Spring machine with spring length adjusting device

Abstract

The invention discloses a spring machine with a spring length adjusting device, and belongs to the technical field of precise efficient processing and forming equipment. The spring machine is provided with a push broach which is propped against the external surface of a spring. According to the spring machine, when the pitch of the spring excesses a specified value, a control system drives a driving motor so that an eccentric sleeve rotates, and the push broach is moved back, thus, the pressure on the spring can be released, as a result, the pitch of the spring is reduced; conversely, when the pitch of the spring is less than the specified value, the pressure on the spring is increased through the push broach under the driving of the driving motor and the eccentric sleeve, thus the pitch of the spring is raised. The spring machine has simple structure, and is convenient to operate, and can effectively improve the percent of pass of the product and reduce the cost of production; and the spring machine removes the conventional mode of manually adjusting the processing cutter, and therefore the precision of the product can be greatly improved.

Description

technical field [0001] The invention relates to a spring machine with a spring length adjustment device, which can adjust the pitch of the spring that will exceed the upper and lower limits during spring production, so that the pitch of the product is near the middle value of the specified range, and belongs to the technical field of precision and efficient processing and forming equipment . Background technique [0002] The use of the spring machine has replaced the previous method of producing springs by hand. It has high precision and high production efficiency, and can also produce some springs with specifications and shapes that cannot be manufactured manually. But, the spring that current spring machine produces also has a certain amount of defective products. For example, due to the change of the linear direction of the raw material, the instability of the tensile strength, or the vibration of the spring during forming, the pitch of the spring deviates from the speci...

AI Technical Summary

Problems solved by technology

However, there are still a certain number of defective products in the springs produced by the current spring machines.

For example, due to the change of the linear direction of the raw material, the instability of the tensile strength, or the vibration of the spring during forming, the pitch of the spring deviates from the specified value. The error requirements are naturally very strict, so the produced products may be discarded or need to be manually screened, resulting in a lot of waste

At present, the measures adopted in the industry are to manually adjust the position of the tool so that the pitch of the spring is controlled within the specified value. However, the accuracy cannot be guaranteed by manual adjustment, and it may need to be adjusted several times. Not only the efficiency Low, and will affect the production schedule

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