JPS6055219A - Length measuring device with digital display - Google Patents

Abstract

PURPOSE:To accumulate measured values in an external computer easily by fitting a means for storing a data identifying code and a measured value sequentially while making these values correspond to each other integrally with the body of a length measuring device so as to detach the means from the body and carry it. CONSTITUTION:The device is provided with an encoder 14 coupled with a measuring element 12 to detect the displacement of the measuring element 12, a counter 16 for counting an encoded output signal, a display device 20 for displaying the counted value as a measured value, a data switch 38 for accessing the measured value, a data identifying means 40 for putting a data identifying code including at least an article No. to the accessed measured value, and a storage means 30 for storing the data identifying code and the measured value sequentially while making these values correspond to each other and reading out the stored contents in accordance with a request from an external computer. The storage means 30 can be discharged from the body 10 of the length measuring device to be carried without interrupting the measured value displaying function of the display device 20.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a digital display length measuring device, and particularly includes an encoder connected to a measuring head to detect displacement thereof, a counter for counting output signals of the encoder, and a counter for counting an output signal of the encoder. The present invention relates to an improvement of a digital display length measuring device equipped with a digital display that displays counted values as measured values.

In general, in a length measuring instrument that measures the length of an object, such as a caliper or a mitarometer, the amount of movement of the probe relative to the main body, the amount of movement of the slider relative to the column, etc.
When measuring the amount of movement of something that moves relatively, for example, a so-called digital display sub-unit is used, in which an encoder consisting of a light source, a main scale, an index scale, and a photoelectric conversion element is incorporated into the main unit, and the measured value is displayed digitally. It has been known.

According to such a digital display sub-measurement device, measured values are displayed in an analog manner, and compared to a ts analog display sub-measurement device, the measured values are easier to read and no skill is required. However, in the past, the analog display scale was simply replaced with a digital display, and when the measured values were input into an external computer, etc. to calculate the standard deviation, etc., and were to be used for quality control, the digital display This method has a problem in that an operator must first read the measured values displayed on the device and record them in a ledger, etc., and then manually input the read data into an external computer.

In order to solve the above-mentioned problems, a digital display sub-controller has been proposed that can output measured values as digital signals to the outside, but this requires a direct connection between the digital display sub-controller and an external computer. Therefore, it had the following practical problems. That is, the measurement location is restricted by the installation conditions of the external meter**, and the object to be measured must be carried in and out from the processing site or the like to the measurement location, which is inefficient. Although it is possible to install a simple external computer at the processing site, this is not only difficult to implement due to temperature, vibration, noise, etc., but also has limited processing capacity. Furthermore, since the measurement work is usually performed intermittently and over a long period of time, not only the functions of the external computer are restricted for a long time, but also the preparation of the workers is required.

Furthermore, the calculation results are usually not real-time, but are generally used as indicators for later data analysis and optimization of subsequent processing steps, or tabulated or graphed, but they are not processed in real time. , the interrupt function of the external computer is occupied, making it impossible to fully utilize its original functions. Furthermore, in general, the measurement point changes for each object to be measured, and long-term measurements of the same object are rare, so it is necessary to operate an external computer each time a change is made, which requires a worker. Furthermore, the calculation results that can be requested are limited depending on the type of external computer connected to the sub-length device.

The present invention was made in order to solve the above-mentioned conventional problems, and it is possible to accumulate measured values without directly connecting a length measuring device to an external computer, and it is extremely easy to transfer measured values to an external computer. The purpose of the present invention is to provide a digital display length measuring device that can be used to input data and therefore has high practical value.

The present invention provides a digital display that includes an encoder connected to a measuring head and detecting its displacement, a counter that counts output signals of the encoder, and a digital display that displays the counted value of the counter as a measured value. In the sub-length instrument, a data switch for calling up the measured value, a data identification means for attaching a data identification code including at least an article number to the called out measurement value, and sequentially associating the data identification code and the measured value. A data storage means for storing data that can be read out in response to a request from an external computer is integrally provided in the main body of the sub-producer, and without interfering with the measured value display function of the digital display. The above object is achieved by making the data storage means detachable from the main body of the sub-length device and portable.

Further, in an embodiment of the present invention, the data storage means is integrated with the length measuring instrument main body via a cable having a length within a range that can be carried along with the measuring instrument main body, so that the measured values can be stored. The present invention can be easily applied to a digital display sub-function device that is already equipped with external output medical functions.

Furthermore, in another embodiment of the present invention, the data storage means can be incorporated into the main body of the sub-length device, so that it can be easily carried and measured.

The present invention was made with the focus on the fact that there is almost no need to input measured values in real time into an external computer that calculates data for quality control, etc., and the present invention is based on the fact that there is almost no need to input measured values in real time into an external computer that calculates data for quality control. A data storage means for sequentially storing data is integrally provided in the main body of the length measuring device in a state that it can be removed from the main body of the length measuring device and carried, so that measurements can be performed without directly connecting the length measuring device to an external computer, and After the measurement is completed, only the data storage means is connected to an external computer, and the stored contents are read out in response to a request from the external computer, so that the measured values can be inputted into the external computer very easily.

Embodiments of the digital display device according to the present invention will be described in detail below with reference to the drawings.

The first embodiment of the present invention, as shown in FIGS. 1 and 2,
A sensor connected to the probe 12 for detecting its displacement.
An encoder 14 including a detection section 14A and a waveform shaping circuit 14B including a direction discrimination circuit and a division circuit as necessary, and a counter 16 for reversibly counting the output signal of the encoder 14.
, a display driving device 18 that converts the counted value of the counter 16 into a signal suitable for digital display, and a digital display that is driven by the display driving device 18 and displays the counted value of the counter 16 as a measured value. 2o, and a control unit 22 for holding and clearing the counted value of the counter 16 and the displayed value of the digital display 2°, and for switching between inches and millimeters. 10, a type number setting switch 32 for setting the number of types of measurement articles, an article number setting switch 34 for specifying the number of one type of measurement article, and a number of measurement points for one measurement article. The number of measurement points setting switch 36, the data switch 38 for calling up the measured value of the digital display micrometer 10, and the called up measured value are set to item type F+, item number M+, and measurement location N.
The input/output unit 40 includes a data identification means for attaching a data identification code including +, and the storage contents can be read out in response to a request from an external computer for sequentially storing the data identification code and the measured value in correspondence. A battery-powered portable data storage device 30 consisting of a data storage section 42 and a data display section 44 that displays the measured value together with the data identification code has a length within a range that can be carried together with the digital display micrometer 10. The data storage device 30 can be detached from the micrometer body without interfering with the measurement value display function of the digital display 20. It is made portable.

The data storage device 30 has only a storage function and does not have a calculation function.

The data switch 38 is provided not only on the data storage device 30 but also on the digital display and the main body side of the micrometer 10, so that measurement values can be called up from any data switch, thereby improving operability. ' The accumulation of data in the storage unit 42 is performed, for example, in the third storage unit 42.
The number M1 of the first measurement articles F1 having the shape as shown in the figure is 1.
00 pieces, the number of measurement points N1 of each measurement article is 4 points A, B, C, and D, and the number M2 of the second measurement articles F2 having the shape as shown in FIG. 4 is 200 pieces, each measurement Number of measurement points of article N
When 2 is six points A, B, C, D, E, and F, the area J shown in FIG. 5 is used.

The action will be explained below.

First, in the measurement, as schematically shown in FIG. The number Mi and the number of measurement points N1 for one measurement article are set using the number of types setting switch 32, the number of articles setting switch 34, and the number of measurement points setting switch 36. Next, for example, put the data storage device 30 in a pocket. , take measurements while holding the digital display micrometer 10 in hand, and operate the data switch 38 every time the measurement of one measurement point is completed to associate the data identification code with the measured value and sequentially store it in the data storage device 30. The data is stored in the storage unit 42. At this time, the data identification code and the measured value are both displayed on the data display unit 44, so the data to be accumulated can be confirmed. This indicates that this is the 10th data about the 4th measurement point of article F1.

Note that by moving the measuring stylus 12 after the measured value is called up by the data switch 38, preparations for the next measuring operation are made.

After completing a series of measurements and completing data accumulation on the data storage device 30, as shown in FIG. Then, the data storage device 30 is brought to a location where an external computer 50 including the USB disk drive 50B is installed, for example, to a computer, and the data storage device 30 is connected to the external computer 50 via an adapter 52. In other words, the data stored in the data storage device 130 is read into the external computer 50 in a short time, and this external calculation 8! At I50, statistical data necessary for quality control etc. is calculated and output in an effective form such as a diagram, table, graph, etc.

In this embodiment, the data storage device 30 is connected to the digital display micrometer 1 via a cable 46 having a length that is within the range of being portable together with the digital display micrometer 10.
0 and a dedicated data display section 44 is provided in the data storage section @30.
The present invention can be easily applied.

Note that the connection method and configuration of the data storage device 130 are not limited to this, and for example, as in the second embodiment shown in FIG.
The data storage device 30 can be built directly into the main body of the digital display micrometer 10 without using a cable or the like. In this case, the digital display micrometer 10 can be easily carried and measured. In addition, in this second embodiment, the data display portion of the data storage device 30 is added by adding a function of displaying a data identification code to the digital display 20 provided on the main body of the digital display micrometer 10. You can also abbreviate it.

In the above embodiments, the present invention was applied to a digital display micrometer, but the scope of application of the present invention is not limited thereto. It is obvious that the present invention can be similarly applied to display sub-length devices.

As explained above, according to the present invention, measured values can be accumulated without directly connecting the length measuring device to an external computer, and measurement fields can be inputted to the external computer extremely easily. Therefore, there is no need to carry the object to be measured into a special environment such as a computer, and the sub-length instrument can be used near the object to be measured, for example near a processing machine. or,
The external computer is not tied to the sub-control device for a long time during measurement work, and the efficiency of using the external computer is improved. Furthermore, it has excellent effects such as being able to easily handle different types of external computers as necessary.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall configuration of a first embodiment of the digital display sub-length device according to the present invention, FIG. 2 is a block diagram showing the detailed configuration of the first embodiment, and FIG. Figure 4 shows
FIG. 5 is a front view showing an example of a measurement article and its measurement location, and FIG. A) and (B) are miniature diagrams showing the connection state between the digital display micrometer and the data storage device during measurement and data input, and the connection state between the data storage device and an external computer;
FIG. 7 is a perspective view showing the structure of a second embodiment of the digital display sub-length device according to the present invention. DESCRIPTION OF SYMBOLS 10... Digital display micrometer, 12... Measuring head, 14... 1 coater, 16... Counter, 20... Digital display, 30... Data storage device, 34... Article Number setting switch, 3B...Data switch, 46...Cable, 50...External calculator. Agent Takaya Ron (and 1 other person) Figure 1 Hi2 Figure 5

Claims (3)

[Claims] (1) Equipped with an encoder connected to the probe to detect its displacement, a counter to count the output signal of the encoder, and a digital display to display the counted value of the counter as a measured value. In the digital display length measuring device, a data switch for calling up the measured value, a data identification means for attaching a data identification code including at least an article number to the called out measurement value, and a data identification means for attaching the data identification code and the measured value to the called out measurement value. A data storage means capable of reading the stored contents in response to a request from the external needle 11 for sequentially storing data in correspondence with each other is integrally provided in the main body of the sub-length device, and the measured value is displayed on the digital display. A digital display sub-unit, characterized in that the data storage means can be removed from and removed from the main unit without interfering with the function. (2) The digital display sub-device according to claim 1, wherein the data storage means is integrated with the sub-visual device main body via a cable having a length within a range that is portable together with the sub-visual device main body. . (3) The digital display auxiliary device according to claim 1, wherein the data storage means can be incorporated into the main body of the auxiliary device.