FR2516831A1 - ELASTIC SUPPORT FOR TORCH - Google Patents

Abstract

A) TORCH, B) TORCH CHARACTERIZED IN THAT IT IS FIXED ON THE SUPPORT12 IN SUCH A WAY THAT IT CAN PIVOT WITH ITS LONGITUDINAL AXIS42 AROUND THE SUPPORT12, THAT IT CAN ELASTICALLY DEFORM WITH ITS LONGITUDINAL AXIS44, IN EACH OF THE AXES44, 46 PERPENDICULAR TO THE SUPPORT, BY MEANS OF A BODY36 MOUNTED ON THE SUPPORT12 AND THAT IT IS IMMOBILIZED AGAINST A RELATIVE ROTATIONAL DISPLACEMENT AROUND ITS LONGITUDINAL AXIS BY MEANS OF LOCKING DEVICES30,32.

Description

Support 6 Torch Case The present invention relates to

unchalumeau

  of soudaej and / or cutting with a corresponding support.

  For such torches, it is necessary on the one hand, a rigid attachment so that the setting welding or cutting does not go out of order and, on the other hand, it is desirable to have a flexible support, because despite the care very important for the use of such torches, for example for underwater cutting operations with plasma torches, it happens that the torches o encounter an obstacle, which, in an extreme case,

  for rigid support, could cause damage to

  geraents. To take into account in practice such opposite conditions, it is generally ensured the ballasting of torches subjected to such conditions, when the torches are in the position of use; in general, it follows that a flexible support is preferred to a rigid support and the delays in time which are caused by the adjustments a posteriori of the torch must necessarily be taken into account.

  in the course of production.

  The object of the present invention is to provide a torch which, on the one hand, avoids, to a very large extent, being damaged, when it abuts on obstacles and, on the other hand, renders useless the settings to be post-hoc.

  the position of welding or torch cutting.

  For this purpose, the invention relates to a torch characterized in that it is fixed on the support so that it can pivot with its longitudinal axis around the support, that it can deform elastically with its longitudinal axis in each axes perpendicular to the support, by means of a body mounted on the support and that it is immobilized against a relative displacement of rotation about its longitudinal axis by means of

blocking devices.

  The advantage of the invention lies in particular in a better economy of the use of torches

welding / cutting.

  An exemplary embodiment of the invention is shown in the accompanying drawings, in which FIG. 1 is a side view of the object of the invention. FIG. 2 is a top view of the object of FIG. , Figure 3 is a sectional view, according to

A-B of Figure 1.

  A torch 10, represented diagrammatically, is guided by means of its support 12 above a

  workpiece to be welded or cut (not shown).

  The support 12 has an annular plate 14, which is fixed by means of bent parts 16, 18

  and screws 20, 22 on a cutting machine not re-

  presented. The torch 10 which projects from the orifice 15 of the annular plate 14 is surrounded

  by a sleeve 24 which comprises an annular collar 26.

  This collar 26 is supported freely on a shoulder 28 of the annular plate 14 As the sleeve 24 and thus the collar 26 are integral with the torch 10, the

  torch 10 also relies freely on the plate 14.

  As soon as the torch 10 is tilted out of its normal position, the sleeve 24 which surrounds it is also tilted. In this tilting position, a fraction of the zone of the collar 26 loses its contact with the plate.

ring 14.

  Two circular pins 30 project upwards with respect to the fixed plate 14 in the case

  general horizontally on the cutting machine.

  These pins release between them an interval in which a circular pin 32 comes horizontally projecting with respect to the collar 26 As the pins 30, 32 which cross only touch each other slightly, the torch 10 can swing in its longitudinal direction without the pins 30, 32 do not handle this movement Because the pin 32 is framed laterally by the two pins 30, regardless of the position of the torch 10, the torch-10 can not rotate about its longitudinal axis The pins 30, 32 have a projecting free length relative to the plate 14, such that, even when the torch 10 is tilted in an extreme manner with respect to its longitudinal direction or that the torch is moved to its maximum position in its

  longitudinal direction, pin 32 remains always

born between the two pins 30.

  The socket 24 has at its end

  The bushing 24 is surrounded by a spiral spring 36 between this bracket 34 and the plate 14. This spiral spring 36 is fixed on the bracket 34 and on the bracket 34. It is connected to the workpiece (part not shown). As a result, on the one hand, the torch returns back from its tilted position to its normal position because the turns of the spiral spring 36, turns which on one side are compressed and the other side, are dilated, tend to resume their normal pace

and so their normal position.

  In the case where the torch encounters an obstacle, "from the bottom" in its longitudinal direction, the bracket 34 which is fixed to the torch via

  of the bushing 24, is raised in the direction of the plate 14.

  This causes the compression of the spiral spring 36 reducing the intensity of the shock with which the torch 10 encounters for example the workpiece. By mounting the spiral spring 36, it is ensured that the torch 10 is always moved back to its normal position of welding or cutting, which it

  pushed by the side or the bottom.

  The opening 15 of the annular plate 14

  flares up cone from bottom to top, which -

  leaves an interval 40 between the lower edge 38

  of the opening 15 and the outer surface of the sleeve 14.

  This gap 40 allows the free tilting movement of the bushing 24 and thus of the torch 10, along its longitudinal axis 42. The maximum possible travel of the

  Torch 10 is determined by the size of the gap 40.

  The movement of the torch is for example caused by the fact that the torch 10 butts against an obstacle that is next to it.

  come from a movement of movement of the trolley

  torch, a moving movement of the cutting machine or a combined movement movement of the

  torch holder and cutting machine.

  Thanks to switches mounted in the interval 40 and which are implemented by corresponding amplitude displacements of the torch 10, it is possible to stop the driving motors of the torch carriage and the cutting machine in good time. using rapid-acting brakes, so that the torch 10 does not abut against the lower edge 38 It is thus avoided that the torch 10 encounters an obstacle by the side following a movement

  not damped and may be damaged.

R EV E ND C A T ION S

  i) 2 alr-eu for welding and / or cutting with su-crt roat character-54 e in that it is fixed on the sappori (12), so that it can rotate with its aIin Ia (42) around the support (12), that it can <% mer asi, ically with its longitudinal axis (42) don h axes (4 ', 46) perpendicular to the support, msen a c: rps (36) monità on the support (12) and cru 'I scic irm Li against a d Cépla-ce 7 mrent relat Lf of rota ln uc 1rde naxe logiudna u -moyen

Blcago C ixes (30, 32).

  2 ') torch according to claim 1, caractixu I Lsz (in that - - Pr (12) comprises a 1'exraert 1'exraert annular i 28' i ur ur to support. the torch (10) with the aid of a calf

  ring (26) surrounding the torch.

  2) Cha-burner according to any one of claims revendicaticn: 3 and 2, characterized in that the torch (10) asiai the suppisrt (12) via

of ressorQ (36).

  40) torch sl claim 3, characterized in this cliie the rèeEorts (36) are constituted

  by a spinnaker spring, surrounding the torch.