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Forming device and method of complex inner wall and outer wall cylindrical part

A wall tube, complex technology, applied in the direction of molding tools, other household appliances, household appliances, etc., can solve the problems of affecting production efficiency, difficult demoulding, etc., to achieve the effect of convenient demoulding process, less loss of raw materials, and convenient operation

Active Publication Date: 2018-11-02
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the extrusion forming method, for such complex-shaped cylindrical parts, it generally requires multiple processes to complete, which seriously affects the production efficiency; even if the one-time forming method is used, it is also faced with problems such as difficult demoulding after forming.

Method used

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  • Forming device and method of complex inner wall and outer wall cylindrical part
  • Forming device and method of complex inner wall and outer wall cylindrical part
  • Forming device and method of complex inner wall and outer wall cylindrical part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The formed part is a cylindrical part with spiral ribs on the inner and outer walls, such as Figure 6 shown. select as figure 2 The cylindrical piece shown is used as the forming blank; the shape of the outer wall of the cylindrical piece is formed by a four-petal die with a spiral shape inside, and the shape of the four-petal die is as follows Figure 7 As shown; the shape of the inner wall of the cylindrical part is formed by selecting the inner and outer valve molds with a spiral shape outside, and the shape of the inner and outer valve molds is as follows Figure 8 shown.

[0036] Step 1, the multi-lobe die set on the die fixing plate realizes synchronous mold clamping movement under the control of the die drive cylinder; the inner mandrel moves vertically upwards through the drive of the inner mandrel ejection cylinder until the inner mandrel The ejector cylinder is in contact with the inner cavity surfaces of the four inner valve molds, and by utilizing the c...

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Abstract

The invention discloses a forming device and method of a complex inner wall and outer wall cylindrical part. The forming device comprises a concave die separation mechanism, an inner and outer sectiondie separation mechanism and a cylindrical convex die mechanism. The concave die separation mechanism is composed of a multi-section concave die and concave die drive cylinders. The multi-section concave die is of a two-section or four-section vertical symmetric structure, a hydraulic cylinder is used for controlling so that automatic die combining and separation can be achieved, a die cavity inthe shape of the outer wall of the part is arranged in the multi-section concave die. The inner and outer section die separation mechanism is mainly composed of the hydraulic cylinder, inner and outercore shafts and inner and outer section dies, the outer edges of the inner and outer section dies coincide after die separation, and a mold chamber in the shape of the inner wall of the part is formed. The cylindrical convex die moves vertically through the drive cylinder to achieve one-time forming of the cylindrical part in the complex shape. According to the forming device and method, the problems existing to the manufacturing processes of traditional extrusion forming, casting, welding and the like when the part in the complex shape is formed are effectively solved, material consumption is low, cost is saved, and the forming device and method are suitable for large-batch production.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to a device for forming components with complex shapes on the inner and outer walls of a cylinder. Background technique [0002] Cylindrical parts are widely used in industrial production. The plastic processing technology of cylindrical parts has the advantages of low energy consumption, material saving and high efficiency, and has become an important means of cylindrical part processing. With the development of production and science and technology, many industrial sectors, especially national defense, aerospace, electronics and other industries require the shape and structure of products to be more and more complex, and the requirements for product performance are getting higher and higher. Using simple mechanical processing methods to process parts with complex shapes has high surface precision, but there are many production processes, low efficiency, serious waste of materials, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D51/10
CPCB21D37/10B21D51/10
Inventor 赵军黄学颖王春鸽张致远于高潮王浩然李慕禹陈雪婵穆振凯
Owner YANSHAN UNIV
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