Integral spinning forming method of silicone oil damper housing of crankshaft

Abstract

The invention discloses an integral spinning forming method of a silicone oil damper housing of a crankshaft. The method comprises the following steps: a, blanking; b, punching a center hole; c, performing shovel spinning to increase the thickness, wherein a first shovel spinning wheel and a second shovel spinning wheel on a numerically controlled spinning machine are synchronously operated to perform shovel spinning on a circular board so as to form an inner barrel on the circular board; d, performing stretching and spinning to obtain an outer barrel, namely, flanging the circular board through a flanging wheel on the numerically controlled spinning machine, and performing spinning through a spinning flattening wheel, so as to form the outer barrel on the circular board, wherein the outer barrel is concentric with the inner barrel; e, performing spinning to obtain teeth; and f, machining. The integral spinning forming method of the silicone oil damper housing of the crankshaft is high in adaptability; the silicone oil damper housing, manufactured by the method, of the crankshaft, is high in sealing performance, easy in quality control, and long in service life; meanwhile, a good spinning die design scheme and a good forming scheme are provided for other shovel spinning parts, stretching and spinning flanging parts and double-barrel shaped parts with different sizes. Therefore, the method has a great guiding significance.

Description

technical field [0001] The invention relates to a processing method for a crankshaft silicone oil shock absorber shell, in particular to an integral spinning forming method and a processing method for the crankshaft silicone oil shock absorber shell. Background technique [0002] In order to reduce the torsional vibration of the crankshaft, improve the fatigue life of the crankshaft, and reduce the vibration and noise of the whole vehicle, modern automobiles will install a crankshaft torsional vibration damper at the front end of the crankshaft with the largest torsional vibration amplitude of the engine. According to the different ways of reducing torsional vibration, it can be divided into three types: dynamic type, damping type and composite type, and the crankshaft silicone oil shock absorber belongs to a kind of damping shock absorber. This silicone oil shock absorber requires good sealing and a large inertial body to ensure reliable operation and meet good use requirem...

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