00195941-03-UM SiplaceCA-EN - 第475页

User Manual SIPLACE CA 7 Station Enlargements Edition 08/2011 EN 7.11 Compo nent Sensor for the C&P12 Head 475 7.1 1 Component Sensor for the C&P12 Head [001 18021-xx]Component sensor for the 12 seg ment C&P …

7 Station Enlargements User Manual SIPLACE CA

7.10 Magnetic Pin Support Edition 08/2011 EN

474

7.10 Magnetic Pin Support

[00119680-xx]Magnetic pin supports HS/HF/X/CA/D series

Wide boards tend to deflect during placement such that, under certain circumstances, the compo-

nents can no longer be placed with the desired accuracy. Highly curved PCBs also affect the

placement accuracy. This problem can be easily rectified by fitting magnetic pin supports on the

lifting table.

Fig. 7.10 - 1 Magnetic pin support

User Manual SIPLACE CA 7 Station Enlargements

Edition 08/2011 EN 7.11 Component Sensor for the C&P12 Head

475

7.11 Component Sensor for the C&P12 Head

[00118021-xx]Component sensor for the 12 segment C&P head

Fig. 7.11 - 1 12 segment Collect&Place CA head with component sensor

(1) 12 Segment Collect&Place CA Head

(2) Component sensor

7 Station Enlargements User Manual SIPLACE CA

7.11 Component Sensor for the C&P12 Head Edition 08/2011 EN

476

7.11.1 Description of the Functions of the Component Sensor

The component sensor is fixed to the underside of the 12 segment Collect&Place CA head hous-

ing (see fig. 7.11 - 1

). It scans the outline of a component and checks whether there is a compo-

nent at the nozzle. It also determines the height of the component. This data can be used to

determine whether the component is in the normal position or on edge at the nozzle. Component

heights from 0.1 to 4 mm can be checked. For larger components, only the presence of the com-

ponent at the nozzle is checked.

The component sensor is configured in the package form editor on the SIPLACE Pro computer.

Every nozzle, including the special nozzles, can be scanned by the component sensor.

7.11.2 Measurement Conditions

The two following conditions must be fulfilled in order to obtain a valid measurement:

– The light beam must touch the empty nozzle tip during the calibration process.

– The nozzle tip must be inside the light beam when it is holding a component.

– Minimum nozzle length 13 mm

– Nozzle length + component height + tolerance < 17 mm

If these conditions are fulfilled, it is possible to determine whether a component is present or ab-

sent, or to measure the component height. The minimum difference in height is 100 µm.

Fig. 7.11 - 2 Component sensor, working principle

Incremental disk

Component

Nozzle

IR LED PhototransistorCross-section through

component sensor