TWM515926U - Angle device of cam - Google Patents

Description

Cam indexing device

This creation is related to the transmission of intermittent motion, and more specifically, a cam indexing device.

As is shown in the first figure, a conventional cam indexing device is provided on a reference surface of a central processing machine for carrying a working rotary disk of the processing machine. The conventional device includes a power output shaft rotary disk 10 disposed coaxially with the working rotary disk. The output shaft rotary disk 10 is provided with a roller 11 at equal intervals on a circumferential portion; a cam input force shaft 12 is provided with a cam 13 thereof. The rib 14 is located between the two rollers 11, and a motor (not shown) drives the cam input shaft 12, and the cam 13 is in contact with the roller 11 through the rib 14 to make the output shaft 10 Rotating in the spiral direction of the cam 13 as described, the working rotary disk outputs a torque to drive its rotation.

A disadvantage of the conventional device is that the axis of the roller 11 is perpendicular to the axis of the output shaft rotary disk 10, and when the rib 14 of the cam 13 is cut between the two rollers 11, the rib 14 and the roller 11 form a distinct back. Gap 15. The backlash 15 causes the cam force input shaft 12 to disperse the force of the output shaft rotary disk 10, the transmission efficiency is reduced, the swaying, the noise, and the roller 11 are subjected to excessive biasing force and are easily damaged.

The technical problem to be solved in this case is that the ribs of the conventional cam indexing device and the backlash of the roller cause the force to be dispersed, the transmission efficiency is reduced, the swaying, the noise, the roller is easily damaged and the like.

The solution adopted in the present invention to solve the above technical problem is: a cam indexing device comprising a cylindrical cam and an indexing plate, wherein the disk surface of the indexing plate is evenly distributed and installed in a circumferential direction close to the indexing disk. a roller having an axis parallel to an axis of the indexing disk, the axis of the cylindrical cam being vertically staggered with an axis of the indexing disk.

The advantage of the present invention is that when the rib of the cylindrical cam is cut between the two rollers, there is no backlash between the rib and the roller. The backlash-free fit concentrates the input force of the cylindrical cam on the indexing plate, improves the transmission efficiency, has no sloshing, no noise, reduces the probability of the roller being damaged by excessive biasing force, and the cam indexing device has good durability.

20‧‧‧Cylindrical cam

21‧‧‧ rib

30‧‧‧Division

31‧‧‧

32‧‧‧Circle

33‧‧‧Roller

The first figure is a plan view of a conventional cam indexing device.

The second figure is a three-dimensional appearance of the indexing plate of the creative cam indexing device.

The third figure is the front view of the indexing disc of the creative cam indexing device.

The fourth picture is a side view of the creative cam indexing device.

For the convenience of the description, the central idea expressed in the column of the above novel content is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above.

As shown in the second, third, and fourth figures, the present cam indexing device includes a cylindrical cam 20 and an indexing disk 30; the disk surface 31 of the indexing disk 30 is adjacent to the circumference 32 of the indexing disk 30. A plurality of rollers 33 are mounted in a uniform orientation, the axis of the roller 33 being parallel to the axis of the indexing disk 30, the axis of the cylindrical cam 20 being vertically staggered with the axis of the indexing disk 30.

The rib 21 of the cylindrical cam 20 is cut into between the two rollers 33, the motor (not shown) The cylindrical cam 20 is driven to rotate, and the indexing plate 30 is rotated in the spiral direction of the cylindrical cam 20 by the contact of the rib 21 with the roller 33, thereby outputting a torque.

Because the axis of the roller 33 is parallel to the axis of the indexing plate 30, and The axis of the cylindrical cam 20 is vertically staggered with the axis of the indexing plate 30, eliminating the backlash between the rib 21 and the roller 33. The rib 21 and the roller 33 have no backlash, so that the cylindrical cam 20 concentrates the input force on the indexing plate 30, improves the transmission efficiency, has no sway, has no noise, and reduces the probability of the roller being damaged by excessive biasing force, and the cam indexing. The device has good durability.

20‧‧‧Cylindrical cam

21‧‧‧ rib

30‧‧‧Division

31‧‧‧

32‧‧‧Circle

33‧‧‧Roller

Claims (1)

A cam indexing device comprising a cylindrical cam and an indexing disc, wherein: the disk surface of the indexing plate is evenly distributed with a plurality of rollers in a circumferential direction of the indexing disk, the axis of the roller and the minute The axes of the dials are parallel, and the axis of the cylindrical cam is vertically staggered with the axis of the indexing disk.