Electric arc narrow gap welding device

Abstract

The invention relates to an electric arc narrow gap welding device which comprises a device body, the device body comprises a vertical plate, a first rotating rod is rotationally arranged on the vertical plate in a penetrating mode, a first fixing plate is arranged at one end of the first rotating rod, a base plate is arranged on the first fixing plate in a sliding mode, and a welding gun head is arranged on one side of the base plate. Second fixing plates are fixedly arranged on the four faces of the outer side of the welding gun head correspondingly, and an electromagnetic coil is arranged on one side of each second fixing plate. The invention relates to the technical field of welding equipment. The narrow-gap welding method has the effects of inhibiting arc runout and improving the narrow-gap welding effect.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to an arc narrow gap welding device. Background Art

[0002] The narrow gap welding method is a traditional processing method that leaves a very narrow gap between two workpieces and then welds in this gap. The welding wire melts and drips into the gap to form a weld. This welding method is suitable for workpieces with high welding quality, such as aerospace, automobile manufacturing and other fields. In the narrow gap welding process, a high stability forming process is an important means to ensure the welding quality.

[0003] When welding in a narrow gap, the arc jumps significantly, resulting in reduced welding effect. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide an arc narrow gap welding device, which has the effect of suppressing arc jump and improving the narrow gap welding effect.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: An arc narrow gap welding device comprises a device body, the device body comprises a vertical plate, a first rotating rod is rotatably penetrated on the vertical plate, a first fixed plate is arranged at one end of the first rotating rod, a base plate is slidably arranged on the first fixed plate, a welding gun head is arranged on one side of the base plate, second fixed plates are fixedly arranged on four outer sides of the welding gun head, and an electromagnetic coil is arranged on one side of each of the second fixed plates; The two electromagnetic coils located opposite to each other generate a weak magnetic field; The other two electromagnetic coils generate a strong magnetic field; A third fixing plate is arranged on both sides of the welding gun head, and ultrasonic generators are arranged on the two third fixing plates.

[0006] In a preferred example, the present invention can be further configured as follows: inert gas output pipes are also provided on the two third fixing plates.

[0007] In a preferred example, the present invention may be further configured as follows: the third fixing plate is located between the corresponding electromagnetic coil and the welding gun head.

[0008] In a preferred example, the present invention can be further configured as follows: a first connecting plate is provided at one end of the first fixing plate away from the first rotating rod, the first connecting plate is hingedly connected to a second connecting plate, and a laser emitter is provided on the second connecting plate.

[0009] In a preferred example, the present invention can be further configured as follows: an anti-dumping component is provided at the other end of the first rotating rod.

[0010] In a preferred example, the present invention can be further configured as follows: the anti-dumping assembly includes a square tube, the square tube is fixed to one end of the first rotating rod, a counterweight is placed in the square tube, a first screw is passed through the square tube, a pressure plate is rotatably provided at one end of the first screw, and the pressure plate is directly opposite to the counterweight; The upper halves of both sides of the counterweight block are provided with shelves, and the shelves are placed on the top of the square tube.

[0011] In a preferred example, the present invention can be further configured as follows: a fixing component is provided on the first rotating rod and the vertical plate.

[0012] In a preferred example, the present invention can be further configured as follows: the fixing assembly includes an annular plate, a first placement groove is provided on the top of the vertical plate, the annular plate is fixedly sleeved on the outer peripheral surface of the first rotating rod, the annular plate is located in the first placement groove, and an anti-slip layer is provided on the outer peripheral surface of the annular plate; A cover plate is provided at the top opening of the first placement slot, a second screw rod is passed through the cover plate, and the second screw rod is threadedly connected to the cover plate; An arc-shaped plate is rotatably provided at the bottom of the second screw, and the arc-shaped plate is located directly above the annular plate; The bottom of the annular plate is provided with an anti-slip layer; Two guide rods are symmetrically fixedly arranged in the first placement groove, and the two guide rods both pass through the arc-shaped plate, and the tops of the two guide rods both contact the bottom of the cover plate.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects: 1. By setting up electromagnetic coils and ultrasonic transmitters, the arc jump can be suppressed and the narrow gap welding effect can be improved through the cooperation of strong and weak ultrasonic fields and strong and weak magnetic fields.

[0014] 2. By providing an anti-dumping assembly at one end of the first rotating rod, the welding gun head and the laser emitter are always kept parallel to the welding position of the workpiece, further ensuring the welding quality.

[0015] 3. By setting up a laser emitter, the stirring effect of the laser refines the grains and improves the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall half-section structure of this embodiment (only three second fixing plates are drawn); Figure 2 yes Figure 1 The enlarged structural diagram at A in the middle; Figure 3 yes Figure 1 Enlarged structural diagram at B in the middle.

[0017] In the figure, 1. device body; 11. vertical plate; 12. first rotating rod; 13. first fixed plate; 14. base plate; 15. welding gun head; 2. second fixed plate; 22. electromagnetic coil; 23. third fixed plate; 24. ultrasonic generator; 25. inert gas output pipe; 3. first connecting plate; 31. second connecting plate; 32. laser emitter; 4. square tube; 41. first screw; 42. pressing plate; 5. fixing assembly; 51. annular plate; 52. first placement groove; 53. cover plate; 54. second screw; 55. arc plate; 6. guide rod. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] Example: Reference Figure 1-Figure 3 As shown, the present invention discloses an arc narrow gap welding device, a device body 1, and the device body 1 includes a vertical plate 11, and a first rotating rod 12 is rotatably penetrated on the vertical plate 11. The first rotating rod 12 and the vertical plate 11 are jointly provided with a fixing component 5.

[0020] The fixing assembly 5 includes an annular plate 51 , a first placement groove 52 is formed on the top of the vertical plate 11 , the annular plate 51 is fixedly sleeved on the outer peripheral surface of the first rotating rod 12 , the annular plate 51 is located in the first placement groove 52 , and an anti-slip layer is provided on the outer peripheral surface of the annular plate 51 .

[0021] A cover plate 53 is disposed at the top opening of the first placement slot 52, and a second screw 54 is passed through the cover plate 53, and the second screw 54 is threadedly connected to the cover plate 53. An arc plate 55 is rotatably disposed at the bottom of the second screw 54, and the arc plate 55 is located directly above the annular plate 51.

[0022] An anti-skid layer is provided at the bottom of the annular plate 51. Two guide rods 6 are symmetrically fixedly provided in the first placement groove 52, and both guide rods 6 pass through the arc plate 55, and the tops of both guide rods 6 are in contact with the bottom of the cover plate 53. When the cover plate 53 is removed, the arc plate 55 can be taken out, which is convenient for operators to replace the anti-skid layer on the arc plate 55.

[0023] A first fixing plate 13 is disposed at one end of the first rotating rod 12, and a base plate 14 is slidably disposed on the first fixing plate 13. The base plate 14 is connected to the first fixing plate 13 via a locking nut. The base plate 14 is also fixed on the first fixing plate 13 via the locking nut.

[0024] A welding gun head 15 is provided on one side of the base plate 14, and second fixing plates 2 are fixedly provided on the four outer sides of the welding gun head 15, and an electromagnetic coil 22 is provided on one side of each of the second fixing plates 2. Two electromagnetic coils 22 located opposite to each other generate a weak magnetic field. The other two electromagnetic coils 22 generate a strong magnetic field. Third fixing plates 23 are provided on both sides of the welding gun head 15, and ultrasonic generators 24 are provided on the two third fixing plates 23.

[0025] The magnetic field and ultrasonic field work together to ensure stable formation of the molten droplet during the growth and shedding stages during the welding process.

[0026] In the droplet growth stage, a strong ultrasonic field is used to compress the arc, and the magnetic field is a weak magnetic field.

[0027] During the droplet shedding process, a strong magnetic field is used to promote the droplet transition.

[0028] Strong and weak ultrasonic fields and strong and weak electromagnetic fields are emitted alternately, which effectively increases the arc climbing and promotes the droplet transfer.

[0029] Inert gas output pipes 25 are also provided on the two third fixing plates 23. The third fixing plates 23 are located between the corresponding electromagnetic coils 22 and the welding gun heads 15.

[0030] The first fixing plate 13 is provided with a first connecting plate 3 at one end away from the first rotating rod 12, and the first connecting plate 3 is hinged with a second connecting plate 31, and a laser emitter 32 is provided on the second connecting plate 31. The first connecting plate 3 and the second connecting plate 31 are both provided with a locking nut, which fixes the relative positions of the first connecting plate 3 and the second connecting plate 31.

[0031] The laser stirring effect can refine the grains and improve the welding quality. The other end of the first rotating rod 12 is provided with an anti-dumping component.

[0032] The anti-dumping assembly includes a square tube 4, which is fixed to one end of the first rotating rod 12, a counterweight is placed in the square tube 4, a first screw 41 is passed through the square tube 4, a pressing plate 42 is rotatably arranged at one end of the first screw 41, and the pressing plate 42 faces the counterweight. Shelves are arranged on the upper half of both sides of the counterweight, and the shelves are placed on the top of the square tube 4.

[0033] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc narrow gap welding device, comprising a device body (1), characterized in that: The device body (1) comprises a vertical plate (11), a first rotating rod (12) is rotatably penetrated on the vertical plate (11), a first fixed plate (13) is arranged at one end of the first rotating rod (12), a base plate (14) is slidably arranged on the first fixed plate (13), a welding gun head (15) is arranged on one side of the base plate (14), second fixed plates (2) are fixedly arranged on four outer sides of the welding gun head (15), and an electromagnetic coil (22) is arranged on one side of each of the second fixed plates (2); The two electromagnetic coils (22) located opposite to each other generate a weak magnetic field; The other two electromagnetic coils (22) generate a strong magnetic field; A third fixing plate (23) is provided on both sides of the welding gun head (15), and an ultrasonic generator (24) is provided on the two third fixing plates (23).

2. The arc narrow gap welding device according to claim 1, characterized in that: Inert gas output pipes (25) are also provided on the two third fixing plates (23).

3. The arc narrow gap welding device according to claim 2, characterized in that: The third fixing plate (23) is located between the corresponding electromagnetic coil (22) and the welding gun head (15).

4. The arc narrow gap welding device according to claim 3, characterized in that: A first connecting plate (3) is provided at one end of the first fixing plate (13) away from the first rotating rod (12); the first connecting plate (3) is hingedly connected to a second connecting plate (31); and the second connecting plate (31) is provided with a laser emitter (32).

5. The arc narrow gap welding device according to claim 4, characterized in that: The other end of the first rotating rod (12) is provided with an anti-dumping component.

6. The arc narrow gap welding device according to claim 3, characterized in that: The anti-dumping assembly comprises a square tube (4), the square tube (4) being fixed to one end of the first rotating rod (12), a counterweight being placed in the square tube (4), a first screw rod (41) passing through the square tube (4), a pressure plate (42) being rotatably arranged at one end of the first screw rod (41), the pressure plate (42) being directly opposite to the counterweight; Shelves are provided on the upper halves of both sides of the counterweight block, and the shelves are placed on the top of the square tube (4).

7. The arc narrow gap welding device according to claim 6, characterized in that: A fixing component (5) is provided on the first rotating rod (12) and the vertical plate (11).

8. An arc narrow gap welding device according to claim 7, characterized in that: The fixing assembly (5) comprises an annular plate (51), a first placement groove (52) is provided on the top of the vertical plate (11), the annular plate (51) is fixedly sleeved on the outer peripheral surface of the first rotating rod (12), the annular plate (51) is located in the first placement groove (52), and an anti-slip layer is provided on the outer peripheral surface of the annular plate (51); A cover plate (53) is provided at the top opening of the first placement groove (52), a second screw rod (54) is passed through the cover plate (53), and the second screw rod (54) is threadedly connected to the cover plate (53); An arc-shaped plate (55) is rotatably provided at the bottom of the second screw rod (54), and the arc-shaped plate (55) is located directly above the annular plate (51); An anti-slip layer is provided at the bottom of the annular plate (51); Two guide rods (6) are symmetrically fixedly arranged in the first placement groove (52), the two guide rods (6) both pass through the arc-shaped plate (55), and the tops of the two guide rods (6) both contact the bottom of the cover plate (53).

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