The invention provides a positioning shaft with improved structure, which belongs to the field of mechanical technology. It solves the problem of inconvenience in assembling the existing positioning shaft when it is used with the help of other fastening accessories. The positioning shaft of the improved structure consists of a head and a handle, and a sinking hole is arranged on the outer wall of the handle. The two sinking holes are connected through a through hole. A spring and a locking block fixed at both ends of the spring are installed in the through hole. The locking block is composed of a connecting part and a locking part. The connecting part is inserted in the through hole. The outer diameter of the locking part is larger than that of the through hole, and a part of the locking part is located in the sinking hole and connected with the spring. There is a gap between the bottom of the sinking hole, and the other part of the locking part extends out of the sinking hole, and there is an inlet surface on the side wall of the locking part. When the locking part is stressed, the locking part can be fully retracted into the sinking hole, an oil hole is opened on the handle, an oil tank is opened on the side wall of the handle, and the oil tank and the oil hole are communicated through the oil channel. The invention has the advantages of simple structure and strong practicability.
【技术实现步骤摘要】
改良结构的定位轴
本专利技术属于机械
,特别涉及一种改良结构的定位轴。
技术介绍
定位轴是机械加工中常用的定位工具,在机械加工中应用非常广泛,普通的定位轴一般是采用插设方式安装于设备部件上的,再通过相对应的螺母或卡箍等紧固件将其紧固在设备部件上,这不仅安装麻烦,而且安装工人在繁重的安装作业中易忘记给定位轴安装螺母或卡箍,从而存在安全隐患,易发生安全事故。
技术实现思路
本专利技术的目的是针对现有的技术存在上述问题,提出了一种结构简单、实用性强的改良结构的定位轴。本专利技术的目的可通过下列技术方案来实现:一种改良结构的定位轴,包括连为一体的头部和柄部,头部的外径大于柄部的外径,其特征在于,在柄部两相对的外侧壁上沿径向方向开设有对称设置的沉孔,两沉孔之间通过通孔相连通且通孔的孔径小于沉孔的孔径,在通孔内安装有弹簧及固连于弹簧两端的锁紧块,锁紧块由连为一体的连接部和锁紧部组成,连接部插设于通孔内,锁紧部的外径大于通孔孔径,且锁紧部一部分位于沉孔内并与沉孔底部之间具有间隙,锁紧部另一部分伸出沉孔且在该部分的锁紧部侧壁上具有导入面,当锁紧部受力时能使锁紧部完全缩入至沉孔内,在柄部沿轴心方向开设有油孔且油孔直通至头部上端面,在柄部的侧壁上沿轴向方向开设有若干均匀分布的油槽且油槽与油孔通过油道相通。与现有技术相比,本专利技术通过在柄部上开设沉孔和通孔,并在通孔内对应的配置有锁紧块,当定位轴在插入至设备部件轴孔过程中,锁紧块受挤压向内移动直至完全缩入至沉孔内,此时定位轴能顺利的通过轴孔,在锁紧块通过轴孔后,在弹簧弹力的作用下,锁紧块恢复至初始位置且抵靠在销孔端部上,从而 ...
【技术保护点】
1.一种改良结构的定位轴,包括连为一体的头部和柄部,头部的外径大于柄部的外径,其特征在于,在柄部两相对的外侧壁上沿径向方向开设有对称设置的沉孔,两沉孔之间通过通孔相连通且通孔的孔径小于沉孔的孔径,在通孔内安装有弹簧及固连于弹簧两端的锁紧块,锁紧块由连为一体的连接部和锁紧部组成,连接部插设于通孔内,锁紧部的外径大于通孔孔径,且锁紧部一部分位于沉孔内并与沉孔底部之间具有间隙,锁紧部另一部分伸出沉孔且在该部分的锁紧部侧壁上具有导入面,当锁紧部受力时能使锁紧部完全缩入至沉孔内,在柄部沿轴心方向开设有油孔且油孔直通至头部上端面,在柄部的侧壁上沿轴向方向开设有若干均匀分布的油槽且油槽与油孔通过油道相通。
【技术特征摘要】
1.一种改良结构的定位轴,包括连为一体的头部和柄部,头部的外径大于柄部的外径,其特征在于,在柄部两相对的外侧壁上沿径向方向开设有对称设置的沉孔,两沉孔之间通过通孔相连通且通孔的孔径小于沉孔的孔径,在通孔内安装有弹簧及固连于弹簧两端的锁紧块,锁紧块由连为一体的连接部和锁紧部组成,连接部插设于通孔内,...
【专利技术属性】
技术研发人员:杨华英,
申请(专利权)人:宁波市鄞州昊初机械制造有限公司,
类型:发明
国别省市:浙江,33
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。