Machine Vision Solutions

Projects

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  • Projects

    Below you can find a selection of out finished projects.

    Would you like more information about a specific project?
    Can we help you in finding the right solution?

    Let us know via our contact page and we will be glad to help you in exploring the possibilities.

    Inline surface check
    Assembly control
    Checking injection moulding parts
    OCR on steel coils
    Check seal
    Check preform
    Check metal punch
    Identification and quality check plastics caps

    Inline surface check

    For a automatic stacking and palletising unit at a sawing station for insulating plating, we were asked to design an automated quality control. We opted for two Cognex high resolution In-Sight cameras. The cameras check the bottom side of the plating before these are cut to size. Custom-made lighting makes the faults in the plating visible for the cameras.

    With an encoder the location of a fault is calculated and sent to the sawing station 10 metres further down the production line. The faulty part will then be cut out so that only plating of good quality is sent through to the stacking and palletising unit.

    After finishing this product the customer no longer receive complaint about visible faults on the plating.

    Assembly control

    At an assembly line of plastic parts a quality check was needed to check the way the parts were assembled without limiting the moving space for the operator. With three high resolution Cognex camera positioned one metre above the assembly line the operator does not experience hindrance.

    A specially designed infrared light source ensures that the colour of the products don’t influence the images taken by the cameras. To visualize the process we used the Cognex Vision View software. This flexible interface allows the user to teach the cameras to recognize faulty products and easily adjust the error margin that is accepted. This enables a fast and easy switch between the type of product that is assembled.

    Checking injection moulding parts

    This project involves the development of a entire inspection unit that can be attached directly to the moulding machine. The parts are transported via conveyer belt to the inspection unit and by using two vibration feeders the parts are divided into two tracks.

    Three Cognex cameras with telecentric optics and lights check the parts from all angles. The rejected parts are removed from the belt and the rest is packed into cardboard boxes. De machines operates with a capacity 5 parts per second for a period of 6 hours. With a custom designed interface the operator can easily set the machine and switch between the 4 different products that are processed.

    OCR on steel coils

    Directly after the hot-rolling of steel coils a robot applies a code. The diameters of de coils vary between 500 to 2200 mm. For the next step in the process the coils are retrieved from an outside storage and placed on the production line. At two different timed in the process the code on the coils is checked.

    1. When entering the outside storage where sunlight influence the environment, work goes on 24/7.
    2. Inside the production hall with a more constant light source.

    Because of the varying lighting conditions a special light source was developed for two high resolution cameras that trace and read the code on the coils. De cameras communicate the data through PROFINET to a PLC.

    Check seal

    At a production line a plastic cap is manufactured consisting of two injection moulding parts. The flexible seal contains an UV trackers that can be seen using special UV lighting. We were asked to create a solution to check this seal. A robot, moving 800mm per second, grabs 48 caps at a time and positions them before the camera and the UV lighting. A special filter enables the camera to create an image only showing the seal. This way defaults are made clearly visible. For each of the 48 grabbers statistics are recorded and the images of rejected caps are stored in a database.

    Check preform

    At a assembly line of double-walled performs two checks have to be performed. Firstly the presence, thickness, height and the position of the glue has to be checked. Secondly the pattern of the applied liquid has to be checked on presence, density and height. Both checks have to be performed while the product is rotating.

    Two different cameras each performing one of the two checks operate on different wavelengths of light and filter. This way the two measurements do not influence one another.

    Check metal punch

    This project involved a check of punched materials that is directly attached to the punching machine in a challenging environment with vibrations and oil vapour. A high resolution camera checks the geometry of the punched products to reveal defaults as a result of the wear and tear of the tools.

    The measurement is performed with a accuracy of one-hundredth of a mm at a speed of four punches per second. Measurement results are automatically stored in batches.

    Identification and quality check plastics caps

    From different injection moulding machines plastics caps come to a machine that inserts a inlay. Then the caps, divided into batches, pass two cameras. The camera check with the special marking the origin of the product to sort them into different boxes. Also the correct placement of the inlay is checked.

    The system operates with two high speed cameras with special RGB lighting that van easily be changed depending on the type of cap that is processed. The inspection is performed at the speed of 10 caps per second.

    Businesspark Het Broek
    Van Dijklaan 15A
    5581 WG Waalre
    Tel. +31 (0)40 8200900 info@amvsbv.eu

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