JP2980933B2 - Impact test piece automatic processing system and impact test piece automatic processing method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic impact test piece processing system and an automatic impact test piece processing method, and more particularly to an automatic impact test piece automatic processing and mass production. The present invention relates to a suitable automatic impact test piece processing system and automatic impact test piece processing method.

[Conventional technology]

As a conventional impact test piece automatic processing system,
As described in JP-A-63-166762, there has been proposed an automatic processing system for processing an impact test piece by moving a tool in accordance with a predetermined position with respect to an impact test piece set on a jig. . However, this automatic machining system is not configured to measure the machining accuracy of the tool, and to correct the moving position of the tool when the machining accuracy deviates from the required accuracy,
If the processing operation is continued for a long time, there is a problem that the processing accuracy required for the manufactured impact test piece cannot be secured.

[Problems to be solved by the invention]

In other words, the impact test piece automatic processing system according to the above-described conventional technique takes into account mechanical displacement, particularly elongation due to heat of the machine spindle, and changes in the reference plane position of a jig that supports the test piece and serves as a processing reference. Absent. Also, no consideration is given to measuring and correcting machining errors caused by changes in the wear of the working tool during continuous operation, the material of the test piece material to be randomly input, the standard and size of the test piece, and the like. As a result, in the conventional impact test piece automatic processing system, there is a problem that the accuracy of the dimensions of each part of the impact test piece determined based on the jig reference surface does not satisfy the required accuracy as the processing operation progresses.

 Hereinafter, the above problem will be specifically described with reference to the drawings.

FIG. 13 is a front view of the impact test piece, and FIG. 14 is an end view of the impact test piece. The height H and the height h of the bottom are defined in the impact test piece 1, and these dimensions H and h are different from each reference surface of the jig 2 as apparent in FIGS. This is determined by the positional relationship with the end mill 3 or the notch processing cutter 4. Therefore, when the positional relationship between the reference plane 5A and the end mill 3 determined by the required accuracy H ₀ as shown in FIG. 17 changes as shown in FIG. The processing accuracy 7 (experimental value) with respect to the required accuracy 6 of the test piece 1 changes as shown in FIG. 19 (the horizontal axis is the number of test pieces, and the vertical axis is the accuracy), and finally exceeds the allowable accuracy 8,
Processing failure occurs.

FIG. 20 shows an example of the effect of the difference in the material of the test piece 1 on the processing accuracy. In this figure, first, a machining accuracy state 9 of a machining example using a normal material is shown, and then, a machining accuracy situation of a machining example of a material having high rigidity or a material that is difficult to cut such as stainless steel.
10 is shown. As is clear from this illustrated example,
The processing accuracy varies depending on the material of the test piece.

FIG. 21 shows an example in which the type of the test piece is the same, but the machining accuracy 7 deviates from the allowable accuracy 8 due to the wear of the machining tool and the decrease in sharpness as the machining operation progresses.

FIG. 22 shows an example of the effect of the difference in the size of the test piece on the processing accuracy. In this figure, first, the processing accuracy state 11 of the processing example using the standard test piece 1a is shown, and thereafter, the processing accuracy state 12 of the processing example using the small-sized sub-size test piece 1b is shown. As is apparent from the illustrated example, the processing accuracy varies due to the difference in the dimensions of the test pieces.

In the above, various changes in processing accuracy have been described.
In practice, the above-mentioned conditions are complicatedly overlapped, and a required accuracy cannot be ensured.

Means for solving the above problems include, for example,
As shown in the figure, the target value H ₀ ′ = H ₀ always including the remaining allowance.
The first processing is performed at + α (FIG. 23 (A)), the dimension H ′ of the processed test piece 1 is measured by the contact type touch sensor 13 (FIG. 23 (B)), and the difference δ from the target value is measured. = H ₀ ′ −H ′ and perform final finishing (FIG. 23 (C)). However, in this method, since the processing time is increased by the amount of the preliminary finishing, there is a problem that the processing capacity is reduced and the number of test pieces that can be processed is drastically reduced until the tool life is reached. Furthermore, there arises a problem that the number of equipments for securing the processing capacity increases, and the equipment non-operation time for tool life replacement increases.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to perform the minimum necessary measurement and correction on the positional relationship between a jig and a tool, standards, and the like. Processing accuracy can be secured and maintained,
Accordingly, it is an object of the present invention to provide an impact test piece automatic processing system and an impact test piece automatic processing method which can achieve automation of a processing operation and make the most effective use of the processing equipment.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a first jig for supporting and fixing a material, and a first jig for cutting a test piece from the material.
Processing means, a second jig having a reference surface for processing, supporting and fixing the test piece, a second processing means for surface processing the outer peripheral surface of the test piece, A third processing means for forming a notch, a position of the reference surface of the second jig and dimensions of a test piece being processed are measured, displacement of the reference surface and a processing machine, wear of the processing means, Decrease in amount and sharpness,
A measuring means for measuring a processing error caused by the difference in the test piece size, a correcting means for correcting the processing error obtained by the measuring means, a first counter for measuring an operation amount of the processing machine, and When the standard, material, and size of the test piece to be processed are changed or when the first counter outputs an output, the processing error is measured and corrected by operating the measuring means and the correcting means. And control means for performing the control.

Preferably, the control means is configured such that a displacement of the reference plane and the processing machine, a reduction in wear and sharpness of the processing means, and a processing error caused by a difference in the test piece size do not exceed a predetermined allowable range. It is configured to issue a command to execute the correction.

Further, preferably, the timing at which the measurement and the correction determined by the control means are performed is the standard of the test piece,
It is assumed that the continuity of any one of the material and the size is interrupted.

Further preferably, when the control means performs the measurement / correction with respect to the displacement of the reference plane and the processing machine, the interval at which the measurement / correction is performed is changed according to the standard of the test piece. I do.

Preferably, the measuring means is a contact-type position detecting means attached to a main shaft of the machine as a means for measuring a processing error caused by a displacement of the reference plane and the processing machine; Means for measuring the position of the reference plane in operation, wherein the correction means performs the correction by moving the reference point based on the difference obtained thereby.

Further, preferably, the measuring means is a contact type position detecting means attached to a main shaft of the machine as a means for measuring a processing error caused by a decrease in a wear amount or sharpness of the processing means, and processing is being performed by the position detecting means. Means for measuring the size of the test piece, and the correction means performs the correction by reflecting the difference between the measured value obtained thereby and the target value in the next processing target value.

In order to achieve the above object, the present invention provides a first fixing step of supporting and fixing a material, a first processing step of surface-machining an outer peripheral surface of the material, and a step of cutting a test piece from the material. 2, a second fixing step of supporting and fixing the test piece to a processing reference plane, a third processing step of surface processing the outer peripheral surface of the test piece, and forming a notch in the test piece. A fourth processing step to be formed, a first measurement step of measuring the position of the reference surface and the size of the test piece being processed, a second measurement step of measuring a processing error, and the second measurement step A correcting step for correcting the processing error obtained in the step, a third measuring step for measuring the operating time of the processing machine in the processing step, and changing the type of the test piece to be continuously processed or the third step.
A correction control step of interrupting the first and second measurement steps and the correction step with respect to the first to third processing steps based on any of the measured values in the measurement step to correct the processing error. Shall be provided.

[Action]

The impact test piece automatic processing system according to the present invention includes a measuring means and a correction means for measuring and correcting a processing error, and a control means for causing the measuring means and the correction means to execute the measurement and correction of the processing error to form an impact test piece. In the machining operation to be performed, factors that cause the machining accuracy of the test piece formed when performing the machining operation continuously to deviate from the required accuracy, that is, occurrence of displacement between the jig reference surface and the processing machine, The control means monitors differences in specifications, materials, sizes, or the long-term operation of the processing machine, and when the processing accuracy of the test piece may deviate from the required accuracy, the control means operates the measuring means and the correction means, and performs processing. Corrects machining errors that occur in the machine at the appropriate timing, so that test specimens can always be processed with high accuracy regardless of the processing conditions, and the test specimen processing can be fully automated. To.

Further, in the method for automatically processing an impact test piece according to the present invention, in the correction control step, the first to the third are based on either the change of the type of the test piece to be continuously processed or the measurement value in the third measurement step. The first and second measurement steps and the correction step are interrupted for the third processing step to correct the processing error, so that the test is always performed with high accuracy regardless of the processing conditions as described above. Processes specimens and enables full automation of specimen processing.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, an apparatus configuration of an automatic impact test specimen processing system according to the present invention will be described with reference to FIG. 1 and FIG. FIG. 1 is an overall perspective view of a processing machine, and FIG. 2 is a system configuration diagram. In the following drawings, the same reference numerals are given to the same elements already appearing in the drawings described above.

In FIG. 1, the processing machine 40 has three movement axes X, Y, and Z as shown in the figure, and the positions of the impact test piece and the processing tool can be freely changed by these three axes. Reference numeral 21 denotes a table movable in the X-axis direction.
The jig 2 and the jig 22 for fixing the test piece on the upper surface of
Is arranged. The jigs 2 and 22 are arranged at adjacent positions, the jig 22 is used for processing the upper and side surfaces of the test piece, and for cutting the test piece, and the jig 2 is used for processing the cut cross section of the cut test piece. It is used for notch processing and deburring. In the jig 2, reference numerals 24 and 25 indicate clamps, respectively. Reference numeral 26 denotes a base on which the table 21 is placed.

The processing tool is mounted on a machine spindle 27, and in the illustrated example, the end mill 3 is mounted. The mounting part 28 on which the machine main shaft 27 is disposed is movable in the Z-axis direction. Further, the support portion 29 on which the mounting portion 28 is provided is movable in the Y-axis direction. Various types of processing tools to be used are set in advance in a storage magazine 30 of a complete rotation system, are automatically selected according to a processing program, and are exchanged through the exchange arm 31 to the machine spindle.
Attached to 27. The processing tools set in the storage magazine 30 include the contact type touch sensor 13, the metal saw 32 used for cutting, the notch processing cutter 4, the notch deburring tool 33, and the like.

In FIG. 2, the processing machine described based on FIG.
40 is indicated by a two-dot chain line block, and a host controller 41 is provided for the processing machine 40. The processing machine 40 has a built-in control device for executing arithmetic and control therein, and a host control device.
Using the various data sent from 41, the CPU executes necessary computation and control processes, and performs a communication operation to the host control device 41 according to the processing status. When the arithmetic and control functions built into the processing machine 40 are expressed as circuit elements, as shown in FIG. 2, the machine movement amount calculation unit 42, the movement axis control unit 43, the correction amount calculation unit 44, and the timing calculation unit 45 , A touch position calculation unit 46, a tool use time counter 47, and an operation time counter 48. The start command, the material of the test piece, the standard, and the data of the size are input from the higher-level control device 41 to the machine movement amount calculator 42. The machine movement amount calculation unit 42 calculates a machine movement amount based on each of the input data,
The position data obtained thereby is sent to the movement axis control unit 43. The moving axis control unit 43 includes motors 49X, 49Y, and 49Z for each of the X, Y, and Z axes.
Are supplied with required control signals. 13 is the machine spindle
The touch sensor attached to the touch sensor 27, the touch signal obtained by the touch sensor 13 is a touch position detection unit 46
The touch position is detected with reference to the machine coordinate value provided from the movement axis control unit 43. Touch position detector
The touch position obtained in 46 is provided to the correction amount calculation unit 44. The correction amount calculator 44 compares the respective data sent from the higher-level control device 41 with the touch position data sent from the touch position detector 46, calculates the correction amount, and calculates the correction amount. The amount is given to the mechanical movement amount calculation unit 42. The mechanical movement amount calculation unit 42 calculates position data for performing correction using the correction amount provided from the correction amount calculation unit 44, and supplies the position data to the movement amount control unit 43. Further, the tool operating time and the operating time obtained by the tool operating time counter 47 and the operating time counter 48 are input to the timing calculating unit 45, and the timing calculating unit 45 determines whether or not the timing needs to be measured, Outputs a measurement command if necessary. The machine movement amount calculation unit 42 calculates the machine movement amount required for measurement based on the measurement command, and controls each movement axis via the movement axis control unit 43. During this measurement, a touch signal is input by the touch sensor 13, the machine coordinate at the moment of the touch is used as a touch position, a comparison is made with a target value, and a correction amount calculator 44 calculates a correction amount. The processing position in the processing machine is further calculated based on this correction amount, and the moving amount of each moving axis is controlled in the same manner as described above.

In addition to the processing machine 40,
Between a transport control unit 50 that controls a transport device that transports the test piece, a robot control unit 51 that controls a robot that handles the test piece, and a jig control unit 52 that controls a jig that clamps the test piece. The exchange of instructions is performed in.

Next, the operation of the automatic impact test specimen processing system according to the present invention based on the processing machine having the above configuration will be described with reference to FIGS.
Description will be made with reference to the drawings.

First, the concept of measurement / correction of mechanical displacement and the like and the timing of correction in the automatic impact test specimen processing system will be described with reference to FIGS. As shown in FIG. 3, when the mechanical or electric touch sensor 13 of which the diameter φD and the length 1 are attached to the main shaft 27 is used, and the contact is made with the reference surfaces 5A and 5B of the jig 2 By using the machine coordinate values X, Z held inside the machine in, the difference between the coordinate value and the position X ₀ , Z ₀ of the reference plane position 5A determined in advance by the machining work program, the machining tool Is corrected so that the machining accuracy does not exceed the allowable accuracy range. By performing this correction, the accuracy transition of the test piece previously shown in FIG. 19 returns to the initial accuracy at the time when the correction is made (a) as shown in FIG. The accuracy also satisfies the required accuracy again, and becomes good. By performing the above correction at appropriate and efficient timing while the processing machine is moving,
With the minimum number of times of measurement and correction, the processing accuracy of the processing machine can always be maintained within an allowable value range.

As a means for measuring the relative position between the position of the reference plane 5A and the center of the machine spindle 27, a non-contact type measuring device such as a laser length measuring device 61 as shown in FIGS. 5 and 6 is used. Can be. As another modified embodiment, as shown in FIGS. 7 and 8, the correction mechanism 62 can be provided on the side of the jig 2 having the reference surface. In this configuration,
The jig 2 has a guide member 63 at a lower portion, and is provided movably along a guide portion of the guide member 63. The correction mechanism 62 has a servo motor 64 and a screw member 65, and the servo motor The screw 65 is rotated by 64 to move the jig 2.

Next, when processing test pieces of various materials or sizes, as shown in Fig. 9, measurement and correction are performed at the time when the material and size are changed (a) to obtain stable processing accuracy. Can be.

Next, when a reduction in the wear amount or sharpness of the processing tool becomes a problem, as shown in FIG. 10, the time set in advance by the use time of the processing tool (or the number of processed test pieces) (or The set number of test pieces), that is, the dimensions of the test piece after processing at the time of (a) are measured, the difference from the target value is determined, and the processing accuracy is corrected by performing correction from the next test piece based on this difference. It is possible to stably maintain accuracy.

As described above, it is configured to check the required accuracy, material, size, operating time of the processing machine, and operating time of the processing tool of the test piece randomly input to the processing machine that makes the impact test piece, and machine displacement, etc. Is configured to perform measurement and correction at an optimal timing.

Next, using the machining process diagram shown in FIGS. 11A and 11B and the flowchart shown in FIG. 12, an example of a series of machining operations including a measurement and correction process by the impact test piece moving machining system according to the present invention Will be described. The flowchart in FIG. 12 is a diagram for explaining the timing of measurement and correction.

In step S1, first, the reference surfaces 5A and 5B of the test piece fixing jig 2 are measured by the electric touch sensor 13 before the line is operated, and the distances X ₀ and l ₀ from the reference position 81 are obtained. These values are stored. In the next step S2, the reference plane 5B
Then, the cutter 4 for notch processing is brought into contact therewith, and the position lc of the cutter 4 at the moment of the contact is obtained and stored.

The above steps S1 and S2 are preparatory operations before the processing operation, and when these steps are completed, the line by the processing machine 40 is operated. In the following processing work by the processing machine,
As an example, three test pieces are taken from one test piece material. These three test specimens are processed one by one from the standing test specimen material, and cut.

In step S3, the test piece material 82 is put into the jig 22, and at that time, the positions X and l of the processing reference surfaces 5A and 5B of the jig 2 from the reference position 81 are measured using the touch sensor 13,
Remember. In step S4, after the upper surface of the first test piece 1A at the top of the test piece blank 82 is finished using the end mill 3, the side surface is temporarily finished. In step S5, the processing width is measured by the touch sensor 13 (corresponding to step 93 in FIG. 12). In step S6, the difference between the measured actual processing width and the target value is corrected (corresponding to step 94 in FIG. 12), and the side surface of the test piece 1A is finished using the end mill 3 again (in FIG. 12). Corresponding to step 95). In the next step S7, the first test piece 1A is cleaved by the metal saw 32 while its upper part is held by the robot 83, and the first test piece 1A is cut off from the test piece material 82. The cut test piece 1A is once grasped and changed by the robot 83, and then is carried into the jig 2 and the already processed surface is brought into contact with the reference surfaces 5A and 5B of the jig 2 by the clamps 24 and 25. As a result, it is reliably pressed against the jig 2 (step S8). In step S9, performs temporary finishing end mill 3 by correcting the difference between the measured reference surface position X in step S3 in operation a reference surface position X ₀ of the previous operation, which is measured in step S1.
Then, by using the touch sensor 13 the position X ₁ of the provisional-finished surface was measured (step S10), and compares it with a reference surface position X, dimensions after machining _{H '= | X-X 1} | calculation Finish processing after correcting the difference from the target value (step S1
1). In step S12, clamp the test piece 1A to the jig 2
Pressing with 4,25, and correcting the displacement δ ₁ = l ₀ -l of the reference plane 5B before and after operation with respect to the cutter position lc at the time of contact with the reference plane before operation, thereby processing with the notch processing cutter 4, A V-groove is formed. In the last step S13, the burrs generated in the notch are removed by the deburring tool 33, and the test piece thus obtained
1A is carried out of the processing machine by the robot 83.

Although the processing steps shown in FIGS. 11A and 11B have been described by focusing only on the processing step of the test piece 1A first collected from the test piece raw material 82, the first test piece is actually The work process of the second test piece is included in the work process,
The working process of the second test piece is partially performed. That is, when Step S11 of the first test piece 1A is completed, the finishing mill 3 moves to the jig 22 and
The step S6 is performed on the second test piece located above the test piece material 82. However, in step S6 relating to the second test piece, the upper surface and both side surfaces are finished by the end mill 3. After that, the first test piece 1A
Step S12 is continued for.

The content of the correction performed in the process of processing the first test piece is for dealing with mechanical displacement, standard, material, size, and the like.

When the processing of the first test piece is completed, the second test piece of the test piece material 82 is to be collected next.
3, S4, S5, S9, S10 are omitted, and for the correction to cope with mechanical displacement, etc., the second test is performed using the correction data obtained in the machining process of the first test piece as it is. Processing of pieces. Therefore, steps S6, S7, S8, S11, S12, and S13 are performed for the processing of the second test piece. The processing step for the third remaining test piece is the same as that for the second test piece. Looking at the above steps in FIG. 12, they correspond to steps 95 and 98.

When three test pieces are collected from the first test piece material 82, the next test piece material is set on the jig 22 (in the case of YES in step 99 in FIG. 12). In processing the second test piece material, if the standard, material, and size of the test piece to be collected are the same as those of the first test piece element, the second test piece material A processing operation is performed using the same correction value in the same step as the processing step of the third test piece (in the case of NO in step 93 in FIG. 12). At this time, if the correction timing of the reference plane position is determined by the machine operation time (or the number of processed test pieces), the measurement in step S3 is performed, and the correction value is updated by comparison with the target value ( (Corresponds to steps 91 and 92 in FIG. 12.)

If it is determined that it is time to correct the amount of tool wear based on the usage time of the tool, the measurement in step S5 is performed after the second or third test piece is finished, and the difference from the target value is measured. Based on the above, the correction data obtained by the comparison is used for correction in the subsequent processing of the test piece (corresponding to steps 96 and 97 in FIG. 12).

If any one of the standard, material, and size is different from that of the first test piece material in the processing of the second test piece material, the same as the processing work performed on the first test piece material described above. A processing step is executed (corresponding to steps 93 and 94 in FIG. 12). Generally speaking, the respective standards, materials, and sizes of the n-th test piece material and the (n + 1) th test piece material are compared, and when all are the same, steps S3, S4, S5, S9, S10 are omitted. When the timing at which the machine displacement needs to be corrected based on the machine operation time has been reached for the remaining steps, step S3
Is additionally executed, and when the timing at which tool wear needs to be corrected depending on the tool usage period has arrived, a test piece measurement step is additionally executed after finishing. Further, if any one of the standard, the material, and the size is different, all the steps from step S3 to step S13 are executed.

Through the above processing steps, it is possible to continuously perform high-precision processing on various test piece materials randomly input to the processing machine 40, and to produce various types of impact test pieces in large quantities and quickly. can do.

As described above, in the machining operation, the amount of work is measured and corrected at the optimal timing, and the system that corrects the machine displacement, tool clearance, and tool wear is adopted, so it is fully automatic and high for a long time Processing accuracy can be maintained,
In addition, it is possible to realize an impact test piece automatic processing system capable of maximally utilizing a machine and a tool.

In the above embodiment, the timing for measuring the reference plane position of the jig 2 is not always immediately before the related processing. This is due to the effective use of the waiting time for machining that occurs in connection with peripheral equipment, for example, a robot for handling test specimens, an automatic tool changer, and the like, and a reduction in tool change time. The timing for performing the above measurement may be during any step immediately before the relevant processing.

The standard of the test piece is, for example, JIS or ASTM (U.S. standard). Therefore, taking into account such differences in standards, when measuring and correcting the displacement between the machining reference plane and the machine, the timing varies according to the standards. In the case of the standard, the interval is short.

〔The invention's effect〕

As is clear from the above description, according to the present invention, all the factors that may cause the processing accuracy of the continuously manufactured impact test piece to deviate from the required accuracy are checked, and the processing error is generated at the necessary timing. Is designed to measure and correct the temperature, so that a test piece of any material and size can be stably produced with high processing accuracy regardless of the order in which it is put into the processing machine. Full automation of the automatic processing system can be achieved. In addition, the timing of measurement and correction has been optimized, the number of times has been minimized, and the time-consuming processing of temporary finishing, measurement, and correction finishing has been minimized. In addition, since unnecessary temporary finishing is eliminated, the use time of the tool can be extended, the cycle until the tool change can be lengthened, and the downtime of the equipment due to the tool change can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a processing machine according to the present invention, FIG. 2 is a block configuration diagram of an automatic impact test piece processing system according to the present invention, FIG. 3 is an explanatory view showing alignment for measurement, FIG. FIG. 5 is an explanatory view showing a change in processing accuracy due to execution of correction, FIGS. 5 and 6 are views showing another measuring apparatus, FIG. 7 is a front view showing an example in which a position adjusting mechanism is provided on a jig side, 8 is an end view of FIG. 7, FIGS. 9 and 10 are diagrams showing changes in machining accuracy due to correction execution, FIGS. 11A and 11B are process diagrams showing machining steps, and FIG. FIG. 13 is a flowchart showing measurement / correction timings in a work flow, FIG. 13 is a front view of a test piece, FIG. 14 is an end view of the test piece, and FIGS. Fig. 19 ~
FIG. 22 is a diagram for explaining an example in which the processing accuracy varies and deteriorates, and FIG. 23 is a diagram for explaining a conventional method for improving the processing accuracy. [Explanation of symbols] 1,1A ... Impact test piece 2,22 ... Jig 3 ... End mill 5A, 5B ... Machining reference plane 13 ... Touch sensor 24, 25 ... Clamp 27 ... Machine spindle 40 ... … Processing machines 41 …… Host controller

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kozo Maeda 1 Kobe-cho, Fukuyama-shi, Hiroshima Nippon Kokan Co., Ltd. Inside Fukuyama Works (72) Inventor Shigeru Tsuchiya 1 Kobe-cho, Fukuyama-shi, Hiroshima Nippon Kokan Co., Ltd. Fukuyama Works (56) References JP-A-1-92050 (JP, A) JP-A-3-131452 (JP, A) JP-A-62-42941 (JP, U) JP-B-52-44476 (JP, A) B2) (58) Field surveyed (Int.Cl. ⁶ , DB name) B23Q 15/12 B23P 23/00 G01N 1/28

Claims (7)

(57) [Claims] 1. A first jig for supporting and fixing a material, first processing means for cutting out a test piece from the material, and a reference surface for processing, a first jig for supporting and fixing the test piece. Jig, second processing means for surface processing the outer peripheral surface of the test piece, third processing means for forming a notch in the test piece,
The position of the reference surface of the second jig and the dimensions of the test piece being processed are measured, and the displacement of the reference surface and the processing machine, a reduction in wear and sharpness of the processing means, and a difference in the size of the test piece are measured. Measuring means for measuring a processing error caused by the above, a correcting means for correcting the processing error obtained by the measuring means, a first counter for measuring an operation amount of the processing machine, and the test for continuously processing. When the standard, material, size of the piece is changed, or when the first counter outputs, the control means measures and corrects the processing error by operating the measuring means and the correcting means. An automatic impact test specimen processing system. 2. The impact test piece automatic processing system according to claim 1, wherein the control means is configured to determine a displacement of the reference plane and a processing machine, a reduction in wear and sharpness of the processing means, and a difference in the size of the test piece. An automatic impact test specimen processing system configured to issue a command to execute the correction so that a generated processing error does not exceed a predetermined allowable range. 3. The automatic shock test piece processing system according to claim 1, wherein the timing of executing the measurement and the correction determined by the control means is a continuity of one of a standard, a material, and a size of the test piece. An automatic impact test piece processing system characterized in that it is at the time when the operation is interrupted. 4. The automatic impact test piece processing system according to claim 1, wherein the control means executes the measurement / correction with respect to the displacement of the reference plane and the processing machine.
An automatic impact test piece processing system, wherein an interval at which correction is performed is changed in accordance with a standard of a test piece. 5. The impact test piece automatic processing system according to claim 1, wherein the measuring means measures a processing error caused by a displacement of the reference plane and the processing machine.
A contact-type position detecting unit attached to a machine spindle, and a unit for measuring the position of the reference plane before and during operation by the position detecting unit, and the correcting unit calculates a difference obtained thereby. An automatic shock test specimen processing system, wherein the correction is performed by moving a reference point based on the reference point. 6. The automatic impact test piece machining system according to claim 1, wherein said measuring means is a contact means attached to a main shaft of the machine as means for measuring a machining error caused by a reduction in wear or sharpness of said machining means. Expression position detection means;
Means for measuring the size of the test piece being processed by the position detection means, the correction means by reflecting the difference between the measured value and the target value obtained thereby to the next processing target value An automatic impact test piece processing system, wherein the correction is performed. 7. A first fixing step for supporting and fixing the material, a first processing step for surface-machining the outer peripheral surface of the material, a second processing step for cutting out a test piece from the material, and a processing standard. A second fixing step of supporting and fixing the test piece to a surface, a third processing step of processing the outer peripheral surface of the test piece, and a fourth processing step of forming a notch in the test piece. A first measuring step of measuring the position of the reference plane and the size of the test piece being processed, a second measuring step of measuring a processing error, and correcting the processing error obtained in the second measuring step. Correction step, a third measurement step of measuring the operating time of the processing machine in the processing step, and changing the type of the test piece to be processed continuously or measuring the measurement value in the third measurement step. The first and second measurements for the first to third processing steps based on either Impact test specimen automatic processing method characterized by comprising a correction control step of extent and corrects the machining error and interrupt execution of the correction step.