Dovetail groove guide rail locking device and mounting and adjusting method

Abstract

The invention discloses a dovetail groove guide rail locking device and a mounting and adjusting method. The dovetail groove guide rail locking device comprises a piston mechanism, a rotating shaft, a coarse adjustment nut and a fine adjustment hand wheel, wherein a piston is a combination of a wedge block and a cylinder, the upper side and the lower side of the wedge block are embedded into a through straight groove in the middle of one side of a dovetail groove, a piston rod transversely penetrates through a through hole in the side face of a through dovetail groove body, and a belleville spring set is embedded into a counter bore of the dovetail groove and the belleville spring set is positioned in the counter bore of the dovetail groove through the round nut. One end of the rotating shaft is in threaded connection with the end of the piston rod, and the other end of the rotating shaft sequentially penetrates through the coarse adjustment nut and the fine adjustment hand wheel and is fixed in a fine adjustment hand wheel counter bore in one end of the fine adjustment hand wheel through the fastening nut. The mounting and adjusting method comprises the steps: (1) mounting the piston mechanism, the coarse adjusting nut, the rotating shaft and the fine adjusting hand wheel, and (2) completing gap adjustment of the dovetail block and the dovetail groove. Coarse adjustment and fine adjustment are conducted through the coarse adjusting nut and the fine adjusting hand wheel which are arranged together in a sleeved mode, so that it is quite convenient to use, and the adjusting efficiency of the gap between the dovetail block and the dovetail groove is improved.

Description

technical field [0001] The invention relates to a dovetail groove guide rail device, in particular to a device and an installation adjustment method for preventing looseness between a dovetail block and a dovetail groove after long-term use due to increased gaps, and belongs to the technical field of guide rail transmission. Background technique [0002] The dovetail groove guide rail pair is composed of a dovetail block and a dovetail groove body. The dovetail block is embedded in the dovetail groove. There are two installation types: the dovetail block above the dovetail groove or the dovetail block below the dovetail groove. Because of its smooth movement and high precision, it is widely used in various instruments and equipment. The dovetail block and the dovetail tank are generally made of steel or cast iron. During long-term use, there will be different degrees of wear between the contact surfaces of the two, and the increase in the gap will affect the accuracy of the ...

AI Technical Summary

Problems solved by technology

However, with the long-term operation of the dovetail guide pair, the wedge insert may move to one side and be damaged, seriously affecting the transmission accuracy of the dovetail guide pair

In addition, when the dovetail groove guide rail pair adopts the installation type with the dovetail groove facing up and the dovetail block facing down, generally a structure is used to increase the friction force between the two to prevent the free sliding of the dovetail block, but it is difficult to adjust the friction force accurately and conveniently. It affects work efficiency and has potential safety hazards

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