CN211840536U

CN211840536U - Welding gun

Info

Publication number: CN211840536U
Application number: CN201922294138.8U
Authority: CN
Inventors: 王晓峰; 孙云飞; 杨文会; 周国强; 王以兵; 曹广春; 赵亮
Original assignee: China National Petroleum Corp; China Petroleum Pipeline Engineering Corp
Current assignee: China National Petroleum Corp; China Petroleum Pipeline Engineering Corp
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-11-03
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a welding gun belongs to the welding process field. The welding gun (00) comprises: a welding tip (10), a handle (20) and a fastener (30). When the included angle between the welding nozzle (10) and the handle (20) in the welding gun (00) needs to be adjusted, only the fastener (30) needs to be detached from the connecting piece (102), then the included angle between the welding nozzle (10) and the handle (20) is adjusted, after the included angle between the welding nozzle (10) and the handle (20) is adjusted, the fastener (30) and one end, far away from the welding nozzle body (101), of the connecting piece (102) are connected, namely, the adjustment of the included angle between the welding nozzle (10) and the handle (20) in the welding gun (00) is achieved, the connecting copper wire between the welding nozzle (10) and the handle (20) does not need to be bent, the connecting tightness between the welding nozzle (10) and the handle (20) is effectively improved, and the service life of the welding gun (00) is prolonged.

Description

Welding gun

Technical Field

The utility model relates to a welding process field, in particular to welder.

Background

Welding, also known as fusion or melt bonding, is a manufacturing process and technique for joining metals or other thermoplastic materials by means of heat, high temperature or high pressure.

Argon arc welding is a welding technique using argon as a shielding gas, wherein a welding gun is a main component in argon arc welding. The welding gun may include: the welding device comprises a handle, a welding nozzle and a connecting copper wire for connecting the handle and the welding nozzle.

However, when the welding gun is used for welding metals, the included angle between the welding tip and the handle (namely, the included angle between the axis of the welding tip and the axis of the handle) is often required to be adjusted to weld the metals at different positions. At this moment, need realize the regulation of the contained angle between welding nozzle and the handle through the connecting copper wire between welding nozzle and the handle of bending, this connecting copper wire can lose toughness after bending many times to the fastening nature that leads to welding nozzle and handle to be connected is lower, and then leads to welder's life shorter.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a welding gun. The problem that the service life of a welding gun in the prior art is short can be solved, the technical scheme is as follows:

provided is a welding gun including:

a welding tip, said welding tip comprising: the welding tip comprises a welding tip body and a convex connecting piece fixedly connected with the side wall of the welding tip body;

the handle is provided with a connecting through hole at one end, the length direction of the connecting through hole is intersected with the length direction of the handle, and the length of the connecting through hole is smaller than that of the connecting piece;

and the fastener is detachably connected with the connecting piece, and when the connecting through hole is sleeved on the connecting piece, the fastener is connected with one end, far away from the welding tip body, of the connecting piece.

Optionally, the connecting member includes: the connecting rod is detachably connected with the fastening piece, and the first supporting seat is fixedly connected with the connecting rod and is close to the welding nozzle body relative to the connecting piece;

when the connecting through hole is sleeved on the connecting piece, the first air hole is communicated with the connecting through hole.

Optionally, the handle comprises: the handle body, one end with handle body fixed connection's connecting pipe, and with the connecting pipe is kept away from the one end fixed connection's of handle body connector, the connector has connect the through-hole, the connecting pipe have with the second gas pocket of connect the through-hole intercommunication.

Optionally, the connecting member further includes: the first air hole is positioned between the two sealing rings;

when the connecting through hole is sleeved on the connecting piece, the opening of one end, close to the connector, of the second air hole is located between the two sealing rings, and the two sealing rings are abutted to the inner wall of the connecting through hole.

Optionally, the connecting pipe includes: the device comprises a tube body and a first insulating sleeve sleeved outside the tube body;

the connector includes: the connector comprises a connector body fixedly connected with the pipe body and a second insulating sleeve sleeved outside the connector body, wherein the connector body is provided with a connecting through hole;

the connecting piece, the pipe body and the joint body are all made of conducting materials, and when the connecting through hole is sleeved on the connecting piece, the connecting piece is abutted to the inner wall of the connecting through hole.

Optionally, the connecting member further includes: the second supporting seat is positioned between the connecting rod and the first supporting seat and is fixedly connected with the connecting rod and the first supporting seat respectively;

the connection via hole includes: the first sub-connecting hole is matched with the second supporting seat in shape and is positioned in the joint body;

when the connecting through hole is sleeved on the connecting piece, the outer wall of the second supporting seat is attached to the inner wall of the first sub-connecting hole.

Optionally, the shape of the second support seat and the shape of the first sub-connecting hole are both in a truncated cone shape, and the area of the end face of one end of the second support seat, which is far away from the welding tip body, is smaller than the area of the end face of one end of the second support seat, which is close to the welding tip body.

Optionally, the connector further includes: the joint cover plate is fixedly connected with one end of the joint body, which is far away from the welding tip body;

the connecting through-hole further includes: a second sub-connection hole communicating with the first sub-connection hole and located in the joint cover plate;

when the connecting through hole is sleeved on the connecting piece, the connecting rod penetrates through the second sub-connecting hole and is located outside the connecting through hole.

Optionally, the fastener comprises: the connecting rod is detachably connected with the connecting rod, the connecting rod is sleeved with the connecting rod, the end face of one end of the connecting rod close to the joint cover plate is protruded out of the connecting rod, and the connecting rod is sleeved with the connecting rod; wherein, after the fastener body is connected with the connecting rod, the fastener body is abutted against the joint cover plate.

Optionally, the outer wall of the connecting rod has an external thread, the fastener has a threaded hole matched with the external thread, and the fastener is in threaded connection with the connecting rod.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is:

this welder includes: a welding tip, a handle, and a fastener. When the contained angle between nozzle and the handle in welder needs to be adjusted, because connecting piece and fastener are for dismantling and being connected, therefore, only need to dismantle the fastener from the connecting piece, then adjust the contained angle between nozzle and the handle (also be, contained angle between the axis of nozzle and the axis of handle), after the contained angle between nozzle and handle is adjusted and is accomplished, keep away from the one end of nozzle body with fastener and connecting piece again and be connected, the regulation of the contained angle between nozzle and the handle in welder has been realized promptly, need not to bend the connecting copper wire between nozzle and the handle, the effectual fastening nature of connecting nozzle and handle has been improved, and welder's life has been prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a welding gun according to an embodiment of the present invention;

fig. 2 is a schematic partial structural diagram of a welding gun according to an embodiment of the present invention;

fig. 3 is a partial schematic structural view of another welding gun according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a handle provided by an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a connecting member according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a connector and a connecting through hole according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

An embodiment of the utility model provides a welding gun, this welding gun is used for treating welded metal and welds. Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a welding gun according to an embodiment of the present invention, and fig. 2 is a schematic partial structural diagram of a welding gun according to an embodiment of the present invention. The welding torch 00 may include: a welding tip 10, a handle 20 and a fastener 30.

The welding tip 10 may include: a nozzle body 101 and a raised connecting piece 102 fixedly connected to a side wall of the nozzle body 101.

One end of the handle 20 has a connecting through hole 201, the length direction of the connecting through hole 201 intersects with the length direction of the handle 20, and the length of the connecting through hole 201 is smaller than that of the connecting member 102.

The fastener 30 is detachably connected with the connecting piece 102, wherein when the connecting through hole 201 is sleeved on the connecting piece 102, the fastener 30 is connected with one end of the connecting piece 102 far away from the welding tip body 101.

When it is desired to install the welding gun shown in fig. 1, first, the operator can put the connecting member 102 in the welding tip 10 into the connecting through hole 201 of the handle 30; the operator can then attach the fastener 30 to the end of the connector 102 remote from the nozzle body 101, i.e., complete the installation of the welding gun 00.

To sum up, the embodiment of the present invention provides a welding gun, include: a welding tip, a handle, and a fastener. When the contained angle between nozzle and the handle in welder needs to be adjusted, because connecting piece and fastener are for dismantling and being connected, therefore, only need to dismantle the fastener from the connecting piece, then adjust the contained angle between nozzle and the handle (also be, contained angle between the axis of nozzle and the axis of handle), after the contained angle between nozzle and handle is adjusted and is accomplished, keep away from the one end of nozzle body with fastener and connecting piece again and be connected, the regulation of the contained angle between nozzle and the handle in welder has been realized promptly, need not to bend the connecting copper wire between nozzle and the handle, the effectual fastening nature of connecting nozzle and handle has been improved, and welder's life has been prolonged.

In the embodiment of the present invention, referring to fig. 3, fig. 3 is a schematic partial structure diagram of another welding gun according to the embodiment of the present invention. The connector 102 may include: a connecting rod 102a detachably connected to the fastening member 30, and a first supporting seat 102b fixedly connected to the connecting rod 102a, wherein the first supporting seat 102b is close to the welding tip body 101 relative to the connecting member 102, the first supporting seat 102b has a first air hole 102b1, and the first air hole 102b1 is communicated with the welding tip body 101. When the connecting through hole 201 is sleeved on the connecting piece 102, the first air hole 102b1 is communicated with the connecting through hole 201. Illustratively, the number of the first air holes 102b1 is plural, the plural first air holes 102b1 are uniformly distributed on the side wall of the first supporting seat 102b, and when the connecting through hole 201 is sleeved on the connecting piece 102, the plural first air holes 102b1 are all communicated with the connecting through hole 201, at this time, gas (for example, argon gas) can be transmitted from the connecting through hole 201 to the inside of the nozzle body 101 through the plural first air holes 102b 1.

Optionally, referring to fig. 4, fig. 4 is a cross-sectional view of a handle according to an embodiment of the present invention. The handle 20 may include: the handle comprises a handle body 202, a connecting pipe 203 with one end fixedly connected with the handle body 202, and a connecting head 204 fixedly connected with one end of the connecting pipe 203 far away from the handle body 202, wherein the connecting head 204 is provided with a connecting through hole 201, and the connecting pipe 203 is provided with a second air hole 203a communicated with the connecting through hole 201. Illustratively, the handle body 202 is made of an insulating material, and the handle body 202 has a first through hole 202a, and when the welding gun 00 is used for welding, a gas pipe 202b communicated with the second gas hole 203a and a cable connected with the connecting pipe 203 can be arranged in the first through hole 202 a. At this time, the cable and the gas pipe 202b can enter the handle body 202 through the first through hole 202a in the handle body 202 and be connected with the connection pipe 203. The gas pipe 202b and the connecting pipe 203 have the same diameter, and the connecting port is sealed after the connection, at this time, gas can enter the welding tip body 101 after passing through the gas pipe 202b, the second air hole 203a, the connecting through hole 201 and the first air hole 102b1 in sequence; the cable may be connected to the wall of the connection pipe 203, thereby achieving the conduction of the current.

It should be noted that the shape of the connection tube 203 may be a curved tube, which may make the welding tip 10 and the handle body 202 in the same plane, so that it is easier for the operator to operate the welding gun 00.

In the embodiment of the present invention, referring to fig. 5, fig. 5 is a schematic structural diagram of a connecting member provided in the embodiment of the present invention. The connector 102 may further include: two sealing rings 102c fixedly connected to the side wall of the first supporting seat 102b, and a first air hole 102b1 is located between the two sealing rings 102 c. When the connecting through hole 201 is sleeved on the connecting piece 102, the opening of the second air hole 203a near the end of the connecting head 204 is located between the two sealing rings 102c, and the two sealing rings 102c are both abutted against the inner wall of the connecting through hole 201. Illustratively, the side wall of the first supporting seat 102b may further be provided with two grooves 102b2 matching with the shapes of the two sealing rings 102c, and the two grooves 102b2 are used for clamping the two sealing rings 102c, at this time, when the connecting through hole 201 is sleeved on the connecting piece 102, the two sealing rings 102c may ensure that all the gas flowing out from the second gas hole 203a flows into the first gas hole 102b1, and prevent the gas from flowing out from the gap between the connecting through hole 201 and the connecting piece 102.

The first support base 102b may further include: and a third air hole (not shown in fig. 5) having the same axis as the connecting rod 102a and having one end communicating with the first air hole 102b1 and the other end communicating with the tip body 101, wherein the air flows into the first air hole 102b1 from the second air hole 203a of the connecting tube 203 and then flows into the tip body 101 through the third air hole.

Alternatively, referring to fig. 4, the connection pipe 203 may include: a tube 203b, and a first insulating sleeve 203c sleeved outside the tube 203 b. The connection head 204 may include: a joint body 204a fixedly connected with the pipe body 203b, and a second insulating sleeve 204b sleeved outside the joint body 204a, wherein the joint body 204a is provided with a connecting through hole 201. Wherein, the connector 102, the tube 203b and the connector body 204a are made of conductive material (e.g. copper), and when the connecting through hole 201 is sleeved on the connector 102, the connector 102 abuts against the inner wall of the connecting through hole 201, so that the handle 20 is electrically connected with the welding tip 10.

It should be noted that the end of the pipe 203b away from the joint main body 204a needs to be connected to a cable, and during welding, the pipe 203b can be used as a conductive medium for conducting electricity and also as a gas transmission pipeline for transmitting gas.

For example, referring to fig. 5 and fig. 6, fig. 6 is a schematic structural diagram of a connector and a connecting through hole provided in an embodiment of the present invention. The connector 102 may further include: a second supporting seat 102d located between the connecting rod 102a and the first supporting seat 102b, wherein the second supporting seat 102d is fixedly connected to the connecting rod 102a and the first supporting seat 102b, respectively. The connection via 201 may include: the first sub-connecting hole 201a is matched with the shape of the second support seat 102d and is positioned in the joint body 204 a. When the connecting through hole 201 is sleeved on the connecting member 102, the outer wall of the first supporting seat 102b is attached to the inner wall of the first sub-connecting hole 201 a. And the outer wall of the second support seat 102d is attached to the inner wall of the first sub-connection hole 201 a. At this time, the handle 20 and the welding tip 10 can be electrically connected by the outer wall of the first support base 102b being attached to the inner wall of the first sub-connection hole 201a, and the outer wall of the second support base 102d being attached to the inner wall of the first sub-connection hole 201 a.

Alternatively, referring to fig. 3, 5 and 6, the shape of the first supporting seat 102b and the shape of the first sub-connecting hole 201a are both truncated cone shapes, and the area of the end surface of the first supporting seat 102b at the end far away from the welding tip body 101 is smaller than the area of the end surface at the end close to the welding tip body 101. As an example, the second support seat 102d is also shaped like a truncated cone, and the area of the end surface of the second support seat 102d away from the end of the tip body 101 is smaller than the area of the end surface close to the end of the tip body 101. At this time, when the first supporting seat 102b and the second supporting seat 102d move into the first sub-connecting hole 201a, the truncated cone-shaped structure can make the first supporting seat 102b and the second supporting seat 102d fit with the first sub-connecting hole 201a more tightly.

In the embodiment of the present invention, referring to fig. 6, the connector 204 may further include: and a joint cover plate 204c fixedly connected with one end of the joint body 204a far away from the welding tip body 101. The connection via 201 may further include: and a second sub-connection hole 201b communicating with the first sub-connection hole 201a and located in the joint cover plate 204 c. When the connecting through hole 201 is sleeved on the connecting piece 102, the connecting rod 102a passes through the second sub-connecting hole 201b and is located outside the connecting through hole 201. And the joint cover plate 204c can further ensure that gas does not leak from the connecting through hole 201. As an example, the second sub-connection hole 201b may have a circular side shape.

Alternatively, referring to fig. 3, the fastener 30 may include: the connecting rod 102a is detachably connected with a fastener body 301, and a hand wheel 302 is sleeved outside the fastener body 301, and the end face of one end of the fastener body 301 close to the joint cover plate 204c protrudes out of the hand wheel 302. After the fastener body 301 is connected to the connecting rod 102a, the fastener body 301 abuts against the joint cover 204 c. For example, the material of the hand wheel 302 may be an insulating material, the material of the fastener body 301 may be a conductive material, the fastener body 301 and the connection rod 102a are detachably connected, when the fastener body 301 is connected to the connection rod 102a, because the end surface of the fastener body 301 close to one end of the joint cover plate 204c protrudes out of the hand wheel 302, and the fastener body 301 abuts against the joint cover plate 204c, current may flow through the joint cover plate 204c through the fastener body 301, then flow to the connection rod 102a, and then flow to the inside of the welding nozzle body 101, thereby realizing conduction of current in the welding gun 00.

At this time, referring to fig. 4, the connection member 102 may further include: the rubber sleeve is used for being sleeved on the surfaces of the first supporting seat 102b and the second supporting seat 102d, when the connecting through hole 201 is sleeved on the connecting piece 102, the rubber sleeve can improve the tightness of the fit between the outer walls of the first supporting seat 102b and the second supporting seat 102d and the inner wall of the first sub-connecting hole 201a, meanwhile, the rubber sleeve can also increase the friction force of the fit between the outer walls of the first supporting seat 102b and the second supporting seat 102d and the inner wall of the first sub-connecting hole 201a, the first supporting seat 102b and the second supporting seat 102d are prevented from rotating in the first sub-connecting hole 201a, and further the stability of the welding gun 00 during welding is improved.

Note that the boundary shape of the longitudinal section of the fastener body 301 is any shape other than a circle (for example, a regular pentagon), and the longitudinal section of the fastener body 301 is perpendicular to the axis of the connecting through-hole 201. The fastener body 301 with a regular pentagon longitudinal section is sleeved with the hand wheel 302 and cannot rotate relatively. Meanwhile, the shape of the boundary of the longitudinal section of the hand wheel 302 is any shape other than a circle (for example, a regular octagon), and at this time, the operator can save more labor when rotating the hand wheel 302.

In the embodiment of the present invention, the outer wall of the connecting rod 102a has an external thread, the fastening member 30 has a threaded hole matched with the external thread, and the fastening member 30 is connected with the connecting rod 102a by the thread. That is, the fastener body 301 has a threaded hole that mates with the external thread, and the fastener body 301 is threadedly coupled to the connecting rod 102 a.

When the welding gun shown in fig. 3 needs to be installed, firstly, an operator can put the connecting piece 102 in the welding tip 10 into the connecting through hole 201 of the handle 30, so that the outer walls of the first supporting seat 102b and the second supporting seat 102c are attached to the inner wall of the first sub-connecting hole 201 a; the operator may then turn the fastener 30 so that the fastener 30 is threadably connected to the connecting rod 102a in the connector 102; finally, the screw thread is tightened, and the installation of the welding gun 00 is completed.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. A welding gun, comprising:

a welding tip (10), said welding tip (10) comprising: the welding tip comprises a welding tip body (101) and a convex connecting piece (102) fixedly connected with the side wall of the welding tip body (101);

the handle (20), one end of the handle (20) is provided with a connecting through hole (201), the length direction of the connecting through hole (201) is intersected with the length direction of the handle (20), and the length of the connecting through hole (201) is smaller than that of the connecting piece (102);

the fastener (30) is detachably connected with the connecting piece (102), and when the connecting through hole (201) is sleeved on the connecting piece (102), the fastener (30) is connected with one end, far away from the welding nozzle body (101), of the connecting piece (102).

2. The welding gun according to claim 1,

the connector (102) comprises: a connecting rod (102a) detachably connected with the fastener (30), and a first supporting seat (102b) fixedly connected with the connecting rod (102a), wherein the first supporting seat (102b) is close to the welding nozzle body (101) relative to the connecting piece (102), the first supporting seat (102b) is provided with a first air hole (102b1), and the first air hole (102b1) is communicated with the welding nozzle body (101);

when the connecting through hole (201) is sleeved on the connecting piece (102), the first air hole (102b1) is communicated with the connecting through hole (201).

3. The welding gun according to claim 2,

the handle (20) comprises: handle body (202), one end with handle body (202) fixed connection's connecting pipe (203), and with connecting pipe (203) are kept away from handle body (202)'s one end fixed connection's connector (204), connector (204) have connect the through-hole (201), connecting pipe (203) have with second gas pocket (203a) of connect the through-hole (201) intercommunication.

4. The welding gun according to claim 3,

the connector (102) further comprises: two sealing rings (102c) fixedly connected with the side wall of the first supporting seat (102b), wherein the first air hole (102b1) is positioned between the two sealing rings (102 c);

when the connecting through hole (201) is sleeved on the connecting piece (102), the opening of one end, close to the connecting head (204), of the second air hole (203a) is located between the two sealing rings (102c), and the two sealing rings (102c) are abutted to the inner wall of the connecting through hole (201).

5. The welding gun according to claim 3,

the connection pipe (203) includes: the device comprises a tube body (203b) and a first insulating sleeve (203c) sleeved outside the tube body (203 b);

the connector (204) comprises: the joint body (204a) is fixedly connected with the pipe body (203b), and the second insulating sleeve (204b) is sleeved outside the joint body (204a), wherein the joint body (204a) is provided with the connecting through hole (201);

the connecting piece (102), the pipe body (203b) and the joint body (204a) are all made of conductive materials, and when the connecting through hole (201) is sleeved on the connecting piece (102), the connecting piece (102) is abutted to the inner wall of the connecting through hole (201).

6. The welding gun according to claim 5,

the connector (102) further comprises: a second support seat (102d) located between the connecting rod (102a) and the first support seat (102b), the second support seat (102d) being fixedly connected with the connecting rod (102a) and the first support seat (102b), respectively;

the connecting via (201) comprises: a first sub-connection hole (201a) which is matched with the shape of the second support seat (102d) and is positioned in the joint body (204 a);

when the connecting through hole (201) is sleeved on the connecting piece (102), the outer wall of the second supporting seat (102d) is attached to the inner wall of the first sub-connecting hole (201 a).

7. The welding gun according to claim 6,

the shape of the second supporting seat (102d) and the shape of the first sub-connecting hole (201a) are both in a round table shape, and the area of the end face of one end, far away from the welding tip body (101), of the second supporting seat (102d) is smaller than the area of the end face of one end, close to the welding tip body (101).

8. The welding gun according to claim 6,

the connector (204) further comprises: the joint cover plate (204c) is fixedly connected with one end, far away from the welding tip body (101), of the joint body (204 a);

the connecting via (201) further comprises: a second sub-connection hole (201b) communicating with the first sub-connection hole (201a) and located in the joint cover plate (204 c);

when the connecting through hole (201) is sleeved on the connecting piece (102), the connecting rod (102a) penetrates through the second sub-connecting hole (201b) and is located outside the connecting through hole (201).

9. The welding gun according to claim 8,

the fastener (30) comprises: the connecting rod (102a) is detachably connected with a fastener body (301), and the hand wheel (302) is sleeved outside the fastener body (301), and the end face of one end, close to the joint cover plate (204c), of the fastener body (301) protrudes out of the hand wheel (302);

wherein the fastener body (301) abuts the joint cover plate (204c) after the fastener body (301) is connected to the connecting rod (102 a).

10. The welding gun according to any one of claims 2 to 9,

the outer wall of the connecting rod (102a) is provided with an external thread, the fastener (30) is provided with a threaded hole matched with the external thread, and the fastener (30) is in threaded connection with the connecting rod (102 a).