Transactions of Materials and Heat Treatment

Title：Kinematics characteristics of multi-link driving mechanism for high speed precision press

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ClassificationCode：TH16；TH11

year,vol(issue):pagenumber：2022,47(7):194-199

Abstract：

The multi-link drive mechanism of a high-speed precision press was simplified, and based on rod group method, the displacement and velocity equations of slider were solved by Matlab. The results show that compared with high-speed precision press with crank-slider mechanism of the same stroke as the working mechanism, the multi-link drive mechanism reaches the nominal force stroke position for 9° in advance, and the corresponding slider speed is reduced by 26.4%, which helps to improve the stamping precision. The force-enforcement coefficient curve is asymmetrical, the value on the left is smaller than that of the crank-slider mechanism, and the value on the right is greater than that of the crank-slider mechanism. The error transfer functions of the mechanism are established and calculated in Matlab. The results show that the error transfer functions of crank radius, connecting rod 3, connecting rod 5 and coordinate x56 have extreme values at the top dead center and the bottom dead center, and the error transfer functions of connecting rod 3 and coordinate x56 are positive and nearly identical, which causes the slider position to shift upwards. Considering the thermal deformation of rod system, the error equation at the bottom dead center is established, which lays a design foundation for the stability of the bottom dead center.

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作者简介：鹿新建（1978-），男，博士，副教授 E-mail：50547481@qq.com

Reference：

[1]范宏才. 现代锻压机械[M].北京：机械工业出版社,1994.

Fan H C. Modern Forming Machinery[M]. Beijing: China Machine Press, 1994.

[2]杨莉，张思颖，秦泗吉. 压力机平衡力对转动副间隙的影响 [J]. 锻压技术，2020,45(9):155-161.

Yang L，Zhang S Y，Qin S J. Influence of balance force for press on clearance of revolute pair [J]. Forging & Stamping Technology，2020,45(9): 155-161.

[3]胡建国，孙友松，章争荣，等. 机械压力机传动方案设计的发展历程 [J]. 锻压技术，2020,45(5):159-166.

Hu J G，Sun Y S，Zhang Z R，et al. Development history of transmission plan design in mechanical press [J]. Forging & Stamping Technology，2020,45(5): 159-166.

[4]张传锦, 李岸然,李海明,等. 伺服压力机位置/压力自动补偿精确运动控制研究[J]. 锻压技术,2021,46(1):126-130.

Zhang C J，Li A R，Li H M，et al. Study on precise motion control of automatic position and pressure compensation for servo press [J]. Forging & Stamping Technology，2021,46(1):126-130.

[5]柯尊芒, 鹿新建,闵建成. 基于灰色关联度的高速压力机下死点影响因素分析[J]. 锻压装备与制造技术,2009,44(6):38-40.

Ke Z M, Lu X H, Min J C. Study on factors of bottom dead center（B.D.C） based on pessimistic interrelatedness [J], China Metalforming Equipment & Manufacturing Technology, 2009,44(6):38-40.

[6]贾方, 王磊. 含间隙高速压力机机构的动态误差传递规律研究[J].机械设计,2009,26(7):32-34.

Jia F, Wang L. Research on dynamic error of high speed forcing press with clearance[J]. Journal of Machine Design, 2009, 26(7):32-34.

[7]郑恩来, 张航,朱跃,等.含间隙超精密压力机柔性多连杆机构动力学建模与仿真[J]. 农业机械学报,2017，48(1)：375-385.

Zheng E L, Zhang H, Zhu Y, et al. Dynamic modeling and simulation of flexible multi-link mechanism including joints with clearance for ultra-precision press[J]. Transactions of the Chinese Society for Agricultural Machinery, 2017, 48(1):375-385.

[8]胡峰峰, 王尚斌,孙宇,等. 运动副间隙对多连杆压力机下死点精度的影响[J].机械科学与技术,2014,(9):1304-1308.

Hu F F, Wang S B, Sun Y, et al. Effect of the joints clearance on the precision of bottom dead center for multi-rod mechanical press[J]. Mechanical Science and Technology for Aerospace Engineering, 2014, (9): 1304-1308.

[9]Creighton E, Honegger A, Tulsian A, et al. Analysis of thermal errors in a high-speed micro-milling spindle[J]. International Journal of Machine Tools and Manufacture，2010, 50(4):386-393.

[10]鹿新建. 高速精密压力机多连杆驱动机构研究[D]. 南京：南京农业大学,2012.

Lu X J. Research on Multi-link Drive Mechanism of a High-speed Precision Press[D]. Nanjing: Nanjing Agricultural University, 2012.

[11]何灿焜. 多连杆高速压力机运动学特定分析[J].锻压装备与制造技术,2013,48(5):19-21.

He C K. Kinematic characteristics analysis of multi-link high-speed press[J]. China Metalforming Equipment & Manufacturing Technology, 2013,48(5):19-21.

[12]王彪. 高速精密压力机的关键技术问题及其解决措施[J]. 锻压装备与制造技术, 1992, 27(5): 51-54.

Wang B. The key technical problems and its′ solutions for high-speed precision presses[J]. China Metalforming Equipment & Manufacturing Technology, 1992, 27(5): 51-54.

[13]吴斌，宋佳娜，杨飞. 超高速冲压滑动夹持成形工位的改善 [J]. 锻压技术，2020,45(2):153-158.

Wu B，Song J N，Yang F. Improvement of ultra-high-speed stamping sliding clamping forming station [J]. Forging & Stamping Technology，2020,45(2): 153-158.

[14]温庆普. BRUDERER高速冲压技术的优势[A]. 第四届中国国际金属成形会议论文集[C]. 北京：中国锻压协会，2008.

Wen Q P. The advantages of BRUDERER′s high speed stamping technology[A]. Proceedings of the 4th China International Metal Forming Conference[C]. Beijing: China Forging Association, 2008.

[15]孙亮波. 基于杆组法的机构型综合与运动学分析系统研究[D]. 武汉：武汉科技大学,2012.

Sun L B. Research on Mechanism Model Synthesis and Kinematics Analysis System based on Assur Group[D]. Wuhan: Wuhan University of Science and Technology, 2012.

[16]鹿新建, 朱思洪,何光军,等. 多连杆高速压力机运动学分析[J].中国机械工程,2011, 22(11):1297-1301.

Lu X J, Zhu S H, He G J, et al. Kinematic analysis of multi-link high-speed presses[J]. China Mechanical Engineering, 2011,22(11): 1297-1301.

[17]鹿新建, 朱思洪,何光军,等.高速精密压力机理想驱动扭矩研究[J]. 机械设计,2011,28(9):38-41.

Lu X J, Zhu S H, He G J, et al. Research on ideal driving torque of high-speed precision press[J]. Journal of Machine Design,2011,28(9):38-41.

[18]夏萼辉, 刘世雄,杜忠权,译.锻造冲压曲柄压力机[M].上海：上海科学技术文献出版社,1988.

Xia E H, Liu S X, Du Z Q, Translated. Forging and Stamping Crank Press[M]. Shanghai: Shanghai Science and Technology Literature Press, 1988.

[19]石则昌, 刘深厚.机构精确度[M].北京：高等教育出版社,1995.

Shi Z C, Liu S H. Mechanical Mechanism Accuracy [M]. Beijing: Higher Education Press, 1995.

[20]周康年, 丁为联. 中国机械设计大典(第二卷)[M]. 南昌：江西科学技术出版社,2002.

Zhou K N, Ding W L. China Mechanical Design Canon (Volume II) [M]. Nanchang: Jiangxi Science & Technology Press, 2002.

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