GROOVE GRINDER

• Main Author: NAGATA HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 26.09.2019
• Subjects: BLASTING; DRESSING OR CONDITIONING OF ABRADING SURFACES; ENGINEERING ELEMENTS AND UNITS; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GRINDING; HEATING; LIGHTING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; POLISHING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

To provide a groove grinder capable of inhibiting a grinding burn when a groove is ground in a fixed pulley of a transmission mechanism for a vehicle.SOLUTION: A groove grinder comprises: a supply head moving in an axial X direction following a movement of a support shaft in the axial X direction; and nozzle parts disposed in the supply head and including discharge nozzles N (NL1, NR1) of a coolant OL. The nozzle parts are disposed on both sides of a grinding stone 3 in an axial Y direction. The discharge nozzles N (NL1, NR1) in the nozzle parts are arranged so that discharge ports for the coolant are oriented from moving direction side of the support shaft toward a contact region Rs between a grinding part of the grinding stone 3 and an outer periphery of a shaft part 92.SELECTED DRAWING: Figure 6 【課題】車両用変速機構の固定プーリに溝を研削する際の研削焼けを抑制できる溝研削装置を提供する。【解決手段】溝研削装置は、支持軸の軸線Ｘ方向の移動に追従して軸線Ｘ方向に移動する供給ヘッドと、供給ヘッドに設けられて、クーラントＯＬの吐出ノズルＮ（ＮＬ１、ＮＲ１）を有するノズル部と、を有する。ノズル部は、軸線Ｙ方向における砥石３の両側に設けられている。ノズル部において吐出ノズルＮ（ＮＬ１、ＮＲ１）は、クーラントの吐出口を、支持軸の移動方向側から、砥石３の研削部と軸部９２の外周との接触領域Ｒｓに向けて設けられている。【選択図】図６