JPS63200009A - Plural parts measuring instrument - Google Patents

Abstract

PURPOSE:To improve the operational efficiency of measurement and enable a structure to be simplified and a size to be reduced even when there are many measuring parts by mounting a work on a mount table capable of rotating and rotational position indexing. CONSTITUTION:A work W with a plurality of measuring positions is mounted on a mount table 1 rotatably provided on a base 2 so that rotational positions can be indexed by rotational position indexing holes 9a-9e and a positioning pin 11. More than nine measuring parts, for example, set in advance are measured by the selection of five rotational positions. Measuring units 12A-12D are used for measuring the measuring positions of the work W. For this end, a measuring unit positioning area 3 is provided on one side of the base 2 and stock areas 4 and 5 are provided adjacently with the area 3. Units 12A-12D are arranged so as to be able to enter and get out of the area 3, which is provided with positioning means by positioning pins 24a-24c or the like. Thus, a number of positions are measured with high efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a multi-part measuring device capable of efficiently measuring a workpiece having a plurality of measuring parts.

(Prior Art) Generally, in machining factories for mass-producing products, dimensions of predetermined parts of processed workpieces are measured by sampling detection. By the way, when the above-mentioned workpiece has a plurality of measurement parts, for example,
As disclosed in Japanese Patent Application No. 27404, it is known to perform measurements by fixing a plurality of different measuring instruments used for measuring the plurality of measurement sites above around a surface plate on which a workpiece is fixed.

However, such multi-part measuring devices have poor work efficiency because it is troublesome to attach and detach the workpiece from the surface plate, and it is difficult to install many measuring instruments in a small space, so there are many It is often impossible to wick a workpiece that has a measurement area, and furthermore, the entire device is
x There was a problem of increasing the size of the clutter.

(Purpose of the Invention) Therefore, the present invention provides a method for measuring multiple parts that can be performed with extremely good workability even when a workpiece has a large number of measuring parts, and that also enables the overall configuration to be simplified and downsized. The purpose is to provide a measuring device.

(Structure of the Invention) In the multi-part measuring device according to the present invention, a workpiece having a plurality of measurement parts is mounted on an i! l! It is placed on the stand. The plurality of measurement instruments used to measure each measurement part of the workpiece are each made into a unit, and a measurement unit positioning area is provided on one side of the above-mentioned mounting table, and furthermore, these measurement units are placed in a pool. A stock area for the measuring unit is provided adjacent to the measuring unit positioning area. In the stock area, a plurality of measurement units are arranged so as to be able to enter and exit the measurement unit positioning area, and in the measurement unit positioning area,
The present invention is characterized in that positioning means for positioning the measurement unit is provided.

(Effects of the Invention) According to the present invention, since the workpiece is placed on a mounting table that is rotatable and whose rotational position can be indexed, all measurement parts of the workpiece can be quickly directed toward the measurement unit positioning area. The measurement unit for measuring the selected measurement area can be moved from the stock area to the measurement unit positioning area, and the measurement unit can be positioned there and measured. Even in cases where this method is used, there is an advantage that the workability of measurement work can be dramatically improved, and that the entire apparatus can be simplified and miniaturized.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a plan view of a multi-part measuring device according to the present invention, in which 1 is a workpiece rotatably provided on a base 2! 3! The mounting table 3 is a measuring unit positioning area provided on one side of the workpiece mounting table l, and the reference numeral 4.5 is a stock area provided in connection with the left and right sides of the measuring unit positioning area 3. work! 5! A collet chuck 6 is coaxially provided at the center of the z-table l, and clamps the workpiece W.

As shown in the cross-sectional view of FIG. 3, this collet chuck 6 expands the tension piece 8 and locks the inner diameter portion of the workpiece W by vertically moving a clamp rod 7 having a tapered surface. It has a known structure. The workpiece W that is rotated together with the workpiece mounting table 1 is configured to be measured at nine or more preset measurement points at five rotational positions, and is therefore in contact with the bottom surface of the workpiece mounting table L. Workpiece mounting table 1 is placed on base 2.
Five rotation position indexing holes 9a to 9e are arranged along the outer periphery of
It penetrates the workpiece ria 1 unit 1 vertically, and the spring ■
A positioning pin 11 urged downward by a spring force of 0 is attached so as to be slidable in the vertical direction. If you grasp this positioning pin 11 and pull it upward against the biasing force of the spring 10, the tip of this positioning pin 11 will be retracted from the bottom surface of the workpiece mounting table l, so that the workpiece mounting table 1 can be rotated. However, if you align this positioning pin 11 with one of the five rotational position indexing holes 9a to 9e and release your hand, the positioning pin 11 will move to one of the rotational position indexing holes 9a to 9e. By engaging with one of the parts, the workpiece mounting table 1 is fixed at a desired position. Note that FIG. 1 shows the position of the workpiece W when the positioning pin 11 is engaged with the rotational position indexing hole 9b, and FIG. 2 shows the position of the workpiece W when the positioning pin 11 is engaged with the rotational position indexing hole 9d. The position of the workpiece W in the state shown in FIG.

On the other hand, in the stock area 4.5 provided in connection with the left and right sides of the measurement unit positioning area 3, there are, for example, six free-standing measurement units 12 and 8 each used for measuring a large number of measurement parts of the workpiece W. ~12F are filed. These measurement units 12A to 12F are mounted on a relatively heavy rectangular base 13 having a flat bottom surface, and each having an arm 14 extending forward and having a shape different from each other corresponding to the measurement part of the workpiece W. It is equipped with
At the tips of these arms 14, one or more dial gauges 1 are installed at positions and angles corresponding to each measurement site.
5 is installed. Each measurement unit 12A-12F
At the front end of the base 13, there is a measurement unit positioning area 3.
An inclined surface 13a is formed so as to form a dovetail surface with respect to a groove 20 which is provided in the groove 20 and will be described later. In addition, one or more positioning notches 1 are provided at the rear end of the base 13.
6 is provided. A large number of slide balls 17 for sliding measurement units 12A to 12F are planted on the upper surface of the stock area 4.5.
Movement of the units 12A to 12F on the stock area 4.5 and access to and from the measurement unit positioning area 3 is facilitated. In addition, in FIG. 1, only three of the six measurement units 12A to 12F are illustrated, and the others are omitted. FIG. 1 shows that the used measurement unit 12A is removed from the measurement unit positioning area 3 to the stock area 5, the measurement unit 12B is positioned in the measurement unit positioning area 3, and the measurement unit 1
2D shows a state where it is on standby in the stock area 4. Further, FIGS. 2 and 3 show a state in which the measurement unit 12D is positioned in the measurement unit positioning area 3.

Measurement unit positioning area 3 is for each measurement unit positioning area 12
It is constituted by a member 21 that forms a groove 20 that engages with the base 13 of A-12F and connects the left and right stock areas 4.5, and the flat bottom surface 20a of this groove 20 connects the stock area 4.5. It is almost on the same plane as the -l two planes of. An edge 22 of the groove 20 on the side of the workpiece mounting table l forms a dovetail surface, and an edge 22 of the groove 20 on the side opposite to the workpiece mounting table 1 forms a dovetail surface.
3, the three wooden positioning pins 24a to 24c are attached to this 8(
It is attached perpendicularly and horizontally to the section 23.

These positioning pins 24a to 24C also have the same configuration as the positioning pin 11 described above, and the spring 25
(See Figure 3) is biased toward the workpiece mounting table 1 side, and at this point one of the fixing pins 24a to 24C
The two tapered tips 26 are located in the measurement unit positioning area 3.
By engaging with the notch 16 of the base 13 of the measuring units 12Δ to 12F carried in, the measuring unit 12A
-12F is positioned while being pressed against the workpiece mounting table 1 side. And these positioning pins 24
If you pull a to 24C toward you, their tips 26 will align with the groove 20.
12A-12
It is easy to carry F into the measuring unit positioning area 3 and to take it out from this area 3.

The configuration of one embodiment of the multiple site measuring device according to the present invention has been described above, and next, one side of its operation will be explained.

First, it is assumed that all six measurement units 12A to 12F are pooled in the stock area 4.5 before the start of measurement. Then, the workpiece R mounting table 1 is rotated to engage the positioning pin 11 with the rotational position indexing hole 9a, and the arm A protruding from the workpiece W is moved to the measurement unit positioning area 3.
Set the workpiece W so that it faces to the side. Next, the measurement unit 12A is carried into the measurement unit positioning area 3 from the stock area 4 or 5, and the measurement unit 12
The distal end portion 26 of the central positioning pin 24b is engaged with the positioning notch I6 formed on the base 13 of A to position the measurement unit 12A at the measurement position. Then, by fitting a cylindrical measuring jig (not shown) into the hole 31 formed in the arm A, and applying the dial gauge attached to the measuring unit +2A to the circumferential surface of the jig. , the position of the hole 31 can be measured. When this measurement is completed, the measurement unit 12A is carried out to the stock area 5.

Next, the workpiece mounting table l is rotated counterclockwise to engage the positioning pin 11 with the rotational position indexing hole 9b, and the first
The measurement unit 12B is brought into the measurement unit positioning area 3 from the stock area 4 or 5 in the state shown in the figure. Two positioning notches 16 are formed on the base 13 of this measuring unit 12B, and it is possible to position this measuring unit 12B at two locations relative to the same central positioning pin 24b. This measurement unit 1
2B"rThe positions of the two holes 32.33 formed on the surface B of the workpiece W are measured.
The positions of the holes 32 and 33 can be measured by fitting the measuring jig 34 into the measuring unit 3 and applying the dial gauge 15 attached to the measuring unit 12B to the circumferential surface of the jig 34. Furthermore, when the workpiece W is in the position shown in FIG. All you have to do is bring it in and apply the dial gauge attached to the measuring unit 12F to this surface B.

Next, the workpiece mounting table l is further rotated counterclockwise to engage the positioning bin 11 with the rotational position indexing hole 9d to the state shown in FIG. It is carried into the positioning area 3, and the left and right positioning bins 24a are engaged with the positioning notches 16 of the base 13. The measuring unit 12D measures holes 35 and 36 of the same diameter formed in portions D1 and D2 of the workpiece W, respectively. And first part D
The measuring jig 37 is fitted into the hole 34 of the measuring unit 1.
The position of the hole 35 is measured by applying the dial gauge 15 attached to the tip of the 2D arm 14 to the circumferential surface of the jig 37. Next, the measurement unit 12D is moved to a position where it engages with the positioning pin 24c, as shown by the chain line in FIG. 2, and the jig 37 is fitted into the cage 36 to measure the position of the hole 36.

When this measurement is completed, the measurement unit 12D is carried out to the stock area 4 or 5, the workpiece mounting table l is rotated to change the posture of the workpiece W, and the next measurement unit is carried into the measurement unit positioning area 3. The measurement portion on the side of the workpiece W facing the area 3 may be measured using the same method. In this way, it is possible to efficiently measure a workpiece W having a large number of measurement parts.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a multi-site measuring device according to the present invention, and FIG.
The figure is a plan view of the main part showing the measurement state of the workpiece mounting table at a rotational position different from that in Figure 1, and Figure 3 is m-m in Figure 2.
FIG. 1-Workpiece mounting table 2-Base 3-Measurement unit positioning area 4.5-Stock area 6-Cholera doo chuck 7-Crunblonde 9a-9e-Rotation position indexing hole 11-Positioning bin 12A-12 I)-Measurement Unit 13 - Measuring unit base 14 - Measuring unit arm 15 - Dial gauge 16 - Positioning notch 17 - Slight ball 20 - Groove 22.23 - Groove edge 24 a to 24 c - Positioning pin 34.37 -Measurement jig

Claims (1)

[Claims] A mounting table on which a workpiece having a plurality of measurement parts can be placed and rotatable and rotational position indexable, a measurement unit positioning area arranged on one side of the mounting table, and a stock area connected to the measurement unit positioning area; in the stock area, a plurality of measurement units used for measuring each measurement part of the workpiece are arranged so as to be movable into and out of the measurement unit positioning area; A multi-site measuring device characterized in that a positioning area is provided with positioning means for positioning the measurement unit at a measurement position.