In order to mill, drill, saw or the like in the offshore sector, subsea processing machines are used which comprise a tool holder with a change hub for receiving at least one rotary tool, such as for instance a milling cutter, saw, drill or the like. The tool holder preferably has a carrier body for receiving the tool hub, wherein the latter comprises a hub flange for receiving tools. The preferably centric hub ring of the change hub can be arranged on the carrier body of the tool holder and can be connected to the tool holder in such a manner as to be able to be detached and clamped by means of at least one locking apparatus.

A surgical grip for receiving a handpiece shaft for conjoint rotation therewith and/or for receiving a medical tool in such a way as to transmit torque, includes a carrier sleeve on which at least one coupling component provided for coupling the handpiece shaft is attached such that the at least one coupling component can be brought to a coupled position and to an uncoupled position in the operating state, wherein the at least one coupling component can be brought into contact with an activation unit which is arranged between the carrier sleeve and to an outer actuation sleeve, wherein a rotation securing unit present inside the actuation sleeve acts on the activation unit in a spring-biased manner in the operating state such that the activation unit is held secure against rotation relative to the carrier sleeve.

In order to mill, drill, saw or the like in the offshore sector, subsea processing machines are used which comprise a tool holder with a change hub for receiving at least one rotary tool, such as for instance a milling cutter, saw, drill or the like. The tool holder preferably has a carrier body for receiving the tool hub, wherein the latter comprises a hub flange for receiving tools. The preferably centric hub ring of the change hub can be arranged on the carrier body of the tool holder and can be connected to the tool holder in such a manner as to be able to be detached and clamped by means of at least one locking apparatus.

A holding attachment includes a holding portion with a round or substantially round columnar hole shape in which a held portion of a material before cutting is inserted and a mounting portion that is mounted on a work mount of a cutting machine. The mounting portion includes at least one pin that is inserted to at least one pin insertion hole provided in the work mount and at least one engagement portion that is engaged with at least one rotation stopper provided in the work mount. A position reference portion of the material before cutting is recessed from a round or substantially round columnar outer peripheral surface of the held portion. The holding portion includes a fitting portion fit to the position reference portion of the material before cutting.

A quick change tool includes a tool element, an elongate body having a drive shaft and attaching means for attaching the tool element to the body, and a receiving element for attaching to the tool element. The receiving element includes a through-hole for receiving the body by sliding through the receiving element in the longitudinal direction of the body. The receiving element is configured to co-act with the attaching means to lock the tool element relative to the body at least in an axial direction of the drive shaft. The attaching means includes a resiliently movable locking pin arranged spring-mounted in the body. The receiving element comprises a locking hole configured to receive the locking pin therein in a snapping manner. A pin guiding groove extends between a receiving opening of the through-hole and the locking hole for guiding the locking pin from the receiving opening to the locking hole.

A surgical grip for receiving a handpiece shaft for conjoint rotation therewith and/or for receiving a medical tool in such a way as to transmit torque, includes a carrier sleeve on which at least one coupling component provided for coupling the handpiece shaft is attached such that the at least one coupling component can be brought to a coupled position and to an uncoupled position in the operating state, wherein the at least one coupling component can be brought into contact with an activation unit which is arranged between the carrier sleeve and an outer actuation sleeve, wherein a rotation securing unit present inside the actuation sleeve acts on the activation unit in a spring-biased manner in the operating state such that the activation unit is held secure against rotation relative to the carrier sleeve.

A quick change tool includes a tool element, an elongate body having a drive shaft and attaching means for attaching the tool element to the body, and a receiving element for attaching to the tool element. The receiving element includes a through-hole for receiving the body by sliding through the receiving element in the longitudinal direction of the body. The receiving element is configured to co-act with the attaching means to lock the tool element relative to the body at least in an axial direction of the drive shaft. The attaching means includes a resiliently movable locking pin arranged spring-mounted in the body. The receiving element comprises a locking hole configured to receive the locking pin therein in a snapping manner. A pin guiding groove extends between a receiving opening of the through-hole and the locking hole for guiding the locking pin from the receiving opening to the locking hole.

The present invention relates to the field of industrial cutting machines and cutting tools therefore. In one particular aspect the present invention relates to a method and system for quickly changing cutting tools in computer controlled cutting machines, in a first aspect of embodiments described herein there is provided a mechanism for retaining a cutting tool of a cutting machine, the mechanism having a longitudinal axis substantially perpendicular to a cutting surface, the mechanism comprising a mount associated with the cutting machine, a holder for a cutting tool, a retaining device for removably attaching the holder to the mouth, wherein the retaining device is adapted to bias the holder in the direction of the longitudinal axis.

A holding pin protrudes from a first opening of a through hole, enters a hole formed in a tip tool, and holds the tip tool. A spring member energizes the holding pin. A bush is press-fitted in the through hole and supports the spring member at a first end portion thereof. An inner diameter of a second opening of the through hole is formed larger than an outer diameter of the bush. As a result of this, a second end portion of the bush is arranged to avoid contact with the second opening of the through hole.

A coupling mechanism designed to removably attach a reamer to the distal end of a spindle or shaft is disclosed. The coupling comprises a collar having an annular sidewall that defines a collar throughbore, the collar annular sidewall comprising a plurality of spaced part first slots that at least partially extend through the sidewall and a shank disposed within the collar throughbore. The shank is constructed with a shank annular sidewall in which a plurality of spaced apart second slots at least partially extend therethrough. A bias member that provides a bias force in a distal direction that acts on the collar is incorporated within the mechanism. The collar is capable of sliding in an axial direction such that the first and second slots become aligned to secure the cross bar of a reamer therein.