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US3726162A Expired / Lapsed US ⏱️ 0.0 years remaining

Numerically controlled lathe

Assignee: NSK Ltd
•
Filing: 1970-12-16
•
Granted: 1973-04-10
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Expires: 1990-12-16
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Abstract

Abstract A numerical control lathe of the invention includes a head stock containing a main spindle and its driving means and having a workpiece positioned thereon by a chuck, and a took post having a tool mount having no indexing function, a vertical slide and a saddle movable back and forth with respect to the bed along Xaxis. The vertical slide is driven to move vertically along Yaxis. The vertical slide is driven to move vertically along Yaxis on the saddle by a driving means and the saddle is driven by other driving means. Said head stock moves along Z-axis. This invention also provides an automatic multiple spindle numerical control lathe. In this case, the main tool post having two or more control axes movable in accordance with a command from the numerical control means; a plurality of auxilliary tool posts fixed to the main tool post; work spindle means equal in number to the auxiliary tool posts are provided. Workpieces chucked by work spindle means are machined simultaneously.

Inventors

  • 👤 Y Sato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 23:42
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/16; B23B3/161; B23B3/30; G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/182; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5125; Y10T82/00; Y10T82/25; Y10T82/2502; Y10T82/2524

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 145 words
An automatic control lathe including a numerical control means, a main tool post, a headstock means and a drive means therefor, the improvement comprising: a plurality of auxiliary tool posts mounted on said main tool post, each of said tool posts having a plurality of tools mounted thereon; a plurality of rotatable work spindle means disposed on said headstock means and facing a respective auxiliary tool post on said main tool post, each of said spindle means including a chuck for a workpiece; control means for moving said main tool post in three directions in accordance with instructions from said numerically controlled means to position a tool on each auxiliary tool post in a plane passing through the center of each workpiece whereby each workpiece is successively cut by said tools located on a plurality of parallel spaced planes to simultaneously work on each workpiece.
Claim 2
Dependent Claim 145 words
An automatic control lathe including a numerical control means, a main tool post, a headstock means and a drive means therefor, the improvement comprising: a plurality of auxiliary tool posts mounted on said main tool post, each of said tool posts having a plurality of tools mounted thereon; a plurality of rotatable work spindle means disposed on said headstock means and facing a respective auxiliary tool post on said main tool post, each of said spindle means including a chuck for a workpiece; control means for moving said main tool post in three directions in accordance with instructions from said numerically controlled means to position a tool on each auxiliary tool post in a plane passing through the center of each workpiece whereby each workpiece is successively cut by said tools located on a plurality of parallel spaced planes to simultaneously work on each workpiece.
Claim 3
Dependent Claim 19 words
The apparatus as defined in claim 1 wherein the number of workpieces equal the number of auxiliary tool posts.
Claim 4
Dependent Claim 20 words
The apparatus as defined in claim 1 wherein a feeder is provided to automatically feed blanks into said spindle means.

References Cited (Backward Citations)

US2377383A Cited
US2611290A Cited
US2911868A Cited
US3015806A Cited
US3442175A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-09 1976-10-09 1977-04-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-09 1980-10-09 1981-04-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-09 1984-10-09 1985-04-10 $7700.00 Window Closed / Lapsed

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