JP3446570B2 - Manufacturing method and manufacturing apparatus for assembly with rotary shaft - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing method and a manufacturing apparatus of a rotary shaft assembly for manufacturing a rotary shaft assembly in which an assembly of a plurality of parts is welded to an end of a rotary shaft. .

[0002]

2. Description of the Related Art A rotary shaft assembly for manufacturing a rotary shaft assembly in which an assembly of a plurality of parts is welded to an end of a rotary shaft is known. When manufacturing such an assembly with a rotary shaft, first, of a plurality of components constituting the assembly, friction welding or the like is performed before a component directly welded to the end of the rotary shaft is assembled as an assembly. Is welded to the end of the rotary shaft, and then the assembly with the rotary shaft is completed by assembling the assembly from the welded parts and other parts. For example, this is a method for manufacturing a universal joint composed of a plurality of parts and a propeller shaft composed of a rotary shaft. First, the yoke of the universal joint of the propeller shaft described in Japanese Patent Laid-Open No. 4-113027 and the rotary shaft are friction-welded. Then, the joint and the like at the other end of the universal joint at one end of the rotary shaft are assembled.

[0003]

However, in such a conventional method of manufacturing an assembly with a rotary shaft, the manufacturing equipment is changed or its setup is changed due to the change of the type of the rotary shaft to be assembled. However, there is a disadvantage that the manufacturing cost becomes high. For example, when the length of the rotary shaft of the rotary shaft assembly is different, the rotary shaft is already welded to some of the parts constituting the assembly when the above-mentioned assembly is assembled. However, because it is necessary to change the manufacturing equipment or hold multiple types of specialized jigs to hold multiple rotating shafts with different lengths, changing the manufacturing equipment and Manufacturing costs will increase due to the need for setup replacement work and equipment investment for changing the dedicated jig.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an assembly with a rotating shaft which can suppress an increase in manufacturing cost due to a change in the type of the assembly with a rotating shaft. To obtain a manufacturing method and a manufacturing apparatus.

[0005]

[Means for Solving the Problems] The first aspect of the present invention for achieving the above object is to provide an end of a rotary shaft.
A method of manufacturing an assembly with a rotating shaft, wherein an end face of a welded portion of an assembly composed of a plurality of parts is welded to a surface , (a) an assembly step of assembling the assembly from the plurality of parts, and (b) The welded part of the assembly assembled by the assembly process
Has a grasped part with a similar shape having the same diameter dimension
Process of gripping with one of multiple types of gripping jigs
And (c) using a common jig holding device,
By grasping the grasping part,
The process of gripping the welded part of the assembly, and (d) the rotary shaft holding device.
Holding the rotary shaft by using a stand, (e) the jig
The set gripped by the gripping device via the gripping jig
It is held by the end face of the three-dimensional welded part and the rotary shaft holding device.
And a welding step of welding the end face of the rotating shaft to each other in a state where their respective axial centers are aligned with each other.

[0006]

[Effect of the first invention] By doing so, a common jig holding
Use the device to grasp the welded part of the assembly through the gripping jig.
While being held, the rotary shaft holding device is used to hold the rotary shaft.
Be held. Therefore, the assembly composed of a plurality of parts assembled by the assembly process and the end of the rotary shaft are
Since they are welded to each other in the state where their mutual axes coincide with each other in the welding process, for example, the length and diameter of the rotating shaft ,
Even if the size of the solid body changes, at least the contents of the assembly process for assembling the assembly do not change, so there is no need to change the manufacturing equipment used for the assembly process or the setup change, and as a whole. Manufacturing cost can be suppressed.

[0007]

[The second means for solving the problems] It is an gist of an apparatus for manufacturing a rotary shaft with an assembly for carrying out the method for manufacturing the rotating shaft with the assembly of the first invention, (a) the same diameter Dimensions
A plurality of types of gripping jigs for holding a plurality of types of the assembly, and
(b) a common jig gripping device that grips a gripped jig holding part that holds the assembly , (c) a rotary shaft holding device that holds the rotary shaft, and (d) the common jig The gripping device and the rotary shaft holding device are relatively rotated around their rotary shafts in a state where their rotary shafts are aligned with each other and are brought closer to each other, whereby the end face of the rotary shaft and the welded portion of the assembly. And a friction welding device for frictionally welding the end faces of the two to each other.

[0008]

According to this structure, the assembled assembly is gripped by the gripping jig, and the assembly and the rotary shaft are welded to each other by the friction welding device. Even if the length of the assembly changes, at least the contents of the assembly process for assembling the assembly do not change, so there is no need to change the manufacturing equipment used for the assembly process or change the setup, and the overall manufacturing The cost can be suppressed. Moreover, the assembly and the rotary shaft have gripped portions having the same diameter and the same shape, and a plurality of types of gripping jigs for holding a plurality of types of assemblies are respectively gripped. Part is gripped by a common jig gripping device, and the rotary shaft is held by the rotary shaft holding device, the common jig gripping device and the rotary shaft holding device are connected to each other by the friction welding device. Since the cores can be frictionally pressure-welded to each other by rotating relative to each other around their axes and approaching each other in a state where the cores are aligned with each other , the shape such as the size of the assembly is changed. Even in this case, the common jig gripping device and the friction welding device can be used without any change by simply using the gripping jig corresponding to the assembly after the shape change. As compared with the case to be held only in the friction welding apparatus via the tool, the manufacturing cost can be suppressed as a whole.

[0009]

Another aspect of the present invention is preferably such that the gripping jig grips a part of the assembly that is directly welded to the end of the rotary shaft. With this configuration, the reaction force generated during the friction welding by the friction welding device acts on the components of the assembly that are directly welded to the rotary shaft, and the other components or assembly of the assembly. Since it is possible to suppress the transmission of force due to friction welding between the three-dimensional components, there is an advantage that the assembly accuracy of the assembly can be secured.

[0010]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an assembly with a rotary shaft, that is, a so-called three-joint type propeller shaft 18 manufactured by a manufacturing apparatus for carrying out the method for manufacturing the assembly with a rotary shaft of this embodiment.
It is a top view which shows a part of vehicle containing. The propeller shaft 18 includes a first rotary shaft assembly 10 and a second rotary shaft assembly 12 which are connected at one end thereof. The other end of the rotary shaft assembly 12 is provided with a vehicle transmission 14 and a differential gear unit 1, respectively.
6 is for connecting the output of an engine (not shown) to the drive wheels.

The first rotating shaft-equipped assembly 10 is an assembly consisting of a plurality of parts, that is, a first joint member 2 at both ends of a steel rotating shaft 20 which is a long circular pipe.
The second and second joint members 24 are welded together by friction pressure welding described later with their respective axes aligned, and are rotated via a center bearing device 86 described later provided in the second joint member 24. Possible body 26
Supported by.

The first joint member 22 constitutes a so-called universal joint or cross joint, and as shown in the front view of FIG. 2, the left side view of FIG. 3 and the right side view of FIG. 4, respectively. First yoke member 38, second
A yoke member 46 and a cross-shaped spider 48 that connects the yoke members 46 are mainly configured.

The first yoke member 38 has a spline 30 formed on its inner surface for connection with the output shaft of the transmission 14, and the transmission 14
A cylindrical connecting portion 34, which is concentrically fixed with a thin disk-shaped cover 32 for protecting the connecting portion with and from dust and the like, is provided at one end thereof, and the other end is bifurcated. 1
A yoke 36 is provided. The central axis of the first yoke member 3 is located at two locations facing each other with the axis of the first yoke 36 interposed therebetween.
Stepped through hole 5 formed so as to be orthogonal to the axis of 8
2 are formed respectively.

The second yoke member 46 has, at one end thereof, a second yoke 40 which is paired with the first yoke 36.
The other end is provided with a cylindrical welded portion 44 joined to the rotary shaft 20 at the annular end surface 42 by friction welding. Through holes 54, which are similar to the through holes 52 and are formed so that their central axes are orthogonal to the axis of the second yoke member 46, are formed at two locations facing each other across the axis of the second yoke 40. Has been done.

The spider 48 is also referred to as a cruciform shaft or a cross, and the tip ends of four stepped shafts 50 of the same shape formed at right angles to each other in one plane have through holes 52 of the first yoke 36. And the through hole 5 of the second yoke 40
4 are rotatably supported by the first yoke 36 or the second yoke 40 via the four bearing devices 56 provided in the first and second yoke members 38 and 44, respectively. The rotational force is transmitted between them, and the rotary shafts of the first yoke member 38 and the second yoke member 44 are allowed to swing with respect to each other within a plane including the two rotary shafts.

The bearing device 56 includes the through hole 5
2 or the bottomed cylindrical cup 60 fitted in the through hole 54, the inner peripheral surface of the cup 60 and the stepped shaft 50.
And a plurality of cylindrical needles 62 that are rotatably arranged in a gap with the outer peripheral surface of the. After the cup 60 is temporarily press-fitted into the through hole 52 or the through hole 54, the outer end portion of the through hole 52 or the through hole 54 is plastic at the plurality of caulked portions 64 (eight places in this embodiment). It is prohibited to escape from the through hole 52 or the through hole 54 by being deformed.

The second joint member 24, as shown in a front view of FIG. 5 and a sectional view taken along line VI-VI of FIG. A second member 84 fastened and fixed to one end of the first member 78.
And a center bearing device 86 for rotatably supporting the first member 78 and the second member 84.

The first member 78 has an annular end surface 70 at one end thereof, and a male screw portion 72 and a spline 74 are formed adjacent to each other at the other end in order from the tip end. Center bearing device 86 in the middle
Is a columnar steel member having a step, to which a deflector 76 for protecting the bearing 90 and the second annular member 94 from gravel or the like is fixed by welding or the like.

The second member 84 is provided with an inner peripheral tooth 80 at one end thereof for engaging with the spline 74 and for inhibiting relative rotation with the first member 78 about the axis, and the other end thereof. Is a cylindrical steel member having an annular plate-shaped flange portion 82 projecting to the outer periphery for connection with a flange portion 112 of the second rotary shaft assembly 12 described later.

The center bearing device 86 is mounted concentrically with the first member 78 at an axially intermediate position between the position where the spline 74 of the first member 78 is formed and the position where the deflector 76 is fixed. A bearing 90 having an inner ring fitted at an intermediate position in the axial direction between the position where the spline 74 is formed and the position where the deflector 76 is fixed, and a penetrating hole that is non-detachably fitted to the outer ring of the bearing 90. Steel first annular member 9 with holes
2, a second annular member 94, which is a rubber cushioning material that is permanently attached to the outer periphery of the first annular member 92, and an outer periphery of the second annular member 94, which is permanently attached to the outer periphery of the second annular member 94. The third annular member 1 made of steel provided with mounting portions 98 for mounting on the mounted portion 96 of the vehicle body 26 shown at two locations on the outer periphery.
00 and the spline 7 of the first member 78.
4 and the spline 80 of the second member 84 are fitted so as not to rotate relative to each other, in order to prevent the nut 102 from being loosely screwed after the nut 102 is firmly screwed to the male screw portion 72. It is clamped by the first member 78 and the second member 84 by performing a crimping process (not shown). As described above, since the center bearing device 86 includes the second annular member 94 that is a cushioning material, the transmission of vibration between the second joint member 24 and the vehicle body 26 is preferably suppressed.

As shown in FIG. 1, the second rotary shaft assembly 12 is a flange for connecting the rotary shaft 110, which is a long circular tube, and the flange portion 82 of the second joint member 24. A third joint member 114, which is provided with a portion 112 and is welded to one end portion of the rotary shaft 110 in place of the connecting portion 34 of the first joint member 22 by friction welding described later, and the first joint member 22. It has a fourth joint member 116 which is a similar member and is welded to the other end of the rotary shaft 110 by friction welding.

Next, the manufacturing process for manufacturing the rotary shaft assembly of the present embodiment described above, that is, the first rotary shaft assembly 10 or the second rotary shaft assembly 12 will be described with reference to FIG.
And it demonstrates using FIG. 7A to 7C are process drawings for explaining the manufacturing process of the assembly with a rotary shaft of the present embodiment, that is, the first assembly 10 with a rotary shaft, and FIG. 8 is a situation in which each process shown in FIG. It is a figure explaining the result of having performed the process.

In FIG. 7, an assembly step A is a step of assembling the first joint member 22 shown in FIGS. 2 to 4, and an assembly step B is the second joint member shown in FIGS. 5 and 6. It is a process of assembling 24. The welding step C is a step of welding the first joint member 22 and the second joint member 24, which are respectively assembled in the assembly step A and the assembly step B, to the rotary shaft 20 by friction welding described later.

In the assembling step A, an assembly is made from a plurality of parts, that is, the first joint member 2 shown in FIGS. 2 to 4.
It is a process for manufacturing 2 and includes a first joint member temporary assembly process A1 and a cup caulking process A2. In the first joint member provisional assembly step A1, the stepped shaft 5 of the spider 48 is inserted into the through holes 52 and 54 of the first yoke member 38 and the second yoke member 46 to which the cover 32 is welded.
0 is inserted into each of them, and the needle 62 is fitted into the gap between the stepped shaft 50 and the inner peripheral surface of the through hole 52 or 54, and then the cup 60 is press-fitted into the through hole 52, 54. The member 22 is temporarily assembled as shown in FIG. In the cup caulking step A2, the through hole 52 or the through hole 5 of the first joint member 22 is used.
8 is plastically deformed by caulking or the like to prevent the cup 60 from coming out of the through hole 52 or the through hole 54. Assembly is performed.

The assembling step B is a step for manufacturing an assembly, that is, the second joint member 24 from a plurality of parts, and includes a deflector fixing step B1, a center bearing device / flange portion temporary assembling step B2, and a nut tightening step. This includes the crimping step B3. In the deflector fixing step B1, the deflector 76 is fixed to the first member 78 by arc welding or the like as shown in FIG. 8 (c). In the center bearing device / flange part temporary assembly process B2,
The inner ring of the bearing 90 of the center bearing device 86 is press-fitted into the first member 78, and then the spline 74 of the first member 78 and the spline 80 of the second member 84 are fitted to each other to obtain the state shown in FIG. 8D. It In the tightening and crimping step B3, the nut 102 is attached to the male screw portion 72 of the first member 78 as shown in FIG.
After being screwed and tightened as shown in (e), a caulking process for inhibiting relative rotation of the male screw portion 72 and the nut 102 around the axis is performed.

In the welding process C, the first joint member 22 and the second joint member 24 assembled by the assembling process A and the assembling process B and the rotary shaft 20 are assembled.
Of the first outer setup jig mounting step C1 and the second outer setup jig mounting step of welding the both end portions of the
An outer setup jig attaching step C2 and a friction welding step C3 are included. In the first outer setup jig attaching step C1, a gripping jig, that is, a first outer setup jig 134 described later is attached to the first joint member 22 as shown in FIG. 8 (f). Second
In the outer setup jig mounting step C2, the second joint member 24
A holding jig, that is, a second outer setup jig 136 described later is shown in FIG.
It is attached as shown in (g). Friction welding process C3
Then, the first outer setup jig 134 and the second outer setup jig 13
6 is gripped by a common jig holding device, that is, a first common chuck 138 and a second common chuck 140 described later, and the rotary shaft 22 is a rotary shaft holding device 142 described later.
The first common chuck 138 and the second common chuck 140 and the rotary shaft holding device 142 are held by
As shown in (h), the rotating shaft 22 and the first joint member 22 are rotated by relatively rotating the rotating shafts with the rotating shafts aligned with each other, and by bringing them closer to each other and pressed. The second joint member 24 is brought into frictional contact with each other.

Next, a manufacturing apparatus for carrying out each manufacturing process of the assembly with rotating shaft of this embodiment shown in FIG. 7, that is, an assembly manufacturing apparatus with rotating shaft 130 will be described with reference to FIGS. 9 to 13. To do.

As shown in FIG. 9 which is a front view of the assembly manufacturing apparatus 130 with a rotating shaft, the assembly manufacturing apparatus 130 has gripped portions 132 having substantially the same diameter and having substantially the same diameter dimension. 1 joint member 22 and 2nd joint member 2
A plurality of types of gripping jigs for holding the first outer setup jig 134 and the second outer setup jig 136, which have the same shape as each other, and the first outer setup jig 134 and the first outer setup jig 134. A common jig gripping device that grips the gripped portion 132 of the second outer setup jig 136, that is, a first common chuck 138 and a second common chuck 140 that have the same configuration as each other.
And a rotary shaft holding device 142 for holding the rotary shaft 20.
And by rotating the common chuck 140 and the rotary shaft holding device 142 relative to each other with their rotary axes aligned with each other and bringing them closer to each other,
Friction welding device 1 for frictionally welding the rotary shaft 20, the first joint member 22, and the second joint member 24 to each other.
44 and.

As shown in FIGS. 10 to 12, the first outer setup jig 134 has a gripped portion 132 having the same cylindrical outer peripheral surface as the second outer setup jig 136, Among the plurality of types of assemblies to be gripped by the first common chuck 138, that is, the components forming the first joint member 22 and the like, those that are directly welded to the rotary shaft 20, that is, the second yoke member 46 are gripped. Thus, a holding jig for holding the first joint member 22 and the like by the first common chuck 138, which is formed so as to be divided with a plane including the axis as a boundary and is combined with each other and has substantially the same shape. It is a cylindrical member composed of members 150 and 152. The first outer setup jig 134 is provided with a through hole 160 at the end portion into which the first yoke 34 of the first joint member 22 is fitted for centering. In addition, in FIG.
FIG. 11 is a front view showing only a portion above the axis of the first gripping member 154, and FIGS. 11 and 12 are side views and right side views as seen from XI-XI in which only the first gripping member 154 is extracted and shown. Is.

The second outer setup jig 136 is the first outer setup jig 13 shown in FIGS. 10 to 12 as described above.
The second common chuck 140, which has the same shape as the fourth common chuck 138 and has the same configuration as the common chuck 138, grips the gripped portion 132.

The first outer setup jig 134 has an inner peripheral surface 174 of a large inner diameter portion 172 located on the tip side of a stepped through hole 170 formed at the end thereof and the first joint member 22.
The relative position of the center of rotation with respect to the first joint member 22 is determined by the contact with the outer peripheral surface 176 of the cylindrical welded portion 44 of the stepped through hole 170. An annular end surface 180 of the inner diameter portion 178 on the large inner diameter portion 172 side and the end surface 42 of the welded portion 44.
By making contact with an annular end surface 182 on the opposite side, relative positioning in the thrust direction with the second joint member 22 is performed, and further, the engagement protrusion 1 formed on the end surface 180.
The engagement of 84 with the notch 186 formed in the weld 44 prevents relative rotation therebetween.

As shown in FIG. 9, the rotary shaft holding device 142 is provided with two holding devices 190 for respectively holding the rotary shaft 20 near both ends thereof. As shown in FIG. 13, which is a side view, each holding device 190 includes a base 192, a top plate 194, two hydraulic cylinders 196 that relatively move the base 192 and the top plate 194 in a vertical direction, and a base. 192 and two V-shaped blocks 198 fixed to the top plate 194.

The two holding devices 190 can be fixed to the bed 210 at any position in the longitudinal direction of the bed 210, which will be described later, of the friction welding device 144, that is, in the axial direction of the rotary shaft 20. Therefore, even when the length of the rotary shaft 20 is different, the vicinity of both ends of the rotary shaft 20 can be reliably held, and the portion to be welded by friction welding can be positioned more accurately. Further, even when the outer diameter of the rotary shaft 20 is different,
Reliable holding can be achieved by changing the V-shaped block 198 to a V-shaped groove having a different depth.

In the friction welding device 144, as shown in FIG. 9, the first common chuck 138 and the second common chuck 140 and the rotary shaft holding device 142 have their rotary axes aligned with each other. In this state, the rotary shaft 20 and the first joint member 22 are rotated by relatively rotating them about their axes and pressing them in a direction in which they approach each other.
And the second joint member 24 are brought into frictional contact with each other, and the first common chuck 13 is provided by an elongated flat plate-shaped bed 210 and an electric motor (not shown) or the like.
8 and the second common chuck 140 are respectively rotated by a first rotary drive device 212 and a second rotary drive device 214.
And the first rotary drive device 212 and the second rotary drive device 214 by an electric motor or the like (not shown).
A first parallel moving device 216 and a second parallel moving device 218 that move relative to each other in the axial direction are provided above.

As described above, according to the present embodiment, an assembly composed of a plurality of parts assembled by the assembling steps A and B, that is, the first joint member 22 and the second joint member 22.
Since the joint member 24 and the end portion of the rotary shaft 20 are welded to each other in the welding step C with their mutual axes aligned, even when the length of the rotary shaft 20 changes, for example. , At least the first joint member 2
Since the contents of the assembling steps A and B for assembling the second and second joint members 24 do not change, there is no need to change the manufacturing equipment used for the assembling steps A and B, or the setup change thereof, and the manufacturing as a whole. The cost can be suppressed.

Further, according to this embodiment, the first joint member 22 and the second joint member 24, which have been assembled, are passed through the first outer setup jig 134 or the second outer setup jig 136. The first joint member 2
Since the second and second joint members 24 and the rotary shaft 20 are welded to each other by the friction welding device 144, at least the first joint member 22 and the second joint member are formed even when the length of the rotary shaft 20 changes. Since the contents of the assembling steps A and B for assembling 24 are not changed, there is no need to change the manufacturing equipment used for the assembling steps A and B or change such as setup change.
The manufacturing cost can be suppressed as a whole.

Further, according to this embodiment, the first joint member 22, the second joint member 24 and the rotary shaft 2 are
0 has gripped portions 132 having shapes that match each other,
A first outer setup jig 134 and a second outer setup jig 1 for holding the first joint member 22 and the second joint member 24.
Reference numeral 36 designates a grasped portion 13 having a common grasped shape.
2 is held by the common first common chuck 138 and second common chuck 140, and the rotary shaft 20 is held by the rotary shaft holding device 142, the common first common chuck 138 and the common first common chuck 138 by the friction welding device 144. The second common chuck 140 and the rotary shaft holding device 142 can be frictionally pressure-welded to each other by relatively rotating the second common chuck 140 and the rotary shaft holding device 142 around their rotary shaft centers and bringing them closer to each other. Therefore, even when the shape of the first joint member 22 or the second joint member 24 is changed, the first joint member after the shape change is performed.
Since the first common chuck 138, the second common chuck 140, and the friction welding device 144 can be used without any change by simply using the outer setup jig corresponding to the joint member 22 or the second joint member 24, For example, the first joint member 22 and the second joint member 24
The manufacturing cost can be suppressed as a whole as compared with the case where is gripped by the friction welding device 144 via only the dedicated jig.

Further, according to this embodiment, the first outer setup jig 134 and the second outer setup jig 136 are included in the components of the first joint member 22 and the second joint member 24. Since at least the end of the rotary shaft 20 is directly welded, that is, the second yoke member 46 and the first member 78 are gripped, it is possible to prevent the friction welding from being performed by the friction welding device 144. The force acts on the second yoke member 46 and the first member 78, and suppresses the transmission of the force due to friction welding between other components of the first joint member 22 and the second joint member 24 and their components. Therefore, there is an advantage that the assembly accuracy of the first joint member 22 and the second joint member 24 can be secured.

Incidentally, the manufacturing of the conventional assembly with a rotary shaft is as follows.
It was performed as shown in FIGS. 14 and 15. 14
[Fig. 15] Fig. 15 is a process diagram for explaining a conventional manufacturing process of a rotary shaft assembly for assembling the first rotary shaft assembly 10, and Fig. 15 shows a situation in which each process shown in Fig. 14 is performed or the process thereof. It is a figure explaining the result of having performed.

First, in step S1 (hereinafter, steps are omitted), a friction welding process is performed as shown in FIG. 15 (a). However, what is frictionally pressure-contacted to the rotary shaft 20 here is the second yoke member 46 of the first joint member 22 which has not been assembled yet, and the second yoke member 46.
The first member 78 of the joint member 24. Next,
In S2 to S4, the same steps as B1 to B3 in FIG. 7 are performed as shown in FIGS. 15B to 15D, and further, in S5 and S6, FIG.
7A and 7F, steps similar to those of A1 and A2 of FIG. 7 are performed. Here, the steps S2 to S6 are different from the manufacturing method of the assembly with a rotating shaft of the present invention in that the rotating shaft 20 is already welded by friction welding. That is, according to the manufacturing method shown in FIG.
Since the steps 2 to S6 must be performed after positioning and holding the rotary shaft 20 as well,
For example, when the length of the rotary shaft 20 is different,
It was necessary to change the jig and device for the positioning and holding each time the length of the rotary shaft 20 changed.
On the other hand, according to the manufacturing method of the assembly with the rotating shaft of the present embodiment, the first joint member 22 and the second joint member 24, which have already been assembled, have the rotating shaft 2
Since it is welded to No. 0 by friction welding, there is no need to change the positioning device and jig.

Although one embodiment of the present invention has been described above with reference to the drawings, the present invention can be implemented as a mode different from those embodiments.

For example, in the above-described embodiment, the first joint member 22 and the second joint member 24 are used.
The welding between the rotary shaft 20 and the rotary shaft 20 is performed by friction welding, but may be performed by other welding means such as arc welding or TIG welding.

In the above-mentioned embodiment, the first
The outer setup jig 134 and the second outer setup jig 136 used the same ones, but they are not always necessary when carrying out the method of manufacturing an assembly with a rotary shaft of the present invention. The first common chuck 138 and the second common chuck 14
Any shape and size may be used as long as it can be held by 0 (these are the same).

Further, in the above-described embodiment, when the friction welding is performed, the rotary shaft 20 is held by the rotary shaft holding device 142 so as not to be rotatable about the shaft center, and the first joint member 22 and the first joint member 22. Although the 2nd joint member 24 was made to rotate, the 1st joint member 22 and the 2nd joint member 24 may be made non-rotatably fixed by rotating the rotating shaft 20 around the axial center. Further, all of the rotary shaft 20, the first joint member 22, and the second joint member 24 may be held so as to be rotatable around the axis.

In the above-described embodiment, the first rotary shaft assembly 10 in which the first joint member 22 and the second joint member 24, which are assemblies of a plurality of parts, are welded to both ends, and The second rotary shaft assembly 12 in which the third joint member 114 and the fourth joint member 116, which are the above-mentioned assembly, are welded to both ends, has been described as the rotary shaft assembly, but only one end of the rotary shaft. It does not matter if the assembly consisting of a plurality of parts is welded.

What has been described above is merely an embodiment of the present invention, and the present invention can be modified in various ways without departing from the spirit thereof.

[Brief description of drawings]

FIG. 1 is a plan view showing a part of a vehicle including a propeller shaft that is an example of an assembly with a rotating shaft manufactured by a manufacturing apparatus that carries out a method of manufacturing an assembly with a rotating shaft according to an embodiment of the present invention.

FIG. 2 is a front view illustrating a first assembly with a rotary shaft that constitutes the propeller shaft of FIG.

3 is a left side view of the assembly with the first rotating shaft of FIG. 2. FIG.

4 is a right side view of the assembly with the first rotating shaft of FIG. 2. FIG.

FIG. 5 is a front view illustrating a second assembly with a rotary shaft that constitutes the propeller shaft of FIG. 1.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a process drawing for explaining the manufacturing process of the manufacturing method for the assembly with rotating shaft of the present embodiment.

FIG. 8 is a diagram illustrating a situation in which each step shown in FIG. 7 is performed or a result of performing the step.

FIG. 9 is a front view showing a manufacturing apparatus of a rotary shaft assembly for carrying out the method of manufacturing the rotary shaft assembly of the present embodiment.

10 is a front view showing an example of a holding jig of the manufacturing apparatus for the assembly with rotating shaft of FIG.

11 is a left side view showing a part of the gripping jig of FIG. 10 in an extracted manner. FIG.

FIG. 12 is a right side view showing a part of the gripping jig shown in FIG.

13 is a side view showing an example of a rotary shaft holding device of the manufacturing apparatus for the assembly with rotary shaft of FIG.

FIG. 14 is a process diagram illustrating a manufacturing process of a conventional method of manufacturing an assembly with a rotating shaft.

FIG. 15 is a diagram illustrating a situation in which each step shown in FIG. 14 is performed or a result of performing the step.

[Explanation of symbols]

10: First rotary shaft assembly (rotary shaft assembly) 12: Second rotary shaft assembly (rotary shaft assembly) 20: Rotation axis 22: First joint member 22 (assembly) 24: Second joint member 24 (assembly) 132: grasped part 134: First outer setup jig (grasping jig) 136: Second outer setup jig (grasping jig) 138: 1st common chuck (jig gripping device) 140: Second common chuck (jig holding device) 142: Rotating shaft holding device 144: Friction welding device

Claims (2)

(57) [Claims] 1. A method for producing a welded section rotating shaft with assembly end face is welded assembly comprising a plurality of parts on the end surface of the rotating shaft, the assembly assembling the assembly from said plurality of components The process and the welded part of the assembly assembled by the assembly process
Has a grasped part with a similar shape having the same diameter dimension
Process of gripping with one of multiple types of gripping jigs
And grasp the part to be grasped of the holding jig using a common jig holding device.
By holding it, the assembly can be melted through the holding jig.
The step of holding the contact portion, the step of holding the rotary shaft by using the rotary shaft holding device, and the step of holding the rotary shaft by the jig holding device via the holding jig.
The end surface of the welded portion of the assembly and the rotary shaft holding device.
And a welding step of welding the held end faces of the rotary shaft to each other in a state where their mutual axial centers are aligned with each other, and a method of manufacturing an assembly with a rotary shaft. 2. A manufacturing apparatus for an assembly with a rotating shaft for carrying out the method for manufacturing an assembly with a rotating shaft according to claim 1, wherein the gripped portion has a similar shape having the same diameter dimension. A plurality of types of holding jigs for holding a plurality of types of the assembly , a common jig holding device for holding a held portion of the holding jig holding the assembly , and the rotating shaft. A rotating shaft holding device for holding the rotating jig, and a common jig holding device and the rotating shaft holding device are relatively rotated around the rotating shaft and are brought close to each other with their rotating shafts aligned with each other. The rotation axis of the
An apparatus for manufacturing an assembly with a rotating shaft, comprising: a friction welding device that frictionally presses an end surface and an end surface of a welded portion of the assembly with each other.