摘要:
A method and apparatus for sensing the present position of a movable machine element in a position control system when a position control loop in the system is placed in the open state. In the position control system, error storage means (107b) computes and stores an error between a command value produced by a control unit (102), and an amount of movement sensed by a position sensor provided on a motor shaft or on the movable machine element, and a speed control circuit controls the motor in accordance with the error from the error storage means (1 07b). The method of sensing present position includes steps of reading and storing as a steady deviation the error from said error storage means (1 07b) immediately before the position control loop is switched from the closed to the open state, reading the error in the error storage means (1 07b) when the position control loop is in the open state, updating the content of a present position register (202) on the basis of an arithmetic difference obtained by subtracting the steady deviation from the read error, and revising the content of the error storage means (107b) by the arithmetic difference.
摘要:
An automatic numerical control programming device having a box-like body with a carrying handle and a lid element hinged to the body. The device contains, within the body, a graphic display unit, a floppy deck, an electric processing unit, and controllers. The device also contains, in the inside face of the lid element, a keyboard panel. A carrying handle is attached to either the containing body or the lid element to make the device portable.
摘要:
A method and apparatus for creating numerical control data by entering coordinates which specify points on a drawing placed on a tablet. A minimum reading distance is preset at the time that coordinate values of points are to be entered from the tablet. This is followed by entering the coordinate values of prescribed points on the drawing by designating the points at random using coordinate designating means, generating the coordinate values of whatever point is being designated by the coordinate designating means each time said means travel a distance equivalent to the minimum reading distance as said means is moved continuously along a graphic appearing on the drawing, and creating numerical control data by using the coordinate values. Numerical control data approximating straight line segments can be readily created, even for curves other than straight lines and circular arcs, by setting a sampling pitch interval to a suitable value.
摘要:
A method and apparatus for sensing the present position of a movable machine element in a position control system when a position control loop in the system is placed in the open state. In the position control system, error storage means (107b) computes and stores an error between a command value produced by a control unit (102), and an amount of movement sensed by a position sensor provided on a motor shaft or on the movable machine element, and a speed control circuit controls the motor in accordance with the error from the error storage means (1 07b). The method of sensing present position includes steps of reading and storing as a steady deviation the error from said error storage means (1 07b) immediately before the position control loop is switched from the closed to the open state, reading the error in the error storage means (1 07b) when the position control loop is in the open state, updating the content of a present position register (202) on the basis of an arithmetic difference obtained by subtracting the steady deviation from the read error, and revising the content of the error storage means (107b) by the arithmetic difference.
摘要:
A numerical control system having an automatic programming unit for executing automatic programming, and a numerical control unit for executing numerical control. A single operator's panel having selection keys is provided and shared by both the automatic programming unit and numerical control unit. The system includes a control unit which, based on selection information entered from the operator's panel by manipution of the selection keys, devotes the operator's panel exclusively to the automatic programming unit or numerical control unit. The automatic prgramming unit and numerical control unit share a single display device and a single data input/output unit, in addition to the operator's panel.
摘要:
An automatic numerical control programming device having a box-like body with a carrying handle and a lid element hinged to the body. The device contains, within the body, a graphic display unit, a floppy deck, an electric processing unit, and controllers. The device also contains, in the inside face of the lid element, a keyboard panel. A carrying handle is attached to either the containing body or the lid element to make the device portable.
摘要:
A numerical control system having an automatic programming unit for executing automatic programming, and a numerical control unit for executing numerical control. A single operator's panel having selection keys is provided and shared by both the automatic programming unit and numerical control unit. The system includes a control unit which, based on selection information entered from the operator's panel by manipution of the selection keys, devotes the operator's panel exclusively to the automatic programming unit or numerical control unit. The automatic prgramming unit and numerical control unit share a single display device and a single data input/output unit, in addition to the operator's panel.
摘要:
Disclosed are a method and apparatus for entering data using a picture displayed on the display screen (DFS) of a cathode-ray tube. The display screen (DFS) is divided into an m x n array of display areas (52 to S9), each of which displays a predetermined picture. A keyboard (TK) is provided with an m x n array of keys (1 to 9), each of which corresponds to one of the display areas (S1 to S9) of the display screen (DFS). Data conforming to a picture appearing in any one of the display areas (S1 to S9) is entered by pressing the key corresponding to said area.
摘要:
A method and apparatus for system creation in which a processor (10) exchanges information with input/output units (2a, 2b) in accordance with a control program stored in a memory (11). The control program is stored in a memory in the form of a basic program (11m) and plural optional programs (11 a, 11 b, 11 c), and the processor (10) discriminates the hardware complexity level of the connected input/output units (2a, 2b) and decides which of the plural optional programs (11a, 11 b, 11 c) are to be executed.
摘要:
Disclosed are a method and apparatus for setting an information input zone wherein a tablet 13a is used to enter the coordinates of a point located on a drawing DR placed on the tablet 13a, as well as control information, namely information other than coordinates. The method includes setting an information input zone MN by affixing a sheet member, having a plurality of areas recorded thereon, at a predetermined position of the tablet 13a surface, specifying the position of each of the areas and assigning each area a particular meaning, presetting a specific area of the plurality of areas as an area for establishing a control information input mode, and generating a signal indicative of control information by discriminating that a prescribed area has been designated following designation of the specific area, the control information having meaning corresponding to the that assigned to said prescribed area. The invention makes it possible to utilize the surface of the tablet 13a in an effective manner and facitates the entry of information.