Welding gun with internal scraps convenient to clean

Abstract

The utility model relates to a welding gun with internal chips convenient to clean, which comprises a tubular welding gun body, a wire feeding channel is axially arranged in the welding gun body along the center, the welding gun body is sequentially provided with a transmission section, a cleaning section and a welding gun head along the wire feeding direction, and a chip storage hole communicated with the wire feeding channel is arranged in the cleaning section close to the center. A gun cleaning prompter capable of detecting chippings in the wire feeding channel is arranged on the top, close to the cleaning section, of the welding gun head, and when the interior of the wire feeding channel needs to be cleaned, the gun cleaning prompter gives out a prompt. Welding wire chippings in the wire feeding channel are detected through the detection unit connected with the gun cleaning prompter, the prompting lamp gives out a prompt of cleaning metal chippings, meanwhile, the chipping storage hole in the cleaning section can temporarily store redundant chippings, the performance of the wire feeding channel is guaranteed, personnel can observe through the transparent cleaning section shell, and the cleaning efficiency is improved. Therefore, the welding quality and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a welding gun with internal debris that is easy to clean. Background Art

[0002] For gas metal arc welding, the welding wire needs to be continuously fed into the molten pool so that it melts under the action of the arc, thereby achieving welding. However, during the feeding process, the welding wire will rub against the wall of the wire feed channel, resulting in a large amount of metal debris. Once the metal debris accumulates in the wire feed channel, it will block the wire feed channel, increase the resistance to wire feeding, slow down the wire feeding speed, and destroy the stability of the welding process parameters. In severe cases, it will cause the weld quality to deteriorate, or even directly lead to welding failure. Therefore, welding operators need to clean the wire feed channel frequently to make the wire feeding process smooth. In actual operation, welding operators cannot perceive the blockage of metal debris and can only make a rough judgment based on the quality of the weld or the appearance of the arc. If the metal debris generated by the friction between the welding wire and the channel can be sensed and an instruction to clean the channel is issued, it will greatly facilitate the work of the welding operator and directly improve the welding quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a welding gun with internal debris that is easy to clean, so as to solve the problem that the channel is blocked by metal debris caused by wear between the welding wire and the wire feeding channel inside the welding gun.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A welding gun with easy internal debris cleaning includes a tubular welding gun body, a wire feeding channel is opened inside the welding gun body along the central axis, the welding gun body is sequentially provided with a transmission section, a cleaning section and a welding gun head along the wire feeding direction, a chip storage hole communicated with the wire feeding channel is provided near the center of the cleaning section, and a gun cleaning indicator capable of detecting debris inside the wire feeding channel is provided on the top of the welding gun head near the cleaning section. When the inside of the wire feeding channel needs to be cleaned, the gun cleaning indicator gives a prompt.

[0006] As a preferred embodiment, the gun cleaning reminder includes a control board, a power supply and a detection unit. One side of the detection unit is connected to the wire feeding channel, and the other side of the detection unit is electrically connected to the control board. The control board is electrically connected to the power supply, and a start button, an off button and a reminder light are provided on the control board.

[0007] As a preferred embodiment, the detection unit includes a hollow through-hole insulating lining, an inner cavity communicating with the wire feeding channel is formed inside the insulating lining, an insulating cover is provided on one end face of the inner cavity away from the wire feeding channel, two detection electrodes inserted into the inner cavity are provided on the insulating cover, and one end of the two detection electrodes extending out of the insulating cover is respectively connected to two connecting wires, and the two connecting wires are respectively connected to the control board.

[0008] As a preferred embodiment, the cleaning section includes a coaxially sleeved cleaning section outer shell and a cleaning section inner rod, and the cleaning section inner rod is circumferentially provided with chip storage holes, which are tapered openings that gradually expand toward one side of the cleaning section outer shell.

[0009] As a preferred embodiment, the outer shell of the cleaning section is made of transparent insulating PET material, the inner rod of the cleaning section is made of metal material, the two ends of the cleaning section are connected to the transmission section and the welding gun head by detachable threads, and the front end insulating sleeve and the rear end insulating sleeve are respectively provided on the two end surfaces of the inner rod of the cleaning section.

[0010] The beneficial effects of the present invention are as follows: the present invention detects the welding wire debris in the wire feeding channel through the detection unit, and when a path is formed between the two detection electrodes, the internal control board of the gun cleaning reminder emits a reminder light to clean the metal debris based on this signal, and at the same time, the chip storage hole inside the cleaning section can also temporarily store excess debris to ensure the performance of the wire feeding channel. Personnel can also observe through the transparent cleaning section shell and judge whether to perform the cleaning operation, thereby improving the welding quality and production efficiency. The present invention solves the problem of wire feeding channel blockage during welding, reflects the degree of accumulation of metal debris generated by the friction between the welding wire and the channel, promptly reminds the welding operator to perform the cleaning operation, and also alleviates the problem of unstable wire feeding caused by debris accumulation, thereby improving the welding quality. The structure is simple, the installation is convenient, the operation is convenient, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0012] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0013] Figure 2 Schematic diagram of the interior of the practical detection unit;

[0014] Figure 3 is a schematic diagram of the cleaning section;

[0015] Figure 4 for Figure 3 Schematic diagram along the AA direction;

[0016] Figure 5 This is a schematic diagram of the circuit connection of the utility model;

[0017] Figures 1 to 5 Explanation of the reference numerals in the accompanying drawings: 1. welding gun body; 2. wire feeding channel; 3. gun cleaning reminder; 4. control panel; 5. power supply; 6. cleaning section; 7. transmission section; 8. detection unit; 61. cleaning section housing; 62. cleaning section inner rod; 63. chip storage hole; 64. front end insulating sleeve; 65. rear end insulating sleeve; 81. connecting wire; 82. insulating cover; 83. detection electrode; 84. insulating hole lining; 85. inner cavity. DETAILED DESCRIPTION

[0018] The specific implementation scheme of the present utility model is described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 5 The welding torch, which is shown to facilitate cleaning of internal debris, includes a welding torch body 1, a wire feed channel 2, a gun clean indicator 3, a control panel 4, a power supply 5, a cleaning section housing 61, an inner rod 62 of the cleaning section, a chip storage hole 63, a detection unit 8, and a transmission section 7. The welding torch body 1, the inner rod 62 of the cleaning section, and the transmission section 7 are all provided with a wire feed channel 2. The gun clean indicator 3 is provided above the connection between the welding torch body 1 and the cleaning section housing 61. The inner rod 62 of the cleaning section is provided with a chip storage hole 63. The welding torch head, the cleaning section 6, and the transmission section 7 are all threadedly connected. The control panel 4 and the power supply 5 are provided inside the gun clean indicator 3. The control panel 4 is provided with a start button, an off button, and a warning light. After the welding wire enters the wire feeding channel 2, the contact and friction between the welding wire and the inside of the wire feeding channel 2 will produce metal debris. The metal debris enters the chip storage hole 63 on the one hand, and enters the hole where the detection unit is located on the other hand. When the metal debris accumulates to a certain extent, it will connect the A detection electrode and the B detection electrode, so that current flows between the two detection electrodes 83. After the control board 4 detects this current signal, it will issue a gun clear prompt light prompt.

[0020] The cleaning section shell 61 can be made of transparent insulating PET material. The inner rod 62 of the cleaning section is tubular for the welding wire to pass through and can be made of metal components to improve the rigidity of the welding gun. The two ends of the cleaning section 6 are connected to the welding gun head and the transmission section 7 by threads, which is convenient for cleaning the debris in the chip storage hole 63 after disassembly. The gaskets between the two ends of the cleaning section shell 61 and the welding gun head and the transmission section 7 can be made of insulating materials, such as bakelite and epoxy materials.

[0021] The gun cleaning reminder 3 is located on the side of the welding gun head close to the cleaning section housing 61. A control panel 4 and a power supply 5 are provided inside the gun cleaning reminder 3. The control panel 4 is provided with a reminder light, a start button, and an off button. The power supply of the entire control panel 4 is provided by the power supply 5. The power supply 5 provides a DC power supply of 4.5~6V, and the power supply 5 can be composed of a battery.

[0022] The detection unit 8 consists of an insulating cover 82, two detection electrodes 83 including an A detection electrode and a B connecting electrode, and an insulating hole lining 84. The A detection electrode and the B connecting electrode are respectively connected to two connecting wires 81, namely the A connecting wire and the B connecting wire. The insulating cover 82 and the insulating hole lining 84 can both be made of insulating material phenolic resin. The A connecting wire and the B connecting wire are respectively connected to IO1 and GND on the control board 4.

[0023] In this embodiment, the control board 4 issues a warning signal via port 102. The warning light is preferably a two-color LED. The two colors are striking red and green. Red indicates that the torch wire channel needs to be cleaned as soon as possible, while green indicates that cleaning is not necessary. For ease of operation and visibility, the warning light, start button, and off button are located above the torch cleaning indicator 3 and enclosed in a transparent PET insulating cover.

[0024] When the start button 42 is turned on, the control board 4 first reads the value of IO1. If metal debris accumulates and forms a path between the A detection electrode and the B connection electrode, the prompt light outputs red; otherwise, if no path is formed between the A detection electrode and the B connection electrode, the prompt light outputs green.

[0025] The working process of this utility model is:

[0026] (1) The welding operator picks up the welding gun body 1.

[0027] (2) Press the start button and the control panel 4 starts working.

[0028] (3) The control board 4 determines whether a path is formed between the detection electrode A and the connection electrode B.

[0029] (4) When no path is formed, the indicator light will be solid green.

[0030] (5) When a path is formed, the indicator light turns red and stays on.

[0031] (7) The welding operator can observe the feedback from the prompt light or through the transparent cleaning section housing 61 to observe the accumulation of metal debris in the chip storage hole 63 and decide whether to clean the gun.

[0032] (8) When the operation is completed, press the close button.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A welding gun with easy internal debris cleaning, characterized by: The invention comprises a tubular welding gun body (1), wherein a wire feeding channel (2) is provided in the interior of the welding gun body (1) along the central axis, and a transmission section (7), a cleaning section (6) and a welding gun head are sequentially provided in the welding gun body (1) along the wire feeding direction, wherein a chip storage hole (63) communicating with the wire feeding channel (2) is provided near the center of the cleaning section (6), and a gun cleaning indicator (3) capable of detecting chips in the wire feeding channel (2) is provided on the top of the welding gun head near the cleaning section (6). When the interior of the wire feeding channel (2) needs to be cleaned, the gun cleaning indicator (3) issues a prompt.

2. The welding gun with convenient internal debris cleaning according to claim 1, characterized in that: The gun cleaning reminder (3) includes a control panel (4), a power supply (5) and a detection unit (8). One side of the detection unit (8) is connected to the wire feeding channel (2), and the other side of the detection unit (8) is electrically connected to the control panel (4). The control panel (4) is electrically connected to the power supply (5). A start button, an off button and a reminder light are provided on the control panel (4).

3. The welding gun with convenient internal debris cleaning according to claim 2, characterized in that: The detection unit (8) includes a hollow through-hole insulating lining (84), an inner cavity (85) communicating with the wire feeding channel (2) is formed inside the insulating lining (84), an insulating cover (82) is provided on one end face of the inner cavity (85) away from the wire feeding channel (2), two detection electrodes (83) inserted into the inner cavity (85) are provided on the insulating cover (82), one end of the two detection electrodes (83) extending out of the insulating cover (82) is connected to two connecting wires (81), and the two connecting wires (81) are connected to the control board (4) respectively.

4. The welding gun with convenient internal debris cleaning according to claim 1, characterized in that: The cleaning section (6) comprises a coaxially sleeved cleaning section housing (61) and a cleaning section inner rod (62), wherein chip storage holes (63) are distributed circumferentially on the cleaning section inner rod (62), and the chip storage holes (63) are tapered openings that gradually expand toward one side of the cleaning section housing (61).

5. The welding gun with convenient internal debris cleaning according to claim 4, characterized in that: The cleaning section housing (61) is made of a transparent insulating PET material, the cleaning section inner rod (62) is made of a metal material, both ends of the cleaning section (6) are detachably connected to the transmission section (7) and the welding gun head by threads, and a front end insulating sleeve (64) and a rear end insulating sleeve (65) are respectively provided on both end surfaces of the cleaning section inner rod (62).

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