Double-end automatic machining machine for valve rods

一种阀杆双头自动加工机

Abstract

本实用新型涉及一种阀杆双头自动加工机,包括主机台、拖板机构、主轴机构、送料机构、刀架、控制机构;主要是主轴机构为双头自动夹紧装置,拖板机构由安装在主轴机构两侧的左拖板和右拖板组成;所述双头自动夹紧装置由主轴头、主轴、膨胀夹头、夹紧活塞组成;夹紧活塞具有与主轴小圆孔相同直径的内孔,膨胀夹头外圆面与夹紧活塞及主轴的内孔动配合,膨胀夹头两端的喇叭形外圆锥面分别与夹紧活塞及主轴内孔端部的内圆锥面相互配合;夹紧活塞的活塞腔通过主轴头上的进油口和出油口与液压系统连通。实现对阀杆两端同时加工,具有加工效率高、阀杆两端外圆同心度好等优点。适用于阀杆两端外圆的切削。
The utility model relates to a double-end automatic machining machine for valve rods. The double-end automatic machining machine comprises a main machine platform, a carriage mechanism, a spindle mechanism, a feeding mechanism, a cutter rest and a control mechanism. The spindle mechanism is a double-end automatic clamping device, and the carriage mechanism is composed of a left carriage and a right carriage which are arranged on the two sides of the spindle mechanism. The double-end automatic clamping device is composed of a spindle head, a spindle, an expansion chuck and a clamping piston, wherein the clamping piston is provided with an inner hole with the diameter the same as the diameter of a small round hole of the spindle, the external circular surface of the expansion chuck is in movable fit with the inner hole of the clamping piston and an inner hole of the spindle, and horn-shaped external circular conical surfaces at the two ends of the expansion chuck are matched with an internal circular conical surface of the end portion of the inner hole of the clamping piston and an internal circular conical surface of the end portion of the inner hole of the spindle respectively. A piston cavity of the clamping piston is communicated with a hydraulic system through an oil inlet and an oil outlet which are formed in the spindle head. By means of the double-end automatic machining machine, the two ends of each valve rod can be machined at the same time. The double-end automatic machining machine has the advantages that the machining efficiency is high, and the concentricity of external circles at the two ends of each valve rod is good. Accordingly, the double-end automatic machining machine is suitable for cutting the external circles at the two ends of each valve rod.

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    CN-104162684-ANovember 26, 2014志远科技有限公司Automatic valve rod double-head machining machine
    CN-104162684-BAugust 17, 2016志远科技有限公司一种阀杆双头自动加工机