摘要:
A part program is analyzed and measurement information or measurement conditions are extracted in the measurement of coordinates and surface properties under control of the part program. Optimal measurement conditions in the actual measurement are reflected on the part program by storing the extracted measurement conditions rewritably, so that actual measurement conditions can be added to the subsequent measurement control.
摘要:
In coordinate and surface texture measurement in which measurement control is performed by a part program, a part program is analyzed to extract measurement information or measurement condition. The measurement condition is rewritably stored such that optimal measurement conditions of an actual measurement can be reflected in a part program, and such that the actual measurement conditions can be added to subsequent measurement control.
摘要:
The present invention is characterized in that: a plurality of NC machine tools (28) each including NC program generating means and NC program improving and updating means are connected to a central manager (1) via a network; actual machining performance information is supplied to the central manager (1) from the respective NC machine tools (28); the central manager (1) generates databases (3 to 12) from the collected actual machining performance information and stores the database (3 to 12) therein; and the NC machine tools (28) are each permitted to retrieve information necessary for machining from the database (3 to 12).
摘要:
A machining simulation using graphic data is conducted prior to the machining, the frequencies of forced vibration and/or load variation due to intermittent cutting are simulated according to machining information by machining simulation means (17), and a numerical control command is produced with reference to the frequencies obtained by the simulation by a numerical control command producing means (18). The simulation can be reflected on the actual machining and the creation of a machining program under the condition that the spindle rotational speed is suited to the actual machining. Hence the frequencies of forced vibration and/or load variation due to intermittent cutting and their harmonic frequencies are not approximate to the natural frequencies of the machine, tool, jig, and work, and chattering due to resonance is prevented. Therefore the surface precision can be improved.
摘要:
A machining simulation is performed on a graphic data basis prior to machining. Machining simulation means (17) simulates a forced-vibration frequency and/or a load variation frequency occurring due to interrupted cutting on the basis of machining information, and numerical control command generating means (18) generates a numerical control command on the basis of the frequencies obtained from the machining simulation means (17). A spindle rotation speed can be reflected on the actual machining and the generation of a machining program under conditions optimum for the actual machining. Therefore, the interrupted-cutting forced-vibration frequency and/or load variation frequency, or harmonic frequencies thereof which are integral multiples thereof are prevented from being close to the natural frequency of a machine, a tool, a jig or a workpiece. Thus, chattering due to resonance can be prevented, thereby improving a surface accuracy.
摘要:
In NC machining in which machining control is performed through an NC program, machining conditions at the time of actual machining are reflected in the NC program. At this time, there are two types of modes comprising an analytic storage mode in which actual machining conditions are reflected in the NC program as they are and an optimization mode in which optimization processing applies to the actual machining conditions and the result is reflected in the NC machining program, and either of them is selected according to conditions.
摘要:
A tool management method comprising acquiring, during the course of machining by using an NC program, tool information, cutting condition information, and information on the cutting tool state obtained as a result of performing machining simulations using the NC program, measuring the actual amount of wear of the tool during the cutting operations, estimating the amount of wear of the tool from the above information, and deciding whether or not to allow the use of a tool concerned.
摘要:
There is provided a method and device which extracts as a running operation history a modification made to an NC program for numerical control of machine tools which has already been completed. After making an NC program, modifications are made to the NC program prior to the actual operation so that experience in field work or results of test machining can be reflected. An optimum NC program can be obtained through such modifications, and contents of the modifications are extracted from the NC program as a running operation history to produce a data base. The running operation history data base is reflected in subsequent preparation of NC programs having similar conditions.
摘要:
In the present invention, for an NC program for controlling a machine tool, information for machining quality required by a machine tool is prewritten in the program. A measurement program for measuring the machining quality of the workpiece using a measuring machine is produced by analyzing the NC program. The machining quality of the workpiece is measured by the measurement program and the measuring machine. The machining quality of the workpiece can be judged by comparing the measurement results and the machining quality information included in the NC program. By utilizing this quality judgement, simple and effective system control can be achieved when a system such as CIM (Computer Integrated Manufacturing) is constructed in cooperation with other machine tools.
摘要:
An apparatus and method for generating numerical control information for numerically controlling machine tools. Contents of corrective editing or correction to numerical control information by a processing operator is written and stored in a processing method database as processing knowledge of the processing engineer. When a programmer generates new numerical control information, a suitable processing method can be used from the processing method database. The knowledge included processing conditions by the processing operator. The information in the processing method database is updated at each and every processing.