Numerical control stamping die

Abstract

The invention belongs to the field of die manufacturing, and particularly relates to a numerical control stamping die, which comprises a multi-stage hydraulic cylinder, an air storage bag, an upper die and a lower die, wherein the top of the air storage bag is embedded into the top of a numerical control punching machine; the multi-stage hydraulic cylinder is fixedly connected to the upper surface of the air storage bag and penetrates through the air storage bag; two round holes are arranged at the top of the air storage bag; an atomizing nozzle is arranged in each round hole; the atomizing nozzles are connected with a waterway of a numerical control press; the side wall of the air storage bag is made of flexible rubber; eight one-way air valves are arranged on the side wall of the air storage bag; an upper die base is fixedly connected to the bottom of the air storage bag; the upper die is fixedly connected with a piston rod of the multi-stage hydraulic cylinder; and an injection pipeline is arranged at the bottom of the air storage bag and penetrates through the bottom of the air storage bag and the upper die. Gas and liquid are mixed, and meanwhile, the flow speed of the mixture is increased through pressurization, so that the effect of improving the cooling effect is achieved.

Description

technical field [0001] The invention belongs to the field of mold manufacturing, and in particular relates to a numerically controlled stamping mold. Background technique [0002] CNC punching machine can be used for processing various types of metal sheet parts, and can automatically complete a variety of complex hole types and shallow stretch forming processing at one time, (automatically process holes of different sizes and hole distances according to requirements, and small punches can also be used in one step. The punching method punches large round holes, square holes, waist-shaped holes and various shapes of curved contours, and can also be processed by special processes, such as shutters, shallow stretching, sinking holes, flanging holes, reinforcing ribs, embossing, etc.) . Through simple mold combination, compared with traditional stamping, it saves a lot of mold costs, can process small batches and diversified products with low cost and short cycle time, and has ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a numerically controlled stamping die. The specific problem to be solved by the present invention is that the existing stamping dies of punch presses usually do not have a punch cooling device, and are cooled by an external fan or water spray. The cooling effect is general and cannot be effectively solved. The hot condition of the punch head reduces the processing quality to a certain extent and reduces the life of the punch head

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