A dust collection assembly for a computer numerical control (CNC) cutting machine includes an adapter configured to couple to an arm of the CNC cutting machine and a head telescopically coupled to the adapter by a plurality of nested members. The CNC cutting machine includes the arm supporting a spindle and a tool holder coupled for co-rotation with the spindle. Each of the plurality of nested members are collapsible relative to each other. The head is movable between an extended position in which the nested members are configured to surround the tool holder and a tool bit, and a retracted position in which at least some of the nested members are telescopically received in the adapter. The head defines an inlet fluidly connected to the plurality of nested members when the head is at least in the extended position. The inlet is configured to fluidly connect to a vacuum.

A telescopic cover for covering a linear motion mechanism in which a movable part is driven in a horizontal direction. The telescopic cover includes a plurality of cover pieces arranged in a nested manner and supported in a movable manner in a driving direction of the movable part. Of two internally and externally adjoining cover pieces, an outer cover piece has a wiper for wiping an outer surface of an inner cover piece. The inner cover piece has a weir part standing upright from the outer surface thereof toward an inner surface of the outer cover piece at an edge of an area constantly overlapping the outer cover piece, and a cutaway part formed by cutting away at least a portion of the weir part or the area to communicate between an inside and an outside of the inner cover piece.

A machine tool includes a bed that includes a guide unit, a first structure and a second structure that are each mounted over the bed, a first drive unit that moves the first structure along the guide unit, and a protector that covers at least part of the first drive unit. The protector is extendable and retractable with movement of the first structure, at least one of the first structure and the second structure includes a protector housing portion that houses at least part of the protector, and the protector housing portion is a space that is provided in a base portion of at least one of the first structure and the second structure and opened in a movement direction of the first structure. Accordingly, structures such as a headstock and a tool post can easily approach each other and the convenience of machining a workpiece by a machine tool can be increased.

A processing device for processing a workpiece includes a workpiece support, a working region extending over the workpiece support and having a first working zone and a second working zone, a processing tool and a divider comprising at least one adjustable element and moveable between a first position and a second position. In the first position, the divider separates the second working zone from the first working zone and, in the second position, the first working zone and the second working zone form a connected, continuous working region.

A pneumatic control device of auto door includes a first directional control valve configured to control a direction of a compressed air supplied to a door cylinder for opening and closing a door, a door detection sensor configured to detect an open/close state of the door, first and second exhaust lines respectively connected to first and second outlet ports of the first directional control valve, and second directional control valves installed in the first and second exhaust lines respectively to operably exhaust the compressed air exhausted from the first and second outlet ports according to an emergency stop signal, and capable of changing positions to reduce an exhaust speed of the compressed air in case that the door is not completely open or closed when an operation signal is generated after the emergency stop signal.

A processing machine includes: an external cover that forms an appearance of the processing machine and defines and forms an internal space; and a safety belt connection portion that is disposed in the internal space and to which a safety belt is connectable. The external cover includes an openable lid. The safety belt connection portion is exposed to an outside of the internal space through an opening that is generated in the external cover when the lid is in an open state.

A processing machine comprises: a cover that is provided with an opening and defines a processing area; a first door is slidable between a first position in which the opening is opened and a second position in which the opening is closed; a second door that is disposed to overlap with the first door inside the processing area and slidable between the first position and a third position that is opposite to the first position with respect to the second position and in which the second door cooperates with the first door to close the opening; and a rail member that includes a grooved portion and an abutment that engage with the first door and is provided at the second door to allow the second door to slide with respect to the first door. The grooved portion and the abutment are disposed outside the processing area.

A telescopic cover comprising several telescopic members for a machine tool. The telescopic members can move back and forth with respect to each other and are arranged so that they can be guided with respect to the direction of movement in an overplapping manner, can extend in two directions of movement and in guide rails that are arranged in parallel and at a distance from each other. In order to provide a telescopic cover that is constructive and easy to produce and light to move, the telescopic members respectively comprise a section with which they bridge over guide rails arranged at a distance therefrom forming a continuous arc-shaped cross-section in a first cross-section perpendicular to the direction of movement.

A machine tool system and an opening stop position calculating device are provided. The machine tool system includes an openable and closable door for closing an opening of a cover surrounding a machine tool. Furthermore, the machine tool system includes an opening width setting unit for setting an opening width of the door, an opening stop position calculating unit for calculating an opening stop position of the door at which a total time, which is obtained by summing a time required to move the door from a fully closed position to a position of the set opening width and a time required to move the door from an opening stop position where the door is opened and stopped to the fully closed position, is minimized, and a door control unit for controlling opening and closing of the door based on the calculated opening stop position when exchanging the workpiece.

A vertically sliding manual opening and closing door with good one-handed operability, including: a plate-like door member configured to open and close an opening section by being slid vertically; a support member configured to guide the vertical sliding of the door member by a support section configured to support left and right end sections of the door member; and a lock mechanism configured to position the door member that has been raised.