Material tester and control device of material tester

Abstract

To reduce burden on a worker to suppress generation of wrong operation.SOLUTION: A tensile tester 1 comprises: a tester body 2 that executes a tensile test; an instruction receiving unit 532 that receives an operation instruction for the tester body 2 based on operation CP from a user; and an instruction storage unit 541 that stores the contents and order of instruction information MC indicating the operation instructions for the tester body 2 received by the instruction receiving unit 532.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a materials testing machine and a control device for the materials testing machine. [Background technology]

[0002] Various techniques are known for reducing the workload of operators in material testing machines. For example, the materials testing machine described in Patent Document 1 stores the operations in order each time an operating section such as an operation panel or keyboard is operated after a command is given, and outputs an operation history based on the stored contents as an operating procedure manual in a specified format. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-207429 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the material testing machine described in Patent Document 1, the operator must operate the machine while referring to the generated operating procedure manual, and therefore there has been a demand for further reducing the operator's workload. Furthermore, when a worker performs an operation while referring to the generated operating procedure manual, there is a possibility that an operation error will occur, and therefore it is necessary to prevent an operation error.

[0005] The present invention has been developed in consideration of the above circumstances, and aims to provide a materials testing machine and a control device for a materials testing machine that can reduce the workload of operators and prevent the occurrence of operational errors. [Means for solving the problem]

[0006] A materials testing machine according to a first aspect of the present invention comprises a testing machine main body that performs materials tests, an instruction receiving unit that receives instructions for operations to be performed on the testing machine main body based on operations from a user, and an instruction memory unit that stores the content and order of instruction information indicating instructions for operations to be performed on the testing machine main body received by the instruction receiving unit.

[0007] A control device for a materials testing machine according to a second aspect of the present invention is a control device for a materials testing machine that is communicatively connected to a testing machine main body that performs material tests and controls the operation of the testing machine main body, and is equipped with an instruction receiving unit that receives instructions for operation of the testing machine main body based on operation from a user, and an instruction memory unit that stores the content and order of instruction information indicating instructions for operation of the testing machine main body received by the instruction receiving unit. Effect of the Invention

[0008] The material testing machine according to the first aspect of the present invention and the control device for the material testing machine according to the second aspect of the present invention store the contents and sequence of instruction information indicating operation instructions for the testing machine main body, and therefore it is possible to operate the testing machine main body based on the instruction information. This reduces the burden on the operator and suppresses the occurrence of operational errors. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing an example of the configuration of a tensile testing machine according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram illustrating an example of a configuration of a control device according to the present embodiment. [Diagram 3] FIG. 4 is a diagram illustrating an example of a configuration of an operation panel of the control device. [Figure 4] 11 is a table showing an example of the relationship between a user's operation and an instruction to a testing machine main body. [Diagram 5] FIG. 13 is a screen diagram showing an example of a hydraulic source operation screen for operating a hydraulic source. [Figure 6] 10 is a table showing an example of a command that an instruction receiving unit recognizes as an instruction. [Figure 7]13 is a screen diagram showing an example of an instruction list editing screen for updating the operation instruction list. FIG. [Figure 8] 13 is a screen diagram showing an example of an instruction list execution screen displayed while the operation instruction list is being executed; FIG. [Figure 9] 4 is a flowchart illustrating an example of an entire process executed by a control unit. [Figure 10] 10 is a flowchart illustrating an example of processing executed by a control unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the present embodiment will be described with reference to the drawings.

[0011] [1. Configuration of tensile testing machine] FIG. 1 is a diagram showing an example of the configuration of a tensile tester 1 according to the present embodiment. The tensile tester 1 of this embodiment applies a test force F to a test piece TP to perform a tensile test to measure mechanical properties such as the tensile strength, yield point, elongation, and reduction in area of ​​a sample. The test force F is a tensile force. The tensile tester 1 includes a tester body 2 that applies a test force F to a test piece TP, which is a material to be tested, to perform a tensile test, and a control unit 3 that controls the tensile test operation performed by the tester body 2. The tensile tester 1 corresponds to an example of a "material testing machine".

[0012] As shown in FIG. 1, the testing machine body 2 is configured by forming a load frame on a base 26 with a pair of support columns 28, 29 and a yoke 13, and by fixing a crosshead 10 to the support columns 28, 29.

[0013] A hydraulic actuator 18 is disposed on the base 26, and a lower grip 22 for gripping the lower end of the test piece TP is attached to a piston rod 181 of the hydraulic actuator 18. In addition, an upper grip 21 for gripping the upper end of the test piece TP is attached to the crosshead 10 via a load cell 14.

[0014] The hydraulic actuator 18 extends and retracts a piston rod 181 by controlling the direction and amount of pressure oil by a servo valve 20. As a result, the distance between the upper grip 21 and the lower grip 22 extends and retracts, and a test force F is applied to the test piece TP fixed between the upper grip 21 and the lower grip 22. The stroke of the hydraulic actuator 18, i.e., the displacement of the test piece TP, is detected by a differential transformer 19 attached to the hydraulic actuator 18.

[0015] The load cell 14 is a sensor that measures a test force F, which is a tensile load applied to the test piece TP, and outputs a test force measurement signal SG1 to the control unit 3. The differential transformer 19 is a sensor that measures the amount of displacement of the test piece TP and outputs to the control unit 3 a displacement measurement signal SG2 corresponding to the amount of displacement.

[0016] A displacement sensor 15 is disposed on the test piece TP. For example, a dumbbell-shaped test piece formed with a constriction in the center is used as the test piece TP. The displacement sensor 15 is a sensor that measures an elongation measurement value ED by measuring the distance between a pair of reference points on the test piece TP, and outputs an elongation measurement signal SG3 to the control unit 3. The pair of reference points are disposed above and below the constriction area of ​​the test piece TP.

[0017] The testing machine main body 2 further includes an electric power source GE and a hydraulic power source GP. The power source GE supplies power to each part of the testing machine main body 2. The power source GE supplies power to, for example, various motors to drive them. The power source GE also supplies power to a hydraulic pump and a hydraulic control valve (not shown) to drive them. The power source GE is configured as, for example, a voltage source. The power source GE supplies a corresponding voltage to each part of the testing machine main body 2. For example, the power source GE supplies a voltage of 100 V to the hydraulic pump and various motors, and supplies a voltage of 10 V to the control unit 3.

[0018] The hydraulic power source GP supplies hydraulic pressure to a hydraulic device constituting the testing machine main body 2. The hydraulic power source GP supplies hydraulic pressure to, for example, a hydraulic actuator 18 to drive the hydraulic actuator 18. That is, the hydraulic actuator 18 is driven by the hydraulic pressure supplied from the hydraulic power source GP, and a piston rod 181 is extended and contracted. The hydraulic power source GP includes a hydraulic pump and a hydraulic control valve (not shown), and generates hydraulic pressure by driving the hydraulic pump. The hydraulic pump is supplied with power from a power source GE. The hydraulic control valve adjusts the hydraulic pressure output from the hydraulic power source GP.

[0019] The control unit 3 includes a signal input / output device 40 and a control device 50. The signal input / output device 40 constitutes an input / output interface circuit for transmitting and receiving signals between the testing machine main body 2, and in this embodiment has a first sensor amplifier 42, a second sensor amplifier 45, a third sensor amplifier 43, and a servo amplifier 44. The first sensor amplifier 42 is an amplifier that amplifies the test force measurement signal SG1 output by the load cell 14 to generate a test force measurement value FD, and outputs the test force measurement value FD to the control device 50. The second sensor amplifier 45 is an amplifier that amplifies the extension measurement signal SG3 output by the displacement sensor 15 to generate an extension measurement value ED, and outputs the extension measurement value ED to the control device 50. The third sensor amplifier 43 amplifies the displacement measurement signal SG2 output by the differential transformer 19, and outputs a displacement measurement signal A3 indicating the displacement measurement value XD to the control device 50 as a digital signal. The servo amplifier 44 is a device that controls the servo valve 20 under the control of the control device 50. The control device 50 calculates a command value dX of the displacement measurement value XD, and transmits a command signal A4 indicating the command value dX to the servo valve 20.

[0020] [2. Control device configuration] Based on an operation by a user, the control device 50 controls the operation of the testing machine main body 2. Furthermore, the control device 50 causes the testing machine main body 2 to execute a tensile test. In this embodiment, the “user” includes an operator who operates the testing machine main body 2 .

[0021] The control device 50 includes a computer having a storage device such as a hard disk drive (HDD) or a solid state drive (SSD), an interface circuit with the signal input / output device 40, and various electronic circuits. An A / D converter is provided in the interface circuit with the signal input / output device 40, and the analog test force measurement signal SG1, elongation measurement signal SG3 and displacement measurement signal SG2 are converted into digital signals by the A / D converter. The control device 50 is not limited to a computer, and may be configured by one or more appropriate circuits such as an integrated circuit, such as an IC chip or an LSI.

[0022] FIG. 2 is a diagram showing an example of the configuration of the control device 50 according to the present embodiment. The control device 50 includes an operation panel 51 and a control unit 52 . The operation panel 51 includes a touch panel 511 and a plurality of operation sections 512-517. The touch panel 511 includes an LCD (Liquid Crystal Display) and displays various images on the LCD in accordance with instructions from the control unit 52. The touch panel 511 also includes a touch sensor arranged along the display surface of the LCD. The touch sensor detects a touch with a user's fingertip or pen, and transmits a detection signal to the control unit 52. The multiple operation units 512 to 517 will be described with reference to FIG. The touch panel 511 corresponds to an example of a "display."

[0023] The control unit 52 is configured by, for example, a personal computer, and controls the operation of the control device 50. The control unit 52 includes a processor 53 and a memory . The processor 53 is composed of a CPU (Central Processing Unit), an MPU (Micro-Processing Unit), and the like. The memory 54 is composed of a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.

[0024] The control unit 52 is not limited to a personal computer, and may be configured by one or more appropriate circuits such as an integrated circuit such as an IC chip or an LSI. The control unit 52 may also be configured by, for example, a tablet terminal, a smartphone, or the like. The control unit 52 may also include programmed hardware such as a digital signal processor (DSP) or a field programmable gate array (FPGA). The control unit 52 may also include a system-on-a-chip (SoC)-FPGA.

[0025] [3. Control Unit Configuration] As shown in FIG. 2, the control unit 52 includes a communication unit 531, an instruction receiving unit 532, a recording unit 533, a list generating unit 534, a display control unit 535, an operation control unit 536, an update unit 537, and an instruction memory unit 541. Specifically, the processor 53 of the control unit 52 executes a control program stored in the memory 54 or the storage device, thereby functioning as a communication unit 531, an instruction receiving unit 532, a recording unit 533, a list generating unit 534, a display control unit 535, an operation control unit 536, and an update unit 537. The processor 53 of the control unit 52 also executes a control program stored in the memory 54 or the storage device, thereby causing the memory 54 to function as an instruction storage unit 541.

[0026] The instruction memory unit 541 stores the contents and order of instruction information MC indicating operation instructions for the testing machine main body 2 received by the instruction receiving unit 532. The contents and order of the instruction information MC are recorded in the instruction memory unit 541 by the recording unit 533. In other words, the contents and order of the instruction information MC are written in the instruction memory unit 541 by the recording unit 533. The instruction information MC will be described with reference to FIG. Furthermore, the instruction storage unit 541 stores information indicating the operation instruction list LC generated by the list generation unit 534. The operation instruction list LC indicates the contents and order of the instruction information MC. The operation instruction list LC will be described with reference to FIGS.

[0027] The communication unit 531 controls communication with the signal input / output device 40 . The communication unit 531 receives, for example, the test force measurement value FD, the elongation measurement value ED, and the displacement measurement value XD from the signal input / output device 40. Furthermore, when the control unit 52 executes position control for the test force measurement value FD, for example, the control unit 52 calculates a command value dX of the displacement measurement value XD so that the test force measurement value FD coincides with the test force target value FT. Then, the communication unit 531 transmits a command signal A4 indicating the command value dX to the servo amplifier 44 of the signal input / output device 40.

[0028] Furthermore, the communication unit 531 transmits various pieces of instruction information MC to, for example, the load cell 14, the displacement sensor 15, the servo valve 20, the hydraulic power source GP, and the power source GE. The communication unit 531 transmits, for example, instruction information MC to set the offsets of the load cell 14 and the displacement sensor 15 to zero. The communication unit 531 also transmits, for example, instruction information MC to start up the hydraulic power source GP and the electric power source GE.

[0029] The instruction receiving unit 532 receives, based on an operation from a user, an instruction for an operation to be performed on the test machine main body 2. Furthermore, the instruction receiving unit 532 receives an operation from the user and generates instruction information MC indicating an instruction for an operation to be performed on the test machine main body 2. In this embodiment, the user inputs all operations for instructing the test machine main body 2 to perform operations using the operation panel 51. In other words, the operation panel 51 is configured to allow input of all operations for instructing the test machine main body 2 to perform operations. 4 to 8, a case where the instruction receiving unit 532 receives an instruction regarding a "warm-up operation" of the testing machine main body 2 will be described. The "warm-up operation" refers to starting up the testing machine main body 2 and transitioning it to a standby state for the tensile test before causing the testing machine main body 2 to perform a tensile test.

[0030] The recording unit 533 records the instruction information MC accepted by the instruction accepting unit 532 in the instruction storage unit 541. In other words, the recording unit 533 writes the instruction information MC accepted by the instruction accepting unit 532 in the instruction storage unit 541.

[0031] The list generating unit 534 generates an operation instruction list LC indicating the contents and order of the instruction information MC. The list generating unit 534 also records information indicating the operation instruction list LC in the instruction storage unit 541. The operation instruction list LC will be described with reference to FIGS.

[0032] The display control unit 535 displays the operation instruction list LC on the touch panel 511. Furthermore, based on operations by the user, the display control unit 535 displays various screens on the touch panel 511. For example, the display control unit 535 displays on the touch panel 511 a hydraulic power source operation screen 650 shown in Fig. 5, an instruction list editing screen 750 shown in Fig. 7, and an instruction list execution screen 800 shown in Fig. 8.

[0033] The operation control unit 536 operates the test machine main body 2 based on the operation instruction list LC. For example, the operation control unit 536 reads out the operation instruction list LC from the instruction storage unit 541, and operates the test machine main body 2 according to the contents and order of the instruction information MC indicated by the operation instruction list LC. Furthermore, when the operation control section 536 operates the test machine main body 2 based on the operation instruction list LC, the display control section 535 displays an instruction list execution screen 800 shown in FIG.

[0034] The update unit 537 receives an update operation by the user on the operation instruction list LC, and updates the operation instruction list LC in accordance with the update operation. An "update operation" refers to an operation for updating the operation instruction list LC. The update unit 537, for example, reads out the operation instruction list LC from the instruction storage unit 541 and accepts an update operation for the operation instruction list LC by the user. Then, the update unit 537 updates the operation instruction list LC in accordance with the accepted update operation. Furthermore, the update unit 537 records the updated operation instruction list LC in the instruction storage unit 541. Furthermore, when the update unit 537 updates the operation instruction list LC, the display control unit 535 displays an instruction list editing screen 750 shown in FIG.

[0035] FIG. 3 is a diagram showing an example of the configuration of the operation panel 51 of the control device 50. As shown in FIG. As shown in FIG. 3, the operation panel 51 includes, in addition to the touch panel 511 described with reference to FIG. 2, a power button 510, a numeric keypad section 512, a hydraulic power source operation section 513, an emergency stop button 514, a function key section 515, a setting key section 516, and a test operation key section 517.

[0036] The power button 510 is pressed to turn the power of the control device 50 on or off. The numeric keypad section 512 includes a so-called numeric keypad, which is pressed to input a numerical value.

[0037] The hydraulic power source operating section 513 is pressed when operating the hydraulic power source GP. The hydraulic power source operating section 513 has a start button 513A and a pressurizing button 513B. The start button 513A is pressed when turning on the hydraulic power source GP. By pressing the start button 513A, the hydraulic pump of the hydraulic power source GP is started. The pressurizing button 513B is pressed when increasing the pressure of the hydraulic pressure output from the hydraulic power source GP. The pressurizing button 513B increases the pressure of the hydraulic pressure output from the hydraulic power source GP via a hydraulic control valve arranged in the hydraulic power source GP.

[0038] The emergency stop button 514 is pressed when the operation of the testing machine main body 2 is to be stopped in an emergency. The instruction to the testing machine main body 2 when the emergency stop button 514 is pressed is determined according to the operation being performed by the testing machine main body 2. In other words, when the emergency stop button 514 is pressed, an instruction is given to the testing machine main body 2 to put the user in the vicinity of the testing machine main body 2 in the safest state. For example, when the emergency stop button 514 is pressed while the testing machine main body 2 is performing a tensile test, an instruction is given to the servo valve 20 to stop the extension and retraction operation of the piston rod 181 of the hydraulic actuator 18.

[0039] Function key section 515 includes four function keys F1 to F4, each of which has a preset function. For example, the user presses function key F1 when selecting a screen to be displayed on touch panel 511. Furthermore, function key F3 is pressed when setting the operation of control device 50. Furthermore, function key F4 is pressed when reading out various information stored in instruction storage unit 541 and displaying it on touch panel 511.

[0040] The setting key section 516 is operated when setting or updating a numerical value. The test operation key section 517 is operated when operating the operation of a tensile test. The test operation key section 517 includes a start key 517A and a stop key 517B. The start key 517A is pressed when starting a tensile test. The stop key 517B is pressed when stopping a tensile test.

[0041] [4. Specific examples of processing in the control section] Next, a warm-up operation of the testing machine main body 2 will be described as a specific example of the processing of the control unit 52 with reference to Figs.

[0042] [4-1. Specific examples of processing by the instruction reception unit] FIG. 4 is a diagram showing an example of an operation instruction correspondence table 600 showing the relationship between user operations and instructions to the test machine main body 2. As shown in FIG. The left column of the operation instruction correspondence table 600 lists the operations CP by the user, and the right column of the operation instruction correspondence table 600 lists the instruction information MC for the test machine main body 2 received by the instruction receiving unit 532 in response to the operation CP by the user. The operations CP by the user are executed sequentially from the top to the bottom of the operation instruction correspondence table 600. To distinguish each operation CP by the user, a step number SN is written on the left end of the operation instruction correspondence table 600. In the following description, a step of executing instruction information MC corresponding to step number SN "K" (here, integer K is 1 to 8) may be referred to as step SK. For example, step S1 indicates a step of executing instruction information MC corresponding to step number SN "1". Also, for example, step S3 indicates a step of executing instruction information MC corresponding to step number SN "3". In this embodiment, a case will be described in which the power source GE is turned on and the power supply to the control device 50 is turned on in advance.

[0043] For example, in step S1, the user presses the start button 513A shown in Fig. 3. The instruction receiving unit 532 receives the pressing of the start button 513A and generates instruction information MC indicating an instruction to the test machine main body 2, such as "Power Unit ON (standby 10 seconds)". Note that "(wait 10 seconds)" indicates that the wait time TW from when the hydraulic power source GP is instructed to start up and the start of the execution of the next step is 10 seconds after the start of the hydraulic power source GP is completed. The wait time TW is added to the command information MC by the command receiving unit 532 when the command receiving unit 532 generates the command information MC. The waiting time TW is set, for example, so that the user can easily check the operation of the testing machine main body 2 in each step. Also, for example, the waiting time TW is set to prevent multiple operations from proceeding simultaneously.

[0044] 3 to display a limit condition setting screen (not shown) on the touch panel 511. Then, various operations are performed on the limit condition setting screen to set the upper limit value of the test force F to "1 kN" and the lower limit value of the test force F to "-1 kN." When such a series of operations is received, the instruction receiving unit 532 generates instruction information MC indicating an instruction to the testing machine main body 2, such as "Limit setting test force 1 kN, -1 kN (standby 10 seconds)".

[0045] Also, for example, in step S3, the user presses the pressure button 513B shown in Fig. 3. The instruction receiving unit 532 receives the pressing of the pressure button 513B and generates instruction information MC indicating an instruction to the test machine main body 2, such as "LOAD ON (standby 10 seconds)".

[0046] Also, for example, in step S4, the user presses the function key F1 shown in Fig. 3 to display a hydraulic power source operation screen 650 shown in Fig. 4 on the touch panel 511. Then, various operations are performed on the hydraulic power source operation screen 650 to give an instruction to increase the operating hydraulic pressure of the hydraulic power source GP to "12 MPa". When such a series of operations is received, the instruction receiving unit 532 generates instruction information MC indicating an instruction to the testing machine main body 2, such as "change hydraulic pressure to 12 MPa (standby for 10 seconds)." The operation on the hydraulic source operation screen 650 will be described with reference to FIG.

[0047] FIG. 5 is a screen diagram showing an example of a hydraulic source operation screen 650 for operating the hydraulic source GP. The hydraulic power source operation screen 650 is displayed on the touch panel 511 by the display control unit 535, with an operating oil pressure selection button 651, a current value display unit 661, a set value display unit 671, a motor power supply frequency selection button 652, a current value display unit 662, a set value display unit 672, a change button 653, an increase button 654, a decrease button 655, a decision button 656, and a cancel button 657.

[0048] The hydraulic pressure selection button 651 is touched when changing the set value of the hydraulic pressure of the hydraulic source GP. The current value display section 661 displays the current value of the operating hydraulic pressure of the hydraulic pressure source GP. The set value display section 671 displays the set value of the operating oil pressure of the hydraulic pressure source GP. The motor power supply frequency selection button 652 is touched when changing the set value of the motor power supply frequency of the hydraulic power source GP. The current value display section 662 displays the current value of the motor power supply frequency of the hydraulic power source GP. The set value display section 672 displays the set value of the motor power supply frequency of the hydraulic power source GP.

[0049] The change button 653 is touched when changing the set value of the operating hydraulic pressure of the hydraulic power source GP or the motor power supply frequency. The increase button 654 is touched when increasing the set value of the operating hydraulic pressure of the hydraulic source GP or the motor power supply frequency. The decrease button 655 is touched when decreasing the set value of the operating hydraulic pressure of the hydraulic source GP or the motor power supply frequency.

[0050] The decision button 656 is touched when deciding the set value of the working oil pressure of the hydraulic power source GP or the motor power source frequency, and instructing the hydraulic power source GP to set the set value. The cancel button 657 is touched when canceling the set value of the operating hydraulic pressure of the hydraulic power source GP or the motor power supply frequency.

[0051] In step S4 of FIG. 4, in order to instruct the hydraulic source GP to increase its operating hydraulic pressure to "12 MPa", the user performs the following operations on the hydraulic source operation screen 650 shown in FIG. First, the hydraulic pressure selection button 651 is touched, and then the change button 653 is touched, thereby making it possible to change the set value of the hydraulic pressure of the hydraulic source GP. When the hydraulic pressure selection button 651 is touched, marks MK1 and MK2 indicating that the set value of the hydraulic pressure of the hydraulic source GP is changeable are displayed by the display control unit 535. In Fig. 4, the mark MK1 is shown by a thick line provided around the hydraulic pressure selection button 651, and the mark MK2 is shown by a thick line provided around the set value display unit 671. Next, the set value of the hydraulic pressure of the hydraulic source GP displayed in the set value display section 671 is changed to a set value desired by the user by touching the increase button 654 and the decrease button 655. In this example, the set value of the hydraulic pressure of the hydraulic source GP is changed to 12 MPa. Next, by touching the decision button 656, an instruction is issued to the hydraulic power source GP to change the operating hydraulic pressure of the hydraulic power source GP to the set value that has been set.

[0052] FIG. 6 is a table showing an example of a command CM that the instruction receiving unit 532 recognizes. In the command list 700 shown in FIG. 6, from left to right, command identification information NP, commands CM, and arguments PR are shown. The command identification information NP is a number that identifies the command CM. The command CM corresponds to the instruction information MC generated by the instruction receiving unit 532, and indicates a command for instructing the test machine main body 2 to perform an operation. The argument PR indicates various conditions that are attached to the command CM.

[0053] When the user performs a specific operation, the instruction receiving unit 532 outputs a command CM to the test machine main body 2. The specific operation indicates an operation that serves as a trigger for generating the command CM.

[0054] 4, when the instruction receiving unit 532 receives a press of the start button 513A, the instruction receiving unit 532 outputs a command CM indicating "start hydraulic power source" whose command identification information NP is "551" to the testing machine main body 2. The press of the start button 513A corresponds to an example of the specific operation.

[0055] Also, for example, in step S4 of Fig. 4, when the series of operations described with reference to Fig. 5 are received, the instruction receiving unit 532 outputs a command CM indicating "average value shift" with command identification information NP of "219" to the testing machine main body 2. Also, the command CM is given, as an argument PR, information indicating that the signal to be monitored is the "operating oil pressure of the hydraulic source GP" and that the reached value is "12 MPa". Touching the enter button 656 shown in Fig. 5 corresponds to an example of the specific operation.

[0056] As described with reference to Figs. 4 to 6, the instruction receiving unit 532 outputs a command CM to the test machine main body 2 when the user performs a specific operation. The specific operation indicates an operation that serves as a trigger for generating the command CM. Furthermore, the instruction receiving unit 532 generates instruction information MC when outputting the command CM to the test machine main body 2. Therefore, the instruction receiving unit 532 can appropriately generate the instruction information MC based on the operation from the user.

[0057] [4-2. Specific examples of update processing] 7 is a screen diagram showing an example of an instruction list editing screen 750 for updating the operation instruction list LC. The instruction list editing screen 750 is displayed on the touch panel 511 by the display control unit 535 based on an operation by the user when updating the operation instruction list LC. The instruction list editing screen 750 displays a list display area 760, a delete line button 751, an add message button 752, and a save button 753.

[0058] In the list display section 760, from left to right, a step number display section 761, an execution process display section 762, and a waiting time display section 763 are displayed. The step number display section 761 displays the step number SN. The execution process display section 762 displays the instruction information MC corresponding to the step number SN. The waiting time display section 763 displays the waiting time TW.

[0059] The line delete button 751 is touched when deleting one piece of instruction information MC from among the multiple pieces of instruction information MC displayed in the list display portion 760. Specifically, the user deletes one piece of instruction information MC by performing the following operation on the instruction list editing screen 750. First, one piece of instruction information MC is selected from the multiple pieces of instruction information MC displayed in the list display section 760 by touching one piece of instruction information MC. A selection mark MS is displayed on the selected instruction information MC by the display control section 535. In FIG. 7, the instruction information MC of step S2 is selected. Next, by touching the row delete button 751, the update section 537 deletes the row including the instruction information MC of step S2. Touching the row delete button 751 corresponds to an example of an "update operation".

[0060] The message addition button 752 is touched when adding, to the list display portion 760, instruction information MC for displaying a message on the touch panel 511. The first instruction information MD1 is added between the instruction information MC of step S4 and the instruction information MC of step S5 on the instruction list editing screen 750. When the operation of the testing machine main body 2 corresponding to the instruction information MC of step S4 is completed, the display control unit 535 displays a message indicated by the first instruction information MD1 on the touch panel 511. In addition, second instruction information MD2 is added after the instruction information MC of step S8. When the operation of the testing machine main body 2 corresponding to the instruction information MC of step S8 is completed, the display control unit 535 displays a message indicated by the second instruction information MD2 on the touch panel 511.

[0061] When adding the first instruction information MD1, the user performs the following operation on the instruction list editing screen 750. First, one of the instruction information MC displayed on the list display section 760 is touched to select one of the instruction information MC displayed on the list display section 760. Here, the instruction information MC of step S4 corresponding to the instruction information MC executed immediately before the first instruction information MD1 is selected. Then, by touching the message addition button 752, the display control section 535 inserts one line between the instruction information MC of step S4 and the instruction information MC of step S5. The display control section 535 displays a message mark MM in the execution process display section 762 of the inserted line, and the update section 357 makes it possible to input a message to the right of the message mark MM. The user inputs a message using a keyboard or the like (not shown). The second indication information MD2 is added in the same manner as the first indication information MD1.

[0062] The display control unit 535 displays a pause mark MT in the waiting time display portion 763 corresponding to each of the first instruction information MD1 and the second instruction information MD2. The pause mark MT is displayed in the waiting time display portion 763 by the display control portion 535 when the message addition button 752 is touched. The pause mark MT indicates that the operation of the test machine main body 2 is to be temporarily stopped. For example, the pause mark MT corresponding to the first instruction information MD1 indicates that the operation of the test machine main body 2 is to be temporarily stopped when the operation of the test machine main body 2 corresponding to the instruction information MC of step S4 is completed. Touching the add message button 752 corresponds to an example of an "update operation".

[0063] Furthermore, by selecting one piece of instruction information MC from the multiple pieces of instruction information MC displayed in the list display section 760, the update section 537 can update the selected instruction information MC and the waiting time TW corresponding to the instruction information MC. For example, when the instruction information MC in step S2 is selected as shown in Fig. 7, the update section 537 can update "1kN, -1kN" included in the instruction information MC based on an input operation from the user.

[0064] The save button 753 is touched by the user when the operation instruction list LC updated by the delete line button 751, the add message button 752, etc. is to be stored in the instruction storage unit 541. When the save button 753 is touched, the update unit 537 records the operation instruction list LC displayed in the list display unit 760 of the instruction list editing screen 750 in the instruction storage unit 541.

[0065] 7, the update unit 537 can receive an update operation by the user for the operation instruction list LC and appropriately update the operation instruction list LC in response to the update operation. Therefore, the user can easily update the operation instruction list LC.

[0066] Furthermore, since the operation of the test machine main body 2 is temporarily stopped when the message is displayed, the user can check the contents of the message at leisure, thereby improving user convenience.

[0067] [4-3. Specific examples of processing by the operation control unit] 8 is a screen diagram showing an example of an instruction list execution screen 800 displayed during execution of the operation instruction list LC. The instruction list execution screen 800 is displayed on the touch panel 511 by the display control unit 535 when the operation control unit 536 operates the test machine main body 2 based on the operation instruction list LC. The instruction list execution screen 800 displays an execution state display section 801, a list display section 810, a stop button 803, an execution button 804, and an end button 805. The list display section 810 displays an operation instruction list LC, and includes a step number display section 811 and an execution process display section 812 . The step number display section 811 displays the step number SN. The execution process display section 812 displays the instruction information MC corresponding to the step number SN.

[0068] The execution status display section 801 indicates the step number SN currently being executed among the eight steps having step numbers SN ranging from "1" to "8." In Fig. 8, the execution status display section 801 indicates "5 / 8 in execution," and the operation of the test machine main body 2 corresponding to the instruction information MC of step S5 out of the eight steps is currently being executed. Moreover, the display control unit 535 displays an in-progress mark MB in the list display portion 810 corresponding to the step S5 being executed.

[0069] The stop button 803 is touched when temporarily stopping the operation of the test machine main body 2. When the stop button 803 is touched, the operation control section 536 temporarily stops the operation of the test machine main body 2.

[0070] The execute button 804 is touched when starting a "warm-up operation" consisting of eight steps whose step numbers SN are "1" to "8." The execute button 804 is also touched when restarting the operation of the testing machine main body 2 that was temporarily stopped by touching the stop button 803. The step to be resumed may be the same as the step that was temporarily stopped by touching the stop button 803, or may be a step different from the step that was temporarily stopped by touching the stop button 803. When the same step that was temporarily stopped by touching the stop button 803 is to be resumed, the temporarily stopped operation of the testing machine main body 2 is resumed. When a step different from the step temporarily stopped by touching the stop button 803 is to be resumed, the operation of the testing machine main body 2 corresponding to this step is started.

[0071] The end button 805 is touched when the operation of the test machine main body 2 is to be ended.

[0072] 8, the display control unit 535 displays the operation instruction list LC on the touch panel 511 so that the instruction information MC corresponding to the operation being executed by the test machine main body 2 can be visually confirmed by displaying the execution status display section 801 and the execution mark MB. Thus, the user can easily check the progress status of the multiple steps included in the operation instruction list LC. This improves user convenience.

[0073] In this embodiment, the display control unit 535 displays the execution state display unit 801 and the execution mark MB, but it is sufficient that the display control unit 535 displays at least one of the execution state display unit 801 and the execution mark MB.

[0074] [5. Operation of the control unit] Next, the processing of the control unit 52 will be described with reference to FIGS. FIG. 9 is a flowchart showing an example of the entire process executed by the control unit 52 according to the present embodiment. First, in step S101, the control unit 52 executes a “recording process.” The “recording process” refers to a process of recording information indicating the operation instruction list LC in the instruction storage unit 541. Specifically, the instruction receiving unit 532 receives an instruction for an operation to be performed on the test machine main body 2 based on an operation from the user, and generates instruction information MC indicating the instruction for the operation to be performed on the test machine main body 2. Then, the recording unit 533 records the instruction information MC received by the instruction receiving unit 532 in the instruction storage unit 541. Next, the list generating unit 534 generates an operation instruction list LC indicating the contents and order of the instruction information MC, and records the generated operation instruction list LC in the instruction storage unit 541.

[0075] Next, in step S102, the control unit 52 executes an “editing process.” The “editing process” refers to a process of updating the operation instruction list LC based on an operation by the user and recording the updated operation instruction list LC in the instruction storage unit 541. 7 based on a user operation. The update unit 537 updates the operation instruction list LC based on the user operation on the instruction list edit screen 750, and records the updated operation instruction list LC in the instruction storage unit 541.

[0076] Next, in step S103, the control unit 52 executes an "execution process", and then the process ends. The "execution process" indicates a process of instructing the test machine main body 2 to perform an operation corresponding to the instruction information MC according to the operation instruction list LC. Specifically, the display control unit 535 displays an instruction list execution screen 800 shown in Fig. 8 based on a user operation. Then, the operation control unit 536 transmits instruction information MC corresponding to the operation instruction list LC to the testing machine main body 2 based on a user operation on the instruction list execution screen 800, thereby causing the testing machine main body 2 to execute a series of operations (for example, "warm-up operation").

[0077] FIG. 10 is a flow chart showing an example of the processing executed by the control unit 52 in step S103 of FIG. 10, a case will be described in which the display control unit 535 displays the instruction list execution screen 800 shown in FIG. 8 on the touch panel 511 in advance. First, in step S201, the operation control unit 536 determines whether or not an execution instruction to start a "warm-up operation" has been received. If the operation control unit 536 determines that an instruction to start the "warm-up operation" has not been received (step S201; NO), the process goes to a standby state. If the operation control unit 536 determines that an instruction to start the "warm-up operation" has been received (step S201; YES), the process proceeds to step S203. Then, in step S203, the operation control section 536 sets the initial value of the step number SN to "1." Note that in Fig. 10, the number of steps N indicates the step number SN. Next, in step S205, the operation control section 536 outputs instruction information MC for the Nth step to the test machine main body 2 to execute an operation corresponding to the instruction information MC. The Nth step corresponds to step SN. The number of steps N is any one of 1 to 8. Next, in step S207, the display control unit 535 displays on the instruction list execution screen 800 that the test machine main body 2 is executing the operation of the Nth step.

[0078] Next, in step S209, operation control unit 536 determines whether or not a touch on stop button 803, that is, an instruction to pause, has been accepted. If the operation control unit 536 determines that a pause instruction has not been received (step S209; NO), the process proceeds to step S217. If the operation control unit 536 determines that a pause instruction has been received (step S209; YES), the process proceeds to step S211. Then, in step S211, the operation control section 536 temporarily halts the operation of the test machine main body 2 corresponding to the instruction information MC for the Nth step. Next, in step S213, the display control unit 535 displays that the operation of the test machine main body 2 corresponding to the instruction information MC of the Nth step is temporarily stopped on the instruction list execution screen 800. For example, the display control unit 535 causes the stop button 803 on the instruction list execution screen 800 to flash. Next, in step S215, the operation control unit 536 determines whether or not the execution button 804 has been touched, that is, whether or not an execution instruction has been received. If the operation control unit 536 determines that an execution instruction has not been received (step S215; NO), the process goes into a standby state. If the operation control unit 536 determines that an execution instruction has been received (step S215; YES), the process returns to step S205.

[0079] If the operation control unit 536 determines that the instruction to pause has not been received (step S209; NO), in step S217, the operation control unit 536 determines whether or not the end button 805 has been touched, i.e., whether or not an instruction to end processing has been received. If the operation control unit 536 determines that an instruction to end processing has been received (step S217; YES), the process proceeds to step S225. If the operation control unit 536 determines that an instruction to end processing has not been received (step S217; NO), the process proceeds to step S219. Then, in step S219, the operation control section 536 determines whether or not the operation of the test machine main body 2 corresponding to the instruction information MC of the Nth step has been completed.

[0080] If the operation control unit 536 determines that the operation of the test machine main body 2 corresponding to the instruction information MC of the Nth step has not been completed (step S219: NO), the process returns to step S209. If the operation control unit 536 determines that the operation of the test machine main body 2 corresponding to the instruction information MC of the Nth step has been completed (step S219: YES), the process proceeds to step S221. Then, in step S221, the operation control unit 536 increments the number of steps N by one. Next, in step S223, the operation control unit 536 determines whether or not the number of steps N is greater than the total number of steps NT. The total number of steps NT indicates the maximum value of the number of steps. In the embodiment shown in Figs. 4 to 8, the total number of steps NT is "8". If the operation control unit 536 determines that the number of steps N is not greater than the total number of steps NT (step S223: NO), the process returns to step S205. If the operation control unit 536 determines that the number of steps N is greater than the total number of steps NT (step S223: YES), the process proceeds to step S225. Then, in step S225, the display control unit 535 displays the fact that the processing has ended on the instruction list execution screen 800. After that, the processing ends.

[0081] In this way, the operation control section 536 can operate the testing machine main body 2 based on the operation instruction list LC. This reduces the burden on the operator and suppresses the occurrence of operational errors.

[0082] Furthermore, the user can operate the stop button 803, the execute button 804, and the end button 805 displayed on the instruction list execution screen 800, and operate the test machine main body 2 based on these operations. This improves user convenience.

[0083] [6. Aspects and Effects] It will be understood by those skilled in the art that the above-described embodiment is a specific example of the following aspects.

[0084] (Section 1) The material testing machine of the first embodiment comprises a testing machine main body that performs material tests, an instruction receiving unit that receives operation instructions for the testing machine main body based on operation from a user, and an instruction memory unit that stores the content and order of instruction information indicating operation instructions for the testing machine main body received by the instruction receiving unit.

[0085] According to the material testing machine described in the above item 1, the instruction storage unit stores the contents and order of instruction information indicating operation instructions for the testing machine main body. This makes it possible to operate the testing machine body based on the instruction information, thereby reducing the burden on the operator and preventing operational errors.

[0086] (Section 2) The material testing machine described in paragraph 1 further includes a list generation unit that generates a list of operation instructions indicating the content and order of the instruction information, and a display control unit that displays the list of operation instructions on a display.

[0087] According to the material testing machine described in paragraph 2, the display control unit displays on the display a list of operation instructions indicating the contents and order of the instruction information. Therefore, the worker can easily check the contents and the order of the instruction information, thereby improving the convenience for the worker.

[0088] (Section 3) The material testing machine according to claim 2, further comprising an operation control unit that operates the testing machine body based on the list of operation instructions.

[0089] According to the material testing machine described in the third aspect, the operation control section operates the testing machine body based on the list of operation instructions. Therefore, the testing machine body can be operated based on the list of operation instructions, which reduces the burden on the operator and suppresses the occurrence of operational errors.

[0090] (Section 4) In the material testing machine described in paragraph 3, the display control unit displays the list of operation instructions on the display so that the instruction information corresponding to the operation being executed by the testing machine main body is visible.

[0091] According to the material testing machine described in paragraph 4, the display control unit displays the list of operation instructions on the display so that the instruction information corresponding to the operation being executed by the testing machine main body can be visually confirmed. Therefore, the operator can visually confirm the instruction information corresponding to the operation being executed by the testing machine main body from the list of operation instructions displayed on the display, thereby improving the convenience for the operator.

[0092] (Section 5) In the material testing machine described in any one of paragraphs 2 to 4, the material testing machine further includes an update unit that receives an update operation by a user on the operation instruction list and updates the operation instruction list in accordance with the update operation.

[0093] According to the material testing machine described in the above item 5, the update unit updates the operation instruction list in response to an update operation by the user. This allows the operator to easily update the operation instruction list, thereby improving operator convenience.

[0094] (Section 6) The material testing machine according to any one of claims 1 to 5, further comprising a recording unit configured to record the instruction information in the instruction memory unit.

[0095] According to the material testing machine described in the sixth aspect, the recording unit records the instruction information in the instruction storage unit. Therefore, the contents and sequence of the instruction information indicating the operation instructions for the testing machine main body received by the instruction receiving unit can be stored in the instruction storage unit. Therefore, it becomes possible to operate the testing machine main body based on the instruction information. As a result, it becomes possible to reduce the burden on the operator and suppress the occurrence of operational errors.

[0096] (Section 7) The control device of the material testing machine in the second embodiment is a control device of a material testing machine that is communicatively connected to a testing machine main body that performs material tests and controls the operation of the testing machine main body, and is equipped with an instruction receiving unit that receives instructions for operation of the testing machine main body based on operation from a user, and an instruction memory unit that stores the content and order of instruction information indicating instructions for operation of the testing machine main body received by the instruction receiving unit.

[0097] According to the control device for a materials testing machine described in paragraph 7, the same effects as those of the materials testing machine described in paragraph 1 are achieved.

[0098] [7. Other embodiments] The tensile testing machine 1 according to this embodiment is merely an example of an embodiment of a material testing machine according to the present invention, and can be modified and applied as desired without departing from the spirit and scope of the present invention. For example, in the present embodiment, the case where the material testing machine is the tensile testing machine 1 has been described, but the present embodiment is not limited to this. The material testing machine may apply a test force to the test piece TP and deform the test piece TP to perform a material test. For example, the material testing machine may be a compression testing machine, a bending testing machine, or a torsion testing machine.

[0099] In addition, in this embodiment, the case where the testing machine main body 2 is caused to execute a series of operations constituting a "warm-up operation" has been described, but this embodiment is not limited to this. It is sufficient if the testing machine main body 2 is caused to execute a series of operations. For example, the testing machine main body 2 may be caused to execute a "test preparation operation", or the testing machine main body 2 may be caused to execute a "test end operation".

[0100] 1 and 2 show functional configurations, and the specific implementation form is not particularly limited. In other words, it is not necessary to implement hardware that corresponds to each functional unit individually, and it is of course possible to implement a configuration in which one processor executes a program to realize the functions of multiple functional units. Also, some of the functions realized by software in the above embodiments may be realized by hardware, or some of the functions realized by hardware may be realized by software.

[0101] 9 and 10 are divided according to the main processing contents in order to facilitate understanding of the processing of the control unit 52. There is no limitation to the manner of division or names of the processing units shown in the flowcharts of FIG. 9 and 10, and the processing units can be divided into more processing units according to the processing contents, or one processing unit can be divided to include more processes. The processing order of the above flowcharts is also not limited to the example shown in the figures.

[0102] The control device 50 of the tensile tester 1 causes the processor 53 included in the control unit 52 to execute a control program corresponding to the control method of the tensile tester 1. The control program can also be recorded in a computer-readable recording medium. The recording medium can be a magnetic or optical recording medium or a semiconductor memory device. Specifically, a portable or fixed recording medium such as a flexible disk, HDD, CD-ROM (Compact Disk Read Only Memory), DVD, Blu-ray (registered trademark) Disc, magneto-optical disk, flash memory, or card-type recording medium can be used. The recording medium can also be a non-volatile storage device such as a RAM, ROM, or HDD that is an internal storage device included in the control unit 52. The control program can also be stored in a server device or the like, and downloaded from the server device to the control unit 52. [Explanation of symbols]

[0103] 1. Tensile testing machine (material testing machine) 2 Testing machine body 3. Control Unit 10 Crosshead 14 Load Cell 15 Displacement Sensor 18 Hydraulic Actuator 181 Piston rod 19 Differential transformer 20 Servo valve 21 Upper gripping tool 22 Lower gripping tool 26 Tables 28, 29 pillars 40 Signal input / output device 42 First sensor amplifier 43 3rd sensor amplifier 44 Servo Amplifier 45 Second sensor amplifier 50 Control device 51 Operation Panel 510 Power button 511 Touch panel (display) 512 Numeric keypad 513 Hydraulic power source operation unit 513A Start button 513B Pressure button 514 Emergency stop button 515 Function key section 516 Setting key section 517 Test operation key section 517A Start key 517B Stop key 52 Control section 53 Processors 531 Communications Department 532 Instruction Reception Department 533 Recording Department 534 List Generation Unit 535 Display control unit 536 Motion Control Unit 537 Update Department 54 Memory 541 Instruction storage unit 600 Operation Instructions Correspondence Table 650 Hydraulic power source operation screen 700 Command List 750 Instruction list editing screen 800 Instruction list execution screen 801 Execution status display section 803 Stop button 804 Run button 805 Exit button 810 List display section CM Commands CP operation F1~F4 function keys FD test force measurement value GE power source GP hydraulic power source LC Operation Instruction List MC instruction information SG1 Test force measurement signal SG2 Displacement measurement signal SG3 Elongation measurement signal SN Step number TW Waiting Time XD Displacement measurement value

Claims

1. A testing machine body for performing material testing; an instruction receiving unit that receives a plurality of instructions corresponding to each of a plurality of operations constituting a test preparation operation to be performed by the testing machine body before the material test is performed based on an operation by a user; an instruction storage unit that stores a plurality of pieces of instruction information indicating each of the plurality of instructions for the test preparation operation received by the instruction receiving unit and a sequence of the plurality of pieces of instruction information; a list generating unit that generates a list of operation instructions indicating contents of the plurality of pieces of instruction information and an order of the plurality of pieces of instruction information; an operation control unit that causes the testing machine main body to execute the contents of the plurality of pieces of instruction information in the order of the plurality of pieces of instruction information based on the list of operation instructions, thereby executing the test preparation operation; A material testing machine comprising:

2. A display control unit that displays the list of operation instructions on a display.

2. A material testing machine according to claim 1.

3. the display control unit displays the list of operation instructions on the display so that the instruction information corresponding to the test preparation operation being executed by the testing machine main body can be visually recognized.

3. A material testing machine according to claim 2.

4. an update unit that receives an update operation for the operation instruction list by a user and updates the operation instruction list in response to the update operation, 4. A material testing machine according to claim 2 or 3.

5. A recording unit that records the instruction information in the instruction storage unit. A material testing machine according to any one of claims 1 to 4.

6. A control device for a materials testing machine that is communicatively connected to a testing machine body that performs a materials test and controls an operation of the testing machine body, an instruction receiving unit that receives a plurality of instructions corresponding to each of a plurality of operations constituting a test preparation operation to be performed by the testing machine body before the material test is performed based on an operation by a user; an instruction storage unit that stores a plurality of pieces of instruction information indicating each of the plurality of instructions for the test preparation operation received by the instruction receiving unit and a sequence of the plurality of pieces of instruction information; a list generating unit that generates a list of operation instructions indicating contents of the plurality of pieces of instruction information and an order of the plurality of pieces of instruction information; an operation control unit that causes the testing machine main body to execute the contents of the plurality of pieces of instruction information in the order of the plurality of pieces of instruction information based on the list of operation instructions, thereby executing the test preparation operation; A control device for a materials testing machine comprising:

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