A welding device for stainless steel screw

Abstract

The present invention relates to the field of welding technology, and specifically to a welding device for stainless steel screws, comprising a gun barrel, a first rotating block rotatably connected inside the gun barrel, six sets of threaded mounting cavities on the outer surface of the first rotating block, a gun handle fixedly connected to the right end of the gun barrel, a rotating arm rotatably connected to the inner wall of the gun handle, a rotating mechanism fixedly installed between the gun handle and the rotating arm, a staff member can rotate the rotating arm toward the direction of the gun handle to trigger the rotating mechanism, and then the rotating mechanism can drive the first rotating block to rotate a limited angle, a gun barrel fixedly connected to one end of the gun barrel away from the gun handle, a fixing mechanism that can limit and fix the threaded rod is fixedly installed inside the gun barrel, and a recovery mechanism is also provided on the left side of the gun barrel, and the recovery mechanism can recover the air pipe and the wire. It is convenient for the staff to supplement the threaded rod.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a welding device for a stainless steel screw. Background Art

[0002] As a standard fastener, screw rods are used to fix and connect parts. The use of threaded rods is also very common in life. However, due to different usage situations, in traditional equipment for welding threaded rods, the threaded rods need to be placed on the welding gun head and removed after welding is completed. This process is cumbersome and time-consuming.

[0003] Chinese patent (Announcement No. CN117718652A), which discloses a stainless steel screw welding device, relates to the field of screw welding technology, and includes a feeding device, the feeding device is used to put the stainless steel screw to be welded, a docking device is arranged on the feeding device, the docking device is used to dock two stainless steel screws, and a welding device is arranged below the docking device, the welding device is used to weld two stainless steel screws. The feeding device can continuously feed the stainless steel screw, and through the left end groove and the right end groove alternately arranged on the rotating cylinder, the left dial head and the right dial head can be alternately spot welded on the stainless steel screw, respectively, so as to facilitate butt welding, with a high degree of automation, the dial head and the stainless steel screw are spot welded, which is convenient for subsequent cutting; the internal threads of the lower rotating cylinder and the upper clamping cover allow the stainless steel screw to be accurately aligned before welding, ensuring that the welded screw can be better used and the screw welding effect is good.

[0004] In the above scheme and in the modern traditional technology, the threaded rod is simply welded on the surface of the object, and then the threaded rod is placed on the gun head one by one and welded again. The process is cumbersome, and the dust on the surface of the object during welding will affect the welding quality. In order to solve the problem that the threaded rod needs to be placed on the gun head one by one and the dust on the surface of the object will affect the welding quality, we propose a welding device for stainless steel screws. Summary of the invention

[0005] The object of the present invention is to provide a welding device for a stainless steel screw rod to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A welding device for a stainless steel screw, comprising a gun barrel, a first rotating block is rotatably connected inside the gun barrel, six groups of threaded mounting cavities are opened on the outer surface of the first rotating block, a gun handle is fixedly connected to the right end of the gun barrel, a rotating arm is rotatably connected to the inner wall of the gun handle, a rotating mechanism is also fixedly installed between the gun handle and the rotating arm, a staff member can rotate the rotating arm toward the direction of the gun handle to trigger the rotating mechanism, and then the rotating mechanism can drive the first rotating block to rotate, a gun barrel is fixedly connected to one end of the gun barrel away from the gun handle, and a fixing mechanism capable of limiting and fixing the threaded rod is fixedly installed inside the gun barrel;

[0008] The end of the gun barrel away from the gun barrel is fixedly connected with two groups of electric welding joints that can be welded to the threaded rods, and the two groups of electric welding joints are fixedly connected with plugs through electric wires. An air pump is arranged on the left side of the gun handle, and the air pump and the gun barrel are fixedly connected through an air pipe. A recovery mechanism is also arranged on the left side of the gun barrel, and the recovery mechanism can recover the air pipe and the electric wires.

[0009] As a further feature of the present invention, the recovery mechanism includes a fixed round block, the outer wall of the fixed round block is fixedly connected to a reset torsion spring, the end of the fixed round block close to the reset torsion spring is fixedly connected to a round box, the inside of the round box is rotatably connected to a first rotating round plate, the end of the first rotating round plate close to the reset torsion spring is fixedly connected to two groups of clamping arc blocks, the outer wall of the reset torsion spring is clamped between the two groups of clamping arc blocks, and because the shape of the clamping arc block is semicircular, it can better fit and clamp with the outer wall of the reset spring when clamping with the inner wall of the reset spring.

[0010] As a further feature of the present invention, the end of the round box away from the reset torsion spring is rotatably connected to a recovery wheel, the recovery wheel is fixedly connected to the first rotating disc, the air pipe and the electric wire are both wound around the outer wall of the recovery wheel, the end of the fixed round block away from the reset torsion spring is fixedly connected to a fixed ring, the end of the fixed round block away from the reset torsion spring is also rotatably connected to a fixed round plate, the end of the fixed round plate close to the fixed round block is fixedly connected to two groups of clamping arc blocks, and a plurality of abutting teeth with a reset function are slidably connected inside the fixed ring. Since the abutting teeth have a reset function, they can be reset after being abutted.

[0011] As a further feature of the present invention, a plurality of rectangular grooves are provided inside the fixed disc, and the end of the fixed disc away from the fixed round block is rotatably connected to the second rotating disc, and an elastic torsion spring is fixedly connected between the second rotating disc and the fixed disc, and a plurality of second curved arc grooves are provided inside the second rotating disc, and a second sliding rod is slidably connected between each group of the second curved arc grooves and the rectangular groove, and the end of the second sliding rod away from the second rotating disc is fixedly connected to a snap-fitting tooth, and the outer wall of each group of the snap-fitting teeth abuts against the corresponding abutting teeth, because the shapes of the snap-fitting teeth and the abutting teeth are both triangular, so each time they abut, the hypotenuse will abut, and then the abutting teeth will shrink into the inside of the fixed ring and disengage from the abutment, and the hypotenuse between the abutting teeth and the snap-fitting teeth can reduce the friction between the two.

[0012] As a further feature of the present invention, a magazine box is slidably connected to the bottom of the gun barrel, a movable bar is slidably connected inside the magazine box, a second return spring is fixedly connected between the bottom of the movable bar and the inner wall of the magazine box, and a first curved arc groove is provided at the upper end of the movable bar, which can fit well with the threaded rod.

[0013] As a further embodiment of the present invention, the rotating mechanism includes a bellows, a third return spring is fixedly connected to the inside of the bellows, a cylinder is fixedly connected to the inside of the gun handle, and the cylinder and the bellows are connected through a pipe, a movable air plug is slidably connected to the inside of the cylinder, a fourth return spring is fixedly connected between the bottom of the movable air plug and the inner wall of the cylinder, and the fourth return spring can quickly reset the movable air plug after the movable air plug is displaced.

[0014] As a further feature of the present invention, a pressure arm is fixedly connected to the upper end of the mobile gas plug, a rectangular arm is fixedly connected to the end of the pressure arm away from the mobile gas plug, the bottom of the rectangular arm is rotatably connected to an abutment rotating block with a reset function, a second rotating block is rotatably connected to the inside of the gun barrel, six groups of abutment strips are fixedly connected to the outer wall of the second rotating block, the end of the second rotating block close to the first rotating block is fixedly connected to the mobile gas plug, and six groups of limiting circular blocks are provided on the outer wall of the mobile gas plug. Since the rectangular arm is made of plastic material, it has good elasticity and resilience.

[0015] As a further feature of the present invention, the bottom end of the inner wall of the gun barrel is fixedly connected to a limit frame, the inner wall of the limit frame is slidably connected to a triangular clamping block, a fifth return spring is fixedly connected between the bottom of the triangular clamping block and the limit frame, the outer wall of the fifth return spring is clamped with the inner wall of one group of limit circular blocks, the inner wall of the gun barrel is fixedly connected to a mounting circular plate, and the outer wall of the mounting circular plate is also provided with an opening, which allows a large amount of gas inside the gun barrel to enter the interior of the gun barrel, thereby pushing the threaded rod to move toward the interior of the gun barrel.

[0016] As a further feature of the present invention, the fixing mechanism includes a group of second inner rings and a plurality of first inner rings, the second inner rings and the first inner rings are both fixedly mounted on the inner wall of the gun barrel, a plurality of first abutment plates are rotatably mounted inside the second inner ring, a plurality of second abutment plates are rotatably mounted inside the first inner ring, and mounting springs are fixedly mounted between the first abutment plates and the second abutment plates and the inner wall of the gun barrel, and the mounting springs can support and reset the first abutment plates and the second abutment plates.

[0017] As a further feature of the present invention, an induction switch is fixedly connected to the outer wall of the rotating arm, and the induction switch is a prior art. A controller is fixedly installed between the plug and the two sets of electric welding joints, and signal modules that can transmit information are installed inside the controller and the induction switch. The above structures all use prior art and are simple and quick to operate.

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

[0019] 1. When the present invention is in use, the two ends of the electric wire and the air pipe on the outer wall of the winding and recycling wheel are pulled, and the air pipe and the electric wire will drive the recycling wheel to rotate, and the recycling wheel drives the reset torsion spring to rotate and store force through the two groups of clamping curved blocks, and the two groups of clamping curved blocks will also drive the second rotating disc and the fixed disc to rotate while rotating, and the second rotating disc and the fixed disc will drive the second sliding rod to rotate through the rectangular groove and the second curved groove at the same time, and the second sliding rod drives the clamping teeth to rotate, and the clamping teeth abut against the abutting teeth in the inner wall of the fixed ring, and the abutting teeth shrink toward the inside of the installation groove, and when the air pipe and the electric wire are pulled to a suitable length, the pulling of the air pipe on the electric wire is released, and the electric wire and the air pipe can be arbitrarily extended and recycled at will through the above.

[0020] 2. When the present invention is used, the rotating arm is pressed, and the rotating arm will squeeze the bellows, and the air inside the bellows will enter the cylinder. The limit abutment round block will drive the rectangular arm to move downward through the pressure arm, and the abutment rotating block will abut against the outer wall of the second rotating block. When the abutment rotating block abuts against the abutment card strip, since the rectangular arm will bend when abutting against the outer wall of the second rotating block, the rectangular arm is made of plastic. When the second rotating block rotates, it will drive the first rotating block to rotate through the limit abutment round block, and the first rotating block will drive the six groups of threaded installation cavities to rotate. Since the threaded rod in one group of threaded installation cavities has been The second rotating block is taken out, so after the second rotating block rotates sixty degrees, the threaded rod in the next set of threaded installation cavities will be pushed into the barrel by the high-pressure gas blown out of the magazine box. At this time, the threaded rod inside the barrel will be abutted by the first abutment piece and the second abutment piece. Since there are threaded caps on the threaded rods, the threaded caps will be abutted by the first abutment piece. At this time, the high-pressure gas can no longer blow the threaded rod out of the barrel. During welding, the gas will be blown out from the barrel, which can not only clean the dust on the outer wall of the object to be welded, but also cool the threaded rod after welding. The threaded rod can be supplemented and replaced, and the dust on the outer wall of the object to be welded can also be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The front view of a welding device for stainless steel screws.

[0022] Figure 2 This is a schematic diagram of the internal structure of a gun barrel in a welding device for stainless steel screws.

[0023] Figure 3 A top view of a welding device for a stainless steel screw.

[0024] Figure 4 The figure is a schematic diagram of the structure of a fixing mechanism in a welding device for a stainless steel screw.

[0025] Figure 5 An exploded view of a recovery mechanism in a welding device for a stainless steel screw.

[0026] Figure 6 The figure is a schematic diagram of the recovery structure in a welding device for a stainless steel screw.

[0027] Figure 7 The figure is a schematic diagram of the position structure of the electric welding joint in a welding device for stainless steel screws.

[0028] Figure 8 The figure is a schematic diagram of the internal structure of a bin box in a welding device for stainless steel screws.

[0029] Fig. 9 The figure is a schematic diagram of the internal structure of a bellows in a welding device for a stainless steel screw.

[0030] Fig.10 The figure is a schematic diagram of the internal structure of a cylinder in a welding device for a stainless steel screw.

[0031] Fig.11 The present invention is a schematic diagram of the structure of an abutting clamping strip in a welding device for a stainless steel screw.

[0032] Fig.12 The figure is a schematic diagram of the structure of a limit frame in a welding device for a stainless steel screw.

[0033] In the figure: 1. gun barrel; 2. gun barrel; 3. electric welding joint; 4. gun handle; 5. rotating arm; 6. plug; 7. magazine box; 8. first rotating block; 9. cylinder; 10. pressure arm; 11. threaded mounting cavity; 12. grip; 13. corrugated sleeve; 14. first return spring; 15. first sliding rod; 16. abutment ring; 17. abutment cylinder; 18. first inner ring; 19. long handle; 20. first curved arc groove; 21. moving strip; 22. second return spring; 23. bellows; 24. induction switch; 25. third return spring; 26. fourth return spring; 27. moving air plug; 28. rectangular arm; 29. ​​abutment rotating block; 30. elastic iron sheet; 31. air vent; 32. opening; 33. mounting circular plate; 34. abutment card strip ; 35. Second rotating block; 36. Limiting circular block; 37. Triangular clamping block; 39. Fifth reset spring; 40. Limiting frame; 41. Protective shell; 42. First rotating disc; 43. Fixed circular block; 44. Abutment tooth; 45. Rectangular groove; 46. Second curved groove; 47. Round box; 48. Snap-on tooth; 49. Second sliding rod; 50. Round handle; 51. Second rotating disc; 52. Fixed disc; 53. Reset torsion spring; 54. Recovery wheel; 55. Limiting rectangular opening; 56. Snap-on curved block; 57. Fixed strip; 58. First abutment piece; 59. Second abutment piece; 60. Second inner ring; 61. Limiting abutment circular block; 62. Air pump; 101. Recovery mechanism; 201. Rotation mechanism; 301. Fixing mechanism. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 , 2, 3, and 4, in an embodiment of the present invention, a welding device for a stainless steel screw comprises a gun barrel 1, a first rotating block 8 is rotatably connected inside the gun barrel 1, six groups of threaded mounting cavities 11 are provided on the outer surface of the first rotating block 8, and the six groups of threaded mounting cavities 11 are circumferentially distributed on the outer wall of the first rotating block 8. The inner diameter of the threaded mounting cavity 11 is larger than the diameter of the cross section of the threaded rod. A gun handle 4 is fixedly connected to the left end of the gun barrel 1 (please refer to Figure 1 ), the outer wall of the gun barrel 1 is fixedly connected to a grip 12, and the grip 12 allows the staff to better fit the palm of the hand when holding the gun handle 4 with the hand, thereby enhancing the staff's grip on the gun handle 4. The inner wall of the gun handle 4 is rotatably connected to a rotating arm 5, and a rotating mechanism 201 is fixedly installed between the gun handle 4 and the rotating arm 5. The staff can rotate the rotating arm 5 in the direction of the gun handle 4 to trigger the rotating mechanism 201, and then the rotating mechanism 201 can drive the first rotating block 8 to rotate. The end of the gun barrel 1 away from the gun handle 4 is fixedly connected to the gun barrel 2. A fixing mechanism 301 capable of limiting and fixing the threaded rod is fixedly installed inside the gun barrel 2. Two groups of electric welding joints 3 capable of welding the threaded rod are fixedly connected to one end of the gun barrel 2 away from the gun barrel 1, and the two groups of electric welding joints 3 are also symmetrically distributed on the outer wall of the gun barrel 2. A plug 6 is fixedly connected between the two groups of electric welding joints 3 through electric wires. An air pump 62 is arranged on the left side of the gun handle 4. The air pump 62 is fixedly connected to the gun barrel 1 through an air pipe. A recovery mechanism 101 is also arranged on the left side of the gun barrel 1. The recovery mechanism 101 can recover the air pipe and the electric wires.

[0036] Example 2: Please refer to Figure 1 , 2As shown in Figures 3 and 4, the recovery mechanism 101 includes a fixed round block 43, and a reset torsion spring 53 is fixedly connected to the outer wall of the fixed round block 43. The reset torsion spring 53 is made of stainless steel. Stainless steel has the characteristics of corrosion resistance and high temperature resistance, and can maintain good elasticity in extreme environments. The fixed round block 43 is fixedly connected to a round box 47 at one end close to the reset torsion spring 53. The first rotating round piece 42 is rotatably connected inside the round box 47. The end of the first rotating round piece 42 close to the reset torsion spring 53 is fixedly connected to two groups of clamping curved blocks 56, and the two groups of clamping curved blocks 56 are symmetrically distributed on the outer wall of the first rotating round piece 42. The outer wall of the reset torsion spring 53 is clamped between the two groups of clamping curved blocks 56. The end of the round box 47 away from the reset torsion spring 53 A recovery wheel 54 is rotatably connected, and the recovery wheel 54 is fixedly connected to the first rotating disc 42. The air pipe and the electric wire are both wound around the outer wall of the recovery wheel 54. One end of the round box 47 close to the recovery wheel 54 is fixedly connected to the protective shell 41. The outer wall of the protective shell 41 is provided with a plurality of weight-reducing holes. The recovery wheel 54 is located inside the protective shell 41. The outer wall of the protective shell 41 is provided with two groups of limiting rectangular openings 55. The outer walls of the air pipe and the electric wire are both penetrated by the limiting rectangular openings 55. When the recovery wheel 54 rotates, if the recovery wheel 54 is in a tilted or shaking state, the recovery wheel 54 will cause knotting and entanglement when recycling the air pipe and the electric wire. Therefore, the outer walls of the air pipe and the electric wire can be abutted and limited by the two groups of limiting rectangular openings 55 to prevent The air pipe and the electric wire are entangled and knotted when being recovered by the recovery wire wheel 54. The end of the fixed round block 43 away from the reset torsion spring 53 is fixedly connected to a fixed ring. The end of the fixed round block 43 away from the reset torsion spring 53 is also rotatably connected to a fixed disc 52, and the fixed disc 52 is located inside the fixed ring. The outer wall of the fixed disc 52 is rotatably connected to a turning handle, which is convenient for the staff to limit the rotation of the fixed disc 52. The end of the fixed disc 52 close to the fixed round block 43 is fixedly connected to two groups of clamping curved blocks 56. The outer walls of the two groups of clamping curved blocks 56 are all penetrated into the fixed round block 43. A plurality of abutting teeth 44 with a reset function are slidably connected inside the fixed ring. Specifically, a plurality of mounting grooves are provided inside the fixed ring. Each group of abutting teeth 44 slides The fixing plate 52 is rotatably connected to the inner wall of the corresponding mounting groove, an elastic spring is fixedly connected between the abutting teeth 44 and the mounting groove, and a plurality of mounting grooves and the abutting teeth 44 are distributed in a circle, a plurality of rectangular grooves 45 are provided inside the fixed disc 52, and the end of the fixed disc 52 away from the fixed round block 43 is rotatably connected with the second rotating disc 51, and an elastic torsion spring is fixedly connected between the second rotating disc 51 and the fixed disc 52, and a plurality of second curved arc grooves 46 are provided inside the second rotating disc 51, and a second sliding rod 49 is slidably connected between each group of second curved arc grooves 46 and the rectangular groove 45, and a clamping tooth 48 is fixedly connected at one end of the second sliding rod 49 away from the second rotating disc 51, and the outer wall of each group of clamping teeth 48 abuts against the corresponding abutting tooth 44,A round handle 50 is fixedly connected to one end of the second curved groove 46 away from the second rotating disc 51, which is convenient for the staff to rotate the second rotating disc 51.

[0037] See also Figure 1 , 2 As shown in , 3, and 8, a magazine box 7 is slidably connected to the bottom of the gun barrel 1. Specifically, two groups of slide bars are fixedly connected to the upper end of the magazine box 7, and the two groups of slide bars are symmetrically distributed. Two groups of sliding holes are opened at the bottom of the gun barrel 1, and each group of slide bars is slidably connected to the inner wall of the corresponding sliding hole. More specifically, the inner wall of the sliding hole and the outer wall of the slide bar are coated with lubricating oil. The sliding hole can limit the magazine box 7 through the slide bar, and when the magazine box 7 moves on the inner wall of the sliding hole through the slide bar, the sliding hole can improve the stability of the magazine box 7 during movement through the slide bar. The lubricating oil can reduce the friction between the sliding hole and the slide bar, thereby improving the service life of the slide bar and the sliding hole. , it is convenient for the staff to disassemble the warehouse box 7. A moving bar 21 is slidably connected inside the warehouse box 7. A second return spring 22 is fixedly connected between the bottom of the moving bar 21 and the inner wall of the warehouse box 7. A first curved arc groove 20 is opened at the upper end of the moving bar 21. Two groups of fixing bars 57 are fixedly connected to the inner wall of the warehouse box 7. When the threaded rod is placed on the moving bar 21, since a nut is fixed on the threaded rod, the nut is clamped between the two groups of fixing bars 57. The vertically stacked threaded rods inside the warehouse box 7 are limited by the two groups of fixing bars 57, and the outer wall of the moving bar 21 is fixedly connected to a long handle 19.

[0038] See also Figure 1 , 2As shown in , 3, 9, 10, 11, and 12, the rotating mechanism 201 includes a bellows 23, a third return spring 25 is fixedly connected inside the bellows 23, a cylinder 9 is fixedly connected inside the gun handle 4, and the cylinder 9 is connected to the bellows 23 through a pipeline, a movable gas plug 27 is slidably connected inside the cylinder 9, a rubber ring is installed on the outer wall of the movable gas plug 27, the outer wall of the rubber ring abuts against the inner wall of the cylinder 9, and the rubber ring can enhance the sealing between the movable gas plug 27 and the inner wall of the cylinder 9, a fourth return spring 26 is fixedly connected between the bottom of the movable gas plug 27 and the inner wall of the cylinder 9, a pressure arm 10 is fixedly connected to the upper end of the movable gas plug 27, and a bellows sleeve is fixedly connected between the pressure arm 10 and the gun barrel 1 13. In order to prevent the gas inside the gun barrel 1 from escaping, the connection between the pressure arm 10 and the gun barrel 1 can be closed by the bellows 13, and the bellows 13 has good foldability and can be folded with the movement of the pressure arm 10 without being affected by anything. The end of the pressure arm 10 away from the mobile gas plug 27 is fixedly connected with a rectangular arm 28, and the rectangular arm 28 is made of plastic material. The bottom of the rectangular arm 28 is rotatably connected to an abutting rotating block 29 with a reset function. Specifically, an elastic iron sheet 30 is fixedly connected to the outer wall of the rectangular arm 28, and one end of the elastic iron sheet 30 close to the abutting rotating block 29 abuts against the abutting rotating block 29. A second rotating block 35 is rotatably connected inside the gun barrel 1, and the second rotating block 35 is rotatably connected to the inside of the gun barrel 1. The rotating block 35 is hexagonal, and the outer wall of the second rotating block 35 is fixedly connected with six groups of abutting clamping strips 34, and each group of abutting clamping strips 34 is adapted to the abutting rotating block 29. The end of the second rotating block 35 close to the first rotating block 8 is fixedly connected to the mobile gas plug 27, and the outer wall of the mobile gas plug 27 is provided with six groups of limiting round blocks 36. The bottom end of the inner wall of the gun barrel 1 is fixedly connected to the limiting frame 40, and the inner wall of the limiting frame 40 is slidably connected with a triangular clamping block 37. The end of the second rotating block 35 close to the first rotating block 8 is fixedly connected to the limited abutting round block 61, and the outer wall of the limited abutting round block 61 is provided with six groups of limiting round blocks 36. The bottom end of the inner wall of the gun barrel 1 is fixedly connected to the limiting frame 40, and the inner wall of the limiting frame 40 is slidably connected There is a triangular clamping block 37, and a fifth return spring 39 is fixedly connected between the bottom of the triangular clamping block 37 and the limit frame 40. The outer wall of the fifth return spring 39 is clamped with the inner wall of one group of limit round blocks 36. A mounting circular plate 33 is fixedly connected to the inner wall of the gun barrel 1, and the mounting circular plate 33 is located between the limit abutment round block 61 and the first rotating block 8. A plurality of air holes 31 are provided on the outer wall of the mounting circular plate 33. The air pump 62 can blow air into the gun barrel 1 through the air pipe, and the gas will be blown into the threaded mounting cavity 11 through the air holes 31. The gas will remove dust and impurities on the outer surface of the unwelded threaded rod inside the threaded mounting cavity 11 in advance, and the outer wall of the mounting circular plate 33 is also provided with an opening 32.

[0039] See also Figure 1 , 2As shown in Figures 3, 4, the fixing mechanism 301 includes a group of second inner rings 60 and a plurality of first inner rings 18, the second inner rings 60 and the first inner rings 18 are fixedly installed in the inner wall of the gun barrel 2, a plurality of first abutting pieces 58 are rotatably installed inside the second inner ring 60, a plurality of second abutting pieces 59 are rotatably installed inside the first inner ring 18, and the volume of the first abutting pieces 58 is larger than that of the second abutting pieces 59, and mounting springs are fixedly installed between the first abutting pieces 58 and the second abutting pieces 59 and the inner wall of the gun barrel 2, the second inner ring 60 and the plurality of first inner rings 18 are distributed in an array inside the gun barrel 2, and the plurality of first abutting pieces 58 and the second abutting pieces 59 are also distributed in a circle.

[0040] See also Figure 4 , 7 As shown, a side of the gun barrel 2 close to the electric welding joint 3 is provided with an abutment ring 16, and a plurality of first sliding rods 15 are fixedly connected to the end of the abutment ring 16 close to the gun barrel 2, and the outer wall of the first sliding rod 15 is slidably connected to the gun barrel 2. Specifically, a plurality of circular openings are opened at the end of the gun barrel 2 close to the electric welding joint 3, and the outer wall of each group of first sliding rods 15 is slidably connected to the inner wall of the corresponding circular opening. A plurality of abutment cylinders 17 are fixedly connected to the end of the abutment ring 16 close to the gun barrel 2, and the function of the abutment cylinders 17 is to prevent the abutment ring 16 from squeezing the electric welding joint 3, so as to prevent the electric welding joint 3 from being squeezed and damaged. When the threaded rod is fixed in the inner wall of the gun barrel 2 by the fixing mechanism 301, the gun barrel 2 is perpendicular to the outer wall of the object to be welded. At this time, the threaded rod inside the gun barrel 2 is abutted against the outer wall of the welding object. Note that the abutment ring 16 will first abut against the outer wall of the welding object. The staff can shake the gun barrel 2 to determine whether the abutment ring 16 is parallel to the outer wall of the welding object, and then press the gun barrel 2. The abutment ring 16 will squeeze the first return spring 14, and the first sliding rod 15 passes through the circular opening, starting the electric welding joint 3 to weld between the threaded rod and the outer wall of the welding object.

[0041] See also Figure 1 , 2 As shown in , 3 and 9, the outer wall of the rotating arm 5 is fixedly connected with an induction switch 24, which is a prior art. A controller is fixedly installed between the plug 6 and the two sets of electric welding joints 3, and a signal module that can transmit information is installed inside the controller and the induction switch 24.

[0042] The working principle of the present invention is as follows: when in use, the wires and the two ends of the air pipe on the outer wall of the winding and recycling wire wheel 54 are pulled, and the air pipe and the wire will drive the recycling wire wheel 54 to rotate, and the recycling wire wheel 54 drives the reset torsion spring 53 to rotate and store force through the two sets of clamping curved blocks 56. When the two sets of clamping curved blocks 56 rotate, the second rotating disc 51 and the fixed disc 52 will also drive the second rotating disc 51 and the fixed disc 52 to rotate. The second rotating disc 51 and the fixed disc 52 will simultaneously drive the second sliding rod 49 to rotate through the rectangular groove 45 and the second curved groove 46, and the second sliding rod 49 drives the clamping teeth 48 to rotate, and the clamping teeth 48 abut against the abutting teeth 44 in the inner wall of the fixed ring, and the abutting teeth 44 shrink toward the inside of the installation groove. When the air pipe and the wire are pulled to a suitable length, the pulling of the air pipe on the wire is released. At this time, the fixed disc 52 and the second rotating disc 51 stop rotating, and the reset torsion spring 53 will reset and drive the fixed disc 52 and the second rotating disc 5 through the two sets of clamping curved blocks 56. The second rotating disc 51 drives the second curved arc groove 46 to rotate, and the second curved arc groove 46 drives the second sliding rod 49 to slide along the inner wall of the rectangular groove 45, and the second sliding rod 49 drives the engaging teeth 48 to disengage from the engaging teeth 44. Then, the fixed disc 52 is rotated to drive the recovery wheel 54 to recycle the wires and the air pipe through the two sets of engaging curved arc blocks 56. At this time, the control of the second rotating disc 51 is released, and the elastic torsion spring drives the second rotating disc 51 to reset and rotate. The second rotating disc 51 drives the second curved arc groove 46 to rotate, and the second curved arc groove 46 drives the second sliding rod 49 to engage with the engaging teeth 48 and the abutting teeth 44.

[0043] When it is necessary to weld the threaded rod to an object such as a steel plate, it is only necessary to place the end of the gun barrel 2 away from the gun barrel 1 parallel to the outer wall of the welding object, so that the threaded rod inside the gun barrel 2 abuts against the outer wall of the welding object, and press the sensing switch 24 by hand. The sensing switch 24 will transmit a signal to the signal module inside the controller through the signal module. At this time, the controller will start the electric welding joint 3 after receiving the signal, and the electric welding joint 3 will weld between the threaded rod and the surface of the welded object. Since the threaded rod is located between the second inner ring 60 and each group of first inner rings 18, the threaded rod is abutted by the first abutting piece 58 and the second abutting piece 59. It is necessary to pull the gun barrel 2 with force, and the threaded rod will be separated from the abutment with the first abutting piece 58 and the second abutting piece 59;

[0044] When the rotating arm 5 is pressed, the rotating arm 5 will squeeze the bellows 23, and the air inside the bellows 23 will enter the cylinder 9. The limiting abutting round block 61 will drive the rectangular arm 28 to move downward through the pressure arm 10, and the abutting rotating block 29 will abut against the outer wall of the second rotating block 35. When the abutting rotating block 29 abuts against the abutting clamping strip 34, the abutting rotating block 29 moves downward, and the abutting rotating block 29 will drive the abutting clamping strip 34 and the second rotating block 35 to rotate sixty degrees through the abutting rotating block 29. Since the rectangular arm 28 will bend when abutting against the outer wall of the second rotating block 35, the rectangular arm 28 is made of plastic. When the second rotating block 35 rotates, it will drive the first rotating block 8 to rotate through the limiting abutting round block 61, and the first rotating block 8 will drive the six groups of threaded mounting cavities 11 to rotate. Since the threaded rod in one group of threaded mounting cavities 11 has been taken out, after the second rotating block 35 rotates sixty degrees, the next group of threaded mounting cavities 11 will rotate. The threaded rod in the cavity 11 will be pushed into the interior of the gun barrel 2 by the high-pressure gas blown out by the air pump 62. At this time, the threaded rod inside the gun barrel 2 will be abutted by the first abutting piece 58 and the second abutting piece 59. Since there is a threaded cap on the threaded rod, the threaded cap will be abutted by the first abutting piece 58. At this time, the high-pressure gas can no longer blow the threaded rod out of the gun barrel 2. During welding, the gas will be blown out from the gun barrel 2, which can not only clean the dust on the outer wall of the object to be welded, but also cool the threaded rod after welding. It is worth noting that every time the second rotating block 35 drives the limiting abutting circular block 61 to rotate once, the limiting abutting circular block 61 will drive the limiting circular block 36 to disengage from the clamping connection with the triangular clamping block 37 and clamp it again with the next group of limiting circular blocks 36. Through the clamping connection between the triangular clamping block 37 and the limiting circular block 36, the limiting of the limiting abutting circular block 61 by the limiting circular block 36 is completed, and the limiting abutting circular block 61 can limit the first rotating block 8.

[0045] When the first rotating block 8 rotates, the uppermost group of threaded rods inside the magazine box 7 will be taken away. At this time, the second return spring 22 will push the stacked threaded rods inside the magazine box 7 to continue to advance into the gun barrel 1 through the moving bar 21, so that the next group of threaded rods will enter a new group of threaded installation cavities 11.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device for a stainless steel screw, comprising a gun barrel (1), It is characterized in that The gun barrel (1) is rotatably connected to a first rotating block (8) inside, and the outer surface of the first rotating block (8) is provided with six groups of threaded mounting cavities (11). The right end of the gun barrel (1) is fixedly connected to a gun handle (4), and the inner wall of the gun handle (4) is rotatably connected to a rotating arm (5). A rotating mechanism (201) is also fixedly installed between the gun handle (4) and the rotating arm (5). A staff member can rotate the rotating arm (5) in the direction of the gun handle (4) to trigger the rotating mechanism (201), and then the rotating mechanism (201) can drive the first rotating block (8) to rotate. The end of the gun barrel (1) away from the gun handle (4) is fixedly connected to a gun barrel (2), and a fixing mechanism (301) capable of limiting and fixing the threaded rod is fixedly installed inside the gun barrel (2); The gun barrel (2) is fixedly connected to one end away from the gun barrel (1) with two groups of electric welding joints (3) capable of being welded to the threaded rods, and a plug (6) is fixedly connected between the two groups of electric welding joints (3) via electric wires. An air pump (62) is arranged on the left side of the gun handle (4), and the air pump (62) is fixedly connected to the gun barrel (1) via an air pipe. A recovery mechanism (101) is also arranged on the left side of the gun barrel (1), and the recovery mechanism (101) can recover the air pipe and the electric wires. The recovery mechanism (101) comprises a fixed round block (43), an outer wall of the fixed round block (43) is fixedly connected to a return torsion spring (53), an end of the fixed round block (43) close to the return torsion spring (53) is fixedly connected to a round box (47), a first rotating round piece (42) is rotatably connected inside the round box (47), an end of the first rotating round piece (42) close to the return torsion spring (53) is fixedly connected to two groups of clamping curved blocks (56), and the outer wall of the return torsion spring (53) is clamped between the two groups of clamping curved blocks (56); One end of the round box (47) away from the reset torsion spring (53) is rotatably connected to a recovery wire wheel (54), the recovery wire wheel (54) is fixedly connected to the first rotating disc (42), the air pipe and the electric wire are both wound around the outer wall of the recovery wire wheel (54), one end of the fixed round block (43) away from the reset torsion spring (53) is fixedly connected to a fixing ring, one end of the fixed round block (43) away from the reset torsion spring (53) is also rotatably connected to a fixing disc (52), one end of the fixed disc (52) close to the fixed round block (43) is fixedly connected to two groups of clamping curved arc blocks (56), and a plurality of abutting teeth (44) with a reset function are slidably connected inside the fixing ring; A plurality of rectangular grooves (45) are provided inside the fixed disc (52); one end of the fixed disc (52) away from the fixed round block (43) is rotatably connected to a second rotating disc (51); an elastic torsion spring is fixedly connected between the second rotating disc (51) and the fixed disc (52); a plurality of second curved grooves (46) are provided inside the second rotating disc (51); a second sliding rod (49) is slidably connected between each group of the second curved grooves (46) and the rectangular grooves (45); one end of the second sliding rod (49) away from the second rotating disc (51) is fixedly connected to a clamping tooth (48); and the outer wall of each group of the clamping teeth (48) is in abutment with the corresponding abutting tooth (44); The bottom of the gun barrel (1) is slidably connected to a magazine box (7), a moving bar (21) is slidably connected inside the magazine box (7), a second return spring (22) is fixedly connected between the bottom of the moving bar (21) and the inner wall of the magazine box (7), and a first curved arc groove (20) is formed at the upper end of the moving bar (21); The rotating mechanism (201) comprises a bellows (23), a third return spring (25) is fixedly connected inside the bellows (23), a cylinder (9) is fixedly connected inside the gun handle (4), and the cylinder (9) and the bellows (23) are connected via a pipeline, a movable gas plug (27) is slidably connected inside the cylinder (9), and a fourth return spring (26) is fixedly connected between the bottom of the movable gas plug (27) and the inner wall of the cylinder (9); The upper end of the movable gas plug (27) is fixedly connected to a pressure arm (10); an end of the pressure arm (10) away from the movable gas plug (27) is fixedly connected to a rectangular arm (28); the bottom of the rectangular arm (28) is rotatably connected to an abutting rotating block (29) having a reset function; a second rotating block (35) is rotatably connected inside the gun barrel (1); six groups of abutting clamping strips (34) are fixedly connected to the outer wall of the second rotating block (35); an end of the second rotating block (35) close to the first rotating block (8) is fixedly connected to the movable gas plug (27); and six groups of limiting circular blocks (36) are provided on the outer wall of the movable gas plug (27); The bottom end of the inner wall of the gun barrel (1) is fixedly connected to a limit frame (40), the inner wall of the limit frame (40) is slidably connected to a triangular clamping block (37), a fifth return spring (39) is fixedly connected between the bottom of the triangular clamping block (37) and the limit frame (40), the outer wall of the fifth return spring (39) is clamped with the inner wall of one group of limit circular blocks (36), the inner wall of the gun barrel (1) is fixedly connected to a mounting circular plate (33), and the outer wall of the mounting circular plate (33) is also provided with an opening (32); The fixing mechanism (301) comprises a group of second inner rings (60) and a plurality of first inner rings (18); the second inner rings (60) and the first inner rings (18) are both fixedly mounted on the inner wall of the gun barrel (2); a plurality of first abutment plates (58) are rotatably mounted inside the second inner ring (60); a plurality of second abutment plates (59) are rotatably mounted inside the first inner ring (18); and mounting springs are fixedly mounted between the first abutment plates (58) and the second abutment plates (59) and the inner wall of the gun barrel (2).

2. A welding device for a stainless steel screw according to claim 1, It is characterized in that An induction switch (24) is fixedly connected to the outer wall of the rotating arm (5), and the induction switch (24) is a prior art. A controller is fixedly installed between the plug (6) and the two sets of electric welding joints (3), and a signal module capable of transmitting information is installed inside the controller and the induction switch (24).

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