Sheet metal machining welding equipment and method

Abstract

The invention relates to the field of laser welding, in particular to sheet metal machining welding equipment and method. The device comprises a clamping device, a rotating mechanism and a laser welding robot, the clamping device comprises four connecting pieces distributed at the four corners of a rectangle, moving cylinders located between every two adjacent connecting pieces, two sliding rods which are perpendicularly distributed on each connecting piece and are in sliding connection with every two adjacent moving cylinders correspondingly, vertical plates vertically arranged on the moving cylinders, and pressing pieces for pressing the plates on the vertical plates. The adjusting assembly is used for rotating the pressing piece towards or away from the vertical plates so as to press or loosen the plate, the adjusting mechanism is used for adjusting the side length size of a rectangle externally connected with the four vertical plates, the pressing piece is provided with a first cylinder part which is rotationally arranged on the moving cylinder and used for abutting against the bottom end of the plate, and the center axis of the first cylinder part is located under the vertical plane of the outer side of the moving cylinder; and the cylindrical part is used for positioning the bottom end of the plate and lifting the plate. According to the clamping device, plates of different sizes can be stably clamped, and the welding effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of laser welding, and in particular to sheet metal processing welding equipment and a method. Background Art

[0002] For sheet metal, sometimes it is necessary to process the sheet into a shell, which can be used as the shell of related equipment or other purposes. Welding is a common processing method that can weld multiple sheets into a shell and is widely used in the sheet metal processing industry.

[0003] Chinese patent announcement number CN219684397U discloses a large sheet metal shell welding device, including a welding table, a stepped groove is provided on the top of the welding table, a top plate is connected in a liftable and rotatable manner in the stepped groove, and a plurality of support plates are hinged on the outer wall of the welding table, a slide groove is provided on the support plate, a screw rod is rotatably connected inside the slide groove, a slider is threadedly connected on the outer side of the screw rod, a clamping plate is fixedly installed on the top of the slider, and a support assembly for supporting the support plate is provided on the welding table. A support plate is hinged on the outer wall of the welding table, and a support assembly, a slide groove, a slider, a screw rod and a clamping plate are provided in combination. When in use, the support plate is horizontally opened by the support assembly, and then the screw rod is rotated, and the screw rod pushes the slider and the clamping plate to move left and right, so that the sheet metal parts can be fixedly clamped.

[0004] However, the above technical solution has the following shortcomings: for the rectangular cylindrical shell formed by welding four plates, the plates are placed vertically and are prone to tilting inward or even falling over. The four clamps cannot stably clamp the four plates and the welding effect cannot be guaranteed. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to propose a sheet metal processing welding device and method, which can stably clamp plates of different sizes and ensure the welding effect.

[0006] On the one hand, the present invention proposes a sheet metal processing and welding equipment, including a clamping device, a rotating mechanism and a laser welding robot. The clamping device includes four connecting parts distributed at the four corners of a rectangle, a moving cylinder located between two adjacent connecting parts, two sliding rods vertically distributed on each connecting part and respectively slidably connected with two adjacent moving cylinders, a vertical plate vertically arranged on the moving cylinder, a clamping member for pressing the plate on the vertical plate, an adjusting component for rotating the clamping member toward or away from the vertical plate to clamp or loosen the plate, and an adjusting mechanism for adjusting the side length of a rectangle circumscribed by the four vertical plates. The clamping member has a cylindrical portion rotatably arranged on the moving cylinder and for the bottom end of the plate to abut against, the central axis of the cylindrical portion is located directly below the vertical plane outside the moving cylinder, and the cylindrical portion positions and lifts the bottom end of a pair of plates; the rotating mechanism drives the clamping device to rotate horizontally; the laser welding robot welds the joints of each two adjacent plates along the vertical direction.

[0007] Preferably, a top end of the cylindrical portion contacts the bottom edge of the vertical plane outside the moving cylinder.

[0008] Preferably, the clamping member includes plate portion one, plate portion two and plate portion three which are connected in sequence, plate portion two and plate portion three are distributed in a V shape, cylindrical portion one is located at the connection between plate portion one and plate portion two, and the top end of plate portion three has cylindrical portion two facing the vertical plate, and plate portion two and plate portion three leave space relative to the vertical plate for the plate to be placed in.

[0009] Preferably, the adjustment assembly includes a threaded knob rotatably arranged at the bottom end of the moving cylinder, a lifting platform threadably connected to the threaded knob, and a connecting piece rotatably connected to the lifting platform and the plate portion.

[0010] Preferably, the adjustment mechanism includes a mounting column and two groups of telescopic components, the two groups of telescopic components are offset up and down and distributed vertically in the projection direction, the telescopic components include a bidirectional screw rod rotatably arranged on the mounting column, two connecting tubes respectively arranged on two opposite vertical plates, and a power component for driving the bidirectional screw rod to rotate, the bidirectional screw rod has a threaded portion one and a threaded portion two with opposite thread rotation directions and are respectively threadedly connected to the two connecting tubes.

[0011] Preferably, the rotating mechanism includes a base, a rotating shaft rotatably arranged on the base, and a driving assembly arranged on the base and driving the rotating shaft to rotate, and the mounting column is arranged at the top end of the rotating shaft.

[0012] Preferably, the connecting piece is an L-shaped corner piece, and two adjacent moving cylinders are provided with laser ranging heads facing the two ends of the same corner piece, and the two laser ranging heads are oriented vertically. In the initial state, the length of the inner rectangle enclosed by the four plates clamped by the clamping device is a, and the width is b. The distances measured by the two laser ranging heads are m and n respectively. When the side length of the rectangle needs to be adjusted to length A and width B, the distances measured by the two laser ranging heads are M and N respectively, then A=a+2(Mm), B=b+2(Nn), and M=0.5(Aa), N=0.5(Bb) are obtained.

[0013] On the other hand, the present invention provides a sheet metal processing welding method, which is implemented by the sheet metal processing welding equipment mentioned above, and the welding method comprises the following steps:

[0014] S1. According to the size of the finished rectangular cylindrical structure to be welded, the side length of the circumscribed rectangle of the four vertical plates is adjusted by the adjustment mechanism so that the four plates are respectively placed in contact with the outer side surfaces of the four vertical plates;

[0015] S2. The pressing member is rotated toward the vertical plate through the adjusting assembly, and the pressing member presses the plate on the vertical plate, and the horizontal positions of the four plates are adjusted, and the edges of the four plates are butted, and the pressing member is further pressed on the vertical plate through the adjusting assembly to fix the four plates;

[0016] S3, the rotating mechanism drives the clamping device to rotate horizontally, and rotates the four joints of the four plates to the welding area in turn, and each time the laser welding robot is used to weld the joints of the plates along the vertical direction;

[0017] S4. After laser welding is completed, the pressing piece is turned away from the vertical plate by adjusting the assembly, and the finished rectangular cylindrical structure obtained by welding is removed upward.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The present invention can stably clamp plates of different sizes to ensure the welding effect. Before clamping, multiple vertical plates are adjusted to the target position according to the size of the rectangular cylindrical finished shell to be welded, and the circumscribed rectangle of the multiple vertical plates is adapted to the inner rectangle of the rectangular cylindrical finished shell, so that it can be suitable for welding rectangular cylindrical finished shells of different sizes. The clamping piece is rotated inward by the adjustment component, and the accurately placed plate is clamped by the clamping piece. The laser welding robot performs precise laser welding at the joint of the plate to process the rectangular cylindrical finished shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic structural diagram of a clamping device in Embodiment 1 of the present invention;

[0022] Figure 3 A partial structural cross-sectional view showing a pressing member pressing a plate against a vertical plate;

[0023] Figure 4 It is a structural schematic diagram of a pressing member;

[0024] Figure 5 This is a schematic diagram of the structure of a clamping device in Embodiment 2 of the present invention;

[0025] Figure 6 for Figure 5 A partial structural cross-sectional view;

[0026] Figure 7 for Figure 6 A magnified view of the structure at center A;

[0027] Figure 8 This is a top view schematic diagram of the second embodiment of the present invention, which is driven by the third motor to adjust and adapt to clamp plates of different sizes;

[0028] Fig. 9 This is a top view schematic diagram of the second embodiment of the present invention, which uses the fourth motor drive to adjust and adapt to clamp plates of different sizes.

[0029] Figure numerals: 1, base; 2, rotating shaft; 3, motor 1; 4, gear 1; 5, gear 2; 6, mounting column; 7, angle piece; 8, slide bar; 9, moving cylinder; 10, vertical plate; 11, pressing piece; 111, plate part 1; 112, plate part 2; 1121, cylindrical part 1; 113, plate part 3; 1131, cylindrical part 2; 12, connecting piece; 13, lifting platform; 14, threaded knob; 15, connecting cylinder; 16, Bidirectional screw; 17. Motor 2; 18. Laser ranging head; 19. Laser welding robot; 20. Rotating frame; 21. Mounting shaft; 22. Bracket 1; 23. Bracket 2; 24. Adjustment cylinder; 25. Motor 3; 26. Bevel gear 1; 27. Bevel gear 2; 28. Screw 1; 29. ​​Motor 4; 30. Guide cylinder; 31. Sliding column; 32. Screw 2; 33. Fixed cylinder; 34. Light rod 1; 35. Light rod 2. DETAILED DESCRIPTION

[0030] Embodiment 1

[0031] like Figure 1-Figure 4 As shown, a sheet metal processing and welding device proposed in this embodiment includes a clamping device, a rotating mechanism and a laser welding robot 19.

[0032] The clamping device includes four connecting members distributed at the four corners of the rectangle, a moving cylinder 9 located between two adjacent connecting members, two sliding rods 8 distributed perpendicularly to each other on each connecting member and slidably connected to two adjacent moving cylinders 9 respectively, a vertical plate 10 vertically arranged on the moving cylinder 9, a pressing member 11 for pressing the plate on the vertical plate 10, an adjustment component for rotating the pressing member 11 toward or away from the vertical plate 10 to press or loosen the plate, and an adjustment mechanism for adjusting the side length of the circumscribed rectangle of the four vertical plates 10. The outer side surface of the vertical plate 10 is a vertical plane, which is distributed in the middle of the side of the circumscribed rectangle and is used for the plate to abut against, and the pressing member 11 presses the plate on the vertical plane.

[0033] like Figure 3 and Figure 4 As shown, the pressing member 11 includes a plate portion 111, a plate portion 2 112 and a plate portion 3 113 which are connected in sequence. The plate portion 2 112 and the plate portion 3 113 are distributed in a V shape, and the plate portion 2 112 and the plate portion 3 113 leave a space for the plate to be placed relative to the vertical plate 10, that is, a space is left between the pressing member 11 and the vertical plate 10, when the pressing member 11 is opened, it is enough to place the plate, and when the pressing member 11 is rotated inward, the plate can be effectively pressed against the vertical plate 10.

[0034] The connection between plate part 111 and plate part 2 112 is provided with a cylindrical part 1121, which is rotatably arranged on the moving cylinder 9 and abutted by the bottom end of the plate. The central axis of the cylindrical part 1121 is located directly below the vertical plane outside the moving cylinder 9, and the cylindrical part 1121 positions the bottom end of the plate and lifts the plate.

[0035] like Figure 3 As shown, the top of the cylindrical part 1121 contacts the bottom edge of the vertical plane outside the moving cylinder 9. After the plate is placed in place, the inner edge of the bottom end of the plate contacts the cylindrical part 1121. When the pressing member 11 rotates inward to press the plate, the cylindrical part 1121 rotates synchronously, and the cylindrical part 1121 maintains contact with the inner edge of the bottom end of the plate to position the plate when it is placed. Because the top of the cylindrical part 1121 is supported at the inner edge of the bottom end of the plate, it can be used to position plates of different thicknesses. After the plate is fixed by the clamping device, the bottom end of the plate is flush with the bottom end of the moving cylinder 9, which is conducive to the regular clamping of the plate.

[0036] The top of the plate portion 113 has a cylindrical portion 1131 facing the vertical plate 10 . The cylindrical portion 1131 is pressed against the outer surface of the plate so as not to scratch the plate.

[0037] like Figure 3 and Figure 4 As shown, the adjustment assembly includes a threaded knob 14 rotatably arranged at the bottom end of the moving cylinder 9, a lifting platform 13 threadably connected to the threaded knob 14, and a connecting member 12 rotatably connected to the lifting platform 13 and the plate portion 111. The lifting platform 13 can be driven to rise and fall by rotating the threaded knob 14, and the lifting platform 13 drives the pressing member 11 to rotate through the connecting member 12, and the pressing member 11 is rotated inwardly or outwardly to realize the pressing and loosening of the plate.

[0038] like Figure 2 As shown, the adjustment mechanism includes a mounting column 6 and two groups of telescopic components, which are offset up and down and vertically distributed in the projection direction. The telescopic component includes a bidirectional screw 16 rotatably arranged on the mounting column 6, two connecting tubes 15 respectively arranged on two opposite vertical plates 10, and a power component that drives the bidirectional screw 16 to rotate. The power component includes a motor 2 17, a gear 3 and a gear 4. The motor 2 17 is arranged on the mounting column 6, drives the gear 3 to rotate, and the gear 3 drives the meshing gear 4 to rotate. The gear 4 is arranged on the bidirectional screw 16 and can drive the bidirectional screw 16 to rotate forward and reverse. The bidirectional screw 16 has a threaded portion 1 and a threaded portion 2 with opposite thread rotation directions and are respectively threadedly connected to the two connecting tubes 15. The bidirectional screw 16 can drive the two connecting tubes 15 to move toward or away from each other. At this time, the sliding rod 8 parallel to the bidirectional screw 16 slides on the corresponding moving tube 9.

[0039] like Figure 1 and Figure 2As shown, the rotating mechanism includes a base 1, a rotating shaft 2 rotatably arranged on the base 1, and a driving assembly arranged on the base 1 and driving the rotating shaft 2 to rotate. The mounting post 6 is arranged at the top of the rotating shaft 2. In the rotating mechanism, the driving assembly includes a gear 2 5 arranged on the rotating shaft 2, a motor 1 3 arranged on the base 1, and a gear 1 4 arranged on the output shaft of the motor 1 3. The motor 1 3 drives the gear 1 4 to rotate, and the gear 1 4 meshes with the gear 2 5, which can drive the gear 2 5 to rotate, thereby driving the rotating shaft 2 to rotate, and the rotating shaft 2 drives the mounting post 6 to rotate, that is, the purpose of driving the clamping device to rotate horizontally is achieved.

[0040] The laser welding robot 19 welds the joints of each two adjacent plates in the vertical direction. The four plates are joined in a rectangular shape, with a total of four joints. Each time, one joint is adjusted to the welding area where the laser welding robot 19 can perform welding operations through a rotating mechanism. The laser welding robot 19 is used to weld the four plates into a rectangular cylindrical shell.

[0041] like Figure 2 As shown, the connecting piece is an L-shaped corner piece 7, and two adjacent moving cylinders 9 are provided with laser distance measuring heads 18 facing the two ends of the same corner piece 7, and the two laser distance measuring heads 18 are oriented vertically. In the initial state, the length of the inner rectangle enclosed by the four plates clamped by the clamping device is a, and the width is b. The distances measured by the two laser distance measuring heads 18 are m and n respectively, and a, b, m and n are known. When the side length of the rectangle needs to be adjusted to length A and width B, the distances measured by the two laser distance measuring heads 18 are M and N respectively, then A=a+2(Mm), B=b+2(Nn), and M=0.5(Aa), N=0.5(Bb). When the distances measured by the two laser distance measuring heads 18 are M and N respectively, it indicates that the size of the rectangle is adjusted in place.

[0042] The welding method of the sheet metal processing welding equipment comprises the following steps:

[0043] S1. According to the size of the finished rectangular cylindrical structure to be welded, the side length of the circumscribed rectangle of the four vertical plates 10 is adjusted by the adjustment mechanism, so that the four plates are respectively placed on the outer side surfaces of the four vertical plates 10, and the inner rectangle of the finished rectangular cylindrical structure is consistent with the circumscribed rectangle of the four vertical plates 10;

[0044] S2. The pressing member 11 is rotated toward the vertical plate 10 by adjusting the assembly. The pressing member 11 presses the plate on the vertical plate 10, but does not press it tightly. The horizontal positions of the four plates are adjusted, and the edges of the four plates are butted. The pressing member 11 is further pressed on the vertical plate 10 by adjusting the assembly to fix the four plates.

[0045] S3, the rotating mechanism drives the clamping device to rotate horizontally, and rotates the four joints of the four plates to the welding area in turn. Each time, the laser welding robot 19 is used to weld the joints of the plates along the vertical direction, and the laser welding effect is good;

[0046] S4. After laser welding is completed, the clamping piece 11 is turned away from the vertical plate 10 through the adjustment component, and the finished rectangular cylindrical structure obtained by welding is directly taken down upwards, or the side length of the rectangle circumscribed by the four vertical plates 10 is slightly reduced through the adjustment mechanism, and the four vertical plates 10 are moved inwards to loosen the finished rectangular cylindrical structure, thereby facilitating the removal of the finished rectangular cylindrical structure upwards.

[0047] This embodiment can stably clamp plates of different sizes to ensure the welding effect. Before clamping, adjust the multiple vertical plates 10 to the target position according to the size of the rectangular cylindrical finished shell to be welded, so that the circumscribed rectangle of the multiple vertical plates 10 is adapted to the inner rectangle of the rectangular cylindrical finished shell, so that it can be suitable for welding rectangular cylindrical finished shells of different sizes. Place the four plates on the top of the cylindrical part 1121 of the four clamping members 11 respectively, and fit them with the outer side of the vertical plate 10. Turn the clamping member 11 inward through the adjustment assembly, and use the clamping member 11 to clamp the accurately placed plate. Finally, the laser welding robot 19 performs precise laser welding at the joint of the plates to process a rectangular cylindrical finished shell.

[0048] Embodiment 2

[0049] This embodiment provides a sheet metal processing and welding device. This embodiment is different from the first embodiment, mainly in the connection parts and the adjustment mechanism.

[0050] like Figure 3-Figure 6 As shown, the connecting member includes an adjusting cylinder 24 and two connecting heads rotatably arranged on the adjusting cylinder 24, and the sliding rod 8 is connected to the connecting heads. The two laser distance measuring heads 18 measure the distance toward the two connecting heads.

[0051] The adjusting mechanism comprises a rotating frame 20, a mounting shaft 21, a telescopic mechanism 1, a guiding mechanism 1, a telescopic mechanism 2 and a guiding mechanism 2. The mounting shaft 21 is rotatably arranged on the rotating frame 20, and the rotating frame 20 is arranged on the rotating shaft 2.

[0052] The telescopic mechanism 1 includes a motor 3 25 arranged on the rotating frame 20 and drivingly connected to the mounting shaft 21, a bracket 1 22 rotatably arranged on the mounting shaft 21, a bevel gear 1 26 arranged on the mounting shaft 21, and two sets of connecting components evenly distributed around the bevel gear 1 26. The connecting component includes a screw rod 1 28 rotatably arranged on the bracket 1 22 and a bevel gear 2 27 arranged at one end of the screw rod 1 28, the bevel gear 27 meshes with the bevel gear 1 26, and the screw rod 1 28 is threadedly connected with the adjustment cylinder 24 and extends into the inner side of the adjustment cylinder 24. The two screw rods 1 28 are connected to two diagonally distributed adjustment cylinders 24 in total. The guiding mechanism 1 includes a light rod 1 34 slidably connected to the remaining two diagonally distributed adjustment cylinders 24 and a bracket 2 23 rotatably arranged on the mounting shaft 21, and the two light rods 1 34 are connected to both ends of the bracket 2 23 respectively.

[0053] Telescopic mechanism 1 and guide mechanism 1 are respectively distributed along the two diagonal directions of the circumscribed rectangle of the four vertical plates 10. When it is necessary to adjust the size of the circumscribed rectangle of the vertical plates 10 as a whole along the diagonal direction of the rectangle, start motor 3 25, motor 3 25 drives the installation shaft 21 to rotate, and the installation shaft 21 drives the bevel gear 2 27 to rotate through bevel gear 1 26. The two bevel gears 27 respectively drive the two screw rods 1 28 to rotate in opposite directions. The two screw rods 1 28 push the two diagonally distributed adjustment cylinders 24 away from each other or pull them toward each other. The other two diagonally distributed adjustment cylinders 24 slide on the corresponding light rod 1 34, and the slide rod 8 slides on the moving cylinder 9. According to the following Figure 8 The rectangular size can be adjusted in the form shown, so that the device can be used for clamping and welding plates of different sizes.

[0054] The telescopic mechanism 2 includes a guide cylinder 30 rotatably arranged on the rotating frame 20, a motor 29 arranged on the rotating frame 20, a gear 5 connected to the output end of the motor 29, a gear 6 arranged on the guide cylinder 30 and meshingly connected with the gear 5, and two groups of linkage components symmetrically distributed about the guide cylinder 30. The guide cylinder 30 has a rectangular slideway. The linkage component includes a slide post 31 slidably clamped at the rectangular slideway, a screw rod 2 32 connected to the outer end of the slide post 31, and a fixed cylinder 33 arranged on the vertical plate 10, and the screw rod 2 32 is threadedly connected to the fixed cylinder 33 and extends into the inner side of the fixed cylinder 33. The two fixed cylinders 33 in the two groups of linkage components are respectively arranged on two vertical plates 10 that are relatively distributed. The guide mechanism 2 includes two light rods 2 35 respectively arranged on the remaining two vertical plates 10, and the light rods 2 35 are slidably arranged on the rotating frame 20.

[0055] The telescopic mechanism 2 is distributed along the direction of the midpoints of a set of opposite sides (two opposite sides) of the circumscribed rectangle of the four vertical plates 10, and the guide mechanism 2 is distributed along the direction of the midpoints of the remaining two sides of the rectangle. When the size of the circumscribed rectangle of the vertical plates 10 is adjusted as a whole along the diagonal direction of the rectangle, the bare rod 25 slides on the rotating frame 20, and the slide column 31 slides on the rectangular slideway, which will not cause the telescopic mechanism 2 and the guide mechanism 2 to get stuck.

[0056] When the size of the circumscribed rectangle of the four vertical plates 10 needs to be adjusted along the direction of the line connecting the two midpoints of the rectangle, the motor 4 29 is used to drive the gear 5 to rotate forward and reversely, the gear 5 drives the guide cylinder 30 to rotate through the gear 6, the guide cylinder 30 drives the screw 2 32 to rotate through the slide column 31, the screw 2 32 pushes the two fixed cylinders 33 outward or inward, the four adjustment cylinders 24 rotate around the installation shaft 21 in an "X" shape, the angle changes, the slide bar 8 slides on the moving cylinder 9, as shown in the figure. Fig. 9 The rectangular size is adjusted in the form shown, so that the device can be used for clamping and welding plates of different sizes. During adjustment, the bracket 1 22 rotates, and when the motor 3 25 is not moving and when it is moving, the analysis is as follows:

[0057] 1. If the motor 3 25 does not work, the bevel gear 1 26 will not rotate, and the bevel gear 2 27 will revolve around the bevel gear 1 26 and rotate on its own, causing the screw rod 1 28 to rotate slightly. According to the principle that the telescopic mechanism 1 and the guide mechanism 1 adjust the size of the circumscribed rectangle of the four vertical plates 10, the size of the rectangle will change slightly along the diagonal direction.

[0058] 2. Motor three 25 is activated to drive bevel gear one 26 to rotate, and bevel gear one 26 drives bevel gear two 27 to rotate, eliminating the self-rotation of bevel gear two 27, and only retaining the revolution of bevel gear two 27 around bevel gear one 26. At this time, screw one 28 does not rotate, and the size of the rectangle cannot be adjusted along the diagonal direction.

[0059] 3. Motor three 25 is activated to drive bevel gear one 26 to rotate. Bevel gear one 26 drives bevel gear two 27 to rotate, accelerating the rotation of bevel gear two 27. Bevel gear two 27 retains both revolution and rotation. Screw one 28 rotates, and the size of the rectangle is adjusted along the diagonal direction of the rectangle and the direction of the line connecting the midpoints of the opposite sides.

[0060] In this embodiment, the rectangular size can be adjusted along the diagonal direction of the circumscribed rectangle of the four vertical plates 10 and the direction of the line connecting the midpoints of the opposite sides through the adjustment mechanism, so that the device can be used for clamping and welding plates of different sizes, with various adjustment methods and a wide range of applications.

[0061] The motors used in the first and second embodiments of the present invention are servo motors with brakes. When not in operation, the output shaft is locked and does not rotate.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A sheet metal processing and welding equipment, characterized in that: include: The clamping device comprises four connecting members distributed at the four corners of a rectangle, a moving cylinder located between two adjacent connecting members, two sliding rods vertically distributed on each connecting member and respectively connected to two adjacent moving cylinders in a sliding manner, a vertical plate vertically arranged on the moving cylinder, a pressing member for pressing the plate on the vertical plate, an adjusting component for rotating the pressing member toward or away from the vertical plate to press or loosen the plate, and an adjusting mechanism for adjusting the side length of a rectangle circumscribed by the four vertical plates, the pressing member having a cylindrical portion rotatably arranged on the moving cylinder and abutted by the bottom end of the plate, the central axis of the cylindrical portion being located directly below the vertical plane outside the moving cylinder, and a pair of cylindrical portions for positioning the bottom end of the plate and lifting the plate; The rotating mechanism drives the clamping device to rotate horizontally; The laser welding robot welds the joints of two adjacent plates in the vertical direction.

2. The sheet metal processing and welding equipment according to claim 1, characterized in that: A top end of the cylindrical portion contacts the bottom edge of the vertical plane outside the moving cylinder.

3. The sheet metal processing and welding equipment according to claim 1, characterized in that: The clamping member includes plate portion one, plate portion two and plate portion three which are connected in sequence, plate portion two and plate portion three are distributed in a V shape, cylindrical portion one is located at the connection between plate portion one and plate portion two, and the top end of plate portion three has cylindrical portion two facing the vertical plate, and plate portion two and plate portion three leave space for the plate to be placed relative to the vertical plate.

4. The sheet metal processing and welding equipment according to claim 3, characterized in that: The adjusting component comprises a threaded knob rotatably arranged at the bottom end of the moving cylinder, a lifting platform threadably connected to the threaded knob, and a connecting piece rotatably connected to the lifting platform and the plate part.

5. The sheet metal processing and welding equipment according to claim 1, characterized in that: The adjusting mechanism includes a mounting column and two groups of telescopic components. The two groups of telescopic components are offset up and down and are vertically distributed in the projection direction. The telescopic components include a bidirectional screw rod rotatably arranged on the mounting column, two connecting tubes respectively arranged on two opposite vertical plates, and a power component for driving the bidirectional screw rod to rotate. The bidirectional screw rod has a threaded portion 1 and a threaded portion 2 with opposite thread rotation directions and are respectively threadedly connected to the two connecting tubes.

6. The sheet metal processing and welding equipment according to claim 5, characterized in that: The rotating mechanism comprises a base, a rotating shaft rotatably arranged on the base, and a driving component arranged on the base and driving the rotating shaft to rotate. The mounting column is arranged on the top end of the rotating shaft.

7. The sheet metal processing and welding equipment according to claim 1, characterized in that: The connecting piece is an L-shaped corner piece. Two adjacent moving cylinders are provided with laser distance measuring heads facing the two ends of the same corner piece. The two laser distance measuring heads are oriented vertically. In the initial state, the length of the inner rectangle enclosed by the four plates clamped by the clamping device is a, and the width is b. The distances measured by the two laser distance measuring heads are m and n respectively. When the side length of the rectangle needs to be adjusted to length A and width B, the distances measured by the two laser distance measuring heads are M and N respectively, where M=0.5 (Aa) and N=0.5 (Bb).

8. A sheet metal processing and welding method, characterized in that: The welding method is implemented by the sheet metal processing welding equipment according to claim 1, and comprises the following steps: S1. According to the size of the finished rectangular cylindrical structure to be welded, the side length of the circumscribed rectangle of the four vertical plates is adjusted by the adjustment mechanism so that the four plates are respectively placed in contact with the outer side surfaces of the four vertical plates; S2. The pressing member is rotated toward the vertical plate through the adjusting assembly, and the pressing member presses the plate on the vertical plate, and the horizontal positions of the four plates are adjusted, and the edges of the four plates are butted, and the pressing member is further pressed on the vertical plate through the adjusting assembly to fix the four plates; S3, the rotating mechanism drives the clamping device to rotate horizontally, and rotates the four joints of the four plates to the welding area in turn, and each time the laser welding robot is used to weld the joints of the plates along the vertical direction; S4. After laser welding is completed, the pressing piece is turned away from the vertical plate by adjusting the assembly, and the finished rectangular cylindrical structure obtained by welding is removed upward.

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