WO2016065717A1 - 航空发动机转静子装配/测量五自由度调整定位方法与装置 - Google Patents
航空发动机转静子装配/测量五自由度调整定位方法与装置 Download PDFInfo
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- WO2016065717A1 WO2016065717A1 PCT/CN2014/095125 CN2014095125W WO2016065717A1 WO 2016065717 A1 WO2016065717 A1 WO 2016065717A1 CN 2014095125 W CN2014095125 W CN 2014095125W WO 2016065717 A1 WO2016065717 A1 WO 2016065717A1
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- motion
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- adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
- B23P19/002—Article feeders for assembling machines orientating the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
- B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
- F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/10—Stators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/24—Rotors for turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/30—Arrangement of components
- F05D2250/35—Arrangement of components rotated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/83—Testing, e.g. methods, components or tools therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Definitions
- the invention belongs to the technical field of aircraft engine assembly measurement, and particularly relates to a method and device for adjusting and positioning a five-degree-of-freedom of aero-engine static sub-assembly/measurement.
- Engine vibration is an important factor affecting aircraft safety and an important indicator of engine performance.
- the engine's turbine components have high speed and high mass and are a major source of vibration for the engine.
- the assembly process In order to reduce this effect, in addition to being eliminated during the engine dynamic balance test, the assembly process must be strictly controlled, because the engine assembly is the previous step of dynamic balancing, and the vibration is amplified at high speed when the assembly is unreasonable 100-1000. Times, good assembly can greatly reduce the pressure of dynamic balance. Therefore, as a key technology to improve the performance of aero-engines, aero-engine assembly testing technology has received more and more attention and has become a research hotspot.
- the aero-engine consists of a complex turbine stator and rotor.
- the stator and rotor need to be highly concentric after assembly.
- the high-pressure turbine rotor is a cantilever structure, so slight imbalances and disturbances can cause large vibration reactions.
- the test object of the aero-engine assembly is the turbine stator and the rotor. Under the condition that the machining accuracy of the component meets the requirements, the final inspection is controlled by the guarantee of the installation fitting precision and the concentricity.
- Engine rotation The high pressure is generated, and its static rotor is composed of a plurality of single components stacked together, and the rotary shaft of each component is ideally coincident with the axis of the entire engine.
- the high-speed rotation speed of a large engine is greater than 10,000 rpm, the axial or radial deflection of a single component will inevitably cause the center of the turbine disk to deviate from the axis of rotation of the engine. Under such conditions, a very large centrifugal force will be generated, resulting in an imbalance of rotor rotation. This causes engine vibration, thus ensuring the concentricity of the components is the focus and difficulty of installation.
- the British Taylor Hobson Company has developed a three-point method to adjust the tilting workbench.
- the worktable is supported by three fulcrums A, B, and P constituting an equilateral triangle, wherein the P point is fixed, and the other A and B points are equipped with a driving mechanism to realize micro movement in the vertical direction, thereby
- the adjustment of the inclination of the workpiece is achieved (AB Barnaby, MW Mills, HRLane, General apparatus workpiece position controller-automatically centres and levels by computer using surface data from transducer with transverse compensation after tilting. EP240150-A2.1987: 2-8).
- the workbench uses a drive mechanism to directly carry the load, and all the weight of the load falls on the three fulcrums, which requires the drive mechanism to have a large driving force, and the workbench cannot be used in the case of a large load.
- Tokyo Precision Co., Ltd. designed a table that can perform eccentricity and tilt adjustment in two orthogonal directions, and gave a tilt adjustment method using multiple measurement sections to obtain the axial direction of the workpiece (Katamachi, Shouzou .Roundness Measurement Apparatus.US20080154540.2008: 1 ⁇ 5).
- Patent CN201110450087 “A large-scale three-dimensional adjustment platform for multi-function measuring instruments” proposes a large-scale three-dimensional adjustment platform for multi-function measuring instruments.
- Two telescopic motors distributed in the platform can push the intermediate platform to rotate along the rotating components and drive The upper platform rotates together to realize the adjustment of the tilting swing of the workpiece in the Z direction.
- the tilt adjustment of the platform can only rotate around a rotating component, and the tilt adjustment capability is limited and the precision is not high.
- the patent CN98229568.5 "high-precision fast automatic leveling mechanism” proposes a high-precision fast leveling mechanism.
- the working principle is as follows: the motor drives the eccentric wheel to rotate, and the spring in the base makes the thimble and the eccentric wheel lean against each other to drive the positioning.
- the nail and the calibration plate move up and down along the bearing sleeve.
- the calibration plate is an air-floating thrust bearing, and the end faces are evenly distributed with a plurality of throttle micro-holes; the bearing table is connected with the hemisphere, and when the hemisphere and the hemisphere seat are connected with pressurized air When the bearing table can rotate around the center of the hemisphere seat, the rising cylinder drives the bearing table to move up and down.
- a gas film is formed and the workpiece is leveled indirectly.
- the object of the present invention is to solve the problems of the prior art mentioned above, and propose a 360° rotary motion about the Z axis, a plane motion along the X axis, a plane motion along the Y axis, a rotary motion around the X axis, and a wrap around the Y.
- the five-degree-of-freedom adjustment method of the rotary motion of the shaft, the planar motion and the rotation adjustment of the tested component by the composite motion of five degrees of freedom; the present invention also provides an aero-engine static subassembly/measurement five degrees of freedom Adjust the positioning device.
- An aero-engine static subassembly/measurement five-degree-of-freedom adjustment positioning method which comprises 360° rotary motion around a Z-axis, planar motion along an X-axis, and planar motion along the Y-axis, and rotational motion around the X-axis
- the yaw motion of the Y-axis is five degrees of freedom
- the X-axis and the Y-axis are orthogonal to each other, and the Z-axis is perpendicular to the plane defined by the X-axis and the Y-axis
- the test piece is performed by a composite motion of five degrees of freedom
- the adjustment of the plane motion and rotation, the specific adjustment process is:
- Plane motion adjustment 1) Firstly, the test piece is rotated 360° by the Z-axis, and the radial error of the specified section on the tested piece is measured by the sensor to obtain the eccentricity ⁇ x of the tested part on the X-axis and the Y-axis.
- the eccentricity ⁇ y; 2) according to ⁇ x adjusts the test piece to move along the X axis, the displacement of the motion is ⁇ x; according to ⁇ y, the test piece moves along the Y axis, the displacement of the motion is ⁇ y; 3) Repeat steps 1) ⁇ 2 The adjustment of the planar motion is stopped until the eccentricity ⁇ x of the test piece on the X-axis is less than the set value ⁇ x 0 and the eccentricity ⁇ y on the Y-axis is less than the set value ⁇ y 0 .
- Rotation adjustment 1) The Z-axis is rotated 360° around the test piece, and the measured cross-section 1 on the test piece is measured using a sensor to obtain the spatial coordinates (x 1 , y 1 , z 1 ) of the center of the cross-section 1 fit.
- the Z-axis is driven to rotate the test piece 360° for the whole week, and the measuring section 2 specified on the test piece is measured by using the sensor to obtain the spatial coordinate (x 2 , y 2 , z 2 ) of the center of the fitting of the section 2; Calculating the spatial position of the geometric axis of the test piece from (x 1 , y 1 , z 1 ) and (x 2 , y 2 , z 2 ), and obtaining the angle ⁇ between the geometric axis along the X-axis direction and the Z-axis x , the angle ⁇ y along the Y axis along the Y axis; 4) adjust the rotation of the test piece around the Y axis according to ⁇ x , the angle of the rotary motion is ⁇ x ; adjust the rotation of the test piece around the X axis according to ⁇ y The angle of the rotary motion is ⁇ y , so that the geometric axis of the test piece is adjusted to coincide with the
- An aero-engine rotary subassembly/measurement five-degree-of-freedom adjustment positioning device includes a clamping mechanism, a rotating table component, a translational table component, and a rotary table component.
- the rotating table component comprises a table top and a base, and the table top is placed on the base; a toroidal convex ball bowl is arranged on the table top, and a circular concave spherical seat is arranged on the base, the annular concave ball A retainer is fixedly mounted on the seat, and a circular hole uniformly distributed in the circumferential direction is arranged on the retainer, and a spherical rolling body g 1 having an equal spherical diameter is embedded in the circular hole; the concave concave spherical seat on the base Supporting the annular convex ball bowl on the table by the spherical rolling body g 1 ; an elastic limit support column and a driving system Q 1 are arranged along the X axis on the base, and the elastic limit support column and the configuration stopper on the table close contact with a stopper for preventing relative rotation between the table and the base; in the table attached to the transmission member of the drive system P 1 Q 1 and arranged to drive
- the driving system Q 1 is arranged adjacent to the driving system Q 2 , and the elastic limiting support columns are arranged adjacent to the elastic guiding columns.
- the clamping mechanism is fixed to the table top of the rotating table member.
- the translation table member is disposed below the rotating table member to drive the rotating table member to move along the X axis and the Y axis;
- the translation table member includes a bottom plate and a guiding layer, and the guiding layer is disposed in the circumferential direction a weight reducing groove, wherein a sleeve plate is disposed in the weight reducing groove;
- a through hole is densely arranged on the sleeve plate, and a spherical rolling body g 2 having an equal spherical diameter is embedded in the through hole;
- the sleeve plate passes through the spherical rolling body g 2 providing support for the base on the rotating table member;
- a drive system Q 3 is disposed at a diameter opposite to the drive system Q 2 for driving the guide layer to move along the Y axis; and is disposed at a diameter opposite to the drive system Q 1
- the drive system Q 4 is configured to drive the base on the rotating table member to move along the X axi
- the rotary table component comprises an air floating sleeve, an air floating shaft and a rotary drive system Q 5 , wherein the air floating shaft is fitted in the air floating sleeve, and the upper end of the air floating shaft and the bottom plate of the translation unit At the lower end of the air-floating shaft, a rotary drive system Q 5 is arranged to drive the air-floating shaft to rotate.
- the spherical rolling body g 1 embedded in the circular hole has the same spherical diameter as the spherical rolling body g 2 embedded in the through hole, or the spherical diameter is different.
- the X axis and the Y axis are orthogonal to each other, and the axis of rotation of the air floating axis is perpendicular to a plane defined by the X axis and the Y axis.
- the degree of freedom adjustment and positioning device makes full use of the characteristics of spherical guiding and rolling reduction, as well as the high-precision characteristics of gas lubrication, and achieves excellent characteristics of high displacement sensitivity and high stability under large load conditions, and satisfies the aeroengine rotation. Static precision adjustment and measurement needs;
- the rotating table member is placed on the spherical rolling body g 2 of the bottom plate, and the frictional force between the rotating table member and the base is changed into rolling friction, thereby reducing the friction force, thereby ensuring the device under the condition of large load.
- the sleeve plate of the device of the invention adopts a lightweight material, which reduces the resistance of the rolling element g 2 rolling in the weight reduction groove, and improves the movement sensitivity of the translational member moving along the X-axis direction.
- the method and device of the invention are particularly suitable for the aero-engine static sub-assembly measurement occasion, and solve the problem of accurately adjusting and positioning the assembled/measured test piece under the condition of large load or large load.
- Figure 1 is a coordinate system diagram of a five-degree-of-freedom adjustment method for aero-engine static subassembly/measurement
- FIG. 2 is a schematic structural view of an aero-engine static subassembly/measurement five-degree-of-freedom adjustment positioning device
- FIG. 3 is a schematic view showing the structure of a table of a five-degree-of-freedom adjustment and positioning device for aero-engine rotary subassembly/measurement;
- FIG. 4 is a schematic structural view of a base of an aero-engine rotary subassembly/measurement five-degree-of-freedom adjustment positioning device
- Fig. 5 is a schematic view showing the structure of the guiding layer of the aero-engine static sub-assembly/measurement five-degree-of-freedom adjusting and positioning device.
- A rotating table components
- B translation table components
- C rotary table components
- 1, clamping mechanism 2, table top; 3, base
- 8, elastic limit support column 9, drive system Q 1 ; 10 limit stop; 11, transmission components P 1 ; 12, elastic guide column; 13, drive system Q 2 ;14, guiding block; 15, transmission part P 2 ; 16, bottom plate; 17, guiding layer; 18, weight reducing groove; 19, sleeve plate; 20, through hole; 21, drive system Q 3 ; System Q 4 ; 23, air-floating sleeve; 24, air-floating shaft; 25, slewing drive system Q 5 ; L, geometric axis of the tested piece.
- an aero-engine rotary subassembly/measurement five-degree-of-freedom adjustment positioning device includes a clamping mechanism 1, a rotary table member A, a translational table member B, and a rotary table member C.
- the rotating table member A includes a table top 2 and a base 3, and the table top 2 is placed on the base 3.
- a toroidal convex bowl 4 is disposed, and the base 3 is provided with a concave concave ball.
- a retaining frame 6 is fixed to the annular concave spherical seat 5, and a circular hole 7 uniformly distributed in the circumferential direction is arranged on the retaining frame 6, and a spherical rolling body having an equal spherical diameter is embedded in the circular hole 7.
- the annular concave ball seat 5 on the base 3 provides support for the annular convex ball bowl 4 on the table 2 by the spherical rolling body g 1 ;
- the elastic is arranged along the X axis on the base 3
- the limit support post 8 and the drive system Q 1 9 , the elastic limit support post 8 and the limit stop 10 disposed on the table 2 are in close contact with each other to prevent relative rotation between the table 2 and the base 3;
- the drive system Q 1 9 is connected to the transmission member P 1 11 disposed on the table 2 for driving the table 2 to rotate about the Y axis; on the base 3, the elastic guide column 12 and the drive system Q 2 13 are disposed along the Y axis.
- the elastic guide post 12 is in contact with the guide block 14 disposed on the table 2 for guiding the table 2 to rotate about the X axis; the drive system Q 2 13 is disposed at The transmission members P 2 15 on the table top 2 are connected to drive the table 2 to rotate about the X axis.
- the drive system Q 1 9 is arranged orthogonally adjacent to the drive system Q 2 13 , and the elastic limit support columns 8 are arranged adjacent to the elastic guide columns 12 orthogonally.
- the chucking mechanism 1 is fixed to the table top 2 of the turntable member A.
- the translation table member B is placed below the rotary table member A to drive the rotary table member A to move along the X-axis and the Y-axis;
- the translation table member B includes a bottom plate 16 and a guiding layer 17 at the guiding layer A weight reducing groove 18 is disposed in the circumferential direction, and a sleeve 19 is disposed in the weight reducing groove 18;
- a through hole 20 is disposed in the sleeve 19, and a spherical diameter is embedded in the through hole 20.
- the spherical rolling body g 2 ; the cover plate 19 provides support for the base 3 on the rotary table member A by the spherical rolling body g 2 ; a drive system Q 3 21 is disposed at a diameter opposite to the drive system Q 2 13 for driving the guide The layer 17 is moved along the Y-axis; a drive system Q 4 22 is disposed at a counter-diameter to the drive system Q 1 9 for driving the base 3 on the rotary table member A to move along the X-axis.
- the rotary table member C includes an air floating sleeve 23, an air floating shaft 24 and a swing drive system Q 5 25, and the air floating shaft 24 is fitted in the air floating sleeve 23, and the upper end of the air floating shaft 24 is
- the bottom plate 16 of the paddle member B is fixedly connected, and the lower end of the air floating shaft 24 is provided with a swing drive system Q 5 25 for driving the air floating shaft 24 to rotate.
- the spherical rolling element g 1 embedded in the circular hole 7 has the same spherical diameter as the spherical rolling element g 2 embedded in the through hole 20, or has a different spherical diameter.
- the X axis and the Y axis are orthogonal to each other, and the axis of rotation of the air floating shaft 24 is perpendicular to a plane defined by the X axis and the Y axis.
- the aero-engine static sub-assembly/measurement five-degree-of-freedom adjustment positioning method uses the slewing drive system Q 5 25 to drive the air-floating shaft 24 to form a 360° rotary motion around the Z-axis in the air-floating sleeve 23, which is driven by the drive system Q 4 22
- the base 3 on the table member A moves along the X axis
- the drive system Q 3 21 drives the guide layer 17 to move along the Y axis, causing the load to also move along the Y axis.
- the plane motion adjustment process is as follows: 1) Firstly, the test piece is rotated 360° by the air floating shaft 24, and the radial error of the specified section on the tested piece is measured by the sensor to obtain the eccentricity ⁇ x of the tested part on the X axis and The eccentricity ⁇ y on the Y-axis; 2) according to ⁇ x, the drive system Q 4 22 drives the base 3 on the rotary table member A to move along the X-axis, and adjusts the test piece to move along the X-axis, and the displacement of the movement is ⁇ x; ⁇ y drive system Q 3 21 drives the guide layer 17 to move along the Y axis, adjusts the test piece to move along the Y axis, and the displacement of the motion is ⁇ y; 3) repeat steps 1) to 2) until the test piece is on the X axis.
- the adjustment of the plane motion is stopped; the rotation adjustment process is: 1) driving the test piece to rotate all the way through the air floating shaft 24 360°, using the sensor to measure the measured section 1 on the test piece, the spatial coordinates (x 1 , y 1 , z 1 ) of the center of the fitting of the section 1 are obtained; 2) the part to be tested is rotated by the air floating shaft 24 360°, using the sensor to measure the specified measurement section 2 on the test piece, and get the cut 2 fitting center spatial coordinates (x 2, y 2, z 2); 3) a (x 1, y 1, z 1) and (x 2, y 2, z 2) is calculated to obtain a test piece geometrical axis L the spatial position, and obtains the geometric axis L in the X axis direction and the Z-axis angle ⁇ x, Y-axis direction and
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Machine Tool Units (AREA)
- Manufacture Of Motors, Generators (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
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Abstract
Description
Claims (4)
- 一种航空发动机转静子装配/测量五自由度调整定位方法,其特征在于:该方法包括绕Z轴的360°回转运动、沿X轴的平面运动和沿Y轴的平面运动、绕X轴的回转运动和绕Y轴的回转运动五个自由度;所述的X轴与Y轴相互正交,Z轴垂直于X轴与Y轴所确定的平面;通过五个自由度的复合运动,对被测试件进行平面运动和转动的调整,其具体调整过程是:平面运动调整:1)首先通过Z轴带动被测试件整周旋转360°,采用传感器测量被测试件上指定截面的径向误差,得到被测试件在X轴的偏心量Δx和在Y轴的偏心量Δy;2)依据Δx调整被测试件沿X轴运动,运动的位移量为Δx;依据Δy调整被测试件沿Y轴运动,运动的位移量为Δy;3)重复步骤1)~2),直到满足被测试件在X轴的偏心量Δx小于设定值Δx0,在Y轴的偏心量Δy小于设定值Δy0,则停止平面运动的调整;转动调整:1)通过Z轴带动被测试件整周旋转360°,使用传感器测量被测试件上指定的测量截面1,得到截面1拟合圆心的空间坐标(x1,y1,z1);2)通过Z轴带动被测试件整周旋转360°,使用传感器测量被测试件上指定的测量截面2,得到截面2拟合圆心的空间坐标(x2,y2,z2);3)由(x1,y1,z1)和(x2,y2,z2)计算得到被测试件几何轴线(L)的空间位置,并获得该几何轴线(L)沿X轴方向与Z轴的夹角θx,沿Y轴方向与Z轴的夹角θy;4)依据θx调整被测试件绕Y轴回转运动,回转运动的角度为θx;依据θy调整被测试件绕X轴回转运动,回转运动的角度为θy,从而调整被测试件的几何轴线(L)与回转轴Z尽量重合;5)重复步骤1)~4),直到被测试件几何轴线(L)沿X轴方向与Z轴的夹角θx小于设定值θx0,沿Y轴方向与Z轴的夹角θy小于设定值θy0,则停止转动运动的调整。
- 一种航空发动机转静子装配/测量五自由度调整定位装置,该装置包括装夹机构(1)、转动台部件(A)、平动台部件(B)和回转台部件(C);其特征在于:所述的转动台部件(A)包括台面(2)和底座(3),台面(2)置于底座(3)上;在所述台面(2)上配置有圆环凸型球碗(4),在所述底座(3)上配置有圆环凹型球座(5),所述圆环凹型球座(5)上固连有保持架(6),在保持架(6)上设有沿圆周方向均匀分布的圆孔(7),在圆孔(7)内嵌有球径相等的球形滚动体g1;所述的底座(3)上的圆环凹型球座(5)通过球形滚动体g1为台面(2)上的圆环凸型球碗(4)提供支承;在所述的底座(3)上沿X轴配置有弹性限位支承柱(8)和驱动系统Q1(9),所述弹性限 位支承柱(8)与配置在台面(2)上的限位挡块(10)紧密接触配合,用以防止台面(2)与底座(3)之间有相对转动;所述驱动系统Q1(9)与配置在台面(2)上的传动部件P1(11)相连,用以驱动台面(2)绕Y轴转动;在底座(3)上沿Y轴配置有弹性导向柱(12)和驱动系统Q2(13),弹性导向柱(12)与配置在台面(2)的导向块(14)接触配合,用以引导台面(2)绕X轴转动;所述驱动系统Q2(13)与配置在台面(2)上的传动部件P2(15)相连,用以驱动台面(2)绕X轴转动;驱动系统Q1(9)与驱动系统Q2(13)相邻正交布置,弹性限位支承柱(8)与弹性导向柱(12)相邻正交布置;所述装夹机构(1)固连于所述的转动台部件(A)的台面(2)上;所述的平动台部件(B)置于转动台部件(A)的下方,带动转动台部件(A)沿X轴和Y轴运动;所述平动台部件(B)包括底板(16)和导向层(17),在所述导向层(17)上沿圆周方向设置有减重槽(18),在所述的减重槽(18)内配置有套板(19);在套板(19)上密布配置有通孔(20),在通孔(20)内嵌有球径相等的球形滚动体g2;套板(19)通过球形滚动体g2为转动台部件(A)上的底座(3)提供支承;在与驱动系统Q2(13)的对径处配置有驱动系统Q3(21),用以驱动导向层(17)沿Y轴运动;在与驱动系统Q1(9)的对径处配置有驱动系统Q4(22),用以驱转动台部件(A)上的底座(3)沿X轴运动;所述的回转台部件(C)包括气浮套(23)、气浮轴(24)和回转驱动系统Q5(25),所述的气浮轴(24)配装在气浮套(23)内,气浮轴(24)的上端与所述的平动台部件(B)的底板(16)固连,气浮轴(24)的下端配置有回转驱动系统Q5(25),用以驱动气浮轴(24)回转运动。
- 根据权利要求2所述的一种航空发动机转静子装配/测量五自由度调整定位装置,其特征在于:在圆孔(7)内嵌入的球形滚动体g1与在通孔(20)内嵌入的球形滚动体g2的球径尺寸相同,或球径尺寸不同。
- 根据权利要求2所述的一种航空发动机转静子装配/测量五自由度调整定位装置,其特征在于:X轴与Y轴相互正交,气浮轴(24)的回转轴线垂直于X轴与Y轴所确定的平面。
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