[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

KR20120050014A - Method of measuring a length of sections of extrados or intrados curves of an elongated workpiece, and relevant length measuring instrument - Google Patents

Method of measuring a length of sections of extrados or intrados curves of an elongated workpiece, and relevant length measuring instrument Download PDF

Info

Publication number
KR20120050014A
KR20120050014A KR1020100111308A KR20100111308A KR20120050014A KR 20120050014 A KR20120050014 A KR 20120050014A KR 1020100111308 A KR1020100111308 A KR 1020100111308A KR 20100111308 A KR20100111308 A KR 20100111308A KR 20120050014 A KR20120050014 A KR 20120050014A
Authority
KR
South Korea
Prior art keywords
length
measuring device
length measuring
elongated workpiece
bending
Prior art date
Application number
KR1020100111308A
Other languages
Korean (ko)
Inventor
알레싼드로 카포루쏘
실비오 레아
Original Assignee
씨엠엘 인터내셔널 에스. 피. 에이.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 씨엠엘 인터내셔널 에스. 피. 에이. filed Critical 씨엠엘 인터내셔널 에스. 피. 에이.
Priority to KR1020100111308A priority Critical patent/KR20120050014A/en
Publication of KR20120050014A publication Critical patent/KR20120050014A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • B21D7/028—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and altering the profile at the same time, e.g. forming bumpers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B11/046—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G01B5/0004—Supports
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/04—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B5/043—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/04—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B7/048—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: A method and a device for measuring a length of sections of extrados or intrados curves of an elongated work piece are provided to accurately measure a length of sections of extrados or intrados curves of an elongated work piece in bending operation. CONSTITUTION: A method for measuring a length is as follows. An elongated work piece comprises section respectively separated by a neutral axis in both portions of an extended portion and compressed portion when a work piece is bent and a neutral section processed a bending operation and the bending operation of the elongated work piece is started along a transferring direction by getting out of the neutral section. A length measuring device is arranged to be interlocked with an extrados or intrados portion of the elongated work piece around the neutral section when measuring a length of the work piece and moves toward the transferring direction of the work piece from the neutral section.

Description

가늘고 긴 가공품의 겉둘레 또는 안둘레 곡면 부분의 길이를 측정하는 방법과, 그 길이 측정장치{METHOD OF MEASURING A LENGTH OF SECTIONS OF EXTRADOS OR INTRADOS CURVES OF AN ELONGATED WORKPIECE, AND RELEVANT LENGTH MEASURING INSTRUMENT}METHOD OF MEASURING A LENGTH OF SECTIONS OF EXTRADOS OR INTRADOS CURVES OF AN ELONGATED WORKPIECE, AND RELEVANT LENGTH MEASURING INSTRUMENT}

본 발명은, 가늘고 긴 가공품의 겉둘레 및 안둘레 곡면 부분의 길이를 측정하는 방법에 관한 것이다. 더구나, 본 발명은, 이하에서는 일례로서 각추형 벤딩머신에 장착되는 인코더에 해당하는 측정장치에 관한 것이다. 물론, 본 발명은, 각추형 벤딩머신과 다른 파이프 벤딩장치 상에서도 구현될 수 있다는 것은 자명하다.
The present invention relates to a method for measuring the length of the outer and inner circumferential portions of an elongated workpiece. Furthermore, the present invention relates to a measuring device corresponding to an encoder mounted on a pyramidal bending machine as an example below. Of course, it is obvious that the present invention can also be implemented on pyramidal bending machines and other pipe bending devices.

예를 들면, 다양한 반경의 굴곡부 또는 일반적으로는 변동하는 반경의 굴곡 부분에 의해 이격된 고정된 반경 부분을 얻기 위해 변화하는 곡률 반경에 따라 가늘고 긴 가공품을 절곡해야 하고, 이와 같은 가늘고 긴 가공품이 이 가늘고 긴 가공품을 그 위에서 조정해야 하는 기존의 외곽선이나 외형을 정확히 복제해야 할 때, 절곡 부분들이 가능한한 정확한 길이의 치수를 갖는 것이 중요하다. 절곡하고자 하는 파이프를 따라 벤딩머신 내부의 대칭점, 즉 변형 로울러의 축의 연장선에 배치되는 접촉 길이 측정장치, 일반적으로는 인코더가 현재 사용되고 있다. 그러나, 벤딩 응력이 가해졌을 때 파이프의 이와 같은 대칭 단면은 변형되지 않는다.For example, long and thin workpieces must be bent in accordance with varying radii of curvature in order to obtain a fixed radius portion spaced by various radii of curvature or generally fluctuating segments of varying radii. When it is necessary to accurately duplicate existing contours or contours that require the elongated workpiece to be adjusted on top of it, it is important that the bends have dimensions of the correct length as possible. Contact length measuring devices, generally encoders, which are arranged at symmetry points inside the bending machine along the pipe to bend, ie at the extension of the axis of the deformation roller, are generally used. However, this symmetrical cross section of the pipe does not deform when bending stress is applied.

공지된 것과 같이, 절곡하고자 하는 파이프나 기타의 강철 단편 등의 가늘고 긴 가공품은, 이와 같은 대칭 또는 중립(neutral) 단면과 다른 단면에서는 생 베낭(Saint-Venant) 고체에 해당한다. 이때, 생 배낭 고체의 단면은 중립축(neutral axis)으로 불리는 분리선에 의해 2개의 부분으로 나뉘는데, 이들 중 한 부분은 벤딩작업 중에 외부에서 가해지는 벤딩 응력에 의해 신장되고 나머지 한 부분은 압축된다. 따라서, 벤딩에 의해 발생된 연신으로 인해 겉둘레가 안둘레보다 큰 길이를 갖게 되는 일이 일어난다. 가늘고 긴 가공품의 높이를 증가시키고 곡률 반경을 감소시키면 이와 같은 연신이 증가하며, 가늘고 긴 가공품의 벤딩이 행해지는 속도에도 의존한다.As is known, elongated workpieces, such as pipes or other steel segments, to be bent, correspond to Saint-Venant solids in cross sections other than this symmetrical or neutral cross section. At this time, the cross section of the raw backpack solid is divided into two parts by a dividing line called the neutral axis, one of which is elongated by the bending stress applied externally during the bending operation and the other is compressed. Thus, the stretching caused by bending causes the outer circumference to have a greater length than the inner circumference. Increasing the height of the elongate workpiece and decreasing the radius of curvature increases this draw and also depends on the speed at which the elongate workpiece is bent.

최종적으로, 벤딩 작업을 제어하기 위해 레이저 수단 등의 가장 정교한 수단이 사용되더라도, 벤딩이 행해지고 있는 벤딩 부분과 평면에서의 이 벤딩 부분의 연장선에서의 파이프의 거동을 매 순간 검사하는 것이 중요하다. 이에 따르면, 제조된 가공품이 예상과 맞아떨어지지 않는 문제가 덜 빈번하게 일어나게 된다.
Finally, even if the most sophisticated means such as laser means are used to control the bending operation, it is important to inspect the behavior of the pipe at every moment in the bending line where the bending is being performed and the extension of this bending portion in the plane. According to this, the problem that the manufactured workpieces do not meet the expectations is less frequent.

결국, 본 발명의 주된 목적은, 원하는 겉둘레 및 안둘레의 치수에 대해, 벤딩작업 중에 가늘고 긴 가공품의 절곡 부분의 선 길이를 가능한한 정밀하게 측정함에 있다.After all, the main object of the present invention is to measure, as precisely as possible, the line length of the bent portion of an elongated workpiece during the bending operation, with respect to the desired outer and inner dimensions.

본 발명의 또 다른 목적은, 장치 내에서의 가공품의 변형점에 가능한한 근접하게 가늘고 긴 가공품의 선형 측정을 수행함에 있다.
It is a further object of the present invention to carry out a linear measurement of an elongate workpiece as close as possible to the strain point of the workpiece within the device.

따라서, 제 1 국면에서, 본 발명은, 이송 방향을 따라 벤딩머신 내부에서 이동하는 가늘고 긴 가공품의 겉둘레 또는 안둘레 곡면의 부분의 길이를 측정하는 방법으로서, 상기 가늘고 긴 가공품은, 상기 가늘고 긴 가공품이 벤딩을 겪을 때 신장된 부분과 압축된 부분 모두에서 중립축에 의해 각각 분리되는 단면들과, 적어도 벤딩을 겪지 않는 중립 단면을 갖고, 상기 중립 단면을 벗어나 상기 가늘고 긴 가공품의 벤딩이 가공품의 이송 방향을 따라 개시하는 길이 측정방법에 있어서, 측정시에, 상기 중립 단면 근처에서 상기 가늘고 긴 가공품의 겉둘레 또는 안둘레 지점과 맞물리도록 배치되고 상기 중립 단면으로부터 상기 가늘고 긴 가공품의 이송 방향으로 변위된 길이 측정장치에 의해, 상기 길이 측정이 행해지는 길이 측정방법을 제공한다.Accordingly, in a first aspect, the present invention provides a method for measuring the length of an outer circumferential or inner circumferential portion of an elongated workpiece moving inside a bending machine along a conveying direction, wherein the elongated workpiece is the elongated workpiece. When the workpiece undergoes bending, the sections of the elongated and compressed sections, respectively, separated by the neutral axis and at least a neutral cross section that does not undergo bending, the bending of the elongate workpiece beyond the neutral cross section results in the transfer of the workpiece. A length measuring method starting along a direction, said measuring method being arranged so as to be engaged with an outer circumference or an inner circumference point of said elongated workpiece near said neutral cross section and displaced from said neutral cross section in a conveying direction of said elongate workpiece. By the length measuring apparatus, the length measuring method in which the said length measurement is performed is provided.

제 2 국면에서, 본 발명은, 가늘고 긴 가공품의 이송 방향을 따라, 이동가능한 상부의 변형 로울러와 적어도 한쌍의 하부의 입구 및 출구 구동 로울러를 갖는 대칭적인 각추형 로울러 벤딩머신 내부에서 이동하는 가늘고 긴 가공품의 겉둘레 또는 안둘레 곡면의 부분의 길이를 측정한 길이 측정장치로서, 상기 벤딩머신의 중앙 대칭축이 벤딩을 겪지 않는 중립 단면의 궤적(trace)인 길이 측정장치에 있어서, 상기 길이 측정장치가, 측정시에, 상기 벤딩머신의 상기 대칭축을 벗어나 상기 하부의 출구 구동 로울러를 향해 상기 가늘고 긴 가공품의 겉둘레 또는 안둘레 지점과 맞물리도록 배치된 길이 측정장치를 제공한다.
In a second aspect, the present invention is directed to an elongated tapered roller bending machine having a movable upper deformed roller and at least a pair of lower inlet and outlet drive rollers along the conveying direction of the elongated workpiece. A length measuring device measuring the length of a portion of an outer circumference or an inner circumference of a workpiece, wherein the length measuring device is a length measuring device in which the central symmetry axis of the bending machine is a trace of a neutral cross section without bending. And, during measurement, a length measuring device arranged to engage the outer or inner circumference of the elongated workpiece toward the lower outlet driving roller beyond the axis of symmetry of the bending machine.

이하, 다음의 첨부도면과 관련하여 주어지는 바람직한 실시예를 참조하여 본 발명을 상세히 설명한다:
도 1은 본 발명의 일 실시예에 따른 가늘고 긴 가공품의 선형 측정방법이 구현되는 장치의 측면도를 모식적이면서 부분적으로 나타낸 것이다.
도 2는 본 발명에 따른 방법을 구현하기 위해 가늘고 긴 가공품을 부가한 도 1의 장치를 나타낸 것이다.Hereinafter, the present invention will be described in detail with reference to the preferred embodiments given in connection with the following accompanying drawings:
1 is a side view schematically and partially illustrating a device in which a linear measuring method of an elongated workpiece according to an embodiment of the present invention is implemented.
2 shows the device of FIG. 1 with the addition of an elongated workpiece to implement the method according to the invention.

첨부도면을 참조하면, 본 발명이 일례로서 구현되는 장치는, 대칭적인 각추형 벤딩머신으로서, 3개의 구동 로울러 1, 2 및 3의 세트를 구비하고, 이들 구동 로울러들 중에서 적어도 1개는 3개의 구동 로울러 1, 2 및 3의 세트를 통해 화살표 F의 방향으로 이송되는 절곡하고자 하는 가늘고 긴 가공품, 예를 들어 파이프 T를 변형하는 변형 로울러이다. 간략을 기하기 위해, 하부 로울러들 2 및 3은 그들 자신의 위치에 고정되고, 상부 로울러(1)는 각각의 수직 위치에서 조정이 가능하고 피드백 제어에 따라 수직 방향으로 이동하도록 벤딩머신에 의해 제어될 수 있다. 구동 로울러 1, 2 및 3의 세트를 통한 파이프 T의 공급을 측정하는 인코더를 참조번호 4로 표시한다. 인코더(4)는, 본 명세서에서 도시하지 않고 설명도 하지 않는 다른 부품과 마찬가지로, 벤딩머신의 작동을 관리하는 제어 시스템의 일부이다.Referring to the accompanying drawings, an apparatus in which the present invention is implemented as an example includes a set of three drive rollers 1, 2 and 3 as symmetrical pyramidal bending machines, at least one of which is three It is a deformation roller that deforms an elongated workpiece to be bent, for example pipe T, which is to be conveyed in the direction of arrow F through a set of drive rollers 1, 2 and 3. For the sake of simplicity, the lower rollers 2 and 3 are fixed in their own positions, and the upper rollers 1 are adjustable in their respective vertical positions and controlled by the bending machine to move in the vertical direction under feedback control. Can be. The encoder for measuring the supply of pipe T through a set of drive rollers 1, 2 and 3 is indicated by reference numeral 4. The encoder 4 is part of a control system that manages the operation of the bending machine, like other parts not shown and described herein.

본 발명의 방법에 따르면, 인코더(4)는, 화살표 F로 정의한 가늘고 긴 가공품의 이동 방향에 의존하여, 이동가능한 상부의 변형 로울러(1)와 한쌍의 하부의 입구 및 출구 로울러 2 및 3을 사용하여 대칭적인 각추형 로울러 머신 내부에서 이동하는 동안, 가늘고 긴 가공품 T의 겉둘레 곡면의 부분을 측정하는 길이 측정장치에 해당한다. 축 y는, 벤딩머신의 중앙의 대칭축이며, 벤딩 응력을 겪지 않는 중립의 단면 Sn의 궤적에 해당한다. 이와 같은 이유로 인해, 인코더(4)는, 그것이 축방향으로 배치되더라도, 벤딩머신의 대칭축 y를 벗어나 하부의 출구 구동 로울러(3)를 향해 가늘고 긴 가공품의 겉둘레의 지점과 맞물리도록 배치된 검출 휠(detection wheel)(5)을 갖는다.According to the method of the present invention, the encoder 4 uses a movable upper deformation roller 1 and a pair of lower inlet and outlet rollers 2 and 3, depending on the direction of movement of the elongated workpiece defined by arrow F. This corresponds to a length measuring device that measures the part of the circumferential surface of the long workpiece T while moving inside the symmetric pyramidal roller machine. The axis y is the axis of symmetry of the center of the bending machine and corresponds to the trajectory of the neutral cross section Sn which does not experience bending stress. For this reason, the encoder 4 is arranged such that, even if it is arranged in the axial direction, the detection wheel is arranged to engage the point of the outer circumference of the elongated workpiece toward the lower exit drive roller 3, even though it is arranged in the axial direction. (detection wheel) (5).

인코더의 도움으로, 개별적인 부분들의 길이 및 반경과 평면 내에서의 그것의 배치를 참조하여 원하는대로 가공품의 겉둘레 곡면의 부분을 재현할 수 있다.With the aid of the encoder, one can reproduce the part of the outer circumferential surface of the workpiece as desired with reference to the length and radius of the individual parts and its placement in the plane.

도시하지는 않았지만, 필요에 따라 인코더는 가늘고 긴 가공품의 안둘레의 지점에 맞물리도록 배치될 수도 있다.Although not shown, the encoder may be arranged to engage the point of the inner circumference of the elongated workpiece as needed.

이 인코더에 대한 대안으로서, 상기 측정장치는 레이저 길이 측정장치일 수 있다.As an alternative to this encoder, the measuring device may be a laser length measuring device.

본 발명은 전술한 실시예에 한정되지 않으며, 본 발명의 방법이 적용될 수 있는 다른 벤딩머신에서도 구현될 수 있다는 것은 자명하다.It is apparent that the present invention is not limited to the above-described embodiments, and may be implemented in other bending machines to which the method of the present invention can be applied.

Claims (4)

이송 방향을 따라 벤딩머신 내부에서 이동하는 가늘고 긴 가공품의 겉둘레 또는 안둘레 곡면의 부분의 길이를 측정하는 방법으로서, 상기 가늘고 긴 가공품은, 상기 가늘고 긴 가공품이 벤딩을 겪을 때 신장된 부분과 압축된 부분 모두에서 중립축에 의해 각각 분리되는 단면들과, 적어도 벤딩을 겪지 않는 중립 단면을 갖고, 상기 중립 단면을 벗어나 상기 가늘고 긴 가공품의 벤딩이 가공품의 이송 방향을 따라 개시하는 길이 측정방법에 있어서,
측정시에, 상기 중립 단면 근처에서 상기 가늘고 긴 가공품의 겉둘레 또는 안둘레 지점과 맞물리도록 배치되고 상기 중립 단면으로부터 상기 가늘고 긴 가공품의 이송 방향으로 변위된 길이 측정장치에 의해, 상기 길이 측정이 행해지는 것을 특징으로 하는 길이 측정방법.
A method of measuring the length of an outer or circumferential part of an elongated workpiece moving inside a bending machine along a conveying direction, wherein the elongated workpiece is one that is stretched and compressed when the elongated workpiece undergoes bending. In the length measuring method having the cross sections respectively separated by the neutral axis in all the sections and at least the neutral cross section which does not experience bending, the bending of the elongate workpiece off the neutral cross section starts along the conveying direction of the workpiece,
In the measurement, the length measurement is performed by a length measuring device arranged to engage the outer or inner circumference of the elongated workpiece near the neutral cross section and displaced in the conveying direction of the elongated workpiece from the neutral cross section. Length measuring method characterized in that.
가늘고 긴 가공품의 이송 방향을 따라, 이동가능한 상부의 변형 로울러와 적어도 한쌍의 하부의 입구 및 출구 구동 로울러를 갖는 대칭적인 각추형 로울러 벤딩머신 내부에서 이동하는 가늘고 긴 가공품의 겉둘레 또는 안둘레 곡면의 부분의 길이를 측정한 길이 측정장치로서, 상기 벤딩머신의 중앙 대칭축이 벤딩을 겪지 않는 중립 단면의 궤적인 길이 측정장치에 있어서,
상기 길이 측정장치가, 측정시에, 상기 벤딩머신의 상기 대칭축을 벗어나 상기 하부의 출구 구동 로울러를 향해 상기 가늘고 긴 가공품의 겉둘레 또는 안둘레 지점과 맞물리도록 배치된 것을 특징으로 하는 길이 측정장치.
Along the conveying direction of the elongated workpiece, the outer or circumferential surface of the elongated workpiece moving inside the symmetrical pyramid roller bending machine with a movable upper deformable roller and at least a pair of lower inlet and outlet drive rollers A length measuring device which measures the length of a part, wherein in the locus length measuring device of a neutral cross section in which the central symmetry axis of the bending machine does not experience bending,
And the length measuring device is arranged so as to engage the outer or inner circumference of the elongated workpiece toward the lower outlet driving roller at the time of measurement, out of the axis of symmetry of the bending machine.
제 2항에 있어서,
상기 길이 측정장치가 인코더인 것을 특징으로 하는 길이 측정장치.
The method of claim 2,
Length measuring device, characterized in that the length measuring device is an encoder.
제 2항에 있어서,
상기 길이 측정장치가 레이저 측정장치인 것을 특징으로 하는 길이 측정장치.The method of claim 2,
Length measuring device characterized in that the length measuring device is a laser measuring device.
KR1020100111308A 2010-11-10 2010-11-10 Method of measuring a length of sections of extrados or intrados curves of an elongated workpiece, and relevant length measuring instrument KR20120050014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100111308A KR20120050014A (en) 2010-11-10 2010-11-10 Method of measuring a length of sections of extrados or intrados curves of an elongated workpiece, and relevant length measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100111308A KR20120050014A (en) 2010-11-10 2010-11-10 Method of measuring a length of sections of extrados or intrados curves of an elongated workpiece, and relevant length measuring instrument

Publications (1)

Publication Number Publication Date
KR20120050014A true KR20120050014A (en) 2012-05-18

Family

ID=46267587

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100111308A KR20120050014A (en) 2010-11-10 2010-11-10 Method of measuring a length of sections of extrados or intrados curves of an elongated workpiece, and relevant length measuring instrument

Country Status (1)

Country Link
KR (1) KR20120050014A (en)

Similar Documents

Publication Publication Date Title
CN101229569B (en) Method and equipment for detecting and remedying magnesium alloy shapes torsion
RU2010118060A (en) MACHINE FOR CONTINUOUS FLEXIBILITY OF EXTENDED WORK WITH PRESET RADIUS
CN204769996U (en) Coalignment
JP5274847B2 (en) Method and apparatus for measuring the straightness of long products
RU2443972C1 (en) Method to measure length of rounding sections of convex surface or concave surface of lengthy billet and appropriate tool for length measurement
JP2011511712A (en) Method for inspecting and controlling a roll bending machine that continuously bends elongated workpieces with various radii of curvature, and a machine so controlled
RU2014141509A (en) METAL STRIP EDITING DEVICE
CN110446569A (en) Multifunctional process equipment
CN114965020B (en) Bending stiffness testing device and submarine cable bending stiffness testing method
KR20180063488A (en) Automatically manufacturing device of inner ring for coil packaging
KR20120050014A (en) Method of measuring a length of sections of extrados or intrados curves of an elongated workpiece, and relevant length measuring instrument
KR20200067390A (en) Apparatus for bending cable
KR20170045689A (en) auto straightening equipments and method for metal rod
Schmitt et al. On the Origin of Specimen: load-adapted integral sheet metal products
CN107116115A (en) A kind of sigmoid curve bend pipe process equipment
US10137488B2 (en) Device and method for leveling a metal plate
CN103861915B (en) Range sensor is rolled and the U-shaped crooking of the tubes technique of pressurize sizing with bending
CN104801632B (en) The transmit electric power bending apparatus with cable and bending method thereof with spray-painting plant
CN103817265B (en) Use the stove silk bending process of hydraulic cylinder type horizontal driver and crooked force sensor
CN208688421U (en) Idler pipe automatic detecting machine bed
CN103769502B (en) Use crooked force sensor and the stove silk bending process of heat-treating
CN104772377B (en) Complex profile induction stretch bending method with displacement probes
CN106166565A (en) Tensioner for rolling equipment
JP2021021694A (en) Pantograph impact measuring device for trolley wire connection portion
SU592481A1 (en) Tube-bending arrangement

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application