KR20230114848A - Method for manufacturing leaf spring for missile radar tracking equipment - Google Patents

Abstract

The present invention relates to a method for manufacturing a leaf spring for missile radar tracking equipment, comprising: a punching step of forming a plurality of processing bodies and a body by punching a part of a workpiece made in a rectangular shape at regular intervals; and the processing body of the workpiece. A molding step of pressing with a press to deform into an arc-shaped shape, and primary bending to firstly bend the boundary between the processing body and the body of the workpiece so that the angle between the processing body and the body becomes an acute angle. and a second bending step of secondarily bending the processing body of the workpiece to be positioned above the body.

Description

Method for manufacturing leaf spring for missile radar tracking equipment}

The present invention relates to a method for manufacturing leaf springs for missile radar tracking equipment, and more particularly, to a method for manufacturing leaf springs for missile radar tracking equipment for localization and product optimization of leaf springs for missile radar tracking equipment, which are entirely dependent on imports. it's about

In general, a radar radiates microwaves or millimeter waves generated in a very short time to a target using an antenna with sharp directivity, and then receives a reflected wave reflected from the target to determine the distance from the radar to the target or the shape of the target. is a device that detects

Due to the nature of its operation, radar can be operated without restrictions depending on weather conditions or time. It is also widely used for military purposes.

These radar operating systems can be largely divided into a detection radar system, a tracking radar system, and a radar control system.

First, the detection radar system rotates in all directions and continuously emits electromagnetic waves having a certain period to detect a target, and calculates an azimuth angle and target distance for the detected target.

Next, a tracking radar system tracks the detected target in order to find a more accurate location of the detected target, and calculates azimuth, elevation, and distance information of the tracked target.

Finally, the radar control system detects a target using the detection radar system, receives detailed data about the target using the tracking radar system, and processes and displays the data.

Here, in the case of a tracking radar system, since it needs to track a projectile such as a missile, it must be operated at high speed and precisely. In order to perform such an operation, highly reliable parts must be used.

Among them, the leaf spring is used to fix other parts connected to the case after being coupled to the case used for radar tracking.

These leaf springs are entirely dependent on imports due to product reliability problems, and because of this, it takes 50 weeks to receive parts and the cost is high, so there were many problems in manufacturing missile radar tracking equipment.

For this reason, localization is promoted, but there is a problem in that a lot of manufacturing know-how is required due to the characteristics of the stainless steel material used for the leaf spring, and the reliability of the product is lowered due to the springback phenomenon.

Korean Patent Publication No. 10-2013-0110141

An object of the present invention to solve the above problems is to manufacture a leaf spring for missile radar tracking equipment that can manufacture a highly reliable product by gradually processing the leaf spring using a press to reduce the effect of the back spring. is to provide a way

Another object of the present invention is to provide a method for manufacturing leaf springs for missile radar tracking equipment, which can improve productivity and reduce manufacturing costs by localizing leaf springs, which are entirely dependent on imports.

In order to solve the above problems, the method of manufacturing a leaf spring for missile radar tracking equipment of the present invention includes a punching step of forming a plurality of processing bodies and a body by punching a part of a workpiece made of a rectangular shape at regular intervals, and A molding step of pressing the processing body with a press so as to deform it into an arc-shaped shape, and first bending the boundary between the processing body and the body of the workpiece so that the angle between the processing body and the body becomes an acute angle It is characterized in that it includes a first bending step and a second bending step of secondarily bending the processed body of the workpiece to be located on the upper part of the body.

In addition, the molding step of the method of manufacturing a leaf spring for missile radar tracking equipment of the present invention is to support the deformable part and the body in which an arcuate groove is formed to deform the pressing part into an arcuate shape in the center so that the workpiece can be seated. It is characterized in that it includes a molding die made of a supporting part, and a molding punch formed on the upper part of the molding die and closely attached to the deformation part to mold the pressing part to have an arc shape.

In addition, the first bending step of the method of manufacturing a leaf spring for missile radar tracking equipment of the present invention includes a first bending punch having a triangular tip formed to press the boundary of the workpiece downward, and the first bending Including a primary bending die having a primary seating portion formed with an inclined surface so that the workpiece bent through the steps can be seated and a bending portion provided at the center of the primary seating portion so that the cutting edge can be penetrated and inserted. to be characterized

In addition, in the second bending step of the manufacturing method of the leaf spring for missile radar tracking equipment of the present invention, the second bending step is provided with a contact part protruding in a square shape in the center so that the first bent processing body of the workpiece can be pressed downward. It is characterized in that it includes a bending punch and a secondary bending die provided with a secondary seating part dug inward so that the processing body of the workpiece can be inserted in the center.

As described above, according to the manufacturing method of the leaf spring for missile radar tracking equipment according to the present invention, when manufacturing the leaf spring, it is gradually processed using a press to reduce the effect of the back spring, thereby manufacturing a highly reliable product. It works.

In addition, according to the manufacturing method of the leaf spring for missile radar tracking equipment according to the present invention, there is an effect of improving productivity and reducing manufacturing cost by localizing the leaf spring, which is entirely dependent on imports.

1 is a flow chart showing manufacturing steps of a method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention.
2 is a view showing the appearance of a punched-out workpiece of the method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention.
3 is a view showing how the punched workpiece of the method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention is molded.
Figure 4 is an enlarged view showing the shape of the molding die of the method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention.
5 is a view showing a state of primary bending of a molded workpiece of the method of manufacturing a leaf spring for missile radar tracking equipment according to the present invention.
6 is an enlarged view showing the shape of the primary bending die of the method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention.
7 is a view showing a state of secondary bending of a primary bent workpiece of the manufacturing method of a leaf spring for missile radar tracking equipment according to the present invention.
8 is an enlarged view showing the shape of the secondary bending die of the method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention.
9 is a view showing a leaf spring manufactured by a method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention.

Specific features and advantages of the present invention will be described in detail below with reference to the accompanying drawings. Prior to this, if it is determined that the detailed description of functions and configurations related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

The present invention relates to a method for manufacturing leaf springs for missile radar tracking equipment, and more particularly, to a method for manufacturing leaf springs for missile radar tracking equipment for localization and product optimization of leaf springs for missile radar tracking equipment, which are entirely dependent on imports. it's about

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

1 is a flow chart showing manufacturing steps of a method for manufacturing a leaf spring for a missile radar tracking device according to the present invention, and FIG. 2 is a view showing the appearance of a punched-out workpiece of a method for manufacturing a leaf spring for a missile radar tracking device according to the present invention. 3 is a view showing how the punched-out workpiece of the method for manufacturing a leaf spring for a missile radar tracking device according to the present invention is molded, and FIG. 4 is a method for manufacturing a leaf spring for a missile radar tracking device according to the present invention. It is an enlarged view showing the shape of a die by enlarging it, and FIG. 5 is a view showing the state of primary bending of a molded workpiece of the method of manufacturing a leaf spring for missile radar tracking equipment according to the present invention, and FIG. It is an enlarged view showing the shape of the primary bending die of the method for manufacturing a leaf spring for a missile radar tracking device, and FIG. Figure 8 is an enlarged view showing the shape of the secondary bending die of the method for manufacturing a leaf spring for missile radar tracking equipment according to the present invention, and Figure 9 is a missile radar tracking according to the present invention. It is a drawing showing a leaf spring manufactured by a method for manufacturing a leaf spring for equipment.

As shown in FIGS. 1 to 9, in the manufacturing method of a leaf spring for missile radar tracking equipment according to the present invention, a part of a workpiece 100 having a rectangular shape is punched out at regular intervals to form a plurality of workpieces 120 and A punching step (S10) of forming the body 110, a forming step (S20) of pressing the processed body 120 of the workpiece 100 with a press so as to deform it into an arc-shaped shape, and processing of the workpiece 100 The first bending step (S30) of first bending the boundary between the body 120 and the body 110 so that the angle between the processing body 120 and the body 110 becomes an acute angle, and It is characterized in that it includes a secondary bending step (S40) of secondary bending so that the processing body 120 is positioned above the body 110.

In the punching step (S10), the workpiece 100 made of stainless steel in a rectangular plate shape is punched with a press to form a rectangular shape formed by being spaced apart from the upper part of the body 110 at regular intervals with the body 110 connected in a straight line. It is a step for forming the processing body 120 of.

At this time, it is preferable that the height of the processing body 120 formed in the punching step (S10) is formed equal to the height of the body 110, and the body 110 supports the position of the processing body 120, and each processing body 120 can be used as a leaf spring while being deformed in a state supported by the body 110.

In addition, in the present invention, the workpiece 100 is expressed as being processed by sequentially moving a rectangular strip to an independent mold, but in actual processing, when a strip made of stainless steel is supplied using a progressive mold, the center of the strip It may be processed sequentially while forming the workpiece 100 .

In the present invention, the workpiece 100 is formed in a long rectangular shape, and the workpiece 100 and the mold shown in the drawings are made in the form viewed from the side, but in reality, the mold is the length of the workpiece 100 It is formed long so as to correspond to the workpiece 100, and is formed so that a plurality of processing bodies 120 formed in the longitudinal direction of the workpiece 100 can be simultaneously pressed and molded and bent.

The molding step (S20) is used to press the workpiece 100 composed of the body 110 and the workpiece 120 with a press to process an arc-shaped shape for imparting elasticity to the flat workpiece 120.

To this end, the molding step (S20) is to support the deformable part 320 and the body 110 in which an arc-shaped groove is formed so that the pressurizing part 210 in the center is deformed into an arc-shaped shape so that the workpiece 100 can be seated. A forming die 300 formed of a holding portion 310 and a forming punch 200 formed on the upper portion of the forming die 300 and formed in close contact with the deformable portion 320 so that the pressing portion 210 is formed into an arc shape. It is characterized in that it includes.

As shown in FIGS. 3 and 4, the forming die 300 and the forming punch 200 press the workpiece 100 in a state in which they are mounted in a press, so that the workpiece 120 of the workpiece 100 has a circular shape. It is used to deform into an arc shape. In a state in which the workpiece 100 is inserted into the forming die 300, the forming punch 200 descends to deform the shape of the workpiece 120.

At this time, in order to transform only the shape of the processing body 120 into an arc shape, a mounting portion 310 for supporting the flat body 110 is provided in the groove of the molding die 300, and one side of the mounting portion 310 has a processing A deformable portion 320 cut into an arc shape is provided so that the sieve 120 can be formed in an arc shape.

That is, when the workpiece 100 in a flat state is inserted into the molding die 300, the body 110 can be in close contact with the mounting portion 310, but the processing body 120 does not adhere to the arcuate deformable portion 320. The outer surface of the deformable part 320 is pressed by the forming punch 200 that is lowered from the top after being maintained in a spaced state without being in close contact, so that it can be molded in the same shape as the deformable part 320 while in close contact.

The forming punch 200 is inserted into the groove of the forming die 300 and is used to press the workpiece 100, and protrudes downward from the center.

At this time, the protruding part of the forming punch 200 is formed on the side of the pressing part 210 formed in an arc shape and the pressing part 210 so as to be in close contact with the deformable part 320 formed in an arc shape, and the body 110 ) and an inclined portion 220 that presses the boundary portion of the processing body 120 in close contact with each other.

That is, when the forming punch 200 descends, the pressing part 210 comes into close contact with the deformable part 320 to mold the processing body 120 into an arc shape, and the inclined portion 220 is formed between the body 110 and the processing body. The boundary surface of the body 120 is pressed to prevent the body 110 from being separated.

When going through this forming step (S20), the processed body 120 of the workpiece 100 is deformed into an arc-shaped shape, and the forming step (S20) is multi-stage according to the type of material or elastic modulus of the workpiece 100. It is also possible to gradually deform the processing body 120 into an arc shape.

In the first bending step (S30) and the second bending step (S40), the processing body 120 is moved to the upper part of the body 110 so that the workpiece 100 in which the processing body 120 is formed in an arc shape can have elasticity. It is used to rotate in a direction.

In the first bending step (S30), a state in which the processing body 120 and the body 110 are formed parallel to each other is bent so that the angle between the processing body 120 and the body 110 is formed at an acute angle of 90 degrees or less. It is a step to

To this end, in the first bending step (S30), the first bending punch 400 having a triangular tip 410 to press the boundary of the workpiece 100 downward, and the workpiece 100 A primary seating portion 520 with an inclined surface is provided so that the first seating portion 520 can be seated, and a bent portion 510 is provided at the center of the primary seating portion 520 so that the cutting edge 410 can be penetrated and inserted. It is characterized in that it comprises a die (500).

In order to bend the processing body 120 formed in an arc shape to an acute angle toward the body 110, the primary bending punch 400 has a tip 410 protruding in a triangular shape in the center, and the tip ( 410 presses the interface between the processing body 120 and the body 110 so that both ends of the processing body 120 and the body 110 are rotated around the tip 410.

The primary bending die 500 is used to support the workpiece 100 pressed by the primary bending punch 400, and the workpiece 100 in which the workpiece 120 is formed in an arc shape is inserted into the center. 1 seating part is provided so that the lower surface of the processing body 120 and the lower surface of the body 110 can be supported, and a bent part 510 is formed in the center so that the cutting edge 410 can be inserted through. .

At this time, the bent part 510 is dug inward in a triangular shape, so when the primary bending punch 400 descends, the tip 410 is inserted into the bent part 510 and both ends of the workpiece 100 are pressed. It is rotated around the portion 410 to bend it.

In addition, in order to stably support the workpiece 100, the primary seating portion 520 is tilted at an angle so that the shape of the supporting portion 310 and the deformable portion 320 formed on the molding die 300 are bent. It is desirable that it is formed.

That is, one side of the primary seating portion 520 is formed in an arcuate shape inclined so that the processing body 120 adheres to it, and the other side is formed in a flat shape inclined so that the body 110 is coupled thereto.

When the molded workpiece 100 is inserted into the primary bending die 500, both ends are positioned at the upper end of the inclined surface and the center remains spaced apart from the primary seating portion 520, and then the primary bending punch 400 ) descends, the processing body 120 and the body 110 of the workpiece 100 come into close contact with the primary seating portion 520 while being bent so as to come closer to each other.

Through this, the firstly bent workpiece 100 is bent at an acute angle in the form of FIG. 7, and it is preferable to bend only up to 40 to 70 degrees in order to prevent a springback phenomenon during the first bending.

In this case, when the bending angle is less than 40 degrees, a springback phenomenon may occur, and when it exceeds 70 degrees, a springback phenomenon may occur because there are many bending angles during secondary bending.

That is, it is preferable that the springback phenomenon gradually progresses to reduce the bending angle, and in particular, it is preferable to minimize the bending angle during the secondary bending.

The secondary bending step (S40) is to finally bend the firstly bent workpiece 100 to give it elasticity and use it as a leaf spring. When the secondary bending is completed, the end of the workpiece 120 is the body 110. ), and the middle of the processed body 120 formed in the shape of an arc is formed with a wider distance from the body 110 than the end.

To this end, in the secondary bending step (S40), a secondary bending punch having a contact portion 610 protruding in a rectangular shape in the center so as to press the primary bent processing body 120 of the workpiece 100 downward. (600) and a secondary bending die (700) provided with a secondary seating portion (710) dug inward so that the processed body (120) of the workpiece (100) can be inserted in the center. do.

The secondary bending punch 600 has a lower center protruding in a square shape to press the workpiece 100, and the secondary bending die 700 has a square groove in the center and a A secondary seating portion 710 to which the processing body 120 formed in an arc shape can be adhered is provided so as to receive and support the workpiece 100 .

The workpiece 100 inserted into the secondary bending die 700 is placed in a state where the circular arc-shaped processing body 120 is supported on the secondary seating portion 710, and the secondary bending punch descends from the top. By the contact portion 610 of (600), the body 110 is pressed downward and finally bent.

At this time, in the second bending step (S40), the workpiece 100 bent at an acute angle through the first bending is bent at an angle of 20 to 30 degrees of the workpiece 120 based on the body 110, and the final bending The processed body 120 may be used as a leaf spring as elastic force is imparted by the bent angle and arc-shaped shape.

At this time, when the bent angle of the workpiece 100 exceeds 30 degrees, the processing body 120 becomes excessively elevated, so it is difficult to mount on the part, and when the bending angle of the workpiece 100 is less than 20 degrees, the end of the processing body 120 is attached to the body ( 110), so the elastic force is reduced.

Accordingly, it is preferable that the workpiece 100 is maintained in a bent state at an angle of 20 to 30 degrees.

In addition, the secondary seating portion 710 of the secondary bending die 700 may be formed flat to accommodate the flat body 110 instead of the processing body 120, and the secondary bending punch 600 ) is also able to secondarily bend the workpiece 100 by pressing the pressing body 120.

As shown in FIG. 9, the body 110 is finally formed flat, and the processing body 120 is formed in an arc shape, and then has a shape bent at an angle of 20 to 30 degrees, and the end of the processing body 120 is the body. (110) and is maintained in a spaced state.

At this time, a plurality of processing bodies 120 are spaced apart at regular intervals to form the body 110, and each processing body 120 can absorb shock by an elastic force when an external force is generated.

As described above, according to the method for manufacturing a leaf spring for a missile radar tracking device according to the present invention, a highly reliable product can be manufactured by reducing the backspring effect by gradually processing the leaf spring using a press when manufacturing the leaf spring, , there is an effect of improving productivity and reducing manufacturing cost by localizing leaf springs, which are entirely dependent on imports.

As described above, the present invention has been described with a focus on preferred embodiments, but those skilled in the art can make the present invention various within the range that does not deviate from the technical spirit and scope described in the claims of the present invention. It can be implemented by modifying or transforming accordingly. Accordingly, the scope of the present invention should be construed by the claims which are written to include examples of these many variations.

S10: Punching step
S20: molding step
S30: 1st bending step
S40: 2nd bending step
100: work piece
110: body
120: processing body
200: molding punch
210: pressing part
220: inclined portion
300: molding die
310: mounting part
320: deformation part
400: 1st bending punch
410: tip
500: 1st bending die
510: bending part
520: 1st seating part
600: 2nd bending punch
610: contact
700: 2nd bending die
710: 2nd seating part

Claims (4)

a punching step of forming a plurality of processing bodies and a body by punching out a part of a workpiece formed in a rectangular shape at regular intervals;
a molding step of pressurizing the processed body of the workpiece with a press so as to deform it into an arc-shaped shape;
a primary bending step of firstly bending a boundary between the processing body and the body of the workpiece so that an angle between the processing body and the body becomes an acute angle;
characterized in that it comprises a; secondary bending step of secondarily bending the processing body of the workpiece to be located on the upper part of the body
Manufacturing method of leaf spring for missile radar tracking equipment.
According to claim 1,
The molding step is
a molding die composed of a deformable portion having an arc-shaped groove at the center to deform the pressing portion into an arc-shaped shape so that the workpiece can be seated thereon, and a supporting portion supporting the body;
characterized in that it comprises a; forming punch formed on the upper part of the molding die and being in close contact with the deformable part to mold the pressing part to have an arc-shaped shape.
Manufacturing method of leaf spring for missile radar tracking equipment.
According to claim 1,
The first bending step is
a primary bending punch formed with a triangular tip so as to press the boundary of the workpiece downward;
A first bending die having a first seating portion formed with an inclined surface so that the workpiece bent through the first bending step can be seated and a bent portion provided at the center of the first seating portion so that the cutting edge can be penetrated and inserted. characterized in that it includes;
Manufacturing method of leaf spring for missile radar tracking equipment.
According to claim 1,
The second bending step is
a secondary bending punch provided with a contact portion protruding in a rectangular shape so as to press the firstly bent processing body of the workpiece downward;
characterized in that it comprises a; secondary bending die provided with a secondary seating portion dug inward so that the processing body of the workpiece can be inserted in the center.
Manufacturing method of leaf spring for missile radar tracking equipment.