Machine tool spindle with annular jetting type cooling device

Abstract

The invention discloses a machine tool spindle with an annular jetting type cooling device. The machine tool spindle comprises a spindle box body, a spindle arranged in the spindle box body and high-pressure cooling liquid arranged on the inner wall of the spindle box body in a surrounding mode, and the annular jetting type cooling device is connected to the lower end of the spindle box body. Theannular jetting type cooling device comprises a base, guide rails, sliding blocks, a circular-ring-shaped sliding sleeve, a rack, a gear, a motor, a motor installing plate, 7-shaped nozzle brackets and high-pressure nozzles, wherein an annular groove is formed in the upper end face of the base, a communicating hose is arranged in the base, a cooling liquid channel is arranged in each nozzle bracket, and the annular groove, the communicating hose, the cooling liquid channels and the high-pressure nozzles communicate with one another in sequence to form a cooling liquid pipeline. According to the machine tool spindle with the annular jetting type cooling device, the tool cooling effect and machining precision are improved, the structural principle is simple, the manufacture cost and the maintenance cost are low, and use is convenient and reliable.

Description

【Technical field】 [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a machine tool spindle with an annular jet cooling device. 【Background technique】 [0002] In mechanical processing equipment, the main shaft is one of the most basic components of the machine tool. One end of the spindle is connected with a processing tool to process mechanical parts, and the other end is connected with a motor, which drives it to rotate or rise and fall. During mechanical processing, a lot of heat will be generated between the tool and the processing parts. If the heat is not removed in time, the tool will wear faster, or even be damaged or broken, which will seriously affect the machining accuracy. In the existing cooling device, an external cooling pipe is usually used to cool the tool, and its position during the machining process is fixed. The coolant flows from the top of the tool to the bottom of the tool. The flow rate of the co...

AI Technical Summary

Problems solved by technology

During mechanical processing, a lot of heat will be generated between the tool and the processing parts. If the heat is not removed in time, the tool will wear faster, or even be damaged or broken, which will seriously affect the machining accuracy.

In the existing cooling device, an external cooling pipe is usually used to cool the tool, and its position during the machining process is fixed. The coolant flows from the top of the tool to the bottom of the tool. The flow rate of the coolant is slow, and the cooling The ability is limited, and the purpose of flushing iron filings cannot be achieved, and it cannot meet the requirements for the use of high-speed and high-precision CNC machine tools

At the same time, some machine tool spindles use built-in cooling pipes, but there is a phenomenon of coolant splashing, resulting in low utilization of coolant and difficult to clean the machine tool

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