Bus bar pressing and welding device

Abstract

The utility model provides a bus bar compressing and welding device which comprises a compressing and welding main support, a compressing and welding branch support is arranged on the compressing and welding main support, and a bus bar compressing device is arranged on one side of the compressing and welding branch support. A welding device is arranged on the other side of the pressing and welding branch bracket; the welding device comprises a welding wire section supply assembly and a clamping welding assembly. The welding wire section conveying assembly conveys welding wire sections provided by the welding wire section supply assembly into the junction box and is powered on to weld the bus bars and electrodes in the junction box together. According to the scheme, the welding wires are added during welding, the welding wires can fill gaps between the bus bars and the electrodes after being melted, the contact area is increased, the conductivity is improved, and in addition, the anti-seismic property is good after welding is conducted through the welding wires; the structure is a common structure, an expensive laser welding machine does not need to be used, and the production cost can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar photovoltaic equipment technical field, concretely relates to a busbar compression and welding device. BACKGROUND

[0002] Solar photovoltaic panel in production, after the silicon wafer array is arranged on the glass plate, a plurality of arrayed silicon wafers need to be connected by busbar, and the junction box needs to be fixed on the photovoltaic panel subsequently, and meanwhile, the lead end of the busbar needs to be reliably connected with the junction box to realize electrical connection with the control equipment.

[0003] A kind of junction box automatic installation machine is disclosed in the patent document with authorized announcement No.CN218123931U, including welding mechanism, the welding mechanism includes sixth translation module, sixth lifting mechanism, fifth mounting plate, laser welding mechanism, hold-down mechanism and positioning detection mechanism;The sixth lifting mechanism and the positioning detection mechanism are installed on the mounting frame by the sixth translation module, the sixth translation module is used to drive the sixth lifting mechanism and the positioning detection mechanism translation along the conveying direction parallel to the conveying part and / or the conveying direction perpendicular to the conveying part;The fifth mounting plate is connected on the movable part of the sixth lifting mechanism, the sixth lifting mechanism is used to drive the fifth mounting plate to lift;The laser welding mechanism and the hold-down mechanism are both arranged on the fifth mounting plate, the positioning detection mechanism is used to position two the lead before welding, the hold-down mechanism is used to compress two the lead on two electrode sheets of the junction box respectively, and the laser welding mechanism is used to weld two the lead on two the electrode sheet respectively.

[0004] However, the cost of laser welding mechanism is high, and multiple laser welding mechanisms are needed on a machine, and the rigidity of the welding place is high, and the anti-vibration performance is poor. Therefore, it is necessary to redesign a device to solve the above problems. SUMMARY

[0005] The utility model solves the technical problem of reducing the production cost of machine equipment and making the welding point more firm.

[0006] To solve the above technical problems, the utility model provides a kind of busbar compression and welding device, busbar compression and welding device includes reciprocating motion along the conveying direction of solar cell panel and compresses and welds total support, be equipped with the compression and welding sub-support that can reciprocate along the conveying direction of solar cell panel and compresses and welds on compression and welding total support, be equipped with the busbar compression device that compresses and welds sub-support one side and compresses the electrode in junction box after bending busbar, be equipped with the welding device that compresses and welds sub-support other side and electrode in junction box together with busbar is welded;The busbar compression device includes the compression device mounting plate that can be lifted on the one side of compression and welding sub-support, more than one compression assembly is equipped on compression device mounting plate;Compression assembly includes compression drive device, and compression block is equipped when installation block is down to certain position and can contact the compression block of the junction end of busbar in the drive end of compression drive device;The welding device includes transfer table, welding wire section supply component, welding wire section transport component and clamping welding component, welding wire section transport component transports the welding wire section provided by welding wire section supply component to transfer table, clamping welding component is sent to the welding wire in junction box on transfer table and is powered and is welded together with the electrode in junction box with busbar.

[0007] The above structure, by increasing welding wire when welding, can make welding wire fill the gap between busbar and electrode after melting, increase contact area, improve conductivity, in addition, due to the good flexibility of welding wire, the anti-seismic performance after welding is good;The structure uses common structure, does not need to use expensive laser welding machine, can effectively reduce the cost of production.

[0008] Further, vertical slide rail is equipped on compression and welding sub-support, and slide block is equipped on compression device mounting plate, and slide rail and slide block cooperate;

[0009] Lifting drive device for driving compression device mounting plate lifting is also equipped on compression and welding sub-support, and the drive end of lifting drive device is connected with compression device mounting plate.

[0010] Further, compression assembly further includes upper mounting block, the drive end of upper mounting block is connected with compression drive device, more than one slide rod is equipped on upper mounting block, slide rod includes fixed end and sliding end, fixed end is fixedly connected with upper mounting block, upper stopper is equipped on the top of sliding end, lower mounting block is slidably equipped on sliding end, lower stopper is equipped on the bottom end of sliding end to prevent lower mounting block from being separated from sliding end, elastic member is equipped between upper stopper and lower mounting block, compression block is arranged at the bottom of lower mounting block, and the compression block can contact the junction end of busbar when lower mounting block is down to certain position.

[0011] Further, the compression drive device is double-rod cylinder, and the cylinder body of double-rod cylinder is installed on compression device mounting plate, and upper mounting block is installed on the piston rod of double-rod cylinder.

[0012] Further, the welding wire section supply assembly comprises a welding wire reel support, a welding wire extraction assembly is arranged on one side of the welding wire reel support, and a welding wire cutting machine is arranged at the output end of the welding wire extraction assembly.

[0013] Further, the welding wire extraction assembly comprises a welding wire extraction motor, a driving wheel is arranged on the output shaft of the welding wire extraction motor, the welding wire extraction assembly further comprises a driven wheel arranged below the driving wheel, and the driving wheel and the driven wheel have a gap for the welding wire to pass through.

[0014] Further, a circular ring with elasticity is sleeved on the driving wheel.

[0015] Further, the welding wire section conveying assembly comprises a welding wire section translation device, a welding wire section lifting device is arranged on the welding wire section translation device, a welding wire section conveying frame is arranged at the output end of the welding wire section lifting device, a welding wire section clamping cylinder is arranged at the bottom end of the welding wire section conveying frame, and a welding wire section clamping claw is arranged on the welding wire section clamping cylinder.

[0016] Further, the clamping and welding assembly comprises a clamping and welding lifting device arranged on the pressing and welding sub-frame, a clamping and welding head is arranged at the output end of the clamping and welding lifting device, the clamping and welding head comprises a clamping and welding part, and a welding wire containing groove with an inverted trapezoidal cross section is arranged at the bottom of the clamping and welding part. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the bus bar pressing device in the embodiment of the present application.

[0018] Figure 2 It is a structure schematic view of the bus bar pressing device in the embodiment of the present application. Figure 1 It is an enlarged view of G in the figure.

[0019] Figure 3 It is a structure schematic view of the bus bar pressing and welding device in the embodiment of the present application.

[0020] Figure 4 It is an enlarged view of H in the figure. Figure 3

[0021] It is an enlarged view of I in the figure. Figure 5 DETAILED DESCRIPTION Figure 3 The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0022] As

[0023] As Figures 1 to 5 ​As shown, the busbar pressing and welding device 5 comprises a pressing and welding main bracket 50 reciprocating along the X-axis direction of the rack, which is driven by the existing servo motor plus screw nut driving mode, and then guided by the slide rail slide block structure to realize the reciprocating movement of the pressing and welding main bracket 50 along the X-axis direction of the rack.

[0024] A plurality of pressing and welding branch brackets 51 are arranged on the pressing and welding main bracket 50 along the Y-axis direction of the pressing and welding main bracket 50; in the embodiment, the number of the pressing and welding branch brackets 51 is three, which are driven by the gear and rack structure, that is, a rack is arranged on the pressing and welding main bracket 50, a driving motor is arranged on the pressing and welding branch bracket 51, and a gear is arranged on the output shaft of the driving motor, which is engaged with the rack to realize the driving.

[0025] The busbar pressing device 52 is arranged on the side of the pressing and welding branch bracket 51 close to the junction box preparation and feeding device 4.

[0026] As shown, Figure 1 in the embodiment, the busbar pressing device 52 comprises a pressing device mounting plate 520 reciprocating on one side of the pressing and welding branch bracket 51, which is driven by a lifting driving device, the driving end of the lifting driving device is connected with the pressing device mounting plate 520, and a plurality of pressing assemblies 521 are arranged on the pressing device mounting plate 520.

[0027] As shown, Figure 2 the pressing assembly 521 comprises a pressing driving device, which is a double-rod air cylinder 5210 in the embodiment, the cylinder body of the double-rod air cylinder 5210 is mounted on the pressing device mounting plate 520, the double-rod air cylinder 5210 has a piston rod, an upper mounting block 5211 is arranged on the piston rod, one or more slide rods 5212 are arranged on the upper mounting block 5211, the slide rod 5212 comprises a fixed end and a sliding end, the fixed end is fixedly connected with the upper mounting block 5211, an upper stop piece 5213 is arranged on the top of the sliding end, a lower mounting block 5214 is slidably arranged on the sliding end, a lower stop piece 5215 is arranged at the bottom end of the sliding end to prevent the lower mounting block 5214 from being separated from the sliding end, an elastic piece is arranged between the upper stop piece 5213 and the lower mounting block 5214, which is a spring 5216 in the embodiment, and a pressing block 5217 is arranged at the bottom of the lower mounting block 5214, which can contact the wiring end of the busbar when the lower mounting block 5214 is lowered to a certain position.

[0028] The double-rod cylinder 5210 drives the pressing block 5217 to move downward, and the bottom surface of the pressing block 5217 is in contact with the lead end 101 of the bus bar. Because the spring 5216 is arranged, the lower mounting block 5214 and the pressing block 5217 have a certain elastic stroke, so that the lead end 101 will not be deformed by being pressed by the electrode in the terminal box, and sufficient pressing force can be applied to the lead end 101 to ensure that the lead end 101 is tightly connected with the electrode in the terminal box.

[0029] As shown in Figures 3 to 5 the other side of the pressing and welding branch frame 51 is provided with a welding device for welding the lead end of the bus bar and the electrode in the terminal box together.

[0030] The welding device comprises a welding wire section supply assembly 531 and a clamping and welding assembly 533, and the clamping and welding assembly 533 carries the welding wire section provided by the welding wire section supply assembly 531 into the terminal box and applies electricity to weld the lead end of the bus bar and the electrode in the terminal box together.

[0031] The welding wire section supply assembly 531 comprises a welding wire spool support 5311, which can be used to support a coiled welding wire, and the coiled welding wire can rotate on the welding wire spool support 5311. Generally, the welding wire is a tin wire.

[0032] A welding wire extraction assembly 5312 is arranged on one side of the welding wire spool support 5311, and the welding wire extraction assembly 5312 comprises a welding wire extraction motor 53120, a driving wheel 53121 is arranged on the output shaft of the welding wire extraction motor 53120, and a driven wheel 53122 is arranged below the driving wheel 53121. The driving wheel 53121 and the driven wheel 53122 have a gap for the welding wire to pass through, and an elastic ring is arranged on the driving wheel 53121. The driving wheel 53121 and the driven wheel 53122 can clamp the welding wire. When the welding wire extraction motor 53120 is started, the welding wire extraction assembly 5312 can pull out the welding wire of the coiled welding wire on the welding wire spool support 5311.

[0033] The welding wire extraction assembly 5312 further comprises a wire outlet 53123, through which the welding wire can be continuously output.

[0034] A welding wire cutting machine 5313 is arranged at the output end of the welding wire extraction assembly 5312, which can cut the welding wire intermittently. The welding wire cutting machine 5313 is a mature prior art, and its specific structure is not described here.

[0035] A support table 53124 for supporting the welding wire is arranged on the side opposite to the wire outlet 53123 of the welding wire cutting machine 5313.

[0036] The clamping and welding assembly 533 comprises a clamping and welding lifting device 5330 arranged on the pressing and welding sub-frame 51. In the embodiment, the clamping and welding lifting device 5330 is a driving structure of a servo motor matched with a ball screw. The clamping and welding lifting device 5330 is a mature prior art, and the specific structure is not described here.

[0037] A clamping and welding head 5331 is arranged at the output end of the clamping and welding lifting device 5330. The clamping and welding head 5331 comprises a clamping and welding part 5332, and a solder wire accommodating groove 5333 with an inverted trapezoidal cross section is arranged at the bottom of the clamping and welding part 5332. Since the tin wire is soft, when the clamping and welding part 5332 is pressed down, the tin wire can be clamped into the solder wire accommodating groove 5333. The clamping and welding part 5332 is used as a welding head. When the clamping and welding part 5332 clamps the solder wire to move into the terminal box and contact the lead end and the electrode in the terminal box, the clamping and welding part 5332 is powered to melt the tin wire to weld the lead end and the electrode together.

[0038] When the tin wire is taken out, the clamping and welding head 5331 is first moved above the solder wire section supply assembly 531, the solder wire accommodating groove 5333 is aligned with the tin wire, then the clamping and welding head 5331 is moved down. Since the tin wire is supported by the support table 53124, the tin wire is easily clamped into the solder wire accommodating groove 5333. Then, the solder wire cutting machine 5313 cuts the tin wire.

[0039] The above scheme can fill the gap between the bus bar lead end and the electrode in the terminal box by adding tin wire during welding, increase the contact area, improve the conductivity, and the tin wire has good flexibility and good anti-shock performance after welding. The structure uses a commonly used structure, does not need to use an expensive laser welding machine, can effectively reduce the production cost, and improve the market competitiveness of the product.

Claims

1. A busbar compression and welding apparatus, characterized by: The busbar pressing and welding device comprises a pressing and welding main bracket reciprocating along the conveying direction of the solar panel, a pressing and welding branch bracket reciprocating along the direction perpendicular to the conveying direction of the solar panel is arranged on the pressing and welding main bracket, a busbar pressing device is arranged on one side of the pressing and welding branch bracket to press the bent busbar and the electrode in the junction box, and a welding device is arranged on the other side of the pressing and welding branch bracket to weld the busbar and the electrode in the junction box together. The busbar pressing device comprises a pressing device mounting plate reciprocating on one side of the pressing and welding branch bracket, and more than one pressing assembly is arranged on the pressing device mounting plate. The welding device comprises a welding wire section supply assembly and a clamping welding assembly, the welding wire section conveying assembly conveys the welding wire section provided by the welding wire section supply assembly into the junction box and electrically welds the busbar and the electrode in the junction box together.

2. The busbar compression and welding apparatus of claim 1, wherein: A slide rail is vertically arranged on the pressing and welding branch bracket, and a slide block is arranged on the pressing device mounting plate. A lifting driving device is arranged on the pressing and welding branch bracket to drive the pressing device mounting plate to lift, and the driving end of the lifting driving device is connected with the pressing device mounting plate.

3. The busbar compression and welding apparatus of claim 1, wherein: The pressing assembly further comprises an upper mounting block connected with the driving end of the pressing driving device, more than one slide rod is arranged on the upper mounting block, the slide rod comprises a fixed end and a sliding end, the fixed end is fixedly connected with the upper mounting block, an upper stopper is arranged on the top of the sliding end, a lower mounting block is slidably arranged on the sliding end, a lower stopper is arranged on the bottom of the sliding end to prevent the lower mounting block from being separated from the sliding end, an elastic member is arranged between the upper stopper and the lower mounting block, and the pressing block is arranged at the bottom of the lower mounting block and can contact the wiring end of the busbar when the lower mounting block is lowered to a certain position.

4. The busbar compression and welding apparatus of claim 3, wherein: The pressing driving device is a double-rod air cylinder, the cylinder body of the double-rod air cylinder is mounted on the pressing device mounting plate, and the upper mounting block is mounted on the piston rod of the double-rod air cylinder.

5. The busbar compression and welding apparatus of claim 1, wherein: The welding wire section supply assembly comprises a welding wire reel bracket, a welding wire extraction assembly is arranged on one side of the welding wire reel bracket, and a welding wire cutting machine is arranged on the output end of the welding wire extraction assembly.

6. The busbar compression and welding apparatus of claim 5, wherein: The welding wire extraction assembly comprises a welding wire extraction motor, a driving wheel is arranged on the output shaft of the welding wire extraction motor, the welding wire extraction assembly further comprises a driven wheel arranged below the driving wheel, and the driving wheel and the driven wheel have a gap for the welding wire to pass through.

7. The busbar compression and welding apparatus of claim 6, wherein: A circular ring with elasticity is sleeved on the driving wheel.

8. The busbar compression and welding apparatus of claim 1, wherein: The clamping welding assembly comprises a clamping welding lifting device arranged on the pressing and welding branch bracket, a clamping welding head is arranged on the output end of the clamping welding lifting device, the clamping welding head comprises a clamping welding part, and a welding wire containing groove with an inverted trapezoidal cross section is arranged at the bottom of the clamping welding part.

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