Solder strip pressing tool jig and series welding machine

Abstract

The utility model discloses a welding strip pressing tool jig and a series welding machine. The welding strip pressing tool jig comprises a jig body. The plurality of balancing weights and the plurality of non-slip mats are respectively and fixedly arranged on the jig main body; the plurality of pressing needle assemblies are movably arranged on the jig main body in a penetrating manner; a plurality of first containing grooves are formed in the outer side of the jig body in a penetrating mode, a plurality of second containing grooves are formed in the inner side of the jig body in a penetrating mode, a first contact part and a second contact part are arranged in the first containing grooves and the second containing grooves respectively, and the relative height of the first contact part is larger than that of the second contact part. According to the welding strip pressing tool jig, the pressing needle assemblies with the same elasticity are adopted, and the multiple pressing needle assemblies are movably arranged in the corresponding first containing grooves and the corresponding second containing grooves in a penetrating mode and are in contact connection with the corresponding first contact parts and the corresponding second contact parts respectively, so that when the welding strip pressing tool jig is pressed downwards, a welding strip on the side of a welding strip traction device does not deform; and the welding strip pressing tool jig can be conveniently maintained and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cell accessories, and in particular to a welding ribbon pressing tool and a string welding machine. Background Art

[0002] The string welding machine welds the welding ribbon to the grid lines of the battery cell to form a battery string. During the welding process between the battery cell and the welding ribbon, a welding ribbon pressing fixture is required to press the welding ribbon onto the battery cell. In the existing string welding technology, in order to ensure the pressing operation of the welding ribbon and to ensure that the welding ribbon on the side of the welding ribbon pulling device does not deform when pressed down, the existing technology generally adopts a pressure needle assembly with different elastic forces to achieve this. This results in a large number of types of components in the welding ribbon pressing fixture, affecting the maintenance or replacement efficiency of the welding ribbon pressing fixture, thereby affecting production capacity to a certain extent. Therefore, a welding ribbon pressing fixture and a string welding machine are provided to solve the above problems. Utility Model Content

[0003] One of the purposes of the present utility model is to provide a welding ribbon pressing fixture and a string welding machine, so as to solve the problem that there are many types of pressure needle components in the existing welding ribbon pressing fixture and it is inconvenient to repair and replace them.

[0004] The utility model provides a welding strip pressing fixture and a string welding machine which can be realized by the following technical solutions:

[0005] The utility model discloses a welding ribbon pressing tool fixture, which comprises a fixture body; a plurality of counterweight blocks, which are respectively fixedly arranged on two opposite sides of the fixture body; a plurality of pressure needle assemblies, which are respectively movably arranged on the fixture body; and a plurality of anti-slip pads, which are respectively fixedly arranged on the fixture body.

[0006] Among them, the outer side of the jig body is respectively penetrated by a plurality of first accommodating grooves, and the inner side is respectively penetrated by a plurality of second accommodating grooves; the first accommodating groove and the second accommodating groove are respectively provided with a first contact portion and a second contact portion, and the relative height of the first contact portion is higher than that of the second contact portion, and the plurality of press needle assemblies are respectively movably provided in the corresponding first accommodating groove and the second accommodating groove and are respectively contacted and connected with the corresponding first contact portion and the second contact portion, so that the solder ribbon on the side of the solder ribbon traction device will not be deformed when the solder ribbon pressing tool is pressed down.

[0007] In one embodiment, a plurality of through holes are respectively provided on the fixture body.

[0008] In one embodiment, a plurality of fixing holes and a plurality of mounting cavities are respectively provided at both ends of the jig body; the two counterweights are respectively fixed at the two ends of the jig body through the corresponding fixing holes; and the plurality of anti-slip pads are respectively fixed in the corresponding mounting cavities.

[0009] In one embodiment, the counterweight is a washer or a magnet.

[0010] In one embodiment, the counterweight block has concave and convex patterns on its surface.

[0011] In one embodiment, the pressure needle assembly includes a pressure needle, which is movable through the first accommodating groove or the second accommodating groove; an elastic member that is movable through the pressure needle, one end of which is in contact and connected with the pressure needle, and the other end of which is in contact and connected with the first contact portion or the second contact portion.

[0012] In one embodiment, the pressing needle includes a pressing needle body, which is movably arranged in the first accommodating groove or the second accommodating groove; and a fixing member fixedly arranged on one end of the pressing needle body and above the jig body.

[0013] In one embodiment, a plurality of anti-slip parts are provided on a side of the press pin body opposite to the welding strip.

[0014] In one embodiment, a plurality of grid patterns are provided on the outer surface of the anti-slip pad.

[0015] The utility model provides a string welding machine including a jig conveying device, which performs a conveying operation on any of the above-mentioned welding ribbon pressing tooling jigs;

[0016] It also includes a cell conveying device, a welding ribbon loading device, a cell fixture handling device, a welding ribbon laying device, a cell welding ribbon transmission device, a welding device, a fixture handling device and a string unloading device;

[0017] Among them, the battery cell conveying device conveys the battery cells required for battery string welding; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the battery cell jig conveying device conveys the battery cells at the output end of the battery cell conveying device and the solder tape pressing tooling jig at the output end of the jig conveying device to the input end of the battery cell solder tape transmission device; the solder tape laying device lays the solder tape on the battery cells on the battery cell solder tape transmission device; the battery cell solder tape transmission device conveys the battery cells, solder tape and the solder tape pressing tooling jig pressed on the solder tape together and passes The welding device; the welding device is arranged between the input end and the output end of the battery cell welding ribbon transmission device, and it welds the battery cells and welding ribbons on the battery cell welding ribbon transmission device; the jig transporting device transports the welding ribbon pressing tooling jig from the output end of the battery cell welding ribbon transmission device to the input end of the jig conveying device; the jig conveying device transports the reflowed welding ribbon pressing tooling jig from the input end of the jig conveying device to its output end; the string output device performs string processing on the battery strings obtained by welding by the welding device and outputs battery strings of predetermined length.

[0018] Compared with the prior art, the beneficial effects of the welding strip pressing fixture and string welding machine of the utility model are:

[0019] The utility model provides a welding ribbon pressing fixture and a string welding machine by adopting pressure needle assemblies with the same elastic force. Multiple pressure needle assemblies are movably arranged in the corresponding first accommodating groove and the second accommodating groove and are respectively in contact and connected with the corresponding first contact part and the second contact part, so that the welding ribbon on the side of the welding ribbon traction device will not be deformed when the welding ribbon pressing fixture is pressed down, which is convenient for repairing and replacing the welding ribbon pressing fixture, improves the replacement efficiency of the consumable pressure needle assembly, and can improve production capacity to a certain extent; at the same time, the pressure needle assemblies in the utility model all adopt the same elastic force, so that the number of parts of the welding ribbon pressing fixture is reduced, which can reduce the cost of the welding ribbon pressing fixture to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a three-dimensional structural diagram of a welding strip pressing fixture of the utility model;

[0022] Figure 2 yes Figure 1The schematic diagram of the structure of a welding strip pressing fixture of the present invention from another perspective is shown;

[0023] Figure 3 yes Figure 1 The schematic diagram of the top structure of a welding ribbon pressing tool of the present invention is shown, which includes a tail clip assembly;

[0024] Figure 4 yes Figure 1 The exploded structure diagram of a welding strip pressing fixture of the present invention is shown, which includes a fixture body;

[0025] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the fixture body shown.

[0026] Markings in the figure: 10, welding ribbon pressing fixture; 11, fixture body; 111, first accommodating groove; 1111, first contact portion; 112, second accommodating groove; 112, second contact portion; 113, through hole; 114, fixing hole; 12, counterweight block; 121, concave and convex texture; 13, press needle assembly; 131, press needle; 1311, press needle body; 1312, fixing part; 132, elastic part; 14, anti-slip pad; 141, grid texture. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] See also Figures 1-4As shown, the utility model provides a welding ribbon pressing fixture 10 mainly comprising a fixture body 11, two counterweights 12, a plurality of pressure needle assemblies 13 and a plurality of anti-slip pads 14; the fixture body 11 is a load-bearing body; the two counterweights 12 are fixedly arranged on the opposite sides of the fixture body 11, and the fixture transfer robot realizes the transfer operation of the welding ribbon pressing fixture 10 by sucking or clamping the two counterweights 12; the plurality of pressure needle assemblies 13 are movably arranged on the fixture body 11, and the corresponding welding ribbons are pressed onto the battery cells through the plurality of pressure needle assemblies 13, thereby improving the welding effect of the welding ribbons and the battery cells; the plurality of anti-slip pads 14 are fixedly arranged on the fixture body 11, which increases the friction of the welding ribbon pressing fixture 10 during its movement on the conveyor belt, thereby reducing slippage and damage to the battery cells and the conveyor belt.

[0030] See also Figure 1-Figure 5 As shown, in this embodiment, a plurality of first accommodating grooves 111 and a plurality of second accommodating grooves 112 are provided on the fixture body 11, and the plurality of first accommodating grooves 111 are respectively provided on the outer side of the fixture body 11, and the plurality of second accommodating grooves 112 are respectively provided on the inner side of the fixture body 11, and the first accommodating grooves 111 and the second accommodating grooves 112 are respectively provided with first contact portions 1111 and second contact portions 1121, and the relative height of the first contact portion 1111 is higher than that of the second contact portion 1121, and the plurality of press needle assemblies 13 are respectively provided on the corresponding first accommodating grooves 111 and second accommodating grooves. 112 and are respectively in contact and connected with the corresponding first contact portion 1111 and the second contact portion 1121; a plurality of through holes 113 are also provided on the fixture body 11, so that the light emitted by the UV lamp or the infrared lamp can be irradiated onto the battery cell and the welding strip through the plurality of through holes 113, so that the welding strip can be welded or solidified on the battery cell; a plurality of fixing holes 114 and a plurality of mounting cavities (not shown) are respectively provided at both ends of the fixture body 11, and the two counterweights 12 are respectively fixed at the two ends of the fixture body 11 through the corresponding fixing holes 114; a plurality of anti-slip pads 14 are respectively fixed in the corresponding mounting cavities (not shown).

[0031] See also Figures 1-4 As shown, in this embodiment, the counterweight 12 is provided with a concave-convex pattern 121 on its surface. These patterns 121 increase the friction between the jig transfer robot and the counterweight 12 during handling, thereby ensuring stable handling of the welding ribbon pressing jig. In this embodiment, the counterweight 12 is a washer; in other embodiments, the counterweight 12 can also be a magnet.

[0032] See also Figures 1-4As shown, in this embodiment, the pressure needle assembly 13 includes a pressure needle 131 and an elastic member 132; the pressure needle 131 movably passes through the first accommodating groove 111 or the second accommodating groove 112, and can move longitudinally relative to the jig body 11, and the first accommodating groove 111 or the second accommodating groove 112 guides and limits the longitudinal movement of the pressure needle 131; the elastic member 132 is movably arranged on the pressure needle 131, one end of which is in contact with the pressure needle 131, and the other end of which is in contact with the first contact portion 1111 or the second contact portion 1121. The elastic member 132 provides a buffering force and a restoring force for the longitudinal movement of the pressure needle 131. Due to the different heights of the first contact portion 1111 and the second contact portion 1121, when the pressure needle assembly 13 is the same, under the action of the self-gravity of the jig body 11 and the magnetic attraction of the counterweight block 12, the solder ribbon on the solder ribbon traction device side will not be deformed when the solder ribbon pressing tool 10 is pressed down, thereby better pressing the solder ribbon on the battery cell. Specifically, the pressing needle 131 includes a pressing needle body 1311 and a fixing member 1312. The pressing needle body 1311 is movably arranged in the first receiving groove 111 or the second receiving groove 112. The fixing member 1312 is fixedly arranged on one end of the pressing needle body 1311 and is arranged above the jig body 11, thereby confining the pressing needle body 1311 in the first receiving groove 111 or the second receiving groove 112; the elastic member 132 is a spring. Preferably, a plurality of anti-slip members are provided on the side of the pressing needle body 1311 relative to the welding strip. Through the action of the plurality of anti-slip members, the pressing needle body 1311 does not slide relative to the welding strip when in contact with the welding strip; the anti-slip member can be a striped grid.

[0033] See also Figure 1 、 Figure 3 and Figure 4 As shown, multiple anti-slip pads 14 are respectively fixedly arranged in corresponding installation cavities (not shown in the figure); specifically, multiple grid patterns 141 are provided on the outer surface of the anti-slip pad 14, and the multiple grid patterns 141 increase the friction force of the welding ribbon pressing fixture 10 during movement on the conveyor belt, thereby reducing slipping and damage to the battery cells and the conveyor belt.

[0034] The utility model provides a string welding machine including a jig conveying device, which performs a conveying operation on any of the above-mentioned welding ribbon pressing tool jigs 10;

[0035] It also includes a cell conveying device, a welding ribbon loading device, a cell fixture handling device, a welding ribbon laying device, a cell welding ribbon transmission device, a welding device, a fixture handling device and a string unloading device;

[0036] Among them, the battery cell conveying device conveys the battery cells required for battery string welding; the welding tape feeding device places the welding tape roll to provide the welding tape required for battery string welding; the battery cell fixture conveying device conveys the battery cells at the output end of the battery cell conveying device and the welding tape pressing tooling jig 10 at the output end of the jig conveying device to the input end of the battery cell welding tape transmission device; the welding tape laying device lays the welding tape on the battery cells on the battery cell welding tape transmission device; the battery cell welding tape transmission device conveys the battery cells, welding tape and the welding tape pressing tooling jig 10 pressed on the welding tape together and Through the welding device; the welding device is arranged between the input end and the output end of the battery cell welding ribbon transmission device, and it welds the battery cell and the welding ribbon on the battery cell welding ribbon transmission device; the jig transporting device transports the welding ribbon pressing tooling jig 10 from the output end of the battery cell welding ribbon transmission device to the input end of the jig conveying device; the jig conveying device transports the reflowed welding ribbon pressing tooling jig 10 from the input end of the jig conveying device to its output end; the string output device performs string processing on the battery strings obtained by welding the welding device and outputs battery strings of predetermined length.

[0037] It should be noted that the specific working process of the present invention's solder strip pressing jig and string welding machine is as follows: the jig transfer robot absorbs or clamps two counterweights 12 to transfer the solder strip pressing jig 10 to the solder strip arranged on the battery cell solder strip transmission device, and then, under the action of the jig body 11's own gravity and the magnetic attraction of the counterweight 12, multiple pressure needle assemblies 13 press the corresponding solder strips. Since the contact heights of the first accommodating groove 111 and the second accommodating groove 112 with the elastic member 132 are different, the solder strip on the solder strip traction device side will not be deformed when the solder strip pressing jig 10 is pressed down, thereby better pressing the solder strip onto the battery cell. Since the pressure needle assembly 13 is a consumable item, it needs to be replaced and repaired frequently. Since multiple pressure needle assemblies 13 use the same elastic force, it is convenient to replace and repair the pressure needle assembly 13.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A welding strip pressing fixture, characterized in that: include: Fixture body; A plurality of counterweights, each fixedly disposed on two opposite sides of the fixture body; A plurality of pressure needle assemblies are movably arranged on the fixture body; A plurality of anti-slip pads, each of which is fixedly disposed on the fixture body; Among them, the outer side of the jig body is respectively provided with a plurality of first accommodating grooves, and the inner side thereof is respectively provided with a plurality of second accommodating grooves; the first accommodating groove and the second accommodating groove are respectively provided with a first contact portion and a second contact portion, and the relative height of the first contact portion is higher than that of the second contact portion, and the plurality of press needle assemblies are respectively movably provided in the corresponding first accommodating groove and the second accommodating groove and are respectively contacted and connected with the corresponding first contact portion and the second contact portion, so that the solder ribbon on the side of the solder ribbon traction device will not be deformed when the solder ribbon pressing tool is pressed down.

2. The welding strip pressing fixture according to claim 1, characterized in that: The fixture body is also provided with a plurality of through holes.

3. The welding strip pressing fixture according to claim 2, characterized in that: A plurality of fixing holes and a plurality of mounting cavities are respectively provided at both ends of the jig body; the two counterweights are respectively fixed at the two ends of the jig body through the corresponding fixing holes; and the plurality of anti-slip pads are respectively fixed in the corresponding mounting cavities.

4. The welding strip pressing fixture according to claim 1, characterized in that: The counterweight block is made of a washer iron or a magnet.

5. The welding strip pressing fixture according to claim 4, characterized in that: The surface of the counterweight block is provided with concave and convex patterns.

6. The welding strip pressing fixture according to claim 1, characterized in that: The pressure needle assembly includes a pressure needle, which movably passes through the first accommodating groove or the second accommodating groove; an elastic member movably passes through the pressure needle, one end of which is in contact with the pressure needle and the other end of which is in contact with the first contact portion or the second contact portion.

7. The welding strip pressing fixture according to claim 6, characterized in that: The pressing needle includes a pressing needle body, which is movably arranged in the first accommodating groove or the second accommodating groove; and a fixing piece fixedly arranged on one end of the pressing needle body and arranged above the jig body.

8. The welding strip pressing fixture according to claim 7, characterized in that: A plurality of anti-slip parts are provided on the side of the pressure pin body opposite to the welding strip.

9. The welding strip pressing fixture according to claim 1, characterized in that: A plurality of grid patterns are arranged on the outer surface of the anti-slip pad.

10. A string welding machine, characterized in that: It includes a jig conveying device, which performs a conveying operation on the welding ribbon pressing tool jig according to any one of claims 1 to 9; It also includes a cell conveying device, a welding ribbon loading device, a cell fixture handling device, a welding ribbon laying device, a cell welding ribbon transmission device, a welding device, a fixture handling device and a string output device; Among them, the battery cell conveying device conveys the battery cells required for battery string welding; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the battery cell jig conveying device conveys the battery cells at the output end of the battery cell conveying device and the solder tape pressing tooling jig at the output end of the jig conveying device to the input end of the battery cell solder tape transmission device; the solder tape laying device lays the solder tape on the battery cells on the battery cell solder tape transmission device; the battery cell solder tape transmission device conveys the battery cells, solder tape and the solder tape pressing tooling jig pressed on the solder tape together and passes The welding device; the welding device is arranged between the input end and the output end of the battery cell welding ribbon transmission device, and it welds the battery cells and welding ribbons on the battery cell welding ribbon transmission device; the jig transporting device transports the welding ribbon pressing tooling jig from the output end of the battery cell welding ribbon transmission device to the input end of the jig conveying device; the jig conveying device transports the reflowed welding ribbon pressing tooling jig from the input end of the jig conveying device to its output end; the string output device performs string processing on the battery strings obtained by welding by the welding device and outputs battery strings of predetermined length.

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