JPH079284A - Planetary gear assembly device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a planetary gear assembling device that improves the work efficiency of assembling the planetary gears and surely assembles the planetary gears. [Structure] A turntable 3, two planetary carrier jigs 4 rotatably provided on the turntable 3, and an interval equal to the arrangement interval of the planetary carrier jigs 4 within the rotation range of the turntable 3. The planetary gear incorporating portion 10 and the stop pin press-fitting portion 20 provided in step 1 are provided. The planetary gear incorporating portion 10 is provided with a dummy shaft detaching mechanism 11 for removing the dummy shaft D from the planetary gear 53D in the planetary carrier 51. 20, a jig rotating mechanism 21 for rotating the planet carrier jig 4, and a positioning fixing mechanism 31 for positioning and fixing the gear shaft 54 inserted into the planet carrier 51 and the planetary gear 53 on a common machining reference plane A. Then, the stop pin press-fitting mechanism 41 for press-fitting the stop pin 55 across the planet carrier 51 and the gear shaft 54 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planetary gear assembling device used for assembling a planetary gear to a planet carrier that constitutes a planetary gear device in an automatic transmission of an automobile, for example.

[0002]

2. Description of the Related Art Conventionally, for example, in a planetary gear device for an automatic transmission of an automobile as described above, assembling of a planetary gear to a planet carrier constituting the same is performed as shown in FIG. A rod 1 that moves up and down by operating the rotary handle 101a
01b equipped with a planet carrier jig 101 and a stop pin press-fitting machine 10 that is operated by operating a push button 102a.
2 and the planetary gear supply chute 103, the stopper pin parts feeder 104, the washer supply chute 105, and the gear shaft supply box (not shown) are provided on the workbench 100.

That is, the planetary gear 107 and the washer 108, which are respectively supplied from the planetary gear supply chute 103 and the washer supply chute 105, are simultaneously installed in the planetary carrier 106 set in the planetary carrier jig 101, and the rotary handle 101a is provided. By the upward movement of the rod 101b by the operation, the planetary gear 107
The dummy shaft 107a is removed from, and the gear shaft 109 is inserted into the planetary gear 107 instead of the dummy shaft 107a.

Next, the through hole 109 of the gear shaft 109.
With respect to a, the stop pin 110 supplied from the stop pin parts feeder 104 is pressed to operate the stop pin press-fitting machine 102 and the planet carrier 10 is operated.
By press-fitting over six, the planet carrier 10
6, the planetary gear 107 is assembled, and subsequently, the planetary carrier 106 is rotated on the planetary carrier jig 101 to perform the above operation, so that the other planetary gears 107 are sequentially assembled. .

[0005]

However, in the prior art, while the stop pin 110 is being press-fitted into the through hole 109a of the gear shaft 109 by the stop pin press-fitting machine 102, it is not easy for an operator to operate it. In addition to the waiting time, since the operator rotates the planet carrier 106 every time one planetary gear 107 is assembled, there is a problem that work efficiency is not good. there were.

When press-fitting the stop pin 110,
It is necessary to fix the planet carrier 106 and the gear shaft 109 with a clamp. At this time, the planet carrier 10 used as a processing reference when the locking hole and the through hole 109a are formed in the planet carrier 106 side and the gear shaft 109, respectively.
Fixing the upper surface shown in FIG. 6, ie, the common processing reference surface, by a clamp is the most effective in suppressing the axial displacement between the engagement hole on the planet carrier 106 side and the through hole 109a of the gear shaft 109 to be small. preferable. However, when it is attempted to fix the upper surface of the planet carrier 106 by the clamp in this way, during the series of operations of incorporating the planetary gear 107, inserting the gear shaft 109 instead of the dummy shaft 107a, and subsequently press-fitting the stop pin 110. In addition, since it is not possible to completely eliminate the fear that the hand will be caught in the clamp, the planet carrier 106 will eventually be removed.
Since there is no choice but to use a surface different from the upper surface in the drawing as a reference for clamping, it is possible to improve the axial positioning accuracy of the locking hole on the planet carrier 106 side and the through hole 109a of the gear shaft 109. In combination with the fact that the rotation direction positioning of the gear shaft 109 is visually performed, the press-fitting failure of the retaining pin 110 and the planetary gear 107
However, there has been a problem that this is a cause of defective assembly, and it has been a conventional problem to solve these problems.

[0007]

SUMMARY OF THE INVENTION The present invention has been made by paying attention to the above-mentioned conventional problems, and can improve the work efficiency of assembling the planetary gears, as well as ensure the safety and ensure the assembly of the planetary gears. It is an object of the present invention to provide a planetary gear assembling device that can be attached.

[0008]

According to the present invention, there is provided a turntable rotatable in a horizontal plane, a plurality of planet carrier jigs rotatably provided on the turntable, and the turntable. The planetary gear mounting portion and the retaining pin press-fitting portion provided at the same intervals as the arrangement intervals of the plurality of planetary carrier jigs within the rotation range are provided, and the planetary gear mounting portion is provided for the planet carrier on the turntable. A dummy shaft detaching mechanism for removing the dummy shaft from the planetary gear incorporated in the planetary carrier held by the jig is provided, and the retaining pin press-fitting portion rotates the planetary carrier jig on the turntable. A jig rotating mechanism, a planet carrier held by the jig for the planet carrier, and a planetary gear in the planet carrier instead of the dummy shaft. A configuration is provided in which a positioning fixing mechanism that positions and fixes the inserted gear shaft on a common machining reference plane and a stop pin press-fitting mechanism that press-fits the stop pin across the positioning-fixed planet carrier and the gear shaft are provided. A characteristic is that the structure of the planetary gear assembling device serves as means for solving the above-mentioned conventional problems.

[0009]

In the planetary gear assembling device according to the present invention, first, in the planetary gear mounting part, the planet carrier is held by the planet carrier jig on the turntable located at the planetary gear mounting part, and the planet carrier is held. After incorporating the planetary gear in the carrier, the dummy shaft is removed by the dummy shaft detaching mechanism, and the gear shaft is inserted in place of the dummy shaft.

Next, the turntable is rotated to position the planetary carrier, in which the planetary gears have been assembled and the gear shafts have been inserted, together with the planetary carrier jig in the retaining pin press-fitting portion, and the planetary carrier and the gears are positioned by the positioning and fixing mechanism. After the shaft is positioned and fixed on a common machining reference plane, the stop pin is press-fitted across the planet carrier and the gear shaft by the stop pin press-fitting mechanism.

Next, after releasing the fixation of the planet carrier and the gear shaft by the positioning and fixing mechanism, the jig for the planet carrier on the turntable is rotated by the jig rotating mechanism so that the other gear shafts in the planet carrier are rotated. Again, press the stop pin in the same manner as above.

At this time, since the planetary gear incorporating portion and the retaining pin press-fitting portion are provided with the same spacing as the arrangement spacing of the plurality of planet carrier jigs within the rotation range of the turntable, the retaining pin press-fitting portion. Since the other planet carrier jigs are located in the planetary gear assembly part while the stop pin is press-fitted with, the planetary gear assembly part will have the planetary gear installed at the same time as the stop pin is press-fitted. And the gear shaft will be inserted, and in addition,
At the retaining pin press-fitting portion, the rotation of the planet carrier jig on the turntable is performed by the jig rotating mechanism without bothering the operator, so that the working efficiency is significantly improved.

Further, since the planetary gear incorporating portion and the lock pin press-fitting portion are separately set, the positioning fixing of the planetary carrier and the gear shaft by the positioning and fixing mechanism at the lock pin press-fitting portion is performed by a common machining reference plane, that is, Even when the locking holes and through holes are formed on the planet carrier and the gear shaft, even if the work is performed on the reference plane, there is no possibility of the operator's hand being caught in the positioning and fixing mechanism. The positioning and fixing of (1) can be performed safely and surely, and as a result, the positional displacement of the planet carrier and the gear shaft in the axial direction becomes extremely small, and the press-fitting of the stop pin can be reliably performed.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

1 to 7 show an embodiment of a planetary gear assembling apparatus according to the present invention. In this embodiment, the planetary gear assembling apparatus according to the present invention is a planetary gear for an automatic transmission of an automobile. The case where the device is a device for assembling a planetary gear to a planet carrier in a gear device is shown.

As shown in FIGS. 1 and 2, the planetary gear assembling apparatus 1 includes a worktable 2 and a turntable 3 which is rotatable in a horizontal direction.

The turntable 3 is provided with two planet carrier jigs 4 for mounting the planet carriers 51 of the planetary gear device 50 shown in FIGS. 5 and 6, and these planet carrier jigs 4 are provided. , 4 are symmetrically arranged about the rotation axis 3a.

As shown in FIG. 3, the planet carrier jig 4 includes a core portion 4a which fits into a central hole 52a formed in the gear receiving portion 52 of the planet carrier 51, and a dummy provided on the workbench 2. A guide portion 4b that guides the dummy shaft-equipped planetary gear 53D supplied through the shaft-equipped planetary gear supply chute 61 to a predetermined position in the planet carrier 51;
A Lafro keto pin 4c for roughly positioning the planet carrier 51 with respect to the planet carrier jig 4 is provided, and these planet carrier jigs 4 and 4 are rotatable with respect to the turntable 3, respectively. .

Further, the planetary gear assembling apparatus 1 is provided with a planetary gear mounting portion 10 within the rotation range of the turntable 3, and in the planetary gear mounting portion 10, the planetary gear 53D with the dummy shaft is mounted on the planetary gear mounting portion 10. The planetary carrier 51 is mounted on the planetary carrier jig 4 located in the gear assembly part 10.

The planetary gear assembly 10 is provided with a dummy shaft removing mechanism 11. The dummy shaft detaching mechanism 11 is provided with a detaching cylinder 12 which is operated by operating a foot switch 5 inside a workbench 2, and a cylinder rod 12a of which is provided on a workbench 2 and a turntable 3.
Through the respective through holes 2a and 3b of the
The detaching cylinder 12 is fixed so that it can be retracted into and out of the planetary carrier jig 4 located at the position, and the dummy shaft D of the planetary gear 53D with the dummy shaft incorporated in the planetary carrier 51 is formed. The dummy shaft pushing body 13 provided in the planet carrier jig 4 coaxially with the planetary gear 53D is moved upward by the rod pushing operation of the releasing cylinder 12 so as to move the planetary gear 53D from the planetary gear 53D. The dummy shaft D is pushed out.

On the other hand, the cylinder rod 12a is moved downward by the rod retraction operation of the detaching cylinder 12 and is detached from the through hole 3b of the turntable 3, so that the cylinder rod 12a is turned.
It does not interfere with the rotation of the.

In this planetary gear assembly portion 10, when the disengaging cylinder 12 is operated to pull in the rod, the gear shaft 54 in the gear shaft accommodating box 62 provided on the workbench 2 together with the planetary gear assembling apparatus 1 is replaced with a dummy shaft. At the same time as inserting into the planetary gear 53 instead of D, a washer W (shown only in FIG. 6 and FIG. 7) supplied from a washer parts feeder 63 also provided on the workbench 2 together with the planetary gear assembling apparatus 1 is set. In this case, the coil spring 14 is provided on the lower surface side of the dummy shaft push-out body 13, and the tip end thereof is kept at substantially the same height as the gear receiving portion 52 of the planet carrier 51, so that the gear shaft 54 The washer W is prevented from falling off from the planetary gear 53, and the washer W is prevented from coming off from the gear shaft 54. In this embodiment, the dummy shaft disengaging mechanism 11 is provided by the number of the planetary gears 53 incorporated in the planetary carrier 51, that is, by three, so that the dummy shafts D from the three planetary gears 53D with dummy shafts are provided.
The extrusion can be performed simultaneously.

Further, the planetary gear assembling apparatus 1 is provided with a retaining pin press-fitting portion 20 within the rotation range of the turntable 3 in addition to the planetary gear assembling portion 10. A jig rotating mechanism 21 for rotating the planet carrier jig 4 on the turntable 3 located in the retaining pin press-fitting portion 20, the planet carrier 51 held by the planet carrier jig 4, and the inside of the planet carrier 51. Positioning and fixing mechanism 31 for positioning and fixing the gear shaft 54 inserted in the planetary gear 53, and a locking pin press-fitting mechanism for press-fitting the locking pin 55 across the gear receiving portion 52 and the gear shaft 54 of the positioning-fixed planetary carrier 51. 41 is provided.

The jig rotating mechanism 21 includes a cylinder 22 fixed to the workbench 2 through a bracket (not shown) and a motor 23 attached to a rod 22a of the cylinder 22.
And the serration 23b formed on the rotary shaft 23a of the motor 23, and the serration 23b of the motor rotary shaft 23a is provided at the center of the bottom of the planet carrier jig 4 by the rod pushing operation of the cylinder 22. By engaging the serration bridge 4d, the planet carrier jig 4 is rotated by the operation of the motor 23. Then, when the turntable 3 is rotated, the serration 23b of the motor rotation shaft 23a and the serration receiver 4d of the planet carrier jig 4 and the turntable 3 are driven by the rod retraction operation of the cylinder 22.
By disengaging from the shaft insertion hole 3b, the rotation of the turntable 3 is not hindered.

The positioning and fixing mechanism 31 has a substantially U-shaped side surface and a pressing portion 3 provided at the tip of the upper side 32a.
2b, the clamp member 32 that can press the common machining reference plane A of the planet carrier 51 and the gear shaft 54 in the planet carrier 51 from above, and the rod 33a that is fixed to the workbench 2 and that is below the clamp member 32. A clamp cylinder 33 connected to the side edge 32c is provided, and the clamp member 32 is moved in the vertical direction by the rod pushing / pulling operation of the clamp cylinder 33.

Further, the positioning and fixing mechanism 31 is fixed to the upper side 32a of the clamp member 32, and the rod 34a is inserted into the shaft insertion hole 51a of the planet carrier 51 to perform positioning in the rotational direction and at the tip of the rod 34a. A positioning cylinder 34 that engages / disengages the provided positioning portion 34b with a positioning recess 54a provided at the upper end of the gear shaft 54, and a dummy in the planet carrier jig 4 that is fixed to the lower side 32c of the clamp member 32. Shaft extruded body 1
Cylinder 3 for holding an axis by which a rod 35a can be brought into contact with
5, the dummy pushing-out body 13 is pushed up by the rod pushing-out operation of the shaft-holding cylinder 35, and the gear shaft 54 is sandwiched between the dummy shaft pushing-out body 13 and the positioning portion 34b on the positioning cylinder 34 side, and the upper end thereof is provided. Machining reference plane A
I am trying to position it.

As shown in FIG. 4, the positioning portion 34b on the side of the positioning cylinder 34 has a shape in which both corners of the tip of a minus driver are rounded. Insertion hole 51a
The shaft insertion hole 51a can be easily pulled and positioned when it is inserted into the shaft. Further, the positioning recess 54a on the gear shaft 54 side is formed in a substantially mortar shape, and is positioned in the rotation direction while engaging with the positioning part 34b on the positioning cylinder 34 side.

In this case, the upper side 32 of the clamp member 32
A micro switch 36 for detecting that the pressing portion 32b of the clamp member 32 has pressed the processing reference surface A is provided at a, and the vertical sandwiching cylinder 35 of the shaft holding cylinder 35 is provided at an intermediate portion in the vertical direction of the clamp member 32. A micro switch 37 is provided which comes into contact with a protrusion 35b provided on the rod 35a and detects pushing up of the dummy shaft pushing body 13 by the rod 35a.

The stop pin press-fitting mechanism 41 is slidably fitted to a pin press-fitting cylinder 42 horizontally provided on the vertical side 32d of the clamp member 32 and a rod 42a of the pin press-fitting cylinder 42, and includes a rod 42a. A cylindrical body 43 that is prevented from coming off from the large diameter portion at the tip, and a small diameter rod 44 that is provided at the tip of the rod 42a and slides inside the small diameter cylindrical portion 43a of the cylindrical body 43.
And a coil spring 45 that is fitted into the small diameter rod 44 in the cylindrical body 43 and applies a force to the cylindrical body 43 in the left direction in FIG. 1. The small diameter cylindrical portion 43a of the cylindrical body 43 has a locking pin. The feeder 64 is connected.

In this stop pin press-fitting mechanism 41,
The pin press-fitting cylinder 42 is operated to push out the rod to insert the cylinder body 43 into the pin press-fitting hole 51b of the planet carrier 51, and the stop pin 55 supplied from the stop pin feeder 64.
The small diameter rod 44 allows the gear carrier 5 of the planet carrier 51 to
2 shaft locking hole 52b and gear shaft 54 shaft through hole 54b
I'm trying to press fit across.

In this case, the pin press-fitting hole 51 of the cylinder body 43 is in the rod sliding hole 32e of the clamp member 32 in which the rod 42a of the pin press-fitting cylinder 42 and the cylinder body 43 slide.
A microswitch 46 is provided to detect insertion into b.

The interval between the press-fitting pin 20 and the planetary gear assembly 10 is set to be the same as the interval between the two planet carrier jigs 4 and 4. That is, when one of the planet carrier jigs 4 is located in the planetary gear assembly portion 10, the other planet carrier jig 4 is located in the retaining pin press-fitting portion 20, and the other planet carrier jig 4 is located. Is located in the planetary gear built-in portion 10, one of the planet carrier jigs 4 is located in the stop pin press-fitting portion 20, and the turntable 3 is provided with the button switch 6 on the workbench 2. It rotates by operation and the planetary gear assembly part 1
0 and the stop pin press-fitting portion 20 are arranged so that the two planetary carrier jigs 4 and 4 are stopped when they are positioned.

In the planetary gear mounting apparatus 1 described above, first, in the planetary gear mounting section 10, the planet carrier 51 is held by the planet carrier jig 4 on the turntable 3 located in the planetary gear mounting section 10, In this planet carrier 51, planet gears 53D with three dummy shafts are provided.
Following the guide portion 4b, the foot switch 5 is stepped on to operate each of the three sets of dummy shaft release mechanisms 11 for releasing cylinders 12 for rod removal, and the dummy shaft pushers 13 are moved upward. By moving the dummy shafts D from the three planetary gears 53D, the gear shafts 54 are inserted in place of the dummy shafts D.

Next, the foot switch 5 is opened and the releasing cylinder 12 is rod-retracted to release the cylinder rod 12a from the through hole 3b of the turntable 3, and then the turntable is pushed by pushing the button switch 6. 3 is rotated to position the planet carrier 51 in which the planetary gear 53 is assembled and the gear shaft 54 is inserted together with the planet carrier jig 4 in the retaining pin press-fitting portion 20.

Next, at the same time when the turntable 3 is stopped, the positioning cylinder 34 of the positioning and fixing mechanism 31 operates to push out the rod, and the rod 34a is moved to the planet carrier 51.
The shaft is inserted into the shaft insertion hole 51a for positioning in the rotation direction, and the positioning portion 34b of the rod 34a is engaged with the positioning recess 54a of the gear shaft 54 to position the gear shaft 54 in the rotation direction.

At this time, since the positioning portion 34b on the side of the positioning cylinder 34 has a shape in which both corners of the tip of the flathead screwdriver are rounded, the positioning of the shaft insertion hole 51a by the positioning portion 34b is performed smoothly. Will be done. Further, since the positioning recess 54a on the gear shaft 54 side is formed in a substantially mortar shape, the gear shaft 54
Positioning in the rotation direction of itself will also be performed smoothly.

Following this, by the rod retraction operation of the clamp cylinder 33, the clamp member 32 moves downward, the pressing portion 32b positions and fixes the planet carrier 51 on the machining reference plane A, and then the cylinder for axial clamping. The rod pushing operation of 35 pushes up the dummy shaft pushing body 13, and the positioning portion 34b on the positioning cylinder 34 side.
The gear shaft 54 is sandwiched between and, and the upper end thereof is positioned on the processing reference plane A.

The two micro switches 36 and 3
7 detects that the pressing portion 32b of the clamp member 32 has pressed the processing reference surface A, and the dummy shaft extruded body 1 is detected.
When the push-up of No. 3 is detected, the pin press-fitting cylinder 42 of the stop pin press-fitting mechanism 41 operates to push the rod, and the cylinder body 43
Is inserted into the pin press-fitting hole 51b of the planet carrier 51, and the pin press-fitting cylinder 42 is connected to the coil spring 45.
The rod pushing operation is performed against the elastic force of the rod, and the stop pin 55 supplied from the stop pin feeder 64 is moved to the small diameter rod 4
4 press-fits over the shaft locking hole 52b of the gear receiving portion 52 and the shaft through hole 54b of the gear shaft 54 in the planet carrier 51, whereby the assembly of one planetary gear 53 is completed.

Next, each operation of the shaft holding cylinder 35, the clamping cylinder 33 and the positioning cylinder 34 of the positioning and fixing mechanism 31 releases the fixation of the planet carrier 51 and the gear shaft 54, and then the jig rotating mechanism. Two
The cylinder 22 of No. 1 operates to push out the rod, and the serrations 23b of the motor rotating shaft 23a move to the jig 4 for the planet carrier.
Engaging with the serration receiver 4d, the planetary carrier jig 4 is rotated by the operation of the motor 23, and the planetary carrier 51 is rotated.
The other planetary gear 53 in the inside is positioned at the position of the positioning and fixing mechanism 31, and the stop pin 55 is similarly press-fitted with respect to this, and the planetary gear 53 is assembled.

At this time, the planetary gear incorporating portion 10 and the retaining pin press-fitting portion 20 are provided with the same spacing as the arrangement spacing of the two planet carrier jigs 4 and 4 within the rotation range of the turntable 3. From the above, while the stop pin 55 is press-fitted by the stop pin press-fitting portion 20 as described above,
Since the other planet carrier jigs 4 are located in the planetary gear incorporating portion 10, in the planetary gear incorporating portion 10, the planetary gear 53 is incorporated and the gear shaft 54 is inserted simultaneously with the press-fitting of the retaining pin 55. In addition, in the stop pin press-fitting section 20, since the planet carrier jig 4 on the turntable 3 can be rotated by the jig rotating mechanism 21 without bothering the operator, The work efficiency will be greatly improved.

Further, since the planetary gear incorporating portion 10 and the stop pin press-fitting portion 20 are set separately, the planetary carrier 51 and the gear shaft 54 are commonly positioned and fixed by the positioning and fixing mechanism 31 in the stop pin press-fitting portion 20. Even if the machining reference plane A is used, that is, the machining reference plane when the shaft locking hole 52b and the shaft through hole 54b are formed in the gear receiving portion 52 and the gear shaft 54, respectively, the positioning fixing mechanism 31 does not require the operator's hand. Since there is no possibility of being pinched, the planet carrier 51 and the gear shaft 54 can be fixedly positioned and secured safely, and as a result, the stop pin 55
The press-fitting is surely performed.

In the above embodiment, the turntable 3 is provided with two planet carrier jigs 4. However, the present invention is not limited to this, and three or more planet carrier jigs 4 are provided. May be arranged at equal intervals around the rotating shaft 3a.

In the above embodiment, the dummy shaft removing mechanism 11 is provided for the number of the planetary gears 53 incorporated in the planet carrier 51, that is, three dummy gears are provided, but one dummy shaft removing mechanism 11 is provided. It is possible to provide only one structure, and other detailed structures are not limited to the above-mentioned embodiments.

Further, in the above-described embodiment, the case where the planetary gear assembling device according to the present invention is a device for assembling the planetary gears to the planet carrier in the planetary gear device of the automatic transmission of an automobile is shown. It is not limited to.

[0045]

As described above, in the planetary gear assembling apparatus according to the present invention, since it has the above-mentioned structure, the planetary gear assembling portion can be used while the retaining pin is press-fitted by the retaining pin press-fitting portion. It is possible to assemble the planetary gears and insert the gear shafts.In addition, this stop pin press-fitting part can rotate the planet carrier jig on the turntable without the operator's hand. As a result, the work efficiency of assembling the planetary gears can be greatly improved, and the planetary carrier and gear shaft can be positioned and fixed on the common machining reference plane of the planetary carrier and gear shaft without compromising safety. Also, the positional deviation of the gear shaft in the axial direction becomes extremely small, which brings about an extremely excellent effect that the planetary gears can be reliably assembled.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view showing an embodiment of a planetary gear assembling device according to the present invention.

FIG. 2 is an overall perspective explanatory view of the planetary gear assembly device shown in FIG.

FIG. 3 is a perspective explanatory view of a planet carrier jig in the planetary gear assembling apparatus shown in FIG. 1.

4 (a) is an enlarged front explanatory view of a positioning portion of a positioning / fixing mechanism in the planetary gear assembly shown in FIG. (B) It is a bottom view of the positioning part shown in FIG.

FIG. 5 is an enlarged plan view showing a planetary gear device in an automatic transmission of an automobile.

6 is a side view of the planetary gear device shown in FIG.

7 is an enlarged cross-sectional explanatory view of a planetary gear in the planetary gear device shown in FIG.

FIG. 8 is an overall perspective explanatory view showing a conventional procedure for assembling a planetary gear.

[Explanation of symbols]

 1 Planetary Gear Assembly Device 3 Turntable 4 Planetary Carrier Jig 10 Planetary Gear Assembly Part 11 Dummy Shaft Removal Mechanism 20 Stop Pin Press-In Section 21 Jig Rotation Mechanism 31 Positioning Fixing Mechanism 41 Stop Pin Press-In Mechanism 51 Planetary Carrier 53 Planetary Gear 53D Planetary gear with dummy shaft 54 Gear shaft 55 Fixing pin A Machining reference plane D Dummy shaft

Claims (1)

[Claims] 1. A turntable rotatable in a horizontal plane, a plurality of planet carrier jigs rotatably provided on the turntable, and the plurality of planetary carrier jigs within a rotation range of the turntable. A planetary gear mounting portion and a retaining pin press-fitting portion provided at the same intervals as the arrangement intervals of the planetary carrier jig are provided, and the planetary gear mounting portion holds the planetary carrier held by the planet carrier jig on the turntable. A dummy shaft disengaging mechanism for removing the dummy shaft from the planetary gear incorporated therein is provided, and a jig rotating mechanism for rotating the planet carrier jig on the turntable is provided in the stop pin press-fitting portion. The planetary carrier held by the jig for the planetary carrier and the planetary gear in the planetary carrier are provided with a common gear shaft inserted in place of the dummy shaft. A planetary gear assembling apparatus comprising: a positioning and fixing mechanism for positioning and fixing on a work reference plane; and a stop pin press-fitting mechanism for press-fitting a stop pin across the planetary carrier and the gear shaft, which are positioned and fixed.