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[CN 202110875531.5] Axial precision clearance control structure and method for heavy-duty ball screw of press
[CN 202110875531.5] a kind of press heavy-duty ball screw axial precision clearance control structure and method title: a kind of press heavy-duty ball screw axial precision clearance control structure and method application number: CN 202110875531.5 applicant: Wuhan xinweiqi technology co., ltd. application date: 2021-7-30 patent type: invention application the present invention discloses a kind of press heavy-duty ball screw axial precision clearance control structure and method, the structure includes a crescent grinding washer, a lock nut and a crescent locking snap ring arranged on the external thread of the top of the heavy-duty ball screw of the press in sequence from bottom to top. The side of the lock nut is provided with an annular groove, and the crescent locking snap ring is provided with a boss matching the annular groove. The crescent locking snap ring is fixed on the rotor of the press to surround the crescent grinding washer; the invention observes whether the movement of the heavy-duty ball screw and the sliding block is stable and smooth through the dial indicator data of the upper end surface of the heavy-duty ball screw, and then repeatedly grinds the upper surface of the crescent locking snap ring and the crescent grinding washer in the same amount. The axial clearance of the upper end surface of the heavy-duty ball screw is controlled within the minimum range; the invention has simple structure, convenient and quick operation, greatly improving the accuracy and efficiency.
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