Abstract: A shielding gas ejecting device includes a nozzle body extending along an axis, an inner shielding gas ejection path provided inside the nozzle body and opened on the axis, an outer shielding gas ejection path surrounding the inner shielding gas ejection path from a periphery, and an intermediate shielding gas ejection path provided between the inner shielding gas ejection path and the outer shielding gas ejection path. A flow velocity of an intermediate shielding gas ejected from the intermediate shielding gas ejection path is lower than a flow velocity of an inner shielding gas ejected from the inner shielding gas ejection path and a flow velocity of an outer shielding gas ejected from the outer shielding gas ejection path.

Abstract: A management system is for managing a material of a three-dimensional deposition device that shapes a laminate by irradiation with a light beam and supplying of the material. The management system includes a shape data acquisition unit that acquires shape data of the laminate; a shaping condition setting unit that sets, based on the shape data, a set shaping condition as a shaping condition for shaping the laminate by the three-dimensional deposition device; a shaping simulation execution unit that executes, based on the set shaping condition, a shaping simulation for shaping the laminate with the set shaping condition; and a required material amount acquisition unit that acquires, based on an execution result of the shaping simulation, a required material amount that is an amount of the material required for shaping the laminate by the three-dimensional deposition device.

Abstract: A rise in temperature of a work (laminating base material) is controlled and the occurrence of thermal deformation is suppressed. There is provided a three-dimensional laminating and shaping apparatus having the following arrangement. That is, the three-dimensional laminating and shaping apparatus includes a material ejector that ejects a material of a three-dimensional laminated and shaped object onto a work on which the three-dimensional laminated and shaped object is shaped. The three-dimensional laminating and shaping apparatus includes a light beam irradiator that irradiates the ejected material with a light beam. Furthermore, the three-dimensional laminating and shaping apparatus includes a jig to which the work is detachably attached. The jig includes a channel supplied with a cooling medium for cooling the work.

Abstract: This machine tool control method has: a step for accepting processing content about a workpiece; a step for referring to a storage unit, which stores, for each piece of processing content, a range of set conditions regarding the movements of a machine tool for performing the processing, and specifying the range of the set conditions corresponding to the accepted processing content; and a step for determining the settings of the movements of the machine tool on the premise of the range of the specified set conditions upon accepting a processing order according to the processing content about the workpiece.

Abstract: A method of optimizing a machining simulation condition includes a step of receiving a setting condition of a machine tool at the time of performing a prescribed machining detail, a step of calculating a first machining result that is a machining result assumed when the machine tool performs machining under the received setting condition, a step of acquiring a second machining result that is a machining result when the machine tool performs machining under the received setting condition, and a step of evaluating a degree of coincidence between the first machining result and the second machining result, and repeatedly performs the calculation of the first machining result while changing the precondition of the calculation until the degree of coincidence is equal to or more than a prescribed threshold value.

Abstract: Provided are a combined machining apparatus and a combined machining method capable of performing machining with higher accuracy and at a high speed. The apparatus has a stage unit; a mechanical machining unit including a mechanical machining head having a tool configured to machine a workpiece; a laser machining unit including a laser machining head configured to emit laser for machining the workpiece; a moving unit; and a control unit that controls the operation of each unit, in which the laser machining head has a laser turning unit that turns laser relative to the workpiece, and a condensing optical system that focuses the laser turned by the laser turning unit, and a position at which the workpiece is irradiated with the laser is rotated by the laser turning unit.

Abstract: Provided is a laser processing machine that processes a workpiece W using a laser beam. The laser processing machine comprises: first to fourth prisms 37, 47, 57, 67 that are disposed in order along an optical path of the laser beam from an upstream side; first to fourth spindles 32, 42, 52, 62 that respectively and independently hold the first to fourth prisms 37, 47, 57, 67; first to fourth holding means 31, 41, 51, 61 that respectively and rotatably hold the first to fourth spindles 32, 42, 52, 62; first to fourth motors 35, 45, 55, 65 that are respectively composed of rotors 35b, 45b, 55b, 65b that are respectively fixed to the first to fourth spindles 32, 42, 52, 62, and stators 35a, 45a, 55a, 65a that are respectively fixed to the first to fourth holding means 31, 41, 51, 61; and prism moving means 101, 102 that move the first prism 37 and/or the second prism 47.

Abstract: Provided is a laser processing apparatus provided with: a first optical system including a first prism and a second prism; a second optical system including a third prism and a fourth prism; a condensing optical system that condenses laser light to guide the condensed laser light to a workpiece; a first driving device that rotates the first prism and rotates the second prism synchronously with the first prism; a second driving device that rotates the third prism and rotates the fourth prism synchronously with the third prism; and a controller that controls the first driving device and the second driving device such that the workpiece is irradiated with the laser light while the laser light turns.

Abstract: This invention is directed to attenuating a beam output without changing the beam position and the beam diameter. A high-output optical attenuator includes a first reflector that totally reflects incident light and causes first reflected light serving as reflected light of the incident light to enter a second reflecting portion, a second reflector that reflects the first reflected light and causes second reflected light serving as reflected light of the first reflected light to enter a third reflecting portion, a third reflector that reflects the second reflected light and causes third reflected light serving as reflected light of the second reflected light to enter a fourth reflecting portion, and a fourth reflector that reflects the third reflected light as fourth reflected light having the same optical axis as the optical axis of the incident light. At least two of the second reflector, the third reflector, and the fourth reflector are half mirrors.

Abstract: A normal detection method for measuring the distance to a measurement subject using one or a plurality of distance detectors, and obtaining a normal vector on the measured surface of the measurement subject from the obtained measurement result, wherein: within a three-dimensional space, the straight line linking a first measurement point measured at a first measurement position using a distance detector and a second measurement point measured at a second measurement position different from the first measurement position is set as a first vector; the straight line linking the first measurement point and a third measurement point measured at a third measurement position different from the first measurement position and the second measurement position as a second vector; and a normal vector on the measured surface is obtained by determining the vector product of the first vector and the second vector.

Abstract: A high-precision three-dimensional laminated and shaped object is shaped. A three-dimensional laminating and shaping apparatus includes a material ejector that ejects a material of the three-dimensional laminated and shaped object onto a shaping table. The three-dimensional laminating and shaping apparatus also includes a light beam irradiator that irradiates the ejected material with a light beam. Furthermore, the three-dimensional laminating and shaping apparatus includes a light beam path controller that is arranged on a light beam path of the light beam, detects a material focus position on the shaping table, and controls the light beam path of the light beam based on the detected material focus position. The light beam path controller aligns the light beam focus position with respect to the material focus position.

Abstract: A rise in temperature of a work (laminating base material) is controlled and the occurrence of thermal deformation is suppressed. There is provided a three-dimensional laminating and shaping apparatus having the following arrangement. That is, the three-dimensional laminating and shaping apparatus includes a material ejector that ejects a material of a three-dimensional laminated and shaped object onto a work on which the three-dimensional laminated and shaped object is shaped. The three-dimensional laminating and shaping apparatus includes a light beam irradiator that irradiates the ejected material with a light beam. Furthermore, the three-dimensional laminating and shaping apparatus includes a jig to which the work is detachably attached. The jig includes a channel supplied with a cooling medium for cooling the work.

Abstract: A processing apparatus and a processing method which perform processing more accurately with a simple structure are provided. The processing apparatus includes an irradiation head 16 and a control device. The irradiation head 16 includes a laser turning unit 35 and a condensing optical system 37. The laser turning unit 35 includes a first prism 51, a second prism 52, a first rotating mechanism 53, and a second rotating mechanism 54. The control device adjusts the differences between rotation speeds and phase angles of the first prism 51 and the second prism 52 based on a relation between at least a heat affected layer of a workpiece and a turning speed of laser.

Abstract: This invention is directed to reliably condensing weak light by a sensor arranged at a position spaced apart from a processing position. The optical processing head includes a light guide that guides light for irradiating a processing position. The optical processing head further includes a light transmitter that has one end arranged near the distal end of the light guide and the other end connected to a photodetector, condenses reflected light traveling from the processing position, and transmits it to the photodetector. The optical processing head includes at least one light transmitter as its feature.

Abstract: Provided are a machining device and a machining method in which machining of higher precision can be performed with a simple configuration. The machining device has an irradiation head (16) and a controller; and the irradiation head (16) can be divided into a collimate optical system, a laser revolving unit (35), and a light collection optical system (37). The laser revolving unit (35) has a first prism (51), a second prism (52), a first rotation mechanism (53), and a second rotation mechanism (54). The controller controls the rotational speeds and the difference in phase angles of the first prism (51) and the second prism (52), on the basis of at least the relationship between a heat affected layer of a member to be machined and the revolving speed of the laser.

Abstract: A normal-line detection method for finding the normal vector of a measurement surface of a measurement target by means of at least one distance detector and calculating the normal vector from the measurement results thus obtained is provided. The normal vector of the measurement surface is found by calculating the exterior product of a first vector which connects a first measurement point and a second measurement point and a second vector which connects a third measurement point and a fourth measurement point and is shifted in parallel such that an end thereof is set at any one of the first measurement point and the second measurement point.

Abstract: This invention is directed to reliably condensing weak light by a sensor arranged at a position spaced apart from a processing position. The optical processing head includes a light guide that guides light for irradiating a processing position. The optical processing head further includes a light transmitter that has one end arranged near the distal end of the light guide and the other end connected to a photodetector, condenses reflected light traveling from the processing position, and transmits it to the photodetector. The optical processing head includes at least one light transmitter as its feature.

Abstract: This invention is directed to attenuating a beam output without changing the beam position and the beam diameter. A high-output optical attenuator includes a first reflector that totally reflects incident light and causes first reflected light serving as reflected light of the incident light to enter a second reflecting portion, a second reflector that reflects the first reflected light and causes second reflected light serving as reflected light of the first reflected light to enter a third reflecting portion, a third reflector that reflects the second reflected light and causes third reflected light serving as reflected light of the second reflected light to enter a fourth reflecting portion, and a fourth reflector that reflects the third reflected light as fourth reflected light having the same optical axis as the optical axis of the incident light. At least two of the second reflector, the third reflector, and the fourth reflector are half mirrors.

Abstract: Provided is a laser processing apparatus provided with: a first optical system including a first prism and a second prism; a second optical system including a third prism and a fourth prism; a condensing optical system that condenses laser light to guide the condensed laser light to a workpiece; a first driving device that rotates the first prism and rotates the second prism synchronously with the first prism; a second driving device that rotates the third prism and rotates the fourth prism synchronously with the third prism; and a controller that controls the first driving device and the second driving device such that the workpiece is irradiated with the laser light while the laser light turns.

Abstract: A drill that exhibits improved drill-hole depth precision is provided. Said drill, which uses a tool (T) mounted to a main shaft (16) to drill a countersunk hole (Wh) into a workpiece (W), is provided with the following: a pressure foot (17) that presses on the surface of the workpiece (W) and suppresses vibration thereof; and a displacement sensor (18) that measures the distance (L), in the axial direction of the main shaft (16), between the pressure foot (17) pressing on the workpiece (W) and the end face (16a) of the main shaft (16), which is set to a prescribed reference distance (Lo). The axial position of the main shaft (16) is corrected using a correction distance (?L), i.e. the difference between the distance (L) measured by the displacement sensor (18) and the reference distance (Lo).