JPH0719854A - Automatic operating method for measuring instrument - Google Patents

Abstract

PURPOSE:To select a part program automatically by omitting worker's input- operating step, and eliminating input errors. CONSTITUTION:A data processing part 32 judges the kind of a work based on the measured data at the specified position of the work. Then, an automatic part-program selecting part 34 selects the part program corresponding to the judged work among many kinds of port programs stored in a database part 40 beforehand. Thus, the part program corresponding to the measured work is automatically selected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic operation method for a measuring machine, and more particularly, when a three-dimensional coordinate measuring machine equipped with an automatic operation program is used to automatically measure the shape of a work, the part program is adapted to the work. The present invention relates to an automatic operation method of a measuring instrument to be selected.

[0002]

2. Description of the Related Art As shown in FIG.
The dimensional coordinate measuring machine body 10 is controlled based on a signal from the automatic measurement control unit 14. The automatic measurement control unit 14 controls the three-dimensional coordinate measuring machine body 10 based on the signal of the automatic driving program output from the data processing unit 16. Then, the data processing unit 16 can select a part program (automatic operation program created for each work) of various types of works stored in advance in the database unit 18.

A case where automatic measurement is performed by this three-dimensional coordinate measuring machine will be described with reference to the flow chart of FIG. First, the database 16 stores in advance the respective part programs to be applied to various types of works. In this state, when the file number of the work to be measured is input to the data processing unit 16 via the key input unit 20 (step 100), the data processing unit 16 outputs from the database unit 18 based on the signal from the key input unit 20. A part program corresponding to the work is selected (step 102). Then, the data processing unit 16 outputs the part program selected from the database unit 18 to the automatic measurement control unit 14,
The dimensional coordinate measuring machine body 10 automatically measures each part of the work based on the control signal from the automatic measurement control unit 14 (step 104). Thereby, the three-dimensional coordinate measuring machine main body 10 can automatically measure many kinds of works.

[0004]

However, in the case of automatically measuring a work by the conventional method, it is necessary for the operator to key in the file number of the work to be measured through the key input section. Therefore, if there are many types of work,
Since there are many types of key input corresponding to each work, the operator may make an input error. As a result, an appropriate part program cannot be selected, and automatic measurement cannot be easily performed.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an automatic operation method of a measuring machine capable of properly selecting a part program of a large number of works without key input. To do.

[0006]

In order to achieve the above-mentioned object, the present invention provides an automatic operation method of a measuring machine for automatically operating the measuring machine for measuring the shape of a work, etc. The step of obtaining the measurement data of the position, the step of determining the type of the work based on the measurement data, and the part program corresponding to various types of workpieces stored in advance based on the result of the work type determination. From the step of selecting a part program corresponding to the determined work, and the step of automatically operating the measuring machine based on the selected part program.

[0007]

According to the present invention, the type of the work is determined based on the measurement data of the predetermined position of the work obtained by the measuring machine.
Next, based on the judgment result, a part program corresponding to the judged work is selected from the part programs corresponding to various works stored in advance, and the work is automatically measured by the selected part program. To do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic operation method for a measuring machine according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a block diagram of a three-dimensional coordinate measuring machine configured to be operable by an automatic operation program. In the figure, the part program automatic selection means 30 comprises a data processing section 32 and a part program automatic selection section 34. The data processing unit 32 inputs the signal of the part program to the automatic measurement control unit 36 described later. In addition, the data processing unit 32 includes the three-dimensional coordinate measuring machine main body 38 to the works 37A, 37B, 37.
Measurement data at a predetermined position of C (see FIG. 2) is input.

Here, measurement data at a predetermined position of the work
Will be described. As shown in Fig. 2, the measurement target
Predetermined for work 37A, work 37B, work 37C, etc.
Characteristic point T for each type of work at the position_A, T_B, T_CIs set
Has been done. Feature point T_A, T _B, T_CAs of the work
The hole diameter is different for each type and the groove width is different for each type of work.
Cutting grooves, etc. may be considered. And the 3D coordinate measuring machine body
38 points (not shown in the figure)_A, T_B, T_CTo
Measure and measure each measured value with work 37A, 37B, 37C
The measurement data is at a predetermined position of.

The data processing section 32 determines the type of work based on the measurement data input from the main body 38 of the three-dimensional coordinate measuring machine. Further, the data processing unit 32 outputs the determination result to the part program automatic selection unit 34. Based on the input work type determination result, the part program automatic selection unit 34 selects a part program corresponding to the determined work from the part programs of the various types of work that are input in advance in the database unit 40.

The above-mentioned automatic measurement control section 36 automatically controls the three-dimensional coordinate measuring machine main body 38 based on the signal of the part program output from the data processing section 32. An automatic operation method of the measuring machine according to the present invention when a part program is selected by using the part program automatic selection means 30 configured as described above will be described with reference to the flowchart of FIG.

First, the case of automatically measuring the work 37A will be described. A probe (not shown) provided on the main body 38 of the three-dimensional coordinate measuring machine measures a predetermined position characteristic point T _A of the work 37A (step 110). Thereby, the measurement data of the predetermined position of the work 37A is obtained. This measurement data is input from the three-dimensional coordinate measuring machine main body 38 to the data processing unit 32. Then, the data processing unit 32 determines the type of the work measured based on the measurement data and inputs the determination result to the part program automatic selection unit 34 (step 112). The part program automatic selection unit 34 selects a part program corresponding to the measured work 37A based on the input work type determination result (step 114).

After the selection of the part program is completed, the part program automatic selection section 34 inputs the selected part program to the data processing section 32. The data processing unit 32 inputs the signal of the part program to the automatic measurement control unit 36 based on the input part program. The automatic measurement control unit 36 automatically controls the three-dimensional coordinate measuring machine main body 38 based on the signal of the input part program. Thereby, the main body 38 of the three-dimensional coordinate measuring machine automatically measures the shape of the work 37A (step 116).

Next, when automatically measuring the work 37B,
The characteristic point T _B at a predetermined position of the work 37B is measured by the probe of the main body 38 of the three-dimensional coordinate measuring machine, and this measured value is used as the work
7B measurement data. Then, the part program corresponding to the work 37B is selected based on the measurement data, and the shape of the work 37B is automatically measured based on the part program corresponding to the selected work 37B.
In the above embodiment, the case where the method for selecting a part program according to the present invention is applied to a three-dimensional coordinate measuring machine has been described, but the present invention is not limited to this and can be applied to other measuring machines.

[0015]

As described above, according to the automatic operating method of the measuring machine according to the present invention, the part program corresponding to the measured work is automatically selected based on the measurement data of the predetermined position of the work. can do. Therefore, since the operator's input operation process can be eliminated and the operator's input error can be eliminated, automatic measurement can be easily performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a state in which a part program automatic selecting means for executing an automatic operation method of a measuring machine according to the present invention is used in a three-dimensional coordinate measuring machine.

FIG. 2 is an explanatory diagram illustrating feature points set at predetermined positions on a work.

FIG. 3 is a flowchart illustrating an automatic operation method for a measuring machine according to the present invention.

FIG. 4 is a block diagram of a conventional three-dimensional coordinate measuring machine.

FIG. 5 is a flowchart illustrating an automatic operation method of a conventional three-dimensional coordinate measuring machine.

[Explanation of symbols]

 30 ... Part program automatic selection means 32 ... Data processing section 34 ... Part program automatic selection section 36 ... Automatic measurement control section 38 ... Three-dimensional coordinate measuring machine main body 40 ... Database section

Claims (1)

[Claims] 1. An automatic operation method of a measuring machine for automatically operating a measuring machine for measuring a shape of a work, the method comprising: obtaining measurement data of a predetermined position of the work with the measuring machine; A step of determining the type of work, based on the result of the work type determination, a step of selecting a part program corresponding to the determined work from among part programs corresponding to various types of workpieces stored in advance, And a step of automatically operating the measuring machine based on the selected part program, the automatic operating method of the measuring machine.