JPS59176102A - Equipment for mounting vehicle tyre - Google Patents

Abstract

PURPOSE:To prevent mismounting of a tyre by means of a simply constructed mounting equipment which is used in the process of assembling a vehicle by turning the wheel-mounted tyre in the circumferential direction until wheel bolt holes reach specified position holding the tyre and lifting it to the fixing point for mounting. CONSTITUTION:An air cylinder 111 makes a center guide 110 projected into the center hole 502 of a wheel-mounted tyre 500 to mount it on a chucking mechanism 100. This tyre chucking mechanism 100 is operated by an air cylinder 104 to catch the external periphery part thereof and turn it to the point of a specified phase. Once reaching the point of the specified phase, a photoelectric switch 114 is actuated to interrupt the turning and an air cylinder 113 is then atuated to have a pin 112 inserted in a wheel bolt hole 503 so as to fix the tyre. Thereafter, a floating plate 202 is lifted by a carrying mechanism to the point where the tyre is to be mounted, and is positioned to mount the tyre. The equipment, simply constructed, however, may be prevented from mismounting.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in tire mounting devices used primarily in vehicle assembly processes.

A conventional tire mounting device electrically detects the position of a stud bolt on a tire hub, operates a servo mechanism in response to this detection signal, and aligns the position of the bolt hole of the tire wheel with the position of the stud bolt. I try to attach the tire to the tire hub. However, in this case, unless the position of the stud bolt is detected accurately and the tire wheel is positioned accurately, the tire wheel cannot be fitted to the tire hub, and there may be a detection error or positioning error. , a tire installation error occurs.

First, to prevent equipment errors from occurring.

The accuracy of detection and positioning must be improved.

There is a problem that the mechanism becomes complicated.

In view of such problems, one object of the present invention is to accurately match only the rotational phase of the tire wheel with the rotational phase of the tire hub, and to prevent installation errors from occurring even if there are slight errors in other positional conditions. By doing so, it is possible to obtain a mounting device with a simple mechanism and no mounting errors.

The first invention of this case achieves this objective.

It has a mechanism that rotates the wheeled tire in the circumferential direction.

The bolt hole of the tire wheel is rotated by the rotating mechanism.

A chucking mechanism 81 that positions the tire at a predetermined rotational phase and holds the tire on the t-plane, and the chucking mechanism is placed on a floating plate, and the t-plane including the wheeled tire and the Y-Yanoking mechanism is mounted on the chucking mechanism. A floating mechanism that lifts the floating plate upward with a force equivalent to the weight of the plate and holds the tire floating in the air for 9 m, and a movement a1 that moves the grabbed tire so as to attach it to a tire plate. It is characterized by having a structure.

The second invention of the present invention is further attached to the first invention (on the center cap of the tire hub).

The base end has an outer diameter that is large enough to fit into the center hole of the tire wheel, and the diameter becomes smaller toward the tip, and is a mounting kite jig that guides the fitting of the tire wheel to the tire fixing part. It is characterized by having the following.

Therefore, according to the present invention, the rotational phase of the tire wheel is determined by the chucking mechanism in accordance with the phase of the tire fixing part of the tire fixing part that is set at a predetermined rotational position, and then the tire is rotated. Because it is floating, when installing the tire, even if the hole in the tire wheel and the stud bolt on the tire hub do not align slightly in the direction perpendicular to the axis of rotation of the tire, as long as the rotational phase matches each other.
The floating mechanism makes slight positional corrections on the tire side, allowing tires to be mounted without mistakes.

Therefore, positioning other than the rotational phase of the tire does not need to be very accurate.<,1. The configuration of the XL building determining mechanism can be simplified.

Furthermore, when the mounting kite jig is provided on the tire hub of the tire fixing part as in the second invention, when mounting the tire, the center hole of the tire wheel is guided by the kite jig and the center hole of the tire hub is securely attached. Since it is fitted to the center cap,
Easy to install tires.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 10o is a chucking mechanism that grips and holds the wheeled tire 500, and 200 is a floating mechanism that places the chucking machine $%Hoo on a floating plate 2o2 and makes it float.

Reference numeral 300 is a moving mechanism that moves the gripped tire to the tire fixing section 600.

The chucking mechanism 100 is clearly shown in FIGS. 2 and 3, and is constructed as follows.

Cylindrical /'% on the side wall of the floating plate 202
A housing case 101 is fixed, and a ring 102 is loosely fitted in the center of the outer circumference of the housing case 1010).

A cover 103 is provided to prevent the ring 102 from being removed. Case 101. On the outer periphery of the cover 103,
Three pairs of guide shafts 105 are erected at approximately equal intervals, and brackets 106 and 107 are erected on the outer periphery of the ring 102 at intermediate positions between the respective kite shafts 105. on each pair of kite shafts 105.

Tire chuck mechanisms 120 and 140 are slidably provided.
08.109 to the brackets 106, 107. Therefore, the chuck mechanisms 120, 140 are
When the ring 102 rotates on the housing case 101, the brackets 106 and 107 and the links 108 and 109
The link connection allows it to slide on the shaft 1.05. , and the bracket 106 is connected to an air cylinder 104 so that the ring 102 is rotated by the air cylinder 104.

The chuck mechanism 120 is provided through the kite shaft 105 and has one block 121. A shaft 122 rotatably installed in the block 121. A roller 123 is loosely fitted onto the shaft 122 and is slidable in the axial direction of the shaft 122, but is prevented from rotating in the circumferential direction by a pin 124.
．． A stepping motor 125 provided on the block 121. A gear 126 .driven by a stepping motor 125 . The shaft 122 is meshed with the gear 126.
gear 127. connected to gear 127. A spring 128 is wound around the shaft 122 and biases the roller 123 away from the block 121. Chuck mechanism 120
teeth.

The chuck mechanism 140 cooperates with another chuck mechanism 140 to grip and hold the wheeled tire 500, and the tire 500 is gripped by the rollers 123 as shown by the two-dot chain line in FIG. When the stepping motor 125 rotates, the gears 126, 127 . Shaft 122. The roller 124 is rotated via the pin 124, and the tire 500 is rotated. Therefore, by operating the motor 125, the rotational phase of the tire wheel can be adjusted to a predetermined phase.

The chuck mechanism 140 has approximately the same configuration as the chuck mechanism 120, as shown in FIG. 5, which is B recovery in FIG.
Block 141, shaft 142. roller 143,
Pin 144. It consists of a spring 145 and a roller 14.
3 moves toward the block 141 side against the biasing force of the spring 145, and when it reaches a predetermined position, a proximity switch 146 that outputs a detection signal is provided on the body of the block 141.

The center hole 502 of the tire wheel 501 is supported by a center guide 110, as shown in FIG. 3, and the center guide 110 is rotatably supported by a center guide block 115. The Yantakaido block 115 is movably supported by a cylinder bracket 315 (described later), and the center guide 110 is connected to the center hole 50 of the tire wheel 501.
It is moved by an air cylinder 111 so that it can be inserted into and removed from 2. The center guide block 115 has a bolt hole 50.
A photoelectric switch 114 that detects 3 and a phase setting pin 112 that fits into a bolt hole 503 and fixes the rotational phase of the tire wheel 501 to a predetermined 1 phase are provided. The spacing is an integral multiple of the pitch of the bolt holes 503. The six-phase determining pin 112 is moved by an air cylinder 113 and can be inserted into and removed from the bolt hole 503.

The floating mechanism 200 is best shown in FIGS. 1 and 2, and is constructed as follows. A floating plate 202 is slidably supported by a pair of sliding blocks 206 (thus, a pair of kite posts 207,
A pair of guide posts 207 are slidably supported by a pair of kite posts 316 by a pair of sliding blocks 209, and are movable in the H direction in FIGS. 1 and 2. It is said that it is possible to move to Thereby, the floating plate 202 is supported so as to be freely movable in a direction perpendicular to the rotation axis of the wheeled tire 500. The pair of sliding blocks 209 are connected to the pair of counterweights 201 by a pair of chains 205. The middle part of the chain 205 is supported by a pair of sprockets 203, and the total weight of the pair of counterweights 201 is 1 wheel with a tire 500. Chucking mechanism 100
．． floating plate 20211fl block 20
Since the total weight of the kitebost 207 and the total weight of the kitebost 207 is approximately equal to one weight, the floating plate 202 is held by the chucking mechanism 100 and holds the one tire 500 floating in the air. I can do it.

The moving mechanism 300 is clearly shown in FIGS. 1 and 2, and is configured as follows. Traverse trolley 306
are provided with wheels 302 and 303.

The wheels 303 are driven by a motor 305 and the rails 3
01,304 in the L direction. Two rails 307 are provided on the traverse truck 306, and the base plate 309 is moved on the rails 307 in the W direction by an air cylinder 308. Further, a scissor lift 310 is provided on the base plate 309, and the + upper member 31
1 can be raised and lowered in the H direction by hydraulic pressure. Further, two rails 312 are provided on the upper member 311, and one plate 314 is provided on the +.

It is made movable in the L direction by an air cylinder 313. The moving mechanism 100 is configured as described above.
The chucking mechanism 100 is mounted on the plate 314 via the kite host 316 and the cylinder bracket 315. Floating Bing Structure 200 is 3
It is iiJ ability to move dimensionally to the position of the master. In addition, the upper part of the cylinder bracket 315.

An air cylinder 317 is provided, and the cylinder 317 moves the spindle-shaped block 318 to the floating plate 2.
The positioning block 208 provided on the 02 can be fitted into and removed from the positioning block 208.

Next, the action will be explained.

First, as shown in FIG. 3, the air cylinder 111 is activated to cause the center guide 110 to protrude to the left in the figure.
The center hole 502 of the wheeled tire 500 is fitted into the wheeled tire 110, and the wheeled tire 500 is attached to the wheeled tire 100. Next, Figures 1 and 2
As shown, air cylinder 104 is actuated to move bracket 106 clockwise and rotate ring 102 clockwise. Then, the tire chuck mechanisms 120 and 140 slide on the kite shaft 105 due to the action of the links 108 and 109, and the wheeled tire 500
It acts to grip from the outer circumference side. The tire chuck mechanisms 120 and 140 are in contact with the wheeled tire 500 as shown in FIGS. 4 and 5, and when the stepping motor 125 is driven, the tire 500 is rotated in the circumferential direction, and the tire wheel 501 is rotated. When the phase reaches a predetermined phase, the photoelectric switch 114 is activated as shown in FIG.
detects this, generates a detection signal, and stops driving the stepping motor 125. As a result, the rotational phase of the tire wheel 501 is set to a predetermined phase, so the air cylinder 113 is actuated to
12 into the bolt hole 503 of the tire wheel 501 to prevent the rotational phase of the tire wheel 501 from going out of order.

Due to the above action, chucking of the wheeled tire 500 by chucking mm1oo has been completed, so 9
Next, the moving mechanism 300 is operated to move the wheeled tire 50
In order to move the motor 305.0 to the tire fixing part 600, the motor 305. Air cylinder 308. The scissor lift 310 is operated to move the tire 500 in each direction, and the air cylinder 313 is further operated to determine the position of the tire 500 in the L direction.

In this state, the air cylinder 111 shown in FIG. At the same time as removing the bolt from the bolt hole 503, the air cylinder 317 is operated to remove the spindle block 318 from the positioning block 208 of the floating plate 202. As a result, the floating plate 202
The wheeled tire 500 is held by the chucking mechanism 100 and is in a state where it can freely move in a direction perpendicular to rotation #II of the tire 500. . In other words, it is in a floating state.

Next, as shown in the figure, the air cylinder 308 is operated to move the base plate 309 to the left in the figure. On the other hand, as shown in FIG. 6, a device guide jig 400 is attached in advance to the center cap 602 of the one-tire fixing part 600. The outer diameter is just large enough to fit into the center hole 502, and the diameter becomes smaller toward the tip.

As the base plate 309 moves, the center hole 502 of the block tire wheel 501 is fitted into the mounting guide jig 400 as shown in FIG. Therefore, rear wheel 5
The center hole 502 of 01 is guided by the shape of the outer surface of the mounting guide jig 400, and the center cap 602
be fitted into. At this time, the rotational phase of the tire fixing part 600 side is adjusted to a predetermined phase and is fixed so as not to rotate at that position, so the bolt hole 503 of the tire wheel 501 whose phase is also adjusted is .

It is fitted into a stud bolt 603 on the tire hub 601. In this way, even if the position of the center camp 602 of the tire fixing part 600 and the position of the center hole 502 of the tire wheel 501 do not match to some extent, the tire wheel 501 side that is in the floating state can be adjusted slightly. Since this is done by the guidance of the guide jig 400, the tire wheel 501 can be attached to the tire fixing portion 600 without any mistakes.

After the tire 500 has been installed, the air cylinder 30 is also installed.
8 moves the base plate 309.

The tire 500 no longer moves and the tire 500 no longer moves as shown in FIG. As shown in FIG. 5, the springs 128, 145 in the tire chuck mechanisms 120, 140 are compressed, and the block 121.degree. 141 is moved to the left in the figure. When it moves to a predetermined position, the proximity switch 146 outputs a detection signal,
The operation of air cylinder 308 is stopped.

After the installation of the tire 500 is completed, the chucking mechanism 100
One operation is completed by releasing the grip on the tire 500 and removing the mounting kite jig 400 mounted on the center cap 602 of the tire fixing part 600.

Note that the embodiment described above is an embodiment of the second invention having the mounting guide jig 400.

In the first invention, since there is no mounting guide jig, delicate positional adjustment of the tire wheel with respect to the tire fixing part must be done manually. but.

Since the other structural functions are exactly the same as those of the second invention, they can be easily understood without further explanation of the embodiment of the first invention.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various other embodiments may be made within the scope of the claims. For example, in a floating mechanism, a configuration in which the floating plate is lifted upward is provided by providing a compression spring or a tension spring between the floating plate 202 and the plate 314, and adjusting the strength of this spring to the floating plate 202 side. It is also possible to set the strength to correspond to the weight of the object.

[Brief explanation of the drawing]

FIG. 1 is a side view of one embodiment of the device of the present invention, and FIG.
The same front view as in Fig. 1, Fig. 3 is a partially enlarged cross-sectional view of the vicinity of the floating plate, Atsushi No. 4 is A recovery in Fig. 2, and Fig. 5 is B recovery 1 in Fig. 2 Fig. 6. FIG. 2 is an explanatory diagram of a tire mounting operation. 100'・Chucking mechanism 10 housing case 102・ring 103 cover 104, 111, 113... air cylinder 105...
- Guide shaft 106.107... Bracket 108.109... Link 110 Center kite 112 - Phase determining pin 114... Photoelectric switch 115 Center guide block 120.140... Tire chuck mechanism 121.141
・・Block 122.142・Shaft 123.143・・P-ra 124.144・・Pin 125・・Stepping motor 126.127・・Gear 128.145・・Spring 146・・Proximity switch 200°° flow Teing mechanism 201... Counter weight 202, Floating plate 203, 204 Output sprocket 205, Chain 206, 209... Sliding block 207... Guide post 208, Positioning block 300... Moving mechanism 301, 304, 307 ,312...Rail 302.3
03... Wheels 305... Motor 306... Traverse truck 308, 313, 317... Air cylinder 309...
・Base plate 310...Scissor lift 311...Upper member 314...Plate 315...Cylinder bracket 316...Guide post 318 Spindle block 400...Mounting guide jig 500...Tire with wheel 50Tyre wheel 502... Center hole 503, bolt hole 600, tire fixing part 60, tire hub 602, center cap 603, stand bolt out.

Claims (1)

[Claims] (1) A chucking mechanism that has a mechanism that rotates a tire with a wheel in the circumferential direction, and that uses the rotation mechanism to position the bolt hole of the tire wheel at a predetermined one rotational phase and grips the tire at one rotational phase. Then, the chucking mechanism is placed on the floating plate, and the floating plate is lifted upward with a force equivalent to the weight of the floating plate including the wheeled tire and the chucking mechanism. A floating mechanism holds the gripped tire floating in the air, and a moving mechanism moves the gripped tire so as to attach it to the tire fixing part. A vehicle tire mounting device comprising: (It has a mechanism that rotates the tire with 22 wheels in the circumferential direction, and the rotation mechanism rotates the bolt hole of the tire wheel at t.
A chucking mechanism that positions the tire at a determined rotational phase and holds the tire on the t, and the chucking mechanism is placed on a floating plate, and the wheel, including the tire and the chucking mechanism, is floating. 5. Hold the floating plate upwards with 16 force equivalent to the weight of the plate. A floating mechanism holds the gripped tire floating in the air, and a floating mechanism holds the gripped tire floating in the air.
! A moving mechanism that attaches to the foot. It is mounted on the center cap of the tire hub, and the outer diameter of the base end is just enough to fit into the center hole of the tire wheel, and the diameter becomes narrower toward the tip, making it easy to attach to the tire fixing part of the tire wheel. a mounting kite jig that guides the fitting;
A vehicle tire mounting device comprising: