JPS60178552U

JPS60178552U - Feed nut mechanism of table drive device

Info

Publication number: JPS60178552U
Application number: JP6609884U
Authority: JP
Inventors: 西田　与一
Original assignee: 株式会社不二越
Priority date: 1984-05-08
Filing date: 1984-05-08
Publication date: 1985-11-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例の断面図、第２図は第１図Ａ
−Ａ線による断面図、第３図は板ばねの斜視図、第４図
は従来品の部分断面図、第５図は第４図Ｅ％−Ｂ線によ
る部分断面図である。１１・・・テーブル、１２．１３・・・脚部、１４・・
・ねじ軸、２０・・・ナツト、２１・・・ナツト本体、
２８・・・すべり案内面、３０ａ、３０ｂ・・・板ばね
、３４・・・ナツト取付溝。Figure 1 is a sectional view of an embodiment of this invention, and Figure 2 is Figure 1A.
3 is a perspective view of a leaf spring, FIG. 4 is a partial sectional view of a conventional product, and FIG. 5 is a partial sectional view taken along line E%-B in FIG. 4. 11...Table, 12.13...Legs, 14...
・Screw shaft, 20... Nut, 21... Nut body,
28... Sliding guide surface, 30a, 30b... Leaf spring, 34... Nut mounting groove.

Claims

[Scope of utility model registration request]

(1) A table having a guide surface to be subjected to static pressure, a nut provided at the bottom of the table, and a screw shaft rotatably supported by a pair of legs screwed into the nut and having both ends erected on the base. and a prime mover connected to the screw shaft to rotate the screw shaft, the nut being built into the nut body and biased in the axial direction to eliminate play between the screw shaft and the nut. , a bracket having a nut mounting groove opened downward across the screw shaft is fixed to the lower surface of the table, the nut mounting groove has a pair of vertical sliding guide surfaces parallel to the thread groove, and the nut is fitted on the inner surface. The nut body having a hole is slidably fitted to the sliding guide surface of the bracket with a slight play in the vertical direction, and the upper and lower surfaces of the bracket and the upper and lower surfaces of the nut body are respectively connected via leaf springs. The feeding nut mechanism of the table driving device is a feature.

(2) The feed nut mechanism for a table driving device according to claim 1, wherein the leaf spring is arranged equidistantly from the shaft center of the seat.