CN101579826B - 盘类零件外定心夹紧机构 - Google Patents

盘类零件外定心夹紧机构 Download PDF

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Publication number
CN101579826B
CN101579826B CN2009100109658A CN200910010965A CN101579826B CN 101579826 B CN101579826 B CN 101579826B CN 2009100109658 A CN2009100109658 A CN 2009100109658A CN 200910010965 A CN200910010965 A CN 200910010965A CN 101579826 B CN101579826 B CN 101579826B
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plunger
platen
clamping mechanism
radial elastic
oil pressure
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CN101579826A (zh
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杨曙光
吴长江
陈永龙
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Dalian Machine Tool (Digital) Co., Ltd.
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Dalian Machine-Tool Group Co Ltd
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Abstract

本发明公开了一种夹紧机构,特别是一种用于机加工设备上的盘类零件外定心夹紧机构。包括夹具体,其特征在于:在夹具体的内孔处设有柱塞体,上方设有定位盘;在定位盘内孔处设有压盘,压盘与定位盘的上端板之间设有径向弹性垫圈;在柱塞体上设有圆周均匀分布的与进出油油孔相连通的柱塞腔,柱塞腔内装设有油压柱塞,油压柱塞的端头与所述的压盘相配。利用液压控制装置驱动油压柱塞并通过压盘压向径向弹性垫圈使其向内侧变形对其内的零件实施夹持,可自动定心,夹持力不受人为因素的影响,动作灵活可靠,整体结构简单,容易操作,同时可消除零件的定位间隙,提高加工精度。

Description

盘类零件外定心夹紧机构
技术领域
本发明涉及一种夹紧机构,特别是一种用于机加工设备上的盘类零件外定心夹紧机构。
背景技术
盘类零件在机加工中同样需要有夹紧装置进行夹紧,现有的夹紧这类零件的夹具多是带夹爪的卡盘,利用零件上的止口外圆面定位夹紧,操作比较麻烦,夹持力人为因素大,可靠性差。
发明内容
本发明的目的是提供一种整体结构简单、动作灵活可靠、自动定心、可消除零件定位间隙、加工精度高的盘类零件外定心夹紧机构,克服现有技术的不足。
本发明的盘类零件外定心夹紧机构,包括夹具体5,其特征在于:在夹具体5的内孔处设有柱塞体6,上方设有定位盘3;在定位盘3内孔处设有压盘2,压盘2与定位盘3的上端板之间设有径向弹性垫圈1;在柱塞体6上设有圆周均匀分布的与进出油油孔11相连通的柱塞腔12,柱塞腔12内装设有油压柱塞4,油压柱塞4的端头与所述的压盘2相配。
本发明的盘类零件外定心夹紧机构,其中所述的径向弹性垫圈1呈圆环状,内侧部分向上翘起并在圆周内侧设有均匀分布的开口9。
本发明的盘类零件外定心夹紧机构,利用液压控制装置驱动油压柱塞并通过压盘压向径向弹性垫圈使其向内侧变形对其内的零件实施夹持,可自动定心,夹持力不受人为因素的影响,动作灵活可靠,整体结构简单,容易操作,同时可消除零件的定位间隙,提高加工精度。
附图说明
图1是本发明具体实施方式的结构示意图;
图2是图1中所示的径向弹性垫圈1的主视示意图;
图3是图2所示的俯视示意图;
图4是图1中所示的盘类零件的结构示意图。
具体实施方式
如图1所示:5为夹具体,在夹具体的内孔处设有柱塞体6,柱塞体6与夹具体5之间通过螺栓固定连接。在夹具体5的上方通过螺栓固定连接有定位盘3。在定位盘3的内侧装有压盘2,在压盘2与定位盘3上方端面处的端板之间设有径向弹性垫圈1。在柱塞体6上轴向圆周均匀分布有柱塞腔12,在柱塞腔12内配有油压柱塞4,油压柱塞4的上端头与压盘2的底面相配,即可顶靠压盘2的底面。在柱塞体6和夹具体5上加工有与柱塞腔12连通的油孔11。安装时将油孔11通过管路及阀门与液压控制装置相接。+
如图2、3所示:径向弹性垫圈1呈盘状,其内侧部分向上翘起,并在翘起处圆周均匀加工有开口9,在外侧的圆环面上加工有凹槽环13。
工作过程如下:夹具体5与现有技术相同安装于加工机床上,如图4所示:7为盘类零件,其上有止口面8,将零件7插装在定位盘3的内孔,使其止口面8进入径向弹性垫圈1的内孔;通过液压控制装置驱动油压柱塞4顶靠压盘2,由压盘2压向径向弹性垫圈1,使径向弹性垫圈1变形,变形的同时其内侧面10对零件7的止口面8进行夹持,利用夹持产生的摩擦力和弹性变形的影响,在夹持零件过程中又轴向拉紧零件7,不但装夹牢固,又自动定心,非常方便。

Claims (1)

1.一种盘类零件外定心夹紧机构,包括夹具体(5),其特征在于:在夹具体(5)的内孔处设有柱塞体(6),上方设有定位盘(3);在定位盘(3)内孔处设有压盘(2),压盘(2)与定位盘(3)的上端板之间设有径向弹性垫圈(1);在柱塞体(6)上设有圆周均匀分布的与进出油油孔(11)相连通的柱塞腔(12),柱塞腔(12)内装设有油压柱塞(4),油压柱塞(4)的端头与所述的压盘(2)相配;所述的径向弹性垫圈(1)呈圆环状,内侧部分向上翘起并在圆周内侧设有均匀分布的开口(9)。
CN2009100109658A 2009-04-01 2009-04-01 盘类零件外定心夹紧机构 Expired - Fee Related CN101579826B (zh)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825485B (zh) * 2012-02-15 2014-11-26 沈阳富创精密设备有限公司 加工盘类零件的夹具
CN102862079A (zh) * 2012-10-20 2013-01-09 无锡蠡湖叶轮制造有限公司 自动定心压紧夹具
CN105108527A (zh) * 2015-09-01 2015-12-02 武汉船用机械有限责任公司 一种曲柄销盘卧式镗铣工装及其使用方法
CN110561142A (zh) * 2019-04-11 2019-12-13 齐齐哈尔雷昂重工机械制造有限责任公司 一种工作台自动定心卡紧机构
CN113118682B (zh) * 2019-12-30 2023-04-14 中核北方核燃料元件有限公司 一种用于自动端板焊接的分体棒束夹具

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