JP2006297521A - Apparatus for machining groove on plate material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for machining a groove on a plate material, which apparatus can prevent a trouble caused by the deflection of a workpiece in machining the groove. <P>SOLUTION: The apparatus for machining the groove on the plate material comprises a workpiece carrying means 2 for carrying the plate workpiece W by gripping it so as to pass a machining position Pp toward a downstream side, a groove forming means 5 having a cutter 4 which can move to the machining position Pp in the direction nearly perpendicular to the carrying direction of the workpiece W, and a workpiece supporting means 6 for supporting the workpiece W in the neighborhood of the machining position Pp, wherein the groove is formed on one surface or both surfaces of the workpiece W by stopping the carrying operation by the workpiece carrying means 2 for every time that machining positions on the workpiece W coincide with the machining position Pp and by operating the groove forming means 5. The workpiece carrying means 2 comprises a gripping means 11 for gripping the workpiece W along the edge portion on the upstream side of the carrying direction, a carriage driving means 12 for driving the gripping means 11 in the carrying direction, and a carriage supporting means 13 for supporting the workpiece W upward at the position between the gripping means 11 and the machining position Pp. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a groove processing apparatus for a plate material for dividing and forming other grooves on one or both surfaces of a plate material such as a printed circuit board.

  For example, when manufacturing a printed circuit board, it is common to form a plurality of sets of circuits on a large substrate and then divide the circuit board into individual circuits to generate individual printed circuit boards. In order to easily and reliably divide the large substrate, a V-groove is formed on one or both sides of the substrate along the dividing position. As described above, for example, a device described in Patent Document 1 is known as a groove processing apparatus that performs a groove processing for division on a plate material such as a printed circuit board.

  The grooving apparatus described in Patent Document 1 is provided on the upstream side of the processing position and has a workpiece insertion means for inserting a thin plate-like workpiece such as a printed circuit board toward the processing position, and a workpiece on the downstream side of the processing position. A workpiece conveying means that is provided so as to be movable in the conveying direction and feeds the downstream end side of the workpiece to the downstream side, and a grooving cutter that is arranged so as to be movable in a direction perpendicular to the conveying direction with respect to the machining position And clamping means for clamping the workpiece in the vicinity of the upstream side of the machining position, workpiece conveying means, and a conveyor device disposed below the machining position.

The grooving apparatus holds the workpiece along the surface of the workpiece in a state where the workpiece is clamped by the workpiece conveyance means on the downstream end side in the conveyance direction and further clamped from both sides by the clamping means in the vicinity of the upstream side of the machining position. Then, the process of forming linear grooves on both surfaces of the workpiece by moving in a direction orthogonal to the conveying direction is performed a plurality of times while conveying the workpiece downstream by a predetermined distance by the workpiece conveying means, and the processed The workpiece is discharged downstream by a conveyor device.
JP 2002-166394 A

  The above-described conventional groove processing apparatus is configured to sandwich the downstream end side of the workpiece in the conveyance direction by the workpiece conveyance means and convey the workpiece by a predetermined distance to the downstream side every time the groove is processed. Since there is a space for dropping the processed workpiece onto the conveyor device between the machining position and the machining position, the workpiece during grooving is only at two locations, the downstream end in the transport direction and the vicinity of the machining position. Will be supported.

  As a result, when grooving is repeated for one workpiece and it is gradually conveyed downstream, the distance between the two support positions for the workpiece gradually increases, which causes the workpiece to bend. For example, there is a possibility that a defect such as a decrease in the groove processing accuracy or a crack in the already formed V groove may occur.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a plate material grooving apparatus capable of preventing problems caused by bending of a workpiece during grooving.

  The present invention includes a workpiece conveying means 2 that grips a workpiece W made of a plate material and conveys it downstream so as to pass a predetermined machining position Pp, and a conveyance guide surface by the workpiece conveying means 2 with respect to the machining position Pp. A groove forming means 5 having a cutter 4 movable in a crossing direction substantially perpendicular to the conveying direction along S, and a processing support means 6 for supporting the workpiece W in the vicinity of the processing position Pp, One or both sides of the workpiece W by stopping the conveying operation by the workpiece conveying means 2 and operating the groove forming means 5 each time one or a plurality of machining target positions on the workpiece W coincide with the machining position Pp. In the groove processing apparatus for a plate material configured to form a groove in the workpiece, the workpiece transfer means 2 holds the workpiece W along the upstream edge Wb in the transfer direction. , A transport driving means 12 for driving the gripping means 11 in the transport direction, and a transport support means 13 for supporting the workpiece W upward between the gripping means 11 and the processing position Pp. .

  According to the present invention, the workpiece W at the time of grooving is supported in the vertical direction by the machining support means 6 in the vicinity of the downstream side of the machining position Pp and by the gripping means 11 at the upstream edge Wb in the transport direction, respectively. Since the space between the processing position Pp and the upstream edge Wb in the transport direction is supported from the lower side by the transport support means 13, the work W being processed does not bend at the intermediate position. Problems such as a decrease in groove processing accuracy due to W bending cannot occur.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 7 illustrate a first embodiment in which a plate material groove processing apparatus according to the present invention is applied to a printed circuit board groove processing apparatus.

  The groove processing apparatus 1 according to the present embodiment is for forming a dividing groove on both surfaces of a work W made of a printed circuit board, and passes through a processing position Pp as shown in FIGS. A workpiece conveying means 2 for conveying the workpiece W, a workpiece supply means 3 for supplying an unmachined workpiece W to the workpiece conveying means 2 side, and a conveyance guide surface S by the workpiece conveying means 2 with respect to the processing position Pp. Further, a groove forming means 5 having a cutter 4 that can reciprocate in a crossing direction (indicated by an arrow y in FIG. 1) perpendicular to the conveying direction (indicated by an arrow x in FIG. 1), and a downstream side in the conveying direction of the processing position Pp. A single machine base 8 is provided with a processing clamp (processing support means) 6 that supports the work W in the vicinity and a discharge means 7 that discharges the work W after the grooving processing to the downstream side.

  In the present embodiment, one or a plurality of grooves are formed in parallel with the workpiece W in the conveyance direction downstream side edge Wa.

  The work transport means 2 includes a gripping means 11 for gripping the work W along the upstream edge Wb in the transport direction, a transport driving means 12 for driving the gripping means 11 in the transport direction, a gripping means 11 and a processing position Pp. And a workpiece conveyance table (conveyance support means) 13 that supports the workpiece W upward.

  The work transfer table 13 is fixed on the first mounting table 14 of the machine base 8, and as shown in FIGS. 1, 2, 4, 4, 5, etc., a rectangular plate-like base plate 15 and the base plate 15 are provided. A plurality of, for example, four support legs 16 for supporting the plate 15 substantially horizontally on the first mounting base 14 and a plurality of guide protrusions 17 disposed on the base plate 15 along the conveying direction are provided. ing.

  As shown in FIG. 2, the guide protrusion 17 is formed in, for example, a flat cross-sectional rectangular shape having a smaller height dimension than the width dimension, and the like in the crossing direction along the upper surface side of the base plate 15. They are arranged at intervals and are fixed on the base plate 15. The upper surface side of the guide protrusion 17 constitutes a transport guide surface S when the work W is sent in the transport direction, and an unprocessed work W is placed on the upstream portion of the transport guide surface S by the work supply means 3. A workpiece supply position Ps to be supplied is provided, and a processing position Pp is provided in the conveyance crossing direction along the downstream end side of the conveyance guide surface S. Further, a guide groove 18 is provided between the two adjacent guide protrusions 17 to guide the gripping means 11 along the transport direction.

  The gripping means 11 is composed of a plurality of work clamps 21 arranged in the conveyance crossing direction, and is fixed to a cross bar 22 arranged above the conveyance guide surface S in the conveyance crossing direction as shown in FIG. Has been.

  The cross bar 22 is supported by a pair of transport rails 23a and 23b arranged on the left and right sides of the work transport table 13 in the transport direction so as to be movable in parallel along the transport direction.

  Each of the work clamps 21 is formed in an elongated shape along the transport direction, and a clamp claw portion 24 that grips the upstream edge Wb in the transport direction of the work W is provided at the downstream end of the transport direction. The cross bar 22 is fixed to, for example, the lower surface side at a fixing portion 25 formed at the upstream end portion in the transport direction.

  As shown in FIG. 7, the clamp claw portion 24 includes, for example, a movable claw 24a and a fixed claw 24b. The upper claw 24a is, for example, a claw such as an air cylinder with respect to the lower fixed claw 24b. By moving in parallel up and down by driving the opening / closing drive means 21a, it is possible to switch between a “gripping state” in which the workpiece W is gripped and a “grip releasing state” in which the gripping of the workpiece W is released.

  The movable claw 24a may be swung around the horizontal axis. Further, the movable claw 24a and the fixed claw 24b may be arranged either on the top or bottom, and both the top and bottom may be movable claws.

  The work clamps 21 are arranged in a line in the conveyance crossing direction so as to correspond to the guide grooves 18, respectively, and the lower sides thereof are fitted into the guide grooves 18 from the upper side so as to be slidable along the conveyance direction. Yes. In the present embodiment, six guide grooves 18 are formed by the seven guide protrusions 17, and six work clamps 21 are provided corresponding to the six guide grooves 18. However, the number of the work clamps 21 is not limited to this.

  The conveyance drive unit 12 is configured to rotate the ball screw 26 around its axis, a ball screw 26 arranged along the conveyance direction, a nut 27 fixed to, for example, the cross bar 22 on the gripping unit 11 side and screwed into the ball screw 26. And the servo motor 28 is configured to reciprocate the gripping means 11 along the transport direction by rotating the ball screw 26 forward and backward by the servo motor 28.

  The ball screw 26 and the servo motor 28 are disposed, for example, between the workpiece transfer table 13 and the transfer rail 23a on one side, and are supported on the first mounting base 14.

  A workpiece positioning means 31 is provided on the workpiece conveyance table 13 on the downstream side of the workpiece supply position Ps. This workpiece positioning means 31 is brought into contact with the downstream edge Wa of the workpiece W in the conveyance direction when the gripper 11 grips the upstream edge Wb in the conveyance direction of the workpiece W supplied on the workpiece supply position Ps. Positioning blocks 32 arranged in the crossing direction of conveyance as shown in FIGS. 1, 2, and 5-7. A positioning connecting plate 33 for connecting the positioning blocks 32, a lifting guide 34 for supporting each positioning block 32 with respect to the work transfer table 13 via the positioning connecting plate 33, and a positioning connecting plate 33. And positioning cylinders 35 that drive each positioning block 32 up and down.

  A plurality of, for example, two elevation guides 34 are provided in the conveyance crossing direction corresponding to the downstream side of the workpiece supply position Ps, and project downward from, for example, the lower surface side of the base plate 15 on the workpiece conveyance table 13 side. Yes.

  The positioning connecting plate 33 is formed long in the crossing direction of conveyance, for example, is disposed substantially horizontally below the base plate 15 of the work conveyance table 13 and is supported by a lifting guide 34 so as to be movable in the vertical direction.

  For example, the same number of the positioning blocks 32 as the guide grooves 18 are provided, and are arranged so as to be vertically movable in mounting holes 36 formed in the base plate 15 of the work transfer table 13 corresponding to the respective guide grooves 18. The positioning claw 37 is provided on the upper end side, and is fixed to, for example, the upper surface side of the positioning connecting plate 33 on the lower end side.

  The positioning claw 37 is attached to the upper end side of the positioning block 32 so as to be movable in the conveying direction toward the upstream side in the conveying direction, and is elastically biased toward the upstream side in the conveying direction by an urging means 38 such as a compression spring. Yes.

  A plurality of, for example, two positioning cylinders 35 are provided in the conveyance crossing direction corresponding to the downstream side of the workpiece supply position Ps. For example, the main body side is fixed to the lower surface side of the positioning connecting plate 33 and the drive shaft side is the base plate 15. The positioning block 32 is moved up and down along the elevating guide 34 by moving the positioning connecting plate 33 along the elevating guide 34 so that the positioning claw 37 protrudes above the conveying guide surface S and the conveying guide. It is possible to switch to a “conveyance allowable state” in which the surface S is retracted below the surface S.

  The workpiece supply means 3 is for supplying the workpieces W on the input lifter 41 arranged on the side of the workpiece conveyance table 13 one by one to the workpiece supply position Ps on the workpiece conveyance table 13. 2, as shown in FIG. 4 to FIG. 6, a support frame 43 erected on a second mounting table 42 that is lower than the first mounting table 14, and with respect to the support frame 43 in the conveyance crossing direction and the vertical direction. The workpiece holding means 44 and the workpiece rotating means 45 supported so as to be movable, the supply driving means 46 for driving the workpiece holding means 44 and the workpiece rotating means 45 in the crossing direction with respect to the support frame 43, and the workpiece holding means 44, respectively. And a lifting / lowering driving means 47 for raising / lowering the workpiece, and a rotating / lowering driving means 48 for raising / lowering the workpiece rotating means 45.

  As shown in FIGS. 2 and 6, the input lifter 41 includes, for example, a support plate 52 fixed substantially horizontally on the second mounting base 42 by a support leg 51 and a workpiece loading table on which an unprocessed workpiece W is loaded. 53, an elevating guide means 54 for guiding the work stacking table 53 in the vertical direction with respect to the support plate 52, and a lifter driving means 55 for driving the work stacking table 53 up and down, and the work stacking table 53 is lifter driving means. By moving up and down by 55, the uppermost workpiece W is held at the workpiece transfer position Pt having a predetermined height. The lifting guide means 54 is composed of a shaft 56 projecting in the vertical direction below the workpiece loading table 53 and a bush 57 fixed to the support plate 52 side and guiding the shaft 56 in the vertical direction. Yes.

  The workpiece holding means 44 is for holding the workpiece W when the workpiece W on the input lifter 41 is supplied to the workpiece supply position Ps, and has a predetermined shape supported in a horizontal state, for example, a frame plate having a rectangular plate shape. 61 and a plurality of suction means 62 attached downward to the frame plate 61 and connected to a negative pressure source (not shown). The plurality of suction means 62 can suck and hold the workpiece W from the upper surface side. It has become.

  The work holding means 44 is supported by a supply driving means 46 so as to be movable in the vertical direction via a transfer raising / lowering driving means 47 with respect to a movable support plate 63 that can move in the conveyance crossing direction with respect to the support frame 43. ing. That is, the work holding means 44 can be moved in the conveyance crossing direction by the supply driving means 46 and in the vertical direction by the transfer raising / lowering driving means 47, and is moved on the work transfer position Pt on the input lifter 41 side. After being lowered and raised by the loading / lowering driving means 47 and sucking and holding the workpiece W, the workpiece is moved by the supply driving means 46 to the workpiece supply position Ps on the workpiece transfer table 13 side, and further lowered by the loading / lowering driving means 47. The workpiece W is placed on the workpiece supply position Ps.

  The supply drive means 46 is, for example, a linear guide 65 fixed in the crossing direction on the slide base plate 64 provided substantially horizontally on the upper side of the support frame 43, and moved in the crossing direction by the linear guide 65. The movable member 66 is supported on the slide base plate 64, and the drive cylinder 67 is driven along the linear guide 65 in the conveyance crossing direction. The movable member 66 is movable on one end side of the movable member 66. A support plate 63 is fixed.

  Of course, the supply driving means 46 is not limited to such a configuration. For example, a configuration in which the movable support plate 63 is driven using a ball screw and a servo motor may be employed.

  For example, when the groove rotating is performed in two directions orthogonal to one workpiece W, the workpiece rotating unit 45 moves the workpiece W around the vertical axis on the workpiece conveyance table 13 when the groove processing in one direction is finished. For example, rotating main body case 71, suction means 72 mounted downward on the lower side of the rotating main body case 71 and connected to a negative pressure source (not shown), for example, rotating main body case 71. And a rotation driving means 73 that rotates the suction means 72 around the vertical axis, and rotates the suction means 72 that sucks the work W from the upper surface side by the rotation driving means 73. It can be rotated.

  Further, the work rotating means 45 is disposed, for example, at a position adjacent to the work holding means 44 in the conveyance crossing direction, and the bracket 74 and the rotation raising / lowering driving means with respect to the same movable support plate 63 as the work holding means 44. It is supported via 48 so as to be movable in the vertical direction. That is, the work rotation means 45 can be moved in the crossing direction by the supply driving means 46 and in the vertical direction by the rotation raising / lowering drive means 48, and the work supply position on the work conveyance table 13 by the supply driving means 46. The workpiece moves up to Ps, descends by the transfer raising / lowering drive means 47 and moves upward after attracting and holding the workpiece W, and after rotating the workpiece W by approximately 90 degrees via the suction means 72 by the rotation driving means 73, the workpiece is transferred. The work W is lowered again by the lift drive means 47 and the work W is placed on the work supply position Ps.

  For example, when the groove machining is performed only in one direction on one workpiece W, the workpiece rotating means 45 may be omitted.

  As shown in FIGS. 1 and 3 to 6, the groove forming means 5 includes a cutter unit 81 including the cutter 4, and a cutter support base 82 that supports the cutter unit 81 so as to be movable along the conveyance crossing direction. And a cutter movement driving means 83 for driving the cutter unit 81 in the conveyance crossing direction.

  The cutter support table 82 is arranged along the conveyance crossing direction on the second mounting table 42, for example, corresponding to the processing position Pp on the downstream end side of the workpiece conveyance table 13, and a cutter unit 81 is provided on the upper side thereof. A slide rail 84 is provided for guiding in the conveyance crossing direction. Note that two cutter support bases 82 are provided in parallel at a predetermined interval in the transport direction, for example.

  The cutter movement driving means 83 includes a ball screw 85 arranged along the conveyance crossing direction, a nut 86 fixed to the cutter unit 81 side and screwed into the ball screw 85, and a servo motor that rotationally drives the ball screw 85 about its axis. 87, the cutter unit 81 is reciprocated along the crossing direction of conveyance by rotating the ball screw 85 forward and backward by the servo motor 87.

  The ball screw 85 and the servo motor 87 are disposed between, for example, two cutter support tables 82 and supported on the second mounting table 42.

  The cutter unit 81 is supported on the cutter support table 82 on one side of the workpiece transfer table 13 with respect to the transfer direction, and is slidably placed on the upper side of the two parallel slide rails 84. A slide support plate 88, a vertical frame 89 erected upward on the slide support plate 88, and a substantially horizontal projection from the upper side of the vertical frame 89 toward the work transfer table 13 and a predetermined distance from each other. A pair of upper and lower horizontal frames 90 arranged substantially parallel to each other, a pair of upper and lower processing heads 91 supported on the distal end side of these horizontal frames 90 so as to be movable in the vertical direction, and the processing heads 91 with respect to the horizontal frame 90. Processing head driving means 92 for driving each in the vertical direction is provided.

  Note that the upper and lower horizontal frames 90 are arranged such that a gap formed between them, that is, the escape hole 93 is substantially the same height as the conveyance guide surface S on the workpiece conveyance table 13.

  The processing head 91 includes a cutter 4 made of a rotary blade that can rotate about an axis in the transport direction, a cutter drive motor 94 that rotationally drives the cutter 4, a cutter cover 95 that covers the periphery of the cutter 4, and the vicinity of the processing position of the cutter 4. And a dust collecting tube 97 for connecting a dust collecting port 96 that opens to a dust collecting device (not shown), and the upper and lower cutters 4 are arranged to face each other with the escape hole 93 interposed therebetween.

  The machining head drive means 92 includes a ball screw 98 that is arranged in the vertical direction and that is screwed with a nut (not shown) on the machining head 91 side, and a servo motor 99 that is fixed to the side frame 90 side and that rotationally drives the ball screw 98. And the depth of the groove formed on the workpiece W by each cutter 4 can be adjusted by individually driving the pair of upper and lower machining heads 91 up and down.

  The processing clamp 6 is disposed on the downstream side of the work transfer table 13, and as shown in FIGS. 1, 3 to 5 and 7, facing the upper and lower sides of the downstream side along the processing position Pp. An upper movable clamp plate 101 and a lower fixed clamp plate 102, clamp support means 103 for supporting the clamp plates 101 and 102, and movable clamp drive means 104 for driving the upper movable clamp plate 101 up and down are provided. Yes.

  The clamp support means 103 is provided on the downstream side of the processing position Pp and at the positions corresponding to the left and right sides of the conveyance guide surface S. For example, the clamp support means 103 is provided on the downstream support table 105 provided on the second mounting table 42. A vertical support frame 106 erected upward is provided, and a lower fixed clamp plate 102 is fixedly supported at a lower portion on the processing position Pp side of the vertical support frame 106, and an upper movable clamp plate 101 is moved in the vertical direction on an upper portion on the processing position Pp side. Supported as possible.

  As shown in FIG. 7 (d), the lower fixed clamp plate 102 is arranged with respect to the conveyance direction so that the upper surface side of the lower clamp portion 102 a disposed along the upper edge side is substantially coincident with the conveyance guide surface S. The clamp support means 103 is fixed at both left and right ends.

  The upper movable clamp plate 101 has the slide rails 107 at the left and right ends with respect to the transport direction so that the upper clamp portion 101a arranged along the lower edge of the upper movable clamp plate faces the upper side of the lower clamp portion 102a of the lower fixed clamp plate 102. The clamp support means 103 is supported so as to be movable in the vertical direction.

  The upper movable clamp plate 101 and the lower fixed clamp plate 102 have clearance grooves 108 for preventing interference with the machining head 91 during the groove forming process by the groove forming means 5 on the surface on the processing position Pp side. It is provided along the crossing direction.

  The movable clamp driving means 104 is composed of, for example, a drive cylinder, and is fixed to, for example, the upper end side of the clamp support means 103 via an attachment plate 109. The upper movable clamp plate 101 is raised and lowered at both the left and right sides with respect to the transport direction. By driving, the upper movable clamp plate 101 descends and the workpiece W is clamped by the upper clamp portion 101a and the lower clamp portion 102a, and the upper movable clamp plate 101 rises to clamp the workpiece W. It is possible to switch to the released “nipping release state”.

  As shown in FIG. 3, the upper movable clamp plate 101 is elastically urged upward by an urging means 110 such as a tension spring, that is, toward the “clamping release state” side, and the movable clamp driving means 104 is When in the ON state, the upper movable clamp plate 101 is driven downward, that is, to the “clamping state” side against the urging force of the urging means 110.

  The discharge means 7 is a conveyor device disposed on the downstream side of the processing clamp 6, and is disposed so as to be rotatable, for example, around an axis in the conveyance crossing direction, as shown in FIGS. A plurality of conveyor rollers 111 arranged in the conveying direction, a conveyor driving unit 112 that drives the conveyor rollers 111, a conveyor pressing unit 113 that presses the workpiece W on the conveyor roller 111 toward the conveyor roller 111, and the conveyor rollers 111 A conveyor frame 114 that supports the conveyor driving means 112, the conveyor pressing means 113, and the like. The conveyor frame 114 is disposed between, for example, the left and right clamp support means 103 and fixed on the downstream support table 105.

  The conveyor roller 111 is formed to have a length approximately the same as the width of the work transfer table 13, and its both end sides so that the upper surface side is substantially coincident with the transfer guide surface S on the work transfer table 13. In FIG. 5, the conveyor frame 114 is rotatably supported on the side wall 114a.

  The conveyor driving means 112 includes, for example, a driving motor 115 mounted on a conveyor frame 114, and a driving belt 116 wound around a driving pulley 115a of the driving motor 115 and a conveyor roller 111. By rotating the workpiece W in a predetermined direction at a predetermined speed, the processed workpiece W is conveyed downstream.

  The conveyor pressing means 113 is provided, for example, at two locations on the most upstream side and the most downstream side of the discharging means 7, and a conveyor pressing roller 117 disposed above and parallel to the conveyor roller 111, and this conveyor pressing means A pair of conveyor pressing arms 118 that support the roller 117 so as to be swingable around a predetermined axis in the conveyance crossing direction, and a pressing drive cylinder 119 that presses the conveyor pressing roller 117 toward the conveyor roller 111 via the conveyor pressing arm 118. And.

  The pair of conveyor pressing arms 118 are supported so as to be swingable around the axis in the conveyance crossing direction at an intermediate position in the longitudinal direction with respect to the side wall 114a of the conveyor frame 114, and rotate the conveyor pressing roller 117 at one end in the longitudinal direction. The other end in the longitudinal direction is connected to the pressing drive cylinder 119.

  One pressing drive cylinder 119 is provided for each conveyor pressing means 113, for example, and is disposed on the cylinder mounting plate 120 that connects the side walls 114a of the conveyor frame 114, for example, and is disposed in the conveyance crossing direction. It is connected to the end of each conveyor pressing arm 118 via a connecting shaft 121.

  The conveyor pressing roller 117 is elastically biased downward by the biasing means 122 such as a tension spring, that is, toward the conveyor roller 111, and the pressing drive cylinder 119 is biased by the biasing means 122 when turned on. The conveyor pressing roller 117 is driven upward, that is, in a direction away from the conveyor roller 111 against the force. The urging means 122 is disposed, for example, between the connecting shaft 121 and the cylinder mounting plate 120 so as to press the conveyor pressing roller 117 toward the conveyor roller 111 by urging the connecting shaft 121 upward. It has become.

  Operation | movement by the groove processing apparatus 1 demonstrated above is demonstrated. When the grooving process by the grooving apparatus 1 is started, the work W on the input lifter 41 is first input to the work supply position Ps on the work transfer table 13 by the work supply means 3. That is, the work holding means 44 is lowered by the transfer raising / lowering drive means 47 on the work transfer position Pt on the loading lifter 41 side and lifted in a state where one work W is attracted and held, and the work is conveyed by the supply drive means 46. The workpiece W moves to the workpiece supply position Ps on the table 13 side, and further, the workpiece W that has been released from being sucked and held by the transfer lifting drive means 47 is placed on the workpiece supply position Ps.

  When the workpiece W is supplied onto the workpiece supply position Ps, the upstream edge portion of the workpiece W is gripped by the gripping means 11 next. That is, first, the positioning cylinder 35 of the workpiece positioning means 31 is operated, the positioning blocks 32 are lifted via the positioning connecting plates 33, and the “carrying restriction state” in which the positioning claws 37 protrude above the conveyance guide surface S. (FIG. 7 (a) → (b)). Note that the timing at which the positioning block 32 is set to the “conveyance restricted state” does not have to be after the workpiece W is supplied onto the workpiece supply position Ps, and may be earlier, for example.

  Subsequently, the conveyance driving unit 12 is operated with the clamp claw portion 24 in the “gripping release state”, and the gripping unit 11 is moved in the conveyance direction (FIG. 7A → B). As a result, the workpiece W on the workpiece supply position Ps moves to the downstream side in the conveyance direction with the upstream edge Wb in the conveyance direction being pushed by the contact portion 24c in the clamp claw portion 24 of each workpiece clamp 21. When the downstream edge Wa of the workpiece W in the conveyance direction comes into contact with the positioning claws 37 of the positioning blocks 32 evenly (FIG. 7 (b) → (c)), the operation of the conveyance driving means 12 is stopped. Further, when the clamp claw portion 24 is switched to the “gripping state”, the upstream edge Wb in the conveyance direction of the workpiece W is gripped by each workpiece clamp 21.

  When the workpiece W is gripped by the gripping means 11, the positioning block 32 is lowered to switch to the “transportation allowable state” in which the positioning claw 37 is retracted below the transport guide surface S, and the transport driving means 12 is operated. Then, the workpiece W is transported to the downstream side in the transport direction by a predetermined distance, and the first processing target position is matched with the processing position Pp (FIG. 7 (c) → (d)).

  Subsequently, the movable clamp driving means 104 of the machining clamp 6 is operated to lower the upper movable clamp plate 101, and the workpiece W is sandwiched between the upper clamp portion 101a and the lower clamp portion 102a, thereby the vicinity of the downstream side of the machining position Pp. The workpiece W is fixed at. Then, the cutter drive motor 94 of the groove forming means 5 is operated to rotate the cutter 4, and the cutter movement drive means 83 is operated to reciprocate the cutter unit 81 in the conveyance crossing direction. A groove having a predetermined depth is formed.

  At this time, as shown in FIG. 7D, the workpiece W is supported in the vertical direction by the processing clamp 6 in the vicinity of the downstream side of the processing position Pp and by the gripping means 11 at the upstream edge Wb in the transport direction. Since the work position Pp and the upstream edge Wb in the transport direction are supported from the lower side by the work transport table 13, problems such as a decrease in the groove processing accuracy due to bending of the work W may occur. Absent.

  Thereafter, the workpiece W is released from being fixed by the machining clamp 6 and the conveyance driving means 12 is operated to convey the workpiece W to the downstream side by a predetermined distance, so that the second machining target position coincides with the machining position Pp. In this state, the groove processing is performed in the same procedure as above.

  When the groove processing is repeated on the workpiece W and is gradually conveyed downstream, the downstream end side of the workpiece W protrudes further to the downstream side than the processing clamp 6. Since it is held from the lower side by the conveyor roller 111, there is no possibility that the processing accuracy is lowered due to the drooping of the downstream end side of the work W or that a crack is generated in the already formed groove.

  When grooving one workpiece W only in one direction, the gripping means 11 releases the gripped workpiece W when the grooving process is repeated a predetermined number of times. Then, it is conveyed downstream by the discharge means 7.

  On the other hand, when grooving is performed in two directions orthogonal to one workpiece W, when the grooving processing is repeated a predetermined number of times, the conveyance driving means 12 operates in the reverse direction. The workpiece W is conveyed to the workpiece supply position Ps. Then, after the gripping of the work W by the gripping means 11 is released, the work W is rotated 90 degrees on the work supply position Ps by the work rotating means 45. That is, the work rotation means 45 is moved to the work supply position Ps by the supply driving means 46, is lowered by the transfer elevating drive means 47, and is lifted after the work W is sucked and held. Then, the workpiece W is rotated by 90 degrees, and then lowered by the transfer lifting drive means 47 to place the workpiece W on the workpiece supply position Ps.

  Thereafter, the same processing as that when the workpiece W is first placed on the workpiece supply position Ps is performed, and after the groove processing is performed in the direction orthogonal to the first formed groove, The workpiece W is conveyed downstream by the discharge means 7.

  As described above, the grooving apparatus 1 according to this embodiment includes the gripping means 11 that grips the workpiece W along the upstream edge Wb in the transport direction, and the transport driving unit that drives the gripping means 11 in the transport direction. 12 and the workpiece transfer means 13 having the workpiece transfer table 13 for supporting the workpiece W upward between the gripping means 11 and the processing position Pp, the workpiece W at the time of grooving is at the processing position Pp. In the vicinity of the downstream side, it is supported in the vertical direction by the gripping means 11 at the upstream edge Wb in the transport direction by the processing clamp 6, and between the processing position Pp and the upstream edge Wb in the transport direction by the work transport table 13. Since it is in a state of being supported from the lower side, problems such as a decrease in groove processing accuracy due to bending of the workpiece W cannot occur.

  Further, the discharge means 7 is disposed downstream of the machining position Pp and discharges the processed workpiece W to the downstream side. The discharge means 7 is disposed at the machining position Pp in the workpiece W during the groove formation by the groove forming means 5. Therefore, even if the grooving is repeated for one workpiece W and gradually conveyed to the downstream side, the downstream side of the processing position Pp is provided. Since the projecting portion is held from the lower side by the discharging means 7, there is no possibility that the processing accuracy is lowered due to the drooping of the downstream end side of the workpiece W, or that a defect such as a crack is generated in the already formed groove.

  Further, on the work transport table 13 downstream of the work supply position Ps, it is arranged in a direction substantially orthogonal to the transport direction and abuts on the downstream edge Wa of the work W in the transport direction to restrict movement in the transport direction. A work positioning means 31 that can be switched between a transport restricted state and a transport allowed state that allows movement is provided. The work positioning means 31 is set in a transport restricted state, the gripping means 11 is set in a grip released state, and the gripping means 11 is moved by the transport driving means 12. Is moved in the transport direction, and the gripper 11 grips the upstream edge Wb in the transport direction of the workpiece W while the downstream edge Wa of the workpiece W is regulated by the workpiece positioning unit 31. Therefore, the workpiece W can be easily and reliably gripped by the gripping means 11 in a predetermined posture.

  8 and 9 exemplify a second embodiment of the present invention, and a deviation angle detecting means for detecting a deviation angle of the workpiece W gripped by the gripping means 11 from a predetermined prescribed posture in the conveyance guide surface S. 131 shows an example in which the gripping means 11 is configured such that the angle with respect to the transport direction can be adjusted around a rotation axis orthogonal to the transport guide surface S based on the detection result of the misalignment angle detection means 131. The configuration of the grooving apparatus 1 of the present embodiment is the same as that of the first embodiment with respect to parts that are not particularly mentioned in the following description.

  The workpiece conveying means 2 of the present embodiment includes a gripping means 11 that grips the workpiece W along the upstream edge Wb in the transport direction, a transport driving means 12 that drives the gripping means 11 in the transport direction, and a gripping means 11. In addition to the workpiece transfer table 13 that supports the workpiece W upward between the workpiece and the processing position Pp, a workpiece holding angle changing unit 133 that changes the holding unit 11 around the rotation axis 132 orthogonal to the transfer guide surface S is provided. This is different from the first embodiment.

  The cross bar 22 according to the present embodiment includes a fixed-side cross bar 22a supported by a pair of transport rails 23a and 23b arranged on the left and right sides with respect to the transport direction of the work transport table 13 so as to be movable in parallel along the transport direction. A swing-side crossbar 22b supported so as to be swingable around a rotary shaft 132 in the vertical direction with respect to the fixed-side crossbar 22a. The gripping means 11, that is, a plurality of gripping means 11, is provided on the swing-side crossbar 22b. The work clamp 21 is fixed.

  The fixed-side crossbar 22a swings such that the rotary shaft 132 supports one end side thereof, for example, the side where the transport driving means 12 is disposed, and the other end side thereof supports the swing end side of the swing-side crossbar 22b upward. An end support 134 is provided. The oscillating end support part 134 includes, for example, a long hole-shaped guide hole 134a parallel to the conveyance guide surface S, and a plurality of projecting projections on the oscillating end side of the oscillating side crossbar 22b are provided in the guide hole 134a. For example, three support shafts 135 are slidably or slidably supported.

  The work gripping angle changing means 133 includes the swing side crossbar 22b and swing drive means 136 that swings the swing side crossbar 22b. The swing drive means 136 is disposed along the swing direction of the swing side cross bar 22b, for example, the transport direction, for example, the transport direction, and is rotationally driven by the servo motor 137, for example. And the ball screw 138 is screwed into a nut 139 fixed to the swinging crossbar 22b side, and the servomotor 137 rotates the ball screw 138 in the forward and reverse directions to swing the ball screw 138. The angle of the gripping means 11 fixed to the side crossbar 22b with respect to the transport direction can be adjusted.

  The swing driving means 136 is provided in the vicinity of the rotating shaft 132, for example, closer to the rotating shaft 132 than the gripping means 11.

  Furthermore, the grooving apparatus 1 according to the present embodiment includes a deviation angle detection unit 131 that detects a deviation angle of the workpiece W gripped by the gripping unit 11 from a predetermined prescribed posture in the conveyance guide surface S. The deviation angle detecting means 131 is gripped by the gripping means 11 based on the image pickup means 141 such as a CCD camera disposed on the cutter unit 81 of the groove forming means 5 and the captured image from the image pickup means 141, for example. And a calculation means 142 for calculating a deviation angle from the specified posture of the workpiece W.

  The imaging unit 141 is mounted downward, for example, on the front end side of the processing head 91, and images the workpiece W that has been transported to the angle adjustment position Pr on the transport guide surface S while being gripped by the gripping unit 11 from above. It is supposed to be.

  It is assumed that the workpiece W is provided with a predetermined reference mark, for example, a plurality of through holes in advance.

  The computing means 142 is configured by a computer such as a personal computer, for example, and recognizes the reference mark in the captured image captured by the imaging means 141, and the coordinate value of the reference mark and the reference corresponding to the specified posture. The deviation angle from the specified posture of the workpiece W is obtained based on the coordinate value.

  When the deviation angle is obtained by the deviation angle detection means 131, the oscillation driving means 136 is operated by the deviation angle adjustment control means 143, the gripping means 11 is oscillated by the deviation angle, and the workpiece being gripped by the gripping means 11 is detected. W matches the specified posture.

  After the workpiece W is supplied onto the workpiece supply position Ps by the workpiece supply means 3 and the workpiece W is gripped by the gripping means 11, the workpiece W is transported to the angle adjustment position Pr, and the prescribed posture by the above-described deviation angle detection means 131. For example, an edge portion of the workpiece W is obtained by performing a process of causing the gripping means 11 to swing by the control of the deviation angle adjustment control unit 143 based on the deviation angle to match the workpiece W with a specified posture based on the deviation angle. Even when grooving cannot be performed on the basis of the above, grooving can be performed accurately and easily.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to these each embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, the groove may be formed only on one side of the plate material. In this case, for example, the cutter 4 may be provided only on one of the upper and lower sides. The cutter 4 is not limited to the rotary blade.

  The processing support means 6 may be arranged to support the workpiece W in the vicinity of the processing position Pp on the upstream side in the conveyance direction. Moreover, the structure of the clamp of the process support means 6 is arbitrary.

  The number, size, etc. of the work clamps 21 constituting the gripping means 11 and the positioning blocks 32 constituting the work positioning means 31 are arbitrary.

  The structure of the workpiece supply means 3 is arbitrary, and may be provided separately from the groove processing apparatus 1.

  The plate material to be processed by the groove processing apparatus is not limited to the printed board. Moreover, the groove | channel formed in a board | plate material is not restricted to the thing for a division | segmentation, The groove | channel for what uses may be sufficient.

It is a top view of the groove processing apparatus which shows the 1st Embodiment of this invention. It is a front view of the groove processing apparatus which shows the 1st Embodiment of this invention. It is a rear view of the groove processing apparatus which shows the 1st Embodiment of this invention. It is a left view of the groove processing apparatus which shows the 1st Embodiment of this invention. 1 is a left side cross-sectional view of a grooving apparatus showing a first embodiment of the present invention. 1 is a left side cross-sectional view of a grooving apparatus showing a first embodiment of the present invention. It is explanatory drawing of the workpiece | work holding | grip and conveyance procedure of the groove processing apparatus which shows the 1st Embodiment of this invention. It is a top view of the groove processing apparatus which shows the 2nd Embodiment of this invention. It is sectional drawing of the workpiece holding angle change means vicinity of the groove processing apparatus which shows the 2nd Embodiment of this invention.

Explanation of symbols

2 Work conveying means 4 Cutter 5 Groove forming means 6 Processing clamp (processing support means)
7 Discharge means 11 Grasping means 12 Transport drive means 13 Work transport table (transport support means)
31 Work positioning means 131 Deviation angle detecting means 132 Rotating shaft Pp Processing position Ps Work supply position S Conveying guide surface W Work Wa Conveying direction downstream edge Wb Conveying direction upstream edge

Claims (5)

  A workpiece conveying means (2) for gripping a workpiece (W) made of a plate material and conveying it downstream so as to pass a predetermined machining position (Pp), and the workpiece conveying means (Pp) with respect to the machining position (Pp) A groove forming means (5) having a cutter (4) movable in a crossing direction substantially perpendicular to the conveying direction along the conveying guide surface (S) according to 2), and in the vicinity of the processing position (Pp) A workpiece supporting means (6) for supporting the workpiece (W), and each time one or a plurality of machining target positions on the workpiece (W) coincide with the machining position (Pp), the workpiece conveying means (2). In the groove processing apparatus for a plate material configured to form a groove on one side or both sides of the workpiece (W) by stopping the conveying operation by operating the groove forming means (5), the workpiece conveying means ( 2) is the workpiece W) gripping means (11) for gripping W) along the upstream edge (Wb) in the transport direction, transport driving means (12) for driving the gripping means (11) in the transport direction, and gripping means ( 11) and a conveying support means (13) for supporting the workpiece (W) upward between the machining position (Pp) and a plate material grooving apparatus.   Discharge means (7) is disposed downstream of the machining position (Pp) and discharges the processed workpiece (W) to the downstream side. The discharge means (7) is formed by the groove forming means (5). 2. The grooving device for a plate material according to claim 1, wherein a portion downstream of the machining position (Pp) in the workpiece (W) is supported from the lower side during groove formation. .   The conveyance support means (13) is arranged in the conveyance crossing direction on the downstream side of a predetermined workpiece supply position (Ps) and contacts the downstream edge (Wa) in the conveyance direction of the workpiece (W). A workpiece positioning means (31) that can be switched between a conveyance restricted state that restricts movement in a direction and a conveyance allowed state that permits movement, wherein the workpiece positioning means (31) is in the conveyance restricted state, and the gripping means ( 11) is released from the gripping state, and the transporting drive means (12) moves the gripping means (11) in the transporting direction so that the downstream edge (Wa) of the work (W) in the transporting direction is the work positioning means (31). The gripping means (11) is configured to grip the upstream edge (Wb) in the transport direction of the workpiece (W) in a state regulated by (1). Grooving apparatus of the plate material according to.   A shift angle detection unit (131) for detecting a shift angle from a predetermined prescribed posture in the transport guide surface (S) of the work (W) gripped by the gripping unit (11) is provided, and the gripping unit ( 11) is configured such that the angle with respect to the transport direction can be adjusted around the rotation axis (132) orthogonal to the transport guide surface (S) based on the detection result of the shift angle detecting means (131). The grooving device for a plate material according to any one of claims 1 to 3. 5. The plate grooving apparatus according to claim 4, wherein the rotating shaft (132) is arranged on one end side in the left-right direction with respect to the conveying direction.

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