A sheet metal part welding auxiliary component

Abstract

The present application relates to the technical field of welding tooling, and particularly relates to a sheet metal part welding auxiliary component, which comprises a welding tooling machine table, a welding reference support plate is fixedly connected to the outside of the welding tooling machine table, a longitudinal sliding groove opening and a transverse sliding groove opening are formed in the outside of the welding reference support plate, an auxiliary positioning assembly is arranged in the longitudinal sliding groove opening, and a circumferential abutting assembly is arranged in the transverse sliding groove opening. The sliding cooperation between the long strip abutting plate and the guide transverse groove opening formed in the fixed clamping plate provides a stable guide and limiting path for the transversely moving short side sheet metal part. When the long strip abutting plate pushes the short side sheet metal part to move to the edge corner contact with the positioned long side sheet metal part, the long side sheet metal part itself constitutes a physical stop, and the final position of the short side is automatically limited. The structure design makes the positioning position of the short side and the actual length of the long side accurately match, and realizes the rapid and accurate alignment of the four sheet metal parts.

Description

Technical Field

[0001] This invention relates to the technical field of welding fixtures, and in particular to an auxiliary component for welding sheet metal parts. Background Technology

[0002] In the field of sheet metal processing, it is often necessary to weld four sheet metal parts to form a rectangular frame structure, such as the frame of a box or the frame of an equipment. Due to the different specifications of different products, the dimensions of such frames vary, with frequent changes in length, width, and diagonal dimensions. Currently, the assembly and welding of such frames mostly rely on manual positioning by workers or calibration using simple right-angle rulers, stops, and other general-purpose fixtures. However, this traditional method has obvious shortcomings when dealing with sheet metal parts of different sizes: on the one hand, for each new frame size, operators need to remeasure and adjust the positioning reference, and even replace the matching special fixtures, resulting in cumbersome procedures and long auxiliary time; on the other hand, traditional fixtures are mostly fixed structures, and their positioning range is limited, making it difficult to take into account the precise positioning of frames of different sizes. Therefore, there is an urgent need for a welding auxiliary tooling that can quickly and accurately position sheet metal parts of different sizes. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a sheet metal welding auxiliary component.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sheet metal welding auxiliary component, including a welding fixture machine base, a welding reference support plate fixedly connected to the outside of the welding fixture machine base, a longitudinal sliding groove and a transverse sliding groove opened on the outside of the welding reference support plate, the longitudinal sliding groove and the transverse sliding groove being opened vertically and horizontally intersecting on the outside of the welding reference support plate, wherein the longitudinal sliding groove is located at the top and the transverse sliding groove is located at the bottom, a central base is fixedly connected at the center of the longitudinal sliding groove and the transverse sliding groove, and an auxiliary positioning component for fixing the sheet metal part is provided inside the longitudinal sliding groove, the auxiliary positioning component including a longitudinal sliding table and a longitudinal sliding table. The longitudinal trapezoidal screw with positive and negative threads is movably sleeved above the interior of the central base. One end of the longitudinal trapezoidal screw with positive and negative threads is rotatably connected to the inner wall of the longitudinal slide groove, and the other end of the longitudinal trapezoidal screw with positive and negative threads moves through the interior of the longitudinal slide groove and extends to the outside of the welding reference support plate. The end of the longitudinal trapezoidal screw with positive and negative threads away from the interior of the longitudinal slide groove is fixedly connected to a longitudinal rotating handwheel. There are two longitudinal sliding platforms, which are threaded to both sides of the exterior of the longitudinal trapezoidal screw with positive and negative threads. Fixed clamps are fixedly connected to the exterior of both longitudinal sliding platforms, and guide transverse slots are opened on both sides of the exterior of each fixed clamp.

[0005] As a preferred embodiment of the present invention, a buffer adaptation component is provided on one side of each of the two fixed clamping plates that are close to each other. Each buffer adaptation component includes a longitudinal pad and a slot. The slot is opened on the outside of the fixed clamping plate. A movable insert is movably connected inside the slot. The longitudinal pad is fixedly connected to the side of the movable insert away from the inside of the slot. The longitudinal pad moves longitudinally outside the fixed clamping plate through the movable insert. A buffer circular slot is opened on the outside of the movable insert. A longitudinal compression spring is provided inside the buffer circular slot. One end of the longitudinal compression spring is fixedly connected to the inner wall of the buffer circular slot. The end of the longitudinal compression spring away from the inner wall of the buffer circular slot is fixedly connected to the inner wall of the slot. A longitudinal cylinder is movably fitted inside the longitudinal compression spring. The longitudinal cylinder is fixedly connected to the inner wall of the slot and is used to support the longitudinal compression spring.

[0006] As a preferred embodiment of the present invention, a circumferential clamping assembly for positioning a horizontally placed sheet metal part is provided inside the transverse sliding groove. The circumferential clamping assembly includes a transverse sliding platform and a transverse positive and negative threaded trapezoidal screw. The transverse positive and negative threaded trapezoidal screw is movably sleeved inside the lower part of the central base. One end of the transverse positive and negative threaded trapezoidal screw is rotatably connected to the inner wall of the transverse sliding groove, and the other end of the transverse positive and negative threaded trapezoidal screw moves through the inside of the transverse sliding groove and extends to the outside of the welding reference support plate. A transverse rotating handwheel for auxiliary rotation is fixedly connected to the end of the transverse positive and negative threaded trapezoidal screw away from the inside of the transverse sliding groove. There are two transverse sliding platforms, which are respectively threaded to both sides of the outside of the transverse positive and negative threaded trapezoidal screw, and the two transverse sliding platforms are connected by transverse positive and negative threads. The trapezoidal lead screw is limited to move laterally inside the transverse sliding groove. Each transverse sliding platform is provided with two long strip abutments and two connecting vertical plates on its exterior. The width of the long strip abutments is adapted to the width of the guide transverse groove. The two connecting vertical plates are fixedly connected to the exterior of the two transverse sliding platforms. The two long strip abutments are fixedly connected to the opposite side of the exterior of the two connecting vertical plates. The two ends of the long strip abutments are movably connected to the interior of the guide transverse grooves on both sides. The circumferential clamping assembly also includes two guide slots. The two guide slots are respectively opened on both sides inside the transverse sliding groove. A limiting round rod is fixedly connected inside the transverse sliding platform. The two ends of the limiting round rod are movably connected to the interior of the two guide slots. The sliding of the transverse sliding platform inside the transverse sliding groove is limited by the limiting round rod.

[0007] As a preferred embodiment of the present invention, an assistive component for preventing sheet metal parts from detaching is provided between the two elongated support plates. The assistive component includes a base plate and a vertical trapezoidal screw. The base plate is fixedly connected to the center of the outside of the welding reference support plate. A hollow column is fixedly connected to the side of the base plate away from the welding reference support plate. The side of the hollow column is provided with a communicating slot. The two ends of the vertical trapezoidal screw are respectively rotatably connected to the inside of the base plate and the hollow column. The middle part of the vertical trapezoidal screw is provided with a trapezoidal thread. A drive ring is threaded to the middle part of the vertical trapezoidal screw. A crossbeam plate is fixedly connected to both sides of the outside of the drive ring. The crossbeam plate is movably connected to the inside of the hollow column. By driving the vertical trapezoidal screw to rotate, the drive ring is driven to make an upward or downward linear movement inside the hollow column. A transverse anti-slip plate and a transverse height positioning plate are provided at the end of the crossbeam plate away from the drive ring for contact with the sheet metal parts. A slot is provided at the end of the crossbeam plate away from the drive ring for the transverse anti-slip plate. The sliding plate is movably connected inside the slot. A limiting slot is opened inside the transverse anti-slip plate. A support column is fixedly connected inside the slot. One end of the support column, away from the inside of the slot, moves through the outside of the transverse anti-slip plate and extends into the inside of the limiting slot. The support column provides stable transverse support for the sliding of the transverse anti-slip plate inside the slot. A transverse compression spring is movably fitted on the outside of the support column. The two ends of the transverse compression spring are fixedly connected to the side of the transverse anti-slip plate facing the inner wall of the slot. A transverse height positioning plate is fixedly connected to the end of the transverse anti-slip plate away from the crossbeam plate. The transverse height positioning plate is L-shaped. The assist component also includes two longitudinal height positioning plates. The two longitudinal height positioning plates are fixedly connected to the two sides of the outside of the two crossbeam plates. The longitudinal height positioning plates are located inside the hollow column and move up or down with the crossbeam plate. The longitudinal height positioning plates and the transverse height positioning plates are set at the same height outside the welding reference support plate.

[0008] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. This invention provides a stable guiding and limiting path for the laterally moving short sheet metal parts through the sliding fit between the long strip abutment plate and the guide slot on the fixed clamping plate. When the long strip abutment plate pushes the short sheet metal parts to contact the corner of the already positioned long sheet metal parts, the long sheet metal parts themselves constitute a physical stop, automatically limiting the final position of the short side. This structural design makes the positioning position of the short side precisely match the actual length of the long side without additional measurement or adjustment, thereby achieving rapid and accurate alignment of the four sheet metal parts.

[0009] 2. This invention, by setting up a buffer adaptation component, achieves longitudinal sliding adjustment within the slot through the linkage of the longitudinal pad and the movable insert plate. Combined with the elastic force provided by the longitudinal compression spring, the longitudinal pad has an adaptive buffering capability when contacting the sheet metal part. This effectively absorbs excess stress caused by positioning errors or dimensional fluctuations when clamping the sheet metal part, avoiding workpiece damage caused by rigid clamping, while maintaining a stable clamping force, thus improving the reliability and yield of the welding process.

[0010] 3. In the process of the short-side sheet metal part moving laterally with the long strip support plate, the lateral height positioning plate, through the elastic force provided by the lateral compression spring, always keeps the short-side sheet metal part tightly attached to the pushing surface of the long strip support plate. This elastic effect not only ensures the positional stability of the short-side sheet metal part during movement, but also effectively prevents it from going too deep due to excessive pushing force, thus preventing it from misaligning or colliding with the long-side sheet metal part, thereby achieving precise adaptive docking of the corners of the short-side sheet metal part and the long-side sheet metal part.

[0011] 4. By rotating the vertical trapezoidal screw, the drive ring and crossbeam plate are driven to move up and down within the hollow column. The height of the horizontal height positioning plate and the vertical height positioning plate can be adjusted simultaneously. This structure allows the assist component to quickly adjust the support height according to the thickness of different sheet metal parts, ensuring that sheet metal parts of different specifications can maintain a uniform horizontal reference before welding, thereby improving the versatility and ease of adjustment of the tooling. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the welding reference support plate of the present invention; Figure 3 For the present invention Figure 2 A structural diagram showing the positioning of four sheet metal parts on the welding reference support plate. Figure 4 For the present invention Figure 2 A schematic diagram of the unfolded structure of the welding reference support plate; Figure 5 This is a partial structural schematic diagram of the welding reference support plate of the present invention; Figure 6 This is a partial cross-sectional view of the fixing clamp of the present invention; Figure 7 This is a schematic diagram of the structure of the long strip plate of the present invention; Figure 8 This is a schematic diagram of the hollow column structure of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the cross-sectional structure of the central crossbeam plate.

[0013] The components include: 10. Welding fixture platform; 11. Welding reference support plate; 12. Longitudinal slide groove; 13. Transverse slide groove; 14. Center base; 20. Transverse sliding platform; 21. Long strip support plate; 22. Transverse rotating handwheel; 23. Guide slot; 24. Transverse positive and negative threaded trapezoidal screw; 25. Limiting round rod; 26. Connecting vertical plate; 30. Longitudinal sliding platform; 31. Longitudinal positive and negative threaded trapezoidal screw; 32. Longitudinal rotating handwheel; 33. Fixing clamp; 34. Guide transverse slot. ; 40. Longitudinal pad; 41. Slot; 42. Movable insert plate; 43. Longitudinal cylinder; 44. Longitudinal compression spring; 45. Buffer circular slot; 50. Base plate; 51. Vertical trapezoidal lead screw; 52. Hollow column; 53. Horizontal beam plate; 54. Slot; 55. Lateral anti-slip plate; 56. Limiting long slot; 57. Support column; 58. Lateral compression spring; 59. Vertical rotating handwheel; 510. Longitudinal height positioning plate; 511. Drive ring; 512. Lateral height positioning plate. Detailed Implementation

[0014] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0015] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a sheet metal welding auxiliary component includes a welding fixture 10. A welding reference support plate 11 is fixedly connected to the outside of the welding fixture 10. The welding reference support plate 11 has a longitudinal sliding groove 12 and a transverse sliding groove 13 on its outside. The longitudinal sliding groove 12 and the transverse sliding groove 13 are staggered vertically and horizontally on the outside of the welding reference support plate 11, with the longitudinal sliding groove 12 located at the top and the transverse sliding groove 13 located at the bottom. A central base 14 is fixedly connected at the center of the longitudinal sliding groove 12 and the transverse sliding groove 13. An auxiliary positioning component for fixing sheet metal parts is provided inside the longitudinal sliding groove 12. The auxiliary positioning component includes a longitudinal sliding table 30 and a longitudinal positive and negative threaded trapezoidal screw 31. The longitudinal trapezoidal screw 31 is movably sleeved above the interior of the central base 14. One end of the longitudinal trapezoidal screw 31 is rotatably connected to the inner wall of the longitudinal slide groove 12, and the other end of the longitudinal trapezoidal screw 31 moves through the interior of the longitudinal slide groove 12 and extends to the exterior of the welding reference support plate 11. The end of the longitudinal trapezoidal screw 31 away from the interior of the longitudinal slide groove 12 is fixedly connected to a longitudinal rotating handwheel 32. There are two longitudinal sliding platforms 30, which are threaded to both sides of the exterior of the longitudinal trapezoidal screw 31. Fixed clamps 33 are fixedly connected to the exterior of both longitudinal sliding platforms 30, and guide slots 34 are opened on both sides of the exterior of each fixed clamp 33.

[0016] See Figure 2 , Figure 3 , Figure 4 and Figure 6 Each of the two fixed clamping plates 33 has a buffer adaptation component on one side that is close to each other. Each buffer adaptation component includes a longitudinal pad 40 and a slot 41. The slot 41 is opened on the outside of the fixed clamping plate 33. A movable insert plate 42 is movably connected inside the slot 41. The longitudinal pad 40 is fixedly connected to the side of the movable insert plate 42 away from the inside of the slot 41. The longitudinal pad 40 is driven by the movable insert plate 42 to move longitudinally outside the fixed clamping plate 33. A buffer circular groove 45 is opened on the outside of the movable insert plate 42. A longitudinal compression spring is provided inside the buffer circular groove 45. Spring 44, one end of the longitudinal compression spring 44 is fixedly connected to the inner wall of the buffer circular groove 45, and the other end of the longitudinal compression spring 44 away from the inner wall of the buffer circular groove 45 is fixedly connected to the inner wall of the slot 41. A longitudinal cylinder 43 is movably fitted inside the longitudinal compression spring 44. The longitudinal cylinder 43 is fixedly connected to the inner wall of the slot 41. The longitudinal cylinder 43 passes through the interior of the longitudinal compression spring 44, providing stable guiding support and preventing the spring from tilting or becoming unstable during compression. The buffer circular groove 45 provides space for the compression stroke of the spring, ensuring smooth movement.

[0017] The longer sheet metal part is placed outside the two longitudinal pads 40. At this time, rotating the longitudinal rotating handwheel 32 drives the longitudinal positive and negative thread trapezoidal screw 31 to rotate synchronously. The rotation of the longitudinal positive and negative thread trapezoidal screw 31 drives the two longitudinal sliding plates 30 to move longitudinally towards each other inside the longitudinal sliding groove 12. The two longitudinal sliding plates 30 moving towards each other drive the two fixed clamping plates 33, movable insert plates 42 and longitudinal pads 40 to move synchronously closer. The longitudinal pads 40 drive the sheet metal part to move towards each other in a longitudinal angle.

[0018] See Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The transverse sliding groove 13 is equipped with a circumferential clamping assembly for positioning a transversely placed sheet metal part. The circumferential clamping assembly includes a transverse sliding plate 20 and a transverse positive and negative threaded trapezoidal screw 24. The transverse positive and negative threaded trapezoidal screw 24 is movably sleeved inside the lower part of the central base 14. One end of the transverse positive and negative threaded trapezoidal screw 24 is rotatably connected to the inner wall of the transverse sliding groove 13, and the other end of the transverse positive and negative threaded trapezoidal screw 24 moves through the interior of the transverse sliding groove 13 and extends to the exterior of the welding reference support plate 11. The end of the transverse positive and negative threaded trapezoidal screw 24 away from the interior of the transverse sliding groove 13 is fixedly connected to a transverse rotating handwheel 22 for auxiliary rotation. There are two transverse sliding plates 20. The two transverse sliding plates 20 are respectively threaded to both sides of the exterior of the transverse positive and negative threaded trapezoidal screw 24, and the two transverse sliding plates 20 are limited by the transverse positive and negative threaded trapezoidal screw 24 in the transverse sliding groove 13. The transverse sliding plate 20 has two long strip abutments 21 and two connecting vertical plates 26 on its exterior. The width of the long strip abutments 21 is adapted to the width of the guide transverse slot 34. The two connecting vertical plates 26 are fixedly connected to the exterior of the two transverse sliding plates 20, and the two long strip abutments 21 are fixedly connected to the opposite side of the exterior of the two connecting vertical plates 26. The two ends of the long strip abutments 21 are movably connected to the interior of the guide transverse slots 34 on both sides. The circumferential clamping assembly also includes two guide slots 23, which are respectively opened on both sides inside the transverse sliding slot 13. The interior of the transverse sliding plate 20 is fixedly connected to a limiting rod 25. The two ends of the limiting rod 25 are movably connected to the interior of the two guide slots 23. The sliding of the transverse sliding plate 20 inside the transverse sliding slot 13 is limited by the limiting rod 25.

[0019] The shorter sheet metal part is placed in a lateral position outside the welding reference support plate 11. By rotating the lateral handwheel 22, the lateral positive and negative thread trapezoidal screw 24 is driven to rotate synchronously. The rotation of the lateral positive and negative thread trapezoidal screw 24 drives the two lateral sliding plates 20 to move laterally towards each other inside the lateral sliding groove 13. The two lateral sliding plates 20 move towards each other, driving the two connecting vertical plates 26 and causing the two long strip abutments 21 to push the two sheet metal parts in the lateral position towards the center outside the welding reference support plate 11. The two long strip abutments 21 first move and engage into the interior of the guide horizontal groove 34 for limitation. The two long strip abutments 21 continue to move until they contact the corners of the two longitudinally placed sheet metal parts. At this time, the two longitudinally placed sheet metal parts limit the distance of the two long strip abutments 21 moving towards each other, so that when the laterally placed sheet metal parts are moved, they will not exceed the length of the body of the longitudinally placed sheet metal parts, thereby achieving the effect of quickly positioning the laterally placed sheet metal parts.

[0020] After the two long strip plates 21 position the transverse sheet metal parts, the longitudinal rotation handwheel 32 is then rotated to cause the two fixed clamping plates 33 to move the two longitudinal pads 40 toward each other, allowing the two longitudinal sheet metal parts to quickly fit into the two transverse sheet metal parts to form a sheet metal frame. The longitudinal compression spring 44, in conjunction with the spring force generated by the movable insert plate 42 and the longitudinal pads 40, provides elastic cushioning to fix the sheet metal parts, preventing damage caused by excessive stress when the sheet metal parts are close together. When the four sheet metal parts are positioned by the two long strip plates 21 and the two fixed clamping plates... After the initial approach is achieved under the limit of 33, the positions of the long strip abutment 21 and the fixed clamping plate 33 are further adjusted to fix the four sheet metal parts. This two-stage operation, from initial positioning to final fixation, is carried out. The two-stage positioning method reserves elastic buffer space during the initial approach of the four sheet metal parts, allowing the four sheet metal parts to be pre-adjusted to the appropriate position under the guidance of the long strip abutment 21 and the fixed clamping plate 33. Then, force is gradually applied to complete the final fixation, which effectively avoids the problem of edge warping of sheet metal parts caused by direct rigid clamping and ensures the stability of the sheet metal frame during assembly.

[0021] After quickly aligning the four sheet metal parts, the four connection points of the sheet metal parts can be stably welded.

[0022] See Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 9A support assembly for preventing sheet metal parts from detaching is provided between the two long strip plates 21. The support assembly includes a base plate 50 and a vertical trapezoidal screw 51. The base plate 50 is fixedly connected to the center of the outside of the welding reference support plate 11. A hollow column 52 is fixedly connected to the side of the base plate 50 away from the welding reference support plate 11. The side of the hollow column 52 has a communicating slot. The two ends of the vertical trapezoidal screw 51 are respectively rotatably connected to the inside of the base plate 50 and the hollow column 52. The middle part of the vertical trapezoidal screw 51 is set with a trapezoidal thread. A vertical rotating handwheel 59 is fixedly connected to the upper part of the outside of the vertical trapezoidal screw 51. A drive ring 5 is threadedly connected to the middle part of the vertical trapezoidal screw 51. 11. Both sides of the drive ring 511 are fixedly connected to crossbeam plates 53. The crossbeam plates 53 are movably connected inside the hollow column 52. By driving the vertical trapezoidal screw 51 to rotate, the drive ring 511 moves linearly upward or downward inside the hollow column 52. The end of the crossbeam plate 53 away from the drive ring 511 is provided with a transverse anti-shift plate 55 and a transverse height positioning plate 512 for contacting sheet metal parts. The end of the crossbeam plate 53 away from the drive ring 511 has a slot 54. The transverse anti-shift plate 55 is movably connected inside the slot 54. The transverse anti-shift plate 55 has a limit slot 56 inside. A support column 57 is fixedly connected inside the slot 54. One end of the support column 57, located away from the inside of the slot 54, extends through the outside of the transverse stop plate 55 and into the inside of the limiting slot 56. The support column 57 provides stable transverse support for the sliding of the transverse stop plate 55 within the slot 54. A transverse compression spring 58 is movably fitted around the outside of the support column 57. Both ends of the transverse compression spring 58 are fixedly connected to the side of the transverse stop plate 55 facing the inner wall of the slot 54. A transverse height positioning plate 512 is fixedly connected to the end of the transverse stop plate 55 away from the crossbeam plate 53, and the transverse height positioning plate 512 is L-shaped. The assist assembly also includes two longitudinal height positioning plates 510, which are respectively fixed... The longitudinal height positioning plate 510 is fixedly connected to both sides of the outside of the two crossbeam plates 53 and is located inside the hollow column 52. It moves up or down with the crossbeam plates 53. The longitudinal height positioning plate 510 and the transverse height positioning plate 512 are set at the same height outside the welding reference support plate 11. The longitudinal height positioning plate 510 is U-shaped. The fixed clamping plate 33 has two bottom grooves on the side near the welding reference support plate 11 to limit the position of the longitudinal height positioning plate 510. The long side sheet metal part is placed above the longitudinal height positioning plate 510, and the length of the selected long side sheet metal part to be welded will not exceed the length that the longitudinal height positioning plate 510 can place.

[0023] Before clamping the sheet metal parts, place the two longer sheet metal parts on the surface of the two longitudinal height positioning plates 510. The two longitudinal pads 40 on both sides work with the two longitudinal height positioning plates 510 to position the two longer sheet metal parts. Place the two shorter sheet metal parts on the surface of the two transverse height positioning plates 512. The transverse height positioning plates 512 work with the longitudinal height positioning plates 510 to fix the four sheet metal parts at the same height, so that the sheet metal parts are aligned for welding.

[0024] Working principle: In use: First, before clamping the sheet metal parts, place the two longer sheet metal parts on the surface of the two longitudinal height positioning plates 510, and position the two longer sheet metal parts between the two long strip plates 21. The longitudinal pads 40 on both sides cooperate with the two longitudinal height positioning plates 510 to initially position them. At the same time, place the two shorter sheet metal parts on the surface of the two transverse height positioning plates 512, and position the two shorter sheet metal parts between the two fixed clamping plates 33. The two shorter sheet metal parts are placed between the two longer sheet metal parts. The transverse height positioning plates 512 cooperate with the longitudinal height positioning plates 510 to support the four sheet metal parts at the same height.

[0025] The second step involves rotating the horizontal handwheel 22 to drive the horizontal trapezoidal screw 24 to rotate, causing the two horizontal sliding plates 20 to move synchronously towards each other within the horizontal sliding groove 13. This movement is then facilitated by the connecting vertical plate 26, which drives the two long strip abutments 21 to push the short-side sheet metal part towards the center. During this movement, the two ends of the long strip abutments 21 first engage with the guide horizontal grooves 34 on the two side fixed clamping plates 33 to obtain guidance and limitation. The two long strip abutments 21 first move laterally to fit against the two ends of the long-side sheet metal part, and the edges and corners of the long strip abutments 21 and the long-side sheet metal part have smooth friction, which does not affect the longitudinal movement of the long-side sheet metal part.

[0026] At this point, rotating the longitudinal handwheel 32 drives the longitudinal trapezoidal screw 31 to rotate, causing the two longitudinal sliding plates 30 to move synchronously towards each other within the longitudinal slide groove 12. This causes the fixed clamping plates 33 on both sides, the movable insert plate 42, and the longitudinal pad plate 40 to move the long side sheet metal parts closer to the center. The long side sheet metal parts continue to move until they contact the corner of the already positioned short side sheet metal parts. At this point, the short side sheet metal parts physically limit the further movement of the long side sheet metal parts. In conjunction with the fixed clamping plates 33 on both sides, the width of the short side sheet metal parts and the long side sheet metal parts is limited, thereby ensuring that the final positioning position of the short side sheet metal parts is adapted to the length and width of the long side sheet metal parts, achieving rapid and accurate alignment of the four sheet metal parts.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A sheet metal welding auxiliary component, comprising a welding fixture (10), wherein a welding reference support plate (11) is fixedly connected to the outside of the welding fixture (10), and the welding reference support plate (11) is provided with a longitudinal sliding groove (12) and a transverse sliding groove (13) on its outside, and a central base (14) is fixedly connected at the center of the longitudinal sliding groove (12) and the transverse sliding groove (13), characterized in that, The longitudinal sliding groove (12) is provided with an auxiliary positioning component for fixing the auxiliary sheet metal parts. The auxiliary positioning component includes a longitudinal sliding plate (30) and a longitudinal positive and negative tooth trapezoidal screw (31). The longitudinal positive and negative tooth trapezoidal screw (31) is movably sleeved on the upper part of the center base (14). There are two longitudinal sliding plates (30). The two longitudinal sliding plates (30) are respectively threaded to the two sides of the longitudinal positive and negative tooth trapezoidal screw (31). The two longitudinal sliding plates (30) are fixedly connected to the outside of a fixing plate (33). Each fixing plate (33) has a guide transverse groove (34) on both sides of its outside. The two fixing plates (33) are provided with a buffer adaptation component on the side of the two fixing plates (33) that are close to each other. The interior of the transverse slid opening (13) is provided with a circumferential clamping component for positioning transversely placed sheet metal parts; The circumferential clamping assembly includes a transverse sliding plate (20) and a transverse positive and negative tooth trapezoidal screw (24). The transverse positive and negative tooth trapezoidal screw (24) is movably sleeved inside the lower part of the central base (14). There are two transverse sliding plates (20). The two transverse sliding plates (20) are respectively threaded to the two sides of the transverse positive and negative tooth trapezoidal screw (24). Each transverse sliding plate (20) is provided with two long strip abutments (21) and two connecting vertical plates (26) on its exterior. Two connecting vertical plates (26) are fixedly connected to the outside of two horizontal sliding plates (20), and two long strip plates (21) are fixedly connected to the opposite side of the outside of the two connecting vertical plates (26). The two ends of the long strip plates (21) are movably connected to the inside of the guide horizontal slots (34) on both sides. The circumferential clamping assembly also includes two guide slots (23), which are respectively opened on both sides inside the transverse sliding groove (13). A limiting rod (25) is fixedly connected inside the transverse sliding plate (20), and the two ends of the limiting rod (25) are respectively movably connected inside the two guide slots (23). An auxiliary component for preventing sheet metal parts from coming off is provided between the two long strip abutments (21); The assist component includes a base plate (50) and a vertical trapezoidal screw (51). The base plate (50) is fixedly connected to the center of the outside of the welding reference support plate (11). A hollow column (52) is fixedly connected to the side of the base plate (50) away from the welding reference support plate (11). The side of the hollow column (52) is opened into a communicating slot. The two ends of the vertical trapezoidal screw (51) are respectively rotatably connected to the inside of the base plate (50) and the hollow column (52). The middle part of the vertical trapezoidal screw (51) is set as a trapezoidal thread. A drive ring (511) is threadedly connected to the middle part of the vertical trapezoidal screw (51).

2. The sheet metal welding auxiliary component according to claim 1, characterized in that, Each of the aforementioned buffer adaptation components includes a longitudinal pad (40) and a slot (41), the slot (41) being opened on the outside of the fixed clamp (33), and a movable insert (42) being movably connected inside the slot (41), the longitudinal pad (40) being fixedly connected to the side of the movable insert (42) away from the inside of the slot (41).

3. The sheet metal welding auxiliary component according to claim 2, characterized in that, The movable insert plate (42) has a buffer circular slot (45) on its outside. A longitudinal compression spring (44) is provided inside the buffer circular slot (45). One end of the longitudinal compression spring (44) is fixedly connected to the inner wall of the buffer circular slot (45). The end of the longitudinal compression spring (44) away from the inner wall of the buffer circular slot (45) is fixedly connected to the inner wall of the slot (41). A longitudinal cylinder (43) is movably fitted inside the longitudinal compression spring (44). The longitudinal cylinder (43) is fixedly connected to the inner wall of the slot (41), and the longitudinal cylinder (43) is used to support the longitudinal compression spring (44).

4. The sheet metal welding auxiliary component according to claim 1, characterized in that, Both sides of the drive ring (511) are fixedly connected to a crossbeam plate (53). The crossbeam plate (53) is movably connected inside the hollow column (52). The end of the crossbeam plate (53) away from the drive ring (511) is provided with a transverse anti-slip plate (55) and a transverse height positioning plate (512) for contacting the sheet metal parts.

5. A sheet metal welding auxiliary component according to claim 4, characterized in that, The crossbeam plate (53) has a slot (54) at one end away from the drive ring (511). The transverse stop plate (55) is movably connected inside the slot (54). The transverse stop plate (55) has a limiting long slot (56) inside. A support column (57) is fixedly connected inside the slot (54). One end of the support column (57) away from the inside of the slot (54) moves through the outside of the transverse stop plate (55) and extends into the inside of the limiting long slot (56). A transverse compression spring (58) is movably sleeved on the outside of the support column (57). The two ends of the transverse compression spring (58) are fixedly connected to the side of the transverse stop plate (55) facing the inner wall of the slot (54). The transverse height positioning plate (512) is fixedly connected to the end of the transverse stop plate (55) away from the crossbeam plate (53).

6. The sheet metal welding auxiliary component according to claim 4, characterized in that, The assist component also includes two longitudinal height positioning plates (510), which are fixedly connected to the two sides of the outside of the two crossbeam plates (53). The longitudinal height positioning plates (510) and the transverse height positioning plates (512) are set at the same height outside the welding reference support plate (11).

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