CN110953972B - Inner hole coaxiality measuring device - Google Patents
Inner hole coaxiality measuring device Download PDFInfo
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- CN110953972B CN110953972B CN201911073915.4A CN201911073915A CN110953972B CN 110953972 B CN110953972 B CN 110953972B CN 201911073915 A CN201911073915 A CN 201911073915A CN 110953972 B CN110953972 B CN 110953972B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the field of mechanical structure design. Relates to a coaxiality measuring device, which is characterized in that the device is screwed on a support (16) with a hole; three bearings (8) are adopted to support inner holes of the parts to position the measuring reference of the parts; the two guide plates (14) are positioned on the flat plate (19) through cylindrical pins (17), the two guide plates (14) are fixed on the flat plate (19) through screws (15), the movable body (11) is fixed on the flat plate (19) through the flat plates (14) on the two sides, so that the movable body (11) can perform translational motion, and the movable screw (13) is connected on the flat plate (19) through threads; the support (2) is fixed on the flat plate (19) through two slotted cylindrical screws (3), the lever driver (5) is fixed on the support through the slotted cylindrical screws (3), the lever (6) is installed on the lever driver (5) through a cylindrical pin, and the flat contact (4) and the ball contact (7) are installed on the lever through interference.
Description
Technical Field
The invention belongs to the field of coaxiality measuring devices. In particular to an inner hole coaxiality measuring device.
Background
At present, for the detection of the quality element of the 'coaxiality' of a part, the use of a coaxiality measuring gauge, a three-coordinate measuring instrument, a coaxiality gauge and three-coordinate measurement, when the coaxiality is less than 0.05, the use is not applicable; secondly, it is not suitable because the reference portion and the measurement portion of the part are not configured within the same feature. The invention provides the method for detecting the problems of low efficiency, poor detection precision and the like of other detection modes.
Disclosure of Invention
The purpose of the invention is: the coaxiality measuring device can measure the quality factor of the coaxiality of the parts more accurately and efficiently.
In order to solve the technical problem, the technical scheme of the invention is as follows: the coaxiality measuring device comprises four low support legs, wherein the four low support legs are screwed on a flat plate by utilizing threads to form a supporting system of the measuring device, and an operating platform is provided for the measuring device; the inner hole reference positioning system consists of a bearing, a rotating shaft, a movable body and a support with holes, wherein the lower end of the support with holes is provided with a screw, the upper end of the support with holes is provided with an internal threaded hole, the lower end of the screw is arranged on a flat plate, the rotating shaft is positioned through the inner hole of the bearing and screwed on the support with holes, and three bearings are used for supporting the inner hole to position the measuring reference of a part according to the principle that one circle can be positioned at three points; the adjusting system of the coaxiality measuring device is composed of a movable screw, two guide plates, a movable body, a cylindrical pin, a screw, a bearing and a rotating shaft, wherein the two guide plates are positioned on a flat plate through the cylindrical pin; the device comprises a support, a flat contact, a lever driver, a lever, a ball contact, a screw and slotted cylindrical screws, wherein the data pickup mechanism of a measuring part is formed by the support, the flat contact, the lever driver, the lever, the ball contact, the screw and the slotted cylindrical screws, the support is fixed on a flat plate through the two slotted cylindrical screws, the lever driver is fixed on the support through the slotted cylindrical screws, the lever is installed on the lever driver through cylindrical pins, the flat contact and the ball contact are installed on the lever through interference, the measuring result of a product is transmitted through the lever principle, and the coaxiality of the part can be detected through transmitting the measuring result to a dial indicator or a ten-thousandth-minute indicator through the contact.
When the measuring part is measured, the reference hole of the inner hole of the part is arranged on a plane formed by supporting four long columns, the movable screw is screwed, the three bearings can be ensured to be completely attached to the inner hole of the part, the part can be ensured to freely rotate along the axial direction, a dial indicator or a ten-thousandth indicator arranged on a lever driver is adjusted, the ball contact can be ensured to contact the inner wall of the part, the measuring result of a product is transmitted through the lever, and the coaxiality of the part can be detected out by transmitting the measuring result to the dial indicator or the ten-thousandth indicator through the contact.
The specific scheme is as follows: a coaxiality measuring device comprises four low support legs 1 which are screwed on a flat plate 19 by utilizing threads to form a supporting system; the lower end of the support column 16 with the hole is provided with a screw, the upper end of the support column is provided with an internal thread hole, the lower end screw is arranged on the flat plate 19, and the rotating shaft 9 is positioned through an inner hole of the bearing 8 and screwed on the support column 16 with the hole; three bearings 8 are adopted to support inner holes of the parts to position the measurement reference of the parts; the two guide plates 14 are positioned on a flat plate 19 through cylindrical pins 17, the two guide plates 14 are fixed on the flat plate 19 through screws 15, the movable body 11 is fixed on the flat plate 19 through the two guide plates 14 so that the movable body 11 can perform translational motion, and the movable screws 13 are connected on the flat plate 19 through threads; the support 2 is fixed on a flat plate 19 through two slotted cylindrical screws 3, the lever driver 5 is fixed on the support through the slotted cylindrical screws 3, the lever 6 is installed on the lever driver 5 through a cylindrical pin, the flat contact 4 and the ball contact 7 are installed on the lever through interference, and the dial indicator or the ten-thousandth indicator is installed on the lever driver 5 and is in contact with the flat contact 4.
The supporting body is an operation platform of the coaxiality measuring device. The movable body 11 is moved relative to the guide plate 14 by the movable screw 13. The bearing 8, the rotating shaft 9, the movable body 11 and the support column 16 with the hole form an inner hole reference positioning system. The movable screw 13, the two guide plates 14, the movable body 11, the cylindrical pin 17, the screw 15, the bearing 8 and the rotating shaft 9 form an adjusting device of the coaxiality measuring device. The bracket 2, the flat contact 4, the lever driver 5, the lever 6, the ball contact 7, the screw 12 and the slotted cylindrical screw 3 form a data pickup mechanism of a measuring part.
When measuring the part, the benchmark hole of the inner hole of the part is installed on the plane formed by the four long column supports 18, the movable screw 13 is screwed, the three bearings 8 can be completely attached to the inner hole of the part, the part can be ensured to freely rotate along the axial direction, the dial indicator or the ten-thousandth-minute meter installed on the lever driver 5 is adjusted, the ball contact can be ensured to contact the inner wall of the part, the measurement result of the product is transmitted through the lever, and the coaxiality of the part is detected out by transmitting the measurement result to the dial indicator or the ten-thousandth-minute meter through the contact.
The invention has the advantages of convenient use, high detection efficiency, reduced manufacturing cost and better guarantee of the consistency of the quality factor of the coaxiality of the parts.
Drawings
FIG. 1 is a front view of the coaxiality measuring apparatus of the present invention;
FIG. 2 is a side view of the coaxiality measuring apparatus of the present invention;
fig. 3 is a view of the coaxiality measuring apparatus of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
fig. 1 is a drawing of the coaxiality measuring apparatus according to the present invention.
As shown in the figure, the coaxiality measuring device comprises 4 low support legs 1 which are screwed on a flat plate 19 by using threads to form a supporting system of the measuring device and provide an operating platform for the measuring device; an inner hole reference positioning system is formed by a bearing 8, a rotating shaft 9, a movable body 11 and a support column 16 with holes, the lower end of the support column 16 with holes is provided with a screw, the upper end of the support column is provided with an internal thread hole, the lower end of the screw is arranged on a flat plate 19, the rotating shaft 9 is positioned through the inner hole of the bearing 8 and screwed on the support column 16 with holes, and according to the principle that a circle can be positioned at three points, three bearings 8 are used for supporting the inner hole to position the measuring reference of a part; the adjusting system of the coaxiality measuring device is composed of a movable screw 13, two guide plates 14, a movable body 11, a cylindrical pin 17, a screw 15, a bearing 8 and a rotating shaft 9, the two guide plates 14 are positioned on a flat plate 19 through the cylindrical pin 17, the two guide plates 14 are fixed on the flat plate 19 through the screw 15, the movable body 11 is fixed on the flat plate 19 through the two guide plates 14, the translational motion of the movable body 11 is kept, the movable screw 13 is connected on the flat plate 19 through threads, and the movable body 11 can move relative to the guide plates 14 through the movable screw 13; the data pick-up mechanism of the measuring part is composed of a support 2, a flat contact 4, a lever driver 5, a lever 6, a ball contact 7, screws 12 and slotted cylindrical screws 3, the support 2 is fixed on a flat plate 19 through the two slotted cylindrical screws 3, the lever driver 5 is fixed on the support through the slotted cylindrical screws 3, the lever 6 is installed on the lever driver 5 through cylindrical pins, the flat contact 4 and the ball contact 7 are installed on the lever through interference, the error between the distance A1 from the flat contact 4 to the center and the distance A2 from the ball contact 7 to the center is not more than 0.05, the measuring result of a product is transmitted through the lever by the lever principle, and is transmitted to a dial indicator or a ten-thousandth-th-minute indicator through the contacts, and the coaxiality of parts can be detected.
When measuring the part, install the benchmark hole of the hole of part on the plane that is formed by 4 long post supports 18, twist movable screw 13, guarantee that 3 bearings 8 can all paste the part hole tightly to guarantee that the part can follow the axial free rotation, the adjustment is installed amesdial or ten thousand minutes table on lever driver 5, guarantee that the ball contact can contact the part inner wall, transmit the measuring result of product through the lever, transmit the amesdial by the contact, or on the ten thousand minutes table, can detect out the axiality of part.
Claims (4)
1. The coaxiality measuring device is characterized by comprising four low support legs (1) which are screwed on a flat plate (19) by utilizing threads to form a supporting system; the lower end of the support column (16) with the hole is provided with a screw, the upper end of the support column is provided with an internal thread hole, the lower end screw is arranged on a flat plate (19), and the rotating shaft (9) is positioned through an inner hole of the bearing (8) and screwed on the support column (16) with the hole; three bearings (8) are adopted to support inner holes of the parts to position the measuring reference of the parts; the two guide plates (14) are positioned on the flat plate (19) through cylindrical pins (17), the two guide plates (14) are fixed on the flat plate (19) through screws (15), the movable body (11) is fixed on the flat plate (19) through the two guide plates (14) so that the movable body (11) can perform translational motion, and the movable screw (13) is connected to the flat plate (19) through threads; the device comprises a support (2), a lever driver (5), a lever (6), a flat contact (4), a ball contact (7), a bearing (8), a rotating shaft (9), a movable body (11) and a support column (16) with holes, wherein the support (2) is fixed on a flat plate (19) through two slotted cylindrical screws (3), the lever driver (5) is fixed on the support through the slotted cylindrical screws (3), the lever (6) is installed on the lever driver (5) through cylindrical pins, the flat contact (4) and the ball contact (7) are installed on the lever through interference, the bearing (8), the rotating shaft (9) form an inner hole reference positioning system, a movable screw (13), two guide plates (14), the movable body (11), the cylindrical pins (17), a screw (15), the bearing (8) and the rotating shaft (9) form an adjusting device of a coaxiality measuring device, and the support (2), the flat contact (4), the lever driver (5), the lever (6), the ball contact (7), the screw (12) and the slotted cylindrical screws (3) form a data pickup mechanism of a measuring part;
when measuring the part, the benchmark hole of the hole of part is installed on the plane that is supported (18) and forms by four long posts, twist movable screw (13), make three bearing (8) can all paste the part hole tightly, and guarantee that the part can follow the axial free rotation, micrometer or ten thousand minutes table on lever actuator (5) are installed in the adjustment, guarantee that the ball contact can contact the part inner wall, transmit the measuring result of product through the lever, transmit the micrometer by the contact, or on the ten thousand minutes table, detect out the axiality of part.
2. The coaxiality measuring apparatus according to claim 1, wherein the dial gauge or the ten-thousandth gauge is mounted on the lever actuator (5) and is in contact with the flat contact (4).
3. The coaxiality measuring apparatus according to claim 1, wherein the support is an operating platform of the coaxiality measuring apparatus.
4. The coaxiality measuring apparatus according to claim 1, wherein the movable body (11) is moved relative to the two guide plates (14) by a movable screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911073915.4A CN110953972B (en) | 2019-11-05 | 2019-11-05 | Inner hole coaxiality measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911073915.4A CN110953972B (en) | 2019-11-05 | 2019-11-05 | Inner hole coaxiality measuring device |
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| Publication Number | Publication Date |
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| CN110953972A CN110953972A (en) | 2020-04-03 |
| CN110953972B true CN110953972B (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911073915.4A Active CN110953972B (en) | 2019-11-05 | 2019-11-05 | Inner hole coaxiality measuring device |
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| CN (1) | CN110953972B (en) |
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| CN101726237A (en) * | 2009-12-19 | 2010-06-09 | 成都飞机工业（集团）有限责任公司 | Device for coaxially detecting coaxial errors of inner holes and outer circles |
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| CN106052536A (en) * | 2016-08-16 | 2016-10-26 | 上海第机床厂有限公司 | Deep hole coaxiality measuring tool |
| CN106643437A (en) * | 2016-09-28 | 2017-05-10 | 中国南方航空工业(集团)有限公司 | Coaxiality measuring device and method for mechanical part |
| CN107966092A (en) * | 2017-12-12 | 2018-04-27 | 中国科学院西安光学精密机械研究所 | Concentricity control device and control method for bearing pre-fastening measurement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201522254U (en) * | 2009-11-20 | 2010-07-07 | 白露 | Perpendicularity calibrating device for holes |
| CN103673952B (en) * | 2013-12-31 | 2017-01-25 | 玉环普天单向器有限公司 | Device and method for measuring raceway of one-way overrunning clutch directional sleeve |
| CN206469824U (en) * | 2016-11-24 | 2017-09-05 | 成都国营锦江机器厂 | Case bushing coaxality measurement fixture |
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2019
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042755A (en) * | 2001-07-31 | 2003-02-13 | Toyota Motor Corp | Centering device and coaxiality measuring method using the same |
| CN101013029A (en) * | 2006-02-03 | 2007-08-08 | 奥林巴斯医疗株式会社 | Concentricity and squareness measuring apparatus and methdo |
| CN101726237A (en) * | 2009-12-19 | 2010-06-09 | 成都飞机工业（集团）有限责任公司 | Device for coaxially detecting coaxial errors of inner holes and outer circles |
| CN202092589U (en) * | 2011-06-10 | 2011-12-28 | 王鲁潍 | Vertical type concentricity measuring device |
| CN105547117A (en) * | 2015-12-02 | 2016-05-04 | 四川凌峰航空液压机械有限公司 | Inner-hole groove coaxiality tolerance measurement device |
| CN205352272U (en) * | 2016-02-05 | 2016-06-29 | 重庆理工大学 | Inner hole measuring examines utensil from centering |
| CN106052536A (en) * | 2016-08-16 | 2016-10-26 | 上海第机床厂有限公司 | Deep hole coaxiality measuring tool |
| CN106643437A (en) * | 2016-09-28 | 2017-05-10 | 中国南方航空工业(集团)有限公司 | Coaxiality measuring device and method for mechanical part |
| CN107966092A (en) * | 2017-12-12 | 2018-04-27 | 中国科学院西安光学精密机械研究所 | Concentricity control device and control method for bearing pre-fastening measurement |
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| CN110953972A (en) | 2020-04-03 |
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