KR200356370Y1 - Jig assembly for pcb - Google Patents

Abstract

The present invention relates to a jig assembly for a printed circuit board, and more particularly, to a jig assembly for a printed circuit board to facilitate mounting the printed circuit board to be soldered to the jig assembly for a printed circuit board before the soldering process. will be.

In the jig assembly for a printed circuit board of the present invention, a plurality of first through holes 12 penetrate between the upper and outer surfaces of the groove 11 on which the printed circuit board is seated. Pallet 10 formed with a plurality of through-holes 13 at regular intervals, and a close contact portion 31 having a through-hole 31a formed at the center thereof so as to be fastened by bolts 20 to the first through-hole and seated in a groove. It includes an elastic clip (50) rotatably fastened to the pallet by a susceptor (30) having a lifting prevention portion (32) fixed at one end thereof and a bolt (40) fitted in the second through hole, The pallet is formed with a rotation angle guide groove 14 forming a predetermined angle around the second through hole, and one side of the elastic clip protrudes 55 away from the central axis and a predetermined length so as to fit into the rotation angle guide groove. It is characterized by.

Description

Jig assembly for printed circuit board {JIG ASSEMBLY FOR PCB}

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, and more specifically, to perform a soldering process. The present invention relates to a jig assembly for a printed circuit board, to facilitate mounting of a printed circuit board to be soldered to the jig assembly for a printed circuit board.

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 is not only very small in size of the circuit elements to be worked, but also works at a high temperature, so that the jig for the printed circuit board is 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.

In the conventional jig assembly for a printed circuit board, as shown in FIG. 6, a groove 11 of a predetermined shape is formed to seat a printed circuit board (not shown), and a plurality of grooves are formed between the upper and outer surfaces of the groove 11. A first through hole 12 is formed therethrough, and a plurality of second through holes 13 having a larger diameter than the first through hole 12 are formed at regular intervals on left and right sides and lower portions of the groove 11. 10, a susclip 30 fastened to the first through hole 12 with a bolt 20 and fixed to prevent the printed circuit board seated in the groove 11 from being lifted upwards; 2 is elastically configured to selectively restrain the printed circuit board seated in the groove 11 when it is pivotally fastened to the pallet 10 by a bolt 40 fitted from the lower part of the through hole 13 to the upper part. And a clip 50.

Here, the susclip 30 will be described with reference to FIG. 5 for explaining the present invention. The contact portion 31 has a through hole 31a formed at the center thereof, and is fixed upward at one end of the contact portion 31. The lifting prevention portion 32 bent at an angle is included.

And the elastic clip 50 will be described with reference to Figure 6 and Figures 3 and 4 illustrating the subject innovation, the lower portion has a cam portion (51a) protruding in one direction, the upper portion of the handle portion (easy to rotate) 51b), a through hole 51c is formed in the center thereof, a head seating groove 51d is formed in the lower part of the through hole 51c, and a clip member 51 having a spring seating groove 51e formed therein. And a nut member 52 fitted into the through hole 51c and seating the head 52a in the head seating groove 51d, and seated in the spring seating groove 51e. A compression spring 53 and a bolt 54 having a head portion 54a to be coupled to the female screw 52b formed at the center of the nut member 52 and to press the compression spring 53.

Therefore, while inserting the printed circuit board into the groove 11 of the pallet 10, the end is seated in the groove 11 while being pushed so that one end is in close contact by the lifting prevention portion 32 of the susclip 30, and then the elastic The cam 50 is rotated to support one end of the printed circuit board by rotating the clip 50. At this time, the compression spring 53 prevents the printed circuit board from rising upward with an elastic force.

However, the susclip 30 as described above is inconvenient in use to rotate, and the elastic clip 50 is continuously rotated on the upper surface of the pallet 10, so the elastic clip 50 is accurate The case where the pallet 10 cannot be fixed also arises.

An object of the present invention is to solve the above-mentioned defects, more specifically, the elastic clip is rotated only in the range of 90 degrees to mount the printed circuit board to be soldered before performing the soldering process to the jig assembly for a printed circuit board It is to provide a jig assembly for a printed circuit board made easy.

Another object of the present invention is to provide a jig assembly for a printed circuit board, which is capable of accurately and reliably fixing the printed circuit board since rotation of the end of the susclip is inserted into the pallet.

1 is a perspective view showing a jig assembly for a printed circuit board according to an embodiment of the present invention

Figure 2 is a perspective view showing an elastic clip of the jig assembly for a printed circuit board according to an embodiment of the present invention

Figure 3 is a perspective view of the elastic clip of Figure 2 turned upside down

4 is a longitudinal cross-sectional view of FIG.

5 is a perspective view showing a susclip of a jig assembly for a printed circuit board according to an embodiment of the present invention;

Figure 6 is a perspective view showing a jig assembly for a printed circuit board according to the prior art

<Description of Symbols for Main Parts of Drawings>

10 pallets 11 home

12 First Through Hole 13 Second Through Hole

14 Turning angle guide groove 20 bolt

30 Suspension 31 Tight

31a through hole 32 lift-out

40 bolts and 50 elastic clips

55 turning

The jig assembly for a printed circuit board of the present invention for achieving the above object, a groove of a predetermined form is formed so that the printed circuit board is seated, a plurality of first through holes are formed between the top and the outer surface of the groove. And a pallet formed at a plurality of second through-holes at regular intervals on the left and right sides and the bottom of the groove, and a bolt fastened to the first through-hole to prevent the printed circuit board seated in the groove from being lifted upward. It is rotatably fastened to the pallet by a suspending member which is provided with a lifting prevention portion bent at a predetermined angle upwards from one end of the contact portion where the through hole is formed, and a bolt that is fitted from the lower portion of the second through hole to the upper portion. It includes an elastic clip to selectively restrain the printed circuit board seated in the groove when rotated, the pallet has a second through hole A rotation angle guide groove forming a predetermined angle is formed around, and one surface of the elastic clip which rotates in close contact with the upper surface of the pallet is formed with a protrusion of a predetermined length parallel to the axial direction at a predetermined length away from the central axis. When the projection is inserted into the rotation angle guide groove so that the elastic clip is rotated toward the groove in such a state that the elastic clip is not positioned in the groove, only a predetermined angle is rotated so that the elastic clip restrains the upper portion of the printed circuit board inserted into the groove. It is characterized by.

In the jig assembly for a printed circuit board according to the present invention, the pallet has a straight slot formed at the rear of each first through hole, and the sus clip is inserted into the respective slots on the opposite side of the close contact portion where the lifting prevention portion is formed. It characterized in that the anti-rotation portion is formed to be bent.

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

1 is a perspective view showing a jig assembly for a printed circuit board according to an embodiment of the present invention, Figure 2 is a perspective view showing an elastic clip of a jig assembly for a printed circuit board according to an embodiment of the present invention, Figure 3 2 is a perspective view of the elastic clip of FIG. 2 upside down, FIG. 4 is a longitudinal cross-sectional view of FIG. 2, and FIG. 5 is a perspective view illustrating a suspclip of a jig assembly for a printed circuit board according to an embodiment of the present invention. The same reference numerals are given to the same parts as those in FIG. 6 to be described, and description thereof will be omitted.

The present invention, the pallet 10, the susclip 30 is fastened to one side of the pallet with the bolt 20, and the bolt 40 is fastened to the side surface of the pallet is not installed, the groove of the pallet It consists of an elastic clip 50 to restrain the printed circuit board (not shown) accommodated in (11).

A predetermined angle around the second through hole 13 is formed in the pallet 10. In this embodiment, a rotation angle guide groove 14 is formed to form 90 degrees, and the clip member 51 of the elastic clip 50 is formed. The projection 55 of a predetermined length parallel to the axial direction is characterized in that it is fitted into the rotation angle guide groove (14).

Here, the pallet 10 has a groove 11 having a predetermined shape so that a printed circuit board is seated on one surface thereof, and a plurality of first through holes 12 are formed between an upper side and an outer side of one side of the groove 11. A plurality of second through-holes 13 having a diameter larger than the first through-holes 12 are formed at regular intervals in the left and right sides and lower portions of the grooves 11, as well as in the pallet 10. Predetermined angle around the second through hole 13 In this embodiment is formed a rotation angle guide groove 14 to form a 90 degrees, the rotation angle guide groove 14 is preferably an arc shape as shown It may be formed as a polygonal hole.

In addition, the susclip 30 is fastened to the first through hole 12 by a bolt 20 and is fixed to prevent the printed circuit board seated in the groove 11 from being lifted upward. 30 is a close contact portion 31 is formed with a through hole 31a in the center as shown in Figure 5, and the lifting prevention portion 32 bent at a certain angle in the upward direction at one end of the contact portion 31 is It is provided. On the other hand, the other end of the contact portion 31, that is, the opposite side formed with the lifting prevention portion 32, a plurality of slots 15 formed between the first through-hole 12 formed in the pallet 10 and the outer surface It is characterized in that the rotation preventing portion 33 is fitted to the bent. The slot 15 is formed in a straight shape in this embodiment.

In addition, the elastic clip 50 is rotatably fastened to the pallet 10 by a bolt 40 fitted from the lower portion of the second through hole 13 to the upper portion of the elastic clip 50 to be seated in the groove 11. Selectively restrain the circuit board. And the elastic clip 50 as shown in Figures 1 to 4, the lower portion has a cam portion 51a protruding in one direction, the upper portion has a handle portion 51b to facilitate rotation, in the center A through hole 51c is formed, a head seating groove 51d is formed in the lower part of the through hole 51c, a clip member 51 having a spring seating groove 51e formed therein, and the through hole 51c. A nut member 52 inserted into the head seating groove 51d and seated in the spring seating groove 51e and fitted into the nut member 52; A fastening member having a head portion 54a to be fastened to the female screw 52b formed at the center of the nut member 52 and to press the compression spring 53, and includes, for example, a bolt 54. The rotation angle guide groove 14 is parallel to the axial direction on the bottom surface of the clip member 51 in which the groove 51d is formed. Projections 55 having a predetermined diameter and length to be seated on the provided is provided, the shape is circular in the present embodiment, but not necessarily circular, if any can be guided by being inserted into the rotation angle guide groove (14) Also, a polygonal column may be used. Here, the compression spring is an elastic member that gives elasticity, such as urethane can be used alternatively.

Therefore, the projection 55 (circular projection) is rotated in a state seated in the rotation angle guide groove 14, so that it does not rotate unnecessarily many angles, it is easy to use, and the slot 15 of the pallet 10 Since the anti-rotation part 33 of the susceptor 30 is inserted into the recess clip, the suspension 30 is not rotated in the process of inserting and disassembling the printed circuit board into the groove 11, thereby fixing the printed circuit board. It becomes easy.

Of course, while inserting the printed circuit board into the groove 11 of the pallet (10) while seated in the groove 11 while being pushed so that one end is in close contact by the lifting preventing portion 32 of the susclip (30), and then the elastic The cam 50 is rotated by about 90 degrees in one direction so that the cam portion 51a supports one end of the printed circuit board. At this time, the elastic member (compression spring) 53 prevents the printed circuit board from rising upward with an elastic force.

As described above, according to the present invention, the elastic clip is rotated only within a certain angle range, so that the printed circuit board to be soldered is easily mounted on the jig assembly for the printed circuit board before the soldering process is performed.

In addition, according to the present invention, since the end of the susclip is inserted into the pallet, the rotation is not performed, and thus the printed circuit board can be accurately and reliably fixed.

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 (2)

A groove 11 of a predetermined shape is formed to seat a printed circuit board, and a plurality of first through holes 12 are formed between an upper side and an outer side surface of the groove, and second through holes on the left and right sides and the bottom of the groove. Pallet 10 formed of a plurality of (13) at regular intervals and a through hole in the center to prevent the printed circuit board which is fastened to the groove by being fastened by bolts 20 to the first through hole ( 31a) is provided with a lifting prevention portion 32 bent at a predetermined angle upwards at one end of the close contact portion 31 formed therein and fixed to the upper clip from the lower portion of the lower through the second through hole In the jig assembly for a printed circuit board comprising a resilient clip (50) to restrain the printed circuit board seated in the groove when it is pivotally fastened to the pallet by the bolt 40, The pallet is formed with a rotation angle guide groove 14 to form a predetermined angle around the second through hole, One surface of the elastic clip which rotates in close contact with the upper surface of the pallet is formed with a protrusion 55 protruding away from the central axis a certain length, When the projection is inserted into the rotation angle guide groove so that the elastic clip is rotated toward the groove in such a state that the elastic clip is not located in the groove, only a predetermined angle is rotated so that the elastic clip restrains the upper portion of the printed circuit board inserted into the groove. Jig assembly for a printed circuit board, characterized in that. The method of claim 1, The pallet has a slot formed between each of the first through holes and the outer surface, The suspension jig assembly for a printed circuit board, characterized in that the anti-rotation portion (33) is bent to fit in the respective slots on the opposite side of the contact portion formed with the lifting prevention portion.