JPS5810179B2 - Automatic roller assembly device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for automatically assembling rollers, and more particularly, to an apparatus for automatically assembling rollers such as cylindrical rollers and spherical rollers to a cage.

A conventional apparatus for assembling rollers of this kind has a structure as shown in FIG. 1, for example.

In other words, the rollers conveyed through chute 1.

First, the cartridges 3 having a plurality of wells 2 are stocked in order.

The cartridge 3 includes a ratchet mechanism 4 and its driving device 5.
The rollers conveyed from the chute 1 are sequentially stocked in each shaft 2.

A cage expansion device 8 for holding a shutter 6 and a cage 7 is provided on the bottom surface of the cartridge 3, and by opening the shutter 6, the rollers in each of the vertical holes 2 are dropped into the cage expansion device 8 all at once. , the rollers dropped by the device 8 are transferred to the cage 7
It is designed to be incorporated into

However, according to this method, all the rollers stocked in the cartridge 3 have the same dimensional tolerance.

In other words, a large number of rollers with the same dimensional tolerance are stored in the cartridge 3, which has the disadvantage that it cannot be used when handling rollers with various dimensional tolerances, such as in a computer-based matching device. There was a drawback that jigs and tools shown at 3, 4, 6, and 8 in the figure were required for each model number, making the jigs and tools very expensive.

The present invention solves the above-mentioned inconveniences in conventional devices, and provides a device that can hold rollers with various dimensional tolerances and incorporate them into a cage in, for example, matching work using a computer. In other words, the purpose is to provide a device for automatically assembling rollers that can assemble rollers with various dimensional tolerances, and the purpose is to provide a device that is inexpensive and can be assembled quickly. It is.

To explain the embodiment, in FIGS. 2 to 5, 10 is a roller and 11 is a cage.

Reference numeral 12 denotes a chute for transporting rollers, which transports rollers that have been sorted and stored in advance according to their size, arranged in a fixed posture for each type to prevent mixing of different types. .

13 is a constant holding device, which has a roller holding hole 15 that is continuous to the chute 12 via a chute connecting portion 14;
A certain number of rollers 10 are held in the hole 15 and are slidably arranged on the slide surface 16, and the roller delivery port 17
faces onto the slide surface 16.

A plurality of the devices 13 are disposed on the slide surface 16 in a radial arrangement, etc., and slide back and forth in the horizontal direction toward the center, and each device 13 has a chute 12.
Connect it.

Therefore, the number of rollers to be installed is determined according to the types of rollers classified according to their size.

The roller receiving block 19, which has a roller receiving opening 18 facing the center of the sliding surface 16, has a curved roller guide passage 20 that sends out the received roller 10 to the side while changing the direction of the roller 10, with the axis line being horizontal. The direction of the received roller 10 is changed so that it is almost vertical at a delivery port 21 opened at the lower side of the roller, or in other words, the direction of the roller axis is changed so that the direction of the roller axis is aligned with the direction of the cage axis.

The rollers naturally fall within this passage 20 due to their gravity, but an air jet nozzle 22 may be provided to urge this delivery.

23 is a slide mechanism of the constant holding device 13, and in the case shown in the figure, an air cylinder or a hydraulic cylinder is used.
One set of slide mechanisms 23 is provided for each device 13.

Reference numeral 24 denotes a chuck, which is configured to be movable up and down as shown by the arrow A and rotatable as shown by the parentheses B, below the roller insertion block 19, and the retainer 11 is chucked on the upper surface of the chuck. The holding window 11a is made to face the side of the roller delivery port 21 of the roller insertion block 19 by the movement, so that the roller to be delivered can be received in the holding window 11a, and the bearing is opened in accordance with the arrangement interval of the holding windows 11a. It is possible to match a computer's matching command by rotating a predetermined rotation angle within a range required for assembly.

The present invention has the above-described configuration, and includes a constant holding device 1.
Each of 3 holds rollers 10 classified in advance according to size difference in a constant posture for each category, and holds rollers with dimensional tolerances that are adapted to the dimensional tolerances of the cage by, for example, a command signal from a computer. 13 is selected and slid to send a constant number of rollers possessed by the device into the guide passage 20 of the roller insertion block 19.

At this time, the chuck 24 moves upward to position the cage 11 around the lower part of the roller insertion block 19, and the holding window 11a
One of them faces the outlet 21 of the guide passage 20.

Therefore, the roller 10 whose direction has been changed in the guide passage 20 is sent into the holding window 11a.

The chuck 24 sequentially rotates the retainer 11, and the rollers 10 are successively assembled into the retaining window 11a.

When incorporating rollers into all of the holding windows 11a, one constant holding device 13 has the same number of rollers as the holding windows 11a,
Once the rollers in their possession are sent into the roller insertion block 19, they are temporarily withdrawn radially outward and wait for the next computer command.

The chuck 24 stops rotating at the position where the last roller is fed into the holding window 11a.

In other words, the rotation of the predetermined rotation angle is completed.

On the other hand, when assembling a cage that holds the rollers between the inner and outer rings, such as in a spherical roller bearing, for example, depending on the bearing assembly, one or two of the holding windows (one of the two holding windows In some cases, the rollers may be assembled leaving the adjacent retaining window in place.

In other words, rollers are not installed in all the holding windows, and only 1 to 2 rollers are installed.
In some cases, the rollers are not assembled to the holding window but are assembled between the inner and outer rings, but in this case, the constant holding device 13 is configured to have one or two fewer rollers than the total number of holding windows, The chuck 24 stops rotating at the position where the assembly of a predetermined number of rollers is completed.

That is, the rotation angle in this case is a rotation angle that leaves one or two holding windows.

In other words, in matching using a computer,
If rollers with different dimensional tolerances are prepared, first
For the th cage, a constant holding device having the most suitable rollers is selected, the rollers held by the constant holding device are assembled into the cage, and the device is evacuated from the center of the sliding surface and placed on standby.

When the computer determines that the rollers of the second constant holding device are appropriate for the next cage, the command signal advances the second constant holding device and incorporates the rollers it has, etc. A constant holding device is selected according to instructions from a computer, and rollers with multiple dimensional tolerances are matched to corresponding cages.

In addition, when assembling rollers, their own weight is generally used to feed them into the holding window, but the last few rollers may not be able to be assembled due to their own weight alone, and in this case, pressurized air is supplied from the air jet nozzle. Make it squirt and send the roller.

As described above, this invention enables a single automatic assembly device to assemble rollers with multiple types of dimensional tolerances into a cage to which they are compatible, and quickly performs the assembly using a computer or the like. It is something that can be implemented.

Furthermore, the device is simple and the equipment cost is low.

In the example, the case where two sets of constant holding devices are arranged is illustrated, but when a large number of constant holding devices are arranged, they should be arranged radially around the receiving opening of the roller insertion block facing the sliding surface. In this case, in order to keep the posture of the rollers constant, the roller holding holes may be arranged so that the direction thereof matches the receiving opening.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the configuration of a conventional roller assembly device, Fig. 2 is a sectional view of main parts of an embodiment of the present invention, Fig. 3 is a side view, Fig. 4 is a plan view, and Fig. 5 is a partial slope view. 10... Roller, 11... Cage, 12
... Chute, 13 ... Constant holding device, 15 ... Roller holding hole, 16 ... Slide surface, 17 ... Outlet port, 18...Acceptance port, 19...Roller insertion block, 20...
...Guidance passage, 21...Output port, 22
...Air jet nozzle, 23...
Slide mechanism, 24...Chuck.

Claims (1)

[Scope of Claims] 1. It is configured to be capable of reciprocating on a slide surface while holding a fixed amount of rollers of a single type, which are classified according to all sizes and transported in a fixed posture, and the roller delivery port is connected to the slide surface. a roller guide path which is arranged directly below the sliding surface of the device and has a roller receiving opening facing the sliding surface, and is curved so that the direction of the received roller is changed and sent out to the side. a roller insertion block having a roller insertion block; a slide drive mechanism capable of sliding the constant holding device and aligning the roller delivery port with the receiving opening of the roller insertion block; and a slide drive mechanism arranged below the roller insertion block so as to be horizontally rotatable. and a chuck for chucking the cage and rotating the cage around the roller inserting block with the retaining window facing the roller feeding port of the roller inserting block; A device for automatic assembly of rollers, characterized in that the rollers are rotated at a predetermined rotation angle corresponding to the rotation angle. 2. A plurality of sets of the constant holding devices are arranged on the sliding surface, and a plurality of types of rollers classified according to the size difference are aligned and conveyed to each constant holding device according to the size difference, and held. 2. An apparatus for automatically assembling rollers according to claim 1, wherein the rollers held by the holding device are assembled into the cage by selectively driving the holding device in accordance with a predetermined matching program.