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    41.
    发明专利
    未知

    公开(公告)号：DE60034177T2

    公开(公告)日：2007-12-20

    申请号：DE60034177

    申请日：2000-06-16

    Applicant: ATLAS COPCO TOOLS AB

    Inventor： HANSSON GUNNAR CHRISTER

    IPC: B25B23/14 ,  B23P19/06

    Abstract: A method for determining the optimum control parameter values for a screw joint tightening process carried out by a power wrench which is controlled by a programmable control system utilising the determined parameter values, comprising the steps of providing the control system with screw joint characteristic parameter values and operation parameter values characteristic for the actually used power wrench, simulating mathematically the tightening process by using the screw joint and power wrench characteristic parameter values as well as pre-chosen operation control parameter values, and evaluating the result of the simulated tightening process in view of predetermined evaluation criteria, thereby determining the suitable operation control parameter values to used during production tightening of the actual type of screw joint.

    49.
    发明专利
    未知

    公开(公告)号：SE0302623D0

    公开(公告)日：2003-10-03

    申请号：SE0302623

    申请日：2003-10-03

    Applicant: ATLAS COPCO TOOLS AB

    Inventor： BRODIN HANS KARL JOHAN ,  HANSSON GUNNAR CHRISTER

    IPC: B25F5/00 ,  B25H5/00 ,  F16C35/063 ,  F16C35/067 ,  F16H55/20 ,  F16H57/022 ,  B25F

    Abstract: A power tool comprises a housing (10;110) with an output shaft (11;111) driven by a rotation motor and an angle drive (12;112) connecting the output shaft (11;111) to the motor, wherein the angle drive (12;112) comprises a drive spindle (15;115) connected to the motor and carrying a pinion (15;115), and a bevel gear (17;117) secured to the output shaft (11;111). The drive spindle (15;115) and the pinion (16:116) are supported in the housing (10;110) via a ball type thrust bearing (24;124) having in one of its embodiments an inner ring (31) with a thread for cooperation with a threaded portion (33) on the drive spindle (15), and an outer ring (26;126) which is rigidly secured in the housing (10). The inner ring (31) is adjustable and lockable relative to the drive spindle, (15) by an annular lock element (35). In an alternative embodiment the inner ring (131) is secured to the drive spindle (115), whereas the outer ring (126) is threaded into a threaded portion of housing (110) such that the outer ring (126), the drive spindle (115) and the pinion (116) are adjustable relative to the housing (110) and the bevel gear (117). A deformable lock element (135) the outer ring (126) in set position.

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