Axial centering device for shaft tube parts

Abstract

The invention discloses an axial centering device of axle tube type parts. The axial centering device comprises a rack, wherein the rack is rotatably provided with a forward-reversed screw rod; a left outer thread section is arranged at the left end of the forward-reversed screw rod and a right outer thread section is arranged at the right end of the forward-reversed screw rod; screwing directions of the left outer thread section and the right outer thread section are opposite; and the outer sides of the left outer thread section and the right outer thread section are in threaded connection with a left side block and a right slide block respectively; the forward-reversed screw rod is driven to rotate by a driving mechanism; the driving mechanism comprises a motor, a speed reducer and a clutch, which are connected in sequence; the speed reducer and the clutch are driven by the motor so that the forward-reversed screw rod is driven to rotate; the upper ends of the left slide block and the right slide block are connected with swinging arms, which extend frontwards, respectively; a vertical rotary shaft is arranged under the middle part of each swinging arm and the upper end of the rotary shaft penetrates through the middle part of the swinging arm; and the swinging arms can rotate along the rotary shafts and the front ends part of the swinging arms are used for pushing the end parts of the axle tube type parts. The axial centering device of the axle tube type parts has the advantages that the synchronism of the two swinging arms is high and the axial centering of the axle tube type parts is stable.

Description

technical field [0001] The invention relates to an axial centering device for shaft tube parts. Background technique [0002] For the machining of shaft and tube parts, it is often necessary to find the axial center of the shaft and tube parts, for example, it is necessary to drill holes at the axial center of the shaft and tube parts. The existing axial centering devices for shaft and tube parts generally use hydraulic drive, that is, both ends of the shaft and tube parts are driven by oil cylinders. The disadvantage is that the driving source is complex and needs to be equipped with a hydraulic system, which is easy to pollute and has a large force. It is easy to cause deformation of the workpiece; and because two driving sources are used at both ends, it is difficult to ensure the synchronous movement of the two ends of the device, and the axial centering accuracy is poor and the stability is poor. Contents of the invention [0003] The purpose of the present invention...

AI Technical Summary

Problems solved by technology

The existing axial centering devices for shaft and tube parts generally use hydraulic drive, that is, both ends of the shaft and tube parts are driven by oil cylinders. The disadvantage is that the driving source is complicated and needs to be equipped with a hydraulic system, which is easy to pollute and has a large force. It is easy to cause deformation of the workpiece; and because two driving sources are used at both ends, it is difficult to ensure the synchronous movement of the two ends of the device, the axial centering accuracy is poor, and the stability is poor

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