Full-electric servo vertical three-counter-roller driving power spinning device

Patent metadata

Field	Value
Publication number	US-11292045-B2
Application number	US-202016929127-A
Country	US
Kind code	B2
Filing date	Jul 15, 2020
Priority date	Jul 22, 2019
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A full-electric servo vertical three-counter driving power spinning device includes a rack, and the rack includes a baseplate. A workpiece active rotating mechanism and an inner roller feeding mechanism are provided on the baseplate, an outer roller feeding mechanism is provided on the rack; the outer roller feeding mechanism is provided with an outer roller active rotating mechanism; the outer roller active rotating mechanism includes an outer roller active rotating motor and an outer roller, and the inner roller feeding mechanism includes an inner roller. A stress state of a cylinder material by adopting a combined method of an active rotation of a roller and an active rotation of a workpiece turntable is significantly different from that by a passive spinning of a counter-roller, thus improving a thinning rate of a wall thickness of a cylindrical member and a hardening properties of materials.

First claim

The invention claimed is:

1. A full-electric servo vertical three counter-roller driving power spinning device, comprising:
a rack, wherein the rack comprises a baseplate, a workpiece active rotating mechanism and an inner roller feeding mechanism are provided on the baseplate, an outer roller feeding mechanism is provided on the rack; the outer roller feeding mechanism is provided with an outer roller active rotating mechanism; the outer roller active rotating mechanism comprises an outer roller active rotating motor and an outer roller, and the inner roller feeding mechanism comprises an inner roller;
wherein the workpiece active rotating mechanism is used to clamp and rotate a cylinder workpiece to be processed; the outer roller feeding mechanism causes the outer roller to move in axial and radial directions of the cylinder workpiece, the outer roller active rotating motor drives the outer roller to rotate; the inner roller feeding mechanism causes the inner roller to move in the axial and radial directions of the cylinder workpiece, the outer roller and the inner roller cooperate to realize a spinning processing of the cylinder workpiece to be processed.

2. The full-electric servo vertical three counter-roller driving power spinning device according to claim 1 , wherein the outer roller feeding mechanism comprises an outer roller radial feeding mechanism and an outer roller axial feeding mechanism;
the outer roller axial feeding mechanism comprises a plurality of moving beams, a pillar, a first screw and a first servo motor; a number of the plurality of moving beams is three; each moving beam of the plurality of moving beams is parallel to the baseplate of the rack, and two ends of the each moving beam are respectively connected to a side plate; the three moving beams form a triangle, and a plurality of outward end surfaces of the side plate at both ends of two adjacent moving beams of the three moving beams are connected by a stop, and a plurality of upper end surfaces of the side plate at the both ends of the two adjacent moving beams are connected by a reinforcement plate; a screw nut is installed in a center of the each moving beam, and the screw nut is connected to the first screw, wherein the first screw is perpendicular to the each moving beam; a bottom of the first screw is fixed to the baseplate and connected to the first servo motor, a top of the first screw is fixedly connected to the rack; a plurality of guide sleeves are fixedly installed on both sides of the screw nut on the each moving beam; a guide sleeve of the plurality of guide sleeves cooperates with the pillar, wherein the pillar is perpendicular to the each moving beam, a first end of the pillar is fixed on the baseplate, and a second end of the pillar is fixed on the rack;
the outer roller radial feeding mechanism comprises a second servo motor, a second screw, a guide rail, an outer roller seat; the side plate is provided with the guide rail on another side, the guide rail is provided with a slider fixedly connected with the outer roller seat; an axis of the second screw is parallel or located on a plane, and the each moving beam is located on the plane; a first end of the outer roller seat is provided with the outer roller, and a second end of the outer roller seat is provided with the screw nut and is connected with the second screw, and an end of the second screw is fixed at the stop and connected with the second servo motor.

3. The full-electric servo vertical three counter-roller driving power spinning device according to claim 2 , wherein the inner roller feeding mechanism comprises a plurality of inner roller pillars, an inner roller top plate, an inner roller upper plate, an inner roller lower plate, a third screw and a third servo motor;
a number of the plurality of inner roller pillars is three, each inner roller pillar of the plurality of inner roller pillars is perpendicular to the baseplate, a first end of the each inner roller pillar is fixed on the baseplate, and a second end of the each inner roller pillar is fixedly connected to the inner roller top plate, and a middle section of the each inner roller pillar is respectively connected to the inner roller upper plate and the inner roller lower plate through the plurality of guide sleeves; three inner roller shafts are installed between the inner roller upper plate and the inner roller lower plate, the inner roller is installed on an inner roller shaft of the three inner roller shafts, each of the inner roller upper plate and the inner roller lower plate is provided with a plurality of U-shaped grooves, the inner roller shaft of the three inner roller shafts slides in the plurality of U-shaped grooves of the inner roller upper plate and the inner roller lower plate; and one cam mounting cylinder is installed between the inner roller upper plate and the inner roller lower plate, a bottom of the cam mounting cylinder is inserted into the inner roller lower plate and the bottom of the cam mounting cylinder rotates around an axis of the cam mounting cylinder, an upper part of the cam mounting cylinder passes through the inner roller upper plate and is connected with a worm gear by a first flat key, the cam mounting cylinder is installed with two cams via a second flat key respectively at a plurality of positions, wherein the plurality of positions are adjacent to the inner roller upper plate and the inner roller lower plate; a convex surface of a cam of the two cams is tangent to a shaft of the inner roller; two identical worm seats are installed on the inner roller upper plate, and are respectively connected to both ends of a worm, one end of the worm is provided with a synchronous pulley, wherein the synchronous pulley is connected to a pulley at a shaft end of a brake motor through a synchronous belt; the worm is engaged with the worm gear, and the worm gear is fixedly mounted on the cam mounting cylinder by the first flat key; the inner roller lower plate is connected to the third screw by the screw nut, a bottom of the third screw is fixed on the baseplate and connected to the third servo motor.

4. The full-electric servo vertical three counter-roller driving power spinning device according to claim 3 , wherein the workpiece active rotating mechanism comprises a fourth servo motor, a pinion gear, a gear turntable and a roller;
the roller is mounted on the baseplate by a plurality of bearings and a shaft of the roller so that the roller rotates around an axis of the roller;
the fourth servo motor is installed on the baseplate by a speed reducer, an output shaft of the speed reducer is fixedly installed with the pinion gear, wherein the pinion gear is engaged with the gear turntable, a bottom of the gear turntable is mounted on a flange of the roller, an upper surface of the gear turntable is provided with a T-shaped groove;
a top of the gear turntable is mounted with a cylindrical workpiece, and a bottom of the cylindrical workpiece is fixed on the T-shaped groove of the gear turntable by a plurality of screws.

5. The full-electric servo vertical three counter-roller driving power spinning device according to claim 4 , wherein the rack comprises an upper beam, a top of the pillar is connected with the upper beam by a lock nut, a cover plate is installed on a top of the upper beam, and the inner roller top plate is connected with the upper beam by the cover plate; three nitrogen balance cylinders are installed on the upper beam, and an end of a piston rod of each of the three nitrogen balance cylinders is connected with the reinforcement plate.

Assignees

• Univ Xi An Jiaotong

Inventors

• Zhao Shengdun
• Li Fan
• Zhu Chengcheng
• Fan Shuqin
• Jiang Hong

Classifications

• B21D22/16 Primary

  over shaping mandrels or formers · CPC title

• B21D22/14 Primary

  Spinning · CPC title

• B21D22/18

  using tools guided to produce the required profile · CPC title

• B21D41/026

  by means of mandrels · CPC title