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Application 5 of 8

Assembly and screwdriving Straight down at every hole

The robot moves down to each hole, drives the fastener to torque, and moves on. Torque and angle are logged for every bolt, so a missed one is caught on the spot.

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Title
Assembly and screwdriving · Process path plate
Drawing no.
HG-DWG-205
Scale
NTS
Unit
mm
Assembly and screwdriving process path plate: the tool path traced many times over (straight down at every hole). The open circle marks the start, the filled dot the end.

Process sequence

One path, five steps.

Scroll down and each step lights up in copper on the plate.

Title
Assembly and screwdriving · Sequence, plan view
Drawing no.
HG-DWG-215
Scale
NTS
Unit
mm
Assembly and screwdriving sequence, plan view: the same cell seen from above. The numbers match the steps.

  1. 1. Clamp

    The fixture clamps the part as it arrives on the conveyor.

  2. 2. Feed

    A feeder delivers bolts to the tool tip one at a time.

  3. 3. Find the hole

    A camera confirms the hole position and the tool lines up.

  4. 4. Drive

    The tool drives to the set torque and angle, and the values are logged.

  5. 5. Verify

    Records and images for every bolt are checked before the part moves on.

Design points

Designing the cell: three things first.

  1. 1. The arm takes the reaction

    The fastening reaction goes straight into the arm. Choose payload and joint size from the tool’s maximum torque.

  2. 2. Sequence is quality

    Tightening in a cross pattern keeps the part from warping. The sequence follows your fastening standard.

  3. 3. Records tied to serial numbers

    Torque and angle for every bolt are stored against the product serial number. If an issue surfaces later, you can pull that unit’s record right away.

Recommended robots

Our first pick for this job.

Products

The biggest risk in fastening is one missed bolt. People miss them when they tire, while a robot visits every hole in the programmed order. If the torque or angle from the nutrunner falls out of range, that bolt is flagged at once.

Heavy nutrunners call for the HG-C16-10 cobot. Its heavier joints take the fastening reaction, and a camera on the same wrist lets the cell check its own work.

For electronics with many small screws, use the HG-S10-70 SCARA. Its 300 mm Z stroke reaches the floor of deep housings.

  • Collaborative robots

    HG-C16-10

    16 kg and 1,000 mm: a cobot for heavy tools in screwdriving and tending

    Payload
    16kg
    35 lb
    Reach
    1,000mm
    39.4 in
    Repeatability
    ±0.05mm

  • SCARA

    HG-S10-70

    A 700 mm SCARA for up to 10 kg, built for heavier assembly and screwdriving

    Payload (rated)
    5kg
    11 lb · max 10 kg
    Arm length
    700mm
    27.6 in
    XY repeatability
    ±0.015mm

  • Collaborative robots

    HG-C10-13

    Our flagship cobot: 10 kg and 1,300 mm, from machine tending to welding

    Payload
    10kg
    22 lb
    Reach
    1,300mm
    51.2 in
    Repeatability
    ±0.03mm

Other models that fit

Cases

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Send drawings. We draw the path.

Share part drawings or a video of the current process. An application engineer will work through the cell layout and cycle time with you.

Quote for HG-C16-10Cases for this process
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