JPH04220174A - Device for fitting wire conduit for mig gun - Google Patents

Abstract

PURPOSE:To improve operability and the service life by fixing one end of the wire conduit of the MIG gun on a torch main body via a diffuser and fixing the other end thereof to a connector via a conduit end. CONSTITUTION:In fixing both ends of the wire conduit 8 by a setting twist 10 of the MIG gun, the one end of the wire conduit 8 is coupled with the torch main body 2 via the gas diffuser 4 and the other end thereof is coupled with the connector via the conduit end 8. Consequently, the end does not expand and contract or move for a bend or the twist of the wire conduit 8 at the time of using the gun and a core edge can pass smoothly through the inside of the wire conduit 8 to improve welding workability.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire conduit attachment device for a migun gun.

0002

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Application No. 55-11292, a wire conduit through which a core wire is inserted is connected to a connector, a cable connected to the connector, and a tip of the cable. A wire conduit is known in which the wire conduit is inserted through a connected handle case and a torch body attached to the handle case, and fixed to each other by screwing both ends of the wire conduit to the connector and the torch body.

0003

[Problems to be Solved by the Invention] The cable is often bent and twisted due to the intense movement of welding work, and as a result, the wire conduit is also bent and twisted, and the wire conduit is bent and twisted at both ends. If the installation is loose, it will come loose from the connector or torch body, and as a result, the end of the conduit will slide inside the connector etc. as the cable bends, etc., making it difficult for the core wire to move smoothly inside the wire conduit. There was an inconvenience that it could no longer be distributed.

[0004] The present invention aims to eliminate these disadvantages.

[0005]

[Means for Solving the Problems] In the present invention, a wire conduit through which a core wire is inserted is connected to a connector, a cable connected to the connector, a handle case connected to the cable, and a torch body attached to the handle case. In a wire conduit attachment device for a migun gun, the wire conduit is inserted into the connector and the torch body, and both ends of the wire conduit are fixed to the connector and the torch body using set screws, respectively. A cylindrical diffuser and a nozzle that overlap each other are fixed in the diffuser by a set screw inserted therethrough, and a cylindrical shape having a head larger than the conduit insertion hole of the connector is attached to the other end of the wire conduit. The above object is achieved by fitting the conduit end of the connector and fixing the other end to the connector using a set screw inserted through the connector and the conduit end.

[0006]

[Operation] During welding work, the cable is bent and twisted in order to direct the torch body to each welding location, and the wire conduit is also bent and twisted accordingly. One end of the wire conduit is attached to the torch body. It is fixed with a set screw inserted by inserting the nozzle into the diffuser.
The other end of the wire conduit is fixed by a set screw inserted through the conduit end fitted to this and the connector, so the end will not expand or contract due to bending or twisting of the wire conduit. Therefore, the core wire can flow smoothly inside the wire conduit, and each end of the core wire is fixed to the torch body and connector via the diffuser and the conduit end, so that the wire conduit cannot be fixed even if the wire conduit is repeatedly bent. Since the conduit end is provided with a head larger than the conduit insertion hole of the connector, the conduit end will not move loose in its axial direction.
Both ends of the wire conduit can be securely fixed for a long time.

[0007]

[Example] An example of the present invention will be explained based on the drawings.
Reference numeral 1 in the drawings indicates a handle case, and a torch body 2 is attached to the front end of the case 1, and a cable 3 is attached to the rear end. A cylindrical gas diffuser 4 is screwed to the front of the torch main body 2, and a cylindrical nozzle 5 is attached to the outer periphery of the diffuser 4 in a superimposed manner. The cable 3
The rear end of the connector is inserted through the connector case 6 and connected to the connector 7.
connected to. A wire conduit 8 is inserted through the end opening of the connector 7, and a conduit end 12 having a head 16 having an outer diameter larger than the diameter of the conduit insertion hole 15 of the connector 7 is fitted to the rear end of the wire conduit 8. After fitting the conduit end 12 into the insertion hole 15, it is fixed with the set screw 9 through which the connector 7 is inserted, and the front end of the wire conduit 8 inserted into the hole of the gas diffuser 4 is inserted into the nozzle 5. And it was fixed to the gas diffuser 4 with a set screw 10 inserted through the gas diffuser 4. In the figure, 11 is a core wire, 13 is a gas hose, and 14 is a control cable.

[0008] Both ends of the wire conduit 8 are fixed to the torch body 2 and the connector 7 via the gas diffuser 4 and the conduit end 12, respectively, so even if the cable 3 and the wire conduit 8 are bent during welding work, they will not be damaged. The fixed part does not loosen easily.

[0009]

[Effects of the Invention] As described above, according to the present invention, both ends of the wire conduit that are fixed with the set screw of the MIG gun are fixed to the torch body via the diffuser and to the connector via the conduit end. So,
The ends of the wire conduit do not expand or contract when bent or twisted, and since the conduit end is provided with a head larger than the conduit insertion hole of the connector, the conduit end does not move freely in its axial direction. Without any
Both ends of the wire conduit can be securely fixed for a long period of time, and the core wire can smoothly flow inside the wire conduit.

[Brief explanation of the drawing]

FIG. 1 A partially cut-away side view of an embodiment of the present invention.

[Explanation of symbols]

1 Handle case 2 Torch body 3
Cable 4 Gas diffuser
5 Nozzle 7 Connector 8 Wire conduit
9, 10 Set screw 11 Core wire 12 Conduit end 15 Conduit insertion hole 16 Head

Claims (1)

[Claims] Insert the wire conduit into which the core wire is inserted through the connector, the cable connected to the connector, the handle case connected to the cable, and the torch body attached to the handle case, and set both ends of the wire conduit. In a mounting device for a wire conduit for a MIG gun, which is fixed to the connector and the torch body using screws, one end of the wire conduit is attached to a cylindrical diffuser and a cylindrical diffuser provided at the tip of the torch body that overlap with each other. The nozzle is fixed in the diffuser using a set screw inserted through it, and a cylindrical conduit end having a head larger than the conduit insertion hole of the connector is fitted to the other end of the wire conduit. A mounting device for a wire conduit for a MIG gun, characterized in that it is fixed to the connector by a set screw inserted through the connector and the conduit end.