A deformation-resistant welding fixture and welding method

Abstract

This invention belongs to the field of welding fixture technology, specifically relating to a deformation-resistant welding fixture and welding method. It includes a worktable with a three-axis moving mechanism mounted on it, and a welding head mounted on the three-axis moving mechanism; a clamping assembly including an adjustment section on the bottom surface of the worktable, a clamping section on the adjustment section, and a limiting section on the clamping section; and an auxiliary assembly including a cooling box with a liquid infusion section, a purification section on the bottom surface of the worktable with an exhaust section, and a dust collection section above the worktable. This invention, by designing a welding fixture with a cooling system, effectively cools the clamping section during welding, avoiding deformation and material fatigue caused by high temperatures, ensuring clamping stability, improving welding quality, and extending the service life of the fixture.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of welding fixtures, and particularly relates to a deformation-resistant welding fixture and a welding method. BACKGROUND

[0002] In the field of welding processing, fixtures are key equipment for ensuring the positioning accuracy of workpieces and the welding quality, and their performance directly affects the welding efficiency, precision and yield. Especially when high-strength welding operations are performed on metal workpieces, a large amount of heat is generated during the welding process, and the contact part of the fixture and the workpiece is prone to thermal deformation due to local high temperature, which further leads to a decrease in clamping stability, affecting the welding quality and even causing the workpiece to be scrapped.

[0003] Traditional welding fixtures mostly adopt fixed or mechanically adjustable structures, and only have basic clamping functions, lacking effective control means for thermal effects during the welding process. For example, a welding fixture is disclosed in Chinese patent document CN117139958A, which can achieve good clamping effect, but still has problems such as thermal expansion of clamping components and material fatigue during long-time welding, affecting the service life of the fixture and the welding consistency.

[0004] In addition, a large amount of smoke and harmful gases such as metal oxide particles and nitrogen oxides are generated during the welding process. If these substances are not treated in time, they not only pose a threat to the health of operators, but also may pollute the working environment and affect subsequent processing procedures. The welding fixtures in the prior art usually lack effective smoke purification systems or rely on external independent exhaust devices, which have problems such as complex structure, inconvenience to install, low purification efficiency, etc.

[0005] At the same time, with the increasing demand for product diversity and flexible production in modern manufacturing, traditional fixtures have poor adaptability when facing welding workpieces of different shapes and sizes, often requiring replacement of different fixtures or complex adjustments, which reduces production efficiency and increases equipment cost.

[0006] Therefore, it is urgent to provide a welding fixture with anti-thermal deformation capability, integrated cooling system and high-efficiency smoke purification function, and good versatility, to meet the actual needs of high-precision and high-efficiency welding processing. SUMMARY

[0007] The purpose of the present application is to provide a deformation-resistant welding fixture and a welding method, which can improve the welding quality and the service life of the fixture, purify the smoke, enhance the adaptability and flexibility of the equipment, and improve the production efficiency and the safety of the working environment.

[0008] The technical solutions adopted by the present application are as follows:

[0009] The utility model provides a kind of deformation welding fixture, including workbench, three-axis moving mechanism is installed on the workbench, welding head is installed on the three-axis moving mechanism;

[0010] Clamping assembly, the adjusting part is provided on the bottom surface of the workbench, the clamping part is provided on the adjusting part, and the limiting part is provided on the clamping part.

[0011] Auxiliary assembly, the refrigeration box is provided on the auxiliary assembly, the infusion part is provided on the refrigeration box, the bottom surface of the workbench is provided with the purification part, the air extraction part is provided on the purification part, and the suction ash part is provided above the workbench.

[0012] The workpiece to be welded is fixed by moving the clamping part through the adjusting part, and the cooling liquid is transported into the clamping part through the infusion part. In the process of transporting the cooling liquid, the air extraction part is operated to generate negative pressure in the purification part, and the smoke generated during welding is sucked into the purification part through the suction ash part and then discharged after purification.

[0013] In a preferred embodiment, the top surface of the workbench is fixedly installed with an electric push rod, and the upper end of the electric push rod is fixedly connected with a support plate.

[0014] In a preferred embodiment, the adjusting part includes two first fixed seats, both of which are fixedly connected to the bottom surface of the workbench. Two second fixed seats are also provided beside the first fixed seats, and the second fixed seats are fixedly connected to the bottom surface of the workbench. A rotating shaft is rotatably connected to the first fixed seat through a bearing. A guide rod is fixedly connected to the second fixed seat. Two silk blocks are sleeved on the rotating shaft and are slidably connected to the guide rod. A return pipe is also connected to the silk blocks and communicates with the refrigeration box. A servo motor is fixedly installed on the first fixed seat, and the output shaft of the servo motor is fixedly connected to the central rotating shaft of the rotating shaft. A collection pipe is connected to the silk blocks and communicates with the return pipe.

[0015] In a preferred embodiment, the clamping part includes a third fixed seat fixedly connected to the silk block. A hollow rod is fixedly connected to the third fixed seat. A clamping block is rotatably connected to the hollow rod through a sealing bearing. A water outlet hole is formed in the front side of the hollow rod. A water inlet pipe communicates with one end of the hollow rod. A through hole is formed in the clamping block. Liquid storage grooves are formed at both ends of the clamping block. Water inlet holes are formed at the ends of the liquid storage grooves close to each other. A drain pipe is fixedly connected to the clamping block and communicates with the liquid storage grooves.

[0016] In a preferred embodiment, the limiting part includes a limiting hole. The limiting hole is formed in the clamping block. A fixed block is fixedly connected to the third fixed seat. A limiting column is slidably inserted into the fixed block. A spring is fixedly connected between the limiting column and the fixed block.

[0017] In a preferred embodiment, the liquid delivery part comprises a water pump, which is fixedly installed on the bottom surface of the refrigeration box, and the water pump is communicated with the refrigeration box at the water pumping end, and the water pump is communicated with the liquid delivery pipe at the water discharging end, and the upper end of the liquid delivery pipe is communicated with the water inlet pipe.

[0018] In a preferred embodiment, the purification part comprises a hollow cylinder, which is fixedly connected to the bottom surface of the workbench, and an air suction pipe is fixedly connected to the hollow cylinder, and a filter element is fixedly installed in the hollow cylinder.

[0019] In a preferred embodiment, the air suction part comprises a hollow shell, which is connected to the liquid delivery pipe, and the liquid delivery pipe is communicated with the hollow shell, and a round rod is rotatably connected to the hollow shell through a sealing bearing, and the other end of the round rod extends into the hollow cylinder and is rotatably connected to the hollow cylinder, and an impeller is fixedly installed at one end of the round rod, and a fan blade is fixedly installed at the other end of the round rod.

[0020] In a preferred embodiment, the dust suction part comprises a sliding rail, which is fixedly installed on the top surface of the workbench, and a sliding block is slidably connected to the sliding rail, and an extension rod is fixedly connected to the sliding block, and a hollow column is fixedly connected to the extension rod, and the hollow column is communicated with the air suction pipe, and a dust suction cover is fixedly installed on the hollow column, and the dust suction cover is fixedly connected to the hollow column by a supporting rod.

[0021] A welding method of a variable deformation welding clamp, comprising the following steps:

[0022] Step one: unlock the limiting part, and adjust the clamping end of the clamping part according to the shape of the workpiece to be welded, and then lock the limiting part after adjustment;

[0023] Step two: control the adjusting part to adjust the position of the clamping part, and clamp the workpiece to be welded by the plurality of clamping parts;

[0024] Step three: during the welding process, start the liquid delivery part to pump cooling liquid into the clamping part to cool the clamping part;

[0025] Step four: the cooling liquid promotes the operation of the air suction part during the flow process, at this time, the dust suction part and the purification part generate negative pressure to suck out the smoke generated during welding, and the smoke is purified by the purification part and then discharged.

[0026] The technical effects obtained by the present application are:

[0027] The welding clamp with a cooling system can effectively cool the clamping part during the welding process, avoids deformation and material fatigue problems caused by high temperature, ensures clamping stability, improves welding quality, and prolongs the service life of the clamp;

[0028] The application integrates a high-efficiency smoke purification system, through effective cooperation of the air extraction part, the purification part and the dust suction part, the smoke generated during welding can be rapidly extracted and discharged after purification treatment, the harm of harmful substances to the health of operators and the pollution to the environment are greatly reduced, and a safer and cleaner working environment is created.

[0029] The application adopts an adjustable structure design, the position of the clamping part is adjusted by rotating the rotating rod driven by the servo motor, the clamping block can be quickly switched according to the workpiece type (plate or pipe), the universality and flexibility of the equipment are greatly enhanced, the production preparation time is reduced, and the production efficiency is improved. Meanwhile, the design simplifies the equipment structure and reduces the cost. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only illustrate the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0031] Figure 1 is a structural schematic diagram of the whole application;

[0032] Figure 2 is a bottom view of the whole structure of the application;

[0033] Figure 3 is a structural schematic diagram of the clamping assembly of the application;

[0034] Figure 4 is a structural schematic diagram of the clamping part of the application;

[0035] Figure 5 is an enlarged schematic diagram of part A shown in the application Figure 4 ;

[0036] Figure 6 is a sectional view of the application Figure 4 ;

[0037] Figure 7 is a partial structural schematic diagram of the auxiliary assembly of the application;

[0038] Figure 8 is a bottom view of the application Figure 7 ;

[0039] Figure 9 is a structural schematic diagram of the internal structure of the hollow shell and the hollow cylinder of the application;

[0040] Figure 10 is a structural schematic diagram of the telescopic rod of the application.

[0041] The components represented by the reference numbers in the drawings are listed as follows:

[0042] 1, workbench; 2, three-axis moving mechanism; 3, welding head; 4, clamping assembly; 5, auxiliary assembly; 6, electric push rod; 7, support plate;

[0043] 41, adjusting part; 42, clamping part; 43, limiting part; 411, first fixing seat; 412, rotating rod; 413, second fixing seat; 414, guide rod; 415, wire block; 416, return pipe; 417, servo motor; 418, collecting pipe; 421, third fixing seat; 422, hollow rod; 423, clamping block; 424, water outlet hole; 425, water inlet pipe; 426, through hole; 427, liquid storage groove; 428, water inlet hole; 429, drain pipe; 431, limiting hole; 432, fixing block; 433, limiting column; 434, spring;

[0044] 51, refrigeration box; 52, infusion part; 53, purification part; 54, air extraction part; 55, dust suction part; 521, water pump; 522, infusion pipe; 531, hollow cylinder; 532, air extraction pipe; 533, filter; 541, hollow shell; 542, round rod; 543, impeller; 544, fan blade; 551, sliding rail; 552, sliding block; 553, telescopic rod; 554, hollow column; 555, dust extraction cover. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to specific examples.

[0046] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as their common meanings to those having ordinary skills in the art to which the present application pertains. The terms "first", "second" and similar terms used in the present application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the components or objects listed before the terms encompass the components or objects listed after the terms and their equivalents, and do not exclude other components or objects. The terms "connect" or "connected" and similar terms do not mean physical or mechanical connection, but can include electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like only represent relative positional relationships, which can change when the absolute positions of the described objects change.

[0047] Please refer to the accompanying drawings Figures 1 to 8As shown, it is the first embodiment of the application, which provides a deformation welding clamp, comprising a workbench 1, a three-axis moving mechanism 2 is installed on the workbench 1, a welding head 3 is installed on the three-axis moving mechanism 2;

[0048] A clamping assembly 4, the clamping assembly 4 comprises an adjusting part 41 arranged on the bottom surface of the workbench 1, a clamping part 42 is arranged on the adjusting part 41, and a limiting part 43 is arranged on the clamping part 42;

[0049] An auxiliary assembly 5, the auxiliary assembly 5 comprises a refrigeration box 51, a liquid conveying part 52 is arranged on the refrigeration box 51, a purification part 53 is arranged on the bottom surface of the workbench 1, an air extraction part 54 is arranged on the purification part 53, and a dust suction part 55 is arranged above the workbench 1;

[0050] The clamping part 42 is moved by the adjusting part 41 to fix the workpiece to be welded, the cooling liquid is conveyed into the clamping part 42 through the liquid conveying part 52, the air extraction part 54 is operated in the process of conveying the cooling liquid, the negative pressure is generated in the purification part 53, and the smoke generated during welding is sucked into the purification part 53 through the dust suction part 55 and then discharged after purification.

[0051] The top surface of the workbench 1 is fixedly installed with an electric push rod 6, and the upper end of the electric push rod 6 is fixedly connected with a supporting plate 7.

[0052] In this embodiment, the welding head 3 is moved by the three-axis moving mechanism 2 to perform welding; when welding the plate-shaped workpiece, the electric push rod 6 is controlled to extend and retract to drive the supporting plate 7 to ascend and descend, and the bottom surface of the plate-shaped workpiece is supported by the supporting plate 7.

[0053] The three-axis moving mechanism 2 adopts the product publicly disclosed on the market, and when selecting the type, the specification and the use scene should be suitable, and the type meeting the requirements of the application should be selected as much as possible, and the specific type and specification are not limited here.

[0054] Secondly, please refer to Figure 2 and Figure 3The adjusting part 41 comprises two first fixing bases 411, both of which are fixedly connected to the bottom surface of the workbench 1. Two second fixing bases 413 are arranged beside the first fixing bases 411 and are fixedly connected to the bottom surface of the workbench 1. A rotating rod 412 is rotatably connected to the first fixing base 411 through a bearing. A guide rod 414 is fixedly connected to the second fixing base 413. Two silk blocks 415 are sleeved on the rotating rod 412 and are slidably connected to the guide rod 414. A return flow pipe 416 is further connected to the silk blocks 415 and is in communication with the refrigeration box 51. A servo motor 417 is fixedly installed on the first fixing base 411, and the output shaft of the servo motor 417 is fixedly connected to the central rotating shaft of the rotating rod 412. A collecting pipe 418 is connected to the silk blocks 415 and is in communication with the return flow pipe 416. The return flow pipe 416 is a telescopic hose.

[0055] In this embodiment, two servo motors 417 are started at the same time to drive the rotating rod 412 to rotate. The rotation of the rotating rod 412 further drives the silk blocks 415 to move. The silk blocks 415 and the guide rod 414 form a sliding structure, which can realize the functions of limiting and guiding and ensure the stability of the movement of the silk blocks 415.

[0056] It should be noted that threads in opposite directions are arranged at both ends of the rotating rod 412, and the rotating rod 412 is threadedly connected to the silk blocks 415.

[0057] Thirdly, referring to Figures 3 to 6 The clamping part 42 comprises a third fixing base 421 fixedly connected to the silk blocks 415. A hollow rod 422 is fixedly connected to the third fixing base 421. A clamping block 423 is rotatably connected to the hollow rod 422 through a sealing bearing. A water outlet hole 424 is arranged on the front side of the hollow rod 422. A water inlet pipe 425 is connected to one end of the hollow rod 422. A through hole 426 is arranged on the clamping block 423. Liquid storage grooves 427 are arranged at both ends of the clamping block 423. Water inlet holes 428 are arranged at the ends of the liquid storage grooves 427 close to each other. A drain pipe 429 is fixedly connected to the clamping block 423 and is in communication with the liquid storage grooves 427. The water inlet pipe 425 is a telescopic hose.

[0058] In this embodiment, the movement of the silk blocks 415 causes the third fixing base 421 and the clamping block 423 thereon to move close to each other, thereby realizing the clamping of the welding pieces. In addition, the clamping block 423 can rotate on the hollow rod 422 rotatably connected to the third fixing base 421. One end of the clamping block 423 is designed as a flat surface, and the other end is designed as a V-shaped surface. The flat surface is used to clamp plate-shaped welding pieces, and the V-shaped surface is used to clamp tubular welding pieces.

[0059] It is worth noting that: the collection tube 418 is designed as a telescopic hose, and is provided with a rubber ring at the upper end, which is sleeved on the drain pipe 429 to ensure that the collection tube 418 is tightly connected with the drain pipe 429.

[0060] Secondly, please refer to Figure 4 and Figure 5 , the limiting part 43 includes a limiting hole 431, the limiting hole 431 is arranged on the clamping block 423, the third fixing seat 421 is fixedly connected with a fixing block 432, the fixing block 432 is slidingly connected with a limiting column 433, and the limiting column 433 is fixedly connected with a spring 434 between the fixing block 432.

[0061] In this embodiment, first, the collection tube 418 is pulled downward to separate from the drain pipe 429. Then, the limiting column 433 is pulled to separate from the limiting hole 431 on the clamping block 423, and at the same time, the spring 434 is stretched. At this time, the clamping block 423 is no longer limited, and the clamping block 423 can be rotated to switch the clamping end. After switching, the limiting column 433 is released, and the restoring force of the spring 434 will reset the limiting column 433 and insert it into the limiting hole 431, thereby fixing the clamping block 423. Finally, the collection tube 418 is pulled upward to reconnect with the drain pipe 429.

[0062] Please refer to Figure 8 , the infusion part 52 includes a water pump 521, the water pump 521 is fixedly installed on the bottom surface of the refrigeration box 51, the water suction end of the water pump 521 is communicated with the refrigeration box 51, the water discharge end of the water pump 521 is communicated with an infusion tube 522, and the upper end of the infusion tube 522 is communicated with the water inlet pipe 425.

[0063] In this embodiment, the water pump 521 is started to extract the cooling liquid in the refrigeration box 51, and then the cooling liquid is transported into the hollow rod 422 through the infusion tube 522 and the water inlet pipe 425. The cooling liquid is discharged through the water outlet hole 424 on the hollow rod 422, and the water inlet hole 428 on the clamping block 423 corresponds to the water outlet hole 424, so that the cooling liquid can flow into the liquid storage groove 427 on the clamping block 423 through the water outlet hole 424 and the water inlet hole 428. Finally, the cooling liquid returns to the refrigeration box 51 through the drain pipe 429 and the return pipe 416, and the cooling cycle is completed. The circulation flow path cools the clamping block 423 by circulating the cooling liquid, continuously removes the heat of the contact surface by forced convection heat transfer principle, effectively avoids material fatigue and thermal expansion deformation of the clamping block 423 caused by long-term overheating, and prevents the surface oxide layer from falling off caused by high temperature.

[0064] Since the hollow rod 422 is provided with the water outlet hole 424 only on one side, only the liquid storage groove 427 of the clamping end can receive the cooling liquid, thereby reducing the consumption of the cooling liquid.

[0065] The refrigeration box 51 is used to store and cool the cooling liquid, and uses a product currently publicly available on the market. When selecting the product, the specifications and use scenarios should be suitable, and the product that meets the requirements of the present application should be selected as much as possible. The specific model and specifications are not limited here.

[0066] Please refer again to Figures 7 to 9 The purification part 53 includes a hollow cylinder 531 fixedly connected to the bottom surface of the workbench 1. The hollow cylinder 531 is fixedly connected to an air suction pipe 532. The hollow cylinder 531 is fixedly installed with a filter 533 inside.

[0067] In this embodiment, the filter 533 is an activated carbon adsorption plate. The activated carbon adsorption plate has strong adsorption capacity and can effectively capture and fix small particles and harmful gases in the flue gas, such as metal oxides, nitrogen oxides and other harmful substances generated during the welding process. The porous structure greatly increases the contact area with the flue gas, improving the purification efficiency. In addition, the activated carbon adsorption plate also has good regeneration performance. After a certain period of use, it can be regenerated through appropriate heat treatment to restore its adsorption capacity, realizing the recycling of resources and reducing the use cost. At the same time, this design is also convenient to replace and maintain, ensuring the continuous and efficient operation of the welding fixture.

[0068] The air suction pipe 532 is a telescopic hose, which can flexibly adapt to different positions and angles of operation. When the welding head 3 is moving, the telescopic hose can freely extend and retract, thereby ensuring the effective extraction of flue gas. In addition, the telescopic hose also has good flexibility and is not easy to be damaged due to bending, prolonging the service life. This design not only improves the flexibility of welding operation, but also ensures the stability and reliability of the purification system.

[0069] Please refer again to Figures 7 to 9 The air suction part 54 includes a hollow shell 541 connected to the infusion tube 522, and the infusion tube 522 communicates with the hollow shell 541. The hollow shell 541 is rotatably connected to a round rod 542 through a sealing bearing, and the other end of the round rod 542 extends into the hollow cylinder 531 and is rotatably connected to the hollow cylinder 531. The one end of the round rod 542 is fixedly installed with an impeller 543, and the other end of the round rod 542 is fixedly installed with a fan blade 544.

[0070] Please refer again to Figure 1 and Figure 10The dust suction part 55 comprises a sliding rail 551 fixedly installed on the top surface of the workbench 1, a sliding block 552 slidingly connected to the sliding rail 551, an extension rod 553 fixedly connected to the sliding block 552, a hollow column 554 fixedly connected to the extension rod 553 and communicated with the air suction pipe 532, and a dust suction cover 555 fixedly installed on the hollow column 554 and communicated with the hollow column 554 and fixedly connected to the welding head 3 by means of a supporting rod.

[0071] In this embodiment, when the cooling liquid flows through the hollow shell 541, it effectively drives the rotation of the impeller 543. The rotation of the impeller 543 is further transmitted to the round rod 542, so that the round rod 542 also starts to rotate. The rotary motion of the round rod 542 is further transmitted to the fan blade 544, so that the fan blade 544 starts to rotate. The rotation of the fan blade 544 generates a negative pressure effect inside the hollow cylinder 531, which is transmitted along the air suction pipe 532 and the hollow column 554, and finally generates a negative pressure at the position of the dust suction cover 555. The smoke generated during the welding process can be effectively sucked in. The sucked smoke is then filtered by the filter 533 to remove harmful particles and impurities therein. The purified smoke is finally discharged from one end of the hollow cylinder 531, ensuring the cleanliness and safety of the working environment.

[0072] The welding head 3 is connected to the dust suction cover 555 by a supporting rod, so that the dust suction cover 555 can move synchronously with the welding head 3. When the welding head 3 is raised and lowered, the dust suction cover 555 is allowed to be raised and lowered by the design of the extension rod 553.

[0073] A welding method of a deformation welding clamp, comprising the following steps:

[0074] Step one: first unlock the limiting part 43, and adjust the clamping end of the clamping part 42 according to the shape of the workpiece to be welded, and then lock the limiting part 43 after adjustment;

[0075] Step two: control the adjusting part 41 to adjust the position of the clamping part 42, and clamp the workpiece to be welded by the plurality of clamping parts 42;

[0076] Step three: during the welding process, start the liquid delivery part 52 to pump the cooling liquid into the clamping part 42 to cool the clamping part 42;

[0077] Step four: the cooling liquid promotes the operation of the air suction part 54 during the flow process, at this time, the dust suction part 55 and the purification part 53 generate negative pressure to suck out the smoke generated during welding, and the smoke is discharged after purification by the purification part 53.

[0078] The working principle of the present application is:

[0079] The device drives the welding head 3 to carry out accurate welding operation through the three-axis moving mechanism 2, meanwhile, the workpiece is stably clamped through the clamping assembly 4, and the clamping part 42 is driven to move through the adjusting part 41 to adapt to the workpiece to be welded of different shapes and sizes; during the clamping process, the clamping block 423 can rotate to switch the clamping end according to the type of the workpiece (such as plate or pipe), and the positioning and fixing of the clamping block 423 are realized through the limiting part 43; during the welding process, the cooling liquid in the refrigeration box 51 is delivered to the inside of the clamping part 42 through the delivery part 52, the cooling liquid enters the liquid storage groove 427 of the clamping block 423 through the water outlet hole 424 of the hollow rod 422, forced convection heat exchange is formed, the heat generated by the clamping block 423 due to high-temperature welding is effectively taken away, and thermal deformation and material performance degradation of the clamping block 423 are prevented; when the cooling liquid returns, it returns to the refrigeration box 51 through the return pipe 416, and the circulation cooling is completed; at the same time, the impeller 543 in the air extraction part 54 is driven to rotate in the flow process of the cooling liquid, the fan blade 544 is driven to generate negative pressure in the purification part 53, the dust suction part 55 and the air extraction pipe 532 form an air flow channel, the smoke and dust generated in the welding process are sucked into the purification part 53 and subjected to efficient purification treatment through the filter element 533 (such as activated carbon adsorption plate), and after the harmful particles and gases are removed, the smoke and dust are discharged, so that the working environment is clean and the health of the operator is protected; in addition, the dust extraction cover 555 of the dust suction part 55 moves synchronously with the welding head 3 through the supporting rod, and is flexibly followed by means of the telescopic rod 553 and the sliding rail 551, so that the smoke and dust are effectively extracted in time; when the plate workpiece is welded, the electric push rod 6 can drive the supporting plate 7 to ascend and descend, and provide auxiliary support for the bottom of the workpiece, and further improve the welding stability and precision; the whole welding process realizes integrated control of reliable clamping, efficient cooling, thorough dust removal and flexible operation, and significantly improves the welding quality and safety.

[0080] It should be understood by those of ordinary skill in the art that the discussion of any of the above embodiments is merely exemplary and is not intended to suggest that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0081] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, variations, and the like are intended to be encompassed by the present application.

Claims

1. A deformation-tolerant welding fixture, characterized by: Including workbench (1), three-axis moving mechanism (2) is installed on the workbench (1), and welding head (3) is installed on the three-axis moving mechanism (2); Clamping assembly (4), the adjusting part (41) is arranged on the bottom surface of the workbench (1), the clamping part (42) is arranged on the adjusting part (41), and the limiting part (43) is arranged on the clamping part (42); Auxiliary assembly (5), the auxiliary assembly (5) includes a refrigeration box (51), the refrigeration box (51) is provided with a liquid delivery part (52), the bottom surface of the workbench (1) is provided with a purification part (53), the purification part (53) is provided with an air extraction part (54), and the top of the workbench (1) is provided with an ash suction part (55); The workpiece to be welded is fixed by moving the clamping part (42) through the adjusting part (41), the cooling liquid is delivered into the clamping part (42) through the liquid delivery part (52), the air extraction part (54) is operated in the process of delivering the cooling liquid, the negative pressure is generated in the purification part (53), and the flue gas generated during welding is sucked into the purification part (53) for purification and then discharged along the ash suction part (55); The adjusting part (41) includes two first fixed seats (411), both the first fixed seats (411) are fixedly connected to the bottom surface of the workbench (1), two second fixed seats (413) are further arranged beside the first fixed seat (411), and the second fixed seat (413) is fixedly connected to the bottom surface of the workbench (1), the first fixed seat (411) is rotatably connected with a rotating rod (412) through a bearing, the second fixed seat (413) is fixedly connected with a guide rod (414), two silk blocks (415) are sleeved on the rotating rod (412), and the silk block (415) is slidably connected with the guide rod (414), the silk block (415) is further connected with a return pipe (416), and the return pipe (416) communicates with the refrigeration box (51), the first fixed seat (411) is fixedly installed with a servo motor (417), and the output shaft of the servo motor (417) is fixedly connected with the central rotating shaft of the rotating rod (412), the silk block (415) is connected with a collecting pipe (418), and the collecting pipe (418) communicates with the return pipe (416); The clamping part (42) comprises a third fixing base (421) fixedly connected on the wire block (415), a hollow rod (422) fixedly connected on the third fixing base (421), a clamping block (423) rotatably connected on the hollow rod (422) through a sealing bearing, a water outlet hole (424) formed on the front side of the hollow rod (422), only one side of the hollow rod (422) being provided with the water outlet hole (424), so that only the liquid storage groove (427) of the clamping end can receive the cooling liquid, one end of the hollow rod (422) being communicated with a water inlet pipe (425), a through hole (426) formed on the clamping block (423), the two ends of the clamping block (423) being both provided with liquid storage grooves (427), one end of the two liquid storage grooves (427) close to each other being provided with a water inlet hole (428), and a drain pipe (429) fixedly connected on the clamping block (423) and communicated with the liquid storage grooves (427).

2. A deformation welding fixture according to claim 1, characterized in that: The top surface of the workbench (1) is fixedly provided with an electric push rod (6), and the upper end of the electric push rod (6) is fixedly connected with a supporting plate (7).

3. A strain-relief welding fixture as defined in claim 1, wherein: The limiting part (43) comprises a limiting hole (431) formed on the clamping block (423), a fixed block (432) fixedly connected on the third fixing base (421), and a limiting column (433) slidingly inserted into the fixed block (432), and the limiting column (433) and the fixed block (432) are fixedly connected with a spring (434).

4. The gage-distortion welding fixture of claim 1, wherein: The infusion part (52) comprises a water pump (521) fixedly installed on the bottom surface of the refrigeration box (51), and the water pumping end of the water pump (521) is communicated with the refrigeration box (51), and the water discharging end of the water pump (521) is communicated with an infusion pipe (522), and the upper end of the infusion pipe (522) is communicated with the water inlet pipe (425).

5. A strain-relief welding fixture according to claim 4, wherein: The purification part (53) comprises a hollow cylinder (531) fixedly connected on the bottom surface of the workbench (1), a suction pipe (532) fixedly connected on the hollow cylinder (531), and a filter (533) fixedly installed in the hollow cylinder (531).

6. A strain-relief welding fixture according to claim 5, wherein: The air suction part (54) comprises a hollow shell (541) connected on the infusion pipe (522) and communicated with the infusion pipe (522), a circular rod (542) rotatably connected on the hollow shell (541), one end of the circular rod (542) being fixedly installed with an impeller (543), and the other end of the circular rod (542) extending into the hollow cylinder (531) and rotatably connected with the hollow cylinder (531), and a fan blade (544) fixedly installed on the other end of the circular rod (542).

7. A strain-relief welding fixture as defined in claim 5, wherein: The dust suction part (55) comprises a sliding rail (551) fixedly installed on the top surface of the workbench (1), a sliding block (552) slidably connected to the sliding rail (551), a telescopic rod (553) fixedly connected to the sliding block (552), a hollow column (554) fixedly connected to the telescopic rod (553) and in communication with the air suction pipe (532), and a dust suction cover (555) fixedly installed on the hollow column (554) and in communication with the hollow column (554) and fixedly connected to the welding head (3) by means of a supporting rod.

8. A welding method using the deformation-tolerant welding fixture according to any one of claims 1 to 7, characterized by, The method comprises the following steps: Step one: unlock the limiting part (43), and adjust the clamping end of the clamping part (42) according to the shape of the workpiece to be welded, and then lock the limiting part (43); Step two: control the adjusting part (41) to adjust the position of the clamping part (42), and clamp the workpiece to be welded by the plurality of clamping parts (42); Step three: during the welding process, start the liquid delivery part (52) to pump the cooling liquid into the clamping part (42) to cool the clamping part (42); Step four: the cooling liquid flows to promote the operation of the air suction part (54), at this time, the dust suction part (55) and the purification part (53) generate negative pressure to suck out the smoke generated during welding, and then discharge the smoke after purification by the purification part (53).

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