A low-hardness metal fixture for metal welding

Abstract

The present invention discloses a low-hardness metal clamp for metal welding, which belongs to the technical field of clamps for metal welding, and includes a support base assembly, a wall thickness adaptive detection and adjustment structure, a drive clamping mechanism and a placement plate, wherein the wall thickness adaptive detection and adjustment structure is arranged on the side of the support base assembly, and the drive clamping mechanism is arranged on the support base assembly, and the wall thickness adaptive detection and adjustment structure includes a measuring assembly, a transmission assembly and an adjustment assembly. The present invention sets a wall thickness adaptive detection and adjustment structure and a drive clamping mechanism, so that the device can identify the size of the wall thickness of the pipe, and can adaptively adjust the clamping force provided to the pipe according to the wall thickness of the pipe, which can ensure that the pipe will not loosen during the welding process, and can avoid the deformation of the pipe with a smaller wall thickness caused by the excessive clamping force of the clamp, and effectively solves the problem that the clamping force provided by the clamp cannot be adaptively adjusted according to the wall thickness of the pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of metal welding fixtures, and in particular relates to a low-hardness metal fixture for metal welding. Background Art

[0002] Metal welding technology occupies an important position in industrial production, especially in the fields of automobile manufacturing, aerospace, electronic equipment, etc. Metal material welding technology is a key method to achieve metal material connection and repair. Welding technology can not only improve the overall performance and quality of the product, but also achieve energy conservation and emission reduction of metal materials, which meets the requirements of sustainable development. In the metal welding process, the fixture is a key tool to ensure the correct execution of the welding process, ensure welding accuracy, improve production efficiency and reduce production costs.

[0003] When welding pipes, since the pipes need to maintain a fixed shape and different pipes have different wall thicknesses, the clamping force provided by the existing clamps cannot be adjusted, resulting in the pipes being deformed when the clamps clamp pipes with smaller wall thicknesses, and being unable to ensure that the pipes are completely clamped when clamping pipes with larger wall thicknesses, making them prone to loosening during the welding process. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a low-hardness metal clamp for metal welding. By setting a wall thickness adaptive detection and adjustment structure and a driving clamping mechanism, the device can identify the wall thickness of the pipe and can adaptively adjust the clamping force provided to the pipe according to the wall thickness of the pipe. This can not only ensure that the pipe will not loosen during the welding process, but also avoid the deformation of the pipe with a smaller wall thickness caused by the clamping force being too large. This effectively solves the problem that the clamping force provided by the clamp cannot be adaptively adjusted according to the wall thickness of the pipe.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a low-hardness metal clamp for metal welding, comprising a supporting base assembly, a wall thickness adaptive detection and adjustment structure, a driving clamping mechanism and a placing plate, wherein the wall thickness adaptive detection and adjustment structure is arranged on the side of the supporting base assembly, the driving clamping mechanism is arranged on the supporting base assembly, the wall thickness adaptive detection and adjustment structure comprises a measuring assembly, a transmission assembly and an adjusting assembly, the driving clamping mechanism is connected to the adjusting assembly, the placing plate is arranged on the supporting base assembly, and the placing plate is connected to the adjusting assembly in the wall thickness adaptive detection and adjustment structure.

[0006] Furthermore, the measuring component in the wall thickness adaptive detection and adjustment structure includes a fixed seat, a sliding base, a reset spring, a fixed vertical plate, a driving cylinder, a measuring block, a driving rack, a driven gear, a support shaft and a placement bracket 1. The fixed seat is fixedly connected to the support base component, a sliding groove is provided on the fixed seat, a sliding groove is provided on the support base component, the sliding base is slidably connected to the sliding groove, the sliding base is slidably connected to the support base component, a reset spring is provided between the sliding base and the fixed seat, and a reset spring is also provided between the sliding base and the support base component, the fixed vertical plate is fixedly connected to the sliding base, the driving cylinder is fixedly connected to the fixed vertical plate, a through groove is provided on the fixed vertical plate, the measuring block is slidably connected in the through groove, the measuring block is fixedly connected to the output end of the driving cylinder, the driving rack is fixedly connected to the measuring block, the driven gear is meshed and connected to the driving rack, the support shaft passes through and is fixedly connected to the driven gear, the placement bracket 1 is fixedly connected to the fixed vertical plate, and the support shaft is rotatably connected to the placement bracket 1, so that the device can complete the measurement of the wall thickness of the pipe.

[0007] Furthermore, the transmission assembly includes a driven shaft, a second placement bracket, a driving bevel gear, a slave bevel gear, a driving shaft, a fixed key, a driven rotating cylinder, a telescopic spring, a driving bevel gear and a connecting bracket, the driven shaft is arranged on the side of the sliding base, the second placement bracket is fixedly connected to the fixed vertical plate, the driven shaft is rotatably connected to the second placement bracket, the driving bevel gear is fixedly connected to the driven shaft, the slave bevel gear is meshed and connected to the driving bevel gear, the driving shaft is fixedly connected to the slave bevel gear, the fixed key is fixedly connected to the driving shaft, a docking groove is provided on the driven rotating cylinder, a spline groove is provided on the inner surface of the docking groove, the fixed key is slidably connected in the spline groove, one end of the telescopic spring is fixedly connected to the driving shaft, the other end of the telescopic spring is fixedly connected to the driven rotating cylinder, the driving bevel gear is fixedly connected to the driven rotating cylinder, the connecting bracket is fixedly connected to the fixed seat, the driven rotating cylinder passes through and is rotatably connected to the connecting bracket, and the adjusting assembly can be driven by the transmission assembly to adjust the wall thickness of the pipe.

[0008] Furthermore, the adjusting component includes a driven bevel gear, a connecting shaft, a driving gear, a passive gear, a sleeve, a driving block, a lifting top block, a driving motor, a driving shaft, a driving key and an extrusion block, the driven bevel gear is meshed and connected to the driving bevel gear, the connecting shaft is fixedly connected to the driven bevel gear, the driving gear is fixedly connected to the connecting shaft, the passive gear is meshed and connected to the driving gear, the sleeve is fixedly connected to the passive gear, the driving block is fixedly connected to the sleeve, the lifting top block is slidably connected to the docking groove, the inner surface of the lifting top block is provided with a docking inclined groove, the driving block is slidably connected in the docking inclined groove, the driving motor is fixedly connected to the supporting base component, the driving shaft is fixedly connected to the output end of the driving motor, the driving key is fixedly connected to the driving shaft, the extrusion block is slidably connected to the driving shaft, and the extrusion block is slidably connected to the driving key, so that the adjusting component can change the friction between the extrusion block and the driven rotating shaft according to the wall thickness of the pipe.

[0009] Furthermore, the lifting top block is slidably connected to the support base assembly, and the lifting top block forms an up-and-down moving structure under the joint action of the driving block and the docking inclined groove.

[0010] Furthermore, the inner diameter of the lifting top block is the same as the inner diameter of the extrusion block, and the wall thickness of the extrusion block is smaller than the wall thickness of the lifting top block.

[0011] Further, the passive gear is rotationally connected to the placement plate, the active shaft penetrates through and is rotationally connected to the placement plate, and the active shaft penetrates through and is rotationally connected to the sleeve.

[0012] Furthermore, the driving clamping mechanism includes a fixed bracket, a driven rotating shaft, a rotating shaft, an active bevel gear, a passive bevel gear, a worm, a worm wheel, a driven shaft, a rotating gear, a driven rack, a clamping plate and a support plate, the fixed bracket is fixedly connected to the support base assembly, the driven rotating shaft is rotatably connected to the fixed bracket, the rotating shaft penetrates and is rotatably connected to the fixed bracket, the active bevel gear is fixedly connected to the rotating shaft, the passive bevel gear is meshedly connected to the active bevel gear, the worm is fixedly connected to the passive bevel gear, the worm is rotatably connected to the support base assembly, the worm wheel is meshedly connected to the worm, the driven shaft penetrates and is fixedly connected to the worm wheel, the rotating gear is fixedly connected to the driven shaft, the driven rack is meshedly connected to the rotating gear, the clamping plate is fixedly connected to the driven rack, the support plate is fixedly connected to the support base assembly, the driven shaft penetrates and is rotatably connected to the support plate, so that the device can adaptively adjust the clamping force according to the wall thickness of the pipe.

[0013] Furthermore, the support base assembly includes a mounting base, a fastening bolt, a support frame, a mounting frame and a locking nut, the fastening bolt is threadedly connected to the mounting base, the support frame is fixedly connected to the mounting base, the bottom of the mounting frame passes through and is rotatably connected to the support frame, the locking nut is threadedly connected to the mounting frame, and a lifting slot is provided on the mounting frame.

[0014] Furthermore, the upper surface of the extrusion block is always in contact with the bottom surface of the driven rotating shaft, and the clamping plate is slidably connected in the lifting slide groove.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] In order to solve the problem that the clamping force provided by the clamp cannot be adaptively adjusted according to the wall thickness of the pipe, the present invention sets a wall thickness adaptive detection and adjustment structure and a driving clamping mechanism, so that the device can identify the size of the pipe wall thickness and can adaptively adjust the clamping force provided to the pipe according to the wall thickness of the pipe, which can ensure that the pipe will not loosen during the welding process and avoid deformation of the pipe with a smaller wall thickness caused by excessive clamping force of the clamp;

[0017] The sliding base included in the wall thickness adaptive detection and adjustment structure can be adjusted in position, so that the device can measure the wall thickness of the end of the pipe that does not need to be welded, avoiding the structure used for measurement affecting the welding of the pipe;

[0018] In addition, the driving shaft in the wall thickness adaptive detection and adjustment structure can be displaced along the docking groove on the driven rotating cylinder under the action of the telescopic spring, so that the driven bevel gear can always be meshed and connected with the driving bevel gear, so that the length of the pipe will not affect the normal operation of the wall thickness adaptive detection and adjustment structure, and the friction between the extrusion block and the driven rotating shaft is adjusted by the position of the measuring block, thereby adjusting the clamping force provided by the device;

[0019] The wall thickness adaptive detection and adjustment structure and the driving clamping mechanism are driven by a worm gear. The self-locking effect of the worm gear can prevent the vibration caused by adverse factors during pipe welding from causing the clamping plate to move autonomously, thus ensuring the stability of the device in clamping the pipe.

[0020] The angle of the mounting frame can be adjusted on the support frame, and the angle of the mounting frame can be fixed under the action of the locking nut, so that the device can assist the pipe to complete horizontal butt welding and assist the pipe to complete welding at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a low-hardness metal fixture for metal welding proposed by the present invention Figure 1 ;

[0022] Figure 2 A schematic diagram of the three-dimensional structure of a low-hardness metal fixture for metal welding proposed by the present invention Figure 2 ;

[0023] Figure 3A three-dimensional schematic diagram of a low-hardness metal fixture for metal welding proposed by the present invention Figure 3 ;

[0024] Figure 4 This is an exploded stereoscopic schematic diagram of a low-hardness metal clamp for metal welding proposed by the present invention;

[0025] Figure 5 It is an exploded three-dimensional schematic diagram of the sliding base and the fixed base;

[0026] Figure 6 for Figure 1 A magnified view of the structure at center A;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the wall thickness adaptive detection and adjustment structure;

[0028] Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the driving shaft and the driven drum;

[0029] Fig. 9 A partially exploded three-dimensional structural schematic diagram of a wall thickness adaptive detection and adjustment structure;

[0030] Fig.10 It is a schematic diagram of the cross-sectional structure of the lifting top block;

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the driving clamping mechanism.

[0032] Among them, 1. Support base assembly; 101. Mounting base; 102. Fastening bolts; 103. Support frame; 104. Mounting frame; 105. Locking nut; 106. Lifting slide; 2. Wall thickness adaptive detection and adjustment structure; 201. Fixed seat; 202. Sliding groove; 203. Sliding base; 204. Reset spring; 205. Fixed vertical plate; 206. Driving cylinder; 207. Through groove; 208. Measuring block; 209. Driving rack; 210. Driven gear; 211. Support shaft; 212. Driven shaft; 213. Placement bracket one; 214. Placement bracket two; 215. Driving bevel gear; 216. From bevel gear; 217. Driving shaft; 218. Fixed key; 219. Driven drum; 220. Docking groove; 22 1. Spline groove; 222. Telescopic spring; 223. Driving bevel gear; 224. Connecting bracket; 225. Driven bevel gear; 226. Connecting shaft; 227. Driving gear; 228. Passive gear; 229. Sleeve; 230. Driving block; 231. Lifting top block; 232. Docking bevel groove; 233. Driving motor; 234. Driving shaft; 235. Driving key; 236. Extrusion block; 3. Driving clamping mechanism; 301. Fixed bracket; 302. Driven rotating shaft; 303. Rotating shaft; 304. Driving bevel gear; 305. Passive bevel gear; 306. Worm; 307. Worm wheel; 308. Follower shaft; 309. Rotating gear; 310. Driven rack; 311. Clamping plate; 312. Support plate; 4. Placement plate.

[0033] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0036] like Figure 1-Figure 11As shown, the present invention proposes a low-hardness metal clamp for metal welding, including a supporting base assembly 1, a wall thickness adaptive detection and adjustment structure 2, a driving clamping mechanism 3 and a placing plate 4, the wall thickness adaptive detection and adjustment structure 2 is arranged on the side of the supporting base assembly 1, the driving clamping mechanism 3 is arranged on the supporting base assembly 1, the wall thickness adaptive detection and adjustment structure 2 includes a measuring assembly, a transmission assembly and an adjustment assembly, the driving clamping mechanism 3 is connected to the adjustment assembly, the placing plate 4 is arranged on the supporting base assembly 1, and the placing plate 4 is connected to the adjustment assembly in the wall thickness adaptive detection and adjustment structure 2.

[0037] Among them, the measuring components in the wall thickness adaptive detection and adjustment structure 2 include a fixed seat 201, a sliding base 203, a reset spring 204, a fixed vertical plate 205, a driving cylinder 206, a measuring block 208, a driving rack 209, a driven gear 210, a support shaft 211 and a placement bracket 213. The fixed seat 201 is fixedly connected to the support base component 1, a sliding groove 202 is provided on the fixed seat 201, a sliding groove 202 is provided on the support base component 1, the sliding base 203 is slidably connected to the sliding groove 202, and the sliding base 203 is slidably connected to the support base component 1, so that the position of the sliding base 203 can be adjusted, a reset spring 204 is provided between the sliding base 203 and the fixed seat 201, and the sliding base 203 is connected to the support A reset spring 204 is also provided between the base components 1. The sliding base 203 is automatically reset to the initial state by the reset spring 204 after welding is completed. The fixed vertical plate 205 is fixedly connected to the sliding base 203. The driving cylinder 206 is fixedly connected to the fixed vertical plate 205. A through groove 207 is provided on the fixed vertical plate 205. The measuring block 208 is slidably connected in the through groove 207. The measuring block 208 is fixedly connected to the output end of the driving cylinder 206. The driving rack 209 is fixedly connected to the measuring block 208. The driven gear 210 is meshedly connected to the driving rack 209. The support shaft 211 passes through and is fixedly connected to the driven gear 210. The placement bracket 213 is fixedly connected to the fixed vertical plate 205. The support shaft 211 is rotatably connected to the placement bracket 213.

[0038] The transmission assembly includes a driven shaft 212, a placement bracket 214, a driving bevel gear 215, a slave bevel gear 216, a driving shaft 217, a fixed key 218, a driven rotating cylinder 219, a telescopic spring 222, a driving bevel gear 223 and a connecting bracket 224. The driven shaft 212 is arranged on the side of the sliding base 203, the placement bracket 214 is fixedly connected to the fixed vertical plate 205, the driven shaft 212 is rotatably connected to the placement bracket 214, the driving bevel gear 215 is fixedly connected to the driven shaft 212, the slave bevel gear 216 is meshed and connected to the driving bevel gear 215, the driving shaft 217 is fixedly connected to the slave bevel gear 216, and the fixed key 218 is fixedly connected to the driving bevel gear 213. The driving shaft 217 and the driven rotating cylinder 219 are provided with a docking groove 220, and the inner surface of the docking groove 220 is provided with a spline groove 221. The fixed key 218 is slidably connected in the spline groove 221, so that the driving shaft 217 can drive the driven rotating cylinder 219 to rotate. One end of the telescopic spring 222 is fixedly connected to the driving shaft 217, and the other end of the telescopic spring 222 is fixedly connected to the driven rotating cylinder 219, so that the slave bevel gear 216 can always be meshed and connected with the driving bevel gear 215. The driving bevel gear 223 is fixedly connected to the driven rotating cylinder 219, and the connecting bracket 224 is fixedly connected to the fixing seat 201. The driven rotating cylinder 219 passes through and is rotatably connected to the connecting bracket 224.

[0039] The adjusting assembly includes a driven bevel gear 225, a connecting shaft 226, a driving gear 227, a driven gear 228, a sleeve 229, a driving block 230, a lifting top block 231, a driving motor 233, a driving shaft 234, a driving key 235 and an extrusion block 236. The driven bevel gear 225 is meshed and connected to the driving bevel gear 223, the connecting shaft 226 is fixedly connected to the driven bevel gear 225, the driving gear 227 is fixedly connected to the connecting shaft 226, the driven gear 228 is meshed and connected to the driving gear 227, and the sleeve 229 is fixedly connected to the driving shaft 226. The passive gear 228 and the driving block 230 are fixedly connected to the sleeve 229, the lifting top block 231 is slidably connected to the docking groove 220, and the inner surface of the lifting top block 231 is provided with a docking inclined groove 232. The driving block 230 is slidably connected in the docking inclined groove 232. The driving motor 233 is fixedly connected to the support base assembly 1, the driving shaft 234 is fixedly connected to the output end of the driving motor 233, the driving key 235 is fixedly connected to the driving shaft 234, the extrusion block 236 is slidably connected to the driving shaft 234, and the extrusion block 236 is slidably connected to the driving key 235.

[0040] The lifting top block 231 is slidably connected to the support base assembly 1 so that the lifting top block 231 does not rotate. The lifting top block 231 forms an up and down moving structure under the joint action of the driving block 230 and the docking inclined groove 232 .

[0041] In addition, the inner diameter of the lifting top block 231 is the same as the inner diameter of the extrusion block 236, and the wall thickness of the extrusion block 236 is smaller than the wall thickness of the lifting top block 231, so that the lifting top block 231 can drive the extrusion block 236, and a rubber pad is provided at the top of the extrusion block 236.

[0042] In addition, the passive gear 228 is rotatably connected to the placement plate 4 , the active shaft 234 penetrates through and is rotatably connected to the placement plate 4 , and the active shaft 234 penetrates through and is rotatably connected to the sleeve 229 .

[0043] The driving clamping mechanism 3 includes a fixed bracket 301, a driven rotating shaft 302, a rotating shaft 303, an active bevel gear 304, a passive bevel gear 305, a worm 306, a worm wheel 307, a driven shaft 308, a rotating gear 309, a driven rack 310, a clamping plate 311 and a supporting plate 312. The fixed bracket 301 is fixedly connected to the supporting base assembly 1, the driven rotating shaft 302 is rotatably connected to the fixed bracket 301, the rotating shaft 303 penetrates and is rotatably connected to the fixed bracket 301, the active bevel gear 304 is fixedly connected to the rotating shaft 303, and the passive bevel gear 307 is driven by the driven rack 310. The bevel gear 305 is meshedly connected to the active bevel gear 304, the worm 306 is fixedly connected to the passive bevel gear 305, the worm 306 is rotatably connected to the support base assembly 1, the worm wheel 307 is meshedly connected to the worm 306, the follower shaft 308 penetrates and is fixedly connected to the worm wheel 307, the rotating gear 309 is fixedly connected to the follower shaft 308, the driven rack 310 is meshedly connected to the rotating gear 309, the clamping plate 311 is fixedly connected to the driven rack 310, the support plate 312 is fixedly connected to the support base assembly 1, and the follower shaft 308 penetrates and is rotatably connected to the support plate 312.

[0044] Among them, the support base assembly 1 includes a mounting base 101, a fastening bolt 102, a support frame 103, a mounting frame 104 and a locking nut 105. The fastening bolt 102 is threadedly connected to the mounting base 101, the support frame 103 is fixedly connected to the mounting base 101, the bottom of the mounting frame 104 passes through and is rotatably connected to the support frame 103, the locking nut 105 is threadedly connected to the mounting frame 104, and a lifting slide groove 106 is opened on the mounting frame 104.

[0045] The upper surface of the extrusion block 236 is always in contact with the bottom surface of the driven rotating shaft 302 , the clamping plate 311 is slidably connected in the lifting slide slot 106 , and the mounting frame 104 and the clamping plate 311 can be made of aluminum alloy.

[0046] During specific use, when two pipes need to be horizontally butt-welded, the user manually pulls the sliding base 203 to move the sliding base 203 away from the mounting frame 104, then places the pipe to be welded on the mounting frame 104, so that the ends of the pipes to be welded are butt-jointed, and the sliding base 203 is moved to the end of the pipe that does not need to be welded, so that the inner surface of the sliding base 203 fits with the end face of the pipe, and the position of the driving shaft 217 is displaced along the spline groove 221 under the action of the telescopic spring 222, so that the slave bevel gear 216 is always meshed and connected with the driving bevel gear 215, and the driving cylinder 206 set at the top of the fixed vertical plate 205 is started, and the driving cylinder 206 drives the measuring block 208 to move downward along the through groove 207 During the downward displacement of the measuring block 208, the measuring block 208 drives the driven gear 210 to rotate through the driving rack 209 until the bottom surface of the measuring block 208 contacts the inner surface of the pipe. The driven gear 210 drives the support shaft 211 to rotate while rotating. The support shaft 211 transmits power to the driven shaft 212 through the belt and the pulley, so that the driven shaft 212 rotates synchronously with the support shaft 211 in the same direction. The driven shaft 212 drives the driving bevel gear 215 to rotate, and the driving bevel gear 215 drives the slave bevel gear 216 to rotate. The slave bevel gear 216 drives the driven rotating drum 219 to rotate through the fixed key 218 and the spline groove 221, and the driven rotating drum 219 drives the driving bevel gear 223 to rotate.

[0047] The driving bevel gear 223 rotates to drive the driven bevel gear 225 to rotate, and the driven bevel gear 225 drives the driving gear 227 to rotate through the connecting shaft 226, and the driving gear 227 drives the driven gear 228 to rotate, and the driven gear 228 drives the sleeve 229 to rotate synchronously, and the sleeve 229 rotates to drive the driving block 230 to rotate, so that the driving block 230 drives the lifting top block 231 to move through the docking inclined groove 232, and the lifting top block 231 drives the extrusion block 236 to move along the driving key 235 and the driving shaft 234, so as to realize the size of the extrusion force between the extrusion block 236 and the driven rotating shaft 302. When the wall thickness of the pipe is large, the downward displacement of the measuring block 208 is small, and the friction between the extrusion block 236 and the driven rotating shaft 302 increases. When the wall thickness of the pipe is small, the downward displacement of the measuring block 208 is large, and the friction between the extrusion block 236 and the driven rotating shaft 302 decreases.

[0048] After the adjustment is completed, the drive motor 233 is started, and the drive motor 233 drives the driving shaft 234 to rotate. The driving shaft 234 drives the extrusion block 236 to rotate through the drive key 235. The extrusion block 236 transmits power to the driven rotating shaft 302 through friction, and drives the driven rotating shaft 302 to rotate. The driven rotating shaft 302 transmits power to the rotating shaft 303 through the belt and the pulley and drives the rotating shaft 303 to rotate. The rotating shaft 303 drives the active bevel gear 304 to rotate, and the active bevel gear 304 drives the passive bevel gear 305 to rotate, the passive bevel gear 305 drives the worm 306 to rotate, the worm 306 drives the worm wheel 307 to rotate, the worm wheel 307 drives the follower shaft 308 to rotate, the follower shaft 308 drives the rotating gear 309 to rotate, the rotating gear 309 drives the driven rack 310 to move, the driven rack 310 drives the clamping plate 311 to move downward along the mounting frame 104 until the clamping plate 311 fixes the pipe on the mounting frame 104, and finally completes the welding between the pipes.

[0049] When the welding of the pipe is not horizontal, the user can manually rotate and remove the locking nut 105 connected between the mounting frame 104 and the support frame 103, so that the mounting frame 104 can rotate on the support frame 103. After adjusting the angle of the mounting frame 104 as needed, the locking nut 105 is used to re-fix the angle of the mounting frame 104, and then the pipe is clamped according to the above operation to complete the welding of the pipe. The above is the overall workflow of the present invention. Just repeat this step when using it next time. The actual operation process is very simple and easy.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0052] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A low-hardness metal fixture for metal welding, characterized in that: The invention comprises a support base assembly (1), a wall thickness self-adaptive detection and adjustment structure (2), a driving clamping mechanism (3) and a placement plate (4), wherein the wall thickness self-adaptive detection and adjustment structure (2) is arranged on the side of the support base assembly (1), the driving clamping mechanism (3) is arranged on the support base assembly (1), the wall thickness self-adaptive detection and adjustment structure (2) comprises a measuring assembly, a transmission assembly and an adjustment assembly, the driving clamping mechanism (3) is connected to the adjustment assembly, the placement plate (4) is arranged on the support base assembly (1), and the placement plate (4) is connected to the adjustment assembly in the wall thickness self-adaptive detection and adjustment structure (2); The measuring assembly in the wall thickness adaptive detection and adjustment structure (2) comprises a fixed seat (201), a sliding seat (203), a reset spring (204), a fixed vertical plate (205), a driving cylinder (206), a measuring block (208), a driving rack (209), a driven gear (210), a support shaft (211) and a placement bracket (213); the fixed seat (201) is fixedly connected to the support base assembly (1); a sliding groove (202) is provided on the fixed seat (201); a sliding groove (202) is provided on the support base assembly (1); the sliding seat (203) is slidably connected to the sliding groove (202); the sliding seat (203) is slidably connected to the support base assembly (1); a reset spring (204) is provided between the sliding base (203) and the fixed seat (201); the sliding base ( A return spring (204) is also provided between the sliding base (203) and the support base assembly (1); the fixed vertical plate (205) is fixedly connected to the sliding base (203); the driving cylinder (206) is fixedly connected to the fixed vertical plate (205); a through slot (207) is provided on the fixed vertical plate (205); the measuring block (208) is slidably connected in the through slot (207); the measuring block (208) is fixedly connected to the output end of the driving cylinder (206); the driving rack (209) is fixedly connected to the measuring block (208); the driven gear (210) is meshedly connected to the driving rack (209); the supporting shaft (211) passes through and is fixedly connected to the driven gear (210); the placing bracket one (213) is fixedly connected to the fixed vertical plate (205); and the supporting shaft (211) is rotatably connected to the placing bracket one (213); The transmission assembly comprises a driven shaft (212), a second placement bracket (214), a driving bevel gear (215), a secondary bevel gear (216), a driving shaft (217), a fixed key (218), a driven rotating cylinder (219), a telescopic spring (222), a driving bevel gear (223) and a connecting bracket (224); the driven shaft (212) is arranged on a side of the sliding base (203); the second placement bracket (214) is fixedly connected to the fixed vertical plate (205); the driven shaft (212) is rotatably connected to the second placement bracket (214); the driving bevel gear (215) is fixedly connected to the driven shaft (212); the secondary bevel gear (216) is meshingly connected to the driving bevel gear (215); the driving shaft (217) The driven rotating cylinder (219) is fixedly connected to the bevel gear (216); the fixed key (218) is fixedly connected to the driving shaft (217); a docking groove (220) is provided on the driven rotating cylinder (219); a spline groove (221) is provided on the inner surface of the docking groove (220); the fixed key (218) is slidably connected in the spline groove (221); one end of the telescopic spring (222) is fixedly connected to the driving shaft (217); the other end of the telescopic spring (222) is fixedly connected to the driven rotating cylinder (219); the driving bevel gear (223) is fixedly connected to the driven rotating cylinder (219); the connecting bracket (224) is fixedly connected to the fixing seat (201); and the driven rotating cylinder (219) passes through and is rotatably connected to the connecting bracket (224); The adjustment assembly comprises a driven bevel gear (225), a connecting shaft (226), a driving gear (227), a driven gear (228), a sleeve (229), a driving block (230), a lifting block (231), a driving motor (233), a driving shaft (234), a driving key (235) and an extrusion block (236); the driven bevel gear (225) is meshedly connected to the driving bevel gear (223); the connecting shaft (226) is fixedly connected to the driven bevel gear (225); the driving gear (227) is fixedly connected to the connecting shaft (226); the driven gear (228) is meshedly connected to the driving gear (227); and the sleeve (229) is fixedly connected to the driven gear (231). The lifting block (231) is slidably connected to the docking groove (220); the inner surface of the lifting block (231) is provided with a docking inclined groove (232); the driving block (230) is slidably connected to the docking inclined groove (232); the driving motor (233) is fixedly connected to the support base assembly (1); the driving shaft (234) is fixedly connected to the output end of the driving motor (233); the driving key (235) is fixedly connected to the driving shaft (234); the extrusion block (236) is slidably connected to the driving shaft (234); and the extrusion block (236) is slidably connected to the driving key (235); The lifting top block (231) is slidably connected to the supporting base assembly (1), and the lifting top block (231) forms an up-and-down moving structure under the joint action of the driving block (230) and the docking inclined groove (232); The inner diameter of the lifting top block (231) is the same as the inner diameter of the extrusion block (236), and the wall thickness of the extrusion block (236) is smaller than the wall thickness of the lifting top block (231); The passive gear (228) is rotatably connected to the placement plate (4), the active shaft (234) penetrates and is rotatably connected to the placement plate (4), and the active shaft (234) penetrates and is rotatably connected to the placement plate (4), and the active shaft (234) penetrates and is rotatably connected to the connection sleeve (229); The driving clamping mechanism (3) comprises a fixed bracket (301), a driven rotating shaft (302), a rotating shaft (303), a driving bevel gear (304), a driven bevel gear (305), a worm (306), a worm wheel (307), a driven shaft (308), a rotating gear (309), a driven rack (310), a clamping plate (311) and a supporting plate (312), wherein the fixed bracket (301) is fixedly connected to the supporting base assembly (1), the driven rotating shaft (302) is rotationally connected to the fixed bracket (301), the rotating shaft (303) passes through and is rotationally connected to the fixed bracket (301), the driving bevel gear (304) is fixedly connected to the rotating shaft (303), and the driven bevel gear (305) is fixedly connected to the rotating shaft (303). The wheel (305) is meshedly connected to the active bevel gear (304), the worm (306) is fixedly connected to the passive bevel gear (305), the worm (306) is rotatably connected to the support base assembly (1), the worm wheel (307) is meshedly connected to the worm (306), the follower shaft (308) passes through and is fixedly connected to the worm wheel (307), the rotating gear (309) is fixedly connected to the follower shaft (308), the driven rack (310) is meshedly connected to the rotating gear (309), the clamping plate (311) is fixedly connected to the driven rack (310), the support plate (312) is fixedly connected to the support base assembly (1), and the follower shaft (308) passes through and is rotatably connected to the support plate (312).

2. A low-hardness metal fixture for metal welding according to claim 1, characterized in that: The support base assembly (1) comprises a mounting base (101), a fastening bolt (102), a support frame (103), a mounting frame (104) and a locking nut (105); the fastening bolt (102) is threadedly connected to the mounting base (101); the support frame (103) is fixedly connected to the mounting base (101); the bottom of the mounting frame (104) passes through and is rotatably connected to the support frame (103); the locking nut (105) is threadedly connected to the mounting frame (104); and a lifting slot (106) is provided on the mounting frame (104).

3. A low-hardness metal fixture for metal welding according to claim 2, characterized in that: The upper surface of the extrusion block (236) is always in contact with the bottom surface of the driven rotating shaft (302), and the clamping plate (311) is slidably connected in the lifting slide groove (106).

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