A live tool system having a live tool and a collar surrounding a rotating shaft or a rotating cutting tool of the live tool. The collar houses at least one sensor capable of monitoring an operating condition proximate to the cutting tool during a cutting operation. Example operating conditions including temperature and vibration. The system also includes a wireless transmitter in communication with the at least one sensor for transmitting a signal for use by a machining center controller.

An intelligent detection cutting tool structure includes a cutting tool including a shank, a body and a detection device. The body is connected with the shank and has a cutting edge. The detection device is mounted on the shank and detects abnormal conditions during a working process of the cutting edge, and transmits a signal to a mobile device of an operator. Thus, when the cutting tool is mounted on the working machine to perform the working process, the detection device detects operation of the cutting tool during the working process and transmits the detected information to the mobile device, so that the operator can control the operating situation of the cutting tool, so as to calibrate, repair or replace the cutting tool according to the operating situation of the cutting tool.

A power tool includes a control for the motor of the power tool that senses an operating characteristic of the motor and controls the operation of the power tool based on the sensed characteristic. The sensed characteristic includes variations in reluctance of the motor. A controller may sense changes on load on the motor as a result of interaction between a working element such as a saw blade or drill bit and the work piece. The controlled operation may include variation in speed or torque or both, or may include stopping the motor. Emergency conditions may be sensed by changes in reluctance.

A method for making safe the use of at least one hand-held power tool includes providing at least one item of safety information using at least one evaluation unit of an electronic safety device. The at least one item of safety information is based on at least one application-specific characteristic quantity. The electronic safety device is configured to be fastened to an extremity of a user using a fastening unit.

The invention relates to a tool holder (10) which is embodied for rotation around a tool holder rotation axis (D) and which comprises at its one axial longitudinal end (10a) a tool segment (14) for receiving a tool, and at its other axial longitudinal end (10b) a coupling segment (16) for torque-transferring coupling to a machine tool (78), a measurement apparatus (28) for sensing data relating to the operation of the tool holder (10) being provided on the tool holder (10), which apparatus encompasses at least the following components:at least one sensor (30, 32, 34, 36) supplying a sensed signal;a signal transfer apparatus (38) for transferring a measured signal;an electrical circuit (40) connected in signal-transferring fashion to the sensor (30, 32, 34, 36) and to the signal transfer apparatus (38); andan energy supply apparatus (42) that is connected to the signal transfer apparatus (38) and to the electrical circuit (40). According to the present invention the tool holder (10) comprises a tool holder main body (12) that comprises both the tool segment (14) and the coupling segment (16), at least one component from among the sensor (30, 32, 34, 36), electrical circuit (40), and energy supply apparatus (42) being received in a recess (56, 62) in the interior of the tool holder main body (12).

An air tool monitoring apparatus includes a housing having a hollow chamber formed therein, and also having an inlet and an outlet formed therein, each of the inlet and an outlet in communication with the chamber. The apparatus also includes first and second sensors for sensing condition indicative of tool usage and wear, a battery disposed in the housing, a generator for recharging the battery, and a microprocessor operatively connected to the housing and including a timer, a memory storage module, and a unique identifier. The apparatus may include a baffle for guiding air past the generator. The apparatus further includes a switch for starting and stopping the timer, and a communication device for sending data from the microprocessor to a data collection device. Methods of using the apparatus, along with systems for monitoring and reporting on usage of multiple air tools equipped with the apparatus, are also described.

A holder may include a base, an antenna and a sensor. The base has a bar shape extended along a central axis from a first end toward a second end. The base may include a metal member and a first resin. The metal member may include a pocket that is attachable of an insert including a cutting edge. The first resin may be located closer to the second end than the metal member. The antenna may be covered with the first resin. The sensor may be located closer to the pocket than the antenna and may be wired connected to the antenna, and may be measurable a state of the base. This configuration may contribute to solving the problem that handling of wiring becomes complicated.

Provided is a temperature measurement device for a rotating member of a processing device that grips a rotating member made from a metal and capable of rotating around a rotational axis, and moves in coordination with and coaxially rotates with the rotating member. This temperature measurement device is equipped with: an ideal temperature setting means for setting an ideal temperature while the rotating member is rotating; a temperature measurement means for measuring an actual temperature while the rotating member is rotating; and a detection means for detecting whether or not the difference between the actual temperature measured by the temperature measurement means and the ideal temperature set by the ideal temperature setting means exceeds a pre-set threshold at the time the actual temperature is measured.

In order to evaluate the cooling performance of cutting oil, cooling water, and the like more accurately than conventional means, there are provided a temperature measurement method and a temperature measurement device that can actually ascertain the temperature of a rotating tool such as a cutting tool during cutting or welding torch during welding in real time. The temperature measurement method uses a rotating holder that is rotatable around a rotating axis and has a hollow hole extending from a front end to a rear end along the rotating axis, and a rotating tool that is connected to the rotating holder and has a coaxial through hole with the hollow hole. In the temperature measurement method, a step of attaching a temperature measurement unit near the through hole of the rotating tool, a step of measuring the temperature of the rotating tool that rotates coaxially with the rotating holder using the temperature measurement unit, and a step of receiving a measurement result of the temperature measurement unit by an electronic substrate are performed in this order.

The state measuring device includes a measurement section attached to the blade portion or to a vicinity of the blade portion to measure a state of the blade portion, an AD converter attached to the cutting tool to acquire a measurement value measured by the measurement section at a predetermined sampling rate and perform AD conversion on the measurement value, a transmission section which transmits, on each acquisition of the measurement value from the AD converter, the acquired measurement value using digital wireless communication, and a monitor device provided outside the cutting tool. The monitor device includes a reception section which receives the measurement value transmitted by the transmission section, and a data management section which causes a display section to display the measurement value and causes a storage section to store the measurement value on each reception of the measurement value by the reception section.