A control device for controlling a machine tool so as to drill a workpiece based on a machining program, includes a motor control unit configured to, when drilling the workpiece, control an axis feed motor of the machine tool so that the rotary tool of the machine tool is axially moved by intermittently decelerated feed in which the feed rate of the rotary tool is alternately switched between a first feed rate and a second feed rate that is lower than the first feed rate, under the condition in which the relational equations (1) and (5) are satisfied.

A push stop (100) for use in a slot disposed in a worksurface includes: a body (102), a resilient element (104), and an anchor assembly (106). The anchor assembly is configured to anchor a first portion (110) of the body in a fixed anchored position within the slot. A resilient force exerted by the resilient element urges a second portion (114) of the body into a fixed raised position in which the second portion protrudes beyond the worksurface. When an external force sufficient to overcome the resilient force is applied, the resilient element yields until none of the second portion protrudes beyond the worksurface.

A push stop (100) for use in a slot disposed in a worksurface includes: a body (102), a resilient element (104), and an anchor assembly (106). The anchor assembly is configured to anchor a first portion (110) of the body in a fixed anchored position within the slot. A resilient force exerted by the resilient element urges a second portion (114) of the body into a fixed raised position in which the second portion protrudes beyond the worksurface. When an external force sufficient to overcome the resilient force is applied, the resilient element yields until none of the second portion protrudes beyond the worksurface.

A workpiece change for use in a machine tool that comprises a tool spindle for clamping tools for machining workpieces, comprises two wheels arranged parallel to one another and rotatable about an axis of rotation into at least two prominent angular positions. Two swivel tables for clamping workpieces are arranged between the wheels and are each mounted on the wheels to swivel about a swivel axis which runs parallel to the axis of rotation. In each prominent angular position, one of the swivel tables is located in its working position in which clamped workpieces can be machined with the tools. Both wheels are supported at their rim.

A workpiece change for use in a machine tool that comprises a tool spindle for clamping tools for machining workpieces, comprises two wheels arranged parallel to one another and rotatable about an axis of rotation into at least two prominent angular positions. Two swivel tables for clamping workpieces are arranged between the wheels and are each mounted on the wheels to swivel about a swivel axis which runs parallel to the axis of rotation. In each prominent angular position, one of the swivel tables is located in its working position in which clamped workpieces can be machined with the tools. Both wheels are supported at their rim.

A tool support structure includes a base; a tool rail that extends in an axial direction; a first mounting portion that is connected to the base; a second mounting portion that is connected to a first end of the tool rail and releasably connectable to the first mounting portion; a support receiver that is connected to the base, the support receiver has a housing, a clamp member, and a locking member; and a support member that has a first portion and a second portion, wherein the second portion and at least part of the first portion are configured to enter an axial open end of the housing of the support receiver and a clamp member of the support receiver is pivoted into engagement with the support member by a locking member of the support to restrain motion of the support member with respect to the support receiver.

A machine tool includes a rotation indexing device. The rotation indexing device includes a frame accommodates a rotary shaft, a drive motor rotationally drives the rotary shaft, a drive transmission mechanism accommodated in a space inside the frame, and a detection device. The drive transmission mechanism includes a gear mechanism, and the space includes one or more storage parts for storing lubricating oil. The detection device detects a height position of an oil level of the lubricating oil, and is provided on a one-to-one basis with respect to a detection target storage part, which is set as a detection target, of the one or more storage parts.

A machine tool includes a rotation indexing device. The rotation indexing device includes a frame accommodates a rotary shaft, a drive motor rotationally drives the rotary shaft, a drive transmission mechanism accommodated in a space inside the frame, and a detection device. The drive transmission mechanism includes a gear mechanism, and the space includes one or more storage parts for storing lubricating oil. The detection device detects a height position of an oil level of the lubricating oil, and is provided on a one-to-one basis with respect to a detection target storage part, which is set as a detection target, of the one or more storage parts.

An apparatus and method for supporting an object. In one illustrative embodiment, an apparatus may comprise a support structure, a positioning system, and a retention system. The positioning system may be associated with the support structure and configured to position the support structure with respect to a number of linear axes. The retention system may be associated with the support structure. The retention system may be configured to retain a portion of an object and move the portion of the object towards a platform such that the portion of the object substantially conforms to a shape of the platform.

An apparatus and method for supporting an object. In one illustrative embodiment, an apparatus may comprise a support structure, a positioning system, and a retention system. The positioning system may be associated with the support structure and configured to position the support structure with respect to a number of linear axes. The retention system may be associated with the support structure. The retention system may be configured to retain a portion of an object and move the portion of the object towards a platform such that the portion of the object substantially conforms to a shape of the platform.