A support disc grid positioning and welding device

Abstract

The present application belongs to the technical field of chemical equipment inner part production, and particularly relates to a support disc grid positioning and welding device, which comprises a welding machine assembly, the welding machine assembly comprises a seat body, the rear end surface of the seat body is fixedly connected with a longitudinal hydraulic cylinder, the piston rod of the longitudinal hydraulic cylinder penetrates through the seat body and is fixedly connected with a moving block, the moving block is located in front of the front end surface of the seat body, the top surface of the moving block is fixedly connected with a vertical hydraulic cylinder, the piston rod of the vertical hydraulic cylinder penetrates through the moving block and is fixedly connected with a welding gun assembly, the welding gun head of the welding gun assembly faces a clamping disc of a clamping assembly, and the support disc grid is detachably clamped on the clamping disc. The present application can not only guarantee the consistency of grid welding quality and reduce the labor intensity of workers, but also can avoid stepping on the grids on the side when welding the middle grid manually, thereby improving the welding quality; and the present application does not need to be manufactured in blocks and then assembled and welded on site, so that the grid alignment accuracy is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of chemical equipment internal parts manufacturing technology, specifically relating to a support plate grid positioning welding device and method. Background Technology

[0002] In recent years, with the rapid development of China's oil refining and chemical industry towards large-scale and intensive operations, the design and manufacturing of reactor internals have received increasing attention. The continuously increasing inner diameter of reactors has led to increasingly complex dimensions, weights, and stress conditions for internal components, placing higher demands on the performance of key internals such as catalyst support grids. Located inside the reactor, the catalyst support grid's main functions are to support the catalyst bed, ensure uniform gas flow, and maintain bed stability; it is one of the core components affecting the safe operation and catalytic efficiency of the reactor.

[0003] Chinese patent application number CN202511692531.6 discloses a stable grid structure, including several equidistant parallel grid plates and several equidistant parallel grid ribs. The grid plates and grid ribs are perpendicularly intersected to form a grid-like stable grid body. The intersections of any grid plate and any grid rib are connected by welding. Several rib slots are arranged in an array along the length direction on the upper side of the grid plate. The grid ribs are locked in the rib slots, and the lower edge contours of the grid ribs and the rib slots are connected by welding. A grid plate passage is formed between any two adjacent grid plates. Automated dynamic sequential welding is realized, and the assembly and welding processes of the grid structure are carried out simultaneously.

[0004] Currently, the welding process for catalyst support grids and steel gratings is still mainly done manually. Operators use welding torches to weld the grid's cross intersections and the connections between the reinforcing plates and the gratings point by point. For grids in large reactor internal components, assembly and welding inside the equipment are also required. As reactor diameters continue to increase, there are some technical bottlenecks in the manufacturing of large-diameter grids. Manual welding results in poor weld quality consistency and high labor intensity for workers; large-diameter grids are inconvenient for workers to weld the central parts, and workers are prone to stepping on the grid when welding the middle, thus affecting the weld quality; if they manufacture in sections and then assemble and weld on-site, it is difficult to guarantee the welding alignment accuracy. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a support plate grid positioning welding device. Through the cooperation of the welding machine assembly, clamping assembly, and support plate grid, this invention can ensure the consistency of grid welding quality and reduce the labor intensity of workers. It can also facilitate the welding of the central area of ​​the support plate grid, avoiding the risk of stepping on the surrounding grid when manually welding the central grid, thus improving welding quality. Furthermore, it eliminates the need for segmented manufacturing followed by on-site assembly and welding, ensuring grid alignment accuracy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A support grid positioning welding device includes a welding machine assembly. The welding machine assembly includes a base, with a longitudinal hydraulic cylinder fixedly connected to the rear end face of the base. The piston rod of the longitudinal hydraulic cylinder passes through the base and is fixedly connected to a moving block. The moving block is located in front of the front end face of the base. A vertical hydraulic cylinder is fixedly connected to the top surface of the moving block. The piston rod of the vertical hydraulic cylinder passes through the moving block and is fixedly connected to a welding torch assembly. The welding torch head of the welding torch assembly faces the clamping plate of the clamping assembly. The support grid is detachably clamped on the clamping plate. The side of the clamping plate facing away from the welding torch head is rotatably connected to the center of one end of a connecting column. The other end of the connecting column is fixedly connected to a horizontal adjustment assembly, which is slidably connected in a slide groove. The horizontal adjustment assembly includes a linear motor. Two plate slots are fixedly connected to both sides of the top surface of the linear motor. Two clamping plates are slidably inserted into the corresponding plate slots. Multiple clamping holes for inserting clamping plates are equidistantly opened in the slide groove along its length.

[0008] Furthermore, the lateral adjustment assembly includes a lifting rod, with both ends of the lifting rod fixedly connected to the top of the two clamping plates. The lifting rod is located above the plate groove, and the other end of the connecting column is fixedly connected to the top of the linear motor and is surrounded by the lifting rod and the top of the two clamping plates on three sides.

[0009] Furthermore, the lateral adjustment assembly includes mutually perpendicular support vertical plates and support foot plates. One end of the support vertical plate is rotatably connected to the middle of the lifting rod, and the other end of the support vertical plate is fixedly connected to the support foot plate.

[0010] Furthermore, the welding torch assembly includes a torch holder, a welding torch head is fixedly connected to the front of the torch holder, the top surface of the torch holder is fixedly connected to the extended end of the piston rod of the vertical hydraulic cylinder, and an air jet gun is fixedly connected to the bottom surface of the torch holder, with the nozzle of the air jet gun facing the welding torch head.

[0011] Furthermore, the base has a cable inlet slot located behind the gun base, into which the electrical wire and air pipe of the welding gun head and the air pipe of the jet gun are both introduced.

[0012] Furthermore, the welding machine assembly includes an industrial control computer and a solenoid valve. The industrial control computer is fixedly connected to the side of the base, and the solenoid valve is fixedly connected to the top surface of the base. The solenoid valve is electrically connected to the industrial control computer, and both the vertical hydraulic cylinder and the longitudinal hydraulic cylinder are pneumatically connected to the solenoid valve through air inlet and outlet pipes.

[0013] Furthermore, the clamping disc includes a central disc body and clamping claws, with five clamping claws fixedly connected to the circular edge of the central disc body, and the five clamping claws are evenly arranged around the center of the central disc body.

[0014] Furthermore, the support plate grid includes a support ring, which is detachably clamped by clamping claws. Multiple horizontal grids arranged side by side and multiple vertical grids arranged side by side are fixedly welded to each other and are all located within the ring of the support ring. Reinforcing strips are fixedly connected to the upper surfaces of multiple horizontal grids, and multiple lifting lugs are fixed to the upper surfaces of some horizontal grids.

[0015] Furthermore, the welding machine assembly includes a base, with the top surface of the base fixedly connected to a seat body, the bottom surface of the base fixedly connected to a base plate, and the bottom surface of the slide groove fixedly connected to the base plate.

[0016] This invention also claims a positioning and welding method using the above-described support grid positioning and welding device, comprising the following steps:

[0017] S101: The horizontal and vertical grids of the support plate grid are interlocked and arranged in the support ring, and then the support ring is clamped onto the clamping plate.

[0018] S102: Start the linear motor, and the transverse adjustment component slides transversely in the slide groove. At the same time, rotate the clamping plate so that the welding gun head of the welding gun assembly is facing the part of the horizontal and vertical grid to be welded.

[0019] S103: Move the support vertical plate so that the support foot plate is no longer supported on the top surface of the linear motor. The lifting rod moves downward, causing the card plate to slide down in the plate groove and insert into the card hole. The linear motor is then fixed.

[0020] S104: Start the longitudinal hydraulic cylinder to push the moving block to move longitudinally, and start the vertical hydraulic cylinder to push the welding gun assembly below the moving block to move, so that the welding gun head moves to the insertion and welding point of the horizontal and vertical grids for welding.

[0021] S105: Continue to alternately start the longitudinal hydraulic cylinder and the vertical hydraulic cylinder so that the welding gun head completes the welding of the horizontal and vertical grid joints in an inclined direction;

[0022] S106: Pull the card plate out of the card hole, start the linear motor to move the clamping assembly laterally until the welding gun head is facing other inclined surfaces on the support plate grid, and then complete the welding of the horizontal and vertical grid joints in other inclined directions.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention can facilitate welding of the central area of ​​the support plate grid. When performing welding operations on the support plate grid, firstly, the horizontal and vertical grids of the support plate grid are interlocked and arranged in the support ring, and then the support ring is clamped onto the clamping plate. The linear motor is started, and the horizontal adjustment component slides horizontally in the slide groove so that the welding gun head of the welding gun assembly is facing the part of the horizontal and vertical grids to be welded. The lifting rod moves downward, and the clamping plate fixedly connected to the lifting rod slides down and is inserted into the clamping hole. The linear motor is fixed. The longitudinal hydraulic cylinder is started to push the moving block to move longitudinally, and the vertical hydraulic cylinder is started to push the welding gun assembly below the moving block to move so that the welding gun head moves to the insertion point of the horizontal and vertical grids to be welded. After the welding gun head completes the welding of the horizontal and vertical grids in one inclined direction, the clamping plate is pulled out from the clamping hole, and the linear motor is started to make the clamping component move horizontally until the welding gun head is facing other inclined surfaces on the support plate grid. Then, the above operation is followed to complete the welding in other inclined directions. This avoids the risk of stepping on and pressing the surrounding grids when manually welding the central grid, thus improving welding quality and reducing the labor intensity of workers.

[0025] (2) In this invention, because the welding of each cross weld point of the horizontal and vertical grids on the support plate grid is achieved by pushing the welding gun assembly through the vertical hydraulic cylinder and the longitudinal hydraulic cylinder, the feed amount of each welding action is transmitted from the industrial control computer to the solenoid valve by the control signal, and then the solenoid valve controls the feed amount and feed speed of the vertical hydraulic cylinder and the longitudinal hydraulic cylinder, so as to ensure the consistency of the grid welding quality at each welding point, and improve the product welding quality and welding efficiency.

[0026] (3) In this invention, when the welding operation of the support plate grid is carried out, the contact ends of the horizontal and vertical grids with the inner wall of the support ring are first welded and fixed, and then the support ring is clamped onto the clamping plate. The entire support plate grid is clamped on the clamping claws of the clamping plate for welding. During clamping, the outer wall of the support ring and the clamping claws are interference fit. There is no need to manufacture the support plate grid in sections and then assemble and weld it on site, which ensures the grid alignment accuracy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a support grid positioning welding device according to the present invention;

[0028] Figure 2 This is a schematic diagram of a welding machine assembly structure for a support grid positioning welding device according to the present invention;

[0029] Figure 3 This is a schematic diagram of the clamping assembly structure of a support grid positioning welding device according to the present invention;

[0030] Figure 4 This is a schematic diagram of the clamping assembly of a support grid positioning welding device according to the present invention;

[0031] Figure 5 This is a partial structural schematic diagram of a support grid positioning welding device according to the present invention;

[0032] Figure 6 This is a schematic diagram of the support disk grid structure of a support disk grid positioning and welding device according to the present invention;

[0033] Figure 7 This is a flowchart of a positioning and welding method using a support disk grid positioning and welding device according to the present invention.

[0034] The attached figures are labeled as follows:

[0035] 100. Welding machine assembly; 101. Base; 102. Moving block; 103. Vertical hydraulic cylinder; 104. Longitudinal hydraulic cylinder; 105. Welding torch assembly; 1051. Torch holder; 1052. Welding torch head; 1053. Air gun; 106. Industrial computer; 107. Solenoid valve; 108. Cable inlet slot; 109. Base;

[0036] 200. Clamping assembly; 201. Clamping plate; 2011. Central plate; 2012. Clamping claw; 202. Connecting column; 203. Lateral adjustment assembly; 2031. Linear motor; 2032. Plate groove; 2033. Clamping plate; 2034. Lifting rod; 2035. Supporting vertical plate; 2036. Supporting foot plate; 204. Slide groove; 205. Clamping hole;

[0037] 300. Support plate grille; 301. Support ring; 302. Horizontal grille; 303. Vertical grille; 304. Reinforcing strip; 305. Lifting lug;

[0038] 400. Base plate. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] Although the steps in this invention are arranged with reference numerals, this is not intended to limit the order of the steps. Unless the order of the steps is explicitly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" as used herein refers to and covers any and all possible combinations of one or more of the associated listed items.

[0041] Example

[0042] like Figures 1-7As shown, a support grid positioning welding device includes a welding machine assembly 100. The welding machine assembly 100 includes a base 101. A longitudinal hydraulic cylinder 104 is fixedly connected to the rear end face of the base 101. The piston rod of the longitudinal hydraulic cylinder 104 passes through the base 101 and is fixedly connected to a moving block 102. The moving block 102 is located in front of the front end face of the base 101. A vertical hydraulic cylinder 103 is fixedly connected to the top surface of the moving block 102. The piston rod of the vertical hydraulic cylinder 103 passes through the moving block 102 and is fixedly connected to a welding torch assembly 105. The welding torch head 1052 of the welding torch assembly 105 faces the clamping plate 201 of the clamping assembly 200. The support grid 300 is detachably clamped on the clamping plate 201. The side of the clamping plate 201 facing away from the welding torch head 1052 is rotatably connected to the center of one end of the connecting column 202. The other end of the connecting column 202 is fixedly connected to the transverse adjustment assembly 203. The transverse adjustment assembly 203 is slidably connected in the slide groove 204. The transverse adjustment component 203 includes a linear motor 2031. Two plate slots 2032 are fixedly connected to both sides of the top surface of the linear motor 2031. Two locking plates 2033 are slidably inserted into the corresponding plate slots 2032. Multiple locking holes 205 for inserting the locking plates 2033 are equidistantly opened in the slide groove 204 along the length direction of the slide groove 204.

[0043] In this invention, because the welding of each cross welding point of the horizontal grid 302 and vertical grid 303 on the support plate grid 300 is achieved by pushing the welding gun assembly 105 through the vertical hydraulic cylinder 103 and the longitudinal hydraulic cylinder 104, the feed amount of each welding action is transmitted by the industrial control computer 106 to the solenoid valve 107, and then the solenoid valve 107 controls the feed amount and feed speed of the vertical hydraulic cylinder 103 and the longitudinal hydraulic cylinder 104, so as to ensure the consistency of grid welding quality at each welding point, and improve the product welding quality and welding efficiency.

[0044] Furthermore, the lateral adjustment assembly 203 includes a lifting rod 2034, with both ends of the lifting rod 2034 fixedly connected to the top of two clamping plates 2033 respectively. The lifting rod 2034 is located above the plate groove 2032. The other end of the connecting column 202 is fixedly connected to the top of the linear motor and is surrounded by the lifting rod 2034 and the top of the two clamping plates 2033 on three sides.

[0045] Furthermore, the lateral adjustment assembly 203 includes a vertical support plate 2035 and a support foot plate 2036 that are perpendicular to each other. One end of the vertical support plate 2035 is rotatably connected to the middle of the lifting rod 2034, and the other end of the vertical support plate 2035 is fixedly connected to the support foot plate 2036.

[0046] Furthermore, the welding torch assembly 105 includes a torch holder 1051, with a welding torch head 1052 fixedly connected to the front of the torch holder 1051, the top surface of the torch holder 1051 fixedly connected to the extended end of the piston rod of the vertical hydraulic cylinder 103, and a jet gun 1053 fixedly connected to the bottom surface of the torch holder 1051, with the nozzle of the jet gun 1053 facing the welding torch head 1052.

[0047] In this invention, the central area of ​​the support plate grid can be easily welded. During the welding operation of the support plate grid 300, the horizontal grid 302 and vertical grid 303 of the support plate grid 300 are first interlocked and arranged in the support ring 301. The horizontal grid 302 and vertical grid 303 are provided with grooves for interlocking. The contact ends of the horizontal grid 302 and vertical grid 303 with the inner wall of the support ring 301 are first welded and fixed. Then, the support ring 301 is clamped onto the clamping plate 201. The linear motor 2031 is started, and the transverse adjustment component 203 slides transversely in the slide groove 204. At the same time, the clamping plate 201 is rotated by the motor set inside the connecting column, so that the welding gun head 1052 of the welding gun assembly 105 is facing the part of the horizontal grid 302 and vertical grid 303 to be welded. By moving the support vertical plate 2035, the support foot plate 2036 is no longer supported on the top surface of the linear motor 2031, and the lifting rod 2034 can move downward. The clamping plate fixedly connected to the lifting rod 2034 2033 slides down in the slot 2032 and inserts into the clamping hole 205, and the linear motor 2031 is fixed. The longitudinal hydraulic cylinder 104 is activated to push the moving block 102 to move longitudinally, and the vertical hydraulic cylinder 103 is activated to push the welding gun assembly 105 below the moving block 102 to move, so that the welding gun head 1052 moves to the insertion and welding point of the horizontal grid 302 and the vertical grid 303 for welding. After completing the welding of one place, the longitudinal hydraulic cylinder 104 and the vertical hydraulic cylinder 103 are activated alternately to make the welding gun head 1052 complete the welding of the insertion point of the horizontal grid 302 and the vertical grid 303 in one inclined direction. The clamping plate 2033 is pulled out from the clamping hole 205. The linear motor 2031 is activated to make the clamping assembly 200 move laterally until the welding gun head 1052 is facing other inclined surfaces on the support plate grid 300. Then, the above operation is repeated to complete the welding of the insertion points of the horizontal grid 302 and the vertical grid 303 in other inclined directions. This avoids the risk of stepping on and pressing the surrounding grids when manually welding the central grid, thus improving welding quality and reducing the labor intensity of workers.

[0048] It is worth noting that the air gun 1053 moves synchronously with the welding gun head 1052, and the welding is carried out simultaneously with the blowing to remove the welding slag and oxide scale in time. This can effectively reduce the post-weld cleaning process, improve the surface quality of the weld, and reduce the risk of porosity and slag inclusion defects. Moreover, the air cooling of the air gun 1053 can control the temperature of the welding heat-affected zone to a certain extent and reduce the thermal deformation of the welded part.

[0049] Furthermore, the base 101 has a cable inlet slot 108, which is located behind the gun base 1051. The electrical wire and air pipe of the welding gun head 1052 and the air pipe of the air gun 1053 are both introduced into the cable inlet slot 108.

[0050] In this invention, the design of the inlet slot 108 can realize the centralized storage and management of the lines, avoid the wires and air pipes of the welding gun head 1052 and the air pipes of the air gun 1053 from getting tangled or interfering during the movement, improve the safety of equipment operation, reduce line wear and accidental pulling, facilitate equipment maintenance and troubleshooting, and keep the work area clean.

[0051] Furthermore, the welding machine assembly 100 includes an industrial control computer 106 and a solenoid valve 107. The industrial control computer 106 is fixedly connected to the side of the base 101, and the solenoid valve 107 is fixedly connected to the top surface of the base 101. The solenoid valve 107 is electrically connected to the industrial control computer 106, and the vertical hydraulic cylinder 103 and the longitudinal hydraulic cylinder 104 are both pneumatically connected to the solenoid valve 107 through air inlet and outlet pipes.

[0052] Furthermore, the clamping disk 201 includes a central disk body 2011 and clamping claws 2012. Five clamping claws 2012 are fixedly connected to the circular edge of the central disk body 2011 and are evenly arranged around the center of the central disk body 2011.

[0053] In this invention, during the welding operation of the support plate grid 300, the contact ends of the horizontal grid 302 and vertical grid 303 with the inner wall of the support ring 301 are first welded and fixed, and then the support ring 301 is clamped onto the clamping plate 201. The entire support plate grid 300 is clamped onto the clamping claws 2012 of the clamping plate 201 for welding. During clamping, the outer wall of the support ring 301 and the clamping claws 2012 are interference fit, eliminating the need to manufacture the support plate grid 300 in sections and then assemble and weld it on site, thus ensuring the grid alignment accuracy.

[0054] Furthermore, the support plate grid 300 includes a support ring 301, which is detachably clamped by a clamping claw 2012. Multiple horizontal grids 302 and multiple vertical grids 303 arranged side by side at intervals are fixedly welded to each other and are all located within the ring of the support ring 301. Reinforcing strips 304 are fixedly connected to the upper surface of multiple horizontal grids 302, and multiple lifting lugs 305 are fixed to the upper surface of some horizontal grids 302.

[0055] Furthermore, the welding machine assembly 100 includes a base 109, the top surface of which is fixedly connected to the seat body 101, the bottom surface of which is fixedly connected to the base plate 400, and the bottom surface of the slide groove 204 is fixedly connected to the base plate 400.

[0056] This invention also claims a positioning and welding method using the above-described support grid positioning and welding device, comprising the following steps:

[0057] S101: The horizontal grid 302 and vertical grid 303 of the support grid 300 are interlocked and arranged in the support ring 301, and then the support ring 301 is clamped onto the clamping plate 201.

[0058] S102: Start the linear motor 2031, and the transverse adjustment component 203 slides transversely in the slide groove 204. At the same time, rotate the clamping plate 201 so that the welding gun head 1052 of the welding gun assembly 105 is facing the part to be welded of the horizontal grid 302 and the vertical grid 303.

[0059] S103: Move the support vertical plate 2035 so that the support foot plate 2036 is no longer supported on the top surface of the linear motor 2031. The lifting rod 2034 moves downward, causing the card plate 2033 to slide down in the plate groove 2032 and insert into the card hole 205. The linear motor 2031 is fixed.

[0060] S104: Start the longitudinal hydraulic cylinder 104 to push the moving block 102 to move longitudinally, and start the vertical hydraulic cylinder 103 to push the welding gun assembly 105 below the moving block 102 to move, so that the welding gun head 1052 moves to the insertion welding point of the horizontal grid 302 and the vertical grid 303 for welding.

[0061] S105: Continue to alternately start the longitudinal hydraulic cylinder 104 and the vertical hydraulic cylinder 103 so that the welding gun head 1052 completes the welding of the joint between the horizontal grid 302 and the vertical grid 303 in an inclined direction.

[0062] S106: Pull the card plate 2033 out of the card hole 205, start the linear motor 2031 to move the clamping assembly 200 laterally until the welding gun head 1052 is facing other inclined surfaces on the support plate grid 300, and then complete the welding at the joints of the horizontal grid 302 and vertical grid 303 in other inclined directions.

[0063] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A support grid positioning welding device, characterized in that, The assembly includes a welding machine component (100), which includes a base (101). A longitudinal hydraulic cylinder (104) is fixedly connected to the rear end face of the base (101). The piston rod of the longitudinal hydraulic cylinder (104) passes through the base (101) and is fixedly connected to a moving block (102). The moving block (102) is located in front of the front end face of the base (101). A vertical hydraulic cylinder (103) is fixedly connected to the top surface of the moving block (102). The piston rod of the vertical hydraulic cylinder (103) passes through the moving block (102) and is connected to the welding torch. The component (105) is fixedly connected, the welding gun head (1052) of the welding gun assembly (105) faces the clamping plate (201) of the clamping assembly (200), the support plate grid (300) is detachably clamped on the clamping plate (201), the side of the clamping plate (201) facing away from the welding gun head (1052) is rotatably connected to the center of one end of the connecting column (202), the other end of the connecting column (202) is fixedly connected to the transverse adjustment assembly (203), and the transverse adjustment assembly (203) is slidably connected in the slide groove (204); The transverse adjustment assembly (203) includes a linear motor (2031), two plate slots (2032) are fixedly connected to both sides of the top surface of the linear motor (2031), and two locking plates (2033) are slidably inserted into the corresponding plate slots (2032). Multiple locking holes (205) for inserting the locking plates (2033) are equidistantly opened in the slide groove (204) along the length direction of the slide groove (204).

2. The support grid positioning welding device according to claim 1, characterized in that, The lateral adjustment assembly (203) includes a lifting rod (2034), with both ends of the lifting rod (2034) fixedly connected to the top of two clamping plates (2033). The lifting rod (2034) is located above the plate groove (2032), and the other end of the connecting column (202) is fixedly connected to the top of the linear motor and is surrounded by the lifting rod (2034) and the top of the two clamping plates (2033) on three sides.

3. The support grid positioning welding device according to claim 2, characterized in that, The horizontal adjustment assembly (203) includes a vertical support plate (2035) and a support foot plate (2036) that are perpendicular to each other. One end of the vertical support plate (2035) is rotatably connected to the middle of the lifting rod (2034), and the other end of the vertical support plate (2035) is fixedly connected to the support foot plate (2036).

4. The support grid positioning and welding device according to claim 1, characterized in that, The welding torch assembly (105) includes a torch holder (1051), a welding torch head (1052) is fixedly connected to the front of the torch holder (1051), the top surface of the torch holder (1051) is fixedly connected to the extended end of the piston rod of the vertical hydraulic cylinder (103), and a jet gun (1053) is fixedly connected to the bottom surface of the torch holder (1051), with the nozzle of the jet gun (1053) facing the welding torch head (1052).

5. The support grid positioning and welding device according to claim 4, characterized in that, The base (101) has a wire inlet slot (108) located behind the gun base (1051). The wire inlet slot (108) is used to guide the electrical wire pipe of the welding gun head (1052) and the air pipe of the air gun (1053).

6. The support grid positioning and welding device according to claim 1, characterized in that, The welding machine assembly (100) includes an industrial control computer (106) and a solenoid valve (107). The industrial control computer (106) is fixedly connected to the side of the base (101), and the solenoid valve (107) is fixedly connected to the top surface of the base (101). The solenoid valve (107) is electrically connected to the industrial control computer (106). The vertical hydraulic cylinder (103) and the longitudinal hydraulic cylinder (104) are pneumatically connected to the solenoid valve (107) through air inlet and outlet pipes.

7. The support grid positioning and welding device according to claim 1, characterized in that, The clamping disk (201) includes a central disk body (2011) and clamping claws (2012). Five clamping claws (2012) are fixedly connected to the circular edge of the central disk body (2011) and are evenly arranged around the center of the central disk body (2011).

8. The support grid positioning welding device according to claim 1, characterized in that, The support grid (300) includes a support ring (301), which is detachably clamped by a clamping claw (2012). Multiple horizontal grids (302) and multiple vertical grids (303) arranged side by side are fixedly welded to each other and are all located within the ring of the support ring (301). Reinforcing strips (304) are fixedly connected to the upper surface of multiple horizontal grids (302), and multiple lifting lugs (305) are fixed to the upper surface of some horizontal grids (302).

9. The support grid positioning welding device according to claim 1, characterized in that, The welding machine assembly (100) includes a base (109), the top surface of which is fixedly connected to a seat body (101), the bottom surface of which is fixedly connected to a base plate (400), and the bottom surface of a slide groove (204) is fixedly connected to the base plate (400).

10. A positioning and welding method using the support disk grid positioning and welding device according to any one of claims 1 to 9, characterized in that, Includes the following steps: S101: The horizontal grid (302) and vertical grid (303) of the support plate grid (300) are interlocked and arranged in the support ring (301), and then the support ring (301) is clamped onto the clamping plate (201); S102: Start the linear motor (2031), the transverse adjustment component (203) slides transversely in the slide groove (204), and at the same time rotate the clamping plate (201) so that the welding gun head (1052) of the welding gun assembly (105) is facing the part to be welded of the horizontal grid (302) and the vertical grid (303); S103: Move the support vertical plate (2035) so that the support foot plate (2036) is no longer supported on the top surface of the linear motor (2031), the lifting rod (2034) moves downward and drives the card plate (2033) to slide down in the plate groove (2032) and insert into the card hole (205), and the linear motor (2031) is fixed. S104: Start the longitudinal hydraulic cylinder (104) to push the moving block (102) to move longitudinally, start the vertical hydraulic cylinder (103) to push the welding gun assembly (105) below the moving block (102) to move, so that the welding gun head (1052) moves to the insertion welding point of the horizontal grid (302) and the vertical grid (303) for welding; S105: Continue to alternately start the longitudinal hydraulic cylinder (104) and the vertical hydraulic cylinder (103) so that the welding gun head (1052) completes the welding of the joint of the horizontal grid (302) and the vertical grid (303) in an inclined direction; S106: Pull the card plate (2033) out of the card hole (205), start the linear motor (2031) to move the clamping assembly (200) laterally until the welding gun head (1052) is facing other slopes on the support plate grid (300), and then complete the welding of the horizontal grid (302) and vertical grid (303) joints in other slope directions.

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