[go: up one dir, main page]

KR100706299B1 - Limiter for elastic center equipment with pressure input measurement sensor - Google Patents

Limiter for elastic center equipment with pressure input measurement sensor Download PDF

Info

Publication number
KR100706299B1
KR100706299B1 KR1020060056213A KR20060056213A KR100706299B1 KR 100706299 B1 KR100706299 B1 KR 100706299B1 KR 1020060056213 A KR1020060056213 A KR 1020060056213A KR 20060056213 A KR20060056213 A KR 20060056213A KR 100706299 B1 KR100706299 B1 KR 100706299B1
Authority
KR
South Korea
Prior art keywords
pressure input
limiter
elastic
measurement sensor
elastic center
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
KR1020060056213A
Other languages
Korean (ko)
Inventor
주상완
Original Assignee
주상완
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
Priority to KR1020060056213A priority Critical patent/KR100706299B1/en
Application filed by 주상완 filed Critical 주상완
Publication of KR100706299B1 publication Critical patent/KR100706299B1/en
Application granted granted Critical
Priority to EP07252457A priority patent/EP1867429B1/en
Priority to JP2007159564A priority patent/JP5142600B2/en
Priority to AT07252457T priority patent/ATE506141T1/en
Priority to US11/763,641 priority patent/US7748136B2/en
Priority to DE602007013969T priority patent/DE602007013969D1/en
Priority to US11/766,590 priority patent/US7421799B2/en
Priority to JP2007164199A priority patent/JP5201888B2/en
Priority to EP07252557A priority patent/EP1870197B1/en
Priority to AT07252557T priority patent/ATE491544T1/en
Priority to DE602007011155T priority patent/DE602007011155D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/18Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
    • B23Q3/183Centering devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/026Chucks the radial or angular position of the tool being adjustable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/08Chucks holding tools yieldably
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B49/00Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/04Devices for boring or drilling centre holes in workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/002Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
    • B23Q17/005Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0952Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
    • B23Q17/0966Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining by measuring a force on parts of the machine other than a motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

본 발명은 압입력측정센서가 부착된 탄성중심기기용 리미터에 관한 것으로서, 더욱 상세하게는 리미터의 일측에 압입력측정센서를 부착하여, 상기 리미터에 작용하는 압입력에 의한 반발력으로 상기 리미터의 변화율을 측정하고, 이를 통해 압입력을 산출함으로써, 압입력 측정이 가능하며, 더불어 간단한 구성에 의한 제조단가의 하락으로 제품경쟁력을 강화하는 압입력측정센서가 부착된 탄성중심기기용 리미터에 관한 것이다.The present invention relates to a limiter for an elastic core device with a pressure input measurement sensor, and more particularly, a pressure input measurement sensor is attached to one side of the limiter, and the rate of change of the limiter by the repulsive force due to the pressure input acting on the limiter. By measuring the pressure input through this, it is possible to measure the pressure input, and also relates to a limiter for the elastic core device with a pressure input measuring sensor is attached to the pressure input measuring sensor to enhance the product competitiveness by the reduction in manufacturing cost by a simple configuration.

이를 위해 본 발명의 압입력측정센서가 부착된 탄성중심기기용 리미터는 상, 하부지지체와, 상기 상, 하부지지체 사이에 다수의 탄성체 및 리미터가 구성되어, 탄성중심원리에 의해 순수한 병진운동으로 보스와 축 사이의 중심오차를 보정하는 압입용 탄성중심기기에 있어서, 상기 리미터의 일측에 압입력측정센서(40)를 부착하여, 상기 리미터에 작용하는 압입력에 의한 변화율을 측정하고, 이를 통해 압입력을 산출하도록 구성되는 것을 특징으로 한다.To this end, the limiter for an elastic center device with a pressure input measuring sensor according to the present invention comprises a plurality of elastic bodies and limiters between the upper and lower supporters, and the upper and lower supporters. In the press-fit elastic center device for correcting the central error between the axis and the axis, the pressure input measurement sensor 40 is attached to one side of the limiter, and measures the rate of change by the pressure input acting on the limiter, And to calculate an input.

압입력 측정, 하중 측정용 탄성중심기기, 압입 측정장치 Press-fit measurement, elastic center for load measurement, press-fit measuring device

Description

압입력측정센서가 부착된 탄성중심기기용 리미터{Strain Sensor Embedded Remote Center Compliance Device of limiter}Strain Sensor Embedded Remote Center Compliance Device of limiter with Pressure Input Measuring Sensor

도 1은 종래의 압입장치의 개략도.1 is a schematic view of a conventional indentation apparatus.

도 2는 종래의 탄성중심기기와 로드셀이 구성된 압입장치의 개략도.Figure 2 is a schematic diagram of a press-fit device configured with a conventional elastic center device and a load cell.

도 3은 도2의 탄성중심기기와 로드셀의 결합구성의 확대도.Figure 3 is an enlarged view of a coupling configuration of the elastic center device and the load cell of Figure 2;

도 4는 본 발명에 따른 리미터에 압입력측정센서가 부착된 탄성중심기기의 조립 단면도.Figure 4 is an assembled cross-sectional view of the elastic center unit with a pressure input measuring sensor attached to the limiter according to the present invention.

도 5는 도 4에서 탄성중심기기에 압입력이 작용할 경우 리미터의 변화율을 도시한 단면도.5 is a cross-sectional view showing the rate of change of the limiter when the pressure input acts on the elastic center device in FIG.

도 6은 다른 실시 예에 따른 리미터의 사시도.6 is a perspective view of a limiter according to another embodiment.

도 7은 또 다른 실시 예에 따른 리미터의 사시도이다.7 is a perspective view of a limiter according to another embodiment.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10a : 탄성중심기기 12 : 상부지지체10a: elastic center device 12: upper support

14 : 하부지지체 16 : 탄성체14 lower support 16 elastic body

20, 20a, 20b : 리미터 22 : 평면20, 20a, 20b: limiter 22: flat

24 : 노치공 30 : 압입력측정센서24: notch hole 30: pressure input measuring sensor

본 발명은 압입력측정센서가 부착된 탄성중심기기용 리미터에 관한 것으로서, 더욱 상세하게는 리미터의 일측에 압입력측정센서를 부착하여, 상기 리미터에 작용하는 압입력에 의한 반발력으로 상기 리미터의 변화율을 측정하고, 이를 통해 압입력을 산출함으로써, 압입력 측정이 가능하며, 더불어 간단한 구성에 의한 제조단가의 하락으로 제품경쟁력을 강화하는 압입력측정센서가 부착된 탄성중심기기용 리미터에 관한 것이다.The present invention relates to a limiter for an elastic core device with a pressure input measurement sensor, and more particularly, a pressure input measurement sensor is attached to one side of the limiter, and the rate of change of the limiter by the repulsive force due to the pressure input acting on the limiter. By measuring the pressure input through this, it is possible to measure the pressure input, and also relates to a limiter for the elastic core device with a pressure input measuring sensor is attached to the pressure input measuring sensor to enhance the product competitiveness by the reduction in manufacturing cost by a simple configuration.

일반적으로 자동차의 변속기, 엔진, 조향장치나 모터, 기어박스 등의 대량 생산되는 각종 기계부품은 로봇이나, 조립 전용기 등을 사용하여, 조립부품인 베어링, 오일씰, 부싱, 정밀축, 핀 등과 같은 정밀 부품을 피 조립부품의 베어링 보어, 하우징, 축구멍, 핀구멍 등에 자동으로 조립하여 대량생산되고 있다.In general, various mechanical parts such as automobile transmission, engine, steering device, motor, gear box, etc. are produced by robot or assembly machine, and the precision parts such as bearing, oil seal, bushing, precision shaft, pin, etc. The parts are automatically assembled into bearing bores, housings, shaft holes, pin holes and the like of mass-produced parts.

도 1은 종래의 압입장치의 개략도로서, 이를 참조하면 프레임(1)과 상기 프레임(1)의 상단에 마련되어, 보스(B)가 고정되는 보스지지부(2)와, 상기 보스지지부(2)의 상방에 마련되고 상기 보스(B)에 삽입되는 축(A)이 고정되며 상기 축(A)을 보스(B)에 압입되도록 승강되는 승강부(3)와, 상기 승강부(3)의 승강을 지지하는 가이드부(4)와 상기 승강부(3)가 가이드부(4)를 따라 승강되도록 승강력을 제공하는 유압부(5)로 구성된다.1 is a schematic view of a conventional indentation apparatus, referring to the boss 1 is provided on the frame 1 and the top of the frame 1, the boss (B) is fixed, and the boss support (2) Lifting unit 3 and the lifting unit 3, which is provided in the upper and inserted into the boss (B) is fixed and raised and lowered so as to press the shaft (A) into the boss (B), the lifting of the lifting unit (3) It consists of a guide portion (4) for supporting and the lifting portion (3) is provided with a hydraulic portion (5) for providing a lifting force to move up and down along the guide portion (4).

상기 압입장치는 유압부(5)의 유압펌프에서 발생된 유압이 유압실린더로 제 공되고, 상기 유압을 제공받은 유압실린더는 하강 또는 상승되고, 상기 유압실린더에 고정된 승강부(3)가 상기 유압실린더의 승강 방향을 따라 하강 또는 상승되되, 상기 가이드부(4)의 안내에 의해 상기 승강부(3)는 수직 승강력을 가짐에 따라 상기 승강부(3)에 고정된 축(A)이 보스지지부(2)에 고정된 보스(B)로 압입된다.The press-fitting device is provided with the hydraulic pressure generated by the hydraulic pump of the hydraulic unit 5, the hydraulic cylinder provided with the hydraulic pressure is lowered or raised, the lifting unit 3 fixed to the hydraulic cylinder is As the hydraulic cylinder is lowered or raised along the lifting direction of the hydraulic cylinder, and the lifting unit 3 has the vertical lifting force by the guide of the guide unit 4, the shaft A fixed to the lifting unit 3 is It is press-fitted to the boss B fixed to the boss support part 2.

또한, 축(A)이 압입된 보스(B)는 별도의 추출장치에 의해 보스지지부(2)에서 추출되고, 새로운 보스(B)가 위치되고, 더불어 승강부(3)도 상승하여 새로운 축(A)이 고정되어, 연속적인 압입이 진행된다.In addition, the boss B in which the shaft A is press-fitted is extracted from the boss support part 2 by a separate extraction device, a new boss B is positioned, and the lifting part 3 is also raised to raise the new shaft ( A) is fixed and continuous indentation proceeds.

여기에서, 상기 보스(B)는 하우징, 풀리, 축구멍, 핀구멍과 같이 공간을 가진 부품을 통칭하는 것이고, 상기 축(A)은 베어링, 오일씰, 부싱, 핀, 축과 같은 공간에 삽입되는 부품을 통칭한다.Here, the boss (B) refers to a part having a space such as a housing, a pulley, a shaft hole, a pin hole, and the shaft (A) is inserted into a space such as a bearing, an oil seal, a bushing, a pin, and a shaft. Collectively referred to parts.

그러나, 종래의 압입장치는 단순히 보스에 축을 유압에 의해 강제 압입시키는 압입 작용만을 수행함에 따라, 상기 보스와 축의 중심이 맞지않을 경우 강제압입에 의해 보스 또는 축이 파손되거나, 압입장치가 파손되는 문제점이 있었다.However, the conventional press-fit device simply performs a press-fitting operation by forcibly injecting the shaft into the boss by hydraulic pressure, whereby the boss or the shaft is broken or the press-fitting device is broken by the forced press when the center of the boss and the shaft does not match. There was this.

이를 보완하기 위해 본 출원인의 국내 공개특허공보 제 2001-85013 호(명칭 : 압입용 탄성중심기기)에 따르면, 상, 하부구조체와 상기 상, 하부구조체 사이에 다수의 탄성체 및 리미터로 구성된 탄성중심기기에 관한 것으로, 상기 탄성중심기기는 탄성중심원리를 이용한 것이며, 여기에서 탄성중심원리란, 탄성중심기기에 구속되는 물체의 주변에 탄성 중심점을 위치시켜, 그 점을 통과하는 힘이 작용하면, 상기 탄성중심기기에 지지되어 있는 물체는 그 힘의 방향으로 회전운동 없이 순수한 병진운동만 하게 되고, 그 점에 순수한 모멘트가 작용하면 병진운동 없이 탄성 중심점을 중심으로 순수한 회전운동만 하게 되는 특성을 나타내는 역학적인 원리를 말한다.In order to compensate for this, according to the applicant's Korean Patent Publication No. 2001-85013 (name: press-fit elastic center device), an elastic center device composed of a plurality of elastic bodies and limiters between the upper and lower structures and the upper and lower structures In relation to the above, the elastic center device uses an elastic center principle. Here, the elastic center principle means that an elastic center point is positioned around an object constrained by the elastic center device, and when a force passing through the point is applied, An object that is supported by an elastic center device has only pure translational motion without rotational motion in the direction of the force, and when pure moment acts on the point, only pure rotational motion around the elastic center point without translational motion Says principle.

따라서, 상기 본 출원인이 제안한 압입용 탄성중심기기를 종래의 압입장치에 부착 즉, 종래의 승강부(3)에 상기 압입용 탄성중심기기를 고정하여 사용하면, 상기 압입용 탄성중심기기에 의해 보스(B)와 축(A)은 탄성체의 순수한 병진운동에 의해 중심에 맞게 상호 압입된다.Accordingly, when the press-fit elastic center device proposed by the present applicant is attached to a conventional press-fit device, that is, the press-fit elastic center device is fixed to the conventional lifting unit 3, the press-fit elastic center device causes the boss to press. (B) and the axis (A) are mutually press-fitted to the center by the pure translational motion of the elastic body.

그러나, 상기의 압입용 단성중심기기가 부착된 압입장치나 종래의 압입장치는 공통적으로 보스와 축의 압입강도 즉, 압입력을 측정할 수 있는 수단이 구성되어 있지않기 때문에 보스에 압입된 축의 압입력을 확인할 수 없다는 문제점이 있었다.However, the above-mentioned press-fitting apparatus with a single-piece center device for press-fitting or a conventional press-fitting apparatus have no common means of measuring the press-in strength of the boss and the shaft, that is, the press-in force. There was a problem that can not be confirmed.

이는 보스와 축의 상호 압입력 측정목적은 보스와 축이 얼마만큼의 힘에 의해 상호 압입된 상태인지에 따라 상기 보스와 축이 결합된 부품의 효율성 및 수명이 판별되는 것으로, 가령 보스와 축의 압입력이 허용오차에 미치지 못하는 헐거운 압입일 경우, 보스에서 축이 쉽게 이탈될 수 있는 문제점이 있고, 또는 보스와 축이 압입력 허용오차를 초과하여 삽입될 경우 보스 또는 축 사이에서 상호 과도한 억지끼움에 의해 파손되는 문제점이 있다.The purpose of measuring the mutual pressure input of the boss and the shaft is to determine the efficiency and the service life of the component to which the boss and the shaft are coupled by how much the boss and the shaft are press-fitted to each other. In case of loose indentation that does not meet this tolerance, there is a problem that the axis can be easily detached from the boss, or if the boss and the axis are inserted beyond the indentation tolerance, it may be caused by excessive interference between the boss or the axis. There is a problem that is broken.

도 2는 종래의 탄성중심기기와 로드셀이 구성된 압입장치의 개략도로서, 이를 참조하면, 본 출원인의 탄성중심기기와 로드셀을 결합한 압입장치를 제공하여, 전술된 문제점인 중심 오차의 보상 및 압입력 측정이 가능한 압입장치가 제공되는바, 상기 탄성중심기기와 로드셀이 구성된 압입장치는 종래의 압입장치에서 승강되 는 승강부(3)의 하방에 탄성중심기기(10)가 구성되고, 상기 승강부(3)의 상방에 로드셀(20)이 구성된다.2 is a schematic diagram of a conventional indentation apparatus configured with an elastic center device and a load cell, and referring to this, by providing an indentation device combining the elastic center device and a load cell of the present applicant, the compensation of the center error and the indentation measurement, which are the above-mentioned problems This possible indentation apparatus is provided, wherein the indentation apparatus configured with the elastic center apparatus and the load cell is configured with an elastic center apparatus 10 below the elevating portion 3 which is elevated in the conventional indentation apparatus. The load cell 20 is comprised above 3).

도 3은 도2의 탄성중심기기와 로드셀의 결합구성의 확대도로서, 이를 참조하여 좀더 상세히 살펴보면, 가이드부(4)의 가이드레일을 따라 승강되는 승강부(3)의 승강대 내부에 로드셀(20)이 구성되고, 상기 로드셀(20)에 하중을 전달하는 커버(22)와 상기 커버(22)의 하방에는 축(A)을 교체 고정하는 공구가 하단에 구성된 탄성중심기기(10)가 구성되고, 상기 커버(22)를 승강대에 고정하기 위한 브라켓(12)으로 구성된다.FIG. 3 is an enlarged view of a coupling configuration of the elastic center device and the load cell of FIG. 2, which will be described in more detail with reference to the load cell 20 inside the platform of the lifting unit 3 that is elevated along the guide rail of the guide unit 4. ) Is configured, the cover 22 for transmitting the load to the load cell 20 and the lower portion of the cover 22 is composed of an elastic center device 10 is configured at the bottom of the tool for replacing and fixing the shaft (A) It consists of a bracket 12 for fixing the cover 22 to the platform.

그러나, 상기의 탄성중심기기와 로드셀이 구성된 압입장치는 부품수의 증가에 따른 제품 가격의 상승과, 제조 공정 및 구조가 복잡하여 유지보수비용의 증가 및 부품수의 증가에 의한 설치공간을 많이 차지하는 등의 제품 경쟁력을 하락시키는 문제점이 있었다.However, the press-fitting device composed of the above-mentioned elastic center device and the load cell increases the product price according to the increase in the number of parts, and the manufacturing process and the structure are complicated, which takes up a lot of installation space due to the increase in maintenance cost and increase in the number of parts. There was a problem of lowering the product competitiveness.

또한, 종래에 사용되던 가이드부(4)는 통상적으로 LM가이드라고 하는 가이드부재를 주로 사용하였으며, 상기 LM가이드의 경우 그 자체가 고가여서, 상기 LM가이드를 사용하는 장치의 설계 및 제작비용을 상승시키는 문제점이 있었다.In addition, the guide portion 4 used in the prior art mainly used a guide member called a LM guide, and the LM guide itself is expensive, thereby increasing the design and manufacturing cost of the device using the LM guide. There was a problem letting.

상기의 도 1과 같이 구성된 종래의 압입장치의 경우에는, 상기한 로드셀(20)을 승강부(3) 장착시키더라도 탄성중심기기(10)를 사용하지 않는다면, 축(A)과 보스(B) 사이에 작용하는 순수한 압입력을 정확하게 측정할 수 없다는 문제점이 있다.In the case of the conventional press-fit device configured as shown in FIG. 1, even when the load cell 20 is mounted with the lifting unit 3, the shaft A and the boss B are not used unless the elastic center device 10 is used. There is a problem in that it is impossible to accurately measure the pure pressing force acting in between.

특, 탄성중심기기(10)를 장착하지않고, 보스(B)와 축(A) 사이에 중심 오차를 가질 경우, 최초 축(A)의 하단이 보스(B)의 상단에 맞닿는 상태로 압입이 진행되면, 로드셀(20)에서 측정되는 압입력은 상기 승강부의 하강력 즉, 순수한 압입력에, 중심 오차에 의한 보스(B)와 축(A)의 변형력 및 유압실린더와 가이드부의 불필요한 마찰력이 더하여 진 값이 된다.In particular, if the center of gravity between the boss (B) and the shaft (A) without mounting the elastic center device 10, the press-in is in the state that the lower end of the first axis (A) is in contact with the upper end of the boss (B) As it progresses, the pressure input measured by the load cell 20 is the lowering force of the lifting unit, that is, pure pressure input, the deformation force of the boss (B) and the shaft (A) due to the center error and unnecessary frictional force of the hydraulic cylinder and the guide unit is added The value is true.

이에 반해, 도 2와 도 3과 같이, 탄성중심기기(10)에 의해 상기 축(A)과 보스(B)의 중심 오차를 보정하여 압입하게 되면, 상기 로드셀(20)에서는 상기 축(A)과 보스(B)의 실제 압입력만이 측정되어, 도 1의 압입장치 보다는 정확한 순수 압입력이 측정될 것이나, 부품수의 증가에 따른 제품가격의 상승과, 제조 공정 및 구조가 복잡하여 유지보수비용이 증가하며, 부품수의 증가에 의한 설치공간을 많이 차지하는 등의 재품 경쟁력을 하락시키는 문제점이 있다.On the contrary, as shown in FIGS. 2 and 3, when the central error between the shaft A and the boss B is corrected and press-fitted by the elastic center device 10, the load cell 20 causes the shaft A to be pressed. Only the actual indentation of the boss B and the boss B are measured, so that the exact pure indentation will be measured more than the indentation apparatus of FIG. 1, but the maintenance of the product price due to the increase in the number of parts and the complicated manufacturing process and structure There is a problem in that the cost increases, and the competitiveness of the product, such as occupying a lot of installation space due to the increase in the number of parts, is reduced.

상기와 같은 문제점을 해소하기 위한 본 발명의 목적은 리미터의 일측에 압입력측정센서를 부착하여, 상기 리미터에 작용하는 압입력에 의해 발생되는 변형률을 측정하고 이를 통해 압입력을 산출함으로써, 용이하게 압입력을 측정하는 압입력측정센서가 부착된 탄성중심기기용 리미터를 제공하는 데 있다.An object of the present invention for solving the above problems is by attaching a pressure input measurement sensor on one side of the limiter, by measuring the strain generated by the pressure input acting on the limiter and through this calculates the pressure input easily An object of the present invention is to provide a limiter for an elastic core device with a pressure input measurement sensor for measuring a pressure input.

본 발명의 다른 목적은 구조가 단순하여, 제조단가의 하락과 제조공정의 단축 및 설치공간의 효율성을 극대화로 제품 경쟁력을 강화하는 압입력측정센서가 부착된 탄성중심기기용 리미터를 제공하는 데 있다.Another object of the present invention is to provide a limiter for an elastic center device with a pressure input measuring sensor having a simple structure, which reduces the manufacturing cost, shortens the manufacturing process, and maximizes the efficiency of the installation space. .

상기의 목적을 달성하기 위해 본 발명의 압입력측정센서가 부착된 탄성중심기기용 리미터는 상, 하부지지체와, 상기 상, 하부지지체 사이에 다수의 탄성체 및 리미터가 구성되어, 탄성중심원리에 의해 순수한 병진운동으로 보스와 축 사이의 중심오차를 보정하는 압입용 탄성중심기기에 있어서, 상기 리미터의 일측에 압입력측정센서를 부착하여, 상기 리미터에 작용하는 압입력에 의한 변화율을 측정하고, 이를 통해 압입력을 산출하도록 구성되는 것을 특징으로 한다.In order to achieve the above object, the limiter for an elastic center apparatus with a pressure input measuring sensor according to the present invention includes an upper body, a lower support, and a plurality of elastic bodies and limiters formed between the upper and lower support members. In the press-fit elastic center device for correcting the central error between the boss and the axis by pure translation motion, by attaching a pressure input measuring sensor on one side of the limiter, and measures the rate of change by the pressure input acting on the limiter, It is characterized in that configured to calculate the pressure input through.

본 발명에 있어서, 리미터에는 압입력측정센서가 부착되는 부분에 평면을 형성하거나 또는 압입력에 의한 변화률을 향상시키기 위한 노치공이 형성됨이 바람직하다.In the present invention, it is preferable that a notch hole is formed in the limiter so as to form a flat surface at the portion where the pressure input measurement sensor is attached or to improve the rate of change by the pressure input.

본 발명에 있어서, 리미터의 일측에 부착된 압입력측정센서를 보호하고, 부착력을 강화하기 위해 상기 압입력측정센서가 부착된 외주에 코팅층을 더 형성함이 바람직하다.In the present invention, in order to protect the pressure input measurement sensor attached to one side of the limiter, it is preferable to further form a coating layer on the outer periphery to which the pressure input measurement sensor is attached.

이하, 본 발명을 첨부된 도면을 참조하여 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명에 따른 리미터에 압입력측정센서가 부착된 탄성중심기기의 조립 단면도로서, 이를 참조하면, 탄성중심기기(10a)는 상, 하부지지체(13)(14)와 상기 상, 하부지지체(13)(14)의 사이에 마련되는 다수의 탄성체(16)와 리미터(30)들이 구성되는바, 상기 탄성중심기기(10a)를 구성하는 상, 하부지지체(13)(14)와, 탄성체(16), 및 리미터(30)의 결합관계 및 작용 효과는 종래 기술에 언급된 본 출원인의 국내 공개특허공보 제 2001-85013 호(명칭 : 압입용 탄성중심기기)에 상세 히 기재되어 있으므로, 이에 대한 설명은 생략한다.4 is an assembled cross-sectional view of an elastic center device having a pressure input measurement sensor attached to a limiter according to the present invention. Referring to this, the elastic center device 10a includes upper and lower supports 13 and 14 and upper and lower parts. A plurality of elastic bodies 16 and limiters 30 are provided between the supports 13 and 14, and the upper and lower supports 13 and 14 constituting the elastic center device 10a, Since the coupling relationship and the effect of the elastic body 16 and the limiter 30 are described in detail in Korean Patent Application Publication No. 2001-85013 (name: Press-fit elastic center device) of the present applicant mentioned in the prior art, Description thereof will be omitted.

아울러, 상기 리미터(30)의 외주연 일측에는 압입력측정센서(40)가 구성되고, 상기 압입력측정센서(40)는 미세한 변화율을 감지할 수 있는 전기식 스트레인게이지(electrical strain gage)로 구성됨이 바람직하다.In addition, a pressure input measurement sensor 40 is configured on one side of the outer periphery of the limiter 30, and the pressure input measurement sensor 40 is composed of an electrical strain gage capable of detecting a minute change rate. desirable.

또한 상기 압입력측정센서(40)는 다수의 리미터(30) 각각에 구성되고, 상기 각각의 리미터(30)에 복수로 부착되어 정확한 압입력 측정이 가능하도록 구성함이 바람직하다.In addition, the pressure input measurement sensor 40 is configured to each of a plurality of limiters 30, it is preferable to be configured to enable a precise pressure input measurement is attached to a plurality of each of the limiters (30).

한편, 상기 압입력측정센서(40)는 도시되지 않았지만, 변화율을 측정하고, 이를 통해 압입력의 산출 및 상기 산출된 압입력을 외부 디스플레이에 출력 및 상기 산출된 압입력 값에 따라 보스와 축의 끼워맞춤의 합격 여부를 하는 등의 제어부 기능을 포함하는 것이다.Meanwhile, although not illustrated, the pressure input measurement sensor 40 measures a rate of change, thereby outputting the pressure input and outputting the calculated pressure input to an external display, and fitting the boss and the shaft according to the calculated pressure input value. It includes a control unit function such as whether or not to pass the alignment.

도 5는 도 4에서 탄성중심기기에 압입력이 작용할 경우 리미터의 변화율을 도시한 단면도로서, 이를 참조하면 보스에 축을 삽입시키기 위해 탄성중심기기(10a)가 하강하고, 이때 상기 보스와 축 사이에 압입력이 발생되며, 상기 압입력은 수직선상의 축 고정틀과 하부지지체(14)를 통해 리미터(30)까지 전달된다.FIG. 5 is a cross-sectional view illustrating the rate of change of the limiter when the pressure input acts on the elastic center device in FIG. 4. Referring to this, the elastic center device 10a is lowered to insert the shaft into the boss, and the boss and the shaft are disposed therebetween. A pressure input is generated, and the pressure input is transmitted to the limiter 30 through the shaft fixing frame and the lower support 14 on the vertical line.

그리고, 상기 리미터(30)는 탄성체(16)가 압축되면서 일정 높이 상승되다 상단의 승강부의 하단에 밀착되면, 하방의 압입력의 상승과 승강부의 하단 정지단에 의해 압축변형하게 된다.Then, the limiter 30 is raised by a certain height while the elastic body 16 is compressed, if it is in close contact with the lower end of the lifting portion of the upper, the compression deformation by the lower end of the rising pressure input and the lower end of the lifting portion.

따라서, 상기 압축변형량에 따라 압입력측정센서(40)는 변화율을 계산하여 압입력을 산출하고, 상기 산출된 압입력은 외부의 디스플레이(미도시)에 출력한다.Accordingly, the pressure input measurement sensor 40 calculates the change rate according to the compression strain, and outputs the pressure input to the external display (not shown).

따라서, 상기의 탄성중심기기는 간단한 구성으로 제조단가 및 제조공정의 단축 및 보스와 축 사이의 중심 오차보정뿐만 아니라 압입력 측정이 가능하며, 또한 기존에 사용되고 있는 제품에도 적용 가능하다는 효과가 있다.Therefore, the above-described elastic center device can measure the pressure input as well as the manufacturing cost and the shortening of the manufacturing process and the center error between the boss and the axis with a simple configuration, and can also be applied to the existing products.

도 6은 다른 실시 예에 따른 리미터의 사시도로서, 이를 참조하면, 리미터(30a)의 일측에는 평면(32)를 형성하여, 상기 형성된 평면(32)에 의해 압입력측정센서(40)의 용이한 부착이 가능하다.FIG. 6 is a perspective view of a limiter according to another embodiment, and referring to this, a plane 32 is formed at one side of the limiter 30a to facilitate the pressure input measurement sensor 40 by the formed plane 32. It is possible to attach.

도 7은 또 다른 실시 예에 따른 리미터의 사시도로서, 이를 참조하면, 리미터(30b)는 일측에 관통되는 노치공(34)을 형성하여, 노치공(34) 주변의 압축 변화율이 가장 큰 지점에 압입력측정센서(40)를 부착함으로써, 상기 노치공(34)에 의해 상기 리미터(30b)의 변화율이 증폭됨에 따라 보다 정확한 압입력 측정이 가능하도록 한다.FIG. 7 is a perspective view of a limiter according to another embodiment. Referring to this, the limiter 30b forms a notch hole 34 penetrating at one side, and a compression rate around the notch hole 34 is greatest. By attaching the pressure input measuring sensor 40, as the change rate of the limiter 30b is amplified by the notch hole 34, more accurate pressure input measurement is possible.

또한, 상기 리미터(30b)의 노치공(34)은 종래의 리미터 일측에 다수의 평면부를 형성하여, 상기 평면부에 스패너 등을 사용하여 돌림으로써 리미터의 체결이 완료되었지만, 상기 노치공(34)에 의해 종래와 같은 평면부를 형성하지 않고, 상기 노치공(34)에 지렛대 등을 삽입하여 체결 조립이 가능하다.In addition, the notch hole 34 of the limiter 30b forms a plurality of planar portions on one side of the conventional limiter, and the tightening of the limiter is completed by turning using a spanner or the like on the planar portion, but the notch hole 34 is completed. By this, it is possible to fasten and assemble by inserting a lever or the like into the notch hole 34 without forming a flat portion as in the prior art.

한편, 상기 다른 실시 예에 언급된 리미터의 형상을 조합하여 사용하여도 무관하다.On the other hand, the shape of the limiter mentioned in the other embodiments may be used in combination.

아울러, 상기 리미터의 외주에 부착되는 압입력측정센서의 용이한 부착력 및 외부의 충격으로부터 보호하기 위해 코팅층을 더 형성함이 바람직하다.In addition, it is preferable to further form a coating layer to protect from easy impact and external impact of the pressure input measuring sensor attached to the outer periphery of the limiter.

그리고, 상기 코팅층은 실리콘, 고무 또는 우레탄과 같이 탄성을 가지는 재질을 사용함이 바람직하다.The coating layer is preferably made of a material having elasticity, such as silicone, rubber or urethane.

이와 같이 본 발명의 압입력측정센서가 부착된 탄성중심기기용 리미터는 리미터의 일측에 압입력측정센서를 부착하여, 상기 리미터에 작용하는 압입력에 의해 발생되는 변형률을 측정하고 이를 통해 압입력을 산출함으로써, 용이하게 압입력을 측정하는 효과가 있다.As described above, the limiter for an elastic core device with a pressure input measurement sensor according to the present invention attaches a pressure input measurement sensor to one side of the limiter, and measures the strain generated by the pressure input acting on the limiter, thereby measuring the pressure input. By calculating, there is an effect of easily measuring the pressure input.

아울러, 구조가 단순하여, 제조단가의 하락과 제조공정의 단축 및 설치공간의 최소화로 공간 효율성을 증가시키고 제품 경쟁력을 강화하는 효과가 있다.In addition, the structure is simple, it has the effect of increasing the space efficiency and the product competitiveness by reducing the manufacturing cost, shortening the manufacturing process and minimizing the installation space.

이상에서 설명한 것은 본 발명에 따른 압입력측정센서가 부착된 탄성중심기기용 리미터를 실시하기 위한 하나의 실시예에 불과한 것으로서, 본 발명은 상기한 실시 예에 한정되지 않고, 이하 특허청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능한 범위까지 본 발명의 기술적 정신이 있다고 할 것이다.What has been described above is only one embodiment for implementing a limiter for an elastic center device with a pressure-input measuring sensor according to the present invention, the present invention is not limited to the above-described embodiment, it is claimed in the claims Without departing from the gist of the present invention, any one of ordinary skill in the art to which the present invention belongs will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (4)

상, 하부지지체와, 상기 상, 하부지지체 사이에 다수의 탄성체 및 리미터가 구성되어, 탄성중심원리에 의해 순수한 병진운동으로 보스와 축 사이의 중심 오차를 보정하는 압입용 탄성중심기기에 있어서,In the upper and lower support, and a plurality of elastic bodies and limiters are composed between the upper and the lower support, in the elastic centering device for press-fitting to compensate for the center error between the boss and the axis in pure translation by the elastic center principle, 상기 리미터의 일측에 압입력측정센서(40)를 부착하여, 상기 리미터에 작용하는 압입력에 의한 변화율을 측정하고, 이를 통해 압입력을 산출하도록 구성되는 것을 특징으로 하는 압입력측정센서가 부착된 탄성중심기기용 리미터.Attached to the pressure input measuring sensor 40 on one side of the limiter, and measures the rate of change by the pressure input acting on the limiter, it is configured to calculate the pressure input through which the pressure input measuring sensor is attached Limiter for elastic center machines. 제 1 항에 있어서, 상기 리미터(30a)에는The method of claim 1, wherein the limiter (30a) 압입력측정센서(40)가 부착되는 부분에 평면(32)이 형성되어 있는 것을 특징으로 하는 압입력측정센서가 부착된 탄성중심기기용 리미터.Limiter for elastic core device with a pressure input measurement sensor, characterized in that the plane 32 is formed in the portion to which the pressure input measurement sensor 40 is attached. 제 1 항에 있어서, 상기 리미터(30b)에는The method of claim 1, wherein the limiter (30b) 압입력에 의한 변화률을 향상시키기 위한 노치공(34)이 형성되어 있는 것을 특징으로 하는 압입력측정센서가 부착된 탄성중심기기용 리미터.Limiter for elastic core device with a pressure input measuring sensor, characterized in that the notch hole 34 for improving the rate of change by the pressure input is formed. 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 리미터의 일측에 부착된 압입력측정센서(40)를 보호하고, 부착력을 강화하기 위해 상기 압입력측정센서(40)가 부착된 외주에 코팅층을 더 형성하는 것을 특징으로 하는 압입력측정센서가 부착된 탄성중심기기용 리미터.In order to protect the pressure input measurement sensor 40 attached to one side of the limiter, the pressure input measurement sensor further comprises a coating layer formed on the outer periphery to which the pressure input measurement sensor 40 is attached. Limiter for attached elastic center equipment.
KR1020060056213A 2006-06-16 2006-06-22 Limiter for elastic center equipment with pressure input measurement sensor Active KR100706299B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
KR1020060056213A KR100706299B1 (en) 2006-06-22 2006-06-22 Limiter for elastic center equipment with pressure input measurement sensor
EP07252457A EP1867429B1 (en) 2006-06-16 2007-06-15 Remote center compliance device with measuring sensor
JP2007159564A JP5142600B2 (en) 2006-06-16 2007-06-15 Elastic center device with measuring sensor
AT07252457T ATE506141T1 (en) 2006-06-16 2007-06-15 REMOTE CENTRAL COMPLIANT DEVICE WITH MEASUREMENT SENSOR
US11/763,641 US7748136B2 (en) 2006-06-16 2007-06-15 Remote center compliance device with measuring sensor
DE602007013969T DE602007013969D1 (en) 2006-06-16 2007-06-15 Remote center compliant device with measuring sensor
US11/766,590 US7421799B2 (en) 2006-06-22 2007-06-21 Remote center compliance device with one elastic body
JP2007164199A JP5201888B2 (en) 2006-06-22 2007-06-21 Elastic center device composed of one elastic body
EP07252557A EP1870197B1 (en) 2006-06-22 2007-06-22 Remote center compliance device with one elastic body
AT07252557T ATE491544T1 (en) 2006-06-22 2007-06-22 REMOTE CENTRAL COMPLIANT DEVICE HAVING AN ELASTIC BODY
DE602007011155T DE602007011155D1 (en) 2006-06-22 2007-06-22 Remote center compliant device with an elastic body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060056213A KR100706299B1 (en) 2006-06-22 2006-06-22 Limiter for elastic center equipment with pressure input measurement sensor

Publications (1)

Publication Number Publication Date
KR100706299B1 true KR100706299B1 (en) 2007-04-13

Family

ID=38161531

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060056213A Active KR100706299B1 (en) 2006-06-16 2006-06-22 Limiter for elastic center equipment with pressure input measurement sensor

Country Status (1)

Country Link
KR (1) KR100706299B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101033916B1 (en) 2007-07-26 2011-05-11 주상완 Elastic center unit with measuring sensor
KR101033917B1 (en) * 2007-07-26 2011-05-11 주상완 Elastomeric center device equipped with a measuring sensor and composed of one elastic body
CN107160140A (en) * 2017-07-08 2017-09-15 江阴博衍机械设备有限公司 Press-fit and use pressure head floating installation
KR20200137676A (en) * 2019-05-31 2020-12-09 주식회사 디오티 Safety evaluation system of bridges based on Wireless communication
KR20200137677A (en) * 2019-05-31 2020-12-09 주식회사 디오티 Modular dynamic analysis system based on wireless communication using always vibration of structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1177554A (en) * 1997-09-05 1999-03-23 Katsuyuki Totsu Torque limiter and torque control system using it
KR20010085013A (en) 2001-07-16 2001-09-07 주상완 Remote Center Compliance Device for Forced Insertion
KR100589700B1 (en) * 2005-02-07 2006-06-19 주상완 Elastic center unit that can transmit torque

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1177554A (en) * 1997-09-05 1999-03-23 Katsuyuki Totsu Torque limiter and torque control system using it
KR20010085013A (en) 2001-07-16 2001-09-07 주상완 Remote Center Compliance Device for Forced Insertion
KR100589700B1 (en) * 2005-02-07 2006-06-19 주상완 Elastic center unit that can transmit torque

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101033916B1 (en) 2007-07-26 2011-05-11 주상완 Elastic center unit with measuring sensor
KR101033917B1 (en) * 2007-07-26 2011-05-11 주상완 Elastomeric center device equipped with a measuring sensor and composed of one elastic body
CN107160140A (en) * 2017-07-08 2017-09-15 江阴博衍机械设备有限公司 Press-fit and use pressure head floating installation
KR20200137676A (en) * 2019-05-31 2020-12-09 주식회사 디오티 Safety evaluation system of bridges based on Wireless communication
KR20200137677A (en) * 2019-05-31 2020-12-09 주식회사 디오티 Modular dynamic analysis system based on wireless communication using always vibration of structure
KR102205174B1 (en) * 2019-05-31 2021-01-20 주식회사 디오티 Safety evaluation system of bridges based on Wireless communication
KR102205175B1 (en) * 2019-05-31 2021-01-20 주식회사 디오티 Modular dynamic analysis system based on wireless communication using always vibration of structure

Similar Documents

Publication Publication Date Title
KR100801220B1 (en) Elastic centering device capable of measuring pressure input
KR101033916B1 (en) Elastic center unit with measuring sensor
KR100706299B1 (en) Limiter for elastic center equipment with pressure input measurement sensor
US7748136B2 (en) Remote center compliance device with measuring sensor
EP1826543A3 (en) Stress isolated pressure sensing die
CN201193659Y (en) Assembling structure of radial thrust bearing with constant axial pretightening force
CN203929494U (en) A kind of for scleroscopic power sensor limiter mechanism
CN106975919A (en) A kind of aluminium alloy chain cover pin and oil seal pressing equipment
KR101385547B1 (en) Pushing device for copper rivet or bush of die casting handle
CN104964885A (en) Bushing torsion test tool
CN216472002U (en) Self-adaptive lifting mechanism and car lifting jack
KR102139914B1 (en) Assembly device for ball joint
CN2882839Y (en) Pump mount shaping gear
CN110887428A (en) Matching method for input shaft gasket of automobile transmission
CN210524375U (en) Gear pump shaft sleeve press-fitting device
CN201402190Y (en) Crossed self-restoring bridge transducer
KR101439061B1 (en) Spring washer calibration device for air operated valve actuator
CN204807405U (en) Bush class torsion test frock
CN215248924U (en) Pressure and residual life sensing sensor for friction lining
KR20040017022A (en) An apparatus for measuring spring tension and assembling the spring
CN216541710U (en) Single action cylinder bearing installation buffer gear
CN219692197U (en) Reduction gearbox bearing closing device
CN222588451U (en) Laser welding hold-down mechanism for body-in-white top cover
CN221110591U (en) Speed reducer press-fitting device
CA2755168C (en) Crimping press

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20060622

PA0201 Request for examination
E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20070323

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20070404

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20070405

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20100405

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 20110401

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 20120322

Start annual number: 6

End annual number: 6

FPAY Annual fee payment

Payment date: 20130222

Year of fee payment: 7

PR1001 Payment of annual fee

Payment date: 20130222

Start annual number: 7

End annual number: 7

FPAY Annual fee payment

Payment date: 20140404

Year of fee payment: 8

PR1001 Payment of annual fee

Payment date: 20140404

Start annual number: 8

End annual number: 8

FPAY Annual fee payment

Payment date: 20160324

Year of fee payment: 10

PR1001 Payment of annual fee

Payment date: 20160324

Start annual number: 10

End annual number: 10

FPAY Annual fee payment

Payment date: 20170403

Year of fee payment: 11

PR1001 Payment of annual fee

Payment date: 20170403

Start annual number: 11

End annual number: 11

FPAY Annual fee payment

Payment date: 20180402

Year of fee payment: 12

PR1001 Payment of annual fee

Payment date: 20180402

Start annual number: 12

End annual number: 12

FPAY Annual fee payment

Payment date: 20190402

Year of fee payment: 13

PR1001 Payment of annual fee

Payment date: 20190402

Start annual number: 13

End annual number: 13

PR1001 Payment of annual fee

Payment date: 20200420

Start annual number: 14

End annual number: 14

PR1001 Payment of annual fee

Payment date: 20230404

Start annual number: 17

End annual number: 17

PR1001 Payment of annual fee

Payment date: 20240308

Start annual number: 18

End annual number: 18

PR1001 Payment of annual fee

Payment date: 20250224

Start annual number: 19

End annual number: 19