Guide column guiding mechanism capable of adjusting taper

Abstract

The invention discloses a guide column guiding mechanism capable of adjusting taper, relating to a press machine. The guide column guiding mechanism comprises a guide column and a guide sleeve, wherein the guide sleeve comprises a fixed sleeve, a taper sleeve and big nuts and round nuts for adjusting the position of the taper sleeve; the fixed sleeve is fixed on a machine body; the inner bore of the fixed sleeve is a taper bore; the inner bore of the taper sleeve is connected with the guide column through sliding fit; the excircle of the taper sleeve is divided into three sections: the middle section is taper-shaped and is connected with the fixed sleeve through sliding fit; the upper and lower sections of the taper sleeve are external threads; the big nuts and the round nuts are installed on the threads; A plurality of upper and lower grooves with upper and lower ends limited are uniformly distributed in the middle of the taper sleeve and penetrate through the wall thickness of the taper sleeve; the taper sleeve is ensured to move in the fixed sleeve axially by adjusting the big nuts and the round nuts; the gap between the middle section of the taper sleeve and the guide column is adjusted by utilizing the shrinkability characteristic of the upper and lower grooves of the taper sleeve; an oil filling bore is arranged at one side of the taper sleeve; an oil filling nozzle is arranged at the outer end of the oil filling bore; and seal rings are arranged on the contact parts of the big nuts and the guide column, thus ensuring the guide column guiding mechanism to have good lubrication.

Description

technical field [0001] The invention relates to a press machine, in particular to a guide post guide mechanism with adjustable taper used for the reciprocating movement of the slide block of the press machine. Background technique [0002] At present, there are three main forms of using guide posts and guide sleeves as guiding mechanisms: 1. Ordinary bearing structure 2. Hydrostatic bearings 3. Linear rolling bearings. The second method has very high requirements on the processing of parts, and it needs to provide pumping stations and excellent sealing devices. It has high requirements on equipment, assembly, processing, etc., and it is uneconomical to use for general non-important parts. The third method is easy to process and works well, but limited by linear bearings, large-sized ones are rare at this stage, and basically imported products with good craftsmanship and technology, there are still problems in large-scale adoption at this stage. The first method has been ado...

AI Technical Summary

Problems solved by technology

The second method has very high requirements on the processing of parts, and it needs to provide pumping stations and excellent sealing devices. It has high requirements on equipment, assembly, processing, etc., and it is uneconomical to use for general non-important parts.

The third method is easy to process and works well, but it is restricted by linear bearings. At this stage, large-scale ones are rare, and the products with good craftsmanship and technology are basically imported products. There are still problems in large-scale adoption at this stage.

The first method has been adopted on a large scale now, but problems such as wear, burns, and roughening often occur during use. After trimming, the gap between the guide post and the guide sleeve will become larger, making the guide accuracy more and more Difference

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