KR20030026626A - Device for measuring piston diameter - Google Patents

Device for measuring piston diameter Download PDF

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Publication number
KR20030026626A
KR20030026626A KR1020010059699A KR20010059699A KR20030026626A KR 20030026626 A KR20030026626 A KR 20030026626A KR 1020010059699 A KR1020010059699 A KR 1020010059699A KR 20010059699 A KR20010059699 A KR 20010059699A KR 20030026626 A KR20030026626 A KR 20030026626A
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KR
South Korea
Prior art keywords
piston
cover
diameter
fixing jig
fixing
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KR1020010059699A
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Korean (ko)
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KR100427335B1 (en
Inventor
김대성
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현대자동차주식회사
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Priority to KR10-2001-0059699A priority Critical patent/KR100427335B1/en
Publication of KR20030026626A publication Critical patent/KR20030026626A/en
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Publication of KR100427335B1 publication Critical patent/KR100427335B1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/08Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Measuring instruments characterised by the use of mechanical techniques
    • G01B3/18Micrometers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G01B5/0004Supports
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/025Measuring of circumference; Measuring length of ring-shaped articles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

PURPOSE: A piston diameter measuring apparatus is provided to precisely and conveniently measure the diameter of the piston by measuring the diameter of the piston after fixing the piston. CONSTITUTION: A piston diameter measuring apparatus includes a fixing jig(10), on which a piston(3) is placed. A cover(20) is slidably coupled to the fixing jig(10) in such a manner that the height of the cover(20) is adjustable along the fixing jig(10). The cover(20) supports a dial gauge(40). A piston fixing bolt(30) is provided to fix the piston(3). A diameter of the piston(3) is measured by the dial gauge(40). The fixing jig(10) includes a body(12), on which the piston(3) is placed, and a lower supporting member(14) integrally formed with the body(12) so as to support the body(12). The cover(20) has a cylindrical shape and surrounds the body(12).

Description

피스톤 직경 측정장치{Device for measuring piston diameter}Device for measuring piston diameter

본 발명은 피스톤 직경 측정장치에 관한 것으로서, 더욱 상세하게는 다이얼 게이지를 지지하는 커버의 높이가 조절된 상태에서 커버 내측으로 피스톤이 고정된 후 측정이 이루어지므로 정확한 직경 측정이 이루어질 수 있고, 측정하고자 하는 각도를 변경하기 위하여 다이얼 게이지만을 회전시키면 되므로 시간 단축 및 측정의 편의성이 향상될 수 있는 피스톤 직경 측정장치에 관한 것이다.The present invention relates to a piston diameter measuring device, and more particularly, since the measurement is made after the piston is fixed to the inside of the cover in a state in which the height of the cover for supporting the dial gauge is adjusted, accurate diameter measurement can be made and measured. The present invention relates to a piston diameter measuring apparatus which can reduce time and improve convenience of measurement because only the dial gauge needs to be rotated to change the angle.

일반적으로 차량 엔진에는 실린더 내부에서 왕복운동을 하는 부품으로서 피스톤이 설치되고, 이 피스톤은 연소실에서 발생한 고온ㆍ고압의 가스압을 받아 커넥팅 로드를 통해 크랭크축의 회전력을 발생시키는 일을 한다.Generally, a piston is installed in a vehicle engine as a component that reciprocates inside a cylinder, and the piston receives a high-temperature and high-pressure gas pressure generated in a combustion chamber to generate a rotational force of the crankshaft through a connecting rod.

상기 피스톤은 고속운동으로 큰 마찰이 생기는 등 악조건하에서 그 기능을 발휘해야 하므로 큰 내구성을 가지도록 제조되는 바, 엔진의 각종 성능시험에서 피스톤의 내구성 시험은 필수적이다.The piston is manufactured to have great durability because it must exhibit its function under adverse conditions such as high friction generated by high speed movement, and the durability test of the piston is essential in various performance tests of the engine.

상기 피스톤의 내구성 시험에서는 피스톤의 직경(외경)을 반드시 측정해야 하는 바, 종래에는 피스톤의 직경을 측정하기 위한 별도의 장치가 구비되어 있지 않아, 손으로 피스톤을 잡고 버니어캘리퍼스나 마이크로미터를 이용하여 피스톤의 직경을 측정하였다.In the durability test of the piston, the diameter (outer diameter) of the piston must be measured. In the related art, a separate device for measuring the diameter of the piston is not provided. Therefore, the piston is held by hand using a vernier caliper or a micrometer. The diameter of the piston was measured.

그러나, 이러한 피스톤의 직경 측정은 측정위치나 측정각도(원주방향을 따라)에 따라 그 측정치가 달라지므로 정확한 측정이 어렵고, 한 손으로 피스톤을 잡고 다른 손으로 측정기구를 조작해야 하는 불편함과, 측정부위가 많으면 시간이 오래 걸리는 문제점이 있었다.However, since the measurement of the diameter of the piston varies depending on the measurement position or the measurement angle (along the circumferential direction), accurate measurement is difficult, and the inconvenience of having to hold the piston with one hand and operate the measuring device with the other hand, If there are many measurement sites, it takes a long time.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명한 것으로서, 피스톤이 고정된 후 측정이 이루어짐으로써, 정확한 직경 측정이 이루어질 수 있고, 시간 단축 및 측정의 편의성이 향상될 수 있는 피스톤 직경 측정장치를 제공하는데 그 목적이 있다.Therefore, the present invention is invented to solve the above problems, the measurement is made after the piston is fixed, accurate diameter measurement can be made, the piston diameter measuring device that can be shortened time and improved convenience of measurement The purpose is to provide.

도 1은 본 발명에 따른 피스톤 직경 측정장치를 나타내는 분해사시도,1 is an exploded perspective view showing a piston diameter measuring device according to the present invention,

도 2는 본 발명에 따른 피스톤 직경 측정장치의 조립단면도.Figure 2 is an assembled sectional view of the piston diameter measuring device according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

3 : 피스톤10 : 고정지그3: piston 10: fixing jig

20 : 커버30 : 피스톤 고정볼트20: Cover 30: Piston Fixing Bolt

32 : 고무부재40 : 다이얼 게이지32: rubber member 40: dial gauge

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

상기한 목적을 달성하기 위한 본 발명은: 피스톤이 놓여지게 되는 원형 단면의 몸체부(12)를 갖는 고정지그(10)와; 이 고정지그(10)에서 몸체부(12)를 감싼 채로 높이조절이 가능하게 설치되는 원통형의 커버(20)와; 다수개가 방사상으로 배치되어 각각이 상기 커버(20)에 반경방향으로 관통 체결되고, 회전시 전진하여 피스톤(3) 외주면을 조여줌으로써 피스톤(3)을 고정시켜주는 피스톤 고정볼트(30)와; 상기 커버(20) 상부면에 지지된 채로 상기 커버(20) 상측으로 돌출된 피스톤(3)의 직경을 측정하게 되는 다이얼 게이지(40);를 포함하여 이루어진 것을 특징으로 한다.The present invention for achieving the above object: a fixing jig 10 having a body portion 12 of a circular cross section in which the piston is placed; Cylindrical cover 20 is installed to allow height adjustment while wrapping the body portion 12 in the fixing jig (10); A plurality of radially disposed piston fixed bolts 30 fixed to the cover 20 to radially penetrate through the cover 20 and for advancing upon rotation to fix the piston 3 by tightening the outer peripheral surface thereof; And a dial gauge 40 measuring the diameter of the piston 3 protruding upward from the cover 20 while being supported by the upper surface of the cover 20.

본 발명의 바람직한 실시예에서, 상기 커버(20)는 회전됨에 따라 상기 고정지그(10)에서 높이조절이 이루어질 수 있게 그 내주면이 상기 고정지그(10)의 몸체부(12) 외주면과 볼트ㆍ너트 체결되는 것을 특징으로 한다.In a preferred embodiment of the present invention, as the cover 20 is rotated, the inner circumferential surface of the fixing jig 10 and the outer circumferential surface of the fixing jig 10 and the bolt and nut may be adjusted in height. It is characterized in that the fastening.

또한, 상기 커버(20)에는 상기 피스톤 고정볼트(30)의 체결위치가 상하로 조절될 수 있게 다수개의 체결홀(22)이 상하로 배치 형성되어 있는 것을 특징으로 한다.In addition, the cover 20 is characterized in that the plurality of fastening holes 22 are formed to be arranged up and down so that the fastening position of the piston fixing bolt 30 can be adjusted up and down.

또한, 상기 피스톤 고정볼트(30)의 단부 끝에는 고무부재(32)가 끼워지는 것을 특징으로 한다.In addition, the end of the piston fixing bolt 30 is characterized in that the rubber member 32 is fitted.

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

첨부한 도 1은 본 발명에 따른 피스톤 직경 측정장치를 나타내는 분해사시도이고, 도 2는 본 발명에 따른 피스톤 직경 측정장치를 나타내는 조립단면도로서, 직경을 측정하고자 하는 피스톤을 포함하여 도시하였다.1 is an exploded perspective view showing a piston diameter measuring apparatus according to the present invention, Figure 2 is an assembled cross-sectional view showing a piston diameter measuring apparatus according to the present invention, including a piston to measure the diameter.

이에 도시한 바와 같이, 본 발명에 따른 피스톤 직경 측정장치는 크게 피스톤(3)이 놓여지게 되는 고정지그(10)와, 이 고정지그(10)에서 높이조절이 이루어지고 조절된 높이에서 다이얼 게이지(40)를 지지해주는 커버(20)와, 피스톤(3)을 고정시켜주는 피스톤 고정볼트(30)와, 피스톤(3) 직경을 측정하게 되는 다이얼 게이지(40)를 포함하여 이루어진다.As shown in the drawing, the piston diameter measuring device according to the present invention has a fixed jig 10 in which the piston 3 is placed largely, and the height of the dial jig is adjusted at the fixed jig 10. A cover 20 for supporting 40, a piston fixing bolt 30 for fixing the piston 3, and a dial gauge 40 to measure the diameter of the piston (3).

이하, 본 발명의 구성을 도시한 실시예에 의거 좀더 상세히 설명하면 다음과 같다.Hereinafter, described in more detail based on the embodiment showing the configuration of the present invention.

상기 다이얼 게이지(40)는 공지된 것으로 실시될 수 있고, 그 실시예로서, 활모양의 게이지 마운트(42)에 의해 지지된 채 돌출 정도가 조절되는 게이지 바(44)가 피스톤(3)에 그 반경방향으로 접근, 상기 게이지 바(44) 단부 끝이 피스톤 외주면 상에 접촉하여, 상기 게이지 바(44)의 돌출 정도에 따른 피스톤(3) 직경이 측정되고, 이 측정된 직경이 다이얼(46)에 표시되는 것으로 실시될 수 있다.The dial gauge 40 may be practiced as known, and in one embodiment there is a gauge bar 44 which is controlled by the bow-shaped gauge mount 42 and whose degree of protrusion is adjusted to the piston 3. Radially approached, the end of the gauge bar 44 abuts on the piston outer circumferential surface, so that the diameter of the piston 3 according to the degree of protrusion of the gauge bar 44 is measured, and this measured diameter is dial 46. It can be carried out as shown in.

여기서, 상기 게이지 마운트(42)에는 측정자가 손쉽게 취부할 수 있도록 손잡이(48)가 설치되는 것이 바람직하다.Here, the gauge mount 42 is preferably provided with a handle 48 so that the measurer can easily mount.

또한, 상기 고정지그(10)는 피스톤이 놓여지고 커버에 삽입되는 원형 단면의 몸체부(12)와, 이 몸체부(12)를 지지하는 하측의 지지대(14)가 일체로 된 것으로서, 이 고정지그(10)의 외측으로 커버(20)가 조립되어진다.In addition, the fixing jig 10 is a body portion 12 of the circular cross section in which the piston is placed and inserted into the cover and the lower support 14 supporting the body portion 12 are integrated. The cover 20 is assembled to the outside of the jig 10.

상기 커버(20)는 고정지그(10)의 몸체부(12) 외주면을 감싸도록 설치되는 원통형으로 되어 있고, 상기 고정지그(10)에서 높이조절이 가능하게 설치된다.The cover 20 has a cylindrical shape installed to surround the outer circumferential surface of the body portion 12 of the fixing jig 10, and the height is adjustable in the fixing jig 10.

또한, 상기 커버(20)는 다이얼 게이지(40)를 지지하게 되는 바, 측정시에는 이 다이얼 게이지(40)의 게이지 바(44)를 상기 커버(20)의 상부면에 올려놓고 측정하게 된다.In addition, the cover 20 supports the dial gauge 40, and when measuring, the gauge bar 44 of the dial gauge 40 is placed on the upper surface of the cover 20 and measured.

상기 커버(20)의 높이조절을 위한 바람직한 실시예로서, 상기 고정지그(10)의 몸체부(12) 외주면과 상기 커버(20) 내주면을 볼트ㆍ너트 체결구조로 하고, 상기 커버(20)를 회전시킴에 따라 고정지그(10)에서 높이조절이 이루어지도록 한다.As a preferred embodiment for adjusting the height of the cover 20, the outer peripheral surface of the body portion 12 and the inner peripheral surface of the cover 20 of the fixing jig 10 has a bolt and nut fastening structure, and the cover 20 As it rotates, the height adjustment is made in the fixing jig 10.

또한, 상기 커버(20)에는 다수개의 피스톤 고정볼트(30)가 피스톤(3) 고정을 위하여 체결되는 바, 이 피스톤 고정볼트(30)는 고정지그(10) 상측에서 상기 커버(20)를 반경방향으로 관통하여 체결된다.In addition, a plurality of piston fixing bolts 30 are fastened to the cover 20 to fix the piston 3, and the piston fixing bolts 30 radius the cover 20 above the fixing jig 10. It penetrates in the direction.

따라서, 상기 피스톤 고정볼트(30)를 회전시켜 전진시키면 커버(20) 내측의 단부 끝이 피스톤(3) 외주면 상에 접촉하여 피스톤(3)을 조이게 되는 바, 이때 피스톤(3)이 고정지그(10) 및 커버(20) 내측에서 고정되는 것이다.Therefore, when the piston fixing bolt 30 is rotated to move forward, the end of the cover 20 is in contact with the outer peripheral surface of the piston 3 to tighten the piston 3, where the piston 3 is fixed jig ( 10) and the cover 20 is fixed inside.

상기 피스톤 고정볼트(30)는 측정시 방사상으로 배치되는 다수개가 동시에 체결되도록 하고, 바람직하게는 커버(20)에서 피스톤 고정볼트(30)가 체결되는 위치도 상하 조절될 수 있게 상기 커버(20)에 다수개의 체결홀(22)을 상하로 배치하여 형성시킨다.The piston fixing bolt 30 is to be coupled to a plurality of radially arranged at the same time when measuring, preferably the cover 20 to be adjusted up and down the position where the piston fixing bolt 30 is fastened in the cover 20 A plurality of fastening holes 22 are disposed in the vertical direction to form them.

또한, 피스톤 고정볼트(30)가 금속재질임을 고려하여, 주철 또는 알루미늄 합금 재질의 피스톤(3)과 직접 접촉하게 되는 피스톤 고정볼트(30)의 단부 끝에는,접촉을 부드럽게 하고, 미끄럼을 방지하여 피스톤(3)을 확실히 잡아줄 수 있도록, 고무부재(32)를 끼우는게 바람직하다.In addition, considering that the piston fixing bolt 30 is made of metal, the end of the piston fixing bolt 30 which is in direct contact with the piston (3) made of cast iron or aluminum alloy, the contact is smoothed, and the piston is prevented from slipping It is preferable to fit the rubber member 32 so as to securely hold (3).

이하, 본 발명의 피스톤 직경 측정장치를 이용하여 피스톤의 직경을 측정하게 되는 과정을 설명하면 다음과 같다.Hereinafter, the process of measuring the diameter of the piston using the piston diameter measuring apparatus of the present invention will be described.

먼저, 직경을 측정하고자 하는 피스톤(3)을 커버(20) 내측으로 삽입하여 고정지그(10)의 몸체부(12) 위에 설치한 후, 측정부위를 고려, 측정이 용이해질 수 있게 커버(20)를 회전시켜 그 높이를 조절한다.First, the piston 3 to measure the diameter is inserted into the cover 20 and installed on the body portion 12 of the fixing jig 10, and then the cover 20 may be easily considered in consideration of the measurement site. Rotate the) to adjust its height.

이후, 피스톤(3)이 커버(20)와 동심축 상에서 조여지도록 피스톤 고정볼트(30)를 회전시켜 피스톤(3)을 고정한다.Thereafter, the piston 3 is fixed by rotating the piston fixing bolt 30 so that the piston 20 is tightened on the concentric shaft.

상기와 같이 피스톤(3)이 고정된 후에는 피스톤(3)의 직경 측정부위가 커버(20) 상측으로 일정정도 돌출된 상태가 되어야 하며, 상기 커버(20) 상부면 위에 게이지 바(44)가 지지되도록 다이얼 게이지(40)를 올려놓은 후, 이 다이얼 게이지(40)를 이용하여 직경을 측정하게 된다.After the piston 3 is fixed as described above, the diameter measuring portion of the piston 3 should be protruded to the upper side of the cover 20 to some extent, and the gauge bar 44 is disposed on the upper surface of the cover 20. After placing the dial gauge 40 to be supported, the dial gauge 40 is used to measure the diameter.

또한, 상기 피스톤(3)의 직경을 동일 높이에서 측정각도(원주방향을 따라)를 달리하여 측정하고자 할 때에는 상기 커버(20) 상부면을 따라 게이지 바(44)를 슬라이딩시키는 방법으로 다이얼 게이지(40)를 회전시킨 후, 그 각도에서 직경을 측정하면 된다.In addition, when the diameter of the piston (3) is to be measured by varying the measurement angle (along the circumferential direction) at the same height, the dial gauge (by sliding the gauge bar 44 along the upper surface of the cover 20) After rotating 40), the diameter may be measured at that angle.

이상에서 상술한 바와 같이, 본 발명에 따른 피스톤 직경 측정장치에 의하면 다이얼 게이지를 지지하는 커버의 높이가 조절된 상태에서 커버 내측으로 피스톤이 고정된 후 측정이 이루어지므로 정확한 직경 측정이 이루어질 수 있고, 측정하고자 하는 각도를 변경하기 위하여 다이얼 게이지만을 회전시키면 되므로 시간 단축 및 측정의 편의성이 향상될 수 있는 효과가 있다.As described above, according to the piston diameter measuring apparatus according to the present invention, since the measurement is made after the piston is fixed to the inside of the cover in a state in which the height of the cover for supporting the dial gauge is adjusted, accurate diameter measurement can be made. Since only the dial gauge needs to be rotated in order to change the angle to be measured, the time can be shortened and the convenience of measurement can be improved.

Claims (4)

피스톤이 놓여지게 되는 원형 단면의 몸체부(12)를 갖는 고정지그(10)와;A fixed jig 10 having a body portion 12 of a circular cross section on which the piston is to be placed; 이 고정지그(10)에서 몸체부(12)를 감싼 채로 높이조절이 가능하게 설치되는 원통형의 커버(20)와;Cylindrical cover 20 is installed to allow height adjustment while wrapping the body portion 12 in the fixing jig (10); 다수개가 방사상으로 배치되어 각각이 상기 커버(20)에 반경방향으로 관통 체결되고, 회전시 전진하여 피스톤(3) 외주면을 조여줌으로써 피스톤(3)을 고정시켜주는 피스톤 고정볼트(30)와;A plurality of radially disposed piston fixed bolts 30 fixed to the cover 20 to radially penetrate through the cover 20 and for advancing upon rotation to fix the piston 3 by tightening the outer peripheral surface thereof; 상기 커버(20) 상부면에 지지된 채로 상기 커버(20) 상측으로 돌출된 피스톤(3)의 직경을 측정하게 되는 다이얼 게이지(40);A dial gauge 40 measuring the diameter of the piston 3 protruding upward of the cover 20 while being supported by the cover 20 upper surface; 를 포함하여 이루어진 것을 특징으로 하는 피스톤 직경 측정장치.Piston diameter measuring device, characterized in that consisting of. 제 1 항에 있어서, 상기 커버(20)는 회전됨에 따라 상기 고정지그(10)에서 높이조절이 이루어질 수 있게 그 내주면이 상기 고정지그(10)의 몸체부(12) 외주면과 볼트ㆍ너트 체결되는 것을 특징으로 하는 피스톤 직경 측정장치.According to claim 1, As the cover 20 is rotated, the inner peripheral surface of the fixing jig 10, the inner peripheral surface is bolt and nut fastened to the outer peripheral surface of the body portion 12 of the fixing jig 10 Piston diameter measuring device, characterized in that. 제 1 항에 있어서, 상기 커버(20)에는 상기 피스톤 고정볼트(30)의 체결위치가 상하로 조절될 수 있게 다수개의 체결홀(22)이 상하로 배치 형성되어 있는 것을특징으로 하는 피스톤 직경 측정장치.The piston diameter measurement according to claim 1, wherein the cover 20 has a plurality of fastening holes 22 arranged up and down so that the fastening position of the piston fixing bolt 30 can be adjusted up and down. Device. 제 1 항에 있어서, 상기 피스톤 고정볼트(30)의 단부 끝에는 고무부재(32)가 끼워지는 것을 특징으로 하는 피스톤 직경 측정장치.The piston diameter measuring apparatus according to claim 1, wherein a rubber member (32) is fitted at an end of the piston fixing bolt (30).
KR10-2001-0059699A 2001-09-26 2001-09-26 Device for measuring piston diameter KR100427335B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107063048A (en) * 2017-06-26 2017-08-18 江苏三能动力总成有限公司 The method that piston group portion's size detection is detected with cubing and using the cubing
CN114894070A (en) * 2022-05-20 2022-08-12 安徽省恒泰动力科技有限公司 Method for detecting key size standard part of piston

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
JPS57145210A (en) * 1981-03-05 1982-09-08 Tokyo Shibaura Electric Co Method of producing conductive member
KR960004925B1 (en) * 1992-11-06 1996-04-17 현대자동차주식회사 Piston thermal expansion measurement system
KR0159005B1 (en) * 1995-12-13 1999-03-30 김태구 Apparatus for measuring the installation width of hoist cylinder and cross member
KR19990018866A (en) * 1997-08-28 1999-03-15 양재신 Piston Outer Diameter Measuring Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107063048A (en) * 2017-06-26 2017-08-18 江苏三能动力总成有限公司 The method that piston group portion's size detection is detected with cubing and using the cubing
CN114894070A (en) * 2022-05-20 2022-08-12 安徽省恒泰动力科技有限公司 Method for detecting key size standard part of piston

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