CN101690980A - Machine tool design method - Google Patents
Machine tool design method Download PDFInfo
- Publication number
- CN101690980A CN101690980A CN200910107685A CN200910107685A CN101690980A CN 101690980 A CN101690980 A CN 101690980A CN 200910107685 A CN200910107685 A CN 200910107685A CN 200910107685 A CN200910107685 A CN 200910107685A CN 101690980 A CN101690980 A CN 101690980A
- Authority
- CN
- China
- Prior art keywords
- machine tool
- physical model
- tool design
- design method
- lathe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Numerical Control (AREA)
Abstract
The invention provides a machine tool design method, comprising the steps of a) creating a machine tool physical model according to parts processing technology and assembling technology, b) exerting a driving signal to the physical model and measuring the platform dynamic precision, c) transferring the physical model into a mathematical model and solving, d) analyzing the parameters and optimizing the machine tool design. The machine tool design method of the invention directly uses the dynamic property of machine tool as the evaluating object, rigid body dynamics calculation as the manner of analyzing and combined property parameter of motor function element as analyzing and optimizing object, having the advantages of clear target, reasonable method, convenient analysis, etc.
Description
Technical field
The present invention relates to the Machine Tool design field, relate in particular to a kind of machine tool design method that has improved.
Background technology
PCB (printed circuit board (PCB)) twist drill, to mill high-precision Digit Control Machine Tool such as machine be a kind of modern industry electronics, and it relates to accurate manufacturing technology, automatic control technology, information processing, transmission etc., characteristics such as has at a high speed, high-accuracy.This type of high speed, high-accuracy machine tool mechanical body have following design feature: 1, transmission, accurate positioning; 2, inertia is little, rigidity is high, vibration is little.In traditional design, design, type selecting, the check of element size emphasized in the design of this lathe, only paid attention to the structure space Position Design, whether all the other performance requirements can reach requirement, it mainly is the experience that relies on designer self, do not have extraordinary evaluation index, design process is scientific and reasonable inadequately.
Summary of the invention
The purpose of this invention is to provide a kind of machine tool design method, be intended to solve the scientific and reasonable inadequately defective of existing machine tool method for designing.
Machine tool design method provided by the invention may further comprise the steps:
Step a according to part mechanical processing technique and assembly technology, sets up the lathe physical model;
Step b applies the driving signal to physical model, the measuring table dynamic accuracy;
Step c is converted into Mathematical Modeling with physical model and finds the solution;
Steps d is analyzed and with this Machine Tool design is optimized parameter.
More specifically, described execution in step a further comprises:
Step a1 sets up lathe three-dimensional digital assembling model;
Step a2 utilizes the dynamics software systems to set up the lathe physical model.
More specifically, described steps d further comprises to the spatial distribution dimensional parameters and to flexibly connecting stiffness parameters analysis.
More specifically, the physical model among the described step a is that y is to the motion physical model.
More specifically, adopt Adams software to set up the lathe physical model among the described step a.
Machine tool design method provided by the invention is to utilize dynamics technology, directly show as evaluation index with the lathe dynamic property, how definite performance parameter and compound mode that influences the multiple motor function components and parts of machine tool motion performance is chosen as movement parts guide rail, slide block pair, screw mandrel, screw thread pair performance parameter; Two kinds of motor function parts how space layout and combination make the lathe operation reach good stationarity requirement.In addition, the present invention has good versatility, can analyze other functional part of lathe, and determines when functional part assembles, and the different dynamic performance of initiation lathe dynamically shows the optimal design assembly parameter according to lathe by assembly parameter is different.The machine tool design method that the present invention proposes is an evaluation objective with the lathe dynamic property directly, be calculated as analysis means with dynamics of rigid bodies, with motor function element composite behaviour parameter is the analysis optimization object, have with clearly defined objective, means rationally, analyze advantage easily.
Description of drawings
Fig. 1 is the flow chart of machine tool design method of the present invention;
Fig. 2 is the kinetic model solution procedure schematic diagram that the present invention relates to;
Fig. 3 is that guide rail, screw mandrel distributed dimension parameter are provided with schematic diagram;
Fig. 4 Fig. 5 is the tracing analysis figure at Fig. 3.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Machine tool design method provided by the invention is to utilize the dynamic analysis means, determines the performance parameter and the assembled state of machine tool motion functor, makes that the lathe actuating unit can even running, and lathe moves the structural vibration that inertia institute should rise by drive part and reaches minimum.
Preferred embodiment of the present invention is to set up the Digit Control Machine Tool kinetic model in computer, with the dynamic property performance (machine tool motion track) of kinetic model under the driving force effect serves as to estimate foundation, the parameter and the location layout of design and optimization motor function components and parts, utilize modern dynamic design method type selecting, installation and layout motor function components and parts, make it reach best performanceization, improve the dynamic accuracy of motion platform to greatest extent.Shown in Fig. 1, machine tool design method provided by the invention specifically may further comprise the steps:
Step 111 is set up lathe three-dimensional digital assembling model.Digital model comprises complete parts geological information, parts relative tertiary location information, parts material information etc.Digital model has consistent appearance and size with material object, adds qualitative attribute according to material in kind, and the digital-to-analogue that contains quality information is being consistent with material object aspect the physical characteristics such as weight, centroid position, inertia.Digital model adds with assembly technology by machine finishes virtual assembling in software environment, assembling back model need be checked parts mutual alignment relation, have or not design defect, whether has contents such as whether mutual interference, complete machine weight meet the requirements.
Step 112 utilizes dynamics software (Adams software) system to set up the lathe physical model.Set up the lathe physical model and will determine lathe rigid multibody dynamics model exactly, in Adams software, each type games hinge is set for above-mentioned digital model, as cylindrical pair, revolute, moving sets, planar contact pair, screw thread pair etc., the kinetic model that adds after motion is cut with scissors can be realized kinematics emulation.After the machine tool motion constraint is finished in setting, need locate to be provided with flexible the connection at model, key elements such as increase power unit and external force, power unit size, direction are added by practical set technology.After power unit was provided with and finishes, the Machine Tool Dynamics model was set up substantially.
After all kinds of kinematic pairs of digital model and interpolation power unit were set, can two class variable elements partly be set at slide block, guide rail and critical movements functors such as screw mandrel, nut: the first kind was the spatial distribution dimensional parameters; Second class is to flexibly connect stiffness parameters.Motor function part space arrangement parameter is set, and this parameter is adjusted, whole model can at utmost be reduced because the unreasonable driving off-centre of bringing of size design, problem such as support structures is asymmetric and the mechanism kinematic deviation that causes.After the motor function part set up spatial parameter, kinetic model adopted cartesian approach to carry out mathematical modeling, and general expression formula is
Ψ is the system restriction equation; λ is a Lagrange multiplier; M, Q are quality diagonal matrix and broad sense array.
Utilize dynamics software that the parameter that flexibly connects of motor function part is set, as slide block flexibly connect with workbench, nut seat is connected with workbench; When setting flexibly connects parameter, reacted the true relation of interaction force and moment between object and the object; In workbench high-speed motion process, the interaction force size and Orientation changes between the parts owing to connection tightness difference causes, and the performance of platform dynamic trajectory is also just different; When the mass motion system does not exist when flexibly connecting, platform motion only is the ideal trajectory curve, and fails to show the real motion state, as system vibration, instruction followability and robust motion.Utilize dynamics software (Adams) that the motor function parts are flexibly connected and carry out the parameter setting and adjustment is one of core technology, the setting of parameter and the true assembly technology of conditioned reaction.
Because motor function part location parameter and flexibly connect parameter is regulated two kinds of parameter values and directly determined this curvilinear motion tendency, this plots changes regulates and bad standard as evaluating.
Fig. 3 is that guide rail, screw mandrel distributed dimension parameter are provided with schematic diagram, it comprises workbench 30, adapter 31, slide block 32, guide rail 33, Fig. 4, Fig. 5 are analytic curves, analysis learns that the table top vertical range of leading screw center and workbench 30 is big more, and deviation is also just obvious more, location precision to workbench 30 is also just big more, so in design process, should driving be arranged on the load centre point, as far as possible to reduce the positioning accuracy deviation; In conjunction with the actual design situation, slide block 32 should be as the comparatively ideal putting position of leading screw with the design space between guide rail 33 faying faces to workbench 30 point midways and slide block 32, and it is more reasonable that parameter value is got between the 0-30mm.
The above only is preferred embodiment of the present invention, and in order to restriction the present invention, for example the present invention not only is not confined to be applied in the PCB numeric control drilling machine tool, can also be applied to the lathe of other types.All any modifications of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. machine tool design method is characterized in that may further comprise the steps:
Step a according to part mechanical processing technique and assembly technology, sets up the lathe physical model;
Step b applies the driving signal to physical model, the measuring table dynamic accuracy;
Step c is converted into Mathematical Modeling with physical model and finds the solution;
Steps d is analyzed and with this Machine Tool design is optimized parameter.
2. machine tool design method according to claim 1 is characterized in that, described execution in step a further comprises:
Step a1 sets up lathe three-dimensional digital assembling model;
Step a2 utilizes the dynamics software systems to set up the lathe physical model.
3. machine tool design method according to claim 1 is characterized in that, described steps d further comprises to the spatial distribution dimensional parameters and to flexibly connecting stiffness parameters analysis.
4. machine tool design method according to claim 1 is characterized in that, the physical model among the described step a is that y is to the motion physical model.
5. machine tool design method according to claim 1 is characterized in that, adopts Adams software to set up the lathe physical model among the described step a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107685A CN101690980A (en) | 2009-06-05 | 2009-06-05 | Machine tool design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107685A CN101690980A (en) | 2009-06-05 | 2009-06-05 | Machine tool design method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101690980A true CN101690980A (en) | 2010-04-07 |
Family
ID=42079722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910107685A Pending CN101690980A (en) | 2009-06-05 | 2009-06-05 | Machine tool design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101690980A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043876A (en) * | 2010-10-12 | 2011-05-04 | 北京航空航天大学 | Machine tool moving part realizing method capable of meeting high-acceleration requirement |
| CN104050317A (en) * | 2014-06-10 | 2014-09-17 | 华中科技大学 | Method for obtaining dynamic accuracy of machine tool |
| CN109324570A (en) * | 2018-10-16 | 2019-02-12 | 南京艾提瑞精密机械有限公司 | A kind of Machine Tool design optimization method based on the processing pre- structure of pattern |
| CN111460599A (en) * | 2019-01-02 | 2020-07-28 | 大族激光科技产业集团股份有限公司 | Design method of laser welding fixture |
-
2009
- 2009-06-05 CN CN200910107685A patent/CN101690980A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043876A (en) * | 2010-10-12 | 2011-05-04 | 北京航空航天大学 | Machine tool moving part realizing method capable of meeting high-acceleration requirement |
| CN102043876B (en) * | 2010-10-12 | 2012-07-04 | 北京航空航天大学 | Machine tool moving part realizing method capable of meeting high-acceleration requirement |
| CN104050317A (en) * | 2014-06-10 | 2014-09-17 | 华中科技大学 | Method for obtaining dynamic accuracy of machine tool |
| CN109324570A (en) * | 2018-10-16 | 2019-02-12 | 南京艾提瑞精密机械有限公司 | A kind of Machine Tool design optimization method based on the processing pre- structure of pattern |
| CN109324570B (en) * | 2018-10-16 | 2021-04-20 | 南京艾提瑞精密机械有限公司 | Machine tool design optimization method based on machining appearance pre-configuration |
| CN111460599A (en) * | 2019-01-02 | 2020-07-28 | 大族激光科技产业集团股份有限公司 | Design method of laser welding fixture |
| CN111460599B (en) * | 2019-01-02 | 2024-03-26 | 大族激光科技产业集团股份有限公司 | Design method of laser welding fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103425842B (en) | A kind of parallel robot rapid development system and method | |
| CN102472683B (en) | Method for evaluating collision performance of vehicle member, and member collision test device used for same | |
| Kono et al. | Evaluation of modelling approaches for machine tool design | |
| US9593927B2 (en) | Dynamical monitoring and modelling of a coordinate measuring machine | |
| Fortunato et al. | The virtual design of machining centers for HSM: Towards new integrated tools | |
| CN102096749A (en) | Static and modal analysis method of numerical control machine tool with linear guide rails | |
| CN105043753A (en) | Vehicle body installation fixing point static rigidity test bench and test method thereof | |
| CN101639681B (en) | Method for optimizing performance parameters of movement mechanism of electronic equipment | |
| Xiangsheng et al. | Effects of machine tool configuration on its dynamics based on orthogonal experiment method | |
| Zhang et al. | Hybrid dynamic modeling and analysis of a ball-screw-drive spindle system | |
| CN101690980A (en) | Machine tool design method | |
| CN104794272A (en) | Machining method of airplane component | |
| CN104050317B (en) | Method for obtaining dynamic accuracy of machine tool | |
| CN103921954B (en) | Based on the digitalisation calibrating method of the aircraft target ship assembly deflections of three-axis numerical control steady arm | |
| CN103950552B (en) | Based on the digitalisation calibrating method of the aircraft target ship assembly deflections of six Shaft and NC Machining Test steady arms | |
| Yang et al. | Static and dynamic characteristics modeling for CK61125 CNC lathe bed basing on FEM | |
| CN102279126B (en) | Method for determining material performance parameter by combination of testing and CAE simulation | |
| Shi et al. | Cutting force and chatter stability analysis for PKM-based helical milling operation | |
| CN102622459B (en) | Flexible body dynamics analysis method of large-scale hard rail machining center | |
| CN103927411B (en) | Design method of gantry laser cutting machine | |
| CN102117357A (en) | Weight-reducing optimal design method for parts of PCB (printed circuit board) numerical control drilling and milling machine | |
| CN102029553A (en) | Supporting method of motion platform of machine tool | |
| CN109614748B (en) | Structure optimization method for improving dynamic characteristics of machine tool by combining test and simulation technology | |
| CN105798706A (en) | Terminal accuracy gravity compensation method for aircraft panel horizontal type automatic boring and riveting machine | |
| CN108297130B (en) | Weight reduction method for palletizing robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100407 |