A blank-holding structure of a punching and flanging die for an oil cover of a loader
A flanging die and flanging technology, applied in the field of blank holder structure, can solve the problems of lack of blank holder force, wrinkling of the flanging part of the workpiece, affecting the appearance and quality, etc., so as to improve the quality and solve the wrinkling effect.
Inactive Publication Date: 2016-03-02
WUXI YAQING MACHINERY
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Problems solved by technology
[0002] In industries such as metal plate cold processing, the requirements for the appearance and surface quality of each workpiece are continuously improved. The punching and flanging dies that are often used at present, in the flanging process, due to the different shapes of the workpiece and the lack of pressure during flanging Edge force, the workpiece is always in a relatively free state, which often leads to wrinkles on the flange part of the workpiece, and even if the wrinkles are smoothed, the traces cannot be eliminated, which greatly affects the overall appearance and quality
Method used
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[0008] Such as figure 1 Shown, the present invention comprises comprising patrix 1, counterdie 2, patrix 1 bottom is fixed with flanging die 3, and flanging die 3 bottom is provided with flanging punch 4 corresponding to lower die 2, flanging die 3 The screw 11 is fastened to the fixed plate 5, the fixed plate 5 is fixed to the backing plate 6, and the punching block 7 is arranged above the die 3, the backing plate 6 is provided with a push plate 8, and the punching block 7 passes through the spring structure Connected with the push plate 8; the spring structure includes a rod 9 and a compression spring 10, the lower part of the rod body of the rod 9 is fitted with a compression spring 10, the upper end of the rod 9 is fixed on the push plate 8, and the lower end of the rod 9 is connected with the compression spring 20 The 7 upper parts of the punching block are connected.
[0009] When working, the upper die 1 goes down, and the punching block 7 presses the workpiece togethe...
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The invention provides a side pressing structure of an oil cover punching flanging mould of a loader, and the structure is simple, can effectively overcome the phenomenon that the flanging part of a work piece is wrinkled during a flanging process, and ensures attractive appearance and quality; the side pressing structure of the oil cover punching flanging mould of the loader comprises an upper mould and a lower mould; a flanging concave mould is fixedly arranged at the lower part of the upper module; the lower part of the flanging concave mould is provided with a flanging convex mould corresponding to the lower mould; the flanging concave mould is fastened with a fixed plate through a screw; the fixed plate is fixed with a backing plate; a piece knocking block is matched above the flanging concave module; a push plate is arranged on the backing plate; and the piece knocking block is connected with the push plate through a spring structure.
Description
technical field [0001] The invention relates to a punching and flanging die, in particular to a blanking structure of a punching and flanging die for a loader oil cover. Background technique [0002] In industries such as metal plate cold processing, the requirements for the appearance and surface quality of each workpiece are continuously improved. The punching and flanging dies that are often used at present, in the flanging process, due to the different shapes of the workpiece and the lack of pressure during flanging Edge force, the workpiece is always in a relatively free state, which often leads to wrinkles on the flange part of the workpiece, and even if the wrinkles are smoothed, the traces cannot be eliminated, which greatly affects the overall appearance and quality. Contents of the invention [0003] In view of the above problems, the present invention provides a blanking structure of a loader oil cover punching and flanging die, which has a simple structure and ...
Claims
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IPC IPC(8): B21D37/12B21D43/00
Inventor 黄漪
Owner WUXI YAQING MACHINERY