CN220372418U

CN220372418U - Plasma cutting gun

Info

Publication number: CN220372418U
Application number: CN202321752075.6U
Authority: CN
Inventors: 郭莹敏
Original assignee: Huangshan Zhangshi Welding Technology Co ltd
Current assignee: Huangshan Zhangshi Welding Technology Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2024-01-23
Anticipated expiration: 2033-07-05

Abstract

The utility model discloses a plasma cutting gun, which comprises a gun body provided with a handle and a gun head assembly arranged on the gun body, wherein the gun head assembly comprises a protective cover, a shunt, an electrode and a nozzle, one end of the gun body is provided with a protective cover connector, an insulating sleeve is arranged in the protective cover connector, an electrode seat is arranged in the insulating sleeve, an electrode jack is arranged in the electrode seat, the electrode is inserted into the electrode jack, a plurality of air outlet holes are arranged between the electrode seat and the insulating sleeve, the shunt is sleeved on the electrode, the nozzle is arranged on the electrode and is arranged in the shunt, the protective cover is sleeved on the nozzle and is connected with the protective cover connector, a gun head support frame is arranged on the outer wall of the protective cover, and the height difference between the end face of the nozzle and the end face of the nozzle is formed by the non-contact of the end face of the nozzle. The utility model is non-contact cutting, which prolongs the service life of the nozzle, and has wider cutting range and can cut the plate with the thickness of 1-20 mm.

Description

Plasma cutting gun

Technical Field

The utility model relates to a plasma cutting gun, and belongs to the technical field of plasma cutting guns.

Background

The plasma cutting gun is one kind of apparatus for cutting metal material with high temperature plasma, and has the principle of heating metal material to over the melting point with high temperature plasma, and then blowing molten metal with oxygen, nitrogen or other gas to realize the cutting. At present, the existing plasma cutting guns on the market are all in contact cutting under 80A, the nozzle of the contact cutting gun head is in direct contact with a steel plate, a thick plate cannot be cut, only a small thin plate can be cut for use, the nozzle of the gun head can be influenced by heat energy generated by cutting the steel plate, the service life is short, and the nozzle of the gun head is high in damage rate.

The utility model discloses a plasma cutting rifle head structure as in 201520517361.3, includes: cutting the gun head body; the cutting gun unit is arranged in the cutting gun head body; the cutting gun unit is provided with a regulating valve; the regulating valve comprises a shell, and a regulating cavity is arranged in the shell; the sealing beads are arranged in the adjusting cavity; one end of the screw rod is inserted into the adjusting cavity, and one end of the screw rod is connected with the sealing beads; the screw cap is connected with the other end of the screw rod. According to the plasma cutting gun head structure, the regulating valve is arranged on the cutting gun head body, so that an operator can regulate air flow during cutting, and the cutting effect can be directly seen. And the operator does not have to run.

Although the above-mentioned technique has proposed putting the governing valve on the cutting rifle head body, operating personnel can adjust the air current when cutting, but the cutting rifle head nozzle in this technique still is the direct contact steel sheet, and cutting heat source resilience nozzle, high temperature shortens nozzle life, consequently, can not solve current technical problem in the above-mentioned technique of disclosure, need develop a non-contact cutting's plasma cutting torch.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide a plasma cutting gun which solves the problem that the nozzle has short service life due to the fact that a cutting heat source rebounds to the nozzle.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a plasma burning torch, includes the rifle body that is provided with the handle and installs the rifle head subassembly on the rifle body, rifle head subassembly includes safety cover, shunt, electrode, nozzle, the one end of rifle body sets up the safety cover connector for be connected with the safety cover, set up the insulating sleeve in the safety cover connector, set up the electrode holder in the insulating sleeve, set up the electrode jack in the electrode holder, the electrode is pegged graft in the electrode jack, set up a plurality of ventholes between electrode holder and insulating sleeve, the shunt cup joints on the electrode, the nozzle is installed on the electrode, and place the shunt in wherein, the safety cover cup joints and installs on the nozzle and be connected with the safety cover connector, the outer wall of safety cover is installed rifle head support frame, have the difference in height that makes nozzle terminal surface and cutting plane contactless between the end of rifle head support frame and the nozzle terminal surface.

Further, the gun body comprises a plasma gun wire, the plasma gun wire comprises a main cable, a high-frequency arc-guiding wire and a control wire plug, a spring cable protective sleeve is arranged outside the plasma gun wire, and the spring cable protective sleeve is arranged at one end, close to the handle side, of the gun body.

Furthermore, a switch is arranged on the inner side of the handle, an anti-misoperation touch plate is hinged on the handle, and the anti-misoperation touch plate is positioned at the switch to shield the switch.

Further, the gun head support frame comprises an arc-shaped mounting ring, two support rods connected with two ends of the arc-shaped mounting ring, one end of each support rod is connected with an arc-shaped rod at the other end of each support rod, and a cutting gap is reserved between the two arc-shaped rods.

Further, a buckling groove is formed in the protective cover, and the arc-shaped mounting ring is mounted on the buckling groove.

Furthermore, the height difference between the suspension end of the gun head support frame and the end face of the nozzle, which is used for enabling the end face of the nozzle not to be in contact with the cutting surface, is 2-3 mm, and when the gun head support frame is used for cutting, a certain distance is reserved between the high temperature and the nozzle, so that the service life of the nozzle can be prolonged.

Further, the inner wall of the protective cover is provided with a metal connecting layer which is in threaded connection with the gun body, and after the gun body is screwed, an end opening of the metal connecting layer is connected with the outer diameter of the nozzle in an extrusion mode.

Compared with the prior art, the utility model has the advantages that:

1. the nozzle of the non-contact cutting gun head is 2-3 mm away from the cutting surface, so that the high temperature is away from the nozzle for a certain distance, the nozzle is cooled, and the service life is prolonged;

2. the thickness of the steel plate cut by the non-contact cutting gun head is increased, and the plate with the thickness of 1-20 mm can be cut.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an exploded view of the gun head assembly of the present utility model.

In the figure: 1. gun body 2, gun head assembly, 3, safety cover, 4, insulating sleeve, 5, electrode, 6, shunt, 7, nozzle, 8, gun head support frame, 9, prevent mistake touch panel, 10, safety cover connector.

Detailed Description

For a better description of the present utility model, the technical solution of the present utility model will be easily understood, and the present utility model will be further described in detail with reference to the accompanying drawings and the specific embodiments. It is to be understood that the following examples are provided for illustration only and are not intended to represent or limit the scope of the utility model as claimed.

Example 1

The plasma cutting torch comprises a torch body 1 provided with a handle and a torch head assembly 2 arranged on the torch body 1, wherein the torch head assembly 2 comprises a protective cover 3, a current divider 6, an electrode 5 and a nozzle 7, one end of the torch body 1 is provided with a protective cover connector 10 which is used for being connected with the protective cover 3, an insulating sleeve 4 is arranged in the connecting opening of the protective cover 3, an electrode seat is arranged in the insulating sleeve 4, an electrode jack is arranged in the electrode seat, the electrode 5 is inserted in the electrode jack, a plurality of air outlet holes are arranged between the electrode seat and the insulating sleeve 4, the current divider 6 is sleeved on the electrode 5, the nozzle 7 is arranged on the electrode 5, the current divider 6 is arranged in the current divider, the protective cover 3 is sleeved on the nozzle 7 and connected with the protective cover connector, a torch head support 8 is arranged on the outer wall of the protective cover 3, and a height difference which enables the nozzle end face to be not contacted with a cutting face is arranged between the suspension end of the torch head support 8 and the nozzle end face.

The gun body 1 comprises a plasma gun wire, wherein the plasma gun wire comprises a main cable, a high-frequency arc guiding wire and a control wire plug, a spring cable protective sleeve is arranged outside the plasma gun wire, and the spring cable protective sleeve is arranged at one end, close to the handle side, of the gun body.

The inner side of the handle is provided with a switch, the handle is hinged with an anti-misoperation touch plate 9, and the anti-misoperation touch plate 9 is positioned at the switch to shield the switch.

As a design, the gun head support frame 8 comprises an arc-shaped mounting ring, two support rods connected with two ends of the arc-shaped mounting ring, and an arc-shaped rod with one end connected with the other end of the support rod, wherein a cutting gap is reserved between the two arc-shaped rods.

The protecting cover 3 is provided with a buckling groove, and the arc-shaped mounting ring is arranged on the buckling groove.

The height difference between the suspension end of the gun head support frame 8 and the end face of the nozzle is 2-3 mm, so that the end face of the nozzle is not contacted with the cutting surface, and the high temperature is a distance away from the nozzle during cutting, so that the service life of the nozzle can be prolonged.

The inner wall of the protective cover 3 is provided with a metal connecting layer which is in threaded connection with the gun body, and after the gun body is screwed, an end opening of the metal connecting layer is connected with the outer diameter of the nozzle in an extrusion mode.

In the embodiment, the non-contact cutting gun head is adopted, and the nozzle is 2-3 mm away from the cutting surface, so that the high temperature is separated from the nozzle by a certain distance, the nozzle is cooled, and the service life is prolonged; the thickness of the steel plate cut by the non-contact cutting gun head is increased, and the plate with the thickness of 1-20 mm can be cut.

Claims

1. The utility model provides a plasma cutting torch, includes the rifle body that is provided with the handle and installs the rifle head subassembly on the rifle body, rifle head subassembly includes safety cover, shunt, electrode, nozzle, its characterized in that: the one end of rifle body sets up the safety cover connector for be connected with the safety cover, set up the insulating sleeve in the safety cover connector, set up the electrode holder in the electrode holder, set up the electrode jack in the electrode holder, the electrode is pegged graft in the electrode jack, set up a plurality of ventholes between electrode holder and insulating sleeve, the shunt cup joints on the electrode, the nozzle is installed on the electrode, and place the shunt therein, the safety cover cup joints and installs on the nozzle and be connected with the safety cover connector, install the rifle head support frame on the outer wall of safety cover, have the difference in height that makes nozzle terminal surface and cutting face contactless between the suspension end of rifle head support frame and the nozzle terminal surface.

2. The plasma cutting torch according to claim 1, wherein: the gun body comprises a plasma gun line, the plasma gun line comprises a main cable, a high-frequency arc guiding line and a control line plug, a spring cable protective sleeve is arranged outside the plasma gun line, and the spring cable protective sleeve is arranged at one end, close to the handle side, of the gun body.

3. The plasma cutting torch according to claim 2, wherein: the inner side of the handle is provided with a switch, the handle is hinged with an anti-misoperation touch plate, and the anti-misoperation touch plate is positioned at the switch to shield the switch.

4. The plasma cutting torch according to claim 1, wherein: the gun head support frame comprises an arc-shaped mounting ring, two support rods connected with two ends of the arc-shaped mounting ring, one end of each support rod is connected with an arc-shaped rod at the other end of each support rod, and a cutting gap is reserved between the two arc-shaped rods.

5. The plasma cutting torch according to claim 4, wherein: the protecting cover is provided with a buckling groove, and the arc-shaped mounting ring is arranged on the buckling groove.

6. The plasma cutting torch according to claim 1, wherein: the height difference between the suspension end of the gun head support frame and the end face of the nozzle, which makes the end face of the nozzle not contacted with the cutting surface, is 2-3 mm.

7. The plasma cutting torch according to claim 1, wherein: the inner wall of the protective cover is provided with a metal connecting layer which is in threaded connection with the gun body, and after the gun body is screwed, an end opening of the metal connecting layer is connected with the outer diameter of the nozzle in an extrusion mode.