METHOD FOR GRINDING CRANKSHAFT JOURNAL SYMMETRICALLY

• Main Authors: SUN Jun, SHAO Shibo, HU Jingkai, LV Shijie, CONG Jianchen, MOU Jianhui
• Format: Patent
• Language: English
• Published: 17.02.2023
• Subjects: DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; PERFORMING OPERATIONS; POLISHING; TRANSPORTING

A method for grinding a crankshaft journal symmetrically is provided. Each section of journal of a crankshaft is ground twice through a grinding wheel, and the grinding wheel is provided with a cylinder grinding portion, a round corner grinding portion A and a round corner grinding portion B; when the grinding wheel grinds the front section of journal for the first time, the round corner grinding portion A of the grinding wheel grinds a first round corner of the journal, and the grinding wheel grinds the front section of journal for the second time, the round corner grinding portion B of the grinding wheel grinds a second round corner of the journal; when the grinding wheel grinds the next section of journal for the first time, the round corner grinding portion B of the grinding wheel grinds a first round corner of the journal, and when grinding wheel grinds the next section of journal for the second time, the round corner grinding portion A of the grinding wheel grinds a second round corner of the journal. In the present disclosure, the round corner grinding portion A and the round corner grinding portion B are alternately grounded twice and once, so that the grinding amount of the grinding wheel is more uniform, and frequent trimming of the grinding wheel is not required.