Abstract: A clamping device for clamping a rotatably supported shaft, is provided with a thin-walled sleeve arranged such that a gap is provided along a circumferential direction of the shaft. The clamping device clamps the shaft by deforming the thin-walled sleeve towards the shaft.

Abstract: A drive mechanism is interposed between two members to make the members move relatively with respect to each other. At least one of the two members is guided to move linearly. The drive mechanism comprises: cam followers that are rotatably supported on one of the two members, that are arranged in the linear moving direction, and that are spaced from each other; and a cam that is rotatably supported on the other one of the two members and that is provided in its circumference with a cam groove in which the cam followers engage, the rotation axis of the cam being arranged in the direction of the linear moving direction. The two members are made to move relatively with respect to each other by driving the cam to rotate and making the cam followers engage successively in the cam groove and move in the direction of the rotation axis.

Abstract: A power transmission device is capable of correctly adjusting relative positions of two shafts in a direction of rotation even when the shafts are rotationally driven, and comprises a hollow, outer shaft, to one end of which a drive gear is fixed, an inner shaft, to one end of which a carrier is fixed, and a planetary gear mechanism. The planetary gear mechanism comprises a sun gear, planetary gears supported on a carrier, and a ring gear having internal teeth and external teeth, the internal teeth engaging with the planetary gears. A first gear and a second gear on an input shaft, respectively, engage with outer teeth of the drive gear and the ring gear. When the sun gear is made stationary and the input shaft is rotationally driven, the outer shaft and the inner shaft are rotated with the same number of revolutions in the same direction. When the sun gear is rotated, a position of the inner shaft in the direction of rotation is adjusted relative to the outer shaft.

Abstract: An article carrying apparatus for carrying, in a carrying direction, an article placed on a carry face of a carry section making use of a vibration, includes: the carry section provided with the carry face of which the carrying direction is linearly restricted; and a vibration applying mechanism that applies the vibration to the carry section. The vibration applying mechanism includes: a first cam mechanism for converting a motion that has been input from a predetermined drive source into a reciprocating linear motion in a first direction that has at least a component in the carrying direction, and for transmitting the reciprocating linear motion to the carry section; and a second cam mechanism for converting a motion that has been input from a predetermined drive source into a reciprocating linear motion in a second direction that has at least a component in a normal direction of the carry face, and for transmitting the reciprocating linear motion to the carry section.

Abstract: A machine tool is provided with: a rotating table apparatus that has a table for holding a workpiece, and that rotates the table based on a drive force that has been input; a processing area for processing the workpiece, the rotating table apparatus being carried into and out from the processing area; and a drive source for inputting the drive force when connected to the rotating table apparatus, the drive source being provided in the processing area such that the drive source can be disconnected from the rotating table apparatus.

Abstract: A motor-fastening mechanism fastens an output shaft of a motor and an input shaft of a driven member to each other. The motor-fastening mechanism has a fastening section which fastens the output shaft of the motor and the input shaft of the driven member relatively immovably, a motor-attachment member which is attached to the motor, an engaged section which is provided on either one of the motor-attachment member and the driven member, and an engaging section which is provided on the other of the motor-attachment member and the driven member and which is engaged to the engaged section such that displacement of the output shaft in a rotating direction thereof is regulated.

Abstract: An article carrying apparatus is capable of inhibiting a force that acts on the apparatus due to a vibration being applied to its carry section in order to carry an article. The article carrying apparatus includes: a carry section for linearly restricting a carrying direction of an article to be carried; a cam mechanism for applying a vibration to the carry section by transmitting, to the carry section, a reciprocating linear motion having at least a carrying direction component in the carrying direction, wherein the vibration causes the article to be carried in the carrying direction; an enclosure section for supporting the cam mechanism; and a balancer for inhibiting a force that acts on the enclosure section due to the cam mechanism applying the vibration to the carry section.

Abstract: An article carrying apparatus is capable of inhibiting a force that acts on the apparatus due to a vibration being applied to its carry section in order to carry an article. The article carrying apparatus includes: a carry section for linearly restricting a carrying direction of an article to be carried; a cam mechanism for applying a vibration to the carry section by transmitting, to the carry section, a reciprocating linear motion having at least a carrying direction component in the carrying direction, wherein the vibration causes the article to be carried in the carrying direction; an enclosure section for supporting the cam mechanism; and a balancer for inhibiting a force that acts on the enclosure section due to the cam mechanism applying the vibration to the carry section.

Abstract: A transporting apparatus permits to intermittent indexing with freely and independently setting stop position of work tables and stopping period adapting to each individual work station. The transporting apparatus sequentially transports a work table across a plurality of work stations. The transporting apparatus has a linear transporting path linearly connecting a plurality of work stations and guiding linear motion of the work table, a cylindrical cam engaging with a contactor provided on the work table for driving the work table for linear motion, and the cylindrical cam having a stopping zone formed corresponding to each position of the work station and having no axial displacement relating to cam rotation angle and a transporting zone formed corresponding to a position between the work station and having an axial displacement relative to cam rotation angle.

Abstract: An article carrying apparatus is capable of carrying an article efficiently and correctly. The article carrying apparatus for carrying an article, includes: a housing; an input shaft rotatably supported by the housing; an output section supported by the housing in such a manner that the output section can oscillate and reciprocate; an article carry section that oscillates and reciprocates integrally with the output section; a first cam mechanism that moves in conjunction with the input shaft and oscillates the output section, wherein the first cam mechanism includes a first cam having a cam face that maintains a contact state with the output section during reciprocation of the output section, and a contact position at which the output section and the cam face contact one another moves in the same direction as a reciprocating direction in which the output section reciprocates; and a second cam mechanism that moves in conjunction with the input shaft and reciprocates the output section.

Abstract: An article carrying apparatus is capable of inhibiting a force that acts on the apparatus due to vibration being applied to its carry section in order to carry an article. The article carrying apparatus includes: a carry section for restricting, to a circumferential direction, a carrying direction in which an article is carried; a cam mechanism to which a driving force is input from an input shaft and that is for applying a vibration to the carry section by transmitting, to the carry section, an oscillating motion having at least a circumferential direction component in the circumferential direction, wherein the vibration causes the article to be carried in the circumferential direction; and a balancer for inhibiting a force that acts on the input shaft due to the cam mechanism applying the vibration to the carry section.

Abstract: A small-sized, lightweight rotary table apparatus is provided. The rotary table apparatus has: a support rest for rotatably supporting a rotary table; and a base for turnably supporting, in a cantilever fashion, the support rest by a shaft element, which is protrudingly formed on the support rest, being inserted into a hole provided in the base. The shaft element has formed therein a hollow section for accommodating at least a portion of a drive mechanism for rotating the rotary table.

Abstract: A rotating table apparatus using a cam mechanism and having a higher precision than a conventional rotating table is realized. A rotating table apparatus having a driven shaft supported by a housing and driven by a driving device, and a rotating table which is rotatingly driven by said driven shaft using a cam and cam followers, wherein the rotating table apparatus has an opposing surface which opposes an end surface of the rotating table in a direction along a rotation shaft of said rotating table, and oil is intervened in between the opposing surface and said end surface.

Abstract: A transporting apparatus permits to intermittent indexing with freely and independently setting stop position of work tables and stopping period adapting to each individual work station. The transporting apparatus sequentially transports a work table across a plurality of work stations. The transporting apparatus has a linear transporting path linearly connecting a plurality of work stations and guiding linear motion of the work table, a cylindrical cam engaging with a contactor provided on the work table for driving the work table for linear motion, and the cylindrical cam having a stopping zone formed corresponding to each position of the work station and having no axial displacement relating to cam rotation angle and a transporting zone formed corresponding to a position between the work station and having an axial displacement relative to cam rotation angle.

Abstract: A mechanical pressing machine includes a slider mounted on an input shaft at a location below a cam, and a sliding block and a balance weight mounted at locations above the cam. A first cam follower rotatably carried on the slider abuts against a lower surface of the cam and is biased by a spring member toward the lower surface. A second cam follower rotatably carried on a sliding block abuts against an upper surface of the cam and is biased by spring members toward the upper surface. When the cam is rotated together with the input shaft, the slider effects vertical sliding movement through the first cam follower, and the sliding block and the balance weight effect vertical sliding movement in a direction opposite from the direction of movement of the slider through the second cam follower.

Abstract: A power transmission device is capable of correctly adjusting relative positions of two shafts in a direction of rotation even when the shafts are rotationally driven, and comprises a hollow, outer shaft, to one end of which a drive gear is fixed, an inner shaft, to one end of which a carrier is fixed, and a planetary gear mechanism. The planetary gear mechanism comprises a sun gear, planetary gears supported on a carrier, and a ring gear having internal teeth and external teeth, the internal teeth engaging with the planetary gears. A first gear and a second gear on an input shaft, respectively, engage with outer teeth of the drive gear and the ring gear. When the sun gear is made stationary and the input shaft is rotationally driven, the outer shaft and the inner shaft are rotated with the same number of revolutions in the same direction. When the sun gear is rotated, a position of the inner shaft in the direction of rotation is adjusted relative to the outer shaft.

Abstract: A machine tool is provided with: a rotating table apparatus that has a table for holding a workpiece, and that rotates the table based on a drive force that has been input; a processing area for processing the workpiece, the rotating table apparatus being carried into and out from the processing area; and a drive source for inputting the drive force when connected to the rotating table apparatus, the drive source being provided in the processing area such that the drive source can be disconnected from the rotating table apparatus.

Abstract: An inclining and rotating table apparatus comprises a rotating table device having a rotating table, and a support base for rotatably supporting the rotating table having a shaft body provided perpendicular to a rotation axis of the rotating table, and a base for rotatably supporting the rotating table device using the shaft body. A table surface of the rotating table is inclined by making the rotating table device rotate. A first V-shaped groove is directly formed in the shaft body along its rotating direction. The base has a second V-shaped groove opposing the first V-shaped groove. A cross roller bearing is structured by providing rolling bodies, which are placed in contact with the first and second V-shaped grooves and are capable of rolling therebetween, between the shaft body and the base, and arranging a rolling axis of a rolling body perpendicular to that of an adjacent rolling body.

Abstract: An article carrying apparatus for carrying, in a carrying direction, an article placed on a carry face of a carry section making use of a vibration, includes: the carry section provided with the carry face of which the carrying direction is linearly restricted; and a vibration applying mechanism that applies the vibration to the carry section. The vibration applying mechanism includes: a first cam mechanism for converting a motion that has been input from a predetermined drive source into a reciprocating linear motion in a first direction that has at least a component in the carrying direction, and for transmitting the reciprocating linear motion to the carry section; and a second cam mechanism for converting a motion that has been input from a predetermined drive source into a reciprocating linear motion in a second direction that has at least a component in a normal direction of the carry face, and for transmitting the reciprocating linear motion to the carry section.

Abstract: A lathe spindle unit is provided with: a rotatable spindle having a cam follower, and a holding section for holding a work piece; a drive source for rotatively driving the spindle; and a driven rotation shaft that has a cam and that is rotatively driven by the drive source. The driven rotation shaft rotatively drives the spindle using the cam and the cam follower.