CN204007473U - A kind of curvature of curved surface radius measurement instrument - Google Patents
A kind of curvature of curved surface radius measurement instrument Download PDFInfo
- Publication number
- CN204007473U CN204007473U CN201420436643.6U CN201420436643U CN204007473U CN 204007473 U CN204007473 U CN 204007473U CN 201420436643 U CN201420436643 U CN 201420436643U CN 204007473 U CN204007473 U CN 204007473U
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- measurement
- cross beam
- fixed cross
- curved surface
- chi
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Abstract
The utility model discloses a kind of curvature of curved surface radius measurement instrument, comprise a fixed cross beam; Two perpendicular to described fixed cross beam and be fixedly installed on respectively the measurement leg at described fixed cross beam two ends, and two described measurement leg free ends equate to the distance of described fixed cross beam; One perpendicular to described fixed cross beam and be movably set in the outstanding chi of measurement at described fixed cross beam middle part, described measurement is hanged chi and is equated with the distance between two described measurement legs, and the outstanding chi of described measurement can move in the direction perpendicular to described fixed cross beam with respect to described fixed cross beam.A kind of curvature of curved surface radius measurement instrument described in the utility model, can break prior art can only be applied to the restriction that one-piece construction is symmetrical in the workpiece of curved surface on the one hand, and without finding the parameters such as the symmetric position of curved surface and angle, can break on the other hand the restriction that prior art can only be measured curvature of curved surface radius in the horizontal direction.
Description
Technical field
The utility model relates to a kind of curvature of curved surface radius measurement instrument, belongs to physical form parameter measurement technical field of tools.
Background technology
The main method of measuring curvature of curved surface radius in prior art is equal thickness interference method, and the method measurement efficiency is lower and use occasion is limited.For this reason, Chinese patent literature CN 102393176 discloses a kind of tool for detecting mould outline curvature radius, this technical scheme comprises left support abutment and the vertical vertical chi in a left side that is fixed wtih on left support abutment, right support abutment and the vertical vertical chi in the right side that is fixed wtih on right support abutment, between two vertical chis, with crossfoot, take connection, on crossfoot, by outstanding chi vernier, hanging outstanding chi, outstanding chi lower end is semicircle cone contact point.Technique scheme can only be applied to the workpiece that one-piece construction is symmetrical in curved surface on the one hand, or symmetric position and the isoparametric workpiece of angle of curved surface have been found, otherwise the inaccurate contact surface peak of the semicircle cone contact point that easily has outstanding chi lower end, hang the not situation of conllinear of chi and subsequent corrosion, thereby had a strong impact on the measurement accuracy of radius-of-curvature, obviously the scope of application restric-tion is narrower or to find the parameters such as the symmetric position of curved surface and angle comparatively time-consuming; Technique scheme can only be applied to measure in the horizontal direction curvature of curved surface radius on the other hand, is not therefore suitable for large-scale workpiece or erose workpiece.
Utility model content
The deficiency that the utility model exists for prior art just, a kind of curvature of curved surface radius measurement instrument is provided, can break prior art can only be applied to the restriction that one-piece construction is symmetrical in the workpiece of curved surface on the one hand, and without finding the parameters such as the symmetric position of curved surface and angle, can break on the other hand the restriction that prior art can only be measured curvature of curved surface radius in the horizontal direction.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A curvature of curved surface radius measurement instrument, comprising:
A fixed cross beam;
Two perpendicular to described fixed cross beam and be fixedly installed on respectively the measurement leg at described fixed cross beam two ends, and two described measurement leg free ends equate to the distance of described fixed cross beam;
One perpendicular to described fixed cross beam and be movably set in the outstanding chi of measurement at described fixed cross beam middle part, described measurement is hanged chi and is equated with the distance between two described measurement legs, and the outstanding chi of described measurement can move in the direction perpendicular to described fixed cross beam with respect to described fixed cross beam.
As the improvement of technique scheme, the junction of the outstanding chi of described measurement and described fixed cross beam is provided with scale window, on the outstanding chi of described measurement, is provided with radius-of-curvature scale.
Improvement as technique scheme, described fixed cross beam is provided with leg guide pin bushing and outstanding chi guide pin bushing, described leg guide pin bushing and described outstanding chi guide pin bushing be all perpendicular to described fixed cross beam, and described measurement leg is arranged in described leg guide pin bushing, and the outstanding chi of described measurement is arranged in described outstanding chi guide pin bushing.Described structure is conducive to improve the verticality of described measurement leg and the outstanding chi of described measurement and described fixed cross beam.
As the improvement of technique scheme, the free end of the outstanding chi of described measurement leg and described measurement is sharp cone distal.Described structure is conducive to improve the accuracy of measuring.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
A kind of curvature of curved surface radius measurement instrument described in the utility model, owing to measuring outstanding chi, equate with two distances of measuring between leg, and measure leg and when measuring, be used for direct contact surface, therefore first can guarantee to measure outstanding chi and subsequent corrosion coplanar, then by fine waving survey instrument, make to measure while demonstrating minimum radius-of-curvature value on outstanding chi, conllinear of the outstanding chi of measurement and subsequent corrosion is described, therefore can break prior art can only be applied to the restriction that one-piece construction is symmetrical in the workpiece of curved surface, and without finding the parameters such as the symmetric position of curved surface and angle, prior art can be broken on the other hand and the restriction of curvature of curved surface radius can only be measured in the horizontal direction, from embodiment below, a kind of curvature of curved surface radius measurement instrument described in the utility model obviously goes for measuring in any direction the radius-of-curvature of curved surface.
Accompanying drawing explanation
Fig. 1 is a kind of curvature of curved surface radius measurement instrument surface structure schematic diagram described in the utility model;
Fig. 2 is a kind of curvature of curved surface radius measurement instrument part section structural representation described in the utility model.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
As depicted in figs. 1 and 2, be a kind of curvature of curved surface radius measurement tool construction schematic diagram described in the utility model.A kind of curvature of curved surface radius measurement instrument described in the utility model, comprising: a fixed cross beam 1; Two perpendicular to described fixed cross beam 1 and 3, two described measurement leg 3 free ends of measurement leg of being fixedly installed on respectively described fixed cross beam 1 two ends, the distance to described fixed cross beam 1 equates; One perpendicular to described fixed cross beam 1 and be movably set in the outstanding chi 2 of measurement at described fixed cross beam 1 middle part, described measurement is hanged chi 2 and is equated with the distance between two described measurement legs 3, and the outstanding chi 2 of described measurement can move in the direction perpendicular to described fixed cross beam 1 with respect to described fixed cross beam 1.Further optimally, the outstanding chi 2 of described measurement is provided with scale window 6 with the junction of described fixed cross beam 1, on the outstanding chi 2 of described measurement, is provided with radius-of-curvature scale.Further, described fixed cross beam 1 is provided with leg guide pin bushing 5 and outstanding chi guide pin bushing 4, described leg guide pin bushing 5 and described outstanding chi guide pin bushing 4 be all perpendicular to described fixed cross beam 1, and described measurement leg 3 is arranged in described leg guide pin bushing 5, and the outstanding chi 2 of described measurement is arranged in described outstanding chi guide pin bushing 4.Preferably, the free end of the outstanding chi of described measurement leg and described measurement is sharp cone distal.
During measurement, two radians of measuring between leg 3 and the contact point of curved surface are 2a, and two distances of measuring between leg 3 are definite value, be assumed to be x, x is two profound length of measuring the arc between leg 3, and 1 to two distance of measuring between leg 3 and the contact point of curved surface of fixed cross beam is also definite value, be assumed to be y, y is the b shown in figure and c sum, and fixed cross beam 1 is the b shown in figure to the distance of measuring between outstanding chi 2 and the contact point of curved surface, suppose that the curvature of curved surface radius of need measuring is r, the d=r-c shown in figure, and have:
sin a=x/2r
cos a=d/r=(r-y+b)/r
Can draw:
In aforesaid equation, x and y are known definite value, can set up the conversion relation of r and b thus, therefore measured survey curvature of curved surface radius can directly reflect in the length of measuring outstanding chi 2, can directly measured survey curvature of curved surface radius result be shown in to the different length position of the outstanding chi 2 of measurement with the form of scale.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (5)
1. a curvature of curved surface radius measurement instrument, is characterized in that, comprising:
A fixed cross beam (1);
Two perpendicular to described fixed cross beam (1) and be fixedly installed on respectively the measurement leg (3) at described fixed cross beam (1) two ends, and two described measurement legs (3) free end equates to the distance of described fixed cross beam (1);
One perpendicular to described fixed cross beam (1) and be movably set in the outstanding chi (2) of measurement at described fixed cross beam (1) middle part, described measurement is hanged chi (2) and is equated with the distance between two described measurement legs (3), and described measurement is hanged chi (2) and can be moved in the direction perpendicular to described fixed cross beam (1) with respect to described fixed cross beam (1).
2. a kind of curvature of curved surface radius measurement instrument as claimed in claim 1, is characterized in that, described measurement is hanged chi (2) and is provided with scale window (6) with the junction of described fixed cross beam (1), and described measurement is hanged on chi (2) and is provided with radius-of-curvature scale.
3. a kind of curvature of curved surface radius measurement instrument as claimed in claim 1 or 2, it is characterized in that, described fixed cross beam (1) is provided with leg guide pin bushing (5) and outstanding chi guide pin bushing (4), described leg guide pin bushing (5) and described outstanding chi guide pin bushing (4) are all perpendicular to described fixed cross beam (1), and described measurement leg (3) is arranged in described leg guide pin bushing (5), described measurement is hanged chi (2) and is arranged in described outstanding chi guide pin bushing (4).
4. a kind of curvature of curved surface radius measurement instrument as claimed in claim 1 or 2, is characterized in that, the free end of the outstanding chi of described measurement leg and described measurement is sharp cone distal.
5. a kind of curvature of curved surface radius measurement instrument as claimed in claim 3, is characterized in that, the free end of the outstanding chi of described measurement leg and described measurement is sharp cone distal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436643.6U CN204007473U (en) | 2014-08-05 | 2014-08-05 | A kind of curvature of curved surface radius measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436643.6U CN204007473U (en) | 2014-08-05 | 2014-08-05 | A kind of curvature of curved surface radius measurement instrument |
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| Publication Number | Publication Date |
|---|---|
| CN204007473U true CN204007473U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420436643.6U Expired - Fee Related CN204007473U (en) | 2014-08-05 | 2014-08-05 | A kind of curvature of curved surface radius measurement instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621247A (en) * | 2015-04-24 | 2018-01-23 | 江苏理工学院 | Outer curvature radius on-line intelligence measurement apparatus in a kind of veneer reeling machine roll bending |
| CN107747896A (en) * | 2017-11-03 | 2018-03-02 | 武汉理工大学 | A kind of accurate bended pipe curvature measurement device |
| 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 |
| CN113310448A (en) * | 2021-05-27 | 2021-08-27 | 鹰领航空高端装备技术秦皇岛有限公司 | Roll bending forming structural part curvature radius online detection device and detection method thereof |
-
2014
- 2014-08-05 CN CN201420436643.6U patent/CN204007473U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621247A (en) * | 2015-04-24 | 2018-01-23 | 江苏理工学院 | Outer curvature radius on-line intelligence measurement apparatus in a kind of veneer reeling machine roll bending |
| CN107621247B (en) * | 2015-04-24 | 2019-08-27 | 江苏理工学院 | Outer curvature radius on-line intelligence measuring device in a kind of veneer reeling machine roll bending |
| CN107747896A (en) * | 2017-11-03 | 2018-03-02 | 武汉理工大学 | A kind of accurate bended pipe curvature measurement device |
| CN107747896B (en) * | 2017-11-03 | 2020-11-06 | 武汉理工大学 | Accurate measurement method for curvature of bent steel pipe |
| 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 |
| CN113310448A (en) * | 2021-05-27 | 2021-08-27 | 鹰领航空高端装备技术秦皇岛有限公司 | Roll bending forming structural part curvature radius online detection device and detection method thereof |
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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 |
Granted publication date: 20141210 Termination date: 20190805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |