发布时间 : 星期六 文章振动攻丝机设计毕业设计(论文)更新完毕开始阅读d3ddc4f7988fcc22bcd126fff705cc1754275f4d
毕业设计(论文)
摘要
振动攻丝机利用了振动加工的加工原理。这一技术在应用方向上针对了包含：航空、航天、武器、军工行业在内的各种螺纹加工品质要求高及加工难度系数大原料（钛合金、不锈钢、复合材料、难加工合金、高强度钢）的精密深孔内螺纹运用脉冲切削的一种专业高品质高端特种攻丝机床。振动攻丝机攻丝无需扩大底孔，无需采用挤压丝锥。直接使用切削丝锥，保证螺纹高可靠连接，最深可攻至螺纹直径的五倍。加工出的螺纹具有表面光洁度和加工精度高，螺纹表面的耐磨性、耐腐蚀性好，丝锥耐用度高等优点。
振动攻丝机主要针对螺纹加工深度长、质量要求高及加工难度系数大的材料（钛合金、不锈钢、复合材料、高温合金、高强度钢及航空铝合金）的螺纹孔攻丝场合。无需扩大底孔，无需采用挤压丝锥。直接使用切削丝锥，保证螺纹高可靠连接。振动攻丝机将切削力以周期性脉冲的形式加持在待加工工件上，并且因此而获得了高频脉冲式的加工能力，而且这种能力是易于操控的。这一功能减小了切削的力度力和温度。从而有效避免了积屑瘤的产生，进而减少了过热导致的磨损。这样的振动攻丝技术有利于提高丝锥的使用时长和攻丝加工的精确程度。
本毕业设计中主要进行了对振动攻丝机的分析和设计，在机床结构上采用三轴伺服控制，采用滚珠丝杠和直线导轨机构，半闭环控制系统，并具有快的响应特性和较高的伺服精度，同时保证了振动攻丝的精度和高效率。
关键词 振动攻丝机；丝锥；伺服控制；机械设计；精度
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毕业设计(论文)
Abstract
Vibration tapping machine is the use of vibration machining principle for aviation, aerospace, weapons, military industry, high quality demand of thread processing and processing difficulty big materials (titanium alloy, stainless steel, composite materials, high temperature alloy, high strength steel) pulse cutting of small deep hole thread of a high quality professional high-end special tapping machine.Vibration tapping machine tapping don't need to enlarge the bottom hole, without the squeeze taps.Directly using the cutting tap to ensure that the screw thread connection with high reliability, the deepest can attack to five times the diameter of the thread.The thread with surface roughness and machining high precision, good wear resistance, corrosion resistance, on the surface of the thread tap high durability, etc.
Vibration tapping machine is mainly in view of the long thread processing depth, high quality requirements and processing difficulty coefficient of materials (titanium alloy, stainless steel, composite materials, high temperature alloy, high strength steel and aviation aluminum alloy) threaded hole tapping occasion.Don't need to expand the base hole without the squeeze taps.Directly using the cutting tap to ensure that the screw thread connection with high reliability.With a high frequency pulse type tapping function, is pulse cutting force on the parts.Can greatly reduce the cutting force and cutting temperature, which can effectively avoid or reduce the devolop tumor, elastic and thermal wear, improve life tap, improve the machining accuracy.Vibration tapping torque is small, the blade chip breaker crumbs smooth, tap top knife surface and cutting edge bonding no debris, cutting edge outline is clear, so the processing of thread tooth profile error is small. Neat appearance rules.
Purpose of this subject is designed for mechanical vibration tapping machine, machine tool structure with three axis servo control, the ball screw and linear guide, half closed loop control system, has a fast response and high precision of servo, ensure the accuracy and efficiency of vibration tapping.
Key words：Vibration tapping machine tap servo control mechanical design precision
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毕业设计(论文)
目 录
摘要 ........................................................................ I Abstract ................................................................... II 1 绪论 ...................................................................... 1 1.1 振动攻丝机发展历史 .................................................... 1 1.2 振动攻丝运动的特点 .................................................... 1 1.3 振动攻丝的优点 ........................................................ 3 1.4 攻丝机设计分析 ........................................................ 4 2 振动攻丝机整体设计 ........................................................ 7 2.1 振动攻丝机的总体布局、主要技术参数 .................................... 7
2.1.1了解振动攻丝机的总体布局 ........................................ 7 2.1.2振动攻丝机的主要技术参数 ........................................ 8 2.1.3 主运动的实现 ................................................... 10 2.1.4 进给运动的实现 ................................................. 11 2.2 总体结构设计 ........................................................ 11 3主运动系统设计 ........................................................... 13 3.1 系统分析设计之横向进给计算 .......................................... 13
3.1.1制定脉冲当量和机构传动比例 ..................................... 14 3.1.2 直线滚柱导轨的设计与校核 ....................................... 15 3.2.3寿命计算 ....................................................... 16 3.1.3 振动攻丝机轴承使用时长校核计算 ................................. 17 3.1.4分析并选择振动攻丝机的联轴器 ................................... 18 3.1.5滚珠丝杠在振动攻丝机的Z轴上的分析和计算 ....................... 19 3.1.6伺服电机的选择 ................................................. 21 3.2振动攻丝机的垂直进给系统分析校核 ...................................... 23
3.2.1 分析计算振动攻丝机的传动比以及脉冲当量 ......................... 24 3.2.2振动攻丝机滚珠丝杠设计计算 ..................................... 25 3.2.3伺服电机的选择 ................................................. 30 3.2.4振动攻丝机滚珠丝杆副的预紧方式 ................................. 32 4 攻丝机的基本控制设计 ..................................................... 34 结论 ....................................................................... 37 致谢 ....................................................................... 38 参考文献 ................................................................... 39
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毕业设计(论文)
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