Spring coiling machine and spring coiling process

Abstract

The invention discloses a spring coiling machine and a spring coiling process. The spring coiling machine is characterized in that an upper pressing arm is V-shaped, and of which the middle is rotatably connected with a first rotating shaft; a lower pressing arm is inverted V-shaped, and of which the middle is rotatably connected with a second rotating shaft; upper pressing rolls used for downwards pressing a spring on a spring coiling shaft are arranged at the end, close to the spring coiling shaft, of the upper pressing arm; lower pressing rolls used for upwards pressing the spring on the spring coiling shaft are arranged at the end, close to the spring coiling shaft, of the lower pressing arm; the end, away from the spring coiling shaft, of the upper pressing arm is movably connected with the piston rod of an air cylinder; and the end, away from the spring coiling shaft, of the lower pressing arm is movably connected with the bottom of the air cylinder body. The spring coiling machine and the spring coiling process have the benefits as follows: the pressure is applied on the spring through the same air cylinder, so that the spring is under a uniform and equal pressure during the coiling process, the problem that the surface of the spring is under a non-uniform pressure is avoided, the spring after coiling is rounder and in accordance with the spring coiling requirement.

Description

technical field [0001] The invention relates to the field of spring rolling technology, in particular to a spring rolling machine and a spring rolling technology. Background technique [0002] Spring is a commonly used component in the industry. It is used in various products ranging from aircraft and warships to mobile phones and cameras. Most of the existing springs are produced by coiling spring machines. [0003] At present, in the prior art, in a Chinese patent document with the authorized announcement number CN203091616U, a coil spring device is recorded. At the clamping hole, the coil spring shaft rotates to roll the spring sheet. A spring retraction cylinder is arranged on the support plate. A spring retraction push rod is arranged at the lower end of the spring retraction cylinder. The upper guide wheel oil cylinder is arranged on the wheel frame, and the upper guide wheel is arranged at the front end of the upper guide wheel oil cylinder. [0004] However, the up...

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Problems solved by technology

[0004] However, the upper guide wheel and the lower guide wheel are controlled by the upper guide wheel oil cylinder and the lower guide wheel oil cylinder respectively, and the driving forces of the two oil cylinders are different, which will cause the upper guide wheel and the lower guide wheel to act differently on the rolling spring. , resulting in different bending arcs of the rolled springs, making the spring rolls not round enough to meet the standard requirements of spring rolling

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