Special-shaped stainless steel part clamping and welding device

Abstract

The invention discloses a clamping and welding device for special-shaped stainless steel parts, which belongs to the technical field of stainless steel welding and comprises a base mechanism, and two clamping mechanisms for clamping the special-shaped stainless steel parts and an operation mechanism for welding the special-shaped stainless steel parts are arranged on the base mechanism; the base mechanism can drive the two clamping mechanisms to make contact with the to-be-welded special-shaped stainless steel parts, under the action of an electric cylinder spring, the two to-be-welded special-shaped stainless steel parts are kept tightly attached, and the welding quality is improved; according to the clamping mechanism, the to-be-welded special-shaped stainless steel part can be better clamped through the three clamping modules, a certain amount of displacement in the height direction and the horizontal direction can be conducted among the three clamping modules, and the clamping stability is improved; the operation mechanism can enable the welding gun to be tightly attached to the to-be-welded special-shaped stainless steel part, and the welding quality is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel welding, and in particular to a clamping and welding device for special-shaped stainless steel parts. Background Art

[0002] Special-shaped stainless steel parts refer to stainless steel parts with irregular shapes that have been specially processed or customized. These parts are usually used in application scenarios that require special structures, sizes or shapes. Different from standard, common shapes such as stainless steel plates, tubes, and profiles, special-shaped stainless steel parts may have more complex or unique designs. Special-shaped stainless steel parts are widely used in many fields, especially in engineering projects that require corrosion resistance, high strength and special shapes. Special-shaped stainless steel parts usually require multiple clamps to clamp when welding, and the welding trajectory is not a straight line; the stainless steel parts clamping and welding devices in the prior art are usually unable to stably clamp special-shaped stainless steel parts, resulting in poor welding quality. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a device for clamping and welding special-shaped stainless steel parts, comprising a base mechanism, the base mechanism comprising a bottom plate, the base mechanism being provided with two clamping mechanisms for clamping special-shaped stainless steel parts and an operating mechanism for welding the special-shaped stainless steel parts, the clamping mechanism comprising a lifting frame, the operating mechanism comprising a rack frame, and the rack frame being fixedly mounted on the bottom plate; The base mechanism comprises a movable seat and a fixed seat, and the lifting frames of the two clamping mechanisms are slidably installed in the movable seat and the fixed seat respectively.

[0004] Furthermore, the base mechanism also includes a fixed frame fixedly mounted on the bottom plate, a fixed seat fixedly mounted on the fixed frame, a cylindrical sleeve fixedly mounted on the fixed seat, a plurality of bottom wheels rotatably mounted below the movable seat, the bottom wheels roll on the bottom plate, an inner slide fixedly mounted on the movable seat, the inner slide is slidably mounted on the fixed frame, an electric cylinder is fixedly mounted on the movable seat, an electric cylinder spring is fixedly mounted on the output end of the electric cylinder, and the other end of the electric cylinder spring is fixedly mounted on the fixed seat.

[0005] When the clamping mechanism completes clamping the special-shaped stainless steel parts to be welded, the electric cylinder contracts, driving the movable seat and the inner slide plate to slide along the fixed frame, so that the movable seat is close to the fixed seat, and the special-shaped stainless steel parts of the clamping mechanism on the fixed seat are docked with the special-shaped stainless steel parts of the clamping mechanism on the movable seat. When the two special-shaped stainless steel parts are docked, the electric cylinder continues to contract so that the electric cylinder spring is stretched, so that the two special-shaped stainless steel parts remain tightly attached.

[0006] Furthermore, the clamping mechanism also includes a vertical electric cylinder fixedly mounted on the lifting frame, a rotating block is fixedly mounted on the output end of the vertical electric cylinder, and a rotating rod is rotatably mounted on the rotating block.

[0007] Furthermore, the clamping mechanism also includes three clamping modules, and the clamping module includes a lower clamping block, an upper guide column is fixedly installed on the lower clamping block, an upper clamping block is slidably installed on the upper guide column, and a guide column spring is arranged between the upper guide column and the upper clamping block.

[0008] Furthermore, the lower clamping block of the clamping module next to the lifting frame is fixedly installed with the lifting frame, a lifting block is fixedly installed below the lower clamping block of the clamping module farthest from the lifting frame, a moving seat is slidably installed below the lifting block, a plurality of moving rollers are rotatably installed at the bottom of the moving seat, the moving rollers of the clamping mechanism located on one side of the fixed seat roll on the bottom plate, the moving rollers of the clamping mechanism located on one side of the movable seat roll on the inner slide board, an inner spring is arranged between the lifting block and the moving seat, an extending column is fixedly installed on the upper clamping block of the clamping module farthest from the lifting frame, and the extending column is rotatably installed with the rotating rod.

[0009] Furthermore, an intermediate spring is provided between the lower clamping block of the clamping module located in the middle and the lower clamping block of the clamping module located on the lifting block.

[0010] Furthermore, a connecting block is fixedly installed on the upper clamping block of the clamping module located on the lifting block, an inner chain is fixedly installed on the connecting block, and the inner chain passes through the clamping blocks on the other two clamping modules; an inner connecting block is fixedly installed on the upper clamping block of the clamping module located in the middle, an outer chain is fixedly installed on the inner connecting block, and the outer chain passes through the upper clamping block of the clamping module located on the lifting frame.

[0011] When in use, the special-shaped stainless steel parts to be welded are placed between the upper clamping block and the lower clamping block of the two clamping mechanisms respectively, the clamping force is applied through the upper guide column, the vertical electric cylinder contracts, and the rotating rod is driven to rotate through the rotating block, thereby driving the extending column and the outermost clamping module to move outward, and the outermost clamping module moves outward with the middle clamping module through the middle spring, and the three clamping modules will not be displaced along the extension and contraction direction of the electric cylinder through the inner chain and the outer chain, and the outermost clamping module can be raised and lowered through the inner spring, and the clamping mechanism can clamp special-shaped parts with different local thicknesses, and the clamping stability of the special-shaped stainless steel parts is improved through the three clamping modules.

[0012] Furthermore, the operating mechanism includes a vertical rack fixedly mounted on a rack frame, a moving wheel rotatably mounted on the bottom plate, a moving block rotatably mounted on the moving wheel, a cross frame fixedly mounted on the moving block, a motor fixedly mounted on the cross frame, and a motor gear fixedly mounted on the motor shaft of the motor.

[0013] Furthermore, a top block is fixedly installed on the horizontal frame, a docking gear is rotatably installed on the top block, a probe is slidably installed on the top block, a slope is provided on the probe, a probe spring is provided between the probe and the top block, a motor seat is rotatably installed on the top block, a slide groove is provided on the motor seat, the motor seat and the probe are rotatably installed through the slide groove, a docking motor is fixedly installed on the motor seat, an output gear is fixedly installed on the motor shaft of the docking motor, and the docking gear is meshed with the vertical rack.

[0014] Furthermore, a mounting frame is fixedly installed on the horizontal frame, a support frame is slidably installed on the mounting frame, a support spring is arranged between the support frame and the mounting frame, a support wheel is rotatably installed on the support frame, a welding gun is fixedly installed on the support frame, a cross rack is fixedly installed under the mounting frame, and the cross rack is meshed with the motor gear.

[0015] When the special-shaped stainless steel parts are clamped on the clamping mechanism on one side of the fixed seat, the special-shaped stainless steel parts will push the probe to slide along the top block, and the probe spring will be compressed, driving the motor seat to rotate relative to the top block, so that the output gear and the docking gear are meshed. When all the special-shaped stainless steel parts are clamped, the docking motor is started, driving the output gear to rotate, thereby driving the docking gear to rotate, thereby driving the cross frame and the moving block to move relative to the bottom plate through the moving wheel. When the slope end of the probe leaves the edge of the special-shaped stainless steel part, the probe spring rebounds, causing the probe to reset, thereby causing the output gear to disengage from the docking gear, indicating that this position is the welding position. Subsequently, the electric cylinder contracts, causing the two special-shaped stainless steel parts to contact, and the support spring causes the support wheel to always contact the special-shaped stainless steel part. The rotation of the motor drives the motor gear to rotate, thereby driving the mounting frame to slide along the cross frame through the cross rack, and the special-shaped stainless steel parts are welded by the welding gun.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The base mechanism provided in the present invention can drive the two clamping mechanisms to contact the special-shaped stainless steel parts to be welded, and under the action of the electric cylinder spring, the two special-shaped stainless steel parts to be welded are kept in close contact, thereby improving the welding quality; (2) The clamping mechanism provided in the present invention can better clamp the special-shaped stainless steel parts to be welded through three clamping modules, and the three clamping modules can be displaced in a certain amount in the height direction and the horizontal direction, thereby improving the clamping stability; (3) The operating mechanism provided in the present invention can keep the welding gun in close contact with the special-shaped stainless steel parts to be welded, thereby further improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 The base structure of the present invention is shown in FIG. Figure 1 .

[0019] Figure 3 The base structure of the present invention is shown in FIG. Figure 2 .

[0020] Figure 4 The clamping mechanism structure of the present invention is schematically shown in FIG. Figure 1 .

[0021] Figure 5 The clamping mechanism structure of the present invention is schematically shown in FIG. Figure 2 .

[0022] Figure 6 The structure of the operating mechanism of the present invention is shown in FIG. Figure 1 .

[0023] Figure 7 The structure of the operating mechanism of the present invention is shown in FIG. Figure 2 .

[0024] Figure 8 The structure of the operating mechanism of the present invention is shown in FIG. Figure 3 .

[0025] Reference numerals: 101-bottom plate; 102-movable seat; 103-bottom wheel; 104-inner slide; 105-electric cylinder; 106-fixed frame; 107-electric cylinder spring; 108-cylinder sleeve; 109-fixed seat; 201-movable seat; 202-moving roller; 203-lifting frame; 204-inner chain; 205-vertical cylinder; 206-rotating block; 207-rotating rod; 208-upper clamping block; 209-extending column; 210-lifting block; 211-inner spring; 212-lower clamping block; 213-upper guide column; 214-guide column spring; 215-connecting Connecting block; 216-inner connecting block; 217-outer chain; 218-middle spring; 301-rack frame; 302-vertical rack; 303-moving block; 304-moving wheel; 305-motor; 306-motor gear; 307-horizontal rack; 308-top block; 309-docking gear; 310-probe; 311-probe spring; 312-motor seat; 313-slide; 314-docking motor; 315-output gear; 316-mounting frame; 317-support frame; 318-support spring; 319-support wheel; 320-welding gun; 321-horizontal frame. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Example: Reference Figure 1-Figure 8A device for clamping and welding special-shaped stainless steel parts, comprising a base mechanism, the base mechanism comprising a bottom plate 101, the base mechanism being provided with two clamping mechanisms for clamping special-shaped stainless steel parts and an operating mechanism for welding the special-shaped stainless steel parts, the clamping mechanism comprising a lifting frame 203, the operating mechanism comprising a rack frame 301, the rack frame 301 being fixedly mounted on the bottom plate 101; The base mechanism includes a movable seat 102 and a fixed seat 109 , and the lifting frames 203 of the two clamping mechanisms are slidably installed in the movable seat 102 and the fixed seat 109 respectively.

[0028] like Figure 2 , Figure 3 As shown, the base mechanism also includes a fixed frame 106 fixedly mounted on the base plate 101, a fixed seat 109 fixedly mounted on the fixed frame 106, a cylindrical sleeve 108 fixedly mounted on the fixed seat 109, a plurality of bottom wheels 103 are rotatably mounted below the movable seat 102, the bottom wheels 103 roll on the base plate 101, an inner slide 104 is fixedly mounted on the movable seat 102, the inner slide 104 is slidably mounted with the fixed frame 106, an electric cylinder 105 is fixedly mounted on the movable seat 102, an electric cylinder spring 107 is fixedly mounted on the output end of the electric cylinder 105, and the other end of the electric cylinder spring 107 is fixedly mounted with the fixed seat 109.

[0029] When the clamping mechanism completes clamping the special-shaped stainless steel parts to be welded, the electric cylinder 105 contracts, driving the movable seat 102 and the inner slide 104 to slide along the fixed frame 106, so that the movable seat 102 is close to the fixed seat 109, and the special-shaped stainless steel parts of the clamping mechanism on the fixed seat 109 are docked with the special-shaped stainless steel parts of the clamping mechanism on the movable seat 102. When the two special-shaped stainless steel parts are docked, the electric cylinder 105 continues to contract so that the electric cylinder spring 107 is stretched, so that the two special-shaped stainless steel parts remain tightly attached.

[0030] like Figure 4 , Figure 5 As shown, the clamping mechanism also includes a vertical electric cylinder 205 fixedly mounted on the lifting frame 203 , a rotating block 206 is fixedly mounted on the output end of the vertical electric cylinder 205 , and a rotating rod 207 is rotatably mounted on the rotating block 206 .

[0031] like Figure 4 , Figure 5 As shown, the clamping mechanism also includes three clamping modules, which include a lower clamping block 212 on which an upper guide column 213 is fixedly mounted, on which an upper clamping block 208 is slidably mounted, and a guide column spring 214 is provided between the upper guide column 213 and the upper clamping block 208 .

[0032] like Figure 4 , Figure 5As shown, the lower clamping block 212 of the clamping module next to the lifting frame 203 is fixedly installed with the lifting frame 203, and a lifting block 210 is fixedly installed below the lower clamping block 212 of the clamping module farthest from the lifting frame 203, and a moving seat 201 is slidably installed below the lifting block 210, and a plurality of moving rollers 202 are rotatably installed at the bottom of the moving seat 201, and the moving rollers 202 of the clamping mechanism located on one side of the fixed seat 109 roll on the bottom plate 101, and the moving rollers 202 of the clamping mechanism located on one side of the movable seat 102 roll on the inner slide plate 104, an inner spring 211 is arranged between the lifting block 210 and the moving seat 201, and an extending column 209 is fixedly installed on the upper clamping block 208 of the clamping module farthest from the lifting frame 203, and the extending column 209 is rotatably installed with the rotating rod 207.

[0033] like Figure 4 , Figure 5 As shown, an intermediate spring 218 is provided between the lower clamping block 212 of the clamping module located in the middle and the lower clamping block 212 of the clamping module located on the lifting block 210 .

[0034] like Figure 4 , Figure 5 As shown, a connecting block 215 is fixedly installed on the upper clamping block 208 of the clamping module located on the lifting block 210, and an inner chain 204 is fixedly installed on the connecting block 215. The inner chain 204 passes through the clamping blocks 208 on the other two clamping modules. An inner connecting block 216 is fixedly installed on the upper clamping block 208 of the clamping module located in the middle, and an outer chain 217 is fixedly installed on the inner connecting block 216. The outer chain 217 passes through the upper clamping block 208 of the clamping module located on the lifting frame 203.

[0035] When in use, the special-shaped stainless steel parts to be welded are placed between the upper clamping block 208 and the lower clamping block 212 of the two clamping mechanisms respectively, and the clamping force is applied by the upper guide column 213, the vertical electric cylinder 205 contracts, and the rotating rod 207 is driven to rotate by the rotating block 206, thereby driving the extending column 209 and the outermost clamping module to move outward, and the outermost clamping module moves outward with the middle clamping module through the middle spring 218. The inner chain 204 and the outer chain 217 prevent the three clamping modules from being displaced along the extension and retraction direction of the electric cylinder 105, and the inner spring 211 enables the outermost clamping module to be raised and lowered. The clamping mechanism can clamp special-shaped parts with different local thicknesses, and the clamping stability of the special-shaped stainless steel parts is improved by the three clamping modules.

[0036] like Figure 6-Figure 8As shown, the operating mechanism includes a vertical rack 302 fixedly mounted on a rack frame 301, a moving wheel 304 is rotatably mounted on the base plate 101, a moving block 303 is rotatably mounted on the moving wheel 304, a horizontal frame 321 is fixedly mounted on the moving block 303, a motor 305 is fixedly mounted on the horizontal frame 321, and a motor gear 306 is fixedly mounted on the motor shaft of the motor 305.

[0037] like Figure 6-Figure 8 As shown, a top block 308 is fixedly mounted on the cross frame 321, a docking gear 309 is rotatably mounted on the top block 308, a probe 310 is slidably mounted on the top block 308, a slope is provided on the probe 310, a probe spring 311 is provided between the probe 310 and the top block 308, a motor seat 312 is rotatably mounted on the top block 308, a slide groove 313 is provided on the motor seat 312, the motor seat 312 and the probe 310 are rotatably mounted via the slide groove 313, a docking motor 314 is fixedly mounted on the motor seat 312, an output gear 315 is fixedly mounted on the motor shaft of the docking motor 314, and the docking gear 309 is meshed with the vertical rack 302.

[0038] like Figure 6-Figure 8 As shown, a mounting frame 316 is fixedly installed on the horizontal frame 321, a support frame 317 is slidably installed on the mounting frame 316, a support spring 318 is arranged between the support frame 317 and the mounting frame 316, a support wheel 319 is rotatably installed on the support frame 317, a welding gun 320 is fixedly installed on the support frame 317, and a horizontal rack 307 is fixedly installed below the mounting frame 316, and the horizontal rack 307 is meshed with the motor gear 306.

[0039] When the special-shaped stainless steel parts are clamped to the clamping mechanism on one side of the fixed seat 109, the special-shaped stainless steel parts will push the probe 310 to slide along the top block 308, and the probe spring 311 will be compressed, driving the motor seat 312 to rotate relative to the top block 308, so that the output gear 315 is engaged with the docking gear 309. When all the special-shaped stainless steel parts are clamped, the docking motor 314 is started, driving the output gear 315 to rotate, thereby driving the docking gear 309 to rotate, thereby driving the cross frame 321 and the moving block 303 to move relative to the bottom plate 101 through the moving wheel 304. When the slope end of the probe 310 leaves the edge of the special-shaped stainless steel part, the probe spring 311 rebounds, causing the probe 310 to reset, thereby causing the output gear 315 to disengage from the docking gear 309, indicating that this position is the welding position. Subsequently, the electric cylinder 105 contracts, causing the two special-shaped stainless steel parts to contact, and the support spring 318 causes the support wheel 319 to always contact the special-shaped stainless steel part. The motor 305 rotates to drive the motor gear 306 to rotate, thereby driving the mounting frame 316 to slide along the horizontal frame 321 through the horizontal rack 307, and the special-shaped stainless steel part is welded by the welding gun 320.

[0040] The working principle of the special-shaped stainless steel parts clamping and welding device disclosed in the present invention is as follows: when in use, the special-shaped stainless steel parts to be welded are respectively placed between the upper clamping block 208 and the lower clamping block 212 of the two clamping mechanisms, and the clamping force is applied by the upper guide column 213, the vertical electric cylinder 205 contracts, and the rotating rod 207 is driven to rotate by the rotating block 206, thereby driving the extending column 209 and the outermost clamping module to move outward, and the outermost clamping module moves outward with the middle clamping module through the middle spring 218, and the three clamping modules will not be displaced along the extension and contraction direction of the electric cylinder 105 through the inner chain 204 and the outer chain 217, and the outermost clamping module can be raised and lowered through the inner spring 211, and the clamping mechanism can clamp the special-shaped parts with different local thicknesses, and the clamping stability of the special-shaped stainless steel parts is improved through the three clamping modules. When the special-shaped stainless steel parts are clamped to the clamping mechanism on one side of the fixed seat 109, the special-shaped stainless steel parts will push the probe 310 to slide along the top block 308, and the probe spring 311 will be compressed, driving the motor seat 312 to rotate relative to the top block 308, so that the output gear 315 is engaged with the docking gear 309. When all the special-shaped stainless steel parts are clamped, the docking motor 314 is started, driving the output gear 315 to rotate, thereby driving the docking gear 309 to rotate, thereby driving the cross frame 321 and the moving block 303 to move relative to the bottom plate 101 through the moving wheel 304. When the slope end of the probe 310 leaves the special-shaped stainless steel After the probe spring 311 rebounds, the probe 310 is reset, so that the output gear 315 is disengaged from the docking gear 309, indicating that the position here is the welding position. Then the electric cylinder 105 contracts, driving the movable seat 102 and the inner slide 104 to slide along the fixed frame 106, so that the movable seat 102 is close to the fixed seat 109, and the special-shaped stainless steel parts of the clamping mechanism on the fixed seat 109 are docked with the special-shaped stainless steel parts of the clamping mechanism on the movable seat 102. After the two special-shaped stainless steel parts are docked, the electric cylinder 105 continues to contract so that the electric cylinder spring 107 is stretched, so that the two special-shaped stainless steel parts are kept tightly together. The support spring 318 makes the support wheel 319 always contact with the special-shaped stainless steel parts. The rotation of the motor 305 drives the motor gear 306 to rotate, thereby driving the mounting frame 316 to slide along the horizontal frame 321 through the horizontal rack 307, and the special-shaped stainless steel parts are welded by the welding gun 320.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for clamping and welding special-shaped stainless steel parts, comprising a base mechanism, characterized in that: The base mechanism comprises a bottom plate (101), and two clamping mechanisms for clamping special-shaped stainless steel parts and an operating mechanism for welding the special-shaped stainless steel parts are arranged on the base mechanism, the clamping mechanism comprises a lifting frame (203), and the operating mechanism comprises a rack frame (301), and the rack frame (301) is fixedly mounted on the bottom plate (101); The base mechanism comprises a movable seat (102) and a fixed seat (109), and the lifting frames (203) of the two clamping mechanisms are slidably mounted in the movable seat (102) and the fixed seat (109) respectively; The base mechanism further comprises a fixing frame (106) fixedly mounted on the bottom plate (101); a fixing seat (109) fixedly mounted on the fixing frame (106); a cylindrical sleeve (108) fixedly mounted on the fixing seat (109); a plurality of bottom wheels (103) rotatably mounted below the movable seat (102); the bottom wheels (103) roll on the bottom plate (101); an inner slide plate (104) fixedly mounted on the movable seat (102); the inner slide plate (104) is slidably mounted on the fixing frame (106); an electric cylinder (105) fixedly mounted on the movable seat (102); an electric cylinder spring (107) fixedly mounted on the output end of the electric cylinder (105); and the other end of the electric cylinder spring (107) is fixedly mounted on the fixing seat (109).

2. The device for clamping and welding special-shaped stainless steel parts according to claim 1, characterized in that: The clamping mechanism further comprises a vertical electric cylinder (205) fixedly mounted on the lifting frame (203), a rotating block (206) fixedly mounted on the output end of the vertical electric cylinder (205), and a rotating rod (207) rotatably mounted on the rotating block (206).

3. The device for clamping and welding special-shaped stainless steel parts according to claim 2, characterized in that: The clamping mechanism further comprises three clamping modules, the clamping modules comprising a lower clamping block (212), an upper guide column (213) fixedly mounted on the lower clamping block (212), an upper clamping block (208) slidably mounted on the upper guide column (213), and a guide column spring (214) arranged between the upper guide column (213) and the upper clamping block (208).

4. The device for clamping and welding special-shaped stainless steel parts according to claim 3, characterized in that: The lower clamping block (212) of the clamping module beside the lifting frame (203) is fixedly installed with the lifting frame (203); a lifting block (210) is fixedly installed below the lower clamping block (212) of the clamping module farthest from the lifting frame (203); a moving seat (201) is slidably installed below the lifting block (210); a plurality of moving rollers (202) are rotatably installed at the bottom of the moving seat (201); and a moving member of the clamping mechanism located on one side of the fixed seat (109) is movable. The roller (202) rolls on the bottom plate (101), the movable roller (202) of the clamping mechanism located on one side of the movable seat (102) rolls on the inner slide plate (104), an inner spring (211) is provided between the lifting block (210) and the movable seat (201), and an extension column (209) is fixedly installed on the upper clamping block (208) of the clamping module farthest from the lifting frame (203), and the extension column (209) is rotatably installed with the rotating rod (207).

5. The device for clamping and welding special-shaped stainless steel parts according to claim 4, characterized in that: An intermediate spring (218) is provided between the lower clamping block (212) of the clamping module located in the middle and the lower clamping block (212) of the clamping module located on the lifting block (210).

6. The device for clamping and welding special-shaped stainless steel parts according to claim 4, characterized in that: The upper clamping block (208) of the clamping module located on the lifting block (210) is fixedly mounted with a connecting block (215), and the connecting block (215) is fixedly mounted with an inner chain (204), and the inner chain (204) passes through the clamping blocks (208) on the other two clamping modules; the upper clamping block (208) of the clamping module located in the middle is fixedly mounted with an inner connecting block (216), and the inner connecting block (216) is fixedly mounted with an outer chain (217), and the outer chain (217) passes through the upper clamping block (208) of the clamping module located on the lifting frame (203).

7. The device for clamping and welding special-shaped stainless steel parts according to claim 1, characterized in that: The operating mechanism comprises a vertical rack (302) fixedly mounted on a rack frame (301); a moving wheel (304) is rotatably mounted on the bottom plate (101); a moving block (303) is rotatably mounted on the moving wheel (304); a horizontal frame (321) is fixedly mounted on the moving block (303); a motor (305) is fixedly mounted on the horizontal frame (321); and a motor gear (306) is fixedly mounted on the motor shaft of the motor (305).

8. The device for clamping and welding special-shaped stainless steel parts according to claim 7, characterized in that: A top block (308) is fixedly mounted on the cross frame (321), a docking gear (309) is rotatably mounted on the top block (308), a probe (310) is slidably mounted on the top block (308), a slope is provided on the probe (310), a probe spring (311) is provided between the probe (310) and the top block (308), a motor seat (312) is rotatably mounted on the top block (308), a slide groove (313) is provided on the motor seat (312), the motor seat (312) and the probe (310) are rotatably mounted via the slide groove (313), a docking motor (314) is fixedly mounted on the motor seat (312), an output gear (315) is fixedly mounted on the motor shaft of the docking motor (314), and the docking gear (309) is meshed with the vertical rack (302).

9. The device for clamping and welding special-shaped stainless steel parts according to claim 8, characterized in that: A mounting frame (316) is fixedly mounted on the cross frame (321), a support frame (317) is slidably mounted on the mounting frame (316), a support spring (318) is provided between the support frame (317) and the mounting frame (316), a support wheel (319) is rotatably mounted on the support frame (317), a welding gun (320) is fixedly mounted on the support frame (317), and a cross rack (307) is fixedly mounted below the mounting frame (316), the cross rack (307) being meshed with a motor gear (306).

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