A motorized hardware jig that allows for the changing and setting of drill guides in a matter of seconds without the need for any tools. The motorized jig receives a height for the panel on the face of a drawer and a center-to-center measurement for the hardware. The motorized jig automatically moves the drill guides to the desired position for drilling holes for the hardware.

A transmission structure of a drilling machine contains: a housing, a drive shaft, a drive gear, a guide gear, a speed change gear assembly, a driven gear assembly, and a control knob. The housing include a first accommodation groove for housing the drive shaft, a second accommodation groove for accommodating the guide shaft, a third accommodation groove for housing the speed shaft, and a fourth accommodation groove for accommodating the driven shaft. The drive gear is connected on the drive shaft, and the guide gear is coupled on the guide shaft and meshes with the drive gear. The speed change gear assembly includes a connection gear and at least two speed change gears. The driven gear assembly includes at least two driven gears corresponding to at least two speed change gears respectively. The control knob configured to drive the driven gear assembly to move upward and downward.

A workholding chuck that allows for a sizable gripping range by utilizing a rotary clamping method with dual stage motion. The dual stage rotary gripping chuck allows small diameter parts to be clamped, as well as parts that are larger than the main chuck body diameter. The dual stage motion allows resistance to be first achieved by lightly clamping on a workpiece, which is then converted to a high force-to-movement ratio. The workholding chuck employs two helical connections that allow for a large gripping diameter variation with a short amount of axial travel.

A universal rotating chuck system capable of accommodating multiple small-batch or one-off machining jobs, involving workpieces of different diameter and composition, comprises a rotating chuck having multiple jaws that may be adjusted positionally inward or outward towards the longitudinal centerline of the workpiece or removed entirely. The chuck is rotated by a dual-motor system driving an inner and outer shaft, where the inner shaft is selectively coupled to the outer shafts to rotate independently and adjust the jaws, or rotate alongside the outer shaft to rotate the chuck. In operation, the system is capable of conducting numerous machining operations independent of direct user intervention, including loading/unloading workpieces, loading/unloading tools, measuring tools and workpieces for quality control, and storage.

A method to control a power tool, especially a core drill, including a motor as the drive for the power tool, a control unit, a power display, a transmission having at least a first gear and a second gear, a first sensor to detect the rotational speed of at least one component of the transmission and a second sensor to detect the rotational speed of the motor. The method includes the following steps: ascertaining a first rotational speed of the at least one component of the transmission when the transmission has been put into a gear, ascertaining a first rotational speed of the motor when the transmission has been put into a gear, ascertaining the selection of the gear on the basis of a first prescribed ratio of the first rotational speed of the at least one component of the transmission and of the first rotational speed of the motor on the basis of a look-up table, and setting the limit value of the power display on the basis of the look-up table as a function of the gear that has been selected. A power tool for purposes of using the method.

A holder for clamping a tool includes a clamping mechanism for clamping the tool, and an exposed portion. The clamping mechanism is switchable between a clamping state and an unclamping state. The clamping state is a state in which removal of the tool from the holder is hindered. The unclamping state is a state in which removal of the tool from the holder is allowed. The exposed portion is exposed outside the holder and directly or indirectly and mechanically linked to the clamping mechanism. The exposed portion is pushed in one direction for movement to thereby switch the clamping mechanism to the unclamping state.

Methods of machining a component including multiple dissimilar materials are disclosed. One method may include making a first cut in the component to remove at least a portion of a hardest material in the component and making a second cut in the component along a second cutting-path that does not include the hardest material. The first cut may expose a cut surface in the component and the second cut may extend through the cut surface. The cuts may be made using a turning operation and different cutting tools may be used for the first and second cuts. The hardest material may have a hardness of at least 50 HRC and the remaining materials may have a hardness of at most 45 HRC. The disclosed methods may be used to form a thrust face surface in a shell and sun gear assembly to extend tool life and reduce scrap.

An apparatus reconfigures or configures a wheel associated with a train. The apparatus comprises a tool configured to engage the wheel a compound slide system for positioning the cutting tool in at least two axes. The compound slide system is controlled so that the wheel is configured in accordance with a profile. The slide system can be moved mechanically and/or pneumatically and/or can use a mechanical profile. The apparatus can have a low profile and a low weight.

The invention relates to a boring machine comprising a spindle (15) which is designed for rotationally driving a boring tool that is placed or can be placed on the spindle and which is paired together with rotational drive means that interact with a first drive motor (24) for rotational driving purposes and with adjustment drive means that interact with a second drive motor (26) for axially adjusting the spindle such that when the spindle is being rotated by the first drive motor, the spindle can be axially adjusted under the effect of the second drive motor. The rotational drive means have a rotational drive gear (38) which is connected to the spindle, and the adjustment drive means have an adjustment nut (58) which interacts with a threaded section (60) of the spindle (15) in the manner of a slide. Transmission means are integrated in the form of a transmission module for interacting with the rotational drive gear and the adjustment nut and are designed to connect to the first and the second drive motor. The transmission means have an adjustment gear (54) for meshing into a toothing of the adjustment nut (58), said adjustment gear being driven by a toothed gear assembly (46, 42) which engages onto an outer toothing (52) of the adjustment gear such that at least one first toothed gear (42a-c) of the toothed gear assembly receives a drive torque of the second drive motor, in particular the at least one first toothed gear interacts directly with a drive shaft (30) of the second drive motor (24, 24A), and at least one second toothed gear (46a-c, 46a-c) of the toothed gear assembly transmits a drive torque of the first toothed gear (26, 26k) to the outer toothing (52), in particular the at least one second toothed gear meshes directly with the first toothed gear and the outer toothing. The toothed gear assembly is held in a cage-like toothed gear support (44) such that at least the second toothed gear, preferably the first and the second toothed gear, can be released from the transmission module and replaced when disassembling the adjustment gear and/or a module which drives the rotational drive gear, in particular a toothed gear unit.

A positioning device for drilling including a positioning base which is provided with a positioning through hole, and a plurality of clamping assemblies which are provided on the positioning base and circumferentially spaced round a central axis a, as center, of the positioning through hole. Each of the clamping assemblies includes an abutting part having an adjustable distance from a central axis of the positioning through hole.