CN111006001B - Floating aligning device for online precise measurement - Google Patents
Floating aligning device for online precise measurement Download PDFInfo
- Publication number
- CN111006001B CN111006001B CN201911112577.0A CN201911112577A CN111006001B CN 111006001 B CN111006001 B CN 111006001B CN 201911112577 A CN201911112577 A CN 201911112577A CN 111006001 B CN111006001 B CN 111006001B
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- China
- Prior art keywords
- shell
- ball bearing
- thrust ball
- shaft
- floating
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- 238000005259 measurement Methods 0.000 title claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- 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 precise 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 out of the shaft hole at the left end of the shell, and a gap is reserved between the floating shaft and the hole 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 step in the floating shaft; the inner ring of the first thrust ball bearing and the inner 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 inner ring of the first thrust ball bearing and the inner ring of the second thrust ball bearing are respectively provided with a gap with the inner wall of the shell; the shell is provided with a plurality of stud holes along the circumferential direction, and elastic studs are arranged in the stud 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 centering device for online precise measurement.
Background
The development of the production automation technology has put higher requirements on the online precise measurement technology, and not only the positioning of the workpiece to be measured is completed in a short time, but also the measuring head is required to be accurately sent into the hole of the workpiece to be measured.
The existing floating centering device can only finish floating centering at a specific angle, has a complex structure and large volume, and is inconvenient to install in cooperation with a measuring head and an online measuring machine.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the floating centering device for the online precise 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 precise measurement head. The technical scheme adopted by the invention is as follows:
A floating alignment 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 out of the shaft hole at the left end of the shell, and a gap is reserved between the floating shaft and the hole 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 step in the floating shaft; the inner ring of the first thrust ball bearing and the inner 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 of the first thrust ball bearing, and the diameter of the inner ring of the second thrust ball bearing is smaller than that of the outer ring of the second thrust ball bearing; the inner ring of the first thrust ball bearing and the inner ring of the second thrust ball bearing are respectively provided with a gap with the inner wall of the shell;
The shell is provided with a plurality of stud holes along the circumferential direction, and elastic studs are arranged in the stud holes; each elastic pin is respectively propped against the circumferential surface of the floating shaft body and the circumferential surface of the inner step of the floating shaft in the shell;
the shell is also provided with an anti-falling piece; the anti-falling piece penetrates into an anti-falling hole arranged on the step in the floating shaft; and a gap is reserved between the anti-falling piece and the inner wall of the anti-falling hole.
Further, the anti-falling piece 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 can float in any radial direction relative to the housing.
Drawings
Fig. 1 is a cross-sectional view of an angle of the present invention.
Fig. 2 is another angular cross-sectional view of the present invention.
Detailed Description
The invention will be further described with reference to the following specific drawings and examples.
As shown in fig. 1 and 2, the floating centering device for online precise measurement provided by the invention comprises: 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 out of the shaft hole at the left end of the shell 2, and a gap is reserved between the floating shaft 1 and the hole wall of the shaft hole at the left end of the shell 2;
An inner step 101 is arranged on the peripheral surface of the floating shaft 1; 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 at two sides of the step 101 in 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 step 101 in 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 of the first thrust ball bearing, and the diameter of the inner ring of the second thrust ball bearing 4 is smaller than that of the outer ring of the second thrust ball bearing; 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;
The shell 2 is provided with a plurality of stud holes 201 along the circumferential direction, and elastic studs are arranged in each stud hole 201; each elastic pin respectively props against the circumferential surface of the body of the floating shaft 1 and the circumferential surface of the inner step 101 of the floating shaft 1 in the shell 2;
The shell 2 is also provided with an anti-falling piece 6; the anti-falling piece 6 penetrates into an anti-falling hole 102 arranged on the 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-falling member 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 is connected with the right end of the shell 2 through threads;
The hollow shaft 5 is used for connecting the switching shaft and is connected with the measuring head through the switching shaft;
the floating shaft 1 in the invention can float in any radial direction relative to the shell 2; when floating occurs, the elastic pins on the side face are pressed to generate elastic force, so that the measuring floating shaft 1 is reset.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, 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 and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (3)
1. A floating alignment device 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);
the left end of the shell (2) is provided with a shaft hole, one end of the floating shaft (1) penetrates out of the shaft hole at the left end of the shell (2), and a gap is reserved between the floating shaft and the hole wall of the shaft hole at the left end of the shell (2);
An inner step (101) is arranged on the peripheral surface of the floating shaft (1); 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 at 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 of the first thrust ball bearing, and the diameter of the inner ring of the second thrust ball bearing (4) is smaller than that of the outer ring of the second thrust ball bearing; the inner ring of the first thrust ball bearing (3) and the inner ring of the second thrust ball bearing (4) are respectively spaced from the inner wall of the shell (2);
A plurality of stud holes (201) are formed in the shell (2) along the circumferential direction of the shell, and elastic studs are arranged in the stud holes (201); the elastic pins respectively prop against the circumferential surface of the body of the floating shaft (1) and the circumferential 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 piece (6); the anti-falling piece (6) penetrates into an anti-falling hole (102) arranged on the 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. A floating alignment device for on-line precision measurement as set forth in claim 1, wherein,
The anti-falling piece (6) adopts a screw or a pin.
3. A floating alignment device for on-line precision measurement as set forth in claim 1, wherein,
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 CN111006001A (en) | 2020-04-14 |
| CN111006001B true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (3)
| 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 |
| CN106546431B (en) * | 2015-09-17 | 2018-12-14 | 内蒙航天动力机械测试所 | Solid propellant rocket rotation test in-situ calibration system switching device |
| JP6968586B2 (en) * | 2017-06-21 | 2021-11-17 | Ntn株式会社 | Spindle device and painting device |
-
2019
- 2019-11-14 CN CN201911112577.0A patent/CN111006001B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN111006001A (en) | 2020-04-14 |
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