| 摘要 |
The invention relates to production unit ( 1 ), in particular a bending press ( 2 ), for forming workpieces ( 3 ) of sheet metal, having two press beams ( 15, 16 ) which are displaceable relative to one another by means of a drive mechanism ( 53 ) and can be used to obtain a required tool length ( 42 ) by fitting a variable number of bending tools ( 36, 37 ). To enable them to be identified and/or their positions detected on an at least partially automated basis, the inserted bending tools ( 35, 37 ) have unmistakable codes in the form of electronically detectable information carriers ( 43 ). To this end, an electronic detection device ( 44 ) for detecting a plurality of information carriers ( 43 ) connected to a control device ( 46 ) or a control and/or evaluation device ( 47 ) connected to it co-operates with the first and/or second press beam ( 15; 16 ), and at least one displacement and/or guide mechanism ( 45 ) is provided which extends essentially parallel with the achievable tool length ( 42 ) and accommodates the detection device ( 44 ). The codes or data and/or detection signals of a plurality of information carriers ( 43 ) can be detected in sequence during a relative displacement of the detection device ( 44 ) along the displacement and/or guide mechanism ( 45 ) and can be transmitted to the control device ( 46 ) or the control and/or evaluation device ( 47 ) co-operating with it.
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