CN101315643B - Preforging and finish forging mold design method based on computer system - Google Patents
Preforging and finish forging mold design method based on computer system Download PDFInfo
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- CN101315643B CN101315643B CN2008100399603A CN200810039960A CN101315643B CN 101315643 B CN101315643 B CN 101315643B CN 2008100399603 A CN2008100399603 A CN 2008100399603A CN 200810039960 A CN200810039960 A CN 200810039960A CN 101315643 B CN101315643 B CN 101315643B
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Abstract
The invention relates to a design method of pre-forging and finish forging forming dies based on a computer system, which comprises the steps that the design data information of finished rough is input, the parameter information of three-dimension rough is obtained by utilizing a three-dimension parametric template based on characteristics to carry out three-dimension modeling treatment, processing operation for generating a pre-forging cavity die, a finish forging cavity die, a cavity electrode die and a storage hopper electrode die is carried out by utilizing the parametric template, the processing operation for generating a forging die model and the relevant engineering drawing is carried out by utilizing the parametric template, the processing operation of the machining programming of the pre-forging die and the finish forging die and the machining programming of the electrode die is carried out. The adoption of the design method of the pre-forging and finish forging forming dies based on the computer system not only improves efficiency, shortens design period, reduces errors, is convenient to be modified and reduces the labor intensity of designers, but also has the three-dimension velocity of drawing at least faster than manual operation by five times and collects forged die design experience by quantized data to conclude the experience into a digitized form, with simple and convenient operation process, stable and reliable working performance and wider application range.
Description
Technical field
The present invention relates to field of computer aided design, particularly computer-aided design (CAD) shaping dies field specifically is meant a kind of pre-, finish-forging die design method based on computer system.
Background technology
In order to realize pre-, the finish-forging mould of numerically-controlled machine processing, corresponding three-dimensional plot must be arranged, existing method of drawing the mould three-dimensional plot at first will be drawn a large amount of X-Y schemes.These X-Y schemes comprise blank drawing, die blank figure, mold cavity figure, finish-forging blank electrode figure, blocking blank electrode figure, feed bin electrode figure, edger electrode figure etc.The general process of mould designer designing mould figure is that according to the blank drawing that the technological design personnel provide, the work that they mainly do is as follows:
(1) according to finished product blank drawing designing mould blank; (containing blocking blank and finish-forging blank)
(2) designing mould die cavity; (relating to technological parameters such as mold cavity, shrinkage factor, surplus)
(3) design finish-forging blank electrode; (relating to factors such as end product shape, discharging gap)
(4) design blocking blank electrode; (relating to factors such as pre-end shape of product, pre-terminal surplus, discharging gap)
(5) design feed bin electrode.(relate to the holding of slitter edge, factor such as width, discharging gap)
After all X-Y scheme completions, three-dimensional design personnel begin to design and produce three-dimensional model according to these X-Y schemes, and all models must be done one by one, give the programming personnel after the model completion, carry out processes programming, production process.This shows that three-dimensional manufacturing process is loaded down with trivial details, the time is very long, and workload is very big.If a certain size of blank drawing needs to revise, will relate to the change of all relevant drawings, just in case an omission is arranged, will make the mistake.And three-dimensional plot revises and more to bother than X-Y scheme, changes from the source sometimes to equal to make a new start, and brought very big inconvenience with regard to the work to the mould Design and Machining like this.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of and can effectively simplify the three-dimensional mould design process, shorten the Model Design cycle, improve design efficiency, simple to operation, stable and reliable working performance, the scope of application be comparatively widely based on pre-, the finish-forging die design method of computer system.
In order to realize above-mentioned purpose, of the present invention based on computer system pre-, finish-forging die design method is as follows:
Should be based on pre-, the finish-forging die design method of computer system, its principal feature is that described method may further comprise the steps:
(1) system imports finished product blank design data information according to user's operation;
(2) system utilizes based on the three-dimensional parameterized template of feature and carries out the three-dimensional modeling processing according to described finished product blank design data information, obtains the three-dimensional blank parameter information;
(3) system utilizes three-dimensional parameterized template to generate the processing operation of blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould according to described three-dimensional blank parameter information;
(4) system utilizes three-dimensional parameterized template to generate the processing operation of forging die model and correlation engineering figure according to described blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould;
(5) system carries out follow-up pre-, finisher machining prgraming and electrode mould machining prgraming is handled operation.
Should comprise blocking blank parametric variable template, finish-forging blank parametric variable template, blocking die cavity electrode parameter variable template, finish-forging die cavity electrode parameter variable template, blocking feed bin electrode parameter variable template and finish-forging feed bin electrode parameter variable template based on the three-dimensional parameterized template in pre-, the finish-forging die design method of computer system, and the parametric variable of each three-dimensional parameterized template is interrelated.
Should may further comprise the steps based on the processing operation of generation blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould in pre-, the finish-forging die design method of computer system:
(11) system utilizes described blocking blank parametric variable template and finish-forging blank parametric variable template to generate blocking swaging die and finish-forging swaging die respectively according to described three-dimensional blank parameter information;
(12) system utilizes described blocking die cavity electrode parameter variable template and finish-forging die cavity electrode parameter variable template to generate described die cavity electrode mould according to described blocking swaging die and finish-forging die cavity model;
(13) system utilizes described blocking feed bin electrode parameter variable template and finish-forging feed bin electrode parameter variable template to generate feed bin electrode mould according to described blocking swaging die, finish-forging swaging die material and three-dimensional blank parameter information.
Should be based on also comprising engineering drawing parametric variable template in the three-dimensional parameterized template in pre-, the finish-forging die design method of computer system, the processing operation of described generation forging die model and correlation engineering figure is specially:
System generates forging die model and relevant engineering drawing according to described blocking blank parametric variable template, finish-forging blank parametric variable template and engineering drawing parametric variable template.
This is pre-based on computer system, parametric variable in the finish-forging die design method comprises shrinkage factor, discharging gap, first compensation rate, second compensation rate, finish-forging die cavity electrode perimeter width, blocking die cavity electrode perimeter width, finish-forging die cavity electrode collar convex round bottom portion radius, finish-forging die cavity electrode collar convex ball radius surface, blocking die cavity electrode collar indent radius of circle, finish-forging feed bin electrode perimeter width, blocking feed bin electrode perimeter width, the feed bin electrode inner chamber degree of depth, feed bin electrode first width, feed bin electrode second width, feed bin electrode gradient, slitter edge thickness, center symmetry distance and circle center symmetry distance.
Pre-, the finish-forging die design method based on computer system of this invention have been adopted, because wherein according to the blank drawing that is provided, the parametric equation that utilizes template to set up, automatically finish three-dimensional modeling, make the series of products of same structure only need shared same template, compare with single making three-dimensional model method, this method has raises the efficiency, the shortening cycle, reduces errors, is convenient to advantage such as modification, and the speed in mould three-dimensional design response market improves greatly; Simultaneously,, not only reduce designer's labour intensity greatly, and drawing three-dimensional speed is than manual fast at least five times owing to application of new technology total correlation system, parallel design, real-time collaborative; Moreover, in the parameterized variables of software, except concrete size, also comprising every technical data pre-, the finish-forging mould, these have compiled the data through quantizing of mould deviser experience, as the compensation rate between shrinkage factor, discharging gap, slitter edge thickness, pre-, the finisher, pattern draft or the like, all in the parameter of software, obtain embodying, thereby the experience with the forging die design gathers cleverly, and be generalized into digitized form, operating process is simple and convenient, and stable and reliable working performance, the scope of application are comparatively extensive.
Description of drawings
Fig. 1 is the workflow diagram of pre-, the finish-forging die design method based on computer system of the present invention.
Fig. 2 is the three-dimensional mould synoptic diagram of pre-, the finish-forging die design method based on computer system of the present invention.
Fig. 3 is the three dimensional type cavity electrode synoptic diagram of pre-, the finish-forging die design method based on computer system of the present invention.
Fig. 4 is a three-dimensional finished product blank design data information inputting interface synoptic diagram in the embodiment of pre-, the finish-forging die design method based on computer system of the present invention.
Revise parametric variable in the embodiment of Fig. 5 for pre-, the finish-forging die design method based on computer system of the present invention and regenerate forging die model and operation interface synoptic diagram.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also Fig. 1 to shown in Figure 3, should may further comprise the steps based on pre-, the finish-forging die design method of computer system:
(1) system imports finished product blank design data information according to user's operation;
(2) system utilizes based on the three-dimensional parameterized template of feature and carries out the three-dimensional modeling processing according to described finished product blank design data information, obtains the three-dimensional blank parameter information;
(3) system utilizes parameterized template to generate the processing operation of blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould according to described three-dimensional blank parameter information; This parameterized template comprises blocking blank parametric variable template, finish-forging blank parametric variable template, blocking die cavity electrode parameter variable template, finish-forging die cavity electrode parameter variable template, blocking feed bin electrode parameter variable template and finish-forging feed bin electrode parameter variable template, and the parametric variable of each parameterized template is interrelated; Described parametric variable comprises shrinkage factor, discharging gap, first compensation rate, second compensation rate, finish-forging die cavity electrode perimeter width, blocking die cavity electrode perimeter width, finish-forging die cavity electrode collar convex round bottom portion radius, finish-forging die cavity electrode collar convex ball radius surface, blocking die cavity electrode collar indent radius of circle, finish-forging feed bin electrode perimeter width, blocking feed bin electrode perimeter width, the feed bin electrode inner chamber degree of depth, feed bin electrode first width, feed bin electrode second width, feed bin electrode gradient, slitter edge thickness, center symmetry distance and circle center symmetry distance; Generate the processing operation of blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould, may further comprise the steps:
(a) system utilizes described blocking blank parametric variable template and finish-forging blank parametric variable template to generate blocking swaging die and finish-forging swaging die respectively according to described three-dimensional blank parameter information;
(b) system utilizes described blocking die cavity electrode parameter variable template and finish-forging die cavity electrode parameter variable template to generate described die cavity electrode mould according to described blocking swaging die and finish-forging die cavity model;
(c) system utilizes described blocking feed bin electrode parameter variable template and finish-forging feed bin electrode parameter variable template to generate feed bin electrode mould according to described blocking swaging die, finish-forging swaging die material and three-dimensional blank parameter information;
(4) system utilizes parameterized template to generate the processing operation of forging die model and correlation engineering figure according to described blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould, is specially:
System generates forging die model and relevant engineering drawing according to described blocking blank parametric variable template, finish-forging blank parametric variable template and engineering drawing parametric variable template;
(5) system carries out follow-up pre-, finisher machining prgraming and electrode mould machining prgraming is handled operation.
In the middle of practical application, the basic design philosophy of the present invention is to utilize this magical weapon of parametrization, manual process, automatically finish on computers by software, that the present invention is mainly used in the field of surgical is pre-, finish-forging mould three-dimensional design and processing, utilization UG_sketch module, with relevant dimensional parametersization, blank, electrode, mould are set up corresponding plate on request separately by design.As long as give to form the lines parameter assignment of pre-, finish-forging blank, electrode, mold graph, through the computer computing, just can generate required blank three-dimensional modeling automatically, finish-forging mould three-dimensional modeling in advance,, finish-forging die cavity electrode mould three-dimensional modeling in advance,, feed bin electrode mould three-dimensional modeling, and required corresponding engineering drawing.
The present invention realizes above function by following template:
(1) based on the three-dimensional parameterized template of feature---finish three-dimensional modeling automatically according to the blank data;
(2) pre-, finish-forging template---according to the parameter of three-dimensional blank, generate pre-, finish-forging swaging die automatically;
(3) die cavity electrode template---generate die cavity electrode mould automatically according to pre-, finisher;
(4) feed bin electrode template---generate feed bin electrode mould automatically according to pre-, finisher and blank;
(5) in advance finish-forging mould and engineering drawing template,---generate forging die model and relevant engineering drawing automatically.
More than interrelated between several templates, if revise a certain data of blank drawing, the corresponding data of all templates can upgrade automatically.The making of all templates simultaneously all realizes with parameter, each parametric variable is after obtaining corresponding data, just can be updated to the product model of different size, again because be that complete shut-down joins between product and electrode, the mould, intermodule has been set up the mathematical relation of state-variable, so just can in time generate the electrode and the mould of same specification, Here it is in advance, the intension thought place of finisher three-dimensional parameter moulding.
With the operating scissors in the operating theater instruments is example, and blank dimension parameter marking explanation wherein is as follows:
(1) generate the basic parameter that new spec need be imported:
L1 scissors length overall R6
Head endWidth arc size 2
L2 removes
The cutting edge partThe long R7 of outer scissors
The cutting edge partWidth connects arc size 1
L3
Bar portionLength 1 (
Upper boomThe width measure place) R8
The cutting edge partWidth connects arc size 2
L4
Bar portionLength 2 (
Gill angleProcess redundancy) R9
The cutting edge partShort transverse connects arc size
L5
The cutting edge partThe length R10 of circular arc restriction point
Head endThe short transverse arc size
L6
Head endThe R11 of width measure place encloses outer chamfering
L7
Lower beamThe width measure place.The outer chamfering of 20 ° of directions of the R12 knife back
L8 circle, bar connect the circular arc minimum point with
Circle portionPeak apart from T1
Head endHighly
B1
Head endWidth T2
Gill portionHighly
B2
Gill portionWidth T3
Bar portionBig end height
B3
Upper boomWidth T4
Circle portionHighly
B4
Lower beamWidth T12 circular arc (R9) is the height of straight line relatively
B5 circle center to the bar inboard apart from T11
Head endEdge of a knife thickness
B6 circle center is arrived apart from the T22 head end to the scissors center
Between the gill portionEdge of a knife thickness
The B11 center line is positioned at
Head endPosition Rb1
* Head endThe cross section respectively connects circular arc such as Rb11, Rb12, Rb13
B12 circular arc (R7) is the width Rb2 of straight line relatively
* Gill portionThe cross section respectively connects circular arc such as Rb21, Rb22, Rb23
B21 circular arc (R8) is the width Rb3 of straight line relatively
* Upper boomThe cross section respectively connects circular arc such as Rb31, Rb32, Rb33
R0 acquiescence chamfering Rb4
* Lower beamThe cross section respectively connects circular arc such as Rb41, Rb42, Rb43
R1 circle external diameter radius size A0 circle external diameter pattern draft
R2 circle internal diameter radius size A1 cutting edge angle
R3 circle, bar connect arc size A2 bar portion, each cross section pattern draft (end) of gill portion
The R4 bar is inboard to be connected arc size A4 circle, bar connecting portion pattern draft with the circle external diameter
R5
Head end Width arc size 1 A3 bar portion, each cross section pattern draft (in advance) of gill portion
(2) generate the technological parameter that new spec is adjusted possibly:
SK shrinkage factor U1 finish-forging die cavity electrode collar convex round bottom portion radius
GAP discharging gap U2 finish-forging die cavity electrode collar convex ball radius surface
E1W finish-forging die cavity electrode perimeter width E11W finish-forging feed bin electrode perimeter width
E2W blocking die cavity electrode perimeter width E22W blocking feed bin electrode perimeter width
H feed bin electrode inner chamber degree of depth F1 slitter edge thickness
11 feed bin electrode widths, 1 M1 center symmetry distance
12 feed bin electrode widths, 2 N1 center symmetry distances
TAP feed bin electrode gradient
Below be example with operating scissors, introduce using method and operation steps respectively:
The operating scissors masterplate comprises three parts, is respectively blank, electrode and mould, but with two directory areas separately.
The use of (1) first catalogue " ELE " file:
The All Files inventory is as follows under " ELE " catalogue:
A, with all template files of E1-E13 copy to another working directory ELE under.
B, use blank drawing size, in " .exp " of sky file, insert corresponding blank basic parameter one by one as a certain specifications parameter file according to operating scissors blank parameter annotation formatting.
C, see also shown in Figure 4ly, in UG Modeling module, the user at first opens E1, from " Tool-Expresion-Inport " import the specifications parameter file filled in (
*.exp) after, carry out " OK ", the file current state is changed automatically.
D, open the E2-E13 masterplate successively then, each file all can be automatically updated to the corresponding 3D file of this specification respectively, can finish all corresponding blanks and electrode 3D design.
E, in UG Drafting module, use update view to finish the automatic renewal of E7-E132D drawing masterplate, and do local manual setting and size marking, can finish all corresponding 2D drawings designs.
F, treat under the ELE catalogue that All Files upgrades after, deposit closes all, and enters the mold catalogue then.
The use of (2) second catalogue " MOLD " files
The All Files inventory is as follows under " MOLD " catalogue:
A, with all template files of M1-M13 copy to another working directory mold under.
B, use the blank drawing size according to operating scissors blank parameter annotation formatting, insert corresponding blank basic parameter as a certain specifications parameter file in " .exp " of sky file, this file must be identical with the data imported in " ELE " catalogue.
C, in UG Modeling module, the user at first opens M1, from " Tool-Expresion-Inport " import the specifications parameter file filled in (
*.exp) after, carry out " OK ", the file current state is changed automatically.(the software inputting interface is seen figure four)
D, open the M2-M13 masterplate successively then, make each masterplate file all be automatically updated to the corresponding document of this specification respectively, the mould three-dimensional plot generates automatically, and M11 is a patrix, and M12 is a counterdie, and M13 is the upper and lower mould wiring layout.
E, in UG Drafting module, use update view to finish the automatic renewal of M11-M132D drawing masterplate, and do local manual setting and size marking, can finish all corresponding 2D drawings designs.
F, treat under the MOLD catalogue that All Files upgrades after, deposit.
Illustrate: UG uses version---UG NX3.
(3) machining prgraming
A, mold cavity processing; In UG Manufacturing module, can directly use M11, M12 three dimensional file, set relevant cutting parameter, job operation and driving method, generate job sequence, send into the machining center lathe and process.
B, electrode model processing; In UG Manufacturing module, can directly use the E9-E13 three dimensional file, set relevant cutting parameter, job operation and driving method, generate job sequence, send into the machining center lathe and carry out electrode processing.
C, see also shown in Figure 5, if revise a certain size of blank, after all parametrization files refresh automatically, red symbols can appear in the program items front end in the processing module, it shows that data change, this moment is the generation new procedures as long as click generation order (Generating) software can be made amendment automatically, and red symbols promptly disappears.
Above-mentioned pre-, finish-forging die design method have been adopted based on computer system, because wherein according to the blank drawing that is provided, the parametric equation that utilizes template to set up, automatically finish three-dimensional modeling, make the series of products of same structure only need shared same template, compare with single making three-dimensional model method, this method has raises the efficiency, the shortening cycle, reduces errors, is convenient to advantage such as modification, and the speed in mould three-dimensional design response market improves greatly; Simultaneously,, not only reduce designer's labour intensity greatly, and drawing three-dimensional speed is than manual fast at least five times owing to application of new technology total correlation system, parallel design, real-time collaborative; Moreover, in the parameterized variables of software, except concrete size, also comprising every technical data pre-, the finish-forging mould, these have compiled the data through quantizing of mould deviser experience, as the compensation rate between shrinkage factor, discharging gap, slitter edge thickness, pre-, the finisher, pattern draft or the like, all in the parameter of software, obtain embodying, thereby the experience with the forging die design gathers cleverly, and be generalized into digitized form, operating process is simple and convenient, and stable and reliable working performance, the scope of application are comparatively extensive.
In this instructions, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (5)
1. pre-, finish-forging die design method based on a computer system is characterized in that described method may further comprise the steps:
(1) system imports finished product blank design data information according to user's operation;
(2) system utilizes based on the three-dimensional parameterized template of feature and carries out the three-dimensional modeling processing according to described finished product blank design data information, obtains the three-dimensional blank parameter information;
(3) system utilizes three-dimensional parameterized template to generate the processing operation of blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould according to described three-dimensional blank parameter information;
(4) system utilizes three-dimensional parameterized template to generate the processing operation of forging die model and correlation engineering figure according to described blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould;
(5) system carries out follow-up pre-, finisher machining prgraming and electrode mould machining prgraming is handled operation.
2. pre-, finish-forging die design method based on computer system according to claim 1, it is characterized in that, described three-dimensional parameterized template comprises blocking blank parametric variable template, finish-forging blank parametric variable template, blocking die cavity electrode parameter variable template, finish-forging die cavity electrode parameter variable template, blocking feed bin electrode parameter variable template and finish-forging feed bin electrode parameter variable template, and the parametric variable of each three-dimensional parameterized template is interrelated.
3. pre-, finish-forging die design method based on computer system according to claim 2 is characterized in that, the processing operation of described generation blocking swaging die, finish-forging swaging die, die cavity electrode mould and feed bin electrode mould may further comprise the steps:
(11) system utilizes described blocking blank parametric variable template and finish-forging blank parametric variable template to generate blocking swaging die and finish-forging swaging die respectively according to described three-dimensional blank parameter information;
(12) system utilizes described blocking die cavity electrode parameter variable template and finish-forging die cavity electrode parameter variable template to generate described die cavity electrode mould according to described blocking swaging die and finish-forging die cavity model;
(13) system utilizes described blocking feed bin electrode parameter variable template and finish-forging feed bin electrode parameter variable template to generate feed bin electrode mould according to described blocking swaging die, finish-forging swaging die material and three-dimensional blank parameter information.
4. pre-, finish-forging die design method based on computer system according to claim 2, it is characterized in that, also comprise engineering drawing parametric variable template in the described three-dimensional parameterized template, the processing operation of described generation forging die model and correlation engineering figure is specially:
System generates forging die model and relevant engineering drawing according to described blocking blank parametric variable template, finish-forging blank parametric variable template and engineering drawing parametric variable template.
5. according to each described pre-based on computer system in the claim 2 to 4, finish-forging die design method, it is characterized in that described parametric variable comprises shrinkage factor, discharging gap, first compensation rate, second compensation rate, finish-forging die cavity electrode perimeter width, blocking die cavity electrode perimeter width, finish-forging die cavity electrode collar convex round bottom portion radius, finish-forging die cavity electrode collar convex ball radius surface, blocking die cavity electrode collar indent radius of circle, finish-forging feed bin electrode perimeter width, blocking feed bin electrode perimeter width, the feed bin electrode inner chamber degree of depth, feed bin electrode first width, feed bin electrode second width, feed bin electrode gradient, slitter edge thickness, center symmetry distance and circle center symmetry distance.
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| CN103530452B (en) * | 2013-09-30 | 2016-05-18 | 南京航空航天大学 | A kind of hollow blade near-net-shape flattens Billet Calculation method |
| CN106040930B (en) * | 2016-05-30 | 2017-10-10 | 中国航空工业集团公司北京航空材料研究院 | Especially big Type Titanium Alloy frame short route forging method |
| CN111650880B (en) * | 2020-05-15 | 2022-01-25 | 成都飞机工业（集团）有限责任公司 | Programming method for batch creation of deburring tool path based on UG/NX |
| CN113792472B (en) * | 2021-10-29 | 2022-02-22 | 浙江大学 | Device and method for providing multi-parameter allowed assignment range in computer aided design system |
| CN117034474B (en) * | 2023-06-12 | 2024-03-22 | 湖北三环锻造有限公司 | Quick design and optimization method for pre-forging die based on isothermal surface method |
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