A hole inner-surface cutting apparatus includes a working head composed of a rotatable body having a cutting tool and a main body, a rotation rod for rotating the rotatable body, and a stroke rod for stroking the working head. At least three positioning mechanisms for positioning the working head along a radial direction in the penetrating hole is provided on the main body. Each of the positioning mechanisms has three sliders arranged radially, guide rollers respectively disposed on distal ends of the sliders, a piston for pressing the sliders radially outward, and a fluid pressure chamber for actuating the piston. Further provided is a controller for controlling fluid pressures in the fluid pressure chambers of the positioning mechanisms independently from each other.

A hole inner-surface cutting apparatus includes a working head composed of a rotatable body having a cutting tool and a main body, a rotation rod for rotating the rotatable body, and a stroke rod for stroking the working head. At least three positioning mechanisms for positioning the working head along a radial direction in the penetrating hole is provided on the main body. Each of the positioning mechanisms has three sliders arranged radially, guide rollers respectively disposed on distal ends of the sliders, a piston for pressing the sliders radially outward, and a fluid pressure chamber for actuating the piston. Further provided is a controller for controlling fluid pressures in the fluid pressure chambers of the positioning mechanisms independently from each other.

The disclosure relates to a machining station for machining platelike workpieces (1) by means of at least one tool (10, 13, 14). The machining station has a measuring device (16) for acquiring data relating to the position of bores, a drill (10, 13, 14) for generating bores in the workpiece (1), and a data processor (17) for processing data of the at least one measuring device (16) and/or for controlling the at least one drill (10, 13, 14). The data processor (17) is here suitable and set up for performing an adjustment between a desired drilling position and/or a desired bore depth and an actual position and/or actual depth as determined by the at least one measuring device (16) for a bore present in the workpiece (1), and adapting the drilling position and/or bore depth for generating bores by means of the at least one drill (10, 13, 14).

The disclosure relates to a machining station for machining platelike workpieces (1) by means of at least one tool (10, 13, 14). The machining station has a measuring device (16) for acquiring data relating to the position of bores, a drill (10, 13, 14) for generating bores in the workpiece (1), and a data processor (17) for processing data of the at least one measuring device (16) and/or for controlling the at least one drill (10, 13, 14). The data processor (17) is here suitable and set up for performing an adjustment between a desired drilling position and/or a desired bore depth and an actual position and/or actual depth as determined by the at least one measuring device (16) for a bore present in the workpiece (1), and adapting the drilling position and/or bore depth for generating bores by means of the at least one drill (10, 13, 14).

A BTA drilling quick-stop device (QSD) and a method, wherein the BTA drilling QSD includes a base. The base includes a hollow cavity. A side portion of the base has an opening communicating with the hollow cavity. The opening is closed by a through cover. A horizontally movable fixture is disposed in the hollow cavity. A stopper is disposed at a top portion of the base. A bottom portion of the stopper is disposed lower than a top portion of the fixture to stop the fixture from moving during processing. An elastic element is disposed between the through cover and a side portion of the fixture to push the fixture to move after processing.

A BTA drilling quick-stop device (QSD) and a method, wherein the BTA drilling QSD includes a base. The base includes a hollow cavity. A side portion of the base has an opening communicating with the hollow cavity. The opening is closed by a through cover. A horizontally movable fixture is disposed in the hollow cavity. A stopper is disposed at a top portion of the base. A bottom portion of the stopper is disposed lower than a top portion of the fixture to stop the fixture from moving during processing. An elastic element is disposed between the through cover and a side portion of the fixture to push the fixture to move after processing.

A machining apparatus capable of drilling a long workpiece from an end surface of a diameter-expanded part and drilling a short workpiece from an end surface of a stem part without inverting orientation of a collet and a sleeve in a chuck device is provided, as well as a method of using the same, and a chuck device for the machining apparatus. A deep hole drilling machine and a chuck device are included with a sleeve and a collet included inside the chuck device, and the collet and the sleeve each have both end openings opened toward the outside of the chuck device. The opening on one end side of each of the sleeve and the collet is directed to the deep hole drilling machine, and the collet is disposed on the other end side of the sleeve.

A combined through-hole processing machine includes a working bed provided with two opposite and parallel slide rails on it. A deep-hole processing mechanism is provided on the working bed and includes a pair of sub-spindle heads used to clamp a deep-hole tool respectively to conduct the deep-hole processing on workpiece. A U axis feed unit is provided between the two slide rails and used to provide the feed for the movement in the long axis direction parallel to the two slide rails. A deburring mechanism is provided on the working bed and located at one end side of the deep-hole processing mechanism, which includes the corresponding two chucks and two tailstocks where the chucks are used to clamp the workpiece with the deep-hole processing already fulfilled on the deep-hole processing mechanism respectively and the tailstocks are provided to arrange the deburring tools respectively to conduct the deep-hole deburring action.

The invention relates to a single-lip deep hole drill comprising a drill head, wherein the drill head has a drill diameter, a blade and a channel for chip removal, wherein the blade extends outwards from a rotational axis up to the perimeter of the drill head, wherein the blade has a cutting surface and wherein the channel is bordered by a chip forming surface, wherein the chip forming surface has two sections such that a first section of the chip forming surface extends in the radial direction from the rotational axis up to a first diameter, a second section of the chip forming surface connects to the first section in the radial direction, the first section is positioned above the cutting surface, and the second section is positioned nearer to the cutting surface than the first section.

The invention relates to a single-lip deep hole drill comprising a drill head, wherein the drill head has a drill diameter, a blade and a channel for chip removal, wherein the blade extends outwards from a rotational axis up to the perimeter of the drill head, wherein the blade has a cutting surface and wherein the channel is bordered by a chip forming surface, wherein the chip forming surface has two sections such that a first section of the chip forming surface extends in the radial direction from the rotational axis up to a first diameter, a second section of the chip forming surface connects to the first section in the radial direction, the first section is positioned above the cutting surface, and the second section is positioned nearer to the cutting surface than the first section.