The utility model relates to a vertical direct-coupled mechanical grinding head, which comprises a spindle motor. The shell of the spindle motor is connected with a sleeve through a connecting plate. The spindle of the spindle motor is connected with one end of the spindle through an elastic coupling. The spindle is installed in the sleeve through a left-supported composite bearing and a right-supported composite bearing. The left-supported composite bearing is located near the motor end of the right-supported composite bearing, and the elastic coupling. A locking nut screwed to the main shaft is arranged between the inner ring of the left supporting composite bearing, the grinding wheel is installed through the grinding wheel chuck at the other end of the main shaft, a right nut cover screwed to the main shaft is arranged between the inner ring of the right supporting composite bearing and the grinding wheel chuck, and a flange cover fixed to the end face of the sleeve is arranged between the outer ring of the right supporting composite bearing and the grinding wheel chuck. The utility model has the advantages of simple structure, compact structure, low processing and manufacturing cost, easy implementation, stable performance and high precision, which not only ensures high stiffness, but also ensures high accuracy and low vibration, and prolongs service life by means of pneumatic seal.
【技术实现步骤摘要】
一种立式直联机械磨头
本技术属于磨床磨头
,具体地说是一种立式直联机械磨头。
技术介绍
现有立式磨头一般有三种结构。第一种:电主轴结构,用于转速6000转/分钟以上高速转动的细短轴;第二种:动静压主轴结构,转速3000-6000转/分钟,该结构刚性好,振动小,精度高;第三种:采用电机+皮带传动主轴的结构,转速为3000转/分钟以下。这三类磨头结构的缺点在于:第一种:电主轴结构,由于轴比较细,生出端较短,刚性较弱,只能用于磨削深度较小的细孔;第二种:动静压主轴结构,采用液压油支承,发热大,主轴精度及刚性受油的粘度影响较大,长期工作维护成本高;第三种:采用电机+皮带传动主轴的结构,受皮带质量影响,振动大,皮带转速高时发热大,皮带磨损快,同时皮带的防水雾较难处理。
技术实现思路
本技术的目的在于提供一种结构简单、紧凑、加工制造调整方便、精度高,刚性好的立式直联机械磨头。按照本技术提供的技术方案:一种立式直联机械磨头,包括主轴电机,所述主轴电机外壳通过连接板与套筒连接,所述主轴电机主轴通过弹性联轴器与主轴一端连接,所述主轴通过左支承组合轴承和右支承组合轴承安装在所述套筒 ...
【技术保护点】
1.一种立式直联机械磨头,包括主轴电机(1),其特征在于:所述主轴电机(1)外壳通过连接板(3)与套筒(5)连接,所述主轴电机(1)主轴通过弹性联轴器(4)与主轴(7)一端连接,所述主轴(7)通过左支承组合轴承(8)和右支承组合轴承(9)安装在所述套筒(5)内,所述左支承组合轴承(8)位于所述右支承组合轴承(9)的近电机端,所述弹性联轴器(4)和所述左支承组合轴承(8)内圈之间设置有螺接在所述主轴(7)上的锁紧螺母(6),所述主轴(7)另一端通过砂轮夹盘(13)安装砂轮(14),所述右支承组合轴承(9)内圈与所述砂轮夹盘(13)之间设置有螺接在所述主轴(7)上的右螺母盖(1 ...
【技术特征摘要】
1.一种立式直联机械磨头,包括主轴电机(1),其特征在于:所述主轴电机(1)外壳通过连接板(3)与套筒(5)连接,所述主轴电机(1)主轴通过弹性联轴器(4)与主轴(7)一端连接,所述主轴(7)通过左支承组合轴承(8)和右支承组合轴承(9)安装在所述套筒(5)内,所述左支承组合轴承(8)位于所述右支承组合轴承(9)的近电机端,所述弹性联轴器(4)和所述左支承组合轴承(8)内圈之间设置有螺接在所述主轴(7)上的锁紧螺母(6),所述主轴(7)另一端通过砂轮夹盘(13)安装砂轮(14),所述右支承组合轴承(9)内圈与所述砂轮夹盘(13)之间设置有螺接在所述主轴(7)上的右螺母盖(10),所述右支承组合轴承(9)外圈和所述砂轮夹盘(13)之间设置有固定在所述套筒(5)...
【专利技术属性】
技术研发人员:邓明,谢振华,
申请(专利权)人:无锡市明鑫机床有限公司,
类型:新型
国别省市:江苏,32
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