KR101556004B1 - Punching device for improvement of surface roughness and pattern processing method using the same and the pattern - Google Patents

Abstract

According to the present invention, by forming a pattern having a plurality of roads on the surface of an object by punching the object in a vertical direction while moving the processing pin in the horizontal direction, it is possible to form various pattern shapes while minimizing the deformation of the object, And to provide a dot punching device for improving surface roughness which is easy to maintain and repair, and a pattern processed using the device.
A dot-punching machining apparatus according to the present invention is a dot-punching machining apparatus for forming a predetermined pattern composed of a plurality of dots on a discharge port of a valve plate for a compressor and a peripheral surface of a suction port, A seating jig having a seating portion in which the seat is disposed; A fixing jig for fixing the valve plate disposed in the seating jig to the seating jig and fixing the valve plate; A processing unit for forming a pattern by bending the surface of the valve plate while moving the other pins in the horizontal and vertical directions at a constant speed; .

Description

[0001] The present invention relates to a punching device for improving roughness and a pattern formed by using the same,

[0001] The present invention relates to a punching device for improving roughness and a pattern processed using the same, and more particularly to a punching device for improving roughness which forms a proper pattern by punching a punch while moving a processing pin at a certain interval around a discharge port and an inlet port of a valve plate for a compressor And a pattern processed using the apparatus.

In general, a piston type compressor such as an inclined plate type compressor is formed by partitioning a cylinder, a suction chamber, and a discharge chamber with a valve plate interposed therebetween. A suction groove is formed in the valve plate at a position facing the suction chamber, And discharge grooves are respectively formed in the through holes.

A suction valve is disposed on the cylinder-side surface of the valve plate, and a discharge valve is disposed on the suction chamber and the discharge chamber-side surface, respectively. The suction valve has a suction lead portion at a position corresponding to the suction groove, And has a discharge lead portion at the position.

In operation of the compressor, the suction lead portion of the suction valve and the discharge lead portion of the discharge valve open / close the suction groove and the discharge groove of the valve plate in accordance with the reciprocating motion of the piston. Since the lubricating oil component contained in the refrigerant adheres, The lid portions are strongly adhered to the surface of the valve plate.

Therefore, it is known that instantaneous pressure fluctuation occurs when the suction groove and the discharge groove are opened or closed, causing an abnormal sound of the evaporator connected to the compressor, or adding an impact sound of the lead portion, thereby promoting noise and vibration.

Accordingly, in order to reduce noise and vibration, a method has been proposed in which the surface of the valve plate is processed into a predetermined pattern (20) so as to obtain a quietness.

Noise and vibration due to opening and closing of the suction valve and the discharge valve can be suppressed by roughening the surface of the valve plate. In the conventional roughening, a shot blasting method of spraying short particles of alumina or the like with air pressure is widely used.

The shot blast method masks the valve plate surface to spray shot particles, and then rinses the valve plate surface.

However, even if the valve is cleaned, there is a risk that the cutting particles on the surface of the valve plate cut by the short particles or the short particles themselves remain on the valve plate surface as foreign matter. If such foreign matter is mixed in the compressor, It caused the malfunction.

In addition, there is a problem that the machined surface of the surface is sharper, sharp and worn easily, and the surface of the machined surface is lowered than the existing surface, thereby increasing the possibility that the function of the pocket in which the oil stays is lost.

To solve this problem, a pattern for roughening was formed on the surface by a pressing method.

In this press-forming method, a pattern for roughening is previously formed in a metal mold at an intaglio angle, and the valve plate is pressed using a press apparatus to form a pattern for roughening in a necessary portion.

However, such a pressing method has a disadvantage in that it is difficult to realize various shapes because there is a possibility that peripheral portions are flexibly deformed by reaction during pressurization and there are limitations on the types of patterns that can be formed in the mold.

Further, when a part of the pattern of the mold is damaged, the whole mold must be removed and replaced, so that maintenance and repair are difficult.

Korea Patent No. 10-0536790

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to form a pattern having a plurality of roads on the surface of an object by punching the processing pin in the vertical direction while moving the processing pin in the horizontal direction, And it is an object of the present invention to provide a punching device for minimizing wear caused by friction and for improving the maintenance of the device, and a pattern processed using the same.

In order to achieve the above object, the present invention provides a punching device for improving roughness, comprising: a punching device for improving illumination, which forms a predetermined pattern of a plurality of dots on a discharge port of a valve plate for a compressor and a peripheral surface of a suction port A seating jig rotatably mounted on the base frame and having a seat on which a valve plate is disposed; A fixing jig for fixing the valve plate disposed in the seating jig to the seating jig and fixing the valve plate; A processing unit for forming a pattern by bending the surface of the valve plate while moving the other pins in the horizontal and vertical directions; Wherein the seating portion comprises at least two engagement protrusions inserted into the ejection port and the suction port, and the engagement protrusions are arranged in a circular shape concentric with the rotation center of the seating jig.

The fixing jig includes: a pressing plate disposed on an upper portion of the valve plate; A pressing cylinder for moving the pressing plate up and down; .

A circular conical shaped portion is formed at the lower end of the tangential pin so that its diameter decreases downward.

At the lower end of the tangential pin, a hexagonal conical shaped portion is formed.

The side inclination angle of the molding part is 30 ° to 170 °.

In order to achieve the above object, in a pattern formed by using a punching processing apparatus for improving roughness of the present invention, a pattern formed around a discharge port of a valve plate for a compressor and a surface of a suction port using a punching device, Wherein the dots are spaced apart from each other in a direction away from the discharge port and the suction port of the valve plate, wherein the interval between the discharge port and the suction port is different from the interval between the discharge port and the suction port, And the dots are formed to be in contact with or overlapped with each other.

A first section formed along the outer periphery of the discharge port and the suction port and having no line formed therein; A second section in which a plurality of lines are formed outside the first section; A third section in which a plurality of lines are formed outside the second section and the interval between the line interval and the dot is larger than the interval between the line and the dot in the second section; .

The dot is formed in at least one shape of a cone, a hexagonal horn or a polygonal horn, and the depth is 200 mu m or less.

A protrusion having a height of 100 mu m or less along the periphery of the dot is formed on the outside of the dot by the pressing force at the time of dot processing.

The dot punching apparatus of the present invention as described above and the pattern processed using the apparatus have the following effects.

The fixing jig 200 for pressing the valve plate 10 disposed in the seating jig 100 is provided so that the valve plate 10 is not lifted or released during processing and is leveled with the seating jig 100 Thereby increasing the machining accuracy and reducing the defect rate.

The seating jig 100 is rotated at a predetermined angle interval with respect to the center point and the seating unit 110 is disposed concentrically with the center point of the seating jig 100, So that the machining time can be shortened and the machining precision can be improved.

The seating part 110 formed of the fixing protrusions 111 is formed on the upper part of the seating jig 100 to guide the position where the valve plate 10 is fixed to facilitate the work, Thereby preventing the occurrence of defects in the product.

The molding part 311 is formed in a hexagonal shape so that the maximum number of dots D are formed in the same area so that the oil filled in the dots D is uniformly applied over the entire area, The safety of the pattern 20 is improved and the effect of minimizing the surface tension when rubbing against the lead is generated.

By minimizing the surface tension of the second section 22 in which friction occurs directly, noise and vibration can be minimized by increasing the interval between the lines L in the direction away from the discharge port 11 and the suction port 11 And in the third section 23, an effect of increasing the oil content is generated.

1 is a perspective view of a punching and processing apparatus for improving roughness according to an embodiment of the present invention,
FIG. 2 is a planar structural view of a punching device for improving roughness according to an embodiment of the present invention;
3 is a planar structural view of a punching processing apparatus for improving roughness according to another embodiment of the present invention
4 is a perspective view of a tangential pin of a punching processing apparatus for improving roughness according to an embodiment of the present invention,
5 is a perspective view of a tangential pin of a punching processing apparatus for improving illumination according to another embodiment of the present invention,
6 is a plan view of a pattern processed using a punching processing apparatus for improving illumination according to an embodiment of the present invention,
7 is a plan view of a pattern processed using a punching processing apparatus for improving illumination according to another embodiment of the present invention,
8 is a cross-sectional view of a dot formed by using a punching device for improving illumination according to an embodiment of the present invention.

FIG. 1 is a perspective view of a punching processing apparatus for improving roughness according to an embodiment of the present invention, FIG. 2 is a plan view of a punching processing apparatus for improving roughness according to an embodiment of the present invention, and FIG. Fig. 4 is a perspective view of a tangential pin of a punching processing apparatus for improving roughness according to an embodiment of the present invention, Fig. 5 is a perspective view of a tangent line according to another embodiment of the present invention, Fig. FIG. 6 is a plan view of a pattern processed by using a punching processing apparatus for improving roughness according to an embodiment of the present invention, and FIG. 7 is a plan view of a roughness according to another embodiment of the present invention. FIG. 8 is a sectional view of a dot formed by using a punching apparatus for improving illumination according to an embodiment of the present invention. FIG. 8 is a sectional view of a dot formed by using a punching processing apparatus.

1 to 4, a punching apparatus for improving roughness according to an embodiment of the present invention includes a seating jig 100, a fixing jig 200, a processing unit 300, and a height adjuster 400, .

The seating jig 100 is a jig on which the object to be machined, that is, the valve plate 10 is seated, is mounted on the upper portion of the base frame 500.

The valve plate 10 is used in a compressor or the like. The valve plate 10 is formed in a substantially disc shape, and has a suction port 11 connected to the suction chamber of the cylinder and a discharge port 11 connected to the discharge chamber.

The seating jig 100 is formed in a substantially disc shape and is rotatably mounted on the base frame 500 with a motor M connected thereto.

A seating portion 110 is formed on the upper surface of the seating jig 100 and includes a fixing protrusion 111 inserted into the discharge port 11 and the suction port 11 when the valve plate 10 is seated.

The fixing part 110 includes five fixing protrusions 111 protruding in a circular shape having the same diameter as that of the discharge port 11 and the suction port 11, (11) and the inlet (11), respectively.

Since the seating part 110 formed of the fixing protrusions 111 is formed on the seating jig 100 in this way, the position where the valve plate 10 is fixed is guided to facilitate the operation, It is possible to prevent an arbitrary movement in the horizontal direction, thereby reducing the occurrence of defective products.

In addition, the seating part 110 is disposed concentrically with the center point of the seating jig 100.

The seating jig 100 is rotated at predetermined angular intervals so that any one of the fixing protrusions 111 is disposed below the processing unit 300 to be described later.

More specifically, as shown in FIG. 2, when the seating part 110 is composed of five fixing projections 111, the seating jig 100 is rotated at intervals of 72 degrees, 111 are always arranged at the lower part of the processing unit 300. [

When the seating jig 100 is rotated at a predetermined angle with respect to the center point and the seating unit 110 is disposed concentrically with the center point of the seating jig 100, It is possible to reduce the moving range, shorten the machining time, and produce an effect of precisely machining.

The fixing jig 200 is for pressing the valve plate 10 disposed in the seating jig 100 in a downward direction and fixing it securely to the seating jig 100. Specifically, And a pressurizing cylinder 220.

The pressing plate 210 is disposed at an upper portion of the seating jig 100 and is formed in a substantially rectangular shape and has a length greater than the diameter of the seating jig 100 and a width greater than a diameter of the seating jig 100 And presses a part of the valve plate 10 when the valve plate 10 is lowered.

The pressure plate 210 is vertically moved by the pressure cylinder 220 and contacts the upper surface of the valve plate 10 when the valve plate 10 is lowered so that the valve plate 10 is tightly fixed to the seating jig 100.

The pressure cylinder 220 is a general pneumatic or hydraulic cylinder and is disposed at both sides of the pressure plate 210. The pressure cylinder 210 is installed between the pressure plate 210 and the base frame 500, The pressing plate 210 is lowered to press the valve plate 10 and the seating jig 100 is raised when the seating jig 100 rotates so that the seating jig 100 is rotatable.

Since the fixing jig 200 for pressing the valve plate 10 disposed in the seating jig 100 is provided as described above, the valve plate 10 is prevented from being lifted or released during processing, So that the machining accuracy is improved and the defect rate is lowered.

The processing unit 300 is a device for forming the pattern 20 by bending the surface of the valve plate 10 while moving the tangential pins 310 mounted at the bottom in a horizontal and vertical direction at a constant speed.

More specifically, the processing unit 300 reciprocally moves the tangential pins 310 in the vertical direction about 10 times in about one second such that the tangential pins 310 are horizontally reciprocated in a direction perpendicular to the discharge port 11 and the inlet 11, A plurality of circular concave dots D are formed at a predetermined interval around the discharge port 11 and the suction port 11 to form a pattern 20 by moving the discharge port 11 and the suction port 11 in the order of 10 to 80 mm.

The machining unit 300 drives the X and Y-axis stage stepping motors to move the tangential pins 310, and is driven by a program for machining the patterns 20 by CNC alone.

In addition, the processing unit 300 can adjust the depth of the dot D by adjusting the air pressure during vertical movement.

The processing unit 300 processes the periphery of one of the discharge port 11 or the suction port 11 of the valve plate 10 and then waits while the seating jig 100 rotates by a predetermined angle. When any one of the discharge ports 11 or the suction port 11 is disposed at the lower part, it is operated again to form the pattern 20 to be described later.

Meanwhile, the processing unit 300 is mounted on the height adjuster 400 and disposed on the seating jig 100,

The height adjuster 400 controls the gap between the seating jig 100 and the processing unit 300. The height adjuster 400 includes a guide frame 410 and a guide frame 410, And the processing unit 300 is mounted on the moving frame 420. The processing unit 300 is mounted on the moving frame 420,

On the other hand, the punching device of the present invention may be configured as an index-type automation system.

3, the seating unit 110 includes a plurality of valve plates 10 disposed along the circumference of the seating jig 100 so that the plurality of valve plates 10 can be disposed at the same time.

That is, as shown in FIG. 3, one of the seating portions 110 is composed of five fixing protrusions 111, and a total of seven valve plates 10 can be seated simultaneously in the seating jig 100 The seven seating portions 110 are circularly spaced apart by an angle of about 51 degrees.

A plurality of the processing units 300 are provided on the valve plate 10 disposed in the seating jig 100 according to the number.

Specifically, the processing units 300 are formed in a total of five, one on top of the seating unit 110.

Any one of the processing units 300 is set to form the pattern 20 only on the periphery of one of the suction port 11 or the discharge port 11 formed in one valve plate 10.

That is, the machining units 300 are formed on the upper portion of the seating part 110, and the positions of the tangential pins 310 are different from each other so that the patterns 20 are formed differently from each other.

Therefore, the parts to be processed by the five processing units 300 are set to be different from each other, and thereby, when the five valve plates 10 are simultaneously disposed on the seating part 110 of the seating jig 100, The pattern 20 can be formed in all five locations.

Specifically, the seating jig 100 is rotated at an interval of about 51 degrees, and one valve plate 10 is connected to the suction port 11 and the discharge port 11 The pattern 20 is formed at the periphery of the pattern 20,

Here, the other two of the seating portions 110 of the seating jig 100 are used to perform an operation of pulling out and reattaching the valve plate 10 by an operator.

Of course, the drawing and drawing operation of the valve plate 10 may be performed automatically by using a hydraulic system, not by manual operation, or by an automated system in the form of a conveyor.

A plurality of seating portions 110 are formed on the upper surface of the seating jig 100 so that a plurality of valve plates 10 can be mounted on the upper surface of the seating jig 100. When the seating jig 100 rotates, The pattern 20 is formed by the patterning process of the patterning device 20, thereby improving the productivity by automating the processing device more efficiently.

The tangential pins 310 are vertically long and are pressed to move the discharge port 11 of the valve plate 10 and the periphery of the suction port 11 to the lower end of the valve plate 10, A forming portion 311 is formed.

As shown in FIG. 4, the forming part 311 is formed in a conical shape whose tip diameter gradually decreases in a downward direction, and rounded at its tip end.

Further, as shown in Fig. 4, the side inclination angle of the forming portion 311 is 90 degrees.

Of course, the inclination angle a of the molding part 311 may be 60 degrees or 120 degrees depending on the case, and when the inclination angle a is 60 degrees, the diameter of the dot D is small and the depth is deep The diameter of the dot D becomes large and the depth becomes shallow.

The shaping unit 311 forms the concave circular dot D on the valve plate 10 by strongly lowering the tangential pins 310 downward by the processing unit 300, So as to form a variety of the patterns 20 of the plurality of dots D. [

Here, the dot D of the pattern 20 is filled with oil, and the surface roughness of the valve plate 10 is increased so that the surface tension of the oil during friction between the lead of the compressor cylinder and the valve plate 10 It functions to reduce noise and vibration.

In some cases, as shown in FIG. 5, the forming part 311 may be formed in a hexagonal shape.

Specifically, the forming portion 311 is formed in a hexagonal shape in cross section, and is formed to be gradually rounded in a downward direction while having its rounded end rounded.

When the valve plate 10 is pressed, the hexagonal-shaped concave dots D are formed.

When the shape of the dot D is hexagonal, the surplus space between the dot D and the dot D in the pattern 20 to be described later formed on the valve plate 10 is minimized, It is possible to form the dot (D) as much as possible in the area.

By forming the molding part 311 in the shape of a hexagonal horn, the maximum number of dots D are formed in the same area so that the oil filled in the dots D is uniformly applied over the entire area, The safety of the pattern 20 is improved, and the effect of minimizing the surface tension when rubbing against the lead is generated.

Of course, the molding part 311 may be modified in various ways such as a triangular pyramid, a quadrangular pyramid, or a pyramidal pyramid in addition to a cone or a hexagonal pyramid.

6, the pattern 20 formed by the processing unit 300 has a plurality of dots D arranged along the outer periphery of the discharge port 11 and the suction port 11, And the lines L are spaced apart from each other in a direction away from the discharge port 11 or the suction port 11, (11) and the suction port (11).

Here, the dot D may be formed in a concave conical shape, but in the embodiment of the present invention, it is formed in a concave hexagonal shape.

Specifically. As shown in FIG. 6, the pattern 20 includes a first section 21, a second section 22, and a third section 23.

The first section 21 is formed along the outer periphery of the discharge port 11 or the suction port 11 and is a section in which the line L is not formed.

That is, the first section 21 is formed in a ring shape in which the surface is not machined in a direction starting from the outer periphery of the discharge port 11 or the suction port 11 and gradually getting farther away.

The width of the first section 21 is about 0.5 mm.

The second section 22 is a section where a plurality of lines L are formed outside the first section 21 and a plurality of dots D are formed along the outer circumference of the first section 21, So as to form a ring-shaped pattern 20.

Here, as shown in FIG. 6, the dots D are arranged so that their outer edges are in contact with each other, and may overlap each other as the case may be.

The width of the second section 22 is about 1.0 mm.

The second section 22 rubs against the lid of the compressor cylinder, and oil is applied to generate noise and vibration. However, since the surface of the second section 22 is rugged due to the shape of the pattern 20, Minimize noise and vibration.

The third section 23 has a plurality of lines L formed outside the second section 22 and the interval of the lines L is longer than the interval of the lines L of the second section 22, Big.

Also, as shown in FIG. 6, the dots D of the third section 23 are disposed in contact with each other.

The third section 23 is used as a section filled with oil without friction with the leads, and is formed to have a width of about 2.1 mm.

It is preferable that the interval between the lines L of the second section 22 is 0.1 to 0.2 mm and the interval between the lines L of the third section 23 is 0.2 to 0.5 mm.

Meanwhile, the pattern 20 may be formed only in the second section 22 and the third section 23 as the case may be.

In this case, about 0 to 5 lines (L) are arranged in the second section 22 starting from the outer periphery of the discharge port 11 or the suction port 11 in the outward direction, (23) consists of about 15 lines (L).

Of course, the number of the lines L is freely adjustable.

Further, as shown in Fig. 7, The dot (D)  Is formed in a concave conical shape, and the second section 22 The dot (D)  And the third section 23 is disposed so as to be in contact with each other, The dot  They can be arranged so as to overlap each other.

The surface tension of the second section 22 in which friction occurs directly is minimized and the noise and vibrations are reduced by increasing the distance between the line L and the discharge port 11 and the suction port 11. [ And an effect of increasing the oil content in the third section 23 is generated.

Further, the pattern (20) When the dot (D)  The surface tension is minimized in the friction with the leads, thereby further reducing the generation of noise and vibration.

On the other hand, as shown in Fig. 8, the dots (D) constituting the line (L) are formed in a concave manner only in the processed portion. Since the unprocessed surface is flat, So that a constant height can be maintained.

Here, the dot D is concavely formed in the shape of a hexagonal horn, and its depth d1 is 100 mu m or less.

Of course, it may be formed as a polygonal cone such as a cone or other triangle, quadrangle or the like depending on circumstances.

In addition, the periphery of the dot D is formed with protrusions D1 which are convexly protruded by the reaction at the time of processing.

The protrusion D1 protrudes along the circumference of the dot D and has a height d2 of 50 m or less.

By forming the projecting portion D1 along the outer periphery of the dot D as described above, the existing surface is worn to prevent the height from being lowered, and the surface tension is increased to reduce the surface tension.

The punching processing method for forming the pattern 20 may include the steps of operating the processing unit 300 such that the tangential pins 310 are moved horizontally along the outer circumference of the discharge port 11 and the inlet 11, And vertically reciprocating at a constant speed in the vertical direction while moving.

Here, the moving speed of the machining unit 300 in the vertical direction is the same as the distance from the discharge port 11 and the suction port 11, and the horizontal moving speed of the tangential pin 310 is increased.

That is, the machining unit 300 reciprocates the tangential pins 310 in the vertical direction about 10 times in a second, as in a general steering apparatus, and in the second section 22, In the third section 23 to about 30 to 80 mm.

As described above, in the punching method according to the embodiment of the present invention, various patterns 20 can be formed at a speed without replacing equipment such as the tang pin 310, thereby improving the productivity and efficiency.

A punching device for improving illumination according to an embodiment of the present invention having the above configuration and a pattern processed using the device are formed by forming a plurality of dots D with the tangent pins 310 using the processing unit 300 The surface of the valve plate 10 is processed so that the surface of the valve plate 10 is not sharpened and the surface of the valve plate 10 is smoothly curved so that it can be prevented that the valve plate 10 is easily worn when rubbing against the lead, A protrusion D1 is formed in the periphery of the dot D to prevent the height from being lower than that of the existing surface.

Particularly, since the machined portion is formed in a hexagonal shape, a maximum number of the dots D can be formed in a predetermined area, thereby maximizing the function of the oil pocket, minimizing surface tension, and further reducing noise and vibration .

In addition, various patterns 20 can be formed by manipulating the program of the processing unit 300, and the tangential pins 310 can be easily replaced, which facilitates maintenance and repair. So that various dot (D) shapes can be formed, thereby improving the usability.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims something to do.

100: seating jig 110:
111: Fixing projection 200: Fixing jig
210: pressure plate 220: pressure cylinder
300: machining unit 310:
311: forming part 400: height adjuster
410: guide frame 420: moving frame
500: Base frame 10: Valve plate
11: inlet, outlet 20: pattern
21: first section 22: second section
23: third section D: dot
D1: protrusion L: line

Claims (9)

A punching machine for improving roughness which forms a predetermined pattern of a plurality of dots on a discharge port of a valve plate for a compressor and a peripheral surface of a suction port,
A seating jig rotatably mounted on the base frame and having a seat on which a valve plate is disposed;
A fixing jig for fixing the valve plate disposed in the seating jig to the seating jig and fixing the valve plate;
A processing unit for forming a pattern by bending the surface of the valve plate while moving the other pins in the horizontal and vertical directions; , ≪ / RTI >
Wherein the seating portion comprises at least two engagement protrusions inserted into the ejection port and the suction port, and the engagement protrusions are arranged in a circular shape concentric with the rotation center of the seating jig.
The method according to claim 1,
In the fixing jig,
A pressure plate disposed on an upper portion of the valve plate;
A pressing cylinder for moving the pressing plate up and down; And a punching device for improving roughness for improving surface roughness.
The method according to claim 1,
And a circular conical shaping portion whose diameter is reduced downward is formed at a lower end of the tangential pin.
The method according to claim 1,
And a hexagonal conical shaping portion is formed at the lower end of the tangential pin.
5. The method according to any one of claims 3 to 4,
Wherein a side inclination angle of the molding part is 30 ° to 170 °.
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