Abstract: A gyro sensor is secured to a machine tool. When the machine tool is displaced, the gyro sensor detects rotation of the machine tool. The machine tool has a rotation detecting unit. Based on rotation data obtained by the gyro sensor, the rotation detecting unit determines whether the machine tool has been displaced. If the maximal rotation angle of the machine tool exceeds a predetermined value, the rotation detecting unit determines that the machine tool has been displaced. The rotation detecting unit has history data of the rotation angle recorded in a period from the time at which detection of the rotation angle of the machine tool is started to the time at which such detection is ended. The rotation detecting unit determines whether the machine tool has been displaced using the history data.

Abstract: In a complex machining machine tool, a tool rest capable of attachably and detachably installing tool installing inserts thereon is provided, a plural number of virtual tools is set and registered concerning a predetermined at least one tool together with its indexing positional data in tool file, the tool data of the corresponding virtual tool is read out from the tool file on the basis of the machining instruction by the virtual tool stored in machining program, and the corresponding virtual tool is indexed on the tool rest on the basis of the indexing positional data, and then machining with the virtual tool is executed. At the time of machining, it is possible to continue machining with the same tool by only positional indexing without changing the tool. The work for changing tools can be extremely decreased even if machining contents are changed or it is necessary to change tools by tool exhaustion.

Abstract: In a complex machining machine tool, a tool rest capable of attachably and detachably installing tool installing inserts thereon is provided, a plural number of virtual tools is set and registered concerning a predetermined at least one tool together with its indexing positional data in tool file, the tool data of the corresponding virtual tool is read out from the tool file on the basis of the machining instruction by the virtual tool stored in machining program, and the corresponding virtual tool is indexed on the tool rest on the basis of the indexing positional data, and then machining with the virtual tool is executed. At the time of machining, it is possible to continue machining with the same tool by only positional indexing without changing the tool. The work for changing tools can be extremely decreased even if machining contents are changed or it is necessary to change tools by tool exhaustion.

Abstract: A complex machining machine tool is capable of executing a plurality of kinds of machining operations on a workpiece by selectively indexing and using an insert installed on a complex tool. The complex tool is registered in a tool data file as a plurality of virtual tools capable of executing corresponding machining operations. The virtual tools include a turning tool and a milling tool. In the tool data, the angle in a B-axis direction at which the tool is positioned when the virtual tool is used is stored as a B-axis angle for each virtual tool. The tool data of the corresponding virtual tool is read out from the tool file on the basis of the programmed machining instructions, and the B-axis angle is set on the basis of the tool data so as to execute machining.

Abstract: A complex tool has a main body and a turning tool provided at an outer periphery portion of the main body. The turning tool is capable of machining on a rotating workpiece without rotating itself. An insert installed on the turning tool has a top end which contacts a workpiece by projecting a predetermined amount outside the main body's outer peripheral face. It also projects a predetermined amount from a top end portion of the main body in a direction of an axial center of the tool. The complex tool also has a rotating tool for machining by rotating itself. The rotating tool accomplishes machining corresponding to an axial center of the main body.

Abstract: In a complex machining machine tool, a tool rest capable of attachably and detachably installing tool installing inserts thereon is provided, a plural number of virtual tools is set and registered concerning a predetermined at least one tool together with its indexing positional data in tool file, the tool data of the corresponding virtual tool is read out from the tool file on the basis of the machining instruction by the virtual tool stored in machining program, and the corresponding virtual tool is indexed on the tool rest on the basis of the indexing positional data, and then machining with the virtual tool is executed. At the time of machining, it is possible to continue machining with the same tool by only positional indexing without changing the tool. The work for changing tools can be extremely decreased even if machining contents are changed or it is necessary to change tools by tool exhaustion.

Abstract: A method of machining a workpiece uses a complex tool having a number of inserts. The tool is installed on a tool holder of a machine tool and used for a turning machining operation on a workpiece, including rotating the workpiece, and selectively using one or more of the inserts on the complex tool, with the complex tool being fixed and held. A milling machining operation is performed on a workpiece using one or more of the inserts, with the complex tool being rotated and driven. Both turning machining and milling machining operations can be performed without changing tools. Extremely efficient machining is possible.

Abstract: In a lathe 1, an angular position &bgr; x for respectively positioning a single tool in the plural numbers of directions of the tool edge is computed according to designated shape information IFa, and the tool 25 held by the tool holding body 22 can be positioned in the plural number of directions of the tool edge in order by indexingly positioning the tool holding body 22 in the B-axis direction on the basis of the computed angular position &bgr; x at the time of machining. A plurality of machining modes can be machined with a single tool.

Abstract: A machine tool capable of performing screw-machining on a rotating workpiece has a tool rest which can attachably and detachably equip a turning tool with an insert on its tip and is provided so as to be freely driven to move in first and second axial directions orthogonal to each other. The tool rest is also being provided so as to freely rotate about a third axis orthogonal to the first and second axial directions so as to be positioned at a selected tool-rest angle with respect to the workpiece. The machine tool includes suitable features to allow inputting of machining information, computing of a cutting pattern, and execution of screw-machining.

Abstract: The turning machining tool has a main body 2 forming tool holding portion 3. An insert holding portion 12 is provided to the main body so as to being rotatably in a predetermined plane. A insert 13 is detachably attached to the insert holding portion 12. A rotation drive means 5,6,9,10,11,17,19 for the insert holding portion 12 is provided to the main body. It is possible to freely and rotatably drive the insert holding portion 12 in the predetermined plane. Therefore, it is possible that the insert 13 takes various machining positions for main body 2. So, various machining such as the bag hole machining becomes possible.

Abstract: In a complex machining machine tool capable of executing a plurality of kinds of machining on a workpiece by selectively indexing and using an insert installed on a complex tool, complex tool is registered concerning a plurality of machining capable of executing with the complex tool as a plurality of virtual tools for executing the machining in tool file. The virtual tools include a turning tool and a milling tool. The tool data is stored for each virtual tool. In the tool data, the angle of B-axis direction at which the tool is positioned when the virtual tool is used is stored as B-axis angle concerning each virtual tool. The tool data of the corresponding virtual tool is read out from the tool file on the basis of the machining instruction by the virtual tool stored in machining program, and the B-axis angle is set on the basis of the tool data so as to execute machining.

Abstract: In a method of machining a workpiece wherein a complex tool 21 having a plurality of inserts 22, 23, 25, 26, 29, 30 thereon is installed on a tool holding means 20 of a machine tool so as to machine a workpiece 17, turning machining is performed on rotating workpiece, selectively using one or more inserts of a plurality of inserts installed on the complex tool, with the complex tool being fixed and held, and milling machining is performed on a workpiece using one or more inserts of a plurality of inserts installed on the complex tool, with the complex tool being rotated and driven. Then, both turning machining and milling machining can be performed without changing tool, and extremely efficient machining is possible.

Abstract: In a complex tool 21 capable of performing turning machining and milling machining by using a single or simultaneously using a plurality of inserts 22, 23, 25, 26, expiration of lifetime of the complex tool is judged by integrating machining time element UT, LN every insert, and when expiration of lifetime of at least one insert is judged, judgement is performed in such a manner that the complex tool installing the insert thereon, which expiration of lifetime is judged, reaches expiration of lifetime. When only one insert reaches expiration of lifetime, the machining with the complex tool can be immediately stopped. Then, a lowering of machining accuracy by continuing to use the insert which reaches expiration of lifetime can be avoided. Since the machining time element is integrated every insert, the inserts which reaches expiration of lifetime and others of the same complex tool can be clearly differentiated from one another.

Abstract: A program translation calculating section translates a machining program of a turret punch press to a form which a laser beam machine is able to put into practice according to first and second translating program groups. The laser beam machine is drive controlled based on the translated machining program.

Abstract: A laser beam machine comprises stationary guide means, a first table movably mounted on the stationary guide means for moving between two positions, a movable guide means liftably disposed, and a second table movably mounted on the movable guide means for movement between the two positions. The tables are exchanged with each other by lifting the movable guide means to move the first and second tables between the two positions.

Abstract: A first drive means is provided to an upper turret and a lower turret in such a manner as that the upper turret and lower turret can be synchronously rotated through a turret drive system, and a second drive means is provided to an upper metallic mold and a lower metallic mold in such a manner as that the upper and the lower metallic molds can be synchronously rotated within the respective turrets through a metallic mold drive system, and the metallic mold drive system is connected to the turret drive system through a differential gear mechanism. And, when the turrets are positioned, the second drive means is held stopped and the metallic molds each holding its own dividing angle are rotated within the respective turrets by the first drive means through the differential gear mechanism. The dividing of the angles for the respective metallic molds is carried out through the differential gear mechanism by the second drive means while maintaining the turrets positioned and stopped.

Abstract: A turret type punch press which has a plurality of strikers is disclosed. The punch press comprises a turret mechanism, a plurality of large-diametrical punches radially spaced along a main circular track of the turret mechanism, a plurality of small-diametrical punches spaced along a plurality of subtracks centering around points on the main circular track between every two adjacent large-diametrical punches, a main striker provided in the lower end of a ram to correspond with the large-diametrical punches and a plurality of substrikers provided circumferentially along the main striker to correspond with the small-diametrical punches. The main striker and the substrikers are selectively operated according to selection of the punches.