Reinforcing type forging press indexing positioning device

Abstract

Forging and pressing machinery comprises a hydraulic press, a forging press, a friction press, an upsetting press and the like. In the process of bending and upsetting a blank in multiple angles, a mode of rotating and positioning by using the previous angle of bending as a reference is adopted generally, the forging and pressing accuracy is low, the production efficiency is low, and the rejection rate is higher. For example, in the process of forging and pressing a crankshaft, the subsequent forging and pressing process performs angle bending and upsetting by using the previous crankshaft as a reference; as the crankshaft needs to be bent and upset in multiple angles for many times until the upsetting of the last time is finished, the accumulated error is larger; and the mode greatly influences the bending and upsetting accuracy and the rate of finished products of the crankshaft due to natural cooling shrinkage and deformation of red hot bar stocks. By literature search, no special blank indexing positioning devices for upsetting are provided at present. In order to overcome the defects of the prior art, the invention provides a blank indexing positioning device for an upsetting press, which has high indexing accuracy and high production efficiency.

Description

technical field [0001] The invention belongs to the field of forging presses, and relates to a blank upsetting indexing and positioning device for a booster forging press. Background technique [0002] Forging machinery includes hydraulic presses, forging presses, friction presses, upsetting forging machines and other equipment. When performing multi-angle bending and upsetting of blanks, the method of rotating and positioning based on the previous bending angle is generally adopted. Not only the forging precision is low, but also Low production efficiency and high scrap rate. Taking the forging crankshaft as an example, the latter forging step is to perform angle bending and upsetting based on the previous crankshaft. Since the crankshaft needs to be subjected to multiple multi-angle bending and upsetting, the cumulative error is very large after the last upsetting is completed; And this way will also be deformed due to the natural cooling and shrinkage of the red-hot bar,...

AI Technical Summary

Problems solved by technology

[0002] Forging machinery includes hydraulic presses, forging presses, friction presses, upsetting forging machines and other equipment. When performing multi-angle bending and upsetting of blanks, the method of rotating and positioning based on the previous bending angle is generally adopted. Not only the forging precision is low, but also Low production efficiency and high scrap rate

Taking the forging crankshaft as an example, the latter forging step is to perform angle bending and upsetting based on the previous crankshaft. Since the crankshaft needs to be subjected to multiple multi-angle bending and upsetting, the cumulative error is very large after the last upsetting is completed; And this method will also be deformed due to the natural cooling and shrinkage of the red-hot bar, which greatly affects the bending and upsetting accuracy and yield of the crankshaft

Through literature search, there is no special indexing and positioning device for blanks for upsetting.

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