CN102830655B - System and method of adaptive die for ventral punching of U-shaped beam - Google Patents
System and method of adaptive die for ventral punching of U-shaped beam Download PDFInfo
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- CN102830655B CN102830655B CN201210306256.6A CN201210306256A CN102830655B CN 102830655 B CN102830655 B CN 102830655B CN 201210306256 A CN201210306256 A CN 201210306256A CN 102830655 B CN102830655 B CN 102830655B
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Abstract
Disclosed are a system and a method of adaptive dies for ventral punching of a U-shaped beam. The system is characterized by comprising a data definition module, a parameter setting module, a die storeroom operation module, a CAD (computer-aided design) graph reading module, a dynamic adaptive die module, an optimization module, an analog simulation module and a NC (numerical control) program creating module. The dynamic adaptive die module performs large host machine die pre-machining and small host machine die pre-machining to all effective data in a punching array output by the CAD graph reading module. A drive queue and a driven queue are formed according to the status of the large host machine pre-machining die and the small host machine pre-machining die. Each queue is ordered from small to large according to each X+ die offset so as to form a drive ordered queue and a driven ordered queue. A pre-punching die machine and a pre-punching die number are determined according to conditions of single punching, double matching punching and synchronous punching by two host machines, beam parameters, and punching positions on the beam. Graphs of die blocks corresponding to the die number are called to write back to a CAM (computer-aided manufacturing) layer defined by the data definition module in the U-shaped beam graphics library in a manner of blocks according to the pre-punching host machine and the pre-punching die number. The graphs of die blocks are read by the optimization module.
Description
Technical field
The present invention relates to numerical control punching production line die storehouse formation, control system and the Computer-aided manufacturing field of car U-shaped beam, relate in particular to the method for the adaptive mould of automobile U-shaped soffit of girder face punching.
Background technology
China's automobile longitudinal girder four main frame outside of belly rush production line and start late, rushing production line from China's First four main frame outside of belly in 2007 develops so far, also only has quinquenniad, the method of the adaptive mould that the outside of belly adopts is at present the method between fixed allocation punch area, be that large main frame rushes the hole that first paragraph (segment length is determined to the mounting distance little main frame by large main frame), upper half (being that y value is greater than the wide half of plate) and diameter of a circle are greater than 23mm, little main frame rushes final stage and bottom half (being that y value is less than or equal to the wide half of plate); Insider is commonly referred to the adaptive mode in L shaped interval; The problem existing:
1, punching efficiency is low, and because the likelihood ratio of punching is simultaneously lower, generally at 60%-85%, while particularly concentrating on one side for the distribution in bottom half hole on some U-shaped beam, the probability of punching only has below 50% simultaneously, causes punching efficiency low.
2。Punching ratio of precision is poor, and some group pore size distribution is in upper and lower Liang Geban district, and the method between fixed allocation punch area need be with two main frame punching group holes, and generally error is at 20-30 silk, and cornerwise error is also larger.
In the punching processing of longeron, how improving punching precision and punching efficiency is the target of the development pursuit of automobile side rail numerical control punching production line, along with the standardization and seriation of many kinds high-quality heavy goods vehicles of automobile industry independent research and technological innovation, punching precision to vehicle frame and the requirement of efficiency are more and more higher, the method of the adaptive mould between existing fixed allocation punch area can not meet the requirement of current automobile industry to punching precision and efficiency, the probability simultaneously rushing in order to improve punching precision and two main frame, thought and the algorithm of dynamic adaptation mould have been proposed.
So-called dynamically dynamic adaptation mould just refers to the method for dynamically distributing or change adaptive mould in the process of carrying out in program.Dynamic adaptation mould does not resemble the adaptive die method of fixed interval need to allocate region in advance, but according to the position in U-shaped beam hole and quantity number immediately distributed according to the needs of program by system, and the size of distributing is exactly the size that program requires.
(1) prior art is analyzed process time: the circulating time Tz of a U-shaped beam is
①
Znum＝n+m+p×2 ②
Tx=max(T1,T2) ③
Td=max(T3,T4) ④
Ts=max{max(t1,t2),max(t3,t4)} ⑤
Wherein: Tx is the time of little main frame one-off hole-piercing,
the time sum of rushing n hole for little main frame
Td is the time of large main frame one-off hole-piercing,
for the time sum that main frame rushes m hole greatly
Ts is the once time of punching simultaneously of big or small main frame,
for the time sum of big or small main frame p punching simultaneously;
Znum: total hole count
T1 is the little main frame undershoot time, T2 is that arrival time, (to be longeron arrived the position of wanting the position of punching and little main frame to move forward and backward arrival and want punching along Y-direction along directions X, that time of growing in these two working times, due to 60 ms/min of the speed of little main frame x axle, 40 ms/min of the speed of Y-axis, Z axis is little main frame undershoot, forms 3 axle interlocks, get the little main frame one-off hole-piercing time of conduct the slowest in three axles, generally Y-axis is the slowest.
T3 is the large main frame undershoot time, T4 is that (being longeron arrived and wanted the position of punching and main frame moves forward and backward arrival and wants punching along Y-direction greatly position along directions X arrival time, that time of growing in these two working times, due to 40 ms/min of the speed of large main frame x axle, 30 ms/min of the speed of Y-axis, Z axis is large main frame undershoot, forms 3 axle interlocks, get the large main frame one-off hole-piercing time of conduct the slowest in three axles, generally Y-axis is the slowest.
The circulating time of each main frame, except outside the Pass having with power, speed, air pressure, has following proportionate relationship:
(2) analyze the process time of realizing after dynamic assignment mould
1. and 2. known by formula, due to Tx, Td, Ts are constant under rated condition in the situation that, shorten Tz, thereby increase p, to reduce n, m be effective method, increases the ratio that two main frames rush simultaneously.
3. and 4. being known by formula, reduce Tx and Td thereby effectively reduce T2 and T4, is also a kind of means that shorten Tz in 1., and big or small main frame puts in place in advance.
(3) prior art software environment and functional module
Fig. 6 is the system module of prior art, by CAD figure read with write-back module die storehouse operational module, parameter module, automatic adaptation mould be set, optimize module, analog simulation module, NC program creation module form, only have the adaptive mould of L shaped fixed interval, forming three kinds of punching modes is little main frame one-shot, main frame one-shot, little main frame rush simultaneously greatly.The defect that its exists is that the ratio that simultaneously rushes of two main frames of generator program is low, and punching number of times is many, and the time of processing operation is long, and efficiency is low.
Summary of the invention
technical matters:the object of the invention is to break through traditional pattern, break the method for the adaptive mould of outside of belly punching fixed interval, adopt dynamic adaptation mould; In the time of a main frame one-shot, the Y value of another main frame puts in place in advance; Can be used for the outside of belly punching of many main frames, can improve speed and the punching precision of U-shaped soffit of girder face punching.
technical scheme: in the punching processing of longeron, how improving punching precision and punching efficiency is the target of the development pursuit of automobile side rail numerical control punching production line.Thought and the algorithm of dynamic adaptation mould are: need the institute of punching press porose by large main frame and the each prewired mould of little main frame to the outside of belly, then large and small main frame forms two Associate arrays, and each array is by the ascending sequence of setovering of x+ mould; Then from large main frame punching press array head, whenever there being flushable hole, in little main frame punching press array, choose the hole of mating with it according to two main frames condition of rushing simultaneously, carry out two main frames and rush coupling (the little main frame x of its principle direction displacement minimum) simultaneously; Select certain main frame to carry out one-shot according to the size of x+ mould biasing and the position relationship in hole if can not meet two main frames condition of rushing simultaneously, the Y value of another main frame puts in place in advance, repeat above step, all the adaptive mould in hole completes, carry out reality and join mould, dynamically adjust the distribution of two main frames, carry out load balancing assessment; And then start the porose coupling again to institute from little main frame queue heads, and whenever there being flushable hole, in large main frame queue, choose the hole of mating with it according to two main frames condition of rushing simultaneously, carry out two main frames and rush (the little main frame x of its principle direction displacement minimum) simultaneously; Select certain main frame to carry out one-shot according to the size of x+ mould biasing and the position relationship in hole if can not meet two main frames condition of rushing simultaneously; Carry out comprehensive assessment, dynamically adjust the distribution of two main frames, carry out load balancing assessment, repeat above step, all the adaptive mould in hole completes, and obtains the matching algorithm of maximum coupling as prewired mould.
beneficial effect: increased compared with prior art systems block diagram data definition module, by X order module, the large prewired die module of main frame, the prewired die module of little main frame, large main frame order module, single host solely rush processing module, add hole sequence number module, little main frame order module, solely rush main frame and another host matching simultaneously die block, twoly join the prewired while die block in hole, two hole one-shot of joining is processed mould, deleted large main frame whole and all macropore adaptations anterior, top added to mould and the aperture adaptation die module of little main frame to rear portion, bottom
,it is by increasing dynamic prewired mold process and definite punching host process, used two punching press arrays to reach dynamic assignment mould, the ratio that two main frames of its generator program rush simultaneously improves greatly, and punching number of times is reduced, the time of processing operation is short, and efficiency is high.1. because this patent has adopted dynamic adaptation Tool and Die Technology, make the outside of belly punching efficiency of U-shaped beam improve larger, the distribution that is particularly suitable for bottom half hole on some U-shaped beam concentrates on situation on one side, a large amount of test comparison experiments has been done by this seminar, below partial test contrast experiment's result: beam U-shaped beam length 11756mm for experiment, outside of belly width 300mm, thickness 8mm, 720 of total hole counts
Two kinds of methods and results comparisons of dynamic adaptation mould and prior art (between fixed allocation punch area)
Circulating time between fixed allocation punch area: Tz=6 × 1+246 × 1.3+114 × 1.35=479.7 second
Undershoot number of times 6+246+114=366
Dynamic adaptation die punching time: Tz=0 × 1+68 × 1.3+206 × 1.35=366.5 seconds
Undershoot number of times 68+206=274
Two kinds of methods and results comparisons:
Time efficiency improves (479.7-366.5)/(479.7) × 100%=23%
The raising of undershoot number of times efficiency: (366-274)/366 × 100%=25%
Shortened 113.2 seconds than the circulating time between fixed allocation punch area for the U-shaped longeron dynamic adaptation die punching time in upper table, efficiency has improved 23%.For 480 total hole counts, undershoot number of times has reduced 92 times, and efficiency has improved 25%.In table, the punching mode of dynamic adaptation mould has three kinds (little main frame one-shot, large main frame one-shots, two main frames rush simultaneously)
2. because a main frame punching press is selected in position, main hole, its precision also improves a lot, and the precision in group hole is in 10, and the raising of precision has ensured the assembly precision of vehicle frame, and then has increased the security that automobile is exercised.
3. owing to having adopted the technology that puts in place in advance, punching speed is improved.
Brief description of the drawings
below in conjunction with accompanying drawing and example, the present invention will be further described.
Fig. 1 is a kind of the general frame of adaptive die method; Fig. 2 is the flow chart that a kind of adaptive die method is realized; Fig. 3 is the data flow diagram 1 that a kind of adaptive die method is realized; Fig. 4 is the data flow diagram 2 that a kind of adaptive die method is realized; Fig. 5 is die storehouse and the relative position that the outside of belly rushes big or small main frame, and taking No. 19 moulds of large main frame as basic point, the x of other moulds by calculating, sets up die storehouse to biasing.Little main frame mould 1-18, large main frame mould 19-39, the distance 1136mm between two main frames; Fig. 6 is a kind of system chart of prior art of adaptive die method realization.
Embodiment
Fig. 1 is the system chart that the method for dynamic adaptation mould in the embodiment of the present invention realizes, and comprises three parts, and CAD part is to draw the figure of U-shaped beam; CAM part is core content, and function is to read the longeron drawing of U-shaped beam shape library, and dynamic auto adaptive mould is divided into two queues of principal and subordinate the data of mould piece, creates NC program; Part III program is carried out object---automobile longitudinal girder numerical control outside of belly punching five main frame production lines, and CAM part comprises:
Step 1: the initialization of system: by data definition module: data definition module definition die storehouse array, punching press array, optimize array, CAM layer, simulation layer and public variable, and array and public variable are passed to CAD figure read module, automatic adaptation die module, optimize each functional modules such as module, analog simulation module, NC program creation module;
The data structure of punching press array
The self-defined punching type of Type HPUNCH '
The x coordinate in X As Double ' hole
The y coordinate in Y As Double ' hole
The diameter in D As Double ' hole
T As Integer ' mould number
The biasing of TX As Integer ' x+ mould
The large host test mould number of TD As Integer '
TDX As Double ' x coordinate+large host test mould tool offset
The little host test mould number of TS As Integer '
TSX As Double ' x coordinate+little host test mould tool offset
Position, NUM As Integer ' hole sequence number
SC As Integer ' simultaneously 2 liang of main frames of punch mark 1 one-shot rushes simultaneously
End Type
Punching press array is dynamic array, with Dim Data1 () As HPUNCH
ReDim Preserve Data1 (PNum) realizes
Second punching press array Dim Data2 () As HPUNCH
Optimizing array is two-dimensional array, Public PData (600,4) As String ' deposits punching point data, data item has: 0: detected value, 1: the X value of mould piece insertion point, 2: the Y value of mould piece insertion point, 3: mould number, 4: X value+mould directions X biasing of mould piece insertion point, for optimizing module, analog simulation module, NC program creation module;
Die storehouse array is two-dimensional array, Public MOJU (39,7) As Variant ' deposits die storehouse: station, type, size X, size Y, size R, dimension D, angle, directions X biasing, for functional modules such as automatic adaptation die module, optimization module, analog simulation module, NC program creation modules;
Public variable: Public PROGNUM As String ' program number
Public BANLENTH As String ' sheet material length
Public BANWIDTH As String ' sheet material width
Public GAODU As String ' aerofoil height
Public HOUDU As String ' thickness
Public CLQD As Double ' the strength of materials
More than 100 of the effective hole of Public PNum As Integer ' countings etc., are respectively used to each functional module.
Parameter arranges module: parameter arranges module and reads the parameter that forms are set, leave in the public variable of data definition module definition, parameter has program number, beam length, outside of belly width, thickness, X stroke, Y stroke etc. and these public variables is passed to automatic adaptation die module, optimizes each functional modules such as module, analog simulation module, NC program creation module;
Die storehouse operational module reads each has the data of station (1-39) to put into the die storehouse array of data definition module definition in fact; Each mould with the form of piece set up mould block graphics output mask storehouse array to dynamic adaptation die module, optimize module, analog simulation module and NC program creation module, output mask block graphics is to die storehouse figure calling module, die storehouse write-back module and analog simulation module;
Step 2:
cAD figure read module: model CAD is connected with CAM's, read all pixels of U-shaped beam shape library, filter out the entity that pixel title equals circle, obtain the property value center of circle and the straight warp of entity, the coordinate figure Y in the coordinate figure X in the center of circle, the center of circle and diameter value D are changed in X, the Y of the punching press array Data1 of data definition module definition and D and the data of exporting punching press array Data1 to automatic adaptation die module;
Step 3:
dynamic adaptation die module:can be divided into three parts by function: the dynamic prewired mold process of Part I, Part II is determined punching host process, Part III actual fit mold process; Dynamic adaptation die module comprises:
press X order module: from the punching press array Data1 of CAD figure read module output, obtain data by X order module, sort and export the punching array having sorted to the prewired die module of large main frame by the X coordinate in the center of circle is ascending;
the large prewired die module of main frame: the large prewired die module of main frame from
press X order modulex coordinate, Y coordinate, diameter value and the parameter of obtaining the center of circle in the punching press array Data1 of output arranges public variable beam length, the outside of belly width of module transmission, which mould of which row of lower row's mould is chosen in the relation decision of thickness, arrange up and down selection according to Y value
Select to arrange up and down mould condition as follows
Under Y value > outside of belly width-(22+thickness of slab+70) A station, arrange mould
On the A station of Y value < 22+thickness of slab+70, arrange mould
Under Y value > outside of belly width-(26+thickness of slab+62) B station, arrange mould
On the B station of Y value < 26+thickness of slab+62, arrange mould
Because the mould of C station (27,28,29,30,31) is single row mould, do not arrange up and down selection
19,21,36,38 ' arrange mould under A station
20,22,37,39 ' arrange mould on A station
23,25,32,34 ' arrange mould under B station
24,26,33,35 ' arrange mould on B station
27,28,29,30,31 ' C station single row mould
After having determined up and down row, determine which mould adaptation, condition is:
The diameter D of punching press array Data1 equals the mould diameter in die storehouse, adopts same mould adaptation for position, main hole
TD and the TDX of DATA1 put in the mould biasing of the mould that the mould of choosing number and X+ are chosen number
The mould number that TD=chooses
The mould biasing of the mould that TDX=X+ chooses number
And export punching array to
the prewired die module of little main frame;
the prewired die module of little main frame: X coordinate, Y coordinate, diameter value and the parameter that the prewired die module of little main frame obtains the data acquisition center of circle from major queue is set up the punching press array DATA1 of module output arranges public variable beam length, the outside of belly width of module transmission, which mould of which row of lower row's mould is chosen in the relation decision of thickness, arrange up and down selection according to Y value
Select to arrange up and down mould condition as follows
Under Y value > outside of belly width-(22+thickness of slab+70) A station, arrange mould
On the A station of Y value < 22+thickness of slab+70, arrange mould
Under Y value > outside of belly width-(26+thickness of slab+62) B station, arrange mould
On the B station of Y value < 26+thickness of slab+62, arrange mould
1,3,15,17 ' arrange mould under A station
2,4,16,18 ' arrange mould on A station
5,7,9,11,13 ' arrange mould under B station
6,8,10,12,14 ' arrange mould on B station
After having determined up and down row, determine which mould adaptation, condition is:
The diameter D of punching press array Data1 equals the mould diameter in die storehouse, adopts same mould adaptation, to improve precision for position, main hole.
TS and the TSX of DATA1 put in the mould biasing of the mould that the mould of choosing number and X+ are chosen number
The mould number that TS=chooses
The mould biasing of the mould that TSX=X+ chooses number
And export punching array Data1 to large main frame order module;
large main frame order module: large main frame order module is obtained data from the punching press array Data1 of the prewired die module output of little main frame, and by large host test mould tool offset position TDX, the ascending sequence of punching press array the output punching press array Data1 that sorted is arrived
single host solely rushes processing module;
single host solely rushes processing module: single host solely rush processing module from
large main frame order modulein the punching press array Data1 of output, obtain data, when judgement only has a large main frame to add mould, determine that large main frame is pre-punched hole main frame, mould position equals the prewired mould number of large main frame, and the biasing of X+ mould equals large host test mould tool offset;
As TD>=19 and TS<1
T=TD TX=TDX
While only having a little main frame to add mould, determine that little main frame is pre-punched hole main frame, mould position equals the prewired mould number of little main frame, and the biasing of X+ mould equals little host test mould tool offset;
As TD<19 and TS>=1
T=TS TX=TSX
And the punching press array of exporting two queues is to adding hole sequence number module;
add hole sequence number module: add hole sequence number module and obtain data from single host solely rushes the punching press array Data1 of processing module output, add hole sequence number in the NUM of punching press array Data1, so that two unified hole sequence number NUM identifying holes for array, be second punching press array Data2 punching press array Data1 copy, and export these two punching press arrays to little main frame order module;
little main frame order module: little main frame order module is obtained data from add the punching press array Data1 of hole sequence number module output and Data2, in Data2, by little host test mould tool offset position TDX, the ascending sequence of punching press array Data2 output has been sorted to punching press array Data1 and Data2 to solely rushing main frame and another host matching while die block;
solely rush main frame and another host matching die block simultaneously: solely rush main frame and another host matching punching press array Data1 that die block is exported from little main frame order module simultaneously and Data2 and obtain data, when in Data1, judgement only has a large main frame to add mould, in Data2, search and meet two main frames and rush the hole that the little main frame of condition can rush simultaneously, and mark rushes simultaneously;
The hole of looking for satisfied two main frames of little main frame queue simultaneously to rush condition when current hole satisfies condition TD>=19 and TS<1 in Data1 from Data2 is found and is determined this Kong Wei little main frame punching:
T=TS TX=TSX
While only having a little main frame to add mould in Data2; From Data1, search and meet two main frames and rush the hole that the large main frame of condition can rush simultaneously, and mark rushes simultaneously;
The hole of looking for satisfied two main frames of large main frame queue simultaneously to rush condition when current hole satisfies condition TD<19 and TS>=1 from Data1 is found and is determined this Kong Wei great main frame punching:
T=TD TX=TDX
And export two punching press array Data1 and Data2 to two prewired while die blocks in hole of joining;
two prewired while die blocks in hole of joining: two prewired while die blocks in hole of joining obtain data from solely rush main frame and another host matching punching press array Data1 that die block is exported simultaneously and Data2, if this hole has two main frames can add mould, first the one group of hole that judges position, main hole adopts same mould adaptation, then determine pre-punched hole main frame according to the condition of rushing simultaneously, and mark rushes simultaneously, T1 is the T value in the first hole, and T2 is the T value in the second hole
As TD>=19 and TS>=1 and T1=0 and T2=0
The first hole T=TD TX=TDX
The second hole T=TS TX=TSX
And export two punching press array Data1 and Data2 to two hole one-shot processing modules of joining;
two hole one-shot processing modules of joining: two hole one-shot processing modules of joining are obtained data from two punching press array Data1 that join the die block output of prewired while of hole and Data2, judge that this hole does not meet and rushes condition, the pre-one-shot of the large main frame of first paragraph, the pre-one-shot of other little main frames simultaneously
In the time of the distance of No. X<19-No. 1 mould
T=TD TX=TDX
In the time of the distance of No. X>=19-No. 1 mould
T=TS TX=TSX
And export two punching press arrays to actual fit die module
actual fit die module:actual fit die module obtains data from two punching press array Data1 that join hole one-shot processing module output, in each main frame, first determine row up and down according to Y value according to the numerical value of host number position, determine again bore dia and the mould number equating in die storehouse, mould number is put into mould position, and export punching press array to mould block graphics calling module;
mould block graphics calling module: mould block graphics calling module is obtained mould number from the mould position T of the punching array Data1 of actual fit die module output, obtains its shape output mask block graphics to mould piece write-back module the mould block graphics of exporting from die storehouse module according to this mould number;
mould piece write-back module: mould piece write-back module is written back to mold shape U-shaped beam shape library on CAM layer in the mode of piece from the mould block graphics of mould block graphics calling module output, INS Wei Gaikong center by red display; Piece is called mould number, and this piece is carried out to front and back Check processing, and rear detection is not processed, and the attribute flags of front detection mould piece is written as " WB ", reads for optimizing module.
Step 4:
optimize module:optimize module and read the coordinate figure of all insertion points of the CAM floor of the graphic data base of automatic adaptation die module write-back and mould number and front and back detected value, put into and optimize array PData, and increasing the biasing of this mould of coordinate figure X+ of an insertion point, the biasing of mould obtains from die storehouse array; Optimize the each definition of data item of array PData
Before and after the 0th, detect
The coordinate figure X of the 1st piece insertion point
The coordinate figure Y of the 2nd piece insertion point
The 3rd mould number
The biasing of this mould of coordinate figure X+ of the 4th insertion point
Optimize array and press cutter number descending arrangement; Optimize array and be divided into two queues of principal and subordinate, large main frame punching data are major queue, and little main frame punching data are from queue, and individual queue is by the ascending sequence of setovering of X+ mould; And the optimization array data that output has been sorted is to NC program creation module and analog simulation module;
Step 5:
analog simulation modulesuccessively in graphic data base, carry out successively emulation demonstration according to the data of optimizing array, exit mould and enter normal demonstration;
Step 6:
nC program creation modulenC program creation module according to optimize module output two ordered queues of sequence principal and subordinate data, fetch data from the head of two queues respectively, get one group of data from the head of major queue the biasing of this mould of X+ is assigned to variable Pz1, from get one group of data from queue, the biasing of this mould of X+ is assigned to variable Pz2 again, the relatively condition of the biasing of this mould of coordinate figure X+ in these two groups of data, X3xc is that little main frame moves horizontally (displacement is 500mm) along directions X
If meet and rush condition Pz2-Pz1 >=0 and Pz2 – Pz1 <=X3xc rushes simultaneously simultaneously
The little main frame one-shot of Pz1> Pz2, large main frame puts in place in advance
The large main frame one-shot of Pz1 <=Pz2, little main frame puts in place in advance
Form three kinds of basic punching mode statements (little main frame one-shot, large main frame one-shot, two main frames rush simultaneously), the array of two queues of principal and subordinate all judges complete, and output forms NC program;
Program output module: program output module is presented at the Sentence format of output in output forms and the Sentence format of output and writes in NC program file, the program that is sent to is carried out processing operation in object.
The definition of the several concepts that relate in this patent:
1. punching Sentence format is:
Xx Yy Tt Aa Bb Cc Dd Ee Fi Gg Hh;(Xd,XS)
The wherein coordinate figure x of the large main frame of x mold center
The coordinate figure y of the large main frame of y mold center
The large main frame mould of t number (19-39)
The front and back detection mode of the large main frame of a
The coordinate figure x of the little main frame of b mold center
The coordinate figure y of the little main frame of c mold center
The little main frame mould of d number (1-18)
The front and back detection mode of the little main frame of e
I punching Selection of chiller 1: little main frame one-shot, 2: large main frame one-shot 3: big or small main frame rushes simultaneously
The Y value of the large main frame of h puts in place in advance
The Y value of the little main frame of g puts in place in advance
2. the front certification mark of mark " W B ", writes the english abbreviation of the attribute of tag block, before W:write b:block, detects and adds this mark, and rear detection is not labelled, and after labelling, on its circle, shows " W B " character.
3. station: the position that mould occupies, international standard is divided into A, B, C, D, E Pyatyi by inch, and boundary is respectively 1/2 ＂, 1.2 ＂, 2 ＂, 3.5 ＂, 4.5 ＂, longeron production line, not according to international standard industrial classification, divides three kinds by following diameter
A station <=13mm
B station <=23mm and >13mm
C station >23mm
4. position, main hole: refer to the hole coordinating with other parts, as propons, back axle, engine etc., the raising of position, main hole precision has increased the security of automobile.
So far, finish the method that a kind of pair of main frame outside of belly of the present embodiment rushes dynamic adaptation mould
fig. 2be the flow chart of a kind of adaptive mold system and method, mainly contain the following step:
Step 1: the initialization of system: by
data definition module:by 201 realizations, data definition module definition die storehouse array MOJU (49,7), DATA1 (X, Y, D, SC, T, TX, TD, TDX, TS, TSX, NUM) punching press array, CAM layer, optimization array PDATA (600,4), simulation layer and public variable PROGNUM program number, BANLENTH sheet material length, BANWIDTH sheet material width, GAODU aerofoil height, HOUDU thickness, the CLQD strength of materials, more than 100 of the effective hole of PNum countings etc., are respectively used to each functional module
step 2:CAD figure read module: 202 to 209 realize being connected of model CAD and CAM, read all pixels of U-shaped beam shape library, filter out the entity that pixel title equals circle, obtain the property value center of circle and the straight warp of entity, the coordinate figure Y in the coordinate figure X in the center of circle, the center of circle and diameter value D are changed in X, the Y of the punching press array Data1 of data definition module definition and D and the data of exporting punching press array Data1 to automatic adaptation die module;
Step 3:
dynamic adaptation die module:210 to 236 realizations; Comprise by sort ascending order module, big or small main frame of X and add in advance die module, big or small main frame and determine (214-235), the real die module (mould block graphics calling module and mould piece write-back module) of joining by X+ mould biasing order module, prewired host number.Read for optimizing module;
Step 4:
optimize module:237 realize, read the coordinate figure of all insertion points of the CAM floor of the graphic data base of dynamic adaptation die module write-back and mould number and front and back detected value, put into and optimize array PData, and increasing the biasing of this mould of coordinate figure X+ of an insertion point, the biasing of mould obtains from die storehouse array; Optimize array
Before and after the 0th, detect
The coordinate figure X of the 1st piece insertion point
The coordinate figure Y of the 2nd piece insertion point
The 3rd mould number
The biasing of this mould of coordinate figure X+ of the 4th insertion point
Optimize array and press cutter number descending arrangement; Optimize array and be divided into two queues of principal and subordinate, large main frame punching data are major queue, and little main frame punching data are from queue, and individual queue is by the ascending sequence of setovering of X+ mould; And the optimization array data that output has been sorted is to NC program creation module and analog simulation module;
Step 6:
analog simulation module237 realizations are successively carried out emulation demonstration successively according to the data of optimizing array in graphic data base, exit mould and enter normal demonstration;
Step 7:
nC program creation module237 creation modules are rushed condition, auxiliary statement establishment NC program, processing operation according to data, program statement form, two main frames of optimizing array simultaneously.
fig. 3 Fig. 4it is a kind of adaptive Mould Machining system and method data flow diagram, mainly contain two data stream, Fig. 3 is that first data stream is from figure to automatic adaptation mould write-back graphic data base, longeron figure reads figure through CAD figure read module and is formed as pixel set and (comprises circle, line, size marking, polygon, rectangle, circular arc, oval etc.), pixel set is filtered and is become round set through screening circle, two property value (centers of circle are obtained in the set of circle, radius) become the set of centre point diameter, the set of centre point diameter is assigned to the X of self-defined array (being punching press array DATA1) through the X coordinate of centre point, the Y coordinate of centre point is assigned to self-defined array Y, diameter is assigned to self-defined array D and becomes as self-defined array (being punching press array DATA1), self-defined array becomes orderly self-defined array by the ascending sequence of X item, the prewired mould of the large main frame in whole holes of orderly self-defined array, the little main frame in whole holes of orderly self-defined array is a prewired mould also, large main frame is pressed X+ mould biasing sequence, little main frame is pressed X+ mould biasing sequence and is formed two punching press arrays, solely adaptive main frame and the definite adaptive main frame of punching are simultaneously determined in punching, adaptive main frame is determined in two holes (be big or small main frame can prewired mould to this hole hole) of joining, according to adaptive host number, join mould number according to arranging up and down the relation that judgement and bore dia equate with mould diameter, condition is the diameter position D that the diameter position D of self-defined array equals die storehouse array, the figure of the mould piece of matched mold is written back in the CAM layer of graphic data base to INS Wei Gaikong center with the form of piece and by red display, piece is called mould number, this piece is carried out to front and back Check processing, rear detection is not processed, the attribute flags of front detection mould piece is written as " WB ", read for second data stream,
Fig. 4 is that second data stream is the coordinate figure from all insertion points of the CAM layer of first data stream write-back U-shaped beam shape library, mould number, front and back detected value is to creating NC program, become mould set by the mould piece reading on the CAM layer of graphic data base, mould set is by obtaining mould INS coordinate, mould number, front and back detected value, then be assigned to the 1st of self-defined array (optimizing array pData) through the X coordinate of insertion point, the Y coordinate of insertion point is assigned to the 2nd of optimization array pData, mould number is assigned to the 3rd of optimization array pData, X coordinate+mould biasing of insertion point is assigned to the 4th of optimization array pData, front and back detected value is assigned to the 0th of optimization array pData, form and optimize array, optimize array through pressing mould number size sequence (by the 3rd of p Data), become orderly optimization array, optimize in order array and be divided into major queue by large main frame mould number (being 19-39), optimizing in order array is divided into from queue by little main frame mould number (being 1-18), major queue becomes orderly major queue by the ascending sequence of setovering of large main frame X coordinate+mould, become in order from queue by the ascending sequence of setovering of little main frame X coordinate+mould from queue, two ordered queues of principal and subordinate carry out analog simulation demonstration by the overanxious formula punching of X coordinate+mould biasing rank fusion, two ordered queues of principal and subordinate fetch data from the head of two queues respectively, get one group of data Group I from the head of major queue the biasing of this mould of X+ is assigned to variable Pz1, from get one group of data J group from multiple row, the biasing of this mould of X+ is assigned to variable Pz2 again, the relatively condition of the biasing of this mould of coordinate figure X+ in these two groups of data, X3xc is that little main frame moves horizontally (displacement is 500mm) along directions X
If meet and rush condition Pz2-Pz1 >=0 and Pz2 – Pz1 <=X3xc rushes simultaneously simultaneously
The little main frame one-shot of Pz1 > Pz2
The large main frame one-shot of Pz1 <=Pz2
Form three kinds of basic punching mode statements (little main frame one-shot, large main frame one-shot, two main frames rush simultaneously), the array of two queues of principal and subordinate all judges complete, and output forms NC program.
Claims (6)
1. a system for the adaptive mould of U-shaped soffit of girder face punching, is characterized in that it comprises as lower module:
Data definition module: data definition module definition die storehouse array, punching press array, optimization array, CAM layer, simulation layer and public variable, and die storehouse array, punching press array, optimize array and public variable and pass to CAD figure read module, dynamic adaptation die module, optimize module, analog simulation module, NC program creation module, to realize calling of the array of each module to the definition of data definition module and public variable;
Parameter arranges module: parameter arranges module and reads the parameter that forms are set, be stored in the public variable of data definition module definition, these parameters have program number, beam length, outside of belly width, thickness, X stroke, Y stroke and this part public variable are passed to dynamic adaptation die module, optimize module, analog simulation module, each functional module of NC program creation module;
Die storehouse operational module: die storehouse operational module reads the data of outer mold library file, each mould is set up mould block graphics and the data of each mould are put into die storehouse array with the form of piece, output mask storehouse array is to dynamic adaptation die module, optimization module, analog simulation module and NC program creation module, and output mask block graphics is to mould block graphics calling module, die storehouse write-back module and analog simulation module;
CAD figure read module: CAD figure read module reads all pixels of U-shaped beam shape library, therefrom filter out the entity that pixel title equals circle, obtain the wherein center of circle and two attributes of diameter, and the coordinate figure Y in the coordinate figure X in the center of circle, the center of circle and diameter value D are changed in the punching press array of data definition module definition, and the data of exporting punching press array are to dynamic adaptation die module;
Dynamic adaptation die module: all diameter data from the punching press array of CAD figure read module output are carried out to large main frame to dynamic adaptation die module and little main frame adds respectively die treatment in advance one time, the state that adds in advance mould according to large and small main frame forms two queues of principal and subordinate, each queue, by the ascending sequence of setovering of X+ mould separately, forms two ordered queues of principal and subordinate; According to only punching with two join position that hole, two main frames rush condition, beam parameter and Kong Liang and determine pre-punched hole main frame and stamping die number in advance simultaneously; Then according to pre-punched hole main frame and pre-stamping die number, the figure that calls the mould piece that this mould is number corresponding is written back in the CAM floor of U-shaped beam shape library by data definition module definition with the form of piece, reads for optimizing module;
Optimize module: the coordinate figure of optimizing coordinate figure, mould number that module reads all INSs of the CAM floor of the graphic data base of dynamic adaptation die module write-back, insertion point adds the mould biasing of this mould and puts into the optimization array by data definition module definition, optimize array and be divided into two queues of principal and subordinate, large main frame punching data are major queue, little main frame punching data are from queue, and individual queue is setovered ascending sequence the output optimization array data of having sorted to NC program creation module and analog simulation module by X+ mould;
Analog simulation module: analog simulation module is to optimizing the data in the optimization array of module output and rushing a little and punching path shows and outputs on the simulation layer of graphic data base by data definition module definition;
NC program creation module: NC program creation module according to optimize module output two ordered queues of sequence principal and subordinate data, fetch data from the head of two queues respectively, get one group of data from the head of major queue the biasing of this mould of X+ is assigned to variable Pz1, from get one group of data from queue, the biasing of this mould of X+ is assigned to variable Pz2 again, the relatively condition of the biasing of this mould of coordinate figure X+ in these two groups of data, X3xc is that little main frame moves horizontally along directions X, and displacement is 500mm;
If meet and rush condition: Pz2-Pz1 >=0 and Pz2 – Pz1 <=X3xc rushes simultaneously simultaneously;
Meet little main frame one-shot condition if do not meet the condition of rushing simultaneously: the little main frame one-shot of Pz1> Pz2;
If not meeting the condition of rushing does not meet little main frame one-shot condition yet and meets large main frame one-shot condition: the large main frame one-shot of Pz1 <=Pz2 simultaneously;
Form three kinds of basic punching mode statements: little main frame one-shot, large main frame one-shot, two main frames rush simultaneously; The array of two queues of principal and subordinate all judges complete, and output forms NC program.
2. the system of the adaptive mould of a kind of U-shaped soffit of girder face punching according to claim 1, is characterized in that described dynamic adaptation die module comprises:
By X order module: obtain data by X order module from the punching press array of CAD figure read module output, sort and export punching array to the prewired die module of large main frame by the X coordinate in the center of circle is ascending;
The large prewired die module of main frame: the large prewired die module of main frame obtains the X coordinate in the center of circle from the punching press array of CAD figure read module output, Y coordinate, diameter value and parameter arrange the public variable beam length that module is transmitted, outside of belly width, the relation of thickness determines which mould of which row who chooses lower row's mould, mould number is put into the large host test mould position of punching array, the biasing of X+ mould is put into large host test mould tool offset position, one group of hole of position, main hole adopts same mould adaptation, and export punching array to the prewired die module of little main frame,
The prewired die module of little main frame: the prewired die module of little main frame obtains the X coordinate in the center of circle from the punching press array of the prewired die module output of large main frame, Y coordinate, diameter value and parameter arrange the public variable beam length that module is transmitted, outside of belly width, the relation of thickness determines which mould of which row who chooses lower row's mould, mould number is put into the little host test mould position of punching array, the biasing of X+ mould is put into little host test mould tool offset position, one group of hole of position, main hole adopts same mould adaptation, and export punching array to large main frame order module,
Large main frame order module: large main frame order module is obtained data from the punching press array of the prewired die module output of little main frame, and by large host test mould tool offset position, the ascending sequence of punching press array the output punching press array that sorted is solely rushed to processing module to single host;
Single host solely rushes processing module: single host solely rushes processing module and obtain data from the punching press array of large main frame order module output, when judgement only has a large main frame to add mould, determine that large main frame is pre-punched hole main frame, mould position equals the prewired mould number of large main frame, and the biasing of X+ mould equals large host test mould tool offset; While only having a little main frame to add mould, determine that little main frame is pre-punched hole main frame, mould position equals the prewired mould number of little main frame, and the biasing of X+ mould equals little host test mould tool offset, and exports punching press array to adding hole sequence number module;
Add hole sequence number module: add hole sequence number module and obtain data from single host solely rushes the punching press array of processing module output, add hole sequence number in the hole sequence number of punching press array, so that two unified hole sequence number identifying holes for array, be second punching press array punching press array copy, and export these two punching press arrays to little main frame order module;
Little main frame order module: little main frame order module is obtained data from second punching press array of interpolation hole sequence number module output, and by little host test mould tool offset position, second ascending sequence of punching press array output have been sorted to two punching press arrays to solely rushing main frame and another host matching die block simultaneously;
Solely rush main frame and another host matching die block simultaneously: solely rush main frame and another host matching two punching press arrays that die block is exported from little main frame order module simultaneously and obtain data, when in first punching press array, judgement only has a large main frame to add mould, in second punching press array, search and meet two main frames and rush the hole that the little main frame of condition can rush simultaneously, and mark rushes simultaneously; When in second punching press array, judgement only has a little main frame to add mould; In first punching press array, search and meet two main frames and rush the hole that the large main frame of condition can rush simultaneously, and mark rushes simultaneously; And export two punching press arrays to two prewired while die blocks in hole of joining;
Two prewired while die blocks in hole of joining: two prewired while die blocks in hole of joining obtain data from solely rush main frame and another host matching two punching press arrays that die block is exported simultaneously, if the hole that in punching press array, central coordinate of circle and diameter are corresponding has two main frames can add mould, determine pre-punched hole main frame according to the condition of rushing simultaneously, and mark rushes simultaneously, and export two punching press arrays to two hole one-shot processing modules of joining;
Two hole one-shot processing modules of joining: two hole one-shot processing modules of joining are obtained data from two two punching press arrays of joining the die block output of prewired while of hole, judge central coordinate of circle and the satisfied condition of simultaneously rushing in hole corresponding to diameter in punching press array, the pre-one-shot of the large main frame of first paragraph, the pre-one-shot of other little main frames is also exported two punching press arrays to actual fit die module;
Actual fit die module: actual fit die module obtains data from two punching press arrays of joining hole one-shot processing module output, in each main frame, first determine row up and down according to Y value according to the numerical value of host number position, determine again bore dia and the mould number equating in die storehouse, mould number is put into mould position, and export punching press array to mould block graphics calling module;
Mould block graphics calling module: mould block graphics calling module is obtained mould number from the mould position of the punching array of actual fit die module output, obtains its shape output mask block graphics to mould piece write-back module the mould block graphics of exporting from die storehouse module according to this mould number;
Mould piece write-back module: mould piece write-back module is written back to mold shape U-shaped beam shape library on CAM layer in the mode of piece from the mould block graphics of mould block graphics calling module output, INS is central coordinate of circle and diameter corresponding Kong center by red display in punching press array; Piece is called mould number, reads for optimizing module.
3. the system of the adaptive mould of a kind of U-shaped soffit of girder face punching according to claim 1, it is characterized in that described NC program creation module also comprises: the hole of communications centre puts in place in advance below, its process is as follows: in the time of some main frame one-shots, the Y value in the hole of the communications centre of another main frame puts in place in advance.
4. a method for the adaptive mould of U-shaped soffit of girder face punching, is characterized in that it comprises the steps:
Data definition step: data definition step definition die storehouse array, punching press array, optimization array, CAM layer, simulation layer and public variable, and die storehouse array, punching press array, optimize array and public variable and pass to CAD figure read step, dynamic adaptation mould step, Optimization Steps, analog simulation step, NC program creation step, to realize calling of the array of each step to the definition of data definition step and public variable;
Parameter setting steps: parameter setting steps reads the parameter that forms are set, be stored in the public variable of data definition step definition, these parameters have program number, beam length, outside of belly width, thickness, X stroke, Y stroke and this part public variable are passed to dynamic adaptation mould step, Optimization Steps, analog simulation step, each functional steps of NC program creation step;
Die storehouse operation steps: die storehouse operation steps reads the data of outer mold library file, each mould is set up mould block graphics and the data of each mould are put into die storehouse array with the form of piece, output mask storehouse array is to dynamic adaptation mould step, Optimization Steps, analog simulation step and NC program creation step, and output mask block graphics is to mould block graphics invocation step, die storehouse write back step and analog simulation step;
CAD figure read step: CAD figure read step reads all pixels of U-shaped beam shape library, therefrom filter out the entity that pixel title equals circle, obtain the wherein center of circle and two attributes of diameter, and the coordinate figure Y in the coordinate figure X in the center of circle, the center of circle and diameter value D are changed in the punching press array of data definition step definition, and the data of exporting punching press array are to dynamic adaptation mould step;
Dynamic adaptation mould step: all diameter data from the punching press array of CAD figure read step output are carried out to large main frame to dynamic adaptation mould step and little main frame adds respectively die treatment in advance one time, the state that adds in advance mould according to large and small main frame forms two queues of principal and subordinate, each queue, by the ascending sequence of setovering of X+ mould separately, forms two ordered queues of principal and subordinate; According to only punching with two join position that hole, two main frames rush condition, beam parameter and Kong Liang and determine pre-punched hole main frame and stamping die number in advance simultaneously; Then according to pre-punched hole main frame and pre-stamping die number, the figure that calls the mould piece that this mould is number corresponding is written back in the CAM floor that U-shaped beam shape library defines by data definition step with the form of piece, reads for Optimization Steps;
Optimization Steps: the coordinate figure that Optimization Steps reads coordinate figure, mould number, the insertion point of all INSs of the CAM floor of the graphic data base of dynamic adaptation mould step write-back adds the mould biasing of this mould and puts into the optimization array being defined by data definition step, optimize array and be divided into two queues of principal and subordinate, large main frame punching data are major queue, little main frame punching data are from queue, and individual queue is setovered ascending sequence the output optimization array data of having sorted to NC program creation step and analog simulation step by X+ mould;
Analog simulation step: analog simulation step is to the data in the optimization array of Optimization Steps output and rush a little and punching path shows and outputs on the simulation layer that graphic data base defines by data definition step;
NC program creation step: NC program creation step is according to the data of two ordered queues of sequence principal and subordinate of Optimization Steps output, fetch data from the head of two queues respectively, get one group of data from the head of major queue the biasing of this mould of X+ is assigned to variable Pz1, from get one group of data from queue, the biasing of this mould of X+ is assigned to variable Pz2 again, the relatively condition of the biasing of this mould of coordinate figure X+ in these two groups of data, X3xc is that little main frame moves horizontally along directions X, and displacement is 500mm;
If meet and rush condition: Pz2-Pz1 >=0 and Pz2 – Pz1 <=X3xc rushes simultaneously simultaneously;
Meet little main frame one-shot condition if do not meet the condition of rushing simultaneously: the little main frame one-shot of Pz1> Pz2;
If not meeting the condition of rushing does not meet little main frame one-shot condition yet and meets large main frame one-shot condition: the large main frame one-shot of Pz1 <=Pz2 simultaneously;
Form three kinds of basic punching mode statements: little main frame one-shot, large main frame one-shot, two main frames rush simultaneously; The array of two queues of principal and subordinate all judges complete, and output forms NC program.
5. the method for the adaptive mould of a kind of U-shaped soffit of girder face punching according to claim 4, is characterized in that described dynamic adaptation mould step comprises:
By X ordered steps: obtain data by X ordered steps from the punching press array of CAD figure read step output, sort and export punching array to the prewired mould step of large main frame by the X coordinate in the center of circle is ascending;
The large prewired mould step of main frame: the large prewired mould step of main frame is obtained the X coordinate in the center of circle from the punching press array of CAD figure read step output, Y coordinate, the public variable beam length that diameter value and parameter setting steps transmit, outside of belly width, the relation of thickness determines which mould of which row who chooses lower row's mould, mould number is put into the large host test mould position of punching array, the biasing of X+ mould is put into large host test mould tool offset position, one group of hole of position, main hole adopts same mould adaptation, and export punching array to the prewired mould step of little main frame,
The prewired mould step of little main frame: the prewired mould step of little main frame is obtained the X coordinate in the center of circle from the punching press array of the prewired mould step output of large main frame, Y coordinate, the public variable beam length that diameter value and parameter setting steps transmit, outside of belly width, the relation of thickness determines which mould of which row who chooses lower row's mould, mould number is put into the little host test mould position of punching array, the biasing of X+ mould is put into little host test mould tool offset position, one group of hole of position, main hole adopts same mould adaptation, and export punching array to large main frame ordered steps,
Large main frame ordered steps: large main frame ordered steps is obtained data from the punching press array of the prewired mould step output of little main frame, and by large host test mould tool offset position, the ascending sequence of punching press array the output punching press array that sorted is solely rushed to treatment step to single host;
Single host solely rushes treatment step: single host solely rushes treatment step and obtain data from the punching press array of large main frame ordered steps output, when judgement only has a large main frame to add mould, determine that large main frame is pre-punched hole main frame, mould position equals the prewired mould number of large main frame, and the biasing of X+ mould equals large host test mould tool offset; While only having a little main frame to add mould, determine that little main frame is pre-punched hole main frame, mould position equals the prewired mould number of little main frame, and the biasing of X+ mould equals little host test mould tool offset, and exports punching press array to adding hole sequence number step;
Add hole sequence number step: add hole sequence number step and obtain data from single host solely rushes the punching press array for the treatment of step output, add hole sequence number in the hole sequence number of punching press array, so that two unified hole sequence number identifying holes for array, be second punching press array punching press array copy, and export these two punching press arrays to little main frame ordered steps;
Little main frame ordered steps: little main frame ordered steps is obtained data from add second punching press array of hole sequence number step output, and by little host test mould tool offset position, second ascending sequence of punching press array output have been sorted to two punching press arrays to solely rush main frame and another host matching rushes step simultaneously;
Solely rush main frame and another host matching rushes step simultaneously: solely rush main frame and another host matching and rush step simultaneously obtain data from two punching press arrays of little main frame ordered steps output, when in first punching press array, judgement only has a large main frame to add mould, in second punching press array, search and meet two main frames and rush the hole that the little main frame of condition can rush simultaneously, and mark rushes simultaneously; When in second punching press array, judgement only has a little main frame to add mould; In first punching press array, search and meet two main frames and rush the hole that the large main frame of condition can rush simultaneously, and mark rushes simultaneously; And export two punching press arrays to two prewired steps of rushing in hole of joining simultaneously;
Two prewired steps of simultaneously rushing in hole of joining: two prewired steps of simultaneously rushing in hole of joining are rushed from solely rushing main frame and another host matching two punching press arrays of step output simultaneously and obtained data, if the hole that in punching press array, central coordinate of circle and diameter are corresponding has two main frames can add mould, determine pre-punched hole main frame according to the condition of rushing simultaneously, and mark rushes simultaneously, and export two punching press arrays to two hole one-shot treatment steps of joining;
Two hole one-shot treatment steps of joining: two hole one-shot treatment steps of joining are from obtain data simultaneously two joining the prewired two punching press arrays of rushing step output in hole, judge central coordinate of circle and the satisfied condition of simultaneously rushing in hole corresponding to diameter in punching press array, the pre-one-shot of the large main frame of first paragraph, the pre-one-shot of other little main frames is also exported two punching press arrays to actual fit mould step;
Actual fit mould step: actual fit mould step is obtained data from two punching press arrays of joining hole one-shot treatment step output, in each main frame, first determine row up and down according to Y value according to the numerical value of host number position, determine again bore dia and the mould number equating in die storehouse, mould number is put into mould position, and export punching press array to mould block graphics invocation step;
Mould block graphics invocation step: mould block graphics invocation step obtains mould number from the mould position of the punching array of actual fit mould step output, obtains its shape output mask block graphics to mould piece write back step the mould block graphics of exporting from die storehouse step according to this mould number;
Mould piece write back step: mould piece write back step is written back to mold shape U-shaped beam shape library on CAM layer in the mode of piece from the mould block graphics of mould block graphics invocation step output, INS is central coordinate of circle and diameter corresponding Kong center by red display in punching press array; Piece is called mould number, reads for Optimization Steps.
6. the method for the adaptive mould of a kind of U-shaped soffit of girder face punching according to claim 4, it is characterized in that described NC program creation step also comprises: the hole of communications centre puts in place in advance below, its process is as follows: in the time of some main frame one-shots, the Y value in the hole of the communications centre of another main frame puts in place in advance.
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