Spindle axis cooling device of numerical control machine
A technology of cooling device and CNC machine tool, which is applied in metal processing mechanical parts, maintenance and safety accessories, metal processing equipment, etc., can solve the problems of inability to cool the inner ring of the main shaft, and achieve the effect of convenient cooling and improved anti-torsion ability
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[0011] The present invention will be further described below in conjunction with the drawings and specific embodiments to help understand the content of the present invention.
[0012] Such as figure 1 As shown, the present invention is provided with a spindle shaft inner sleeve 2. The outer surface of the spindle shaft inner sleeve 2 is machined with spiral grooves, which can store and circulate cutting fluid. The spindle shaft inner sleeve 2 is sleeved with a spindle The shaft outer sleeve 1, the spindle shaft outer sleeve 1 and the spindle shaft inner sleeve 2 adopt interference fit. After the two parts are turned, the spindle shaft outer sleeve 1 is heated and the spindle shaft inner layer Set 2 is assembled into an integral part, and then the integral heat treatment, precision grinding and assembly are carried out. Then the end of the spindle shaft outer sleeve 1 and the spindle shaft inner sleeve 2 are equipped with a water distribution gland 4 and a sealing ring 5, throug...
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