KR100470074B1 - Computer Pickup Frame, Progressive die and Manufacturing Method thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pick-up frame used as a component of a computer and a method of manufacturing the same. In the frame, side plates extending upward from both sides of the main body bottom plate, and upwards from the main body bottom plate border. And a plurality of supports and two yokes extending from the body bottom plate and facing each other inwardly, wherein the yoke is bent upwardly from the bottom plate in an integral shape.

Description

Computer pick-up frame, progressive mold for manufacturing thereof and manufacturing method thereof {Computer Pickup Frame, Progressive die and Manufacturing Method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pickup frame used as a component of a computer and a method of manufacturing the same. In particular, a computer pickup that integrally forms two yokes for fixing an optical sensor placed inside the pickup frame with the frame body. A frame, a progressive mold for producing the same, and a manufacturing method thereof.

The pickup, which is installed inside the computer's hardware, is installed on the guide drive that guides the CD-ROM inside the hardware, and reads the CD-ROM that rotates at high speed when the CD-ROM is guided in the guide drive. .

The pickup 4 is generally a frame (2) (3) for supporting the parts, a bobbin (5) placed inside the frame and the coil wound, and an optical sensor (inside the bobbin) and read the CD ROM ( 7) and two magnets 6 or the like seated on both outer surfaces of the bobbin (see FIG. 1C).

Here, the configuration of the conventional pickup frame in detail, as shown in Figures 1a and 1b, the frame body 1, the side plate (1b) is bent upward at the edge of the bottom plate (1a) and the frame It consists of two one-sided yokes 2 attached to the inner bottom of the body and positioned to face each other.

However, the conventional pickup frame is manufactured by separately manufacturing the frame main body 1 and the yoke 2 and attaching the yoke 2 to the inner bottom surface of the main body 1 by single contact or riveting. Therefore, the conventional pickup frame is completed by another attaching process, that is, attaching the main body and the yoke after manufacturing the main body and the yoke in separate processes, and thus the process is complicated and the main body and the yoke are connected to each other. Since manual work is required when the production cost increases, there is a problem falling productivity.

Looking at the progressive mold for manufacturing the main body 1 of the conventional pickup frame described above, as shown in Figure 2, it is largely composed of the lower mold 10 and the upper mold (20).

The lower die 10 has a die plate 10a disposed at the uppermost portion, a lower die backing plate 10b supporting the lower die plate at the middle thereof, and a lower die die holder 10c formed at a lower portion of the lower die backing plate.

Here, the upper surface of the die plate 10a has a pair of guide rails 12, side cut die holes 13, pilot piercing die holes 14, stopper 15, and guide lifter pins 16 in the working progress direction. And the like are respectively provided.

A stripper plate 20a is disposed at the bottom of the upper die 20, and an upper die backing plate 20b, a punch plate 20c, a punching backing plate 20d, and an upper die punch holder 20e are sequentially disposed on the top thereof. It is arranged.

Here, the pair of guide escape grooves 22, the side cut punch 23, the pilot 24, etc. are each provided in the lower surface of the stripper plate 20a.

In the conventional method of manufacturing the frame body with the progressive mold, as illustrated in FIG. 3, when the strip stoke-type metal material 30 enters the mold by the guide rail 12, the material may be formed by continuous operation. 30) is processed step by step (step, stage or station) to manufacture the frame body (1) in the last step. After the yoke 2 is made in a separate process, the frame 3 is completed by attaching the frame body 1 and the yoke 2 by single contact or riveting (see FIGS. 1A and 1B).

The method of manufacturing the conventional frame body 1 will be described in more detail. When the material 30 enters between the pair of guide rails 12, both sides of the material 30 in the first step (stage). Semi-notching processing to cut out the part, and in the second step (stage), the piercing processing to make a hole in the material 30 at regular intervals, and in the third step (stage) Semi-notching is performed to bend the material 30.

In the fourth stage (stage), cold forging is carried out in the middle part, and in the fifth stage (stage), the children are finished in the sixth stage (stage). Make a side cut. Side cutting must be done after forging. The frame 3 is finally manufactured through the process of semi-notching, piercing, trimming, bending, etc. between the ninth step and the seventeenth step.

On the other hand, the guide lifter 16 installed on the lower die 10 is configured to be up / down (up / down), the guide lifter 16 when the upper die 20 (down) down (down) While down to the bottom, the material 30 is in close contact with the bottom of the lower mold, and when the upper mold 20 is up, the guide lifter 16 is also up, while the material 30 is lowered from the bottom of the mold 10. It is spaced apart from the smoothly moving direction.

The state in which the material 30 is guided to the guide lifter 16 will be described in more detail. Both side portions of the material 30 are guided to the guide grooves 16a of the guide lifter 16. In addition, the interval pilots 24 ′ provided at equal intervals on the stripper plate 20 a function to determine the exact feed pitch of the material 30 when stamping.

As shown in FIG. 1A, the frame main body 1 manufactured through such a process does not integrally form the yoke 2 inside the main body 1. Therefore, since the frame body 1 and the yoke 2 are each made in a separate process, and are finally completed through the process of assembling and attaching the two parts again, there is a problem that productivity is reduced while manufacturing cost increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a computer pickup frame, a progressive mold for manufacturing thereof, and a manufacturing method thereof, which can increase productivity by integrally forming a pickup frame body and a yoke.

1A is an isolated perspective view of a frame body and a yoke constituting a conventional computer pickup frame;

1B is an assembled perspective view of a frame body and a yoke as a conventional computer pickup frame;

Figure 1c is an illustration showing that each component is placed in a conventional computer pickup frame,

2 is a perspective view of an upper mold and a lower mold showing a progressive mold for manufacturing a conventional computer pickup frame;

3 is a partially cutaway perspective view showing a strip layout processing stage (stage or station) of a conventional mold for producing a computer pickup frame;

4 is a perspective view of a computer pickup frame according to the present invention;

Figure 5 is a side cross-sectional view of Figure 4,

6 is an exemplary view showing that the components are placed in the computer pickup frame according to the present invention;

7 is a perspective view of the upper and lower molds of the progressive mold for producing a computer pickup frame according to the present invention;

8 is a plan view showing a die plate of the progressive mold for producing a computer pickup frame according to the present invention;

9 is a plan view showing a stripper plate of the progressive mold for producing a computer pickup frame according to the present invention;

10 is a partial cutaway sectional view of a progressive mold according to the present invention;

11 is a sectional side view showing a main portion of a progressive mold according to the present invention;

12A is a sectional view showing an operation relationship of a progressive mold according to the present invention.

Figure 12b is a sectional view showing the operating relationship of the progressive mold according to the present invention, the other side cross-sectional view of the lowered state;

Figure 13a is a plan view and a side view of a strip layout showing a step by step process for manufacturing a pickup frame with a progressive mold according to the present invention;

FIG. 13B is a top and side view of the continuous strip layout of FIG. 13A;

<Explanation of symbols for the main parts of the drawings>

100: computer pickup frame, 100a: material,

110: The frame body, 120: York,

200: lower die, 210: die plate,

220: lower die backing plate, 230: lower die holder,

240: lower type ironing part, 241: ironing punch holder,

242, 242a: ironing punch, 243: ironing punch pad,

244: ejector pin, 245: spring,

300: upper part, 310: stripper plate,

320: upper backing plate, 330: punch plate,

340: punching backing plate, 350: upper punch holder,

360: hieroglyphic ironing part, 361: ironing punch groove,

362: ejector pin, 364: oil hose.

The computer pickup frame of the present invention for achieving the above technical problem, the side plates extending from each side of the body bottom plate upward, a plurality of supports extending upward from the body bottom plate border, and the body bottom It includes two yokes extending from the plate and opposed to each other inside, the yoke is bent (bending) in a unitary shape upward from the bottom plate.

Further, the computer pickup frame of the present invention is characterized in that, in addition to the above configuration, the yoke is made thinner than the thickness of the body bottom plate, while its height is formed at least equal to or greater than the side plates.

In addition, the computer pick-up frame of the present invention, in addition to the above configuration, one of the side plates is formed in a channel shape through three bending, one of the support is formed in a Z shape through two bending. do.

The progressive mold for manufacturing a computer pickup frame according to the present invention for achieving the above technical problem is formed with a pair of guide rails, side cut die holes, pilot die holes, stoppers, and guide lifter pins on a die plate in a work advancing direction, respectively. A lower brother doing; In the die of the progressive, comprising a guide escape groove, a side cut punch and a pilot formed on the stripper plate in the working direction so as to face the lower die, wherein the lower die is a punch for extrusion and ironing Lower type ironing unit provided; The upper mold may include an upper ironing unit having an ironing punch groove for extrusion after bending at a position corresponding to the lower mold ironing unit, and the ironing punch 242 may include the die plate ( It is formed in 210 in the vertical direction; The ironing punch groove 361 is formed in the stripper plate 310 in the vertical direction so that the ironing punch 242 can be inserted and positioned.

In addition, the progressive mold for producing a computer pickup frame of the present invention, in addition to the above configuration, the lower die ironing portion is inserted into and fixed to the lower portion of the die plate, and fixed to the ironing punch holder and extends upwardly. An ironing punch, an ironing punch pad which is inserted into the upper portion of the die plate in a liftable manner, and the ironing punch slidably penetrates in the center thereof, and a lower surface of the ironing punch pad penetrating the ironing punch holder. It is characterized in that it comprises a pad ejector pin that is connected to the spring mounted to the lower portion up and down.

The progressive die for producing a computer pickup frame according to the present invention is characterized in that the ironing punch and the ironing punch groove are formed in plural in a straight line in addition to the above configuration.

In addition, the progressive die for producing a computer pickup frame according to the present invention is characterized in that, in addition to the above configuration, the plurality of ironing punches are formed in a round shape close to a square in an upper cross section thereof in a traveling direction.

Further, the progressive mold for producing a computer pickup frame according to the present invention, in addition to the above configuration, the upper type ironing portion is provided at an adjacent position of the ironing punch groove, and is a spring-loaded material ejector pin to be operated up and down. It characterized in that it comprises a.

In addition, the progressive die for producing a computer pickup frame according to the present invention is characterized in that, in addition to the above configuration, the upper ironing portion includes an oil hose connected to the ironing punch groove.

The computer pickup frame manufacturing method of the present invention for achieving the above technical problem, a) a pilot piercing step of punching a hole in the material, b) a forging step of forming by applying pressure to the material, c) the H-shaped material A notching step of removing the yoke blank and forming two yoke blanks; and d) bending and ironing the yoke blank by simultaneously bending the two yoke blanks upward and forming the yoke through ironing; and e) a side plate. And a notching and primary bending step to remove the part to form the support, and f) a slitting process to raise a part of the bottom plate while an indenting process to form protrusions on the bottom surface. And an indenting step, g) a cam side notching step for cam side notching processing of the upper end of the yoke, and h) a secondary bending step for bending the side plate and the support, and i) the side plate and the support. A piercing step of piercing; and j) a chamfering step of chamfering the inner circumferential surface of the hole drilled in the side plate; and k) a finishing bending step of bending the side plate in a channel shape to complete a pickup frame; and l) the completed And a parting step of parting the pickup frame from the material.

In addition, the computer pick-up frame manufacturing method of the present invention, in addition to the above configuration, the bending and ironing step is performed through the first, second, third, and fourth ironing processing step, the first In the secondary processing step, the bending and extrusion processing is performed, and in the fourth processing step, the sizing or restriking processing is performed to obtain the required dimensions.

In addition, the computer pick-up frame manufacturing method of the present invention, in addition to the above configuration, in the notching and the first bending step to bend downward 90 ° to the center portion to form a channel-shaped side plate, to form a Z-shaped support At the same time bending the connection portion 45 ° upwards, the end portion is characterized in that 90 ° bending downwards.

In addition, the method of manufacturing a computer pick-up frame of the present invention, in addition to the above configuration, in the second bending step, the connecting portion is bent upward by 90 ° to form a channel side plate, and the connecting portion is upwardly formed to form a Z-shaped support. It is characterized by bending at 45 °.

In addition, the computer pick-up frame manufacturing method of the present invention, in addition to the above configuration, in the finishing bending step, the end portion is bent downward 90 degrees to form a channel-shaped side plate.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

Figure 4 is a perspective view of a computer pickup frame of the present invention, Figure 5 is one side cross-sectional view of FIG.

The computer pickup frame 100 of the present invention is formed by bending the body 110 and the side plates 112, 113, a plurality of supports 114, 115, 116, 117 and the body integrally. The left and right two yokes 120 are included.

The main body 110 includes a bottom plate 111, side plates 112, 113, and supports 114, 115, 116, and 117. Here, the side plate 113 of one side of the side plates are formed in the channel shape through the bending three times, the support 114 is formed in the Z shape through the two bending.

Meanwhile, the two side plates 112 and 113 fix the magnet and the channel type side plate 113 fixes the substrate, and the Z-shaped support 114 is used to fix the pickup to the computer.

The yoke 120 is a component for fixing an optical sensor embedded in the frame, and unlike the conventionally manufactured and attached assembly to the bottom plate, the yoke 120 is bent, compressed, and integrated upward from the bottom plate 111. It is characterized by being formed integrally through ironing and sizing. At this time, the yoke 120 is thinner than the thickness of the body bottom plate 111, the height is preferably at least equal to or greater than the side plates 112, 113.

In order to form the yoke 120, it is necessary to perform a semi-notching processing to remove a H-shape at a predetermined position of the material 100a, and the one and the other yoke blanks 101 formed through the notching processing. By bending vertically upward and extrude to form a yoke 120 through ironing and sizing processing to increase the area while thinning the thickness. At this time, the thickness of the yoke 120 becomes thinner than the yoke blank 101 which is the original material through ironing, and its height (width) is also longer than the original blank development length before bending (Fig. 11). Reference).

On the other hand, in the present invention it is necessary to ironing the yoke blank and then compressing, there are two main reasons. First, to reduce the thickness of the yoke 120, which can be expected to miniaturize the parts by reducing the thickness of the yoke. The second is to increase the height of the yoke 120, because the height is low in the state that the yoke blank 101 is bent upward only, so it cannot be used as a pickup frame. That is, when the height of the yoke 120 is low, it is not possible to install a magnet, a coil wound bobbin, an optical sensor, and the like placed therein. Therefore, the present invention is required to iron the yoke blank, followed by ironing with extrusion to increase the height while thinning the thickness.

In the present invention, the ironing process is preferably made through a number of stages (stage, station, step), particularly in the first step to be extruded and ironed at the same time as the bending, the final step in the precise dimensions required in the design drawings The work is done with sizing and listwriting to improve the accuracy of the thickness and width (height) to obtain the

Meanwhile, in the present specification, the "blank for yoke 101" is formed after semi-notching the material 100a, and refers to the state of the material before bending, and the "yoke 120" for the yoke blank. Reference is made to the shape formed by bending, extruding, ironing, sizing and re-listing.

Figure 6 shows that the components are placed in the computer pickup frame 100 of the present invention described above. A bobbin 5 wound with a coil is fitted to the left and right yokes 120, and a magnet 6 is attached between the left and right yokes 120 and the side plate 112, respectively. In addition, an optical sensor 7 is attached to the center of the bobbin 5. The substrate 8 is attached to the center side plate 113 and the edge side plate 114 among the side plates 112.

In the present invention as described above, the pickup frame is bent upwardly by bending the yoke formed in the main body to be integrally manufactured, thereby increasing productivity.

Hereinafter, the progressive mold for manufacturing the computer pickup frame of the present invention described above is as follows.

Figure 7 is a perspective view of the upper and lower molds of the progressive mold for producing a computer pickup frame according to the present invention, Figure 8 is a plan view showing a die plate of the progressive mold for producing a computer pickup frame according to the present invention, Figure 9 is a computer according to the present invention Fig. 10 is a plan view showing a stripper plate of the progressive die for pick-up frame production, and Fig. 10 is a partial cutaway cross-sectional view of the progressive die according to the present invention.

The progressive mold for producing a computer pickup frame according to the present invention includes a lower mold 200 having a lower mold ironing part 240 and an upper mold 300 having an upper mold ironing part 360.

The lower die 200 has a die plate 210 disposed at the top thereof, a lower die backing plate 220 supporting the lower die plate, and a lower die holder 230 disposed at the bottom of the lower die backing plate. The lower type ironing part 240 is provided.

On the upper surface of the die plate 210, a pair of guide rails 211, side cut die holes 212, pilot piercing die holes 213, stopper 214, guide lifter pins 215, An ironing punch 242 and an ironing punch pad 243 are provided.

11 illustrates the lower type ironing part 240 in more detail, and includes an ironing punch holder 241, an ironing punch 242, an ironing punch pad 243, a pad ejector pin 244, and a spring 245. ) Is included.

Here, the ironing punch holder 241 is inserted into the lower portion of the die plate 210 and serves to fix the ironing punch 242. Holes are formed on the left and right sides of the cross section so that the pad ejector pins 244 can pass therethrough.

The ironing punch 242 is positioned so as to correspond to the ironing punch groove 361, and irons the yoke blank 101 of the raw material 100a upward and simultaneously irons. The lower portion of the ironing punch is fixed to the ironing punch holder 241, and the upper portion of the ironing punch is slidably penetrated by the up and down ironing punch pads 243 inserted into the die plate 210, and the die plate ( 210) is always projected and fixed to the upper surface.

The ironing punch pad 243 is a component that is inserted into the die plate 210 so as to be lifted and lowered, and the ironing punch 242 is slidably penetrated to the center thereof. When the ironing punch pad 243 is raised, its upper surface is raised slightly higher than the upper surface of the ironing punch 242. The material 100a comes into contact with the upper surface of the pad 243 and is fixed to the guide lifter pin 215. The pad 243 serves to prevent the separation of the material 100a together with the guide lifter pin 215 and to peel off the material 100a so that it does not come off when the material 100a is pulled out of the ironing punch 242.

The pad ejector pin 244 penetrates the ironing punch holder 241 and is connected to the lower surface of the ironing punch pad 243, and is mounted with a spring 245 at the lower portion to push the pad 243 upward. To do. One such pad ejector pin 244 is provided on each of the left and right sides of one pad 243.

On the other hand, as shown in Figure 10, in the present embodiment, four lower type ironing unit 240 is installed side by side in a straight line in the working progress direction at a position corresponding to the upper type ironing unit 360. At this time, the four ironing punches 242 are formed differently in the upper cross-sectional shape. In other words, the shape is closer to the square from the round shape toward the advancing direction. This is necessary because the first ironing punch 242a bends the yoke blank 101 of the material 100a upward, so that the upper cross-sectional shape is largely rounded, but gradually the bending is progressed. This is because it is required to precisely process the blank for yoke.

The upper die 300 has a stripper plate 310 disposed at the bottom thereof, and the upper die backing plate 320, the punch plate 330, the punching backing plate 340, and the upper die punch holder 350 are sequentially formed. On the other hand, it is equipped with the upper type ironing part 360 especially.

Here, the lower surface of the stripper plate 310 is provided with a pair of guide escape grooves 311, a side cut punch 312, a pilot 313, and an ironing punch groove 361.

11 illustrates the upper ironing unit 360 in more detail, and includes an ironing punch groove 361, an ejector pin 362, and a spring 363.

The ironing punch groove 361 is formed in the up and down direction on the stripper plate 310 at a position corresponding to the ironing punch 242. The ironing punch groove 361 serves to guide the yoke blank 101 of the material to form the yoke 120 of the frame in the manufacturing process.

Meanwhile, an oil hose 364 is connected to supply oil into the ironing punch groove 361. The oil hose 364 is connected to the ironing punch groove 361 through the punch plate 330.

The ejector pin 362 penetrates the stripper plate 310 at a position slightly away from the ironing punch groove 361, and a spring 363 is mounted on the upper portion thereof so as to be operated up and down. Here, the position where the ejector pin 362 slightly falls from the groove 361 indicates a position where the ejector pin 362 may touch the material without leaving the material 100a when the ejector pin 362 is lowered. The ejector pins 362 serve to smoothly eject the material 100a when the upper mold rises.

12A and 12B, the operation relationship between the lower ironing unit 240 and the upper ironing unit 360 will be described below.

When the material 100a notched to the lower type ironing part 240 enters, both sides of the material are supported by the guide lifter pin 215, and the lower surface thereof is supported by the raised ironing punch pad 243. When the part of the yoke blank 101 formed by the notching of the raw material 100a enters the position where the ironing punch 242 is located, the upper die 300 is lowered. The guide lifter pin 215, the workpiece 100a, and the ironing punch pad 243 are all operated downward by the lowering of the upper die, and the ironing punch 242 is inserted into the ironing punch groove 361. The yoke blank of 100a is bent into the ironing punch groove 361 to be extruded and ironed. At this time, the ejector pin 362 in the upper ironing part 360 is in a state in which the material 100a is pressed, and oil is supplied into the ironing punch groove 361 through the oil hose 364.

Then, when the upper die 300 is raised, the guide lifter pin 215, the material 100a, and the ironing punch pad 243 are raised to their original positions, and the ironing inserted into the ironing punch groove 361 is raised. The punch 242 and the yoke blank 101 of the bent material are removed. At this time, the ironing punch pad 243 is supported by the lower surface of the material so that the yoke blank is smoothly removed, and the ejector pin 362 is pressed by the upper surface of the material.

By repeatedly performing the above operation, the shape of the precise yoke 120 required in the design dimension is obtained. However, the operation relationship described above is described as the first step of the four-stage ironing process, in which the yoke blank 101 is made of bending, extrusion and ironing. However, only the ironing process is performed from the second stage, thereby obtaining the shape of the precise yoke 120 required by the design dimension.

Hereinafter, a method (strip layout) of manufacturing a computer pickup frame with the above-described progressive mold will be described with reference to FIGS. 13A and 13B.

The pickup frame manufacturing method (strip layout) of the present invention includes;

a) a piercing step (steps 1 and 2) of drilling holes 102 at regular intervals on both sides of the material 100a,

b) a forging step (third step) of forming the material by applying pressure to the material;

c) a notching step (steps 4 and 5) of separating the material into H-shapes and forming two yoke blanks 101;

d) bending and ironing steps (sixth, seventh, eighth and ninth steps) of bending the two yoke blanks 101 upwards and simultaneously forming the yoke 120 through ironing;

e) A portion of the material is removed to form the side plates 112, 113 and supports 114, 115, 116 and 117, and the side plates 113 and the supports 114 are first bent. Notching and first bending step (11, 12, 13, 14, 15 steps) (see Fig. 4),

f) Slitting and indenting step of indenting processing to form protrusions on the bottom surface at the same time as slitting processing to raise a portion of the bottom plate 111 (step 16) (See Fig. 4)

g) a cam side notching step (17th step) of cam side notching the upper end of the yoke 120;

h) a secondary bending step (step 19) (see FIG. 4) for secondary bending of the side plates 112, 113 and the supports 114, 115, 116, 117;

i) a piercing step (20th step) for drilling holes in the channel-shaped side plate 113 and the Z-shaped support 114,

j) a chamfer step (step 21) of chamfering the inner circumferential surface of the hole drilled in the channel-shaped side plate 113;

k) a finishing bending step (step 22) of bending the channel side plate 113 into a channel shape to complete the shape of the pickup frame 100;

l) The strip layout is completed by including a parting step (step 24) to process the completed pickup frame 100 from a material.

Here, the piercing step (steps 1 and 2) is to drill holes 102 at regular intervals on both sides of the material 100a in the first step, and forging piercing in the second step.

In the bending and ironing step (sixth to ninth steps), the first (sixth step), the second (7th step), the third (8th step), the fourth (9th step) ) It is made through ironing processing step, but in the 1st (6th step) processing step, it is made through bending and extrusion processing, and in the 4th (9th step) processing step, sizing to obtain the required dimensions It is preferable to perform the machining or the list-writing process. On the other hand, both the extrusion process of the first processing step and the sizing processing and the list-writing processing of the fourth processing step is used as a term included in the ironing process.

In the notching and primary bending steps (steps 11 to 15), the notching in the eleventh step is performed in order to form the side plates 112, 113 and the supports 114, 115, 116, 117. It is the process of removing the parts primarily. The notching in the twelfth step is a process of secondary stripping off of parts of the material to form the side plates and supports. The notching of the thirteenth step is a process of tertiary removal of parts of the material to form the side plates and supports. The notching in the fourteenth step qualitatively removes portions of the material to form the side plate and the support, while bending the center portion downward by 90 ° to form the channel side plate 113, and the Z-shaped support. In order to form 114, the process of bending the connecting portion upward by 45 ° and at the end thereof is a 90 ° bending downward process. The notching of the fifteenth step is a process of fifth removal of parts of the material to form side plates and supports.

In the second bending step (19th step), the joint is bent upward by 90 ° to form the channel side plate 113, and the joint is bent upward by 45 ° to form the Z-shaped support 114. Processing.

In the final bending step (22nd step), the end portion is bent downward by 90 ° to form the channel-shaped side plate 113.

In the meantime, the tenth, eighteenth and twenty-third stages are idle stages, which are processes that do not undergo processing during the process.

Therefore, the method (strip layout) of manufacturing the computer pick-up frame of the present invention consists of a total of 24 steps (stage) including the kids step.

As described above, the progressive mold of the present invention has the effect of forming the pickup frame body and the yoke into an integral shape by continuously performing notching, bending, extruding, ironing, and sizing.

In addition, the present invention can be produced in a state in which the pickup frame body and the yoke are integrally formed to allow mass production, thereby increasing productivity and lowering the manufacturing cost.

Claims (14)

Side plates 112 and 113 extending upward from both sides of the body bottom plate 111, and a plurality of supports 114, 115 and 116 extending upward from the edge of the body bottom plate 111. 117 and two yokes 120 extending from the body bottom plate 111 and opposing each other on the inside, The yoke (120) is a computer pickup frame, characterized in that the bending bent in an integral shape upward from the bottom plate (111). The method of claim 1, The yoke (120) is thinner than the thickness of the body bottom plate (111), while the height thereof is at least equal to or greater than the side plate (112) (113). The method according to claim 1 or 2, The side plate (113) is formed in a channel shape through three bending, and the support (114) is a computer pickup frame, characterized in that it is formed in a Z shape through two bending. In the die plate 210, a pair of guide rails 211, side cut die holes 212, pilot piercing die holes 213, stoppers 214, and guide lifter pins 215, respectively, A lower mold 200 formed therein; And an upper die 300 having a guide escape groove 311, a side cut punch 312, and a pilot 313 formed in the stripper plate 310 so as to face the lower die 200, respectively. In the progressive mold, The lower mold 200 includes a lower mold ironing unit 240 having an ironing punch 242; The upper die 300 includes, an upper die ironing portion 360 having an ironing punch groove 361; The ironing punch 242 is formed in the die plate 210 in a vertical direction; The ironing punch groove 361 is formed in the stripper plate 310 in the vertical direction so that the ironing punch (242) can be inserted and positioned, the progressive mold for producing a computer pickup frame. The method of claim 4, wherein The lower type ironing part 240 includes an ironing punch holder 241 inserted into and fixed to a lower portion of the die plate 210, an ironing punch 242 fixed to the ironing punch holder, and extending upwardly. And an ironing punch pad 243 through which the ironing punch 242 is slidably inserted into the die plate 210 so as to be lifted up and down, and the ironing punch holder 241. And a pad ejector pin (244) penetrated to a lower surface of the ironing punch pad (243) and mounted to a lower portion of the ironing punch pad (243) by a spring (245) to move up and down. The method according to claim 4 or 5, The ironing punch (242) and the ironing punch groove (361) is formed in a plurality in a straight line progressive mold for producing a computer pickup frame. The method of claim 6, The plurality of ironing punches (242) is a progressive mold for producing a computer pickup frame, characterized in that the upper cross-sectional shape is formed in a round shape close to the square as the progress direction. The method of claim 4, wherein The upper ironing part 360 may include a material ejector pin 362 installed at a position adjacent to the ironing punch groove 361 and mounted with a spring 363 thereon to be operated up and down. A progressive mold for producing a computer pickup frame, characterized by the above-mentioned. The method according to claim 4 or 8, The upper ironing part 360 is a progressive mold for producing a computer pickup frame, characterized in that it comprises an oil hose (364) connected to the ironing punch groove (361). a) a pilot piercing step of drilling a hole 102 in the material 100a, b) a forging step of forming the material by applying pressure to the material; c) a notching step of separating the material into H-shape and forming two yoke blanks 101; d) a bending and ironing step of bending the two yoke blanks 101 upwards and simultaneously forming the yoke 120 through ironing; e) a notching and primary bending step of removing a portion of the material to form the side plates 112, 113 and supports 114, 115, 116, 117, f) a slitting and indenting step of indenting to form protrusions on the bottom while simultaneously performing a slitting process to raise portions of the bottom plate 111; g) a cam side notching step of cam side notching the upper end of the yoke 120; h) a secondary bending step of bending the side plates 112, 113 and the supports 114, 115, 116, 117, i) a piercing step of drilling holes in the side plate 113 and the support 114, j) a chamfering step of chamfering the inner circumferential surface of the hole drilled in the side plate 113; k) a finishing bending step of completing the pick-up frame 100 by bending the side plate 113 into a channel shape; l) Parting step of processing the finished pickup frame 100 from the material, characterized in that it comprises a parting step. The method of claim 10, The bending and ironing step may be performed through the first, second, third, and fourth ironing processing steps, but the first and second ironing steps may be performed by bending and extruding. In the fourth processing step, the computer pick frame manufacturing method characterized in that the sizing processing to obtain the required dimensions. The method according to claim 10 or 11, wherein In the notching and the first bending step, the center portion is bent downward by 90 ° to form the channel side plate 113, and the connecting portion is bent upward by 45 ° to form the Z-shaped support 114. The end portion of the computer pick frame manufacturing method characterized in that the bending 90 ° downward. The method according to claim 10 or 11, wherein In the second bending step, bending the connecting portion upward 90 ° to form the channel-shaped side plate 113, and bending the connecting portion upward 45 ° to form the Z-shaped support 114 How to make a pickup frame. The method according to claim 10 or 11, wherein The finishing bending step is a computer pick frame manufacturing method, characterized in that for bending the end portion 90 degrees downward to form a channel-shaped side plate (113).