SU448931A1 - Parts Assembly Device - Google Patents

Description

one

The invention relates to tooling assembly operations and can be used in various fields of technology, such as instrument engineering, electrical engineering, mechanical engineering, etc.

Apparatus for assembling parts, equipped with a loading mechanism and a floating platform are known.

The purpose of the invention is to increase the speed and expand the technological capabilities of the device.

For this, the proposed device is equipped with a two-stage gyroscope made in the form of a heel, its disk platform, driven from the engine and pivotally connected to the axis of the last fast-rotating rotor, rolls across the disk.

The platform can be mounted on a disk in a rolling bearing, and the unbalance load can be strengthened on a fast-rotating rotor.

FIG. 1 shows the proposed device, a longitudinal section; in fig. 2-4 are embodiments of the device; in fig. 5 is a diagram of the action of forces and moments on the device elements; in fig. 6 is a scheme of search movements performed by the device platform.

The device (Fig. 1) consists of a platform 1, which is secured to the disc-shaped base 3 by posts 2. The latter by

springs 4 rests on rubber bushings 5 installed in support 6. Pins 7 fixed to base 3 are missed into the holes of sleeves 5, the engine 8 is also attached to it, on whose shaft there is a bracket 9. It is pivotally mounted on axis 10 with respect to the base 3 of the axis 11, on which the rotor 12 is freely mounted.

The pins 7 serve to provide greater stability to the base 3 with the engine 8. Flush with the upper plane of the platform 1, a supporting plane 13 is installed for loading parts and unloading the assembled assembly. The assembled parts — the sleeve 14 and the roller 15 — are located in the slots of the disks 16 and 17 of the transport rotor 18. To limit the displacements of the roller 15, the disk 17 is provided with a guide sleeve 19.

A platform 21 is mounted on the platform 1 through the bearing 20 (FIG. 2). The disk is driven by the shaft 22 by the electric motor 8. At the same time, the shaft 22 can rotate the axis II through which the rotor 12 is mounted. The bracket 9 is pivotally attached to the shaft 22 by the axis 13.

All other elements of the device in FIG. 2 are the same as in FIG. 1 and have the same purpose.

On the rotor 12 (FIG. 3), the unbalance load 23 is strengthened. The rotor 12, as in FIG. 2, si

Ditches movably on the axis 11, which is pivotally mounted in the bracket 9 by means of the axis 24. The bracket is attached to the shaft of the electric motor 8 attached to the base 3.

On platform 1 (FIG. 4), not one is installed, but immediately a whole group of assembled sleeves 14 is installed. To do this, a corresponding number of holes are made in the disk 16 of the transport rotor 18 to accommodate the sleeves 14 in them. Accordingly, the assembled rollers 15, the number of which is equal to the number of assembled sleeves 14. All other elements are made the same as in FIG. one.

The device for assembling parts in the first embodiment operates as follows.

By rotating the trans-rotor 18 to the platform 1, the disk 16 supplies the assembled sleeve 14. A roller 15 is fed through the guide sleeve 19. Since the axis of the roller 15 and the holes of the sleeve 14 are generally displaced relative to each other, the roller 15 rests against the upper end of the sleeve 15 14.

The motor 8 rotates the bracket 9. Together with the bracket, the axis 11 rotates about the axis of the electric motor. At the same time, the rotor 12 rotates around both the axis 11 and the axis of the engine 8. When the rotor 12 rotates, a gyroscopic moment Mg occurs (Fig. 5), pressing the rotor to base 3 and precipitating left spring 4. In addition to the gyroscopic moment Mg, there is also a moment MG of the weight of the rotor 12 and the moment MP of the centrifugal force of inertia c.

The combined effect of these moments leads to rotation of the platform 1 and the base 3 in the plane of the drawing (Fig. 5) due to subsidence of the springs 4, and the centrifugal force Rc also shifts the platform in the direction of this force. Under the action of the centrifugal force Rc and the moments Мр, MG and Мр, the axis of the platform begins to describe in space a conical surface. In this case, the assembled sleeve 14 performs a search movement. Collected roller 15 when in contact with the end of the sleeve 14, making a complex movement, enters the hole by the latter under the action of its own weight.

According to the second variant, the device operates as follows.

The rotation of the shaft 22 of the electric motor 8 is eaten simultaneously by the disk 21 and the rotor 12 (Fig. 2), which, rolling on the base 3, tells the disk 21 the blade 3 and the platform 1 the search movement. This variant is advisable to use when assembling the threaded matings, since the screwing movement here is carried out by transferring additional rotation of the collecting threaded sleeve or nut (not shown) from the disk 21. This variant can also be used for the assembly of face, prismatic and other connections.

According to the third variant, the device operates in the same way as the first variant, with the only difference being that due to the imbalance of the rotor 12 (Fig. 3) and the high speed of its 5 rotation, the search movement has a vibratory character. This significantly reduces the frictional force of the sleeve on the platform 1 and prevents the mutual alignment of the axes of the roller and the sleeve. In addition, due to the vibration effect of the rotor 12 on the platform, the search motion trajectory is more developed. All this leads to a reduction in assembly time and, consequently, to an increase in the performance of the device as a whole.

15 The vibratory nature of the exploratory assembly motions, which in this case represent a nutational motion, is determined by the centrifugal force dc unbalance 23 (Fig. 3) rotating around axis 11.

0 In the fourth embodiment, a group assembly can be carried out on the device. To do this, disks 16 and 17 (Fig. 4) are equipped with a row of windows so that they are above platform 1. Assembled parts (sleeves 14 and

25 rollers 15) are placed in the windows of the transport rotor, and platform 1 is driven in the same movement as in the first embodiment. In addition to mounting on the platform 1 of the group of parts to be assembled, this version of the device allows assembling such assemblies, in which several shafts need to be inserted into one part with several openings at once.

The efficiency of the device, good build quality and speed are determined by a number of factors. From the centrifugal force of inertia Rc (Fig. 6) of the rotor 12, the system oscillates along arrow A along axis 11. Under the action of the hydroscopic moment MF, the platform oscillates along arrow B, and these oscillations appear in the form of a wavelike movement of the base 3 of platform 1 (line I). In addition, under the action of a force to the axis of the shaft 22 describes in space a conical surface. Such an aggregate

5, the action of forces on moments causes the mating parts to quickly and reliably engage with each other.

The device for assembling parts is essentially a two-stage gyro.

Subject invention

Claims (3)

1. A device for assembling parts, equipped with a loading mechanism and a floating platform for installing one of the parts of the assembly kit, characterized in that, in order to increase speed and expand the technological capabilities of the device 0, it is equipped with a two-stage gyroscope, made in the form of a platform-carrying disk, driven by an engine and pivotally connected to the axis of the last high-speed rotor rolling across the disk. 2. A device according to claim 1, characterized in that the platform is mounted on a disk in a rolling bearing. 3. A device according to claim 1, characterized in that the unbalance load is strengthened on the fast-rotating rotor. / 7 6 71 9 20 18 Sh l // sixteen 13 t. / / f-ig.TS. ig. five : / 777 77