Busbar welding production line and working method thereof

Abstract

The application discloses a busbar welding production line and a working method, which comprises a conveying mechanism and at least one placing tool for placing products, the placing tool is connected with the chain of the conveying mechanism and is matched with the track on the conveying mechanism through a group of moving wheels; a high-frequency welding machine is arranged outside the conveying mechanism and is connected with the frame in a lifting mode; two groups of high-frequency inductor output components are arranged on the high-frequency welding machine, one high-frequency inductor output component is used for preheating, and the other high-frequency inductor output component is used for welding; a pressing mechanism is arranged behind the welding station, when working, a workpiece is preheated through one high-frequency inductor output component, when the temperature of the workpiece reaches a preset welding temperature, the workpiece is welded through the high-frequency inductor output component, and the workpiece is pressed after welding through the pressing mechanism. Through optimization of the wire body, automatic feeding is realized, the workpiece is preheated in advance, the waiting time of the welded workpiece is reduced, and the whole workpiece machining cycle is shortened.

Description

Technical Field

[0001] This invention belongs to the field of busbar welding technology, and specifically relates to a busbar welding production line and its working method. Background Technology

[0002] After the busbar is formed, it needs to be welded to the conductive column according to its application scenario in electrical equipment to achieve electrical conduction and mechanical fixation. After the workpiece is assembled, it needs to be manually transferred to the welding station, which consumes a lot of time and seriously affects the processing cycle of the workpiece. In addition, in the current industry, most welding transportation is carried out by positioning the workpiece and realizing the transfer of the workpiece. Although the existing tooling can improve the positioning accuracy and welding efficiency, the tooling can only be adapted to specific specifications of busbars and columns. When the product model changes, the shape of the busbar or the length of the column is adjusted, the original tooling cannot be reused. Enterprises need to customize and develop special tooling for different products. The poor adaptability of the tooling not only increases the development and manufacturing cost of the tooling. In addition, most existing welding equipment has only one welding port. The welding is carried out after preheating to the welding temperature through one port. The whole process takes a long time. During this process, transportation and welding are stopped. The whole process consumes a lot of time and seriously affects the production cycle of the workpiece. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the above shortcomings, the purpose of this invention is to provide a busbar welding production line with a reasonable structural design, optimized line body, automatic feeding, and preheating of the workpiece to be welded position by setting a preheating high-frequency sensor output component, thereby reducing the waiting time of the workpiece to be welded, improving its production efficiency, and shortening the processing cycle of the entire workpiece.

[0004] Technical solution: In order to achieve the above objectives, the present invention provides a busbar welding production line, including: a conveying mechanism and at least one placement fixture for placing products, wherein the placement fixture is connected to the chain of the conveying mechanism and cooperates with the track on the conveying mechanism through a set of moving wheels; At least one high-frequency welding machine is located outside the conveying mechanism and is connected to the frame by a lifting mechanism; and the high-frequency welding machine is equipped with two sets of high-frequency sensor output components, the high-frequency sensor output components away from the wire feeding device are used for preheating, and the high-frequency sensor output components close to the wire feeding device are used for welding. The system also includes a pressing mechanism located behind the welding station. During operation, the conveyor mechanism drives the placement fixture along a track via a chain. When the workpiece reaches the high-frequency welding machine, it is preheated by a high-frequency inductor output component located away from the wire feeding device. After preheating to the required welding temperature, the conveyor mechanism continues to transport the preheated workpiece forward. When it reaches the area below the high-frequency inductor output component near the wire feeding device, a temperature detection device monitors the temperature of the workpiece's welding area. If the temperature reaches the preset welding temperature, the high-frequency inductor output component performs welding. If the temperature does not meet the welding requirements, it is preheated to the required welding temperature before welding. After welding, the workpiece is pressed together by the pressing mechanism. This invention optimizes the production line to achieve automatic feeding and preheats the workpiece's welding position by using a preheating high-frequency inductor output component, reducing the waiting time for welding workpieces, improving production efficiency, shortening the overall workpiece processing cycle, and better meeting production needs.

[0005] Furthermore, the conveying mechanism includes a conveying mounting frame, on which a main drive mechanism and a driven drive mechanism are provided. The main drive mechanism and the driven drive mechanism are connected by a chain drive, and the track is located on both sides of the conveying mounting frame.

[0006] In addition, it includes at least one limiting mechanism for restricting the movement of the tooling, the limiting mechanism being mounted on the conveying mechanism.

[0007] Furthermore, the limiting mechanism includes a set of mounting bases, a drive rod, and a limiting drive mechanism. The mounting base is located on one side of the conveying mounting frame, the drive rod is located in the mounting hole of the mounting base, and at least one limiting component is provided on it. A locking retaining ring is also provided on the side of the drive rod located on the mounting base. The limit drive mechanism is mounted on the conveyor mounting frame, and its output end is connected to the drive swing arm through the drive connector. The end of the drive swing arm away from the drive connector is connected to the drive rod.

[0008] Preferably, the placement fixture includes a fixture base plate, the fixture base plate is provided with a support mechanism for placing the product, and the fixture base plate is provided with at least one positioning mechanism for positioning the product on the outside of the support mechanism.

[0009] More preferably, the support mechanism includes a support base and a support block. The support base has a positioning hole and an installation hole. The support block is installed in the installation hole and is used to support the column on the workpiece located in the positioning hole.

[0010] The positioning mechanism includes a positioning bracket, a positioning component, and a spring. The positioning bracket is mounted on a tooling base plate and has a mounting groove. One end of the positioning component is located in the mounting groove and is hinged to the positioning bracket. One end of the spring is connected to the positioning bracket, and the other end is connected to the positioning component.

[0011] A moving mechanism is provided below the tooling base plate, and the moving mechanism cooperates with the track; It also includes a transmission connection assembly, one end of which is connected to the moving mechanism, and the other end is provided with a set of waist holes. The connection assembly is connected to the chain through a set of connecting pins, and the pins are provided with grooves. An elastic retaining ring is provided in the grooves for limiting the movement.

[0012] The placement fixture also includes a limiting block, which is located on the outside of the moving mechanism at the bottom of the placement fixture. The limiting block has a limiting groove, and the limiting part on the limiting component cooperates with the limiting groove.

[0013] It also includes a wire feeding device, which includes a wire feeding mechanism for feeding wire and a wire feeding movement adjustment module for adjusting the lateral and longitudinal positions of the wire feeding mechanism. The wire feeding movement adjustment module is located at the wire feeding position of the frame and on one side of the conveying mechanism. The wire feeding mechanism is mounted on the wire feeding movement adjustment module and cooperates with the second high-frequency sensor output component.

[0014] As can be seen from the above technical solution, the present invention has the following beneficial effects: 1. This invention optimizes the production line by using a conveyor mechanism and chain drive to transport the connected fixtures, reducing workpiece transfer time, saving time and effort, and allowing the workpieces to move according to actual production needs. It also achieves automatic feeding and preheats the workpieces to be welded by setting a preheating high-frequency sensor output component, reducing the waiting time for welding workpieces, improving production efficiency, shortening the overall workpiece processing cycle, and better meeting production needs.

[0015] 2. The chain drive can move the tooling along the track, enabling automatic transfer, saving time and effort, and further shortening the turnaround time.

[0016] 3. The limiting mechanism can restrict the position of the tooling, preventing it from moving during workpiece processing. The limiting drive mechanism operates by driving the drive arm via the drive connector. During the movement of the drive arm, the drive rod moves along with it. As the drive rod moves, the limiting component located on it moves to the designated position of the tooling, limiting its movement and effectively improving the stability of workpiece processing.

[0017] 4. The workpiece is placed on the tooling and the support mechanism provides excellent support. The positioning holes of the support mechanism can position the conductive column, and the workpiece is repositioned on the outside by the positioning mechanism. This provides excellent support and positioning for the workpiece, preventing it from moving during processing and improving its stability.

[0018] 5. In this invention, multiple positioning mechanisms are set on the tooling base plate, which can position the busbars in different directions. The positioning mechanism consists of a positioning bracket, a positioning component and a spring. The spring allows it to achieve adaptive positioning according to the specific structure of the busbar, further improving its adaptability and applicability, enhancing its compatibility, and enabling it to meet the positioning needs of more product models. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the busbar welding production line described in this invention; Figure 2 This is a structural diagram of the busbar welding production line in this invention from another perspective; Figure 3 This is a schematic diagram of the workpiece conveying mechanism in this invention; Figure 4 This is a schematic diagram of the structure of the other side of the workpiece conveying mechanism described in this invention; Figure 5 This is a partial installation schematic diagram of the limiting mechanism in this invention; Figure 6 This is a partial installation diagram of the limiting block in this invention; Figure 7 This is a schematic diagram of the installation of the rotary limiting mechanism in this invention; Figure 8 This is a schematic diagram of the positioning fixture used for workpiece processing in this invention; Figure 9 This is a side view of the positioning fixture used for workpiece machining in this invention; Figure 10 This is a partially enlarged view of the positioning fixture used for workpiece processing in this invention; Figure 11 This is a schematic diagram of the positioning fixture for workpiece processing without a workpiece in this invention; Figure 12 This is a schematic diagram of a tooling fixture used in this invention to place a product. Figure 13 This is a schematic diagram showing another product placed in this invention; Figure 14 This is a schematic diagram showing the placement of another product in this invention; Figure 15 In this invention and Figure 9The structural diagram of the product corresponding to the tooling located at the top; Figure 16 This is a schematic diagram of the installation of the high-frequency welding machine in this invention; Figure 17 This is a schematic diagram of the wire feeding device in this invention; Figure 18 This is a schematic diagram of the wire feeding device and the crimping device in this invention. Detailed Implementation

[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. Example

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] It should be noted that in this embodiment, multiple products are placed on some of the fixtures at the same time. This is to demonstrate the positioning effect of three positioning mechanisms at different positions on different product models. It is conceivable that each fixture can only place one product at a time.

[0023] In addition, the formed workpiece includes a busbar and a conductive column. The busbar has a through hole, and the upper part of the conductive column is inserted into the through hole of the busbar.

[0024] like Figure 1 and Figure 2 The busbar welding production line shown includes: a conveying mechanism 1 and at least one placement fixture 2 for placing products. The placement fixture 2 is connected to the chain 11 of the conveying mechanism 1 and cooperates with the track 12 on the conveying mechanism 1 through a set of moving wheels 243. At least one high-frequency welding machine 3 is located outside the conveying mechanism 1 and is connected to the frame by a lifting mechanism; and the high-frequency welding machine 3 is provided with two sets of high-frequency sensor output components, the high-frequency sensor output components away from the wire feeding device 4 are used for preheating, and the high-frequency sensor output components close to the wire feeding device 4 are used for welding. It also includes a pressing mechanism 5, which is located behind the welding station. During operation, the chain in the conveying mechanism 1 drives the placement fixture 2 to run along the track 12. When the workpiece reaches the position of the high-frequency welding machine 3, it is first preheated by the high-frequency inductor output component away from the wire feeding device 4. After preheating to the required welding temperature, the conveying mechanism 1 continues to convey the preheated workpiece forward. When it reaches the area below the high-frequency inductor output component near the wire feeding device 4, the temperature detection device detects the temperature of the part of the workpiece to be welded. When the temperature reaches the preset welding temperature, the high-frequency inductor output component welds it. After welding, it is pressed together by the pressing mechanism 5. Figure 3 and Figure 4 The conveying mechanism 1 shown includes a conveying mounting frame 101, on which a main drive mechanism 102 and a driven drive mechanism 103 are provided. The main drive mechanism 102 and the driven drive mechanism 103 are connected by a chain 11. The track 12 is located on both sides of the conveying mounting frame 101.

[0025] It also includes at least one limiting mechanism 13 for restricting the movement of the tooling, the limiting mechanism 13 being mounted on the conveying mechanism 1.

[0026] The limiting mechanism 13 includes a set of mounting bases 131, a drive rod 132 and a limiting drive mechanism 133. The mounting base 131 is located on one side of the conveying mounting frame 101. The drive rod 132 is located in the mounting hole of the mounting base 131 and is provided with at least one limiting component 134. A locking ring 135 is also provided on the drive rod 132 on one side of the mounting base 131. The limiting drive mechanism 133 is mounted on the conveying mounting frame 101, and its output end is connected to the drive swing arm 136 through the drive connector 1331. The end of the drive swing arm 136 away from the drive connector 1331 is connected to the drive rod 132.

[0027] In a preferred embodiment, the limiting component 134 includes a limiting swing arm 1341 and a limiting wheel 1342. The limiting swing arm 1341 is mounted on the drive rod 132, and the limiting wheel 1342 is mounted on the limiting swing arm 1341. When the limiting drive mechanism 133 operates, it drives the drive swing arm 1332 through the drive connector 1331. During the movement of the drive swing arm 1332, it drives the drive rod 132 to move together. During the movement of the drive rod 132, the limiting component 134 located on it moves towards the placement fixture until the limiting swing arm 1341 drives the limiting wheel 1342 into the corresponding position of the placement fixture 2 to limit its movement, preventing the fixture from shifting and effectively improving the stability of workpiece processing.

[0028] As shown in the figure, a preferred embodiment of the present invention includes three high-frequency welding machines 3. The first two machines are used entirely for preheating, while the high-frequency sensor output component of the last high-frequency welding machine 3 (closest to the wire feeder) is used for preheating, and the high-frequency sensor output component closer to the wire feeder is used for welding. A temperature detection device is also provided on the frame to detect the temperature. When the temperature detection device detects that the temperature on the workpiece has reached the welding temperature, the high-frequency sensor output component on the high-frequency welding machine 3 used for preheating stops heating. During the welding process, the wire is fed first, followed by the solder. In operation, the connection between the busbar and the conductive body is preheated by the first two high-frequency welding machines. The welding wire first fills and pre-positions the gap between the busbar and the conductive body, and preheats the welding area. Then, solder is fed for fusion and coating. This avoids incomplete welding, voids, and overheating deformation of the base material, while ensuring the coaxiality of the welding position and the consistency of the solder joint formation, improving the strength of the welded structure and the product's adaptability and versatility. It should be noted that during the processing, both the preheating and welding stations are equipped with temperature detection devices to monitor the temperature at the joint. Once the temperature drops below the set welding temperature, the high-frequency sensor output component on the corresponding high-frequency welding machine will start heating.

[0029] Multiple high-frequency welding machines (3 units) and five high-frequency inductor output components for preheating continuously preheat the workpiece to be welded, reducing waiting time at the welding station and further shortening the welding cycle. The high-frequency inductor output components preferably use induction coils. When the equipment is powered on, the coils generate a high-frequency alternating magnetic field. When the busbar or conductive post (metal workpiece) is in this magnetic field, an eddy current effect is generated inside, and the temperature rises rapidly, thus reaching the temperature required for preheating and welding. It is conceivable that other output components that meet the processing requirements can also be selected according to actual needs.

[0030] Example 2 like Figures 8 to 11 The placement fixture 2 shown includes a fixture base plate 21, on which a support mechanism 22 for placing the product is provided, and at least one positioning mechanism 23 for positioning the product is provided on the fixture base plate 21 outside the support mechanism 22.

[0031] like Figure 11 The support mechanism 22 shown includes a support base 221 and a support block 222. The support base 221 is provided with a positioning hole 223 and an installation hole. The support block 222 is installed in the installation hole and is used to support the column on the workpiece located in the positioning hole 223.

[0032] The positioning mechanism 23 includes a positioning bracket 231, a positioning element 232, and a spring 233. The positioning bracket 231 is mounted on the fixture base plate 21 and has a mounting groove. One end of the positioning element 232 is located in the mounting groove and is hinged to the positioning bracket 231. One end of the spring 233 is connected to the positioning bracket 231, and the other end is connected to the positioning element 232. The support column 211 supports the outer extension of the workpiece and prevents it from sagging. When using the fixture, the column to be welded is first placed in the positioning hole 223 of the fixture, and then the busbar of the workpiece is placed on the support base 221. The column passes through the mounting hole of the busbar. If the busbar has an extension, the extension is placed on the corresponding support column 211, and the positioning element 232 in the positioning mechanism 23 abuts against the busbar from the outside to position it.

[0033] A moving mechanism 24 is provided below the tooling base plate 21. The moving mechanism 24 cooperates with the track. The moving mechanism 24 includes a moving mounting base 241. A set of side plates 242 are provided opposite to each other on the moving mounting base 241. A set of moving wheels 243 are provided opposite to each other on the side plates 242. The moving wheels 243 are located opposite to each other on both sides of the track.

[0034] The moving mechanism 24 can drive the tooling base plate and the supporting mechanism, positioning mechanism and workpiece located on it to move; it eliminates the process of manual handling, saves time and effort, and improves production efficiency.

[0035] It also includes a transmission connection assembly 25, one end of which is connected to the moving mechanism 24, and the other end is provided with a set of waist holes. The connection assembly 25 is connected to the chain 11 through a set of connecting pins, and the pins are provided with grooves. The grooves are provided with elastic retaining rings 251 for limiting the movement. In this embodiment, an open elastic retaining ring is preferably used, which not only meets the limitation requirements but also has a certain degree of adaptability. The pins and the transmission connection 25 form a kinematic pair. The waist holes improve the fit between the transmission connection and the chain, enhance its adaptability, and better complete the conveying process.

[0036] The placement fixture 2 also includes a limiting block 26, which is located outside the moving mechanism 24 at the lower part of the placement fixture 2. The limiting block 26 has a limiting groove, and the limiting part on the limiting component 134 cooperates with the limiting groove. During operation, the limiting drive mechanism 133 operates, driving the drive swing arm 1332 through the drive connector 1331. During the operation of the drive swing arm 1332, it will drive the drive rod 132 to move together. During the operation of the drive rod 132, the limiting component 134 located on it will move towards the placement fixture until the limiting swing arm 1341 in the limiting component 134 drives the limiting wheel 1342 into the limiting groove 261 of the placement fixture 2 to limit it, effectively improving the stability of workpiece processing.

[0037] The conveyor mounting frame 101 is also provided with a first limiting member 104 for limiting the running trajectory of the chain 11. The first limiting member 104 is provided with a groove, through which the chain 11 passes and moves within the groove.

[0038] The main transmission mechanism 102 includes a drive motor, the output end of which is provided with a drive shaft, and a main drive gear is provided on the drive shaft. The driven transmission mechanism 103 includes a driven shaft, and a driven gear is provided on the driven shaft. The main drive gear is connected to the driven gear via a chain. The main drive gear and the driven gear are connected by a chain for transmission. During operation, the drive motor drives the main drive gear to rotate. During the rotation of the main drive gear, the chain drives the driven gear to rotate, which in turn drives the driven shaft to rotate, thereby achieving smooth power transmission and completing the transmission operation of the entire machine.

[0039] The transmission mounting frame 101 is equipped with rotation limiting mechanisms 105 located outside the drive shafts of the main transmission mechanism 102 and the driven transmission mechanism 103. Each rotation limiting mechanism 105 includes a limiting mounting block 1051, a limiting mounting connecting rod 1052 on the limiting mounting block 1051, and a limiting block 1053 at one end of the limiting mounting connecting rod 1052. The inner side of the limiting block 1053 is arc-shaped and cooperates with the drive shafts of the main transmission mechanism 102 and the driven transmission mechanism 103. The rotation limiting mechanism 105 serves as a reference for the installation and adjustment of the drive shafts in the main transmission mechanism 102 and the driven transmission mechanism 103, and also limits their rotation range to a certain extent.

[0040] like Figure 17The wire feeding device 4 shown includes a wire feeding mechanism 41 for feeding wire and a wire feeding movement adjustment module 42 for adjusting the lateral and longitudinal positions of the wire feeding mechanism 41. The wire feeding movement adjustment module 42 is located at the wire feeding position of the frame and is located on one side of the conveying mechanism 1. The wire feeding mechanism 42 is mounted on the wire feeding movement adjustment module 41 and cooperates with the second high-frequency sensor output assembly 32. It should be noted that the wire feeding movement adjustment module 42 is a three-axis adjustment module, which can adjust the lateral, longitudinal, and vertical positions of the wire feeding mechanism 41 to better meet the requirements of wire feeding and solder feeding.

[0041] The high-frequency welding machine 3 is provided with a lifting mounting plate 301 below it, and a mounting plate 302 is provided below the lifting mounting plate 301. The lifting mounting plate 301 is connected to the mounting plate 302 through a set of guide components. The mounting plate 302 is also equipped with a lifting drive mechanism 303 for driving the high-frequency welding machine 3 to rise and fall. The output end of the lifting drive mechanism 303 is connected to the lifting mounting plate 301 through a drive block. Furthermore, a limiting block is provided on the lifting mounting plate 301 located outside the high-frequency welding machine 3.

[0042] A water tank 6 is located below the conveying mechanism 1, with handles at both ends and casters for movement at the bottom.

[0043] The working method of the busbar welding production line is as follows: First, the conductive column to be welded is placed in the positioning hole 223 of the support base 221, and the support block 222 is inserted into the mounting hole of the support base 221 and placed at the bottom of the conductive column to support the conductive column. The external part is connected to the support base 221 through the connector. The busbar is then placed on the support base 221, with the upper part of the conductive column located in the mounting hole of the busbar and the extension of the busbar placed on the corresponding support column. The positioning member 232 of the positioning mechanism 23 abuts against the busbar from the outside to position the busbar. During the operation of the main drive mechanism 102 and the driven drive mechanism 103 of the conveying mechanism 1, the chain 11 will move. During the movement of the chain 11, the placement fixture 1 connected to it will move along the track 12. During the conveying process, the placement fixture 1 will pass through the first high-frequency welding machine 3, the second high-frequency welding machine 3 and the third high-frequency welding machine 3 in sequence. The high-frequency sensor output components of the first high-frequency welding machine 3, the second high-frequency welding machine 3 and the third high-frequency welding machine 3, which are far away from the wire feeding mechanism, will preheat the position of the workpiece to be welded. After preheating, when the workpiece reaches the high-frequency sensor output component of the third high-frequency welding machine 3 which is close to the wire feeding mechanism, the temperature detection device will detect the temperature of the part of the workpiece to be welded. When the temperature reaches the preset welding temperature, the high-frequency sensor output component will weld it. If the temperature does not reach the welding requirements, the high-frequency sensor output component of the corresponding high-frequency welding machine will preheat it to the welding requirements temperature before welding. After welding, the workpiece will be pressed by the pressing mechanism 5. After pressing, the product continues to be conveyed by the conveyor mechanism 1, and is cooled by the water tank 6 below. When it reaches the unloading position, the fully cooled workpiece can be unloaded.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. A busbar welding production line, characterized by: include: The conveying mechanism (1) and at least one placement fixture (2) for placing products are connected to the chain (11) of the conveying mechanism (1) and cooperate with the track (12) on the conveying mechanism (1) through a set of moving wheels (243); At least one high-frequency welding machine (3) is located outside the conveying mechanism (1) and is connected to the frame by a lifting mechanism; and the high-frequency welding machine (3) is provided with two sets of high-frequency sensor output components, the high-frequency sensor output components away from the wire feeding device (4) are used for preheating, and the high-frequency sensor output components close to the wire feeding device (4) are used for welding. It also includes a pressing mechanism (5), which is located behind the welding station. During operation, the chain in the conveying mechanism (1) drives the placement fixture (2) to run along the track (12). When the workpiece reaches the position of the high-frequency welding machine (3), the high-frequency sensor output component away from the wire feeding device (4) preheats the workpiece. After preheating to meet the welding temperature requirements, the conveying mechanism (1) continues to convey the preheated workpiece forward. When it reaches the area below the high-frequency sensor output component near the wire feeding device (4), the temperature detection device detects the temperature of the workpiece to be welded. When the temperature reaches the preset welding temperature, the high-frequency sensor output component welds it. If the temperature does not meet the welding requirements, it is preheated to the welding temperature and then welded. After welding, it is pressed by the pressing mechanism (5).

2. The busbar welding line according to claim 1, characterized in that: The conveying mechanism (1) includes a conveying mounting frame (101), on which a main drive mechanism (102) and a driven drive mechanism (103) are provided. The main drive mechanism (102) and the driven drive mechanism (103) are connected by a chain (11). The track (12) is located on both sides of the conveying mounting frame (101).

3. The workpiece transport mechanism of claim 1, wherein: It also includes at least one limiting mechanism (13) for restricting the movement of the tooling, the limiting mechanism (13) being mounted on the conveying mechanism (1).

4. The workpiece conveying mechanism according to claim 1, characterized in that: The limiting mechanism (13) includes a set of mounting bases (131), a drive rod (132) and a limiting drive mechanism (133). The mounting base (131) is located on one side of the conveying mounting frame (101). The drive rod (132) is located in the mounting hole of the mounting base (131) and is provided with at least one limiting component (134). A locking ring (135) is also provided on one side of the drive rod (132) located on the mounting base (131). The limiting drive mechanism (133) is mounted on the conveyor mounting frame (101), and its output end is connected to the drive swing arm (136) through the drive connector (1331). The end of the drive swing arm (136) away from the drive connector (1331) is connected to the drive rod (132).

5. The workpiece conveying mechanism according to claim 4, characterized in that: The placement fixture (2) includes a fixture base plate (21), on which a support mechanism (22) for placing the product is provided, and at least one positioning mechanism (23) for positioning the product is provided on the fixture base plate (21) outside the support mechanism (22).

6. The busbar welding production line according to claim 5, characterized in that: The support mechanism (22) includes a support base (221) and a support block (222). The support base (221) is provided with a positioning hole (222) and an installation hole. The support block (222) is installed in the installation hole and is used to support the column located in the positioning hole (222) on the workpiece.

7. The busbar welding production line according to claim 5, characterized in that: The positioning mechanism (23) includes a positioning bracket (231), a positioning element (232), and a spring (233). The positioning bracket (231) is mounted on the tooling base plate (21). The positioning bracket (231) has an installation groove. One end of the positioning element (232) is located in the installation groove and is hinged to the positioning bracket (231). One end of the spring (233) is connected to the positioning bracket (231), and the other end is connected to the positioning element (232).

8. The busbar welding production line according to claim 5, characterized in that: A moving mechanism (24) is provided below the tooling base plate (21), and the moving mechanism (24) cooperates with the track; It also includes a transmission connection component (25), one end of which is connected to the moving mechanism (24), and the other end is provided with a set of waist holes. The connection component (25) is connected to the chain (11) through a set of connecting pins, and the pins are provided with grooves. An elastic retaining ring (251) is provided in the grooves, and the elastic retaining ring (251) is used for limiting.

9. The busbar welding production line according to claim 5, characterized in that: The placement fixture (2) also includes a limiting block (26), which is located on the outside of the moving mechanism (24) at the lower part of the placement fixture (2). The limiting block (26) has a limiting groove, and the limiting part on the limiting component (134) cooperates with the limiting groove.

10. The busbar welding production line according to claim 5, characterized in that: It also includes a wire feeding device (4), which includes a wire feeding mechanism (41) for feeding wire and a wire feeding movement adjustment module (42) for adjusting the lateral and longitudinal positions of the wire feeding mechanism (42). The wire feeding movement adjustment module (42) is located at the wire feeding position of the frame and is located on one side of the conveying mechanism (1). The wire feeding mechanism (42) is mounted on the wire feeding movement adjustment module (41) and cooperates with the second high-frequency sensor output component (32).

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