A reflow carrier for harness assembly conveyance

Abstract

This utility model discloses a return carrier for wire harness assembly and conveying, relating to the field of wire harness assembly technology. It includes an assembly platform with an mounting groove at its upper end, a conveyor seat above the assembly platform, a slider inside the mounting groove, a support seat above the conveyor seat, a rotating cavity inside the conveyor seat, a first gear inside the rotating cavity, a connecting hole at each of the four corners of the upper end of the support seat, a carrier frame above the support seat, an insert groove in the middle of the carrier frame, and a connecting post at each of the four corners of the lower end of the carrier frame. The return carrier and the support seat are connected by a plug-in method, allowing for selection of a suitable carrier based on the PCB's structural dimensions. The clamping structure on the carrier ensures PCB stability and is also suitable for PCBs smaller than the insert groove, reducing the number of dedicated carriers and improving the efficiency of the return carrier.

Description

Technical Field

[0001] This utility model relates to the field of wire harness assembly technology, specifically a return carrier for wire harness assembly and transportation. Background Technology

[0002] Wire harness assembly is a process of combining wires, cables, etc. into bundles according to specific design requirements. It is widely used in electronic equipment, automobiles, aerospace and other fields to transmit power, signals or data. Reflow carriers are key tools used to support, fix and protect circuit boards in electronic manufacturing processes such as surface mount technology and wave soldering. Through its structural design, material selection and functional characteristics, it directly affects the soldering quality and production efficiency. Reflow carriers use slots, positioning posts, vacuum adsorption and other methods to accurately fix PCBs in designated positions to prevent deformation or displacement caused by thermal stress or mechanical vibration during high-temperature soldering.

[0003] Chinese Patent Publication No. CN220402075U, authorized on January 26, 2024, discloses a reflow carrier, including a carrier frame. The surface of the carrier frame has several inlay slots, the bottom surface of each inlay slot abuts a circuit board. The cross-section of each inlay slot is irregular. An adjustment device is provided on the surface of the carrier frame corresponding to the position of the circuit board. The adjustment device is connected to a slot, which is located on the surface of the carrier frame corresponding to the position of the circuit board. A positioning slot is provided on the bottom surface of the connecting slot. A sliding block is slidably connected to the bottom surface of the inner wall of the positioning slot. A pressing block is fixedly connected to one end of the sliding block near the circuit board. Springs are fixedly connected to both sides of the sliding block, and both ends of the springs are fixedly connected to the inner wall of the connecting slot. The reflow carrier provided by this utility model has the advantage of conveniently and quickly fixing and limiting the circuit board on the carrier.

[0004] Existing reflow carriers are all dedicated carriers. Each FPC model requires a set of carriers. The design of the carrier changes with the PCB structure. The component layout and size are different in each PCB. The carriers are not interchangeable and are inconvenient to replace. Therefore, different dedicated carriers need to be made, which increases the cost and reduces the effectiveness of the reflow carrier, and cannot meet the usage requirements. Utility Model Content

[0005] The purpose of this utility model is to provide a return carrier for wire harness assembly and transportation, in order to solve the problems mentioned in the background art, that existing return carriers are all dedicated carriers, each FPC model requires a set of carriers, the design of the carrier changes with the PCB structure, the component layout and size are different in each PCB, the carriers have no commonality and are inconvenient to replace, so different dedicated carriers need to be manufactured, which increases the cost, reduces the effect of the return carrier, and cannot meet the usage requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a return carrier for wire harness assembly and conveying, comprising an assembly platform, an mounting groove at the upper end of the assembly platform, a conveying seat above the assembly platform, a slider inside the mounting groove and slidably connected to the assembly platform, the slider being connected to the lower end of the conveying seat by screws, a bearing seat above the conveying seat, a rotating cavity inside the conveying seat, a first gear inside the rotating cavity and rotatably connected to the conveying seat, the first gear being fixedly connected to the lower end of the bearing seat, a connecting hole at each of the four corners of the upper end of the bearing seat, a carrier frame above the bearing seat, an inlay groove in the middle of the carrier frame, a connecting post at each of the four corners of the lower end of the carrier frame and fixedly connected to the carrier frame, the connecting post corresponding to the connecting hole and the connecting post being inserted into the bearing seat.

[0007] Preferably, the vehicle frame has two telescopic cavities inside, which are located on both sides of the inlay groove. Each telescopic cavity has a clamping block inside, which is slidably connected to the vehicle frame. Each telescopic cavity also has an electric push rod inside, which is connected to the vehicle frame by screws. The electric push rod is located on one side of the clamping block, and its telescopic end is connected to the clamping block.

[0008] Preferably, both the bearing seat and the first gear have reserved cavities inside, and the reserved cavities are connected to the bearing seat and the first gear. The lower end of the first gear is provided with a rotating connector, and the rotating connector is fixedly connected to the first gear. The rotating connector is connected to the reserved cavity. The upper end of the reserved cavity is provided with a dustproof net, and the dustproof net is integrated with the bearing seat. A fan is provided on one side of the conveyor seat, and the fan is connected to the conveyor seat by screws. An exhaust pipe is provided between the fan and the rotating connector, and the two ends of the exhaust pipe are connected to the fan and the rotating connector, respectively. The exhaust pipe is located inside the conveyor seat.

[0009] Preferably, a drive chamber is provided on one side of the conveyor seat, and the drive chamber is fixedly connected to the conveyor seat. A second motor is provided below the drive chamber, and the second motor is connected to the drive chamber by screws. A second gear is provided inside the drive chamber, and the second gear is connected to the output end of the second motor. The second gear is rotatably connected to the drive chamber. The second gear is located on one side of the first gear, and the second gear meshes with the first gear.

[0010] Preferably, the lower end of the support seat is provided with six balls, which are arranged in a circular and equidistant manner at the lower end of the support seat. The balls are in contact with the upper end of the conveyor seat and are in rolling connection with the conveyor seat and the support seat.

[0011] Preferably, a first motor is provided on one side of the assembly table, and the first motor is connected to the assembly table by screws. A lead screw is provided inside the mounting groove, and one end of the lead screw is connected to the output end of the first motor. The lead screw is threadedly connected to the slider, and the lead screw is rotatably connected to the assembly table.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model device, through the setting of a support base, a carrier frame, a connecting column, and a connecting hole, is composed of a support base and a carrier frame. The connecting column is aligned with the connecting hole and inserted to install the carrier frame and the support base. This facilitates the replacement of carrier frames of different specifications for assembly operations and improves the versatility of the recirculation carrier.

[0014] This utility model device uses an electric push rod, a clamping block, an exhaust fan, and a reserved cavity. The electric push rod drives the clamping block to extend and retract in the telescopic cavity, extending the clamping block to contact the PCB and clamping and fixing it from both sides of the PCB. The exhaust fan generates suction to remove the air between the PCB and the reserved cavity, creating a negative pressure under the PCB. The air pressure is used to adsorb and fix the PCB, which can also ensure the stability of the PCB clamping.

[0015] This utility model device uses a second motor, a first gear, and a second gear. The second motor drives the second gear to rotate, and the second gear meshes with the first gear. As the second gear rotates, it drives the first gear to rotate, which in turn drives the carrier to rotate horizontally, thus adjusting the angle of the return carrier and facilitating assembly operations from different angles for the workers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 For the present utility model Figure 2 A magnified view of a portion of area A;

[0019] Figure 4 This is a perspective view of the vehicle frame of this utility model;

[0020] Figure 5 This is a perspective view of the support base of this utility model.

[0021] In the diagram: 1. Assembly table; 2. Mounting slot; 3. First motor; 4. Conveyor seat; 5. Drive chamber; 6. Bearing seat; 7. Exhaust fan; 8. Carrier frame; 9. Inlay slot; 10. Lead screw; 11. Slider; 12. Second motor; 13. Electric actuator; 14. Reserved cavity; 15. Ball bearing; 16. Rotating cavity; 17. First gear; 18. Second gear; 19. Exhaust pipe; 20. Telescopic cavity; 21. Clamping block; 22. Dustproof net; 23. Connecting column; 24. Connecting hole; 25. Rotary connector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-5 This utility model provides an embodiment of a return carrier for wire harness assembly and conveying, comprising an assembly platform 1, an mounting groove 2 at the upper end of the assembly platform 1, a conveyor seat 4 above the assembly platform 1, a slider 11 inside the mounting groove 2 and slidably connected to the assembly platform 1, the slider 11 being connected to the lower end of the conveyor seat 4 by screws, a bearing seat 6 above the conveyor seat 4, a rotating cavity 16 inside the conveyor seat 4, a first gear 17 inside the rotating cavity 16 and rotatably connected to the conveyor seat 4, and a fixed connection between the first gear 17 and the lower end of the bearing seat 6, a connecting hole 24 at each of the four corners of the upper end of the bearing seat 6, and a carrier frame above the bearing seat 6. 8. A mounting groove 9 is provided in the middle of the vehicle frame 8. A connecting post 23 is provided at each of the four corners of the lower end of the vehicle frame 8. The connecting post 23 is fixedly connected to the vehicle frame 8. The connecting post 23 is correspondingly provided with the connecting hole 24. The connecting post 23 is inserted into the bearing seat 6. A telescopic cavity 20 is provided inside the vehicle frame 8. There are two telescopic cavities 20. The two telescopic cavities 20 are located on both sides of the mounting groove 9. A clamping block 21 is provided inside the two telescopic cavities 20. The clamping block 21 is slidably connected to the vehicle frame 8. An electric push rod 13 is provided inside the telescopic cavity 20. The electric push rod 13 is connected to the vehicle frame 8 by screws. The electric push rod 13 is located on one side of the clamping block 21. The telescopic end of the electric push rod 13 is connected to the clamping block 21.

[0024] In use: Select the appropriate carrier frame 8 according to the size of the PCB, align the connecting post 23 with the connecting hole 24 and insert it, install the carrier frame 8 and the carrier seat 6, and place the PCB into the inlay slot 9. When the size of the PCB is smaller than the inlay slot 9, drive the electric push rod 13 to move the clamping block 21 in the telescopic cavity 20 to extend and contact the PCB, clamping and fixing it from both sides of the PCB. When assembling wire harnesses for larger PCBs, it is convenient to replace the corresponding carrier frame 8 and to better and more accurately position the PCB.

[0025] Please see Figure 1 , Figure 2 and Figure 5 Both the bearing seat 6 and the first gear 17 have reserved cavities 14 inside, and the reserved cavities 14 are connected to the bearing seat 6 and the first gear 17. A rotating connector 25 is provided at the lower end of the first gear 17, and the rotating connector 25 is fixedly connected to the first gear 17 and communicates with the reserved cavity 14. A dustproof net 22 is provided at the upper end of the reserved cavity 14, and the dustproof net 22 is integrated with the bearing seat 6. A fan 7 is provided on one side of the conveyor seat 4, and the fan 7 is connected to the conveyor seat 4 by screws. An exhaust pipe 19 is provided between the fan 7 and the rotating connector 25, and the two ends of the exhaust pipe 19 are connected to the fan 7 and the rotating connector 25 respectively. The exhaust pipe 19 is located inside the conveyor seat 4. When the PCB is placed in the inlay slot 9 and contacts the carrier seat 6, and it is inconvenient to use the clamping block 21 to clamp and fix the PCB, the fan 7 is turned on to generate suction to remove the air between the PCB and the reserved cavity 14, forming a negative pressure under the PCB. The PCB is adsorbed and fixed by the air pressure, which can also ensure the stability of the PCB clamping.

[0026] Please see Figure 1 , Figure 2 and Figure 3A drive chamber 5 is provided on one side of the conveyor seat 4, and the drive chamber 5 is fixedly connected to the conveyor seat 4. A second motor 12 is provided below the drive chamber 5, and the second motor 12 is connected to the drive chamber 5 by screws. A second gear 18 is provided inside the drive chamber 5, and the second gear 18 is connected to the output end of the second motor 12. The second gear 18 is rotatably connected to the drive chamber 5. The second gear 18 is located on one side of the first gear 17, and the second gear 18 is meshed with the first gear 17. A ball bearing 15 is provided at the lower end of the bearing seat 6. There are six balls 15, which are arranged in a circular and equidistant manner at the lower end of the support seat 6. The balls 15 are in contact with the upper end of the conveyor seat 4 and are in rolling connection with the conveyor seat 4 and the support seat 6. The second motor 12 drives the second gear 18 to rotate. The second gear 18 meshes with the first gear 17. As the second gear 18 rotates, it drives the first gear 17 to rotate, which in turn drives the support seat 6 to rotate horizontally. This allows for horizontal adjustment of the angle of the placed PCB, making it convenient for workers to perform assembly operations from different angles.

[0027] Please see Figure 1 and Figure 2 A first motor 3 is provided on one side of the assembly table 1, and the first motor 3 is connected to the assembly table 1 by screws. A lead screw 10 is provided inside the mounting groove 2, and one end of the lead screw 10 is connected to the output end of the first motor 3. The lead screw 10 is threadedly connected to the slider 11, and the lead screw 10 is rotatably connected to the assembly table 1. The first motor 3 drives the lead screw 10 to rotate. The lead screw 10 is threadedly connected to the slider 11. As the lead screw 10 rotates, it applies a pushing and pulling force to the slider 11, which drives the conveyor seat 4 to move along the mounting groove 2 to realize the conveying function.

[0028] Working principle: Select a suitable carrier frame 8 according to the size of the PCB, align the connecting post 23 with the connecting hole 24 and insert it. Install the carrier frame 8 and the support 6, and place the PCB into the mounting slot 9. When the size of the PCB is smaller than the mounting slot 9, drive the electric push rod 13 to move the clamping block 21 in the telescopic cavity 20, extending the clamping block 21 to contact the PCB and clamping and fixing it from both sides. When assembling wire harnesses for larger PCBs, it is convenient to replace the corresponding carrier frame 8 and to better and more accurately position the PCB. Turn on the exhaust fan 7 to generate suction, which removes the air between the PCB and the reserved cavity 14, forming a negative pressure under the PCB. The first motor 12 uses air pressure to adsorb and fix the PCB, ensuring the stability of the PCB clamping. The second motor 12 drives the second gear 18 to rotate, and the second gear 18 meshes with the first gear 17. As the second gear 18 rotates, it drives the first gear 17 to rotate, which in turn drives the carrier 6 to rotate horizontally. This allows for horizontal adjustment of the angle of the placed PCB, facilitating assembly operations from different angles. The first motor 3 drives the lead screw 10 to rotate, and the lead screw 10 is threadedly connected to the slider 11. As the lead screw 10 rotates, it applies a pushing and pulling force to the slider 11, causing the conveyor seat 4 to move along the mounting groove 2, thus realizing the conveying function.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] 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. A return carrier for assembling and conveying wire harnesses, comprising an assembly table (1), characterized in that: The assembly platform (1) has an installation groove (2) at its upper end, and a conveyor seat (4) is provided above the assembly platform (1). A slider (11) is provided inside the installation groove (2), and the slider (11) is slidably connected to the assembly platform (1). The slider (11) is connected to the lower end of the conveyor seat (4) by screws. A bearing seat (6) is provided above the conveyor seat (4), and a rotating cavity (16) is provided inside the conveyor seat (4). A first gear (17) is provided inside the rotating cavity (16), and the first gear (17) is connected to the lower end of the conveyor seat (4). The first gear (17) is fixedly connected to the lower end of the bearing seat (6). A connecting hole (24) is provided at each of the four corners of the upper end of the bearing seat (6). A vehicle frame (8) is provided above the bearing seat (6). An inlay groove (9) is provided in the middle of the vehicle frame (8). A connecting post (23) is provided at each of the four corners of the lower end of the vehicle frame (8). The connecting post (23) is fixedly connected to the vehicle frame (8). The connecting post (23) is correspondingly provided with the connecting hole (24). The connecting post (23) is inserted into the bearing seat (6).

2. The return carrier for wire harness assembly and conveying according to claim 1, characterized in that: The vehicle frame (8) is provided with a telescopic cavity (20). There are two telescopic cavities (20), and the two telescopic cavities (20) are located on both sides of the inlay groove (9). Each of the two telescopic cavities (20) is provided with a clamping block (21), and the clamping block (21) is slidably connected to the vehicle frame (8). Each of the telescopic cavities (20) is provided with an electric push rod (13), and the electric push rod (13) is connected to the vehicle frame (8) by screws. The electric push rod (13) is located on one side of the clamping block (21), and the telescopic end of the electric push rod (13) is connected to the clamping block (21).

3. The return carrier for wire harness assembly and conveying according to claim 1, characterized in that: Both the bearing seat (6) and the first gear (17) are provided with a reserved cavity (14), and the reserved cavity (14) is connected to the bearing seat (6) and the first gear (17). The lower end of the first gear (17) is provided with a rotating connector (25), and the rotating connector (25) is fixedly connected to the first gear (17). The rotating connector (25) is connected to the reserved cavity (14). The upper end of the reserved cavity (14) is provided with a dustproof net (22), and the dustproof net (22) is connected to the bearing seat (6) as a whole. A fan (7) is provided on one side of the conveyor seat (4), and the fan (7) is connected to the conveyor seat (4) by screws. An exhaust pipe (19) is provided between the fan (7) and the rotating connector (25), and the two ends of the exhaust pipe (19) are connected to the fan (7) and the rotating connector (25) respectively. The exhaust pipe (19) is located inside the conveyor seat (4).

4. A return carrier for wire harness assembly and conveying according to claim 1, characterized in that: A drive chamber (5) is provided on one side of the conveyor seat (4), and the drive chamber (5) is fixedly connected to the conveyor seat (4). A second motor (12) is provided below the drive chamber (5), and the second motor (12) is connected to the drive chamber (5) by screws. A second gear (18) is provided inside the drive chamber (5), and the second gear (18) is connected to the output end of the second motor (12). The second gear (18) is rotatably connected to the drive chamber (5). The second gear (18) is located on one side of the first gear (17), and the second gear (18) meshes with the first gear (17).

5. A return carrier for wire harness assembly and conveying according to claim 1, characterized in that: The lower end of the bearing seat (6) is provided with six balls (15), and the six balls (15) are arranged in a circular and equidistant manner at the lower end of the bearing seat (6). The balls (15) are in contact with the upper end of the conveyor seat (4), and the balls (15) are in rolling connection with the conveyor seat (4) and the bearing seat (6).

6. A return carrier for wire harness assembly and conveying according to claim 1, characterized in that: A first motor (3) is provided on one side of the assembly table (1), and the first motor (3) is connected to the assembly table (1) by screws. A lead screw (10) is provided inside the mounting groove (2), and one end of the lead screw (10) is connected to the output end of the first motor (3). The lead screw (10) is threadedly connected to the slider (11), and the lead screw (10) is rotatably connected to the assembly table (1).

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