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US 4,930,332 AGranted
Apparatus for exchanging tool for bending machine
AssigneeMaru Kikai Kogyo Co., Ltd.
InventorToshio Hongo
Life of this patent
Estimating the term…
Abstract
A bending machine having a plurality of reversible dies mounted on the lower end of a ram. A reversibly supporting shaft is laterally installed at the rear side of the ram, and a reversing lever is mounted on the reversibly supporting shaft. The reversible dies are removably mounted on the ends of the reversing lever to be readily exchanged from the upper die to the goose-neck die or vice versa.
Claims11
An apparatus for exchanging a tool of a bending machine comprising:
- a frame,
- a ram movably mounted on said frame, a drive unit connected to said frame for moving of the ram in an upward and a downward direction, said ram having a front side and rear side,
- a reversible supporting shaft unit having an axis and being rotatably mounted on said frame to the rear side of said ram for rotation about said axis,
- a plurality of dies movably mounted on said frame, said dies mounted in side-by-side relation and located in parallel relationship to said shaft unit,
- a reversing lever unit secured to said reversible supporting shaft unit, said reversing lever unit projecting outwardly from said shaft unit and having an outer die mounting end portion thereon, said die mounting end portion of said reversing lever unit being coupled to said dies, said reversing lever unit locating said dies relative to said ram when rotating by said shaft unit, and
- a positioning unit for selectively positioning said reversing lever unit on said reversible supporting shaft unit to thereby enable selective positioning of said dies, upon rotation of said shaft unit, between a coupling position with said ram and an uncoupling position spaced from said ram.
3 more elements
An apparatus for exchanging a tool of a bending machine comprising:
- a frame,
- a ram movably mounted to said frame for movement in a vertical direction, said ram having a front side and a rear side,
- a plurality of reversible dies releasably connected in side-by-side alignment to the lower end of said ram, said plurality of reversible dies having a first end and a second end,
- first split dies located to the first end of said reversible dies and slidably mounted on the lower end of said ram and second split dies located to the second end of the reversible dies, said split dies being slidably mounted on the lower end of said ram,
- a reversible supporting shaft unit located at the rear side of said ram and spaced laterally from said ram and said reversible dies, said shaft unit having an axis and being mounted for rotation about said axis,
- a reversing lever unit mounted on said reversible supporting shaft unit, said reversing lever unit and extending from said supporting shaft to an outer end, said outer end being releasably coupled to said reversible dies, said reversing lever unit individually positioning said reversible dies when rotated by said shaft unit,
- and a positioning unit selectively positioning the reversing lever unit on said shaft unit to thereby enable said reversible dies, upon rotation of the shaft unit to couple and decouple with respect to said ram.
4 more elements
Dependencies are inferred from the claim text.