JPH0739866Y2 - Transport device using self-propelled body - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier device using a self-propelled body for supporting and carrying a vehicle body in, for example, an automobile assembly line.

[0002]

2. Description of the Related Art Conventionally, as a transfer device for supporting and transferring a vehicle body, a hanging transfer type or a trolley transfer type has been provided. When there is a work process in which the vehicle body is dipped in the liquid for processing, the hanging transfer type is mainly adopted.

That is, in the past, for example, Japanese Patent Laid-Open No. Sho 62/1987
An elevating device found in the 4773 publication is provided. This lifting device is mounted on a carrier that is supported and guided by rails, and can lift and lower a hanging device by operating a pair of front and rear hoists. The swing of the hanger is stopped by the pin-fitting type steady rest provided on the. In addition, the hoist is tilted by changing the operation amount (elevation amount) of the hoist, and the workpiece is tilted in the immersion tank.

However, according to the above-mentioned lifting device, since the operation amount of the hoist group is within a preset constant range, the inclination angle of the object to be processed is always constant, and therefore the inclination angle depends on the type of the object to be processed. It is not easy to arbitrarily change the angle (preferable plunge angle). In addition, when the chain in the hoist expands, the operation amount of the hoist group is within the set constant range as described above, so the constant inclination angle of the object to be processed is disturbed, and suitable processing can be performed. Absent. Furthermore, since it is a pin-fitting type steady rest, it is not possible to perform sufficient steady rest, for example, a turning action occurs, so that high speed traveling cannot be performed.

Therefore, by adopting (incorporating) a detector for the length of the wire rope, which is found in, for example, Japanese Unexamined Patent Publication No. Sho. Can be changed arbitrarily and easily, and the inclination angle can always be a desired inclination angle without being disturbed.

[0006]

However, in the above-mentioned built-in construction, the control panel for controlling the detection and the control of the hoist operation amount and the like must be arranged through a special support structure. Becomes complicated. In addition, a space is required for disposing the control panel, which causes the bulkiness of the whole. Furthermore, when the pin-fitting steady rest is used, the overall structure is weakened and the run-out force on the lifting tool side causes the pin fitting part to move. Bending will occur and smooth pin fitting will not be possible.

The object of the present invention is to simplify the structure of the control panel, and the control panel can be installed by utilizing the dead space, and the fixing device for steadying can be made firm. The point is to provide a transport device using a self-propelled body that can be configured.

[0008]

In order to achieve the above object, a carrier device using a self-propelled body according to the present invention comprises a self-propelled body supported and guided by rails and a plurality of lifting devices to convey an object to be conveyed. A support is provided, and the elevating device has an elevating device that can be driven forward and backward, and an elevating amount detecting device, and a control panel to which the elevating device and the elevating amount detecting device are connected is A pair of front and rear fixing devices, which are arranged on the lower surface side via a supporting member, for fixing the horizontally rising supporting device between the supporting member side and the supporting device, and these fixing devices are provided on the supporting member. And a cylindrical portion formed in the lower part of the, and a rod body erected from the support tool side, the cylindrical portion,
It is configured to move by a slit formed on the ceiling of the work room.

The transport device using the self-propelled body of the present invention is
In Claim 1, a support member consists of a pair of front and rear cylinders that are hung vertically from a self-propelled body, and a control panel mounting member that is provided between the middle portions of these cylinders, and is fixed by the lower parts of both cylinders. It forms the tubular portion of the device.

[0010]

According to the above-described structure of the present invention, the control panel of the self-propelled body can be arranged by using the supporting member which is a part of the member constituting the fixing device. By controlling the traveling speed of the self-propelled body, the conveyance speed of the conveyed object can be arbitrarily changed and further stopped as necessary. At that time, in a general path portion, the horizontally raised support tool can be integrally fixed to the self-propelled body side by a pair of front and rear fixing devices, so that the support tool can turn relative to the self-propelled body side. Also, stable transport can be performed even at high speed.

By simultaneously moving the respective lifting devices up and down by the same amount, the transported object can be raised and lowered horizontally.
Further, by changing the descending amount of each elevating device, the transported object supported by the supporting tool can be tilted in any direction and at any angle. Such horizontal elevating and tilting
Based on the detection of the lifting amount detecting device, each lifting device is individually controlled via the control panel, so that the changing or adjusting can be automatically performed and the desired state can be always maintained.

Further, according to the present invention, the supporting member can be firmly constituted by the frame shape of the cylindrical body and the control board mounting member, and the control board is disposed in the dead space formed between the upper portions of the cylindrical bodies. You can Furthermore, the cylindrical body that constitutes the fixing device
Since the structure is reinforced by the control panel mounting member and the like, it can oppose the deflection force generated on the support tool side during traveling, when traveling is stopped, when traveling is started, and the like. Since the tubular portion can have a small diameter, the slit portion can be formed as narrow as possible.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is a rail having an I-shaped cross section,
A flange 2 from the ceiling beam side is supported via a mounting bracket 3, and a signal / power supply device 4 is arranged over the entire length on a side surface opposite to a side surface to which the mounting bracket 3 is coupled.

The self-propelled body 5, which is supported and guided by the rails 1 and is free to travel, includes a front trolley 6, a rear trolley 7, and front and rear frames that connect the trolleys 6 and 7 via suspension pins 8 and 9. Composed of 10 etc. Both trolleys 6 and 7 are composed of trolley bodies 11 and 12 and left and right shafts 13 and 14 attached to the front and rear of the trolley bodies 11 and 12 at front and rear positions.
Attached to the rail and freely placed on the upper surface of the rail 1
Rollers 17 and 18 for preventing horizontal shake that are attached to both trolley bodies 11 and 12 and can freely contact both lower sides of the rail 1
And floating prevention stoppers 19 and 20 attached to both trolley bodies 11 and 12 and abuttable on the lower surface of the rail 1.

The front trolley 6 is provided with a traveling drive device 21 interlocking with the rear shaft 13 and a current collector 22 slidably contactable with the signal / power supply device 4. A control panel 23 is arranged on the lower surface side of the front and rear frames 10 via a support member 60. The self-propelled body 5 includes a front lifting device 30 and a rear lifting device.
A support tool 50 for an object to be transported is provided via 31.

The two lifting devices 30 and 31 include left and right rotating shafts 34 and 35 supported on the front and rear frames 10 through bearings 32 and 33, respectively.
Cyclomotors (an example of a lifting device that can be driven forward and backward) 36 and 37 mounted on the front and rear frames 10, and winding transmission devices 38 and 39 that connect the cyclomotors 36 and 37 to the rotary shafts 34 and 35 in an interlocking manner. A sprocket 40, 41 fixed to one end of the rotary shafts 34, 35, and roller chains 42, 43 hung on the sprocket 40, 41 from above and having one free end connected to the support 50. A chain container in which the other free ends of the roller chains 42 and 43 can be stored and fed out freely.
It consists of 44 and 45.

Further, both the lifting devices 30 and 31 respectively have a lifting amount detecting device, and these lifting amount detecting devices are, for example, rotating plates 46 and 47 fixed to the other ends of the rotating shafts 34 and 35, and rotations thereof. Pulse transmitters 48, 49 provided corresponding to the plates 46, 47
Composed of and. The pulse transmitters 48 and 49 and the cyclomotors 36 and 37 are connected to the control panel 23.

The support tool 50 includes the roller chains 42, 43.
An upper frame 51 connected to each other, a front arm 52 vertically extending from both sides of a front end of the upper frame 51, a rear arm 53 vertically extending from both sides of a rear end, and a front arm 52 and a rear arm that face each other in the front and rear.
From a joint material 54 connecting between the upper and lower arms 52 and 53, receiving members 55 and 56 continuously connected inward from the lower portions of both arms 52 and 53, and a support 57 for preventing floating from being suspended from the upper frame 51. A vehicle body 59, which is an example of an object to be conveyed, is supported between the receiving members 55 and 56.

A pair of front and rear fixing devices for fixing the horizontally raised support tool 50 between the support member 60 side and the support tool 50.
63 are provided. That is, the support member 60 includes a pair of front and rear cylinders 61 vertically extending from the front and rear frame 10, and the cylinders 61.
The control panel mounting member 62 is provided between the intermediate portions of the control panel mounting member 62, and the control panel 23 is mounted and fixed on the control panel mounting member 62.

The two fixing devices 63 have a tubular portion 64 formed by the lower portions of the two tubular members 61 (formed under the supporting member 60).
And a pair of front and rear rod bodies 66 provided upright from the upper frame 51, and these rod bodies 66 can be fitted into the tubular portion 64 from below. Further, in order to facilitate the fitting, a downward trumpet-shaped guide tube is provided at the lower end of the tubular portion 64.
65 are provided. The tubular portion 64 is configured to be moved by a slit portion 29A formed in the coating chamber ceiling portion (coating chamber ceiling portion) 29.

A liquid tank 27 is formed below a predetermined position in the traveling path 25 of the self-propelled vehicle 5, and the liquid tank 27 is elongated in the direction of the traveling path 25 as shown in FIG. Format and Figure 5
Various arrangements and formats are available, such as a side-by-side format provided corresponding to a plurality of branch paths as shown in FIG. 6 and a format common to a plurality of branch paths as shown in FIG. 28 is liquid, 28a
Indicates the liquid level.

Next, the transfer work in the above embodiment will be described. In the self-propelled body 5, the control board 23 can be arranged by using the support member 60 which is a part of the members constituting the fixing device 63.
At this time, the support member 60 can be firmly configured by the frame shape of the tubular body 61 and the control panel mounting member 62, and the control panel 23
Can be arranged in a dead space generated between the upper parts of the cylinder 61.

In the general travel route 25, the route shown in FIGS.
As shown in FIG. 5, the rod body 66, which is horizontally raised by the lifting (winding) action of the both lifting devices 30 and 31, is fitted into the tubular portion 64 from below, and the support tool 50 is integrally fixed to the self-propelled body 5. It has become. When the traveling drive device 21 is operated to forcibly rotate the wheel body 15 in this state, the self-propelled body 5 is supported on the rail 1 by the plurality of wheel bodies 15 and 16, and the plurality of lateral shake preventing rollers 17 and
The vehicle travels in a state in which lateral shake is prevented by 18, so that the vehicle body 59 is supported and conveyed via the support tool 50, for example, in a coating room or the like.

At this time, the support tool 50 is a pair of front and rear fixing devices.
Since it is integrally fixed to the self-propelled body 5 by 63, stable conveyance can be performed without shaking or turning even at a high speed. Further, since the cylindrical body 61 that constitutes the fixing device 63 has a structure reinforced by the control panel mounting member 62 and the like, a shake generated on the support tool 50 side during traveling, when traveling is stopped, when traveling is started, etc. Can oppose force.
Since the tubular portion 64 can have a small diameter, the slit portion 29
A can be formed as narrow as possible.

The power supply to the self-propelled body 5 is performed by the current collector 22 slidingly contacting the signal / power supply device 4, and at this time, the signal is transmitted and received between the ground side control section and the control panel 23. It is carried out to stop, run, control the running speed, and confirm seating.

When the vehicle body 59 conveyed as described above is immersed in the liquid 28 in the liquid tank 27, the self-propelled body 5 is first stopped above the liquid tank 27 as shown in FIG. Next, both lifting devices 3
Move 0 and 31 down a little to move the cylindrical body 64 to the rod body 66.
3 is pulled out downward, and then only the front elevating device 30 is moved down, and the vehicle body 59 is tilted by a predetermined angle via the support tool 50 as shown by the phantom line A in FIG. After tilting at this predetermined angle, both the lifting devices 30 and 31 are simultaneously moved down, so that the vehicle body 59 is submerged in the liquid 28 as shown by the phantom line B in FIG. Since the vehicle body 59 is tilted during this submersion,
Smooth entry into the liquid surface 28a, and
By smoothly venting air from the upper slope of 59,
The replacement of the air inside the vehicle body 59 with the liquid 28 is reliably and smoothly performed.

Then, only the rear lifting device 31 is moved downward,
The vehicle body 59 is submerged in a horizontal state as shown by the solid line in FIG. As a result, the vehicle body 59 is subjected to liquid treatment. At that time, the vehicle body 59 is tilted to the upper front portion as shown by the phantom line C in FIG. , The rear lifting device 31 is moved upward to incline the vehicle body 59 to the rear upper part as shown by a virtual line B in FIG.
~ Swing 3 times.

When the liquid tank 27 is short as shown in FIGS. 5 and 6, the vehicle body 59 is tilted as shown by the phantom line B in FIG. The vehicle body 59 is lifted to the position indicated by the phantom line B and taken out from the liquid 28. At this time, the vehicle body 59 is tilted,
Discharge of 28 (draining) is performed smoothly. Then, the vehicle body 59 is horizontally adjusted together with the support tool 50, and is vertically moved by the ascending / descending movements of the both lifting devices 30 and 31 to move the rod body.
The 66 is fitted into the tubular portion 64 from below to be integrally fixed.

When the liquid tank 27 is long as shown in FIG. 4, when the vehicle body 59 is horizontal as shown by the solid line in FIG.
By moving the self-propelled body 5 at a low speed, the vehicle body 59 can be moved in the liquid 28 as shown by a virtual line D in FIG. And liquid tank 27
Near the end of the vehicle body 59
Is removed from the liquid 28.

The lifting and lowering of the above-mentioned lifting devices 30 and 31 can be carried out by driving or stopping the cyclomotors 36 and 37 in the forward and reverse directions according to a control signal from the control board 23. At that time, the basic lifting amount can be easily set in the control panel 23 according to the vehicle type. The actual amount of vertical movement is detected by the rotation of the rotary plates 46, 47 integrated with the sprockets 40, 41 and the pulse transmitters 48, 49. By inputting the detection signal into the control panel 23, the roller chains 42, 43 are detected. It is controlled by automatically adjusting the elongation of the.

As described above, after the liquid treatment, the self-propelled body 5 and the support tool 50 are made to travel to the next step in a state of being integrated with each other. At 26, stop once and drain the liquid.

Although the vehicle body 59 is tilted for the liquid treatment in the above-described embodiment, this can be done by tilting the vehicle body 59, slowing the traveling speed, or stopping the vehicle body 59 in other work processes as necessary. It can be done.

[0033]

According to the present invention having the above-described structure, the control panel in the self-propelled body can be arranged by using the supporting member which is a part of the member constituting the fixing device, which requires no special supporting structure. Therefore, the arrangement structure can be simplified.

Further, according to the present invention, the support member can be firmly constituted by the frame shape of the cylinder body and the control board mounting member, and the control board utilizes the dead space generated between the upper portions of the cylinder bodies. It can be easily arranged and the whole structure can be made low in bulk. Further, the tubular body constituting the fixing device can be reinforced by a control panel mounting member or the like, and can sufficiently oppose the run-out force generated on the support side, so that smooth fitting can always be expected without bending. Then, the diameter of the tubular portion can be reduced and the slit portion can be formed as narrow as possible.

[Brief description of drawings]

FIG. 1 is a side view of a carrier device using a self-propelled body according to an embodiment of the present invention.

FIG. 2 is a rear view of the carrier device using the self-propelled body.

FIG. 3 is a side view of a main part showing an operating state when loading and unloading the same in the liquid tank.

FIG. 4 is a schematic plan view showing the elongated liquid tank.

FIG. 5 is a schematic plan view showing the juxtaposed liquid tank.

FIG. 6 is a schematic plan view showing the commonized liquid tank.

[Explanation of symbols]

 1 rail 4 signal / power supply device 5 self-propelled body 10 front and rear frame 21 traveling drive device 22 current collector 23 control panel 25 traveling route 27 liquid tank 28 liquid 28a liquid surface 29 coating room ceiling part (working room ceiling part) 29A slit part 30 Front lifting device 31 Rear lifting device 36 Cyclo motor (lifting device) 37 Cyclo motor (lifting device) 42 Roller chain 43 Roller chain 46 Rotating plate (lifting amount detecting device) 47 Rotating plate (lifting amount detecting device) 48 Pulse transmission Machine (elevation amount detection device) 49 Pulse transmitter (elevation amount detection device) 50 Support 59 Car body (object to be transported) 60 Support member 61 Cylindrical body 62 Control panel mounting member 63 Fixing device 64 Cylindrical part 65 Guide part 66 rod body

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B66C 17/08

Claims (2)

[Scope of utility model registration request] 1. A self-propelled body supported and guided by rails is provided with a support for an object to be conveyed via a plurality of lifting devices, and the lifting device comprises a lifting device capable of forward and reverse driving and a lifting amount detection device. And a control panel to which the lifting / lowering device and the lifting / lowering amount detection device are connected is disposed on the lower surface side of the self-propelled body via a support member, and between the support member side and the support tool. , A pair of front and rear fixing devices for fixing the horizontally raised support device are provided, and these fixing devices are constituted by a tubular portion formed in the lower portion of the support member and a rod body standing from the support device side. In addition, the transporting device using a self-propelled body is characterized in that the tubular portion is configured to be moved by a slit portion formed in the ceiling portion of the working chamber. 2. The support member is composed of a pair of front and rear cylinders suspended from the self-propelled body, and a control panel mounting member provided between the middle portions of these cylinders, and fixed by the lower portions of both cylinders. The transporting device using a self-propelled body according to claim 1, wherein a tubular portion of the device is formed.