JP3247779U - Welding torch nozzle cleaner - Google Patents

Abstract

[Problem] The handle portion for operating the nozzle cleaner can be used for cutting the welding wire and removing the nozzle cover from the torch, eliminating the need to prepare separate tools for these tasks and increasing convenience. [Solution] The nozzle cleaner 1 for a welding torch is equipped with a nipper 4 for cutting the wire and a pair of pliers 5 for gripping the outer periphery of the nozzle cover to remove it from the torch, all of which are integrated into the handle portion 3 of the nozzle cleaner body 2. [Selected Figure] Figure 1

Description

This invention relates to a nozzle cleaner for polishing off welding spatter that has built up on the inner surface of a welding torch nozzle.

Conventionally, there have been nozzle cleaners that can easily remove spatter adhering to the inside of a nozzle without removing the torch nozzle from the welding torch body (see, for example, Patent Document 1). This nozzle cleaner comprises a cleaner body having a plurality of grinding blades (grinding parts) arranged in sequence in the axial direction that are inserted into the nozzle of a welding torch, and a handle part that allows an operator to grip and operate the cleaner body during grinding work. It is also known to attach the cleaner body to a ratchet handle to make the work easier (see, for example, Non-Patent Document 1).

Utility Model Registration No. 3244292 Internet URL: https://www.lobtex.co.jp/

However, the nozzle cleaners described in these documents are only used as cleaners for welding spatter, and cutting the welding wire or removing the nozzle cover from the torch requires the use of separate tools.

The present invention aims to solve the above problems by providing a nozzle cleaner for a welding torch that can be used to cut the welding wire or remove the nozzle cover from the torch using the handle that operates the nozzle cleaner, eliminating the need to prepare separate tools for these tasks and improving convenience.

In order to achieve the above object, the present invention is a nozzle cleaner for a welding torch,
The nozzle cleaner body is characterized by having a handle portion integrally equipped with nippers for cutting the wire and pliers for clamping the outer periphery of the nozzle cover to remove it from the torch.

In the above nozzle cleaner, the nippers and pliers open and close in a plane perpendicular to the axial direction of the nozzle cleaner at the base of the nozzle cleaner body, and it is desirable that the pliers be provided on the inner surface of the operating grip of the nippers.

Furthermore, in the above nozzle cleaner, it is desirable that the nippers and pliers be detachable from the base of the nozzle cleaner body using a ratchet.

The nozzle cleaner for the welding torch of this invention uses nippers and pliers as a handle to grip the nozzle cleaner and remove spatter from inside the nozzle, the nippers in the handle can be used for wire cutting, and the pliers in the handle can be used to remove the nozzle cover from the torch, providing multiple functions with a single integrated tool and increasing convenience.

The nippers and pliers can be opened and closed in a plane perpendicular to the axial direction of the nozzle cleaner, making them easy to hold as a handle for the nozzle cleaner.

In addition, the nippers and pliers can be attached and detached from the nozzle cleaner body using a ratchet, making it easy to replace the nozzle cleaner body.

1 is a perspective view of a nozzle cleaner for a welding torch according to an embodiment of the present invention; FIG. 13 is a perspective view of the nozzle cleaner with the nozzle cleaner body inserted into the nozzle for spatter removal. FIG. 4 is a perspective view of the nozzle cleaner handle with nippers in use. FIG. 13 is a perspective view of the nozzle cleaner in a state where the pliers of the handle portion are being used. FIG. 13 is a perspective view of the nozzle cleaner in a state where another pair of pliers is being used on the handle portion. 1 is an exploded perspective view of an embodiment in which the handle portion (nippers and pliers) is detachable from the nozzle cleaner body. FIG. FIG. 4 is a perspective view of the nozzle cleaner held in a mobile phone holder.

(Nozzle cleaner)
A nozzle cleaner for a welding torch according to one embodiment of the present invention will be described below with reference to the drawings. Fig. 1 shows the external appearance of the nozzle cleaner 1. In Fig. 1, the nozzle cleaner 1 comprises a nozzle cleaner main body 2 and a handle portion 3 integrally provided on a base portion 22 of the nozzle cleaner main body 2. The handle portion 3 comprises a nipper 4 and a pair of pliers 5 integrally provided. An operator holds the handle portion 3 and inserts the nozzle cleaner main body 2 into a nozzle 61 (Fig. 2) to perform cleaning work.

The nippers 4 are used when cutting welding wire and the like, while the pliers 5 are used when clamping the outer circumference of a cylindrical nozzle cover and removing it from the torch. The nippers 4 and pliers 5 open and close on a rotating shaft 42 as a fulcrum within a plane perpendicular to the axial direction A of the nozzle cleaner 1. The nippers 4 are equipped with a pair of blades 41 and a pair of operating grips 43 that are integral with each of the pair of blades 41 and extend in an X-shape sandwiching the rotating shaft 42. When an operator grasps the outer surfaces of the pair of operating grips 43 with his or her hands and rotates them in the closing direction on the rotating shaft 42 as a fulcrum, the pair of blades 41 of the nippers 4 mesh with each other.

The pair of operating grips 43 themselves form the pliers body, and the pliers 5 are provided with grooves 51, 52 formed along the semicircular curved surfaces (as viewed in the axial direction) of the opposing inner surfaces of the operating grips 43. The operator grasps the outer surfaces of the pair of operating grips 43 with his hands and rotates the pliers 5 around the rotating shaft 42, allowing the opposing grooves 51, 52 to clamp the outer periphery of the nozzle 61 (Figure 4) of the welding torch 6. In this embodiment, the pliers 5 are provided with two types of grooves on the opposing inner surfaces of the pair of operating grips 43, the groove 51 closer to the grip tip is for larger diameters and is suitable for clamping the nozzle 61 (nozzle cover), and the groove 52 closer to the rotating shaft 42 is for smaller diameters and is suitable for clamping the contact tip 63 (Figure 5).

The nozzle cleaner body 2 is attached to a position close to the pivot shaft 42 of one of the operating grips 43, which is one component of the handle section 3, and is detachable, for example, by screw fastening or ratcheting. In this embodiment, the operating grip 43 has an enlarged flat surface for mounting the nozzle cleaner body 2, and the other operating grip 43 is shaped to accommodate it. As a result, when the operating grips 43 are closed, the outer surfaces of the pair of operating grips 43 are symmetrical (as viewed in the axial direction) with respect to the line connecting the pivot shaft 42 and the mounting position of the nozzle cleaner body 2. With this shape, it is easy for an operator to hold the outer surfaces of the pair of operating grips 43 as the handle section 3 when using the nozzle cleaner body 2.

In this embodiment, the base 22 of the nozzle cleaner body 2 is fixed to the flat surface of one of the operating grips 43 of the handle portion 3 via a spacer disc 23, and can be screwed or detached from the back side of the operating grip 43 as shown in the figure. The spacer disc 23 has a small diameter near the base 22 in the axial direction A, and the gap created by this small diameter makes it easier to hold the nozzle cleaner 1 in a mobile phone holder (described later).

(Nozzle cleaner body)
The nozzle cleaner body 2 comprises an abrasive part 21 and a cylindrical base part 22 located on the axial rear end side of the abrasive part 21, both of which are integrally manufactured from metal or the like, and the handle part 3 is fixed to this integral part by screws or can be freely attached and detached.

The grinding section 21 of the nozzle cleaner body 2 is equipped with grinding blades 21a, 21b, 21c, and 21d that can be inserted into the nozzle of a welding torch and are arranged in sequence in the axial direction. The grinding blade 21a is located at the axial tip end and is made of a square plate-like body when viewed in the axial direction, with the edges that form the sides and ridges of the plate-like body as the cutting edge. The grinding blades 21b, 21c, and 21d are square plate-like bodies when viewed in the axial direction and have cutting edges made up of four edges, and are located at a different angle from the grinding blade 21a.

Between these grinding blades, cylindrical separation sections for separating each blade are provided integrally, for example, by cutting. The grinding section 21 is manufactured from any material capable of forming a cutting edge with the strength and durability required to remove adhering deposits, for example, a metal material such as an iron alloy. A cavity is provided in the center of the grinding section 21 to avoid interference with the power supply tip.

(Used as a nozzle cleaner)
2 shows the state in which the nozzle cleaner body 2 of the nozzle cleaner 1 is inserted into the nozzle 61 of a welding torch 6 for arc welding to perform spatter removal work. The welding torch 6 is equipped with a nozzle 61 for supplying shielding gas, and a contact tip 63 (power supply tip) (FIG. 5) that contacts a welding wire 62 (FIG. 3) fed along the axis of the welding torch 6 to supply power.

The operator holds the nozzle 61 in one hand, holds the outer surface of the operating grip 43 of the handle part 3 of the nozzle cleaner 1 with the other hand H, and while rotating the nozzle cleaner 1, pushes the grinding blades (21a, 21b, 21c, 21d) of the grinding part 21 into the inside of the nozzle 61. This allows these grinding blades to scrape off and clean the deposits that have adhered to and accumulated on the inner surface of the nozzle 61. The operator can easily hold the handle part 3 and rotate the nozzle cleaner 1 by closing the pair of operating grips 43 and gripping the outer surface of the operating grip 43 near the attachment position of the nozzle cleaner main body 2. The base 22 functions as a stopper against which the tip of the nozzle 61 abuts when the grinding part 21 is inserted into the nozzle 61.

(Used as nippers)
3 shows the nippers 4 of the handle portion 3 of the nozzle cleaner 1 in use. An operator grasps the outer surfaces of a pair of operating grips 43 and operates them in the closing direction to engage the pair of blades 41 and cut the welding wire 62. After using one nozzle cleaner 1 to clean the nozzle, the nippers 4 can be used by simply changing the way the operating grips 43 are held.

(Used as pliers)
4 shows the state in which the pliers 5 of the handle portion 3 of the nozzle cleaner 1 is being used. By gripping the outer surfaces of the pair of operating grips 43 and operating them in the closing direction, the operator can clamp the nozzle 61 (nozzle cover) using the large diameter concave and convex grooves 51 on the inner surfaces of the operating grips 43 as pliers 5, and can remove the nozzle cover for replacement. Here, one nozzle cleaner 1 can be used as pliers 5 simply by changing the way the operating grips 43 are held.

Figure 5 shows the state in which another pair of pliers 5 on the handle portion 3 of the nozzle cleaner 1 is being used. Here, the small diameter concave and convex grooves 52 on the operating grip 43 are used as the pliers 5 to grip the contact tip 63 after removing the nozzle cover described above, and perform the removal operation.

(Handle section or nozzle cleaner body can be freely detached)
6 shows the nozzle cleaner body 2 removed from the handle part 3 in an embodiment in which the handle part 3 (nippers 4 and pliers 5) is detachably attached to the base part 22 of the nozzle cleaner body 2 using a ratchet. The handle part 3 is provided with a rectangular column member 25 which is fixed to the nozzle cleaner body 2 at the attachment position of the operating grip 43 by screwing from the back side shown in the figure. This rectangular column member 25 has a ball 26 provided with elasticity for ratcheting built into one side thereof, and the bottom part of the operating grip 43 close to the flat surface is trapezoidal.

The base 22 of the nozzle cleaner body 2 has a recessed space 27 into which the rectangular column member 25 can fit, and the inner wall of this recessed space 27 has a ball receiving surface for the ratchet. Thus, the nozzle cleaner body 2 can be attached and detached to the handle portion 3 using the ratchet. This allows the nozzle cleaner body 2 to be easily replaced with a single touch. In addition, the trapezoidal bottom of the rectangular column member 25 allows a small gap to be provided in the axial direction A between the base 22 of the nozzle cleaner body 2 and the flat surface of the operating grip 43 without using the spacer disc 23 described above, making it easier to hold the nozzle cleaner 1 in a mobile phone holder (described later).

The handle portion 3, which includes the nippers 4 and pliers 5, can be removed from the nozzle cleaner body 2, and a disk-shaped member (not shown) can be temporarily attached in its place, allowing this to be used as the handle portion.

(Nozzle cleaner held in mobile phone holder)
7 shows the nozzle cleaner 1 held by the mobile phone holder 7. The mobile phone holder 7 is attached to a work belt worn on the welding worker's work clothes and is intended to hold the nozzle cleaner 1. The mobile phone holder 7 comprises a main body plate 71 formed by punching a metal plate or the like, and a U-shaped fork portion 72 extending upward and provided at the tip of an arm made of a metal rod or the like extending forward from the lower portion of one side of the main body plate 71. A notched opening 73 is formed in the upper portion of the main body plate 71 for attaching it to the work belt.

The fork portion 72 fits into the small diameter gap between the base portion 22 of the nozzle cleaner body 2 and the handle portion 3 to hold the nozzle cleaner 1. The nozzle cleaner 1 held by the fork portion 72 is oriented so that the tip of the grinding portion 21 faces the body plate 71, and the tip of the grinding portion 21 does not interfere with the body plate 71.

When the nozzle cleaner 1 is to be held by the mobile phone holder 7, the worker holds the handle portion 3 of the nozzle cleaner 1 in his/her hand and slides the back of the handle portion 3 down along the front of the fork portion 72 from above the fork portion 72 of the mobile phone holder 7, inserting the fork portion 72 into the small diameter gap between the base portion 22 of the nozzle cleaner main body 2 and the handle portion 3. In this way, the nozzle cleaner 1 can be held in close contact with the mobile phone holder 7 and is less likely to fall off accidentally.

The present invention is not limited to the configuration of the above embodiment, and various modifications are possible. For example, the nippers 4 of the handle portion 3 may be pliers, and the pliers 5 may also have any configuration.

REFERENCE SIGNS LIST 1 nozzle cleaner 2 nozzle cleaner body 21 grinding portion 21a, 21b, 21c, 21d grinding blade 22 base 23 spacer disc 25 prismatic member 26 ball 27 concave space 3 handle portion 4 nippers 41 pair of blades 42 rotating shaft 43 pair of operating grips 5 pliers 51, 52 concave and convex grooves 6 welding torch 61 nozzle 62 welding wire 63 contact tip (power supply tip)
7 Mobile phone holder 71 Body plate 72 U-shaped fork 73 Notch opening A Axial direction H One hand

Claims (3)

1. A nozzle cleaner for a welding torch, comprising:
This nozzle cleaner for a welding torch is characterized in that the handle portion of the nozzle cleaner body is integrally provided with nippers for cutting wire and pliers for clamping the outer periphery of the nozzle cover to remove it from the torch. The nozzle cleaner for a welding torch according to claim 1, characterized in that the nippers and pliers are opened and closed in a plane perpendicular to the axial direction of the nozzle cleaner at the base of the nozzle cleaner body, and the pliers are provided on the inner surface of the operating grip of the nippers. The nozzle cleaner for a welding torch according to claim 1 or 2, characterized in that the nippers and pliers are attached and detached freely to the base of the nozzle cleaner body using a ratchet.