JPH0310465B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of an XY loader for supplying body parts to, for example, an automobile body assembly line.

[Conventional technology]

As a conventional XY loader for supplying car body parts,
For example, there are those shown in FIGS. 9 to 11. 1
is a storage position for vehicle body parts (for example, a roof) W, where a plurality of storage conveyors 2 transport pallets P loaded with parts W in the direction of arrow A, and unloaded empty pallets are transported in the direction of arrow B. An unloading conveyor 3 is installed. 4 is parts W along body assembly line L from parts storage position 1
The Y loader body 5 reciprocates on the elevated track 4a. Reference numeral 6 denotes a loader traveling means, which includes drive wheels 8a and 8b around which the tow cable 7 of the loader main body 5 is looped, and a drive motor M that rotates one of the drive wheels 8a in forward and reverse directions. Reference numeral 10 denotes an X loader for transporting parts W in a direction orthogonal to the Y loader 4, and an X loader main body 11 reciprocates on an elevated track 10a. Reference numeral 12 denotes a traveling means of the X loader which is configured similarly to the traveling means 6 of the Y loader 4. Both the Y and X loader bodies 5 and 11 described above each include a hanger H for gripping a component W and an elevating cylinder mechanism S thereof. 13 is a relay shifter device provided at the intersection of the Y loader orbit 4a and the X loader orbit 10a.

When the Y loader main body 5 grasps and lifts the part W in the pallet P with the hanger H, it travels on the Y loader track 4a, once lowers the part W onto the workpiece pedestal 13a of the shifter device 13, and then reverses it. Run and return to the original parts storage position 1. The workpiece pedestal 13a of the shifter device 13 moves toward the X loader 10 from the position where it received the conveyed parts W of the Y loader main body 5. X
The loader main body 11 moves the shifter device 13
When the part W on the work pedestal 13a is grasped and lifted up by the hanger H, the X loader travels on the track 10a and moves to the work set position 14 on the car body assembly line L.
Stop at the stop and lower the roof part W onto the roof of the vehicle.

In this way, the roof parts W can be automatically transported from the storage position to the set position in accordance with the transport pitch of the car bodies flowing on the car body assembly line L.

[Problem that the invention seeks to solve]

However, in the case of such a conventional XY loader, both loaders are on the same level, both loader bodies have integral hangers for gripping parts, and the transfer of goods between the two loaders is difficult. , because it was performed via a relay cradle,
The part gripped by the Y loader has to be released and gripped again by the X loader, which tends to disrupt the positioning accuracy of the workpiece and requires many man-hours for adjustment. Moreover, there is a problem in that the parts are easily deformed or damaged due to re-gripping.

This invention was made by focusing on such conventional problems, and by providing an The purpose is to solve problems.

[Means for solving problems]

This invention achieves the above object in an XY loader consisting of a Y loader that transports parts in one direction on a plane and an X loader that receives the parts and transports them in an orthogonal direction. The loader is constructed with a difference in height on the track, and includes hangers for supporting the parts, connected parts of the air supply device and power supply device for operation and control means of the hangers, means for connecting with each transport loader main body, and X A hanger truck having loader track running rollers is disposed, and the main body of the Y loader includes connection parts of the air supply and power supply device, a hanging connection means of the hanger truck, and a Y loader body.
The XY loader is provided with a loader track self-propelling means, and the main body of the X loader is provided with at least a hanger truck traction coupling means and an X loader track self-propelling means.

〔Example〕

The present invention will be explained below based on the drawings.

1 to 8 are diagrams showing one embodiment of the present invention. Note that the same reference numerals are given to parts that are the same as or corresponding to the conventional ones.

First, to explain the configuration, the Y loader 20 is
It is equipped with a double elevated track 21 supported by 1a and a Y loader main body 22 that runs by itself on the elevated track 21. The X loader 23 has a double track 24 installed via a support 24a at a level lower than the track 21 of the Y loader.
and an X loader main body 25 that runs on it. Reference numeral 26 denotes a hanger truck formed separately from both loader bodies 22 and 25.

The details of the hanger cart 26 will be explained with reference to FIGS. 2 and 3. Reference numeral 27 is a hanger attached to the lower part of the cart frame 28 to support the transported part W in a suspended state. A claw 29 for gripping the part W, and a frame 2 as a means for operating the claw.
an air cylinder 30 pivotally supported by an air cylinder 8; and a solenoid valve 31 for switching the cylinder air circuit as a control means for the air cylinder 30;
It is equipped with 32 is an air supply pin receiver as a connected part of an air supply device 51 (described later) that supplies pressurized air to the air cylinder 30 through this control solenoid valve 31, and 34 is a control for the solenoid valve 31, a limit switch (not shown), etc. This is a connected part of a device power supply device 35 (shown in FIG. 4). This power supply device 3
5, a plurality of independent power receiving brushes 36 are arranged in a row on the connected part 34 side, while a plurality of independent power receiving brushes 36 are arranged in a line on the connecting part 37 side in a 1:1 correspondence with each power receiving brush 36. Contact conductors 38 are arranged in parallel. 39
The carriage 2 is used as a means to be connected to the Y loader main body 22.
This is a connecting handle fixed at the front and rear of 6. 40 is X
This is a connection receiving member fixed to the side of the hanger truck 26 as a means to be connected to the loader main body 25. 41
are running rollers attached to the front and rear sides of the hanger truck frame 28, and are formed so as to fit into the side recesses 24b of the X loader track 24 and roll. Details of the Y loader body 22 are shown in Figures 2 and 3.
As shown in FIGS. That is, 42 is a Y loader undercarriage that runs by itself on the track 21 via wheels 43, 44 is an elevating platform that is supported in a vertically movable manner by an elevating air cylinder 45 attached to this undercarriage 42, and 46 is this elevating platform. Standing on 44 and train platform 4
2 is an elevating guide mechanism. Reference numeral 47 denotes a hanging coupler as a means for connecting the hanger cart 26, which is attached via an arm 48 to the front and rear positions of the lifting platform 44 in the traveling direction, and a connecting means provided on the hanger cart 26 side. The clamper 49 is rotatably supported to engage with the clamper 39, and an air cylinder 50 for rotating the clamper 49 is provided.
Reference numeral 51 denotes an air supply device attached to the side surface of the lifting table 44, and includes a taper pin 52 for air supply and positioning, and an air cylinder 53 for vertical movement operation. As shown in FIG. 6, the taper pin 52 is formed with an air piping connection port 54 and an air passage 55, and when it engages with the air supply pin receiver 32 provided on the hanger cart 26 side, It communicates with the air passage 32a on the pin receiving side. Lifting platform 44
A connecting portion 37 of a power supply device 35 is attached to the lower surface of the power supply device 35 . FIG. 5 shows the self-propelled means 5 of the Y loader main body 22.
6, which is equipped with an electric motor 57 mounted on a train platform 42, a reducer 58, a coupling 59, an output shaft 61 supported by a bearing 60, a pinion gear 62 fixed to the output shaft 61, and a Y loader 20. This pinion gear 6 is inside the raceway 21 of
A rack 63 is formed that meshes with 2.

Details of the X loader main body 25 are shown in FIGS. 2, 6, and 7. Reference numeral 64 denotes a train platform that is self-propelled on the X loader track 24 via wheels 65, and as in the case of the Y loader, an electric motor 6 is used as self-propelled means 66.
7. An output shaft 71 and a pinion gear 72 are mounted while being supported by a reducer 68, a coupling 69, and a bearing 70, while a rack is formed inside the X loader track 24. Reference numeral 73 denotes a traction coupling device provided on the X loader main body 25 as a means for coupling with the hanger carriage 26, and includes a pin 74 that engages with the coupling receiving member 40 fixed to the hanger carriage 26 mentioned above; An air cylinder 75 is provided as an attachment/detachment means. In addition, 76 indicates both the Y and X loader bodies 22, 2.
5 is a cable bear that houses cables and piping that supply the necessary power and pressurized air, and one end is supported by each loader body 22, 25 via a support 77, so that it can be routed while smoothly following the travel movement. It's like this.

78 shown in FIG. 2 is the trajectory 24 of the X loader.
Above, this is an air/power supply station installed at the intersection with the car body assembly line L, and the hanger trolley 26
Air supply taper pin 7 that engages with air supply pin receiver 32 of
9 and an air cylinder 80 for vertical movement thereof, and the connecting portion 3 of the power feeding device 35 to be connected to the power feeding device connected portion 34 of the hanger truck 26.
7 is provided.

82, also shown in FIG. 2, is a partial opening/closing device for the X loader track 24, the details of which are shown in FIG. That is, 83 is an opening/closing track that is partially opened when the hanger truck 26 enters and exits the X loader track 24, 84 is its rotation axis, and 85 is the support column 85.
86 is a limit switch for controlling the rotation range. Note that the air cylinder 80 of the air supply device 81 provided in the air supply/power supply station 78 and the track opening/closing device 8
Air is supplied to the air cylinder 85 provided in the air cylinder 85 from an air source 87 through a control solenoid valve 88 and through a fixed pipe 89 provided therein.

Next, the effect will be explained.

At the storage position 1 for vehicle body parts W, the Y loader main body 22 suspends and holds a hanger truck 26 via a coupling device 47. Air supply pin 52 of air supply device 51
is coupled to the air supply pin receiver 32. In this state, operate the air cylinder 45 for lifting and lowering the lifting platform 44.
lower the parts W in the pallet P to the hanger 27.
When gripped with , the lifting table 44 is raised. Next, the Y loader main body 25 moves by itself with the hanger truck 26 suspended. That is, the electric motor 57 of the self-propelled means 56
is started and moves forward on the Y loader track 21 by the action of the pinion gear 62 and rack 63. At this time, X
The open/close track 83 in the loader track 24 is open. The hanger truck 26 passes through the open track portion, is carried into the X loader track 24, and stops. Then, the air cylinder 85 of the track opening/closing device 82 moves forward to close the opening/closing track 83. As a result, the running rollers 41 of the hanger truck 26 fit into the side recesses 24b of the X loader track 24, as shown in FIG. 3, and the hanger truck 26 is transferred onto the X loader track 24. When this transfer is completed, the hanging coupler 47 on the Y loader main body 22 side is activated,
Handle 39 for connecting clamper 49 and hanger cart 26
disengage with. Next, the lifting platform 44 is raised to the upper limit by operating the lifting air cylinder 45. As a result, the connection between the connecting portion 37 and the connected portion 34 in the power feeding device 35 is separated. At this time, by simultaneously operating the air cylinder 53 of the air supply device 51, the air supply taper pin 52 shown in FIG.
and the air supply pin receiver 32, and then remove the hanger trolley 2.
Also separate the air supply circuit to 6. The Y loader main body 22, which has thus released the hanger truck 26, runs in the opposite direction and retreats. On the other hand, the X loader main body 25 travels on the X loader track 24 from the retreat position to the transfer position by the operation of its self-propelled means 66, approaches the hanger truck 26, and stops (Figs. 6 and 7). reference). Then, the traction coupler 73 is activated, the pin 74 is pushed into the recess of the coupling receiving member 40, and the hanger truck 2
Connect with 6. Next, the X loader main body 22 faces the air supply/power supply station 78 and moves to the hanger cart 26.
The hanger cart 26 moves on its own while towing the station 78, and stops when the hanger cart 26 reaches directly below the station 78. In that state, the power supply device 3 provided in the station 78
The contact conductor 38 of the connection part 37 in 5 is connected to the power receiving brush 36 of the connected part 34 on the hanger cart 26 side.
automatically comes into contact with the hanger truck 26, and the power supply circuit to the hanger cart 26 is connected. Furthermore, when the air cylinder 80 of the air supply device 81 provided in the station 78 is activated, the air supply taper pin 79 fits into the air supply pin receiver 32 on the hanger truck 26 side, and the air supply circuit to the hanger truck 26 is also connected. . At this air supply/power supply station 78 position, the parts W held by the hanger 27 of the hanger truck 26 and lifted onto the car body assembly line L are as follows:
When the vehicle body is transported, it is released from the grip of the hanger 27 and assembled to the vehicle body.

As mentioned above, the parts W supported on the hanger cart 26 are transported by the Y loader, transferred to the X loader track at the intersection point, and transported to the workpiece set position by the X loader, which are carried out in a series of cycles according to the assembly pitch. The process is automatically repeated, but during this time, the transported part W itself remains held by the same hanger. The empty hanger truck 26 with the parts W released follows a reverse course and is returned to the intersection, and then transferred to the Y loader main body 22.

In addition, in the above embodiment, the connection part 37 of the power supply device 35 in the air supply/power supply station 78
and the air supply device 81 as well as the Y loader main body 22.
It is also possible to provide it on the loader main body 25, in which case the air/power supply station 78 may be omitted. Further, by preparing hanger carts in advance according to the type of workpiece, changes in workpieces can be dealt with quickly.

In this embodiment, the Y loader takes out the work from the storage position and transports it, but the X loader may take out the work and the roles of the X and Y loaders may be switched.

〔Effect of the invention〕

As explained above, according to this invention,
Since the work is transferred and transferred from the Y loader to the , no adjustment man-hours are required. Moreover, the effect of eliminating deformation and damage to parts during transportation can be obtained.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the overall arrangement of an embodiment of the present invention, Fig. 2 is a perspective view of the main part of what is shown in Fig. 1, and Fig. 3 is an XY intersection point indicated by the arrow in Fig. 2. FIG. 4 is a side view of the connection between the Y loader main body and the hanger cart, FIG. 4 is a side view showing an example of the power supply device, and FIG.
The figure is a configuration diagram of the self-propelled means of the Y loader shown in the - arrow direction in FIG. 8 is a plan view shown in the - arrow direction of
The plan view of the loader track opening/closing device, Figure 9, shows the conventional
Plan view showing the overall arrangement of an example of an XY loader, 1st
0 is a side view of the Y loader shown in the direction of the X arrow in FIG. 9, and FIG. 11 is a side view of the X loader shown in the direction of the XI-XI arrow in FIG. 1... Parts storage position, L... Assembly line,
W……Parts, 20……Y loader, 21……
(Y loader) orbit, 22...Y loader body, 2
3...X loader, 24...(X loader) track, 25...X loader body, 26...Hanger truck, 27...Hanger, 32...Air supply pin receiver (air supply cover connection part), 34......power supply connected part,
35......Power supply device, 37......Power supply connection section, 3
9...Connection means (with Y loader main body), 40
...... Connecting means (with the X loader main body), 41...
...Traveling roller, 47... (hanging) coupler,
51...Air supply device, 52...Air supply connection part (taper pin), 56...Y loader self-propelled means, 66
......X loader self-propelled means, 73......traction coupler.

Claims (1)

[Claims] 1. In the XY loader, which consists of a Y loader that transports parts in one direction on a plane and an At the same time, a hanger truck is installed, which has a hanger for supporting the parts, connected parts of the air supply device and the power supply device for operation and control means of the hanger, means connected to each transport loader main body, and an X loader track traveling roller. The main body of the Y loader is provided with connection portions of the air supply and power supply devices, hanging connection means for the hanger truck, and Y loader track self-propelling means,
An XY loader characterized in that the main body of the loader is provided with at least a traction coupling means for a hanger truck and an X loader track self-propelling means.