Vertical demoulding method of multidirectional die forging hydraulic press

A technology of multi-directional die forging and vertical parting, applied in the field of multi-directional forging, can solve the problems of increasing the tonnage of equipment, reducing the quality of forgings, affecting the forming of forgings, etc., and achieves the effects of convenient mold opening, low manufacturing cost, and reduced energy consumption.

Inactive Publication Date: 2015-08-19
SUZHOU DONGSHENG FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the choice of clamping force is also very important. When the clamping force is too large, the tonnage of the equipment needs to be increased, resulting in adverse economic consequences; and when the clamping force is less than the required value, cracking will occur during the die forging process. Die phenomenon, resulting in flashing of forgings, affecting the forming of forgings and reducing the quality of forgings

Method used

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  • Vertical demoulding method of multidirectional die forging hydraulic press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a vertical mold splitting method for a multi-directional die forging hydraulic press, which includes the following steps:

[0019] (1) The horizontal push rod 10 respectively pushes the left mold cover 14 and the right mold cover 16 inwards to realize the mold closing of the left mold 13 and the right mold 15, and put the blank into the mold cavity;

[0020] (2) The vertical push rods 7 at the upper and lower ends push the mold clamping ring 12 to engage with the protrusions of the left mold sleeve 14 and the right mold sleeve 16 respectively, and press and fix the left mold sleeve 14 and the right mold sleeve 16;

[0021] (3) The vertical piercing rod 8 goes down to the predetermined position, and then stops, and the main cylinder pressure head 6 of the multi-directional die forging press goes down to the set stroke, and is in a pressure-holding state after completion;

[0022] (4) The horizontal piercing rod 3 is pressed inward at the same time to comple...

Embodiment 2

[0025] Embodiment 2: The method of this embodiment is basically the same as that of Embodiment 1, except that the protruding portion and the inner wall of the clamping ring 4 are wedge-shaped to cooperate with each other.

Embodiment 3

[0026] Embodiment 3: The method of this embodiment is basically the same as that of Embodiment 1, except that a hydraulic cylinder is used to act on the vertical push rod 7 to push the clamping ring.

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Abstract

The invention relates to a vertical demoulding method of a multidirectional die forging hydraulic press. Protruding portions of a left mould sleeve and a right mould sleeve and the inner side wall of a mould locking ring cooperate with each other and are wedge-shaped. By adopting the vertical demoulding method, a demoulding face can be reliably closed during forging, a mould closing force dose not needed to be taken into account when the hydraulic press works, the energy consumption can be greatly reduced, and a mould can be conveniently opened after forging. A mould locking device is simple in structure, easy to implement and low in manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of multidirectional forging, in particular to a vertical mold splitting method for a multidirectional forging hydraulic press. Background technique [0002] The traditional methods of manufacturing valve bodies mostly use casting, welding, die forging hammer die forging, hydraulic press extrusion die forging, etc. These technologies have certain limitations and defects. For example: the mechanical properties of castings are low; the products manufactured by die forging hammer die forging process have a certain influence on the overall mechanical properties due to insufficient deformation of the core, and the material utilization rate is low; the vertical hydraulic press forming process can forge the inner hole of the valve, but For the three-way valve body with flange, it cannot be formed at the same time, and the efficiency is not high. Multi-directional die forging can improve the plasticity of metals and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02
Inventor 不公告发明人
Owner SUZHOU DONGSHENG FORGING
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