Ultrasonic longitudinal and torsional vibration grinding device

• Main Authors: HE YAN, YE LINZHENG, ZHU XIJING
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2018
• 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

The invention relates to an ultrasonic longitudinal and torsional vibration grinding device which comprises a barrel-shaped shell. The upper end of the shell is sealed; the lower end of the shell is opened; a circular hole is formed in the middle of the upper end surface of the shell; a vertical shaft is arranged in the shell, is coaxial to a center line of the shell, and is sequentially and serially provided with a collecting ring and a piezoelectric ceramic from top to bottom; an inner ring of the piezoelectric ceramic clings to the peripheral surface of the vertical shaft in an insulating way; the vertical shaft and the shell are movably connected through two first bearings; the two first bearings are located on the upper side and the lower side of the piezoelectric ceramic; the piezoelectric ceramic is provided with an inner spacing sleeve and an outer spacing sleeve from inside to outside; the inner spacing sleeve and the outer spacing sleeve are arranged between the two first bearings; and the collectin