Amada Company, Limited

Kazuhiro Kanno

Takehiro Nagayama

Hidekatsu Ikeda

Takanori Okubo

Nobuaki Ariji

Hisashi Uto

Masahiko Gondo

Aristophane Goudjanou

Masutaka Satou

A cutting processing machine includes a processing machine body and an NC device. The NC device includes a tool diameter correction amount calculator, a processing trace calculator, and a driving controller. The processing machine body includes a processing unit and a tool trace controller. In a case where, as a processing condition, an offset amount between a control center point of a tool trace and a center point of a nozzle is set, the processing trace calculator generates a tool trace control signal for causing the control center point to be displaced relative to the center point of the nozzle by the offset amount in a predetermined direction. The processing machine body controls the tool trace based on the tool trace control signal such that the control center point is displaced relative to the center point of the nozzle in the predetermined direction.

Cutting processing machine and cutting processing method

A cutting machine is provided with a machine main body and an NC device. The NC device controls the machine main body and has a tool radius compensation amount calculation unit, a machining path calculation unit, and a drive control unit. The tool radius compensation amount calculation unit generates tool radius compensation information. The machining path calculation unit generates a tool radius compensation control signal. The drive control unit generates a drive control signal. The machine main body has a machining unit and a tool path control unit. The machining unit cuts a workpiece by changing a relative position thereof with respect to the workpiece. Based on the drive control signal, the tool path control unit controls a tool path corresponding to a cutting tool and having a non-circular shape.

Cutting machine and cutting method including tool radius compensation relative to a laser path

A cutting processing machine () includes an NC device (). The NC device () includes a tool radius compensation amount calculator (), a processing trace calculator (), and a driving controller (). In a case where a processing condition (CP) includes cutting tool change information set with a change of a tool trace (TP) during cutting processing and set such that, in a case where the tool trace (TP) is changed, a control center point (CL) is fixed relative to a surface to be processed of a final processed product, the tool radius compensation amount calculator () recognizes a plurality of tool traces (TP) included in the cutting tool change information and generates tool radius compensation information (TC) that includes the plurality of tool traces (TP), positions formed with a surface to be processed (MPL), the control center point (CL), and tool radius compensation values (MVL). The processing trace calculator () generates a tool radius compensation control signal (TS).

A tool attachment unit includes a power feeding electrode and a plurality of detection electrodes. When a tool including a power receiving electrode and a displacement electrode is attached onto the tool attachment unit, the power feeding electrode and the power receiving electrode are opposed to each other, and the detection electrode and the displacement electrode are opposed to each other. A pair of the power feeding electrode and the power receiving electrode and a pair of the detection electrode and the displacement electrode form a capacitor circuit. A capacity of the capacitor circuit is changed in response to a position of the tool. A tool position detection unit supplies a power feeding signal to the power feeding electrode. A voltage information extractor extracts voltage information from the detection electrode. Based on the extracted voltage information, a position detection/arithmetic operation unit detects to which position the tool is attached.

Tool position detection device, bending device, tool, position detection method of attachment member with respect to attachment target device

A bending apparatus is provided with a ram start-up device so as to be movable in a lateral direction. A controller moves the ram start-up device to a point in front of positioning points of abutments corresponding to points of selected edges of a workpiece. The bending apparatus includes a foreign object detector that detects the entry of a foreign object into a region of movement of the ram start-up device. A controller prevents the ram start-up device from moving when the entry of the foreign object is detected.

Bending apparatus

A vertical position of a ram is directly detected by a ram position detector. A first speed arithmetic operating portion determines a first ram moving speed on the basis of a change of the detected position. A second speed arithmetic operating portion determines a second ram moving speed on the basis of a rotational number of a servo motor which is determined by a servo motor rotational number detector. A comparing portion compares the first ram speed with the second ram speed, and when a difference is equal to or more than a predetermined amount, a judging portion judges that an abnormality exists so as to immediately stop the servo motor and stop an operation.

Method of monitoring ram speed of press brake, press brake using the method, and method and apparatus for controlling ram position of press brake

In a press brake relatively moving an upper table (U) or a lower table (L) upward and downward by a plurality of hydraulic cylinders (L andR) so as to perform a bending work, the respective hydraulic cylinders (L,R) are driven by individually controlling a pair of left and right two-way. fluid pumps and hydraulic devices (L,R) provided in correspondence to the respective hydraulic cylinders (L,R) The two-way fluid pumps and the respective hydraulic devices (L,R) are mounted to a base plate () mounted to cylinder heads (L,R) of the respective hydraulic cylinders (L,R), and an oil tank () is provided in an upper side of the hydraulic devices (L,R).

Press brake and ram movement method for press brake

If an instruction to move a ram (U) is issued, a ram instructed speed is instructed to be suppressed to a certain warming-up speed not higher than a target speed until a release speed determination section () determines that a moving speed of the ram (U) calculated by a ram moving speed calculation section () reaches a predetermined warming-up release speed; if the release speed determination section determines that the moving speed of the ram (U) reaches the predetermined warming-up release speed, the warming-up speed is released to accelerate the ram (U) to the target speed.

Ram moving method for hydraulic machine, ram movement controller, method for preventing trapping of axial plunger pump used for the machine, and the pump

A ram descends due to its own weight and pressure of a rod-side cylinder chamber of a hydraulic cylinder which vertically moves the ram is detected by an oil pressure detector. A determination section detects a position at which a punch attached to the ram contacts an upper surface of a workpiece, based upon a change in the detected pressure. When the upper surface of the workpiece is detected, a plate thickness calculation section calculates a plate thickness of the workpiece based on an upper surface position of a die, that is known in advance and stored in a memory.

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Kanagawa, Japan

Kazuhiro Kanno