A tool presetting and/or tool measuring apparatus device includes a carrier unit and a spindle unit, in particular motor spindle unit, which is supported by the carrier unit, which is at least configured for a rotation of an object inserted in the spindle unit, in particular a tool and/or a tool holder, around a spindle axis of the spindle unit and which comprises at least one drive unit for generating the rotation movement of the object, wherein the spindle unit includes a coupling unit which is configured, in particular for the purpose of changing a maximally achievable spindle torque, to drive the spindle unit in at least two differing modes.

A dust collecting system includes a power tool and a dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The dust collector is configured to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a first control device configured to control a rotation speed of the second motor according to a driving state of the power tool.

The present invention provides, in an embodiment, a gear-shifting structure of power equipment, the gear-shifting structure comprising: first and second gears having shafts concentric with a first shaft, respectively, the first and second gears being positioned at different locations along the axial direction of the first shaft, the first and second gears having protrusions formed thereon, respectively, and the first and second gears freely rotating with regard to the first shaft; a clutch disposed concentrically with the first shaft between the first and second gears, the clutch being spline-coupled to the first shaft, and the clutch having engaging members formed thereon so as to protrude toward the first and second gears, respectively; an adjustment member configured to move the clutch toward the first gear or the second gear; a second shaft; and third and fourth gears having shafts concentric with the second shaft, respectively, the third and fourth gears being disposed to engage with the first and second gears and to rotate together with the second shaft. The engaging members of the clutch engage with the protrusion of the first gear or the second gear by means of the adjustment member.

A tool presetting and/or tool measuring apparatus device includes a carrier unit and a spindle unit, in particular motor spindle unit, which is supported by the carrier unit, which is at least configured for a rotation of an object inserted in the spindle unit, in particular a tool and/or a tool holder, around a spindle axis of the spindle unit and which comprises at least one drive unit for generating the rotation movement of the object the spindle unit includes a coupling unit which is configured, in particular for the purpose of changing a maximally achievable spindle torque, to drive the spindle unit in at least two differing modes.

The present disclosure relates to an apparatus for operating a main shaft of a machine tool, the apparatus including: an input unit configured to transmit power for operating the main shaft; an output unit disposed in parallel with the input unit and configured to operate the main shaft with the power from the input unit; and a transmission unit disposed in parallel with the input unit and the output unit so as to be capable of rectilinearly reciprocating between the input unit and the output unit and configured to transmit the power from the input unit to the output unit, wherein the main shaft is capable of operating in a high-speed mode, a low-speed mode, or a C-axis mode in accordance with the rectilinear reciprocation of the transmission unit.

A dust collecting system includes a power tool and a dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The dust collector is configured to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a first control device configured to control a rotation speed of the second motor according to a driving state of the power tool.

A positive feed tool includes a motor, a power supply coupled to the motor to power the motor, a gear head and a spindle. The gear head is coupled to the motor and operated responsive to powering of the motor. The gear head includes a drive assembly and a feed assembly. The spindle is coupled to the gear head to enable the spindle to be selectively driven rotationally and fed axially based on operation of the drive assembly and the feed assembly, respectively. The feed assembly includes a feed rate oscillator having a spindle feed gear coupled to a differential feed gear. The spindle feed gear is coupled to rotate the spindle to selectively axially feed the spindle. The differential feed gear is selectively coupled to an input shaft turned by the motor. The spindle feed gear or the differential feed gear has a variable pitch diameter.

The present disclosure relates to an apparatus for operating a main shaft of a machine tool, the apparatus including: an input unit configured to transmit power for operating the main shaft; an output unit disposed in parallel with the input unit and configured to operate the main shaft with the power from the input unit; and a transmission unit disposed in parallel with the input unit and the output unit so as to be capable of rectilinearly reciprocating between the input unit and the output unit and configured to transmit the power from the input unit to the output unit, wherein the main shaft is capable of operating in a high-speed mode, a low-speed mode, or a C-axis mode in accordance with the rectilinear reciprocation of the transmission unit.

A positive feed tool may include a motor, a gear head and a spindle. The gear head may be operably coupled to the motor and may include a drive assembly and a feed assembly. The spindle may be operably coupled to the gear head and may be selectively driven rotationally and fed axially based on operation of the drive assembly and the feed assembly, respectively. The feed assembly may include a feed rate oscillator having a fixed cam and a movable cam operably coupled to each other via a plurality of rolling elements to oscillate between a maximum width and a minimum width of the feed rate oscillator based on a position of the movable cam. The rolling elements alternate between a first state in which at least some of the rolling elements are unloaded and a second state in which all of the rolling elements are loaded.

A positive feed tool may include a motor, a power supply operably coupled to the motor to power the motor, a gear head and a spindle. The gear head may be operably coupled to the motor to be operated responsive to powering of the motor. The gear head may include a drive assembly and a feed assembly. The spindle may be operably coupled to the gear head to enable the spindle to be selectively driven rotationally and fed axially based on operation of the drive assembly and the feed assembly, respectively. The feed assembly may include a feed rate oscillator having a fixed cam and a movable cam operably coupled to each other via a plurality of rolling elements to oscillate between a maximum width and a minimum width of the feed rate oscillator based on a position of the movable cam. The rolling elements alternate between a first state in which at least some of the rolling elements are unloaded and a second state in which all of the rolling elements are loaded.