CN105180751A - Device and method for measuring outer diameter and roundness of large-diameter gas cylinder - Google Patents
Device and method for measuring outer diameter and roundness of large-diameter gas cylinder Download PDFInfo
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- CN105180751A CN105180751A CN201510744115.6A CN201510744115A CN105180751A CN 105180751 A CN105180751 A CN 105180751A CN 201510744115 A CN201510744115 A CN 201510744115A CN 105180751 A CN105180751 A CN 105180751A
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Abstract
The invention belongs to the field of measurement technologies, and discloses a device and a method for measuring the outer diameter and roundness of a large-diameter gas cylinder. The device for measuring the outer diameter and roundness of the large-diameter gas cylinder disclosed by the invention comprises a rigid right-angled frame (1) composed of a vertical bar (12) and a cross-bar (11) located at the lower end of the vertical bar, wherein the upper end of the vertical bar (12) is fixedly connected with a sliding chute I (6) horizontally arranged; a cantilever cross-bar (4) is located at the upper end of the vertical bar (12), and arranged in parallel to the cross-bar (11). The device also comprises a graduated scale (3) parallel to the vertical bar (12), wherein scales of the graduated scale (3) are sequentially increased from top to bottom; the upper end of the graduated scale (3) is slidably cooperated with a sliding chute II (5) on the cantilever cross-bar; and the lower end of the graduated scale (3) is connected with a strip block (2) parallel to the cross-bar (11). The device and method disclosed by the invention play a positive role in the geometrical quality inspection and quality control of the outer diameter and roundness of the gas cylinder subjected to heat treatment, the versatility is good, and the detection cost is reduced.
Description
Technical field
The invention belongs to field of measuring technique, relate to measurement mechanism and the measuring method of a kind of major diameter gas cylinder external diameter and circularity, be specifically related to diameter and be greater than the major diameter gas cylinder external diameter of 200mm and the measurement mechanism of circularity and measuring method.
Background technology
In emerging energy accumulating pressure vessel (as large-diameter seamless gas cylinder) manufacture process, according to the requirement of technology, need through bulk heat treatmet operation, because in heat treatment process, stress release can produce distortion, the original physical dimension of product is changed, therefore need the requirement according to product manufacturing pattern, Its Relevant Technology Standards specification etc. after heat treatment, the physical dimension such as external diameter and circularity of gas cylinder is measured, to confirm that whether product is qualified.
In the prior art, enter the seamless gas cylinder after factory's weldless steel tube and thermal treatment all to require to carry out external diameter and roundness measurement, at present in the production scene of factory, due to larger many employings calliper and the ruler cooperation when measuring of size, tested cylindrical shell chooses some test points, measure external diameter value, find out the difference of maxima and minima, be the deviation from circular from of this cylindrical shell.Although this method is simple, precision is not high, and the human factor error based on operator is comparatively large, and measures inefficiency, first needs to find testee external diameter accurately with calliper both sides head end, then measures the distance of both sides head end with ruler.Because both sides head end and testee surface are point cantact, both sides head end line is difficult to determine by the some position in the testee center of circle, causes measuring the technical matterss such as efficiency is low, low precision.
In the finished product technology of current existing measuring workpieces external diameter and circularity, the overwhelming majority concentrates on the gas cylinder that diameter is no more than 200mm and measures, for the test exceeding this scope, and the most general mode being calliper and ruler and matching.Other small part non-universal detection technique, can be divided into laser type to measure and Mechanical measurement two class form substantially; This wherein, utilize the device more complicated of laser means measuring workpieces circularity, disclosed in CN104567714A " portable noncontact roundness measuring instrument ", not only on shell, laser tube need be housed, and will embed liquid crystal display and fixation of C CD in two sides, enclosure also needs to be provided with DSP image processor, not only cost is higher, and require that personnel have very strong electronic devices and components knowledge, be more suitable for noncontact scene, be not easy to carry out Quick Measurement in gas cylinder production scene.Utilize the device of mechanical means measuring workpieces circularity, there is following problem: the first, very large with such plant bulk that large-diameter workpiece is supporting, take space, a large amount of production scene, and add lifting number of times, increased risk, disclosed in CN104567624A " pipe ellipticity measurement device ", in measuring process, need be lifted on device support stand by pipe, rotate detection after locking, large scale pipe rotates difficulty, and lift inconvenience up and down, complex operation and exist frequently lift risk; Second, actual numerical value cannot be recorded, whether qualified can only judge, disclosed in CN202188833U " roundness measurement instrument of steel pipe ", in measuring process, sensor is around steel pipe 360 ° rotation, when steel pipe is undesirable, the automatic red warning of grating scale displacement display, qualified, show green light; 3rd, the more difficult realization of actual motion, disclosed in CN103542830A " roundness measuring instrument and measuring method thereof ", in measuring process, pipe fitting is vertically placed, and the pipe fitting larger for length cannot realize; And CN201780083U disclosed " a kind of survey instrument measuring diameter of steel tube extreme value and ovality ", need in measuring process artificial by measurement mechanism along pipe fitting outer wall rotating 360 degrees, be difficult to ensure that claw track cross section is vertical with steel pipe main shaft, and not easily realize by 360 degree of rotations of pipe fitting actual display case restriction measurement mechanism.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is the measurement mechanism and the measuring method that propose a kind of major diameter gas cylinder external diameter and circularity.
The present invention adopts following technical scheme for completing above-mentioned purpose:
A measurement mechanism for major diameter gas cylinder external diameter and circularity, described measurement mechanism has the rigidity right angle frame placing gas cylinder to be detected; Described rigidity right angle frame is made up of vertical rod and the cross bar that is positioned at vertical rod lower end; The upper end of described vertical rod is fixedly connected with the chute I slided in order to cantilever beam; Described chute I is horizontally disposed with; Described cantilever beam is positioned at the upper end of vertical rod, and is parallel to described cross bar setting; Described cantilever beam can along described chute I horizontal slip, and fastening by trip bolt I; Described measurement mechanism also includes rule; Described rule is parallel to described vertical rod and arranges; The scale of described rule increases from top to bottom successively; Chute II in the upper end of described rule and cantilever beam is slidably matched, and can move up and down along chute II; The lower end of described rule is connected with the bar blocks in order to contact with the outside wall surface of gas cylinder to be detected; The described cross bar that described bar blocks is parallel to rigidity right angle frame is arranged; Described bar blocks can move up and down with described rule, detects gas cylinder external diameter to be detected and circularity.
Utilize the method that the measurement mechanism of above-mentioned a kind of major diameter gas cylinder external diameter and circularity is measured the external diameter of major diameter gas cylinder and circularity, its concrete steps are as follows:
1) first, according to the theoretical diameter of gas cylinder to be detected, the cantilever beam described in adjustment makes the radius of the distance between rule with vertical rod described in rigidity right angle frame and gas cylinder to be detected identical, then described cantilever beam is fixed on the upper end of vertical rod;
2) using the reading of the intersection rule of original state rule and cantilever beam as initial value; Then move up described rule, makes the lower surface of bar blocks be greater than the diameter of gas cylinder to be detected apart from the distance of cross bar described in rigidity right angle frame, and described rule opposing cantilevers cross bar is fixed;
3) gas cylinder to be detected is placed on rigidity right angle frame, and the cross bar of rigidity right angle frame, vertical rod are fitted with the outside wall surface of gas cylinder to be detected respectively;
4) move down described rule, the outside wall surface of the lower surface and gas cylinder to be detected being connected to rule lower end bar blocks is fitted; Now the reading of the intersection rule of rule and cantilever beam is as end value; The end value of rule and the difference of initial value are the external diameter value of gas cylinder to be detected;
5) around gas cylinder to be detected described measurement mechanism in rotary moving, the contact position of bar blocks and gas cylinder outside wall surface to be detected is changed, thus the reading of rule is changed, thus record full-scale reading and the least count of gas cylinder external diameter to be detected, and record; Namely the difference of both calculating obtains the bottle circularity numerical value at position measured by gas cylinder to be detected.
The measurement mechanism of a kind of major diameter gas cylinder external diameter that the present invention proposes and circularity and measuring method, adopt technique scheme, no matter pipe diameter size, all can measure, solve major diameter gas cylinder under prior art and adopt calliper and ruler compounding practice is inconvenient, digital independent is more difficult, personal error is large, and can not determine the problem of measuring point external diameter maximal value, minimum value and circularity better; The present invention can also measure external diameter and the circularity of major diameter gas cylinder easily and accurately in gas cylinder production scene; External diameter data can directly read, and intuitively, accurately, reduce survey crew to greatest extent to the artificial interference of result, realize the unification of measurement precision and economic serviceability preferably; Achieve and the production size quality of major diameter gas cylinder is checked, and then be convenient to engineering technical personnel and judge whether it meets technical requirement, to gas cylinder external diameter after thermal treatment and circularity almost T-stable inspection and quality control play a positive role, versatility is good, reduces testing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is using state figure of the present invention.
In figure, 1, rigidity right angle frame, 2, bar blocks, 3, rule, 4, cantilever beam, 5, chute II, 6, chute I, 7, trip bolt II, 8, trip bolt I, 9, handle, 10, gas cylinder to be detected, 11, cross bar, 12, vertical rod.
Embodiment
With specific embodiment, the present invention is illustrated by reference to the accompanying drawings:
As shown in Figure 1, the measurement mechanism of a kind of major diameter gas cylinder external diameter and circularity, described measurement mechanism has the rigidity right angle frame 1 placing gas cylinder to be detected; Described rigidity right angle frame 1 is made up of vertical rod 12 and the cross bar 11 being positioned at vertical rod lower end; The upper end of described vertical rod 12 is fixedly connected with the chute I 6 slided in order to cantilever beam 4; Described chute I 6 is horizontally disposed with; Described cantilever beam 4 is positioned at the upper end of vertical rod 12, and is parallel to described cross bar 11 and arranges; Described cantilever beam 4 can along described chute I 6 horizontal slip, and fastening by trip bolt I 8; Described measurement mechanism also includes rule 3; Described rule 3 is parallel to described vertical rod 12 and arranges; The scale of described rule 3 increases from top to bottom successively; Chute II 5 in the upper end of described rule 3 and cantilever beam is slidably matched, and can move up and down along chute II 5; The lower end of described rule 3 is connected with the bar blocks 2 in order to contact with the outside wall surface of gas cylinder to be detected; The described cross bar 11 that described bar blocks 2 is parallel to rigidity right angle frame is arranged; Described bar blocks 2 can move up and down with described rule 3, detects gas cylinder external diameter to be detected and circularity; The vertical rod 12 of rigidity right angle frame 1 is provided with handle 9, testing staff can be facilitated to portably use.
As shown in Figure 2, utilize the method that the measurement mechanism of above-mentioned a kind of major diameter gas cylinder external diameter and circularity is measured the external diameter of major diameter gas cylinder and circularity, its concrete steps are as follows:
1) first, according to the theoretical diameter of gas cylinder 10 to be detected, the cantilever beam 4 described in adjustment makes the radius of the distance between rule 3 with vertical rod 12 described in rigidity right angle frame and gas cylinder to be detected identical, then described cantilever beam 4 is fixed on the upper end of vertical rod 12;
2) using the reading of original state rule 3 and the intersection rule of cantilever beam 4 as initial value; In this embodiment, under original state, rule 3 is zero with the reading of the intersection rule of cantilever beam 4, and now, described bar blocks 2 fits with described cross bar; Then the rule 3 moving up described, makes the lower surface of bar blocks 2 be greater than the diameter of gas cylinder 10 to be detected apart from the distance of cross bar described in rigidity right angle frame, and described rule 3 opposing cantilevers cross bar 4 is fixed;
3) gas cylinder 10 to be detected is placed on rigidity right angle frame 1, and the cross bar 11 of rigidity right angle frame 1, vertical rod 12 are fitted with the outside wall surface of gas cylinder 10 to be detected respectively;
4) move down described rule 3, the outside wall surface of the lower surface and gas cylinder to be detected 10 being connected to rule 3 lower end bar blocks 2 is fitted; Now rule 3 and the reading of the intersection rule of cantilever beam 4 are as end value; The end value of rule and the difference of initial value are the external diameter value of gas cylinder to be detected;
5) around gas cylinder to be detected described measurement mechanism in rotary moving, bar blocks 2 is changed with the contact position of gas cylinder 10 outside wall surface to be detected, thus the reading of rule 3 is changed, thus record full-scale reading and the least count of gas cylinder external diameter to be detected, and record; Namely the difference of both calculating obtains the bottle circularity numerical value at position measured by gas cylinder to be detected.
Regulate the position of contact bar blocks 2, and locate by trip bolt 8, can various outer diameter be measured.
When measurement range is in comparatively close limit, during as 400mm-700mm, it is use operation of being more convenient for, the comparatively down scale of rule can be clipped, make bar blocks and the cross bar keeping parallelism of rigidity right angle frame and do not contact, in order to avoid rule extension elongation is long when using, affecting to some extent.
Below be only embody rule example of the present invention, protection scope of the present invention is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all belongs within rights protection scope of the present invention.
Claims (2)
1. a measurement mechanism for major diameter gas cylinder external diameter and circularity, is characterized in that: described measurement mechanism has the rigidity right angle frame (1) placing gas cylinder to be detected; Described rigidity right angle frame (1) is made up of vertical rod (12) and the cross bar (11) that is positioned at vertical rod lower end; The upper end of described vertical rod (12) is fixedly connected with the chute I (6) slided in order to cantilever beam (4); Described chute I (6) is horizontally disposed with; Described cantilever beam (4) is positioned at the upper end of vertical rod (12), and is parallel to described cross bar (11) setting; Described cantilever beam (4) can along described chute I (6) horizontal slip, and fastening by trip bolt I (8); Described measurement mechanism also includes rule (3); Described rule (3) is parallel to described vertical rod (12) and arranges; The scale of described rule (3) increases from top to bottom successively; Chute II (5) in the upper end of described rule (3) and cantilever beam is slidably matched, and can move up and down along chute II (5); The lower end of described rule (3) is connected with the bar blocks (2) in order to contact with the outside wall surface of gas cylinder to be detected; The described cross bar (11) that described bar blocks (2) is parallel to rigidity right angle frame is arranged; Described bar blocks (2) can move up and down with described rule (3), detects gas cylinder external diameter to be detected and circularity.
2. the method utilizing the measurement mechanism of a kind of major diameter gas cylinder external diameter described in claim and circularity to measure the external diameter of major diameter gas cylinder and circularity, is characterized in that: the concrete steps of measuring method are as follows:
1) first, according to the theoretical diameter of gas cylinder to be detected (10), cantilever beam (4) described in adjustment makes rule (3) identical with the radius of the distance described in rigidity right angle frame between vertical rod (12) and gas cylinder to be detected, then described cantilever beam (4) is fixed on the upper end of vertical rod (12);
2) using the reading of the intersection rule of original state rule (3) and cantilever beam (4) as initial value; Then the rule (3) moving up described, makes the lower surface of bar blocks (2) be greater than the diameter of gas cylinder to be detected (10) apart from the distance of cross bar described in rigidity right angle frame, and described rule (3) opposing cantilevers cross bar (4) is fixed;
3) gas cylinder to be detected (10) is placed on rigidity right angle frame (1), and the cross bar of rigidity right angle frame (1) (11), vertical rod (12) are fitted with the outside wall surface of gas cylinder to be detected (10) respectively;
4) move down described rule (3), the outside wall surface of the lower surface and gas cylinder to be detected (10) being connected to rule (3) lower end bar blocks (2) is fitted; Now rule (3) and the reading of the intersection rule of cantilever beam (4) are as end value; The end value of rule and the difference of initial value are the external diameter value of gas cylinder to be detected;
5) around gas cylinder to be detected described measurement mechanism in rotary moving, bar blocks (2) is changed with the contact position of gas cylinder to be detected (10) outside wall surface, thus the reading of rule (3) is changed, thus record full-scale reading and the least count of gas cylinder external diameter to be detected, and record; Namely the difference of both calculating obtains the bottle circularity numerical value at position measured by gas cylinder to be detected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510744115.6A CN105180751B (en) | 2015-11-05 | 2015-11-05 | The measurement apparatus and measuring method of major diameter gas cylinder external diameter and circularity |
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| CN201510744115.6A CN105180751B (en) | 2015-11-05 | 2015-11-05 | The measurement apparatus and measuring method of major diameter gas cylinder external diameter and circularity |
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| CN105180751B CN105180751B (en) | 2018-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705918A (en) * | 2017-03-23 | 2017-05-24 | 上海威纳工程技术有限公司 | Precise measurement instrument and method for internal and external diameters of large-diameter seal ring |
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| US3754335A (en) * | 1971-04-07 | 1973-08-28 | D Culbertson | Instrument for determining the diameter or radius of an object of circular cross section |
| CN101201238A (en) * | 2007-10-31 | 2008-06-18 | 浙江四通轴承集团有限公司 | Outer diameter edge circle measurer |
| CN101886902A (en) * | 2010-06-25 | 2010-11-17 | 高佳太阳能股份有限公司 | Tool for detecting quartz crucible |
| CN201837348U (en) * | 2010-10-18 | 2011-05-18 | 亚大塑料制品有限公司 | Tool for measuring non-circularity of outer diameter of plastic pipe |
| CN203337061U (en) * | 2013-07-18 | 2013-12-11 | 福建龙生机械有限公司 | Thin-walled cylinder sleeve diameter and circularity rapid detection device |
| CN104019721A (en) * | 2014-06-20 | 2014-09-03 | 安徽马钢自动化信息技术有限公司 | Steel dimension measuring apparatus |
| CN204404956U (en) * | 2014-12-25 | 2015-06-17 | 天水星火机床有限责任公司 | Dynamic external diameter measuring device |
| CN205102725U (en) * | 2015-11-05 | 2016-03-23 | 洛阳双瑞特种装备有限公司 | Measurement device for major diameter gas cylinder external diameter and circularity |
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2015
- 2015-11-05 CN CN201510744115.6A patent/CN105180751B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754335A (en) * | 1971-04-07 | 1973-08-28 | D Culbertson | Instrument for determining the diameter or radius of an object of circular cross section |
| CN101201238A (en) * | 2007-10-31 | 2008-06-18 | 浙江四通轴承集团有限公司 | Outer diameter edge circle measurer |
| CN101886902A (en) * | 2010-06-25 | 2010-11-17 | 高佳太阳能股份有限公司 | Tool for detecting quartz crucible |
| CN201837348U (en) * | 2010-10-18 | 2011-05-18 | 亚大塑料制品有限公司 | Tool for measuring non-circularity of outer diameter of plastic pipe |
| CN203337061U (en) * | 2013-07-18 | 2013-12-11 | 福建龙生机械有限公司 | Thin-walled cylinder sleeve diameter and circularity rapid detection device |
| CN104019721A (en) * | 2014-06-20 | 2014-09-03 | 安徽马钢自动化信息技术有限公司 | Steel dimension measuring apparatus |
| CN204404956U (en) * | 2014-12-25 | 2015-06-17 | 天水星火机床有限责任公司 | Dynamic external diameter measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705918A (en) * | 2017-03-23 | 2017-05-24 | 上海威纳工程技术有限公司 | Precise measurement instrument and method for internal and external diameters of large-diameter seal ring |
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| CN105180751B (en) | 2018-02-09 |
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Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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