Provided is a machining tool which is smooth to operate, is accurate and highly precise, can cope with small to heavy loads, has a tilting direction that can be fixed, has improved centering performance of a shaft after tilting, and is capable of significantly improving wear of a tilt support mechanism. The machining tool of the present invention comprises: an upper shaft body (1) which is attached to a higher-level device and to which torque is transmitted; a tilting device (3) which is coupled to a tip end side of the upper shaft body (1), comprises a fixed yoke (3a) and a tilting yoke (3b), and is provided with a pin (3dx) for rotating the tilting yoke (3b) in one direction, and a pin (3dy) for rotating the tilting yoke (3b) in a direction orthogonal to the one direction; a main body drive shaft (4) provided at an upper end thereof with a tilting plate (7) coupled to the tilting yoke (3b); a holder (5) which is inserted into a tip end side of the main body drive shaft (4), and in which a cutting tool (6) is mounted; and a tilt support mechanism (15) which abuts a lower surface of the tilting plate (7) and which supports the tilting of the tilting plate (7) using steel balls (12).
B23C 3/12 - Ébavurage ou finition des arêtes, p. ex. ébarbage des angles soudés
B23D 79/00 - Méthodes, machines ou dispositifs non prévus ailleurs, pour le travail du métal par enlèvement de matière
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
Provided is a processing tool with which there is little wear between a main body drive shaft (14) and a drive shaft (5), even if the main body drive shaft (14) tilts. This processing tool comprises: an upper shaft body (6) which is attached to a host device and to which torque is transmitted; a drive shaft (5) inserted into the upper shaft body (6) and extending on the same axis; a main body drive shaft (14) attached to a tip side of the drive shaft (5); a holder (15) inserted into a tip side of the main body drive shaft (14) and fitted with a blade tool (9); a spherical bearing (4) tiltably supporting the outside of the main body drive shaft (14); a center steel ball (7) provided so as to be sandwiched between a recess in the tip center of the drive shaft (5) and a recess in the opposing rear end center of the main body drive shaft (14); and a plurality of axial steel balls (10) provided in a long groove (11) on the drive shaft (15) tip outer periphery and a hole 18 in the main body drive shaft (14).
Provided is a deburring holder comprising a plurality of compression springs, and capable of switching combinations of the compression springs. A deburring holder of the present invention comprises: a main compression spring that receives a load of a deburring tool; a first sub-compression spring that receives the load in a spring receiving inner cylinder; a second sub-compression spring that has a larger spring constant than the first sub-compression spring, and receives the load in a spring receiving outer cylinder; and a step cover. The step cover switches a state in which only the main compression spring receives the load, a state in which the main compression spring and the first sub-compression spring receive the load in parallel, a state in which the main compression spring and the second sub-compression spring receive the load in parallel, and a state in which the main compression spring, the first sub-compression spring, and the second sub-compression spring receive the load in parallel.
The objective of the present invention is to provide a machining tool capable of performing accurate and stable small extensions and retractions. This machining tool, in which one-touch detachment and attachment of a holder main body can be performed by sliding a clamp cover in an axial direction, is provided with: an upper portion body having a coupling portion for attachment to a higher-level device, and having a tube portion in a lower portion thereof; a first spring provided on an outer circumferential wall of the tube portion; the holder main body which is detachably fitted into the tube portion of the upper portion body and which comprises a protruding portion around which a second spring is wound, a central body portion, and a collet chuck having a lower end in which a tool is gripped; the clamp cover which covers the first spring and is fitted slidably onto the outside of the tube portion; steel balls which are held in through holes in the tube portion, and one side of each of which faces the body portion of the holder main body and the other side of each of which faces an inner circumference of the clamp cover; a V-shaped groove which is provided in an outer circumferential wall of the body portion to support the steel balls; and an inclined surface which is provided on an inner circumference of the clamp cover to support the steel balls.
B23Q 3/12 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être fixés à une broche en général
B23B 31/107 - Caractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assuré par des éléments d'arrêt agissant latéralement, p. ex. doigts, écrous, clavettesCaractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assuré par éléments mobiles, p. ex. des billes
B23G 1/46 - Équipement ou accessoires spécialement conçus pour les machines ou dispositifs à fileter pour tenir les outils de filetage
