CN101788282B - Aligning and leveling worktable for measuring cylindricity of slewing type workpiece - Google Patents
Aligning and leveling worktable for measuring cylindricity of slewing type workpiece Download PDFInfo
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- CN101788282B CN101788282B CN2010101151119A CN201010115111A CN101788282B CN 101788282 B CN101788282 B CN 101788282B CN 2010101151119 A CN2010101151119 A CN 2010101151119A CN 201010115111 A CN201010115111 A CN 201010115111A CN 101788282 B CN101788282 B CN 101788282B
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Abstract
The invention provides an aligning and leveling worktable for measuring the cylindricity of a slewing type workpiece. The aligning and leveling worktable is composed of an aligning knob (1), an aligning supporting seat (2), an aligning sliding block (3), an aligning tension spring (4), an aligning fixed supporting seat (5), a bearing (6), an outer cover (7), a fixed steel ball (8), leveling knobs(9), a leveling knob supporting seat (10), an inclined block (11), a leveling tension spring (12), leveling steel balls (13), a leveling fixed supporting seat (14), a connecting ring (15), a base (16), a worktable (17) and a vertical tension spring (18). The leveling steel balls are movable supporting points, and the fixed steel ball is a fixed supporting point. The two leveling knobs are adjusted to lead the worktable to realize the leveling function under the support of the two leveling steel balls and the fixed steel ball. When the aligning knob is adjusted, the connecting ring drives the worktable to precisely move along two vertical directions under the action of the aligning tension spring so as to realize the aligning function of the worktable. The structure of the aligning and leveling worktable is simple and practical.
Description
Technical field
The invention belongs to field of measuring technique, refer more particularly to a kind of aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece.
Background technology
The machinery industry has realized feeding technology and the 0.005 μ m machining precision of 0.001 μ m,, require detection technique to adapt with it, exploitation high precision cylinder degree measuring instrument satisfies the requirement of advanced manufacturing technology, has great social significance.
The adjustment worktable of the cylindricity measuring instrument employing on the domestic and international market has two kinds at present: electronic automatic adjustment and manual adjustment.Have only Britain Tyler Corporations to adopt electronic automatic adjustment mode in the world at present, adjust easyly, automaticity is high, but complex structure, and the Installation and Debugging trouble is keeped in repair loaded down with trivial detailsly, and cost is very high, is not suitable for the home market.Domestic general employing manual adjustment worktable, but the adjustment worktable that adopts on the present home market is designed to double-layer structure with leveling and aligning, weight and highly all bigger, the influence to measurement result when carrying out cylindricity measurement is bigger.
Summary of the invention
For solving the weak point of prior art; The invention provides a kind of aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece; Use this aligning and leveling worktable not only to realize to carry out aligning and leveling work simultaneously in the rotary type workpiece list cross section; And shortened the height of aligning and leveling worktable, thereby the corresponding measuring height of rotary type workpiece when having shortened cylindricity measurement has improved the precision of measuring.
In order to realize the foregoing invention purpose, the present invention adopts following technical scheme:
The described aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece mainly is made up of aligning device, outer cover, stationary balls, levelling device, coupling ring, base, worktable and vertical back-moving spring; Described levelling device and aligning device respectively have two; Two levelling devices and two aligning devices all connect with base and along the balanced configuration of center line; Two levelling devices are 90 ° of angle disposed adjacent, and two aligning devices are 90 ° of angle disposed adjacent; In two levelling devices, respectively be provided with a leveling steel ball fulcrum; Two adjacent aligning devices to angular bisector on a stationary balls fulcrum is set; The common support that constitutes the worktable bottom surface contacts two leveling steel ball fulcrums with a stationary balls fulcrum, and stationary balls connects with base; Coupling ring be fixed on the worktable bottom surface and with the balanced configuration of worktable center line; On coupling ring and base, respectively be provided with four step-like through holes that the installation site is identical; Be provided with vertical back-moving spring in each step-like through hole; The two ends of vertical back-moving spring hang on the pin; In two pins one is located in the step-like through hole of coupling ring and another is located in the step-like through hole of base, through four vertical back-moving springs the worktable tension is supported to contact in the coupling ring upper end and with two leveling steel ball fulcrums and a stationary balls fulcrum; Two sides that aligning back-moving spring in each aligning device hangs over coupling ring make the two cover bearings that dispose in the aligning device and the contacts side surfaces of coupling ring; Outer cover is the shape of falling the concave ring groove; Outer cover fall concave ring groove internal diameter and base the external diameter coupling and be stuck on the base; The external diameter of outer cover equates with the external diameter of worktable; To the vertical height of stationary balls, the axial support height ring of outer cover is disposed radially the outer cover through hole of the even cloth of four symmetries to the axial support height of outer cover and base less than plane on the base, and described outer cover through hole is used for being provided with two leveling knob and aligning knobs in two aligning devices in the levelling device.
The described aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece; Aligning device is made up of aligning knob, aligning bearing, aligning slide block, aligning back-moving spring, aligning hold-down support and bearing; The center line of aligning bearing and aligning hold-down support is consistent and through screw aligning bearing and aligning hold-down support is installed on the base; The stepped external thread axle of the major axis that spins of aligning knob; Described stepped external thread axle has different pitch and different external diameters, and elder generation's screw-in aligning hold-down support connected with the aligning slide block again after the major axis that spins of aligning knob passed through the outer cover through hole, and the aligning slide block is seated in the gathering sill of aligning bearing; The spin vertical direction of long axis ray of relative aligning knob is equipped with two cover bearings arranged side by side in the end of aligning slide block; The cylindrical of two cover bearings exceeds the front end face of aligning slide block, through screw retention two aligning back-moving springs is arranged at the two ends of aligning slide block, and the other end of aligning back-moving spring hangs on the coupling ring side.
The described aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece; Levelling device is made up of leveling knob, leveling knob bearing, skewback, leveling back-moving spring, leveling steel ball and leveling hold-down support; The center line of leveling knob bearing and leveling hold-down support is consistent and through screw leveling knob bearing and leveling hold-down support is installed on the base, and the external thread axle of leveling knob screws in the leveling knob bearing after passing through the outer cover through hole, and the male threaded stub portion of leveling knob is the semisphere arc surface; Described semisphere arc surface withstands on the large end face of skewback; The skewback bottom surface is provided with positioning step, and skewback is seated in the gathering sill of leveling hold-down support, has and leveling steel ball size circular hole of the same size on leveling hold-down support top; The leveling steel ball is set in the described circular hole; Leveling steel ball bottom is dropped on the inclined-plane of skewback, and the large end face both sides of skewback hang with two leveling back-moving springs, and the other end of leveling back-moving spring passes through screw retention on leveling knob bearing.
Owing to adopted technical scheme as stated, the present invention has following superiority:
1, the present invention is provided with two aligning devices and two levelling devices, has realized carrying out simultaneously in single cross section aligning, the levelling function of worktable.
2, owing to shortened the adjustment height of worktable, thereby the corresponding measuring height of rotary type workpiece when having shortened cylindricity measurement has improved measuring accuracy.
3, because the stepped external thread axle of aligning knob has different pitch and different outer gauge structures, realized the fine adjustment function of aligning device.
4, aligning device and levelling device have simple and reasonablely, have effectively realized the adjustment function of rotary type workpiece four-degree-of-freedom.
Description of drawings
Fig. 1 is the structural representation after the present invention removes worktable.
Fig. 2 is that Fig. 1 adds the therefrom sectional drawing analysed and observe of heart line of upper table.
Among the above-mentioned figure: 1-aligning knob; 2-aligning bearing; 3-aligning slide block; 4-aligning back-moving spring; 5-aligning hold-down support; The 6-bearing; The 7-outer cover; The 8-stationary balls; 9-leveling knob; 10-leveling knob bearing; The 11-skewback; 12-leveling back-moving spring; 13-leveling steel ball; 14-leveling hold-down support; The 15-coupling ring; The 16-base; The 17-worktable; The vertical back-moving spring of 18-.
Embodiment
In conjunction with Fig. 1-2; The aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece of the present invention mainly is made up of aligning device, outer cover 7, stationary balls 8, levelling device, coupling ring 15, base 16, worktable 17 and vertical back-moving spring 18; Described levelling device and aligning device respectively have two; Two levelling devices and two aligning devices all connect with base 16 and along the balanced configuration of center line; Two levelling devices are 90 ° of angle disposed adjacent, and two aligning devices are 90 ° of angle disposed adjacent; In two levelling devices, respectively be provided with a leveling steel ball fulcrum; Two adjacent aligning devices to angular bisector on stationary balls 8 fulcrums are set; The common support that constitutes the worktable bottom surface contacts two leveling steel ball fulcrums with a stationary balls fulcrum, and stationary balls 8 connects with base 16; Coupling ring 15 be fixed on worktable 17 bottom surfaces and with the balanced configuration of worktable center line; On coupling ring 15 and base 16, respectively be provided with four step-like through holes that the installation site is identical; Be provided with vertical back-moving spring 18 in each step-like through hole; The two ends of vertical back-moving spring 18 hang on the pin; In two pins one is located in the step-like through hole of coupling ring 15 and another is located in the step-like through hole of base 16, through four vertical back-moving springs 18 worktable 17 tensions is supported to contact in coupling ring 15 upper ends and with two leveling steel ball fulcrums and a stationary balls fulcrum; Two sides that aligning back-moving spring in each aligning device hangs over coupling ring 15 make the two cover bearings that dispose in the aligning device and the contacts side surfaces of coupling ring; Outer cover 7 is the shape of falling the concave ring groove; Outer cover fall concave ring groove internal diameter and base 16 the external diameter coupling and be stuck on the base; The external diameter of outer cover 7 equates with the external diameter of worktable 17; The axial support height of outer cover 7 and base 16 is less than the vertical height of plane on the base to stationary balls 8, and the axial support height ring of outer cover is disposed radially the outer cover through hole of the even cloth of four symmetries, and described outer cover through hole is used for being provided with two leveling knob and aligning knobs in two aligning devices in the device.
Described aligning device is made up of aligning knob 1, aligning bearing 2, aligning slide block 3, aligning back-moving spring 4, aligning hold-down support 5 and bearing 6.The center line of aligning bearing 2 and aligning hold-down support 5 is consistent and through screw aligning bearing 2 and aligning hold-down support 5 is installed on the base 16; The stepped external thread axle of the major axis that spins of aligning knob 1; Described stepped external thread axle has different pitch and different external diameters; Elder generation's screw-in aligning hold-down support 5 connected with aligning slide block 3 again after the major axis that spins of aligning knob 1 passed through outer cover 7 through holes; Aligning slide block 3 is seated in the gathering sill of aligning bearing 2, and spin cylindrical that the vertical direction of long axis ray is equipped with two cover bearings, 6, two cover bearings 6 arranged side by side of relative aligning knob exceeds the front end face of aligning slide block 3 in the end of aligning slide block 3; There are two aligning back-moving springs 4 at two ends at aligning slide block 3 through screw retention, and the other end of aligning back-moving spring 4 hangs on coupling ring 15 sides.
Described levelling device is made up of leveling knob 9, leveling knob bearing 10, skewback 11, leveling back-moving spring 12, leveling steel ball 13 and leveling hold-down support 14.The center line of leveling knob bearing 10 and leveling hold-down support 14 is consistent and through screw leveling knob bearing 10 and leveling hold-down support 14 is installed on the base; The external thread axle of leveling knob 9 screws in the leveling knob bearing 10 after passing through outer cover 7 through holes; The male threaded stub portion of leveling knob 9 is the semisphere arc surface; Described semisphere arc surface withstands on the large end face of skewback 11; Skewback 11 bottom surfaces are provided with positioning step, and skewback 11 is seated in the gathering sill of leveling hold-down support 14, have on leveling hold-down support 14 tops and the consistent circular hole of leveling steel ball 13 diameter; Leveling steel ball 13 is set in the described circular hole; Leveling steel ball 13 bottoms are dropped on the inclined-plane of skewback 11, and the large end face both sides of skewback 11 hang with two leveling back-moving springs 12, and the other end of leveling back-moving spring 12 passes through screw retention on leveling knob bearing 10.
The present invention is an aligning and leveling worktable with four-degree-of-freedom, and described four-degree-of-freedom is realized through two aligning devices and two levelling devices respectively.In levelling device, leveling steel ball 13 is moving fulcrums, and stationary balls 8 is fixed pivots, adjusts two leveling knobs 9, the levelling function of worktable 17 realization worktable 17 under the support of two leveling steel balls 13 and stationary balls 8.The external diameter of stationary balls 8 is a bit larger tham the external diameter of leveling steel ball 13; This is because leveling steel ball 13 is supported by skewback 11; Two leveling steel balls 13 and a stationary balls 8 are asymmetric triangle setting, adopt 3 levelnesss that levelling principle is regulated worktable 17 of two leveling steel balls 13 and a stationary balls 8.Because two aligning devices are adjacent and be 90 ° of angles configurations; The contact point of each aligning device and coupling ring 15 sides is two cover bearings 6 arranged side by side; Adjustment aligning knob 1; Effect second line of a couplet T-Ring 6 at aligning back-moving spring 4 drives accurate the moving of the orthogonal both direction in worktable 17 edges, thereby has realized the aligning function of worktable 17.
It is a lot of to use aligning and leveling worktable of the present invention to be used for measuring the method for cylindricity of rotary type workpiece, lifts a kind of in its method below, and the use of this method only supplies to use for reference reference.
In the cylindricity measurement process; Base 16 is installed in the center of the rotary main shaft upper end of cylindricity instrument; At first leveling worktable 17, and transducer probe assembly points to worktable 17 outer edges, and worktable rotates around the alignment of shafts under motor and main shaft drive; Observe the sensor measurement displayed value, comprise the contact point of sensor and driving water flat contact face and be called H with the plane of main axis rotation central vertical
FlatThe cross section, contact point is radius of circle R to the distance at main axis rotation center
FlatThrough rotating two leveling knobs, 9 leveling worktables 17 respectively, and through the levelness of fixed pivot with 3 levelling principle adjusting worktable of two moving fulcrums.When the spindle axis counterclockwise direction was rotated, the line at moving fulcrum adjacent with fixed pivot and main axis rotation center was defined as the X of levelling device in the levelling device
FlatAxle, the line at another moving fulcrum and main axis rotation center is defined as Y
FlatAxle, H
FlatThe measuring center point in cross section is e with main shaft gyration center off-centre
Flat, eccentric amount e
FlatAt X
Flat, Y
FlatAxial projection is e
X is flat, e
Y is flat, the equivalent off-centre in three fulcrum planes does
Regulate 2 off-centre in three leveling points
Can reach and regulate the leveling eccentric amount e
FlatPurpose.
Then with the center of rotary type workpiece setting in the worktable upper end; To rotary type workpiece aligning; When the spindle axis counterclockwise direction is rotated, be defined as the X of aligning device in the aligning device adjacent with the line at the contact point of coupling ring and main axis rotation center with levelling device
The heartAxle is defined as the Y of aligning device with the line at the contact point of coupling ring and main axis rotation center in another aligning device
The heartAxle, comprise sensor and rotary type workpiece the surface of revolution contact point and be called H with the plane of main axis rotation central vertical
The heartThe cross section, contact point is radius of circle R to the distance at main axis rotation center
The heart, the rotary type workpiece is placed on worktable 17 centers, H
The heartThe measuring center point in cross section is e with main shaft gyration center off-centre
The heart, eccentric amount e
The heartAt X
The heart, Y
The heartAxial projection is e
The x heart, e
The y heart, the equivalent off-centre in three fulcrum planes does
Regulate 2 off-centre in three leveling points
Can reach and regulate the aligning device eccentric amount e
The heartPurpose, through rotating the offset at center and main axis rotation center that two aligning knobs 1 make revolving meber respectively within the minimum shelves of sensor range ability:, adjust the amount of feeding of two aligning knobs 1 respectively according to the offset of measuring interface display.
Claims (3)
1. aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece; It is characterized in that: this aligning and leveling worktable mainly is made up of aligning device, outer cover (7), stationary balls (8), levelling device, coupling ring (15), base (16), worktable (17) and vertical back-moving spring (18); Described levelling device and aligning device respectively have two; Two levelling devices and two aligning devices all connect with base (16) and along the balanced configuration of center line; Two levelling devices are 90 ° of angle disposed adjacent, and two aligning devices are 90 ° of angle disposed adjacent; In two levelling devices, respectively be provided with a leveling steel ball fulcrum; Two adjacent aligning devices to angular bisector on a stationary balls (8) fulcrum is set; The common support that constitutes the worktable bottom surface contacts two leveling steel ball fulcrums with a stationary balls fulcrum, and stationary balls (8) connects with base (16); Coupling ring (15) be fixed on worktable (17) bottom surface and with the balanced configuration of worktable center line; On coupling ring (15) and base (16), respectively be provided with four step-like through holes that the installation site is identical; Be provided with vertical back-moving spring (18) in each step-like through hole; The two ends of vertical back-moving spring (18) hang on the pin; In two pins one is located in the step-like through hole of coupling ring (15) and another is located in the step-like through hole of base (16), through four vertical back-moving springs (18) worktable (17) tension is supported to contact in coupling ring (15) upper end and with two leveling steel ball fulcrums and a stationary balls fulcrum; Two sides that aligning back-moving spring in each aligning device hangs over coupling ring (15) make the two cover bearings that dispose in the aligning device and the contacts side surfaces of coupling ring; Outer cover (7) is the shape of falling the concave ring groove; Outer cover fall concave ring groove internal diameter and base (16) the external diameter coupling and be stuck on the base; The external diameter of outer cover (7) equates with the external diameter of worktable (17); The axial support height of outer cover (7) and base (16) is less than the vertical height of plane on the base to stationary balls (8); The axial support height ring of outer cover is disposed radially the outer cover through hole of the even cloth of four symmetries, and described outer cover through hole is used for being provided with two leveling knob and aligning knobs in two aligning devices in the levelling device.
2. the aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece as claimed in claim 1; It is characterized in that: aligning device is made up of aligning knob (1), aligning bearing (2), aligning slide block (3), aligning back-moving spring (4), aligning hold-down support (5) and bearing (6); The center line of aligning bearing (2) and aligning hold-down support (5) is consistent and through screw aligning bearing (2) and aligning hold-down support (5) is installed on the base (16); The stepped external thread axle of the major axis that spins of aligning knob (1); Described stepped external thread axle has different pitch and different external diameters; Elder generation's screw-in aligning hold-down support (5) connected with aligning slide block (3) again after the major axis that spins of aligning knob (1) passed through outer cover (7) through hole; Aligning slide block (3) is seated in the gathering sill of aligning bearing (2), and the spin vertical direction of long axis ray of relative aligning knob is equipped with two cover bearings (6) arranged side by side in the end of aligning slide block (3), and the cylindrical of two cover bearings (6) exceeds the front end face of aligning slide block (3); There are two aligning back-moving springs (4) at two ends at aligning slide block (3) through screw retention, and the other end of aligning back-moving spring (4) hangs on coupling ring (15) side.
3. the aligning and leveling worktable that is used to measure cylindricity of slewing type workpiece as claimed in claim 1; It is characterized in that: levelling device is made up of leveling knob (9), leveling knob bearing (10), skewback (11), leveling back-moving spring (12), leveling steel ball (13) and leveling hold-down support (14); The center line of leveling knob bearing (10) and leveling hold-down support (14) is consistent and through screw leveling knob bearing (10) and leveling hold-down support (14) is installed on the base; The external thread axle of leveling knob (9) screws in the leveling knob bearing (10) after passing through outer cover (7) through hole; The male threaded stub portion of leveling knob (9) is the semisphere arc surface; Described semisphere arc surface withstands on the large end face of skewback (11); Skewback (11) bottom surface is provided with positioning step, and skewback (11) is seated in the gathering sill of leveling hold-down support (14), has and the consistent circular hole of leveling steel ball (13) diameter on leveling hold-down support (14) top; Leveling steel ball (13) is set in the described circular hole; Leveling steel ball (13) bottom is dropped on the inclined-plane of skewback (11), and the large end face both sides of skewback (11) hang with two leveling back-moving springs (12), and the other end of leveling back-moving spring (12) passes through screw retention on leveling knob bearing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101151119A CN101788282B (en) | 2010-03-01 | 2010-03-01 | Aligning and leveling worktable for measuring cylindricity of slewing type workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101151119A CN101788282B (en) | 2010-03-01 | 2010-03-01 | Aligning and leveling worktable for measuring cylindricity of slewing type workpiece |
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| Publication Number | Publication Date |
|---|---|
| CN101788282A CN101788282A (en) | 2010-07-28 |
| CN101788282B true CN101788282B (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101151119A Expired - Fee Related CN101788282B (en) | 2010-03-01 | 2010-03-01 | Aligning and leveling worktable for measuring cylindricity of slewing type workpiece |
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| CN102519419A (en) * | 2011-12-19 | 2012-06-27 | 西安威而信精密仪器有限公司 | Manual three-dimensional adjustment platform |
| CN102607482B (en) * | 2012-03-26 | 2013-12-11 | 西安交通大学 | Aligning and levelling device for rotating platform of ultra-precise measuring machine |
| CN103697849B (en) * | 2012-09-28 | 2016-08-31 | 北京航天计量测试技术研究所 | Aligning and leveling worktable for high accuracy cylindricity instrument |
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| CN111571544B (en) * | 2020-05-07 | 2022-02-11 | 宁波大学 | Three-axis aligning leveling type rotary table |
| CN112378366B (en) * | 2020-11-05 | 2021-09-17 | 中国科学院沈阳自动化研究所 | Large-scale cylindricity appearance air supporting automatic aligning device |
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| CN87201349U (en) * | 1987-02-11 | 1988-01-13 | 山东梁山轴承厂 | Bearing inner race rollaway nest place and radius measure gauge |
| DE3801413A1 (en) * | 1988-01-20 | 1989-08-03 | Heidenhain Gmbh Dr Johannes | ROUNDNESS NORMAL |
| CN1458497A (en) * | 2002-05-17 | 2003-11-26 | 陈琪 | Separating measuring method and its device for cylindricity |
| CN1272599C (en) * | 2005-02-04 | 2006-08-30 | 哈尔滨工业大学 | Cylindricity measuring method and device for separating reference errors of cylindricity instrument |
| JP2008292199A (en) * | 2007-05-22 | 2008-12-04 | Mitsutoyo Corp | Device, method, and program for measuring roundness |
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- 2010-03-01 CN CN2010101151119A patent/CN101788282B/en not_active Expired - Fee Related
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