CN202158826U - Measuring device for measuring inner diameter tolerance of circular ring body - Google Patents
Measuring device for measuring inner diameter tolerance of circular ring body Download PDFInfo
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- CN202158826U CN202158826U CN2011202213199U CN201120221319U CN202158826U CN 202158826 U CN202158826 U CN 202158826U CN 2011202213199 U CN2011202213199 U CN 2011202213199U CN 201120221319 U CN201120221319 U CN 201120221319U CN 202158826 U CN202158826 U CN 202158826U
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- place kick
- measuring
- balancing stand
- measurement mechanism
- diameter
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Abstract
A measuring device for measuring an inner diameter tolerance of a circular ring body comprises a measuring instrument (5), a first locating ball (1), a locating sleeve (2), a pressure spring (3), a cover plate (4), a measuring rod (6), a balancing frame (7), a second locating ball (8), a limiting sleeve (9) and a radially moving locating ball (10), wherein a spacing between centers of the first locating ball and the second locating ball which are fixed at two ends of the balancing frame is C, the minimum point of the radially moving locating ball which is fixed by the measuring rod and the limiting sleeve along a middle point of the balancing frame, and a line between the minimum points of the first locating ball and the second locating ball can form a height difference h, then the radius r of the circular ring body can be obtained according to the formula h = r - 1/2 ( 4r<2> - C<2>) <1/2>. The measuring instrument is connected with the measuring rod through the cover plate, the locating sleeve and the pressure spring, and the difference of absolute values of a measured value read by the measuring instrument and an original value is the tolerance of the inner diameter 2r of the circular ring body. The measuring device of the utility model has the advantages of simple structure, portability, and convenient and fast measurement.
Description
Technical field
The utility model belongs to the survey instrument technical field and relates to, and refers more particularly to a kind of measurement mechanism of measuring the torus id tolerance.
Background technology
Torus for than big specification adopts pipe chi or micrometer inside caliper usually like the id tolerance of enclosing class, cover class, bearing class; Toric id tolerance measuring accuracy and accuracy are directly connected to each item performance index, also are related to and the match tolerance fit of parts of torus.
Usually the pipe chi is with a hollow stainless-steel tube; The one of which end connects bulb and fixing dial gauge of the other end of similar half steel ball; To manage chi elder generation after adjusting size on the standard meter, and lie in a horizontal plane in toric internal diameter end face to the pipe chi again and measure.
Though it is directly perceived that above-mentioned use pipe chi or micrometer inside caliper are measured toric way; Simple to operate, but the amount of deflection of hollow steel pipe unavoidably can have influence on the accuracy of measurement, and when measuring, need two people to cooperate completion; Labor capacity is bigger, and work efficiency is lower.
Summary of the invention
For addressing the above problem; The utility model has designed a kind of measurement mechanism of measuring the torus id tolerance; This measurement mechanism can improve the measurement accuracy and the degree of accuracy of toric id tolerance; And can improve the work efficiency of measurement, measurement mechanism has simple in structure, is prone to the characteristics of adjustment.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of measurement mechanism of measuring the torus id tolerance; Toric internal diameter is set at 2r, and r is toric radius, and this measurement mechanism includes measurement instrument; Said measurement instrument or dial gauge; Or clock gauge, the measuring accuracy of its measurement mechanism is 0.01mm when said measurement instrument is dial gauge, the measuring accuracy of its measurement mechanism is 0.001mm when said measurement instrument is clock gauge; Measurement mechanism also includes first place kick, locating sleeve, stage clip, cover plate, measuring staff, balancing stand, second place kick, stop collar and moves radially place kick; Wherein the symcenter of balancing stand is provided with through hole; The said through hole of the two end distances center of balancing stand has the internal thread hole of equidistance C/2; Distance is C between two said internal thread holes at balancing stand two ends; Said internal thread hole overlaps through stepped bolt and adjustment or connects first place kick or connect second place kick; The diameter of first place kick equals the diameter of second place kick, and when first place kick and second place kick were fixed on the said internal thread hole at balancing stand two ends through said stepped bolt with the adjustment cover, line between two lowermost end points of first place kick and second place kick and balancing stand maintenance were parallel to each other; Cross-under has measuring staff in the said through hole of balancing stand; The lower end of measuring staff is connected with and can moves radially place kick with what measuring staff moved up and down through stop collar; The upper end of measuring staff is fixed on the balancing stand through locating sleeve and cover plate behind the configuration stage clip; Measurement instrument is screwed in the center pit of cover plate, end in contact on the gauge head of measurement instrument and the measuring staff; The diameter that moves radially place kick equals the diameter of first place kick or the diameter of second place kick, and the line that moves radially between two lowermost end points of horizontal line and first place kick and second place kick of place kick lowermost end point forms difference in height h.
Owing to adopt technical scheme as stated, the utlity model has following good effect:
1, the measurement mechanism of the utility model has simple in structurely, light, and operating personnel can measure easily and efficiently.
2, measuring staff reduces the measuring error of measurement mechanism because the position-limiting action of stage clip can keep excellent contact with the gauge head of measurement instrument.
3, first place kick and second place kick and move radially place kick steel part is can also to adopt silicon nitride material to process except that adopting are with the overall weight of reduction measurement mechanism, the serviceable life that the superior anti-wear performance of silicon nitride can improve measurement mechanism greatly.
4, the locating sleeve in the measurement mechanism, cover plate, measuring staff, balancing stand and stop collar can adopt aluminum alloy materials to process; Aluminium alloy is not only in light weight, good toughness; And rigidity and mechanical property all can satisfy the request for utilization of measurement mechanism, can further reduce the overall weight of measurement mechanism.
5, balancing stand can arbitrarily extend to regulate distance between first place kick and second place kick, can measure larger sized torus internal diameter nominal size tolerance.
6, if the dial gauge that measurement mechanism is used changes clock gauge into, can make the measuring accuracy of measurement mechanism bring up to 0.001mm from 0.01mm.
Description of drawings
Fig. 1 is the structural representation of the utility model measurement mechanism;
Among Fig. 1: 1-first place kick; The 2-locating sleeve; The 3-stage clip; The 4-cover plate; The 5-measurement instrument; The 6-measuring staff; The 7-balancing stand; 8-the second place kick; 9-stop collar; 10-move radially place kick.
Embodiment
In conjunction with Fig. 1, the utility model is a kind of measurement mechanism of measuring the torus id tolerance, torus or circle type part, or cover type part, or bearing class.Toric internal diameter is set at 2r; R is toric radius; This measurement mechanism includes measurement instrument 5, said measurement instrument 5 or dial gauge, or clock gauge; The measuring accuracy of its measurement mechanism is 0.01mm when said measurement instrument is dial gauge, and the measuring accuracy of its measurement mechanism is 0.001mm when said measurement instrument is clock gauge.
Measurement mechanism except that measurement instrument 5, also include first place kick 1, locating sleeve 2, stage clip 3, cover plate 4,, measuring staff 6, balancing stand 7, second place kick 8, stop collar 9 and move radially place kick 10.Measurement mechanism forms according to " confirming one section circular arc at 3 " principle design, has deferred to formula h=r-1/2 (4r
2-C
2)
1/2
The symcenter of balancing stand 7 is provided with through hole; The said through hole of the two end distances center of balancing stand 7 has the internal thread hole of equidistance C/2; Distance is C between two said internal thread holes at balancing stand 7 two ends; Said internal thread hole is through stepped bolt or connect first place kick 1 or connect second place kick 8; The diameter of first place kick 1 equals the diameter of second place kick 8; When first place kick 1 and second place kick 8 were fixed on the said internal thread hole at balancing stand 7 two ends through said stepped bolt, line between two lowermost end points of first place kick 1 and second place kick 8 and balancing stand 7 kept being parallel to each other, thereby and the adjustment nested structure size that is enclosed within the middle of each said stepped bolt equates to guarantee said being parallel to each other.
Above-mentioned first place kick 1 and second place kick 8 and move radially place kick 10 and except that adopting steel part, can also adopt silicon nitride material to process; To reduce the overall weight of measurement mechanism, the serviceable life that the superior anti-wear performance of silicon nitride can improve measurement mechanism greatly.
Above-mentioned balancing stand 7 can arbitrarily extend; Distance can be adjusted with torus internal diameter size between two said internal thread holes at balancing stand 7 two ends; Adjusted spacing should guarantee that be C/2 for C also will guarantee each said internal thread hole apart from the centre distance of said through hole; Apart from also obtaining corresponding adjustment, can measure larger sized torus id tolerance between first place kick that is fixed like this and second place kick.
Cross-under has measuring staff 6 in balancing stand 7 said through holes; The lower end of measuring staff 6 is connected with and can moves radially place kick 10 with what measuring staff 6 moved up and down through stop collar 9; The upper end of measuring staff 6 is fixed on the balancing stand 7 through locating sleeve 2 and cover plate 4 in configuration stage clip 3 backs; Measurement instrument 5 is screwed in the center pit of cover plate 4, end in contact on the gauge head of measurement instrument 5 and the measuring staff 6.
Above-mentioned measuring staff 6 can be delivered to tested numerical value on the measurement instrument 5, and the length of measuring staff 6 can be adjusted equally, to guarantee that stage clip 3 is in compacted all the time in the measuring process.Measuring staff 6 reduces the measuring error of measurement mechanism because the position-limiting action of stage clip 3 can keep excellent contact with the gauge head of measurement instrument 5.
Above-mentioned locating sleeve 2 is fixed on the balancing stand 7, and the internal diameter of locating sleeve 2 and measuring staff 2 diameters are complementary, and make moving up and down of measuring staff 2 more accurate.
Above-mentioned stage clip 3 is in impaction state all the time in measuring process, to guarantee that moving radially place kick 10 is close to toric internal diameter end face.
Above-mentioned cover plate 4 is used for measurement instrument 5 is connected in the locating sleeve 2, and makes stage clip 3 be in impaction state.
The structure of above-mentioned said adjustment cover and the structural similarity of stop collar 9.
Locating sleeve 2 in the above-mentioned measurement mechanism, cover plate 4, measuring staff 6, balancing stand 7 and stop collar 9 can adopt aluminum alloy materials to process; Aluminium alloy is not only in light weight, good toughness; And rigidity and mechanical property all can satisfy the request for utilization of measurement mechanism, can further reduce the overall weight of measurement mechanism.
Can find out through above-mentioned analysis: measurement mechanism has simple in structure, light, and operating personnel can measure easily and efficiently.
The diameter that moves radially place kick 10 equals the diameter of first place kick 1 or the diameter of second place kick 8; Two lowermost end points that move radially place kick 10 lowermost end points and first place kick 1 and second place kick 8 have formed 3 points of the one section circular arc that coexists, and move radially the line formation difference in height h between two lowermost end points of place kick 10 lowermost end points and first place kick 1 and second place kick 8.
Before using measurement mechanism; On workbench, put earlier the locating piece that two absolute altitude are all h; First place kick 1 and second place kick 8 are placed on the locating piece separately; Move radially that place kick 10 is free saggingly to be contacted with workbench, fully contact the benchmark readout of recording measuring instrument 5 afterwards in the gauge head and measuring staff 6 upper ends of measurement instrument 5, this benchmark readout is labeled as original value.
During use; Be the toric chord length of 2r apart from equaling internal diameter between two relatively-stationary first place kick 1 and second place kick 8 contact with the torus internal diameter 2; The formed difference in height h of line that moves radially distance between horizontal line and of place kick 10 and torus internal diameter contact point at said 2 equals the toric action that internal diameter is 2r; This moment recording measuring instrument 5 the measurement readout; This measurement readout is labeled as measured value, and the difference of the absolute value of measured value and original value is the tolerance of torus internal diameter 2r, so far accomplishes measuring process.
From moving radially the minimum diameter size of the height decision torus institute energy measurement that place kick 10 lowermost ends point produced to measurement instrument 5 upper ends; That is to say move radially place kick 10 lowermost ends put the height that measurement instrument 5 upper ends are produced can not be greater than toric internal diameter; Otherwise can interfere phenomenon; Cause measuring inaccurate, this has also determined the minimum value of the torus internal diameter of the utility model measurement mechanism institute energy measurement.It is exquisiter or say and move radially place kick 10 lowermost ends to put the height h that measurement instrument 5 upper ends are produced more little that then the usable range of measurement mechanism is just big more that measurement mechanism is done.
Claims (1)
1. measurement mechanism of measuring the torus id tolerance; Toric internal diameter is set at 2r, and r is toric radius, and this measurement mechanism includes measurement instrument (5); Said measurement instrument or dial gauge; Or clock gauge, when said measurement instrument (5) when being dial gauge the measuring accuracy of its measurement mechanism be 0.01mm, when said measurement instrument (5) when being clock gauge the measuring accuracy of its measurement mechanism be 0.001mm; It is characterized in that: measurement mechanism also includes first place kick (1), locating sleeve (2), stage clip (3), cover plate (4), measuring staff (6), balancing stand (7), second place kick (8), stop collar (9) and moves radially place kick (10); Wherein the symcenter of balancing stand (7) is provided with through hole; The said through hole of the two end distances center of balancing stand (7) has the internal thread hole of equidistance C/2; Distance is C between two said internal thread holes at balancing stand (7) two ends; Said internal thread hole overlaps through stepped bolt and adjustment or connects first place kick (1) or connect second place kick (8); The diameter of first place kick (1) equals the diameter of second place kick (8); When first place kick (1) and second place kick (8) were fixed on the said internal thread hole at balancing stand (7) two ends through said stepped bolt with the adjustment cover, line between two lowermost end points of first place kick (1) and second place kick (8) and balancing stand (7) maintenance were parallel to each other; Cross-under has measuring staff (6) in the said through hole of balancing stand (7); The lower end of measuring staff (6) is connected with and can moves radially place kick (10) with what measuring staff moved up and down through stop collar (9); The upper end of measuring staff (6) is fixed on the balancing stand (7) through locating sleeve (2) and cover plate (4) in configuration stage clip (3) back; Measurement instrument (5) is spun (4) in the center pit of cover plate, and the gauge head of measurement instrument (5) and measuring staff (6) are gone up end in contact; The diameter that moves radially place kick (10) equals the diameter of first place kick (1) or the diameter of second place kick (8), and the line that moves radially between two lowermost end points of horizontal line and first place kick (1) and second place kick (8) of place kick (10) lowermost end point forms difference in height h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202213199U CN202158826U (en) | 2011-06-28 | 2011-06-28 | Measuring device for measuring inner diameter tolerance of circular ring body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202213199U CN202158826U (en) | 2011-06-28 | 2011-06-28 | Measuring device for measuring inner diameter tolerance of circular ring body |
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| Publication Number | Publication Date |
|---|---|
| CN202158826U true CN202158826U (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202213199U Expired - Fee Related CN202158826U (en) | 2011-06-28 | 2011-06-28 | Measuring device for measuring inner diameter tolerance of circular ring body |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645145A (en) * | 2012-05-21 | 2012-08-22 | 苏州市东吴滚针轴承有限公司 | Drawn cup wall thickness detection device |
| CN102840811A (en) * | 2012-08-31 | 2012-12-26 | 成都天马铁路轴承有限公司 | Measuring device for measuring outer ring channel of large-sized bearing |
| CN102853740A (en) * | 2012-08-31 | 2013-01-02 | 成都天马铁路轴承有限公司 | Measuring device for measuring large bearing sealing groove |
| CN104764431A (en) * | 2015-04-24 | 2015-07-08 | 江苏理工学院 | Online intelligent measuring device for inner and outer curvature radii of plate rolled by plate rolling machine |
| CN108387162A (en) * | 2018-02-13 | 2018-08-10 | 东北大学 | A kind of method of off-line measurement large-scale workpiece radius of curvature |
-
2011
- 2011-06-28 CN CN2011202213199U patent/CN202158826U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645145A (en) * | 2012-05-21 | 2012-08-22 | 苏州市东吴滚针轴承有限公司 | Drawn cup wall thickness detection device |
| CN102840811A (en) * | 2012-08-31 | 2012-12-26 | 成都天马铁路轴承有限公司 | Measuring device for measuring outer ring channel of large-sized bearing |
| CN102853740A (en) * | 2012-08-31 | 2013-01-02 | 成都天马铁路轴承有限公司 | Measuring device for measuring large bearing sealing groove |
| CN102853740B (en) * | 2012-08-31 | 2014-12-03 | 成都天马铁路轴承有限公司 | Measuring device for measuring large bearing sealing groove |
| CN102840811B (en) * | 2012-08-31 | 2015-04-22 | 成都天马铁路轴承有限公司 | Measuring device for measuring outer ring channel of large-sized bearing |
| CN104764431A (en) * | 2015-04-24 | 2015-07-08 | 江苏理工学院 | Online intelligent measuring device for inner and outer curvature radii of plate rolled by plate rolling machine |
| CN104764431B (en) * | 2015-04-24 | 2017-09-29 | 江苏理工学院 | Online intelligent measuring device for inner and outer curvature radii of plate rolled by plate rolling machine |
| CN108387162A (en) * | 2018-02-13 | 2018-08-10 | 东北大学 | A kind of method of off-line measurement large-scale workpiece radius of curvature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20170628 |