Welding device for new energy automobile part machining

Abstract

The invention relates to the technical field of new energy automobile part machining, and discloses a welding device for new energy automobile part machining, the welding device comprises a base, a heat dissipation assembly, a traction assembly and two workbenches, the two sides of the base in the length direction are each provided with a vertical frame, and a welding table is arranged between the upper ends of the two vertical frames; a notch and a welding robot are arranged on the upper surface of each welding table, clamps used for clamping workpieces are arranged on the workbenches, a plurality of ventilation holes are distributed in the end faces of the workbenches, and at the beginning, one workbench is located in the notch, and the position of the workbench is named as a welding position; the other workbench is located on one side of the welding table, the position of the workbench is named as a feeding and discharging position, the heat dissipation assembly is located below the welding position and used for conducting heat dissipation on a workpiece at the welding position, and the traction assembly is used for pulling the two workbenches to conduct position interchange.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicle part processing, and particularly to a welding device for new energy vehicle part processing. Background Art

[0002] Welding is one of the processes used in new energy vehicle part processing. With the continuous development of technology, welding equipment is gradually developing towards automation and high efficiency.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN207508559U discloses an alternating type automatic welding device, which drives the left moving table and the right moving table to perform reciprocating movements respectively through the left driving device and the right driving device and are alternately located below the welding manipulator, so that the welding manipulator continuously welds workpieces without interruption, thereby realizing automatic and high-efficiency welding. However, there are still some deficiencies in this method. For example, although alternating welding is achieved through two moving tables, in actual use, three working station areas are required, that is, the areas occupied by the two moving tables plus the area below the welding manipulator, resulting in a relatively large floor area, and improvement is needed on the basis of alternation to reduce the floor area; the loading and unloading positions of the left moving table and the right moving table are not in the same place, so two loading and unloading structures are required, and the structure is more complex; as is well known, since heat is generated during welding, heat dissipation is necessary, and the quality of heat dissipation will directly affect welding quality, process stability and material properties. There are many part interferences at the position of the welding manipulator in this patent document, so there is a problem that it is difficult to maximize the heat dissipation effect of the heat dissipation structure on the workpiece welding position.

[0004] Based on the above problems, the present invention proposes a welding device for new energy vehicle part processing. Summary of the Invention

[0005] To solve the problems mentioned in the above background, the present invention provides a welding device for new energy vehicle part processing.

[0006] To achieve the above technical objectives, the technical solutions adopted by the present invention are as follows.

[0007] A welding device for new energy vehicle part processing includes a base, a heat dissipation component, a traction component, and two workbenches, wherein: On both sides of the base along the length direction, there is a vertical frame respectively. Between the upper ends of the two vertical frames, there is a welding table, and a notch and a welding robot are arranged on the upper surface of the welding table; A fixture for clamping workpieces is provided on the workbench. A number of ventilation holes are distributed on the end face of the workbench. Initially, one workbench is located within the notch and the position of this workbench is named the welding position, and the other workbench is located on one side of the welding table and the position of this workbench is named the loading and unloading position; The heat dissipation component is located below the welding position and is used to dissipate heat from the workpiece at the welding position; The traction component is used to traction the two workbenches to exchange positions.

[0008] Further, the heat dissipation component includes a wind guide shell and a fan provided in the wind guide shell. The upper opening of the wind guide shell is close to the welding position. An air inlet is provided on the side of the wind guide shell facing away from the loading and unloading position. The air flow generated by the operation of the fan flows towards the welding position through the upper opening of the wind guide shell.

[0009] Further, the traction component includes a driving part and two traction parts. The two traction parts are respectively located on both sides of the welding table, and the two workbenches are respectively connected to the two traction parts.

[0010] Further, the traction part includes a sliding seat capable of moving along the length direction of the base. The upper surface of the sliding seat is provided with an outer guide post arranged vertically. An inner sliding rod is slidably arranged in the outer guide post. The upper end of the inner sliding rod extends out of the outer guide post and is provided with an upper bracket; The workbench is rotatably arranged on the upper bracket, and the axis line of the connecting shaft formed at the rotation connection is parallel to the width direction of the base. The connecting shaft is power-connected to a second electric motor arranged on the upper bracket.

[0011] Further, a side plate is respectively provided on the opposite sides of the two traction parts. The two side plates are respectively named side plate a and side plate b. A side linkage hole a is provided on side plate a, and a side linkage hole b is provided on side plate b; Support pins are provided on the upper bracket, and the support pins in the two traction parts are respectively slidably located in the side linkage hole a and the side linkage hole b.

[0012] Further, the side linkage hole a includes an inclined section a and a horizontal section a. The guiding direction of the horizontal section a is parallel to the length direction of the base. The inclined section a is arranged at one end of the horizontal section a facing the welding position, and the inclined section a inclines away from the horizontal section a and away from the base; The side linkage hole b includes a horizontal section c with a guiding direction parallel to the length direction of the base. An inclined section c is provided at one end of the horizontal section c facing the welding position. The inclined section c inclines away from the horizontal section c and towards the base. At one end of the inclined section c facing the welding position, a horizontal section b is provided. The guiding direction of the horizontal section b is parallel to the length direction of the base. At one end of the horizontal section b facing the welding position, an inclined section b is provided. The inclined section b inclines away from the horizontal section b and away from the base.

[0013] Further, one end of the side linkage hole a facing the welding position is named as the starting point a, and the other end is named as the ending point a; one end of the side linkage hole b facing the welding position is named as the starting point b, and the other end is named as the ending point b. The starting point a and the starting point b have the same height, and the connecting straight line between them is parallel to the width direction of the base; the ending point a and the ending point b have the same height, and the connecting straight line between them is parallel to the width direction of the base.

[0014] Further, the traction component includes a lead screw and a linear guide whose extending directions are parallel to the length direction of the base. The sliding seat is slidably arranged on the linear guide, and the sliding seat is threadedly connected with the lead screw. The driving component includes a first motor. The first motor is power-connected to the lead screws in the two traction components through a power transmission member. When the sliding seats in the two traction components move, their speeds are the same and the directions are opposite.

[0015] Further, the process of the traction assembly pulling the two workbenches to exchange positions includes the following steps: Step 1: The second motor of the traction component at the welding position operates to switch the workbench from the horizontal state to the vertical state. Step 2: The sliding seats in the two traction components move at the same speed in opposite directions, so that the workbench at the welding position moves towards the loading and unloading position, and the workbench at the loading and unloading position moves towards the welding position. During this movement process, the workbench at the welding position moves while maintaining the vertical state. After moving away from the heat dissipation component, it switches back to the horizontal state. Then, the two workbenches meet and are arranged vertically. Step 3: The sliding seat continues to move, so that the workbench that was previously at the welding position moves to the loading and unloading position, and the workbench that was previously at the loading and unloading position moves to the welding position. During the process of the workbench that was previously at the loading and unloading position moving to the welding position, the corresponding second motor drives this workbench to switch from the horizontal state to the vertical state, and after reaching the welding position, it switches back to the horizontal state.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In this solution, the traction assembly pulls the two workbenches to exchange positions between the welding position and the loading and unloading position, so as to achieve the purpose of alternating continuous welding. On this basis: 1. Both workbenches perform workpiece loading and unloading at the loading and unloading position and receive welding at the welding position. Therefore, only one loading and unloading structure is required, and the structure is simpler. 2. During welding, the airflow provided by the heat dissipation component flows from bottom to top towards the welding position, achieving heat dissipation for the workpiece at the welding position. Since the two worktables are swapped in position, the area below the welding position is always blank. Also, since the heat dissipation component is precisely arranged in this blank area, when the airflow provided by the heat dissipation component blows towards the welding position, there are no parts obstructing the airflow trajectory, resulting in better heat dissipation effect. 3. Another core of this solution is that during the process of the two worktables swapping positions, the two worktables go through stages of approaching each other, meeting and being arranged vertically, and moving away from each other. In the stage of moving away from each other, the worktable moving towards the welding position needs to switch from a horizontal state to a vertical state, and after moving to the welding position, it switches back to a horizontal state. The advantages are as follows: When the worktable moves towards the welding position, the blank area reserved for the movement of the worktable mentioned in 2 is smaller. Therefore, the air outlet of the heat dissipation component can be closer to the welding position. As is well known, the closer the air outlet is, the better the heat dissipation effect of the airflow. Therefore, this solution can maximize the proximity of the air outlet of the heat dissipation component to the welding position, thereby improving the heat dissipation effect on the workpiece during welding, and achieving the purpose of improving the welding quality. Description of the Drawings

[0017] Figure 1 Structural schematic of the present invention Figure 1 ; Figure 2 Structural schematic of the present invention Figure 2 ; Figure 3 Structural schematic of the present invention Figure 3 ; Figure 4 Structural schematic of the present invention Figure 4 ; Figure 5 Structural schematic of the present invention Figure 5 ; Figure 6 Schematic diagram of the two worktables and the traction component; Figure 7 Partial schematic diagram of the traction component; Figure 8 Schematic diagram of the two side plates; Figure 9 Side view of the two side plates.

[0018] The reference numerals in the drawings are: 100, Base; 101, Vertical frame; 102, Welding table; 103, Notch; 104, Welding robot; 105, Heat dissipation component; 1051, Air guide shell; 1052, Fan; 106, Workbench; 107, Traction component; 108, First motor; 109, Power transmission part; 110, Lead screw; 111, Linear guide; 112, Slide block; 113, Outer guide post; 114, Inner slide bar; 115, Upper bracket; 116, Second motor; 117, Support pin; 118, Side plate a; 1181, Inclined section a; 1182, Horizontal section a; 119, Side plate b; 1191, Inclined section b; 1192, Horizontal section b; 1193, Inclined section c; 1194, Horizontal section c. Detailed implementation mode

[0019] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines the drawings and preferred embodiments to detail the specific implementation mode, structure, features and their effects of the present invention as follows.

[0020] Refer to Figures 1-9 , A welding device for processing new energy vehicle parts, including a base 100. A vertical frame 101 is provided on each side of the base 100. A horizontally arranged welding table 102 is provided between the upper ends of the two vertical frames 101. A notch 103 and a welding robot 104 are provided on the upper surface of the welding table 102. The welding robot 104 can be realized by existing welding technology and will not be elaborated.

[0021] It also includes two workbenches 106. During use, one workbench 106 is located in the notch 103, and this position is named the welding position. The workpiece on the workbench 106 here is welded. The other workbench 106 is located on one side of the welding table 102, and this position is named the loading and unloading position. The workpiece on the workbench 106 here is loaded and unloaded. Further, a fixture for clamping the workpiece to be welded is provided on each workbench 106. The fixture can be realized by existing technology and will not be elaborated. In addition, a number of ventilation holes are distributed on the end face of the workbench 106 for air flow to achieve the purpose of dissipating heat from the workpiece. The fixture and the ventilation holes are not shown in the figure.

[0022] It also includes a heat dissipation component 105 located below the welding position and a traction component 107 for pulling the two workbenches 106 to exchange positions between the welding position and the loading and unloading position.

[0023] Heat dissipation component 105: Refer to Figure 2, the heat dissipation component 105 includes a wind guide housing 1051 and a fan 1052 disposed inside the wind guide housing 1051. The upper opening of the wind guide housing 1051 is close to the welding position, and an air inlet is provided on one side of the wind guide housing 1051 away from the loading and unloading position. The air flow generated by the operation of the fan 1052 flows through the upper opening of the wind guide housing 1051 towards the welding position: On the one hand, heat flows upward. Therefore, the air flow from bottom to top can better dissipate heat at the welding position. On the other hand, when the traction component 107 pulls the two workbenches 106 to exchange positions, the moving trajectory of the workbench 106 can avoid the wind guide housing 1051, so that the area below the welding position is as blank as possible. The wind guide housing 1051 is installed in this blank area, so that the air outlet of the wind guide housing 1051 can be closer to the welding position. As is well known, the closer the distance, the better the heat dissipation effect of the air flow; In addition, compared with the double-station alternating technology mentioned in the background art, in this solution, there is only one loading and unloading position for the two workbenches 106. Therefore, it is more convenient to load or unload workpieces, and the floor area is smaller.

[0024] Traction component 107: Refer to Figures 6-9 , the traction component 107 includes a driving component and two traction components.

[0025] The two traction components are respectively located on both sides of the welding table 102 and correspond to the two workbenches 106 respectively.

[0026] The driving component is used to drive the traction component to operate.

[0027] Refer to Figure 6 And Figure 7 , the traction component includes a lead screw 110 and a linear guide 111 whose extending direction is parallel to the length direction of the base 100. A sliding seat 112 is slidably arranged on the linear guide 111, and the sliding seat 112 is simultaneously threadedly connected with the lead screw 110. Therefore, when the driving component drives the lead screw 110 to move, the sliding seat 112 moves on the linear guide 111. It should be noted that the moving speeds of the sliding seats 112 in the two traction components are the same but the directions are opposite.

[0028] The upper surface of the sliding seat 112 is provided with an outer guide post 113 arranged vertically. An inner sliding rod 114 is slidably arranged inside the outer guide post 113, and the upper end of the inner sliding rod 114 extends out of the outer guide post 113 and is provided with an upper bracket 115.

[0029] The workbench 106 is rotatably arranged on the upper support 115, and the axis line of the connecting shaft formed at the rotation connection is parallel to the width direction of the base 100. The connecting shaft is in power connection with the second motor 116 arranged on the upper support 115, that is, the workbench 106 can be driven to rotate around the connecting shaft by the second motor 116.

[0030] Refer to Figure 6 , on the opposite sides of the two traction components, there is a side plate respectively. The two side plates are named side plate a 118 and side plate b 119 respectively. There is a side linkage hole a on the side plate a 118, and a side linkage hole b on the side plate b 119.

[0031] Refer to Figure 8 , the side linkage hole a includes an inclined section a 1181 and a horizontal section a 1182. Among them, the guiding direction of the horizontal section a 1182 is parallel to the length direction of the base 100. The inclined section a 1181 is arranged at one end of the horizontal section a 1182 facing the welding position, and the inclined section a 1181 inclines away from the horizontal section a 1182 and away from the base 100.

[0032] The side linkage hole b includes a horizontal section c 1194 whose guiding direction is parallel to the length direction of the base 100. At one end of the horizontal section c 1194 facing the welding position, there is an inclined section c 1193. The inclined section c 1193 inclines away from the horizontal section c 1194 and towards the base 100. At one end of the inclined section c 1193 facing the welding position, there is a horizontal section b 1192. The guiding direction of the horizontal section b 1192 is parallel to the length direction of the base 100. At one end of the horizontal section b 1192 facing the welding position, there is an inclined section b 1191. The inclined section b 1191 inclines away from the horizontal section b 1192 and away from the base 100.

[0033] Refer to Figure 9 , one end of the side linkage hole a facing the welding position is named starting point a, and the other end is named ending point a. Similarly, one end of the side linkage hole b facing the welding position is named starting point b, and the other end is named ending point b.

[0034] The starting point a and the starting point b are at the same height, and the connecting straight line between them is parallel to the width direction of the base 100. The ending point a and the ending point b are at the same height, and the connecting straight line between them is parallel to the width direction of the base 100.

[0035] Refer to Figure 6 And Figure 7 , there is a support pin 117 on the upper support 115. The support pins 117 in the two traction components are respectively slidably located in the side linkage hole a and the side linkage hole b.

[0036] Refer to Figure 6, The driving component includes a first motor 108. The first motor 108 is power-connected to the lead screw 110 among the two traction components through a power transmission member 109. It should be noted that since the sliding seats 112 among the two traction components need to move at the same speed in opposite directions, therefore, if the thread directions of the lead screws 110 among the two traction components are opposite, then when the power of the first motor 108 is transmitted to the lead screws 110 through the power transmission member 109, the rotation directions of the two lead screws 110 during rotation are the same. On the contrary, if the thread directions of the two lead screws 110 are the same, then the rotation directions of the two lead screws 110 during rotation should be opposite, so as to ensure that the two sliding seats 112 move at the same speed but in opposite directions.

[0037] In a preferred embodiment, the outer guide column 113, the inner sliding rod 114, and the workbench 106 are made of materials with relatively light weights such as aluminum alloy.

[0038] The working principle of the present invention: In this solution, the traction assembly 107 is used to traction the two workbenches 106 to exchange positions between the welding position and the loading / unloading position, so as to achieve the purpose of alternating continuous welding. On this basis: 1. Both of the two workbenches 106 perform loading and unloading of components at the loading / unloading position and receive welding at the welding position. Therefore, only one loading / unloading structure is required, and the structure is simpler. It should be noted that the loading / unloading structure can adopt technologies such as manual labor or existing robotic arms, which will not be elaborated here; 2. During welding, the air flow provided by the heat dissipation assembly 105 flows from bottom to top towards the welding position to achieve heat dissipation of the workpiece at the welding position. Since there is a blank area below the welding position after the two workbenches 106 exchange positions, and the heat dissipation assembly 105 is exactly arranged in this blank area, therefore, when the air flow provided by the heat dissipation assembly 105 blows towards the welding position, there are no any parts obstructing in the air flow path, and the heat dissipation effect is better; 3. Another core of this solution is to maximize the distance between the air outlet of the heat dissipation assembly 105 and the welding position as much as possible. As is well known, the closer the distance, the better the heat dissipation effect. Therefore, this solution can maximize the air flow heat dissipation effect. Specifically: Step 1: The traction component at the welding position: The second motor 116 operates to switch the workbench 106 from a horizontal state to a vertical state. It should be noted that during the switching, taking Figure 1 the perspective as an example, the workbench 106 rotates clockwise; The process of Step 1 can be referred to Figures 1-2 ; Step 2: The first motor 108 operates to make the sliding seats 112 in the two traction components move in the same speed but in opposite directions, thereby driving the workbench 106 at the welding position to move towards the loading and unloading position, and the workbench 106 at the loading and unloading position to move towards the welding position. During this movement, the workbench 106 at the welding position moves in a vertical state until it moves away from the heat dissipation component 105 and then switches back from the vertical state to the horizontal state. Then, the two workbenches 106 will meet and be arranged vertically and horizontally. The process of Step 2 can be referred to Figures 2-4 ; Step 3: The first motor 108 continues to operate, so that the workbench 106 that was previously at the welding position moves to the loading and unloading position, and the workbench 106 that was previously at the loading and unloading position moves to the welding position. It should be noted that during the process of the workbench 106 moving to the welding position, the corresponding second motor 116 also needs to drive this workbench 106 to switch from the horizontal state to the vertical state, and then switch back from the vertical state to the horizontal state after reaching the welding position, so as to achieve the purpose of avoiding the heat dissipation component 105. The process of Step 3 can be referred to Figures 4-5 ; The advantage is that when the workbench 106 moves towards the welding position, the movement trajectory near the welding position determines the distance between the heat dissipation component 105 and the welding position. Also, since the movement trajectory range of the workbench 106 in the horizontal state when approaching the welding position is larger than that of the workbench 106 in the vertical state when approaching the welding position, therefore, the position exchange method of Steps 1 - 3 in this solution can maximize the outlet of the heat dissipation component 105 to be close to the welding position, thereby improving the heat dissipation effect on the workpiece during welding, and thus achieving the effect of improving the welding quality.

[0039] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A welding device for processing new energy vehicle parts, characterized in that, Including: A base (100), on each of the two sides of the base (100) along the length direction, there is a vertical frame (101) respectively. Between the upper ends of the two vertical frames (101), there is a welding table (102). On the upper surface of the welding table (102), there is a notch (103) and a welding robot (104); Two worktables (106), on the worktables (106), there are fixtures for clamping workpieces. A number of ventilation holes are distributed on the end face of the worktable (106). Initially, one worktable (106) is located in the notch (103) and the position of this worktable (106) is named the welding position, and the other worktable (106) is located on one side of the welding table (102) and the position of this worktable (106) is named the loading and unloading position; A heat dissipation component (105), the heat dissipation component (105) is located below the welding position and is used to dissipate heat from the workpiece at the welding position; And a traction component (107), the traction component (107) is used to traction the two worktables (106) to exchange positions.

2. The welding device for processing new energy vehicle parts according to claim 1, characterized in that, The heat dissipation component (105) includes a wind guiding shell (1051) and a fan (1052) arranged in the wind guiding shell (1051). The upper opening of the wind guiding shell (1051) is close to the welding position. On the side of the wind guiding shell (1051) facing away from the loading and unloading position, there is an air inlet. The air flow generated by the operation of the fan (1052) flows towards the welding position through the upper opening of the wind guiding shell (1051).

3. A welding device for processing new energy vehicle parts according to claim 1 or 2, characterized in that, The traction component (107) includes a driving part and two traction parts. The two traction parts are respectively located on both sides of the welding table (102), and the two worktables (106) are respectively connected to the two traction parts.

4. A welding device for processing new energy vehicle parts according to claim 3, characterized in that, The traction part includes a sliding seat (112) that can move along the length direction of the base (100). On the upper surface of the sliding seat (112), there is an outer guide post (113) arranged vertically. An inner sliding rod (114) is slidably arranged in the outer guide post (113). The upper end of the inner sliding rod (114) extends out of the outer guide post (113) and is provided with an upper support (115); The worktable (106) is rotatably arranged on the upper support (115), and the axis line of the connecting shaft formed at the rotation connection is parallel to the width direction of the base (100). The connecting shaft is in power connection with a second motor (116) arranged on the upper support (115).

5. A welding device for processing new energy vehicle parts according to claim 4, characterized in that, On the opposite sides of the two traction parts, there is a side plate respectively. The two side plates are respectively named side plate a (118) and side plate b (119). On the side plate a (118), there is a side linkage hole a, and on the side plate b (119), there is a side linkage hole b; On the upper support (115), there is a support pin (117). The support pins (117) in the two traction parts are respectively slidably located in the side linkage hole a and the side linkage hole b.

6. The welding device for processing new energy vehicle parts according to claim 5, characterized in that, The side linkage hole a includes an inclined section a (1181) and a horizontal section a (1182). The guiding direction of the horizontal section a (1182) is parallel to the length direction of the base (100). The inclined section a (1181) is arranged at one end of the horizontal section a (1182) facing the welding position, and the inclined section a (1181) inclines away from the horizontal section a (1182) and away from the base (100). The side linkage hole b includes a horizontal section c (1194) whose guiding direction is parallel to the length direction of the base (100). An inclined section c (1193) is arranged at one end of the horizontal section c (1194) facing the welding position. The inclined section c (1193) inclines away from the horizontal section c (1194) and towards the base (100). At one end of the inclined section c (1193) facing the welding position, a horizontal section b (1192) is arranged. The guiding direction of the horizontal section b (1192) is parallel to the length direction of the base (100). At one end of the horizontal section b (1192) facing the welding position, an inclined section b (1191) is arranged. The inclined section b (1191) inclines away from the horizontal section b (1192) and away from the base (100).

7. A welding device for processing new energy vehicle parts according to claim 6, characterized in that, One end of the side linkage hole a facing the welding position is named the starting point a, and the other end is named the ending point a. One end of the side linkage hole b facing the welding position is named the starting point b, and the other end is named the ending point b. The starting point a and the starting point b have the same height, and the connecting line between them is parallel to the width direction of the base (100). The ending point a and the ending point b have the same height, and the connecting line between them is parallel to the width direction of the base (100).

8. A welding device for processing new energy vehicle parts according to claim 4, characterized in that, The traction component includes a lead screw (110) and a linear guide (111) whose extending directions are parallel to the length direction of the base (100). A sliding seat (112) is slidably arranged on the linear guide (111), and the sliding seat (112) is threadedly connected with the lead screw (110). The driving component includes a first motor (108). The first motor (108) is power-connected to the lead screw (110) in the two traction components through a power transmission member (109). When the sliding seats (112) in the two traction components move, their speeds are the same and the directions are opposite.

9. A welding device for processing new energy vehicle parts according to claim 7, characterized in that, The process of the traction assembly (107) pulling the two workbenches (106) to exchange positions includes the following steps: Step 1: The second motor (116) of the traction component at the welding position operates to switch the workbench (106) from the horizontal state to the vertical state. Step 2: The sliding seats (112) in the two traction components move at the same speed but in opposite directions, so that the workbench (106) at the welding position moves towards the loading and unloading position, and the workbench (106) at the loading and unloading position moves towards the welding position. During this movement process, the workbench (106) at the welding position moves while maintaining the vertical state. After moving away from the heat dissipation component (105), it switches back to the horizontal state. Then, the two workbenches (106) meet and are arranged vertically. Step 3: The slide base (112) continues to move, causing the workbench (106) that was previously at the welding position to move to the loading and unloading position, and the workbench (106) that was previously at the loading and unloading position to move to the welding position; During the process of the workbench (106) that was previously at the loading and unloading position moving to the welding position, the corresponding second motor (116) drives this workbench (106) to switch from a horizontal state to a vertical state, and then back to the horizontal state after reaching the welding position.

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