylinder, a sliding frame is installed at the output end of the pneumatic cylinder. A pressing component, a tin wire conveying component, and multiple hollow soldering irons are successively installed on the bottom surface of the sliding frame. Then, through the extension action of the pneumatic cylinder, the bottoms of the multiple hollow soldering irons press the metal terminals. At the same time, two driving motors are powered on to drive multiple guiding rollers to rotate, conveying the tin wire into the interiors of the multiple hollow soldering irons. Then, the tin wire is heated and melted and enters the connection position between the terminal and the wire harness. Subsequently, the pneumatic cylinder shortens its action, causing the multiple hollow soldering irons to disengage from the terminals, completing the welding operation of the terminals and the wire harness. The overall structure is simple and the operation is convenient, greatly improving the welding efficiency.

[0012] 2. The automotive connection wire harness terminal welding device is provided with a sliding frame, and a pressing component is installed on one side of the bottom surface of the sliding frame. The pressing component is composed of a first connecting frame, two springs, two limiting columns, and a pressing rod. Through the extension action of the pneumatic cylinder, the sliding frame and the pressing component are pushed down in height, and then the pressing rod presses one end of the terminal, preventing the terminal from moving during the welding process and ensuring the uniformity of welding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 is a schematic sectional structure diagram of the whole of the present utility model;

[0015] Figure 3 is a schematic diagram of the vertical support frame structure of the present utility model;

[0016] Figure 4 is a schematic diagram of the sliding frame structure of the present utility model;

[0017] Figure 5 is a schematic diagram of the structure of the tin wire conveying component of the present utility model.

[0018] In the figure: 1 - bottom plate, 2 - vertical support frame, 3 - pressing component, 301 - first connecting frame, 302 - spring, 303 - limiting column, 304 - pressing rod, 4 - tin wire conveying component, 401 - tin wire reel mounting seat, 402 - second connecting frame, 403 - driving motor, 404 - mounting shaft, 405 - guiding roller, 5 - guide rail, 6 - sliding frame, 7 - pneumatic cylinder, 8 - fixing block, 9 - hollow soldering iron, 10 - die holder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present utility model in conjunction with the drawings, but the protection scope of the present utility model is not limited to the following.

[0020] As shown Figures 1 to 5 in the figure, an automobile connection wire harness terminal welding device includes a bottom plate 1 for support. In the middle of the top surface of the bottom plate 1, a mold base 10 for limiting the terminals is installed. On one side of the top surface of the bottom plate 1, a vertical support frame 2 is installed. At the top of the vertical support frame 2, a pneumatic cylinder 7 is installed, and a sliding frame 6 that moves vertically is installed at its output end. On one side of the bottom surface of the sliding frame 6, a pressing component 3 for pressing the terminals is installed. On the other side of the bottom surface of the sliding frame 6, a fixing block 8 is installed. At the bottom surface of the fixing block 8, a plurality of hollow soldering irons 9 are installed. In the middle of the bottom surface of the sliding frame 6, a tin wire conveying component 4 is installed, which conveys the tin wire into the interiors of the plurality of hollow soldering irons 9 respectively.

[0021] On one side of the vertical support frame 2 away from the mold base 10, a reinforcing rib plate is installed. At the top of one side of the vertical support frame 2, two vertically arranged guide rails 5 are installed. One side of the sliding frame 6 is slidably connected to the two guide rails 5. As an alternative technical solution of the present utility model, the reinforcing rib plate is convenient for improving the structural strength of the vertical support frame 2. At the same time, the bottom end of the vertical support frame 2 is fixedly connected to the bottom plate 1 through bolts, which is convenient for installing the guide rails 5, the pneumatic cylinder 7 and the sliding frame 6. The two guide rails 5 are slidably connected to one side of the sliding frame 6, which is convenient for guiding the up and down movement of the sliding frame 6, ensuring that the sliding frame 6 can move vertically, and then driving the plurality of hollow soldering irons 9 to synchronously press the welding positions of the terminals and heat them.

[0022] The middle of the sliding frame 6 is hollowed out. The sliding frame 6 is located directly above the mold base 10. As an alternative technical solution of the present utility model, the hollowed-out structure of the sliding frame 6 can reduce its relative weight on the premise of ensuring its structural strength. At the same time, the sliding frame 6 is directly above the module base 10, so that the fixing block 8 and the hollow soldering irons 9 can be aligned with the welding positions of the terminals, ensuring the accuracy of welding.

[0023] The pressing component 3 includes a first connecting frame 301, two springs 302, two limiting columns 303 and a pressing rod 304. The first connecting frame 301 is fixedly connected to the bottom surface of the sliding frame 6. The bottom ends of the two limiting columns 303 are fixedly connected to the pressing rod 304, and their top ends are slidably connected to the bottom end of the first connecting frame 301. The two springs 302 are installed on the outer walls of the two limiting columns 303. Limiting nuts are installed at the top ends of the two limiting columns 303. As an alternative technical solution of the present utility model, it is convenient to push the sliding frame 6 and the pressing component 3 to lower the height through the extension action of the pneumatic cylinder 7. Then, the pressing rod 304 in the pressing component 3 presses one end of the terminal, avoiding the shaking of the terminal during welding and ensuring the stability of the terminal during welding.

[0024] The solder wire conveying assembly 4 includes a plurality of solder wire spool mounts 401, two second connecting brackets 402, two drive motors 403, two mounting shafts 404 and a plurality of guide rollers 405. The tops of the plurality of solder wire spool mounts 401 are fixedly connected to the bottom surface of the sliding bracket 6. The tops of the two second connecting brackets 402 are fixedly connected to the bottom surface of the fixed block 8. The plurality of guide rollers 405 are mounted on the outer walls of the two mounting shafts 404. The two drive motors 403 are mounted on one side of a second connecting bracket 402. One ends of the two mounting shafts 404 are respectively fixedly connected to the output ends of the two drive motors 403. As an alternative technical solution of the present utility model, the bottoms of the plurality of solder wire spool mounts 401 provide mounting positions for the solder wire spools. At the same time, the solder wire spools can rotate relative to the bottoms of the solder wire spool mounts 401, thereby facilitating the unwinding of the solder wire. The plurality of guide rollers 405 are grouped in pairs and press the solder wire. Then, by energizing and operating the drive motors 403, the plurality of guide rollers 405 are driven to rotate, thereby facilitating the pushing of the solder wire into the interior of the hollow soldering iron tip 9 and facilitating the feeding of the solder wire.

[0025] For the automotive connection harness terminal soldering device, the following steps are required during use:

[0026] 1) During use, first place the terminals in sequence on the top surface position of the mold base 10;

[0027] 2) Insert the stripped ends of the connection harness into the soldering positions of the terminals in sequence;

[0028] 3) The pneumatic cylinder 7 extends, pushing the bottoms of the plurality of hollow soldering iron tips 9 to press down on the connection positions of the terminals and the connection harness;

[0029] 4) The two drive motors 403 are energized to drive the plurality of guide rollers 405 to rotate, conveying the solder wire into the interiors of the plurality of hollow soldering iron tips 9. The solder wire is heated and melted and then drops into the soldering positions of the terminals and the connection harness;

[0030] 5) The pneumatic cylinder 7 retracts, separating the plurality of hollow soldering iron tips 9 from the terminals. The solder cools and solidifies, completing the soldering of the terminals and the connection harness.

[0031] In summary, when in use, by setting the mold base 10, its top provides a placement position for a plurality of metal terminals. By setting the air cylinder 7, its output end is equipped with a sliding frame 6. The bottom surface of the sliding frame 6 is successively equipped with a pressing component 3, a tin wire conveying component 4, and a plurality of hollow soldering iron heads 9. Then, through the extension action of the air cylinder 7, the bottom ends of the plurality of hollow soldering iron heads 9 press on the metal terminals. At the same time, two driving motors 403 are energized to drive a plurality of guiding rollers 405 to rotate, conveying the tin wire into the interiors of the plurality of hollow soldering iron heads 9. Then the tin wire is heated and melted and enters the connection position between the terminal and the wire harness. Subsequently, the air cylinder 7 shortens its action, causing the plurality of hollow soldering iron heads 9 to disengage from the terminals, completing the welding operation of the terminals and the wire harness. The overall structure is simple and the operation is convenient, greatly improving the welding efficiency. By further setting the sliding frame 6, a pressing component 3 is installed on one side of its bottom surface. The pressing component 3 is composed of a first connecting frame 301, two springs 302, two limiting columns 303, and a pressing rod 304. Through the extension action of the air cylinder 7, the sliding frame 6 and the pressing component 3 are pushed to lower their heights, and then the pressing rod 304 presses on one end of the terminal, preventing the terminal from moving during the welding process and ensuring the uniformity of welding.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for automobile wiring harness terminals, characterized in that: The invention comprises a base plate (1) for supporting, a mold seat (10) for limiting the terminal is installed in the middle of the top surface of the base plate (1), a vertical support frame (2) is installed on one side of the top surface of the base plate (1), a pneumatic cylinder (7) is installed on the top of the vertical support frame (2), and a vertically movable sliding frame (6) is installed on the output end thereof, a clamping assembly (3) for clamping the terminal is installed on one side of the bottom surface of the sliding frame (6), a fixed block (8) is installed on the other side of the bottom surface of the sliding frame (6), a plurality of hollow soldering iron tips (9) are installed on the bottom surface of the fixed block (8), and a tin wire conveying assembly (4) is installed in the middle of the bottom surface of the sliding frame (6), which conveys the tin wire to the inside of the plurality of hollow soldering iron tips (9) respectively.

2. The automotive wiring harness terminal welding device according to claim 1, characterized in that: A reinforcing rib plate is installed on the side of the vertical support frame (2) away from the mold base (10), two vertically placed guide rails (5) are installed on the top of one side of the vertical support frame (2), and one side of the sliding frame (6) is slidably connected to the two guide rails (5).

3. The automotive wiring harness terminal welding device according to claim 2, characterized in that: The middle part of the sliding frame (6) is hollowed out, and the sliding frame (6) is located directly above the mold base (10).

4. The automotive wiring harness terminal welding device according to claim 3, characterized in that: The clamping assembly (3) comprises a first connecting frame (301), two springs (302), two limiting columns (303) and a clamping rod (304); the first connecting frame (301) is fixedly connected to the bottom surface of the sliding frame (6); the bottom ends of the two limiting columns (303) are fixedly connected to the clamping rod (304), and the top ends of the two limiting columns (303) are slidably connected to the bottom end of the first connecting frame (301); the two springs (302) are mounted on the outer walls of the two limiting columns (303), and limiting nuts are mounted on the top ends of the two limiting columns (303).

5. The automotive wiring harness terminal welding device according to claim 4, characterized in that: The tin wire conveying assembly (4) comprises a plurality of tin wire tray mounting seats (401), two second connecting frames (402), two driving motors (403), two mounting shafts (404) and a plurality of guide rollers (405); the top ends of the plurality of tin wire tray mounting seats (401) are fixedly connected to the bottom surface of the sliding frame (6); the top ends of the two second connecting frames (402) are fixedly connected to the bottom surface of the fixing block (8); the plurality of guide rollers (405) are mounted on the outer walls of the two mounting shafts (404); the two driving motors (403) are mounted on one side of a second connecting frame (402); and one end of the two mounting shafts (404) is fixedly connected to the output ends of the two driving motors (403) respectively.

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