Photovoltaic junction box connector full-automatic production line

Abstract

The application discloses a full-automatic production line for photovoltaic junction box connectors, which comprises a conveying mechanism, a junction box assembling mechanism and a connector assembling mechanism; in the scheme, a long wire U-shaping mechanism and a short wire turning mechanism are added; the junction box assembling mechanism and the connector assembling mechanism are connected; the long wire and the short wire can be operated; and the assembling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of assembly equipment technology, and more specifically to a fully automated production line for photovoltaic junction box connectors. Background Technology

[0002] To improve assembly efficiency, the assembly of connecting cables generally adopts automated equipment. For example, the assembly of connecting cables involves the installation of wire harnesses, junction boxes, and connectors. Junction boxes and connectors are installed at the ends of the wire harness. In common assembly line processes, the junction box or connector at one end of the wire harness is usually assembled first, and then manually turned around before the connector or junction box at the other end is installed. The efficiency of manual turning around is low. In addition, the length of connecting cables is not fixed, and the machinery currently on the market can generally only adapt to the assembly of single long or short cables, which needs to be improved. Summary of the Invention

[0003] To address at least one of the aforementioned technical deficiencies, the present invention provides the following technical solution:

[0004] This application discloses a fully automated production line for photovoltaic junction box connectors, including a conveying mechanism, a junction box assembly mechanism, and a connector assembly mechanism. The junction box assembly mechanism sequentially includes a wire harness cutting and stripping mechanism, a terminal riveting mechanism, a solder paste application mechanism (I), a soldering mechanism (I), a connector insertion mechanism, and a nut tightening mechanism. The connector assembly mechanism sequentially includes a stripping mechanism, a box riveting mechanism, a solder paste application mechanism (II), a soldering mechanism (II), an upper pressure block mechanism, an ultrasonic welding mechanism, a cooling mechanism, and a wire harness inspection mechanism. The conveying mechanism includes a displacement mechanism. A clamping mechanism is provided at the moving end of the displacement mechanism. A long wire U-shaped mechanism is provided between the wire harness cutting and stripping mechanism and the riveting terminal mechanism. A short wire turning mechanism is provided between the screw-tightening mechanism and the stripping mechanism. The conveying mechanism passes through the wire harness cutting and stripping mechanism, the riveting terminal mechanism, the solder paste application mechanism, the soldering mechanism, the connector insertion mechanism, the screw-tightening mechanism, the stripping mechanism, the housing riveting mechanism, the solder paste application mechanism, the soldering mechanism, the upper pressure block mechanism, the ultrasonic welding mechanism, the cooling mechanism, and the wire harness detection mechanism.

[0005] The long-line U-shaped mechanism includes a first gripping mechanism and a rotating mechanism. The first gripping mechanism is provided at the output end of the rotating mechanism. The rotating mechanism moves the first gripping mechanism to clamp the wire harness at the wire harness cutting and stripping mechanism. The rotating mechanism drives the first gripping mechanism after clamping the wire harness to rotate to a predetermined position. One clamping mechanism on the conveying mechanism clamps a pair of wire harness ends at the first gripping mechanism, and another clamping mechanism clamps a pair of wire harness tail ends at the wire harness cutting and stripping mechanism. Then, it is conveyed to the next corresponding mechanism.

[0006] The short wire turning mechanism includes a drive mechanism, a swing arm, a second clamping mechanism, a first lifting mechanism, and a wire wheel conveying mechanism. The output end of the drive mechanism is provided with a swing arm, and the second clamping mechanism is provided on the swing arm. The drive mechanism rotates the swing arm to move the second clamping mechanism from the first station to the second station to turn the wire harness.

[0007] A lifting mechanism is provided below the second workstation, and a guide wheel conveying mechanism is provided at the moving end of the lifting mechanism. The guide wheel conveying mechanism includes a shifting mechanism four, a guide wheel, and a drive assembly. Two guide wheels are rotatably connected to the moving end of the shifting mechanism four, and the shifting mechanism four moves the guide wheels towards or away from each other. The drive assembly is connected to the guide wheel to drive it to rotate. The lifting mechanism one moves so that the wire harness held by the clamping mechanism two is between the two guide wheels. The shifting mechanism four moves the guide wheels towards each other to clamp the wire harness. The drive assembly drives the guide wheel to rotate so that the wire harness clamped in the middle moves. Then, the corresponding clamping mechanism one in the conveying mechanism clamps the wire harness and conveys it to the next corresponding mechanism.

[0008] This solution adds a long-line U-shaped mechanism and a short-line turning mechanism, and connects the junction box assembly mechanism and the connector assembly mechanism to complete the connection. It can operate on both long and short lines, improving assembly efficiency.

[0009] When assembling junction boxes and connectors for short wires, the short wires output from the stripping and cutting mechanism do not need to pass through the long wire U-shaped mechanism. Instead, the short wires are conveyed by a conveyor mechanism and sequentially pass through a terminal riveting mechanism, a solder paste application mechanism, a soldering mechanism, a connector insertion mechanism, and a screw tightening mechanism to perform corresponding actions, thereby completing the junction box assembly at the end of the short wire. The short wire turning mechanism then turns the short wire around, and the other end of the short wire is used for connector assembly. The short wires are conveyed by a conveyor mechanism and sequentially pass through a stripping mechanism, a box riveting mechanism, a second solder paste application mechanism, a second soldering mechanism, an upper pressure block mechanism, an ultrasonic welding mechanism, a cooling mechanism, and a wire harness detection mechanism to perform corresponding actions, thereby completing the connector assembly and corresponding testing at the turned end of the short wire.

[0010] When assembling junction boxes and connectors for long cables, the long cable output from the stripping and cutting mechanism is bent into a U-shape by the long cable U-forming mechanism. The U-shaped long cable is then conveyed by the conveying mechanism and passes through the riveting terminal mechanism, solder paste application mechanism one, soldering mechanism one, connector insertion mechanism, and screw tightening mechanism to complete the junction box assembly at one end of the long cable. There is no need to turn it around by the short cable turning mechanism. The long cable is then conveyed by the conveying mechanism and continues to pass through the stripping mechanism, box riveting mechanism, solder paste application mechanism two, soldering mechanism two, upper pressure block mechanism, ultrasonic welding mechanism, cooling mechanism, and wire harness detection mechanism to complete the connector assembly and corresponding detection at the other end of the long cable.

[0011] Furthermore, the rotating structure includes a first motor and a first connector. The first gripping mechanism is connected to the output shaft of the first motor through the first connector to make the first gripping mechanism rotate. In use, the first motor rotates the first gripping mechanism to the output position of the stripping and cutting mechanism, and the first gripping mechanism clamps the end of the wire. The first motor rotates the first gripping mechanism after clamping the wire to a predetermined position to initially complete the U-shape. The conveying mechanism clamps the end of the wire at the first gripping mechanism. The stripping and cutting mechanism continues to output the wire to a predetermined length and then cuts it. The conveying mechanism clamps the cut end of the wire. At this time, the long wire is in a complete U-shape. Then, the conveying mechanism moves the U-shaped wire to the next mechanism.

[0012] Furthermore, it also includes a first column, on which the first motor is mounted, and the addition of the first column facilitates the installation of the first motor.

[0013] Furthermore, the drive assembly includes a transmission mechanism and a second drive motor. The second drive motor is connected to the corresponding guide wheel through the transmission mechanism to drive the guide wheel to rotate. The transmission mechanism can be a belt drive, a gear drive, etc., with a belt drive type being preferred.

[0014] Furthermore, a base is provided at the moving end of the lifting mechanism one, and a shifting mechanism four and a drive motor two are provided on the base. Adding a base facilitates the installation of the shifting mechanism four, the drive motor two, etc.

[0015] Furthermore, the seat includes a first carrier plate and a second carrier plate. The first carrier plate, which is located at the bottom, is fixed to the moving end of the first lifting mechanism. A shifting mechanism is provided on the first carrier plate, and the second carrier plate is provided on the shifting mechanism. A second drive motor is provided on the second carrier plate on one side of the shifting mechanism, which simplifies the structure of the seat and facilitates the installation of the second drive motor, etc.

[0016] Furthermore, a second frame is installed below the second workstation, and a lifting mechanism is installed on the second frame. The lifting mechanism moves the guide wheel conveyor along the longitudinal direction, and the addition of the second frame facilitates the installation of the lifting mechanism.

[0017] Furthermore, the driving mechanism includes a drive motor and a reduction mechanism. The output end of the drive motor is connected to the input end of the reduction mechanism, and the output end of the reduction mechanism is connected to the swing arm.

[0018] Furthermore, the system includes a frame, on which a drive mechanism is arranged longitudinally. At the output end of the drive mechanism, a horizontally fixed swing arm is provided, and a clamping mechanism is arranged longitudinally on the swing arm. The addition of the frame facilitates the installation of the drive mechanism, etc.

[0019] Furthermore, the upper pressure block mechanism includes a second shifting mechanism, a second lifting mechanism, a third clamping mechanism, and a vibrating feeding mechanism. The second lifting mechanism is located at the moving end of the second shifting mechanism, and the third clamping mechanism is located at the moving end of the second lifting mechanism. The second shifting mechanism and the second lifting mechanism cooperate to allow the third clamping mechanism to clamp the pressure block output by the vibrating feeding mechanism and move it to a predetermined position on the conveying mechanism. The second shifting mechanism and the second lifting mechanism cooperate with the third clamping mechanism to move the pressure block at the vibrating feeding mechanism to the connection point between the connector and the wire, which facilitates subsequent soldering and fixation, simplifies the upper pressure block mechanism, helps reduce costs, and facilitates installation.

[0020] Furthermore, the vibratory feeding mechanism includes a vibratory feeding plate, a material box, a telescopic mechanism, and a pusher block. A channel is provided inside the material box, and the output end of the vibratory feeding plate is connected to the opening of the channel. A telescopic mechanism is provided on one side of the material box, and a pusher block is provided at the moving end of the telescopic mechanism. An inlet and an outlet are respectively provided on opposite side walls of the channel. The telescopic mechanism moves the pusher block into the inlet to push the pressure block in the channel out of the outlet. The shifting mechanism two and the lifting mechanism two cooperate with the moving clamping mechanism three to clamp the pressure block at the outlet. The telescopic mechanism moves the pusher block to push the pressure block in the channel inside the material box, thereby realizing material distribution and facilitating the clamping of the subsequent clamping mechanism three, thus improving operational stability.

[0021] Furthermore, it also includes a laser marking inspection mechanism, a terminal inspection mechanism, a soldering inspection mechanism, a nut gap inspection mechanism, a wire stripping inspection mechanism, and a finished product removal mechanism. The terminal inspection mechanism is located between the terminal riveting mechanism and the solder paste application mechanism; the soldering inspection mechanism is located between the soldering mechanism and the connector insertion mechanism; the nut gap inspection mechanism is located between the nut tightening mechanism and the short wire turning mechanism; the wire stripping inspection mechanism is located between the housing riveting mechanism and the stripping mechanism; and the laser marking inspection mechanism is located between the wire harness inspection mechanism and the finished product removal mechanism, with the finished product removal mechanism located behind the wire harness inspection mechanism. The conveying mechanism passes through the terminal inspection mechanism, the soldering inspection mechanism, the nut gap inspection mechanism, the wire stripping inspection mechanism, the laser marking inspection mechanism, and the finished product removal mechanism. By adding various inspection mechanisms, when a defective product is detected, an alarm is triggered in a timely manner to facilitate timely adjustments by the staff, which helps to improve the yield rate.

[0022] Furthermore, it also includes a support base, and the shifting mechanism is a lead screw type located below the support base. A clamping mechanism at the moving end of the shifting mechanism is located on the side of the support base. The shifting mechanism reciprocates to move the clamping mechanism to clamp and move the wire harness on the support base to the mechanism for the next action. The lead screw shifting helps to improve the shifting accuracy.

[0023] Furthermore, the wire stripping detection mechanism includes a shifting mechanism three, a clamping mechanism four, and a photoelectric sensor. The clamping mechanism four is located at the moving end of the shifting mechanism three, and the photoelectric sensor is located on one side of the shifting mechanism three. The shifting mechanism three moves the clamping mechanism four to the conveying mechanism to clamp the wire bundle and moves the clamping mechanism four so that the clamped wire bundle is within the sensing range of the photoelectric sensor. By moving the end of the stripped wire in cooperation with the clamping mechanism four, the shifting mechanism three moves the end of the stripped wire to the photoelectric sensor to detect whether the exposed wire bundle after stripping has undergone positional changes such as retraction, which helps to improve the yield rate.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. This invention designs a fully automated production line for photovoltaic junction box connectors. Based on the existing junction box assembly mechanism and connector assembly mechanism, a long line U-shaped mechanism and a short line turning mechanism are added. The completed production line can assemble connectors and junction boxes on both long and short lines, improving the level of automation and assembly efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the fully automated production line for photovoltaic junction box connectors in Example 1;

[0028] Figure 2 This is a structural schematic diagram of the long-line U-shaped mechanism and the conveying mechanism;

[0029] Figure 3 This is a schematic diagram of the installation structure of the first gripping mechanism and the rotating mechanism;

[0030] Figure 4 This is a schematic diagram of the short-line turning mechanism;

[0031] Figure 5 This is a schematic diagram of the wire stripping inspection mechanism;

[0032] Figure 6 This is a schematic diagram of the upper pressure block mechanism;

[0033] The attached figures are labeled as follows:

[0034] 1. Wire harness cutting and stripping mechanism; 2. Long wire U-shaped mechanism; 3. Terminal riveting mechanism; 4. Terminal inspection mechanism; 5. Solder paste application mechanism one; 6. Soldering mechanism one; 7. Soldering inspection mechanism; 8. Connector insertion mechanism; 9. Nut tightening mechanism; 10. Nut gap inspection mechanism; 11. Short wire turning mechanism; 12. Stripping mechanism; 13. Wire stripping inspection mechanism; 14. Box riveting mechanism; 15. Solder paste application mechanism two; 16. Soldering mechanism two; 17. Upper pressure block mechanism; 18. Ultrasonic welding mechanism; 19. Cooling mechanism; 20. Wire harness inspection mechanism; 21. Laser marking inspection mechanism; 22. Finished product removal mechanism; 24. Conveying mechanism; 25. Wire harness; 110. Reduction mechanism; 111. Drive motor one; 112. Frame one; 113. Swing arm; 114. Clamping mechanism two; 115. Lifting mechanism one; 116. Frame two; 117. Carrier plate one; 118. Guide wheel; 119. Transmission mechanism; 120. Carrier plate two; 121. Drive motor two; 122. Shifting mechanism four; 123. Claw end; 132. Shifting mechanism three; 133. Clamping mechanism four; 134. Photoelectric sensor; 172. Shifting mechanism two; 173. Lifting mechanism two; 174. Clamping mechanism three; 175. Material box; 176. Telescopic mechanism; 177. Push block; 178. Vibrating feeding plate; 202. First motor; 203. First connecting piece; 204. First gripping mechanism; 241. Displacement mechanism; 242. Mounting frame; 243. Clamping mechanism one; 244. Support base. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] like Figure 1 As shown, the fully automated photovoltaic junction box connector production line in this example includes a conveying mechanism 24, a junction box assembly mechanism, and a connector assembly mechanism.

[0038] The junction box assembly mechanism includes, in sequence, a wire harness cutting and stripping mechanism 1, a terminal riveting mechanism 3, a terminal detection mechanism 4, a solder paste application mechanism 1 5, a soldering mechanism 1 6, a solder detection mechanism 7, a connector insertion mechanism 8, a nut tightening mechanism 9, and a nut gap detection mechanism 10. The connector assembly mechanism includes, in sequence, a stripping mechanism 12, a wire stripping detection mechanism 13, a box riveting mechanism 14, a solder paste application mechanism 2 15, a soldering mechanism 2 16, an upper pressure block mechanism 17, an ultrasonic welding mechanism 18, a cooling mechanism 19, a wire harness detection mechanism 20, a laser marking detection mechanism 21, and a finished product removal mechanism 22.

[0039] This example adds a long-term U-shaped mechanism and a short-term reversal mechanism, such as... Figure 1As shown, the conveying mechanism 24 extends in a straight line. On the same side of the conveying mechanism 24, along the extension direction of the conveying mechanism, the following are installed sequentially: wire harness cutting and stripping mechanism 1, long wire U-shaped mechanism 2, terminal riveting mechanism 3, terminal detection mechanism 4, solder paste application mechanism 1 5, soldering mechanism 1 6, soldering detection mechanism 7, connector insertion mechanism 8, nut tightening mechanism 9, nut gap detection mechanism 10, short wire turning mechanism 11, stripping mechanism 12, wire stripping detection mechanism 13, box riveting mechanism 14, solder paste application mechanism 2 15, soldering mechanism 2 16, upper pressure block mechanism 17, ultrasonic welding mechanism 18, cooling mechanism 19, wire harness detection mechanism 20, laser marking detection mechanism 21, and finished product removal mechanism 22. The wire harness cutting and stripping mechanism conveys the wire harness 25 to the conveying mechanism, and the conveying mechanism conveys the wire harness sequentially to each mechanism, so that the corresponding mechanism performs a predetermined action on the wire harness at the conveying mechanism.

[0040] In this example, the conveying mechanism 24 includes a displacement mechanism 241 and a clamping mechanism 243, such as Figure 1 , Figure 2 As shown, a support base 244 is added, and the displacement mechanism is a lead screw type. The displacement mechanism is located below the support base and both extend in the same direction. The clamping mechanism 243 at the moving end of the displacement mechanism is located on the side of the support base 244. Multiple nut seats are installed on the lead screw of the displacement mechanism 241, and mounting brackets 242, such as plates, are fixed on the nut seats. The clamping mechanisms 243, such as cylinder grippers, are fixed longitudinally at both ends of the mounting brackets 242. The claw ends of the clamping mechanisms 243 face upward. During conveying, the displacement mechanism reciprocates to move the clamping mechanisms 243. For example, the displacement mechanism moves the clamping mechanisms 243 to the previous action mechanism, such as the riveting terminal mechanism, so that the clamping mechanism 243 clamps the end of the wire harness located on the side of the support base. Then it moves to the next action mechanism, such as the terminal detection mechanism. The support base supports the wire harness, and the displacement mechanism cooperates with the clamping mechanism 243 to clamp and move it.

[0041] In this example, the long-line U-shaped mechanism 2 includes a first gripping mechanism 204 and a rotating mechanism, such as... Figure 1 , Figure 2 , Figure 3As shown, a first column is fixed to the side of the conveying mechanism 24. A rotating mechanism is installed on the first column, including a first motor 202 and a first connecting member 203. The first connecting member 203 is a common swing arm, etc. The first motor 202 is mounted longitudinally on the first column, and the first connecting member 203 is horizontally fixed at the output end of the first motor 202. A first gripping mechanism 204 is fixed longitudinally on the first connecting member 203. The first gripping mechanism is a cylinder gripper, with the claw end of the first gripping mechanism facing downward. The first motor drives the first connecting member to rotate, synchronously causing the first gripper to rotate. The structure rotates horizontally. In use, the first motor rotates the first gripping mechanism to the output position of the stripping and cutting mechanism. The first gripping mechanism clamps the end of the wire (i.e., the beginning end). The first motor rotates (e.g., rotates horizontally 180°) to move the first gripping mechanism after clamping the wire to a predetermined position to initially complete the U-shape. The clamping mechanism in the conveying mechanism clamps the end of the wire at the first gripping mechanism. The stripping and cutting mechanism continues to output the wire to a predetermined length and then cuts it. Another clamping mechanism in the conveying mechanism clamps the cut end of the wire (i.e., the end). At this time, the long wire forms a complete U-shape, such as... Figure 1 , Figure 2 As shown, the U-shaped wire is then conveyed to the riveting terminal mechanism by the conveying mechanism. After being conveyed to the position, the clamping mechanism holding the wire releases its grip and returns to the long wire U-shaped mechanism.

[0042] In this example, the short-line turning mechanism 11 includes a drive mechanism, a swing arm 113, a second clamping mechanism 114, a first lifting mechanism 115, and a guide wheel conveying mechanism, such as Figure 4 As shown, a frame 112 is fixed on the side of the conveying mechanism. The frame is approximately L-shaped. A drive mechanism is installed longitudinally at the horizontal end of the frame 112. A swing arm 113 is installed at the output end of the drive mechanism. A clamping mechanism 114 is installed on the swing arm 113. The drive mechanism rotates the swing arm to move the clamping mechanism 114 from the first station to the second station for wire harness reversal.

[0043] The drive mechanism consists of a common drive motor 111 and a reduction mechanism 110. The drive motor is a servo motor, and the reduction mechanism can be a common model available on the market. The output end of the drive motor 111 is connected to the input end of the reduction mechanism 110. The output end of the reduction mechanism is fixed to the end of the swing arm 113, which is horizontally placed below the horizontal end of the frame 112. A clamping mechanism 114, such as a cylinder gripper, is installed longitudinally on the swing arm 113. Figure 4 In the state shown, the position of clamping mechanism 2 is the second work station. The drive mechanism rotates the swing arm horizontally by 180° to move clamping mechanism 2 to the first work station. The conveying mechanism moves the wire harness to the first work station. The clamping mechanism 2 in the first work station clamps the wire harness 25. The drive mechanism rotates the swing arm 180° to move the wire harness clamped by clamping mechanism 2 to the second work station, and the wire harness completes the turnaround.

[0044] A frame 116 is installed below the second workstation, such as a longitudinally arranged plate. A lifting mechanism 115 is installed on the frame 116. A guide wheel conveying mechanism is installed at the moving end of the lifting mechanism 115, so that the lifting mechanism can move the guide wheel conveying mechanism up or down along the longitudinal direction. The lifting mechanism is like a common slide table cylinder type.

[0045] The wire guide wheel conveying mechanism includes a shifting mechanism 122, wire guide wheels 118, and a drive assembly. The shifting mechanism 122 uses a cylinder gripper. The two wire guide wheels 118 are rotatably connected to the two moving claw ends of the cylinder gripper. For rotatable connection structures, such as those formed by shafts and bearings, the two claw ends of the shifting mechanism 122 move towards each other or away from each other, correspondingly causing the two wire guide wheels to move towards each other to clamp the wire harness, or to move away from each other to facilitate the wire harness entering between the two wire guide wheels. The wire guide wheels can be cylindrical, U-shaped, or V-shaped, etc., and can be freely selected.

[0046] The drive assembly is connected to the guide wheel to drive it to rotate. The rotation of the two guide wheels moves the wire harness sandwiched in the middle forward. The drive assembly includes a transmission mechanism 119 and a second drive motor 121. The second drive motor 121 is connected to the corresponding guide wheel 118 through the transmission mechanism 119 to drive the guide wheel to rotate. The transmission mechanism 119 can be a pulley, belt, sprocket, chain, or gear drive. In this example, a pulley type transmission mechanism is selected. Pulleys are installed at the output end of the second drive motor and on the shaft of the guide wheel and connected by belts. The drive motor drives the guide wheels one-to-one.

[0047] To facilitate the installation of the drive motor 2, the shifting mechanism, etc., in this example, a base is installed at the moving end of the lifting mechanism 115. The shifting mechanism 4 122 and the drive motor 2 121 are installed on the base. Specifically, the base includes a carrier plate 117 and a carrier plate 2 120. The carrier plate 117 at the bottom is fixed to the moving end of the lifting mechanism 115. The shifting mechanism 4 122 is fixed on the carrier plate 117 and the carrier plate 2 120 is fixed on the shifting mechanism 4 122. The drive motor 2 121 is installed on the carrier plate 2 on one side of the shifting mechanism 4.

[0048] In use, if the drive motor rotates the swing arm to position the clamping mechanism at the second position, the lifting mechanism moves the guide wheel conveying mechanism upward, so that the wire harness clamped by the clamping mechanism is between the two guide wheels. The shifting mechanism moves the guide wheels in opposite directions to clamp the wire harness. The drive motor, in conjunction with the transmission mechanism, drives the corresponding guide wheel to rotate. The rotation of the two guide wheels moves the wire harness 25 clamped in the middle forward to the predetermined position. The clamping mechanism in the conveying mechanism clamps the wire harness and sends it to the next mechanism. After the clamping mechanism clamps the wire harness, the two guide wheels move in opposite directions to release the wire harness from the clamped state.

[0049] When assembling junction boxes and connectors for short wires, the shorter wire harness output from the wire harness stripping and cutting mechanism 1, i.e., the short wire, does not need to pass through the long wire U-shaped mechanism. The short wire is conveyed by the conveying mechanism 24 and sequentially passes through the riveting terminal mechanism 3, terminal detection mechanism 4, solder paste application mechanism 5, soldering mechanism 6, solder detection mechanism 7, connector insertion mechanism 8, nut tightening mechanism 9, and nut gap detection mechanism 10 to perform corresponding actions, thereby completing the junction box assembly at the end of the short wire. The short wire turning mechanism 11 then... The short wire is turned around, and the connector is assembled at the other end of the short wire. The short wire is transported by the conveying mechanism and passes through the stripping mechanism 12, the wire stripping detection mechanism 13, the housing riveting mechanism 14, the solder paste application mechanism 15, the soldering mechanism 16, the pressing mechanism 17, the ultrasonic welding mechanism 18, the cooling mechanism 19, the wire harness detection mechanism 20, the laser marking detection mechanism 21, and the finished product removal mechanism 22 to perform corresponding actions, so as to complete the connector assembly and corresponding inspection of the short wire end after the turn.

[0050] When assembling junction boxes and connectors for long wires, the long wires output from the wire harness stripping and cutting mechanism 1 are bent into a U-shape by the long wire U-shaped bending mechanism 2. The U-shaped long wire is then conveyed by the conveying mechanism 24 and sequentially passes through the riveting terminal mechanism 3, terminal detection mechanism 4, solder paste application mechanism 5, soldering mechanism 6, soldering detection mechanism 7, connector insertion mechanism 8, nut tightening mechanism 9, and nut gap detection mechanism 10 to complete the junction box assembly at one end of the long wire. There is no need to turn it around by the short wire turning mechanism. The long wire is then conveyed by the conveying mechanism to continue sequentially passing through the stripping mechanism 12, wire stripping detection mechanism 13, box riveting mechanism 14, solder paste application mechanism 25, soldering mechanism 26, upper pressure block mechanism 17, ultrasonic welding mechanism 18, cooling mechanism 19, wire harness detection mechanism 20, laser marking detection mechanism 21, and finished product removal mechanism 22 to complete the connector assembly and corresponding detection at the other end of the long wire.

[0051] For the riveting terminal mechanism, terminal detection mechanism, solder paste application mechanism 1, soldering mechanism 1, connector insertion mechanism, and nut tightening mechanism, please refer to the patent document with authorization announcement number CN107756050B. Details can be found in the cable cutting mechanism (corresponding to this wire harness cutting and stripping mechanism), translation mechanism (corresponding to this conveying mechanism), riveting mechanism (corresponding to this riveting terminal mechanism), nut tightening mechanism (corresponding to this nut tightening mechanism), terminal detection mechanism, and soldering mechanism. The solder paste application mechanism can be purchased directly from the market. Alternatively, other mechanisms with similar structures and functions can also be purchased from the market. Solder detection and nut gap detection are performed using a camera and can be purchased directly from the market.

[0052] For the wire stripping mechanism, box riveting mechanism, and laser marking inspection mechanism, please refer to the patent document with publication number CN111697408A. Details include the dual-station wire stripping mechanism (one station can be omitted as the wire stripping mechanism), the riveting device (corresponding to the box riveting mechanism), and the ultrasonic welding mechanism, which mainly welds and fixes the pressure block to the junction box. These can be purchased directly from the market. During installation, the conveyor mechanism moves the wire harness to the welding position, and the ultrasonic welding mechanism welds and fixes it. The cooling mechanism is mainly used for cooling, such as air cooling or water cooling. The conveyor mechanism moves the wire harness so that the corresponding position passes through the air-cooled or water-cooled area. These can also be purchased directly from the market. The wire harness inspection mechanism can use a camera to check whether the junction box and connector are installed correctly, and can also perform electrical testing, such as electrical connection testing on the assembled wire harness. These can also be purchased directly from the market. The laser marking inspection mechanism is similar to the marking device in the patent document with publication number CN111697408A, with an additional camera inspection mechanism added to the side assembly. The finished product removal mechanism is like a robotic arm, which clamps and unloads the material.

[0053] The solder paste application mechanism 1 and the solder paste application mechanism 2 have the same structure, as do the soldering mechanism 1 and the soldering mechanism 2.

[0054] For the upper pressure block mechanism and the wire stripping detection mechanism, they can be purchased from the market, and the following structure is preferred:

[0055] like Figure 6 As shown, the upper pressing block mechanism 17 includes a second shifting mechanism 172, a second lifting mechanism 173, a third clamping mechanism 174, and a vibrating feeding mechanism. A corresponding bracket is fixed on the side of the conveying mechanism. The second shifting mechanism 172, such as a lead screw type, is installed on the bracket. The second lifting mechanism 173, such as a telescopic cylinder, is installed longitudinally at the moving end of the second shifting mechanism 172. The third clamping mechanism 174, such as a cylinder gripper, is installed at the moving end of the second lifting mechanism 173. The vibratory feeding mechanism includes a vibratory feeding plate 178, a material box 175, a telescopic mechanism 176, and a pusher block 177. A channel is formed inside the material box 175. The output end of the vibratory feeding plate 178 is connected to the channel opening at the tail end of the material box 175. The telescopic mechanism 176, such as a telescopic cylinder, is radially installed on one side of the head end of the material box 175. The pusher block 177 is fixed at the moving end of the telescopic mechanism. An inlet and an outlet are formed at opposite positions on the left and right side walls at the head end of the channel, respectively. The inlet corresponds to the pusher block. The telescopic mechanism moves the pusher block to enter from the inlet to push the pressure block in the channel out from the outlet, thus completing the material distribution. Then, the second shifting mechanism moves the second lifting mechanism to above the outlet, the second lifting mechanism moves the third clamping mechanism to clamp the pressure block at the outlet, the second lifting mechanism moves upward, the second shifting mechanism moves the third clamping mechanism to the predetermined position of the conveying mechanism, after the conveying mechanism moves the end of the wire harness with the box body riveted to the predetermined position, the second lifting mechanism moves the third clamping mechanism to make the pressure block fall into the predetermined position, and then it is sent to the ultrasonic welding mechanism to weld and fix the pressure block.

[0056] like Figure 5 As shown, the wire stripping detection mechanism 13 includes a shifting mechanism 132, a clamping mechanism 133, and a photoelectric sensor 134. For example, a corresponding bracket is installed on the side of the conveying mechanism 24, and the shifting mechanism 132 is installed on the bracket, such as a lead screw shifting type. The clamping mechanism 133 is installed at the moving end of the shifting mechanism 132, such as a cylinder gripper. The photoelectric sensor 134 is located on the bracket on one side of the shifting mechanism 132. After the conveying mechanism moves the wire harness to the predetermined position, the shifting mechanism 132 moves the clamping mechanism 133 to the predetermined position to clamp the wire harness at the conveying mechanism. The shifting mechanism 132 moves the wire harness to the photoelectric sensor, and the photoelectric sensor detects whether the exposed wire harness after stripping has changed position, such as by reversing. If so, a warning signal or alarm can be issued.

[0057] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fully automated production line for photovoltaic junction box connectors, comprising a conveying mechanism (24), a junction box assembly mechanism, and a connector assembly mechanism, wherein the junction box assembly mechanism comprises, in sequence, a wire harness cutting and stripping mechanism (1), a terminal riveting mechanism (3), a solder paste application mechanism (5), a soldering mechanism (6), a connector insertion mechanism (8), and a nut tightening mechanism (9); wherein the connector assembly mechanism comprises, in sequence, a stripping mechanism (12), a box riveting mechanism (14), a solder paste application mechanism (25), a soldering mechanism (26), an upper pressure block mechanism (17), an ultrasonic welding mechanism (18), a cooling mechanism (19), and a wire harness detection mechanism (20); wherein the conveying mechanism (24) comprises a displacement mechanism (241) and a clamping mechanism (243), wherein the clamping mechanism (243) is provided at the moving end of the displacement mechanism (241); characterized in that, A long wire U-shaped mechanism (2) is provided between the wire harness cutting and stripping mechanism (1) and the riveting terminal mechanism (3). A short wire turning mechanism (11) is provided between the screw-tightening mechanism (9) and the stripping mechanism (12). The conveying mechanism (24) passes through the wire harness cutting and stripping mechanism (1), the riveting terminal mechanism (3), the solder paste application mechanism (5), the soldering mechanism (6), the connector insertion mechanism (8), the screw-tightening mechanism (9), the stripping mechanism (12), the housing riveting mechanism (14), the solder paste application mechanism (25), the soldering mechanism (26), the upper pressure block mechanism (17), the ultrasonic welding mechanism (18), the cooling mechanism (19), and the wire harness detection mechanism (20). The long-line U-shaped mechanism (2) includes a first gripping mechanism (204) and a rotating mechanism. The first gripping mechanism (204) is provided at the output end of the rotating mechanism. The rotating mechanism moves the first gripping mechanism (204) to clamp the wire harness at the wire harness cutting and stripping mechanism. The rotating mechanism drives the first gripping mechanism after clamping the wire harness to rotate to a predetermined position. One clamping mechanism on the conveying mechanism clamps the ends of the wire harness at the first gripping mechanism, and another clamping mechanism clamps the tail ends of the wire harness at the wire harness cutting and stripping mechanism. Then it is conveyed to the next corresponding mechanism. The short wire turning mechanism (11) includes a drive mechanism, a swing arm (113), a second clamping mechanism (114), a first lifting mechanism (115), and a wire wheel conveying mechanism. The swing arm (113) is provided at the output end of the drive mechanism, and the second clamping mechanism (115) is provided on the swing arm. The drive mechanism rotates the swing arm to move the second clamping mechanism from the first station to the second station to turn the wire harness. A lifting mechanism (115) is provided below the second workstation, and a guide wheel conveying mechanism is provided at the moving end of the lifting mechanism. The guide wheel conveying mechanism includes a shifting mechanism (122), a guide wheel (118), and a drive assembly. The two guide wheels are rotatably connected to the moving end of the shifting mechanism and the shifting mechanism moves the guide wheels towards or away from each other. The drive assembly is connected to the guide wheel to drive it to rotate. The lifting mechanism moves so that the wire harness held by the clamping mechanism is between the two guide wheels. The shifting mechanism moves the guide wheels towards each other to clamp the wire harness. The drive assembly drives the guide wheel to rotate so that the wire harness clamped in the middle moves. Then, the corresponding clamping mechanism in the conveying mechanism clamps the wire harness and conveys it to the next corresponding mechanism.

2. The fully automated production line for photovoltaic junction box connectors as described in claim 1, characterized in that: The rotating mechanism includes a first motor (202) and a first connector (203). The first gripping mechanism is connected to the output shaft of the first motor through the first connector to make the first gripping mechanism rotate.

3. The fully automated production line for photovoltaic junction box connectors as described in claim 2, characterized in that: It also includes a first column, on which the first motor (202) is mounted.

4. The fully automated production line for photovoltaic junction box connectors as described in claim 1, characterized in that: The drive assembly includes a transmission mechanism (119) and a second drive motor (121). The second drive motor (121) is connected to the corresponding guide wheel (118) through the transmission mechanism (119) to drive the guide wheel to rotate.

5. The fully automated production line for photovoltaic junction box connectors as described in claim 4, characterized in that: A base is provided at the moving end of the lifting mechanism 1 (115), and a shifting mechanism 4 (122) and a drive motor 2 (121) are provided on the base.

6. The fully automated production line for photovoltaic junction box connectors as described in claim 5, characterized in that: The seat includes a first carrier plate (117) and a second carrier plate (120). The first carrier plate (117) located below is fixed to the moving end of the first lifting mechanism (115). A fourth shifting mechanism (122) is provided on the first carrier plate (117), and the second carrier plate (120) is provided on the fourth shifting mechanism (122). A second drive motor (121) is provided on the second carrier plate (120) on one side of the fourth shifting mechanism (122).

7. The fully automated production line for photovoltaic junction box connectors as described in claim 1, characterized in that: A second frame (116) is set below the second work station. A first lifting mechanism (115) is set on the second frame (116). The first lifting mechanism (115) moves the guide wheel conveyor mechanism longitudinally. Alternatively, the driving mechanism includes a drive motor (111) and a reduction mechanism (110), the output end of the drive motor (111) is connected to the input end of the reduction mechanism (110), and the output end of the reduction mechanism (110) is connected to the swing arm (113). Alternatively, it includes a frame (112), on which a driving mechanism is arranged longitudinally, and at the output end of the driving mechanism, a horizontally fixed swing arm (113) is provided, on which a clamping mechanism (2) is arranged longitudinally. Alternatively, the upper pressing block mechanism (17) includes a second shifting mechanism (172), a second lifting mechanism (173), a third clamping mechanism (174), and a vibrating feeding mechanism. The second shifting mechanism (172) is provided with a second lifting mechanism (173) at its moving end, and the third clamping mechanism (174) is provided with a third moving end. The second shifting mechanism and the second lifting mechanism cooperate to make the third clamping mechanism clamp the pressing block output by the vibrating feeding mechanism and transfer it to a predetermined position of the conveying mechanism.

8. The fully automated production line for photovoltaic junction box connectors as described in claim 7, characterized in that: The vibrating feeding mechanism includes a vibrating feeding plate (178), a material box (175), a telescopic mechanism (176), and a pusher (177). The material box (175) is provided with a channel and the output end of the vibrating feeding plate is connected to the opening of the channel. The telescopic mechanism (176) is provided on one side of the material box (175) and the pusher (177) is provided at the moving end of the telescopic mechanism (176). The channel is provided with an inlet and an outlet on opposite side walls. The telescopic mechanism (176) moves the pusher (177) into the channel from the inlet to push the pressure block in the channel out from the outlet. The pressure block at the outlet is clamped by the shifting mechanism two, the lifting mechanism two, and the moving clamping mechanism three.

9. The fully automated production line for photovoltaic junction box connectors as described in claim 1, characterized in that: It also includes a laser marking detection mechanism (21), a terminal detection mechanism (4), a soldering detection mechanism (7), a nut gap detection mechanism (10), a wire stripping detection mechanism (13), and a finished product removal mechanism (22). The terminal detection mechanism (4) is located between the riveting terminal mechanism (3) and the solder paste application mechanism (5). The soldering detection mechanism is located between the soldering mechanism and the connector insertion mechanism. The nut gap detection mechanism is located between the screw tightening mechanism and the short wire turning mechanism. The wire stripping detection mechanism is located between the box riveting mechanism and the stripping mechanism. The laser marking detection mechanism is located between the wire harness detection mechanism and the finished product removal mechanism, and the finished product removal mechanism is located behind the wire harness detection mechanism. The conveying mechanism passes through the terminal detection mechanism, the soldering detection mechanism, the nut gap detection mechanism, the wire stripping detection mechanism, the laser marking detection mechanism, and the finished product removal mechanism. Alternatively, it may also include a support base (244), a displacement mechanism that is a lead screw type and located below the support base, and a clamping mechanism (243) at the moving end of the displacement mechanism (241) located on the side of the support base, so as to reciprocate the clamping mechanism to clamp the wire harness on the support base and move it to the mechanism for the next action.

10. The fully automated production line for photovoltaic junction box connectors as described in claim 9, characterized in that: The wire stripping detection mechanism (13) includes a shifting mechanism three (132), a clamping mechanism four (133), and a photoelectric sensor (134). The clamping mechanism four is provided at the moving end of the shifting mechanism three, and the photoelectric sensor is located on one side of the shifting mechanism three. The shifting mechanism three moves the clamping mechanism four to the conveying mechanism to clamp the wire harness and moves the clamping mechanism four so that the clamped wire harness is within the sensing range of the photoelectric sensor.

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