Automatic welding system

Abstract

The present invention provides an automatic welding system, comprising: at least two welding stations; at least two conveying systems, the conveying systems are arranged in a one-to-one correspondence with the welding stations, the conveying systems are used to convey the workpieces to be welded to the welding stations, and convey the welded finished products out after welding; a welding assembly, which is located beside each welding station and can reciprocate between each welding station, and the welding assembly is used to weld the workpieces to be welded. The automatic welding system provided by the present invention realizes uninterrupted operation of the welding assembly through the arrangement of at least two welding stations and at least two conveying systems, thereby improving the working efficiency of the automatic welding system.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and more specifically, relates to an automatic welding system. Background Art

[0002] At present, when performing ultrasonic gold wire ball welding on TO-CAN (transistor package) products, a material box is generally used to carry the material strip, the material strip carries the product, the feeding and pushing system loads the material, the pulling system pulls the material strip to the welding station, the platen heating system heats the transistor package, and the welding system performs ultrasonic gold wire ball welding on the transistor package product. About 3 products are pulled at a time, and after the wire welding of 3 products is completed, the material is pulled again for the next 3 products. Pulling and gold wire ball welding are performed alternately, and the time spent on pulling is approximately equal to the wire welding time of 3 products. In this way, about half of the time of the gold wire ball welding process is spent on pulling, which seriously affects production efficiency. Summary of the invention

[0003] The object of the present invention is to provide an automatic welding system to solve the technical problem in the prior art that the production efficiency is low due to the alternating process of drawing and welding.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide an automatic welding system, comprising:

[0005] At least two welding stations;

[0006] At least two conveying systems, each of which is arranged in a one-to-one correspondence with the welding station, and is used to convey the workpiece to be welded to the welding station and convey the welded finished product out;

[0007] The welding assembly is located beside each of the welding stations and can reciprocate between the welding stations. The welding assembly is used to weld the parts to be welded.

[0008] Furthermore, the conveying system includes a material tool, and the material tool is provided with a plurality of positioning grooves for positioning the workpiece to be welded and the welded product.

[0009] Furthermore, the automatic welding system further comprises a base frame, and the welding station is arranged on the base frame; the conveying system further comprises:

[0010] A tool input track is provided on the base frame and is located at one side of the welding station;

[0011] A tool output track is provided on the base frame and is located on the other side of the welding station;

[0012] The material pulling assembly is arranged on the base frame, and is used to transport the material tool from the material tool input track to the welding station, and transport the material tool from the welding station to the material tool output track.

[0013] Furthermore, the material pulling assembly includes a motor arranged on the base frame, a screw rod connected to the motor, a nut arranged on the screw rod, a first clamping structure arranged on the nut and used to clamp the material tool, and a second clamping structure connected to the first clamping structure and used to clamp the material tool.

[0014] Furthermore, a heating component for heating the workpiece to be welded for welding by the welding component is provided between the material input track and the material output track.

[0015] Furthermore, the heating assembly includes a heating seat provided on the base frame and used to place the tool, a heating element provided on the heating seat and used to heat the workpiece to be welded, and a pressing structure provided on the base frame and used to press the tool; the welding station is located on the heating seat.

[0016] Furthermore, the conveying system also includes a material box, on which a plurality of positioning parts arranged in parallel and used for placing the material tools are provided.

[0017] Furthermore, the conveying system also includes a material box storage bin arranged at the input end of the material tool input track, and a loading component arranged on the material box storage bin and used to push the material tool in the material box into the material tool input track.

[0018] Furthermore, the material box storage bin has:

[0019] A material box inlet, used for adding the material box filled with the material tool;

[0020] A material box outlet, used for delivering the empty material box;

[0021] The material tool outlet is used for the loading assembly to push the material tool into the material tool input track.

[0022] Furthermore, the automatic welding system also includes a control circuit, which is electrically connected to the welding assembly, the material pulling assembly, the heating assembly and the material loading assembly respectively.

[0023] The beneficial effect of the automatic welding system provided by the present invention is that: compared with the prior art, the automatic welding system of the present invention is provided with at least two welding stations and at least two conveying systems, the welding stations are arranged in parallel, the conveying systems are arranged one-to-one with the welding stations, and the welding assembly can reciprocate between the welding stations. In this way, when the welding assembly is welding at one of the welding stations, the parts to be welded at other welding stations are already in place. After the welding assembly has welded the parts to be welded at one of the welding stations, it directly moves to the next welding station for welding without waiting, and the welding assembly can work uninterruptedly, thereby saving the waiting time of the welding assembly, thereby improving the working efficiency of the entire automatic welding system and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 A schematic diagram of the structure of an automatic welding system provided by an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure of the middle tool input track, welding station and tool output track;

[0027] Figure 3 for Figure 2 A schematic diagram of the structure of the pressing material structure;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure of the heating component in FIG.

[0029] Figure 5 for Figure 1 A schematic diagram of the structure of the double-track material box;

[0030] Figure 6 for Figure 1 Schematic diagram of the structure of the middle material box storage bin and the material box frame;

[0031] Figure 7 for Figure 6 Schematic diagram of the structure of the feeding component.

[0032] Among them, the reference numerals in the figure are:

[0033] 100-transportation system; 110-material tool input track; 120-material tool output track; 130-material pulling assembly; 131-motor; 132-screw rod; 133-nut; 134-adapter plate; 135-first clamping structure; 136-connecting plate; 137-second clamping structure; 138-slide rail; 140-material tool; 141-positioning groove; 150-material box; 15-double-track material box; 151-positioning part; 152-front side plate; 153-rear side plate; 154-upper top plate; 155-lower bottom plate; 160-material box storage bin; 161-material box entrance; 162-material box exit; 163-material tool exit; 170-feeding assembly; 171-fixed plate; 172-second cylinder; 173-push plate; 174-horizontal slide rail; 175-horizontal slider; 176-sensing plate; 177-sensing sensor; 178-push rod; 180-material box output bin; 190-material box frame; 200-welding station; 300-parts to be welded; 400-finished welded product; 500-base frame; 510-base plate; 520-vertical plate; 530-mounting plate; 540-mounting seat; 600-heating assembly; 610-heating seat; 611-mounting slot; 612-accommodating slot; 620-pressing structure; 621-first cylinder; 622-pressing plate; 700-base; 710-first silo mounting plate; 720-second silo mounting plate; 730-vertical guide rail; 1351-slider; 1352-upper clamp; 1353-lower clamp; 1354-electromagnet; 6221-through slot. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] Please also read Figure 1 and Figure 2 , the automatic welding system provided by the present invention is now described. The automatic welding system includes a welding assembly (not shown in the figure), two welding stations 200 and two conveying systems 100, the two welding stations 200 are arranged in parallel, the two conveying systems 100 are arranged in a one-to-one correspondence with the two welding stations 200, the conveying system 100 is used to convey the workpiece 300 to the welding station 200 and convey the welded finished product 400 out, the welding assembly is used to weld the workpiece 300 to the welding station 200 into the welded finished product 400, the welding assembly is located beside each welding station 200, and can reciprocate between each welding station 200. Of course, in other embodiments of the present invention, according to actual conditions and specific requirements, the above-mentioned automatic welding system can also include three, four or at least two welding stations 200, and three, four or at least two conveying systems 100, and each welding station 200 corresponds to each conveying system 100, which is not the only example here.

[0039] The automatic welding system in this embodiment is used for transistor package (foreign name: TO-CAN), which electrically connects the two pins of the transistor package by welding a gold wire ball between the two pins of the transistor package, that is, the welded part 300 in this embodiment is an unfinished product of the transistor package, and the welded finished product 400 is a finished product of the transistor package. Of course, in other embodiments of the present invention, according to actual conditions and specific requirements, the above automatic welding system can also be used for welding other products, such as electrical connectors, electrical components, etc., which is not limited here.

[0040] When the automatic welding system in this embodiment is working, please refer to Figure 1 , the workpiece 300 to be welded is transported to the welding station 200 on the front side through the front conveying system 100, and then the welding assembly is welded to the front workpiece 300 to be welded, and at the same time, the rear conveying system 100 transports the workpiece 300 to be welded thereon to the welding station 200 on the rear side, and the welding assembly moves directly to the welding station 200 on the rear side after welding at the front station, and at the same time, the front conveying system 100 transports the workpiece 300 to be welded thereon to the welding station 200 on the front side, and so on. When there are multiple welding stations 200, the working principle is the same.

[0041] Compared with the prior art, the automatic welding system provided by the present invention is characterized by the provision of at least two welding stations 200 and at least two conveying systems 100. The welding stations 200 are arranged in parallel, and the conveying systems 100 are arranged in a one-to-one correspondence with the welding stations 200. Moreover, the welding assembly can reciprocate between the welding stations 200. In this way, when the welding assembly is welded at one of the welding stations 200, the parts to be welded at other welding stations 200 are already in place. After the welding, the welding assembly directly moves to the next welding station 200 for welding without waiting, and the welding assembly can work uninterruptedly, thereby saving the waiting time of the welding assembly, thereby improving the working efficiency of the entire automatic welding system and saving costs.

[0042] For further information, see Figure 1 and Figure 2 As a specific embodiment of the automatic welding system provided by the present invention, the conveying system 100 includes a material tool 140, and a plurality of positioning grooves 141 are provided on the material tool 140, and the positioning grooves 141 are used to position the workpiece 300 to be welded and the welded finished product 400. In this embodiment, the material tool 140 is in a long strip state, and 25 positioning grooves 141 are provided on the material tool 140, and the positioning grooves 141 are stepped holes, and the transistor-type package is arranged in the stepped holes.

[0043] For further information, see Figure 2 As a specific embodiment of the automatic welding system provided by the present invention, the automatic welding system further includes a base frame 500, and the two welding stations 200 are both arranged on the base frame 500. The conveying system 100 further includes: a material input track 110, a material output track 120 and a material pulling assembly 130, wherein the material input track 110 is arranged on the base frame 500 and located on one side of the welding station 200, and the material output track 120 is arranged on the base frame 500 and located on the other side of the welding station 200, wherein one side of the welding station 200 is Figure 2 The left side of the welding station 200 is Figure 2 On the right side of the drawing, the material pulling assembly 130 is arranged on the base frame 500. When working, the material pulling assembly 130 is first used to pull the material jig 140 from the material jig input track 110 into the welding station 200, so that the to-be-welded part 300 in the material jig 140 can be welded by the welding assembly, and then the material pulling assembly 130 transports the welded finished product 400 to the material jig output track 120.

[0044] For further information, see Figure 2As a specific embodiment of the automatic welding system provided by the present invention, the above-mentioned pulling assembly 130 is a ball screw structure. Specifically, the pulling assembly 130 includes a motor 131, a screw 132, a nut 133, an adapter plate 134, a first clamping structure 135, a connecting plate 136, and a second clamping structure 137. The motor 131 is arranged on the base frame 500, the screw 132 is connected to the output shaft of the motor 131, the nut 133 is arranged on the screw 132, the first clamping structure 135 is arranged on the nut 133 through the adapter plate 134 and is used to clamp the material 140, and the second clamping structure 137 is connected to the first clamping structure 135 through the connecting plate 136 and is used to clamp the material 140. In this embodiment, the first clamping structure 135 is used to clamp the material 140 located on the material output track 120, and the second clamping structure 137 is used to clamp the material 140 located on the material input track 110. During operation, the motor 131 rotates to drive the screw rod 132 to rotate, and the screw rod 132 drives the nut 133 to move on the screw rod 132. At the same time, the nut 133, the adapter plate 134, the first clamping structure 135, the connecting plate 136 and the second clamping structure 137 are all fixedly connected, so the adapter plate 134, the first clamping structure 135, the connecting plate 136 and the second clamping structure 137 move synchronously with the nut 133, so that the first clamping structure 135 can clamp the material 140 to move on the material output track 120, and the second clamping structure 137 can clamp the material 140 to move on the material input track 110.

[0045] Furthermore, a slide rail 138 is provided on the above-mentioned base frame 500, and the above-mentioned first clamping structure 135 is the same as the second clamping structure 137, and the first clamping structure 135 includes a slider 1351, an upper clamping plate 1352, a lower clamping plate 1353 and an electromagnet 1354, the slider 1351 is slidably provided on the slide rail 138, the upper clamping plate 1352, the lower clamping plate 1353 and the electromagnet 1354 are all provided on the slider 1351, and the electromagnet 1354 can be energized to attract the upper clamping plate 1352 and the lower clamping plate 1353 to clamp the material tool 140. When the material pulling assembly 130 in this embodiment is working, when it is necessary to pull the material 140 located on the material input track 110 to the welding station 200, the electromagnet 1354 on the second clamping structure 137 can be energized so that the second clamping structure 135 can clamp the material 140 and move it; when it is necessary to move the material 140 located on the welding station 200 to the material output track 120, the electromagnet 1354 on the first clamping structure 135 can be energized so that the first clamping structure 135 can clamp the material 140 and move it.

[0046] For details, please refer to Figure 2In this embodiment, the above-mentioned base frame 500 includes a base plate 510, four vertical plates 520 and two mounting plates 530. The base plate 510 is flat and is used to be placed on a work platform. The four vertical plates 520 are respectively fixed vertically on the base plate 510 and surround a rectangle. Each mounting plate 530 is respectively arranged on two vertical plates 520 arranged in parallel. The two mounting plates 530 are arranged in parallel. The structure on each conveying system 100 is correspondingly arranged on a mounting plate 530. Specifically, the motor 131, the slide rail 138, the material input track 110 and the material output track 120 are all arranged on the mounting plate 530.

[0047] For further information, see Figure 2 and Figure 4 As a specific embodiment of the automatic welding system provided by the present invention, a heating component 600 is further provided between the above-mentioned material input track 110 and the material output track 120, that is, each welding station 200 is correspondingly provided with a heating component 600. In this embodiment, two heating components 600 are provided. The heating component 600 is used to heat the workpiece 300 to be welded for welding by the welding component. During welding, the workpiece 300 to be welded is heated by the heating component 600 and welded by the welding component at the same time.

[0048] For further information, see Figure 4 As a specific embodiment of the automatic welding system provided by the present invention, the above-mentioned heating assembly 600 includes a heating seat 610, a heating element (not shown in the figure) and a pressing structure 620. The heating seat 610 is arranged on the base frame 500 and is used to place the material tool 140. The heating element is arranged on the heating seat 610 and is used to heat the workpiece 300 to be welded. The pressing structure 620 is arranged on the base frame 500 and is used to press the material tool 140. The welding station 200 is located on the heating seat 610. Specifically, the above-mentioned base frame 500 also includes a mounting seat 540, which is vertically mounted on the base plate 510, a heating seat 610 is arranged at the top of the mounting seat 540, a pressing structure 620 is arranged on the mounting seat 540, and a mounting groove 611 which is the same as the material input track 110 and the material output track 120 is opened on the heating seat 610, the material 140 is arranged in the mounting groove 611, and a receiving groove 612 is arranged on the side of the heating seat 610, and the heating element is a heating rod, which is installed in the receiving groove 612 and can heat the workpiece 300 to be welded.

[0049] Specifically, the material pressing structure 620 includes a first cylinder 621 disposed on the mounting seat 540 , and a pressing plate 622 connected to the first cylinder 621 . The pressing plate 622 is pressed onto the material tool 140 by the first cylinder 621 .

[0050] Specifically, in this embodiment, please refer to Figure 2, the length of the pressing plate 622 is less than the length of the material tool 140, and a through slot 6221 is provided on the pressing plate 622 at a position corresponding to the workpiece 300 to be welded. The pressing plate 622 can press a part of the material tool 140 at one time and make five workpieces 300 to be welded correspondingly located under the through slot 6221, that is, the material tool 140 will be moved once by the material pulling assembly 130 for each welding of five workpieces 300 to be welded. Of course, in other embodiments of the present invention, according to actual conditions and specific requirements, the through slot 6221 can also correspond to four or six workpieces 300 to be welded at one time, and the material tool 140 can also prevent 20 or 30 workpieces to be welded, which is not the only limitation here.

[0051] For further information, see Figure 5 and Figure 6 As a specific embodiment of the automatic welding system provided by the present invention, the conveying system 100 further includes a material box 150, the material box 150 is used to place the material tool 140, and the material box 150 is provided with a plurality of positioning parts 151 arranged in parallel, and the material tool 140 is placed in the positioning parts 151. In this embodiment, the material box 150 is formed by a front side plate 152 and a rear side plate 153 arranged oppositely, and the front side plate 152 and the rear side plate 153 are connected by an upper top plate 154 and a lower bottom plate 155, and the inner side walls of the front side plate 152 and the rear side plate 153 are provided with a plurality of grooves arranged in parallel, and the grooves on the front side plate 152 and the rear side plate 153 are arranged oppositely one by one, and the positioning part 151 is composed of two oppositely arranged grooves. In the present embodiment, the front side plate 152 and the rear side plate 153 are plates with a thickness of 4 mm, and a plurality of through holes are formed on the front side plate 152 and the rear side plate 153 , thereby reducing the weight of the entire material box 150 .

[0052] Preferably, in this embodiment, the groove on the front side plate 152 is larger than the groove on the rear side plate 153. Correspondingly, the thicknesses of the two opposite sides of the material tool 140 are larger and smaller. In this way, when the staff places the material tool 140 in the material box 150, corresponding settings can be made according to the size of the groove and the thickness of the material tool 140, thereby preventing the material tool 140 from being installed in the reverse direction, thereby achieving a fool-proof effect.

[0053] Preferably, in this embodiment, please refer to Figure 5 , the material box 150 is provided with 8 positioning parts 151, that is, 8 material tools 140 can be placed on one material box 150. Of course, in other embodiments of the present invention, according to actual conditions and specific requirements, the material box 150 can also be provided with 4 or 6 positioning parts 151, which is not limited here.

[0054] Preferably, in this embodiment, please refer to Figure 5In order to save materials, the two adjacent material boxes 150 share an upper top plate 154 and a lower bottom plate 155, that is, the two material boxes 150 include two front side plates 152, two rear side plates 153, an upper top plate 154 and a lower top plate. The two front side plates 152 and the two rear side plates 153 are arranged in parallel, the upper top plate 154 is arranged at the top, and the lower top plate is arranged at the bottom, forming a double-track material box 15. 16 material tools 140 can be placed in a double-track material box 15, 8 in each row, and can be transported synchronously.

[0055] For further information, see Figure 6 As a specific embodiment of the automatic welding system provided by the present invention, the above-mentioned conveying system also includes a material box storage bin 160 and a loading assembly 170. The material box storage bin 160 is arranged at the input end of the material tool input track 110. The material box storage bin 160 is used to temporarily store the material box 150. The loading assembly 170 is arranged on the material box storage bin 160. The loading assembly 170 is used to push the material tool 140 in the material box 150 into the material tool input track 110.

[0056] Specifically, the above-mentioned conveying system 100 also includes a material box output bin 180 and a material unloading component. The material box output bin 180 is arranged at the output end of the material tool output track 120. The material tool 140 pushing component is arranged in the material box output bin 180, and is used to push the material tool 140 into the material box 150. Specifically, the material box output 180 has the same structural principle as the material box storage bin 160, and the material unloading component has the same structural principle as the loading component 170. The material box storage bin 160 and the loading component 170 are used as examples for explanation below.

[0057] For further information, see Figure 6 As a specific embodiment of the automatic welding system provided by the present invention, the above-mentioned material box storage bin 160 has a material box inlet 161, a material box outlet 162 and a material tool outlet 163. The material box inlet 161 is used to add a material box 150 filled with a material tool 140, the material box outlet 162 is used to send out an empty material box 150, and the material tool outlet 163 is used for the feeding assembly 170 to push the material tool 140 into the material tool input track 110. Specifically, the material box outlet 162 is connected to a material box frame 190, and a plurality of empty material boxes 150 can be placed in the material box frame 190. The empty material boxes 150 sent from the material box outlet 162 can be placed in the material box frame 190.

[0058] In this embodiment, the above-mentioned material box storage bin 160 is a vertical structure, and in order to correspond to the double-track material box 15, in this embodiment, one material box storage bin 600 can be shared by the material boxes 150 of two conveying systems 100, and two vertically stacked double-track material boxes 15, that is, four small material boxes 150, can be arranged in the material box storage bin 160, and a vertical track is arranged in the material box storage bin 160, and the two double-track material boxes 15 can slide on the vertical track. Of course, in other embodiments of the present invention, according to actual conditions and specific requirements, three, four, or at least two vertically stacked double-track material boxes 15 can be arranged in the above-mentioned material box storage bin 160, and this is not the only limitation here.

[0059] Specifically, in the present embodiment, the automatic welding system further includes a base 700, on which a first silo mounting plate 710 is provided, the first silo mounting plate 710 being connected to a second silo mounting plate 720 via a fixed structure, the first silo mounting plate 710 being arranged in parallel with the second silo mounting plate 720, the first silo mounting plate 710 and the second silo mounting plate 720 being respectively provided with two vertical guide rails 730, the four vertical guide rails 730 enclose the above-mentioned material box storage bin 160, and the loading assembly 170 is arranged on one of the vertical guide rails 730.

[0060] For further information, see Figure 7 As a specific embodiment of the automatic welding system provided by the present invention, the above-mentioned feeding assembly 170 includes a fixed plate 171, a second cylinder 172, a push plate 173, a horizontal slide rail 174, a horizontal slider 175, a sensing plate 176, a sensing sensor 177 and a push rod 178. The fixed plate 171 is installed on the material box storage bin 160, the second cylinder 172 and the horizontal slide rail 174 are arranged on the fixed plate 171, the horizontal slider 175 is slidably arranged on the horizontal slide rail 174, the sensing plate 176 is arranged on the horizontal slider 175, the sensing sensor 177 and the push rod 178 are arranged on the horizontal sensing plate 176, and the push plate 173 is connected to the second cylinder 172. Between the output end and the inductive sensor 177, when working, the second cylinder 172 can drive the push rod 178 to push the material 140 in the material box 150 to the material input track 110, and the inductive sensor 177 can sense the position of the push rod 178, thereby preventing the loading component 170 from interfering with the material box storage bin 160 during operation.

[0061] For further information, see Figure 6 As a specific embodiment of the automatic welding system provided by the present invention, the above-mentioned automatic welding system also includes a material box pushing component for pushing the empty material box 150 into the material box frame 190, and the material box pushing component is also a ball screw structure.

[0062] Furthermore, as a specific embodiment of the automatic welding system provided by the present invention, the automatic welding system also includes a control circuit, which is electrically connected to the welding component, the pulling component 130, the heating component 600 and the loading component 170, respectively, and the working sequence of each component is controlled by PLC programming. This is a prior art and will not be repeated here.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Automatic welding system, characterized in that, include: At least two welding stations; At least two conveying systems, each of which is arranged in a one-to-one correspondence with the welding station, and is used to convey the workpiece to be welded to the welding station and convey the welded finished product out; A welding assembly, located beside each of the welding stations and capable of reciprocating between the welding stations, the welding assembly being used to weld the workpieces to be welded; The conveying system includes a material tool; The automatic welding system further comprises a base frame, and the welding station is arranged on the base frame; the conveying system further comprises: A tool input track is provided on the base frame and is located at one side of the welding station; A tool output track is provided on the base frame and is located on the other side of the welding station; A material pulling assembly, arranged on the base frame, for conveying the material tool from the material tool input track to the welding station, and conveying the material tool from the welding station to the material tool output track; The material pulling assembly includes a motor disposed on the base frame, a screw connected to the motor, a nut disposed on the screw, a first clamping structure disposed on the nut and used to clamp the material tool on the material tool output track, and a second clamping structure fixedly connected to the first clamping structure and used to clamp the material tool on the material tool input track; The conveying system further comprises a material box, on which a plurality of positioning parts arranged in parallel and used for placing the material tools are provided; Two adjacent material boxes share an upper top plate and a lower bottom plate, and the two material boxes also include two front side plates and two rear side plates, the two front side plates and the two rear side plates are arranged in parallel, the upper top plate is arranged at the top, and the lower bottom plate is arranged at the bottom, forming a double-track material box; wherein, the inner side walls of the front side plates and the rear side plates are provided with a plurality of grooves arranged in parallel, and the grooves on the front side plates and the rear side plates are arranged opposite to each other one by one, the positioning portion is composed of two oppositely arranged grooves, and the front side plates and the rear side plates are provided with a plurality of through holes; wherein, the groove on the front side plate is larger than the groove on the rear side plate, and correspondingly, the thickness of the opposite sides of the material tool is one large and one small; The conveying system also includes a material box storage bin provided at the input end of the material tool input track; The conveying system further comprises a loading assembly disposed on the material box storage bin and used for pushing the material tool in the material box into the material tool input track; The material box storage bin has: A material box inlet, used for adding the material box filled with the material tool; A material box outlet, used for delivering the empty material box; A material tool outlet, used for the loading assembly to push the material tool into the material tool input track; The material box storage bin is a vertical structure, and one material box storage bin is shared by the material boxes of the two conveying systems. Two vertically stacked double-track material boxes are arranged in the material box storage bin, and a vertical track is arranged in the material box storage bin, and the two double-track material boxes slide on the vertical track; The automatic welding system also includes a base, on which a first silo mounting plate is provided, the first silo mounting plate is connected to a second silo mounting plate via a fixed structure, the first silo mounting plate and the second silo mounting plate are arranged in parallel, the first silo mounting plate and the second silo mounting are respectively provided with two vertical guide rails, and the four vertical guide rails enclose the material box storage bin.

2. The automatic welding system according to claim 1, characterized in that: The material tool is provided with a plurality of positioning grooves for positioning the workpiece to be welded and the welded product.

3. The automatic welding system according to claim 1, characterized in that: A heating component for heating the workpiece to be welded for welding by the welding component is also provided between the material input track and the material output track.

4. The automatic welding system according to claim 3, characterized in that: The heating assembly includes a heating seat disposed on the base frame and used to place the tool, a heating element disposed on the heating seat and used to heat the workpiece to be welded, and a pressing structure disposed on the base frame and used to press the tool; the welding station is located on the heating seat.

5. The automatic welding system according to claim 3, characterized in that: The automatic welding system also includes a control circuit, which is electrically connected to the welding component, the material pulling component, the heating component and the material loading component respectively.

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