Welding device and welding method for controller metal shell machining

Abstract

The invention discloses a welding device and a welding method for controller metal shell machining, and relates to the field of metal shell machining. The welding device comprises a bottom plate and a vertical plate, two fixing mechanisms and a welding mechanism are arranged on the bottom plate, the vertical plate is fixedly connected to the top face of the bottom plate, and the two fixing mechanisms are symmetrically arranged with the vertical plate as the center axis. By arranging the fixing mechanism and the first positioning assembly, before welding, when a first driving hydraulic cylinder drives a supporting plate to move downwards, a hinge plate can drive a first hinge rod to vertically move downwards on a first sliding rod, and a first fixing rod on the first hinge rod and an L-shaped positioning plate synchronously move downwards; by arranging the L-shaped positioning plate on the top surface of the fixing frame, the L-shaped positioning plate extrudes and fixes the metal shell plates on the top surface of the fixing frame, dislocation of the two metal shell plates during welding is avoided, the stability in the welding process is improved, the welding accuracy and consistency are ensured, and therefore the strength and durability of the whole structure are enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of metal shell processing, and in particular relates to a welding device and a welding method for processing a controller metal shell. Background Art

[0002] Welding is a very common processing step in industrial production. With the advancement of technology, there are more and more welding methods nowadays, such as arc welding, gas welding, submerged arc welding, friction welding and laser welding. Stir friction welding refers to the use of the heat generated by the friction between the high-speed rotating welding tool and the workpiece to partially melt the material to be welded. When the welding tool moves forward along the welding interface, the plasticized material flows from the front to the back of the welding tool under the action of the rotating friction force of the welding tool, and forms a dense solid phase weld under the extrusion of the welding tool.

[0003] However, when performing welding processing between two metal shell plates, it is impossible to ensure accurate positioning of the splicing position of the two metal shell plates, which leads to unstable welding quality, and may cause problems such as uneven welds, welding defects and insufficient structural strength. This not only affects the appearance of the finished product, but may also cause safety hazards in subsequent use and increase the cost of maintenance and replacement. Summary of the invention

[0004] The object of the present invention is to provide a welding device and a welding method for processing a metal shell of a controller. By providing a fixing mechanism and a positioning component, before welding, when a hydraulic cylinder is driven to drive a support plate to move downward, the hinged plate will drive a hinged rod to move vertically downward on a slide rod, so that a fixing rod and an L-shaped positioning plate on the hinged rod move downward synchronously, so that the L-shaped positioning plate squeezes and fixes the metal shell plate on the top surface of the fixed frame, avoiding misalignment of the two metal shell plates during welding, improving the stability of the welding process, ensuring the accuracy and consistency of welding, thereby enhancing the strength and durability of the overall structure, and solving the problem that the precise positioning of the splicing positions of the two metal shell plates cannot be ensured, resulting in unstable welding quality, uneven welds, welding defects and insufficient structural strength.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a welding device and a welding method for processing a metal shell of a controller, comprising a bottom plate and a vertical plate, wherein two fixing mechanisms and a welding mechanism are arranged on the bottom plate, the top surface of the bottom plate is fixedly connected to the vertical plate, and the two fixing mechanisms are symmetrically arranged with the vertical plate as the central axis. The fixing mechanism comprises a fixing frame fixedly connected to the top surface of the bottom plate, the inner bottom wall of the fixing frame is fixedly connected to a hydraulic cylinder 1, the output end of the hydraulic cylinder 1 is fixedly connected to a support plate, and the top surface of the support plate is provided with a positioning assembly 1; The positioning component 1 includes a hinge plate fixedly connected to the top surface of the support plate, a hinge rod 1 is hinged on the hinge plate, a slide groove 1 is provided on the hinge rod 1, a fixed plate 1 is fixedly connected to the top surface of the fixed frame, a sliding rod 1 is fixedly connected to the side of the fixed plate 1 close to the hinge rod 1, the sliding rod 1 is slidably connected to the inner wall of the slide groove 1, a fixed rod 1 is fixedly passed through the end of the hinge rod 1 away from the positioning component 1, the bottom end of the fixed rod 1 is fixedly connected to an L-shaped positioning plate, a metal shell plate is placed on the top surface of the fixed frame, and the L-shaped positioning plate is in contact with the top surface of the metal shell plate.

[0006] Furthermore, a baffle 1 is fixedly connected to the top surface of the fixed frame, and a positioning component 2 is provided on the top surface of the fixed frame; The second positioning component includes a connecting frame opened on the top surface of the fixed frame, the top surface of the fixed frame is opened with a slide groove 2, the inner wall of the slide groove 2 is slidably connected with a baffle 2, the baffle 2 is in contact with the metal shell plate, and two sliding rods 2 are fixedly connected to the side of the baffle 2 away from the metal shell plate, and the ends of the two sliding rods 2 away from the baffle 2 are fixedly connected with pads.

[0007] Furthermore, the outer walls of the two sliding rods 2 are both wound with a spring 1, one end of the spring 1 is fixedly connected to the connecting frame, and the other end of the spring 1 is fixedly connected to the cushion block.

[0008] Furthermore, a positioning component three is provided on the top surface of the fixed frame; The positioning component three includes two fixed plates two fixedly connected to the top surface of the fixed frame, a hinged rod two is hinged between the two fixed plates two, a fixed rod two is fixedly passed through the hinged rod two, a hinged block one is hinged on the bottom surface of the fixed frame, a hinged block two is hinged on the top surface of the hinged rod two, a telescopic rod is fixedly connected between the hinged block one and the hinged block two, and a spring two is wound around the outer wall of the telescopic rod.

[0009] Furthermore, a spring 2 is threadedly penetrated at one end of the hinged rod 2 away from the fixed rod 2, a handle is fixedly connected to one end of the threaded rod 1, and a positioning block is fixedly connected to the other end of the hinged rod 2, and the positioning block is in contact with the metal shell plate.

[0010] Furthermore, the welding mechanism includes a motor fixedly connected to the right side of the vertical plate, the left side of the vertical plate is fixedly connected to a support frame, the output end of the motor is fixedly connected to a second threaded rod via a coupling, and the second threaded rod rotates and passes through the support frame.

[0011] Furthermore, a sliding block is provided on the threaded sleeve on the outer wall of the threaded rod 2, the sliding block is slidably connected to the inner wall of the support frame, the bottom surface of the sliding block is fixedly connected to the hydraulic cylinder 2, and the output end of the hydraulic cylinder 2 is fixedly connected to a friction stir welding tool.

[0012] Furthermore, a positioning rod is fixedly connected to the bottom surface of the slider, and two sliding rods three slide through the positioning rod, and the bottom ends of the two sliding rods three are fixedly connected to a positioning frame, and the outer walls of the two sliding rods three are wrapped with a spring three, one end of the spring three is fixedly connected to the positioning frame, and the other end of the spring three is fixedly connected to the positioning rod, and the inner wall of the positioning frame is rotatably connected to a positioning roller.

[0013] A welding method of a welding device for processing a controller metal shell comprises the following steps: S1: Before welding, when the hydraulic cylinder is driven to move the support plate downward, the hinged plate will drive the hinged rod to move vertically downward on the slide rod, so that the fixed rod and the L-shaped positioning plate on the hinged rod move downward synchronously, so that the L-shaped positioning plate squeezes and fixes the metal shell plate on the top surface of the fixed frame.

[0014] S2: Before fixing the metal shell plate, the metal shell plate can be placed between baffle plate 1 and baffle plate 2. Since the sizes and thicknesses of metal shell plates of different sizes are different, when the two metal shell plates are spliced ​​together, the two baffle plates 2 will be squeezed away from each other, driving the slide bar 2 and the cushion block to move. At this time, the spring 1 is squeezed, and the two positioning components 2 cooperate with each other to provide squeezing force on the splicing position between the two metal shell plates.

[0015] S3: Before welding, when the hydraulic cylinder is driven to move the support plate downward, since the support plate is not in contact with the fixed rod 2, the spring 2 is in a balanced state at this time, so that the positioning block is in contact with the metal shell plate to further position the metal shell plate. After welding is completed, when the metal shell plate needs to be removed, the hydraulic cylinder can be driven to move the support plate upward. Under the action of the slide groove 1 and the slide rod 1, the L-shaped positioning plate is away from the metal shell plate, and when the support plate moves upward to resist the fixed rod 2 and pushes the fixed rod 2 to move upward, the angle of the hinged rod 2 changes. At this time, the positioning block is away from the metal shell plate, so that the metal shell plate can be taken out, and under the joint action of the hinged block 1, the hinged block 2, the telescopic rod and the spring 2, when the support plate is away from the fixed rod 2, the angle of the hinged rod 2 is reset.

[0016] S4: When the driving motor drives the threaded rod 2 to rotate, with the cooperation of the support frame, the slider can slide left and right on the inner wall of the support frame, so that the hydraulic cylinder 2 drives the stir friction welding tool to move downward to weld the joint of the two metal shell plates, and when the slider moves to the right, the slide bar 3, the positioning frame and the spring 3 cooperate with each other, and when the positioning roller is tightly fitted with the joint of the two metal shell plates, the spring 3 is compressed, so that the positioning roller can perform secondary positioning on the joint between the two metal shell plates before welding.

[0017] The present invention has the following beneficial effects: 1. By providing a fixing mechanism and a positioning component, before welding, when the hydraulic cylinder is driven to move the support plate downward, the hinged plate will drive the hinged rod to move vertically downward on the slide rod, so that the fixing rod on the hinged rod and the L-shaped positioning plate move downward synchronously, so that the L-shaped positioning plate squeezes and fixes the metal shell plate on the top surface of the fixed frame, avoiding misalignment of the two metal shell plates during welding, improving the stability of the welding process, ensuring the accuracy and consistency of welding, and thus enhancing the strength and durability of the overall structure.

[0018] 2. By providing baffle plate 1 and positioning component 2, the metal shell plate can be placed between baffle plate 1 and baffle plate 2 before fixing the metal shell plate. Since the sizes and thicknesses of metal shell plates of different sizes are different, when the two metal shell plates are spliced ​​together, the two baffle plates 2 will be squeezed away from each other, driving the slide bar 2 and the cushion block to move. At this time, the spring 1 is squeezed, and the two positioning components 2 cooperate with each other to provide squeezing force on the splicing position between the two metal shell plates, so that the two metal shell plates are more compact when spliced ​​together, thereby further improving the accuracy and consistency of welding.

[0019] 3. By providing a positioning component three, before welding, when the hydraulic cylinder one is driven to drive the support plate to move downward, since the support plate is not in contact with the fixed rod two, the spring two is in a balanced state at this time, so that the positioning block is in contact with the metal shell plate to further position the metal shell plate, thereby further improving the accuracy and consistency of welding. After welding is completed, when the metal shell plate needs to be removed, the hydraulic cylinder one can be driven to drive the support plate to move upward. Under the action of the slide groove one and the slide rod one, the L-shaped positioning plate is away from the metal shell plate, and when the support plate moves upward to resist the fixed rod two and pushes the fixed rod two to move upward, the angle of the hinged rod two changes. At this time, the positioning block is away from the metal shell plate, so that the metal shell plate can be taken out, and under the joint action of the hinge block one, the hinge block two, the telescopic rod and the spring two, when the support plate is away from the fixed rod two, the angle of the hinged rod two is reset. The operation is simple and fast, and is suitable for batch welding of metal shell plates. The threaded rod one and the handle cooperate with each other and can be adjusted according to metal shell plates of different sizes, so that the positioning block can always fit on the outer edge of the metal shell plate.

[0020] 4. By providing a welding mechanism, when the driving motor drives the threaded rod 2 to rotate, with the cooperation of the support frame, the slider can slide left and right on the inner wall of the support frame, so that the hydraulic cylinder 2 drives the stir friction welding tool to move downward to weld the joint of the two metal shell plates, and when the slider moves to the right, the slide bar 3, the positioning frame and the spring 3 cooperate with each other, and when the positioning roller is tightly fitted with the joint of the two metal shell plates, the spring 3 is compressed, so that the positioning roller can perform secondary positioning on the joint between the two metal shell plates before welding, thereby further improving the accuracy and consistency of welding.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the welding mechanism of the present invention; Figure 3 It is a structural schematic diagram of a positioning component 1 of the present invention; Figure 4 It is a structural schematic diagram of the fixing mechanism of the present invention; Figure 5 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 6 for Figure 1 A schematic diagram of the enlarged structure at B in the middle; Figure 7 for Figure 2 Schematic diagram of the enlarged structure at C in the middle; Figure 8 for Figure 3 Schematic diagram of the enlarged structure at D in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bottom plate; 11. Vertical plate; 2. Fixing mechanism; 3. Welding mechanism; 4. Metal shell plate; 21. Fixing frame; 22. Hydraulic cylinder 1; 23. Support plate; 24. Positioning assembly 1; 241. Articulated plate; 242. Articulated rod 1; 243. Slide 1; 244. Fixed plate 1; 245. Slide 1; 246. Fixed rod 1; 247. L-shaped positioning plate; 25. Baffle 1; 26. Positioning assembly 2; 261. Connecting frame; 262. Slide 2; 263. Baffle 2; 264. Slide 2; 265. Pad; 266 , spring one; 27, positioning component three; 271, fixed plate two; 272, hinged rod two; 273, fixed rod two; 274, hinged block one; 275, hinged block two; 276, telescopic rod; 277, spring two; 278, threaded rod one; 279, handle; 2791, positioning block; 31, motor; 32, support frame; 33, threaded rod two; 34, slider; 35, hydraulic cylinder two; 36, friction stir welding tool; 37, positioning rod; 371, slide rod three; 372, positioning frame; 373, spring three; 374, positioning roller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-8 As shown, the present invention is a welding device and welding method for processing a controller metal shell, comprising a bottom plate 1 and a vertical plate 11, two fixing mechanisms 2 and a welding mechanism 3 are arranged on the bottom plate 1, the top surface of the bottom plate 1 is fixedly connected to the vertical plate 11, and the two fixing mechanisms 2 are symmetrically arranged with the vertical plate 11 as the center axis. The fixing mechanism 2 includes a fixing frame 21 fixedly connected to the top surface of the bottom plate 1, the inner bottom wall of the fixing frame 21 is fixedly connected to a hydraulic cylinder 22, the output end of the hydraulic cylinder 22 is fixedly connected to a support plate 23, and the top surface of the support plate 23 is provided with a positioning assembly 24; the positioning assembly 24 includes a hinged plate 241 fixedly connected to the top surface of the support plate 23, a hinged rod 242 is hinged on the hinged plate 241, and a slide groove 243 is provided on the hinged rod 242; the top surface of the fixing frame 21 is fixedly connected to a fixing plate 244, and a sliding rod 245 is fixedly connected to the side of the fixing plate 244 close to the hinged rod 242, and the sliding rod 245 The fixing rod 246 is fixedly connected to the inner wall of the slide groove 243, and the end of the hinge rod 242 away from the positioning component 24 is fixedly penetrated by the fixing rod 246, and the bottom end of the fixing rod 246 is fixedly connected to the L-shaped positioning plate 247, and the top surface of the fixed frame 21 is placed with a metal shell plate 4, and the L-shaped positioning plate 247 contacts the top surface of the metal shell plate 4, and the top surface of the fixed frame 21 is fixedly connected with a baffle 25, and the top surface of the fixed frame 21 is provided with a positioning component 26; the positioning component 26 includes a connecting frame 261 opened on the top surface of the fixed frame 21, and the top surface of the fixed frame 21 is provided with a slide groove 262, and the inner wall of the slide groove 262 is slidably connected with a baffle Plate 263, baffle plate 263 is in contact with the metal shell plate 4, and two slide bars 264 are fixedly connected to one side of the baffle plate 263 away from the metal shell plate 4, and the ends of the two slide bars 264 away from the baffle plate 263 are fixedly connected to the cushion block 265, and the outer walls of the two slide bars 264 are wound with springs 1 266, one end of the spring 1 266 is fixedly connected to the connecting frame 261, and the other end of the spring 1 266 is fixedly connected to the cushion block 265. The top surface of the fixed frame 21 is provided with a positioning component 3 27; the positioning component 3 27 includes two fixed plates 271 fixedly connected to the top surface of the fixed frame 21, and the two fixed plates 271 are between A hinged hinged rod 272 is hinged, a fixed rod 273 is fixedly passed through the hinged rod 272, a hinged block 274 is hinged on the bottom surface of the fixed frame 21, a hinged block 275 is hinged on the top surface of the hinged rod 272, a telescopic rod 276 is fixedly connected between the hinged block 1 274 and the hinged block 275, a spring 277 is wound around the outer wall of the telescopic rod 276, a spring 277 is threadedly passed through one end of the hinged rod 272 away from the fixed rod 273, a handle 279 is fixedly connected to one end of the threaded rod 1 278, and a positioning block 2791 is fixedly connected to the other end of the hinged rod 272, and the positioning block 2791 is in contact with the metal shell plate 4.

[0027] By providing the fixing mechanism 2 and the positioning assembly 24, before welding, when the hydraulic cylinder 22 is driven to drive the support plate 23 to move downward, the hinge plate 241 will drive the hinge rod 242 to move vertically downward on the slide rod 245, so that the fixing rod 246 and the L-shaped positioning plate 247 on the hinge rod 242 move downward synchronously, so that the L-shaped positioning plate 247 squeezes and fixes the metal shell plate 4 on the top surface of the fixed frame 21, thereby avoiding the misalignment of the two metal shell plates 4 during welding, improving the stability of the welding process, ensuring the accuracy and consistency of welding, thereby enhancing the strength and durability of the overall structure, and providing the baffle plate 25 The metal shell plate 4 can be placed between the baffle plate 1 25 and the baffle plate 263 before being fixed. Since the metal shell plates 4 of different sizes have different thicknesses, when the two metal shell plates 4 are spliced ​​together, the two baffle plates 263 will be squeezed away from each other, driving the slide bar 264 and the cushion block 265 to move. At this time, the spring 1 266 is squeezed, and the two positioning components 26 cooperate with each other to provide squeezing force on the splicing position between the two metal shell plates 4, so that the two metal shell plates 4 are more compact when spliced ​​together, thereby further improving the accuracy and consistency of welding. By providing the positioning component 3 2 7. Before welding, when the hydraulic cylinder 1 22 is driven to drive the support plate 23 to move downward, since the support plate 23 is not in contact with the second fixing rod 273, the second spring 277 is in a balanced state, so that the positioning block 2791 is in contact with the metal shell plate 4 to further position the metal shell plate 4, thereby further improving the accuracy and consistency of welding. After the welding is completed, when the metal shell plate 4 needs to be removed, the hydraulic cylinder 1 22 can be driven to drive the support plate 23 to move upward. Under the action of the slide groove 1 243 and the slide rod 1 245, the L-shaped positioning plate 247 is away from the metal shell plate 4, and when the support plate 23 moves upward, it presses against the second fixing rod 273 and pushes When the fixing rod 273 moves upward, the angle of the hinge rod 272 changes. At this time, the positioning block 2791 is away from the metal shell plate 4, so that the metal shell plate 4 can be taken out. Under the joint action of the hinge block 1 274, the hinge block 275, the telescopic rod 276 and the spring 277, when the support plate 23 is away from the fixing rod 273, the angle of the hinge rod 272 is reset. The operation is simple and fast, and it is suitable for batch welding of metal shell plates 4. The threaded rod 1 278 and the handle 279 cooperate with each other and can be adjusted according to metal shell plates 4 of different sizes, so that the positioning block 2791 can always fit on the outer edge of the metal shell plate 4.

[0028] The welding mechanism 3 includes a motor 31 fixedly connected to the right side of the vertical plate 11, and a support frame 32 is fixedly connected to the left side of the vertical plate 11. The output end of the motor 31 is fixedly connected to a threaded rod 2 33 through a coupling. The threaded rod 2 33 rotates and penetrates the support frame 32. The outer wall thread sleeve of the threaded rod 2 33 is provided with a slider 34. The slider 34 is slidably connected to the inner wall of the support frame 32. The bottom surface of the slider 34 is fixedly connected to a hydraulic cylinder 2 35. The output end of the hydraulic cylinder 2 35 is fixedly connected to a friction stir welding tool 36. The bottom surface of the slider 34 is fixedly connected to a positioning rod 37. The positioning rod 37 slides and penetrates two sliding rods 371. The bottom ends of the two sliding rods 371 are fixedly connected to a positioning frame 372. The outer walls of the two sliding rods 371 are wound with springs 373. One end of the spring 373 is fixedly connected to the positioning frame 372, and the other end of the spring 373 is fixedly connected to the positioning rod 37. The inner wall of the positioning frame 372 is rotatably connected with a positioning roller 374.

[0029] By providing a welding mechanism 3, when the driving motor 31 drives the second threaded rod 33 to rotate, with the cooperation of the support frame 32, the slider 34 can slide left and right on the inner wall of the support frame 32, so that the second hydraulic cylinder 35 drives the stir friction welding tool 36 to move downward to weld the joint of the two metal shell plates 4, and when the slider 34 moves to the right, the sliding rod three 371, the positioning frame 372 and the spring three 373 cooperate with each other, and when the positioning roller 374 is tightly fitted with the joint of the two metal shell plates 4, the spring three 373 is compressed, so that the positioning roller 374 can perform secondary positioning on the joint between the two metal shell plates 4 before welding, thereby further improving the accuracy and consistency of welding.

[0030] A welding method of a welding device for processing a controller metal shell comprises the following steps: S1: Before welding, when the hydraulic cylinder 22 is driven to drive the support plate 23 to move downward, the hinged plate 241 will drive the hinged rod 242 to move vertically downward on the slide rod 245, so that the fixed rod 246 and the L-shaped positioning plate 247 on the hinged rod 242 move downward synchronously, so that the L-shaped positioning plate 247 squeezes and fixes the metal shell plate 4 on the top surface of the fixed frame 21.

[0031] S2: Before fixing the metal shell plate 4, the metal shell plate 4 can be placed between baffle plate 1 25 and baffle plate 2 263. Since the sizes and thicknesses of metal shell plates 4 of different sizes are different, when the two metal shell plates 4 are spliced ​​together, the two baffle plates 263 will be squeezed away from each other, driving the slide bar 264 and the cushion block 265 to move. At this time, the spring 1 266 is squeezed, and the two positioning components 26 cooperate with each other to provide squeezing force on the splicing position between the two metal shell plates 4.

[0032] S3: Before welding, when the hydraulic cylinder 1 22 is driven to drive the support plate 23 to move downward, since the support plate 23 is not in contact with the fixing rod 273, the spring 277 is in a balanced state, so that the positioning block 2791 is in contact with the metal shell plate 4 to further position the metal shell plate 4. After welding is completed, when the metal shell plate 4 needs to be removed, the hydraulic cylinder 1 22 can be driven to drive the support plate 23 to move upward. Under the action of the slide groove 1 243 and the slide rod 1 245, the L-shaped positioning plate 2 47 is away from the metal shell plate 4, and when the support plate 23 moves upward to resist the fixing rod 273 and push the fixing rod 273 to move upward, the angle of the hinged rod 272 changes. At this time, the positioning block 2791 is away from the metal shell plate 4, so that the metal shell plate 4 can be taken out, and under the joint action of the hinge block 1 274, the hinge block 275, the telescopic rod 276 and the spring 277, when the support plate 23 is away from the fixing rod 273, the angle of the hinged rod 272 is reset.

[0033] S4: When the driving motor 31 drives the threaded rod 2 33 to rotate, with the cooperation of the support frame 32, the slider 34 can slide left and right on the inner wall of the support frame 32, so that the hydraulic cylinder 2 35 drives the stir friction welding tool 36 to move downward to weld the joint of the two metal shell plates 4, and when the slider 34 moves to the right, the slide bar 371, the positioning frame 372 and the spring 373 cooperate with each other, and when the positioning roller 374 is tightly fitted with the joint of the two metal shell plates 4, the spring 373 is compressed, so that the positioning roller 374 can perform secondary positioning on the joint between the two metal shell plates 4 before welding.

[0034] A specific application of this embodiment is: Friction stir welding refers to using the heat generated by the friction between the high-speed rotating welding tool and the workpiece to partially melt the material to be welded. When the welding tool moves forward along the welding interface, the plasticized material flows from the front to the rear of the welding tool under the action of the rotating friction force of the welding tool, and forms a dense solid phase weld under the extrusion of the welding tool.

[0035] By providing the fixing mechanism 2 and the positioning assembly 24, before welding, when the hydraulic cylinder 22 is driven to drive the support plate 23 to move downward, the hinge plate 241 will drive the hinge rod 242 to move vertically downward on the slide rod 245, so that the fixing rod 246 and the L-shaped positioning plate 247 on the hinge rod 242 move downward synchronously, so that the L-shaped positioning plate 247 squeezes and fixes the metal shell plate 4 on the top surface of the fixed frame 21, avoiding the misalignment of the two metal shell plates 4 during welding, improving the stability of the welding process, ensuring the accuracy and consistency of welding, and thus enhancing the strength and durability of the overall structure; By providing the baffle plate 1 25 and the positioning assembly 2 26, the metal shell plate 4 can be placed between the baffle plate 1 25 and the baffle plate 2 263 before fixing the metal shell plate 4. Since the sizes and thicknesses of the metal shell plates 4 of different sizes are different, when the two metal shell plates 4 are spliced ​​together, the two baffle plates 263 will be squeezed away from each other, driving the slide bar 264 and the cushion block 265 to move. At this time, the spring 1 266 is squeezed, and the two positioning assemblies 26 cooperate with each other to provide squeezing force on the splicing position between the two metal shell plates 4, so that the two metal shell plates 4 are more compact when spliced ​​together, thereby further improving the accuracy and consistency of welding; By providing the positioning assembly three 27, before welding, when the hydraulic cylinder one 22 is driven to drive the support plate 23 to move downward, since the support plate 23 is not in contact with the fixing rod two 273, the spring two 277 is in a balanced state at this time, so that the positioning block 2791 is in contact with the metal shell plate 4 to further position the metal shell plate 4, thereby further improving the accuracy and consistency of welding. After the welding is completed, when the metal shell plate 4 needs to be removed, the hydraulic cylinder one 22 can be driven to drive the support plate 23 to move upward. Under the action of the slide groove one 243 and the slide rod one 245, the L-shaped positioning plate 247 is away from the metal shell plate 4, and when the support plate 23 moves upward to abut against the fixing rod two 2 When the support plate 23 moves away from the fixing rod 273, the angle of the hinge rod 272 changes. At this time, the positioning block 2791 is away from the metal shell plate 4, so that the metal shell plate 4 can be taken out. Under the joint action of the hinge block 1 274, the hinge block 275, the telescopic rod 276 and the spring 277, when the support plate 23 is away from the fixing rod 273, the angle of the hinge rod 272 is reset. The operation is simple and fast, and it is suitable for batch welding of metal shell plates 4. The threaded rod 1 278 and the handle 279 cooperate with each other and can be adjusted according to metal shell plates 4 of different sizes, so that the positioning block 2791 can always fit on the outer edge of the metal shell plate 4. By providing a welding mechanism 3, when the driving motor 31 drives the second threaded rod 33 to rotate, with the cooperation of the support frame 32, the slider 34 can slide left and right on the inner wall of the support frame 32, so that the second hydraulic cylinder 35 drives the stir friction welding tool 36 to move downward to weld the joint of the two metal shell plates 4, and when the slider 34 moves to the right, the sliding rod three 371, the positioning frame 372 and the spring three 373 cooperate with each other, and when the positioning roller 374 is tightly fitted with the joint of the two metal shell plates 4, the spring three 373 is compressed, so that the positioning roller 374 can perform secondary positioning on the joint between the two metal shell plates 4 before welding, thereby further improving the accuracy and consistency of welding.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding device for processing a metal shell of a controller, comprising a bottom plate (1) and a vertical plate (11), wherein the bottom plate (1) is provided with two fixing mechanisms (2) and a welding mechanism (3), the top surface of the bottom plate (1) is fixedly connected to the vertical plate (11), and the two fixing mechanisms (2) are symmetrically arranged with the vertical plate (11) as the central axis, characterized in that: The fixing mechanism (2) comprises a fixing frame (21) fixedly connected to the top surface of the bottom plate (1), a hydraulic cylinder 1 (22) being fixedly connected to the inner bottom wall of the fixing frame (21), an output end of the hydraulic cylinder 1 (22) being fixedly connected to a support plate (23), and a positioning assembly 1 (24) being provided on the top surface of the support plate (23); The positioning assembly (24) comprises a hinged plate (241) fixedly connected to the top surface of the support plate (23), a hinged rod (242) being hingedly connected to the hinged plate (241), a slide groove (243) being provided on the hinged rod (242), a fixed plate (244) being fixedly connected to the top surface of the fixed frame (21), a slide rod (243) being fixedly connected to the side of the fixed plate (244) close to the hinged rod (242), 5), the sliding rod 1 (245) is slidably connected to the inner wall of the sliding groove 1 (243), and a fixing rod 1 (246) is fixedly passed through the end of the hinged rod 1 (242) away from the positioning assembly 1 (24), and the bottom end of the fixing rod 1 (246) is fixedly connected to an L-shaped positioning plate (247), and a metal shell plate (4) is placed on the top surface of the fixed frame (21), and the L-shaped positioning plate (247) is in contact with the top surface of the metal shell plate (4).

2. A welding device for processing a metal shell of a controller according to claim 1, characterized in that: A baffle plate 1 (25) is fixedly connected to the top surface of the fixed frame (21), and a positioning component 2 (26) is provided on the top surface of the fixed frame (21); The second positioning component (26) includes a connection frame (261) opened on the top surface of the fixed frame (21), the top surface of the fixed frame (21) is provided with a second slide groove (262), the inner wall of the second slide groove (262) is slidably connected with a second baffle (263), the second baffle (263) is in contact with the metal shell plate (4), and the side of the second baffle (263) away from the metal shell plate (4) is fixedly connected with two second slide rods (264), and the ends of the two second slide rods (264) away from the second baffle (263) are fixedly connected with a cushion block (265).

3. A welding device for processing a metal shell of a controller according to claim 2, characterized in that: The outer walls of the two sliding rods (264) are both wound with springs (266), one end of the springs (266) is fixedly connected to the connecting frame (261), and the other end of the springs (266) is fixedly connected to the cushion block (265).

4. A welding device for processing a metal shell of a controller according to claim 3, characterized in that: A positioning component three (27) is provided on the top surface of the fixed frame (21); The positioning component three (27) comprises two fixing plates two (271) fixedly connected to the top surface of the fixing frame (21), a hinge rod two (272) being hinged between the two fixing plates two (271), a fixing rod two (273) being fixedly passed through the hinge rod two (272), a hinge block one (274) being hinged on the bottom surface of the fixing frame (21), a hinge block two (275) being hinged on the top surface of the hinge rod two (272), a telescopic rod (276) being fixedly connected between the hinge block one (274) and the hinge block two (275), and a spring two (277) being wound around the outer wall of the telescopic rod (276).

5. A welding device for processing a metal shell of a controller according to claim 4, characterized in that: A spring 2 (277) is threadedly inserted into one end of the hinged rod 2 (272) away from the fixed rod 2 (273); one end of the threaded rod 1 (278) is fixedly connected to a handle (279); the other end of the hinged rod 2 (272) is fixedly connected to a positioning block (2791); the positioning block (2791) is in contact with the metal shell plate (4).

6. A welding device for processing a metal shell of a controller according to claim 5, characterized in that: The welding mechanism (3) comprises a motor (31) fixedly connected to the right side of the vertical plate (11); the left side of the vertical plate (11) is fixedly connected to a support frame (32); the output end of the motor (31) is fixedly connected to a second threaded rod (33) via a coupling; the second threaded rod (33) rotatably penetrates the support frame (32).

7. A welding device for processing a metal shell of a controller according to claim 6, characterized in that: The outer wall thread sleeve of the second threaded rod (33) is provided with a slider (34), the slider (34) is slidably connected to the inner wall of the support frame (32), the bottom surface of the slider (34) is fixedly connected to the second hydraulic cylinder (35), and the output end of the second hydraulic cylinder (35) is fixedly connected to the friction stir welding tool (36).

8. A welding device for processing a metal shell of a controller according to claim 7, characterized in that: The bottom surface of the slider (34) is fixedly connected to a positioning rod (37), and two sliding rods (371) are slidably passed through the positioning rod (37), and the bottom ends of the two sliding rods (371) are fixedly connected to a positioning frame (372), and the outer walls of the two sliding rods (371) are wound with a spring (373), one end of the spring (373) is fixedly connected to the positioning frame (372), and the other end of the spring (373) is fixedly connected to the positioning rod (37), and the inner wall of the positioning frame (372) is rotatably connected to a positioning roller (374).

9. A welding method of a welding device for processing a metal shell of a controller, using the welding device for processing a metal shell of a controller according to claims 1-8, characterized in that: It includes the following steps: S1: Before welding, when the hydraulic cylinder 1 (22) is driven to drive the support plate (23) to move downward, the hinge plate (241) drives the hinge rod 1 (242) to move vertically downward on the slide rod 1 (245), so that the fixed rod 1 (246) and the L-shaped positioning plate (247) on the hinge rod 1 (242) move downward synchronously, so that the L-shaped positioning plate (247) squeezes and fixes the metal shell plate (4) on the top surface of the fixed frame (21); S2: Before the metal shell plate (4) is fixed, the metal shell plate (4) can be placed between the baffle plate 1 (25) and the baffle plate 2 (263). Since the metal shell plates (4) of different sizes have different sizes and thicknesses, when the two metal shell plates (4) are spliced ​​together, the two baffle plates 2 (263) will be squeezed away from each other, driving the slide bar 2 (264) and the cushion block (265) to move. At this time, the spring 1 (266) is squeezed, and the two positioning components 2 (26) cooperate with each other to provide squeezing force on the splicing position between the two metal shell plates (4); S3: Before welding, when the hydraulic cylinder 1 (22) is driven to drive the support plate (23) to move downward, since the support plate (23) is not in contact with the fixing rod 2 (273), the spring 2 (277) is in a balanced state, so that the positioning block (2791) is in contact with the metal shell plate (4) to further position the metal shell plate (4). After welding is completed, when the metal shell plate (4) needs to be removed, the hydraulic cylinder 1 (22) can be driven to drive the support plate (23) to move upward, and under the action of the slide groove 1 (243) and the slide rod 1 (245), the L-shaped positioning plate (247) is moved upward. ) is away from the metal shell plate (4), and when the support plate (23) moves upward to abut against the second fixing rod (273) and pushes the second fixing rod (273) to move upward, the angle of the second hinge rod (272) changes, and at this time the positioning block (2791) is away from the metal shell plate (4), so that the metal shell plate (4) can be removed, and under the joint action of the first hinge block (274), the second hinge block (275), the telescopic rod (276) and the second spring (277), when the support plate (23) is away from the second fixing rod (273), the angle of the second hinge rod (272) is reset; S4: When the driving motor (31) drives the second threaded rod (33) to rotate, with the cooperation of the support frame (32), the slider (34) can slide left and right on the inner wall of the support frame (32), so that the second hydraulic cylinder (35) drives the friction stir welding tool (36) to move downward to weld the joint of the two metal shell plates (4), and when the slider (34) moves to the right, the sliding rod (371), the positioning frame (372) and the spring (373) cooperate with each other, and when the positioning roller (374) is tightly fitted with the joint of the two metal shell plates (4), the spring (373) is compressed, so that the positioning roller (374) can perform secondary positioning on the joint between the two metal shell plates (4) before welding.

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