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Welding torch

A technology of welding torch and welding wire, which is applied in the direction of welding equipment, welding rod characteristics, arc welding equipment, etc., and can solve the problems of difficulty in adjusting the pressure of cylindrical chips

Active Publication Date: 2009-09-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to adjust the pressure according to the loss of the cylindrical chip that cannot be confirmed from the outside, and it is practically impossible to always adjust it to a good state during production.

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] (Embodiment 1)

[0026] use below figure 1 A preferred mode of carrying out the present invention is described through Fig. 4 . figure 1 It is a schematic sectional view showing the welding torch of this embodiment. figure 2 It is an enlarged cross-sectional view showing the collet case and its surroundings according to this embodiment. image 3 It is an enlarged cross-sectional view of the main part of the torch body and its surroundings in this embodiment. Figures 4A-4C It is a top view, a front view, and a bottom view of the power supply collet of this embodiment.

[0027] Figure 1 ~ Figure 4C Among them, the tail end (not shown in the figure) of the torch cable (torch cable) 1 is installed on the wire feeding device (not shown in the figure). On the central axis of the welding torch cable 1, a welding wire 11 (hereinafter referred to as welding wire for short, referring to figure 2 ) holes. In addition, a torch body connection portion 1 a for detachably c...

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PUM

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Abstract

A welding torch includes a tubular power supply collet (6) having a slot formed at the distal end and supplying power to a welding wire to be inserted thereinto, a collet case (7) containing the power supply collet (6) and having an abutment portion abutting on the distal end of the power supply collet (6), a flexible inner tube (4) for guiding the welding wire to the power supply collet (6), a torch body (3) into which the inner tube (4) is inserted and provided, at the distal end thereof, with the collet case (7) removably, and a spring (5) for pressing the power supply collet (6) in the distal end direction of the welding wire wherein a tapered face is provided in at least one of the distal end of the power supply collet (6) and the abutment portion of the collet case (7). It is applicable to a curved torch with a simple structure.

Description

technical field [0001] The present invention relates to a welding torch provided with a forced power supply mechanism used for, for example, consumable electrode gas shielded arc welding. Background technique [0002] As a forced power supply mechanism, we know a jacket type forced power supply structure (Patent Document 1). This is a type where the power supply part is cylindrical, and the inner diameter is approximately equal to the outer diameter of the welding wire (hereinafter referred to as welding wire), and the cylindrical power supply part is divided into multiple parts by a plane containing the central axis or through a slit. A structure in which a slit is provided and the inner diameter surface of the cylindrical power supply part is pushed against the welding wire by a force applying mechanism. [0003] The structure and operation of the welding torch having the jacket type forced power supply structure disclosed in Patent Document 1 will be briefly described be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/29
CPCB23K9/295B23K9/29B23K9/173
Inventor 向井康士三岛俊之
Owner PANASONIC CORP