CN109631720A - A kind of measurement method of circular cylinder - Google Patents
A kind of measurement method of circular cylinder Download PDFInfo
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- CN109631720A CN109631720A CN201910002840.4A CN201910002840A CN109631720A CN 109631720 A CN109631720 A CN 109631720A CN 201910002840 A CN201910002840 A CN 201910002840A CN 109631720 A CN109631720 A CN 109631720A
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- circular cylinder
- contour line
- rotary table
- periphery
- circle
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
- G01B5/201—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring roundness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/245—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing perpendicularity
Abstract
The invention discloses a kind of measurement methods of circular cylinder, belong to machining fields of measurement.Measurement method includes: that circle is drawn on the basis of the central axis of the rotary table of NC vertical lathe, and inner circle standard contour line, cylindrical standard contour line and reference circle contour line are delineated on rotary table；On the basis of inner circle standard contour line and cylindrical standard contour line, circular cylinder is mounted on rotary table and centering operation is carried out to circular cylinder；First actual range of periphery of the multiple measurement reference circle contour line to circular cylinder；Exradius, outside diameter, periphery verticality, periphery circularity and the periphery cylindricity of circular cylinder are determined according to the first actual range.The measurement method in the case where circular cylinder is deformed, can improve the measurement accuracy of the exradius of circular cylinder, outside diameter, periphery verticality, periphery circularity and periphery cylindricity.
Description
Technical field
The present invention relates to fields of measurement, in particular to a kind of measurement method of circular cylinder.
Background technique
In the exradius or diameter of measure annular cylinder, generally using vernier caliper, π ruler, internal-and external diameter micrometer or
Tape measure measures, general to use in the periphery circularity, periphery cylindricity or periphery verticality of measure annular cylinder
Dial gauge measures.
And for radius or the circular cylinder being relatively large in diameter, it is at present usually the excircle using tape measure circular cylinder
It is long, the exradius or diameter of circular cylinder are then calculated according to the perimeter measured.Alternatively, using the direct measure annular of tape measure
The exradius or diameter of cylinder.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
Since circular cylinder can produce in the forming process that welding and rolling roll for radius or the circular cylinder being relatively large in diameter
Change shape, and deflection is larger.Under the influence of deformation factor, circularity, cylindricity and the verticality of circular cylinder can be differed
It is larger, and above-mentioned measurement method is in the outside diameter of measure annular cylinder, exradius, periphery circularity, periphery cylindricity
It is inaccurate so as to cause measurement result or not in view of the influence that deformation factor generates measurement result when periphery verticality
Really.And the range and specification of dial gauge are limited, outside the circular cylinder for not being available dial gauge to measure radius or be relatively large in diameter
Disc circularity, periphery cylindricity or periphery verticality.
Summary of the invention
The embodiment of the invention provides a kind of measurement methods of circular cylinder, can be the case where circular cylinder is deformed
Under, improve the exradius of circular cylinder, outside diameter, periphery verticality, periphery circularity and periphery cylindricity
Measurement accuracy.The technical solution is as follows:
The present invention provides a kind of measurement methods of circular cylinder, straight for the exradius of measure annular cylinder, outer circle
Diameter, periphery verticality, periphery circularity and periphery cylindricity, the measurement method include:
Circle is drawn on the basis of the central axis of the rotary table of NC vertical lathe, is delineated on the rotary table
Inner circle standard contour line, cylindrical standard contour line and reference circle contour line；
On the basis of the inner circle standard contour line and the cylindrical standard contour line, the circular cylinder is mounted on institute
It states on rotary table and centering operation is carried out to the circular cylinder；
Repeatedly measure the reference circle contour line to the circular cylinder periphery the first actual range；
According to first actual range determine the exradius of the circular cylinder, outside diameter, periphery verticality,
Periphery circularity and periphery cylindricity；
Wherein, the radius of the inner circle standard contour line is equal with the theoretical value of the inner circle radius of the circular cylinder, institute
The radius for stating excircle configuration line is equal with the theoretical value of the exradius of the circular cylinder, the radius of the reference circle contour line
Greater than the radius of the cylindrical standard contour line.
Further, described that circle is drawn on the basis of the central axis of the rotary table of NC vertical lathe, at described time
Inner circle standard contour line, cylindrical standard contour line and reference circle contour line are delineated on revolving worktable, comprising:
Tooling mandrel is mounted on the rotary table, one far from the rotary table of the tooling mandrel
Correction reference circle is machined on end face, the center of circle of the correction reference circle is located on the central axis of the rotary table；
On the basis of correction reference circle, inner circle standard contour line, cylindrical standard are delineated on the rotary table
Contour line and reference circle contour line.
Further, described on the basis of the inner circle standard contour line and the cylindrical standard contour line, by the ring
Shape cylinder is mounted on the rotary table and carries out centering operation to the circular cylinder, comprising:
The circular cylinder is placed on the rotary table；
Coarse adjustment is carried out to the position of the circular cylinder by the way of to line centering, makes the inner headed face of the circular cylinder
It is bonded with the inner circle standard contour line, is bonded the periphery of the circular cylinder with the cylindrical standard contour line；
Repeatedly measure the reference circle contour line to the circular cylinder periphery the second actual range；
The circular cylinder is adjusted on the rotary table according to second actual range and the first theoretical distance
Position, first theoretical distance be the reference circle contour line radius and the cylindrical standard contour line radius difference
Value.
Further, described that the circular cylinder is adjusted described according to second actual range and the first theoretical distance
Position on rotary table, comprising:
Calculate the average value for repeatedly measuring obtained multiple second actual ranges；
Calculate the average value of multiple second actual ranges and the difference of first theoretical distance；
The position of the circular cylinder is adjusted according to the difference.
Further, the rail head of the NC vertical lathe is equipped with metering pin, and the metering pin is along the revolution work
The central axial direction of platform is arranged, and orthographic projection of the metering pin on the rotary table is located at the reference circle contour line
On；
First actual range of the periphery to the circular cylinder that repeatedly measures the reference circle contour line, packet
It includes:
The rotary table n times are rotated, and execute following steps after rotating the rotary table every time, to obtain
N group data:
The metering pin is moved m times along the central axial direction for being parallel to the rotary table, is moving the amount every time
After needle, measure the metering pin to the circular cylinder periphery minimum range, be denoted as the first actual range；
It wherein, include m first actual ranges, n >=2, m >=3 in every group of data in the n group data.
Further, the rail head of the NC vertical lathe is equipped with metering pin, and the metering pin is along the revolution work
The central axial direction of platform is arranged, and orthographic projection of the metering pin on the rotary table is located at the reference circle contour line
On；
First actual range of the periphery to the circular cylinder that repeatedly measures the reference circle contour line, packet
It includes:
The metering pin is moved m time along the central axial direction for being parallel to the rotary table, and described in move every time
Following steps are executed after metering pin, to obtain m group data:
The rotary table n times are rotated, after rotating the rotary table every time, measure the metering pin to the ring
The minimum range of the periphery of shape cylinder is denoted as the first actual range；
It wherein, include n first actual ranges, n >=2, m >=3 in every group of data in the m group data.
Further, described to determine that the exradius of the circular cylinder and outer circle are straight according to first actual range
Diameter, comprising:
Calculate the average value of multiple first actual ranges；
The exradius R of the circular cylinder is determined according to the following formulaHalf:
RHalf=RReason+(LReason-LIt is real)；
The outside diameter R of the circular cylinder is determined according to the following formulaDirectly:
RDirectly=2RHalf；
Wherein, RReasonIndicate the theoretical value of the exradius of the circular cylinder, LReasonIndicate the half of the reference circle contour line
The difference of the radius of diameter and the cylindrical standard contour line, LIt is realIndicate the average value of multiple first actual ranges.
Further, the disc cylindricity that the circular cylinder is determined according to first actual range, comprising:
Obtain the maximum value and minimum value in multiple first actual ranges；
The difference for calculating the maximum value and the minimum value is denoted as the first difference；
Determine that first difference is the periphery cylindricity of the circular cylinder.
Further, the periphery verticality that the circular cylinder is determined according to the actual range, comprising:
Obtain the maximum value and minimum value of m first actual ranges in pth group data, n >=p >=2；
The difference for calculating the maximum value and the minimum value is denoted as the second difference；
The second difference for calculating each group of data in the n group data, obtains multiple second differences；
Determine that the maximum value in the multiple second difference is the periphery verticality of the circular cylinder.
Further, the periphery circularity that the circular cylinder is determined according to the actual range, comprising:
Obtain the maximum value and minimum value of n first actual ranges in q group data, m >=q >=3；
The difference for calculating the maximum value and the minimum value is denoted as third difference；
Periphery that the third difference is the circular cylinder is determined in the circularity of the position q, wherein described in the expression of the position q
For circular cylinder up to the position that the distance of the rotary table is Hq, Hq is after the metering pin is q times mobile to the revolution work
Make the distance of platform.
Technical solution provided in an embodiment of the present invention has the benefit that
The embodiment of the present invention provides the measurement method of circular cylinder, after circular cylinder centering, then repeatedly measurement reference circle
Contour line to circular cylinder periphery the first actual range, and determine ring according to obtained multiple first actual ranges of measurement
Exradius, outside diameter, periphery verticality, periphery circularity and the periphery cylindricity of shape cylinder, can be improved survey
Measure the accuracy of result.When deformation occurs for circular cylinder, the outer circle of reference circle contour line to circular cylinder can be repeatedly measured
First actual range of each position in face, obtains measurement result, to eliminate the influence that deformation factor generates measurement result, mentions
The accuracy of high measurement result.And due to the actual range of the periphery of reference circle contour line to circular cylinder can be set compared with
It is small, therefore directly adopt vernier caliper or tape measure and can measure the first actual range, measurement result is obtained, is solved in dial gauge
Range and specification limitation under periphery circularity, the periphery cylindricity of the circular cylinder that are unable to measure radius or are relatively large in diameter
Or periphery verticality problem.It is the exradius of the circular cylinder that measurement method provided by the invention is measured, outside diameter, outer
The precision of disc verticality, periphery circularity and periphery cylindricity is high, error is small, be circular cylinder subsequent machining more than
The guarantee of the reasonable distribution and processing quality of amount provides accurate foundation.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of method flow diagram of the measurement method of circular cylinder provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of tooling mandrel provided in an embodiment of the present invention；
Fig. 3 is a kind of scheme of installation of tooling mandrel provided in an embodiment of the present invention；
Fig. 4 is a kind of scribing line schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the specific flow chart of step S2；
Fig. 6 is a kind of structural schematic diagram of circular cylinder provided in an embodiment of the present invention；
Fig. 7 is a kind of instrumentation plan provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of measurement methods of circular cylinder, for measuring the outer circle half of large-sized annular cylinder
Diameter, outside diameter, periphery verticality, periphery circularity and periphery cylindricity.Fig. 1 is provided in an embodiment of the present invention one
The method flow diagram of the measurement method of kind circular cylinder, as shown in Figure 1, the measurement method includes:
S1: circle is drawn on the basis of the central axis of the rotary table of NC vertical lathe, is delineated on rotary table
Inner circle standard contour line, cylindrical standard contour line and reference circle contour line.
Wherein, the theoretical value of inner circle radius of radius and circular cylinder of inner circle standard contour line is equal, excircle configuration line
Radius it is equal with the theoretical value of the exradius of circular cylinder, the radius of reference circle contour line is greater than cylindrical standard contour line
Radius.
In the present embodiment, the radius of reference circle contour line can be set greater than the radius of cylindrical standard contour line extremely
Few 50mm.If the radius of reference circle contour line and the difference of the radius of cylindrical standard contour line are excessive, it is not easy to subsequent measurement the
One actual range, if the radius of reference circle contour line and the difference of the radius of cylindrical standard contour line are too small, subsequent circular cylinder
After mounting, it may be contacted with cylindrical standard contour line, lead to not measure the first actual range.
It should be noted that the theoretical value of inner circle radius and the theoretical value of exradius are ideally (i.e. annular canister
Body does not generate in the state of deformation) value.
Specifically, scriber or lathe tool can then be used by scriber or lathe tool clamping to the knife rest of NC vertical lathe
Point of a knife is crossed on the rotary table of NC vertical lathe.
Fig. 2 is a kind of structural schematic diagram of tooling mandrel provided in an embodiment of the present invention, as shown in Fig. 2, tooling mandrel 100
An end face on be machined with correction reference circle 100a, in conjunction with Fig. 2, step S1 may include:
Tooling mandrel is mounted on rotary table, is machined on an end face of the separate rotary table of tooling mandrel
The center of circle of correction reference circle, correction reference circle is located at turn around on the central axis of workbench.On the basis of correction reference circle, returning
Inner circle standard contour line, cylindrical standard contour line and reference circle contour line are delineated on revolving worktable.
In the present embodiment, the diameter of correction reference circle 100a can be set to 50~100mm.
Fig. 3 is a kind of scheme of installation of tooling mandrel provided in an embodiment of the present invention, as shown in figure 3, tooling core at this time
Axis 100 is co-axially located on the rotary table 210 of NC vertical lathe.
Fig. 4 is a kind of scribing line schematic diagram provided in an embodiment of the present invention, as shown in figure 4, figure label S1 indicates inner circle mark
Quasi- contour line, S2 indicate that cylindrical standard contour line, S3 indicate that reference circle contour line, O indicate the center of circle of correction reference circle 100a.R1
Indicate the radius of inner circle standard contour line, R2Indicate the radius of cylindrical standard contour line, R3Indicate the radius of reference circle contour line,
Wherein R3> R2> R1。
S2: on the basis of inner circle standard contour line and cylindrical standard contour line, circular cylinder is mounted on rotary table
Above and to circular cylinder carry out centering operation.
Fig. 5 is the specific flow chart of step S2, as shown in figure 5, step S2 may include:
S21: circular cylinder is placed on rotary table.
S22: coarse adjustment is carried out to the position of circular cylinder by the way of to line centering.
Fig. 6 is a kind of structural schematic diagram of circular cylinder provided in an embodiment of the present invention, as shown in fig. 6, circular cylinder 300
Including inner headed face 310 and periphery 320.The inner headed face of circular cylinder is bonded with inner circle standard contour line by range estimation, makes ring
The periphery of shape cylinder is bonded with cylindrical standard contour line.
S23: repeatedly the second actual range of the periphery of measurement reference circle contour line to circular cylinder.
Fig. 7 is a kind of instrumentation plan provided in an embodiment of the present invention, as shown in fig. 7, hanging down in NC vertical lathe 200
Metering pin 400 is provided on straight toolholder 220, metering pin 400 is arranged along the central axial direction of rotary table 200, and metering pin 400 exists
Orthographic projection on rotary table 210 is located on reference circle contour line S3.
Metering pin 400 can be adsorbed on the rail head 220 of NC vertical lathe 200 by magnet.Alternatively, can also adopt
Metering pin 400 is fixed on the position of clamping cutter of rail head 220 with the bolt of clamping cutter.
In conjunction with Fig. 7, in an implementation of the embodiment of the present invention, step S23 may include:
Rotary table n times are rotated, and execute following steps after rotation rotary table every time:
Metering pin is moved m times along the central axial direction for being parallel to rotary table, after each mobile metering pin, measures metering pin
To the minimum range of the periphery of circular cylinder, it is denoted as the second actual range.
Available n group data at this time, and include m the second actual ranges in every group of data in n group data, n >=
2, m >=3.
In another implementation of the embodiment of the present invention, step S23 may include:
Move metering pin m time along the central axial direction for being parallel to rotary table, and it is each move after metering pin execution with
Lower step:
Rotary table n times are rotated, after rotation rotary table every time, the periphery of measurement metering pin to circular cylinder
Minimum range is denoted as the second actual range.
Available m group data at this time, and include n the second actual ranges in every group of data in m group data, n >=
2, m >=3.
M*n the second actual ranges can be measured using above two mode.
Preferably, the angle that rotary table rotates every time is θ, θ=360 °/n.
Illustratively, as n=4, angle, θ=90 ° that rotary table rotates every time, as n=8, rotary table
Angle, θ=45 ° rotated every time, as n=8, angle, θ=45 ° that rotary table rotates every time.As n=16, work is turned round
Make angle, θ=22.5 ° that platform rotates every time.
It should be noted that in the present embodiment, the measurer of the measurement length such as vernier caliper or tape measure can be directly used
Measure the first actual range in the second actual range and step S3.
S24: according to the position of the second actual range and the first theoretical distance adjustment circular cylinder on rotary table.
Wherein, the first theoretical distance is the difference of the radius of reference circle contour line and the radius of cylindrical standard contour line.?
In the present embodiment, the first theoretical distance can be set to 50mm.
Specifically, step S24 may include:
The average value for repeatedly measuring obtained multiple second actual ranges is calculated, multiple second actual ranges are then calculated
The difference of average value and the first theoretical distance adjusts the position of circular cylinder according to the difference.
Assuming that the average value of multiple second actual ranges is d1, the first theoretical distance is d2, multiple second actual ranges
The difference of average value and the first theoretical distance is △ d, △ d=d1-d2.
As △ d < 0, illustrates that circular cylinder offsets by △ d to the direction close to metering pin, need to adjust circular cylinder at this time
To the mobile △ d in the direction far from metering pin.As △ d > 0, illustrate that circular cylinder offsets by △ d to the direction far from metering pin, at this time
Need to adjust circular cylinder to close to the mobile △ d in the direction of metering pin.
S3: repeatedly the first actual range of the periphery of measurement reference circle contour line to circular cylinder.
In conjunction with Fig. 7, in an implementation of the embodiment of the present invention, step S3 may include:
Rotary table n times are rotated, and execute following steps after rotation rotary table every time:
Metering pin is moved m times along the central axial direction for being parallel to rotary table, after each mobile metering pin, measures metering pin
To the minimum range of the periphery of circular cylinder, it is denoted as the first actual range.
Available n group data at this time, and include m the first actual ranges in every group of data in n group data, n >=
2, m >=3.
In another implementation of the embodiment of the present invention, step S3 may include:
Move metering pin m time along the central axial direction for being parallel to rotary table, and it is each move after metering pin execution with
Lower step:
Rotary table n times are rotated, after rotation rotary table every time, the periphery of measurement metering pin to circular cylinder
Minimum range is denoted as the first actual range.
Available m group data at this time, and include n the first actual ranges in every group of data in m group data, n >=
2, m >=3.
M*n the first actual ranges can be measured using above two mode.
The first actual range is identical as the measurement method of the second actual range in step S23 in step S3, and in step S3
M and n value and the value of m and n in step S23 can be identical or different, the invention is not limited in this regard.
S4: the exradius, outside diameter, periphery verticality, outer circle of circular cylinder are determined according to the first actual range
Face circularity and periphery cylindricity.
Further, the exradius and outside diameter for determining circular cylinder in step S4 according to the first actual range, can
To include:
The average value of multiple first actual ranges is calculated, then (1) determines the outer circle of circular cylinder partly according to the following formula
Diameter RHalf:
RHalf=RReason+(LReason-LIt is real)； (1)
(2) determine the outside diameter R of circular cylinder according to the following formulaDirectly:
RDirectly=2RHalf； (2)
Wherein, RReasonIndicate the theoretical value of the exradius of circular cylinder, LReasonIndicate the radius and outer circle of reference circle contour line
The difference of the radius of standard contour line, LIt is realIndicate the average value of multiple first actual ranges.
Further, the disc cylindricity for determining circular cylinder in step S4 according to the first actual range may include:
The maximum value and minimum value in multiple first actual ranges are obtained, the difference of maximum value and minimum value is calculated, is denoted as
First difference determines that the first difference is the periphery cylindricity of circular cylinder.
Further, in conjunction with the first implementation in step S3, annular canister is determined according to actual range in step S4
The periphery verticality of body may include:
Obtain the maximum value and minimum value of m the first actual ranges in pth group data, n >=p >=2.Calculate maximum value and
The difference of minimum value is denoted as the second difference, calculates the second difference of each group of data in n group data, it is poor to obtain multiple second
Value.Determine that the maximum value in multiple second differences is the periphery verticality of circular cylinder.
Further, in conjunction with second of implementation in step S3, annular canister is determined according to actual range in step S4
The periphery circularity of body may include:
Obtain the maximum value and minimum value of n the first actual ranges in q group data, m >=q >=3.Calculate maximum value and
The difference of minimum value is denoted as third difference.Determine periphery that third difference is circular cylinder in the circularity of the position q, wherein q
Setting indicates circular cylinder up to the position that the distance of rotary table is Hq, and Hq is after metering pin is q times mobile to rotary table
Distance.
The embodiment of the present invention provides the measurement method of circular cylinder, after circular cylinder centering, then repeatedly measurement reference circle
Contour line to circular cylinder periphery the first actual range, and determine ring according to obtained multiple first actual ranges of measurement
Exradius, outside diameter, periphery verticality, periphery circularity and the periphery cylindricity of shape cylinder, can be improved survey
Measure the accuracy of result.When deformation occurs for circular cylinder, the outer circle of reference circle contour line to circular cylinder can be repeatedly measured
First actual range of each position in face, obtains measurement result, to eliminate the influence that deformation factor generates measurement result, mentions
The accuracy of high measurement result.And due to the actual range of the periphery of reference circle contour line to circular cylinder can be set compared with
It is small, therefore directly adopt vernier caliper or tape measure and can measure the first actual range, measurement result is obtained, is solved in dial gauge
Range and specification limitation under periphery circularity, the periphery cylindricity of the circular cylinder that are unable to measure radius or are relatively large in diameter
Or periphery verticality problem.It is the exradius of the circular cylinder that measurement method provided by the invention is measured, outside diameter, outer
The precision of disc verticality, periphery circularity and periphery cylindricity is high, error is small, be circular cylinder subsequent machining more than
The guarantee of the reasonable distribution and processing quality of amount provides accurate foundation.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of measurement method of circular cylinder, the exradius, outside diameter, periphery for measure annular cylinder are vertical
Degree, periphery circularity and periphery cylindricity, which is characterized in that the measurement method includes:
Circle is drawn on the basis of the central axis of the rotary table of NC vertical lathe, delineates inner circle on the rotary table
Standard contour line, cylindrical standard contour line and reference circle contour line；
On the basis of the inner circle standard contour line and the cylindrical standard contour line, the circular cylinder is mounted on described return
Centering operation is carried out on revolving worktable and to the circular cylinder；
Repeatedly measure the reference circle contour line to the circular cylinder periphery the first actual range；
The exradius, outside diameter, periphery verticality, outer circle of the circular cylinder are determined according to first actual range
Face circularity and periphery cylindricity；
Wherein, the radius of the inner circle standard contour line is equal with the theoretical value of the inner circle radius of the circular cylinder, described outer
The radius of circle contour line is equal with the theoretical value of the exradius of the circular cylinder, and the radius of the reference circle contour line is greater than
The radius of the cylindrical standard contour line.
2. measurement method according to claim 1, which is characterized in that the rotary table with NC vertical lathe
Circle is drawn on the basis of central axis, and inner circle standard contour line, cylindrical standard contour line and reference are delineated on the rotary table
Circle contour line, comprising:
Tooling mandrel is mounted on the rotary table, the end face far from the rotary table of the tooling mandrel
On be machined with correction reference circle, the center of circle of correction reference circle is located on the central axis of the rotary table；
On the basis of correction reference circle, inner circle standard contour line, cylindrical standard profile are delineated on the rotary table
Line and reference circle contour line.
3. measurement method according to claim 1, which is characterized in that described with the inner circle standard contour line and described outer
On the basis of circle standard contour line, the circular cylinder is mounted on the rotary table and the circular cylinder is looked for
Positive operation, comprising:
The circular cylinder is placed on the rotary table；
Coarse adjustment is carried out to the position of the circular cylinder by the way of to line centering, makes inner headed face and the institute of the circular cylinder
The fitting of inner circle standard contour line is stated, is bonded the periphery of the circular cylinder with the cylindrical standard contour line；
Repeatedly measure the reference circle contour line to the circular cylinder periphery the second actual range；
Position of the circular cylinder on the rotary table is adjusted according to second actual range and the first theoretical distance
It sets, first theoretical distance is the difference of the radius of the reference circle contour line and the radius of the cylindrical standard contour line.
4. measurement method according to claim 3, which is characterized in that described to be managed according to second actual range and first
Position of the circular cylinder on the rotary table is adjusted by distance, comprising:
Calculate the average value for repeatedly measuring obtained multiple second actual ranges；
Calculate the average value of multiple second actual ranges and the difference of first theoretical distance；
The position of the circular cylinder is adjusted according to the difference.
5. measurement method according to claim 1, which is characterized in that the rail head of the NC vertical lathe is equipped with
Metering pin, the metering pin is arranged along the central axial direction of the rotary table, and the metering pin is on the rotary table
Orthographic projection be located on the reference circle contour line；
First actual range of the periphery to the circular cylinder that repeatedly measures the reference circle contour line, comprising:
The rotary table n times are rotated, and execute following steps after rotating the rotary table every time, to obtain n group
Data:
The metering pin is moved m times along the central axial direction for being parallel to the rotary table, after moving the metering pin every time,
Measure the metering pin to the circular cylinder periphery minimum range, be denoted as the first actual range；
It wherein, include m first actual ranges, n >=2, m >=3 in every group of data in the n group data.
6. measurement method according to claim 1, which is characterized in that the rail head of the NC vertical lathe is equipped with
Metering pin, the metering pin is arranged along the central axial direction of the rotary table, and the metering pin is on the rotary table
Orthographic projection be located on the reference circle contour line；
First actual range of the periphery to the circular cylinder that repeatedly measures the reference circle contour line, comprising:
The metering pin is moved m times along the central axial direction for being parallel to the rotary table, and is moving the metering pin every time
After execute following steps, to obtain m group data:
The rotary table n times are rotated, after rotating the rotary table every time, measure the metering pin to the annular canister
The minimum range of the periphery of body is denoted as the first actual range；
It wherein, include n first actual ranges, n >=2, m >=3 in every group of data in the m group data.
7. measurement method according to claim 5 or 6, which is characterized in that described to be determined according to first actual range
The exradius and outside diameter of the circular cylinder, comprising:
Calculate the average value of multiple first actual ranges；
The exradius R of the circular cylinder is determined according to the following formulaHalf:
RHalf=RReason+(LReason-LIt is real)；
The outside diameter R of the circular cylinder is determined according to the following formulaDirectly:
RDirectly=2RHalf；
Wherein, RReasonIndicate the theoretical value of the exradius of the circular cylinder, LReasonIndicate the radius of the reference circle contour line with
The difference of the radius of the cylindrical standard contour line, LIt is realIndicate the average value of multiple first actual ranges.
8. measurement method according to claim 5 or 6, which is characterized in that described to be determined according to first actual range
The disc cylindricity of the circular cylinder, comprising:
Obtain the maximum value and minimum value in multiple first actual ranges；
The difference for calculating the maximum value and the minimum value is denoted as the first difference；
Determine that first difference is the periphery cylindricity of the circular cylinder.
9. measurement method according to claim 5, which is characterized in that described according to first actual range determination
The periphery verticality of circular cylinder, comprising:
Obtain the maximum value and minimum value of m first actual ranges in pth group data, n >=p >=2；
The difference for calculating the maximum value and the minimum value is denoted as the second difference；
The second difference for calculating each group of data in the n group data, obtains multiple second differences；
Determine that the maximum value in the multiple second difference is the periphery verticality of the circular cylinder.
10. measurement method according to claim 6, which is characterized in that described to determine institute according to first actual range
State the periphery circularity of circular cylinder, comprising:
Obtain the maximum value and minimum value of n first actual ranges in q group data, m >=q >=3；
The difference for calculating the maximum value and the minimum value is denoted as third difference；
Periphery that the third difference is the circular cylinder is determined in the circularity of the position q, wherein the position q indicates the annular
For cylinder up to the position that the distance of the rotary table is Hq, Hq is after the metering pin is q times mobile to the rotary table
Distance.
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