KR200477056Y1 - Device for bending test of welding sample - Google Patents

Device for bending test of welding sample Download PDF

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Publication number
KR200477056Y1
KR200477056Y1 KR2020130009006U KR20130009006U KR200477056Y1 KR 200477056 Y1 KR200477056 Y1 KR 200477056Y1 KR 2020130009006 U KR2020130009006 U KR 2020130009006U KR 20130009006 U KR20130009006 U KR 20130009006U KR 200477056 Y1 KR200477056 Y1 KR 200477056Y1
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KR
South Korea
Prior art keywords
welding specimen
bending test
welding
specimen
screw
Prior art date
Application number
KR2020130009006U
Other languages
Korean (ko)
Inventor
강경석
Original Assignee
한전케이피에스 주식회사
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Publication date
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Priority to KR2020130009006U priority Critical patent/KR200477056Y1/en
Application granted granted Critical
Publication of KR200477056Y1 publication Critical patent/KR200477056Y1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0023—Bending
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0296—Welds
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/04—Chucks, fixtures, jaws, holders or anvils

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  • 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)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

A welding specimen bending test apparatus is disclosed. According to an aspect of the present invention, there is provided a plate-shaped lower plate, a support plate laminated on both sides of the upper surface of the lower plate, a plurality of guide grooves formed on one side, A frame part including a plate and a fixing block disposed on both sides of the connection plate and including a fixing pin having a fixing pin at one side so as to be connected to a pressing device for pressing the welding specimen; And a support part which is provided at one side of the frame part and on which the welding specimen is seated during the bending test of the welding specimen, wherein a plurality of support parts are formed so as to correspond to the number of guide grooves.

Description

A device for bending test of welding sample

The present invention relates to a welding specimen bending test apparatus, and more particularly, to a welding specimen bending test apparatus for placing a welding specimen in a bending strength test of a welding specimen.

Generally, a welded specimen used for welding is subjected to a bending strength test to measure the bending strength.

The bending strength test was performed by placing a specimen on an upper portion of a pair of pedestals protruding so as to be spaced apart from the upper surface of the work table and pressing the center of the weld specimen between the pedestals by a pushing- I am doing.

However, the hydraulic type welding bending equipment used in the nuclear power plant has a problem that the ball bearing is broken frequently because the roller rotating part is a ball bearing when the bending of the welding specimen is performed and the load due to the hydraulic pressure can not withstand.

In addition, when the welding specimen is pressed to the pressurizing port, the welding specimen is fixed by the user's hand in order to prevent the welding specimen from moving to the left and right, thereby causing safety accidents during the testing process.

Embodiments of the present invention provide a welding specimen bending test apparatus capable of placing a welding specimen in a bending strength test of the welding specimen.

According to an aspect of the present invention, there is provided a plate-shaped lower plate, a support plate formed to be laminated on both sides of the upper surface of the lower plate, a plurality of guide grooves formed on one side and extending to one side of the support plate, And a fixing block disposed on both sides of the connection plate and having a fixing pin at one side to be connected to a pressing device for pressing the welding specimen; And a support part which is installed at one side of the frame part and on which the welding specimen is seated when the bend test of the welding specimen is carried out, wherein a plurality of the support parts are formed so as to correspond to the number of the guide grooves, have.

The welding specimen bending test equipment according to the embodiments of the present invention can prevent the breakage of the bearing during the bending strength test of the welded specimen by using the bearing supporting the welding specimen as the sleeve bearing.

Further, in the welding specimen bending test equipment according to the embodiments of the present invention, it is easy to measure the bending strength of the welding specimen by fixing the welding specimen.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a jig seating jig according to an embodiment of the present invention; FIG.
2 is an exploded perspective view of FIG.
3 is a view showing the seating jig from different angles, among the welding specimen bending test equipment according to one embodiment of the present invention.
4 is a bottom perspective view showing an assembled state of the connection plate and the pedestal of FIG.
FIG. 5 is a view showing a welding specimen placed on a welding specimen bending test equipment according to an embodiment of the present invention.
6 is a view showing a state in which a welding specimen seated on the welding specimen bending test equipment according to an embodiment of the present invention is pressed by a pressing device.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted, however, that the following embodiments are provided to assist understanding of the present invention, and the scope of the present invention is not limited to the following embodiments. The following embodiments are provided for a more complete understanding of the present invention to those skilled in the art, and it is not intended to be exhaustive or to limit the invention to the precise form disclosed, And it is noted that, for convenience of explanation, the configurations shown in the drawings may be somewhat exaggerated.

FIG. 1 is a perspective view of a welding specimen bending test apparatus according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG. 1.

Referring to FIGS. 1 and 2, the welding specimen bending test equipment 10 according to one embodiment of the present invention may include a frame part 100 and a receiving part 200.

The frame part 100 may include a lower plate 110, a support plate 120, a connection plate 130, and a fixing block 140.

The lower plate 110 may be formed in a plate shape.

At this time, the wheels 111 may be provided at each corner of the lower surface of the lower plate 110. Further, a handle 212 may be provided on both sides of the lower plate 110.

Accordingly, the user can easily move the lower plate 110 by holding the grip 212 and moving the grip 212 to a desired position.

On the other hand, the support plate 120 may be formed on both sides of the upper surface of the lower plate 110. The support plate 120 may be formed in a round shape. At this time, the connection plate 130 is extended to the center of the support plate 120, so that the support plates 120 can be connected to each other.

The connection plate 130 may have a support member (not illustrated) extended from the lower plate 110 at the center of the lower side. This is for the purpose of allowing the welding specimen seated on the receiving portion 200, which will be described later, to be pressed by the pressing device to bear the load applied to the connecting plate 130 during the bending test of the welding specimen.

In addition, a plurality of guide grooves 130a may be formed in the connection plate 130. [

At this time, the guide groove 130a can guide the receiving unit 200 so that the receiving unit 200, which will be described later, slides on the connecting plate 130.

On the other hand, a fixing block 140 may be formed on both sides of the connection plate 130.

The fixing block 140 may have a first screw groove 140a. The first screw groove 140a may be provided with an adjusting screw 142 having a handle portion 142a and a fixing portion 142b.

Further, the fixing block 140 may be provided with a fixing pin 141 on the upper side. This is so as to be connected to the pressing device 20 for pressing the welding specimen A during the welding specimen bending test (see Figs. 5 and 6). At this time, since the pressurizing device 20 is a commercially available product, a detailed description will be omitted.

On the other hand, the receiving portion 200 may be disposed on the upper side of the frame portion 100. Also, a plurality of the receiving portions 200 may be formed to correspond to the number of the guide grooves 130a. In the present embodiment, two guide grooves 130a and two receiving portions 200 are illustrated.

The bearing 200 may include a seating jig 210, a sleeve bearing 220, and a bearing shaft 230.

The seating jig 210 may be disposed above the connecting plate 130. The seating jig 210 will be described in more detail with reference to Fig. 3, which will be described later.

3 is a view showing the seating jig from different angles, among the welding specimen bending test equipment according to one embodiment of the present invention.

Referring to FIG. 3, the seating jig 210 may be formed in the shape of a quadrangular prism. At this time, either the upper surface of the seating jig 210 or one side connected to the upper surface may be opened.

In other words, the seating jig 210 can be opened on two sides. In this embodiment, the upper surface and the front surface of the seating jig 210 are opened and shown.

In the seating jig 210, a coupling hole 211 may be formed on one of two opposing surfaces except for the opened two surfaces. In addition, a second thread groove 212 may be formed on the other surface facing the one surface on which the coupling hole 211 is formed.

In addition, the seating jig 210 may be provided with a slide prevention pin 214 on the upper side. This is to fix the welding specimen so that it does not move during the bending test of the welding specimen.

A fixing groove 215 for engaging with the adjusting screw 142 may be formed on the rear surface of the seating jig 210 (see FIG. 3 (b)).

The fixing groove 215 can be engaged with the adjusting screw 142 described above. More specifically, the fixing portion 142b of the adjusting screw 142 can be fitted and fixed in the fixing groove 215.

Therefore, the user can slide the support portion 200 on the connection plate 130 by rotating the handle portion 142a of the adjustment screw 142.

In addition, the seating jig 210 may have a protruding portion 213 formed on the lower side thereof. This is for binding the seating jig 210 to the guide groove 130a and the third screw groove 213a may be formed in the projection 213. [ At this time, the jig fixing screw 213b may be fastened to the third screw groove 213a. The jig fixing screw 213b will be further described with reference to FIG. 4 to be described later.

4 is a bottom perspective view showing a state in which a jig fixing screw is fastened to the connection plate of FIG.

Referring to FIG. 4, the jig fixing screw 213b may have a larger diameter than that of the guide groove 130a. Accordingly, the head portion of the jig fixing screw 213b can be caught in the guide groove 130a.

In other words, since the head of the jig fixing screw 213b is formed to be larger than the width of the guide groove 130a so as to be caught in the guide groove 130a, it is possible to prevent the seating jig 210 from being detached from the connection plate 130 have.

Referring again to Figures 1 and 2, the sleeve bearing 220 may be disposed inside the seating jig 210. Further, the sleeve bearing 220 can support the welding specimen during the welding specimen bending test.

In addition, the sleeve bearing 220 may be fixed to the seating jig 210 by a bearing shaft 230.

At this time, the bearing shaft 230 may have a threaded portion formed at one end thereof. Also, the bearing shaft 230 can pass through the coupling hole 211 described above.

More specifically, the bearing shaft 230 passes through the coupling hole 211 and the sleeve bearing 220, and the threaded portion can be engaged with the second threaded groove 212. At this time, a washer 231 may be disposed on the bearing shaft 230 to reduce friction between the seating jig 210 and the sleeve bearing 220.

5 and 6, a method of measuring the bending strength of a welding specimen using the welding specimen bending test equipment according to one embodiment of the present invention will be described.

FIG. 5 is a view in which a welding specimen is mounted on a welding specimen bending test equipment according to an embodiment of the present invention, and FIG. 6 is a view showing a welding specimen placed on a welding specimen bending test equipment according to an embodiment of the present invention, As shown in Fig.

5 and 6, before the welding specimen bending strength test is performed, the user rotates the adjusting screw 142 to adjust the distance between the receiving portions 200, which is appropriate for the length of the welding specimen A,

When the distance between the support portions 200 is appropriately adjusted, the user places the welding specimen A on the sleeve bearing 220. Thereafter, the pressing device 20 is fixed to the fixing pin 141, and the pressing tool 21 is positioned at the center of the welding specimen A. At this time, the left and right sides of the welding specimen A can be fixed by the anti-

On the other hand, when the pressing tool 21 is located at the central portion of the welding specimen A, the pressing specimen 21 presses the welding specimen A placed on the sleeve bearing 220 in the downward direction, Is measured.

As described above, in the welding specimen bending test equipment according to one embodiment of the present invention, the bearing supporting the welding specimen A is used as the sleeve bearing 220, thereby preventing damage to the bearing caused when the ball bearing is used .

Further, at the time of the bending strength test of the welding specimen, the welding specimen A is fixed so as not to move by the anti-skid fins 214, so that measurement can be facilitated.

It will be apparent to those skilled in the art that various modifications and additions, additions, substitutions, and additions may be made to the components without departing from the spirit of the invention as set forth in the appended claims. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10: Welding specimen bending test equipment 20: Pressurizing device
21: pressing part 100: frame part
110: lower plate 111: wheel
112: handle 120: support plate
130: connecting plate 130a: guide groove
140: fixed block 140a: first screw groove
141: Fixing pin 142: Adjusting screw
142a: handle portion 142b:
200: receiving part 210: seating jig
211: coupling hole 212: second screw groove
213: projecting portion 213a: third screw groove
213b: jig fixing screw 214: anti-slide pin
215: Fixing groove 220: Sleeve bearing
230: Bearing shaft 231: Washer
A: Welding specimen

Claims (6)

A plurality of guide grooves 130a are formed on one side of the lower plate 110 and a plurality of guide grooves 130a are formed on one side of the support plate 120 and extend And a connecting plate 130 disposed on both sides of the connecting plate 130 and connected to the pressing device 20 for pressing the welding specimen A, A frame part 100 including a fixing block 140 having a fixing pin 141; And
And a support part 200 installed at one side of the frame part 100 and on which the welding specimen is seated during the bending test of the welding specimen,
The receiving unit 200 includes:
A plurality of guide grooves 130a are formed to correspond to the number of the guide grooves 130a,
Wherein the upper surface and one side surface connected to the upper surface are opened,
A coupling hole 211 is formed on one of two opposing surfaces except for the two opened surfaces and a second screw groove 212 is formed on the other surface,
A seating jig 210 having a protruding portion 213 formed on a bottom surface of the connecting plate 130 so that the protruding portion 213 can slide on the connecting plate 130 along the guide groove 130a;
A bearing shaft 230 that is seated on the seating jig 210 and passes through the coupling hole 211 and is coupled to the second screw groove 212; And
And a sleeve bearing (220) inserted through the bearing shaft (230).
The method according to claim 1,
And a wheel (111) is provided at each corner of the lower surface of the lower plate (110).
The method according to claim 1,
A first screw groove 140a is formed on one side of the fixing block 140 so that an adjusting screw 142 is engaged with the first screw groove 140a and one end of the adjusting screw 142 is engaged with the receiving portion 200) for welding specimen bending test equipment.
delete The method according to claim 1,
The welding specimen bending test equipment is provided at one side of the seating jig (210) with the anti-skid fins (214) for fixing the welding specimen at the bending test of the welding specimen.
The method according to claim 1,
A third screw groove 213a is formed at one side of the protrusion 213 and a jig fixing screw 213b is fastened to the third screw groove 213a,
The jig fixing screw (213b) has a diameter larger than that of the guide groove (130a).


KR2020130009006U 2013-11-01 2013-11-01 Device for bending test of welding sample KR200477056Y1 (en)

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Application Number Priority Date Filing Date Title
KR2020130009006U KR200477056Y1 (en) 2013-11-01 2013-11-01 Device for bending test of welding sample

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Application Number Priority Date Filing Date Title
KR2020130009006U KR200477056Y1 (en) 2013-11-01 2013-11-01 Device for bending test of welding sample

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019050344A1 (en) * 2017-09-07 2019-03-14 주식회사 엘지화학 Apparatus and method for evaluating electrode embrittlement
CN110023735A (en) * 2017-09-07 2019-07-16 株式会社Lg化学 For assessing the brittle device and method of electrode
CN113820225A (en) * 2021-10-20 2021-12-21 博众精工科技股份有限公司 Shearing force testing tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090079420A (en) * 2008-01-17 2009-07-22 동부제철 주식회사 Bending test apparatus for test piece
KR20120116267A (en) * 2011-04-12 2012-10-22 김명수 Bending test machine for weld specimen
JP2013217829A (en) * 2012-04-11 2013-10-24 Nippon Steel & Sumitomo Metal Bending test device and bending test method using the same
JP2014098609A (en) * 2012-11-14 2014-05-29 Mitsubishi Heavy Ind Ltd Bending test method of weld joint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090079420A (en) * 2008-01-17 2009-07-22 동부제철 주식회사 Bending test apparatus for test piece
KR20120116267A (en) * 2011-04-12 2012-10-22 김명수 Bending test machine for weld specimen
JP2013217829A (en) * 2012-04-11 2013-10-24 Nippon Steel & Sumitomo Metal Bending test device and bending test method using the same
JP2014098609A (en) * 2012-11-14 2014-05-29 Mitsubishi Heavy Ind Ltd Bending test method of weld joint

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019050344A1 (en) * 2017-09-07 2019-03-14 주식회사 엘지화학 Apparatus and method for evaluating electrode embrittlement
CN110023735A (en) * 2017-09-07 2019-07-16 株式会社Lg化学 For assessing the brittle device and method of electrode
US11060961B2 (en) 2017-09-07 2021-07-13 Lg Chem, Ltd. Apparatus and method for evaluating electrode embrittlement
CN110023735B (en) * 2017-09-07 2021-09-14 株式会社Lg化学 Apparatus and method for assessing brittleness of an electrode
CN113820225A (en) * 2021-10-20 2021-12-21 博众精工科技股份有限公司 Shearing force testing tool
CN113820225B (en) * 2021-10-20 2024-05-17 博众精工科技股份有限公司 Shear force test fixture

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