CONTROL DEVICE

• Main Authors: OKURA TAKAFUMI, YASUI YUTO, SHIMAMURA JUNJI, NAKANO MASAHIKO, SHIMAMURA TOMOYUKI
• Format: Patent
• Language: English; Japanese
• Published: 17.09.2020
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

To suitably restore a main shaft and a driven shaft again to a correlation according to an electronic cam profile after electronic cam control is stopped in a work device that performs a predetermined work under electronic cam control.SOLUTION: When synchronous control of a main-shaft drive device and a driven-shaft drive device performed in a work device is stopped, a predetermined position which is a position of the driven-shaft drive device corresponding to a cam angle of the stopped main shaft according to an electronic cam profile is acquire. When it is determined that the stopped driven-shaft drive device is out of the predetermined position, a return path for the driven-shaft drive device to avoid an interference section and reach the predetermined position is calculated based on the predetermined position and the interference section where the driven-shaft drive device interferes with a work-piece for a predetermined work, which is set in a cycle range of the driven-shaft drive device. Then, according to the return path, the driven-shaft drive device is driven to move its position to the predetermined position.SELECTED DRAWING: Figure 4 【課題】電子カム制御により所定仕事を行う作業装置において、電子カム制御の停止後に、再び主軸と従軸とを電子カムプロファイルに従った相関に好適に復帰させる。【解決手段】作業装置において行われていた主軸駆動装置と従軸駆動装置との同期制御が停止した際に、電子カムプロファイルに従い、停止している主軸のカム角度に対応する該従軸駆動装置の位置である所定位置を取得し、停止している従軸駆動装置が所定位置から外れていると判断される場合に、該所定位置と、該従軸駆動装置のサイクル範囲において設定されている、所定仕事のために該従軸駆動装置がワークに干渉する干渉区間とに基づいて、該従軸駆動装置が該干渉区間を避けて該所定位置に到達するための復帰経路を算出する。そして、その復帰経路に従って、従軸駆動装置を駆動させてその位置を所定位置まで移動させる。【選択図】図４