Distortion correcting method and device for plane body
A technology of deforming position and plane, which is applied to the structural parts of the record carrier, the casing/shield of the recording head, semiconductor/solid-state device manufacturing, etc.
Inactive Publication Date: 2006-03-22
MINEBEA CO LTD
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Problems solved by technology
[0003] However, the demand for HDDs is now significantly increasing, and there is a further demand to supply HDDs in a cheaper manner, so that the use of manual correction of deformation becomes an obstacle to meeting these requirements
In addition, it is difficult to secure skilled workers
Method used
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Embodiment Construction
[0033] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
[0034] figure 1 A deformation correction device for a planar body according to an embodiment of the present invention is schematically shown. as in figure 2 As shown in an enlarged manner in , as its main parts, this deformation correction device 2 includes a fixed point support device 3 for the substrate 1, a transfer device 4 for the substrate 1, a contact element 5 with a plurality of The measuring device 6, the straightening device 9 with the straightening pin 7 and the pressurizing pin 8 and a computing device (not shown). The device further includes a not-shown operation panel.
[0035]The fixed point support device 3 for the substrate 1 adopts, for example, a plate clamp, a clamping device provided on the platen of the deformation correction device 2, etc., and the support device supports the fixed point of the substrate 1 so that the postur...
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The present invention provides a method to efficiently manufacture a plane body of a high precision by efficiently straightening the plane body. By comparing a plane suitable for straightening (hereunder, expressed as straitening objective plane) a plane section 1a or an outer peripheral part 1b, etc., of a base plate 1 with a reference plane, a strain quantity at a prescribed position of the base plate is deduced. Based on the strain value, dies for straightening are constituted of straightening pins 7 for respective base plates. Against the die for straightening, the base plate 1 is pressed by the pressing pin 8 with prescribed force, required plastic deformation is generated to a required section of the straightening objective plane. Straightening is conducted to a whole of the straightening objective plane all at once, a straightening work is completed in a fixed time regardless of a difference in an area of a plane section, a straightening position, and a straightening quantity of respective works.
Description
technical field [0001] The present invention relates to methods and apparatus for effectively and operable correction of deformations of planar bodies. Background technique [0002] Figure 5 A substrate 1 of a hard disk drive (HDD) is shown. When the base plate 1 is manufactured by die-cast molding, deformation may occur in the base plate 1 during cooling and solidification of molten metal of aluminum, zinc or the like. Furthermore, before assembling the individual parts into the base plate 1, it is important to remove deformations in the base plate 1 in order to improve the accuracy of subsequent operations and the precision of the finished molding. For this reason, deformations on the plane portion 1a, the outer peripheral portion 1b, etc. of the die-cast molded substrate 1 are manually corrected by a skilled worker using a plastic hammer, thereby providing a substrate with high precision. [0003] Now, however, the demand for HDDs has significantly increased, and there...
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IPC IPC(8): B21D1/06B21D3/10G11B33/00H01L21/304G11B5/10
Inventor 古越良英
Owner MINEBEA CO LTD