JPH0669813U - Material test piece Material test equipment for continuum - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To provide a new material testing device for carrying out material testing using a continuous body of material test pieces. (Structure) Material Continuum gripping mechanism for gripping a continuum of test pieces, and intermittent feed mechanism for intermittently feeding this gripping mechanism for continuum of test strips by the pitch of the test strips of the continuum of test strips It has a cutter for cutting the four-circumferential frame portion between the test pieces of the body, and a pair of chucks for holding the grip portion of the test piece separated by the cutter and displacing at least some of the displacement to pull the test piece.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a material testing device for a material test strip continuum in which a plurality of test strips are continuously and integrally formed.

[0002]

[Prior art]

 As shown in Fig. 4, a conventional material test piece is composed of a small piece that has grips 1 and 1 at both ends and a constriction 2 in the middle, and a material testing device is also composed of this small piece. It was configured to grip the grips 1, 1 of the pieces to perform a pull test.

[0003]

[Problems to be solved by the device]

 Since the previously known material testing apparatus is designed to grip a test piece consisting of a small piece as described above, the supply mechanism for automatically supplying the test piece consisting of a small piece to the grip portion of the test apparatus is complicated. However, there is a problem in that it is difficult to securely and reliably supply and securely grip a test piece consisting of small pieces.

The inventor has developed and proposed at the same time a material test piece continuum 10 shown in FIG. 3 for the purpose of solving the problems of the test piece composed of the small piece. The material test piece continuous body 10 has a plurality of punched holes 15 so that a plurality of single shape test pieces are arranged side by side, and is integrally formed by a four-sided frame portion 14 into a sheet shape, a film shape, or a plate shape. It has a rectangular shape. Each of the plurality of test pieces formed between the plurality of holes 15 has the gripping portions 11, 11 and the narrowed portion 12 therebetween.

It is an object of the present invention to provide a novel material testing device for carrying out a material test using this material test strip continuum.

[0006]

[Means for Solving the Problems]

 The device of the present invention made for this purpose includes a test piece continuum gripping mechanism for gripping a material test piece continuum, and a test piece intermittent feed mechanism for intermittently feeding the test piece continuum gripping mechanism by the pitch of the test piece of the test piece continuum. Hold the feeding mechanism and the cutter that cuts the four-sided frame between the test pieces of the test piece continuum, and the grips of the test pieces separated by the cutter, and displace at least some gap to pull the test pieces. It is characterized by having a pair of chucks.

[0007]

[Action]

 The material test piece continuum is gripped at its upper portion by the test piece continuum gripping mechanism, and the material test piece continuum is intermittently fed by the intermittent feeding mechanism by the pitch of the single test piece. At the stop position of the intermittent feed movement of the material test piece continuum, the grips at both ends of the test piece are gripped by the pair of chucks. In order to separate the test piece gripped by the pair of chucks from the test piece adjacent thereto, the cutter is operated to cut the four-sided frame portion between the test pieces adjacent to each other. After that, some of the chucks are displaced and the chucked test piece is pulled to perform the test. When the test of this test piece is completed, the inter-test piece feed mechanism is activated to feed the adjacent test piece to a pair of chuck positions, chuck it, and use a cutter to move it between the adjacent test piece. Cut and repeat the test.

[0008]

【Example】

 1 and 2 show the device of the present invention, in which 20 and 21 are fixed parts provided on a mount (not shown). The upper and lower immovable parts 20 and 21 are attached to the pair of lower and upper chucks 23 and 23, which are similar to those used in a well-known tensile tester, and have at least one or both of these chucks. Are displaced from each other and the material test piece is subjected to a tensile test.

In the figure, reference numeral 24 denotes a test piece continuum gripping mechanism, which has a plurality of gripping portions 25, 25 for gripping the four-circumferential frame portion 14 above the test strip continuum 10. The gripping portions 25 are air cylinders 26, 26. The test strip continuous body 10 can be held by the above. The test piece continuum gripping mechanism 24 is supported by the test piece intermittent feeding mechanism 27 so that it is intermittently fed and operated. Therefore, the test strip continuum gripping mechanism 24 has support strips 28, 28 on its upper portion, is supported and guided by the horizontal guide 29 of the inter-test strip intermittent feed mechanism 27, and is screwed into the horizontal feed screw 30.

The inter-test-piece intermittent feed mechanism 27 has the horizontal guide and the horizontal screw 30 supported by a support member 31 fixed to the immovable portion 21 at the upper part, and a motor 32 for rotationally driving the horizontal feed screw 30. Have.

The support member 31 fixed to the above-mentioned immovable portion 21 has a pair of vertical guides 33 hanging vertically downward and a vertical feed screw 34, and a motor board 36 is provided at the lower end of the vertical guides 33. It is fixed and has a guide member 35 for guiding the lower four-circumferential frame portion 14 of the test strip continuum 10 and a motor 37 for rotationally driving the vertical feed screw 34.

Reference numeral 38 in the drawing denotes a cutter for cutting the four-sided frame portion 14 of the test piece continuum 10, which is guided by the vertical guide 33 and is supported by a cutter support plate 39 which is vertically screwed by being screwed into the vertical feed screw. The air cylinder 40 allows it to move in and out, and the four-circumferential frame portion 14 of the test piece continuous body 10 is cut at the protruding position.

In FIG. 1, the test strip continuum gripping mechanism 24 grips the test strip continuum 10, and the gripping portion 11 of the test strip at the left end of the test strip continuum 10 is chucked by the upper and lower chucks 22, 23. The state is shown. In the illustrated example, the four-sided frame portion 14 at the left end of the test piece continuum 10 is cut, but in this state, it may not be particularly cut. While the left end test piece is chucked, the motor 37 is operated to rotate the vertical feed screw 24 to vertically move the cutter support plate 39 and the cutter 38, and the air cylinder 40 is operated to project the cutter 38. Then, the test piece chucked by the upper and lower chucks 22 and 23 and the adjacent test piece are cut. Then, the upper and lower chucks 22 and 23 are displaced, and the test piece is subjected to a tensile test. Thus, when this pulling test is completed, the chuck abandons the test piece and operates the motor 32 of the inter-test piece intermittent feed mechanism 27 to rotate the horizontal feed screw 30 to move the test piece continuum holding mechanism 24 to the next position in the figure. The test piece is intermittently fed until it faces the chucks 22 and 23, and the chucks 22 and 23 operate at the fed position to chuck. Along with this, the cutter moves up and down in the same manner as described above to cut between the next test piece and the tensile test.

[0014]

[Effect of device]

 As described above, according to the material testing device of the present invention, the material test can be performed by the material test piece continuum, and there is an effect that the handling is easy.

[Brief description of drawings]

FIG. 1 is a front view of a material testing device of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a view showing a material test piece continuous body tested by the material testing device of the present invention.

FIG. 4 is a view showing a conventionally known material test piece.

[Explanation of symbols]

 10 Material Specimen Continuum 22 Lower Chuck 23 Upper Chuck 24 Specimen Continuum Grasping Mechanism 27 Specimen Intermittent Feeding Mechanism 38 Cutter

Claims (1)

[Scope of utility model registration request] 1. A test piece continuum gripping mechanism for gripping a material test strip continuum, a test strip intermittent feed mechanism for intermittently feeding the test strip continuum gripping mechanism by the pitch of the test strips of the test strip continuum, and a test. A cutter that cuts the four-circumferential frame portion between the test pieces of the one-piece continuous body, and a pair of chucks that grips the grip portion of the test piece separated by the cutter and displaces at least some deviation to pull the test piece. A material test device for a continuous material test piece.