Punch with groove structure, and micro-drawing device using the same

Abstract

Provided is a micro-drawing device using punch having groove structure. The micro-drawing device includes a first die base assembly, a second die base assembly and a punch. The first die base assembly includes a fixing part; a position of the second die base assembly is corresponding to a position of the first die base assembly, and the second die base assembly includes a die cavity part; and the punch includes a fixing end and a work piece processing end, wherein a position of the work piece processing end is corresponding to a position of the fixing end, the fixing end is used to be disposed at the fixing part, and the work piece processing end faces the die cavity part; wherein, a plurality of grooves is provided at a peripheral surface of the work piece processing end. The present invention also discloses a punch having groove structure.

What is claimed is: 
     
         1 . A punch with groove structure, comprising:
 a main body, wherein a plurality of grooves is provided at a peripheral surface of a work piece processing end of the main body.   
     
     
         2 . The punch with groove structure according to  claim 1 , wherein an interval is disposed between each of the grooves. 
     
     
         3 . The punch with groove structure according to  claim 1 , wherein the plurality of grooves is formed on the peripheral surface in spirally extending. 
     
     
         4 . The punch with groove structure according to  claim 1 , wherein the main body is of a cone-shaped structure. 
     
     
         5 . The punch with groove structure according to  claim 1 , wherein a cross section of the plurality of grooves is a regular shape. 
     
     
         6 . The punch with groove structure according to  claim 5 , wherein the regular shape includes a triangular, rectangular, trapezoidal, semi-elliptical or semi-circular shape. 
     
     
         7 . The punch with groove structure according to  claim 1 , wherein a cross section of the plurality of grooves is an irregular shape. 
     
     
         8 . A micro-drawing device using a punch with groove structure, comprising:
 a first die base assembly including a fixing part;   a second die base assembly, a position of the second die base assembly corresponding to a position of the first die base assembly, and includes a die cavity part; and   a punch, including a fixing end and a work piece processing end, wherein a position of the work piece processing end is corresponding to a position of the fixing end, the fixing end is used to be disposed at the fixing part, and the work piece processing end faces the die cavity part, and a plurality of grooves is provided at a peripheral surface of the work piece processing end.   
     
     
         9 . The micro-drawing device according to  claim 8 , wherein the first die base assembly further includes a plurality of bolt members and a blank holder corresponding to the die cavity part; each of the bolt members is disposed of a flexible member, and the bolt members are sandwiched between the fixing part and the blank holder using the corresponding flexible member. 
     
     
         10 . The micro-drawing device according to  claim 9 , wherein a guide post is further provided between the first die base assembly and the second die base assembly, and the first die base assembly further includes a guide post bushing cover corresponding to the guide post. 
     
     
         11 . The micro-drawing device according to  claim 9 , wherein the fixing part further includes a punch back plate, a punch fixing plate, and a fixing member used to attach the punch back plate to the punch fixing plate; wherein, the fixing end of the punch may be pressed against the punch back plate and positioned at the punch fixing plate. 
     
     
         12 . The micro-drawing device according to  claim 9 , wherein the die cavity part further includes a die cavity back plate and a die cavity provided on the die cavity back plate. 
     
     
         13 . The micro-drawing device according to  claim 8 , wherein an interval is disposed between each of the grooves. 
     
     
         14 . The micro-drawing device according to  claim 8 , wherein the plurality of grooves is formed on the peripheral surface in spirally extending. 
     
     
         15 . The micro-drawing device according to  claim 8 , wherein the punch is a cone-shaped structure. 
     
     
         16 . The micro-drawing device according to  claim 8 , wherein a cross section of the plurality of grooves is a regular shape. 
     
     
         17 . The micro-drawing device according to  claim 16 , wherein the regular shape includes a triangular, rectangular, trapezoidal, semi-elliptical or semi-circular shape. 
     
     
         18 . The micro-drawing device according to  claim 8 , wherein a cross section of the plurality of grooves is an irregular shape.