摘要:
A joint for transmitting movements between articulated elements of a parallel kinematics robot has at least two degrees of freedom and includes: a first housing, a second housing arranged rotatable in relation to the first housing about a first axis, and a shaft arranged rotatable in relation to the second housing about a second axis which coincides with a longitudinal axis of the shaft. The shaft is arranged rotatable in relation to the second housing by at least a first angular contact bearing. In applications where one of the revolute pairs of a joint is subjected to radial and axial forces of similar order, and another one is subjected almost solely to radial forces, it is advantageous to manage the forces of the prior by means of an angular contact bearing or bearings configured to bear both radial and axial loads, whereby a joint with very small backlash in a particularly compact design can be achieved.
摘要:
A robot according to embodiments includes a first link (14b), a second link (14c), an actuator (Mf), a scissors gear (43, 143), and a support part (72). The second link (14c) is rotatably connected to the first link (14b). The actuator (Mf) drives the second link (14c) in a rotatable manner. The scissors gear (43, 143) includes a main gear (44, 144) and a sub gear (45, 145), and outputs driving force from the actuator (Mf) to the second link (14c). The support part (72) is attached to the first link (14b) and rotatably supports the scissors gear (43, 143). Furthermore, the scissors gear (43, 143) includes a spring (46, 146) that is arranged adjacent to the support part (72) in the direction of the rotational axis (43c, 143c) of the scissors gear (43, 143) and applies biasing force to the main gear (44, 144) and the sub gear (45, 145) in rotational directions different from each other.
摘要:
A robot (1, 1a, 1b) according to embodiments includes a speed reducer (41a to 41c), a first shaft (61, 61a, 61b), a rotary electric machine (41a to 41c), a second shaft (62, 62a, 62b), and a brake (43a to 43c, 44a to 44c). The speed reducer (41a to 41c) reduces and outputs rotation to be input into an input unit. The first shaft (61, 61a, 61b) is connected to the input unit (422, 422a). The rotary electric machine (41a to 41c) rotates the first shaft (61, 61a, 61b). The second shaft (62, 62a, 62b) is connected to the input unit (422, 422a). The brake (43a to 43c, 44a to 44c) regulates the rotation of the second shaft (62, 62a, 62b).
摘要:
A sealed worm gear type finger joint unit (1) for a robot hand has a circular opening (82) in a gear box case (4) of the unit, and the opening is closed by a rubber bush (13). When the rubber bush (13) is removed, a shaft end face (11a) of a worm shaft section (11A) is exposed from the circular opening (82), and this makes a tool engagement section (11b) formed on the shaft end face is accessible from the outside. A tool for turning the worm shaft section (11A) is fitted in the tool engagement section (11b), and the worm shaft section (11A) can be easily turned by the tool. Turning the worm shaft section (11A) turns a worm (2), turning a worm wheel (3) meshing with the worm (2), and this turns the joint shaft (12). As a result, a swing arm connected to shaft end sections (12a, 12b) of the joint shaft (12) can be moved to a predetermined position. In the finger joint unit, the joint shaft can be easily manually turned.
摘要:
A method for the assembly of a first part (1) to a second part (2) of a manipulator, wherein the first part has a first interface surface (8) and the end of the second part has a second interface surface (9), which first and second interface surfaces (8, 9) after the assembly forms an interface (3) between said first part and said second part, wherein at least one of said interface surfaces (8, 9) is provided with a guide member (34) about which the other part is rotatable, joining said first part (1) and said second part (2) such that said first interface surface (8) and said second interface surface (9) are positioned to be compatible to each other, rotating said first part (1) about said guide member (34) until a gearwheel (25) of the first part (1) fully meshes a pinion (15) of the second part (2) and fastening the first part (1) firmly to said second part (2) by means for fastening (10).
摘要:
1. A power transmission device for transmitting motion between drive means (56) and a driven member (22), the device comprising two identical assemblies (40, 40') of transmission elements associated in parallel with the driven member (22) and each including an outlet element (32, 32') co-operating with the driven member (22) in order to displace it one direction or in the opposite direction, the device being characterized in that each transmission assembly further includes an inlet element having the same axis of rotation as the outlet element (32, 32'), in that each transmission assembly is received in a housing (42, 42') which is mounted free to rotate about the axis of the outlet element (32, 32') of said assembly, and in that the two housings (42, 42') are interconnected by torque transmission means (52, 52', 54, 54') obliging them to rotate in opposite directions and at the same speed about the axes of their corresponding outlet elements (32, 32') when torque about said axis is applied to one of the housings, the device including external means (62) outside said housings (42, 42') and said transmission assemblies for applying torque to one of the housings about the axis of the corresponding outlet element.
摘要:
A ring gear (6) having a plurality of gear teeth (6a) formed on an inner perimeter, a first revolving gear (7) having a plurality of gear teeth (7a) formed on an outer perimeter, the first revolving gear meshing with the ring gear, a first eccentric cam (11) provided in a center position of the first revolving gear in such a way as to be rotatable with respect to the first revolving gear, a first rotating shaft (3) provided in the first eccentric cam, the first rotating shaft making the first revolving gear revolve about a central axis (5) by rotating the first eccentric cam, a through pin (13) inserted into a first through hole (7c) placed in the first revolving gear, a second rotating shaft (4) connected to the through pin, the second rotating shaft outputting the rotation obtained by the rotation of the first revolving gear on the axis thereof, and a first elastic section (14) located between the first through hole and the through pin, the first elastic section making contact with the first through hole and the through pin are provided, and the sum of the area of a place in which the first elastic section makes contact with the through pin is made greater than the sum of the area of a place in which the first elastic section makes contact with the first through hole.
摘要:
A robot (1, 1a, 1b) according to embodiments includes a speed reducer (41a to 41c), a first shaft (61, 61a, 61b), a rotary electric machine (41a to 41c), a second shaft (62, 62a, 62b), and a brake (43a to 43c, 44a to 44c). The speed reducer (41a to 41c) reduces and outputs rotation to be input into an input unit. The first shaft (61, 61a, 61b) is connected to the input unit (422, 422a). The rotary electric machine (41a to 41c) rotates the first shaft (61, 61a, 61b). The second shaft (62, 62a, 62b) is connected to the input unit (422, 422a). The brake (43a to 43c, 44a to 44c) regulates the rotation of the second shaft (62, 62a, 62b).