Machining method for spring embracing part

Abstract

The invention discloses a machining method for a spring embracing part. When the spring embracing part is machined, a strip material is fed through a feeder and then placed into a space between an unloading plate and a lower die plate, the strip material sequentially passes through a first punching station, a second punching station, a third middle excess material blanking station, a fourth side excess material blanking station, a fifth workpiece end bending station, a sixth workpiece preliminary pre-bending station, a seventh workpiece secondary pre-bending station, an eighth workpiece preliminary circle-bending station, a ninth workpiece rounding station and a tenth workpiece connecting excess material cutting-off station to shear middle connecting excess materials and two-side connecting excess materials of two workpieces in the strip material, and then the two workpieces leak through falling holes.

Description

technical field [0001] The invention belongs to the field of processing circular parts, and in particular relates to a processing method for spring wraps. Background technique [0002] Such as figure 1 As shown, the applicant has designed a spring wrap, which has an assembly hole and two weight-reducing holes, and one end of the spring wrap passes through the assembly hole to form a circular wrap. At present, for this kind of circular workpiece, it is usually punched and rounded after blanking according to the unfolded size of the workpiece. This processing method has low forming efficiency and produces a lot of waste. In actual production, after the material is cut into strips, the material is fed to the progressive die through the automatic feeder, and after punching, edge trimming, and multiple pre-bending, a core rod is inserted into the pre-bent post through the cylinder. The hollow part of the workpiece is rounded, and finally the prepared workpiece is trimmed and th...

AI Technical Summary

Problems solved by technology

However, in the molding process of the above-mentioned workpieces, the core rods for the entire circle of the workpiece need to be fed through two cylinders. The rounding method is more complicated, and only one workpiece can be formed at a time, and the efficiency needs to be improved.

At the same time, in the feeding process, only the feeder is used to control the feeding rate of the strip, but not according to the length change after bending in each process. It is difficult to make the mold, and it is difficult to control the spacing and speed of each bending station.

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