CN110954046A - Automatic taper hole centering device and taper hole taper measuring method thereof - Google Patents
Automatic taper hole centering device and taper hole taper measuring method thereof Download PDFInfo
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- CN110954046A CN110954046A CN201911072227.6A CN201911072227A CN110954046A CN 110954046 A CN110954046 A CN 110954046A CN 201911072227 A CN201911072227 A CN 201911072227A CN 110954046 A CN110954046 A CN 110954046A
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- sliding block
- conical
- taper hole
- conical sliding
- taper
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a taper hole automatic centering device, which comprises: the device comprises a central shaft, a front adjusting nut, a front supporting claw, a rear conical sliding block, a rear adjusting nut, a spring, a front conical sliding block, a positioning cylinder, at least two front supporting claws and at least two rear supporting claws. The invention also discloses a taper measuring method of the taper hole. The invention has the advantages of accurate centering and wide applicable aperture range.
Description
Technical Field
The invention relates to the field of geometric quantity measurement, in particular to a taper hole automatic centering device and a taper hole taper measuring method thereof.
Background
Taper hole centering is a necessary means for ensuring accurate measurement of geometric parameters of the taper hole, the axis of the taper hole can be determined through the centers of the sections of the two taper holes, and then the measurement sensor is arranged on the axis to realize measurement of the taper parameters of the taper hole.
At present, three-point centering is mostly adopted for the centering mode in the straight hole, but no report is found for the centering of the taper hole.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the automatic taper hole centering device and the taper hole taper measuring method thereof, which have the advantages of accurate centering and wide applicable aperture range.
The technical scheme is as follows:
a taper hole self-centering device, comprising: the device comprises a central shaft, a front adjusting nut, a rear conical sliding block, a rear adjusting nut, a spring, a front conical sliding block, a positioning cylinder, at least two front supporting claws and at least two rear supporting claws; threads are processed on the outer walls of two ends of the central shaft, one end of the front supporting claw is a spherical surface, and the other end of the front supporting claw is an inclined surface; one end of the rear supporting claw is a spherical surface, and the other end of the rear supporting claw is an inclined surface; the front conical sliding block and the rear conical sliding block are identical in structural shape, the outer wall surface is conical, and a through hole with the same outer diameter as that of the central shaft is machined in the axis; the wall surface of the positioning cylinder is provided with at least two groups of positioning holes, and each group of the positioning holes is provided with at least two positioning holes; the front conical sliding block, the rear conical sliding block and the spring are sleeved on the central shaft, and the spring is positioned between the front conical sliding block and the rear conical sliding block; the conical surfaces of the front conical sliding block and the rear conical sliding block face outwards, the front adjusting nut is connected on the thread on the outer side of the front conical sliding block, and the rear adjusting nut is connected on the thread on the outer side of the rear conical sliding block; the front conical sliding block, the rear conical sliding block, the spring and the central shaft are positioned in the positioning cylinder, the front supporting claw and the rear supporting claw are sleeved in different groups of positioning holes, the inclined plane of the front supporting claw is abutted against the conical surface of the front conical sliding block, and the spherical surface is positioned outside the positioning cylinder; the inclined plane of the rear supporting claw is propped against the conical surface of the rear conical sliding block, and the spherical surface is positioned outside the positioning cylinder.
Furthermore, the taper angle of the front conical sliding block and the taper angle of the rear conical sliding block are 90 degrees, the inclination angle of the inclined plane of the front supporting claw is 45 degrees, and the inclination angle of the inclined plane of the rear supporting claw is 45 degrees.
Furthermore, the inclined plane is a curved inclined plane, and the curvature of the inclined plane is matched with the conical surface of the front conical sliding block or the rear conical sliding block.
Furthermore, each group comprises three positioning holes, the three front supporting claws have the same length and are positioned on the same plane, the inclined planes of the three front supporting claws, which are contacted with the conical surface, are positioned on the same circle, and the three outer spherical surfaces are positioned on the same circle; the three rear supporting claws have the same length and are positioned on the same plane, the inclined planes of the three rear supporting claws, which are contacted with the conical surface, are positioned on the same circle, and the three outer spherical surfaces are positioned on the same circle; the included angle of two adjacent positioning holes in the same group is 120 degrees.
Furthermore, the positions of the front adjusting nut and the rear adjusting nut are changed to realize the adjustment of the supporting force of the supporting claw.
A taper measuring method for taper holes comprises the following steps:
when the automatic centering device for the taper hole is used for centering in the taper hole, the taper hole is automatically centered and placed in the taper hole, and the front supporting claw and the rear supporting claw respectively abut against the wall surface of the taper hole;
the positioning cylinder is pushed to continue to slide in the conical hole, so that the central shaft is positioned on the axis of the conical hole, and the purpose of automatic centering is achieved.
Preferably, the positioning cylinder is continuously pushed, the taper hole compresses the front supporting claw to retract inwards, and the inclined surface of the front supporting claw pushes the front conical sliding block to slide; the rear supporting claw retracts inwards, and the inclined surface of the rear supporting claw pushes the rear conical sliding block to slide; and measuring the distance between the bottom surfaces of the front conical sliding block and the rear conical sliding block and the initial distance variation, wherein the ratio of the variation to the distance between the front support 3 and the rear support claw is the taper of the conical hole.
The invention has the technical effects that:
the center of one section of the taper hole can be determined through the front supporting claw, and the center of the other section of the taper hole can be determined through the rear supporting claw, so that the automatic centering of the taper hole and the taper measurement of the taper hole are realized. Has the advantages of accurate centering and wide applicable aperture range.
Drawings
FIG. 1 is a schematic structural view of a taper hole self-centering device according to the present invention;
fig. 2 is an exploded view of the self-centering device for a tapered hole according to the present invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
FIG. 1 is a schematic view of the automatic centering device for taper hole in the present invention; fig. 2 is an exploded view of the self-centering device for a taper hole according to the present invention.
Taper hole self-centering device, the structure includes: the device comprises a central shaft 1, a front adjusting nut 2, a front supporting claw 3, a rear supporting claw 4, a rear conical sliding block 5, a rear adjusting nut 6, a spring 7, a front conical sliding block 8 and a positioning cylinder 9.
The outer walls of the two ends of the central shaft 1 are provided with threads. One end of the front supporting claw 3 is a spherical surface, the other end is an inclined surface, and the inclination angle of the inclined surface is 45 degrees; one end of the rear supporting claw 4 is a spherical surface, the other end is an inclined surface, and the inclination angle of the inclined surface is 45 degrees. In the preferred embodiment, the inclined plane is a curved inclined plane, and the curvature of the inclined plane is matched with the conical surface of the front conical sliding block 8 or the rear conical sliding block 5.
The front conical sliding block 8 and the rear conical sliding block 5 are identical in structural shape, the cone angle (the cone angle refers to the included angle between two generatrices of the shaft section of the cone) is 90 degrees, and a through hole with the same outer diameter as that of the central shaft 1 is machined in the axis.
The wall surface of the positioning cylinder 9 is provided with 6 positioning holes 91, each 3 positioning holes are in a group and are positioned on the same plane, and the included angle between every two adjacent positioning holes 91 is 120 degrees.
The front conical sliding block 8, the rear conical sliding block 5 and the spring 7 are sleeved on the central shaft 1, the spring 7 is positioned between the front conical sliding block 8 and the rear conical sliding block 5, conical surfaces of the front conical sliding block 8 and the rear conical sliding block 5 face to the outside, the front adjusting nut 2 is connected on a thread of the central shaft 1 on the outer side of the front conical sliding block 8, and the rear adjusting nut 6 is connected on a thread of the central shaft 1 on the outer side of the rear conical sliding block 5.
The front conical sliding block 8, the rear conical sliding block 5, the spring 7 and the central shaft 1 are positioned in the positioning cylinder 9; the three (at least two) front supporting claws 3 are respectively positioned in the positioning holes 91 on the same plane, the inclined planes of the front supporting claws 3 are propped against the conical surface of the front conical sliding block 8, and the spherical surface is positioned outside the positioning cylinder 9. The three front supporting claws 3 have the same length and are positioned on the same plane, the inclined planes of the three front supporting claws 3, which are contacted with the conical surface, are positioned on the same circle, and the spherical surfaces of the three outer sides are positioned on the same circle.
Three (at least two) rear supporting claws 4 are respectively positioned in the positioning holes 91 on the same plane, the inclined planes of the rear supporting claws 4 are propped against the conical surface of the rear conical sliding block 5, and the spherical surface is positioned outside the positioning barrel 9. The three rear supporting claws 4 have the same length and are positioned on the same plane, the inclined planes of the three rear supporting claws 4, which are contacted with the conical surface, are positioned on the same circle, and the spherical surfaces of the three outer sides are positioned on the same circle.
The adjustment of the supporting force of the supporting claw can be realized by changing the positions of the front adjusting nut 2 and the rear adjusting nut 6, namely changing the distance between the front conical sliding block 8 and the rear conical sliding block 5 and changing the compression length of the spring 7.
The taper measuring method of the taper hole specifically comprises the following steps:
step 1: when the automatic centering device for the taper hole is used for centering in the taper hole, the taper hole is automatically centered and placed in the taper hole, and the front supporting claw 3 and the rear supporting claw 4 are respectively abutted against the wall surface of the taper hole;
step 2: the positioning cylinder 9 is pushed to continuously slide in the conical hole, so that the central shaft 1 is positioned on the axis of the conical hole, and the purpose of automatic centering is achieved;
and step 3: the positioning cylinder 9 is pushed continuously, the taper hole compresses the front supporting claw 3 to retract inwards, and the inclined surface of the front supporting claw 3 pushes the front conical sliding block 8 to slide; the rear supporting claw 4 retracts inwards, and the inclined surface of the rear supporting claw 4 pushes the rear conical sliding block 5 to slide;
and 4, step 4: and measuring the distance between the bottom surfaces of the front conical sliding block 8 and the rear conical sliding block 5 and the initial distance variation, wherein the ratio of the variation to the distance between the front supporting claw 3 and the rear supporting claw 4 is the taper of the taper hole.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (7)
1. A taper hole self-centering device, comprising: the device comprises a central shaft, a front adjusting nut, front supporting claws, rear supporting claws, a rear conical sliding block, a rear adjusting nut, a spring, a front conical sliding block, a positioning cylinder, at least two front supporting claws and at least two rear supporting claws; threads are processed on the outer walls of two ends of the central shaft, one end of the front supporting claw is a spherical surface, and the other end of the front supporting claw is an inclined surface; one end of the rear supporting claw is a spherical surface, and the other end of the rear supporting claw is an inclined surface; the front conical sliding block and the rear conical sliding block are identical in structural shape, the outer wall surface is conical, and a through hole with the same outer diameter as that of the central shaft is machined in the axis; the wall surface of the positioning cylinder is provided with at least two groups of positioning holes, and each group of the positioning holes is provided with at least two positioning holes; the front conical sliding block, the rear conical sliding block and the spring are sleeved on the central shaft, and the spring is positioned between the front conical sliding block and the rear conical sliding block; the conical surfaces of the front conical sliding block and the rear conical sliding block face outwards, the front adjusting nut is connected on the thread on the outer side of the front conical sliding block, and the rear adjusting nut is connected on the thread on the outer side of the rear conical sliding block; the front conical sliding block, the rear conical sliding block, the spring and the central shaft are positioned in the positioning cylinder, the front supporting claw and the rear supporting claw are sleeved in different groups of positioning holes, the inclined plane of the front supporting claw is abutted against the conical surface of the front conical sliding block, and the spherical surface is positioned outside the positioning cylinder; the inclined plane of the rear supporting claw is propped against the conical surface of the rear conical sliding block, and the spherical surface is positioned outside the positioning cylinder.
2. The taper hole self-centering device according to claim 1, wherein the taper angle of the front tapered slider and the rear tapered slider is 90 °, the inclination angle of the inclined surface of the front supporting jaw is 45 °, and the inclination angle of the inclined surface of the rear supporting jaw is 45 °.
3. The automatic centering device for the taper hole according to claim 1 or 2, wherein the inclined plane is a curved inclined plane, and the curvature of the inclined plane is matched with the tapered surface of the front tapered sliding block or the rear tapered sliding block.
4. The automatic centering device for the taper hole according to claim 1 or 2, wherein each set is three positioning holes, the three front supporting claws have the same length and are located on the same plane, the inclined planes of the three front supporting claws, which are in contact with the conical surface, are located on the same circle, and the three outer spherical surfaces are located on the same circle; the three rear supporting claws have the same length and are positioned on the same plane, the inclined planes of the three rear supporting claws, which are contacted with the conical surface, are positioned on the same circle, and the three outer spherical surfaces are positioned on the same circle; the included angle of two adjacent positioning holes in the same group is 120 degrees.
5. The taper hole self-centering device according to claim 1, wherein the adjustment of the supporting force of the supporting jaw is achieved by changing the positions of the front adjusting nut and the rear adjusting nut.
6. A taper measuring method for taper holes comprises the following steps:
when the automatic centering device for the taper hole is used for centering in the taper hole, the taper hole is automatically centered and placed in the taper hole, and the front supporting claw and the rear supporting claw respectively abut against the wall surface of the taper hole;
the positioning cylinder is pushed to continue to slide in the conical hole, so that the central shaft is positioned on the axis of the conical hole, and the purpose of automatic centering is achieved.
7. The taper measuring method of the taper hole according to claim 6, wherein the positioning cylinder is pushed continuously, the taper hole compresses the front supporting claw to retract inwards, and the inclined plane of the front supporting claw pushes the front tapered slide block to slide; the rear supporting claw retracts inwards, and the inclined surface of the rear supporting claw pushes the rear conical sliding block to slide; and measuring the distance between the bottom surfaces of the front conical sliding block and the rear conical sliding block and the initial distance variation, wherein the ratio of the variation to the distance between the front support 3 and the rear support claw is the taper of the conical hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072227.6A CN110954046A (en) | 2019-11-05 | 2019-11-05 | Automatic taper hole centering device and taper hole taper measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072227.6A CN110954046A (en) | 2019-11-05 | 2019-11-05 | Automatic taper hole centering device and taper hole taper measuring method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110954046A true CN110954046A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911072227.6A Pending CN110954046A (en) | 2019-11-05 | 2019-11-05 | Automatic taper hole centering device and taper hole taper measuring method thereof |
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| CN (1) | CN110954046A (en) |
Citations (14)
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|---|---|---|---|---|
| CN101451807A (en) * | 2007-11-29 | 2009-06-10 | 李汀 | Hole taper gauge |
| CN102109315A (en) * | 2011-01-09 | 2011-06-29 | 无锡银联机械有限公司 | Rapid detection tool for large taper hole |
| CN102679941A (en) * | 2012-05-09 | 2012-09-19 | 西安交通大学 | Device for detecting taper of outer cone of conical ring |
| CN202719950U (en) * | 2012-08-20 | 2013-02-06 | 富阳新马工具有限公司 | Tool for testing conicity of part |
| CN103443581A (en) * | 2011-03-15 | 2013-12-11 | 西门子能量股份有限公司 | Self centering bore measurement unit |
| CN103542831A (en) * | 2012-07-12 | 2014-01-29 | 中国石油天然气集团公司 | Portable petroleum pipe external thread taper measuring instrument |
| CN203432584U (en) * | 2013-08-28 | 2014-02-12 | 南京南化建设有限公司 | Laser centering device |
| CN204007393U (en) * | 2014-07-15 | 2014-12-10 | 内蒙古北方重工业集团有限公司 | A kind of deep hole centring means |
| CN205580351U (en) * | 2016-03-31 | 2016-09-14 | 南通倍塔新星电子有限公司 | Smart bore depth degree detection device of special tapering of location slider |
| CN106949856A (en) * | 2017-06-01 | 2017-07-14 | 南京信息职业技术学院 | Deep hole straightness accuracy measuring robot based on PSD |
| CN107747920A (en) * | 2017-08-31 | 2018-03-02 | 广东骏驰科技股份有限公司 | A kind of servicing unit for automobile pipe fitting high-acruracy survey |
| CN109297437A (en) * | 2018-10-25 | 2019-02-01 | 南京工程学院 | One kind is based on the self-centering deep blind hole linearity measurer of PSD |
| CN109990740A (en) * | 2019-04-30 | 2019-07-09 | 南京信息职业技术学院 | Robot for measuring linearity of stepped hole |
| CN110146039A (en) * | 2019-05-15 | 2019-08-20 | 南京信息职业技术学院 | Positioning device for central axis of circular hole |
-
2019
- 2019-11-05 CN CN201911072227.6A patent/CN110954046A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451807A (en) * | 2007-11-29 | 2009-06-10 | 李汀 | Hole taper gauge |
| CN102109315A (en) * | 2011-01-09 | 2011-06-29 | 无锡银联机械有限公司 | Rapid detection tool for large taper hole |
| CN103443581A (en) * | 2011-03-15 | 2013-12-11 | 西门子能量股份有限公司 | Self centering bore measurement unit |
| CN102679941A (en) * | 2012-05-09 | 2012-09-19 | 西安交通大学 | Device for detecting taper of outer cone of conical ring |
| CN103542831A (en) * | 2012-07-12 | 2014-01-29 | 中国石油天然气集团公司 | Portable petroleum pipe external thread taper measuring instrument |
| CN202719950U (en) * | 2012-08-20 | 2013-02-06 | 富阳新马工具有限公司 | Tool for testing conicity of part |
| CN203432584U (en) * | 2013-08-28 | 2014-02-12 | 南京南化建设有限公司 | Laser centering device |
| CN204007393U (en) * | 2014-07-15 | 2014-12-10 | 内蒙古北方重工业集团有限公司 | A kind of deep hole centring means |
| CN205580351U (en) * | 2016-03-31 | 2016-09-14 | 南通倍塔新星电子有限公司 | Smart bore depth degree detection device of special tapering of location slider |
| CN106949856A (en) * | 2017-06-01 | 2017-07-14 | 南京信息职业技术学院 | Deep hole straightness accuracy measuring robot based on PSD |
| CN107747920A (en) * | 2017-08-31 | 2018-03-02 | 广东骏驰科技股份有限公司 | A kind of servicing unit for automobile pipe fitting high-acruracy survey |
| CN109297437A (en) * | 2018-10-25 | 2019-02-01 | 南京工程学院 | One kind is based on the self-centering deep blind hole linearity measurer of PSD |
| CN109990740A (en) * | 2019-04-30 | 2019-07-09 | 南京信息职业技术学院 | Robot for measuring linearity of stepped hole |
| CN110146039A (en) * | 2019-05-15 | 2019-08-20 | 南京信息职业技术学院 | Positioning device for central axis of circular hole |
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Application publication date: 20200403 |
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