JPH03213229A - Equally distributing method and device thereof for ball in ball bearing - Google Patents

Abstract

PURPOSE:To flexibly cope easily and in a short time with equal distribution of a ball bearing of other kinds with a different name number by inserting work arrows between ball rows being positioned in the central part thereof and further lifting the arrows to be turned in the direction of separating from each other so as to perform an equally distributing process of balls. CONSTITUTION:Work arrows 41, 43 are moved downward together and inserted into a ball row of a ball bearing 1, and balls 4 are collected in a front face back side of a main unit by next turning the work arrows 41, 43 in the direction of separating from each other by a preset angle theta deg.. Next the work arrows 41, 43 are closed and positioned in the initial standby position of an equal distribution process in the front face rear. Next, the work arrows 41, 43 are inserted into the middle of the eight balls 4 for instance, to divide the balls 4, and equally distributing work of the first pair of balls 4 is finished by wedging the work arrows 41, 43 into the balls 4 by a preset depth so that an equal distribution space epsilon of the balls 4, brought into contact with the work arrows 41, 43, obtains a value in which a circumferential length of a pitch circle of the ball rows is divided by a number of the balls 4 and further a diameter of the ball 4 is subtracted from the quotient of the division.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention can be applied to a single device using a pair of working arrows, or
By using two devices using a pair of work arrows together, it is possible to evenly distribute the balls of many types of long-numbered ball bearings.Especially, it is possible to equally distribute the balls of ball bearings of small lot products or extremely small lot products. The present invention relates to a method for evenly distributing balls in a ball bearing, which can automate the evenly distributing work and save labor, and a device therefor.

[Prior Art] As shown in FIG. 9, conventionally, in a single row ball bearing 1, after a ball insertion process in which a plurality of balls 4 are inserted between an outer ring 2 and an inner ring 3 is completed, a tenth As shown in the figure, the equal distribution process of distributing the balls 4 at equal intervals along the pitch circle of the balls 4 is performed, and the single row ball bearing l that has completed the second equal distribution process is placed in the next upper cage. Proceed to the process of inserting the lower cage and rivet crimping of the upper and lower cages.

Further, as shown in FIG. 11, in the double row ball bearing 5, after the ball inserting step of inserting a plurality of balls 4 between the outer ring 6 and the inner ring 7 is completed, as shown in FIG. The process of equally distributing the balls 4 along the pitch circle 4 is carried out, and the process similarly proceeds to the next process of inserting the upper cage, inserting the lower cage, and rivet crimping of the upper and lower cages.

The conventional ball bearing equal distribution process is used for regular large-lot or medium-lot products.
Special distribution devices and jigs and tools are used for each (S designation number), and it cannot be easily converted to another old number, so it is not used for another name, Kagawa.

However, due to the diversification of demand for large ball bearings and small and medium-sized ball bearings, ball bearings with special dimensions (for example, inch series and wide width products) or special shapes (double row type, inner ring medium wide type), etc. There are many small-lot products (for example, several tens to several hundred pieces) or extremely small loft products (for example, one to several pieces), which are difficult to automate and require a lot of manpower.

In this work of evenly distributing the balls of a ball bearing for a small-lot product or an extremely small loft product, as shown in FIG. Using a jig and tool 9 consisting of a disc-shaped stand, place the ball bearing 1 that has completed the ball insertion work on this jig and tool 9, and then use a work rod lO, which is a round bar with a conical tip. Move the balls 4 to match the good balls 4 with each depression 9a. Then the first
As shown in Figure 3(b), take one piece of the upper cage 11 and
After covering the balls 4 in the ball bearing 1, it is sent to the next step of inserting the lower cage and rivet crimping of the upper and lower cages.

Or, as a slightly more automated version, as shown in Fig. 14(a), when the balls 4 are evenly distributed,
A jig 15 in which a group 13 of working arrows 13a to 13h, which are successively lowered in cross section and arrangement to fill the space between them, is fixed to a stand 14.
using the tallest work arrow 13 in the work arrow group 13.
A is covered with a ball bearing l, and then, as shown in FIG. 14, the outer ring 6 is turned by hand in the inward direction to collect all the balls 4 after the working arrow 13a. Then, as shown in FIG. 14(C), the ball bearing 1 is lowered little by little toward the jig 15 while (or without) rotating the outer ring 2 of the ball bearing 1 in the reverse A direction. , then the work arrow 13b
, 13c, . . . enter between the good balls 4 and distribute the balls 4 one after another evenly. After the last working arrow 13h separates the last ball 4, the ball bearing 1 is extracted from the working arrow group 13 of the jig and tool 15, and one upper cage is taken and placed over the balls 4 in the ball bearing 1.

[Problem to be solved by the invention]

However, in the former conventional method described above, when aligning the ball 4 with the recess 9a of the jig 9 using the work rod IO,
If you do not match them in order, the last ball 4 will go into the depression 9a.
Since the ball bearing 1 is lost, it is necessary to use the left hand to appropriately tilt or float the ball bearing l, which is not suitable for automation.

In addition, the latter conventional method described above requires less skill than the former method, and although automation is possible, the production cost of the work arrow group 13 is high, and it is large-sized. When there are many types of arrows, it becomes difficult to store them, and furthermore, if you neglect to maintain the accuracy of all the work arrows, there is a risk of damaging the ball 4. In addition, when attempting to automate this method, other auxiliary mechanisms are installed around the work arrow group 13, and the work arrow group 13 is generally installed in a location where it is difficult to replace, which also requires time and effort to handle. .

In other words, with the two conventional methods mentioned above, it is difficult to automate them, and it is difficult to deal with different ball bearing numbers. The problem was that it could not be applied at all.

This invention was made by focusing on these conventional problems, and it is possible to flexibly deal with the equal distribution of many types of ball bearings with different name numbers in an extremely simple and short time. The purpose of the present invention is to provide a method for equally distributing balls in a ball bearing and a device therefor, which can be used for not only row but also double row ball bearings, has inexpensive jigs and tools, and can save labor. It is something.

[Means and effects for solving the problem] Therefore, in the method and device for equally distributing balls in a ball bearing according to the present invention, a pair of working arrows are each fixed to an arm so as to be freely adjustable in the radial direction, and the working arrows are The arm to which is fixed is moved up and down with respect to the main body by a vertical movement mechanism, and the working arrows are rotated in mutually opening and closing directions by a turning mechanism,
The working arrows can be rotated in the same direction. Then, a working arrow is inserted into the ball row of the ball bearing that has completed the ball insertion process, and the working arrows are rotated in a direction in which they are mutually separated, thereby performing a ball collecting process. Next, the working arrows are rotated in the same direction to be located at the center of the row of balls that have completed the ball collecting process, and the working arrows are inserted between the rows of balls and pulled up and rotated in the direction in which they open from each other.
This operation is repeated to perform the process of equally distributing a predetermined number of balls.

Further, as one form of the method and device for equally distributing balls in a ball bearing according to the present invention, arms to which a pair of working arrows are similarly fixed in a radius-adjustable manner are rotated only in the mutually opening and closing directions, and - Two ball distribution devices equipped with rotating mechanisms that cannot be rotated at the same time are used, one ball distribution device exclusively performs the ball collection process, and the other ball distribution device performs the ball distribution process. It is.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

First, a first embodiment of an apparatus for performing isotropy according to the present invention will be described.

In FIG. 1, the ball equalizing device 20 of the ball bearing 1 includes a main body 21 consisting of a stand portion 21a and a base portion 21b connected to the front lower part of the stand portion 21a.

A rail 22 is fixed to the front of the stand part 21a in the vertical direction, and the case 2 disposed in front of the stand part 21a
The three linear motion bearing portions 23a engage with the rail 22 to constitute a linear guide, that is, a sliding means 24. Also,
A screw shaft 26 of a ball screw 25 is rotatably attached to the side of the rail 22 on the front surface of the stand section 21a, and a nut section 23b formed on the case 23 is attached to the screw shaft 26. engaged. The screw shaft 26 is driven in the forward and reverse directions by a third pulse motor 27, which is an example of a rotating machine whose rotation angle can be determined by an external signal. The slide means 24, the ball screw 25, and the case 23 constitute a vertical movement mechanism 28.

A first pulse motor 29 and a second pulse motor 3 similar to the third pulse motor 27 are provided on the upper surface of the case 23.
0 is fixed, a small gear 32 is fixed to the output shaft 31 of the first pulse motor 29, and this small gear 32 is connected to a large gear 33.
A solid second shaft 34 is fixed to the large gear 33. Further, the output shaft 35 of the second pulse motor 30
A small gear 36 is fixed to the , and this small gear 36 is connected to the large gear 3.
A second shaft 38 is fixed to the large gear 37, which is hollow, coaxial with the second shaft 34, and rotatable relative to the second shaft 34. These small gears 32. The large gear 33, small gear 36, and large gear 37 are housed inside the case 23. The second shaft 34 and the second shaft 38 constitute a double shaft, and the first pulse motor 29 to the second shaft 38 constitute a turning mechanism 45 for the pair of working arrows 41 and 43.

A first arm 39 is attached to the lower end of the second shaft 34, and a second arm 40 is attached to the lower end of the second shaft 38, respectively.
and is fixed in a direction perpendicular to the second shaft 38, and a first working arrow 41 is attached to the tip of the first arm 39.
The second arm 40 has a second working arrow 4 at its tip.
3 is movably attached along the second arm 40 and fixedly attached by a screw 44.

In this turning mechanism 45, when the first pulse motor 29 is rotated in the normal direction and rotated in the direction of its output shaft 318B, the first working arrow 41 is rotated in the D direction, and at the same time, the second pulse motor 30 is rotated in the reverse direction. When the output shaft 35 is rotated in the C direction, the second working arrow 43 is rotated in the E direction, and the pair of working arrows 41 and 43 are rotated in the direction in which they are opened from each other. Conversely, if the first pulse motor 29 is reversed and the second pulse motor 30 is rotated forward, the first working arrow 41 will be in the opposite direction and the second working arrow 43 will be in the reverse E direction. The pair of working arrows 41 and 43 rotate in the direction of closing each other.

Furthermore, if both the first pulse motor 29 and the second pulse motor 30 are rotated in the forward direction, the first working arrow 41 rotates in the D direction and the second working arrow 43 rotates in the reverse E direction. The pair of working arrows 41 and 43 rotate together in the D direction or in the reverse E direction. Conversely, if both the first pulse motor 29 and the second pulse motor 30 are reversed, the first working arrow 41
is rotated in the opposite direction and the second working arrow 43 is rotated in the E direction,
The pair of working arrows 41 and 43 rotate together in opposite directions or in the E direction.

Such a third pulse motor 27 and vertical movement mechanism 2
8 and the working arrows 41.43 are moved up and down by the two pulse motors 29, 30 and the turning mechanism 45.
The rotational movement of 43 is performed as preset by a drive control device (not shown).

The working arrows 41 and 43 have, for example, an elongated plate shape, the side surfaces thereof are formed obliquely in the radial direction from the axis of the double shaft, and the cross section thereof is trapezoidal. Then, its lower end is symmetrically cut off at a preset angle.

The front part of the main body 21 has a bearing i*i base 46 on the base part 21b.
is provided, and on this bearing mounting table 46, the ball bearing l that has completed the ball insertion process is placed with its center aligned with the axis of the double shaft. When the pair of working arrows 41 and 43 are located above the ball bearing 1 and at the standard standby position with their mating surfaces facing directly in front of the stand portion 21a, the state shown in FIG. 1 is reached. .

Next, the operation of the first embodiment will be explained.

As shown in FIG. 1, the single row ball bearing 1 which has completed the ball insertion process is placed on the bearing mounting table 46, and its central axis is formed by the first shaft 34 and the second shaft 38 of the turning mechanism 45. Align it with the axis of the double shaft. Then, the first pulse motor 29 is rotated in the reverse B direction to rotate the first working arrow 41 in the reverse direction, and the second pulse motor 30 is rotated forward in the reverse C direction to rotate the first working arrow 41 in the reverse direction. The second working arrow 43 is rotated in the reverse E direction, the pair of working arrows 41 and 43 are rotated in a direction to close each other, and are positioned at a reference position on the front side with respect to the main body 21. Also, loosen the screws 42.44 of the working arrow 41.43, move the working arrow 41.43 along the arm 39.40, and adjust the position of the working arrow 41.43 to the pitch circle of the ball row of the ball bearing l. and fix the working arrows 41, 43 to the arms 39, 40, respectively, by means of screws 42.44. Furthermore, the working arrows 41.43 are moved upward by the vertical movement mechanism 28, and are positioned at the initial standby position of the ball collecting process, as shown in FIG.

In FIG. 2, FIG. 2(a) shows the initial standby state of this ball collecting process.

Next, as shown in FIG. 2(b), the vertical movement mechanism 28
Move the working arrows 41 and 43 down together, and move the working arrow 4.
1.43 into the ball row of ball bearing l, and then
As shown in Figure (C), the first pulse motor 29 is rotated in the normal direction and the second pulse motor 30 is rotated in the reverse direction, so that the first working arrow 41 is in the D direction and the second working arrow 43 is in the E direction. The working arrows 41. are rotated by an angle θ° which is preset based on the pitch circle of the ball bearing 1, the diameter of the balls 4, the angle of the tip of the number 1 working arrow 41°43, the amount of insertion into the ball row, etc. 43 are rotated in a direction in which they are opened from each other, and the balls 4 are collected at the rear side of the front of the main body 21.

Next, the working arrows 41 and 43 are moved upward by the vertical movement mechanism 28 as shown in FIG. 2(d), and further as shown in FIG. 2(e).
As shown in , the first pulse motor 29 is reversed to move the first working arrow 41 in the opposite direction by θ°, and the second pulse motor 30 is rotated forward to move the second working arrow 43 by θ°. The work arrows 41 and 43 are respectively rotated in the reverse E direction, and the ball collecting process is completed in the same state as in FIG. 2(a).

Next, as shown in FIG.
is rotated forward to rotate the first working arrow 41 by 180' in the D direction, and at the same time, the second pulse motor 30 is rotated forward to rotate the second working arrow 43 by 180° in the reverse E direction. , position the work arrows 41 and 43 at the initial standby position for the ball equalization process behind the front of the main body 21.

Next, as shown in FIG. 4(a), for example, eight balls 4
Insert the work arrow 41.43 in the middle of In the illustrated embodiment, 8
There are an even number of pieces. ) and subtract the diameter of ball 4 from the quotient, insert the work arrow 41° 43 between balls 4 by a preset depth, and then remove the first pair of balls 4. Finish the equal distribution work.

Next, the working arrows 41.43 are moved upward, rotated in the D and E directions to open each other by the diameter of the balls 4, and the working arrows 41.43 are moved downward again to remove the equally distributed balls 4. and the next ball 4, the next ball 4 is moved by ε, and the equal distribution of the balls 4 is completed as shown in FIG. 4(b).

Similarly, by performing the upward movement, opening and downward movement of the work arrows 41 and 43, the equal distribution of the third pair of balls 4 is completed, resulting in the state shown in Fig. 4(C), and then the same steps are performed. Then, as shown in FIG. 4(d), the equal distribution of the fourth and final pair of balls 4 is completed. In this way, the process of equally distributing the balls of the ball bearing 1 is completed, and the ball bearing 1 that has been equally distributed is sent to the next process of attaching an upper cage (not shown).

The row of balls shown in FIG. 4 is for an even number of eight balls, but in the case of an odd number of balls, the work arrows 41 and 43 are moved from the initial standby position of the ball equalization process shown in FIG. D by the radius of
Then, as shown in Fig. 5, move the working arrows 41 and 43 downward to pinch the center ball 4 of the row of balls, and then move the next ball 4 at equal intervals. Then, as shown in Fig. 4, the work of evenly distributing the good ones one after another is carried out.

Next, a second embodiment will be explained.

In the first embodiment described above, both the ball collecting process and the ball equalizing process were performed using one ball equalizing device 20, but as shown in FIG. 6, two ball equalizing devices 20 were used. One station is used as the F station for the ball viewing process, and the other is the G station for the ball distribution process. The initial standby position for the ball collection process at the F station is the position of the work arrow 41.43 on the front side of the main body 21, while the initial standby position for the ball distribution process at the G station is the position of the work arrow 41.43. is rotated 180 degrees to be on the front and rear side of the main body 21.

The receiver of the main body 21 of each ball equalizing device 20 is mounted on the base portion 21b.
A conveyance means 48 is provided at the F station, and after performing the ball collecting process of the ball bearing 1 in the same manner as shown in FIG.
Execute the ball equal distribution process.

Further, the ball bearing 1 which has completed the ball equal distribution process may be covered with an upper cage 49 supplied by an upper cage supply means.

According to the second embodiment, the ball collecting process and the ball equalizing process of the ball bearing l are separated and performed simultaneously in parallel, so the ball collecting process and the ball equalizing process of the ball bearing l are performed in approximately half the time compared to the first embodiment. The ball distribution process can be completed.

Next, a third embodiment will be explained.

In the second embodiment described above, the ball equalizing device 20 executes the ball collecting process at the F station and the ball equalizing process at the G station, but in both processes, as in the first embodiment described above, The operation of rotating the pair of work arrows 41, 43 by 180 degrees in the same direction to perform the ball distribution process after the ball collection process is completed is not performed, and this 180' rotation operation is unnecessary.

Therefore, in the third embodiment, a pair of working arrows 41.4
Although not shown, there is a ball equalizing device 51 that only opens and closes the balls 3 and 3 and does not rotate together in the same direction.
One ball equalizing device 51 performs the ball collecting process, and the other ball equalizing device 51 performs the ball equalizing process.

That is, in FIG. 7, the ball equalizing device 51 has one pulse motor 52 attached to the upper surface of the case 23, and the -th shaft 53, which is the output shaft of this pulse motor 52, is connected to the case 23.
3 and extends downward, and a first bevel gear 54 is fixed to this -th shaft 53. Further, a coaxial and hollow second shaft 55 is attached to the outer periphery of the second shaft 53 so as to be rotatable with respect to the second shaft 53, and a second bevel gear 56 is fixed to the upper end of the second shaft 55. The second bevel gear 56 is driven by the first bevel gear 54 via the third bevel gear 57. Further, a first arm 39 is fixed to the lower end of the second shaft 53, and a first working arrow 41 is fixed to the first arm 39 with a screw 42 so that the radius can be adjusted.
Similarly, a second arm 40 is fixed to the lower end of the second shaft 55, and a second working arrow 43 is attached to the second arm 40 by a screw 44.
to adjust and fix the radius.

This pulse motor 52. -th axis 53. First bevel gear 54. Second axis 55. The second bevel gear 56 and the third bevel gear 57 constitute a turning mechanism 58.

Although not shown, the other configurations are the same as those shown in the first embodiment shown in FIG.

Two of these ball equalizing devices 51 are used, one for the ball collecting process and the other for the ball equalizing process.

The operation of this third embodiment is such that when the pulse motor 52 is reversed in the reverse B direction, the first working arrow 41 rotates in the D direction via the -th shaft 53 and the first arm 39, and the Third bevel gear 57. The second working arrow 43 rotates in the E direction via the second bevel gear 56 and the second arm 40, and the pair of working arrows 41 and 43 rotate in the direction in which they open from each other.

When the pulse motor 52 is rotated forward in the reverse B direction, the work arrow 4
1.43 rotate in the direction of closing each other and return to the original state.

Therefore, by using two ball equalizing devices 51, the - one can be used exclusively for the ball collecting process and the other can be used exclusively for the ball equalizing process.

According to this third embodiment, two ball distribution devices 51 are required, but the configuration of one device is simplified.

Next, a fourth embodiment will be described. In this fourth embodiment, like the third embodiment, the ball distribution device 60 can perform either the ball collection process or the ball distribution process. .

That is, in FIG. 8, one pulse motor 52 is mounted on the case 23, and two small gears 62 and 63 are fixed above and below the output shaft 61 of this pulse motor 52. The upper small gear 62 meshes with a large gear 63, and a -th shaft 65 is fixed to this large gear 63.
The shaft 65 extends below the case 23. Further, the lower small gear 63 meshes with a large gear 67 via an idle gear 66, and this large gear 67 is fixed to a second shaft 68 that is hollow and rotatably fitted to the outer periphery of the output shaft 61. be done. The second shaft 65 and the second shaft 68 form a double shaft, and the above-mentioned pulse motor 52. Output shaft 61. Small gears 62, 63
．． Large gear 64.67° -th axis 65. The idle gear 66 and the second shaft 68 constitute a turning mechanism 69. And then -
A first arm 39 is fixed to the lower end of the shaft 65, and a second arm 40 is fixed to the lower end of the second shaft 68. A first working arrow is fixed to the first arm 39 with a screw 42, and a second A second working arrow 43 is fixed to the arm 40 with a screw 44.

Although other configurations are not shown, they are similar to the configuration of the first embodiment shown in FIG.

The operation of this fourth embodiment is similar to that of the third embodiment, and when the pulse motor 52 is rotated forward in the B direction, the pair of working arrows 41 and 43 open in the D and E directions, and the pulse motor 52 is reversed in the reverse B direction, the working arrows 41 and 43 are rotated in the reverse and reverse E directions to close each other.

Two of these ball equalizing devices 60 are used, one of which is dedicated to the ball collecting process and the other to the ball equalizing process.

In the four embodiments described above, single-row ball bearings have been explained as examples, but the present invention can also perform the ball equalization process on double-row ball bearings of various name numbers.

That is, as shown in FIG. 11, a double-row ball bearing 5 that has undergone a ball inserting process in which a predetermined number of balls 4 are inserted between the outer ring 6 and the inner ring 7 in a double row is replaced with the ball bearing 5 shown in FIG. Using the equalizing device 20, first collect the balls in the lower row of the rows on one side and equally distribute the balls.
Next, a cage is fitted into the lower row for which the equal arrangement has been completed, and the equal arrangement of the balls and cage fitting for that row are completed. Next, the double-row ball bearing 5 is turned over, and the balls are collected, balls are evenly distributed, and cage-fitted in the same manner to complete the product of the double-row ball bearing 5.

In addition, the ball calculation arrangement ff shown in Figs. 6, 7, and 8
20, 51 and 60 can also carry out the process of equally distributing the balls of the double row ball bearing 5.

Further, in the embodiments described above, a pulse motor is used as an example of a rotary machine whose rotational angle can be determined by an external signal, but other types such as a servo motor and a hydraulic pulse motor can also be used.

Further, although a combination of the slide means 24 and a ball screw is illustrated as the vertical movement mechanism, a rack and pinion mechanism or a near motor may be used instead of the ball screw.

In addition, in the ball equal distribution process shown in FIG. 4, when the balls 4 are moved and equally distributed by equal intervals ε, the ball 4 is moved by ε only by the downward movement of the work arrows 41 and 43. However, this requires moving the working arrows 41.43 down so that the balls 4 move by a distance less than the equal spacing ε, and in addition, moving the working arrows 41.43 by a minute distance to D and E.
The balls 4 may be moved by rotating in the direction, so that the sum of the two distances becomes the equal interval ε.

Furthermore, a working arrow 41. with a trapezoidal cross section and an oblique tip.
43, rotate them in the direction of opening and closing each other,
In addition, the work arrows 41 and 43 are rotated together to perform circular motion, but using a conical work rod with a thin tip,
Due to the combined movement of the X-Y slide device, the work arrow 41.4
3 circular motions may be created.

[Effects of the Invention] As explained above, according to the method and device for equally distributing balls in a ball bearing according to the present invention, a pair of working arrows can be moved up and down, opened and closed relative to each other, and rotated together. , Perform the ball collecting process by opening the work arrows, and from the center of the lower row where the ball collection has finished, move the pair of work arrows downward, open each other, and move them upward, and repeat this action on the soil. Alternatively, by making a pair of working arrows movable up and down and able to open and close each other, and using two pairs of working arrows, one of which is used exclusively for collecting balls and the other for distributing balls equally, It is possible to flexibly arrange many types of ball bearings with different types of ball bearings, and it can also be applied to not only single row ball bearings but also double row ball bearings, and only one type of jig and tool is required. The jigs and tools are also inexpensive, and it is possible to achieve the effect of saving labor in the work of distributing the balls.

[Brief explanation of drawings]

Fig. 1 is a perspective view from the diagonal right front showing a first embodiment of the ball bearing equal distribution method and device according to the present invention, and Fig. 2 is a main part illustrating the ball collecting process of the embodiment. Perspective view,
FIG. 3 is a perspective view of the main part showing the initial standby state of the ball equal distribution process of the embodiment, FIG. 4 is a developed view of the ball bearing illustrating the ball uniform distribution process of the embodiment, and FIG. FIG. 6 is a perspective view showing the device of the second embodiment; FIG. 7 is a perspective view of the third embodiment; Figure 8 is a perspective view of the fourth embodiment, Figure 9 is a plan view and cross-sectional view showing the state of a general single row ball bearing after the ball insertion process, and Figure 10 is the single row ball bearing of Figure 9. Fig. 11 is a plan view and a sectional view showing the state of a general double-row ball bearing after the ball insertion process has been completed, and Fig. 12 is Fig. 11. A plan view and a sectional view showing the state where the ball equalization process of the double row ball bearing has been completed, No. 13
The figure is a perspective view for explaining a conventional ball equalization process for a single row ball bearing, and FIG. 14 is a perspective view for explaining another conventional ball equalization process. 1... Single row ball bearing, 2, 6... Outer ring, 3, 7...
Inner ring, 4... Ball, 5... Double row ball bearing, 20, 51.
60... Ball distribution device, 21... Main body, 22... Rail, 23... Case, 24... Slide means, 2
5...Pole screw, 26...Screw shaft, 27.29,
30.52...Pulse motor, 28...Vertical movement mechanism, 34,53.65...-th axis, 3B, 55.68
...Second axis, 39,40...Arm, 41.43.
...Working arrow, 45.58°69...Swivel mechanism.

Claims (4)

[Claims] (1) 1 that can be moved up and down, can be rotated forward and reverse in directions that open and close each other along the pitch circle of the ball bearing, and can be rotated together.
Using a pair of working arrows, insert the pair of closed working arrows into any position of the ball row of the ball bearing after the ball insertion process is completed, and rotate the working arrows forward and backward in the direction in which they open each other. Collect the
The pair of work arrows in a mutually closed state are inserted between the rows of balls after the ball collecting process is completed, and the work arrows are rotated forward and backward in the direction of opening each other and moved up and down to evenly distribute the balls. How to equally distribute balls in a bearing. (2) a main body, a pair of working arrows, an arm capable of fixing the pair of working arrows at arbitrary radii, and a vertical movement of the arm to which the pair of working arrows are fixed relative to the main body; a vertical movement mechanism that moves the pair of work arrows forward and backward in directions of opening and closing each other via the pair of arms;
A ball equalizing device for a ball bearing, comprising a rotating mechanism capable of rotating a pair of working arrows together via the pair of arms. (3) Using two pairs of working arrows that can be moved up and down and can be rotated forward and backward in the direction of opening and closing each other along the pitch circle of the ball bearing, the working arrow of one pair in the closed state is inserted into the ball. Insert the ball bearing into any position in the ball row of the completed ball bearing, and collect the balls by rotating the working arrows forward and backward in directions that open each other, and perform the other pair of work between the ball rows after the ball collecting process is completed. A method for equally distributing balls in a ball bearing, in which the balls are evenly distributed by inserting arrows, rotating the working arrows forward and backward in directions in which they open each other, and moving them up and down. (4) a main body, a pair of work arrows, an arm capable of fixing the pair of work arrows at arbitrary radii, and a vertical movement of the arm to which the pair of work arrows is fixed relative to the main body; and a turning mechanism that rotates the pair of work arrows forward and backward in the direction of opening and closing each other via the pair of arms, and performs either a ball collecting process or a ball equal distribution process. A ball equalizing device for ball bearings that does one thing.