A spot welding device and a spot welding method for a heat sink

Abstract

The application relates to a spot welding device and a spot welding method of a radiator, which comprises a rack body, a base plate arranged on the rack body, a welding station matched with the radiator body and arranged on the base plate, and a welding arm body for welding the radiator body and arranged on the rack body; a feeding and taking-off structure is arranged on the rack body; the feeding and taking-off structure comprises a mounting frame fixedly arranged on the rack body, a linear translation mechanism arranged on the mounting frame, a linear downward moving mechanism arranged on the linear translation mechanism, and a material taking-off head arranged at the execution end of the linear downward moving mechanism; a vacuum suction nozzle for adsorbing the radiator body is inlaid in the material taking-off head. The material taking-off structure is arranged, the vacuum suction nozzle is used for automatically adsorbing the radiator body, the linear translation mechanism is used for conveying the radiator body between the adsorption station and the placement station, and the complicated steps of manually picking up, carrying and placing the radiator by an operator are replaced.

Description

Technical Field

[0001] This invention relates to the field of radiator manufacturing technology, specifically to a spot welding device and spot welding method for radiators. Background Technology

[0002] Radiators are crucial components for effectively transferring heat generated during the operation of machinery or other appliances. In radiator manufacturing, spot welding equipment is typically used to assemble the radiator body. Currently, most existing spot welding equipment involves manually placing the radiator body on the welding station by hand, followed by spot welding by a welding arm. This method not only increases the operator's workload but also makes it difficult to ensure consistent positioning each time, leading to frequent deviations in the radiator's placement within the welding station and severely impacting weld quality. Furthermore, manual operation is inefficient and cannot meet the demands of automated mass production. Summary of the Invention

[0003] The purpose of this invention is to provide a spot welding device and a spot welding method for a radiator.

[0004] The objective of this invention is achieved through the following technical solution: a spot welding device and spot welding method for a radiator, comprising a frame body, a base plate placed on the frame body, a welding station adapted to the radiator body on the base plate, and a welding arm body for welding the radiator body installed on the frame body. The frame body is equipped with a material loading and unloading structure; The material handling structure includes a mounting frame fixedly installed on the frame body, a linear translation mechanism set on the mounting frame, a linear downward movement mechanism set on the linear translation mechanism, and a material handling head set at the execution end of the linear downward movement mechanism; The material handling head is equipped with a vacuum nozzle for adsorbing the radiator body; The frame body is provided with a feeding trough for storing the heat sink body, and the outlet position of the feeding trough corresponds to the material taking head being directly below the adsorption station. The linear translation mechanism is used to drive the linear downward movement mechanism and the material picking head to switch between the adsorption station and the placement station located directly above the welding station; The linear downward movement mechanism is used to drive the material pick-up head downward at the placement station to place the heat sink body into the welding station of the substrate.

[0005] The linear translation mechanism includes a translation guide groove formed at the bottom of the inner cavity of the mounting frame and a mounting plate slidably connected in the translation guide groove; The linear downward movement mechanism includes downward guide grooves symmetrically opened on the mounting plate and a downward plate slidably connected in the downward guide grooves. The material taking head is connected to the downward plate through a connecting rod.

[0006] The material handling structure also includes a drive assembly disposed within the mounting frame. The drive assembly includes a rotating shaft driven by a drive component, a turntable a and a turntable b fixed on the rotating shaft, the end face of the turntable a having a downward sliding groove, and the end face of the turntable b having a translational sliding groove. The mounting frame is hinged with a mating rod a, and the two sides of the mating rod a are respectively rolled and engaged with the downward groove opened on the downward plate and the downward mating groove on the turntable a through two rollers a; A connecting plate is fixed inside the mounting frame, and a mating rod b is hinged to the connecting plate. The two sides of the mating rod b are respectively connected to the translation groove on the mounting plate and the translation mating groove on the turntable b via two rollers b.

[0007] The feeding trough is provided with a pushing structure, which includes a pushing block slidably connected in the feeding trough and an elastic element a disposed between the pushing block and the end of the feeding trough. The top of the pushing block and the corresponding position of the frame body are provided with a pin hole for inserting a limiting pin.

[0008] The outlet of the feeding trough is provided with a material support structure, which includes a shelf that is slidably connected to the frame body and an elastic member b that acts on the shelf to make it extend. The shelf is used to temporarily intercept the radiator body at the very end.

[0009] The material holding structure also includes an auxiliary plate fixed to the shelf, the auxiliary plate having a sliding groove, and an extrusion column that cooperates with the sliding groove fixed on the connecting rod. When the material taking head moves to the adsorption station, the extrusion column moves along the sliding groove and drives the shelf to retract, releasing the obstruction of the radiator body.

[0010] A clamping structure is fixedly connected to the mounting frame. The clamping structure includes a fixed plate fixed to the mounting frame, a guide rod that slides through the fixed plate, a pressure plate fixed to the end of the guide rod, and an elastic element c sleeved on the guide rod and acting between the fixed plate and the pressure plate. A pressure column is fixed on the connecting rod. When the material head moves downward, the pressure column presses against the guide rod, causing the pressure plate to move downward and clamp the substrate.

[0011] The driving component is a servo motor or a stepper motor, the downward moving groove is a rhomboid or elliptical structure, and the translational moving groove is a triangular or eccentric arc structure.

[0012] Compared with the prior art, the advantages of the present invention are as follows: This invention features a material handling structure on the frame body, consisting of a feeding trough, a linear translation mechanism, a linear downward movement mechanism, and a material handling head. The material handling head is equipped with a vacuum nozzle that automatically adsorbs the heat sink body. The linear translation mechanism drives the material handling head to switch between the adsorption station and the placement station. The linear downward movement mechanism drives the material handling head to descend from the placement station to accurately place the heat sink body into the welding station of the substrate. The entire handling process requires no manual intervention, effectively ensuring the consistency and repeatability of the heat sink body's placement position in the welding station, thereby improving welding quality and production efficiency. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present invention; Figure 2 This is a diagram showing the fit between the welding arm body and the frame body of the present invention; Figure 3 This is a schematic diagram of the material handling structure of the present invention; Figure 4 This is an exploded view of the material handling structure of the present invention; Figure 5 This is a schematic diagram of the structure of the downward moving mating groove of the present invention; Figure 6 This is a schematic diagram of the lower moving groove structure of the present invention; Figure 7 This is a schematic diagram of the translation groove of the present invention; Figure 8 This is a schematic diagram of the pusher block of the present invention; Figure 9 This is a schematic diagram of the vacuum nozzle structure of the present invention.

[0014] Labeling Explanation: 1. Frame Body; 101. Base Plate; 102. Welding Station; 103. Radiator Body; 104. Welding Arm Body; 2. Mounting Frame; 201. Pick-up Head; 202. Vacuum Nozzle; 203. Loading Slot; 3. Translation Guide Slot; 301. Mounting Plate; 302. Downward Guide Slot; 303. Downward Plate; 304. Connecting Rod; 4. Drive Component; 401. Rotary Shaft; 402. Turntable a; 403. Turntable b; 404. Downward Fitting Slot; 4 05. Translation groove; 406. Fitting rod a; 407. Roller a; 408. Lowering groove; 409. Connecting plate; 410. Fitting rod b; 411. Roller b; 412. Translation groove; 5. Push block; 501. Elastic element a; 502. Pin hole; 6. Shelf; 601. Elastic element b; 7. Auxiliary plate; 701. Slide groove; 702. Extrusion column; 8. Fixing plate; 801. Guide rod; 802. Pressure plate; 803. Elastic element c; 804. Pressure column. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 9 The diagram shows an embodiment of a spot welding device and spot welding method for a radiator provided by the present invention. It includes a frame body 1, a base plate 101 placed on the frame body 1, a welding station 102 adapted to the radiator body 104 on the base plate 101, and a welding arm body 103 for welding the radiator body 103 installed on the frame body 1. The frame body 1 is equipped with a material loading and unloading structure; The material handling structure includes a mounting frame 2 fixedly installed on the frame body 1, a linear translation mechanism set on the mounting frame 2, a linear downward movement mechanism set on the linear translation mechanism, and a material handling head 201 set at the execution end of the linear downward movement mechanism; The material handling head 201 is embedded with a vacuum nozzle 202 for adsorbing the radiator body 103; The frame body 1 is provided with a feeding trough 203 for storing the heat sink body 103, and the outlet position of the feeding trough 203 corresponds to the material taking head 201 directly below the adsorption station. The linear translation mechanism is used to drive the linear downward movement mechanism and the material pick-up head 201 to switch between the adsorption station and the placement station located directly above the welding station 102; The linear downward movement mechanism is used to place the heat sink body 103 into the welding station 102 of the substrate 101 as the material pick-up head 201 moves downward at the placement station. By setting up a material handling structure that integrates a linear translation mechanism, a linear downward movement mechanism, a material handling head 201, and a vacuum nozzle 202, and in conjunction with a feeding trough 203 and clearly defined adsorption and placement stations, a solution is constructed that eliminates the need for manual placement of the radiator body 103. This improves production efficiency and ensures the consistency of the radiator body 103's placement position within the welding station 102. At the same time, the independent welding arm body 104 ensures the reliability and stability of the welding process.

[0016] The linear translation mechanism includes a translation guide groove 3 formed at the bottom of the inner cavity of the mounting frame 2 and a mounting plate 301 slidably connected in the translation guide groove 3; The linear downward movement mechanism includes a downward guide groove 302 symmetrically opened on the mounting plate 301 and a downward plate 303 slidably connected in the downward guide groove 302. The material pick-up head 201 is connected to the downward plate 303 through a connecting rod 304. Translation is achieved by combining translation guide groove 3 with mounting plate 301, and downward movement is achieved by combining downward guide groove 302 with downward plate 303. The connection is made by connecting rod 304, which ensures the stability and reliability of the material taking head 201 in complex motion trajectory.

[0017] The material handling structure also includes a drive assembly set in the mounting frame 2. The drive assembly includes a rotating shaft 401 driven by a drive component 4, a turntable a402 and a turntable b403 fixed on the rotating shaft 401. The end face of the turntable a402 is provided with a downward sliding groove 404, and the end face of the turntable b403 is provided with a translational sliding groove 405. The mounting bracket 2 has a hinged mating rod a406. The two sides of the mating rod a406 are connected to the lowering groove 408 on the lowering plate 303 and the lowering mating groove 404 on the turntable a402 respectively through two rollers a407. The mounting bracket 2 has a connecting plate 409 fixed inside. A mating rod b410 is hinged on the connecting plate 409. The two sides of the mating rod b410 are connected to the translation groove 412 on the mounting plate 301 and the translation mating groove 405 on the turntable b403 respectively through two rollers b411. The rotating shaft 401 is driven by a single drive element 4, and the downward and translational movements are controlled by the turntables a402 and b403 and their downward and translational mating grooves 404 and 405, respectively, through the linkage mechanism (matting rod a406 and mating rod b410) and rollers (roller a407 and roller b411). This achieves mechanical program control of two directions of movement by a single power source, which ensures absolute synchronization and reliability of all action sequences.

[0018] The feeding trough 203 is provided with a pushing structure, which includes a pushing block 5 slidably connected in the feeding trough 203 and an elastic member a501 disposed between the pushing block 5 and the end of the feeding trough 203. The top of the pushing block 5 is provided with a pin hole 502 for inserting a limiting pin at the corresponding position of the frame body 1. The pusher block 5 is pushed by the elastic element a501 to provide a continuous and stable forward thrust to the radiator body 103 queue. The design of the pin hole 502 makes it easy to lock the pusher block 5 during maintenance and loading, which improves the safety and convenience of operation and ensures that the radiator body 103 can be continuously and reliably transported to the vicinity of the outlet, thus providing a guarantee for material supply.

[0019] The outlet of the feeding trough 203 is provided with a material support structure, which includes a shelf 6 slidably connected to the frame body 1 and an elastic member b601 acting on the shelf 6 to make it extend. The shelf 6 is used to temporarily intercept the radiator body 103 at the very end. The shelf 6 is constantly extended by the elastic element b601, forming a "one-way valve" mechanism. Its effect is to accurately intercept the radiator body 103 to be picked up in the preparatory position, ensuring that the outlet is empty when no material is being picked up. This achieves the key function of only advancing one radiator body 103 at a time, avoiding the problems of outlet blockage or continuous material discharge.

[0020] The material holding structure also includes an auxiliary plate 7 fixed on the shelf 6. The auxiliary plate 7 has a sliding groove 701. The connecting rod 304 is fixed with an extrusion column 702 that cooperates with the sliding groove 701. When the material taking head 201 moves to the adsorption station, the extrusion column 702 moves along the sliding groove 701 and drives the shelf 6 to retract, thus releasing the interception of the radiator body 103. By cooperating with the extrusion column 702 fixed on the connecting rod 304 and the slide groove 701 of the auxiliary plate 7 fixed on the shelf 6, the horizontal movement of the picking head 201 is converted into the retraction action of the shelf 6. The effect is to realize the mechanical linkage between the release of the radiator body 103 and the movement of the picking head 201 without the need for an additional power source and control unit.

[0021] A clamping structure is fixedly connected to the mounting frame 2. The clamping structure includes a fixed plate 8 fixed to the mounting frame 2, a guide rod 801 that slides through the fixed plate 8, a pressure plate 802 fixed to the end of the guide rod 801, and an elastic element c803 sleeved on the guide rod 801 and acting between the fixed plate 8 and the pressure plate 802. A pressure column 804 is fixed on the connecting rod 304. When the material take-up head 201 moves downward, the pressure column 804 presses against the guide rod 801, causing the pressure plate 802 to move downward and clamp the base plate 101. By pressing down the pressure plate 802 on the connecting rod 304 during downward movement (guided by the guide rod 801 to overcome the elastic force of the elastic element c803), the substrate 101 is pre-pressed before the heat sink body 103 is placed in the material pick-up head 201. This effectively prevents the substrate 101 from shifting or vibrating during the placement of the heat sink body 103 and subsequent welding, ensuring the positional accuracy of the heat sink body 103 in the welding station 102 and improving the quality and consistency of the welding connection.

[0022] The driving component 4 is a servo motor or a stepper motor, the downward moving mating groove 404 is a rhomboid structure or an elliptical structure, and the translational mating groove 405 is a triangular structure or an eccentric arc structure. The drive component 4 is a servo motor or a stepper motor, which facilitates precise angular displacement control and is suitable for continuous rotation automated production mode. The downward moving mating groove 404 adopts a rhomboid or elliptical structure, which can achieve smooth downward movement and upward movement. The translational mating groove 405 adopts a triangular or eccentric arc structure, which can efficiently convert rotational motion into reciprocating linear motion with pauses.

[0023] Before use, the operator places the substrate 101 on the working surface of the frame body 1 and ensures that the welding station 102 on the substrate 101 is directly below the material pick-up head 201 and the welding arm body 104. In the initial state of the device, multiple radiator bodies 103 are horizontally placed in the feeding trough 203. Under the pushing force of the elastic element a501, the pusher block 5 has pushed the entire row of radiator bodies 103 forward to the front end. (When maintenance or initial loading is required, the pusher block 5 can be locked by inserting a pin into the pin hole 502 between the pusher block 5 and the frame body 1 to prevent it from accidentally springing back.) At this time, the outlet of the feeding trough 203 is empty because the shelf 6 is under the elastic force of the elastic element b601. The lower part is in the extended state, like a gate, intercepting the frontmost heat sink body 103 at a fixed preparatory position behind the outlet. The material pick-up head 201 is at the highest point of its stroke (upper position) and stays between the placement station (directly above the welding station 102) and the adsorption station (directly above the outlet of the feeding tank 203). The vacuum nozzle 202 is in the off negative pressure state. The welding arm body 104 is in the upper position, and the heating head of the welding arm body 104 is not heated or is at standby temperature.

[0024] When in use, start the drive unit 4 (servo motor) and set it to continuous rotation mode. In this mode, the drive unit 4 drives the rotating shaft 401, turntable a402 and turntable b403 to rotate continuously at a uniform speed. The timing of all subsequent actions is programmed through the groove contour. When the rotating shaft 401 rotates to the position of "horizontal movement to adsorption position", the translational mating groove 405 (triangle or eccentric arc) on the turntable b403 begins to push the roller b411 inside it. The movement of roller b411 forces mating rod b410 to swing around its hinge point. Roller b411 at the other end of mating rod b410 pushes the translation groove 412 on mounting plate 301. This process converts rotational motion into horizontal linear motion of mounting plate 301 along translation guide groove 3. This motion drives the pick-up head 201 to finally be positioned directly above the adsorption station. During the horizontal movement described above, the extrusion column 702 fixed on the connecting rod 304 moves horizontally in sync. The extrusion column 702 is embedded in the groove 701 of the auxiliary plate 7. At the same time, the extrusion column 702 generates a lateral thrust when moving horizontally. This thrust is transmitted through the auxiliary plate 7 to the shelf 6 fixedly connected to it, so that it overcomes the elastic force of the elastic element b601 and retracts into the frame body 1. The moment the shelf 6 retracts, its blocking effect on the first radiator body 103 immediately disappears. The pusher block 5, which is always in a state of storage (under the continuous strong push of the elastic element a501), pushes the unobstructed radiator body 103 forward, so that it accurately enters and occupies the previously empty "outlet material pick-up position of the loading trough 203". At this time, the rotating shaft 401 rotates to the "downward material picking" position, and the downward mating groove 404 (rhomboid or elliptical) on the turntable a402 begins to contact and push the roller a407 inside it; The movement of roller a407 forces mating rod a406 to swing around its hinge point along a specific trajectory. Roller a407 at the other end of mating rod a406 pushes down groove 408 on down plate 303. This process converts rotational motion into vertical linear motion of down plate 303 along down guide groove 302. Down plate 303 drives material take-up head 201 to move vertically downward through connecting rod 304. When the end face of the feeding head 201 comes into contact with the surface of the radiator body 103 that is already located at the feeding point, the vacuum nozzle 202 immediately turns on the negative pressure, generates an adsorption force, and firmly adsorbs the radiator body 103. Subsequently, the rotating shaft 401 rotates to the "lift after material pick-up" position. The contour change of the downward mating groove 404 guides the mating rod a406 to swing in the opposite direction. The mating rod a406 drives the downward plate 303 to move upward along the downward guide groove 302 through the roller a407, thereby lifting the material pick-up head 201 and the heat sink body 103 it adsorbs through the connecting rod 304. This upward movement ensures that the heat sink body 103 is lifted steadily and its body is completely separated from the feeding groove 203 and any surrounding structures that may interfere, providing a safe position for the subsequent horizontal movement. As the feeding head 201 moves, the pressure of the extrusion column 702 on the shelf 6 is released. The shelf 6 quickly returns to the extended state under the elastic force of the elastic element b601, immediately intercepting the second radiator body 103 in the queue, and preparing for the next cycle. Subsequently, the rotating shaft 401 rotates to the position of "horizontal movement to placement station". The translation mating groove 405 on the turntable b403 pushes the mating rod b410 again. The swing of the mating rod b410 drives the mounting plate 301 to move horizontally along the translation guide groove 3, and smoothly transfers the heat sink body 103 that has been adsorbed and lifted to the placement station directly above the welding station 102. Subsequently, the rotating shaft 401 rotates to the "lower placement" position, and the lowering mating groove 404 on the turntable a402 drives the mating rod a406 again. The mating rod a406 drives the lowering plate 303 and the picking head 201 to move down again. In the initial stage of the downward movement of the picking head 201, the pressure column 804 fixed on the connecting rod 304 first contacts and presses down the pressure plate 802. Under the precise guidance of the guide rod 801, the pressure plate 802 overcomes the elastic force of the elastic element c803 and moves downward, pressing the substrate 101 firmly and pre-pressing it onto the frame body 1. This step prevents the substrate 101 from shifting or vibrating in the subsequent process. After the workpiece is reliably clamped, the take-up head 201 continues its downward stroke, placing the heat sink body 103 into the welding station 102 of the substrate 101. At the same time, the vacuum nozzle 202 disconnects the negative pressure and releases the heat sink body 103. Then the rotating shaft 401 rotates to the "placement and rise" position, and the lowering mating groove 404 guides the lowering plate 303 to drive the picking head 201 to move vertically upward, and the picking head 201 completely separates from the substrate 101 area. At this time, the lifting drive mechanism of the welding arm body 104 is activated, driving the heating head to descend, applying pressure and heating to the radiator body 103 that has been placed in the welding station 102, so that the solder melts and the welding is completed; after the welding is completed, the heating head rises and resets. During this period, the operator can remove the soldered substrate 101 from the frame body 1 and quickly place a new substrate 101 to be processed, and ensure that the soldering station 102 on the new substrate 101 is directly below the soldering arm body 104 by the positioning device. At this time, the rotating shaft 401 has almost completed one revolution and is about to enter the "horizontal movement to adsorption position" position of the next cycle. The drive unit 4 continues to run, driving the material pick-up head 201 to move from above the placement station to the adsorption station, starting a brand new and exactly the same cycle. Throughout the entire work cycle described above, all actions, including two horizontal movements, two downward movements, two upward movements, the on / off state of the vacuum nozzle 202, and the linkage of various mechanisms, as well as the timing of their start, duration, and end, are controlled by the angular displacement of the rotating shaft 401. They are mechanically linked together through the downward movement mating groove 404 and the translational movement mating groove 405 on the turntable a402 and turntable b403, thereby ensuring the reliability and consistency of the entire device's operation. The movement of the welding arm body 104 can be achieved by an independent controller or by linkage with the drive component 4 (e.g., through a cam switch), ensuring that welding is performed after the material pick-up head 201 is withdrawn.

Claims

1. A spot welding device for a radiator, comprising a frame body (1), a base plate (101) placed on the frame body (1), a welding station (102) adapted to the radiator body (103) being provided on the base plate (101), and a welding arm body (104) for welding the radiator body (103) being installed on the frame body (1). Its features are: The frame body (1) is provided with a material loading and unloading structure; The material handling structure includes a mounting frame (2) fixedly installed on the frame body (1), a linear translation mechanism set on the mounting frame (2), a linear downward movement mechanism set on the linear translation mechanism, and a material handling head (201) set at the execution end of the linear downward movement mechanism. The material handling head (201) is embedded with a vacuum nozzle (202) for adsorbing the radiator body (103). The frame body (1) is provided with a feeding trough (203) for storing the heat sink body (103), and the outlet position of the feeding trough (203) corresponds to the material taking head (201) directly below the adsorption station. The linear translation mechanism is used to drive the linear downward movement mechanism and the material taking head (201) to switch between the adsorption station and the placement station located directly above the welding station (102); The linear downward movement mechanism is used to drive the material pick-up head (201) downward at the placement station to place the heat sink body (103) into the welding station (102) of the substrate (101).

2. The spot welding device for a radiator according to claim 1, characterized in that: The linear translation mechanism includes a translation guide groove (3) opened at the bottom of the inner cavity of the mounting frame (2) and a mounting plate (301) slidably connected in the translation guide groove (3); The linear downward movement mechanism includes a downward movement guide groove (302) symmetrically opened on the mounting plate (301) and a downward movement plate (303) slidably connected in the downward movement guide groove (302). The material taking head (201) is connected to the downward movement plate (303) through a connecting rod (304).

3. The spot welding device for a radiator according to claim 2, characterized in that: The material handling structure also includes a drive assembly set in the mounting frame (2). The drive assembly includes a rotating shaft (401) driven by a drive component (4), a turntable a (402) fixed on the rotating shaft (401), and a turntable b (403). The end face of the turntable a (402) is provided with a downward sliding groove (404), and the end face of the turntable b (403) is provided with a translational sliding groove (405). The mounting bracket (2) is hinged with a mating rod a (406). The two sides of the mating rod a (406) are respectively rolled by two rollers a (407) to the downward groove (408) opened on the downward plate (303) and the downward mating groove (404) on the turntable a (402). The mounting bracket (2) has a connecting plate (409) fixed inside. A mating rod (410) is hinged on the connecting plate (409). The mating rod (410) is connected to the mounting plate (301) and the turntable (403) through two rollers (411) respectively.

4. The spot welding device for a radiator according to claim 3, characterized in that: The feeding trough (203) is provided with a pushing structure, which includes a pushing block (5) slidably connected in the feeding trough (203) and an elastic element a (501) disposed between the pushing block (5) and the end of the feeding trough (203). The top of the pushing block (5) and the corresponding position of the frame body (1) are provided with a pin hole (502) for inserting a limiting pin.

5. The spot welding device for a radiator according to claim 4, characterized in that: The outlet of the feeding trough (203) is provided with a material support structure, which includes a shelf (6) slidably connected to the frame body (1) and an elastic member b (601) acting on the shelf (6) to give it an extension tendency. The shelf (6) is used to temporarily intercept the radiator body (103) at the very end.

6. The spot welding device for a radiator according to claim 5, characterized in that: The material holding structure also includes an auxiliary plate (7) fixed on the shelf (6). The auxiliary plate (7) has a sliding groove (701). The connecting rod (304) has an extrusion column (702) that cooperates with the sliding groove (701). When the material taking head (201) moves to the adsorption station, the extrusion column (702) moves along the sliding groove (701) and drives the shelf (6) to retract, thereby releasing the interception of the radiator body (103).

7. The spot welding device for a radiator according to claim 6, characterized in that: A clamping structure is fixedly connected to the mounting frame (2). The clamping structure includes a fixed plate (8) fixed to the mounting frame (2), a guide rod (801) that slides through the fixed plate (8), a pressure plate (802) fixed to the end of the guide rod (801), and an elastic element c (803) sleeved on the guide rod (801) and acting between the fixed plate (8) and the pressure plate (802). A pressure column (804) is fixed on the connecting rod (304). When the material take-up head (201) moves downward, the pressure column (804) presses against the guide rod (801) to make the pressure plate (802) move downward to clamp the base plate (101).

8. The spot welding device for a radiator according to claim 7, characterized in that: The driving component (4) is a servo motor or a stepper motor, the downward fitting groove (404) is a rhomboid structure or an elliptical structure, and the translational fitting groove (405) is a triangular structure or an eccentric arc structure.

9. A method of using a spot welding device for a radiator, characterized in that: The spot welding device for a radiator according to claim 8, specifically includes the following steps; S1. The drive unit (4) drives the rotating shaft (401), and the turntable moves the mounting plate (301) horizontally through the cooperating rod, and the material pick-up head (201) moves to the adsorption station; at the same time, the extrusion column (804) (702) causes the shelf (6) to retract, and the pusher block (5) pushes the radiator body (103) to the material pick-up position. S2. The turntable, through the cooperating rod, causes the material picker head (201) to descend to contact the radiator body (103). After the vacuum nozzle (202) adsorbs the material, it rises and lifts away from the material loading trough (203). At the same time, the shelf (6) resets and intercepts the next workpiece. S3. The turntable drives the mounting plate (301) to move horizontally along the guide groove again through the mating rod, so that the picking head (201) carries the heat sink body (103) from the adsorption station to the placement station directly above the welding station (102); S4. When the pick-up head (201) descends, the pressure column (804) first presses the substrate (101) to fix it, then the heat sink body (103) is placed and the vacuum is turned off. Then the pick-up head (201) rises again to reset, and finally the welding arm descends to complete the welding.

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