DE7719016U1 - Tubular welding element holder for a stud welding gun - Google Patents

Description

'>.' '.. * ". PATENT AGENCIES

DR. CLAUS REINLÄNDER DIPL.-ING. KLAUS BERNHARDT Orthetraße 12 · D-8000 Munich 60 ■ Telephone (089) 832024/5 Telex 5212744 Telegrams Interpatent

322/3

Manfred Heberle

Weblinger Weg 14
8060 Dachau

Tubular welding element holder for a stud welding gun

The innovation "relates to a tubular welding element holder for a stud welding gun, which has an axial receiving bore for the welding element at the front end, preferably a welding nail.

Such a known welding element holder has two or four longitudinal slots in the area of the receiving bore, which result in a small amount of radial flexibility of the welding element holder, so that one in the Aufnahrjebohrung inserted welding nail is held elastically in the welding element holder.

The disadvantage here is that the longitudinal slots of the welding element holder exposed and when welding there is a risk that weld spatter will penetrate the longitudinal slots and clog them and, if necessary, weld them together. In order to

the flexibility of the welding element holder is canceled and there is no longer any elastic holding of the welding nails possible.

The innovation is based on the task of a welding element holder of the type mentioned at the beginning, in which the welding nail is elastic despite the occurrence of weld spatter

can be held. To the solution

7719016 10/13/77

This task proposes the innovation that the tube is unslotted is and that a clamping device for the welding nail is used in the tube.

The welding element holder according to the invention is completely closed off from the outside, so that weld spatter does not have any disadvantageous effects Can exert effects. The resilient holding of the welding nail is provided by the inserted into the pipe Clamping device reached.

A cylindrical insert is preferably fixed in the tube, which has an axial bore and longitudinal slots and in the area of the longitudinal slots one opposite the inner diameter of the pipe has reduced outer diameter.

The insert can be provided with a shoulder which rests against a shoulder on the inner wall of the tube. So that's the Use set in the longitudinal direction of the tubular welding element holder.

The insert is preferably pressed into the pipe, so that no additional means for a force-fit connection are required are required between the pipe and the insert.

Preferably, the pointed front end of the tube has a thin-walled cylindrical extension, whereby the Head of the welding nail is held a certain distance from the front end of the pipe, thus welding in place of the nail on the pipe is counteracted.

An exemplary embodiment of the innovation is shown in the drawing, which is an enlarged scale Shows section through a welding element holder. The welding element holder consists of a tube 1, which at the front tapered end 2 with a hole 3 for pushing through the (not shown) welding nail is provided, the front end of the tube in a thin-walled cylindrical Extension 4 passes. The pipe is about halfway along

7719016 10/13/77

I «· J. t \ _ f

ι · · -r ■

provided with a shoulder 5 on its inner wall. In the Tube is pressed in as a clamping device for the welding nail serving cylindrical insert 6, the one axial bore only receiving the welding nail and about Has longitudinal slots 8 over half its length. In the area of these longitudinal slots 8, the insert 6 has a smaller outer diameter than the inner diameter of the tube 1, so that the between the slots 8 is located Parts of the insert 6 can move resiliently in the radial direction. The insert 6 has a paragraph 9 on the Shoulder 5 of the pipe rests. This allows the use not be pushed further into the tube, so that between the end face of the insert 6 and the front end of the tube sufficient space for the radially resilient movement of the lying between the slots 8 parts of the Bet 6 results.

The outer diameter of the thin-walled cylindrical extension 4- of the tube 1 is preferably somewhat smaller chosen as the diameter of the head of the weld nail.

7719016 13.111.77

Claims (5)

I · · ■ t f · II · · ft I III ■ · · I · III I I I I I ι ι ι Ii it ScliutzansOruclie 1. Tubular welding element holder for a stud welding gun, which at the front end has an axial receiving bore for the welding element, preferably a welding nail, characterized in that the tube (1) is unslotted and that in the tube a clamping device (6, for the welding nail is used. ■ 2. Welding element holder according to Claim 1, characterized in that that in the tube (1) a cylindrical insert (6) is fixed, which has an axial bore (7) and longitudinal slots (8) and in the area of the longitudinal slots an outer diameter that is smaller than the inner diameter of the tube having. 3. Welding element holder according to claim 2, characterized in that the insert (6) is provided with a shoulder (9) is the ai ^ of a shoulder (5) on the inner wall of the tube (1) is applied. 4-. Welding element holder according to claim 2 or? 3 »thereby characterized in that the insert (6) is pressed into the tube (1). 5. welding element holder according to one of claims 1 to 4, characterized in that the pointed front end (2) of the tube (1) a thin-walled cylindrical extension (4) ] | having. 7719016 10/13/77