JPH0453875Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automatic wheel assembly device for a vehicle.

(Problems to be solved by conventional technology and inventions) When assembling a rear wheel to an engine assembly of a motorcycle, etc., it is necessary to attach a boss part formed at the center of the spoke part of the rear wheel to the shaft that transmits the driving force of the engine. need to be inserted. In this case, the shaft is a serration shaft in order to reliably transmit the driving force from the engine, and the inner surface of the boss portion of the rear wheel is also shaped to fit therein. Therefore, when assembling the rear wheel to the engine assembly, the serrations interfere with each other, so this fitting and assembling is not easy and must be done manually.

The present invention was devised to solve the above-mentioned problems, and its purpose is to automate the assembly of the serration parts of the wheel and engine assembly, thereby completing the entire assembly of the wheel and engine assembly. The aim is to automate the

(Means for Solving the Problems) Means for solving the above problems are provided in a device for attaching a vehicle wheel to a vehicle body via a shaft and a boss portion in which grooves are formed in the axial direction. A positioning device that lifts up a continuously conveyed wheel to a fixed position and horizontally turns the wheel until a specific point on the wheel is detected by a switch means, and a positioning device that holds and tilts the wheel that has been lifted up above the positioning device. An automatic wheel assembly device is constructed from a chuck device that moves forward and backward, left and right, and up and down, and a guide pin that is attached to the chuck device and slightly rotates the anti-chuck wheel slightly above the vehicle body. .

(Function) Using a positioning device and a chuck device, the continuously conveyed wheel can be automatically moved to a position slightly above the vehicle body where the wheel is assembled, and the wheel can be anti-yacked from slightly above the vehicle body and dropped. Then, by slightly rotating this wheel using a guide pin, the wheel can be automatically and easily fitted to a vehicle body in which vertical grooves are formed in the shaft and boss portions.

(Embodiment) Next, a preferred embodiment of the present invention will be described in detail using a motorcycle as an example with reference to the attached FIGS. 1 to 7.

Figure 1 shows the rear wheel 1 of a motorcycle.
This shows the front head pipe 2.
A main pipe 3 and a frame body 4 are disposed facing rearward, and an engine assembly 6 is attached to the frame body 4 via an engine hanger link 5 and the like. The engine Atsushi 6
An exhaust muffler 7 and an air cleaner 8 are attached to the rear wheel 1, and a rear wheel 1 is attached via a shaft. As shown in FIG. 3, the rear wheel 1 has a tire part 10 and a rim part 11 on the outside, and spoke parts 12 on the inside. The center of the spoke portion 12 is a boss portion 12a with a serration portion formed on the inner surface, which is attached to the engine assembly 6.
The area around the boss portion 12a has an M-shaped cross section,
A cylindrical portion 12b with one end open is welded, and three arms 12c having a hole 13 in the center are welded between the cylindrical portion 12b and the rim portion 11. This embodiment relates to a device for automatically assembling the wheel 1 as described above to the engine assembly 6.

FIG. 2 shows a side view of the automatic wheel assembling apparatus, in which a conveyor 21 is attached to the top of a conveyor base 20 for conveying a plurality of wheels 1, . . . from the right side to the left side in the figure. The conveyor 21
An endless conveyor belt 21c is installed between a drive roller 21a and a driven roller 21b attached to the left and right ends of the upper part of the conveyor base 20, and the drive roller 21a is rotated and operated by a drive motor 22 at the bottom. . Additionally, conveyor belt 21c
A space is provided in the widthwise center of the conveyor 21, and two sheets are arranged on both sides of the space. Also conveyor 21
Guide bars 23, 23 are installed on both sides of the conveyor 21 to prevent displacement of the wheels 1, . 2
The stop position can be determined using a stopper 24 on the 0. The other wheels 1, . . . are fed into the positioning position A one by one by a stocking device 25 provided slightly behind the positioning position A, each time the wheel 1 at the positioning position A is moved to another location. becomes. The stock device 25 consists of a fulcrum pin 26, an arm 27, a cylinder 28, etc., and includes a conveyor base 20.
An arm 27 having stopper pins 29 on both sides is fixed to the end of a fulcrum pin 26 that is rotatably supported on the fulcrum pin 26 , and the arm 27 is attached to the cross beam 20 of the conveyor base 20 .
The cylinder 28 supported by the fulcrum pin 26
When carrying one wheel 1 to the positioning position A, the cylinder 2
8, the arm right part 27b is raised together with the upward stopper 29b, and the stopper 29b is raised.
to stop the movement of the wheels 1,... on the conveyor 21, lower the left stopper 29a of the arm 27, and lower the left and right stoppers 29a, 29.
The wheel 1 located between the positions b is moved to the positioning position a by the conveyor 21. Then cylinder 28
to raise the left arm 27a and its stopper 2.
Move wheel 1 to position 9a and keep it on standby. The fulcrum pin 26 is connected to the conveyor 21.
An arm 2 passes through the front and back, that is, in the front and back directions of the paper in FIG. 2, and has stoppers 29 at both ends.
Since the wheel 7 is fixed, operations such as stopping the wheel 1 can be performed reliably.

Further, a positioning device 30 is provided at the axial center of the conveyor 21 and below the positioning position A of the wheel 1 to lift and horizontally rotate the wheel 1 placed at the positioning position A. The positioning device 30 consists of a lifting cylinder 31, a lifter 32, a lifter drive motor 33, a proximity switch 34 as a switching means, etc., and a guide member 35 is attached to the arm portion 20b of the conveyor base 20.
A lifting cylinder 31 is fixed upwardly, and a guide rod 35 is attached to the upper rod of the lifting cylinder 31 and is slidable up and down in the guide member 35.
A is connected to a mounting plate 36 which is fixed downward. A lifter 32 whose head is fitted into the cylindrical portion 12b of the spoke portion 12 of the upper wheel 1 is attached to the mounting plate 36 so as to be able to rotate upward.
It is rotated via a belt 37 by a lifter drive motor 33 fixed to. That is, the cylindrical portion 12 of the wheel 1 placed at the positioning position A on the conveyor 21 by the lifting cylinder 31
The head of the lifter 32 is inserted into b and raised slightly, and then the lifter 32 is rotated by the lifter drive motor 33 to rotate the wheel 1 on the lifter 32 to a predetermined position. This predetermined position means that the three chuck pawls 45a, ... of the chuck device 45 waiting above the positioning position A are connected to the wheel 1.
It is inserted between the three arm portions 12c, . . . of the spoke portion 12, and is in a position where the chuck claws 45a, . This is done by detecting the arm portion 12c, which is a specific location on the wheel 1, with the proximity switch 34, as shown in FIG.

On the other hand, a conveyor base 40 is disposed near the left end of the conveyor base 20 in FIG. A transport platform 42 to which an upper and lower cylinder 44, chuck device 45, etc. are attached via 43.
is placed so that it can be freely transported in the front-back direction. The conveyor table 42 can also be moved slightly to the left and right in the direction of the conveyor base 20. The arm portion 43
extends in the direction of the conveyor base 20, and a vertically movable cylinder 44 is attached to its end facing downward via a fulcrum pin 52, and the upper part of the vertically movable cylinder 44 is rotatably supported by the upper part of the arm 43. Since the rod of the tilting cylinder 46 is pivotally mounted, the vertically movable cylinder 44 can be rotated left and right about the fulcrum pin 52 by the tilting cylinder 46. Rod portion 44a of the vertically moving cylinder 44
A guide pin 4 is attached to the tip via a support plate 47.
An 8-rotation motor 49 is mounted downward, and the shaft portion of the motor 49 has the guide pin 48 and three chuck claws 45a at the lower end.
A chuck device 45 having... is fixed.
The center of the chuck device 45 coincides with the center of the wheel 1 placed at the positioning position A of the conveyor 21, and the wheel 1 is lifted by the lifter 32 and rotated and positioned by the lifter drive motor 33. The chuck device 45 is lowered by the upper and lower cylinders 44, and its drive source 45b
The wheel 1 is held by the chuck device 45 by gripping the cylindrical portions 12b of the spoke portions 12 of the wheel 1 with book chuck claws 45a, .

Note that the guide pin 48 is attached downward,
When the wheel 1 is held by the chuck device 45, the lower part of the guide pin 48 is inserted into the hole 13 of one arm 12c of the wheel 1.

Here, the overall operation of this embodiment will be explained. First, as shown in FIG. 2, only one wheel 1, ... conveyed by the conveyor 21 is placed on the positioning position A of the conveyor 21 using the stocking device 25, and the wheel 1 at the positioning position A is placed on the lifter 32. It is lifted up by a lifting cylinder 31 via a lifter drive motor 33, and rotationally positioned by a lifter drive motor 33. Next, the chuck device 45 is lowered to the wheel 1 position using the upper and lower cylinders 44, and the chuck device 45 holds the wheel 1, and the guide pin 48 is inserted into the arm hole 13 of the spoke 12 of the wheel 1. After that, the vertical movement cylinder 44
Lift the wheel 1 to a certain height using the transport platform 42.
is moved back and forth, for example, forward, to move the wheel 1 above the engine assembly 6 for wheel assembly. As shown in FIG. 6, the engine assembly 6 has a drive shaft 50 projecting upwardly that engages with the boss portion 12a of the spoke portion 12 of the wheel 1, and the lower portion of the drive shaft 50 is connected to the serration portion of the boss portion. The serration processing part 50a is formed to fit with the serration processing part 50a, and the upper part thereof is a threaded part 50b having a small diameter. Also, on one side of the engine assembly 6, a muffler mounting portion 6a is formed in an overhanging manner and protrudes toward the drive shaft 50 with a recess 51, so that the wheel 1 can be assembled from directly above the engine assembly 6. I'm starting to be unable to do it.

Now, the wheel 1 positioned above the engine assembly 6 is moved to the engine assembly 6 via a vertically moving cylinder 44 by a tilting cylinder 46.
It is slightly tilted with the muffler mounting portion 6a side facing downward, and is lowered toward the engine assembly 6 by the vertical movement cylinder 44. When the lowering of the wheel 1 is stopped in the state shown in a of FIG. 7, the conveyance platform 42 moves slightly toward the engine assembly 6 and inserts the wheel 1 into the recess 51 of the muffler mounting portion 6a. This state is the state shown in a of FIG. 6 or b of FIG. 7,
If you anti-yack wheel 1 in this state, wheel 1 will fall down slightly and the boss part 1 of wheel 1 will fall.
2a enters the drive shaft 50 of the engine assembly 6. At this point, the inclination of the wheel 1 is restored to the horizontal state, but the boss portion 12 of the wheel 1
a is the serration processing portion 50 of the drive shaft 50;
The serration portions of the boss portion 12a and the drive shaft 50 may not fit well together. In this case, the guide pin 48 is still inserted into the arm hole 13 of the wheel 1, so the drive motor 49 rotates the wheel 1, which rotates the guide pin 48, slightly, that is, about one or two serration peaks. If so, the boss portion 12a of the wheel 1 and the serration processing portion 50a of the drive shaft 50 will mesh well, and the wheel 1 will be lowered by its own weight, and the engine assembly 6 and the wheel 1 will be fitted and assembled as shown in FIG. Figure 7 c
It ends like this. Thereafter, the wheel 1 is fixed to the engine assembly 6 with a nut or the like, and the automatic assembly device for the wheel 1 operates in the completely opposite manner to the above case, and the wheel 1 is attached to the conveyor platform 42 having the chuck device 45.
The wheel 1 is moved to the next wheel 1, which is waiting at the position A of the conveyor 21, for assembly. In the figure, 53 is a stopper, and 54 is a shock absorber.

The shape of the chuck device 45 and the position of the gripping portion of the wheel 1 can be freely changed depending on the shape of the spoke portions 12 of the wheel 1.
The engagement and disengagement position of the wheel 1 by the wheel 8 can also be changed freely.

(Effects of the invention) As is clear from the above, according to the invention, the wheel is anti-yacked slightly above the car body to allow the wheel to fall naturally onto the car body, and then the wheel is slightly rotated with the guide pin, so that the shaft and The vehicle body having the vertical groove in the boss portion and the wheel can be automatically and easily fitted together. Therefore, this fitting assembly does not require any manual labor, and the continuously conveyed wheels can be automatically moved onto the assembly vehicle body, so the entire wheel assembly can be automated. Therefore, it is possible to improve work efficiency and save labor costs.

[Brief explanation of the drawing]

Figure 1 is an assembly diagram of the rear wheel of a motorcycle, Figure 2 is a side view of the automatic wheel assembly device,
Figure 3 is a view taken along arrow A-A in Figure 2, Figure 4 is a side view showing the positioning device, Figure 5 is a view of the wheel raised by the positioning device, and Figure 6 is a view showing the positioning of the wheel on the engine assembly. Figure 7 shows the wheel moved and Figure 7 shows the wheel tilted. In the drawing, 1 is a wheel, 6 is an engine assembly, 12a is a boss part, 12c is a specific part of the wheel (arm part), 21 is a conveyor, 30 is a positioning position, 34 is a switch means (nearby switch),
45 is a chuck device, 48 is a guide pin, and 50 is a drive shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] A device for attaching a vehicle wheel to a vehicle body via a shaft and a boss portion having grooves formed in the axial direction, in which a horizontally placed wheel is continuously conveyed to a fixed position. A positioning device that lifts up the wheel and horizontally turns the wheel until a specific point on the wheel is detected by a switch means;
An automatic wheel assembly device comprising: a chuck device that moves horizontally and vertically; and a guide pin that is attached to the chuck device and slightly rotates the anti-chuck wheel slightly above the vehicle body.