CN216607583U - Plasma welding gun with replaceable positioning sleeve structure - Google Patents

Abstract

The utility model discloses a plasma welding gun with a replaceable positioning sleeve structure, which is characterized by comprising a positioning sleeve and a water-proof sleeve, wherein the lower end of the positioning sleeve extends into an inner cavity of the water-proof sleeve and is matched and limited with the inner wall of the water-proof sleeve through a positioning block, and an upper port of the water-proof sleeve is matched and connected with the outer wall of the positioning sleeve through a connecting component fixedly arranged on an upper port of the water-proof sleeve and the outer wall of the positioning sleeve. The utility model aims to provide a plasma welding gun with a replaceable positioning sleeve structure, wherein after a welding gun positioning sleeve is damaged, the whole welding gun is not scrapped, but the positioning sleeve is pulled out from a waterproof sleeve to replace or repair the positioning sleeve, and the use of the whole welding gun can be recovered after the positioning sleeve is repaired or a new positioning sleeve is reinstalled. The repairability of the welding gun is effectively improved, the welding gun is convenient to maintain, the maintenance cost of equipment is greatly reduced, and the production cost is reduced.

Description

Plasma welding gun with replaceable positioning sleeve structure

Technical Field

The application relates to the technical field of rare nonferrous metal smelting equipment, and relates to a plasma welding gun with a positioning sleeve of a replaceable structure.

Background

With the development of alloys such as titanium, zirconium and the like in the fields of chemical industry, aviation, nuclear power and the like, the vacuum consumable arc melting technology has been greatly developed, after a large-scale vacuum obtaining device appears, the vacuum consumable arc remelting technology with modern industrial scale is rapidly developed, and the melting technology is beginning to be widely used for industrial production of high-temperature alloys and alloy steels with special purposes in about sixty years. The domestic smelting of titanium, zirconium and their alloys mainly adopts a vacuum consumable melting technology, and the titanium sponge/zirconium are processed according to a certain process and are smelted into ingots so as to achieve the purposes of slag removal and alloy homogenization. Before smelting, the procedures of titanium sponge/zirconium sponge gathering, material distribution, electrode block pressing, consumable electrode welding, smelting and the like are carried out. After the pressing of the electrode blocks is completed, the independent electrode blocks are assembled by a special fixture, and then welding seams are performed to connect the electrode blocks to form a consumable electrode, and the consumable electrode enters a vacuum consumable electrode electric arc furnace for smelting. The domestic common vacuum welding equipment is a vacuum plasma welding box, and a single cast ingot smelted by domestic large-scale rare metal smelting enterprises reaches 10 tons at present, so that the vacuum plasma welding box is required to work efficiently and stably for a long time.

The longer the time of the single-furnace work of the welding gun of the vacuum plasma welding box is, the more easily the accessory nozzle and the bullet start welding in the using process, so that the welding effect is influenced, the stability of ion arc flame can be caused by the welding beading, or the welding gun does not start welding, the bullet can be punctured in serious conditions, the positioning sleeve of the nozzle or the welding gun can be punctured, if the positioning sleeve of the welding gun is punctured, or the sealing failure is caused by deformation, because the space of the part is limited, the part is generally difficult to repair, the whole welding gun can be scrapped, and the using cost of the equipment is greatly increased. Statistically, more than 90% of the welds are rejected due to the locating sleeve being punctured or deformed, resulting in a failed seal.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will be solved lies in overcoming current plasma welding torch position sleeve and can not change, is punctured the damage back at the position sleeve for whole welder is scrapped, greatly increased equipment use cost's problem. Provides a plasma welding gun with a positioning sleeve which can be conveniently replaced.

The application provides a plasma welding rifle of removable structure of position sleeve, a serial communication port, including position sleeve and water proof cover, the position sleeve lower extreme stretches into the water proof cover inner chamber and spacing through locating piece and the cooperation of water proof cover inner wall, the water proof is sheathe in the port and is connected with the coupling assembling cooperation of position sleeve outer wall on port and position sleeve outer wall through fixed setting at the water proof.

Further, coupling assembling is including setting up the water proof cover flange of putting the port on the water proof cover to and set up the position sleeve flange on the position sleeve outer wall.

Furthermore, through holes are formed in the water separating sleeve flange and the positioning sleeve flange, and the water separating sleeve flange and the positioning sleeve flange are connected in a matched mode through fixing bolts arranged in the through holes.

Furthermore, an annular groove is formed in the joint surface of the water separation sleeve flange or the positioning sleeve flange, and a sealing ring is arranged in the annular groove.

Further, the position sleeve flange includes the boss of downwardly extending, the boss cooperates with water proof inner wall of the cover.

Further, the locating sleeve and the waterproof sleeve are concentrically arranged.

Furthermore, the sealing ring is an O-shaped sealing ring, and the O-shaped sealing ring is made of nitrile rubber.

Further, the water-proof jacket also comprises an outer water jacket arranged on the outer side of the water-proof jacket.

Furthermore, the outer wall of the water-resisting sleeve is matched with the inner wall of the outer water jacket for limiting through a positioning block, and the upper end opening of the outer water jacket is fixedly connected with the outer wall of the water-resisting sleeve.

Further, the outer water jacket and the water-resisting jacket are concentrically arranged.

The technical scheme of the utility model has the following beneficial technical effects:

when the welding gun positioning sleeve is damaged, the whole welding gun is not required to be scrapped, but the positioning sleeve is pulled out from the waterproof sleeve, the positioning sleeve is replaced or repaired, and the repaired positioning sleeve or a new positioning sleeve is reinstalled to recover the use of the whole welding gun.

Drawings

FIG. 1 is a schematic view of a prior art plasma torch configuration;

FIG. 2 is a schematic view of a plasma torch with a replaceable spud sleeve configuration according to the present application;

FIG. 3 is a partial schematic view of a spud flange and a riser flange according to an embodiment of the present application;

reference numerals:

wherein 1, positioning sleeve; 2. a water-separating sleeve; 3. an outer water jacket; 4. positioning blocks; 5. an O-shaped sealing ring; 6. A locating sleeve flange; 7. a water-separating sleeve flange; 8. an annular groove; 9. a through hole; 10. and (4) a boss.

Detailed Description

In the drawings a schematic view of a layer structure according to an embodiment of the utility model is shown. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity. The shapes of the various regions, layers and their relative sizes, positional relationships are shown in the drawings as examples only, and in practice deviations due to manufacturing tolerances or technical limitations are possible, and a person skilled in the art may additionally design regions/layers with different shapes, sizes, relative positions according to the actual needs.

It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1, which is a schematic view of a plasma welding gun in the prior art, a positioning sleeve 1 is arranged in an inner cavity of a water-resisting sleeve 2, the bottom end of the positioning sleeve 1 and the inner wall of the water-resisting sleeve 2 are fixed in a limiting manner through a positioning block 4, and the upper portion of the positioning sleeve is connected with the water-resisting sleeve 2 in a welding manner. The water-proof sleeve 2 is arranged in the inner cavity of the outer water jacket 3, and the lower part of the water-proof sleeve is in limit fit with the outer water jacket 3 through a positioning block. As shown in fig. 1, when the locating sleeve of the welding gun is punctured or deformed to cause sealing failure, the space of the locating sleeve is limited, so that the locating sleeve is generally difficult to repair, the whole welding gun is scrapped, and the use cost of the equipment is greatly increased.

For solving above-mentioned technical problem, the application provides a plasma welding torch of removable structure of position sleeve, as shown in fig. 2, including position sleeve 1 and water proof cover 2, 1 lower extreme of position sleeve stretches into water proof cover 2 inner chambers and through locating piece 4 with water proof cover 2 inner wall cooperation spacing, 2 last ports of water proof cover are connected with the connecting assembly cooperation of 1 outer wall of position sleeve through fixed setting on water proof cover 2 ports and position sleeve 1 outer wall.

This application optimizes welded connection's among the prior art part, chooses for use detachable connecting piece to realize connecting. In one embodiment, a flange connection is adopted, and specifically, the connection assembly comprises a water-stop sleeve flange 7 arranged at an upper port of the water-stop sleeve 2, and a positioning sleeve flange 6 arranged on the outer wall of the positioning sleeve 1.

In order to connect the water-resisting sleeve flange 7 and the positioning sleeve flange 6, through holes are formed in the water-resisting sleeve flange 7 and the positioning sleeve flange 6, and the water-resisting sleeve flange 6 and the positioning sleeve flange 7 are connected in a matched mode through fixing bolts arranged in the through holes.

Because the working temperature of the plasma welding gun is high, cooling water needs to be introduced into the water-proof sleeve for cooling, and therefore sealing between the water-proof sleeve and the positioning sleeve needs to be achieved. Considering that a sealing ring is arranged at the joint of the water-resisting sleeve flange 7 and the positioning sleeve flange 6, a groove for accommodating the sealing ring is required to be arranged. An annular groove 8 is formed in the joint surface of the water separation sleeve flange or the positioning sleeve flange, and a sealing ring is arranged in the annular groove 8.

Further, the locating sleeve flange comprises a boss 10 extending downwards, and the boss 10 is matched with the inner wall of the waterproof sleeve 2. The positioning between the positioning sleeve 1 and the water-resisting sleeve 2 is realized.

In order to improve the cooling effect, the locating sleeve 1 and the water stop sleeve 2 are concentrically arranged. Therefore, the distance between each point on the peripheral surface of the outer wall of the positioning sleeve 1 and the inner wall of the water separating sleeve 2 is equal, and cooling water can uniformly flow through the channel between the two points, thereby achieving the uniform cooling effect.

Further, the sealing ring is an O-shaped sealing ring 5, and the O-shaped sealing ring 5 is made of nitrile rubber. In order to achieve a better sealing effect, the O-shaped sealing ring 5 is adopted, the cross section of the O-shaped sealing ring is O-shaped, when the waterproof sleeve flange 7 and the locating sleeve flange 6 are pressed against each other, the O-shaped sealing ring 5 is extruded, and because the cross section is circular, a gap is not easy to be reserved on a contact surface, and the sealing effect is good. O type sealing washer 5 is the butadiene acrylonitrile rubber material, and this kind of material elasticity is better, more durable.

And an outer water jacket 3 arranged outside the water separation jacket 2 is also arranged outside the water separation jacket 2.

The outer wall of the water-proof sleeve 2 is matched and limited with the inner wall of the outer water sleeve 3 through a positioning block 4, and the upper end opening of the outer water sleeve 3 is fixedly connected with the outer wall of the water-proof sleeve 2. Welding or the like may be used here.

In order to make the cooling effect better, the outer water jacket 3 is arranged concentrically with the water partition jacket 2. Therefore, the distance between each point on the peripheral surface of the outer wall of the water separating sleeve 2 and the inner wall of the water separating sleeve 2 is equal, and cooling water can uniformly flow through the channel between the two points, thereby achieving the uniform cooling effect.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (10)

1. The utility model provides a plasma welding torch of removable structure of position sleeve, its characterized in that includes position sleeve and water proof cover, the position sleeve lower extreme is located water proof cover inner chamber and is spacing through locating piece and the cooperation of water proof cover inner wall, the water proof is sheathe in the port and is connected with the position sleeve outer wall through the fixed coupling assembling that sets up on water proof cover upper port and position sleeve outer wall cooperatees.

2. The structure-replaceable plasma torch of claim 1 wherein the connecting assembly includes a water-stop sleeve flange disposed at an upper port of the water-stop sleeve, and a locating sleeve flange disposed on an outer wall of the locating sleeve.

3. The plasma welding gun with the replaceable positioning sleeve structure as claimed in claim 2, wherein the water separating sleeve flange and the positioning sleeve flange are provided with through holes, and the water separating sleeve flange and the positioning sleeve flange are connected in a matched mode through fixing bolts arranged in the through holes.

4. The plasma welding gun with the replaceable locating sleeve structure as claimed in claim 3, wherein an annular groove is formed on the joint surface of the water separating sleeve flange or the locating sleeve flange, and a sealing ring is arranged in the annular groove.

5. The replaceable structured plasma torch according to claim 4 wherein said collar flange includes a downwardly extending boss that engages an inner wall of the water-barrier sleeve.

6. The plasma torch of claim 1 wherein the spud and the water stop sleeve are concentrically arranged.

7. The plasma welding gun with replaceable structure of the positioning sleeve as claimed in claim 4, wherein the sealing ring is an O-shaped sealing ring, and the O-shaped sealing ring is made of nitrile rubber.

8. The plasma torch of claim 1 further comprising an outer water jacket disposed outside the water-stop jacket.

9. The plasma welding gun with replaceable positioning sleeve as claimed in claim 8, wherein the outer wall of the water-stop sleeve is limited by a positioning block matching with the inner wall of the outer water jacket, and the upper end opening of the outer water jacket is fixedly connected with the outer wall of the water-stop sleeve.

10. The replaceable spud plasma torch of claim 9 wherein the outer water jacket is concentric with the water-stop jacket.

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