CN217859261U

CN217859261U - Conductive nozzle

Info

Publication number: CN217859261U
Application number: CN202222093630.0U
Authority: CN
Inventors: 孙晓松
Original assignee: Zhengzhou Apollo Robot Accessories Co ltd
Current assignee: Zhengzhou Apollo Robot Accessories Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-22
Anticipated expiration: 2032-08-09

Abstract

The utility model relates to a contact tube, which comprises a first semi-cylinder, a second semi-cylinder and a sleeve; the first semi-cylinder is provided with a first semi-welding wire groove, and the second semi-cylinder is provided with a second semi-welding wire groove; the first half welding wire groove axially penetrates through the first half cylinder, and the second half welding wire groove axially penetrates through the second half cylinder; the first semi-cylinder and the second semi-cylinder are mutually matched, and the first semi-welding wire groove and the second semi-welding wire groove are mutually matched; the first semi-cylinder is sleeved in the sleeve after being matched with the second semi-cylinder. This kind of contact tip of structure need not to carry on traditional drilling process again in the manufacturing process for the processing of contact tip is simpler, also can guarantee the smooth degree of first half welding wire groove and the half welding wire inslot portion of second simultaneously, avoids inside too roughly to influence the smooth line of welding wire.

Description

Conductive nozzle

Technical Field

The utility model relates to a welder technical field, concretely relates to contact tube.

Background

The welding gun is a welding tool, in gas metal arc welding, the contact tip at the front end of the welding gun is the quick-wear part which consumes the fastest, the basic structure is usually a copper material with conductivity and a through hole, in the welding process, a welding wire passes through the inner hole of the contact tip and is conveyed to a workpiece, and a welding current passes through the anode of the welding machine, the gun body of the welding gun, the seat of the contact tip, the welding wire, the workpiece and the cathode of the welding machine to form a conductive loop. The current commercially available contact tip designs are typically formed by turning and milling on a cylindrical design, which makes it difficult to machine the inner bore because the contact tip is typically 30-50mm in length and the inner bore in the contact tip is only 1.0-1.8mm in diameter. The existing processing modes are generally two, one mode is processing by adopting a drilling mode, and because the inner diameter is smaller and the depth is larger, the damage of a drill bit is very easy to cause during drilling, and the requirement for large-batch high-efficiency production is difficult to meet; the other method is to adopt a pipe with a larger inner hole, gradually draw the pipe to gradually reduce the inner hole to the required aperture, the inner wall of the inner hole of the contact tube formed by the method is not smooth enough, the normal passing of the welding wire can be obstructed in the using process, and the using effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a contact tube to solve the difficult problem of processing of traditional contact tube.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a contact tube comprises a first semi-cylinder, a second semi-cylinder and a sleeve;

a first half welding wire groove is formed in the first half cylinder, and a second half welding wire groove is formed in the second half cylinder;

the first half welding wire groove axially penetrates through the first semi-cylinder, and the second half welding wire groove axially penetrates through the second semi-cylinder;

the first semi-cylinder and the second semi-cylinder are mutually matched, and the first semi-welding wire groove and the second semi-welding wire groove are mutually matched;

the first semi-cylinder is sleeved in the sleeve after being matched with the second semi-cylinder

Furthermore, the first half welding wire groove and the second half welding wire groove are correspondingly provided with two.

Further, the first half wire groove and the second half wire groove are both semicircular grooves.

Further, the first half wire groove and the second half wire groove are both elliptical grooves.

Further, the first half wire groove and the second half wire groove are matched to form a wire channel; the inlet end of the welding wire channel is provided with a taper guide hole for the welding wire to enter conveniently.

Furthermore, a wear-resistant alloy block is embedded at the outlet end of the welding wire channel.

Furthermore, the first semi-cylinder and the second semi-cylinder are matched to form a conductor, and a key groove is formed in the outer edge of the inlet end of the conductor.

Further, the outer edge of the outlet end of the sleeve is arranged in a taper mode.

Furthermore, a clamping step convenient for limiting and clamping is arranged on the sleeve; the clamping step and the sleeve are integrally formed.

The utility model has the advantages that:

the utility model discloses in, the contact tip no longer is like the contact tip of traditional integrative setting, but set up the contact tip into the structure of two semicylinders, first semicylinder and second semicylinder promptly, the welding wire passageway sets up to first semicylinder groove and second semicylinder groove, later establish first semicylinder and second semicylinder agreeing with the back cover again and establish in the sleeve pipe, the contact tip of this kind of structure, traditional drilling process need not to carry on again in the manufacturing process, make the processing of contact tip simpler, also can guarantee the smooth degree of first semicylinder groove and the half welding wire inslot portion of second simultaneously, avoid inside too coarse influence the smooth line of passing of welding wire.

Furthermore, the novel welding machine also adopts a structure with double welding wire channels, so that the welding efficiency during welding is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the utility model;

FIG. 2 is a schematic diagram of the overall explosion structure of the utility model;

FIG. 3 is a schematic structural view of a first semi-cylinder and a second semi-cylinder of the present invention;

fig. 4 is a partially enlarged schematic view of the second semi-cylindrical threading end of the present invention.

Names corresponding to the marks in the figure:

1. the welding wire comprises a first semi-cylinder, 10 a first semi-welding wire groove, 2 a second semi-cylinder, 20 a second semi-welding wire groove, 21 a taper guide hole, 3 a sleeve, 30 a clamping step, 4 a key groove, 5 a wear-resistant alloy block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Embodiment 1 of the utility model:

as shown in fig. 1-2, a contact tip includes a first semi-cylindrical body 1, a second semi-cylindrical body 2, and a sleeve 3.

The first semi-cylinder 1 is provided with a first semi-welding wire groove 10, and the second semi-cylinder 2 is provided with a second semi-welding wire groove 20; the first half welding wire groove 10 axially penetrates through the first semi-cylinder 1, and the second half welding wire groove 20 axially penetrates through the second semi-cylinder 2; the outer contour specification and the size of the first semi-cylinder 1 are the same as those of the second semi-cylinder 2, and when the plane parts of the first semi-cylinder and the second semi-cylinder are jointed together, the first semi-cylinder and the second semi-cylinder form a complete cylindrical structure and are marked as electric conductors; the specification and the size of the first half wire groove 10 and the second half wire groove 20 are also completely the same, and when the first semi-cylinder 1 and the second semi-cylinder 2 are completely wedged together, the first half wire groove 10 and the second half wire groove 20 are synchronously wedged together; forming a complete inner hole in the conductor, and marking the inner hole as a welding wire channel, wherein two ends of the welding wire channel are respectively provided with openings at two ends of the conductor; wherein the right end is the inlet end and the left end is the outlet end.

The electric conductor cover that first halfcylinder 1 and second halfcylinder 2 formed after agreeing with is established in sleeve pipe 3, and the electric conductor is established for interference fit with sleeve pipe 3's cover, and in order to guarantee the fastness of connecting between the three, after interference fit, the seam crossing of first halfcylinder 1 and second halfcylinder 2, the contact edge at electric conductor and sleeve pipe 3 both ends all adopt the welded mode to weld it.

As shown in fig. 3, in the present embodiment, two sets of the first half wire grooves 10 and the second half wire grooves 20 are provided, when the first half cylinder 1 is engaged with the second half cylinder 2, the two sets of the first half wire grooves 10 and the second half wire grooves 20 corresponding to each other will also be engaged correspondingly to form two parallel wire channels. In the present embodiment, the first half wire groove 10 and the second half wire groove 20 are semi-circular grooves. In other embodiments, the semi-polygonal groove can be also arranged to be suitable for special welding requirements such as stranded welding wires and special-shaped welding wires.

As shown in FIG. 4, a tapered guide hole 21 is provided at the entrance end of the wire passage for the welding wire to enter. The outlet end of the welding wire channel is embedded with a wear-resistant alloy block 5, and the wear-resistant alloy block is embedded and sleeved on the outlet end of the welding wire channel.

A key slot 4 is provided on the outer edge of the inlet end of the conductor for interconnection with the contact tip holder. By adopting the connecting mode of the key groove and the key, the relative rotation between the contact tube and the contact tube seat can be avoided, thereby avoiding the problem of winding of double welding wires. In the present embodiment, four keyways 4 are provided at intervals along the circumference of the outer edge of the conductor, and in other embodiments, two, three or other numbers may be provided as the case may be.

The taper of the outer edge of the outlet end of the sleeve 3 enables the outlet end of the contact tube to better correspond to a narrow environment during welding.

Set up joint step 30 on the entrance point outer fringe of sleeve pipe 3, when the contact tube with welder cooperates, the electric conductor in the contact tube is pegged graft in welder, the mutual butt of the right flank of joint step 30 and welder's head, the inside interior step that sets up of conductive nozzle seat will be with the mutual butt of the left flank of joint step 30, along with continuously screwing of conductive nozzle seat and welder, the contact tube will be firmly fixed to guarantee the welded accuracy nature. In this embodiment, the sleeve 3 is integrally formed with the snap step 30.

In the embodiment, the first semi-cylinder 1 and the second semi-cylinder 2 are manufactured by adopting a die drawing mode; the first half wire groove 10 and the second half wire groove 20 are machined by a ball end mill, and in other embodiments, cold extrusion may be used.

Example 2

Embodiment 2 is different from embodiment 1 in that the first half wire groove and the second half wire groove are both semi-elliptical grooves, and the rest of the structure is the same.

Claims

1. A contact tip, characterized by: comprises a first semi-cylinder, a second semi-cylinder and a sleeve;

the first semi-cylinder is sleeved in the sleeve after being matched with the second semi-cylinder.

2. The contact tip as recited in claim 1, wherein: and the first half welding wire groove and the second half welding wire groove are correspondingly provided with two.

3. A contact tip as claimed in claim 2, wherein: the first half welding wire groove and the second half welding wire groove are both semi-circular grooves.

4. A contact tip as claimed in claim 2, wherein: the first half welding wire groove and the second half welding wire groove are both elliptical grooves.

5. A contact tip according to claim 3 or 4, wherein: the first half welding wire groove and the second half welding wire groove are matched to form a welding wire channel; the inlet end of the welding wire channel is provided with a taper guide hole for the welding wire to enter conveniently.

6. The contact tip as recited in claim 5, wherein: and a wear-resistant alloy block is embedded at the outlet end of the welding wire channel.

7. The contact tip as recited in claim 5, wherein: the first semi-cylinder and the second semi-cylinder are matched to form a conductor, and a key groove is formed in the outer edge of the inlet end of the conductor.

8. The contact tip as recited in claim 1, wherein: the outer edge of the outlet end of the sleeve is arranged in a taper mode.

9. The contact tip as recited in claim 1, wherein: the sleeve is provided with a clamping step convenient for limiting and clamping; the clamping step and the sleeve are integrally formed.