Metal working – Plural diverse manufacturing apparatus including means for... – With means to feed work intermittently from one tool station...
Reexamination Certificate
1999-06-30
2001-07-10
Briggs, William (Department: 3722)
Metal working
Plural diverse manufacturing apparatus including means for...
With means to feed work intermittently from one tool station...
C029S03300H, C029S03800E, C029S564000
Reexamination Certificate
active
06256861
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a hard diskdrive read/write arm fabrication system, and more particularly to an automatic hard diskdrive read/write arm fabrication system which achieves high hard diskdrive read/write arm fabrication efficiency, and saves hard diskdrive read/write arm manufacturing cost.
Following fast development of high technology, a variety of computer-controlled implement have been developed, and intensively used in the fabrication of a variety of products. For example, CNC (computer numerical control) automatic cutting machines have been used in the fabrication of hard diskdrive read/write arms. However, conventional methods of using CNC automatic cutting machines for the fabrication of hard diskdrive read/write arms still have drawbacks as outlined hereinafter.
1. Fabrication efficiency cannot be greatly improved:
Because processing a blank material block into a finished read/write arm includes more than 20 processing steps, it is low efficient to let the workpiece receive all processing steps that are not continuously performed.
2. Fabrication procedure cannot be automatically achieved:
Because one CNC cutting machine has at least two molds for carrying a number of workpieces each, it takes much time to put workpieces in each mold.
3. Manufacturing cost is high:
Because conventional methods cannot use CNC cutting machines to form a fully automatic fabrication line, much works must be performed by man labor, thereby causing the manufacturing cost unable to be greatly reduced.
4. Product quality is unstable:
Because much main labor is used during fabrication of read/write arms, main error is inevitable, processed workpieces tend to be damaged, or differently processed workpieces tend to be mixed together when delivered by labor from one processing station to another.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide an automatic hard diskdrive read/write arm fabrication system which eliminates the aforesaid drawbacks. It is one object of the present invention to provide an automatic hard diskdrive read/write arm fabrication system which achieves high hard diskdrive read/write arm fabrication efficiency. It is another object of the present invention to provide an automatic hard diskdrive read/write head fabrication system which greatly educes the hard diskdrive read/write arm manufacturing cost. It is still another object of the present invention to provide an automatic hard diskdrive read/write head fabrication system which achieves high quality control. According to one aspect of the present invention, there is provided an automatic hard diskdrive read/write arm fabrication system, which comprises a plurality of rotary tables arranged in a line, conveyer means arranged at one side of the rotary tables for carrying shaped material blocks to the rotary tables for processing into finished hard diskdrive read/write arm, a set of processing implement respectively disposed adjacent to the rotary tables and controlled to process shaped material blocks into finished hard diskdrive read/write arm, and a plurality of transferring tool means, for example, mechanical arms controlled to transfer shaped material blocks from the conveyer means to the rotary tables for processing by the processing implement respectively, and to transfer processed shaped material blocks from the rotary tables to the conveyer means. According to another aspect of the present invention, the rotary tables each comprise a plurality of platforms equiangularly arranged around the respective center shaft, a plurality of workpiece holders respectively provided at the platform for holding shaped material blocks for processing by the processing implement, and a plurality of reciprocating rods radially extended from the respective center shaft toward the platforms and reciprocated by compressed air source means between a first position where the reciprocating rods are pressed on a respective shaped material block at the workpiece holder of each of the platforms, and a second position where the reciprocated rods are moved away from the platforms. According to still another aspect of the present invention, the reciprocating rods each have a front fork and a workpiece holding down means coupled to the front fork and controlled to hold down a workpiece at the workpiece holder at each of the platforms.
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patent: 4795021 (1989-01-01), Möller
patent: 5315750 (1994-05-01), Roseliep
patent: 5454148 (1995-10-01), Ewer et al.
Annex Technology International Co. Ltd.
Briggs William
Pro-Techtor Inter-national Services
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