CN213455278U - Roundness measuring instrument for roundness detection of outer circular edge of universal bearing - Google Patents
Roundness measuring instrument for roundness detection of outer circular edge of universal bearing Download PDFInfo
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- CN213455278U CN213455278U CN202022111084.XU CN202022111084U CN213455278U CN 213455278 U CN213455278 U CN 213455278U CN 202022111084 U CN202022111084 U CN 202022111084U CN 213455278 U CN213455278 U CN 213455278U
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Abstract
The utility model discloses a roundness measuring instrument for roundness detection of excircle edge of general bearing, comprising a main body, be provided with load-bearing platform in the main part, load-bearing platform sets up location portion, be provided with the standard component that is used for making things convenient for the real-time excircle edge roundness detection of different excircle size work pieces to use in the main part, this roundness measuring instrument for roundness detection of excircle edge of general bearing to be different from prior art, and then in real-time use, only need make the standard component according to the actual excircle size of bearing work piece, can unify the V type piece of above three kinds of angles, directly adopt the slider to adjust, need not repeatedly change different angle V type pieces and measure, effectively make things convenient for the excircle edge roundness measurement use of different excircle size bearing work pieces, in addition, will originally top screw hole cancel, can satisfy the excircle three of all miniature, small-size, medium-sized bearing product, Five, seven, nine arris circle detection requirements guarantee the convenience that real-time detection used.
Description
Technical Field
The utility model relates to a roundness measuring equipment technical field specifically is a roundness measuring equipment is used in detection of general type bearing excircle arris circularity.
Background
The roundness of the outer circle of the bearing has certain difference according to different detection modes and the geometric significance given by the value of the roundness is different.
If a special Y9025 roundness measuring instrument is adopted, the measured value is called roundness (namely comprehensive roundness), the measurement calculation mode is generally carried out by adopting a least square circle method, and the geometric meaning represented by the method is as follows: the circle center of the circle with the smallest square sum of the distances from each corresponding point on the measured circular contour to the circumference is used as the circle center, and the radius difference of two concentric circles containing the measured circular contour is used as the circle center.
However, the development of the industry to date does not provide a roundness measuring device which is comprehensive in detection and suitable for field high-frequency inspection, only a few specific field roundness detection devices are available in the market for industrial detection, such as a meter prototype shown in fig. 1 and a V-shaped block modified model shown in fig. 2, but due to the detection limitation in design, the roundness measuring device must be standardized and improved, and therefore, a universal roundness meter for detecting the outer circular edge of the bearing is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a roundness measuring equipment is used in detection of general type bearing excircle arris circularity to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a roundness measuring instrument for roundness detection of excircle arris of general type bearing, includes the main part, be provided with load-bearing platform in the main part, load-bearing platform is last to be provided with location portion, be provided with in the main part and be used for making things convenient for the real-time excircle arris roundness detection of different excircle size work pieces to use standard component, and be provided with in the main part and be used for cooperating location portion to guarantee that the real-time convenient and stable mounting that uses of standard component, be different from prior art, and then in real-time use, only need make standard component according to the actual excircle size of bearing work piece, can unify the V type piece of above three kinds of angles, directly adopt the slider to adjust, need not repeatedly change different angle V type pieces and measure, effectively make things convenient for the excircle arris of different excircle size bearing work pieces to measure and use, in addition, the three, five, seven and nine-edge circle detection requirements of the outer circle of the medium-sized bearing product guarantee the convenience of real-time detection and use.
Preferably, the standard component comprises a standard seat movably arranged on the bearing platform, and a deflection positioning middle shaft is rotatably arranged at the center of the standard seat so as to facilitate real-time outer circular edge roundness detection of the bearing workpiece with the corresponding outer circular dimension.
Preferably, the fixing part comprises positioning sliding blocks which are respectively arranged in the through grooves on the two sides of the bearing platform in a sliding manner and have real-time positioning capability, and positioning columns which are used for matching with the deflection positioning middle shaft to position and fix the bearing workpiece are fixed on the positioning sliding blocks, so that the bearing workpiece with the corresponding excircle size can be conveniently and stably fixed, and the requirement that the included angle between two contact points and the circle center meets the measurement requirement of the V-shaped block with the corresponding angle during product measurement can be ensured forever.
Preferably, the deflection positioning middle shaft and the positioning column are both of cylindrical structures, so that real-time angle deflection is effectively facilitated, and continuous contrast detection of the deflection positioning middle shaft and the positioning column is effectively facilitated.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses be different from prior art, and then in real-time use, only need be according to bearing workpiece's actual excircle size preparation standard component, can be unified with the V type piece of three kinds of angles above, directly adopt the slider to adjust, need not relapse the different angle V type pieces of reloading and measure, effectively make things convenient for the excircle arris roundness measurement of different excircle size bearing workpiece to use, in addition, will originally top screw hole cancel, can satisfy all miniature, small-size, the excircle three of medium-sized bearing product, five, seven, nine arris circle detection requirements, guarantee the convenience that real-time detection used.
Drawings
FIG. 1 is a schematic diagram of a prototype structure of a roundness measuring instrument in the prior art;
FIG. 2 is a schematic structural view of a V-shaped modified model of a conventional roundness measuring instrument;
FIG. 3 is a schematic view of the overall structure of the present invention;
fig. 4 is a schematic diagram of a triangular prism geometry analysis.
In the figure: 1-a body; 2-a load-bearing platform; 3-a positioning part; 4-standard parts; 5-a fixing piece; 6-standard seat; 7-deflection positioning middle shaft; 8-positioning the slide block; 9-positioning column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a roundness measuring instrument for roundness detection of outer circular edges of universal bearings comprises a main body 1, wherein a bearing platform 2 is arranged on the main body 1, a positioning part 3 is arranged on the bearing platform 2, and the main body 1, the bearing platform 2 and the positioning part 3 are structurally designed by the main body 1 for roundness detection of outer circular edges of bearings in the prior art, which is not repeated herein;
be provided with the standard component 4 that is used for making things convenient for the real-time excircle arris circularity detection of different excircle size work pieces to use in main part 1, and be provided with the mounting 5 that is used for cooperating location portion 3 to guarantee that standard component 4 makes things convenient for and stably installs the use in real time in main part 1, in order to be different from prior art, and then in real-time use, only need make standard component 4 according to the actual excircle size of bearing work piece, can unify the V type piece of three kinds of angles above, directly adopt the slider to adjust, need not repeatedly change the dress different angle V type pieces and measure, effectively make things convenient for the excircle arris circularity measurement of different excircle size bearing work pieces to use, in addition, with top screw hole cancellation originally, can satisfy all miniaturely, small-size, the excircle three of medium-sized bearing product, five, seven, nine arri.
The standard part 4 comprises a standard seat 6 movably arranged on the bearing platform 2, the standard seat 6 is of a circular seat structure, and a deflection positioning middle shaft 7 is rotatably arranged at the center of the standard seat 6 so as to facilitate real-time outer circular edge roundness detection of a bearing workpiece with a corresponding outer circular size.
The fixing part 5 comprises positioning sliding blocks 8 which are respectively arranged in through grooves in two sides of the bearing platform 2 in a sliding mode and have real-time positioning capacity, positioning columns 9 which are used for being matched with the deflection positioning middle shafts 7 to position and fix the bearing workpiece are fixed on the positioning sliding blocks 8, and further, in the real-time use process, the positioning columns 9 and the deflection positioning middle shafts 7 are used for co-positioning, so that the bearing workpiece with the corresponding excircle size can be conveniently and stably fixed, and the requirement that the included angle between two contact points and the circle center meets the measurement requirement of a V-shaped block with the corresponding angle when the bearing workpiece is measured can be guaranteed forever.
Correspondingly, the deflection positioning middle shaft 7 and the positioning column 9 are both of cylindrical structures, so that the real-time angular deflection of the bearing workpiece is effectively facilitated in the real-time continuous outer circular edge roundness detection process of the bearing workpiece, and the continuous contrast detection of the bearing workpiece is effectively facilitated.
Further, the scheme of the application is further explained, namely the design concept and the technical effect of the scheme are further stated, as the manufacturing and processing in the bearing industry are carried out, the roundness control mainly takes 12-time resonance as the main part (vibration lines are not in a row), aiming at a V-shaped modified model mainly used for detecting odd-numbered edge circles and a D051 prototype roundness meter used for detecting oval and even-numbered edge circles, the two types of meters are the most common meters for field detection of the outer diameter roundness in the bearing industry at present and have limitations respectively, so the two types of meters are mostly used in combination on the field at most, the two meters are divided according to the detection principle of the two types of meters, and the roundness is classified according to the fact that the number of resonance times (namely the number of wave crests) generated in each rotation circle belongs to odd numbers or even numbers so as to explain how to select the two meters and standardize the.
For the convenience of intuitive understanding, the following explanations, drawings and calculations are made, taking ellipses, triangular prisms and quadrangular prisms as examples for explanation:
ellipse: the circular body generates two times of resonance when rotating for one circle, and the circular body is regarded as an ellipse;
edge rounding: the circular body has more than two resonances after rotating for one circle, and is identified as edge circle (i.e. multi-edge), which can be divided into odd edge circle and even edge circle due to its parity.
The requirement of using the V-shaped block for auxiliary detection is that the extension line of the V-shaped block must be tangent to the excircle, so that the V-shaped block is only suitable for measuring microminiature products; the length design of the V-shaped block is limited due to the limitation of instrument space of medium and large products, so that the V-shaped block is not suitable for being additionally installed and used.
However, as the relevant literature description of the use cautions of the V-shaped blocks is not found, many enterprises with unknown principles only know to select the 60 ° and 120 ° V-shaped supports, but do not make requirements on tangent necessary conditions, resulting in failure of management and control.
As can be seen from the D051 prototype roundness measuring instrument, for the number of even number of wave crests, the maximum value can be measured by the D051, the magnification is the maximum, and the roundness abnormality in the production process is fed back most easily.
For odd numbers, different V-shaped blocks are needed for measurement so as to obtain the maximum magnification.
By drawing the inscribed circle and the circumscribed circle of the triangle with equal sides, the locus of the ideal circle is on the average radius of the two circles, geometric derivation is carried out by taking the locus as a reference, and the maximum fluctuation range is 3 times of the actual range after the excircle is rotated by 180 degrees, which is consistent with the assignment in the table.
From the above, according to the invariance principle that the included angle of the V-shaped frame occupies a circumferential angle when being tangent, the standard conversion of the V-shaped block can be carried out, and the standard conversion is converted into the included angle between two tangent points of the product and the center of the product.
According to the measurement of the 60-degree V-shaped block, the included angle of the circle center of the converted product is 120 degrees, so that the sliding block can be made into standard parts according to different excircle sizes on site, the standard parts can be aligned by sliding according to different excircle sizes, the requirement that the included angle between two contact points and the circle center meets the measurement requirement of the 60-degree V-shaped block when the product is measured is ensured forever, the effect of accurate measurement is achieved, and the roundness is controlled in an auxiliary site.
The scheme is different from the scheme, only the standard part needs to be manufactured during detection (the standard part is manufactured and is simple and easy to manufacture), the V-shaped blocks at the three angles can be unified, the sliding block is directly adopted for adjustment, the V-shaped blocks at different angles do not need to be repeatedly reloaded for measurement, the top screw hole is cancelled, the three-edge, five-edge, seven-edge and nine-edge circle detection requirements of all micro, small and medium-sized bearing products can be met, and the requirement for real-time high-efficiency bearing workpiece excircle edge roundness detection is met.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a roundness measuring instrument for roundness detection of outer circular edge of general type bearing, includes main part (1), be provided with load-bearing platform (2) on main part (1), be provided with location portion (3) on load-bearing platform (2), its characterized in that: be provided with on main part (1) and be used for making things convenient for real-time excircle arris circularity detection of different excircle sizes work piece to use standard component (4), and be provided with on main part (1) and be used for cooperation location portion (3) to guarantee that standard component (4) are convenient in real time and stable mounting (5) that use.
2. The roundness measuring instrument for roundness of an outer circular edge of a universal bearing according to claim 1, wherein: the standard component (4) comprises a standard seat (6) movably arranged on the bearing platform (2), and a deflection positioning middle shaft (7) is rotatably arranged at the center position of the standard seat (6).
3. The roundness measuring instrument for roundness of an outer circular edge of a universal bearing according to claim 2, wherein: the fixing part (5) comprises positioning sliding blocks (8) which are respectively arranged in the through grooves on the two sides of the bearing platform (2) in a sliding mode and have real-time positioning capacity, and positioning columns (9) which are used for being matched with the deflection positioning middle shafts (7) to position and fix the bearing workpiece are fixed on the positioning sliding blocks (8).
4. The roundness measuring instrument for roundness of an outer circular edge of a universal bearing according to claim 3, wherein: the deflection positioning center shaft (7) and the positioning column (9) are both of cylindrical structures.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022111084.XU CN213455278U (en) | 2020-09-23 | 2020-09-23 | Roundness measuring instrument for roundness detection of outer circular edge of universal bearing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022111084.XU CN213455278U (en) | 2020-09-23 | 2020-09-23 | Roundness measuring instrument for roundness detection of outer circular edge of universal bearing |
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| CN213455278U true CN213455278U (en) | 2021-06-15 |
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| CN202022111084.XU Active CN213455278U (en) | 2020-09-23 | 2020-09-23 | Roundness measuring instrument for roundness detection of outer circular edge of universal bearing |
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Address after: 315400 No. 207, Xinlang Road, Langxia street, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Cixi Ningbo Donghuang Automatization Equipment Co.,Ltd. Country or region after: China Address before: 315480 No.207, Xinlang Road, Langxia street, Yuyao City, Ningbo City, Zhejiang Province Patentee before: NINGBO DONGHUANG AUTOMATION EQUIPMENT Co.,Ltd. Country or region before: China |