Angle steel assembly welding equipment for steel truss production

Abstract

The present invention relates to the technical field of angle steel butt welding, and discloses an angle steel butt welding device made of steel trusses, specifically comprising: a machine base, a distance adjusting device is movably installed in the inner cavity of the machine base, a stand is fixedly installed on both sides of the front and back sides of the top of the machine base, a swinging device is movably installed on the top of the stand, a welding device is movably installed on the side of the front of the machine base away from the distance adjusting device, and the welding device and the distance adjusting device are opposite to each other, and a placement plate is fixedly connected to the top of the welding device. The angle steel butt welding device made of steel trusses slides along the shaft through a push piece, and the slider drives the side strip to move synchronously, the side strip gradually fits with the main beam plate, and the guard plate moves accordingly, a slide groove corresponding to the guard plate is opened on the top of the cushion layer, and the guard plate slides synchronously with the side strip, and when the side strip fits and contacts with the main beam plate, the butt welding is finally completed by using welding rods, thereby improving the welding effect of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of angle steel butt welding, in particular to angle steel butt welding equipment for making steel trusses. Background Art

[0002] Trusses made of steel, crane beams of industrial and civil building roof structures, bridges and hydraulic gates, etc., often use steel plate frames as the main load-bearing components. Various towers such as mast towers, tow towers and transmission line towers are spatial steel trusses composed of three, four or more plane brackets. During the use of steel trusses, it is essential to use angle steel groups for welding to improve the scope of application.

[0003] According to the angle steel positioning-welding assembly disclosed in the Chinese patent with the announcement number CN213127282U, the angle steel positioning-welding assembly includes: a positioning device, including a mounting frame, the mounting frame is provided with a clamping wheel and a clamping wheel group, the clamping wheel group is used to press the angle steel to be welded on the corresponding web, and the clamping wheel group is used to clamp the part of the angle steel to be welded that is perpendicular to the web; a welding device, including a welding gun bracket, a welding gun installed on the welding gun bracket and a supporting wheel, the supporting wheel is used to support the part of the angle steel to be welded that is perpendicular to the web, so that the welding gun is aligned with the welding part, the angle steel positioning-welding assembly is set to move from back to front when in use, and the welding gun bracket can be swung left and right and is connected to the rear end of the mounting frame; an elastic member is arranged between the positioning device and the welding device, and is used to keep the supporting wheel in contact with the part of the angle steel to be welded that is perpendicular to the web.

[0004] To sum up, the defect of the above-mentioned prior art is that, although it can solve the problem of combining the welding machine with the angle steel positioning device, it is difficult to deal with the porosity problem existing in welding, which will reduce the strength and sealing of the welding connection. The main reason is the presence of moisture or oil in the welding environment or the stability is not good enough. Therefore, there is still room for improvement. Summary of the invention

[0005] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve the technical problems is:

[0006] An angle steel assembly welding device for steel trusses, specifically comprising:

[0007] A machine base, wherein a distance adjusting device is movably installed at the inner cavity of the machine base, and the distance adjusting device is used to assist in adjusting the longitudinal distance of the angle steel workpiece. Stands are fixedly installed at both sides of the front and back sides of the top of the machine base, and a swinging device is movably installed on the top of the stand, and the swinging device is used to adjust the state of cleaning oil stains. A welding device is movably installed on the side of the front of the machine base away from the distance adjusting device, and the welding device and the distance adjusting device are opposite to each other. The welding device is used to adjust the horizontal distance and the extrusion state during welding. A placement plate is fixedly connected to the top of the welding device, and a welding rod is fixedly installed on the side of the middle of the top of the placement plate close to the distance adjusting device;

[0008] The welding device includes a clamping device, in which a spiral rod is rotatably installed in the inner cavity of the clamping device. The spiral rod moves through the interior of the plate, and the spiral rod rotates to link with a swinging piece to run synchronously. The rotation of the swinging piece gradually generates wind force. The bottom end of the clamping device is fixedly connected to a middle stack, and a plate is fixedly installed in the middle of the side of the spiral rod close to the distance adjusting device. An auxiliary strip is fixedly connected to the end of the plate away from the clamping device, and an arc is fixedly connected to the top of the auxiliary strip. A swinging piece is rotatably installed on the outer surface of the spiral rod.

[0009] The cam is provided with a slot corresponding to the spiral rod, and the center lines of the swinging piece and the spiral rod are in the same straight line, and the spiral rod passes through the inner cavity of the clamping device, and the clamping device also includes a mounting seat, a box body is movably mounted in the middle of the top of the mounting seat, and the box body is located in the middle of the side close to the distance adjusting device, a main beam plate is fixedly mounted on the side of the box body away from the mounting seat, and a cushion layer is movably mounted under the box body, a guard plate is slidably mounted on the top of the cushion layer, and a side strip is fixedly mounted on the side of the guard plate away from the mounting seat, the side strip gradually fits with the main beam plate, and the guard plate moves accordingly, and a sliding groove corresponding to the guard plate is opened on the top of the cushion layer, and the guard plate slides synchronously with the side strip, the main beam plate passes through the interior of the box body, and the cushion layer passes through the top inner cavity of the mounting seat, there are two side strips, and the side strips are located on the front and back sides of the box body, the height of the side strip is lower than the height of the main beam plate, the side strip and the center lines of the main beam plate and the box body are all in the same straight line, and adhesive is coated between the box body and the mounting seat.

[0010] The main beam plate also includes a base, a vertical seat is fixedly installed in the middle of the top of the base, and a slider is slidably connected to the top of the vertical seat. The slider is composed of two parts, and a push piece is fixedly installed on the top of one side between the two sliders, so that the adjusting rod twists the slider to run, and the slider slides along the inner cavity of the vertical seat, and the vertical seat moves closer to the placement plate. The vertical seat is linked to the slider to move, and the slider gradually squeezes the main beam plate, and the slider pushes the push piece to move, and the push piece slides along the outer surface of the shaft rod. An shaft rod is movably installed at the inner cavity of the top of the slider, and an adjusting rod is rotatably installed at the inner cavity of the bottom end of the slider. Bolts are movably installed at the corners of the top of the vertical seat, and there are two bolts in total, and the bolts are symmetrically designed with reference to the center line of the vertical seat, and a sliding groove corresponding to the slider is opened in the middle of the inner cavity of the vertical seat.

[0011] The swinging device includes a cylinder body, which is located in the inner cavity of the stand, a sheet body is movably installed in the inner cavity of the cylinder, a thin rod is movably inserted at the axis of the sheet body, a push block is fixedly connected to the top of the thin rod, and the end of the thin rod away from the push block is fixedly connected to the side plate, and a fan blade is movably inserted at the bottom end of the side plate, and the fan blade is squeezed to form a function of pushing the side plate, the side plate pushes the thin rod, and the push block grasps the oil stains in the middle of the main beam plate along with the thin rod to absorb the oil stains, the diameter of the sheet body is larger than the diameter of the thin rod, the fan blade is embedded in the middle of the inner cavity of the side plate, and the inside of the sheet body is hollow.

[0012] The present invention provides an angle steel assembly welding device for steel trusses, which has the following beneficial effects:

[0013] 1. The angle steel pair welding equipment made of the steel truss is connected to the output end of the motor through one end of the spiral rod. The spiral rod rotates counterclockwise when energized, and the spiral rod rotates and gradually twists. Corresponding reverse textures are set between the spiral rod and the mounting seat, and a slide groove corresponding to the arc body is opened on the machine seat, so that the equipment has the basic conditions for quickly adjusting the spacing and achieving the purpose of rapid processing.

[0014] 2. The angle steel pair welding equipment made of the steel truss gradually penetrates the interior of the clamping device through the rotation of the spiral rod, and the spiral rod continues to twist to push the arc to move. The auxiliary bar moves synchronously with the spiral rod, and the auxiliary bar is convenient for supporting the arc. The distance between the arc and the other part gradually decreases, and the arc gradually positions the cylindrical workpiece placed in the middle, and the cylindrical workpiece is welded by the welding rod, thereby ensuring that the equipment has the function of rapid clamping and achieving the purpose of rapid lifting, positioning and adjustment.

[0015] 3. The angle steel assembly welding equipment made of the steel truss is displaced by the rotation of the spiral rod. The displacement of the spiral rod penetrates the inside of the plate and moves. The rotation of the spiral rod links the swinging parts and runs synchronously. The rotation of the swinging parts gradually generates wind force, which gradually blows the workpiece in the middle of the arc clamp, thereby reducing the humidity in the welding environment and improving the processing purpose.

[0016] 4. The angle steel pair welding equipment made of the steel truss moves synchronously by dragging the middle layer with the mounting seat. The middle layer slides along the middle groove of the machine seat. The middle layer pulls the base to move, and the base drives the vertical seat to move synchronously. The vertical seat moves toward the placement plate, and the vertical seat moves with the slider. The slider gradually squeezes the main beam plate, and the top of the main beam plate is squeezed to shorten the overall distance, thereby ensuring that the main beam plate has a stable squeezing effect at both ends of the equipment to prevent loosening at the front and back.

[0017] 5. The angle steel assembly welding equipment made of the steel truss has a reverse texture between the adjusting rod and the slider. The external force is used to twist the adjusting rod to cause the adjusting rod to twist the slider to move. The slider slides along the inner cavity of the vertical seat, and the slider pushes the push piece to move. The push piece slides along the outer surface of the shaft rod, and the distance between the push piece and the main beam plate gradually shortens. The push piece fits on the side of the main beam plate, thereby ensuring that the slider has the function of assisting in adjusting the clamping distance of the front and back sides, thereby improving the flexible adjustment performance of the equipment.

[0018] 6. The angle steel pair welding equipment made of the steel truss slides along the shaft through the push piece, and the slider drives the side strip to move synchronously. The side strip gradually fits with the main beam plate, and the guard plate moves accordingly. A slide groove corresponding to the guard plate is opened on the top of the cushion layer. The guard plate slides synchronously with the side strip. When the side strip fits and contacts with the main beam plate, the welding rod is finally used to complete the pair welding, thereby improving the welding effect of the equipment.

[0019] 7. The angle steel assembly welding equipment made of the steel truss is displaced toward the vertical seat through the mounting seat. When the mounting seat is displaced, it gradually contacts the outer wall of the fan blade, and the fan blade is squeezed to push the side plate. The side plate pushes the thin rod, and the push block grasps the oil stains in the middle of the main beam plate along with the thin rod to absorb the oil stains, thereby improving the cleanliness of the equipment and avoiding welding pores caused by oil stains. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the welding rod of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the spiral rod of the present invention;

[0023] Figure 4It is a structural schematic diagram of the arc body of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the laminate in the present invention;

[0025] Figure 6 It is a structural schematic diagram of the main barrel rod of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the edge strip of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the guard plate of the present invention;

[0028] Fig. 9 For the present invention Figure 8 A partial enlarged schematic diagram of the structure of the base at C in the middle;

[0029] Fig.10 It is a structural schematic diagram of the side plate of the present invention;

[0030] Fig.11 It is a schematic structural diagram of the cylinder of the present invention.

[0031] In the figure: 1. machine base; 2. distance adjustment device; 3. vertical seat; 4. swinging device; 5. welding device; 6. placement plate; 7. welding rod; 20. base; 21. vertical seat; 22. slider; 23. push piece; 24. adjusting rod; 25. bolt; 26. shaft rod; 41. cylinder; 42. thin rod; 43. sheet body; 44. side plate; 45. fan sheet; 46. push block; 51. clamping device; 52. middle laminate; 53. spiral rod; 54. pasting plate; 55. auxiliary strip; 57. swinging piece; 58. arc body; 511. mounting seat; 512. box body; 513. main beam plate; 514. side strip; 515. cushion layer; 516. guard plate. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0033] Example 1: Please refer to Figure 1 - Figure 5 , Figure 8 , Fig. 9 The present invention provides a technical solution: a welding device for angle steel assembly made of steel trusses, specifically comprising:

[0034] A machine base 1, wherein a distance adjusting device 2 is movably installed in the inner cavity of the machine base 1, and the distance adjusting device 2 is used to assist in adjusting the longitudinal distance of the angle steel workpiece;

[0035] The main beam plate 513 also includes a base 20, a vertical seat 21 is fixedly installed in the middle of the top of the base 20, and a slider 22 is slidably connected to the top of the vertical seat 21. The slider 22 is composed of two parts, and a push piece 23 is fixedly installed on the top of one side between the two parts of the slider 22, so that the adjusting rod 24 twists the slider 22 to run, and the slider 22 slides along the inner cavity of the vertical seat 21, and the vertical seat 21 forms a direction toward the placement plate 6. The vertical seat 21 is linked to the slider 22 to move, and the slider 22 gradually squeezes the main beam plate 513. The slider 22 pushes the push piece 23 to move, and the push piece 23 slides along the outer surface of the shaft rod 26. The shaft rod 26 is movably installed at the inner cavity of the top of the slider 22, and the adjusting rod 24 is rotatably installed at the inner cavity of the bottom end of the slider 22. Bolts 25 are movably installed at the corners of the top of the vertical seat 21. There are two bolts 25, and the bolts 25 are symmetrically designed with the center line of the vertical seat 21 as a reference. A sliding groove corresponding to the slider 22 is opened in the middle of the inner cavity of the vertical seat 21.

[0036] When the distance between the two sides of the main beam plate 513 needs to be adjusted, a reverse texture is provided between the adjusting rod 24 and the slider 22, and the adjusting rod 24 is twisted by an external force to move, so that the adjusting rod 24 twists the slider 22 to move, and the slider 22 slides along the inner cavity of the vertical seat 21, and the slider 22 pushes the push piece 23 to move, and the push piece 23 slides along the outer surface of the shaft 26, and the distance between the push piece 23 and the main beam plate 513 is gradually shortened, and the push piece 23 is attached to the side of the main beam plate 513, thereby ensuring that the slider 22 has the function of assisting in adjusting the clamping distance of the front and back sides, and improving the flexible adjustment performance of the equipment;

[0037] When the arc-shaped steel truss workpiece needs to be assembled, the slider 22 is displaced by the torsional action of the adjusting rod 24, and the slider 22 is gradually linked to the push plate 23 to move synchronously when it is displaced. The push plate 23 slides along the shaft 26, and the slider 22 drives the side strip 514 to move synchronously. The side strip 514 gradually fits with the main beam plate 513, and the guard plate 516 moves accordingly. A sliding groove corresponding to the guard plate 516 is opened on the top of the cushion layer 515. The guard plate 516 slides synchronously with the side strip 514. When the side strip 514 fits and contacts with the main beam plate 513, the welding rod 7 is finally used to complete the assembly welding, thereby improving the welding effect of the equipment.

[0038] Example 2: Please refer to Figure 1 , Fig.10 - Fig.11 The present invention provides a technical solution: a stand 3 is fixedly installed on both sides of the front and back sides of the top of the base 1, and a swing device 4 is movably installed on the top of the stand 3, and the swing device 4 is used to adjust the state of cleaning oil stains;

[0039] The swinging device 4 includes a cylinder 41, which is located in the inner cavity of the stand 3. A sheet 43 is movably installed in the inner cavity of the cylinder 41. A thin rod 42 is movably inserted at the axis of the sheet 43. A push block 46 is fixedly connected to the top of the thin rod 42. The end of the thin rod 42 away from the push block 46 is fixedly connected to the side plate 44. A fan sheet 45 is movably inserted at the bottom of the side plate 44. The fan sheet 45 is squeezed to form a function of pushing the side plate 44. The side plate 44 pushes the thin rod 42, and the push block 46 grasps the oil stains in the middle of the main beam plate 513 along with the thin rod 42 to absorb the oil stains. The diameter of the sheet 43 is larger than that of the thin rod 42. The fan sheet 45 is embedded in the middle of the inner cavity of the side plate 44, and the inside of the sheet 43 is hollow.

[0040] When welding, due to stains on the side of the main beam plate 513, welding pores are sometimes prone to occur. Therefore, when it is necessary to deal with oil stains, the mounting seat 511 moves under the torsion of the spiral rod 53, and the mounting seat 511 is displaced in the direction close to the vertical seat 21. When the mounting seat 511 is displaced, it gradually contacts the outer wall of the fan blade 45. The fan blade 45 is squeezed to form a pushing effect of the side plate 44. The side plate 44 pushes the thin rod 42, and the push block 46 grasps the oil stains in the middle of the main beam plate 513 along with the thin rod 42 to absorb and treat, thereby improving the cleanliness of the equipment and achieving the effect of avoiding welding pores caused by oil stains.

[0041] Example 3: Please refer to Figure 1 - Fig.11 The present invention provides a technical solution: on the basis of embodiment 1, a welding device 5 is movably installed on the side of the front of the machine base 1 away from the distance adjusting device 2, and the welding device 5 and the distance adjusting device 2 are opposite to each other. The welding device 5 is used to adjust the horizontal distance and the extrusion state during welding. A placement plate 6 is fixedly connected to the top of the welding device 5, and a welding rod 7 is fixedly installed on the side of the middle of the top of the placement plate 6 close to the distance adjusting device 2;

[0042] The welding device 5 includes a clamping device 51, in which a spiral rod 53 is rotatably installed in the inner cavity of the clamping device 51. The spiral rod 53 moves through the interior of the plate 54, and the spiral rod 53 rotates to link with the swing piece 57 and runs synchronously. The swing piece 57 rotates to gradually generate wind force. The bottom end of the clamping device 51 is fixedly connected to the middle stack 52, and the plate 54 is fixedly installed in the middle of the side of the spiral rod 53 close to the distance adjustment device 2. The end of the plate 54 away from the clamping device 51 is fixedly connected to an auxiliary strip 55, and the top of the auxiliary strip 55 is fixedly connected to an arc body 58. The outer surface of the spiral rod 53 is rotatably installed with a swing piece 57.

[0043] A notch corresponding to the screw rod 53 is provided in the middle of one side of the plate 54 close to the arc body 58, the center lines of the throw-off piece 57 and the screw rod 53 are in the same straight line, the screw rod 53 passes through the inner cavity of the clamping device 51, and the clamping device 51 also includes a mounting seat 511, a box body 512 is movably installed in the middle of the top of the mounting seat 511, and the box body 512 is located in the middle of the side close to the distance adjustment device 2, a main beam plate 513 is fixedly installed on the side of the box body 512 away from the mounting seat 511, a cushion layer 515 is movably installed under the box body 512, a guard plate 516 is slidably installed on the top of the cushion layer 515, and a side guard plate 516 is fixedly installed on the side away from the mounting seat 511 The strip 514 and the side strip 514 are gradually fitted with the main beam 513, and the guard plate 516 moves accordingly. A slide groove corresponding to the guard plate 516 is opened on the top of the cushion layer 515, and the guard plate 516 slides synchronously with the side strip 514. The main beam 513 passes through the interior of the box body 512, and the cushion layer 515 passes through the top inner cavity of the mounting seat 511. There are two side strips 514, and the side strips 514 are located on the front and back sides of the box body 512. The height of the side strip 514 is lower than that of the main beam 513. The center lines of the side strip 514, the main beam 513 and the box body 512 are all on the same straight line, and adhesive is coated between the box body 512 and the mounting seat 511.

[0044] The device mainly uses the torsional force of the spiral rod 53 to fix the cylindrical steel truss workpiece, and then welds it through the welding rod 7. When facing the arc-shaped steel truss workpiece, the clamping is completed by adjusting the distance on both sides to ensure that there is no welding deviation, and the humidity in the welding environment is improved by adjusting the force.

[0045] When in use, first place the device in the middle of the arc 58, start the servo motor, connect one end of the screw rod 53 to the output end of the motor, and the screw rod 53 rotates counterclockwise when energized. The screw rod 53 rotates and gradually twists. Corresponding reverse textures are provided between the screw rod 53 and the mounting seat 511, and a slide groove corresponding to the arc 58 is provided on the machine base 1, so that the device has the basic conditions for quickly adjusting the spacing and achieving the purpose of rapid processing.

[0046] When the distance needs to be adjusted, the spiral rod 53 is energized and rotates counterclockwise. The spiral rod 53 rotates and gradually penetrates the interior of the clamping device 51. The spiral rod 53 continues to twist and pushes the arc 58 to move. The auxiliary bar 55 is displaced synchronously with the spiral rod 53. The auxiliary bar 55 is convenient for supporting the arc 58. The distance between the arc 58 and the other part gradually decreases. The arc 58 gradually positions the cylindrical workpiece placed in the middle, and the cylindrical workpiece is welded by the welding rod 7, thereby ensuring that the equipment has the function of rapid clamping and achieving the purpose of rapid lifting and positioning adjustment.

[0047] When the surrounding environment of the welding group needs to be processed, the spiral rod 53 rotates counterclockwise, and the spiral rod 53 rotates and moves. The displacement of the spiral rod 53 penetrates the interior of the plate 54 and moves. The rotation of the spiral rod 53 links with the swinging piece 57 and runs synchronously. The rotation of the swinging piece 57 gradually generates wind force, and the wind force gradually blows the workpiece in the middle of the arc 58, thereby reducing the humidity in the welding environment and improving the processing purpose.

[0048] When it is necessary to process the arc-shaped steel truss workpiece, first put the arc-shaped steel truss workpiece on the main beam plate 513, and then use external force to drag the mounting seat 511 to move, the mounting seat 511 drags the middle stack 52 and moves synchronously, the middle stack 52 slides along the middle groove of the machine base 1, the middle stack 52 pulls the base 20 to move, the base 20 drives the vertical seat 21 to move synchronously, the vertical seat 21 forms a direction toward the placement plate 6, the vertical seat 21 moves in conjunction with the slider 22, the slider 22 gradually squeezes the main beam plate 513, the top of the main beam plate 513 is squeezed and the overall distance is shortened, thereby ensuring that both ends of the equipment have a stable squeezing effect of the main beam plate 513 to prevent loosening at the front and back.

[0049] When the arc-shaped steel truss workpiece needs to be assembled, the slider 22 is displaced by the torsional action of the adjusting rod 24, and the slider 22 is gradually linked to the push plate 23 to move synchronously when it is displaced. The push plate 23 slides along the shaft 26, and the slider 22 drives the side strip 514 to move synchronously. The side strip 514 gradually fits with the main beam plate 513, and the guard plate 516 moves accordingly. A sliding groove corresponding to the guard plate 516 is opened on the top of the cushion layer 515. The guard plate 516 slides synchronously with the side strip 514. When the side strip 514 fits and contacts with the main beam plate 513, the welding rod 7 is finally used to complete the assembly welding, thereby improving the welding effect of the equipment.

[0050] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An angle steel assembly welding device for steel trusses, specifically comprising: A machine base (1), wherein a distance adjusting device (2) is movably mounted in the inner cavity of the machine base (1), and the distance adjusting device (2) is used to assist in adjusting the longitudinal distance of the angle steel workpiece. A stand (3) is fixedly mounted on both sides of the front and back sides of the top of the machine base (1), and is characterized in that: a swing device (4) is movably mounted on the top of the stand (3), and the swing device (4) is used to adjust the state of cleaning oil stains. A welding device (5) is movably mounted on the side of the front of the machine base (1) away from the distance adjusting device (2), and the welding device (5) and the distance adjusting device (2) are opposite to each other. The welding device (5) is used to adjust the horizontal distance and the extrusion state during welding. The top of the welding device (5) is fixedly connected to a placement plate (6), and a welding rod (7) is fixedly mounted on the middle of the top of the placement plate (6) close to the distance adjusting device (2); The welding device (5) comprises a clamping device (51), wherein a spiral rod (53) is rotatably mounted in the inner cavity of the clamping device (51), a middle laminate (52) is fixedly connected to the bottom end of the clamping device (51), a pasting plate (54) is fixedly mounted in the middle of a side of the spiral rod (53) close to the distance adjustment device (2), an auxiliary strip (55) is fixedly connected to the end of the pasting plate (54) away from the clamping device (51), an arc body (58) is fixedly connected to the top end of the auxiliary strip (55), a swinging piece (57) is rotatably mounted on the outer surface of the spiral rod (53), the spiral rod (53) rotates in conjunction with the swinging piece (57) to operate synchronously, the swinging piece (57) rotates to gradually generate wind force, and the wind force gradually blows the workpiece in the middle of the arc body (58); The clamping device (51) further comprises a mounting seat (511), a box body (512) being movably mounted in the middle of the top of the mounting seat (511), and the box body (512) being located in the middle of a side close to the distance adjusting device (2), a main beam plate (513) being fixedly mounted on a side of the box body (512) away from the mounting seat (511), a cushion layer (515) being movably mounted below the box body (512), a guard plate (516) being slidably mounted on the top of the cushion layer (515), and a side strip (514) being fixedly mounted on a side of the guard plate (516) away from the mounting seat (511); The main beam plate (513) passes through the interior of the box body (512), and the cushion layer (515) passes through the top inner cavity of the mounting seat (511). There are two side strips (514), and the side strips (514) are located on both sides of the front and back of the box body (512); The height of the side strip (514) is lower than the height of the main beam plate (513), and adhesive is coated between the box body (512) and the mounting seat (511).

2. The angle steel assembly welding equipment for steel truss manufacturing according to claim 1 is characterized by: A notch corresponding to the screw rod (53) is provided in the middle of one side of the sticking plate (54) close to the arc body (58); the center lines of the swinging piece (57) and the screw rod (53) are on the same straight line; and the screw rod (53) passes through the inner cavity of the clamping device (51).

3. The angle steel assembly welding equipment for steel truss manufacturing according to claim 1 is characterized by: The main beam plate (513) further comprises a base (20), a vertical seat (21) being fixedly mounted in the middle of the top of the base (20), a slider (22) being slidably connected to the top of the vertical seat (21), the slider (22) being composed of two parts, a push piece (23) being fixedly mounted on the top of one side between the two sliders (22), a shaft rod (26) being movably mounted at the inner cavity of the top of the slider (22), an adjusting rod (24) being rotatably mounted at the inner cavity of the bottom end of the slider (22), and a bolt (25) being movably mounted at the corner of the top of the vertical seat (21); The slider (22) is displaced by the twisting action of the adjusting rod (24), and the slider (22) is gradually linked to the push piece (23) to move synchronously when it is displaced. The push piece (23) slides along the shaft (26), and the slider (22) drives the side strip (514) to move synchronously. The side strip (514) is gradually fitted with the main beam plate (513). When the side strip (514) and the main beam plate (513) are fitted and contacted, the welding rod (7) is finally used to complete the assembly welding.

4. The angle steel assembly welding equipment for steel truss manufacturing according to claim 3 is characterized by: There are two bolts (25) in total, and the bolts (25) are symmetrically designed with the center line of the vertical seat (21) as a reference. A sliding groove corresponding to the sliding block (22) is provided in the middle of the inner cavity of the vertical seat (21).

5. The angle steel assembly welding equipment for steel truss manufacturing according to claim 1 is characterized by: The swinging device (4) comprises a cylinder (41), the cylinder (41) being located in the inner cavity of the stand (3), a sheet (43) being movably mounted in the inner cavity of the cylinder (41), a thin rod (42) being movably plugged into the axis of the sheet (43), a push block (46) being fixedly connected to the top end of the thin rod (42), an end of the thin rod (42) away from the push block (46) being fixedly connected to a side plate (44), and a fan plate (45) being movably plugged into the bottom end of the side plate (44).

6. The angle steel assembly welding equipment for steel truss manufacturing according to claim 5 is characterized by: The diameter of the sheet body (43) is larger than the diameter of the thin rod (42); the fan sheet (45) is embedded and installed in the middle of the inner cavity of the side plate (44); and the interior of the sheet body (43) is hollow.

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