HIGH-SPEED GROOVING METHOD

• Main Author: AKIYAMA TAKANOBU
• Format: Patent
• Language: English; Japanese
• Published: 22.03.2019
• Subjects: BORING; BROACHING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; FILING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PLANING; SAWING; SCRAPING; SHEARING; SLOTTING; TRANSPORTING; TURNING

To provide a high-speed grooving method which, when machining fine grooves in the surface of a workpiece by using an ultra-precision roll turning lathe or a planer machine, can significantly increase machining efficiency.SOLUTION: A high-speed grooving method includes: a dummy machining step of machining a dummy groove in a surface of a workpiece W by moving a cutting tool 36 in a first direction, then turning the cutting tool 180 degrees, and subsequently further machining the dummy groove by moving the cutting tool in a second direction opposite to the first direction; a step of measuring displacement of a cutting edge of the cutting tool, caused by inversion of the cutting tool, from the dummy groove formed in the surface of the workpiece; a forward-stroke machining step of machining a groove in the surface of the workpiece by moving the cutting tool in the first direction; a cutting tool inversion step of turning the cutting tool 180 degrees after completion of the forward-stroke machining step; a correction step of correcting a relative position between the workpiece and the cutting tool so as to eliminate displacement; and a return-stroke machining step of further machining the groove which has been machined in the forward-stroke machining step by moving the cutting tool in the second direction.SELECTED DRAWING: Figure 7 【課題】超精密ロール旋盤やプレーナ加工機でワークの表面に微細な溝を加工する場合に、加工効率を格段に向上させることのできる高速溝入れ加工方法を提供する。【解決手段】バイト３６を第１の方向に移動させることでワークＷの表面にダミーの溝を加工し、前記バイトの向きを１８０°反転させてから、第１の方向と反対の第２の方向に移動させることでダミーの溝を加工するダミー加工工程と、前記ワークの表面に形成されたダミーの溝から前記バイト反転に伴う切刃先端のずれ量を測定する行程と、前記バイトを前記第１の方向に移動させ、前記ワークの表面に溝を加工する往動加工工程と、前記往動加工工程の後、前記バイトの向きを１８０°反転させるバイト反転工程と、前記ずれ量を解消する方向に前記ワークとバイトの相対位置を補正する補正工程と、前記バイトを前記第２の方向に移動させ、前記往動行程で加工した溝をさらに加工する復動加工工程と、を有する。【選択図】図７