JPH0832388B2 - Method and apparatus for assembling a cage assembly and outer ring of a Rzeppa joint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to an assembling method and an assembling apparatus applied when assembling a cage assembly to an outer ring in an automatic assembly machine for a Rzeppa joint. Regarding

(Prior Art) A Rzeppa joint 1 as shown in FIGS. 25 and 26 is used in a constant velocity joint portion of a driving force transmission system of an automobile. The Rzeppa joint 1 includes an outer ring 4 having a shaft portion 2 and a bowl-shaped portion 3, a cage 5 that is swingably housed inside the outer ring 4, and an inner ring 6 that is swingably housed inside the cage 5. And six balls 7 are provided. The ball 7 includes a ball groove 8 provided in the outer ring 4, an opening window 9 provided in the cage 5, and a ball groove 10 provided in the inner ring 6.
Is fitted to. An inner tooth-shaped center hole 11 is provided at the center of the inner ring 6. On the inner peripheral portion of the outer ring 4, projections 12 are provided at six locations in the circumferential direction at equal intervals, and the ball grooves 8 are formed between the projections 12, 12 adjacent to each other.

(Problems to be Solved by the Invention) In order to assemble the Rzeppa joint 1 including the outer ring 4, the cage 5, the inner ring 6 and the like as described above, some kind of "knack" is required, so automatic assembly by a machine is not possible. Was considered difficult. For example, when the cage 5 is assembled to the outer ring 4,
If the cage 5 is not inserted into the outer ring 4 from a specific direction in a specific posture, the cage 5 will be caught by a part of the outer ring 4 and will not enter properly. In the case of manual assembly, if the cage 5 is moved by trial and error, the cage 5 will be attached to the outer ring 4
However, it is surprisingly difficult to automate this assembly work by a machine, and by studying what behavior the cage 5 should be inserted with,
It was necessary to establish a smooth and reliable method of inserting the cage 5 into the outer ring 4.

Further, since the outer ring 4 and the cage 5 have a delicate dimensional relationship with each other, when the cage 5 is inserted into the outer ring 4 by a machine, the position of the cage 5 with respect to the outer ring 4, particularly the position in the circumferential direction, is not accurately regulated. Therefore, the cage 5 cannot be inserted into the outer ring 4. When inserting the cage assembly into the outer ring, as in the automatic assembly method described in JP-A-62-37519, the cage assembly is set above the outer ring in an upright position and inserted into the outer ring. At this time, drop the cage assembly straight so that the ridges on the inner surface of the outer ring pass through the pair of left and right opening windows of the cage, and then rotate the cage assembly by 30 ° around the axis of the outer ring while keeping the cage assembly upright. 90 cage assembly horizontally
It has also been proposed that the ball be placed in the ball groove by tilting it. However, as in this prior art, when the cage assembly is dropped, when the protrusions on the inner surface of the outer ring pass through the opening windows of the cage, the protrusions are formed inside the pair of left and right edges of the opening window of the cage after insertion. Since both side edges are located almost parallel to each other and the centers of the cage and the outer ring are easily displaced, rotating the cage assembly as it is around the axis of the outer ring causes the edges of the opening window to be aligned with the edges of the ridge. It may be caught by both parties.
In particular, since the outer peripheral surface of the cage is spherical, the edge of the opening window is not only sharp on the outer peripheral surface side of the cage, but also small burrs may be formed on the outside of the edge when processing the opening window. Therefore, there is a problem that when the cage assembly is rotated, the edges of the ridges and the edges of the opening window are easily caught by each other, which may cause the device to stop or become impossible to assemble.

Therefore, an object of the present invention is to provide an assembling method and an assembling device for a cage assembly in an automatic assembly machine for a Rzeppa joint, which allows a cage assembly including a cage and an inner ring to be smoothly and surely inserted into an outer ring. It is in.

[Structure of the Invention] (Means for Solving the Problems) The device of the present invention developed to achieve the above object is provided with a chuck that can be inserted into the center hole of the inner ring, and the chuck is centered around a horizontal axis. A head unit that is rotatably supported in a horizontal orientation and a downward orientation, a ball holding arm having a portion that can be fitted to a reference ball of a cage assembly held by the chuck, and this ball. A ball pressing mechanism that includes an actuator that drives the above-mentioned portion of the pressing arm in a direction in which it fits into the reference ball and in a direction in which it opens, and positions the cage assembly with respect to the chuck by pressing the reference ball by the ball pressing arm; , Having an actuator for moving the chuck up and down with respect to the outer ring With the cage assembly held by the reference ball facing upward and the cage standing upright, the cage assembly is dropped inside the outer ring in such a positional relationship that the opening window of the cage passes through the ridge on the inner surface of the outer ring. The cage insertion means and the chuck of the head unit can be driven by 90 ° in the horizontal direction and the downward direction, and the cage assembly in the standing posture inserted in the outer ring is installed in the outer ring inner surface of the convex edge and the cage opening. The head rotation means has an actuator that tilts the windows so that the edges of the windows diagonally intersect each other, and a rotation mechanism that rotates the outer ring relative to the cage assembly to a position where the reference ball corresponds to the ball groove of the outer ring. are doing.

(Operation) The method of assembling the cage assembly according to the present invention comprises the steps of holding the cage assembly at a predetermined position with respect to the chuck by inserting the chuck into the center hole of the inner ring and clamping the reference ball, and the cage assembly. With the cage of the cage upright with respect to the outer ring and with the ball facing upward in the clamped state, the cage assembly is dropped into the outer ring in such a positional relationship that the opening window of the cage passes through the ridge on the inner surface of the outer ring. Inserting step and tilting the cage assembly inserted in the outer ring obliquely with respect to the outer ring while the balls are clamped so that the edge of the ridge on the inner surface of the outer ring and the edge of the opening window of the cage intersect each other at an angle. Preliminary tilting process, and with the reference ball clamped, move the outer ring to the position where this ball corresponds to the ball groove of the outer ring. A ball groove aligning step of rotating the cage assembly relative to the cage assembly; and a cage tilting step of tilting the cage assembly in a direction in which the ball fits into the ball groove of the outer ring after releasing the clamped state with respect to the reference ball. ing.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

First, a method of assembling the cage assembly 13 and the outer ring 4 will be described with reference to FIGS. 1 to 9.

As shown in FIG. 1, the cage assembly 13 includes a cage 5 having an opening window 9, an inner ring 6 incorporated in the cage 5, and a ball 7. Ball 7
Is fitted in both the opening window 9 of the cage 5 and the ball groove 10 of the inner ring 6, so that the balls 7 regulate the relative positions of the cage 5 and the inner ring 6 in the circumferential direction.

As shown in FIG. 2, the cage assembly 13 is erected with respect to the outer ring 4, that is, the axis O′-O ′ of the cage 5 is orthogonal to the axis O—O of the outer ring 4 and the balls 7 are arranged.
And the cage assembly 13 is dropped into the outer ring 4 from above the outer ring 4 so that the pair of opening windows 9 and 9 are aligned on the horizontal line as shown in FIG. . Moreover, at this time, as shown in FIG.
The cage assembly 13 is dropped into the outer ring 4 in such a positional relationship that 9, 9 pass through the ridges 12, 12 of the outer ring 4.

As shown in FIG. 2, since the opening dimension H of the opening window 9 is slightly larger than the maximum width W of the ridge 12, the cage assembly 13 is dropped while maintaining the above-mentioned positional relationship, so that the cage 5 is moved to the outer ring 4. The cage assembly 13 can be smoothly inserted to the position shown in FIG. In this specification, the above series of steps is called a cage insertion step.

After the cage insertion process is completed, the cage assembly 13 is tilted in the direction in which the ball 7 is fitted into the ball groove 8 of the outer ring 4. However, if the cage 5 is tilted in the direction of arrow A in FIG. The end face 4a of 4 will be hit. Therefore, with respect to the cage assembly 13, the outer ring 4 is moved in the direction of arrow B by θ ₁
It is necessary to rotate by ＝ 30 °.

However, as shown in FIG. 5, the cage assembly 13 after the above-described cage insertion step has the ridges 12 positioned inside the opening window 9. That is, the cage 5 after insertion
Since the side edges 12a of the ridge 12 are positioned substantially parallel to each other inside the pair of left and right edges 9a, 9a of the opening window 9 and the outer peripheral surface of the cage 5 is spherical, Edge 9a
Is not only sharp, but also the edge 9a when processing the opening window 9.
Since a small burr may occur on the outer side of the outer ring, if the outer ring 4 is rotated in the direction B in this state, the ridges
The edge 12a of 12 easily catches on the edge 9a of the opening window 9, and the outer ring 4
May not be able to rotate.

Therefore, before rotating the outer ring 4 in the B direction, as shown in FIG. 6, the cage assembly 13 is inclined with respect to the outer ring 4 in the direction of the arrow C by an angle θ ₂ . By doing so, the edge 9a of the opening window 9 crosses the edge 12a of the ridge 12 at an angle, and the edge 9a of the opening window 9 rides on the edge 12a. The center of the outer peripheral spherical surface coincides with the center of the inner peripheral spherical surface of the outer ring 4, and when the cage assembly 13 is rotated around the axis of the outer ring 4, the edge 9a of the opening window 9 has a ridge.
Both can slide without being caught on the edge 12a of the twelve. The inclination angle θ ₂ may be an angle (within 45 °) such that the ball 7 does not hit the end surface 4a of the outer ring 4. In the illustrated example, θ ₂ = about 30 °. The above-described series of steps is the preliminary defeating step.

After the preliminary tilting step is completed, the outer ring 4 is relatively rotated by 30 ° in the direction of the arrow B while the cage assembly 13 is stopped, so that the ball 7 and the ball groove 8 are aligned with each other as shown in FIG. . The above is the ball groove aligning step.

Next, move the arrow D so that the cage assembly 13 is horizontal.
By tilting about 60 ° in the direction, the ball 7 fits into the ball groove 8 as shown in FIG. 8, and the cage assembly 13 fits into the outer ring 4 at a predetermined position. The above process is the cage crushing process.

After the cage defeating step is completed, the outer ring 4 is moved to the above-mentioned B
By rotating the outer ring 4 by 30 ° in the direction opposite to the direction (direction of arrow E in FIG. 4), the outer ring 4 returns to the original reference position as shown in FIG.

The series of steps described above can be performed by the apparatus 20 according to the embodiment of the present invention shown in FIGS. 10 to 24. The device 20 will be described below.

As shown in FIG. 10, the outer ring 4 is held by the outer ring holder 21 with the end surface 4a facing upward. Outer ring 4
Is a pair of ridges 12, 12 by a positioning mechanism (not shown).
Positioning is performed in advance in the circumferential direction so that is positioned in the direction orthogonal to the paper surface in FIG. Outer ring hold
21 is configured to be reciprocally rotated about the vertical axis within an angle range of 30 ° by a rotating mechanism 22 of which an example is shown in FIG.

On the other hand, the cage assembly 13 is held by the cage holder 25 with the end surface 5a of the cage 5 facing upward.
As shown in FIG. 14, a ball insertion portion 26 is provided in a part of the cage holder 25 in the circumferential direction. Ball insertion part 26
Is α with respect to the longitudinal axis xx of the cage holder 25.
It is facing diagonally by ＝ 30 °. Cage assembly 13
The one ball 7 held by is previously inserted into the opening window 9 of the cage 5 and the ball groove 10 of the inner ring 6 by a ball driving mechanism (not shown). Therefore, the ball 7 is located at the ball insertion portion 26. Each holder 21, 25 is attached to a turntable 27 that rotates intermittently in a horizontal plane.

A fixed base 30 is provided on the side of the turntable 27. A pair of left and right horizontally extending guide rails 31, 32 are provided on the fixed base 30. A slide unit 34 having a slide base 33 is horizontally reciprocally mounted on the guide rails 31 and 32. Slide unit
34 is a fluid direct acting actuator such as an air cylinder 35
The guide rails 31 and 32 can be moved forward and backward. The backward stroke end and the forward stroke end of the slide base 33 are regulated by stoppers 36 (only the backward stroke is shown). 37 and 38 are shock absorbers for absorbing shock.

A base 41 is erected on the slide base 33. A pair of left and right vertical guide members 42, 4 are provided on the front surface side of the base body 41.
Three are provided. An elevating unit 45 is provided to be vertically movable along the guide members 42 and 43. Lifting unit 45
Is driven up and down with a predetermined stroke by a fluid type direct acting actuator 46 such as an air cylinder. The lower limit stroke end of the lifting unit 45 is restricted by the stopper 47. The elevating actuator 46 is used as a cage inserting means for inserting the cage assembly 13 into the outer ring 4 in the cage inserting process.

The elevating unit 45 has a base groove body 50 extending in the horizontal direction, and a pair of left and right leg members 51, 52 extending downward are provided on the lower surface side of the base structure 50. As shown in FIG. 11, the leg members 51 and 52 are provided with horizontal bearings 53 and 54, and the head unit 5 is provided by these bearings 53 and 54.
5 is rotatably supported about a horizontal axis.

The head unit 55 includes a pair of left and right shafts 58 and 59 rotatably supported by bearings 53 and 54, an inverted U-shaped bridge structure 60 provided between the shafts 58 and 59, and the bridge structure 60. The index plunger 61 is configured to include a chuck mechanism 62 that is detachably attached. The chuck mechanism 62 includes a shaft portion 64 inserted into the hole 63 of the bridge structure 60 and a chuck base attached to the shaft portion 64.
65, and a shack 67 including a pair of chuck claws that are biased in the opening direction by a compression spring 66. When the chuck 67 is inserted into the center hole 11 of the inner ring 6, the spring 66 bends to hold the inner ring 6 by the chuck 67. The center C _{0 of the} chuck 67 is on the centerline of the axes 58,59.

As shown in FIG. 10 and the like, lower arms 70 are attached to the shafts 58 and 59, respectively. The lower arm 70 is connected to the lower end of an interlocking member 71 extending in the vertical direction. Interlocking member
The upper end of 71 is connected to the upper arm 72. The base of the upper arm 72 is fixed to the drive shaft 73. This drive shaft
The 73 is adapted to be rotated by a direct acting actuator 74 such as an air cylinder. That is, when the rod 75 of the actuator 74 moves to the extension side, the upper arm 72
When the lower arm 70 is rotated and lowered and the interlocking member 71 is lowered, the lower arm 70 is rotated and lowered, and the head unit 55 is rotated to the position shown in FIG. 12, that is, the chuck 67 is turned downward. When the rod 75 of the actuator 74 moves to the contraction side, the head unit 55 is rotated to the position shown in FIG. 10, that is, the chuck 67 is turned to the horizontal position.

In this way, the head unit 55 rotates about the horizontal axis of the chuck 67 within an angle range of 90 °. This rotation range is restricted by the stoppers 67 and 77 shown in FIG. The actuator 74, the arms 70 and 72, the interlocking member 71, and the like described above form a head rotating means 78. The chuck mechanism 62 can be removed from the bridge structure 60 by pulling the index plunger 61.

As shown in FIGS. 16 and 17, the head unit 55 is provided with a ball pressing mechanism 81. This mechanism
81 is a pair of left and right shafts 82, 83 provided on the bridge structure 60.
Rocking links 84, 85 that rotate around the center, a connecting link 86 that connects the tip ends of these rocking links 84, 85 to each other, a cam follower 87 provided on this connecting link 86, and one rocking link 84. The ball holding arm 88 and the like connected to the base of the. A recess having a shape in which the ball 7 is just fitted to the end surface of the end member 89 provided at the tip of the arm 88.
90 is provided. The ball pressing arm 88 can rotate in a range from the unclamp position shown in FIG. 17 to the clamp position shown in FIG.

The cam follower 87 is engaged with the guide rail 95. The guide rail 95 extends in the front-rear direction of the head unit 55 as shown in FIG.
It has an upwardly convex arc shape in a side view. Both front and rear ends of the guide rail 95 are fixed to a pair of front and rear slide shafts 96, 97 extending in the horizontal direction. The slide shafts 96, 97 are supported by bearings 89, 99 so as to be movable in the axial direction.

Each slide shaft 96, 97 is connected to the actuator 100 (first
(Only part of which is shown in FIG. 11). That is, as shown in FIG. 16, when the slide shafts 96, 97 move to the left in the figure, the end member 89 of the ball pressing arm 88 rotates in the direction away from the ball 7 (unclamping direction), As shown in the figure, when the slide shafts 96, 97 move to the right in the drawing, the end member 89 of the ball pressing arm 88 rotates in the direction for pressing the ball 7 (clamping direction).

Next, the operation of the embodiment device 20 having the above-described configuration will be described.

As shown in FIG. 10, the outer ring 4 and the cage assembly
While 13 and 13 are respectively held by the holders 21 and 25, they are transferred to the cage assembly assembling device 20. Grease is previously applied to the outer peripheral portion of the cage 5.

As shown in FIG. 12, the head unit 55 is rotated by the actuator 74 so that the chuck 67 faces downward, and the slide unit 34 is moved forward by the horizontal driving actuator 35. As a result, the chuck 67 is positioned directly above the cage holder 25 in a posture in which it faces downward. The elevating actuator 46 operates and the elevating unit 45 descends, whereby the head unit 55 descends. As a result, the chuck 67 is inserted into the center hole 11 of the inner ring 6 as shown in FIG. 20, and the inner ring 6 is held by the chuck 67.

Further, when the ball pressing actuator 100 operates, the ball pressing arm 88 moves in the clamping direction, so that the ball 7 is clamped as shown in FIGS. 18 and 19. By doing so, the cage assembly 13 is held at a predetermined position with respect to the head unit 55.

In the above state, the lifting unit 45 is raised by the actuator 46, and the head rotation actuator 74 is operated to rotate the head unit 55 by 90 °, whereby the cage assembly 13 is vertically moved as shown in FIG. It becomes a standing posture.

In this way, the cage assembly 13 is taken out from the cage holder 25, the horizontal driving actuator 35 is operated toward the contraction side, and the slide unit 34 is retracted to a predetermined position, so that the cage assembly 13 is directly above the outer ring 4.
Are transferred to the posture shown in FIG. Moreover, the cage assembly 13 is held at a position such that the pair of opening windows 9 and 9 are aligned on the horizontal line and the opening windows 9 and 9 are located directly above the ridges 12 and 12 of the outer ring 4. The above is the setting process of the cage assembly 13.

After that, the raising / lowering unit 45 is lowered by a predetermined amount by the raising / lowering actuator 46, so that the cage assembly 13 is dropped inside the outer ring 4 as shown in FIG. The above is the cage insertion process. In this cage inserting step, the cage ring 13 is accurately held at a predetermined position by clamping one reference ball 7 previously assembled in the cage assembly 13 by the ball pressing mechanism 81, so that the outer ring 4 Therefore, the cage assembly 13 can be smoothly inserted.

After the above steps, the head unit 55 is tilted by about 30 ° as shown in FIG. This step corresponds to the preliminary tilting step.

After that, by the outer ring rotating mechanism 22 (see FIG. 15),
By rotating the outer ring 4 about the vertical axis in the direction B in FIG. 4 by 30 °, the position of the ball groove 8 of the outer ring 4 is aligned with the position of the ball 7. This is the ball groove alignment process.

Prior to the ball groove aligning step, the opening window 9 is inclined about 30 ° with respect to the ridge 12 in the preliminary tilting step, and the edge 9a of the opening window 9 and the edge 12a of the ridge 12 partially overlap each other. Therefore, when the outer ring 4 is rotated, the edge 9a of the opening window 9 does not get caught on the edge 12a of the ridge 12. Therefore, the outer ring 4 and the cage assembly 13 can be smoothly rotated relative to each other.

After the ball groove aligning step is completed, the ball pressing actuator 100 is driven in the unclamping direction,
The ball retainer arm 88 moves away from the ball 7 as shown in FIGS. 16 and 17. After that, the cage assembly 13 is tilted horizontally inside the outer ring 4 by the head rotation actuator 74 as shown in FIG. The above is the cage down process.

After that, the elevating actuator 46 moves toward the contracted side, and the head unit is integrated with the elevating unit 45.
55 is raised. At this time, the outer ring 4 is fixed to the outer ring holder 21 by a clamp mechanism (not shown), and the cage assembly 13 is attached to the outer ring 4 in a non-removable manner. While the spring 66 of the chuck 67 flexes, the chuck 67 comes out of the center hole 11 of the inner ring 6. Further, the outer ring 4 returns to the original reference position by rotating the outer ring 4 by 30 ° in the E direction shown in FIG.

As a series of cage assembly assembling cycles are completed in this way, the holders 21 and 25 holding the new outer ring 4 and cage assembly 13 move to the bottom of the apparatus 20 of the present embodiment, as shown in FIG. Return to the initial state,
The new cage assembly assembly cycle is repeated.

EFFECTS OF THE INVENTION According to the present invention, when the cage assembly of the Rzeppa joint is assembled to the outer ring, the reference ball is clamped. Therefore, the cage is inserted until just before the reference ball is inserted into the ball groove of the outer ring. The position of the assembly can be precisely regulated, and the cage does not get caught on the ridge on the inner surface of the outer ring when rotating the ball around the axis of the outer ring of the cage assembly as a pre-step of fitting the ball into the ball groove. As a result, the cage assembly can be assembled smoothly and surely. Therefore, it is possible to not only mechanize the work of assembling the cage assembly to the outer ring, which has been impossible in the past, but also to avoid the occurrence of troubles such as temporary stop of the device and improper assembly due to the cage being caught by the outer ring.

[Brief description of drawings]

The drawings show one embodiment of the present invention, FIG. 1 is a perspective view of a cage assembly, FIG. 2 is a front view showing a partial cross-section of the cage assembly before it is inserted into an outer ring, and FIG. 3 is a cage assembly. FIG. 4 is a side view showing a partial cross section of a state in which the cage is being inserted into the outer ring, FIG. 4 is a plan view showing a state in which the cage assembly is inserted into the outer ring, and FIG. 5 is a sectional view taken along the line VV in FIG. , FIG. 6 is a sectional view showing a state where the cage assembly is tilted in the preliminary tilting step, FIG. 7 is a sectional view showing a state where the outer ring is rotated by 30 °, and FIG. 8 is a sectional view showing a state where the cage assembly is tilted, 9 is a cross-sectional view showing a state in which the outer ring is returned to the reference position, FIG. 10 is a side view showing a partial cross-section of the device of one embodiment of the present invention, and FIG. 11 is a view showing the device shown in FIG. Fig. 12 shows the head unit moved to the cage holder. Side view of a state in partial cross-section, the
13 is a side view showing the stopper portion, FIG. 14 is a plan view of the cage holder as seen from the direction of aa line in FIG. 10, FIG. 15 is a front view of the outer ring rotating mechanism, and FIG. 16 is a head unit. FIG. 17 is a rear view showing the head unit in a partial cross section,
Fig. 18 is a front view of the head unit with the balls clamped, Fig. 19 is a rear view showing the head unit with the balls clamped in a partial cross section, and Fig. 20 is the chuck inserted into the cage assembly. FIG. 21 is a sectional view showing a state in which the head unit is rotated, FIG. 22 is a sectional view showing a state in which the cage assembly is inserted into the outer ring, and FIG. FIG. 24 is a sectional view showing a state where the cage assembly is laid down, FIG. 25 is a perspective view of a Rzeppa joint, and FIG. 26 is an exploded perspective view of the Rzeppa joint. 1 ... Rzeppa joint, 4 ... Outer ring, 5 ... Cage, 6 ... Inner ring, 7 ... Ball, 8 ... Ball groove, 9 ...
… Opening window, 10… Ball groove, 11… Center hole, 12… Projection, 13… Cage assembly, 20… Cage assembly assembly device, 21… Outer ring holder, 22… Outer ring rotation mechanism, twenty five
...... Cage holder, 35 ...... Horizontal drive actuator, 45 ...... Elevation unit, 46 ...... Elevation actuator (cage insertion means), 55 ...... Head unit, 67 ...... Chuck, 74 ...... Head rotation actuator , 78 ...... Head rotation means, 81 …… Ball retainer mechanism, 95 …… Guide rail, 100 …… Ball retainer actuator.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Hamabe Lighting 5-3-8, Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (72) Inventor, Yuichi Hazaki, No. 1 Nakasiri, Hashime-cho, Okazaki-shi, Aichi Mitsubishi Motors Engineering Co., Ltd. Okazaki Plant (56) References JP 62-37519 (JP, A)

Claims (2)

[Claims] 1. A cage assembly comprising a cage having an opening window, an inner ring incorporated in the cage, and one reference ball fitted in both the opening window of the cage and the ball groove of the inner ring, as an outer ring. A method for assembling, comprising the steps of holding a cage assembly in place with respect to the chuck by inserting a chuck into the center hole of the inner ring and clamping the reference ball; A cage insertion step of dropping the cage assembly into the outer ring in a positional relationship such that the opening window of the cage passes through the ridges on the inner surface of the outer ring in the posture of standing upright with respect to the outer ring and with the ball facing upward, , The cage assembly inserted in the outer ring is tilted at an angle to the outer ring while the balls are clamped, so that the inner surface of the outer ring is convex. Pre-tilt step of crossing the edge of the cage and the edge of the opening window of the cage with each other at an angle, and with the reference ball clamped, place the outer ring relative to the cage assembly until the ball corresponds to the ball groove of the outer ring. And a cage groove tilting step of tilting the cage assembly in a direction in which the balls fit into the ball grooves of the outer ring after releasing the clamped state with respect to the reference ball. Assembling the cage assembly and outer ring of the perjoint. 2. A cage assembly comprising a cage having an opening window, an inner ring incorporated in the cage, and one reference ball fitted in both the opening window of the cage and the ball groove of the inner ring, as an outer ring. A device for assembling, comprising a chuck (67) that can be inserted into the center hole of the inner ring, and the chuck (6) centered on a horizontal shaft (58, 59).
7) The head unit (55), which is rotatably supported in a horizontal orientation and a downward orientation, can be fitted to the reference ball of the cage assembly held by the chuck (67). Actuator (100) for driving the ball holding arm (88) having a flat portion (89) and the above-mentioned portion (89) of the ball holding arm (88) in the fitting direction and the releasing direction with respect to the reference ball.
A ball pressing mechanism (8) for positioning the cage assembly with respect to the chuck (67) by pressing the reference ball with the ball pressing arm (88).
1) and a posture in which the cage assembly having an actuator (46) for raising and lowering the chuck (67) with respect to the outer ring and held by the chuck (67) has the reference ball facing upward and the cage stands upright. The cage insertion means for dropping the cage assembly into the outer ring in such a positional relationship that the opening window of the cage passes through the ridge on the inner surface of the outer ring, and the chuck (67) of the head unit (55) in the horizontal direction and the lower direction. Actuator (74) capable of being driven by 90 ° in the direction of the arrow and tilting the cage assembly in the standing posture inserted in the outer ring to an angle at which the edge of the ridge on the inner surface of the outer ring and the edge of the opening window of the cage intersect each other at an angle. A head rotating means having a rotating mechanism (22) for rotating the outer ring relative to the cage assembly to a position where the reference ball corresponds to a ball groove of the outer ring, Cage assembly and assembling device of the outer ring of Tsue' path joint, characterized by comprising.