JPS61244441A - Printed circuit board working machine - Google Patents

Abstract

PURPOSE:To improve the operating rate of a working apparatus by arranging the loading and unloading apparatuses for a printed circuit board and installing a means for transferring the circuit board between the both apparatuses and a waiting apparatus for the transfer from the transport position to the waiting position, onto a printed circuit board working machine. CONSTITUTION:A printed circuit board working machine is equipped with a working apparatus 1 for working a printed circuit board 10, loading and unloading apparatus for feeding the printed circuit board 10 into the working apparatus 1, and a transport means 3 for transferring the printed circuit board 10 between the working apparatus 1 and the loading and unloading apparatus. Further, said working machine is equipped with a waiting apparatus 4 which supports the printed circuit board 10 at the position opposed to the working means 1 and positions the printed circuit board 10 to the working position for the feed and discharge from the working apparatus 1 and the waiting position protected from the hindrance for the feeding and discharging works.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a printed circuit board processing machine that automatically and continuously processes printed circuit boards for electronic products.

[Background of the invention]

A printed circuit board processing machine for drilling holes in a printed circuit board is generally equipped with a processing device, a loader device that supplies the printed circuit board as a workpiece to the processing device, and an unloader device that takes out the processed printed circuit board, and further includes an appropriate machine. It is constructed by adding a conveyance means.

A printed circuit board processing machine with such a configuration, or a simplified configuration in which the processing device and the loader/unloader device are installed side by side and adjacent to each other, and a conveying means that holds the printed circuit board and reciprocates between the two devices is attached. Printed circuit board processing machines using this technology have also been put into practical use.

In a processing machine equipped with a loader/unloader device, when replacing a printed circuit board, the processed printed circuit board is taken out from the processing device, transported to the loader/unloader device, stored in the board cartridge of the loader/unloader device, and then unused. Since the printed circuit board to be processed is taken out from the board cartridge, conveyed to the processing device, and set, it takes a long time to replace it. Furthermore, in order to shorten the replacement time, it is necessary to increase the conveyance speed, but in practice, there is a limit to the conveyance speed of printed circuit boards, and the waiting time of processing equipment increases. Furthermore, processing equipment generally has a plurality of spindles and is adapted to simultaneously process a plurality of printed circuit boards. Therefore, in order to shorten the time required to replace printed circuit boards, it is necessary to simultaneously transport multiple printed circuit boards between the loader/unloader device and the processing device, and the loader/unloader device and the transfer device are It is necessary to provide the same number of substrate cartridges and transport members as the number of substrate cartridges and transport members, which has the disadvantage of increasing the size of the device.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a highly efficient printed circuit board processing machine that requires a relatively small installation area and shortens the time required to replace printed circuit boards.

[Summary of the invention]

In order to achieve the above object, the printed circuit board processing machine of the present invention includes a loader/unloader device having both a printed circuit board loader function and an unloader function installed side by side in the processing device,
A conveying means is provided that holds printed circuit boards as workpieces one by one and reciprocates both of the above devices, and the printed circuit board is moved from a conveying position to a standby position at a position facing the processing device on a conveying path of this conveying means. It is characterized by being provided with a standby device for movement.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of the present invention, in which a printed circuit board processing machine
A processing device 1 for processing 0, a loader/unloader device 2 for supplying the printed circuit board 10 to the processing device 1, and a printed circuit board 10 is transported between the processing device 1 and the loader/unloader device 2. The transport means 3 supports the printed circuit board 10 at a position facing the processing means 1, and has a working position for supplying and discharging the printed circuit board 10 to the processing apparatus 1, and a standby position that does not interfere with the supplying and discharging operations. A standby device 4 for positioning is provided.

The processing device 1 is supported by a bed 11, as shown in FIG. Each bed 11 has a bearing 1.
A guide pawl 13 is supported at a predetermined interval via 2. Further, a feed screw 14 disposed between these guide pavers 13 is rotationally driven by a motor 15 supported by the bed 11. A table 18Tri, in which a sleeve 16 slidably fitted to the guide pawl 13 and a nut 17 screwed to the sand feeding screw 14 are fixed together, is moved by the operation of the motor 15. This table 18
A mounting table 19 on which the printed circuit board 10 is placed is arranged above. A pair of guide pins 22 are supported by a column 20 fixed to the bed 11 via bearings 21 at a predetermined interval. Further, a feed screw 24 disposed between these guide pavers 22 is rotationally driven by a Tanabata 25 supported by the column 20. A saddle 28, in which a sleeve 26 that slidably fits into the guide pad 22 and a nut 27 that engages with the feed screw 24 are fixed together, is moved by the operation of the motor 25. A pair of guide pavers 30 are supported by the saddle 28 via bearings 29, respectively. A feed screw 31 is rotatably supported between these guide pavers 30. This feed screw 31 is rotationally driven by a motor 32 supported at the upper end of the saddle 28.

Three 133 slidably fit Vc1 to the guide pa 30
The spindle head 35, which has a nut 34 screwed onto the feed screw 31 fixed thereto, is moved by the operation of the motor 32. A drill 37 is supported at one end of a spindle 36 rotatably supported by the spindle head 35 via a collet chuck (not shown). spindle 36i
, j: Rotationally driven by a motor (not shown) disposed in the spindle head 35.

The table 18 is moved in the X direction (horizontal direction in the drawing), the saddle 28 is moved in the Y direction (perpendicular to the paper), and the spindle head 35 is moved in two directions (up and down in the drawing). ), the table 18 and saddle 28 are moved to perform positioning in the X-Y directions, and then the spindle head 35 is lowered to perform drilling.

The loader/unloader device 2 is shown in FIG. Rails 41 are disposed on both internal side surfaces of the housing 40 to face each other. A feed screw 43 is rotatably supported by a bearing 42 attached to the side surface of one of the rails 41 . A bevel gear 44 is fixed to one end of the feed screw 43, and meshes with a bevel gear 47 fixed together with a pulley 46 to a shaft 45 rotatably supported by the housing 40. A belt 51 is stretched between the pulley 46 and a pulley 50 fixed to a rotating shaft (not shown) of a motor 49 mounted in the casing 40 via a stand 48. is transmitted to the feed screw 43. A lifter 52, which is in slidable contact with the rail 41, has a nut 54, which is threadedly engaged with the feed screw 43, fixed to one end of the lifter 52 through a bracket 53. The board cartridge 55 has a frame body 5
A wheel 58 is provided on the lower surface of the device 6 via a bearing 57, and a handle 59 is provided on the upper end. A plurality of shelves 60 are provided at predetermined intervals in the frame 56, and the printed circuit boards 10 are accommodated on the shelves 60.

When the feed screw 43 is rotated and the lifter 52 is lowered to the lowest end, the substrate cartridge 55 can move on the lifter 52 with the wheels 58 in contact with the floor. In addition, the lifter 52 is raised,
With the wheels 58 off the floor, the lifter 52 is positioned and the printed circuit board 10 is taken in and out.

A chain 62 is stretched between a pair of sprockets 61 rotatably arranged on the housing 40. A rotating shaft of a motor 63 (see FIG. 4) is coupled to one of the sprockets 61, and the chain 62 is driven by the operation of the motor 63. The chain 62 has a holding means 5 that grips the printed circuit board 10 via a support member 65 that is connected to the chain 62 and protrudes above the plates 64 from between the plates 64 arranged above the chain 62. It is installed. This holding means 5 is shown in FIG. A base 66 is fixed to the support member 65. An upper claw 68 and a lower claw 69 are rotatably supported on a pair of shafts 67 erected on the base 66 at a predetermined interval, and are hung between pins 69 erected respectively. It is biased in the closing direction by a tabular spring 71. Said winter melon 68
．． 69, a row 273 is rotatably supported via a shaft 72, respectively. A rod 75Vcu of a cylinder 74 supported at one end of the base 66 is coupled to a cam 76, and the cam 76 enters between the rollers 73. By moving this cam 76, the upper claw 6
8. Open and close the lower claw 69ρ. The upper claw 68 and the lower claw 69
A soft chip 77 is attached to the holding portion of the printed circuit board 10 .

The conveyance means 4 is shown in FIGS. 1 and 2.

A rack 8 is attached to the side surface of the guide rail 81 fixed to the side surface of the casing 40 and the casing 80 juxtaposed to the casing 40.
2 is fixed. A plurality of rollers 83t in contact with the upper and lower surfaces of the guide rail 81 - a slider 84 VC rotatably supported supports a motor 85, and a pinion 86 fixed to its rotating shaft meshes with the rack 82. Cylinder 8 fixed to the top of the slider 84
A block 88 is connected to the rod 70, and a cylinder 8
It is raised and lowered by the operation of 7. A cylinder 89 is supported on the block 88, and a holding means 90 is provided at one end of the cylinder 89. This holding means 90 has the same structure as the holding means 5, so detailed explanation will be omitted.

The standby device 4, as shown in FIGS. 1 and 2,
It is arranged on the housing 80. A base 93 is fixed to a rod 92 of a cylinder 91 arranged inside the housing 80 . At both ends of the base 93 in the conveyance direction of the printed circuit board 10, U-shaped coupling members 94 are erected with their openings facing the aforementioned conveyance means 3 side, and a base 95 is supported on the U-shaped coupling members 94. There is. A guide pawl 96 is erected on the lower surface of the base 93, and is slidably fitted into a guide 97 erected on the housing 8o. the base 93,
95 each has multiple pairs of sprockets) 98.99
are rotatably supported, and a chain 100 is wrapped around each. Each chain 100 has a fourth
Holding means 101.10 of the same construction as the holding means 5 shown in the figure
2 is installed.

In the above configuration, after the substrate cartridge 55 is mounted on the loader/unloader device 2 and the stopper 52 is raised and positioned, the motor 63 is operated and the holding means 5
(board car) to IJ Tsuji 55. At the end of the movement, the cylinder 74 is operated, the upper claw 68 and the lower claw 69 are closed to hold the printed circuit board 10, and then the motor 63 is reversed and the printed circuit board 10 is pulled out from the circuit board cartridge 55 onto the plate 64. At this time, if the holding means 90 of the conveying means 3 is arranged to face the printed circuit board 10 and the upper claw 68 and lower claw 69 are opened, the printed circuit board 1
0 is drawn in between. When the upper claws 68 and lower claws 69 of the holding means 90 are closed and the upper claws 68 and lower claws 69 of the holding means 5 are opened, the printed circuit board 10 is transferred from the loader/unloader device 2 to the transport means 3. When the holding means 5 is further retreated and the upper claw 6B comes off from above the printed circuit board 10, the cylinder 87 of the conveyance means 3 is activated to raise the block 88 and float the printed circuit board 10 from the plate 64. In this state, the motor 85 is operated, the pinion 86 is rotated, and the printed circuit board 10 is moved to the standby device 4. When the printed circuit board 10 reaches a predetermined position in the standby device 4, the motor 85 stops and the cylinder 8
7 is activated to lower the block 88 and place the printed circuit board 10 on the base 93. Then, the cylinder 74 of the holding means 90 is actuated, the upper claw 68 and the lower claw 69 open, and the printed circuit board 10 is released. The cylinder 89 is then actuated to retract the holding means 90 from the printed circuit board 10. In this way, when the required number of printed circuit boards 10 are fed into the standby device 4, the holding means 101, 102
The motor 63 operates to bring the d portion of the chip 77 of the lower claw 69 into contact with the end of the printed circuit board 10, and push the printed circuit board 10 from the base 93 onto the table 18.

The table 18 that has received the printed circuit board 10 moves to a predetermined position, positions the printed circuit board 10, and processes the printed circuit board 10 with the processing device 1. While the printed circuit board 10 is being processed by the processing device 1, the printed circuit board 10 to be processed next is transported from the board cartridge 55 onto the base 93. The required number of printed circuit boards 10 are
When the base 9 is supplied onto the base 3, the standby device 4 operates the cylinder 91, lowers the base 93 and the base 95, and stands by. When the processing of the printed circuit board 10 by the processing device 1 is completed, the table 18 moves to a position close to the base 95 of the standby means 4 and stops. The motor 63 of the holding means 102 is activated to move the upper claw 68 and the lower claw 69 to a position where the printed circuit board 10 can be held. When the cylinder 74 operates to hold the printed circuit board 10, the motor 63 operates to retract the holding means 102 and hold the printed circuit board 10.
Pull it out from the table 18 onto the base 95. When the printed circuit board 10 reaches a predetermined position on the base 95, the motor 63 stops, the cylinder 74 operates to release the printed circuit board 10, and then the motor 63 operates again to move the holding means 5 backward. At the same time, the cylinder 9 of the standby means 4
1 operates to raise the base 93.95. Then, the motor 63 of the holding means 101 is activated to send the printed circuit board 10 on the base 93 to the table 18. When the holding means 101 returns, the cylinder 91 operates and the base 9
Lower 3.95.

The cylinder 89 of the conveying means 3 is operated to move the holding means 90 toward the printed circuit board 10 on the base 95, and the cylinder 74 is operated to hold the printed circuit board 10. Cylinder 87 is actuated to raise block 88,
When the printed circuit board 10 is lifted from the base 95, the motor 85 is activated to move the printed circuit board 10 to the plate 64. When the printed circuit board 10 reached a predetermined position on the base 64 and stopped, the cylinder 87 was operated to place the printed circuit board 10 on the base 64, and the cylinder 74 was operated to open the upper claw 68 and lower claw 69. Thereafter, the cylinder 89 is actuated to retract the holding means 90. Then,
The motor 63 of the holding means 5 is activated to push the printed circuit board 10 with the chip 77 of the lower claw 69, pushing the printed circuit board 10 from the plate 64 onto the shelf 60 of the circuit board cartridge 55. At the same time, the transport means 3 moves to the standby device 4 side to pick up the next printed circuit board 10. The board cartridge 55 into which the printed circuit board 10 is inserted is moved by one step on the shelf 60 by the operation of the motor 49. In this way, when all the printed circuit boards 10 on the base 95 are accommodated in the circuit board cartridge 55, the primary printed circuit board 10 is transported from the circuit board cartridge 55 to the base 93 or 95 of the standby device 4.

According to the above embodiment, the printed circuit board 10 can be supplied to and discharged from the processing device 1 in a short time because it is only necessary to move the printed circuit board 10 between the standby device [4] and the table 18. Further, since the printed circuit boards 10 are transported one by one, the transport device can be downsized.

FIG. 5 shows an example of the arrangement of the printed circuit board processing machine of the present invention, and the processing equipment [1 is provided with four spindle heads 35. In addition, the loader/unloader device 2 includes 4
A base board cartridge 55 is arranged.

FIG. 6 shows another example of the arrangement of the printed circuit board processing machine of the present invention, and is an example in which three processing devices 14C and one loader/unloader device 2 are attached.

In either case, only one conveying means 3 is required. Further, the number of substrate cartridges 55 may be one.

As mentioned above, when adding the processing device 1, the processing device 1
What is necessary is to add the standby device 4 and extend the guide rail 81.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to shorten the time for replacing printed circuit boards and improve the operating rate of processing equipment. Further, the conveying device can be downsized and supplied at low cost. Furthermore, there are effects such as easy expansion of processing equipment.

[Brief explanation of drawings]

FIG. 1 is a side view of a printed circuit board processing machine showing an embodiment of the present invention, FIG. 2 is a side view showing the operation of the standby device in FIG. 1, and FIG. 3 is a side view of the loader and unloader device. 4 is a side view of the holding means, FIG. 5 is a plan view showing the arrangement of the printed circuit board processing machine of the present invention, and FIG. 6 is a side view of the holding means.
FIG. 7 is a plan view showing another arrangement of the printed circuit board processing machine. DESCRIPTION OF SYMBOLS 1... Processing device, 2... Loader, unloader device, 3... Conveyance means, 4... Standby device, 5
...Holding means. 19, Figure 2 Figure 6 Procedures Amendment Book Showa 6 August 28th

Claims (1)

[Claims] a printed circuit board processing device; a printed circuit board loader/unloader device that is installed in parallel with the processing device and supplies the printed circuit board to the processing device; and a printed circuit board loader/unloader device that is installed in parallel with the processing device and the loader/unloader device to hold the printed circuit board and that both of the above-mentioned devices A printed circuit board standby device for moving a printed circuit board from a transport position to a standby position is provided at a position facing the processing device on a transport path of the transport means. Printed circuit board processing machine.