Arc working torch and machine, and cartridge for said torch
First Claim
1. Arc torch comprising a torch body having an axis, an interchangeable cartridge comprising an electrode and a nozzle, and connecting means between the body and the cartridge comprising means for inserting the cartridge in the body by a purely rectilinear movement to a final position of the cartridge in the body, and means for locking the cartridge in said final position in the body, the torch body including a cage and the locking means comprising at least one ball retained in the cage, a groove in the cartridge and means for selectively biasing said at least one ball in to said groove when said cartridge is in said final position.
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Accused Products
Abstract
Arc torch for plasma arc cutting or welding comprising an interchangeable cartridge comprising an electrode and a nozzle, and connecting elements between the cartridge and the body of the arc torch to axially insert and remove the cartridge by a purely rectilinear movement. The arc torch can be used as part of a machine comprising a station for extracting used cartridges and a station for loading new cartridges into the arc torch.
45 Citations
14 Claims
- 1. Arc torch comprising a torch body having an axis, an interchangeable cartridge comprising an electrode and a nozzle, and connecting means between the body and the cartridge comprising means for inserting the cartridge in the body by a purely rectilinear movement to a final position of the cartridge in the body, and means for locking the cartridge in said final position in the body, the torch body including a cage and the locking means comprising at least one ball retained in the cage, a groove in the cartridge and means for selectively biasing said at least one ball in to said groove when said cartridge is in said final position.
- 6. Arc torch comprising a torch body having an axis, an interchangeable cartridge comprising an electrode and a nozzle, and connecting means between the body and the cartridge comprising means for axially inserting the cartridge in the body and means for locking the cartridge in position in the body, wherein the electrode and the nozzle are mounted to be mutually axially movable, and the torch body comprises means for biasing one of two elements consisting of the electrode and the nozzle in a given direction, and return means for returning said one of two elements consisting of the electrode and the nozzle in a direction opposed to said given direction.
- 9. Arc torch comprising a torch body having an axis, an interchangeable cartridge comprising an electrode and a nozzle, connecting means between the body and the cartridge comprising means for axially inserting the cartridge in the body and means for locking the cartridge in position in the body, and an insulator through which the electrode extends and on which insulator the nozzle is fixed, the electrode having a passage supplied with plasma-producing gas and communicating with a chamber defined between the electrode and the nozzle.
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12. Machine for working with an arc, comprising an arc torch and means for selectively positioning the torch, the torch comprising a torch body having an axis, an interchangeable cartridge comprising an electrode and a nozzle, and connecting means between the body and the cartridge comprising means for axially inserting the cartridge in the body and means for locking the cartridge in position in the body;
- said machine further comprising a station for extracting used cartridges and a station for loading new cartridges.
- View Dependent Claims (13, 14)
Specification