CN2150524Y

CN2150524Y - Measuring instrument for planeness tolerance

Info

Publication number: CN2150524Y
Application number: CN 93230467
Authority: CN
Inventors: 宋震野
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-22
Filing date: 1993-03-22
Publication date: 1993-12-22
Anticipated expiration: 2003-03-22

Abstract

The utility model discloses a measuring instrument for planeness tolerance, which relates to a measuring device which adopts mechanical methods and features. The measuring instrument for planeness tolerance is composed of a plane on the lower bottom, a sliding seat, the centre portion of which is provided with a through hole matched with a measuring rod, and a dial gauge which is fixed onto the sliding seat. The measuring rod on the lower part of the dial indicator passes through the hole matched with the measuring rod and is vertical to the lower surface of the sliding seat. The utility model has the characteristics of simple structure, convenient usage, and low cost.

Description

Measuring instrument for planeness tolerance

The utility model is a kind of flatness error measuring instrument, and relating to a kind of mechanical means that adopts is the metering outfit of feature.

In the production of many products, testing process, often need the flatness of measurement products.For example, the engine cylinder-body in the automobile just requires higher flatness, otherwise burns out its cylinder pad easily, also can cause engine to scrap when serious.Owing to also do not have the instrument of the comparatively easy measurement plane degree of a kind of operation at present, so in the middle of reality, people only do some rough measurements, even do not measure, thereby can not guarantee the quality of product.

The purpose of this utility model is: design a kind of simple in structure, cost is low, flatness error measuring instrument easy to use.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is the cut-open view of the present utility model that has limit base;

Fig. 2 is the vertical view of the square limit base of the utility model; Wherein, 1-dial gauge, 2-bulge loop, 3-screw, 4-measuring staff, 5-slide, 6-limit base, 7-measured surface.

The utility model is made up of slide ［ 5 ］ and the dial gauge ［ 1 ］ that is fixed on the slide ［ 5 ］. The lower surface of slide ［ 5 ］ is a plane, has a measuring staff to cooperate through hole, the upper surface of the slide corresponding with this hole site ［ 5 ］, the bulge loop ［ 2 ］ that has the side to be threaded the hole and to be connected with it on a certain position at its middle part. Dial gauge ［ 1 ］ inserts in the bulge loop ［ 2 ］, and be fixed in from the side on the slide ［ 5 ］ by a screw ［ 3 ］, its gauge outfit is positioned at slide ［ 5 ］ top, the side lever that its side lever ［ 4 ］ passes on the slide ［ 5 ］ cooperates through hole, and vertical with slide ［ 5 ］ lower surface, its lower end with contacted by side surface ［ 7 ］. For improving the accuracy of measuring or limiting measurement category, can be at the lower limit base ［ 6 ］ of placing of slide ［ 5 ］. Limit base ［ 6 ］ is preferably annular. Can select as required difform limit base during actual measurement. As when automobile engine cylinder-body is measured, only need a foursquare ring-type limit base ［ 6 ］. Upper and lower two planes at limit base ［ 6 ］ place, edge are parallel to each other.

When concrete the use, at first to according to circumstances proofread dial gauge ［ 1 ］. For concave surface, can directly use the slide ［ 5 ］ with dial gauge ［ 1 ］ to be placed on the tested plane ［ 7 ］. Comparatively complicated or will measure within the specific limits the time in the measured surface situation, will be at the lower limit base ［ 6 ］ of placing definite shape of slide ［ 5 ］, moving sliding base ［ 5 ］ on measured surface ［ 7 ］ or limit base ［ 6 ］ upper surface, the situation of measured surface ［ 7 ］ then, be reflected on the dial gauge ［ 1 ］ by measuring staff ［ 4 ］, thus the difference of definite measured surface peak and minimum point.

The utlity model has simple in structure, easy to use, the characteristics that cost is low.

Claims

1, a kind of flatness error measuring instrument is characterized in that: it comprises going to the bottom and is that plane, middle part have that measuring staff cooperates the slide [5] of through hole and the dial gauge [1] that is fixed on the slide [5] is formed; The measuring staff [4] of dial gauge [1] below passes measuring staff and cooperates through hole and vertical with slide [5] lower surface.

2, flatness error measuring instrument according to claim 1, it is characterized in that: have a side to be threaded the bulge loop ［ 2 ］ in hole on slide ［ 5 ］ the upper surface position corresponding with the measuring staff mating holes, dial gauge ［ 1 ］ inserts in the bulge loop ［ 2 ］ and is fixed with a screw ［ 3 ］.

3, flatness error measuring instrument according to claim 1 and 2 is characterized in that: there is a limit base ［ 6 ］ below of slide ［ 5 ］.