大家好,今天小编来为大家解答凸轮设计这个问题,智能小车的凸轮怎么设计很多人还不知道,现在让我们一起来看看吧!
本文目录
应该是从动件的运动规律取决于凸轮的轮廓,而不是凸轮的轮廓取决于从动件的运动规律。
凸轮轮廓曲线设计
o,,60设计一直动对心滚子从动件盘形凸轮机构的图轮廓线。已知该凸轮推程角,近
‘oo'o,,60休止角,回程角,远休止角;从动件行程,基圆半径h,80mm,,30,,210ss
r,100mmr,8mm,滚子半径,从动件在推程阶段和回程阶段均以摆线运动规律运动。0r
o凸轮转角()理论廓线坐标X理论廓线坐标Y实际廓线坐标X实际廓线坐标Yaa0010009258.741899.91888.857191.91961017.7654100.752519.219692.88581527.7629103.612530.559196.11712039.5512108.666142.8991101.40042553.6586115.071356.8243107.72433070.0000121.243672.4058113.61393587.7760125.357288.8852117.434440105.6485125.9070104.9352117.938945122.1402122.1402119.2549114.678750136.1209114.2190131.2101107.903655147.2012103.0714140.919598.117660155.884690.0000148.956486.0000
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65163.135476.0713155.884972.690370169.144761.5636161.627158.827575173.866646.5874166.139244.516980177.265431.2567169.386929.867585179.315015.6880171.345514.9908901800172.0000095179.3150-15.6880171.3455-14.9908100177.2654-31.2567169.3869-29.8675105173.8666-46.5874166.1392-44.5169110169.1447-61.5636161.6271-58.8275115163.1354-76.0713155.8849-72.6903120155.8846-90.0000148.9564-86.0000125147.4474-103.2438140.8942-98.6551130137.8880-115.7018131.7596-110.5595135127.2792-127.2792121.6224-121.6224140115.7018-137.8880110.5595-131.7596145103.2438-147.447498.6551-140.894215090.0000-155.884686.0000-148.956415576.0713-163.135472.6903-155.884916061.5636-169.144758.8275-161.627116546.5874-173.866644.5169-166.139217031.2567-177.265429.8675-169.386917515.6880-179.315014.9908-171.34551800-180.00000-172.0000185-15.6880-179.3150-14.9908-171.3455190-31.2567-177.2654-29.8675-169.3869195-46.5874-173.8666-44.5169-166.1392200-61.5636-169.1447-58.8275-161.6271205-76.0713-163.1354-72.6903-155.8849210-90.0000-155.8846-86.0000-148.9564215-103.2438-147.4474-98.6551-140.8942220-115.7018-137.8880-110.5595-131.7596225-127.2792-127.2792-121.6224-121.6224230-137.8880-115.7018-131.7596-110.5595235-147.4474-103.2438-140.8942-98.6551240-155.8846-90.0000-148.9564-86.0000245-163.1354-76.0713-155.8849-72.6903250-169.1447-61.5636-161.6271-58.8275255-173.8666-46.5874-166.1392-44.5169260-177.2654-31.2567-169.3869-29.8675265-179.3150-15.6880-171.3455-14.9908270-180.00000-172.00000275-179.015715.6618-171.098714.5126
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280-174.993730.8561-167.583127.8422285-166.846744.7064-160.617139.6873290-154.447856.2144-149.845949.6705295-138.694964.6745-135.694157.2586300-121.243670.0000-119.512262.1896305-104.005472.8254-103.073464.8798310-88.585474.3320-87.851966.3657315-75.849775.8497-74.523567.9603320-65.761578.3715-63.087670.8316325-57.530082.1613-53.630375.1762330-50.000086.6025-46.000079.6743335-42.261890.6308-38.880983.3803340-34.202093.9693-31.465986.4517345-25.881996.5926-23.811488.8652350-17.364898.4808-15.975690.6023355-8.715699.6195-8.018391.6499
这个怎么说呢国内设备也有很多用凸轮的你看包装机械的纸盒取料就是一种简单的凸轮整机的凸轮设计对设计师的经验能力要求很高要是出现计算失误可以说这设备就废了所以一般能用气缸伺服解决的都会选着这个设计思路简单调试起来也方便遇到问题还可以修改
1、根据要求,确定从动件的移动距离,比如20mm、30mm等
2、根据径向载(如:抗弯强度、抗剪强度)荷确定凸轮轴的最小轴径
3、根据结构定出凸轮的近毂半径(凸轮的最低点半径)
4、由时间需要,在恰当的转角时间,再按照从动件移动的距离来确定凸轮的远毂半径(凸轮最高点的半径)
5、从“凸轮的最低点半径”到“凸轮最高点的半径”为从动件升程
6、从“凸轮最高点的半径”到“凸轮的最低点半径”为从动件回程
7、“升程”与“回程”都属于从动件的过渡阶段,它决定从动件的加速度(或减速度)升速过快,会产生较大的径向负荷,为了减小凸轮的径向负荷,只有减慢升速,也就是将凸轮升程部分做得稍微平滑一些
8、根据以上:凸轮的“升程”或“回程”部分的曲线可以用阿基米德螺线,但需要描点确定阿基米德螺线的,制造也比较麻烦一下,但运动效果最好。简单的可以用圆弧代替凸轮的“升程”和“回程”,这样的用圆弧代替凸轮曲线所做出来的凸轮,其运动没有阿基米德螺线做的凸轮好,但可以用
关于凸轮设计,智能小车的凸轮怎么设计的介绍到此结束,希望对大家有所帮助。