Various embodiments of power tool and method of operating same are described. The power tool may include a first position sensor, a second position sensor, a third position sensor, and a controller. The first, second, and third position sensors may each generate a signal indicative of a distance between the respective position sensor and a workpiece. The controller may determine one or more angles of the power tool with respect to the workpiece based on the first, second, and third signal and present an indication as to whether the one or more angles are within a predetermined range. The controller may further obtain a depth measurement based on the first signal, the second signal, and the third signal and generate, based on the obtained depth measurement, one or more control signals that control operation of the power tool.

Various embodiments of power tool and method of operating same are described. The power tool may include a first position sensor, a second position sensor, a third position sensor, and a controller. The first, second, and third position sensors may each generate a signal indicative of a distance between the respective position sensor and a workpiece. The controller may determine one or more angles of the power tool with respect to the workpiece based on the first, second, and third signal and present an indication as to whether the one or more angles are within a predetermined range. The controller may further obtain a depth measurement based on the first signal, the second signal, and the third signal and generate, based on the obtained depth measurement, one or more control signals that control operation of the power tool.

A numerical control system of a machine tool includes an analysis device. The analysis device includes acquisition portions which acquire chronological speed control data when the work is machined and which acquire spatial machined surface measurement data after the machining of the work, a data-associating processing portion which associates the speed control data and the machined surface measurement data with each other, a machined surface failure detection portion which detects failures on the machined surface of the work, an identification portion which identifies the speed control data of failure locations corresponding to the machined surface measurement data of the failure locations, a failure interval detection portion which detects the interval of the failures and a calculation portion which calculates the frequency of vibrations based on a machining speed based on the speed control data of the failure locations and the interval of the failures.

A numerical control system of a machine tool includes an analysis device. The analysis device includes acquisition portions which acquire chronological speed control data when the work is machined and which acquire spatial machined surface measurement data after the machining of the work, a data-associating processing portion which associates the speed control data and the machined surface measurement data with each other, a machined surface failure detection portion which detects failures on the machined surface of the work, an identification portion which identifies the speed control data of failure locations corresponding to the machined surface measurement data of the failure locations, a failure interval detection portion which detects the interval of the failures and a calculation portion which calculates the frequency of vibrations based on a machining speed based on the speed control data of the failure locations and the interval of the failures.

A tool for operating on a workpiece includes a motion actuator and a controller that responsively varies a speed of the motion actuator and an operating speed of a working surface. The controller is configured to respond to a derived force that is a function an applied force exerted by an operator to manageably adjust pressure on the working surface to achieve a rate of work. The controller changes simultaneously both a rate of work on the workpiece and the operating speed of the working surface according to a sensitivity profile. The simultaneous change of rate of work and operating speed is manageable under both acceleration and deceleration by the operator with the applied force. The sensitivity profile expresses a relationship of a monotonically increasing positive slope between the derived force and the operating speed of the working surface within the range.

A tool for operating on a workpiece includes a motion actuator and a controller that responsively varies a speed of the motion actuator and an operating speed of a working surface. The controller is configured to respond to a derived force that is a function an applied force exerted by an operator to manageably adjust pressure on the working surface to achieve a rate of work. The controller changes simultaneously both a rate of work on the workpiece and the operating speed of the working surface according to a sensitivity profile. The simultaneous change of rate of work and operating speed is manageable under both acceleration and deceleration by the operator with the applied force. The sensitivity profile expresses a relationship of a monotonically increasing positive slope between the derived force and the operating speed of the working surface within the range.

Device for cutting double curvature surfaces into expanded polystyrene foam volumes comprising a first pair of linear guides; over each of the linear guides two pairs of plates arranged over skids are moving, where a horizontal beam connects each pair of plates; the two pairs of plates and the pair of horizontal beams; a block of material supported on the plates is displaced by a first pair by of step motors simultaneously activated; where the block of material in its movement faces a rectangular frame which is arranged perpendicularly to the movement path of the block, with the rectangular frame having a fixed position and a flexible foil, which is covered with a sheath of thermal and electrical insulation, over which a resistive heating wire is helically wound where electrical current heats the wire and vaporizes the zone previous to physical contact with the block of material during displacement.

Disclosed are a method for setting a feed rate of a rotating cutting tool in real time and a device for controlling a feed rate of a rotating cutting tool in real time. The method includes: a vibration data collecting operation (S20) of collecting vibration information from a sensor installed in a machine tool (100); a chatter vibration trend diagram deducing operation (S30) of deducing a chatter vibration trend diagram (G) by simplifying an increase and a decrease of chatter vibration based on the collected vibration data; a chatter vibration trend determining operation (S40) of determining whether an inclination of the chatter vibration trend diagram (G) is increased or decreased; and tool feed rate adjusting operations (S51 and S52) of adjusting a feed rate of the tool to be decreased when the inclination of the chatter vibration trend diagram (G) is increased.

Disclosed are a method for setting a feed rate of a rotating cutting tool in real time and a device for controlling a feed rate of a rotating cutting tool in real time. The method includes: a vibration data collecting operation (S20) of collecting vibration information from a sensor installed in a machine tool (100); a chatter vibration trend diagram deducing operation (S30) of deducing a chatter vibration trend diagram (G) by simplifying an increase and a decrease of chatter vibration based on the collected vibration data; a chatter vibration trend determining operation (S40) of determining whether an inclination of the chatter vibration trend diagram (G) is increased or decreased; and tool feed rate adjusting operations (S51 and S52) of adjusting a feed rate of the tool to be decreased when the inclination of the chatter vibration trend diagram (G) is increased.

A robot machining system including: a robot in which a hand is attached to a distal end of an arm thereof; a force sensor provided in one of the robot and the machining device and detecting a force acting therebetween when a workpiece is being machined; and a control device that controls the robot or the machining device according to the detected force, wherein one of the machining device and the hand is provided with guide surfaces that extend along a direction in which the machining device and the hand are relatively moved when the workpiece is machined; the other of the machining device and the hand is provided with guided portions that are brought into contact with the guide surfaces when the workpiece is machined; and the control device performs control for maintaining a contact state between the guide surfaces and the guided portions during machining of the workpiece.