KR100828793B1 - Valve mechanism assembly device of vehicle engine - Google Patents

Abstract

The present invention relates to an apparatus for assembling parts for valve fixing in a cylinder head intake and exhaust valve automatic assembly process of an engine assembly line.

The present invention improves the jamming problem during valve lock distribution, adjusts index time, secures a large number of index split points, minimizes noise and shortens supply time by applying a belt conveyor and double row supply, thereby reducing the occurrence of line errors. It provides a valve mechanism assembly device for a vehicle engine which can be reduced and, consequently, a productivity improvement by shortening a cycle time.

Description

An apparatus for assembling valve in vehicle engine

1 is an exploded perspective view showing a valve mechanism of a vehicle engine

Figure 2 is a schematic plan view showing a valve mechanism assembly device according to an embodiment of the present invention

Figure 3 is a front view showing the valve lock distribution unit in the valve mechanism assembly apparatus according to an embodiment of the present invention

Figure 4 is a plan view showing an index unit in the valve mechanism assembly apparatus according to an embodiment of the present invention

Figure 5 is a front view showing a detection unit in the valve mechanism assembly apparatus according to an embodiment of the present invention

Figure 6 is a front view showing a failure discharge unit in the valve mechanism assembly apparatus according to an embodiment of the present invention

7 is a plan view showing a supply unit in the valve mechanism assembly apparatus according to an embodiment of the present invention

8 is a flow chart showing the overall process flow of the valve mechanism assembly apparatus according to an embodiment of the present invention

<Description of the symbols for the main parts of the drawings>

10: Part feeder for retainer 11: Retainer supply unit

12a, 12b: Valve feeder part feeder 13a, 13b: chute

14: valve lock distribution unit 15: detection unit

16: defective discharge unit 17: supply unit

18: index unit 19: dispensing robot

20: stopper device 21a, 21b: escape cylinder

22: lower lift jig 23: linkage

24: stopper 25: hinge portion

26 link member 27 chute block

28: Spring 29: Index Table

30: index groove 31: up-down cylinder

32: beam sensor 33: bad discharge cylinder

34: Pusher 35: Loading Plate

36: pusher device 37: supply line

38: shift cylinder 39: push rod

The present invention relates to a device for assembling parts for valve fixing in a cylinder head intake / exhaust valve automatic assembly process of an engine assembly line. It is possible to change the rotation speed of the index unit and to secure a sufficient division point, and to implement a new type of assembly device that can secure the quantity due to the double-row supply of the supply unit, thereby preventing the occurrence of process errors and increasing the operation rate of the assembly line. An apparatus for assembling a valve mechanism of a vehicle engine that can improve and ultimately improve productivity.

In general, a cycle engine has four strokes: the operation of the piston and the suction, compression, explosion, and exhaust by the mixed gas.

In this four stroke, the combustion chamber is connected to the outside of the cylinder in the intake and exhaust strokes, and in the compression and explosion strokes, it must be completely enclosed.

In this way, the valve that acts as a seal between the cylinder and the outside is a component called a valve. The mechanism that opens and closes the valve precisely to match the engine rotation is called a valve mechanism or a valve system.

As shown in Figure 1, the normal valve 100 is like the shape of the head of the mushroom upside down.

A part called the valve surface is inserted into the cylinder head and in close contact with the valve seat to maintain a tight seal in the combustion chamber.

The valve includes an intake valve through which the mixer is sucked in and an exhaust valve through which the combustion chamber exhaust gas is discharged.

Usually, the diameter of the intake valve is large, but in recent years, pluralization of the valve is popular, and the three-valve system of "suction 2 and exhaust 1" and the four-valve system of "suction 2 and exhaust 2" occupy a large number.

Therefore, a four cylinder engine with four valves per cylinder is called a 16 valve.

Briefly describing the mounting state of the valve, the valve is always pressed by the force of the spring 110 to the closed side.

The spring is fitted to the upper retainer 120 and the lower spring seat 130 and is fixed by the split valve lock 140.

Such a valve mechanism is assembled in an automated system, for example, the process of automatically supplying the valve lock and the retainer through a part feeder, the process of assembling the valve lock and the retainer, the dividing process by the index, the defect detection and the discharge process. It is assembled into an automated system including a process of supplying the assembled valve lock / retainer.

In the present invention, a valve mechanism assembly apparatus for performing the process from the supply of the valve lock and the retainer to the discharge process for assembly with the valve side after assembly is the object of the designation.

However, the conventional valve mechanism assembly device has the following problems.

First, a set of valve locks supplied to the part feeder is automatically supplied to the retainer side of the jig through the operation of the link operated by the escaper cylinder, where the operation time is not matched with the jig of the escaper cylinder and the lower jig. Im phenomena occur frequently.

Second, in the case of the index unit, index time adjustment is impossible, and there are not enough index splitting points of 4 to 6 points, and there is a problem that pinching occurs in the case of defective discharge.

Third, when the retainer and the valve lock arrive at the detection area, the upper and lower cylinders operate, and the three touch bars mounted on the front side detect the reverse and mounting failure of the valve lock. When the touch bar detects the valve lock, there is a problem that an error frequently occurs due to a malfunction when the touch bar detects the valve lock and the pinch during index rotation after the detection.

Fourth, in the case of the supply unit, there is a problem that the alignment state is disturbed due to lack of quantity due to adiabatic supply and vibration of the line feeder.

Accordingly, the present invention has been made in view of the above-mentioned problem, and improves the jamming problem in dispensing the valve lock, adjusts the index time, secures a large number of index splitting points, and minimizes noise by applying a belt conveyor and reheating. And by shortening the supply time, it is an object to provide a valve mechanism assembly device for a vehicle engine that can reduce the occurrence of errors in the line and can be expected to improve productivity by reducing the cycle time.

The present invention for achieving the above object is a retainer supply unit for supplying the retainer through the part feeder for the retainer, and is positioned with a 90 ° phase difference with the retainer supply unit and the valve through the chute from the upper two valve lock part feeder A valve lock distribution unit for supplying a lock, a detection unit positioned at a 90 ° phase difference with the valve lock distribution unit and detecting a combination state of the retainer and the valve lock by a beam sensing method, and a 90 ° phase value with the detection unit It is located in the center of the discharge unit and the discharge unit for discharging the defective product by using the cylinder, and the retainer supply unit, valve lock distribution unit, detection unit and the defective discharge unit is disposed in the rotational method of retainer and retainer + valve When the lock is transferred to each unit and finally discharged to the supply unit side And a supply unit for discharging the retainer and the valve lock connected to the conveying means extending from the discharge side of the index unit to the dispensing robot side.

In addition, the detection unit is composed of an upper up-down cylinder and a plurality of beam sensors mounted on the rod of the up-down cylinder, so that it is possible to detect the reverse insertion and mounting failure of the valve lock in an indirect manner without contacting the valve lock. It is characterized by.

The defective discharge unit is characterized in that the defective product is discharged using the pusher of the defective discharge cylinder which is horizontally installed on one side of the index unit.

In addition, two valve lock part feeders in the upper portion, a chute having a left-right symmetry extending downwardly inclined at an angle from the discharge side of the valve lock part feeder, and provided on a section of the chute to control the progress of the valve lock Valve lock consisting of an escaper cylinder for advancing the lock one by one, and a linkage device which is installed at the lower end of the chute and interlocks with the lower lift jig in which the retainer is seated so that two valve locks can be combined with the retainer at the same time. And a dispensing unit.

In addition, the linkage device is composed of a pair of left and right, assigned to each chute one, the link member having a stopper to enter the chute and rotatably installed through the hinge portion in contact with the lower lift jig, and in the groove in the chute block It is characterized in that it comprises a spring supporting the top of the link member to the other side while being supported.

In addition, it consists of an index table driven by a motor and an index groove formed in an eight-segment form along the outer periphery of the index table to transfer the retainer and the retainer + valve lock to each unit, and finally discharge them to the supply unit side. The note is characterized by including an index unit.

In addition, a loading plate loaded with the retainer and valve lock assembly discharged from the index unit for supplying the retainer and the valve lock assembly, and each pusher device are arranged side by side in two rows, and the retainer and valve lock assembly is moved to the dispensing robot side. A belt conveyor supply line for discharging, a shift cylinder for distributing the retainer and valve lock assembly on the loading plate to each supply line, and one retainer and valve lock assembly supplied through the supply line are installed in the dispensing robot. It characterized in that it comprises a supply unit consisting of a stopper device.

Hereinafter, with reference to the accompanying drawings will be described in detail the valve mechanism assembly according to an embodiment of the present invention.

Figure 2 is a schematic plan view showing a valve mechanism assembly apparatus according to an embodiment of the present invention.

As shown in Fig. 2, the overall layout of the valve mechanism assembly apparatus is shown here.

The retainer supply unit 11 is arranged in the 0 ° direction with the index unit 18 in the center as the center, and the valve lock distribution unit 14 is disposed in the 90 ° direction, and the detection unit (in the 180 ° direction). 15) is disposed, the defective discharge unit 16 is disposed in the 225 ° direction, and the retainer and the valve lock assembly are finally discharged in the 270 ° direction, while the retainer and valve lock assembly discharge side is directed to the supply unit 17 side. At the same time, the retainer and valve lock assembly via the supply unit 17 are mounted in the dispensing robot 19 to proceed to the next process.

Here, in the case of the retainer supply unit 11, the retainer in the retainer part feeder 10 may be supplied to the index table by using a transfer means such as a line feeder or a belt conveyor extending to the front index unit 18. In the case of the valve lock dispensing unit 14, a chute which extends the valve locks in the two valve lock part feeders 12a and 12b disposed on the upper part to the index unit 18 below is used. It can also supply index tables.

Further, in the discharge section of the index unit 18, a conveying means such as a line feeder or a belt conveyor, in which the retainer and the valve lock assembly on the index table extend to the supply unit 17 side via a push means operated by a cylinder means. The unloading process proceeds.

Figure 3 is a front view showing the valve lock distribution unit in the valve mechanism assembly apparatus according to an embodiment of the present invention.

As shown in Fig. 3, the valve lock distribution unit main body has two chutes 13a and 13b extending downwardly inclined at a predetermined angle from the two valve lock part feeders 12a and 12b provided thereon. It is installed in a symmetrical form, and the bottom outlet of each chute (13a), (13b) at this time is a form that meets in one place, accordingly two valve locks falling down along each chute (13a), (13b) Can be combined in one retainer located below.

Escape cylinders 21a and 21b are installed at appropriate positions among the sections of the chute 13a and 13b, and the escape cylinders 21a and 21b are chute passages using a stopper means on the rod. It is possible to send down the valve lock one by one through its forward and backward movements.

In particular, the valve lock dispensing unit 14 includes a means capable of simultaneously seating two valve locks in the retainer, i.e., a link device 23, and the application of the link device 23 results in a time difference between the two valve locks. Since it can be seated in the retainer at the same time, it is possible to completely eliminate the jamming problem as before.

To this end, one side of the lower outlet of the chute 13a, 13b has a "b" shaped link member 26 is installed on the chute block 27 in a rotatable structure by the hinge portion 25 is located The front end of the link member 26 is formed with a stopper 24 extending in the front and positioned in the chute. The upper end of the link member 26 is interposed between the chute block 27 and the spring 28. Is elastically supported.

Accordingly, when the lower lift jig 22 at the lower side of the retainer and the valve lock combination is raised, the retainer on the index table 29 is seated on the jig, and at the same time, the push rod (in the lower lift jig 22) 39 pushes up the rear end of the link member 26, and the link member 26 continues to rotate about the hinge portion 25, so that both ends of the link member 26 are caught by the stopper 24. The two valve locks fall down simultaneously, allowing them to enter the retainer.

That is, the valve lock supplied to the part feeder is supplied one by one when the escape cylinder is operated, and is supplied to the retainer seated on the lower lift jig by the operation of the linkage device.

At this time, since the link device is opened at the same time by the operation of the push rod integrated with the lower lift jig to supply the valve lock, it is possible to completely eliminate the supply error and jamming problem due to time mismatch as before.

Figure 4 is a plan view showing an index unit in the valve mechanism assembly apparatus according to an embodiment of the present invention.

As shown in FIG. 4, the index unit 18 includes an index table 29 driven by an NC motor. In this case, the outer periphery of the index table 29 includes an index groove portion 30 having an eight-part type; That is, eight index groove portions 30 are formed at 45 ° intervals.

Accordingly, the retainer itself or the combined retainer valve lock is seated in the index groove 30, and each unit sequentially connected by the rotation of the index table 29, for example, the valve lock supply unit, the detection unit, and the defective discharge. It can then be routed through the unit to the final discharge section.

In the case of such an index unit 18, since the index time can be easily adjusted by controlling the NC motor, it is possible to proactively cope with changing the working conditions such as the amount of work, and has a large division point of 8 divisions. Therefore, a sufficient space or space between peripheral units can be secured, thereby making it easier to take measures, repair, and check in the event of an error.

Figure 5 is a front view showing a detection unit in the valve mechanism assembly apparatus according to an embodiment of the present invention.

As shown in FIG. 5, the detection unit 15 is a portion for detecting a combination state of a retainer and a valve lock, and includes an up-down cylinder 31 provided at an upper portion thereof, a beam sensor 32 mounted on a rod thereof, and the like. It includes.

In other words, when it reaches the detection area with the retainer and valve lock in combination, the up-down cylinder operates, and four beam sensors mounted on the rod detect the valve lock reverse direction and mounting failure. Eject out from.

At this time, since the beam sensor detects the valve lock in an indirect manner without directly touching, the pinch and error do not occur at all.

Here, a method of adjusting the index time by controlling the NC motor, a method of detecting a defective product by a beam sensor, and the like may be adopted without particular limitation as long as it is a method commonly known in the art.

6 is a front view showing a failure discharge unit in the valve mechanism assembly apparatus according to an embodiment of the present invention.

As shown in FIG. 6, the defective discharge unit 16 is a portion for discharging defective products in accordance with the detection unit 15, and the defective discharge cylinder 33 is provided horizontally on one side of the index unit 18. As shown in FIG. ), The discharge of defective products is made.

That is, when the defective discharge cylinder 33 is operated, the pusher 34 located on the track of the retainer + valve lock in the index table 29 can pull the defective retainer + valve lock out of the table.

In the case of such a bad discharge unit, unlike the conventional one is installed separately from the detection unit it is possible to reduce the occurrence of errors such as jamming due to interference.

7 is a plan view showing a supply unit in the valve mechanism assembly apparatus according to an embodiment of the present invention.

As shown in FIG. 7, the supply unit 17 is a portion for transferring the retainer + valve lock to which the combination is completed to the dispensing robot 19 side for the next fixing, and the discharge side of the index unit 18. The retainer + valve lock is transferred between the distribution robots 19 by a double heat supply method.

To this end, a loading plate 35 for loading the retainer and valve lock assembly discharged from the index unit 18 is provided, and two rows of supply lines 27 between the loading plate 35 and the distribution robot 19. These are provided side by side, and the retainer and the valve lock assembly are provided on the dispensing robot 19 side in two rows, whereby the quantity to be supplied can be sufficiently secured.

The retainer and valve lock assembly conveyed to the loading plate 35 by a conveying means such as a line feeder can be properly distributed to each supply line 37 by the reciprocating motion of the shift cylinder 38, and each supply line The retainer and valve lock assembly distributed to (37) is sent onto the belt conveyor feed line (37) by the pusher device 36 installed in each supply line (37), and finally the retainer and valve lock assembly. After being mounted in the dispensing robot 19 in turn by the stopper device 20 can proceed to the next process.

The overall process flow for the valve mechanism assembly of the present invention configured as described above can be seen in detail in FIG. 8.

That is, the retainer is supplied as the line feeder type, the valve lock is supplied as the link type, and the detection and bad discharge process is sequentially performed by rotating the index after combining the retainer and the valve lock. You can see how the valve lock assembly is supplied.

As described above, the valve mechanism assembly device provided in the present invention has the following advantages.

First, it is possible to reduce the line error by improving the pinch during valve lock distribution.

Second, the index time can be easily adjusted and the index splitting point can be sufficiently secured.

Third, it is easy to repair and secure the jamming by separating the discharge position by securing the space of the index unit.

Fourth, in the case of the supply unit by applying a belt conveyor can reduce the supply time and minimize the noise.

Claims (7)

A retainer supply unit 11 for supplying a retainer through the retainer part feeder 10, and is positioned with a 90 ° phase difference from the retainer supply unit 11, and the upper two valve lock part feeders 12a, ( 12b) and a valve lock distribution unit 14 for supplying a valve lock from the chute 13a, 13b through the chute 13a, 13b, and having a 90 ° phase difference with the valve lock distribution unit 14, A detection unit 15 for detecting a combined state of the valve lock, a defect discharge unit 16 positioned at a 90 ° phase with the detection unit 15 and discharging defective products using a cylinder, and the retainer supply Unit 11, valve lock distribution unit 14, detection unit 15 and defective discharge unit 16 are arranged in the center of the transfer to retainer and retainer + valve lock to each unit and finally Supply unit Index unit 18 for discharging to the side (17), and a supply unit for discharging retainers and valve locks connected and assembled with the transfer means extending from the discharge side of the index unit 18 to the dispensing robot (19) ( Valve mechanism assembly of the vehicle engine, characterized in that it comprises a 17). The detection unit (15) according to claim 1, wherein the detection unit (15) consists of an up-down cylinder (31) of the upper part and a plurality of beam sensors (32) mounted on the rod of the up-down cylinder (31), so as not to contact the valve lock and indirect manner. The apparatus for assembling the valve mechanism of a vehicle engine, characterized in that it is possible to detect reverse closing and seating failure of the valve lock. The method of claim 1, wherein the failure discharge unit 16 is a method of discharging defective products by using the pusher 34 of the failure discharge cylinder 33 horizontally installed on one side of the index unit 18. Valve mechanism assembly of the vehicle engine, characterized in that. The valve lock distribution unit 14 is inclined at an angle from the discharge side of the upper two valve lock part feeders 12a and 12b and the valve lock part feeders 12a and 12b. Escapers installed on the sections 13a and 12b of the left-right symmetrical form extending downward and the sections 13a and 13b to control the progress of the valve lock and to advance the valve lock one by one. It is installed at the lower end of the cylinders 21a and 21b and the chute 13a and 13b so as to be interlocked with the lower lift jig 22 where the retainer is seated so that the two valve locks can be combined with the retainer at the same time. Valve mechanism assembly of the vehicle engine, characterized in that consisting of a link device (23). According to claim 4, The linkage device 23 is made of a pair of left and right, one to each chute, having a stopper 24 to enter the chute, while at the same time contacting the lower lift jig 22 to the hinge portion 25 It characterized in that it comprises a link member 26 rotatably installed through, and a spring 28 supporting the upper end of the link member 26 on the other side while being supported in a groove in the chute block 27. Valve mechanism assembly device of vehicle engine. The index unit (18) according to claim 1, wherein the index unit (18) is composed of an index table (29) driven by a motor and an index groove portion (30) formed in eight divisions along the outer circumference of the index table (29). A device for assembling a valve mechanism for a vehicle engine, wherein the retainer + valve lock is transferred to each unit and finally discharged to the supply unit 17 side. The supply unit (17) according to claim 1, wherein the supply unit (17) comprises a loading plate (35) on which the retainer and valve lock assembly is loaded, which is discharged from the index unit (18) for supplying the retainer and valve lock assembly, and each pusher device (36). And a belt conveyor supply line (37) for discharging the retainer and valve lock assembly to the dispensing robot (19) and the retainer and valve lock assembly on the loading plate (35). A shift cylinder 38 for distributing to each supply line 37 and a stopper device 20 for mounting the retainer and valve lock assembly supplied through the supply line 37 into the dispensing robot 19 one by one. Valve mechanism assembly of the vehicle engine, characterized in that.

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