JPH01155234A - Method and apparatus for automatically stepping tire rim in uniformity machine - Google Patents

Abstract

PURPOSE:To automatically replace a rim without using labor, by transferring a pair of upper and lower tire rims for detachment from a rim stock apparatus to a rim replacing carriage and moving said carriage to mount the tire rims to upper and lower main shafts so as to engage the same with said shafts. CONSTITUTION:A rim replacing carriage 100 is moved to a rim stock apparatus 50 to transfer a pair of upper and lower tire rims W1, W2 for detachment to the apparatus 50 and a replacing rim stock is transferred to a replacing carriage 100. Next, the carriage 100 is revolved to be moved in a horizontal direction to be transferred to the center positions of the upper and lower main shafts 14, 15 of a uniformity machine and the tire rims are engaged with the upper main shafts 14 and an impact trench 24 is automatically operated to operate the operation screw of a hydraulic chuck 13 to respectively bring the tire rims W1, W2 into engagement with the upper and lower main shafts 14, 15. Next, a tire to be inspected is sent to the upper and lower main shafts 14, 15 at the center positions thereof in such a state that the lower main shaft 15 is allowed to fall and, in this state, the lower main shaft 15 is raised to mount the upper and lower tire rims W1, W2 to the bead part of a tire.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to the use of tires and
It relates to an automatic rim change method and device, and more specifically, an automatic tire and rim change that automatically changes tires and rims between the main shaft of a uniformity machine and a rim stock device in a short time. The present invention relates to a method and an apparatus thereof.

[Prior art]

Conventionally, tire uniformity has been measured by mounting tires on the upper and lower main shafts of a tire uniformity machine via tire rims.

By the way, when changing the tire and rim in the tire uniformity machine as described above, for example, as shown in FIGS. Upper and lower tire rims 4a and 4b are manually transported from a rim stock device (not shown) to a lower main shaft 3 that can be raised and lowered along the axis X-X of the main shaft. - Figure 16 after fitting and mounting the rim 4a.

By manually operating the hydraulic chuck operating screw 5 such as a hexagonal screw shown in FIGS. 17, 19, and 20, the shell 6 is bulged by the hydraulic pressure Q via the piston 7.
Performing rim chuck. Further, the lower tire rim 4b is also transported and fitted onto the lower main shaft 3.

However, such conventional tire/rim changeover work involves transporting a rim weighing approximately 6.0 kg, manual spindle operation, tire removal/removal work to fix the rim spindle,
There is work such as operating the operating screws of the hydraulic chuck part, and most of the work is done manually, which is not only hard work but also dangerous.
Furthermore, it is difficult to save labor because it requires at least 2 Å of manpower, and it also takes about 20 to 30 minutes to work, which makes it difficult to work efficiently. Ta.

[Purpose of the invention]

This invention was devised by focusing on such conventional problems, and its purpose is to be able to automatically change the tire/rim stage without human intervention, and to do so in a short time. An object of the present invention is to provide an automatic tire/rim changeover method and device that can perform the changeover work quickly and significantly improve work efficiency.

[Structure of the invention]

In order to achieve the above object, the present invention provides an impact wrench device that includes an upper main shaft having a hydraulic chuck section on a frame, and a lower main shaft that can be raised and lowered along the axis of the main shaft, and that operates the hydraulic chuck section on the frame. is provided between the rim stock device disposed on the side of the uniformity machine and the upper and lower spindles for transporting the tire rim removed from the rim stock device to the center position of the upper and lower spindles. The present invention is constructed by providing a rim changing carriage device which is horizontally movable and rotatable, and the gist is that the automatic tire and rim changing method is carried out by the following method.

(a) The rim exchange carriage is moved to the rim stock device, and the pair of upper and lower tire rims for removal placed on the rim exchange carriage are transferred to the rim stock device. The process of transferring a pair of upper and lower replacement rim stocks stored in the stock device to the rim replacement carriage.

The step of rotating the rim exchange carriage and moving it horizontally to the center position of the upper and lower spindles of the uniformity machine.

The step of raising the rim exchange carriage in the states of (c) and (b) and fitting the tire rim located at the upper part to the upper main shaft.

(d) (Step of chucking the tire/rim onto the upper main shaft by automatically operating the impact wrench device in the state of C1 to operate the operating screw of the hydraulic chuck section.

Steps of raising the lower main shaft in the states of (e) and (d) and fitting and mounting the lower main shaft onto the tire rim located below.

(f) With the lower main shaft lowered to a predetermined position, feed the tire for inspection to the center position of the upper and lower main shafts, and in this state raise the lower main shaft to fit the upper and lower tires and rims onto the bead of the tire. The process of installing it.

[Embodiments of the invention]

The present invention will be described in detail below based on the accompanying drawings.

Fig. 1 is a front view of the automatic tire/rim changer in a uniformity machine, Fig. 2 is a side view of Fig. 1, and Fig. 3 is a plan view of Fig. 1. The automatic gear change device consists of the uniformity machine body lO and the rim.
Stock device 50 and uniformity machine main body 10
and a rim stock device 50, a rim changing carriage device 10 that automatically changes the setup of a tire rim W.
0, and a control device (not shown) that automatically controls all of these devices.

Next, the configuration of each of the above devices will be specifically explained.

First, a uniformity machine main body 10 for measuring the uniformity of a tire T has a frame 11 sandwiching a tire T conveying means 12 (1! conveyor), and an upper main shaft 14 equipped with a hydraulic chuck section 13 at the upper and lower parts thereof. and a lower main shaft 15 that can be raised and lowered are arranged vertically, and the upper main shaft 14
is rotatably driven by a drive motor 17 (DC motor) via a rotation drive mechanism 16 installed on the upper frame lla.

The rotation drive mechanism 16 is configured by a drive belt 21 being looped around a booby IJ 18 provided at the upper end of the upper main shaft 14 and a pulley 20 provided on the output shaft 19 of the drive motor 17. The rotational driving force from
4.

This upper main shaft 14 uses a hydraulic chuck part 13 similar to the one explained in the conventional example shown in FIGS. has been done.

A chuck operating screw (not shown) of the hydraulic chuck section 13 is automatically operated by an impact wrench device 24 provided on the frame 11, which will be described later, and a piston (not shown)
Adjust the oil pressure by operating the shell ring 2.
It is designed to operate 2.

Further, the lower main shaft 15 is installed below the axis of the upper main shaft 14 and is configured to be raised and lowered along the axis by a lifting cylinder 25.

The impact wrench device 24 includes the upper frame 11
It is supported so as to be slidable along a guide rod 27 vertically disposed from above, and movement in the vertical direction is performed by a vertical cylinder 28, and movement in the horizontal direction is performed by a left and right cylinder 29.

As described above, at the tips of the left and right cylinders 29, there is an operating rod 30 for operating the chuck operating screw 23.
is provided.

All operations of the impact wrench device 24 are performed by commands from a control device (not shown).

The frame 11 of the uniformity machine main body 10
A tire carry-in conveyor 31 connected to the conveyance means 12 is disposed on one side, and a tire guide device 32 and a tire centering mechanism 33 are installed on this tire carry-in conveyor 31, and a tire guide device 32 and a tire centering mechanism 33 are installed on the tire carry-in conveyor 31. The T is fed into the conveying means 12 in a centered state.

Furthermore, a marking device 40 for marking the side surface of the tire T to be measured is provided on the other side of the frame 11.

Next, the rim stock device 50 is installed near the uniformity machine main body 10, as shown in FIGS. Multiple sprockets 52a on the wall
, 52b.

53a, 53b (four on each side, two in pairs), and a pair of endless chains 54a.

54b, 55a, 55b are arranged in two sets with different phases and different widths, and this endless chain 54
A, 54b, 55a, 55b, as shown in FIGS. 5 to 7, a plurality of rim supports 56 are attached at predetermined intervals. As shown in FIG. 5, this rim support is connected to narrow endless chains 54a, 54b at the leading end of the frame 56, and horizontally attached to wide endless chains 55a, 55b at the rear end. There is.

One of the sprockets 52b and 53b disposed on the lower side of the frame 51 is connected to the drive shaft 58 of the drive motor 57.
connected to each endless chain 54 a, 54
b, 55a, 55b always rotate synchronously in a fixed direction (clockwise in this embodiment), and the endless chains 54a, 54b, 55a, 55b
The plurality of rim supports attached to the frame 56 are configured to rotate while maintaining the horizontal state.

Next, the rim exchange carriage device 100 is operated as shown in FIGS.
As shown in FIG. 3, a guide rail 110 as shown in FIGS. 8 and 9 is attached to an example part of the upper frame 11 of the uniformity machine main body 10, and a carriage frame 111 is attached to this guide rail 110. It is slidably attached via a bearing.

The carriage frame 111 includes an upper frame ll
It is configured to move along a guide rail 110 via an air cylinder 112 attached to one end of a.

Further, two parallel rails 112a and 112b are laid on the carriage frame 111 in the longitudinal direction, and the carriage head 113 is attached to these rails 112a and 112b.
A support plate 114 with an attached support plate 114 is slidably provided.

The support plate 114 is attached to the carriage frame 111.
The lift cylinder 115 attached to the side allows the lift to move up and down along the rails 112a and 112b.

The carriage head 1 is mounted on the support plate 114.
A high rotor 116 (drive motor) for rotating the high rotor 13 is installed, and a rotation drive shaft 119 is connected to an output shaft 117 of the high rotor 116 via a coupling 118.

A fork-shaped carriage body 121 is attached to the above-mentioned swing drive shaft 119 via a bracket 120, and a support plate 122 of the carriage body 121, which is formed in an angular cross-section, is attached to the support plate 122 as shown in FIG. As shown, a tire/rim W automatic alignment device 123 is provided.

The self-aligning bag 2123 is attached to the support plate 122.
A sliding mechanism 124 that elastically contracts in response to a load from above is disposed at several locations (three locations in this embodiment), and a tire rim W is fixed on this sliding mechanism 124. A rim fixing plate 125 is provided.

The sliding mechanism 124 allows a bolt 127 to be slidably inserted from below into a through hole 126 formed in the support plate 122, and the tip of the bolt 127 is connected to the rim fixing plate 126.
A spring 129 having a certain elastic force is inserted into the bolt 127 and inserted into the gap between the support plate 122 and the nut 128.

Therefore, the tire rim W placed on the rim fixing plate 125 is supported by the elastic force of the spring 129, and such springs 129 are arranged at several locations on the support plate 122. Because of this, it is possible to allow the tire/rim W to move in three dimensions.

That is, the distal end portion 14a of the upper main shaft 14 is formed in a tapered shape, and the insertion portion Wx of the upper tire/rim Wl is also formed in a tapered shape, so that the upper tire/rim W1
As the tip portion 14a of the upper main shaft 14 is inserted into the insertion portion Wx of the upper main shaft 14, the upper and lower tire/rims W1, W2 and the rim fixing plate 125 are moved through the sliding mechanism 124 to the axis 0-0 of the upper and lower tire/rims W1. The core of W2 will be automatically aligned.

Note that 130 is a carriage stopper attached to the carriage frame 111.

Further, in FIG. 11, Wl is an upper tire rim mounted on the upper main shaft 14, W2 is a lower tire rim mounted on the lower main shaft 15, and these upper and lower tires
The rims Wl and W2 are transported with a rim fixing spacer 131 interposed therebetween.

Furthermore, in Fig. 13, the left diagram of the center line 0-0 shows the state after the upper and lower tires and rims Wl and W2 are installed on the upper and lower main shafts 14°15, and the right diagram shows the state when they are installed. ing.

Next, the operating state of the rim stock device 50 and the tire stock device 50 will be explained.
The automatic step change method for the rim W is shown in Figs. 14(a) to 14().
This will be explained with reference to el and FIGS. 15(a) to 15(f).

First, the operating state of the rim stock device 50 will be explained with reference to FIG. 5 and FIGS. 14(a) to 14(e). Tires and rims W (upper and lower tires and rims W) mounted on
1, W2) and the tire/rim W (upper and lower tire/rim Wl, W2) mounted on the upper and lower main shafts 14-15 of the uniformity machine main body 10, the rim exchange carriage device 100 is used. is operated to move the uniformity machine main body 10 to the position of the vertical main shaft 14, 15.

Then, the upper and lower tires and rims W1. mounted on the upper and lower main shafts 14 and 15. A rim fixing spacer 131 is interposed between W2 to integrate the upper and lower tire rims Wl and W2,
In this state, the upper tire/rim W1 is released from the upper main shaft 14 by automatically operating the impact wrench device 24 attached to the upper main shaft 14 and operating the chuck operating screw of the hydraulic chuck part 13. W1
Lower tire/rim W via the rim fixing spacer 131
Place it on top of 2.

In this state, the upper and lower tire rims W1 and W2 are moved to the carriage body 121 of the rim exchange carriage device 100.
and air cylinder 112. Lifting cylinder 115. By sequentially operating the high rotor 116, etc.,
The carriage main body 121 is moved in the vertical and horizontal directions, and is also rotated and moved to a predetermined position of the rim stock device 50.

Then, as shown in FIGS. 14(a) and 14(b), the removed tire/rim Wa is placed on the rim holder of the rim stock device 50 on the stand 56, and the drive motor 57 is driven to create an endless chain. 54a, 54b, 55a, 5
5b in a predetermined direction and remove the tire/rim Wa.
The rim receiver on which is placed sends out the pedestal 56, while moving the stock tire rim wb to a position near the support plate 122 of the carriage body 121, as shown in FIG. 14(C). Then, at this position, the carriage body 1
21 in the horizontal direction, the rim holder transfers the stock tire rim wb placed on the pedestal 56 onto the support plate 122 of the carriage main body 121 (14th
Figure (d)). In this way, stock tires and rims wb
When the transfer operation of 112. is completed, the air cylinder 112. Lifting cylinder 115. The high rotor 116 and the like are sequentially operated to move the carriage body 121 vertically and horizontally, and also to rotate the upper and lower tires and rims W1 and W2 to the center position of the vertical main shaft 14.15. In this state, the upper and lower tires and rims Wl.

The upper tire rim W1 is fixed to the upper main shaft 14 by automatically aligning the W2 and attaching it to the upper main shaft 14, and by operating the chuck operating screw of the hydraulic chuck part 13, the lower tire rim W1 is fixed to the upper main shaft 14. The rim W2 is then attached.

The series of operations described above are the operating states of the rim stock device 50 and the rim exchange carriage device 100, and the operating states of the rim exchange carriage device 100 are shown in more detail in FIGS. It is figure (f).

Figure 15 (al to Figure 15 (fl) shows the operating state in which the upper and lower tire rims Wl and W2 are attached to the upper and lower main shafts 14°15, and a pair of upper and lower tires and rims W1 and W2 are mounted on the upper and lower main shafts 14°15. With the tires and rims Wl and W2 placed on the carriage head 113 of the carriage body 121, the air cylinder 112.the lifting cylinder 115.
The high rotor 116 etc. are operated and moved to a predetermined position (FIGS. 15(a) and (bl)).

From this state, operate the air cylinder 112 to move the tire/rim Wl to the center position of the vertical main shaft 14.15.
By moving the centers of W2 to match (FIG. 15(C)) and operating the lifting cylinder 115, the upper tire rim W1 is automatically aligned and attached to the upper main shaft 14 (FIG. 15(C)). (d)). In this state, raise the lower main shaft 15 and lower the tire/rim W2.
Insert the tire from below and attach the tire to the upper and lower main shafts 14°15.
The rims Wl and W2 are respectively attached (FIG. 15(e)).

Then, in this state, the upper tire/rim W1 is completely fixed to the upper main shaft 14 by automatically operating the impact wrench device 24 attached to the upper main shaft 14 and operating the chuck operating screw of the hydraulic chuck part 13. After this, lower the lower main shaft 15 and
Remove the rim fixing spacer 131 from between 2 (FIG. 15(f)).

In this way, when the installation work of the tires and rims Wl and W2 on the upper and lower main shafts 14.15 is completed, the centered measurement tires T are transferred from the tire carrying-in conveyor 31 shown in FIG. 1 to the center of the upper and lower main shafts 14.15. The tire T is transported to a position, the tire T is mounted on the tire rim Wl, W2, and the tire uniformity is measured by inflating the tire T.

Further, when changing the tire/rim Wl, W2, this can be easily done by performing the operation opposite to the above.

〔Effect of the invention〕

In this invention, since the tire/rim is automatically changed as described above, it is possible to automatically change the position of the tire/rim without human intervention as in the conventional case. This has the effect of making it possible to perform changeover work in a short time, thereby significantly improving work efficiency.

In addition, the upper main shaft has a hydraulic chuck part on the frame,
A lower main shaft that can be raised and lowered along the axis of this main shaft is provided,
An impact wrench device for operating a hydraulic chuck section is provided on the frame, and a tire removed from the rim stock device is placed between the rim stock device installed on the side of the uniformity machine and the vertical spindle. The structure is equipped with a rim exchange carriage device that can move vertically and horizontally to transfer the rim to the center position of the vertical spindle, and can rotate, so it can be easily manufactured without a particularly complicated mechanism, and the device can be easily manufactured. It is safe because everything can be done by a control device, and it also has the effect of allowing efficient work to be done without requiring a large space.

[Brief explanation of the drawing]

FIG. 1 is a front view of an automatic tire/rim changer in a uniformity machine embodying the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a plan view of FIG. 1. Fig. 4 is a plan view of the rim stock device, Fig. 5 is an explanatory diagram of the configuration of the endless chain of the rim stock device, Fig. 6 is a side view of the rim stock device, and Fig. 7 is a front view of the rim stock device. Figure 8 is a front view of the rim exchange carrierage device,
Figure 9 is a side view of Figure 8, Figure 10 is a plan view of Figure 8,
FIG. 11 is a front view of the automatic alignment device provided in the rim exchange carriage device, FIG. 12 is a plan view of FIG. 11, and FIG.
The figures are an enlarged cross-sectional view showing the state in which the upper and lower tires and rims are attached to the upper and lower main shafts, Fig. 14 (al to Fig. 14 (el) is an explanatory diagram showing the operating state of the rim stock device, and Fig. 15 (
al to Fig. 15(f) are explanatory diagrams showing the operating state of the rim exchange carriage device, and Figs. 16 and 17 are partial longitudinal sections showing the state in which the upper and lower tires and rims are mounted on the conventional upper and lower main shafts. A front view, FIG. 18 is a partially enlarged half-sectional view of the hydraulic chuck section provided on the conventional upper main shaft, FIG. 19 is a cross-sectional plan view of the hydraulic chuck section, and FIG. 20 is a half-sectional view of the hydraulic chuck section. be. DESCRIPTION OF SYMBOLS 10...Uniformity machine body, 11...Frame, 13...Hydraulic chuck, 14...Upper spindle, 15...Lower spindle, 24...Impact resochi device, 50...Rim・Stock device, 100... Rim exchange carriage device, Wl... Upper tire rim, W
2...Lower tire/rim. Agent Patent Attorney Nobuo Ogawa −

Claims (1)

[Claims] 1. An automatic tire/rim changing method in a uniformity machine, which is characterized by comprising the following steps. (a) The rim exchange carriage is moved to the rim stock device, and the pair of upper and lower tire rims for removal placed on the rim exchange carriage are transferred to the rim stock device. The process of transferring a pair of upper and lower replacement rim stocks stored in the stock device to the rim replacement carriage. (b) The step of rotating the rim exchange carriage and moving it in the horizontal direction to the center position of the upper and lower main shafts of the uniformity machine. The step of raising the rim exchange carriage in the states of (c) and (b) and fitting the tire rim located at the upper part to the upper main shaft. A step of automatically operating the impact wrench device in the states of (d) and (c) to operate the operating screw of the hydraulic chuck part and chuck the tire/rim onto the upper main shaft. The step of raising the lower main shaft in the states of (e) and (d) and fitting and mounting the lower main shaft onto the tire rim located below. (f) With the lower main shaft lowered to a predetermined position, feed the tire for inspection to the center position of the upper and lower main shafts, and in this state raise the lower main shaft to fit the upper and lower tires and rims onto the bead of the tire. The process of installing it. 2. The frame is provided with an upper main shaft equipped with a hydraulic chuck section and a lower main shaft that can be raised and lowered along the axis of this main shaft, and an impact wrench device for operating the hydraulic chuck section is provided on the frame, and this uniformity machine is A tire rim that is removed from the rim stock device is placed between the rim stock device disposed on the side and the vertical spindle, and is movable in the vertical and horizontal directions, and An automatic tire/rim change device for a uniformity machine, characterized by having a rotatable rim change carriage device.