A dust collecting system includes a power tool configured to perform processing operation on a workpiece by driving a tool accessory and a dust collector configured to collect dust generated by the processing operation. The power tool includes a first motor, a driving mechanism, a body housing, a first detecting device, an operation member and a second detecting device. The first detecting device is configured to detect an operation of pressing the tool accessory against the workpiece. The operation member is configured to be externally operated by a user. The second detecting device is configured to detect an operation of the operation member. The dust collector includes a second motor and a fan. The dust collecting system includes a first control device configured to control driving of the second motor based on detection results of the first detecting device and the second detecting device.

There is a need for technology that enables accurate movement of chips without performing huge image processing. Provided is a display device for displaying an image captured by an imaging unit included in a machine tool. The machine tool includes a liquid ejection unit that ejects a liquid so as to move chips generated from a workpiece and the imaging unit that captures an image inside the machine tool. The display device includes: a display unit that displays the image captured by the imaging unit; a detection unit that detects an input to a predetermined position in the image displayed on the display unit; and a transmission unit that transmits an ejection signal for ejecting a liquid from the liquid ejection unit to a related area inside the machine tool related to the predetermined position, based on a detection signal according to the detection.

A debris collection system for use in cutting or drilling holes in a ceiling with a hole saw. The debris collection system allows a user to avoid or limit exposure to dust and debris created by cutting or drilling overhead holes in drywall or wood. A clear rigid debris shield is temporarily attachable to the ceiling so that the user does not have to hold it in place while operating the hole saw. The hole saw is operably contained within a debris collection chamber defined within the debris shield when in use. A vacuum hose connects to a vacuum port in a cylindrical sidewall of the debris shield at one end and is attachable to a portable vacuum at an opposite end to create suction and remove debris from the debris collection chamber. A hose hanger is attachable to the ceiling between the debris shield and the portable vacuum to support the vacuum hose and keep it out of the way.

A power tool having a power tool housing, a motor, a tool moved relative to the housing by the motor, a fan rotated by the motor such that a fluid flow with debris generated by tool is moved into the fluid inlet by the fan and through the discharge outlet, and a filter that is removably attached to the power tool housing. The power tool housing includes a fluid inlet and a discharge outlet. The filter includes a filter media for separating the debris from the flow of fluid. The filter media defines a collection container for storing the debris. The filter also includes an opening through which the flow of fluid with the debris enters the collection container, and a valve that is moveable between a closed position, in which the opening is closed, and an open position, in which the opening is open. The valve includes a duckbill check valve.

A dust collecting device for a power tool, the dust collecting device having a lamella filter, a rotatable shaft and a lamella holder. In the collecting container of the dust collecting device, the lamellae of the filter can be set in an axial movement by a rotary movement of the shaft which is mediated by the lamella holder, which is interrupted when a first profile of the shaft and a second profile of the lamella holder are moved with respect to each other and are not in engagement with each other. This enables the lamellae to return to their original position, the return of the lamellae to this original position causing the lamellae to vibrate, which leads to the filter being cleaned. A power tool which can have a proposed dust collecting device, as well as a method for operating a power tool and for cleaning a filter is also provided.

A machine tool includes: a servo motor that changes the opening degree of an opening/closing valve; a current acquisition unit that acquires driving current outputted to a drive motor for driving a slider; and a motor control unit that adjusts the pressure of a compressed fluid in a fluid balancer by controlling the servo motor on the basis of the driving current.

An electric device in the shape of a machine tool or an energy storage module for the electric power supply of a machine tool, with the energy storage module having a module housing with a device interface for the detachable connection to the machine tool, with the machine tool having a drive motor to drive a tool holder on which a tool provided to process a workpiece is arranged or is arrangeable, with the drive motor being switchable using a switching element of the machine tool and/or the energy storage module, with the electric device having a wireless communication interface for wireless communication with an external communication apparatus, which forms part of a vacuum cleaner provided to suction dust generated by the machine tool and with the wireless communication interface being designed to send at least one control command to control, the vacuum cleaner as a function of a switching status of the switching element to the external communication apparatus via a wireless control connection.

Vacuum machining system (1), comprising a vacuum chamber (10) and a vacuum regulating valve (20). The vacuum valve (20) has a first valve seat (21a), which has a first valve opening (22a) defining a first opening axis (O) and a first sealing surface extending around the first valve opening (O), and a first valve plate (23a) with a first contact surface corresponding to the first sealing surface. The vacuum machining system further comprises a drive unit (30), which is designed in such a way and is coupled to the first valve plate (23a) in such a way that the latter can be moved at least from an open position to a closed position and back again. The first valve seat (21a) is arranged within the vacuum chamber (10) and divides the vacuum chamber (10) into a main process chamber (11) for machining the substrate and into a secondary process chamber (12). The first sealing surface extends orthogonally to the first opening axis (O) and points in the direction of the secondary process chamber (12). The first valve plate (23a) is movably arranged in the secondary process chamber (12).

A combined electric tool coordination system includes a main tool (4) and an auxiliary tool (1). The main tool (4) and the auxiliary tool (1) coordinate for working. A load detection module (E1) is used to detect a load parameter that is generated when the main tool (4) operates, and send the load parameter to a central control module (E2). The central control module (E2) adjusts output power of the auxiliary tool (1). The central control module (E2) controls power of the auxiliary tool (1) to increase as the load parameter of the main tool (4) increases and decrease as the load parameter decreases. An automatic adjustment function of the auxiliary tool (1) is applied to a dust collector (1). When power of the main tool (4) increases, more dust and scraps are generated, suction of the dust collector (1) is automatically adjusted to be higher, and the demand of a large quantity of dust is satisfied; and when the power of the main tool (4) decreases, less dust and scraps are generated, power of the dust collector (1) automatically decreases, the suction is reduced, and the demand of a small quantity of dust is satisfied.

A collar system for a dust extractor is provided including: a collar including a drill passage extending through the collar and an extension forming an internal passage that connects at one end with the drill passage, the extension being attachable to a housing of the dust extractor to enable the internal passage to connect to a suction passage of the dust extractor; and a cover mounted adjacent an entrance of the drill passage, the cover being moveable between a first position where it covers the entrance and a second position where is remote from the entrance, wherein the cover comprises at least hole that passes through the cover.