Boots – shoes – and leggings
Patent
1990-08-06
1993-11-30
Smith, Jerry
Boots, shoes, and leggings
36447404, 395 61, 395900, 395904, 219 6913, 219 6916, G06F 1546, B23H 100
Patent
active
052671410
DESCRIPTION:
BRIEF SUMMARY
TECHNICIAL FIELD
This invention relates to application control apparatuses for a variety of machining units (hereinafter referred to as "machining unit application control apparatuses", when applicable), and more particularly to a machining unit application control apparatus in which a plurality of method of obtaining desirable machining states such as those on machining know how techniques are stored as knowledge bases independently, and desirable machining states are held with ease by performing controls according to the methods thus stored.
The invention relates further to a machining unit application control apparatus in which methods can be readily added, and modified, and which can be used by a plurality of machining units in common.
The invention relates further to a machining unit application control apparatus which, in an electric discharge machining operation, maintains the discharge machining condition most suitable, and realizes the jumping operation of a machining electrode in such a manner as to maximize the discharge machining efficiency.
The invention relates to a machining unit application control apparatus in which, during machining methods of an operator are collected, and an automatic machining operation is carried out according to the machining methods thus collected.
The invention relates further to an automatic positioning control device for an electric discharge machine, and more particularly to a machining unit application control apparatus in which a plurality of methods are stored to realize most suitable positioning procedures, for instance, according to operator's know how techniques concerning positioning operations, and to perform automatic positioning decision with high accuracy, and an automatic positioning operation is carried out according to the methods thus stored, whereby it is achieved accurately at all times.
The invention relates further to an machining unit application control apparatus which operates for determination of a machining operation completion in an electric discharge machine in which a machining electrode is moved in a direction in which the electrode is pushed into a workpiece, and in directions perpendicular to the aforementioned direction.
BACKGROUND ART
An electric discharge machine will be described which is one of the aforementioned variety of machining units.
FIG. 1 is an explanatory diagram showing the arrangement of an application control apparatus for an electric discharge machine which has been disclosed by Japanese Patent Application Publication No. 10769/1987 for instance. In FIG. 1, reference numeral 1 designates a machining electrode; 2, a workpiece to be machined; 3, a machining vessel; 4, a machining solution; 5, a spindle; 6, a drive motor; 7, a speed or position detector; 20, a machining unit; 21, an electrode position control section; 22, a machining power source; 23, a state recognizing section; and 31, an application control section. In this description, the term "machining unit" is intended to mean that which includes the above-described parts 1 through 7, and 21 and 22.
The operation of the application control apparatus thus constructed will be described. First, the operator determines initial machining conditions taking into account the material and size of a workpiece to be machined, machining quantity, finish accuracy, and so forth, and sets them for the machining unit 20. For instance, the operator sets the peak, pulse width and pulse interval of a pulse current, an electrode pull-up period, an electrode pull-up distance, electrode servo parameters, etc.
After the initial machining conditions have been set, a discharge machining operation is started. That is, the machining power source 22 applies the pulse voltage across the inter-electrode space (or discharge gap) between the machining electrode 1 and the workpiece 2 to induce electric discharges, whereby the workpiece 2 is machined with the electrode 1 which is moved relative to the workpiece 2. The electrode position control section 21 compares an average inter-electro
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Imai Yoshihito
Maruyama Hisaichi
Morita Atsushi
Nanasawa Yoshifumi
Noda Akio
Mitsubishi Denki K.K.
Smith Jerry
Trammell Jim
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