Abstract: A support surface (3) is bordered on at least two sides by fins while mounted at an opposite corner is a clamping device comprising a slide (6) which can be drawn back from a starting position against the force of a coil spring (9) and which has a clamping plate (10) which has a clamping surface facing the diagonally opposite corner. When a microtitre plate is set down on the support surface (3) by means of a gripper, a lever (12) of the clamping device (5) is pressed down by a gripper arm and the clamping plate (10) is drawn back from a starting position by the action of a thrust surface (15) on the underside of the lever (12) on a sliding projection (11) of the slide (6) and said clamping plate is then moved forwards again to said starting position when the gripper is raised, so that it clamps the microtitre plate against the fins and holds it in a defined position.

Abstract: A support surface (3) is bordered on at least two sides by fins while mounted at an opposite corner is a clamping device comprising a slide (6) which can be drawn back from a starting position against the force of a coil spring (9) and which has a clamping plate (10) which has a clamping surface facing the diagonally opposite corner. When a microtiter plate is set down on the support surface (3) by means of a gripper, a lever (12) of the clamping device (5) is pressed down by a gripper arm and the clamping plate (10) is drawn back from a starting position by the action of a thrust surface (15) on the underside of the lever (12) on a sliding projection (11) of the slide (6) and said clamping plate is then moved forwards again to said starting position when the gripper is raised, so that it clamps the microtiter plate against the fins and holds it in a defined position.