A feedback control system for use with ultrasonic welding. A weld energy set point and/or a reference power curve are used by a controller to provide a power supply voltage set point and a power supply frequency set point for the power that is to be drawn by an ultrasonic weld generator. Information regarding the actual voltage and/or frequency of the drawn electrical power, and/or the frequency and magnitude of an ultrasonic wave transmitted from the generator to an applicator tool used to weld an object can be utilized by an estimator to estimate the weld energy dissipated at the weld site and/or generate a power curve for the welding operation. Using information from the estimator, the controller can determine adjustments for variables for the current and/or future welding operations. Further, welding may not commence until a clamping force exerted on the object satisfies a clamping force set point.

Provided is a wire harness sheet that can be stored in an overlapping manner without using release paper and can be wound in a spiral shape around an electric wire bundle. A wire harness sheet 11 includes a first self-adhesive layer 15 of a sheet base material 13, the first self-adhesive layer 15 being is formed on one surface of a first common region 27, and the other surface of the first common region 27 becoming a first adhesive layer unformed portion 29; and a second self-adhesive layer 17 that is formed on at least part of one surface of a second common region 31.

Provided is a wire harness binding apparatus that is capable of automating and speeding up the work of binding a plurality of wires with a binding material by successively binding the wires with the binding material, and that forms a wire harness capable of suppressing a decrease in the binding force that binds the wires. The apparatus includes a wire rod supply unit for supplying a wire rod near an object to be bound, and a ring shape forming unit for forming a ring-shaped part by curving a portion of the wire rod supplied from the wire rod supply unit. The ring shape forming unit successively forms a plurality of ring-shaped parts with the wire rod supplied from the wire rod supply unit, arranges the plurality of ring-shaped parts along the longitudinal direction of the object to be bound, and forms a binding material by connecting adjacent ring-shaped parts along the longitudinal direction of the object to be bound.

A wiring harness assembly cell includes an automation zone housing a robot for performing automated assembly operations on a series of wiring harness assembly boards. A plurality of wiring harness assembly stations is located about the automation zone, each including one or more wiring harness assembly boards holding the wiring harnesses. Manual operator zones are located outside the automation zone that are associated with the wiring harness assembly stations. The wiring harness assembly stations are reconfigurable between a first configuration in which a first wiring harness assembly board faces the manual operator zone such that it is accessible to a manual operator, and a second configuration in which it faces the automation zone such that it is accessible to the robot. The robot is moved within the automation zone between a plurality of assembly locations where it accesses and operates on the respectively the plurality of wiring harness assembly stations.