Fastening an object onto a lathe, such that the location of the centre of rotation of the object may be adjusted relative to the centre of the lathe axis, wherein the centre of rotation of the object relative to the centre of the lathe may be displaced steplessly and biaxially, according to a predetermined calculation, without removing the object from the chuck.

Fastening an object onto a lathe, such that the location of the centre of rotation of the object may be adjusted relative to the centre of the lathe axis, wherein the centre of rotation of the object relative to the centre of the lathe may be displaced steplessly and biaxially, according to a predetermined calculation, without removing the object from the chuck.

A driving adapter which is configured to be applied to a driving head of a rotary tool is provided. The driving adapter includes: a main body, including a socket portion, an insertion portion connected with the socket portion and a projection connected with the insertion portion in an axial direction, the socket portion including a connection hole which is quadrangular and extends along the axial direction, the insertion portion being a quadrangular post and extending along the axial direction, a diametric dimension of the insertion portion being different from a diametric dimension of the connection hole, the projection including an annular groove around the axial direction; an elastic retainer, being non-closed, disposed within and around the annular groove; and a cushion, disposed within the annular groove, being radially abuttable against and between the projection and the elastic retainer.

A power tool includes a housing, a motor supported by the housing, and an output spindle rotatably supported relative to the housing about an axis. The motor is operable to drive the output spindle about the axis. The power tool includes a spindle lock assembly between the motor and the output spindle. The spindle lock assembly is adjustable between an unlocked state in which the output spindle is rotatable relative to the housing about the axis and a locked state in which the output spindle is rotationally fixed relative to the housing. The spindle lock assembly includes a first resilient member, positioned between the housing and the output spindle. The first resilient member is configured to at least partially absorb a torque impulse from the output spindle when rotating in a first direction and when the spindle lock assembly transitions from the unlocked state to the locked state.

A power tool includes a housing, a motor supported by the housing, and an output spindle rotatably supported relative to the housing about an axis. The motor is operable to drive the output spindle about the axis. The power tool includes a spindle lock assembly between the motor and the output spindle. The spindle lock assembly is adjustable between an unlocked state in which the output spindle is rotatable relative to the housing about the axis and a locked state in which the output spindle is rotationally fixed relative to the housing. The spindle lock assembly includes a first resilient member, positioned between the housing and the output spindle. The first resilient member is configured to at least partially absorb a torque impulse from the output spindle when rotating in a first direction and when the spindle lock assembly transitions from the unlocked state to the locked state.

The present invention relates to an alignment device (100) for adjusting a workpiece (400) on a machine table (300) of a numerically controlled machine tool (1000), the alignment device (100) comprises: a lower plate (20) which can be mounted on the machine table (300) of the machine tool (1000), an upper plate (10) which is movably arranged on the lower plate (20), on the upper side of which a workpiece carrier (200) can be mounted, an adjusting mechanism which is arranged between the lower plate (20) and the upper plate (10) for adjusting the relative position of the upper plate (10) to the lower plate (20), and a locking mechanism for securing the relative position of the upper plate (10) to the lower plate (20).

A device for mechanically processing a workpiece is provided. The device includes a rotating device and a holding adapter which are mechanically intercoupled such that the rotating device generates a rotation of the holding adapter about a rotation axis, while the holding adapter holds a clamping part for the mechanical treatment of the workpiece such that the holding adapter rotation axis and a longitudinal axis of the clamping part enclose an angle of more than zero degrees.

A device for mechanically processing a workpiece is provided. The device includes a rotating device and a holding adapter which are mechanically intercoupled such that the rotating device generates a rotation of the holding adapter about a rotation axis, while the holding adapter holds a clamping part for the mechanical treatment of the workpiece such that the holding adapter rotation axis and a longitudinal axis of the clamping part enclose an angle of more than zero degrees.

An adaptive precision chuck for a precision/ultraprecision machining system is described. The chuck (200) defining a mount for receiving a workpiece (300) wherein, when in use, the centre of the mount is configured to be substantially concentric with an axis of rotation (214) of the machining system, the chuck (200) further including jaws (210) about the mount and a plurality of compliant flexures (203-206) configured, upon application of rotational forces by the machining system to the chuck about the axis of rotation (214), to engage the jaws (210) upon a workpiece (300) in the mount.

The present disclosure improves the accuracy of matching the center of the workpiece with the rotation center of the chuck. It provides a chuck correction method for a chuck including a body, a plunger, and jaws, the body including a rear body and a front body provided in a front side of the rear body, the plunger provided inside the body and configured to move along an axis of the body, and the jaws each configured to move in a radial direction of the axis while guided by the front body along when the plunger moves, the chuck correction method including: a correction step including moving the front body in the radial direction of the axis with a position of the rear body keeping with respect to the axis in a state that a workpiece is clamped in the jaws.