Automatic device for setting rivets

Abstract

The device for setting rivets is characterized by a robot having a robot arm on which a setting device is held that comprises a supply unit connected to a reservoir of rivets, a feed unit for a respectively selected rivet, and a setting unit for the respective rivet. The device carries out an automatic mounting process with high efficiency and precision and sets the rivets fully automatically.

1 . A device for setting rivets, comprising
 a robot having a robot arm on which a setting device is held that comprises a supply unit connected to a reservoir of rivets, a feed unit for a respectively selected rivet, and a setting unit for the respective rivet.   
     
     
         2 . The device according to  claim 1 , wherein the supply unit is permanently fastened to the robot. 
     
     
         3 . The device according to  claim 1 , wherein the feed unit and the setting unit are combined to form a subassembly that is held on the robot to be rapidly exchangeable. 
     
     
         4 . The device according to  claim 1 , wherein the supply unit comprises a plurality of feed hoses having a joint connection for a feed hose of the feed unit and a source of compressed air. 
     
     
         5 . The device according to  claim 1 , wherein the feed unit comprises a sensor. 
     
     
         6 . The device according to  claim 4 , wherein the end of the hose has arranged thereon a brake means that is capable of blocking the exit of the rivet-conveying compressed air. 
     
     
         7 . The device according to  claim 6 , wherein an oppositely directed air stream can enter through a compressed-air line into the end of the feed hose. 
     
     
         8 . The device according to  claim 1 , wherein the feed unit comprises gripper jaws and return gripper jaws for a rivet that are connected to a movable slide. 
     
     
         9 . The device according to  claim 1 , wherein the feed unit comprises a waste box with a hose through which rejected rivets and the tear-off attachments of the set rivets are blown with compressed air. 
     
     
         10 . The device according to  claim 1 , wherein the setting unit comprises
 a reversing motor with torque sensor,   a rivet fastening element in drive communication with the motor via a free run that is unblocked in a first direction and blocked in a second direction,   a rivet holding element for non-rotationally holding a rivet, said element communicating with the motor via a free run that is blocked in the first direction and unblocked in the second direction,   wherein the two elements can be pushed back against spring force into the setting unit, and   an air channel connected to a vacuum source, which terminates in an accommodating gap of the rivet fastening element.