DE7715603U1 - Welding machine - Google Patents

Description

An embodiment of the invention is shown in the drawing and is described in more detail below. Show it

Fig. 1 shows the welding device according to the invention in side view and partly in section, and

2 shows the welding device in a front view.

The welding device shown in the drawing consists of a handle 1 made of insulating material, the width of which from the front decreases towards ainten. At the front end of the handle 1, a head 2 with a neck 18 is rotatably attached. A channel 3 extends parallel to one long side of the handle 1, and a channel 6 extends parallel to the other long side of the handle. The two close due to the narrowing shape of the handle Make an angle with each other on the long sides. In the channel 3 there is a tube 7 made of metal, the front part of which protrudes from the channel 3 and extends through the neck 18 of the head 2 and is connected in the head with a cross piece 11 made of metal. The crosspiece 11 has a longitudinal cavity which is in communication with the cavity of the tube 7, as well as an insert 19 made of metal, in which a tungsten electrode 5 extending along the center line of the head 2 can be clamped = the electrode 5 is also in a gas hood forming the front part of the head 2 13 supported by a support part 12 which is fastened in the crosspiece 11 and which has channels 20 and openings 21. At the rear A sleeve 8 is attached to the end of the tube 7, and between the end of this sleeve 8 facing the head 2 and one in the channel 3 provided shoulder facing away from the head 2, a compression spring 9 is provided, which the somewhat displaceable in the longitudinal direction tube "7 pushes backwards to rest against a connection, which is generally designated 10. The connection is used to create a hose and an electrical conductor provided therein to the welding device for the supply of protective gas, usually argon, and connected to electricity. The connection 10, the pipe 7 with its parts and the crosspiece 11 in the welding head 2 can can be formed in various ways, and since they do not form part of the present invention, they are not detailed here has been described. It is sufficient to establish that the welding head 2 is reliably supplied with protective gas by means of these parts

7715603 11/03/77

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is supplied, which is via the pipe 7, the cavity of the cross piece 11, the channels 20 and the openings 21 through the gas hood 13 all around the electrode 5 flows through its metallic Connection to the electrical connection in the gas supply hose via the insert 19, the crosspiece 11, the pipe 7 and the connector 10 receives electricity. A toggle switch 22 is provided to regulate the supply of electricity, gas and welding wire.

A tube 14 extends through the channel 6 through which a welding wire 4 does not attach to the head 2 by means of a feed mechanism shown is fed. In the front part of the handle 1 under the neck 18 of the welding head 2 is a Sleeve member 15, 16 rotatably mounted, through which the welding wire 4 extends to a point in the vicinity of the tungsten electrode 5 extends. The sleeve member 15, 16 consists of a bearing part 16 which is rotatably mounted in a front, enlarged one Part of the channel 6, and a tubular member 15 which, as can be seen from Fig. 1, is somewhat curved.

The head 2 is rotatably mounted in the handle i by means of a bearing pin 17 protruding into the channel 3. The head 2 can be steplessly rotatable, but preferably a snap device, not shown, for step-by-step adjustment in the transition mounted between the neck 18 and the handle 1, for example a protrusion protruding from the one surface which is shown in FIG a corresponding recess in the other surface fits, the head slightly after turning against the action of the spring 9 is pulled forward so that the projection can be moved from one recess into the other. By turning the head 2 and of the sleeve member 15, 16 can be the position of the welding point in relation to the handle 1 can be changed within wide limits, as shown in FIG. You can use the inventive Welding device also weld joints that can only be welded under with the help of conventional welding links of this type weld with great difficulty.

Instead of the rotatable attachment of the sleeve member 15, the bearing member 16 can be provided firmly in the handle, and the tubular part 15 can be articulated or flexible so that its front end is at the desired angle in relation

7715603 11/03/77

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to the welding head 2 can be adjusted. According to a special one Execution, this part 15 can be significantly longer than shown in Fig. 1, so that it forms a large arch shaped and can be brought up to the welding head 2 from practically all directions.

7715603 03.1177

Claims (1)

I Il Il I I I I II III I I I I I I I I I II ill I t I I I ι I I I ι. Ii Il III 5. Schwelssgerät according to claim 3, characterized in that a front part (15) of the sleeve (15, 16) for the carbon dioxide wire (4) is flexible. The invention relates to a welding device for welding with protective gas, tungsten electrode and supplied welding wire, comprising a handle made of insulating material with a channel made of electrically conductive material for the supply of protective gas to a welding head and electrical current to the tungsten electrode and a separate channel for supplying welding wire an arc generated between the tungsten electrode and a welding object. Many different welding devices of this type are already known. They work flawlessly, but have the disadvantage afflicted by the fact that they are relatively unwieldy and are tiring for work that takes a long time. The invention is based on the object of creating a welding device which is convenient to use and also easy to use can be adapted to the current working conditions. According to the invention, this object is achieved in that the two channels of the welding device are mainly straight and encapsulated in the handle in such a way that they are side by side lying inlets diverge in the direction towards the welding head, which with the two channels encloses a non-equilateral triangle, the shortest side of which is formed by the welding head and the longest side of the welding wire channel. In order to facilitate the welding of welded joints that are oriented in different ways, the welding head is the one according to the invention Welding device is preferably designed to be rotatable. Another advantage is that the channel for the welding wire opens into a sleeve fixed in the handle, the front end of which in relation to that end of the welding head from which the Tungsten electrode protrudes, is adjustable, either by the fact that the sleeve is slightly curved and rotatably fastened in the handle, or that a front part of the sleeve is designed to be flexible. _t 7715603 11/03/77 PATENTJANWAUlil * SHIP V, FÜNJSR STRSHU Γ »■ ι nt I I I I IMI FINCK S * 3, MONOMEN 00 POSTADRESSEl POST BOX 0? / Q1 BO, DiBOQO MONOMEN OB Applicant s Henning Claes Edlund Nygafcan, 27 , S ~ 6? 0 20 ESKILSTUNAi Sweden Designation : welding device Protection claims : KARt, UUDWia »OHIPP DIPU. QHBM, DR. AkKXANRKR V,! »ÜNHR DtPU, INQ. PBTBR BTRBHU DIPUCMBM. DR, URSUUA SOHOMKUtHpPP DIPU, INO. DIKTBR KBPINOMAUa 'DR. INQi DtBTOR PINOK TRUBPON (OSO) 48 UQ 04, TKUBK Ο · αίΐΒβΒ AURO O TKUBaRAMMR AUROMAROPAT MÖNCHEN May 16, 1977 DG-K1763 1, welding machine for welding with protective gas, tungsten electrode and 2ugged welding wire, comprising a handle made of insulating material formed with an aus.electrically conductive material Channel for supplying shielding gas to a welding head and electrical current to the tungsten electrode and one separate from it. Channel for feeding welding wire to one between the tungsten electrode and an arc generated by a welding object »characterized in that the two channels (3, 6) mainly straight and encapsulated in the handle (1) in such a way that they are from adjacent entrances in the direction of the welding head (2) diverge, which one with the two «· channels fä, 6), a includes a non-equilateral triangle, the shortest side of which from i Welding head (2) and its longest side from the welding wire duct (6) is formed. 2 »· Welding apparatus as claimed in claim Ij _f characterized in that the welding head (2) is rotatable. 3. Welding device according to claim 1 or 2, characterized in that the channel (6) for the welding wire (4) in a handle (1) attached sleeve (15, 16) opens, the front end of which in relation to that end of the welding head it (2) from which the tungsten electrode (5) protrudes, adjustable int. ' 4. Welding device according to claim 3, characterized in that the sleeve (15, 16) for the welding wire (4) is slightly curved and rotatably fastened in the handle (1). 7715603 03.1177