Blocking extrusion forming die

A technology of forming molds and occlusive extrusion, applied in the field of metal pressure processing, to achieve the effects of good versatility, good economic benefits, and reduced manufacturing costs

Inactive Publication Date: 2012-09-12
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims at the technical problems existing in the existing occluded extrusion molding dies, and provides

Method used

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  • Blocking extrusion forming die
  • Blocking extrusion forming die

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[0013] Attached below figure 1 The present invention is further described.

[0014] Upper punch 3 and lower punch 17 are fixed on upper die base 1 and lower die base 18 with screws and pins by upper fixing plate 4, lower punch guide limit plate 14 and backing plate 15. The upper floating mold base 7 and the lower floating mold base 12 are respectively supported by the upper floating formwork elastic element 5 and the lower floating formwork elastic element 13, and are guided by the inner guide column. Upper die core 8, lower die core 11 are installed on upper floating die base 7, lower floating die base 12 by upper die core cover 9, lower die core cover 10, fixed by pressing plate. The swing bar lock hook 23 is symmetrically installed on the lower floating mold base 12 through a living hinge, and realizes swinging and mold locking by the action of the lock hook support spring 19 during the up and down movement of the floating mold base. In the mold-locked state, a closed mol...

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Abstract

The invention discloses a blocking extrusion forming die, belonging to the field of metal pressure processing technology. The die mainly consists of three parts: a rigid die frame, a floating forming die core and a die locking device, wherein the die frame provides support, fixing and guide effects to the die core; and upper and lower floating concave die modules are automatically locked under the effect of a locking hook device to form a closed cavity. When an upper die holder moves downward, the upper and lower punches move bidirectionally to extrude the bar stock to realize blocking formation of the part. The blocking extrusion forming die provided by the invention easily realizes blocking formation, reduces the requirement for the tonnage of equipment, improves the material forming performance and material utilization rate, and lowers the manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of metal pressure processing, and in particular relates to a closed extrusion forming die. Background technique [0002] At present, the main molds for producing parts by occlusion extrusion forming method are as follows: [0003] 1. Block extrusion die driven by double-action press. This method needs to adopt special equipment, and the equipment investment is large, and the manufacturing cost is high. [0004] 2. Convex and concave dies are independently hydraulically driven closed extrusion dies. The hydraulic drive system needs to be configured independently, and the structure of the device is complex. [0005] 3. Nitrogen spring, disc spring and other elastic elements lock the extrusion die of the die. The closing pressure of this mold is small, and its use is limited. Contents of the invention [0006] The invention aims at the technical problems existing in the existing occluded extrusion formin...

Claims

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Application Information

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IPC IPC(8): B21C25/02
Inventor 郑光文白凤梅
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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