Quick-wear part of combined plasma cutting gun

Abstract

The utility model discloses a quick-wear part of a combined plasma cutting gun. The quick-wear part comprises an electrode, a diverter, an inner nozzle and an outer nozzle, electrode steps are arranged in the middle of the electrode along the circumferential direction; a diverter step is arranged at the far end of the diverter inner hole; the diverter step is matched with the electrode step to limit the axial upward moving position of the electrode; a flow divider clamping groove is formed in the near end of the flow divider inner hole. An inner nozzle step is arranged on the outer circumference of the far end of the inner nozzle and fixedly connected with the flow divider clamping groove in a matched mode. An inner nozzle clamping groove is formed in the middle of the inner nozzle in the circumferential direction. The inner side of the outer nozzle is a conductive part; the outer side of the outer nozzle is wrapped with an insulating part; an outer nozzle inner side step is arranged at the near end of the inner hole of the conductive part on the inner side of the outer nozzle and can just clamp the inner nozzle clamping groove. The utility model aims to combine and connect original independent parts through respective design structures so as to form an independent whole, so that the parts can be mounted and replaced more quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of ion cutting, and more specifically to a consumable part of a combined plasma cutting gun. Background Art

[0002] The existing plug-in plasma cutting consumables are five separate consumables, such as Figure 2 As shown, a conventional electrode 15, a conventional diverter 16, a conventional inner nozzle 17, a conventional outer nozzle 19 and a conventional protective cap 18 are all assembled on a plasma cutting gun for use. On the one hand, it is time-consuming and labor-intensive to assemble and replace, which affects production efficiency; on the other hand, due to the diversity of parts processing, there are errors in assembly. After the five parts are assembled one by one, the accumulated errors are large, thereby reducing the stability of the performance of the plasma cutting gun; on the other hand, in the actual production process, due to the influence of human factors, individual parts may be missed or misassembled, resulting in the plasma cutting gun being unable to work or even damaged. Utility Model Content

[0003] In response to the problems existing in the prior art, the utility model provides a combined plasma cutting gun consumable part, the purpose of which is to combine and connect the original five separate parts through their respective design structures to form an independent whole, which can be installed and replaced more quickly; another purpose is to reduce the errors between parts through internal assembly and inspection before leaving the factory, thereby improving plasma cutting performance; another purpose is to assemble a single part with assembly uniqueness, avoid missing or wrong installation, and thus improve product quality.

[0004] The technical solution of the utility model is: a combined plasma cutting gun consumable parts, including an electrode, a diverter, an inner nozzle and an outer nozzle;

[0005] The electrode is a shaft-like part made of conductive material, the distal surface of the electrode is processed into a taper, the proximal end of the electrode is provided with a radioactive element, and the middle part of the electrode is provided with an electrode step along the circumferential direction;

[0006] The diverter is a barrel-shaped part made of high-temperature resistant insulating material. A diverter step is provided at the distal end of the diverter inner hole. The diverter step cooperates with the electrode step to limit the axial upward movement of the electrode. A diverter slot is provided at the proximal end of the diverter inner hole. The diverter body is provided with a plurality of diverter radial eccentric holes connecting the diverter inner hole and the diverter outer circle.

[0007] The inner nozzle is a hollow shaft-like part made of conductive material. An inner nozzle step is provided at the outer circumference of the distal end of the inner nozzle. The inner nozzle step is matched and fixed to the diverter slot so that the electrode can only make limited axial displacement between the diverter and the inner nozzle. An inner nozzle slot is provided in the middle of the inner nozzle along the circumferential direction.

[0008] The outer nozzle is a barrel-shaped part, the inner side of the outer nozzle is a conductive part, and the outer side of the outer nozzle is wrapped with an insulating part; an outer nozzle inner step is provided at the proximal end of the inner hole of the conductive part inside the outer nozzle, and the outer nozzle inner step can just clamp the inner nozzle slot, so that the inner nozzle and the outer nozzle cannot be separated.

[0009] Furthermore, an outer nozzle outer step is provided at the proximal end of the outer circle of the insulating part outside the outer nozzle;

[0010] The consumable parts of the combined plasma cutting gun also include a protective cap, a protective cap slot is provided at the distal end of the inner hole of the protective cap, and the protective cap slot is cooperatively connected with the outer step of the outer nozzle.

[0011] Furthermore, a plurality of radial eccentric small holes are evenly distributed in the middle area between the diverter step and the diverter slot.

[0012] Furthermore, the diverter step can also cooperate with and limit the plasma gun head.

[0013] Furthermore, the emitting element is hafnium or zirconium.

[0014] The beneficial effects of this utility model are as follows: it provides a modular plasma cutting gun consumable part, combining and connecting the original five separate parts through their respective design structures to form an independent whole, which can be installed and replaced more quickly; the diverter, nozzle, outer nozzle and protective cap are all inseparable from each other, and the electrode can only make limited axial movement within the diverter and the inner hole of the nozzle. Through internal assembly and inspection before shipment, the error between parts is reduced, improving plasma cutting performance; the assembly into a single part ensures assembly uniqueness, avoids missing or incorrect installation, and thus improves product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the consumable parts of the five-in-one plasma cutting gun of the present invention.

[0016] Figure 2 Schematic diagram of the five separate parts commonly used.

[0017] Figure 3 This is a schematic diagram of the consumable parts of the five-in-one plasma cutting gun of the utility model.

[0018] Figure 4 This is an exploded view of the consumable parts of the five-in-one plasma cutting gun of this utility model.

[0019] in:

[0020] 1-Electrode 2-Flow divider 3-Inner nozzle 4-Protective cap

[0021] 7-Radial eccentricity of the diverter

[0022] 5-External nozzle 6-Diverter step 8-Diverter slot hole

[0023] 9-Electrode step 10-Inner nozzle step 11-Inner nozzle slot 12-Outer nozzle inner step

[0024] 13-outer nozzle outer step 14-protection cap slot 15-conventional electrode 16-conventional diverter

[0025] 17- Conventional nozzle 18- Conventional protective cap 19- Conventional outer nozzle 20- The utility model wearing parts DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1 、 3 As shown in Figure 4, a combined plasma cutting gun consumable parts include an electrode 1, a diverter 2, an inner nozzle 3, an outer nozzle 5 and a protective cap 4.

[0029] The electrode 1 is a shaft-like component made of a conductive material. The distal end of the electrode 1 is tapered to match the taper of the mating component, with an angle between 0 and 90 degrees. A radioactive element made of hafnium or zirconium is located at the proximal end of the electrode 1. An electrode step 9 is circumferentially arranged in the middle of the electrode 1.

[0030] The diverter 2 is a barrel-shaped part made of high-temperature resistant insulating material. A diverter step 6 is provided at the distal end of the inner hole of the diverter 2. The diverter step 6 cooperates with the electrode step 9 to limit the axial upward movement of the electrode 1. The diverter step 6 can also cooperate with and limit the position of the plasma gun head. A diverter slot 8 is provided at the proximal end of the inner hole of the diverter 2. The main body of the diverter 2 is provided with a plurality of radial eccentric holes 7 of the diverter connecting the inner hole of the diverter and the outer circle of the diverter. The plurality of radial eccentric holes 7 are evenly distributed in the middle area between the diverter step 6 and the diverter slot 8.

[0031] The inner nozzle 3 is a hollow, shaft-like component made of a conductive material. An inner nozzle step 10 is provided on the outer circumference of the distal end of the inner nozzle 3. This inner nozzle step 10 is matingly connected and fixed to the diverter slot 8, allowing the electrode 1 to move only to a limited extent axially between the diverter 2 and the inner nozzle 3. An inner nozzle slot 11 is provided along the circumference of the central portion of the inner nozzle 3.

[0032] The outer nozzle 5 is a barrel-shaped component, with a conductive component inside and an insulating component outside. An inner step 12 is provided near the inner hole of the conductive component inside the outer nozzle 5. This step 12 fits snugly within the inner nozzle retaining groove 11, preventing the inner nozzle 3 and outer nozzle 5 from separating. An outer step 13 is provided near the outer circumference of the insulating component outside the outer nozzle 5.

[0033] A protective cap retaining groove 14 is provided at the distal end of the inner hole of the protective cap 4 , and the protective cap retaining groove 14 is engaged with the outer step 13 of the outer nozzle.

[0034] Sequentially, the diverter slot on the diverter and the inner nozzle step on the inner nozzle are press-fitted together, while the electrode is positioned within the inner holes of the diverter and inner nozzle to form component 1. The slot on the inner nozzle of this component is then press-fitted together with the step on the outer nozzle to form component 2. The outer step of the outer nozzle of component 2 is then press-fitted together with the slot within the inner hole of the protective cap, ultimately forming the consumable part of the five-in-one plasma cutting gun of this utility model.

[0035] The flow divider, the inner nozzle, the outer nozzle and the protective cap are inseparable from each other, and the electrode can only make limited axial movement in the flow divider and the inner hole of the nozzle.

[0036] The electrode in the consumable part of the combined plasma cutting gun of the utility model is not limited to the connection mode between the electrode and the gun head, and can be a taper fit, a drum spring fit or a crown spring fit.

[0037] The nozzle in the consumable part of the combined plasma cutting gun of the utility model does not limit the cutting mode, and can be cutting, fine cutting, gouging or flush cutting.

[0038] Example 2

[0039] The protective cap in the consumable part of the combined plasma cutting gun of the present invention retains the possibility of not existing, that is, the consumable part of the four-in-one plasma cutting gun can be without the protective cap.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A consumable part of a combined plasma cutting gun, characterized by: It comprises an electrode (1), a flow divider (2), an inner nozzle (3) and an outer nozzle (5); The electrode (1) is a shaft-like part made of a conductive material. The distal surface of the electrode (1) is processed into a taper. The proximal end of the electrode (1) is provided with a radioactive element. The middle portion of the electrode (1) is provided with an electrode step (9) along the circumferential direction. The diverter (2) is a barrel-shaped part made of high-temperature resistant insulating material. A diverter step (6) is provided at the distal end of the inner hole of the diverter (2). The diverter step (6) cooperates with the electrode step (9) to limit the axial upward movement of the electrode (1). A diverter slot (8) is provided at the proximal end of the inner hole of the diverter (2). The main body of the diverter (2) is provided with a plurality of diverter radial eccentric holes (7) connecting the inner hole of the diverter and the outer circle of the diverter. The inner nozzle (3) is a hollow shaft-like part made of conductive material. An inner nozzle step (10) is provided at the outer circumference of the distal end of the inner nozzle (3). The inner nozzle step (10) is matched and fixed to the diverter slot (8), so that the electrode (1) can only make limited axial displacement between the diverter (2) and the inner nozzle (3); an inner nozzle slot (11) is provided in the middle of the inner nozzle (3) along the circumferential direction. The outer nozzle (5) is a barrel-shaped part, the inner side of the outer nozzle (5) is a conductive part, and the outer side of the outer nozzle (5) is wrapped with an insulating part; an outer nozzle inner step (12) is provided at the proximal end of the inner hole of the conductive part inside the outer nozzle (5), and the outer nozzle inner step (12) can just clamp the inner nozzle clamping groove (11), so that the inner nozzle (3) and the outer nozzle (5) cannot be separated.

2. The consumable part of a combined plasma cutting gun according to claim 1, characterized in that: An outer nozzle outer step (13) is provided at the proximal end of the outer circle of the insulating part outside the outer nozzle (5); The consumable parts of the combined plasma cutting gun also include a protective cap (4), a protective cap slot (14) is provided at the distal end of the inner hole of the protective cap (4), and the protective cap slot (14) is cooperatively connected with the outer step (13) of the outer nozzle.

3. The consumable part of a combined plasma cutting gun according to claim 1, characterized in that: A plurality of radial eccentric small holes (7) are evenly distributed in the middle area between the diverter step (6) and the diverter slot (8).

4. The consumable part of a combined plasma cutting gun according to claim 1, characterized in that: The diverter step (6) can also cooperate with and limit the plasma gun head.

5. The consumable part of a combined plasma cutting gun according to claim 1, characterized in that: The emitting element is hafnium or zirconium.

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