Automatic wire feeding electric welding gun

Abstract

The utility model discloses an automatic wire feeding electric welding gun which comprises a welding gun body, a driving motor and a wire feeding assembly, a wire feeding base used for fixing the driving motor is arranged on the surface of the welding gun body, a fixed ring is fixedly installed on the periphery of the wire feeding base and the periphery of the welding gun body, and the wire feeding assembly is fixedly installed at one end of the driving motor. A main shaft pipe is arranged at the output end of the driving motor, the end of the main shaft pipe penetrates into the driving base and is fixedly connected with a transmission fluted disc, the wire feeding assembly comprises the driving base and a plurality of guide rollers, the guide rollers are rotationally installed on the surface of the driving base, and driven teeth are arranged at one ends of the guide rollers. According to the welding wire conveying device, the novel welding wire conveying structure is arranged, a plurality of guide rollers are used for carrying out synchronous rolling motion to carry out welding wire conveying motion, electric conveying of the welding wires is carried out under the driving of the driving motor, the spiral guide rollers are tightly attached to the surfaces of the welding wires, the slipping problem is avoided, and the welding stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric welding guns, in particular to an automatic wire feeding electric welding gun. Background Art

[0002] Automatic wire feeding welding gun is a device used to continuously feed welding wire during welding, and is usually used in industrial manufacturing, construction, maintenance and other fields. Traditional automatic wire feeding welding guns usually use two roller structures arranged opposite to each other to feed the welding wire, one of which is driven by a motor, and the other roller is manually adjusted by the welder to abut against the surface of the welding wire so that the welding wire contacts the driving wheel for feeding the welding wire.

[0003] The traditional two-roller structure facing each other is affected by factors such as the diameter of the welding wire and the surface friction. The wire feeding speed is affected by the friction and has poor stability, resulting in uneven welding quality and even wire breakage. In addition, the two-roller face-to-face conveying method requires the wire feeding direction to be kept straight. Once the wire is offset, derailment is likely to occur and the wire feeding is easily interrupted. In view of this, the existing problems are studied and improved, and an automatic wire feeding welding gun is provided to solve the current problems. The purpose is to solve the problems and improve the practical value through this technology. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: an automatic wire feeding electric welding gun, comprising: a welding gun body, a driving motor and a wire feeding assembly, the surface of the welding gun body is provided with a wire feeding seat for fixing the driving motor, the outer periphery of the wire feeding seat and the welding gun body is fixedly installed with a fixed ring, the wire feeding assembly is fixedly installed at one end of the driving motor, the output end of the driving motor is provided with a spindle tube, the end of the spindle tube passes through the interior of the driving seat and is fixedly connected with a transmission gear disk, the wire feeding assembly comprises a driving seat and a plurality of guide rollers, the guide rollers are rotatably installed on the surface of the driving seat and one end is provided with driven teeth, the driven teeth are in transmission meshing with the inner side of the transmission gear disk, and the surface of the guide rollers is provided with spiral ridges.

[0006] In a preferred example, the utility model can be further configured as follows: a swivel ring seat is rotatably sleeved on the outer periphery of the fixed ring, and the drive motor, wire feeding assembly and welding gun body are arranged in parallel and are all fixed on the inner side of the fixed ring.

[0007] In a preferred example, the utility model can be further configured as follows: the spindle tube is a hollow tubular structure and both ends penetrate the inner side of the driving motor for the passage of the welding wire.

[0008] In a preferred example, the utility model can be further configured as follows: the convex ridge cross-section of the guide roller surface is an isosceles triangle, a gap for the welding wire to pass through is provided between the three guide rollers, and the three guide rollers are evenly arranged in the circumferential direction.

[0009] In a preferred example, the utility model can be further configured as follows: the guide roller and the driven tooth are connected via a ball head transmission, and a spring for abutting against the surface of the guide roller shaft is provided on the inner side of the drive seat.

[0010] In a preferred example, the utility model can be further configured as follows: the wire feeding tube is a hollow curved tube structure, and one end of the wire feeding tube is provided with a wire outlet hole facing the end of the welding gun body.

[0011] The beneficial effects achieved by the utility model are:

[0012] 1. In the utility model, a new welding wire conveying structure is provided, and a plurality of guide rollers are used to perform synchronous rolling motion to convey the welding wire. The welding wire is electrically conveyed under the drive of a driving motor. The spiral guide roller fits tightly with the surface of the welding wire to avoid slipping and improve welding stability.

[0013] 2. In the utility model, the welding gun body and the wire feeding assembly are rotated by a fixed ring, the conveying direction and welding direction of the welding wire are adjusted, a plurality of guide rollers are arranged in a circumferential direction to wrap and convey the welding wire to avoid derailment, and the welding wire is conveyed according to the welding process to ensure the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the welding gun main body installation structure of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a driving motor and a wire feeding assembly according to an embodiment of the utility model;

[0017] Figure 4 The figure is a schematic diagram of the structure of a driving seat according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] 100, welding gun body; 110, wire feeder seat; 120, fixed ring; 121, rotating ring seat;

[0020] 200, driving motor; 210, spindle tube;

[0021] 300, wire feeding assembly; 310, driving seat; 320, guide roller; 311, transmission gear plate; 321, driven gear; 400, wire feeding tube. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0023] An automatic wire feeding electric welding gun provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0024] Combination Figure 1-4 As shown, the utility model provides an automatic wire feeding electric welding gun, comprising: a welding gun body 100, a driving motor 200 and a wire feeding assembly 300, a wire feeding seat 110 for fixing the driving motor 200 is provided on the surface of the welding gun body 100, a fixed ring 120 is fixedly installed on the periphery of the wire feeding seat 110 and the welding gun body 100, the wire feeding assembly 300 is fixedly installed at one end of the driving motor 200, a spindle tube 210 is provided at the output end of the driving motor 200, the end of the spindle tube 210 penetrates into the interior of the driving seat 310 and is fixedly connected with a transmission gear disc 311, the wire feeding assembly 300 comprises a driving seat 310 and a plurality of guide rollers 320, the guide rollers 320 are rotatably installed on the surface of the driving seat 310 and one end of the guide rollers is provided with driven teeth 321, the driven teeth 321 are in transmission meshing with the inner side of the transmission gear disc 311, and the surface of the guide rollers 320 is provided with spiral convex ridges.

[0025] In this embodiment, a swivel ring seat 121 is rotatably sleeved on the outer periphery of the fixed ring 120 , and the drive motor 200 , the wire feeding assembly 300 and the welding gun body 100 are arranged in parallel and are all fixed to the inner side of the fixed ring 120 .

[0026] Specifically, by utilizing the relative rotation of the rotating ring seat 121 and the fixed ring 120, the welding gun body 100 can rotate in an angle and the driving motor 200 and the wire feeding assembly 300 can change directions synchronously, thereby improving the welding flexibility.

[0027] In this embodiment, the spindle tube 210 is a hollow tubular structure with both ends penetrating the inner side of the driving motor 200 for the welding wire to pass through.

[0028] In this embodiment, the cross-section of the convex ridges on the surface of the guide roller 320 is an isosceles triangle, and gaps for the welding wire to pass through are provided between the three guide rollers 320. The three guide rollers 320 are evenly arranged in the circumferential direction.

[0029] In this embodiment, the guide roller 320 and the driven tooth 321 are connected via a ball head transmission, and a spring for contacting with the shaft surface of the guide roller 320 is provided on the inner side of the driving seat 310 .

[0030] Specifically, the inclination angle of the guide roller 320 can be changed under the ball head connection transmission, and under the abutment of the spring inside the driving seat 310, the guide roller 320 has a tendency to tilt radially, thereby adjusting the gap size between the guide rollers 320 according to different welding wire diameters and ensuring the fitting effect between the guide roller 320 and the surface of the welding wire.

[0031] In this embodiment, the wire feeding tube 400 is a hollow curved tube structure, and one end of the wire feeding tube 400 is provided with a wire outlet hole facing the end of the welding gun body 100 .

[0032] The working principle and use process of this utility model:

[0033] When the automatic wire feeding electric welding gun is in use, the welding wire is passed through the main shaft tube 210 and output through the wire feeding assembly 300 and the wire feeding tube 400, and is led out from the end of the wire feeding tube 400 to the end of the welding gun body 100. The main shaft tube 210 drives the transmission gear plate 311 to rotate under the drive of the driving motor 200, and the transmission gear plate 311 and the driven teeth 321 are engaged and driven to drive each guide roller 320 to rotate synchronously. The surface of the driven teeth 321 is in contact with the wire feeding surface to convey the welding wire. The spiral leaves on the surface of the driven teeth 321 are in contact with the welding wire. The welding wire is conveyed in a creeping manner. The conveying process is slow and stable, which can effectively cooperate with the work of the welding gun.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic wire feeding welding gun, characterized in that: include: A welding gun body (100), a driving motor (200) and a wire feeding assembly (300); a wire feeding seat (110) for fixing the driving motor (200) is provided on the surface of the welding gun body (100); a fixed ring (120) is fixedly installed on the periphery of the wire feeding seat (110) and the welding gun body (100); the wire feeding assembly (300) is fixedly installed on one end of the driving motor (200); a main shaft tube (210) is provided at the output end of the driving motor (200); The end of the main shaft tube (210) passes through the interior of the driving seat (310) and is fixedly connected to a transmission toothed disc (311). The wire feeding assembly (300) comprises a driving seat (310) and a plurality of guide rollers (320). The guide rollers (320) are rotatably mounted on the surface of the driving seat (310) and are provided with driven teeth (321) at one end. The driven teeth (321) are in transmission meshing engagement with the inner side of the transmission toothed disc (311). The surface of the guide rollers (320) is provided with spiral ridges.

2. An automatic wire feeding welding gun according to claim 1, characterized in that: The outer periphery of the fixed ring (120) is rotatably sleeved with a swivel seat (121); the drive motor (200), the wire feeding assembly (300) and the welding gun body (100) are arranged in parallel and are all fixed to the inner side of the fixed ring (120); the angular rotation of the welding gun body (100) is achieved by the relative rotation of the swivel seat (121) and the fixed ring (120), and the drive motor (200) and the wire feeding assembly (300) change direction synchronously.

3. The automatic wire feeding welding gun according to claim 1, characterized in that: The main shaft tube (210) is a hollow tubular structure, and both ends of the main shaft tube penetrate the inner side of the driving motor (200) for the passage of welding wire.

4. The automatic wire feeding welding gun according to claim 1, characterized in that: The convex ridge cross section of the surface of the guide roller (320) is in the form of an isosceles triangle, gaps for the welding wire to pass through are provided between the three guide rollers (320), and the three guide rollers (320) are evenly arranged in a circumferential direction.

5. The automatic wire feeding welding gun according to claim 1, characterized in that: The guide roller (320) and the driven tooth (321) are connected via a ball head transmission, and a spring for contacting the surface of the guide roller (320) shaft is provided on the inner side of the drive seat (310). The inclination angle of the guide roller (320) can be changed under the ball head transmission connection, and the guide roller (320) has a radial tilting tendency under the contact of the spring on the inner side of the drive seat (310), so that the gap between the guide rollers (320) can be adjusted according to different welding wire diameters, and the fitting effect between the guide roller (320) and the welding wire surface is ensured.

6. The automatic wire feeding welding gun according to claim 1, characterized in that: The wire feeding tube (400) is a hollow curved tube structure, and one end of the wire feeding tube (400) is provided with a wire outlet hole facing the end of the welding gun body (100).

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