JP3687910B2 - Sample transfer head for test equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a test apparatus for performing a material test, and more particularly to a test apparatus for a tensile test of a test sample such as a film or thin rubber, and the test sample is securely conveyed to a test sample gripping part that grips the test sample. The present invention relates to a sample transfer head for a test apparatus that can be held and held and then transported and discarded after a test, thereby saving labor and the number of test operations.
[0002]
[Prior art]
Conventionally, when performing a material test, a material test is performed using a test apparatus corresponding to the test content. For the automation of such a material test, the material test is performed fully automatically especially in a line such as quality control. A number of fully automatic test equipments have been introduced, each with a proven track record.
[0003]
This type of fully automatic tester has been developed to process a large amount of the same type of test specimens, so its components are complicated and expensive, and low-cost, multi-species samples are desired. This is undesirable for automated material testing.
[0004]
On the other hand, with the development of new materials, the need for several units of testing is expected to increase, and with this, it is easy to perform automated testing of these relatively small numbers of different test samples. It is desired that the operation can be performed with a simple operation and at a low cost.
[0005]
For example, in a testing device for the purpose of tensile testing of a test sample such as a film or thin rubber, it has been difficult to perform a tensile test by automation conventionally, and an inspection worker performs a testing operation for each testing device to be tested. However, the test operation is also complicated.
[0006]
This type of test apparatus is usually configured to include a test sample gripping part that grips a test sample such as a film or thin rubber. When testing a test sample, an inspection worker holds the test sample gripping part on the test sample gripping part. The gripping process was performed so that the test sample was gripped manually.
[0007]
As described above, the test sample is attached to the test sample gripping portion by hand as described above. For example, two conventional methods described later have been used.
[0008]
One is a method using tweezers. In this method, one end of a test sample is gripped by tweezers, and after positioning with tweezers between the upper gripping portion upper end surfaces of a test sample gripping portion composed of a pair of upper and lower gripping portions. The upper gripping portion is tightened to fix the upper end of the test sample to the upper gripping portion, and the lower end portion of the test sample is lightly pinched with tweezers, and the tweezers is lightly slid to the upper end of the lower gripping portion. The lower gripping part is tightened while holding the straight line, whereby the test sample is chucked (attached) to the upper and lower test sample gripping parts.
[0009]
The other is a method of reinforcing the tab portions on both ends of the test sample using other materials when the test sample is attached to the test sample gripping portion. For example, the upper and lower tab portions of the test sample are reinforced. The posture when gripping a flexible test sample is obtained by pinching or sticking it with paper as a member, and transferring it to the test sample gripping part while gripping such a reinforcing member by hand and gripping it together with the reinforcing member. While being assisted, the test sample is chucked (attached) to the upper and lower test sample gripping portions.
[0010]
After the test is completed, the test sample piece that has been broken is normally discarded by an inspection worker by hand as in the above gripping operation and discarded.
[0011]
[Problems to be solved by the invention]
As described above, when performing a tensile test of a test sample such as a flexible film or rubber in the conventional test apparatus, all of the transfer of the test sample to the upper and lower test sample gripping parts, mounting, and discarding after the test are performed by the inspection worker. For this reason, the test work is complicated and takes a long time, and there is a problem that the efficiency of the test work cannot be improved and the labor and labor of the test work cannot be reduced.
[0012]
In addition, in order to solve such problems, it is desired to automate the above test process work, but no proposal has been made regarding a test apparatus that enables full automation, for example, Assuming that the test apparatus is provided with a transfer head for automatically transferring and gripping a test sample such as a flexible film or rubber to the upper and lower test sample gripping portions of the test apparatus, the test sample is flexible. For this reason, the test sample cannot be transported or gripped by the transport head, and the broken test sample must be removed manually after the test. Can be considered.
[0013]
Therefore, the present invention has been made in view of the above problems, and in the case where a sample transfer head is provided in order to automate all the material tests, the transfer of the test sample to the sample gripping part, the gripping work, and the test are performed. It is an object of the present invention to provide a sample transfer head for a test apparatus that can surely remove a break test sample later and can automate a material test.
[0014]
[Means for Solving the Problems]
  A sample transfer head for a test apparatus according to a first aspect of the present invention includes a gripping portion for holding a material test sample, a sample transfer head for holding and transferring the material test sample to the gripping portion, and the sample transfer A test apparatus for carrying out a material test of a material test sample gripped by the gripping part, comprising a transfer head arm provided at the tip and movably attached to a test apparatus body, wherein the sample transport head Adsorbs the test sample by sucking air through a head body for holding the material test sample and a plurality of suction holes provided in the contact surface of the head body with the material test sample. The first suction means is held through a plurality of suction holes provided at the upper and lower end portions of the contact surface between the first main body and the material test sample of the head body. First suction provided at the upper and lower ends of the contact surface between the second test means for sucking and holding the fractured test sample and the material test sample of the head body by sucking with a suction force larger than the means. And a second air supply port provided on the contact surface side of the upper and lower surfaces of the head main body, while holding the test sample by the first suction means, Posture holding means for holding the postures at both ends of the test sample vertically by simultaneously sending air through the first and second air supply ports when gripping.The first air supply port of the posture holding means is a set of plungers having air supply ports respectively provided at upper and lower ends of a contact surface of the head body with the material test sample, The plunger protrudes from the contact surface when gripping the test sample by the gripping part, and is in the same direction as the air feeding direction by the second air feeding port and at both ends of the test sample at the second air feeding port. It is comprised so that air may be supplied from an air supply port so that front and back may be sprayed.
[0015]
  The sample transfer head for a test apparatus according to a second aspect of the present invention is the sample transfer head for a test apparatus according to the first aspect,The plunger is configured to be housed in the head body when air is not supplied.It is characterized by that.
[0016]
The sample transfer head for a test apparatus according to a third aspect of the present invention is the sample transfer head for a test apparatus according to the first aspect, wherein when the test sample broken by the second adsorption means is adsorbed and held, The test sample that has been broken by driving the transfer head arm is transferred to a collection waste container for disposal.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an embodiment of a sample transfer head for a test apparatus according to the present invention. The system configuration of a test apparatus equipped with the sample transfer head for a test apparatus will be described. FIG. FIG. 1B is a side view of the test apparatus.
[0018]
In the present invention, in order to fully automate the material testing operation of test samples, sample cassettes are prepared according to the respective test sample shapes, the test samples are stored in the sample cassettes, and the stored test samples are stored. It is a sample transfer head for a test apparatus which has a function of transferring to a test apparatus and holding it by a test piece gripping part provided in the apparatus, and performing a work of removing a broken test sample after the test.
[0019]
A system configuration of a test apparatus equipped with such a sample transfer head for a test apparatus and intended for a tensile test of a test sample such as a film or thin rubber will be described with reference to FIG.
[0020]
As shown in FIGS. 1 (a) and 1 (b), a test apparatus employing the test apparatus sample transfer head 10 of the present invention includes a test machine body 1A, a test table 1B, a movable crosshead 2, a load cell 3, Upper and lower automatic gripping chuck portions 4A and 4B, sample head transfer arm portion 5, rotary actuators 6A and 6B, automatic sample cassette take-out device 7, magazine base 7A, magazine 8, mechanical opening mechanism portion 9, sample transfer for test device The head 10 and the sample cassette 11 are mainly configured.
[0021]
Although not shown, the personal computer controls the various operations of the test apparatus and performs the data processing and display processing of the inspection data obtained by the test apparatus, the operation state of the inspection data and the test apparatus, and the like. The system is configured by providing a display unit such as a monitor for displaying the image and a printer for printing out the obtained detection data.
[0022]
The test stand 1B is provided with the test machine main body 1A including the above components and an automatic sample cassette take-out device 7. The tester main body 1 </ b> A is a frame member that is disposed oppositely on the test bench 1 </ b> B, and the movable crosshead 2 is disposed on the upper part. An end portion of the screw rod having a male screw portion that fits with the female screw included in the movable crosshead 2 is fixed to the tester main body, and the screw rod end portion is rotated to rotate in the vertical direction of the testing machine 1B. And can be moved freely. That is, during the tensile test, the movable crosshead 2 is controlled to move upward in the vertical direction by a drive control unit (not shown), whereby the tensile test of the material sample chucked (set) between the automatic gripping chuck units 4A and 4B. Will be executed.
[0023]
An upper automatic gripping chuck portion 4A having a rotary actuator 6A disposed at the lower portion is fixed to the load cell 3, and the load cell 3 is fixed to the center of the movable crosshead 2. The load cell 3 detects a test load when the tensile test is executed, and transmits the detected load to a control unit (not shown).
[0024]
The upper automatic gripping chuck portion 4A arranged at the lower portion of the load cell 3 is a test set in the sample cassette 11 (see FIG. 1A) with the lower automatic gripping chuck portion 4B fixed to the test table 1B. This is the main part for automatically grasping both ends of the sample 12 and conducting a tensile test.
[0025]
Further, although not shown, the upper and lower automatic gripping chuck portions 4A and 4B are respectively provided with removing means and rotary actuators 6A and 6B for removing test sample pieces remaining on the gripping surfaces of the chuck portions. The removal means can be rotated by a rotary actuator to remove a sample remaining on the gripping surface of each chuck portion.
[0026]
In the present embodiment, the rotary actuators 6A and 6B are specifically configured using a fracture sample collecting electric motor, but the invention is not limited to this, and other than the fracture sample collecting electric motor. You may comprise using the rotational drive means by which rotational drive is performed by air type, hydraulic type, etc. of this.
[0027]
Further, the test sample in the sample cassette 11 taken out by the automatic sample cassette take-out device 7 is conveyed to the side of the lower automatic gripping chuck portion 4B while being sucked, and the upper and lower automatic gripping chuck portions 4A and 4B are transported. A sample head transfer arm 5 provided with the sample transfer head 10 for a test apparatus of the present embodiment for chucking (setting) each of the gripping portions is provided.
[0028]
The sample head transfer arm 5 is rotatably mounted on the main body of the test table 1B, and the test sample head 10 for adsorbing the test sample is transferred to the sample cassette 11 on the magazine table 7A and each automatic gripping chuck. It can freely rotate between the positions of the gripping portions of the portions 4A and 4B. The driving of the sample head transfer arm 5 is also controlled by a control unit 40 (see FIG. 3) that controls various types of driving of the automatic gripping chuck units 4A and 4B, the load cell 3, the moving cross head 2, and the like. Yes.
[0029]
The test table 1B on which the test machine (test machine main body 1A) having the above-described configuration is installed has a single sample cassette appropriately placed in the rotational position of the sample head transfer arm 5 (sample transfer) in order to enable automation of the test. The automatic sample cassette take-out device 7 which can be automatically set up to the position, see FIG. 1 (a)) is arranged.
[0030]
As shown in FIGS. 1 (a) and 1 (b), the automatic sample cassette take-out device 7 is arranged at a predetermined location on the test table 1B, and the configuration has an upper surface 7b on which the sample cassette 11 can be slid. A casing 7B, a magazine base 7A installed on the upper surface of the casing 7B, and a magazine 8 which is installed on the magazine base 7A and can accommodate a plurality of sample cassettes 11 containing test samples stacked vertically. A moving actuator 15 and a support member 17 installed on the back side of the magazine base 7A of the housing 7B, and a cassette push-out attached to the support member 17 and slidable horizontally on the upper surface 7b of the housing 7B. The bar 53 (see FIG. 3) and the magazine cassette 7A are mounted in the magazine base 7A. A mechanical automatic opening mechanism 9 is, in is mainly composed.
[0031]
A casing 7B constituting the automatic sample cassette take-out device 7 is installed on the test table 1B at an arrangement position as shown in FIG. A pair of guide plates 1c for guiding the conveyance of the sample cassette 11 is arranged on the upper surface 7b of the housing 7B (see FIG. 1B).
[0032]
Further, as shown in FIG. 3, a movement actuator 55 and a support member 57 are provided in the housing 7B of the automatic sample cassette take-out device 7 in accordance with the arrangement position of the magazine base 7A.
[0033]
The moving actuator 15 is mounted with a support member 57 movably mounted in the horizontal direction in FIG. 3 by drive control by the control unit 40 (see FIG. 3). Then, the cassette push-out bar 53 is slid on the upper surface 7b of the housing 7B. The support member 57 is provided so as to be freely inserted into the movement actuator 55 and moves horizontally in conjunction with a drive mechanism unit (not shown).
[0034]
Further, a right limit switch 56 a and a left limit switch 56 b for executing a slide operation of the cassette push-out bar 53 are provided at the lower portions on both sides of the moving actuator 55.
[0035]
For example, when discharging the sample cassette 11 from the magazine 8, by turning on the left limit switch 56 b of the movement actuator 55, the tip of the support member 57 is moved into the movement actuator 55. Withdrawing to reach the left limit position, the cassette push-out bar 53 slides to a position (see FIG. 1A) for pushing out the sample cassette 11. On the other hand, in the case of setting for taking out the next sample cassette 11 from this state, by turning on the left limit switch 56a of the moving actuator 55, the support member 57 drawn into the moving actuator 55 is removed. The front end (not shown) is pushed out so as to reach the right limit position in the moving actuator 55, and the cassette push-out bar 53 slides to the set position of the sample cassette 11. In this way, the cassette pushing bar 53 is slid and driven by the moving actuator 55. In addition, as a driving method of the moving actuator 55, a method in which the support member 57 is driven to extend and contract by an air compression action is employed.
[0036]
As shown in FIG. 3, the cassette push-out bar 53 is formed in an L shape, and the bent portion contacts the fixing portion 53B fixed to the tip of the support member 57 and the upper surface 7b of the housing 7B. On the other hand, it is provided at the front end of the surface that slides through the inside of the magazine base 7A, and has an engaging portion 53A for abutting and pushing out the end of the sample cassette 11 at its base end surface.
[0037]
The magazine base 7A accommodated in the cassette pushing bar 53 is provided with a mechanical automatic opening mechanism 9. That is, since the mechanical automatic opening mechanism 9 is provided on the magazine base 7A, a stopper (not shown) provided at the lower part of the magazine 8 is released when the magazine 8 is mounted on the magazine base 7A. Thus, the lowermost sample cassette 11 accommodated in the magazine 8 can be taken out. If the stopper is not released, it engages with a part of the bottom surface of the lowermost sample cassette 11 accommodated in the magazine, so that the discharge opening provided on the bottom surface side of the magazine 8 is engaged. I try not to fall.
[0038]
In the present embodiment, in the case of a thin film or an adhesive material that is difficult to take out one by one when stacking the test samples in the vertical direction, the samples are stored one by one in the sample cassette 11 so that the test samples do not adhere to each other, The plurality of sample cassettes 11 are accommodated in the magazine 8.
[0039]
The side surface of the magazine 8 is provided with an opening for visually confirming the plurality of sample cassettes 11 accommodated therein, and the end of the sample cassette 11 is not shown in the center of one side surface, although not shown. A protrusion-shaped guide portion that fits into a notch (not shown) is provided from the upper part to the lower part. Thereby, the sample cassette 11 can be easily and reliably accommodated in the magazine 8 by the guide portion (not shown), and a plurality of sample cassettes 11 can be correctly stacked.
[0040]
Further, the sample cassette 11 used in the present embodiment forms a receiving groove by performing groove processing in accordance with the sample shape on the plane of a plate-like member having a constant thickness (not shown). The test sample 12 is accommodated in the accommodation groove.
[0041]
As described above, by using the sample cassette 11 and the automatic sample cassette take-out device 7 having such a configuration, the sample cassettes 11 are automatically taken out one by one from the magazine 8 and the sample head on the upper surface 7b of the housing 7B. The transfer arm 5 can be transferred to a rotation position (adsorption position by the sample transfer head 10 for a test apparatus: see FIG. 1A).
[0042]
By the way, in this embodiment, the test sample 12 is reliably transferred from the sample cassette 11 transferred by the automatic sample cassette take-out device 7 to the upper and lower automatic gripping chuck portions 4A and 4B by the sample transfer head 10 for the test device. The test apparatus sample transfer head 10 itself has been improved so that the fracture test sample can be reliably removed after the test.
[0043]
The configuration of the sample transfer head 10 for the test apparatus, which is a feature of the present embodiment, will be described in detail with reference to FIG.
[0044]
FIG. 2 illustrates the configuration of the test apparatus sample transfer head mounted on the test apparatus of FIG. 1, and FIG. 2 (a) is a partially broken view of the test apparatus sample transfer head with the test sample adsorbed thereon. FIG. 2B is a front view of the sample transfer head for the test apparatus in a state where the test sample is adsorbed.
[0045]
The test apparatus sample transfer head 10 of the present embodiment is fixed to the tip of the sample head transfer arm 5 (see FIG. 1) as described above, and the configuration thereof is shown in FIGS. 2 (a) and 2 (b). As shown in FIG. 2, the main body is mainly composed of a transfer head main body 13, a sample transfer head mounting rod 14 and a mounting base 15 for fixing the transfer head main body 13 to the sample head transfer arm 5.
[0046]
The sample transfer head mounting rod 14 is composed of a pair of upper and lower support members, and one end side is fitted and fixed to the transfer head main body 13 so as to be slightly movable, and the other end side is fixed by a screw of the mounting base 15 or the like. It has become so. A mounting portion 15a is disposed on the outer surface of the mounting base 15, and is fixed to the tip of the sample transfer head arm 5 shown in FIG. 1 via the mounting portion 15a.
[0047]
The sample transfer head mounting rod 14 is attached to the transfer head main body 13 so as to be somewhat movable as described above, and each sample transfer head mounting rod 14 is fitted with a spring 14a. It is provided as follows. That is, due to the biasing force of the spring 14a, the sample head transfer arm 5 when the test sample 12 is adsorbed from the sample cassette 11, when it is gripped by the upper and lower automatic gripping chuck portions 4A and 4B, or when the broken test sample is removed. The contact state of the transfer head main body 13 with respect to the test sample 12 accompanying the rotation of the test head 12 can be eased to protect the test sample 12.
[0048]
The transfer head main body 13 sucks the test sample 12 accommodated in the sample cassette 11 and transfers it between the upper and lower automatic gripping chuck portions 4A and 4B, and correctly assists the posture of the test sample 12 when gripping, After the test, a contrivance is made to forcibly remove the broken test sample 12 and store it in a not-shown broken test piece storage box.
[0049]
Specifically, as shown in FIG. 2, the transfer head main body 13 is constituted by a square member having an optimum size for adsorbing and holding the test sample 12, and a suction conduit 17 is vertically disposed therein. In the direction.
[0050]
Further, on the back surface side of the transfer head main body 13, there are an upper air blowing inlet 19, a lower air blowing inlet 20 that communicates with the surface of the transfer head main body 13, a broken sample adsorption air suction port 16 A, and the suction conduit 17. An air suction port 16 for holding and holding the sample adsorbing is provided.
[0051]
These inlets and mouths are connector means for connecting to pipes for sucking or sending air, and the corresponding pipes are connected to each other. A detailed air piping path will be described later.
[0052]
As shown in FIG. 2A, the upper plunger 21 is attached to the upper air outlet 19 so as to protrude and move in the surface side direction (the suction surface side direction) through the hole 26 on the surface of the transfer head body 13. The upper air outlet 19 and the upper outlet 21a of the upper plunger 21 communicate with each other.
[0053]
A plunger return spring 23 is provided on the outer periphery of the upper plunger 21, and the plunger return spring 23 biases the upper plunger 21 toward the inside of the transfer head main body 13. That is, when air is blown out, the upper plunger 21 projects with a predetermined dimension in the surface side direction of the transfer head main body 13 by the air blow pressure, and air is transferred from the upper blowout port 21a (see FIG. 4B). When the air is not blown out, on the other hand, the upper plunger 21 is housed inside the transfer head body 13 by the urging force of the plunger return spring 23 (see FIG. 4A). ).
[0054]
Two sets of the upper air outlet 19 and the upper plunger 21 having the above-described configuration are provided on the upper part of the transfer head main body 13 so as to face each other.
[0055]
On the other hand, at the lower part of the transfer head body 13, two sets of lower air outlets 20 and lower plungers 22 having the same configuration as described above are provided so as to be opposed to each other at the lower part of the transfer head body 13.
[0056]
That is, as shown in FIG. 2A, the lower plunger 22 can be projected and moved in the surface side direction (attraction surface side direction) through the hole 27 on the surface of the transfer head body 13 at the lower air outlet 20. The lower air outlet 20 and the lower outlet 22a of the lower plunger 22 communicate with each other. In this case, the lower outlet 22 a is provided toward the lower portion of the transfer head body 13 of the lower plunger 22.
[0057]
That is, when air is blown out, the lower plunger 22 projects with a predetermined dimension in the surface side direction of the transfer head body 13 by this air blowing pressure, and blows air from the lower outlet 22a toward the lower part of the transfer head body 13, while When the air is not blown out, the lower plunger 22 is accommodated inside the transfer head main body 13 by the urging force of the plunger return spring 23 (see FIG. 4A).
[0058]
Further, a pair of upper air outlets 24 communicating with the upper plunger 21 are provided at the front surface side end of the upper surface of the transfer head body 13 so as to face each other. That is, these upper air outlets 24 are configured to blow air toward the upper portion of the transfer head body 13 at the same time when the upper plunger 21 blows out air.
[0059]
Similarly, a pair of lower air outlets 25 communicating with the lower plunger 22 are also provided on the front side end of the lower surface (bottom surface) of the transfer head body 13 so as to face each other. That is, these lower air outlets 25 simultaneously blow out air toward the lower part of the transfer head body 13 when the lower plunger 22 blows out air. In addition, as an auxiliary means or substitute for the plunger return springs 23, 24, a plunger suction solenoid valve 36f (see FIG. 3) is provided, and the upper and lower air outlets 19 on the second vacuum generator 38b and the sample transfer head 10 are provided. By conducting and controlling 20, it is possible to perform the plunger return operation more reliably.
[0060]
The suction holding suction port 16 communicates with a plurality of sample suction holes 18 provided in the vertical direction on the surface side of the transfer head body 13 via suction conduits 17, and sucks air through the sample suction holes 18. By doing so, the central portion 12c of the test sample 12 can be adsorbed and held. As shown in FIG. 2B, these sample suction holes 18 are provided on the surface of the transfer head body 13 at a predetermined interval, and the predetermined interval dimension and the number of installed holes are not limited.
[0061]
The broken sample suction air suction port 16A is provided on the upper and lower ends of the transfer head main body 13 through a suction conduit (not shown) separate from the suction conduit 17, respectively. 28 and the lower fracture sample suction port 29. After the test, each test sample fractured by sucking air through the fracture sample suction ports 28 and 29 more strongly than at the time of sample adsorption. The pieces (sample upper tab portion 12a, sample lower tab portion 12b) are adsorbed.
[0062]
Since the shape of the test sample 12 is made of a material such as a flexible film or rubber, for example, the sample upper tab portion 12a and the sample lower tab portion 12b having a wide upper and lower base end side as shown in FIG. In addition, a narrow gap is formed between them, and a shape having a parallel portion 12c which is a main portion in the test is used.
[0063]
Therefore, the sample transfer head 10 for a test apparatus according to the present embodiment is suitable for adsorbing and holding the test sample 12 having such a shape and reliably performing the posture assistance at the time of gripping or the attraction at the time of removal after being broken. That is, when the test sample 12 is sucked and held, the parallel portion 12c of the test sample 12 is reliably sucked and held by air suction through the plurality of sample suction holes 18, and the upper and lower automatic gripping chuck portions 4A, 4A, 4B, at the same time as guiding the posture so that the sample upper tab portion 12a of the test sample 12 is straight in the vertical direction by the air blowing by the upper blowing port 21a and the upper air blowing port 24 of the upper plunger 21, The lower tab portion of the sample is formed by air blowing from the lower air outlet 22a and the lower air outlet 25 of the lower plunger 22. 2b is by directing the orientation such that the straight vertical, can be gripped reliably vertical automatic holding chuck portion 4A, the 4B. In addition, after the test, the sample suction holes 18 can be sucked slightly stronger, and the fractured sample pieces (sample upper tab portion 12a, sample are broken by air suction by the lower fracture sample suction ports 28 and 29, respectively. The lower tab portion 12b) can be reliably adsorbed and transferred.
[0064]
Next, the air piping configuration of the entire test system including the test apparatus sample transfer head having the above configuration will be described in detail with reference to FIG.
[0065]
FIG. 3 is a block diagram showing the air piping configuration of the entire test system including the sample transfer head for the test apparatus of the present embodiment. It is assumed that the blocks related to air are connected by a predetermined pipe.
[0066]
The test system includes an air source 30 for generating air to drive various operations. The air generated by the air source 30 is filled in an air tank 31 and supplied to a regulator 32. Is done.
[0067]
The air having a predetermined pressure output from the regulator 32 is supplied to the electromagnetic valve 36, the regulator 34, and the vacuum generator 38.
[0068]
The regulators 32 and 34 convert the pressure of the supplied air into a predetermined pressure and output it. The output pressure is constantly checked by the inspection worker by the pressure gauges 33 and 35 provided at the respective output ends. You can check it.
[0069]
The output air of the regulator 34 is supplied to the electromagnetic valve 37. The electromagnetic valve 37 is composed of an electromagnetic valve having a lower chuck portion 37a and an upper chuck portion 37b, and a control unit 40 that controls the entire test system controls the electromagnetic valves of the lower chuck portion 37a and the upper chuck portion 37b. ON / OFF is controlled. That is, the upper chuck portion 37b communicates with the upper automatic gripping chuck portion 4A. When the upper chuck portion 37b is turned on, air is supplied to close the upper automatic gripping chuck portion 4A, and when the upper chuck portion 37b is turned off, the upper chuck portion 37b is opened. Similarly, the lower chuck portion 37a communicates with the lower automatic gripping chuck portion 4B. When the lower chuck portion 37a is turned on, air is supplied to close the lower automatic gripping chuck portion 4B, and when the lower chuck portion 37a is turned off, the lower chuck portion 37a is opened.
[0070]
The vacuum generation unit 38 includes a first vacuum generation unit 38a and a second vacuum generation unit 38b. The first vacuum generator 38a is connected to the sample suction / holding air suction port 16 of the transfer head main body 13, and is evacuated based on the output air from the regulator 32 to generate a suction force of a predetermined pressure. I do. The second vacuum generator 38b is connected to the broken sample suction air suction port 16A of the transfer head main body 13, and is brought into a vacuum state based on the output air from the regulator 32. From the first vacuum generator 38a, Also generate a large suction force to perform suction.
[0071]
The drive control of the first and second vacuum generators 38a and 38b is controlled by the controller 40.
[0072]
The electromagnetic valve 36 is configured to include each of the electromagnetic valves of the swivel part 36a, the front and rear part 36b, the magazine part 36c, the first exhaust part 36d, and the second exhaust part 36e, and these electromagnetic valves are controlled by the control part 40. On / off control is performed.
[0073]
The swivel part 36a and the front / rear part 36b are connected to a sample transfer device 39 that controls the driving of the sample head transfer arm 5. Specifically, the swivel part 36a is connected to the swiveling means 39b of the sample transfer device 39 and the front / rear part 36b. Are connected to the front and rear means 39a of the sample transfer device 39, respectively. That is, when the turning portion 36a is turned on, air is supplied and the turning means 39a is driven to turn the sample head transfer arm 5, while when turned off, the turning is performed reversely. Further, when the front / rear portion 36b is turned on, air is supplied to drive the front / rear means 39b to pre-drive the sample head transfer arm 5, and when it is turned off, the rear drive is performed. In this manner, the sample head transfer arm 5 can be appropriately moved to an optimal position by the drive control by the sample transfer device 39.
[0074]
The magazine portion 36c is connected to the moving actuator 15 of the automatic sample cassette take-out device 7. When the magazine portion 36c is turned on, air is supplied to drive the moving actuator 15, and when the magazine portion 36c is turned off, the driving is stopped. The driving of the moving actuator 15 is as described above.
[0075]
The first exhaust part 36 d is connected to the upper air blowing inlet 19 of the transfer head main body 13 and is turned on to supply output air from the regulator 32 to supply air through the upper plunger 21 and the upper blowing outlet 24. On the other hand, the air supply is stopped by turning off.
[0076]
The second exhaust part 36e is connected to the lower air blowing inlet 20 of the transfer head body 13 and is turned on to supply the output air from the regulator 32 and supply air via the lower plunger 22 and the lower blowing opening 25. On the other hand, the air supply is stopped by turning off.
Next, operations that characterize the sample transfer head for a test apparatus of the present embodiment will be described in detail with reference to FIG.
[0077]
FIG. 4 is an explanatory diagram for explaining the operation of the sample transfer head for the test apparatus. FIG. 4 (a) shows the moving head body in the state where the blow-off suction is off, and FIG. 4 (b) shows the blow-off suction on. The movable head main body in the state is shown.
[0078]
Now, it is assumed that the sample cassette 11 accommodated in the magazine 8 is taken out using the automatic sample cassette take-out device 7 and supplied to the tester main body. In this case, one sample cassette 11 is pushed out by the sample cassette discharge port provided in the magazine base 7A by the slide operation by the cassette push-out bar 13 of the automatic sample cassette take-out device 7, and the sample transfer position shown in FIG. Will be placed.
[0079]
Thereafter, the control unit 40 controls the on / off of the swivel part 36a and the front / rear part 36b of the electromagnetic valve 36 to control the driving of the sample transfer device 39, whereby the 90-degree swivel front / rear drive shown in FIG. While rotating the possible sample head transfer arm 5, the test sample 12 of the sample cassette 11 in which the sample transfer head 10 for the test apparatus attached to the tip of the sample head transfer arm 5 is arranged in the shape of the upper surface 7b of the housing 7B. Press against.
[0080]
Then, the control unit 40 turns on the first vacuum generation unit 38a to evacuate the air in the suction conduit 17 through the sample suction / holding air suction port 16 of the transfer head body 13, and the sample suction hole The test sample 12 is sucked and held by 18, and the sample head transfer arm 5 is turned by the drive control of the sample moving device 39 to be transferred in the direction of the upper and lower automatic gripping chuck portions 4 </ b> A and 4 </ b> B.
[0081]
When the test apparatus sample transfer head 10 reaches the upper and lower automatic gripping chuck portions 4A and 4B, the control unit 40 turns on the first and second exhaust portions 36d and 36e of the electromagnetic valve 36, respectively. Output air from the regulator 32 is supplied through the upper and lower air outlets 19 and 20, and the upper and lower plungers 21 and 22 are both opposed to the biasing force of the plunger return spring 23 on the surface side of the transfer head body 13 by the air pressure. The air is blown out through the upper and lower outlets 21a and 22a. At the same time, air with the same blowing pressure is blown out from the upper and lower air blowing ports 24 and 25.
[0082]
As a result, as shown in FIG. 4B, the posture is controlled so that the sample upper tab portion 12a of the test sample 12 is straight in the vertical direction, and at the same time, the sample lower tab portion 12b is straight in the vertical direction. The posture is controlled so that
[0083]
While ensuring this state, the control unit 40 turns on the lower chuck portion 37a and the upper chuck portion 37b of the electromagnetic valve 37, thereby closing the upper and lower automatic gripping chuck portions 4A and 4B, and both ends of the test sample 12. The tab portions 12a and 12b are gripped and set.
[0084]
Thus, even when the test sample 12 is made of a material such as a flexible film or rubber, the test sample 12 is reliably gripped by the upper and lower automatic gripping chuck portions 4A and 4B.
[0085]
After the setting, the control unit 40 turns off the first and second exhaust parts 36d and 36e of the electromagnetic valve 36 to stop the blowing operation, so that the upper and lower plungers 21 and 22 are moved back to the plunger return spring 23. Is accommodated inside the transfer head main body 13 by the urging force (see FIG. 4A).
[0086]
After the tensile test, the control unit 40 controls the sample transfer device 39 in the same manner as described above to drive the sample head transfer arm to place the test device sample transfer head 10 at the same position as in the setting. By turning on the vacuum generating part 38b, the air inside the other suction conduit is evacuated through the broken sample suction air suction port 16A of the transfer head body 13, and the breakage is caused by the upper and lower fracture sample suction ports 28 and 29. The two tab portions 12a and 12b of the test sample are adsorbed, and the sample head transfer arm 5 is swung and transferred to a broken sample container (not shown). Is stopped, both tab portions 12a and 12b of the broken test sample 12 are dropped and accommodated in the broken sample container.
[0087]
Since the suction by the vertically broken sample suction holes 28 and 29 has a larger suction force than the suction by the sample suction hole 18 by the second vacuum generation part 38b, the upper and lower automatic gripping chuck parts 4A and 4B Even when the broken sample upper tab portion 12a and sample lower tab portion 12b adhere to each gripping surface, they can be reliably sucked and held.
[0088]
Therefore, according to the present embodiment, a material that does not have rigidity in a tensile test for measuring the physical properties of the material and cannot be self-supported, and the upper and lower and lower parts are automatically gripped while holding the test sample lightly so as not to overload the test sample. When transferring and gripping to the chuck portion, it is possible to save labor by applying a sample transfer head for a test apparatus, so that labor and automation of test work can be achieved.
[0089]
In addition, because the standard test sample is defined in the standard and the sample transfer head was manufactured to match it, it may be necessary to replace it if the shape is significantly different, but it is easy to attach to the sample head transfer arm with the mounting rod Therefore, it is possible to cope with automation of a small amount of test samples by exchanging the sample head transfer head.
[0090]
In addition, all the operations such as holding, transferring, holding and gripping are performed mechanically by the sample transfer head, sample transfer arm, upper and lower automatic gripping chucks simply by placing the test sample at the pick-up position of the sample transfer head for the test apparatus. Therefore, the test time is shortened and the gripping position is constant, so that the test data is stabilized.
[0091]
In addition, the sample transfer head for test equipment is provided with a strong suction port separately from the transfer port for discarding the broken sample after the test, and the upper and lower broken sample is strongly adsorbed and held and discarded at a place different from the pickup position. There is an effect that a separate apparatus is not required.
[0092]
The present invention is not limited to the above-described embodiment, and the present invention is also applicable to a case where each component is improved or combined.
[0093]
【The invention's effect】
As described above, according to the present invention, when a sample transfer head is provided in order to automate all the material tests, the transfer of the test sample to the sample gripping part, the gripping work, and the fracture test after the test are performed. It is possible to provide a sample transfer head for a test apparatus that can reliably remove a sample and can automate a material test.
[Brief description of the drawings]
FIG. 1 is a configuration diagram illustrating an embodiment of a sample transfer head for a test apparatus according to the present invention and illustrating the system configuration of all test apparatuses equipped with the apparatus.
FIG. 2 is a configuration diagram showing an overall configuration of a sample transfer head for a test apparatus according to the present embodiment.
FIG. 3 is a configuration diagram showing an air piping configuration used in the apparatus of the present embodiment.
FIG. 4 is a perspective view for explaining an aspirating / blowing operation of a sample transfer head main body for a test apparatus.
[Explanation of symbols]
1 ... Test equipment,
1A ... testing machine body,
1B ... test stand,
1c: guide plate,
2 ... Moving crosshead,
3 ... load cell,
4A ... Upper automatic grip chuck,
4B ... Lower automatic gripping chuck part,
5 ... Sample head transfer arm,
6A, 6B ... Rotary actuator,
7 ... Automatic sample cassette removal device,
7A ... Magazine stand,
7B ... Case,
7b ... Upper surface (conveying surface),
8 ... Magazine,
9 ... Mechanical automatic opening mechanism,
10 ... Sample transfer head for test apparatus,
11 ... Sample cassette,
12 ... test sample,
12a ... Sample upper tab part,
12b ... Sample lower tab part,
12c ... parallel part,
13 ... Main body of the transfer head,
14 ... Sample transfer head mounting rod,
14a ... Spring,
15 ... Mounting base,
16 ... Air suction port for holding the sample
16A ... Air suction port for absorbing broken sample,
17 ... suction conduit,
18 ... Sample suction hole,
19 ... Upper air outlet,
20 ... Lower air outlet,
21 ... Upper plunger,
21a ... upper outlet,
22 ... Lower plunger,
22a ... Lower outlet,
23 ... Plunger return spring,
24 ... Upper air outlet,
25. Lower air outlet,
26, 27 ... holes,
28 ... Upper broken sample suction port,
29 ... Bottom fracture sample suction port,
30 ... Air source,
32, 34 ... regulator,
36, 37 solenoid valve,
38 ... vacuum generation part,
39 ... Sample transfer device,
40: Control unit.

Claims (3)

A gripping part for gripping the material test sample, a sample transfer head for holding and transporting the material test sample to the gripping part, and the sample transporting head are provided at the tip and are drivably attached to the test apparatus main body. A test apparatus for performing a material test of a material test sample gripped by the gripping portion,
The sample transfer head comprises:
A head body for holding the material test sample;
First suction means for sucking and holding the test sample by sucking air through a plurality of suction holes provided on a contact surface of the head body with the material test sample;
The broken test sample is sucked by sucking with a suction force larger than that of the first suction means through a plurality of suction holes provided on the upper and lower ends of the contact surface of the head body with the material test sample. A second suction means for holding;
A first air supply port provided at the upper and lower ends of the contact surface of the head body with the material test sample, and a second air supply port provided at the contact surface side of the upper and lower surfaces of the head body, respectively. When holding the test sample while holding the test sample by the first suction means, the air is simultaneously supplied through the first and second air supply ports, Posture holding means for vertically holding the postures at both ends of the test sample, and the first air supply port of the posture holding means is in contact with the material test sample of the head body. A pair of plungers having air supply ports respectively provided at the upper and lower end portions of the surface, the plungers projecting from the contact surface when the test sample is gripped by the gripping portion. The same direction as the air supply direction and It said second air inlet and the test sample both ends testing device for sample transfer head that is characterized in being configured to air from the front and back surfaces of the blow against like air supply port of the. The sample transfer head for a test apparatus according to claim 1, wherein the plunger is configured to be housed in the head body when air is not supplied .   2. When the test sample broken by the second suction means is sucked and held, it is transferred to a collection waste container for discarding the test sample broken by driving the transfer head arm. 2. A sample transfer head for a test apparatus according to 1.

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