CN85107808A - The method and the equipment therefor thereof of chip type circuit element are installed on printed circuit board (PCB) - Google Patents
The method and the equipment therefor thereof of chip type circuit element are installed on printed circuit board (PCB) Download PDFInfo
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- CN85107808A CN85107808A CN85107808.7A CN85107808A CN85107808A CN 85107808 A CN85107808 A CN 85107808A CN 85107808 A CN85107808 A CN 85107808A CN 85107808 A CN85107808 A CN 85107808A
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- circuit element
- chip type
- type circuit
- pcb
- dust collecter
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Abstract
The invention discloses a kind of method and effect equipment thereof that chip type circuit element is installed on printed circuit board (PCB), thereby it does not need to dispose an X-Y workbench and has simplified the structure of this device, and has shortened a circuit element is installed to the time required on the printed circuit board (PCB).Pick up chip type circuit element by the many dust collecters that are contained in each installation head, they be sent to one in and turning part, be installed to step by step on the printed circuit board then.The characteristics of installation head be when it during Y side's reciprocating motion one time, at X to can be repeatedly reciprocating.
Description
Generally speaking, the present invention relates to a kind of method and equipment therefor thereof that chip type circuit element is installed on printed circuit board (PCB) and be particularly related to a kind of like this method and a kind of device that is suitable for organizing a high efficiency production line.
By convention, having built up on the production line at one generally is to come that in this way chip type circuit element is installed to printed circuit board (PCB) to get on: available thereon suction is inhaled at least an installation head of a chip type circuit element, is fixed on a printed circuit board (PCB) and will installs on the position of a chip type circuit element and (hereinafter be referred to as " circuit element installation site " or " installation site ").Or with a kind of like this installation method: provide one to pick up chip type circuit element one by one and be sent to the circuit element installation site and go to install in the installation head of X-Y direction motion by digital control or other similar control method.
But previous technical process has shortcoming: the production line that organize is very long, and it is very difficult to change an installation head.The process in back is the Dan Harrigan people's such as (Harigane) that publishes in February 8 nineteen eighty-three United States Patent (USP) us-A4, and is disclosed in 372,802.As by what learnt in this part United States Patent (USP), it also has a shortcoming: it can't shorten a chip type circuit element is installed to the time required on the printed circuit board.It also has another shortcoming: it makes the manufacturing cost height of a circuit element erecting device.
Also has the another kind of actual conventional mounting technology of using on production line.The circuit element erecting device that it is suitable for using a kind of like this method to constitute: depositing the letter automatically person's pay-off being configured to respectively corresponding with each the circuit element installation site on the printed circuit board on the position of various different model chip type circuit elements be housed in it with many, like this, by means of many vacuum cups many circuit elements that differ from one another are installed on this piece circuit board simultaneously.The device of this traditional structure has shortened to finish effectively to be installed the required time.But its shortcoming is to make a large amount of chip type circuit elements of changing bother very much.It also has another shortcoming: employing deposits the letter automatically, and person's pay-off makes this device structurally become quite complicated.
A kind of traditional circuit element mounting process was also proposed, it is made up of several procedures can be according to giving fixed erection sequence feeding chip type circuit element progressively from many circuit element feed appliances, and by an installation head circuit element is installed on the printed circuit board one by one.Printed circuit board (PCB) is then moved by an X-Y workbench.But regrettably, this traditional technology but should not be used to organize a production line, because used erecting device size is too big, and must comprise the X-Y workbench.
A used chip type circuit element installation head of conventional mounting device is to constitute like this: realize moving both vertically of a dust collecter by a cylinder, make dust collecter pick up a chip type circuit element with a vaccum suction tube, vaccum suction tube is communicated with each dust collecter respectively from cylinder, and it also links to each other with a vacuum valve with an air filter.The effect of air filter is to prevent that external substance from entering vacuum valve and this valve is damaged, and the effect of vacuum valve is to close and open the vacuum draw passage that communicates with dust collecter, thereby makes dust collecter can pick up and put next chip type circuit element.But its shortcoming of the installation head of this structure is: make its installation head structure of being adorned of a sort circuit element fixing apparatus very complicated, thereby price is expensive and size is big.
Used a kind of installation head can be divided into two kinds of patterns in a kind of conventional mounting equipment, a kind of is that single suction head dummy or this pattern have one by the vertical single dust collecter that promotes of a cylinder, and another kind is that many suction head dummys or this pattern have a plurality of a plurality of dust collecters by the vertical promotion of cylinder institute of installing corresponding to dust collecter.In the installation head of every kind of pattern, air feed makes a piston that is connected with dust collecter on it can overcome stiction in the cylinder and many times of needs for vertical movement in cylinder.And, in case the piston that has moved, since dynamic friction less than static friction with the action of higher speed and, till before this high speed motion will proceed to piston always and stops, this specific character has hindered to pick up a chip type circuit element or hinder by means of dust collecter and a circuit element that picks up has been installed to a substrate or a printed circuit board gets on.Specifically, this circuit element there be not big acceleration in order to move both vertically when picking up a chip type circuit element and being installed on a substrate or the printed circuit board (PCB) to the circuit element that this piece sucks up at dust collecter, wish this motion: begin with lower speed, reach maximum speed in the centre, before stopping, speed is lowered greatly.But a this conventional mounting used cylinder does not design by finishing this motion of dust collecter.Therefore, traditional installation head, the cylinder speed of service design very lowly so that aspirated and keep the action of a chip type circuit element to finish reliably, so cause operational efficiency significantly to worsen.
And the testing agency that the dust collecter that a kind of traditional being used for detects single each installation head of suction head dummy picks up the chip type circuit element situation can be used for detecting the aspiration vacuum pressure of dust collecter.But there is insecure shortcoming in service in this traditional testing agency, because gas leakage makes the pull of vacuum instability between the circuit element that is picked up owing to dust collecter.Therefore, a position and an attitude that picks up circuit element can not detect in this traditional testing agency.In more detail, this traditional testing agency can not be the correct body position of a chip type circuit element 58 that is picked up by dust collecter 46 shown in Fig. 1 (A) and Fig. 1 (B) to 1(D) among each figure picked up chip type circuit element 58 the incorrect posture difference come.
In addition, in the testing agency of single suction head dummy installation head, adorn some fixing photosensors to detect whether existing and attitude of a chip type circuit element effectively.In the testing agency of this structure, these photosensors flatly are installed on some specific positions of a frame base side, rather than be contained in an installation head side, and be to install in the mode that the angle between mutually can change, so just can whether exist and attitude to detect a chip type circuit element from the light that these photosensors are launched differing heights.But there is a shortcoming in this traditional testing agency, needs large space of two or more photosensors and needs that these photosensors are installed exactly.
In the testing agency that the head dummy of suction more than installation head is used, each dust collecter all is equipped with a vacuum sensor, and this testing agency lacks functional reliability and can not detect a wrong attitude that picks up chip type circuit element.Consider these shortcomings, just proposed a kind of testing agency that adopts photosensor.But in fact but can not there be a space that guarantees to install these photosensors in this mechanism that is proposed.
The present invention differentiates that the above-mentioned shortcoming in the prior art puts forward.
Therefore, one of purpose of the present invention provides a kind of method that chip type circuit element is installed on printed circuit board (PCB), it can shorten significantly and a chip type circuit element is installed to a printed circuit board gets on the required time, and it can also organize a high efficiency production line.
Another object of the present invention provides a kind of method that chip type circuit element is installed on printed circuit board (PCB), it can need not to dispose an X-Y workbench, thereby simplifies the structure of an erecting device implementing this method widely.
The 3rd purpose of the present invention provides a kind of method that chip type circuit element is installed on printed circuit board (PCB), it can decide program according to giving, very fast change circuit element installation site in a printed circuit board scope that dust collecter covered.
The 4th purpose of the present invention provides a kind of method that chip type circuit element is installed on printed circuit board (PCB), it can give on the fixed feed track mobile printing circuit board step by step at one, and can organize a high efficiency production line.
The 5th purpose of the present invention provides a kind of device that chip type circuit element is installed on printed circuit board (PCB), it can shorten significantly a chip type circuit element is installed to the time required on the printed circuit board, and can organize a high efficiency production line.
The 6th purpose of the present invention provides a kind of device that chip type circuit element is installed on printed circuit board (PCB), it can economize configure X-Y workbench with simplified structure greatly.
The 7th purpose of the present invention provides a kind of device that chip type circuit element is installed on printed circuit board (PCB), it can decide program according to giving, very fast change circuit element installation site in a printed circuit board scope that dust collecter covered.
The 8th purpose of the present invention provides a kind of device that chip type circuit element is installed on printed circuit board (PCB), it can give on the fixed transfer passage mobile printing circuit board step by step at one, and can organize a high efficiency production line.
The 9th purpose of the present invention provides a kind of device that chip type circuit element is installed, the circuit element installation head that it has a structure to simplify greatly on printed circuit board (PCB).
The of the present invention ten purpose is that it can simplify the structure of this erecting device greatly for a circuit element erecting device provides a chip type circuit element installation head.
The 11 purpose of the present invention provides a kind of device that chip type circuit element is installed on printed circuit board (PCB), it can be applied to the mode that an acceleration on the chip type circuit element cuts to bone and at full speed carry out this installation with a kind of making.
The 12 purpose of the present invention is to provide a kind of chip type circuit element installation head for a circuit element erecting device, it is suitable for replacing a cylinder to activate a dust collecter with the bar that moves both vertically, thereby available a kind of desirable installation rate characteristic is finished the installation to circuit element, is applied to an acceleration on the circuit element total installation rate that cuts to bone this moment and then greatly improves.
The 13 purpose of the present invention provides a kind of device that chip type circuit element is installed on printed circuit board (PCB), it can detect whether suct a chip type circuit element and attitude thereof on the dust collecter effectively.
The 14 purpose of the present invention is for a circuit element erecting device provides a kind of testing agency that picks up chip type circuit element, and it can be finished the existence of a circuit element and the testing of attitude effectively by means of the single photosensor of each dust collecter.
A kind of chip type circuit element is installed to the method that printed circuit board (PCB) gets on according to the invention provides, it comprises that some operations pick up chip type circuit element by means of many dust collecters from a circuit element feed portion section like this, and these dust collecters are contained in one and are configured in the installation head on the X-Y work title; With hold on a described dust collecter described chip type circuit element from described feed portion section be transported to one to neutralization upset portion section so that described chip type circuit element is carried out centering, and when needed it is overturn; And step by step described chip type circuit element is installed to the many of each described printed circuit board (PCB) and gives on the fixed circuit element installation site.
In a most preferred embodiment of the present invention, installation head has such movement characteristic: when it when the Y direction is done a reciprocating motion, finish repeatedly reciprocating motion at directions X.
In a preferential embodiment of the present invention, the stroke that many suctions are configured in directions X designs less than the printed circuit board (PCB) length sum of total configured length of dust collecter and directions X.
According to the present invention, also provide a kind of chip type circuit element has been installed to the device that printed circuit board (PCB) gets on, it comprises an installation head that is configured on X-Y work title: many dust collecters that can be for vertical movement with respect to installation head are housed; On the circuit element shift position, expose a feeding machanism by the chip type circuit element of each bar chip conveyer belt; A printed circuit board (PCB) supporting device is used for supporting the printed circuit board (PCB) of circuit element to be installed; And some and corresponding centering of dust collecter and switching mechanism, it still is configured between feeding machanism and the printed circuit board (PCB) supporting device.
In a preferential embodiment of the present invention, the feeding machanism of configuration is corresponding with dust collecter on number, and these dust collecters just pick up chip type circuit element from these feeding machanisms.
And, also provide a kind of device that chip type circuit element is installed according to the present invention on printed circuit board (PCB), which comprises at least: but single suction head dummy installation head of a band vertical moving dust collecter: and the chip type circuit element that feeding machanism carries on making by at least one chip conveyer belt on the chip type circuit element shift position can expose; A printed circuit board (PCB) supporting device supports the printed circuit board (PCB) of chip type circuit element to be installed thereon, and it is configured between feeding machanism and the printed circuit board (PCB) supporting device.
In a preferential embodiment of the present invention, the chip type circuit element erecting device comprises that also a testing agency is used to detect the pick up situation of a chip type circuit element on dust collecter.
In a preferential embodiment of the present invention, testing agency comprises: a movable support is configured to and can moves both vertically with respect to installation head, thereby but make install with the dust collecter vertical moving; Also have one and be configured on the movable support, have a photosensor that detects the light parts; Whereby, can detect whether pick up chip type circuit element on the dust collecter, then can detect the wrong attitude of the chip type circuit element that picks up on the dust collecter at the movable support down position in the movable support lifting position.
In a preferential embodiment of the present invention, the photometry parts of photosensor are included in the dust collecter end profile and dress up opposite one another a luminous component and a light absorbing part branch.
In addition, provide a kind of installation head according to the present invention for the table apparatus that chip type circuit element is installed on printed circuit board (PCB), it comprises: one is drawn onto dust collecter on it to chip type circuit element; A cylinder block, it is become a cylinder chamber and a vacuum chamber by a channels separated; The piston that can do slip with respect to described cylinder chamber, this piston comprise a lower beam part and a upper boom part that puts in vacuum chamber by separator of stretching out from the cylinder block lower end; A vacuum draw passage that is arranged in piston, it is from connecting the terminal upper end that extends to the upper boom part of lower beam part of dust collecter; Also have an air filter that is configured in upper boom part upper end, thereby can close the upper end of vacuum draw passage.
In addition, also for the table apparatus that chip type circuit element is installed on printed circuit board (PCB) provides a kind of installation head, it comprises according to the present invention: one is drawn onto dust collecter on it to chip type circuit element; One is configured to the vertical rod that can move both vertically; Thereby one is arranged in the vacuum draw passage that this vertical rod is communicated with dust collecter; A supporting member is used for thereon supporting rod slidably; A follower that is connected with vertical rod and drives by a cam mechanism; Also has one to the spring that presses down vertical rod.
And, provide a kind of chip type circuit element checkout gear according to the present invention for the table apparatus that chip type circuit element is installed on printed circuit board (PCB), it comprises: one is mixed with and can makes movable support for vertical movement with respect to installation head, a vertically moving dust collecter is housed on the installation head; One is equipped with a photosensor that is configured in photometric measurer section on this movable support; Whereby, but whether detection chip type circuit element picks up on dust collecter on the lifting position of this movable support, then can detect the wrong attitude that is picked up chip type circuit element on dust collecter on the down position of this movable support.
In a preferential embodiment of the present invention, the photometry parts of photosensor are included in the dust collecter end profile and dress up opposite one another a luminous component and a light absorbing part branch.
, can understand better and be easy to estimate projects of the present invention and many bonus referring to following elaborating in conjunction with each accompanying drawing, the identical identical part in addition of expression in each accompanying drawing.Each accompanying drawing is:
Fig. 1 is that chip type circuit element is inhaled the attitude schematic diagram on dust collecter, and wherein 1A represents the correct attitude of chip type circuit element, and each figure of Figure 1B to 1D represents its wrong attitude;
Fig. 2 is that a perspective representation is applicable to enforcement, according to method of the present invention, an example of a kind of device of chip type circuit element is installed on printed circuit board (PCB);
Fig. 3 is the front view of device shown in Figure 2;
Fig. 4 is the end view of device shown in Figure 2;
Fig. 5 is a schematic diagram of representing sequence of motion in Y-axis and vertical direction;
Fig. 6 be the expression installation head between X-direction displacement l and adjacent installation head distance concern schematic diagram;
Fig. 7 is a schematic diagram, the expression installation head in the displacement l of X-direction and covering one printed circuit board along the relation between each subregion dust collecter number of X-direction;
Fig. 8 is chip type circuit element is installed in expression on printed circuit board (PCB) according to the present invention a kind of side cutaway view that installs an one embodiment;
Fig. 9 is the front view that device shown in Figure 8 is represented its essential part;
Figure 10 is the side-looking section of one of its chip type circuit element feed mechanism of expression in load map 8 shown devices;
Figure 11 is in load map 8 shown devices, represent its chip type circuit element in and the side cutaway view of switching mechanism;
Figure 12 is that the chip type circuit element installation head is represented its a kind of follow-on partial cut away side views, and it is suitable for according in a kind of circuit element erecting device of the present invention;
Figure 13 is an installation head rearview shown in Figure 12;
Figure 14 is that the chip type circuit element installation head is shown its another kind of follow-on end view;
Figure 15 is the configurations of some installation head shown in Figure 14 of a plan representation on a bearing support;
Figure 16 is the front view of Figure 15;
Figure 17 is the end view that installation head shown in 15 is represented its cam drive part;
Figure 18 is the front view of Figure 17;
Figure 19 detects the right side view that a chip type circuit element of being inhaled on suction tube is represented its testing agency;
Figure 20 is the part section left side diagrammatic sketch of testing agency shown in Figure 19;
Figure 21 is the front view of expression testing agency shown in Figure 19 major part;
Figure 22 is the bottom view of Figure 21;
Figure 23 to 25 represents that respectively testing agency position between axle sleeve and the dust collecter in each working stage concerns front view.
The detailed description of most preferred embodiment
Below, elaborate a kind of in conjunction with the accompanying drawings according to the method for chip type circuit element and the used a kind of device thereof on printed circuit board (PCB), installed of the present invention.
Fig. 2 to 4 illustrates an embodiment of a kind of device that constitutes one section production line, and this production line then is used for implementing the method that chip type circuit element is installed of the present invention on printed circuit board (PCB).
Device shown in Fig. 2 to 4 comprises a frame base 10, and a printed circuit substrate transfer device 12 is housed in its front portion.This conveyer comprises a pair of slide rail 14, article one, conveyer belt 16, it is used for being transmitted in the printed substrate that slides on the slide rail 14 by the arrow A direction, one is used for making to printed circuit board (PCB) 18 time plate 18 be positioned to give part 20 on the allocation and a retainer 22 that makes printed circuit board (PCB) 18 stop at and give on the allocation in that a chip type circuit element is installed.
Shown in the sort circuit element fixing apparatus also comprise a scaffold 24, it is contained on the printed circuit substrate transfer device 12 to cover it.In scaffold 24, an X-y to be housed to move title 26, it comprises: a Y is to sliding axle 28; A Y is to helical axis 30; One is bearing in the Y of Y on sliding axle 28 to slide block 32, thereby it can prolong Y to slip, and with by a Y to the Y of motor driven to helical axis 30 screw-threaded engagement; An X is to sliding axle 36; An X is to the helical axis (not shown); And one be bearing in the X of X on sliding axle 36 to sliding shoe 38, thereby it can slide along directions X, and with the X that drives along directions X to motor 40 by an X to the helical axis screw-threaded engagement.
Shown in erecting device also comprise more than one the installation head 44 of suction head dummy, it is fixed on the lower end of X to slide block 38.In described embodiment, install 44 and comprise 10 at the dust collecter of X to equidistant configuration.Each dust collecter 46 is connected with a cylinder 48 that makes it produce and move both vertically.This device also comprises the feeding mechanism 50 that is contained on the frame base 10, and it is used for chip type circuit element is sent to installation head 44, also comprise be contained between feeding mechanism 50 and the connecting gear 12 in and switching mechanism 52.In this and switching mechanism 52 comprise some and those 10 dust collecters, 46 corresponding cross sections, these cross sections be suitable for mutual incoherent mode finish in and rotary movement.
Some chip conveyer belts import in the feeding mechanism 50, and some chip type circuit elements are arranged on every band, and these conveyer belts are from a chip conveyer belt drum mechanism built 56 that is contained in frame base 10 rear portions.Have chip type circuit element on these chip conveyer belts 54 respectively corresponding to 10 dust collecters 46.Described embodiment constitutes like this, make circuit element on the conveyer belt of sending here by chip conveyer belt drum mechanism built 56 54, can the circuit element that is positioned at a regulation of feeding mechanism 50 front ends transmit or the shift position on be sucked 46 and directly suck up, feeding mechanism 50 is shown in the P of Fig. 4
1The place.
Set forth the method for implementing above-mentioned technology below in conjunction with accompanying drawing 2 to 7.
At first, installation head 44 moves to the transmission or the shift position P of feeding mechanism 50 front ends
1The place, cylinder 48 dust collecter 46 that works pushes away downwards then, makes dust collecter 46 to extract or to pick up chip type circuit element from chip conveyer belt 54 by pull of vacuum and then by cylinder 48 dust collecter 46 is moved.After this as shown in Figure 4, installation head 44 moves horizontally one apart from a, arrive in and position P above the switching mechanism 52
2, cylinder makes to bleed and 46 dips herein.At this moment, dust collecter unclamps under the pull of vacuum of cylinder, with chip type circuit element is sent to in and switching mechanism 52, chip type circuit element is carried out centering, also overturn in case of necessity, for example change at every turn 90 or 45 the degree.To in and rotary movement after, each dust collecter 46 usefulness pulls of vacuum hold chip type circuit element and they move one the distance mouthful.Then, installation head 44 X to Y to moving so that dust collecter 46 gives the action of deciding progressively to install on the circuit element installation site circuit element 10 of printed circuit board (PCB) 18, its position is corresponding with interior each chip type circuit element of scope shown in Figure 4.After this, install 44 and get back to the delivering position P that is positioned at feed arrangement 50 front portions
1On.
Fig. 5 is illustrated in the P of Fig. 4
1, P
2, P
3Shown on the position Y of each dust collecter 46 to moving and vertical moving.Point out the order that moves corresponding to the numeral of each arrow among Fig. 5.In described device, the circuit element installation site P on the printed circuit board (PCB)
3Number be 10 because 10 such dust collecters 46 are housed in the installation head 44.Like this, the action shown in the arrow among Fig. 56 and 7 will repeat 10 times.In this case, remove P
3Outside the position, P
1And P
2Each locational installation action is shared at peculiar chip type circuit element on each dust collecter 46, like this, a circuit element is installed to the needed time just can shorten significantly on the printed circuit board.
In the action of above general introduction, installation head 44 Y to effective exercise finish under these circumstances: install 44 only at Y to making a round trip; To in and finish on the switching mechanism 54 in and after the rotary movement, by means of dust collecter 46, according to in and the distance of switching mechanism circuit element is installed on the printed circuit board (PCB) 18; And according to the Y direction in and switching mechanism 52 after being installed to last chip type circuit element on the printed circuit board (PCB) 18 on the installation site farthest, installation head 44 is got back to home position P
1Such situation make installation head 44 Y to motion minimize degree.In this case, installation action is implemented by this way: during installation head is got back to the home position, the printed circuit board (PCB) of having finished installation action thereon moves to down each position, and next printed circuit board (PCB) is then following, and this has just further improved efficiency of movement.
Fig. 6 represent installation head X to displacement and adjacent installation head between the correlation of distance.In Fig. 6 L and l represent respectively installation head length and installation head X to stroke; Therefore, the L+(l+d) distance of expression between the adjacent installation wherein is therebetween gap width when two installation head are moved on direction near each other.And, when printed circuit board (PCB) X to Y to length respectively with l
xAnd l
yGap width between representative and the printed circuit board (PCB) is when representing with G (as shown in Figure 6), printed circuit board (PCB) send spacing l to
tJust can be with G+l
xRepresent.As seen from Figure 6, installation head X to stroke reduce the distance between the installation head is reduced.Like this, just can greatly reduce, and the dust collecter scope that covers printed circuit board (PCB) has also reduced by dispose its total length of production line that many this devices organize along conveyer.What in addition, the shortening of the distance between the installation head made printed circuit board (PCB) sends spacing l to
tReduce, thereby further also shortened the needed time of printed circuit board (PCB) of sending to.
Relation between the dust collecter number that Fig. 7 represents stroke to be installed and to be covered regulation zone on the printed circuit board (PCB), the spacing between the dust collecter 46 that disposes among the figure represents that with P the stroke l of installation head 44 between x then stipulates to equal 4P.In this case, suppose printed circuit board (PCB) is divided into several districts at the spacing P of X between dust collecter 46 that then each dust collecter 46 can be towards the distance of a left side and the mobile 2P in the right; Like this, seven centers of printed circuit board (PCB) can be covered by four dust collecters, and the number of dust collecter strengthens along with the distance of leaving the printed circuit board (PCB) center and reduces.Similarly, when l=2P, l=6P and l=8P, the dust collecter number in each district of covering printed circuit board (PCB) just as shown in Figure 7.Therefore, it should be noted that each center of printed circuit board (PCB) is covered by many dust collecters, the dust collecter number that covers other district then strengthens along with the centre distance of leaving this plate and reduces gradually.And as installation head stroke l during greater than the general arrangement length of configuration dust collecter, then all these just can be covered by any one dust collecter.In addition, when stroke l greater than this printed circuit board (PCB) X to length l
xDuring with dust collecter general arrangement length sum, then all these dust collecters can both cover this printed circuit board (PCB).Yet the increasing of l causes that distance strengthens between the installation as mentioned above, and the production line that must organize may significantly be extended.In fact, be to organize a production line with many said apparatus, therefore can come the selecting circuit element installation site with a kind of like this mode, make the dust collecter decreased number that covers the printed circuit board (PCB) end region to bring bad influence to operating efficiency.For example, make l less than the general arrangement length of dust collecter and printed circuit board (PCB) X to the length sum will be more suitable.And, a kind of like this selection make the installation head that is moved can be at short notice along X at full speed finishing installation action corresponding to ten circuit element installation sites on the printed circuit board (PCB).Should be noted that might not installation head X to stroke l surely outside the disposition interval P of institute some between the installation head.
The kind of the chip type circuit element that is mounted is decided by the dust collecter number basically.But,, can make the kind of circuit element reach the number that doubles dust collecter by the spacing between the circuit element being reduced 1/2 and make each circuit element move half pitch.And method of the present invention can constitute like this: change all circuit element feeding portion's sections automatically or change the kind of chip type circuit element to be installed by means of a sequencer.
Can organize a production line like this: dispose many devices as shown in Figures 2 and 3, and adopt one to install the charging machine of automatic feed printed circuit board (PCB) for this at the front end of production line, at this moment, in the rear end of production line with a unloader of collecting printed circuit board (PCB) automatically, adorn one and regulate the buffer storage that line balancing is used, load onto the device of supplying with adhesive to printed circuit board (PCB), adorn a verifying attachment of checking the installation quality of circuit element on the printed circuit board (PCB), and required similar device.
From the above as can be known, the circuit device mounting method of described embodiment can make from sending chip type circuit element to and obtain simplifying to the technical process that is installed on the printed circuit board (PCB), thereby can reduce frequency by installation head walking circuit element and make the fault degree that minimizes, reliability height when therefore carrying out installment work.In addition, this method structurally is simple, and a table apparatus that adopts can be divided into many unit.And the method for described embodiment makes used circuit element feed mechanism and installation head shared by many dust collecters.
Fig. 8 to 11 illustrates the embodiment that a kind of device of chip type circuit element is installed on printed circuit board (PCB) by the present invention.A kind of device of described embodiment also is fit to be used for implementing the foregoing circuit component mounting method.
Device shown in Fig. 8 to 11 comprises a chassis base 10, and it has one to be contained in anterior printed circuit board (PCB) or substrate delivery mechanism 12.This connecting gear 12 is suitable for supporting versatilely the printed circuit board (PCB) 18 of chip type circuit element 58 to be installed, and comprise a pair of slide rail 14, conveying (not shown go out) is used for the printed circuit board (PCB) 18 on shifting sledge 14 on the direction of regulation, one printed circuit board 18 is positioned to give to printed circuit board (PCB) the time detent mechanism (not shown) on the allocation in that chip type circuit element is installed, and is used for that substrate 18 is stopped at and gives a retainer (not shown) on the allocation.Conveyer belt, positioner can use the mode identical substantially with Fig. 2 to 4 shown device to constitute with stopper.
The device of illustrated embodiment also has a scaffold 24, and it is configured in the top of printed circuit board (PCB) connecting gear 12 to cover this mechanism.An X-y is housed in scaffold 24 moves title 26, it comprises: one is installed in X in the scaffold 24 to sliding axle 36; An X is to helical axis 60; One is bearing in the X of X on sliding axle 36 to slide block 38, thereby it can slide along directions X, and with screw thread and X to helical axis 60 engagements, 60 of helical axis by one axially be X to motor driven; A Y is to sliding axle 28, and it is configured in the side of X to slide block 38; A Y is to helical axis 30; And one be bearing in the Y of Y on sliding axle 28 to slide block 32, thereby it can slide along the Y direction, and mesh to helical axis 30 with Y with screw thread, helical axis 30 by one axial be Y to motor 34 along Y to driving.
The device of illustrated embodiment also has the head dummy of suction more than, is fixed on the installation head 44 of Y to slide block 32 lower ends.In the illustrated embodiment, installation head 44 comprise ten at X to dust collecter 46 with equidistant configuration.Each dust collecter 46 links to each other with a cylinder, to move dust collecter 46 in vertical direction.In addition, the device of illustrated embodiment also comprises the feed arrangement 50 that is installed on the frame base 10, with chip type circuit element feeding installation head 44, also have one be configured between feed arrangement 50 and the conveyer 12 in switching mechanism 52.The number of the number of feed arrangement 50 and centering switching mechanism 52 and dust collecter 46 is corresponding.To being equidistantly to prepare, it matches in the spacing of directions X and this spacing of dust collecter 46 at X for feed arrangement 50 and centering switching mechanism 52.
Each feed arrangement 50 constitutes in mode as shown in figure 10.In more detail, this feed arrangement 50 comprises a charging wheel 66 that a plurality of pins 68 are housed on it, these pins and chip conveyer belt 54 send the hole engagement to promote conveyer belt, charging is taken turns 66 and is installed on the feeding rack 70.Charging wheel 66 is contained on the rotating shaft 72 by an one-way clutch mechanism or a peppery wheel mechanism, an arm 74 is contained in the one end rotationally, the other end of arm 74 is made and is had a sector gear 76, and link to each other with the upper end of rod member 78 in position near this other end, rod member is upwards promoted by a manipulating cylinder 80, the next door that cylinder then is contained in frame base 10 can extend upward by base 10, therefore, during strokes of manipulating cylinder 80 operations (once extending), charging wheel 66 just can rotate a spacing that is equivalent to angle intervals between two adjacent pins 68.The gear 76 of arm 74 ends is meshed with the gear 82 that it is installed on the feeding rack 70.Friction pulley of figure number 84 expression collection, it is bearing on the feeding rack 70 by an one-way clutch mechanism, and is coaxial with gear 82, and meshes with second friction pulley 86, and the latter is contained in an end of supporting arm 88 rotationally.This supporting arm 88 also has thereon a reel 90 of dress rotationally, and it and second friction pulley 86 are coaxial.A single face bearing (not shown) is arranged in this second friction pulley 86, be used for controlling its rotation.
In the feed arrangement 50 of said structure, chip conveying belt 54 imports between charging spigot surface 94 of feeding racks 70 and the charging guide 96 gap 92 from its reel 56, in a conveyer belt peeling groove 98 of charging guide 96, stand a kind of processing and peel off cover tape 64, and being directed to charging wheel 66, the wheel of charging is meanwhile peelled off this chip conveyer belt 54 of cover tape off and on and is once sent a spacing to.The chip type circuit element 58 that is contained in the chip conveyer belt 54 of peelling off cover tape just exposes from the chip conveyer belt, and like this, these elements just can give fixed transmission or shift position P at the front end of feed arrangement 50
1On be sucked 46 and suck up.
The cover tape of peelling off from chip conveyer belt 54 64 is by on reel 90.At delivering position P
1Become empty quilt and peel off convex-concave embossing belt body 62 belt body discharging guider 100 below guiding is passed through frame base 10 of cover tape, here, by means of cutter 102 belt body is cut into one and gives measured length (as shown in Figure 8).
To in and switching mechanism 52 corresponding to ten dust collecters 46 configuration, can finish independently of each other in and rotary movement.Impulse motor of figure number 104 expression, it with respect to each in and switching mechanism 52 configurations (as shown in Figure 8).The output of impulse motor 104 or rotation (seeing Figure 11) are delivered to a rotating shaft 108 that vertically passes frame base 10 by a gear mechanism 106.A rotary body 110 is installed in the upper end of rotating shaft 108, and it has and a pair ofly is loaded on first supporting rod 112 on its first face rotationally by pivot pin 114.Equally, rotary body 110 with its first second vertical face in substantially the same mode a pair of second supporting rod is housed, but not shown in Figure 11.Therefore, in and switching mechanism comprise two pairs of mutually perpendicular supporting rods 112, be used for making a chip type circuit element centering.In the lower end of each supporting rod 112 spring part 116 is housed all, is used for making supporting rod 112 to the direction deflection of opening its upper end.And, rotating shaft 108 have a scotch that is fixed therein portion 118 also have one around rotating shaft install first on push piece 120, by a spring 122 it is up pushed away with respect to scotch 118.The effect of push piece 120 is to make 112 actions of a pair of first supporting rod on first.Around rotating shaft 108, push piece 124 on second also is housed, it by a stage clip 126 with respect to push piece 120 on first and upwards pushing away.Push piece 120 and 124 is being handled first supporting rod 112 and the second supporting rod (not shown) on described first and second.For this reason, push piece 120 and 124 is connected with the lower end of respective clamp bar respectively in the top on described first and second.To in and switching mechanism 52 also comprise push piece 120 on first and second and 124 shared actuated piece 128, figure number 130 expressions are contained in a pin that makes a chip type circuit element 58 placed on it on the rotary body 110.
Constitute in the above described manner each in and in the switching mechanism 52, if actuated piece 128 is mobile by being directed downwards shown in Figure 11 arrow F, last push piece 120 moves with identical therewith direction with 124, then make in the face of supporting rod 58 opens at its end, like this this in and switching mechanism just be ready to carry out centering work.
Below, the working method of embodiment device shown in Fig. 8 to 11 is described.
At first, the circuit element that installation head 44 moves to feeding device 50 front ends transmits or shift position portion, starting cylinder 48 then moves down those dust collecters 46 together, like this, these dust collecters 46 are because pull of vacuum picks up chip type circuit element 58 from the convex-concave embossing belt body 62 of peelling off cover tape 64 before.Then, suction has the dust collecter 46 usefulness cylinders 48 of circuit element to move up on it.
Then, installation head 44 move to in and the P of switching mechanism 52 tops
2Position (Figure 11).At this moment, actuated piece 128 is in down position so that in the face of opening on the top of supporting rod 112.Then, make if each cylinder 48 reruns and to move on the actuated piece 128, the vacuum degree that is added on the dust collecter 46 disappears, two pairs of supporting rods are clamped chip type circuit element together and to carry out circuit element operation are also also carried out circuit element upset operation (for example rotating 90 degree or 45 degree) in case of necessity, and this rotary movement is owing to the rotation of impulse motor 104 is carried out.After neutralization upset operation, on each dust collecter 46, form vacuum degree again, make dust collecter utilize vacuum to hold circuit element, dust collecter 46 rises and shifts to printed circuit board (PCB) then.Then, by X to Y to mobile installation head, make these dust collecters 46 aim at ten circuit element installation sites, and finish the circuit element installation action step by step.After this, installation head 44 is moved back into again and transmits or shift position P
1
Can notice like this, because in the installment work of finishing together on these positions rather than on the installation site at printed circuit board (PCB) each chip type circuit element, Fig. 8 can significantly reduce a chip type circuit element is installed to the erecting device shown in 11 and goes on the printed circuit board (PCB) the required time.
In above general introduction action, installation head 44 is issued in condition like this to the most effective motion at Y: installation head at Y to only making a round trip; To in and switching mechanism 52 places finish in and rotary movement after, by means of dust collecter 46 and according to in and the distance of switching mechanism 52, circuit element is installed on the printed circuit board (PCB), Y upwards in and be installed to last circuit element on the printed circuit board (PCB) 18 on switching mechanism 52 installation site farthest after, installation head 44 turns back to home position P
1Such condition make installation head 44 Y to decreased locomotion to bottom line.In this example, the mode of implementing this action is: during installation head is got back to the home position, the printed circuit board (PCB) of finishing installation action has moved on the next position and also next printed circuit board (PCB) has been sent, so improved the operating efficiency of this device further.
Chip type circuit element kind to be installed is decided by the number of dust collecter basically.But,, can make the kind of circuit element reach the number that doubles dust collecter by the spacing between the circuit element being reduced half and making each circuit element move half pitch.After this, illustrated embodiment can constitute in such a way: change all circuit element feeding portion's sections automatically or by means of the kind of a sequencer conversion circuit element to be installed.
From the above as can be known, the circuit element erecting device of described embodiment, can make from sending chip type circuit element to obtain simplifying to being installed in technical process on the printed circuit board (PCB), thus reliability height can reduce frequency by installation head walking circuit element and make the fault degree that minimizes therefore carry out installation action the time.In addition, this apparatus structure is simple also can be divided into many unit.And, this equipment of illustrated embodiment, many dust collecters shared these circuit element feed mechanism and installation head.
Figure 12 and 13 illustrates a kind of circuit element installation head, and it is applicable in the circuit element erecting device of the present invention and is that the structure of simplifying this erecting device is made.
Among Figure 12 and 13, the light body of a cylinder of figure number 140 expressions.The inner chamber of light body 140 is divided into a cylinder chamber 142 and a vacuum chamber 144 by a separator 146.A piston 148 of this air cylinder comprises that a lower beam part 150 of stretching out from the lower surface of light body 140 and one pass separator 146 and extend into upper boom part 152 vacuum chamber 144 downwards, and be configured to and can slide with respect to cylinder chamber 142, make whole between these two parts are mutual.Made a vacuum draw passage 154 in the piston 148, it extends to the back or upper surface of upper boom part 152 from the preceding or lower surface of lower beam part 150.Have at least a dust collecter 46 of wherein making a through hole class example tubulose to be connected with the lower end of the lower beam part 150 of piston 148.The upper boom part 150 of piston 148 end face thereon is equipped with an air filter 156 securely.This air filter 156 for example can comprise the plate of a perforation.Piston 148 is always pushed up by last by a return spring 158.
Installation head is installed in a vacuum valve 160 and an air valve 162 in cylinder block 140 outsides in addition.Vacuum valve 160 can comprise a reversal valve, and it communicates with a vacuum pipe when picking up a circuit element on the dust collecter, and it communicates with a liberation port when dust collecter unclamps a circuit element.Air valve 162 can comprise a reversal valve, and it gains between a pressure circuit and a release loop.Vacuum valve 160 is communicated with vacuum chamber 144 by a SS 164 of making on the body 140, and air valve 162 is then by passing the air vent 166 that light body 140 makes and be communicated with cylinder chamber 142.And, as shown in figure 13, to make on the light body 140 and have a steam vent 168, it is communicated with the bottom of cylinder chamber 142.Embedded a magnet 170 in the piston 148, a magnet sensor 172 then has been housed on light body 140 outer walls, detected the position of magnet 170 when piston 148 is in lifting position with it.In addition, piston upper end is made and is had 174, one vacuum sensors in a hole and link to each other with light body 140 by it.Garden ring spring packing ring that is assemblied on the piston of figure number 176 expressions, when descent of piston arrived to a certain degree, this spring washer just was adjacent to the lower wall of cylinder chamber 142 to place restrictions on the descending of piston.
In the installation head 44 of said structure, the effect of cylinder is the cylinder of quite unidirectional scavenging action, in more detail, when air valve 162 is opened, during to cylinder chamber 142, piston 148 is descending through air vent 166 for compressed air, thereby causes the dust collecter 46 that links to each other with the lower beam portion 150 of piston 148 also descending.Owing to being adjacent between spring washer 176 and cylinder chamber 142 lower walls is restricted the decline of piston.Change emptying state over to and cylinder chamber 142 is communicated with atmosphere by air valve 162, dust collecter 46 is got back to lifting position, so just makes piston 148 get back to lifting position because of the power of return spring 158.
By unlatching vacuum valve 160 with through SS 164, vacuum chamber 144, the vacuum draw passage 154 of air filter 156 and piston 148 makes vacuum degree pass to dust collecter 46, thereby a chip type circuit element is inhaled on dust collecter 46.When a kind of assorted (for example dust or analog) in aspiration procedure when dust collecter enters vacuum pick-up system, just directly stop it enters vacuum valve 160 to prevent it to air filter 156, guarantees effective work of vacuum valve whereby.
This shows that above-mentioned installation head is contained in air filter in the cylinder, saved this jockey of for example section of a pipe that air filter and vacuum valve and cylinder are coupled together, thereby greatly simplified structure.
The another kind of remodeling installation head that is applicable to erecting device of the present invention of Figure 14 to 18 expression.In this remodeling, the installation head 44 of many single suction head dummys (is seen Figure 15 and 16) equidistantly to be vertically mounted on the frame base 24, and each of these installation head 44 all has same structure.
(it is a cutaway view along the VI of the X among Figure 16～X VI line is got) as shown in figure 14, installation head 44 comprises: thus one be fixed on upwardly extending supporting member 140 on the frame base 10 ', thereby one be contained in supporting member 140 ' the inside can be vertically, with respect to the rod member 148 of this supporting member 140 ' slip ', and a vacuum valve 160 and a magnetic slide valve 180 of being fixed on this supporting member 140 ' outside.This vertical rod 148 ' lower end and a dust collecter 46 of for example making hollow cylindrical match, form a vacuum draw passage 154 in the bar, its lower end is that we opens thereby is communicated with dust collecter 46.And, vertical rod 148 ' the side made one perpendicular horizontal 182, a through hole 166 of supporting member 140 ' then made '.Vacuum valve 160 by suction channel 166 ' and perpendicular horizontal 182 be communicated with vertical rods 148 ' vacuum draw passage 154.In addition, a groove 184 of vertical rod 148 ' made on its outer surface, it with one be fixed on supporting member 140 ' on spline part 186 be meshed.
Vertical rod 148 ' also made a vertical slot 188 at its outer surface, 190 engagements of this groove and one lock bluff piece, the lock pawl then be installed in rotation on supporting member 140 ' on.Lock bluff piece 190 is connected with magnetic slide valve 180 in the top, and when guiding valve 180 did not activate, the lock bluff piece was relevantly meshing with groove 188 owing to the effect of a tensioning spring 192, thereby can make vertical rod 148 ' pinning on raised position.When magnet guiding valve 180 is driven and when withdrawing, lock bluff piece 190 just breaks away from engagement with groove 188 and makes vertical rod 148 ' can be in the vertical direction free movement.Hollow spring suppress part 194 usefulness screws be screwed in supporting member 140 ' above, its upper end is sealed, the lower end is an opening.Spring suppresses to adorn a spring 196 in the part 194, it be compressed in spring prop up the upper end that suppresses part 194 and vertical rod 148 ' the upper end between, so bar 148 ' headed on downwards by spring 196 all the time.
The part of this vertical rod 148 ' between its groove 188 and upper end has two horizontal tips 198 that are fixed on both sides, and their effect is to accept extraneous steering force.Shown in Figure 14 and 15, the bottom of each horizontal tip 198 is leaned on mutually with the upper surface of corresponding idle rod 200, and idle rod 200 is fixed on the cam following axle 202, thereby the effect of pin 198 just equals a follower.Cam following axle 202 extends along its length direction, uses so be used as the shared bolster of many installation head 44.The servo motor 204 that figure number 204 expressions among Figure 17 and 18 are contained on the frame base 178 has a rotating shaft that is fixed with a cam 206, cam is close to a roller 208, roller then is contained in the end of a cam follower 210 rotationally, and this cam follower is fixed on again on the cam following axle 202.When the shape of cam 206 should be made cam rotation one circle, idle rod 200 is just finished from lifting position and is circulated to a reciprocating motion of lifting position through down position again, and rising and a reciprocating motion of down position circulates, and rise and down position idle rod 200 with low-speed motion, in the centre then with high-speed motion.And, as shown in figure 18, being fixed with an arm 212 on this cam following axle 202, it is relative with cam follower 210 and put, and makes servo motor be placed on them between the two.The direction that arm 212 makes roller 208 be close to cam 206 is subjected to the pressure of a spring (not shown).
Below, referring now to figs. 14 through 18 working methods of describing above-mentioned installation head.
The swing type of the cam following axle 202 that causes owing to the rotation of cam 206 rotates, and makes idle rods 200 corresponding with each installation head of selecting 44 move.In each selected installation head, the motionless so that vertical rod 148 of magnetic slide valve 180 ' remain on the lifting position state, thereby be parked in lifting position at the dust collecter 46 of bar 148 ' lower end.In each selected installation head, when making lock bluff piece 190 releasing slots 188 when magnetic slide valve 180 startings, vertical rod 148 ' just descending beginning the with idle rod 200 ends moves down.Bar 148 ' translational speed reach maximum in the centre position, speed reduces gradually when moving downward then.When bar 148 ' when reaching down position, the chip type circuit element 58 of a suction in dust collecter 46 lower ends just is pressed towards a printed circuit board (PCB) 18 in the above to be installed.At this moment, owing to bar 148 ' decrease speed be decreased to minimum level or very prompt to stopping to make the bump that is added on the circuit element 58 to be decreased to minimum level.Then, along with the moving lever 148 of idle rod 200 ' get back to again lifting position.
In its location and rotation process, cam 206 is just to stop after changeing half-turn at the chip circuit element on the dust collecter 46 in suction, and then changes remaining half-turn.Therefore, vertical rod is moved down position at it from lifting position and was once stopped with location and the rotation of finishing circuit element, and then gets back to lifting position.
By the above as seen, installation head shown in Figure 14 to 18 is to constitute like this: drive dust collecter by means of one by cam-actuated vertical rod rather than by means of a cylinder, thereby, the ideal movements characteristic that makes the acceleration that is added on the chip type circuit element be decreased to minimum level can show in the moving both vertically of dust collecter, more detailedly say smartly, at lifting position and down position circuit element with low-speed motion, then with high-speed motion, acceleration to the minimum level that reduces whereby to be added on the circuit element also improves total speed that moves both vertically greatly in the centre position.And, to compare with cylinder used in the traditional installation head, cam mechanism drives has higher reliability, and therefore, these independently move and can finish in the mode that intermeshes.For example, this vertical rod just can begin to move before an X-y work title stops fully, so just can find out, this installation head shown in Figure 14 to 18 can make whole erection work to finish and to have improved reliability at a high speed.
Erecting device of the present invention can comprise a checkout gear that is used to detect the chip type circuit element of suction on a dust collecter.Figure 19 to 22 illustrates a kind of a kind of like this checkout gear that is applicable to erecting device of the present invention.A kind of checkout gear shown in Figure 19 to 22 is applicable to many suction head dummy installation head, and corresponding to each dust collecter configuration.General a kind of installation head of representing with figure number 44 comprises: a head frame 220; With the equidistant many cylinders 48 that are fixed on the head frame 220; Many taps 46, each all links to each other with corresponding cylinder 48, a chip type circuit element is picked up and keep above it.This head frame 220 is fixed the support plate 222 of each dust collecter 46 at one at it, a fixed support 224 fixes with this support plate 222, this supporting member 224 supports a L shaped slide block 226 of example slidably last again, and its effect is equivalent to a movable support.Each dust collecter 46 all is equipped with one and falls L shaped slide block 226, thereby they can move both vertically with respect to fixed support 224.Each slide block 226 has a screw 228 that is screwed thereon, and a dogbolt 230 that is used to adjust these slide block 226 down positions also is housed.In addition, support plate 222 has a spring catch 232 that tightly inserts wherein, and its effect is to support a compression helical spring 234 thereon, is used for promoting slide block 226 downwards, and like this, slide block 226 just can compress spring 234 by this to be promoted downwards.
As shown in Figure 22 to 25, this effect of falling L has the photometry parts of a single photosensor as the slide block 226 of movable support, and it is included in the dust collecter end profile and dresses up an opposed luminous component and a light accepting part branch mutually.And an axle sleeve 240 is fitted together with mode and the slide block 226 that half garden surrounds dust collecter 46 ends.The luminous component 236 of photosensor and light accept to divide 238 respectively to comprise a transducer that is used for making optical axis conversion 90 degree, and mirror or prism are arranged in the transducer.Luminous component 236 is used for optical axis conversion 90 degree from 242 meters of optical fibers, and is next with the light of radiation traversed by dust collecter 46 extensions; Light absorbing part divides 238 then to be used to accept light and optical axis is changed 90 degree with the light of radiation from an optical fiber 244.Shown in the checkout gear, axle sleeve 240 is made and had seam 246, it makes light beam become very narrow, therefore, light beam B(Figure 23) radiation and receive and can be undertaken by described seam 246.Every optical fiber 242 all links to each other with a photoamplifier 248 with 244, and amplifier is contained in the side of each dust collecter 46 of installation head, and amplifier converts the light signal that divides 238 from light accepting part to the signal of telecommunication and amplified.Should be noted that if the enough crooked light-transmitting fibres 242 in space and 244 that provide around the dust collecter 46, therefore two strands of fibre-optic terminal surfaces can be opposed mutually, just need not adorn the optical axis transducer.
At first; when the bar of cylinder 258 is driven withdrawal; rod member 256 just is in the position that Figure 20 represents with solid line; each fall the screw 228 of L shaped slide block 226 activated arm 254 on push away; slide block 226 and axle sleeve 240 then are in lifting position, because the power of draw spring 260 is greater than the power summation of each stage clip 234.Axle sleeve 240 all is shown in Figure 23 in the position relation that is reached when the bar of cylinder 48 shrinks between the lifting position in lifting position and dust collecter 46.In this case, fix on through the seam 246 light beam B height gages that are transmitted into traversed by dust collecter 46 extensions by luminous component and make a quilt pick up the chip type circuit element 58 that on dust collecter 46, has correct attitude on certain standard can to cover this light beam.This set is adjusted by screw 228.Detect whether to inhale on the dust collecter from axle sleeve 240 emitted light beams B in the time of like this, just can be a chip type circuit element is arranged by lifting position.Or rather, if 234 emitted light beams B are covered by a chip-shaped circuit 58 as shown in figure 22 by luminous component, cause at light absorbing part and divide 238 meters can produce a light signal, so just can detect the situation that holds of a circuit element with suction place.But fail to detect a quilt when the lifting position by axle sleeve emitted light beams B and hold circuit element attitude on dust collecter.This respect reaches in the following manner.
The working method of the checkout gear of said structure is described below with reference to Figure 19 to 25.
Cylinder 258 is driven and extension bar, and rod member 256 is swung along clockwise direction shown in Figure 20.Rectangular axes 250 and actuator arm 254 are rotated along clockwise direction, thereby the end of actuator arm 254 is moved down.So the axle sleeve 240 that causes each to fall L shaped slide block 226 and fix on it moves to down position.When the withdrawal of the bar of cylinder 258, be in the axle sleeve 240 of down position and be in the position that is reached between the dust collecter 46 of lifting position and concern and all be shown in Figure 24 and 25.In this case, emit from luminous component 236, light beam B height gage through stitching 246 traversed by dust collecters, 46 extensions fixes on certain standard: make a quilt pick up to have in tap 46 that the chip type circuit element 58 of correct attitude does not cover light beam B as shown in figure 24, and inhale on dust collecter, being in as shown in figure 25, the circuit element of wrong attitude then covers this light beam.Such adjustment realizes by means of dogbolt 230.This shows, when axle sleeve 240 is in down position, can detect the chip type circuit element attitude of suction on dust collecter by means of radiotherapy beam B.When the light beam B arrival light absorbing part that comes out from luminous component 236 radiation divides 238 (as shown in the figure), just produce a light signal at the light absorbing part branch and come the testing circuit element to be picked up with correct attitude; When light beam B is covered, just can not produce signal, thereby circuit element is just picked up and can be detected with wrong attitude.
Thereby can find out that above-mentioned detection device not only can detect circuit element and whether be picked up on dust collecter, and can also detect a circuit element effectively and whether be sucked head and pick up with a kind of correct attitude.And this checkout gear can be applied to each dust collecter easily and be configured to go in closely spaced many suction head dummy installation head.This checkout gear also has an advantage: though it can detect all dust collecters, simple in structure.By adjustment screw 228 and dogbolt 230 consciously, this checkout gear is easy to change a detection position, even when waiting to be drawn onto those chip type circuit elements on each dust collecter in shape, also has no relations when aspects such as size are different.In addition, this checkout gear can be saved the space, because it is finished the chip type circuit element of suction on dust collecter in the detection aspect existence and the attitude with a photosensor.And this checkout gear structurally is that photosensor is contained on the installation head, and this makes the position that can keep stable between photosensor and the dust collecter concern and unlikely deflection, and the two all is easy to look for mutually directly.Moreover this structure can also make no matter which kind of position is installation head be in, even all can finish testing during it moves.
This checkout gear is suitable for doing some detections like this: detect a chip type circuit element that is sucted from aforementioned feeding mechanism by dust collecter; The attitude of a circuit element of centering body is shifted in detection; Detect centering the action existence and the attitude of a circuit element afterwards; A circuit element before detection is about to be installed on the printed circuit board.
From the above, checkout gear shown in Figure 19 to 25 in this way constitutes: the movable support that has photometry parts of photosensor is configured to can be for vertical movement with respect to the installation head that many vertical moving dust collecters are housed, so that when this movable support is in open position, detect a chip type circuit element that picks up on dust collecter, the wrong attitude of testing circuit element then on the down position of this movable support, thereby, an available photosensor detects the chip type circuit element of each dust collecter, and the structure of checkout gear can be for simplifying.
Though set forth preferential embodiment more of the present invention with reference to accompanying drawing with certain the level of detail, done some tangible changes according to principle of the present invention and be still possible.Therefore in the appended claims scope, can be different from the mode that is described in detail and write claim, this is understandable.
Claims (15)
1, a kind of method that chip type circuit element is installed on printed circuit board (PCB), form by following operation:
Pull of vacuum by means of some dust collecters picks up chip type circuit element from a circuit element feed arrangement, these dust collecters are contained in one and are configured in the installation head on the X-Y work title;
Remain on the described dust collecter described chip type circuit element from described feed arrangement be sent to one to and turning device go, described chip type circuit element carried out centering and to overturn in case of necessity;
Many the giving that described chip type circuit element is installed to each described printed circuit board (PCB) decided the circuit element installation site and got on step by step.
2, according to the described a kind of method of claim 1, it is characterized in that described installation head when it Y when carrying out a reciprocating motion at X to finishing repeatedly reciprocating motion.
3, according to the described a kind of method of claim 1, it is characterized in that described many dust collecters be configured in X to, described installation head X to stroke then be by less than described dust collecter general arrangement length and described printed circuit board (PCB) X to the length sum, determine.
4, a kind of device that chip type circuit element is installed on printed circuit board (PCB) comprises:
Installation head on an X-Y job of the configuration title;
Many dust collecters that move both vertically with respect to described installation head work are housed;
A feed arrangement, it on each bar chip conveyer belt of a circuit element shift position with described chip type circuit element expose;
A printed circuit board (PCB) supporting device is used for the supporting of the printed circuit board (PCB) of described installation circuit element in the above;
Be equipped with many and described those dust collecters corresponding in and switching mechanism, they are configured between described feed arrangement and the printed circuit board (PCB) supporting device.
5,, it is characterized in that the number of described feed arrangement and described dust collecter number are corresponding, and described dust collecter picks up described chip type circuit element from described feed arrangement according to the described a kind of device of claim 4.
6, a kind of chip type circuit element device of installing on printed circuit board (PCB) comprises:
Have at least one wherein be equipped with one can dust collecter for vertical movement the suction type installation head;
On the chip type circuit element shift position, incite somebody to action the feed arrangement that institute's microarray strip type circuit element exposes on a chip conveyer belt at least for one;
A printed circuit board (PCB) supporting device, the printed circuit board (PCB) that is used for to described chip type circuit element to be installed supports in the above; And
One corresponding to described installation head be equipped with in and switching mechanism, it is configured between described materials device and the described printed circuit board (PCB) supporting device.
7, by the described a kind of device of claim 6, it is characterized in that described installation head comprises:
A cylinder block that is divided into a cylinder chamber and a vacuum chamber by a separator;
A piston that can slide with respect to described cylinder chamber is housed, and described piston comprises that one is stretched out lower beam part and one and passes described separator and extend into upper boom part the described vacuum chamber from described cylinder block lower end;
A vacuum draw passage that is arranged in described piston, it has the lower end of the described lower beam part of described dust collecter to extend to the upper end of described upper boom part from attaching always; And
An air filter that is contained in described upper boom part upper end, thereby it is sealing the upper end of described vacuum draw passage.
8, by the described a kind of device of claim 6, it is characterized in that described installation comprises:
One is configured to vertically moving straight-bar;
One is arranged in the vacuum draw passage that described vertical rod is communicated with described dust collecter admittedly;
One described square bar sliding bearing in supporting member wherein;
One with described vertical rod engagement and the follower that drives by a cam mechanism;
The spring bag that described vertical rod is promoted downwards.
9, by the described a kind of device of claim 6, also comprise a checkout gear, be used for detecting the chip type circuit element of suction on described dust collecter.
10, by the described a kind of device of claim 9, it is characterized in that described checkout gear comprises:
But can make the movable support that moves both vertically with respect to the described described installation that the vertical moving dust collecter is housed for one; And
One has the photosensor that is configured in survey parts on the described movable support;
Whereby, on situation that picks up on the described dust collecter and down position, detect the wrong attitude that is picked up at described the above chip type circuit element of dust collecter at detection chip type circuit element on the lifting position of described movable support at described movable support.
11, by the described a kind of device of claim 10, it is characterized in that the described photometry parts of described photosensor comprise: a luminous component and a light absorbing part branch, they are contained in the side on described dust collecter top and opposite one another.
12, a kind of installation head that is used for installing the chip type circuit element device on printed circuit board (PCB) comprises:
One described chip type circuit element suction dust collecter thereon;
One by a cylinder block that is separated into a cylinder chamber and a vacuum chamber;
Be provided with a piston that can slide with respect to described cylinder chamber, described piston comprises that a lower beam part of stretching out from described cylinder block lower end and one pass described separator and extend into upper boom part the described vacuum chamber;
A vacuum gas suction channel that is arranged in described piston, it has the lower end of the described lower beam part of described dust collecter to extend to the upper end of described upper boom part with attaching always; And
An air filter that is contained in described upper boom part upper end, thereby it is sealing the upper end of said vacuum draw passage.
13, one is applicable to installation chip type circuit element Unit Installation head on printed circuit board (PCB), comprising:
One is used for described chip type circuit element suction dust collecter thereon;
One is configured to vertically moving vertical rod;
A vacuum draw passage that is arranged in described vertical rod thereby is communicated with described dust collecter;
A handle is stated the vertical rod sliding bearing in supporting member wherein;
One with described vertical rod engagement and the follower that drives by a cam mechanism; And
The spring that described vertical rod is promoted downwards.
14, be applicable to a kind of chip type circuit element checkout gear that the chip type circuit element device is installed on printed circuit board (PCB), comprise:
One can be equipped with a vertically moving dust collecter with respect to the movable supporter of installation head vertical moving configuration on the installation head; And
One has and is configured in the photosensor that photometry parts on the part are held in described work;
Thereby, on situation that picks up on the described dust collecter and down position, detect the wrong attitude that is picked up at described the above chip type circuit element of dust collecter at detection chip type circuit element on the lifting position of described movable support at described movable support.
15, by the described a kind of checkout gear of claim 14, it is characterized in that the photometry parts of described photosensor comprise a light part and a light absorbing part branch, they are contained in the side on described dust collecter top and mutually opposed.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP106056/85 | 1985-05-20 | ||
| JP60106056A JPS61264788A (en) | 1985-05-20 | 1985-05-20 | Chip part mounting machine |
| JP1985086380U JPH0334956Y2 (en) | 1985-06-10 | 1985-06-10 | |
| JP86380/85 | 1985-06-10 | ||
| JP1985090162U JPH0334957Y2 (en) | 1985-06-17 | 1985-06-17 | |
| JP90162/85 | 1985-06-17 | ||
| JP113797/85 | 1985-07-26 | ||
| JP1985113797U JPH0334958Y2 (en) | 1985-07-26 | 1985-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85107808A true CN85107808A (en) | 1987-01-28 |
| CN1007692B CN1007692B (en) | 1990-04-18 |
Family
ID=27467253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85107808 Expired CN1007692B (en) | 1985-05-20 | 1985-09-10 | Process for mounting chip type circuit elements on printed circuit boards and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007692B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056491C (en) * | 1993-11-30 | 2000-09-13 | 山田尖端科技公司 | Transport-by-suction type mold |
| CN1057423C (en) * | 1993-11-30 | 2000-10-11 | 山田尖端科技公司 | General-purpose lead working machine |
| CN1984554B (en) * | 2005-12-12 | 2010-09-08 | 西门子电子装配系统有限责任两合公司 | Support pin for supporting a substrate populated with electric components |
| CN1739186B (en) * | 2003-01-16 | 2010-10-13 | Nxp股份有限公司 | Chip transfer method and apparatus |
| CN110278703A (en) * | 2019-07-19 | 2019-09-24 | 格力电器（武汉）有限公司 | A kind of remote controller battery cover detection device, system and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372085C (en) * | 2004-02-05 | 2008-02-27 | 华硕电脑股份有限公司 | Automatic assembing machine |
-
1985
- 1985-09-10 CN CN 85107808 patent/CN1007692B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056491C (en) * | 1993-11-30 | 2000-09-13 | 山田尖端科技公司 | Transport-by-suction type mold |
| CN1057423C (en) * | 1993-11-30 | 2000-10-11 | 山田尖端科技公司 | General-purpose lead working machine |
| CN1739186B (en) * | 2003-01-16 | 2010-10-13 | Nxp股份有限公司 | Chip transfer method and apparatus |
| CN1984554B (en) * | 2005-12-12 | 2010-09-08 | 西门子电子装配系统有限责任两合公司 | Support pin for supporting a substrate populated with electric components |
| CN110278703A (en) * | 2019-07-19 | 2019-09-24 | 格力电器（武汉）有限公司 | A kind of remote controller battery cover detection device, system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1007692B (en) | 1990-04-18 |
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