KR101297196B1 - Deburring apparatus of housing for solenoid valve and deburring method using the same - Google Patents

Abstract

The present invention relates to a deburring apparatus of a housing for a solenoid valve and a deburring method using the same, which can remove minute burrs and detached material film from inside and outside of a housing of a solenoid valve, which is one of the components constituting an automatic transmission of an automobile. Regarding, a plurality of circular seating holes are formed so that the housing for the solenoid valve can be seated, and a circular plate-shaped rotational transfer unit that rotates in one direction about a rotational axis, and is formed on an outer upper end of the rotational transfer unit, by an actuator. A housing for a solenoid valve including a deburring unit for removing the inner and outer diameters of the housing and the processing burrs of the flange portion formed at the upper end of the housing and the detached material film through a brush that is moved up and down. It provides a deburring apparatus and a deburring method using the same.

Description

DEBURRING APPARATUS OF HOUSING FOR SOLENOID VALVE AND DEBURRING METHOD USING THE SAME}

The present invention relates to a deburring device of a housing for a solenoid valve and a deburring method using the same, and more particularly, a fine burr and a detached material inside and outside of a housing of a solenoid valve, which is one of components constituting an automatic transmission of an automobile. The deburring apparatus of the housing for solenoid valves which can remove a film etc. is provided.

In general, the automatic transmission of the car is a way that the gear is automatically operated according to the speed. In other words, the clutch is removed to automatically convert to the optimum torque according to the driving speed and load of the car. The automatic transmission is equipped with a solenoid valve as a component, and the number of installation of the solenoid may vary from at least four to seven depending on the transmission type of the vehicle. Since the automatic transmission is hydraulically driven, the solenoid valve can be mounted to adjust the pressure of the hydraulic pressure. Such a solenoid valve is made of a valve that can control the opening and closing of the tube by an electrical signal by using a property of attracting a nearby iron object when current flows through the solenoid to form a magnetic field. These solenoid valves use solenoid valves as well as automatic transmissions, automatic opening and closing doors of buses that control the hydraulic pressure of compressed air and automatically open and close doors, and automatic cold / hot water lock devices used in water purifiers.

In the solenoid valve, a flanged housing is used, and this housing is a portion in which a ball or a spring is inserted into the housing and can be moved by pressure. Such a housing is generally machined and manufactured by cutting. Mechanically machining a housing made of a metal material may leave a fine particle or a burr that is not completely removed by processing, that is, a burr. When such a processing burr is made of a solenoid valve mounted on an automatic transmission that must be operated while being in contact with other components, the processing burrs may be problematic when the processing burrs are engaged with other components. Therefore, it is necessary to perform a deburring operation to remove the processing burr. However, since the inside of the housing must be in direct contact with other parts and must be moved sensitively, if the deburring work is carried out, there is a possibility that the dimensions of the parts may change or the surface may be damaged and lead to larger defects. There was no.

In connection with such a deburring device, there is Korea Patent Publication No. 10-2009-0071887 (hereinafter referred to as the prior art). The prior art relates to a keyway deburring device used to attach to an industrial robot, and relates to a deburring device consisting of a motor and a brush to remove burrs generated after processing the keyway. The prior art has a limitation that it can be used only to remove the processing burrs of the key groove because the object is not provided with a means such as to be sequentially supplied for deburring the object, and the deburring object is to be applied when the three-dimensional product having the inner diameter outer diameter There is a problem that it is not possible, and the surface damage of the workpiece is not taken into account.

The present invention provides a deburring apparatus of a housing for a solenoid valve and a deburring method using the same, which can cleanly remove minute burrs generated after manufacturing a housing that is a component of a solenoid valve used in an automatic transmission of an automobile. It is to provide.

In addition, while deburring the inner diameter and the outer diameter and the plane of the housing sequentially, the deburring device of the housing for the solenoid valve that can minimize the damage to the housing surface by deburring with a material suitable for each part and a deburring method using the same.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above.

Deburring device of the housing for the solenoid valve of the present invention for achieving the above object, a plurality of circular seating holes are formed so that the housing for the solenoid valve is seated, and a circular plate-shaped rotational transfer unit that rotates in one direction about the rotation axis and Is formed on the outer top of the rotary transfer unit, the inner and outer diameters of the housing and the processing burr (burr) of any part of the flange portion formed on the upper end of the housing through the elevating lifting and lowering by the actuator It may include a deburring unit for removing the material film and the like.

Specifically, the brush for deburring the inner diameter of the housing may be a fiber brush.

The fibrous brush may be at least one of nylon, polyester, polyvinyl alcohol, acrylonitrile, polyvinyl chloride, polypropylene, and polyurethane.

An abrasive may be further added to the fibrous brush.

The abrasive may be at least one of fine powder, alumina powder, silica powder, and glass powder of ore.

The brush for deburring the outer diameter of the housing and the flange portion formed at the upper end of the housing may be a metal brush.

The metallic brush may be a stainless steel wire.

The deburring unit includes a first unit for deburring the inner diameter of the housing by having a brush inserted into the inner diameter of the housing and rotating, and a second unit for deburring the outer diameter of the housing by having a cylindrical brush to surround the outer diameter of the housing. And a third unit for deburring the outer side of the housing flange part by having a brush rotating in contact with the outer side of the flange formed on the upper end of the housing.

The first unit may be further formed with a fixing member for holding and holding the housing so that the brush is fixed to the original position when the brush is inserted into the housing inner diameter to rotate.

Air pressure may be used to rotate the rotational transfer unit about the rotational axis.

Deburring by the deburring unit comprises a first holding part for holding the housing and a first driving motor for rotating the first holding part up and down in order to automatically seat the housing in the seating hole formed in the rotational transfer unit. The automatic discharge unit further comprises a second gripping portion for removing the housing from the seating hole, a second driving motor for rotating the second gripping portion up and down, and a conveyor belt for transferring the housing to the outside. The automatic supply unit may be further formed.

The deburring unit is composed of a second gripping portion which pulls out the housing from which the deburring operation is completed from the seating hole, a second driving motor for rotating the second gripping portion up and down, and a conveyor belt for transferring the housing to the outside. An automatic discharge unit may be further formed.

Deburring method of the housing for the solenoid valve of the present invention for achieving the above object, using a fiber brush to remove the processing burr (burr) of the inner diameter of the housing for the solenoid valve and the detached material film, and the like, and Removing the processing burr of the outer diameter of the housing from which the processing burr of the inner diameter has been removed with a metal brush, and removing the processing burr outside the flange formed at the end of the housing from which the processing burr of the outer diameter is removed with a metal brush. It may include.

Removing the processing burr and the separated material film of the housing inner diameter, deburring with a brush of at least one material of nylon, polyester, polyvinyl alcohol, acrylonitrile, polyvinyl chloride, polypropylene, polyurethane can do.

The removing of the processing burr and the detached material film of the housing inner diameter may further include an abrasive to the brush.

A stainless steel wire may be used as the metal brush for removing the outer diameter of the housing, the processing burr outside the flange of the housing, and the detached material coating.

As described above, the present invention neatly removes a fine processing burr generated after manufacturing a housing, which is a component of a solenoid valve used in an automatic transmission of an automobile, and a film of a detached material. This has the effect of improving performance.

In addition, the deburring is performed without damaging the surface of the housing, thereby improving the yield and life of the product.

1 is a perspective view showing a schematic view of a deburring device of a housing for a solenoid valve according to an embodiment of the present invention.
Figure 2 is a photograph taken a state of the housing for the solenoid valve related to the present invention.
3 is an enlarged view of a part (rotary transfer unit) of a deburring apparatus according to another embodiment of the present invention.
4 is a perspective view schematically showing the appearance of a deburring device according to another embodiment of the present invention.
5 is an enlarged view of a part (first unit) of a deburring apparatus according to another embodiment of the present invention.
6 is an enlarged view of a portion (second unit) of a deburring apparatus according to another embodiment of the present invention.
7 is an enlarged view of a portion (third unit) of a deburring apparatus according to another embodiment of the present invention.
8 is an enlarged view of a part (automatic supply unit and automatic discharge unit) of a deburring apparatus according to another embodiment of the present invention.
9 is a flowchart illustrating a deburring method using the deburring apparatus of the present invention in order.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like elements in the figures are denoted by the same reference numerals wherever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a perspective view showing a schematic view of a deburring device of a housing for a solenoid valve according to an embodiment of the present invention, the deburring device 100 includes a rotation transfer unit 110 and a deburring unit 120 It is composed.

Deburring object of the present invention is that the housing (H) for the solenoid valve is mounted in the solenoid valve which is one of the components constituting the automatic transmission of the vehicle. Looking at the picture of the housing (H) for the solenoid valve in Figure 2 is a cylindrical body is formed, a flange portion is formed at the top end is a shape in which a hollow penetrates into the inside of the flange portion and the body. The housing (H) is mainly made of aluminum alloy, etc., the shape is processed by mechanical processing such as cutting, may be anodized for surface hardening after processing. After such mechanical cutting and processing such as die-casting, a fine burr may be generated on the surface and edges of the product, and chips such as fine particles may be generated by mechanical processing. In addition, the housing for the solenoid valve which is a deburring object of the present invention is subjected to anodizing (anodic oxidation) treatment to prevent the coating film, etc., which has escaped from the surface of the material itself generated after curing the inner diameter surface and die casting. After the anodizing treatment, material films that could not be removed are present on the surface of the housing H. Such a processing burr and detached material film may be a factor that hinders fine operation by interposing with other parts when the housing H is used for a solenoid valve in the future. These solenoid valves are used in automobile transmissions, which can cause abnormalities in automatic transmissions. Therefore, it is desirable to remove all of even a fine processing burr, chip, or detached material film.

As shown in FIG. 3, the rotation transfer unit 110 is a metal material that rotates in one direction about a rotation axis C at a central portion thereof, and may have a disc shape. Rotational transfer unit 110 may be formed with a plurality of seating holes 112 in the disc-shaped body (111). The seating hole 112 may have a circular hole shape formed in the main body 111 so that the solenoid valve housing H (hereinafter referred to as a 'housing') is inserted into and seated. A plurality of seating holes 112 are installed in the main body 111 so that the plurality of housings (H) can be continuously introduced into the process, preferably, each seating hole 112 is rotated as shown in the drawing (C). Radially arranged at intervals of 90 ° with respect to the four can be formed. The rotation transfer unit 110 rotating around the rotation axis C may be rotated by the index rotation device. Rotation by the index rotation equipment is to rotate the disc by repeating the operation of rotating the disc by a predetermined angle by dividing 360 ° at a predetermined angle by the index motor and rotating the disc by the set angle. Specifically, in the present invention, the main body 111 of the rotation transfer unit 110 is rotated while repeating the operation to stop 90 ° in a direction for a predetermined time and then rotate again 90 ° by the index motor connected to one side It is preferable. This is to allow the deburring operation to be described later to proceed sequentially.

In the present invention, the air pressure may be used to rotate the rotation transfer unit 110 about the rotation axis (C). In general, the use of air pressure as compared to a device that performs the index rotation using a fluid has the advantage that the electrical control for the operation is simple, easy to operate and control, and easy to maintain. Rotational transfer unit 110 is preferably made of a metal material, it is preferable to use an aluminum material in order to reduce the rotation torque to obtain a suitable strength while reducing the weight.

Deburring unit 120 is to be formed on the outer top of the rotary transfer unit 110 serves to remove the processing bur of the housing (H) described above. The deburring unit 120 may include an actuator (not shown), a motor (not shown), and a brush 121. As the actuator, a pneumatic actuator may be used, and serves to raise and lower the brush 121. Brush 121 is installed at the end of a predetermined drive shaft connected to the actuator is a portion for directly performing the deburring operation. The end of the drive shaft in which the brush 121 is installed is preferably connected to the motor for rotation. Brush 121 is to remove the processing burr (burr) in any one of the inner diameter and outer diameter of the housing (H) and the flange formed on the upper end of the housing (H) by the rotation.

Specifically, as shown in FIG. 4, the deburring unit 120 may include a first unit 120a, a second unit 120b, and a third unit 120c.

The first unit 120a removes the processing burr existing in the inner diameter of the housing H by inserting and rotating a brush in the inner diameter of the housing H. 4 to 5, the first unit (120a), the housing (H) is seated in the seating hole 112 of the rotary transfer unit 110 and the lower end of the drive shaft operated by the actuator from the top The first brush 121a installed in the lower portion is inserted into the inner diameter of the housing H. The inserted first brush 121a may remove the processing burr existing in the inner diameter of the housing H while rotating in the inner diameter of the housing H by a motor.

At this time, the first brush 121a used in the first unit 120a is preferably a fiber brush. The fiber brush may be formed of a synthetic fiber material to be used for deburring the inner diameter of the housing (H). Specifically, the fibrous brush may be formed of at least one material of nylon, polyester, polyvinyl alcohol, acrylonitrile, polyvinyl chloride, polypropylene, and polyurethane. The fiber brush formed as described above is intended to minimize damage to the inner diameter wall of the housing H to be most sensitively deburred. In addition, the abrasive may be further added to the fiber brush to remove the processing burr more effectively. The abrasive is generally used for the purpose of giving gloss to the surface of a material such as a metal or removing foreign matters. The abrasive used in the present invention is at least one of ore fine powder, alumina powder, silica powder and glass powder. This can be used. The abrasive may have a particle size of 1 to 500 micrometers. Further, the abrasive may be alumina suspension in which alumina is mixed in a predetermined solution, or silica suspension in which silica is mixed in a predetermined solution may be used.

In addition, as shown in FIG. 5, while the inner diameter of the housing H is deburred into the first brush 121a, a problem such as the housing H rotates together may occur. Fixing member 122 may be further formed to fix the housing (H) to the original position. The fixing member 122 has a pair of fixing arms 122a capable of gripping the housing H, as shown in FIG. 5, and the housing H is seated on the seating hole 112, thereby providing the first unit 120a. When the preparation for deburring is completed by rotating in the direction, the fixing arms 122a of the fixing member 122 move horizontally toward the housing H from the left and right of the housing H, respectively, to grip and fix the outer periphery of the housing H. . After the fixing member 122 grips and fixes the housing H, it is preferable that the first brush 121a is lowered from the top to be inserted into the housing H inner diameter and rotated to perform the deburring operation.

The second unit 120b removes the processing burr present in the outer diameter of the housing H. 4 to 6, the second unit 120b, the housing (H) is seated on the seating hole 112 of the rotational transfer unit 110, the second brush 121b is moved to the upper position by a predetermined amount. do. That is, a predetermined moving member 123 may be provided to push up the housing H from the bottom to the top. When the housing H is moved in the Y axis to the height at which the second brush 121b is located, the second brush 121b is horizontally moved in the X-axis direction so that the second brush 121b is disposed at the outer diameter of the housing H. Make sure that it is in contact. At this time, the lifting and lowering of the moving member 123 is operated by an actuator, and the second brush 121b and the moving member 123 may be configured to be rotatable, respectively, by connecting a motor. In this case, the second brush 121b may be cylindrical. As the cylindrical second brush 121b rotates and the housing H also rotates in contact with the brush, the processing burr existing in the outer diameter of the housing H can be removed. When the moving member 123 raises the housing H from the bottom to the height at which the second brush 121b is located, the fixing shaft 124 for fixing is lowered at the top of the housing H so that the housing H is lowered. Pressing the upper end of the housing (H) between the movable member and the fixed shaft 124 may be in a fixed state. In this case, the fixed shaft 124 may also rotate the housing H while rotating by the motor like the moving member 123. In addition, the second brush 121b used in the second unit 120b may be cylindrical having a hollow shape. In this case, as the housing H is inserted into the hollow formed in the brush, the processing burr present in the outer diameter of the housing H may be removed as the brush rotates.

In this case, the second brush 121b used in the second unit 120b is preferably a metal brush. When the housing (H) is mounted on the solenoid valve, the outer diameter is less finely connected to other parts than the inner diameter. Therefore, rather than using a fiber brush like the inner diameter, the metal is pulled out like a thin thread, which is divided into a plurality of strands. It is preferable to use a metal brush woven together. The metal brush is preferably formed of stainless steel wire. This is because stainless steel has a predetermined strength and strong corrosion resistance, so that it can be used for a long time without corrosion while minimizing damage to the anodizing layer on the surface of the housing (H).

  The third unit 120c removes the processing burr existing outside the flange formed at the upper end of the housing H. 4 to 7, when the housing H is rotated after being seated on the seating hole 112 of the rotational transfer unit 110, the third brush 121c may move to the housing H. While rotating down to the location where it is located deburring the flange outer surface of the housing (H) top. That is, the actuator is connected to the shaft on which the third brush 121c is installed so that the third brush 121c can be lifted up and down. As such, when the third brush 121c is vertically moved in the Y axis to abut on the outside of the flange portion of the housing H, the motor connected to the third brush 121c rotates the processing brush while rotating the third brush 121c. Will be removed. In this case, the third brush 121c may be cylindrical.

In this case, the third brush 121c used in the third unit 120c is preferably a metal brush. When the housing (H) is mounted on the solenoid valve, the flange of the upper part of the housing (H) has a smaller connection with other parts than the inner diameter. Therefore, pull out the metal like a thin thread rather than using a fiber brush like the inner diameter. It is preferable to use a metal brush which is formed by knitting a plurality of strands. The metal brush is preferably formed of stainless steel wire. This is because stainless steel has a predetermined strength and strong corrosion resistance, so that it can be used for a long time without corrosion while minimizing damage to the anodizing layer on the surface of the housing (H).

In addition, referring to Figure 4, the deburring device 100 of the present invention may be further formed with the automatic supply unit 130 and the automatic discharge unit 140.

The automatic supply unit 130 serves to automatically supply the housing (H) to the seating hole 112 of the rotational transfer unit 110, the first holding the housing (H) as shown in Figs. The gripping portion 131 may be formed. In addition, the first gripping portion 131 is rotated by holding the housing (H) from the outside to be positioned on the seating hole 112, and then moved to the lower end to be fixed in the seating hole (112). Therefore, the first gripper 131 should be able to move up and down and rotate. To this end, an actuator and a first driving motor (not shown) are installed at one side of the first gripper 131. The actuator for raising and lowering the holding part of the automatic supply unit 130 is preferably operated by pneumatic pressure.

In addition, the automatic discharge unit 140 is to remove the housing (H) has completed the deburring operation from the seating port 112 of the rotary transfer unit 110 to discharge to the outside. 4 and 8, the automatic discharge unit 140 is provided with a second gripping portion 141 for gripping the housing (H), the deburring operation is completed from the seating hole 112 as shown in FIG. The second gripping portion 141 moves from the top to the bottom, and a pair of arms Arm, 141am, respectively, grips and fixes the deburring completed housing H seated at the seating hole 112 from left and right. The arm 141a moves upwards after holding the housing H to discharge the housing H from the seating hole 112. Subsequently, the second gripper 141 rotates to move the housing H out of the rotation transfer unit 110 and then lowers the housing H on the conveyor belt 142 that is being operated. The deburring completed housing H placed on the conveyor belt 142 is transferred to the outside to complete the work.

 In the housing (H) deburring method according to the embodiment of the present invention, the fiber bur is first inserted into the inner diameter of the housing (H) and rotated to remove the processing burr present in the inner diameter of the housing (H) (S10).

In this case, the fibrous brush may be formed of at least one material of nylon, polyester, polyvinyl alcohol, acrylonitrile, polyvinyl chloride, polypropylene, and polyurethane. The fiber brush formed as described above is intended to minimize damage to the inner diameter wall of the housing H to be most sensitively deburred. In addition, the abrasive may be further added to the fiber brush to remove the processing burr more effectively. The abrasive is generally used for the purpose of giving gloss to the surface of a material such as a metal or removing foreign matters. The abrasive used in the present invention is at least one of ore fine powder, alumina powder, silica powder and glass powder. This can be used. The abrasive may have a particle size of 1 to 500 micrometers. Further, the abrasive may be alumina suspension in which alumina is mixed in a predetermined solution, or silica suspension in which silica is mixed in a predetermined solution may be used.

After removing the processing burr of the inner diameter of the housing H, the processing burr is removed to the outer diameter of the housing H by using a metal brush (S20). In this case, it is preferable to use a metal brush having a higher hardness or strength than the fiber brush or a stainless steel wire having corrosion resistance. The thickness of the stainless steel wire used for this is preferably from about 500 micrometers to 3000 micrometers in wire diameter. If the thickness is less than 500 micrometers, it may be difficult and expensive to manufacture the wire. If the thickness is more than 3000 micrometers, the risk of damage to the outer diameter of the housing H increases.

After removing the processing burr of the outer diameter of the housing (H), the processing burr existing outside the flange formed at the upper end of the housing (H) is removed using a metal brush (S30). Also in this case, it is preferable to use the stainless steel wire similarly to the case where the processing burr is removed in the outer diameter of the housing H. The thickness of the stainless steel wire used for this is preferably from about 500 micrometers to 3000 micrometers in wire diameter. If the thickness is less than 500 micrometers, it may be difficult and expensive to manufacture the wire. If the thickness is more than 3000 micrometers, the risk of damage to the outer diameter of the housing H increases.

The housing deburring device and the deburring method for the solenoid valve configured as described above have the effect of improving the performance of the product by neatly removing the fine burrs generated after the housing is manufactured by processing, and the housing. Deburring can be performed without damaging the surface of the product to improve the yield and life of the product.

The deburring device of the housing for the solenoid valve as described above and is not limited to the configuration and manner of operation of the embodiments described above. The above embodiments may be configured such that various modifications may be made by selectively combining all or part of the embodiments.

100: deburring device 110: rotation transfer unit
111: main body 112: seating
120: deburring unit 120a: first unit
120b: second unit 120c: third unit
121: brush 121a: the first brush
121b: second brush 121c: third brush
122: fixing member 123: moving member
124: fixed shaft 130: automatic supply unit
131: first gripping section 140: automatic discharge unit
141: second gripping portion 141a: arm
142: conveyor belt H: housing
C: axis of rotation

Claims (16)

A circular plate-shaped rotational transfer unit having a plurality of circular seating holes formed therein so that the housing for the solenoid valve can be seated and rotated in one direction about a rotation axis; And
A first unit which is formed at an outer upper end of the rotational transfer unit, adds an abrasive through a brush that is lifted up and down by an actuator, and inserts the abrasive into the inner diameter to deburr the inner diameter of the housing;
A second unit having a cylindrical brush to surround the outer diameter of the housing and deburring the outer diameter of the housing; And
And a deburring unit having a brush which rotates in contact with an outer side of the flange formed at the upper end of the housing, and a third unit which removes a processing burr and a detached material film of any one of the housing flanges. Deburring device for housing for solenoid valve.
The method according to claim 1,
Brush for deburring the inner diameter of the housing is a deburring device of the housing for the solenoid valve is a fiber brush.
The method according to claim 2,
The fiber brush is a deburring apparatus of a housing for a solenoid valve of at least one of nylon, polyester, polyvinyl alcohol, acrylonitrile, polyvinyl chloride, polypropylene, and polyurethane.
delete The method according to claim 1,
The abrasive is a deburring apparatus of a housing for a solenoid valve is at least one or more of ore fine powder, alumina powder, silica powder, glass powder.
The method according to claim 1,
Brush for deburring the outer diameter of the housing and the flange portion formed on the upper end of the housing is a metal brush deburring device of the housing for the solenoid valve.
The method of claim 6,
The metal brush is a deburring device of the housing for the solenoid valve is a stainless steel wire.
delete The method according to claim 1,
Deburring apparatus of the housing for the solenoid valve is further formed in the first unit is provided with a fixing member for holding and holding the housing so that the brush is fixed to the original position when the brush is inserted into the housing inner diameter to rotate.
The method according to claim 1,
Deburring device of the housing for the solenoid valve using the air pressure to rotate the rotation transfer unit about the rotation axis.
The method according to claim 1,
In order to automatically seat the housing in the seating hole formed in the rotational transfer unit, the automatic supply unit is composed of a first gripping portion for holding the housing and a first drive motor for rotating the first gripping portion up and down Deburring device of the housing for the formed solenoid valve.
The method according to claim 1,
The deburring unit is composed of a second gripping portion which pulls out the housing from which the deburring operation is completed from the seating hole, a second driving motor for rotating the second gripping portion up and down, and a conveyor belt for transferring the housing to the outside. Deburring device for a housing for a solenoid valve further formed with an automatic discharge unit.
Removing the processed burr of the inner diameter of the housing for the solenoid valve and the detached material film using the abrasive-added fiber brush;
Removing the processing burr of the outer diameter of the housing from which the processing burr of the inner diameter and the detached material film are removed with a metal brush of stainless steel wire; And
And removing the processing burr outside the flange formed at the end of the housing from which the processing burr of the outer diameter has been removed with a metallic brush.
The method according to claim 13,
Removing the processing burr and the separated material film of the housing inner diameter,
A deburring method of a housing for a solenoid valve, which is deburred with a brush made of at least one of nylon, polyester, polyvinyl alcohol, acrylonitrile, polyvinyl chloride, polypropylene, and polyurethane.
delete delete

Images