An electric tool includes a housing, a motor, a power output assembly, and a switching member. The housing is provided with a first air outlet and a second air outlet. The power output assembly is connected to the motor. The switching member is capable of rotating in the housing, and the switching member is provided with a third air outlet and a fourth air outlet. The switching member is capable of rotating to a first position and a second position in the housing. When the switching member rotates to the first position, the first air outlet is in communication with the third air outlet and the fourth air outlet is closed by the housing. When the switching member rotates to the second position, the second air outlet is in communication with the fourth air outlet and the third air outlet is closed by the housing.

Provided is a lathe capable of shortening the spindle. The lathe comprises a spindle, a spindle support which supports the spindle through a bearing on an outer side of the spindle, a collet disposed on a front end of the spindle, an inner ring holder provided on the spindle to hold a front of an inner ring of the bearing, an outer ring holder provided on the spindle support to hold a front of an outer ring of the bearing, a cap screwed into the spindle in front of the inner ring holder, and a cover detachably provided on the spindle support side. The cover has an inner circumferential surface facing an outer circumferential surface of the cap. A first air purging unit is provided between the inner circumferential surface of the cover and the outer circumferential surface of the cap.

A machine tool which removal-machines a workpiece by a tool includes an in-machine robot provided in a machining chamber, and a cleaning mechanism that cleans the in-machine robot by removing an adhering substance adhering to the in-machine robot. When the in-machine robot is cleaned, the in-machine robot moves relative to the cleaning mechanism and positions in proximity to the cleaning mechanism.

The disclosure discloses an auxiliary frame cleaning device which includes an upper working station and a lower working station, the upper working station is used for finishing the processes of loading, unloading and drying an auxiliary frame; the lower working station is used for finishing the process of cleaning the auxiliary frame; the upper working station consists of an auxiliary frame loading system, a vehicle body mounting hole sealing and adjusting system and an air supply system; the lower working station structure and the upper working station structure are consistent and symmetrically distributed.

An air-blowing method includes the steps of blowing, inside a machine tool, air onto a workpiece after machining, issuing a workpiece pick-up advance notice signal for notifying beforehand of pick-up of the workpiece by a robot or a worker, on the basis of a task state of the robot or an operation of the worker, and calculating the additional time for air blow on the basis of a time required by the robot or the worker to arrive at a workpiece pick-up position in front of the machine tool after the workpiece pick-up advance notice signal is issued, where air blow is extended by just the additional time in the step of blowing air.

A chip evacuator tool includes at least one hook member configured to grab and remove chips from a machined part. The chip evacuator tool is attached to and rotates with a spindle of a machine tool, which is controlled using a computer of a CNC machine. In operation the location of the chip evacuator tool remains stationary while both the chip evacuator tool and the machined part rotate in the same direction, resulting in efficient removal of chips from the machined part.

The present disclosure is directed to calibrating position detection for a tool. The tool can use a sensor to detect a first value of a parameter. The tool can use a motor to extend the working member of the tool towards a working surface. The tool can include a base. The tool can detect, with the working member in contact with the working service, a second value of the parameter. The tool can determine a z-axis position of the working member relative to the working surface.

A machine tool includes a spindle configured to hold a tool, a tool magazine configured to hold a plurality of tools and to exchange the tools with the spindle, and a cleaning mechanism configured to remove adhering objects adhered to the tool magazine by spraying fluid to the tool magazine.

A machine tool includes a spindle including a tool insertion portion having a shape of an opening into which a shank of a tool is inserted and configured to attach the tool thereto, a tool change unit configured to change the tool attached to the spindle while gripping the tool, an air supply unit configured to supply air to a gap between the tool insertion portion and the shank of the tool when the tool change unit changes the tool, and a controller configured to control driving of at least any one of the spindle and the tool change unit to allow the tool and the tool insertion portion to reciprocate relative to each other in a predetermined direction with the shank of the tool inserted into the tool insertion portion and with a gap provided between the tool insertion portion and the shank of the tool.

In a spindle device, a movable member is provided on a cover member, which is attached to a spindle housing and covers the outer peripheral surface of a chuck portion which is a disk-shaped rotating member. The movable member is moved by a gas flowing through a flow passage formed in the cover member and thereby brought into contact with the chuck portion. The movable member is electrically connected to a ground.