JPH09292322A - Test piece tray, test-piece feeding device and thickness measuring device in automatic tensile tester and simple hardness measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set test pieces stably by positioning a plurality of the test pieces on a rectangular tray, arranging the test pieces in orderly sequence and mounting the test pieces and to enable measurement of hardness and thickness and transmission of testing conditions with the test pieces being mounted. SOLUTION: A plurality of test pieces 1 are mounted in the direction intersecting the feeding direction of a rectangular test-piece tray 2. Respective curve parts 1A at four parts are placed against protruding parts 5, and the positions are determined. Even the test piece 1 having the expansion and contraction of about 10% from treatment for oil resistance, aging and the like is positioned always constantly by the curved part 1A in contact with the protruding part 5. Since the tray 2 is in a pallet shape, there are no extrusion and the gap of the test piece 1, and the test piece can be fed to a tensile tester. When the tray 2 is inserted into a test-piece feeding device, the position of the original point of the tray 2 is detected with a detecting hole 7. Furthermore, with the test piece being mounted on the tray 2, the thickness measurement and the hardness detection of the test piece 1 can be performed through a pulling hole 8 and a through hole 9. Furthermore, the test conditions can be transmitted and supplied by means of a bar code label 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test piece tray for supplying a test piece in an automatic tensile tester, a test piece supply device capable of continuously supplying the test piece, and a thickness measurement of the test piece. The present invention relates to a thickness measuring device that can be continuously performed.

[0002]

2. Description of the Related Art Conventional test piece trays are used to store test pieces one by one in a case, or multiple test pieces are placed in a recess in a pallet-shaped tray. It was stored and supplied. These test piece supply devices are devices for stacking and supplying test piece trays in order from bottom to top, and the conventional thickness measuring apparatus takes out the test pieces from the test piece tray and measures the thickness. It was

[0003]

As described above, in the conventional test piece tray, the test pieces are stored in a case-like one by one and supplied, or a plurality of test pieces in a pallet-like shape are supplied. Since it was stored in the recess in the tray and supplied, it is impossible to store the test piece expanded by immersing in oil in the case and the recess, or In addition, there is a problem that the test piece contracted by the aging process has a gap in the case and the recess, and the test piece cannot be accurately moved and chucked, so that the tensile strength test cannot be performed accurately. For this reason, it is also an object to make it possible to continuously perform a tensile strength test on various kinds of test pieces. In the conventional test strip feeder, the trays are stacked in order from bottom to top, so it is not possible to add test strip trays until all the test strips in the feeder have been fed. In order to cause an interrupt, the automatic tensile tester had to be stopped once, or the interrupt had to be given up, and there was a problem that the efficiency was very poor. Further, regarding the conventional thickness measurement of the test piece, since the test piece was taken out from the tray or the pallet, the number of steps up to that time was increased and the efficiency was very poor. Further, the elongation measurement of the test piece in the contact type mark tracing device was given without obtaining information on the processing such as the hardness and oil resistance of the test piece of the tracking arm clamp pressure with respect to the parallel portion of the test piece. For this reason, the test piece is given more clamping pressure than necessary, and for oil-proofed test pieces, the tracking arm clamp position may deviate from the predetermined position during the test due to the oil adhering to the surface of the test piece. There was a problem that was.

Therefore, regarding the test piece tray, even if the test piece expands due to oil resistance treatment or contracts due to heat aging of the test piece, it is desirable that the test piece tray be stable regardless of the shape of the test piece. Further, conventionally, the test piece is taken out from the tray and the side thickness of the test piece is measured.However, when the side thickness is applied, a predetermined weight is placed on the side thickness indenter, so that the indenter pressure causes the test piece to adhere to the base frame. As a result, there is a problem that the test piece cannot be conveyed and thus the supply device stops. Further, even if the side thickness of the test piece is measured on the tray, it is necessary to take some kind of anti-adhesion measure such as an anti-adhesion material. Moreover, until now, the test condition items are set according to the test conditions of the test piece before starting the tensile test, but with an automated tensile tester, it is necessary to set the test condition of several hundred test pieces. There is also a problem that efficiency is greatly reduced due to the work time, the setting labor, the input error, and the like.
On the other hand, regarding the test strip supply device, when the test strip mounting tray is inserted into the storage case, the supply system is stopped by accidentally inserting the tray halfway. Wrong stacking,
When pulling out the tray from the supply case during the test, it is necessary to stop the supply device once. All of these works are complicated and work efficiency is low, and there are various problems.

In order to solve the above problems and problems, the present invention relates to a tray on which a test piece is mounted, even if the test piece is expanded due to oil resistance treatment or contracted due to aging of the test piece. Regardless of this, test pieces can be set on the trays in a stable state, and test pieces with the same test conditions are mounted on each tray so that the test conditions can be transmitted from each tray to the tensile test section. In addition, regarding the test piece supply device, additional test by mounting the test piece on the tray where the test is completed, cancellation when mounting the test piece by mistake,
The purpose was to be able to suddenly respond to requests for interrupt testing without stopping the test equipment. Furthermore, in order to increase the test efficiency, with respect to the side thickness, while mounting the test piece,
It also allows for lateral thickness, and in this case also takes measures to prevent problematic specimens from sticking to the lateral thickness base. In addition, the contact arm clamp pressure of the contact-type mark tracing device that measures the elongation at a predetermined position of the test piece in the tensile test is set to the optimum arm clamp pressure for the test piece in consideration of the hardness of the test piece and the oil-proof treatment state. The automatic control is possible.

[0006]

In order to achieve the above object, the test strip tray of the present invention does not have a recess unlike the conventional tray, but instead, a plurality of test strips are mounted on a square tray. The present invention is characterized in that a plurality of sets of four projecting portions each having a curved shape can be provided so that the test piece can be arranged and mounted in order and the predetermined position of the test piece can be brought into contact with the test piece. In addition, in order to perform tensile strength tests with various types of test pieces, a bar code label containing test piece data is attached to the tray so that the test condition data can be known in advance. A sensor was provided to detect whether or not the device was correctly inserted. In addition, the hole for measuring thickness facing the parallel part of the test piece is used so that the thickness can be measured without removing the test piece from the tray. It is characterized in that a through hole for hardness detection is provided facing the portion.

The test strip supply device capable of storing the test strip tray stores the test strip trays one by one, and the storage case can be moved up and down at each step of each tray by operating the monocarrier. In order to test the tray test piece at the position, it is stopped at the pull-out position such as side thickness, simple hardness measurement, and transportation. Other trays can be freely inserted and removed even during the test without stopping the tray storage device. Further, when the test strip tray is inserted, a sensor capable of detecting the presence or absence of the test strip and a sensor capable of detecting the origin position of the test strip tray are provided.

Further, the thickness measuring device of the present invention enables continuous thickness measurement with the test piece mounted on the test piece tray supplied from the test piece supply device, and the thickness measuring device and the thickness measuring base are integrated. In parallel with the test piece tray, make the tip of the thickness measuring base contact the parallel part of the test piece on the hollow hole of the test piece tray when measuring the thickness. The test piece parallel part is sandwiched between the tip part and the detection part of the thickness gauge by slightly projecting it, and a predetermined force is applied from the top of the thickness gauge to measure the thickness. Furthermore, in order to prevent the test piece from adhering to the tip of the thickness-measuring base by applying force to the parallel part of the thickness-measuring base during thickness measurement, the tip of the thickness-measuring base is made of a porous material that can inhale and eject air. It was formed of a metal material. Furthermore, the thickness measurement base moves to the hardness detection through hole, and after the thickness measurement at the wide portion of the test piece, a predetermined force is further applied to enable simple hardness detection in the same manner as the thickness measurement. The clamp contact pressure of the contact-type marking line tracking arm can be changed based on the data.

The test strip tray of the present invention is provided with curved projections positioned so as to come into contact with the curved portions of the test strip for accurate positioning even when the test strip expands and contracts.
Further, a function for detecting the barcode label and the origin of the tray is provided in order to supply the paper efficiently. Further, a thickness-measuring hole was provided so that the thickness of the test piece could be measured with the test piece placed on the test piece tray. The present invention test strip supply device,
A supply groove is provided in the supply case so that it can be supplied one by one,
Install a sensor that detects the origin of the test piece tray and a sensor that checks the existence of the test piece tray to improve efficiency. Furthermore, the mono-carrier can move the supply case up and down to add / stop and interrupt test pieces at any time. The thickness measuring device of the present invention includes a thickness measuring device and a thickness measuring base as a set, and the thickness can be measured by moving the thickness measuring base. Further, air is sucked and ejected at the tip of the thickness measuring base, so that the test piece does not adhere to the thickness measuring device and the thickness measuring base.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described based on examples with reference to the drawings. FIG. 1 shows a test piece tray. The test piece 1 is placed on the test piece tray 2. Further, the test piece tray 2 has a pull-out bar 3 on the front side and a pull-out hole 4 on the opposite side. The test piece tray 2 is provided with a protrusion 5, a bar code label 6, a detection hole 7, a thickness-measuring hole 8, and a hardness detection through hole 9.
Is provided. The test piece tray 2 is configured to be inserted into the supply device from the side of the drawing hole 4 in the form of a pallet having a rectangular shape. The pull-out bar 3 is provided for manually loading and unloading the test strip tray 2 into and from the test strip feeding device 10, and the pull-out hole 4 is provided from the feeding device 10 to a thickness measuring device 18, a suction pad (not shown) and an automatic tensile tester ( It is formed so as to be attached to a drawer hand 17 provided for sending out to (not shown).

A plurality of test pieces 1 are placed in a direction intersecting the supply direction, and further, a set of four projecting portions 5 are provided so as to hit the curved portions 1A at four positions of the test piece 1 for stationary placement. There is. It is considered that the test piece 1 may expand or contract by about 10% due to the treatment of oil resistance and aging, so that the projections 5 are set based on this, and a plurality of sets of four projections 5 are set. It is provided. Further, in order to continuously perform tensile strength tests on various kinds of test pieces, a bar code label 6 on which data is input is attached to the left side of the extraction hole 4 side in order to input data to a computer in advance. Further, when the test strip tray 2 is inserted into the test strip feeder 10, a detection hole 7 is provided in the left portion on the back side in the feeding direction in order to detect the origin position of the tray. After being supplied to the supply device 10, a punched hole 8 is formed at a position facing the parallel portion 1B of the test piece 1 so that the thickness can be measured while the test piece tray 2 is placed on the test piece tray 2. A through hole 9 is provided at a position facing the wide portion 1C of the test piece 1 so that the hardness can be detected with the test piece 1 placed on the test piece 2. In addition to the bar code, a detection hole 28 for identifying the test piece is provided. In the embodiment, the protrusion 5 is formed in a circular shape, but the protrusion 5 need not be circular as long as the portion corresponding to the curved portion 1A of the test piece 1 is curved. Further, if a plurality of types of test pieces are used as the barcode label 6 as well, a plurality of barcode labels may be attached accordingly, and similarly,
The number of through-holes 9 may be at least one if the test piece 1 is of one type.

The test strip feeder 10 shown in FIGS.
Is composed of a monocarrier 11 and a rectangular supply case 12. The supply case 12 has a plurality of supply grooves 13 on the left and right sides inside the supply case 12, and the supply grooves 13a, 13b, 1
3c ... and test piece trays 2a, 2b, 2c ...
Are supplied one by one, and when performing a tensile strength test, a test piece tray 2a on which a plurality of test pieces 1 are placed,
2b, 2c ... Supply grooves 13a, 1 of the supply case 12
It can be started by inserting into 3b, 13c ...

When the test piece tray 2 is inserted into the supply groove 13 and inserted, the detection hole photosensor 14 is located at the position where the detection hole 7 of the test piece tray 2 comes, and the tray confirmation photosensor 15 is on the opposite side. As shown in FIG. 4, it has a structure that covers the supply groove 13,
The sensor is set to operate depending on whether the light beam is transmitted from one of the upper and lower sides and transmitted or reflected. For example, when the light beam emitted from the photo sensor 14 is transmitted and the light beam emitted from the photo sensor 15 is blocked, it means that the test piece tray is inserted in the correct position, and at that time, it is adjacent to the supply grooves 13a, 13b, 13c. The confirmation lamps 16a, 16b, 16c, ... Which are lined up side by side are turned on, and at the same time, they are mechanically locked. Therefore,
When there is no test piece tray 2a, 2b, 2c ..., When the test piece tray 2a, 2b, 2c ... Is not completely inserted, the confirmation lamp does not light up, and the test piece tray 2a,
Confirmation lamp 1 when 2b, 2c ... are inserted too much
6a, 16b, 16c, ... Blink, and an alarm is issued. In the embodiment, the photo sensors 14 and 15
There should be at least one each.

When the test piece trays 2a, 2b, 2c ... Are sent to the thickness measuring device 18, the test piece having the test piece to be subjected to the tensile strength test automatically is operated by the vertical movement operation of the monocarrier 14. The case 12 is moved up and down and sent to the position where the single tray 2a is pulled out and the hand 17 is present. At this time, another test strip tray (not shown) cannot be inserted into the supply groove 13a in which the test strip tray 2a is inserted. However, it is possible to replace the test piece trays in the other supply grooves 13b, 13c ... Or to add the test piece trays to the supply grooves to which the test piece trays are not mounted.

2 and 6 to 8, the pull-out hand 17 pulls out the test piece supply device 10 to the position of the thickness measurement base 19 of the thickness measurement device 18. At this time, the test condition data input to the bar code label 6 on the test strip tray 2 is read, and this data is sent to a computer (not shown). The lower end of the parallel portion 1B of the test piece passes through the thickness-measuring hole 8 provided in the test piece tray 2 and the tip end portion 20 of the thickness-measuring base provided in the thickness-measuring base 19
The thickness measuring set cylinder 21 is moved upward so as to come into contact with, and the tip end portion 20 is set to slightly project from the upper surface of the test piece tray 2. The thickness gauge cylinder 23 provided on the thickness gauge base 19 is lowered, and the detector 24A of the thickness gauge 24 is brought into contact with the upper portion of the parallel portion 1B of the test piece to measure the thickness in association with the weight of the thickness weight 22. Is done. After the thickness measurement, the thickness gauge cylinder 23 rises, and the detector 24A of the thickness gauge separates from the upper portion of the test piece. At this time, air is sucked from the tip portion 20 of the thickness measurement base and the lower portion of the test piece is attached. This prevents the detector from adhering to the detector. Furthermore, the thickness measurement set cylinder 21 moves downward, and the thickness measurement base tip portion 20 separates from the lower portion of the test piece. At this time, air is sent out from the tip portion 20 to prevent the adhesion to the lower portion of the test piece.

The thickness measuring device moving motor 25 located below the thickness measuring set cylinder 21 passes through the hardness detecting through hole 9 provided in the test piece tray 2, and the wide end 1C of the test piece is covered with the upper surface of the tip 20. Thickness measurement base 19 so that 20A contacts
To move. Here, the thickness is measured first, and the hardness detecting waist cylinder 27 is further lowered to measure the thickness 22.
When a force is applied to the hardness detection weight 26 located further above, the force is applied to the thickness-measuring weight 22 and moves in the same manner as above.
The simple hardness can be detected by applying a force to the detection portion 24A of the thickness gauge and the tip portion 20A of the thickness measurement base above and below the wide portion 1C of the test piece. When the above is completed, the drawer hand 17 further advances, and the thickness measurement and the simple hardness detection are similarly performed on the next test piece. In the embodiment of FIG. 1, the hardness detection through-hole 9 is formed one by one for each test piece, but as described above, if there is one kind of test piece for one tray. Since the through hole 9 only needs to be formed in one place and the data is input to the computer by the bar code, the hardness is detected only in the place where the through hole 9 exists, and not in the place where the through hole 9 does not exist. The thickness of the next test piece can be measured immediately after the thickness measurement. Each time thickness measurement and hardness detection are performed, these data are sent to the computer so that the clamp contact pressure of the mark tracking arm can be changed, contact mark tracking is performed, and an automatic tensile tester (not shown) is used. Perform a tensile strength test.

[0017]

The test piece tray in the automatic tensile tester of the present invention can be mounted in a pallet-like manner in order so that a plurality of test pieces can be continuously supplied to the tensile tester. By providing the curved protrusion, the curved portion of the test piece in which expansion or contraction of about 10% occurs corresponds to the curved protrusion, the positioning of the test piece is always constant, and the test piece has a pallet shape. It is possible to continue supplying the test piece to the tensile tester without worrying about the piece protruding or forming a gap. In addition, the test piece tray has a space for sticking the bar code label, so even if you suddenly change the type of test piece, you can stick the bar code label according to each test piece each time. The tensile strength test can be continuously performed without stopping the tester.

The test piece supply device in the automatic tensile tester of the present invention supplies the test piece trays one by one by forming the supply groove, and further, the supply case is moved up and down by the monocarrier to move the test case at a predetermined position. By stopping it, continuous supply is possible even if the test piece tray is added / stopped or interrupted. In addition, by providing a sensor for detecting the origin of the test piece tray and a sensor for checking the presence or absence of the test piece tray in each supply groove, it is possible to know where the test piece tray is, and to add / stop the test piece tray. It is easy to interrupt.

The thickness measuring device in the automatic tensile tester of the present invention is such that a thickness measuring hole is provided in the test piece tray so that the tip end of the thickness measuring base in the thickness measuring base passes through them and from the upper surface of the test piece tray. By slightly protruding and applying force from the top to bring it into contact with the top and bottom of the test piece for detection, it is possible to measure the thickness with the test piece placed on the test piece tray. Since it became possible to measure the thickness of the test piece and the problem that the test piece adhered to the thickness gauge or the thickness measurement base due to the contact of the test piece with the thickness gauge and the thickness measurement base during the thickness measurement The problem that the test piece adheres to the thickness gauge or the thickness measurement base by sucking or sending air from the tip when the tip slightly protrudes from the upper surface of the test piece tray and force is applied from above to detect. Solved. The thickness measurement base and thickness gauge are in one set, and different weights are used for thickness measurement and simple hardness detection,
And since it can move to the left and right, thickness measurement can be performed in the parallel part of the test piece that is most important for the tensile strength test, and simple hardness detection is performed in the wide part of the test piece that does not significantly affect the tensile strength test. It has become possible to accurately and efficiently measure the thickness of many test pieces and perform simple hardness detection, and it has become possible to perform simple hardness detection that could not be performed conventionally. Furthermore, from this data, it is possible to adjust the clamp strength by performing contact-type mark tracking so that the clamp contact pressure of the mark tracking arm can be varied, and it is possible to adjust the clamp strength too strong or too weak. It has an effect that a tensile strength test can be accurately performed without causing a trouble.

[Brief description of drawings]

FIG. 1 is a perspective view of a test piece tray of the present invention.

FIG. 2 is a perspective view of a test strip supply device and a thickness measuring device.

FIG. 3 is a front view of the test strip supply device of the embodiment shown in FIG.

FIG. 4 is an enlarged view of a front cross-sectional view of the test strip supply device.

FIG. 5 is a plan sectional view of a test strip supply device.

FIG. 6 is a front view of the thickness measuring apparatus of the embodiment shown in FIG.

FIG. 7 is a side view of the thickness measuring device.

FIG. 8 is a plan view seen from above the thickness measuring device.

[Explanation of symbols]

 1 Specimen 2 Specimen Tray 3 Drawbar 4 Drawout Hole 5 Projection 6 Barcode Label 7 Origin Detection Hole 8 Thickened Hole 9 Hardness Detection Through Hole 10 Specimen Supply Device 11 Monocarrier 12 Supply Case 13 Supply Groove 14 Detection Hole detection photo sensor 15 Tray confirmation photo sensor 16 Confirmation lamp 17 Drawer hand 18 Thickness gauge 19 Thickness gauge base 20 Tip 21 Thickness gauge set cylinder 22 Thickness waist 23 Thickness gauge cylinder 24 Thickness gauge 25 Motor for thickness gauge movement 26 hardness detection weight 27 hardness detection weight cylinder 28 test piece discrimination hole

Claims (15)

[Claims] 1. A test which can be arranged in order so that a plurality of test pieces can be continuously supplied to a tensile tester on a square-shaped test piece tray, and which enables predetermined positioning of the test pieces. A test piece tray, wherein a plurality of sets each having a set of four curved contact portions are provided. 2. The test piece tray according to claim 1, wherein a bar code label in which test condition data is input is attached. 3. The test piece tray according to claim 1 or 2, wherein when the test piece tray is inserted into a supply case of a test piece supply device, it is possible to detect whether or not a mechanical lock has been made at an origin position of the test piece tray. . 4. A thickness-measuring hole is formed at a position facing a parallel portion of the test piece so that the test piece can be measured while being placed on the test piece tray when the thickness is measured. Any of the listed test strip trays. 5. When performing simple hardness detection of a test piece, in order to enable measurement while the test piece is placed on a test piece tray,
The test piece tray according to claim 1, wherein a hardness detecting through hole is formed at a position facing the wide portion of the test piece. 6. A supply case into which test piece trays can be inserted one by one can be moved by operating a monocarrier,
A test strip supply device that can stop at a predetermined position and can supply a test strip tray. 7. The test strip supply device according to claim 6, further comprising a tray confirmation sensor capable of detecting the presence or absence of the test strip tray. 8. The test piece according to claim 6, further comprising a sensor capable of detecting an origin position of the test piece tray when the test piece tray is inserted into the supply case of the test piece supply device. Supply device. 9. The test strip feeding apparatus according to claim 7, wherein the test strip tray can be added / stopped and interrupted to / from the supply case without stopping the operation. 10. A thickness measuring device capable of continuously measuring the thickness of a test piece mounted on a test piece tray supplied from a test piece supply device. 11. The thickness measuring apparatus according to claim 10, wherein a pair of the thickness measuring device and the thickness measuring base are movable and can move to a parallel portion of the test piece. 12. When interlocking with a test piece tray, the tip end of the thickness measuring base is slightly projected from the upper surface of the test piece tray at the time of thickness measurement so as to be between the tip end of the thickness measuring base and the detecting portion of the thickness gauge. The thickness measuring device according to claim 10 or 11, wherein the parallel portion of the test piece is sandwiched between the two and the thickness is measured by applying a force from above the thickness measuring device. 13. The tip of the thickness-measuring base is formed of a porous metal material capable of sucking and ejecting air to prevent the test piece from adhering to the thickness-measuring instrument or the thickness-measuring base. One of the thickness measuring devices. 14. The hardness measuring base is moved to the hardness detecting through hole, and after the thickness is measured, a predetermined force is further applied from above to enable simple hardness detection in the wide portion of the test piece. 13. The thickness measuring device according to any one of 13 above. 15. To measure the elongation between the marked lines of the test piece,
A simple hardness measuring device that can control the contact pressure of the arm clamp of the contact-type tracking device based on the simple hardness data of the test piece.