JP2020044575A - Ring molding device, and ring molding method - Google Patents

Abstract

To provide a ring molding device 1 by which even if a set of two annular elements Wo are integrally diameter-expanded in the state that end faces S on a cross section thick side are brought into contact with each other, press molding can be performed without provision of a press molding part 9 according to respective directions thereof, and to provide a ring molding method.SOLUTION: A ring molding device 1 for molding a set of two annular elements Wo comprises: a rolling molding part 4 which integrally expands diameters of the set of two annular elements Wo in the state that end faces S on a cross section thick side are brought into contact with each other, and obtains a first molded wheel body Wm1 and a second molded wheel body Wm2; a second transport path 8 for transporting the first molded wheel body Wm1 in a transport direction X; and a rotating mechanism part 7 which rotates the second molded wheel body Wm2 around a virtual straight line, which is substantially orthogonal to the transport direction X, as a rotation axis in a radial direction of the second molded wheel body Wm2, and delivers the same to the second transport path 8.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a ring forming apparatus and a ring forming method for forming an outer ring and / or an inner ring of a tapered bearing, for example.

  For example, Patent Document 1 discloses a ring forming device in which a substantially annular annular body is formed by cold rolling to obtain an outer ring or an inner ring of a tapered bearing. A device is described in which the end faces are brought into contact with each other and the diameter is integrally increased to form a shape having a desired inner and outer diameter.

  By the way, Patent Literature 1 states that, for example, when a set of annular element bodies in which end surfaces on the thinner section side are in contact with each other are integrally expanded in diameter, a desired shape cannot be formed. For this reason, in Patent Literature 1, a set of annular element bodies is formed into a desired shape by integrally expanding the diameter in a state where the end surfaces on the thicker side in section are in contact with each other.

  However, when one set of annular bodies and the other annular body are successively carried out when carrying out the set of annular bodies having been expanded in this way to the next step, the cross-sectional thickness of one annular material is increased. The direction of the end face on the side and the direction of the end face on the cross-section thick side of the other annular material are conveyed in a state opposite to each other.

  For this reason, for example, when performing sizing by press molding in the next step, it is necessary to provide a press machine according to the direction of one ring element and a press machine according to the direction of the other ring element, respectively. There was a problem.

JP 2006-320927 A

  The present invention has been made in view of the above-described problem, even when the diameter of one pair of annular element bodies is integrally increased in a state where one end face in the axial direction is in contact with each other, An object of the present invention is to provide a ring forming apparatus and a ring forming method capable of performing forming in the next step without providing a corresponding forming machine in the next step.

  The present invention is a ring forming apparatus for forming a pair of annular bodies having substantially the same inner and outer diameters in a substantially annular shape into a desired ring shape, wherein one end faces in the axial direction abut against each other. A diameter expanding means for integrally expanding a pair of the annular element bodies to a desired diameter to obtain a first molded wheel body and a second molded wheel body; The second molding is performed by using, as a rotation axis, a conveyance path that conveys the forming wheel in a predetermined conveyance direction and a virtual straight line that is substantially orthogonal to the predetermined conveyance direction in a radial direction of the second forming wheel. And a rotating discharging means for rotating the wheel body and discharging the rotating body to the transport path.

The axial direction refers to a direction orthogonal to the radial direction of the annular body.
The one end face in the axial direction refers to an end face having the same axial direction in a state where two ring bodies are arranged so as to be line-symmetric with respect to the axial direction as a target axis.
The state in which the one end faces are in contact with each other means a state in which the two ring bodies are arranged so as to be line-symmetric with respect to a virtual straight line orthogonal to the axial direction as a target axis.

According to the present invention, even when two sets of annular element bodies are integrally expanded in a state where one end faces in the axial direction are in contact with each other, a molding machine corresponding to each direction is next provided. The molding in the next step can be performed without providing in the step.
Specifically, the ring forming apparatus can convey the first formed ring body and the second formed ring body whose diameters have been expanded to the transfer path in a continuous and uninterrupted manner. it can.

  At this time, since the rotating and unloading means rotates the second forming wheel and discharges it to the transport path, the ring forming apparatus changes the direction of one end surface of the second forming wheel in the transport path to the second direction. The direction can be the same as the direction of one end surface of the one molded wheel.

  Accordingly, the ring forming apparatus can increase the diameter of the first expanded annular element body even when the two sets of annular element bodies are integrally expanded in a state where one end surfaces in the axial direction are in contact with each other. The forming wheel and the second forming wheel can be sequentially conveyed with their end faces aligned.

  For this reason, for example, in the next step, when press-forming the first formed wheel and the second formed wheel, the ring forming device includes a press machine corresponding to the first formed wheel and a second press. The first molded wheel and the second molded wheel can be press-formed without providing a press corresponding to the molded wheel.

  Further, for example, in the next step, when press-forming the first forming wheel and the second forming wheel, the ring forming apparatus uses the first forming wheel whose one end face in the axial direction faces the same direction. Since the body and the second formed wheel can be press-formed using one end surface as a reference surface, it is possible to improve both press-forming efficiency and forming accuracy.

  As an aspect of the present invention, the first forming wheel body disposed between the diameter expanding means and the rotating / unloading means and having one end surface in the axial direction abutting on each other, and the second forming wheel body A first transport path for integrally transporting the forming wheel body in the predetermined transport direction, the first forming wheel body, and the second forming wheel rotated by the rotating and unloading means. A second conveying path, which is the conveying path for conveying the body in this order, the first conveying path is erected along the predetermined conveying direction, and A contact portion that contacts a boundary between one end surface and the one end surface of the second formed wheel may be provided.

  According to the present invention, the ring forming apparatus is configured such that, in the first transport path, the first forming ring and the second forming ring in a state where one end surfaces in the axial direction are in contact with each other are axially moved by the contact portion. Can be separated from each other.

For this reason, the ring forming device can prevent the first formed wheel and the second formed wheel from being integrally transferred to the second transfer path. In other words, the ring forming device can guide the first forming wheel toward the second conveying path and guide the second forming wheel toward the rotating / unloading means by the contact portion. .
Therefore, the ring forming apparatus stably carries out the first forming wheel and the second forming wheel to the second conveying path in this order by cooperation of the rotation carrying-out means and the contact portion. be able to.

  Further, as an aspect of the present invention, the rotating and unloading means includes a rotary table that rotates about the rotary shaft, and the rotary table includes a table transport path that transports the first forming wheel to the transport path. A restricting portion that is adjacent to the table conveying path and that restricts movement of the second forming wheel in the predetermined conveying direction.

  According to the present invention, the ring forming apparatus can change the direction of the second forming wheel and carry out the second forming wheel to the transport path almost simultaneously just by rotating the rotary table. . Furthermore, since the first forming ring can be directly transferred to the transfer path via the table transfer path, the ring forming apparatus transfers the first forming ring and the second forming ring in this order. It can be transported efficiently by the transport path.

  Further, as an aspect of the present invention, the annular element has a configuration in which a cross-sectional shape in a cross-section along an axial direction is formed to have a cross-sectional shape that becomes gradually thicker along the axial direction. A configuration may be adopted in which a pair of the annular element bodies in which the end surfaces on the thick side are in contact with each other are integrally expanded in diameter.

  According to the present invention, when the ring forming device integrally expands the diameter of the pair of annular element bodies, the load acting on the peripheral surface of one annular element body and acting on the peripheral surface of the other annular element body The two ring bodies can be prevented from separating in the axial direction with the progress of the diameter expansion by the component force of the applied load.

For this reason, the ring forming apparatus can efficiently form a pair of annular bodies into a desired shape.
Therefore, the ring forming apparatus efficiently performs the forming of the first forming ring and the second forming ring by expanding the diameter and the conveyance of the first forming ring and the second forming ring. Can be.

  The present invention is a ring forming method using a forming device for forming a pair of annular element bodies formed in a substantially annular shape having substantially the same inner and outer diameters into a desired ring shape, wherein A diameter expanding step of integrally expanding a pair of the annular element bodies whose end surfaces are brought into contact with each other to a desired diameter to obtain a first molded ring body and a second molded ring body; A transporting step of transporting the first molding wheel in a predetermined transport direction via a transport path, and a virtual straight line substantially orthogonal to the predetermined transport direction in a radial direction of the second molding wheel. A rotating shaft for rotating the second formed body with the rotating shaft as a rotating shaft, and carrying out the rotating process to the conveying path.

  According to the present invention, even when two sets of annular element bodies are integrally expanded in a state where one end faces in the axial direction are in contact with each other, a molding machine corresponding to each direction is next provided. The molding in the next step can be performed without providing in the step.

  According to the present invention, even when a pair of annular element bodies are integrally expanded in a state where one end faces in the axial direction are in contact with each other, a molding machine corresponding to each direction is provided by the following. A ring forming apparatus and a ring forming method capable of performing forming in the next step without providing the ring forming apparatus in the step can be provided.

Explanatory drawing explaining the annular element body and outer ring used in the ring forming apparatus of this embodiment. The front view which shows the external appearance of a ring forming apparatus by a front view. FIG. 2 is a block diagram showing the internal configuration of the ring forming device. FIG. 2 is a front view showing the appearance of a charging mechanism unit and a rolling molding unit in a front view. The top view which shows the external appearance of a rolling molding part in planar view. FIG. 4 is a front view showing the appearance of the lift mechanism and the rotation mechanism in a front view. FIG. 4 is a plan view showing a range from a first transport path to a second transport path in plan view. FIG. 2 is a plan view showing a main part of a first transport path in plan view. FIG. 5 is a plan view showing the rotation mechanism in plan view. Explanatory drawing explaining the annular element body and inner ring used by another ring forming apparatus.

One embodiment of the present invention will be described below with reference to the drawings.
The ring forming apparatus 1 of the present embodiment forms the substantially annular annular body Wo by cold rolling to obtain a formed ring Wm, and further forms the formed ring Wm by press forming. An outer ring Ro of a tapered bearing having desired inner and outer diameters and width dimensions is obtained. Such a ring forming apparatus 1 will be described with reference to FIGS.

  FIG. 1 is an explanatory view for explaining an annular element Wo and an outer ring Ro used in the ring forming apparatus 1 of the present embodiment, FIG. 2 is a front view of the ring forming apparatus 1, and FIG. FIG. 4 shows a block diagram of the internal configuration of the device 1, and FIG. 4 shows a front view of the input mechanism 3 and the rolling forming unit 4.

  5 shows a plan view of the rolling forming section 4, FIG. 6 shows a front view of the lift mechanism section 6 and the rotation mechanism section 7, and FIG. FIG. 8 is a plan view of a main part of the first transport path 5, and FIG. 9 is a plan view of the rotation mechanism 7.

  In addition, in FIG. 1, FIG. 1A shows a front view of the annular body Wo, FIG. 1B shows a cross-sectional view taken along the line AA in FIG. 1A, and FIG. 1C shows a sectional view of a pair of annular element bodies Wo in a state where the end faces S are in contact with each other, FIG. 1D shows a front view of the outer ring Ro, and FIG. (D) is a cross-sectional view taken along the line BB.

  In the drawings, an arrow X indicates a transport direction in which the annular body Wo and the formed wheel Wm are transported (hereinafter, referred to as a “transport direction X”), and an arrow Y corresponds to the transport direction X in plan view. Indicates a width direction which is a direction orthogonal to the width direction (hereinafter, referred to as “width direction Y”). Note that the upper part in FIG. 2 is the upper part of the ring forming apparatus 1 and the lower part in FIG.

  In addition, in order to clarify the illustration, in FIG. 5, the annular element body Wo is illustrated by a cross-sectional shape in a substantially horizontal cross section along the width direction Y, and in FIG. 8 and FIG. The body Wm is illustrated in a cross-sectional shape in a substantially horizontal cross section along the width direction Y.

First, the ring element Wo used in the embodiment and the outer ring Ro of the tapered bearing obtained by the ring forming apparatus 1 will be briefly described.
As shown in FIGS. 1A and 1B, the annular body Wo is formed in a substantially annular shape in a front view in which the outer diameter D is constant and the inner diameter d is gradually increased. In other words, the thickness of the annular body Wo in the vertical cross section along the axial direction G, which is a direction orthogonal to the radial direction of the annular body Wo, becomes gradually thicker along the axial direction G. Are formed in a substantially annular shape in a front view having a substantially tapered inner peripheral surface.

  As shown in FIG. 1 (c), when the ring element Wo is put into the ring forming apparatus 1, the ring element Wo is put into the ring forming apparatus 1 in a paired state. More specifically, the paired annular element bodies Wo are put into the ring forming apparatus 1 in a state where the end face S on the cross-section thick side which becomes thick in the vertical cross section along the axial direction G is brought into contact. You.

On the other hand, as shown in FIGS. 1D and 1E, the outer ring Ro is formed in a substantially annular shape in a front view in which the outer diameter E is constant and the inner diameter e is gradually increased. In other words, the outer ring Ro is formed in a substantially annular shape in a front view having a substantially tapered inner peripheral surface by gradually increasing the thickness in the vertical cross section along the axial direction G along the axial direction G. Have been.
The outer ring Ro has an outer diameter E and an inner diameter e larger than the outer diameter D and the inner diameter d of the annular body Wo, as shown in FIGS. The width dimension h, which is the length in the direction G, is formed to be shorter than the width dimension H of the annular body Wo.

  As shown in FIGS. 2 and 3, the ring forming apparatus 1 for obtaining the outer ring Ro from the annular element body Wo receives a supply of a pair of annular element bodies Wo and carries in the transport direction X. 2 and a loading mechanism 3 for transporting the pair of annular bodies Wo downward and feeding them to the next step; and forming the two pairs of annular bodies Wo by cold rolling. A rolling forming unit 4 for obtaining a pair of forming wheel bodies Wm, a first conveying path 5, a lift mechanism unit 6, a rotating mechanism unit 7, and a second conveying path 8 for conveying the forming wheel bodies Wm; A press forming section 9 for press forming the outer ring Ro one by one, an unloading path 10 for unloading the outer ring Ro one by one in the transport direction X, and a forming control section 11 for controlling each operation of the above-described components. It is composed of

  In the ring forming apparatus 1, as shown in FIG. 2, the carry-out path 10 for carrying out the outer ring Ro is positioned farther and substantially below in the horizontal direction with respect to the carry-in path 2 for carrying in the ring element Wo. It is configured as follows. A substantially horizontal direction and a downward direction from the carry-in path 2 to the carry-out path 10 are defined as a transfer direction X, and the ring forming apparatus 1 moves the annular element Wo and the formed ring Wm in the transfer direction using potential energy. It is configured to be transportable to X.

  As shown in FIGS. 1C and 4, the carry-in path 2 integrally receives the input of a pair of annular element bodies Wo whose end faces S are erected so that the axial direction is substantially horizontal. , A pair of annular element bodies Wo can be integrally transported.

  Specifically, as shown in FIG. 4, the loading path 2 has one end on the transport direction X side located above the rolling forming unit 4 (a mandrel 41 described later) as viewed from the front, and extends along the transport direction X. It is arranged to be inclined. The carry-in path 2 extends in the carrying direction X and has a concave groove shape with an open top, and is larger than a value obtained by summing the widths H of the two ring bodies Wo, that is, a value obtained by doubling the width H. It is formed in a shape having a slightly larger groove width.

  Note that a detection sensor (not shown) that is electrically connected to the molding control unit 11 and detects a pair of annular bodies Wo passing through the carry-in path 2 is provided in the carry-in path 2. Along a predetermined distance.

  Further, as shown in FIGS. 3 and 4, the loading mechanism unit 3 rolls the pair of annular element bodies Wo loaded through the loading path 2 in cooperation with a molding control unit 11 described later. It constitutes a body inputting means for inputting into the forming section 4.

  Specifically, as shown in FIG. 4, the loading mechanism unit 3 includes a hook member 31 disposed opposite to the tip of the loading path 2 in the transport direction X, and an actuator unit (not shown) for lifting and lowering the hook member 31. And a loading guide section 32 disposed at the lower end of the leading end of the loading path 2.

As shown in FIG. 4, the hook member 31 has an elongated shape extending in the up-down direction, and a portion of the hook member 31, which faces the carry-in path 2, has a substantially circular outer diameter D substantially equal to the outer diameter D of the annular body Wo. It is formed in a shape cut out in an arc shape.
The actuator unit is configured by an electric actuator, an air actuator, a hydraulic actuator, or the like that can move up and down. The operation of the actuator section is controlled by a molding control section 11 described later.

  As shown in FIG. 4, the loading guide portion 32 sandwiches the pair of annular bodies Wo with the hook member 31 and can guide the downward movement of the pair of annular bodies Wo. It is configured. Specifically, the loading guide portion 32 is formed in a concave groove shape that extends in the up-down direction and is opened on the transport direction X side.

  Further, as shown in FIGS. 3 to 5, the rolling forming unit 4 cools the pair of annular element bodies Wo having the end surfaces S in contact with each other by cooperation with a forming control unit 11 described below. The diameter expanding means for integrally expanding the diameter by the intermediate rolling to obtain the formed wheel body Wm is configured. As shown in FIGS. 3 to 5, the rolling forming part 4 includes a mandrel 41 for integrally holding a pair of annular bodies Wo, a forming roll 42, and an auxiliary roller 43 for driving the mandrel 41 to rotate. It is composed of

  As shown in FIG. 4, the mandrel 41 is disposed below the input mechanism 3 in a front view. The mandrel 41 is supported so as to be able to reciprocate in a width direction Y which is a direction substantially orthogonal to the transport direction X in a plan view, and a pair of annular element bodies Wo is When it moves, it moves from the right side to the left side in the width direction Y in the transport direction X.

  Specifically, as shown in FIG. 5, the mandrel 41 includes, in a plan view, a shaft portion 41a rotatably supported with the width direction Y as a rotation axis, and a pair of two annular element bodies Wo. The inner surface forming portion 41b for forming the peripheral surface and the enlarged diameter portion 41c formed on the shaft portion 41a with the inner surface forming portion 41b interposed therebetween are integrally formed.

  As shown in FIG. 5, the shaft portion 41a has a shaft center in the width direction Y in plan view, and both ends thereof are rotatably supported by bearings not shown. As shown in FIG. 4, the shaft portion 41a is arranged such that, in a front view, the shaft center is located below the radial center of the annular body Wo received by the hook member 31 of the insertion mechanism portion 3. Has been established.

As shown in FIG. 5, the inner surface forming portion 41b has a shape capable of integrally forming the inner peripheral surface of the pair of annular element bodies Wo into a desired inner peripheral surface shape of the formed annular body Wm. Thus, it is formed in a substantially continuous shape with a reduced diameter at the approximate center in the width direction Y.
As shown in FIG. 5, the enlarged diameter portion 41c has a diameter smaller than the diameter of the inner surface forming portion 41b on the large diameter side, and is formed in a shape in which the diameter of the shaft portion 41a adjacent to the inner surface forming portion 41b is increased. .

  As shown in FIGS. 4 and 5, the forming roll 42 is disposed adjacent to the mandrel 41 in a direction opposite to the transport direction X in plan view. The forming roll 42 is supported so as to be able to reciprocate in the transport direction X and a direction opposite to the transport direction X in a plan view.

  Specifically, as shown in FIG. 5, the forming roll 42 includes a rotating shaft portion 42a rotatably supported with the width direction Y as a rotating shaft and a pair of two annular element bodies Wo in plan view. An outer surface forming portion 42b for forming the outer peripheral surface and a pair of end surface forming portions 42c for forming an axial end surface of the annular body Wo are integrally formed. The forming roll 42 is rotationally driven by a driving motor 44 connected to one end of the rotating shaft portion 42a in the axial direction.

As shown in FIG. 5, the rotating shaft portion 42a is a shaft having a shaft center in the width direction Y in a plan view, and both ends thereof are rotatably supported via bearings.
As shown in FIG. 5, the outer surface forming portion 42b has a diameter larger than the outer diameter of the rotating shaft portion 42a, and forms the outer peripheral surface of the pair of annular bodies Wo into the outer peripheral surface of a desired forming wheel Wm. It is formed in a substantially cylindrical shape that can be integrally formed with the shape. In addition, a projection portion for forming a chamfered portion of the formed wheel body Wm is provided at a substantially center in the width direction Y of the outer surface formed portion 42b so as to project radially outward.

  As shown in FIG. 5, the pair of end face forming portions 42c are arranged to face each other in the axial direction with the outer surface forming portion 42b interposed therebetween. The pair of end face forming portions 42c are substantially disk-shaped and have a diameter larger than that of the outer surface forming portion 42b, and the value obtained by summing the widths of the two desired formed wheel bodies Wm, that is, the width is doubled. It is formed with an interval in the width direction Y substantially the same as the value.

As shown in FIG. 4, the auxiliary roller 43 is adjacent to the mandrel 41 on the transport direction X side in a front view, and is arranged so as not to be movable in the transport direction X and the width direction Y.
Specifically, as shown in FIG. 5, the auxiliary roller 43 includes a rotating shaft 43 a rotatably supported with the width direction Y as a rotation axis, and a pair of disks that abut on the enlarged diameter portion 41 c of the mandrel 41. It is formed integrally with the portion 43b.

The auxiliary roller 43 is driven to rotate by a drive motor 45 connected to one axial end of the rotary shaft 43a.
As shown in FIG. 5, the rotating shaft portion 43a is a shaft having a shaft center in the width direction Y in plan view, and both ends thereof are rotatably supported via bearings.
The pair of disk portions 43b is formed in a substantially disk shape having a diameter larger than that of the rotation shaft portion 43a and having an outer peripheral surface capable of contacting the enlarged diameter portion 41c of the mandrel 41.

  Further, as shown in FIGS. 2, 4, and 6, the first transport path 5 is inclined between the mandrel 41 of the rolling forming unit 4 and the lift mechanism 6 along the transport direction X. It is arranged. The first transport path 5 is electrically connected to the molding control unit 11 and has a detection sensor (not shown) for detecting two molded wheel bodies Wm passing through the first transport path 5 in the transport direction. It is assumed that they are arranged at predetermined intervals along X.

Specifically, as illustrated in FIGS. 4, 6, and 7, the first transport path 5 includes a bottom surface 51 that forms the bottom surface of the first transport path 5 and a bottom surface 51 that sandwiches the bottom surface 51 in a plan view. A pair of side wall portions 52 forming side walls facing each other in the width direction Y and a central wall portion 53 erected substantially at the center of the bottom surface portion 51 in the width direction Y are formed in a concave groove shape having an upper opening. .
The bottom surface portion 51 has a substantially flat shape having a thickness in the up-down direction, and is disposed in a state of being inclined along the transport direction X.

  As shown in FIG. 7, the side wall portion 52 is configured such that, in plan view, the thickness in the width direction Y is the thickest portion 52 a, and the surface facing the other side wall portion 52 forms an inclined surface. The gradually thinner portion 52b gradually becoming thinner along the transport direction X, and the thinner portion 52c having the same thickness as the thinnest portion of the gradually thinner portion 52b are moved from the rolling forming part 4 toward the transport direction X. They are arranged in order and integrally formed.

  As shown in FIGS. 7 and 8, the pair of side wall portions 52 has an interval in the width direction Y slightly larger than a value obtained by adding the widths of the two formed wheel bodies Wm, that is, a value obtained by doubling the width. , The thick portions 52a are arranged so as to face each other in the width direction Y.

  As shown in FIGS. 7 and 8, the central wall portion 53 is provided upright in a range from the position slightly closer to the transport direction X to the lift mechanism 6 than the gradually thinned portion 52 b of the side wall portion 52. The center wall portion 53 is formed to have a thickness such that an interval between the central wall portion 53 and the thin portion 52c of the side wall portion 52 in the width direction Y is slightly larger than a width dimension of one molded wheel body Wm.

  Further, the end of the center wall 53 in the direction opposite to the transport direction X is formed in a substantially triangular shape in plan view having a top on the side opposite to the transport direction X, as shown in FIG. More specifically, the end of the central wall portion 53 is formed at an acute angle with respect to the angle formed by the chamfered portion of the molded wheel body Wm on the side of the end surface S that is in contact with each other.

  In this way, as shown in FIGS. 7 and 8, the first transport path 5 independently transports the formed wheel bodies Wm by the central wall portion 53 and the portion that integrally transports the two formed wheel bodies Wm. It is composed of Of the portions for independently transporting the formed wheel bodies Wm, the right side in the transport direction X is the right transport path 5R, and the left side in the transport direction X is the left transport path 5L.

  Here, in order to clarify the following description, as shown in FIG. 8, the forming wheel Wm passing through the left conveying path 5L in the first conveying path 5 is referred to as a first forming wheel Wm1, and the right conveying path 5R. Will be described as a second formed wheel Wm2.

  As shown in FIGS. 3 and 6, the lift mechanism unit 6 moves the positions of the first forming wheel Wm1 and the second forming wheel Wm2 by cooperation with a forming control unit 11 described below. The lifting means moves from the lower position to the higher position to recover the potential energy of the first forming wheel Wm1 and the second forming wheel Wm2.

  The lift mechanism unit 6 is electrically connected to the forming control unit 11 and detects a first forming wheel Wm1 and a second forming wheel Wm2 that have reached the lift mechanism unit 6. (Not shown), and a detection sensor (not shown) for detecting that the first forming wheel Wm1 and the second forming wheel Wm2 have escaped from the lift mechanism 6 are provided. .

  Specifically, as shown in FIGS. 6 and 7, the lift mechanism unit 6 includes an elevating table 61 disposed adjacent to the bottom surface 51 of the first transport path 5 and a width direction with the elevating table 61 interposed therebetween. A pair of lift side wall members 62 forming side walls opposed to each other in Y, a lift guide member 63 disposed adjacent to the lift table 61 on the transport direction X side, and a lift actuator unit 64 for moving the lift table 61 up and down. It is composed of

  As shown in FIGS. 6 and 7, the elevating table 61 has a thickness in the up-down direction and a substantially flat table body 61 a having an upper surface inclined along the transport direction X, and a central wall of the first transport path 5. The lift center wall portion 61b is provided upright at the approximate center of the table body 61a in the width direction Y so as to be continuous with the portion 53.

As shown in FIGS. 6 and 7, the pair of lift side wall members 62 have a substantially flat plate shape having a thickness in the width direction Y, and are located at substantially the same positions in the width direction Y as the side wall portions 52 of the first transport path 5. It is arranged.
The lift guide member 63 has a function of restricting the movement of the first forming wheel Wm1 and the second forming wheel Wm2 in the transport direction X, a function of the first forming wheel Wm1, and a function of the second forming wheel. A function of guiding the upward movement of Wm2.

  Specifically, as shown in FIG. 6, the lift guide member 63 extends in the transport direction X from the upper end of the substantially flat vertical wall portion 63a having a thickness in the transport direction X and the vertical wall portion 63a. At the same time, it is integrally formed with an inclined floor portion 63b inclined along the transport direction X.

  As shown in FIG. 6, the lifting actuator 64 is an electric actuator, an air actuator, a hydraulic actuator, or the like that can be raised and lowered in the vertical direction, and is substantially the same as the bottom 51 of the first transport path 5 when viewed from the front. The elevating table 61 is configured to be able to move up and down at the same vertical position as the inclined floor surface portion 63b of the lift guide member 63 in the vertical position. The operation of the lifting actuator 64 is controlled by a molding controller 11 described later.

  As shown in FIG. 7, the lift mechanism 6 includes a lift side wall member 62 on the right side in the transport direction X, a table body 61a of the lifting table 61, and a lift center wall 61b. A right conveying path 6R that is continuous with the right conveying path 5R of the conveying path 5 is formed, and includes a lift side wall member 62 on the left side in the conveying direction X, a table body 61a of the elevating table 61, and a lift central wall portion 61b. A left transport path 6L that is continuous with the left transport path 5L of the first transport path 5 is configured.

  Further, as shown in FIG. 3 and FIG. 9, the rotation mechanism unit 7 is configured to transfer the second molding conveyed through the right conveyance path 5R of the first conveyance path 5 and the right conveyance path 6R of the lift mechanism unit 6. The direction of the end surface S of the wheel body Wm2 is set to the direction of the end surface S of the first molded wheel body Wm1 conveyed through the left conveyance path 5L of the first conveyance path 5 and the left conveyance path 6L of the lift mechanism unit 6. In order to make them coincide with each other, a rotation discharging unit configured to rotate the second forming wheel body Wm2 and discharge it to the second conveying path 8 by cooperation with a forming control unit 11 described later is configured.

  Specifically, as shown in FIGS. 6 and 9, the rotation mechanism 7 is substantially disc-shaped in plan view and disposed adjacent to the inclined floor 63 b of the lift guide member 63 in the lift mechanism 6. , A circular wall member 72 that is disposed adjacent to the rotary table 71 and has a substantially circular arc shape in a plan view, and a rotary driving unit 73 that drives the rotary table 71 to rotate.

  As shown in FIGS. 6 and 9, the rotary table 71 is a table main body 71 a which is a flat plate having a substantially circular shape in a plan view, and a pair of tables standing upright so as to be continuous with the lift side wall member 62 of the lift mechanism 6. It is composed of a side wall portion 71b and a table central wall portion 71c erected so as to be continuous with the lift central wall portion 61b of the lift mechanism 6.

As shown in FIGS. 6 and 9, the table main body 71 a has a substantially flat plate shape having a thickness in the vertical direction, and is disposed with its upper surface inclined along the transport direction X.
As shown in FIGS. 6 and 9, the pair of table side walls 71 b is a flat plate having a thickness in the width direction Y, and is disposed at substantially the same position in the width direction Y as the lift side wall members 62 of the lift mechanism 6. Has been established.

  As shown in FIGS. 6 and 9, the table center wall 71c is substantially flat and has a thickness substantially equal to that of the lift center wall 61b of the lift mechanism 6, and the table center wall 71c of the lift mechanism 6. It is arranged at a position in the width direction Y which is substantially the same as that of FIG. Further, at the end of the table center wall 71c in the transport direction X, as shown in FIG. A regulating portion 71d for regulating the movement of the forming wheel Wm2 in the transport direction X is integrally formed.

  Due to such a configuration, as shown in FIGS. 7 and 9, the rotary table 71 includes a table side wall portion 71b on the left side in the transport direction X, a table central wall portion 71c, and a table body 71a. A conveyance stop path 71R for stopping the conveyance of the second formed wheel Wm2 conveyed through the right conveyance path 6R of the lift mechanism unit 6 is configured, and a table side wall 71b on the left side in the conveyance direction X, A table transport path for directly transporting the first forming wheel Wm1 transported through the left transport path 6L of the lift mechanism section 6 to the second transport path 8 between the central wall portion 71c and the table body 71a. 71L are configured.

As shown in FIG. 9, the arc-shaped wall member 72 has an arc shape in a plan view having substantially the same inner diameter as the diameter of the turntable 71, and is adjacent to the left side of the turntable 71 in the transport direction X and rotates. It is arranged in an impossible state.
As shown in FIG. 6, the rotation drive unit 73 includes, for example, a drive motor whose operation is controlled by the molding control unit 11 and supports the turntable 71 rotatably from below.

  More specifically, the rotation drive unit 73 passes through the substantially center of the table main body 71a of the rotation table 71 in a plan view, and uses a virtual straight line substantially orthogonal to the transport direction X as a rotation axis in a front view. 71 is rotatably supported. In other words, the rotary drive unit 73 rotatably supports the rotary table 71 around a virtual straight line that is substantially perpendicular to the transport direction X in the radial direction of the second forming wheel Wm2.

  As shown in FIGS. 2 and 6, the second transport path 8 is disposed between the rotation mechanism section 7 and the press forming section 9 in a state of being inclined along the transport direction X. The second transport path 8 is different from the first transport path 5 described above, and is configured to be able to transport the formed wheel bodies Wm one by one.

  The second transport path 8 is electrically connected to the molding control unit 11 and detects the first molding wheel Wm1 and the second molding wheel Wm2 passing through the second transport path 8. It is assumed that detection sensors (not shown) are arranged at predetermined intervals along the transport direction X.

Specifically, as shown in FIGS. 6 and 9, the second transport path 8 includes a bottom surface section 81 that is adjacent to the table transport path 71 </ b> L of the rotating mechanism section 7 and forms a floor surface extending in the transport direction X. A pair of side wall members 82 forming side walls opposed to each other in the width direction Y with the bottom surface portion 81 interposed therebetween is formed in a concave groove shape having an upper opening.
As shown in FIG. 9, the pair of side wall members 82 in the second transport path 8 are erected at intervals in the width direction Y slightly larger than the width dimension of one molding wheel body Wm.

  For this reason, as shown in FIG. 7, the ring forming apparatus 1 includes a right conveying path 5R of the first conveying path 5, a right conveying path 6R of the lift mechanism 6, and a rotating mechanism 7 in plan view. A conveyance path that is continuous along the conveyance direction X is configured by the conveyance stop path 71R, and includes a left conveyance path 5L of the first conveyance path 5, a left conveyance path 6L of the lift mechanism 6, and a table of the rotation mechanism 7. The transport path 71 </ b> L and the second transport path 8 constitute a continuous transport path along the transport direction X.

  In addition, as shown in FIGS. 2 and 3, the press forming unit 9 cooperates with a forming control unit 11 described below to form the first forming wheel Wm <b> 1 conveyed through the second conveying path 8, and The second forming wheel body Wm2 is formed by press forming in this order by press forming to form a press forming means for obtaining the outer ring Ro.

Since the press-formed portion 9 is a well-known technique, a detailed description thereof will be omitted. For example, the press-formed portion 9 includes an inner diameter, an outer diameter, a width dimension, a roundness of an outer peripheral surface, and a raceway surface of a formed annular body Wm. The first forming wheel Wm1 and the second forming wheel Wm2 are formed by press forming so-called sizing so that the roundness of the inner peripheral surface or the like falls within a desired dimensional range. is there.
Note that the press forming section 9 press-forms the end surface S on the thick section side as a reference surface of the first forming wheel Wm1 and the second forming wheel Wm2.

Further, as shown in FIG. 2, the carry-out path 10 is arranged adjacent to the press forming section 9 and in a state of being inclined along the carrying direction X.
Specifically, the carry-out path 10 has an opening at the top, a bottom surface (not shown) serving as a bottom surface located below the press forming unit 9, and a side wall facing the width direction Y across the bottom surface. A pair of side walls (not shown) is formed in a concave groove shape with an upper opening.

  Further, as shown in FIG. 3, the molding control unit 11 is configured by a hardware configuration such as a CPU and a memory (not shown) and a software configuration such as programs and data, and is connected via a predetermined bus. It has a function of controlling the operations of the feeding mechanism unit 3, the rolling forming unit 4, the lift mechanism unit 6, the rotating mechanism unit 7, and the press forming unit 9, respectively.

  With the above-described configuration, the ring forming apparatus 1 receives input of a pair of annular element bodies Wo in which the end faces S (see FIG. 1) of the annular element bodies Wo on the cross-section thick side are in contact with each other, and A step of carrying in the inside, a step of integrally expanding the diameter of a set of annular element bodies Wo in which the end faces S are in contact with each other to obtain a pair of formed ring bodies Wm, It is possible to continuously perform a step of obtaining the outer ring Ro by press forming one by one and a step of carrying out the outer ring Ro one by one to the outside of the apparatus.

  Subsequently, a method of forming the annular body Wo in the ring forming apparatus 1 having the above-described configuration to obtain the outer ring Ro of the tapered bearing will be described. In the ring forming apparatus 1, the hook member 31 of the loading mechanism 3 is located above, the mandrel 41 of the rolling forming section 4 is located on the right side in the width direction Y in the transport direction X, and the forming roll 42 is In a plan view, the mandrel 41 is located at a position separated from the mandrel 41 in a direction opposite to the transport direction X.

  First, an operator puts a pair of annular element bodies Wo having the end faces S in contact with each other into the carry-in path 2 with the axial direction being substantially horizontal. At this time, the paired annular element bodies Wo that have been input move in the transport direction X while rotating (rolling) on the carry-in path 2 or slide in the carry-in path 2 in the transport direction X. By moving, it is conveyed to the input mechanism 3 which is the next step.

  When a pair of annular element bodies Wo in which the end faces S are in contact with each other abut on the hook member 31 of the input mechanism 3, the input mechanism 3 is controlled by the forming controller 11 as shown in FIG. Then, the actuator is operated to move the hook member 31 downward. At this time, the paired annular bodies Wo move downward while being clamped by the hook member 31 and the introduction guide portion 32.

  Then, as shown by the two-dot chain line in FIG. 4, the radial center of the pair of annular bodies Wo and the vertical center at which the axial center of the mandrel 41 of the rolling forming part 4 substantially coincides with each other. When the pair of annular bodies Wo is lowered, the rolling forming unit 4 is controlled by the forming control unit 11 to move the rolling forming unit 4 from the right to the left in the width direction Y in the transport direction X in plan view, as shown in FIG. The mandrel 41 is moved toward, and the mandrel 41 is inserted into the inner space of the pair of annular bodies Wo.

  Further, under the control of the forming control unit 11, as shown in FIG. 5, the rolling forming unit 4 moves the forming roll 42 into the mandrel 41 until the outer surface forming unit 42b comes into contact with the outer peripheral surface of the annular body Wo in plan view. The mandrel 41 and the forming roll 42 pinch the pair of annular bodies Wo. When the paired annular element bodies Wo are sandwiched between the mandrel 41 and the forming roll 42, under the control of the forming control section 11, the input mechanism section 3 operates the actuator section to raise the hook member 31.

  Thereafter, under the control of the forming control unit 11, the rolling forming unit 4 rotates the drive motor 44 connected to the forming roll 42 and the drive motor 45 connected to the auxiliary roller 43 at a predetermined number of rotations. At this time, since the mandrel 41 is rotated by the auxiliary roller 43, the pair of annular bodies Wo is rotated while being sandwiched between the mandrel 41 and the forming roll.

  When the mandrel 41 and the forming roll 42 start rotating, under the control of the forming control unit 11, the rolling forming unit 4 gradually moves the forming roll 42 toward the mandrel 41 in a plan view as shown in FIG. Then, the two pairs of annular element bodies Wo are integrally pressed. As a result, the pair of annular bodies Wo are integrally pressed while rotating, so that the inner and outer diameters are increased.

  When the forming roll 42 moves to a position where the end surface forming portion 42c of the forming roll 42 comes into contact with the enlarged diameter portion of the mandrel 41, the rolling forming portion 4 is formed in a direction away from the mandrel 41 under the control of the forming control portion 11. By moving the roll 42 and moving the mandrel 41 toward the right side in the width direction Y in the transport direction X, a pair of formed wheel bodies Wm formed to the desired inner and outer diameters and width dimensions. To the first transport path 5.

  The paired forming wheel bodies Wm carried out to the first transport path 5 move in the transport direction X while rotating on the first transport path 5, or are transported by sliding on the first transport path 5. By moving in the direction X, it is transported to the lift mechanism 6 which is the next step.

  At this time, when contacting with the central wall 53 of the first transport path 5, the paired forming wheel bodies Wm are separated from each other in the width direction Y as shown in FIG. Is guided to the left conveying path 5L, and the other forming wheel Wm is guided to the right conveying path 5R. In other words, the pair of forming wheel bodies Wm conveyed in a set state are first formed wheel bodies Wm1 conveyed through the left conveying path 5L by the central wall 53 of the first conveying path 5. And the second formed wheel Wm2 conveyed through the right conveyance path 5R.

  The first forming wheel Wm1 and the second forming wheel Wm2 conveyed through the right conveying path 5R and the left conveying path 5L of the first conveying path 5 are respectively connected to the right conveying path 6R of the lift mechanism 6. When reaching the left conveying path 6L, under the control of the molding control section 11, the lift mechanism section 6 operates the lifting / lowering actuator section 64 to move the lifting / lowering table 61 to the inclination of the lift guide member 63 as shown in FIG. It is raised to the floor 63b.

When the lifting table 61 is raised, the first forming wheel Wm1 and the second forming wheel Wm2 are moved from the lift mechanism 6 to the rotation mechanism 7 by the potential energy as shown in FIGS. Moving.
At this time, the first forming wheel Wm1 that has entered the table transfer path 71L of the rotating mechanism section 7 from the left transfer path 6L of the lift mechanism section 6 passes through the table transfer path 71L as shown in FIG. The sheet is directly conveyed to the two conveying path 8.

  On the other hand, as shown in FIG. 9, the second forming wheel Wm2 that has entered the transport stop path 71R of the rotating mechanism section 7 from the right transport path 6R of the lift mechanism section 6 is moved in the transport direction X by the regulating section 71d. Movement is regulated.

  When the forming control unit 11 detects that the first forming wheel Wm1 has moved to the second transport path 8, the turning mechanism unit 7 is rotated by the control of the forming control unit 11, as shown in FIG. By rotating the unit 73, the rotary table 71 is rotated 180 degrees clockwise in plan view. At this time, the arc-shaped wall member 72 of the rotating mechanism 7 guides the rotation of the second formed wheel Wm2 while restricting the second formed wheel Wm2 from jumping out due to centrifugal force.

  When the rotary table 71 is rotated by 180 degrees clockwise in a plan view, the transport stop path 71R of the rotating mechanism section 7 is located between the left transport path 6L of the lift mechanism section 6 and the second transport path 8; As shown in FIG. 9, the second formed wheel body Wm2 moves from the transport stop path 71R to the second transport path 8 by centrifugal force and potential energy.

  Thereafter, when the forming control unit 11 detects that the first forming wheel Wm1 conveyed to the second conveying path 8 has reached the press forming unit 9 before the second forming wheel Wm2, the forming control unit 11 Under the control of 11, the press forming section 9 forms the first formed wheel body Wm1 into a shape having desired outer diameter E, inner diameter e, and width dimension h by press forming, and then forms the outer ring of the tapered bearing. It is carried out to the carry-out path 10 as Ro.

  When the outer ring Ro formed from the first formed wheel Wm1 is discharged, the press forming unit 9 controls the second formed wheel by press forming similarly to the first formed wheel Wm1 under the control of the forming controller 11. The body Wm2 is formed into a shape having a desired outer diameter E, inner diameter e, and width dimension h, and then is carried out to the carry-out path 10 as an outer ring Ro.

  The outer ring Ro carried out to the carrying-out path 10 moves in the carrying direction X while rotating on the carrying-out path 10, or moves in the carrying direction X so as to slide on the carrying-out path 10, thereby forming the ring forming apparatus 1. It is carried out of the outside.

  As described above, the ring forming apparatus 1 for forming a pair of annular element bodies Wo formed in a substantially annular shape having substantially the same inner and outer diameters into a desired ring shape is provided by the end face on the cross section thick side in the axial direction. Rolling forming in which a pair of annular element bodies Wo in which S are brought into contact with each other are integrally expanded to a desired diameter to obtain a first molded ring body Wm1 and a second molded ring body Wm2. The section 4, a second conveying path 8 for conveying the first forming wheel Wm1 in the conveying direction X, and a virtual straight line substantially perpendicular to the conveying direction X in the radial direction of the second forming wheel Wm2. By providing a rotating mechanism 7 for rotating the second formed wheel Wm2 as a shaft and unloading the second formed wheel Wm2 to the second conveying path 8, a pair of annular element bodies Wo is formed in a cross section in the axial direction. Even when the diameters are increased integrally with the end surfaces S on the thick side in contact with each other, the Without providing the press-molding section 9 in response to the next step, it is possible to perform press forming.

  More specifically, the ring forming apparatus 1 causes the first forming wheel Wm1 and the second forming wheel Wm2 whose diameters have been expanded to be sequentially transferred to the second conveying path 8 without interruption by the rotation mechanism unit 7. It can be transported continuously.

  At this time, since the rotating mechanism 7 rotates the second forming wheel Wm2 to carry it out to the second transport path 8, the ring forming apparatus 1 uses the second forming wheel Wm2 in the second transport path 8. The direction of the end face S on the thick section in Wm2 can be the same as the direction of the end face S on the thick section in the first molded wheel body Wm1.

  Thus, the ring forming apparatus 1 can expand the pair of annular element bodies Wo integrally in a state where the end faces S on the thicker section in the axial direction are in contact with each other, The diameter-formed first formed wheel Wm1 and second formed wheel Wm2 can be sequentially conveyed with the end faces aligned.

  For this reason, when the first forming wheel Wm1 and the second forming wheel Wm2 are press-formed in the press forming unit 9, the ring forming apparatus 1 includes a press machine corresponding to the first forming wheel Wm1. The first formed wheel Wm1 and the second formed wheel Wm2 can be press-formed without providing a press corresponding to the second formed wheel Wm2.

  Further, when the first forming wheel Wm1 and the second forming wheel Wm2 are press-formed in the press forming unit 9, the ring forming apparatus 1 is configured such that the end face S on the cross section thick side in the axial direction is in the same direction. Since the oriented first forming wheel Wm1 and the second forming wheel Wm2 can be press-formed using the end surface S on the cross-section thick side as a reference surface, both the efficiency of press forming and the forming accuracy can be achieved. Can be improved.

  A first forming wheel body Wm1 disposed between the rolling forming section 4 and the rotating mechanism section 7 and having the end surfaces S on the thicker section in the axial direction abutting each other, and a second forming wheel body Wm1. A first transport path 5 for integrally transporting the forming wheel Wm2 in the transport direction X, a first forming wheel Wm1, and a second forming wheel Wm2 rotated by the rotating mechanism unit 7; And a second transport path 8 which is a transport path for transporting in this order, the first transport path 5 is erected along the transport direction X, and the first molded wheel body Wm1 has a thick section in section. The ring forming apparatus 1 is provided in the first transport path 5 in the axial direction by providing the central wall portion 53 which abuts on the boundary between the end face S of the second forming wheel Wm2 and the end face S on the thicker section in the second forming wheel body Wm2. Forming wheel body Wm1 and second forming wheel in a state where end surfaces S on the cross-section thicker side in FIG. And wm2, may be spaced apart axially by a central wall portion 53.

  For this reason, the ring forming apparatus 1 can prevent the first formed wheel Wm1 and the second formed wheel Wm2 from being integrally transferred to the second transfer path 8. In other words, the ring forming apparatus 1 can guide the first forming wheel Wm1 toward the second transport path 8 by the central wall portion 53 and also direct the second forming wheel Wm2 to the rotating mechanism unit 7. I can guide you.

  Accordingly, the ring forming apparatus 1 moves the first forming wheel Wm1 and the second forming wheel Wm2 in this order through the second transport path 8 by cooperation of the rotating mechanism 7 and the center wall 53. Can be carried out stably.

  In addition, the rotation mechanism unit 7 includes a rotation table 71 that rotates about a rotation axis, the rotation table 71 includes a table conveyance path 71L that conveys the first forming wheel Wm1 to the second conveyance path 8, and a table conveyance path 71L. The ring forming device 1 can rotate the rotary table 71 only by rotating the rotary table 71 by being provided with the restricting portion 71d which is adjacent to the conveying path 71L and restricts the movement of the second forming wheel Wm2 in the conveying direction X. The change of the direction of the second forming wheel Wm2 and the carrying out of the second forming wheel Wm2 to the second transport path 8 can be performed substantially simultaneously.

  Further, the first forming wheel Wm1 can be directly conveyed to the second conveying path 8 via the table conveying path 71L, so that the ring forming apparatus 1 includes the first forming wheel Wm1 and the second forming wheel Wm1. The wheel body Wm2 can be efficiently transported by the second transport path 8 in this order.

  In addition, the annular element body Wo has a configuration in which a cross-sectional shape in a cross-section along the axial direction is formed to have a cross-sectional shape that gradually increases in thickness in the axial direction, and the rolling molded portion 4 is formed as an end face on the cross-section thick side. The ring forming apparatus 1 integrally expands the diameter of the two sets of annular bodies Wo by integrally expanding the diameter of the two sets of annular bodies Wo in which the S are in contact with each other. In doing so, due to the component force of the load acting on the peripheral surface of one annular element body Wo and the load acting on the peripheral surface of the other annular element body Wo, the two annular element bodies Wo are caused by the progress of the diameter expansion. Thus, it is possible to prevent separation in the axial direction.

For this reason, the ring forming apparatus 1 can efficiently form a pair of annular element bodies Wo into a desired shape.
Therefore, the ring forming apparatus 1 forms the first formed wheel Wm1 and the second formed wheel Wm2 by expanding the diameter, and transports the first formed wheel Wm1 and the second formed wheel Wm2. Can be performed efficiently.

  Further, a ring forming method using a forming apparatus for forming a pair of annular element bodies Wo formed in a substantially annular shape having substantially the same inner and outer diameters into a desired ring shape is performed by using a ring forming method on the thicker section in the axial direction. A pair of annular element bodies Wo having the end faces S abutted with each other are integrally expanded to a desired diameter to obtain a first molded wheel body Wm1 and a second molded wheel body Wm2. A diameter step, a transport step of transporting the first forming wheel Wm1 in the transport direction X via the second transport path 8, and a radial direction of the second forming wheel Wm2, which is substantially orthogonal to the transport direction X. The rotation of the second formed wheel body Wm2 about the virtual straight line to be rotated as the rotation axis, and the rotation unloading step of unloading to the second transport path 8, the two sets of annular element bodies Wo are Even when the diameters are integrally increased in a state where the end faces S on the cross-section thick side are in contact with each other, each direction is different. Without providing the press-molding section 9 in response to the next step, it is possible to perform press forming.

In correspondence between the configuration of the present invention and the above embodiment,
One end face of the present invention and the end face on the cross-section thick side correspond to the end face S of the embodiment,
Similarly,
The diameter expanding means corresponds to the rolling forming unit 4 controlled by the forming control unit 11,
The predetermined transport direction corresponds to the transport direction X,
The transport path and the second transport path correspond to the second transport path 8,
The rotation carrying-out means corresponds to the rotation mechanism 7 controlled by the molding control unit 11,
The contact portion corresponds to the central wall portion 53,
The present invention is not limited to only the configuration of the above-described embodiment, but can obtain many embodiments.

  For example, in the above-described embodiment, the direction that is distant in the substantially horizontal direction and that faces downward is the transport direction X in which the annular element body Wo and the formed wheel body Wm are transported, but is not limited thereto. 2 and the carry-out path 10 may be arranged at substantially the same vertical position, and the direction toward the far side in the substantially horizontal direction may be set as the transport direction X in which the annular element body Wo and the forming wheel Wm are transported.

  In addition, the ring element Wo or the formed wheel Wm moves while rotating on the carry-in path 2, the first carry path 5, the second carry path 8, and the carry-out path 10, or the carry-in path 2, the first carry path 5, the second transport path 8 and the transport path 10 are slidably moved. However, the present invention is not limited to this. The load path 2, the first transport path 5, the second transport path 8, and the transport path 10 May be configured by a belt conveyor or the like that conveys the annular element body Wo or the formed wheel body Wm.

  Further, the first formed wheel Wm1 and the second formed wheel Wm2 conveyed via the second conveying path 8 are formed by press forming, but the present invention is not limited to this. The first formed wheel Wm1 and the second formed wheel Wm2 conveyed through the path 8 may be formed by cutting.

  In addition, the annular element body Wo and the formed wheel body Wm are configured to be transported in a state where the axial direction is substantially horizontal. However, the configuration is not limited thereto. Good. In this case, one of the two forming wheel bodies Wm (the first forming wheel body Wm1 and the second forming wheel body Wm2) is directly conveyed to the second conveying path 8 in the rotating mechanism unit 7. In the radial direction of the other forming wheel Wm, the other forming wheel Wm is substantially clockwise in front view or substantially counterclockwise in front view, with a virtual straight line substantially orthogonal to the transport direction X as a rotation axis. It is rotated and carried out to the second conveyance path 8.

  Further, although the first transport path 5 is arranged between the rolling forming unit 4 and the rotating mechanism unit 7, the present invention is not limited to this, and the rotating mechanism unit 7 is arranged below the rolling forming unit 4. A configuration may be adopted. Alternatively, the rolling forming section 4 and the rotating mechanism section 7 are integrally configured to form a pair of annular element bodies Wo by expanding the diameter, carry out the first forming wheel body Wm1, and perform the second forming. The rotation of the forming wheel Wm2 may be continuously performed.

Further, the ring forming apparatus 1 for obtaining the outer ring Ro of the tapered bearing is described. However, the ring forming apparatus is not limited to this, and may be a ring forming apparatus for obtaining the inner ring Ri of the tapered bearing.
More specifically, as shown in FIGS. 10 (a) and 10 (b) showing explanatory views for explaining the annular body Wi and the inner ring Ri used in another ring forming apparatus, the inner diameter is constant and the outer diameter is constant. The annular element body Wi having a substantially annular shape as viewed from the front and having a gradually enlarged diameter is formed into an inner ring Ri as shown in FIGS. 10C and 10D by cold rolling and press forming. .

  In this case, even in this case, as shown in FIG. 10E, the pair of annular element bodies Wi has an end surface on the cross-section thick side that becomes thick in a vertical cross section along the axial direction G. In a state where S is brought into contact, it is put into a ring forming apparatus.

  The present invention is not limited to the outer ring and inner ring of a tapered bearing (tapered roller bearing). Can be applied to an apparatus for molding a frustoconical sleeve or the like.

DESCRIPTION OF SYMBOLS 1 ... Ring forming apparatus 4 ... Rolling forming part 5 ... First conveying path 7 ... Rotating mechanism part 8 ... Second conveying path 11 ... Forming control part 53 ... Central wall part 71 ... Rotating table 71d ... Regulator 71L ... Table conveying Path G ... Axial direction S ... End face Wi ... Circular body Wo ... Circular body Wm1 ... First forming wheel Wm2 ... Second forming wheel X ... Conveying direction

Claims (5)

A ring forming apparatus for forming a pair of annular bodies formed in a substantially annular shape having substantially the same inner and outer diameters into a desired ring shape,
A pair of annular bodies each having one end face abutting in the axial direction are integrally expanded to a desired diameter to form a first molded wheel and a second molded wheel. Means for increasing the diameter,
A conveying path for conveying the first forming wheel body in a predetermined conveying direction;
Rotating the second formed wheel in a radial direction of the second formed wheel in a direction substantially perpendicular to the predetermined conveying direction as a rotation axis, and rotating the second formed wheel to the conveying path; A ring forming apparatus provided with a carrying-out means. The first forming ring body and the second forming ring body, which are disposed between the diameter-enlarging means and the rotary carrying-out means, and have one end faces in contact with each other in the axial direction, A first transport path that integrally transports in the predetermined transport direction;
A second conveying path, which is the conveying path that conveys the first forming wheel, and the second forming wheel rotated by the rotating / unloading means in this order,
The first transport path includes:
And a contact portion that stands up along the predetermined transport direction and abuts on a boundary between the one end surface of the first forming wheel and the one end surface of the second forming wheel. The ring forming apparatus according to claim 1. The rotating carrying means,
A rotating table that rotates about the rotation axis,
The turntable is
A table transport path for transporting the first forming wheel to the transport path;
The ring forming apparatus according to claim 1, further comprising: a regulating portion that is adjacent to the table conveying path and that restricts movement of the second forming wheel in the predetermined conveying direction. The annular element has a configuration in which a cross-sectional shape in a cross-section along the axial direction is formed in a cross-sectional shape that gradually becomes thicker along the axial direction,
The expanding means,
The ring forming apparatus according to any one of claims 1 to 3, wherein a pair of the annular element bodies, whose end surfaces on the cross-section thick side are in contact with each other, are integrally expanded in diameter. A ring forming method using a forming apparatus for forming a pair of annular element bodies formed in a substantially annular shape having substantially the same inner and outer diameters into a desired ring shape,
A pair of annular bodies each having one end face abutting in the axial direction are integrally expanded to a desired diameter to form a first molded wheel and a second molded wheel. An expanding step to obtain,
A conveying step of conveying the first formed wheel body in a predetermined conveying direction via a conveying path;
Rotating the second formed wheel in a radial direction of the second formed wheel in a direction substantially perpendicular to the predetermined conveying direction as a rotation axis, and rotating the second formed wheel to the conveying path; A ring forming method including an unloading step.

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