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One-time molding process of multiple fan-shaped plates

A forming process, a technology of fan-shaped plates, applied in the field of one-time forming process of multi-piece fan-shaped plates, can solve the problems of high production cost, large material waste, and material utilization rate of only 78%, so as to save raw materials and production costs low effect

Inactive Publication Date: 2010-06-23
ZHEJIANG HUANGYAN DIE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] like figure 1 As shown: the fan-shaped plate has no bending edge, it is a typical flat plate, and the existing processing method is generally produced by punching and blanking; figure 2 The layout diagram of punching and blanking is shown. After the fan-shaped plate is punched and blanked, all the edges outside the fan-shaped plate will be wasted as leftovers, and the material utilization rate is only 78%. According to this According to this method, every time five fan-shaped plates are punched, waste equivalent to one fan-shaped plate workpiece will be produced. Obviously, the punching and blanking method will result in a large waste of materials and high production costs.

Method used

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  • One-time molding process of multiple fan-shaped plates
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  • One-time molding process of multiple fan-shaped plates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The one-time molding process of multiple fan-shaped plates is completed according to the following steps:

[0025] (1) Make blank 10 according to the size corresponding to the fan-shaped plate with a length of 412 mm and a width of 25 mm and a thickness of 1.2 mm.

[0026] (2) 40 stamping blanks 10 produced in step (1) are aligned and superimposed on each other according to corresponding sides;

[0027] (3) Put the stacked stamping blank 10 into the lower fan-shaped die 30 of the stamping mold from one side of the stamping mold in the direction in which the plate surface of the single stamping blank 10 is upright, and use the stopper 32 and the movable splint 33 Position and clamp the stacked stamping blanks 10 horizontally and vertically;

[0028] (4) Start the punching machine, the upper fan-shaped punch 31 and the lower fan-shaped die 30 of the punching machine are matched with the concentric circles, and the stamping blank 10 is punched into a fan-shaped plate;

...

Embodiment 2

[0033] The one-time molding process of multi-piece fan-shaped boards is basically the same as the one-time molding process of multi-piece fan-shaped boards in Example 1. The difference is that the mold is opened and the mold is held for 1 to 5 seconds after closing the mold, and the mold is taken out. Stamped fan-shaped panels.

[0034] The specifications of the products manufactured by the above-mentioned production process are: the central angle of the fan-shaped plate reinforcement is 60 degrees, the radius of the inner circle is R=400mm, the width of the plate is b=25mm, and the material is aluminum alloy LY12-t1.2;

[0035] The fan-shaped plate produced: no wrinkle, no cracking, the radius rebound is 1-2mm, the outer edge of the fan-shaped plate is thinned by 0.01-0.1mm, and the inner edge is thickened by 0.01-0.12mm, which meets the IT14 precision standard .

[0036] Utilizing the principle of the invention, the upper and lower fan-shaped concave-convex dies are set to ...

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Abstract

The invention belongs to the technical field of molding of fan-shaped plates and relates to a one-time molding process of multiple fan-shaped plates, which is completed according to the following steps: (1) producing rectangular stamping billets according to the corresponding dimensions of the fan-shaped plates; (2) aligning more than two produced stamping billets according to the corresponding sides and mutually overlapping; (3) placing the plate surface of single stamping billet of the stamping billets after overlapping on a lower fan-shaped matrix of a stamping die in the vertical direction, and using a stop block and a movable clamping plate for positioning and clamping the stamping billets after overlapping in both the transverse direction and the longitudinal direction; (4) starting a stamping machine tool, using a sliding block of the stamping machine tool to drive an upper fan-shaped punch and the lower fan-shaped matrix with concentric circles to combine the die, and stamping the stamping billets into the fan-shaped plates; and (5) or keeping the pressure for 1-5 seconds after combining the die, starting the die, and taking out the stamped fan-shaped plates. The one-time molding process has the advantages of saving raw materials, realizing low production cost, leading the produced products to be in line with the IT14 grade precision standard. The one-time molding process is applicable to processing the flat plates to the fan-shaped plates.

Description

technical field [0001] The invention belongs to the technical field of forming fan-shaped boards, in particular to a one-time molding process of multiple fan-shaped boards. Background technique [0002] Such as figure 1 As shown: the fan-shaped plate has no bending edge, it is a typical flat plate, and the existing processing method is generally produced by punching and blanking; figure 2 The layout diagram of punching and blanking is shown. After the fan-shaped plate is punched and blanked, all the edges outside the fan-shaped plate will be wasted as leftovers, and the material utilization rate is only 78%. According to this According to this method, every time five fan-shaped plates are punched, waste equivalent to one fan-shaped plate workpiece will be produced. Obviously, the punching and blanking method will result in a large waste of material and high production costs. Contents of the invention [0003] The object of the present invention is to provide a one-time ...

Claims

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Application Information

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IPC IPC(8): B21D5/01
Inventor 张懃
Owner ZHEJIANG HUANGYAN DIE CO LTD
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