JPS6111607A - Automatic distance measuring instrument - Google Patents

Abstract

PURPOSE:To enable the measurement of the distance among three points in a complicated shaped cubic body by having the arithmetic means operating the distance of No.1 point, No.2 point and No.3 point and the display means displaying the output of the arithmetic means thereof. CONSTITUTION:An automatic distance measuring instrument has an arithmetic means calculating the distance of No.1 point, No.2 point and No.3 point and the dispaly means displaying the output of the arithmetic means thereof. The measured value of each detecting instrument 4, 7 and 9, detected at the time when the tip of a sensor 10 is brought into contact with No.1 measuring point, is stored into the memory device. Next the tip of the sensor 10 is brought into contact with the No.2 measuring point. The position of No.2 measuring point is measured by the detecting device and the distance from the memory means to No.2 point is operated. With this device, the distance among three points in the cubic body of complicated shape can be measured.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for measuring the distance between two points on a three-dimensional object with a complex shape.

Conventionally, one-dimensional length measuring devices such as calipers and scales have been used to measure the distance between two points on a three-dimensional object.

However, when a three-dimensional object becomes large or has a complicated shape, much labor is required, or it becomes impossible to measure the length using these methods.

Several automatic distance measuring devices have also been proposed. However, when using this measuring device, the distance the tentacle has moved in the X, Y, and Z directions between measurement points is shown. That is, it merely indicates the distance obtained by dividing the distance between the measurement points onto the X, Y, and Z axes, and does not purely indicate the distance between the measurement points.

Furthermore, for three-dimensional objects with a plurality of shapes, there may be locations where the length cannot be measured.

The purpose of the present invention is to be able to measure the distance between two points in a three-dimensional object with a complex shape, and to display the distance between two points as a straight-line distance instead of a resolved value in the x, y, and z directions. . To provide an automatic distance measuring device.

The automatic distance measuring device according to the present invention includes a point detecting means, for example, a tentacle, which is in contact with or close to a first point, a second point, and a third point at which the distance between the two points is to be measured, and is capable of detecting the point position. A moving means for moving the tentacle in at least three dimensions, a plurality of detecting means for detecting the state of the moving means, and a storage means for directly storing the outputs of the plurality of detecting means at a first point of the tentacle. Then, the distances between the first point, the second point, and the third point are determined from the outputs of the plurality of detection means at the second and third points of the tentacle and the information about the first point stored in the storage means. This device is characterized by comprising a calculating means for calculating, and a display means for displaying the output of the calculating means.

EMBODIMENT OF THE INVENTION Hereinafter, the apparatus of this invention will be explained in detail based on the drawing of an Example. In FIG. 1, reference numeral 1 indicates a surface plate of this device placed horizontally. A base 2 is mounted on the surface plate 1 so as to be movable in the X direction. Further, the surface plate 1 is attached to the base 2 in the traveling direction (-
A guide groove 3 is provided along the guide groove 6, and the base 2
A roller provided at the base 2 is fitted therein, and the detection device 4 measures the position of the base 2 based on the rotation of the roller. The movement of the base 2 is achieved by mounting a motor for driving the rollers on the base 2, and providing means for operating or automatically stopping the motor.
It may be moved by human hands.

Also, the base? A vertical support 5 is provided on the support 5, and a bracket 6 is attached to the support 5 so as to be slidable up and down. Further, the plug/toro can be freely raised and lowered in the vertical direction by the seat-two. Further, the bracket 6 is provided with a roller that comes into contact with the surface of the support column 5, and the detection device 7 measures the position of the bracket 6 by the rotation of the roller.

Further, a horizontal shaft 8 extending perpendicularly to the moving direction of the base 2 is slidably attached to the bracket 6, and another roller provided on the bracket 6 is in contact with the horizontal shaft 8. The detection device 9 measures the position of the horizontal axis 8 by the rotation of the axis. A sensor 1o is fixed to the tip of the horizontal shaft 8.

Since this device is configured as described above, the tip of the sensor 1o can be brought into contact with a desired point of a three-dimensional object with a complicated shape by human power or the like.

Next, a distance measurement method using this device will be described. First, the tip of the sensor 1o is brought into contact with the first measurement point. Then, the coordinate position of the first measurement point is determined by each of the detection devices 4, 7, and 9. At this time, the coordinate origin is set appropriately. Of course, the respective measurement values of the detection devices 4, 7.9 are shown with reference to the coordinate origin.

The measurement values of each of the detection devices 4, 7, and 9 when the tip of the sensor 10 contacts the first measurement point are stored in the storage device 11. Alternatively, the measured values from the detection device may not be stored as they are in the storage device, but may be computed through a computing means and the computed values may be stored.

Next, the tip of the sensor 10 is brought into contact with the second measurement point. The position of the second measurement point is measured by the detection device, and the calculation means calculates the value of the second point based on the measurement value of each detection device, and reads the information at the 31 points from the storage device. , calculate the distance from the first point to the second point. The output of the calculation means is displayed on the display means.

As described above, the apparatus of the present invention has great practical value because it can measure the distance between three points in a cube with a complex shape, and the measured value can be displayed as a straight-line distance.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the device of the invention. 1...Surface plate 2...Base 5...Strut 6-mounted bracket 8...Horizontal shaft
4.7.9...Detection device 10...Sensor

Claims (1)

[Claims] The distance between the object to be measured is measured between the first point and the second and third points.
a point detection means that is in contact with or in close proximity to a point and capable of detecting a point position; a moving means that moves the point position detecting means in at least three dimensions; and a plurality of detecting means that detects the state of the moving means; storage means for directly storing the outputs of the plurality of detection means at the first point of the point position detection means, and the outputs of the plurality of detection means at the second and third points of the point position detection means and the storage means; It is characterized by comprising a calculation means for calculating the distance between the first point and the second and third points from the stored information at the first point, and a display means for displaying the output of the calculation means. automatic distance measuring device.