Tri-axial bending load testing jig

A tri-axial bending load testing jig, comprising:

• a die comprising a first and a second supporting axes which upholds opposite sides of a board material, the first and the second supporting axes are movable so that an interval therebetween can be adjusted according to a size of the board material;
• a punch mounted at an upper part of the die movable in a vertical direction to press down a center portion of the board material and having a supporting member and a pressing member connected to the supporting member by a pin to adjust a tilt;
• a punch setting unit formed in the center of the die to set the center and parallelism of the punch with respect to the first and the second supporting axes and having a punch groove for receiving the punch at the center portion of the die;
• and
• a material positioning unit guiding a position of the board material to be put on the first and the second supporting axes, according to the size of the board material.

A tri-axial bending load testing jig, comprising:

• a die comprising a first and a second supporting axes for upholding opposite sides of a board material;
• a punch mounted at an upper part of the die movable in a vertical direction to press down a center portion of the board material;
• and
• a punch setting member provided on the first and the second supporting axes to set the center and parallelism of the punch with respect to the first and the second supporting axes and having a pair of supporting grooves for insertion of the first and the second supporting axes at a lower part thereof and a punch groove for receiving the punch at the upper center portion thereof and parallel with the supporting axes.