Sheet material curved surface forming stamping die

Abstract

The invention relates to the technical field of curved surface forming dies, in particular to a sheet material curved surface forming stamping die which comprises a convex die (1) and a concave die (2), wherein the convex die (1) is positioned above the concave die (2); the stamping surfaces of the convex die (1) and the concave die (2) are curved surfaces with radians and are engaged with each other; a groove (3) is formed in the concave die (2) in the transverse direction; the thickness of the convex die (1) is smaller than the width of the groove (3); the concave die (2) is fixed; and the convex die (1) moves in the longitudinal direction and is as wide as the concave die (2). Compared with the prior art, the sheet material curved surface forming stamping die is novel and simple in structure and reasonable in design, can simplify the machining complexity of a curved surface sheet material, realizes curved deformation of the sheet material by controlling the longitudinal movement range, is matched with the multi-pass incremental forming method to finally finish high-precision workpiece machining, and greatly reduces the production cost.

Description

[technical field] [0001] The invention relates to the technical field of curved surface forming processing dies, in particular to a sheet metal curved surface forming stamping die. [Background technique] [0002] At present, for the processing of curved sheet metal workpieces, the traditional method is to use a linear punch and a linear concave stamping die for forming, and then use the subsequent process to assist the processing to achieve the forming of the target workpiece. This production method is inefficient, and the quality of the bent plate cannot be guaranteed. At present, the multi-point forming method is mostly used, which is characterized in that multiple punches arranged in a certain order are adjusted up and down to construct the curved surface shape of the plate product, and the plate product is completed by moving up and down. molding. However, this method is only suitable for small batches and cannot be mass-produced, and the production cost is too high and...

AI Technical Summary

Problems solved by technology

This production method is inefficient, and the quality of the bent plate cannot be guaranteed. At present, the multi-point forming method is mostly used, which is characterized in that multiple punches arranged in a certain order are adjusted up and down to construct the curved surface shape of the plate product, and the plate product is completed by moving up and down. molding

However, this method is only suitable for small batches and cannot be mass-produced, and the production cost is too high and the processing is relatively complicated, which cannot meet the strategic needs of sustainable development of manufacturing industries such as automobiles, aircraft, and ships.

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