Makino Milling Machine CO.

Tokyo, Japan

Makino Milling Machine CO.

Tokyo, Japan
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Patent
Makino Milling Machine Co. | Date: 2017-01-18

Provided is a feed shaft control method, wherein a speed feedback loop having a speed controller (72) is disposed within a position feedback loop having a position controller (71), forming a cascade coupling, and an acceleration feedback signal which is outputted from a compensator (91) on the basis of an output signal of an acceleration detector (60) is subtracted from a torque instruction (r). Furthermore, the method implements control wherein a speed is acquired on the basis of the output signal of the acceleration detector (60), and a signal obtained by multiplying the acquired speed by a gain (Ka3) is added to a speed instruction (r) which is outputted from the position controller (71).


To keep an electrode guide from interfering with an object such as a workpiece during the workpiece processing period, in the present invention, a path-generating device of an electrical discharge machine that is provided with an electrode guide for supporting a rod-shaped electrode is configured so as to be equipped with: a shape data-reading unit (51) for reading the initial shape of the workpiece prior to processing and a target shape of the workpiece; an electrode-path-generating section (53) for generating an electrode path for moving the electrode laterally on the basis of the target shape of the workpiece; and a guide path-generating section (54) for generating an electrode guide path, which avoids interference between the electrode guide and the workpiece, on the basis of the initial shape of the workpiece.


Patent
Makino Milling Machine Co. | Date: 2017-08-09

In order to make it possible for an operator of a machine tool to easily calculate machining conditions and prevent calculation errors and input errors by the operator, this control device (10) for a machine tool, which machines a work piece on the basis of a machining program, is provided with: a database (16) that stores calculation formulas corresponding to types of calculation, and types of parameters required to execute said calculation formulas; an input unit (12) that selects a type of calculation; and a display unit (20) that displays, on the basis of the type of calculation selected by the input unit, the parameter to be input.


Patent
Makino Milling Machine Co. | Date: 2017-08-09

In order to facilitate reuse of an NC program for operation that has been executed in the past, this control device (13) for a machine tool that drives the machine tool (11) by executing an NC program is provided with: a first program storage unit (23) that identifies an NC program for machining using a program name or program number and stores said program; a second program storage unit (33) that stores an NC program for operation each time an operator executes an NC program for operation that is input manually; and a display unit (15) that lists a plurality of NC programs for operation stored in the second program storage unit (33) and displays said programs.


Patent
Makino Milling Machine Co. | Date: 2017-04-26

A control device (70) for a machine tool (1) that moves a tool relative to a workpiece and/or vice versa and machines said workpiece. Said control device (70) is provided with a display unit (28) that displays information related to the machine tool (1), a first-layer generation unit that generates a first layer that contains machining information related to the machining being performed on the workpiece, and a second-layer generation unit that generates a second layer that contains an image or handwritten note related to the machining information in the first layer. The display unit (28) displays an image consisting of the second layer superimposed onto the first layer.


Patent
Makino Milling Machine Co. | Date: 2017-08-09

Provided is a control device for a machine tool that exchanges a tool and machines a work piece on the basis of a machining program, said control device being provided with a machining program analysis unit (25a) that analyzes a machining program and extracts, from the machining program, measurement-related information relating to a dimensional measurement of a tool, and with a measurement program generation unit (25b) that, on the basis of the measurement-related information and basic tool information input in advance, generates a measurement program for measuring the dimensions of the tool.


Patent
Makino Milling Machine Co. | Date: 2017-08-09

This control device (70) for a machine tool is provided with: a display unit (28) that displays information relating to a machine tool (1); a display control unit (22) that controls the display of the display unit (28); and a storage unit (26). A display setting of the display unit (28) that corresponds to an operation of an operator or the condition of the machine tool (1) is stored in advance in the storage unit (26). The display control unit (22) acquires an operation of the operator or the condition of the machine tool, reads the display setting corresponding to the operation of the operator or the condition of the machine tool from the storage unit (26), and changes the display of the display unit (28) on the basis of the display setting.


Patent
Makino Milling Machine Co. | Date: 2017-04-26

Graphics representing a main-spindle-side structure (Ps) and a table-side structure (Pt) and graphics representing arrows (Ax, Ay, Az, Aa, Ab, Ac) indicating the movement directions of feed shafts are stored in a storage unit (18), and when switched to manual operation, a display computation unit (16) computes the orientations of said arrows with respect to the structure that moves, said structure being either the main-spindle-side structure (Ps) or the table-side structure (Pt), and computed graphics representing the structures and the arrows are displayed in a differentiated manner so as to make it evident which structure moves.


Patent
Makino Milling Machine Co. | Date: 2017-04-26

A control device for a machine tool, said control device being provided with a display unit (28) that displays machining information and a display control unit (22) that generates an image to display on said display unit (28). The display control unit (22) is designed so as to divide up the display region of the display unit (28), generating a plurality of subregions (48a-48d, 50a, 50b). Via input from an operator, the sizes of said subregions (48a-48d, 50a, 50b) can be changed. The display control unit (22) changes the display format of the machining information in accordance with the machining information to be displayed and the sizes of the subregions (48a-48d, 50a, 50b).


Patent
Makino Milling Machine Co. | Date: 2017-09-13

A numerically controlled machine tool (10) in which a numerical control program acquired from a reading and interpreting unit (52) of a numerical control device is executed by a distribution interpolating unit (54) and servo control units (56), (58) and (60) to drive a feed shaft configured from a coarse movement mechanism and a fine movement mechanism, causing a tool to move relative to a workpiece, and thereby machining the workpiece, wherein the difference between a movement command for the feed shaft, and an output value which varies on the basis of said movement command is obtained, a movement command for the coarse movement mechanism is generated on the basis of said movement command, and a movement command for the fine movement mechanism is generated on the basis of said difference.

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