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Robotic cell for transferring overmold metal inserts and inserting post-molding plastic clips


This robotic cell was developed with the purpose of applying over-mould metal parts and for the post-moulding plastic clips application. Quality control is ensured by an artificial vision station.

Robotic cell layout:


Positioning station for metallic parts performed with EOAT and allocation to a mould using a robot.


Detection station for the presence or absence of the metalic insert on the molded part.


Clipping station with linear motion for clips feeding and robotics for handling.


Artificial vision station.

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Automation process details and functionalities:  

Pre-molding operations:


[1] Positioning station for metallic parts performed with EOAT and allocation to a mould using a robot.

A linear motion feeder equipped with a feeder ramp [A] moves the inserts to a pin for fixing and positioning [B]. The EOAT composed of 8 magnetic fixing pins collects the pieces [C].

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The EOAT is responsible for transferring the metallic inserts to the mould, 4 inserts are transfered on the sides of the mold. For this, the EOAT was designed with the following features:

[D] Magnetic Pins to allock 8 inserts;

[E] Equipped with two suspension tables to compensate mould adjustments;

[E] 2 linear tables for motion, each table composed of 4 magnetic pins [D], responsible for allocation the 8 inserts on the sides of the mould;

[F] 4 interlocks for centering and magnetic allocation to the mould.


Post moulding operations:

[G] The Cartesian robot collects the 4 moulded parts from the mould and moves them to the inserts detection table[2] verifying their presence;

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[G] The Cartesian robot deposits plastic parts into a positioning jig [H];

[K2] The KUKA robot handles 2 parts at once and moves them into clipping station [3];

[3] The clipping station with a linear movement collects the clip with suction cup and delivers into clipping zone for clip application [J].

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[K2] The KUKA robot transfer 2 plastic parts into the artificial vision station [I] for inspection:

  • Correct inserts application;

  • Correct clips application;

  • Detection of anomalous geometries: deformations, open geometries and contour integrity;

  • Detection of remaining flash;

  • Diameter measuring.

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