JP2009274190A - Printed board dividing apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printed board dividing apparatus and method, dividing a printed board into a plurality of pieces using a router efficiently in a short period of time. <P>SOLUTION: A plurality of horizontal mobile units 62, 63 equipped with dividing spindles 70, 71 above a board support section 21 for supporting a printed board are installed to be horizontally movable, and a horizontal mobile unit moved by a horizontal drive section and another horizontal mobile unit are connected such that the spacing therebetween is adjusted via a spacing adjustment means 88. The spacing between the spindles is adjusted according to a pitch between dividing positions on the printed board, so that the single printed board is divided simultaneously with the plurality of spindles, thereby dramatically shortening a dividing time. The time required for dividing the printed board is also dramatically shortened by swinging four tools supporting the printed board 90 degrees each on a swinging table 22 to divide approximately the halves of the printed board at two mutually adjacent stop positions B1, B2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a printed circuit board dividing apparatus and method for dividing a printed circuit board into a plurality of pieces, and more particularly to a printed circuit board dividing apparatus and method that can significantly reduce the time required for dividing the printed circuit board.

  When manufacturing a relatively small rigid-type mounting printed circuit board used for a mobile phone or a digital camera, a number of pieces having a required shape are formed in one printed circuit board for the purpose of improving the manufacturing efficiency. Usually, after electronic components are mounted on each piece, the printed circuit board is divided into individual pieces by dividing the printed board into each piece and a scrap material as a discarded board by a substrate dividing device.

  Therefore, the printed circuit board to be divided is formed in advance so that a large number of pieces are surrounded by slit holes, and by cutting the connecting portion formed between the ends of adjacent slit holes, Each piece can be cut out from the printed circuit board. Further, usually, a plurality of pieces having the same shape are arranged at the same pitch interval on one printed circuit board, and a plurality of connecting portions connected to the pieces are also the same for each piece having the same shape. Often arranged at pitch intervals. On the other hand, there are cases where a single printed circuit board is composed of a large number of multiple types of different sizes and shapes. Even in such a printed circuit board, pieces of the same shape are arranged at the same pitch interval. In addition, the connecting portions are often arranged at the same pitch interval for each piece having the same shape. Furthermore, when the individual pieces and the connecting portions are formed on the printed circuit board, the arrangement pitch interval of the printed circuit board production lots often varies.

  As the method of dividing the printed circuit board, methods such as dividing by a press die, dividing by a router bit, dividing by a thin grindstone, etc. are mainly used. Among them, the dividing method by a router bit is a printed circuit board having a relatively complicated shape. Even in such a case, since the division is easy, the stress generated on the substrate at the time of the division is small, and the cost of the tool is low, the substrate division method using router bits is becoming widespread today. However, a disadvantage of the dividing method using router bits is that the dividing speed is lower than that of other dividing methods, and therefore a large number of dividing devices are required according to the number of printed circuit boards produced.

  Many conventional printed circuit board dividing devices using router bits, as shown in Patent Document 1, for example, are used to sequentially cut all connecting portions of a printed circuit board with one spindle having a router bit at the tip. It has become. In a printed circuit board dividing apparatus having such a configuration, the only time to shorten the time required for dividing a printed circuit board is to increase the moving speed of the spindle between the divided positions. I can't expect it.

  On the other hand, as shown in Patent Document 2, two substrate support portions for holding a printed circuit board are arranged side by side, and two spindles each having a router bit at the tip corresponding to each substrate support portion are arranged side by side. A printed circuit board dividing apparatus is known. In the printed board dividing apparatus having such a configuration, by simultaneously operating the two spindles, the two printed boards can be divided simultaneously, so that the number of printed boards that can be divided within a certain time can be increased. it can. However, since it is necessary to arrange not only the spindle with the router bit at the tip but also two board support parts for holding the printed board with respect to the two spindles, the number of parts of the printed board dividing device increases, There is a problem of increasing the size.

  Further, conventionally, there has been used a printed circuit board dividing apparatus having a configuration in which a jig for positioning and holding a printed circuit board to be divided is provided on a turning table. Normally, as shown in Patent Document 1, for example, two jigs are provided on a turntable at an angular interval of 180 °, and the turntable is configured to stop at every 180 ° rotation angle. While the rotary table is stopped and the printed circuit board on one jig is being divided, the processed printed circuit board is taken out from the other jig and a new printed circuit board is set. The working time for machining is shortened. On the other hand, as shown in Patent Document 3, there is also known a configuration in which four jigs are provided on a turntable at an angular interval of 90 °, and the turntable is stopped at every 90 ° angular interval. . However, this type of conventional technology sequentially performs four processes at four stop positions on the swivel table, that is, workpiece removal, workpiece supply, workpiece positioning and fixing, and processing into the workpiece. Even if a swivel table with a simple structure is applied to the printed circuit board dividing apparatus, it is necessary to stop the swivel table for the time required for dividing one printed circuit board at each stop position of the swivel table. It cannot be expected to shorten.

JP 5-198915 A JP-A-6-190620 Japanese Utility Model Publication 5-16095

  SUMMARY OF THE INVENTION In view of the above-described problems of the prior art, the present invention provides a printed circuit board dividing apparatus and method that can significantly reduce the time required for dividing a printed circuit board while preventing the apparatus configuration from becoming complicated and large. The purpose is to do.

  In order to solve the above problems, the first invention is a printed circuit board dividing apparatus for dividing a printed circuit board into a plurality of pieces by cutting a plurality of connecting portions formed in the printed circuit board. A substrate supporting unit for supporting the substrate, a plurality of horizontal moving units supported by a horizontal guide mechanism so as to be opposed to the substrate supporting unit so as to face the substrate supporting unit, and a vertical driving mechanism for each of the horizontal moving units. A plurality of spindles supported so as to be movable up and down; a router bit attached to the tip of each spindle and driven to rotate; and a horizontal drive unit for moving at least one of the horizontal movement units in a horizontal direction; The horizontal movement unit moved by the horizontal driving unit and another horizontal movement unit are connected so as to adjust the distance, thereby the plurality of horizontal movement units. There is provided a printed circuit board dividing device comprising a distance adjusting means capable of adjusting a distance between a plurality of spindles supported by each moving unit.

  According to the printed circuit board dividing apparatus configured as described above, the intervals between the plurality of horizontal moving units are adjusted so that the intervals between the plurality of spindles having the router bits at the tips coincide with the arrangement pitch intervals of the connecting portions on the printed circuit board. Therefore, when a single printed board is divided, a plurality of spindles can be used to simultaneously perform a plurality of division processes. In addition, since a single printed board is divided by a plurality of spindles, it is not necessary to prepare a plurality of board support portions for supporting the printed board with respect to the plurality of spindles. Therefore, it is possible to provide a printed circuit board dividing apparatus that can significantly reduce the time required for dividing the printed circuit board while preventing the apparatus configuration from becoming complicated and large.

  The second invention is the printed circuit board dividing apparatus according to the first invention, wherein the controller further controls the cutting operation of the printed circuit board by each spindle, and the teaching necessary for the operation of cutting the printed circuit board by each spindle. An operation unit for inputting data and supplying it to the control unit, and the operation unit is capable of inputting teaching data for a spindle provided in a horizontal movement unit moved by the horizontal drive unit. In addition, it is possible to selectively input instruction data for simultaneously performing cutting operation of other spindles for each cutting position by the spindle. According to this configuration, according to the data given from the operation unit to the control unit, the printed circuit board can be divided and processed by a plurality of spindles at the same time, or can be divided and processed by only one spindle. Even if the individual pieces and the connecting portions configured in the above are various patterns, it is possible to perform division processing efficiently without any trouble.

  Furthermore, a third invention is the printed circuit board dividing apparatus according to the first invention, wherein the horizontal guide mechanism has two parallel horizontal guide shafts, and the horizontal drive unit is disposed between the two horizontal guide shafts. It has a feed screw shaft provided in parallel and connected to one of the horizontal movement units, and a control motor for rotationally driving the feed screw shaft. According to this configuration, a plurality of horizontal movement units that support each of the plurality of spindles can be supported stably and highly accurately by two parallel horizontal guide shafts, and a plurality of horizontal movement units can be supported. The distance between the two spindles can be adjusted with high precision and smoothness under stable support by these two parallel horizontal guide shafts, and new horizontal guide means are added to adjust the distance between multiple spindles. Therefore, it is possible to realize a highly accurate spindle interval adjusting function without complicating the support structure.

  Furthermore, a fourth invention is the printed circuit board dividing apparatus according to the first invention, wherein the distance adjusting means includes a connecting plate and a screw for screwing the connecting plate to the plurality of horizontally moving units adjacent to each other. The connecting plate has a screw insertion hole through which the screw is passed, and the screw insertion hole extends in a long hole shape along the moving direction of the horizontal movement unit. According to such a configuration, the mounting position of the connecting plate with respect to the plurality of horizontal movement units can be easily adjusted manually, so that the printed circuit board dividing apparatus capable of easily adjusting the interval between the plurality of spindles manually. Can be provided.

  Furthermore, a fifth invention is the printed circuit board dividing apparatus according to the first invention, wherein the distance adjusting means is connected to a control motor provided in one of the plurality of horizontal movement units and another horizontal movement unit. And a feed screw shaft that is connected and rotated by the control motor. According to such a configuration, it is possible to provide a printed circuit board dividing apparatus capable of automatically switching or automatically adjusting the interval between the plurality of horizontal movement units, that is, the interval between the plurality of spindles, under the control of the control motor. .

  Further, the sixth invention is the printed board dividing apparatus according to the first invention, wherein the horizontal guide mechanism and the horizontal drive unit are movable horizontally in a direction perpendicular to the guide direction of the horizontal movement unit by the horizontal guide mechanism. It is supported by a slider. According to such a configuration, it is possible to provide a printed circuit board dividing apparatus that can horizontally and vertically move the spindle with respect to the printed circuit board in a state where the position of the printed circuit board is fixed during the divided processing of the printed circuit board.

  Furthermore, the seventh invention is the printed circuit board dividing apparatus according to the first invention, wherein the horizontal guide mechanism and the horizontal drive unit are supported by a fixed support frame, and the substrate support unit is supported by the fixed support frame. It is provided to be movable in a direction orthogonal to the guide direction of the horizontal movement unit by the horizontal guide mechanism. According to this configuration, it is possible to provide a printed circuit board dividing apparatus that can move the spindle up and down while moving the printed circuit board and the spindle in the direction of the horizontal axis perpendicular to each other.

  Furthermore, an eighth invention is the printed circuit board dividing apparatus according to the sixth invention, wherein the substrate support portion is horizontally rotatable and is configured to stop rotating at every rotation angle of 180 °; It has two printed circuit board jigs arranged on the table at an angular interval of 180 °. According to such a configuration, while the turning table is stopped and the printed circuit board on one jig is divided using a plurality of spindles, the processed printed circuit board is taken out from the other jig. Since a new printed circuit board can be set at the same time, in addition to shortening the division processing time by using a plurality of spindles when dividing the printed circuit board one by one, the work time for continuous division processing is reduced. Shortening can be achieved.

  Furthermore, a ninth invention is the printed circuit board dividing apparatus according to the sixth invention, wherein the substrate support portion is configured to be horizontally rotatable and to stop rotating at every 90 ° rotation angle, Four jigs for printed circuit boards arranged at an angular interval of 90 ° on the table, and with the rotation stop of every 90 ° of the swivel table, each jig has a loading position for mounting the printed circuit board, A first half division position for dividing and processing about half of the plurality of connecting portions on the printed circuit board on the jig, and a second half dividing position for dividing and processing the remaining half of the connecting portions on the printed circuit board on the jig. In addition, it is configured such that the unloading position for unloading the divided printed circuit board is sequentially visited. According to such a configuration, the divided processing of the printed circuit board is sequentially performed in half at two adjacent stop positions among the four stop positions of the swivel table, so the stop time of the swivel table for the split processing is It can be shortened to about half of the time required for dividing the substrate at only one place. Therefore, in addition to drastically reducing the time required by dividing the printed circuit board with a plurality of spindles, it is possible to achieve a significant reduction in time by dividing the printed circuit board approximately in half at the two stop positions of the swivel table. It becomes.

  Furthermore, a tenth aspect of the present invention is the printed circuit board dividing apparatus according to the first aspect, wherein the vertical drive mechanism is configured such that the height of the router bit when the total value of the cutting length or cutting time by the router bit reaches a predetermined value. Bit height switching means for switching the position is provided. According to such a configuration, the router bit for the printed circuit board is not required before the contact point of the router bit with the printed circuit board reaches the use limit due to wear without requiring an expensive sensor for directly detecting the change in diameter due to the wear of the router bit. Therefore, it is possible to provide a printed circuit board dividing apparatus that can extend the life of the router bit with a simple configuration.

  Furthermore, an eleventh aspect of the invention is a printed circuit board dividing method for dividing a printed circuit board into a plurality of pieces by cutting a plurality of connected parts formed in the printed circuit board. At least a part of them is divided and processed simultaneously by a plurality of spindles each having a router bit at the tip. According to such a configuration, at least a part of the connecting portion in one printed circuit board is simultaneously divided by a plurality of spindles having a router bit at the tip, thereby greatly increasing the time required for dividing the printed circuit board. (For example, when there are two spindles, the maximum can be shortened to about half).

  The twelfth invention is a printed circuit board dividing method for dividing a printed circuit board into a plurality of pieces by cutting a plurality of connecting portions formed in the printed circuit board with a router bit provided at the tip of a spindle. The four jigs that support the printed circuit board are swung in one direction on the swivel table 22 and stopped at every rotation angle of 90 °, and printed on the jigs at two jig stop positions adjacent to each other. The substrate is divided into approximately half pieces. According to such a configuration, compared to the case where the division processing of the printed circuit board on the jig is completed at only one jig stop position, the jig on the turning table is used for the division processing of the printed circuit board at each stop position. The time for stopping can be shortened to about half.

  Therefore, according to the present invention, even a printed circuit board having a relatively complicated shape can be easily divided using a router bit, and the stress generated on the printed circuit board at the time of division can be kept small, and the cost of the tool can be reduced. It is possible to provide a printed circuit board dividing apparatus and method capable of significantly reducing the time required for dividing a printed circuit board while keeping the cost at a low level.

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

  1 to 10 show a first embodiment of the present invention, and FIG. 1 is a schematic plan view of a main part of a printed board dividing apparatus. 2 is a schematic side view of the main part of the printed circuit board dividing apparatus shown in FIG. 3 is a schematic cross-sectional view of a principal part taken along line 3-3 in FIG. 1 of the printed circuit board dividing apparatus shown in FIG. FIGS. 4A and 4B are rear views of the main part showing the interval adjusting means in the printed circuit board dividing apparatus of FIG. FIGS. 5A, 5B, and 5C are partial cross-sectional side views showing router bit lowering position switching means in the printed circuit board dividing apparatus of FIG. FIG. 6 is a block diagram schematically showing the configuration of the control unit in the printed circuit board dividing apparatus shown in FIG. FIG. 7 is a diagram illustrating a configuration example of the touch panel operation unit of the printed circuit board dividing apparatus illustrated in FIG. 1. FIG. 8 is a diagram illustrating another configuration example of the touch panel operation unit of the printed circuit board dividing apparatus illustrated in FIG. 1. FIG. 9 is a flowchart showing an example of printed circuit board division processing control by the control unit shown in FIG. FIG. 10 is a flowchart showing an example of router bit height switching control by the control unit shown in FIG.

  FIG. 11 to FIG. 13 schematically show examples of the configuration of a printed board that is divided by the printed board dividing apparatus according to the present invention.

  First, referring to FIG. 11 and FIG. 12, the printed circuit board 1 shown in FIG. 11 is surrounded by a piece 2a surrounded by slit holes 1h, 1i, 1j, and 1k and slit holes 1i, 1k, 1m, and 1n. The piece 2b has the same shape, and after electronic parts (not shown) are mounted on the pieces 2a and 2b, the piece 2b is divided into two pieces 2a and 2b and an end material 2c which is a discarded substrate. It is what is done. The printed circuit board 1 is provided with a total of seven connecting portions 1a to 1g, which are connected to the pieces 2a and 2b at the same position, that is, the connecting portion 1a and the connecting portion 1b and the connecting portion 1c. The portion 1d, the connecting portion 1d and the connecting portion 1e, and the connecting portion 1f and the connecting portion 1g have the same pitch interval D. Therefore, when this printed circuit board 1 is divided and processed by a printed circuit board dividing apparatus having two spindles, the distance between the two spindles is made to coincide with the pitch distance D of the connecting parts, and the two spindles are connected to the connecting part 1a. The parts 1b, the connecting part 1c and the connecting part 1d, the connecting part 1f and the connecting part 1g are respectively divided and processed at the same time, and when the connecting part 1e is divided, only one of the two spindles is operated. One connecting part can be cut by a total of four divisions. Therefore, the time required for the division can be shortened to about 4/7 as compared with a case where a total of seven connecting portions are connected one by one with one spindle.

  The printed circuit board 3 shown in FIG. 12 can be divided into a total of four pieces 4a, 4b, 5a, 5b and end pieces 6 having two types of shapes, the pieces 4a, 4b, and pieces 5a, 5b has the same shape. A total of 13 connecting portions 3a to 3m are formed, but the connecting portion 3a and the connecting portion 3c, the connecting portion 3b and the connecting portion 3d, the connecting portion 3e and the connecting portion 3g, the connecting portion 3f and the connecting portion 3h, Since the portion 3j and the connecting portion 3l and the connecting portion 3k and the connecting portion 3m are arranged at the same pitch interval D, only the connecting portion 3i is divided by one spindle, and the other connecting portions are two spindles by two. If the division processing is performed at the same time, a total of 13 connecting portions 3a to 3m can be completed by a total of seven division processing, and the time required for the division can be reduced to about 7/13.

  The printed circuit board 7 shown in FIG. 13 can be divided into eight pieces 8a to 8h and end pieces 8i having the same shape, and after the electronic components 9a to 9e are mounted on the pieces 8a to 8h, By using the printed circuit board dividing apparatus shown in FIG. 1, it is possible to complete the division of a total of 32 connecting portions in a total of 18 steps from S1 to S18. In addition, the connection part shown with the same referential mark here represents dividing simultaneously. Two positioning reference holes 8m and 8n are formed in the printed circuit board 7.

  Next, mainly referring to FIGS. 1 to 4, the printed circuit board dividing apparatus 20 is of an in-line type, and includes a substrate support portion 21 that supports printed circuit boards having various sizes and various individual pattern shapes. The substrate support portion 21 includes a turning table 22 that can be rotated horizontally around a vertical axis 22a, and two jigs 23 and 24 for positioning and fixing the printed circuit board. , 24 are arranged on the turning table 22 at an angular interval of 180 °. The swivel table 22 is swiveled via an intermittent swivel mechanism 27a by a brake motor 27 as a swivel shaft motor so that the swivel table 22 is stopped for a predetermined time every rotation angle of 180 °. 23 and 24 can move alternately between the substrate loading / unloading position A and the substrate dividing position B, and can be stopped at both positions for a predetermined time.

  For example, the printed circuit board 7 that has finished mounting electronic components in a pre-process processing unit such as an electronic component mounting process is transported from the pre-process processing unit by a transport conveyor (not shown) and transferred onto the receiving conveyor 30. 2, the jigs 23 and 24 at the substrate loading / unloading position A of the turning table 22 are transferred by the transfer mechanism 40 schematically shown in FIG. 2 (the jigs in the state shown in FIGS. 1 and 2). 24) Carried up.

  The receiving conveyor 30 includes a fixed guide member 30a having a conveyor belt conveyor 30c driven by a motor 30d, and a movable guide member 30b having a conveyor belt conveyor 30e driven by a motor 30f. As shown, the movable guide member 30b can be variably controlled by the feed shaft 30g driven by the control motor 30h in accordance with the width of the printed circuit board 7.

  As schematically shown in FIG. 2, the transport mechanism 40 includes a plurality of chucks 42 that can individually hold the individual pieces 8 a to 8 h and the end material 8 i of the printed circuit board 7 in the hand portion 41. The chuck 42 shown is of a suction type, but may be a mechanical chuck that moves the gripping claws.

  The printed circuit board 7 mounted and positioned on the jig 23 or the jig 24 by the transport mechanism 40 moves the position of the swivel table 22 when the jigs 23 and 24 are moved from the board loading / unloading position A to the board dividing position B. It is attracted and fixed to the jigs 23 and 24 by the downward suction force applied to the dust suction duct 28 provided below. Further, the printed circuit board 7 divided into the pieces 8a to 8h and the end material 8i after the division processing is moved by the conveyance mechanism 40 from above the jigs 23 and 24 moved from the substrate division position B to the substrate loading / unloading position A. When the end material 8i is pulled up and carried to a position above the end material discharge hopper 50, the end material 8i is released from the hand portion 41 of the transport mechanism 40 and is collected into the end material discharge hopper 50. Thereafter, the pieces 8a to 8h are separated. It is configured to be carried to the carry-out conveyor 51. Note that a tray changer may be provided in place of the carry-out conveyor 51, and the printed circuit board pieces 8a to 8h that have undergone the division processing may be stored in a tray on the tray changer.

  Corresponding to the substrate dividing position B, the processing machine unit 60 is disposed. The processing machine section 60 includes two horizontal movement units 62 and 63 supported above the substrate support section 21 by a horizontal guide mechanism 61 so as to be horizontally movable in the direction of the first horizontal axis X (left and right direction in FIG. 1). , A horizontal driving unit 64 for driving one of the horizontal moving units 62 and 63 in the horizontal direction, and supported by each of the horizontal moving units 62 and 63 so as to be movable in the direction of the vertical axis Z through the vertical driving mechanism 68. The two spindles 70 and 71 are provided. The spindles 70 and 71 have collet chucks 70a and 71a at their respective tips, and router bits 72 and 73 attached to the collet chucks 70a and 71a are driven by spindle motors 70b and 71b provided inside the spindles 70 and 71, respectively. Each is driven to rotate. The spindle motors 70b and 71b are preferably electric motors, more preferably DC motors, but may be air motors.

  As shown in FIG. 3, the vertical drive mechanism 68 in the horizontal movement unit 62 is an air cylinder with a slide (Z-axis air cylinder), a fixed portion 68a fixed to the horizontal movement unit 62, and a vertical portion on the fixed portion 68a. And a slider 68b that is supported so as to be movable and is driven up and down by switching of the supplied air pressure. The spindle 70 is detachably attached to a holder 69 fixed to the slider 68b. Although detailed description is omitted, the vertical drive mechanism 68 in the horizontal movement unit 63 has the same configuration as the vertical drive mechanism 68 in the horizontal movement unit 62.

  As shown in FIGS. 1 to 3, in this embodiment, the horizontal guide mechanism 61 has two parallel horizontal guide shafts 75 and 76, and the horizontal moving unit 62 includes slide bearings 62a and 62b. The horizontal movement shaft 63 is supported by the horizontal guide shafts 75 and 76 so as to be horizontally movable in the direction of the first horizontal axis X (left and right in FIG. 1). The shafts 75 and 76 are supported so as to be horizontally movable in the direction of the first horizontal axis X (the left-right direction in FIG. 1). Further, the horizontal driving unit 64 is provided between the horizontal guide shafts 75 and 76 in parallel therewith and is driven to rotate by a servo motor (X-axis motor) 77 as a control motor (first horizontal feed shaft). 78. One of the horizontal movement units 62 and 63 (in this embodiment, the horizontal movement unit 62 on the left side in FIG. 1) is connected to the ball screw shaft 78 via a ball nut 62c.

  Further, the horizontal guide shafts 75 and 76 and the ball screw shaft 78 which is the first horizontal feed shaft are supported by a pair of left and right horizontal movement sliders 81 and 82, and the horizontal movement sliders 81 and 82 are left and right of the fixed frame 83. The guide rails 84 and 85 provided at the tops of the wall portions 83a and 83b are supported so as to be movable in the direction of the second horizontal axis Y perpendicular to the first horizontal axis X (the front-rear direction in FIG. 1). The horizontal movement sliders 81 and 82 are servo motors (Y-axis motors) as control motors in which a ball nut 82a provided on one of them (the horizontal movement slider 82 in the illustrated embodiment) is provided on the fixed frame 83. ) And the ball screw shaft (second horizontal feed shaft) 87 driven by the shaft 86, so that the movement can be controlled in the direction of the second horizontal axis Y.

  Further, the printed circuit board dividing apparatus 20 includes a distance adjusting unit 88 that connects the horizontal moving unit 62 that is horizontally driven by the horizontal driving unit 64 and another horizontal moving unit 63 so that the distance can be adjusted. As shown in FIGS. 4A and 4B, the distance adjusting means 88 in this embodiment includes a connecting plate 89 extending in the direction of the first horizontal axis X (left-right direction) and the connecting plate 89 adjacent to each other. Screws 90 and 91 for screwing the two horizontal movement units 62 and 63 are provided, and the connecting plate 89 has two screw insertion holes 89a and 89b for passing the screws 90 and 91. At least one of the two screw insertion holes (the screw insertion hole 89b in the illustrated embodiment) is formed into a long hole shape along the moving direction of the horizontal movement units 62, 63, that is, the direction of the first horizontal axis X (left-right direction). It extends.

  Therefore, the position of the horizontal movement unit 63 relative to the horizontal movement unit 62 can be adjusted easily and smoothly in the direction of the first horizontal axis X by loosening the screw 91 that passes through the elongated screw insertion hole 89b. Then, the screw 91 is tightened at a position where the distance d between the router bits 72 and 73 at the tips of the spindles 70 and 71 coincides with the arrangement pitch distance D (see FIG. 13) of the connecting portion on the printed circuit board 7, thereby moving horizontally. The horizontal movement unit 63 can be fixedly connected to the unit 62. The connecting plate 89 may have one continuous elongated screw insertion hole through which the two screws 90 and 91 can pass.

  Further, as shown in FIG. 1, the horizontal moving unit 62 that is horizontally driven by the horizontal driving unit 64 is provided with a CCD camera 92 that photographs the surface of the printed circuit board 7 to be divided, and is photographed by the camera 92. By projecting the image on a display monitor (not shown) provided with a cross line representing the center of the router bit 72, the horizontal coordinate position of the router bit 72 on the printed circuit board 7 can be easily recognized.

  Further, as shown in FIG. 6, the printed circuit board dividing apparatus 20 includes a control unit 93 for controlling operations necessary for cutting the connection parts S1 to S18 of the printed circuit board 7 by the spindles 70 and 71, and the control unit. 93 has a touch panel type operation unit 94 for giving necessary teaching data to 93. The operation unit 94 can input teaching data for the spindle 70 provided in the horizontal moving unit 62 driven by the horizontal driving unit 64, and at the same time, another spindle 63 is simultaneously connected to each cutting position by the spindle 62. It is formed so that instruction data for cutting operation can be selectively input.

  More specifically, in this embodiment, the program for dividing the printed circuit board is configured to be created according to teaching data input from the touch panel type operation unit 94, and in this embodiment, further, The touch panel type operation unit 94 is configured to selectively display two teaching mode operation screens shown in FIGS. 7 and 8 from a teaching mode selection menu screen (not shown).

  The operation screen of the operation unit 94 shown in FIG. 7 is for directly setting the division position information as teaching data, and for each division position (point) where the initial value starts from 1, the captured image of the camera 92 is displayed on the display monitor. While watching, the spindle 70 is moved to the cutting start position by using the four-way jog buttons 95a to 95d, and when the center of the router bit 72 reaches the cutting start position, the confirmation button 96 is pressed, and the left and right and front and rear at the cutting start position. The coordinate position data can be given to the control unit 93. Similarly, the spindle 70 is moved to the cutting end position by using the four-direction jog buttons 95a to 95d, and when the center of the router bit 72 reaches the cutting end position, the confirmation button 96 is pressed, so that the position at the cutting end position is reached. Left and right and front and rear coordinate position data can be given to the control unit 93.

  In the operation screen of the operation unit 94 shown in FIG. 8, when a left / right coordinate value setting button 98a, a front / rear coordinate value setting button 98b, and a cutting length setting button 99 are pressed, a numeric keypad screen (not shown) is displayed and a numerical value can be input. It is configured as follows. Therefore, the left and right coordinate values of the cutting start position can be input numerically by the left and right coordinate numerical value setting button 98a and the numeric keypad screen, and the front and rear coordinates of the cutting start position can be input numerically by the front and rear coordinate numerical value setting button 98b and the numeric keypad screen. The cutting length is input numerically by the cutting length setting button 99 and the numeric keypad screen, and the cutting direction can be designated by the four direction designation buttons 100a to 100d. When the designation is completed, the confirmation button 101 is pressed to provide the control unit 93 with numerical data of the left and right and front and rear coordinate positions at the cutting start position, numerical data indicating the cutting length, and data indicating the cutting direction. Can do.

  Further, as shown in FIGS. 7 and 8, the operation unit 94 is configured to simultaneously perform the cutting operation of the other spindle 71 for each cutting execution position of the printed circuit board 7 by the one spindle 70 on either teaching operation screen. Interlock buttons 97 and 102 for providing an interlock command are provided. Accordingly, it is possible to select whether or not the other spindle 71 is interlocked and the cutting process is simultaneously executed for each cutting process position of the printed circuit board 7 by the one spindle 70. If not linked, when the printed circuit board 7 is cut by one spindle 70, the other spindle 71 can be kept in a state of neither being lowered nor driven to rotate. As a non-interlocking mode, at the time of cutting the printed circuit board 7 by one spindle 70, the other spindle 71 may restrict only the lowering operation while maintaining its rotational driving state. This is effective in the case where it takes more time than the allowable value until the spindle 71 reaches a certain number of rotations when the rotation is resumed after the rotation of the spindle 71 is stopped.

  As shown in FIG. 6, the control unit 93 includes a data storage unit 93a that stores various teaching data given from the operation unit 94 together with a processing program installed in advance. Then, as shown in FIG. 9, the control unit 93 executes a program stored in advance in the data storage unit 93 a, and based on the data given from the operation unit 94, all of the given printed circuit boards are processed. It is checked whether or not the cutting has been completed (step 110). If the cutting has not been completed, data necessary for cutting the next cutting point is read from the storage unit 93a, and then the spindle is interlocked by operating the interlock buttons 97 and 102. The presence / absence of a command is checked (steps 111 to 112). When there is an interlocking command, the other spindles 71 are also interlocked to perform cutting with the two spindles 70 and 71 (step 113). Return. On the other hand, when there is no interlocking command, the other spindle 71 is stopped, only one spindle 70 is operated (step 114), and the process returns to step 110. When all the cutting points have been cut, the dividing process is finished.

  Therefore, by utilizing such an interlocking selection function, for example, when cutting the connecting portions S5, S6, S11, and S16 in the printed circuit board 7, only the spindle 70 is operated, and the other connecting portions S1 to S1 in the printed circuit board 7 are operated. When cutting S4, S7 to S10, S12 to S15, and S17 to S18, the two spindles 70 and 71 are simultaneously operated so that their vertical driving and rotational driving are performed simultaneously, thereby connecting the connecting portion S1 of the printed circuit board 7. The dividing process by cutting S18 can be performed at high speed.

  Further, in this embodiment, as shown in FIGS. 3 and 5A, 5B, and 5C, the horizontal movement units 62 and 63 are provided with bit height switching devices 103, respectively. The router bit 73 at the tip of the spindle 71 provided in the horizontal movement unit 63 is moved from the retracted position above the printed circuit board 7 (see FIG. 5A) to the processing region by the Z-axis air cylinder 68 which is a vertical drive mechanism. The forward end position can be switched in two stages by the bit height switching device 103. Similarly, the forward end position of the router bit 72 at the tip of the spindle 70 provided in the horizontal movement unit 62 can be switched in two stages by the bit height switching device 103. Referring to FIG. 5A, the bit height switching device 103 includes a movable stopper 104 that can be brought into contact with a contact pin 68c provided on the lower surface portion of the slider 68b of the Z-axis air cylinder 68, and the movable stopper. And an air cylinder 105 as a stopper cylinder for driving the actuator 104 forward and backward. FIG. 5B shows a state in which the movable stopper 104 has advanced to a position where it comes into contact with the contact pin 68c, and FIG. 5C shows a state in which the movable stopper 104 has moved back to a position where it does not interfere with the contact pin 68c. Show. As can be seen from FIGS. 5B and 5C, when the movable stopper 104 moves forward to a position where it comes into contact with the contact pin 68c by the driving force of the air cylinder 105, the forward end position of the router bit 73 becomes the movable stopper 104. Therefore, the contact position between the router bit 73 and the printed circuit board 7 during the cutting process is shifted by the thickness of the movable stopper 104.

  If the router bits 72 and 73 are always used at the same height position when the substrate is divided, the cutting blade portions of the router bits 72 and 73 are worn early, and the cutting performance is deteriorated early. In that case, since the section of the cutting blade part in the router bits 72 and 73 is usually several times (3 to 5 times) the plate thickness of the printed circuit board, one place in the section of the cutting blade part of the router bits 72 and 73 It is uneconomical to replace the router bits 72 and 73 only when they are worn. Therefore, in this embodiment, when the total value of the cutting time or cutting length by the router bits 72 and 73 reaches a predetermined limit value, the router bit 72, The cutting blade part 73 is brought into contact with the printed circuit board 7 at a place different from the worn part, thereby extending the life of the router bits 72 and 73.

  That is, in this embodiment, as shown in FIGS. 6 and 10, the control unit 93 reads teaching data for each cut portion of the printed circuit board from the data storage unit 93 a in order to perform division processing of the printed circuit board 7. Each time, the sum of the cutting length or cutting time by the current router bits 72 and 73 is calculated from the teaching data (steps 115 to 116), and whether or not the total value has reached a preset use limit value. Is determined (step 117). If the use limit value has not been reached, the printed circuit board 7 is cut according to the teaching data (step 118), and the process returns to step 115. On the other hand, when the total cutting length or cutting time by the router bits 72 and 73 reaches the use limit value, it is determined whether or not the number of times of switching the vertical height position of the router bits 72 and 73 has reached a predetermined number. (Step 119) When the predetermined number of times has been reached, after the divided processing is performed to the end of the printed circuit board 7 being processed, a router bit exchange command alarm is issued and the total value is reset (Steps 120 to 120). 121), the dividing process is temporarily ended.

  On the other hand, if the number of times of switching the vertical height position of the router bits 72 and 73 has not reached the predetermined number, the total value is reset after switching the height position of the blade of the router bit (steps 122 and 123). . Then, it is determined whether or not the number of divided printed circuit boards has reached a predetermined number (step 124). When the predetermined number is reached, the division processing is terminated, and when the predetermined number has not been reached, step Returning to 115, the division processing of the next division portion is continued.

  Therefore, in the printed circuit board dividing apparatus 20 having the above configuration, the distance d between the two spindles 70 and 71 having the router bits 72 and 73 at the tip is the arrangement pitch distance D of the connecting portions S1 and S2 on the printed circuit board 7. After adjusting the distance d between the two horizontal moving units 62 and 63 so as to coincide with each other, the horizontal moving units 62 and 63 can be connected and fixed, so that it is necessary when dividing one printed circuit board 7. Accordingly, the two spindles 70 and 71 can be used to perform the division processing at two locations simultaneously. In addition, since one printed circuit board 7 can be divided and processed by two spindles 70 and 71 simultaneously, the substrate support for supporting the printed circuit board 7 at the divided position by the two spindles 70 and 71 is provided. There is no need to arrange two parts 21 side by side. Therefore, it is possible to provide the printed circuit board dividing apparatus 20 that can significantly reduce the time required for the division processing of the printed circuit board 7 while preventing the apparatus configuration from becoming complicated and large.

  Further, according to the teaching data given from the operation unit 94 to the control unit 93, division processing by the two spindles 70 and 71 is executed simultaneously, or division by only one of the two spindles 70 and 71 is performed. Since the processing can be executed, even if the pieces 8a to 8h and the connecting portions S1 to S18 formed in the printed circuit board 7 have various patterns, they can be divided and processed without any trouble. become. When a printed circuit board in which pieces having the same shape are arranged at the same pitch interval D is manufactured in units of lots, the arrangement pitch interval D of the individual pieces and the connecting portion may vary for each printed circuit board production lot. In many cases, the interval adjusting means 88 is used to adjust the interval d between the horizontal movement units 62 and 63 for each lot of the printed circuit board 7 even for the variation of the arrangement pitch interval D generated in units of lots of the printed circuit board 7. Therefore, it is possible to divide each printed circuit board with high processing accuracy without any trouble using the two spindles 70 and 71.

  In addition, according to the configuration of the above embodiment, the mounting position of the connecting plate 89 with respect to the two horizontal movement units 62 and 63 can be easily adjusted manually, so the interval between the plurality of spindles 70 and 71 can be manually adjusted. It can be easily adjusted. Further, it is necessary to change the interval between the spindles 70 and 71 by operating the connecting plate 89 only when the production lot of the printed circuit board to be divided is changed or when the printed board is changed to a different type. Since no operation is required, manual operation is not inconvenient.

  However, as shown in FIG. 14, the distance adjusting unit 88 is a control provided in, for example, one of the two horizontal movement units 62 and 63 (preferably the horizontal movement unit 62 driven by the horizontal drive mechanism 64). A motor 125, a ball screw shaft 126 that is a feed shaft connected to the control motor 125, and a ball nut 127 that is provided in another horizontal moving unit 63 and is screwed with the ball screw shaft 126 may be provided. . According to such a configuration, the distance between the two horizontal movement units 62 and 63, that is, the distance between the two spindles 70 and 71 can be automatically switched or automatically adjusted by the control of the control motor 125.

  In the above embodiment, the two horizontal movement units 62 and 63 supporting the two spindles 70 and 71 are supported by the two parallel horizontal guide shafts 75 and 76 so that the horizontal movement can be performed stably and with high accuracy. In addition, since the distance can be adjusted via the distance adjusting means 88, a new horizontal guide means for adjusting the distance between the router bits 72 and 73 at the tips of the two spindles 70 and 71 is provided in the spindle support mechanism. There is no need to add. Therefore, it is possible to realize a highly accurate spindle interval adjusting function without complicating the spindle support structure.

  FIGS. 15 to 20 show a second embodiment of the printed circuit board dividing apparatus according to the present invention. FIG. 15 is a schematic plan view of the main part of the printed circuit board dividing apparatus. 16 is a side view taken along the line 16-16 in FIG. 15 of the printed circuit board dividing apparatus shown in FIG. 17 is a side view taken along the line 17-17 in FIG. 15 of the printed circuit board dividing apparatus shown in FIG. 18 is a cross-sectional view of the printed circuit board dividing apparatus shown in FIG. 15 taken along line 18-18 in FIG. FIG. 19 is a cross-sectional view of the printed circuit board dividing apparatus shown in FIG. 15 taken along line 19-19 in FIG. 20 is a block diagram schematically showing a configuration of a control unit and an operation unit in the printed circuit board dividing apparatus shown in FIG. In these drawings, the same constituent elements as those in the first embodiment are given reference numerals with 200 added to the reference numerals.

  Referring to these drawings, the printed circuit board dividing apparatus 220 according to the second embodiment includes a substrate support portion 221 that supports the printed circuit board 7, and the substrate support portion 221 in this embodiment is capable of horizontal rotation and 90. A turntable 222 configured to stop rotating at every rotation angle of °, and four printed circuit board jigs 223, 224, 225, and 226 disposed on the turntable 222 at an angle interval of 90 ° Have. The turning table 222 is formed by a brake motor 227 serving as a turning axis motor so as to be stopped at every rotation angle of 90 ° around a vertical axis line 222a parallel to the vertical axis line Z through an intermittent turning mechanism 227a. ˜226 is divided into about a half of a plurality of the connecting portions with respect to the loading position A1 on which the printed circuit board 7 is mounted and the printed circuit board on the jig in accordance with the rotation stop of the turning table 222 every 90 °. The first half divided position B1, the second half divided position B2 for dividing and processing the remaining half of the connecting portion with respect to the printed circuit board on the jig, and the carry-out position A2 for carrying out the divided processed printed circuit board are sequentially circulated. Has been. FIG. 15 shows that the jig 223 stops at the carry-in position A1, the jig 224 stops at the first half division position B1, the jig 225 stops at the second half division position B2, and the jig 226 stops at the carry-out position A2. It shows the state.

  A receiving conveyor 230 is provided in the vicinity of the turning table 222 corresponding to the loading position A1, and the printed circuit board 7 carried by the receiving conveyor 230 is gripped by the loading transport mechanism 240 and is in the loading position A1. It can be supplied on the tools 223-226.

  Corresponding to the first half division position B1 and the second half division position B2, processing machine units 260 and 260 are disposed in the vicinity of the turning table 222, respectively. Since the processing machine unit 260 has the same configuration as the processing machine unit 60 of the first embodiment, a reference numeral obtained by adding 200 to the reference numeral of each component is given, and detailed description thereof is omitted.

  In correspondence with the carry-out position A2, an end material discharge hopper 250, a substrate tray changer 252, and a substrate carry-out transport mechanism 253 are provided in the vicinity of the turning table 222. The printed circuit board 7 divided into the pieces 8a to 8h and the end material 8i after the division processing is lifted by the carry-out transport mechanism 253 from the jigs 223 to 226 moved from the board division position B2 to the carry-out position A2. When the end material discharge hopper 250 is carried to the upper position, the end material 8i is released from the hand portion 253a of the carry-out transport mechanism 253 and collected into the end material discharge hopper 250, and thereafter the pieces 8a to 8h are separated. Subsequently, the unloading transport mechanism 253 is transported to the tray on the tray changer 252 and is accommodated in the tray.

  Briefly describing the two processing machine units 260, the two horizontal movement units 262 and 263 are supported by the horizontal guide mechanism 261 above the substrate support unit 221 so as to be horizontally movable. The two spindles 270 and 271 are supported by a vertical drive mechanism 268 so as to be movable up and down. Router bits 272 and 273 are attached to the tips of the spindles 270 and 271 so as to be driven to rotate.

  A horizontal driving unit 264 that drives one of the horizontal moving units 262 and 263 in the horizontal direction includes a control motor 277 and a feed shaft that is rotationally driven by the control motor 277, that is, a ball screw shaft 278. A ball nut 262 c provided in the horizontal movement unit 262 is screwed into the ball screw shaft 278.

  The interval adjusting means 288 for connecting the horizontal moving unit 262 driven by the horizontal driving unit 264 and the other horizontal moving unit 263 so that the interval can be adjusted has an elongated hole-like screw insertion hole as in the first embodiment. A connecting plate 289 and screws 290 and 291 are provided. Further, the bit height switching means 103 has a movable stopper 304 and an air cylinder 305 as in the first embodiment.

  The two processing machine units 260 are respectively input with a control unit 293 for controlling the cutting operation of the printed circuit board 7 by the two spindles 270 and 271 and teaching data necessary for the cutting operation of the printed circuit board 7 by the spindles 270 and 271. An operation unit 294 for giving to the control unit 293, and the operation unit 294 can input teaching data for the spindle 270 provided in the horizontal movement unit 262 driven by the horizontal drive unit 264, and Instruction data for simultaneously performing the cutting operation of the other spindles 271 at each cutting position by the spindle 270 is selectively input. More specifically, the operation unit 294 has the configuration shown in FIGS. 7 and 8 as in the first embodiment, and the control unit 293 can execute the operations shown in FIGS. 9 and 10. Therefore, detailed description is omitted. The difference from the first embodiment is that the processing unit 260 arranged corresponding to the first half division position B1 is in charge of cutting processing from S1 to S10 for the supplied printed circuit board 7, while The processing machine unit 260 arranged corresponding to the second half division position B2 is in charge of cutting processing from S11 to S18 for the supplied printed circuit board 7.

  In the printed circuit board dividing apparatus 220 according to the second embodiment having the above-described configuration, the printed circuit board 7 is disposed at two adjacent stop positions B1 and B2 among the four stop positions A1, B1, B2, and A2 of the turning table 222. Since the division processing is sequentially performed about half by half, the stop time of the turning table 222 for the division processing can be reduced to about half the time when the division processing of the printed circuit board 7 is performed at only one place. Therefore, the synergistic effect of dividing the printed circuit board 7 by the two spindles 270 and 271 and dividing the printed circuit board 7 by approximately half at the two stop positions B1 and B2 of the turning table 222, The time required for the division processing of one printed circuit board can be shortened to about ¼ of the time required for the division processing of the printed circuit board 7 at only one place and only one spindle, which is a significant time. Shortening can be achieved.

  FIG. 21 is a main part schematic plan view showing a third embodiment when the present invention is applied to a stand-alone type printed circuit board dividing apparatus. In the figure, the same reference numerals as those obtained by adding 300 to the reference numerals are attached to the same components as those in the first embodiment. In the printed board dividing apparatus 320 according to the third embodiment, the board support unit 321 includes a moving table 322 and a jig 323 attached thereon. The two horizontal movement units 362 and 363 are supported by a horizontal guide mechanism 361 so as to be horizontally movable in the direction of the first axis X, and are driven by the horizontal drive unit 364 in the direction of the first axis X. ing. The two spindles 370 and 371 are supported by the horizontal movement units 262 and 263 via the vertical drive mechanism 368, respectively.

  Further, in the third embodiment, the horizontal guide mechanism 361 and the horizontal drive unit 364 are supported by the left and right wall portions 383c and 383d of the fixed frame 383, while the substrate support portion 321 is a pair of left and right horizontal movements. The horizontal movement sliders 381 and 382 are supported by the sliders 381 and 382, and the guide rails 384 and 385 provided on the tops of the left and right wall portions 383a and 383b of the fixed frame 383 are orthogonal to the first horizontal axis X. 2 is supported so as to be movable in the direction of the horizontal axis Y (front-rear direction in FIG. 18). The horizontal movement sliders 381 and 382 are servo motors (Y-axis motors) as control motors in which a ball nut 382a provided on one of them (horizontal movement slider 382 in the illustrated embodiment) is provided on the fixed frame 383. ) By being screwed with a ball screw shaft (second horizontal feed shaft) 387 driven by 386, movement control in the direction of the second horizontal axis Y is possible.

  According to the configuration of the third embodiment, the spindles 370 and 371 can be moved up and down while moving the printed circuit board 7 and the two spindles 370 and 371 in the directions of the horizontal axes X and Y orthogonal to each other. And since a turning table is not used, the structure of the board | substrate support part 321 becomes a simple thing and it can manufacture at low cost. Note that the printed circuit board dividing device 320 having such a configuration can also be made in-line type by arranging a receiving conveyor, a scrap disposal unit, a carry-out conveyor, a transport mechanism, and the like with respect to the board support section 321. It is.

  22A, 22B, and 22C are respectively a partial cross-sectional side view, a front view, and a rear view of the vicinity of the horizontal movement unit showing a modification of the vertical drive mechanism in the above embodiment. In these drawings, the same components as those in the first embodiment are denoted by the same reference numerals. In the vertical drive mechanism 68 of this embodiment, holders 69 and 69 for holding spindles 70 and 71 are engaged with a servo motor 68d, a ball screw shaft 68e rotated by the servo motor 68d, and the ball screw shaft 68e. It has a ball nut 68f, and the spindles 70 and 71 are moved in the vertical direction by the rotational drive of the servo motor 68d. In the printed circuit board dividing device 20 having such a vertical drive mechanism 68, the lowering amount of the router bits 72 and 73 can be controlled to an arbitrary amount by the servo motor 68d. Therefore, the bit height switching device 103 in the first embodiment is used. Is no longer necessary. Even in the case of using this servo motor 68d, as in the above embodiment, the control unit calculates the total length of the cutting length or cutting time by each of the router bits 72 and 73 based on the teaching data input from the operation unit. When the total value reaches a predetermined value, it can be controlled to change the descending operation amount by the servo motor 68d by a predetermined amount, so that it is expensive to directly detect a change in diameter due to wear of the router bits 72 and 73. Without using a sensor, the contact positions of the router bits 72 and 73 with respect to the printed circuit board 7 can be switched and used before the contact points of the router bits 72 and 73 with the printed circuit board 7 reach the use limit due to wear. Therefore, the router bits 72 and 73 can have a long life efficiently with a simple configuration. Further, since the vertical drive mechanism 68 is constituted by a servo motor, when moving the spindles 70 and 71 having the router bits 72 and 73 at the tips from one cutting processing position to the next cutting processing position, It is possible to move the spindles 70 and 71 so as to draw a smooth curve instead of moving the spindles 70 and 71 at a right angle when moving from the movement to the horizontal movement or when moving from the horizontal movement to the vertical movement. Therefore, the spindles 70 and 71 can be moved to the next cutting position without greatly reducing the moving speed. Therefore, the time required for dividing the printed circuit board can be further shortened.

  Further, in the embodiment using the bit height switching device 103 as in the first embodiment, as shown in FIGS. 23 and 24, the rotation is provided on the outer peripheral portion of the rotary cam 107 whose rotation is controlled by the pulse motor 106. Four cam surfaces 107b, 107c, 107d, and 107e having different heights T1 to T4 (T1 <T2 <T3 <T4) with respect to the center 107a are formed, and these cam surfaces 107b to 107e are selectively formed on the lower surface of the holder 69. You may comprise so that it may contact | abut to the contact pin 68c. With this configuration, the forward end position when the router bits 72 and 73 are lowered can be changed in four stages by the difference of T1 <T2 <T3 <T4.

  Although the illustrated embodiment has been described above, the present invention is not limited to the embodiment described above. For example, the number of spindles having a router bit at the tip is not limited to two, and may be three or more. Further, the spindle provided with the router bit at the tip is not limited to the one arranged above the substrate support portion, and may be arranged below the substrate support portion to cut the printed board from below. Furthermore, the printed circuit board divided by the apparatus and method of the present invention is not limited to the one on which electronic components are already mounted, and may be a printed circuit board before mounting electronic components.

  By using the printed circuit board dividing apparatus and the printed circuit board dividing method according to the present invention, it is possible to easily divide even a printed circuit board having a relatively complicated shape, while suppressing the stress generated on the printed circuit board at the time of dividing, Since the time required for the division processing of the printed circuit board can be greatly shortened while keeping the cost of the tool low, it is extremely useful in the field of the division processing of the printed circuit board. Further, the present invention is not limited to the division of the multi-sided printed board, but can be applied to the field of external processing of the multi-sided printed board.

It is a principal part schematic plan view of the printed circuit board dividing device which shows 1st Example of this invention. It is a principal part schematic side view of the printed circuit board dividing apparatus shown in FIG. It is a principal part schematic sectional drawing in alignment with line 3-3 in FIG. 1 of the printed circuit board division | segmentation apparatus shown in FIG. (A), (b) is a principal part rear view which shows the space | interval adjustment mechanism in the printed circuit board division | segmentation apparatus of FIG. 1, respectively. (A), (b), (c) is a partial cross-section principal part side view which shows the router bit height switching apparatus in the printed circuit board dividing apparatus of FIG. 1, respectively. It is a block diagram which shows roughly the structure of the control part in the printed circuit board division | segmentation apparatus shown in FIG. It is a figure which shows the example of 1 structure of the touchscreen operation part of the printed circuit board division | segmentation apparatus shown in FIG. It is a figure which shows the other structural example of the touchscreen operation part of the printed circuit board division | segmentation apparatus shown in FIG. It is a flowchart which shows an example of the printed circuit board division | segmentation process control by the control part shown in FIG. It is a flowchart which shows an example of the router bit height switching control by the control part shown in FIG. It is a top view which shows typically the example of 1 structure of the printed circuit board divided | segmented by the printed circuit board dividing apparatus shown in FIG. It is a top view which shows typically the other structural example of a printed circuit board. It is a top view which shows typically another structural example of a printed circuit board. It is a partial cross-section principal part top view of the horizontal movement unit vicinity which shows the modification of a space | interval adjustment means. It is a principal part schematic plan view of the printed circuit board division | segmentation apparatus which shows 2nd Example of this invention. FIG. 16 is a side view taken along the line 16-16 in FIG. 15 of the printed circuit board dividing device shown in FIG. 15; It is an arrow side view along the 17-17 line in FIG. 15 of the printed circuit board dividing apparatus shown in FIG. FIG. 19 is a cross-sectional view of the printed circuit board dividing device shown in FIG. 15 taken along line 18-18 in FIG. FIG. 19 is a cross-sectional view of the printed circuit board dividing device shown in FIG. 15 taken along the line 19-19 in FIG. FIG. 16 is a block diagram schematically showing a configuration of a control unit in the printed circuit board dividing device shown in FIG. 15. It is a principal part schematic plan view of the printed circuit board dividing device which shows 3rd Example of this invention. (A), (b), (c) is the partial cross section principal part side view, front view, and back view of the horizontal movement unit vicinity which show the modification of an up-down drive mechanism, respectively. It is a partial cross section principal part side view of the horizontal movement unit vicinity which shows the modification of a router bit height switching apparatus. It is explanatory drawing which shows the cam shape of the router bit height switching apparatus shown in FIG.

Explanation of symbols

1, 3, 7 Printed circuit boards 2a, 2b, 4a, 4b, 5a, 5b, 8a to 8h Pieces 1a to 1g, 3a to 3m, S1 to S18 Connecting parts 20, 220, 320 Printed circuit board dividing apparatuses 21, 221, 321 Substrate support parts 22, 222, 322 Turning tables 23, 24, 223, 224, 225, 226 Jigs 60, 260, 360 Processing machine parts 61, 261, 361 Horizontal guide mechanisms 62, 63, 262, 263, 362, 363 Horizontal moving unit 64, 264, 364 Horizontal drive mechanism 68, 268, 368 Vertical drive mechanism 68d, 86 Servo motor 70, 71, 270, 271, 370, 371 Spindle 72, 73, 272, 273, 372, 373 Router bit 75, 76, 275, 276, 375, 376 Horizontal guide shaft 78, 278, 378 Lumpur screw shaft (first horizontal feed shaft)
88, 288, 388 Distance adjusting means 89, 289, 389 Connecting plates 89b, 289b, 389b Slotted screw insertion holes 90, 91, 290, 291 Screws 93, 293 Control units 94, 294 Operation units 103, 203, 303 Bit height switching device

Claims (12)

A printed circuit board dividing apparatus for dividing a printed circuit board into a plurality of pieces by cutting a plurality of connecting portions formed in the printed circuit board,
A substrate support for supporting the printed circuit board;
A plurality of horizontal movement units supported so as to be horizontally movable by a horizontal guide mechanism so as to face the substrate support part;
A plurality of spindles supported by each of the horizontal movement units via a vertical drive mechanism so as to be vertically movable;
A router bit attached to the tip of each spindle and driven to rotate;
A horizontal drive unit for moving at least one of the horizontal movement units in a horizontal direction;
By connecting the horizontal movement unit moved by the horizontal drive unit and another horizontal movement unit so that the distance can be adjusted, the distance between the plurality of spindles supported by each of the plurality of horizontal movement units can be adjusted. An interval adjusting means, and
A printed circuit board dividing apparatus comprising: 2. The printed circuit board dividing apparatus according to claim 1, further comprising: a control unit for controlling a cutting operation of the printed circuit board by each spindle; and teaching data necessary for the cutting operation of the printed circuit board by each spindle; An operation unit for supplying to the operation unit, the operation unit can input teaching data for a spindle provided in a horizontal movement unit moved by the horizontal drive unit, and each cutting position by the spindle The printed circuit board dividing apparatus is characterized in that instruction data for simultaneously cutting other spindles can be selectively input. 2. The printed circuit board dividing apparatus according to claim 1, wherein the horizontal guide mechanism has two parallel horizontal guide shafts, and the horizontal drive unit is provided between the horizontal guide shafts in parallel with the horizontal guide shafts. A printed circuit board dividing apparatus comprising: a feed screw shaft coupled to one of the moving units; and a control motor for rotationally driving the feed screw shaft. 2. The printed circuit board dividing apparatus according to claim 1, wherein the distance adjusting means includes a connecting plate and screws for screwing the connecting plate to the plurality of horizontally moving units adjacent to each other. A printed circuit board dividing apparatus, comprising: a screw insertion hole through which the screw passes, wherein the screw insertion hole extends in a long hole shape along a moving direction of the horizontal movement unit. 2. The printed circuit board dividing apparatus according to claim 1, wherein the interval adjusting means is connected to a control motor provided in one of the plurality of horizontal movement units and another horizontal movement unit, and the control motor. And a feed screw shaft which is rotationally driven by the printed circuit board dividing apparatus. 2. The printed circuit board dividing apparatus according to claim 1, wherein the horizontal guide mechanism and the horizontal drive unit are supported by a horizontal movement slider that is movable in a direction orthogonal to a guide direction of a horizontal movement unit by the horizontal guide mechanism. Printed circuit board dividing apparatus characterized by the above. 2. The printed circuit board dividing apparatus according to claim 1, wherein the horizontal guide mechanism and the horizontal driving unit are supported by a fixed support frame, and the substrate support unit is a horizontal moving unit by the horizontal guide mechanism with respect to the fixed support frame. A printed board dividing apparatus, wherein the printed board dividing apparatus is provided so as to be movable in a direction orthogonal to the guide direction. 7. The printed circuit board dividing apparatus according to claim 6, wherein the substrate support portion is configured to be horizontally rotatable and to stop rotating at every rotation angle of 180 °, and to the rotation table at an angular interval of 180 °. A printed circuit board dividing apparatus, comprising two printed circuit board jigs arranged in the above. 7. The printed circuit board dividing apparatus according to claim 6, wherein the substrate support portion is configured to be horizontally rotatable and to stop rotating at every 90 ° rotation angle, and to the turning table at an angular interval of 90 °. The jigs for the four printed circuit boards are arranged in the above-mentioned manner, and with the rotation stop of the turning table every 90 °, each jig is mounted on the printed circuit board on the jig. On the other hand, the first half division position for dividing and processing about half of the plurality of the connecting portions, the second half dividing position for dividing and processing the remaining half of the connecting portions with respect to the printed circuit board on the jig, and the divided processed print A printed circuit board dividing apparatus configured to sequentially cycle through unloading positions for unloading substrates. 2. The printed circuit board dividing apparatus according to claim 1, wherein the vertical driving mechanism is configured to switch a bit height for switching a height position of the router bit when a total value of a cutting length or a cutting time by the router bit reaches a predetermined value. A printed circuit board dividing apparatus comprising: means. A printed circuit board dividing method for dividing a printed circuit board into a plurality of pieces by cutting a plurality of connection parts formed in the printed circuit board, wherein at least a part of the connection parts in one printed circuit board is formed. A method for dividing a printed circuit board, wherein a plurality of spindles each having a router bit at the tip are divided simultaneously. A printed board dividing method for dividing a printed board into a plurality of pieces by cutting a plurality of connecting portions formed in the printed board with a router bit provided at the tip of a spindle, and supporting the printed board Four jigs are swung in one direction on the swivel table, and the jigs are stopped at every 90 ° rotation angle, and the printed circuit board on the jigs is divided by approximately half at two jig stop positions adjacent to each other. A method for dividing a printed circuit board.

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