Multi-station welding mechanism

Abstract

The utility model provides a multi-station welding mechanism which comprises a rotation driving mechanism, a plurality of welding guns and a temperature detector, the welding guns and the temperature detector are arranged on the rotation driving mechanism, the welding guns are arranged on the rotation driving mechanism through a rotating disc, and the welding guns are evenly distributed in the circumferential direction of the rotating disc. The multiple welding guns can be driven by the rotary driving mechanism to rotate and change positions, the welding guns are arranged on the rotary disc through a lifting mechanism and can be driven by the lifting mechanism to ascend and descend, and the temperature detector is arranged on the rotary driving mechanism through a connecting rod and does not rotate along with the rotary disc. And the station corresponding to the temperature detector is a fixed welding station and is used for measuring the temperature of the welding gun at the station. Through structural optimization, a multi-welding-head standby automatic replacement mode is adopted, and the problem that the productivity is affected due to shutdown when welding heads are maintained and replaced in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cell manufacturing, in particular to a multi-station welding mechanism. Background Art

[0002] The junction box of solar cell modules is very important in the composition of solar cell modules. Its main function is to connect the electricity generated by solar cells to external lines. At present, the junction box welding machines used in photovoltaic cell production workshops generally adopt fixed single welding head welding. The integrated structure of temperature sensor and welding head has a high failure rate and is difficult to repair. The downtime of a single failure accumulates too long, affecting production capacity, and the replacement cost is high. Utility Model Content

[0003] The utility model aims to provide a multi-station welding mechanism which, through structural optimization and the use of a multi-welding head standby automatic replacement mode, solves the problem of the existing maintenance and replacement of welding heads affecting production capacity.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-station welding mechanism, comprising a rotary drive mechanism, a plurality of welding guns and a temperature detector arranged on the rotary drive mechanism, wherein the welding guns are arranged on the rotary drive mechanism through a turntable, and the plurality of welding guns are evenly arranged along the circumference of the turntable, and the plurality of welding guns can be rotated and changed in position under the drive of the rotary drive mechanism, the welding guns are arranged on the turntable through a lifting mechanism, and can be lifted and lowered under the drive of the lifting mechanism, the temperature detector is arranged on the rotary drive mechanism through a connecting rod, and does not rotate with the turntable, the station corresponding to the temperature detector is a fixed welding station, and is used to measure the temperature of the welding gun at the station.

[0005] As a further improved technical solution of the utility model, the lifting mechanism includes a lifting cylinder, which is arranged on the turntable through a fixing plate, the fixing plate is fixed to the bottom surface of the turntable, and the piston end of the lifting cylinder drives the welding gun to rise and fall.

[0006] As a further improved technical solution of the utility model, a slide rail is further provided on the fixed plate, the welding gun is slidably arranged on the slide rail through a slider, and the piston end of the lifting cylinder is connected to the slider.

[0007] As a further improved technical solution of the utility model, two temperature detectors are arranged in parallel.

[0008] As a further improved technical solution of the utility model, there are four welding guns.

[0009] The multi-station welding mechanism of the utility model is designed with a multi-station welding gun, which can seamlessly switch spare welding heads to ensure the continuity of production, greatly reduce the time for maintenance and replacement, increase the utilization rate of production capacity, change the original integrated structure of the temperature sensing probe and the welding head, and adopt a split type to reduce the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0011] Figure 2 It is a bottom-up plan view of the present invention. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should also be noted that, for the convenience of description, the accompanying drawings only show parts related to the utility model rather than all structures.

[0013] Reference Figure 1-2 The multi-station welding mechanism of this embodiment includes a rotary drive mechanism 1, a plurality of welding guns 2 and a temperature detector 3 arranged on the rotary drive mechanism 1. The welding guns 2 are arranged on the rotary drive mechanism 1 through a turntable 4. The plurality of welding guns 2 are evenly arranged along the circumference of the turntable 4. The plurality of welding guns 2 can be rotated and changed under the drive of the rotary drive mechanism 1. At the same time, the welding guns 2 are arranged on the turntable 4 through a lifting mechanism and can be lifted and lowered under the drive of the lifting mechanism. The temperature detector 3 is arranged at the fixed end of the rotary drive mechanism 1 through a connecting rod 6 and does not rotate with the turntable 4. The station corresponding to the temperature detector 3 is a fixed welding station, which is used to measure the temperature of the head of the welding gun 2 at the station.

[0014] Specifically, in this embodiment, the rotary drive mechanism 1 is a rotary motor or a rotary cylinder, and there are four welding guns 2, which are evenly distributed at four positions of the turntable 4. Driven by the rotary drive mechanism 1, the four welding guns can exchange positions. When in use, only one welding gun is working, and the other three are standby. When a working welding gun is detected to have a fault, it stops working, and the lifting mechanism drives it to rise, and the rotary drive mechanism 1 drives it to rotate to other workstations to exit use. The spare welding gun 2 is selected and turned to the welding position, and then it descends to the welding position to continue working without delaying the welding work of the junction box.

[0015] The station corresponding to the temperature detector 3 is a fixed welding station. When the junction box to be welded is transported to the fixed welding station, one of the welding guns 2 is lowered to the welding height at the fixed welding station to weld the junction box. The temperature detector 3 monitors the temperature of the head of the welding gun 2 at the station in real time. Furthermore, two temperature detectors 3 are arranged in parallel, preferably infrared temperature probes. The dual probes increase the reliability of the detection signal. The signals of the two infrared temperature probes are connected in parallel and imported into the controller external to the mechanism. As the key temperature data, the deviation value between the two temperature probes is recorded, and the deviation between the set temperature and the actual temperature value measured by the welding head is determined to make an early warning. In this embodiment, the split structure of the temperature detector and the welding gun increases the reliability of the circuit and improves the situation of high failure rate.

[0016] Further, in this embodiment, the lifting mechanism includes a lifting cylinder 5, which is arranged on the turntable 4 through a fixing plate 7, and the fixing plate 7 is fixed to the bottom surface of the turntable 4. The piston end of the lifting cylinder 5 drives the welding gun 2 to rise and fall. A slide rail 8 is also arranged on the fixing plate 7, and the welding gun 2 is slidably arranged on the slide rail 8 through a slider 9. The piston end of the lifting cylinder 5 is connected to the slider 9, thereby driving the welding gun 2 to rise and fall.

[0017] The multi-station welding mechanism of this embodiment can also be equipped with a current and voltage meter to monitor the working parameters of the welding head in real time and form a record. When an abnormality occurs, an alarm will be issued in the form of an alarm and sound and light. The entire multi-station welding mechanism is controlled by a controller to control the position change of each welding gun. The number of welding head working uses is set in the controller. The welding head that has completed the number of uses or failed will be powered off immediately, and the power-off mark or abnormal alarm will be displayed on the display. The heating time of the welding head to be switched will also be preheated and standby before the regular use number of the previous welding head is reached. The controller and display here are prior art, and no further description will affect the understanding of this application.

[0018] Terms such as "upper", "lower", "top", "bottom" and the like used herein to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one feature relative to another feature as shown in the drawings. It is understood that, depending on the placement of the product, the terms of spatial relative positions may be intended to include different orientations in addition to the orientation shown in the drawings, and should not be construed as limitations on the claims.

[0019] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A multi-station welding mechanism, characterized in that: The invention comprises a rotary drive mechanism, a plurality of welding guns and a temperature detector arranged on the rotary drive mechanism. The welding guns are arranged on the rotary drive mechanism via a turntable. The plurality of welding guns are evenly arranged along the circumference of the turntable. The plurality of welding guns can be rotated and changed in position under the drive of the rotary drive mechanism. The welding guns are arranged on the turntable via a lifting mechanism and can be lifted and lowered under the drive of the lifting mechanism. The temperature detector is arranged on the rotary drive mechanism via a connecting rod and does not rotate with the turntable. The workstation corresponding to the temperature detector is a fixed welding workstation and is used to measure the temperature of the welding gun at the workstation.

2. The multi-station welding mechanism according to claim 1, characterized in that: The lifting mechanism comprises a lifting cylinder, which is arranged on the turntable through a fixing plate, and the fixing plate is fixed to the bottom surface of the turntable. The piston end of the lifting cylinder drives the welding gun to move up and down.

3. The multi-station welding mechanism according to claim 2, characterized in that: The fixing plate is also provided with a slide rail, the welding gun is slidably arranged on the slide rail via a slider, and the piston end of the lifting cylinder is connected to the slider.

4. The multi-station welding mechanism according to claim 1, characterized in that: Two temperature detectors are arranged in parallel.

5. The multi-station welding mechanism according to claim 4, characterized in that: There are four welding guns.

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