KR101939585B1 - manufacturing method for drawing socket of USB-C type - Google Patents

Abstract

The present invention relates to a method for manufacturing a USB-C type drawing socket comprising: a drawing step of sequentially drawing a sheet metal to be transferred in a multi-step manner to form a cylindrical first processed body having different diameters at upper and lower ends; a shape deforming step of deforming an outer surface of the first processed body formed in the drawing step sequentially into a second processed body having a deformed shape by multi-pressurization manner; a forming step of deforming a middle end of the second processed body deformed by the shape deforming step to a third processed body by hemming toward an outer surface; and a discharging step of discharging the middle end of the third processed body hemmed in the forming step after separating an upper end connected to the sheet metal by punching the middle end of the third processed body.

Description

Manufacturing method of drawing socket of USB-C type {

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a USB-C type drawing socket manufacturing method, and more particularly, to a USB-C type drawing socket manufacturing method in which, when a USB-C type socket is manufactured by drawing sheet metal, C type drawing socket.

Generally, USB (Universal Serial Bus) is a serial bus standard for connecting peripheral devices to information devices such as a computer and a portable terminal so that data and electric power can be transmitted.

The USB-C type is convenient because the shape of the terminal is symmetrical in the top, bottom, left and right sides, so it can be used without any upper and lower distinction when inserting the cable into the terminal. The charging speed and data transfer speed are faster than the conventional type. This trend is becoming popular.

In addition, the USB includes a plurality of contacts for transmitting data and power, and a socket for accommodating contacts. The USB is formed by bending a plate to form a shape, and both ends of the plate are closely contacted To make the socket.

As a result, there is a problem in that a contact failure occurs due to a splice when the connector is used for a long period of time.

Further, in order to improve the waterproofness of the socket, a seamless metal-injection (MIM) method can be used to produce a seamless socket. However, such a method has a problem in that the manufacturing cost is high and the manufacturing process yield is low.

In order to solve the problems of the related art, as shown in FIG. 2, in order to manufacture a seamless USB-C type socket, an attempt has been made to produce a product by using an elliptic drawing method. However, (DeepDrawing) method, there is a problem that the thickness of the long side is thinner than that of the short side due to the varying degree of elongation of each side since the length ratio of the long side and the short side is different.

In addition, there is a high possibility that a shock line or scratch occurs along the surface of the product after the deep drawing, a shape in which the lower corner portion of the short side is stretched occurs, There is a problem that the assembly operation is delayed and the quality of the final product can not be assured.

Registration No. 10-1401963 Japanese Patent Application Laid-Open No. 10-2016-0121878

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a USB-C type drawing socket manufacturing method capable of improving a waterproof property by forming a waterproof structure on a socket and enhancing a coupling property with a member coupled to a socket .

Another object of the present invention is to provide a USB-C type drawing socket manufacturing method which can prevent the outer shape of the socket from being damaged or deformed when the waterproof structure is formed by manufacturing the socket so that the thickness becomes generally uniform when the socket is manufactured .

Another object of the present invention is to provide a method of manufacturing a USB-C type drawing socket that can be automatically produced step by step by supplying sheet metal, thereby increasing production efficiency.

According to an aspect of the present invention, there is provided a method of manufacturing a USB-C type drawing socket, the method comprising: a drawing step of sequentially drawing a sheet metal to be transferred in a plurality of stages to form a cylindrical first processed body having different diameters; A step of deforming the outer surface of the first processed body formed in the drawing step in order to deform the outer surface of the first processed body into a second processed body having a rounded corner shape by sequentially pressing the outer surface of the first processed body, And a discharging step of discharging the upper end connected to the sheet metal by discharging an end of the third processed material which has been hemmed in the forming step.

The drawing step of the USB-C type drawing socket manufacturing method of the present invention is characterized in that the sheet metal is roundly drawn in a multi-stage so that the thickness of the entire surface of the first processed object is uniformly distributed.

Further, in the method of manufacturing a drawing socket of the USB-C type of the present invention, the shape modification step may include forming cores on the front, rear, left, and right sides of the first processed body, And the core simultaneously presses the side surface of the first processed body to deform the first processed body into a square shape having rounded corners.

The USB-C type drawing socket manufacturing method of the present invention is formed between the drawing step and the shape deformation step, and the lower end of the first processed body is pierced to open the lower surface, And a piercing step of causing the upper end and the lower end to be constantly deformed when being pressed and deformed.

Further, in the forming step of the USB-C type drawing socket of the present invention, the forming surface of the second processed body is vertically hemmed such that the one side of the stop adjacent to the bottom of the second processed body is parallel to the bottom, And is formed horizontally so as to be at right angles from the one surface, and a bone is formed so that waterproof silicone can be applied to the one surface of the stop.

The molding step of the USB-C type drawing socket manufacturing method of the present invention may further comprise: a first hemming step for hemming the one end face adjacent to the lower end of the second processed body downwardly at 25 to 35 degrees; A second hemming step of hemming a 25-35 degree road-halted one side 45-55 degrees downward; a third hemming step of hemming 45-55 degrees downward in the second hemming step to 60-70 degrees downward; And a fourth hemming step for hemming the one side of the interruption hemmed at 60 to 70 degrees in the third hemming step to 85 to 90 degrees in the downward direction.

Further, in the USB-C type drawing socket manufacturing method of the present invention, after the fourth hemming step, the one-side hemispheres hemmed 85 to 90 degrees are re-pressed to correct the one side to be vertically held, Characterized in that it further comprises a correction step of forming a bone to be applied

The first hemming step to the fourth hemming step of the USB-C type drawing socket manufacturing method according to the present invention is a method of hemming an abutting surface adjacent to a lower end of the second processed object in order, And is held horizontally.

The method of manufacturing a drawing socket of a USB-C type according to the present invention may further include the step of forming the lower end of the third processed body, which is formed between the forming step and the discharging step of the USB-C type drawing socket manufacturing method, And a cutting step of removing the deformation generated at the lower end of the processed body to improve the assembling property.

In addition, the USB-C type drawing socket manufacturing method of the present invention is formed before the drawing step, in which a circular drawing portion is formed on the sheet metal, and a notching step of forming a first notching portion and a second notching portion at regular intervals around the drawing portion And further comprising:

As described above, according to the USB-C type drawing socket manufacturing method of the present invention, the waterproof structure is formed in the socket to improve the waterproof property and improve the coupling property with the member to be coupled to the socket.

In addition, according to the USB-C type drawing socket manufacturing method of the present invention, since the thickness of the socket is generally uniformized when the socket is manufactured, it is possible to prevent the outer shape of the socket from being damaged or deformed when the waterproof structure is formed .

In addition, according to the USB-C type drawing socket manufacturing method of the present invention, when the sheet metal is supplied, the automatic production can be performed step by step, thereby improving the production efficiency.

1 is an exploded view showing a disassembled state of a receptacle connector of the prior art;
2 is a cross-sectional view showing a state in which a sealing member is formed on a receptacle connector of the prior art;
3 is a flowchart illustrating a method of manufacturing a USB-C type drawing socket according to the present invention.
4 is a view showing a notching step and a drawing step of a USB-C type drawing socket manufacturing method according to the present invention.
5 illustrates piercing and deforming steps of a USB-C type drawing socket manufacturing method according to the present invention.
6 is a view showing a core for transforming a first processed body in the shape-deforming step of the USB-C type drawing socket manufacturing method according to the present invention.
7 is a view showing a forming step of a USB-C type drawing socket manufacturing method according to the present invention.
8 is a detailed view illustrating a molding step of a USB-C type drawing socket manufacturing method according to the present invention.
9 is a detailed view illustrating a correction step of a USB-C type drawing socket manufacturing method according to the present invention.
10 is a detailed view illustrating a cutting step of a USB-C type drawing socket manufacturing method according to the present invention.
11 is a view showing a socket manufactured through a discharging step of a USB-C type drawing socket manufacturing method 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. The detailed description of the functions and configurations of the present invention will be omitted if it is determined that the gist of the present invention may be unnecessarily blurred.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a USB-C type drawing socket manufacturing method, and more particularly, to a USB-C type drawing socket manufacturing method in which, when a USB-C type socket is manufactured by drawing sheet metal, C type drawing socket.

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

3 is a flowchart illustrating a method of manufacturing a USB-C type drawing socket according to the present invention.

3, the method of manufacturing a drawing socket 20 of the USB-C type according to the present invention includes a step of sequentially drawing the sheet metal 10 to be transferred in a multi-step manner, The drawing step S20 for forming the processed body 200 and the outer surface of the first processed body 200 formed in the drawing step S20 are sequentially pressed to form the second processed body 210 having a square rounded corner A shaping step S50 of deforming the end of the second processed body 210 deformed by the shape deforming step S40 toward the outer surface and deforming the third processed body 220 into the third processed body 220, And a discharging step (S70) of discharging the upper end connected to the sheet metal (10) by discharging the hemmed third processed body (220) in the forming step (S50).

A circular drawing unit 130 is formed on the sheet metal 10 and the first and second notching units 110 and 110 are formed at predetermined intervals around the drawing unit 130, 120) are formed on the substrate (10).

The outer surface of the first processed body 200 is pressed and deformed by piercing the lower center of the first processed body 200 and opening the lower surface thereof, which is formed between the drawing step S20 and the shape deformation step S40 And a piercing step (S30) for causing the upper and lower ends to be deformed uniformly.

The shaping step S50 includes a first hemming step S51 for hemming the one side of the stop adjacent to the lower end of the second processed body 210 in the downward direction by 25 to 35 degrees and a second hemming step S51 for 25 to 35 degrees in the first hemming step S51 A second hemming step (S52) in which the hemmed one-side halves are hemmed 45 to 55 degrees in the downward direction; a third hemming step in which the one hemmed side 45 to 55 degrees in the second hemming step (S52) And a fourth hemming step (S54) for hemming the one side of the interruption, which is hemmed 60 to 70 degrees in the third hemming step (S53), to 85 to 90 degrees in the downward direction.

In addition, after the fourth hemming step (S54), the one-side halted face is re-pressed so that the one side to be halted is maintained to be vertical, and the correction step for forming the bone so as to apply silicone for water- (S55).

Is formed between the forming step S50 and the discharging step S70 and sequentially cutting the lower end of the third processed body 220 to cut the third processed body 220 in the shape deformation step S40 or the forming step S50, (S60) for improving the assemblability by removing the deformations generated at the lower ends of the first and second plates (220, 220).

A detailed description of each step will be given later with the accompanying drawings.

4 is a diagram showing a notching step S10 and a drawing step S20 of the USB-C type drawing socket 20 manufacturing method according to the present invention.

As shown in FIG. 4, the USB-C type drawing socket 20 according to the present invention uses a progressive mold method to sequentially transfer sheet metal 10 at regular intervals, The sheet metal 10 is processed step by step.

The notching step S10 is a step of forming a portion to be drawn in the drawing step S20 and a guide hole 100 allowing the sheet metal 10 to be placed at a predetermined position of each metal mold while being transported at regular intervals.

The guide holes 100 are formed at regular intervals so that a sheet metal 10 is transferred after a transfer device (not shown) is inserted into the guide hole 100. When the guide holes 100 are positioned in the respective molds, The sheet metal 10 can be positively positioned by a pin (not shown).

The first notching portion 110 and the second notching portion 120 are for forming a portion for drawing in the drawing step S20. As shown in Fig. 4-A, a circular drawing portion The sheet metal 10 is tapped so that the first connection end 130 and the first connection end 140 and the connection ring 150 and the second connection end 160 are formed.

At this time, the first notching portion 110 is caused to strike the sheet metal 10 such that the first connecting end 140 is formed into a cross shape on the circular drawing portion 130, The sheet metal 10 is hit so that the connecting end 160 is formed in an X-shape.

The sheet metal 10 is formed with a circular drawing part 130 by the first notching part 110 and the second notching part 120 and a connecting ring 150 is formed at a position spaced from the drawing part 130 A first connection end 140 connecting the drawing unit 130 and the connection ring 150 and a second connection end 160 connecting the connection ring 150 and the sheet metal 10 are formed .

That is, between the drawing unit 130 and the connecting ring 150, and between the connecting ring 150 and the sheet metal 10, the first notching unit 110 and the second notching unit 120 are in an empty state, The first connection terminal 140 and the second connection terminal 160 connect the respective components.

The drawing step S20 is for drawing the drawing part 130 formed in the notching step S10 into a cylindrical shape and pressing the drawing part 130 stepwise by pressing to protrude the drawing part 130 in the downward direction The first processed body 200 is formed.

At this time, the drawing step S20 is characterized by uniformly distributing the thickness of the entire periphery of the first processed member 200 by drawing the drawing unit 130 formed in the sheet metal 10 in a circular shape.

When the first processed body 200 is formed in the drawing step S20, when the corners of the shell 2 shown in Fig. 1 are drawn in a round rectangular shape, a shock line, a scratch, There is a problem that both ends of the arc and the both sides of the straight section are distributed in different thicknesses, and the mold is damaged by the load.

In addition, when the thickness of the first processed member 200 is different, there is a problem that a portion damaged by an external force or a thick portion can not be deformed normally in the shape deformation step S40 or the molding step S50.

For this purpose, when drawing the drawing part 130 in a multi-step drawing so that the thickness of the entire circumference where the first processed part 200 protrudes becomes uniform, the first processed part 200 is formed by using a circular pressing part (not shown) So as to be cylindrical.

As the first processed body 200 is cylindrically protruded, the distances from the central axis of the first processed body 200 to the inner surface are all the same, so that they are drawn with a uniform thickness.

Also, in the drawing step S20, the first processed body 200 is drawn so that the diameters of the upper and lower ends are different from each other as shown in FIG. 4-C, and the first processed body 200 and the second processed body 200, So that the upper end is formed larger in diameter than the lower end.

At this time, a step is formed in the first processed body 200 due to the difference in diameter between the upper and lower ends, and the interruption is formed horizontally from the ground to connect the upper end and the lower end.

Further, the break formed in the first processed body 200 is a portion for later hemming in the forming step S50, and the related explanation will be described later in detail in the forming step S50.

FIG. 5 is a view showing a piercing step S30 and a shape-deforming step S40 of a method of manufacturing the USB-C type drawing socket 20 according to the present invention, and FIG. 6 is a view showing a USB- FIG. 8 is a view showing a core which deforms the first processed body 200 in the shape-deforming step S40 of the socket 20 manufacturing method.

5 to 6, the piercing step S30 of the method for manufacturing the USB-C type drawing socket 20 according to the present invention is performed by forming the lower surface of the first processed body 200, which is cylindrically protruded, Thereby preventing a resistance at the lower end from being generated when the outer surface of the first processed object 200 is changed in the shape deforming step S40.

A punch (not shown) of the press which is inserted into the first processed body 200 and presses the lower surface of the first processed body 200 is circularly pressed through the press, It is preferable to prevent scratches from being generated on the inner surface of the punch (not shown) first processed body 200. [

In the shape deforming step S40, cores are formed on the front, rear, left, and right sides of the first processed body 200, and cores formed on the left and right sides of the first processed body 200 are formed on the first processed body 200 Is pressed at the same time to deform the first processed body 200 into a square shape having rounded corners.

When the lower surface of the first processed body 200 is opened, the first processed body 200 is pressed in the shape-deforming step S40 so that its cross-section changes from a circular shape to a square shape having rounded corners.

In this case, the rectangular rounded corner has a horizontal line in which the upper and lower sides are parallel to each other when viewed in cross section, and one side and the other side are connected in a semicircular shape, which is the same as the USB-C type terminal standard generally used.

A plurality of cores for pressing the outer surface of the first processed body 200 are formed in the shape deformation step S40 in order to process the first processed body 200 into a rectangular rounded shape.

The first core 300 is formed on the lower mold and is formed on the left and right sides of the first processed body 200 to press the left and right sides of the circular first processed body 200, When the outer surface of the first core 300 is pressed, the first core 300 is slid toward the first processed body 200 and simultaneously presses the left and right sides of the first processed body 200.

The second core 310 is formed on the lower mold and is formed on the front surface and the rear surface of the first processed body 200 and is spaced apart from the first processed body 200, The left and right sides of the first processed body 200 are pressed to support the front and rear surfaces of the first processed body 200 when the first processed body 200 is changed into a rectangular rounded shape.

The third core 320 is formed on the upper mold and is inserted into the first processed body 200 through the upper opened portion of the first processed body 200. When the first core 300 is inserted into the first processed body 200, The third core 320 supports the first processed body 200 so that the first processed body 200 is not excessively deformed inside the first processed body 200 when the outer surface of the first processed body 200 is pressed.

Further, in the shape deforming step S40, when the first processed body 200 is deformed into a rectangle having rounded corners, the outer surface of the first processed body 200 is gradually divided into a rectangular shape with rounded corners .

When the first processed body 200 is pressed by the first core 300, the second core 310, and the third core 320, a second processed body 210 having a square rounded corner is formed .

7 is a view showing a molding step S50 of a method of manufacturing a USB-C type drawing socket 20 according to the present invention, and FIG. 8 is a view showing a method of manufacturing a drawing socket 20 of a USB-C type according to the present invention. And a forming step (S50).

7 to 8, in the forming step S50 of the method of manufacturing the drawing socket 20 of the USB-C type according to the present invention, the one side of the interruption adjacent to the lower end of the second processed body 210 is the bottom And the other end face adjacent to the upper end is horizontally formed so as to be perpendicular to the one side of the hemmed stop.

The forming step S50 is for forming a waterproof structure in the socket 20 by pressing the stop formed horizontally in the second processed body 210 by the pushing tool 400 and the support base 410 to deform the angle.

At this time, a plurality of sets of the presser foot 400 and the support table 410 are mounted on the respective molds, so that the stop of the second processed body 210 is gradually hemmed, and the presser foot 400 Preferably, the support 410 is formed to gradually increase the angle at which the hemming is sequentially performed.

The shaping step S50 includes a first hemming step S51 for hemming the one side of the stop adjacent to the lower end of the second processed body 210 in the downward direction by 25 to 35 degrees and a second hemming step S51 for 25 to 35 degrees in the first hemming step S51 A second hemming step (S52) in which the hemmed one-side halves are hemmed 45 to 55 degrees in the downward direction; a third hemming step in which the one hemmed side 45 to 55 degrees in the second hemming step (S52) And a fourth hemming step (S54) in which the one hemming step of hemming 60 to 70 degrees in the third hemming step S53 is performed to 85 to 90 degrees in the downward direction in the hemming step (S53).

The first hemming step S51 to the fourth hemming step S54 are characterized by sequentially hemming one of the halves adjacent to the lower end of the second processed body 210 while keeping the halved other surface adjacent to the upper end horizontally do.

The primary molding step S50 to the fourth hemming step S54 gradually hems the interruption of the second processed body 210 by the pressurizing tool 400 and the supporting base 410 formed at the predetermined angle, The sphere 400 and the support 410 form a second hemming part 212 so that the interruption of the first hemming part 211 adjacent to the lower end of the second processed body 210 is hemmed while the interruption adjacent to the upper end is horizontal .

That is, the hemming process is performed so that the one end face of the second processed body 210 is vertically formed to be perpendicular to the first hemming part 211, When stopped, it is hemmed so that it is formed horizontally.

At this time, the second hemming portion 212 is moved from the second face to the stop face through the first molding step S50 to the fourth molding step S50, because the first hemming portion 211 is hemmed So that the first hemming portion 211 is prevented from being damaged by a sudden change in angle.

Finally, when the second processed body 210 is subjected to the fourth molding step S50, the third processed body 220 is formed, and the first hemming part 211 is hemmed in a semicircular shape, , And the second hemming portion 212 is shaped to be 90 degrees to be horizontally formed from the one side of the interruption.

9 is a detailed view showing a correction step S55 of the USB-C type drawing socket 20 manufacturing method according to the present invention.

As shown in FIG. 9, in the USB-C type drawing socket manufacturing method according to the present invention, after the fourth hemming step (S54), the halted one side hemmed at 85 to 90 degrees is repressed, And a correction step (S55) of forming a ridge so that silicon for waterproofing can be applied on one surface of the stop.

In the correction step S55, after the fourth hemming step S54, the hemmed portion of the third processed body 220 is repressed to the pressing tool 400 and the support base 410, And to maintain the hemmed shape.

At this time, the presser foot 400 and the support table 410 are pressed so as to further heme 1 to 2 degrees in the final shape when the interruption of the third processed body 220 is pressed, so that the final shape is obtained when restored by the elastic force of the material .

In the correction step S55, the third hemming part 221 is formed on one side of the interruption so that the second side surface formed horizontally by the second hemming part 212 is formed at a position higher than the second hemming part 212 .

The upper surface of the second hemming portion 212 is formed in a valley shape as the horizontal hemispherical surface is formed at a position higher than the second hemming portion 212 by the third hemming portion 221, Silicon is applied to the bone to prevent the silicon from spreading around by the bone.

The protruding end 401 and the supporting end 411 are formed in the pressing member 400 and the supporting base 410. When the pressing member 400 and the supporting base 410 press the end of the third processed body 220 The third hemming portion 221 is formed.

10 is a detailed view showing a cutting step S60 of the method of manufacturing the USB-C type drawing socket 20 according to the present invention.

10, the cutting step S60 of the method for manufacturing the USB-C type drawing socket 20 according to the present invention includes sequentially cutting the lower end portion of the third processed body 220, S40) or removing the deformation generated at the lower end of the third processed body 220 during the forming step S50.

Since the lower surface of the third processed body 220 is opened but the punch having a size smaller than the inner diameter of the first processed body 200 is used in the piercing step S30, As shown in Fig.

Conventionally, the lower edge is laid out by a burring operation. In this case, a bending phenomenon occurs due to a spring back phenomenon at the lower end, a bending due to a shock line, a wave, A deviation occurs.

That is, due to this point, the lower edge of the third processed body 220 is deformed in dimension and shape when it is combined with various connectors and members in the socket 20, As the water leaks out, the waterproof performance is deteriorated.

In order to solve this problem, the cutting step S60 sequentially cuts the portion protruding toward the center from the lower edge of the third processed body 220, and removes the entire lower end from the position spaced apart from the lower edge .

The cutting punch is formed on the lower mold. When the upper mold is lowered, the cutting punch is moved from the inside of the third processed body 220 to the outside of the third processed body 220, The other end, one face, and the other face of the third processed body 220 are sequentially removed.

At this time, it is preferable to first cut the curved surfaces at both ends when the lower end of the third processed body 220 is cut, and then cut the both planes with a large area thereafter.

In order to sequentially cut the lower end portion of the third processed body 220 in the cutting step S60, each of the dies having different cutting punch directions is disposed, and each time one of the dies is transferred to each die, It is preferable that the one surface and the other surface are sequentially cut.

11 is a view showing a state in which the socket 20 is manufactured through the discharge step S70 of the USB-C type drawing socket 20 according to the present invention.

11, the discharging step S70 of the USB-C type drawing socket 20 manufacturing method according to the present invention separates the processed third processed body 220 from the sheet metal 10 So that the horizontally formed break of the third processed body 220 is discharged and discharged, whereby the socket 20 is produced.

As described above, according to the USB-C type drawing socket manufacturing method of the present invention, the waterproof structure is formed in the socket to improve the waterproof property and improve the coupling property with the member to be coupled to the socket, It is possible to prevent the outer shape of the socket from being damaged or deformed when the waterproof structure is formed, and by automatically supplying the sheet metal in a stepwise manner, the production efficiency can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken as a limitation of the scope of the present invention. Or modify it. The scope of the invention should, therefore, be construed in light of the claims set forth to cover many of such variations.

10: sheet metal 20: socket
100: guide hole 110: first notch
120: second notching part 130: drawing part
140: first connecting end 150: connecting ring
160: second connection terminal
200: first processed body 210: second processed body
211: first hemming unit 212: second hemming unit
220: third processed body 221: third hemming section
300: first core
310: second core 320: third core
400: pressurizing member 410: support
S10: Notching step S20: Drawing step
S30: Piercing step S40: Shape transformation step
S50: forming step S51: first hemming step
S52: second hemming step S53: third hemming step
S54: fourth hemming step S55: correction step
S60: Cutting step S70: Emptying step

Claims (10)

A drawing step of sequentially drawing the sheet metal being conveyed in a multi-step to form a cylindrical first processed body having different diameters at the upper and lower ends;
A shape deforming step of deforming the outer surface of the first processed body formed in the drawing step by sequentially pressing the outer surface of the first processed body into a square shaped second processed body with rounded corners;
A forming step of deforming the interruption of the second processed body deformed by the shape deformation step to a third processed body by hemming toward the outer surface;
And a discharging step of discharging the upper end connected to the sheet metal by discharging an end of the third processed material which has been hemmed in the forming step
The molding step
And an abutting surface adjacent to the lower end of the second processed body is vertically hemmed so as to be parallel to the lower end,
And the other end face adjacent to the upper end is formed horizontally so as to be perpendicular to the one end face of the hemming,
Characterized in that a bone is formed so that waterproof silicone can be applied to the one surface of the stop
A method of manufacturing a USB-C type drawing socket.
The method according to claim 1,
The drawing step
So that the thickness of the front surface of the first processed object is uniformly distributed by multi-stage drawing the sheet metal in a circular shape.
A method of manufacturing a USB-C type drawing socket.
The method according to claim 1,
The shape-
Wherein a core is formed on a front surface, a rear surface, a left side, and a right side of the first processed body, and the core formed on the left and right sides of the first processed body simultaneously presses the side surface of the first processed body, Characterized in that the edge is deformed into a rounded rectangular shape
A method of manufacturing a USB-C type drawing socket.
The method according to claim 1,
Wherein the deforming step is formed between the drawing step and the shape deforming step,
And a piercing step of piercing the lower center of the first processed body to open the lower face so that the upper and lower ends are constantly deformed when the outer face of the first processed body is pressed and deformed
A method of manufacturing a USB-C type drawing socket.
delete The method according to claim 1,
The molding step
A first hemming step of hemming the one side of the stop adjacent to the lower end of the second processed body in a downward direction by 25 to 35 degrees;
A second hemming step of hemming the interruption side which is hemmed at 25 to 35 degrees in the first hemming step to 45 to 55 degrees in the downward direction;
A third hemming step of hemming the interruption side 45 to 55 degrees in the second hemming step to 60 to 70 degrees in the downward direction;
And a fourth hemming step of hemming the one-side halved portion hemmed at 60 to 70 degrees in the third hemming step to 85 to 90 degrees in the downward direction.
A method of manufacturing a USB-C type drawing socket.
The method according to claim 6,
After the fourth hemming step
Further comprising a correcting step of repressurizing the one-side halted face by 85 to 90 degrees so as to correct the one side to be vertically maintained, and to form the bone so that silicone for waterproofing can be applied to the one side of the halt
A method of manufacturing a USB-C type drawing socket.
The method according to claim 6,
Wherein the first hemming step to the fourth hemming step comprises
Characterized in that an end face adjacent to the lower end of the second processed body is sequentially hemmed while the other face adjacent to the upper end is held horizontally
A method of manufacturing a USB-C type drawing socket.
The method according to claim 1,
And a second step of forming the second mold,
And a cutting step of sequentially cutting the lower end of the third processed body to remove the deformation generated at the lower end of the third processed body during the shape deformation step or the shaping step to improve the assemblability. doing
A method of manufacturing a USB-C type drawing socket.
The method according to claim 1,
Wherein the forming step is performed before the drawing step,
And a notching step of forming a circular drawing part on the sheet metal and forming a first notching part and a second notching part at regular intervals around the drawing part
A method of manufacturing a USB-C type drawing socket.

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