Ring-shaped part washing method and washing jig used in the method
AssigneeNsk Ltd.
InventorsHiroki Mizuno, Shigeo Tokura, Masaji Kashimoto, Takayuki Kurashima
Life of this patent
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Abstract
In a ring shaped part washing method an ultrasonic vibration plate 33 is disposed in a washing tank 23 filled with a washing fluid 31, and ultrasonic waves generated by the ultrasonic vibration plate 33 are applied to ring-shaped parts 27 disposed in the washing tank 23 to thereby remove foreign substances stick to the ring-shaped parts 27 therefrom. The ring-shaped parts 27 are disposed inclinedly with respect to the ultrasonic vibration plate 33 in such a manner that the axes 27a of the ring-shaped parts 27 intersect with the plate surface 33a of the ultrasonic vibration plate 33 at an angle θ other than a right angle.
Claims7
A ring-shaped part washing method, comprising the steps of:
- disposing ring-shaped parts in a washing tank filled with a washing fluid, each of said ring-shaped parts including a central axis and a ring face extending around the central axis, said ring-shaped parts being disposed inclinedly with respect to a ultrasonic vibration plate disposed in said washing tank in such a manner that the central axes of said ring-shaped parts intersect with a plate surface of said ultrasonic vibration plate at an angle other than a right angle, wherein said angle is set to be 30-60°;
- and
- applying ultrasonic waves, generated by said ultrasonic vibration plate, to thereby remove from said ring-shaped parts foreign substances adhering thereto.
A ring-shaped part washing method, comprising the steps of:
- disposing ring-shaped parts in a washing tank filled with a washing fluid, each of said ring-shaped parts including a central axis and a ring face extending around the central axis, said ring-shaped parts being disposed inclinedly with respect to a ultrasonic vibration plate disposed in said washing tank in such a manner that the central axes of said ring-shaped parts intersect with a plate surface of said ultrasonic vibration plate at an angle other than a right angle, wherein said angle is set to be in the range of 30-60° for some of the ring-shaped parts, and in the range of 120-150° for other ones of the ring-shaped parts;
- and
- applying ultrasonic waves, generated by said ultrasonic vibration plate, to thereby remove from said ring-shaped parts foreign substances adhering thereto.
A ring-shaped part washing method, comprising the steps of:
- disposing ring-shaped parts in a washing tank filled with a washing fluid, each of said ring-shaped parts including a central axis and a ring face extending around the central axis, said ring-shaped parts being disposed inclinedly with respect to a ultrasonic vibration plate disposed in said washing tank in such a manner that the central axes of said ring-shaped parts intersect with a plate surface of said ultrasonic vibration plate at an angle other than a right angle;
- applying ultrasonic waves, generated by said ultrasonic vibration plate, to thereby remove from said ring-shaped parts foreign substances adhering thereto;
- inserting a linear support member having a plurality of notches for inclinedly supporting said ring-shaped parts into inner peripheries of said ring-shaped parts while facing said notches downward, to thereby hang down said ring-shaped parts from said support member;
- and
- rotating said support member by 180° to face said notches upward, whereby upper portions of the inner peripheries of said ring-shaped parts are put into said notches so that all of said ring-shaped parts are inclinedly supported on said support member at the same time.
Dependencies are inferred from the claim text.