Aluminum alloy sheet laser welding forming device

Abstract

The application discloses an aluminum alloy plate laser welding forming device, and belongs to the technical field of laser welding equipment, which comprises a bottom plate, a displacement group, a feeding electric cylinder and a laser welding head are arranged on the bottom plate, height-adjusting carriages are movably arranged on the bottom plate in a symmetrical mode, fan-shaped rotary tables are rotatably installed on the height-adjusting carriages, pressing carriages are slidably installed on the fan-shaped rotary tables, distance-adjusting inclined plates are slidably installed on the pressing carriages and the fan-shaped rotary tables in a symmetrical mode, clamping strip plates one are fixedly arranged at the ends of the distance-adjusting inclined plates, the double fixing mechanism effectively restrains the warping displacement of the plate during laser heat input, thereby guaranteeing the dimensional accuracy of the weld forming, and the plate can be lifted, translated and angularly deflected in a three-dimensional space, so that the two plates can be precisely jointed and welded at any specified angle.

Description

Technical Field

[0001] This invention relates to the field of laser welding equipment technology, and in particular to a laser welding and forming device for aluminum alloy plates. Background Technology

[0002] Aluminum alloys, due to their low density, high specific strength, and good corrosion resistance, are widely used in lightweight manufacturing fields such as aerospace, rail transportation, and new energy vehicles. However, aluminum alloys themselves have characteristics such as high thermal conductivity, large coefficient of linear expansion, and low surface tension in the molten state, making them highly susceptible to significant warping deformation and lateral shrinkage during laser welding due to heat input. Existing laser welding fixtures mostly use single-point clamping or peripheral clamping methods. For thin or medium-thick aluminum alloy plates, this single fixing mechanism is difficult to effectively suppress transient displacement caused by welding thermal cycles, leading to decreased weld alignment accuracy, uneven weld gaps, and consequently, welding defects such as poor weld formation, porosity, undercut, and even burn-through. Furthermore, aluminum alloy components often need to be spliced ​​and welded in a non-horizontal posture or at a specific angle to meet the integrated forming requirements of complex structural parts. Traditional welding fixtures mostly only have in-plane translation adjustment functions and lack the ability to flexibly control the posture of the sheet metal in three-dimensional space. Therefore, this invention provides a laser welding forming device for aluminum alloy sheets. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a laser welding and forming device for aluminum alloy sheets, which overcomes the problems of existing devices being unable to achieve precise three-dimensional spatial orientation adjustment of aluminum alloy sheets and effectively suppress welding thermal deformation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a laser welding forming device for aluminum alloy sheets, comprising a base plate, on which a shifting assembly, a feed cylinder, and a laser welding head are arranged, characterized in that: The base plate is symmetrically equipped with height-adjusting slides, each with a rotatable fan-shaped rotating frame. Each fan-shaped rotating frame has a sliding pressure slide. Both the pressure slide and the fan-shaped rotating frame have symmetrically slidably mounted adjusting ramps. A clamping strip is fixedly mounted at the end of each adjusting ramp. A separation slide is slidably mounted on the pressure slide, and a separation slide is slidably mounted on the fan-shaped rotating frame. Adjusting ramps are symmetrically slidably mounted on both separation slides, and clamping strips are fixedly mounted at the end of each adjusting strip. A linkage strip is provided between clamping strip and its corresponding clamping strip. Clamping strips are used to clamp and fix the sheet metal. Positioning strips are also symmetrically and movably mounted on both sides of the base plate, used to adjust the position of the sheet metal.

[0005] Furthermore, a symmetrical sliding plate is mounted on the base plate, and an adjustment screw is provided between the base plate and the adjustment plate. A height adjustment carriage is slidably mounted on the adjustment plate, and a height adjustment screw is provided between the height adjustment carriage and the adjustment plate.

[0006] Furthermore, symmetrically fixed fan-shaped strips are provided on the adjustment slide plate, and the axes of the two fan-shaped strips on the same adjustment slide plate are on the same straight line. The two ends of the fan-shaped rotating frame are respectively rotatably connected to the corresponding fan-shaped strips.

[0007] Furthermore, a sector rack is fixedly installed on both sides of the sector-shaped rotating frame. The axes of the sector rack and the corresponding sector plate are on the same straight line. A shift gear is rotatably installed on each sector plate. The shift gear and the corresponding sector rack mesh to form a gear pair. A linkage group is set between the two shift gears corresponding to the same sector rotating frame.

[0008] Furthermore, a double-ended threaded screw is provided between the two corresponding adjustable inclined plates, and a downward screw is symmetrically provided between the downward sliding frame and the fan-shaped rotating frame. A transmission group is provided between the two downward screws corresponding to the same fan-shaped rotating frame.

[0009] Furthermore, the upper surfaces of the two clamping plates 1 and 2 on the same sector-shaped rotating frame are on the same plane, and the upper surfaces of the two clamping plates 1 and 2 on the same downward sliding frame are on the same plane.

[0010] Furthermore, a linkage slide is slidably installed on the separation slide one, and the linkage slide and the lowering slide are slidably engaged. The two adjusting strips corresponding to the same lowering slide are slidably connected to the linkage slide. Separation screws are symmetrically arranged between separation slide one and the lowering slide, as well as between separation slide two and the fan-shaped rotating frame. A transmission group three is arranged between the two corresponding separation screws.

[0011] Furthermore, the linkage strip plates are fixedly connected to the corresponding adjustable inclined plates, and the linkage strip plates are also slidably connected to the corresponding adjustable strip plates.

[0012] Furthermore, a positioning slide is symmetrically slidably installed on the base plate, a positioning screw is provided between the positioning slide and the base plate, and two positioning strips on the same side as the positioning slide are symmetrically slidably installed on the positioning slide, with a double-ended threaded screw provided between the corresponding two positioning strips.

[0013] The beneficial effects of this invention compared with the prior art are as follows: (1) By setting up a height adjustment slide and a fan-shaped rotating frame, this invention realizes the lifting, translation and angle deflection of the plate in three-dimensional space, thereby enabling two plates to be precisely joined and welded at any specified angle. (2) By setting up corresponding clamping strips, this invention effectively suppresses the warping displacement of the plate during laser heat input through a double fixing mechanism, thereby ensuring the dimensional accuracy of the weld formation. (3) By setting up a linkage strip, a linkage slide and multiple sets of transmission belts, this invention can force the upper surfaces of multiple clamping strips to always remain on the same plane when adjusting the clamping spacing or separation action, thereby eliminating the plate twisting and suspension caused by the cumulative error of multiple power sources, ensuring stable clamping and a flat plate surface without additional stress. (4) By setting up positioning strips, this invention can push and center the plate laterally before welding, accurately adjust the length of the plate edge extending beyond the support surface, thereby quickly calibrating the docking position of the splicing gap. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a front view of the overall structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the adjusting slide plate of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the fan-shaped strip in this invention.

[0018] Figure 5 This is a schematic diagram of the structure of the transmission pulley in this invention.

[0019] Figure 6 This is a schematic diagram of the structure of the fan-shaped rotating frame of the present invention.

[0020] Figure 7 This is a schematic diagram of the structure of one part of the clamping strip of the present invention.

[0021] Figure 8 This is a schematic diagram of the structure of the lower slide of the present invention.

[0022] Figure 9 This is a schematic diagram of the structure of the two clamping strips of the present invention.

[0023] Figure 10 This is a schematic diagram of the structure of the shifting gear in this invention.

[0024] Figure 11 This is a front view of one structure of the clamping strip of the present invention.

[0025] Reference numerals: 101-Base plate; 102-Shifting assembly; 103-Feed electric cylinder; 104-Laser welding head; 105-Positioning slide; 106-Positioning screw; 107-Positioning motor one; 108-Adjusting slide plate; 109-Adjusting screw; 110-Adjusting motor; 111-Positioning strip; 112-Clamping strip one; 113-Double-ended threaded screw one; 114-Positioning motor two; 115-Height adjustment motor; 116-Height adjustment slide; 117-Height adjustment screw; 118-Sector-shaped strip; 119-Transmission pulley; 120-Transmission assembly one; 121-Transmission long shaft ; 122-Shifting motor; 123-Pressing slide; 124-Separation slide one; 125-Separation slide two; 126-Clamping strip two; 127-Fan-shaped rotating frame; 128-Fan-shaped rack; 129-Double-ended threaded screw two; 130-Adjustable pitch plate; 131-Linkage long strip plate; 132-Supporting long plate; 133-Pressing screw; 134-Pressing motor; 135-Transmission group two; 136-Separation screw; 137-Separation motor; 138-Linkage slide; 139-Adjustable pitch strip plate; 140-Transmission group three; 141-Shifting gear; 142-Adjustable pitch motor. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] Example: Reference Figures 1-11 A laser welding forming device for aluminum alloy sheets includes a base plate 101. The base plate 101 is equipped with a shifting assembly 102, a feed cylinder 103, and a laser welding head 104. The shifting assembly 102 includes an auxiliary support plate, an auxiliary lead screw, an auxiliary slide, and an auxiliary motor. The auxiliary support plate is fixedly mounted on the base plate 101, the auxiliary lead screw is rotatably mounted on the auxiliary support plate, the auxiliary motor is fixedly mounted on the auxiliary support plate, and the auxiliary slide is slidably mounted on the auxiliary support plate. The output shaft of the auxiliary motor is fixedly connected to the auxiliary lead screw, and the auxiliary slide and the auxiliary lead screw form a helical pair. The feed cylinder 103 is fixedly mounted on the auxiliary slide, and the laser welding head 104 is fixedly mounted on the lower end of the piston rod of the feed cylinder 103. The position of the laser welding head 104 is adjusted by the shifting assembly 102 and the feed cylinder 103, and laser welding of the sheet metal is achieved by the laser welding head 104.

[0028] A height adjustment slide 116 is symmetrically and movably arranged on the base plate 101. A position adjustment slide 108 is symmetrically and slidably mounted on the base plate 101. A position adjustment screw 109 is arranged between the base plate 101 and the position adjustment slide 108. The position adjustment screw 109 is rotatably mounted on the base plate 101. The position adjustment screw 109 and the position adjustment slide 108 form a helical pair. A position adjustment motor 110 is fixedly mounted on the base plate 101. The output shaft of the position adjustment motor 110 is fixedly connected to the position adjustment screw 109. When the position adjustment motor 110 is started, it drives the position adjustment screw 109 to rotate, which causes the position adjustment slide 108 to move laterally relative to the base plate 101. The components on the position adjustment slide 108 move synchronously. The axes of the two position adjustment screws 109 are on the same straight line. The height adjustment slide 116 is slidably mounted on the position adjustment slide 108. A height adjustment screw 117 is provided between the height adjustment slide 116 and the position adjustment slide 108. The height adjustment screw 117 is rotatably mounted on the position adjustment slide 108. The height adjustment screw 117 and the height adjustment slide 116 form a helical pair. A height adjustment motor 115 is fixedly mounted on the position adjustment slide 108. The output shaft of the height adjustment motor 115 is fixedly connected to the height adjustment screw 117. When the height adjustment motor 115 is started, it drives the height adjustment screw 117 to rotate, which causes the height adjustment slide 116 to move up and down relative to the position adjustment slide 108. The components on the height adjustment slide 116 move synchronously.

[0029] Each height adjustment slide 116 is rotatably mounted with a sector-shaped rotating frame 127. A sector-shaped strip 118 is symmetrically fixed on the adjustment slide 108. The axes of the two sector-shaped strips 118 on the same adjustment slide 108 are on the same straight line. The two ends of the sector-shaped rotating frame 127 are rotatably connected to the corresponding sector-shaped strip 118. A sector-shaped rack 128 is fixedly mounted on both sides of the sector-shaped rotating frame 127. The axes of the sector-shaped rack 128 and the corresponding sector-shaped strip 118 are on the same straight line. A shift gear 141 is rotatably mounted on each sector-shaped strip 118. The shift gear 141 and the corresponding sector-shaped rack 128 mesh to form a gear pair. A linkage group is provided between the two shift gears 141 corresponding to the same sector-shaped rotating frame 127. The linkage group includes a transmission group 120 and two transmission shafts 121. The transmission group 120 is rotatably mounted on the adjustment slide plate 108. The transmission shaft 121 includes a belt and two transmission pulleys 119. The two transmission pulleys 119 in the same linkage group are respectively fixedly mounted on the transmission group 120 and the corresponding shift gear 141. The belt is arranged between the two corresponding transmission pulleys 119. A shift motor 122 is fixedly mounted on the side of the adjustment slide plate 108. The output shaft of the shift motor 122 is fixedly connected to the transmission group 120.

[0030] The starting of the shifting motor 122 drives the transmission group 120 to rotate. Under the action of the two linkage groups, the two shifting gears 141 on the same shifting slide 108 rotate synchronously. Then, under the action of the sector rack 128, the sector rotating frame 127 rotates relative to the axis of the sector strip 118.

[0031] Each sector-shaped rotating frame 127 is slidably mounted with a pressing slide 123. A pressing screw 133 is symmetrically arranged between the pressing slide 123 and the sector-shaped rotating frame 127. The pressing screw 133 is rotatably mounted on the corresponding sector-shaped rotating frame 127. The pressing screw 133 and the corresponding pressing slide 123 form a helical pair. A transmission group 2 135 is arranged between the two pressing screws 133 corresponding to the same sector-shaped rotating frame 127. The transmission group 2 135 includes a belt and two pulleys. The two pulleys in the transmission group 2 135 are respectively fixedly mounted on the corresponding pressing screw 133. The belt in the transmission group 2 135 is arranged between the two corresponding pulleys. A pressing motor 134 is also fixedly mounted on the sector-shaped rotating frame 127. The output shaft of the pressing motor 134 is fixedly connected to the corresponding pressing screw 133. The starting motor 134 drives the corresponding pressing screw 133 to rotate. Under the action of the transmission group 135, the two pressing screws 133 rotate synchronously, thereby causing the pressing slide 123 to move up and down relative to the fan-shaped rotating frame 127.

[0032] Adjustable ramps 130 are symmetrically slidably mounted on both the lower slide 123 and the fan-shaped rotating frame 127. The adjustable ramps 130 are inclined. The end of the adjustable ramp 130 on the lower slide 123 that is closest to the lower surface of the base plate 101 is located at the position closest to another adjusting slide plate 108. The end of the adjustable ramp 130 on the fan-shaped rotating frame 127 that is farthest from the lower surface of the base plate 101 is located at the position closest to another adjusting slide plate 108. A clamping strip is fixedly provided at the end of the adjustable ramp 130. A double-ended threaded screw 129 is provided between the two corresponding adjustable inclined plates 130 on plate 112. The double-ended threaded screw 129 is rotatably mounted on the corresponding lower slide 123 and fan-shaped rotating frame 127. The threads at both ends of the double-ended threaded screw 129 form a helical pair with the corresponding adjustable inclined plates 130. An adjustable motor 142 is also fixedly mounted on both the lower slide 123 and the fan-shaped rotating frame 127. The output shaft of the adjustable motor 142 is fixedly connected to the corresponding double-ended threaded screw 129. When the adjustable motor 142 is started, it drives the double-ended threaded screw 129 to rotate, causing the two corresponding adjustable inclined plates 130 to move closer to each other or further apart. The clamping plates 112 on the adjustable inclined plates 130 move synchronously, thus adjusting the distance between the two clamping plates 112 corresponding to the lower slide 123 or the fan-shaped rotating frame 127.

[0033] A first separation slide 124 is slidably mounted on the lower slide 123, and a second separation slide 125 is slidably mounted on the fan-shaped rotating frame 127. Adjustable spacing strips 139 are symmetrically slidably mounted on both the first separation slide 124 and the second separation slide 125. A second clamping strip 126 is fixedly provided at the end of the adjustable spacing strip 139. The first clamping strip 112 and the second clamping strip 126 are used to clamp and fix the plate. The upper surfaces of the two first clamping strips 112 and the two second clamping strips 126 on the same fan-shaped rotating frame 127 are on the same plane. The upper surfaces of the two first clamping strips 112 and the two second clamping strips 126 on the same lower slide 123 are on the same plane.

[0034] Separating screws 136 are symmetrically arranged between the separating slide 124 and the lowering slide 123, and between the separating slide 2 125 and the fan-shaped rotating frame 127. The separating screws 136 are rotatably mounted on the corresponding lowering slide 123 and the fan-shaped rotating frame 127, respectively. The separating screws 136 form a helical pair with the corresponding separating slide 124 and the separating slide 2 125, respectively. A transmission group 3 140 is arranged between the two corresponding separating screws 136. The transmission group 3 140 includes a belt and two pulleys. The two pulleys in the transmission group 3 140 are fixedly mounted on the corresponding separating screws 136, and the belt in the transmission group 3 140 is arranged between the two corresponding pulleys. Separating motors 137 are also fixedly mounted on the lowering slide 123 and the fan-shaped rotating frame 127. The output shaft of the separating motor 137 is fixedly connected to the corresponding separating screw 136. The starting separation motor 137 drives the corresponding separation screw 136 to rotate. Under the action of the transmission group three 140, the two separation screws 136 rotate synchronously, thereby causing the separation slide one 124 to move away from the pressing slide 123 or the separation slide two 125 to move away from the fan-shaped rotating frame 127. The components on the separation slide one 124 and the separation slide two 125 move synchronously.

[0035] A linkage long strip 131 is provided between the clamping strip 2 126 and the corresponding clamping strip 1 112. The linkage long strip 131 is fixedly connected to the corresponding adjusting inclined plate 130. The linkage long strip 131 is also slidably connected to the corresponding adjusting strip 139. A linkage slide 138 is slidably installed on the separation slide 1 124. The linkage slide 138 and the pressing slide 123 are slidably engaged. The two adjusting strips 139 corresponding to the same pressing slide 123 are slidably connected to the linkage slide 138. A support long plate 132 is also symmetrically fixed on the pressing slide 123. The two ends of the linkage slide 138 are slidably engaged with the corresponding support long plate 132.

[0036] When the downward slide 123 moves downward relative to the fan-shaped rotating frame 127, under the action of the linkage long plate 131 and the support long plate 132, the two adjusting strips 139 and the two clamping strips 126 corresponding to the downward slide 123 move downward synchronously, so that the linkage slide 138 slides downward relative to the separation slide 124. When the separation slide 124 or the separation slide 125 moves relative to the fan-shaped rotating frame 127, the adjusting strip 139 slides relative to the linkage long plate 131. When the double-ended threaded screw 129 adjusts the distance between the two adjusting inclined plates 130, under the action of the linkage long plate 131, the adjusting strip 139 slides relative to the linkage slide 138 or relative to the separation slide 125.

[0037] Positioning strips 111 are symmetrically and movably arranged on both sides of the base plate 101. The positioning strips 111 are used to adjust the position of the plate. Positioning slides 105 are symmetrically and slidably installed on the base plate 101. A positioning screw 106 is provided between the positioning slide 105 and the base plate 101. The positioning screw 106 is rotatably installed on the base plate 101. The positioning slide 105 and the positioning screw 106 form a helical pair. A positioning motor 107 is also fixedly installed on the base plate 101. The output shaft of the positioning motor 107 is fixedly connected to the positioning screw 106. When the positioning motor 107 is started, it drives the positioning screw 106 to rotate, which causes the positioning slide 105 to move relative to the base plate 101. The axes of the positioning motor 107 and the adjusting screw 109 are on the same straight line. Two positioning plates 111 on the same side as the positioning slide 105 are symmetrically slidably mounted on the positioning slide 105. A double-ended threaded screw 113 is provided between the two corresponding positioning plates 111. The double-ended threaded screw 113 is rotatably mounted on the positioning slide 105. The threads at both ends of the double-ended threaded screw 113 form a helical pair with the corresponding positioning plates 111. A positioning motor 2 114 is also fixedly mounted on the positioning slide 105. The output shaft of the positioning motor 2 114 is fixedly connected to the double-ended threaded screw 113. When the positioning motor 2 114 is started to drive the double-ended threaded screw 113 to rotate, the two positioning plates 111 on the same positioning slide 105 can move towards each other or away from each other.

[0038] Initially, both clamping strip 112 and clamping strip 126 are horizontal. The height adjustment motor 115 is activated to adjust the position of the height adjustment slide 116, ensuring that the upper surface of clamping strip 112 and the lower end face of positioning strip 111 on the fan-shaped rotating frame 127 are on the same plane. The plate to be welded is then placed on the support plane formed by the two clamping strips 112 and 126 on the fan-shaped rotating frame 127. The double-ended threaded screw 113 is then activated to move the two positioning strips 111 closer together. Under the action of the two positioning strips 111, the plate is positioned in the middle of the support plane, and the plate is clamped. Then, the positioning motor 107 is activated to adjust the position of the positioning slide 105. Under the action of the two positioning strips 111, the plate moves synchronously, thus adjusting its position on the support plane and adjusting the position of the welding point extending beyond the support plane.

[0039] Working principle: First, according to the size of the aluminum alloy sheet to be welded, start the pitch adjustment motor 142 to adjust the distance between two adjacent clamping strips 112. Under the action of the linkage long strip 131, the corresponding clamping strip 126 moves synchronously. Start the separation motor 137 to adjust the distance between the clamping strip 126 and the corresponding clamping strip 112, so that the clamping strip 112 and the clamping strip 126 can be located in the optimal support and fixation position.

[0040] Then, the two plates to be welded are placed on the support planes of the two fan-shaped rotating frames 127 respectively. Then, the positioning motor 107 and the positioning motor 114 are started. Under the action of the positioning strip 111, the plates are first moved to the center position of the support plane, and then the position of the plate welding position extending out of the support plane is adjusted. After the plate position is adjusted, the pressing motor 134 is started to move the pressing slide 123 downward, which in turn moves the support plane on the pressing slide 123 downward. The clamping strips 112 and 126 corresponding to the pressing slide 123 contact the upper surface of the plate, thus achieving clamping and fixing of the plate. At this time, the positioning strip 111 is returned to the initial position.

[0041] Then, the adjustment motor 110, the height adjustment motor 115, and the shifting motor 122 are started to adjust the overall position of the downward sliding frame 123 and the fan-shaped rotating frame 127. Under the action of the clamping strip 112 and the clamping strip 2 126, the plates move synchronously, that is, the position of the plates is adjusted so that the two plates can be joined and welded at a specified angle, and the welding position of the plates is located directly below the laser welding head 104. Then, the position of the laser welding head 104 is adjusted by the shifting group 102 and the feed electric cylinder 103, so that the two plates can be welded together by the laser welding head 104.

[0042] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A laser welding forming device for aluminum alloy sheets, comprising a base plate (101), wherein a shifting assembly (102), a feed cylinder (103), and a laser welding head (104) are disposed on the base plate (101), characterized in that: The base plate (101) is symmetrically and movably provided with height adjustment slides (116), each of which is rotatably mounted with a fan-shaped rotating frame (127). Each of the fan-shaped rotating frames (127) is slidably mounted with a pressure slide (123). Both the pressure slide (123) and the fan-shaped rotating frame (127) are symmetrically and slidably mounted with adjustable distance ramps (130). The ends of the adjustable distance ramps (130) are fixedly provided with clamping strips (112). A separation slide (124) is slidably mounted on the pressure slide (123), and a separation slide (125) is slidably mounted on the fan-shaped rotating frame (127). Adjustable strips (139) are symmetrically slidably installed on both the first (124) and the second (125) of the separation slide. A clamping strip (26) is fixedly installed at the end of the adjustable strip (139). A linkage strip (131) is provided between the clamping strip (2) and the corresponding clamping strip (112). The clamping strip (112) and the clamping strip (26) are used to clamp and fix the plate. A positioning strip (111) is also symmetrically movably installed on both sides of the base plate (101). The positioning strip (111) is used to adjust the position of the plate.

2. The laser welding and forming device for aluminum alloy plates according to claim 1, characterized in that: The base plate (101) is symmetrically and slidably mounted with an adjustment slide plate (108), and an adjustment screw (109) is provided between the base plate (101) and the adjustment slide plate (108). The height adjustment slide (116) is slidably mounted on the adjustment slide plate (108), and a height adjustment screw (117) is provided between the height adjustment slide (116) and the adjustment slide plate (108).

3. The laser welding and forming device for aluminum alloy plates according to claim 2, characterized in that: The adjusting slide plate (108) is symmetrically fixed with fan-shaped strips (118). The axes of the two fan-shaped strips (118) on the same adjusting slide plate (108) are on the same straight line. The two ends of the fan-shaped rotating frame (127) are respectively rotatably connected to the corresponding fan-shaped strips (118).

4. The laser welding and forming device for aluminum alloy plates according to claim 3, characterized in that: Both sides of the fan-shaped rotating frame (127) are fixedly installed with fan-shaped racks (128). The axes of the fan-shaped racks (128) and the corresponding fan-shaped plates (118) are on the same straight line. The fan-shaped plates (118) are rotatably installed with shift gears (141). The shift gears (141) and the corresponding fan-shaped racks (128) mesh to form a gear pair. A linkage group is set between the two shift gears (141) corresponding to the same fan-shaped rotating frame (127).

5. The laser welding and forming device for aluminum alloy plates according to claim 1, characterized in that: A double-ended threaded screw (129) is provided between the two corresponding adjustable sloping plates (130), and a downward screw (133) is symmetrically provided between the downward sliding frame (123) and the fan-shaped rotating frame (127). A transmission group (135) is provided between the two downward screws (133) corresponding to the same fan-shaped rotating frame (127).

6. The laser welding and forming device for aluminum alloy plates according to claim 1, characterized in that: The upper surfaces of the two clamping strips 1 (112) and the two clamping strips 2 (126) on the same sector-shaped rotating frame (127) are on the same plane, and the upper surfaces of the two clamping strips 1 (112) and the two clamping strips 2 (126) on the same downward sliding frame (123) are on the same plane.

7. The laser welding and forming device for aluminum alloy plates according to claim 1, characterized in that: A linkage slide (138) is slidably installed on the separation slide (124). The linkage slide (138) and the pressing slide (123) are slidably engaged. The two adjusting strips (139) corresponding to the same pressing slide (123) are slidably connected to the linkage slide (138). Separation screws (136) are symmetrically arranged between the separation slide (124) and the pressing slide (123) and between the separation slide (125) and the fan-shaped rotating frame (127). A transmission group three (140) is arranged between the two corresponding separation screws (136).

8. The laser welding and forming device for aluminum alloy plates according to claim 7, characterized in that: The linkage strip plate (131) is fixedly connected to the corresponding adjustable inclined plate (130), and the linkage strip plate (131) is also slidably connected to the corresponding adjustable strip plate (139).

9. The laser welding and forming device for aluminum alloy plates according to claim 1, characterized in that: A positioning slide (105) is symmetrically slidably installed on the base plate (101). A positioning screw (106) is provided between the positioning slide (105) and the base plate (101). Two positioning strips (111) on the same side as the positioning slide (105) are symmetrically slidably installed on the positioning slide (105). A double-headed threaded screw (113) is provided between the two corresponding positioning strips (111).

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