KR101706565B1 - Cutting apparatus for test specimen - Google Patents

Cutting apparatus for test specimen Download PDF

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Publication number
KR101706565B1
KR101706565B1 KR1020150169718A KR20150169718A KR101706565B1 KR 101706565 B1 KR101706565 B1 KR 101706565B1 KR 1020150169718 A KR1020150169718 A KR 1020150169718A KR 20150169718 A KR20150169718 A KR 20150169718A KR 101706565 B1 KR101706565 B1 KR 101706565B1
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South Korea
Prior art keywords
specimen
cutting
assembly
lever
cutter blade
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KR1020150169718A
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Korean (ko)
Inventor
황대성
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주식회사 포스코
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Priority to KR1020150169718A priority Critical patent/KR101706565B1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
    • G01N2001/2873—Cutting or cleaving

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A specimen cutting apparatus for cutting a specimen to a desired size is disclosed. A specimen cutting apparatus according to the present invention includes a cutting assembly provided with a plurality of cutter blades and movable back and forth, a plurality of cutting grooves for allowing a cutter blade of the cutting assembly to enter, and a specimen seating portion And a lever assembly having a slit corresponding to the plurality of incision grooves so that a cutter blade of the cutting assembly can be received, and a lever assembly for pressing the specimen together with the grip assembly.

Figure R1020150169718

Description

CUTTING APPARATUS FOR TEST SPECIMEN

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a specimen cutting apparatus, and more particularly, to a specimen cutting apparatus for finely cutting and separating a specimen.

A specimen is a piece of ore or mineral selected for testing or analysis, and in particular refers to a piece of metal used for testing purposes to evaluate the properties of the test material manufactured in a particular manner in the laboratory.

In general, as a cutting apparatus for cutting such a specimen, a manual cutting apparatus (also referred to as a band saw) including a cutter blade has been widely used. Such a conventional cutting apparatus includes a pair of fixing jigs for fixing a specimen in a state of being mounted on a top of a work table, a cutter blade for cutting a specimen fixed by a pair of fixing jigs at the top of the work table, And a driving unit for driving.

However, these conventional manual cutting devices have some problems in cutting specimens for research and experimentation. Because of the use of a single cutter blade, there is a problem that the specimen is not very precise, the size and weight of the cut specimen vary, and there is a problem of repeatedly cutting the specimen repeatedly. That is the problem that needs to be repeatedly analyzed.

Korean Patent Laid-Open No. 10-2007-0108590 (November 13, 2007), which is related to such a specimen cutting apparatus, discloses that the specimen can be automatically cut to a desired size by being automatically controlled by computer programming A sample cutting device is disclosed.

Korean Patent Laid-Open No. 10-2007-0108590 (November 13, 2007)

It is an object of the present invention to provide a specimen cutting apparatus capable of precisely cutting a specimen and performing a plurality of cutting operations at a time.

According to an aspect of the present invention, there is provided a cutting apparatus comprising: a cutting assembly provided with a plurality of cutter blades and movable back and forth; a plurality of cutting grooves provided to allow a cutter blade of the cutting assembly to enter; There is provided a specimen cutting apparatus including a grip assembly and a lever assembly provided with a slit corresponding to the plurality of cutting grooves so as to allow a cutter blade of the cutting assembly to come in and pressing the specimen together with the grip assembly .

The lever assembly may include a clamp lever fixed to be rotatable in a seesaw manner, and a power supplier connected to the clamp lever to provide power to rotate the clamp lever.

The grip assembly may be rotatable in an axial direction, and the cutout groove may be provided in a grid shape on the specimen seating portion.

Also, a seating groove may be formed in the specimen seating portion of the grip assembly so that the specimen may be easily seated.

A plurality of grooves may be formed in the slit of the lever assembly.

The specimen cutting apparatus according to the present invention is provided with a cutting assembly provided with a plurality of cutter blades to precisely cut the component analysis specimen so that a plurality of test specimens having the same size and dimensions can be manufactured. By precisely fabricated specimens, accurate carbon and nitrogen analysis can be performed to reduce the occurrence of re-experiments and improve the quality of vacuum dissolution by reducing the deviation of analytical values, thereby contributing to the development of steel types that meet the requirements of researchers.

Further, the clamp lever is rotatably fixed in a seesaw manner, and the power providing portion provides a rotational force at one side of the clamp lever, so that the specimen can be pressed with a great force by the principle of the lever.

In addition, the clamp lever and the grip assembly each have a slit and a cutout groove for allowing a plurality of cutter blades to enter, so that the cutting assembly provided with a plurality of cutter blades can be easily moved back and forth so that the entire specimen can be cut neatly .

Further, since the grip assembly is rotatable in the axial direction and the cutout grooves are provided in a lattice shape, the cutting direction of the test piece can be adjusted only by rotation of the grip assembly, so that a plurality of test pieces having a desired size can be manufactured at once without transferring the test piece .

In addition, a seating groove is provided in the specimen seating portion of the grip assembly so that the specimen can be easily seated.

Fig. 1 (a) shows a specimen before cutting, and Fig. 2 (b) shows a specimen cut finely.
2 is a perspective view showing a specimen cutting apparatus according to an embodiment of the present invention.
3 is a side view of a specimen cutting apparatus according to an embodiment of the present invention.
4 is a configuration diagram of a cutting assembly of a specimen cutting apparatus according to an embodiment of the present invention.
5 is a perspective view illustrating the configuration and operation of a specimen cutting apparatus according to an exemplary embodiment of the present invention.
6 is an enlarged view of a portion A in Fig.
Fig. 7 is an enlarged view of the portion A in Fig. 5 at the specimen cutting step.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

A specimen cutting apparatus according to an embodiment of the present invention refers to a device for cutting a test specimen. Fig. 1 shows a state change of a specimen cut by the specimen cutting apparatus. Fig. 1 (a) shows a specimen before cutting, and Fig. 2 (b) shows a specimen cut finely.

The specimens need to be cut to the same size for analysis under the same conditions in order to evaluate the properties, etc. (a) The specimen in the state needs to be cut into specimens of (b) for various tests and tests .

FIG. 2 is a perspective view showing a specimen cutting apparatus according to an embodiment of the present invention, FIG. 3 is a side view of a specimen cutting apparatus according to an exemplary embodiment of the present invention, Fig. 3 shows a schematic view of a cutting assembly of a cutting device. Fig. Such a specimen cutting apparatus serves to cut the specimen shown in Fig. 1 (a) into the state of (b).

2 to 4, a specimen cutting apparatus according to an embodiment of the present invention includes a cutting assembly 100, a lever assembly 200, and a grip assembly 300. The guide groove 10a is provided on a side wall of the case 10 so that the cutting assembly 100 to be described in detail below can be moved back and forth .

First, the cutting assembly 100 will be described. The cutting assembly 100 includes a cutter blade 110, an interval adjusting plate 120, a connecting rod 130, and a fixing bolt 140. Hereinafter, each configuration will be described in detail.

First, the cutter blade 110 is a means for cutting the specimen S. A plurality of cutter blades 110 may be provided so as to be cut several times at a time. Here, for example, only the first cutter blade 111 and the second cutter blade 112 will be described, but they may be a four-blade structure or a six-blade structure as shown in the drawing. At this time, the cutter blade 110 may be a rotary saw blade rotating in place.

Next, the interval adjusting plate 120 performs a function of adjusting a cutting interval of the test piece S. Thus, the specimen S having the same length as the gap between the first cutter blade 111 and the second cutter blade 112 can be manufactured. In particular, if the cutter blade 110 has a four-edged structure as shown in the drawing, three such spacing control plates 120 may be provided.

Next, the connecting rod 130 serves to transmit the power so that the cutter blade 110 can be rotated. One side of the connecting rod 130 is connected to a driving unit (not shown) to rotate, and the cutter blade 110 fixed to the connecting rod 130 is rotated in the axial direction. At this time, a power transmission belt (not shown) is provided between the connection rod 130 and the driving unit (not shown) to transmit the power of the driving unit (not shown). Here, the driving unit (not shown) may be a motor or a heat engine, which is not limited to a designer's option.

The fixing bolt 140 integrally connects and fixes the cutter blade 110 with the gap adjusting plate 120 and the connecting rod 130. The bolt 140 may be a bolt, But is not limited thereto.

The cutting assembly 100 including the above-described components is configured such that the connection rod 130 is rotated by a drive unit (not shown) powered by the power, and the cutter blade 110 fixed to the cutter blade 110 is rotated So as to cut the specimen S. At this time, the cutter blade 110 has a four-blade structure including a first cutter blade 111 and a second cutter blade 112, so that the cutting operation can be performed several times by one advancement.

At this time, the cutting assembly 100 is moved back and forth along the guide groove 10a provided in the case 10 for cutting operation. The cutting assembly 100 also performs the above-described function by a hydraulic cylinder (not shown) .

That is, the first cutter blade 111 and the second cutter blade 112 fixed at a specific distance from the first cutter blade 111 cut the specimen at the same time so that the gap between the first cutter blade 111 and the second cutter blade 112 It is possible to produce a specimen having the same length as that of the specimen.

Next, the lever assembly 200 will be described. The lever assembly 200 includes a lever support 210, a clamp lever 220, a rod 230, and a power supply 240.

First, the lever support 210 is a means for supporting the clamp lever 220 to be described later. The lever support 210 may be installed perpendicularly to the bottom surface of the case 10. At this time, the lever support 210 supports the center portion of the bar-shaped clamp lever 220, so that the clamp lever 220 can be coupled to each other so that the clamp lever 220 can be rotated in a seesaw manner.

The lever support 210 may be provided with a reinforcing member (not shown) for supporting the weight of the clamp lever 220 and the force acting thereon. For example, it acts like a beam connecting a column at a building facility.

Next, the clamp lever 220 is seated on the lever support 210 as described above to press the specimen S together with the grip assembly 300 to be described later. The grip assembly 300 pushes the specimen S placed at the end of the grip assembly 300 downward and the clamp lever 220 pushes it from above.

6, a slit 220a and a groove 220b may be formed in the clamp lever 220. In this case,

Here, the slit 220a serves to allow the cutter blade 110 of the cutting assembly 100 to be inserted and moved back and forth. So that the cutter blade 110 can be inserted deeply into the clamp lever 220 in the longitudinal direction so that the specimen S can be cut neatly.

The grooves 220b serve as passages for allowing the debris generated when the specimen S is cut, that is, scraps, to escape. These grooves 220b are provided between the above-described slits 220a so that small pieces of the specimen S cut by the cutter blade 110 to be rotated can easily escape.

The grooves 220b can also act as a vent hole when sandwiched between the cutter blade 110 and the clamp lever 220. [ A space is provided between the cutter blade 110 and the clamp lever 220 so that the cutting operation can be easily performed.

2 to 4, the power supply 240 can move the rod 230 up and down, and as a result, the clamp lever 220 is rotated to move the specimen S together with the grip assembly 300, As shown in FIG.

In other words, before performing the cutting operation, a space is formed between the clamp lever 220 and the grip assembly 300 so that the specimen S can be placed by an operator or by a mechanical device. In performing the cutting operation, The feeder 240 is operated so that the rod 230 moves upward and the clamp lever 220 presses the specimen S sequentially so that the specimen S can be fixed.

At this time, the rod 230 may transmit the power provided from the power supply 240 to the clamp lever 220. Such a rod 230 may serve as a linkage mechanism for connecting the rotating clamp lever 220 without any difficulty in drawing an arc.

The lever assembly 200 including the above-described configuration allows the clamp lever 220, which is moved in a seesaw manner by the power supplier 240, to firmly fix the test piece S together with the grip assembly 300 . So that the power provided from the power supplier 240 can be applied to the specimen S with a larger force by the lever principle.

Next, the grip assembly 300 will be described. The grip assembly 300 may include a specimen seating portion 310 and a body portion 320. At this time, the grip assembly 300 not only releases the specimen S but also presses and fixes the specimen S together with the clamp lever 220.

In addition, the grip assembly 300 can seat the specimen S without shaking with the specimen mounting portion 310 provided on the top face. So that the specimen S is temporarily dropped or the position is not disturbed before it is pressed by the clamp lever 220. At this time, a seating groove 310a may be formed in the specimen seating part 310 where the specimen S is placed.

In addition, the grip assembly 300 may be provided with a cutout groove 300a. The cutout groove 300a serves to allow the cutter blade 110 of the cutting assembly 100 to be inserted into the grip assembly 300 so as to be moved back and forth. Is similar to the slit 220a provided in the clamp lever 220 described above. At this time, the cutout groove 300a may be provided to correspond to the slit 220a. So that the cutter blade 110 provided in the cutting assembly 100 passes through the slit 220a and the incision groove 300a at the same time.

The cutout groove 300a may be formed in a grid shape on the specimen seating part 310 where the specimen S is mounted on the grip assembly 300. [ The grooves into which the cutter blades 110 can be inserted are formed at right angles. This allows the incision groove 300a to perform the same function even when the grip assembly 300 is rotated.

The grip assembly 300 may be rotatably coupled to the body 320 to be described later. The specimen S can be easily cut in a state of being cut as shown in FIG. 1 (b) by continuously cutting the specimen S after the cutting operation is completed by turning it in the direction of 90 degrees. At this time, the rotation of the grip assembly 300 may be manually performed by a worker or mechanically operated, but is not limited thereto.

The seating groove 310a allows the specimen S to be seated on the specimen seating portion 310 provided on the grip assembly 300 and can be placed on the top, bottom, left, and right without shaking. The seating groove 310a may be formed such that a part of the specimen seating portion 310 is cut inward. This seating groove 310a has the effect of preventing the temporarily placed sample S from falling off easily from the grip assembly 300. [

Next, the body 320 serves to support the grip assembly 300 so that the grip assembly 300 described above can be vertically installed on the case 10. The body 320 may include a driving unit (not shown) that provides power to rotate the grip assembly 300 in the axial direction. Here, such a driving unit (not shown) may be of an electric type or a hydraulic type, and is not limited thereto.

The apparatus for cutting specimens according to an embodiment of the present invention may further include a controller (not shown). Back movement of the cutting assembly 100, rotation of the clamp lever 220 by the power supplier 240, and rotation of the grip assembly 300 are automated by the operator in a predetermined manner. This allows the specimen cutting device to be operated unattended by mechanical force instead of labor force as an automation system. The configuration of the specimen cutting apparatus according to one embodiment of the present invention has been described above. Hereinafter, a description will be made of an operation method based on the organic coupling relationship of each of the above-described structures.

5 is a perspective view showing a configuration and an operation method of a specimen cutting apparatus according to an embodiment of the present invention. FIG. 6 is an enlarged view of a portion A in FIG. 5, Fig.

5 to 7, the operation of the specimen cutting apparatus according to one embodiment of the present invention can be performed in the following respective procedures. The sample holding step, the first fixing step, the first cutting step, the first releasing step, the sample rotating step, the second fixing step, the second cutting step, the second releasing step, and the sample pulling step It is. In summary, the specimen is placed on the specimen cutting device and the specimen (S) is cut once again after the cutting operation is performed to obtain the specimen having the desired size and weight. Hereinafter, each of the above-described steps will be described in detail.

First, the sample placing step refers to a cutting preparation step in which the sample S is placed on the sample placing part 310 provided in the grip assembly 300. At this time, the specimen S may be placed in the seating groove 310a provided in the specimen seating portion 310 for adjusting the fixing position.

Next, in the first fixing step, the clamp lever 220 is rotated so that the clamp lever 220 presses and fixes the specimen S placed on the specimen seating portion 310. This is accomplished by the rotation of the clamp lever 220, which is moved in the upward direction by the operation of the power supplier 240 and sequentially fixed in a seesaw manner.

Next, in the first cutting step, the cutting assembly 100 moves forward and the cutter blade 110, which rotates accordingly, moves forward along the slit 220a formed in the clamp lever 220 and the cutout groove 300a formed in the grip assembly 300 ) And cutting the fixed sample (S).

Next, the first releasing step is a step of releasing the fixed specimen S again, as opposed to the first fixing step. At this time, the specimen S is not fixed but placed on the specimen mounting part 310 as in the specimen mounting step.

Next, the specimen rotation step is a step of changing the cutting direction of the specimen S by rotating the grip assembly 300 of the grip assembly 300 in a specific direction. In this case, although it is specified in the direction of 90 degrees in the embodiment of the present invention, it will be apparent to a person skilled in the art that various changes can be made to 30 degrees or 60 degrees.

Next, the second fixing step is the same as the first fixing step. In this case, however, there is a difference in that the specimen S cut in one direction is fixed.

Next, the second cutting step is a step of cutting the specimen S rotated in the specific direction in the specimen rotating step described above.

Next, the second releasing step is the same as the first releasing step described above. However, there is a difference in that the completely cut specimen (S) is in this state.

Next, the specimen removal step is a step of removing the specimen S, which has been cleanly cut through each of the above-described steps, from the specimen placing part 310.

As a result, the specimen cutting apparatus according to one embodiment of the present invention, including the above-described configurations and operation modes, has the following advantages over existing facilities.

First, the conventional grinding with the sandpaper due to the repeated cutting and chips due to the defective cutting of the specimen by the manual cutting is eliminated, the waste analysis by the repeated analysis of the list analysis room is reduced, and the carbon, nitrogen The specimen is precisely cut to obtain specimens with clean surface and uniform size and weight (0.5 ~ 1g).

In addition, a cutting assembly 100 in which a plurality of cutter blades 110 are integrated is provided, and a specimen S for analysis of a component for vacuum melting can be precisely cut, whereby a plurality of test specimens having the same size and dimensions can be manufactured . By precisely fabricated specimens, accurate carbon and nitrogen analysis can be performed to reduce the occurrence of re-experiments and improve the quality of vacuum dissolution by reducing the deviation of analytical values, thereby contributing to the development of steel types that meet the requirements of researchers.

Since the rotatable grip assembly 300 is provided to adjust the cutting direction of the test piece S only by rotation of the grip assembly 300, a plurality of specimens S ) Can be produced.

The other end of the clamp lever 220 and the other end of the grip assembly 300 are respectively cut into a plurality of strands so that the cutter blade 110 of the cutting assembly 100 can be inserted, The cutting assembly 100 provided with the cutting tool 110 can be easily moved back and forth.

In addition, the grip assembly 300 is provided with a seating groove 310a at an end thereof so that the test piece S can be easily seated.

The clamp lever 220 is rotatably installed on the lever support 210 in a seesaw manner so that the rod 230 and the power supplier 240 move one side of the clamp lever 220 up and down, (S) can be pressed with great force by the principle of leverage.

Since the plurality of grooves 220b are formed in the slit 220a of the lever assembly 200, scrap or the like generated by the cutting of the test piece S can be easily discharged.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. . Accordingly, the true scope of the invention should be determined only by the appended claims.

S: specimen, 10: case,
10a: guide groove, 11: cover,
100: Cutting assembly, 110: Cutter blade,
111: first cutter blade, 112: second cutter blade,
120: spacing regulating plate, 130: connecting rod,
140: fixing bolt, 200: lever assembly,
210: lever support, 220: clamp lever,
220a: slit, 220b: groove,
230: load, 240: power supply,
300: grip assembly, 300a: incision groove,
310: specimen seating part, 310a: seating groove,
320:

Claims (5)

A cutting assembly provided with a plurality of cutter blades and movable back and forth,
A grip assembly provided with a plurality of cut-out grooves for allowing a cutter blade of the cutting assembly to come in and having a specimen seating part on which a specimen is placed,
And a lever assembly having a slit corresponding to the plurality of incision grooves for receiving a cutter blade of the cutting assembly and pressing the specimen with the grip assembly,
Said grip assembly being rotatable in an axial direction,
Wherein the cutting groove is provided in a lattice shape on the specimen seating portion. The method according to claim 1,
The lever assembly
A clamp lever rotatably fixed in a seesaw manner,
And a power providing portion connected to the clamp lever to provide power to rotate the clamp lever. delete The method according to claim 1,
Wherein the gripping part of the grip assembly has a seating groove formed therein to facilitate the seating of the specimen. The method according to claim 1,
Wherein the slit of the lever assembly is formed with a plurality of grooves for allowing scrap to escape.
KR1020150169718A 2015-12-01 2015-12-01 Cutting apparatus for test specimen KR101706565B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040054970A (en) * 2002-12-20 2004-06-26 주식회사 포스코 An apparatus for cutting the impact sample
KR20070108590A (en) 2006-05-08 2007-11-13 현대자동차주식회사 Auto specimen-cutter
US20100175520A1 (en) * 2006-09-06 2010-07-15 Jian-Qiang Kong Method and device for cutting fresh tissue slices
KR20100127661A (en) * 2009-05-26 2010-12-06 현대제철 주식회사 Cutter for making sample from rolling product
KR20130019647A (en) * 2011-08-17 2013-02-27 주식회사 포스코 Device for cutting plate for test piece

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040054970A (en) * 2002-12-20 2004-06-26 주식회사 포스코 An apparatus for cutting the impact sample
KR20070108590A (en) 2006-05-08 2007-11-13 현대자동차주식회사 Auto specimen-cutter
US20100175520A1 (en) * 2006-09-06 2010-07-15 Jian-Qiang Kong Method and device for cutting fresh tissue slices
KR20100127661A (en) * 2009-05-26 2010-12-06 현대제철 주식회사 Cutter for making sample from rolling product
KR20130019647A (en) * 2011-08-17 2013-02-27 주식회사 포스코 Device for cutting plate for test piece

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