JPS6018403A - Hub bolt positive detecting device used for automatic tire fitting device - Google Patents

Abstract

PURPOSE:To enable the detection of the toe-in and camber of a wheel hub and precisely perform the positive detection by providing a Z-direction detection element brought into contact with a restricted/held hub bolt and inclination detection elements brought into contact with at least three points of the wheel hub surface. CONSTITUTION:A position detecting device 80 is installed on the side face of a base body 72 of a hand unit and has a nearly L-shaped base plate 81 hinge- coupled with the base body 72. A Z-direction restricting plate 88 is provided at the tip of the horizontal leg 81a of the base plate 81 liftably along a guide rod 90 by an action of an air cylinder 89, thereby the position of a hub bolt 21 on the wheel hub H is corrected and restricted/held at a fixed position. A Z-direction detection element 92 is arranged on one of a pair of arms 93 operated so as to pinch the hub H from both sides, and inclination detection elements 99A- 99C are arranged on a ringlike X-direction detection element 86 made in one body with the base plate 81 to be utilized for the position detection of the hub plate 21.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hub bolt position detection device used in an automatic tire mounting device for automatically mounting tires to a vehicle body in an automobile assembly process.

There is already a known device that automatically performs tire mounting work, which has traditionally been done exclusively by hand, from tire mounting to bolt tightening. Publication No. 50-122783). In this glaze device, a tire mounting unit is arranged on the life 9 side of the single body conveyance line, and the wheel 1 on the single body side is determined based on the detection by the hub bolt position detection device installed integrally with the tire mounting unit. Hachikatsu n on the tire mounting unit
After aligning the tire with the tire, the tire mounting unit can be moved forward or backward to mount the tire on the wheel hub on the vehicle body and even tighten the nuts.

In addition, the above tire mounting unit is installed in the same direction on three orthogonal axes.
It has the function of moving and the function of rotating the rotor around the vertical axis.

However, as shown in Japanese Patent Application Laid-Open No. 50-122783, for example, the two-dimensional position of the hub bolt is detected by a hub bolt position detection device, and the tire is determined based on this inspection/11th inspection. J: Mere installation is not always sufficient, and in some cases, it may not be possible to insert the hub bolt into the bolt hole f tY' on the road wheel side. In other words, when the tire is installed, the wheel huff is
Normally, there are four inclination directions of 9 feet, including toe-in and camber, so even if you simply detect the two-dimensional plane position of the half bolt and install the tire as described above, The hub bolt and bolt hole may not match due to the inclination angle of It is necessary to correct the unit side and position the tire so that the tire gripping center on the tire mounting unit side is perpendicular to the wheel base surface, and then install the tire.

This invention was made against the above background.
It is an object of the present invention to provide a device capable of highly accurate hub bolt detection by detecting even the toe-in and camber of the hub bolt.

Hereinafter, the implementation of the present invention will be explained in detail based on the drawings.

First, the overall outline of the apparatus of the present invention will be explained based on FIGS. 1 and 2. Reference numeral 1 denotes a car body 1G feed line for positioning the car body B on the trolley 2 and conveying it in a plate-like manner; is the tire transport conveyor δ installed above the vehicle body transport line 1. SR is the tire mounting station b. Sb is the backup station i 'g installed after the tire mounting station S8. Tire mounting station S1
There are a total of 4 installed on both sides of the car body JXtj feed line l.
The tire mounting unit 50 of the stand and the tire support are the passing devices)
S: Tire phasing device 20, nut supply device <1llO, and tire mounting unit 50 1Lli
The hub bolt position jr attached to I (the height of the detection device a80, the tire discharge conveyor 14 which is the tire discharge area)
The bank amplifier station Sb is equipped with a manual nut runner 873 in place of the tire mounting unit 50 described above.

At the tire mounting station S1, the tire phasing device 20 receives the tires W dropped from the tire transport conveyor 10, performs phasing, and places the tires Wf on the tire mounting unit 50 on which the phasing has been completed. The hand unit 55 grips the wheel bald H.
It is a spore thing that can be attached to a Nando. At this time, if any abnormality occurs on the tire mounting unit 50 side, such as when the tire W cannot be mounted on the wheel hub H side, the corresponding tire mounting unit 50 moves back to the reverse limit position and the tire it grips W is discharged to the tire discharge conveyor 140, and thereby the tire mounting station S
The tires W that were not installed at L are sent to the backup station Sb, and at this grasshopper amplifier station Sb, the single tires B sent from the tire mounting station S wing are sent to the backup station Sb. ! 1-Wait and then be installed manually by an operator. In addition, if the tire mounting unit 50 takes a long time to recover, Yangsha should originally
5. The tires W are not loaded from the conveyor 10 to the tire mounting station S□, but the tires W are conveyed to the end of the tire conveyor 10 and sent to the bank up station Sb. 11. In bank amplifier 2 channel Sb. 'j 5
The tire W is attached manually by the worker.

Next, the mute 111 of each device i=f will be explained following Il+rt.

First, the car body B is firmly clamped δ by the clamp device 4 and the gauge plate 5 (FIG. 3) provided at appropriate positions on the bogie 2, and then the car body B and the bogie 2 are flattened together on the car body conveyance line 1. By chance, one will be sent to you.

The tire conveyor 10 is arranged at a predetermined inclination just above the vehicle body conveyance line 1, and as shown in FIG. 1, it branches into left and right length conveyors lla and llb before the tire mounting station S. .

These dump conveyors 1.1 & 11b are extended to Grasshopper Amplifier Station Sb. And, the 61st prisoner (as shown in BJ, the slide 1 which reciprocates in the horizontal direction by the air cylinder 13)
r-14 is provided so that the tires W are divided into nine parts between left and right Sapco/bears lla and llb.

In addition, a tire input groove 4rl 1.5 is provided on each of the left and right conveyors 11a-, 11b at a position corresponding to right above the tire phasing device it 20.

As shown in FIG.
A retractable stopper 16 that stops the tire W stopped at the stopper 16, a movable conveyor 17 that changes the position of the tire W stopped by the stopper 16 to an upright position and drops it under its own weight, and a movable conveyor 17 that changes the position of the tire W that has been changed to the upright position. Shank of the second slide that temporarily stops at the chute 18 yen - 19 and 47
Tire position alignment device fi < 20
The tire W is held upright until the glue lid 24 comes to pick it up. Furthermore, by placing the stopper 16 in the retracted state, the tire W can be transported to the iα contact amplifier station Sb without falling to the tire mounting station S or the tire mounting station S.

The tire phase alignment device 20 is for standardizing the positional relationship of the bolt hole 9 (101st prisoner) on the road wheel R side with respect to the hub bolt 21 (εrrJ81) of the wheel hub H, and is shown in FIG. It's made as shown. In FIG. 9, 22 is a base, 23 is a main body of the device movably provided on the base 22, and 24 is guided by a υ guide rod 26 by the operation of an air cylinder 25 to set the tire loading mechanism to the illustrated position. 15 shooters 18
It moves up and down between the 7-tar.

Further, reference numeral 27 denotes a tire pedestal that can be raised and lowered without interfering with the lifter 24. This tire pedestal 27 is provided with a vehicle type signal from the outside to the motor that is driven by its drive source. It moves up and down to a position commensurate with the individual tire size and diameter, and a motor 2 is installed on the tire receiving surface.
The roller 30 is rotationally driven by .delta.9. The height position of the tire pedestal 27 is confirmed and detected by a group of multiple photoelectric switches 31 provided at the 1111th position. That is, as the lifter 24 rises to the lower part of the chute 18 of the tire loading mechanism 15, the shutter 19 described above is retracted, whereby the tire W, which was in an upright state within the chute 18, is transferred to the lifter 24. Then, furthermore, the tire 24 descends again to the lower limit position, and the tire W is moved to the tire pedestal 2.
It can now be transferred to 7.

Further, 32 is a slider installed ξ above the tire pedestal 27 and swivels horizontally by the operation of an air cylinder 33. This slider 32 has a 2* locate pin 34 and a light receiver 35 of the light '11L switch 35. In addition to 'B', a tire centering center 36 is provided which is movable relative to the slider 32. 3
Reference numeral 7 denotes a swing arm which can be rotated around a hinge base/39 by the operation of an air cylinder 38, and a light projector 35A of the photoelectric switch 35 corresponding to the light receiver 35B is attached to the tip of this swing arm 37. The swing arm 37 is rotated δ so that the light receiver 35B and the light emitter 35A can be relatively avoided to function as a photoelectric switch. 40 is tire W7 on tire pedestal 27! : A pair of tire positioning arms installed on both sides of the arm so as to face each other (however,
In FIG. 9, one positioning arm 40 is drawn above the tire W;
I'm getting V.

When the tire W is transferred onto the tire pedestal 27 as described above, the positioning arm 40 moves to the right in FIG. Position.

Next, as the slider 32 moves forward with respect to the tire W, the center 36 further moves forward independently, and the center...r3
6 engages with the hub hole of the 4-wheel wheel for centering, and also presses the center of the wheel into the disk of the 34-wheel wheel R. Thereafter, the roller 3° is rotationally driven to rotate the tire W around the center 36, and during the rotation, light is transmitted through either of the bolt holes 9 to the emitter/receiver 35A, 35 of the switch 35.
When the optical axis between 'B' and B is connected, the rotation of the roller 3o immediately stops. As a result, the four bolt holes 9 are aligned, so the locate pins 34 engage with the respective bolt holes 9, and phase alignment of the tires W is completed by one or more bolt holes 9.

Here, the tire W whose phase alignment has been completed as described above will be gripped by a hand unit 55, which will be described later. Do it before you do it/
At the same time, when the tire W is gripped by the hand unit 55, the positioning arm 40 is rotated and retracted by the operation of the rotary cylinder 44.

The tire mounting unit 50 receives the tire W for which the phase alignment has been completed from the tire alignment device 20, and attaches it to the wheel hub (rake disc H) of the vehicle body B lid to the wheel hub (rake disc H) to the wheel hub (rake disc H) of the vehicle body B lid. It is in charge of
The details are shown in FIGS. 3 to 5 and 10.

This mounting unit 50 is roughly divided into an X-axis base 52 that can slide on a base 51 in the X direction;
A YIIIII base 53 whose top can be slid in the Y direction, a two-axis base 54 which can be raised and lowered by 20,000 degrees with respect to the Y-axis base 53, and a hunt unit with a tower 11 on the two-axis base 54. ! : , a hub bolt position detection device 80 attached to the side of the hand unit 55,
Further, the Z'fill base 54 is configured to be W4 so that it can turn in the θ direction and tilt in the Y direction. J to this
:The tire mounting unit 50 as a whole constitutes a type of robot of 5-axis type with 3 axes of i-line rotation and 2 axes of rotation.

In other words, Figure 1O (however, Figure 24110 is for drawing purposes,
19 different plane drawings are attached to form one drawing)
As shown in FIG. on the p guide rail 61 by the Y-axis drive mechanism consisting of ? ! Slide in the l-Y direction. Further, the biaxial base 54 is rotatably supported by the sleeve 62, and the sleeve 62 of C is γ
Hold it on the shaft base 63, roughly C γi! The 911 base 63 is supported by a pin 65 connection to the collar 64. This collar 64 is guided by three guide bosses 60 (see Figure i 3) vertically disposed on the Y-axis base 53 so as to be movable up and down, and therefore has two shafts consisting of a motor 67 and a ball screw 68. C driving the drive rock 45 causes the 12-shaft base 54 including the three 162 to move up and down in two directions. In addition, the motor 67, ball screw 68, collar 64, etc. also serve as a γ-axis drive mechanism that controls adjustment in the Y direction, and one side of the aforementioned bottle 65 connection-8 has an elongated hole 69. , by making the feed pins of the pair of ball screws 68 different from each other, two parts including the sleeve 62 are formed.
The entire shaft base 54 tilts in the Y direction. Incidentally, the inclination Nb angle in the Y direction with respect to the horizontal plane referred to here corresponds to the camber that the wheel hub H to which the tire is mounted originally has, as will be described later.
The Q', u base 54 can be rotated in the θ direction by a θ-axis drive mechanism consisting of a motor 70 and a chain 71. Here, the turning angle in the θ direction is not the same as the turning angle of the hand unit 55;
This corresponds to the toe-in that H originally represents M.

Therefore, the tire mounting unit 50 receives detection/signals regarding toe-in and camber from a hub bolt position detection device 80, which will be described later, and executes tire mounting work while controlling the attitude accordingly.

As shown in FIG. 10, the hand unit 55 also includes four nut runners 73 within its base body 72, and three hinged tire hands 74 on the outer periphery of the base body 72 (however, The remaining 92 lines have been omitted). And these tire notes.

By sliding the bracket 76 δ using the air 7/dam 5, the bracket 74 can be opened and closed all at once.

Furthermore, the base body 72 slides in the X direction on the base 54 by the operation of an air cylinder 77, while the nut runner 73, together with the auxiliary base 79, slides independently against the base body 72 by the operation of another air cylinder 78. It has C and g configurations that can slide in the X direction.

The hub bolt position detection device 80 is used to align the phase of the bolt hole 9 of the tire W (I (11) and the phase of the bolt 21 of the wheel hub II@), which have been phased as described above. The details of +: are shown in Fig. 11 (however, for drawing purposes, Fig. 11N is made by combining drawings of different cross sections into one drawing).

This hub bolt position detection device 80 is installed on the side surface of the base body 72 of the hand unit 55 described above, more specifically, at a position 11f that is phase-shifted by 90 degrees with respect to the tire hand 74, centered on the biaxial base. Shi1 ai.

Reference numeral 81 denotes an abbreviated base plate, and the lower end of this base plate 81 is rotatably hinged to the base 72, while the upper end of 7 is connected to the coil spring 82 and the Kunjong rod 83. It is elastically supported via a da/bar unit 84. And this damper unit 8
A position detector (potentiometer) 85 is provided to detect the position of the hub pole 21 in the X direction, and a ring-shaped X direction detector 86 integrated with the base plate 81 is connected to the hub pole Place the hinge pin 102 between the center of rotation and the base plate 8 when it comes into contact with the bolt 21.
The position of the bolt 21 in the X direction is detected from the amount of tilting displacement of the bolt 21 at 64 degrees (base gray) 81 is in a vertical state in a normal state.

The wing is a substantially wedge-shaped 20,000-turn regulation plate (hub bolt regulation plate) attached vertically to the tip of the horizontal leg 81a of the base plate 81, and this 20,000-cycle regulation plate 88 is guided by the operation of an air cylinder 89. The rod 90 has a vertical movement element attached to it, and as shown in Fig. 8, by raising δ to 20,000 degrees, the two hub bolts 21 (21 b and 2 IC) that engage each other will move 7 times. The wheel knob is restrained by rotating the wheel knob HK until it comes into contact with the standard J surface 88 a. Then, by the operation of the air cylinder 91, z
As the direction detector 92 descends, one hub bolt 21
As a result, the position of the hub bolt 21 is detected 20,000 times by the position detector 95 as shown in Gh;b.

Further, reference numeral 93 denotes a pair of arms arranged in the same manner on both sides of the X-direction detector 86 in the horizontal direction, and 94 denotes an arm 93.
(However, the arm 93 and the Y direction detector 94 are drawn with their positions shifted vertically in the drawing.) is an air cylinder 9 disposed as a bridge between the two.
6, it slides together with the arm 93 along the guide rod 97 and is inserted into the knob from both sides of the wheel hub H. and,
Based on the amount of displacement of the arm 93, the Y-direction position of the Haspol 21 is detected by a Y-direction position detector (potentiometer) 98.

99A, 99B, and 99C are detectors attached to the X direction detector 86 to detect the inclination g (including both toe-in and camber) of the wheel baldness. These inclination detectors 99A to 99C are As shown in No. 8N, three detectors are arranged at positions δ corresponding to PI + P2 + PM on the wheel hub H (however, in Fig. 11, the three detectors are drawn on the same plane). ), each of the tilt detectors 99A to 99C is connected to an air cylinder 100.
Press the operation button on the wheel hug H and measure the displacement using each position detector (potentiometer) 10LA.
, 10IB, 10IC and then use the operator to detect the inclination of the wheel hub H as a whole. That is, by detecting and calculating the relative displacement amount of the inclination detectors 99A and 99B, toe-in, which is determined by the inclination between the left and right sides of the wheel hub H, can be detected, and similarly, the relative displacement of the inclination detectors 99B and 99C is determined By detecting and calculating the amount, the camber, which is the vertical inclination of the wheel huff degree H, can be determined.

Now, a series of operations of the hub bolt position detection device 80 described above will be explained using FIG. 12 in addition to FIGS. 8, 10, and 11.

This hash bolt position detection device unit 80 has a two-axis base 54
is rotated 90 degrees in the θ direction and the hand unit 55 is rotating with the tire phase alignment device 20, that is, the hub bolt position detection device 80 is in rotation with the wheel hub H. It is used to regulate and detect the position of 21. First, the x+igl base 52 moves forward by starting the X-axis motor 56, thereby
Since the gallo detector 86 comes into contact with the tip of the hub bolt 21, the entire base plate 81 tilts around the hinge pin 102. The relatively rough position of the first hub bolt 21 in the X direction is detected by the position detector 85,
The X-axis base 52 is moved back again.

Next, the regulation plate 88 is raised 20,000 times, and as shown in FIG.

The wheel hub H- is forcibly rotated until 21 c touches, and then the same regulation plate name on both sides descends. Next, the pair of Y-direction detectors 94 move forward relative to each other, and the entire wheel hub H is rotated until the two hub bolts 21 are in contact with each Y-direction detector 94, as shown in FIG. Y
All the hub bolts 21 are inserted between the direction detectors 94.

From the amount of displacement of the Y-direction detector 94 at this time, the position detector 98
Detects the position of the hub bolt 21 in the Y direction, and detects the position f1 of the hub bolt 21 in two directions using another position detector 95. Then, the Y of the hub bolt 21 is
Based on the two-way position and the two-way position, calculate the center position of the wheel hub (), feed back the center position information of C to the control system of the tire mounting unit 50, The center of the direction coincides with the center position of the wheel hub H. In addition, at this time, the Y-direction detector 94
etc. have temporarily retreated.

Next, move the tilt detectors 99A to 99C forward δ all at once.
As shown in No. 81, there are three positions P on the wheel hub H.
1 r p and l ps, respectively, so that the position detectors 101A to 10IC detect the inclination of the wheel hub H, that is, the toe-in and camber, respectively.

Then, based on the detected data regarding toe-in and camber, the rotational movement of the tire mounting unit 50 is controlled in the θ and γ directions, and the X-axis of the tire mounting unit 50 is corrected to be perpendicular to the wheel hub H surface. do. At this time,
Tire mounting unit 50ヲθ.

By moving in the γ direction, the center of the wheel/% bar H and the center of the tire mounting unit 500Y and Z directions will be shifted, so move the tire mounting unit 50 in the Y and Z directions at the same time. Performs one-center misalignment correction. By the above operation, the X axis of the tire mounting unit 50 becomes perpendicular to the surface of the wheel hub H.

Next, the Y direction detector 94 moves forward again and the position detector 98
The Y-direction position of 1 hub bolt 21 is determined in % with the detector.
The 20,000 detector 92 also moves forward, and the position detector 95 detects the position of the hub bolt 21 in two directions, and then based on the finally determined position data of the hub bolt 21 in the Y and Z directions, the position is detected again. The operation of the tire mounting unit 50 in the Y and Z directions is controlled, and the center of the tire mounting unit 50 in the Y and Z directions is set at the wheel huff H? Align the heart with the center of ffl.

When the phase alignment between the tire mounting unit 50 and the wheel hub H is completed as described above, the tire mounting unit 50
The hand unit 55, which receives and grips the tire W from the tire positioning device 20, rotates 9021 times together with the two-axis base 54, thereby rotating the tire W and the wheel gripped by the hand unit 55. The hub H is in a relative position with the hub H. Then, the tire mounting unit 50 first detects the hub bolt position f.
The hand unit 55 advances in the X direction by moving the
By working, the tire moves forward independently and attaches the gripped tire W to the hub bolt 21. Finally, by operating the air cylinder 78, the nut runner 73 moves forward, and as will be described later, the nut runner 73 is tightened with a nut previously inserted into the nut runner 73, thereby completing the installation of the tire W.

The nut feeding device 110 is a device for inserting and feeding pre-aligned nuts 70 into the nut runner 73, and its details are shown in FIGS. thing). This Nando feeding device 1ffi 11
0 runs in the Y direction on a guide rail 113 suspended horizontally on a frame 112 by the operation of an air cylinder 111, and aligns with the magazine shooter 114 circle δ.
There is a nut take-out unit 115 for taking out the nands one by one, and a transfer unit 116 for taking the nands from this nut take-out unit 115 and inserting and feeding them into the nands runner 73 on the hand unit 55 side. Togaranari and nut receiving unit 116
is due to the operation of air cylinder 117! :J7 Rem 112
It is designed to run in the Y direction on a guide rail 118 that is suspended horizontally.

As shown in FIGS. 14 and 15, the nut take-out unit 115 includes a nut holder 121 that is vertically attached to a slide base 119 and can be raised and lowered by the operation of an air cylinder 120, and an air cylinder 122.
an arm 124 for rotating and pushing open a gripper 123 at the terminal of the magazine shooter 114 by the operation of the arm 124;
The operation of the horizontally arranged air cylinder 125 (from the bushing rod 126 that moves back and forth from a to p, the arm 12
4 opens the grip bar 123, and the nuts N in the magazine shooter 114 are moved one by one into the nut holder 1.
As the bushing rod 126 moves forward, the nut holder N is inserted into the nut holding hole 126a of the transfer unit 116.

On the other hand, the nut holder transfer unit 1116 is an imbrata spray in which four nut holding holes 126a are formed.
127, this Indetutus Great 127
is intermittently rotated at a constant angle of 90 degrees by a rotary cylinder 128, and on the back side of the plate 127, an actuated δ slide bushing rod 130 is provided by an air cylinder 129 corresponding to each nut holding hole 126a. It is provided. And this nut holder is the passing unit 11
6 travels to a position corresponding to the nut take-out unit 115, receives a total of four nuts N in the nut holding hole 126a by working with the nut take-out unit 115, and returns to the predetermined waiting position. f) Drive to Z and wait. Then, when the tire unit 50 comes to receive the nut N at this standby position, the bushing rod 130 moves forward and pushes the nut N into the tip of the nut runner 73 to feed the nut gIi. become.

Next, although the tire discharging conveyor 140 was once felt to be gripped by the hand unit 55, the tire mounting unit 50 side failed or the nozzle bolt 21 and the bolt hole 9
Wheel hub Hτ+l due to phase difference, torque failure, etc.
This is for discharging tires that cannot be mounted and transporting them to the tire mounting station Sb, which is located after the tire mounting station Sl.The details are shown in Figures 2 and 3. As shown in FIG. 2, a slightly inclined conveyor 141 is provided at each of the tire mounting points (22) and 11 parts (50 gl, 11), and a main conveyor 142 which is also slightly inclined is provided to intersect with these sub-conveyors 141. Back Amp Station Sb
Then, when the tire W once gripped by the tire hand 74 cannot be installed on the @ stand, the hand unit 55 receives the abnormality signal and sets the fifth By turning and backing up at the ejection position 1 in the figure, the 7th tire W was placed on the 141st floor of the tire. Then, as the tire hand 74 opens the tire W, the tire W rolls on the sub-conveyor 141, falls over at the junction with the main conveyor 142, and remains on the main conveyor 142. It will fall to the 7th Quatsub Station S13 by one weight and be sent to 11M2.

10,000, Naso) :l71i Note 150 is the tire W7a: Discharge T/) which cannot be made into foil as shown above. As shown in Figure MGJ1, 414 tire alignment devices are installed in each of the 20 π111 cities. This Nando discharge device 15
0 has 4 in its main body 15117i as shown in FIG.
Nut receiver tlj
153, and after ejecting the tire, the NAND runner 73 is connected to the NAND ejecting device 150.Question 6. t,
By retracting the nut runner 73 while energizing the electromagnet 152, the nut (N) is attracted to the electric straight stone 152. Thereafter, the NAND receiver is ejected into the box 153 by demagnetizing the electromagnet 152.

Next, a series of operations of the automatic tire device i' (made up of one or more components) will be explained with reference to FIG. 17.

First, when the table 2 which is positioning the vehicle body f34 reaches the tire mounting station S and is positioned, the third
Figures and Figures 5 As the lift lid 6 rises, it pushes up the bus suspension system and restrains the wheel lift H at a constant height of 8. At this time, the ) rod 7 of the tire mounting unit 50
The drive unit 55 is in the left turning position in FIG. 3, and has received and gripped the tire W found for that type from the tire phasing device 20 in advance, so that the front position detection device 80 is the wheel hub. ■It is in I.

Then, the tire mounting unit 50 moves forward in the X direction, and the hub bolt position i distance detection devices B and 80 detect the V hub bolt 21.
position detection, toe-in, camber detection, etc.
Based on the detected data, the tire mounting unit 50 is aligned with the wheel baldness H (11th
On the other hand, in parallel with the positioning of the tire mounting unit 50, the nut feeding device 110il'11j is transferring nuts in preparation for the next tire.
After receiving the nut N, the transfer unit 116 of the nut holder is waiting at a predetermined position (the nut for fixing the tire currently held by the hand unit 55 has already been inserted into the nut runner 73 yen). ). Further, on the tire phase adjustment device α20 side, tire position adjustment work is also in progress in preparation for the next tire installation.

Subsequently, when the alignment of the tire mounting unit 50 with respect to the wheel hub H is completed, the tire mounting unit 50 is once retreated in the X direction, and the hand unit 55 is rotated 90 degrees to the right in FIG. The state is shown by the solid line. As a result, the tire W and the wheel hub I (held by the hand unit 55) are in a relative position for the first time.

The tire mounting unit 50 moves forward in the X direction again by touching the X-axis base 52, and the hand unit 5
5 moves forward independently by operating the air cylinder 77, so that the hub pole (2) and the bolt hole 9 are aligned with -8, and the tire W is mounted. After that, by further operating the air cylinder 78, the nut runner 73 is
moves forward and tightens N (arrow), and at the same time its torque is checked.

When the installation of the tire W is completed in this way, the tire hand 74 opens and the hand unit 55 and nut runner 73 move backward, and the tire mounting unit 50 also moves backward in the X direction. After the nand runner 73 receives the next four nara (N) from the handing unit 116, the hand unit 5
5 is 901! l: Turn and fit the tire phase alignment system
20 and will go to pick up the next tire W.

Here, if it becomes impossible to mount a tire for some reason as described above, the corresponding tire mounting unit 50 retreats at the retreat limit position trench and ejects the tire W it is holding onto the sub-conveyor 141. With that, Nala)
N is discharged by a nut discharge device 150, whereby the tires W which were not mounted at the tire mounting station SI are sent to the subsequent batter up stage Sb by the main compare 142. At this time, (at pick-up station Sb, the occurrence of uninstalled tires and the cause of the problem can be clearly displayed on a display device not shown in the figure). Wait for the single unit Bi to arrive, and then manually install the tire W using the NAND runner 8.

If tire mounting becomes impossible due to an abnormality on the tire mounting unit 50 side and it takes a long time to recover, the tire phasing device 20 of the empty tire mounting station S1 of the tire conveyor 10 should be The tires W are not loaded, and the tires W are transported to the end of the tire transport conveyor 10 and directly sent to the grasshopper up station Sb, where they are temporarily manually removed by the worker at the grasshopper up station Sb. Tire installation work will be carried out at

In addition, the hub bolt mentioned above! The hanging device does not need to be attached to one side of the )-nd unit, and may be provided separately.

As described above, the hub bolt position detection device C can accurately detect the hub bolt position u''-3N.

[Brief explanation of drawings]

Fig. 1 is an explanatory plan view schematically showing the entire device of the present invention, Fig. 2 is an explanatory front view of Fig. 1, Fig. 3 is a flat ifu view of the tire mounting unit, and Fig. 4 is a front view of the third body. Figure 5 is a side view of Figure 3, Figure 6 (A) is a cross-sectional explanatory diagram showing details of the main parts of the tire conveyor, and Figure 6 (B) is the same figure (A).
Figure 7 is a side explanatory view of the tire installation (details of
8 is a front view showing details of the wheel hub, FIG. 9 is a cross-sectional view showing details of the tire phasing device, and FIG. 10 is a cross-sectional view showing details of the tire mounting unit. Fig. 11 is an explanatory view on the r side showing details of the hub bolt position detection device, Fig. 12 is a flowchart showing the operation of the device shown in Fig. 11, Fig. 13 is an overall explanatory view of the Nando feeding device, Figure 14 is f4z 1 in Figure 13
Explanatory diagram of the III plane, Fig. 15 shows τI11 of the main part of Fig. 14.
FIG. 16 is an explanatory diagram showing details of the Nando discharge device, and FIG. 17 is a timing chart for explaining the operation of the entire device 1 of the present invention. W...Tire, B...Car body, H...Wheel hub, 1...Car body forging line, 10...Tire transport conveyor, 15...Tire input 1>3P 4+? ,2
0...Tire position 4th alignment device if, 21...Hub bolt, 50...Tire mounting unit), 51...Base, 52...X-axis base, 53...Yit'll
Base, 54...Z Q'+h base, 55... Hand unit, 63... γII-III base, 73
... Natsu Runner, 74... Tire Hand. 80...Hub bolt position detection device IHTS 81.
...Base plate, 88...2-way standard 11i1J plate (hub bolt regulation plate), 92...2-way rotation detector, 94
...Y direction detector, 95...Position detector (Z direction)
, 98...Position detector (Y direction)%'99A, 99B
, 99C... tilt detector, l0LA, l0III, l
0IC...position detector, N...nut. Figure 7, W "---Ichirere Figure 8 Figure 12

Claims (1)

[Claims] (1) A tire mounting unit is installed beside the vehicle body transport line, and the transported tires are delivered to the tire mounting unit by the appropriate transport means, and the tires are transferred to a single 11 tl unit.
This is a hub bolt position detection device used in a device that is automatically attached to a wheel hub, and the hub bolt position detection device moves up and down with respect to the base grate and the pace plate, thereby detecting the position on the wheel top surface. Hub bolt position W7i: The hub bolt regulating plate that is corrected and regulated and held at the one foot position, the 20,000 dome detector that contacts the hub bolt that is held in this position, and the liquid level of this Z direction detector to determine the hub bolt's position. A position detector that detects the vertical position a (!-b):
/7%) from a plurality of inclination detectors that are in contact with at least three points on the surface, and a position detector that detects the toe-in and camber of the wheel baldness based on the displacement of the plurality of 1LJlf u detectors. A hub bolt position detection device used in an automatic tire mounting device characterized by a 3 fL rc.