Abstract: A main spindle device for a machine tool that checks the seating of a tool holder using compressed air, wherein the main spindle device for a machine tool comprises: a main spindle that has a distal end face in close contact with a flange end of the tool holder; an annular recess that is formed on the distal end face of the main spindle so as to be covered by the flange end of the tool holder; an air supply flow channel that is linked to the annular recess and that supplies compressed air to the annular recess; a compressed air source that supplies air to the air supply flow channel; and a pressure detector that detects the pressure of the compressed air in the air supply flow channel. The annular recess has a first section and a second section that is deeper than the first section, and the air supply flow channel is opened to the second section.

Abstract: A conveyance device (100) comprises: a carriage (10); a support column (20); a lifting device (30) that moves in the vertical direction along the support column (20); and a load platform (90) that is moved in the vertical direction by the lifting device (30). The lifting device (30) includes an upper guide (40), a lower guide (50), and a linking member (60) for linking an upper member (41) and a lower member (51) together. The upper guide (40) includes: a first wheel (42) that rolls on a rear surface (22) of the support column (20); and the upper member (41) which supports the first wheel (42). The lower guide (50) includes: a second wheel (52) that rolls on a front surface (21) of the support column (20); and the lower member (51) which supports the second wheel (52), the lower guide being disposed below the upper guide (40). The load platform (90) is disposed in front of the second wheel (52), and is linked to front side and rear side portions of the linking member (60).

Abstract: A conveyance device (100) comprises: a base member (81); a holding member (83) that moves along the base member (81); a motor (M) for advancing and retracting the holding member (83); a target (T) provided on the holding member (83); an optical distance sensor (86) positioned so as to face the target (T) when the holding member (83) is in the advanced position; and a control device (70). A processor (71) is configured such that: a basic rotation speed is applied to the motor (M) to advance the holding member (83); the actual distance from the optical distance sensor (86) to the advanced target (T) is measured by the optical distance sensor (86); a corrected distance for moving the holding member (83) to the advanced position is calculated on the basis of the measured actual distance; and the motor (M) moves the holding member (83) on the basis of the calculated corrected distance.

Abstract: This conveyance system (190) comprises: a main control device (150) that receives a conveyance request for a workpiece (W) from a plurality of processing machines (1A, 1B); and a conveyance device (100) that conveys the workpiece (W) between a storage shelf (2) and the plurality of processing machines (1A, 1B). The main control device (150) transmits a standby signal indicating whether or not a plurality of conveyance requests are held in the main control device (150). A local control device (70) of the conveyance device (100) moves a carriage (10) with a first travel control parameter when the standby signal indicates that the plurality of conveyance requests are held in the main control device (150), and moves the carriage (10) with a second travel control parameter when the standby signal indicates that the plurality of conveyance requests are not held in the main control device.

Abstract: A conveyance device (100) comprises: a base member (81); a holding member (83) that moves along the base member (81); a motor (M) for advancing and retracting the holding member (83); a target (T) provided on the holding member (83); an optical distance sensor (86) positioned so as to face the target (T) when the holding member (83) is in the advanced position; and a control device (70). A processor (71) is configured such that: a basic rotation speed is applied to the motor (M) to advance the holding member (83); the actual distance from the optical distance sensor (86) to the advanced target (T) is measured by the optical distance sensor (86); a corrected distance for moving the holding member (83) to the advanced position is calculated on the basis of the measured actual distance; and the motor (M) moves the holding member (83) on the basis of the calculated corrected distance.

Abstract: A conveyance device (100) comprises: a carriage (10); a support column (20); a lifting device (30) that moves in the vertical direction along the support column (20); and a load platform (90) that is moved in the vertical direction by the lifting device (30). The lifting device (30) includes an upper guide (40), a lower guide (50), and a linking member (60) for linking an upper member (41) and a lower member (51) together. The upper guide (40) includes: a first wheel (42) that rolls on a rear surface (22) of the support column (20); and the upper member (41) which supports the first wheel (42). The lower guide (50) includes: a second wheel (52) that rolls on a front surface (21) of the support column (20); and the lower member (51) which supports the second wheel (52), the lower guide being disposed below the upper guide (40). The load platform (90) is disposed in front of the second wheel (52), and is linked to front side and rear side portions of the linking member (60).

Abstract: A machining system comprises a machining device that machines a workpiece, a set-up station with which pallet workpiece attachment/detachment is carried out, and a pallet conveyance device that conveys the pallet between the machining device and the set-up station. A partially cylindrical operator door, which can rotate around a set-up table on which the pallet is mounted, includes a partially cylindrical outer door and a partially cylindrical inner door which rotate following coaxial circular trajectories of different radii. The set-up station is provided with an interlocking mechanism that causes the outer door and the inner door to rotate in an interlocked manner so that a shielded state is constantly maintained between the operator side and the pallet conveyance device side.

Abstract: A main spindle device (10) for a machine tool that checks the seating of a tool holder (30) using compressed air, wherein the main spindle device (10) for a machine tool comprises: a main spindle (12) that has a distal end face (18) in close contact with a flange end of the tool holder (30); an annular recess (25) that is formed on the distal end face (18) of the main spindle so as to be covered by the flange end of the tool holder; an air supply flow channel (21) that is linked to the annular recess and that supplies compressed air to the annular recess; a compressed air source (23) that supplies air to the air supply flow channel; and a pressure detector (22) that detects the pressure of the compressed air in the air supply flow channel. The annular recess (25) has a first section (25a) and a second section (25b) that is deeper than the first section, and the air supply flow channel is opened to the second section (25b).

Abstract: A machining system which includes a plurality of machine tools each having an independent operation part and controller, and shared peripheral equipment associated with all of the plurality of machine tools, includes a shared controller for the shared peripheral equipment which is operable by each of the operation parts of the plurality of machine tools, wherein the shared controller includes an authorization part for granting operation authority to one of the operation parts of the plurality of the machine tools.

Abstract: A machine tool in which a splashguard, which surrounds a machining part for machining a workpiece with a tool, defines a machining chamber includes a window provided in the splashguard and through which the interior of the machining chamber can be viewed, a display device attached in the vicinity of the window, and a display control device for displaying an actually captured video showing a workpiece machining operation or a simulated video of a workpiece machining operation on a screen of the display device in synchronization with a current operation of the machine tool by changing the screen of the display device in accordance with need.

Abstract: A machining system comprises: a machining device that machines a workpiece; a set-up station with which pallet workpiece attachment/detachment is carried out; and a pallet conveyance device that conveys the pallet between the machining device and the set-up station. A partially cylindrical operator door, which can rotate around a set-up table on which the pallet is mounted, includes a partially cylindrical outer door and a partially cylindrical inner door which rotate following coaxial circular trajectories of different radii. The set-up station is provided with an interlocking mechanism that causes the outer door and the inner door to rotate in an interlocked manner so that a shielded state is constantly maintained between the operator side and the pallet conveyance device side.

Abstract: A boring device includes a base on which a work is placed, a cutting tool inserted into the through hole of the work, a rotatingly driving device for rotating the cutting tool, and supporting jigs for supporting the cutting tool by bush surfaces. The cutting tool includes a tool body having a main flow path and second branch flow paths and cutting edges formed on the outer peripheral surface of the tool body. Recessed pockets are formed in the outer peripheral surface of the cutting tool at the respective portions opposed to the bush surfaces of the support jigs. A set screw is detachably fitted to each of the second branch flow paths. The set screw includes an orifice allowing the upstream side and the downstream side of each of the second branch flow paths to communicate with each other.

Abstract: A spindle attachment device attached, for use, to a distal end of a spindle of a machine tool is provided. The spindle attachment device (11) includes a hollow casing (13) having an internal space; an input shaft (17) rotatably supported inside the casing; an output shaft (19) rotatably supported inside the casing; a coupling member (15) connected to the input shaft in order to join the input shaft to the spindle of the machine tool; a gear train (21) disposed between the input shaft and the output shaft in order to increase a rotation speed of the input shaft for a transmission to the output shaft; and a tap holder (25, 27) for mounting a tapping tool on the output shaft. The spindle attachment device increases the rotation speed of the spindle and transfers it to the tapping tool, and thus makes it possible to perform a tapping process on a workpiece at high speed, while maintaining the rotation speed of the spindle at a low level.

Abstract: A boring device includes a base on which a work is placed, a cutting tool inserted into the through hole of the work, a rotatingly driving device for rotating the cutting tool, and supporting jigs for supporting the cutting tool by bush surfaces. The cutting tool includes a tool body having a main flow path and second branch flow paths and cutting edges formed on the outer peripheral surface of the tool body. Recessed pockets are formed in the outer peripheral surface of the cutting tool at the respective portions opposed to the bush surfaces of the support jigs. A set screw is detachably fitted to each of the second branch flow paths. The set screw includes an orifice allowing the upstream side and the downstream side of each of the second branch flow paths to communicate with each other.

Abstract: A tool T such as a drill, a reamer or an end mill, formed with a through hole extending along an axis O is mounted to a tool holder 10. A pressurized gas, at 1.5 to 5 MPa, is supplied to the through hole by way of the tool holder 10, and deep-hole machining is carried out while the pressurized gas or a machining liquid in mist form is ejected from the forward end of the tool T.

Abstract: A spindle attachment device attached, for use, to a distal end of a spindle of a machine tool is provided. The spindle attachment device (11) includes a hollow casing (13) having an internal space; an input shaft (17) rotatably supported inside the casing; an output shaft (19) rotatably supported inside the casing; a coupling member (15) connected to the input shaft in order to join the input shaft to the spindle of the machine tool; a gear train (21) disposed between the input shaft and the output shaft in order to increase a rotation speed of the input shaft for a transmission to the output shaft; and a tap holder (25, 27) for mounting a tapping tool on the output shaft. The spindle attachment device increases the rotation speed of the spindle and transfers it to the tapping tool, and thus makes it possible to perform a tapping process on a workpiece at high speed, while maintaining the rotation speed of the spindle at a low level.

Abstract: The invention provides an apparatus for positioning a cutter a tool relative to a spindle of a machine tool. The machine tool include a spindle having a rotating axis and a spindle housing for supporting the spindle for rotation about the rotating axis. The apparatus includes a shank which is adapted to be mounted to the spindle of the machine tool. A piston is provided in the shank for movement along an axis which defines an angle relative to the rotating axis of the spindle. A cutter, for machining a workpiece, is connected to the piston. A first fitting member is provided on the shank and a second fitting member is provided on the piston so as to be able to fit to the first fitting member. Each of the first and second fitting members include an abutment provided on the first and second fitting members to contact each other in the direction of the axis.