竹材去内节加工过程的数学描述和参数驱动
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摘要
采用数学方法对竹材的形状进行描述,并对其去内节加工过程进行参数驱动,以期提高竹材的经济价值和利用范围。首先对竹材加工工艺进行分析,在实际应用的基础上,解释现有工艺的不足,设计了竹材去内节加工设备的工艺流程并阐述其科学性和实用性;其次,采用柱坐标的形式对竹材及其去内节加工过程进行数学描述,采用微积分思想对竹材去内节加工过程所走路径进行数学表达;最后给定工作参数,对竹材去内节加工过程进行参数驱动。利用参数驱动方程,对竹材去内节加工设备的软件系统进行设计,将程序输出数值与理论计算数值进行对比分析,验证了竹材去内节加工过程参数驱动方程的正确性和精确性。通过用数学方法对竹材的形状进行描述,竹材去内节加工过程的参数驱动为竹材去内节加工设备软件系统的设计提供了基础,有望解决竹材加工困难和出材率低等问题。
In this paper,the mathematical method was proposed to describe the shape of the bamboo,and the internal section processing was driven by parameters. This method could improve the economic value and utilization range of bamboo. Firstly,the bamboo processing technology was analyzed,and on the basis of practical application,the drawbacks of existing processes were addressed. The bamboo inner section processing equipment was designed,and its scientific merits and practicality were elaborated. Secondly,the removing process of bamboo inner section was mathematically described in a form of cylindrical coordinates. By adopting the idea of calculus,the length of the path taken by the bamboo during the inner section removing was expressed. Finally,the parameters of the bamboo inner section removing process were driven. Combined with the parameter driven equation,the software system of the processing equipment of bamboo inner section removing was designed. The measured five sets of bamboo materials parameters were input into the control program,and the numerical value was obtained. The program output tool swing angles were 62.93°,62.53°,30.85°,31.21° and 30.49°,respectively. The tool processing paths were 26.25 mm,28.59 mm,18.18 mm,20.79 mm and 25.28 mm,respectively. The ideal shape of the bamboo is a standard cylindrical shape,and the cross-section of the bamboo is circular. The circular theoretical calculation formula was applied to the processing of the bamboo to inner section. The relevant theoretical value was obtained. The swing angles of tool were60°,60°,30°,30° and 30°, respectively,and the tool processing paths were 27.13 mm,29.36 mm,18.25 mm,20.91 mm and 25.37 mm,respectively. By analyzing the error between the program output value and the theoretical value,the correctness and accuracy of the bamboo inner section removing process were verified. By using the mathematical description,the shape of the bamboo was described,and the parameter driven equation of the processing equipment for bamboo inner section removing provided a mathematical basis for the design of software system,which may promote the automation of the processing of the bamboo and solve the problems of bamboo un-efficient processing and low yield.
In this paper,the mathematical method was proposed to describe the shape of the bamboo,and the internal section processing was driven by parameters. This method could improve the economic value and utilization range of bamboo. Firstly,the bamboo processing technology was analyzed,and on the basis of practical application,the drawbacks of existing processes were addressed. The bamboo inner section processing equipment was designed,and its scientific merits and practicality were elaborated. Secondly,the removing process of bamboo inner section was mathematically described in a form of cylindrical coordinates. By adopting the idea of calculus,the length of the path taken by the bamboo during the inner section removing was expressed. Finally,the parameters of the bamboo inner section removing process were driven. Combined with the parameter driven equation,the software system of the processing equipment of bamboo inner section removing was designed. The measured five sets of bamboo materials parameters were input into the control program,and the numerical value was obtained. The program output tool swing angles were 62.93°,62.53°,30.85°,31.21° and 30.49°,respectively. The tool processing paths were 26.25 mm,28.59 mm,18.18 mm,20.79 mm and 25.28 mm,respectively. The ideal shape of the bamboo is a standard cylindrical shape,and the cross-section of the bamboo is circular. The circular theoretical calculation formula was applied to the processing of the bamboo to inner section. The relevant theoretical value was obtained. The swing angles of tool were60°,60°,30°,30° and 30°, respectively,and the tool processing paths were 27.13 mm,29.36 mm,18.25 mm,20.91 mm and 25.37 mm,respectively. By analyzing the error between the program output value and the theoretical value,the correctness and accuracy of the bamboo inner section removing process were verified. By using the mathematical description,the shape of the bamboo was described,and the parameter driven equation of the processing equipment for bamboo inner section removing provided a mathematical basis for the design of software system,which may promote the automation of the processing of the bamboo and solve the problems of bamboo un-efficient processing and low yield.
引文
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[11]潘慧,涂桥安,林石,等.原竹段去内节去黄组合刀具结构设计及性能仿真[J].林业工程学报,2017,2(2):127-132.DOI:10.13360/j.issn.2096-1359.2017.02.021.PAN H,TU Q A,LIN S,et al.Design and simulation of a combined cutting tool for inner section and tabaxir cutting from the natural bamboo section[J].Journal of Forestry Engineering,2017,2(2):127-132.
[12]周建波,袁东,马程浩,等.基于PLC的自动破竹机控制系统设计[J].林业机械与木工设备,2017,45(10):7-10.DOI:10.3969/j.issn.2095-2953.2017.10.002.ZHOU J B,YUAN D,MA C H,et al.Design of automatic bamboo splitting machine control system based on PLC[J].Forestry Machinery&Woodworking Equipment,2017,45(10):7-10.
[13]于慧洋.竹材在室内设计中的应用及趋势研究[J].艺术科技,2016,29(12):292.DOI:10.3969/j.issn.1004-9436.2016.12.257.
[14]LI X G,HU N,WU Y Q.Study on the processing technology of bamboo mat/bamboo particle composite board[J].Advanced Materials Research,2010,150-151:1433-1437.DOI:10.4028/www.scientific.net/amr.150-151.1433.
[15]王丰.福建省竹材加工现状及发展思路[J].木工机床,2017(2):32-34.DOI:10.3969/j.issn.1005-1937.2017.02.010.WANG F.Present situation and development of bamboo processing in Fujian[J].Woodworking Machinery,2017(2):32-34.
[2]李延军,许斌,张齐生,等.我国竹材加工产业现状与对策分析[J].林业工程学报,2016,1(1):2-7.DOI:10.13360/j.issn.2096-1359.2016.01.001.LI Y J,XU B,ZHANG Q S,et al.Present situation and the countermeasure analysis of bamboo timber processing industry in China[J].Journal of Forestry Engineer,2016,1(1):2-7.
[3]马岩.我国数控木工机械的发展现状及自动化技术的研发方向[J].林业机械与木工设备,2012,40(1):4-9.DOI:10.3969/j.issn.2095-2953.2012.01.001.MA Y.Development status of China's CNC woodworking machinery and the development direction of automation technology[J].Forestry Machinery&Woodworking Equipment,2012,40(1):4-9.
[4]HUANG Z J,SUN Y M,MUSSO F.Assessment of bamboo application in building envelope by comparison with reference timber[J].Construction and Building Materials,2017,156:844-860.DOI:10.1016/j.conbuildmat.2017.09.026.
[5]杨春梅,包玉莹,马岩,等.竹材四面铣削三面剖分加工方式的出材率分析[J].西北林学院学报,2015,30(5):230-234,240.DOI:10.3969/j.issn.1001-7461.2015.05.39.YANG C M,BAO Y Y,MA Y,et al.Outturn rate of all side milling and three side spliting of bamboo timber processing[J].Journal of Northwest Forestry University,2015,30(5):230-234,240.
[6]邢力平,包玉莹,任洪娥.数控剖竹机自动换刀机构的设计及其原理[J].西部林业科学,2015,44(2):59-62.DOI:10.16473/j.cnki.xblykx1972.2015.02.006.XING L P,BAO Y Y,REN H E.Automatic tool change's mechanism and research for CNC cutting bamboo machine[J].Journal of West China Forestry Science,2015,44(2):59-62.
[7]吴哲,包玉莹,马岩,等.数控剖竹机的研究与设计[J].木材加工机械,2014,25(2):15-17.DOI:10.13594/j.cnki.mcjgjx.2014.02.003.WU Z,BAO Y Y,MA Y,et al.The research and design of the CNC bamboo cutting machine[J].Wood Processing Machinery,2014,25(2):15-17.
[8]姜新波,龙倩倩,任洪娥.剖竹机自动对心机构的研究与设计[J].木材加工机械,2014,25(1):14-16.DOI:10.13594/j.cnki.mcjgjx.2014.01.002.JIANG X B,LONG Q Q,REN H E.The design and research on automatical heart institution of the splitting bamboo machine[J].Wood Processing Machinery,2014,25(1):14-16.
[9]孙晓东,尹华,丁定安,等.竹材去内节破竹机的设计[J].湖南林业科技,2009,36(5):15-18.DOI:10.3969/j.issn.1003-5710.2009.05.005.SUN X D,YIN H,DING D A,et al.Design of removing inner segment and splitting bamboo machine[J].Hunan Forestry Science&Technology,2009,36(5):15-18.
[10]诸小丽.竹签成型机全自动化改造设计方案[J].机械工程师,2013(1):78-79.DOI:10.3969/j.issn.1002-2333.2013.01.037.
[11]潘慧,涂桥安,林石,等.原竹段去内节去黄组合刀具结构设计及性能仿真[J].林业工程学报,2017,2(2):127-132.DOI:10.13360/j.issn.2096-1359.2017.02.021.PAN H,TU Q A,LIN S,et al.Design and simulation of a combined cutting tool for inner section and tabaxir cutting from the natural bamboo section[J].Journal of Forestry Engineering,2017,2(2):127-132.
[12]周建波,袁东,马程浩,等.基于PLC的自动破竹机控制系统设计[J].林业机械与木工设备,2017,45(10):7-10.DOI:10.3969/j.issn.2095-2953.2017.10.002.ZHOU J B,YUAN D,MA C H,et al.Design of automatic bamboo splitting machine control system based on PLC[J].Forestry Machinery&Woodworking Equipment,2017,45(10):7-10.
[13]于慧洋.竹材在室内设计中的应用及趋势研究[J].艺术科技,2016,29(12):292.DOI:10.3969/j.issn.1004-9436.2016.12.257.
[14]LI X G,HU N,WU Y Q.Study on the processing technology of bamboo mat/bamboo particle composite board[J].Advanced Materials Research,2010,150-151:1433-1437.DOI:10.4028/www.scientific.net/amr.150-151.1433.
[15]王丰.福建省竹材加工现状及发展思路[J].木工机床,2017(2):32-34.DOI:10.3969/j.issn.1005-1937.2017.02.010.WANG F.Present situation and development of bamboo processing in Fujian[J].Woodworking Machinery,2017(2):32-34.