Support pin for supporting a substrate in a placement area of a placement machine and placement machine
The invention relates to a support pin ( 10 ) for supporting a substrate ( 80 ) in a placement area of a placement machine ( 100 ) and a placement machine ( 100 ) with at least one placement head ( 101 ), a magazine ( 104 ) with a plurality of such support pins ( 10 ) and a placement board ( 103 ).
1. A support pin for supporting a substrate in a placement area of a placement machine, wherein the support pin has an upper segment designed to support the substrate and to releasably receive the support pin via a placement head of the placement machine, a lower segment having at least one permanent magnet for magnetically coupling with a placement board in the placement area, a central segment extending between the upper segment and the lower segment, and a fluid channel extending within the upper segment, the central segment and the lower segment along a Z-axis of the support pin, wherein the lower segment has bellows within which the fluid channel extends and to which the at least one permanent magnet is connected in such a way that the at least one permanent magnet can be moved along the Z-axis between a coupling position and a non-coupling position by generating and interrupting negative pressure in the fluid channel by means of the bellows, wherein the at least one permanent magnet is magnetically couplable with the placement board in the coupling position and is not magnetically couplable with the placement board in the non-coupling position when the support pin is provided on the placement board.
2. The support pin according to claim 1 , wherein the bellows are secured in the lower segment such that the bellows compress when transitioning from the coupling position to the non-coupling position and expand when transitioning from the non-coupling position to the coupling position.
3. The support pin according to claim 1 , wherein the fluid channel is enclosed in a vacuum-tight manner by the bellows.
4. The support pin according to claim 1 , wherein the at least one permanent magnet is attached to an end of the bellows close to an underside of the lower segment.
5. The support pin according to claim 1 , wherein the at least one permanent magnet is fastened to the bellows in a materially bonded and/or form-fitting manner.
6. The support pin according to claim 1 , wherein at least one ventilation hole is formed in a base of the lower segment.
7. A placement machine having at least one placement head, a magazine with a plurality of support pins according to claim 1 and a placement board, wherein the at least one placement head is movable between the magazine and the placement board, and wherein the at least one placement head is designed to remove the support pins from the magazine and configure them on the placement board.