Die for machining thin-walled door-shaped bent part and use method of die

Abstract

The invention provides a die for machining a thin-walled door-shaped bent part. The die comprises an upper template and a lower template, wherein the upper template is provided with a material pressing plate; the material pressing plate is connected with the upper template by a compression spring; an inclined block is arranged outside the material pressing plate; a female die is arranged on the lower template; the female die is slidably connected with the lower template by a first reset device; a cone block is arranged at the top of an ejector and is slidably connected with the female die; the outside of the female die is provided with a slide seat slidably connected with the lower template by a second reset device; the slide seat is fixedly connected with a punch and is slidably connected with the inclined block. The invention also provides a use method of the die. According to the die for machining the thin-walled door-shaped bent part and the use method of the die, the die is compact in structure and convenient to operate, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a mold for processing thin-walled door-shaped bending parts and a use method thereof. Background technique [0002] In the mechanical field, especially in the aerospace field, a large number of thin-walled parts are used, including thin-walled door bends, which include a top surface at an angle of 90° to the top surface The bottom of at least one of the side parts is provided with an inwardly bent bending part at an angle of 90° to the side part. The overall shape of the part is like the word "door", and the wall thickness is generally 0.3-0.8 mm. [0003] Figure 1a is a structural schematic diagram of a thin-walled door-shaped bending part; Figure 1b for Figure 1a Schematic diagram of the A-A section structure in the middle; Figure 1c for Figure 1b The enlarged schematic diagram of the structure in B. see Figure 1a-1c As shown, the thin-walled door-shaped bending part includ...

AI Technical Summary

Problems solved by technology

[0009] One needs to manufacture multiple sets of molds, and the manufacturing cost is high;

[0010] 2. Each set of molds only completes one bending action, that is, the quick-change punch can only bend one angle each time, which is only suitable for single-piece or very small batch processing;

[0011] The position of the three molds is fixed after manufacturing, and the bending position cannot be adjusted

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