Punching and blanking progressive die for automobile drive axle locking washer and machining method of punching and blanking progressive die

Abstract

The invention discloses a punching and blanking progressive die for an automobile drive axle locking washer. The progressive die comprises an upper die and a lower die, wherein the upper die comprises an upper die plate, an upper backing plate and a male die fixing plate; a step hole punching male die, a small-mounting-hole punching male die I, a large-mounting-hole punching male die, a blanking male die and an upper leftover cutting-off die are arranged in the male die fixing plate in sequence in a blanking machining feeding direction; a small-mounting-hole punching male die II is mounted on the die surface of the large-mounting-hole punching male die in a staggered way; the lower die comprises a punching and blanking multi-station female die, a lower backing plate and a lower die plate; female die cavity positions in one-to-one correspondence with the positions of the male dies are set in the punching and blanking multi-station female die; a lower leftover cutting-off die which corresponds to the upper leftover cutting-off die in position is arranged in the punching and blanking multi-station female die; and the step hole punching male die, the small-mounting-hole punching male die I, the large-mounting-hole punching male die, the blanking male die and the punching and blanking multi-station female die together form a machining forming cavity for the locking washer. The product produced by the punching and blanking progressive die has a regular shape, and the punching and blanking progressive die has a long service life.

Description

technical field [0001] The invention belongs to the field of mechanical processing equipment, and relates to a progressive die for punching and blanking a locking washer of an automobile drive axle. Background technique [0002] The installation of the car drive axle lock washer is to first set the large hole in the middle on the axle housing body, and then use the bolt to fasten it through the small hole to install it on the outer end of the rear hub bearing nut. Its main function is to prevent the rear hub from The bearing nut is loosened from the axle housing body to further ensure the stability of the assembly position of the outer bearing of the rear wheel hub, so as to ensure the stability of the driving process of the vehicle. [0003] The traditional production method of lock washers is divided into four processes for processing. Firstly, the single-point shearing machine is used to implement the first step of the material processing, and then the single-point press ...

AI Technical Summary

Problems solved by technology

Using the traditional production process, not only there are many steps in the process, but also the production time is long. The key is that the secondary positioning is required when punching the small hole for installation, which often leads to its position relative to the product shape being out of tolerance and cannot meet the assembly requirements.

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