KR100371225B1 - Backup Apparatus of Surface Mounting Device - Google Patents

Abstract

The present invention relates to a back-up device of a surface-mounting device, wherein one end is installed on an upper surface of a backup plate of a printed circuit board transfer device, and the other end is adjusted to a constant height when the back-up plate comes into contact with the bottom surface of the printed circuit board. Composed of a backup jig to be assembled with a backup pin is assembled with a backup jig to be fixed to the backup unit coupled to the backup unit so that the backup pin is inserted into the backup unit, a plurality of backup devices installed on the backup plate After contacting the printed circuit board in the state to adjust the height of the backup unit to a certain height, by simply fastening the coupling member using a fixed jig to maintain a constant height of the plurality of backup pins, and height adjustment work time To be able to do it quickly.

Description

Backup Apparatus of Surface Mounting Device

The present invention relates to a backup device for a surface mounter, and more particularly, to a backup device that can easily adjust the height of the backup pin for supporting the printed circuit board transferred from the surface mounter to the component mounting work position.

The configuration of a surface mounter for mounting a component on a printed circuit board transferred to a component mounting working position will be described in more detail with reference to the accompanying drawings. 1 is a perspective view of a conventional surface mounter. As shown, the surface mounter 10 includes a base frame 11, an XY gantry 12, a plurality of module heads 13 and 14, a printed circuit board transfer device 20, and a feeder stage 16. It is composed. The base frame 11 is used to support the overall load of the surface mounter 10, the X-Y gantry 12 is assembled to the plane of the base frame 11.

The XY gantry 12 includes a Y-axis stator frame 12a, a Y-axis permanent magnet 12b, a Y-axis mover 12c, an X-axis stator frame 12d, an X-axis permanent magnet 12e, and an X-axis mover It consists of 12f. When an electric signal is supplied to the plurality of armature coils 12g assembled to the X-axis mover 12f, the thrust is generated between the armature coil 12g and the X-axis permanent magnet 12e to move in the X-axis direction. One module head 13 is moved along the X-axis stator frame 12d in the Y-axis direction.

In order to move the X-axis stator frame 12d in the Y-axis direction, the X-axis stator frame 12d is formed integrally with the Y-axis mover 12c. The Y-axis mover 12c in which the X-axis stator frame 12d is integrally formed is a plurality of armature coils (not shown) assembled inside the Y-axis stator frame 12a and assembled to the Y-axis mover 12c. When the electric signal is supplied, thrust is generated between the electric coil and the Y-axis permanent magnet 12b to move the Y-axis mover 12c to move the first module head 13 in the Y-axis direction.

In order to mount a component on a printed circuit board using the first module head 13 and the second module head 14, the first module head 13 and the second module head 14 first adsorb the component. When components are supplied from the feeder stage 16, the first module head 13 and the second module head 14 are mounted on the printed circuit board 1 after absorbing the components. Referring to the attached printed circuit board 1 (shown in Figure 2) is mounted with the accompanying drawings as follows.

As shown in FIG. 2, the printed circuit board transporting device 20 may include the base frame 21, the first and second guide frames 22, 23, and the first printed circuit board transporting device 20. It consists of a screw 24, a second screw 25, a stopper 26, a third screw 27 and a plurality of backup devices 30. The first guide frame 22 and the second guide frame 23 are assembled on both side surfaces of the base frame 21, and the first screw 24 is disposed between the first guide frame 22 and the second guide frame 23. And the second screw 25 are assembled at a predetermined interval apart. Between the first screw 24 and the second screw 25 is inserted the assembled third screw 27 with the stopper 26 inserted therebetween, and between the first screw 24 and the third screw 27 A backup plate 28 (shown in FIG. 2) is assembled, and a plurality of backup devices 30 are installed on the upper surface of the backup plate 28.

The first screw 24, the second screw 25, and the third screw 27 may be formed on the printed circuit board 1 based on the first guide frame 22 to guide the printed circuit board 1 during transport. It is used to adjust the second guide frame 23 according to the width, the printed circuit board 1 guided and transported by the first guide frame 22 and the second guide frame 23 is attached to the stopper 26. Is stopped at the work position a. The stopper 26 is driven by a cylinder (not shown) to lock and stop the printed circuit board 1 when the printed circuit board 1 is transferred to the working position a.

The backup device 30 is used to support the printed circuit board 1 as well as to stop the printed circuit board 1 at the work position a for mounting the component on the printed circuit board 1. The backup device 30 is installed on the upper surface of the backup plate 28 that is raised or lowered by the cam driving device (not shown) to support the printed circuit board 1 stopped at the working position (a). The backup device 30 supporting the printed circuit board 1 will be described in detail with reference to FIG. 3. As shown in FIG. 3, the backup device 30 is composed of a fixed shaft 31 and a backup shaft 32.

One end of the fixed shaft 31 is fixed to the backup plate 28 as shown in Figure 2 and the other end is assembled one end of the backup shaft 32 inward. The backup shaft 32 is assembled to be inserted into the inside of the fixed shaft 31, one end of the backup shaft 32 and the fixed shaft 31 is screwed to the fixed shaft 31 by the rotation of the backup shaft (32) Is assembled to adjust the height of the backup shaft 32 from. After the height of the backup shaft 32 is adjusted, the backup shaft 32 is fixed to the fixed shaft 31 by the fixing member 31a.

In order to keep the printed circuit board 1 horizontal, the backup shaft 32 is height-adjusted based on the bottom surface of the printed circuit board 1. In order to adjust the height of the backup shaft 32 based on the bottom surface of the printed circuit board 1, one backup device 30 is first installed on the backup plate 28. Thereafter, after transferring the printed circuit board 1 to the working position a, the backup shaft 32 is rotated by rotating the backup shaft 32 on the fixed shaft 31 based on the bottom surface of the transferred printed circuit board 1. Adjust the height.

When the height of one backup shaft 32 is adjusted, the height of the other backup device 30 is adjusted based on the adjusted backup shaft 32. The backup shaft 32 is provided with an adjustment shaft 32a, a backup pin 32b, and a scale plate 32c to adjust the height of the other backup device 30 based on the height-adjusted backup shaft 32. The adjustment shaft 32a is used to adjust the height of the backup pin 32b of the other backup shaft 32 that is not height-adjusted based on the backup shaft 32 whose height is adjusted. The scale plate 32c formed on the outer circumferential surface is used to check the height adjustment amount of the backup pin 32b whose height is adjusted by the rotation of the adjustment shaft 32a.

As described above, when adjusting the height of the backup pin, the height adjustment time of the backup device is lengthened by adjusting the height of one backup device and then adjusting the height of the other backup device based on the height-adjusted backup device. In addition, there is a problem that the accuracy of the height adjustment operation is lowered by adjusting the height by the sense of the worker.

An object of the present invention is a constant height when a plurality of backup devices for supporting a printed circuit board transported to a component mounting working position by a printed circuit board transfer device of the surface mount device in contact with the bottom surface of the printed circuit board while the backup plate is raised After adjusting to provide a backup device that can fix the height of the backup pin using a fixing jig.

1 is a perspective view of a conventional surface mounter,

FIG. 2 is a perspective view of the printed circuit board conveying apparatus shown in FIG. 1; FIG.

3 is a perspective view of the backup unit shown in FIG.

4 is an exploded perspective view of the backup device according to the present invention;

5 is an assembled perspective view of the backup device shown in FIG. 4;

6 is a longitudinal cross-sectional view of the backup apparatus shown in FIG.

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

100: backup device 110: backup unit

111: fixed shaft 112: coupling member

113: backup shaft 114: backup pin

120: fixed jig 121: outer shaft

122: inner shaft 123: adjusting knob

The backup device of the surface mount apparatus of the present invention has one end is installed on the upper surface of the backup plate of the printed circuit board transfer device and the backup pin is adjusted to a constant height when the backup plate is raised on the other end and contacts the bottom surface of the printed circuit board. It is characterized in that it is provided with a fixing jig for fixing the backup pin is coupled to be inserted into the backup unit is assembled into the backup unit and the height is adjusted to the backup unit.

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

4 is an exploded perspective view of the backup device according to the present invention, FIG. 5 is an assembled perspective view of the backup device shown in FIG. 4, and FIG. 6 is a longitudinal cross-sectional view of the backup device shown in FIG. 5. As shown, one end is installed on the upper surface of the backup plate 28 of the printed circuit board transporting device 20 and the backup plate 28 is raised to the other end while being in contact with the bottom surface of the printed circuit board. The backup pin 110 to be adjusted is assembled to the backup unit 110, and fixed to the backup unit 110 is fixed to the backup pin 114 is coupled to be inserted into the inside of the backup unit 110 adjusted to a certain height. It consists of a jig 120.

Referring to the configuration and operation of the present invention in more detail as follows.

The backup apparatus 100 of the present invention is largely composed of a backup unit 110 and a fixing jig 120. The backup unit 110 is installed on the base frame 21 of the transfer device 20 of the printed circuit board to support the printed circuit board 1 transferred to the position where the components are mounted by the printed circuit board transfer device 20. Done. The fixing jig 120 is used to adjust the height of the backup unit 110 supporting the printed circuit board 1. That is, the fixing jig 120 constituting the backup device 100 first reveals that the fixing jig 120 is used for fixing after the height of the backup unit 110 is adjusted.

One end of the backup unit 110 constituting the backup device 100 has a fixed shaft 111 is formed so as to be installed on the upper surface of the backup plate 28 of the printed circuit board transfer device 20, the other end is printed Up and down reciprocation is possible to adjust the height to support the circuit board, the integrally formed backup pin 114 and the backup shaft 113 is inserted through the coupling member 112 inside the coupling member on the outer peripheral surface Thread 111b is formed to be screwed with 112.

The fixing jig 120 is composed of an outer shaft 121 and the inner shaft 122, the engaging piece 121a of the outer shaft 121 of the fixing jig 120 and the engaging piece of the inner shaft 122 ( (Not shown) is coupled to the fixed shaft 111 of the backup unit 110 and the engaging surfaces 111a and 112a of the coupling member 112, respectively, the backup shaft 113 of the backup unit 110 whose height is adjusted. Secure the

The configuration of the backup unit 110 will be described in more detail as follows. The backup unit 110 includes a coupling member 112, a backup shaft 113, and a backup pin 114 that are inserted and installed to be sequentially assembled to the fixed shaft 111 and the fixed shaft 111. The upper outer circumferential surface of the fixed shaft 111 is formed with a plurality of engaging surfaces (111a) to be coupled to the long hole (111c), the thread (111b) and the fixing jig 120. The long hole 111c is a screw thread 111b and a coupling member formed on the fixed shaft 111 in a state where the backup pin 114 is adjusted to a predetermined height to be supported by contacting the bottom surface of the printed circuit board 1. In the process of screwing 112 is formed a plurality of maintaining the constant interval so that the backup shaft 113 is fixed to the fixed shaft 111 by pressing.

The coupling member 112 has a screw thread (not shown) formed therein so as to be screwed with the screw thread 111b formed on the upper outer circumferential surface of the fixed shaft 111, and the upper outer circumferential surface of the coupling member 112 is fixed. When using the fixing jig 120 to firmly fix the backup shaft 113 adjusted to the height of the fixing shaft 111, the engaging surface so that the coupling member 112 and the fixing jig 120 can be combined and rotated. 112a is formed.

In the center of the upper surface of the backup shaft 113, a backup pin 114 having an outer diameter smaller than the backup shaft 113 is formed integrally with the backup shaft 113 to a predetermined length, the long hole formed in the fixed shaft 111 To manage the machining tolerances of the inner diameter of the long hole 111C and the outer diameter of the backup shaft 113 so as to smoothly move up and down when applying more than a predetermined force to the inside of the (111c) or to the lower predetermined portion of the backup shaft 113 A fastening groove (not shown) is formed to have an O-ring 113a.

Referring to the configuration of the fixing jig 120 in more detail as follows.

The fixing jig 120 is composed of an outer shaft 121 and the inner shaft 122, the lower portion of the outer shaft 121 is engaged with the locking surface 111a of the fixed shaft 111, the locking piece ( A plurality of 121a) is formed, and an upper portion thereof has a circular stopper member 121b for preventing rotation of the fixed shaft 111 when the pickup shaft 113 is fixed to the fixed shaft 111. The lower portion of the shaft 122 is formed with a plurality of locking pieces (not shown) that is locked by engaging with a plurality of locking surfaces (112a) formed on the upper portion of the coupling member 112, the upper portion of the coupling member 112 is rotated And an elastic member 122a between the adjustment knob 123 and the control knob 123 and the circular stopper member 121b. The inner shaft 122 is inserted into and installed inside the outer shaft 121, the engaging pieces of the outer shaft 121 and the inner shaft 122, and the fixed shaft 111 of the backup unit 110. And the engaging surfaces 111a and 112a of the coupling member 112, respectively, firmly fix the backup shaft 113 of the backup unit 110 whose height is adjusted.

Referring to the process of adjusting and fixing the height of the backup device 100 of the present invention. First, a plurality of backup units 110 are installed on the upper surface of the backup plate 28 at predetermined positions, and then the printed circuits transferred to the component mounting work position by the transfer device of the printed circuit board 1 of the surface mount apparatus. When the substrate is fixed to the transfer device, and then the backup plate 28 is raised and each backup pin 114 contacts the bottom of the printed circuit board 1 and is simultaneously adjusted to a certain height, the printed circuit board 1 Remove the from the transfer device, while maintaining the state adjusted to a certain height, the plurality of backup unit 110 proceeds in sequence as follows. First, when an operator rotates the coupling member 112 screwed to the fixed shaft 111 by hand to move vertically downward, the coupling member 112 is rotated along the thread 111b and lowered in the vertical direction to fix the shaft. The back shaft 113 is fixed to the fixed shaft 111 so that the backup shaft 113 is not moved to some extent by narrowing the interval between the long holes 111c formed at one end of the 111. Thereafter, the fixing jig 120 is used to fix the engaging surfaces 111a and 112a of the coupling member 112 having a thread (not shown) formed therein and the fixing shaft 111 having the thread 111b formed thereon. Coupling the engaging pieces formed on the outer shaft 121 and the inner shaft 122 of the 120 and screwing the coupling member 112 to the fixed shaft 111 firmly the backup shaft 113 to the fixed shaft 111 To be fixed. One end of the outer shaft 121, the engaging piece (121a) is formed in four directions, the outer side that the engaging piece 121a is engaged with the engaging surface (111a) formed in four directions of the upper outer peripheral surface of the fixed shaft 111 While holding the circular stopper member 121b with one hand while the shaft 121 is inserted to the outside of the backup unit 110, the lock is prevented from being rotated, and with the other hand, one side penetrates into the inner shaft 121 and is coupled. In a state where the fixed shaft 111 is stopped by using the adjusting knob 123 provided on the inner shaft 122 having a locking piece (not shown) coupled to the locking surface 112a formed on the member 112. Rotating only the coupling member 112 to firmly fix the backup shaft 113, the height adjustment operation of the backup unit 110 is finished.

When the height adjusting operation of the backup unit 110 is completed, the fixing jig 120 is removed from the backup device 100 and only the backup unit 110 is installed on the backup plate to perform the original work of the surface mounting apparatus.

The work position of the height fixing operation using the manual operation and the fixing jig 120 is in the state where the backup unit 110 is placed on the upper surface of the backup plate 28 or the backup unit 110 is released from the backup plate 28. Any place can be conveniently used by workers in the state.

As described above, in order to adjust and fix the height of the backup pin provided in the backup unit, the backup plate is raised while a plurality of the backup units are installed on the backup plate. By adjusting the height simply by using a fixed jig to adjust the height of a number of backup parts at the same time, and can perform the work quickly by providing a shortened working time and convenience for the operator.

As described above, the backup device of the present invention automatically adjusts the backup pin while the backup plate is raised while the plurality of backup parts are installed on the backup plate to adjust the height of the backup pin. After adjusting to a certain height, by simply fixing the height by using a fixing jig, the height of a plurality of backup parts can be adjusted at the same time, and the work can be performed quickly, thereby reducing work time and providing convenience to the operator. It works.

Claims (5)

In the backup device of the surface mounting apparatus for supporting the printed circuit board transferred to the component mounting work position, One end thereof is installed on the backup plate, and the outer circumferential surface of the other end is fixed shaft formed with a predetermined locking surface, a screw thread is formed on the inner circumferential surface thereof so as to be screwed to the fixed shaft, and a coupling member having a locking surface formed on the outer peripheral surface and the one end The backup pin inserted into the fixed shaft and formed at the other end is assembled so as to adjust the height by contacting the printed circuit board, and the height of the backup pin is adjusted so that the interval of the long hole formed at one end of the fixed shaft is narrowed. A backup unit comprising a backup shaft which is screwed to the fixed shaft by rotating the coupling member; One side is provided with a locking piece is coupled to the locking surface of the fixed shaft and the outer shaft having a circular stopper member on the other side and one side is penetrated into the inner shaft of the outer shaft is coupled to the locking surface formed on the coupling member is locked Surface mounting is characterized in that it comprises a fixing jig is formed and the control knob is fixed to the other side is composed of an inner shaft for rotating the coupling member to fix the height of the adjustable backup pin fixed to the fixed shaft. Backup device of the device. delete delete According to claim 1, wherein one end of the backup shaft has a backup pin having an outer diameter smaller than the backup shaft integrally formed with the backup shaft in a predetermined length, the upper and lower when a predetermined force is applied to the inside of the long hole formed in the fixed shaft Back-up device of the surface-mounting device, characterized in that the O-ring is installed by forming a fastening groove at the other end of the backup shaft to reciprocate. The method of claim 1, wherein the upper part of the locking surface of the fixed shaft is provided with a plurality of long holes are formed at regular intervals so that the screw thread and the backup shaft to be screwed to the coupling member and fixed to the fixed shaft. Back-up device for surface mount device.