D-serie level 1 EN - 第102页

C&P6/12 Placement Heads Placement Procedure Completing Board Placement S tuden t Guide Advanced Level 1 SIPLACE D-Series C&P6/12 Placement Heads EN 05/2007 6-22 6.2.19 Completing Board Placement  The SIPLACE pla…

C&P6/12 Placement Heads

Placing Component 12 Placement Procedure

Student Guide Advanced Level 1 SIPLACE D-Series

EN 05/2007 C&P6/12 Placement Heads

6-21

6.2.16 Placing Component 12

6.2.17 Pickup and Placement Cycle For the Next Components

 After all the components of the first head cycle have been placed on the board, the gantry axes move

the placement head to the pickup position of the next pickup cycle.

 The next pickup cycle is performed for components 13 - 24 (7 - 12 for C&P6).

 The subsequent pickup cycles follow the same procedure. If necessary the machine performs repair

cycles.

6.2.18 Segment with a "Defect Component"

If the optical centering of a component (ident. error) or the pre-placement vacuum check (alternatively,

component recognition before placement) fails, the component will not be placed and will remain on the

nozzle.

 The turning station still rotates this nozzle into the pickup angle for the new component, if this

segment is in the rotary position.

If this segment is in the pickup position:

 The reject procedure is activated and

 The X/Y gantry axes move to the reject position for that gantry,

 The star rotates the segment into the reject position,

 The component is rejected with an air blast,

 The new component is taken up.

The rejected component is then placed during a repair cycle, performed after all the set placement cycles

for this placement head have been completed.

6-26: Placing component 12

Star position 330°

 Vision system: optical centering of component

6 on other gantry

 DP station rotation of nozzle 4 into the pickup

angle for the next placement cycle.

 Pickup/placement station: Place component

 Component sensor option: during the next star

step, the nozzle length is measured at

segment 2.

C&P6/12 Placement Heads

Placement Procedure Completing Board Placement

Student Guide Advanced Level 1 SIPLACE D-Series

C&P6/12 Placement Heads EN 05/2007

6-22

6.2.19 Completing Board Placement

 The SIPLACE placement station activates the conveyor system and moves the board into the output

conveyor.

 Finally, the SIPLACE placement station reports the number of components consumed (placed and

rejected) to the line control computer (LC) SIPLACE Pro.

 The OIS (Operator Information System) compiles the placement statistics which relate to the data

set at the station, the programed panels or the last reset time. This data is used for optimizing the

process.

 The machine is now ready for the next board.

6.2.20 Detailed Rotation of DP Station 1. Swivel In

6.2.21 Positioning into Pickup Angle

6-27: Detailed rotation of DP station, 1. Swivel in

 Diagram 1 shows the initial position (state after

reference run).

 From the initial position, the stepping motor

rotates by 90° for swivel-in.

 The DP station swivels in and contacts the

sleeve (incremental disk).

 The stepping motor is monitored by the light

barrier on the cam disk.

 Diagram 2 shows the status after swiveling in.

 This is the start command for the DP axis

drive.

6-28: Detailed rotation of DP station, positioning into pickup angle

 The DP axis positions the segment to the

relevant zero pulse and checks the signal level

at a distance of 3 digits.

 An end position signal is emitted if the actual

position deviation is within the permitted

tolerance.

 There is no difference between the 0° and

180° or 90° and 90° pickup angle.

C&P6/12 Placement Heads

Positioning into Placement Angle Placement Procedure

Student Guide Advanced Level 1 SIPLACE D-Series

EN 05/2007 C&P6/12 Placement Heads

6-23

6.2.22 Positioning into Placement Angle

6.2.23 Detailed rotation of DP station, 3. Swivel Out

6-29: Detailed rotation process at DP station, positioning into placement

angle

 When positioning begins, the actual position of

the axis is set to 0 by setting the position

counter of the DP axis to 0.

 The DP drive is operated in relative positioning

mode.

 The DP axis starts to move towards the target

position which is calculated from the station

calibration values, the line computer

programming values and the centering values

of the placement procedure.

 An end position signal is emitted as soon as

the actual position deviation is within the

permitted tolerance.

6-30: Detailed rotation of DP station, 3. Swivel out

 The command to start swiveling out is the end

position signal from DP positioning.

 The DP drive is still located at the sleeve.

 Diagram 1 shows the status when swiveled in.

 The stepping motor is controlled by the light

barrier on the cam disk.

 From its swiveled-in status, the stepping motor

rotates by 90° in a counterclockwise direction,

to swivel out.

 Diagram 2 shows the status when swiveled

out.