Punching assistant device

Abstract

Disclosed is a punching assistant device. The punching assistant device includes: a first shaft arranged perpendicular to a working surface; a second shaft perpendicularly coupled to the first shaft; and a grinder mounting member coupled to the second shaft, wherein the grinder mounting member is rotatable around the first shaft.

1 . A punching assistant device comprising:
 a first shaft arranged perpendicular to a working surface;   a second shaft perpendicularly coupled to the first shaft; and   a grinder mounting member coupled to the second shaft,   wherein the grinder mounting member is rotatable around the first shaft.   
     
     
         2 . The punching assistant device as claimed in  claim 1 , wherein the grinder mounting member includes
 a first opening opened toward the working surface, and   a second opening which communicates with the first opening and into which a grinder is insertable.   
     
     
         3 . The punching assistant device as claimed in  claim 2 , wherein the grinder mounting member includes
 a receiving portion coupled to the second shaft, and including a receiving space that includes the first opening and the second opening, and   a cover portion detachably coupled to the receiving portion and covering a part of the second opening.   
     
     
         4 . The punching assistant device as claimed in  claim 3 , wherein the receiving portion includes a work supporting surface coming into contact with the working surface. 
     
     
         5 . The punching assistant device as claimed in  claim 3 , wherein the receiving portion includes a dust discharge port communicating with the receiving space. 
     
     
         6 . The punching assistant device as claimed in  claim 3 , wherein the receiving portion includes a coupling hole into which the second shaft is inserted and coupled. 
     
     
         7 . The punching assistant device as claimed in  claim 1 , further comprising a connection member which is rotatably connected to one end of the first shaft and to which one end of the second shaft is connected. 
     
     
         8 . The punching assistant device as claimed in  claim 7 , wherein the connection member includes
 a first portion rotatably connected to the one end of the first shaft,   a hinge shaft coupled to the first portion, and   a second portion which is pivotably coupled to the hinge shaft and to which the one end of the second shaft is connected.   
     
     
         9 . The punching assistant device as claimed in  claim 1 , wherein at least one of the first shaft or the second shaft has a multistage structure in which a length is changeable. 
     
     
         10 . The punching assistant device as claimed in  claim 1 , further comprising a first fixing member coupled to one end of the first shaft and coming into contact with the working surface. 
     
     
         11 . The punching assistant device as claimed in  claim 10 , wherein the first fixing member includes a fixing pin penetrating through the working surface. 
     
     
         12 . The punching assistant device as claimed in  claim 11 , wherein the first fixing member includes a first supporting surface on which the fixing pin is arranged and which has a diameter larger than a diameter of the one end of the first shaft. 
     
     
         13 . The punching assistant device as claimed in  claim 1 , further comprising a second fixing member coupled to the other end of the first shaft that is opposite to one end of the first shaft, and including a second supporting surface with a diameter larger than a diameter of the other end of the first shaft. 
     
     
         14 . The punching assistant device as claimed in  claim 3 , wherein the receiving portion includes at least one supporting portion protruding toward the receiving space. 
     
     
         15 . A punching assistant device comprising:
 a first shaft arranged perpendicular to a working surface;   a second shaft perpendicularly coupled to the first shaft;   a grinder mounting member coupled to the second shaft; and   a connection member which is rotatably connected to one end of the first shaft and to which one end of the second shaft is connected,   wherein the grinder mounting member is attachable and detachable to and from a grinder, and   the grinder mounting member includes   an opening opened toward the working surface, and   a work supporting surface configured to come into contact with the working surface.