Elliptical hole punching die for numerical control press and elliptical hole punching method

Elliptical hole punching die for numerical control press and elliptical hole punching method

The invention discloses an elliptical hole punching die for a numerical control press. The elliptical hole punching die comprises multiple lower dies and punches used in cooperation with the lower dies. Each lower die is provided with a punching hole comprising arc sections. When the arc sections of...

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Hauptverfasser: ZHOU GUOQING, ZHAO YI, FU YAN, WANG HAIBIN, YANG ZAIYOU, WAN HAIHUI, HUANG QICUN
Format: Patent
Sprache:chi ; eng
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MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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creator ZHOU GUOQING
ZHAO YI
FU YAN
WANG HAIBIN
YANG ZAIYOU
WAN HAIHUI
HUANG QICUN
description The invention discloses an elliptical hole punching die for a numerical control press. The elliptical hole punching die comprises multiple lower dies and punches used in cooperation with the lower dies. Each lower die is provided with a punching hole comprising arc sections. When the arc sections of the multiple lower dies are jointed, edge line of an elliptical hole is formed. The elliptical hole punching die enables a large elliptical hole to be punched in a sectioned mode, and finally the complete elliptical hole can be formed. Due to the fact that the complete elliptical hole can be formed right after the arc sections of the multiple lower dies are jointed, the elliptical hole punched through the elliptical hole punching die do not have lapping defects, the edge line of the elliptical hole is smooth, and production in subsequent processes is benefited; meanwhile, the elliptical hole punching die can also effectively reduce punching times and improve the punching efficiency of the elliptical hole. The inve
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The elliptical hole punching die comprises multiple lower dies and punches used in cooperation with the lower dies. Each lower die is provided with a punching hole comprising arc sections. When the arc sections of the multiple lower dies are jointed, edge line of an elliptical hole is formed. The elliptical hole punching die enables a large elliptical hole to be punched in a sectioned mode, and finally the complete elliptical hole can be formed. Due to the fact that the complete elliptical hole can be formed right after the arc sections of the multiple lower dies are jointed, the elliptical hole punched through the elliptical hole punching die do not have lapping defects, the edge line of the elliptical hole is smooth, and production in subsequent processes is benefited; meanwhile, the elliptical hole punching die can also effectively reduce punching times and improve the punching efficiency of the elliptical hole. 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subjects MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
title Elliptical hole punching die for numerical control press and elliptical hole punching method
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