CN2707417Y

CN2707417Y - Arc-guide type air plasma cutting machine

Info

Publication number: CN2707417Y
Application number: CN 200420064708
Authority: CN
Inventors: 黄煌南
Original assignee: SHENGZHAN CO Ltd
Current assignee: SHENGZHAN CO Ltd
Priority date: 2004-06-02
Filing date: 2004-06-02
Publication date: 2005-07-06
Anticipated expiration: 2014-06-02

Abstract

The utility model relates to an arc-guide type air plasma cutting machine. The basic structure of the utility model are that the front end of an airbrush joint is assembled with a group of nozzle device respectively connected with a positive and a negative electrode; the rear end of the airbrush joint is connected with a pipeline with the function of electric conduction and ventilation; thus the air plasma cutting machine which can use densely and uniformly compressed air current and heat energy generated by ionization and alloying of electric force to cut metal is formed. The utility model is characterized in that an insulated lantern ring locked and fastened by a protective cap is arranged between the electric pole nozzle and the nozzle of the nozzle device to quickly finish assemblage to be provided with exact and coaxial clearance, and an air duct is arranged between the electric pole nozzle and the nozzle of the nozzle device to generate uniformly compressed helical air current.

Description

Arc-guide type air electricity slurry cutting gun structure

Technical field

The relevant a kind of arc-guide type air electricity slurry cutting gun structure of the utility model, especially finger is a kind of has positive and negative electrode respectively outside nozzles and electrode mouth, and utilizes intensive compression uniform airflow to produce the structure that the heat energy with arclight comes cutting metal with electric power fusion ionization.

Background technology

At present known arc-guide type air electricity slurry cutting gun structure, wherein electrode mouth and nozzles are to make with metal material, and be locked on the spray gun joint with the structure that screws togather respectively and be connected to respectively on the electrode tip of negative electricity and positive electricity, to form the kenel of coaxial package, again with a sealed coating of protective cap of insulating; But because electrode mouth wherein and nozzles all lock on this spray gun joint with screw-in version, with regard to thread structure, it is the helical form with an angle of inclination, so it is when screwing togather locking electrode mouth or nozzles, to be easy to make it to produce and the phenomenon of disalignment, cause difficulty allow and keep concentric circles gap accurately between inside and outside co-axially fixed electrode mouth and the nozzles; In when, when above-mentioned gap generation deviation the situation of air trapping or sinuous flow taking place, high pressure draught when cutting work can't evenly be blown out smoothly, cause influencing the cutting quality of its reality, and easily produce in shower nozzle that heat is concentrated and the damage that causes spare part.

Summary of the invention

The designer of this case comparatively bothers when being configured in assembling thoughts on known arc-guide type air electricity slurry cutting gun and air-flow is easily given birth to obstruction and produce accumulation of heat in spray nozzle device, and influence cutting quality and the flimsy disappearance of generation nozzle assembly, and design a kind of brand-new arc-guide type air electricity slurry cutting gun structure.

Main purpose of the present utility model is to provide a kind of arc-guide type air electricity slurry cutting gun structure, the combination of nozzles wherein and electrode mouth is to establish an insulation collar betwixt, utilize the driving fit of the flange end face of joining between electrode mouth, the insulation collar and nozzles, can finish assembling fast and accurately, with the lifting craftmanship.

Of the present utility model time a purpose is to provide a kind of arc-guide type air electricity slurry cutting gun structure, wherein between nozzles and electrode mouth, has gap accurately, and cooperate the design of special air passage, and can produce of the gap ejection of the spiral air flow of even high pressure by nozzles and electrode mouth, to promote the damage of cutting quality and minimizing assembly.

A purpose more of the present utility model is to provide a kind of arc-guide type air electricity slurry cutting gun structure, wherein between the positive electricity end that is provided with within the spray gun joint and negative electricity are extreme, be provided with the length insulating bushing of outstanding positive electricity end rear and front end respectively especially, to prevent between the positive and negative electrode end, the producing arcing phenomenon.

For reaching above-mentioned purpose, spray gun joint in the utility model includes a negative electricity and extremely reaches a positive electricity end, and have first external screw thread at the extreme front end of negative electricity, the positive electricity end front end has second external screw thread, and is provided with the rear and front end insulating bushing of outstanding positive electricity end respectively in negative electricity between the extreme and positive electricity end; And spray nozzle device is made up of cooling duct, electrode mouth, the insulation collar, nozzles and protective cap at least; Wherein, the cooling duct continued access also extends to forward near electrode mouth interior forward end in the air duct front end of spray gun joint; The electrode mouth is hollow cap shape, has outside flange and female adapter in its back-end, but this female adapter of mat is screwed together on the first extreme external screw thread of the interior negative electricity of spray gun joint and the conducting negative electrode, and is provided with several radially pores at its flange place; The insulation collar is the cylindricality ring-type, and end face and internal diameter can overlap and merge the flange the place ahead that is resisted against the electrode mouth thereafter, and the footpath appropriate location is provided with several radially pores within it; Nozzles are hollow cap shape, and its internal diameter can form the gap greater than the external diameter of electrode mouth, and has the outside flange and the ascending edge of indent in this nozzles bottom surface, and this ascending edge can be socketed on the insulation collar front end face; Protective cap is for being made by a metal material and cylindric at its outside coated insulation layer; can be coated on the flange of nozzles and have an inwardly outstanding inner edge at its front end; have female adapter in its back-end and can be locked on second external screw thread of the positive electricity end in the spray gun joint, and make positive electrode conduct to nozzles through it.

During according to above-mentioned tectonic association, it screws togather the electrode mouth earlier and is locked on the spray gun joint, to insulate the in regular turn again collar and nozzles are sheathed on outside the electrode mouth, at last be placed in to screw togather to be locked in after the above-mentioned combining structure and finish assembling on the spray gun joint fast with protective cap, and can make electrode mouth and nozzles keep coaxial socket state and maintain suitable airflow clearance, can promote craftmanship; Again, the spiral air flow that air-flow wherein can form even compression produces preferable cooling effect by the gap between electrode mouth and nozzles, to reduce the damage of spare part.

Description of drawings

Fig. 1 is an embodiment three-dimensional exploded view of the present utility model.

Fig. 2 is the utility model three-dimensional combination figure embodiment illustrated in fig. 1.

Fig. 3 is the utility model side-looking section constitutional diagram embodiment illustrated in fig. 1.

Fig. 4 is another embodiment schematic diagram of the insulation collar in the utility model.

The component symbol explanation

1 ... spray gun joint 2 ... spray nozzle device

3 ... pipeline 10 ... air duct

11 ... negative electricity extreme 12 ... positive electricity end

13 ... insulating bushing 21 ... the electrode mouth

22 ... the insulation collar 23 ... nozzles

24 ... protective cap 111...... first external screw thread

121...... the second external screw thread 211...... flange

212...... female adapter 213,224...... pore

221...... rear end face 222...... internal diameter

223...... front end face 225...... inclined plane

231...... flange 232...... ascending edge

241...... inner edge 242...... female adapter

The specific embodiment

At first, see also shown in Fig. 1,2, arc-guide type air electricity slurry cutting gun structure described in the utility model, it is mainly constructed and includes a spray gun joint 1 and one group of spray nozzle device 2 constitutes, and spray nozzle device 2 devices are at this spray gun joint 1 front end, the rear end then is connected the pipeline 3 that can conduct electricity and provide air, and constitutes the structure that the heat energy that can utilize intensive compression uniform airflow to produce with electric power fusion ionization comes cutting metal; Wherein electrode mouth and the nozzles at spray nozzle device utilize the sealed fixing of an insulation collar and a protective cap; and the design of the special air passage in this spray nozzle device; make up and maintain suitable airflow clearance accurately and can finish fast; and then the damage that can promote the cutting quality and reduce spare part, it is characterized in that:

This spray gun joint 1 includes an air duct 10, a negative electricity extreme 11 and a positive electricity end 12, and have first external screw thread 111 at extreme 11 front ends of negative electricity, positive electricity end 12 front ends have second external screw thread 121, and are provided with the rear and front end insulating bushing 13 of outstanding positive electricity end 12 respectively in negative electricity between the extreme and positive electricity end;

This spray nozzle device 2 is made up of cooling duct 20, electrode mouth 21, the insulation collar 22, nozzles 23 and protective cap 24 at least; Wherein

Cooling duct 20 continued accesses also extend to forward near electrode mouth 21 interior forward end in the center of spray gun joint 1 tracheae 10 front ends;

Electrode mouth 21 is hollow cap shape, have outside flange 211 and female adapter 212 in its back-end, but this female adapter 212 of mat is screwed together on first external screw thread 111 of the negative electricity extreme 11 in the spray gun joint 1 and the conducting negative electrode, and is provided with several radially pores 213 at its flange 211 places;

The insulation collar 22 is the cylindricality ring-type, and end face 221 and internal diameter 222 can overlap and merge flange 211 the place aheads that are resisted against electrode mouth 21 thereafter, and footpath 222 appropriate locations are provided with several radially pores 224 within it;

Nozzles 23 are hollow cap shape, its internal diameter can form coaxial airspace greater than the external diameter of electrode mouth 21, and the ascending edge 232 that has outside flange 231 and indent in these nozzles 23 bottom surfaces, this ascending edge 232 can be socketed on the front end face 223 of the insulation collar 22;

Protective cap 24 is for being made and be coated with in its outside the cylindric of insulating barrier by a metal material; can be coated on the flange 231 of nozzles 23 and have an inwardly outstanding inner edge 241 at its front end; and have female adapter 242 in its back-end and can be locked on second external screw thread 121 of the positive electricity end 12 in the spray gun joint 1, and make positive electrode conduct to nozzles 23 through it.

See also Fig. 1 again; shown in 3; during according to above-mentioned tectonic association; it screws togather electrode mouth 21 on first external screw thread 111 of the negative electricity that is locked in spray gun joint 1 extreme 11 earlier; the collar 22 that will insulate in regular turn again is sheathed on the electrode mouth 21 with nozzles 23; be placed in after the above-mentioned combining structure at last and screw togather on second external screw thread 121 of the positive electricity end 12 that is locked in the spray gun joint with protective cap 24; and respectively at cooling duct 20; electrode mouth 21; the insulation collar 22; respectively has a gap between nozzles 23 and the protective cap 24; and by the pore of being located on the electrode mouth 21 and the insulation collar 22 213; 224 conductings series connection, as shown in Figure 3.

When using as above-mentioned structure, because electrode mouth 21 and nozzles 23 respectively conducting have under the effect of negative electrode and positive electrode, it is except that producing the effect that merges ionization air, and also can produce arclight in its spout the place ahead, the guiding of the cutting circuit when can be used as cutting, and can finish desired cutting work accurately; Again, between positive electricity end of in this spray gun joint 1, establishing 12 and the negative electricity extreme 11, because of be provided with especially a length respectively the insulating bushing 13 of outstanding positive electricity end 12 rear and front ends make isolated insulation, so this spray gun joint 1 can prevent to produce the arcing phenomenon between positive electricity end 12 and negative electricity extreme 11, and has preferable safe handling.

Moreover, when the spray nozzle device 2 in the utility model is assembled, be to utilize the inner edge 241 of protective cap 24 to collude on the flange 231 that is held in nozzles 23, secondly the ascending edge 232 of mat nozzles 23 is suppressed in the front end face 223 of the insulation collar 22, suppress on the flange 211 of electrode mouth 21 by the insulation collar 22 bottom faces 221 again, fix so can finish whole combination fast; In addition, it utilizes the interval of the insulation collar 22 simultaneously, and the precision of contacted end face and diameter between mat electrode mouth 21, nozzles 23 and the insulation collar 22, and the time can produce the effect of automatic guiding in combination, make to maintain the high gap of concentricity between electrode mouth 21 and the nozzles 23 can allowing airflow smooth pass through, and then reach best assembled state and practicality.

Please cooperate again shown in Figure 3, but air wherein can be concentrated the spout that blows to electrode mouth 21 central authorities and the direction that focused airflow is sprayed along cooling duct 20, to reach preferable cutting quality and cooling effect; Other has the part air to reflux with the gap of electrode mouth 21 is past through cooling duct 20 earlier; and the pore 213 through electrode mouth 21 rear ends flows to the gap that forms between electrode mouth 21, the insulation collar 22 and protective cap 24; again by flow through gap between electrode mouth 21 and the nozzles 23 of the pore 224 of insulation on the collar 22; simultaneously to electrode mouth 21 and nozzles 23 generation cooling effects, the last and concentrated even compression spiral of air that is blown out by the spout of electrode mouth 21 is sprayed by the spout of nozzles 23 in the lump to form even cooling blast.

Other sees also shown in Figure 4, the insulation collar in the utility model 22 its except that rear end face 221, internal diameter 222, front end face 223 need be arranged, also can be designed to taper inclined plane 225 or lead angle at its lateral border; Then can correspondence be designed to bullet at nozzles 23 inner edges, can be convenient to suit work according to this, the concentricity when helping the correcting assembling again.

Claims

1. arc-guide type air electricity slurry cutting gun structure, it is mainly constructed and includes a spray gun joint and one group of spray nozzle device, and the spray nozzle device device is at this spray gun joint front end, the rear end then is connected the pipeline that can conduct electricity and provide air; It is characterized in that:

This spray gun joint includes an air duct, a negative electricity and extremely reaches a positive electricity end, and have first external screw thread at the extreme front end of negative electricity, the positive electricity end front end has second external screw thread, and is provided with the rear and front end insulating bushing of outstanding positive electricity end respectively in negative electricity between the extreme and positive electricity end;

This spray nozzle device is made up of cooling duct, electrode mouth, the insulation collar, nozzles and protective cap at least; Wherein

The cooling duct continued access also extends to forward near electrode mouth interior forward end in the center of spray gun joint tracheae front end;

The electrode mouth is hollow cap shape, has outside flange and female adapter in its back-end, is screwed together on the first extreme external screw thread of negative electricity in the spray gun joint and the conducting negative electrode by this female adapter, and is provided with several radially pores at its flange place;

The insulation collar is the cylindricality ring-type, and end face and internal diameter cover merges the flange the place ahead that is resisted against the electrode mouth thereafter, and the footpath appropriate location is provided with several radially pores within it;

Nozzles are hollow cap shape, and its internal diameter forms coaxial airspace greater than the external diameter of electrode mouth, and has the outside flange and the ascending edge of indent in this nozzles bottom surface, and this ascending edge is socketed on the front end face of the insulation collar;

Protective cap is for being made and be coated with in its outside the cylindric of insulating barrier by a metal material, and its front end have an inwardly outstanding inner edge with the flange that is coated on nozzles on, have female adapter in its back-end and be locked on second external screw thread of the positive electricity end in the spray gun joint, and make positive electrode conduct to nozzles through it;

And between cooling duct, electrode mouth, the insulation collar, nozzles and protective cap, respectively have a gap respectively, and connect with the pore conducting on the insulation collar by being located at the electrode mouth.

2. arc-guide type air electricity slurry cutting gun structure as claimed in claim 1 is characterized in that:

The lateral border of this insulation collar is designed to the inclined plane of taper.