KR200407644Y1 - Jig Assembly for Printed Circuit Board - Google Patents

Abstract

The present invention relates to a jig assembly for a printed circuit board, and in particular, when the printed circuit board is detached from the jig assembly, it is accommodated in an elastic clip receiving groove to elastically fix the printed circuit board so as to be movable in the longitudinal direction of the printed circuit board. The present invention relates to a jig assembly for a printed circuit board in which the installed elastic clip does not detach from the printed circuit board, and also the productivity is improved by preventing the elastic clip from being separated from the jig assembly by the stopper seated on the jig assembly.

The jig assembly for a printed circuit board according to the present invention includes a pallet 210, a fixing pin 220, an elastic clip 230, and an elastic member 240 for mounting the printed circuit board 100 on the top. In the jig assembly for a printed circuit board, the elastic clip receiving groove 213 is an elastic clip receiving portion (213a) to accommodate the elastic clip 230 from the outside, and the elastic clip accommodated in the elastic clip receiving portion The width of the bottom portion is formed to be larger than the width of the upper portion in order to prevent the separation, the elastic clip guide 213b for guiding the conveyance in the longitudinal direction, and the elastic clip guide portion is extended and the printed circuit board 100 is seated A printed circuit board fixing part 213c formed to a predetermined portion of the groove 211 is formed, and the elastic clip 230 has a lower surface wider than an upper portion so as not to be separated from the elastic clip guide part 213b. Feed in the longitudinal direction along the portion 213b It is formed so that, the elastic member 240 is seated in parallel with the longitudinal direction of the elastic clip between the elastic clip receiving groove 213 and the elastic clip 230, one end in a predetermined length and depth in the elastic clip receiving groove. It is supported by the formed first elastic member receiving groove (213d), the other end is supported by the second elastic member receiving groove 234 formed in a predetermined length and depth in the longitudinal direction on the bottom of the elastic clip, the elastic member 240 The elastic clip 230 to be transported by the) is not to be separated from the printed circuit board 100 by a predetermined length or more so as to support the rear side of the elastic clip 230 so that the elastic clip is not separated from the elastic clip accommodation groove 213. It characterized in that it further comprises a stopper 250 seated on the pallet (210).

Printed Circuit Boards, Elastic Clips, Jig Assemblies, Stoppers

Description

Jig Assembly for Printed Circuit Board {PCB MOUNTED JIG ASSEMBLY}

1 is a state diagram using a plurality of printed circuit board mounted on a jig assembly for a printed circuit board according to an embodiment of the present invention

Figure 2 is a detailed view of the P portion of Figure 1 showing a state in which the elastic clip of the jig assembly for a printed circuit board according to an embodiment of the present invention assembled;

Figure 3 is an exploded perspective view showing a state in which the elastic clip according to the present invention is assembled to the pallet

Figure 4 is a bottom view of the elastic clip according to the present invention

FIG. 5 is a cross-sectional view taken along the line A-A of FIG.

FIG. 6 is a cross-sectional view taken along line B-B of FIG.

FIG. 7 is a cross-sectional view taken along the line C-C of FIG.

8 is a plan view showing another embodiment of the present invention

<Description of Symbols for Main Parts of Drawings>

100 Printed Circuit Board 110 Pinhole

200 Jig Assembly for Printed Circuit Board 210 Pallet

211 Groove 212 Through Hole

213 Elastic Clip Receiving Groove 213a Elastic Clip Receiving Section

213b Elastic Clip Receiving Unit 213c Printed Circuit Board

213d 1st elastic member receiving groove 220 fixing pin

230 Elastic Clips 231 Slide Section

213a slope 232 ends

233 Board fixing protrusions 234 Second elastic member receiving groove

240 Elastic Member 250 Stopper

The present invention relates to a jig assembly for a printed circuit board which prevents bending deformation and soldering defects of the printed circuit board when mounting and soldering various chips and components onto the printed circuit board. More specifically, a jig for a printed circuit board is provided. In order to elastically fix the printed circuit board when detached from the assembly, the elastic clip received in the elastic clip receiving groove and installed to be movable in the longitudinal direction of the printed circuit board does not detach from the printed circuit board. The present invention relates to a jig assembly for a printed circuit board, by which a stopper prevents the elastic clip from being separated from the jig assembly, thereby improving productivity.

In general, a printed circuit board (PCB) can be seen as a kind of electronic component device in which wiring and arrangement space required for mounting a predetermined electronic component are printed. Recently, a multilayer board having two or more layers (LAYER) is used.

Mounting and soldering of surface-mounted components to such a printed circuit board is called surface mount technology (SMT).

The SMT device, in particular, the reflow soldering machine, passes through a furnace having a soldering temperature set in a state in which chip components are mounted on a printed circuit board printed with lead on cream. Cream solder refers to a device in which solder is melted by melting.

The reflow soldering machine not only has a very small size of the circuit elements to be worked on, but also works at a high temperature so that the jig for a printed circuit board may be fixed to fix the printed circuit board during soldering to reduce defective products and improve productivity. ) Assembly is used.

The jig assembly for the printed circuit board is also referred to as 'PCB bending jig', 'soldering jig', 'SMT reflow soldering jig', 'PCB pallet', etc., in the present design called 'printing jig assembly for printed circuit board' Shall be.

The jig assembly for a printed circuit board previously applied and registered by the present applicant is disclosed as Utility Model Registration No. 20-0354564. First, a fixing pin installed at a position corresponding to the position of a pinhole formed according to a pattern of a printed circuit board. First, when the pinhole is pressed, it is inserted into the pinhole of the printed circuit board to fix one end of the printed circuit board, and then presses the elastic clip toward the printed circuit board in a direction opposite to the elastic force of the elastic member, and prints on the substrate fixing protrusion. Insert the pinhole of the circuit board and then release the elastic clip. One end of the elastic clip pulls the printed circuit board firmly by the elastic force of the elastic member caught in the elastic clip receiving groove of the pallet. The jig assembly for the circuit board is as large as the conventional surface mount process (SMT) without deforming or dropping the printed circuit board. After the coating to the solder, the circuit elements such as chips and tantalum and higher chip mount, and after releasing the chip is mounted may be soldered through the reflow soldering machine.

However, when the process is completed and the printed circuit board is removed from the jig assembly for the printed circuit board, the pins fixed to the pallet prevent the elastic clip from being separated from the elastic clip receiving groove by the friction between the substrate fixing protrusion and the pinhole. In the case of repetitive work on the printed circuit board, as the pins are separated from the pallet, the elastic clips are also separated, which results in a decrease in productivity.

The present invention is to solve the above drawbacks, by operating the elastic clip installed on the pallet by hand to insert the substrate fixing projection of the elastic clip into the pinhole formed on the printed circuit board to fix the printed circuit board by the appropriate holding force and The elastic clip does not fall out when the printed circuit board is separated and the printed circuit board is removed reliably, so that the labor for installing a separate missing elastic clip in the process of attaching and detaching the printed circuit board during soldering is not necessary, thereby improving productivity during manufacturing. It is an object of the present invention to provide a jig assembly for a printed circuit board.

Another object of the present invention is to provide a jig assembly for a printed circuit board that is configured so that the elastic clip is not separated from the elastic clip receiving groove by the stopper to prevent the elastic clip is easily separated during soldering. There is this.

A jig assembly for a printed circuit board according to the present invention for achieving the above object is a plate-shaped pallet having a plurality of grooves and through holes for mounting a printed circuit board thereon, and a printed circuit mounted on the pallet. A plurality of fixing pins coupled to the through holes to removably fix the substrate, and fitted into elastic clip accommodation grooves formed in an upper portion of the pallet, and movable in the longitudinal direction of the printed circuit board from the elastic clip accommodation grooves. And an elastic member installed to transfer the elastic clip to the printed circuit board by an elastic force in a direction away from the printed circuit board, wherein the elastic clip accommodation groove includes an elastic clip accommodation portion to accommodate the elastic clip from the outside; The width of the bottom portion is formed to be larger than the width of the upper portion in order to prevent the separation of the elastic clip accommodated in the elastic clip receiving portion An elastic clip guide for guiding the transfer in this direction, and a printed circuit board fixing portion extending to the elastic clip guide portion to a predetermined portion of the groove on which the printed circuit board is seated, the elastic clip is the elastic clip guide The lower surface is wider than the upper portion so as not to be separated from the portion so as to be transported in the longitudinal direction along the elastic clip guide portion, and the elastic member is seated parallel to the longitudinal direction of the elastic clip between the elastic clip receiving groove and the elastic clip. One end is supported by the first elastic member accommodation groove formed at a predetermined length and depth in the elastic clip accommodation groove, and the other end is supported by the second elastic member accommodation groove formed at a predetermined length and depth in the longitudinal direction on the bottom of the elastic clip. The elastic clip is transported by the elastic member so that the elastic clip is not separated from the printed circuit board by a predetermined length or more. Should not be separated from the receiving groove the stopper secured to the pallet for supporting from the back of the elastic clip, characterized in that it further comprises.

The elastic clip of the jig assembly for a printed circuit board of the present invention, the one side is seated on the elastic clip receiving portion and the elastic clip guide portion, the slide portion matching the height of the pallet, and the other side of the slide portion is provided with a printed circuit board An end formed to be stepped into the printed circuit board fixing part to have the same height as one side, and a predetermined position on the upper surface of the end includes a substrate fixing protrusion formed to fit into a through hole of the printed circuit board, and an upper portion of the pallet Elongated in the elastic clip receiving groove formed in the upper portion of the pallet longer in the longitudinal direction of the printed circuit board is installed in the, and has an inclined surface formed so as to widen the cross-sectional width of the elastic clip from the upper surface to the lower surface in the width direction of the slide portion It is characterized by.

The substrate fixing protrusion of the jig assembly for a printed circuit board of the present invention is characterized in that the upper portion has a large diameter and the lower portion formed at the end has a reverse taper having a small diameter.

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

1 is a state diagram in which a plurality of printed circuit boards are mounted on a jig assembly for a printed circuit board according to an embodiment of the present invention, and FIG. 2 is an elastic clip of a jig assembly for a printed circuit board according to an embodiment of the present invention. 1 is a detailed view of the portion P of Figure 1 showing the assembled state, Figure 3 is an exploded perspective view showing a state in which the elastic clip according to the present invention is assembled to the pallet, Figure 4 is a bottom view of the elastic clip according to the present invention, FIG. 5 is a sectional view seen from the line AA of FIG. 2, FIG. 6 is a sectional view seen from the line BB of FIG. 2, and FIG. 7 is a sectional view seen from the line CC of FIG.

In FIG. 1, a printed circuit board 100 formed to mount various circuit elements or chips, and a step is formed at a portion where the printed circuit board 100 is seated, are lowered, and the printed circuit board 100 is fixed so as not to be separated. A jig assembly 200 for a printed circuit board according to an embodiment of the present invention having an elastic clip is shown.

An appropriate number of pinholes 110 are formed on the printed circuit board 100 according to the shape of the printed circuit board, and the pinhole 110 is formed on the pallet 210 constituting the jig assembly 200 for the printed circuit board. Through-holes 212 are formed at corresponding positions, and fixing pins 220 are inserted into the through-holes 212, respectively.

The jig assembly for a printed circuit board according to the present invention includes a plate-shaped pallet 210 having a plurality of grooves 211 and through holes 212 for mounting the printed circuit board 100 thereon, and the pallet. A plurality of fixing pins 220 coupled to the through-holes 211 to fix the printed circuit board 100 mounted on the upper portion of the 210 and detachably printed on the upper portion of the pallet 210. An elastic member 230 installed to be movable in the longitudinal direction of the circuit board 100 and an elastic member 240 configured to transfer the elastic clip by elastic force away from the printed circuit board, wherein the elastic member ( 240 is mounted between the elastic clip receiving groove 213 and the elastic clip 230 in parallel with the longitudinal direction of the elastic clip, one end of the first elastic member receiving groove formed of a predetermined length and depth in the elastic clip receiving groove (213d). The other end is long on the bottom of the elastic clip It is supported by the second elastic member accommodating groove 234 formed at a predetermined length to the depth direction. That is, one end of the elastic member 240 is supported by the first resilient groove (213d) to move the elastic clip 230 toward the printed circuit board 100, the other end of the elastic clip 230 It is supported by the second elastic member receiving groove 234 formed in the bottom surface is moved away from the printed circuit board 100, the elastic clip 230 is moved to secure the printed circuit board 100.

Here, the elastic clip 230 transported by the elastic member 240 does not move away from the printed circuit board 100 by a predetermined length or more so that the elastic clip does not leave the elastic clip accommodation groove 213. It includes a stopper 250 seated in the rear elastic clip receiving groove 213. That is, the stopper 250 prevents the elastic clip 230 from easily falling back into the elastic clip accommodation groove 213 into which the elastic clip 230 is fitted. Here, the stopper 250 may be an elastic member such as a snap ring as shown in FIGS. 1 to 3. In addition, the stopper is fixed to one end in the groove 210a formed in the pallet 210 in the form of a pin 251 rather than a snap ring as shown in Figure 8 and the other end is installed in the elastic clip receiving groove 213 elastic clip It goes without saying that 230 can no longer be moved backwards.

In addition, the elastic clip 230 has a wider width than the width of the upper portion of the bottom portion in close contact with the elastic clip receiving groove 213 of the pallet 210. That is, the bottom surface of the elastic clip 230 is wide to prevent the elastic clip 230 from being unnecessarily separated from the pallet when the printed circuit board is separated from the pallet.

In addition, the elastic clip receiving groove 213 is to prevent the separation of the elastic clip receiving portion (213a) and the elastic clip accommodated in the elastic clip receiving portion to accommodate the elastic clip 230 from the outside of the longitudinal direction An elastic clip guide 213b for guiding the transfer, and a printed circuit board fixing part 213c extending to the elastic clip guide and formed to a predetermined portion of the groove 211 on which the printed circuit board 100 is seated. have. In the present embodiment, the elastic clip receiving portion 213a is formed wider than the width of the elastic clip guide portion 213b, but considering the processability of the elastic clip receiving portion 213a and the shape of the stopper is changed. In consideration, it is also preferable to form the same width as the elastic clip guide portion (213b).

Meanwhile, as shown in FIGS. 2 to 4, the elastic clip 230 is seated on the elastic clip accommodation portion 213a and the elastic clip guide portion 213b so that the slide portion 231 matches the height of the pallet. ), And the other side of the slide part 231 has an end portion 232 stepped so as to be fitted to the printed circuit board fixing portion so that the printed circuit board is installed and the same height as one side, and at a predetermined position on the upper surface of the end portion; And a substrate fixing protrusion 233 formed to be inserted into the through hole of the printed circuit board 100 and formed on the pallet longer in the longitudinal direction of the printed circuit board 100 installed on the pallet 210. An inclined surface 231a which is seated in the elastic clip accommodation groove 213 and is formed so that the cross-sectional width of the elastic clip is wider from the upper surface to the lower surface in the width direction of the slide part 231, and the length of the bottom of the elastic clip. In the direction Claim 2 is provided with an elastic member accommodating groove 234 formed in the Zheng Ji and deep.

In addition, the substrate fixing protrusion 233 is formed in an inverted tapered state in which the upper portion has a large diameter and the lower portion formed at the end portion 232 has a small diameter, and the upper portion thereof has a diameter when the printed circuit board 100 is fixed and soldered. When the pulled up from the substrate fixing protrusion 233 of the elastic clip 230, the reverse tapered upper portion becomes a form that presses the printed circuit board 100 in the vector direction from the upper side to the lower side easily. ) Is prevented from escaping.

Referring to the operation of the present invention configured as described above, first pressing the pinhole 110 on the fixing pin 220 installed in the position corresponding to the position of the pinhole 110 formed according to the pattern of the printed circuit board 100, The one end of the printed circuit board 100 is fixed while being inserted into the pinhole 110 of the printed circuit board 100.

Thereafter, the pinhole 110 of the printed circuit board 100 is pressed onto the substrate fixing protrusion 233 while pressing the elastic clip 230 toward the printed circuit board 100 in a direction opposite to the elastic force of the elastic member 240. When the elastic clip 230 is placed thereon, one end of the elastic clip 230 is burnt in the elastic member 240 caught in the first elastic member accommodation groove 213d formed in the elastic clip accommodation groove 213 of the pallet 210. Since the printed circuit board 100 is pulled and securely fixed by the force, the jig assembly 200 for the printed circuit board on which the printed circuit board 100 is mounted is conventionally modified without dropping or dropping of the printed circuit board 100. After coating with a cream solder in the same manner as the surface mount process (SMT), the circuit elements such as chips and tantalum can be high-speed chip mounted, then the release chip is mounted and soldered through a reflow soldering machine.

As described above, according to the present invention, the elastic clip installed on the pallet is operated by hand to insert and fix the substrate fixing protrusion of the elastic clip into the pinhole formed on the printed circuit board, thereby fixing and separating the printed circuit board by an appropriate gripping force, and printing When the circuit board is separated, the elastic clip does not fall out reliably, and thus the soldering process does not require the installation of a separate missing elastic clip in the process of attaching and detaching the printed circuit board, thereby improving productivity during manufacturing.

In addition, the stopper is configured such that the elastic clip is not separated from the elastic clip accommodation groove to the rear, thereby preventing the elastic clip from being easily separated during soldering.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Claims (3)

A plate-shaped pallet 210 having a plurality of grooves 211 and through holes 212 for mounting the printed circuit board 100 thereon, and a printed circuit board mounted on the pallet so as to be detachable. A plurality of fixing pins 220 coupled to the through holes 212 and elastic clip accommodation grooves 213 formed in the upper part of the pallet for fixing, and are inserted in the longitudinal direction of the printed circuit board in the elastic clip accommodation grooves. In the jig assembly for a printed circuit board comprising an elastic clip (230) installed to be movable in the direction, and the elastic member 240 to transfer the elastic clip by an elastic force in a direction away from the printed circuit board, The elastic clip accommodation groove 213 has an elastic clip accommodation portion 213a which can accommodate the elastic clip 230 from the outside, and a width of the bottom portion of the elastic clip accommodation portion to prevent detachment of the elastic clip received by the elastic clip accommodation portion. It is formed larger than the width of the elastic clip guide portion (213b) for guiding the conveyance in the longitudinal direction, the printing formed extending to the elastic clip guide portion to a predetermined portion of the groove 211 on which the printed circuit board 100 is seated A circuit board fixing unit 213c is formed, The elastic clip 230 is formed to be transported in the longitudinal direction along the elastic clip guide 213b so that the lower surface is wider than the upper so as not to be separated from the elastic clip guide 213b, The elastic member 240 is seated parallel to the longitudinal direction of the elastic clip between the elastic clip receiving groove 213 and the elastic clip 230, one end of the first elastic member having a predetermined length and depth in the elastic clip receiving groove It is supported by the receiving groove (213d), the other end is supported by the second elastic member receiving groove 234 formed in a predetermined length and depth in the longitudinal direction on the bottom of the elastic clip, The elastic clip 230, which is transferred by the elastic member 240, does not move away from the printed circuit board 100 by a predetermined length or more, so that the elastic clip is not separated from the elastic clip accommodation groove 213. Jig assembly for a printed circuit board further comprises a stopper (250) seated on the pallet (210) to support from the back of the. The method of claim 1, The elastic clip 230, one side is seated in the elastic clip receiving portion (213a) and the elastic clip guide portion (213b) to match the height of the pallet 231 and the other of the slide portion 231 The side is formed with a stepped end 232 stepped so as to be fitted to the printed circuit board fixing part so that the printed circuit board is the same height as one side, and inserted into the through hole of the printed circuit board 100 at a predetermined position on the upper surface of the end. It includes a substrate fixing protrusion 233 formed to be built, and is seated in the elastic clip receiving groove 213 formed in the upper portion of the pallet longer in the longitudinal direction of the printed circuit board 100 is installed on the upper portion of the pallet 210, Jig assembly for a printed circuit board characterized in that it has an inclined surface (231a) formed so that the width of the cross-sectional area of the elastic clip from the upper surface to the lower surface in the width direction of the slide portion (231). The method of claim 2, The substrate fixing protrusion 233 is a jig assembly for a printed circuit board, characterized in that the upper portion has a large diameter and the lower portion formed at the end portion 232 has a small diameter inverse taper.

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