CN104640371A - Positive and reverse spiral amplitude chip mounting head for chip mounting machine and amplitude change method of positive and reverse spiral amplitude chip mounting head - Google Patents
Positive and reverse spiral amplitude chip mounting head for chip mounting machine and amplitude change method of positive and reverse spiral amplitude chip mounting head Download PDFInfo
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- CN104640371A CN104640371A CN201510085303.2A CN201510085303A CN104640371A CN 104640371 A CN104640371 A CN 104640371A CN 201510085303 A CN201510085303 A CN 201510085303A CN 104640371 A CN104640371 A CN 104640371A
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- suction nozzle
- section
- placement head
- component suction
- luffing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
Abstract
The invention provides a positive and reverse spiral amplitude chip mounting head of a chip mounting machine and an amplitude change method of the positive and reverse spiral amplitude chip mounting head. The positive and reverse spiral amplitude chip mounting head comprises more than two chip mounting suction nozzle assemblies, wherein the plurality of chip patching nozzle assemblies are arranged in parallel and combined together, are arranged on a chip mounting head support frame, and can slide along a p-axis linear guide rail. The chip mounting head is characterized in that an amplitude change mechanism is also arranged on the chip mounting support frame, the amplitude change mechanism is connected with each movable chip mounting suction nozzle assembly, the patch suction nozzle assemblies are driven by the amplitude change mechanism arranged on the chip mounting head support frame to slide along the p-axis linear guide rail, and are driven by a servo motor to do amplitude change regulation movement through the amplitude change mechanism, and in addition, an identical space between suction nozzles arranged on each chip mounting suction nozzle assembly is always maintained in the amplitude change process.
Description
Technical field
The invention belongs to parts operational method and device that a kind of electronic device makes process equipment, in particular for chip mounter placement head and the pasting method of miniaturized electronic devices attachment, be mainly used in carrying out high speed on pcb plate, stable, mount miniature electric components and parts accurately.Achieve and enter plate from pcb, send plate, location, placement head suction, location, the Automatic Control of attachment.
Background technology
Chip mounter is also known as " placement equipment ", " surface mount system " (Surface Mount System), in production line, after it is configured in point gum machine or screen process press, be a kind of equipment by mobile mounting head Surface Mount Component, is placed on exactly on PCB pad.Placement head is the direct mechanism that chip mounter carries out paster work, is one of chip mounter key technology, after placement head pickup device can under the control of corrective system automatic calibration position, and components and parts are placed with exactly the position of specifying.The placement head of chip mounter is as the vitals of whole machine, and the performance for whole machine is very crucial, and the development of placement head is the mark of chip mounter progress, and placement head develops into bull optical centering by early stage single head, mechanical centering; Early stage single head chip mounter is formed by suction nozzle, locating detent, positioning table and Z axis, angular movement second system, and is fixed on X.Y shaft transmission.After suction nozzle draws components and parts, realize components and parts centering by mechanical centering body and simultaneously to loader signal (signal of telecommunication or mechanical signal), next components and parts entered and inhales sheet position.But this mode paster speed is very slow, is usually placed with chip components and parts and needs Is.In order to improve paster speed, people take the method increasing placement head quantity, namely adopt multiple placement head to increase paster speed.
Fixed multi-head is the structure that current universal chip mounter adopts, fixed multi-head outward appearance it be improve on the basis of former single head, namely increase 3 ~ 6 placement heads by single head.They are still fixed on X.Y axle, but do not re-use mechanical centering and change the optical centering of various ways into.Draw components and parts respectively during work, be then placed with successively again on PCB assigned address after centering.But existing placement head exists distance, and adjustment is immutable, be all even the position fixed, therefore for some need to carry out luffing adjust placement head time, cannot adjust, therefore necessaryly to be improved further.
By retrieving the patent literature found that there is about chip mounter, patent related to the present invention mainly contains following:
1, the patent No. is CN 201210519953, name is called " a kind of high-speed paster head ", which disclose a kind of high-speed paster head, comprise support, Z-axis lifting mechanism, θ rotation angle mechanism and paster axle, wherein, described Z-axis lifting mechanism comprises clutch shaft bearing, driven synchronous pulley, belt shaft, the second bearing, clutch, the first locking nut, bearing plate, angular contact bearing, ball screw, ball screw nut, screw mandrel contiguous block and brake; The output of lift servo motor connects a driving wheel; Belt shaft epimere is provided with clutch shaft bearing and driven synchronous pulley successively, and hypomere is provided with the second bearing, clutch successively.High-speed paster head Z-axis lifting mechanism of the present invention adopts a servomotor, a Timing Belt, a clutch, brake, carry out with the use of realizing multiaxis simultaneously or oscilaltion campaign separately once secondary ball wire bar pair, improve precision and the efficiency of paster, the mechanism simplified, reduces the cost of whole placement head.
2, the patent No. is CN201220627551.7, name is called " a kind of high-speed paster head list drives multiple shaft lifting motion ", which disclose a kind of high-speed paster head list and drive multiple shaft lifting motion, comprise lift servo motor, support, paster axle and a plurality of single shaft elevating movement mechanism; Wherein, described single shaft elevating movement mechanism include install in turn back-up ring, bearing, packing ring, driven pulley, packing ring, belt shaft, clutch, locking nut, bearing plate, angular contact bearing, screw mandrel, feed screw nut, screw mandrel contiguous block, brake and shaft end ring.
3, the patent No. is CN201310043021.7, and name is called " a kind of many suction nozzles synchronously inhale the efficient placement head of subsides ", which discloses the efficient placement head that a kind of many suction nozzles synchronously inhale subsides.Include supporting bracket, module is pasted in guide rail slide block, substrate, some suctions, drive and inhale the driving mechanism and driving of moving both vertically pasting that module moves up and down and inhale and paste module and make the horizontal movement driving mechanism of horizontal linear displacement, wherein substrate is installed on the supporting plate by guide rail slide block, and is fixed on and moves both vertically on driving mechanism; Suction is pasted module and is arranged on substrate, make horizontal linear displacement and paste between module to regulate the horizontal movement driving mechanism of the spacing of inhaling between subsides module to be arranged on substrate and to inhale, and suction subsides module is connected with horizontal movement driving mechanism for driving suction subsides module.
4, the patent No. is CN201320364205, name is called " a kind of full-automatic equidistantly adjustable placement head ", which disclose a kind of full-automatic equidistantly adjustable placement head, comprise outside support, trapezoidal plate support, trapezoidal plate, vertically move support, servo longitudinal motor, vertical servo motor, suction nozzle brace summer and suction nozzle, trapezoidal plate is fixed on trapezoidal plate support, trapezoidal plate support installing is in outside frame bottom, vertically move support installing on the guide rail on outside support both sides, inside servo longitudinal motor cradle top mounted externally, suction nozzle is arranged on suction nozzle brace summer, suction nozzle brace summer is arranged on and vertically moves on support, after vertical servo motor is arranged on and vertically moves support.Suction nozzle brace summer is two, installs the upper and lower both sides of trapezoidal plate respectively.Described suction nozzle is 8 to 32.Servo longitudinal motor drag vertically moves support, and drive suction nozzle movable on trapezoidal plate, suction nozzle brace summer maintains all suction nozzles all on same horizontal straight line, makes suction nozzle interval equal all the time and automatically adjusts.Vertical servo motor pushing suction nozzle brace summer, drives suction nozzle to move up and down and carries out feeding and paster.
Although these patents above-mentioned all relate to the placement head of chip mounter, but all not solving patent CN201320364205, to have related to mounting head internal spacing equal and can automatically adjust, but carefully analyze and can find out, this patent still just simply describes, and " servo longitudinal motor drag vertically moves support; drive suction nozzle movable on trapezoidal plate; suction nozzle brace summer maintains all suction nozzles all on same horizontal straight line, makes suction nozzle interval equal all the time and automatically adjusts.Vertical servo motor pushing suction nozzle brace summer, drives suction nozzle to move up and down and carries out feeding and paster ", still can not specifically adjust respectively each placement head of same row; Therefore how to carry out the adjustment between each suction nozzle of placement head, the luffing adjustment realized between any placement head is still the difficult problem needing to solve.
Summary of the invention
The object of the invention is to the deficiency of placement head existing in the adjustment of position for current chip mounter, a kind of new chip mounter placement head and pasting method thereof are proposed, the pasting method of this kind of chip mounter placement head and device can realize multiple placement head suction nozzle separately between the accurate dynamically self adjustment in position, realize the operation of arbitrary luffing, reach placement head to stablize, accurately, the object mounted fast.
For realizing object of the present invention, the implementer's case proposed is: a kind of luffing placement head of chip mounter forward-reverse spiral formula, comprise multiple paster suction nozzles of more than 2, arranged in parallel the combining of multiple paster suction nozzle is arranged on placement head support, and can slide along p axle line slideway, it is characterized in that, placement head support is also provided with jib lubbing mechanism, jib lubbing mechanism and each paster suction nozzle link together, described multiple paster suction nozzles are driven by the jib lubbing mechanism be arranged on placement head support to slide along p axle line slideway, and adjust motion by servomotor by jib lubbing mechanism band action luffing.
Further, described multiple paster suction nozzles are 5 paster suction nozzles, and wherein, No. 3 component suction nozzle mediates, and be fixed on placement head support by a connecting plate of below, its position is fixed, and do not participate in the luffing motion of placement head transverse direction; No. 1 component suction nozzle and No. 2 component suction nozzle are positioned on the left of No. 3 component suction nozzle, and No. 4 component suction nozzle and No. 5 component suction nozzle are positioned on the right side of No. 3 component suction nozzles; Described jib lubbing mechanism by a Changeable Lead mutarotation to leading screw combine with the bolted nut seat assembly of four suction nozzles of No. 1 component suction nozzle, No. 2 component suction nozzle, No. 4 component suction nozzle and No. 5 component suction nozzle respectively and form, by become lead mutarotation to leading screw adjusts No. 1 suction nozzle, the spacing of No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle realizes luffing adjustment, and keep 5 suction nozzles equal all the time in paster process in the spacing of same rectilinear direction.
Further, the change lead mutarotation of described jib lubbing mechanism to leading screw by driven by servomotor, drive screw turns through toothed belt transmission by power transmission to leading screw.No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat are connected with nut assembly respectively by one piece of connecting plate with No. 5 suction nozzle seat, nut assembly comprises nut and nut sleeve bolted with it, be furnished with straight-line guide rail slide block assembly up and down at placement head suction nozzle seat rear, suction nozzle seat is linked together by bolt and straight-line guide rail slide block.When leading screw is rotated by driven by motor, nut can produce horizontal movement on leading screw, thus drives nut sleeve and slide on cross slide way with its placement head suction nozzle seat be connected by connecting plate, thus achieves the luffing motion of placement head component suction nozzle.
Further, described leading screw is that multistage does not wait the screw combinations of lead and rotation direction to be formed, and wherein, the 1st section of screw thread is identical with the 2nd section of thread rotary orientation, 3rd section of screw thread is identical with the 4th section of thread rotary orientation, and the 1st section of screw thread, the 2nd section of thread rotary orientation and the 3rd section of screw thread, the 4th section of thread rotary orientation are contrary; 1st section of screw thread and the 4th section of lead are the twice of the 2nd section of screw thread and the 3rd section of lead; 1st section of screw thread of screw rod, the 2nd section of screw thread, the 3rd section of screw thread, the 4th section of screw thread are the impulse stroke of four nuts respectively, four nuts are linked together with No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat and No. 5 suction nozzle seat respectively by connecting plate, are bolted.
Thus, when screw rod rotates, ensure that the moving direction of No. 1 component suction nozzle No. 3 fixing suction nozzle both sides and No. 2 component suction nozzle, No. 4 component suction nozzle and No. 5 component suction nozzle is contrary, and two the suction nozzle transverse shifting distances being in outside are twices of two suction nozzle displacements of inner side, thus achieve luffing function, and ensure that the spacing of 5 suction nozzles in whole paster motion process remains equal.
Further, during described leading screw employing trapezoidal thread, the top of each nut sleeve of described suction nozzle seat is provided with the cylinder of mounting spring, is connected respectively by extension spring with frame.Therefore, when then carrying out luffing motion when placement head, be forever subject to one-sided horizontal pretightning force, when avoiding break-in sideshake exist the error of producing.
Further, during described leading screw employing precision ball screw, described feed screw nut is directly connected with nut seat, and nut seat is connected with the suction nozzle seat on component suction nozzle.
Further, during described jib lubbing mechanism work, provide power by jib lubbing mechanism servomotor, and by toothed belt transmission by transmission of power on leading screw.
A kind of placement head suction nozzle luffing method utilizing above-mentioned luffing placement head, be arranged on placement head support by arranged in parallel for multiple placement head suction nozzle together, and can move in parallel on the track of placement head support, it is characterized in that, luffing motion when multiple placement head suction nozzle moves in parallel on the track of placement head support; Described luffing motion drives multiple placement head suction nozzle to do luffing motion by the screw mandrel of a forward-reverse spiral formula.
Further, described multiple paster suction nozzles are 5 paster component suction nozzles, and wherein, No. 3 suction nozzle mediates, and be fixed on placement head support by a connecting plate of below, its position is fixed, and do not participate in the luffing motion of placement head transverse direction; No. 1 component suction nozzle and No. 2 component suction nozzle are positioned on the left of No. 3 component suction nozzle, and No. 4 component suction nozzle and No. 5 component suction nozzle are positioned on the right side of No. 3 suction nozzles; Described jib lubbing mechanism by one become lead mutarotation to leading screw combine with the bolted nut seat assembly of four suction nozzles of No. 1 suction nozzle, No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle respectively and forms, by Changeable Lead mutarotation to leading screw adjusts No. 1 suction nozzle, the spacing of No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle realizes luffing adjustment.
Further, the change lead mutarotation of described jib lubbing mechanism to leading screw by driven by servomotor, drive screw turns through toothed belt transmission by power transmission to leading screw.No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat are connected with nut assembly respectively by one piece of connecting plate with No. 5 suction nozzle seat, nut assembly comprises nut and nut sleeve bolted with it, be furnished with straight-line guide rail slide block assembly up and down at placement head suction nozzle seat rear, suction nozzle seat is linked together by bolt and straight-line guide rail slide block.When leading screw is rotated by driven by motor, nut can produce horizontal movement on leading screw, thus drives nut sleeve and slide on cross slide way with its placement head suction nozzle seat be connected by connecting plate, thus achieves the motion of placement head.
Further, described leading screw is that multistage does not wait the screw combinations of lead and rotation direction to be formed, wherein, 1st section identical with the 2nd section of screw rod rotation direction, 3rd section identical with the 4th section of screw rod rotation direction, and the 1st section of screw thread is identical with the 2nd section of thread rotary orientation, the 3rd section of screw thread is identical with the 4th section of thread rotary orientation, and the 1st section of screw thread, the 2nd section of thread rotary orientation and the 3rd section of screw thread, the 4th section of thread rotary orientation are contrary; 1st section of screw thread and the 4th section of lead are the twice of the 2nd section of screw thread and the 3rd section of lead; 1st section of screw thread of screw rod, the 2nd section of screw thread, the 3rd section of screw thread, the 4th section of screw thread are the impulse stroke of four nuts respectively, four nuts are linked together with No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat and No. 5 suction nozzle seat respectively by connecting plate, are bolted.
Thus, when screw rod rotates, ensure that the moving direction of No. 1 component suction nozzle No. 3 fixing suction nozzle both sides and No. 2 component suction nozzle, No. 4 component suction nozzle and No. 5 component suction nozzle is contrary, and two the suction nozzle transverse shifting distances being in outside are twices of the suction nozzle displacement of inner side, thus achieve luffing function, and ensure that the spacing of each suction nozzle in same rectilinear direction in amplitude changing process is equal all the time.
The invention has the advantages that: all placement head suction nozzles are arranged on placement head mount pad by the present invention respectively, position luffing adjustment is carried out by a jib lubbing mechanism, make placement head can realize luffing motion, have good effect for the performance improving overall chip mounter.Especially by one become lead mutarotation to leading screw, moved by the horizontal luffing of placement head suction nozzle that rotarily drives of screw rod, dynamically change the spacing between suction nozzle, and keep suction nozzle interval equal all the time in same rectilinear direction, there is reliable in action, the simple feature of structure.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of one embodiment of the invention;
Fig. 2 is the jib lubbing mechanism structural representation of the embodiment of the present invention;
Fig. 3 is the Changeable Lead screw-rod structure schematic diagram of the embodiment of the present invention;
Fig. 4 is nut sleeve and the spring fitting column structure schematic diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment one
Accompanying drawing 1-4 gives a kind of implementer's case of the present invention.Can be found out by accompanying drawing, the present invention relates to a kind of luffing placement head of chip mounter forward-reverse spiral formula, comprise multiple paster suction nozzles 1 of more than 2, arranged in parallel the combining of multiple paster suction nozzle 1 is arranged on placement head support 2, and can slide along p axle line slideway 3, it is characterized in that, placement head support 2 is also provided with jib lubbing mechanism 4, jib lubbing mechanism and each paster component suction nozzle link together, described multiple paster suction nozzles 1 are driven by the jib lubbing mechanism 4 be arranged on placement head support 2 to slide along p axle line slideway 3, and be with action luffing to adjust motion by servomotor 5 by jib lubbing mechanism 4.
Further, wherein, No. 3 component suction nozzle 6 mediates, and be fixed on placement head support 2 by a connecting plate of below, its position is fixed, and does not participate in the luffing motion of placement head transverse direction; No. 1 component suction nozzle 7 and No. 2 component suction nozzle 8 are positioned on the left of No. 3 component suction nozzle 6, and No. 4 component suction nozzle 9 and No. 5 component suction nozzle 10 are positioned on the right side of No. 3 component suction nozzles 6; Described jib lubbing mechanism 4 by a Changeable Lead mutarotation to leading screw 11 combine with the bolted nut seat assembly 12 of four suction nozzles of No. 1 component suction nozzle 7, No. 2 component suction nozzle 8, No. 4 component suction nozzle 9 and No. 5 component suction nozzle 10 respectively and form, by become lead mutarotation to leading screw adjusts No. 1 suction nozzle, the spacing of No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle realizes luffing adjustment, and keep 5 suction nozzles equal all the time in paster process in the spacing of same rectilinear direction.
Further, the change lead mutarotation of described jib lubbing mechanism 4 to leading screw 11 driven by servomotor 5, drive screw turns through toothed belt transmission structure 13 by power transmission to leading screw.No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat are connected with nut assembly 12 respectively by one piece of connecting plate 14 with No. 5 suction nozzle seat, nut assembly 12 comprises nut and nut sleeve bolted with it, be furnished with straight-line guide rail slide block assembly 15 up and down at placement head suction nozzle seat rear, suction nozzle seat is linked together by bolt and straight-line guide rail slide block.When leading screw is rotated by driven by motor, nut can produce horizontal movement on leading screw, thus drives nut sleeve and slide on cross slide way with its placement head suction nozzle seat be connected by connecting plate, thus achieves the motion of placement head.
Further, described leading screw 11 is that multistage does not wait the screw combinations of lead and rotation direction to be formed, wherein, 1st section of screw rod 16 is identical with the 2nd section of screw rod 17 rotation direction, 3rd section of screw rod 18 is identical with the 4th section of screw rod 19 rotation direction, and the 1st section of screw thread is identical with the 2nd section of thread rotary orientation, the 3rd section of screw thread is identical with the 4th section of thread rotary orientation, and the 1st section of screw thread, the 2nd section of thread rotary orientation and the 3rd section of screw thread, the 4th section of thread rotary orientation are contrary; 1st section of screw thread and the 4th section of lead are the twice of the 2nd section of screw thread and the 3rd section of lead; 1st section of screw thread of screw rod, the 2nd section of screw thread, the 3rd section of screw thread, the 4th section of screw thread are the impulse stroke of four nuts respectively, four nuts are linked together with No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat and No. 5 suction nozzle seat respectively by connecting plate, are bolted.
Thus, when screw rod rotates, ensure that the moving direction of No. 1 suction nozzle No. 3 fixing suction nozzle both sides and No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle is contrary, and the suction nozzle being in two suction nozzle transverse shiftings distance relative inner in outside is large, thus achieves luffing function.
Further, described threads of lead screw adopts trapezoidal thread, and the top of each nut sleeve of described suction nozzle seat is provided with the cylinder 20 of mounting spring, is connected respectively by spring with frame.Therefore, when then carrying out luffing motion when placement head, be forever subject to one-sided horizontal pretightning force, when avoiding break-in sideshake exist the error of producing.
Further, during described leading screw employing precision ball screw, described feed screw nut is directly connected with nut seat, and nut seat is connected with the suction nozzle seat on component suction nozzle.
Further, during described jib lubbing mechanism work, provide power by jib lubbing mechanism servomotor, and by toothed belt transmission by transmission of power on leading screw.
A kind of placement head suction nozzle luffing method utilizing above-mentioned luffing placement head, be arranged on placement head support by arranged in parallel for multiple placement head suction nozzle together, and can move in parallel on the track of placement head support, it is characterized in that, luffing motion when multiple placement head suction nozzle moves in parallel on the track of placement head support; Described luffing motion drives multiple placement head suction nozzle to do luffing motion by the screw mandrel of a forward-reverse spiral formula.
Further, described multiple paster suction nozzles are 5 paster suction nozzles, and wherein, No. 3 suction nozzle mediates, and be fixed on placement head support by a connecting plate of below, its position is fixed, and do not participate in the luffing motion of placement head transverse direction; No. 1 component suction nozzle and No. 2 component suction nozzle are positioned on the left of No. 3 component suction nozzle, and No. 4 component suction nozzle and No. 5 component suction nozzle are positioned on the right side of No. 3 suction nozzles; Described jib lubbing mechanism by a Changeable Lead mutarotation to leading screw combine with the bolted nut seat assembly of four suction nozzles of No. 1 component suction nozzle, No. 2 component suction nozzle, No. 4 component suction nozzle and No. 5 component suction nozzle respectively and form, by Changeable Lead mutarotation to leading screw adjust No. 1 suction nozzle, No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle and they realize luffing adjustment relative to the spacing of the 3rd component suction nozzle.
Further, the Changeable Lead mutarotation of described jib lubbing mechanism to leading screw by driven by servomotor, drive screw turns through toothed belt transmission by power transmission to leading screw.No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat are connected with nut assembly respectively by one piece of connecting plate with No. 5 suction nozzle seat, nut assembly comprises nut and nut sleeve bolted with it, be furnished with straight-line guide rail slide block assembly up and down at placement head suction nozzle seat rear, suction nozzle seat is linked together by bolt and straight-line guide rail slide block.When leading screw is rotated by driven by motor, nut can produce horizontal movement on leading screw, thus drives nut sleeve and slide on cross slide way with its placement head suction nozzle seat be connected by connecting plate, thus achieves the motion of placement head.
Further, described leading screw be multistage not equal lead and rotation direction screw combinations formed, wherein, the 1st section of screw thread is identical with the 2nd section of thread rotary orientation, 3rd section of screw thread is identical with the 4th section of thread rotary orientation, and the 1st section of screw thread, the 2nd section of thread rotary orientation and the 3rd section of screw thread, the 4th section of thread rotary orientation are contrary; 1st section of screw thread and the 4th section of lead are the twice of the 2nd section of screw thread and the 3rd section of lead; 1st section of screw thread of screw rod, the 2nd section of screw thread, the 3rd section of screw thread, the 4th section of screw thread are the impulse stroke of four nuts respectively, four nuts are linked together with No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat and No. 5 suction nozzle seat respectively by connecting plate, are bolted.
Thus, when screw rod rotates, ensure that the moving direction of No. 1 suction nozzle No. 3 fixing suction nozzle both sides and No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle is contrary, and the suction nozzle being in two suction nozzle transverse shiftings distance relative inner in outside is large, thus achieves luffing function.
In addition, consistent with the Calculation Basis of luffing for the ease of location, position when 5 suction nozzle seats are drawn close completely is set as the initial null position of each suction nozzle seat, four nuts of jib lubbing mechanism are got and are fixed the nearest position of component suction nozzle 3 as first position from centre simultaneously, when considering screw rod machining screw, tiled configuration can not full symmetric, therefore when assembling, the connecting plate of each suction nozzle and the connecting hole of nut can not completely to the hearts, therefore mounting hole is opened with nut junction on connecting plate, be convenient to the biased difference in hole of compensate for lateral to ensure the initial null position of each suction nozzle seat.In amplitude changing process, because the thread rotary orientation of No. 3 component suction nozzle both sides is contrary, when screw turns time, be then positioned at No. 1 component suction nozzle of No. 3 component suction nozzle both sides, No. 2 component suction nozzle, No. 4 component suction nozzle and No. 5 component suction nozzle can move towards contrary direction, simultaneously, owing to being in No. 1 component suction nozzle in outside, No. 5 component suction nozzle place lead is in No. 2 component suction nozzle in inner side, the twice of No. 4 component suction nozzle place lead, then when screw turns unit, corresponding No. 2 component suction nozzle, No. 4 component suction nozzle is towards oppositely moving a unit, No. 1 component suction nozzle simultaneously, No. 5 component suction nozzle is towards reverse mobile Liang Ge unit.Ensure that the spacing between 5 component suction nozzles is all 1 unit thus.In like manner, in amplitude changing process during screw turns, ensure that the spacing between 5 component suction nozzles is consistent, achieve luffing.
Meanwhile, if during threads of lead screw employing trapezoidal thread, consider that placement head is in amplitude changing process, suction nozzle seat break-in athletic meeting is because the existence of screw thread sideshake produces break-in error.Therefore above each nut sleeve, be provided with the cylinder of mounting spring, be connected with frame respectively by spring.Then when placement head carries out luffing motion, be forever subject to one-sided horizontal pretightning force, when avoiding break-in sideshake exist the error of producing.
When installing placement head, first the jib lubbing mechanism feed screw nut assembly with nut and nut seat is contained on placement head support, make the first position of on leading screw four nuts all draw close to centre simultaneously, again jib lubbing mechanism servomotor and mounting bracket are screwed on placement head support, load onto synchronizing wheel and Timing Belt at the output of motor and the power intake of screw mandrel and tighten the screw of synchronizing wheel and the fixed screw of jib lubbing mechanism servomotor mounting bracket after suitable for Timing Belt tensioning.Want to be connected with nut seat respective on leading screw by screw again by after five independent installations of placement head assembly, be wherein positioned at No. three middle suction nozzle seats and be fixed on separately on placement head support.For adopting the jib lubbing mechanism of trapezoidal screw, finally by between the spring fitting cylinder of spring fitting in four nut sleeve and the spring fitting cylinder in the middle of placement head support, for the jib lubbing mechanism adopting precision ball screw, make on leading screw four nuts with after middle 3rd component suction nozzle position is first position, by feed screw nut jib lubbing mechanism by connecting plate directly with the 1st, 2,4,5 component suction nozzles are connected.
Operationally, when inhaling components and parts, the instruction of software output program controls z-axis servomotor and rotates placement head, and when driving suction nozzle rod to drive nozzle head to move downwardly to assigned address, z-axis servomotor stops operating.Now program control jettron, finds time to form negative pressure by vacuum plant by suction nozzle rod inner air and is picked up by components and parts.Then z-axis servomotor rotates and placement head is risen to assigned address.Placement head is in the process moving to service position, by image procossing and feedback, the instruction of servomotor reception program to carry out rotating to each placement head between spacing carry out luffing, the angle of components and parts compensates and corrects by pc by output program order-driven θ angle adjustment motor after feedack process simultaneously.When behind arrival assigned work position, z-axis servomotor receives instruction and rotates, control placement head to move downward with components and parts, the closed electromagnetic valve of negative pressure is controlled when arriving assigned address, open purge valve simultaneously, baric systerm is blown to the element that is adsorbed on suction nozzle by suction nozzle, then components and parts are due under the effect of self gravitation and air blowing air pressure, fall to being mounted on pcb plate.The each placement head state of program control afterwards zero, carrying out the next one work period realizes work object.
The invention has the advantages that: all placement head suction nozzles are arranged on placement head mount pad by the present invention respectively, position luffing adjustment is carried out by a jib lubbing mechanism, make placement head can realize luffing motion, have good effect for the performance improving overall chip mounter.Especially by a Changeable Lead mutarotation to leading screw, rotarily drive the horizontal luffing motion of placement head suction nozzle by screw rod, there is reliable in action, the simple feature of structure.
Obviously, the embodiment cited by the application is just in order to be described further cited several examples to principle of the present invention and structure, and any some improvement done according to principle design of the present invention all should belong to the scope that the present invention protects.
Explanation of nouns:
1, θ axle: refer to the motor shaft driving suction nozzle gyration
2, z-axis: refer to the electric machine main shaft driving component suction nozzle to move up and down
3, p axle: the i.e. electric machine main shaft of the expansion of suction nozzle seat or gathering motion during drive Timing Belt.
Claims (10)
1. the luffing placement head of a chip mounter forward-reverse spiral formula, comprise multiple paster component suction nozzles of more than 2, arranged in parallel the combining of multiple paster component suction nozzle is arranged on placement head support, and can slide along p axle line slideway, it is characterized in that, placement head support is also provided with jib lubbing mechanism, jib lubbing mechanism is connected with the paster component suction nozzle of each activity, described multiple paster component suction nozzles are driven by the jib lubbing mechanism be arranged on placement head support to slide along p axle line slideway, and adjust motion by servomotor by jib lubbing mechanism band action luffing.
2. the luffing placement head of chip mounter forward-reverse spiral formula according to claim 1, it is characterized in that, described multiple paster component suction nozzles are 5 paster component suction nozzles, wherein, No. 3 component suction nozzle mediates, be fixed on placement head support by a connecting plate of below, its position is fixed, and does not participate in the luffing motion of placement head transverse direction; No. 1 component suction nozzle and No. 2 component suction nozzle are positioned on the left of No. 3 component suction nozzle, and No. 4 component suction nozzle and No. 5 component suction nozzle are positioned on the right side of No. 3 suction nozzles; Described jib lubbing mechanism by one become lead mutarotation to the nut seat assembly that is connected with four component suction nozzles of No. 1 component suction nozzle, No. 2 component suction nozzle, No. 4 component suction nozzle and No. 5 component suction nozzle respectively of leading screw combine and form, by change lead mutarotation to leading screw adjust No. 1 component suction nozzle, No. 2 component suction nozzle, between No. 4 component suction nozzle and No. 5 component suction nozzle and with the spacing of No. 3 fixing component suction nozzle, realize luffing adjustment.
3. the luffing placement head of chip mounter forward-reverse spiral formula according to claim 2, is characterized in that, the change lead mutarotation of described jib lubbing mechanism to leading screw by driven by servomotor, drive screw turns through toothed belt transmission by power transmission to leading screw; No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat are connected with nut assembly respectively by one piece of connecting plate with No. 5 suction nozzle seat, nut assembly comprises nut and nut sleeve bolted with it, be furnished with straight-line guide rail slide block assembly up and down at placement head suction nozzle seat rear, suction nozzle seat is linked together by bolt and straight-line guide rail slide block; When leading screw is rotated by driven by motor, nut can produce horizontal movement on leading screw, thus drives nut sleeve and slide on cross slide way with its placement head suction nozzle seat be connected by connecting plate, thus achieves the motion of placement head.
4. the luffing placement head of chip mounter forward-reverse spiral formula according to claim 3, it is characterized in that, described leading screw is that multistage does not wait the screw combinations of lead and rotation direction to be formed, wherein, 1st section of screw thread is identical with the 2nd section of thread rotary orientation, 3rd section of screw thread is identical with the 4th section of thread rotary orientation, and the 1st section of screw thread, the 2nd section of thread rotary orientation and the 3rd section of screw thread, the 4th section of thread rotary orientation are contrary; 1st section of screw thread and the 4th section of lead are the twice of the 2nd section of screw thread and the 3rd section of lead; 1st section of screw thread of screw rod, the 2nd section of screw thread, the 3rd section of screw thread, the 4th section of screw thread are the impulse stroke of four nuts respectively, four nuts are linked together with No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat and No. 5 suction nozzle seat respectively by connecting plate, are bolted.
5. the luffing placement head of chip mounter forward-reverse spiral formula according to claim 4; when screw adopts trapezoidal thread; it is characterized in that, the top of each nut sleeve of described suction nozzle seat is provided with the cylinder of mounting spring, is connected respectively by spring with frame;
.therefore, when then carrying out luffing motion when placement head, be forever subject to one-sided horizontal pretightning force, when avoiding break-in sideshake exist the error of producing.
6. according to the luffing placement head of the chip mounter forward-reverse spiral formula shown in claim 4, it is characterized in that, when placement head is installed, alignment pin on placement head base plate is that benchmark installs the 3rd component suction nozzle, then with the suction nozzle seat two sides of the 3rd component suction nozzle for benchmark, by the 1st component suction nozzle, 2nd component suction nozzle, 4th component suction nozzle and the 5th component suction nozzle are arranged on the slide block of base plate rail, initial position is that five component suction nozzles draw close installation side by side, equal by the spacing of accuracy guarantee 5 suction nozzles of part, when installing simultaneously, 1st component suction nozzle, 2nd component suction nozzle, it is first position that 3rd component suction nozzle and the 4th component suction nozzle section feed screw nut are got near middle fixing component suction nozzle 3 position, consistent with the Calculation Basis of luffing for the ease of location, position when 5 suction nozzle seats are drawn close completely is set as the initial null position of each suction nozzle seat, and mounting hole is opened with nut junction on connecting plate, be used for the biased difference in hole of compensate for lateral to ensure the initial null position that each suction nozzle seat is connected with feed screw nut.
7. the luffing placement head of chip mounter forward-reverse spiral formula according to claim 5, is characterized in that, during described jib lubbing mechanism work, provides power by jib lubbing mechanism servomotor, and by toothed belt transmission by transmission of power on leading screw.
8. one kind utilizes the placement head suction nozzle luffing method of luffing placement head described in claim 1, be arranged on placement head support by arranged in parallel for multiple placement head component suction nozzle together, and can move in parallel on the track of placement head support, it is characterized in that, luffing motion when multiple placement head component suction nozzle moves in parallel on the track of placement head support; Described luffing motion drives multiple placement head suction nozzle to do luffing motion by the screw mandrel of a forward-reverse spiral formula.
9. the luffing placement head of chip mounter forward-reverse spiral formula according to claim 7, it is characterized in that, described multiple paster suction nozzles are 5 paster component suction nozzles, wherein, No. 3 component suction nozzle mediates, be fixed on placement head support by a connecting plate of below, its position is fixed, and does not participate in the luffing motion of placement head transverse direction; No. 1 component suction nozzle and No. 2 component suction nozzle are positioned on the left of No. 3 component suction nozzle, and No. 4 component suction nozzle and No. 5 component suction nozzle are positioned on the right side of No. 3 suction nozzles; Described jib lubbing mechanism by one become lead mutarotation to leading screw combine with the bolted nut seat assembly of four suction nozzles of No. 1 component suction nozzle, No. 2 component suction nozzle, No. 4 component suction nozzle and No. 5 component suction nozzle respectively and forms, by become lead mutarotation to leading screw adjusts No. 1 suction nozzle, the spacing of No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle realizes luffing adjustment.
10. the luffing placement head of chip mounter forward-reverse spiral formula according to claim 7, it is characterized in that, described leading screw is that multistage does not wait the screw combinations of lead and rotation direction to be formed, wherein, 1st section of screw thread is identical with the 2nd section of thread rotary orientation, 3rd section of screw thread is identical with the 4th section of thread rotary orientation, and the 1st section of screw thread, the 2nd section of thread rotary orientation and the 3rd section of screw thread, the 4th section of thread rotary orientation are contrary; 1st section of screw thread and the 4th section of lead are the twice of the 2nd section of screw thread and the 3rd section of lead; 1st section of screw thread of screw rod, the 2nd section of screw thread, the 3rd section of screw thread, the 4th section of screw thread are the impulse stroke of four nuts respectively, four nuts are linked together with No. 1 suction nozzle seat, No. 2 suction nozzle seat, No. 4 suction nozzle seat and No. 5 suction nozzle seat respectively by connecting plate, are bolted; Thus, when screw rod rotates, ensure that the moving direction of No. 1 suction nozzle No. 3 fixing suction nozzle both sides and No. 2 suction nozzle, No. 4 suction nozzle and No. 5 suction nozzle is contrary, and No. 1 suction nozzle, the 5th suction nozzle transverse shifting distance that are in outside are No. 2 suction nozzle of inner side, the twice of No. 4 suction nozzle displacement, thus achieve luffing function, and ensure in amplitude changing process, the spacing of five suction nozzles is equal all the time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510085303.2A CN104640371B (en) | 2015-02-17 | 2015-02-17 | The luffing placement head and its luffing method of a kind of chip mounter forward-reverse spiral formula |
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| CN201510085303.2A CN104640371B (en) | 2015-02-17 | 2015-02-17 | The luffing placement head and its luffing method of a kind of chip mounter forward-reverse spiral formula |
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| CN105523379A (en) * | 2015-12-03 | 2016-04-27 | 深圳市兴华炜科技有限公司 | Scissors-fork type feed paster device with parallel suction nozzles and control method |
| CN105746626A (en) * | 2016-04-29 | 2016-07-13 | 北京申晨机械设备有限公司 | Dough piece separating mechanism, dough piece turn-transporting device and dough piece cutting equipment |
| CN110191629A (en) * | 2019-06-04 | 2019-08-30 | 江苏腾世机电有限公司 | A kind of automatic equidistant regulating device of chip mounter |
| CN110203691A (en) * | 2019-05-07 | 2019-09-06 | 良忠城精密科技(苏州)有限公司 | A kind of stepless automatic change spacing mould group |
| CN111669963A (en) * | 2020-05-26 | 2020-09-15 | 江西易通智能装备制造有限公司 | Adhesive head assembly, adhesive mounter and adhesive mounting method |
| CN112249579A (en) * | 2020-10-23 | 2021-01-22 | 南京晓庄学院 | Differential distributed control type automatic dispensing device for traditional Chinese medicine |
| CN114173488A (en) * | 2021-12-07 | 2022-03-11 | 宜宾鼎卓科技有限公司 | Suction nozzle device for SMT chip mounter and using method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105523379A (en) * | 2015-12-03 | 2016-04-27 | 深圳市兴华炜科技有限公司 | Scissors-fork type feed paster device with parallel suction nozzles and control method |
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| CN110203691A (en) * | 2019-05-07 | 2019-09-06 | 良忠城精密科技(苏州)有限公司 | A kind of stepless automatic change spacing mould group |
| CN110191629A (en) * | 2019-06-04 | 2019-08-30 | 江苏腾世机电有限公司 | A kind of automatic equidistant regulating device of chip mounter |
| CN111669963A (en) * | 2020-05-26 | 2020-09-15 | 江西易通智能装备制造有限公司 | Adhesive head assembly, adhesive mounter and adhesive mounting method |
| CN111669963B (en) * | 2020-05-26 | 2023-09-05 | 江西易通智能装备制造有限公司 | Head attaching assembly, chip mounter and chip attaching method |
| CN112249579A (en) * | 2020-10-23 | 2021-01-22 | 南京晓庄学院 | Differential distributed control type automatic dispensing device for traditional Chinese medicine |
| CN114173488A (en) * | 2021-12-07 | 2022-03-11 | 宜宾鼎卓科技有限公司 | Suction nozzle device for SMT chip mounter and using method thereof |
| CN114173488B (en) * | 2021-12-07 | 2023-11-03 | 宜宾鼎卓科技有限公司 | Suction nozzle device for SMT chip mounter and using method thereof |
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