JPH049241U

JPH049241U -

Info

Publication number: JPH049241U
Application number: JP4918090U
Authority: JP
Priority date: 1990-05-10
Filing date: 1990-05-10
Publication date: 1992-01-27

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す平面図、第
２図は第１図の−断面を示す断面図、第３図
はワークを第１図の実施例のクランプユニツトで
定盤に位置決め固定した状態を示す平面図、第４
図は台形形状のワークをクランプユニツトで定盤
に位置決め固定した状態を示す平面図、第５図は
複雑曲線形状のワークをクランプユニツトで定盤
に位置決め固定した状態を示す平面図、第６図は
従来のクランプユニツトを示す平面図、第７図は
第６図の−断面を示す断面図、第８図はワー
クをクランプユニツトで定盤に位置決め固定した
状態を示す平面図である。図において、２……フツククランプ、３……六
角穴付きボルト、４……圧縮ばね、５……ワーク
、６……定盤、６ａ……Ｔ溝、１１……位置決め
ブロツク、１１ｃ……ボルト穴、１１ｂ……ガイ
ド穴、１１ｃ……ねじ穴、１１ｅ……第二の基準
面、１５……ワーク、２１……スペーサ、２１ｄ
……第一の基準面、２５……ワークである。なお
、各図中、同一符号は同一または相当部分を示す
。 Fig. 1 is a plan view showing an embodiment of this invention, Fig. 2 is a sectional view showing the - section of Fig. 1, and Fig. 3 is a workpiece positioned on a surface plate using the clamp unit of the embodiment shown in Fig. 1. Plan view showing fixed state, 4th
The figure is a plan view showing a trapezoid-shaped workpiece positioned and fixed on a surface plate by a clamp unit, Figure 5 is a plan view showing a state in which a complex curved workpiece is positioned and fixed on a surface plate by a clamp unit, and Fig. 6 7 is a plan view showing a conventional clamp unit, FIG. 7 is a cross-sectional view taken along the line -- in FIG. 6, and FIG. 8 is a plan view showing a workpiece positioned and fixed on a surface plate by the clamp unit. In the figure, 2...Hook clamp, 3...Hexagon socket head bolt, 4...Compression spring, 5...Workpiece, 6...Surface plate, 6a...T groove, 11...Positioning block, 11c...Bolt Hole, 11b... Guide hole, 11c... Screw hole, 11e... Second reference surface, 15... Workpiece, 21... Spacer, 21d
. . . first reference plane, 25 . . . workpiece. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A positioning block having a first reference surface parallel to the base surface and a second reference surface perpendicular to the base surface, placed on a surface plate with the base surface facing down, and fixed using the T groove of the surface plate. Attach a hook clamp that is movable in the direction of an axis perpendicular to the base surface and rotatable around the axis, and place the lower end of the workpiece on the first reference surface. , in which the side surface of the workpiece is brought into contact with the second reference surface, and the workpiece is held down and fixed by the hook clamp, wherein a circular surface centered on the axis is the second reference surface; A clamp unit characterized in that the upper end surface of a cylindrical spacer that fits into a circular surface and is detachable is used as the first reference surface.