摘要:
Provided is a support and guide device capable of smoothly shifting a moving block (2) configured to move along a guide track (1) from one of a plurality of track rails (4) forming the guide track (1) to another of the plurality of track rails (4) even when clearances are secured at joints between the plurality of track rails (4). The plurality of track rails (4) are arranged in series, and the moving block (2) is movable along the guide track (1) while being sequentially shifted between the plurality of track rails (4). Each of the track rails (4) has a guide surface (41) formed along a longitudinal direction of each of track rails (4). The moving block (2) includes contact elements (3) configured to travel on the guide surface (41) of the track rail (4). Each of the track rails (4) has auxiliary sliding surfaces (5) formed on both end portions of the each of the plurality of track rails (4) in the longitudinal direction, the auxiliary sliding surfaces (5) being formed side by side with the guide surface (41) and being inclined with respect to the guide surface (41). The moving block (2) includes leading sliding portions (9) each being configured to face one of the auxiliary sliding surfaces (5) of the track rail (4) when the moving block (2) reaches one of both end portions of the track rail (4) in the longitudinal direction.
摘要:
A rotary shaft device (3) includes a shaft body (20) rotatably supported by angular bearings (35, 36), and a support body (40) configured to rotatably support the shaft body (20) via the angular bearings (35, 36). A ball rolling groove (21) having a Gothic arch shape in which rolling elements (39) of the angular bearings (35, 36) roll is formed in an outer circumferential surface of the shaft body (20).
摘要:
A linear motor device includes a linear motor and a controller that applies pressure to a pressurizing target by moving a needle provided with the linear motor. The controller includes: a speed-change position-setting unit that calculates a deceleration start position, which is a position where a movement speed of the needle starts to be reduced from a first speed to a second speed when the pressurizing target start to be pressurized, based on a distance required to reduce the movement speed of the needle from the first speed to the second speed which is lower than the first speed and at which pressure applied to the pressurizing target when the needle comes into contact with the pressurizing target is equal to or lower than a predetermined pressure; and a position determination unit that drives the needle of the linear motor at the first speed when the needle is moved from a predetermined toward the pressurizing target, and moves the needle at the second speed when the needle reaches the deceleration start position.
摘要:
Provided is a damping device that is smaller in size and capable of increasing a damping force with respect to vibrational energy that is propagated between two structural bodies. The damping device includes: a fixed cylinder (2) that is configured to be fixed to a first structural body and formed into a cylindrical shape so as to comprise a hollow portion; a shaft member (3) that is configured to be fixed to a second structural body, the shaft member (3) being housed in the hollow portion of the fixed cylinder (2) and having an outer peripheral surface provided with a helical thread groove; a nut member (4) that is threadedly engaged with the shaft member, and converts an axial motion of the shaft member into a rotational motion; a rotor member (6) that is formed into a cylindrical shape so as to cover the fixed cylinder (2) and to form a cylindrical accommodation chamber (8) between the rotor member (6) and an outer peripheral surface of the fixed cylinder, and is rotated by the nut member (4); and viscous fluid (7) that is sealed in the cylindrical accommodation chamber (8).
摘要:
A rotary shaft device (3) includes a shaft body (20) rotatably supported by angular bearings (35, 36), and a support body (40) configured to rotatably support the shaft body (20) via the angular bearings (35, 36). A ball rolling groove (21) having a Gothic arch shape in which rolling elements (39) of the angular bearings (35, 36) roll is formed in an outer circumferential surface of the shaft body (20).
摘要:
An object of the invention is to provide a grease composition, having enough low-dust generation property for using thereof in a clean environment, for example, a clean room, and having enough load bearing in order to lubricate a motion guiding device to be incorporated in a large-scale of clean robot. The grease composition for a clean environment comprising, a base oil, a thickener and a extreme-pressure agent, in which a kinetic viscosity of the base oil at 40°C is 100~300 mm 2 /s, the thickener comprising a lithium complex soap, a content of the thickener is 10~40 mass% with respect to the total amount of the grease composition.