A welding fixture for aluminum box welding and using method

Abstract

The present invention relates to the field of aluminum box welding clamping, specifically a welding fixture for aluminum box welding and forming and a method of using the same. It includes a mounting base, two hydraulic guide rails arranged in a left-right mirror image are fixedly connected to the mounting base, a clamping component is slidably connected to the hydraulic guide rail, and a positioning component is arranged on the mounting base and between the two hydraulic guide rails; the clamping component provided in the present invention can clamp the bottom edge of the upper half of the product in the attached figure through a clamping assembly, and can knock the bottom edge of the upper half of the product while clamping it, so that the bottom edge of the upper half of the product fits with the top surface of the lower half, ensuring the quality of product welding, and the clamping force of the present invention on the bottom edge of the upper half of the product gradually increases with knocking, so that the bottom edge of the upper half of the product fits better with the top surface of the lower half.

Description

Technical Field

[0001] The invention relates to the field of aluminum box welding clamping, and in particular to a welding clamp for aluminum box welding and forming and a use method thereof. Background Art

[0002] Aluminum alloy cabinets play an important role in industry, military, communications and other fields due to their light weight, high strength, corrosion resistance and beautiful appearance, meeting the needs of different application scenarios.

[0003] The general processing technology of aluminum alloy box is as follows: cutting - bending (bending the plate to the specified shape) - assembly and positioning (using clamps and jigs to fix the various components together to ensure accurate and stable position during welding) - welding.

[0004] Attach Figure 8 Taking the box shown as an example, this box can be divided into the main box seat at the bottom and two U-shaped brackets arranged on the left and right at the top. The two U-shaped brackets are connected to the main box seat by welding. Due to the special structure of the box, it needs to be clamped in multiple directions. The specific welding processing steps are as follows: First, clamp and position the main box seat, and position the U-shaped bracket on the left and right sides above the main box seat so that the U-shaped bracket fits tightly against the main box seat; then use the horizontal clamping cylinder to push the U-shaped bracket tight to prevent the U-shaped bracket from changing position during welding.

[0005] The following problems exist in the process of welding the U-shaped bracket of the box body to the main box seat: 1. Since the U-shaped bracket is bent into a specified shape after cutting and then positioned and welded, the lower side of the U-shaped bracket is prone to not being able to fully fit with the upper side of the main box seat during the bending process. Incomplete fitting will increase the gap between the U-shaped bracket and the main box seat, thereby reducing the welding strength and increasing the welding deformation, which will ultimately affect the quality of the box body; 2. The above-mentioned clamping method requires manual adjustment of the left and right directions of the U-shaped bracket. After the adjustment, the U-shaped bracket is pressed downward by a cylinder, and the relative positions of the U-shaped bracket and the main box seat are determined by the friction between the two. Since it is manually adjusted, the welding accuracy of the box body will deteriorate, and even scrapped products will be produced. Summary of the invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a welding fixture for aluminum box welding forming, including a mounting base, two hydraulic guide rails arranged in left and right mirror images are fixedly connected to the mounting base, a clamping component is slidably connected to the hydraulic guide rail, and a positioning component is arranged on the mounting base and between the two hydraulic guide rails; the clamping component includes a U-shaped frame slidably connected to the hydraulic guide rail, a No. 1 slide rail is slidably connected to the U-shaped frame, and two clamping assemblies arranged in front and back mirror images are slidably connected to the No. 1 slide rail; the clamping assembly includes an electric slider slidably connected to the No. 1 slide rail, a clamping cylinder is fixedly connected to the lower side of the electric slider, the end of the piston rod of the clamping cylinder is fixedly connected to the mounting frame, and a rotating rod is rotatably connected to the side of the mounting frame away from the U-shaped frame. A power gear and a winding roller are fixedly connected to the rotating rod from left to right respectively, a steering roller is rotatably connected to the inner side of the mounting frame and located close to the U-shaped frame, a heavy hammer block is slidably connected to the mounting frame and located below the steering roller, a transmission belt is wound around the winding roller and the steering roller, one end of the transmission belt is fixedly connected to the winding roller, and the other end of the transmission belt is fixedly connected to the heavy hammer block, the heavy hammer block is connected to the mounting frame through an energy storage spring, and a correction execution frame is slidably connected to the lower end of the mounting frame; two slide grooves arranged in a front-to-back mirror image are provided on the mounting base, and the positioning component includes two sliding frames arranged in a left-to-right mirror image and slidably connected in the slide groove, a synchronous gear is rotatably connected to the lower side of the mounting base, a synchronous rack is fixedly connected to the lower side of the sliding frame, and the synchronous gear is meshed with the synchronous rack.

[0007] As a preferred technical solution of the present invention, two check tooth grooves are arranged in a centrally symmetrical manner on the lower side of the mounting base, a check block is slidably connected to the corresponding position on the sliding frame below the check tooth groove, an adjusting bolt is threadedly penetrated on the sliding frame at the lower end of the check block, and the adjusting bolt and the check block are connected by a return spring.

[0008] As a preferred technical solution of the present invention, a sleeve is fixedly connected to the electric slider and located on the side of the clamping cylinder away from the U-shaped frame, an incomplete rack is slidably connected in the sleeve, pin holes are provided on the incomplete rack and the sleeve, pins are provided in the pin holes, the pins are inserted into the pin holes to determine the relative position of the incomplete rack and the sleeve, and the incomplete rack is meshed with the power gear.

[0009] As a preferred technical solution of the present invention, the correction execution frame includes an execution frame body slidably connected to the lower end of the installation frame, the execution frame body is in an inverted T shape, and is connected to the installation frame through a return spring. The left and right ends of the execution frame body are slidably connected with ejection brackets, and a groove is provided at the lower end of the ejection bracket. A push block is slidably connected in the groove, and two hinge rods are hinged on the push block. The ends of the two hinge rods away from the push block are respectively hinged to the ejection bracket and the elastic telescopic rod.

[0010] As a preferred technical solution of the present invention, a T-shaped groove is provided at the upper end of the sliding frame, and two clamping blocks arranged in a left-right mirror image are slidably connected in each T-shaped groove, wherein the clamping block on the right sliding frame is slidably connected with a movable limit rod, and the clamping block on the left sliding frame is fixedly connected with a fixed limit rod, and the top ends of the movable limit rod and the fixed limit rod are both L-shaped.

[0011] As a preferred technical solution of the present invention, a bidirectional lead screw is rotatably connected in the T-slot, and the bidirectional lead screw passes through the clamping block and is threadedly connected thereto. When the bidirectional lead screw is rotated, the bidirectional lead screw drives the two clamping blocks to move closer to or away from each other.

[0012] As a preferred technical solution of the present invention, one end of the elastic telescopic rod away from the ejection bracket is fixedly connected to the ejection block, an L-shaped cavity is opened in the ejection block, a No. 1 wedge block is slidably connected to the side of the ejection block away from the ejection bracket, and a No. 2 wedge block is slidably connected to the side of the ejection block away from the U-shaped frame, and the No. 1 wedge block, the No. 2 wedge block and the ejection block are all connected by a reset spring.

[0013] The beneficial effects of the present invention are: 1. The clamping component provided in the present invention can clamp the bottom edge of the U-shaped bracket through the clamping assembly, and can knock the bottom edge of the U-shaped bracket while clamping it, so that the bottom edge of the U-shaped bracket of the box body fits with the top surface of the main box seat, thereby ensuring the quality of the box body welding, and the clamping force of the present invention on the bottom edge of the U-shaped bracket gradually increases with the knocking, so that the bottom edge of the U-shaped bracket of the box body fits better with the top surface of the main box seat.

[0014] 2. The clamping component provided in the present invention can compress the bottom edge of the U-shaped bracket and correct the left and right sides of the U-shaped bracket through the ejection block at the same time. The movable limit rod and the fixed limit rod are cooperated so that the left and right sides can always remain perpendicular to the front and rear sides of the main box seat, thereby ensuring the dimensional accuracy of the box body.

[0015] 3. The positioning component provided in the present invention can reliably position and clamp the main box seat through two sliding frames and the clamping blocks on the sliding frames. While positioning and clamping the main box seat, the side edges of the upper and lower parts of the box body can be aligned through the movable limit rod and the fixed limit rod, effectively preventing the U-shaped bracket from shifting to the left and right directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the inverted three-dimensional structure of the present invention.

[0019] Figure 3 yes Figure 2 Enlarged view of point I.

[0020] Figure 4 It is a structural schematic diagram of the pressing component of the present invention.

[0021] Figure 5 It is a partial cross-sectional view of the correction execution frame of the present invention.

[0022] Figure 6 It is a partial cross-sectional view of the ejection bracket of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the clamping aluminum box body of the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the aluminum box welding machine after forming.

[0025] In the figure: 1. Mounting base; 11. Hydraulic guide rail; 12. Slideway; 13. Check tooth groove; 2. Clamping component; 21. U-shaped frame; 211. Slideway No. 1; 22. Clamping assembly; 221. Electric slider; 222. Clamping cylinder; 223. Mounting frame; 224. Rotating rod; 225. Power gear; 226. Winding roller; 227. Steering roller; 228. Heavy hammer block; 2281. Energy storage spring; 229. Transmission belt; 23. Correction execution frame; 231. Execution frame body; 232. Return spring; 233. Ejector bracket; 234, push block; 235, hinge rod; 236, elastic telescopic rod; 237, ejector block; 2371, wedge block No. 1; 2372, wedge block No. 2; 2373, return spring; 24, sleeve; 241, incomplete rack; 3, positioning component; 31, sliding frame; 311, T-slot; 312, clamping block; 313, movable limit rod; 314, fixed limit rod; 315, bidirectional screw; 32, synchronous gear; 33, synchronous rack; 34, check block; 35, adjusting bolt; 36, return spring. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. If no specific technology or conditions are specified in the embodiments, the technology or conditions described in the literature in the art or the box specification shall be followed.

[0027] See also Figure 1 , Figure 7A welding fixture for aluminum box welding and forming includes a mounting base 1, on which two hydraulic guide rails 11 arranged in a left-right mirror image are fixedly connected, on which a clamping component 2 is slidably connected, and on which a positioning component 3 is arranged between the two hydraulic guide rails 11.

[0028] The pressing component 2 provided in the present invention can Figure 8 The bottom edge of the U-shaped bracket in the box is pressed, and the bottom edge of the U-shaped bracket can be knocked while being pressed, so that the bottom edge of the U-shaped bracket of the box body fits with the top surface of the main box seat, thereby ensuring the quality of the box body welding, and the pressing force of the bottom edge of the U-shaped bracket of the present invention gradually increases with the knocking, so that the bottom edge of the U-shaped bracket of the box body and the top surface of the main box seat fit better; the pressing component 2 provided in the present invention can correct the left and right side surfaces of the U-shaped bracket while pressing the bottom edge of the U-shaped bracket, and cooperate with the positioning component 3 so that the left and right side surfaces can always remain perpendicular to the front and rear side surfaces of the main box seat, thereby ensuring the dimensional accuracy of the box; the positioning component 3 provided in the present invention can position the upper and lower parts of the box in four directions of front, back, left and right.

[0029] Specifically, first place the main box seat that needs to be positioned on the mounting base 1, and then place the U-shaped bracket on the main box seat. After placement is completed, control the positioning component 3 to determine the position of the main box seat, and then control the positioning component 3 to slide along the hydraulic guide rail 11 to the center position of the U-shaped bracket. After the positioning component 3 slides into place, the clamping component 2 can be controlled to clamp the U-shaped bracket and make its lower side face tightly fit with the upper side face of the main box seat. At the same time, the clamping component 2 will cooperate with the positioning component 3 so that the left and right sides of the U-shaped bracket can always remain perpendicular to the front and rear sides of the main box seat.

[0030] See also Figure 1-Figure 3The mounting base 1 is provided with two slide grooves 12 arranged in a front-to-back mirror image, and the positioning component 3 includes two slide frames 31 arranged in a left-to-right mirror image and slidably connected in the slide grooves 12. A synchronous gear 32 is rotatably connected at the bottom of the mounting base 1, and a synchronous rack 33 is fixedly connected to the lower side of the slide frame 31, and the synchronous gear 32 is meshed with the synchronous rack 33; the mounting base 1 is provided with two centrally symmetrically arranged check tooth grooves 13 at the lower side, and a check block 34 is slidably connected at a corresponding position on the slide frame 31 and below the check tooth groove 13, and an adjusting bolt 35 is threadedly penetrated on the slide frame 31 and at the lower end of the check block 34, and a return spring 3 is provided between the adjusting bolt 35 and the check block 34. 6 connection; a T-shaped slot 311 is provided at the upper end of the sliding frame 31, and two clamping blocks 312 arranged in left and right mirror images are slidably connected in each T-shaped slot 311, wherein a movable limiting rod 313 is slidably connected to the clamping block 312 on the right sliding frame 31, and a fixed limiting rod 314 is fixedly connected to the clamping block 312 on the left sliding frame 31, and the top ends of the movable limiting rod 313 and the fixed limiting rod 314 are both L-shaped; a bidirectional lead screw 315 is rotatably connected in the T-shaped slot 311, and the bidirectional lead screw 315 passes through the clamping block 312 and is threadedly connected thereto. When the bidirectional lead screw 315 is rotated, the bidirectional lead screw 315 drives the two clamping blocks 312 to move closer to or away from each other.

[0031] It should be noted that both the clamping block 312 and the movable limiting rod 313 on the right sliding frame 31 are provided with pin holes, and pins are provided in the pin holes. When the pins are inserted into the pin holes, the relative position between the clamping block 312 and the movable limiting rod 313 can be controlled.

[0032] The positioning component 3 provided in the present invention can reliably position and clamp the main box seat through the two sliding frames 31 and the clamping blocks 312 on the sliding frames 31. While positioning and clamping the main box seat, the side edges of the upper and lower parts of the box body can be aligned through the movable limiting rod 313 and the fixed limiting rod 314, effectively preventing the U-shaped bracket from shifting to the left and right directions.

[0033] Specifically, first place the main box seat to be positioned on the mounting base 1, then place the U-shaped bracket on the main box seat, and then push any one of the sliding frames 31. During the pushing process, the check block 34 cooperates with the check tooth groove 13 under the action of the return spring 36 to prevent the sliding frame 31 from sliding back. Under the action of the synchronous gear 32 and the synchronous rack 33, the other sliding frame 31 will also slide synchronously with it until both sliding frames 31 are in contact with the main box seat and clamped, and then the bidirectional lead screw is twisted according to the front and rear dimensions of the main box seat. 315 is used to adjust the positions of the two clamping blocks 312 until the two clamping blocks 312 are respectively in contact with the front and rear sides of the main box seat, at which time the front and rear and left and right directions of the main box seat are all positioned; then the position of the movable limiting rod 313 is adjusted through the pin hole pin structure on the clamping blocks 312 and the movable limiting rod 313, and the movable limiting rod 313 is in contact with the right side surface of the U-shaped bracket and pushed to the left until the left and right side surfaces of the U-shaped bracket are respectively in contact with the fixed limiting rod 314 and the movable limiting rod 313, at which time the left and right directions of the U-shaped bracket are positioned.

[0034] See also Figure 1 , Figure 4-Figure 5 The clamping assembly 22 includes an electric slider 221 slidably connected to the first slide rail 211, a clamping cylinder 222 is fixedly connected to the lower side of the electric slider 221, a mounting frame 223 is fixedly connected to the end of the piston rod of the clamping cylinder 222, a rotating rod 224 is rotatably connected to the side of the mounting frame 223 away from the U-shaped frame 21, a power gear 225 and a winding roller 226 are fixedly connected to the rotating rod 224 from left to right, a steering roller 227 is rotatably connected to the inner side of the mounting frame 223 and located on the side close to the U-shaped frame 21, a heavy hammer block 228 is slidably connected to the mounting frame 223 and located below the steering roller 227, a transmission belt 229 is wound around the winding roller 226 and the steering roller 227, one end of the transmission belt 229 is fixedly connected to the winding roller 226, and the other end of the transmission belt 229 is fixedly connected to the heavy hammer block 2 28, the weight block 228 is connected to the mounting frame 223 by an energy storage spring 2281, and the lower end of the mounting frame 223 is slidably connected to the correction execution frame 23; a sleeve 24 is fixedly connected to the electric slider 221 and is located on the side of the clamping cylinder 222 away from the U-shaped frame 21, and an incomplete rack 241 is slidably connected in the sleeve 24, and pin holes are provided on the incomplete rack 241 and the sleeve 24, and pins are provided in the pin holes. The pins are inserted into the pin holes to determine the relative positions of the incomplete rack 241 and the sleeve 24, and the incomplete rack 241 is meshed with the power gear 225; the correction execution frame 23 includes an execution frame body 231 slidably connected to the lower end of the mounting frame 223, and the execution frame body 231 is in an inverted T shape, and is connected to the mounting frame 223 by a return spring 232.

[0035] It should be noted that the teeth on the incomplete rack 241 are arranged at intervals.

[0036] The clamping component 2 provided in the present invention can clamp the bottom edge of the U-shaped bracket in the figure through the clamping assembly 22, and can knock it while clamping, so that the bottom edge of the U-shaped bracket of the box body is completely fitted with the top surface of the main box seat, ensuring the quality of the box body welding.

[0037] Specifically, after completing the left and right positioning of the U-shaped bracket, the U-shaped bracket 21 can be controlled to slide along the hydraulic guide rail 11 to the center point of the U-shaped bracket, and then the electric slider 221 can be controlled to drive the mounting frame 223 to slide to the top of the U-shaped bracket, and finally the extension length of the incomplete rack 241 can be adjusted according to the height of the knocking position required. After the adjustment is completed, the clamping cylinder 222 is controlled to extend and drive the mounting frame 223 to move downward, and the lower end of the correction execution frame 23 contacts the bottom surface of the main box seat. As the mounting frame 223 continues to move downward, the return spring 232 is gradually stretched, and the clamping force of the lower end of the correction execution frame 23 on the bottom surface of the main box seat gradually increases, and at the same time At the same time, the power gear 225 gradually contacts and meshes with the incomplete rack 241. Under the action of the incomplete rack 241, the power gear 225 drives the winding roller 226 to rotate, and the winding roller 226 rolls up the transmission belt 229. The transmission belt 229 drives the heavy hammer block 228 to move upward. At the same time, the energy storage spring 2281 is compressed and stores energy. Since the teeth on the incomplete rack 241 are arranged at intervals, as the mounting frame 223 continues to move downward, the power gear 225 and the teeth on the incomplete rack 241 are disengaged. At the moment the two are disengaged, the heavy hammer block 228 is hit downward to the upper end of the execution frame body 231 under the action of the energy storage spring 2281.

[0038] See also Figure 4-Figure 6 The left and right ends of the execution frame body 231 are slidably connected with an ejection bracket 233, and a groove is provided at the lower end of the ejection bracket 233, in which a push block 234 is slidably connected, and two hinge rods 235 are hinged on the push block 234, and the ends of the two hinge rods 235 away from the push block 234 are respectively hinged to the ejection bracket 233 and the elastic telescopic rod 236; the end of the elastic telescopic rod 236 away from the ejection bracket 233 is fixedly connected with an ejection block 237, and an L-shaped cavity is provided in the ejection block 237, and a first wedge block 2371 is slidably connected to the ejection block 237 and a side thereof away from the ejection bracket 233, and a second wedge block 2372 is slidably connected to the ejection block 237 and a side thereof away from the U-shaped frame 21, and the first wedge block 2371, the second wedge block 2372 and the ejection block 237 are all connected by a return spring 2373.

[0039] It should be noted that both the execution frame body 231 and the ejection bracket 233 are provided with pin holes, and pins are provided in the pin holes. When the pins are inserted into the pin holes, the extension distance of the ejection bracket 233 on the execution frame body 231 can be controlled.

[0040] The clamping component 2 provided in the present invention can, while clamping the bottom edge of the U-shaped bracket, correct the left and right sides of the U-shaped bracket through the ejection block 237, and cooperate with the movable limiting rod 313 and the fixed limiting rod 314 so that the left and right sides can always remain perpendicular to the front and rear sides of the main box seat, thereby ensuring the dimensional accuracy of the box body.

[0041] Specifically, before pressing the bottom edge of the U-shaped bracket, it is necessary to adjust the extension distance of the ejector bracket 233 on the execution frame body 231 according to the length of the U-shaped bracket; after the adjustment is completed, the pressing cylinder 222 can be controlled to extend to drive the mounting frame 223 to move downward, and the push block 234 contacts the bottom edge of the U-shaped bracket and pushes the elastic telescopic rods 236 on both sides to the left and right sides respectively, and the ejector block 237 contacts the left and right sides of the U-shaped bracket and pushes them to the left and right sides respectively, which cooperates with the fixed limiting rod 314 and the movable limiting rod 313 to ensure that the left and right sides of the U-shaped bracket are fixed during welding. The front and rear sides of the main box seat on both sides remain vertical; at the same time, wedge block 2371 No. 1 contacts the U-shaped bracket and begins to compress its corresponding return spring 2373, wedge block 2371 No. 1 contacts wedge block 2372 No. 2 and pushes wedge block 2372 to the side away from the U-shaped frame 21, wedge block 2372 No. 2 contacts the U-shaped bracket and pushes it, wedge block 2372 No. 2 cooperates with fixed limit rod 314 and movable limit rod 313 to ensure that the side of the U-shaped bracket away from the U-shaped frame 21 is aligned with the main box seat, and the front and rear directions of the U-shaped bracket are positioned.

[0042] In addition, the present invention also provides a method for using a welding fixture for aluminum box welding and forming, and the specific steps are as follows: S1, main body box seat positioning: first, place the main body box seat to be positioned on the mounting base 1, then place the U-shaped bracket on the main body box seat, and then push any one of the sliding frames 31. During the pushing process, the check block 34 cooperates with the check tooth groove 13 under the action of the return spring 36 to prevent the sliding frame 31 from sliding back. Under the action of the synchronous gear 32 and the synchronous rack 33, the other sliding frame 31 will also slide synchronously with it until the two sliding frames 31 are in contact with the main body box seat and clamped, and then the two-way lead screw 315 is turned according to the front and rear dimensions of the main body box seat to adjust the positions of the two clamping blocks 312 until the two clamping blocks 312 are in contact with the front and rear sides of the main body box seat respectively. At this time, the front and rear and left and right directions of the main body box seat are all positioned.

[0043] S2. One-time positioning of the U-shaped bracket: After the main box seat is positioned, the position of the movable limit rod 313 is adjusted by the pin hole and pin structure on the clamping block 312 and the movable limit rod 313. The movable limit rod 313 contacts the right side of the U-shaped bracket and pushes it to the left until the left and right side surfaces of the U-shaped bracket contact the fixed limit rod 314 and the movable limit rod 313 respectively. At this time, the left and right directions of the U-shaped bracket are positioned.

[0044] After the U-shaped bracket is positioned in the left and right directions, the U-shaped bracket 21 can be controlled to slide along the hydraulic guide rail 11 to the center point of the U-shaped bracket, and then the electric slider 221 is controlled to drive the mounting frame 223 to slide to the top of the U-shaped bracket. Finally, the protruding length of the incomplete rack 241 is adjusted according to the height of the knocking position required. After the adjustment is completed, the pressing cylinder 222 is controlled to extend and drive the mounting frame 223 to move downward, and the lower end of the correction executing frame 23 contacts the bottom surface of the main box seat. As the mounting frame 223 continues to move downward, the return spring 232 is gradually stretched, and the pressing force of the lower end of the correction executing frame 23 on the bottom surface of the main box seat gradually increases. At the same time, the power gear 225 gradually contacts and meshes with the incomplete rack 241. Under the action, the power gear 225 drives the winding roller 226 to rotate, the winding roller 226 rolls up the transmission belt 229, and the transmission belt 229 drives the heavy hammer block 228 to move upward, and at the same time, the energy storage spring 2281 is compressed and stores energy. Since the teeth on the incomplete rack 241 are arranged at intervals, as the mounting frame 223 continues to move downward, the power gear 225 is disengaged from the teeth on the incomplete rack 241. At the moment when the two are disengaged, the heavy hammer block 228 is hit downward to the upper end of the execution frame body 231 under the action of the energy storage spring 2281; at the same time, the push block 234 contacts the bottom edge of the U-shaped bracket and pushes the elastic telescopic rods 236 on both sides to the left and right sides respectively, and the ejection block 237 contacts the left and right side surfaces of the U-shaped bracket and pushes them to the left and right sides respectively, and cooperates with the fixed limiting rod 314 and the movable limiting rod 313 to ensure that the front and rear side surfaces of the main box seat on the left and right sides of the U-shaped bracket remain vertical during welding.

[0045] S4. Secondary positioning of the U-shaped bracket: while correcting the U-shaped bracket, the No. 1 wedge block 2371 contacts the U-shaped bracket and begins to compress its corresponding return spring 2373, the No. 1 wedge block 2371 contacts the No. 2 wedge block 2372 and pushes the No. 2 wedge block 2372 to the side away from the U-shaped bracket 21, the No. 2 wedge block 2372 contacts the U-shaped bracket and pushes it, the No. 2 wedge block 2372 cooperates with the fixed limiting rod 314 and the movable limiting rod 313 to ensure that the side of the U-shaped bracket away from the U-shaped bracket 21 is aligned with the main box seat, and the front and rear directions of the U-shaped bracket are positioned.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention and they are still covered by the protection scope of the present invention.

Claims

1. A welding fixture for aluminum box welding and forming, comprising a mounting base (1), to which two hydraulic guide rails (11) arranged in a left-right mirror image are fixedly connected, characterized in that: A pressing component (2) is slidably connected to the hydraulic guide rail (11), and a positioning component (3) is provided on the mounting base (1) and located between the two hydraulic guide rails (11); The clamping component (2) comprises a U-shaped frame (21) slidably connected to the hydraulic guide rail (11), a first slide rail (211) slidably connected to the U-shaped frame (21), and two clamping assemblies (22) arranged in a front-to-back mirror image are slidably connected to the first slide rail (211); The clamping assembly (22) comprises an electric slider (221) slidably connected to the first slide rail (211); a clamping cylinder (222) is fixedly connected to the lower side of the electric slider (221); a mounting frame (223) is fixedly connected to the end of the piston rod of the clamping cylinder (222); a rotating rod (224) is rotatably connected to the side of the mounting frame (223) away from the U-shaped frame (21); a power gear (225) and a winding roller (226) are fixedly connected to the rotating rod (224) from left to right; a mounting frame (223) is located inside and close to the U-shaped frame (21) ) is rotatably connected to a steering roller (227) on one side, a weight block (228) is slidably connected to the mounting frame (223) and located below the steering roller (227), a transmission belt (229) is wound around the winding roller (226) and the steering roller (227), one end of the transmission belt (229) is fixedly connected to the winding roller (226), and the other end is fixedly connected to the weight block (228), the weight block (228) and the mounting frame (223) are connected via an energy storage spring (2281), and a correction execution frame (23) is slidably connected to the lower end of the mounting frame (223); The mounting base (1) is provided with two slide grooves (12) arranged in a front-to-back mirror image, the positioning component (3) comprises two sliding frames (31) slidably connected to the slide grooves (12) and arranged in a left-to-right mirror image, a synchronous gear (32) is rotatably connected below the mounting base (1), a synchronous rack (33) is fixedly connected to the lower side of the sliding frame (31), and the synchronous gear (32) is meshed with the synchronous rack (33).

2. The welding fixture for aluminum box welding and forming according to claim 1, characterized in that: The mounting base (1) is provided with two centrally symmetrically arranged check tooth grooves (13) on the lower side, a check block (34) is slidably connected to a corresponding position below the check tooth groove (13) on the sliding frame (31), an adjusting bolt (35) is threadedly penetrated on the lower end of the check block (34) on the sliding frame (31), and the adjusting bolt (35) is connected to the check block (34) via a return spring (36).

3. The welding fixture for aluminum box welding and forming according to claim 1, characterized in that: A sleeve (24) is fixedly connected to the electric slider (221) and is located on a side of the pressing cylinder (222) away from the U-shaped frame (21). An incomplete rack (241) is slidably connected inside the sleeve (24). Pin holes are provided on the incomplete rack (241) and the sleeve (24). A pin is provided in the pin hole. The pin is inserted into the pin hole to determine the relative position of the incomplete rack (241) and the sleeve (24), and the incomplete rack (241) is meshed with the power gear (225).

4. The welding fixture for aluminum box welding and forming according to claim 1, characterized in that: The correction execution frame (23) includes an execution frame body (231) slidably connected to the lower end of the installation frame (223), the execution frame body (231) is in an inverted T shape, and is connected to the installation frame (223) via a return spring (232), and both left and right ends of the execution frame body (231) are slidably connected to ejection brackets (233), and a groove is provided at the lower end of the ejection bracket (233), and a push block (234) is slidably connected in the groove, and two hinge rods (235) are hinged on the push block (234), and the ends of the two hinge rods (235) away from the push block (234) are respectively hinged to the ejection bracket (233) and the elastic telescopic rod (236).

5. The welding fixture for aluminum box welding and forming according to claim 1, characterized in that: A T-shaped groove (311) is provided at the upper end of the sliding frame (31), and two clamping blocks (312) arranged in a left-right mirror image are slidably connected in each T-shaped groove (311), wherein a movable limiting rod (313) is slidably connected to the clamping block (312) on the right sliding frame (31), and a fixed limiting rod (314) is fixedly connected to the clamping block (312) on the left sliding frame (31), and the top ends of the movable limiting rod (313) and the fixed limiting rod (314) are both L-shaped.

6. The welding fixture for aluminum foil welding and forming according to claim 5, characterized in that: A bidirectional lead screw (315) is rotatably connected in the T-shaped groove (311), and the bidirectional lead screw (315) passes through the clamping block (312) and is threadedly connected thereto. When the bidirectional lead screw (315) is rotated, the bidirectional lead screw (315) drives the two clamping blocks (312) to move closer to or farther from each other.

7. The welding fixture for aluminum box welding and forming according to claim 4, characterized in that: The end of the elastic telescopic rod (236) away from the ejection bracket (233) is fixedly connected to the ejection block (237), an L-shaped cavity is provided in the ejection block (237), a first wedge block (2371) is slidably connected to the ejection block (237) and a surface thereof away from the ejection bracket (233), a second wedge block (2372) is slidably connected to the ejection block (237) and a surface thereof away from the U-shaped frame (21), and the first wedge block (2371), the second wedge block (2372) and the ejection block (237) are all connected via a return spring (2373).

8. A method for using a welding fixture for aluminum box welding, characterized in that: The welding fixture for aluminum box welding and forming as described in any one of claims 1 to 7 is used to complete the process, and the specific steps are as follows: S1, positioning the lower half of the product: first, the lower half and the upper half of the product to be positioned are placed on the mounting base (1) in sequence, and then the sliding frame (31) is pushed to position the lower half of the product in the front-back and left-right directions; S2. Primary positioning of the upper part of the product: After the primary positioning of the lower part of the product is completed, the left and right positioning of the upper part of the product is completed by adjusting the sliding frame (31); S3. Correction of the upper part of the product: After the upper part of the product is positioned once, the control pressing cylinder (222) is extended to drive the installation frame (223) to move downward, and the lower end of the correction execution frame (23) contacts the bottom surface of the lower part of the product. As the installation frame (223) continues to move downward, the pressing force of the lower end of the correction execution frame (23) on the bottom surface of the lower part of the product gradually increases. At the same time, the power gear (225) drives the winding roller (226) to rotate, and the winding roller (226) rolls up the transmission belt (229). The transmission belt (229) is rotated. 29) drives the heavy hammer block (228) to move upward, and at the same time, the energy storage spring (2281) is compressed and stores energy. As the mounting frame (223) continues to move downward, the power gear (225) loses torque and releases the heavy hammer block (228), and the heavy hammer block (228) hits downward to the upper end of the correction execution frame (23); at the same time, the two ends of the correction execution frame (23) contact the left and right side surfaces of the upper half of the product and push it, so as to ensure that the left and right side surfaces of the upper half of the product and the front and rear side surfaces of the lower half of the product remain vertical during welding; S4. Secondary positioning of the upper part of the product: while correcting the upper part of the product, the correction execution frame (23) contacts the upper part of the product and pushes it to the side away from the U-shaped frame (21), and the correction execution frame (23) and the sliding frame (31) cooperate with each other to complete the front-to-back positioning of the upper part of the product.

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