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The most-robotic production machines include:

  • CNC machining centers,

  • press brakes,

  • forging presses and hammers,

  • injection molding machines,

  • measuring and inspection machines,

  • welding sockets.

Robotic Head Solutions

In robotic loading and unloading of production machines, many types of working heads are used.
When choosing the type of head, the process dynamics, detail characteristics, limitations and requirements of the machining machine are taken into account.

Among the most commonly used head are used:

 

  • Heads mechanical two or three finger-

  • Heads mechanical gripper dedicated,

  • Heads pneumatic vacuum,

  • Magnetic heads controlled stepping

  • Heads electromagnetic adjustable holding power,

  • Loading systems discus machining across the mounting fixtures detail

  • Systems for large-size details built from a set of grippers placed on supporting structures.

Signal Exchange with the machine

Depending on the complexity of the process and the type and age of the machine whose loading we automate, various options for exchanging signals with an industrial robot are available.
The basic way of exchanging signals between machines is the binary interface. Individual 24VDC physical signals are exchanged using a set of relays or optoisolators mounted in both machines. This arrangement is used in simple processes where the amount of information is small and the speed of information exchange is low. Such communication can be used e.g. in loading the clamping spindle on the CNC machine or unloading the injection molding machine.

In processes where the number of exchanged signals exceeds a dozen or so basic signals or it is necessary to keep up with the movement of the tool, e.g. synchronization, network communication interfaces are used. These can be interfaces based on industrial networks or dedicated communication adapters of a given machine manufacturer. Such communication will allow for synchronous cooperation of the robot, e.g. with a press brake or measuring machine, while the robot follows its head constantly. Communication options are often limited by the age of the machines or the possibilities of tampering with the original software of the machine manufacturer. When buying new machines, it is worth paying attention to the availability of communication interfaces in the machine, in particular their integration with the robot.

We can automate the processes of loading and unloading parts on a wide spectrum of production machines. In particular, CNC machining centers, forging presses, press brakes as well as testing and inspection machines for details are subjected to automation and robotization.When handling details using an industrial robot, we have the possibility of direct work with much larger masses or dimensions of the details. In addition, we get a much higher dynamics of movement than when working with a balancer or an auxiliary hoist.Loading and unloading of parts from machines, support for CNC machining sockets, and reorientation of parts during the machining process are just the basic advantages of automating machine operation. The efficiency of the machining socket, with the feeding of details with an industrial robot, allows to increase the process efficiency by up to 50%, especially when using the appropriate hardware or additional software on the machining machine.

Universal CNC Loading System

The universal part loading system for a CNC machine can be connected to any machine by providing a loading station and combining signal exchange with a CNC controller. Such a system consists of:

 

  • 2 or 3 loading pallets for parts,

  • 6-axis industrial robot selected with range and load capacity for parts and machine,

  • universal 2 or 3-finger gripper, or optionally a dedicated gripper,

  • safety fence with a safety system that meets the highest safety category PLe,

  • drip pan for coolant residue.

Optional equipment includes:

  • security scanner instead of fence elements,

  • detail vision detection and control system,

  • detail positioner / measuring station,

  • chip blowing / removal system,

  • dedicated HMI touch panel for station operation.