| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool for easily determining an axial misalignment of a die with respect to a rivet shaft in an automatic hole punching type rivet fastener. SOLUTION: The tool 30 for determining the axial misalignment, is provided with a shaft part 31 for inserting in a die receiving hole 11 of a supporting frame 2, and a cylinder part 33 extended from the shaft part. In the cylinder part 33, a shaft directional hole 35 for receiving a punch 9 is formed so that axial alignment of the punch and the die supported in the die receiving hole is attained. The shaft directional hole 35 of the cylinder part 33 is supported with the supporting frame so as to be opposite to the punch by inserting the shaft part 31 into the receiving hole 11, and the height protruded from the supporting frame is almost the same height of the die protruded from the supporting frame. If the punch 9 is inserted into the shaft directional hole 35, it can be determined that axial misalignment of the die is within an acceptable range. COPYRIGHT: (C)2005,JPO&NCIPI |
