The objective of the present invention is to provide a machine tool control device with which chips can be reliably divided and discharged, and with which damage to a tool can be suppressed by reducing shock when the tool cuts into a workpiece. A machine tool control device 100 which controls a main axis that causes a tool T to rotate relative to a workpiece W, and which executes a cutting process by controlling a feed axis to move the tool T and the workpiece W while causing the same to oscillate relative to one another in a feed direction, is provided with an oscillation command generating unit 16 which generates an oscillation command on the basis of a predetermined oscillation condition, and a position and speed control unit 15 which controls a motor 30 that drives the feed axis, on the basis of a superimposed command generated by superimposing the oscillation command generated by the oscillation command generating unit 16 onto a position command or a position deviation, wherein the oscillation command generating unit 16 changes at least one of an oscillation command phase progression method and an oscillation command amplitude, on the basis of either an oscillation phase calculated on the basis of the predetermined oscillation condition, or time.

A pipe drilling device includes a casing having a divided structure and externally fitted to a fluid pipe in a sealed manner, a process valve including a process valve body that comes into contact with and separates from a recessed valve seat portion provided inside a neck portion of the casing, a drilling machine including a cutter that is inserted into the casing and configured for drilling the fluid pipe in an uninterrupted flow state, and a cylindrical portion that is movable to open and close an opening of the recessed valve seat portion inside the neck portion.

A pipe drilling device includes a casing having a divided structure and externally fitted to a fluid pipe in a sealed manner, a process valve including a process valve body that comes into contact with and separates from a recessed valve seat portion provided inside a neck portion of the casing, a drilling machine including a cutter that is inserted into the casing and configured for drilling the fluid pipe in an uninterrupted flow state, and a cylindrical portion that is movable to open and close an opening of the recessed valve seat portion inside the neck portion.

A power tool having a power tool housing, a motor, a tool moved relative to the housing by the motor, a fan rotated by the motor such that a fluid flow with debris generated by tool is moved into the fluid inlet by the fan and through the discharge outlet, and a filter that is removably attached to the power tool housing. The power tool housing includes a fluid inlet and a discharge outlet. The filter includes a filter media for separating the debris from the flow of fluid. The filter media defines a collection container for storing the debris. The filter also includes an opening through which the flow of fluid with the debris enters the collection container, and a valve that is moveable between a closed position, in which the opening is closed, and an open position, in which the opening is open. The valve includes a duckbill check valve.

A method for machining a workpiece is provided, wherein drilling of the workpiece and subsequent countersinking of the bore, obtained by the drilling, in the workpiece are performed by means of a drilling/countersinking tool in a machining process, wherein the drilling/countersinking tool in the machining process while being axially rotated is subjected to an axial feed movement relative to the workpiece that reaches a counterbore terminal position, and wherein the axial feed movement is superimposed by an axial vibration, wherein, when reaching a predefined frequency lowering position of the axial feed movement by the drilling/countersinking tool, the frequency of the axial vibration is lowered to a final machining frequency, and the machining process is continued at the final machining frequency as the maximum frequency of the axial vibration until the counterbore terminal position is reached.

A method for machining a workpiece is provided, wherein drilling of the workpiece and subsequent countersinking of the bore, obtained by the drilling, in the workpiece are performed by means of a drilling/countersinking tool in a machining process, wherein the drilling/countersinking tool in the machining process while being axially rotated is subjected to an axial feed movement relative to the workpiece that reaches a counterbore terminal position, and wherein the axial feed movement is superimposed by an axial vibration, wherein, when reaching a predefined frequency lowering position of the axial feed movement by the drilling/countersinking tool, the frequency of the axial vibration is lowered to a final machining frequency, and the machining process is continued at the final machining frequency as the maximum frequency of the axial vibration until the counterbore terminal position is reached.

A container assembly for retaining a drill byproduct produced when drilling into a wall, the container assembly includes a container disposed on an internal side of the wall having an internal surface and an external surface. The container assembly also includes a sleeve that is disposed about the external surface of the container, the sleeve includes one or more magnets that couple the sleeve and container to the wall and retain the drill byproduct along the internal surface.

A container assembly for retaining a drill byproduct produced when drilling into a wall, the container assembly includes a container disposed on an internal side of the wall having an internal surface and an external surface. The container assembly also includes a sleeve that is disposed about the external surface of the container, the sleeve includes one or more magnets that couple the sleeve and container to the wall and retain the drill byproduct along the internal surface.

A power tool includes a power tool housing including a fluid inlet and a discharge outlet. A motor is supported by the power tool housing. A tool is configured to be moved relative to the housing by the motor. A fan is configured to be rotated by the motor, such that a fluid flow with debris generated by movement of the tool is drawn into the fluid inlet and through the discharge outlet. A filter is removably attached to the power tool housing. The filter includes a filter media configured to separate the debris from the flow of fluid. The filter media includes a collection container configured to store the debris. The filter also includes an opening in the filter media through which the flow of fluid with the debris enters the collection container, and a valve that is moveable between a closed position and an open position.

A power tool includes a power tool housing including a fluid inlet and a discharge outlet. A motor is supported by the power tool housing. A tool is configured to be moved relative to the housing by the motor. A fan is configured to be rotated by the motor, such that a fluid flow with debris generated by movement of the tool is drawn into the fluid inlet and through the discharge outlet. A filter is removably attached to the power tool housing. The filter includes a filter media configured to separate the debris from the flow of fluid. The filter media includes a collection container configured to store the debris. The filter also includes an opening in the filter media through which the flow of fluid with the debris enters the collection container, and a valve that is moveable between a closed position and an open position.