機(jī)床刀具設(shè)計(中英文)

1、Design Of Tool Machine PropThe original knife machine control procedures are designed individually, not used to ol management system, features a single comparison, the knife only has to find the tool kn ife, knife positioning the shortest path, axis tool change, but does not support large-scale t oo

2、l.Automatic knife in the knife election, in the computer memory knife-election on the basis of using the Siemens 840 D features, and the election procedures knife more concise , and complete the space Daotao View. ATC use the knife rapid completion of STEP-7 pr ogramming, and have been tested in pra

3、ctice. In the positioning of the knife, PLC controll ed modular design method, which future production of similar machines will be very bene ficial, it is easy to use its other machine. Automatic tool change systems will be faster gro wth, reduced tool change time, increase the positioning accuracy

4、tool is an important mea ns to help NC technology development. Tool and inventory components of modern prod uction is an important link in the management, especially for large workshop management . The traditional way of account management, and low efficiency, high error rate, and not sharing inform

5、ation and data, tools and the use of state can not track the life cycle, are una ble to meet the current information management needs. With actual production, we have t o establish a workshop tool for the three-dimensional tool storage system to meet the knif e workshop with auxiliary storage and ma

6、nagement needs.1.Force Modeling And Research Index Able Insert CarWith the rapid development of science and technology,hard alloy as the cutting tool material has generally applied to metal cutting, the pros and cons of cutting performance of Carbide index able inserts,directly affects the efficienc

7、y and processing quality of production and processing.The research on cemented carbide index able inserts groove and cutting force has been a concern problem of people. Three dimensional chip breaking groove type index able inserts have many good points, such as the chip breaking performance is good

8、, the chip breaking range, the long service life and so on. So the chip breaking groove has become an important issue for the scholars study. Because of the complexity of 3D chip breaking groove type chip breaking process, at present, the study on cutting force is still in the initial stage. The sys

9、tematic research on the orthogonal cutting force model of three dimensional grooves inserts, and the establishments of cutting force prediction model and related test research have the important theory1significance and practical value. In this paper, on the basis of experiment, modeling turning inse

10、rts groove effect on cutting performance and cutting force of cemented carbide are studied theoretically and experimentally.First of all, the paper of chip-breaking groove studies and the significance of cutting force, analysis of the structure, function and classification of chip breaking groove. S

11、ummarizing the general research situation and the results of domestic and foreign scholars in the chip breaking groove studies and cutting force model.Then, the paper analyzes the main factors affecting the cutting performance of tool in metal cutting process. The two aspects that the angle of the c

12、utting tool and chip breaking groove geometric dimensions were discussed, and analyzes the influence of cutting parameters and tool geometry parameters, cutting tool material, cutting fluid and work piece material on cutting force. Get the influence law of different cutting parameters on cutting for

13、ce based on the cutting force.Then, the comparison test that different groove inserts on the processing of the same material of cutting force is did. Discussing the influence of three kinds III of blade groove structure on the performance of chip breaking and cutting force. Points out the advantages

14、 of a new type of three-dimensional groove of MP on the structure And material, and gives the best cutting dosage of the model groove in the test range.Finally, from the theory, the shear angle model was established according to the minimum energy method for solving. From the angle of cutting temper

15、ature and strain,considering the influence of the two factors on the cutting force, established the machined material and the tool itself,the heat balance equation, and combining with the rake angle model and shear deformation rule, the re establishment of the cutting force model, a comparative anal

16、ysis of the difference and the superiority of this model with traditional empirical model, and through the cutting force experiment to verify the results, which lays the foundation for the groove optimization.2.NC Tool Research And DevelopmentIn modern manufacturing, advanced equipment have been tra

17、nsformed for fitting more variety, small volume production with CNC machine tools, machining centers, etc, coming out, in the range of NC machining, tools, no mater variety or quantity in the workshop take up an important position as a leading manufacturer. In large enterprises, tools are managed by

18、 branch or the workshop, there are many drawbacks. In this paper, a detailed analysis and discussion have been done focusing on the NC database storage2technology, access technology, as well as the collective scheme designed and the concrete realization: the research and analysis on the NC Tool Mana

19、gement System in workshop, the establishment of the NC processing workshops Tool Management System based on the database.In this paper, on the base of the research for tool management trends of its development at home and abroad, a comprehensive research and analysis have been done on the tool manag

20、ement system s requirement, function models design and forms layout design, point on RDBMS structure, coding rule ,Crystal Report technology and GDI + graphics technologies, as well as diversified modulus function and the link between them in the system, after the several key technologies for the ex

21、ploration of a more comprehensive study on them, the contents and results are as follows:1.Used the three-tier Client Server software frame developed a corresponding distributed tool management system, achieving day-to-day management and scheduling functions, based on the coding principles, a tool-a

22、ssisted coding system were established, the coding are provided with succession and extension to detailed, it can express the full information of the tools in detail, truly and fleetly, so that to enhance the managements level in CNC machining centers including relation of the interrelated informati

23、on and the degree of integration about tools information, at last achieved the information s sharing, improved the degree of automation in product systems.2.The establishment of the database software model: According to the requirement of the TMS, eight primary data sheets have been set up and desig

24、ned, using ADO.NET database interface technology to achieve relational database and the integration of object-oriented design methods, a software tool management framework is being put forward, so that to achieve the communication between tool information and procedures efficiently.3.Introduce devel

25、oped environment of the tool management system myself and system flow, discuss major functional modulesdesign features and the main structure briefly on the tools basic information, search management, data analysis management, in and out management and Crystal Report in system management etc., analy

26、ze the key technologies to achieve success.4.According to the function of the system requirements analysis and definition, analyze the main function of server-side applications and the technologies in the system, and also analyze the system s structure, as well as computer model, the gist of some3ch

27、oice for platform: Functional modules in tool management system are analyzing and developing by using C # and SQL Server 2000.The system uses optimization technology, a large number of computer storage inven tory information, timely, accurate, and comprehensive tool to reflect the inventory situatio

28、 n. The entire system uses a graphical interface, man-machine dialogue tips from the Chine se menu, select various functions can be realized and the importation of all kinds of infor mation. Management system using online help function. Through the workshop managem ent, network management and sharin

29、g of information. Have automated inventory manage ment, warehousing management tool, a tool for the management and statistical functions. The entire system, including the structure and electrical machinery control systems.3.Mechanical Structure And Working PrincipleTool from the tend, drive, drive s

30、ystem, Turret, shielding, control system, and electri cal components. Support from the column, beam, the upper and lower guide Central track, and track support component. Drive for the system chosen method. Cone used brake mot ors, with by Cycloid reducer through sprocket drive.Drag a variable frequ

31、ency drive system and control technology. Adoptedwill speed drive shaft in the normal range adjustment to control the speed rotary turret to 5 30mm i n, the drive shaft into two, two under through sprocket, the two profiled rollers Chain driv en rotating shelves. Expansion chain adopted by the threa

32、d tight regulation swelling, swel ling the regular way. - Conditioned, under the same chain-of-conditioning, so that the chai n of uniform. Turret and shields the entire total of 14 independent Turret. 13 of them as a socket-Turret, as a drawer-Turret, each Turret back through the pin and, under the

33、 convey or chain link chain plate, installed at the bottom roller, chain driven rotating turret rotation along the track. Outlet-Turret and BT50-BT40 Turret Turret two kinds of forms. To stren gthen management, security, landscaping modeling, shelf peripherals and shields. Turret-drawer drawer place

34、d at six other Des Voeux a knife, can be categorized with some of kni fe auxiliary equipment, such as bits, such as turning tools.4.Electrical Control SystemThis tool storage systems is the main electrical control their shelves for operational c ontrol and position control. Operational control equip

35、ment, including operation of the star4t of braking control. Position Control is the main location and address of the shelves for te sting.Electric Transmission horizontal rotary tool storage systems are the mechanical mov ements are repeated short-term work system. And the run-time system needs some

36、 speed, speed transmission needs, the system will use VVVF method can be used simple structure , reliable operation of the motor and frequency invert.Control of the system is divided into two kinds of manual control and automatic cont rol, manual control as a general reserve and debugging methods of

37、 work; ways to the syst em control computer (IPC and the control unit (invert contact , etc. consisting of a contr ol system.location and positioning accuracy of the system automatically identify the site and l ocation using a detection device as proximity switches, relays through the plate-point is

38、ol ation and the number plate recorded close to the switching signal acquisition and operatio n of Hutchison with a Optimal Path addressable identify the current location and shelves of the purpose of the shelf location. In order to enable a more accurate positioning system, adopted two photoelectri

39、c switches, to detect the two shelves of the two films.5.ConclusionFocused on in today's manufacturing environment tool storage and management of n ew models and methods, practical application of good results in systems integration and o ptimization, and other aspects of operations will be furth

40、er explored, so that it has a highe r theoretical and practical level.5機(jī)床刀具設(shè)計 機(jī)床原來的刀庫控制程序是單獨設(shè)計的，沒有采用刀具管理系統(tǒng)，功能也比較 單一，只實現(xiàn)了刀庫刀具的找刀、刀庫最短路徑定位、主軸換刀，而且不支持大型 刀具。 在刀庫自動選刀方面， 在計算機(jī)記憶式選刀的基礎(chǔ)上采用了西門子 840D 特色功 能， 使選刀程序更簡潔， 并完成空刀套的查找。 刀庫快速換刀利用 STEP-7 完成編程， 并在實際中得到驗證。在刀庫定位問題上，PLC 程序控制采用模塊化設(shè)計方法，這 對今后生產(chǎn)類似機(jī)床將十分有利，很容易將其利

41、用到其他機(jī)床上。自動換刀系統(tǒng)將 以較快的速度增長，縮短換刀時間，提高刀具的定位精度是重要的手段，有利于數(shù) 控技術(shù)的發(fā)展。刀具及其元件庫存是現(xiàn)代生產(chǎn)管理中的重要環(huán)節(jié)，特別是大型車間 管理。傳統(tǒng)的人工記帳管理方式，效率低下，錯誤率高，且信息數(shù)據(jù)不能共享，刀 具的使用狀態(tài)和壽命周期無法跟蹤，不能適應(yīng)當(dāng)前信息化管理需要。結(jié)合生產(chǎn)實際， 我們在車間刀具準(zhǔn)備間建立刀具貯存立體庫系統(tǒng)，以滿足車間刀輔具儲存與管理的 需要。 1.可轉(zhuǎn)位車刀片的切削力建模與研究 隨著科學(xué)技術(shù)的飛速發(fā)展，硬質(zhì)合金作為刀具材料已經(jīng)普遍應(yīng)用于金屬切削加 工，硬質(zhì)合金可轉(zhuǎn)位刀片切削性能的優(yōu)劣，直接影響了生產(chǎn)加工的效率及加工質(zhì)量。 而切削

42、性能的優(yōu)劣在很大程度上又取決于刀具的斷屑性能和切削過程中力的影響， 所以對于硬質(zhì)合金可轉(zhuǎn)位刀片的斷屑槽以及切削力的研究，一直以來都是機(jī)加工研 究領(lǐng)域的重大論題。斷屑槽方面，三維復(fù)雜槽型的產(chǎn)生，使得斷屑更可靠，范圍更 廣，使用涂層材料以后，使刀具壽命更高，所以這類槽型刀片是目前的主要研究對 象。切削力方面，選用新型槽型刀片，進(jìn)行正交切削試驗，研究切削過程中，該類 新型槽型的斷屑效果以及三向切削力的變化規(guī)律對于切削力理論建模有很大的指導(dǎo) 作用和參考價值。本文在試驗的基礎(chǔ)上，對硬質(zhì)合金可轉(zhuǎn)位車刀片斷屑槽型對切削 折斷的影響以及切削力的建模進(jìn)行了理論與實驗研究。 首先，論文結(jié)合當(dāng)前的現(xiàn)狀闡述了斷屑槽和

43、切削力研究的意義，分析了斷屑槽 的結(jié)構(gòu)組成、作用以及分類，對目前的主流三維復(fù)雜槽型從結(jié)構(gòu)與作用上做出了性 能評價，同時綜述了國內(nèi)外學(xué)者在斷屑槽研究及切削力建模方面研究的概況以及所 6 取得的成果。 再次，針對加工同種材料的不同槽型刀片以及同種新型槽型刀片不同切削用量 條件的兩種情況，分別進(jìn)行了切削力比較試驗，論述了三種刀片的槽型結(jié)構(gòu)對斷屑 性能和切削力的影響，指出了新型三維槽型 MP 在結(jié)構(gòu)和材料上的優(yōu)點，并給出了該 新型槽型在試驗范圍內(nèi)的最佳切削用量以及其斷屑性能的規(guī)律，并對切屑形態(tài)做了 分析。 最后，從理論上，通過最小能量法求解建立了剪切角模型，從切削溫度與應(yīng)變 的角度，考慮這兩個因素對切

44、削力的影響規(guī)律，建立了被加工材料與刀具本身的熱 平衡方程，并結(jié)合前角模型與剪切變形規(guī)律，重新建立了切削力的模型，通過切削 力實驗對其進(jìn)行了可靠性和誤差分析，為槽刀片型優(yōu)化奠定了基礎(chǔ)。 2.數(shù)控加工車刀研究與開發(fā) 在現(xiàn)代制造業(yè)中，隨著數(shù)控機(jī)床，加工中心等適應(yīng)多品種，小批量生產(chǎn)的先進(jìn) 設(shè)備相繼問世，種類、數(shù)量繁多的數(shù)控刀具在數(shù)控加工車間中便占據(jù)了重要地位。 在大型企業(yè)中，刀具由各分廠或者車間分別自行管理，存在諸多弊端。本論文對數(shù) 控車間的刀具管理系統(tǒng)做了詳細(xì)的分析和論述， 重點對數(shù)控刀具的數(shù)據(jù)庫存儲技術(shù)、 訪問技術(shù)以及總體方案的設(shè)計和系統(tǒng)的具體實現(xiàn)進(jìn)行了研究和分析，建立了數(shù)控加 工車間中基于數(shù)據(jù)庫

45、的刀具管理系統(tǒng)。 本文在對國內(nèi)外刀具管理的現(xiàn)狀及其發(fā)展趨勢的研究基礎(chǔ)上，對刀具管理系統(tǒng) 的需求分析、模塊功能分析以及窗體的布局設(shè)計作了全面的分析研究，并重點對刀 具管理系統(tǒng)所應(yīng)用的關(guān)系型數(shù)據(jù)庫結(jié)構(gòu)、刀具編碼規(guī)則、水晶報表技術(shù)和 GDI+繪圖 技術(shù)等關(guān)鍵技術(shù)以及系統(tǒng)各個模塊的功能和他們之間的聯(lián)系等方面進(jìn)行了比較全面 的探索性研究，研究內(nèi)容和成果如下： 1.采用三層 Client/Server 軟件體系架構(gòu)開發(fā)了相應(yīng)的分布式刀具管理系統(tǒng)， 實現(xiàn)了刀具的日常管理和調(diào)度功能，在符合刀具編碼原則的基礎(chǔ)上建立了一套刀具 輔助編碼系統(tǒng)，代碼具有繼承性和可擴(kuò)充性，能夠詳細(xì)、準(zhǔn)確而又快捷地表述刀具 的全部信息，提高了數(shù)控加工中心中刀具及相關(guān)信息的管理水平和刀具信息集成程 度，實現(xiàn)了刀具信息共享，提高了生產(chǎn)系統(tǒng)的自動化程度。 2.數(shù)據(jù)庫軟件模型的建立：通過對刀具管理的需求分析，創(chuàng)建并設(shè)計了八個主 7 要的數(shù)據(jù)表，利用 ADO.NET