JP2506454Y2 - Auxiliary cable for welding - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a welding auxiliary cable used for welding a general-purpose welding machine using a coated welding rod with an extra-fine diameter welding rod.

[Prior art]

In welding with a general-purpose welding machine that uses a coated welding rod, the welding rod is clamped in the welding rod holder of the cable extending from the welding machine, welding is performed with the welding rod holder in hand, and the thickness of the welding rod core wire is The welding current is adjusted accordingly.

[Problems to be solved by the device]

As described above, in welding performed by holding the welding rod holder in the hand, if the welding current is relatively large due to the thickness of the welding rod core wire, the amount of heat generation is large and there is a slight change in the arc length. However, welding can be performed without any problem unless the material to be welded (base material) is a thin plate or the like.

However, in welding using an extra-fine diameter welding rod, the welding current is small and the amount of heat generated is small due to the thickness of the welding rod core wire, and moreover, the welding target is often a thin plate or the like that is difficult to weld.
Even a slight change in the arc length has a great effect on the welding result.

Therefore, in welding using an extra-fine diameter welding rod, when the welding rod is sandwiched between ordinary welding rod holders and the holder is held in the hand to perform welding, a very high degree of skill is required in terms of work, and , Workability is also poor.

The present invention has been made in view of the above points, and an object of the present invention is to provide a welding auxiliary cable that simplifies welding using an extra-fine diameter welding rod and can improve work efficiency.

[Means for solving the problem]

The gist of the present invention for achieving the above-mentioned object is to use by connecting to a main cable of a welding machine using a coated welding rod, and a welding rod holder for the main cable is provided at one end of the cable body. A connecting piece to be sandwiched is provided, and a connecting portion to which the end portion of the welding rod core wire is inserted for connection is provided at the other end, and the connecting portion is provided at the center portion of the core wire made of a stranded wire while the end of the cable body is cut. , Characterized in that a fine hole having an appropriate depth is formed in such a manner that the stranded wire group is spread over the entire circumference, and an elastic sheathing material is fitted to the end portion of the cable body corresponding to the fine hole. It is an auxiliary cable for welding.

[Action]

In the above configuration, the connecting piece is sandwiched between the welding rod holders of the main cable extending from the welding machine, and at the connection portion provided at the end portion of the cable body, the welding rod core wire end portion is formed in the small hole formed in the center of the cable core wire. When the insert is inserted, the diameter of the connecting part is expanded and elastic pressure is applied from the surroundings to the end of the welding rod core wire, and the core wire of the cable is crimped onto the end surface of the welding rod core wire by a tight fit. It In this way, the connection of the core wire end of the extra-fine diameter welding rod to the connection portion is done by inserting and removing it into the pore, and the worker wears gloves made of heat resistant and insulating fiber in his hand and holds the pencil in the same manner as holding a pencil. Hold near the tip of the to produce an arc between the tip of the welding rod and the welding material and perform welding.

During welding, the hand holding the welding rod lightly rests on the welding material and moves the welding rod to perform welding while adjusting the arc length.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an auxiliary cable of the present invention with a part omitted, and FIG. 2 is a schematic view showing a use mode.

In the figure, reference numeral 1 denotes a cable body, which is provided at one end thereof with a plate-shaped connecting piece 2 which is sandwiched by a welding rod holder C of a main cable B extending from a welding machine A, and at the other end of which a very small diameter welding is performed. A connecting portion 3 to which the rod D is connected is provided.

The cable body 1 has a thickness capable of passing a welding current necessary for welding using the extra-fine welding rod D. Further, as the connecting portion 3, with the end portion of the cable body 1 being cut off, the core wire 4 made of a stranded wire is formed in the center portion to expand the twisted wire group around the entire circumference, and the pores are formed at appropriate depths. 5 is formed, and an elastic sheathing material 6 made of a rubber material or the like is fitted to the end of the cable body corresponding to the pores 5. The elastic sheathing material 6 is a welding rod for the pores 5. The end portion D ′ of the core wire is inserted in a push-in state to apply elastic pressure, and protects the connection portion 3.

〔effect〕

According to the present invention configured as described above, when the end portion of the welding rod core wire is inserted into the small hole formed in the center of the core wire of the cable at the connection portion, the diameter of the connection portion including the elastic sheathing material is expanded. Since elastic pressure is applied to the end of the welding rod core wire from the surroundings, the core wire of the cable is crimped to the end face of the welding rod core for crimping the connection. The connection of the core wire end portion of the welding rod to the connection portion can be easily performed by inserting / removing into / from the pores, thereby improving workability. Also,
The cable body is smaller and lighter than the main cable extending from the welding machine.The extra-fine diameter welding rod connected to this auxiliary cable requires the worker to wear gloves made of heat-resistant and insulating fiber in his hand and pencil. Since the welding is performed by holding near the tip of the welding rod, the workability is good, the arc length can be finely adjusted, and the stable arc finishes the welding part. Will also be good.

[Brief description of drawings]

FIG. 1 is a perspective view of an auxiliary cable of the present invention with a part cut away, and FIG. 2 is a perspective view showing a use state. 1 ... Cable body, 2 ... Connection piece, 3 ... Connection part, 4
…… Cable core wire, 5 …… Medium hole, 6 …… Elastic exterior material, A
...... Welding machine, B ... Main cable, C ... Welding rod holder, D ... Ultra-fine welding rod.

Claims (1)

(57) [Scope of utility model registration request] 1. A main cable of a welding machine using a coated welding rod, which is used by being connected to a welding rod holder of the main cable at one end of the cable main body, and the other end of which is welded. A shape in which a connecting portion to which the end portion of the rod core wire is inserted and connected is provided, and the connecting portion is spread over the entire circumference of the core wire core portion formed of the twisted wire while the end of the cable body is cut. 2. An auxiliary cable for welding, characterized in that a pore having an appropriate depth is formed, and an elastic armor material is fitted to the end portion of the cable body corresponding to the pore.