CN108709471B - Flexible circular arc center of circle positioning device - Google Patents
Flexible circular arc center of circle positioning device Download PDFInfo
- Publication number
- CN108709471B CN108709471B CN201810417506.0A CN201810417506A CN108709471B CN 108709471 B CN108709471 B CN 108709471B CN 201810417506 A CN201810417506 A CN 201810417506A CN 108709471 B CN108709471 B CN 108709471B
- Authority
- CN
- China
- Prior art keywords
- circular arc
- supporting rod
- flexible circular
- circle
- telescopic supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Abstract
It is shunk the invention discloses a kind of using circular arc, the principle of concentric circles positioning centre, convenient for being accurately positioned the flexible circular arc center of circle positioning device in the center of circle.The flexible circular arc center of circle positioning device is more than the flexible circular arc of full circle 3/4ths including arc length；Telescopic supporting rod is provided in the flexible circular arc, the both ends of the telescopic supporting rod are fixedly connected with the inner ring of flexible circular arc；The telescopic supporting rod is the diameter of flexible circular arc；The center of the telescopic supporting rod is provided with centering hammer body, and described centering hammer body one end is cone, and passes through telescopic supporting rod, and the other end is provided with rectangular block；There are two telescopic devices for setting on the inner wall of the flexible circular arc；Two telescopic devices are located at the two sides of telescopic supporting rod, and form cross with telescopic supporting rod.The center of circle can quickly be made using the circular arc center of circle positioning device that stretches, arc diameter has biggish adjustable range.
Description
Technical field
The present invention relates to a kind of center of circle positioning device, and in particular to a kind of flexible circular arc center of circle positioning device.
Background technique
It is well-known: in production and processing, need to process the bowlder of some variations, generally require its internal diameter of specification or
Outer diameter, in this way, it would be desirable to first find the center of circle of circular hole, the current center of circle method for determining circle can by measuring diameter of a circle,
This method centering machining accuracy is not high, complicated for operation.Center of circle measuring device patent, application number are 201310543078.3,
This patent structure includes center disk, and one end is connect with center disk, and the other end is equipped with left support arm and the right side of laser harness device
Support arm, left support arm and right support arm are telescopic, the original light and left support arm and right support of laser harness device
Arm is vertical.This patent needs laser harness device, and laser harness device cost is relatively high, and service life is not grown, and cost performance is not high, and is answered
Range is not wide.A kind of center of circle positioning device patent, application number are 201621428482.1, this device includes lathe work
Platform, pedestal, double end cylinder, gas supply cylinder, push rod, push top and push plate etc. are constituted, and the part that this patent includes is more complicated for operation,
It is unfavorable for quickly producing and processing.In this way, quickly making the center of circle by a kind of flexible circular arc device of centering, and in next step
It can quickly be carried out when processing, this device cost performance is high, can improve precision and production efficiency.
Summary of the invention
It is shunk technical problem to be solved by the invention is to provide a kind of using circular arc, the principle of concentric circles positioning centre,
Convenient for being accurately positioned the flexible circular arc center of circle positioning device in the center of circle.
The technical solution adopted by the present invention to solve the technical problems is: flexible circular arc center of circle positioning device, including arc length
More than the flexible circular arc of full circle 3/4ths；It is provided with telescopic supporting rod in the flexible circular arc, the two of the telescopic supporting rod
End is fixedly connected with the inner ring of flexible circular arc；The telescopic supporting rod is the diameter of flexible circular arc；
The center of the telescopic supporting rod is provided with centering hammer body, and described centering hammer body one end is cone, and is passed through
Telescopic supporting rod, the other end are provided with rectangular block；
There are two telescopic devices for setting on the inner wall of the flexible circular arc；Two telescopic devices are located at the two of telescopic supporting rod
Side, and cross is formed with telescopic supporting rod；
The telescopic device includes cylinder, and described cylinder one end is provided with bolt, and the other end is provided with sliding with cylinder bore
The sliding block of dynamic cooperation；Spring is provided in the cylinder, the spring is between sliding block and one end of bolt；The bolt one
In end insertion cylinder, and it is threadedly coupled with cylinder；The other end is provided with locating convex block；
One end that the bolt is provided with locating convex block is contacted with telescopic supporting rod；The locating convex block pair of two telescopic devices
Together；The sliding block is fixedly connected with flexible circular arc；The telescopic supporting rod and flexible circular arc are all made of polyurethane rubber.
Further, the cylinder uses plastic production.
Further, the cross section of the telescopic supporting rod is rectangle.
Further, the cavity of described cylinder one end is rectangular cavity, and the cavity of the other end is circular cavity, and the circular cavity is horizontal
The circle in section is the inscribed circle of the rectangle of rectangular cavity cross section；The bolt is threadedly engaged with circular cavity, and the sliding block is square
Shape block, the sliding block are slidably matched with rectangular cavity.
Preferably, the cone of the centering hammer body uses steel nail.
The beneficial effects of the present invention are: flexible circular arc center of circle positioning device of the present invention is determined not by flexible circular arc
Know the round center of circle, therefore retractility is more preferable, precision is higher, the scope of application is larger.The material of institute's telescopic supporting rod and flexible circular arc
Using polyurethane rubber, this material this have the advantage that with hardness is high, intensity is good, high resiliency, high-wearing feature, it is tear-resistant,
It is ageing-resistant.Flexible circular arc center of circle positioning device of the present invention can quickly make the center of circle, and arc diameter has biggish tune
Adjusting range.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flexible circular arc center of circle positioning device in the embodiment of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
It is indicated in figure: 1- telescopic supporting rod, 2- centering cone, 3- cylinder, 4- bolt, 5- spring, 6- sliding block, 7- convex
Block, 8- stretch circular arc.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, flexible circular arc center of circle positioning device of the present invention, is more than full circle 3/4ths including arc length
Flexible circular arc 8；Telescopic supporting rod 1, the both ends of the telescopic supporting rod 1 and flexible circular arc 8 are provided in the flexible circular arc 8
Inner ring is fixedly connected；The telescopic supporting rod 1 is the diameter of flexible circular arc 8；
The center of the telescopic supporting rod 1 is provided with centering hammer body 2, and described 2 one end of centering hammer body is cone, and is worn
Telescopic supporting rod 1 is crossed, the other end is provided with rectangular block；
There are two telescopic devices for setting on the inner wall of the flexible circular arc 8；Two telescopic devices are located at telescopic supporting rod 1
Two sides, and cross is formed with telescopic supporting rod 1；
The telescopic device includes cylinder 3, and described 3 one end of cylinder is provided with bolt 4, the other end be provided with in cylinder 3
The sliding block 6 that chamber is slidably matched；Spring 5 is provided in the cylinder 3, the spring 5 is between sliding block 6 and one end of bolt 4；
In 4 one end of bolt insertion cylinder 3, and it is threadedly coupled with cylinder 3；The other end is provided with locating convex block 7；
One end that the bolt 4 is provided with locating convex block 7 is contacted with telescopic supporting rod 1；The convex of two telescopic devices
Block 7 is aligned；The sliding block 6 is fixedly connected with flexible circular arc 8；The telescopic supporting rod 1 and flexible circular arc 8 are all made of polyurethane
Rubber.
During application, flexible circular arc 8 is placed in the circle for needing positioning centre first, so that centering cone 2
Cone and positioning face contact；Then by turning bolt 4, so that change 5 stress of spring, then acting slider 6, sliding block 6
Stress variation keeps flexible circular arc 8 flexible in a certain range then by power stepless action in flexible circular arc 8 so that flexible circular arc 8 and
The circle for needing to position is close to.
During turning bolt 4, since the bolt 4 is provided with one end of locating convex block 7 and telescopic supporting rod 1 connects
Touching；The locating convex block 7 of two telescopic devices is aligned；Therefore two of 2 two sides of telescopic supporting rod are made to stretch referring to locating convex block 7
Device is turned apart from identical；So that flexible circular arc 8 is in telescopic process, telescopic supporting rod 2 is always flexible circular arc 8
Internal diameter；The center of circle of flexible circular arc 8 is located in the cone of centering cone 2；When the circle patch for making flexible circular arc 8 with needing positioning centre
When tight, the tip position for cone 2 of feeling relieved at this time is to need the center of circle of centering.With the awl cone rectangle connected in centering hammer body 2
The cone of block, centering hammer body 2 show that a dot, this dot are exactly the center of circle of unknown circle on the positioning plane.
In conclusion flexible circular arc center of circle positioning device of the present invention is by the circular arc that stretches come the circle of fixed unknown circle
The heart, therefore retractility is more preferable, precision is higher, the scope of application is larger.The material of institute's telescopic supporting rod and flexible circular arc uses poly- ammonia
Ester rubber, this material this have the advantage that with hardness is high, intensity is good, high resiliency, high-wearing feature, tear-resistant, ageing-resistant.This
The invention flexible circular arc center of circle positioning device can quickly make the center of circle, and arc diameter has biggish adjustable range；And
And positioning operation is easy, can be realized quick positioning centre.
In order to mitigate the quality of whole device, further, the cylinder 3 uses plastic production.It is fixed for the ease of placing
Position device, it is preferred that the cross section of the telescopic supporting rod 1 is rectangle.
In order to avoid sliding block 6 rotates during sliding, further, the cavity of described 3 one end of cylinder is square
Shape chamber, the cavity of the other end are circular cavity, and the circle of the circular cavity cross section is the inscribed circle of the rectangle of rectangular cavity cross section；
The bolt 4 is threadedly engaged with circular cavity, and the sliding block 6 is rectangular block, and the sliding block 6 is slidably matched with rectangular cavity.
For the ease of getting the center of circle in positioning plane, further, the cone of the centering hammer body 2 uses steel nail.
Claims (5)
1. flexible circular arc center of circle positioning device, it is characterised in that: be more than the flexible circular arc (8) of full circle 3/4ths including arc length；
It is provided with telescopic supporting rod (1) in the flexible circular arc (8), the both ends of the telescopic supporting rod (1) are interior with flexible circular arc (8)
Circle is fixedly connected；The telescopic supporting rod (1) is the diameter of flexible circular arc (8)；
The center of the telescopic supporting rod (1) is provided with centering hammer body (2), and the centering hammer body (2) one end is cone, and
Across telescopic supporting rod (1), the other end is provided with rectangular block；
There are two telescopic devices for setting on the inner wall of the flexible circular arc (8)；Two telescopic devices are located at telescopic supporting rod (1)
Two sides, and cross is formed with telescopic supporting rod (1)；
The telescopic device includes cylinder (3), and described cylinder (3) one end is provided with bolt (4), and the other end is provided with and cylinder
(3) sliding block (6) that inner cavity is slidably matched；Is provided with spring (5) in the cylinder (3), the spring (5) be located at sliding block (6) and
Between one end of bolt (4)；In bolt (4) one end insertion cylinder (3), and it is threadedly coupled with cylinder (3)；Other end setting
There are locating convex block (7)；
One end that the bolt (4) is provided with locating convex block (7) is contacted with telescopic supporting rod (1)；The positioning of two telescopic devices
Convex block (7) alignment；The sliding block (6) is fixedly connected with flexible circular arc (8)；The telescopic supporting rod (1) and flexible circular arc (8)
It is all made of polyurethane rubber.
2. flexible circular arc center of circle positioning device as described in claim 1, it is characterised in that: the cylinder (3) uses plastics system
Make.
3. flexible circular arc center of circle positioning device as described in claim 1, it is characterised in that: the cross of the telescopic supporting rod (1)
Section is rectangle.
4. flexible circular arc center of circle positioning device as described in claim 1, it is characterised in that: the cavity of described cylinder (3) one end
For rectangular cavity, the cavity of the other end is circular cavity, and the circle of the circular cavity cross section is the interior of the rectangle of rectangular cavity cross section
Connect circle；The bolt (4) is threadedly engaged with circular cavity, and the sliding block (6) is rectangular block, and the sliding block (6) and rectangular cavity are slided
Cooperation.
5. flexible circular arc center of circle positioning device as described in claim 1, it is characterised in that: the cone of centering hammer body (2)
Using steel nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417506.0A CN108709471B (en) | 2018-05-04 | 2018-05-04 | Flexible circular arc center of circle positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417506.0A CN108709471B (en) | 2018-05-04 | 2018-05-04 | Flexible circular arc center of circle positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108709471A CN108709471A (en) | 2018-10-26 |
| CN108709471B true CN108709471B (en) | 2019-09-17 |
Family
ID=63867738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810417506.0A Active CN108709471B (en) | 2018-05-04 | 2018-05-04 | Flexible circular arc center of circle positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108709471B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936230A (en) * | 2019-12-18 | 2020-03-31 | 广西柳工机械股份有限公司 | Round hole center positioning device, round hole center line drawing and distance measuring device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD140788A1 (en) * | 1979-01-31 | 1980-03-26 | Werner Lotze | BUTTON FOR MULTI-AXIS MEASUREMENT |
| CN202195793U (en) * | 2011-07-14 | 2012-04-18 | 山西太钢不锈钢股份有限公司 | Three-phase electrode circle center positioning device for electric furnace and ladle refining furnace |
| CN202304698U (en) * | 2011-10-25 | 2012-07-04 | 中国石油天然气集团公司 | Three-wing bit measuring gauge |
| KR20140010625A (en) * | 2012-07-16 | 2014-01-27 | 현대중공업 주식회사 | Leg lengh gauge |
| CN103047919A (en) * | 2012-12-25 | 2013-04-17 | 青特集团有限公司 | Axle housing self-centering special detecting tool |
| 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 |
| CN204321934U (en) * | 2014-12-26 | 2015-05-13 | 合肥熔安动力机械有限公司 | A kind of circular hole centering tool |
| CN205593454U (en) * | 2016-04-29 | 2016-09-21 | 于江伟 | Circle center positioner |
| CN205718925U (en) * | 2016-07-01 | 2016-11-23 | 成都市龙泉通惠实业有限责任公司 | Piston body external diameter detection device |
| CN107860295A (en) * | 2017-10-20 | 2018-03-30 | 陈磊 | One kind building pipe fitting internal diameter rapid measurement device |
| CN208653331U (en) * | 2018-05-04 | 2019-03-26 | 桂林电子科技大学 | Flexible circular arc center of circle positioning device |
-
2018
- 2018-05-04 CN CN201810417506.0A patent/CN108709471B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936230A (en) * | 2019-12-18 | 2020-03-31 | 广西柳工机械股份有限公司 | Round hole center positioning device, round hole center line drawing and distance measuring device |
| CN110936230B (en) * | 2019-12-18 | 2021-07-02 | 广西柳工机械股份有限公司 | Round hole center positioning device, round hole center line drawing and distance measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108709471A (en) | 2018-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107791398B (en) | A kind of spherical glass product perforating device | |
| CN207508714U (en) | The element floating support device adjusted with wedge mechanism | |
| CN108709471B (en) | Flexible circular arc center of circle positioning device | |
| CN103802065A (en) | Press fitting device and press fitting method for air spring piston | |
| CN208653331U (en) | Flexible circular arc center of circle positioning device | |
| CN207636402U (en) | Spring fatigue tester | |
| CN100467235C (en) | Line tool for circular arcs with same center of circles on large type round shaped parts | |
| CN207387622U (en) | A kind of original gauge length marker of adjustable spacing type tension test | |
| CN203951030U (en) | A kind of adjusting device of laser outgoing mirror | |
| CN203940810U (en) | A kind of bore circular arc ring groove apparatus for detecting diameter | |
| CN210255140U (en) | Positioning element of hydraulic structure | |
| CN217637146U (en) | Hydraulic cylinder body circular hole inner diameter cylindricity measuring device | |
| CN109974560B (en) | Hole core positioning device | |
| CN208132454U (en) | The outer adjustable type drill positioning device of cylindrical workpiece | |
| CN202763105U (en) | Self-positioning clamping device | |
| CN105269373A (en) | Spring clamp mechanism | |
| US2654157A (en) | Bore gauge | |
| CN107877420A (en) | Elastic taper pin positioning mechanism | |
| CN205289762U (en) | A live center for processing axle type work piece | |
| CN209745200U (en) | Hole center positioning device | |
| CN210441775U (en) | Position degree detection device | |
| CN208918570U (en) | Axis force of anchor instrument | |
| CN202399004U (en) | Precise combined press-fitting device | |
| CN208366205U (en) | A kind of cubing for the big instrument bezel of automobile | |
| CN207682369U (en) | A kind of large-scale workpiece gauge marking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |