KR19990020843A - Cylinder-head oil hole blockage preventing device and method - Google Patents

Abstract

The present invention injects air before oil is introduced into a plurality of oil holes formed with a predetermined length in the cylinder-head, thereby inspecting or preventing foreign substances or chips from being caught in the oil holes during the manufacturing process. The present invention relates to a cylinder-head oil hole clogging prevention device and a method for allowing oil to be smoothly flown therein, and a transfer part for transferring the cylinder-head (10) and an oil which is installed at a predetermined height from the transfer part and is movable. The hole 20 is determined by the hole and the air cylinder 30 is characterized in that the air supply is configured to be mounted and the air supply for supplying air into the oil hole 20 in the cylinder head (10).

Description

Cylinder-head oil hole blockage preventing device and method

The present invention relates to a cylinder-head oil hole, and in particular, by injecting air before oil is introduced into a plurality of oil holes having a predetermined length in a single over head cam shaft (SOHC) cylinder-head, The present invention relates to a cylinder-head oil hole clogging prevention device and method for inspecting or preventing foreign substances or chips from being caught in the oil hole so that oil can be smoothly delivered in the oil hole.

These cylinder-head oil holes are generally used to operate hydraulic tappets by receiving engine oil, and also to supply engine oil to the SUFFOT and CAM shaft mounted on the top of the cylinder-head. It plays a role.

The cylinder-head oil hole used for this purpose is a fine passage penetrating with a predetermined length in the cylinder-head as shown in FIG. 1, and the engine oil is introduced through the passage, that is, the oil passage. Supply oil to

1A and 1B, the inflow and the oil supply path of the engine oil through the cylinder-head oil hole will be described in detail.

As shown in FIG. 1A on the accompanying drawings, a plurality of oil holes P1, P2, P3 penetrate up, down, left and right in the cylinder-head 10 with a predetermined length. First, when the engine oil is injected into the first oil hole P1, the engine oil is injected along the first oil hole P1 and then injected into the second oil hole P2. In this way, the oil injected into the second oil hole P2 is fed along the passage formed in the second oil hole P2 and then operates the hydraulic tappet.

In addition, the oil and the oil supplied to the third oil hole (P3) through the first oil hole (P1) is pumped along the passage formed in the third oil hole (P3), and then the support and the cam mounted on the upper cylinder-head Lubrication is provided by supplying oil to the shaft.

However, as described above, many foreign substances or chips are generated in the passages of the conventional oil holes P1-P2 formed in the cylinder-head 10 to accumulate or accumulate. This foreign matter or chips cause the oil supply through the passage of the oil holes (P1-P3), the oil is not supplied to the hydraulic tappet, the support, or the camshaft, or there is a problem that the sufficient oil is not supplied have.

As described above, when oil is not supplied or insufficient oil is supplied through the oil holes P1-P3, vibration occurs in the hydraulic tappet, and the cam shaft is sintered. As a result, the wear of the machine occurs, shortens the lifespan, and decreases the efficiency of the device.

The present invention has been made in view of the problems of a plurality of cylinder-head oil holes formed in the conventional cylinder-head, and oil is introduced into a plurality of oil holes having a predetermined length in the SOHC cylinder-head and formed vertically or horizontally. By injecting air before it is provided, it provides a cylinder-head oil hole clogging prevention device that can check and prevent foreign substances or chips from being caught or accumulated in the oil hole during the manufacturing process so that oil can be smoothly flowed in the oil hole. Therefore, the purpose of the present invention is to prevent the vibration of the oil tapping device, that is, the hydraulic tappet and the ignition of the camshaft.

Specific means of the present invention for achieving the above object is a cylinder-head transfer unit and an oil hole determination unit installed at a predetermined height from the transfer unit and movable to move, and the left and right sliding by the air cylinder and the cylinder- And an air supply unit for supplying air into the oil hole in the head.

1A is a side view of an oil hole of a conventional cylinder head.

1B is a side view of another oil hole of a conventional cylinder head.

2 is a front view of a preventive device according to an embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

10: cylinder head P1-P3, 20: oil hole

30: air cylinder 31: air tube

32: slider 33: air supply hose

34: cylinder rod 35: cylinder support

36: air supply passage 40: conveyor belt

41: Pallet 42: Support

50: valve key test machine 51: axis

52: proximity switch 53: iron core

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 2 is a front view showing an embodiment of the present invention, showing an embodiment of the present invention.

The same or equivalent parts as in FIG. 1 showing the oil holes formed in the cylinder-head will be described using the same reference numerals for convenience.

As shown in FIG. 2, the cylinder-head hole clogging prevention device according to the present invention includes a transfer part for transferring the cylinder-head 10 and an oil hole 20 which is installed at a predetermined height from the transfer part. It is comprised by the determination part and the air supply part which can slide left and right by the air cylinder 30, and supplies air to the oil hole 20 in the cylinder-head 10.

The conveying unit is a conveyor belt 40, the plate-shaped pallet 41 is installed on the upper portion, the cylinder head is mounted on the conveyor belt 40 and conveyed.

The cylinder head oil hole determination unit capable of moving at a predetermined height from the conveyor belt 40 has a shaft 51 formed at its center as a valve key test machine 50, and a proximity switch 52 is installed at one side thereof. The iron core 53 mounted on the bottom of the test machine 50 and having a length of is in contact with the proximity switch 52 with elastic restoring force.

Proximity switch 52 mounted on one side of the valve key test machine 50 is connected to the signal means, which means for notifying whether foreign matter or chips are caught in the cylinder-head oil hole 20. As a kind of buzzer, it can also be a lamp.

In addition, the air supply part is provided with a plate-type slider 32 that can be slid left and right by an air cylinder 30 having an air tube 31 connected to one side, and an air supply means is formed at one end of the slider 32. The air supply means is an air supply passage 36 formed in the slider 32, one end of which is connected to the air supply hose 33, the other end is formed with an outlet.

Referring to the operating state of the embodiment of the present invention configured as described above are as follows.

Referring to the front view of the present invention shown in FIG. 2, first, on the pallet 41 of the conveyor belt 40, a plurality of cylinder heads 10 having been manufactured are mounted on the pallet 41. The cylinder head 10 is conveyed while forming a space portion from the pallet 41 by the height of the support 42, and the cylinder head 10 inside the cylinder head 10 as described above in the bottom portion The oil hole 20 which leads to is formed.

When the cylinder head 10 is transported along the conveyor belt 40 in this manner, the valve key test machine 50 is lowered by the automatic control means (not shown) installed near the vicinity. At the same time, the proximity switch 52 attached to one side of the test machine 50 is also lowered together, and the test machine 50 is lowered to the proximal position above the cylinder head 10.

As described above, when the valve key test machine 50 descends to the vicinity of the upper portion of the cylinder head 10 and its operation stops, one end of the iron core 53 having a predetermined length installed on the bottom of the test machine 50 is removed. It is located in front of the top exit of the oil hole 20 of the cylinder head 10. The iron core 53 having a predetermined length has elastic restoring force. When one end thereof receives an upward force, the other end thereof comes into contact with the proximity switch 52. In addition, it may be possible to fix both ends of the iron core 53 by pivoting on the central portion of the iron core 53 of a predetermined length.

In the state where the cylinder head 10 is placed between the conveyor belt 40 and the valve key test machine 50 in this way, one end of the air cylinder 30 is opened by an automatic control means (not shown in the drawing) installed in the vicinity of the cylinder. When air is injected into the air tube 31, the air cylinder 30 is operated, and thus the cylinder rod 34 capable of horizontal movement is moved.

To do this, the cylinder rod 34 is connected to a piston (not shown) of the air cylinder 30, one end of which is connected to the slider 32 by fastening means. Is fastened. The cylinder support 35 supporting the air cylinder 30 may be configured to support the slider 32 and the conveyor belt 40 together.

As the air cylinder 30 operates, the cylinder rod 34 moves toward the cylinder head 10, which moves the slider 32 to the pallet 41 and the cylinder head 10 of the conveyor belt 40. It is pushed into the space formed in between. An air supply means is formed at one end of the slider 32. The air supply means is an air supply passage formed inside the slider 32, and an inlet portion of the slider 32 is connected to an air supply hose 33, and an outlet portion is formed at the other end. .

As described above, when the air supply means of the slider 32 is inserted into the space portion between the cylinder head 10 and the conveyor belt 40, the outlet portion of the air supply passage 36 of the air supply means is inserted into the cylinder head 10. The operation of the air cylinder 30 is stopped at the moment when the passage bottom of the oil hole 20 of the oil hole 20 (ie, the inlet into which the oil is injected) is opposed to each other, and at the same time, the air supply hose 33 of the air supply means is Air is injected through it.

The air injected into the air supply hose 33 flows along the air supply passage 36 formed at the inner end of the slider 32 and then flows out to the outlet of the air supply passage 36. The air thus discharged is injected into the inlet of the oil hole 20 of the cylinder head 10.

In this way, the air injected into the oil hole 20 of the cylinder head 10 flows along the passage of the oil hole 20 and then flows out to the outlet. The air flowing out of the outlet part has its own flow velocity or Hydraulically pushes one end of the iron core 53 located in front of the outlet portion. The hydraulic pressure flowing along the passage of the oil hole 20 is adjusted to suit the purpose of the present invention.

On the other hand, the air flowing along the passage of the oil hole 20 is inspected for the foreign matter or chips that are stuck or accumulated in the oil hole 20 of the cylinder head 10, if the foreign matter in the oil hole 20 If chips or the like are trapped or accumulated, the hydraulic pressure of the air flowing along the passage of the oil hole 20 will be reduced by that amount. If there is no foreign material or chips, the air will maintain the constant hydraulic pressure while the passage of the oil hole 20 is reduced. Will flow.

As a result of this process and result, if the hydraulic pressure of the air flowing out to the outlet of the passage of the oil hole 20 is discharged while maintaining its own hydraulic pressure, the air will push one end of the iron core 53 as described above. Therefore, the other end of the iron core 53 having a predetermined length with elastic force will be pushed to contact the proximity switch 52. However, when the hydraulic pressure of the air flowing out to the outlet of the passage of the oil hole 20 is reduced, the pushing force for pushing the one end of the iron core 53 by the air is reduced by that much, so that the other end of the iron core 53 is close. It will not be able to contact the switch 52.

As such, when the iron core 53 does not contact the proximity switch 52, a signal is generated on the signal means connected to the switch 52, that is, a buzzer or a lamp, and the operation of the conveyor belt 40 is stopped. 40 no longer carries the cylinder head 10. That is, it will be possible to determine whether the cylinder head 10 is good or not by this process. Of course, such cylinder heads will be judged as defective and will be rebuilt or abandoned.

However, if the hydraulic pressure of the air flowing out from the outlet of the oil hole 20 of the cylinder head 10 flows out while maintaining its own hydraulic pressure, the air pushes the iron core 53, and thus the iron core 53. ) Touches the proximity switch 52, the cylinder head 10 being inspected is determined to be good and the conveyor belt 40 will continue to transport the cylinder head 10.

Since the air passing through the passage of the oil hole 20 of the cylinder head 10 maintains a constant hydraulic pressure, foreign matters or chips accumulated in the passage may be discharged through the outlet of the passage. will be.

The operation process as described above will be operated in a series of continuous operations.

As described above, the cylinder-head oil hole clogging prevention device and the method according to the present invention can check whether the foreign matter and chips, etc. are caught in the oil hole formed in the completed cylinder head, the oil hole is clogged or foreign matter It is possible to prevent the cylinder head with the back caught from being assembled into the engine of the vehicle in advance.

In other words, it is possible to prevent the occurrence of vibration of the auxiliary device, ie the hydraulic tappet or the cam shaft, by detecting the cylinder head which may impede the oil hole, that is, the oil feeding, and blocking the assembly. Will be.

In addition, the oil hole clogging prevention device of the cylinder head of the present invention will be more usefully applied to the oil hole of the SOHC cylinder head.

Claims (4)

An apparatus for preventing clogging of a cylinder-head oil hole, comprising: a conveying part for conveying the cylinder-head 10, an oil hole 20 determining part which is installed at a predetermined height from the conveying part, and which is movable; The cylinder-head oil hole clogging prevention device is characterized in that it is configured to be equipped with an air supply for supplying air into the oil hole (20) in the cylinder head (10) by sliding left and right. The conveyer for conveying the cylinder head 10 is a conveyor belt 40 having a pallet 41 at an upper portion thereof, and the oil hole 20 determining unit has an iron core 53 having a predetermined length at a bottom thereof. Is a valve key test machine 50 mounted with a proximity switch 52 at one side, and the air supply unit is coupled to one end of the cylinder rod 34 operated by the air cylinder 30. The cylinder-head oil hole clogging prevention device, characterized in that the air supply means is formed at one end of the slider (32). The air supply means formed at one end of the slider 32 is an air supply passage 36 formed inside the slider 32, and one end of the air supply passage 36 is an air supply hose 33. Is connected, the other end of the cylinder-head oil hole clogging prevention device, characterized in that the air outlet is formed. CLAIMS 1. A method for preventing clogging of a cylinder-head oil hole, the method comprising the steps of: conveying a cylinder head (10) by a conveyor belt (40); A valve key test machine 50 having a predetermined length of an iron core 53 mounted on a bottom thereof and a proximity switch 52 attached to one side thereof descending to an upper portion of the cylinder head 10; Inserting a slider (32) engaged with one end of the cylinder rod (34) operated by the air cylinder (30) between the bottom of the cylinder head (10) and the top of the conveyor belt (40); Injecting air into the oil hole (20) of the cylinder head (10) by air supply means formed at one end of the slider (32); Cylinder head oil hole clogging prevention method comprising the proximity switch (52), the iron core (53) and the signal means for determining the cylinder head oil hole.