CN101451810A - High precision cylinder helical compression spring squareness detecting method - Google Patents
High precision cylinder helical compression spring squareness detecting method Download PDFInfo
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- CN101451810A CN101451810A CNA2008100802238A CN200810080223A CN101451810A CN 101451810 A CN101451810 A CN 101451810A CN A2008100802238 A CNA2008100802238 A CN A2008100802238A CN 200810080223 A CN200810080223 A CN 200810080223A CN 101451810 A CN101451810 A CN 101451810A
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- compression spring
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Abstract
The invention relates to a detecting method of a high-accuracy cylindrical helical compression spring, specifically to a method for detecting the verticality of the high-accuracy cylindrical helical compression spring. The detecting method improves quality detection standards of the verticality of the compression spring to the utmost extent, so that the detected compression spring can satisfy the operating requirements of various application situations. The detecting method comprises following detecting steps: in the state without loading, the detected compression spring is horizontally arranged in the horizontal V-shaped groove of the spring placing frame, one end face of the spring reclines against a wide seating square, the spring is turned around one circle, and meanwhile a feeler gauge is used to detect the distance between the end face of the spring and the wide seating square, and then the maximum value is taken as the vertical deviation of the end face of the spring; the spring is overturned, the vertical deviation of another end face of the spring is measured in the same method, and a larger value between the two vertical deviations of the two end faces is taken as the vertical limit deviation of the compression spring. The detecting method is convenient and feasible. And the vertical deviation of the compression spring can accurate to within 0.10mm.
Description
Technical field
The present invention relates to the detection method of high precision cylindroid helical-coil compression spring, specifically is a kind of detection method of high precision cylinder helical compression spring squareness.
Background technology
The detection method of existing cylindroid helical-coil compression spring realizes with high-precision flat board, wide seating square and clearance gauge, concrete measuring method is as follows: shown in accompanying drawing 1,2, under no load condition, vertically be placed on tested compression spring on the flat board, and the wide seating square that reclines, tested compression spring is rotated a week, rotating simultaneously, measure distance between tested compression spring top circle end and the wide seating square with clearance gauge, get big value as the perpendicularity deviation of compression spring center line with respect to compression spring bottom turns end; Tested compression spring overturns, compression spring is placed down on the flat board with another circle end court, the same distance of measuring between tested compression spring top circle end and the wide seating square is got big value as the perpendicularity deviation of compression spring center line with respect to compression spring bottom turns end; To get higher value in two perpendicularity deviations as the verticality limit deviation of this compression spring.At present, standard GB 1239.2-89 is very wide to the parameter area requirement of compression spring verticality limit deviation, and therefore, the verticality of some special high precision stage clips detects through existing detection method and satisfies the GB requirement, but when concrete the use, discontented full border request for utilization.For example: be used for flow or pressure controlled high precision compression spring, when it uses, have outward sleeve, in have piston, end face to be provided with baffle ring, for satisfying request for utilization, the bus linearity of compression spring, end face flatness, end face are very high with respect to the isoparametric accuracy requirement of the verticality of axis; And be example with standard GB 1239.2-89 for 1 the highest class precision grade of compression spring verticality, promptly verticality satisfies 0.02H
0(1 ° 08 ' 25 "), H
0Be the compression spring free height): for H
01 class precision grade verticality limit deviation of=10mm compression spring is 0.02 * 10=0.20mm; But for H
01 class precision grade verticality limit deviation of=46.7mm compression spring is 0.93mm, find out that obviously accuracy of detection is too low, though in actual production, perpendicularity deviation can reach 0.20-0.30mm, satisfy GB fully, but perpendicularity deviation is still bigger, can cause the friction of compression spring and its internal piston, outer sleeve, therefore in use clamping stagnation still can take place in spring, adjusting to fuel flow rate or gaseous tension causes bigger fluctuation, influence the adjusting of flow or pressure, can not satisfy request for utilization.
Summary of the invention
The present invention so that the compression spring after testing satisfies the request for utilization of various application scenarios, provides a kind of detection method of high precision cylinder helical compression spring squareness in order to improve the quality inspection standard of compression spring verticality to the full extent.
The present invention adopts following technical scheme to realize: the detection method of high precision cylindroid helical-coil compression spring, the detection step is: a, place on 0 grade of platform the high precision wide seating square and on be provided with the spring rack of level to the V-type groove, during placement, the level that makes wide seating square and spring rack to the V-type groove over against;
B, under tested compression spring no load condition (being free state), tested compression spring level is placed on the level of spring rack in the V-type groove, and make the tested compression spring one end end face wide seating square that reclines, tested compression spring is rotated a week, rotating simultaneously, measure distance between tested compression spring end face and the wide seating square with clearance gauge, get the perpendicularity deviation △ of maximal value as tested this end face of compression spring; The tested compression spring that overturns is measured the perpendicularity deviation △ of tested compression spring other end in the same way, gets higher value among the both ends of the surface perpendicularity deviation △ as the verticality limit deviation of this compression spring.
Compared with prior art, the invention provides a kind of new method that detects the compression spring verticality, this method realizes tested compression spring horizontal positioned by being provided with level to the spring rack of V-type groove, then with the axial line of tested compression spring as benchmark, detect the perpendicularity deviation of compression spring both ends of the surface with respect to the compression spring axial line, entire method is easy, feasible; The compression spring perpendicularity deviation that detects by this method can be as accurate as in the 0.10mm, and then has improved the quality standard of compression spring product, makes the compression spring after check can satisfy the request for utilization of each application scenario.Simultaneously detection method of the present invention can provide technical support for the performance parameter mark and the manufacture method of high precision compression spring, enriches on the mode of production of special compression spring and the national standard mask method to spring parameter.
Description of drawings
Fig. 1 is the synoptic diagram of existing high precision cylinder helical compression spring squareness detection method;
Fig. 2 is the verticality mark figure with detection method detection springs verticality shown in Figure 1;
Fig. 3 is the synoptic diagram of high precision cylinder helical compression spring squareness detection method of the present invention;
Fig. 4 is the verticality mark figure with detection method detection springs verticality shown in Figure 3;
Fig. 5 is the side view of Fig. 3 medi-spring rack;
Among the figure: 1-0 level platform; The 2-wide seating square; The 3-level is to the V-type groove; 4-spring rack; The tested compression spring of 5-.
Specific implementation method
Shown in Fig. 3-5, the detection method of high precision cylindroid helical-coil compression spring, the detection step is: a, place on 0 grade of platform 1 high precision wide seating square 2 and on be provided with the spring rack 4 of level to V-type groove 3, during placement, the level that makes wide seating square 2 and spring rack 4 to V-type groove 3 over against; B, under tested compression spring 5 no load conditions (being free state), tested compression spring 5 levels are placed on the level of spring rack in V-type groove 3, and make the tested compression spring 5 one end end faces wide seating square 2 that reclines, tested compression spring 5 is rotated a week, rotating simultaneously, measure distance between tested compression spring 5 end faces and the wide seating square 2 with clearance gauge, get the perpendicularity deviation △ of maximal value as tested compression spring 5 these end faces; The tested compression spring 5 that overturns is measured the perpendicularity deviation △ of tested compression spring 5 other ends in the same way, gets higher value among the both ends of the surface perpendicularity deviation △ as the verticality limit deviation of this compression spring 5.
Claims (1)
1, a kind of detection method of precision cylindroid helical-coil compression spring is characterized in that detecting step and is:
A, 0 grade of platform (1) go up to place high precision wide seating square (2) and on be provided with the spring rack (4) of level to V-type groove (3), during placement, the level that makes wide seating square (2) and spring rack (4) to V-type groove (3) over against;
B, under tested compression spring (5) no load condition, tested compression spring (5) level is placed on the level of spring rack in V-type groove (3), and make tested compression spring (5) the one end end faces wide seating square (2) that reclines, tested compression spring (5) is rotated a week, rotating simultaneously, measure distance between tested compression spring (5) end face and the wide seating square (2) with clearance gauge, get the perpendicularity deviation △ of maximal value as this end face of tested compression spring (5); The tested compression spring (5) that overturns is measured the perpendicularity deviation △ of tested compression spring (5) other end in the same way, gets higher value among the both ends of the surface perpendicularity deviation △ as the verticality limit deviation of this compression spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100802238A CN101451810A (en) | 2008-12-20 | 2008-12-20 | High precision cylinder helical compression spring squareness detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100802238A CN101451810A (en) | 2008-12-20 | 2008-12-20 | High precision cylinder helical compression spring squareness detecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101451810A true CN101451810A (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100802238A Pending CN101451810A (en) | 2008-12-20 | 2008-12-20 | High precision cylinder helical compression spring squareness detecting method |
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| CN (1) | CN101451810A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943560A (en) * | 2010-08-27 | 2011-01-12 | 天津机辆轨道交通装备有限责任公司 | Cylindrical deviation detector of cylindrical helical spring |
| CN102954886A (en) * | 2012-11-06 | 2013-03-06 | 南京工程学院 | Device for measuring stiffness of pilot spring |
| CN105180782A (en) * | 2015-10-16 | 2015-12-23 | 重庆钧顶机械制造有限公司 | Reset spring angle detection tool |
| CN105973132A (en) * | 2016-06-23 | 2016-09-28 | 湖北三江航天红阳机电有限公司 | Measurement device |
-
2008
- 2008-12-20 CN CNA2008100802238A patent/CN101451810A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943560A (en) * | 2010-08-27 | 2011-01-12 | 天津机辆轨道交通装备有限责任公司 | Cylindrical deviation detector of cylindrical helical spring |
| CN102954886A (en) * | 2012-11-06 | 2013-03-06 | 南京工程学院 | Device for measuring stiffness of pilot spring |
| CN102954886B (en) * | 2012-11-06 | 2015-06-03 | 南京工程学院 | Device for measuring stiffness of pilot spring |
| CN105180782A (en) * | 2015-10-16 | 2015-12-23 | 重庆钧顶机械制造有限公司 | Reset spring angle detection tool |
| CN105180782B (en) * | 2015-10-16 | 2019-01-18 | 重庆钧顶机械制造有限公司 | Return spring angle detector |
| CN105973132A (en) * | 2016-06-23 | 2016-09-28 | 湖北三江航天红阳机电有限公司 | Measurement device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090610 |