KR101640182B1 - Torque Tester Device - Google Patents
Torque Tester Device Download PDFInfo
- Publication number
- KR101640182B1 KR101640182B1 KR1020160003732A KR20160003732A KR101640182B1 KR 101640182 B1 KR101640182 B1 KR 101640182B1 KR 1020160003732 A KR1020160003732 A KR 1020160003732A KR 20160003732 A KR20160003732 A KR 20160003732A KR 101640182 B1 KR101640182 B1 KR 101640182B1
- Authority
- KR
- South Korea
- Prior art keywords
- cylindrical portion
- load
- inner cylindrical
- test piece
- jig
- Prior art date
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- 238000012360 testing method Methods 0.000 claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims description 31
- 230000033001 locomotion Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 12
- 238000012986 modification Methods 0.000 description 18
- 230000004048 modification Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000004826 seaming Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- 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
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0042—Force sensors associated with force applying means applying a torque
-
- 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
- G01N2203/0021—Torsional
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- 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
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
-
- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
-
- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torque tester apparatus, and more particularly, to a torque tester apparatus used for checking whether a welded component is defective or not.
The automobile is equipped with various parts, such as screw connection using bolt and nut, welding connection using rivet, or rivet bonding.
In the process of fastening bolts and nuts used for coupling between parts, it is necessary to fix the nuts in advance at the fastening positions of the parts. In this case, the nuts are fastened to the fastening positions of the parts using arc welding or the like So that the bolt can be easily joined to the portion where the nut is fixed without the burden of the operator placing the nut at the fastening position.
The process of confirming whether or not the nut has been properly press welded to the part must be performed as a work for reducing the defect rate.
However, in the related art, there is a problem that there is no torque tester device for confirming a defect in a welded portion by applying a torque to a welded press-fit-joined nut to a base material to easily break the welded portion.
The torque tester apparatus according to an embodiment of the present invention is intended to provide a torque tester apparatus capable of accurately measuring a torque intensity of a welded portion and easily confirming a defect in a welded portion.
According to an aspect of the present invention, there is provided a jig comprising: a jig formed to fix a test piece having a welded portion formed thereon; a vertical torque portion formed to be seated on a test piece from above the jig; And a tester management unit configured to receive load information measured by the load transmission unit, wherein the vertical torque unit is rotated to rotate the test piece along a welding direction of the test piece, Wherein the load transfer unit measures a change in load until the broken portion is broken and transfers the measured load to the tester management unit.
The vertical torque portion includes a fixed cylindrical portion formed in a cylindrical shape and an inner cylindrical portion formed to be positioned through the inner side of the fixed cylindrical portion. The inner cylindrical portion can be rotated separately from the fixed cylindrical portion by the bearing member.
The vertical torque portion may further include a center bar formed to pass through the inside of the inner cylindrical portion, and the inner cylindrical portion may further include a clamping member formed to catch or release the center rod.
The present invention further includes an elevating and lowering substrate formed to move the jig up and down and a moving substrate formed to move the jig in the left or right or front and rear directions and the moving substrate is moved by a driving gear and a driven gear Or moved by the cylinder portion.
The present invention may further include a motion direction switching member formed to be coupled to the inner cylindrical portion and converting a linear motion transmitted from the load transmission portion into a rotational motion.
The present invention may further comprise a one-way rotating member coupled to a lower portion of the center bar.
The inner cylindrical portion may have an upper outer circumference formed in an angular shape, and the motion direction switching member may be formed with an angled hole coupled with the angular outer circumference.
Wherein the one-way rotary member includes an inner cylindrical portion having a circumference formed in a circular shape, an outer cylindrical portion formed to surround the outer circumference of the inner cylindrical portion, and a cam bearing portion formed between the inner cylindrical portion and the outer cylindrical portion, The outer cylindrical portion can be rotated only in one direction around the inner cylindrical portion by the cam bearing portion.
The motion direction switching member is formed with a load transmission connection portion formed to be interlocked with the load transmission portion, and a bearing type interlocking portion may be formed in the load transmission connection portion.
The load transmitting portion may include a horizontal moving member having an interlocking movement space in which the interlocking portion is located, and a load sensing member having one side connected to the horizontal moving member and the other side connected to the cylinder portion.
A guide rail may be formed at a lower portion of the horizontally moving member.
The jig may include a body having a concave groove on which the test piece base material is placed, a fixing member formed on the concave groove, and a gap adjusting member driven to fix the base member.
The present invention may further include a camera unit configured to capture a test piece fixed to the jig.
The tester management unit may be a touch monitor or a general monitor, and a voice support unit may be formed.
The effects produced by the present invention are as follows.
First, the change of the load until the welded part of the test specimen is broken can be measured by the load transfer part and transmitted to the tester management part while the vertical torque part is rotated, so that the weld joint part of the test specimen is precisely measured Effect can be generated.
Second, since the inner cylindrical portion can be rotated separately from the fixed cylindrical portion by the bearing member, a rotary torque can be formed on the inner cylindrical portion with respect to the fixed cylindrical portion.
Third, there is provided a clamping member formed to catch or release the center rod on the inner cylindrical portion, so that after the center rod is properly raised and lowered, the center rod can be gripped by the clamping member and rotated integrally with the inner cylindrical portion.
Fourth, an effect that the linear motion transmitted from the load transmission portion can be converted to the rotational motion of the inner cylindrical portion by the motion direction switching member is generated.
Fifth, an effect of rotating the lower portion of the center bar in one direction by the one-way rotating member is generated.
Sixth, an incision part having a shape partially cut in the longitudinal direction is formed in the lower part of the center bar, so that the coupling with the clamping member can be strengthened.
Seventh, there is formed a seaming descending member having a thread formed on the inner periphery of the center bar so that the center bar can be raised and lowered.
Eighth, the inner cylindrical portion is formed in an angular shape in its upper outer periphery, and the angular opening which is engaged with the angular outer periphery is formed in the moving direction switching member, so that the rotation of the moving direction switching member can be transmitted by rotation of the inner cylindrical portion .
Ninthly, the one-way rotary member can rotate the outer cylindrical portion only in one direction around the inner cylindrical portion by the cam bearing portion, so that the position of the contact member can be rotated in one direction according to the shape of the test piece.
The tenth movement direction changing member is formed with a load transmission connection portion formed to be interlocked with the load transmission portion and a bearing type interlocking portion is formed in the load transmission connection portion so that the horizontal movement of the load transmission portion is performed by the rotation movement The effect can be obtained.
Eleventh, a load sensing member is formed in the load transmitting portion, and a force transmitted from the cylinder portion can be sensed.
The eleventh guide rail is formed at the lower part of the horizontal moving member to guide horizontal movement of the horizontal moving member.
The jig has the effect of fixing the test piece base material including the body having the concave groove on which the base material of the test piece is placed, the fixing member formed on the concave groove and the interval adjusting member driven by the fixing member to fix the base material. do.
Fourteenth, a camera section which is capable of photographing a test piece fixed to the jig generates an effect that visual data can be obtained by capturing an image before and after the weld portion of the test piece is destroyed.
Fifth, the tester management unit is formed in the form of a touch monitor or a general monitor, so that the load graph can be visually monitored, and the sound support unit can guide the torque tester process to the surroundings.
1 is a perspective view showing a torque tester apparatus as an embodiment of the present invention.
2 is a front view showing a torque tester apparatus as an embodiment of the present invention.
3 is a side view showing a torque tester device according to an embodiment of the present invention.
4 is a schematic perspective view showing an enlarged view of the jig shown in Fig.
Fig. 5 is a perspective view showing the vertical torque portion of Fig. 1; Fig.
FIG. 6 is an exploded perspective view of FIG. 5; FIG.
7 is a cross-sectional view showing the clamping member of Fig.
8 is a perspective view showing the one-way rotating member of Fig.
9 is a schematic view showing the contact member of Fig. 6;
10 is a graph showing the load measured in the load cell.
11 is a perspective view showing a modification to the embodiment of the present invention.
12 is a perspective view showing a second modification of the embodiment of the present invention.
Fig. 13 is a schematic front view showing a third modification of the embodiment of the present invention in which the base of Fig. 12 is viewed in the x-axis direction; Fig.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.
In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.
Also, the terms used in the present application are used only to describe certain embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
FIG. 1 is a perspective view showing a torque tester apparatus according to an embodiment of the present invention, FIG. 2 is a front view showing a torque tester apparatus according to an embodiment of the present invention, FIG. 3 is a side view showing a torque tester apparatus according to an embodiment of the present invention 4 is an enlarged schematic perspective view of the jig shown in Fig.
The
The
In the embodiment of the present invention, the
The
That is, the
A first handle 227-1 is formed at an end of the first
A second handle 229-1 is formed at the end of the second
A first through hole 224-1 through which the first
A second through hole 224-2 through which the second
In the process of mounting the
The
The
The
FIG. 5 is a perspective view showing the vertical torque portion of FIG. 1, and FIG. 6 is an exploded perspective view of FIG.
The
The fixed
The
The inner
An
The inner
A clamping
7 is a cross-sectional view showing the clamping member of Fig.
FIG. 7A is an exploded view of the clamping member, FIG. 7B shows a state before the clamping member grasps the center rod, and FIG. 7C shows a state in which the clamping member has the center rod.
The clamping
The tightening
The first and second
The clamping
So that the clamping
A cut-away
The cut-away
On the other hand, the
A threading
The bead-and-
When the operator rotates the
Thus, the seaming and descending
A
8 is a perspective view showing the one-way rotary member of Fig.
Fig. 8 (a) is an exploded perspective view of the one-way rotary member, Fig. 8 (b) is a schematic cross-sectional view showing a case in which the outer cylindrical portion of the unidirectional rotary member is rotated in one direction, Fig. 5 is a schematic cross-sectional view showing the case where the outer cylindrical portion of the rotor is rotated in the other direction.
The one-
The outer
That is, the
When the outer
When the outer
Through this one-
A
When the outer
In this state, when the
When the
The rotation of the
The
Fig. 9 is a schematic view showing the contact member of Fig. 6;
The
9 (a) shows the first contact member 418-1, and Fig. 9 (b) shows the second contact member 418-2.
The first contact member 418-1 includes a first upper contact portion 418-1a having a male screw thread 418-1b formed at the lower portion thereof and a female screw thread 418-1d coupled to the male screw thread 418-1b Includes a first lower contact portion 418-1c formed in the upper groove.
In the first contact member 418-1 having the above-described structure, when the male thread 418-1b and the female thread 418-1d are engaged with each other, the first lower contact portion 418-1c contacts the first upper contact portion 418-1a.
The direction in which the male thread 418-1b and the female thread 418-1d are engaged with each other is formed so that the first lower contact portion 418-1c is rotated in the other direction, (418-1c) is not loosened at the first upper contact portion (418-1a).
The first lower contact portion 418-1c may be formed in various shapes depending on the shape of the
Accordingly, only the first lower contact portion 418-1c can be used in accordance with the shape of the
The second contact member 418-2 includes a second upper contact portion 418-2a formed at a lower portion with a recessed groove 418-2b in the horizontal direction, A hole 418-2d is formed in the second lower contact portion 418-2c formed on the side wall of the upper groove and a fastening pin 418-2b inserted into the through hole 418-2b and the through hole 418-2d, 2e.
The second contact member 418-2 having the above-described configuration is formed by inserting the second upper contact portion 418-2a and the second lower contact portion 418-2c into the inlet groove 418-2b and the through hole 418-2b, The second upper contact portion 418-2a and the second lower contact portion 418-2a are positioned so that the fastening pins 418-2e and 418-2d are positioned so as to be positioned in the inlet groove 418-2b and the through hole 418-2d, The contact portions 418-2c are engaged.
The second lower contact portion 418-2c may be formed in various shapes in accordance with the shape of the
Accordingly, only the second lower contact portion 418-2c can be used in accordance with the shape of the
5 and 6, the movement
A
5 shows a state in which the linking portion 359-1 is engaged in the load
The interlocking portion 359-1 is a bearing structure that is rotated about a
The motion
1, the
A
The
The
The hydraulic
Meanwhile, the
In the
The operation of the
After the process of fixing the
Then, the
When the
Then, the operating
In this state, the
A load is measured on the
The
The load when the
10 is a graph showing the load measured in the load cell.
The torque load acting on the
The load measured by the
That is, as shown in FIG. 10, in the result graph of the
These results are compared with the reference load that indicates the adequacy of the welding condition already set in the
That is, when the magnitude of f1 is less than the reference load, the
According to the present invention, the degree of damage of the welded state of the
11 is a perspective view showing a first modification of the embodiment of the present invention.
The first modification of the present invention will be described focusing on differences from the embodiment.
The first modification of the present invention includes a
The
The use of the
The
Accordingly, the present invention can improve the ease of use of the torque tester by observing the progress of the torque tester through a photograph before the weld portion of the
On the other hand, Fig. 12 is a perspective view showing a second modification of the embodiment of the present invention.
The second modification of the present invention will be described focusing on differences from the embodiment.
12, the inner
The
The
The
A
The
The
A
On the upper surface of the ascending / descending
A
On the upper surface of the left and right moving
First and
The operation according to the second modification of the present invention proceeds as follows.
When the user rotates the
A
13 is a schematic front view showing a third modification of the embodiment of the present invention in which the base of Fig. 12 is viewed in the x-axis direction.
The third modification of the present invention is a modification of the second modification, which is different from the second modification.
The third modification of the present invention is a modification of the third embodiment of the present invention in which the
The
In the third modification of the present invention, the first and
It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. . Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.
100: torque tester device 110: test piece
200: expectation part 220: jig
222: concave groove 226: first fixing member
227: first gap adjusting member 229: second gap adjusting member
230: Guide rod 240: Expectation
300: test manipulation part 310: vertical torque part
312: fixed cylinder part 320: inner cylinder part
330: center rod 340: one-way rotating member
350: a moving direction switching member 360:
370: cylinder portion 390: hydraulic pressure supply portion
400: table part 500: tester management part
Claims (14)
A vertical torque portion formed to be seated on the test piece above the jig,
A load transmitting portion formed to generate a rotational force in the vertical torque portion,
A cylinder portion for transmitting a force to the load transmission portion,
A tester management unit configured to receive the load information measured by the load transmission unit,
And,
The load transfer unit measures a change in load until the welded portion of the test piece is broken while the vertical torque unit is rotated, and transfers the measured load variation to the tester management unit.
The vertical torque portion
A fixed cylindrical portion formed in a cylindrical shape,
And an inner cylindrical portion formed to penetrate through the inside of the fixed cylindrical portion and configured to rotate separately from the fixed cylindrical portion.
Wherein the inner cylindrical portion is rotatable independently of the fixed cylindrical portion by a bearing member.
The vertical torque portion
Further comprising a center bar formed to be positioned through the inside of the inner cylindrical portion,
Wherein the inner cylindrical portion further comprises a clamping member formed to catch or release the center bar.
A rising and falling substrate formed to move the jig vertically,
Further comprising: a movable substrate formed to move the jig in a lateral direction or a backward direction,
Wherein the elevating substrate and the moving substrate are moved by a driving gear and a driven gear or moved by a cylinder portion.
Further comprising a motion direction switching member formed to be coupled to the inner cylindrical portion and configured to convert a linear motion transmitted from the load transmission portion into a rotational motion.
Further comprising a one-way rotating member coupled to a lower portion of the center bar.
The inner cylindrical portion has an upper outer periphery formed in an angular shape,
And the motion direction switching member is formed with an angled hole that is engaged with the angular outer circumference.
The one-
An inner cylindrical portion whose periphery is formed in a circular shape,
An outer cylindrical portion formed to surround the outer periphery of the inner cylindrical portion,
And a cam bearing portion formed between the inner cylindrical portion and the outer cylindrical portion,
Wherein the outer cylindrical portion is rotated only in one direction around the inner cylindrical portion by the cam bearing portion.
Wherein the motion direction switching member is formed with a load transmission connection portion formed to be coupled with the load transmission portion, and the load transmission connection portion is formed with a bearing-type interlocking portion.
The load transfer part
A horizontal moving member having an interlocking movement space in which the interlocking portion is located;
And a load sensing member having one side connected to the horizontal moving member and the other side connected to the cylinder portion.
And a guide rail is formed on a lower portion of the horizontally moving member.
The jig
A body having a concave groove on which the test piece base material is seated,
A fixing member formed on the concave groove and
Wherein the fixing member comprises a gap adjusting member
Wherein the torque tester comprises:
Further comprising a camera unit configured to photograph a test piece fixed to the jig.
Wherein the tester management unit is in the form of a touch monitor or a general monitor, and a voice support unit is formed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20150083993 | 2015-06-15 | ||
| KR1020150083993 | 2015-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101640182B1 true KR101640182B1 (en) | 2016-07-18 |
Family
ID=56679784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160003732A KR101640182B1 (en) | 2015-06-15 | 2016-01-12 | Torque Tester Device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101640182B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101835999B1 (en) | 2016-10-27 | 2018-03-08 | 국방과학연구소 | Contacted surfaces inspection device and method of deep optical contacted microchip for laser |
| CN108534941A (en) * | 2018-06-15 | 2018-09-14 | 舜宇光学(中山)有限公司 | A kind of torque detection system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980039181A (en) | 1996-11-27 | 1998-08-17 | 박병재 | Torque measurement aid of wrench bolt |
| JP2000097827A (en) * | 1998-09-28 | 2000-04-07 | Sony Corp | Torsion tester |
| KR20070117157A (en) * | 2006-06-07 | 2007-12-12 | 주식회사 포스코 | Method for evaluating fatigue failure of welding structure |
| KR101413099B1 (en) * | 2013-04-12 | 2014-07-01 | 주식회사 포스코 | Welded pipe testing device and testing method |
| KR101447964B1 (en) * | 2013-06-27 | 2014-10-13 | 일륭기공(주) | Torsion strength testing device |
-
2016
- 2016-01-12 KR KR1020160003732A patent/KR101640182B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980039181A (en) | 1996-11-27 | 1998-08-17 | 박병재 | Torque measurement aid of wrench bolt |
| JP2000097827A (en) * | 1998-09-28 | 2000-04-07 | Sony Corp | Torsion tester |
| KR20070117157A (en) * | 2006-06-07 | 2007-12-12 | 주식회사 포스코 | Method for evaluating fatigue failure of welding structure |
| KR101413099B1 (en) * | 2013-04-12 | 2014-07-01 | 주식회사 포스코 | Welded pipe testing device and testing method |
| KR101447964B1 (en) * | 2013-06-27 | 2014-10-13 | 일륭기공(주) | Torsion strength testing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101835999B1 (en) | 2016-10-27 | 2018-03-08 | 국방과학연구소 | Contacted surfaces inspection device and method of deep optical contacted microchip for laser |
| CN108534941A (en) * | 2018-06-15 | 2018-09-14 | 舜宇光学(中山)有限公司 | A kind of torque detection system |
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