JPH10118857A - Engine part assembling device, assembling method, and gasket feeding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately assemble engine parts into a cylinder block by stacking a gasket on an engine part, fitting part of the cylinder block then stacking the engine parts on the gasket, and providing a bolt fastening mechanism for screwing a bolt. SOLUTION: A negative pressure of an adsorption pad 26 is eliminated so that a gasket is dropped toward a cylinder block 5 along a guide rod. Secondly, a robot hand 16 is lowered, a bolt insertion hole for an oil screen 1 is passed through the top end of the guide rod, and a base part of the oil screen 1 is pushed against the cylinder block 5 direction. Thirdly, a bolt held by a nut runner 27 is inserted and screwed in the bolt fitting hole in the cylinder block 5 through the oil screen 1 and the gasket.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine part assembling apparatus, an assembling method, and a gasket supplying method used in a process of assembling an engine part into a cylinder block or the like of an engine.

[0002]

2. Description of the Related Art In an engine assembling process, for example, there is an operation of assembling an oil screen to a cylinder block. As illustrated in FIG. 18, the oil screen 1 includes a filter unit 2, a pipe unit 3, a base unit 4, and the like. Conventionally, such an operation of mounting the oil screen 1 on the cylinder block 5 is performed by turning the cylinder block 5 upside down as shown in FIG.
The gasket 7 is overlapped, the base portion 4 of the oil screen 1 is further overlaid on the gasket 7, and the two bolts 8 are screwed into the bolt mounting holes 9 with a tool such as a wrench, so that the oil screen 1 is cylinder block. 5 was fixed.

[0003]

However, the center of gravity of the oil screen 1 is fixed such that the pipe portion 3 is curved in a complicated shape and a relatively large filter portion 2 is provided at the end of the pipe portion 3. It is an unbalanced and uncomfortable part. For this reason, not only is it difficult to mount the oil screen 1 on the cylinder block 5, but also the position of the base portion 4 and the gasket 7 may be shifted with respect to the oil screen mounting portion 6 when screwing the bolt 8. It is difficult to align the bolt 8 with the bolt mounting hole 9 and insert it.
There was room for improvement in the current manual work.

[0004] Even if such an operation of assembling the oil screen 1 is mechanized, the oil screen 1 has a complicated shape and the mounting posture is unstable. It is not easy to perform an automatic automatic assembling operation with the two bolts 8 on the screen mounting portion 6. In addition, since the gasket 7 is thin and easily bent and easily adheres to each other, even if the oil screen 1 is automatically assembled by a robot or the like, the oil screen mounting portion 6 is erroneously stacked with two gaskets 7 stacked. Therefore, special consideration was required to ensure that the gaskets 7 could be taken out one by one.

Accordingly, an object of the present invention is to enable an engine part such as an oil screen having a complicated shape and an unstable mounting posture to be accurately and stably mounted on an engine part mounting portion such as a cylinder block, and a gasket. Is to be reliably supplied to the engine component mounting portion one by one.

[0006]

According to the present invention, there is provided an engine part assembling apparatus for assembling an engine part on a cylinder block of an engine, wherein the engine part includes a plurality of engine parts. A component placement unit,
A gasket arrangement portion where a plurality of gaskets are arranged,
Bolt supply means for supplying a predetermined number of component fixing bolts to the bolt arrangement portion, and engine component holding means provided on the robot hand and capable of holding the engine components,
A gasket holding means provided on the robot hand and capable of adsorbing the gasket, a means provided on the robot hand for holding a predetermined number of bolts received from the bolt arrangement portion, and a means for rotating the bolts; A gasket adsorbed by the gasket holding means is superimposed on an engine component mounting portion of the cylinder block, and then the engine component held by the engine component gripping means is superimposed on the gasket and the bolt is tightened. The engine component is fixed to the cylinder block by screwing the bolt by a mechanism.

[0007] The assembling method of the present invention comprises the steps of: inserting a guide rod into a bolt mounting hole for fixing an engine component of a cylinder block; inserting a bolt insertion hole of a gasket into the guide rod; Inserting the bolt insertion hole of the engine component into the rod and pressing the engine component against the cylinder block, extracting the guide rod from the bolt mounting hole, and attaching the component fixing bolt to the bolt insertion hole of the engine component and the gasket. Assembling the engine component to the cylinder block through the bolt insertion hole.

According to the present invention, in order to surely hold the gaskets one by one on the robot hand, a suction step of sucking and holding the gasket laminated on the gasket arranging portion with the robot hand is provided. A mounting step of lowering the suction unit, a suction step of suctioning the gasket mounted on the suction unit to the inspection table, and a lifting step of raising the robot hand again from the inspection table with the gasket being suctioned. Detecting whether a gasket remains on the inspection table, and when it is determined that the gasket remains on the inspection table, returning the gasket adsorbed to the robot hand to the gasket disposition section, Return to the inspection table, and when it is determined that no gasket remains Gasket supply method comprising an inspection step of sending the packet to the next process are also provided.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. An oil screen assembling apparatus 10 as an example of an engine component assembling apparatus shown in FIGS. 1 and 2 is provided with an oil screen disposing portion 11 in which a large number of oil screens 1 are supplied by a conveyor and a large number of gaskets 7. A gasket supply mechanism 13 having a turntable 12 and a bolt 8
A bolt supply mechanism 15 as a means for supplying a robot, a robot 17 having a robot hand 16, and an auxiliary unit 1.
8 and so on.

As shown in FIG. 2, the cylinder block 5
As shown in FIG. 18, it is transported to a predetermined position (oil screen assembly stage P1) on the pallet 21 in an upside-down posture (the oil pan side is upward), and the oil screen is held by a holding means (not shown). The assembly is restrained by the assembly stage P1.

The robot hand 16 has a chuck mechanism 25 functioning as an oil screen holding means, a gasket suction pad 26 functioning as a gasket holding means capable of sucking and releasing the gasket 7, and a pair of functions functioning as a bolt tightening mechanism. A nut runner 27 and the like are provided.

The oil screen arrangement portion 11 shown in FIG.
Is the conveyor unit 30 located on the left side in the figure.
And a slide table unit 31 located on the upper side in the figure. Conveyor unit 30 in the illustrated example
Has six rows of conveyors 32 that are parallel to each other, so that each conveyor 32 can hold an oil screen 1 corresponding to a different type of engine (an engine having a relatively large production amount).

As shown in FIG. 3 as a part of the conveyor unit 30, each conveyor 32 is formed by connecting a chain attachment 34 having a pair of pins 33 in the conveying direction of the oil screen 1. By fitting the bolt insertion holes 1a formed in the base portion 4, the oil screen 1 can be held in an upright posture. The chain attachment 34 is horizontally supported by a guide member 37. The conveyor 32 is configured to run endlessly by a sprocket 36 driven by a motor 35 to move the oil screen 1 toward an oil screen transfer position P2 (shown in FIG. 2).

The slide table unit 31 shown in FIG.
Has three rows of slide members 40 movable in the direction of arrow F1 (horizontal direction). A plurality of pairs of pins 41 are erected on each slide member 40 so that the oil screen 1 corresponding to the engine model whose production is relatively small can be held on each slide member 40 in an upright posture. Each slide member 40 can be pulled out by hand in the direction of arrow F1 so that an operator can supply the oil screen 1 to each slide member 40 as needed.

Gasket supply mechanism 13 shown in FIGS. 4 and 5
Includes a base frame 45, a turntable 12 provided on the upper surface side of the base frame 45 and functioning as a gasket arranging portion, and a gasket inspection table 46 provided near the turntable 12. Turntable 12
Is rotatable about a vertical axis 47 in a horizontal plane, and is intermittently driven by 90 degrees in the direction of arrow F2 in FIG. 5 by a drive mechanism 48 using a motor or the like. .

On the upper surface of the turntable 12, 90
A total of four gasket accumulating parts 50 are provided at equal intervals of °. Each gasket accumulating portion 50 includes a pair of gasket holding pins 51 erected in parallel with each other and a gasket reverse placement prevention pin 5 erected near the pin 51.
By inserting the bolt insertion hole 7a of the gasket 7 into the gasket holding pin 51 from above the turntable 12, a plurality (about several tens to hundreds) of gaskets 7 are stacked in the thickness direction. The gasket stacking section 50 can be stacked.

The operation of supplying the desired number of gaskets 7 to the empty gasket accumulating section 50 is performed at the gasket replenishing position P3.
(Shown in FIG. 5). Since the reverse placement prevention pin 52 is provided at a position where it interferes with the gasket 7 when the gasket 7 is set upside down, it is possible to prevent an operator from setting the gasket 7 upside down by mistake. . The 180 ° opposite side of the shaft 47 of the turntable 12 with respect to the gasket supply position P3 is the gasket transfer position P4.

The gasket inspection table 46 has a flat and horizontal inspection suction portion 55 on which the gasket 7 can be placed, and a pair of pins 56 erected on the inspection suction portion 55.
A suction hole 57 formed in the suction unit 55 for inspection; a suction port 58 communicating with the suction hole 57; and an exhaust device 59 as negative pressure generating means communicating with the suction port 58. The exhaust device 59 has a function of sucking outside air (air) from the suction hole 57. Suction hole 57 is gasket 7
It is open at a position where it can be adsorbed.

The exhaust device 59 is provided with a pressure detector 60, which detects a negative pressure acting on the suction port 58 when air is sucked from the suction hole 57, so that the gasket 7 is connected to the inspection suction portion 55. It can be determined whether or not it is adsorbed. The pair of pins 56 provided on the inspection table 46 are provided at the same pitch as the pair of gasket holding pins 51 of the gasket accumulating unit 50.

The bolt supply mechanism 15 shown in FIG. 1 and FIG.
The bolts 8 for fixing the oil screen to the cylinder block 5 are supplied to the bolt arrangement portion 14, and the bolts 8 continuously fed one by one from a commercially available vibrating parts feeder 65 or the like are arranged in a line. It has a transport guide member 66 to be aligned. This transport guide member 6
A bolt arrangement portion 14 for taking out a bolt is provided at the terminal end 66a of the cable 6. The bolt arranging part 14 includes a slide member 67 movable in the left-right direction in FIG.
And a sensor 69 for detecting a bolt.

A pair of bolt receiving holes 70 and 71 are formed in the slide member 67, and the actuator 68 moves the slide member 67 to a position where one of the bolt receiving holes 70 and the end 66a of the transport guide member 66 coincide. When the bolt 8 is inserted into the bolt receiving hole 70,
Enter. Further, the slide member 6 is moved to a position where the other bolt accommodation hole 71 and the terminal end 66a of the transport guide member 66 match.
One bolt 8 is inserted into the bolt receiving hole 71 when the 7 moves. Therefore, the two bolts 8 are held by the bolt arrangement portion 14 with the head thereof facing upward.

As shown in FIGS. 7 to 10, the robot hand 16 holds a chuck mechanism 25 for holding the oil screen 1, a gasket suction pad 26 for sucking the gasket 7, and two bolts 8. While a pair of nut runners 27 are rotated around the vertical axis.

More specifically, a frame 75 provided on the lower surface of the robot hand 16 as shown in FIG.
Is provided with a chuck mechanism 25, and the chuck mechanism 2
5, a pair of chucks 76 are provided. The chuck 76 is driven by an actuator 78 in the direction of the arrow F3 in FIG.
Is driven in the closing direction, the base portion 4 of the oil screen 1 is sandwiched and held from both sides.

As shown in FIG. 8 and the like, an oil screen pressing member 80 is provided near the chuck 76. The holding member 80 is connected to the base portion 4 of the oil screen 1.
Is made in a shape that can be pressed down from above. The holding member 80 is provided at a lower end of the lifting rod 81. The lifting rod 81 is supported by a guide cylinder 82 so as to be able to move up and down.
Is pushed in the direction of pushing down.

As shown in FIG. 9, a gasket suction pad 2 is provided below a frame 85 provided in the robot hand 16.
6 are equipped. The suction pad 26 has a suction surface large enough to suck the upper surface of the gasket 7, and a suction hole 86 is formed in the suction surface. The suction port 86 is the suction port 8
It communicates with 7. The suction port 87 is connected to an exhaust device 59 as negative pressure generating means, so that a negative pressure that overcomes the weight of the gasket 7 can be applied to the suction hole 86. The exhaust device 59 also has an air supply function that allows a small amount of air to be blown from the suction holes 86.

When the suction force of the suction hole 86 of the suction pad 26 and the suction force of the suction hole 57 of the inspection table 46 are compared, the suction force of the suction pad 26 is greater than the suction force of the inspection table 46. The gasket 7 is prevented from dropping downward by increasing the size. For example, the suction force is made different by making the opening area of the suction hole 86 of the suction pad 26 larger than the opening area of the suction hole 57 of the inspection table 46.

As shown in FIG.
A pair of right and left nut runners 27 is provided on a frame 90 provided on the sixth nut 6. Each nut runner 27 is built in a drive shaft 92 connected to an output shaft of a motor 91 functioning as a rotary drive unit, a socket member 93 that can move relative to the drive shaft 92 in the axial direction, and a socket member 93. A magnet 94 functioning as a bolt holding means, and a spring 9 for urging the socket member 93 downward.
5 and the like. When the head of the bolt 8 is inserted into the lower opening end of the socket member 93, the bolt 8 is attracted to the magnet 94.

Auxiliary unit 18 shown in FIGS. 11 and 12
Has a horizontal guide rail 101 provided on a base 100, and a slide structure 102 movable along the guide rail 101 in the direction of arrow F4 in FIG. The slide assembly 102 is reciprocated in the F4 direction by a forward / backward actuator 103 such as a fluid cylinder. The slide structure 102 is a slide base 104
And a rotating shaft 106 is supported on the sub-frame 105 in a vertical posture.

One example of the rotary shaft 106 is a ball spline, and the rotary drive actuator 1 shown in FIG.
10 allows for reciprocal rotation about the axis in the angular range of 90 ° and 180 °. The illustrated actuator 110 is formed by connecting two direct-acting fluid cylinders 111 and 112 back to back, and a pinion 114 is engaged with a rack 113 driven by the actuator 110. The pinion 114 is fixed to the rotation shaft 106. In the case of this embodiment, when only one of the cylinders 111 is operated, the rotating shaft 106 rotates 90 ° from the reference position shown in FIG. 11, and when two cylinders 111 and 112 are simultaneously operated, the rotating shaft 106 180 ° from the reference position shown in 11
It is a configuration that rotates.

An elevating drive actuator 120 using a fluid cylinder or the like is mounted on the upper part of the sub-frame 105. A horizontal member 121 is provided at an output end of the lifting drive actuator 120, and a connecting rod 122 extending downward is fixed to both ends of the horizontal member 121. An elevating base 123 is connected to a lower end of the connecting rod 122, and a roller 124 is rotatably provided on the elevating base 123. The roller 124 is configured to be able to roll into a groove 131 along the circumferential direction of a rotating body 130 that rotates integrally with the rotating shaft 106. The rotating body 130 is relatively movable in the vertical direction (axial direction) with respect to the rotating shaft 106.

As shown in FIG. 11, a support member 140 extending in the horizontal direction is fixed to the rotating body 130, and a first guide rod insertion / removal mechanism 141 for a four-cylinder engine is provided on the left side of the support member 140 in the drawing. Have been. On the right side of the support member 140 in the figure, for example, a second guide rod insertion / removal mechanism 142 for a three-cylinder engine is provided. These two
The types of guide rod insertion / removal mechanisms 141 and 142 have substantially the same structure except that the positions of a pair of guide rods 151 described later are different, and thus represent one of the guide rod insertion / removal mechanisms 141 shown in FIG. Will be explained.

The guide rod insertion / removal mechanism 141 includes a floating plate 145 provided on the support member 140.
It has. The floating plate 145 is supported movably in a horizontal direction with a slight stroke via ball rows 146 provided on both upper and lower surfaces thereof. A cylindrical holder 147 extending in the vertical direction is provided on the floating plate 145, and a push rod 148 is accommodated inside the holder 147 so as to be vertically movable. The push rod 148 is urged downward by a spring 149.

A guide rod 151 is provided below the push rod 148. Guide rod 151
Of the bolt mounting hole 9 of the cylinder block 5
It has an outer diameter and a shape that can be inserted into A groove 153 is formed in the upper part of the guide rod 151 along the circumferential direction, and the lock member 154 is engaged with the groove 153 to prevent the guide rod 151 from falling off the holder 147.

One example of the lock member 154 is a steel ball, and an operation member 155 is provided on the back side of the lock member 154. The operation member 155 can be moved by the actuator 156 from the lower position shown in FIG. 14 to the upper position shown in FIG. The inner peripheral surface of the operation member 155 has a small-diameter portion 155a located in an upper half thereof, a tapered enlarged portion 155b below the small-diameter portion 155a, and the like.

When the operating member 155 is at the lowered position with respect to the holder 147 as shown in FIG.
As a result, the lock member 154 is moved into the groove 1 of the guide rod 151.
It is pushed in the direction of entering 53 and locked. FIG.
When the operation member 155 is at the raised position with respect to the holder 147 as shown in FIG. Guide rod 1
51 is unlocked.

As shown in FIGS. 11 and 13, the oil screen support member 160 is located near the guide rod 151.
Is provided. As shown in FIG.
Reference numeral 0 denotes a shape capable of pressing down the base portion 4 of the oil screen 1 from above, and is driven in the vertical direction (the direction of arrow F5) by the actuator 161 shown in FIG. When the support member 160 is lowered, the base portion 4 of the oil screen 1 is pressed against the oil screen mounting portion 6 of the cylinder block 5.

Next, the operation of the oil screen assembling apparatus 10 having the above configuration will be described. Prior to the assembling work, the oil screen 1 corresponding to the engine model is arranged on each of the oil screen disposing portion 11 and the slide table unit 31 installed on the upper surface of the conveyor unit 30. A predetermined number of gaskets 7 are stacked on the gasket accumulating portion 50 of the turntable 12. Bolt placement part 1
The bolts 8 are held in the bolt receiving holes 70 and 71 of the No. 4 with the head thereof facing upward.

The cylinder block 5 is transported to the oil screen assembly stage P1 by a transport mechanism, and is restrained at a predetermined position by a clamp mechanism (not shown). In the assembly stage P1, the type of the cylinder block 5 is determined by an engine type determining sensor (not shown). Based on this information, the oil screen assembling operation is performed in a predetermined order by the robot 17 and the auxiliary unit 18 which have been previously taught, as described below.

First, the robot hand 16 moves to the gasket transfer position P4 of the turntable 12, and the suction pad 26 sucks the gasket 7 of the gasket accumulating portion 50 from above. In this case, only one gasket 7 is held by the robot hand 16 by performing the gasket supply operation including the gasket single sheet inspection process shown in the flowchart of FIG.

In the gasket suction step S1 shown in FIG. 17, the gasket 7 on the gasket accumulating section 50 is sucked and held by the suction pad 26 of the robot hand 16. Next, in the mounting step S2, the robot hand 16
Moves onto the gasket inspection table 46, and the robot hand 1
When the gasket 7 is lowered, the gasket 7 held by the suction pad 26 is dropped onto the suction part 55 for inspection. In this state, in the suction step S2 ', a predetermined negative pressure is applied through the suction hole provided on the gasket inspection table 46, and then the robot hand 16 is raised again in the ascending step S3, so that the inspection table 46 Gasket 7 is raised.

Then, in the inspection step S4, it is determined by the pressure detector 60 whether or not the gasket 7 remains on the inspection table 46. If the gasket 7 remains on the inspection table 46, the gasket 7 is once raised from the inspection table 46. Gasket 7 held on suction pad 26 of robot hand 16
Is returned to the gasket accumulating section 50 of the turntable 12 in the return step S5, and the process returns to the mounting step S2, and the steps S2, S3, and S4 are repeated. Inspection table 46
If no gasket 7 remains in the suction pad 26, the inspection is terminated.
Is held.

Next, the robot hand 16 picks up the oil screen 1 according to the engine model. That is, with the chuck 76 opened, the robot hand 16 descends toward the target oil screen 1 and the chuck 7
By operating in the closing direction, the base portion 4 of the oil screen 1 is sandwiched and held from both sides.
Further, as the robot hand 16 moves to the bolt arrangement portion 14 and the robot hand 16 descends, the bolt 8 is attracted and held by the magnet 94 of each nut runner 27.

On the other hand, in the auxiliary unit 18, of the two types of guide rod insertion / removal mechanisms 141 and 142, the one corresponding to the model of the cylinder block 5 is the assembly stage P
Oriented in 1 direction. Here, a case where the first guide rod insertion / removal mechanism 141 is used will be described.

Actuator 103 of auxiliary unit 18
As a result, the slide assembly 102 moves forward, and the guide rod 151 of the guide rod insertion / removal mechanism 141 is set directly above the bolt mounting hole 9 of the cylinder block 5 restrained on the pallet 21.

In this state, the guide rod insertion / extraction mechanism 141 is lowered by the actuator 120, and the guide rod 151 is inserted into the bolt mounting hole 9 as shown in FIG. At this time, the actuator 156 is
5, the lock member 154 is separated from the groove 153 of the guide rod 151 and is not restrained. Therefore, the guide rod 151 hits the cylinder block 5 and stops descending.
When 41 further descends, push rod 148 relatively rises as holder 147 descends.

After the guide rod 151 is inserted into the bolt mounting hole 9 of the cylinder block 5 as described above,
As shown in FIG. 16, when the guide rod insertion / removal mechanism 141 moves up, the guide rod 151 remains in the cylinder block 5. At this time, the push rod 148 is
9, the lock member 154 is prevented from falling off by the push rod 148.

Next, the robot hand 16 moves above the guide rod 151, and the gasket 7 adsorbed on the suction pad 26 is located right above the guide rod 151.
When the robot hand 16 descends, the bolt insertion hole 7 of the gasket 7 is formed at the upper end of the guide rod 151.
Pass a. Then, the gasket 7 is dropped toward the cylinder block 5 along the guide rod 151 by releasing the negative pressure of the suction pad 26 and blowing a little air from the suction hole 86.

Next, the oil screen 1 held by the chuck 76 of the robot hand 16 moves directly above the guide rod 151, and the robot hand 16 is lowered, so that the bolt of the oil screen 1 is inserted into the upper end of the guide rod 151. The base portion 4 of the oil screen 1 is pressed toward the cylinder block 5 by the oil screen pressing member 80 while passing through the hole 1a. After that, the robot hand 16 moves up.

When the auxiliary unit 18 advances to the assembly stage P 1 and the oil screen supporting member 160 descends, the base portion 4 of the oil screen 1 is supported by the cylinder block 5 by the supporting member 160.
Pressed to. In this state, the guide rod insertion / removal mechanism 14
The holder 147 is extrapolated to the guide rod 151 by the lowering of 1. Then, the operation member 155 is lowered by the actuator 156, and the lock member 154 is moved.
After the guide rod 151 is restrained by this, the guide rod insertion / removal mechanism 141 moves up, and the guide rod 151 is pulled out from the bolt insertion hole 9 of the cylinder block 5.

Thereafter, the guide rod insertion / removal mechanism 14 is driven by the rotation drive actuator 110 of the auxiliary unit 18.
1 is rotated 90 ° and retracted to the side, and then the robot hand 16 is moved so that the nut runner 27 is located directly above the bolt mounting hole 9, and the robot hand 16 descends, so that the nut runner The bolt 8 held by the nut 27 is inserted into the bolt mounting hole 9 of the cylinder block 5 through the oil screen 1 and the gasket 7, and the motor 91 of the nut runner 27 is rotated, so that the bolt 8 is inserted into the bolt mounting hole 9. Screwed. After the screwing is completed, the robot hand 16 returns to the initial position, and the auxiliary unit 18 also returns to the initial position.
The cylinder block 5 is carried out to the next process, and a new cylinder block 5 is carried in to the oil screen assembling stage P1, whereby the assembling process for one oil screen is completed in one cycle.

The second guide rod insertion / removal mechanism 1 of a different type, for example, by changing the model of the cylinder block 5.
If it becomes necessary to use the auxiliary unit 18
Axis of rotation 106 by actuator 110 of
By reversing the angle, the second guide rod insertion / removal mechanism 142 is directed toward the oil screen assembly stage P1.

With the above-described assembling apparatus 10, the oil screen 1 whose mounting posture is unstable can be mounted to the cylinder block 5 without any problem. Before screwing the bolt 8 into the bolt mounting hole 9, the guide rod 1
The bolt insertion hole 1a of the oil screen 1 and the bolt insertion hole 7a of the gasket 7 are
Can be accurately positioned with respect to the bolt mounting hole 9. The robot hand 16 having the suction pad 26 and the gasket inspection table 4 having the inspection suction portion 55
By performing the single-gasket take-out inspection process using the gasket 6, the gasket 7 that is thin and easily adheres to each other can be reliably supplied to the oil screen mounting portion 6.

In the above embodiment, as an example of the present invention, an apparatus for assembling an oil screen to a cylinder block and an assembling method have been described. However, a water pump, engine accessories and the like are connected to the cylinder block via a gasket. It goes without saying that the present invention can be applied to any engine component that can be mounted by mounting.

[0054]

According to the present invention, an engine component such as an oil screen having an unstable mounting posture can be assembled to an engine component mounting portion such as a cylinder block without any problem. In addition, by using the guide rod, the bolt insertion hole of the gasket and the engine part can be accurately aligned with the bolt mounting hole of the cylinder block, and the thin and flexible gasket is reliably supplied to the engine part mounting part one by one. Can be.

[Brief description of the drawings]

FIG. 1 is a plan view of an engine component assembling apparatus showing an embodiment of the present invention.

FIG. 2 is a side view of the assembling device shown in FIG. 1;

FIG. 3 is a sectional view of a conveyor used in the assembling apparatus shown in FIG. 1;

FIG. 4 is a side view of a gasket arranging portion in the assembling apparatus shown in FIG. 1;

FIG. 5 is a plan view of the gasket disposition portion shown in FIG. 4;

FIG. 6 is a plan view of a bolt arrangement portion in the assembling device shown in FIG. 1;

FIG. 7 is a front view of a chuck mechanism provided in the robot hand of the assembling apparatus shown in FIG. 1;

FIG. 8 is a side view partially showing a chuck mechanism and a nut runner of the assembling apparatus shown in FIG. 1;

FIG. 9 is a front view showing a suction pad provided on the robot hand of the assembling device shown in FIG. 1;

10 is a front view showing a part of a nut runner of the assembling device shown in FIG. 1 in a cross section.

11 is a longitudinal sectional view of the auxiliary unit of the assembling apparatus shown in FIG. 1 as viewed from the side.

12 is a longitudinal sectional view of the auxiliary unit shown in FIG. 11 as viewed from the front.

FIG. 13 is a cross-sectional view of the auxiliary unit taken along line F13-F13 in FIG. 11;

FIG. 14 is a sectional view of a guide rod insertion / removal mechanism of the assembling device shown in FIG. 1;

FIG. 15 is a sectional view showing a state in which the guide rod insertion / removal mechanism is lowered.

FIG. 16 is a sectional view showing a state in which the guide rod insertion / removal mechanism is raised.

FIG. 17 is a flowchart showing a one-piece gasket inspection process.

FIG. 18 is a perspective view showing a cylinder block and an oil screen.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Oil screen (engine parts) 4 ... Base part 5 ... Cylinder block 7 ... Gasket 8 ... Bolt 9 ... Bolt mounting hole 10 ... Oil screen assembling device 11 ... Oil screen arrangement part 12 ... Turntable (gasket arrangement part) 13 ... gasket supply mechanism 14 ... bolt arrangement part 16 ... robot hand 18 ... auxiliary unit 25 ... chuck mechanism (engine part holding means) 26 ... gasket suction pad (gasket holding means) 27 ... nut runner (bolt tightening mechanism) 46 ... gasket inspection Table 55: Inspection unit for inspection 141, 142: Guide rod insertion / removal mechanism 151: Guide rod

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takashi Egusa 5-33-8 Shiba, Minato-ku, Tokyo Inside Mitsubishi Motors Corporation (72) Inventor Yuichi Hazaki 4-2-1-1, Shimomaruko, Ota-ku, Tokyo Mitsubishi (72) Inventor Hiroyuki Funao 4-21-1, Shimomaruko, Ota-ku, Tokyo Mitsubishi Automotive Engineering Co., Ltd.

Claims (3)

[Claims] An apparatus for assembling an engine component into a cylinder block of an engine, comprising: an engine component arranging portion in which a plurality of engine components are arranged; a gasket arranging portion in which a plurality of gaskets are arranged; Bolt supply means for supplying the component fixing bolt to the bolt arrangement portion; engine component gripping means provided on the robot hand and capable of holding the engine component; and provided on the robot hand and capable of adsorbing the gasket. A gasket holding means, a means for holding a predetermined number of bolts provided on the robot hand and received from the bolt arranging part, and a bolt tightening mechanism having means for rotating the bolts; Gasket is placed on the engine block mounting part of the cylinder block. An engine part assembling apparatus, wherein the engine part held by the engine part gripping means is overlapped on the gasket and the bolt is screwed by the bolt tightening mechanism to fix the engine part to a cylinder block. 2. A method of assembling an engine component to a cylinder block of an engine, comprising: inserting a guide rod into a bolt mounting hole for fixing the engine component of the cylinder block; and inserting a gasket bolt into the guide rod. A step of inserting a hole, a step of inserting a bolt insertion hole of the engine component into the guide rod and pressing the engine component against a cylinder block, a step of pulling out the guide rod from the bolt mounting hole, and a component fixing bolt Passing through the bolt insertion hole of the engine part and the bolt insertion hole of the gasket, and assembling the engine part to the cylinder block. 3. A suction step of adsorbing and holding a gasket laminated on a gasket disposing portion to a robot hand, a mounting step of lowering the robot hand on an adsorption section of a gasket inspection table, A suction step of adsorbing the gasket to the inspection table, an ascending step of raising the robot hand again from the inspection table while adsorbing the gasket, and detecting whether or not the gasket remains on the inspection table,
When it is determined that the gasket remains on the inspection table, the gasket adsorbed by the robot hand is returned to the above-described gasket placement section, and then the process returns to the above-described placement step, and when it is determined that no gasket remains on the inspection table. An inspection step of sending the gasket adsorbed to the robot hand to the next step.