CN106563975B - A kind of high position precision measuring device of rotary table - Google Patents
A kind of high position precision measuring device of rotary table Download PDFInfo
- Publication number
- CN106563975B CN106563975B CN201610544274.6A CN201610544274A CN106563975B CN 106563975 B CN106563975 B CN 106563975B CN 201610544274 A CN201610544274 A CN 201610544274A CN 106563975 B CN106563975 B CN 106563975B
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- mounting base
- reading head
- rotary table
- circular gratings
- snap ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2428—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring existing positions of tools or workpieces
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a kind of high position precision measuring devices of rotary table, including rotary table mounting seat, it further include Circular gratings mounting base, Circular gratings, reading head mounting base, reading head, bearing group, first gland, second gland, spacer and flexible clutch, the reading head mounting base is fixed in rotary table mounting seat, the Circular gratings mounting base is rotatably installed in reading head mounting base, its top extends radially outwardly to form the first snap ring, it extends radially inwardly to form second snap ring opposite with the first snap ring at the top of the reading head mounting base, the reading head is mounted on the top of reading head mounting base, the Circular gratings are mounted on the top of Circular gratings mounting base and face reading head, the bearing group is mounted between reading head mounting base and Circular gratings mounting base.The present invention solves the problems, such as that rotational positioning precision caused by Circular gratings and reading head axial relative movement is not high, substantially increases the positioning accuracy of rotary table operation.
Description
Technical field
The present invention relates to a kind of high position precision measuring devices of rotary table, belong to the measuring part of rotary table
Technical field.
Background technique
The NC rotary table of machine trouble industry generally uses bearing support structure or static pressure oil float structure.Static pressure oil float
The rotary table of structure has many advantages, such as that load-carrying is big, at low cost, rigidity is good, without abrasion, but the disadvantage is that: workpiece rotation is quiet
When pushing back the side of revolving worktable table top, the load of weighting can cause the inclination of table top, and table surface is the light with Circular gratings
Circle or reading head connection, the inclination of table surface make to generate relative displacement between Circular gratings and reading head, make rotary table
Positioning generate error, affect the positioning accuracy of static pressure rotary worktable.
Summary of the invention
The present invention provides a kind of time that can solve workpiece and deviate rotary table to overcome the shortcomings of the prior art
Turn the high position precision measuring device of the rotary table at center.
The invention is characterized in that following technical scheme is achieved:
A kind of high position precision measuring device of rotary table, including rotary table mounting seat, further include round light
Grid mounting base, Circular gratings, reading head mounting base, reading head, bearing group, the first gland, the second gland, spacer and flexible coupling
Device, the reading head mounting base are fixed in rotary table mounting seat, and the Circular gratings mounting base is rotatably installed in reading
In head mounting base, top extends radially outwardly to form the first snap ring, extends radially inwardly at the top of the reading head mounting base
Second snap ring opposite with the first snap ring is formed, the reading head is mounted on the top of reading head mounting base, the Circular gratings peace
Mounted in Circular gratings mounting base top and face reading head, the bearing group be mounted on reading head mounting base and Circular gratings installation
Between seat, the bottom of the first snap ring and the bottom of the second snap ring, the spacer installation are pressed at the top of the bearing of the top
Between two adjacent bearings of bearing group, first gland is fixed on the bottom of reading head mounting base and compresses bearing group
The bottom of the lowermost bearing, second gland are fixed on the bottom of Circular gratings mounting base and are pressed on the bottom of bearing group
Bearing bottom, the flexible clutch be mounted on the axle center at the top of Circular gratings mounting base and be rotatably installed in revolution work
Make the rotary table transmission connection in platform mounting seat.
Preferably, link block, the bottom of the flexible clutch are equipped at the axle center at the top of the Circular gratings mounting base
Portion is coaxially connected with link block, and top at connecting shaft and the axle center for the table top cover board for turning round workbench by connecting.
Preferably, the spacer includes outer separator and inner spacing collar, and the outer separator and inner spacing collar are mounted on from outside to inside
Between reading head mounting base and Circular gratings mounting base.
Compared with prior art, the beneficial effects of the present invention are: reading head mounting base is fixed on revolution work by the present invention
Make in platform mounting seat, Circular gratings mounting base is rotatably installed in reading head mounting base, reading head is installed using bearing group
It is axially and radially limited with Circular gratings mounting base, makes that relative rotary motion only occurs between the two, utilize flexible clutch
So that Circular gratings mounting base and rotary table is sequentially connected, makes rotary table in the case where work deviates table top center, work
Part rotational energy, which synchronizes, to be transmitted in Circular gratings mounting base, and opposite reading between reading head and Circular gratings is made not inclined by rotary table
It tiltedly influences, solves the problems, such as that rotational positioning precision caused by Circular gratings and reading head axial relative movement is not high, greatly improve
The positioning accuracy of rotary table operation, guarantees the accurate use of rotary table.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the high position precision measuring device of rotary table of the invention；
Fig. 2 is centre bit of the workpiece in rotary table of the high position precision measuring device of rotary table of the invention
State diagram when setting；
The workpiece of the high position precision measuring device of rotary table Fig. 3 of the invention deviates the centre bit of rotary table
State diagram when setting.
Specific embodiment
A specific embodiment of the invention is described in detail below in conjunction with attached drawing.
As shown in Figure 1, the high position precision measuring device of rotary table of the invention includes rotary table installation bottom
Seat 1, Circular gratings mounting base 2, Circular gratings 3, reading head mounting base 4, reading head 5, bearing group, the first gland 6, the second gland 7, every
Set and flexible clutch 8.
Rotary table mounting seat 1 is equipped with hollow boss 9, and 10 turning set of rotary table is in the outside of boss 9
On.It is set between rotary table 10 and boss 9 there are two bearing 11,12,13 and of outer separator is installed between two bearings 11,12
Inner spacing collar 14 is equipped between the bottom and rotary table mounting seat 1 of bearing 12 and supports spacer, the top of the lateral wall of boss 9
Tooth abdomen lock nut is equipped between portion and the top of bearing 11.In this way, rotary table 10 located in the axial direction.It returns
Revolving worktable 10, which is located at the center of the top of boss 9, is equipped with work-table surface cover 17, which passes through
Screw 34 is fixed on rotary table 10.There is the protective cover 33 being fixed thereon by screw 32 on work-table surface cover 17.
It is equipped with static pressure suspension face 18 between the bottom and rotary table mounting seat 1 of rotary table 10, works as static pressure rotary worktable
When not rotating, rotary table 10 is directly born against in rotary table mounting seat 1, and static pressure suspension face 18 between the two does not have
Fill oil film；When static pressure rotary worktable rotation, static pressure suspension face 18 has pressure film filling, keeps rotary table 10 micro-
Micro suspension is got up, and is not contacted directly with rotary table mounting seat 1, frictional resistance pole when this turns round rotary table 10
It is small, with hydraulic principle is utilized, there is very big bearing capacity.
Reading head mounting base 4 is on the inner wall of boss 9 and fixed by screw 19, makes reading head mounting base 4 and boss 9 not
It can relatively move.Circular gratings mounting base 2 is rotatably installed in vertically in reading head mounting base 4, and phase can occur between the two
To rotary motion.The top of Circular gratings mounting base 2 extends radially outwardly to form the first snap ring 20, the top of reading head mounting base 4
It extends radially inwardly to form the second snap ring 21, the bottom of the bottom of the first snap ring 20 and the second snap ring 21 maintains an equal level.Reading head 5 is fixed
At the top of reading head mounting base 4, Circular gratings 3 by screw 31 be mounted on Circular gratings mounting base 2 top and with 5 phase of reading head
It is right, facilitate reading head 5 to read the calibration data on Circular gratings 3.Circular gratings 3 are annular in shape, are coaxial with Circular gratings mounting base 2
What the heart was fixed, in rotation, opposite deviate would not occur Circular gratings 3 for the reading of reading head 5.Bearing group is mounted on reading head installation
Between seat 4 and Circular gratings mounting base 2, bearing group includes first bearing 22 and second bearing 23, and the top of first bearing 22 compresses
In the bottom of the first snap ring 20 and the bottom of the second snap ring 21.Spacer is mounted between first bearing 22 and second bearing 23,
Can be made of outer separator 24 and inner spacing collar 25, outer separator 24 and inner spacing collar 25 be mounted on from outside to inside reading head mounting base 4 with
Between Circular gratings mounting base 2.First gland 6 is fixed on the bottom of reading head mounting base 4 and compresses bearing group by screw 29
The bottom of second bearing 23, the second gland 7 are fixed on the bottom of Circular gratings mounting base 2 and are pressed on bearing group by screw 30
The bottom of second bearing 23.Since reading head mounting base 4 is fixed in rotary table mounting seat 1, Circular gratings installation
Seat 2 is then by the first gland 6, the second gland 7, second bearing 23, outer separator 24, inner spacing collar 25, first bearing 22, the first snap ring 20
It is limited with the second snap ring 21, makes that axial direction cannot occur between Circular gratings mounting base 2 and reading head mounting base 4, moves radially,
Opposite movement can only be rotated, this makes to be mounted in reading head mounting base 4 reading head 5 and is mounted on Circular gratings mounting base 2
On Circular gratings 3 relative rotary motion can only occur, reading head 5 will not shift with Circular gratings 3.The bottom of flexible clutch 8
Portion is coaxially mounted to the top of Circular gratings mounting base 2, and top passes sequentially through connecting shaft 26, connecting plate 27 and work-table cover
It is fixedly connected at the center of plate 17, rotary table 10 will drive Circular gratings mounting base 2 at 4 turns of reading head mounting base when rotating
It is dynamic, rotate synchronously the workpiece on Circular gratings 3 and work-table surface cover 17 in Circular gratings mounting base 2.
Bearing group of the invention can use two bearings or multiple bearing arrangements, according to multiple bearings, then by upper end
Bearing at the top of be pressed on the bottom surface of the first snap ring and the bottom surface of the second snap ring, the first gland and the second gland are pressed on most lower
The bottom of the bearing at end passes through spacer between two neighboring bearing and supports.
Link block 28, the bottom of the flexible clutch 8 are equipped at the axle center at the top of Circular gratings mounting base 2 of the invention
Coaxially connected with link block 28, top at connecting shaft 26, connecting plate 27 and the axle center of work-table surface cover 17 by connecting.
As shown in Fig. 2, when 10 zero load of rotary table or contained workpiece center of gravity are pressed in the revolution of work-table surface cover 17
When at center, the center of gravity of rotary table 10 is on its centre of gyration, rotary table 10 and rotary table mounting seat 1
Between the uniform force everywhere of static pressure suspension face 18, oil film filling thickness is uniform, and rotary table 10 and rotary table are installed
The contact surface of pedestal 1 is parallel, at this point, the radial distance between reading head 5 and Circular gratings 3 is constant, axial distance is constant, makes round light
The data that grid 3 and reading head 5 measure are that accurately, positioning is also to prepare.
As shown in figure 3, working as, rotary table 10 is loaded with workpiece rotation and workpiece center of gravity is not in work-table surface cover 17
When at the centre of gyration, rotary table 10 and workpiece then can be considered an entirety, the deviation of gravity center centre of gyration, as workpiece weight
For the heart at which side, which side the center of gravity of rotary table and workpiece can deviate from.State shown in Fig. 3 be workpiece center of gravity on the right, this
When, the gravity being subject on the right of the centre of gyration is big compared with the left side, when rotary table 10 is not rotated when the filling of static pressure suspension face 18,
The pressure of the right oil film can be bigger than the pressure of the oil film on the left side, and rotary table 10 is to the micro inclination in the right, i.e. rotary table
It is lower than the left side on the right of 10 table top, and rotary table mounting seat 1 is fixed on lathe, not will receive rotary table
Influence.At this point, the synchronous rotary of Circular gratings mounting base 2 and rotary table 10 is completed by flexible clutch 8, by
There is certain elasticity in flexible clutch 8, even if rotary table table top cover board 17 is tilted, flexible clutch 8 occurs
Certain deformation also still can preparatively rotate with rotary table 10 and Circular gratings mounting base 2 be driven to rotate, and Circular gratings 3 are
It is mounted in Circular gratings mounting base 2, by first bearing 22 and second between Circular gratings mounting base 2 and reading head mounting base 4
The axially and radially limit of bearing 23, only relative rotary motion between the two, even if being pressurized transmission situation in flexible clutch 8
Under, Circular gratings mounting base 2 is limited to first bearing relative to the concentricity of reading head mounting base 4, circle bounce and axial jump
22 and second bearing 23 installation clearance and Circular gratings mounting base 2, the precision prescribed of reading head mounting base 4 within, i.e. Circular gratings 3
The installation trip of first bearing 22 and second bearing 23 is limited to relative to the concentricity of reading head 5, circle bounce and axial jump
Within gap and Circular gratings mounting base 2, the precision prescribed of reading head mounting base 4, Circular gratings 3 and reading head 5 can work normally not by
A small amount of inclined influences of rotary table 10 ensure that the positioning accuracy that rotary table 10 is run.
Above it is the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the present invention can have various changes and variation.Any modification for all within the spirits and principles of the present invention, being made,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of high position precision measuring device of rotary table, including rotary table mounting seat, it is characterised in that also
Including Circular gratings mounting base, Circular gratings, reading head mounting base, reading head, bearing group, the first gland, the second gland, spacer and soft
Property shaft coupling, the reading head mounting base is fixed in rotary table mounting seat, the Circular gratings mounting base rotational installation
In reading head mounting base, top extends radially outwardly to form the first snap ring, the top of the reading head mounting base it is radial to
Second snap ring opposite with the first snap ring is inside extended to form, the reading head is mounted on the top of reading head mounting base, the circle
Grating is mounted on the top of Circular gratings mounting base and faces reading head, and the bearing group is mounted on reading head mounting base and circle light
Between grid mounting base, be pressed on the bottom of the first snap ring and the bottom of the second snap ring at the top of the bearing of the top, it is described every
Set is mounted between two adjacent bearings of bearing group, and first gland is fixed on the bottom of reading head mounting base and compression axis
The bottom of the lowermost bearing of group is held, second gland is fixed on the bottom of Circular gratings mounting base and is pressed on bearing group
The bottom of the lowermost bearing, the flexible clutch be mounted on the axle center at the top of Circular gratings mounting base and be rotatably installed in
Rotary table transmission connection in rotary table mounting seat.
2. the high position precision measuring device of rotary table according to claim 1, it is characterised in that the Circular gratings
Link block is equipped at the axle center at the top of mounting base, the bottom of the flexible clutch and link block are coaxially connected, and top is logical
It crosses at connecting shaft and the axle center for the table top cover board for turning round workbench and connect.
3. the high position precision measuring device of rotary table according to claim 1 or 2, it is characterised in that the spacer
Including outer separator and inner spacing collar, the outer separator and inner spacing collar are mounted on reading head mounting base and Circular gratings mounting base from outside to inside
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544274.6A CN106563975B (en) | 2016-07-08 | 2016-07-08 | A kind of high position precision measuring device of rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544274.6A CN106563975B (en) | 2016-07-08 | 2016-07-08 | A kind of high position precision measuring device of rotary table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106563975A CN106563975A (en) | 2017-04-19 |
| CN106563975B true CN106563975B (en) | 2019-01-25 |
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ID=58532210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610544274.6A Active CN106563975B (en) | 2016-07-08 | 2016-07-08 | A kind of high position precision measuring device of rotary table |
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| Country | Link |
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| CN (1) | CN106563975B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612411B (en) * | 2019-02-18 | 2024-06-21 | 重庆建设工业(集团)有限责任公司 | Quick installation adjustment mechanism of open double-reading-head circular grating system |
| CN115464424B (en) * | 2022-10-31 | 2023-03-24 | 沈阳马卡智工科技有限公司 | Five machining center rotary worktable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH695260A5 (en) * | 2001-08-22 | 2006-02-28 | Studer Ag Fritz | Revolving finishing machine. |
| CN101081482A (en) * | 2007-06-29 | 2007-12-05 | 成都工具研究所 | Positioning accuracy quick measuring mechanism of numerically controlled revolving dial |
| TW201219149A (en) * | 2010-11-02 | 2012-05-16 | Weibo Prec Co Ltd | Rotary hydrostatic bearing working table |
| CN104741973A (en) * | 2015-04-15 | 2015-07-01 | 吉林大学珠海学院 | Grating ruler |
| CN104999284A (en) * | 2015-08-21 | 2015-10-28 | 烟台三维机床制造有限公司 | Heavy load straight tooth transmission full-closed loop high precision rotating table |
| CN105215692A (en) * | 2015-11-09 | 2016-01-06 | 深圳市金汇丰精密机械有限公司 | One can bear eccentric load static pressure rotary worktable and method of controlling rotation thereof |
| CN206169773U (en) * | 2016-07-08 | 2017-05-17 | 环球工业机械（东莞）有限公司 | Rotary worktable's high positioning accuracy measuring device |
-
2016
- 2016-07-08 CN CN201610544274.6A patent/CN106563975B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH695260A5 (en) * | 2001-08-22 | 2006-02-28 | Studer Ag Fritz | Revolving finishing machine. |
| CN101081482A (en) * | 2007-06-29 | 2007-12-05 | 成都工具研究所 | Positioning accuracy quick measuring mechanism of numerically controlled revolving dial |
| TW201219149A (en) * | 2010-11-02 | 2012-05-16 | Weibo Prec Co Ltd | Rotary hydrostatic bearing working table |
| CN104741973A (en) * | 2015-04-15 | 2015-07-01 | 吉林大学珠海学院 | Grating ruler |
| CN104999284A (en) * | 2015-08-21 | 2015-10-28 | 烟台三维机床制造有限公司 | Heavy load straight tooth transmission full-closed loop high precision rotating table |
| CN105215692A (en) * | 2015-11-09 | 2016-01-06 | 深圳市金汇丰精密机械有限公司 | One can bear eccentric load static pressure rotary worktable and method of controlling rotation thereof |
| CN206169773U (en) * | 2016-07-08 | 2017-05-17 | 环球工业机械（东莞）有限公司 | Rotary worktable's high positioning accuracy measuring device |
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| Publication number | Publication date |
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| CN106563975A (en) | 2017-04-19 |
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Denomination of invention: A high positioning accuracy measuring device for rotary table Effective date of registration: 20201224 Granted publication date: 20190125 Pledgee: China Co. truction Bank Corp Dongguan branch Pledgor: Global industrial machinery (Dongguan) Co.,Ltd. Registration number: Y2020980009933 |