KR20040078049A - Perforating device and method for plate-like works - Google Patents

Abstract

PURPOSE: An apparatus and a method for punching a sheet-like work are provided to easily change a jig plate having a reference hole for accurately punching a guide hole through a printed circuit board depending on the type of the printed circuit board. CONSTITUTION: A jig plate(362) having plural reference holes is separably installed on a chuck(36) supporting a sheet-like work(1) and carrying the sheet-like work to a punching part. The function of the jig plate is added to the chuck to avoid separate manufacturing and installation of the jig plate. Since the jig plate is separably installed, the jig plate is changed easily.

Description

Perforating device and method for drilling plate-shaped work {PERFORATING DEVICE AND METHOD FOR PLATE-LIKE WORKS}

Technical Field

TECHNICAL FIELD The present invention relates to a punching device and a punching method of a plate-shaped work, and more particularly, to a punching device and a punching method of a printed board.

Conventional technology

BACKGROUND ART In electronic devices and the like, multilayer printed circuit boards in which a plurality of substrates on which circuit patterns are formed are laminated and adhered are widely used. By the way, if the positions of the circuit patterns deviate when the substrates are stacked, the predetermined functions and performances as the printed circuit boards cannot be exhibited. For this reason, at least two guide holes are prepared at predetermined positions of the respective substrates, and the guide shafts of the jig are inserted into the guide holes to position the respective substrates. Therefore, since the positional accuracy of each board | substrate when laminating | stacking each board | substrate is determined by the positional precision of a guide hole, it is necessary to perforate a highly precise guide hole to a board | substrate.

The perforation of this guide hole is performed by printing an identification mark in advance at the perforation position of the guide hole of a printed board, detecting the center position of this identification mark, and drilling a guide hole in this detection position. . By the way, a multilayer printed circuit board is a composite material which consists of copper foil, glass fiber, resin, etc., and it is the temperature distribution of a heat press at the time of lamination | stacking, heating time, press pressure distribution, the heat deformation of a material, or the exposure position at the time of circuit pattern formation. Under the influence of misalignment and the like, the center of the identification mark is deviated from the design position, and the function of the guide hole may not be completed.

Therefore, the applicant of the present invention proposes the following means for drilling the guide holes (see, for example, Japanese Unexamined Patent Application Publication No. 10-43917 (pages 1 to 5, FIGS. 1 to 6)). In this means, first, a pair of identification marks are printed on a printed board, and a jig board is provided with a pair of reference holes accurately perforated at design dimension intervals. Next, the relative positional relationship between a pair of reference hole and a pair of identification mark is measured, and let the reference position be the center position of the pair of reference hole which correct | amended the deviation of both relative positions. Then, the reference position, that is, the position of the guide hole that has been found in advance is determined from the center position of the pair of reference holes corrected for the deviation of the relative position. And drill a guide hole in this position. By using such means, the guide hole can be drilled with high accuracy at a predetermined position without being affected by deformation of the printed board or the like. 12 shows a conventional jig plate attachment structure. According to this structure, the work table 111 is provided on the base 112 so that it can move freely in the XY direction, and the jig plate 114 is attached to the work table 111 by the hinge 119 freely. Then, the printed circuit board P (plate-shaped workpiece) is sandwiched between the jig plate 114 and the work table 111 to be fixed.

However, in the conventional punching device described above, since the jig plate 114 is attached to the work table 111 on the main body side, the jig plate 114 is replaced according to the type of the printed board P, Peripheral devices such as an imaging camera for detecting an identification mark and a punch for punching in the printed board P interfere with the attachment and detachment of the jig plate 114. there is a problem.

Accordingly, it is an object of the present invention to provide a punching device and a drilling method for a plate-shaped workpiece which can easily replace a jig plate according to the type of plate-shaped workpiece such as a printed board and can improve the punching workability. .

BRIEF DESCRIPTION OF THE DRAWINGS The whole side view of the perforation apparatus of the plate-shaped workpiece to which this invention was applied.

FIG. 2 is an overall front view of the punching device for the plate-shaped workpiece of FIG. 1. FIG.

FIG. 3 is an overall plan view of the drilling device for the plate-shaped workpiece of FIG. 1. FIG.

4 is an enlarged front view of the drilling means;

5 is an enlarged side view of the drilling means;

6 is a conceptual diagram of a plaque plate.

7 is a view showing a planar shape of the jig plate and the suction plate.

8 is a conceptual diagram of a printed board.

9 is a conceptual diagram of another type of printed board.

10 is a block diagram.

11 is an operation graph showing the operation of a punch;

12 is a side view showing the attachment structure of a conventional jig plate.

♠ Explanation of the symbols for the main parts of the drawings.

1, 11: plate-shaped workpiece (printed substrate) 2: drilling means

21: Die 22: Punch

23: drive means 231: servo motor

232: feed screw 3: feed means

36: Chuck 362: jig plate

362e1, 362e2: air outlet groove 362f: reference hole

363 adsorption plate 4: imaging means

5: moving means 52: Y-axis moving plate

54 X-axis Moving Plate 6: Image Processing Means

7: calculation means

In order to solve the said subject, the characteristic of the perforation apparatus of the plate-shaped workpiece which concerns on this invention is providing the jig plate which provided the some reference hole so that attachment or detachment was possible. That is, the present invention is a perforation means for perforating a plate-shaped workpiece provided with a plurality of identification marks, a feeding means for supporting the plate-shaped workpiece and transferring it to the perforation means, an image pickup means, and the perforation means. A perforation apparatus comprising: a moving means for moving relative to a shape work, an image processing means for processing an imaging result of the imaging means, and a computing means for calculating a processing result of the image processing means, wherein the inputting means includes: A jig plate provided with a plurality of reference holes is detachably provided. The relative positions of the reference holes are determined in advance, and the imaging means images the identification marks and the respective reference holes, and the image The processing means obtains the center position of each of the identification marks and the respective reference holes based on the imaging result of the imaging means, The calculation unit calculates a relative positional relationship between the jig plate and the plate-shaped workpiece from the center position of each identification mark and the center position of each reference hole, and the center position of each reference hole and the Based on the relative positional relationship, the puncturing position of the plate-shaped workpiece is calculated, and the moving means moves the puncturing means to the puncturing position.

Moreover, in the punching method of the plate-shaped workpiece | work which concerns on this invention, the drilling means which drills on the plate-shaped workpiece which provided the some mark for identification, the injection means which supports and conveys the said plate-shaped workpiece, and the imaging means, And moving means for moving the punching means relative to the plate-shaped workpiece, image processing means for processing an imaging result of the imaging means, arithmetic means for calculating a processing result of the image processing means, and a plurality of It has a reference plate and a jig plate detachably provided to the said inserting means, and after mounting the said jig plate to the said inserting means, the said plate-shaped workpiece is supported by the said inserting means, and it transfers to the said drilling means, After that, the image pickup means picks up each of the identification marks and the respective reference holes, and based on the imaging result, The image processing means obtains the center positions of the respective identification marks and the respective reference holes, and based on the center position of the respective identification marks and the center positions of the reference holes, the jig plate by the calculation means. And a relative positional relationship with the plate-shaped workpiece, and calculates a punched position of the plate-shaped workpiece based on the center position and the relative positional relationship of the respective reference holes, The punching means is moved, and the punching means is punched into the plate-shaped work by the punching means.

According to the punching device and the punching method of the plate-shaped workpiece according to the present invention, since the jig plate is detachably provided in the feeding means for supporting the plate-shaped workpiece to be transferred to the drilling means, the jig plate is placed at the position where the plate-shaped workpiece is inserted. It can be replaced, and other peripheral devices do not interfere with the replacement of the jig plate, and the replacement of the jig plate can be performed very easily and quickly.

As for the 2nd characteristic of the perforation apparatus of the plate-shaped workpiece | work which concerns on this invention, the puncturing means described in the said characteristic 1 is provided in plurality, These can each move independently of each other by the said moving means, The said imaging means, It is what is provided integrally in each said punching means.

According to such a structure, by providing a plurality of drilling means which can move independently of each other firstly, many guide holes etc. can be drilled simultaneously in a plate-shaped workpiece | work, and a quick drilling operation is attained. Secondly, by providing the imaging means in each of the punching means integrally, it is necessary to eliminate the need for a dedicated moving means for moving the imaging means and to consider the movement of the relative position between each of the punching means and the imaging means. Since the configuration can be simplified, the construction can be simplified and the drilling accuracy is improved.

Embodiment of invention

The structure of the perforation apparatus of the plate-shaped workpiece to which this invention was applied is demonstrated, referring FIGS. First, the overall configuration will be outlined. In this punching device, six punching means (2) for punching into the plate-shaped work (1), a feeding means (3) for supporting the plate-shaped work and conveying to the punching means, and integrally with the punching means, respectively The imaging means 4 and the moving means 5 which can move each punching means independently of each other are provided. In addition, the punching device includes an image processing means 6 for processing the imaging result of the imaging means 4, an arithmetic means 7 for calculating the processing result of the image processing means, and imaging as shown in FIG. The control means 8 which controls the driving of the drilling means 2 and the moving means 5 on the basis of the calculation result of the calculating means 7 while controlling the driving of the means 4 and the feeding means 3. Equipped. Each means is explained in full detail below.

In order to facilitate explanation, explanation will be made from the feeding means 3. As shown in FIG. 1, the feeding means 3 is fixed to the base 100 supporting the punching device, and extends in the horizontal direction 31 (hereinafter referred to as the “Y direction”) in FIG. 1. And an arm 32 that is perpendicular to the horizontal rail (hereinafter referred to as "Z direction"), which is guided by the horizontal rail, and which is movable in the Y direction, and a carrying means 33. The arm 32 and the carrying out means 33 are integrally connected through the connecting member 34 and move integrally in the Y direction. The arm 32 and the carrying out means 33 move in the Y direction by the servomotor 35 and the feed screw (not shown).

At the lower end of the arm 32, a chuck 36 for adsorbing and supporting the plate-shaped work 1 is attached. The chuck 36 has a connecting plate 361 and a jig plate 362 and an adsorption plate 363 which are screwed onto each other in a lower surface of the connecting plate. The connecting plate 361 is lowered and raised in the Z direction through the spring 365 by the air cylinder 364 provided on the arm 32. Movement of the connecting plate 361 in the Z direction is guided by the hollow cylindrical member 366 provided at the lower end of the arm 32.

6 and 7, the detailed structure of the jig plate 362 and the suction plate 363 will be described. 6 is a conceptual diagram of the configuration of the jig plate 362. That is, the jig plate 362 has a rectangular shape in which the lower surface a is flat, and forms a rectangular groove b in the center of the lower surface, and at each of the left and right positions of the rectangular groove, elongated suction grooves d1 and d2, respectively. , d3). The suction groove d1 and the rectangular groove b communicate with each other by the air outlet groove e1, and the suction groove d1 and the suction groove d2 communicate with the air outlet groove e2. (d2) and the suction groove d3 communicate with each other by the air outlet groove e3. At the bottom of the groove of the rectangular groove b, opening holes c communicating with a vacuum pump (not shown) are provided at two left and right positions.

The jig plate 362 is formed with a plurality of reference holes f and a release hole g of a punch of the punching means 2 described later. The suction plate 363 is attached in close contact with the lower surface a of the jig plate 362, and the suction plate 363 has a plate shape at a position corresponding to the rectangular grooves b and the suction grooves d1 to d3 of the jig plate. Many through-holes 326a which adsorb | suck the workpiece | work 1 are provided (refer FIG. 7).

Here, the operation of the jig plate 362 will be described based on FIG. 6. The jig plate 362 is fitted with an adsorption plate 363 to selectively adsorb three kinds of plate-shaped workpieces 11, 12, and 13 having different planar sizes. The plate-shaped workpiece 13 having the largest planar shape is shaped to cover all the suction grooves d1 to d3 and is supported by the suction plate 363 by all of these suction grooves. On the other hand, the plate-shaped workpiece 12 having a smaller planar shape than the plate-shaped workpiece 13 does not have a shape covering the suction groove d3, and the plate-shaped workpiece 12 is adsorbed and supported by the suction plate 363. In the state, the outside air is sucked through the air outlet groove e3 between the suction groove d2 and the suction groove d3. In addition, the plate-shaped workpiece 11 having a smaller planar shape than the plate-shaped workpiece 12 does not have a shape covering the suction grooves d2 and d3, and the plate-shaped workpiece 11 is attracted to the suction plate 363. In the supported state, external air is sucked in through the air outlet groove e1 between the suction groove d1 and the rectangular groove b.

That is, in the state where the plate-shaped workpiece 12 is adsorbed and supported by the suction plate 363, the end face of the plate-shaped workpiece 12 crosses the air outlet groove e3 and passes through the air outlet groove e3. The outside air is inhaled. In addition, in the state where the plate-shaped workpiece 11 is adsorbed and supported by the suction plate 363, the cross-section of the plate-shaped workpiece 11 crosses the air outlet groove e1, passes through the air outlet groove e1, The air will be inhaled. If the groove cross-sectional areas of these air outlet grooves e1 and e3 are made small, the amount of air sucked from the outside is limited because the air outlet grooves become an aperture. Therefore, in order to increase the suction area of the plate-shaped work 1, even when the area of the suction grooves d1 to d3 is enlarged, if the air inflow passages are tightened by the air outlet grooves e1 and e3, the air suction is carried out. Amount can be limited and the fall of the suction force of the plate-shaped workpiece 1 can be suppressed.

By the way, the air outlet grooves e1 and e3 have the same groove cross-sectional area by setting the respective groove widths the same, or the groove width of the inner air outlet grooves of the outer air outlet grooves. It is preferable to set larger than the groove width to set the groove cross section of the inner air outlet groove to be larger than the groove cross section of the outer air outlet groove.

That is, the plate-shaped workpiece 12 is sucked through the rectangular groove b and the suction grooves d1 and d2, and the plate-shaped workpiece 11 is sucked through the rectangular groove b only. And the suction area of the plate-shaped workpiece 11 is smaller by the suction grooves d1 and d2 than the suction area of the plate-shaped workpiece 12. And although the suction area of the plate-shaped workpiece 11 becomes smaller than the suction area of the plate-shaped workpiece 12, the plate-shaped workpiece 11 is smaller than the size of the plate-shaped workpiece 12. Since 11) is light in weight, the plate-shaped work 11 can be adsorbed and supported on the suction plate 363 without being inadequate. Further, if the groove cross-sectional area of the inner air outlet groove is set equal to or larger than the groove cross-sectional area of the outer air outlet groove, the air outlet groove e3 when the plate-shaped workpiece 12 is adsorbed and supported by the adsorption plate 363. The amount of air sucked in through) is not limited by the inner air outlet grooves e2 and e1. Further, the groove cross-sectional area of the inner air outlet groove is equal to the groove cross-sectional area of the outer air outlet groove. If set, the amount of air sucked through the air outlet groove e3 when the plate-shaped workpiece 12 is sucked and supported by the suction plate 363 and the air is discharged when the plate-shaped workpiece 11 is sucked and supported by the suction plate 363 The amount of air sucked through the groove e1 can be made the same, and the suction support state of the plate-shaped workpieces 11 and 12 can be easily detected by a single pressure sensor.

The air outlet grooves e1, e2, and e3 are not limited to one each, but may be provided in plurality, as shown in FIG. In this case, if the cumulative groove cross-sectional area of the inner air outlet groove is set equal to or larger than the cumulative groove cross-sectional area of the outer air outlet groove, the same effect as in the above-described case can be achieved.

7 shows an example of the jig plate 362 and the suction plate 363 which are actually used. In addition, the same part as shown in FIG. 6 uses the same code | symbol. The jig plate 362 also serves as a reference hole f, a release hole for punching the punching means 2 described later, and a through hole for imaging the identification mark displayed on the plate-shaped work 1 described later. An elongated through hole g and an elongated through hole h dedicated for capturing the mark for identification displayed on the plate-shaped work 1 are provided. The suction plate 363 has a release hole larger than the reference hole f and the long through hole g and h at a portion corresponding to the reference hole f and the long through hole g and h of the jig plate 362. While being formed, a plurality of through holes 362a are provided at positions corresponding to the grooves (illustrated by broken lines) provided in the jig plate 362.

The jig plate 362 and the suction plate 363 are detachably attached to the connecting plate 361 by the bis 367. Therefore, according to the shape and type of the plate-shaped workpiece 1, the position of the long through holes g and h, the reference holes f, and the like can be easily replaced with the other jig plate 362 or the suction plate 363. The jig plate 362 and the suction plate 363 are not limited to the screw 367, and can be detachably attached to the connecting plate 361 by various means. For example, the connecting plate 361 is provided with an air chuck engaged with the jig plate 362 and the suction plate 363 by a driving means such as an air cylinder, and the jig plate 362 and the suction plate ( When the structure 363 is detachably engaged with the connecting plate 361, the jig plate 362 and the suction plate 363 can be easily attached and detached, and the jig plate 362 and the suction plate 363 can be attached and detached. This improves.

Thus, in the jig plate 362, the rectangular groove b and the suction grooves d1, d2, d3 are formed in the lower surface a, and the chuck 36 which adsorbs and supports a plate-shaped workpiece | work together with the suction plate 363 is carried out. Since it also has a function as, it is not necessary to provide a dedicated plate for adsorbing and supporting the plate-shaped work 1 together with the adsorption plate 363, so that the number of parts is reduced and low cost. In addition, the jig plate 362 may be provided not only in the function as the chuck 36 which adsorbs-supports a plate-shaped workpiece | work together with the suction plate 363, but may be provided in the chuck 36 as a dedicated component.

Next, the carrying out means 33 will be described.

The carrying out means 33 has the structure which can adsorb | support the plate-shaped workpiece | work 11, 12, 13, and since the basic structure is the same as that of the feeding means 3, description is abbreviate | omitted.

Moreover, the carrying out means 33 should just be a structure which can adsorb | support the plate-shaped workpiece | work 11, 12, 13, and replaces the jig plate 362, and long through hole g and h and reference hole f The board | substrate exclusively for adsorption which abbreviate | omitted can be used.

Next, referring to FIGS. 1 to 5, six drilling means 2 for drilling into the plate-shaped work 1, an imaging means 4 integrally provided in the drilling means, respectively, The moving means 5 which can move a drilling means independently of each other is demonstrated. The drilling means 2 is provided with six pieces in total by the three pieces on both sides of the work table 101 fixed to the upper part of the base 100. As shown in FIGS. 2 and 3, each of the drilling means 2 includes a Y-axis moving plate 52 provided freely movable in the Y-axis direction through a bearing 51 on the base 100. On the Y-axis moving plate, the X-axis moving plate 54 is provided freely provided in a left-right direction (hereinafter referred to as "X-axis direction") through a bearing (not shown).

The Y-axis moving plate 52 and the X-axis moving plate 54 move in the Y direction and the X direction, respectively, by the feed screws 56 and 57 which are rotationally driven by the servomotors 53 and 55. That is, the servomotor 55 is fixed to the Y-axis moving plate 52, and the feed screw 56 is rotationally driven through the coupling by the servomotor. The nut 57 screwed to the feed screw 56 is fixed to the X-axis moving plate 54, and moves in the X direction by the rotation of the feed screw 56. In addition, the servo motor 53 is fixed to the base 100, and the feed screw 57 is driven to rotate through the coupling (not shown) by the servo motor. A nut (not shown) screwed to the feed screw 57 is fixed to the Y-axis moving plate 52, and moves in the Y direction by the rotation of the feed screw 57.

The drilling means 2 is attached to the X-axis moving plate 54. The puncturing means 2 will be described with reference to FIGS. 4 and 5. The drilling means 2 has a die 21 mounted on the mount 24 so as to be replaceable, and a punch 22 facing the die, and the punch moves up and down (Z direction), It drills into the plate-shaped workpiece | work 1 sandwiched in between. The punch 22 moves up and down by the drive means 23. The drive means 23 is screwed to the servo motor 231 fixed to the mount 24, the feed screw 232 which is rotationally driven through the coupling 233 by this servo motor, and is screwed to this feed screw for conveyance. The nut 234 moves up and down by the rotation of the screw.

The guide member 235 is fixed to the nut 234, and this guide member slides with the guide rod 242 provided in the mount 24, and moves up and down. One end of the swing lever 236 is rotatably connected to the long hole groove provided at the left end of the guide member 235 via the point pin 236a. The rocking lever 236 swings around the rotation shaft 237, and the punch support member 238 is rotatably connected to the other end of the rocking lever via a point pin 236b. In addition, the punch support member 238 is guided by the vertical protrusion 241 provided on the mount 24, and moves the punch 22 mounted so as to be replaceable at the distal end.

In addition, the position of the rotating shaft 237 which supports the rocking lever 236 is made to be close to the position which connects with the punch support member 238. Therefore, according to the principle of the lever, the force of the guide member 235 moving up and down by the servomotor 231 can be increased, and the punch support member 238 can be moved up and down. Moreover, since the distance of the vertical movement of the punch support member 238 by the vertical movement of the guide member 235 can be made small, it becomes easy to control the vertical movement position of this punch support member more finely.

Next, the structure of the imaging means 4 provided integrally with the punching means 2 is demonstrated. As shown in FIG. 4, the imaging means 4 is attached to the mount 24 so as to be parallel to the punch support member 238. The imaging means 4 is a so-called two-dimensional CCD camera, which picks up the plate-shaped work 1 to be punctured by the drilling means 2 and transmits the imaging result to the image processing means 6 (shown in FIG. 10). do. The relative position between the imaging means 4 and the punch 22 is accurately measured in advance, and even if the punching means 2 moves in the XY direction by the movement means 5, the position of the imaging means is referenced. In this way, the position of this punch can always be calculated correctly.

Next, the operation of this puncturing means will be described. As an example of the plate-shaped work 1, the guide hole 11b which uses the printed board 11 as shown in FIG. 8, and determines the relative position with the circuit pattern 11a formed in this printed board. The case of puncturing will be described. In addition, two circular identification marks 11c for determining the puncturing position of the guide hole 11b are printed on the printed board 11 as described later. First, in the punching operation, the jig plate 362 and the suction plate 363 corresponding to the punching position of the printed board 11 as shown in Figs. 6 and 7 are selected, and these are connected to the connecting plate 361. Attach. At this time, when the input means 3 is moved to the input position of the left end by the servo motor 35, and the jig plate 362 and the suction plate 363 are attached to the connecting plate 361 at this position, The device, for example, the puncturing means 2 and the imaging means 4 do not interfere with the attachment and detachment of the jig plate 362 and the suction plate 363, and facilitates the jig plate 362 and the suction plate 363. Can be removed.

Next, as shown in FIG. 1, the input means 3 is moved to the input position of the left end by the servomotor 35, and the printed circuit board 11 is suction-supported by the chuck 36 at this position. At this time, when inserting the printed circuit board 11 into the position opposite to the punching means 2 by the feeding means 3 as described later, the two identification marks 11c of this printed board will be punched. The printed circuit board 11 is suction-supported by the chuck 36 in the state which positioned the chuck 36 and the relative position of this printed board so that it may enter into the imaging area of the two imaging means 4 provided in the means.

That is, the puncturing position of the guide hole 11b to the printed circuit board 11 is the center of the two identification marks 11c picked up by the imaging means 4, and 2 arrange | positioned at the jig plate 362, as mentioned later. It calculates from the relative position with the center of the two reference | standard holes f. Therefore, when putting the printed board 11 in the position which opposes the punching means 2, so that two identification marks 11c may not go out of the range of the imaging area of the imaging means 4 waiting by the predetermined position, It is necessary to determine the relative position between this printed board and the chuck 36 in advance, and to support the suction.

The following means will be described as an example of the means for determining the relative position of the printed board 11 and the chuck 36. That is, as shown in FIG. 1, the mounting base 102 which sets the printed board 11 is provided under the chuck 36, and two CCD cameras (not shown) are arrange | positioned above this mounting base. do. The CCD camera passes through the long through hole g or h of the jig plate 362 to image the two identification marks 11c of the printed board 11, respectively, and the center position thereof is, for example, a + character symbol. To display on the monitor screen. The monitor screen displays, as a circle, the imaging regions of the two imaging means 4 whose standby positions are determined by a computer corresponding to each type of the printed board 11. Therefore, while looking at the monitor screen, the relative position of both can be positioned by manually moving the printed board 11 on the mounting table 102 so that the center of the + symbol enters the imaging area indicated by the circle.

When the printed circuit board 11 on the mounting table 102 is set at the relative position described above, the chuck 36 is lowered by the cylinder 364 to adsorb and support the printed board 11, and the chuck is again replaced. Rising by the cylinder And the arm 35 moves to the position which opposes the puncturing means 2. When it moves to the position opposite to the drilling means 2, the chuck 36 is lowered by the cylinder 364, and on the work table 101 provided with the printed board 11 which adsorbed and supported on the base 100 upper part. Install on. In addition, since the chuck 36 presses the printed board 11 on the work table 101 through the spring 365, excessive pressure and shock can be avoided.

Next, the positioning method of the punching means 2 for punching the guide hole 11b in the printed circuit board 11 is demonstrated. This drilling position is determined based on the following two basic ideas. First, the guide hole 11b of the printed circuit board 11 punctures with respect to the center position of the two reference holes f among the reference holes f formed in the jig plate 362 correctly. Second, the relative position between the circuit pattern 11a printed on the printed circuit board 11 and the guide hole 11b is made equal to the relative position in the design as much as possible.

As described above, the guide holes 11b are drilled based on the two reference holes f in the reference holes f provided in the jig plate 362. That is, the identification mark 11c is printed on the printed circuit board 11 in the circuit pattern 11a and the design relative position with respect to this circuit pattern, and the guide hole 11b is located in the center position of this identification mark 11c. Although a means for drilling holes is conceivable, in this means, when the relative position of the identification mark 11c is shifted by the printing process or the change in air temperature at the time of drilling, the guide hole 11b can be drilled at a position determined by design. There will be no.

As another means, two identification marks 11c are provided on the printed circuit board 11, the design perforation coordinates are determined based on this identification mark, and the guide hole 11b is drilled in this coordinate. I think how. However, also in this method, when the space | interval of two identification marks 11c shifts by the above-mentioned temperature change etc., the design perforation coordinates based on two identification marks also shift | deviate. Therefore, first, it is necessary to correctly correct the space | interval of two identification marks 11c to a design value. For this reason, in the jig plate 362, the two guide holes f corresponding to the design space | interval of the two identification marks 11c as the reference hole f are provided, and the guide hole exactly matched to this space | interval. The puncturing reference position in (11b) is set. Next, in the case where the printed circuit board 11 is suction-supported by the chuck 36, a shift of the relative position in the XY direction and the rotation direction occurs in the printed board and the chuck, so that The deviation must be corrected.

Therefore, based on the above idea, the perforation of the guide hole 11b to the printed circuit board 11 is performed as follows. In the position where the printed board 11 was pressed to the work table 101 as mentioned above, it passes through the long through-hole g or h of the jig plate 362, and in the imaging area of the two imaging means 4, Two identification marks 11c are each entered. Therefore, the imaging device 4 picks up two identification marks 11c, and transmits the imaging result to the image processing means 5. Next, as for the movement means 5 of the imaging device 4, the relative position with the punching means 2 is known beforehand, and image | photographs in the position of the two reference holes f provided in the jig plate 362. The apparatus 4 is moved, two reference holes are imaged, and the imaging result is transmitted to the image processing means 5. In addition, when this identification mark is printed on the printed circuit board 11 so that two identification marks 11c and the reference hole f opposed to it may simultaneously enter the imaging area of the imaging device 4, It is enough for one imaging.

Next, the image processing means 5 obtains the XY coordinate of the center position of the two identification marks 11c and the two reference holes f from the picked-up image, and calculates the result of the calculation means 7 Send to And the calculating means 7 compares the straight line which connected the XY coordinate of each center position, and calculates the crossing angle which both cross. In other words, rotational misalignment occurs at the relative position between the printed circuit board 11 and the reference hole f provided in the jig plate 362 by the intersection angle. Therefore, the calculating means 7 next calculates the XY coordinates of the center coordinates (centers) of the straight lines connecting the respective center positions, respectively, and the relative of the center coordinates (centers) of both. Calculate the positional relationship.

As mentioned above, the reference position for drilling the guide hole 11b on the printed board 11 can be calculated | required. That is, this reference position sets the center coordinates of the two reference holes f of the jig plate 362 apart from each other by the relative positional relationship between the above-described center coordinates (center). The coordinates are rotated by the intersection angle. In other words, the coordinates refer to the center positions of the two reference holes f provided in the jig plate 362 at the center positions of the two identification marks 11c provided on the printed board 11. It becomes the center position of a reference hole at the time of matching and rotating by the crossing angle.

By the way, in the method of obtaining the reference position for drilling the guide hole 11a in the printed circuit board 11 from the above two identification marks 11c and two reference holes f, identification with respect to this reference position is carried out. The relative positional relationship of the dragon mark is obtained only in one direction (X direction or Y direction). Therefore, when obtaining the relative positional relationship of both more precisely, the deviation of the relative position of the direction orthogonal to two identification marks may be correct | amended. This method is described below.

As shown in FIG. 9, the mark 11c for identification is provided in the printed board 11 at four surroundings. In the jig plate 362, four reference holes f are also provided at positions corresponding to design positions of the four identification marks 11c. The four identification marks 11c have a predetermined relative positional relationship with the circuit pattern printed on the printed board 11. And the imaging means 4 image | photographs the four identification marks 11c and the reference | standard hole f, respectively through the long through hole g or h of the jig plate 362, From this imaging result, The image processing means 6 finds each center position, and from this center position, the calculating means 7 calculates the center position of both.

Next, the calculating means 7 moves the center position of the four reference holes f to the center position of the four identification marks 11c, and the center position of both. To match. And the calculating means 7 calculate | requires four sides which consist of four reference | standard holes f, and four sides which consist of four identification marks 11c, calculates the crossing angle of the four corresponding sides, respectively, and the average value Obtain As mentioned above, the relative positional relationship of the four identification marks 11c which considered the shift | offset | difference of two directions of an X-axis direction and a Y-axis direction with respect to four reference holes f is revealed.

That is, the design positions of the four identification marks 11c provided on the printed board 11, that is, the original four positions which are not subjected to temperature deformation, etc., are the centers of the four reference holes f. The position becomes the center position of these four reference holes at the time of rotating around the center by the average value of the crossing angle of four sides mentioned along with the center position of the four identification marks 11c. Therefore, if any two reference holes are selected from four reference holes f, the center coordinates of these two reference holes become two reference positions for drilling the guide hole 11b in the printed board 11.

By the above, if the two reference positions for drilling the guide hole 11a to the printed circuit board 11, ie, the center positions of the two reference holes f which moved the XY coordinate, are determined, the calculation means 7 Based on the center positions of these two reference holes f, the puncturing position of the guide hole 11a at the relative position determined in the design from the center position of this reference hole is calculated. And the movement means 5 moves the punch 22 of the punching means 2 with this computed XY coordinate.

Next, the perforation to the printed circuit board 11 by the perforation means 2 is demonstrated. The punch 22 of the punching means 2 is an initial position which does not interfere with the movement of this chuck until the printed board 11 is adsorbed and supported by the chuck 36 and is installed on the work table 101 (FIG. 11). Reference). And the printed board 11 is inserted between the punch 22 and the die 21, and the chuck 36 which adsorbs-supports the printed board 11 is pressed on the work table 101. As shown in FIG.

Subsequently, the servomotor 231 of the drilling means 2 rotates the feed screw 232 to lower the punch 22 through the swing lever 236, the punch support member 241, and the like. Is moved from the initial position to the standby position (see FIG. 11). This standby position is the upper surface of the jig plate 362 of the chuck 36 in which the punch 22 is on the work table 101 when the punching means 2 is moved to the position where the guide hole 11a is drilled. It is set to a height position that does not interfere with. Therefore, the punch 22 can move freely on the jig plate 362 in the XY direction, and the punch stroke (the movement distance from the standby position to the position where the punch 22 punctures the printed circuit board 11) 11) can be minimized, and the drilling operation can be performed quickly.

Then, when the six punching means 2 move to the XY coordinate position where the moving means 5 drills the guide hole 11a in each printed board 11, the servomotor 231 rotates. Guide holes are drilled into this printed board. In addition, the guide member 235 which moves up and down by the rotation of the servomotor 231 is provided with the sensor 25 which detects the Z direction position of this guide member, as shown to FIG. 4 and FIG. The guide member 235 rises excessively, so that excessive force is not produced in the punch 22.

In addition, as already described with reference to FIG. 7, the release plate g of the punch 22 is provided in the jig plate 362 and the suction plate 363, and the perforation of the guide hole 11a of the printed board 11 is performed. The position is arrange | positioned so that it may exist in this release hole position. In addition, the rotational speed of the servomotor 231 which moves the punch 22 up and down can be changed suitably by the material of the printed board 11, the size of the guide hole 11a, etc. FIG. For example, for the flexible printed circuit board 11, the punching speed is increased so that sagging, burr, etc. do not occur, and for the printed circuit board to which a weak (soft) printed board, copper foil, or the like is attached, The punching speed from the standby position to the punching position (see FIG. 11) can be slowed so that peeling or the like does not occur. Further, by controlling the rotational speed of the servomotor 231, the punch 22 is moved from the initial position to the standby position regardless of the punching speed from the punch position to the punching position (see FIG. 11). And high speed driving from the puncture position to the initial position, thereby reducing the puncture time and improving workability (see FIG. 11). In addition, by controlling the drive of the servomotor 231, the standby position of the punch 22 can be changed, and the standby position of the punch 22 is optimally adjusted depending on the speed of the punch, the thickness of the printed board 11, and the like. Can be set to a location. In addition, since the punch 22 is driven by the servomotor 231 through the feed screw mechanism, the standby position of the punch 22 can be finely adjusted, which is optimal for drilling of a thin plate-like work such as a printed board.

When the drilling of the guide hole 11a is completed, the punch 22 is driven up by the servomotor 231 to an initial position (shown in FIG. 11) that does not interfere with the movement of the chuck 36. Then, the chuck 22 stops the suction of the printed board 11, leaves the printed board on the work table 101, is driven up by the cylinder 364, and suction-supports the next printed board. In order to return to the original position. When the chuck 36 moves to its original position, the carrying out means 33 interlocked with the arm 35 connected to the chuck moves to a position opposite to the printed board 11 left on the work table 101. Then, the printed circuit board is adsorbed and supported by the same means as this chuck. And when the chuck 36 moves the next printed board 11 again to the position which opposes the punching means 2, the carrying out means 33 moves out the printed board on which the drilling process was completed.

In addition, the operation | movement of each movable structural member of the drilling apparatus demonstrated above, ie, the position, timing, etc. of an operation start and an operation end, is previously performed by the control means 8 (shown in FIG. 10) accompanying the calculation means 7. It controls according to the kind of printed board 11 recorded. In addition, the attachment position of each structural member is provided with the means which can be fine-adjusted as needed by an adjustment screw. The imaging means 4 is not limited to being provided integrally with the punching means 2, and may be provided independently. In this case, a moving means for moving the imaging means 4 in the XY direction is separately provided. In addition, the vertical movement of the punch 22 is not limited to the case where it is driven by the servomotor 231, the feed screw 232, the rocking lever 236, etc., and a gear mechanism and a rack pinion (rakc and pinion) May be driven using a mechanism or the like.

In addition, when the mark 11c for identification provided in the printed circuit board 11 is hidden on the lower surface of the jig plate 362, it uses the X-ray camera for the imaging means 4, and calculate | requires the position by perspective. You may also do it. In addition, the above-mentioned puncturing apparatus can also be used as a determination means of confirming the accuracy of the position of the guide hole 11a etc. which were already drilled in the printed board 11.

As described above, according to the punching device and the punching method of the plate-shaped workpiece according to the present invention, since the jig plate is detachably provided in the feeding means for supporting the plate-shaped workpiece to be transferred to the punching means, it is possible to replace the jig plate. It is extremely easy and can be done quickly.

In addition, when a plurality of drilling means movable independently of each other are provided and the imaging means are integrally provided in each of the drilling means, a plurality of guide holes and the like can be simultaneously drilled in the plate-shaped work, thereby enabling a quick drilling operation. As a result, a dedicated moving means for moving the image pickup means becomes unnecessary, and furthermore, it is not necessary to consider the movement of the relative position between each of the punching means and the image pickup means. Accuracy is improved.

Claims (3)

Perforation means for perforating a plate-shaped workpiece provided with a plurality of identification marks, input means for supporting the plate-shaped workpiece and transferring the plate-shaped workpiece, the imaging means, and the perforation means relative to the plate-shaped workpiece. A perforation apparatus for a plate-shaped work comprising moving means for moving, an image processing means for processing an imaging result of the imaging means, and a computing means for calculating a processing result of the image processing means, The injection means is provided with a jig plate provided with a plurality of reference holes in a detachable manner, The relative positions of the reference holes are known in advance, The imaging means captures the identification marks and the respective reference holes, The image processing means obtains the center position of each of the identification marks and the respective reference holes based on the imaging result of the imaging means, The calculating means calculates a relative positional relationship between the jig plate and the plate-shaped workpiece from the center position of each identification mark and the center position of each reference hole, and the center position of each reference hole and the Based on the relative positional relationship, the puncturing position of the plate-shaped work is calculated, The moving means moves the drilling means to the drilling position, the drilling apparatus of the plate-shaped workpiece, characterized in that. The method of claim 1, The drilling means is provided in plural, and these can be moved independently of each other by the movement means, The imaging device is provided in each of the punching means integrally, the punching device of the plate-shaped workpiece, characterized in that. Perforation means for perforating a plate-shaped workpiece provided with a plurality of identification marks, input means for supporting the plate-shaped workpiece and transferring the plate-shaped workpiece, the imaging means, and the perforation means relative to the plate-shaped workpiece. A moving means for moving, an image processing means for processing the imaging result of the imaging means, a calculating means for calculating the processing result of the image processing means, and a plurality of reference holes, and detachable from the input means Has a prepared jig plate, After mounting the jig plate on the feeding means, the plate-shaped work is supported by the feeding means and transferred to the drilling means, Thereafter, each of the identification marks and the respective reference holes is picked up by the image pickup means, and the center positions of the respective identification marks and the respective reference holes are picked up by the image processing means based on the image pickup result. The relative positional relationship with the plate-shaped workpiece on the jig plate is calculated by the calculating means based on the center position of the respective identification marks and the center position of the respective reference holes, and the center position of the respective reference holes. Calculates the puncturing position of the plate-shaped work based on the relative position relationship and moves the puncturing means by the moving means to the puncturing position, and punctures the platy work by the puncturing means at the puncturing position. The punching method of the plate-shaped workpiece characterized by the above-mentioned.