JPH10296196A - Device for removing foreign matter in product incorporating movable body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely remove the foreign matter depositing on the engaging part of a movable body from a product incorporating the movable body such as a spool operated by an oil pressure. SOLUTION: A body 10 of a control valve in an automatic transmission is positioned and held on the upper face 21A of a base plate 21 and pressurized air is intermittently supplied to a fluid pressure introducing passage 10G of the body 10 passing through the feed hole 21B of the base plate 21. Consequently, a spool 11 incorporated into the body 10 is reciprocated and the pressurized air in blown against the body 10 through an opening 21C of the base plate 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foreign matter removing device for removing foreign matter adhering to a product incorporating a movable body operated by fluid pressure from the product.

[0002]

2. Description of the Related Art As a product incorporating a movable body operated by fluid pressure, there is, for example, a control valve of an automatic transmission. Such a control valve is for appropriately supplying hydraulic pressure from an oil pump to a clutch, a torque converter, and the like, and is an important component of an automatic transmission. Such a control valve has a configuration in which upper and lower bodies are combined. An oil groove formed in a complicated manner is formed on the opposing surface of each body, and an oil flow path is formed between the oil grooves by combining the bodies. In addition, a spool for switching an oil flow path according to the oil pressure is incorporated as a movable body inside such a body. Prior to assembling such a body into an automatic transmission, a removing operation for removing foreign matter adhering to an oil groove or the like is performed in advance. The foreign matter includes, for example, burrs generated during cutting of the body.

Conventionally, there are the following five methods for removing foreign matter from the body of such a control valve, for example. The first is a removing method in which a body is vibrated by using a vibrator, the second is an air blowing method in which air is blown, the third is a spray cleaning method in which a cleaning liquid is blown, and the fourth is removal by flushing using oil. The fifth method is a suction removal method using a negative pressure.

[0004]

However, any of the above conventional methods has the following problems.

That is, in the case of the first vibration removing method, the foreign matter at the fitting portion between the body and the spool cannot be removed, and in the case of the second air blowing method and the third spray cleaning method, Air or cleaning liquid cannot be blown into the inside of the oil groove or the fitting portion of the spool, and foreign matters in those portions cannot be removed. In the case of the flushing method using the fourth oil, it is difficult to discharge foreign substances inside the body to the outside, and the working environment is deteriorated by the oil adhering to the body. In the case of the fifth suction removing method, it is difficult to effectively apply the suction force to the fitting portion of the spool. After all, it is difficult to reliably remove foreign matter from the fitting portion of the spool by any of the methods. For example, if burrs as foreign matter generated during cutting of the body cannot be removed, the smooth movement of the spool Could be impaired.

SUMMARY OF THE INVENTION An object of the present invention is to provide a foreign matter removing apparatus capable of reliably removing foreign matter adhering to a fitting portion of a movable body from a product incorporating a movable body such as a spool operated by fluid pressure. Is to do.

[0007]

SUMMARY OF THE INVENTION A foreign matter removing device for a product incorporating a movable body according to the present invention is provided for removing foreign matter adhering to the product from a product incorporating a movable body operated by fluid pressure. A foreign matter removing device, comprising: holding means for holding the product at a work position; a cover surrounding the work position; and supplying a fluid pressure for operating the movable body to the product held at the work position. And a blow means for blowing pressurized air to the product held at the working position.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. This example is directed to a control valve body 10 of an automatic transmission as a target product, and is applied as a foreign matter removing device for removing foreign matter attached to the body 10 before the body 10 is assembled to the automatic transmission. It is an example. The foreign matter includes, for example, burrs generated during cutting of the body 10.

Therefore, first, the control valve body 10 of the target product will be described. As described above, the control valve is for appropriately supplying the hydraulic pressure from the oil pump to the clutch, the torque converter, and the like, and has a configuration in which the upper and lower bodies 10 are combined. The mating surface 10A of each body 10
An oil groove formed in a complicated manner is formed in (see FIG. 3), and an oil flow path is formed between the oil grooves by combining the bodies 10. Also,
As shown in FIG. 3, a spool 11 for switching the oil flow path according to the oil pressure is incorporated as a movable body inside the body 10 as described above.

In the case of this embodiment, a steel spool 11 is fitted inside an aluminum body 10 so as to be movable in the directions of arrows A1 and A2 in FIG. Oil flow path 10B, 1
0C, 10D, 10E, and 10F are switched. These flow paths 10B, 10C, 10D, 10
E and 10F are open to the mating surface 10A of the body 10. A fluid pressure introducing passage 10G is opened in the mating surface 10A of the body 10, and when the fluid pressure is introduced from the introducing passage 10G, the spool 11 moves in the direction of arrow A1 while compressing the spring 12. Thereafter, when the introduction of the fluid pressure is stopped, the spool 11 returns in the direction of arrow A2 by the restoring force of the spring 12. The spool 11 may constitute, for example, a lock-up control valve together with the spring 12 and the plug 13.

Next, a foreign matter removing device for removing such foreign matter adhered to the body 10 will be described.

FIG. 1 is a front view of a partial cutout of the entire apparatus, and FIG. 2 is a side view of the partial cutout as viewed from the direction of arrow II in FIG. In these figures, reference numeral 21 denotes a base plate horizontally mounted on a fixed plate 20A in the apparatus main body 20, and an upper surface 21A of the base plate 21
Is a mounting surface on which the positioning is performed. The body 10 has a body 1 as shown in FIGS.
A fluid pressure supply hole 21B is formed at a position opposite to the fluid pressure introduction passage 10G of No. 0. The lower end of the supply hole 21B is connected to a fluid pressure supply unit (not shown) for supplying pressurized air as a fluid for operating the spool 11. In addition, on the upper surface 21A of the base plate 21,
A seal member S made of urethane rubber or the like is provided at the periphery of the opening of the supply hole 21B. Further, an opening 21C is formed in the base plate 21 at a position facing the oil grooves and the flow paths 10B, 10C, 10D, 10E, and 10F formed in the body 10, and the opening 21C is formed.
Through the oil grooves and channels 10B, 10C, 10
D, 10E, and 10F are exposed below.

As shown in FIGS. 1 and 2, an elevating plate 23 is provided above the base plate 21 so as to be moved up and down by expansion and contraction of an elevating cylinder 22. 24 is a guide rod for guiding the elevating plate 23. An upper cover 25 that opens downward is attached to a lower portion of the elevating plate 23, and a vacuum cleaner (not shown) that suctions the inside of the upper cover 25 is provided at an exhaust port 25 </ b> A formed above the upper cover 25. Is connected.

A rod 32 is supported inside the upper cover 25 by a guide plate 31 and the like so as to be vertically movable. A clamp member 33 is attached to the lower end of the rod 32, and the clamp member 33 and the guide plate 3
1, a compression spring 34 for urging the rod 32 downward together with the clamp member 33 is interposed. The rod 32 is prevented from falling downward by a stopper (not shown), and the limit of the downward movement limit position is restricted by the stopper. The clamp member 33 provided in this manner constitutes a holding unit for holding the body 10 on the base plate 21 as described later. Further, inside the upper cover 25, an upper nozzle 26 connected to a pressurized air supply source (not shown) is provided.
The upper nozzle 26 constitutes a blow unit that blows pressurized air toward the body 10 held on the base plate 21.

At the lower part of the fixing plate 20A in the apparatus main body 20, a cylindrical lower cover 27 whose lower side is narrowed is attached. A vacuum cleaner (not shown) that suctions the inside of the lower cover 27 is connected to an exhaust port 27A formed at a lower portion of the lower cover 27. Inside the lower cover 27, a plurality of lower nozzles 28 connected to a pressurized air supply source (not shown) are provided, and these lower nozzles 28 face the body 10 on the base plate 21 through the opening 21C. To form blow means for blowing pressurized air. Further, the lower nozzle 28 is connected to the cylinder 2
9 is reciprocated in the directions of arrows B1 and B2 in FIG.

Reference numeral 40 denotes a transfer device, which is a body 1 on the base plate 21 from which foreign matter has been removed as will be described later.
The body 10 is automatically paid out by lifting the 0 and transferring it to the payout conveyor 50. The transfer device 40 of this example is provided with a grip 43 capable of gripping the body 10 on a main body 42 that moves in the directions of arrows C1 and C2 in FIG. 43 is moved up and down by expansion and contraction of a cylinder 44.

Next, the operation will be described.

First, the upper cover 25 is attached to the base plate 2.
Then, the body 10 is lifted so as to be separated from the upper part of the base plate 1 and then the body 10 is positioned and placed on a fixed position on the base plate 21 manually or by an automatic carry-in device. Its body 10
3 and 4, the fluid pressure introducing passage 10G on the body 10 side and the base plate 21 as shown in FIGS.
And the oil supply groove 21B on the body 10 side and the flow paths 10B, 10C, 10D, 10E, 1
OF is exposed below the base plate 21 through the opening 21C on the base plate 21 side.

Thereafter, the upper cover 25 is lowered as shown in FIG.
1A to surround the body 10. At this time, the clamp member 33 is pressed against the upper surface of the body 10 with the compression deformation of the spring 34. As a result, the body 10 is pressed and held against the upper surface 21A of the base plate 21, the fluid pressure introduction passage 10G and the supply hole 21B communicate with each other as shown in FIG. You.

Thereafter, air pressure is intermittently introduced into the introduction hole 10G from the fluid pressure supply means through the supply hole 21B, and the spool 11 is reciprocated in the directions of arrows A1 and A2 in FIG. Further, pressurized air is blown out from the upper nozzle 26, and the lower nozzle 28 is moved to the arrow B1 in FIG.
Pressing air is ejected from the lower nozzle 28 while reciprocating in the direction B2. At the same time, the upper cover 25 and the lower cover 27 are passed through the exhaust ports 25A and 27A.
Inhale the inside of the.

As a result, foreign matter adhering to the fitting portion of the spool 11 in the body 10
1 reciprocating motion and flow paths 10B, 10C, 10D, 10E,
It is reliably removed by the pressure of the air flowing through 10F, and the flow paths 10B, 10C, 10D, 10
E, 10F and the discharge through the opening 21C of the base plate 21. In addition, foreign matter adhering to the upper surface side of the body 10 and air flowing from the upper nozzle 26 and the lower nozzle 28,
Foreign matter adhering in the oil groove on the mating surface 10A side is removed. Then, for example, burrs as foreign matter generated during the cutting of the body 10 are reliably removed, so that smooth movement of the spool 11 is ensured.

In removing such foreign matter,
The vibration generated by the reciprocating motion of the spool 11 effectively acts, thereby improving the removal and discharge of the foreign matter. The spool 11 is reciprocated repeatedly, for example, every one second.
In addition, in order to improve the removal of foreign matter and the dischargeability,
It is also advantageous that the lower nozzle 28 blows air while moving. The foreign matter thus removed from the body 10 is discharged through the exhaust ports 25A and 27A, and is collected by the vacuum cleaner. Also, the upper cover 25
The lower cover 27 performs a soundproofing function together with a dust collecting function.

After the above-described foreign matter removing operation has been performed for a predetermined time, the upper cover 25 is raised, the upper cover 25 is separated above the body 10, and the body 10 is pressed and held by the clamp member 33. To release. Thereafter, the body 10 is lifted by the transfer device 40, transferred to the payout conveyor 50 as shown by the two-dot chain line in FIG. Then, the above-described removing operation is performed.

As the fluid for moving the spool 11, in addition to the use of pressurized air as in this embodiment, various liquids such as gas and oil can be used. In addition, products to remove foreign matter are not limited only to the body of the control valve in the automatic transmission, and the present invention is directed to various products in which a movable body operated by fluid pressure is incorporated. Foreign matter adhering to the product can be removed.

[0025]

As described above, the foreign matter removing device of the present invention operates the movable body by fluid pressure in order to remove foreign matter adhering to a product incorporating a movable body such as a spool. Since the pressurized air is blown, foreign matters adhering to the fitting portion of the movable body can be reliably removed.

[Brief description of the drawings]

FIG. 1 is a front view of a partially cut-away view of an embodiment of the present invention.

FIG. 2 is a side view of a partially cut-away view taken along the arrow II of FIG.

FIG. 3 is an enlarged sectional view of an opposing portion between a base plate and a body in FIG.

FIG. 4 is an enlarged view of an IV circle portion in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Body (product) 10A Mating surface 10B, 10C, 10D, 10E, 10F Flow path 10G Fluid pressure introduction path 11 Spool (movable body) 20 Device main body 21 Base plate 21A Upper surface 21B Fluid pressure supply hole 21C Opening 25 Upper cover 26 Upper Nozzle 27 Lower cover 28 Lower nozzle 31 Guide plate 32 Rod 33 Clamp member 34 Spring 40 Transfer device 50 Payout conveyor

Claims (5)

[Claims] 1. A foreign matter removing device for removing foreign matter attached to a product from a product in which a movable body operated by a fluid pressure is incorporated, comprising: holding means for holding the product in a working position; A cover surrounding the working position, a fluid pressure supply unit for supplying a fluid pressure for operating the movable body to the product held in the working position, and pressurized air to the product held in the working position. An apparatus for removing foreign matter from a product incorporating a movable body, comprising: a blow means for blowing. 2. The movable body incorporated in the product is a movable body that moves forward when fluid pressure is introduced and moves backward by a spring when fluid pressure is no longer introduced. Item 10. A foreign matter removing device for a product, in which the movable body according to Item 1 is incorporated. 3. The foreign matter of a product incorporating a movable body according to claim 1, wherein said fluid pressure supply means intermittently supplies a fluid pressure for operating said movable body. Removal device. 4. A base plate on which the product can be placed is provided in the working position, the base plate having an opening for partially exposing the product placed on the base plate downward; The holding unit has a pressing mechanism that presses and holds the product on the base plate, and the blowing unit includes a nozzle that blows pressurized air to the product through the opening from below the base plate. An apparatus for removing foreign matter from a product, into which the movable body according to claim 1 is incorporated. 5. The control valve body according to claim 1, wherein the product is a control valve body of an automatic transmission in which a spool for switching an oil flow path is incorporated as the movable body. A foreign matter removal device for products incorporating a movable body.