JP2000210825A - Tire assembling method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fix a tire corresponding to a vehicle having different number of nuts by using the same nut aligning device by rotating the nuts fed from a nut feeding device by N1 pieces or N2 pieces corresponding to circumferential intervals on the arrangement of all of N1 pieces of nut runners. SOLUTION: This device has a first aligning means 26 for holding the nuts 24 successively fed from a nut feeding mechanism 22 by a predetermined number of pieces, for example, five pieces (N1 pieces) or four pieces (N2 pieces), and a second aligning means 28 for holding the nuts 24 from the first aligning means 26 in a reversed state. The nuts 24 held in the second aligning means 28 are grasped by a nut rubber of a tire assembling mechanism 32 capable of grasping a tire 20 conveyed along a tire convey path 30. On this occasion, the nuts are grasped by N1 pieces of nut runners when a number of pieces of nuts is N1, and the tire is assembled in a state of the remaining nut runners (N1-N2) separated in a standby state when a number of pieces of nuts is N2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire mounting method and apparatus for gripping a tire and automatically mounting the tire on a vehicle by a nut runner.

[0002]

2. Description of the Related Art Conventionally, in a vehicle assembly line, a task of automatically assembling a tire, which is one of heavy parts, to a vehicle body using a robot has been performed.

[0003] An assembling apparatus applied to this type of work usually includes a tire gripping portion for gripping a tire and a plurality of hub nuts (hereinafter simply referred to as nuts) for tightening to hub bolts provided on the vehicle body side. And a nutrunner. And nutrunners are usually
After the required number of nuts are automatically received from the nut supply device, the tires are automatically assembled to the vehicle body by tightening the nuts to hub bolts.

[0004] In this type of assembly line, there is a demand for streamlining production and improving productivity by using a multi-mix type assembly line in which various types of vehicles are mixed. For this reason, for example, Japanese Patent Application Laid-Open No. 7-32
As disclosed in Japanese Unexamined Patent Publication No. 232, a plurality of types of nut cartridges each containing a nut of a different size are juxtaposed, and the nut receiving position of each of the juxtaposed cartridges is opposed to the nut transfer portion. A nut feeder is known in which a traveling body for traveling a nut holder unit is provided, and N nut holders corresponding to the type of the cartridge are mounted on a rotating body which can be divided and rotated at 360 ° / N. Have been.

[0005] In this nut supply device, the rotation of the rotating body in accordance with the type of the nut, and the corresponding nut holder is made to face the nut receiving position or the nut receiving portion of the nut cartridge, thereby transferring the corresponding nut. Is what you do.

[0006]

However, the above-described prior art can cope with a change in the type of nut, but cannot be used for a vehicle model having a different number of hub bolts. For this reason, it has been pointed out that vehicles having different numbers of hub bolts cannot be mixed in the assembly line, and the versatility of the assembly line is reduced.

SUMMARY OF THE INVENTION The present invention solves this kind of problem, and can easily cope with a change in the number of hub bolts, and can efficiently and accurately perform a tire assembling method. And an apparatus.

[0008]

According to the method and apparatus for assembling a tire according to the present invention, N1 and N2 (N1> N2: natural number) nuts are respectively set to a predetermined circumference in accordance with the number of hub bolts of the vehicle. N1 nutrunners that can be arranged at intervals are used. Then, first, the nut supplied from the nut supply device is N1 or N2 corresponding to the circumferential interval at which all the N1 nut runners are arranged.
The books are circulated one by one. The nut runner holds N1 or N2 nuts in a state where the nutrunner is arranged corresponding to the N1 circumferential interval.

Here, when N1 nuts are held by the nut runner, an operation of automatically assembling the tire to the vehicle is performed through all of the N1 nut runners. On the other hand, when the N2 nuts are held by the nut runner, the nut runners are arranged around the N2 circumferential intervals, and after the remaining nut runners are separated from the circumference, the N2 nuts are removed. The tire is automatically assembled to the vehicle via the nut runner.

[0010] As described above, the nuts fed from the nut supply device are rotated by N1 or N2 at a time corresponding to the circumferential interval at which all the N1 nut runners are arranged. For this reason, when the number of nuts is changed from N1 to N2, N2 nuts are arranged around the nut arrangement device while the remaining number (N1−N2) is set.
It suffices to empty only the book), and it is possible to easily cope with a vehicle having a different number of nuts by using the same nut arrangement device.

Further, the nut arranging device has N1 first holding portions capable of arranging N1 or N2 nuts supplied in such a manner that the nuts supplied by the nut runner with the gripping side facing downward are N1 or N2 at a time. An arranging means, and a second arranging means having N1 second holding portions capable of arranging the nuts received from the first arranging means so as to face the gripping side upward by N1 or N2 each. Have. Therefore, the nut is supplied to the nut arranging device sequentially with the gripping side downward, that is, in a stable posture, via the nut supply device, and it is possible to prevent the defective supply of the nut as much as possible. .

Moreover, the nut gripped by the second arrangement means is arranged so that the gripping side is directed upward, so that the nut can be easily and smoothly received from the second arrangement means via a nut runner. Will be possible. For this reason,
The nut supply operation is performed quickly and efficiently.

Furthermore, the first holding portion is provided with a stepped chuck capable of gripping various types of nuts having different dimensions, and it is not necessary to use a dedicated nut holder or the like according to the type of the nut. Thus, with a simple configuration, it is possible to cope with many kinds of different nuts, and it is possible to adapt to a multi-kind type assembly line in response to a change in the number of nuts.

[0014]

FIG. 1 is a front explanatory view of an assembly line 12 in which a tire assembling apparatus 10 for implementing a tire assembling method according to the present invention is arranged.
FIG. 3 is an explanatory plan view of the assembly line 12. In the assembly line 12, the vehicle body 1
6 is carried into the tire assembling position.
Hub part (hub bolt) 1 which is a tire mounting part 6
The tire 20 is automatically mounted on the tire 8 via the tire mounting device 10.

The tire assembling apparatus 10 includes a nut supply mechanism 22 and a predetermined number of nuts 24 supplied one by one from the nut supply mechanism 22 in the same posture, for example, five (N1). Alternatively, first arrangement means 26 for holding four (N2) pieces at a time, second arrangement means 28 for holding the nut 24 in an inverted state from the first arrangement means 26, and holding for the second arrangement means 28 While receiving the nut 24, and gripping the tire 20 conveyed along the tire supply path 30,
And a tire assembling mechanism 32 for assembling the hub with the hub portion 18 of the vehicle body 16. The first arrangement means 26 and the second arrangement means 28 constitute a nut arrangement mechanism 33.

As shown in FIG. 3, the nut supply mechanism 22
The nut runners 114a to 1 have nuts 24 such that the screw holes 24a thereof are directed upward.
It is configured such that the gripping portions 24b gripped by 14d and 116 are conveyed one by one with the side facing downward. The first arranging means 26 includes an indexing table 38 which is rotatably mounted on a wrist 36 of an arm 34a constituting the nut supply robot 34.

As shown in FIGS. 3 and 4, the indexing table 38 has a first holding portion 4 which can hold five nuts 24 freely.
0a to 40e are provided. The indexing table 38 is provided with five rail members 42 separated by a predetermined angle interval, and the first holding portions 40 a to 40 e are mounted on the respective rail members 42 via springs 44 so as to be able to advance and retreat. First
Each of the holding units 40a to 40e has a pair of chucks 50a and 50b that can be opened and closed via a driving unit 48, and as shown in FIGS.
The first stepped portion 5 having an arc shape for holding the outer periphery of the nut 24 having a large dimension is provided on the inner surface sides facing each other.
2a, 52b and arc-shaped second step portions 54a, 54b for holding the outer periphery of the small nut 24S are formed coaxially.

As shown in FIGS. 2 and 7, the second arranging means 28 has a rail member 60 on which a movable table 62 is mounted. A horizontally elongated cylinder 64 is mounted on the rail member 60, and a rod 66 extending from the cylinder 64 is fixed to the movable table 62. On the movable table 62, a base 70 that can rotate around a support shaft 68 as a fulcrum is arranged.
Is rotatable within a predetermined angle range via an actuator (not shown), for example, a cylinder.

On the base 70, there are provided second holding parts 72a to 72e which can be arranged on the same circumference as the first holding parts 40a to 40e constituting the first arrangement means 26. The second holding portions 72a to 72e are provided with support rods 74 that are inserted into the screw holes 24a of the nut 24 and that can hold the nut 24 at equal angles and can hold it (see FIG. 8).

The tire assembling mechanism 32 is composed of an articulated robot. An outer cylindrical member 82 is fixed to the wrist 80 as shown in FIG. 9, and an arm 84a is attached to the outer cylindrical member 82. , 84b are provided. At the ends of the arms 84a and 84b, a CCD camera 86 is provided, respectively.
a, 86b and illumination lights 88a, 88b are mounted to form a stereo camera 90.

As shown in FIG. 10, a rotating base 94 is provided on the inner periphery of the outer cylindrical member 82 via bearings 92a and 92b.
Is rotatably supported, and a support plate 96 is fixed to one end (front end) of the rotation base 94. Outer cylinder member 82
, A motor 100 constituting a rotating means 98 is fixed, and a driving shaft 102 of the motor 100 is
04 is attached to the shaft. An arc gear 106 meshing with the gear 104 is fixed to the support plate 96 (see FIGS. 10 and 11).

As shown in FIGS. 9 to 12, on the support plate 96, a tire gripping means 110 for gripping the tire 20 is disposed at a distance along the circumferential direction of the tire 20, and is spaced apart from the circumferential direction. Multiple return tables 1 movable in the radial direction
12a to 112d and the return tables 112a to 112
Two nut runners 114a to 114d supported by 2d and movable in the circumferential direction and the radial direction; and four nut runners 114a to 114d movable in the radial direction.
While being arranged on the same circumference as 114d, when the nut runners 114a to 114d are arranged on the same circumference adjacent to each other due to a change in the number of nuts, the nut runners 114a to 114d are retreated to positions separated from the circumference. And a possible nutrunner 116. Nutrunners 114a-114d and 116
Are connected via a pair of universal joints 120 to respective motors 118 fixed to the rotating base 94 at predetermined angular intervals (see FIG. 10).

As shown in FIGS. 11 and 12, an opening 122 having a relatively large diameter is formed at the center of the support plate 96. The first driving means 124a to 124d constituting the return tables 112a to 112d are fixed. The first driving units 124a to 124d include, for example, rodless cylinders, and each of the first moving units 1 is movable in the circumferential direction.
26a to 126d each have a second
Driving means 128a to 128d are mounted.

The second driving means 128a to 128d include, for example, a rodless cylinder, and are provided with a nut runner 114 on a second movable table 130a to 130d which is movable in the radial direction.
a to 114d are rotatably supported. First moving table 12
Stopper screws 132a and 132b are provided to define the stop positions of 6a to 126d, respectively, and stopper screws (not shown) are similarly provided to define the advance / retreat positions of the second movable tables 130a to 130d. .

A third driving means 134 having, for example, a rodless cylinder is provided between the first driving means 124a and 124d. The nut runner 116 is rotatably supported on the third movable base 136 that can move forward and backward in the radial direction via the third driving means 134. A mounting plate 140 constituting the tire gripping means 110 is fixed to the support plate 96 via a column 138.

As shown in FIGS. 12 and 13, a relatively large through-hole 142 is formed in the center of the mounting plate 140, and a plurality of, for example, three, Are rotatably arranged. A ring-shaped cam member 146 is rotatably supported by the guide roller 144.
A rod 150 connected to a cylinder 148 slidably mounted on the cam member 146 is fixed to the cam member 146.

The mounting plate 140 is provided with three guide rails 152 spaced at equal angular intervals around the through hole 142 and extending in the radial direction.
, A slide base 154 is arranged. Each slide base 154 and the cam member 146 are connected via a connecting rod 156, and the slide base 154 is provided with a tire pressing member 162 which can advance and retreat via a spring 158 and a pair of guide plates 160. (FIG. 12
reference). A cylinder 164 is fixed to a lower portion of the mounting plate 140, and a locking plate 166 provided on the cylinder 164 is provided.
Can move in the front-back direction. The locking plate 166 is arranged at a position where it comes into contact with the nut runner 116 when the nut runner 116 is arranged at the retracted position.

The operation of the tire assembling apparatus 10 thus configured will be described below in relation to the tire assembling method according to the present invention.

The case where the hub 18 of the automobile body 16 is of a five-axis type will be described. First, as shown in FIG.
Meanwhile, the tire 20 is supplied along the tire supply path 30. Therefore, as shown in FIGS. 3 and 4, the first arrangement means 26 mounted on the nut supply robot 34 is arranged corresponding to the nut supply mechanism 22, and the nuts 24 cut out one by one from the nut supply mechanism 22 are provided. Is in a state where the screw hole 24a faces upward, that is, the grip portion 2
4b is sent out to the first arranging means 26 side with the downward direction.

In the first arrangement means 26, first, the first holding portion 40a is arranged according to the nut supply mechanism 22,
The chucks 50a and 50b are driven to open and close under the action of the drive unit 48 constituting the first holding unit 40a to grip the nut 24. In this case, as shown in FIG. 5, the outer periphery of the nut 24 is held by arc-shaped first step portions 52a, 52b formed on the chucks 50a, 50b, and the grip portion 24b extends downward. ing. In addition, small diameter nut 2
When 4S is used, as shown in FIG. 6, the outer peripheral surface of the nut 24S is held by the arc-shaped second step portions 54a, 54b of the chucks 50a, 50b.

After the nut 24 is held by the first holding portion 40a, the index table 38 is rotated by a predetermined angle, and the first holding portion 40b is located at the nut cutting position. Then, the nut 24 is gripped by the first holding unit 40b via the driving unit 48. Hereinafter, after the same operation is performed and the nuts 24 are gripped by the first holding units 40a to 40e, the first arrangement unit 26 moves from the position corresponding to the nut supply mechanism 22 to the second arrangement unit 28 side. Is done.

As shown in FIG. 8, the first arranging means 26 moved to the second arranging means 28 is arranged vertically downward under the turning action of the wrist 36. In this state, the first
When the arrangement unit 26 moves downward, the first holding unit 40a
The screw holes 24a are inserted into five support rods 74 arranged concentrically in each nut 24 gripped by 40e. Further, by driving each drive unit 48, the five nuts 24 are transferred to the second holding units 72a to 72e.

At this time, the first holding portions 40a to 40e are configured to be able to advance and retreat along the rail member 42. For this reason, the nut 24 is securely connected to the support rods 74 constituting the second holding portions 72a to 72e without being affected by a change in the height position of the nut 24 held by the chucks 50a and 50b. It becomes possible to deliver.

As described above, the five nuts 24 are provided on the second arrangement means 28 with the screw holes 24a facing downward (the grip portions 24).
After being placed (with b facing upward), the nut feeding robot 34 is separated from the second arrangement means 28. On the other hand, the wrist portion 80 constituting the tire assembling mechanism 32 moves to the second arrangement means 28 side, and the nut runners 114a to 114d and 116 grip the nut 24 held by the second holding portions 72a to 72e (FIG. 14). reference). After the nut 24 is gripped via the nut runners 114a to 114d and 116, the wrist 80 is transferred to the tire receiving position.

On the other hand, as shown in FIG.
When the receiving failure of the nut 24 held at 2a to 72e occurs, the base 70 turns around the support shaft 68 as a fulcrum. As a result, the nut 24 left on the second holding portions 72a to 72e is paid out into the cradle 73.

At the tire receiving position, the tire holding member 162 is disposed so as to cover the outer diameter of the tire 20 when the tire gripping means 110 descends from above the tire 20. Therefore, as shown in FIG.
When the rod 48 is driven and the rod 150 is projected in the direction of the arrow, the cam member 14 fixed to the rod 150
6 rotates by a predetermined angle in the direction of the arrow under the guiding action of the guide roller 144. Therefore, each slide base 154 connected to the cam member 146 via the connecting rod 156 moves inward in the radial direction of the tire 20 under the guide action of the guide rail 152, and the tire pressing member 162 Is gripped. When the tire 20 is gripped by the tire gripping means 110, the tire 20
And the nut runners 114a to 114d and 116 are aligned.

As shown in FIG.
Grips the tire 20 and the nut runner 114
The wrist 80 is conveyed along the assembly line 12 with the a to 114 d and 116 holding the nut 20 and being disposed in the tire 20. And the wrist 80
Is the car body 1 located at the tire mounting position
6 is moved to a predetermined hub portion 18 side.

In the tire assembly mechanism 32, the outer cylinder member 8
2. Stereo camera 90 through arms 84a and 84b
Is installed. Then, the hub unit 18 is imaged by the CCD cameras 86a and 86b, and the phase of the tire 20 held by the tire holding unit 110 is adjusted based on the image signal.

Specifically, as shown in FIGS. 10 and 11, when the gear 104 is rotated via the drive shaft 102 under the action of the motor 100, the arc gear 106 meshing with the gear 104 moves. Then, the support plate 96 rotates integrally with the arc gear 106 by a predetermined angle. Support plate 96
Are provided with nut runners 114 a to 114 d and 116 and tire gripping means 110, and determine the phase of the tire 20 gripped by the tire gripping means 110 based on the imaging process of the hub 18 by the stereo camera 90. Performed easily and quickly.

Next, when the wrist portion 80 moves toward the hub portion 18, the tire 20 gripped by the tire gripping means 110 receives the hub 20 via the elastic force of the spring 158 abutting on each tire pressing member 162. Pressed and held on the part 18 side. In this state, the nut runners 114a to 114d and 116 rotate under the driving action of the motors 118, and the nuts 24 held on the nut runners are screwed into the hub portion 18 to perform the mounting work of the tire 20.

When the hub 18 of the vehicle body 16 is of a four-axis type, the adjustment of the tire assembling mechanism 32 is performed as described below. First, as shown in FIG. 3, in a state where the four nuts 24 are held in the first holding units 40 a to 40 d constituting the first arrangement unit 26 from the nut supply mechanism 22, that is, when the first holding unit 40 e is empty. In this state, the first arrangement means 26 is transferred to the second arrangement means 28 via the wrist part 36. Then, the first arrangement means 26
Are arranged downward, and the second
The four nuts 24 are provided in the screw holes 2 in the holding portions 72a to 72d.
4a is arranged downward. The second holding unit 72
e is an empty state.

Further, nut runners 114a to 114d constituting the tire assembling mechanism 32 are
a to 72d while holding the nut 24, the nut runners 116a to 114d and 11
6 is performed. Specifically, as shown in FIG. 16, the cylinder 164 is driven to project the locking plate 166 forward, and the locking plate 166 is
(See a two-dot chain line in FIG. 16).

Next, as shown in FIG. 11, the third moving table 136 moves in a radially outward direction under the driving action of the third driving means 134, and the nut runner 116 supported by the third moving table 136 is moved. The nut runners 114a to 114d are retracted to positions separated from the circumference on which they are arranged (FIG. 11).
Middle, two-dot chain line). Next, the first driving means 124a-
124d is driven, and the first movable tables 126a to 126d move in the circumferential direction by a predetermined distance, respectively. For this reason, the nut runners 114a to 114d are arranged at predetermined intervals on the same circumference (see FIGS. 17 and 18).

Further, when the cylinder 164 is driven and the locking plate 166 is displaced rearward, the locking plate 166 engages with the tip of the nut runner 116 and the nut runner 11
6 can be moved to the support plate 96 side to prevent interference with the tire 20 (see FIG. 19). As a result, the nut runners 114a to 114a to
114d is positioned corresponding to the four-axis type hub portion 18, and the new tire 20
Is gripped. After the tire 20 is transferred to the hub portion 18 and subjected to phase matching, the nut runners 114a to 1
The mounting operation of the tire 20 is performed by the four nuts 24 under the rotating action of 14d.

Further, when the pitch circle diameter of the hub bolt (not shown) provided on the hub portion 18 is changed, the following operation is performed. That is, as shown in FIG. 18, the second drive means 128a to 128d are driven, and the nut runners 114a to 114d advance and retreat in the radial direction, so that it is possible to cope with two types of changes in the pitch circle diameter.

As described above, in the present embodiment, the first and second holding portions 40a to 40e and 72a to 72e constituting the first and second arrangement means 26 and 28 are composed of the five nut runners 114a to 114d and 116. Are circumferentially arranged corresponding to circumferential intervals arranged on the same circumference.
When the hub portion 18 of the vehicle body 16 is of a five-axis type, the first holding portions 40a-4
After the nuts 24 are once held in the first holding portions 40a to 40e, respectively, the first holding portions 40a to 40e are moved from the second holding portions 72a to 72e.
The nut 24 is delivered to the nut runners 114a to 114d and 116 from the second holding portions 72a to 72e.

On the other hand, when the hub portion 18 is of a four-shaft type, the first holding portions 40a to 40d
After the four nuts 24 are once held in the second holding portion 7
The nut 24 is held in an inverted state by 2a to 72d, and the nut 24 is held by nut runners 114a to 114d. Next, the nut runner 114
a to 114d are circulated at a predetermined circumferential interval corresponding to the four-axis type hub portion 18, and the nut runner 1
The nut runner 11 is separated from the circumference of the nut runner 11.
The work of tightening the nut 24 is performed via 4a to 114d.

Therefore, in the nut arrangement mechanism 33, it is not necessary to use a different structure regardless of whether the hub portion 18 is a four-axis type or a five-axis type.
It is only necessary that the nuts 6 and 28 hold four nuts 24 or five nuts 24 at a time. Thereby, the same nut arrangement mechanism 3
The effect of being able to easily cope with either the five-axis type hub portion 18 or the four-axis type hub portion 18 is obtained.

Further, the chucks 50a and 50b constituting the first holding portions 40a to 40e are provided with nuts 2 having different dimensions.
4 and 24S, arc-shaped first and second step portions 52a and 52b and 54a and 54b are provided, respectively. Therefore, two types of nuts 24 and 24S having different dimensions can be reliably held by the same first holding portions 40a to 40e, and the configuration is simplified. Accordingly, it is possible to easily adapt to a change in the number of hub portions 18 and a change in the type of the nut 24 (24S), and there is an advantage that a multi-mixed assembly line 12 can be configured. .

[0050]

According to the method and apparatus for assembling a tire according to the present invention, only N1 or N2 nuts are arranged corresponding to the circumferential interval at which all N1 nutrunners are arranged, and the nutrunner is used to set the nuts. After the nut runner is held and the position of the nut runner is adjusted according to the number of the nuts held by the nut runner, a tire assembling operation is performed. For this reason, even if the number of hub bolts of the vehicle is changed, there is no need to change the configuration of the nut arrangement mechanism for supplying the nuts to the nut runners, thereby reducing equipment costs and installation area. Moreover, it is possible to cope with a change in the number of hub bolts, and it is possible to effectively incorporate the hub bolts into a multi-mixed assembly line.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of an assembly line in which a tire assembling apparatus for implementing a tire assembling method according to an embodiment of the present invention is arranged.

FIG. 2 is an explanatory plan view of the assembly line.

FIG. 3 is an explanatory side view of a first arrangement means and a nut supply mechanism constituting the tire assembling apparatus.

FIG. 4 is an explanatory plan view of FIG. 3;

FIG. 5 is a partial longitudinal sectional view showing a state in which a nut is held by the first arrangement means.

FIG. 6 is a partial longitudinal sectional view showing a state in which a nut smaller in diameter than the nut is held by the first arrangement means.

FIG. 7 is a partial vertical cross-sectional explanatory view of a nut arrangement mechanism that constitutes the tire assembling apparatus.

FIG. 8 is an explanatory view of a main part of the nut arrangement mechanism.

FIG. 9 is an explanatory front perspective view of a tire assembling mechanism constituting the tire assembling apparatus.

FIG. 10 is an explanatory longitudinal sectional view of FIG. 9;

FIG. 11 is a front view of FIG. 9;

FIG. 12 is a partially exploded perspective view of FIG. 9;

FIG. 13 is an explanatory front view of a tire gripping means.

FIG. 14 is an explanatory view when a nut aligned with the second arrangement means is held by a nut runner.

FIG. 15 is an explanatory view when dispensing nuts remaining in the second arrangement means.

FIG. 16 is a perspective view illustrating a state in which four nuts are held by the nut runner.

FIG. 17 is an explanatory perspective view when retracting an empty nut runner.

FIG. 18 is an explanatory front view when the remaining nut runners are arranged on the same circumference.

FIG. 19 is an explanatory perspective view of FIG. 18;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Tire assembly apparatus 12 ... Assembly line 16 ... Automobile body 18 ... Hub part 20 ... Tire 22 ... Nut supply mechanism 24 ... Nut 26, 28 ... Arrangement means 30 ... Tire supply path 32 ... Tire assembly mechanism 33 ... Nut arrangement mechanism 34 ... Nut feeding robot 36, 80 ... Wrist part 40a-40e, 72
a to 72e: holding section 48: driving section 50a, 50b: chuck 52a, 52b, 54a, 54b: step section 74: supporting rod 82: outer cylinder member 94: rotating base 96: supporting plate 98: rotating means 110 ... Tire gripping means 112a-112d ... Return table 114a-114d, 116 ... Nutrunner 118 ... Motors 124a-124d, 128a-128d, 134 ... Driving means 126a-126d, 130a-130d, 136 ... Movable table 132a, 132b ... Stopper Screw 140 mounting plate 146 cam member 148, 164 cylinder 158 spring 162 tire pressing member 166 locking plate

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 3C030 CC05 3D114 AA01 AA04 AA11 AA12 BA01 BA24 CA05 DA08 DA11 DA12 EA11 EA12

Claims (5)

[Claims] According to the present invention, the tire is mounted on a vehicle through N1 nut runners, each of which can be arranged at predetermined circumferential intervals, with N1 and N2 (N1> N2: natural number) nuts corresponding to the number of hub bolts of the vehicle. A tire assembling method for automatically assembling a tire into a vehicle, wherein the nut supplied from a nut supply mechanism is provided with N1 or N2 nuts corresponding to a circumferential interval around which all N1 nut runners are arranged. A step of circulating each other, and N1 or N2 circling each of the nuts,
Holding the nut runners arranged at N1 circumferential intervals, and gripping the tire when the number of the nuts is N1,
Assembling the tire to the vehicle via all the one nut runner; and when the number of the nuts is N2, the nut runner is set to N2.
While being arranged around the circumference of the book, the remaining (N1 book-N2
And N) separating the nut runner from the circumference on which the N2 nutrunners are arranged, and then gripping the tire and assembling the tire to the vehicle via the N2 nutrunners. A tire assembling method characterized by the above-mentioned. 2. The method according to claim 1, wherein the nut supplied from the nut supply mechanism with the gripping side of the nut runner facing downward is set at a circumferential interval at which all of the N1 nut runners are arranged. Correspondingly, circulating N1 or N2 pieces in the first arranging means in the same posture in the first arranging means; and arranging the N1 or N2 nuts from the first arranging means so that the gripping side faces upward. A tire assembling method, comprising: a step of passing the nut to the two arranging means and arranging it around; and a step of passing N1 or N2 nuts from the second arranging means to the nut runner. 3. A tire having N1 nut runners capable of arranging N1 and N2 (N1> N2: natural number) nuts at predetermined circumferential intervals in accordance with the number of hub bolts of a vehicle. A tire assembling mechanism to automatically assemble the vehicle, a nut supply mechanism to supply the nuts one by one in a vertical posture, and a nut supplied from the nut supply mechanism to N1
A nut arrangement mechanism for circulating N1 or N2 nuts corresponding to the circumferential interval at which all of the nut runners are circulated, and transferring the N1 or N2 nuts to the nut runner. A tire assembling apparatus characterized by the above-mentioned. 4. The apparatus according to claim 3, wherein the nut arranging mechanism includes a nut supplied from the nut supplying mechanism with a side gripped by the nut runner facing downward.
A first arrangement means having N1 first holding portions that can be arranged to be circulated N1 or N2 in the same posture corresponding to a circumferential interval in which all of the N1 nut runners are arranged, N1 or A second arrangement having N1 second holding portions capable of receiving N2 nuts from the first arrangement means and arranging N1 or N2 nuts in such a manner that the gripping side is directed upward. Means, and a tire assembling apparatus, comprising: 5. The tire assembling apparatus according to claim 4, wherein the first holding portion includes a stepped chuck capable of holding a plurality of types of nuts having different dimensions.