Automatic discharging and welding equipment

Abstract

The invention discloses automatic blanking welding equipment, and relates to the technical field of welding equipment, the automatic blanking welding equipment comprises an operation platform, a welding mechanism, two groups of movable clamps and a covering protection mechanism, the welding mechanism comprises a welding seat and a welding machine, the movable clamps comprise electric slide rails, and a three-jaw chuck is fixed on an output shaft of a driving motor; through the arrangement of the covering protection mechanism, when a to-be-welded automobile pipe fitting enters the inner side of the welding seat under the action of an electric sliding rail, an extrusion type power part in the covering protection mechanism is extruded by the pipe fitting in advance to act on two movable covering plates to relatively slide until silica gel pads on the opposite surfaces of the two movable covering plates are attached; in this way, the silica gel pad makes contact with the pipe fitting and is extruded to form the groove, the outer wall of the pipe fitting is wrapped with the groove, then a spray head of the welding machine can be effectively isolated from the outside, and it is avoided that a large amount of welding slag generated in the welding operation process of the welding machine is splashed outwards and attached to the surface of the electric sliding rail, and the use effect of the electric sliding rail is affected.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to automatic blanking welding equipment. Background Art

[0002] In the prior art, the welding equipment for butt welding of automobile pipes and rods is equipped with a mobile fixture on the operating platform to facilitate loading and unloading of automobile pipes and rods. The mobile fixture is used to replace manual labor to easily move the workpiece to be welded in and out of the welding machine. Compared with the traditional fixed fixture, it is convenient for manual labor to replace the workpiece at a place far away from the welding machine, avoiding the workpiece to be disassembled and assembled directly under the welding head of the welding machine and being burned by the high-temperature welding head after the operation.

[0003] However, when using a mobile fixture, an electric slide rail will be installed on the operating table of conventional welding equipment. As a highly precise electrical device, the surface of the electric slide rail is easily adhered to by a large amount of welding slag during welding operations. The presence of welding slag will seriously affect the smooth coordination between the slide rail and the slider, and affect the service life of the electric slide rail. Summary of the invention

[0004] In order to solve the above technical problems, an automatic unloading welding equipment is provided, which solves the problem in the prior art that during welding operations, the surface of the electric slide rail of the mobile fixture is easily adhered to by a large amount of welding slag, and the presence of welding slag seriously affects the smooth coordination between the slide rail and the slider, thereby affecting the service life of the electric slide rail.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: an automatic material unloading welding equipment, including an operating platform, a welding mechanism for welding butt joints of automobile pipes, a moving fixture for assisting the movement of automobile pipes, and a covering and protection mechanism for preventing welding slag from adhering to the surface of the electric slide rail;

[0006] The welding mechanism comprises a welding seat fixed to one side of the top surface of the operating platform in a C-shape and a welding machine installed on the top of the welding seat;

[0007] There are two groups of mobile fixtures, which are respectively located at the front and rear sides of the welding seat. The mobile fixtures include an electric slide rail installed transversely on the top surface of the operating platform, an electric slide seat is slidably arranged on the electric slide rail, a driving motor is installed on the top of the electric slide seat, and a three-jaw chuck is fixed on the output shaft of the driving motor;

[0008] The covering protection mechanism comprises two C-shaped movable shields symmetrically arranged on the outer wall of the opening of the welding seat, and a silicone pad is glued to the corresponding end surface of the two movable shields. The inner side of the welding seat is provided with an extrusion power component for causing the two movable shields to slide towards each other;

[0009] The extrusion type power component is composed of a movable traction component and two groups of elastic rotation components. The movable traction component is located between the two groups of elastic rotation components. The two groups of elastic rotation components are symmetrically distributed up and down and correspond to the two movable shutters one by one.

[0010] Preferably, the elastic rotating assembly includes two connecting seats symmetrically fixed on the inner wall of the welding seat, a movable rotating cylinder rotatably arranged between the two groups of the connecting seats, and a transmission gear tightly sleeved on the middle part of the movable rotating cylinder body, and a transmission rack meshing with the transmission gear is fixedly embedded on the inner wall of the movable baffle.

[0011] Preferably, the movable traction assembly comprises a pressure plate slidably disposed in the opening of the welding seat, traction plates are vertically fixed on both sides of the pressure plate, a side of the pressure plate facing the opening of the welding seat is open, and a grinding belt is disposed in the opening of the pressure plate;

[0012] The two ends of the frosting belt are fixed by Velcro to form a runway shape, and two rollers are symmetrically rotated between the inner walls of the two ends of the pressure plate. The runway-shaped frosting belt is transmission-connected between the two rollers, and a one-way transmission component for driving and converting the frosting belt is provided at the bottom of the pressure plate.

[0013] Preferably, the elastic rotating assembly further comprises two line rollers respectively tightly sleeved on both sides of the movable rotating drum body and a traction rope wound around the line roller bodies, and the end of the traction rope is fixedly connected to the traction pull plate.

[0014] Preferably, a fixing rod is laterally arranged on the inner side of the movable rotating cylinder, and the two ends of the fixing rod are respectively fixed and pass through the two connecting seats, and a torsion spring is sleeved on the rod body of the fixing rod, and the two ends of the torsion spring are respectively fixedly connected to the outer wall of the fixing rod and the inner wall of the movable rotating cylinder.

[0015] Preferably, the one-way transmission component includes a driven column rotatably arranged in the middle of the bottom surface of the pressure plate, a driving column rotatably arranged on one side of the bottom surface of the pressure plate, and a transmission belt connected between the driving column and the driven column, and one end of the driving column rotates to penetrate into the pressure plate and is fixedly connected to the bottom end of one of the rollers.

[0016] Preferably, a fixing ring is sleeved on the rod body at the bottom of the driven column, a connecting frame is fixedly connected between the top surface of the fixing ring and the pressure plate, the bottom surface of the fixing ring is rotatably connected to a knob sleeve, a force gear is tightly sleeved on the cylinder wall of the knob sleeve, a force rack fixedly connected to the inner wall of the bottom end of the welding seat is arranged below the welding machine nozzle, and the force rack and the force gear can mesh with each other, a rubber ring is sleeved on the rod body at the top of the driven column, and the rubber ring is fixedly connected to the bottom surface of the pressure plate.

[0017] Preferably, a plurality of connecting teeth are fixed around the inner wall of the knob sleeve, a movable block is arranged between two adjacent connecting teeth, the connecting teeth and the movable block are both in the shape of a right-angled trapezoid, the hypotenuse of the connecting teeth corresponds to the hypotenuse of one of the movable blocks, a contraction groove is provided on the rod body of the driven column located on the inner side of the knob sleeve, the movable block is inserted into the contraction groove and is fixed with a compression spring, and the end of the compression spring is fixedly connected to the innermost inner wall of the contraction groove.

[0018] Preferably, the inner walls at both ends of the welding seat are provided with sliding slots matched with the traction pull plate, and the traction pull plate slides between the two sliding slots.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) By setting up the covering and protecting mechanism, when the automobile pipe to be welded enters the inner side of the welding seat by the action of the electric slide rail, the extrusion-type power component in the covering and protecting mechanism is squeezed by the pipe in advance, and the two movable shutters slide relative to each other until the silicone pads on the opposite sides of the two movable shutters are fitted, so that the silicone pad contacts the pipe and is squeezed to form a groove, and the outer wall of the pipe is wrapped by the groove, thereby effectively isolating the nozzle of the welding machine from the outside world, avoiding a large amount of welding slag generated during the welding operation of the welding machine from splashing and adhering to the surface of the electric slide rail, thereby affecting the use effect of the electric slide rail.

[0021] (2) By setting the grinding belt, when the pipe is inserted into the inner side of the welding seat and contacts the pressure plate, the grinding belt can contact the joint of the two pipes at the same time. Then, when the two pipes rotate and are evenly welded by the welding machine, the grinding belt can continuously grind the weld between the two pipes, so that the pipe can be welded and grinded at the same time. In this way, the subsequent grinding process of the weld of the pipe is reduced while the quality of the weld of the pipe is guaranteed, thereby reducing manpower.

[0022] (3) Through the setting of the one-way transmission component, when the pipe fitting enters the inner side of the welding seat and squeezes the pressure plate to move deep into the inner side of the welding seat, the one-way transmission component can drive one of the rollers on the inner side of the pressure plate, and then run the grinding belt to a certain extent, so as to prevent the wear marks caused by the previous grinding of the pipe fitting on the surface of the grinding belt from corresponding to the weld of the new pipe again, so as to ensure the grinding quality of the new pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the welding mechanism structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the welding seat of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0027] Figure 5 This is a schematic diagram of the internal structure of the shrinkage groove of the present invention;

[0028] Figure 6 It is a schematic diagram of the internal structure of the connecting seat, movable rotating drum and wire roller of the present invention.

[0029] The numbers in the figure are:

[0030] 1. Operating platform; 2. Electric slide rail; 3. Electric slide seat; 4. Driving motor; 5. Three-jaw chuck; 6. Welding seat; 7. Welding machine; 8. Movable shield; 9. Silicone pad; 10. Connecting seat; 11. Movable rotating drum; 12. Line roller; 13. Traction rope; 14. Fixed rod; 15. Torsion spring; 16. Transmission gear; 17. Transmission rack; 18. Pressure plate; 19. Traction pull plate; 20. Abrasive belt; 21. Driving column; 22. Driven column; 23. Transmission belt; 24. Knob sleeve; 25. Force gear; 26. Fixed ring; 27. Connecting frame; 28. Force rack; 29. ​​Connecting teeth; 30. Movable block; 31. Compression spring; 32. Rubber ring. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] Reference Figure 1-5 As shown, an automatic material cutting and welding device comprises an operating platform 1, a welding mechanism for welding butt joints of automobile pipes, and a moving fixture for assisting the movement of automobile pipes;

[0033] The welding mechanism includes a welding seat 6 fixed to one side of the top surface of the operating platform 1 in a C-shape and a welding machine 7 installed on the top of the welding seat 6;

[0034] There are two groups of mobile clamps, which are respectively located at the front and rear sides of the welding seat 6;

[0035] The mobile fixture includes an electric slide rail 2 installed transversely on the top surface of the operating platform 1, an electric slide seat 3 is slidably arranged on the electric slide rail 2, a driving motor 4 is installed on the top of the electric slide seat 3, and a three-jaw chuck 5 is fixed to the output shaft of the driving motor 4, and the three-jaw chuck 5 faces the middle of the operating platform 1;

[0036] When in use, the three-jaw chucks 5 on the two sets of mobile clamps can be used to clamp the two sets of automobile pipes from the ends, and the two sets of automobile pipes can be butted and fitted, and then the electric slide rails 2 of the two sets of mobile clamps can be opened synchronously to cause the two sets of automobile pipes to enter the inner side of the welding seat 6 synchronously;

[0037] Then, the welding machine 7 and the driving motor 4 on the mobile fixture are turned on, and the nozzle of the welding machine 7 continuously performs jet welding on the butt joints of the two groups of automobile pipes, and the driving motor 4 causes the three-jaw chuck 5 and the automobile pipe to continuously rotate, so that the welding machine 7 welds the butt joints of the two groups of automobile pipes uniformly, thereby ensuring the welding quality;

[0038] After welding is completed, the electric slide rail 2 is turned on again, and the electric slide seat 3 carrying the drive motor 4, the three-jaw chuck 5 and the welded pipe fittings are automatically withdrawn from the inner side of the welding seat 6 as a whole, which is convenient for manual unloading.

[0039] However, during welding, a large amount of welding slag is easily attached to the surface of the electric slide rail 2. The presence of welding slag seriously affects the smooth cooperation between the electric slide rail 2 and the electric slide seat 3, and affects the service life of the electric slide rail 2.

[0040] For this purpose, refer to Figure 2-5 As shown, it is worth noting that it also includes a covering and protection mechanism for preventing welding slag from adhering to the surface of the electric slide rail 2;

[0041] The covering protection mechanism includes two C-shaped movable shields 8 symmetrically arranged on the outer wall of the opening of the welding seat 6, and a silicone pad 9 is glued to the corresponding end surface of the two movable shields 8. The inner side of the welding seat 6 is provided with an extrusion power component for causing the two movable shields 8 to slide toward each other;

[0042] By setting the covering and protecting mechanism, when the automobile pipe to be welded is driven by the electric slide rail 2 to enter the inner side of the welding seat 6, the extrusion-type power component in the covering and protecting mechanism is squeezed by the pipe in advance, and the two movable shutters 8 are driven to slide relative to each other until the silicone pads 9 on the opposite sides of the two movable shutters 8 are fitted, so that the silicone pads 9 contact the pipe and are squeezed to form a groove, and the outer wall of the pipe is wrapped by the groove, thereby effectively isolating the nozzle of the welding machine 7 from the outside world, avoiding the large amount of welding slag generated during the welding operation of the welding machine 7 from splashing and adhering to the surface of the electric slide rail 2, thereby affecting the use effect of the electric slide rail 2.

[0043] Further, refer to Figure 4 and Figure 6As shown, it is worth noting that the extrusion type power component is composed of a movable traction component and two sets of elastic rotation components. The movable traction component is located between the two sets of elastic rotation components. The two sets of elastic rotation components are symmetrically distributed up and down and correspond to the two movable shutters 8 one by one.

[0044] The elastic rotating assembly includes two connecting seats 10 symmetrically fixed on the inner wall of the welding seat 6, a movable rotating cylinder 11 rotatably arranged between the two sets of connecting seats 10, and a transmission gear 16 tightly sleeved on the middle part of the cylinder body of the movable rotating cylinder 11. A transmission rack 17 meshing with the transmission gear 16 is fixedly embedded on the inner wall of the movable shutter 8;

[0045] The movable traction assembly includes a pressure plate 18 slidably disposed in the opening of the welding seat 6, and traction plates 19 are vertically fixed on both sides of the pressure plate 18;

[0046] The elastic rotating assembly also includes two wire rollers 12 respectively fastened to both sides of the movable rotating drum 11 and a traction rope 13 wound around the wire roller 12, and the end of the traction rope 13 is fixedly connected to the traction pull plate 19;

[0047] When the automobile pipe fittings enter the inner side of the welding seat 6 and slide to the bottom of the nozzle of the welding machine 7, the automobile pipe fittings pre-extrude the pressure plate 18 in the movable traction assembly, so that the pressure plate 18 is forced to move deep inside the welding seat 6. During this period, the traction pull plate 19 synchronously pulls the traction ropes 13 in the two sets of elastic rotating assemblies, so that the two line rollers 12 and the movable rotating drum 11 rotate as a whole, and then the transmission gears 16 in the two sets of elastic rotating assemblies rotate synchronously in the opposite direction and mesh with the corresponding transmission rack 17. In this way, the two movable shutters 8 are synchronously forced to slide close to each other.

[0048] Further, refer to Figure 4 As shown, it is worth noting that the inner walls at both ends of the welding seat 6 are provided with sliding slots adapted to the traction plate 19, and the traction plate 19 slides between the two sliding slots;

[0049] By setting the sliding seam, the moving track of the traction plate 19 and the pressure plate 18 as a whole can be effectively limited when the traction plate 19 slides, thereby ensuring the stability of the pressure plate 18 when it slides under pressure.

[0050] Further, refer to Figure 4 and Figure 6 As shown, it is worth noting that a fixing rod 14 is transversely arranged on the inner side of the movable rotating cylinder 11, and the two ends of the fixing rod 14 are respectively fixedly passed through the two connecting seats 10, and a torsion spring 15 is sleeved on the rod body of the fixing rod 14, and the two ends of the torsion spring 15 are respectively fixedly connected to the outer wall of the fixing rod 14 and the inner wall of the movable rotating cylinder 11;

[0051] Through the setting of the torsion spring 15, the pressure plate 18 is forced to move deep inside the welding seat 6, and the traction plate 19 pulls the traction rope 13. When the action line roller 12 and the movable rotating drum 11 rotate as a whole, the movable rotating drum 11 can synchronously twist the torsion spring 15 on the rod body of the fixed rod 14, so that the torsion spring 15 is deformed;

[0052] Then, by utilizing the elastic force of the torsion spring 15, when the pipe fitting is welded and slides out from the inner side of the welding seat 6, the pipe fitting reduces the squeezing of the pressure plate 18, and the movable rotating drum 11 can quickly rotate and reel in the traction rope 13 under the elastic force of the torsion spring 15, and pull the traction pull plate 19 in the reverse direction, so that the pressure plate 18 is reset for secondary use, and the transmission gear 16 reversely meshes with the transmission rack 17, so that the two movable shielding plates 8 and the silicone pad 9 move away from each other, thereby releasing the seal on the inner side of the welding seat 6.

[0053] In addition, refer to Figure 4 and Figure 5 As shown, it is worth noting that the side of the pressure plate 18 facing the welding seat 6 is open, and a grinding belt 20 is arranged in the opening of the pressure plate 18;

[0054] By setting the grinding belt 20, when the pipe is inserted into the inner side of the welding seat 6 and contacts the pressure plate 18, the grinding belt 20 can contact the joint of the two pipes at the same time, and then in the process of the two pipes rotating and being evenly welded by the welding machine 7, the grinding belt 20 can continuously grind the weld between the two pipes, so that the pipe can be welded and grinded at the same time, thereby reducing the subsequent grinding process of the weld of the pipe while ensuring the quality of the weld of the pipe, and reducing manpower.

[0055] Further, refer to Figure 4 As shown, it is worth noting that the two ends of the sanding belt 20 are fixed by Velcro to form a runway shape, and two rollers are symmetrically rotated between the inner walls of the two ends of the pressure plate 18, and the runway-shaped sanding belt 20 is transmission-connected between the two rollers, and a one-way transmission component for driving and converting the sanding belt 20 is provided at the bottom of the pressure plate 18;

[0056] Through the setting of the one-way transmission component, when the pipe enters the inner side of the welding seat 6 and squeezes the pressure plate 18 to move deep into the inner side of the welding seat 6, the one-way transmission component can drive one of the rollers inside the pressure plate 18, and then the grinding belt 20 is operated to a certain extent, so as to prevent the grinding marks caused by the previous grinding of the pipe on the surface of the grinding belt 20 from corresponding to the weld of the new pipe again, so as to ensure the grinding quality of the new pipe;

[0057] And after the sanding belt 20 is used for sanding for multiple times, the two ends of the sanding belt 20 can be disconnected manually by Velcro, and then the sanding belt 20 can be disassembled and replaced.

[0058] Further, refer to Figure 4 and Figure 5As shown, it is worth noting that the one-way transmission component includes a driven column 22 rotatably arranged in the middle of the bottom surface of the pressure plate 18, a driving column 21 rotatably arranged on one side of the bottom surface of the pressure plate 18, and a transmission belt 23 connected between the driving column 21 and the driven column 22, one end of the driving column 21 is rotatably inserted into the pressure plate 18 and fixedly connected to the bottom end of one of the rollers;

[0059] A fixing ring 26 is sleeved on the rod body at the bottom of the driven column 22, a connecting frame 27 is fixedly connected between the top surface of the fixing ring 26 and the pressure plate 18, a knob sleeve 24 is rotatably connected to the bottom surface of the fixing ring 26, a force-bearing gear 25 is tightly sleeved on the cylinder wall of the knob sleeve 24, and a force-applying rack 28 fixedly connected to the inner wall of the bottom end of the welding seat 6 is arranged below the nozzle of the welding machine 7, and the force-applying rack 28 and the force-bearing gear 25 can mesh with each other;

[0060] A plurality of connecting teeth 29 are fixed around the inner wall of the knob sleeve 24, and a movable block 30 is arranged between two adjacent connecting teeth 29. The connecting teeth 29 and the movable block 30 are both in the shape of a right-angled trapezoid, and the hypotenuse of the connecting teeth 29 corresponds to the hypotenuse of one of the movable blocks 30. A contraction groove is provided on the rod body of the driven column 22 located on the inner side of the knob sleeve 24, and the movable block 30 penetrates into the contraction groove and is fixed with a compression spring 31, and the end of the compression spring 31 is fixedly connected to the innermost inner wall of the contraction groove;

[0061] When the pressure plate 18 is squeezed and retracted toward the inner side of the welding seat 6, the driven column 22 can slide in the same direction as the pressure plate 18, during which the force-bearing gear 25 and the force-applying rack 28 are meshed, thereby causing the knob sleeve 24 to rotate counterclockwise, so that one of the connecting teeth 29 abuts against the plane of the movable block 30, so that the knob sleeve 24 is driven by the movable block 30 to carry the driven column 22 to rotate, and the driven column 22 is driven by the driving belt 23 to drive the driving column 21 and the roller connected thereto, so as to operate the grinding belt 20 and switch the surface position where the grinding belt 20 contacts the pipe fitting;

[0062] On the contrary, when the pipe is completed and withdrawn from the inner side of the welding seat 6, the driven column 22 slides along with the pressure plate 18 to reset, the force gear 25 and the force rack 28 mesh in the opposite direction, so that the knob sleeve 24 is reversed, so that the beveled edges of several connecting teeth 29 contact the beveled edges of the movable block 30 in turn. In this way, the movable block 30 is repeatedly squeezed and contracted in the contraction groove and the compression spring 31 is deformed, thereby maintaining relative fixity to the driven column 22, so that the grinding belt 20 does not operate when the pressure plate 18 is reset, so as to avoid replacing the wear marks produced by the first processing on its surface to the original position, which is not conducive to secondary use.

[0063] Further, refer to Figure 4 As shown, it is worth noting that a rubber ring 32 is sleeved on the rod body at the top of the driven column 22, and the rubber ring 32 is fixedly connected to the bottom surface of the pressure plate 18;

[0064] Through the provision of the rubber ring 32, as shown above, when the pipe is completed from the inner side of the welding seat 6, the driven column 22 is operated to slide along with the pressure plate 18 to return to the original position, so that the beveled edges of the plurality of connecting teeth 29 contact the beveled edges of the movable block 30 in sequence, and the inner wall of the rubber ring 32 contacts the rod body of the driven column 22. The friction characteristics of the rubber material are utilized to brake the driven column 22 to a certain extent, so as to prevent the driven column 22 from deflecting during this process and affecting the use effect.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic blanking welding equipment, characterized in that: It comprises an operating platform (1), a welding mechanism for welding butt joints of automobile pipes, a moving fixture for assisting the movement of the automobile pipes, and a covering and protection mechanism for preventing welding slag from adhering to the surface of the electric slide rail (2); The welding mechanism comprises a welding seat (6) fixed to one side of the top surface of the operating platform (1) in a C-shape and a welding machine (7) installed on the top of the welding seat (6); The movable clamps are in two groups, and the two groups of movable clamps are respectively located at the front and rear sides of the welding seat (6). The movable clamps include an electric slide rail (2) installed transversely on the top surface of the operating platform (1), an electric slide seat (3) is slidably arranged on the electric slide rail (2), a driving motor (4) is installed at the top of the electric slide seat (3), and a three-jaw chuck (5) is fixed to the output shaft of the driving motor (4); The covering protection mechanism comprises two C-shaped movable shielding plates (8) symmetrically arranged on the outer wall of the opening of the welding seat (6) and slidingly arranged, and a silicone pad (9) is glued to the corresponding end surfaces of the two movable shielding plates (8), and an extrusion power component for causing the two movable shielding plates (8) to slide towards each other is arranged on the inner side of the welding seat (6); The extrusion type power component is composed of a movable traction component and two groups of elastic rotation components. The movable traction component is located between the two groups of elastic rotation components. The two groups of elastic rotation components are symmetrically distributed up and down and correspond to the two movable shutters (8) one by one.

2. The automatic blanking welding equipment according to claim 1, characterized in that: The elastic rotating assembly comprises two connecting seats (10) symmetrically fixed on the inner wall of the welding seat (6), a movable rotating cylinder (11) rotatably arranged between the two sets of the connecting seats (10), and a transmission gear (16) tightly sleeved on the middle part of the barrel of the movable rotating cylinder (11), and a transmission rack (17) meshing with the transmission gear (16) is fixedly embedded on the inner wall of the movable shutter (8).

3. The automatic blanking welding equipment according to claim 2, characterized in that: The movable traction assembly comprises a pressure plate (18) slidably arranged in the opening of the welding seat (6), traction plates (19) are vertically fixed on both sides of the pressure plate (18), a side of the pressure plate (18) facing the opening of the welding seat (6) is open, and a grinding belt (20) is arranged in the opening of the pressure plate (18); The two ends of the sanding belt (20) are fixed by Velcro to form a runway shape, and two rollers are symmetrically arranged between the inner walls at both ends of the pressure plate (18), and the runway-shaped sanding belt (20) is transmission-connected between the two rollers. The bottom of the pressure plate (18) is provided with a one-way transmission component for driving and converting the sanding belt (20).

4. The automatic blanking welding equipment according to claim 3 is characterized in that: The elastic rotating assembly also includes two wire rollers (12) respectively tightly sleeved on both sides of the body of the movable rotating drum (11) and a traction rope (13) wound around the body of the wire roller (12), and the end of the traction rope (13) is fixedly connected to the traction pull plate (19).

5. The automatic blanking welding equipment according to claim 2, characterized in that: A fixing rod (14) is transversely arranged on the inner side of the movable rotating cylinder (11), and the two ends of the fixing rod (14) are respectively fixedly passed through the two connecting seats (10). A torsion spring (15) is sleeved on the rod body of the fixing rod (14), and the two ends of the torsion spring (15) are respectively fixedly connected to the outer wall of the fixing rod (14) and the inner wall of the movable rotating cylinder (11).

6. The automatic blanking welding equipment according to claim 3, characterized in that: The one-way transmission component comprises a driven column (22) rotatably arranged in the middle of the bottom surface of the pressure plate (18), a driving column (21) rotatably arranged on one side of the bottom surface of the pressure plate (18), and a transmission belt (23) connected between the driving column (21) and the driven column (22), one end of the driving column (21) rotatably penetrates into the pressure plate (18) and is fixedly connected to the bottom end of one of the rollers.

7. The automatic welding equipment according to claim 6, characterized in that: A fixing ring (26) is sleeved on the rod body at the bottom of the driven column (22), a connecting frame (27) is fixedly connected between the top surface of the fixing ring (26) and the pressure plate (18), the bottom surface of the fixing ring (26) is rotatably connected with a knob sleeve (24), a force gear (25) is tightly sleeved on the cylinder wall of the knob sleeve (24), a force rack (28) fixedly connected to the inner wall of the bottom end of the welding seat (6) is arranged below the nozzle of the welding machine (7), and the force rack (28) and the force gear (25) can mesh with each other, and a rubber ring (32) is sleeved on the rod body at the top of the driven column (22), and the rubber ring (32) is fixedly connected to the bottom surface of the pressure plate (18).

8. The automatic blanking welding equipment according to claim 7, characterized in that: A plurality of connecting teeth (29) are fixed around the inner wall of the knob sleeve (24), and a movable block (30) is arranged between two adjacent connecting teeth (29). The connecting teeth (29) and the movable block (30) are both in the shape of a right-angled trapezoid, and the hypotenuse of the connecting teeth (29) corresponds to the hypotenuse of one of the movable blocks (30). A contraction groove is provided on the rod body of the driven column (22) located on the inner side of the knob sleeve (24), and the movable block (30) penetrates into the contraction groove and is fixed with a compression spring (31), and the end of the compression spring (31) is fixedly connected to the innermost inner wall of the contraction groove.

9. The automatic blanking welding equipment according to claim 3, characterized in that: Sliding slits matching the traction pull plate (19) are provided on the inner walls at both ends of the welding seat (6), and the traction pull plate (19) slides between the two sliding slits.

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