公开(公告)号：US5297413A

公开(公告)日：1994-03-29

申请号：US13580

申请日：1993-02-04

申请人： Thomas A. Schones ,  Peter Torresani

发明人： Thomas A. Schones ,  Peter Torresani

IPC分类号： G11B5/48 ,  G11B33/10 ,  B21D11/10

CPC分类号： G11B5/4806 ,  G11B33/10

摘要： A computer controlled regram machine for adjusting the loads on head gimbal assemblies to bring the loads within a desired specification window defined by upper and lower window specifications. The regram machine includes a load cell for measuring actual gimbal assembly loads, a mechanical bending mechanism for implementing mechanical adjust procedures to increase and decrease the gimbal assembly loads, and a heat source for implementing light adjust procedures to decrease the gimbal assembly loads. The algorithm executed by the machine includes:(a) initiating mechanical adjust procedures in an attempt to increase the gimbal assembly loads to a bend load target if the measured loads are below the specification window, the bend load target being a load greater than the upper window specification and an optimum load from which to initiate light adjust procedures;(b) initiating mechanical adjust procedures in an attempt to decrease the gimbal assembly loads to the bend load target if the measured loads are greater than a light adjust threshold, the light adjust threshold being a load greater than the bend load target and characterizing the upper limit of load changes that are to be implemented by light adjust procedures;(c) initiating light adjust procedures in an attempt to decrease the gimbal assembly loads to the specification window if the measured loads are above the specification window but less than or equal to the light adjust threshold; and(d) repeating steps (a)-(c) until the measured loads of the gimbal assemblies are within the specification window.

摘要翻译： 一种用于调整头部万向节组件上的负载的计算机控制的重写机，以使负载在由上限和下限窗口规格定义的所需规格窗口内。 该regram机器包括用于测量实际万向节组件负载的测力传感器，用于实现机械调节程序以增加和减少万向节组件负载的机械弯曲机构，以及用于实现光调节程序以减少万向节组件负载的热源。 由机器执行的算法包括：（a）启动机械调整程序，以试图将万向节组件负载增加到弯曲负载目标，如果测量的负载低于规范窗口，则弯曲负载目标是大于上限 窗口规格和启动光调节程序的最佳负载; （b）启动机械调整程序，以便如果所测量的载荷大于光调节阈值，光调节阈值是大于弯曲载荷目标的载荷，并表征上部 通过光调整程序实施的负载变化限制; （c）如果测量的载荷高于规格窗口但小于或等于光调节阈值，则启动光调节程序以试图将万向节组件负载减小到规格窗口; 和（d）重复步骤（a） - （c），直到万向节组件的测量负载在规范窗口内。