Plate spring double-headed synchronous eye coiling production line and head cutting, eye coiling and shaping units thereof

Abstract

The invention discloses a plate spring double-headed synchronous eye coiling production line and head cutting, eye coiling and shaping units thereof. The production line is sequentially provided with a feeding unit, a heating unit, the head cutting unit, the eye coiling unit, the shaping unit and a product integrated packaging unit from front to back. A mechanical arm guiding track bracket which extends front and back is arranged between the feeding unit and the product integrated packaging unit, and the mechanical arm guiding track bracket is provided with a mechanical arm so that a plate spring can be transferred between all the units. The number of electromagnetic heating furnaces, the number of head cutting machines, the number of eye coiling machines and the number of shapers are all two, and the electromagnetic heating furnaces, the head cutting machines, the eye coiling machines and the shapers are all symmetrically arranged relative to the left-right center base line of the production line. The plate spring can be positioned when the two ends of the plate spring are heated, the transferring time difference to the head cutting process is shortened, the thermoplasticity of the plate spring in the head cutting process is guaranteed, the two ends can be cut synchronously in the head cutting process, and thus efficiency is high. In the eye coiling process, the feed machining method of the eye coiling machines is adopted, double-headed synchronous eye coiling is realized, eye machining efficiency is greatly improved, and the quality of obtained coiled eyes is obviously improved as well. Double-headed synchronous shaping is conducted, and hence the depth of parallelism of the coiled eyes of the plate spring can be better improved.

Description

technical field [0001] The invention relates to the field of leaf spring processing equipment, in particular to a leaf spring double-head synchronous ear rolling production line and a synchronous head cutting unit, ear rolling unit and shaping unit set in the production line. Background technique [0002] In the current production process of double-rolled ear leaf springs, the process steps of heating, center hole positioning, head cutting, ear rolling, and shaping are separated from each other, and a large amount of manual participation is required in the middle. Not only the production efficiency is low, but the quality of the processed products is not good. good. Especially when transferring between the two processes of heating to the positioning of the center hole, the leaf spring is first heated in the electromagnetic heating furnace for a predetermined time, and then taken out and moved to the positioning process for positioning. There is a certain long interval in the...

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Problems solved by technology

[0002] In the current production process of double-rolled ear leaf springs, the process steps of heating, center hole positioning, head cutting, ear rolling, and shaping are separated from each other, and a large amount of manual participation is required in the middle. Not only the production efficiency is low, but the quality of the processed products is not good. good

Especially when transferring between the two processes of heating to the positioning of the center hole, the leaf spring is first heated in the electromagnetic heating furnace for a predetermined time, and then taken out and moved to the positioning process for positioning. There is a certain long interval in the circulation time. For thinner leaf springs, when the positioning is completed and the head is cut and the ears are rolled, the temperature has dropped significantly, and the machining performance has dropped significantly, which will make the quality of the processed products unstable

In addition, the double-ended lugs are processed and formed in two separate steps, which involves two times of clamping and positioning, so the parallelism of the two ears is reduced, and there is a certain interval between the processing time of the two ends of the lugs, so there is mechanical plasticity during processing. There is a certain difference, resulting in a large difference in the mechanical properties of the two lugs processed, resulting in a reduction in the overall service life of the leaf spring

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