Die forging crankshaft and connecting rod trimming die device

Abstract

The invention provides a die forging crankshaft and connecting-rod flash cutting die device. A plurality of flash removing devices (3) are distributed on an upper die plate (11), each of the flash removing devices (3) consists of an inner sleeve (4), an outer sleeve (5), a spring (6), an ejection block (7), a guide rod sleeve (8) and a pull rod (9), the outer sleeve (5) is matched with the inner sleeve (4) in a sliding-limiting mode, the spring (6) is installed in the inner sleeve (4) and exerts pressure on the outer sleeve (5), and the lower end face of the outer sleeve (5) is connected with the ejection block (7) through a screw. According to the size and shape of a die forging subjected to flash cutting, two or more flash removing devices (3) are distributed and installed on the upper die plate (11). The flash removing devices (3) are small in size, universal and convenient to adjust and use and is not influenced by the complication degree of die forging shapes and size change.

Description

technical field [0001] The invention relates to a die forging crankshaft and connecting rod trimming die device, in particular to the improvement of the flash unloading device for the die forging crankshaft and connecting rod trimming die device. Background technique [0002] Die forgings are divided into planes and spatial surfaces. Die forgings are of different sizes, types and complex shapes, especially for crankshafts. [0003] Die forgings are trimmed in a hot state. The upper punch and the lower die of the trimming die cooperate to trim the forging. After the upper punch enters the lower die to complete the edge trimming, the cut flash often occurs On the upper punch, so a flash unloading device is installed on the upper template of the edge trimming mold. When the upper punch resets with the upper template, the flash unloading device pushes the cut flash, and the flash is raised from the upper Remove from the mold. [0004] The flash unloading device on the edge tri...

AI Technical Summary

Problems solved by technology

[0006] 1. The unloading top plate is an integral large flat plate. The size of the unloading top plate is larger than that of the forging. The larger the forging, the larger the size of the unloading top plate. Not only the weight and space occupied are large, but also it cannot be used universally. Configure the unloading plate corresponding to the size, and perform replacement loading and unloading

[0007] 2 The scope of application is small, limited to die forgings with simple shapes and flat die forgings, it is not suitable for die forgings with three-dimensional die forgings, especially crankshafts

[0008] 3 The space occupied by the unloading top plate is large, which affects the placement of forgings and limits the placement space of forgings

[0009] 4 When installing the mold, it is inconvenient to adjust the position of the upper punch, which affects the installation position and adjustment of the upper punch and the lower die

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