Method of cleaning machined surface and chip removing tool

Claim 1

A chip removing tool comprising: a body member having an upper end adapted to be attached to a rotatable main spindle of a machining center for rotation therewith; a casing surrounding the outer periphery of said body; a compressed air intake member having a lower part unrotatably fitted in said casing, said compressed air intake member being longitudinally movable between a projecting position taken when it is moved upwardly and a retracting position taken when it is moved downwardly, said compressed air intake member being constantly urged toward said projecting position by a spring; a mutual engagement means adapted to lock both said body and compressed air intake member so that they cannot rotate relatively to each other, only when said compressed air intake member is in said projecting position, thereby to lock said casing so that it cannot rotate with respect to said body; a cooling water intake member having a lower part secured in said casing; means defining an air flow path longitudinally extending through said compressed air intake member and passing through said casing and then downwardly extending through said body to communicate with means defining an outlet provided in the vicinity of the lower end of said body; and means defining a cooling water flow path longitudinally extending through said cooling water intake member and passing through said casing and then downwardly extending through said body to communicate with said outlet, wherein, when the upper end of said body is attached to said main spindle, said compressed air intake member abuts a first joint having an air inlet passage and provided on said spindle head of said machining center and is moved to said retracting position, and said air inlet passage and air flow path are allowed to communicate with each other, and at the same time, said cooling water intake member is allowed to communicate with a cooling water inlet passage formed in a second joint provided on said spindle head.

Claim 3

A method of cleaning a machined surface comprising: mounting a chip removing tool having a compressed air flow path and a cooling water flow path, respectively, on a main spindle of a machining center, said pair of flow paths communicating with a mutual outlet; rotating said chip removing tool unitarily with said main spindle whereby said mutual outlet rotates; simultaneously jetting out compressed air and cooling water from said mutual outlet, thereby to remove chips attached to a machined surface of a workpiece; and thereafter, jetting out only said compressed air from said outlet to dry said machined surface.

Claim 4

A method of cleaning a machined surface comprising: mounting a chip removing tool having a compressed air flow path and a cooling water flow path, respectively, on a main spindle of a machining center, said pair of flow paths communicating with a mutual outlet; rotating said chip removing tool unitarily with said main spindle whereby said mutual outlet rotates; simultaneously jetting out compressed air and cooling water from said mutual outlet, thereby to remove chips attached to a machined surface of a workpiece; and thereafter, jetting out only said compressed air from said outlet to dry said machined surface.