CN101985182B - 能可靠顶紧的上顶尖驱动装置 - Google Patents

能可靠顶紧的上顶尖驱动装置 Download PDF

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CN101985182B
CN101985182B CN 201010165980 CN201010165980A CN101985182B CN 101985182 B CN101985182 B CN 101985182B CN 201010165980 CN201010165980 CN 201010165980 CN 201010165980 A CN201010165980 A CN 201010165980A CN 101985182 B CN101985182 B CN 101985182B
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sleeve
screw nut
hole
lead screw
feed screw
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CN101985182A (zh
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胡超
汤亮
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ANHUI CHIZHOU WEISHUN M&E Co Ltd
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Abstract

本发明公开了一种能可靠顶紧的上顶尖驱动装置，在壳体(6)一端有支座，所述的支座上转动安装有丝杆(8)，所述的丝杆上螺合有丝杆螺母(4)，所述的丝杆螺母(4)外固定套装有套筒(9)，所述的套筒外固定连接有联接套筒(5)；所述的壳体(6)上滑动配合有滑板(11)，所述的滑板(11)内有通孔，联接套筒(5)在所述的通孔内滑动配合，所述的套筒(9)滑套在调整套(10)前端，所述的丝杆(8)外套装有碟形弹簧(7)，碟形弹簧(7)顶压于调整套(10)、丝杆螺母(4)之间；所述的滑板(11)上安装有顶尖套(12)。本发明舍弃了油缸，不会造成上顶尖顶紧力的过度波动，大大提高了工件和刀具的安全性，同时具有结构简单、易于实现和工作可靠的优点。

Description

能可靠顶紧的上顶尖驱动装置
技术领域
本发明涉及一种圆柱齿轮加工机床，尤其是一种滚齿机后立柱顶尖驱动机构，具体地说是一种能可靠顶紧的上顶尖驱动装置。
背景技术
众所周知，现代滚齿机大多配有后立柱，工件的定心与夹紧离不开上顶尖，上顶尖的驱动机构大多采用油缸，上顶尖位置控制能力差，结构复杂，故障率高，顶紧力变化范围大。如果油压过低，表面上看工件上顶尖已顶紧，但可能未完全顶紧，随着切削力的增大，可能使工件意外滑转，引起工件或刀具的报废。如果油压过高，可能使工件弯曲，引起上中心孔变形或工件精度超差。因此如何控制上顶尖的顶紧力，防止工件和刀具意外损耗是目前滚齿机设计中的一个难点。
发明内容
本发明的目的是针对现有的滚齿机上顶尖顶紧力大小变化大，易发生工件和刀具意外损耗的问题，设计一种结构简单，容易控制的滚齿机上顶尖顶紧装置，以解决滚齿机后立柱上顶尖顶紧过程长期存在的问题。
本发明的技术方案是：
一种能可靠顶紧的上顶尖驱动装置，包括有壳体(6)，所述的壳体(6)一端有支座，所述的支座上转动安装有丝杆(8)，所述的丝杆上螺合有丝杆螺母(4)，所述的丝杆螺母(4)外固定套装有套筒(9)，所述的套筒外固定连接有联接套筒(5)；所述的壳体(6)上滑动配合有滑板(11)，所述的滑板(11)内有通孔，所述的通孔的前端旋合有调整套(10)，所述的调整套(10)中间有通孔，所述的丝杆(8)从通孔中穿过，所述的联接套筒(5)在所述的通孔内滑动配合，所述的套筒(9)滑套在调整套(10)前端，所述的丝杆(8)外套装有碟形弹簧(7)，套筒(9)套在碟形弹簧(7)外，碟形弹簧(7)顶压于调整套(10)、丝杆螺母(4)之间；所述的滑板(11)上安装有顶尖套(12)。
所述的能可靠顶紧的上顶尖驱动装置，其特征是在丝杆螺母(4)端部安装有法兰(2)，法兰(2)和丝杆螺母(4)之间装有缓冲垫(3)；所述的法兰(2)与联接套筒(5)固定连接。
本发明的有益效果：
本发明的上顶尖采用丝杆螺母压缩碟形弹簧，用碟形弹簧的弹力进行驱动，可靠性高，具有很好的实用性。
本发明舍弃了油缸，不会造成上顶尖顶紧力的过度波动，大大提高了工件和刀具的安全性，同时具有结构简单、易于实现和工作可靠的优点。
附图说明
图1是本发明的结构示意图
具体实施方式
下面结合附图对本发明作进一步的说明。
如图1所示。
一种能可靠顶紧的上顶尖驱动装置，包括有壳体6，所述的壳体6一端有支座13，所述的支座13上通过轴承1转动安装有丝杆8，所述的丝杆8上螺合有丝杆螺母4，所述的丝杆螺母4外固定套装有套筒9，所述的套筒9外固定连接有联接套筒5；丝杆螺母4端部安装有法兰2，法兰2和丝杆螺母4之间装有缓冲垫3；所述的法兰2与联接套筒5固定连接。
所述的壳体6上滑动配合有滑板11，滑板另通过安装于壳体6上的直导轨导向滑动，所述的滑板11内有通孔，所述的通孔的前端旋合有调整套10，所述的调整套10中间有通孔，所述的丝杆8从通孔中穿过，所述的联接套筒5在所述的通孔内滑动配合，所述的套筒9滑套在调整套10前端，所述的丝杆8外套装有碟形弹簧7，套筒9套在碟形弹簧7外，碟形弹簧7顶压于调整套10、丝杆螺母4之间；所述的滑板11上安装有顶尖套12。所述的丝杆螺母4通过套筒9压缩碟形弹簧7，碟形弹簧7的弹力向下驱动滑板滑板11和顶尖套12。
本发明在顶紧过程中，首先由伺服电机拖动丝杆8进行旋转，带动丝杆螺母4沿箭头方向运动，使套筒9压缩碟形弹簧7的一端，碟形弹簧7的另一端通过调整套10带动滑板11，最终实现顶尖套12的上下直线运动，使滚齿机上顶尖顶紧工件的中心孔。

Claims (2)

1.一种能可靠顶紧的上顶尖驱动装置，包括有壳体(6)，所述的壳体(6)一端有支座，所述的支座上转动安装有丝杆(8)，所述的丝杆上有丝杆螺母(4)，丝杆与螺母螺纹配合连接，所述的丝杆螺母(4)外固定套装有套筒(9)，所述的套筒外固定连接有联接套筒(5)；所述的壳体(6)上滑动配合有滑板(11)，所述的滑板(11)内有通孔，所述的通孔的前端有调整套(10)，通孔与调整套螺纹配合连接，所述的调整套(10)中间有开孔，所述的丝杆(8)从开孔中穿过，所述的联接套筒(5)在所述的通孔内滑动配合，所述的套筒(9)滑套在调整套(10)前端，所述的丝杆(8)外套装有碟形弹簧(7)，套筒(9)套在碟形弹簧(7)外，碟形弹簧(7)顶压于调整套(10)和丝杆螺母(4)之间；所述的滑板(11)上安装有顶尖套(12)。
2.根据权利要求1所述的能可靠顶紧的上顶尖驱动装置，其特征是在丝杆螺母(4)端部安装有法兰(2)，法兰(2)和丝杆螺母(4)之间装有缓冲垫(3)；所述的法兰(2)与联接套筒(5)固定连接。 
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CN104117695B (zh) * 2014-07-16 2017-01-25 宁波夏拓机械装备有限公司 一种偏置扭力梁弹性尾架
CN106270817B (zh) * 2016-09-30 2018-07-06 浙江日创机电科技有限公司 一种滚齿机悬挂式顶尖尾座
CN107042318B (zh) * 2017-04-05 2019-05-10 宁波海天精工股份有限公司 一种立式车削中心用工件顶紧机构

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