Device and method for removing burrs in workpiece oil channel holes

Abstract

The invention provides a device for removing burrs in workpiece oil channel holes. The device comprises a liquid inlet end and a liquid outlet end. The liquid inlet end comprises a hydraulic pump, a check valve and a liquid inlet pipe. One end of the liquid inlet pipe communicates with the check valve. The other end of the liquid inlet pipe communicates with at least one oil channel hole of a workpiece. The liquid outlet end comprises a liquid outlet pipe, a reversing valve and a back pressure valve. One end of the liquid outlet pipe communicates with at least one oil channel hole of the workpiece. The other end of the liquid outlet pipe communicates with the reversing valve. The other end of the reversing valve communicates with the back pressure valve. The invention further provides a corresponding method for removing the burrs. Through two times of hydraulic shocks, liquid forms hydraulic vibration shock waves in the oil channel holes, thus the insides of the oil channel holes are washed repeatedly at high pressure, the burrs in the oil channel holes are removed completely, and the conditions that in the workpiece use process, burrs fall off to damage other devices and the wholeequipment are avoided effectively.

Description

technical field [0001] The invention relates to a device and method for removing burrs in oil passage holes of workpieces. Background technique [0002] At present, in the process of removing and cleaning the burrs in the oil passage holes of the workpiece, brushes with different degrees of hardness are mainly used for brushing back and forth, and then high-pressure washing is performed by hydraulic pressure. Due to the small diameter and long length of the oil passage holes of some workpieces, such as automobile engine cylinder blocks and cylinder heads, the burrs in the oil passage holes, especially the burrs at the intersection of the two oil passage holes, are difficult to remove with a brush. Generally, high-pressure liquids are difficult to completely flush the burrs in the oil passage holes. These burrs are not completely removed. Once the engine is used, it will fall off due to vibration, collision or pressure shock and then run with the oil, which will cause seriou...

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Problems solved by technology

[0005] In the above scheme, the high-pressure water forms a high-pressure water jet through multiple scale-shaped gaps, and the hydraulic pressure is increased for flushing. When passing through a long oil passage hole, the pressure will attenuate, and the flushing force received by different positions in the oil passage hole Not the same, it is difficult to remove the places with weak flushing power

[0006] Therefore, in the prior art, when the diameter of the oil channel hole is small, the length is long, and the internal structure is complicated, such as engine block, cylinder head, etc., its removal effect is difficult to achieve the effect of removal completely. How to provide a cleaning oil The device and method for removing the burr in the oil passage hole of the workpiece with better effect and more thorough removal have become a problem that needs to be solved in the industry

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