Sealed ball screw sliding table

Abstract

The invention discloses a sealed ball screw sliding table. A sliding seat is supported on a longitudinal roller path of a sliding rail in a rolling manner, and the sliding seat is driven by a ball screw to do longitudinal reciprocating motion along the sliding rail. The sliding seat comprises an outer sliding seat and an inner sliding seat, and the inner sliding seat is integrally provided with a guide roller path and a spiral roller path. The inner sliding seat is provided with a longitudinal ball returning device and a spiral ball returning device, and the functions of guiding support and spiral transmission can be achieved at the same time; the use of a conventional ball nut is reduced, and the production cost and installation difficulty are reduced; and improvement of the product precision is facilitated. An arch-shaped groove is formed in the outer sliding seat, a dustproof steel belt passes through the groove, and meanwhile installation space for an external load, a sensor, an oil injector and the like is provided. Main components of the inner sliding seat and the outer sliding seat are made of corresponding appropriate materials with heat treatment processes according to use requirements, and therefore unnecessary heat treatment cost and material waste are reduced.

Description

Technical field [0001] The present invention relates to a ball screw slide sealingly BACKGROUND specifically means a sealed ball screw slide. Background technique [0002] Automation equipment and automation production line has a great demand for the ball screw slide sealed. Generally sealed using a screw slide carriage, thanks to the strip of sealing slide, thus designed for the steel strip through a recess on the carriage structure, since the carriage had to additional relief of the rails is magnetic steel structure, also had to slide the middle concave, which led to slide into a very irregular structure on the form. Preparation of raw material slide either forging process, extrusion molding process or casting process takes large costs are required. [0003] Further, the ball screw slide sealed existing on the market are based on the body movement of the cassette carriage to drive a ball nut in the carriage, the ball nut using a pin positioning force transmission assembly of th...

AI Technical Summary

Problems solved by technology

The general sealed screw slide table adopts a sliding seat. Since the steel belt is used to seal the sliding table, the structure of the sliding seat is designed with a groove for the steel belt to pass through. The magnetic structure of the steel belt, so the middle part of the slider has to be concave inward, which leads to an extremely irregular structure in the shape of the slider

The preparation of the raw material of the slider body requires a large cost no matter whether the forging process, casting process or extrusion process is adopted

[0003] In addition, the existing sealed ball screw slides on the market all use a ball nut embedded in the slide body to drive the movement of the slide. The ball nut uses pin positioning to transmit force. This structure is not only difficult to assemble, but also has The risk of loosening and slipping, and because the installed ball nuts are generally non-standard structures, the processing or purchasing costs are also greater

Images