Mechanical pre-pressing machine adjustable in pre-pressing stroke for leaf spring

Abstract

The invention relates to the field of leaf spring machining, in particular to a mechanical pre-pressing machine adjustable in pre-pressing stroke for a leaf spring. The mechanical pre-pressing machinecomprises a portal frame body erected on the ground, a frame body vertically ascends and descends in the portal frame body, the center of the bottom of the frame body is open, and a circle of embedding groove is vertically formed in the inner wall of the frame body in an inwards-concave mode; a pair of bearing blocks used for bearing the leaf spring to be machined are horizontally arranged in thepositions, located at openings in the two ends of the frame body, of the inner wall of the embedding groove in a sliding mode, first lead screws are detachably installed on the side walls of the twobearing blocks, and the peripheral sides of the first lead screws are horizontally arranged in the frame body in a threaded and penetrating mode; and driving pieces for driving the two bearing blocksto move in the same direction or opposite directions are arranged on the outer wall of the frame body. The mechanical pre-pressing machine has the effect that use universality of the pre-pressing machine is improved so that steel plate springs of various types can be machined.

Description

technical field [0001] The present application relates to the field of leaf spring processing, in particular to a mechanical pre-pressing machine with adjustable pre-pressing stroke of leaf spring. Background technique [0002] Leaf spring is the most widely used elastic element in automobile suspension. It is composed of several alloy spring pieces of equal width but unequal length (the thickness can be equal or not). An approximately equal strength elastic beam. [0003] In all vehicles, the suspension system is one of the important assemblies. The leaf spring connects the frame and the axle elastically. Its main task is to ease the impact load transmitted to the frame from the uneven road to ensure the normal operation Driving, and has a certain impact on the car's ride comfort, stability, passability and fuel economy. [0004] In the process of leaf spring processing, the raw material alloy spring sheet is cut → center hole, rivet hole processing → piece end processing...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned related technologies, the leaf spring is assembled from alloy spring pieces of different lengths. During the bending of the leaf spring piece by piece, it is difficult to match the steel plates of different lengths with the same clearance of the supporting parts. At the same time, the pressing strokes of the pre-pressing machine for leaf springs of different lengths are consistent, so the inventor believes that it is difficult for the same pre-pressing machine to adapt to all types of leaf springs, and the versatility is poor, so it needs to be improved

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