TH97060A - Scroll driving devices and machine tools - Google Patents

Abstract

DC60 This invention relates to a sliding drive device (2) consisting of a drive shaft (6) provided with an outlet component (20), stands (4, 5) and a rotating drive path (24) for driving the drive shaft (6) along its longitudinal axis (C-C). The device also consists of a connecting rod (32) protruding along its transverse axis (B-B) and at one end fitted with a bearing (37) for guiding the drive shaft (6) in a direction around the axis of rotation (D-D) defined at a non-zero angle (a) to the longitudinal axis (C-C), and at least one coupling section (91) supported by the stands (4, 5) for transmitting thrust in at least one direction parallel to the longitudinal axis (C-C) of the drive shaft (6). This invention also provides a machine tool. This invention relates to a sliding drive device (2) consisting of a drive shaft (6) provided with an outlet component (20), stands (4, 5) and a drive trajectory (24) for driving the drive shaft (6) along its longitudinal axis (C-C). The device also consists of a connecting rod (32) protruding along its transverse axis (B-B) and at one end fitted with a bearing (37) for guiding the drive shaft (6) in a direction around the axis of rotation (D-D) defined as non-zero (a) to the longitudinal axis (C-C), and at least one coupling (91) supported by the stands (4, 5) for transmitting thrust in at least one direction parallel to the longitudinal axis (C-C) of the drive shaft (6). This invention also provides a machine tool.

Claims (12)

1. The sliding drive device (2) consists of a drive shaft (6) supplied with an outlet component (20) suitable for receiving the sliding drive at the stands (4, 5) supporting the guides (10, 16, 17) for guiding the sliding and rotating motion of the drive shaft (6) and a rotating drive path (24) suitable for causing the drive shaft (6) to rotate around the longitudinal (C-C) axis of the person. The drive device is also characterized by a connecting rod (32) protruding along the transverse (B-B) axis and at one end assembled. With bearings (37) for guiding the drive shaft (6) in a direction around the rotational axis (D-D) given a non-zero angle (a) with respect to the longitudinal axis (C-C) of the drive shaft (6), and at least one coupling (91) supported by stands (4, 5) for transmitting thrust in at least one direction parallel to the longitudinal axis (C-C) of the drive shaft (6). 2. The drive device (2) under claim 1 is characterized by one or each coupling (91) having a force acting on the drive shaft (6) under its rotation, i.e., a downward force (F1, F2) which causes one component to be oriented in the direction of the longitudinal axis (C-C) to move the outlet component (20) relative to the stand (4, 5). 3. The drive device (2) in accordance with claim 1 or 2, having a specific design in which one or each coupling (91) is suitable for preventing the end (92) of the connecting rod (32) from sliding along the longitudinal axis (C-C). 4. The drive device (2), according to any of the preceding claims, is of a specific type in which one or each of the couplings (91) are suitable for preventing the end (92) from sliding along the longitudinal axis (C-C). 5. The drive device (2), according to any of the preceding claims, is characterized by the end (92) of the connecting rod (32) being fitted with hinge paths (88, 89, 90) to make the connecting rod (32) suitable for rotation around the axis relative to the stand (4, 5) around the hinge paths (88, 89, 90) in the transverse planes (B-B, C-C) perpendicular to the planes with the longitudinal axis (C-C) and the rotational axis (D-D) so that the bearing (37) can move along the longitudinal axis (C-C). 6. The drive device (2), according to any of the preceding claims, is characterized in which the connecting rod (32) is fitted to slide relative to the coupling section (91) along the longitudinal transverse axis (B-B) of the connecting rod (32). 7. The drive device (2) in accordance with claim 5 or claim 6 shall be of a specific type in which the hinge path (88, 89, 90) consists of a ball joint (90) mounted on a stand (4, 5), the ball joint (90) is positioned at a certain distance from the drive shaft (6), and the rod (88) is mounted in the hinge path (89, 90). The rod (88) is suitable for sliding in the hinge path (89, 90). 8. Drive device (2) pursuant to any of the preceding claims, with a specific designation in which the bearing (37) consists of ball bearings. 9. The drive device (2), according to any of the preceding claims, is characterized by a locking mechanism (68, 70) for locking the ball bearing (37) on the drive shaft (6) in two opposing directions outward the movement of the outlet component (20) relative to the stand (4, 5). 10. The drive device (2), according to any of the preceding claims, is characterized by a rotating drive path (24) suitable for causing the drive shaft (6) to alternately rotate in opposite directions around an axis with a period (P), and by which the bearing (37) has two coupling components (58, 62) suitable for alternately acting with two forces (F1, F21) in opposite directions as a function of the direction of rotation of the drive shaft (6) to move the outlet component (20) relative to the stand (4, 5) by reciprocating motion. 11. The drive device (2), according to any of the preceding claims, is of a specific type in which the drive path (24) consists of a motor unit and gearbox (26), a connecting rod (27) which is connected to the motor unit and gearbox (26) via a ball joint (29A) and a rocker arm (28) with one end fixed to the drive shaft (6) and the other end connected to the connecting rod (27) via a ball joint (29B). 12. Machine tools, having specific characteristics which include devices, drive devices (2) according to any of the preceding claims.