CN101545749B - Device for measuring diameter of circular groove - Google Patents
Device for measuring diameter of circular groove Download PDFInfo
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- CN101545749B CN101545749B CN2008100694958A CN200810069495A CN101545749B CN 101545749 B CN101545749 B CN 101545749B CN 2008100694958 A CN2008100694958 A CN 2008100694958A CN 200810069495 A CN200810069495 A CN 200810069495A CN 101545749 B CN101545749 B CN 101545749B
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Abstract
The invention provides a device for measuring the diameter of a circular groove. The device comprises a vernier caliper; two clipping legs of the vernier caliper are provided with measuring legs with the same structure respectively, and each measuring leg consists of a cylindrical column body and a disk-shaped protruded edge which is coaxially arranged at one end of the column body; the column bodies are axially provided with penetrating grooves penetrating the protruded edges, and two side surfaces of each penetrating groove are parallel to each other; the center lines of the column bodies and the protruded edges are arranged on the axial symmetry planes of the penetrating grooves; and one side surface of each penetrating groove is provided with a screw hole which is vertical to the side surface and penetrating the column body on the side, the screw hole is provided with a fastening screw, and the other side surface of the penetrating groove is vertical to the upper planes and the lower planes of the protruded edge. The device has the advantages of accurately and conveniently measuring the bottom diameter of an external circular groove in various sizes as well as an internal circular groove in various diameters so as to meet the requirements on the measurement of various workpieces.
Description
Technical field
The present invention relates to a kind of cubing, relate in particular to a kind of detect on the cylindrical and endoporus in the measurement pin of annular groove.
Background technology
At present, for the outer groove of processing on external cylindrical surface and the inner groove in the endoporus, also do not have a kind of simple and easy to do, measure measuring method accurately.As piston ring as one of vital part of internal combustion engine, have oil ring groove and compression on its outer round surface, in order to oil ring and compression ring to be installed, oil ring groove and compression are referred to as piston ring groove, piston ring groove needs control, detection ring groove depth, for ease of measuring, be that control, the body diameter that detects the piston ring groove bottom surface are groove bottom diameter in reality processing.At present, in production and batch detection, there is special measuring tools such as utilizing clamp that the body diameter of piston ring groove bottom surface is detected, but the piston that the piston ring groove of different designs size or specifications and models are different, need to use the different special-purpose clamp of size, thereby this kind metering system can not be applicable to the detection in the sampling observation personnel that detect footpath annular groove of the different ends or single-piece, the small serial production.The sampling observation personnel insert two slip gauges that are narrower than piston ring groove the annular groove from the symmetria bilateralis of piston, and are inconsistent until slip gauge side and bottom land, use vernier caliper measurement to go out to comprise the length value of two slip gauge width dimensions then.But the general width with tested annular groove of the thickness of slip gauge is not complementary, and slip gauge two upper and lower surfaces and annular groove sidewall have bigger gap, thereby the upper and lower surface of slip gauge is difficult for paralleling with the top and bottom sidewall of annular groove, causes measurement inaccurate in the groove medium dip easily; And two slip gauge must be parallel to each other and tangent at length direction with the face of cylinder at the bottom of the annular groove, but two slip gauge inconvenience hold, are easily splayed when measuring, and have deflection just to cause slightly to measure inaccurate.In addition, because of only using the narrow side of slip gauge as measurement face, two sides very easily are worn, this uneven wearing and tearing form groove on slip gauge, not only make dimensional measurement inaccurate, and cause the destruction to slip gauge, this kind metering system only can directly detect the end of outer groove.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of testing tool of measuring diameter of ring groove, and it can detect the diameter of ring groove of different size accurately, easily.
Technical scheme of the present invention is as follows: a kind of testing tool of measuring diameter of ring groove, comprise vernier caliper, be separately installed with the identical measurement pin of structure on two card bases of described vernier caliper, described measurement pin is made of columniform shaft and the thin disk-shaped flange that is positioned at the coaxial setting of shaft one end; Axially be provided with the groove that connects flange on described shaft, the two sides of this groove are parallel to each other, and the center line of described shaft and flange is positioned on the axial plane of symmetry of described groove; Have with this side perpendicularly on a side of described groove, and connect the screw of this lateral column body, in this screw trip bolt is housed, two planes up and down of the another side of described groove and described flange are perpendicular.
Described screw axially is provided with two along shaft.
The head periphery of described trip bolt is provided with anti-skidding line.
Described shaft and flange are structure as a whole, and are made by carbon tool steel.
The present invention needs to use in pairs, before the measurement, card base with slide calliper rule inserts two grooves of measuring pin respectively earlier, then two bottom surfaces of measuring the disk-shaped flange of pin are transferred on same surface level, then trip bolt is tightened, the trailing flank of card base is fitted with the another side of measuring pin, thereby the measurement pin is fixed on the card base of slide calliper rule, pin is surveyed in the extension that becomes the slide calliper rule card base; Two flanges of measuring pin insert the piston ring groove from the both sides of piston during measurement, measure the bottom that pin is against annular groove one side with one earlier, allow another measure pin then and swing gently, find the maximal value of measurement, just making two, to measure the axial line of the axial line of pin and piston in the same plane.Because measurement pin and slide calliper rule are fixedly connected and are one, very convenient during measurement, solved with slip gauge and measured the bad problem that holds, and the groove side that two planes up and down of disk-shaped flange fit perpendicular to the card base trailing flank, and two bottom surfaces of measuring the disk-shaped flange of pin are lower plane, transfer in advance on same surface level, so flange can not tilt in annular groove when measuring, all the time perpendicular with the piston axes line, make and measure accurately; In addition, because the present invention and slide calliper rule are used, thereby not only can measure the piston outer groove in footpath, the different ends, also can measure the inner groove of different-diameter in the endoporus, suitable especially sampling observation personnel use.
The invention has the beneficial effects as follows: not only can detect footpath at the bottom of the outer groove of different size accurately, easily, also can the inner groove of different-diameter be detected, to satisfy the detection needs of various workpieces.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A cut-open view (taking off screw) of Fig. 1.
Synoptic diagram when Fig. 3 detects outer groove for using the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2 and shown in Figure 3, the present invention measures pin 1, right measurement pin 2 and vernier caliper 4 by a left side and forms, and is separately installed with the identical left side of structure and measures pin 1 and the right pin 2 of measuring on two card bases of vernier caliper 4.Measuring pin 1 is made of columniform shaft 1a and the thin disk-shaped flange 1b that is positioned at the coaxial setting of shaft 1a one end, its material is that carbon tool steel is through quenching and temper, make it have higher hardness and high-wearing feature, not easy to wear to keep the accuracy of measurement.The width of flange 1b is measured thereby make flange 1b can insert piston ring groove less than the width of the piston ring groove on the tested piston 5; The bench height of flange 1b and shaft 1a is greater than the degree of depth of piston ring groove, and like this, the cylindrical of flange 1b could touch with the bottom connection of piston ring groove when measuring, and is unlikely to make the external cylindrical surface interference of shaft 1a and piston.The groove 1c that connects flange 1b axially is set on shaft 1a, the two sides of this groove 1c are parallel to each other, the center line of shaft 1a and flange 1b is positioned on the axial plane of symmetry of described groove 1c, the two sides of this groove 1c are closed with the front and back sides cunning of used slide calliper rule card base and are cooperated, thereby the front and back sides that makes the slide calliper rule card base is symmetrical in the central plane of measuring pin, and the osculatory of the outer round surface intersection of this central plane and flange 1b during for measurement.The degree of depth of groove 1c is 3/4 of a shaft 1a diameter, greater than the width of used slide calliper rule card base, the card base of slide calliper rule can be contained, and makes the fixed installation of slide calliper rule and measurement pin more reliable.On the side of groove 1c, vertically have two with this side perpendicular, and connect the screw 1d of this lateral column body 1a, the trip bolt 3 that the head periphery is provided with anti-skidding line is housed among this screw 1d, so that with its turn, and two planes up and down of the another side of groove 1c and flange 1b are perpendicular, by trip bolt 3 vertical side of not opening screw among the card base trailing flank of used slide calliper rule and the groove 1c is fitted, and card base is fixed.
As shown in Figure 3, the present invention is used with vernier caliper 4 in couples, and when the screw on the left side measurement pin 1 was opened on the leading flank of groove 1c, the opening of groove 1c was positioned at the left side of shaft 1a; When the screw on the right side measurement pin 2 was opened on the leading flank of this groove 2c, the opening of groove 2c was positioned at shaft 2a right side.Measuring the i.e. left side measurement of pin pin 1 with two is enclosed within on two card bases of vernier caliper 4 with the right pin 2 of measuring, then pin 1 being measured on a left side is lower plane with the right flange bottom surface of measuring pin 2, leveling is on same surface level, by trip bolt 3 trailing flank of 4 liang of card bases of vernier caliper is fitted with trailing flank and the right trailing flank of measuring groove 2c in the pin 2 that groove 1c in the pin 1 is measured on a left side respectively, and two card bases are compressed, thereby make a left side measure pin 1 and pin is surveyed in right extension of measuring pin 2 and become 4 liang of card bases of slide calliper rule.
The present invention is work like this:
Before the measurement, at first the card base with slide calliper rule inserts two grooves of measuring pin respectively, then two disk-shaped flange bottom surfaces of measuring pin are transferred on same surface level, then trip bolt is tightened, the trailing flank of card base is fitted with the trailing flank of measuring in the pin groove, thereby the measurement pin is fixed on the card base of slide calliper rule, and pin is surveyed in the extension that becomes the slide calliper rule card base.
During measurement, earlier, write down the reading D of slide calliper rule this moment with the slip gauge group length that the kind of calliper of measuring pin is combined as footpath nominal size at the bottom of the piston ring groove is installed
1With this as standard value, again two flanges of measuring pin are inserted the piston ring groove until contacting with bottom land from the both sides of piston, one measurement pin and piston ring groove bottom are offseted, swing simultaneously another gently and measure pin, the maximal value D that is produced when finding two axial lines of measuring the axial line of pin and piston to be positioned at same plane
2, with this reading D
2The standard value D that is drawn with previous measurement slip gauge group
1Compare, thereby judge measured value whether in margin tolerance.
During measurement, also can only replace the slip gauge group with a slip gauge near tested groove bottom diameter nominal size, with this slip gauge of kind of calliper of measuring pin is installed, D takes reading
0, measure the end footpath D of piston ring groove then with preceding method
2, the nominal size in footpath at the bottom of the nominal size of this slip gauge and the piston ring groove is subtracted each other the difference DELTA that draws
DCompensate to reading D
2, draw numerical value D
3, and with numerical value D
3With reading D
0Compare, thereby judge measured value whether in margin tolerance.
Use the present invention also can measure the inner groove diameter of endoporus, flange two outsides insertion inner groove of measuring on the pin is got final product, its testing process is identical with outer groove.
Claims (4)
1. testing tool of measuring diameter of ring groove, comprise vernier caliper (4), it is characterized in that: be separately installed with the identical measurement pin of structure on two card bases of described vernier caliper (4), described measurement pin is made of columniform shaft (1a) and the thin disk-shaped flange (1b) that is positioned at the coaxial setting of shaft (1a) end; Axially be provided with the groove (1c) that connects flange (1b) on described shaft (1a), the two sides of this groove (1c) are parallel to each other, and the center line of described shaft (1a) and flange (1b) is positioned on the axial plane of symmetry of described groove (1c); On a side of described groove (1c), have perpendicular with this side, and connect the screw (1d) of this lateral column body (1a), trip bolt (3) is housed in this screw (1d), and two planes up and down of the another side of described groove (1c) and described flange (1b) are perpendicular.
2. the testing tool of measurement diameter of ring groove according to claim 1 is characterized in that: described screw (1d) axially is provided with two along shaft (1a).
3. the testing tool of measurement diameter of ring groove according to claim 1 is characterized in that: the head periphery of described trip bolt (3) is provided with anti-skidding line.
4. the testing tool of measurement diameter of ring groove according to claim 1 is characterized in that: described shaft (1a) and flange (1b) are structure as a whole, and are made by carbon tool steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100694958A CN101545749B (en) | 2008-03-24 | 2008-03-24 | Device for measuring diameter of circular groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100694958A CN101545749B (en) | 2008-03-24 | 2008-03-24 | Device for measuring diameter of circular groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101545749A CN101545749A (en) | 2009-09-30 |
| CN101545749B true CN101545749B (en) | 2011-01-05 |
Family
ID=41193027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100694958A Expired - Fee Related CN101545749B (en) | 2008-03-24 | 2008-03-24 | Device for measuring diameter of circular groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101545749B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012203A (en) * | 2010-11-11 | 2011-04-13 | 无锡明珠增压器制造有限公司 | Inner diameter measurement auxiliary sleeve for vernier caliper |
| CN102012205A (en) * | 2010-11-11 | 2011-04-13 | 无锡明珠增压器制造有限公司 | Auxiliary sleeve of depth gauge for measuring hole internal groove |
| CN106247903A (en) * | 2016-08-03 | 2016-12-21 | 河南航天精工制造有限公司 | Groove inner diameter measurement frock and there is the survey tool of this measurement frock |
| CN110017746A (en) * | 2019-03-29 | 2019-07-16 | 中铁工程装备集团隧道设备制造有限公司 | A kind of development machine hobboing cutter cutter ring detecting tool |
| CN109990688B (en) * | 2019-05-06 | 2024-04-09 | 广西玉柴机器股份有限公司 | Universal detection device for bottom diameter of piston ring groove |
| CN112033257B (en) * | 2020-09-09 | 2022-03-22 | 中国航发贵州黎阳航空动力有限公司 | Blade apex curved surface attenuate department normal direction thickness measurement measuring tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2036269U (en) * | 1988-11-01 | 1989-04-19 | 张福增 | Vernier caliper |
| CN2062432U (en) * | 1989-10-10 | 1990-09-19 | 袁称发 | Thread vernier caliper |
| CN2474986Y (en) * | 2001-04-03 | 2002-01-30 | 程漠贵 | Vernier caliper |
-
2008
- 2008-03-24 CN CN2008100694958A patent/CN101545749B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2036269U (en) * | 1988-11-01 | 1989-04-19 | 张福增 | Vernier caliper |
| CN2062432U (en) * | 1989-10-10 | 1990-09-19 | 袁称发 | Thread vernier caliper |
| CN2474986Y (en) * | 2001-04-03 | 2002-01-30 | 程漠贵 | Vernier caliper |
Non-Patent Citations (2)
| Title |
|---|
| 罗龙泉.简易卡槽检测器.《机械制造》.1991,(第12期),35. * |
| 黄建华.利用游标卡尺测量孔槽深度.《企业技术开发》.2002,(第2期),38. * |
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| Publication number | Publication date |
|---|---|
| CN101545749A (en) | 2009-09-30 |
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Granted publication date: 20110105 Termination date: 20160324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |