Hydraulic vibration drilling head

Abstract

Disclosed is a hydraulic vibration drilling power head. An output shaft of a first servo motor is connected with a main shaft, a containing cavity is formed inside an outer shell body, a first static pressure sliding bearing and a second static pressure sliding bearing are installed at the left end and the right end of the containing cavity of the outer shell body respectively, a left end cover is connected with the left end of the outer shell body, a right end cover is connected with the right end of the outer shell body, oil inlets of the two static pressure sliding bearings are communicated through an oil inlet passageway in the outer shell body and connected with an oil outlet of a pressure relief valve, and oil returning ports of the two static pressure sliding bearings are connected with an oil returning port of an oil tank through an oil returning passageway inside the middle of the outer shell body. A vibration body is connected with the main shaft, an oil passing hole is formed in the middle of the vibration body, an oil outlet of a high-frequency excitation valve is connected with an oil inlet / outlet of the outer shell body and communicated with the oil passing hole through an inlet / outlet passageway in the outer shell body and an axial passageway in the main shaft, the right end of the vibration body is connected with an elastic end cover, a vibration containing cavity is formed by the right end of the vibration body and the left end of the elastic end cover, and the right end of the elastic end cover is fixedly connected with a clamping head. The hydraulic vibration drilling power head is high in vibration frequency, simplifies the structure and is good in stability.

Description

technical field [0001] The invention relates to a drilling power head, in particular to a hydraulic vibration drilling power head. Background technique [0002] With the rapid development of the functionalization and precision of mechanical equipment, various new materials and processing methods have been applied to product development. When drilling these difficult-to-machine materials and elongated holes, the existing bench drill During the drilling process, the drill bit cuts continuously, the cutting force is large and the chip breaking is not good, so the precision and surface roughness of the processed hole are not high, and the service life of the tool is also low. Therefore, traditional drilling has become increasingly unable to meet people's requirements due to its own limitations. [0003] Vibration drilling technology is a processing technology that improves the drilling process by adding a vibrating motion to the drilling process. In the existing vibration dril...

AI Technical Summary

Problems solved by technology

In the existing vibration drilling mechanism, the vibration force generated needs to be transmitted to the main shaft through the lever mechanism, and when the frequency / rotation ratio is required to be greater than 1, a gear transmission device needs to be added, which will increase the cost, noise and structural size. The vibration of the main shaft of the drilling mechanism will increase the load on the bearing and shorten the life of the bearing

Moreover, the traditional mechanically driven vibration device lacks certain stability during the vibration drilling process, or is limited by factors such as its own structure and cannot reach a higher frequency.

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