Cylindrical work piece bolt pressing apparatus

Abstract

The invention discloses a cylindrical work piece bolt pressing apparatus comprising an L-shaped installation seat. The side wall of the L-shaped installation seat is equipped with a plurality of fixing grooves fixing the L-shaped installation seat; the cylindrical work piece bolt pressing apparatus further comprises a thread sleeve and a screw rod forming a thread pair with the thread sleeve; a V-shaped groove cushion block supporting a cylindrical work piece is fixed on the upper side of the L-shaped installation seat; a transverse supporting plate is fixed on the side wall of the L-shaped installation seat; the thread sleeve is fixed on the transverse supporting plate; the screw rod is disposed in the thread sleeve; the lower end of the screw rod is rotationally provided with a V-shaped groove press head pressing the cylindrical work piece; and a rotary handle is fixed on the upper end of the screw rod. The cylindrical work piece bolt pressing apparatus is characterized by rational design, reliable work piece clamping, strong reinforcement, simple structure, convenient operation, convenient detachment, easy carrying, long service life, wide application range, low production cost and easy promotion and use.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a simple fixture, in particular to a columnar workpiece bolt pressing device. Background technique [0002] At present, during the machining of columnar workpieces, the most commonly used clamping tool is a three-jaw chuck because the outer contour of the columnar workpiece has a certain curvature. The three-jaw chuck is composed of a chuck body, movable jaws and jaw driving mechanism. Under the guide part of the three claws on the three-jaw chuck, there are threads that mesh with the plane threads on the back of the bevel gear. When the small bevel gear is turned with a wrench through the square hole, the bevel gear rotates, and the plane threads on the back simultaneously Drive the three jaws to approach or withdraw from the center to clamp workpieces with different diameters. However, if the three-jaw chuck is used for a long time, the chuck will wear out, and the...

AI Technical Summary

Problems solved by technology

Under the guide part of the three jaws on the three-jaw chuck, there are threads that mesh with the plane threads on the back of the bevel gear. When the small bevel gear is turned with a wrench through the square hole, the bevel gear rotates, and the plane threads on the back simultaneously Drive the three jaws to approach or withdraw from the center to clamp workpieces with different diameters. However, if the three-jaw chuck is used for a long time, the chuck will wear out, and the three jaws will also appear bell-mouthed, making the three jaws deviate from the chuck. In addition, the three-jaw chuck still has the disadvantages of large volume, heavy weight, and difficult disassembly.

Images