Arc welding machine with positioning function

Abstract

The present invention relates to the technical field of welding equipment, and discloses an arc welding machine with a positioning function, including a workbench, an arc welding mechanism, an automatic positioning mechanism, and a synchronous multi-stage slag removal mechanism; both ends of the top of the workbench are symmetrically and fixedly provided with side panels, the side panels are vertically arranged with the workbench, a top plate is fixedly arranged on the top of the side panels, and the arc welding mechanism is arranged on the lower side of the top plate. The arc welding machine with a positioning function of the present invention automatically welds the weld seam of the workpiece through the arc welding mechanism during welding, effectively improving the welding efficiency. While welding, the arc welding mechanism drives the automatic positioning mechanism to position and clamp the workpiece, improving the welding accuracy and facilitating the demoulding of the workpiece. When the arc welding mechanism is in operation, it also drives the synchronous multi-stage slag removal mechanism to remove the welding slag after the workpiece is welded, facilitating the next step of processing the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to an arc welding machine with a positioning function. Background Art

[0002] Welding is an important processing method. It mainly combines welded parts by heating or pressurizing, or both, with (or without) filler materials. Welding is the process of forming a joint with the help of the connection between atoms and the diffusion of particles. The joint structure has connectivity. It uses heat energy or pressure, or both, to connect the workpieces. Welding technology is widely used in many fields, such as the construction field: used for the manufacture and installation of steel structures, such as large bridges, high-rise buildings, etc.; it can also be used to connect the pipeline system inside the building, as well as repair and reinforce the damaged parts of the building; automobile manufacturing: the manufacture of automobile bodies requires a lot of welding work, such as welding the body frame, the connection of body panels, etc.; shipbuilding: the manufacture of ships requires a lot of steel to be welded together to form the structure of the hull; energy field: used in the manufacture and maintenance of equipment such as nuclear power plants, thermal power plants and wind farms, such as the manufacture of nuclear reactor pressure vessels, welding joints of power equipment, etc.; aerospace: the manufacture of aerospace vehicles requires the use of a large amount of metal materials, and requires high structural strength and light weight. Welding technology can meet these requirements and realize the connection of metal parts and the construction of the overall structure of aerospace vehicles.

[0003] At present, manual handheld welding guns are usually used for welding, which has low welding efficiency, cannot guarantee welding accuracy and strength, and wastes manpower and material resources. Therefore, an arc welding machine with a positioning function is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem that currently welding is usually carried out by manually holding a welding gun, the welding efficiency is low, the welding accuracy and strength cannot be guaranteed, and manpower and material resources are wasted, and an arc welding machine with a positioning function is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: An arc welding machine with a positioning function, comprising a workbench, an arc welding mechanism, an automatic positioning mechanism and a synchronous multi-stage slag removal mechanism; Both ends of the top of the workbench are symmetrically and fixedly provided with side panels, the side panels are arranged vertically with the workbench, a top plate is fixedly provided on the top of the side panels, the arc welding mechanism is arranged on the lower side of the top plate, a bottom bin is fixedly provided at the bottom of the workbench, the automatic positioning mechanism is arranged at the bottom of the workbench, a number of workpieces are arranged in the middle of the upper surface of the workbench, the sides of the adjacent workpieces are surrounded to form a weld, the synchronous multi-stage gate mechanism is arranged at the bottom of the arc welding mechanism, and a number of bases are fixedly provided on both sides of the bottom of the bottom bin. During welding, the weld of the workpiece is automatically welded by the arc welding mechanism, which effectively improves the welding efficiency. At the same time, the arc welding mechanism drives the automatic positioning mechanism to position and clamp the workpiece, which improves the welding accuracy and facilitates the demoulding of the workpiece. When the arc welding mechanism is in operation, it also drives the synchronous multi-stage slag removal mechanism to remove the welding slag after the workpiece is welded, which is convenient for the next step of processing the workpiece.

[0006] Furthermore, the arc welding mechanism includes a cylinder, which is fixedly arranged on the top of the top plate, the output end of the cylinder is connected to a piston rod, the bottom end of the piston rod passes through the top plate and extends to the bottom of the top plate, the piston rod is arranged vertically to the top plate, the bottom end of the piston rod is fixedly provided with a movable plate, the top two sides of the movable plate are fixedly provided with guide rods, the top end of the guide rod passes through the top plate and extends to the upper part of the top plate, the guide rod is arranged parallel to the piston rod, and both ends of the movable plate are provided with side sliders, which are slidably connected to the inner wall of the side plate. When welding, the cylinder is started to make the piston rod move downward, and when the piston rod moves downward, it drives the movable plate and the side sliders on both sides to move downward along the guide rods.

[0007] Further, a driving motor is fixedly provided at the bottom right side of the movable plate, a threaded rod is provided at the output end of the driving motor, the other end of the threaded rod is rotatably connected to the side slider on the left side, the threaded rod is vertically arranged with the side plate, a movable block is threadedly connected to the middle part of the threaded rod, a guide rail is provided at the bottom of the movable plate, the guide rail is arranged parallel to the threaded rod, the top plate of the movable block is slidably connected to the guide rail, a welding bin is provided at the middle part of the inner side of the movable block, a power supply is arranged inside the welding bin, a mounting seat is provided at the bottom of the welding bin, a welding head is provided at the bottom of the mounting seat, the welding head is located directly above the weld, and the weld is arranged parallel to the threaded rod. When the movable plate moves downward, the driving motor and the movable block at the bottom move downward, and when the movable block moves downward, the mounting seat and the welding head at the bottom move downward, and when the welding head moves to contact the weld, the cylinder stops running, and at this time the driving motor starts, driving the threaded rod to start rotating, and when the threaded rod rotates, the movable block is driven to slide to the left along the guide rail, thereby driving the welding head to weld the weld of the workpiece.

[0008] Furthermore, a pair of infrared sensors are symmetrically arranged at the bottom of the inner wall of the side plate, the infrared sensors are electrically connected to the cylinder and the drive motor, the height of the infrared sensors matches the thickness of the workpiece, and a laser rangefinder is fixedly arranged at the bottom of the right side wall of the movable block, the laser rangefinder is electrically connected to the cylinder and the drive motor. When the welding head moves to contact the weld, the infrared sensor senses the signal and transmits the signal to the cylinder and the drive motor, so that the cylinder stops running, the drive motor starts, and the movable block moves and drives the laser rangefinder to move with it. When the laser rangefinder senses that the movement distance of the movable block is consistent with the length of the weld, the signal is transmitted to the cylinder and the drive motor, so that the cylinder is reset and the drive motor stops running, thereby realizing automatic control of welding and effectively improving welding efficiency.

[0009] Furthermore, the automatic positioning mechanism includes a plurality of movable pins, which are arranged on the surface of the workbench. The surface of the workpiece is provided with a plurality of through holes, and the positions of the movable pins match the through holes. The minimum number of the movable pins is four, and the movable pins are distributed on both sides of the weld. The movable pins are arranged perpendicular to the workbench. The workpiece is positioned by the movable pins before welding, and the movable pins are inserted into the through holes at the corresponding positions during positioning.

[0010] Furthermore, an inner groove is provided inside the movable pin, a conical platform is provided inside the inner groove, the conical platform is provided in an inverted cone shape, an inner rod is connected to the bottom end of the conical platform, the inner rod extends to the bottom of the movable pin, a lifting plate is connected to the bottom end of the inner rod, the lifting plate is provided in parallel with the workbench, a telescopic rod is connected to the bottom center of the lifting plate, a collar is fixedly provided in the middle of the top movable end of the telescopic rod, a connecting rod is vertically provided at the bottom of the movable plate, the bottom end of the connecting rod passes through the workbench and extends to the inside of the bottom bin, the bottom end of the connecting rod is fixedly connected to the collar, and a plurality of reinforcing rods are fixedly provided between the outer side wall of the collar and the two sides of the bottom of the lifting plate. When the movable plate moves downward, the connecting rod is driven to move downward, so that the collar connected to the bottom end of the connecting rod moves downward, driving the telescopic rod to shorten, driving the lifting plate at the top of the telescopic rod to lower, thereby driving the inner rod connected to the top of the lifting plate to move downward, so that the conical platform moves downward in the inner groove.

[0011] Furthermore, a plurality of clamping jaws are evenly arranged on the side wall of the movable pin, a movable groove is arranged at the connection between the bottom of the clamping jaw and the movable pin, a first spring is connected between the bottom of the clamping jaw and the outer end of the movable groove, the shape of the side wall of the clamping jaw facing the conical table matches the conical table, a clamping block is fixedly arranged on the top of the outer wall of the clamping jaw, an outer sleeve is arranged on the outer side of the bottom of the movable pin, the outer sleeve is fixedly connected to the workbench, and a second spring is connected between the bottom of the movable pin and the inner bottom of the outer sleeve. When the conical table moves downward, it abuts against the inner wall of the clamping jaw, thereby generating an outward thrust on the clamping jaw, driving the clamping jaw to move outward, and the first spring is compressed, generating a thrust in the opposite direction on the clamping jaw. At this time, the clamping jaw fixes the workpiece in the horizontal direction. When the conical table and the clamping jaw move to a relative fixation, the conical table continues to move downward under the pulling force of the inner rod, causing the clamping jaw and the movable pin to move toward the bottom of the outer sleeve. The second spring is compressed, generating a thrust in the opposite direction on the movable pin. When the clamping jaw moves downward, it drives the clamping block to move downward, thereby fixing the workpiece in the vertical direction. After welding is completed, the clamping jaw and the movable pin are reset under the elastic force of the first spring and the second spring. At this time, the workpiece is separated from the movable pin and the clamping jaw. Through the above steps, automatic positioning and clamping of the workpiece can be achieved during welding, thereby improving welding accuracy and facilitating demolding of the workpiece.

[0012] Furthermore, the synchronous multi-stage slag removal mechanism includes a rack, which is fixedly arranged at the bottom of the movable plate, and the rack is arranged parallel to the guide rail. A dust removal bin is arranged on the inner left side of the movable block, and a first driving gear is arranged on the inner left side of the dust removal bin to rotate through a first rotating shaft, a first driving wheel is fixedly arranged on the top of the first driving gear, and the first driving gear is meshed with the rack, a first driven wheel is arranged on the right side of the first driving wheel to rotate through a second rotating shaft, the diameter of the first driving wheel is larger than that of the first driven wheel, and a first transmission chain is meshed between the first driving wheel and the first driven wheel, and a plurality of blades are evenly arranged on the bottom side wall of the second rotating shaft, a wind tube is sleeved on the outer side of the blade, and a universal nozzle is arranged at the bottom of the wind tube. During welding, the movement of the movable block drives the first driving gear to start moving, so that the first driving gear starts to rotate under the action of the rack, so that the first rotating shaft and the first driving wheel on the top start to rotate. When the first driving wheel rotates, it drives the first driven wheel to start rotating through the first transmission chain meshing therewith, so that the second rotating shaft and the blades at the bottom thereof start to rotate. When the blades rotate, wind force is generated, so that the airflow flows out along the nozzle in all directions, removing dust and debris on the surface of the workpiece to prevent dust from affecting the welding strength.

[0013] Further, a slag removal bin is provided on the right side of the movable block, a second driving gear is provided on the left side of the movable block to rotate through the third rotating shaft, a second driving wheel is fixedly provided on the top of the second driving gear, the second driving gear is meshed with the rack, a second driven wheel is provided on the right side of the second driving wheel to rotate through the fourth rotating shaft, the diameter of the second driving wheel is larger than the second driven wheel, a second transmission chain is provided to mesh with the second driven wheel, a grinding wheel is provided at the bottom of the fourth rotating shaft, a grinding cylinder is provided on the outside of the grinding wheel, and a movable baffle is provided at the bottom of the grinding cylinder. When the movable block moves, the second driving gear is driven to move accordingly, so that the second driving gear starts to rotate under the action of the rack, so that the third rotating shaft and the second driving wheel at the top start to rotate, and when the second driving wheel rotates, the second driven wheel is driven to rotate through the second transmission chain meshed with it, so that the fourth rotating shaft and the grinding wheel at the bottom thereof start to rotate, and the welding slag on the surface of the weld after welding is ground to remove the welding slag, so as to facilitate the next step of processing the workpiece.

[0014] Furthermore, the height of the universal nozzle and the movable baffle matches the height of the welding head.

[0015] Beneficial effects of the present invention: 1. The arc welding machine with a positioning function of the present invention automatically welds the weld seam of the workpiece through the arc welding mechanism during welding, which effectively improves the welding efficiency. While welding, the arc welding mechanism drives the automatic positioning mechanism to position and clamp the workpiece, which improves the welding accuracy and facilitates the demoulding of the workpiece. When the arc welding mechanism is in operation, it also drives the synchronous multi-stage slag removal mechanism to remove the welding slag after the workpiece is welded, which is convenient for the next step of processing the workpiece.

[0016] 2. The arc welding machine with a positioning function of the present invention is provided with an arc welding mechanism. When the welding head moves to contact the weld, the infrared sensor senses a signal and transmits the signal to the cylinder and the drive motor, so that the cylinder stops running and the drive motor starts. When the movable block moves, the laser rangefinder moves accordingly. When the laser rangefinder senses that the movement distance of the movable block is consistent with the length of the weld, the signal is transmitted to the cylinder and the drive motor, so that the cylinder is reset and the drive motor stops running, thereby realizing automatic control of welding and effectively improving welding efficiency.

[0017] 3. The arc welding machine with a positioning function of the present invention is provided with an automatic positioning mechanism, which can abut against the inner side wall of the clamping jaw when the conical table moves downward, thereby generating an outward thrust on the clamping jaw, driving the clamping jaw to move outward, and the first spring is compressed, generating a thrust in the opposite direction on the clamping jaw. At this time, the clamping jaw fixes the workpiece in the horizontal direction. When the conical table and the clamping jaw move to a relatively fixed state, the conical table continues to move downward under the pulling force of the inner rod, so that the clamping jaw and the movable pin move toward the bottom of the outer sleeve, and the second spring is compressed, generating a thrust in the opposite direction on the movable pin. When the clamping jaw moves downward, it drives the clamping block to move downward, thereby fixing the workpiece in the vertical direction. After welding is completed, the clamping jaw and the movable pin are reset under the elastic force of the first spring and the second spring. At this time, the workpiece is separated from the movable pin and the clamping jaw. Through the above steps, automatic positioning and clamping of the workpiece can be achieved during welding, thereby improving welding accuracy and facilitating demoulding of the workpiece.

[0018] 4. The arc welding machine with positioning function of the present invention is provided with a synchronous multi-stage slag removal mechanism, which can drive the blades and the grinding wheel to rotate during welding through the rotation of the first drive gear and the second drive gear, thereby achieving dust removal and cleaning of the workpiece and slag removal of the welding slag during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the arc welding machine with positioning function; Figure 2 It is a schematic diagram of the workpiece structure of the arc welding machine with positioning function from top view; Figure 3 This is a schematic diagram of the internal structure of the movable pin of the arc welding machine with positioning function; Figure 4 The present invention is a schematic diagram of the internal structure of a movable block of the arc welding machine with a positioning function.

[0020] Explanation of reference numerals: 1. workbench; 2. bottom bin; 3. base; 4. side plate; 5. top plate; 6. cylinder; 7. guide rod; 8. piston rod; 9. movable plate; 10. side slide block; 11. driving motor; 12. threaded rod; 13. guide rail; 14. movable block; 15. mounting seat; 16. welding head; 17. workpiece; 18. through hole; 19. movable pin; 20. lifting plate; 21. telescopic rod; 22. collar; 23. reinforcing rod; 24. air cylinder; 25. grinding cylinder; 26. universal nozzle; 27. movable baffle; 28. infrared sensor; 29. Laser rangefinder; 30. Welding seam; 31. Inner groove; 32. Conical table; 33. Clamping claw; 34. Clamping block; 35. Inner rod; 36. Movable groove; 37. First spring; 38. Outer sleeve; 39. Second spring; 40. Rack; 41. Dust removal chamber; 42. Welding chamber; 43. Grinding chamber; 44. First driving gear; 45. First driving wheel; 46. First transmission chain; 47. First driven wheel; 48. Blade; 49. Second driving gear; 50. Second driving wheel; 51. Second transmission chain; 52. Second driven wheel; 53. Grinding wheel. DETAILED DESCRIPTION

[0021] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0022] like Figure 1-4 As shown, an arc welding machine with a positioning function comprises a workbench 1, an arc welding mechanism, an automatic positioning mechanism and a synchronous multi-stage slag removal mechanism; The top ends of the workbench 1 are symmetrically and fixedly provided with side plates 4, the side plates 4 are arranged vertically with the workbench 1, the top of the side plates 4 is fixedly provided with a top plate 5, the arc welding mechanism is arranged at the lower side of the top plate 5, the bottom of the workbench 1 is fixedly provided with a bottom bin 2, the automatic positioning mechanism is arranged at the bottom of the workbench 1, a plurality of workpieces 17 are arranged in the middle of the upper surface of the workbench 1, the sides of the adjacent workpieces 17 are surrounded to form a weld 30, the synchronous multi-stage gate mechanism is arranged at the bottom of the arc welding mechanism, and a plurality of bases 3 are fixedly arranged on both sides of the bottom of the bottom bin 2. During welding, the weld 30 of the workpiece 17 is automatically welded by the arc welding mechanism, which effectively improves the welding efficiency. At the same time, the arc welding mechanism drives the automatic positioning mechanism to position and clamp the workpiece 17, improves the welding accuracy, and facilitates the demoulding of the workpiece 17. When the arc welding mechanism is in operation, it also drives the synchronous multi-stage slag removal mechanism to remove the welding slag after the workpiece 17 is welded, which is convenient for the next step of processing the workpiece 17.

[0023] The arc welding mechanism includes a cylinder 6, which is fixedly arranged on the top of the top plate 5, and the output end of the cylinder 6 is connected to a piston rod 8, the bottom end of the piston rod 8 penetrates the top plate 5 and extends to the bottom of the top plate 5, the piston rod 8 is arranged vertically with the top plate 5, and a movable plate 9 is fixedly arranged at the bottom end of the piston rod 8, and guide rods 7 are fixedly arranged on both sides of the top of the movable plate 9, the top end of the guide rod 7 penetrates the top plate 5 and extends to the upper part of the top plate 5, the guide rod 7 is arranged parallel to the piston rod 8, and side sliders 10 are arranged at both ends of the movable plate 9, and the side sliders 10 are slidably connected with the inner wall of the side plate 4. When the cylinder 6 is started during welding, the piston rod 8 moves downward, and when the piston rod 8 moves downward, it drives the movable plate 9 and the side sliders 10 on both sides to move downward along the guide rods 7.

[0024] A driving motor 11 is fixedly provided at the bottom right side of the movable plate 9, and a threaded rod 12 is provided at the output end of the driving motor 11. The other end of the threaded rod 12 is rotatably connected to the side slider 10 on the left side, and the threaded rod 12 is vertically arranged to the side plate 4. A movable block 14 is threadedly connected to the middle part of the threaded rod 12. A guide rail 13 is provided at the bottom of the movable plate 9, and the guide rail 13 is arranged parallel to the threaded rod 12. The top plate 5 of the movable block 14 is slidably connected to the guide rail 13. A welding bin 42 is provided at the middle part of the inner side of the movable block 14, and a power supply is provided inside the welding bin 42. A mounting seat 15 is provided at the bottom of the welding bin 42, and a welding head 16 is provided at the bottom of the mounting seat 15. The welding head 16 is located directly above the weld 30, and the weld 30 is arranged parallel to the threaded rod 12. When the movable plate 9 moves downward, it drives the driving motor 11 and the movable block 14 at the bottom to move downward. When the movable block 14 moves downward, it drives the mounting seat 15 and the welding head 16 at the bottom to move downward. When the welding head 16 moves to contact the weld 30, the cylinder 6 stops running. At this time, the driving motor 11 starts, driving the threaded rod 12 to start rotating. When the threaded rod 12 rotates, it drives the movable block 14 to slide to the left along the guide rail 13, thereby driving the welding head 16 to weld the weld 30 of the workpiece 17.

[0025] A pair of infrared sensors 28 are symmetrically arranged at the bottom of the inner side wall of the side plate 4, and the infrared sensors 28 are electrically connected to the cylinder 6 and the drive motor 11. The height of the infrared sensors 28 matches the thickness of the workpiece 17. A laser rangefinder 29 is fixedly arranged at the bottom of the right side wall of the movable block 14, and the laser rangefinder 29 is electrically connected to the cylinder 6 and the drive motor 11. When the welding head 16 moves to contact the weld 30, the infrared sensor 28 senses the signal and transmits the signal to the cylinder 6 and the drive motor 11, so that the cylinder 6 stops running, the drive motor 11 starts, and the movable block 14 moves and drives the laser rangefinder 29 to move accordingly. When the laser rangefinder 29 senses that the movement distance of the movable block 14 is consistent with the length of the weld 30, the signal is transmitted to the cylinder 6 and the drive motor 11, so that the cylinder 6 is reset and the drive motor 11 stops running, thereby realizing automatic control of welding and effectively improving welding efficiency.

[0026] The automatic positioning mechanism includes a plurality of movable pins 19, which are arranged on the surface of the workbench 1. A plurality of through holes 18 are provided on the surface of the workpiece 17. The positions of the movable pins 19 match the through holes 18. The minimum number of the movable pins 19 is four. The movable pins 19 are distributed on both sides of the weld 30. The movable pins 19 are arranged perpendicular to the workbench 1. The workpiece 17 is positioned by the movable pins 19 before welding, and the movable pins 19 are inserted into the through holes 18 at the corresponding positions during positioning.

[0027] An inner groove 31 is provided inside the movable pin 19, and a conical platform 32 is provided inside the inner groove 31. The conical platform 32 is provided in an inverted cone shape, and an inner rod 35 is connected to the bottom end of the conical platform 32. The inner rod 35 extends to the bottom of the movable pin 19, and a lifting plate 20 is connected to the bottom of the inner rod 35. The lifting plate 20 is arranged parallel to the workbench 1, and a telescopic rod 21 is connected to the bottom center of the lifting plate 20. A collar 22 is fixedly provided at the middle of the top movable end of the telescopic rod 21, and a connecting rod is vertically provided at the bottom of the movable plate 9, and the bottom end of the connecting rod passes through the workbench 1 and extends to the inside of the bottom bin 2, and the bottom end of the connecting rod is fixedly connected to the collar 22, and a plurality of reinforcing rods 23 are fixedly provided between the outer side wall of the collar 22 and the two sides of the bottom of the lifting plate 20. When the movable plate 9 moves downward, it drives the connecting rod to move downward, so that the collar 22 connected to the bottom end of the connecting rod moves downward, drives the telescopic rod 21 to shorten, drives the lifting plate 20 on the top of the telescopic rod 21 to lower, thereby drives the inner rod 35 connected to the top of the lifting plate 20 to move downward, and causes the conical platform 32 to move downward in the inner groove 31.

[0028] A plurality of jaws 33 are evenly arranged on the side wall of the movable pin 19, a movable groove 36 is arranged at the connection between the bottom of the jaw 33 and the movable pin 19, a first spring 37 is connected between the bottom of the jaw 33 and the outer end of the movable groove 36, the side wall shape of the jaw 33 facing the conical platform 32 matches the conical platform 32, a clamping block 34 is fixedly arranged on the top of the outer wall of the jaw 33, an outer sleeve 38 is arranged on the outer side of the bottom of the movable pin 19, the outer sleeve 38 is fixedly connected to the workbench 1, and a second spring 39 is connected between the bottom of the movable pin 19 and the inner bottom of the outer sleeve 38. When the cone 32 moves downward, it abuts against the inner wall of the clamping jaw 33, thereby generating an outward thrust on the clamping jaw 33, driving the clamping jaw 33 to move outward, and the first spring 37 is compressed, generating a thrust in the opposite direction on the clamping jaw 33. At this time, the clamping jaw 33 fixes the workpiece 17 in the horizontal direction. When the cone 32 and the clamping jaw 33 move to a relatively fixed position, the cone 32 continues to move downward under the pulling force of the inner rod 35, so that the clamping jaw 33 and the movable pin 19 move toward the bottom of the outer sleeve 38, and the second spring 39 is compressed, generating a thrust in the opposite direction on the movable pin 19. When the clamping jaw 33 moves downward, it drives the clamping block 34 to move downward, thereby fixing the workpiece 17 in the vertical direction. After welding is completed, the clamping jaw 33 and the movable pin 19 are reset under the elastic force of the first spring 37 and the second spring 39. At this time, the workpiece 17 is separated from the movable pin 19 and the clamping jaw 33. Through the above steps, the automatic positioning and clamping of the workpiece 17 can be achieved during welding, the welding accuracy is improved, and the demolding of the workpiece 17 is facilitated.

[0029] The synchronous multi-stage slag removal mechanism includes a rack 40, which is fixedly arranged at the bottom of the movable plate 9, and the rack 40 is arranged parallel to the guide rail 13. A dust removal bin 41 is arranged on the left side of the interior of the movable block 14, and a first driving gear 44 is arranged on the left side of the interior of the dust removal bin 41 to rotate through a first rotating shaft, a first driving wheel 45 is fixedly arranged on the top of the first driving gear 44, and the first driving gear 44 is meshed and connected with the rack 40, and a first driven wheel 47 is arranged on the right side of the first driving wheel 45 to rotate through a second rotating shaft, and the diameter of the first driving wheel 45 is larger than that of the first driven wheel 47, and a first transmission chain 46 is arranged to mesh between the first driving wheel 45 and the first driven wheel 47, and a plurality of blades 48 are evenly arranged on the side wall of the bottom end of the second rotating shaft, and a wind tube 24 is sleeved on the outer side of the blade 48, and a universal nozzle 26 is arranged at the bottom of the wind tube 24. During welding, the movable block 14 moves to drive the first driving gear 44 to start moving, so that the first driving gear 44 starts to rotate under the action of the rack 40, so that the first rotating shaft and the first driving wheel 45 on the top start to rotate. When the first driving wheel 45 rotates, it drives the first driven wheel 47 to start rotating through the first transmission chain 46 meshing therewith, so that the second rotating shaft and the blades 48 at the bottom thereof start to rotate. When the blades 48 rotate, wind force is generated, so that the airflow flows out along the nozzle in all directions, removing dust and debris on the surface of the workpiece 17 to prevent dust from affecting the welding strength.

[0030] A slag removing bin is provided on the right side inside the movable block 14, a second driving gear 49 is provided on the left side inside the slag removing bin and is rotated via a third rotating shaft, a second driving wheel 50 is fixedly provided on the top of the second driving gear 49, the second driving gear 49 is meshed and connected with the rack 40, a second driven wheel 52 is provided on the right side of the second driving wheel 50 and is rotated via a fourth rotating shaft, the diameter of the second driving wheel 50 is larger than that of the second driven wheel 52, a second transmission chain 51 is meshed between the second driven wheel 52 and the second driving wheel 50, a grinding wheel is provided at the bottom of the fourth rotating shaft, a grinding cylinder 25 is provided on the outer side of the grinding wheel, and a movable baffle 27 is provided at the bottom of the grinding cylinder 25. When the movable block 14 moves, it drives the second driving gear 49 to move accordingly, so that the second driving gear 49 starts to rotate under the action of the rack 40, so that the third rotating shaft and the second driving wheel 50 at the top start to rotate. When the second driving wheel 50 rotates, it drives the second driven wheel 52 to start rotating through the second transmission chain 51 meshing therewith, so that the fourth rotating shaft and the grinding wheel at the bottom thereof start to rotate, and the welding slag on the surface of the weld 30 after welding is ground to remove the welding slag, so as to facilitate the next step of processing of the workpiece 17.

[0031] The heights of the universal nozzle 26 and the movable baffle 27 match the height of the welding head 16 .

[0032] Working principle: When welding, the cylinder 6 is started to make the piston rod 8 move downward. When the piston rod 8 moves downward, it drives the movable plate 9 and the side sliders 10 on both sides to move downward along the guide rod 7. When the movable plate 9 moves downward, it drives the driving motor 11 and the movable block 14 at the bottom to move downward. When the movable block 14 moves downward, it drives the mounting seat 15 and the welding head 16 at the bottom to move downward. When the welding head 16 moves to contact with the weld 30, the cylinder 6 stops running. At this time, the driving motor 11 is started, driving the threaded rod 12 to start rotating. When the threaded rod 12 rotates, it drives the movable block 14 to slide to the left along the guide rail 13, thereby driving the welding head 16 to move downward. The joint 16 welds the weld 30 of the workpiece 17. When the welding head 16 moves to contact the weld 30, the infrared sensor 28 senses the signal and transmits the signal to the cylinder 6 and the drive motor 11, so that the cylinder 6 stops running, the drive motor 11 starts, and the movable block 14 moves, driving the laser rangefinder 29 to move accordingly. When the laser rangefinder 29 senses that the movement distance of the movable block 14 is consistent with the length of the weld 30, the signal is transmitted to the cylinder 6 and the drive motor 11, so that the cylinder 6 is reset and the drive motor 11 stops running, thereby realizing automatic control of welding and effectively improving welding efficiency.

[0033] The workpiece 17 is positioned by the movable pin 19 before welding. When positioning, the movable pin 19 is inserted into the through hole 18 at the corresponding position. When the movable plate 9 moves downward, it drives the connecting rod to move downward, so that the collar 22 connected to the bottom end of the connecting rod moves downward, drives the telescopic rod 21 to shorten, drives the lifting plate 20 on the top of the telescopic rod 21 to lower, thereby drives the inner rod 35 connected to the top of the lifting plate 20 to move downward, so that the conical platform 32 moves downward in the inner groove 31. When the conical platform 32 moves downward, it abuts against the inner side wall of the clamping jaw 33, thereby generating an outward thrust on the clamping jaw 33, driving the clamping jaw 33 to move outward, and the first spring 37 is compressed, generating a thrust in the opposite direction on the clamping jaw 33. At this time, the clamping jaw 33 is moved in the horizontal direction. The workpiece 17 is fixed. When the conical table 32 and the clamping jaws 33 move to a relatively fixed state, the conical table 32 continues to move downward under the pulling force of the inner rod 35, so that the clamping jaws 33 and the movable pin 19 move toward the bottom of the outer sleeve 38. The second spring 39 is compressed, and a thrust in the opposite direction is exerted on the movable pin 19. When the clamping jaws 33 move downward, the clamping block 34 is driven to move downward, thereby fixing the workpiece 17 in the vertical direction. After welding is completed, the clamping jaws 33 and the movable pin 19 are reset under the elastic force of the first spring 37 and the second spring 39. At this time, the workpiece 17 is separated from the movable pin 19 and the clamping jaws 33. Through the above steps, the workpiece 17 can be automatically positioned and clamped during welding, thereby improving the welding accuracy and facilitating the demoulding of the workpiece 17.

[0034] During welding, the movable block 14 moves and drives the first driving gear 44 to start moving, so that the first driving gear 44 starts to rotate under the action of the rack 40, so that the first rotating shaft and the first driving wheel 45 at the top start to rotate. When the first driving wheel 45 rotates, the first driven wheel 47 is driven to rotate through the first transmission chain 46 meshing therewith, so that the second rotating shaft and the blade 48 at the bottom thereof start to rotate. When the blade 48 rotates, wind force is generated, so that the airflow flows out along the nozzle in all directions, and the dust and debris on the surface of the workpiece 17 are removed to prevent the dust from affecting the welding strength; when the movable block 14 moves, it drives the second driving gear 49 to move accordingly, so that the second driving gear 49 starts to rotate under the action of the rack 40, so that the third rotating shaft and the second driving wheel 50 at the top start to rotate. When the second driving wheel 50 rotates, the second driven wheel 52 is driven to rotate through the second transmission chain 51 meshing therewith, so that the fourth rotating shaft and the grinding wheel at the bottom thereof start to rotate, and the welding slag on the surface of the weld 30 after welding is ground to remove the welding slag, so as to facilitate the next step of processing of the workpiece 17.

[0035] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. An arc welding machine with positioning function, characterized in that: It comprises a workbench (1), an arc welding mechanism, an automatic positioning mechanism and a synchronous multi-stage slag removal mechanism; Both ends of the top of the workbench (1) are symmetrically and fixedly provided with side panels (4), the side panels (4) are arranged vertically with the workbench (1), a top panel (5) is fixedly provided on the top of the side panels (4), the arc welding mechanism is arranged on the lower side of the top panel (5), a bottom bin (2) is fixedly provided at the bottom of the workbench (1), the automatic positioning mechanism is arranged at the bottom of the workbench (1), a plurality of workpieces (17) are arranged in the middle of the upper surface of the workbench (1), and the sides of adjacent workpieces (17) are surrounded to form a welding seam (30), the synchronous multi-stage gate mechanism is arranged at the bottom of the arc welding mechanism, and a plurality of bases (3) are fixedly provided on both sides of the bottom of the bottom bin (2).

2. The arc welding machine with positioning function according to claim 1, characterized in that The arc welding mechanism comprises a cylinder (6), wherein the cylinder (6) is fixedly arranged on the top of the top plate (5), the output end of the cylinder (6) is connected to a piston rod (8), the bottom end of the piston rod (8) passes through the top plate (5) and extends to the bottom of the top plate (5), the piston rod (8) is arranged perpendicular to the top plate (5), a movable plate (9) is fixedly arranged at the bottom end of the piston rod (8), guide rods (7) are fixedly arranged on both sides of the top of the movable plate (9), the top end of the guide rod (7) passes through the top plate (5) and extends to the upper part of the top plate (5), the guide rod (7) and the piston rod (8) are arranged parallel to each other, and side sliders (10) are arranged at both ends of the movable plate (9), and the side sliders (10) are slidably connected to the inner wall of the side plate (4).

3. The arc welding machine with positioning function according to claim 2, characterized in that A driving motor (11) is fixedly arranged at the bottom right of the movable plate (9), a threaded rod (12) is arranged at the output end of the driving motor (11), the other end of the threaded rod (12) is rotatably connected to the side slider (10) on the left side, the threaded rod (12) is arranged vertically to the side plate (4), a movable block (14) is threadedly connected to the middle part of the threaded rod (12), a guide rail (13) is arranged at the bottom of the movable plate (9), and the guide rail (13) is connected to the threaded rod (1 2) are arranged in parallel, the top plate of the movable block (14) is slidably connected to the guide rail (13), a welding bin (42) is provided in the middle of the inner side of the movable block (14), a power supply is provided inside the welding bin (42), a mounting seat (15) is provided at the bottom of the welding bin (42), a welding head (16) is provided at the bottom of the mounting seat (15), the welding head (16) is located directly above the welding seam (30), and the welding seam (30) is arranged in parallel with the threaded rod (12).

4. The arc welding machine with positioning function according to claim 3, characterized in that A pair of infrared sensors (28) are symmetrically arranged at the bottom of the inner wall of the side plate (4), and the infrared sensors (28) are electrically connected to the cylinder (6) and the drive motor (11). The height of the infrared sensors (28) matches the thickness of the workpiece (17). A laser rangefinder (29) is fixedly arranged at the bottom of the right side wall of the movable block (14), and the laser rangefinder (29) is electrically connected to the cylinder (6) and the drive motor (11).

5. The arc welding machine with positioning function according to claim 2, characterized in that The automatic positioning mechanism comprises a plurality of movable pins (19), wherein the plurality of movable pins (19) are arranged on the surface of the workbench (1), and the surface of the workpiece (17) is provided with a plurality of through holes (18). The positions of the movable pins (19) match the through holes (18), and the minimum number of the movable pins (19) is four. The movable pins (19) are distributed on both sides of the weld (30), and the movable pins (19) are arranged perpendicular to the workbench (1).

6. The arc welding machine with positioning function according to claim 5, characterized in that The movable pin (19) is provided with an inner groove (31), and a conical platform (32) is provided inside the inner groove (31). The conical platform (32) is provided in an inverted cone shape. The bottom end of the conical platform (32) is connected to an inner rod (35), and the inner rod (35) extends to the bottom of the movable pin (19). The bottom of the inner rod (35) is connected to a lifting plate (20), and the lifting plate (20) is provided in parallel with the workbench (1). A telescopic rod (21) is connected to the center of the top movable end of the telescopic rod (21), a collar (22) is fixedly provided in the middle of the top movable end of the telescopic rod (21), a connecting rod is vertically provided at the bottom of the movable plate (9), the bottom end of the connecting rod passes through the workbench (1) and extends to the inside of the bottom bin (2), the bottom end of the connecting rod is fixedly connected to the collar (22), and a plurality of reinforcing rods (23) are fixedly provided between the outer side wall of the collar (22) and the two sides of the bottom of the lifting plate (20).

7. The arc welding machine with positioning function according to claim 6, characterized in that A plurality of clamping jaws (33) are evenly arranged on the side wall of the movable pin (19); a movable groove (36) is arranged at the connection between the bottom of the clamping jaw (33) and the movable pin (19); a first spring (37) is connected between the bottom of the clamping jaw (33) and the outer end of the movable groove (36); the shape of the side wall of the clamping jaw (33) facing the conical platform (32) matches the conical platform (32); a clamping block (34) is fixedly arranged on the top of the outer wall of the clamping jaw (33); an outer sleeve (38) is arranged on the outer side of the bottom of the movable pin (19); the outer sleeve (38) is fixedly connected to the workbench (1); and a second spring (39) is connected between the bottom of the movable pin (19) and the inner bottom of the outer sleeve (38).

8. The arc welding machine with positioning function according to claim 3, characterized in that The synchronous multi-stage slag removal mechanism comprises a rack (40), the rack (40) is fixedly arranged at the bottom of the movable plate (9), the rack (40) is arranged parallel to the guide rail (13), a dust removal bin (41) is arranged on the left side of the interior of the movable block (14), a first driving gear (44) is arranged on the left side of the interior of the dust removal bin (41) to rotate via a first rotating shaft, a first driving wheel (45) is fixedly arranged on the top of the first driving gear (44), and the first driving gear (44) and the rack (40) are connected to each other. ) are meshedly connected, a first driven wheel (47) is arranged on the right side of the first driving wheel (45) and is rotated through a second rotating shaft, the diameter of the first driving wheel (45) is larger than that of the first driven wheel (47), a first transmission chain (46) is arranged in meshing relationship between the first driving wheel (45) and the first driven wheel (47), a plurality of blades (48) are evenly arranged on the side wall of the bottom end of the second rotating shaft, a wind tube (24) is sleeved on the outer side of the blades (48), and a universal nozzle (26) is arranged at the bottom of the wind tube (24).

9. The arc welding machine with positioning function according to claim 8, characterized in that A slag removal bin (43) is arranged on the right side of the movable block, a second driving gear (49) is arranged on the left side of the interior of the slag removal bin (43) and is rotatable via a third rotating shaft, a second driving wheel (50) is fixedly arranged on the top of the second driving gear (49), the second driving gear (49) is meshingly connected with the rack (40), a second driven wheel (52) is arranged on the right side of the second driving wheel (50) and is rotatable via a fourth rotating shaft, the diameter of the second driving wheel (50) is larger than that of the second driven wheel (52), a second transmission chain (51) is arranged in mesh with the second driving wheel (50), a grinding wheel (53) is arranged at the bottom of the fourth rotating shaft, a grinding cylinder (25) is arranged on the outer side of the grinding wheel (53), and a movable baffle (27) is arranged at the bottom of the grinding cylinder (25).

10. The arc welding machine with positioning function according to claim 9, characterized in that The heights of the universal nozzle (26) and the movable baffle (27) match the height of the welding head (16).

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