A method of repairing a lathe tailstock

Abstract

The invention discloses a method for repairing the tailstock of a lathe, which includes: fixing the tailstock body with the tool holder carriage; The boring tool of the tailstock body is expanded in diameter; the repair kit is embedded in the hole of the tailstock body after the diameter expansion, and the boring tool of the second preset size is replaced to repair the hole of the repair kit. The inner wall is bored; wherein, the first preset size is greater than the second preset size, and the second preset size matches the outer diameter of the tailstock sleeve. The method for repairing the tail stock of the lathe provided by the invention can improve the repair accuracy of the tail stock of the lathe and reduce the repair cost.

Description

technical field [0001] The invention relates to the field of machine tools, in particular to a method for repairing a lathe tailstock. Background technique [0002] When the tailstock of the lathe is severely worn, cannot meet the technical requirements of the tailstock design, and cannot meet the requirements of the processed product at all, there are usually two methods to restore the accuracy of the tailstock, one is to replace the new tailstock, and the other is to repair the tailstock. seat. Replacing a new tailstock Since the center height of the tailstock of the same type of lathe is not the same, it is necessary to readjust the center height of the new tailstock. By adjusting the height of the tailstock installation base plate for repairing and scraping, the center of the tailstock hole is in line with the lathe spindle hole. The center meets the requirements of coaxiality and parallelism with the guide rail of the lathe; it is necessary to purchase accessories from...

AI Technical Summary

Problems solved by technology

When boring the tailstock body hole, it is necessary to find out the original design and installation reference axis line of the tailstock body hole during clamping, and correct the tailstock so that the processing axis line coincides with the original axis line. If there is no coincidence, the central height of the bored tailstock body hole and the parallelism requirements with the guide rail cannot be guaranteed, so that the repaired tailstock cannot meet the accuracy requirements

The severity of the wear of the tailstock body hole varies, which increases the difficulty of correction

In particular, the bed guide rail and tailstock installation guide rail of the slant bed CNC lathe form an angle of 45° with the horizontal line. It is generally extremely difficult to ensure the axis line of the boring hole when the tailstock is removed from the CNC lathe and clamped to the boring machine for the second time. It coincides with the original axis line of the tailstock body hole, which leads to the reduction of the repair accuracy of the tailstock hole, and the re-wear speed of the tailstock after repair is accelerated, which increases the cost of tailstock repair

After the tailstock body hole is bored, a sleeve with a corresponding diameter is selected according to the diameter of the tailstock body hole. The original sleeve cannot be reused, which increases maintenance costs

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