A tool drive with spindle shaft for a chip-forming machining includes at least one electromagnetic axial actuator and a control and/or regulation apparatus for the operation of the axial actuator for changing the position of the spindle shaft along the longitudinal axis, wherein the control and/or regulation apparatus is designed to drive the axial actuator for the generation of microvibration movement of the spindle shaft, independently of and superimposable on a feed movement, in order to affect the chip size and chip shape of the removed material, wherein at least one axial magnetic bearing and/or one linear motor is provided as at least part of the axial actuator, wherein the regulation and/or control apparatus includes a memory unit and/or a function generation unit, and is configured to specify setpoint values of the oscillation curve of the microvibration movement depending on geometrical and or physical data of the workpiece and/or process variables that are measured or determined indirectly and/or control inputs, so that the control and/or regulation apparatus is configured to adjust an axial microvibration movement of the spindle shaft, independently of and superimposed on a feed movement, in such a way as to affect the chip size and chip shape of the removed material created when drilling.

A drilling machine, in particular a magnetic core drilling machine. The drilling machine having a magnetic base to detachably secure the drilling machine to a surface. A drive motor is arranged in a housing and has a rotor shaft with a rotor shaft longitudinal axis that is connected in a power-transmitting manner via a gear mechanism to a tool spindle with a spindle longitudinal axis. A tool holder is connected to the tool spindle to receive a drilling tool. The spindle longitudinal axis is aligned substantially parallel to the longitudinal axis of the rotor shaft, and the tool spindle is axially adjusted along the longitudinal axis of the spindle relative to the drive motor and the magnetic base.

An outer rotor motor direct-drive drilling or milling machine, including a machine base, a frame, a mechanical driving component and an electrical control box, component. The frame is installed on the machine base, a mechanical transmission box component is installed on the frame, the electrical control box component is located on the top of the frame. A mechanical driving component includes an mechanical execution component and a lifting mechanism, the mechanical execution component is composed of a hollow shaft outer rotor motor and an output shaft assembly. The output shaft of the output shaft assembly and the hollow shaft of the outer rotor motor are fitted in the form of a key or a spline. This form of cooperation chooses the fit forms that can transmit the speed and torque of the motor and can move the output shaft axially.

An outer rotor motor direct-drive drilling or milling machine, including a machine base, a frame, a mechanical driving component and an electrical control box, component. The frame is installed on the machine base, a mechanical transmission box component is installed on the frame, the electrical control box component is located on the top of the frame. A mechanical driving component includes an mechanical execution component and a lifting mechanism, the mechanical execution component is composed of a hollow shaft outer rotor motor and an output shaft assembly. The output shaft of the output shaft assembly and the hollow shaft of the outer rotor motor are fitted in the form of a key or a spline. This form of cooperation chooses the fit forms that can transmit the speed and torque of the motor and can move the output shaft axially.

According to one implementation, a tool feeding mechanism for a handheld tool rotating device, having a holder and a first air motor, includes a coupler, a fixing member, a moving mechanism and a second air motor. The holder chucks and holds a rotating tool. The first air motor rotates the holder. The tool feeding mechanism is attached to the tool rotating device. The coupler is attached to the tool rotating device. The fixing member is attached directly or indirectly to a workpiece of hole processing using the rotating tool. The moving mechanism moves the coupler relatively to the fixing member in a tool axis direction. The second air motor powers the moving mechanism.

According to one implementation, a tool feeding mechanism for a handheld tool rotating device, having a holder and a first air motor, includes a coupler, a fixing member, a moving mechanism and a second air motor. The holder chucks and holds a rotating tool. The first air motor rotates the holder. The tool feeding mechanism is attached to the tool rotating device. The coupler is attached to the tool rotating device. The fixing member is attached directly or indirectly to a workpiece of hole processing using the rotating tool. The moving mechanism moves the coupler relatively to the fixing member in a tool axis direction. The second air motor powers the moving mechanism.

In one aspect, a swiss-type machine tool is provided that includes a workpiece holding shaft, a workpiece supporting shaft, and a tool holder associated with the workpiece supporting shaft for holding at least one tool. The machine tool includes a drive operable to rotate the workpiece holding shaft and the workpiece supporting shaft around an axis. The workpiece holding shaft has a work holder configured to secure a workpiece to the workpiece holding shaft. The workpiece holding shaft is axially shiftable relative to the workpiece supporting shaft to adjust a position of the workpiece relative to the workpiece supporting shaft. The machine tool further includes a removable workpiece support, such as a guide bushing, configured to be releasably connected to the workpiece supporting shaft and rotate therewith. The workpiece support slidably contacts the workpiece and permits axial movement of the workpiece relative to the workpiece support.

In one aspect, a swiss-type machine tool is provided that includes a workpiece holding shaft, a workpiece supporting shaft, and a tool holder associated with the workpiece supporting shaft for holding at least one tool. The machine tool includes a drive operable to rotate the workpiece holding shaft and the workpiece supporting shaft around an axis. The workpiece holding shaft has a work holder configured to secure a workpiece to the workpiece holding shaft. The workpiece holding shaft is axially shiftable relative to the workpiece supporting shaft to adjust a position of the workpiece relative to the workpiece supporting shaft. The machine tool further includes a removable workpiece support, such as a guide bushing, configured to be releasably connected to the workpiece supporting shaft and rotate therewith. The workpiece support slidably contacts the workpiece and permits axial movement of the workpiece relative to the workpiece support.

An outer rotor motor direct-drive drilling or milling machine, including a machine base, a frame, a mechanical driving component and an electrical control box component. The frame is installed on the machine base, a mechanical transmission box component is installed on the frame, the electrical control box component is located on the top of the frame. A mechanical driving component includes an mechanical execution component and a lifting mechanism, the mechanical execution component is composed of a hollow shaft outer rotor motor and an output shaft assembly. The output shaft of the output shaft assembly and the hollow shaft of the outer rotor motor are fitted in the form of a key or a spline. This form of cooperation chooses the fit forms that can transmit the speed and torque of the motor and can move the output shaft axially.

An outer rotor motor direct-drive drilling or milling machine, including a machine base, a frame, a mechanical driving component and an electrical control box component. The frame is installed on the machine base, a mechanical transmission box component is installed on the frame, the electrical control box component is located on the top of the frame. A mechanical driving component includes an mechanical execution component and a lifting mechanism, the mechanical execution component is composed of a hollow shaft outer rotor motor and an output shaft assembly. The output shaft of the output shaft assembly and the hollow shaft of the outer rotor motor are fitted in the form of a key or a spline. This form of cooperation chooses the fit forms that can transmit the speed and torque of the motor and can move the output shaft axially.