阅读说明：本技术 枪体枪芯连接结构及等离子切割枪 (Gun body and gun core connecting structure and plasma cutting gun ) 是由 周国兴 于 2021-02-22 设计创作，主要内容包括：本发明公开了一种枪体枪芯连接结构及等离子切割枪,它包括枪芯、枪体和绝缘座；枪体包括前枪体和后枪体,前枪体包括铜套座,绝缘座连接在枪芯上；绝缘座还连接在铜套座上；枪芯的上端部连接在后枪体上；其中,枪芯与后枪体之间设有限定枪芯和后枪体之间在周向上的位置的第一周向限定机构；枪芯与绝缘座之间设有限定枪芯和绝缘座之间在周向上的位置的第二周向限定机构；绝缘座和铜套座之间设有限定绝缘座和铜套座之间在周向上的位置的第三周向限定机构；通过第一周向限定机构、第二周向限定机构和第三周向限定机构使得对接孔和对应的配合对接孔在轴向上对位。本发明使得枪体和枪芯能够很好地对位连接,方便各安装孔的轴向对位,有利于等离子切割枪的装配。(The invention discloses a gun body and gun core connecting structure and a plasma cutting gun, which comprise a gun core, a gun body and an insulating seat; the gun body comprises a front gun body and a rear gun body, the front gun body comprises a copper sleeve seat, and an insulating seat is connected to the gun core; the insulating base is also connected to the copper sleeve base; the upper end part of the gun core is connected with the rear gun body; wherein, a first circumferential limiting mechanism which limits the position between the gun core and the rear gun body in the circumferential direction is arranged between the gun core and the rear gun body; a second circumferential limiting mechanism for limiting the position between the gun core and the insulating seat in the circumferential direction is arranged between the gun core and the insulating seat; a third circumferential limiting mechanism for limiting the circumferential position between the insulating seat and the copper sleeve seat is arranged between the insulating seat and the copper sleeve seat; the docking hole and the corresponding mating docking hole are axially aligned by a first circumferential definition mechanism, a second circumferential definition mechanism, and a third circumferential definition mechanism. The invention ensures that the gun body and the gun core can be well connected in an alignment way, facilitates the axial alignment of each mounting hole and is beneficial to the assembly of the plasma cutting gun.)

1. A gun body and gun core connecting structure is characterized by comprising a gun core, a gun body and an insulating seat (1); wherein the content of the first and second substances,

the gun body comprises a front gun body (2) and a rear gun body (3), the front gun body (2) comprises a copper sleeve seat (21), at least one butt hole is formed in the copper sleeve seat (21), and at least one matching butt hole is formed in the rear gun body (3);

the insulating seat (1) is connected to the gun core;

the insulating seat (1) is also connected to the copper sleeve seat (21);

the upper end part of the gun core is connected to the rear gun body (3); wherein the content of the first and second substances,

a first circumferential limiting mechanism for limiting the position between the gun core and the rear gun body (3) in the circumferential direction is arranged between the gun core and the rear gun body (3);

a second circumferential limiting mechanism for limiting the position between the gun core and the insulating base (1) in the circumferential direction is arranged between the gun core and the insulating base (1);

a third circumferential limiting mechanism for limiting the position between the insulating seat (1) and the copper sleeve seat (21) in the circumferential direction is arranged between the insulating seat (1) and the copper sleeve seat (21);

axially aligning the docking aperture and the corresponding mating docking aperture by the first, second and third circumferential limiting mechanisms.

2. The gun body and barrel connection structure according to claim 1,

the gun core comprises a front gun core (4) and a rear gun core (5);

the first circumferential limiting mechanism is arranged between the rear gun core (5) and the rear gun body (3);

the second circumferential limiting mechanism is arranged between the front gun core (4) and the insulating base (1);

the front gun core (4) is connected with the rear gun core (5), and a fourth circumferential limiting mechanism for limiting the position between the front gun core (4) and the rear gun core (5) in the circumferential direction is arranged between the front gun core (4) and the rear gun core (5).

3. The gun body and barrel connection structure according to claim 2,

the fourth circumferential limiting mechanism comprises:

the post hole is formed in the rear gun core (5), and a rotation stopping surface is arranged on the wall surface of the rear gun core (5) forming the post hole;

and the cylinder body (41) is arranged on the foregun core (4) and matched with the cylinder hole, and the outer wall of the cylinder body (41) is provided with a rotation stopping matching surface (41 a) in contact fit with the rotation stopping surface.

4. The gun body and barrel connection structure according to claim 1,

the first circumferential confinement mechanism comprises:

a rear polygonal hole (31) provided in the rear gun body (3);

and the rear polygon prism (51) is arranged on the gun core and matched with the rear polygon hole.

5. The gun body and barrel connection structure according to claim 1,

the second circumferential confinement mechanism comprises:

a core cylinder (42) arranged on the core, wherein the outer wall of the core cylinder (42) is provided with a core rotation-stopping surface (42 a);

the gun core column hole (11) is arranged on the insulating seat (1) and matched with the gun core column body (42), and a gun core rotation stopping matching surface (11 a) in contact fit with the gun core rotation stopping surface (42 a) is arranged on the wall surface of the insulating seat (1) forming the gun core column hole (11).

6. The gun body and barrel connection structure according to claim 1,

the third circumferential confinement mechanism comprises:

the front polygon prism (12) is arranged on the insulating base (1);

and the front polygonal hole (21 a) is arranged on the copper sleeve seat (21) and matched with the front polygonal column (12).

7. The gun body and barrel connection structure according to claim 6,

the front polygon prism (12) is a hexagonal prism, and the front polygon hole (21 a) is a hexagonal hole.

8. A plasma cutting gun comprising a gun body core attachment according to any one of claims 1 to 7.

9. The plasma cutting gun of claim 8,

the butt joint hole and the matching butt joint hole are in axial contraposition matching to be inserted into a water pipe (10) or a cable pipe (20) or an air pipe (30) of the plasma cutting gun.

Technical Field

The invention relates to a gun body and gun core connecting structure and a plasma cutting gun.

Background

At present, a plasma cutting gun is mainly characterized in that an electrode and a nozzle are respectively connected to two poles of a power supply, an electric arc is burnt between the electrode and the nozzle, and after working gas is continuously fed into the plasma cutting gun and passes through an electric arc space, the working gas becomes high-temperature plasma flame flow sprayed out from the nozzle.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a gun body and gun core connecting structure, which enables a gun body and a gun core to be well connected in an aligned mode, facilitates axial alignment of each mounting hole and is beneficial to assembly of a plasma cutting gun.

In order to solve the technical problems, the technical scheme of the invention is as follows: a gun body and gun core connecting structure comprises a gun core, a gun body and an insulating seat; wherein the content of the first and second substances,

the gun body comprises a front gun body and a rear gun body, the front gun body comprises a copper sleeve seat, at least one butt hole is formed in the copper sleeve seat, and at least one matching butt hole is formed in the rear gun body;

the insulating base is connected to the gun core;

the insulating seat is also connected to the copper sleeve seat;

the upper end part of the gun core is connected to the rear gun body; wherein the content of the first and second substances,

a first circumferential limiting mechanism for limiting the position between the gun core and the rear gun body in the circumferential direction is arranged between the gun core and the rear gun body;

a second circumferential limiting mechanism which limits the position between the gun core and the insulating seat in the circumferential direction is arranged between the gun core and the insulating seat;

a third circumferential limiting mechanism for limiting the position between the insulating seat and the copper sleeve seat in the circumferential direction is arranged between the insulating seat and the copper sleeve seat;

axially aligning the docking aperture and the corresponding mating docking aperture by the first, second and third circumferential limiting mechanisms.

Further, the core comprises a front core and a rear core;

the first circumferential limiting mechanism is arranged between the rear gun core and the rear gun body;

the second circumferential limiting mechanism is arranged between the front gun core and the insulating seat;

the front gun core is connected with the rear gun core, and a fourth circumferential limiting mechanism for limiting the circumferential position between the front gun core and the rear gun core is arranged between the front gun core and the rear gun core.

Further, the fourth circumferential limiting mechanism includes:

the post hole is formed in the rear gun core, and a rotation stopping surface is arranged on the wall surface of the rear gun core, which forms the post hole;

and the cylinder is arranged on the fore gun core and matched with the cylinder hole, and the outer wall of the cylinder is provided with a rotation stopping matching surface in contact fit with the rotation stopping surface.

Further, the first circumferential confinement mechanism comprises:

a rear polygonal hole provided on the rear gun body;

and the rear polygon prism is arranged on the gun core and matched with the rear polygon hole.

Further, the second circumferential confinement mechanism comprises:

the gun core cylinder is arranged on the gun core, and a gun core rotation stopping surface is arranged on the outer wall of the gun core cylinder;

and the insulating base is provided with a gun core rotation stopping matching surface in contact fit with the gun core rotation stopping surface on the wall surface forming the gun core column hole.

Further, the third circumferential confinement mechanism comprises:

the front polygon prism is arranged on the insulating seat;

and the front polygon hole is arranged on the copper sleeve seat and matched with the front polygon prism.

Further, the front polygon prism is a hexagonal prism, and the front polygon hole is a hexagonal hole.

The invention also provides a plasma cutting gun which comprises a gun body and a gun core connecting structure.

Furthermore, the butt joint hole and the matching butt joint hole are axially aligned and matched with each other to be inserted into a water pipe or a cable pipe or an air pipe of the plasma cutting gun.

After the technical scheme is adopted, the relative position relation between the rear gun core and the rear gun body in the circumferential direction is limited through the first circumferential limiting mechanism; defining a relative positional relationship between the front core and the rear core in the circumferential direction by a fourth circumferential direction defining mechanism; the relative position relation between the front gun core and the insulating seat in the circumferential direction is defined through a second circumferential direction defining mechanism; the third circumferential limiting mechanism is used for limiting the relative position relation between the insulating seat and the copper sleeve seat in the circumferential direction, so that the butt joint hole in the copper sleeve seat and the corresponding matched butt joint hole in the rear gun body are aligned in the axial direction, and the insertion of a water pipe or a cable pipe or a gas pipe of the plasma cutting gun is facilitated.

Drawings

Fig. 1 is a perspective view of a gun body and a gun core connecting structure of the present invention;

FIG. 2 is a cross-sectional view of the gun body and core attachment of the present invention;

FIG. 3 is an assembled perspective view of the rear gun body of the present invention;

FIG. 4 is an assembled perspective view of the front cavity core, insulator seat and copper sleeve seat of the present invention;

FIG. 5 is a perspective view of the core of the present invention;

FIG. 6 is a perspective view of the front core of the present invention;

fig. 7 is a perspective view of the insulating base of the present invention.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Example one

As shown in fig. 1 to 7, a gun body and gun core connecting structure comprises a gun core, a gun body and an insulating base 1; wherein the content of the first and second substances,

a gun core;

the gun comprises a gun body, wherein the gun body comprises a front gun body 2 and a rear gun body 3, the front gun body 2 comprises a copper sleeve seat 21, at least one butt hole is formed in the copper sleeve seat 21, and at least one matching butt hole is formed in the rear gun body 3;

the insulating base 1 is connected to the gun core;

the insulating base 1 is also connected to the copper sleeve base 21;

the upper end part of the gun core is connected with the rear gun body 3; wherein the content of the first and second substances,

a first circumferential limiting mechanism for limiting the position between the gun core and the rear gun body 3 in the circumferential direction is arranged between the gun core and the rear gun body 3;

a second circumferential limiting mechanism for limiting the position between the gun core and the insulating base 1 in the circumferential direction is arranged between the gun core and the insulating base 1;

a third circumferential limiting mechanism for limiting the circumferential position between the insulating seat 1 and the copper sleeve seat 21 is arranged between the insulating seat 1 and the copper sleeve seat 21;

the docking hole and the corresponding mating docking hole are axially aligned by a first circumferential definition mechanism, a second circumferential definition mechanism, and a third circumferential definition mechanism.

As shown in fig. 5 and 6, the core may be constructed as follows, including a front core 4 and a rear core 5;

the first circumferential limiting mechanism is arranged between the rear gun core 5 and the rear gun body 3;

the second circumferential limiting mechanism is arranged between the front gun core 4 and the insulating base 1;

the front core 4 and the rear core 5 are connected, and a fourth circumferential direction defining mechanism that defines a position between the front core 4 and the rear core 5 in the circumferential direction is provided between the front core 4 and the rear core 5.

As shown in fig. 5 and 6, the fourth circumferential limiting mechanism includes, but is not limited to, the following structures:

a cylindrical hole is arranged on the rear gun core 5, and a rotation stopping surface is arranged on the wall surface of the rear gun core 5 forming the cylindrical hole;

and a cylinder 41 arranged on the fore gun core 4 and matched with the cylinder hole, wherein the outer wall of the cylinder 41 is provided with a rotation stopping matching surface 41a contacted and matched with the rotation stopping surface.

In the present embodiment, one rotation stop surface and one rotation stop engagement surface 41a are provided, but not limited thereto.

As shown in fig. 4 and 5, the first circumferential confinement mechanism includes, but is not limited to, the following structures including:

a rear polygonal hole 31 provided in the rear gun body 3;

a rear polygonal column 51 provided on the core and fitted with the rear polygonal hole.

In the present embodiment, the rear polygonal column 51 is provided specifically on the rear core 5.

As shown in FIGS. 4-7, the second circumferential confinement mechanism includes, but is not limited to, the following structures including:

a core cylinder 42 arranged on the core, wherein the outer wall of the core cylinder 42 is provided with a core rotation-stopping surface 42 a;

the gun core column hole 11 is arranged on the insulating base 1 and matched with the gun core column body 42, and the wall surface of the insulating base 1 forming the gun core column hole 11 is provided with a gun core rotation stopping matching surface 11a which is in contact fit with the gun core rotation stopping surface 42 a.

In the present embodiment, the core cylinder 42 is provided specifically on the front core 4.

As shown in fig. 4 and 7, the third circumferential limiting mechanism includes, but is not limited to, the following structures including:

a front polygonal column 12 provided on the insulating base 1;

a front polygonal hole 21a provided on the copper sleeve holder 21 and engaged with the front polygonal column 12.

In the present embodiment, front polygonal column 12 is a hexagonal column, and front polygonal hole 21a is a hexagonal hole.

In the present embodiment, the post 41, the rear polygonal column 51, and the rear polygonal column 51 may be a post 41 with a hole in the center, a rear polygonal column 51 with a hole in the center, and a rear polygonal column 51 with a hole in the center, respectively.

The relative positional relationship between the rear core 5 and the rear body 3 in the circumferential direction is defined by a first circumferential direction defining mechanism; a relative positional relationship in the circumferential direction between the front core 4 and the rear core 5 is defined by a fourth circumferential direction defining mechanism; the relative position relation between the front gun core 4 and the insulating base 1 in the circumferential direction is defined by a second circumferential direction defining mechanism; the relative position relation between the insulating seat 1 and the copper sleeve seat 21 in the circumferential direction is limited through a third circumferential limiting mechanism, so that the butt joint hole in the copper sleeve seat 21 and the corresponding matched butt joint hole in the rear gun body 3 are axially aligned, and the insertion of the water pipe 10 or the cable pipe 20 or the air pipe 30 of the plasma cutting gun is facilitated.

Example two

A plasma cutting gun, which comprises a gun body and a gun core connecting structure in the first embodiment.

The butt joint hole and the matching butt joint hole are axially aligned and matched to be inserted into a water pipe 10 or a cable pipe 20 or an air pipe 30 of the plasma cutting gun.

The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.