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4539876 Machine tool
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New Patents
elongated crank lever arm having a bearing in one end is pivotably and slidably mounted in said hub channel by a moderately sized pin inserted through the hub bearing and lever bearing bore allowing the lever to pivot from side to side in the channel with a substantial portion of the lever extending outside of the channel and biased outwardly for leverage. The channel arrangement provides quick reversal of the arm from one side to the other and to the arm under conditions of extreme load in turning the hub. Detent means is provided in the hub to hold the crank arm releasably in either position.
4539634 MODIFICATION OF MACHINING PROGRAM IN A NUMERICAL CONTROL MACHINE TOOL Takayoshi Sakai, Kiyohis Mizoguchi, Masazumi Hayakawa, Kagamihara, Japan assigned to Yamazaki Machiner Works Ltd
A numerical control machine tool is adapted to operate in accordance with a machining program stored in a memory. The numerical control machine tool is provided with a program amendment command means capable of outputting a program amendment command. When the program amendment command is issued, the operation speeds of the machine tool set in the machining program in the memory are rewritten and amended to the speeds optimum for the instant machining demand. Once this amendment is made, the repetition of the machining cycle for consecutive works can be made at the optimum speeds without requiring speed adjustment for each machining cycle.
4539876 MACHINE
TOOL
Carl Myers, Richard Ratzel assigned to The Warner & Swasey Company
)i....
a,/-
~¢~
.
_
, /
An improved machine tool includes a one piece, as cast base having a spindle drive motor mounting section, a wayblock mounting section, a tailstock mounting section and a tank for receiving coolant. The wayblock mounting section includes a basin having a rim and a plurality of upwardly extending projections in a central portion of the basin. Downwardly extending projections on a substantially as cast wayblock extend into the basin. A body of cast in situ material is disposed in the space between as cast surface areas on the upwardly extending base projections and as cast surface areas on the downwardly extending wayblock projections to hold the wayblock against movement relative to the base. A one piece as cast headstock has downwardly extending projections which are received in recesses formed in the wayblock. A second cast in situ body of material is disposed between surfaces on the headstock and the wayblock to hold the headstock against movement relative to the wayblock. An as cast tailstock support bar extends across a portion of the base which forms a coolant tank. Cast in situ bodies of material are formed between projections from the tailstock support bar and side surfaces of recesses in the base to hold the tailstock support bar against movement relative to the base. A chip conveyor assembly extends across the coolant tank to a location adjacent the headstock.
4542576 REPLACEABLE HEAD MULTISPINDLE FASTENING APPARATUS Junichi Yamanaga, Shiro Naito, Fujimi, Japan assigned to Honda Giken Kogyo Kabushiki Kaisha
New Patents
elongated crank lever arm having a bearing in one end is pivotably and slidably mounted in said hub channel by a moderately sized pin inserted through the hub bearing and lever bearing bore allowing the lever to pivot from side to side in the channel with a substantial portion of the lever extending outside of the channel and biased outwardly for leverage. The channel arrangement provides quick reversal of the arm from one side to the other and to the arm under conditions of extreme load in turning the hub. Detent means is provided in the hub to hold the crank arm releasably in either position.
4539634 MODIFICATION OF MACHINING PROGRAM IN A NUMERICAL CONTROL MACHINE TOOL Takayoshi Sakai, Kiyohis Mizoguchi, Masazumi Hayakawa, Kagamihara, Japan assigned to Yamazaki Machiner Works Ltd
A numerical control machine tool is adapted to operate in accordance with a machining program stored in a memory. The numerical control machine tool is provided with a program amendment command means capable of outputting a program amendment command. When the program amendment command is issued, the operation speeds of the machine tool set in the machining program in the memory are rewritten and amended to the speeds optimum for the instant machining demand. Once this amendment is made, the repetition of the machining cycle for consecutive works can be made at the optimum speeds without requiring speed adjustment for each machining cycle.
4539876 MACHINE
TOOL
Carl Myers, Richard Ratzel assigned to The Warner & Swasey Company
)i....
a,/-
~¢~
.
_
, /
An improved machine tool includes a one piece, as cast base having a spindle drive motor mounting section, a wayblock mounting section, a tailstock mounting section and a tank for receiving coolant. The wayblock mounting section includes a basin having a rim and a plurality of upwardly extending projections in a central portion of the basin. Downwardly extending projections on a substantially as cast wayblock extend into the basin. A body of cast in situ material is disposed in the space between as cast surface areas on the upwardly extending base projections and as cast surface areas on the downwardly extending wayblock projections to hold the wayblock against movement relative to the base. A one piece as cast headstock has downwardly extending projections which are received in recesses formed in the wayblock. A second cast in situ body of material is disposed between surfaces on the headstock and the wayblock to hold the headstock against movement relative to the wayblock. An as cast tailstock support bar extends across a portion of the base which forms a coolant tank. Cast in situ bodies of material are formed between projections from the tailstock support bar and side surfaces of recesses in the base to hold the tailstock support bar against movement relative to the base. A chip conveyor assembly extends across the coolant tank to a location adjacent the headstock.
4542576 REPLACEABLE HEAD MULTISPINDLE FASTENING APPARATUS Junichi Yamanaga, Shiro Naito, Fujimi, Japan assigned to Honda Giken Kogyo Kabushiki Kaisha