JPH055471Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a balance weight mounting device that automatically attaches a balance weight to a vehicle wheel, and in particular, supplies various types of balance weights used for the attachment. Regarding improvements to the mechanism.

(Prior Art) Conventionally, as a balance weight mounting device for this type of vehicle wheel, for example, Japanese Patent Application Laid-Open No. 61-33301
As disclosed in the above publication, a wheel balancer is used to measure the amount of wheel unbalance and its position in advance, and a predetermined amount of balance weight is applied to each of the front and back surfaces of the wheel based on the unbalance information from the wheel balancer. Devices that are mounted in a predetermined position are known.

In such a balance weight attachment device, the various types of balance weights used for attachment are normally supplied one after another by a cartridge type supply device or a parts feeder. Here, the cartridge-type feeding device sequentially pushes out and supplies balance weights stacked in a cartridge, starting from the lowest one, and the parts feeder applies an excitation force to the balance weights stored in the parts feeder main body. The data are sequentially supplied via the computer.

(Problem to be solved by the invention) However, in the case of the above-mentioned cartridge type feeding device, the number of balance weights that can be fed at one time is considerably smaller than that in the case of a parts feeder. There was a problem that the cartridge had to be replaced frequently, resulting in poor workability. In addition, in the case of the above parts feeder, since one parts feeder is expensive, if all balance weights were equipped with this part feeder, the equipment cost would be extremely high, and maintenance would also be troublesome.

On the other hand, the above-mentioned publication (Japanese Unexamined Patent Publication No. 61-33301)
It has been proposed that a long belt-shaped weight base material be cut to form a balance weight commensurate with the amount of imbalance, and that the balance weight be attached to a wheel via a clip. In this case, although it is not necessary to supply various types of balance weights individually, there is a problem that the appearance is poor because one type of clip is used for all the balance weights. In other words, the clip is made as large as possible in order to be able to securely attach a large balance weight to the wheel, but even with this large clip, if a small balance weight is attached to the wheel, it will look very bad. It becomes.

The present invention has been developed in view of these points, and its purpose is to use a cartridge-type supply device and a parts feeder in combination as appropriate when supplying various types of balance weights that are integrated with clips. This makes it possible to improve workability and reduce equipment costs.

(Means for solving the problem) In order to achieve the above object, the solution of the present invention applies a predetermined amount of balance weight to each of the front and back surfaces of the wheel based on unbalance information measured by a wheel balancer. The balance weight mounting device for a vehicle wheel to be mounted at a certain position has the following configuration.

That is, a supply means for supplying various balance weights is provided. The supply means includes a parts feeder that supplies balance weights that are frequently supplied, and a cartridge type supply device that supplies balance weights that are supplied less frequently.

(Function) With the above configuration, in the present invention, the supply means for supplying various types of balance weights is appropriately combined with a parts feeder and a cartridge type supply device according to the supply frequency of balance weights, so that an expensive parts feeder can be used. In addition, in a cartridge-type supply device that supplies balance weights that are infrequently supplied, the number of cartridge replacements can be reduced.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 and 2 show the overall configuration of a vehicle wheel balance weight mounting device according to an embodiment of the present invention, where _S1 is a positioning station for positioning the wheel H, and _S2 is a conventionally known wheel balancer. (not shown) is a balance measurement station that measures the unbalance amount and its position of the wheel H, and _S3 applies a predetermined amount of balance weight to each of the front and back surfaces of the wheel H based on the unbalance information from the wheel balancer. This is a weight mounting station that can be attached to a certain position.
The three stations S ₁ to S ₃ are located in a row at equal intervals. The balance weight is made by Tokkai Sho.
As shown in Japanese Patent No. 61-33301, the wheel is composed of a clip and a weight attached to the tip of the rim of the wheel.

In addition, 1 is a roller conveyor disposed across the three stations _S1 to _S3 , and 2 is a roller conveyor for positioning the wheel H on the roller conveyor ₁ from the station S1 to the balancer measurement station _S2 , and also for balance measurement. This is a transport device that sequentially transports weights from station _S2 to weight installation station _S3 . The conveying device 2 includes a pair of shuttles 3, 3 provided movably along the roller conveyor 1 on both sides of the roller conveyor 1, and four clampers 4, 4, . . . provided on the shuttle 3, respectively. ... and an actuator 5 consisting of a cylinder that moves the shuttles 3, 3 along the roller conveyor 1 by a predetermined stroke (distance between the centers of two adjacent stations), and a set of four clampers 4, 4, ... …
While gripping the wheel H, move the shuttle 3,
3 moves downward to convey the wheel H. 6 is a lifter that moves the roller conveyor 1 and shuttle 3 up and down.

The specific structure of the weight mounting station _S3 of the balance weight mounting device is shown in FIGS. 3 to 5. That is, above the roller conveyor 1 at the weight attachment station _S3 , there is a supply means 20 for supplying various types of balance weights, and a supply means 20 that receives predetermined balance weights from the supply means 20, and the weight attachment station _S3 on the roller conveyor 1 receives predetermined balance weights from the supply means 20. a pair of left and right delivery means 30, 30 for transporting the balance weight to the pedestals 11, 11 provided near the wheel H located at the wheel H; and a mounting means 40 for attaching the balance weight on the pedestal 11 to a predetermined position on the surface of the wheel H. is provided.

As shown in FIGS. 6 to 8, the supply means 20 includes a balance weight W which is frequently supplied.
Parts feeders 21, 21, ... that supply (normally small weights) and balance weights W (large weights) that are fed infrequently
Cartridge type feeding device 22, 22,
It is composed of... parts feeder 2
1 is one in which an excitation force is applied from a parts feeder main body 23 that stores a very large number (200 to 300) of balance weights, and the balance weights are sequentially supplied via a shooter 24. The cartridge type supply device 22 stores a large number (about 30) of balance weights stacked in a cartridge 25, and supplies the lowest balance weight by pushing it out from the cartridge 25 using an extrusion cylinder 26. Each weight take-out position of the parts feeder 21 and the cartridge type supply device 22 (the weight take-out portion 20 of the supply means 20
a) are arranged substantially linearly on both the left and right sides of the pedestal 12.

Further, the delivery means 30 includes a delivery hand 32 having three holding parts 31, 31, 31 made of electromagnets that attract and hold a balance weight at the tip thereof. The delivery hand 32 is driven by an electric motor 33 via a chain mechanism 34 and is provided to run on a guide rail 35 . The guide rail 35 is located approximately at the center between the weight transfer position of the receiving table 11 and the weight take-out part 20a of the supply means 20, and is arranged to extend parallel to the center line of the weight take-out part 20a of the supply means 20. ing. Further, the delivery hand 32 is configured to horizontally rotate by 180 degrees around its base end (end on the guide rail 35 side) while sandwiching the guide rail 35 by the operation of a rotary actuator 36. Furthermore, the delivery hand 32
The three holding parts 31, 31, 31 are provided at the tip of the steel wheel and the aluminum one.
This is because the balance weights corresponding to the piece wheel and the aluminum two-piece wheel each require a unique holding part 31.

Furthermore, the mounting means 40 includes a cylinder 41,
41 is driven by a synchronous link mechanism 42, 42 and moves up and down along guide rails 43, 43, and a lifting body 44 is supported at the lower part of the lifting body 44 via a bearing 45, and is driven by the operation of an electric motor 46. A rotating turntable 47 and three driving hands 49, 4 supported in a suspended state by the turntable 47 via single-axis tables 48, 48, 48, respectively.
9,49. The three uniaxial tables 48, 48, 48 extend in the radial direction from the rotation center side of the rotary disk 47 and are disposed at intervals of 120° from each other in the circumferential direction. The driving hand 49 attached to each of the single-axis tables 48 moves between the cradle 11 above the roller conveyor 1 and the weight mounting position on the surface of the wheel H on the roller conveyor 1 along the single-axis table 48. possible. Furthermore, a wheel fixing member 50 is provided at the center of rotation of the rotary disk 47 to abut the center of the wheel H on the roller conveyor 1 and hold the wheel H fixedly when the elevating body 44 is lowered.

The driving hand 49 is shown in FIGS. 9 and 10.
As shown in detail in the figure, a holding part 51 made of an electromagnet that attracts and holds the balance weight W, a rotary actuator 53 that rotates the holding part 51 by 90 degrees around the axis via a belt 52, etc. A cylinder 54 that causes the holding part 51 to protrude downward (toward the wheel H on the roller conveyor 1) when driving the weight W, and a cylinder 54 that makes the holding part 51 project downward (to the side of the wheel H on the roller conveyor 1) when a reaction force of a predetermined magnitude or more is applied to the holding part 51 when driving the balance weight W. A copying spring 55 provided to retractably support the holding portion 51 and a balance weight W.
It has a pair of presser metal fittings 56, 56 that press down the wheel H when driving the wheel H. Furthermore, the driving hand 4
The reason why three 9s are provided on the rotary disk 47 is the delivery means 3.
At 0, the holding part 3 is attached to the tip of the delivery hand 32.
This is for the same reason as why three numbers 1 were provided.

On the other hand, under the roller conveyor 1 at the weight attachment station S ₃ , as well as above the roller conveyor 1, there is a supply means 60 for supplying various types of balance weights, and a predetermined balance weight is received from the supply means 60, and a roller A pair of left and right transfer means 70, 70 transport the balance weights on the pedestals 13 to the pedestals 13, 13 provided near the wheels H located at the weight mounting station _S3 on the conveyor 1, and transfer the balance weights on the pedestals 13 to the wheels H. Attachment means 80 is provided to be attached at a predetermined position on the back surface of. The supply means 60 and the delivery means 70 have the same configuration as the supply means 20 and the delivery means 30 above the roller conveyor 1, respectively, and the delivery hand 71 of the delivery means 70 is similar to the delivery hand 32 of the delivery means 30. take action. In addition, in both the upper and lower supply means 20, 60,
One parts feeder main body 23 is used for parts feeders 21 that supply balance weights of the same type.

The mounting means 80 also includes an elevating body 83 that moves up and down along a guide rail 82 by the operation of a cylinder 81, and a bearing 8 mounted on the upper part of the elevating body 83.
a rotary disk 85 that is supported via
Three driving hands 87, 87, 8 are attached to the top via single-axis tables 86, 86, 86, respectively.
7. The above three single-axis tables 8
6, 86, and 86 extend in the radial direction from the rotation center side of the rotary disk 85 and are arranged at intervals of 120° from each other in the circumferential direction. The driving hand 87 attached to each single-axis table 86 is connected to the single-axis table 86.
7 between the receiving table 13 on the rotary disk 85 and the weight mounting position on the back surface of the wheel H on the roller conveyor 1.

The driving hand 87 is shown in FIGS.
As shown in detail in Figure 2, there is a holder 88 made of an electromagnet that attracts and holds the balance weight, and a rotary actuator that rotates the holder 88 by 90 degrees around its axis and swings the hand body 180 degrees up and down. A reaction force of a predetermined magnitude or more was applied to the ator 89, the cylinder 90 that causes the holding part 88 to protrude upward when driving the balance weight with the holding part 88 facing upward, and the holding part 88 when driving the balance weight. It also has a copying spring 91 provided to support the holding portion 88 in a retractable manner.
When attaching the balance weight to the back surface of the wheel H using this driving hand 87, the balance weight is aligned in advance at the balance measuring station _S2 so that the weight attaching position on the back surface of the wheel H is always at a constant position at the weight attaching station _S3 . The wheel H is conveyed to the weight attachment station _S3 , and in this state, the holding part 88 of the driving hand 87 holds the balance weight at a predetermined position from the gap a between the rollers of the roller conveyor 1 against the back surface of the wheel H on the roller conveyor 1. It is designed to be installed by driving it into the mounting position.

Next, the operation of the above embodiment will be explained with reference to the flowchart shown in FIG.

First, at the positioning station _S1 , the wheel H on the roller conveyor 1 is positioned.
After confirming that this positioning has been completed, the wheel H is conveyed on the roller conveyor 1 to the balance measuring station _S2 . At the balance measuring station _S2 , the wheel balancer rotates the wheel H and measures the amount of unbalance of the wheel H and its position, thereby recognizing the designated weight and the weight mounting position. Then, after once stopping the rotation of the wheel H, the wheel H is moved (rotated) so that the weight attachment position on the back surface of the wheel H comes to a predetermined designated position, and it is confirmed whether this movement is completed.

On the other hand, in the conveying device 2, the roller conveyor 1
Transfer the upper wheel H from the positioning station S ₁ to the balance measuring station S ₂ and from the balance measuring station S ₂ to the weight mounting station.
When sequentially conveying to S ₃ , first, the clamper 4 closes and grips the wheel H on the roller conveyor 1 when the lifter 6 is in the lowered state (that is, the roller conveyor 1 and the shuttle 3 are in a lower position). . Subsequently, after the lifter 6 rises, the shuttle 3
flows down and conveys the wheel H on the roller conveyor 1 to the next station. After that, lifter 6
is lowered, the clamper 4 is opened and the grip on the wheel H is released, and then the shuttle 3 returns to its original position. By repeating the above operations, the wheels H are sequentially conveyed to the downstream station. here,
Wheel H balances on roller conveyor 1 from measuring station S ₂ to weight mounting station S ₃
When conveyed to the balance measurement station S ₂ , the weight attachment position on the back surface of the wheel H is aligned to a predetermined designated position in advance, and the wheel H is transferred to the weight attachment station S ₃ while being held by the clamper 4 . Since it is being transported, the wheel H is attached to the weight mounting station S ₃
The weight attachment position on the back side is always located at a constant position corresponding to the gap a between the rollers of the roller conveyor 1.

Then, before the wheel H is transported to the weight mounting station _S3 by the transport position 2, at the weight mounting station _S3 ,
The supply means 20 and 60 are provided by the delivery means 30 and 70 located on both the upper and lower sides of the roller conveyor 1, respectively.
from the weight take-out parts 20a, 60a of the cradle 1.
A predetermined balance weight is transferred to 1 and 13. That is, in the delivery means 30 above the roller conveyor 1, when a designated weight is instructed from the wheel balancer, the delivery hand 32, which is waiting opposite the weight take-out part 20a of the supply means 20, first moves to the weight take-out part 20a.
The machine receives the specified balance weight W instructed by the user, then moves to the pedestal 11 side, drops the balance weight W into the pedestal 11, and then returns to the original position. Furthermore, in the delivery means 70 below the roller conveyor 1, the delivery hand 71 operates in the same manner.

On the other hand, in the mounting means 40 above the roller conveyor 1, when information that the balance weight W has been transferred to the pedestal 11 is received, the driving hand 49 first operates the rotary disk 47 and the single-axis table 48. The balance weight W is moved to the cradle 11 side by the holder 51, and the balance weight W is received from the cradle 11 by the holding part 51. Thereafter, the holding part 51 holding the balance weight W performs a retracting operation by a predetermined stroke (approximately 20 mm) by the operation of the cylinder 54. At this stage, the wheels H are
is transported to the weight installation station S ₃ by
Moreover, the lifter 6 of the conveying device 2 is in a lowered state (that is, the roller conveyor 1 supporting the wheels H is located at a lower position).

Subsequently, the driving hand 49 moves the rotary disk 47 and
By the operation of the axis table 48, the weight mounting position on the surface of the wheel H located at the weight mounting station _S3 is moved upward. Thereafter, the elevating body 44 is lowered, and the wheel H on the roller conveyor 1 is fixed by the wheel fixing member 50, and the driving hand 49 is brought close to the wheel H. After confirming that the elevating body 83 in the mounting means 80 below the roller conveyor 1 (described later) has completed its ascent, the holding part 51 holding the balance weight W is moved downward by the operation of the cylinder 54 in the driving hand 49. Attach the balance weight W by protruding it a predetermined stroke and driving it into a predetermined position on the surface of the wheel H. Thereafter, the elevating body 44 rises and returns to the original position.

Also, in the mounting means 80 below the roller conveyor 1, when information that the balance weight W has been transferred to the receiving table 13 is received, the driving hand 87 moves to the pedestal 13 side and receives the balance weight W from the pedestal 13, and the holding part 88 that holds the balance weight W performs a retracting operation. Subsequently, the driving hand 87 is moved to the holding portion 88 by the operation of the rotary actuator 89.
It swings up and rotates so that it faces upward, and moves downward to the weight mounting position (a predetermined position corresponding to the gap a between the rollers of the roller conveyor ₁ ) on the back surface of the wheel H located at the weight mounting station S3. Then, the shuttle 3 of the conveying device 2
After confirming that the weight is not on the weight mounting station S ₃ , that is, that it has returned to its home position,
The elevating body 83 rises and the driving hand 87 approaches the roller conveyor 1. In this state, the holding portion 88 of the driving hand 87 projects upward by a predetermined stroke from the gap a between the rollers of the roller conveyor 1 by the operation of the cylinder 90, and the balance weight W is driven into a predetermined position on the back surface of the wheel H to be attached. Thereafter, the elevating body 83 descends and returns to the original position, and the driving hand 87 swings down and rotates so that the holding portion 88 faces downward.

Then, at the weight attachment station _S3 , the wheel H, on which a predetermined amount of balance weights are attached to predetermined positions on both the front and back surfaces, is transferred from the balance measuring station S2 to the wheel H, on which the balance weights are next attached, in the transport device ₂ . When the lifter 6 rises to transport the weight to the mounting station S ₃ and the shuttle 3 flows down, it is carried downstream from the weight mounting station S ₃ so as to be pushed by the wheel H gripped by the clamper 4 .

By repeating the above operations, the wheels H are sequentially attached to the weight mounting station _S3 .
A predetermined amount of balance weights W are attached to each of the front and back surfaces of the wheel H, and various types of balance weights W used for this attachment are provided by two upper and lower supply means 2 provided correspondingly to both the front and back surfaces of the wheel H.
Supplied by 0.60. In this case, the respective supply means 20, 60 are parts feeders 21, 2 that supply the balance weights W that are frequently supplied.
1,... and the balance weight W that is supplied infrequently
Cartridge type feeding device 22, 22,
..., the number of expensive parts feeders 21 required can be reduced compared to the case where all balance weights are supplied by individual parts feeders 21, and equipment costs can be reduced. , the complicated maintenance of these parts feeders 21 can be simplified due to the small number of parts feeders 21. Further, since the cartridge type supply device 22 supplies the balance weight W which is supplied infrequently, the number of times the cartridge 25 needs to be replaced is reduced, and workability can be improved.

In addition, in the above embodiment, the weight mounting position on the back side of the wheel H is always set at a constant position in the weight mounting station _S3 , but instead of this, the weight mounting position on the front side of the wheel H is always set at a constant position. In this case, the means for supporting the center portion of the wheel H so that the means for supporting the wheel H from the back side does not interfere with the attachment means 80 when the weight is attached is provided. All you have to do is set it up.

(Effects of the invention) As described above, according to the vehicle wheel balance weight mounting device of the present invention, the supply means for supplying various types of balance weights are connected to a parts feeder that supplies balance weights with a high frequency of supply, and a part feeder that supplies balance weights with a high frequency of supply. By being configured with a cartridge-type feeding device that supplies a low balance weight, the number of parts feeders required can be reduced, reducing equipment costs and simplifying maintenance. It is possible to improve work efficiency by reducing the number of replacements.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a plan view showing the overall configuration of the balance weight mounting device, Fig. 2 is a side view of the same, and Figs. 3 to 5 show the weight of the balance weight mounting device. The specific structure of the mounting station is shown, with FIG. 3 being a front view, FIG. 4 being a side view, and FIG. 5 being a partially cutaway plan view. FIG. 6 is an enlarged view of the supply means arrangement portion in FIG. 5, and FIGS. 7 and 8 are side views taken along lines - and - in FIG. 6, respectively. FIG. 9 is a front view of the driving hand for the wheel surface, FIG. 10 is a side view thereof, FIG. 11 is a front view of the driving hand for the back surface of the wheel, and FIG. 12 is a side view thereof. FIG. 13 is a flow chart for explaining the operation of the balance weight attachment device. 20... Supply means, 21... Parts feeder,
22... Cartridge type supply device.

Claims (1)

[Scope of utility model registration request] In a vehicle wheel balance weight installation device that installs a predetermined amount of balance weights at predetermined positions on both the front and back surfaces of a wheel based on unbalance information measured by a wheel balancer, a supply means for supplying various types of balance weights is provided. A balance weight attachment for a vehicle wheel, characterized in that the supply means is composed of a parts feeder that supplies balance weights that are frequently supplied, and a cartridge type supply device that supplies balance weights that are supplied infrequently. Device.