US Patent: 3,724,291
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| Positioning Apparatus
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Patentee:
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| Fred M. Goebel (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 29, 1971 |
| Granted: |
Apr. 03, 1973 |
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Joel Havens
"Vintage Machinery" entry for R. K. Le Blond Machine Tool Co.
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Description: |
| Abstract:
A positioning system for an indexable slide or turret comprises a bifurcated member located adjacent the turret and engageable with the teeth of a locating gear to accurately position the turret relative to the bifurcated member. The bifurcated member slides in a bore provided within a sleeve. Upon contacting a selected tooth of the gear, the sides of the bifurcated member are wedged apart by the tooth until they contact the sleeve so that each side is wedged between the tooth and the sleeve, thereby positively and accurately positioning the selected tooth of the gear and the attached tool turret.
Claim:
In a machine tool apparatus including a tool holding turret, a rotatable locating gear operably secured to said turret and indexing means for terminally positioning said gear and turret at a predetermined point including, a bore positioned in proximity to said gear, a reciprocating plunger means positioned in said bore for engaging said gear upon movement toward said gear, said plunger means including at its gear-engaging end a bifurcated yoke means for engaging a tooth of said gear, said bifurcated yoke means comprising an integral yoke having two side members resiliently and integrally joined together at respective rearward ends thereof, and disposed to operably engage internal surfaces of the bore upon engagement of the yoke means with a tooth of said gear so as to expand said yoke means, said turret being mounted upon a mounting plate attached to said gear, and hydraulic means for clamping said mounting plate and said turret to a plate support. |
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