A welding device for shelf processing and production

Abstract

The present invention discloses a welding device for processing and producing shelves, comprising a support unit and a shaping unit. The support unit comprises an outer frame, wherein the four corners of the bottom of the outer frame are fixed with support feet, two first mounting beams are fixed in the outer frame, and a rectangular frame is fixed on one side of the first mounting beam. When the movable plate moves downward, not only the second contact plate clamps the shelf column in the second storage cavity, but also the first contact plate clamps the first shelf beam in the first storage cavity, and also the third contact plate clamps the second shelf beam in the third piston, that is, the shelf column, the first shelf beam, and the second shelf beam can be fixed synchronously. When the shelf column, the first shelf beam, and the second shelf beam are fixed synchronously, the splicing of the entire shelf frame is completed, and the overall welding can be performed without multiple local welding. The device can complete the splicing of the entire outer frame at one time, which is convenient for welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to a welding device for shelf processing and production. Background Art

[0002] Shelves generally refer to racks for storing goods. Shelves are storage equipment used to store piece items. According to their uses, they can be divided into supermarket shelves, storage shelves, display shelves, and storage shelves are divided into light shelves, medium shelves, heavy shelves, etc.

[0003] Publication number CN 118650342 A discloses a welding device for manufacturing steel pipe racks. During the welding process, the rack crossbars remain vertically positioned within the transition sleeve, eliminating the need for manual support and improving welding efficiency. The transition sleeve can be rotated to either a horizontal or vertical position. When set horizontally, the transition sleeve facilitates the insertion and loading of the rack crossbars, making it convenient and easy to operate. Publication number CN 118357622 A discloses a rack crossbeam welding device. Two movable plates move relative to each other, driving two fixed rods to move. The two fixed rods drive the hinged rods to move, driving the slider to slide along the inner wall of a cross-arc groove. The slider drives the struts to move. Under the combined action of the struts and slide rods, the two clamping plates approach each other to clamp and secure the front and rear sides of the rack crossbeam. Based on the fixing mechanism securing the rack crossbeam, the fixing mechanism further secures the rack crossbeam, making it less likely to deflect during welding and improving welding quality.

[0004] A shelf usually includes four shelf columns and several shelf beams. When welding the shelf, several shelf beams need to be welded to the shelf columns in sequence. Although the two prior arts disclosed above are convenient for clamping and fixing the shelf columns and shelf beams, thereby facilitating welding of the shelf columns and shelf beams, the prior arts disclosed above only clamp and fix a certain shelf column and a certain shelf beam at a time. After welding, the shelf columns and shelf beams need to be removed, and then the other shelf beams and shelf columns need to be welded. Since each welding is only performed on one of the shelf columns and shelf beams, only part of the shelf can be welded each time. Afterwards, multiple shelves that have been welded need to be assembled and welded again, so that the parts of multiple shelves are welded together as a whole before the welding of the shelf is completed. The overall operation process is cumbersome and inefficient. Summary of the Invention

[0005] (1) Purpose of the invention

[0006] In view of this, the purpose of the invention is to propose a welding device for shelf processing and production. The technical problem to be solved is that the existing technology clamps and fixes a certain shelf column and a certain shelf beam at a time. After welding, the shelf column and the shelf beam need to be removed, and then the other shelf beams and shelf columns need to be welded. Since each welding is only performed on one of the shelf columns and shelf beams, only part of the shelf can be welded each time. Afterwards, multiple shelves with partially completed welding need to be assembled and welded again, so that the parts of multiple shelves are welded together as a whole to complete the welding of the shelves. The overall operation process is cumbersome and inefficient.

[0007] (2) Technical solution

[0008] In order to achieve the above technical objectives, the invention provides a welding device for shelf processing and production:

[0009] The support frame is fixed with two support legs at four corners at the bottom of the outer frame, and two first mounting beams are fixed in the outer frame, and a rectangular frame is fixed on one side of the first mounting beam, and the rectangular frame is slidably connected to two shelf columns, and a first shelf crossbeam is provided between the two shelf columns in the same rectangular frame, and a second shelf crossbeam is provided between the two shelf columns in different rectangular frames. The support frame comprises two first vertical plates, the two first vertical plates are respectively fixed to the corresponding first mounting beams, and the second inner concave plates are slidably connected in the second inner concave plates, and a second interference plate is slidably connected in the second inner concave plates, and a second storage cavity for the shelf columns to pass through is formed between the second interference plate and the inner wall of one side of the rectangular frame, and a first U-shaped plate is fixed on the top of the first vertical plate, and a first inner concave plate is provided in the first U-shaped plate, and the first inner concave plate is slidably connected in the first interference plate, and a first storage cavity for the first shelf crossbeam to pass through is formed between the first interference plate and the inner wall of one side of the first U-shaped plate. Two second mounting beams are commonly fixed between a mounting beam, a second vertical plate is fixed on the second mounting beam, a second U-shaped plate is fixed on the top of the second vertical plate, a third inner concave plate is provided in the second U-shaped plate, a third interference plate is slidably connected to the third inner concave plate, a third storage cavity for the second crossbeam of the shelf to pass through is formed between the inner wall of one side of the third interference plate and the second U-shaped plate, a first-stage driving assembly for driving the second inner concave plate to move is provided on one side of the first vertical plate, when the second inner concave plate moves, the second interference plate can clamp the shelf column in the second storage cavity, a second-stage driving assembly for driving the first inner concave plate to move is provided on one side of the first U-shaped plate, when the first inner concave plate moves, the first interference plate can clamp the first crossbeam of the shelf in the first storage cavity, a third-stage driving assembly for driving the third inner concave plate to move is provided on one side of the second U-shaped plate, when the cylinder moves, the third interference plate can clamp the second crossbeam of the shelf in the third storage cavity, and when the first-stage driving assembly is working, it can synchronously drive the second-stage driving assembly and the third-stage driving assembly to work.

[0010] Preferably, a movable sleeve is slidably connected to the outside of one side plate of the outer frame, a vertical plate is fixed on the top of the movable sleeve, a horizontal plate is fixed on the top of the vertical plate, a welding device is provided under the horizontal plate, a first spring is fixed on the welding device, and the end of the first spring away from the welding device is fixed to the horizontal plate.

[0011] Preferably, vertical poles are fixed at the two corners of the top of the outer frame, and a limiting rod is fixed between the two vertical poles. The limiting rod passes through the vertical plate, and the vertical plate slides outside the limiting rod.

[0012] Preferably, a chassis is provided below the outer frame, a plurality of first connecting rods are fixed to the outside of the chassis, an end of the first connecting rod away from the chassis is fixed to the corresponding supporting foot, a hydraulic cylinder is installed on the chassis, a circular disc is fixed to the extended end of the hydraulic cylinder, a plurality of second connecting rods are fixed to the outside of the circular disc, a support disc is fixed to the end of the second connecting rod away from the circular disc, and the plurality of support discs are respectively used to support corresponding shelf columns.

[0013] Preferably, the first-stage drive assembly includes an extension plate fixed to the bottom of the first vertical plate, a first tooth plate is fixed on the extension plate, the top of the first tooth plate and the bottom of the first U-shaped plate are fixed, a movable plate is slidably connected to the outer side of the first tooth plate, first hinge seats are fixed on both sides of the movable plate, a second hinge seat is fixed on the top of the second concave plate, and a rotating rod is hinged between the first hinge seat and the corresponding second hinge seat.

[0014] Preferably, a first travel groove is provided at the top and bottom of the second concave plate, a first protrusion is fixed at the top and bottom of the second contact plate, the first protrusion slides in the corresponding first travel groove, a second spring is provided in the second concave plate, one end of the second spring abuts against the inner wall of the second concave plate, the other end of the second spring abuts against the second contact plate, limiting grooves are provided on the inner walls on both sides of the rectangular frame, limiting blocks are fixed on both sides of the second concave plate, and the limiting blocks slide in the corresponding limiting grooves.

[0015] Preferably, a through groove for sliding of the first tooth plate is provided in the movable plate, and an inner cavity is also provided in the movable plate, and the inner cavity and the through groove are communicated, a second tooth plate is slidably connected in the inner cavity, the second tooth plate and the first tooth plate are meshed with each other, a pull rod is fixed on one side of the second tooth plate, the pull rod passes through the movable plate and slides in the movable plate, a fifth spring is sleeved on the outside of the pull rod, and one end of the fifth spring is against the second tooth plate, and the other end of the fifth spring is against the inner wall of the inner cavity.

[0016] Preferably, a straight pipe is fixed on the first U-shaped plate, one end of the straight pipe is fixed to and connected with a connecting pipe, a bent pipe is fixed to the second U-shaped plate, one end of the bent pipe away from the second U-shaped plate is fixed to and connected with the connecting pipe, a cylinder is fixed on the extension plate, a third piston is sealingly and slidingly connected inside the cylinder, a piston rod is fixed to the top of the third piston, a pressure plate is fixed to the top of the piston rod, one end of the pressure plate is fixed to the movable plate, an L-shaped gas pipe is fixed to the bottom of the cylinder and connected, the L-shaped gas pipe passes through the second vertical plate and is fixed to and connected with the corresponding connecting pipe.

[0017] Preferably, the secondary drive assembly includes a first piston that slides in a sealed manner in a straight tube, a first push rod is fixed to one side of the first piston, one end of the first push rod is fixed to the first inner concave plate, second travel grooves are provided on both sides of the first inner concave plate, second bosses are fixed on both sides of the first contact plate, the second bosses slide in the corresponding second travel grooves, a third spring is provided in the first inner concave plate, one end of the third spring is against the inner wall of the first inner concave plate, and the other end of the third spring is against the first contact plate.

[0018] Preferably, the three-stage drive assembly includes a second piston that slides in a sealed manner in the curved tube, a second push rod is fixed to one side of the second piston, one end of the second push rod is fixed to the third inner concave plate, third travel grooves are provided on both sides of the third inner concave plate, third bosses are fixed on both sides of the third resistance plate, the third bosses slide in the corresponding third travel grooves, a fourth spring is provided in the third inner concave plate, one end of the fourth spring is against the inner wall of the third inner concave plate, and the other end of the fourth spring is against the third resistance plate.

[0019] (3) From the above technical solutions, it can be seen that this application has the following beneficial effects compared with the prior art:

[0020] The present invention places four shelf columns in the corresponding second storage cavities in sequence, then places the first shelf beam in the first storage cavity, and then places the second shelf beam in the third storage cavity, and then pulls the pull rod to drive the second tooth plate to move. When the second tooth plate and the first tooth plate are separated, the movable plate is moved downward to drive the rotating rod to rotate. When the rotating rod rotates, it drives the second concave plate and the second contact plate to move, so that the second contact plate clamps the shelf column in the second storage cavity, that is, the position of the shelf column is fixed.

[0021] Furthermore, in the present invention, when the movable plate moves downward, it drives the pressure plate, the piston rod, and the third piston to move downward. When the third piston moves downward, it squeezes the air in the cylinder into the L-shaped air pipe, so that the air in the L-shaped air pipe is squeezed into the connecting pipe, and the air in the connecting pipe is squeezed into the curved pipe and the straight pipe. When part of the air is squeezed into the straight pipe, the air will squeeze the first piston and drive the first piston, the first push rod, the first concave plate, and the first resistance plate, so that the first resistance plate clamps the first crossbeam of the shelf in the first storage cavity, and when part of the air is squeezed into the curved tube, the air will squeeze the second piston and drive the second piston, the second push rod, the third concave plate, and the third resistance plate to move, so that the third resistance plate clamps the second crossbeam of the shelf in the third storage cavity. In the storage cavity, that is, when the movable plate moves downward, the effect it produces is not only to make the second contact plate clamp the shelf column in the second storage cavity, but also to make the first contact plate clamp the first beam of the shelf in the first storage cavity, and to make the third contact plate clamp the second beam of the shelf in the third storage cavity, that is, the shelf column, the first beam of the shelf, and the second beam of the shelf can be fixed at the same time. When the shelf column, the first beam of the shelf, and the second beam of the shelf are fixed at the same time, the splicing of the entire frame of the shelf is completed, and the overall welding can be carried out without multiple local splicing and welding. The device can complete the positioning and splicing of the entire outer frame at one time, which is convenient for welding work and improves the efficiency of shelf welding.

[0022] Furthermore, the shelf columns, the first crossbeam of the shelf, and the second crossbeam of the shelf can be fixed simultaneously, which can achieve precise docking without repeatedly adjusting any of the components to cause deformation and dislocation of the overall structure, especially during the welding process. Since the temperature of the welding part is high and there is internal stress, if the position of a component is fine-tuned and welded again at this time, the internal stress of the overall structure will further increase, reducing the stability of the overall structure of the shelf. Therefore, this solution can avoid fine-tuning the position of any component during welding, thereby avoiding the increase in the internal stress of the overall structure after welding due to fine-tuning, and thus can improve the overall welding quality of the shelf. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of a welding device for shelf processing and production provided by the invention;

[0025] Figure 2A schematic structural diagram of another perspective of a welding device for shelf processing and production provided by the invention;

[0026] Figure 3 A schematic diagram of the partial structure of a welding device for shelf processing and production provided by the invention;

[0027] Figure 4 Provided for the invention Figure 3 Schematic diagram of the structure at A in the middle;

[0028] Figure 5 A partial structural cross-sectional view of a welding device for shelf processing and production provided by the invention;

[0029] Figure 6 Provided for the invention Figure 5 Schematic diagram of the structure at D in the middle;

[0030] Figure 7 A partial structural cross-sectional view of a welding device for shelf processing and production provided by the invention;

[0031] Figure 8 Provided for the invention Figure 7 Schematic diagram of the structure at B in the middle;

[0032] Figure 9 A partial structural cross-sectional view of a welding device for shelf processing and production provided by the invention;

[0033] Figure 10 Provided for the invention Figure 9 Schematic diagram of the structure at C in the middle;

[0034] Figure 11 A partial structural cross-sectional view of a welding device for shelf processing and production provided by the invention;

[0035] Figure 12 Provided for the invention Figure 11 Schematic diagram of the structure at E in the middle.

[0036] Description of the drawings: 100, support unit; 101, outer frame; 102, support foot; 103, first mounting beam; 104, rectangular frame; 105, shelf column; 106, first shelf beam; 107, second shelf beam; 108, vertical plate; 109, horizontal plate; 110, welding equipment; 111, first spring; 112, movable sleeve; 113, chassis; 114, first connecting rod; 115, hydraulic cylinder; 116, disc; 117, first Second connecting rod; 118, support plate; 119, vertical rod; 120, limiting rod; 121, second mounting beam; 122, second vertical plate; 123, second U-shaped plate; 200, shaping unit; 201, first vertical plate; 202, first U-shaped plate; 203, first inner concave plate; 204, first contact plate; 205, first storage cavity; 206, second inner concave plate; 207, second contact plate; 208, second storage cavity; 209, limiting slot; 21 0, limit block; 211, extension plate; 212, first tooth plate; 213, moving plate; 214, first hinge seat; 215, second hinge seat; 216, rotating rod; 217, first boss; 218, first travel groove; 219, second spring; 220, inner cavity; 221, second tooth plate; 222, pull rod; 223, cylinder; 224, curved pipe; 225, straight pipe; 226, connecting pipe; 227, L-shaped gas pipe; 228, third Spring; 229, second travel groove; 230, second boss; 231, first push rod; 232, first piston; 233, third concave plate; 234, third contact plate; 235, fourth spring; 236, third boss; 237, third travel groove; 238, second push rod; 239, second piston; 240, third storage chamber; 241, piston rod; 242, pressure plate; 243, through groove; 244, fifth spring; 245, third piston. DETAILED DESCRIPTION

[0037] The following description is merely illustrative in nature and is not intended to limit the present disclosure, its applications, or uses. It should be understood that throughout the drawings, identical or similar reference numerals indicate identical or similar parts and features. The drawings merely schematically illustrate the concepts and principles of the embodiments of the present disclosure and do not necessarily depict the specific dimensions and proportions of the various embodiments of the present disclosure. Certain portions of certain drawings may be exaggerated to illustrate relevant details or structures of the embodiments of the present disclosure.

[0038] Reference Figure 1-12 :

[0039] Example 1

[0040] A welding device for shelf processing and production includes a support unit 100 and a shaping unit 200. The support unit 100 includes an outer frame 101. Support legs 102 are fixed to the four corners of the bottom of the outer frame 101. Two first mounting beams 103 are fixed in the outer frame 101. A rectangular frame 104 is fixed to one side of the first mounting beam 103. Two shelf columns 105 are slidably connected in the rectangular frame 104. A first shelf beam 106 is provided between the two shelf columns 105 in the same rectangular frame 104. Different rectangular frames are fixed to the outer frame 101. A second shelf crossbeam 107 is provided between the two shelf uprights 105 within the rectangular frame 104. The shaping unit 200 includes two first upright plates 201, which are respectively fixed to corresponding first mounting beams 103. Two second inner concave plates 206 are slidably connected within the rectangular frame 104. A second contact plate 207 is slidably connected within the second inner concave plates 206. A second storage cavity 208 for the shelf uprights 105 to pass through is formed between the second contact plate 207 and the inner wall of one side of the rectangular frame 104.

[0041] A first U-shaped plate 202 is fixed to the top of the first vertical plate 201, a first inner concave plate 203 is provided in the first U-shaped plate 202, a first contact plate 204 is slidably connected to the first inner concave plate 203, a first storage cavity 205 for the first crossbeam 106 of the shelf to pass through is formed between the first contact plate 204 and the inner wall of one side of the first U-shaped plate 202, two second mounting beams 121 are commonly fixed between the two first mounting beams 103, a second vertical plate 122 is fixed on the second mounting beam 121, a second U-shaped plate 123 is fixed on the top of the second vertical plate 122, a third inner concave plate 233 is provided in the second U-shaped plate 123, a third contact plate 234 is slidably connected to the third inner concave plate 233, and a third storage cavity 240 for the second crossbeam 107 of the shelf to pass through is formed between the third contact plate 234 and the inner wall of one side of the second U-shaped plate 123;

[0042] A primary drive assembly for driving the second concave plate 206 to move is provided on one side of the first vertical plate 201. When the second concave plate 206 moves, the second contact plate 207 can clamp the shelf column 105 in the second storage cavity 208. A secondary drive assembly for driving the first concave plate 203 to move is provided on one side of the first U-shaped plate 202. When the first concave plate 203 moves, the first contact plate 204 can clamp the first beam 106 of the shelf in the first storage cavity 205. A tertiary drive assembly for driving the third concave plate 233 to move is provided on one side of the second U-shaped plate 123. When the cylinder 223 moves, the third contact plate 234 can clamp the second beam 107 of the shelf in the third storage cavity 240. When the primary drive assembly is working, it can synchronously drive the secondary drive assembly and the tertiary drive assembly to work.

[0043] Among them, one side plate of the outer frame 101 is slidably connected to a movable sleeve 112, a vertical plate 108 is fixed on the top of the movable sleeve 112, a horizontal plate 109 is fixed on the top of the vertical plate 108, a welding device 110 is provided below the horizontal plate 109, a first spring 111 is fixed on the welding device 110, and the end of the first spring 111 away from the welding device 110 is fixed to the horizontal plate 109, and vertical poles 119 are fixed at the two corners of the top of the outer frame 101. A limit rod 120 is fixed between the two vertical poles 119. The limit rod 120 passes through the vertical plate 108, and the vertical plate 108 is positioned at the bottom. Sliding on the outside of the limit rod 120, a chassis 113 is provided under the outer frame 101, and a plurality of first connecting rods 114 are fixed to the outside of the chassis 113. The end of the first connecting rod 114 away from the chassis 113 is fixed to the corresponding supporting foot 102. A hydraulic cylinder 115 is installed on the chassis 113, and a disc 116 is fixed to the extended end of the hydraulic cylinder 115. A plurality of second connecting rods 117 are fixed to the outside of the disc 116, and a support plate 118 is fixed to the end of the second connecting rod 117 away from the disc 116. The plurality of support plates 118 are respectively used to support the corresponding shelf columns 105.

[0044] Furthermore, the first-stage drive assembly includes an extension plate 211 fixed to the bottom of the first vertical plate 201, a first tooth plate 212 is fixed on the extension plate 211, the top of the first tooth plate 212 is fixed to the bottom of the first U-shaped plate 202, a movable plate 213 is slidably connected to the outer side of the first tooth plate 212, a first hinge seat 214 is fixed on both sides of the movable plate 213, a second hinge seat 215 is fixed on the top of the second concave plate 206, a rotating rod 216 is hinged between the first hinge seat 214 and the corresponding second hinge seat 215, and the top and bottom of the second concave plate 206 are both opened. There is a first travel groove 218, and first bosses 217 are fixed on the top and bottom of the second contact plate 207. The first bosses 217 slide in the corresponding first travel groove 218. A second spring 219 is provided in the second concave plate 206. One end of the second spring 219 abuts against the inner wall of the second concave plate 206, and the other end of the second spring 219 abuts against the second contact plate 207. Limiting grooves 209 are provided on the inner walls of both sides of the rectangular frame 104, and limiting blocks 210 are fixed on both sides of the second concave plate 206. The limiting blocks 210 slide in the corresponding limiting grooves 209.

[0045] When in use, first place the four shelf columns 105 in turn into the corresponding second storage cavity 208, so that the bottom of the shelf column 105 is in contact with the top of the support plate 118, then place the first shelf beam 106 into the first storage cavity 205, and then place the second shelf beam 107 into the third storage cavity 240, and then pull the pull rod 222 to drive the second tooth plate 221 to move toward the inner cavity 220. At this time, the second tooth plate 221 will compress the fifth spring 244. When the second tooth plate 221 and the first tooth plate 212 are separated, the movable plate 213 can be lowered. When the movable plate 213 moves downward, it drives the rotating rod 216 to rotate. When the rotating rod 216 rotates, it drives the second concave plate 206 and the second contact plate 207 to move, so that the second contact plate 207 clamps the shelf column 105 in the second storage cavity 208, and then releases the pull rod 222. At this time, under the rebound force of the fifth spring 244, the second tooth plate 221 and the first tooth plate 212 are engaged, that is, the movable plate 213, the rotating rod 216, the second concave plate 206, and the second contact plate 207 are fixed, so that the positions of multiple shelf columns 105 are fixed.

[0046] Example 2

[0047] A welding device for shelf processing and production, based on the first embodiment, a through groove 243 for the sliding of the first tooth plate 212 is provided in the movable plate 213, and an inner cavity 220 is also provided in the movable plate 213, and the inner cavity 220 and the through groove 243 are connected, and a second tooth plate 221 is slidably connected in the inner cavity 220, and the second tooth plate 221 is meshed with the first tooth plate 212, and a pull rod 222 is fixed on one side of the second tooth plate 221, and the pull rod 222 passes through the movable plate 213 and slides in the movable plate 213, and a fifth spring 244 is sleeved on the outside of the pull rod 222, and one end of the fifth spring 244 is against the second tooth plate 221, and the other end of the fifth spring 244 is against the inner wall of the inner cavity 220, and the first U-shaped plate A straight pipe 225 is fixed on 202, and one end of the straight pipe 225 is fixed to and connected with a connecting pipe 226. A curved pipe 224 is fixed on the second U-shaped plate 123, and one end of the curved pipe 224 away from the second U-shaped plate 123 is fixed to and connected with the connecting pipe 226. A cylinder 223 is fixed on the extension plate 211, and a third piston 245 is sealed and slidably connected inside the cylinder 223. A piston rod 241 is fixed to the top of the third piston 245, and a pressure plate 242 is fixed to the top of the piston rod 241. One end of the pressure plate 242 is fixed to the movable plate 213. An L-shaped gas pipe 227 is fixed to and connected with the bottom of the cylinder 223. The L-shaped gas pipe 227 passes through the second vertical plate 122 and is fixed to and connected with the corresponding connecting pipe 226.

[0048] In addition, the secondary drive assembly includes a first piston 232 that slides in a sealed manner in the straight tube 225, a first push rod 231 is fixed to one side of the first piston 232, one end of the first push rod 231 is fixed to the first inner concave plate 203, second travel grooves 229 are provided on both sides of the first inner concave plate 203, second bosses 230 are fixed on both sides of the first contact plate 204, the second bosses 230 slide in the corresponding second travel grooves 229, a third spring 228 is provided in the first inner concave plate 203, one end of the third spring 228 is against the inner wall of the first inner concave plate 203, and the other end of the third spring 228 is against the first contact plate 204.

[0049] In addition, the three-stage drive assembly includes a second piston 239 that slides in a sealed manner in the curved tube 224, a second push rod 238 is fixed to one side of the second piston 239, one end of the second push rod 238 is fixed to the third inner concave plate 233, third travel grooves 237 are provided on both sides of the third inner concave plate 233, third bosses 236 are fixed on both sides of the third contact plate 234, the third bosses 236 slide in the corresponding third travel grooves 237, a fourth spring 235 is provided in the third inner concave plate 233, one end of the fourth spring 235 is against the inner wall of the third inner concave plate 233, and the other end of the fourth spring 235 is against the third contact plate 234.

[0050] During use, when the movable plate 213 moves downward, it drives the pressing plate 242 downward, and when the pressing plate 242 moves downward, it drives the piston rod 241 and the third piston 245 downward. When the third piston 245 moves downward, it squeezes the air in the cylinder 223 into the L-shaped air pipe 227. The air in the L-shaped air pipe 227 is squeezed into the connecting pipe 226. The air in the connecting pipe 226 is squeezed into the curved pipe 224 and the straight pipe 225. When part of the air in the connecting pipe 226 is squeezed into the straight pipe 225, the air in the straight pipe 225 squeezes the first piston 232 and drives the first piston 232 to move. When the first piston 232 moves, it drives the first push rod 231 to move, and then drives the first inner concave plate 203 and the first contact plate 204, so that the first contact plate 204 clamps the first crossbeam 106 of the shelf in the first storage cavity 205.

[0051] When part of the air in the connecting pipe 226 is squeezed into the curved pipe 224, the air in the curved pipe 224 squeezes the second piston 239 and drives the second piston 239 to move. When the second piston 239 moves, it drives the second push rod 238 to move. When the second push rod 238 moves, it drives the third inner concave plate 233 and the third contact plate 234 to move, so that the third contact plate 234 clamps the second crossbeam 107 of the shelf in the third storage cavity 240. That is, when the movable plate 213 moves downward, not only the second contact plate 207 clamps the shelf column 105, but also the second contact plate 207 clamps the shelf column 105. In the second storage cavity 208, the first contact plate 204 clamps the first shelf beam 106 in the first storage cavity 205, and the third contact plate 234 clamps the second shelf beam 107 in the third storage cavity 240. That is, the shelf columns 105, the first shelf beam 106, and the second shelf beam 107 can be fixed synchronously. At this time, the shelf columns 105, the first shelf beam 106, and the second shelf beam 107 form the overall frame of the shelf. Then, the welding device 110 is pulled down to perform welding.

[0052] After the first crossbeam 106, the second crossbeam 107 and the column 105 of the same layer are welded, the movable plate 213 is moved upward so that the second contact plate 207 no longer clamps the column 105, and the first contact plate 204 no longer clamps the first crossbeam 106 of the shelf, and the third contact plate 234 no longer clamps the second crossbeam 107 of the shelf. Then the hydraulic cylinder 115 extends to drive the disc 116, the second connecting rod 117 and the support plate 118 to move upward, thereby driving the welded column 105, the first crossbeam 106 and the second crossbeam 107 of the shelf to move upward as a whole. Then the first crossbeam 106 and the second crossbeam 107 of the shelf that need to be newly welded are placed in the corresponding first storage cavity 205 and the third piston 245. Then the movable plate 213 is moved downward so that the column 105 and the newly replaced first crossbeam 106 and the second crossbeam 107 of the shelf can be fixed synchronously again, and welding can be performed again.

[0053] The exemplary implementation schemes proposed in the present disclosure are described in detail above with reference to preferred embodiments. However, it will be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the scope of protection of the present disclosure, which is determined by the appended claims.

Claims

1. A welding device for shelf processing and production, characterized in that: include: A support unit (100) comprises an outer frame (101), support legs (102) are fixed to the four corners of the bottom of the outer frame (101), two first mounting beams (103) are fixed in the outer frame (101), a rectangular frame (104) is fixed on one side of the first mounting beam (103), two shelf columns (105) are slidably connected in the rectangular frame (104), a first shelf crossbeam (106) is provided between two shelf columns (105) in the same rectangular frame (104), and a second shelf crossbeam (107) is provided between two shelf columns (105) in different rectangular frames (104); A shaping unit (200) comprises two first vertical plates (201), the two first vertical plates (201) being fixed on corresponding first mounting beams (103) respectively, two second inner concave plates (206) being slidably connected in the rectangular frame (104), a second contact plate (207) being slidably connected in the second inner concave plates (206), a second storage cavity (208) for the shelf column (105) to pass through is formed between the second contact plate (207) and the inner wall of one side of the rectangular frame (104), a first U-shaped plate (202) being fixed on the top of the first vertical plate (201), a first inner concave plate (203) being provided in the first U-shaped plate (202), a first contact plate (204) being slidably connected in the first inner concave plate (203), and the second contact plate (204) being slidably connected in the first inner concave plate (206). A first storage cavity (205) for the first crossbeam (106) of the shelf to pass through is formed between a contact plate (204) and an inner wall of one side of the first U-shaped plate (202); two second mounting beams (121) are fixed between the two first mounting beams (103); a second vertical plate (122) is fixed on the second mounting beam (121); a second U-shaped plate (123) is fixed on the top of the second vertical plate (122); a third concave plate (233) is provided in the second U-shaped plate (123); a third contact plate (234) is slidably connected in the third concave plate (233); a third storage cavity (240) for the second crossbeam (107) of the shelf to pass through is formed between the third contact plate (234) and an inner wall of one side of the second U-shaped plate (123); A primary drive assembly for driving the second concave plate (206) to move is provided on one side of the first vertical plate (201); when the second concave plate (206) moves, the second contact plate (207) can clamp the shelf column (105) in the second storage cavity (208); a secondary drive assembly for driving the first concave plate (203) to move is provided on one side of the first U-shaped plate (202); when the first concave plate (203) moves, the first contact plate (204) can clamp the first crossbeam (106) of the shelf in the first storage cavity (205); and a tertiary drive assembly for driving the third concave plate (233) to move is provided on one side of the second U-shaped plate (123); The first-stage drive assembly includes an extension plate (211) fixed to the bottom of the first vertical plate (201), a first tooth plate (212) is fixed on the extension plate (211), the top of the first tooth plate (212) is fixed to the bottom of the first U-shaped plate (202), a movable plate (213) is slidably connected to the outer side of the first tooth plate (212), first hinge seats (214) are fixed on both sides of the movable plate (213), a second hinge seat (215) is fixed on the top of the second concave plate (206), and a rotating rod (216) is hinged between the first hinge seat (214) and the corresponding second hinge seat (215); The movable plate (213) is provided with a through groove (243) for the first tooth plate (212) to slide, and the movable plate (213) is also provided with an inner cavity (220), and the inner cavity (220) and the through groove (243) are connected, and a second tooth plate (221) is slidably connected in the inner cavity (220), and the second tooth plate (221) and the first tooth plate (212) are meshed with each other, and a pull rod (222) is fixed on one side of the second tooth plate (221), and the pull rod (222) passes through the movable plate (213) and slides in the movable plate (213), and a fifth spring (244) is sleeved on the outer side of the pull rod (222), and one end of the fifth spring (244) is against the second tooth plate (221), and the other end of the fifth spring (244) is against the inner wall of the inner cavity (220); A straight tube (225) is fixed on the first U-shaped plate (202), and a connecting tube (226) is fixed to one end of the straight tube (225) and is connected thereto. A curved tube (224) is fixed on the second U-shaped plate (123), and an end of the curved tube (224) away from the second U-shaped plate (123) is fixed to and connected to the connecting tube (226). A cylinder (223) is fixed on the extension plate (211), and a sealing sliding connection is formed inside the cylinder (223). There is a third piston (245), a piston rod (241) is fixed to the top of the third piston (245), a pressure plate (242) is fixed to the top of the piston rod (241), one end of the pressure plate (242) is fixed to the movable plate (213), an L-shaped gas pipe (227) is fixed to the bottom of the cylinder (223) and is connected, the L-shaped gas pipe (227) passes through the second vertical plate (122) and is fixed to and connected with the corresponding connecting pipe (226); The secondary drive assembly includes a first piston (232) that slides in a sealed manner in a straight tube (225), a first push rod (231) is fixed to one side of the first piston (232), one end of the first push rod (231) is fixed to the first inner concave plate (203), second travel grooves (229) are provided on both sides of the first inner concave plate (203), second convex columns (230) are fixed to both sides of the first contact plate (204), the second convex columns (230) are slidably fitted in the corresponding second travel grooves (229), a third spring (228) is provided in the first inner concave plate (203), one end of the third spring (228) is in contact with the inner wall of the first inner concave plate (203), and the other end of the third spring (228) is in contact with the first contact plate (204); The three-stage drive assembly includes a second piston (239) that slides in a sealed manner in the curved tube (224), a second push rod (238) is fixed on one side of the second piston (239), one end of the second push rod (238) is fixed to the third inner concave plate (233), a third travel groove (237) is provided on both sides of the third inner concave plate (233), a third convex column (236) is fixed on both sides of the third contact plate (234), the third convex column (236) is slidably fitted in the corresponding third travel groove (237), a fourth spring (235) is provided in the third inner concave plate (233), one end of the fourth spring (235) is in contact with the inner wall of the third inner concave plate (233), and the other end of the fourth spring (235) is in contact with the third contact plate (234); When the cylinder (223) moves, the third contact plate (234) can clamp the second crossbeam (107) of the shelf in the third storage cavity (240), and when the first-stage drive assembly is in operation, it can synchronously drive the second-stage drive assembly and the third-stage drive assembly to operate.

2. A welding device for shelf processing and production according to claim 1, characterized in that: A movable sleeve (112) is slidably connected to the outside of one side plate of the outer frame (101), a vertical plate (108) is fixed on the top of the movable sleeve (112), a horizontal plate (109) is fixed on the top of the vertical plate (108), a welding device (110) is provided below the horizontal plate (109), a first spring (111) is fixed on the welding device (110), and an end of the first spring (111) away from the welding device (110) is fixed to the horizontal plate (109).

3. A welding device for shelf processing and production according to claim 2, characterized in that: Vertical poles (119) are fixed at two corners of the top of the outer frame (101), and a limiting rod (120) is fixed between the two vertical poles (119). The limiting rod (120) passes through the vertical plate (108), and the vertical plate (108) slides outside the limiting rod (120).

4. A welding device for shelf processing and production according to claim 1, characterized in that: A chassis (113) is provided below the outer frame (101), and a plurality of first connecting rods (114) are fixed to the outside of the chassis (113), and one end of the first connecting rod (114) away from the chassis (113) is fixed to the corresponding supporting foot (102). A hydraulic cylinder (115) is installed on the chassis (113), and a circular disc (116) is fixed to the extended end of the hydraulic cylinder (115). A plurality of second connecting rods (117) are fixed to the outside of the circular disc (116), and a support disc (118) is fixed to the end of the second connecting rod (117) away from the circular disc (116). The plurality of support discs (118) are respectively used to support corresponding shelf columns (105).

5. The welding device for shelf processing and production according to claim 1, characterized in that: The second concave plate (206) is provided with a first travel groove (218) at the top and bottom, and the second contact plate (207) is fixed with a first boss (217) at the top and bottom, and the first boss (217) is slidably fitted in the corresponding first travel groove (218). A second spring (219) is provided in the second concave plate (206), and one end of the second spring (219) is against the inner wall of the second concave plate (206), and the other end of the second spring (219) is against the second contact plate (207). The inner walls on both sides of the rectangular frame (104) are provided with a limiting groove (209), and limiting blocks (210) are fixed on both sides of the second concave plate (206), and the limiting blocks (210) are slidably fitted in the corresponding limiting groove (209).

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