JPH0663242U - Planetary gear assembly assembly device - Google Patents

Abstract

(57) [Summary] [Object] The present invention provides a positioning device for retaining pin holes of a small shaft and a device for assembling a planetary gear assembly to a housing of a planetary gear device. [Structure] A planetary gear assembly 7 in which the planetary shaft 3 has been inserted is placed and indexed on a pedestal 14 which is positioned by a guide block 13 on an indexing plate 12 and which can be moved back and forth. The knockout 26 is lifted to pull out the planetary shaft 3 and insert it into the center hole of the sleeve 31. The rotary actuator 48 turns the sleeve 180 °, during which the pin hole positioning tool 41 is fitted and positioned in the pin hole 3a, and the sleeve is inverted. And pinhole position is specified. The housing 8 is advanced to the assembling position, the planetary gear assembly 7 is gripped, and the shaft insertion tool 38 descends to insert the planetary shaft into the housing planetary gear. The housing 8 is retracted and rotated by 120 °, and the housing is advanced again to press the pin 6 into the housing and the pin hole of the planetary shaft.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a positioning device for a retaining pin hole of a small shaft and a device for assembling a planetary gear assembly to a housing of a planetary gear device.

[0002]

[Prior art]

 The fit between the planetary gear housing and the planetary shaft of the planetary gear assembly is usually a clearance fit, and the phase-matching between the retaining pin holes of the housing and the pin holes of the planetary shaft is done by hand one by one, and the pins by hand. I am trying to type in. As a device for assembling the planetary gear assembly, there is Japanese Utility Model Publication No. 4-53878.

[0003]

[Problems to be solved by the device]

 Since it is done by hand, it takes time and the efficiency does not increase. In addition, it is necessary to increase the number of workers to cope with mass production, which causes a problem of high cost. Although one solution has been proposed for the Japanese Utility Model Publication No. 4-53878, the planetary shaft of the planetary gear assembly does not use the retaining pin for the planetary shaft. It is not applicable and requires some improvement. The present invention has been made in view of the above problems of the prior art, and its purpose is to provide a device for automatically determining the position of the pin for retaining the small shaft and a retainer pin for the planetary shaft. An object of the present invention is to provide a planetary gear assembly assembling device that can be driven automatically, reliably and efficiently.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is a device for defining a pin hole position of a small shaft to be attached to a small shaft when the small shaft is inserted into the device. A sleeve that has a center hole into which it can be fitted and that is pivotally supported, and an insertion tool that can be moved axially only in the center hole and that can be relatively moved to the lower end through a specified position from above by a compression spring. A rod member provided to urge downward, a pressing member concentric with the center hole, which can be positioned in two upper and lower positions from below, drive means for rotating the sleeve, and a center hole provided in the sleeve. It consists of a pin hole positioning means that fits into the pin hole of the small shaft that is inserted into the sleeve and a detection means that detects that the pin hole positioning means fits into the pin hole. The small axis Is intended to return the middle fitting the pin hole positioning means into the pin hole engaged thereby pin hole positioning hand stage to pivot the sleeve while clamping the frictional force in the specified location in the member and the pressing member in the specified location.

Further, indexing means for placing a planetary gear assembly incorporating a planetary shaft at a prescribed position and moving it to an assembling position for housing, non-cutout means for pulling out the planetary shaft upward at the assembling position, and A sleeve concentrically with the knockout means, which is pivotably provided on the upper part of the indexing step, an insertion tool step for inserting the planetary axis into a planetary gear, the insertion tool step being inserted through a central hole into which the planetary axis of the sleeve can be fitted. Pin hole positioning means that is provided in the sleeve and fits into the pin hole of the planetary shaft that is inserted into the central hole while the sleeve is being rotated by the driving means, and indexing and conveying means that indexes and positions the housing and moves it to the assembling position. And the planetary gear assembly assembled in the housing, check the pin hole for the planetary shaft And means for driving in.

[0006]

[Action]

 In the apparatus according to the first aspect, the small shaft is inserted into the center hole of the sleeve from below from below by a pressing member, and the small shaft is sandwiched by the rod member and is rotated by 180 ° while being prevented from rotating by frictional force. During this time, the positioning member fits into the pin hole for retaining the small shaft, and from that point, the small shaft is rotated by the sleeve and turned to the end of 180 °, then the sleeve is reversed and the pin hole positioning means is set. The detector confirms the fitting with the pin hole at the 180 ° end position where the return pin hole is positioned at the specified position.

According to a second aspect of the present invention, the planetary gear assembly mounted on the pedestal on the indexing plate of the indexing device is pivoted to a mounting position on the housing, and the planetary shaft is pulled out by the knockout means to the sleeve central hole. Insert it, hold it between the insertion tool means and the knockout means, and stop it by rubbing. The sleeve is rotated 180 °, and the pinhole positioning means that rotates integrally during this rotation fits into the pinhole of the planetary shaft, and the planetary shaft is rotated together with the sleeve. After pivoting to the end of 180 °, the sleeve is turned over and the pin hole positioning means is returned to the original prescribed position. After lowering the knockout means and moving the housing to the assembling position by the indexing and conveying means, raising the knockout means again, the planetary shaft is clamped and the planetary shaft is pushed into the housing and planetary gear by the insertion tool means, and then the housing is removed. The retainer pin is driven backward and pivotally positioned, and the retaining pin is driven into the planetary shaft.

[0008]

【Example】

 The present invention will be described below with reference to FIGS. This device supplies the planetary gear assembly with a planetary shaft, removes and inserts the small shaft, and positions the retaining pin hole positioning mechanism A, indexes the housing assembly with the planetary gear assembly, and attaches the retaining pin to the planetary shaft. It consists of a driving mechanism B.

(Mechanism A) In the indexing device 11 having a built-in motor, an indexing plate 12 is attached to a revolving shaft 11a projecting on the upper surface via a receiving plate, and the indexing plate 12 is rotated by a command to rotate the motor. Predetermined angle In this embodiment, the turning index is obtained every 90 °. On the upper surface of the index plate 12, guide blocks 13 having radial windows are arranged at 90 ° intervals on the circumference. A pedestal 14 with a forward end stopper is horizontally slidably fitted in the guide window. A planetary gear assembly 7 is mounted on the pedestal 14 and a through hole 14a is formed in which the planetary shaft 3 of the planetary gear 1 is fitted, and a part of a shaft stopper piece 17 for receiving and positioning the lower end of the planetary shaft 3 is formed. Is attached to the through hole 14a as desired.

When the planetary shaft 3 of the planetary gear assembly 7 mounted in a state where the planetary shaft 3 is fitted in the through hole 14a is loosened, a recess 13a surrounding the semi-outer circumference is guided so as to hold the position. It is formed on the upper portion of the block 13. Further, the guide block 13 is provided with a compression spring 19 which is built in a steel ball 18 which is fitted in a recess on the upper surface of the pedestal 14 and holds the forward end position of the pedestal 14 so that the steel ball 18 can be moved forward and backward and is constantly pressed. . An air actuator 22 is attached horizontally to the center of the indexing plate 12 in the radial direction of the center of the indexing plate 12 on the arm of the frame 21 integrally formed with the indexing stand 10 of the indexing device 11. A child 23 is attached so that the retracted pedestal 14 is returned to the forward end.

A guide block 24 is attached to the indexing stand 10 of the indexing device 11, and is slidably fitted into a through hole 24a that is concentric with the through hole 14a of the cradle 14 at the forward end, and the shaft stopper piece 17 and the drying piece. A knockout 26 having a cutout surface is inserted so as not to cross over. Further, a detent piece 27 is attached so that the notch surface of the knockout 26 does not rotate. The upper step 24b of the upper surface of the guide block 24 acts as a bending prevention when the indexing plate 12 is pushed for some reason. The lower stage 24c receives, via the chuck holder 55, the lower end of the pressing element 61 for positioning the planetary shaft 3 in the housing 8 described later. Further, the step portion 24d contacts the pressing element 61 at the housing mounting position to determine the forward end. An air actuator 28 for moving the knockout 26 up and down is provided on the indexing base 10 concentrically with the knockout 26.

A sleeve 31 is rotatably fitted concentrically with the planetary shaft 3 to a bearing body 30 attached to a frame body 21 directly above the planetary gear assembly 7 positioned and mounted on the pedestal 14 in the assembling position. ing. A central hole 31a into which the planetary shaft 3 slides is formed in this sleeve 31, and an insertion rod 32 is slidably inserted from above. The boss at the upper end of the insertion rod 32 is chamfered and guided by the guide 33 attached to the frame 21 to prevent rotation. The sensing piece 34 is attached to the boss, and the upper end position is detected by the non-contact detector 35 provided on the frame 21, and the lower end position is detected by the non-contact detector 36. Further, the upper end of the insertion rod 32 is provided upright on the frame body 21 and is connected to the piston rod of the hydraulic actuator 37.

Further, a small diameter shaft 38a of a shaft insertion tool 38 that is slidably fitted in the central hole 31a is slidably fitted to the lower end of the center hole of the insertion rod 32, and the insertion rod 32 is inserted in the small diameter shaft 38a. The retaining pin 39 facing the window 32b penetrating the center hole 32a is hit, and the shaft insertion tool 38 is constantly urged downward by the compression spring 40 inserted in the center hole 32a. A pin hole positioning member is provided at a position corresponding to the pin hole 3a for preventing the shaft from coming off when the planetary shaft 3 is inserted and positioned in the center hole 31a of the sleeve 31 as described later. That is, a pin hole positioning tool 41 is slidably fitted in the sleeve 31 at a right angle to the axis, and is connected to a piston rod of an air actuator 42 provided in the sleeve 31.

A sensing piece 43 is projected on the pin hole positioning tool 41, and a non-contact detector 46 provided on the angle 44 of the frame 21 allows the pin of the pin hole positioning tool 41 to rotate at the 180 ° rotation end of the sleeve 31. The fitting into the hole 3a can be confirmed (state of FIG. 2). The tip of the pin hole positioning tool 41 is formed into a taper so that it can be fitted into the tapered counterbore surface of the inlet of the pin hole 3a of the planetary shaft 3. A driven gear 47 is fixed to the upper end surface of the sleeve 31, and is meshed with a drive gear 49 attached to a rotary shaft of a rotary actuator 48 mounted on the frame 21 and rotated by 180 °.

(B Mechanism) A carrier table 50 having a guide surface facing the indexing table 11 is disposed on the upper surface on the side opposite to the indexing device 11 with the knockout 26 interposed, and a pedestal 51 is slidably mounted. By engaging the connecting plate 53 at the piston rod end of the hydraulic actuator 52 mounted on the carrier 50 and the engagement block 54 mounted on the frame 51, the frame 51 can be set at the mounting position and the standby position of the planetary gear assembly 7. Are moved and positioned. The umbrella-shaped chuck holder 55 is rotatably supported on the gantry 51 via a sleeve by a shaft portion 55a about a vertical axis. A chuck pulley 55 is provided with a driven pulley 56 at the lower end of a shaft portion 55a, and is connected to a drive pulley 58 of an output shaft 57a of a pneumatic indexing device 57 by a timing belt 59.

The umbrella-shaped chuck holder 55 has a receiving surface of the housing 8 formed on the umbrella portion 55b, and the insertion hole 55d of the knockout 26 and the planetary gear assembly are equiangularly positioned corresponding to the planetary gear assembly 7 mounted on the housing 8. A pusher 61 is fixed to the side wall in the insertion hole 55d so that a part of the pusher 61 can push the pedestal 14 to retract when the planetary shaft 3 is mounted and to position the lower end of the planetary shaft 3 when the planetary shaft 3 is inserted. . Further, in the central recess 55c of the chuck holder 55, the claws are projected upward at an equal angle position, the lower L-shape is concentrated in the center of the recess, and the horizontal support shaft 62 allows the chuck claws 63 to pivot in the radial direction. It is supported. The chuck rod 64 is vertically movably inserted into the center hole of the shaft portion 55a of the chuck holder 55, and when the chuck rod 64 is pushed up by the piston rod of the air actuator 66 installed upright on the pedestal 51, the chuck claw 63 is The L-shaped tips are pushed up at the same time, and the chuck jaws are expanded against the force of the compression spring 67 acting in the closing direction of the jaws.

Further, the carrier table 50 is provided with a pin supply device and a pin driving device. As shown in FIGS. 3 and 5, in the pin supply device, the device base 71 is attached to the mount 51 from the position where the planetary shaft 3 is incorporated to the pin driving position of the planetary gear assembly 7 which is rotated 120 ° in this embodiment. A pin storage case 72 with a case lid 73 having a supply port 73a from a hopper (not shown) so that the pin 6 is fed concentrically with the pin hole 8e in the front of the pin hole 8e of the housing 8 on the device base 71. Are tangential to the housing. A pressing slider 74 forcibly feeding the pins is inserted into the pin accommodating chamber, and the leading pins 6 are fed one by one by an air actuator 76 on the device stand 71. Further, the pin 6 is sent to the driving position of the ball plunger 77 and the storage case 72 which are biased by a spring to prevent the pin from flowing to the case lid 73 so that one of the pins 6 is surely sent. A detector 78 for confirming

Further, as shown in FIGS. 3 and 4, the pin driving device has a slider 81 slidably mounted on a mount 81 fixed to the carrier 50 so as to be slidable in the pin driving direction. It is connected to the piston rod of the attached hydraulic actuator 83. The forward and backward ends of the piston rod are detected by detectors 84a and 84b. A press-fitting tool 86 is slidably provided on the slider 82 concentrically with the pin hole 8e of the housing 8 which is pivotally positioned. The press-fitting tool 86 is connected to the piston rod of the air actuator 87 on the slider and is moved forward and backward. The end positions are detected by the detectors 88a and 88b. Further, an air actuator 91 is vertically attached to the frame body 21 and a housing retainer 92 is fixed to the lower end of the piston rod so that the housing 8 advanced to the assembled position is pressed against the reference surface of the chuck holder 55. Is becoming.

The operation of the present invention thus constructed will be described with reference to FIGS. 3 and 6 to 10. In FIG. 3, the washer 5 and the planetary gear 1 are placed on the guide block 13 on the pedestal 14 at the receiving position (a), and the indexing device 11 rotates 90 °. The bearing 2, the planetary shaft 3 and the washer 4 are inserted into the upper guide block 13 of the pedestal 14 indexed to the receiving position (b), and the lower end of the planetary shaft 3 is received by the shaft stopper 17. Then, the indexing device 11 is operated and the indexing plate 12 is pivotally indexed to the pin hole positioning operation position / assembly position (C) (FIG. 6A). When the air actuator 28 is actuated and the piston rod rises, the knockout 26 is inserted into the hole 14a of the pedestal, and after penetration, the planetary shaft 3 is pushed up and pulled out from the bearing 2, and the planetary shaft 3 is inserted into the central hole 31a of the sleeve 31. It abuts the insertion tool 38, compresses the compression spring 40, and clamps the planetary shaft 3 with the shaft insertion tool 38 at the upper end position of the knockout 26 so as not to rotate due to frictional force.

That is, the planetary shaft 3 is inserted at a specified position of the center hole 31a of the sleeve 31, that is, at a height at which the positioning tool 41 and the retaining pin hole 3a coincide (FIG. 6B). A low pressure air is sent to the air actuator 42, and the pin hole positioning tool 41 is moved forward to abut the side surface of the planetary shaft 3 (FIG. 6B). In the state where the planetary shaft 3 is clamped from the upper and lower sides and prevented from rotating, the rotary actuator 48 is swung to rotate the drive gear 49 and the driven gear 47, and the sleeve 31 is swung to the end of 180 °. During this turning, the pin hole positioning tool 41, which is biased in the forward direction by the air actuator 42, is fitted into the pin hole 3a for preventing the planetary shaft 3 from coming off, and rotates the planetary shaft 3 together with the sleeve 31. At the turning end of the sleeve 31, the non-contact detector 46 and the sensing piece 43 sense the position where the pin hole positioning tool 41 fits into the pin hole 3a and advances to detect the positioning of the pin hole 3a of the planetary shaft 3. After that, the air pressure of the air actuator 42 is switched to high pressure (FIG. 7A).

The rotary actuator 48 reverses 180 ° and the sleeve 31 returns to the original position (0 °). As a result, the pin hole 3a for preventing the planetary shaft 3 from coming off is positioned at the assembling position (FIG. 7B). The air actuator 28 is operated to bring the knockout 26 to the lower end. Until now, the housing 8 has been loaded into the chuck holder 55, the hole 55d and the planetary shaft insertion hole 8d have been aligned and placed on the reference surface, and the chuck rod 64 has been lifted by the operation of the air actuator 66 to move it into the center hole 8a. The chuck claw 63 is opened and the housing 8 is positioned and fixed to the chuck holder 55. On the other hand, the hydraulic pusher 23 at the piston rod end of the air actuator 22 is at the rearward retreat end.

The hydraulic actuator 52 is actuated, and the pedestal 51 is advanced to the assembly position on the planetary gear 1 side via the engagement block 54 by the pressing plate 53 of the piston rod, and the pressing element 61 of the umbrella portion of the chuck holder 55 is moved. The pedestal 14 is pushed in and abutted against the stepped portion 24d of the guide block 24 to be positioned, and the lower surface of the umbrella portion 55b of the chuck holder is received by the upper surface 24c of the guide block 24. The other part of the housing 8 takes the planetary gear 1 into the space 8c (FIG. 8A).

The air actuator 28 is actuated to raise the knockout 26 and the hole 55d of the chuck holder 55 is inserted into the planetary shaft hole 8d of the housing 8, penetrates the planetary gear 1 and corrects a slight displacement of the housing 8. The penetrated knockout 26 abuts on the lower surface of the planetary shaft 3 held by the pin hole positioning tool 41. The air actuator 42 is operated to retract the pin hole positioning tool 41 (FIG. 8B). The hydraulic actuator 37 operates and the lower end of the insertion rod 32 pushes down the shaft insertion tool 38 while the compression spring 40 is compressed. The planetary shaft 3 is inserted into the bearing 2 of the planetary gear 1 while pressing the knockout 26 while compressing the air in the air actuator 28, and the lower end of the planetary shaft 3 is positioned at the upper end of the presser 61 (Fig. 9A).

The operating pressure direction of the air actuator 28 is switched by the signal of the non-contact detector 36 to move the knockout 26 to the lower end position, and the operating pressure direction of the hydraulic actuator 37 is switched to the upper end position of the shaft insertion tool 38. (FIG. 9B). The operating pressure direction of the hydraulic actuator 52 is switched to retract the gantry 51. The indexing device 57 is operated to rotate the chuck holder 55 by 120 ° (three planetary gear assemblies in this example) by the drive pulley 58, the timing belt 59, and the driven pulley 56. At this time, the air actuator 22 is actuated to move the pusher 23 forward so that the cradle 14 that has been pushed in is positioned as the forward end by the steel ball 18. Further, the indexing device 11 is operated to rotate the indexing plate 12 by 90 °, and the next pedestal 14 on which the planetary gear assembly 7 is mounted is positioned at the assembling position and the pin hole 3a for preventing the planetary shaft 3 from coming off is positioned.

The hydraulic actuator 52 moves the gantry 51 forward, holds the planetary gear 1 in the housing 8, raises the knockout 26, pushes the planetary shaft 3 through the chuck holder, the housing, and the planetary gear, and pushes out the planetary shaft 3 in the sleeve 31. Then, the sleeve 31 is swung and the pin hole positioning tool 41 is fitted into the pin hole 3a so that the pin hole 3a is positioned. During this time, the ball plunger 77 of the storage case 72 keeps the pin 6 in the front of the pin hole 8e of the housing 8 so that the hydraulic actuator 83 is operated to move the slider 82 toward the storage case 72. The press-fit tool 86 is advanced to penetrate the storage case 72 and advance to the outer periphery of the front housing 8 of the pin hole 8e of the housing 8.

A signal is output from the detector 84a at this position. After the next pin hole 3a is positioned and the knockout 26 comes into contact with the planetary shaft 3, the air actuator 91 is operated to lower the housing retainer 92, and the housing 8 is pressed and fixed to the reference surface of the chuck holder 55 at the stepped portion. To do. The air actuator 87 is actuated to insert the press-fitting tool 86 into the pin hole 8e and the pin hole 3a for preventing the planetary shaft from coming off, to a predetermined depth of about 1/3 of the pin length. If this insertion is done correctly, a signal will be output from the detector 88a, but if there is no signal output, an alarm will be stopped as a pin hole mismatch insertion failure. A signal from the detector 88a switches the operating directions of the air actuator 87 and the hydraulic actuator 83 to cause the press-fit tool 86 and the slider 82 to retreat all at once. The air actuator 76 is actuated to move the pressing slider 74 forward, and the ball plunger 77 is pressed to feed one pin 6 into the front surface of the pin hole 8e.

Next, the operating direction of the pressing actuator 83 is switched again, and the pin 6 is press-fitted into the pin holes 8e, 3a by the forward movement of the press-fitting tool 86 so that the pin rear end is aligned with the outer periphery of the housing 8 (FIG. 10). The slider 82 is retracted by the hydraulic actuator 83, the air cylinder 91 is operated, and the housing retainer 92 is raised. Then, the pin hole positioning tool 41 is pulled out to proceed to the next step. The assembling of the planetary gear assembly 7 into the housing 8 is completed. By repeating this process three times, a housing assembly incorporating the planetary gear assembly is completed. In the process after the planetary gear is installed in the space 8c of the first housing 8 and the first pin hole 3a is positioned and the knockout 26 contacts the planetary shaft 3, the pin 6 is not driven, and the third pinion is not driven. In the process of driving the pin 6 of the planetary shaft 3, it is programmed so that the work process at the assembling position is not performed.

[0028]

[Effect of device]

 With the above-mentioned configuration, the present invention has the following effects. According to the first aspect, the labor required for the complicated phase alignment of the pin holes is not required, and the assembly time can be shortened. According to the second aspect of the present invention, the one manually assembled is automated, so that the efficiency is improved and the quality is stable.

[Brief description of drawings]

FIG. 1 is an explanatory view of a main part of this device.

FIG. 2 is a functional explanatory view of the device of the present invention in which a pin press-fitting device portion and a pin housing portion are omitted.

FIG. 3 is a diagram showing a planar relational position of the planetary gear assembly indexing and conveying part of the present invention, the housing, the pin press-fitting device part, and the pin accommodating part.

FIG. 4 is a diagram showing a pin press-fitting device for press-fitting a pin into a pin hole of a housing.

FIG. 5 is a diagram showing a pin storage portion.

FIG. 6 is a diagram showing steps of pin hole positioning and pin insertion of the planetary shaft.

FIG. 7 is a diagram showing steps of pin hole positioning and pin insertion of the planetary shaft.

FIG. 8 is a diagram showing steps of pin hole positioning and pin insertion of the planetary shaft.

FIG. 9 is a diagram showing steps of pin hole positioning and pin insertion of the planetary shaft.

FIG. 10 is a diagram showing steps of pin hole positioning and pin insertion of the planetary shaft.

FIG. 11 is a diagram showing a planetary gear assembly.

FIG. 12 is a view showing a housing assembly.

[Explanation of symbols]

1 planetary gear 3 planetary shaft 6 pin 7 planetary gear assembly 8 housing 10 indexing platform 11,57 indexing device 12 indexing plate 13 guide block 14 frame 21 knockout 22, 28, 42, 66, 76, 87 air actuator 37, 52, 83 Hydraulic Actuator 31 Sleeve 32 Inserting Rod 38 Shaft Inserting Tool 41 Pin Hole Positioning Tool 48 Rotary Actuator 50 Conveying Stand 51 Frame 55 Chuck Holder 61 Pusher 63 Chuck Claw 72 Storage Case 74 Pushing Slider 82 Slider 86 Pressing Tool

Claims (2)

[Scope of utility model registration request] 1. A device for defining a pin hole position for retaining of a small shaft to be assembled to a device when a small shaft-inserted component is assembled to the device, the central hole into which the small shaft can be fitted. And a rotatably supported sleeve, and an insertion tool that is inserted axially movably in the central hole only from the upper side to a specified position and is relatively movable to the lower end by a compression spring to constantly urge the downward direction. A rod member provided, a pressing member that is concentric with the center hole and can be positioned in two upper and lower positions from below, drive means for rotating the sleeve, and a retainer for a small shaft provided in the sleeve and inserted through the center hole. Pin hole positioning means for fitting the pin hole into the pin hole and a detecting means for detecting that the pin hole positioning means is fitted in the pin hole. The small shaft inserted into the sleeve central hole is connected to the rod member and the pressing member. To the specified position. A retaining pin hole positioning device characterized in that a sleeve is swung in a state of being sandwiched by a frictional force, and a pin hole positioning means is fitted into a pin hole in the middle thereof to return the pin hole positioning means to a prescribed position. 2. An indexing means for placing a planetary gear assembly incorporating a planetary shaft at a prescribed position and moving it to a mounting position to a housing, a knockout means for pulling out the planetary shaft upward at the mounting position, and A sleeve that is concentric with the knockout means and that is pivotably provided above the indexing means, an insertion tool means that is inserted through a center hole into which the planetary shaft of the sleeve can be fitted, and that inserts the planetary shaft into a planetary gear, and the sleeve. Pin hole positioning means fitted to the pin hole of the planetary shaft inserted into the central hole while the sleeve is rotated by the driving means, and indexing conveying means for indexing and positioning the planetary housing and moving it to the assembling position. And the planetary gear assembly assembled in the planetary housing, remove the pin after confirming the retainer pin hole of the planetary shaft. A planetary gear assembly assembling device including means for driving a locking pin.