Cross hole deburring process for crankshaft
A technology of intersecting holes and burrs, which is applied in the field of crankshaft processing, can solve problems such as short service life, defects in deburring methods of air guns and grinding wheels, etc., achieve good deburring effect and simplify the overall process
Active Publication Date: 2020-12-11
SICHUAN FEIYA AUTO PARTS CO LTD
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Problems solved by technology
Here, deburring and chamfering are divided into two steps, and the deburring method of the air gun and grinding wheel has defects, and the service life is also short. It is necessary to propose a new optimization scheme for the treatment of the cross hole of the crankshaft.
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[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0020] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention discloses a cross hole deburring process for a crankshaft. The cross hole deburring process comprises the following steps: S1, filing off flanging burrs in an oblique oil hole by a ball-head file; S2, filing off cross hole burrs in a main shaft straight oil hole and a connecting rod straight oil hole by the ball-head file, mounting a first ball-head file on a pistol drill, extendingthe first ball-head file to a cross hole from the main shaft straight oil hole and flexibly rotating the first ball-head file by 360 degrees to file off burrs at the cross hole and chamfer, and rotating and grinding a cross portion by many times back and forth; S3, filing off the flanging burrs in the oblique oil hole by the ball-head file; S4, removing foreign matters in an oil hole by blowing the oil hole with high-pressure gas; and S5, performing oil hole inspection. The cross hole deburring process can perform cross hole deburring and chamfering simultaneously to simplify the integral process to certain extent, sequentially performs oblique oil hole and straight oil hole deburring, uniformly feeds to grind back and forth and rotates to grind back and forth correspondingly to achieve the good integral deburring effect.
Description
technical field [0001] The invention relates to the technical field of crankshaft processing, in particular to a crankshaft deburring process for intersecting holes. Background technique [0002] The crankshaft is one of the most important components in the internal combustion engine. As the power of the internal combustion engine continues to increase, the requirements for the torsional fatigue strength of the crankshaft are higher. The straight oil hole of the crankshaft and the inclined oil hole are intersected and connected to form a cross hole, and there are burrs caused by stamping or drilling at the inner intersection. Usually, the positive and negative integrated knife is used for rotary cutting, which is prone to secondary burrs, and the cost is also high. higher. The current process method has quality defects in the burrs at the internal intersection of the oil hole, which will lead to the phenomenon of early charging when the crankshaft is assembled into the engi...
Claims
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Login to View More IPC IPC(8): B23D67/06B23D67/12B23D71/00
CPCB23D67/06B23D67/12B23D71/005Y02P70/10
Inventor 刘建华杨扬陈岩熊恒中钟雪峰沈君凯赖光勇
Owner SICHUAN FEIYA AUTO PARTS CO LTD