Welding gun for electric arc welding

Abstract

The invention belongs to the technical field of arc welding, and particularly relates to an arc welding gun which comprises a holding rod, a top connecting block fixedly arranged on the upper end face of the holding rod, a pushing outer frame fixedly arranged on the upper end face of the top connecting block, a welding rod pushing frame fixedly arranged on the upper end face of the pushing outer frame, and a fixed connecting frame fixedly connected between the lower end face of the pushing outer frame and the upper end face of the holding rod. According to the automatic welding device, the welding pushing block and the welding rod pushing rod slowly move leftwards, and a welding strip is slowly pushed to move leftwards, so that the welding strip can continuously descend along with loss and keep a constant welding distance; and therefore, the working requirement of the welding gun is lowered, the situation that the height of the welded welding plane is uneven is avoided, and the welding working quality is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of arc welding, in particular to a welding gun for arc welding. Background Art

[0002] Arc welding refers to the process of using an arc as a heat source and utilizing the physical phenomenon of air discharge to convert electrical energy into the heat and mechanical energy required for welding, thereby achieving the purpose of connecting metals. The main methods include arc welding, submerged arc welding, gas shielded welding, etc. It is the most widely used and important fusion welding method.

[0003] The welding gun is one of the important parts of arc welding. The current method of use is to use the welding gun to fix the welding rod, and then lower the welding gun when moving horizontally during welding. Lowering the speed of the welding gun affects the uniformity of the welding solution and the quality after welding, making the welding gun difficult to use. Summary of the invention

[0004] The object of the present invention is to provide a welding gun for arc welding, which is used to overcome the above-mentioned defects in the prior art.

[0005] A welding gun for arc welding according to the present invention comprises a grip rod, the upper end surface of the grip rod is fixedly provided with a top connecting block, the upper end surface of the top connecting block is fixedly provided with a pusher outer frame, the upper end surface of the pusher outer frame is fixedly provided with a welding rod pushing frame, a fixed connecting frame is fixedly connected between the lower end surface of the pusher outer frame and the upper end surface of the grip rod, the left end surface of the fixed connecting frame is fixedly connected to the top connecting block, the upper end surface of the top connecting block and the upper end surface of the fixed connecting frame are both detachably connected to the lower end surface of the pusher outer frame, a welding work frame is fixedly provided on the left end surface of the pusher outer frame, and the right end surface of the welding work frame is detachably connected to the pusher outer frame;

[0006] The outer pusher frame is provided with a pushing working chamber opening to the right, the upper wall of the pushing working chamber is connected to a welding rod inlet chamber connected to the left and right, the rear wall of the welding rod inlet chamber is connected to the outside world, the welding working frame is provided with a welding connecting chamber connected to the left and right, the welding connecting chamber is provided with a welding rod that can move left and right, the welding rod and the welding connecting chamber are interference fit, the pushing working chamber is provided with a welding pushing block that can move left and right, the upper end surface of the welding pushing block is rotatably provided with a rotating connecting block, the upper end surface of the rotating connecting block is rotatably provided with a welding rod inlet block, the welding rod inlet block is located in the welding rod inlet chamber, and two ventilation lifting frames are symmetrically front and back and fixedly provided on the right side of the upper end surface of the welding working frame.

[0007] As a further technical solution of the present invention, a welding rod pushing rod is fixedly provided on the rear end face of the welding rod feeding block, and the welding rod pushing rod is made in cooperation with the welding connecting cavity. A push welding rotating shaft is rotated in the pushing working cavity, and the outer cylindrical surface of the push welding rotating shaft is threadedly connected to the welding pushing block. A pushing motor is fixedly provided on the left wall of the pushing working cavity, and the left end face of the push welding rotating shaft is dynamically connected to the pushing motor.

[0008] As a further technical solution of the present invention, a lifting chamber connected to the left and right is provided in the ventilation lifting frame, a ventilation rotating shaft is rotatably provided in the lifting chamber, an air pipe injection frame which can move up and down is provided on the upper end face of the welding work frame, the front and rear end faces of the air pipe injection frame extend into the lifting chamber on the same side, the outer circular surface of the ventilation rotating shaft is threadedly connected with the front and rear end faces of the air pipe injection frame, the upper end face of the air pipe injection frame is provided with an air pipe connecting port connected with an external air box, a ventilation motor is fixedly provided on the lower wall of the lifting chamber, and the lower end face of the ventilation rotating shaft is dynamically connected to the ventilation motor.

[0009] As a further technical solution of the present invention, the front end surface of the welding work frame is provided with an electric connection port connected to an external wiring device. After the electric connection port is connected, the welding rod can be energized to perform arc welding.

[0010] As a further technical solution of the present invention, a fan box is fixedly provided on the left end face of the top connecting block, a fan chamber is provided in the fan box, two fan vents connected to the outside are provided on the right wall of the fan chamber, a rotating fan is rotatably provided in the fan chamber, a fan filter plate is fixedly provided on the left wall of the fan chamber, and the fan filter plate can play a role in filtering and dust prevention.

[0011] As a further technical solution of the present invention, a fan motor is fixedly provided on the right wall of the fan chamber, and the right end surface of the rotating fan is dynamically connected to the fan motor.

[0012] As a further technical solution of the present invention, a control panel is fixedly provided on the left end surface of the grip, and the control panel can control the start and stop of all motors and devices of the present invention.

[0013] As a further technical solution of the present invention,

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention provides a welding rod pushing rod and a welding rod feeding block, which can prevent the hands of workers from directly contacting the high temperature inside the welding work frame during replacement, thereby reducing the possibility of burns to the workers.

[0016] 2. The present invention moves the welding pushing block together with the welding rod pushing rod slowly to the left, and slowly pushes the welding rod to the left, so that the welding rod can continue to drop as the wear progresses and maintain a constant welding distance, thereby reducing the working requirements of the welding gun, and the welding plane after welding will not be uneven, thereby greatly improving the quality of welding work.

[0017] 3. The present invention blows the external fan vent to the welding plane through the fan cavity, reducing the impact of the smoke generated during welding on the vision and body of the workers, thereby improving the quality of welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic front view of the appearance of the present invention;

[0019] Figure 2 It is a schematic left side view of the appearance of the present invention;

[0020] Figure 3 is a schematic top view of the appearance of the present invention;

[0021] Figure 4 It is a schematic right side view of the appearance of the present invention;

[0022] Figure 5 is a schematic bottom view of the appearance of the present invention;

[0023] Figure 6 The utility model is a schematic diagram of the overall structure of a welding gun for arc welding of the present invention.

[0024] In the figure:

[0025] 11. Grip; 12. Top connection block; 13. Fixed connection frame; 14. Push material outer frame; 15. Push welding rotating shaft; 16. Welding rod pushing rod; 17. Welding rod pushing frame; 18. Air pipe connection port; 19. Air pipe injection frame; 20. Fan box; 21. Control panel; 22. Ventilation motor; 23. Ventilation rotating shaft; 24. Power connection port; 25. Welding work frame; 26. Welding rod; 27. Fan filter plate; 28. Rotating connection block; 29. ​​Fan vent; 30. Ventilation lifting frame; 31. Pushing working chamber; 32. Lifting chamber; 33. Welding rod inlet chamber; 34. Welding connecting chamber; 35. Fan chamber; 36. Rotating fan; 37. Fan motor; 38. Pushing motor; 39. Welding rod inlet block; 40. Welding pushing block. DETAILED DESCRIPTION

[0026] 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:

[0027] See attached Figure 1-Figure 6 According to an embodiment of the present invention, a welding gun for arc welding comprises a grip rod 11, a top connecting block 12 is fixedly provided on the upper end surface of the grip rod 11, a pusher outer frame 14 is fixedly provided on the upper end surface of the top connecting block 12, a welding rod pushing frame 17 is fixedly provided on the upper end surface of the pusher outer frame 14, a fixed connecting frame 13 is fixedly connected between the lower end surface of the pusher outer frame 14 and the upper end surface of the grip rod 11, a left end surface of the fixed connecting frame 13 is fixedly connected to the top connecting block 12, the upper end surfaces of the top connecting block 12 and the upper end surfaces of the fixed connecting frame 13 are both detachably connected to the lower end surface of the pusher outer frame 14, a welding work frame 25 is fixedly provided on the left end surface of the pusher outer frame 14, and a right end surface of the welding work frame 25 is detachably connected to the pusher outer frame 14;

[0028] The pushing outer frame 14 is provided with a pushing working chamber 31 opening to the right, and the upper wall of the pushing working chamber 31 is connected to a welding rod inlet chamber 33 connected to the left and right, and the rear wall of the welding rod inlet chamber 33 is connected to the outside world. The welding working frame 25 is provided with a welding connecting chamber 34 connected to the left and right, and a welding rod 26 that can move left and right is provided in the welding connecting chamber 34. The welding rod 26 and the welding connecting chamber 34 are interference fit, and a welding pushing block 40 that can move left and right is provided in the pushing working chamber 31. A rotating connecting block 28 is rotatably provided on the upper end surface of the welding pushing block 40, and a welding rod inlet block 39 is rotatably provided on the upper end surface of the rotating connecting block 28. The welding rod inlet block 39 is located in the welding rod inlet chamber 33, and two ventilation lifting frames 30 are symmetrically and fixedly provided on the right side of the upper end surface of the welding working frame 25.

[0029] Among them, a welding rod pushing rod 16 is fixedly provided on the rear end face of the welding rod feeding block 39, and the welding rod pushing rod 16 is made in cooperation with the welding connecting chamber 34. A push welding rotating shaft 15 is rotatably provided in the pushing working chamber 31, and the outer cylindrical surface of the push welding rotating shaft 15 is threadedly connected to the welding pushing block 40. A pushing motor 38 is fixedly provided on the left wall of the pushing working chamber 31, and the left end face of the push welding rotating shaft 15 is dynamically connected to the pushing motor 38. When the pushing motor 38 is started, it drives the push welding rotating shaft 15 to rotate, thereby driving the welding pushing block 40 to move left and right.

[0030] Among them, the ventilation lifting frame 30 is provided with a lifting chamber 32 connected to the left and right, and a ventilation rotating shaft 23 is rotatably provided in the lifting chamber 32. The upper end surface of the welding work frame 25 is provided with an air pipe injection frame 19 that can move up and down. The front and rear end surfaces of the air pipe injection frame 19 extend into the lifting chamber 32 on the same side. The outer cylindrical surface of the ventilation rotating shaft 23 is threadedly connected with the front and rear end surfaces of the air pipe injection frame 19. The upper end surface of the air pipe injection frame 19 is provided with an air pipe connecting port 18 connected to the external air box. The lower wall of the lifting chamber 32 is fixed with a ventilation motor 22. The lower end surface of the ventilation rotating shaft 23 is dynamically connected to the ventilation motor 22. When the ventilation motor 22 is started, the ventilation rotating shaft 23 is driven to rotate, thereby driving the air pipe injection frame 19 to move up and down.

[0031] The front end surface of the welding work frame 25 is provided with a power connection port 24 connected to an external wiring device. After the power connection port 24 is connected, the welding rod 26 can be energized to perform arc welding.

[0032] Among them, a fan box 20 is fixedly provided on the left end face of the top connecting block 12, a fan cavity 35 is provided in the fan box 20, two fan vents 29 connected to the outside are provided on the right wall of the fan cavity 35, a rotating fan 36 is rotatably provided in the fan cavity 35, a fan filter plate 27 is fixedly provided on the left wall of the fan cavity 35, and the fan filter plate 27 can play a role in filtering and dust prevention.

[0033] Among them, a fan motor 37 is fixedly provided on the right wall of the fan chamber 35, and the right end face of the rotating fan 36 is poweredly connected to the fan motor 37. When the fan motor 37 is started, the rotating fan 36 is driven to rotate, so that the outside air is blown to the left side through the fan vent 29, thereby reducing the impact of smoke on workers during welding.

[0034] A control panel 21 is fixedly disposed on the left end surface of the handle 11, and the control panel 21 can control the start and stop of all motors and devices of the present invention.

[0035] The welding gun for arc welding of the present invention has the following working process:

[0036] Before work, the welding push block 40 is located at the far left, and the air pipe injection frame 19 is at the uppermost position. At this time, the external welding rod 26 is inserted into the welding rod inlet cavity 33, and the right end face of the welding rod 26 is abutted against the left end face of the welding rod inlet block 39. At this time, the pushing motor 38 is started to drive the push welding rotating shaft 15 to rotate, thereby driving the welding push block 40 to move to the left, so that the welding rod inlet block 39 pushes the welding rod 26 into the welding connecting cavity 34. When the welding rod inlet block 39 moves to the far left, the welding rod 26 can be pushed into the welding connecting cavity 34, and then the pushing motor 38 is started in the reverse direction, so that the welding push block 40 moves to the On the far right side, the electrode pushing rod 16 is moved to the left side, and then the pushing motor 38 is restarted in the forward direction, so that the welding pushing block 40 moves to the left together with the electrode pushing rod 16, and the electrode pushing rod 16 is pushed into the welding connecting cavity 34 and contacts with the right end face of the welding rod 26, and finally the power connection port 24 is connected with the external wiring device, and the arc welding work can be started. The present invention can avoid direct contact between the hands of the staff and the high temperature inside the welding work frame 25 during replacement by means of the electrode pushing rod 16 and the electrode feeding block 39, thereby reducing the possibility of burns to the staff.

[0037] When performing arc welding, the welding rod 26 starts welding and is gradually consumed. During operation, the pushing motor 38 can be slowly started so that the welding pushing block 40 and the welding rod pushing rod 16 slowly move to the left, and slowly push the welding rod 26 to move to the left, so that the welding rod 26 can continue to decrease as the consumption proceeds and maintain a constant welding distance, thereby reducing the working requirements of the welding gun, and the welding plane after welding will not be uneven, which greatly improves the quality of welding work.

[0038] While welding, the fan motor 37 can be started to drive the rotating fan 36 to rotate, so that the external fan vent 29 is blown to the welding plane through the fan chamber 35, reducing the impact of the smoke generated during welding on the workers' vision and body, thereby improving the quality of welding work. After the welding work is completed, when the welding rod 26 is pulled out, the ventilation motor 22 can be started to drive the ventilation rotating shaft 23 to rotate, and the air pipe injection rack 19 is moved to the lowest point. At the same time, the air pipe connecting port 18 is connected to the external air pump, so that the air pipe connecting port 18 blows the external air into the welding connecting chamber 34 through the air pipe injection rack 19, blows off the coating debris in the welding connecting chamber 34, cleans the welding connecting chamber 34, and prevents the dust and debris in the welding connecting chamber 34 from affecting the subsequent passage of the welding connecting chamber 34.

[0039] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding gun for arc welding, comprising a grip (11), characterized in that: The upper end surface of the gripping rod (11) is fixedly provided with a top connecting block (12), the upper end surface of the top connecting block (12) is fixedly provided with a material pushing outer frame (14), the upper end surface of the material pushing outer frame (14) is fixedly provided with a welding rod pushing frame (17), a fixed connecting frame (13) is fixedly connected between the lower end surface of the material pushing outer frame (14) and the upper end surface of the gripping rod (11), the left end surface of the fixed connecting frame (13) is fixedly connected to the top connecting block (12), the upper end surface of the top connecting block (12) and the upper end surface of the fixed connecting frame (13) are both detachably connected to the lower end surface of the material pushing outer frame (14), the left end surface of the material pushing outer frame (14) is fixedly provided with a welding working frame (25), and the right end surface of the welding working frame (25) is detachably connected to the material pushing outer frame (14); The pusher outer frame (14) is provided with a pushing working chamber (31) opening to the right, the upper wall of the pushing working chamber (31) is connected to a welding rod inlet chamber (33) connected to the left and right, the rear wall of the welding rod inlet chamber (33) is connected to the outside, the welding working frame (25) is provided with a welding connecting chamber (34) connected to the left and right, the welding connecting chamber (34) is provided with a welding rod (26) that can move left and right, the pushing working chamber (31) is provided with a welding pushing block (40) that can move left and right, the upper end surface of the welding pushing block (40) is rotatably provided with a rotating connecting block (28), the upper end surface of the rotating connecting block (28) is rotatably provided with a welding rod inlet block (39), the welding rod inlet block (39) is located in the welding rod inlet chamber (33), and two ventilation lifting frames (30) are symmetrically and fixedly provided on the right side of the upper end surface of the welding working frame (25).

2. The arc welding gun according to claim 1, characterized in that: A welding rod pushing rod (16) is fixedly provided on the rear end face of the welding rod feeding block (39), and the welding rod pushing rod (16) is made in cooperation with the welding connecting cavity (34). A push welding rotating shaft (15) is rotatably provided in the pushing working cavity (31), and the outer circumferential surface of the push welding rotating shaft (15) is threadedly connected to the welding pushing block (40). A pushing motor (38) is fixedly provided on the left wall of the pushing working cavity (31), and the left end face of the push welding rotating shaft (15) is dynamically connected to the pushing motor (38).

3. The arc welding gun according to claim 1, characterized in that: The ventilation lifting frame (30) is provided with a lifting chamber (32) connected to the left and right, and a ventilation rotating shaft (23) is rotatably provided in the lifting chamber (32). The upper end surface of the welding work frame (25) is provided with an air pipe injection frame (19) that can move up and down, and the front and rear end surfaces of the air pipe injection frame (19) extend into the lifting chamber (32) on the same side. The outer circumferential surface of the ventilation rotating shaft (23) is threadedly connected to the front and rear end surfaces of the air pipe injection frame (19). The upper end surface of the air pipe injection frame (19) is provided with an air pipe connection port (18) connected to an external air box. A ventilation motor (22) is fixedly provided on the lower wall of the lifting chamber (32), and the lower end surface of the ventilation rotating shaft (23) is dynamically connected to the ventilation motor (22).

4. The arc welding gun according to claim 1, characterized in that: The front end surface of the welding work frame (25) is provided with an electric connection port (24) which is connected with an external wiring device.

5. The arc welding gun according to claim 1, characterized in that: A fan box (20) is fixedly provided on the left end surface of the top connecting block (12), a fan chamber (35) is provided in the fan box (20), two fan vents (29) communicating with the outside are provided on the right wall of the fan chamber (35), a rotating fan (36) is rotatably provided in the fan chamber (35), and a fan filter plate (27) is fixedly provided on the left wall of the fan chamber (35).

6. The arc welding gun according to claim 5, characterized in that: A fan motor (37) is fixedly provided on the right wall of the fan chamber (35), and the right end surface of the rotating fan (36) is dynamically connected to the fan motor (37).

7. The arc welding gun according to claim 1, characterized in that: A control panel (21) is fixedly provided on the left end surface of the grip rod (11).

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