CN109373866A - A kind of cylinder spinning with tension circularity and straightness on-line measurement mechanism and method - Google Patents
A kind of cylinder spinning with tension circularity and straightness on-line measurement mechanism and method Download PDFInfo
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- CN109373866A CN109373866A CN201811057956.XA CN201811057956A CN109373866A CN 109373866 A CN109373866 A CN 109373866A CN 201811057956 A CN201811057956 A CN 201811057956A CN 109373866 A CN109373866 A CN 109373866A
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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
- G01B5/20—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
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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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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Abstract
The present invention provides a kind of cylinder spinning with tension circularity and straightness on-line measurement mechanism and method, measuring mechanism of the invention are integrally mounted on spinning lathe, can be measured online by measuring mechanism after spinning Plastic Forming without unloading in spinning blank；Measuring mechanism includes that measurement contact, sliding block, stroke spring, guide rail and pedestal, pedestal are mounted on the lathe bed of spinning lathe, and guide rail is provided on the length direction of pedestal, and the measurement range of measuring mechanism can be increased by measuring the stroke spring on contact；In specific measurement, first spinning blank is transported at measuring mechanism, then measurement point is set separately on the axial and circumferential of cylinder, the actual profile of cylinder is formed after being modified to the data of measurement point, then actual profile is compared with nominal contour, so as to intuitively show the circularity and straightness of cylinder.The present invention is greatly reduced for the circularity of ultra-long barrel and the measurement error of straightness, can satisfy the requirement efficiently produced.
Description
Technical field
The invention belongs to spinning detection technique fields, and in particular to a kind of cylinder spinning with tension circularity and straightness are surveyed online
Measuring mechanism and method.
Background technique
Currently, there is no mature effective method for the detection of large caliber ultra-long cylinder roundness and straightness.In production often
Using more original offline inspection means, not only detection efficiency is low, but also testing result error is big, has seriously affected product matter
Amount.Existing some on-line checking measures, for be all that some length are less than 4000mm, diameter is usually below in 400mm
The spinning product of small size, when the length of tested ultra-long barrel is not less than 7000mm, and diameter is not less than 500mm, especially
It is the ultra-long barrel of spinning with tension technique production, workpiece middle section is likely to deviate machine tool chief axis center line, in measurement circularity
When measured value and the excessive situation of desired value deviation frequent occurrence, actually or scene be also difficult to conclude that detection means is unreasonable
The above results caused by product itself dimension overproof.By retrieving and investigating, it is found that existing detection technique is difficult to meet engineering
Metaplasia produce in high-precision, heavy caliber, ultra-long barrel spinning product be efficient, accurate measurement request.
Accordingly, it is desirable to provide a kind of be directed to the insufficient improved technology scheme of the above-mentioned prior art.
Summary of the invention
The purpose of the present invention is overcome it is above-mentioned in the prior art for ultra-long barrel circularity and straightness detected when
There is no a more mature effective method, existing detection method not only inefficiency, and also testing result is also inaccurate, especially
It is the ultra-long barrel for being greater than 7000mm, diameter 500mm-600mm for length, is difficult to guarantee work centre line and machine tool chief axis center
Line is overlapped, to cause when measuring circularity this measuring mechanism and measurement there is a situation where measured value and desired value deviation are excessive
Method can preferably overcome disadvantages described above, and circularity to ultra-long barrel and straightness are accurately measured.
To achieve the goals above, the invention provides the following technical scheme:
A kind of cylinder spinning with tension circularity and straightness On-line Measuring Method, the measurement method include the following steps:
S1, cylinder is sent at measuring mechanism by the length feed control mechanism of spinning lathe, and to measuring mechanism
Stroke carry out coarse adjustment；
S2, the initial position for determining the measurement of cylinder circumferential and axial；
S3, multiple sections to be measured are set along the axial direction interval of cylinder, and determines and divides in each section circumferential direction to be measured
The position of the measurement point of cloth and the quantity of measurement point；
S4, in the processing length of cylinder, the measurement contact of measuring mechanism is aligned each section to be measured one by one, reads every
The location information of measurement point on a section；
The location information of measurement point on section to be measured each of is read in S5, amendment, obtains the actual profile of cylinder, then by cylinder
The actual profile of body and the nominal contour of cylinder compare, and finally intuitively show the true circularity of cylinder and straightness.
In a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described above, it is preferable that the step
S1 specifically includes the following steps:
S101, ensure that cylinder completes the mould pressing of all passages, and cylinder is in loading condition, then passes through cylinder
The length feed control mechanism of spinning lathe is sent at measuring mechanism, and measuring mechanism is mounted on spinning lathe；
S102, the position that contact is measured according to the FINAL APPEARANCE size adjusting measuring mechanism of cylinder, are higher than measurement contact
The lateral wall of cylinder completes the coarse adjustment of measuring mechanism stroke.
In a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described above, it is preferable that the step
S2 specifically includes the determination of the initial position of the circumferential and axial of cylinder, specifically includes the following steps:
Cylinder circumferentially measures the determination of initial position:
S201, a dial gauge is fixed in the middle section region of cylinder processing length L, measurement contact is contacted with drum surface, revolved
The traction mechanism of press bed axially stops, and cylinder is only made to slowly run, and percentage meter reading is observed, using sign pen in drum surface
Mark the maximum position of percentage meter reading；
S202, dial gauge is moved axially back and forth along cylinder to different location, and repeat step S201 until in drum surface
Mark multiple maximum mark points of percentage meter reading；
S203, mark point connected with sign pen it is in alignment, last rotating cylinder to connecting line and measuring mechanism
Measure contact alignment, the circumferential leading zero's for measuring initial position as barrel body rotation angle；
The determination of the axially measured initial position of cylinder:
S204, the end that axially measured initial position is cylinder processing length L, are driven by the traction mechanism of spinning lathe
Cylinder is axially moved, until the end of cylinder processing length L is aligned with the measurement contact of measuring mechanism, axially measured initial position
Reference zero as all measurement point axial positions；
It preferably, is 4~5 in the number that drum surface marks the maximum mark point of percentage meter reading in step S202.
In a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described above, it is preferable that the step
The specific specific steps of S3 are as follows:
S301, it is positioned apart from multiple sections to be measured by the software on measuring mechanism and determines two neighboring section to be measured
Spacing and measurement point quantity, measurement spacing be cylinder on two neighboring section to be measured axial distance；
Preferably, in cylinder processing length L all sections to be measured along axial equidistantly distributed, measurement point quantity be it is single to
The quantity of section up-sampling point is surveyed, the measurement point on single section to be measured is circumferentially to be uniformly distributed along section.
In a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described above, it is preferable that the step
S4 specifically includes the following steps:
The survey of S401, cylinder are axially moved respectively and rotary motion determines step S2 initial position and measuring mechanism
Contact alignment is measured, starting on-line measurement mechanism starts to measure；
S402, measurement contact are contacted with cylinder lateral wall, by measuring the sensor feedback measurement point disposed on contact
Location information.
In a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described above, it is preferable that the step S5
Specifically includes the following steps:
S501, the outer diameter D for determining cylinder2:
Using audigage by the wall thickness value of measurement request measurement cylinder different location, average wall thickness t is obtained, considers rotation
Pressing formation terminates the gap ε of rear cylinder body and core model, cylinder internal diameter D1Usually the diameter D of core model adds two times of gap width ε, i.e.,
The outer diameter D of cylinder2=D1+ 2t=D+2 ε+2t；
S502, the deviation value △ for measuring the spindle centerline of kernel of section and spinning lathe is determined:
The calculating of the spindle centerline deviation value △ of measurement kernel of section and spinning lathe needs to call on the measurement section
The location information of starting point, information recording method formula be the measurement point to spinning lathe spindle centerline distance r, deviation value △
=r-D2/2；
S503, amendment measurement point location information r1:
r2 1=r2+△2- 2r △ cos α, wherein
r1For measurement point to the distance of kernel of section where it,
α is and cylinder is by circumferentially measuring the angle turned over when initial position turns to measurement point contact measurement contact；
S504, by revised location information on the software platform of measuring mechanism r1Cylinder is obtained after interpolation, fitting
True geometric profile, then the nominal contour of the actual profile of cylinder and cylinder is compared, finally intuitively show that cylinder is true
Circularity and straightness.
In a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described above, it is preferable that the step
Nominal contour in S5 is with the outer profile of ideal workpiece constructed by barrel diameter and length.
It is described in the measuring mechanism of a kind of any of the above-described cylinder spinning with tension circularity and straightness On-line Measuring Method
Measuring mechanism includes:
Pedestal, the pedestal are fixed on the lathe bed of spinning lathe；
Guide rail, the guide rail are arranged along the length direction of the pedestal；
Sliding block, the sliding block are fastened on the guide rail, and the sliding block is slided along the length direction of the guide rail；
Contact is measured, the measurement contact is arranged on sliding block；
Stroke spring, one end of the stroke spring is fixed on the base, and the other end of the stroke spring connects
On the non-measured end of the measurement contact.
In a kind of cylinder spinning with tension circularity and straightness on-line measurement mechanism as described above, it is preferable that the spinning machine
Bed include:
Length feed control mechanism, the length feed control mechanism include that first longitudinal direction feed control mechanism and second are vertical
To feed control mechanism, the first longitudinal direction feed control mechanism and the second longitudinal feed are given to control mechanism is located at lathe bed two
End, for controlling the longitudinal movement of cylinder；
Transverse feed mechanism, the transverse feed mechanism are located at the middle part of lathe bed, for driving cylinder to carry out transverse shifting；
Spindle box, the spindle box include the first spindle box and the second spindle box, and first spindle box is located at described the
On lathe bed between one length feed control mechanism and the transverse feed mechanism, second spindle box be located at second longitudinal direction into
To on the lathe bed between control mechanism and the transverse feed mechanism, for realizing the axial movement and rotation of ultra-long barrel；
Measuring mechanism, the measuring mechanism are mounted on transverse feed mechanism.
In a kind of cylinder spinning with tension circularity and straightness on-line measurement mechanism as described above, it is preferable that the transverse direction into
To spinning roller is additionally provided in mechanism, for being plastically deformed to spinning blank；
The axis of first spindle box, the second spindle box and spinning blank is respectively positioned on the spindle centerline of spinning lathe
On.
Compared with the immediate prior art, technical solution provided by the invention has following excellent effect:
(1) measuring mechanism of the invention has the measurement contact of stroke spring, increases the measurement range of measuring mechanism, energy
Enough meet the on-line checking of different-diameter size specification cylinder product, the length dimension of product to be measured is unrestricted, enhances
The adaptability of this measuring mechanism.
(2) present invention in terms of data processing, fully considered ultra-long barrel spinning with tension forming after it is recurrent because
The case where being bent and workpiece middle section caused to deviate machine tool chief axis center line, so that measurement result is more accurate and reliable.
(3) present invention has the characteristics that design and manufacturing cost are low, can make full use of existing without configuring transmission system
The axial feed and rotation control mechanism of lathe realize the accurate numerical control of axial, the circumferential measurement position to large caliber ultra-long cylinder.
(4) on-line measurement mechanism of the invention can utilize the loading shape after large caliber ultra-long cylinder rotary pressure deformation
State realizes the instant detection of processing dimension, and Real-time Feedback test result, when avoiding carrying out off-line measurement after workpiece discharging, because of two
The problems such as resetting caused by secondary clamping is inaccurate, measurement error is big, low efficiency, it is automatic can be well adapted for short cycle, height
The engineering of change degree produces.
Detailed description of the invention
Fig. 1 is the flow diagram of the measurement method of the embodiment of the present invention；
Fig. 2 is the specific flow chart of the step S1 of Fig. 1；
Fig. 3 is the specific flow chart of the step S2 of Fig. 1；
Fig. 4 is the specific flow chart of the step S4 of Fig. 1；
Fig. 5 is the specific flow chart of the step S5 of Fig. 1；
Fig. 6 is the overall schematic of the spinning lathe of the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the measuring mechanism of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the spinning lathe of the embodiment of the present invention；
Fig. 9 is the schematic diagram of the ultra-long barrel of the embodiment of the present invention；
Figure 10 is measured value r, the correction value r of the embodiment of the present invention1With the trigonometric function relation schematic diagram of deviation value △；
Figure 11 is that the ultra-long barrel of the embodiment of the present invention measures kernel of section and machine tool chief axis center line deviation value △ illustrates
Figure.
In figure: 1, first longitudinal direction feed control mechanism；2, longitudinal leadscrew A；3, longitudinal leadscrew B；4, floating core die pull rod；5,
First spindle box；6, the first connector；7, supporting mechanism；8, spinning blank；9, spinning roller；10, transverse feed mechanism；11, second
Connector；12, the second spindle box；13, lathe bed；14, second longitudinal direction feed control mechanism；15, measuring mechanism；16, machine tool chief axis
Center line；17, guide rail；18, stroke spring；19, sliding block；20, contact is measured；21, pedestal.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff's every other embodiment obtained, shall fall within the protection scope of the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention be can be combined with each other.
Embodiment 1
As shown in figs. 1-11, the present invention provides a kind of cylinder spinning with tension circularity and straightness On-line Measuring Methods, such as
Shown in Fig. 1-5, measurement method includes the following steps:
S1, cylinder is sent at measuring mechanism 15 by the length feed control mechanism of spinning lathe, and to measuring machine
The stroke of structure 15 carries out coarse adjustment, concrete operation step are as follows:
S101, ensure that cylinder completes the mould pressing of all passages, and cylinder is in loading condition, loading herein refers to
Without unloading cylinder from spinning lathe, directly cylinder is transported by length feed control mechanism after mould pressing
At measuring mechanism 15 on to transverse feed mechanism 10, so " on-line measurement " alleged by the present invention, that is, be not necessarily to from spinning machine
Then cylinder is sent to survey by the length feed control mechanism of spinning lathe by the meaning for unloading on bed and directly measuring
At measuring mechanism 15, measuring mechanism 15 is installed on transverse feed mechanism 10；
S102, touching is measured according to the size adjusting measuring mechanism 15 after the FINAL APPEARANCE size i.e. mould pressing of cylinder
First 20 position makes to measure the lateral wall that contact 20 is higher than cylinder, to reserve certain adjustment space to coarse adjustment, completes to survey
The coarse adjustment of 15 stroke of measuring mechanism.
S2, the initial position for determining the measurement of cylinder circumferential and axial, specifically includes the following steps:
Cylinder circumferentially measures the determination of initial position:
S201, a dial gauge is fixed in the middle section region of cylinder processing length L, measurement contact 20 is contacted with drum surface,
The traction mechanism of spinning lathe axially stops being that longitudinal feed mechanism stops, and cylinder is only made to slowly run, and observes percentage meter reading,
The maximum position of percentage meter reading is marked in drum surface using sign pen；
S202, dial gauge is moved axially back and forth along cylinder to different location, and repeat step S201 until in drum surface
Mark multiple maximum mark points of percentage meter reading, the number that drum surface marks the maximum mark point of percentage meter reading can also
It is multiple to mark, but measurement efficiency can be reduced after having counted more, very little accuracy of counting is difficult to ensure again, from actual measurement
The angle of effect is set out, and the points marked in the present embodiment are 4~5.
S203, mark point connected with sign pen in alignment, theoretically the straight line should be a plain line of cylinder, can
The excessive mark point exclusion for deviateing connecting line not to be made reference on this basis, the last rotating cylinder under the drive of spindle box
It is aligned to connecting line with the measurement contact 20 of measuring mechanism 15, the circumferential starting zero for measuring initial position as barrel body rotation angle
Point.
The determination of the axially measured initial position of cylinder:
S204, the end that axially measured initial position is cylinder processing length L, it is i.e. vertical by the traction mechanism of spinning lathe
Cylinder is driven to be axially moved to feed mechanism, until the end of cylinder processing length L and the measurement contact 20 of measuring mechanism 15 are right
Together, reference zero of the axially measured initial position as all measurement point axial positions.
S3, multiple sections to be measured are set along the axial direction interval of cylinder processing length, and determine each section to be measured
The position for the measurement point being distributed in circumferential direction and the quantity of measurement point.
S301, the spacing and measurement point quantity that section to be measured is arranged by the software on measuring mechanism 15, measurement spacing are
The axial distance in two neighboring section to be measured on cylinder.
It is measured for the ease of measuring all sections to be measured in default cylinder processing length L along axial equidistantly distributed
Point quantity is the quantity of single section to be measured up-sampling point, and the measurement point on single section to be measured is circumferential uniformly point along section
Cloth.
S4, in the processing length of cylinder, the measurement contact 20 of measuring mechanism 15 is aligned each section to be measured one by one, read
The location information of measurement point on each section is taken, specifically includes the following steps:
The initial position that S401, cylinder are axially moved respectively and rotary motion determines step S2 and measuring mechanism 15
It measures contact 20 to be aligned, starting on-line measurement mechanism 15 starts to measure.
S402, measurement contact 20 are contacted with cylinder lateral wall, are measured by the sensor feedback disposed on measurement contact 20
The location information of point, measures on contact 20 that install be position sensor, for obtaining the data of the measurement point on cylinder.
The location information of measurement point on section to be measured each of is read in S5, amendment, obtains the actual profile of cylinder, then by cylinder
The actual profile of body and the nominal contour of cylinder compare, and finally intuitively show the true circularity of cylinder and straightness, specifically
Operating procedure are as follows:
S501, the outer diameter D for determining cylinder2:
As shown in figure 9, obtaining mean wall by the wall thickness value of measurement request measurement cylinder different location using audigage
Thick t considers that mould pressing terminates the gap ε, cylinder internal diameter D of rear cylinder body and core model1Usually the diameter D of core model is plus two times
Gap width ε, the i.e. outer diameter D of cylinder2=D1+ 2t=D+2 ε+2t, wherein ε usually takes 0.4-0.6mm according to knowhow.
S502, the deviation value △ for measuring the spindle centerline of kernel of section and spinning lathe is determined:
As shown in figure 11, the calculating for measuring the spindle centerline deviation value △ of kernel of section and spinning lathe, which needs to call, adjusts
With the location information of starting point on the measurement section, information recording method formula is spindle centerline of the measurement point to spinning lathe
Distance r, deviation value △=r-D2/2。
S503, amendment measurement point location information r1:
As shown in Figure 10, r2 1=r2+△2- 2r △ cos α, wherein
r1For measurement point to the distance of kernel of section where it,
α is and cylinder is by circumferentially measuring the angle turned over when initial position turns to measurement point contact measurement contact 20.
S504, by revised location information on the software platform of measuring mechanism 15 r1Cylinder is obtained after interpolation, fitting
True geometric profile, then the nominal contour of the actual profile of cylinder and cylinder is compared, finally intuitively shows that cylinder is true
Real circularity and straightness.
Nominal contour among the above refers to the outer profile of ideal workpiece constructed by barrel diameter and length, that is, marks
The outer profile of quasi- workpiece, the reference point for providing standard are compared.
The measuring mechanism 15 that above-mentioned measurement method is applied to includes:
Pedestal 21, pedestal 21 are fixed on the lathe bed 13 of spinning lathe.
Guide rail 17, guide rail 17 are arranged along the length direction of pedestal 21.
Sliding block 19, sliding block 19 are fastened on guide rail 17, and sliding block 19 is slided along the length direction of guide rail 17.
Contact 20 is measured, measurement contact 20 is arranged on sliding block 19, measures and installs position sensor on contact 20, is used for
Obtain the location information of measurement point.
Stroke spring 18, one end of stroke spring 18 are fixed on pedestal 21, and the other end of stroke spring 18 is connected to survey
On the non-measured end for measuring contact 20, stroke spring 18 can increase the entire measurement stroke of measuring mechanism 15.
Wherein, spinning lathe includes:
Length feed control mechanism, length feed control mechanism include first longitudinal direction feed control mechanism 1 and second longitudinal direction
Feed control mechanism 14, first longitudinal direction feed control mechanism 1 and second longitudinal direction feed control mechanism 14 are located at lathe bed 13
Both ends, for controlling the longitudinal movement of cylinder, first longitudinal direction feed control mechanism 1 and second longitudinal direction feed control mechanism 14 are logical
It crosses longitudinal leadscrew to link respectively with the first spindle box 5 and the second spindle box 12, first longitudinal direction feed control mechanism 1 passes through longitudinal silk
Thick stick A2 and longitudinal leadscrew B3 and the first spindle box 5 link, and same second longitudinal direction feed control mechanism 14 is also to pass through another set
Vertical A2 links to lead screw and longitudinal leadscrew B3 and the second spindle box 12, and length feed control mechanism drives spindle box by lead screw
Axial movement, and then drive cylinder axial movement.
Transverse feed mechanism 10, transverse feed mechanism 10 are located at the middle part of lathe bed 13, for driving spinning roller to carry out lateral shifting
It is dynamic.
Spindle box, spindle box include the first spindle box 5 and the second spindle box 12, the first spindle box 5 be located at first longitudinal direction into
To on the lathe bed 13 between control mechanism 1 and transverse feed mechanism 10, the second spindle box 12 is located at second longitudinal direction feeding control machine
On lathe bed 13 between structure 14 and transverse feed mechanism 10, for driving the axial movement of cylinder, the bottom of spindle box is fastened on
On longitudinal rail on the lathe bed 13 of spinning lathe, spindle box can be vertically moved in the lathe bed 13 of spinning lathe；Main shaft
Rotary shaft on case is that cylinder links together by connector and spinning blank 8, connector can by cylinder and rotary shaft into
Row synchronizes fixation, and for the first spindle box 5 by the fixation synchronous with one end of spinning blank 8 of the first connector 6, the second spindle box 12 is logical
Cross the fixation synchronous with the other end of spinning blank 8 of the second connector 11.
Spinning blank 8 is fixed on the lathe bed 13 of spinning lathe by supporting mechanism 7, and wherein supporting mechanism 7 can use
Support column, support column are equipped with swivel bearing, sagging caused by spinning blank 8 is self-possessed for offsetting.
Floating core die pull rod 4 is additionally provided between length feed control mechanism and spindle box, for cooperating spinning roller to complete rotation
The Plastic Forming of dabbing base 8.
Measuring mechanism 15, measuring mechanism 15 are mounted on transverse feed mechanism 10.
Spinning roller 9 is additionally provided on transverse feed mechanism 10, spinning roller 9 can carry out rotation extruding to spinning blank 8, thus to rotation
Dabbing base 8 is plastically deformed.
The axis of first spindle box 5, the second spindle box 12 and spinning blank 8 is respectively positioned on the spindle centerline of spinning lathe
On.
Embodiment 2
Illustrate this measurement method in the present embodiment by the cylinder of specific length, on-line measurement cylinder is as shown in Figure 9
Ultra-long barrel spinning with tension part, be 304 stainless steels, processing length L be 8000mm, internal diameter D1It is for 518mm, wall thickness t
5mm, the outer diameter D of ultra-long barrel2For D2=D1+ 2t=D+2 ε+2t=529.2mm.
On-line measurement step is as shown in Figs. 1-5, is realized by following steps:
1, the coarse adjustment of on-line measurement mechanism 15:
On-line checking mechanism is as shown in fig. 7, ultra-long barrel is real by the axial feed and rotation control mechanism of spinning lathe
The adjustment of existing measurement position.According to the final outer diameter D of ultra-long barrel2=528mm manually adjusts 15 contact of measuring mechanism
Position is close to the outer surface of ultra-long barrel.
2, measurement initial position is determined:
A dial gauge, measurement contact 20 and overlength cylinder are fixed in the middle section region of ultra-long barrel processing length L=8000mm
External surface contact, ultra-long barrel work slowly runs, in the process using sign pen in ultra-long barrel surface markers dial gauge
Read maximum position.Hereafter by dial gauge along ultra-long barrel axial translation, and above-mentioned markers step is repeated, until marking 4
~5 maximum mark points of percentage meter reading are connected mark point with sign pen in alignment.Finally rotate ultra-long barrel extremely
Connecting line is aligned with the measurement contact 20 of on-line checking mechanism, circumferential to measure initial position rising as ultra-long barrel rotational angle
Beginning zero point.
Axially measured initial position is the end of ultra-long barrel processing length, transports ultra-long barrel axially by spinning lathe
It moves to the end of processing length and is aligned with the measurement contact 20 of on-line checking mechanism, axially measured initial position is as all measurements
The reference zero of point axial position.
3, the location information of measurement point is read
It is along the spacing that section to be measured is arranged in its axial direction in ultra-long barrel processing length L=8000mm by software platform
The measurement point quantity being distributed in 400mm and each cross-sectional periphery is 10 (corresponding serial numbers 1,2,3 ... ..., 10), same section
Measurement point on face is defaulted as circumferentially being uniformly distributed along section.After clicking " starting to measure " option, detection device is read one by one
The location information for all measurement points on section to be measured of beginning, including ultra-long barrel by circumferentially measure initial position turn to measurement point with
The distance r of the angle [alpha] turned over when contact 20 contacts and measurement point to machine tool chief axis center line 16 is measured, as shown in Figure 9；It rises
Begin after the completion of section gauge to be measured, it is right to next section to be measured and measurement contact 20 that ultra-long barrel is axially moved by traction mechanism
Together, and the reading of measurement point location information on the section is subsequently completed；Program will repeat this process, until on all sections to be measured
Measurement point location information reading finish.
4, the location information of measurement point is corrected:
The amendment of measurement point location information is successively carried out by different cross section.System is firstly the need of according on each measurement section
Originate measurement point location information (starting measurement point to machine tool chief axis center line 16 distance r) determine the measurement kernel of section with
The deviation value △ of machine tool chief axis center line 16, as shown in Figure 10, deviation value △ is usually △=r-D2/ 2=r-264mm.
Modified measurement point location information r1It should be the distance of measurement point to kernel of section where it, rather than measurement point is to machine
The distance r of the main spindle centerline of bed, turns to measurement point contact measurement contact 20 by circumferentially measuring initial position with ultra-long barrel
When the angle [alpha] that turns over, the distance r of measurement point to machine tool chief axis center line 16, and measurement kernel of section and machine tool chief axis is inclined
Meet the cosine law from value △, as shown in figure 9, formula r can be passed through2 1=r2+△2Modified measurement is calculated in -2r △ cos α
Dot position information r1。
5, software backstage is fitted the geological information of spinning part:
On the basis of step 4 acquisition measurement point revised location information, the software backstage of on-line detecting system will be automatic
It is fitted the true geometric information of ultra-long barrel, compares actual profile and nominal contour, schematic diagram is as shown in figure 11, then accurate meter
The circularity of any position and the straightness of the position to axially measured initial position on ultra-long barrel is calculated (actually to generally select aobvious
Show the straightness of product overall length), the measurement point sequence in the axial coordinate value and the section in section to be measured is inputted by software interface
Number it can call corresponding measurement result and be shown on software interface, meanwhile, measurement result can be compared with desired value, with
The intuitive dimensional accuracy for showing product.
From the above, it can be seen that measurement method of the invention is without unloading cylinder of the spinning blank after mould pressing
Increased maloperation, energy when carrying, and measured immediately directly on spinning lathe, therefore reducing secondary unloading and load
Enough accuracy for promoting measurement, meanwhile, the range of measuring mechanism can also be increased by measuring the stroke spring on contact, deviation value
Amendment helps to promote the accuracy of measurement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Mind and principle within, any modification, equivalent replacement, improvement and so on, accompanying claims protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method, which is characterized in that the measurement method includes such as
Lower step:
S1, cylinder is sent at measuring mechanism by the length feed control mechanism of spinning lathe, and to the row of measuring mechanism
Cheng Jinhang coarse adjustment；
S2, the initial position for determining the measurement of cylinder circumferential and axial；
S3, multiple sections to be measured are set along the axial direction interval of cylinder, and determines and is distributed in each section circumferential direction to be measured
The position of measurement point and the quantity of measurement point；
S4, in the processing length of cylinder, the measurement contact of measuring mechanism is aligned each section to be measured one by one, reads each cut
The location information of measurement point on face；
The location information of measurement point on section to be measured each of is read in S5, amendment, obtains the actual profile of cylinder, then by cylinder
The nominal contour of actual profile and cylinder compares, and finally intuitively shows the true circularity of cylinder and straightness.
2. a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described in claim 1, which is characterized in that described
Step S1 specifically includes the following steps:
S101, ensure that cylinder completes the mould pressing of all passages, and cylinder is in loading condition, and cylinder is then passed through spinning
The length feed control mechanism of lathe is sent at measuring mechanism, and measuring mechanism is mounted on spinning lathe；
S102, the position that contact is measured according to the FINAL APPEARANCE size adjusting measuring mechanism of cylinder make to measure contact higher than cylinder
Lateral wall, complete measuring mechanism stroke coarse adjustment.
3. a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described in claim 1, which is characterized in that described
Step S2 specifically includes the determination of the initial position of the circumferential and axial of cylinder, specifically includes the following steps:
Cylinder circumferentially measures the determination of initial position:
S201, a dial gauge is fixed in the middle section region of cylinder processing length L, measurement contact is contacted with drum surface, spinning machine
The traction mechanism of bed axially stops, and cylinder is only made to slowly run, and observes percentage meter reading, is marked using sign pen in drum surface
The maximum position of percentage meter reading；
S202, dial gauge is moved axially back and forth along cylinder to different location, and repeat step S201 until marking in drum surface
Multiple maximum mark points of percentage meter reading；
S203, mark point is connected in alignment, the measurement of last rotating cylinder to connecting line and measuring mechanism with sign pen
Contact alignment, the circumferential leading zero's for measuring initial position as barrel body rotation angle；The axially measured initial position of cylinder is really
It is fixed:
S204, the end that axially measured initial position is cylinder processing length L drive cylinder by the traction mechanism of spinning lathe
It is axially moved, until the end of cylinder processing length L is aligned with the measurement contact of measuring mechanism, axially measured initial position conduct
The reference zero of all measurement point axial positions；
It preferably, is 4~5 in the number that drum surface marks the maximum mark point of percentage meter reading in step S202.
4. a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described in claim 1, which is characterized in that described
The specific specific steps of step S3 are as follows:
S301, it is positioned apart from by the software on measuring mechanism between multiple sections to be measured and determining two neighboring section to be measured
Away from and measurement point quantity, measurement spacing be cylinder on two neighboring section to be measured axial distance；
Preferably, along axial equidistantly distributed, measurement point quantity is single to be measured section in all sections to be measured in cylinder processing length L
Face up-samples the quantity of point, and the measurement point on single section to be measured is circumferentially to be uniformly distributed along section.
5. a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described in claim 1, which is characterized in that described
Step S4 specifically includes the following steps:
The measurement of S401, cylinder are axially moved respectively and rotary motion determines step S2 initial position and measuring mechanism is touched
Head alignment, starting on-line measurement mechanism start to measure；
S402, measurement contact are contacted with cylinder lateral wall, by the position of the sensor feedback measurement point disposed on measurement contact
Information.
6. a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described in claim 1, which is characterized in that described
Step S5 specifically includes the following steps:
S501, the outer diameter D for determining cylinder2:
Using audigage by the wall thickness value of measurement request measurement cylinder different location, average wall thickness t is obtained, considers to be spun into
Shape terminates the gap ε of rear cylinder body and core model, cylinder internal diameter D1Usually the diameter D of core model adds two times of gap width ε, i.e. cylinder
Outer diameter D2=D1+ 2t=D+2 ε+2t；
S502, the deviation value △ for measuring the spindle centerline of kernel of section and spinning lathe is determined:
The calculating of the spindle centerline deviation value △ of measurement kernel of section and spinning lathe needs to call to be originated on the measurement section
Point location information, information recording method formula be the measurement point to spinning lathe spindle centerline distance r, deviation value △=r-
D2/2；
S503, amendment measurement point location information r1:
r2 1=r2+△2- 2r △ cos α, wherein
r1For measurement point to the distance of kernel of section where it,
α is and cylinder is by circumferentially measuring the angle turned over when initial position turns to measurement point contact measurement contact；
S504, by revised location information r1The true several of cylinder are obtained after interpolation, fitting on the software platform of measuring mechanism
What profile, then the nominal contour of the actual profile of cylinder and cylinder is compared, finally intuitively show the true circularity of cylinder
And straightness.
7. a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described in claim 1, which is characterized in that described
Nominal contour in step S5 is with the outer profile of ideal workpiece constructed by barrel diameter and length.
8. the measuring machine of a kind of cylinder spinning with tension circularity and straightness On-line Measuring Method as described in claim 1-7 is any
Structure, which is characterized in that the measuring mechanism includes:
Pedestal, the pedestal are fixed on the lathe bed of spinning lathe；
Guide rail, the guide rail are arranged along the length direction of the pedestal；
Sliding block, the sliding block are fastened on the guide rail, and the sliding block is slided along the length direction of the guide rail；
Contact is measured, the measurement contact is arranged on sliding block；
Stroke spring, one end of the stroke spring is fixed on the base, and the other end of the stroke spring is connected to institute
On the non-measured end for stating measurement contact.
9. a kind of cylinder spinning with tension circularity and straightness on-line measurement mechanism as claimed in claim 8, which is characterized in that described
Spinning lathe includes:
Length feed control mechanism, the length feed control mechanism include first longitudinal direction feed control mechanism and second longitudinal direction control
Mechanism processed, the first longitudinal direction control mechanism and second longitudinal direction control mechanism are located at the both ends of lathe bed, for controlling cylinder
Longitudinal movement；
Transverse feed mechanism, the transverse feed mechanism are located at the middle part of lathe bed, for driving spinning roller to carry out transverse shifting；
Spindle box, the spindle box include the first spindle box and the second spindle box, and it is vertical that first spindle box is located at described first
To on the lathe bed between feed control mechanism and the transverse feed mechanism, second spindle box is located at second longitudinal direction feeding control
On lathe bed between mechanism processed and the transverse feed mechanism, for realizing the axial movement and rotation of cylinder；
Measuring mechanism, the measuring mechanism are mounted on transverse feed mechanism.
10. a kind of cylinder spinning with tension circularity and straightness on-line measurement mechanism as claimed in claim 9, which is characterized in that institute
It states and is additionally provided with spinning roller on transverse feed mechanism, for being plastically deformed to spinning blank；
The axis of first spindle box, the second spindle box and spinning blank is respectively positioned on the spindle centerline of spinning lathe.
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