A CNC Rolling Machine Tool for Torsion Shaft Cylindrical Rolling

Abstract

The invention provides a numerically controlled cylindrical rolling machine tool for external rolling processing of a torsion shaft, which comprises a machine tool body, a cylindrical rolling head, a double-center positioning device, a fork connecting piece, an internal spline ferrule, a full A closed protective cover, a displacement measurement system, a precision oil mist cooling system, a numerical control system and a hydraulic system; the cylindrical rolling head of the present invention adopts the structure of a multi-roller symmetrical rolling device. The radial direction is subjected to multiple equal pressures; a displacement sensor is installed in the hydraulic cylinder of the cylindrical rolling head, and the displacement value of the rolling cylinder fed back by the displacement sensor is used to calculate the change value of the rolling diameter during the cylindrical rolling process, which can be Realize the intelligent judgment of the limit position of the outer circle rolling arc end; replace the traditional chuck with the shifting fork connector, optimize the transmission structure, and at the same time make the operation more convenient for workers, more suitable for streamlined production operations, and higher rolling processing efficiency.

Description

technical field [0001] The invention relates to a numerically controlled rolling machine tool, in particular to a numerically controlled rolling machine tool used for the outer circle rolling processing of a torsion shaft. Background technique [0002] At present, most of the suspension devices of special vehicles adopt the torsion axle suspension system. The torsion shaft is an important component in the suspension device of special vehicles. When the vehicle is driving on uneven roads, the torsion shaft is elastically twisted and released energy to achieve the purpose of buffering and shock absorption. During the working process, the torsion shaft is often subjected to large stress, large strain, impact and alternating torque loads, and it is easy to cause fatigue fracture from the outer circle and transition arc, which becomes a bottleneck restricting the overall performance of the vehicle. Therefore, it is very important to improve the working performance and fatigue li...

AI Technical Summary

Problems solved by technology

At present, ordinary torsion shaft cylindrical rolling strengthening machine tools have been widely used in production lines, but there are still many problems in the use process, which is not conducive to large-scale production and development of products

[0004] The main problems are as follows: (1) The left end of the torsion shaft is clamped and positioned by a chuck, the structure is relatively complicated, and it is inconvenient to install the torsion shaft when the outer circle is rolled

(2) A single-wheel rolling device is used. During the rolling process, the torsion shaft will be subjected to a large radial force, which is easy to cause a large bending deformation of the torsion shaft during the rolling process, thereby affecting the outer circle of the torsion shaft. pressure effect

(3) The rolling limit position of the left and right ends of the outer circle of the torsion shaft requires manual judgment by the workers, which increases the labor intensity of the workers and affects the processing quality

(4) Workers are required to manually lubricate and cool the machine tool and workpiece, which has the disadvantages of low efficiency, large oil pollution, and dangerous operation during processing

(5) Cylindrical rolling processing and dedendum rolling processing are carried out on the same rolling machine tool. Cylindrical rolling processing and dedendum rolling processing cannot be carried out at the same time, which greatly reduces the rolling processing efficiency and increases the number of workers. Difficulty in operating the machine tool

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