KR-20260062606-A - Test Specimen Production System and Method for Propellant Property Testing

KR20260062606AKR 20260062606 AKR20260062606 AKR 20260062606AKR-20260062606-A

Abstract

The present invention relates to a system for producing a specimen for physical property testing, comprising a plurality of scanning devices for capturing images of a sample, a control unit for determining a cutting area based on information obtained through the scanning devices, a rotating device on which the sample is mounted and capable of rotation, and a cutting device for cutting the sample through vertical movement. Additionally, a method for producing a specimen for physical property testing may include a scanning step for capturing images of the entire surface of a sample through a scanning device to obtain information, a cutting area determination step in which a control unit determines a cutting area based on information obtained in the scanning step and input information, and a cutting step for cutting the sample according to the information determined in the cutting area determination step.

Inventors

이남례
지성민

Assignees

국방기술품질원

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (15)

In a system for preparing specimens for physical property testing, Multiple scanning devices for imaging a sample; A control unit that determines the cutting area using information obtained through the above scanning device; A rotating device on which a sample is mounted and capable of rotation; and A specimen preparation system for physical property testing comprising a cutting device that cuts a sample through up-and-down movement.
In paragraph 1, The above-mentioned rotating device is a specimen preparation system for physical property testing that further includes at least two or more fixtures for fixing a sample.
In paragraph 2, The above-described rotating device includes a fixing rail on the upper part where the sample is mounted, on which the fixing fixture can move, and The above fixing fixture is a system for preparing specimens for physical property testing that fixes a sample by applying pressure in the direction of the center of the rotating device on the above fixing rail.
In paragraph 3, The above fixture includes a plurality of stepped jaws, and A system for preparing specimens for physical property testing, having a shape in which the height gradually decreases in the direction of the center of the above-mentioned rotating device.
In paragraph 1, The above cutting device is fixed at both ends and has a cutting section longer than the long axis of the sample and A specimen preparation system for physical property testing comprising a first rail capable of vertical movement of the above-mentioned cutting part.
In paragraph 5, A specimen preparation system for physical property testing, wherein the cutting device moves up and down on the first rail, and further includes a detailed control device for moving the cutting part in the front and rear directions.
In paragraph 6, The above detailed control device includes a rotatable plate, and A specimen preparation system for physical property testing in which the cutting part is fixed to the end of the rotating plate and the distance in the forward and backward directions is adjusted through rotation.
In Paragraph 7, The above detailed control device is a system for preparing specimens for physical property testing, further comprising a second rail that moves the cutting section in a radial direction.
In paragraph 5, The above cutting device cuts a sample by moving both ends of the cutting section in the same manner, and The above-mentioned cutting section is a system for producing specimens for physical property testing in the form of a straight wire.
In Paragraph 9, The above cutting section is a system for preparing specimens for physical property testing, including diamond material.
In a method for preparing a specimen for physical property testing using a specimen preparation system for physical property testing according to any one of claims 1 to 10, A scanning step of acquiring information by capturing the entire orientation of a sample through the above scanning device; A cutting area determination step in which the control unit determines the cutting area through information obtained in the above scanning step and input information; and A cutting step for cutting a sample according to the information determined in the above cutting site determination step; A method for preparing a specimen for physical property testing including
In Paragraph 11, The above cutting area determination step is a method for preparing a specimen for physical property testing by optimizing and determining the shape and number of specimens required through the control unit for the sample captured in the above scanning step.
In Paragraph 12, A method for preparing a specimen for physical property testing, comprising the above cutting step, a process of adjusting the position of the sample and the cutting position through the rotating device and the cutting device using information generated according to the above cutting site determination step.
In Paragraph 11, A method for preparing a specimen for physical property testing, comprising a sample acquisition step prior to the above scanning step, wherein a sample is obtained by flattening the surface in contact with the cutting device.
In Paragraph 14, The above sample acquisition step is a method for preparing a specimen for physical property testing, wherein a propulsion system containing solid fuel is cut into multiple equal parts in a direction perpendicular to the longitudinal direction to obtain a specific sample.

Description

Test Specimen Production System and Method for Propellant Property Testing The present invention relates to a system and method for fabricating specimens for propellant property testing, and more specifically, to a system and method for fabricating specimens for propellant property testing capable of optimization and automation through scanning. Most guided missiles utilize solid propellants due to their ease of design, storability, and the ability to launch rapidly. Determining the manufacturing suitability of the propulsion system, evaluating its lifespan after long-term storage, or verifying the performance of the solid propellant in a missile under development are necessary; for this purpose, material property tests, such as tensile strength, are important parameters. Here, as solid propellants are viscoelastic materials, there was a problem in that the reliability of the test results varied significantly due to deviations in test results caused by the fabrication technology of the specimens for physical property testing. In particular, when fabricating specimens, if the cutting process was performed in stages, the specimens were cut in a way that did not fit precisely into the jig, frequently resulting in significant errors in test results or the need for rework. FIG. 1 is a perspective view of a specimen fabrication system for propellant physical property testing according to an embodiment of the present invention. FIG. 2 is a top view and a side view showing a rotating device of a specimen fabrication system for propellant physical property testing according to an embodiment of the present invention. FIG. 3 is a front view showing a cutting device of a specimen fabrication system for propellant physical property testing according to an embodiment of the present invention. FIG. 4 is a flowchart showing a part of a method for preparing a specimen for propellant property testing according to an embodiment of the present invention. FIGS. 5 and 6 are perspective views showing specimens for propellant property testing prepared according to various embodiments of the present invention. Hereinafter, the technical concept of the present invention will be explained in more detail using the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor can appropriately define the concepts of terms to best describe their invention, they should be interpreted in a meaning and concept consistent with the technical concept of the present invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all aspects of the technical concept of the present invention; thus, it should be understood that various modifications capable of replacing them may exist at the time of filing this application. FIG. 1 shows the overall appearance of a specimen manufacturing system (10) for physical property testing according to an embodiment of the present invention. As shown in the figure, the specimen manufacturing system (10) for physical property testing according to an embodiment of the present invention may largely include a control unit (100), a scanning device (200), a rotating device (300), and a cutting device (400). More specifically, the above-described specimen preparation system (10) for physical property testing may include a plurality of scanning devices (200) for capturing a sample, which is the material of the specimen for physical property testing; a control unit (100) for determining a cutting area using information obtained through the scanning devices (200); a rotating device (300) on which the sample is mounted and can rotate; and a cutting device (400) for cutting the sample through vertical movement. At this time, the scanning device (200) can capture images of the sample mounted on the rotating device (300) in all directions. The scanning device (200) can acquire images to optimize cutting so that as many specimens as possible can be produced according to the grain shape of the sample. In addition, the control unit (100) can set a specimen of a desired shape through user input information. The control unit (100) can acquire 3D information of a sample through an image acquired via the scanning device (200) and perform calculations to produce a specimen of the input shape based on this. That is, the control unit (100) can generate information for production, such as the size, location, and number of the desired specimen from the captured sample. In addition, the rotating device (300) and the cutting device (400) can operate in combination for the production of a specimen based on information generated by the control unit (100). That is, the rotating device (300) can set the cutting position by fixing the sampl