CN107127225B - A kind of cage guide automatic flattening method based on experts database technology - Google Patents
A kind of cage guide automatic flattening method based on experts database technology Download PDFInfo
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- CN107127225B CN107127225B CN201710334625.5A CN201710334625A CN107127225B CN 107127225 B CN107127225 B CN 107127225B CN 201710334625 A CN201710334625 A CN 201710334625A CN 107127225 B CN107127225 B CN 107127225B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 238000005452 bending Methods 0.000 claims abstract description 99
- 238000012797 qualification Methods 0.000 claims abstract description 10
- 238000007405 data analysis Methods 0.000 claims abstract description 7
- 238000010606 normalization Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000013001 point bending Methods 0.000 description 8
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- 230000004438 eyesight Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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Abstract
The present invention discloses a kind of cage guide automatic flattening method based on experts database technology, and successful empirical data is manually aligned first with early period and constitutes experts database；Then the straightness information for acquiring guide rail, writes music line according to gathered data fitting a straight line, and carries out data analysis to the curve of fitting using traversal Extremal point algorithm and choose pressure point reference point；It is found out then according to guide rail linearity qualification index and does not conform to lattice point, final pressure point is determined from pressure point reference point；It readjusts after determining pressure point, further according to the maximized principle of span, position of the fulcrum is symmetrically determined on pressure point both sides；Finally the bending value of pressure point and span are normalized, corresponding volume under pressure is matched in experts database according to the bending value of the pressure point after normalization and span to align guide rail, if the indices after aligning are met the requirements, then each achievement data is saved in database, is otherwise aligned next time.Present invention reduces the costs of labor of production, improve the yields of producing line.
Description
Technical field
The invention belongs to automatic detection field, more particularly to a kind of cage guide automatic flattening based on experts database technology
Method.
Background technology
With the propulsion of the high stratification in house, elevator is while increasingly walking-replacing tool essential as people, peace
Quan Xing, comfort also become focus of people's attention.Entire elevator device is mainly made of eight parts, including：Traction system,
Guidance system, car, door system, weight balancing system, electric drive system, electric control system and safety system.Electricity
Terraced guide rail is the important component of elevator guidance system, is the guider that elevator up-down is sailed, not only guides elevator
Up and down, and the comfortableness and security of elevator ride are decide, if guide rail surface out-of-flatness, when elevator can be caused to run
Horizontal jitter simultaneously generates noise, seriously affects safety and the comfort level of elevator operation.As shown in Fig. 1, the common guide rail of elevator
It is " T " font guide rail, the length of guide rail is generally 5 meters.
According to statistics, the speed of super high speed elevator has reached 18m/s in the world now.The development that elevator runs high speed is even more pair
More stringent requirements are proposed for the glacing flatness of guide rail surface, excites the demand to high-precision guide rail.
Traditional straightening of elevator guided technology relies primarily on artificial hydraulic pressure aligning mode and is aligned, due to the eyesight of people
There is uncertainty with judgment so that align in a traditional way, precision reach just can not carry out after certain small range it is more smart
True aligning.And manually for aligning without normalization, the depression distance of hydraulic cylinder is fixed, causes manually to align without one
A standard cannot achieve standardization so that traditional aligning mode cannot be satisfied the demand of elevator enterprises.
In recent years with the development of computer technology, we can utilize computer software design one automate, is high-precision
Straightening of elevator guided system is spent, and is realized the function of aligning algorithm by program language.The development of photoelectric technology, Laser Measuring
Range and precision away from sensor have very big improvement, and under same precision conditions, the range of sensor can amplify number
Times, provide physical basis for the high-precision aligning of guide rail.
Invention content
Technical problem solved by the invention be to provide it is a kind of to cage guide carry out straightness automatically detection and from
Dynamic method for aligning, can fast and accurately align cage guide, improve the product yield of manufacturing enterprise.
Realize that the technical solution of the object of the invention is：A kind of cage guide automatic flattening side based on experts database technology
Method includes the following steps：
Step 1：Successful empirical data is manually aligned using early period, be normalized and analysis be bent value and
Corresponding volume under pressure, constitutes experts database；
Step 2：The straightness information for acquiring guide rail is write music line according to gathered data fitting a straight line；
Step 3：Data analysis is carried out to the curve of fitting using traversal Extremal point algorithm, chooses pressure point reference point；
Step 4：It is found out according to guide rail linearity qualification index and does not conform to lattice point, the position of lattice point is not conformed to from pressure point according to index
Final pressure point is determined in reference point；
Step 5：Readjust after determining pressure point, further according to the maximized principle of span, pressure point both sides symmetrically really
Determine position of the fulcrum；
Step 6：After determining pressure point and fulcrum, the bending value and span of pressure point are normalized, according to normalizing
The bending value and span of pressure point after change match corresponding volume under pressure in experts database, with the volume under pressure as briquetting motor
Displacement guide rail is aligned；
Step 7：Linearity surveying is carried out to guide rail again, if the indices of guide rail are met the requirements, by each of guide rail
Achievement data is saved in database, if guide rail index is unqualified, return to step 3 is aligned next time.
Compared with prior art, the present invention its remarkable advantage is：1) present invention breaches for a long time manually aligning nothing
The difficult point for the transfer point high-precision aligning that method standardization, common automatic flattening machine can not carry out is reduced by automated production
The cost of labor of manufacturing enterprise improves the yields of whole producing line, and elevator industry standard is pushed to develop to more high-precision direction,
Not only in terms of cage guide, can have broad application prospects in the production and living that other need high-precision guide rail.2) this hair
Bright accurately calculating with computer, can accurately align so that guide rail or so for knee smaller above cage guide
Bending value and every meter of bending value can be remedied within 0.15mm at 500mm, this is the very indiscernible bending range of human eye, and
Human hand aligning range very rambunctious, due to bending value very little, it is easy to generate overvoltage so that guide rail is aligned back and forth, Wu Fada
Mark can control span size when aligning guide rail with experts database system, be determined according to the size of pressure point bending value and span
Go out one and accurately push magnitude so that guide rail can carry out accurately aligning to meet quality index, substantially increase elevator
The safety of car operation and comfort.
Description of the drawings
Fig. 1 is the workpiece figure of cage guide.
Fig. 2 is flow chart of the method for the present invention.
Fig. 3 is the collected unqualified movement curve figure of the present invention.
Fig. 4 is branch pressure point adjustable strategies flow chart of the present invention.
Fig. 5 is curve graph up to standard after guide rail of the present invention aligning.
Specific implementation mode
A kind of cage guide automatic flattening method based on experts database technology, includes the following steps：
Step 1：Successful empirical data is manually aligned using early period, and place is normalized to span and pressure point bending value
Reason determines span, pressure point bending value and corresponding volume under pressure, constitutes experts database；Stride values are normalized specific
Method is：Span is set into span as 1000mm more than the unified of 1000mm, the span between 800mm to 1000mm is normalized to
Span between 800mm, 600mm to 800mm is normalized to 600mm, and the span between 0mm to 600mm is normalized to 400mm.
The specific method that pressure point bending value is normalized is：It will be greater than in the case of 1000mm spans and 800mm spans
Bending value equal to 2mm is uniformly normalized to 2mm, will be greater than the bending value equal to 1.5mm less than 2mm and is uniformly normalized to
1.5mm, the bending value more than or equal to 1.3mm less than 1.5mm are uniformly normalized to 1.3mm, are more than or equal to 1mm less than 1.3mm's
Bending value is uniformly normalized to 1mm, and the bending value more than or equal to 0.8mm less than 1mm is uniformly normalized to 0.8mm, is less than 0.8mm
Bending value be uniformly normalized to 0.5mm；It will be greater than the bending value equal to 1mm in the case of 600mm spans and 400mm spans
It is uniformly normalized to 1mm, the bending value equal to 0.8mm less than 1mm is will be greater than and is uniformly normalized to 0.8mm, be more than or equal to
Bending values of the 0.6mm less than 0.8mm is uniformly normalized to 0.6mm, and the bending value more than or equal to 0.4 less than 0.6mm unifies normalizing
0.4mm is turned to, the bending value more than or equal to 0.3mm less than 0.4mm is uniformly normalized to 0.3mm, is less than the bending primary system of 0.3mm
One is normalized to 0.2mm.
Step 2：The straightness information for acquiring guide rail is write music line according to gathered data fitting a straight line, and fitting a straight line is write music line
Specific method be：
Step 2.1：The guide rail linearity information of laser range finder detection is acquired every 10 milliseconds, i.e. laser range finder senses
Device is the distance between to guide rail；
Step 2.2：Before drawing straightness curve, the transverse and longitudinal coordinate ratio of the last one point is calculated, according to this ratio pair
All point progress move up or down adjustment accordingly；First is collected and is used as origin；
Step 2.3：Using first point as origin, the data after adjustment are fitted, and draw curve.
Step 3：Data analysis is carried out to the curve of fitting using traversal Extremal point algorithm, pressure point reference point is chosen, chooses pressure
Point reference point specific method be：
Step 3.1：Since the 21st point of curve, compare the ordinate size of current point and front and back each 20 points, if than
The ordinate absolute value of 20 points of the right and left is all big, then judges otherwise the point can cannot function as the reference point of pressure point
The reference point of pressure point；
Step 3.2：According to the method for step 2.1, traversal is except first 20 and rear 20 all the points, from whole guide rail straight line
Writing music can be as the reference point of pressure point in line；
Step 3.3：Remove the point that bending value is less than minimum precision from pressure point reference point.
Step 4：It is found out according to guide rail linearity qualification index and does not conform to lattice point, joined from pressure point according to the position of unqualified index
Final pressure point is determined in examination point；
Step 4.1：Setting guide rail linearity qualification index, including whole long bending value, every meter of bending value, left and right 500mm are curved
Song value and B/A values；
Step 4.2：Each index actual value is calculated, the pressure point reference point before and after unqualified index location in 20 points is chosen and makees
For pressure point：First by one priority of these setup measures, whole long bending value priority is set as highest, it is curved at the 500mm of left and right
Bent value is taken second place, and then considers B/A values, every meter of qualified index is last, and the high first aligning of priority makes it meet the requirements；If whole length is curved
Song value is unqualified, then is aligned using pressure point reference point as pressure point；If whole long qualified, left and right 500mm is unqualified, then does not examine
Consider pressure point reference point position, directly using or so 500mm as pressure point；If whole long qualified, left and right 500mm is qualified, and B/A does not conform to
B/A is not then conformed to the position of lattice point as pressure point by lattice；If whole length, left and right 500mm, B/A values are qualified, and every meter unqualified, then
As pressure point, the absolute value for pressure point its corresponding ordinate value chosen is the bending of the point for every meter of position for not conforming to lattice point
Value.
Step 5：Readjust after determining pressure point, further according to the maximized principle of span, pressure point both sides symmetrically really
Determine position of the fulcrum, the selection principle of fulcrum is：Fulcrum is symmetrically distributed in pressure point both sides, and the span of adjacent fulcra cannot influence
To other pressure points, and the whole long range of guide rail cannot be exceeded, keep it big as possible in the case where meeting condition.
Step 6：In order to facilitate matching experts database data, after determining pressure point and fulcrum, to the bending value and span of pressure point
It is normalized, corresponding volume under pressure is matched in experts database according to the bending value of the pressure point after normalization and span,
Displacement with the volume under pressure as briquetting motor aligns guide rail, and the method for normalizing to span is：Span is big
Unified in 1000mm sets span as 1000mm, and the span between 800mm to 1000mm is normalized to 800mm, and 600mm is arrived
Span between 800mm is normalized to 600mm, and the span between 0mm to 600mm is normalized to 400mm.Thus obtain,
The span of pressure point.The specific method that pressure point bending value is normalized is：In the feelings of 1000mm spans and 800mm spans
It will be greater than the bending value equal to 2mm under condition and be uniformly normalized to 2mm, will be greater than the bending value equal to 1.5mm less than 2mm and uniformly return
One turns to 1.5mm, and the bending value more than or equal to 1.3mm less than 1.5mm is uniformly normalized to 1.3mm, is less than more than or equal to 1mm
The bending value of 1.3mm is uniformly normalized to 1mm, and the bending value more than or equal to 0.8mm less than 1mm is uniformly normalized to 0.8mm, small
It is uniformly normalized to 0.5mm in the bending value of 0.8mm；It will be greater than being equal to 1mm in the case of 600mm spans and 400mm spans
Bending value be uniformly normalized to 1mm, will be greater than being equal to 0.8mm and be uniformly normalized to 0.8mm less than the bending value of 1mm, be more than
Bending value equal to 0.6mm less than 0.8mm is uniformly normalized to 0.6mm, and it is unified to be more than or equal to 0.4 bending value less than 0.6mm
It is normalized to 0.4mm, the bending value more than or equal to 0.3mm less than 0.4mm is uniformly normalized to 0.3mm, is less than the bending of 0.3mm
Primary system one is normalized to 0.2mm.
Step 7：Linearity surveying is carried out to guide rail again, if the indices of guide rail are met the requirements, by each of guide rail
Achievement data is saved in database, if guide rail index is unqualified, return to step 3 is aligned next time.
The method of the present invention can accurate straightening rail, substantially increase lift car operation safety and comfort.
The present invention program is elaborated in the following with reference to the drawings and specific embodiments.
Before implementing method for aligning, put up first should by platform, by the data transmit-receive signal of laser range sensor
Line is connected with 232 serial ports of RS-in PC machine, and motion control board and each motor servo driver and PLC controller are connected
It connects, determines that hardware platform smooth can be run.Experts database guide rail aligns the logic flow of algorithm as shown in Fig. 2, specific real
Apply that steps are as follows：
Step 1：Successful empirical data is manually aligned using early period, and place is normalized to span and pressure point bending value
Reason determines span, pressure point bending value and corresponding volume under pressure, constitutes experts database；
Step 2：With serial port communication technology, every the sensor that 10 milliseconds measure laser range sensor to guide rail it
Between distance pass PC machine back, be stored in array, and by first it is collected point be used as origin, connect in rectangular coordinate system
Point retouches line.Due to the track and the guide rail line that is linked to be of ending of sensor translation and not parallel, so the last one point of guide rail does not exist
Above reference axis, the transverse and longitudinal coordinate ratio according to the last one point is needed, the point above line will be retouched and all carry out phase by this ratio
That answers moves up or down adjustment.Then new data is fitted and handles and draws curve, and by the value of each point of new curve
It is saved in array, it is convenient followed by data analysis.Final curves are as shown in figure 3, the curve is contained in total from guide rail head
To 500 data points at guide rail end, curvilinear abscissa shows rail bends value situation, the remoter bending of ordinate absolute value
Value is bigger.
Step 3：As seen from Figure 3, as pressure point bending point its main feature is that ordinate is a certain range of more than both sides
Point carries out data analysis to the curve of fitting using the method for traversal extreme point, chooses pressure point reference point.Since hardware platform limits
System, the distance between briquetting as pressure point is 20cm, so the 21st point is traversed above curve, compares the point with before
The ordinate size of each 20 points afterwards is sentenced if all bigger than the ordinate absolute value of other points in 20 point ranges of the right and left
Breaking the point can be as the reference point of pressure point, otherwise not as the reference point of guide rail aligning.The point from 20th o'clock to the 480th
Traverse all aligning reference points that can determine the guide rail.Bending value, which is selected, in these aligning reference points is less than minimum
The point of precision removes, and other ungratified points are saved in array, is referred to as aligning.Only there are one pressure point reference points in Fig. 3.
Step 4：Guide rail aligning is to remove aligning according to certain accuracy standard index, is not that finally guide rail is aligned
For a smooth straight line, therefore when determination final pressure point, the whole guide rail traversed out in step 3 is not only considered
On bending point, i.e. pressure point reference point can greatly improve guide rail in this way it is also contemplated that going to align for guide rail criterion of acceptability
Align efficiency.The index of guide rail qualification mainly has whole long bending value, every meter of bending value, left and right 500mm bending values and B/A values.
Whole long bending value intuitively reflects the bending situation of guide rail, is defined as on straightness error curve ordinate most
Big value y1With minimum value y2Difference.
B/A values, reflection is limitation to curve peak position, is defined as movement curve ordinate absolute value most
Ratio at a distance from the absolute value of the ordinate of big point and the abscissa of the point are closer to both ends, the value of B/A are：
In formula, y1It is the ordinate value of the point of ordinate maximum absolute value in curve, x1It is the corresponding abscissa value of point.
Bending value at the 500mm of left and right, as the term suggests the bending value on guide rail at 500mm and 4500mm, reflection is to work as
After more guide rails are by cloudy tenon and positive feather joint, the planarization of integrated guide rail, when calculating, with the absolute of 2 points of the ordinate
Value is as record.
Every meter of maximum deflection value, reflection is whole long bending value of the guide rail within the scope of one meter, is to ensure that whole guide rail is
The at most important indicator of the flatness of root guide rail connection, is defined as, each meter within the scope of guide rail linearity error progressive with 100mm
Each whole long bending value in maximum value, that is, at [0mm, 1000mm], [100mm, 1100mm] ... [3900mm,
4900mm], the corresponding whole long bending of whole long maximum area segments of bending value in this 41 sections of one meter of regions [4000mm, 5000mm]
Value.
By four kinds of computational methods above, each index actual value is calculated, index nonconformance is found out, under normal circumstances whole length
The pressure point coped with when unqualified is corresponding with bending point, and when in left and right, 500mm is unqualified, the point is not time under normal circumstances
The pressure point gone through out.Therefore pressure point is adjusted, it is some or all of to give up the pressure point traversed out, again according to unqualified feelings
Condition is to pressure point.Specific adjustable strategies：First, by one priority of these setup measures, the high first aligning of priority makes its satisfaction
It is required that.Here whole long bending value priority is set as highest, bending value takes second place at the 500mm of left and right, and remaining two indices are last.
Because a large amount of scene aligning data are shown：It is remaining generally after bending value all qualifications at whole long bending value and left and right 500mm
The index overwhelming majority can be met the requirements, if not satisfied, being aligned again individually for it.Then, if only whole long bending value does not conform to
Lattice, then the branch pressure point information calculated according to original algorithm are aligned；If there is other indexs unqualified, and former algorithm is in shadow
It rings the index and does not nearby calculate pressure point, then increase a pressure point specifically for the index.Finally, if whole long bending value is full
It requires enough, is then adjusted to, first mainly for the index at the 500mm of left and right, finally to solve B/A values and every meter of maximum is curved by pressure point
Song value.Adjustable strategies flow is as shown in Figure 4.
Step 5：Readjust after determining pressure point, further according to the maximized principle of span, pressure point both sides symmetrically really
Determine position of the fulcrum.When determining position of the fulcrum, first have to consider that the span on the left side fulcrum left side cannot be than Far Left fulcrum to song
The lateral distance of line starting point is long, and the span on the right of the fulcrum of the right cannot be longer than the lateral distance of rightmost fulcrum to End of Curve.
Secondly consider that the abscissa of left side fulcrum cannot be bigger than the abscissa of the right fulcrum.It is as big as possible under the conditions of meeting the two
Selection stride values.In order to facilitate matching experts database data, calculated stride values are normalized, span is more than
The unified of 1000mm sets span as 1000mm, and the span between 800mm to 1000mm is normalized to 800mm.And so on, one
No longer reduce span when the minimum value 400mm of stride values, is uniformly normalized to 400mm.Thus obtain, pressure point it is curved
Song value and span.
Step 6：When determining volume under pressure according to the bending value of pressure point and span, due to containing only major part in experts database just
True volume under pressure includes whole volumes under pressure under whole spans, thus also need to the bending value being similar to bending value into
Row normalized.For example, the bending value of 2mm is uniformly normalized to 2mm in the case of 1000mm spans, will be greater than
Bending values of the 1.5mm less than 2mm is uniformly normalized to 1.5mm, and so on, place is also normalized in each bending value
Reason improves the efficiency of guide rail aligning to realize the matched standardization of experts database.Mechanical part provides down according to experts database
Pressure amount aligns the bending point of guide rail.
Step 7：After guide rail is aligned, then Linearity surveying is carried out to guide rail, since experts database is to use a large amount of realities
The accurate data tested can align success according to given volume under pressure major part guide rail as Fig. 5, then will close
The data of lattice are saved in database.But there are small part guide rails due to material difference, cannot disposably align success, need by
The data detected again are sent to data analysis module and are analyzed, to be aligned next time, until aligning successfully.
Claims (7)
1. a kind of cage guide automatic flattening method based on experts database technology, which is characterized in that include the following steps：
Step 1：Successful empirical data is manually aligned using early period, and the bending value and stride values of pressure point are normalized
The bending value of new pressure point and corresponding volume under pressure are obtained with analysis, constitutes experts database；
Step 2：The straightness information for acquiring guide rail is write music line according to gathered data fitting a straight line；
Step 3：Data analysis is carried out to the curve of fitting using traversal Extremal point algorithm, chooses pressure point reference point；
Step 4：It is found out according to guide rail linearity qualification index and does not conform to lattice point, according to not conforming to the position of lattice point from pressure point reference point
Determine final pressure point；
Step 5：It readjusts after determining pressure point, further according to the maximized principle of span, branch is symmetrically determined on pressure point both sides
Point position；
Step 6：After determining pressure point and fulcrum, the bending value and stride values of pressure point are normalized, according to normalization
The bending value and stride values of pressure point afterwards match corresponding volume under pressure in experts database, with the volume under pressure as briquetting motor
Displacement guide rail is aligned；
Step 7：Linearity surveying is carried out to guide rail again, if the indices of guide rail are met the requirements, by each index of guide rail
Data are saved in database, if guide rail index is unqualified, return to step 3 is aligned next time.
2. the cage guide automatic flattening method according to claim 1 based on experts database technology, which is characterized in that described
The write music specific method of line of step 2 fitting a straight line is：
Step 2.1：The guide rail linearity information of laser range finder detection is acquired every 10 milliseconds, i.e. laser range finder sensor arrives
The distance between guide rail；
Step 2.2：Before drawing straightness curve, it regard first collected point as origin, calculates the transverse and longitudinal of the last one point
Coordinate ratio moves up or down adjustment accordingly according to this ratio to all point progress；
Step 2.3：Data after adjustment are fitted, and draw curve.
3. the cage guide automatic flattening method according to claim 1 based on experts database technology, which is characterized in that described
Step 3 choose pressure point reference point specific method be：
Step 3.1：Since the 21st point of curve, compare the ordinate size of current point and front and back each 20 points, if current point
The ordinate absolute value of 20 points more each than front and back both sides is all big, then judges that the current point can be used as pressure point reference point, otherwise not
Pressure point reference point can be used as；
Step 3.2：According to the method for step 3.1, traversal is except first 20 and rear 20 all the points, from whole guide rail linearity song
Being chosen in line can be as the point of pressure point reference point；
Step 3.3：Remove the point that bending value is less than minimum precision from pressure point reference point.
4. the cage guide automatic flattening method according to claim 1 based on experts database technology, which is characterized in that described
Step 4 determines that the specific method of final pressure point is：
Step 4.1：Guide rail linearity qualification index, including whole long bending value, every meter of maximum deflection value, each 500mm in left and right are set
Locate bending value and B/A values；
Whole long bending value, is defined as the difference of the maxima and minima of ordinate on straightness error curve；
Every meter of maximum deflection value, be defined as it is progressive with 100mm, in each one meter of long area segments, in each whole long bending value
Maximum value；
B/A values, the abscissa for being defined as the absolute value and the point of the ordinate of the point of movement curve ordinate maximum absolute value arrive
The ratio of the closer distance in guide rail both ends, specially：In formula, y1It is that ordinate is exhausted in curve
To being worth the ordinate value of maximum point, x1It is the corresponding abscissa value of point；
Step 4.2：Each index actual value is calculated, the pressure point reference point before and after not conforming to lattice point in each 20 points is chosen and is used as most final pressure
Point：First by one priority of each setup measures in guide rail linearity qualification index, whole long bending value priority is set as most
Height, bending value takes second place at each 500mm in left and right, then considers B/A values, and every meter of maximum deflection value is last, the high first aligning of priority,
It is set to meet the requirements；If whole long bending value is unqualified, aligned using pressure point reference point as pressure point；If whole long bending value closes
Lattice, bending value is unqualified at each 500mm in left and right, then does not consider the position of pressure point reference point, directly or so at each 500mm it is curved
Song is worth the position of underproof point as pressure point；If whole long bending value is qualified, bending value is qualified at each 500mm in left and right, and B/A values are not
B/A values are not then conformed to the position of lattice point as pressure point by qualification；If whole long bending value is qualified, bending value closes at each 500mm in left and right
Lattice, B/A values are qualified, and every meter of maximum deflection value is unqualified, then every meter of maximum deflection value are not conformed to the position of lattice point as pressure point, choosing
The absolute value of good its corresponding ordinate value of pressure point is the bending value of the pressure point.
5. the cage guide automatic flattening method according to claim 1 based on experts database technology, which is characterized in that described
The selection principle of step 5 fulcrum is：Fulcrum is symmetrically distributed in pressure point both sides, and the span of adjacent fulcra cannot influence other
Pressure point, and the whole long range of guide rail cannot be exceeded, keep it big as possible in the case where meeting mentioned above principle.
6. the cage guide automatic flattening method according to claim 1 based on experts database technology, which is characterized in that described
The specific method that step 1 and 6 pairs of stride values are normalized is：By span more than 1000mm it is unified set span as
Span between 1000mm, 800mm to 1000mm is normalized to 800mm, and the span between 600mm to 800mm is normalized to
Span between 600mm, 0mm to 600mm is normalized to 400mm.
7. the cage guide automatic flattening method according to claim 1 based on experts database technology, which is characterized in that described
The specific method that the bending value of step 1 and 6 pairs of pressure points is normalized is：In the feelings of 1000mm spans and 800mm spans
It will be greater than the bending value equal to 2mm under condition and be uniformly normalized to 2mm, will be greater than being equal to bending value unifications of the 1.5mm less than 2mm
It is normalized to 1.5mm, the bending value more than or equal to 1.3mm less than 1.5mm is uniformly normalized to 1.3mm, is less than more than or equal to 1mm
The bending value of 1.3mm is uniformly normalized to 1mm, and the bending value more than or equal to 0.8mm less than 1mm is uniformly normalized to 0.8mm, small
It is uniformly normalized to 0.5mm in the bending value of 0.8mm；It will be greater than being equal to 1mm in the case of 600mm spans and 400mm spans
Bending value be uniformly normalized to 1mm, will be greater than being equal to 0.8mm and be uniformly normalized to 0.8mm less than the bending value of 1mm, be more than
Bending value equal to 0.6mm less than 0.8mm is uniformly normalized to 0.6mm, and it is unified to be more than or equal to 0.4 bending value less than 0.6mm
It is normalized to 0.4mm, the bending value more than or equal to 0.3mm less than 0.4mm is uniformly normalized to 0.3mm, is less than the bending of 0.3mm
Primary system one is normalized to 0.2mm.
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| CN113385554B (en) * | 2021-08-18 | 2021-10-29 | 马拉兹(江苏)电梯导轨有限公司 | Elevator guide rail bending degree evaluation method, elevator guide rail straightening method and system |
| CN113399500B (en) * | 2021-08-19 | 2021-10-29 | 马拉兹(江苏)电梯导轨有限公司 | T-shaped guide rail straightening device and method |
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