JPS63267132A - Cylinder head assembling device - Google Patents

Abstract

PURPOSE:To reduce a space required for the installation of equipment and to make the shortening of working time possible by, in the assembly line of a vehicle engine, automatically performing a serial work up to the bolting process of a cylinder head onto a cylinder block assembled body. CONSTITUTION:A gasket is set on the locating pins 6 of a pallet 4, and a cylinder head H is mounted on the gasket. A carrying device 10 lowers, and a cylinder head chucking device 21 thereby functions to firmly chuck the cylinder head H, and then a gasket supporting device 71 functions to certainly support the lower surface of the gasket. The carrying device 10 ascends hereupon, and moves over a cylinder block assembled body E, and lowers again to mount the cylinder head H on the cylinder block assembled body E. A pressing device 111 functions then to press the upper surface of the cylinder head H downward for its firm surface contact on the upper surface of a cylinder block B. Then a nut runner 121 bolts the cylinder head H onto the cylinder block B.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a cylinder head assembly device.

Particularly in the assembly line of vehicle engines, the cylinder head is transported to the cylinder book assembly, and a strong chuck is used, the gasket on the lower surface of the cylinder head is reliably supported, and the gasket on the lower surface of the cylinder head is interposed to strengthen the upper surface of the cylinder block. Prior to this, the intake hose, whose tip extends from the breather chamber attached to the side of the cylinder block and faces above the cylinder block, is reliably discharged to the side, and the cylinder head is bolted onto the cylinder block assembly. This invention relates to a cylinder head assembly device that allows a series of operations up to this point to be automatically performed using one facility.

(Prior Art) In the assembly line of vehicle engines, conventionally, a gasket is first placed on the cylinder block assembly flowing on a conveyor by a worker manually or by a robot having a chuck function, and then A worker suspends the cylinder head using a lifter device or transports it using a manipulator device and places it on the top surface of the cylinder block, and then in the next step both the cylinder block and the cylinder head are fastened together with tightening bolts.

One of the nut runner devices installed in this next step is disclosed in Japanese Patent Application Laid-Open No. 59-53133, in which bolts are fastened in a fixed order.

When the cylinder head is placed on the top surface of the cylinder block, the tip of the intake hose connected to the intake manifold, which is connected to the breather chamber attached to the side of the cylinder block, is positioned so as to cover the top of the cylinder block. Therefore, the hose had to be manually pushed out to the side by the worker.

(Problems to be Solved by the Invention) In this way, in the past, a process for transporting the cylinder head to the cylinder block assembly and a process for fastening the cylinder head to the cylinder block assembly were separately provided, and each work place was equipped with a transport device, a nut runner device, etc. In addition to increasing the size of the entire facility, the bolts must be tightened in the same order, which limits the shortening of work time and requires operators to manage each piece of equipment. .

In addition, if the gasket is placed on the top surface of the cylinder block and the hose is taken out manually, the worker must also assemble other parts to the cylinder block assembly flowing on the conveyor while placing the gasket and taking out the hose. It is necessary to pay out the amount of money, which is a tedious task.

Therefore, the purpose of the present invention is to eliminate the need for manual removal of gaskets and hoses, eliminate the need for bolt tightening order, and enable simultaneous tightening of bolts before the cylinder head is placed on the pallet. By simply setting the gasket on the cylinder head, you can use the same equipment to chuck the cylinder head while transporting it, support the gasket on the underside of the cylinder head,
Fixing the cylinder head to the cylinder block via a gasket, prior to this, discharging the intake hose that extends above the cylinder block from the breather chamber on the side of the cylinder block to the side, and bolting the cylinder block and cylinder head together. The series of operations up to this point can be performed automatically, and therefore, it is possible to simplify the parts assembly work by the operator on the cylinder block assembly that is flowing on the conveyor at a constant speed, and also to facilitate the equipment and machine management. To provide a cylinder head assembling device which can save space in equipment and shorten working time.

(Means for Solving the Problems) In order to solve the above problems and achieve the object, the present invention has a device for assembling a cylinder head H onto a cylinder block assembly E of a vehicle engine. A conveying device 10 that can move freely between the cylinder block assembly E and the cylinder head H and can be raised and lowered, and a chuck member 51 is attached from below to the flange f formed on the upper part of the opposing outer surface of the cylinder head H. A cylinder head chucking device 21 that chucks the cylinder head H by pressing the pressing member 41 against the upper surface of the flange f and chucking the cylinder head H placed on the positioning pin 6 with a gasket G laid on the lower surface. The gasket support device 71 supported together with the gasket G and the upper surface of the cylinder head H placed on the cylinder block assembly E are pressed downward to fix the gasket G on the lower surface of the cylinder head H to the upper surface of the cylinder block B. A device 111, a hose dispensing device 131 for discharging to the side an intake hose h which is connected to a breather chamber C attached to the side surface of the cylinder block B and whose tip faces above the cylinder block B, and a cylinder head mounted on the cylinder block assembly E. The nut runner device 121 is configured to fasten the bolt b for connecting the bolts H.

(Operation) First, the gasket G is set on the positioning pin 6 set up on the pallet 4, and the cylinder head H is placed on it.

Then, the conveying device 10 is lowered with respect to the cylinder head H, and the cylinder head chuck device 21 is operated, so that the flange f formed on the upper part of the opposing outer surface of the cylinder head H is
When the chuck member 51 contacts from below, the pressing member 41 comes into pressure contact with the upper surface of the flange portion f, and the cylinder head H is firmly chucked and held.

Subsequently, by operating the gasket support device 71, the lower surface of the gasket G placed under the cylinder head H on the positioning pin 6 is reliably supported.

Then, the conveying device 10 rises and travels to above the cylinder block assembly E, and descends again to place the cylinder head H on the cylinder block assembly E with the gasket G interposed on its lower surface. Prior to this, by operating the hose dispensing device 131, the intake hose h extending above the cylinder block B from the pleather chamber C on the side surface of the cylinder block B is reliably discharged outward.

Thereafter, by operating the pressing device 111, the upper surface of the cylinder head H is pressed downward, and the gasket G on the lower surface of the cylinder head H is firmly fixed to the upper surface of the cylinder block B.

Next, by the operation of the nut runner device 121, the bolt b
are tightened at the same time, thus completing the connection of the cylinder head H onto the cylinder block B.

In this way, by simply setting the gasket G before the cylinder head H is placed on the pallet 4, the cylinder head assembly device can attach the chuck and the gasket G to the lower surface of the cylinder head H as the cylinder head H is transported. support, fixation of the cylinder head H to the cylinder block B via the gasket G, and prior to this, the sideward delivery of the intake hose h extending above the cylinder block B from the breather chamber C on the side of the cylinder block B. , and a series of operations up to the bolt connection of cylinder block B and cylinder head H can be performed automatically with one piece of equipment.

This allows manual placement of gasket G and hose h.
It is no longer necessary to take out the bolts, and the order in which the bolts b are tightened is also unnecessary, allowing the bolts b to be tightened at the same time.

This simplifies the work of assembling parts by workers on the cylinder block assembly E that flows on the conveyor 1 at a constant speed, and also simplifies the management of equipment and machinery, and in particular, saves equipment space and shortens working time. is achieved.

(Example) Examples will be described below based on the accompanying drawings.

Figures 1 to 3 show the overall side, plane, and front views of the cylinder head assembling device, and Figure 4 shows the traveling mechanism and elevating mechanism of the conveying device, where 1 is a conveyor, 3 is a rail, and the conveyor 1 is A rail 3 is disposed perpendicularly to the conveyor 1, and a cylinder block assembly E is positioned and placed on a pallet 2 on the conveyor 1 via an attachment (not shown), and an attachment 5 and a positioning pin 6 are placed on the pallet 4 on the rail 3. The cylinder head H is positioned and mounted via the. The cylinder block assembly E is placed on standby along the extension line of the rail 3, and the cylinder head H is placed eight times on the pallet 4 from an eight-place device (not shown).
is advanced on the rail 3 by a drive device (not shown) and is kept at a fixed position below the assembly l1a7 as shown by the imaginary line in the drawing.

Here, as shown in FIGS. 6 and 8, a gasket G is set on a positioning pin 6 set up on a pallet 4, and a cylinder head H is placed thereon. Additionally, a flange f is formed at the upper portion of the opposing left and right outer surfaces of the cylinder head H.

The assembly $117 is installed on the machine frame 8 which is installed above the rail 3, and on the machine frame 8 there is a machine frame that moves forward and backward on the rail 9 by the engagement of a pinion 12 and a rack 13 driven by a motor 11. 14 is installed, and a slider 19 that moves up and down along a rail 15 along a rail 15 by the engagement of a pinion 17 and a rack 18 driven by a motor 16 is provided on the front surface of the machine stand 14, thereby forming a conveying device 10.

As shown in FIG. 5, the slider 19 of the conveyance device 10 includes a cylinder head chuck device 21, a gasket support device 71, a pressing device 111, and a gasket support device 71, which constitute the gripping device 20.
Furthermore, a nut runner device 121 and a positioning pin 125 are provided.

In such an assembly machine 7, the machine stand 14 is placed on standby at the retracted position of the rail 9 on the machine frame 8, and the slider 19 is placed on standby at the raised position of the rail 15 on the front side of the machine stand 14, as shown by the imaginary line in the figure. The slider 19 is lowered by the operation of the motor 16 to the cylinder head H which is waiting at a fixed position below the assembly machine 7 as shown by the imaginary line in the figure, and when the cylinder head H is gripped by the gripping device 20, the slider 19 is raised again. lift the cylinder head H from the pallet 4. Next, the machine base 14 is moved forward by the operation of the motor 11, and the cylinder head H is placed above the cylinder block assembly E, which is aligned with the extension line of the rail 3 and is waiting.
to appear.

The cylinder head chuck device 21 is as shown in FIG. 6, and a pair of first link members 22 are freely suspended from both ends of the lower part of the slider 19, and the first link members 22 have a substantially U-shape from the front. , pivot pin 23 at the top end
The slider 19 is pivotally supported at
A lever member 25 is fixedly installed at. A pair of second link members 27 are also swingably suspended between the left and right first link members 22 and at the lower intermediate portion of the slider 19.
The straight second link member 27 is also pivotally supported on the slider 19 by a pivot pin 28 at its upper end.

An extendable first drive device 31 is installed between the lever members 25 fixed to the left and right first link members 22, and the first drive device 31 is connected to a cylinder unit 32 and a bushing rod 35.
Consists of. A bushing rod 35 is connected to a piston rod 34 that is connected to a piston 33 in the cylinder unit 32, and the cylinder unit 32 is pivoted to one lever member 25 with a pivot pin 36, and the bushing rod 35 is connected to the other lever member 25. 25 via a pivot pin 37.

Further, a suppressing member 41 is swingably installed between the lower ends of the pair of left and right first link members 22 and second link members 27 by pivot pins 26 and 29, and the lower ends of the pair of suppressing members 41 is provided with an elastic body 42 that presses against the upper surface of the cylinder head flange f.

A chuck member 5 is attached to each of the left and right pressing members 41.
1 is swingably attached to the chuck members 51, and the lower ends of the pair of chuck members 51 are provided with chuck claws 52 having an abbreviated front shape that abuts the cylinder head flange f from below. That is, the engagement groove 53 formed from the upper end of the chuck member 51 is engaged with the engagement pin 43 protruding downward from the connection point a side of the pressing member 41 with the second link member 27, and the chuck member 51 and the pressing member are further engaged. Also between the members 41 are second expandable and contractible parts.
A drive device 61 is installed.

The second drive device 61 consists of a cylinder unit 62 and a bushing rod 65. The bushing rod 65 is connected to a piston rod 64 of the cylinder unit 62, the cylinder unit 62 is fixed to the pressing member 41, and the bushing rod 65 is fixed to the pressing member 41. A slider 66 that engages on the provided slide rail 44 is fixedly provided. Furthermore, slider 6
A push-up member 67 is fixedly provided on the upper surface of the chuck member 51, and the push-up member 67 contacts the inclined surface 55 of the lower surface of the inclined plate 54 fixed to the chuck member 51. Also, a spring 45 is installed between the suppressing member 41 and the chuck member 51. The chuck member 51 is urged to swing around the engagement pin 43 with respect to the pressing member 41 by the spring 45 .

In the above, the first drive device 3 before the chuck operation
The piston rod 34 of the first cylinder unit 32 is at the forward movement limit position to the left, and the piston rod 64 of the cylinder unit 62 of the left and right second drive devices 61 is at the right movement limit position, In addition, for the one on the left side, the piston rod 64 is at the leftward retraction limit position.

First, when the cylinder head H placed on the positioning pin 6 of the pallet 4 is conveyed below the chuck device 21 and placed on standby, the slider 19 of the conveyance device 2o descends and stops at a fixed position, and then the first The piston 33 of the cylinder unit 32 of the drive device 31 moves to the right to the backward limit position as shown. As a result, the piston rod 34 is recessed into the cylinder unit 32, and the distance between the pivot pin 36 at the right end of the cylinder unit 32 and the pivot pin 37 at the left end of the bushing rod 35 connected to the piston rod 34 is shortened.
Left and right lever members 25 connected to both pivot pins 36 and 37
are attracted in sync.

The lever member 25 is connected to the first link member 22 by the fixing pin 24.
Since the first link member 22 has a generally U-shaped front view, the pivot pin 2 for the slider 19
3 as a fulcrum, the pressing member 41, which is connected to the lower end of the first link member 22 by the pivot pin 26, moves in parallel in the direction toward each other and is pulled toward the second link member 22. The pivot pin 29, which forms the connection point a with the link member 27, is used as a fulcrum to swing synchronously in the direction of the arrow. Therefore, as shown in FIG. 7, the elastic body 42 at the lower end of the pressing member 41
The elastic body 42 descends while swinging synchronously in the direction of the arrow.
is in pressure contact with the upper surface of the flange f of the cylinder head H.

Here, the chuck member 51 supported by the pressing member 41 via the engagement pin 43 and the engagement groove 53 is also synchronously moved in parallel, that is, pulled in the direction toward each other, and the closing operation of the chuck member 51 is also synchronous. It will be done.

Next, the piston rod 64 of the cylinder unit 62 of the left and right second drive devices 61 and the bushing rod 65 connected thereto move to the forward limit position as shown in FIG. 6, and the slider 66 fixed to each bushing rod 65 moves forward. A push-up member 67 fixed thereto follows the inclined surface 555 and pushes up the inclined plate 54. The chuck member 51 to which the inclined plate 54 is fixedly connected to the engaging pin 4 of the pressing member 41 is biased by a spring 45 installed between the chuck member 51 and the pressing member 41.
3 as a fulcrum and swings in the two directions of the arrow, and rises in the width direction of the arrow along the engagement groove 53 engaged with the engagement pin 43 due to the pushing up action. Therefore, as shown in FIG.
While both swing in the two directions of the arrow, they rise in the width direction of the arrow,
The chuck claw 52 comes into contact with the cylinder head flange f from below.

When the cylinder head H is thus chucked by sandwiching the left and right flanges f between the pressing member 41 and the chuck claws 51 from above and below, the pressing device 111 is subsequently activated.

The pressing device 111 is provided before and after the slider 19 as shown in FIG. 11
An elastic body 116 is provided at the tip of 5, and 117 is a guide rod.

In such a pressing device 111, when the piston rod 114 is protruded by the operation of the cylinder unit 113, the pressing member 115 is lowered and the elastic body 116 at the tip presses the upper surface of the Rad H against the cylinder.

When the cylinder head H is transferred onto the cylinder block assembly E by the assembling machine 7, the gasket G laid on the upper and lower surfaces of the cylinder on the pallet 4 is moved by the operation of the gasket support device 71 installed on the slider 19. support will be provided.

That is, the gasket support device 71 is attached to the front and rear of the slider 19, and as shown in FIG. A pair of first link members 76 are swingably suspended, and a pair of second link members 82 are swingably suspended between the first link members 76 at the bottom of the base plate 72 via pivot pins 81. It's lowered. A pair of left and right first link members 76 and second link members 8
A third link member 85 is installed between the lower ends of the two members using pivot pins 83 and 84, and the pair of third link members 85 are arranged horizontally and can be moved in parallel in eight directions. Furthermore, support arms 87 are swingably supported below the third link member 85 via pivot pins 86, and rod-shaped support members 88 are integrally provided at the tips of the pair of support arms 87. There is.

A driving device 91 disposed outside the first link member 76 is installed between the support arm 87 and the base plate 72. The drive device 91 includes a cylinder unit 92 that projects outward from a base plate 72 and a piston rod 93 that projects below the cylinder unit 92.
, an intermediate link 95 pivotally supported at its lower end via a pivot pin 94, and an elevating rod 97 connected to its lower end via a pivot pin 96. A horizontal bar 101 is fixed to the lower end of the lifting rod 97, and a vertical bar 103 is attached to the tip of the horizontal bar 101.
is fixed to hang down, and the rear end of a support arm 87 is fixed to the lower end thereof. Further, the lifting rod 97 is connected to the first link member 7.
A compression coil spring 98 which is attached to the upper circumference of the lifting rod 97 is compressed and passed through the vertical hole 77 of No. 6 and between the upper surface of the circumference of the vertical hole 77 and the lower surface of the intermediate link 95.

In addition, a guide pin 102 installed on the middle part of the horizontal par 101
is inserted into the guide hole 78 of the first link member 76 , and a stopper pin 89 is provided on the rear side of the support arm 87 to abut against the lower surface of the third link member 85 . A stopper piece 79 that comes into contact with the stopper piece 74 at the lower end is provided.

In the above, before supporting the gasket, the drive device 9
The piston rod 93 is retracted into the cylinder unit 92 of 1, and the pair of left and right link members 76, 82, 85 and the support arm 87 are held in an outwardly expanded position as shown by the imaginary lines in the figure. There is. At this time, the stopper pin 89 on the support arm 87 is in contact with the lower surface of the third link member 85.

Since the gasket support device 71 is configured in this way, when the cylinder head H is transferred onto the cylinder block assembly E by the assembling machine 7, the pallet 4 is held at a fixed position below the assembling machine 7 as described above. The gasket G placed on the lower surface of the upper cylinder head H can be automatically supported.

First, the details of the gripping of the cylinder head H by the gripping device 20 are as follows: The positioning pin 125 of the gripping device 20 is inserted into a positioning hole (not shown) previously drilled in the upper surface of the cylinder head H by the operation of the cylinder unit 126, and the cylinder head is As the position of H is determined, the socket 122 of the nut runner device 121 is lowered and fitted into the bolt b2, which is a fluid insert, in the cylinder head H in advance.

Then, as described above, the flange f of the cylinder head H is chucked by the chuck device 21, and then the pressing device 11
1 presses the upper surface of the cylinder head H, the gasket support device 71 is activated.

That is, by operating the left and right drive devices 91, the cylinder unit 9
2, the lifting rod 97 connected to the lower end of the piston rod 93 via the pivot pin 94, the intermediate link 95, and the pivot pin 96 passes through the vertical hole 77 of the first link member 76. Therefore, the lifting rod 97 descends along the vertical hole 77.

When the elevating roller 97 descends, a support arm 8 is attached to the lower end of the elevating wand 9 via a horizontal par 101 and a vertical bar 103.
7 are integrally connected, the support arm 87 is connected to the third
It swings about a pivot pin 86 with a link member 85 as a fulcrum. At this time, the guide pin 102 on the horizontal par 101 also moves down inside the guide hole 78 of the first link member 76.

At the same time, a compression coil spring 98 attached to the upper circumference of the lifting rod 97 is compressed between the upper surface of the circumference of the vertical hole 77 of the first link member 76 and the lower surface of the intermediate link 95. Depending on the force, the first
The link member 76 swings toward the cylinder head H using the pivot pin 75 connected to the base plate 72 as a fulcrum, and the stopper piece 79 of the first link member 76 comes into contact with the stopper piece 74 of the base plate 72 . When the first link member 76 swings, the second link member 8
2 is the pivot pin 83, the third link member 85 and the pivot pin 8
Since it is connected to the first link member 76 via 4,
The second link member 82 also swings in synchronization.

Therefore, the third link member 85 and the support arm 87 are parallel to each other.
The support member 88 provided at the tip of the support arm 87 advances from the side against the lower surface of the gasket G placed under the cylinder head H on the positioning pin 6, and the support member 88 is brought into contact with the lower surface of the gasket G. becomes.

When the gasket G on the lower surface of the cylinder head H is chucked together with the cylinder head H, the slider 19 of the assembling machine 7 rises as described above, and the cylinder head H and the gasket G are
is lifted from the pallet 4, the machine base 14 moves forward, and the cylinder head H is exposed above the cylinder block assembly E.
The slider 19 descends again and the cylinder block assembly E
The cylinder head H is placed on top of the nut runner device 1.
The required bolts b are fastened by the sockets 122 of 21, and the cylinder head H is assembled to the cylinder block assembly E with the gasket G interposed therebetween.

Here, as shown in FIG. 11, a breather chamber C is attached in advance to one side of the cylinder block B of the cylinder block assembly E, and the tip of the intake hose h connected to the upper surface of this breather chamber C is connected to the cylinder block B. It is placed so that it covers the top. Furthermore, a throttle body T, a carburetor C, etc. are attached in advance to one side of the cylinder head H between the intake manifold.

Hose dispensing device 1 installed on the front of the machine frame 8
31, the intake hose h is automatically discharged from the upper surface of the cylinder block B.

That is, the hose dispensing device 131 is attached to the front surface of the machine frame 8, and as shown in FIGS. 9 and 10, a bracket 133 is fixedly installed on the front surface of the machine frame 8. via the first arm member 13
5 is pivotably supported. This first arm member 135
is arranged parallel to the conveyor 1, extends substantially perpendicularly to the side surface of the cylinder block B to which the breather chamber C is attached, and has an oval shape when viewed from the front.

Further, a second arm member 138 is swingably connected to the distal end of the first arm member 135 via a vertical pivot pin 137, and a connecting tool 14 is attached to the distal end of the second arm member 138.
A round bar-shaped dispensing member 142 that can pivot above the cylinder block B via the cylinder block B is integrally provided.

Further, a first drive device 143 is installed between the second arm member 138 and the first arm member 135, and this first drive device 143 moves the cylinder unit 144 to the first arm member 135.
35 with a vertical pivot pin 146, and the piston rod 145 is pivoted with a vertical pivot pin 147 on a lever part 139 provided at the base end of the second arm member 138. It consists of

The first drive device 143 includes a cylinder unit 144.
Due to the expansion and contraction operation, the posture of the second arm member 138 is changed from the position S2, which coincides with the extension line of the first arm member 135 shown by the imaginary line, as shown by arrow A, and the intake hose h is moved by the dispensing member 142, which is also shown by the imaginary line. Rotate 90° to the first stage payout position ■.

Further, a second drive device 151 is installed between the bracket 133 and the first arm member 135, and this second drive device 1
51 has two cylinder units 152 and 155, and the cylinder unit 152 is pivotally supported on the bracket 133 by a horizontal pivot pin 154.
is pivotally supported by a horizontal pivot pin 157 on a lever part 136 provided at the base end of the first arm member 135, and both piston rods 153 and 156 are connected by a joint 158.

Further, a tension coil spring 159 for return is tensioned between the bracket 133 and the lever portion 136 at the base end of the first arm member 135.

Such a second drive device 151 first changes the posture of the first arm member 135 from the first stage dispensing position I by extending and contracting the one cylinder unit 152 further downward and outward as shown by the solid line. A slight swing operation is performed to the second stage dispensing position 11 shown by , and then a large swing operation is performed as indicated by the arrow to the evacuation position e shown by the imaginary line by the expansion/contraction operation of the other cylinder unit 155 .

In the above, before the hose is discharged, the piston rod 145 is retracted into the cylinder unit 144 of the first drive device 143, and the posture of the second arm member 138 is initially aligned with the extension line of the first arm member 135. It is held at position s2.

Also, the second drive device 1510 and both cylinder units 152.
The piston rods 153 and 156 are in the retracted state in the 155, and the i force of the first arm member 135 is in the second stage dispensing position in the horizontal state! It is held at the same initial position sl as the first stage dispensing position (2), which is slightly tilted upward from (2).

- Since the hose dispensing device 131 is configured in this way,
With the cylinder head H waiting above the cylinder block assembly E as described above, the intake hose h can be automatically discharged from the upper surface of the cylinder block B.

That is, first, when the first drive device 143 is actuated to cause the piston rod 145 to protrude from the cylinder unit 144, the second drive device 143 is activated.
The arm member 138 swings around the pivot pin 137 with the first arm member 135, and moves from the initial position S2 in the direction of arrow A by 9.
It rotates by 0° and reaches the first stage dispensing position I, and the dispensing member 142 at the tip of the second arm member 138 dispenses the intake hose h slightly to the side from above the cylinder block B.

Subsequently, when the second drive device 151 is activated and the piston rod 153 protrudes from one cylinder unit 152,
The first arm member 135 swings around the pivot pin 134 of the bracket 133 integrated with the base 132, and is moved to the initial position S1.
From the first stage dispensing position I, which is similar to , and pay out downward.

When the intake hose h is discharged in this way, the cylinder head H is lowered by the assembling machine 7 and placed on the cylinder block assembly E, and the chuck member 5 of the chuck device 21 is
1 is released, and the cylinder head H is released from the gasket G by the pressing member 41 of the chuck device 21 and the pressing member 115 of the pressing device 111.
It is firmly fixed onto the cylinder block B with the

Here, the cylinder head H is lowered in a two-stage motion. That is, by temporarily stopping the servo mechanism of the lifting motor 16 (load applied to the servo motor), it is possible to check whether the stud bolt b1 raised on the cylinder block assembly E has been inserted slightly into the cylinder head H. It is detected by the robot and then lowered again to be assembled. This prevents bending of the stud bolt b1 and damage to the cylinder head H.

Subsequently, the bolts bl and b2 are fastened by the socket 122 of the nut runner device 121, and the cylinder head H is assembled to the cylinder block assembly E.

After that, the assembly machine 7 returns to the initial standby position.

After the assembly is completed, the hose dispensing device 131
The piston rod 156 protrudes from the other cylinder unit 155 of the drive device 151, and the first arm member 135 swings further in the direction of the arrow from the second stage dispensing position ir to reach the retreat position e.

Subsequently, the piston rod 145 is re-inserted into the cylinder unit 144 of the first drive device 143, and the second arm member 138 is pivoted again by 90'' in the two directions of the arrows, and is aligned with the extension line of the first arm member 135. Become.

When the dispensing member 142 is retracted from above the conveyor 1 in the traveling direction of the cylinder block assembly E, both cylinder units 152 of the second drive device 151
, 155, and the first arm member 135 returns to the initial position s1 with tension bias from the coil spring 159, and thereby the second arm member 138 also returns to the initial position s2. do.

(Effects of the Invention) As described above, according to the present invention, by simply setting the gasket before the cylinder head is placed on the pallet, it is possible to attach the cylinder head to the cylinder book assembly using one facility. Transport and strong chuck, reliable support of the gasket on the lower surface of the cylinder head, strong fixation of the lower surface of the cylinder head to the upper surface of the cylinder block through the interposition of the gasket, and the extension from the breather chamber attached to the side of the cylinder block prior to this. A series of operations such as reliably discharging the intake hose whose tip faces above the cylinder block to the side and bolting the cylinder head onto the cylinder block assembly can be performed automatically.

This eliminates the need to manually place gaskets or take out hoses, and also eliminates the need for bolt tightening order, allowing bolts to be tightened simultaneously.

Therefore, it is possible to simplify the work of assembling parts by workers on the cylinder block assembly that flows on the conveyor at a constant speed, and to facilitate the management of equipment and machinery.In particular, it is possible to save space for equipment and shorten working time. can also be achieved at the same time.

[Brief explanation of drawings]

1 to 3 are an overall side view, a plan view, and a front view of the cylinder head assembly device of the present invention, FIG. 4 is a schematic plan view showing the traveling mechanism and elevating mechanism of the conveying device, and FIG. 5 are enlarged side views of various devices, FIG. 6 is an enlarged front view of the cylinder head chuck device, FIG. 7 is an explanatory diagram showing the movement of the chuck part, FIG. 8 is an enlarged front view of the gasket support device,
9 and 10 are an enlarged plan view and a front view of the hose dispensing device, and FIG. 11 is an enlarged exploded front view of the cylinder block assembly, cylinder head, and accessories. In the drawings, 1 is a conveyor, 2 is a pallet, 3 is a rail, 4 is a pallet, 6 is a positioning pin, 7 is an assembly machine, 8 is a machine frame, 14 is a machine stand, 19 is a slider, and 10 is a conveyance device ,
20 is a gripping device, 21 is a cylinder head chuck device,
41 is a pressing member, 51 is a chuck member, 1 is a gasket support device, 87 is a support arm, 111 is a pressing device, 1
15 is a pressing member, 121 is a nut runner device, 125 is a positioning pin, 131 is a hose dispensing device, 142
is a discharge member, E is a cylinder block assembly, B is a cylinder block, C is a breather chamber, h is an intake hose, H is a cylinder head, f is a flange, and G is a gasket.

Claims (1)

[Scope of Claims] A device for assembling a cylinder head onto a cylinder block assembly of a vehicle engine, the conveyance being movable and movable up and down between the cylinder block assembly and the cylinder head, both of which are positioned and on standby. a cylinder head chuck device that chucks the cylinder head by abutting a chuck member from below against a flange formed on the upper part of the opposing outer surface of the cylinder head and pressing a pressing member against the upper surface of the flange; A gasket support device supports a cylinder head placed on a positioning pin with a gasket placed on it together with a gasket on the lower surface, and a gasket support device that supports the cylinder head placed on a positioning pin with a gasket on the lower surface, and a gasket support device that presses the upper surface of the cylinder head placed on a cylinder block assembly downward to lower the lower surface of the cylinder head. A pressing device that attaches the gasket to the top surface of the cylinder block, a hose dispensing device that dispenses an intake hose connected to a breather chamber attached to the side of the cylinder block and whose tip faces above the cylinder block to the side, and a cylinder block assembly. A cylinder head assembly device comprising: a nut runner device for fastening bolts to connect a cylinder head thereon;