Processing and assembling equipment for photovoltaic junction box

Abstract

The utility model discloses processing and assembling equipment for a photovoltaic junction box. The processing and assembling equipment comprises a pay-off rack, a cable U-forming device, a connector assembling machine, a junction box assembling machine and a U-shaped cable moving machine. According to the utility model, the cable U-punching device is arranged in front of the connector assembling machine and the junction box assembling machine, U-punching is carried out on the cable firstly, and then the U-shaped cable moving machine is used for feeding the U-shaped cable into each process of the connector assembling machine and the junction box assembling machine in sequence, so that a transposition process between the connector assembling machine and the junction box assembling machine is omitted, and the production efficiency is improved. The connection of the connector assembling machine and the junction box assembling machine is seamlessly realized, the full-automatic production of the photovoltaic junction box is further realized, and the photovoltaic junction box assembling machine has the advantages of high production efficiency, reliable assembling precision, low reject ratio and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, and in particular to processing and assembling equipment for a photovoltaic junction box. Background Art

[0002] The photovoltaic junction box is a connection device between the solar cell array composed of solar cell modules and the solar charging control device. Its main function is to connect and protect solar photovoltaic modules, connect the power generated by solar cells to external lines, and conduct the current generated by photovoltaic modules.

[0003] The photovoltaic junction box consists of three parts: connector, cable and junction box. During production, the two ends of the cable need to be assembled with connectors and junction boxes respectively. The assembly of cables and connectors requires several steps such as stripping, riveting terminals, resistance welding terminals, inserting connectors and tightening nuts; the assembly of cables and junction boxes requires several steps such as square punching, module welding, pressure block installation and ultrasonic welding.

[0004] Patent document 201820798877.3 (application date 2018.05.28) discloses a fully automatic wire harness processing and assembly equipment, which is actually a dedicated assembly equipment for cables and connectors; Patent document 202010482923.0 (application date 2020.06.01) discloses a photovoltaic split junction box production device, which is actually a dedicated assembly equipment for cables and junction boxes. However, there is a lack of a transfer device between the two devices, and they cannot be effectively connected. Manual operation is still required, so the wire harness processing and assembly cannot achieve fully automatic production. Utility Model Content

[0005] In order to realize the fully automatic production of wiring harness processing and assembly, the utility model provides a processing and assembly device for a photovoltaic junction box.

[0006] The technical solution adopted by the utility model is as follows: a processing and assembly equipment for a photovoltaic junction box, comprising: a wire pay-off rack, used to stably release the cable from the cable reel; a cable U-forming device, which pulls one end of the cable and rotates to form a U-shaped cable; a connector assembly machine and a junction box assembly machine, used to respectively assemble the connector, the junction box and the two ends of the U-shaped cable; a U-shaped cable moving machine, used to sequentially transport the U-shaped cable from each workstation of the connector assembly machine and the junction box assembly machine.

[0007] Preferably, the cable U-tying device includes: a rotating claw, used to clamp one end of the cable and rotate it 180°; a rotating shaft, which is axially rotated with the rotating claw; a rotary arm, with the rotating claw and the rotating shaft respectively installed at both ends; and a first driving mechanism, used to drive the rotating shaft to rotate.

[0008] Preferably, the rotating clamp is a pneumatic clamp with the jaws facing downwards.

[0009] Preferably, the first driving mechanism includes a first motor and a first synchronous belt; the rotating shaft is drivingly connected to the output shaft of the first motor via the first synchronous belt.

[0010] Preferably, the U-shaped cable moving machine comprises: a plurality of groups of static clamps arranged in parallel, each group of the static clamps having two clamps for clamping the two ends of the U-shaped cable, each group of the static clamps being arranged at equal intervals, corresponding to each workstation of the connector assembly machine and the junction box assembly machine being arranged at equal intervals; a plurality of groups of dynamic clamps arranged in parallel, each group of the dynamic clamps having two clamps for clamping the two ends of the U-shaped cable, each group of the dynamic clamps sliding back and forth in a straight line for transporting the U-shaped cable from the static clamps at the previous workstation to the static clamps at the next workstation; a slide for installing and supporting the dynamic clamps; a second drive mechanism for driving the slide to slide back and forth.

[0011] Preferably, the static clamp and the dynamic clamp are pneumatic clamps with jaws facing upward and arranged at the same height.

[0012] Preferably, the second driving mechanism includes: a second motor, serving as a power source for the slide; a synchronous pulley set and a second synchronous belt, which are drivingly connected to the output shaft of the second motor; an active slider, which is fixedly mounted on the second synchronous belt and the slide, and slides back and forth linearly with the second synchronous belt; and a linear guide rail, which is installed under the slide for support and guidance.

[0013] Preferably, it also includes an end positioning device, which is arranged after the cable U-forming device, including: an adjustment jaw, used to clamp one end of the U-shaped cable; a linear module, driving the adjustment jaw to move along the axial direction of one end of the U-shaped cable; a positioning plate, facing the end of one end of the U-shaped cable, which can move linearly along the axial direction of one end of the U-shaped cable; a flexible support member, used to install the positioning plate; a sensor, used to sense the axial position of the positioning plate, as the action signal source of the linear module.

[0014] Preferably, the adjustment jaw is a pneumatic jaw with the jaws facing downwards.

[0015] Preferably, the sensor is a photoelectric sensor, which cooperates with the sensing rod of the positioning piece by induction.

[0016] The utility model has the following beneficial effects: the utility model arranges a cable U-tying device before the connector assembly machine and the junction box assembly machine, first ties the cable into a U, and then uses a U-shaped cable line shifting machine to sequentially feed the U-shaped cable into each process of the connector assembly machine and the junction box assembly machine, thereby eliminating the position change process between the connector assembly machine and the junction box assembly machine, seamlessly realizing the connection between the connector assembly machine and the junction box assembly machine, and further realizing the fully automatic production of photovoltaic junction boxes, which has the advantages of high production efficiency, reliable assembly accuracy, and low defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the equipment of the embodiment of the utility model.

[0018] Figure 2 It is an overall schematic diagram of the equipment of an embodiment of the utility model (the box cover is hidden).

[0019] Figure 3 It is an enlarged schematic diagram of point A in the embodiment of the utility model.

[0020] Figure 4 It is a schematic diagram of a cable U-tying device in an embodiment of the utility model.

[0021] Figure 5 It is a schematic diagram of a U-shaped cable moving machine in an embodiment of the present utility model.

[0022] Figure 6 It is a partially enlarged schematic diagram of the U-shaped cable moving machine in the embodiment of the utility model.

[0023] Figure 7 It is a schematic diagram of the end positioning device in the embodiment of the utility model.

[0024] Figure 8 It is an enlarged schematic diagram of point B in the embodiment of the utility model.

[0025] Pay-off rack 1;

[0026] Cable U-tying device 2, rotating jaw 201, rotating shaft 202, rotary arm 203, first driving mechanism 204, first motor 205, first synchronous belt 206;

[0027] Connector assembly machine 3;

[0028] Junction box assembly machine 4;

[0029] U-shaped cable moving machine 5, static clamping jaw 501, dynamic clamping jaw 502, slide 503, second driving mechanism 504, second motor 505, synchronous pulley set 506, second synchronous belt 507, active slider 508, linear guide rail 509;

[0030] End positioning device 6, adjusting jaws 601, linear module 602, positioning sheet 603, flexible support 604, sensor 605, sensing rod 606. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the embodiments and drawings.

[0032] In the embodiment, Figures 1 to 8 As shown, a processing and assembly equipment for a photovoltaic junction box includes: a pay-off rack 1, which is used to stably release the cable from the reel; a cable U-shaped device 2, which pulls one end of the cable and rotates to form a U-shaped cable; a connector assembly machine 3 and a junction box assembly machine 4, which are used to assemble the connector, the junction box and the two ends of the U-shaped cable respectively; a U-shaped cable moving machine 5, which is used to sequentially move the U-shaped cable from each station of the connector assembly machine 3 and the junction box assembly machine 4. Among them, the pay-off rack 1 is a conventional cable pay-off device, the connector assembly machine 3 is disclosed in patent document 201820798877.3 (application date 2018.05.28), and the junction box assembly machine 4 is disclosed in patent document 202010482923.0 (application date 2020.06.01). In addition, the stripping and cutting mechanisms of the cable are disclosed in the above patent documents, and will not be described in detail here. In this embodiment, a cable U-tying device 2 is set before the connector assembly machine 3 and the junction box assembly machine 4. The cable is first U-tyed, and then the U-shaped cable is sent into each process of the connector assembly machine 3 and the junction box assembly machine 4 in sequence by using the U-shaped cable moving machine 5, thereby eliminating the replacement process between the connector assembly machine 3 and the junction box assembly machine 4, and seamlessly realizing the connection between the connector assembly machine 3 and the junction box assembly machine 4, thereby realizing the full-automatic production of photovoltaic junction boxes, which has the advantages of high production efficiency, reliable assembly accuracy, and low defective rate.

[0033] In the embodiment, Figure 3 , 4 As shown, the cable U-tying device 2 comprises: a rotating jaw 201, used to clamp one end of the cable and rotate 180°; a rotating shaft 202, which is in the same direction as the rotating jaw 201; a rotating arm 203, with the rotating jaw 201 and the rotating shaft 202 respectively installed at both ends; and a first driving mechanism 204, used to drive the rotating shaft 202 to rotate. In this embodiment, the rotating jaw 201 is used to clamp the front end of the cable, and then the rotating jaw 201 is driven by the first driving mechanism 204 to rotate 180° to achieve U-tying of the cable, and then the U-shaped cable can be transported to the next process in conjunction with the U-shaped cable moving machine 5.

[0034] In the embodiment, Figure 4As shown, the rotating jaw 201 is a pneumatic jaw with the jaw facing downward; the first driving mechanism 204 includes a first motor 205 and a first synchronous belt 206; the rotating shaft 202 is connected to the output shaft of the first motor 205 through the first synchronous belt 206. The structure of the embodiment here has two advantages. First, it is convenient to displace the rotating jaw 201 and the U-shaped cable moving machine 5 to avoid mutual interference. Second, the overall mechanism is suspended, which can save space and reduce the impact on the connector assembly machine 3 and the junction box assembly machine 4.

[0035] In the embodiment, Figure 5 , 6 As shown, the U-shaped cable moving machine 5 includes: a plurality of groups of static clamps 501 arranged in parallel, each group of static clamps 501 having two clamps for clamping the two ends of the U-shaped cable, each group of static clamps 501 being arranged at equal intervals, corresponding to each station of the connector assembly machine 3 and the junction box assembly machine 4 being arranged at equal intervals; a plurality of groups of dynamic clamps 502 arranged in parallel, each group of dynamic clamps 502 having two clamps for clamping the two ends of the U-shaped cable, each group of dynamic clamps 502 sliding back and forth in a straight line, for moving the U-shaped cable from the static clamps 501 of the previous station to the static clamps 501 of the next station; a slide 503 for installing and supporting the dynamic clamps 502; a second driving mechanism 504 for driving the slide 503 to slide back and forth. The static clamp 501 is used for the transfer and station processing of the U-shaped cable, and the reciprocating dynamic clamp 502 is used as the main handling device of the U-shaped cable. This embodiment structure realizes the orderly consistency of the beats at different stations and ensures the seamless connection between each process.

[0036] In the embodiment, Figure 5 , 6 As shown, the static clamping jaw 501 and the dynamic clamping jaw 502 are pneumatic clamping jaws with jaws facing upward and arranged at the same height. There are a large number of static clamping jaws 501 and dynamic clamping jaws 502, so they are placed upward on the table, which has better stability and ensures the reliability of the handling process.

[0037] In the embodiment, Figure 5 , 6 As shown, the second driving mechanism 504 includes: a second motor 505, which serves as a power source for the slide 503; a synchronous pulley set 506 and a second synchronous belt 507, which are connected to the output shaft of the second motor 505; an active slider 508, which is fixedly mounted on the second synchronous belt 507 and the slide 503, and slides back and forth linearly with the second synchronous belt 507; and a linear guide rail 509, which is mounted below the slide 503 for support and guidance. The above structure has the advantages of accurate transmission ratio, stable operation, and low failure rate.

[0038] In the embodiment, Figure 7 , 8As shown, it also includes an end positioning device 6, which is arranged after the cable U-shaped device 2, including: an adjustment jaw 601, used to clamp one end of the U-shaped cable; a linear module 602, which drives the adjustment jaw 601 to move along the axial direction of one end of the U-shaped cable; a positioning piece 603, which is opposite to the end of one end of the U-shaped cable and can move linearly along the axial direction of one end of the U-shaped cable; a flexible support 604, which is used to install the positioning piece 603; a sensor 605, which is used to sense the axial position of the positioning piece 603, as an action signal source of the linear module 602. The end positioning device 6 is usually arranged after the cable U-shaped device 2, and can also be arranged in front of the connector assembly machine 3 and the junction box assembly machine 4. The axial position of one end of the U-shaped cable is adjusted by adjusting the jaw 601, and the positioning piece 603 and the sensor 605 are used to detect whether it is adjusted in place, so as to ensure the accuracy of the cable end position, so as to ensure the orderly and reliable progress of subsequent processes.

[0039] In the embodiment, Figure 7 , 8 As shown, the adjustment jaw 601 is a pneumatic jaw with the jaw facing downwards. Similarly, this arrangement can avoid interference with the movable jaw 502 of the U-shaped cable moving machine 5. The sensor 605 is a photoelectric sensor, which cooperates with the sensing rod 606 of the positioning piece 603. Specifically, a U-shaped / groove-shaped photoelectric sensing switch can be used, which has the advantages of sensitive response and high reliability.

[0040] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. A photovoltaic junction box processing and assembly equipment, characterized in that: include: A pay-off frame (1), used for stably releasing the cable from the cable reel; A cable U-shaped device (2) is used to rotate one end of the traction cable to form a U-shaped cable; The connector assembly machine (3) and the junction box assembly machine (4) are used to assemble the connector, the junction box and the two ends of the U-shaped cable respectively; The U-shaped cable moving machine (5) is used to sequentially move the U-shaped cables from various workstations of the connector assembly machine (3) and the junction box assembly machine (4).

2. The photovoltaic junction box processing and assembly equipment according to claim 1, characterized in that: The cable U-tying device (2) comprises: A rotating clamp (201) is used to clamp one end of the cable and rotate it 180 degrees; A rotating shaft (202) which is axially oriented to rotate with the rotating jaw (201); A rotary arm (203), with the rotary clamp (201) and the rotary shaft (202) respectively mounted on both ends; The first driving mechanism (204) is used to drive the rotating shaft (202) to rotate.

3. The photovoltaic junction box processing and assembly equipment according to claim 2, characterized in that: The rotating clamp (201) is a pneumatic clamp with the jaws facing downwards.

4. The photovoltaic junction box processing and assembly equipment according to claim 2, characterized in that: The first driving mechanism (204) comprises a first motor (205) and a first synchronous belt (206); the rotating shaft (202) is drivingly connected to an output shaft of the first motor (205) via the first synchronous belt (206).

5. The photovoltaic junction box processing and assembly equipment according to claim 1, characterized in that: The U-shaped cable moving machine (5) comprises: A plurality of groups of static clamping jaws (501) arranged in parallel, each group of the static clamping jaws (501) having two members, used to clamp the two ends of the U-shaped cable, and each group of the static clamping jaws (501) being arranged at equal intervals, respectively corresponding to each station of the connector assembly machine (3) and the junction box assembly machine (4) being arranged at equal intervals; A plurality of groups of movable clamping jaws (502) arranged in parallel, each group of movable clamping jaws (502) having two members, for clamping two ends of a U-shaped cable, and each group of movable clamping jaws (502) sliding back and forth linearly, for transporting the U-shaped cable from the static clamping jaws (501) at a previous station to the static clamping jaws (501) at a next station; A slide table (503) for mounting and supporting the movable clamping jaw (502); The second driving mechanism (504) is used to drive the slide table (503) to slide back and forth.

6. The photovoltaic junction box processing and assembly equipment according to claim 5, characterized in that: The static clamping jaw (501) and the dynamic clamping jaw (502) are pneumatic clamping jaws with jaws facing upwards and arranged at the same height.

7. The photovoltaic junction box processing and assembly equipment according to claim 5, characterized in that: The second driving mechanism (504) comprises: A second motor (505) serving as a power source for the slide (503); A synchronous pulley set (506) and a second synchronous belt (507) are drivingly connected to an output shaft of the second motor (505); An active slider (508) is fixedly mounted on the second synchronous belt (507) and the slide table (503), and slides back and forth linearly along with the second synchronous belt (507); A linear guide rail (509) is installed below the slide table (503) for supporting and guiding.

8. The photovoltaic junction box processing and assembly equipment according to claim 1, characterized in that: It also includes an end positioning device (6), which is arranged behind the cable U-tying device (2) and includes: An adjustment clamping jaw (601) is used to clamp one end of the U-shaped cable; The linear module (602) drives the adjustment jaw (601) to move along the axis direction of one end of the U-shaped cable; A positioning piece (603) facing the end of one end of the U-shaped cable and capable of linearly moving along the axis direction of one end of the U-shaped cable; A flexible support member (604) used for mounting the positioning piece (603); The sensor (605) is used to sense the axial position of the positioning piece (603) and serves as an action signal source for the linear module (602).

9. The photovoltaic junction box processing and assembly equipment according to claim 8, characterized in that: The adjusting clamping jaw (601) is a pneumatic clamping jaw with the jaws facing downwards.

10. The photovoltaic junction box processing and assembly equipment according to claim 8, characterized in that: The sensor (605) is a photoelectric sensor, which cooperates with the sensing rod (606) of the positioning piece (603) by sensing.

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