A welding clamping structure

Abstract

The present invention discloses a welding clamping structure, which belongs to the field of welding technology, and comprises a base, a plurality of supporting legs are fixedly provided at the four corners of the top of the base, a processing plate is fixedly provided on the top of the plurality of supporting legs, a clamping mechanism for clamping objects of different specifications is provided on the processing plate, the clamping mechanism comprises a lateral adjustment component and a vertical adjustment component, the lateral adjustment component comprises a first plate body, a second plate body, a first motor, a first screw rod, a first slide rod, a moving block and a sliding block, the first plate body and the second plate body are respectively fixedly provided on the two side walls of the processing plate, the first screw rod is rotatably provided between the inner walls of the first plate body through a bearing, the first motor is fixedly provided on one side of the first plate body and the output end is fixedly provided with the first screw rod. The present invention fixes the two ends of the overlong material by providing a positioning and lifting mechanism, so as to avoid the material from shaking due to the excessive length of the two ends during the welding process, thereby affecting the welding effect.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a welding clamping structure. Background Art

[0002] There are many types of welding machines, including single-point single-function, single-point dual-function, single-point multi-function, two-point, three-point, four-point and even six-point welding machines and four-corner welding machines. Different types of welding machines have different welding functions and work efficiency. Welding is the process of connecting metal parts using various fusible alloys. The melting point of solder is lower than that of the material being welded, so that the parts will not be melted, and the molecular contact will occur on their surface to complete the welding. Welding can be divided into soft welding and hard welding. The welding process can ensure the continuity of the metal. Welding machines are mainly divided into two types according to materials: plastic welding machines and metal welding machines. The technologies used mainly include ultrasonic, high frequency, plasma, electric heating, rotary, etc.

[0003] During the welding process, the welding material can only be simply clamped on both sides. When the material is too long or irregular, the material cannot be effectively clamped, resulting in the problem of poor welding effect due to inadequate clamping during the welding process. Summary of the invention

[0004] The purpose of the present invention is to provide a welding clamping structure to solve the problem that materials cannot be clamped effectively.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] A welding clamping structure according to the present invention comprises a base, a plurality of supporting legs are fixedly provided at the four corners of the top of the base, a processing plate is fixedly provided on the top of the plurality of supporting legs, a clamping mechanism for clamping objects of different specifications is provided on the processing plate, the clamping mechanism comprises a lateral adjustment component and a vertical adjustment component, the lateral adjustment component comprises a first plate body, a second plate body, a first motor, a first screw, a first sliding rod, a moving block and a sliding block, the first plate body and the second plate body are respectively fixedly provided on the two side walls of the processing plate, the first screw is rotatably provided between the inner wall of the first plate body through a bearing, the first motor is fixedly provided on one side of the first plate body and the output end is connected to the first plate body The first screw is fixedly arranged, the first sliding rod is fixedly arranged between the inner wall of the second plate body, the moving block is threadedly arranged with the first screw, the sliding block is slidably arranged with the first sliding rod, the vertical adjustment component includes a second motor, a second screw and a clamping plate, the second motor is fixedly arranged with a side wall of the sliding block, one end of the second screw is rotatably arranged with a side wall of the moving block through a bearing and the other end is fixedly arranged with the output end of the second motor, the second screw is symmetrically provided with protrusions and the protrusions extend out of the processing plate, and the processing plate is provided with a slide groove for the protrusions to slide, the clamping plate is fixedly arranged with the top of the protrusion, and both side walls of the processing plate are fixedly provided with a The positioning lifting mechanism comprises a lifting assembly and a positioning assembly, the lifting assembly comprises a fixed rod and a lifting plate, the fixed rod is fixedly arranged at the central axis of one side wall of the processing plate, the lifting plate is fixedly arranged with the fixed rod, and the upper surface of the lifting plate is flush with the upper surface of the processing plate, the positioning assembly comprises a first multi-stage electric telescopic rod, a first bent pipe, a second multi-stage electric telescopic rod, a second bent pipe, a third multi-stage electric telescopic rod, a third motor and a positioning member, the first multi-stage electric telescopic rod is fixedly arranged on the fixed rod, one end of the first bent pipe is fixedly arranged with the output end of the first multi-stage electric telescopic rod, and the other end of the first bent pipe is fixedly arranged with the output end of the second multi-stage electric telescopic rod. The telescopic rod is fixedly arranged, the output end of the second multi-stage electric telescopic rod is fixedly arranged with one end of the second bent pipe, the other end of the second bent pipe is fixedly arranged with the third multi-stage electric telescopic rod, the output end of the third multi-stage electric telescopic rod is fixedly arranged with the third motor, the output end of the third motor is fixedly arranged with the positioning member, the positioning member includes a center rod, a fourth multi-stage electric telescopic rod and a butt joint, the center rod is fixedly arranged with the output end of the third motor, a plurality of the fourth multi-stage electric telescopic rods are evenly arranged along the circumferential direction of the center rod, the output end of the fourth multi-stage electric telescopic rod is fixedly arranged with the butt joint, and the processing plate is also provided with a fixing mechanism for fixing both sides of the welding position.

[0007] Preferably, the fixing mechanism includes a position adjustment component and a fixed protection component, the adjustment component includes a reciprocating screw slide, a fourth motor, a fifth motor and an electric push rod, the reciprocating screw slide is fixedly arranged on a side wall of the base, the fourth motor is fixedly arranged on one side of the reciprocating screw slide and the output end is fixedly arranged with the screw, the fifth motor is slidably arranged on the reciprocating screw slide, the electric push rod is fixedly arranged with the output end of the fifth motor, and the output end of the electric push rod is fixedly provided with an L-shaped bend pipe.

[0008] Preferably, the fixed protective assembly includes a fixed plate, a first clamping plate, a second clamping plate, a first protective visible plate, a second protective visible plate and a gear component, the fixed plate is fixed to the L-shaped elbow, the first clamping plate is provided with two and is fixed to a side wall of the fixed plate, the second clamping plate is slidably arranged inside the first clamping plate, the first protective visible plate is fixed to a side wall of the fixed plate, the second protective visible plate is slidably arranged inside the first protective visible plate, and the gear component is arranged inside the fixed plate.

[0009] Preferably, the gear parts include a first gear, a second gear, a third gear, a fourth gear, a fifth gear and a sixth gear, the first gear being rotatably arranged on the inner wall of the first clamping plate through a bearing, and a tooth meshing with the first gear is fixedly provided on the second clamping plate, the second gear is rotatably arranged on one side of the first gear, the third gear and the fourth gear are both rotatably arranged on the inner wall of the fixed plate through a bearing, a chain transmission is arranged between the second gear and the third gear, the third gear and the fourth gear are chain transmission arranged, the fifth gear is rotatably arranged on the inner wall of the first protective visible plate through a bearing, and a tooth meshing with the fifth gear is fixedly provided on the second protective visible plate, the sixth gear is rotatably arranged on the side wall of the fifth gear through a bearing, and the sixth gear and the fourth gear are chain transmission arranged.

[0010] The present invention is beneficial in that:

[0011] The present invention fixes the two ends of the overlong material by arranging a positioning and lifting mechanism, thereby preventing the two ends of the material from being accidentally touched and shaken due to being too long during the welding process, thereby affecting the welding effect.

[0012] The present invention sets a fixing mechanism, and through the position adjustment component in the fixing mechanism, the position adjustment component can be moved to both sides of the welding point to fix the two sides of the welding point, thereby ensuring the stability of the welding point. The device is suitable for materials of different shapes and ensures the stability of the welding process when welding special-shaped materials.

[0013] The present invention fixes the protection component, and the first protection visual plate and the second protection visual plate both have visual effects, and the protection areas of the first protection visual plate and the second protection are changed in a one-to-one ratio according to the volume of the material, which does not affect the occupied position and the workers are protected during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The accompanying drawings of the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of a welding clamping structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of a welding clamping structure of the present invention. Figure 2 ;

[0017] Figure 3 It is a schematic diagram of a top cross-sectional structure of the clamping mechanism of the present invention;

[0018] Figure 4 Is an enlarged structural schematic diagram of the positioning lifting mechanism of the present invention;

[0019] Figure 5 is an enlarged structural schematic diagram of the positioning member of the present invention;

[0020] Figure 6 This is an enlarged structural diagram of the fixing mechanism of the present invention. Figure 1 ;

[0021] Figure 7 This is an enlarged structural diagram of the fixing mechanism of the present invention. Figure 2 ;

[0022] Figure 8 It is a schematic cross-sectional structural diagram of the fixing mechanism of the present invention.

[0023] Description of reference numerals:

[0024] 1. Base; 2. Support legs; 3. Processing plate; 4. Clamping mechanism; 41. Horizontal adjustment assembly; 411. First plate; 412. Second plate; 413. First motor; 414. First screw; 415. First slide bar; 416. Moving block; 417. Sliding block; 42. Vertical adjustment assembly; 421. Second motor; 422. Second screw; 423. Clamping plate; 5. Positioning and lifting mechanism; 51. Lifting assembly; 511. Fixed rod; 512. Lifting plate; 52. Positioning assembly; 521. First multi-stage electric telescopic rod; 522. First elbow; 523. Second multi-stage electric telescopic rod; 524. Second elbow; 525. Third multi-stage electric The telescopic rod; 526, the third motor; 53, the positioning member; 531, the center rod; 532, the fourth multi-stage electric telescopic rod; 533, the abutment; 6, the fixing mechanism; 61, the position adjustment component; 611, the reciprocating screw slide; 612, the fourth motor; 613, the fifth motor; 614, the electric push rod; 62, the fixed protection component; 621, the fixing plate; 622, the first clamping plate; 623, the second clamping plate; 624, the first protective visual plate; 625, the second protective visual plate; 63, the gear member; 631, the first gear; 632, the second gear; 633, the third gear; 634, the fourth gear; 635, the fifth gear; 636, the sixth gear. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0028] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] like Figure 1 - Figure 8 As shown, a welding clamping structure according to the present invention includes a base 1, a plurality of supporting legs 2 are fixedly provided at the four corners of the top of the base 1, a processing plate 3 is fixedly provided on the top of the plurality of supporting legs 2, a clamping mechanism 4 for clamping objects of different specifications is provided on the processing plate 3, the clamping mechanism 4 includes a lateral adjustment component 41 and a vertical adjustment component 42, the lateral adjustment component 41 includes a first plate body 411, a second plate body 412, a first motor 413, a first screw rod 414, a first slide bar 415, a moving block 416 and a sliding block 417, the first plate body 411 and the second plate body 412 are respectively fixedly provided on the two side walls of the processing plate 3, the first screw rod 414 is rotatably provided between the inner walls of the first plate body 411 through a bearing, the first motor 413 is fixedly provided on one side of the first plate body 411 and the output end is fixedly provided with the first screw rod 414, the first slide bar 41 5 is fixedly arranged between the inner walls of the second plate body 412, the moving block 416 is threadedly arranged with the first screw rod 414, the sliding block 417 is slidably arranged with the first sliding rod 415, the vertical adjustment component 42 includes a second motor 421, a second screw rod 422 and a clamping plate 423, the second motor 421 is fixedly arranged with a side wall of the sliding block 417, one end of the second screw rod 422 is rotatably arranged with a side wall of the moving block 416 through a bearing and the other end is fixedly arranged with the output end of the second motor 421, the second screw rod 422 is symmetrically provided with protrusions and the protrusions extend out of the processing plate 3, and the processing plate 3 is provided with a slide groove for the protrusions to slide, the clamping plate 423 is fixedly arranged with the top of the protrusion, both side walls of the processing plate 3 are fixedly provided with a positioning and lifting mechanism 5 for positioning both ends of the material, and the processing plate 3 is also provided with a fixing mechanism 6 for fixing both sides of the welding position.

[0030] First, check the length of the welding material. If the length of the material is shorter than the length of the processing plate 3, there is no need to use the positioning and lifting mechanism 5 to position the two sides of the material. The positioning and lifting mechanism 5 fixes the two ends of the overlong material to avoid accidental shaking caused by the excessive length of the two ends of the material during welding, thereby affecting the welding effect. Among them, the positioning and lifting mechanism 5 includes a lifting component 51 and a positioning component 52. The lifting component 51 includes a fixing rod 511 and a lifting plate 512. The fixing rod 511 is fixedly arranged at the central axis of one side wall of the processing plate 3. The lifting plate 512 is fixedly arranged with the fixing rod 511, and the upper surface of the lifting plate 512 is aligned with the processing plate 3. 3, preferably, the positioning assembly 52 includes a first multi-stage electric telescopic rod 521, a first curved pipe 522, a second multi-stage electric telescopic rod 523, a second curved pipe 524, a third multi-stage electric telescopic rod 525, a third motor 526 and a positioning member 53, the first multi-stage electric telescopic rod 521 is fixedly arranged on the fixing rod 511, one end of the first curved pipe 522 is fixedly arranged with the output end of the first multi-stage electric telescopic rod 521, the other end of the first curved pipe 522 is fixedly arranged with the second multi-stage electric telescopic rod 523, the output end of the second multi-stage electric telescopic rod 523 is fixedly arranged with one end of the second curved pipe 524, and the second curved pipe 525 is fixedly arranged with one end of the second curved pipe 524. The other end of 524 is fixedly arranged with the third multi-stage electric telescopic rod 525, the output end of the third multi-stage electric telescopic rod 525 is fixedly arranged with the third motor 526, and the output end of the third motor 526 is fixedly arranged with the positioning member 53. Preferably, the positioning member 53 includes a central rod 531, a fourth multi-stage electric telescopic rod 532 and a butt joint 533. The central rod 531 is fixedly arranged with the output end of the third motor 526, and the fourth multi-stage electric telescopic rod 532 is evenly provided with a plurality of them along the circumferential direction of the central rod 531. The output end of the fourth multi-stage electric telescopic rod 532 is fixedly arranged with the butt joint 533. When the length of the material is longer than the length of the processing plate 3, the fourth multi-stage electric telescopic rod 532 is fixedly arranged with the butt joint 533. When the length of the material is too long, the above operations are inconvenient, and the positioning and lifting mechanism 5 is used to fix the two ends of the overlong material. First, the two ends of the material are placed on the lifting plate 512 for lifting. According to the length of the material, the positioning member 53 needs to be placed inside the material pipe. Therefore, according to the position of the welding pipe, the positioning member 53 needs to be transferred to the center point of the inner wall of the welding pipe through the first multi-stage electric telescopic rod 521, the second multi-stage electric telescopic rod 523 and the third multi-stage electric telescopic rod 525, and then the third motor 526 and the fourth multi-stage electric telescopic rod 532 are started to abut the abutment joint 533 with the inside of the welding pipe, thereby fixing the position of the two ends.

[0031] Secondly, the fixing mechanism 6 includes a position adjustment component 61 and a fixed protection component 62, the adjustment component includes a reciprocating screw slide 611, a fourth motor 612, a fifth motor 613 and an electric push rod 614, the reciprocating screw slide 611 is fixedly arranged on a side wall of the base 1, the fourth motor 612 is fixedly arranged on one side of the reciprocating screw slide 611 and the output end is fixedly arranged with the screw, the fifth motor 613 is slidably arranged on the reciprocating screw slide 611, the electric push rod 614 is fixedly arranged with the output end of the fifth motor 613, and the output end of the electric push rod 614 is fixedly provided with an L-shaped elbow. Preferably, the fixed protection component 62 includes a fixed plate 621, a first clamping plate 622, and a second clamping plate 623 , a first protective visual plate 624, a second protective visual plate 625 and a gear member 63, the fixed plate 621 is fixedly arranged with the L-shaped elbow, the first clamping plate 622 is provided with two and is fixedly arranged with a side wall of the fixed plate 621, the second clamping plate 623 is slidably arranged inside the first clamping plate 622, the first protective visual plate 624 is fixedly arranged on a side wall of the fixed plate 621, the second protective visual plate 625 is slidably arranged inside the first protective visual plate 624, and the gear member 63 is arranged in the fixed plate 621. Preferably, the gear member 63 includes a first gear 631, a second gear 632, a third gear 633, a fourth gear 634, a fifth gear 635 and a sixth gear 636. The first gear The gear 631 is rotatably arranged on the inner wall of the first clamping plate 622 through a bearing, and the second clamping plate 623 is fixed with teeth meshing with the first gear 631, the second gear 632 is rotatably arranged on one side of the first gear 631, the third gear 633 and the fourth gear 634 are both rotatably arranged on the inner wall of the fixed plate 621 through a bearing, a chain transmission is arranged between the second gear 632 and the third gear 633, and a chain transmission is arranged between the third gear 633 and the fourth gear 634, the fifth gear 635 is rotatably arranged on the inner wall of the first protective visual plate 624 through a bearing, and the second protective visual plate 625 is fixed with teeth meshing with the fifth gear 635, and the sixth gear 636 is rotatably arranged on the inner wall of the first protective visual plate 624 through a bearing. The fifth gear 635 is arranged on the side wall, and the sixth gear 636 and the fourth gear 634 are chain-driven. The lateral adjustment component 41 can be started to adjust the clamping position at both ends of the welding material tube, the vertical adjustment component 42 can be started to lock the clamping position, the first motor 413 is started to drive the first screw 414 to rotate, and under the limit of the first slide bar 415, the vertical adjustment component 42 is adjusted laterally. It should be noted that the two groups of vertical adjustment components 42 are symmetrically arranged, so that they move in opposite directions when sliding on the processing plate 3. After the adjustment is completed, the second motor 421 is started to drive the second screw 422 to rotate, so that the clamping plate 423 clamps the welding material under the limit of the slide groove on the processing plate 3.

[0032] When the length of the material is shorter than the length of the processing plate 3, the material is first placed on the processing plate 3, and then the welding point of the material is determined. Then, the fixing mechanism 6 is moved to both sides of the welding point to fix the two sides of the welding point by the fixing mechanism 6 to ensure the stability during welding. The material is placed between the first clamping plate 622 and the second clamping plate 623, and the position between the first clamping plate 622 and the second clamping plate 623 is adjusted according to the size of the material. The second clamping plate 623 is pulled so that the teeth at the bottom of the second clamping plate 623 drive the first gear 631 to rotate, and the gears arranged through multiple chain drives drive the sixth gear 636 to rotate, and further drive the second protective visual plate 625 to slide out of the first protective visual plate 624. It should be noted that the first protective visual plate 624 and the second protective visual plate 625 are both visual effects, and the material protection area changes according to the volume of the material, which does not affect the occupied position and the staff is protected during welding. After adjusting the clamping space, the position of the second clamping plate 623 can be fixed by bolts.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made should be included in the protection scope of the present invention.

Claims

1. A welding clamping structure, comprising a base (1), characterized in that: A plurality of supporting legs (2) are fixedly provided at the four corners of the top of the base (1); a processing plate (3) is fixedly provided on the top of the plurality of supporting legs (2); a clamping mechanism (4) for clamping objects of different specifications is provided on the processing plate (3); the clamping mechanism (4) comprises a lateral adjustment component (41) and a vertical adjustment component (42); the lateral adjustment component (41) comprises a first plate body (411), a second plate body (412), a first motor (413), a first screw rod (414), a first slide rod (415), a moving block (416) and a sliding block (417); the first plate body (411) and the second plate body (412) are respectively fixedly provided on the two side walls of the processing plate (3); the first screw rod (414) is connected to the processing plate (3) by a shaft The first motor (413) is fixedly arranged on one side of the first plate (411) and its output end is fixedly arranged on the first screw rod (414). The first slide rod (415) is fixedly arranged on the inner wall of the second plate (412). The moving block (416) is threadedly arranged on the first screw rod (414). The slide block (417) is slidably arranged on the first slide rod (415). The vertical adjustment component (42) includes a second motor (421), a second screw rod (422) and a clamping plate (423). The second motor (421) is fixedly arranged on one side wall of the slide block (417). One end of the second screw rod (422) is rotatably arranged on the one side wall of the moving block (416) through a bearing and the other end is rotatably arranged on the one side wall of the moving block (416). The end is fixedly arranged with the output end of the second motor (421), the second screw rod (422) is symmetrically provided with a protrusion and the protrusion extends out of the processing plate (3), and the processing plate (3) is provided with a slide groove for the protrusion to slide, the clamping plate (423) is fixedly arranged with the top of the protrusion, and both side walls of the processing plate (3) are fixedly provided with a positioning and lifting mechanism (5) for positioning both ends of the material, the positioning and lifting mechanism (5) includes a lifting component (51) and a positioning component (52), the lifting component (51) includes a fixing rod (511) and a lifting plate (512), the fixing rod (511) is fixedly arranged at the central axis of one side wall of the processing plate (3), the lifting plate (512) and the fixing rod (511) are fixedly arranged, and the lifting plate (512) and the fixing rod (511) are fixedly arranged, and the lifting plate (512) 12) has an upper surface flush with an upper surface of the processing plate (3), the positioning assembly (52) comprising a first multi-stage electric telescopic rod (521), a first curved pipe (522), a second multi-stage electric telescopic rod (523), a second curved pipe (524), a third multi-stage electric telescopic rod (525), a third motor (526) and a positioning member (53), the first multi-stage electric telescopic rod (521) being fixedly arranged on the fixing rod (511), one end of the first curved pipe (522) being fixedly arranged with an output end of the first multi-stage electric telescopic rod (521), the other end of the first curved pipe (522) being fixedly arranged with the second multi-stage electric telescopic rod (523), and the output end of the second multi-stage electric telescopic rod (523) being fixedly arranged with one end of the second curved pipe (524),The other end of the second curved pipe (524) is fixedly arranged with the third multi-stage electric telescopic rod (525), the output end of the third multi-stage electric telescopic rod (525) is fixedly arranged with the third motor (526), ​​the output end of the third motor (526) is fixedly arranged with the positioning member (53), the positioning member (53) comprises a central rod (531), a fourth multi-stage electric telescopic rod (532) and an abutment joint (533), the central rod (531) is fixedly arranged with the output end of the third motor (526), ​​a plurality of fourth multi-stage electric telescopic rods (532) are evenly arranged along the circumferential direction of the central rod (531), the output end of the fourth multi-stage electric telescopic rod (532) is fixedly arranged with the abutment joint (533), and a fixing mechanism (6) for fixing both sides of the welding position is also provided on the processing plate (3).

2. A welding clamping structure according to claim 1, characterized in that: The fixing mechanism (6) comprises a position adjustment component (61) and a fixed protection component (62); the adjustment component comprises a reciprocating screw slide (611), a fourth motor (612), a fifth motor (613) and an electric push rod (614); the reciprocating screw slide (611) is fixedly arranged on a side wall of the base (1); the fourth motor (612) is fixedly arranged on one side of the reciprocating screw slide (611) and its output end is fixedly arranged with the screw; the fifth motor (613) is slidably arranged on the reciprocating screw slide (611); the electric push rod (614) is fixedly arranged with the output end of the fifth motor (613); and an L-shaped elbow is fixedly arranged at the output end of the electric push rod (614).

3. A welding clamping structure according to claim 2, characterized in that: The fixed protection assembly (62) comprises a fixed plate (621), a first clamping plate (622), a second clamping plate (623), a first protection visual plate (624), a second protection visual plate (625) and a gear member (63); the fixed plate (621) is fixedly arranged with the L-shaped bent pipe; the first clamping plate (622) is provided with two and is fixedly arranged with a side wall of the fixed plate (621); the second clamping plate (623) is slidably arranged inside the first clamping plate (622); the first protection visual plate (624) is fixedly arranged on a side wall of the fixed plate (621); the second protection visual plate (625) is slidably arranged inside the first protection visual plate (624); and the gear member (63) is arranged inside the fixed plate (621).

4. A welding clamping structure according to claim 3, characterized in that: The gear member (63) comprises a first gear (631), a second gear (632), a third gear (633), a fourth gear (634), a fifth gear (635) and a sixth gear (636); the first gear (631) is rotatably mounted on the inner wall of the first clamping plate (622) via a bearing, and the second clamping plate (623) is fixedly provided with teeth meshing with the first gear (631); the second gear (632) is rotatably mounted on one side of the first gear (631); the third gear (633) and the fourth gear (634) are both rotatably mounted on the inner wall of the first clamping plate (622) via a bearing. The inner wall of the fixed plate (621) is provided with a chain transmission between the second gear (632) and the third gear (633), the third gear (633) and the fourth gear (634) are provided with a chain transmission, the fifth gear (635) is rotatably arranged on the inner wall of the first protective visual plate (624) via a bearing, and teeth meshing with the fifth gear (635) are fixedly arranged on the second protective visual plate (625), the sixth gear (636) is rotatably arranged on the side wall of the fifth gear (635) via a bearing, and the sixth gear (636) and the fourth gear (634) are provided with a chain transmission.

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