Numerical control drilling machine spindle precision rapid adjusting device and method

Abstract

The invention discloses a numerical control drilling machine spindle precision rapid adjusting device. The numerical control drilling machine spindle precision rapid adjusting device comprises more than two sets of spindle motors, rotating shafts, spindle boxes and power heads, wherein all the spindle boxes are arranged on a spindle box fixing plate through guide rail pairs and fastening bolts, and the spindle box fixing plate is connected with a feeding motor through a lead screw-nut pair; all the power heads are arranged on a power head fixing plate through the guide rail pairs and the fastening bolts; a positioning plate is fixedly arranged between the spindle box fixing plate and the power head fixing plate, and two ends of more than two rear detection rods are correspondingly arrangedin a positioning plate and inner holes of the rotating shafts; and more than two front detection rods penetrate through the rear ends of the power heads and are respectively arranged in an inner holeof the positioning plate, and the front detection rods are sleeved with positioning sleeves. The invention further discloses a numerical control drilling machine spindle precision rapid adjusting method. According to the numerical control drilling machine spindle precision rapid adjusting device and method, the spindle precision adjustment period can be greatly shortened, and not only is the spindle precision adjustment efficiency improved, but also the adjustment precision can be greatly improved.

Description

technical field [0001] The invention relates to a device and method for quickly adjusting the precision of a spindle of a numerically controlled drilling machine. Background technique [0002] Boiler auxiliary equipment such as high-pressure heaters, low-pressure heaters, nuclear power, chemical heat exchangers and other product tube sheets are drilled using biaxial or triaxial CNC deep hole drilling equipment. Taking the biaxial CNC deep hole drilling machine as an example, the equipment includes Two sets of spindle systems, each spindle system includes a spindle motor, a rotating shaft, a headstock and a power head, and the BTA drill pipe passes through the rotating shaft and the power head, and the straightness and parallelism of the drill pipe are determined and guaranteed by the rotating shaft and the power head Accuracy such as degree and pitch, so as to ensure the drilling accuracy of the product; when the product processing technology adjustment needs to change the p...

AI Technical Summary

Problems solved by technology

The traditional adjustment method is to rely on maintenance personnel to use tools such as detection rods, dial indicators, and micrometers. According to the traditional adjustment method of machine tool spindle accuracy, firstly adjust the pitch between the two sets of rotating shafts and power heads, and then gradually adjust the pitch. The rotation axis of the two sets of spindles, the front and rear coaxiality of the power head, straightness, and the parallelism and pitch of the two sets of spindles are carefully adjusted. The adjustment process is very complicated and slow, requiring very high skills and experience for maintenance personnel. Spindle precision adjustment takes 7 days, not only the adjustment efficiency is low, but also the precise adjustment is greatly affected by personnel factors, and the adjustment accuracy is difficult to guarantee

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