Production and work machines are to be able to be more safely operated. Thereto, they can be equipped with a safety device, which comprises a light curtain, a first and a second reflection device, which are each formed for reflecting light of the light curtain, and a first identification element integrated in the first reflection device as well as a second identification element integrated in the second reflection device. Moreover, the safety device comprises a first sensor device and a second sensor device for reading out the identification elements. A control device provides a start signal for the machine only if the first sensor device reads out the first identification information and the second sensor device reads out the second identification information at the same time.

The invention discloses a metal cutting machine with anti-cutting hands, which includes a cutting base. The cutting base is provided with a main power cavity, and the main power cavity is provided with a power device. The power device can provide a device for the device. Power. The invention has a simple structure, convenient maintenance, and easy use. The device can automatically adjust the cutting position, and at the same time, it can automatically monitor the living body during the metal cutting process. When the human body enters the danger zone, it can automatically start the built-in The emergency clamping device clamps the blade, so that the blade stops rotating, preventing the blade from cutting the human body and causing injury to the human body, thereby greatly improving the safety during production and preventing accidental injury.

The invention discloses a metal cutting machine with anti-cutting hands, which includes a cutting base. The cutting base is provided with a main power cavity, and the main power cavity is provided with a power device. The power device can provide a device for the device. Power. The invention has a simple structure, convenient maintenance, and easy use. The device can automatically adjust the cutting position, and at the same time, it can automatically monitor the living body during the metal cutting process. When the human body enters the danger zone, it can automatically start the built-in The emergency clamping device clamps the blade, so that the blade stops rotating, preventing the blade from cutting the human body and causing injury to the human body, thereby greatly improving the safety during production and preventing accidental injury.

The invention discloses a metal cutting machine with anti-cutting hands, which includes a cutting base. The cutting base is provided with a main power cavity, and the main power cavity is provided with a power device. The power device can provide a device for the device. Power. The invention has a simple structure, convenient maintenance, and easy use. The device can automatically adjust the cutting position, and at the same time, it can automatically monitor the living body during the metal cutting process. When the human body enters the danger zone, it can automatically start the built-in The emergency clamping device clamps the blade, so that the blade stops rotating, preventing the blade from cutting the human body and causing injury to the human body, thereby greatly improving the safety during production and preventing accidental injury.

A safety system for a power miter saw comprises a support member, at least one multidirectional manipulator including a workpiece holder member moveably mounted to the support member for securing a workpiece in place, and a control box. The workpiece holder member includes a presence indicator operatively connected to the control box and configured to detect the physical presence of a saw operator's hand on the at least one multidirectional manipulator when the saw operator's hand engages the presence indicator. The control box is operatively connectable to a trigger switch of the power miter saw so that an electric motor of the power miter saw is activated only when both the presence indicator of the safety system and the trigger switch of the power miter saw are engaged by both hands of an operator of the power miter saw.

An output member is configured to transfer rotation and torque from a motor of a power tool to a working element of the power tool. The working element is configured to contact a workpiece. The output member includes a hub, an outer shell, and an isolator. The hub is configured to be driven rotationally about an axis of rotation by the motor of the power tool. The outer shell is configured to be coupled to the working element of the power tool. The isolator is interposed between the hub and the outer shell and is configured to electrically isolate the hub from the outer shell.

A power tool and methods are provided for detecting objects (e.g., flesh or other materials) in the operating path of a power tool's output component (e.g., saw blade or drill bit). An object detection sensor in the power tool generates an output signal indicative of a type of material detected in the operating path of the power tool. A power tool controller receives the object detection sensor output and determines when a material in the operating path of the power tool changes. The controller changes operation of a motor of the power tool (e.g., increasing or decreasing speed or stopping the motor) in response to the detected material change. The object detection sensor may include, for example, an RF sensor, a capacitive sensor, a camera, a conductivity probe, or an ultrasound probe.

This machine tool is provided with: a sensor (30-1, 30-2, 30-3, 30-4) which is disposed in the vicinity of an opening for loading a workpiece and which measures the motion of an object approaching the opening; a storage unit (18) storing a rule for classifying non-processing time into setup time and non-setup time on the basis of the motion of the object relative to the sensor; a determination unit (14) which, when a processing program is not being executed, determines whether the current state of the machine tool corresponds to setup time or non-setup time on the basis of the motion of the object and the rule stored in the storage unit; and an output unit (20) which produces an output indicating whether the current state of the machine tool corresponds to setup time or non-setup time.

A safety system for a power miter saw comprises a support member, at least one multidirectional manipulator including a workpiece holder member moveably mounted to the support member for securing a workpiece in place, and a control box. The workpiece holder member includes a presence indicator operatively connected to the control box and configured to detect the physical presence of a saw operator's hand on the at least one multidirectional manipulator when the saw operator's hand engages the presence indicator. The control box is operatively connectable to a trigger switch of the power miter saw so that an electric motor of the power miter saw is activated only when both the presence indicator of the safety system and the trigger switch of the power miter saw are engaged by both hands of an operator of the power miter saw.

Optical imaging apparatus and a machine vision camera system for an alarm protecting a person's hands when working at a motorized cutting or abrading machine, uses trains of sets of mirrors to define four spaced-apart viewpoints and transfer non-overlapping scenes on to an image sensor of a single camera. An optical axis from each viewpoint allows a cuboidal protected volume to be created. The cuboid may have vertical sides. Recognizable objects inside that volume cause the machine to stop, while objects near but outside the volume cause the apparatus to raise an alarm.