Method for manufacturing deep-groove U-shaped iron for loudhailer

Abstract

The invention relates to a method for manufacturing a deep-groove U-shaped iron for a loudhailer, which is characterized by comprising the following steps: 1, calculating the weight of a finished product according to the size of the product and intercepting bar steel materials with equal weight; 2, performing forging for the first time, i.e. forging and pressing the intercepted bar steels to proper size; 3, performing the forging for the second time, i.e. providing two sections of different diameters in a die cavity of an adopted die and forging one end of a processed member into a straight cylinder part with a smaller diameter; 4, performing the forging for the third time, i.e. forging the other end of the processed member into a chassis with a larger size by using a special die, and arranging a groove on the chassis; and 5, stretching and shaping the processed member by using a stretching die and stretching the processed member into a setting size of the U-shaped iron with the deep groove to obtain the finished product. By the process, the invention can effectively solve the problems of waste excess materials, material management expenses, and the like, and greatly reduce the cost. Because of the short manufacture time, the invention can realize mass production with beautiful finished product and easy control for the precision, and improve the quality and the competitiveness of the product.

Description

1. Technical field [0001] The invention relates to a method for manufacturing a deep-groove U-iron for loudspeakers. 2. Background technology [0002] At present, the manufacturing method of the deep-groove U-iron for loudspeakers mostly adopts the traditional method of mechanical cutting and lathe processing or the method of punching steel plate. Among them, the mechanical cutting processing method: the straight column part of the deep groove type U iron brings great difficulty to the turning process, especially for the relatively tall straight column, the deep groove part is narrower, which requires a special lathe and special tools to realize , the turning process is costly and inefficient, and some materials are wasted, making mass production difficult. In addition, some U irons are punched from flat steel plates, and the processing of the products is completed by using the stretching process in about four main processes of the punch press. However, when purchasing mate...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the disadvantages of the above-mentioned deep-groove U iron car, such as the difficulty in processing and the low utilization rate of the iron and steel sheet punching method, the present invention provides a deep groove for loudspeakers that uses the forging process to fully utilize the material, low processing cost, and smooth surface of the finished product. Manufacturing method of type U iron

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