Metal workpiece indentation marking device

A metal workpiece indentation marking device comprising:

• a frame, a striking head, an automatic marking die, at least one gripper and a two-dimensional moving mechanism capable of moving in two dimensions;
• the top of the striking head is connected to the frame;
• the striking head can move up and down;
• the automatic marking die is fixedly disposed at the bottom of the striking head;
• a clamping jaw for clamping a metal workpiece is disposed at the top of the least one gripper;
• the least one gripper can move back and forth or left and right under the action of the two-dimensional moving mechanism, such that a position to be marked at the top of the metal workpiece can be located under the automatic marking die;
• the automatic marking die comprises a bracket, a charactcr switching mechanism, a core shaft and character disks;
• the two ends of the core shaft are fixedly connected to the bracket;
• the character disks are axially sleeved in parallel on the periphery of the core shaft;
• a plurality of protruding characters are circumferentially distributed on the periphery of each character disk;
• and each character disk can rotate under the action of the character switching mechanism;
• wherein the automatic marking die further comprises an index lock;
• the index lock comprises a spring and a steel ball;
• the core shaft is provided with a circumferential groove at the positions where each character disk is sleeved;
• a plurality of circular pits are circumferentially uniformly distributed in each circumferential groove;
• slots in the same number as the circular pits are radially distributed on an inner annular surface of each character disk;
• each slot is internally provided with the spring and the steel ball;
• the spring is in a compressed state, and can compress the steel ball in the circular pit.