CN2103119U

CN2103119U - Universal angle comparator

Info

Publication number: CN2103119U
Application number: CN 91200967
Authority: CN
Inventors: 崔全德
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-01-16
Filing date: 1991-01-16
Publication date: 1992-04-29

Abstract

The utility model discloses a new universal angle comparator, relating to a new measuring instrument used for the comparative measurement and the direct measurement of angles in manufacture industry. The utility model is mainly composed of a basal ruler, a bearing stand, a clock stand, an auxiliary clock clamp, a clock clamp, a reed, a main ruler, a straight edge ruler, a bearing, a locking screw, connecting pieces, a gauge, etc. The utility model is characterized in that the theory of comparative measurement is used to display the difference value within the range of 100 millimeter length of the measured angles and the angles of standard pieces by the gauge to carry out the measuring work. The measuring accuracy can reach the same level of the measurement of a sine protractor. Simultaneously, the vernier scale of the comparator can carry out direct measurement of the angles. By the combination of accessories, the range of measurement of the comparator can reach 360 DEG (each of the inner angle and the outer angle is respectively 180 DEG).

Description

Universal angle comparator

The utility model relates to the processing and manufacturing industry to the measurement of comparing property of angle, a kind of novel angle measuring instrument that also can directly measure.

At present, the processing and manufacturing industry instrument that takes measurement of an angle commonly used mainly contains: universal protractor, sine gauge.The people of processing industry know altogether: only 320 ° of universal protractor measurement ranges, indicating value be 2 '.Owing to belong to vernier class principle, and the printing opacity slit is to decide with range estimation and sensation when measuring, so, there is bigger apparent value error; Sine gauge has high measuring accuracy, but be unable to do without test flat plate when measuring, can not use at processing site, and inefficiency, incompatible requirements of one's work in enormous quantities are unsuitable for the detection of large and medium-sized part, and measurement result also needs trigonometric function operation.

The purpose of this utility model is: the deficiency that overcomes above-mentioned prior art, provided a kind of both being adapted on the measurement flat board, to measure, be applicable to again at processing site and measure, measurement range reaches 360 ° (interior exterior angles each 180 °), more is applicable to the high precision that batch process needs (when being used for comparative measurement and sine gauge equal accuracy), high efficiency angle measuring instrument.

Formation of the present utility model:

This omnipotent angle comparator is by main part base chi (Fig. 1-1), bearing bracket stand (Fig. 1-2), dial framework (Fig. 1-3), supplementary table folder (Fig. 1-4), table folder (Fig. 1-5), reed (Fig. 1-6), main scale (Fig. 1-7); Annex: parts such as straight edge ruler, try square, bearing, lock-screw, scale are formed.Dial framework and bearing bracket stand are connected as a single entity; The swing at each 1 ° of angle about main scale can be done dial framework around the bearing bracket stand center; The base chi can be done ± 91 ° of rotations around the bearing bracket stand center, can be by lock-screw and dial framework locking on the position of needs, and 90 ° of V-type grooves on the basic chi can play the guiding role when surveying cone; The bearing bracket stand center is 100 millimeters to dial gauge bar centre distance, makes this comparator can measure the angle of part, tapering, gradient, the error amount of verticality in 100 millimeters long scopes; Base chi, dial framework be carved with respectively on the circumference of (Fig. 1) at K ± 91 ° and 2 ' the vernier graduation line, make this comparator directly measure or compare and measure to the unspecified angle at 360 ° (each 180 ° at inside and outside angles); Annex: straight edge ruler, try square etc. can combine with comparator as required to adapt to the measurement of various angles; The table folder presss from both sides the scale that can adapt to the different strokes of clamping with supplementary table; Reed can make main scale be adjacent to measured.

Dial framework (Fig. 1-3) is connected as a single entity with table folder (Fig. 1-4), bearing bracket stand (Fig. 1-2).

The utility model further specifies middle in conjunction with the accompanying drawings embodiment:

Fig. 1 is the general structure sketch of this comparator.

Fig. 2 is for measuring the synoptic diagram of garden coning angle with this comparator.

Fig. 3 is for measuring the synoptic diagram of angle in two planes with this comparator.

Part sequence number in the accompanying drawing:

Fig. 1-1: basic chi.

Fig. 1-2: bearing bracket stand.

Fig. 1-3: dial framework.

Fig. 1-4: supplementary table folder.

Fig. 1-5: table folder.

Fig. 1-6: reed.

Fig. 1-7: main scale.

Before the use, use standard components such as try square, angle gauge block earlier with the scale zero check.Step is first turn dial framework, and the indicating value of vernier graduation is equated with the angle of the standard component of selecting.Screw the lock-screw of comparator back again, make dial framework, bearing bracket stand and the locking of basic chi.The main scale of comparator, basic chi are adjacent to simultaneously on two workplaces of standard component, the dial plate of rotation scale makes its pointer zero set again, and the step of scale zero check promptly comes to an end.If directly measure, after finishing above-mentioned scale school zero step, again lock-screw is unclamped, the rotation dial framework screws lock-screw after the angle value (the nominal angle value that just detail drawing is given) of vernier graduation value and desire measurement on the comparator is equated again, makes the basic chi of this comparator be adjacent to one side of measured angle, promote comparator gently, its main scale is adjacent to the another side of measured angle gradually, and at this moment, the indicating value on the scale is the difference of tested angle and part nominal angle.Thereby reach the purpose that directly takes measurement of an angle; If comparing property measurement, the standard component angle that only needs to select in the time will showing zero check equates with the nominal angle of tested part, behind the table zero check, the basic chi of this comparator, two limits of main scale while with measured angle are adjacent to, scale can demonstrate the actual angle of tested part and the difference of its nominal angle, thereby reaches the purpose of comparative measurement.

The difference that scale shows is the actual angle of measured angle in the difference of 100 millimeters long scopes to its nominal angle.If design drawing is with number percent formula angular dimension franchise, then do not need to carry out again any conversion; If design drawing is during with angle value method angular dimension franchise value, only need carries out simple trigonometric function operation and get final product.

Annex such as straight edge ruler, try square combines with comparator, and usage is identical with the corresponding annex of bevel protractor.

Claims

1, a kind of angle of angle being measured in the processing and manufacturing industry compares instrument.Mainly form by parts such as basic chi, dial framework, bearing bracket stand, table folder, supplementary table folder, reed, main scale, bearing, lock-screw, scale, straight edge ruler, try squares.Feature of the present utility model is:

A, bearing bracket stand (2) are connected as a single entity with dial framework (3), table folder (5), and miniature bearing are housed and can do ± the basic chi (1) of 91 ° of rotations.

B, on bearing, be equipped with and swing ± 1 ° main scale (7).

2, according to the described novel omnipotent angle comparator of claim 1, it is characterized in that being equipped with on the said dial framework (3) reed (6), the other end of reed (6) contacts with the medial surface of main scale (7).

3, according to the described novel omnipotent angle comparator of claim 1, it is characterized in that a supplementary table folder (4) that can load and unload as required is equipped with in the outside of said table folder (5), can adapt to the scale of the different strokes of clamping.

4, according to the described novel omnipotent angle comparator of claim 1, it is characterized in that: below basic chi (1), 90 ° of V-type gathering sills along its length direction are arranged.

5, it is characterized in that according to the described novel omnipotent angle comparator of claim 1: on the surface, outer garden of basic chi (1) and dial framework (3), be carved with respectively ± 90 ° master calibration and indicating value be 2 ' the vernier graduation line.

6, according to claim 1,3 described novel omnipotent angle comparators, it is characterized in that: the rotation center of said dial framework (3) is 100 millimeters to the distance at scale table bar center.