Boots – shoes – and leggings
Patent
1995-04-07
1998-08-18
Gordon, Paul P.
Boots, shoes, and leggings
364191, 3644681, 36447417, G06F 1900
Patent
active
057966184
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a machining information determination system and method of operating the same, a machining information determination apparatus and method, a CAD apparatus and method of operating the same, a machining-process information determination system and method, as well as a machining-process information apparatus and method.
Background Art
The following method has been disclosed in Japanese Patent Application Laid-Open Nos. 2-72413 and 2-293904 as a machining information determination method in a CAD (computer aided design)/CAM (computer aided manufacture) system or machine tool:
On the basis of drawing information representing a workpiece, an operator designates the shape that is eventually desired (i.e., the shape after machining). Next, with regard to the tool used by the machine tool, the operator designates the shape of the machining tool, the tool diameter, the rotational speed and the feed rate, etc. The operator designates the shape of the workpiece (i.e., the shape before machining) as well as the initial position, final position and traveling direction of the machining tool. By then designating a machining method conforming to the surface precision of the workpiece, the tool path of the machining tool and NC (numerical control) data are created.
In the conventional method of this kind, however, the operator must designate numerous parameters of the machine tool. Making these designations requires considerable time and the task is a troublesome one. Further, the parameters of the machine tool include some that are interrelated, such as the type of material to be machined, and the feed rate of the machining tool and the rotational speed thereof. It is required that such parameters be set on the basis of special knowledge, and the settings cannot be made unless the operator is skilled. Furthermore, the operator must set the machine tool parameters for each stage of machining, such as rough machining, semi-finishing and finishing. The result is poor operating efficiency.
Further, the following method has been disclosed in Japanese Patent Application Laid-Open No. 4-114207:
A machining method file and a tool information file are prepared in advance. Machining methods corresponding to shape after machining are stored in the machining method file in accordance with machining order of priority. Tool information corresponding to each machining method is stored in the tool information file in accordance with order of priority of use. When drawing information that has been created in a CAD apparatus is entered, machining method and machining tools are decided by referring to the machining method file and tool file, and the desired machining information is then created.
In the conventional method of this kind, however, the information that has been stored in the machining method file and tool information file is limited in nature and therefore machining methods and machining tools that have not been stored in these files cannot be accommodated. In addition, if the machine tool or machining tool, etc., is modified, the information that has been stored in the machining method file and tool information file must be modified in succession. This is a troublesome task.
Furthermore, in a system comprising a CAD/CAM apparatus and a machine tool, there are occasions where process design information and machining information is created, while referring to standard machining information created in advance, on the basis of workpiece product drawing information created by the CAD apparatus. The standard machining information is information relating to machining processes and corresponds to a standard pattern (referred to as a "macro pattern") of a machined shape. A skilled operator adapts the standard machined-shape pattern to a portion having a similar shape in the workpiece product drawing, revises the machining processes of the machined-shape pattern and decides process design information and machining condition information.
However, in a situation in which a wide variety of artic
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Arao Masaki
Hayashi Motoji
Ishiguro Susumu
Maeda Tadasu
Miyamoto Norichika
Gordon Paul P.
Omron Corporation
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