CN111006001A - Floating aligning device for on-line precision measurement - Google Patents
Floating aligning device for on-line precision measurement Download PDFInfo
- Publication number
- CN111006001A CN111006001A CN201911112577.0A CN201911112577A CN111006001A CN 111006001 A CN111006001 A CN 111006001A CN 201911112577 A CN201911112577 A CN 201911112577A CN 111006001 A CN111006001 A CN 111006001A
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- shell
- ball bearing
- thrust ball
- floating
- shaft
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- 238000005259 measurement Methods 0.000 title claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a floating aligning device for online precision measurement, which comprises: the device comprises a floating shaft, a shell, a first thrust ball bearing, a second thrust ball bearing and a hollow shaft; the left end of the shell is provided with a shaft hole, one end of the floating shaft penetrates through the shaft hole at the left end of the shell, and a gap is reserved between the floating shaft and the wall of the shaft hole at the left end of the shell; the peripheral surface of the floating shaft is provided with an inner step; the inner step is positioned in the shell; the first thrust ball bearing and the second thrust ball bearing are positioned in the shell and are arranged on two sides of the inner step of the floating shaft; the inner side ring of the first thrust ball bearing and the inner side ring of the second thrust ball bearing are respectively clung to the left side surface and the right side surface of the inner step of the floating shaft; gaps are reserved between the inner side ring of the first thrust ball bearing and the inner side ring of the second thrust ball bearing and the inner wall of the shell respectively; a plurality of pin holes are formed in the shell along the circumferential direction of the shell, and elastic pins are installed in the pin holes; the invention has simple structure and low cost.
Description
Technical Field
The invention relates to the field of online measurement, in particular to a floating aligning device for online precision measurement.
Background
The development of production automation technology puts higher requirements on an on-line precision measurement technology, and not only needs to finish positioning a workpiece to be measured in a short time, but also needs to accurately convey a measuring head to the inside of a hole of the workpiece to be measured.
The existing floating aligning device can only finish floating aligning at a specific angle, and has the defects of complex structure, large volume and inconvenience for matching installation with a measuring head and an on-line measuring machine.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the floating aligning device for online precision measurement, which has the advantages of simple structure, no need of any hydraulic or electric device, low cost and greatly improved adaptability of the online precision measuring head. The technical scheme adopted by the invention is as follows:
a floating aligning device for on-line precision measurement, comprising: the device comprises a floating shaft, a shell, a first thrust ball bearing, a second thrust ball bearing and a hollow shaft;
the left end of the shell is provided with a shaft hole, one end of the floating shaft penetrates through the shaft hole at the left end of the shell, and a gap is reserved between the floating shaft and the wall of the shaft hole at the left end of the shell;
the peripheral surface of the floating shaft is provided with an inner step; the inner step is positioned in the shell; the first thrust ball bearing and the second thrust ball bearing are positioned in the shell and are arranged on two sides of the inner step of the floating shaft; the inner side ring of the first thrust ball bearing and the inner side ring of the second thrust ball bearing are respectively clung to the left side surface and the right side surface of the inner step of the floating shaft;
the diameter of the inner ring of the first thrust ball bearing is smaller than that of the outer ring thereof, and the diameter of the inner ring of the second thrust ball bearing is smaller than that of the outer ring thereof; gaps are reserved between the inner side ring of the first thrust ball bearing and the inner side ring of the second thrust ball bearing and the inner wall of the shell respectively;
a plurality of pin holes are formed in the shell along the circumferential direction of the shell, and elastic pins are installed in the pin holes; each elastic pin respectively props against the peripheral surface of the floating shaft body and the peripheral surface of an inner step of the floating shaft in the shell;
the shell is also provided with an anti-falling part; the anti-drop piece penetrates into an anti-drop hole arranged on the inner step of the floating shaft; and a gap is reserved between the anti-drop piece and the inner wall of the anti-drop hole.
Further, the anti-dropping part adopts a screw or a pin.
Further, the right end of the shell is connected with a hollow shaft.
The invention has the advantages that:
1) simple structure and low cost.
2) The floating shaft may float in any radial direction relative to the housing.
Drawings
FIG. 1 is an angled cross-sectional view of the present invention.
Fig. 2 is a cross-sectional view of another angle of the present invention.
Detailed Description
The invention is further illustrated by the following specific figures and examples.
As shown in fig. 1 and fig. 2, the present invention provides a floating aligning apparatus for on-line precision measurement, which includes: the device comprises a floating shaft 1, a shell 2, a first thrust ball bearing 3, a second thrust ball bearing 4 and a hollow shaft 5;
the left end of the shell 2 is provided with a shaft hole, one end of the floating shaft 1 penetrates through the shaft hole at the left end of the shell 2, and a gap is reserved between the floating shaft and the wall of the shaft hole at the left end of the shell 2;
the peripheral surface of the floating shaft 1 is provided with an inner step 101; the inner step 101 is located within the housing 2; the first thrust ball bearing 3 and the second thrust ball bearing 4 are positioned in the shell 2 and are arranged on two sides of the inner step 101 of the floating shaft 1; the inner ring of the first thrust ball bearing 3 and the inner ring of the second thrust ball bearing 4 are respectively clung to the left side surface and the right side surface of the inner step 101 of the floating shaft 1;
the diameter of the inner ring of the first thrust ball bearing 3 is smaller than that of the outer ring thereof, and the diameter of the inner ring of the second thrust ball bearing 4 is smaller than that of the outer ring thereof; gaps are reserved between the inner ring of the first thrust ball bearing 3 and the inner ring of the second thrust ball bearing 4 and the inner wall of the shell 2 respectively;
a plurality of pin holes 201 are formed in the housing 2 along the circumferential direction thereof, and elastic pins are installed in the pin holes 201; each elastic pin respectively supports against the peripheral surface of the body of the floating shaft 1 and the peripheral surface of an inner step 101 of the floating shaft 1 in the shell 2;
the shell 2 is also provided with an anti-falling part 6; the anti-drop piece 6 penetrates into an anti-drop hole 102 arranged on an inner step 101 of the floating shaft; a gap is reserved between the anti-falling piece 6 and the inner wall of the anti-falling hole 102; the anti-release piece 6 can be a screw, a bolt, a pin and the like and is used for limiting the axial movement of the floating shaft 1;
the right end of the shell 2 is connected with a hollow shaft 5; the hollow shaft 5 and the right end of the shell 2 can be connected through threads;
the hollow shaft 5 is used for connecting a switching shaft and is connected with a measuring head through the switching shaft;
the floating shaft 1 in the present invention can float in any radial direction with respect to the housing 2; when floating occurs, the elastic pin on the side surface is pressed to generate elastic force, so that the measuring floating shaft 1 is aligned.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (3)
1. A floating aligning apparatus for on-line precision measurement, comprising: the device comprises a floating shaft (1), a shell (2), a first thrust ball bearing (3), a second thrust ball bearing (4) and a hollow shaft (5);
a shaft hole is formed in the left end of the shell (2), one end of the floating shaft (1) penetrates through the shaft hole in the left end of the shell (2), and a gap is reserved between the floating shaft and the wall of the shaft hole in the left end of the shell (2);
the peripheral surface of the floating shaft (1) is provided with an inner step (101); the inner step (101) is positioned in the shell (2); the first thrust ball bearing (3) and the second thrust ball bearing (4) are positioned in the shell (2) and are arranged on two sides of the inner step (101) of the floating shaft (1); the inner side ring of the first thrust ball bearing (3) and the inner side ring of the second thrust ball bearing (4) are respectively clung to the left side surface and the right side surface of the inner step (101) of the floating shaft (1);
the diameter of the inner ring of the first thrust ball bearing (3) is smaller than that of the outer ring thereof, and the diameter of the inner ring of the second thrust ball bearing (4) is smaller than that of the outer ring thereof; gaps are reserved between the inner ring of the first thrust ball bearing (3) and the inner ring of the second thrust ball bearing (4) and the inner wall of the shell (2) respectively;
a plurality of pin holes (201) are formed in the shell (2) along the circumferential direction of the shell, and elastic pins are installed in the pin holes (201); each elastic pin respectively props against the peripheral surface of the body of the floating shaft (1) and the peripheral surface of an inner step (101) of the floating shaft (1) in the shell (2);
the shell (2) is also provided with an anti-falling part (6); the anti-drop piece (6) penetrates into an anti-drop hole (102) arranged on an inner step (101) of the floating shaft; and a gap is reserved between the anti-falling piece (6) and the inner wall of the anti-falling hole (102).
2. The floating return-to-center device for on-line precision measurements according to claim 1,
the anti-falling part (6) adopts a screw or a pin.
3. The floating return-to-center device for on-line precision measurements according to claim 1,
the right end of the shell (2) is connected with a hollow shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112577.0A CN111006001B (en) | 2019-11-14 | 2019-11-14 | Floating aligning device for online precise measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112577.0A CN111006001B (en) | 2019-11-14 | 2019-11-14 | Floating aligning device for online precise measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111006001A true CN111006001A (en) | 2020-04-14 |
| CN111006001B CN111006001B (en) | 2024-08-27 |
Family
ID=70113351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911112577.0A Active CN111006001B (en) | 2019-11-14 | 2019-11-14 | Floating aligning device for online precise measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111006001B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190857Y (en) * | 2008-04-25 | 2009-02-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Rotary joint |
| CN106546431A (en) * | 2015-09-17 | 2017-03-29 | 内蒙航天动力机械测试所 | Solid propellant rocket rotation test in-situ calibration system switching device |
| JP2019007509A (en) * | 2017-06-21 | 2019-01-17 | Ntn株式会社 | Spindle device |
| CN211343942U (en) * | 2019-11-14 | 2020-08-25 | 无锡富瑞德测控仪器股份有限公司 | Floating aligning device for on-line precision measurement |
-
2019
- 2019-11-14 CN CN201911112577.0A patent/CN111006001B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190857Y (en) * | 2008-04-25 | 2009-02-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Rotary joint |
| CN106546431A (en) * | 2015-09-17 | 2017-03-29 | 内蒙航天动力机械测试所 | Solid propellant rocket rotation test in-situ calibration system switching device |
| JP2019007509A (en) * | 2017-06-21 | 2019-01-17 | Ntn株式会社 | Spindle device |
| CN211343942U (en) * | 2019-11-14 | 2020-08-25 | 无锡富瑞德测控仪器股份有限公司 | Floating aligning device for on-line precision measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111006001B (en) | 2024-08-27 |
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