【摘要】：皮帶輪作為帶傳動(dòng)的重要部件,廣泛應(yīng)用于汽車、礦山機(jī)械、家用電器、航天等領(lǐng)域。隨著市場(chǎng)需求量的增大,現(xiàn)有加工效率使企業(yè)難以按時(shí)按質(zhì)完成訂單量。一款適合的刀具能有效提高皮帶輪的加工效率和質(zhì)量。但常用的刀具很難兼顧效率、質(zhì)量和成本三個(gè)方面。為解決加工效率、加工質(zhì)量和成本的問(wèn)題,本文根據(jù)馬丁公司旗下的皮帶輪零件的加工要求開(kāi)展一種能高效切削鑄鐵皮帶輪切槽的專用刀具研究。研究?jī)?nèi)容包括提出硬質(zhì)合金多齒皮帶輪刀具的研究、皮帶輪切削機(jī)理的分析、刀具的設(shè)計(jì)和制備、刀具的材料和結(jié)構(gòu)改進(jìn)等。主要體現(xiàn)在以下幾個(gè)方面:(1)首先,闡述了皮帶輪的加工現(xiàn)狀,提出硬質(zhì)合金雙齒皮帶輪刀具的研究,能有效提高加工效率。其次,分析了皮帶輪加工過(guò)程中的切削機(jī)理和切削力的來(lái)源,根據(jù)刀具設(shè)計(jì)理論和皮帶輪零件的技術(shù)要求初步設(shè)計(jì)和制備皮帶輪刀具。(2)研究了切削速度對(duì)切削溫度的影響,并選定了加工皮帶輪時(shí)的切削參數(shù)。首先,基于DEFORM軟件的切削模擬,分析了不同切削速度下切削溫度的變化。其次,在不同切削速度下的切削試驗(yàn)中測(cè)出切削溫度和切削力的變化,通過(guò)有限元分析和切削試驗(yàn)的對(duì)比選出適合加工的切削速度為150m/min。(3)開(kāi)展了刀具材料影響切削性能的研究,并改進(jìn)刀具材料。通過(guò)DEFORM模擬仿真和部分實(shí)驗(yàn)數(shù)據(jù)探究了刀具材料機(jī)械性能對(duì)加工質(zhì)量和刀具使用壽命的影響,為刀具材料的改進(jìn)提供理論依據(jù)。(4)開(kāi)展了不同刀具結(jié)構(gòu)下切削性能的研究,并改進(jìn)刀具結(jié)構(gòu)。首先,利用仿真手段分析了不同切削參數(shù)下的切削溫度和切削力和不同切削參數(shù)下切削試驗(yàn)所得切屑形態(tài)的變化情況,提出了刀具參數(shù)的改進(jìn)方案。其次,對(duì)比切削參數(shù)改進(jìn)后的刀具在不同刀具結(jié)構(gòu)下加工過(guò)程中切屑形態(tài)和刀具受到的切削力的變化情況驗(yàn)證了刀具機(jī)構(gòu)改進(jìn)后的切削性能。(5)開(kāi)展了對(duì)改進(jìn)后的刀具與國(guó)內(nèi)外同類刀具切削試驗(yàn)的研究,重點(diǎn)分析了切削過(guò)程中刀具的使用壽命和市場(chǎng)價(jià)格。得出改進(jìn)后刀具的性價(jià)比較高。
[Abstract]:As an important part of belt transmission, pulley is widely used in automotive, mining machinery, household appliances, aerospace and other fields. With the increase of market demand, existing processing efficiency makes it difficult for enterprises to complete orders on time and quality. A suitable tool can effectively improve the efficiency and quality of the pulley. However, it is difficult for common cutting tools to take into account three aspects: efficiency, quality and cost. In order to solve the problems of machining efficiency, machining quality and cost, according to the requirements of Martin Corporation, a special tool which can cut the slot of cast iron pulley with high efficiency is developed in this paper. The research contents include the research of cemented carbide multi-tooth pulley cutting tool, the analysis of pulley cutting mechanism, the design and preparation of cutting tool, the improvement of tool material and structure, etc. The main contents are as follows: (1) at first, the present situation of pulley machining is expounded, and the research of cemented carbide double-tooth pulley tool is put forward, which can effectively improve the machining efficiency. Secondly, the cutting mechanism and the source of cutting force are analyzed. According to the tool design theory and the technical requirements of pulley parts, the pulley cutting tools are designed and fabricated. (2) the influence of cutting speed on cutting temperature is studied. The cutting parameters of the pulley are selected. Firstly, based on the cutting simulation of DEFORM software, the change of cutting temperature under different cutting speed is analyzed. Secondly, the change of cutting temperature and cutting force is measured in the cutting test at different cutting speeds. The cutting speed suitable for machining is 150 m / min through finite element analysis and cutting test. (3) the influence of cutting tool material on cutting performance is studied. And the tool material is improved. Through DEFORM simulation and some experimental data, the influence of mechanical properties of cutting tools on machining quality and tool service life is explored, which provides a theoretical basis for the improvement of tool materials. (4) the research on cutting performance under different tool structures is carried out. The tool structure is improved. Firstly, the change of cutting temperature and cutting force under different cutting parameters and chip shape under different cutting parameters are analyzed by means of simulation, and the improvement scheme of tool parameters is put forward. Secondly, The change of chip shape and cutting force in the process of machining with improved cutting parameters under different cutting tool structures is compared to verify the cutting performance of the improved tool mechanism. (5) the improved cutting tool and the improved cutting tool are compared. (5) the improved cutting tool and the cutting force are compared. (5) the improved cutting tool and the improved cutting tool are compared with each other. Research on cutting experiments of similar cutting tools at home and abroad, The service life and market price of cutting tools are analyzed. It is concluded that the performance-price ratio of the improved tool is higher.
【學(xué)位授予單位】：西華大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TG71

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張鵬;杜勁;衣明東;肖光春;許崇海;;陶瓷涂層刀具切削灰鑄鐵的試驗(yàn)研究[J];工具技術(shù);2017年01期

2 郭宇鵬;李玉新;;FDM技術(shù)原理特點(diǎn)及成型質(zhì)量分析[J];科技視界;2016年26期

3 張勤儉;趙路明;劉敏之;楊小慶;;刀具涂層技術(shù)的研究現(xiàn)狀和發(fā)展趨勢(shì)[J];有色金屬科學(xué)與工程;2014年02期

4 楚文斌;林大鈞;陳浩;范英明;;刀具參數(shù)對(duì)加工表面粗糙度影響的研究[J];圖學(xué)學(xué)報(bào);2014年01期

5 楊旭東;;現(xiàn)實(shí)情況下刀具的實(shí)際前角、后角[J];科技創(chuàng)新導(dǎo)報(bào);2012年29期

6 Christer Richt;;鈦合金銑削的新進(jìn)展[J];航空制造技術(shù);2012年14期

7 李占海;蘇清玲;;車刀安裝和進(jìn)給運(yùn)動(dòng)對(duì)車削加工的影響[J];青海大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年06期

8 張京京;馮平法;吳志軍;郁鼎文;;一種借助有限元傳熱仿真的刀尖點(diǎn)切削溫度精確測(cè)量方法[J];工具技術(shù);2010年01期

9 聶宇宏;杜美憬;謝凱弘;任家隆;姚壽廣;;切削速度對(duì)切削過(guò)程溫度分布影響的研究[J];工具技術(shù);2009年07期

10 ;刀具材料發(fā)展簡(jiǎn)史[J];超硬材料工程;2009年01期

相關(guān)碩士學(xué)位論文 前10條

1 曾俊杰;PVD涂層陶瓷刀具切削灰鑄鐵的性能研究[D];廣東工業(yè)大學(xué);2016年

2 劉然;刀具磨損狀態(tài)識(shí)別及預(yù)測(cè)研究[D];西南交通大學(xué);2014年

3 毛智星;基于硬質(zhì)合金的刀具鈍化工藝分析與研究[D];西華大學(xué);2014年

4 湯克震;基于eM-Plant的涂層刀具車間生產(chǎn)物流系統(tǒng)的仿真與優(yōu)化[D];蘇州大學(xué);2012年

5 馬殿林;插銑刀參數(shù)化設(shè)計(jì)及切削參數(shù)優(yōu)化[D];哈爾濱理工大學(xué);2012年

6 王晨;鎂合金AZ61熱變形特性及錐齒輪熱鍛成形研究[D];上海交通大學(xué);2012年

7 唐艷玲;等溫淬火球墨鑄鐵銑削性能研究[D];蘇州大學(xué);2010年

8 牟濤;高速銑削鈦合金Ti6Al4V的刀具磨損研究[D];山東大學(xué);2009年

9 王嘉;鍛件塑性成型過(guò)程的有限元模擬及工藝優(yōu)化[D];河北理工大學(xué);2008年

10 賀靜;低溫冷風(fēng)加工難切削材料的實(shí)驗(yàn)研究[D];重慶大學(xué);2006年

，

本文編號(hào)：2172782