Q&A Frequently Asked Questions

Q.How are parts assembled?

A.

Several examples of assembling many pieces at the same time are given below.

1. Inverting the pieces when they are placed on the final tray:

  1. The final jig is placed on the pallet and inverted.
  2. The parts are transferred to the final jig by removing the pallet.

[Notes]

  1. It takes eight to ten seconds to carry out the above operation.
  2. The pallet and the final pallet are aligned with locate pins.
  3. Once the parts are transferred to the final jig, visual inspection can be performed.

2. Making the final jig and the pallet face in the same direction:

  1. A dummy pallet is placed on the pallet and inverted.
  2. The parts are transferred to the dummy pallet by removing the pallet.
  3. The final pallet is placed on the dummy pallet and inverted.
  4. The parts are transferred to the final pallet by removing the dummy pallet.

[Notes]

  1. It takes 15 to 20 seconds to carry out the above operation.
  2. The pallet and the final jig are aligned with locate pins.
  3. When the parts are transferred to the dummy pallet, visual inspection can be performed.

3. Transferring the parts by means of a suction unit (1):

  1. The pallet is placed on the suction box and the suction power is turned on. (The pallet and the parts are both sucked through the suction holes.)
  2. While sucked, the parts are placed on the final jig.
  3. The parts are transferred to the final jig by turning the suction power off and removing the pallet.

[Notes]

  1. It takes 15 to 20 seconds to carry out the suction transfer operation.
  2. The pallet and the final pallet are aligned with locate pins.
  3. A suction source is necessary separately.

4. Transferring the parts by means of a suction unit (2):

  1. The suction pallet is placed on the pallet and the suction power is turned on. (Only parts are sucked through the suction hole.)
  2. While sucked, the parts are placed on the final jig.
  3. The parts are transferred to the final jig by turning the suction power off and removing the pallet.

[Notes]

  1. It takes 8 to 10 seconds to carry out the suction transfer operation.
  2. The pallet and the final pallet are aligned with locate pins.
  3. A suction source is necessary separately.

5. Using a shutter plate (1):

  1. A shutter plate is placed on a pallet, then the both are inverted and placed on the final jig.
  2. The shutter plate is pulled out.
  3. The parts are transferred to the final jig by removing the pallet.

[Notes]

  1. Generally, the operation time is 8 to 10 seconds when the shutter plate is used.
  2. The pallet and the final pallet are aligned with locate pins.
  3. Thin parts are likely to be caught between the shutter plate and the pallet.

6. Using a shutter plate (2):

  1. A shutter plate is placed on a pallet, then the both are inverted and placed on the final jig.
  2. The shutter plate is shifted by one pitch.
  3. The parts are transferred to the final jig by removing the pallet.

[Notes]

  1. Generally, the operation time is 8 to 10 seconds when the shutter plate is used.
  2. The pallet and the final jig are aligned with locate pins.
  3. Thin parts are likely to be caught between the shutter plate and the pallet.

7. Making horizontally nested parts upright:

  1. The upright guide pallet is placed on the pallet, then the both are inverted and placed on the final jig.
  2. Pins are transferred to the final jig through the upright guide pallet once the pallet is removed.

[Notes]

  1. Generally, the operation time is 8 to 10 seconds when the shutter plate is used.
  2. The pallet, the upright guide pallet and the final pallet are aligned with locate pins.
  3. This method is used to place pins in position in assembly of such components as IC sockets, connectors and PGA packages. Conditions including the number and shape of the pins and the patterns can be changed by simply changing the pallets, leading to total cost reduction.

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