Lengthened head structure of main shaft of double-sided vehicle

Abstract

The invention provides a lengthened head structure of a main shaft of a double-sided vehicle, comprising a main shaft box and a lengthened head, wherein a rotating main shaft is arranged in the main shaft box; the main shaft box comprises a box body and clamping mechanisms which are arranged at two ends of the box body and can be used for detaching, radially clamping or loosening among the box body; two ends of the lengthened head are respectively and detachably connected with the main shaft box and the clamping mechanisms; a lengthened shaft matched with the rotating main shaft of the main shaft box is arranged in the lengthened head; and two ends of the lengthened shaft are respectively connected with the rotating main shaft and the clamping mechanisms. According to the invention, when parts with different shaft lengths to be processed are processed by the double-sided vehicle, the parts with larger processing shaft lengths to be processed are processed by selecting and matching lengthened heads in different sizes; after being matched with the lengthened head, the main shaft box has favorable rigidity and high precision and is quick and convenient for installing and debugging; and after the precision of the main shaft box is corrected, the precision of the main shaft box per se cannot be influenced after replacing the lengthened heads in different sizes, wherein the lengthened heads are matched with the main shaft box, and the clamping mode of the parts to be processed after the lengthened heads are additionally arranged is consistent with the clamping mode when the main shaft box is used for clamping independently.

Description

technical field [0001] The invention relates to the technical field of double-sided turning machining extension shafts, in particular to a spindle extension head structure applied to double-sided turning. Background technique [0002] Lathe fixtures are fixtures used on lathes to clamp workpieces to be processed. Existing domestic and foreign double-sided (end) lathes can process parts by lengthening the box on both sides of the thin headstock. However, due to the low rigidity of the thin headstock, each side of the thin headstock can only be lengthened by a short distance, for example If the length is increased by 50mm, two spindle boxes must be installed when processing parts with a length of more than 350mm, which not only makes the cost higher, but also has insufficient machining accuracy and makes installation and debugging difficult. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a double-sided car spindl...

AI Technical Summary

Problems solved by technology

Existing domestic and foreign double-sided (end) lathes can process parts by lengthening the box on both sides of the thin headstock. However, due to the low rigidity of the thin headstock, each side of the thin headstock can only be lengthened by a short distance, for example If the length is increased by 50mm, two headstocks must be installed when processing parts with a length of more than 350mm, which not only makes the cost higher, but also has insufficient machining accuracy, making installation and debugging difficult

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