KR100466576B1 - Fixing Jig Device For A PCB - Google Patents

Abstract

PURPOSE: A jig apparatus is provided to prevent warpage of a printed circuit board and faults and failures in soldering, by accurately aligning the horizontal surface of the print circuit board during soldering. CONSTITUTION: A jig apparatus(100) comprises a jig body(10) having a slide plate(20) accommodated therein; a locking lever connected to an end of the jig body such that the locking lever compulsorily transfers the slide plate, wherein the locking lever has a rod stopper(11d) for preventing the locking lever from being loosened; a bottom plate(30) fixed at a bottom of the jig body so as to support the slide plate; and a plurality of level pins(40) arranged on a top surface of the bottom plate and protruded from a top surface of the jig body, penetrating through the slide plate. Upward movements of the level pins are limited by protrusions formed in the jig body. The level pins are fixed by the slide plate which is transferred by the rotation of the locking lever.

Description

Fixing Jig Device For Fixing Jig Device {Fixing Jig Device For A PCB}

The present invention can more accurately and accurately match the horizontal surface of the printed circuit board during soldering operation of the printed circuit board to prevent bending deformation and poor soldering of the printed circuit board, and also can shorten the work time, thereby improving work efficiency within the same time. The present invention relates to a fixing jig for a printed circuit board having a maximum possible structure.

Generally, when the soldering work is performed in the state where the chips such as semiconductors or diodes are mounted on the printed circuit board, the fixed jig is used to prevent the soldering defects caused by the warpage of the printed circuit board. After fixing the soldering work.

Hereinafter, a conventional fixing jig will be described with reference to the accompanying drawings.

1A is a partial cross-sectional view showing a conventional fixing jig device from the side, and FIG. 1B is a side view showing a state of use of the conventional fixing jig device.

As shown in Figure 1a and 1b, the conventional fixing jig device 9 is configured by inserting a plurality of level pins (3) on top of the jig body (1) placed horizontally.

At this time, the printed circuit board 5 is fixed to both sides with a clamp 200, and then the lower surface on which the chip 7, such as a semiconductor or a diode, is mounted on the end of the level pin 3 and the printed circuit during soldering work. The warping phenomenon of the substrate 5 is prevented.

This configuration requires leveling of the level pin 3 of the portion where the chip 7 is not mounted because the horizontal surface must be aligned without damaging the chip 7 such as a semiconductor or a diode mounted on the lower surface of the printed circuit board 5. Except for this, only the level pin 3 at the point where the chip 7 is located is manually configured to directly support the printed circuit board 5 by manually removing it.

However, even if the position of the level pin 3 is adjusted, it is not easy to arrange the level pin 3 to avoid the chip 7 such as a semiconductor or a diode, and the portion on which the chip 7 is mounted is very heavy. Due to the sag caused by its own weight, it is difficult to accurately maintain the level of the printed circuit board 5, which causes a considerable problem in the soldering operation.

When the jig device 9 is stored after soldering, a problem arises in that the level pin 3 is lost as the level pin 3 is separated, and only the level pin 3 needs to be refilled. There was a disadvantage that the maintenance of the device was expensive.

Therefore, there is a need for a permanent and durable fastening jig device that supports the horizontal surface of the printed circuit board 5 more quickly and accurately, and does not require maintenance costs.

Accordingly, the present invention has been made in view of the above-described conventional problems, and the first object of the present invention is to adjust the horizontal plane of the printed circuit board more quickly and accurately during soldering operation of the printed circuit board, so that the bending deformation and the poor soldering of the printed circuit board are achieved. It is possible to prevent, and also to shorten the work-time time to provide a jig device for fixing a printed circuit board structure that can maximize the work efficiency in the same time.

A second object of the present invention is to provide a jig device for fixing a printed circuit board having a permanent and durable structure that does not require maintenance cost.

Objects of the present invention as described above, the jig body is inserted into the slide plate to be transferred to the left / right by the rotation of the locking lever formed on the other side; A bottom plate inserted into and fixed to the jig main body to support the slide plate; And a plurality of level pins protruded from an upper surface of the bottom plate and partially protruded from the upper surface of the jig body across the slide plate, wherein the level pins are limited in elevation by a step formed in the jig body. And it is achieved by a jig device for fixing a printed circuit board, characterized in that fixed by a slide plate which is transported in accordance with the rotation of the locking lever.

In the jig body, a plurality of first through holes are formed in parallel along the longitudinal direction to partially protrude the level pin, and on one side, the jig main body is inserted and fixed to face the locking lever so as to elastically support the inserted slide plate. It is preferably configured to further comprise a plurality of return springs.

The locking lever is configured to include a lever coupled to the lever, a screw coupled to the lever, and a flange coupled to the other side of the jig main body for supporting the screw. It is desirable to be.

The locking lever is preferably configured to further include a round bar stopper to limit the rotation to prevent loosening.

The slide plate further comprises a fixing unit seated on one side of the plurality of stopper grooves formed on the upper surface to press-fix each level pin, and an elastic body disposed on the other side of the stopper groove to elastically support the fixing unit. It is desirable to be.

In the fixing unit, it is preferable that a stopper hole is formed in which the diameter gradually decreases in a direction opposite to the moving direction of the slide plate.

Preferably, the stopper groove further includes a second through hole eccentric to one side to accommodate the elastic body and communicate with the stopper hole of the fixing unit.

In the above, the elastic body is preferably any one selected from a rubber ring, a coil spring, and a span block, urethane foam, a honeybale, and a latex block having excellent elastic return force.

Preferably, the stopper groove further includes a partition wall which protrudes in order to prevent the elastic body from tipping.

In the upper surface of the bottom plate is formed a plurality of support grooves corresponding to the first through hole of the jig body and the coil spring is built so as to support the level pin, the lower surface is fixed to the conductive metal material It is preferable that it further comprises a permanent magnet inserted at an equally priced price along the longitudinal direction.

Preferably, each level pin is protruded in the support groove of the bottom plate and partially protrudes through the second through hole of the stopper groove of the slide plate and the stopper hole of the fixing unit to the first through hole of the jig body.

Wherein each level pin is limited by the first projection frame guided to correspond to the support groove of the bottom plate, and the step formed in the jig body spaced apart from the first projection frame at a predetermined interval It is preferable that the second protrusion frame is formed.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

Figure 1a is a partial cross-sectional view showing a conventional fixing jig device from the side,

1B is a side view showing a state of use of a conventional fixing jig device;

Figure 2a is a perspective view of a jig device for fixing a printed circuit board according to the present invention,

Figure 2b is an exploded perspective view of a jig device for fixing a printed circuit board according to the present invention.

Figure 3a is a first perspective view showing the bottom of the jig body extracted from Figure 2,

3B is a second perspective view showing the other surface of the jig main body of FIG. 3A;

Figure 3c is an exploded perspective view showing a locking lever extracted in Figure 3a,

Figure 4a is a perspective view of the slide plate extracted from Figure 2,

4b is a plan view of the slide plate of FIG. 4a,

Figure 5a is a perspective view of the bottom plate taken in Figure 2,

FIG. 5B is a bottom view of the floor play of FIG. 5A; FIG.

6 is a front view showing a level pin extracted from FIG.

Figure 7a is a state of use before placing the substrate on the jig device for fixing the printed circuit board according to the present invention,

Figure 7b is a state of use of the substrate on the fixed jig device for printed circuit board according to the present invention,

8 is an operation diagram showing the operation of the slide plate according to FIG. 7b.

<Description of Symbols for Main Parts of Drawings>

1: jig main body 3: level pin

5: printed circuit board (PCB) 7: chip

9: conventional jig device

10: jig main body 10a: first through hole

11: locking lever 11a: lever

11b: flange 11c: screw

11d: Round Bar Stopper 12: Lock Bolt

12a: return spring 13: step

20: slide plate 21: stopper groove

21a: 2nd opening 21b: partition

22: fixed unit 22a: stopper hole

23: rubber ring 30: bottom plate

31: support groove 32: permanent magnet

33: coil spring 40: level pin

41: first protrusion frame 42: second protrusion frame

100: fixing jig device 200: clamp

300: printed circuit board (PCB) 310: chip

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the jig device for fixing the printed circuit board according to the present invention.

Figure 2a is a perspective view of a jig device for fixing a printed circuit board according to the present invention, Figure 2b is an exploded perspective view of a jig device for fixing a printed circuit board according to the present invention, Figure 3a is a bottom surface of the jig main body extracted from FIG. 3B is a second perspective view showing the other surface of the jig main body of FIG. 3A, and FIG. 3C is an exploded perspective view showing the locking lever taken from FIG. 3A.

As shown in Figure 2a, the present invention can more accurately and accurately match the horizontal surface of the printed circuit board 300 during the soldering operation of the printed circuit board 300 can prevent a poor soldering operation due to the bending deformation of the printed circuit board 300. The present invention also relates to a jig device 100 for fixing a printed circuit board having a structure capable of shortening work vacancy time and maximizing work efficiency within the same time.

The present invention is composed of three parts, as shown in Figure 2b, which is a jig main body 10 is inserted into the slide plate 20 is transferred to the left / right by the rotation of the locking lever 11 formed on the other side, and The bottom plate 30 is inserted into and fixed to the jig body 10 to support the slide plate 20, and is supported on the top surface of the bottom plate 30 to cross the slide plate 20. 10) is configured to include a plurality of level pins 40 protruding part of the upper surface.

As shown in FIG. 3A, the jig main body 10 has a first through hole 10a for partially protruding the level pin 40 from the upper surface thereof in parallel along the longitudinal direction, and the locking lever 11 on the other side thereof. Is formed structure.

At this time, as shown in Figure 3b, it takes the shape of a rectangular shape in which the lower portion is opened so that the inner space is formed, which is relatively longer than the length of the slide plate 20 so that the slide plate 20 to be inserted to the left / right flows The internal space of the prepared.

Meanwhile, as shown in FIG. 3C, the locking lever 11 is coupled to the lever 11a and the screw 11c coupled to the lever 11a, and coupled to the other side of the jig main body 10 to support the screw 11c. It consists of the flange 11b.

The locking lever 11 is provided with a screw (11c) for transferring the slide plate 20 to the left / right in accordance with the rotation direction of the lever (11a), the round bar to limit the rotation to prevent loosening It is comprised further including the stopper 11d. In this configuration, the locking lever 11 is a structure that can be rotated forward / reverse within a 360 ° range.

In addition, the jig body 10 further includes a plurality of lock bolts 12 and return springs 12a inserted and fixed to face the locking lever 11 so as to elastically support the slide plate 20. . The lock bolt 12 is to prevent the departure of the return spring (12a), the two are fastened at equal intervals along the width direction of the jig body 10. The return springs 12a are respectively supported by the lock bolts 12 so as to resiliently return the slide plates 20 forcibly conveyed by the locking levers 11.

4A is a perspective view of the slide plate taken from FIG. 2, and FIG. 4B is a plan view of the slide plate of FIG. 4A.

As shown in Figure 4a and 4b, the slide plate 20 is seated on one side of the plurality of stopper groove 21 formed on the upper surface fixed unit 22 for pressing and fixing the respective level pins 40, and the fixed It is composed of an elastic body disposed on the other side of the stopper groove 21 to elastically support the unit 22.

Here, the stopper groove 21 is formed along the longitudinal direction of the slide plate 20, the fixing unit 22 for pressing the level pin 40 to the inside, and to elastically return the fixing unit 22 The elastic body is configured to be sequentially seated.

At this time, the stopper groove 21 is configured to further include a partition wall 21b protruding inward to prevent the elastic body from being pulled out.

The elastic body is preferably any one selected from the rubber ring 23, the coil spring 33, and the span block, urethane foam, honeycomb, latex block excellent in elastic return force, in the present invention, the rubber ring as an embodiment 23 is interposed.

At this time, the stopper groove 21 is formed with a second through-hole 21a eccentric to one side, the fixing unit 22 is in communication with the second through-hole 21a of the stopper groove 21 in a vertical line. The stopper hole 22a is formed and comprised. In this case, the stopper hole 22a gradually decreases in diameter in a direction opposite to the advancing direction of the slide plate 20. Therefore, as the slide plate 20 is transferred, the fixing unit 22 is conveyed together on the stopper groove 21 to force restraint of the lifting and lowering of the level pin 40 held on the bottom plate 30.

FIG. 5A is a perspective view of the bottom plate taken from FIG. 2, FIG. 5B is a bottom view of the bottom play of FIG. 5A, and FIG. 6 is a front view of the level pin taken from FIG. 2.

5A, 5B and 6, the upper surface of the bottom plate 30 corresponds to the first through hole 10a of the jig body 10 and supports the level pin 40. A plurality of support grooves 31 having a coil spring 33 built therein may be formed, and the lower surface further includes permanent magnets 32 inserted at equally priced prices along the longitudinal direction so as to be fixed to the conductive metal material. It is configured to include.

The bottom plate 30 is inserted into and fixed to the jig main body 10 to support the slide plate 20.

Each of the support grooves 31 formed in the bottom plate 30 has a coil spring 33 for elastically supporting the level pin 40, and the level pin 40 is held thereon.

The level pin 40 is supported by the support groove 31 of the bottom plate 30 to stop the second through hole 21a of the stopper groove 21 of the slide plate 20 and the stopper of the fixing unit 22. Partly protrudes through the hole 22a to the first through hole 10a of the jig body 10.

At this time, the level pin 40 is formed by the first protrusion frame 41 and the second protrusion frame 42 is formed in the center portion, the lower protrusion is formed in the first protrusion frame 41 and the second protrusion formed in the upper portion Te (42).

The first protrusion frame 41 corresponds to the support groove 31 of the bottom plate 30 to guide the lifting and lowering of the level pin 40, and the second protrusion frame 42 is It is spaced apart from the first protrusion frame 41 at a predetermined interval to correspond to the step 13 formed in the jig body 10 to function to limit the rise of the level pin 40.

Hereinafter, the operation of the jig device for fixing a printed circuit board according to the present invention will be described together with the accompanying drawings.

7A is a state diagram used before placing a substrate on a jig device for fixing a printed circuit board according to the present invention, Figure 7b is a state diagram used to put a substrate on a jig device for fixing a printed circuit board according to the present invention, Figure 8 Fig. 7b is an operation diagram showing the operation of the slide plate.

First, as shown in Figure 7a, the jig device before placing the printed circuit board 300, the level pin 40 is fixed to the top of the jig body 10 by the elastic spring inserted into the bottom plate (30). The height part protrudes.

This is because the second protruding frame 42 formed in each of the level pins 40 is in close contact with the step 13 formed in the jig body 10, so that the level pins 40 are partially exposed to the same height. Will be.

7B, when the printed circuit board 300 clamped on the clamp 200 is placed on the jig device, each level pin 40 corresponding to the chip 310 attached to the printed circuit board 300 is a chip. Each of the heights 310 is lowered individually.

In order to fix the level pins 40 in this state, the locking lever 11 of the jig body 10 is rotated. At this time, when the locking lever 11 is rotated, the screw 11c of the locking lever 11 is rotated. Is transported to one side, and the slide plate 20 in close contact with the end of the screw (11c) is forcibly transported to one side. On the other hand, when the locking lever 11 exceeds the operating limit point, the locking lever 11 is maintained as long as the locking lever 11 is not rotated again.

Then, as shown in Figure 8, the fixing unit 22 seated in the stopper groove 21 of the slide plate 20 is moved to the other side so that the stopper hole 22a of the fixing unit 22 of the level pin 40 The side will be press fixed. At this time, the fixing unit 22 is elastically in close contact with the side of the level pin 40 by each rubber ring 23 disposed on the other side.

In this state, after the soldering operation of the printed circuit board 300, the locking lever 11 is returned to its original position. At this time, the locking lever 11 is restricted by the round bar stopper 11d to prevent loosening. .

Accordingly, the slide plate 20 is moved to the other side by the elastic return force of the return spring 12a compressed inside the jig body 10, and at the same time, the slide plate 20 is pressed against and fixed to the level pin 40. Fixed unit 22 is also moved to one side by the inertia return force of the rubber ring 23 disposed on the other side.

Then, the level pin 40 is free, without being restrained, and is restored to its original height by the coil spring 33 inserted into the support groove 31 of the bottom plate 30.

According to the jig device for fixing a printed circuit board according to the present invention as described above, it is possible to prevent the bending deformation and the soldering defect of the printed circuit board to more accurately and accurately match the horizontal surface of the printed circuit board during soldering operation of the printed circuit board. There is this.

In addition, it is possible to shorten the work vacancy time to maximize the work efficiency within the same time, and also has the advantage that the maintenance cost is excellent because it is durable and durable.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

Claims (12)

A jig body 10 into which the slide plate 20 is inserted so as to be transferred to the left and right sides; A locking lever 11 connected to the other side of the jig main body 10 to forcibly transfer the slide plate 20, and having a round bar stopper 11d to prevent loosening; A bottom plate 30 inserted into and fixed to the jig body 10 to support the slide plate 20; And It is supported by the upper surface of the bottom plate 30 and partially protrudes from the upper surface of the jig body 10 across the slide plate 20, the rise is limited by the step 13 formed in the jig body 10 And a plurality of level pins 40 fixed by the slide plate 20 which is transported according to the rotation of the locking lever 11. The level pin 40 is spaced apart from the first protruding frame 41 and the first protruding frame 41 to be guided in a shape corresponding to the support groove 31 of the bottom plate 30. And a second protruding frame 42 whose lift is limited by the step 13 formed in the jig body 10 is formed. The jig body 10 has a plurality of first through holes 10a formed in parallel along the longitudinal direction to partially protrude the level pin 40, and elastically supports the slide plate 20 inserted in one side thereof. It consists of a plurality of lock bolts 12 and the return spring (12a) is inserted and fixed opposite to the locking lever 11, The locking lever 11 is moved to the left / right in the rotational direction to the lever 11a, the screw 11c coupled to the lever 11a, and the screw ( 11c) jig device for fixing the printed circuit board, characterized in that consisting of a flange (11b) coupled to the other side of the jig main body (10) for fixing the rod stopper (11d). delete delete delete The method of claim 1, The slide plate 20 is seated on one side of the plurality of stopper grooves 21 formed on the upper surface and the fixing unit 22 for pressing and fixing each of the level pins 40, to support the fixing unit 22 elastically Jig device for fixing a printed circuit board, characterized in that further comprises an elastic body disposed on the other side of the stopper groove 21 for The method of claim 5, The fixing unit 22 is a jig device for fixing a printed circuit board, characterized in that the stopper hole (22a) of the form is gradually reduced in the direction opposite to the traveling direction of the slide plate (20). The method of claim 5, The stopper groove 21 is a printed circuit characterized in that it further comprises a second through-hole 21a eccentric to one side to accommodate the elastic body and to be in communication with the stopper hole (22a) of the fixing unit 22 Jig device for fixing the board. The method according to claim 5 or 7, The elastic body is a jig device for fixing a printed circuit board, characterized in that any one selected from the rubber ring (23), the coil spring 33, and the span block, urethane foam, honeycomb, latex block excellent in elastic return force. The method according to claim 5 or 7, The stopper groove 21 is a jig device for fixing a printed circuit board further comprises a partition wall (21b) protruding in order to prevent the elastic body from tipping. The method of claim 1, The upper surface of the bottom plate 30 corresponds to the first through hole 10a of the jig body 10 and a plurality of support grooves in which coil springs 33 are built so as to support the level pin 40. A printed circuit board fixing jig, characterized in that (31) is formed, and further comprising a permanent magnet (32) inserted at an equally divided price along the longitudinal direction so as to be fixed to the conductive metal material on the lower surface thereof. Device. delete delete