A main shaft structure of automatic lubricating and cooling gear shaping machine

Abstract

An automatic lubricating and cooling type gear shaping machine spindle structure, which includes a main shaft, a main shaft sleeve is arranged outside the main shaft, the main shaft sleeve is embedded in the body of the tool holder, and an oil inlet and an oil outlet are respectively arranged on the upper end of the main shaft sleeve. A spiral oil groove is provided, and the outer circle of the main shaft sleeve is provided with multiple annular cooling grooves, and the lower end of the annular cooling groove communicates with the spiral oil groove. In the present invention, two spiral oil grooves are processed in the main shaft sleeve, and oil is brought into the friction zone by the reciprocating motion of the main shaft to form a lubricating oil film to achieve the purpose of lubrication and prevent the main shaft from being damaged; the outer circle of the main shaft sleeve is covered with annular cooling grooves, cooling The lower end of the groove communicates with the lubricating oil groove, and there is only one opening between the annular cooling grooves, and the openings between adjacent cooling grooves are symmetrically distributed. The heat is taken away to ensure the sufficient cooling of the main shaft sleeve, so that the thermal deformation of the main shaft sleeve is very small and prevent the main shaft from grinding to death.

Description

technical field [0001] The patent of the present invention relates to the main shaft structure of a gear shaping machine, in particular to a main shaft structure of a gear shaping machine with main shaft rotation and reverse movement. Background technique [0002] On the existing gear shaping machines and many large-scale equipment, the main shaft is often used directly as the main motion for transmitting high power, with high rotation speed, fast reverse motion and high precision. However, since the main shaft is always moving, and the gap between the main shaft and the main shaft sleeve is small, the force is large, the lubrication is insufficient, and the temperature rises rapidly, the main shaft is easy to pull the main shaft sleeve and lock the main shaft. Especially on the gear shaping machine, due to the up and down reciprocating impact movement of the main shaft, the damage of the main shaft will make the tooth direction and tooth shape accuracy of the workpiece out ...

AI Technical Summary

Problems solved by technology

However, due to the fact that the main shaft is always moving, and the gap between the main shaft and the main shaft sleeve is small, the force is large, the lubrication is insufficient, and the temperature is long and fast, the main shaft is easy to pull the main shaft sleeve and lock the main shaft.

Especially on the gear shaping machine, due to the up and down reciprocating impact movement of the main shaft, the damage of the main shaft will make the tooth direction and tooth shape accuracy of the workpiece out of tolerance, and the tool will be directly damaged when the main shaft is locked.

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