摘要:
A method for joining two components is disclosed. In an embodiment of the method, a joining element is inserted into the two components, and during the joining process, at least one parameter quantifying the joining process is determined. The joining element is inserted by a robot and the at least one parameter quantifying the joining process is determined by the robot. A device for joining two components is also disclosed.
摘要:
A method for evaluating installation of blind rivets including measuring the “cycle time” represented “y0”, transmitting sound waves through the blind rivet installed in the structure, measuring the “travel time” represented “x0”, relating “travel time” and “cycle time”, and obtaining a pair of times (x0,y0), providing a time relation pattern establishing a borderline between an area of suitable rivets and an area of unsuitable rivets, the border represented y=f(x), so for cycle time values greater than y=f(x), it is considered a “suitable area”, for cycle time values less than y=f(x), it is considered an “unsuitable area”, representing pair (x0,y0) in the graphic representation and verifying if the value of y0 is greater or less than the value of y=f(x0), classifying installation of the rivet as suitable or unsuitable according to the verification.
摘要:
A method for connecting a first component to at least one second component by at least one joining element which is introduced into the components at a joining point. The joining element is pushed into the components by an industrial robot at a speed of less than five meters per second.
摘要:
A method for setting up a riveter comprising an electrical drive which is configured to place a blind riveting element in a location hole. The riveter applies a tensile force to a tensile element of the blind riveting element during a rivet placement process so that the tensile element tears away from a remainder of the blind riveting element at a predetermined breaking point at an end of the placement process. The tensile force used to place the blind riveting element is defined by an adjustable maximum value which is determined during the setting up. The method includes performing the placement process with the blind riveting element of the type to be used, acquiring a progression of the tensile force during the placement process, determining at least one characteristic value from the progression, and fixing the adjustable maximum value as a function comprising the at least one characteristic value.
摘要:
A blind rivet setting method enables a modified step approach to grip and pull multiple diameters of blind rivet mandrels to fracture, easily feed the remaining spent mandrel portion through a blind rivet tool, and collect and more efficiently dispose of substantially shortened spent mandrel portions when a blind rivet mandrel collection system is utilized.
摘要:
A method for direct screwing, in particular flow hole screwing, includes producing a hole in a first stage in a structural component without cutting and forming a thread with a flow hole screw in a second stage. A feed and feed force are produced by a non-pneumatic feed drive and transmitted to a screw shaft rotated by high feed force and high rotational speed in the first stage and at a defined switchover point with penetration of the structural component a switchover is made to the second stage with lower feed force and slower rotational speed. A drive parameter correlated to the feed force, especially a motor current of an electric motor of the feed drive, is monitored and a characteristic change of this parameter is defined as switchover point. A rapid switchover with process stability is attained and damage to the flow hole screw thread is avoided.
摘要:
A fastener insertion system, for use with an assembly stack-up, includes a fastener and an end effector. The end effector includes a drill bit for drilling a hole through the stack-up, a probe for determining a stack-up parameter, and a fastener feed head for installing the fastener into the hole and applying rotational torque to complete fastener installation. The fastener insertion system also includes a processing device and an angle sensor communicatively coupled to the processing device and to the end effector. The processing device is programmed to measure, with the rotation angle sensor, the angular displacement required to complete fastener installation and to transmit a signal representative of the measured angular displacement from the angle sensor to the processing device. The processing device is also programmed to compare the measurement of angular displacement required to complete fastener installation to a range of angular displacement indicative of correct fastener installation.
摘要:
A method for assembling a structure is described. The method includes locating a position in an assembly stack-up where a one-sided fastener is to be installed, drilling a hole through the assembly stack-up at the position, countersinking the hole to a specified depth, operating a calibrated probe to determine at least parameter associated with one or more of the hole and the stack-up proximate the hole, inserting the one-sided fastener into the hole, applying a rotational torque to the one-sided fastener to complete installation of the one-sided fastener, and comparing a measurement of angular displacement required to complete installation of the one-sided fastener to a range of angular displacement indicative of correct installation of the fastener.
摘要:
A fastener automation system for assembly of fasteners to a substrate, includes a projection system for projecting an image on a substrate of a predetermined location of a correct fastener to be installed in the substrate and data relating to the correct fastener and the substrate, and a computer operably associated with the projection system storing data regarding the correct fastener and the predetermined location on the substrate where the correct fastener is to be installed. An automated method of installing a fastener in a substrate at a predetermined location includes using a projector system to identify a predetermined location for installation of a correct fastener to the substrate, collecting data regarding the correct fastener installation at the predetermined location and storing the data in a computer, and installing the correct fastener in the substrate at the predetermined location based upon the data.
摘要:
A conventional blind rivet tool with modified nose housing, i.e., a rivet gun with replaceable and interchangeable nosepieces, facilitates feeding and setting of multiple diameters of blind rivets with substantially shortened exposed mandrel portions extending beyond the head flange of the rivet, all while maintaining blind rivet performance and reducing total installed blind rivet costs. A rivet with a reduced exposed mandrel protrusion relative to conventional and standardized mandrels can be enabled and more easily fed through the tool.