Spot Welding Operation

This section provides a global understanding of the Spot Welding Operation Management: what it will do, and how it relates to what the product/component does.

A Spot Welding Operation is a Spot welding specific operation that is part of a robot task, and it performs the actual spot welding (weld gun firing).

Either a Servo gun or an Airgun can be used to perform Spot welding. Servo guns are more commonly used.

For Servo guns, the weld gun is an auxiliary device of the robot. The robot controls the weldgun too. This means there is only a robot task that performs both robot motion and weldgun motion (the firing of the weldgun). The Spot welding Operation is responsible for Weldgun motion.

For Air Guns, the robot and the weldgun are two independent devices. This means that the robot task performs only the robot motion. When a Gun motion (gun firing) has to be performed, the weldgun task is executed by the spot welding operation in robot task.

For an Air gun, the spot welding is emulated by simple close gun, weld delay and open gun by the weldgun task.

For a Servo gun, the weldgun motion emulates following motions. Each motion in turn is controlled by set of attributes that are stored in the Spot profile of the controller. Each Spot operation in the robot task will have a link to a Spot profile. Multiple Spot operations can point to a spot profile.

  • Approach Move
  • Pressure Start Move
  • Pressure Move
  • Weld
  • Pressure End Move
  • Backup Move

The Spot profile is used only for servo guns. Since there are no attributes associated to spot welding with air gun, spot profile is of no use in case of air gun.

Spot Operations are created either when a task is created from a Spot weld trajectory using Generate Spot Task in the Spot WeldingSpot Simulation app, or when a spot operation is inserted using Teach command (in the Robot Simulation app).