JP2007064886A - Material testing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a material testing machine capable of making a screen display user-friendly which is used for setting a test condition and the like. <P>SOLUTION: A control unit 2 of the material testing machine is configured so as to able to connect to an external general-purpose storage device such as a USB memory 22 or the like. When the storage device is connected, user information stored therein is read out automatically, and the content of a screen for setting the test condition which should be displayed on a display device 21, is changed automatically in accordance with the read out user information, for example, the level of skill or the like, thereby enabling a condition setting operation to be carried out which uses setting screens perfect for respective users ranging beginners to skilled persons. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a material testing machine for investigating the mechanical properties and the like of various materials.

  In a material testing machine, in general, the mechanical properties of a specimen are investigated by applying a load such as tension or compression to the specimen by a load mechanism and detecting the momentary distortion of the specimen due to the load. .

  Such a material testing machine generally includes a testing machine main body including a load mechanism and a control device including a CPU, and a display device such as a touch panel type is connected to the control device. Are displayed for setting various test conditions (see, for example, Patent Document 1).

Also, test data such as the test force loaded on the specimen during the test and the elongation of the specimen are taken in by the control device and displayed on the display as a load-elongation curve or printed by a printer or plotter. It is configured to. In general, a control device is provided with only a working memory as a device for storing captured data, and is not provided with a hard disk or a large-capacity storage device for semi-permanent data storage. In order to save data permanently, it is common to connect a personal computer and save it in a storage device such as a hard disk attached to the personal computer (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 10-307089 JP 2003-28771 A

  By the way, in the conventional material testing machine, the screen displayed for setting the test conditions is constant as described above, and it is set by using the same display screen from beginner to expert. This display is basically to be able to set conditions for all the functions that the material testing machine has, for example, to display a wide range of setting items so that testing by various controls can be performed, In that case, there is a problem that it is difficult for beginners to know where and how to set the test, making it extremely difficult to use.

  In addition, it is common to connect a personal computer to a material testing machine, but most of the personal computers connected to such a material testing machine are only used for storing and printing test data. However, although its price has been decreasing in recent years, there is a problem in terms of cost performance, and there is a problem that the cost for installing the material testing machine is increased accordingly. In addition, the user needs to learn the operation method of the material testing machine and the operation method of the personal computer, and there are cases where the operation procedure increases and the time required for the test becomes longer. In some cases, you don't want to connect.

  The present invention has been made in view of such circumstances, and a main problem thereof is to make it easier to use display of a screen for setting conditions in a material testing machine.

  Another object of the present invention is to provide a material testing machine capable of semi-permanently storing test data and the like without connecting a personal computer.

  In order to solve the above main problems, the material testing machine of the present invention is a material testing machine for investigating the mechanical properties of the specimen by applying a load to the specimen, and is externally attached to a control device for controlling the testing machine body. The general-purpose storage device is configured to be connectable, and when the storage device is connected, the control device automatically reads the user information stored in the storage device, and according to the read information. It is characterized by automatically changing the content of a screen for setting test conditions to be displayed on a display unit connected to the control device (claim 1).

  Here, in the present invention, the user information stored in the storage device includes the skill level of the user, and the control device changes the content according to the skill level. (Claim 2).

  Further, in the present invention, when the user's skill level stored in the storage device is a beginner level, the control device is configured to activate a navigation function related to the setting of the testing machine. (Claim 3) is also possible.

  The inventions according to claims 4 and 5 solve the other problems described above by utilizing the configuration of the present invention in which an external general-purpose storage device is connected to the control device of the material testing machine. In the invention according to item 4, in addition to the above-described function, the control device saves the test result in the storage device, and automatically saves the file name when the test result is saved. It is characterized by doing.

The invention according to claim 5 is characterized in that, in addition to the above, the control device stores the momentary status of the tester and the error log in the storage device.
The present invention makes it possible to connect a general-purpose storage device such as a USB memory (USB flash memory) directly to the control device of the material testing machine, and each user has the storage device as its user information. When the storage device is connected to the control device of the material testing machine, the user information stored in the storage is read, and the display contents for setting are changed based on the information. By doing so, we are going to solve the problem.

  That is, a general-purpose storage device is owned for each user, and the user information is stored in the storage device. The user information is not particularly limited, but as in the invention according to claim 2, a skill level for the material testing machine can be suitably employed. In that case, in accordance with the read skill level, for example, a display is made so that all the functions can be set for the skilled person, and for beginners, for example, by restricting the setting items, only a simple test can be performed. I can't, but make it easy to set.

  In the invention according to claim 3, when the read user information is a beginner, the advanced test is performed without making an incorrect setting even by the beginner by activating a navigation function related to the setting of the testing machine. Make it possible.

  The invention according to claim 4 uses a storage device connected to the control device, and attempts to store test data in the storage device without connecting a personal computer. This is automatically added to the file name.

  Further, the invention according to claim 5 can also use a storage device connected to the control device, and store the test machine status and error log in the storage device, thereby leaving the test machine and operation history. it can.

  According to the present invention, by connecting a general-purpose storage device such as a USB memory to the control device of the material testing machine, user information is automatically read out, and a screen for setting conditions is displayed according to the information, for example, the user Therefore, it is possible to set conditions using a setting screen that is optimal for each of a plurality of users who use the material testing machine.

  Further, as in the invention according to claim 4 or 5, the personal computer is connected by storing test data or the status of the test machine or the error log every moment in a storage device such as a USB memory connected to the control device. Without having to learn the operation of the personal computer at the same time that it can reduce the cost required for the new installation of the material testing machine by the price of the personal computer. In addition, workability can be improved by omitting the operation procedure.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of an embodiment of the present invention, and is a diagram illustrating a block diagram representing a mechanical configuration and a block diagram representing a system configuration.

The testing machine main body 1 rotatably supports two screw rods 12a and 12b on a table 11, and supports both ends of the crosshead 13 via nuts 14a and 14b with respect to the screw rods 12a and 12b, respectively. It has a structure. The screw rods 12a and 12b are rotated by driving the load mechanism 15, whereby the cross head 13 moves up and down.
A pair of upper and lower grips 16a and 16b are attached to the upper surface of the table 11 and the lower surface of the cross head 13, so that both ends of the test body W are gripped by these grips 16a and 16b. To be used in the test.

  The upper gripping tool 16 b is attached to the crosshead 13 via the load cell 17, and a test force acting on the specimen W is detected by the load cell 17. The output of the load cell 17 is taken into the control device 2 every moment. Moreover, the output of the encoder 18 provided in the load mechanism 15 is input to the control device 2, and the momentary displacement of the crosshead 13 is detected from the output of the encoder 18. Further, the output of the extensometer 19 attached to the test body W is also taken into the control device 2. In the control device 2, among the detected values of these physical quantities, the physical quantity set on the test condition setting screen is used as a controlled variable, and the detected value is fed back to a separately set target value signal to thereby crosshead 13. To control the operation.

  A touch panel type display panel 21 is connected to the control device 2, and a screen for setting test conditions to be described later is displayed on the display panel 21, and a load-elongation curve or the like is displayed during the test. Test data is displayed. In addition, the control device 2 is provided with a plurality of USB connectors 2a and 2b, and one of the USB connectors 2a has a plurality of users of the material testing machine before each material testing machine is used. The USB memory 22 that is uniquely held is connected. The printer 23 is always connected to the other USB connector 2b.

  User information is written in each USB memory 22 held by the user. The user information includes not only the user name but also the skill level set in advance in a plurality of stages. Among them, the skill level corresponding to the user is written. On the other hand, the control device 2 individually stores display contents of a condition setting screen to be displayed on the display panel 21 corresponding to each of a plurality of skill levels.

Next, the operation when performing the test will be described with reference to the flowchart shown in FIG.
First, the user who performs the test connects the USB memory 22 held by the user to the USB connector 2a. As a result, the control device 2 automatically reads out the user information written in the USB memory 22 and displays a content setting screen corresponding to the skill level included therein.

  The user sets test conditions and the like on the setting screen, sets the test body W, and gives a command to start the test. Thereby, the control apparatus 2 performs a test under the set conditions. When the test is completed, the test data, the state of the testing machine, and the error log are stored in the USB memory 22. The control device 2 automatically assigns the file names for these savings, for example, using the user name and date and time. Test data and the like are output to the display panel 21 and the printer 23 as necessary.

  According to the embodiment of the present invention described above, the display content of the condition setting screen is changed according to the skill level of the user, and the condition setting can be performed based on the optimum display according to the skill level. In addition, test data, testing machine status, and error logs can be saved without connecting a personal computer, and the file name is set automatically, so that the total number of files compared to connecting a personal computer is reduced. The cost can be reduced and the user's operation procedure can be reduced.

  In the above embodiment, the example in which the content to be displayed on the setting screen is changed according to the skill level included in the user information has been described, but the present invention is limited to this. For example, when the contents of the test are determined for each user, it is possible to use the display contents individually in advance corresponding to the user name. In addition, it is possible to use such as setting the contents that each user should display on the setting screen in advance.

  When the display contents are changed according to the skill level, a navigation program related to setting test conditions is stored in the control device 2, and the skill level of the user information read when the USB memory 22 is connected is a beginner level. In this case, the navigation program can be configured to be executed.

In the configuration diagram of the embodiment of the present invention, a schematic diagram showing a mechanical configuration and a block diagram showing a system configuration are shown together. It is a flowchart showing the operation | movement content of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Test machine main body 11 Table 12a, 12b Screw rod 13 Cross head 14a, 14b Nut 15 Load mechanism 16a, 16b Grasp 17 Load cell 18 Encoder 19 Extensometer 2 Controller 2a, 2b USB connector 21 Display panel 22 USB memory 23 Printer W Specimen

Claims (5)

In a material testing machine that applies a load to a specimen to investigate the mechanical properties of the specimen,
An external general-purpose storage device is configured to be connectable to the control device that controls the main body of the tester, and the control device automatically stores user information stored in the storage device when the storage device is connected. A material testing machine characterized by automatically reading out and automatically changing the content of a test condition setting screen to be displayed on a display unit connected to the control device in accordance with the read information.   The user information stored in the storage device includes a skill level of the user, and the control device changes the content according to the skill level. The material testing machine described.   3. The material according to claim 2, wherein when the user's skill level stored in the storage device is a beginner level, the control device activates a navigation function related to setting of the testing machine. 4. testing machine.   The control device stores the test result in the storage device, and when the test result is stored, automatically saves the file name and stores the file. The material testing machine described in 1.   5. The material testing machine according to claim 1, wherein the control device stores the state and error log of the testing machine every moment in the storage device.

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