| 摘要 |
In this method, magnetic studs housed in a plate are connected to magnetic flux measuring circuits, which define measuring zones, and to power circuits that make it possible to magnetize or demagnetize the studs. The method comprises prior steps that consist in determining (100) at least two treatment zones each defined by at least one measuring zone and defining (102) a surface of the clamping plate in contact with the part to be clamped, as well as following steps consisting, for each treatment zone, in identifying (103) one or more magnetic studs included in a surface of the clamping plate in contact with the part to be clamped, measuring (105) the magnetic flux produced by the stud or studs identified previously, calculating (106) an actual magnetic clamping force based on the measurement of the preceding step and on the identification made previously, calculating (108) a theoretical magnetic force thanks to this identification.;The magnetic clamping device, comprises means intended to implement a method such as described hereinabove and a clamping plate that comprises at least two measuring circuits arranged one on top of the other, in relation to a plan perpendicular to the weight of the part to be clamped. |
| 主权项 |
1. Method for controlling the magnetic clamping of a part (31) in a magnetic clamping device (2) of an industrial installation (1) comprising, a unit (23) for controlling the magnetic clamping, a clamping plate (21) whereon is positioned the part to be clamped (31), several magnetic studs (5) housed in this plate (21), with the studs being connected to magnetic flux measuring circuits (51a, 51b, 51c, 51d) defining measuring zones (A, B, C, D) and to power circuits making it possible to magnetise or demagnetise the studs (5),characterised in that the method comprises prior steps consisting in:
a) determining (100) at least two treatment zones (Za, Zb, Zc, Zd) each defined by at least one measuring zone (A, B, C, D) b) defining (102) a surface (S) of the clamping plate (21) in contact with the part to be clamped (31) andin that the method comprises for each treatment zone (Za, Zb, Zc, Zd), steps consisting in:
c) identifying (103) one or more magnetic studs (5a, 5b, 5c, 5d) included in the surface (S) of the clamping plate (21) in contact with the part to be clamped (31), d) measuring (105) the magnetic flux produced by the stud or studs (5a, 5b, 5c, 5d) identified in step c) e) calculating (106) an actual magnetic clamping force (Ea, Eb, Ec, Ed) based on the measurement of the step d), on the definition of the surface (S) in contact carried out in the step b) and on the identification of the studs (5a, 5b, 5c, 5d) carried out in the step c), f) calculating (108) a theoretical magnetic force (E′a, E′b, E′c, E′d) thanks to the definition of the surface (S) in contact carried out in the step b) and the identification of the studs (5a, 5b, 5c, 5d) carried out in the step c). |
