JP2520440B2 - Seal plate assembly device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal plate assembling apparatus for assembling a seal plate such as a gasket to an assembled member such as an engine cylinder block.

(Prior Art) Generally, in a station in which a large number of plates are stacked and placed, the suction means of an industrial robot picks up the uppermost plate in order and conveys it to an assembly station for assembly to a work. It is known that (see JP-A-60-80586).

By the way, in the case of an engine gasket, oil is attached to the surface of the gasket, and if they are stacked as they are, the gaskets will stick to each other and it will be difficult to separate them. In this case, when the gasket is picked up by the suction means, the release paper under the gasket also adheres and follows, and the operator needs to remove this release paper separately.

(Problems to be Solved by the Invention) An object of the present invention is to mount a seal plate in a laminated state via an intermediate material such as the release paper described above.
It is an object of the present invention to provide a seal plate assembling apparatus capable of assembling a seal plate on a work while automatically and sequentially removing intermediate materials.

(Means for Solving the Problem) A seal plate assembling apparatus according to the present invention includes a seal plate mounting position where seal plates are stacked in a state in which intermediate plates are interposed, and a seal plate for assembling the seal plate to a work. The movable member is provided with a movable member that moves between three positions, that is, an assembling position and an intermediate material removing position for removing the intermediate material. The movable member has a first suction means for sucking the seal plate and the intermediate material. Second adsorbing means for adsorbing,
Air blow means for ejecting air to the intermediate material is provided, and the first blower is provided at the seal plate mounting position.
The second suction means is operated to adsorb the seal plate and the intermediate material in contact with the lower surface thereof, the air blow means is operated at the intermediate material removing position to remove the intermediate material, and the seal plate is attached at the seal plate mounting position. 1) A control means for controlling the first and second suction means and the air blow means so as to stop the operation of the suction means and assemble the seal plate to the work is provided.

(Operation) In the above seal plate assembling device, the first and second
Since the suction means positively picks up the seal plate and the intermediate material therebelow, the intermediate material does not remain attached to the seal plate below it. Then, in the removal of the intermediate material, not only the operation of the second adsorption means is stopped, but also the air blow means is operated to eject the air to the intermediate material, so that the removal of the intermediate material becomes reliable.

(Effect of the invention) Therefore, according to the present invention, from the seal plates placed in a laminated state with the intermediate member interposed therebetween, the uppermost seal plate and the intermediate member therebelow are picked up, and only the intermediate member is secured. The seal plate can be attached to the work by removing it, and the manual work of the operator is not required to remove the intermediate material, so the efficiency of the seal plate assembling work can be increased and Since the air blow is used to remove the material, it is not necessary to separately grip and remove the intermediate material with a robot hand, for example, and the configuration of the intermediate material removing means is simplified.

(Example) Hereinafter, the Example of this invention is described based on drawing.

FIG. 1 shows the overall structure of the seal plate assembly device. In this example, a gasket as a seal plate 2 shown in FIG. 2 is assembled on the upper surface of a cylinder block of an engine as a work 1. The seal plate 2 has a release paper as an intermediate material 3 every other sheet and a magazine 4 Are housed in a laminated state.

In FIG. 1, 5 is a seal plate mounting position in which a plurality of magazines 4 are arranged in parallel, 6 is an intermediate material removing position with a box 7 for containing the intermediate material 3, and 8 is a conveyor line of the work 1 by the roller conveyor 9. This is an assembly position of the seal plate 2 with respect to the work 1 provided in the above. In the case of this example, the magazines 4 at the seal plate mounting position 5, the intermediate material removing position 6 and the seal plate assembling position 8 are arranged side by side in a row, and the rails 12 supported by the columns 11 are provided above them. It is provided so as to straddle each of the above positions 5, 6 and 8, and the rail 12 is moved between the positions 5, 6 and 8 to pick up and assemble the seal plate 2 and pick up and remove the intermediate material 3. Movable member for
13 are supported.

In each magazine 4 at the seal plate mounting position 5,
Each seal plate 2 having a different shape depending on the type of the work 1 is housed together with the intermediate member 3. Magazine 4
As shown in FIG. 2, it is provided with two accommodating portions 14, 14 for accommodating the seal plate 2, and is supported so as to be movable in a direction orthogonal to the rail 12 with the guide rod 16 as a guide with respect to the base 15. Thus, the accommodating portions 14, 14 can be alternately moved to the pick-up position by the movable member 13.

Each of the accommodating portions 14 is provided with positioning rods 18, 18 for positioning and stacking the seal plate 2 and the intermediate material 3 on the mounting plate 17, and a plurality of regulating rods 19 for regulating the outer edge position of the intermediate material 3. . In the case of this example, since the seal plate 2 is a gasket, it has a bore hole 20 corresponding to the bore of the cylinder block, and holes corresponding to both ends of the intermediate material 3 are formed. The material 3 is fitted to the positioning rod 18 in the bore hole 20 and the corresponding hole. Further, walls 21, 22, 23 are provided between both ends of the placing plate 17 and the accommodating portions 14, 14, and a worker moves the magazine 4 to both ends of the placing plate 17 described above. Handles 24, 24 for are provided.

The movable member 13 is screwed onto a screw rod 25 provided along the rail 12 as shown in FIG. 1, and the screw rod 25 is transmitted to an output shaft of a motor 26 provided at the end of the rail 12. The movable member 13 is linked via a belt, and the movable member 13 is moved by the rotation of the screw rod 25 by the motor 26. The movable member 13 is provided below the movable plate 13 with an elevating plate 27 and a cylinder device 28 and a guide rod 2.
This lifting plate is supported so that it can be lifted using 9,29.
A support plate 30 is supported by 27 so as to be vertically movable.

3 to 5 specifically show the structure of the support plate 30 portion.

First, the support plate 30 is suspended from the elevating plate 27 so as to be vertically movable via a plurality of guide cylinders 32 and guide rods 33, and is urged downward by a spring 34. The support plate 30 includes four seal plate attaching / detaching tools 35, two first intermediate material attaching / detaching tools 36,
Seal plate detection rod 37, intermediate material detection rod 38, 2
Seal plate positioning pins 39, and two second intermediate material attaching / detaching tools 41 supported via brackets 40, respectively.
Is provided.

The seal plate attaching / detaching tool 35 is provided with a pad 35a at the lower end for adsorbing to the seal plate 2 by vacuuming and separating by ejecting air, and constitutes a suction means and an air blowing means for the seal plate 2. . Similarly, the first and second intermediate material attaching / detaching tools 36, 41
Also, pads 36a and 41a for similarly attaching and detaching the intermediate material 3 are provided at the lower end, and constitute a suction means and an air blow means for the intermediate material 3. In this case, the pads 36a, 41a of the intermediate material attaching / detaching tools 36, 41 project downward below the pad 35a of the seal plate attaching / detaching tool 35 at a height corresponding to the thickness of the seal plate 2. Also, the first intermediate material attaching / detaching tool
36 contacts the intermediate material 3 through the bore hole 20 located in the center of the seal plate 2, and the second intermediate material attaching / detaching tool 41 contacts the intermediate material 3 through the hole 2a at the end of the seal plate 2. Is provided. In addition, each of the above detachable tools 35, 36, 41
Are provided so as to be able to move up and down with respect to the support plate 30 or the bracket 40 while being biased downward by a spring.

Detection rod 3 for the seal plate 2 and the intermediate material 3
7,38 are penetrating through the support plate 30 and are movably suspended vertically, with respect to the magnetic bodies 42,43 provided at the upper ends of the respective detection rods 37,38, a proximity switch 44, for detecting the position thereof. 45
Are provided on the support plate 30. The seal plate positioning pin 39 has a tapered lower end formed in a conical shape, and is supported so as to be movable up and down while being urged downward by a spring with respect to the support plate 30.
Also, it can be inserted into the positioning hole at the end of the intermediate member 3.

FIG. 6 shows means (air circuit) for controlling the operation of the lifting cylinder device 28 of the lifting plate 27 and the respective attachments / detachments 35, 36, 41.

In the figure, reference numeral 51 denotes a direction switching valve which is interposed in both the ascending and descending air supply / exhaust lines of the ascending / descending cylinder device 28 and which is shifted to three positions of ascending, neutral and descending. The line is connected to the muffler 52 via the exhaust port. Further, speed control means 53, 54 by a pair of check valves with variable throttles are provided on both lines between the direction switching valve 51 and the cylinder device 28.

With respect to the four seal plate attaching / detaching tools 35 and the four intermediate material attaching / detaching tools 36, 41, the vacuum lines 55, 56 and the air blow lines 57, 58, which are branched from the air source and extend, join each other on the way. Connected. The two vacuum lines 55 and 56 have two-way directional valves 59 and 60 in order from the air source, check valves 61 and 62 with variable throttle, venturi pumps 63 and 64 with muffler, air filters 65 and 66, and vacuum gauges. 67,68 and vacuum switch 69,70 are installed. In this case, the directional control valves 59, 60 are adapted to switch between the air supply position and the air supply stop position for the venturi pumps 63, 64. Further, both the air blow lines 57, 58 extend from a directional switching valve 71 at three positions connected to an air source, and check valves 72, 73 with variable throttles are interposed in the middle thereof. The directional switching valve 71 switches between a neutral position where air supply and exhaust are shut off, an air supply position for the seal plate air blow line 57, and an air supply position for the intermediate material air blow line 58. ing. Further, the exhaust ports of the three directional control valves 59, 60, 71 are open to the atmosphere via mufflers 74, 74. Thus, the amount of air supplied by the air blow lines 57, 58 per unit time is set to be larger than the amount of air sucked by the venturi pumps 63, 64 per unit time.

 Next, the operation of the seal plate assembling device will be described.

First, when the work 1 is conveyed to the seal plate mounting position 8 by the roller conveyor 9, the movable member 13 is placed on the magazine 4 containing the seal plate 2 to be mounted on the work 1 at the seal plate mounting position 5. Be moved. Then, the lifting cylinder device 28 lowers the lifting plate 27 together with the support plate 30 by switching the direction switching valve 51 shown in FIG. 6 to the lowered position.
When it is confirmed by the detection rods 37 and 38 of the seal plate 2 and the intermediate member 3 that the seal plate attaching / detaching tool 35 has reached the seal plate 2 and the presence of the intermediate member 3, the lift cylinder device 28 has the directional control valve 51 neutral. The lowering operation is stopped by switching to the position. When reaching the above, the uppermost seal plate 2 is displaced and positioned with respect to the support plate 30 by inserting the positioning pin 39 into the positioning hole. Until this point, the directional control valves 59, 60 of the vacuum lines 55, 56 are in the air supply stop position, and the directional control valves 71 of the air blow lines 57, 58 are also in the neutral (air supply stop) position.

After that, the direction switching valves 59, 60 of the vacuum lines 55, 56
Is switched to the air supply position, and the attachment / detachment tools 35, 36, 41 adsorb the seal plate 2 and the intermediate member 3 by the action of the venturi pumps 63, 64. In this state, the lifting cylinder device 28 lifts the seal plate 2 and the intermediate material 3 via the support plate 30, and the movable member 13 moves to the intermediate material removing position 6.

At the intermediate material removing position 6, the lifting cylinder device 28 lowers the seal plate 2 and the intermediate material 3. Then, the direction switching valve 71 of the air blow lines 57 and 58 is switched to the air supply position for the intermediate material air blow line 58 for a predetermined time. As a result, the intermediate material attaching / detaching tools 36, 41 are supplied with air from the air blow line 58 while the venturi pump 64 is operating, but the air is discharged from the air blow line 58 more than the suction force of the air by the venturi pump 64. Since the force is stronger, air is ejected from the pads 36a and 41a, and the intermediate material 3 drops into the box 7.

Then, after the intermediate material 3 is removed as described above,
The direction switching valve 60 of the vacuum line 56 for intermediate material is switched to the air supply stop position, and the air blow lines 57, 5
The direction switching valve 71 of 8 is switched to the neutral position, and only the seal plate 2 is lifted by the lifting operation of the lifting cylinder device 28. Then, the movable member 13 moves to the seal plate assembling position 8, the seal plate 2 comes into contact with the work 1 by the descending operation of the lifting cylinder device 28, and the direction switching valve 71 of the air blow lines 57, 58 causes the seal plate 2 to move. After switching to the air supply position for the air blow line 57, the seal plate 2 is assembled (placed) on the work 1. After that, the supporting plate 30 is lifted by the lifting cylinder device 28, and the vacuum line 55 for the seal plate is used.
The direction switching valve 59 is switched to the air supply stop position, the direction switching valves 71 of the air blow lines 57 and 58 are switched to the neutral position, and the movable member 13 is returned to the seal plate mounting position 5.

In the above embodiment, the air blower means is operated (air supply to the air blow line) while the suction means is operated (air supply to the vacuum line) when the intermediate material 3 is removed and the seal plate 2 is assembled. I made it
The air blowing means may be operated at the same time as or after the operation of the suction means is stopped. That is, the present invention is not limited to the above embodiment,
It goes without saying that the design can be changed as appropriate without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a front view showing the entire structure of a seal plate assembling apparatus, FIG. 2 is a plan view showing a seal plate magazine, and FIG. FIG. 4 is a side view of the means, FIG. 4 is a bottom view of the means, FIG. 5 is a side view showing an intermediate material attaching / detaching tool at an end portion, and FIG. 6 is an air circuit diagram constituting the control means. 1 ... Workpiece, 2 ... Seal plate, 3 ... Intermediate material,
5 ... Seal plate mounting position, 6 ... Intermediate material removal position, 8 ... Seal plate assembly position, 13 ... Movable member,
35 …… Seal plate attachment / detachment tool, 36,41 …… Intermediate material attachment / detachment tool.

Claims (1)

(57) [Claims] 1. A seal plate mounting position at which the seal plates are mounted in a laminated state with an intermediate material interposed therebetween, a seal plate mounting position at which the seal plate is assembled to a work, and an intermediate material removal for removing the intermediate material. There is provided a movable member for moving between three positions, a first adsorption means for adsorbing the seal plate, a second adsorption means for adsorbing the intermediate material, and an air for the intermediate material. And an air blow means for ejecting air, and actuating the first and second suction means at the seal plate mounting position to suck the seal plate and the intermediate material in contact with the lower surface thereof to remove the intermediate material. At this position, the air blow means is operated to remove the intermediate material, and at the seal plate assembly position, the operation of the first suction means is stopped and the seal plate is assembled to the work. The first and second suction means, and seal plate assembly apparatus, wherein a control means for controlling the air blow means is provided.