A metal sheet welding device and a method of using the same

Abstract

The application relates to a metal plate welding device and a use method thereof, which comprises a rack, a horizontal plate fixedly connected to the rack, a connecting column fixedly connected to the horizontal plate, a top rod threadedly connected to the connecting column, a clamping assembly for clamping a support plate arranged on the rack, a workbench fixedly arranged on the rack, a welding gun arranged on the rack, a clearance opening arranged on the workbench, a clamping plate connected to the workbench, a clamping surface arranged on one side of the clamping plate close to the horizontal plate, a limiting block fixedly connected to the workbench, an abutting surface arranged on one side of the limiting block away from the horizontal plate, an offset block connected to the workbench, an inclined surface arranged on the offset block, the inclined surface being located in the same plane as the abutting surface on the side away from the clamping assembly, an offset air cylinder fixedly connected to the workbench, a top plate fixedly connected to the output end of the offset air cylinder, and a top block arranged on the top plate and matched with the inclined surface. The application has the effect that the right flat plate and the left flat plate after welding can be kept parallel, and the steel bars are convenient to install when the connecting piece is used.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a metal plate welding device and a use method thereof. BACKGROUND

[0002] Metal plate is a common processing raw material, which is often used to process various workpieces due to its advantages of easy processing and low manufacturing cost. Reinforcing steel is often used for reinforcement in construction engineering. The reinforcing steel and the main body of the building need to be connected through a connecting piece. The connecting piece is made of a metal plate through bending. The connecting piece includes a right plate and a left plate parallel to each other. The right plate and the left plate are fixed by a bending part. The right plate and the left plate are both provided with connecting holes for accommodating the reinforcing steel. The two connecting holes are coaxial. In order to improve the structural stability of the connecting piece, a support plate is welded between the right plate and the left plate.

[0003] The related technology can refer to the Chinese patent with publication number CN210232050U, which discloses a plate metal piece automatic welding device. The device includes a base, a first welding plate placed on the upper surface of the base, a support column fixedly connected to the rear side wall of the base, an installation plate fixedly installed on the upper end of the support column, a telescopic cylinder fixedly installed at the bottom center position of the installation plate, a lifting seat fixedly connected to the output end of the telescopic cylinder, a stepping motor fixedly installed at the front side lower position of the lifting seat, a rotating shaft fixedly connected to the output end of the stepping motor, and a clamping mechanism provided at the front end of the rotating shaft. The clamping mechanism clamps a second welding plate.

[0004] According to the related technology in the above, a large amount of heat is released when the support plate is welded with the right plate and the left plate. The right plate and the left plate are easily deformed along the weld due to heat, so that the right plate and the left plate after welding are bent along the weld towards the support plate, resulting in that the two connecting holes are no longer coaxial, and it is inconvenient to install the reinforcing steel. SUMMARY

[0005] In order to keep the right plate and the left plate parallel after welding, and thus facilitate the installation of reinforcing steel when the connecting piece is used, the present application provides a metal plate welding device and a use method thereof.

[0006] In the first aspect, the present application provides a metal plate welding device and a use method thereof, which adopts the following technical solution:

[0007] A metal plate welding device and its using method, comprising a rack, the rack is fixedly connected with a transverse plate, the transverse plate is fixedly connected with a connecting column, the connecting column is threadedly connected with a top rod, the rack is provided with a clamping assembly for clamping a support plate, the rack is fixedly provided with a workbench, the rack is provided with a group of welding guns, the workbench is provided with a clearance opening matched with the welding guns, one end of the workbench close to the transverse plate is connected with a clamping plate, one side of the clamping plate close to the transverse plate is provided as a clamping surface, one side of the workbench close to the transverse plate is fixedly connected with a limiting block, the side of the limiting block away from the transverse plate is provided as an abutting surface, a gap is arranged between the clamping surface and the abutting surface, the workbench is connected with a deviation block, the deviation block is provided with an inclined surface, one side of the inclined surface away from the clamping assembly is in the same plane with the abutting surface, the workbench is fixedly connected with a deviation cylinder, the output end of the deviation cylinder is fixedly connected with a top plate, the top plate is provided with a top block matched with the inclined surface.

[0008] By adopting the above technical scheme, the connecting piece is placed between the two transverse plates, and the right plate is located in the gap between the clamping surface and the abutting surface, at this time the left plate is in contact with the top rod. The support plate is placed between the two connecting plates, and is clamped by the clamping assembly, the deviation cylinder pushes the right plate to contact with the limiting block and the deviation block through the top plate. Under the support of the limiting block and the deviation plate, the right plate is bent along the inclined surface to the support plate and is in contact with the support plate, the support plate and the right plate are welded by the welding gun, the angle between the inclined surface and the clamping surface is calculated in advance, so that the bending amount of the right plate corresponds to the deformation amount after welding, and then they are offset after cooling, and the welding of the right plate is completed. The left plate is welded according to the above operation, so that the right plate and the left plate remain parallel to each other, at this time the two connecting holes are coaxial, and it is more convenient to pass the steel bar through the two connecting holes.

[0009] Optionally, the clamping assembly comprises a clamping cylinder, a connecting rod, a support rod, a straight plate, a rotating plate and a clamping block, the support rod is fixedly connected with the rack, the connecting rod passes through the support rod and is slidingly connected with the support rod, the clamping cylinder is fixedly connected with the rack, the connecting rod is fixedly connected with the output end of the clamping cylinder, the straight plate is fixedly connected with the upper end of the support rod, the support rod is provided with a receiving groove, the clamping block is slidingly connected in the receiving groove, the rotating plate is rotatably connected with the support rod, the two ends of the rotating plate are fixedly connected with cylindrical blocks, the clamping block is provided with a vertical groove, the cylindrical block close to the clamping block is slidingly connected in the vertical groove, the connecting rod is provided with a horizontal groove, the cylindrical block close to the connecting rod is slidingly connected in the horizontal groove.

[0010] By adopting the above technical scheme, the support plate is placed between the straight plate and the support rod, the clamping cylinder pushes the connecting rod to move upward, under the limiting action of the horizontal groove on the corresponding cylindrical block and the support of the support rod, the connecting rod drives all the rotating plates to swing, under the limiting action of the vertical groove on the corresponding cylindrical block, the rotating plate pushes the clamping block to cooperate with the straight plate to clamp the support plate when rotating.

[0011] Optionally, the offset block lower end is fixedly connected with a clamping block, the workbench upper end surface is provided with a clamping groove, the clamping block is inserted into the clamping groove and is attached to the workbench, the end of the clamping block away from the offset block is fixedly connected with a fixed block, the fixed block is attached to the workbench, the clamping block is provided with a plurality of countersunk bolts, and the countersunk bolts are sequentially threaded through the clamping block, the workbench and the fixed block and are threadedly connected.

[0012] By adopting the above technical scheme, the countersunk bolts clamp and position the workbench through cooperation with the fixed block, so that the limiting block is connected with the workbench. The clamping block is attached to the workbench, and the clamping groove makes the connection of the offset block and the workbench more stable. The connecting piece has different materials, and the welding deformation amount of different materials is also different. After all the countersunk bolts are removed, the offset block with different inclined surfaces can be replaced, so that the offset block is suitable for connecting pieces of different materials.

[0013] Optionally, the top block is provided with two groups of connecting assemblies on the side close to the offset cylinder, the connecting assembly comprises a rotating pipe and two half-ring blocks, the half-ring blocks are fixedly connected to the top block, the rotating pipe is sequentially threaded through the two half-ring blocks and is rotatably connected with the two half-ring blocks, the rotating pipe is provided with a limiting bolt, the limiting bolt is threaded through the rotating pipe and is threadedly connected with a nut, the top plate is provided with a rectangular groove corresponding to the connecting assembly, a rectangular block is slidably connected in the rectangular groove, a plurality of threaded holes are formed in the rectangular groove, the rectangular block is threadedly connected with a positioning bolt, the positioning bolt is threaded through the rectangular block and is threadedly connected with the corresponding threaded hole, the rectangular block is fixedly connected with a connecting ring matched with the connecting piece, the connecting ring is located between the two half-ring blocks of the same connecting assembly, and the rotating pipe is threaded through a connecting pipe and is rotatably connected with the connecting pipe.

[0014] By adopting the above technical scheme, the two half-ring blocks limit the rotating pipe, so that the rotating pipe can support the rotation of the connecting ring. The limiting bolt and the nut cooperate to limit the rotating pipe, so that the rotating pipe is not easy to fall off from the two half-ring blocks. Moving the two rectangular plates along the rectangular groove causes the relative displacement between the two rectangular blocks. The two connecting rings push the two rotating pipes to move, the two rotating pipes drive the top block to be deflected, so that the top block corresponds to the inclined surface on the offset block. The positioning bolt can cooperate with different threaded holes, so that the top block has multiple deflection angles, and the top block is matched with the offset block with different inclined surfaces.

[0015] Optionally, the workbench is fixedly connected with two groups of positioning assemblies, the positioning assembly comprises two positioning blocks and a positioning rod, the two positioning blocks are distributed along the length direction of the workbench and are fixedly connected to the workbench, and the positioning rod is fixedly connected between the two positioning blocks. The two groups of positioning assemblies are arranged along the width direction of the workbench, the top plate lower end is fixedly provided with a plurality of positioning rings matched with the positioning rod, and the positioning rod is threaded through the positioning ring and is slidably connected with the positioning ring.

[0016] By adopting the technical scheme, the two positioning blocks support and position the positioning rod, the positioning ring is attached to the positioning rod, the positioning rod can limit the positioning ring, and then the top plate can slide along the length direction of the positioning rod, the two sets of positioning assemblies are arranged to limit the rotation of the top plate in each direction, and the stability of the top plate during movement is improved.

[0017] Optionally, the clamping plate is fixedly connected with a sliding block on the side away from the clamping surface, the workbench is provided with a groove, the sliding block is slidingly connected in the groove and attached to the workbench, the workbench is fixedly connected with a positioning plate, the positioning plate is rotationally connected with an adjusting rod, and the end of the adjusting rod close to the clamping plate is threadedly connected with the sliding block.

[0018] By adopting the technical scheme, the positioning plate supports the adjusting rod, the adjusting rod can rotate, and under the limiting action of the groove on the sliding block, the rotation of the adjusting rod can drive the clamping plate to move away from or close to the limiting block, thereby adjusting the distance between the clamping surface and the abutting surface, facilitating the positioning of the right plate and the left plate with different thicknesses, and improving the applicability of the clamping plate.

[0019] Optionally, the welding gun includes two gun heads, the supporting rod is slidingly connected with a horizontal plate, the horizontal plate is provided with a vertical hole, the supporting rod passes through the vertical hole and is attached to the horizontal plate, the two gun heads are connected to the horizontal plate, the lower end of the rack is fixedly connected with a motor, the output end of the motor is fixedly connected with a threaded rod, and the threaded rod passes through the supporting plate and is threadedly connected with the supporting plate.

[0020] By adopting the technical scheme, the rotation of the motor output shaft drives the threaded rod to rotate, under the limiting action of the supporting rod on the horizontal plate, the rotation of the threaded rod drives the horizontal plate to move, the horizontal plate drives the two gun heads to weld the supporting plate and the right plate, and manual movement of the welding gun is not required during welding, thereby reducing the labor intensity.

[0021] Optionally, the connecting plate is rotationally connected with two rotating shafts, the upper end of the rotating shaft is fixedly connected with a positioning disc, the cross section of the positioning disc along the height direction is a regular polygon, the supporting plate is provided with a limiting groove matched with the positioning disc, the positioning disc is located in the limiting groove and attached to the supporting plate, the end of the positioning disc away from the rotating shaft is fixedly connected with a clamping ring, the gun head passes through the clamping ring and is slidingly connected with the clamping ring, the clamping ring is threadedly connected with a clamping bolt, the clamping bolt passes through the clamping ring and abuts against the gun head, the end of the rotating shaft away from the positioning disc is fixedly connected with a disc block, a return spring is arranged between the connecting plate and the disc block, one end of the return spring is fixedly connected with the connecting plate, and the other end is fixedly connected with the disc block, and the return spring is in a compressed state.

[0022] By adopting the technical scheme, the clamping ring limits the gun head, so that the gun head can move axially along the clamping ring, and the distance between the gun head and the connecting piece is convenient to adjust. The clamping bolt cooperates with the clamping ring to clamp and position the gun head. When the rotating column is rotated, the clamping ring drives the gun head to rotate, and then the angle between the gun head and the connecting piece can be adjusted. After adjustment, the positioning disc is clamped into the limiting groove, the limiting groove limits the rotation of the positioning disc, and then the rotation of the gun head is limited. The supporting spring pushes the disc block away from the connecting plate, and then the positioning disc is more closely attached to the connecting plate.

[0023] In a second aspect, the application provides a method for using the metal plate welding device, which adopts the following technical scheme.

[0024] A method for using a metal plate welding device, comprising: placing the connecting piece on the cross frame, with the right plate between the clamping plate and the limiting block; clamping the support plate by the clamping assembly; offsetting the cylinder to push the right plate to bend along the inclined surface of the offset block; welding the support plate and the right plate by the welding gun; the included angle between the inclined surface and the clamping surface is calculated in advance, so that the bending amount of the right plate corresponds to the deformation amount after welding; and after the welding of the right plate is completed, the left plate is welded again to keep the two connecting holes coaxial.

[0025] In summary, the application has at least one of the following beneficial technical effects:

[0026] 1. Place the connecting piece between the two cross plates, with the right plate in the gap between the clamping surface and the abutting surface, and the left plate in contact with the top rod. Place the support plate between the two connecting plates and clamp it by the clamping assembly. The offset cylinder pushes the right plate to contact the limiting block and the offset block. Under the support of the limiting block and the offset plate, the right plate bends along the inclined surface and contacts the support plate. The support plate and the right plate are welded by the welding gun. The included angle between the inclined surface and the clamping surface is calculated in advance, so that the bending amount of the right plate corresponds to the deformation amount after welding, and then they cancel each other out after cooling. After the welding of the right plate is completed, the left plate is welded according to the above operation, so that the right plate and the left plate remain parallel to each other. At this time, the two connecting holes are coaxial, and it is more convenient to pass the steel bar through the two connecting holes;

[0027] 2. Place the support plate between the straight plate and the support rod. The clamping cylinder pushes the connecting rod up. Under the limiting action of the horizontal groove on the corresponding cylindrical block and the support of the support rod, the connecting rod drives all the rotating plates to swing. Under the limiting action of the vertical groove on the corresponding cylindrical block, the rotating plate pushes the clamping block to clamp the support plate in cooperation with the straight plate when it rotates;

[0028] 3. The head bolts are used to clamp and position the workbench by cooperating with the fixed blocks, so that the limiting blocks are connected with the workbench. The clamping blocks are attached to the workbench, and the clamping grooves make the connection between the offset blocks and the workbench more stable. The connecting pieces are made of different materials, and the welding deformation of different materials is also different. After all the countersunk head bolts are removed, the offset blocks with different inclined surfaces can be replaced, so that the offset blocks are suitable for connecting pieces made of different materials. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of a metal plate welding device.

[0030] Figure 2 is Figure 1 is an enlarged schematic diagram of part A in

[0031] Figure 3 is a structural schematic diagram highlighting the offset block.

[0032] Figure 4 is a structural schematic diagram highlighting the clamping assembly.

[0033] Figure 5 is a schematic diagram highlighting the connection between the connecting rod and the clamping block.

[0034] Figure 6 is a structural schematic diagram highlighting the top plate.

[0035] Figure 7 is a structural schematic diagram highlighting the top block.

[0036] BRIEF DESCRIPTION OF DRAWINGS: 1, rack; 2, cross plate; 21, connecting column; 22, top rod; 3, clamping assembly; 31, clamping cylinder; 32, connecting rod, 33, support rod; 34, straight plate; 35, rotating plate; 351, cylindrical block; 36, clamping block; 11, workbench; 121, gun head; 12, connecting plate; 122, motor; 124, threaded rod; 125, rotating shaft, 126, positioning disc; 127, limiting groove; 128, clamping ring; 129, clamping bolt; 120, disc block; 123, supporting spring; 13, clamping plate; 131, sliding block; 132, groove; 133, positioning plate; 134, adjusting rod; 15, offset block; 151, clamping block; 111, clamping groove; 152, fixed block; 153, countersunk head bolt; 16, offset cylinder; 17, top plate; 18, top block; 4, connecting assembly; 41, rotating pipe; 42, half ring block; 43, limiting bolt; 44, nut; 171, rectangular groove; 172, rectangular block, 173, positioning bolt; 174, threaded hole; 175, connecting ring; 5, positioning assembly; 51, positioning block, 52, positioning rod; 53, positioning ring; 10, left plate; 100, right plate; 110, support plate. DETAILED DESCRIPTION

[0037] The application will be further described in detail below with reference to all the drawings.

[0038] The application discloses a metal plate welding device.

[0039] Referring to Figure 1 and Figure 2 , a metal plate welding device comprises a rack 1 made of stainless steel and having a certain strength, the upper end of the rack 1 is fixed with a horizontal plate 2, and an operator places a connecting piece on the horizontal plate 2. The horizontal plate 2 is fixed with a connecting column 21, the connecting column 21 is threadedly connected with a top rod 22, one end of the top rod 22 is fixed with a handle, and the end of the top rod 22 away from the handle is in abutment with a left plate 10, so that the top rod 22 provides support for the connecting piece.

[0040] Referring to Figure 1 and Figure 2 , the workbench 11 is provided with a clamping plate 13, one end of the clamping plate 13 close to the horizontal plate 2 is provided with a clamping surface, and the end of the clamping plate 13 away from the horizontal plate 2 is fixed with a sliding block 131; a groove 132 is formed in the length direction of the upper end surface of the workbench 11, and the sliding block 131 is slidably connected in the groove 132; under the limiting action of the inner wall of the groove 132 on the sliding block 131, the clamping plate 13 is close to or away from the horizontal plate 2; the workbench 11 is fixed with a positioning plate 133, the positioning plate 133 is rotationally connected with an adjusting rod 134, one end of the adjusting rod 134 is provided with a handle, and the adjusting rod 134 is rotated when the handle is rotated by an operator; the end of the adjusting rod 134 away from the handle is threadedly connected with the sliding block 131, and the sliding block 131 is moved when the adjusting rod 134 is rotated; and the sliding block 131 drives the clamping plate 13 to move.

[0041] Referring to Figure 1 and Figure 2 , the workbench 11 is fixed with a limiting block 14, one side of the limiting block 14 away from the horizontal plate 2 is provided with an abutting surface, the operator rotates the adjusting rod 134, so that the gap between the abutting surface and the clamping surface corresponds to the thickness of the right plate 100, the right plate 100 is placed between the abutting surface and the clamping surface, and the clamping plate 13 and the limiting block 14 are in abutment with the two sides of the right plate 100 respectively.

[0042] Referring to Figure 1 and Figure 3 , the workbench 11 is provided with an offset block 15, the upper end of the offset block 15 is provided with an inclined surface, and the inclination angle of the inclined surface corresponds to the deformation amount when the right plate 100 and the left plate 10 are welded. The end of the right plate 100 away from the horizontal plate 2 is in abutment with the inclined surface. The lower end of the offset block 15 is fixed with a clamping block 151, the workbench 11 is provided with a clamping groove 111, the operator inserts the clamping block 151 into the clamping groove 111, so that the clamping block 151 is attached to the workbench 11, and the upper end surface of the clamping block 151 is flush with the upper end surface of the workbench 11.

[0043] Referring to Figure 1 and Figure 3 , the lower end of the clamping block 151 is fixed with a fixed block 152, the workbench 11 is provided with a connecting groove matched with the fixed block 152, the fixed block 152 is attached to the inner wall of the connecting groove, the clamping block 151 is provided with two countersunk head bolts 153, the operator sequentially passes the countersunk head bolts 153 through the clamping block 151 and the workbench 11, and the countersunk head bolts 153 are threadedly connected with the fixed block 152. The countersunk head bolts 153 cooperate with the fixed block 152, so that the limiting block 14 is connected together with the workbench 11, and then the offset block 15 is connected together with the workbench 11. The clamping groove 111 and the connecting groove respectively limit the clamping block and the fixed block 152, so that the connection of the offset block 15 and the workbench 11 is more stable.

[0044] Referring to Figure 1 and Figure 3 , in order to meet the needs of the working environment, the connecting pieces have different materials and different sizes, and then the welding deformation amounts of the connecting pieces with different materials and different sizes are different. The operator can replace the offset block 15 after disassembling all the countersunk head bolts 153, so that the offset block 15 with different inclined surfaces is suitable for connecting pieces with different materials and sizes.

[0045] Referring to Figure 4 and Figure 5 , the rack 1 (refer to Figure 1 ) is provided with a clamping assembly 3, the clamping assembly 3 includes a clamping cylinder 31, a connecting rod 32, a supporting rod 33, a straight plate 34, a rotating plate 35 and a clamping block 36. The supporting rod 33 is fixedly connected with the rack 1 (refer to Figure 1 ) and is provided with a containing cavity in the length direction. The connecting rod 32 is slidingly connected in the containing cavity and is attached to the supporting rod 33. The connecting rod 32 is fixedly connected with the output end of the clamping cylinder 31, and the operator operates the output end of the clamping cylinder 31 to drive the connecting rod 32 to move along the containing cavity.

[0046] Referring to Figure 4 and Figure 5 , the straight plate 34 is fixedly connected with the supporting rod 33, and the operator places the supporting plate 110 (refer to Figure 1 ) between the straight plate 34 and the supporting rod 33, so that one end of the supporting plate 110 (refer to Figure 1 ) abuts against the left flat plate 10 (refer to Figure 1 ). The supporting rod 33 is provided with a containing groove, the rotating plate 35 is located in the containing groove and is rotationally connected with the supporting rod 33, both ends of the rotating plate 35 are fixedly provided with cylindrical blocks 351, and the upper end of the connecting rod 32 is provided with a horizontal groove. The cylindrical block 351 close to the connecting rod 32 is slidingly connected in the horizontal groove and is attached to the connecting rod 32. When the connecting rod 32 moves, the cylindrical block 351 in the horizontal groove drives the rotating plate 35 to swing.

[0047] Referring to Figure 4 and Figure 5 , the clamping block 36 is slidingly connected in the accommodating groove, the clamping block 36 is provided with a vertical groove, and a cylindrical block 351 close to the clamping block 36 is slidingly connected in the vertical groove and abuts against the clamping block 36. When the rotating plate 35 rotates, the cylindrical block 351 in the vertical groove pushes the clamping block 36 to move, and the clamping block 36 clamps the support plate 110 in cooperation with the straight plate 34.

[0048] Referring to Figure 1 and Figure 2 , the workbench 11 is provided with an offset cylinder 16, and the output end of the offset cylinder 16 is fixedly connected with a top plate 17. An operator drives the offset cylinder 16 to move the top plate 17. The upper end surface of the workbench 11 is provided with two sets of positioning assemblies 5, and the top plate 17 is fixedly provided with two positioning rings 53 corresponding to the positioning assemblies 5. The positioning assembly 5 comprises two positioning blocks 51 and a positioning rod 52. The two positioning blocks 51 are fixedly connected with the workbench 11 along the length direction of the workbench 11, the positioning ring 53 is located between the two positioning blocks 51, and the positioning rod 52 penetrates the positioning block 51 and is slidingly connected therewith.

[0049] Referring to Figure 1 and Figure 2 , the two ends of the positioning rod 52 are fixedly connected with the two positioning blocks 51 respectively, and the positioning block 51 supports and positions the positioning rod 52. When the offset cylinder drives the top plate 17 to move, the top plate 17 moves along the positioning rod 52, and the two sets of positioning assemblies 5 jointly limit the rotation of the top plate 17 in each direction, so that the top plate 17 is more stable during movement.

[0050] Referring to Figure 6 and Figure 7 , the top plate 17 is provided with a top block 18, and the side close to the offset cylinder 16 of the top block 18 is provided with two sets of connecting assemblies 4 along the length direction. The connecting assembly 4 comprises a rotating pipe 41 and two half-ring blocks 42. The two half-ring blocks are fixedly connected with the top plate 17, the half-ring block 42 is provided with a vertical hole, and the rotating pipe 41 is rotatably connected in the two vertical holes and abuts against the half-ring block 42.

[0051] Referring to Figure 6 and Figure 7 , the rotating pipe 41 is provided with a limiting bolt 43, the operator penetrates the rotating pipe 41 with the limiting bolt 43 and makes it abut against the half-ring block 42 located above, the limiting bolt 43 is threadedly connected with a nut 44, the nut 44 abuts against the half-ring block 42 located below, and the limiting bolt 43 and the nut 44 cooperate with each other to prevent the rotating pipe 41 from falling off between the two half-ring blocks 42.

[0052] Referring to Figure 6 and Figure 7, the top plate 17 is provided with two rectangular grooves 171 along the length direction, the rectangular grooves 171 correspond to the rotating pipe 41, the rectangular blocks 172 are slidably connected in the rectangular grooves 171, and an operator can move the rectangular blocks 172 along the rectangular grooves 171. One end of the rectangular block 172 is fixedly provided with a connecting ring 175, the rotating pipe 41 penetrates through the corresponding connecting ring 175 and is attached to the connecting ring 175, the top block 18 is provided with an arc-shaped groove matched with the connecting ring 175, the connecting ring 175 is located in the arc-shaped groove and is rotationally connected with the top block 18, and when the operator moves the rectangular block 172, the rectangular block 172 drives the top block 18 to rotate through the rotating pipe 41.

[0053] With reference to Figure 6 and Figure 7 , the two rectangular blocks 172 are provided with a plurality of rotating holes along the length direction, the spacing between the rotating holes is different, the rectangular groove 171 is provided with a plurality of threaded holes 174 matched with the rotating holes, when different rotating holes are opposite to different threaded holes 174, the two rectangular blocks 172 move different distances, so that the top block 18 has different deflection angles, and the top block 18 is matched with different inclined surfaces of the offset block 15.

[0054] With reference to Figure 1 and Figure 6 , the rotating hole is provided with a positioning bolt 173, and the operator threadedly connects the positioning bolt 173 penetrating through the rotating hole and the threaded hole 174, so as to clamp and position the rectangular block 172. The operator operates the offset cylinder 16 to push the top plate 17 to move, so that the top block 18 (refer to Figure 7 ) pushes the right plate 100 to bend away from the support plate 110, and the bending angle of the right plate 100 corresponds to the deformation amount during welding.

[0055] With reference to Figure 1 and Figure 4 , the rack 1 is provided with a group of welding guns, and the welding guns include two gun heads 121. The support rod 33 is provided with a connecting plate 12, and the connecting plate 12 is provided with a vertical hole. The support rod 33 penetrates through the vertical hole and is attached to the connecting plate 12. The connecting plate 12 is slidably connected with the support rod 33, and an operator can move the connecting plate 12 in the vertical direction. The rack 1 is provided with a motor 122 at the lower end, and the output end of the motor 122 is fixedly provided with a threaded rod 124. When the output shaft of the motor 122 rotates, the threaded rod 124 rotates.

[0056] With reference to Figure 1 and Figure 4, the threaded rod 124 is connected with the connecting plate 12 and threaded connection, in the support rod 33 and the vertical hole in the cooperation of the operator, the motor 122 drives the threaded rod 124 rotation, threaded rod 124 push connecting plate 12 along the vertical direction movement. The both ends of the connecting plate 12 are rotatably connected with the shaft 125, the shaft 125 is connected with the connecting plate 12, the upper end of the shaft 125 is fixedly connected with the positioning disc 126, the shaft 125 drives the positioning disc 126 rotation.

[0057] Referring to Figure 1 and Figure 4 , the upper end of the positioning disc 126 is fixedly connected with the clamping ring 128, the clamping ring 128 is provided with a connecting hole, the gun head 121 is connected with the connecting hole and the clamping ring 128 is connected with the connecting hole, the operator moves the gun head 121 along the connecting hole, and then adjusts the distance between the gun head 121 and the connecting piece. The clamping ring 128 is provided with a clamping bolt 129, the operator passes the clamping bolt 129 through the clamping ring 128 and abuts against the gun head 121, and the clamping bolt 129 is connected with the clamping ring 128 to limit the gun head 121.

[0058] Referring to Figure 1 and Figure 4 , the cross section of the positioning disc 126 is a regular hexagon, the connecting plate 12 is provided with a limiting groove 127 matched with the positioning disc 126, the positioning disc 126 is clamped in the limiting groove 127, and the positioning disc 126 is attached to the inner wall of the limiting groove 127, the limiting groove 127 limits the rotation of the positioning disc 126. The operator moves the positioning disc 126 out of the limiting groove 127, rotates the positioning disc 126, and then adjusts the angle between the gun head 121 and the connecting piece, which is suitable for different working conditions.

[0059] Referring to Figure 1 and Figure 4 , the lower end of the shaft 125 is fixedly connected with the disc block 120, the disc block 120 is spaced apart from the connecting plate 12, the shaft 125 is sleeved with a reset spring, the reset spring is in a compressed state, one end of the reset spring is fixedly connected with the connecting plate 12, and the other end is fixedly connected with the disc block 120, so that the supporting spring 123 has the tendency to push the disc block 120 away from the connecting plate 12, and the supporting spring 123 is conducive to improving the close fit of the positioning disc 126 and the connecting block.

[0060] Referring to Figure 1 and Figure 4 , the workbench 11 is provided with a gap matched with the welding gun, the two gun heads 121 move through the gap, the operator operates the two gun heads 121 to weld the support plate 110 and the right plate 100, the motor 122 drives the connecting plate 12 to move through the threaded rod 124, the connecting plate 12 drives the two gun heads 121 to move, so that the gun head 121 does not need to be manually moved during welding, which is conducive to reducing the labor intensity.

[0061] Referring to Figure 1 and Figure 4 After the welding of the support plate 110 and the right flat plate 100 is completed, the operator drives the offset cylinder 16 to drive the top block 18 away from the right flat plate 100, at this time, the welding deformation of the right flat plate 100 is offset by the deformation applied by the top plate 17, so that the first step connecting plate 12 remains flat, and the left flat plate 10 and the support plate 110 are welded by the above operation, at this time, the right flat plate 100 and the left flat plate 10 remain parallel, and the two connecting holes remain coaxial, so that the steel bar can be conveniently passed through the two connecting holes when the connecting piece is used.

[0062] The implementation principle of the metal plate welding device in the embodiment of the application is as follows: the operator places the connecting piece on the cross plate 2, and makes the right flat plate 100 located between the clamping plate 13 and the limiting block 14, and makes the left flat plate 10 abut against the top rod 22, at this time, the right flat plate 100 and the left flat plate 10 are supported. The support plate 110 is placed between the straight plate 34 and the clamping block 36, and the clamping cylinder 31 is operated to drive the clamping block 36 to clamp the support plate 110. The offset cylinder 16 is operated to drive the top plate 17 to move, and the top plate 17 drives the right flat plate 100 to abut against the limiting block 14 and the offset block 15 through the top block 18. Under the continuous pushing of the top block 18, the right flat plate 100 is bent along the inclined surface of the limiting plate, and the bending amount corresponds to the deformation amount after welding. The support plate 110 and the right flat plate 100 are welded together by the welding gun, and the welding deformation amount and the deformation amount during bending are offset, and the left flat plate 10 is welded again after the welding of the right flat plate 100 is completed, so that the right flat plate 100 and the left flat plate 10 are parallel to each other, and the two connecting holes are coaxial, and the steel bar is conveniently passed through the two connecting holes.

[0063] The embodiment of the application also discloses a use method of the metal plate welding device, which comprises the following steps: placing the connecting piece on the cross frame, making the right flat plate 100 located between the clamping plate 13 and the limiting block 14, clamping the support plate 110 by the clamping assembly 3, driving the right flat plate 100 to bend along the inclined surface of the offset block 15 by the offset cylinder 16 through the top block 18, welding the support plate 110 and the right flat plate 100 by the welding gun, and the included angle between the inclined surface and the clamping surface is obtained in advance, so that the bending amount of the right flat plate 100 corresponds to the deformation amount after welding and is offset, and the left flat plate 10 is welded again after the welding of the right flat plate 100 is completed, so that the two connecting holes remain coaxial.

[0064] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A metal sheet welding apparatus, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to a horizontal plate (2), and the horizontal plate (2) is fixedly connected to a connecting column (21). The connecting column (21) is threadedly connected to a top rod (22). The frame (1) is provided with a clamping assembly (3) for clamping the support plate (110). The frame (1) is fixedly provided with a workbench (11). The frame (1) is provided with a set of welding guns. The workbench (11) has a clearance opening adapted to the welding guns. A clamping plate (13) is connected to one end of the workbench (11) near the horizontal plate (2). The side of the clamping plate (13) near the horizontal plate (2) is provided as a clamping surface. A limit block (14) is fixedly connected to one side of the workbench (11) near the horizontal plate (2). The limit block (14) is opposite to the side of the horizontal plate (2). One side of the horizontal plate (2) is set as the abutment surface, and there is a gap between the clamping surface and the abutment surface. The worktable (11) is connected to the offset block (15), and the offset block (15) is provided with an inclined surface. The side of the inclined surface away from the clamping assembly (3) is on the same plane as the abutment surface. The worktable (11) is fixedly connected to the offset cylinder (16), and the output end of the offset cylinder (16) is fixedly connected to the top plate (17). The top plate (17) is provided with a top block (18) that matches the inclined surface. The clamping assembly (3) includes a clamping cylinder (31), a connecting rod (32), a support rod (33), a straight plate (34), a rotating plate (35), and a clamping block (36). The support rod (33) is fixedly connected to the frame (1). The connecting rod (32) passes through the support rod (33) and is slidably connected to the support rod (33). The clamping cylinder (31) is fixedly connected to the frame (1). The connecting rod (32) is fixedly connected to the output end of the clamping cylinder (31). The straight plate (34) is fixedly connected to the upper end of the support rod (33). The support rod (33) has a receiving groove. The clamping block (36) is slidably connected to the receiving groove. The rotating plate (35) is rotatably connected to the support rod (33). The two ends of the rotating plate (35) are fixedly connected to cylindrical blocks (351). The clamping block (36) has a vertical groove. The cylindrical block (351) near the clamping block (36) is slidably connected to the vertical groove. The connecting rod (32) has a horizontal groove. The cylindrical block (351) near the connecting rod (32) is slidably connected in the transverse groove; the lower end of the offset block (15) is fixedly connected to the snap block (151), the upper surface of the worktable (11) is provided with a slot (111), the snap block (151) is inserted into the slot (111) and fits against the worktable (11), the end of the snap block (151) away from the offset block (15) is fixedly connected to the fixing block (152), the fixing block (152) fits against the worktable (11), the snap block (151) is provided with several countersunk bolts (153), the countersunk bolts (153) are threaded through the snap block (151), the worktable (11) and the fixing block (152) in sequence;The top block (18) has two sets of connecting assemblies (4) on the side near the offset cylinder (16). The connecting assembly (4) includes a rotating tube (41) and two semi-ring blocks (42). The semi-ring blocks (42) are fixedly connected to the top block (18). The rotating tube (41) passes through the two semi-ring blocks (42) in sequence and is rotatably connected to them. The rotating tube (41) is provided with a limiting bolt (43). The limiting bolt (43) passes through the rotating tube (41) and is threaded with a nut (44). The top plate (17) has a rectangular groove (171) corresponding to the connecting assembly (4). A rectangular block (172) is slidably connected within a groove (171). Several threaded holes (174) are provided within the rectangular groove (171). A positioning bolt (173) is threaded onto the rectangular block (172). The positioning bolt (173) passes through the rectangular block (172) and is threaded into the corresponding threaded hole (174). A connecting ring (175) adapted to the connecting component is fixedly connected to the rectangular block (172). The connecting ring (175) is located between two half-ring blocks (42) of the same connecting assembly (4). A rotating pipe (41) passes through the connecting pipe and is rotatably connected to it.

2. The metal sheet welding device according to claim 1, characterized in that: The workbench (11) is fixedly connected to two sets of positioning components (5). The positioning components (5) include two positioning blocks (51) and a positioning rod (52). The two positioning blocks (51) are distributed along the length of the workbench (11) and the workbench (11) is fixedly connected. The positioning rod (52) is fixedly connected between the two positioning blocks (51). The two sets of positioning components (5) are arranged along the width of the workbench (11). The lower end of the top plate (17) is fixedly provided with several positioning rings (53) that are adapted to the positioning rods (52). The positioning rods (52) all pass through the positioning rings (53) and are slidably connected to them.

3. The metal sheet welding device according to claim 1, characterized in that: A slider (131) is fixedly connected to the side of the clamping plate (13) away from the clamping surface. The worktable (11) has a groove (132). The slider (131) is slidably connected in the groove (132) and fits against the worktable (11). The worktable (11) is fixedly connected to a positioning plate (133). The positioning plate (133) is rotatably connected to an adjusting rod (134). The end of the adjusting rod (134) near the clamping plate (13) is threadedly connected to the slider (131).

4. The metal sheet welding device according to claim 1, characterized in that: A set of welding guns includes two gun heads (121), a support rod (33) is slidably connected to a connecting plate (12), the connecting plate (12) has a vertical hole, the support rod (33) passes through the vertical hole and fits against the connecting plate (12), both gun heads (121) are connected to the connecting plate (12), a motor (122) is fixedly connected to the lower end of the frame (1), a threaded rod (124) is fixedly connected to the output end of the motor (122), the threaded rod (124) passes through the connecting plate (12) and is threadedly connected to the connecting plate (12).

5. The metal sheet welding device according to claim 4, characterized in that: The connecting plate (12) is rotatably connected to two rotating shafts (125). A positioning plate (126) is fixedly connected to the upper end of the rotating shaft (125). The cross-section of the positioning plate (126) along the height direction is a regular polygon. The support plate (110) has a limiting groove (127) adapted to the positioning plate (126). The positioning plate (126) is located in the limiting groove (127) and fits against the support plate (110). A clamping ring (128) is fixedly connected to the end of the positioning plate (126) away from the rotating shaft (125). The gun head (121) passes through the clamping ring. The ring (128) is slidably connected to the clamping ring (128). The clamping ring (128) is threaded with a clamping bolt (129). The clamping bolt (129) passes through the clamping ring (128) and abuts against the gun head (121). The end of the rotating shaft (125) away from the positioning plate (126) is fixedly connected to a disc block (120). A return spring is provided between the disc block (120) and the connecting plate (12). One end of the return spring is fixedly connected to the connecting plate (12), and the other end is fixedly connected to the disc block (120). The return spring is in a compressed state.

6. A method of using a metal sheet welding apparatus according to any one of claims 1-5, characterized in that: Place the connector on the crossbeam so that the right plate (100) is between the clamping plate (13) and the limiting block (14). The support plate (110) is clamped by the clamping assembly (3). The offset cylinder (16) pushes the right plate (100) to bend along the inclined surface of the offset block (15) through the top block (18). The welding gun welds the support plate (110) and the right plate (100). The angle between the inclined surface and the clamping surface is calculated in advance so that the bending amount of the right plate (100) and the deformation amount after welding are correspondingly offset. After the welding of the right plate (100) is completed, the left plate (10) is welded again so that the two connecting holes remain coaxial.

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