JPH08929U - Angle gauge - Google Patents

Abstract

(57) [Abstract] [Purpose] This invention uses a dial gauge as the angle gauge to measure the distance between the reference surface of the angle gauge and the object to be measured at a plurality of measurement points, and the difference between the angles of the object to be measured is used. [Structure] Make a number of holes in the angle gauge, put a measuring instrument in the holes, and measure the distance from the reference plane. Also,
Attach two or more dial gauges to the holes and measure the distance between the reference surface and the object to be measured at two or more points at the same time.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a measuring instrument for accurately measuring an angle of a metal product.

[0002]

[Prior art]

 When measuring the squareness of a metal product using a conventional right-angled ruler, the accuracy is determined visually by looking at the gap between the right-angled ruler and the metal product. It was great. When it could not be visually observed, it could not be measured. Also, angles such as 30 degrees, 45 degrees, and 60 degrees that are well separated are measured with a protractor, etc., and there were large errors and variations in the person reading the scale. In addition, an expensive three-dimensional measuring device has been used to increase the accuracy of angle measurement.

[0003]

[Problems to be Solved by the Invention]

 Therefore, when making a 6-sided right angle with a milling machine, it was necessary to hit the product with a conventional right-angle ruler and visually check the gap to measure the right-angle accuracy. For angles other than 90 degrees, the reading error of the scale of the protractor was large, and precision products had to be measured with expensive three-dimensional measuring instruments. During the processing of the product, the angle of the position that could not be visually observed could not be measured. The present invention was devised in response to the strong demands of processors and measurers who want a measuring instrument that can measure the product's angle accurately, easily, and in a position that cannot be visually observed, regardless of the feeling.

[0004]

[Means for solving the problem]

 Now, the structure thereof will be described with an example of a right-angle ruler. (A) The right angle of the right-angle ruler 1 is accurately processed and finished. (B) A large number of holes are formed at regular intervals at right angles to the reference plane B of the right angle ruler 1. (C) Insert the dial gauge 2 into the hole and take out the measuring terminal 3 of the dial gauge from one reference surface B of the right angle ruler. (D) Set the measuring terminal 3 of the dial gauge on the right-angled ruler 1 so that its movable range is inside and outside the reference surface 4 of the ruler, attach it, and fix it with the tightening screw 8. (E) Attach the ring-shaped stopper 7 of the dial gauge to the side opposite to the reference surface and tighten it. (F) Attach two or more dial gauges to the right angle ruler as above. (G) As shown in FIG. 2, the set plate 6 is applied to the reference surface, and the reference surface B and the measurement terminal 3 of the dial gauge are flush with each other so that the position becomes 0 of the dial gauge reference scale. set. It is configured as described above. If the angle is other than 90 degrees, the square portion of the squarer is precisely finished to the required angle, 30 degrees, 45 degrees, 60 degrees, etc.

[0005]

[Action]

 Next, the operation of the present invention will be described. (1) As shown in FIG. 3, a right angle ruler and an object to be measured are placed on a surface plate. (2) Next, place the object to be measured on the reference surface B of the angle gauge and read the scale on the dial gauge. The measurement object may be contacted with the reference surface of the angle gauge without contacting the measurement object. (3) Since the reference scale of the dial gauge is the reference surface of a right-angled ruler that has been accurately finished, the scale of the dial gauge read is the distance between the reference surface of the right-angled ruler and the measurement object. (4) If the angle is calculated from the difference between the scales of the attached dial gauges and the distance of the holes whose distances are measured at regular intervals, the right angle error of the measured object can be found. Therefore, the angle difference of the measured object can be measured by the difference of the distance of 0.01 mm unit, and the error of 0.01 mm at the distance of 50 mm results in the error of 0.01 degree. Accuracy is dramatically improved. Accurate measurement and processing is possible even if the eyes are near-sighted and far-sighted, and even if the dial gauge is readable, it is not visible. When machining a milling machine, place a right-angle ruler on the vise plane to see the squareness of the workpiece when tightened. Therefore, the work piece can be set accurately at the beginning of processing. Further, since the protractor is used for measuring other angles such as 30 degrees, 45 degrees, and 60 degrees, the accuracy of 0.01 degree is not obtained, and the measurement accuracy of the angle gauge of the present invention is dramatically improved. .

[0006]

【Example】

 The hole formed in the angle gauge may be a round hole, a long hole, or a square hole. In addition, the back surface of the reference surface and the reference surface may be accurately laid out parallel to the measuring instrument, and a depth micrometer or depth dial gauge may be inserted into the hole of the angle gauge from the back surface for measurement. Also, when the measurement terminal and the reference surface are aligned, the back surface of the reference surface and the stopper 7 are brought into contact with each other, and the stopper is set and fixed on the dial gauge, and the angle gauge is replaced with another hole. You can easily set the dial gauge standard when you do so. If the distance between the reference surface of the angle gauge and the measurement terminals of each dial gauge is fixed, and the dial gauge is aligned with the reference scale, the angle error of the measured object can be measured. As shown, if the reference plate and the measurement terminal of the dial gauge are aligned on the set plate 6, the reference surface scale of the dial gauge can be easily set. The reference scale of the dial gauge does not move because it is within the movable range of the measurement terminal of. Also, by fixing the dial gauge on the reference surface A, it is possible to check whether the angle gauge and the surface plate are in close contact with each other. As shown in FIG. 4, even if the back surface of the angle gauge is used, the angle can be measured with the same configuration. As shown in FIG. 5, the angle can be similarly accurately and easily measured at angles other than the right angle. As shown in FIG. 6, if one of the holes is removed to form a groove, the dial gauge can be easily moved to another position. If the dial gauge is a lever-type measuring terminal, the measuring terminal can be used by inserting it into the groove of the angle gauge.

[0007]

[Effect of device]

 Therefore, the angle of the object to be measured can be measured simply by contacting the reference surface of the angle gauge with the object to be measured, and it is easy, simple, and accurate. The angle is calculated by the difference between the distance between each angle gauge and the object to be measured and the pitch of the holes in the angle gauge. If the difference between the angle gauge and the object is 0.01 mm, it is usually Products are sufficient. When the difference is 100 mm and 0.01 mm, the difference is 0.005 degrees, which is much higher than the accuracy of the protractor. In addition, the measurement method is simple, convenient, and easy to measure anywhere even if the measurement surface is brought close to the reference surface of the angle gauge and the measurement terminal is in contact with the measurement object. Therefore, if you can read the scale of the dial gauge, you can measure the angle of the measurement object by touching the measurement object with the angle gauge even if you cannot see the contact surface.

[Brief description of drawings]

1 is a perspective view of the present invention

FIG. 2 is a diagram when setting the reference scale of the dial gauge of the present invention.

FIG. 3 is a diagram showing a measuring state using the angle gauge of the present invention.

FIG. 4 is a diagram of another measurement state using the angle gauge of the present invention.

FIG. 5 is a diagram showing a measurement state using another angle gauge of the present invention.

FIG. 6 is a grooved angle gauge of the present invention.

[Explanation of symbols]

 1 is an angle gauge 2 is a dial gauge 3 is a measuring terminal 4 is a reference plane B 5 is a reference plane A 6 is a set plate 7 is a stopper 8 is a tightening screw 9 is a measured object 10 is a surface plate 11 is a stopper screw 12 is another angle Angle gauge

Claims (5)

[Scope of utility model registration request] 1. An angle gauge in which a large number of holes are formed in a reference surface of an angle gauge whose angle is accurately measured. 2. An angle gauge in which a large number of grooves are formed on a reference surface of the angle gauge whose angle is accurately measured. 3. An angle gauge in which two or more dial gauges are inserted into the hole of claim 1 or the groove of claim 2 and the measurement terminals are attached from the reference plane. 4. An angle gauge in the range of claim 3, wherein a stopper 7 is attached to the mounting portion of the dial gauge. 5. An angle gauge having two or more dial gauges, each measuring terminal attached so that it can move in and out of a reference surface of the angle cage.