JP2010214538A - Bearing device, system for manufacturing the same, and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for manufacturing a bearing device which does not hinder rotation of a retainer when assembling the bearing device with the retainer by inserting a plurality of rotary members from one direction intersecting the outer circumferential surface of the retainer. <P>SOLUTION: The system 1 for manufacturing the bearing device is equipped with: a support means 52 being arranged outside an inner support member W1, supporting a cylindrical retainer W4 with a plurality of holes W7 in a circumferential direction to be rotatable around the axis C1 of the inner support member, and having a chute part 52C extending in an insertion direction E1 toward the hole; a rotating means for rotating the retainer around the axis of the inner support member in a predetermined direction B; and a built-in member 71 which presses the plurality of the rotary members arranged at the chute part to the retainer and allows the plurality of the rotary members to be built into the plurality of the holes. The built-in member presses the rotary members through a retreating member which retreats in the opposite direction of the insertion direction when receiving a predetermined drag force in the opposite direction of the insertion direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bearing device having a plurality of rotating members disposed therein, a bearing device manufacturing system, and a bearing device manufacturing method.

  In the conventional needle bearing manufacturing system, the number of needles (rotating members) necessary for assembling one needle bearing (bearing device) is preliminarily arranged in an annular arrangement that is assembled to the needle bearing using a dedicated alignment device. A plurality of needles that are arranged and arranged in an annular shape are collectively inserted between the roller inner ring (inner support member) and the roller outer ring from the axial direction of the needle bearing (see, for example, Patent Document 1).

JP 2002-242948 A

However, in the needle bearing manufacturing system described in Patent Document 1, in order to manufacture a needle bearing having a retainer that supports the adjacent needles so that they do not come into contact with each other, a hole for needle assembly provided in the retainer is provided. It was necessary to provide a notch extending in the axial direction of the needle bearing, and to incorporate the needle into the hole through the notch. However, the needle bearing manufactured by this manufacturing system has a problem that the needle falls out from the notch of the retainer after assembling.
In order to solve the above problem, with the retainer assembled to the inner ring (inner support member) of the needle bearing, the needle is pressed against the outer peripheral surface of the retainer from one direction intersecting the outer peripheral surface of the retainer. A needle was inserted into a hole provided in the outer peripheral surface. In order to effectively insert the needle, the needle is inserted while rotating the retainer about its axis, but the needle already incorporated in the hole of the retainer is pressed against the outer peripheral surface of the retainer. In some cases, rotation of the retainer may be impeded.

  The present invention has been made in view of such problems, and when a bearing device having a retainer is inserted and assembled from a single direction intersecting the outer peripheral surface of the retainer, the retainer rotates. The present invention provides a bearing device manufacturing system, a bearing device manufacturing method, and a bearing device manufactured by the bearing device manufacturing method.

In order to solve the above problems, the present invention proposes the following means.
The bearing device manufacturing system of the present invention is disposed outside the inner support member and supports a cylindrical retainer having a plurality of holes in the circumferential direction so as to be rotatable about the axis of the inner support member. Support means provided with a chute portion extending in the insertion direction toward the hole, and rotation means for rotating the retainer in a predetermined direction around the axis of the inner support member;
In a manufacturing system of a bearing device, the assembly member is configured to press the plurality of rotating members arranged in the chute portion against the retainer and incorporate the plurality of rotating members into the plurality of holes, and the assembly member is the insertion member When a predetermined drag is applied in a direction opposite to the direction, the rotating member is pressed through a retracting means that retracts in a direction opposite to the insertion direction.

  Further, in the manufacturing method of the bearing device according to the present invention, a cylindrical retainer that is disposed outside the inner support member and has a plurality of holes in the circumferential direction can be rotated around the axis of the inner support member. A member supporting step for supporting the retainer, rotating the retainer in a predetermined direction around the axis of the inner support member, and pressing a plurality of rotating members against the outer peripheral surface of the retainer from the insertion direction into the hole, A rotating member incorporating step of incorporating the plurality of rotating members into the plurality of holes, and the rotating member pressed against the outer peripheral surface of the retainer from the insertion direction is incorporated into the holes. Further, when a predetermined drag is applied from the rotating member in a direction opposite to the insertion direction, the rotating member pressed against the outer peripheral surface of the retainer from the insertion direction is inserted. It is characterized by retracting in a direction opposite to the direction.

According to this invention, even if the rotating member already incorporated in the hole of the retainer comes into contact with the rotating member pressed against the outer peripheral surface of the retainer by the rotation of the retainer, the hole of the retainer is already driven by the driving force for rotating the retainer. The rotating member pressed against the outer peripheral surface of the retainer can be retracted in the direction opposite to the inserting direction by the component in the direction opposite to the inserting direction of the drag force received from the rotating member incorporated into the rotating member.
Therefore, the contact between the rotating member inserted into the hole of the retainer and the rotating member pressed against the outer peripheral surface of the retainer can be eliminated, and the rotation of the retainer can be prevented from being inhibited.

The insertion direction is more preferably a direction orthogonal to the axis of the inner support member.
According to this invention, even when the support means is replaced and a bearing device having a different outer diameter is manufactured, the rotating member is inserted from the direction orthogonal to the axis of the inner support member. For this reason, the chute part provided in the support means can be extended in a direction perpendicular to the axis of the inner support member, can have a simple shape without an inclined surface, and the outer diameter of the bearing device to be manufactured can be changed. It is possible to share the parts used in the support means.

The insertion direction is more preferably a direction parallel to the horizontal plane.
According to this invention, the influence of gravity acting on the rotating member pressed against the outer peripheral surface of the retainer can be suppressed, and the force with which the rotating member is pressed against the outer peripheral surface of the retainer can be stabilized.

Further, the pressing means for generating the driving force for pressing the rotating member may be configured to press the retracting means in the insertion direction via a transmission member provided with a direction changing portion extending in a direction opposite to the insertion direction. preferable.
According to the present invention, the pressing means and the retracting means can be compactly arranged in the insertion direction, so that the bearing system manufacturing system can be downsized as a whole.

The bearing device of the present invention is preferably manufactured by the method for manufacturing a bearing device described above.
According to the present invention, when the bearing device is manufactured, even if the rotating member already inserted into the hole of the retainer comes into contact with the rotating member pressed against the outer peripheral surface of the retainer, the rotating member built into the hole is not The rotating member pressed from the insertion direction can be retracted in the direction opposite to the insertion direction. Accordingly, the rotating member inserted into the hole portion of the retainer and the rotating member pressed against the outer peripheral surface of the retainer can strongly come into contact with each other, so that scratches generated on the rotating member can be suppressed, and the rotation of the manufactured bearing device is further stabilized. be able to.

According to the bearing device manufacturing system and the bearing device manufacturing method of the present invention, when the bearing device including the retainer is assembled by inserting and rotating a plurality of rotating members from one side of the bearing device, rotation of the retainer is hindered. Can be suppressed.
In addition, according to the bearing device of the present invention, it is possible to suppress damage to the rotating member by suppressing the rotation of the retainer during manufacture, and to further stabilize the rotation of the bearing device.

It is a block diagram of the manufacturing system of the cam follower of embodiment of this invention. It is a block diagram regarding control of the manufacturing system of the cam follower of the embodiment of the present invention. It is principal part explanatory drawing of the manufacturing system of the cam follower of embodiment of this invention. It is a perspective view of the cam follower which does not use the retainer manufactured with the manufacturing system of the cam follower of the embodiment of the present invention. It is sectional drawing of the cutting line AA in FIG. It is explanatory drawing which shows the effect | action of the retracting means of embodiment of this invention. It is explanatory drawing which shows the effect | action of the retracting means of embodiment of this invention. It is a flowchart of the manufacturing method of the cam follower of embodiment of this invention. It is explanatory drawing which shows the process of the manufacturing method of the cam follower of embodiment of this invention. It is explanatory drawing which shows the process of the manufacturing method of the cam follower of embodiment of this invention. It is explanatory drawing which shows the process of the manufacturing method of the cam follower of embodiment of this invention.

Hereinafter, a system for manufacturing a bearing device according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following embodiment, a case where the bearing device is a cam follower will be described as an example. However, the bearing device is not limited to the cam follower, and may be a needle bearing, a roller bearing, or the like.
FIG. 1 is a block diagram of a cam follower manufacturing system, FIG. 2 is a block diagram relating to control of the cam follower manufacturing system, and FIG.
As shown in FIG. 1, the cam follower manufacturing system 1 is an assembly device for assembling a predetermined number of needles necessary for assembling one cam follower from a large number of needles stored in a needle supply device 31 by a separating device 4 and a counting device 6. 5, and an operator operating the cam follower manufacturing system 1 supplies a stud and an outer ring to the assembling apparatus 5 one by one, whereby the assembling apparatus 5 continuously manufactures the cam follower.
As shown in FIG. 2, the cam follower manufacturing system 1 controls a valve switching unit 21 that switches the pressure of compressed air that generates a driving force, a first end rotation motor 51c described later, and various cylinders described later. And a control unit 22 controlled by the valve switching unit 21.

The cam follower W manufactured by the cam follower manufacturing system 1 of the present embodiment, as shown in FIG. 4, is arranged on the outside of the stud W1 having a predetermined axis C1 and the stud W1, and has a plurality of holes in the circumferential direction. A cylindrical retainer W4 provided with a portion W7, a plurality of needles W2 incorporated in a plurality of holes W7 of the retainer W4, and a cylindrical outer ring W3 that supports the plurality of needles W2 and the retainer W4 from the outside. .
The stud W1 corresponds to an inner support member in the claims, and the needle W2 corresponds to a rotating member.

  As shown in FIGS. 1 and 3, the needle supply device 31 continuously conveys a plurality of accumulated needles W2 in the first conveyance direction D1 along the axis thereof, and places the needles in the standby position P1 of the separation device 4. W2 is supplied one by one.

As shown in FIG. 3, the separation device 4 includes an upper support base 42 provided with an upper support surface 42a for supporting the needle W2 supplied to the standby position P1 from below, and the needle W2 supplied to the standby position P1. The separation rod 41 that conveys to the supply position P2, and the separation rod 41 in the second conveyance direction E1 along the upper support surface 42a and the second upstream direction E2 that is opposite to the second conveyance direction E1. A reciprocating transfer cylinder 43.
The second transport direction E1 and the second upstream direction E2 are set in a direction orthogonal to the first transport direction D1. Further, during normal use, the upper support surface 42a and the lower support surface 61a described later are arranged in parallel to the horizontal plane, and the first transfer direction D1, the second transfer direction E1, the second upstream direction E2, and the later described. The first upstream direction D2 to be performed is a direction along the horizontal plane.
In addition, a stepped portion 42b that goes down to the lower support surface 61a is provided at the supply position P2 of the upper support 42.
The separating rod 41 is provided with a pressing surface 41a that presses the needle W2 in the second transport direction E1 and a flange 41b that prevents the needle W2 from moving away from the pressing surface 41a. The needle W2 supplied to the standby position P1 is reliably surrounded by the pressing surface 41a and the flange 41b provided on the separating rod 41 that moves in the second transport direction E1 by the transport cylinder 43 to the supply position P2. It is conveyed and falls on the lower support surface 61a at the stepped portion 42b provided at the supply position P2. At this time, the needle W2 is detached from the separating rod 41 and supplied to the counting device 6.

The counting device 6 includes a lower support base 61 provided with a lower support surface 61a for supporting the needle W2 supplied to the supply position P2 from below, and the needle W2 supplied to the supply position P2 alone in the second transport direction E1. , A biasing plate 63 that urges a plurality of needles W2 supplied to the lower support surface 61a in the second transport direction E1, and the number required to assemble one cam follower W. And an elevator 64 that counts and conveys the needle W2.
The lower support base 61 is provided with a pair of side walls 61b extending in the second transport direction E1 and arranged in parallel in the first transport direction D1 at a predetermined interval, and is supplied to the supply position P2. The needle W2 is guided in the second transport direction E1.
Further, in the present embodiment, the upper support base 42 and the lower support base 61 have different configurations and are arranged adjacent to each other, but the upper support base 42 and the lower support base 61 may be integrated.
When the needle W2 is transported to the supply position P2 by the separation rod 41, the needle W2 previously transported to the supply position P2 is transported while being pushed in the second transport direction E1. The weight 62 causes the second conveyance of the needle W2 on the lower support surface 61a to bring the needle W2 on the lower support surface 61a pushed in the second conveyance direction E1 by the separating rod 41 toward the second upstream direction E2. It arrange | positions at the direction E1 side. Then, each time the separation rod 41 pushes the needle W2 previously transported to the supply position P2 in the second transport direction E1, the weight 62 moves together with the needle W2 in the second transport direction E1.

The urging plate 63 urges a part of the plurality of needles W2 supplied on the lower support surface 61a by the urging means (not shown) in the second transport direction E1 and presses the urging plate 63 against the wall 64b of the elevator 64.
The elevator 64 is provided with a counting hole 64a penetrating in the second conveying direction E1, and a predetermined number, for example, 15 needles W2 necessary for assembling one cam follower W are accommodated in the counting hole 64a. The dimension of the counting hole 64a is set as possible.
The elevator 64 reciprocates in the vertical direction F in the range from the descending end position Q1 to the ascending end position Q2 shown in FIG. When the elevator 64 is disposed at the rising end position Q2, the urging plate 63 supplies the needle W2 into the counting hole 64a while moving in the second transport direction E1.
On the other hand, when the elevator 64 is moved from the rising end position Q2 by the elevator drive cylinder 65, the urging plate 63 cannot be moved in the second transport direction E1 by the wall 64b of the elevator 64 and is stopped.

  When the sensor (not shown) detects that the number of needles W2 arranged from the urging plate 63 to the wall 64b is less than the number required to assemble one cam follower W, the controller 22 The urging plate 63 is raised once so as not to interfere with the needle W2 by the plate moving device that does not, and the weight 62 is raised by the weight moving device (not shown). Then, after the urging plate 63 is arranged at the plate return position R from above by the plate moving device, the urging plate 63 again urges the needle W2 on the second transport direction E1 side in the second transport direction E1. . Further, the control unit 22 causes the weight moving device to place the weight 62 so as to come into contact with the needle W2 disposed on the second upstream direction E2 side from the plate return position R from the second transport direction E1 side.

FIG. 5 is a cross-sectional view taken along line AA in FIG. In FIG. 5, a stud W1, a retainer W4, and an outer ring W3 are set in the assembling apparatus 5, and a predetermined number of needles W2 are accommodated in a counting hole 64a provided in the elevator 64.
As shown in FIGS. 3 and 5, the assembling apparatus 5 is capable of rotating the retainer W4 about the axis C1 of the stud W1 in the rotation direction B and the retainer W4 about the axis C1 of the stud W1. A set jig 52 supported on the jig, a jig moving means 53 for dividing and joining the set jig 52, a rotating member incorporating means 7 for incorporating the needle W2, an outer ring assembling means 55 for assembling the outer ring W3, and a rotating means. 51, an assembly base 56 for fixing the jig moving means 53 and the outer ring assembling means 55.
The setting jig 52 corresponds to the supporting means in the claims, and the outer ring assembling means corresponds to the outer member assembling means.
The rotating means 51 rotates the stud W1 to rotate the retainer W4 assembled to the stud W1 in the rotation direction B around the axis C1 of the stud W1.

As shown in FIG. 5, the rotating means 51 includes a first end support 51a configured in a substantially bottomed cylindrical shape that supports the tip end side of the stud W1, and a first end support 51a in the rotation direction B. A first end rotation motor 51c that generates a driving force to rotate, a second end support 51d configured in a substantially bottomed cylindrical shape that supports the proximal end side of the stud W1, and a second end support 51d. A support spring 51e that biases and supports the first upstream direction D2, which is opposite to the first transport direction D1, a bearing 51f that rotatably supports the second end support 51d, and a support spring 51e. And a second end drive cylinder 51b for reciprocally moving the second end support 51d in the first upstream direction D2 through the assembly base 56 to which is fixed.
The first end rotary motor 51c and the bearing 51f are also fixed to the assembly base 56, and the second end drive cylinder 51b is supported by support means (not shown).

As shown in FIGS. 3 and 5, the setting jig 52 includes a first jig 52 a and a second jig 52 b. The first jig 52a and the second jig 52b have the same diameter as the inner circumferential surface W6 of the outer ring W3, and support an inner circumference that supports approximately half the length of the plurality of needles W2 in the axis C1 direction of the stud W1. Each has surfaces 52d and 52e. The inner peripheral surface 52d of the first jig 52a and the inner peripheral surface 52e of the second jig 52b have a common axis line C2, and the axis C2 includes the first end support 51a and the first end. It corresponds to the axis of each of the partial rotation motor 51c, the second end support 51d, the bearing 51f, and the second end drive cylinder 51b.
The first jig 52a and the second jig 52b are provided with a chute portion 52c for incorporating the needle W2. The chute 52c extends in the insertion direction H toward the hole W7 of the retainer W4. The insertion direction H is set to be perpendicular to the axis C1 of the stud W1 and parallel to the horizontal plane, that is, parallel to the second transport direction E1.

  The jig moving means 53 includes a first jig cylinder 53a and a second jig that reciprocate the first jig 52a and the second jig 52b in the vertical direction F along a linear guide (not shown) extending in the vertical direction F. A jig cylinder 53b is provided. The first jig 52a and the second jig 52 can be divided and joined by the first jig cylinder 53a and the second jig cylinder 53b.

As shown in FIG. 3, the rotating member assembling means 7 includes an assembling rod 71 for assembling a plurality of needles W2 into a plurality of holes W7 of the retainer W4, and an assembling rod 71 coupled to the assembling rod 71 in the second upstream direction E2. Retracting means 72 for retracting the retracting means, a built-in base 73 for supporting the retracting means 72, and a built-in cylinder 74 for reciprocating the built-in base 73 in the second transport direction E1 and the second upstream direction E2.
The built-in rod 71 corresponds to the built-in member in the claims, the built-in base 73 corresponds to the transmission member, and the built-in cylinder 74 corresponds to the pressing means.
The built-in bar 71 is arranged along the insertion direction H, and reciprocates in the insertion direction H to incorporate the plurality of needles W2 into the plurality of holes W7 of the retainer W4.
The built-in base 73 is provided with a direction changing portion 73c extending in the second upstream direction E2 which is the direction opposite to the insertion direction H, guided by a linear motion guide (not shown), and in the second transport direction E1 and the second transport direction E2. Reciprocate within a predetermined range in the upstream direction E2.
The built-in cylinder 74 presses the retracting means 72 in the insertion direction H via the built-in base 73 in order to generate a driving force that presses the needle W2 in the insertion direction H. That is, the built-in rod 71 presses the needle W2 against the outer peripheral surface W8 of the retainer W4 via the retracting means 72 between the built-in cylinder 74 and the built-in cylinder 74.
By configuring the retracting means 72, the built-in base 73, and the built-in cylinder 74 in this manner, the built-in cylinder 74 and the retracting means 72 can be arranged in the insertion direction H in a compact manner, and the cam follower manufacturing system 1 can be made compact as a whole. It becomes possible to.

As shown in FIG. 3, the position when the built-in base 73 is moved to the second upstream direction E2 side is the base standby position K1, and the built-in base 73 is the most within the predetermined range from the position shown in FIG. The position of the built-in base 73 when moved to the second transport direction E1 side is a base feed position K2 described later.
The built-in cylinder 74 has a base position detection sensor 74b inside as shown in FIGS. 2 and 3, and detects the position of the base rod 74a included in the built-in cylinder 74 in the second transport direction E1, and the detection result. Is transmitted to the control unit 22. The controller 22 can determine the position of the built-in base 73 based on the transmitted detection result of the base position detection sensor 74b.

The retracting means 72 includes a retracting base 72a for fixing the built-in rod 71, an embedded guide 72b for guiding the retracting base 72a to move in the second transport direction E1 and the second upstream direction E2, and a first of the retracting base 72a. A stopper 72c for restricting movement in the second transport direction E1 side, a retracting spring 72d for biasing the retracting base 72a in the second transport direction E1, and a tip for detecting the position of the built-in bar 71 in the second transport direction E1 It has a position detection sensor 72f and a position detection bar 72e.
The retraction base 72a moves within a predetermined range with respect to the built-in base 73 by a retraction spring 72d.
The retracting spring 72d is a coiled spring and is arranged along the second conveying direction E1, and is extendable and retractable to a retracting spring fixture 73a having one end fixed to the retracting base 72a and the other end fixed to the built-in base 73. It is fixed to. The retracting spring 72d can extend until the retracting base 72a contacts the stopper 72c fixed to the built-in base 73. However, the retracting spring 72d is in a compressed state even when the retracting base 72a contacts the stopper 72c. Yes.

6 and 7 are explanatory diagrams showing the operation of the retracting means 72. FIG.
As will be described later, the plurality of needles W2 are assembled into the plurality of holes W7 while pressing the needle W2 against the outer peripheral surface W8 of the retainer W4 by pressing in the insertion direction H with the built-in rod 71.
At this time, normally, as shown in FIG. 6, the needle W2 already arranged at the position L1 already assembled in the hole W7 of the retainer W4 does not interfere with the needle W2 arranged at the adjacent position L2. Rotate in the rotation direction B together with the retainer W4.
However, as shown in FIG. 7, the hole W7 of the retainer W4 in the direction opposite to the predetermined direction B with respect to the insertion direction H due to the gap between the hole W7 and the needle W2 of the retainer W4 and the gap between the chute 52c and the needle W2. The needle W2 may be incorporated at the position L3. In this case, the needle W2 disposed at the position L3 contacts the needle W2 disposed at the position L4 pressed against the outer peripheral surface W8 of the retainer W4 by the rotation of the retainer W4, and the needle W2 disposed at the position L4 is in position L3. A predetermined drag M is received from the direction of the needle W2 disposed at the center.
The spring constant of the retracting spring 72d is that the needle W2 disposed at the position L4 is retracted in the direction opposite to the insertion direction H when receiving the component force in the second upstream direction E2 of the drag M and disposed at the position L3. It is set so that the contact with the needle W2 made can be eliminated. Further, as shown in FIG. 3, the spring constant of the retracting spring 72d may be such that the retracting spring 72d is contracted and cannot be compressed while the built-in base 73 moves from the base standby position K1 to the base feed position K2. There is also no setting.

As shown in FIG. 3, the position detection rod 72e is arranged along the second transport direction E1, and one end is fixed to the retraction base 72a. The position detection rod 72e passes through the retraction spring 72d and is guided to guide holes provided in the retraction spring fixing tool 73a and the sensor case 73b fixed to the built-in base 73, and the other end of the position detection rod 72e. Is set in the sensor case 73b. The tip position detection sensor 72f is a proximity sensor or the like, and is fixed to a side surface in the sensor case 73b.
The retraction base 72a moves relative to the built-in base 73 in the second transport direction E1 and the second upstream direction E2. As shown in FIG. 3, when the retracting base 72a comes into contact with the stopper 72c and moves to the second conveying direction E1 side with respect to the built-in base 73, the position of the built-in bar 71 with respect to the built-in base 73 is Position J.

Then, the built-in bar 71 reaches the built-in bar standby position J, and the other end of the position detection bar 72e is out of the sensing area of the position detection sensor 72f, so that the position of the built-in bar 71 is detected, as shown in FIG. The position detection sensor 72f transmits the detection result to the control unit 22. The controller 22 can determine the position of the built-in bar 71 based on the transmitted detection results of the position detection sensor 72f and the base position detection sensor 74b.
When the built-in base 73 is arranged at the base feed position K2 and the built-in bar 71 is arranged at the built-in bar standby position J, the tip of the built-in bar 71 reaches the vicinity of the retainer W4 attached in the setting jig 52, All the needles W2 accommodated in the counting holes 64a are set to be incorporated into the plurality of holes W7 of the retainer W4.

  As shown in FIG. 5, the outer ring assembly means 55 includes an outer ring jig 55a for assembling the outer ring W3 along the direction of the axis C1 of the stud W1, and an outer ring jig drive cylinder 55b for driving the outer ring jig 55a. And have.

Next, each step of the cam follower manufacturing method by the cam follower manufacturing system configured as described above will be described in detail. FIG. 8 is a flowchart of a method for manufacturing a cam follower, and FIGS. 9 to 11 are explanatory views showing each step of the method for manufacturing the cam follower.
It should be noted that steps other than the steps performed by the assembly device of the cam follower manufacturing system are the same as those already described or existing cam follower manufacturing systems, and thus description thereof is omitted.
Before each step of the cam follower manufacturing method is started, as shown in FIG. 3, a predetermined number of needles W2 are accommodated in the counting holes 64a provided in the elevator 64, and the elevator 64 is located at the lower end position. It is arranged in Q1. The built-in base 73 is disposed at the base standby position, and the built-in bar 71 is disposed at the built-in bar standby position.

First, in the member support step (step S1), as shown in FIG. 5, the operator attaches the retainer W4 to the outer peripheral surface W5 of the stud W1, and the inner peripheral surface 52d and the second jig 52b of the first jig 52a. The common axial line C2 of the inner peripheral surface 52e and the axial line C1 of the stud W1 are arranged so as to have the same axial line. Further, the operator assembles the outer ring W3 at the standby position G1 on the outer peripheral surface of the first end support 51a.
Then, the operator instructs the control unit 22 by an input device (not shown), drives the second end drive cylinder 51b by the valve switching unit 21, and moves the second end support 51d in the first upstream direction D2. By moving, the stud W1 is sandwiched and supported by the first end support tool 51a and the second end support tool 51d, and the process proceeds to step S2.
By the above process, the retainer W4 is supported so as to be rotatable about the axis C1 of the stud W1.

Next, in the rotating member assembling step (step S2), as shown in FIG. 9, the control unit 22 drives the assembling cylinder 74 by the valve switching unit 21, and moves the needle W2 accommodated in the counting hole 64a to the retainer W4. Press against the outer peripheral surface W8. Immediately after pressing, the stud W1 is rotated in the rotation direction B about the axis C1 of the stud W1 via the first end support 51a by the first end rotation motor 51c.
Then, when the stud W1 rotates, the retainer W4 also rotates in the rotation direction B, and the plurality of needles W2 are assembled into the plurality of holes W7 of the retainer W4 through the chute 52c provided in the setting jig 52. Go.
At this time, since the spring constant of the retracting spring 72d is set as described above, the needle W2 inserted into the hole W7 of the retainer W4 and the needle W2 pressed against the outer peripheral surface W8 of the retainer W4 as shown in FIG. And the rotation of the retainer W4 can be prevented from being inhibited. And since it can reduce that needles W2 contact | abut strongly, it becomes possible to suppress the damage | wound produced in needles W2.
Further, since the insertion direction H is set in a direction parallel to the horizontal plane, the influence of gravity acting on the needle W2 pressed against the outer peripheral surface W8 of the retainer W4 is suppressed, and the needle W2 is pressed against the outer peripheral surface W8 of the retainer W4. The power can be stabilized.

Thus, as shown in FIG. 10, the base position detection sensor 74b detects that the built-in base 73 has reached the base feed position K2, and the tip position detection sensor 72f detects that the built-in bar 71 is in the built-in bar standby position J. When detected, the control unit 22 stops the driving of the built-in cylinder 74 by the valve switching unit 21, and proceeds to step S3.
As described above, a predetermined number of needles W2 necessary for assembling one cam follower W arranged in the counting hole 64a provided in the elevator 64 are provided in the retainer W4 attached in the setting jig 52. It can be assembled to the hole W7 without excess or deficiency.

  Next, in the outer member initial assembly step (step S3), the control unit 22 drives the outer ring jig drive cylinder 55b by the valve switching unit 21 to move the first end support 51a in the first transport direction D1. Move to. Then, the outer ring W3 is moved from the standby position G1 to the initial position G2 shown in FIG. 5, assembled to approximately half the length of the plurality of needles W2, and the process proceeds to step S4.

  Next, in the jig removing step (step S4), the control unit 22 drives the one jig cylinder 53a and the second jig cylinder 53b by the valve switching unit 21. Then, the first jig 52a is moved upward in the vertical direction F and the second jig 52b is moved downward in the vertical direction F, and the setting jig 52 is divided and removed from the stud W1 and the plurality of needles W2, and the process goes to step S5. Transition.

Finally, in the outer member final assembly step (step S5), the control unit 22 drives the outer ring jig drive cylinder 55b by the valve switching unit 21 to move the first end support 51a in the first transport direction D1. Move to. Then, the outer ring W3 is assembled to the plurality of needles W2 over the entire length of the plurality of needles W2 in the direction of the axis C1 of the stud W1 (see FIG. 11).
The assembly of the cam follower W in the assembly apparatus 5 is completed by the above process.

Thus, according to the cam follower manufacturing system of the embodiment of the present invention, since the insertion direction H is set in a direction orthogonal to the axis C1 of the stud W1, the cam follower having a different outer diameter is obtained by replacing the setting jig 52. Even when W is manufactured, the needle W2 is inserted from the direction orthogonal to the axis C1 of the stud W1. For this reason, the chute part 52c provided in the setting jig 52 can be made into a simple shape, and the parts used in the setting jig 52 can be made common even if the outer diameter dimension of the cam follower W to be manufactured is changed. Is possible.
Moreover, the cam follower W which does not use the retainer W4 can also be manufactured by exchanging the setting jig 52 and the elevator 64.

  The cam follower W of the present invention is manufactured by the above-described cam follower manufacturing method. For this reason, the needle W2 inserted into the hole W7 of the retainer W4 and the needle W2 pressed against the outer peripheral surface W8 of the retainer W4 can come into strong contact with each other, and the scratches generated on the needle W2 can be suppressed. The rotation can be made more stable.

As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The change of the structure of the range which does not deviate from the summary of this invention, etc. are included.
For example, in the above-described embodiment, an operator who operates the cam follower manufacturing system 1 uses the common axis line C2 of the inner peripheral surface 52d of the first jig cylinder 53a and the inner peripheral surface 52e of the second jig 52b, and the retainer. Arranged so that the axis C1 of the stud W1 assembled with W4 has the same axis. In addition, the operator locked the outer ring W3 on the outer peripheral surface of the first end support 51a so that the outer ring W3 does not move in the first transport direction D1.
However, a stud supply device and an outer ring supply device that automatically perform the above-described operation under the command of the control unit 22 may be newly provided.

Further, instead of the retracting means 72, the built-in base 73, and the built-in cylinder 74 in the above embodiment, an air cylinder in which the air pressure is newly set to be weak may be used. If the torque of the rotary motor 51c is set strongly, the drag M of the needle W2 described above increases, so that the built-in rod 71 can be retracted in the direction opposite to the insertion direction H against the driving force of the air cylinder. Because.
In the above embodiment, the retracting spring 72d is a coil spring, but it may be a leaf spring or a disc spring.

Further, the position detecting rod 72e and the rod position detecting sensor 72f may be eliminated from the configuration of the retracting means 72 of the above embodiment. This is because the operator can confirm the position of the built-in bar 71 without the bar position detection sensor 72f.
Moreover, in the said embodiment, the some needle W2 was accommodated in the counting hole 64a provided in the elevator 64. FIG. However, a plurality of needles W <b> 2 may be arranged on the chute portion 52 c provided on the setting jig 52.

In the above embodiment, the insertion direction H, which is the direction in which the built-in bar 71 is arranged and the reciprocating movement of the built-in bar 71, is the direction perpendicular to the axis C1 of the stud W1. However, the insertion direction H may be a direction intersecting the axis C1 of the stud W1.
Even when the retainer W4 is provided with a shape that prevents the needle W2 from falling off in the direction of the axis C1 of the stud W1, the retainer can be avoided while incorporating the needle W2 from the direction intersecting the axis C1 of the stud W1. This is because the needle W2 can be assembled to the hole W7 of W4.

Moreover, in the said embodiment, the insertion direction H which is the direction where the built-in stick | rod 71 is arrange | positioned and the built-in stick | rod 71 reciprocates may not be a direction parallel to a horizontal surface. This is because this can be done by changing the spring constant of the retracting spring 72d and the moving speed of the built-in cylinder 74.
In the above embodiment, the built-in cylinder 74 is configured to press the retracting means 72 in the insertion direction H via the built-in base 73 provided with the direction changing portion 73c extending in the second upstream direction E2. However, the built-in cylinder 74 may be arranged in the second upstream direction E2 of the retracting means 72 and the retracting means 72 may be pressed from the insertion direction H by the built-in cylinder 74.

1 Cam follower manufacturing system (bearing device manufacturing system)
51 Rotating means 52 Setting jig (supporting means)
52c Chute part 71 Built-in rod (built-in member)
72 Retraction means 73 Built-in base (transmission member)
73c Direction change part 74 Built-in cylinder (pressing means)
C1 Stud axis (inner support member axis)
E1 Second transport direction H Insertion direction W Cam follower (bearing device)
W1 stud (inner support member)
W2 Needle (Rotating member)
W4 Retainer W7 Hole

Claims (6)

A chute that is arranged outside the inner support member and supports a cylindrical retainer having a plurality of holes in the circumferential direction so as to be rotatable about the axis of the inner support member, and extends in the insertion direction toward the hole. A support means provided with a section;
A rotating means for rotating the retainer in a predetermined direction around the axis of the inner support member;
In a manufacturing system of a bearing device, comprising: a plurality of rotating members arranged in the chute portion against an outer peripheral surface of the retainer; and a plurality of built-in members that incorporate the plurality of rotating members into the plurality of holes.
The assembly member is configured to press the rotating member through a retracting unit that retracts in a direction opposite to the insertion direction when a predetermined drag is applied in a direction opposite to the insertion direction. Manufacturing system. In the bearing device manufacturing system according to claim 1,
The bearing device manufacturing system according to claim 1, wherein the insertion direction is a direction orthogonal to an axis of the inner support member. In the bearing device manufacturing system according to claim 1 or 2,
The system for manufacturing a bearing device, wherein the insertion direction is a direction parallel to a horizontal plane. In the manufacturing system of the bearing device according to any one of claims 1 to 3,
The pressing means for generating a driving force for pressing the rotating member presses the retracting means in the insertion direction via a transmission member provided with a direction changing portion extending in a direction opposite to the insertion direction. Bearing device manufacturing system. A member support step of supporting a cylindrical retainer disposed outside the inner support member and provided with a plurality of holes in the circumferential direction so as to be rotatable about the axis of the inner support member;
The retainer is rotated in a predetermined direction about the axis of the inner support member, and a plurality of rotating members are pressed against the outer peripheral surface of the retainer from the insertion direction to the hole, thereby a plurality of holes are provided in the plurality of holes. In a manufacturing method of a bearing device comprising a rotating member incorporating step of incorporating the rotating member,
When the rotation member pressed against the outer peripheral surface of the retainer from the insertion direction receives a predetermined drag force in the direction opposite to the insertion direction from the rotation member incorporated in the hole, the insertion direction A method of manufacturing a bearing device, wherein the rotating member pressed against an outer peripheral surface of a retainer is retracted in a direction opposite to the insertion direction.   A bearing device manufactured by the method for manufacturing a bearing device according to claim 5.

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