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Female die hydro-drawing device

A technology of hydraulic deep drawing and concave die, which is applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of many defective products, low work efficiency, uneven wall thickness of parts, etc., and achieve uniform wall thickness and tensile strength Effects of increased strength and reduced thinning

Pending Publication Date: 2018-08-31
JIANGSU GAIZHIBAO PACKAGING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the relative movement between the upper die and the lower die, the workpiece to be drawn is stretched on the lower die and press-formed between the two dies, but in the prior art, the wall of the part after deep drawing Uneven thickness, many defective products, low work efficiency

Method used

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  • Female die hydro-drawing device

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Embodiment

[0023] The rubber layer 4 with a thickness of 12mm to 15mm is fixed on the blank holder 5 below the lower cylinder 2, the sheet material 8 is stuck in the blank holder 5, and the upper cylinder 1 and the lower cylinder 2 are filled with hydraulic oil. When the punch When the seat 9 is upward, it drives the punch 7 to move upward, and the sheet material 8 is pushed into the blank holder 5 by the punch 7. After the sheet material 8 contacts the rubber layer 4, the oil pressure in the lower oil cylinder 2 rises, and the pressure in the lower oil cylinder 2 increases. The hydraulic oil tightly wraps the sheet material 8 on the punch 7. At this time, the sheet material 8 gradually deforms. When the oil pressure of the lower cylinder 2 reaches the limit value, the hydraulic oil is discharged from the overflow valve 3 into the upper cylinder 1 to maintain The oil pressure in the lower oil cylinder 2 is a constant value. When the punch 7 reaches the limited stroke, the sheet 8 is pulle...

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Abstract

The invention discloses a female die hydro-drawing device comprising a female die, a convex die and an edge pressing ring, and the edge pressing ring is located between the female die and the convex die. By means of the device, the forming accuracy of parts is improved, the wall thickness of the drawn parts is uniform, the thinning rate is lowered, and harmful friction force is lowered.

Description

technical field [0001] The invention relates to the field of dies, in particular to a die hydraulic deep drawing device. Background technique [0002] The hydraulic deep drawing forming method is a very practical forming technology with broad application prospects. In recent years, the world's processing industry has developed in the direction of flexibility, material diversification, product precision, process design intelligence, and production process automation. Product production is increasingly requiring small batches and multiple varieties, and the cycle of product replacement is increasingly shortened. . The products produced by the hydraulic deep drawing process have good quality, high precision, and fast mold ring shape. They are suitable for the production of multi-variety, small batches and complex special-shaped parts, and are also in line with the characteristics of modern production. The development of new methods and structures of hydraulic deep drawing is ...

Claims

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Application Information

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IPC IPC(8): B21D22/10B21D22/22B21D37/01
CPCB21D22/10B21D22/22B21D37/01
Inventor 罗平潘霞
Owner JIANGSU GAIZHIBAO PACKAGING TECH CO LTD
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