JPS60148496A - Powder fluid feeding gun - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid powder supply gun that automatically injects gasoline or diesel oil as powder fluid into a fuel tank using an industrial robot, for example, on an automobile assembly line.

In the past, for example, when injecting fuel such as Karin or diesel oil into a fuel tank on an automobile assembly line, workers used a fuel supply gun to inject fuel into the tank. Injection work has become extremely complicated, as care must be taken to avoid scattering or overflowing, and there is an increasing demand for automating the injection work.

Therefore, an automated fuel injection system using an industrial robot has been proposed. In this system, the fuel supply can includes, for example, a gun body equipped with a supply passage inside, and a nozzle that is attached to the can body so as to communicate with the supply passage I and is inserted into the injection port of the fuel tank. The one composed of is used. Then, the fuel supply gun is held by the robot, and the nozzle part of the fuel mooring can is inserted into the injection port by the operation of the robot based on the teaching information of the control device, and the fuel supply gun is started. Fuel is sent from the device,
Gasoline is injected into the tank.

By the way, generally, the above-mentioned injection port is attached to a fuel opening opened in the vehicle body via a fuel filler base, and a fuel filler lid that opens and closes with a hinge is attached to the fuel opening.) The distribution inlet is covered by a fuel filler lid. Therefore, when inserting the nozzle part of the fuel supply can, in order to prevent interference between the nozzle part and the fuel filler lead, the operator must completely insert the fuel filler lead before the fuel injection operation. The fuel filler lid is kept in an open position, that is, a position where the fuel filler lid and the fuel supply gun do not interfere with each other.

However, even if the fuel filler lid is set to the fully open state in advance, the fuel filler lid may open due to vibrations of the vehicle body until the vehicle is transported to the fuel supply position. If the fuel filler lid closes, there is a risk that the open state of the fuel filler lid may be incomplete.In such a case, when the fuel is supplied, the fuel filler lid may collide with the fuel filler lid. Failure to do so may result in damage to the 6-gouge fuel gun and fuel filler lid listed in -, and even if the damage described above could be prevented, the worker may not be able to fully open the fuel filler lid listed in L again. In any case, the line must be stopped and the workers must be bothered, which reduces work efficiency and makes the automation of fuel supply insufficient.

The present invention has been made in view of the above problems, and
The purpose of this is to provide a powder fluid supply gun with an engaging part, and before the powder fluid supply gun injects powder fluid, the robot operates to cause the powder fluid supply gun to engage the dispensing part with the lid and open the lid incompletely. By setting the lid in the fully open position.

To provide a powder fluid supply can that reliably prevents interference between a powder fluid supply gun and a lid, eliminates unnecessary work by workers, and achieves more effective automation of powder fluid supply. It is in.

The gist of the powder fluid supply gun according to the present invention is that Robon I
- Automatically injects powder fluid into the tank from the inlet covered by the lid by the operation of 1-, which engages with the lint at the incompletely open position of the lid and follows the operation of the robot. I: The powder supply can has an engaging portion that positions the lint in the fully open position.

The powder fluid supply can according to the present invention will be described in detail below based on the embodiment shown in the attached drawings.

FIG. 1 is an explanatory diagram showing a system for automating fuel injection. In FIG. 1, a vehicle body I is conveyed to a fuel supply position by a conveyor (not shown) or the like, and a fuel supply gun G supply device F is installed at the fuel supply position. Further, a fuel tank inlet 4 is attached to a fuel opening 2 opened in the vehicle body 1 via a fuel filler base 3, and the fuel opening 2 is attached to the fuel opening 2 on the 2- side &t. A fuel filler lid 5 that closes and covers the injection port 4 is attached via a hinge, and optical sensors 8 (i, 8b) are arranged near the vehicle body 1 with the fuel filler lid 5 sandwiched therebetween. Then, with the vehicle body 1 being transported and positioned, the fuel filler lid 5 is detected by the optical sensors 8a and 8b.
After qualitatively detecting the opening/closing state of the fuel filler lid 5, the fuel supply gun G opens the fuel filler lid 5 by the operation of the robot H, and then the fuel is injected from the injection port 4.

In this embodiment, the fuel supply can G is composed of a gun body lO, a nozzle II, a grip part 12, and an engaging part, as shown in FIGS. 2 and 3. The gun main body 10 is formed in a block shape, and has a supply path inside, and an open/close (F) is interposed in this supply path, and a supply pipe 8 connected to a fuel supply device F is connected to the supply path. It is connected via an adapter 8.The nozzle 11 is -
1- It communicates with the supply path and is inserted into the gun body 10 and inserted into the injection port 10 of the fuel tank. Furthermore, the gripping portion 12 includes a pair of brackets, a handle 13, and an arm 14, and the bracket 13 is connected to the can body 1.
It is mounted on the side opposite to the side where the nozzle 11 is installed, which is indicated by - in 0, and the arm L 14 is supported by the bracket E 3 from both sides, and is gripped by the gripping hand 15 of the robot R. ing.

The basic configuration of the L coupling and engaging portion consists of a receiving pace 1G, a push head 17, a rod 18, and a spring 18 as an elastic member. The receiving base 16 is a substantially cylindrical member having a flange 20 at one end and a through hole 22, and the flange 20 is fixed 21 on one side wall of the can body 10. By doing so, - it is attached to the gun body 10, and the respective axes of the nozzle 11 and the through hole 22 are perpendicular to each other. Also,
The through hole 22 of the base 16 is the large diameter part 2 on the gun body 10 side.
2a and a small diameter portion 22b continuous thereto, and a stepped portion 23 is formed between the large diameter portion 22a and the small diameter portion 22b. Further, the push hend 17 is made of an elastic body made of oil-resistant rubber, for example, and is formed in a substantially conical shape.
A rod 18 is screwed into the bottom surface of the rod 18. This port 18 is inserted into the through hole 22 of the mounting bracket 16, and a head portion of the rod 18 on the gun body 10 side is attached to prevent the rod from being pulled out. 18a is formed, and the head 18a engages with the fitting 1t23 of the through hole 22. Also, between the bottom surface of the L bushing head 17 and the end of the base 16, there is a A spring 18 is interposed via washers 24 and 24, and the bush head 1
7 is movable against the biasing force of the spring 19, and along with this, the rod 18 slides on the small diameter portion 22-b of the L through hole 22.

In addition, in the fuel automatic supply system to which this embodiment is applied, the vehicle body 1 is a car model that has 4Iit of fuel 2 irradiation 5 using 30 7-round hinges, and the fuel 2 irari 5. is lock 3
1 is unlocked, the spring action of the hinge 30 opens it enough for a human hand to enter.

Therefore, the fuel is automatically supplied to the fuel supply tank according to this embodiment.

First, as shown in FIGS. 1 and 4, the light distribution sensors 6a and 6b detect whether the fuel 2, which has been unlocked in advance, is opened at a predetermined angle of 0 to 7. In this case, the fuel 2 irradiation 5 is opened at an opening of -1- more than a predetermined angle θ due to the /Henne action of the hinge 30, so if the opening is less than the predetermined angle θ (position A in FIG. ), for example, an error signal is issued to the control device C because the lock has not been unlocked yet, and the
operation is stopped. Further, when the opening degree of the fuel 2 irradiation 5 is equal to or larger than a predetermined angle .theta. (position 8 in FIG. 4), a collect signal is issued to the control device C, indicating that the door is unlocked. Incidentally, cylinder number 8 in Fig. 4 is the optical sensor 8.
This is a line indicating the optical path of a, f(b).

- When a collect signal is issued to the control device C by the light distribution sensor 1llaJb, the robot R moves the fuel so that the inner surfaces of the actuating fuel filler ends 5 face each other based on the teaching information of the control device C. It is positioned near the opening 2. Next, as shown in FIG. 4, the fuel supply can G moves in the direction in which the fuel 2 illumination 5 opens. In this case, the button head 1 on the engaging part is in the incompletely open position where it interferes with the
7 Abuts against the inner surface of the cuff element 5. At this time, the fuel filler lid 5 is set at a certain angle θ in advance.
Since it has been confirmed that the bushing head 17 will surely be engaged with the fuel filler lid 5 shown in 11z, the button 17 should be made of an elastic material such as rubber. Since the fuel filler lid 5 is formed from scratches, the fuel filler lid 5 is prevented from being damaged.

Furthermore, the fuel supply can G shown in ■- moves in the opening direction of the fuel filler lid 5 along the rotation locus of the fuel filler lid i.5, and when the fuel filler lid 5 fills the fuel, A position that does not interfere with the fuel supply can G, that is, a fully open position N (position C in Fig. 4)
Stop when . In this case, the bushing rod 17 in the retaining portion follows the movement of the fuel supply gun G.
; Since it moves along the rotation locus of the fuel filler lid 5, it pushes the old fuel filler lid 5 while coming into contact with one point on the inner surface, and therefore, the fuel filler lid 5 The fuel filler lid 5 will not be damaged by rubbing the inner surface. In addition, when the fully open position of the fuel filler lid 5 is at the open end, if due to installation error of the vehicle body 1, etc.
] Even if the fuel supply candy gun G goes too far in the opening direction of the fuel filler cylinder 5, the bushing rod 17 in the engaging portion will not be held back by the old force of the spring 18, as shown in FIG. 1. Because it resists and retreats toward the gun body lO side. This prevents the fuel filler lid 5 from being damaged by the E fitting portion.

Next, robot R based on the teaching information of control device C
By this operation, the engaging portion K of the fuel supply can G is separated from the fuel filler lid 5, and the nozzle +1 of the fuel supply gun G is inserted into the injection port 4. At this time, the fuel filler lid 5 is in the fully open position, so
Interference with the fuel supply gun G is reliably prevented. In this state, the opening/closing valve of the can main body 1O opens, the robot l'R returns to its original position based on the teaching information of the fuel supply device C, and the series of fuel injection operations ends.

Furthermore, 1. In this embodiment, the engaging portion of the fuel supply gun G is provided with a buffer spring 19 and a bushing head 17.
However, it is not necessarily limited to q. For example, the bushing head or nozzle itself may be used as the engaging part, or it may be a pin, etc. In short, the fuel filler lid Any device may be used as long as it engages with the fuel filler lid 5 in the partially open position of 5 and positions it in the fully open position. In addition, in the system to which this embodiment is applied, the fuel filler lid of the vehicle body 1 has been described as having a spring-type hinge 30 and being able to open to a certain extent just by unlocking, but the system is not necessarily limited to this. Instead, it may be a type using a general hinge, in which case,
In order to make it easier for the worker to engage the engaging portion, the lock may be opened by a certain angle or more after unlocking. Furthermore, in the above system, using the optical sensors 8a and flb,
It is detected whether or not the fuel filler lid 5 is opened at a predetermined angle or more.
It is not necessary to perform the detection using b. Further, in the above embodiment, the present invention is applied to a fuel supply gun for automobiles, but the present invention may also be applied to powder supply guns other than those for automobiles, such as Kanrin, light oil, etc. The present invention is not limited to this type of fuel, and can also be applied to other powder fluids.

As described above, according to the powder fluid supply gun according to the present invention, the gun body is provided with a retaining portion, and the engaging portion is engaged with the lid in an incomplete position by the operation of the robot before powder fluid is supplied. Let's match.

Since the lid is set to the fully open position, interference between the powder supply gun and the lid during powder supply is reliably prevented, and unnecessary worker work such as repair due to the interference is avoided. Therefore, more effective automation of powder supply can be achieved.

In addition, if the L connecting portion is provided with an elastic member that contracts at the open end of the lid, when the fully open position of the lid is set at the open end of the lid, the above-mentioned open end Even if the above-mentioned engaging part shifts in the opening direction of the door, the L2 elastic member contracts, so no undue force is applied to the lid or the powder supply gun, and the lid This prevents damage to the liquid powder supply can.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of an automatic powder supply system to which the present invention is applied, FIG. 2 is a diagram showing an embodiment of a powder supply gun according to the present invention, and FIG. FIG. 4 is a perspective view showing the relationship between the liquid powder supply gun and the lid, and FIG. 4 is an explanatory view showing the action when the lid is positioned at the fully open position by the retaining portion. R...Robot F...Fuel supply device C...Control device G...Fuel supply can (powder supply gun)]・
...Car body 4...Inlet 10...Gun body 11...Nozzle K...Engagement part 17...Bush head 19...Spring (elastic member) Figure 2

Claims (1)

[Claims] 1) A powder fluid supply can that automatically injects powder fluid into a tank from an injection port covered by a lid by the operation of a robot, which An engaging part that engages with the lid and positions the lint in the fully open position following the robot's operation! + Powder supply gun featuring a dog. 2), wherein the fitting portion includes an elastic member that contracts at the open end of the lid.
Powder supply gun as described in section.