KR100851293B1 - Oil pump vane and making methord thereof and making apparatus thereof - Google Patents

Abstract

An oil pump vane and a manufacturing method thereof and a manufacturing apparatus thereof are provided to quickly process round parts by forming the round parts via the press reciprocating. A method for manufacturing an oil pump vane comprises the steps of: an initial molding step(S100) of correcting a type of a material; a press cutting step(S200) of cutting the corrected material by a press process; a round shaping step(S300) of inserting the cut material into a round mold whose inner portion is rounded, and forming the round parts at two sides of the material by pressing the two sides of the material via reciprocating of the round mold; a thickness grinding step(S500) of grinding the front and rear sides of the material wherein the round parts are formed; an overall length grinding step(S600)of grinding the upper and lower sides of the material wherein the grinding for the front and rear sides is completed; and a barrel step(S700) of grinding a rough surface of the ground material.

Description

Oil pump vane and its manufacturing method and manufacturing apparatus {Oil pump vane and making method

1 is an exploded perspective view showing the configuration of a general oil pump.

Figure 2 is a plan view showing a state in which the vanes of the general oil pump is mounted.

Figure 3 is a perspective view showing the appearance of a typical oil pump vane.

Figure 4 is a block diagram showing a method of manufacturing an oil pump vane according to the present invention.

5 is a perspective view showing the configuration of an apparatus for producing an oil pump vane according to the present invention;

6 is an exploded perspective view showing the configuration of a round mold, which is a main component of an apparatus for manufacturing an oil pump vane according to the present invention;

Explanation of symbols on the main parts of the drawings

60. Bain 62. Round

100. Base plate 120. Fastening member

140. Guide member 200. Feed means

220. Receiving part 240. Information part

300. Press 320. Frame

340. Control Unit 360. Operation Section

362. Rod 400. Moving Mechanism

420. Guide 440. Push Rod

500. Round mold 520. Receiving groove

540. Guide posts 560. Elastic means

562. Compression Springs 564. Spring Loads

600. Upper mold 610. Upper block

612,712. Recess 620,720. Molding member

622,722. Molding section 630. Upper plate

632. Upper guide part 640. Upper receiving groove

700. Lower mold 710. Lower block

730. Lower plate 732. Lower guide

The present invention relates to an oil pump vane, and more particularly, to an oil pump vane, a method of manufacturing the same, and a manufacturing apparatus for forming a round part by tapping a wire-shaped raw material by rolling after correcting a shape.

In general, the oil pump is a type of hydraulic equipment used for oil supply and oil supply, and is used to lighten the operating force of the steering oil of the automobile power steering by the pressure generated when the oil pump is driven.

Various pumps such as vane type pumps, rotary pumps, and slipper pumps are used for power steering oil pumps in automobiles, but vane type pumps are most used.

Accordingly, the configuration of the vane-type pump among the oil pumps will be described below.

1 is an exploded perspective view illustrating a configuration of a general oil pump, and FIG. 2 is a plan view illustrating a state in which a vane of a general oil pump is mounted. And, Figure 3 is a perspective view showing the appearance of a typical oil pump vane.

As shown in these figures, the oil pump is externally formed by the pump housing 10 and the pump cover 50, and the pump shaft 12 is installed in the inner center of the pump housing 10. One end of the pump shaft 12 is protruded to the outside of the pump housing 10, the protruding end is mounted with a pulley 11 that receives the rotational force of the engine.

On the other hand, the cam housing 20 is formed in the inner side of the pump housing 10 is formed in a substantially elliptical shape to form a cam hole 22 for receiving the rotor 30, the dowel pin on one side of the cam ring 20 Side plates 40 fixed to the cam rings 20 are mounted at 45 and 46 so that the side plates 40 and the cam rings 20 are accommodated inside the pump housing 10.

The rotor 30 is coupled to the pump shaft 12 is configured to rotate together with the rotation of the pump shaft 12, a plurality of the outer circumferential surface of the rotor 30 to form a space for receiving oil The vane 60 is mounted.

The vanes 60 are inserted in the center direction of the rotor 30 from the outer circumferential surface of the rotor 30, and a plurality of vanes 60 are mounted at regular intervals along the outer circumferential surface of the rotor 30. In addition, the vane 60 is mounted on the inside and outside of the rotor 30 so as to be slidable, and one end of the vane 60 protruding to the outside of the rotor 30 by the radial movement of the vane 60 is In contact with the inner circumferential surface of the cam ring 20 to form a space for accommodating the oil.

Meanwhile, the vane 60 is formed in a rectangular plate shape having a predetermined area as shown in FIG. 3, and has one end inserted into the rotor 30 and an inner circumferential surface of the cam ring 20 opposite thereto. At one end of contact, a rounded portion is formed to have a predetermined curvature.

In the vane 60 manufacturing method, after cutting and heat-treating a rectangular bar or plate-shaped raw material, it is common to grind each surface and to form the round part 62 by grinding | polishing.

However, the prior art as described above has the following problems.

In the manufacturing method of the vane 60, when the rounded portion 62 of the vane 60 is molded by the polishing operation, not only is it difficult to work quickly due to the characteristics of the polishing operation, but also when the abrasive stone is worn, There is a problem in that productivity is lowered, such as high production and maintenance costs such as replacement.

An object of the present invention is to solve the problems of the prior art as described above, to provide a method for producing an oil pump vane to form a round part by pressing the wire-shaped raw material by pressing the shape after correction. .

Another object of the present invention is to provide an oil pump vane manufacturing apparatus for accommodating an oil pump vane in a round mold of a corresponding shape and pressing the press to form a round part.

Still another object of the present invention is to provide a vane of an oil pump having a round part formed by being pressed by a press into a round mold body.

The vane manufacturing method of the oil pump of the present invention for achieving the object as described above, in the manufacturing method of the vane used in the oil pump, the initial forming step of correcting the shape by rolling and drawing the material; A press cutting step of cutting the corrected material by press working; A round forming step of inserting the cut material into a round mold having an inner portion rounded, and pressing both sides of the material by reciprocating the round mold to form round portions on both sides of the material; A thick polishing step of polishing both front and rear surfaces of the material having the round portion formed thereon; Full length polishing step of polishing the upper and lower sides of the material is completed polishing the front and rear sides; Barrel step of grinding the rough surface of the polished material.

In the initial forming step, the high-speed coated oral (SKH-51) material of the wire or round bar shape is rolled to correct the shape of the material into a plate-shaped on both sides.

In the initial molding step, the material is continuously rolled out to correct the straightness in the longitudinal direction to correct the straightness.

In the round forming step, both sides of the first round material formed in the straightening step are pressed by the mold, thereby forming a round part having a straightness corrected.

After the round forming step, a heat treatment step of quenching and tempering the material in a high temperature vacuum state is performed.

In addition, the compressor vane of the present invention for achieving the above object is characterized in that it is manufactured by the above-described method of manufacturing the oil pump vane.

In addition, the apparatus for producing a compressor vane according to the present invention for achieving the above object, in the oil pump vane manufacturing apparatus for forming a round portion of the compressor vane, a supply for continuously supplying a plurality of materials cut to a predetermined size Way; A press provided at one side adjacent to the supply means and provided with a rod reciprocating; A round mold installed in the press and configured to receive a material supplied by the supply means and press both sides of the material by reciprocating the rod to form a round part; It is provided on one side of the round mold, and includes a moving mechanism for moving for processing and taking out the material.

The round mold is composed of an upper mold and a lower mold separated vertically, the upper mold and the lower mold is formed with a receiving groove for receiving the rounded surface of the material to face the reciprocating direction of the rod.

The round mold, the upper mold for receiving the upper portion of the material; A lower mold provided below and spaced apart from the upper mold and accommodating a lower portion of the material; A guide post inserted into the upper mold and the lower mold to guide the relative motion of the upper mold and the lower mold; Interposed between the upper mold and the lower mold is configured to include an elastic providing means for providing elasticity so that the upper mold and the lower mold is spaced apart from each other.

The upper mold is provided with an upper accommodating groove for accommodating an upper portion of the material and having an end portion recessed to have a shape corresponding to the round portion, and the lower mold receives a lower portion of the material, and the end portion corresponds to the round portion. The lower accommodating groove is formed to have a shape to be.

The upper accommodating groove and the lower accommodating groove are recessed in the reciprocating direction of the rod.

The upper accommodating groove and the lower accommodating groove are formed to open to both sides of the upper mold and the lower mold.

The rod is configured to tap the upper surface of the upper mold by reciprocating motion.

The supply means includes a receiving portion for receiving the material; A guide portion extending from the upper portion of the accommodation portion to the open side of the round mold to guide the material to the round mold, and the end portion of the guide portion is formed to extend in the direction in which the accommodation groove is opened. Guide it to be inserted inward.

The moving mechanism includes: a guide mounted to the side of the round mold; A push rod for reciprocating at one side of the guide to push the material into the receiving groove of the mold.

According to the present invention having such a configuration, it is possible to expect the effect of improving the productivity of the oil pump vanes.

Hereinafter, an oil pump vane according to the present invention having the configuration as described above, a manufacturing method thereof, and a manufacturing apparatus thereof will be described in detail.

In addition, since the oil pump vane according to the present invention is the same as the vane of the general vane pump, the detailed description thereof will be omitted and the same parts will be described using the same reference numerals.

4 is a block diagram illustrating a method of manufacturing an oil pump vane according to the present invention. As shown in the drawing, first, raw materials are prepared for the production of the oil pump vane 60.

As the raw material for manufacturing the vane 60, a high speed coating steel (SKH51) which is generally used is used, and a wire or wire having a circular cross section is used. It is preferable that such a raw material is a wire rod having a diameter of approximately 5.5 mm is employed, it is preferable to be prepared in a wound state for the convenience of continuous supply.

Such raw materials are automatically supplied through a feeder, and the raw materials to be automatically supplied are corrected in shape and straightness by rolling and drawing.

Looking at this in more detail, the raw material having a predetermined diameter is formed into a plate shape having a predetermined thickness by rolling, the shape is corrected to correspond to the shape of the vanes 60 by passing through the die in this state. The straightness is corrected by correcting the longitudinal bending.

That is, the primary shape is formed by rolling the raw material, and in such a state, it is processed to have a dimension corresponding to the thickness and width of the vane 60 by drawing through the die. In addition, by rolling the wire rod having a circular cross section, both sides maintain a shape having a predetermined curvature, and rounded to a predetermined curvature so that the shape of the round portion 62 can be formed primarily while passing through the die. Is formed.

Of course, the width and thickness of the material to be rolled and drawn may be preferably formed to have some margin in consideration of the polishing process to be carried out later. [Initial forming step (S100)]

The drawn material can be continuously supplied to the press apparatus adjacent to the die due to the shape of the shape formed long in the longitudinal direction, and cut by the longitudinal dimension of the vane 60 by the press apparatus.

That is, when the material that has undergone the initial molding step (S100) is continuously supplied to the mold of the press apparatus, the material is cut into a predetermined size by the vertical movement of the press apparatus. At this time, the mold may be cut to a rather relaxed length than the longitudinal dimension of the vane 60 when the vane 60 is cut.

Therefore, the primary processing of the longitudinal dimension of the vane 60 is completed by press-cutting the material that has undergone the initial molding step (S100), and the full-length polishing step to be described below by the primary dimension processing ( In S600), the polishing operation can be completed more quickly. [Press cutting step (S200)]

The plurality of raw materials cut by the press apparatus are formed with round parts 62 on both sides of the vanes 60 by an oil pump vane manufacturing apparatus to be described in detail below.

Looking at this in more detail, a plurality of cut material is accommodated in the round mold 500, the round mold 500 is moved up and down by the rod 362 reciprocating up and down inside the round mold 500 Press both sides of the material accommodated in the.

At this time, the inner side of the round mold 500 is formed in a shape corresponding to the shape of the round part 62 is formed with a receiving groove 520 for accommodating the material, and the rounded inner end of the receiving groove 520 In the initial molding step (S100), the supply of the material is made so that both ends of the round-shaped material is in contact with each other.

In this state, a part of the round mold 500 is reciprocated by the rod 362, and thus the round mold 500 presses both sides of the rounded material of the received material, and rounds on both sides of the material. The portion 62 can be formed.

In this case, the round mold 500 is reciprocated and the rounded portion of the material accommodated inside the round mold 500 is on the same extension line so that the round mold of the material is reciprocated by the round mold 500. The part is configured to be pressed.

The round parts 62 on both sides of the material formed by being pressed by the round mold 500 are processed relatively quickly due to the characteristics of the processing pressed by the mold, as well as protrusions or burrs on the surface of the round part 62. This is removed and corrected so that the straightness of the round portion 62 is approximately 1 탆 or less.

On the other hand, the round portion 62 may be preferably formed by the rod 362 reciprocating once, but the round portion 62 by reciprocating a plurality of times depending on the strength or size of the material. May be formed.

In addition, on one side of the round mold 500, the supply means 200 for continuously supplying the press-cut material and the movement to the round mold 500 of the material for processing and the movement for taking out the finished material The mechanism 400 is further provided so that the forming work of the round part 62 can be continuously performed. [Round Formation Step (S300)]

After the molding of the round part 62 is completed in the round forming step (S300), the heat treatment is performed, and the surface property of the vane 60 is improved by the heat treatment operation to improve wear resistance. Friction coefficient can be reduced.

That is, the material that has undergone the round forming step (S300) is quenched in a high-temperature vacuum state and then sub-zeroed, and then tempered. This improves the hardness of the material as well as excellent surface properties can be improved wear resistance.

Of course, such a heat treatment operation may be omitted, if necessary, may be performed after the thickness polishing step (S500) and the full-length polishing step (S600) to be described below. [Heat Treatment Step (S400)]

Next, the heat treated material is polished to a thickness surface, that is, front and rear surfaces. In this case, both surfaces of the material may be polished at the same time, and a plurality of the materials may be continuously supplied and polished. If necessary, the materials may be polished by various methods, such as polishing a plurality of materials simultaneously.

In addition, the material is polished in order of roughing and finishing each of the front and rear, in this case, the amount to be polished is each less than approximately 0.1mm, the deviation of the thickness dimension of the material is preferably processed to be within 2㎛. something to do. [Thickness polishing step (S500)]

After the thickness polishing is completed, the upper and lower sides of the material, that is, the electrical parts are polished. In the full length polishing, the upper and lower surfaces may be polished at the same time as in the thickness polishing, and the processing is performed so that the upper and lower sides of the electric field part, that is, the upper and lower sides of the material, have a deviation within about 2 μm through the order of roughing and finishing. do. [Full length polishing step (S600)]

After the full-length polishing step (S600), it may be possible to perform a salt bath nitriding treatment to form a nitride layer on the surface of the material as necessary. The salt bath nitriding treatment is carried out in the same manner as the general salt bath nitriding treatment.

That is, after preheating for about 30 minutes at a temperature of about 300 ℃ ± 10 ℃ for the nitriding treatment, and nitriding for about 70 minutes at a temperature of about 573 ℃ ± 3 ℃, through this material The nitride layer having a level of approximately 42 to 47 µm is formed on the surface of the substrate.

Next, after completing the polishing process, the material is placed in a polishing tank loaded with rough barrel and finished barrel at a ratio of about 4: 6 in order to barrel the material, and a vortex type barrel polishing machine for barrels. It will run for about 30 minutes. [Barrel stage (S700)]

After the surface treatment is completed by barrel-processing the material, washing and full inspection are performed to complete the vane 60 of the oil pump. That is, the manufacturing of the vane 60 is completed by the above-described manufacturing method.

Meanwhile, the oil pump vane 60 according to the present invention has a round part 62 formed by the oil pump vane manufacturing apparatus according to the present invention. Hereinafter, the oil pump vane manufacturing apparatus will be described with reference to the accompanying drawings. Let's look at it in more detail.

5 is a perspective view showing the configuration of the oil pump vane production apparatus according to the present invention, Figure 6 is an exploded perspective view showing the configuration of a round mold, which is the main configuration of the oil pump vane production apparatus according to the present invention.

As shown in these figures, the oil pump vane manufacturing apparatus as a whole comprises a supply means 200, a press 300, a round mold 500 and a moving mechanism 400, these components forming a lower surface The base plate 100 is mounted.

Looking at each of the configuration in more detail, the supply means 200 is to supply a material cut to a predetermined length in the press-cutting step (S200) to the round mold 500 to be described in detail below, It consists of a cylindrical receiving portion 220 having a volume and a guide portion 240 extending from the upper portion of the receiving portion 220 to an adjacent position of the round mold 500.

The accommodating part 220 is provided with a rotating device (not shown) therein so that the materials provided in the accommodating part 220 can be rotated, and the material rotating in the accommodating part 220 is It is possible to move continuously along the guide portion 240 formed in a spiral shape.

The configuration of the supply means 200 is similar to a general supply device, but one side of the guide portion 240, that is, the end of the guide portion 240 adjacent to the round mold 500 is in a state in which the material is erected. It is formed extending in the vertical direction corresponding to the extending direction of the receiving groove 520 to be described below to be inserted into the round mold 500.

That is, the material supplied by the guide portion 240 can be placed at a position corresponding to the receiving groove 520 at the end of the guide portion 240 is easy by the moving mechanism 400 to be described below. It can be inserted into the inside of the round mold 500.

On the other hand, the press 300 is provided on one side adjacent to the supply means 200. The press 300 is to provide the power to form the round portion 62 to the material by moving the round mold 500 up and down, it is preferable that an electric press of a relatively small size and capacity is preferably employed. Depending on the hydraulic press may be employed.

The press 300 is a skeleton formed by a cylindrical frame 320 extending upward from one side of the base plate 100, the operation of the press 300 on one side of the frame 320 The control unit 340 to be adjusted is mounted.

In addition, the front of the frame 320 is provided with an operating unit 360 to move up and down. The operation unit 360 is installed and fixed to the frame 320, it is formed long and vertically configured to be movable up and down.

The lower end of the operating unit 360 is provided with a cylindrical rod 362 having a predetermined diameter. The rod 362 is fixedly mounted at the lower end of the operating part 360 to move up and down together during the vertical reciprocation of the operating part 360, and is in contact with the upper portion of the round mold 500.

The lower end of the rod 362 is formed integrally with the upper portion of the round mold 500 so that the upper portion of the round mold 500, that is, the upper mold 600 moves up and down according to the up and down movement of the rod 362. The material is pressed to form the round part 62.

Meanwhile, the rod 362 may be formed separately from the upper portion of the round mold 500, that is, the upper mold 600. In this case, the rod 362 moves downward so that the upper mold 600 is moved. Press downward to indirectly press the material inside the round mold 500, thereby forming the round part 62.

The round mold 500 is formed below the rod 362. The round mold 500 receives the material supplied by the supply means 200 to form a round part 62 in the material, and is formed to be capable of vertically reciprocating by the rod 362. The detailed configuration of the round mold 500 will be described below.

The round mold 500 is fixed by the fixing member 120 provided on the base plate 100. The fixing member 120 is for fixing the round mold 500 and is provided on an upper surface of the base plate 100 to provide a space for accommodating the round mold 500. One side of the fixing member 120 is provided with a restraining member 122 that can be selectively bound by the bolt (B) to enable a selective fixed mounting of the round mold (500).

On the other hand, the side of the round mold 500, the moving mechanism 400 is provided. The moving mechanism 400 is for supplying the raw material supplied by the supply means 200 to the round mold 500 and extracting the raw material from which the round part 62 is formed, from the round mold 500. It is composed of a guide and a push rod 440.

The guide 420 forms a body of the moving mechanism 400 and is mounted on the base plate 100 and configured to guide the left and right reciprocating motions of the push rod 440 for selectively pushing the material. .

The push rod 440 is formed in the shape of a rod having a predetermined length and mounted to the guide 420, and the left and right reciprocating when the material is supplied to the side of the round mold 500 by the supply means 200 The material is to be inserted into the receiving portion of the round mold 500.

In addition, the push rod 440 is pushed by the round mold 500 can be taken out of the round mold 500 by pushing left and right again by reciprocating the material in which the round portion 62 is formed. It is configured to.

An ejection guide member 140 is provided on the left side (as shown in FIG. 5) of the round mold 500 opposite to the moving mechanism 400. The extraction guide member 140 is pushed by the push rod 440 so that the material taken out of the round mold 500 can be guided to a separate container, and is formed in a pipe shape having a semicircular cross section.

On the other hand, with reference to Figure 6 with respect to the detailed configuration of the round mold 500 as follows.

As shown in the figure, the round mold 500 is formed by separating the upper and lower symmetrical upper and lower, and consists of the upper mold 600 and the lower mold 700 to form a lower, respectively.

The upper mold 600 has an outer shape formed by the upper block 610 of a substantially rectangular parallelepiped shape, and accommodates the upper portion of the material by the molding part 622 and the upper plate 630 which will be described below. The upper accommodating groove 640 forming the 62 is formed.

Looking at this in more detail, the lower portion of the upper block 610 is formed with a recessed portion 612 recessed upward. The depression 612 is formed in a lengthwise direction at an approximately center portion of the upper block 610 and extends from the front to the rear of the upper block 610 (as shown in FIG. 6).

The depression 612 is formed with a molding member 620 for molding the round portion 62 in the material for the processing. The molding member 620 is formed in a shape corresponding to the mounting portion 612 to be mounted, and the upper surface of the molding member 620 to have a curvature corresponding to the curvature of the round part 62. A recessed molding part 622 is formed.

Therefore, when the material for molding the round part 62 is accommodated in the round mold 500 and processed, the molding part 622 is primarily formed at one side of the material in the initial molding step (S100). The round part 62 is formed by pressing the rounded surface.

On the other hand, the forming member 620 can be selectively mounted to the depression 612 of the upper block 610 by the bolt (B) fastened in both front and rear sides. That is, the molded part material 620 is configured to be replaced with an appropriate one according to the curvature of the round part 62 to be formed.

In addition, an upper plate 630 is provided on the lower surface of the upper block 610. The upper plate 630 forms a lower surface of the upper mold 600, and the upper portion of the material is stably received to guide the rounded upper portion of the material to be in contact with the molding part 622.

That is, the upper plate 630 is formed in a rectangular plate shape having an area corresponding to the bottom surface of the upper block 610, the upper portion 630 and the upper portion of the upper plate 630 corresponding to the upper portion 630 is approximately The guide part 632 is formed to be opened.

The upper guide part 632 is formed so as to open from the front end to the rear end of the substantially central portion of the upper plate 630 so that the upper portion of the material can be inserted therein, so that the upper plate 630 is separated into left and right sides. do.

In addition, the opened ends of the upper guide part 632 are formed to be stepped upward in a shape symmetrical with each other, and the lower guide part 732 to be described in detail below in the stepped part of the upper guide part 632. Is formed to be inserted.

Thus, the receiving groove 520 for accommodating the upper portion of the material by the upper guide portion 632 of the upper plate 630 and the forming portion 622 of the forming member 620 and to form the round portion 62 That is to form a part of the upper receiving groove 640.

On the other hand, the lower mold 700 is provided below the upper mold 600. The lower mold 700 is configured to be substantially the same in overall shape and structure with the upper mold 600. That is, the lower mold 700 has an external shape formed by a lower block 710 having a rectangular parallelepiped shape, and the size and shape of the lower mold 700 is only formed in the recess 712 recessed downward on the upper surface of the lower block 710. It is formed to correspond to the upper mold 600.

A molding member 720 is accommodated inside the recess 712, and a molding part 722 is formed to be recessed downward on an upper surface of the molding member 720 to form a round part 62 below the material. Is formed. In addition, the forming member 720 is selectively fixed to the lower block 710 by a bolt (B).

As described above, most of the configuration of the upper mold 600 is different from only the configuration of the upper mold 600, and is formed in the same manner, and thus a detailed description thereof will be omitted.

However, the lower plate 730 is provided on the upper surface of the lower block 710. The lower plate 730 receives the lower portion of the material and guides the round part 62 to be formed at the lower end of the material, thereby forming an upper surface of the lower mold 700.

An approximately lower portion of the lower plate 730 is formed such that the lower guide portion 732 into which the lower portion of the material is inserted is opened. The lower guide part 732 extends from the front end of the lower plate 730 to the rear end of the lower part 730 so that the lower plate 730 is left and right separated.

The open end of the lower guide part 732 is bent vertically upward and extends to an acceptable height in the stepped portion of the upper guide part 632. That is, the lower guide part 732 is inserted into the upper guide part 632 when the upper mold 600 moves up and down to prevent deformation such as buckling of the material.

As described above, the lower receiving groove 740 for accommodating the lower part of the material by the molding part 722 of the molding member 720 mounted on the lower block 710 and the lower guide part 732 of the lower plate 730. ) Can be formed.

The upper accommodating groove 640 and the lower accommodating groove 740 may be formed to correspond to the vertical length of the completed vane 60, and is formed to extend from the front end to the rear end of the round mold 500. The push rod 440 of the mechanism 400 is formed to enable the withdrawal / entry of the material.

On the other hand, the four corners of the upper surface of the lower mold 700 and the four corners of the lower surface of the upper mold 600 corresponding to the guide post 540 having a predetermined length is mounted. The guide post 540 is for guiding the upper mold 600 reciprocating up and down, is formed in a cylindrical shape having a predetermined length, the upper and lower inserts in the upper mold 600 and the lower mold 700, respectively. It is configured to be.

On the other hand, the left and right central portion of the upper surface of the lower mold 700 and the left and right central portion of the lower surface of the upper mold 600 corresponding to the elastic providing means 560 is provided. The elastic providing means 560 is to provide an elastic that the upper mold 600 pressed by the rod 362 can move upwards and return to its original position when the external force by the rod 362 is removed. For the purpose, it is composed of a compression spring 562 and the spring rod 564.

Looking at this in more detail, the compression spring 562 is accommodated in the upper mold 600 and the lower mold 700, respectively, while being inserted into the spring rod 564, the upper and lower. At this time, although not shown, at one side of the upper mold 600 accommodating the compression spring 562, a stepped part supporting an upper end of the compression spring 562 so as to compress the compression spring 562. It will be preferred to form).

Therefore, the compression spring 562 will be compressed when the upper mold 600 moves downward, and the compression spring 562 is guided by the spring rod 564 so that the compression spring 562 is not buckled and is stable. Can be compressed. In addition, when the force of the rod 362 pressing the upper mold 600 is lost, the upper mold 600 is movable upward by elasticity for restoring the compression spring 562.

Looking at the operation of the oil pump vane manufacturing apparatus having such a configuration as follows.

When a plurality of materials cut to a predetermined length by press cutting are put into the receiving portion 220 of the supply means 200 and power is applied, the rotating device inside the receiving portion 220 operates to operate the raw materials. Will rotate.

At this time, the material is moved along the guide portion 240 formed in a spiral shape in the upper portion of the receiving portion 220, a plurality of materials are continuously moved to push each other through the guide portion 240 Continuous supply of materials is possible.

The material moving through the guide portion 240 is formed by the shape of the end of the guide portion 240 vertically from the top to the bottom, the round mold 500 by being formed to the side of the round mold 500 It is supplied in the form of standing on the side of).

When the material is located in the side of the round mold 500, more specifically in the right side of the receiving groove (520) (see Fig. 5), the push rod 440 of the moving mechanism 400 is Operation to push the material to the left side so that the material can be accommodated in the receiving groove 520 of the round mold 500.

In the state where the material is accommodated in the receiving groove 520, the upper portion of the material is accommodated in the upper receiving groove 640 of the upper mold 600, the lower portion of the material is the lower receiving groove of the lower mold 700 It is in a state accommodated in 740.

At this time, the direction of the material is accommodated so that the round end of the material is adjacent to the molding portion 722 of the upper mold 600 and the lower mold 700, and the up and down reciprocating direction of the upper mold 600 It is accommodated inside the receiving groove 520 to be on the same extension line.

When the press 300 is operated in such a state, the operating part 360 of the press 300 moves up and down, and thus the rod 362 mounted to the operating part 360 moves up and down. It will reciprocate.

In more detail, when the rod 362 moves downward, the upper mold 600 is moved downward in contact with the upper surface of the upper mold 600. When the upper mold 600 is continuously moved downward, pressing both sides of the material accommodated in the receiving groove 520.

When the rod 362 is completely moved downward, the lower surface of the upper mold 600 and the upper surface of the lower mold 700 are in contact with each other, the lower guide portion 732 of the upper guide portion 632 It is inserted into the stepped inner side so that the material can be pressed stably without buckling.

As the upper mold 600 moves downward, both sides of the material inside the receiving groove 520 are pressed by the molding parts 622 and 722 inside the upper mold 600 and the lower mold 700. The sub 62 is formed.

That is, the upper end of the material is pressed by the upper end of the molding unit 622 of the upper mold 600 corresponding to the upper receiving groove 640, the lower end of the material facing the lower receiving groove 740 It is pressed by the lower end of the forming part 722 of the lower mold 700 corresponding to the round part 62 on both sides of the material can be formed at the same time.

After pressing both sides of the material to form the round part 62, the rod 362 moves upward to remove the force for pressing the upper mold 600. Therefore, the upper mold 600 is moved upward by the elastic restoring force of the compression spring 562 interposed between the upper mold 600 and the lower mold 700.

At the same time, the push rod 440 of the moving mechanism 400 reciprocates in the left direction and pushes the material received in the inner side of the upper mold 600 and the lower mold 700 to the left side of the round mold 500. It is taken out from the inside. The material taken out to the outside of the round mold 500 is guided by the extraction guide member 140 and collected in a separate container.

After taking out the material, the material supplied by the supply means 200 is again accommodated inside the round mold 500 by the moving mechanism 400, and the round is operated by the press 300. The mold 500 is vertically reciprocated to repeat the operation of forming the round portions 62 on both sides of the material.

On the other hand, when the material of the round part 62 is formed by the push rod 440 is not taken out when the material is taken out, and the push rod 440 pushes the material to be continuously supplied to the newly supplied material. It is also possible that the round portion 62 is configured such that the molded material is pushed out to the left.

In addition, the upper mold 600 and the rod 362 may be integrally formed so that the upper mold 600 may move together according to the vertical movement of the rod 362, and the rod 362 may move the upper mold. By repeatedly tapping 600, both sides of the material may be pressed to form the round part 62.

The scope of the present invention is not limited to the above embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

In the oil pump vane according to the present invention as described in detail above, and a method for manufacturing the same, and a method for manufacturing the same, the wire member having a circular cross section is used as the raw material, and both sides of the material are naturally rounded in the rolling and drawing process, thereby forming one round part. Carry out a secondary molding, it is possible to form a round portion in the material by the press and the round mold of the oil pump manufacturing apparatus.

Therefore, in forming the round part, the round parts on both sides can be formed only by the reciprocating motion of the press, so that the round part can be processed at a very high speed.

As such, the formation of the round part by press working has a significantly faster processing speed than the round working on both sides of the raw material by polishing, thereby improving the productivity.

In addition, since the grinding stone is unnecessary during the press processing, periodic replacement of the grinding stone is unnecessary, and thus the maintenance cost and the production cost can be reduced.

In addition, the problem of contamination of the working environment by foreign matters such as particles generated during polishing is eliminated, and the work environment may be expected to be improved since the by-products of polishing do not have to be treated.

In addition, by processing the round part by pressing it with the press and the round mold, the effect of improving the surface straightness of the round part may be expected.

Claims (15)

In the manufacturing method of the vanes used for the oil pump, Initial molding step of correcting the shape by rolling and drawing the material; A press cutting step of cutting the corrected material by press working; A round forming step of inserting the cut material into a round mold having an inner portion rounded, and pressing both sides of the material by reciprocating the round mold to form round portions on both sides of the material; A thick polishing step of polishing both front and rear surfaces of the material having the round portion formed thereon; Full length polishing step of polishing the upper and lower sides of the material is completed polishing the front and rear sides; An oil pump vane manufacturing method comprising a barrel step of polishing a rough surface of a polished material. The method of claim 1, In the initial molding step, a method of manufacturing an oil pump vane, characterized in that the shape of the material to be corrected in the form of a plate formed on both sides round by rolling a wire or round bar high-speed coating oral (SKH-51) material. The method of claim 2, In the initial molding step, the method of manufacturing an oil pump vane characterized in that the straightness is to be drawn by the continuous rolled material to correct the straightness in the longitudinal direction. The method of claim 3, wherein In the round forming step, the oil pump vane manufacturing method, characterized in that both sides of the first round material formed in the calibration step is pressed by the mold to form a rounded straightness correction. The method of claim 4, wherein After the round forming step, an oil pump vane manufacturing method characterized in that the heat treatment step of quenching and tempering the material in a high-temperature vacuum state. The oil pump vane manufactured by the manufacturing method of the oil pump vane in any one of Claims 1-5. In the oil pump vane manufacturing apparatus for molding the round portion of the compressor vane, Supply means for continuously supplying a plurality of materials cut to a predetermined size; A press provided at one side adjacent to the supply means and provided with a rod reciprocating; A round metal mold installed in the press and configured to receive a material supplied by the supply means and press both sides of the material by reciprocating the rod to form round parts; Apparatus for manufacturing an oil pump vane is provided on one side of the round mold, including a moving mechanism for moving for processing and taking out the material. The method of claim 7, wherein The round mold is composed of an upper mold and a lower mold separated vertically, the upper mold and the lower mold, characterized in that the receiving groove is formed so that the rounded surface of the material to face the reciprocating direction of the rod Oil pump vane manufacturing apparatus. The method of claim 7, wherein The round mold, An upper mold accommodating an upper portion of the material; A lower mold provided below and spaced apart from the upper mold and accommodating a lower portion of the material; A guide post inserted into the upper mold and the lower mold to guide the relative motion of the upper mold and the lower mold; And an elastic providing means interposed between the upper mold and the lower mold to provide elasticity such that the upper mold and the lower mold are spaced apart from each other. The method of claim 9, The upper mold is provided with an upper accommodating groove for accommodating an upper portion of the material and having an end portion recessed to have a shape corresponding to the round portion, An oil pump vane manufacturing apparatus according to claim 1, wherein the lower mold receives a lower portion of the material and has a lower accommodating groove recessed to have an end portion having a shape corresponding to that of the round portion. The method of claim 10, The upper receiving groove and the lower receiving groove is an oil pump vane manufacturing apparatus, characterized in that formed in the reciprocating direction of the rod. The method of claim 11, The upper accommodating groove and the lower accommodating groove is an oil pump vane manufacturing apparatus, characterized in that it is formed to open to both sides of the upper mold and the lower mold. The method of claim 12, The rod is an oil pump vane manufacturing apparatus, characterized in that configured to tap the upper surface of the upper mold by a reciprocating motion. The method of claim 7, wherein The supply means, Receiving unit for receiving the material; A guide part extending from an upper part of the receiving part to an open side of the round mold to guide the material to the round mold, An end portion of the guide portion is formed in the extending direction of the receiving groove is an oil pump vane manufacturing apparatus, characterized in that for guiding the material is inserted into the inside of the receiving groove. The method of claim 8, The moving mechanism, A guide mounted to the side of the round mold; An oil pump vane manufacturing apparatus including a push rod for reciprocating at one side of the guide to push the material into the receiving groove of the mold.

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