Automatic assembling equipment for photovoltaic junction box

By introducing a correction mechanism into the automated assembly equipment for photovoltaic junction boxes, precise transportation of parts and multi-station assembly were achieved, solving the problem of inaccurate part assembly positions and improving product quality and production efficiency.

CN223935563UActive Publication Date: 2026-02-24MOBEN AUTOMATION (SUZHOU) CO LTD
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Patent Information

Application Number
CN202520045836.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-02-24
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Existing automated assembly equipment for photovoltaic junction boxes struggles to accurately correct the position and orientation of parts during high-speed material feeding, resulting in inaccurate part assembly positions and impacting product quality and production efficiency.

Method used

The system employs a correction mechanism, including a drive assembly, a stabilizing assembly, and a correction plate. It uses a motor to drive an arc-shaped rod and a slider to achieve precise material transport and flexible clamping, and works in conjunction with a multi-station robotic arm for efficient assembly.

Benefits of technology

It improves the accuracy of parts assembly, reduces misalignment and deviation, increases production efficiency, and ensures product quality and the continuity of the production process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of assembling equipment, and discloses photovoltaic junction box automatic assembling equipment which comprises a workbench, the top of the workbench is fixedly connected with a working mechanism, the outer wall of one side of the workbench is fixedly connected with a deviation rectifying mechanism, and the outer wall of the other side of the workbench is fixedly connected with a lifting feeder. The outer wall of the other side of the workbench is fixedly connected with a discharging conveying belt, the deviation rectifying mechanism comprises a connecting plate, the outer wall of the connecting plate is fixedly connected to the outer wall of the workbench, the outer wall of the other side of the connecting plate is fixedly connected with two supporting plates, and the outer wall of the other side of the connecting plate is fixedly connected with a partition plate. According to the automatic feeding device, accurate feeding of materials is achieved, so that the product assembly quality is improved, it is guaranteed that all parts meet the production standard, defective products caused by dislocation and deviation are reduced, the production efficiency is improved, material adjustment is avoided, time consumed by reworking is saved, and the assembly process continuity is maintained.
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Description

Technical Field

[0001] This utility model relates to the field of assembly equipment technology, and in particular to an automated assembly equipment for photovoltaic junction boxes. Background Technology

[0002] A photovoltaic (PV) junction box is a crucial component in a PV module system, connecting the cells to external circuits. It consists of a housing, terminals, diodes, and other parts, and is mounted on the back of the PV module. Its role is significant: it provides electrical connection, safely transmitting the direct current generated by the PV cells; it is waterproof and dustproof, resisting external corrosion; and it uses bypass diodes to prevent hot spot effects, ensuring normal module operation. Currently, the PV industry is developing rapidly, and market demand for junction boxes is surging. Therefore, there is an urgent need for automated assembly equipment: on the one hand, it can significantly improve production efficiency, far exceeding the speed of manual assembly, to meet supply demands; on the other hand, it can precisely control the assembly process, reduce human error, ensure product quality, and reduce long-term costs.

[0003] Automated assembly equipment for photovoltaic junction boxes typically includes a parts feeding structure, such as a vibratory feeder, for sequentially feeding various parts of the junction box; an assembly robot, usually a multi-axis articulated robot, capable of precisely grasping and placing parts; a welding structure, such as a laser welding device, for high-quality welding between parts; and an inspection structure, including electrical performance and appearance inspection devices. Its working principle is as follows: first, the parts feeding structure transports the components to the assembly position in an orderly manner; the assembly robot precisely installs the parts into the corresponding positions in the junction box according to a preset program; the welding structure firmly welds the parts that need to be connected; and finally, the inspection structure performs quality inspection on the assembled junction box to determine whether it meets the standards.

[0004] In existing technologies, the positional accuracy control of component feeding methods (such as vibratory feeders) is limited, and it is difficult to perform real-time position and attitude correction for each component under high-speed feeding conditions. This makes it difficult for some equipment to correct the material during the feeding process, resulting in inaccurate component assembly positions, affecting the assembly quality of photovoltaic junction boxes, and leading to problems such as improper component installation and unstable connections. Furthermore, it reduces the overall production efficiency of the assembly equipment. Therefore, an automated assembly equipment for photovoltaic junction boxes is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automated assembly equipment for photovoltaic junction boxes, which aims to improve the problem that some existing equipment has difficulty in correcting material deviation during the feeding process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automated assembly equipment for photovoltaic junction boxes includes a workbench, a working mechanism fixedly connected to the top of the workbench, a correction mechanism fixedly connected to one outer wall of the workbench, a lifting feeder fixedly connected to the other outer wall of the workbench, and a discharge conveyor belt fixedly connected to the other outer wall of the workbench.

[0008] The correction mechanism includes a connecting plate, the outer wall of which is fixedly connected to the outer wall of the workbench. Two support plates are fixedly connected to the other outer wall of the connecting plate, and a partition is fixedly connected to the other outer wall of the connecting plate. A drive assembly is fixedly connected to the top of the partition, and two follower rods are fixedly connected to the top of the drive assembly. Two transmission plates are fixedly connected to both ends of the follower rods, and a correction plate is fixedly connected to the other side of the two transmission plates. A stabilizing assembly is fixedly connected to the top of the support plate.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a second motor, the bottom of which is fixedly connected to the top of the partition. A drive disk is fixedly connected to the drive end of the second motor. Two arc-shaped rods are rotatably connected to both ends of the drive disk. A slider is rotatably connected to the other end of each arc-shaped rod. The bottoms of two follower rods are fixedly connected to the tops of the two sliders.

[0011] As a further description of the above technical solution:

[0012] The stabilizing component includes two fixed piles, the bottoms of which are fixedly connected to the top of the support plate. A sliding rod is slidably connected to the inner wall of each fixed pile. Two fixed plates are fixedly connected to the top of the two support plates. A feeding conveyor belt is provided on the adjacent side of the two fixed plates.

[0013] As a further description of the above technical solution:

[0014] The working mechanism includes a motor, the bottom of which is fixedly connected to the top of the worktable. A turntable is fixedly connected to the drive end of the motor. A sliding ring is fixedly connected to the bottom of the turntable. Four four-jaw chucks are fixedly connected to the outer wall of the turntable. A loading robot arm 1 and a loading robot arm 2 are fixedly connected to the top of the worktable. A welder and an unloading robot arm are fixedly connected to the top of the worktable.

[0015] As a further description of the above technical solution:

[0016] One end of each of the two slide rods is fixedly connected to the outer wall of the correction plate, and the bottom of the correction plate is in contact with the top of the feeding conveyor belt;

[0017] As a further description of the above technical solution:

[0018] The outer walls of the two slide rods are slidably connected to the inner wall of the fixed plate, and the outer walls of the two transmission plates are slidably connected to the inner wall of the fixed plate;

[0019] As a further description of the above technical solution:

[0020] The top of the partition has two grooves, and the bottom of the slider is slidably connected to the top of the grooves;

[0021] As a further description of the above technical solution:

[0022] The top of the workbench is provided with an annular groove, and the bottom of the sliding ring is slidably connected inside the annular groove.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, motor two drives the drive disc to rotate, the drive disc pulls the arc-shaped rod, the arc-shaped rod pulls the slider to slide in the partition groove, the slider drives the follower rod to move, the follower rod drives the correction plate to move through the transmission plate, the slide rod slides on the fixed pile and the inner wall of the fixed plate, assisting the correction plate to move smoothly, and finally the correction plate flexibly clamps the junction box raw material on the feeding conveyor belt, driving the raw material to be transported accurately, realizing the accurate feeding of materials, preventing deviation, thereby improving the product assembly quality, ensuring that all parts fit together perfectly, conforming to production standards, reducing defects caused by misalignment and deviation, stabilizing product performance, and helping to improve production efficiency, avoid material adjustment and rework time, and maintain the continuity of the assembly process.

[0025] 2. In this utility model, motor one drives the turntable to rotate, while loading robot one grabs the material and places it on a four-jaw chuck for fixation. The turntable rotates to the loading robot two station, where loading robot two grabs the assembly parts and places them on the raw material. Then, the welding machine installs the assembly parts on the raw material. Finally, the turntable rotates to the unloading robot, where it grabs and places the parts on the unloading conveyor belt. This realizes the simultaneous operation of multiple stations to assemble photovoltaic junction boxes, improving assembly efficiency and enabling various assembly stages of photovoltaic junction boxes to be carried out in parallel. This allows for the assembly of more products to be completed within a unit of time, shortening the overall production cycle. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an automated assembly equipment for photovoltaic junction boxes proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the working mechanism of an automated assembly equipment for photovoltaic junction boxes proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the workbench of an automated assembly equipment for photovoltaic junction boxes proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the correction mechanism of an automated assembly equipment for photovoltaic junction boxes proposed in this utility model;

[0030] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Workbench; 2. Working mechanism; 201. Motor 1; 202. Turntable; 203. Four-jaw chuck; 204. Loading robot 1; 205. Loading robot 2; 206. Unloading robot; 207. Welder; 208. Sliding ring; 3. Correction mechanism; 301. Connecting plate; 302. Support plate; 303. Loading conveyor belt; 304. Partition plate; 305. Motor 2; 306. Drive plate; 307. Arc rod; 308. Slider; 309. Slide groove; 310. Follower rod; 311. Transmission plate; 312. Correction plate; 313. Fixing plate; 314. Fixing pile; 315. Sliding rod; 4. Lifting feeder; 5. Unloading conveyor belt. Detailed Implementation

[0033] 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, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 3 to 5 This utility model provides an embodiment of an automated photovoltaic junction box assembly device, comprising a workbench 1. The workbench 1 possesses good structural strength and stability, effectively resisting vibrations and impacts generated during equipment operation, and providing support and mounting points for subsequent mechanisms. A working mechanism 2 is fixedly connected to the top of the workbench 1, which is used for assembling the photovoltaic junction boxes. A correction mechanism 3 is fixedly connected to one outer wall of the workbench 1, which is used to prevent the raw materials from shifting during the feeding process. A lifting feeder 4 is fixedly connected to the other outer wall of the workbench 1, which is used for feeding the assembly parts of the junction boxes. A discharge conveyor belt 5 is fixedly connected to the other outer wall of the workbench 1, which is used to control the transportation of the finished photovoltaic junction boxes.

[0035] The correction mechanism 3 includes a connecting plate 301, the outer wall of which is fixedly connected to the outer wall of the workbench 1. The connecting plate 301 connects the entire correction mechanism 3 to the main body of the workbench 1. Two support plates 302 are fixedly connected to the other outer wall of the connecting plate 301, supporting the entire correction mechanism 3. A partition plate 304 is fixedly connected to the other outer wall of the connecting plate 301, providing a movable foundation for subsequent structures. A drive assembly is fixedly connected to the top of the partition plate 304, and two follower rods 310 are fixedly connected to the top of the drive assembly, transmitting the power from the drive assembly. Two transmission plates 311 are fixedly connected to both ends of the follower rods 310, further transmitting power to subsequent structures. A correction plate 312 is fixedly connected to the other side of the two transmission plates 311. The correction plate 312 flexibly clamps the material, enabling precise material transport and facilitating subsequent accurate loading. A stabilizing component is fixedly connected to the top of the support plate 302.

[0036] The drive assembly includes a second motor 305, the bottom of which is fixedly connected to the top of the partition 304. The second motor 305 provides power to the entire correction mechanism 3. A drive disk 306 is fixedly connected to the drive end of the second motor 305, and the operation of the second motor 305 drives the drive disk 306 to rotate. Two arc-shaped rods 307 are rotatably connected to both ends of the drive disk 306, and the arc-shaped rods 307 transmit the power of the second motor 305. A slider 308 is rotatably connected to the other end of the arc-shaped rods 307. Two grooves 309 are formed on the top of the partition 304, and the bottom of the slider 308 is slidably connected to the top of the grooves 309. The movement of the slider 308 on the grooves 309 drives the follower rod 310 to move. The bottoms of the two follower rods 310 are fixedly connected to the tops of the two sliders 308, so that the movement of the slider 308 can be stably transmitted to the follower rods 310.

[0037] The stabilizing assembly includes two fixed piles 314, the bottoms of which are fixedly connected to the top of the support plate 302. The fixed piles 314 support the entire stabilizing assembly. Sliding rods 315 are slidably connected to the inner walls of the fixed piles 314. One end of each sliding rod 315 is fixedly connected to the outer wall of the correction plate 312. The sliding of the sliding rods 315 within the fixed piles 314 ensures smooth movement of the correction plate 312. Two fixed plates 313 are fixedly connected to the top of the two support plates 302. The outer walls of the two sliding rods 315 are slidably connected to the inner walls of the fixed plates 313, and the outer walls of two transmission plates 311 are slidably connected to the inner walls of the fixed plates 313. The fixed plates 313 are used to install subsequent structures and provide sliding tracks for the movement of the transmission plates 311 and the sliding rods 315. A feeding conveyor belt 303 is provided on an adjacent side of the two fixed plates 313. The feeding conveyor belt 303 transports materials around the workbench 1, facilitating feeding and subsequent assembly operations. The bottom of the correction plate 312 contacts the top of the feeding conveyor belt 303, thereby enabling the correction plate 312 to correct the deviation of the junction box material.

[0038] Reference Figures 1 to 3 The working mechanism 2 includes a motor 201, the bottom of which is fixedly connected to the top of the workbench 1. The motor 201 drives the subsequent structure to rotate, facilitating simultaneous operation of multiple workstations. A turntable 202 is fixedly connected to the drive end of the motor 201, providing the rotational basis for the entire multi-station work platform. A sliding ring 208 is fixedly connected to the bottom of the turntable 202, serving as the rotational basis for the turntable 202. A circular groove is formed on the top of the workbench 1, and the bottom of the sliding ring 208 is slidably connected inside the circular groove. The rotation of the sliding ring 208 within the circular groove stabilizes the rotation of the entire turntable 202, ensuring stable rotation throughout the assembly process. Four four-jaw chucks 203 are fixedly connected to the outer wall of the turntable 202, used to clamp and fix materials to prevent material displacement during assembly.

[0039] A loading robot 204 is fixedly connected to the top of workbench 1. This robot grips the raw materials for the photovoltaic junction box and places them onto one of the four-jaw chucks 203 for subsequent assembly operations. A second loading robot 205 is also fixedly connected to the top of workbench 1. This robot grips the assembly parts for the junction box and places them in the corresponding positions on the raw materials. A welder 207 is fixedly connected to the top of workbench 1. This welder is used to precisely install the assembly parts onto the raw materials for the junction box. Finally, an unloading robot 206 is fixedly connected to the top of workbench 1. This unloading robot places the assembled products onto the unloading conveyor belt 5 for transport.

[0040] Working principle: After the equipment is started, motor 305 starts to operate, driving drive disc 306 to rotate. When drive disc 306 rotates, it pulls arc rod 307 connected to it. Arc rod 307 pulls slider 308. Sliding slider 308 slides in the groove 309 at the top of partition 304. The sliding of slider 308 drives follower rod 310 to move. Follower rod 310 transmits power to transmission plate 311. Transmission plate 311 further drives correction plate 312 to move accordingly. At the same time, slide rod 315 slides on the inner wall of fixed pile 314 and the inner wall of fixed plate 313, providing stable guidance for the movement of correction plate 312, allowing correction plate 312 to move smoothly. With the assistance of stabilizing components, correction plate 312 flexibly clamps the junction box raw material transported on feeding conveyor belt 303 to prevent the raw material from deviating, thereby achieving precise material transportation.

[0041] After the equipment is turned on, motor 201 starts running first, driving the connected turntable 202 to rotate. Because the sliding ring 208 at the bottom of the turntable 202 slides within the annular groove at the top of the worktable 1, this structural design stabilizes the rotation of the turntable 202, allowing it to rotate smoothly and continuously, providing a stable foundation for multi-station operations. While the turntable 202 rotates, the four-jaw chuck 203 firmly clamps the materials, preventing material displacement during assembly. Subsequently, the loading robot 204... The process involves the robot 205 grabbing the raw material for the photovoltaic junction box and precisely placing it onto one of the four-jaw chucks 203. Next, the loading robot 205 operates, grabbing the assembly parts of the junction box and placing them securely in their corresponding positions on the raw material. Then, the welding machine 207 starts, precisely installing the assembly parts onto the raw material. Once assembly is complete, the unloading robot 206 works to grab the assembled finished product and place it on the unloading conveyor belt 5, thus achieving automated assembly and transportation of the product and efficiently completing the photovoltaic junction box production process.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automated assembly equipment for photovoltaic junction boxes, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a working mechanism (2), one side of the outer wall of the workbench (1) is fixedly connected to a correction mechanism (3), the other side of the outer wall of the workbench (1) is fixedly connected to a lifting feeder (4), and the other side of the outer wall of the workbench (1) is fixedly connected to a discharge conveyor belt (5). The correction mechanism (3) includes a connecting plate (301), the outer wall of which is fixedly connected to the outer wall of the workbench (1), two support plates (302) are fixedly connected to the other outer wall of the connecting plate (301), a partition plate (304) is fixedly connected to the other outer wall of the connecting plate (301), a drive assembly is fixedly connected to the top of the partition plate (304), two follower rods (310) are fixedly connected to the top of the drive assembly, two transmission plates (311) are fixedly connected to the two ends of the follower rods (310), a correction plate (312) is fixedly connected to the other side of the two transmission plates (311), and a stabilizing assembly is fixedly connected to the top of the support plate (302).

2. The automated assembly equipment for photovoltaic junction boxes according to claim 1, characterized in that: The drive assembly includes a second motor (305), the bottom of which is fixedly connected to the top of the partition (304). The drive end of the second motor (305) is fixedly connected to a drive disk (306). Two arc-shaped rods (307) are rotatably connected to both ends of the drive disk (306). A slider (308) is rotatably connected to the other end of the arc-shaped rod (307). The bottoms of two follower rods (310) are fixedly connected to the tops of the two sliders (308).

3. The automated assembly equipment for photovoltaic junction boxes according to claim 2, characterized in that: The stabilizing component includes two fixed piles (314), the bottom of the two fixed piles (314) is fixedly connected to the top of the support plate (302), the inner wall of the fixed piles (314) is slidably connected to a slide rod (315), the top of the two support plates (302) is fixedly connected to two fixed plates (313), and a feeding conveyor belt (303) is provided on the adjacent side of the two fixed plates (313).

4. The automated assembly equipment for photovoltaic junction boxes according to claim 1, characterized in that: The working mechanism (2) includes a motor (201), the bottom of which is fixedly connected to the top of the workbench (1), a turntable (202) is fixedly connected to the drive end of the motor (201), a sliding ring (208) is fixedly connected to the bottom of the turntable (202), four four-jaw chucks (203) are fixedly connected to the outer wall of the turntable (202), a loading robot (204) is fixedly connected to the top of the workbench (1), a loading robot (205) is fixedly connected to the top of the workbench (1), a welder (207) is fixedly connected to the top of the workbench (1), and a unloading robot (206) is fixedly connected to the top of the workbench (1).

5. The automated assembly equipment for photovoltaic junction boxes according to claim 3, characterized in that: One end of each of the two slide bars (315) is fixedly connected to the outer wall of the correction plate (312), and the bottom of the correction plate (312) is in contact with the top of the feeding conveyor belt (303).

6. The automated assembly equipment for photovoltaic junction boxes according to claim 3, characterized in that: The outer walls of the two slide rods (315) are slidably connected to the inner wall of the fixed plate (313), and the outer walls of the two transmission plates (311) are slidably connected to the inner wall of the fixed plate (313).

7. The automated assembly equipment for photovoltaic junction boxes according to claim 2, characterized in that: The top of the partition (304) has two grooves (309), and the bottom of the slider (308) is slidably connected to the top of the grooves (309).

8. The automated assembly equipment for photovoltaic junction boxes according to claim 4, characterized in that: The top of the workbench (1) is provided with an annular groove, and the bottom of the sliding ring (208) is slidably connected to the inside of the annular groove.