CN2096041U

CN2096041U - Simple angle measurign device

Info

Publication number: CN2096041U
Application number: CN 91216897
Authority: CN
Inventors: 纪易成
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-28
Filing date: 1991-06-28
Publication date: 1992-02-12

Abstract

The utility model relates to a simple angle measuring device. A major claw structure and the minor claw structure of a vernier caliper are used as the main structure of the simple angle measuring device. A positioning post hinged angle measuring plate is arranged on the minor claw, a hold protection edge is arranged on a position of the minor claw which is the relative position to the circular arc end of the angle measuring plate. A return-to-zero bolt arranged on the hold protection edge can propped the end of the angle measuring plate in order that the measuring surface of the angle measuring plate can be parallel with the measuring surface of the major claw. When a workpiece with a certain angle is measured, one side of the measured workpiece is used as the reference edge. The measuring surface of the angle measuring plate of the minor claw can be tightly pasted on the workpiece when the measuring surface of the major claw is propped up, and the angle measuring plate is driven by pushing the minor plate. The angle of the workpiece between the major claw and the minor claw can be quickly and conveniently read out according to the deflection angle of the angle measuring plate.

Description

Simple angle measurign device

The utility model relates to a kind of plain type angle measurement unit, mainly establishes measuring plate on the secondary pawl of vernier caliper, reaches the purpose of simple measuring workpieces angle by the angle of measuring plate deflection.

By at present in order to the structure of the vernier caliper of measuring length, width and the degree of depth, the main secondary pawl that on the axial prong of a L shaped shape, is nested with, with major and minor pawl clamping or hold measured object, can be by scale corresponding on the axial prong, and know the measurement data of length, width or the degree of depth; And more new-type slide calliper rule are for improving the accuracy of measuring, be on secondary pawl, to establish scale with tolerance with respect to the scale place of axial prong, use and reduce to minimum measuring the error that is caused, recently more see in the mode of electronics demonstration and measure, the precision of vernier caliper is carried to the highest, and can be easily by reading the result who measures on the display, and similar vernier caliper is for measuring length, width, the degree of depth and circle footpath equidimension, all very convenient, when taking measurement of an angle, then because of there not being suitable clamping device, so measure quite inconvenience, promptly in the time will measuring the angle that a workpiece ramp had, often must select a reference field earlier, again in two measured places with suitable spacing each with vernier caliper measurement by the height of reference field to the inclined-plane, with the length of two measuring height differences divided by two measured place spacings, through after the computing of trigonometric function, can learn the angle that this inclined-plane is folded, bother very much, and because the measuring process of process is more, the accumulation of the error that causes will enlarge whole error, and the numerical value of measurement is difficult for accurately.

The utility model can will contain the object being measured on angle inclined-plane by the simplest structure, directly measure its bevel angle value, thereby reduce the number of times of measuring, and increase the convenience of using and improve the accuracy of measuring.

Fundamental purpose of the present utility model is: a kind of easy angle measurement unit is provided, deflection by set measuring plate on the secondary pawl of vernier caliper, can directly measure the angle of tested workpiece ramp, make the surveying work of whole angle easy and simple to handle, rapidly correct.

Primary structure design of the present utility model, for the structure that cooperates vernier caliper is used, on secondary pawl, cooperate the hinged measuring plate of a C shape collar with a reference column, secondary pawl is provided with the maintaining edge of protrusion with respect to the arc end of measuring plate, maintaining edge is established the bolt that makes zero of a cooperation positioning screw cap away from the end of axial prong, can make the measurement face of measuring plate with respect to axial prong, before measurement, keep measuring the parallel state of face with axial prong, and when measuring, make measuring plate measurement face be close to the inclined-plane of measured workpiece, making measuring plate is the corresponding angle of a deflection with reference column, and by relative variable quantity between arc end and maintaining edge, records the workpiece slope angle value.

For further specifying structure of the present utility model, feature and practical purpose, following conjunction with figs. elaborates:

Graphic explanation part:

Fig. 1 is a stereo appearance figure of the present utility model;

Fig. 2 is a stero exploded view of the present utility model;

Fig. 3 is secondary pawl of the present utility model and measuring plate combination diagrammatic cross-section;

Fig. 4 measures the floor map of double inclined plane workpiece for the utility model;

Fig. 5 measures the action plane figure of double inclined plane workpiece for the utility model;

Fig. 6 measures the floor map of monocline face workpiece for the utility model;

As shown in Figure 1, 2, the utility model mainly cooperates the setting of vernier caliper 10, vernier caliper 10 has a L-shaped axial prong 20 and the sliding secondary pawl 30 on axial prong 20 horizontal ends of a cover, axial prong 20 is established measurement face 21 with respect to secondary pawl 30 ora terminalis, protrude out a cylindrical reference column 31 on secondary pawl 30 1 end faces, one tabular measuring plate 40 wears thereon, and cooperates a C shape collar 32 to anchor the end that passes measuring plate 40 in reference column 31, and measuring plate 40 promptly is articulated on the reference column 31.

The end that measuring plate 40 slightly protrudes secondary pawl 30 with respect to the ora terminalis of the measurement face 21 of axial prong 20, and be provided with the measurement face 41 that is parallel to measurement face 21, this measurement face 41 stretches out and pull in the top of transferring into tip-angled shape end 42, in addition end is that the arc end 43 of center camber joins with one with reference column 31 then, arc end 43 has suitable arc chord angle scale, and on secondary pawl 30 end faces with respect to arc end 43 outer rim places, protrude out the maintaining edge 33 of providing identical arc and length, the central position of maintaining edge 33 is established the baseline 330 of relative arc end 43 scales, and maintaining edge 33 is located away from measuring plate 40 measurement faces 41 ends, be provided with the bolt 34 that makes zero, bolt 34 interior cover unification springs 35 back screw-in maintaining edges 33 make zero, make the bolt 34 that makes zero to obtain certain fixed effect, and the bolt 34 that makes zero passes the end of maintaining edge 33, can push up end, can keep measurement face 41 to be parallel to axial prong 20 measurement faces 21 when not measuring the inclined-plane to measuring plate 40 arc ends 43.

In addition in the end face of measuring plate 40 with respect to secondary pawl 30, pass the periphery at place for reference column 31, be arranged with the spring groove 44 of a circle, as shown in Figure 3, can enclose the spring 45 of putting reference column 31 on the spot for one is located at therebetween, insert in secondary pawl 30 and measuring plate 40 respectively at the two ends of spring 45, makes measuring plate 40 have the strength of top to bolt 34 ends of making zero.

The utility model measuring plate 40 is subjected to the restriction of the restoring force of spring 45 and the bolt 34 that makes zero when not measuring, the measurement face of making 41 keeps and the parallel state of axial prong 20 measurement faces 21, can be for measuring length, the width and the degree of depth, also can do the measurement of inclined-plane angle, as Fig. 4, shown in 5, when measurement has bibeveled workpiece 50, can selecting wherein, an inclined-plane is a reference field 51, another inclined-plane to be measured is measured 52, the measurement face 21 of reference field 51 being close to axial prong 20, as shown in Figure 4, pass secondary pawl 30 again, pull end 42 and measuring workpieces 50 measured 52 of the top of measuring plate 40 contacted, continuing to promote secondary pawl 30 makes the top pull end 42 by being held by measuring surface 52, no longer mobile, measured 52 anti-ejection pulled holds 42 pairs of measuring plates 40 to produce a moment, measuring plate 40 serves as that axle rotates counterclockwise compression spring 45 simultaneously with reference column 31, measurement face 41 begins to press close to measured 52, after being close to measured 52 fully for to be measured 41, as shown in Figure 5, can be by the variable quantity of measuring plate 40 high scales with respect to maintaining edge 33 baselines 330, read the angle of 51 of measured 52 and reference fields, if reference field 51, measured 52 identical with measuring workpieces 50 axle center angles, can be with the variable quantity read divided by 2, directly calculate the angle in two sides and axle center, by above-mentioned metering system, can record the tapering of tested conical objects easily.

Working as measuring workpieces 50 again is the form of monocline, as shown in Figure 6, measured object 50 can be with straight end face as reference field 51, the inclined-plane then is measured 52, heavily cover the described course of action of leading portion, by 330 relative variable quantities of measuring plate 40 arc ends 43 scales and maintaining edge 33 baselines, can measure the angle between inclined-plane and flat face; And after measuring end, secondary pawl 30 can be pushed back, former compressed spring 45 recovers immediately, and measuring plate 40 is pushed back to the end top of arc end 43 and the bolt 34 that makes zero, and makes the measurement face 41 of measuring plate 40 return back to the state that is parallel to axial prong 20 measurement faces 21.

Claims

1, a kind of plain type angle measurement unit comprises the axial prong and the secondary pawl of a sliding sleeve on the axial prong horizontal ends of vernier caliper, and axial prong is established measurement face with respect to secondary pawl ora terminalis, it is characterized in that:

Secondary pawl one end face is convexly equipped with a reference column, pass measuring plate, the outstanding secondary pawl ora terminalis of measuring plate is established and is parallel to the measurement face that axial prong is measured face, the extension of measurement face one end is bent into pushes up the end of pulling, the other end connects a camber shape arc end, secondary pawl end face has the maintaining edge of suitable arc with respect to arc end outer rim place outstanding, a relative baseline and the scale that be provided with of maintaining edge with the measuring plate arc end, maintaining edge is established one away from place, the end of measuring plate measuring junction and is held the measuring plate end, makes the measurement face of measuring plate remain parallel to the bolt that makes zero of the measurement face of axial prong at ordinary times.

2, plain type angle measurement unit as claimed in claim 1 is characterized in that: in addition sheathed one make the bolt that makes zero positively be fixed in spring on the maintaining edge on the bolt that makes zero.

3, plain type angle measurement unit as claimed in claim 1, it is characterized in that: measuring plate is arranged with a spring groove on for the end face of the secondary pawl reference column place of passing with respect to secondary pawl, be provided with the spring that measuring plate is leaned to the bolt that makes zero that a circle is around in reference column in the spring groove, both ends of the spring inserts measuring plate and secondary pawl respectively.