Processing mould for specially-shaped workpieces

Abstract

The invention relates to a processing mould for specially-shaped workpieces. The processing mould comprises an upper mould, a lower mould and a guide post between the upper mould and the lower mould,wherein a plurality of processing positions are sequentially arranged between the lower mould and the upper mould in a transmission direction of a metal belt; each processing position is equipped witha corresponding stamping assembly; one stamping assembly comprises a central part and an outer ring part which surrounds the central part and has a horizontal section in the shape of a circular notch; the middle part of the central part is vertically equipped with a main processing hole; the end surface, towards the upper mould, of the central part is gradually downwards bent in the shape of an arc in a direction away from the processing hole; the lower mould is equipped with a deformed hole adaptive to the shape of the outer ring part around the outer ring part; a deformed stripping cavity for allowing the lower mould to vertically lift and a stripping return part for upwards returning the outer ring part are arranged on positions, below the outer ring part, of the lower mould; the uppermould is equipped with a first processing base; the first processing base is equipped with a bending hole and a hole processing block; and the periphery of the first processing base is adaptive to the inner periphery of the deformed hole in shape. With the adoption of the technical scheme, the invention provides the processing mould for specially-shaped workpieces, and the processing mould can reduce stations, improves precision and reduces processing cost.

Description

technical field [0001] The invention relates to a mold, in particular to a mold for processing special-shaped workpieces. Background technique [0002] Molds are various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. [0003] Such as figure 1 As shown, this kind of special-shaped workpiece includes a disc-shaped main body 4, the edge of the main body 4 is provided with a rectangular gap 41, the middle part of the main body 4 is provided with a central hole 42 and a central cylinder 43 surrounding the central hole 42, and the main body 4 surrounds the central cylinder 43 There is a circular bending groove 44, the main body is also provided with two circular side cylinders 45, a rectangular hole 46 and rectangular bending, and the mold for processing this kind of special-shaped workpiece is a stamping die, during processing, Coo...

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Problems solved by technology

[0003] like figure 1 As shown, this kind of special-shaped workpiece includes a disc-shaped main body 4, the edge of the main body 4 is provided with a rectangular gap 41, the middle part of the main body 4 is provided with a central hole 42 and a central cylinder 43 surrounding the central hole 42, and the main body 4 surrounds the central cylinder 43 There is a circular bending groove 44, the main body is also provided with two circular side cylinders 45, a rectangular hole 46 and rectangular bending, and the mold for processing this kind of special-shaped workpiece is a stamping die, during processing, Cooperate to unroll the coiled metal strip first, and then transmit the metal strip between the lower die and the lower die through the transmission mechanism. The traditional stamping method requires nearly ten stations to process the special-shaped workpiece sequentially, or several stamping dies It is processed sequentially. On the one hand, the single mold multi-station processing method increases the volume and length of the mold, increases the processing cost and space occupied by the mold, and the traditional positioning method uses the accurate transmission of the transmission mechanism to make the workpiece reach the specified processing. location, but the transmission accuracy of the transmission mechanism will decrease after a long time of use, and too many stations will also cause a gradual decrease in accuracy. In order to reduce the number of stations and the processing cost of the mold, but the number of factors affecting the accuracy of the workpiece after multiple disassembly and assembly processing has greatly increased, resulting in a significant decrease in accuracy

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