CN201522254U

CN201522254U - Perpendicularity calibrating device for holes

Info

Publication number: CN201522254U
Application number: CN2009202483167U
Authority: CN
Inventors: 白露; 胡馨月; 高元; 王立巍; 孙佳媛; 何圆圆; 方圆; 陈真; 刘燕; 窦英泽; 张昕
Original assignee: 白露
Priority date: 2009-11-20
Filing date: 2009-11-20
Publication date: 2010-07-07
Anticipated expiration: 2019-11-20

Abstract

The utility model belongs to a mechanical calibration apparatus, in particular to a perpendicularity calibrating device for holes, which comprises a calibrated work piece (1), bearings (2) and a dial gauge (6). A central upright column (5) is arranged at the center of an inner hole of the calibrated work piece (1), three tensioning devices (4) are fixedly and evenly distributed at the lower end of the central upright column (5), the outer end of each tensioning device (4) is provided with a bearing connecting shaft (3), the upper end and the lower end of the bearing connecting shaft (3) are respectively fixedly equipped with a set of bearings (2), all lateral faces of outer rings of the bearings (2) contact with the inner lateral face of the inner hole of the calibrated work piece (1), the upper end of the central upright column (5) is provided with a cross beam (7), and the dial gauge (6) and a locking screw (8) are arranged on the cross beam (7). The calibrating device realizes three-point stable positioning by three parallel connected tensioning devices of the central column, has low cost, wide application range and long service life, and completely meets requirements of calibration in batch production for enterprises.

Description

The verticality calibration equipment in hole

Technical field

The utility model belongs to mechanical quantity inspection utensil, particularly a kind of verticality calibration equipment of hole.

Background technology

At present, in the process of machining, the verticality verification in the hole of some parts is difficulty relatively, generally carry out verification by simple measurer, the accuracy of its verification is difficult to guarantee that for the verification in the demanding parts of some degree of accuracy hole, more general equipment is three-coordinates measuring machine, but its price is expensive, be difficult for popularizing, and the process of verification is cumbersome, the time is long, the technical skill personnel operation need be arranged, be difficult to popularize.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, and a kind of simple operation is provided, and checking precision is the verticality calibration equipment in hole accurately.

The technical scheme that the utility model technical solution problem adopts is: the verticality calibration equipment in hole comprises by verification workpiece, bearing, clock gauge; Be characterized in being provided with center stand column by the endoporus center of verification workpiece, the lower end of center stand column is uniform to be fixed with three tensioning system, the outer end of each tensioning system is provided with a bearing coupling shaft, each fixedly is equipped with a cover bearing upper/lower terminal of bearing coupling shaft, the side of the outer shroud of bearing all with by hole medial surface in the verification workpiece contacts, the upper end of center stand column is provided with crossbeam, and crossbeam is provided with clock gauge and lock screw.

The beneficial effects of the utility model are: the verticality calibration equipment in hole is realized 3 stable position by three tensioning system of newel parallel connection, and the auto-tensioning effect by tensioning system, make this device can be applicable to the verification in different apertures, cost is low, applied widely, long service life can satisfy the needs that enterprise produces verification in batches fully.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is the structure partial cut-open view of the verticality calibration equipment in hole.

Among the figure, 1-is by the verification workpiece; The 2-bearing; 3-bearing coupling shaft; The 4-tensioning system; The 5-center stand column; The 6-clock gauge; The 7-crossbeam; The 8-lock screw;

Embodiment

Embodiment, with reference to accompanying drawing 1, be provided with newel 5 by the endoporus center of verification workpiece 1, the lower end of newel 5 is uniform to be fixed with three tensioning system 4, the outer end of each tensioning system 4 is provided with a bearing coupling shaft 3, and each fixedly is equipped with a cover bearing 2 upper/lower terminal of bearing coupling shaft 3, and the side of the outer shroud of bearing 2 all with by hole medial surface in the verification workpiece 1 contacts and slides, the upper end of newel 5 is provided with crossbeam 7, and crossbeam 7 is provided with clock gauge 6 and lock screw 8.

The course of work of the verticality calibration equipment in hole is: what at first will process is positioned on anchor clamps or the platform reposefully by verification workpiece 1, then three tensioning system 4 of center stand column 5 parallel connections and web member bearing coupling shaft 3 thereof, bearing 2 are packed in the lump by in the hole in the verification workpiece 1 after assembling, because tensioning system 4 is for bearing 2 provides enough pressure, the outer shroud lateral surface that impels six cover bearings 2 with contacted closely by hole medial surface in the verification workpiece 1.Next regulates clock gauge 6, the contact that makes clock gauge 6 with tested perpendicular upper surface, 1 li hole of workpiece and directly contacted, rotate the scale dial plate of clock gauge 6 successively again, make pointer aim at the position at zero point of index dial, regulate clock gauge 6 and behind the position on the crossbeam 7, tighten lock screw 8 location.Use hand propelled crossbeam 7 at last, the contact that makes clock gauge 6 by verification workpiece 1 by the end face of verification on rotate a circle around the center, hole, observe and the beat of pointer scope of record clock gauge 6, determine by hole perpendicularity error in the verification workpiece 1.

Claims

1. the verticality calibration equipment in a hole comprises by verification workpiece (1), bearing (2), clock gauge (6); It is characterized in that being provided with center stand column (5) by the endoporus center of verification workpiece (1), uniform three tensioning system (4) that are fixed with in the lower end of center stand column (5), the outer end of each tensioning system (4) is provided with a bearing coupling shaft (3), each fixedly is equipped with a cover bearing (2) upper/lower terminal of bearing coupling shaft (3), the side of the outer shroud of bearing (2) all with by hole medial surface in the verification workpiece (1) contacts, the upper end of center stand column (5) is provided with crossbeam (7), and crossbeam (7) is provided with clock gauge (6) and lock screw (8).