CN1777357A - Facial mounting machine - Google Patents
Facial mounting machine Download PDFInfo
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- CN1777357A CN1777357A CN 200510125332 CN200510125332A CN1777357A CN 1777357 A CN1777357 A CN 1777357A CN 200510125332 CN200510125332 CN 200510125332 CN 200510125332 A CN200510125332 A CN 200510125332A CN 1777357 A CN1777357 A CN 1777357A
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Abstract
Facial mounting machine comprises: a movable member containing the nozzle and keeping the nozzle which is fixed on the nozzle shaft and moves a predetermined distance along the up-and-down direction relative to the nozzle shaft; pressure chamber disposed between the nozzle shaft and the movable member for adjusting the pressure on the movable member; pressure supporting device for providing pressure to the pressure chamber which can adjust the pressure in the range of positive pressure to negative pressure. When the facial mounting machine absorbs the mounting element and perform impact absorption function in the position of the head decreasing end, it may set the weight of the load being applied to the element lower than the movable member. Therefore, it is effectively adjust the load and easily keeping the structure for adjusting the load.
Description
Technical field
The present invention relates to a kind ofly element is adsorbed onto the element absorption that is arranged on the head unit, relate in particular to a kind of surface mounting apparatus that can alleviate the impact load of suction nozzle when absorption and installation elements with on the suction nozzle and be installed to surface mounting apparatus on the circuit board.
Background technology
As everyone knows, the surface mounting apparatus of Shi Yonging adopted following structure mostly in the past: head unit is arranged to and can be moved on the XY plane, on this head unit, load by the suction nozzle axle and be located at the installation head that the suction nozzle etc. of its bottom constitutes, and make it can lifting, the installation that utilizes this head unit with head from the component feeding portion behind the chip component such as negative-pressure adsorption IC, be sent on the printed circuit board, and attach it on the assigned position of printed circuit board.
In this type of surface mounting apparatus, though adsorb installation by making to install with the head lifting when absorption and installation elements, but suction nozzle is on the decline end position during with the element butt when absorptive element, and the adsorbed element of suction nozzle requires abirritation impaired etc. to prevent element in the impulsive force of element on the decline end position during with the circuit board butt when installation elements.Therefore, be well known that, obtain cushioning effect by comprising said suction nozzle and keeping the part of the parts of this suction nozzle to be mounted to relatively move on above-below direction with respect to the said suction nozzle axle.
For example, open in the surface mounting apparatus shown in the 2000-315894 communique the spy, use on the suction nozzle axle bottom of head in the installation that is loaded on the head unit, installation has the suction nozzle assembled block of a plurality of suction nozzles and keeps this suction nozzle assembled block and make it can center on the retainer that transverse axis rotates, and said suction nozzle assembled block and retainer can be relatively moved with respect to the suction nozzle axle on above-below direction, be provided with in addition and be used to the locking mechanism that stops retainer and suction nozzle assembled block on above-below direction, to relatively move with respect to the suction nozzle axle, near descending end, head makes locking mechanism work during the absorption installation elements in addition, the locking of mechanism then unlocks near head descends end, thereby allow the suction nozzle assembled block on above-below direction, to relatively move, play cushioning effect with respect to the suction nozzle axle.
In addition, open the spy and to disclose following content in the flat 8-330790 communique: be used for the bare chip element is loaded into bare chip fitting machine on the circuit board, has the compression spring of pushing suction nozzle downwards, lifting is used for the extension spring of the movable part of the single axis table of guiding nozzle section on above-below direction, the force cell of the loading pressure when the detection element that nozzle section is adsorbed is placed on the circuit board, and the controller that moves up and down of controlling single axis table according to the testing result of this force cell, utilize above-mentioned extension spring to offset the deadweight of above-mentioned movable part on one side, adjust loading pressure Yi Bian utilize above-mentioned controller that moving up and down of single axis table controlled.
If adopt above-mentioned spy to open the surface mounting apparatus shown in the 2000-315894 communique, though when the absorption installation elements, can play cushioning effect by near the locking of the mechanism that unlocks descending end at head, but under this state, comprise that the deadweight of the movable part of suction nozzle and this suction nozzle retaining part still can act on the element.Thereby, when the absorption of carrying out micro component and brittle component and installation,, still can't fully reduce the load that puts on the element although wish to reduce the load that puts on the element.
In addition,, owing to can offset the deadweight of movable part, thereby can be reduced to very for a short time, also can improve the adjustment degree of freedom of loading pressure putting on load on the element by above-mentioned extension spring if adopt the special surface mounting apparatus shown in the flat 8-330790 communique of opening.Yet also there is following problems: except by utilizing moving up and down of controller control single axis table to adjust the mechanism of loading pressure, also need to be provided for separately to offset the extension spring etc. of the deadweight of movable part, not only increased number of spare parts, also must guarantee the space of extension spring is set, thereby cause the maximization of equipment.
Summary of the invention
The present invention proposes just in view of the above problems, its purpose is to provide a kind of surface mounting apparatus, this surface mounting apparatus can be brought into play cushioning effect on head descends end position when the absorption installation elements, fully reduce to put on the load on the element, effectively load is adjusted, and can simply be kept for adjusting the structure of load.
In order to address the above problem, surface mounting apparatus of the present invention comprises and moves possible head unit; Lifting is arranged on the above-mentioned head unit possibly, along the vertical direction the suction nozzle axle of Yan Shening; Be installed in the bottom of this suction nozzle axle, be used for the suction nozzle of absorptive element; The parts that contain suction nozzle and keep this suction nozzle are installed on the said suction nozzle axle, and with respect to can relatively move the along the vertical direction movable part of ormal weight of this suction nozzle axle; Be arranged between said suction nozzle axle and the above-mentioned movable part, be used to adjust the balancing gate pit that is applied to the pressing force on the above-mentioned movable part; And the pressure supply unit that is used for providing pressure to above-mentioned balancing gate pit; This pressure supply unit can adjusted the pressure that offers above-mentioned balancing gate pit in the scope that just is pressed onto negative pressure.
If adopt this structure, suction nozzle and element butt or when installation elements when the adsorbed element of suction nozzle and circuit board butt when at absorptive element, can relatively move on above-below direction with respect to the suction nozzle axle by the movable part that makes the parts that contain suction nozzle and keep this suction nozzle, relax impact.
In the case, owing to can in the scope that just is pressed onto negative pressure, adjust to the pressure that offers above-mentioned balancing gate pit, so adjust the load (pressing force) that is applied on the element in can be on a large scale, especially when negative pressure is provided, for the power on the direction that promotes above-mentioned movable part is worked, can be adjusted into weight with putting on load on the element less than movable part.
And, owing to needn't be provided for offsetting the spring etc. of movable part weight separately, but thereby simplified structure.
Effectively, above-mentioned movable part comprises in surface mounting apparatus of the present invention, and having with the transverse axis is the suction nozzle assembled block of center a plurality of suction nozzles of being radial setting and the retainer that keeps this suction nozzle assembled block that it can be rotated around transverse axis; Above-mentioned balancing gate pit is arranged between above-mentioned retainer and the said suction nozzle axle.
That is to say, then to have the advantage that to select employed suction nozzle according to the element of being installed if the said suction nozzle assembled block is set.On the contrary, though increased the weight of the movable part that contains suction nozzle assembled block and retainer, because can be, so when buffering, can fully reduce to be applied to load on the element by the weight that provides negative pressure to offset movable part to above-mentioned balancing gate pit.
Above-mentioned pressure supply unit is preferably, and can adjust the negative pressure that offers above-mentioned balancing gate pit, makes the power along direction of improvement that acts on the above-mentioned movable part by this negative pressure reach the degree of offsetting above-mentioned movable part weight.The load that can will put on the element when buffering is reduced to very little like this.
In addition, above-mentioned pressure supply unit is preferably, and comprises the malleation supply source; Adjust the malleation adjusting device of the malleation that this malleation supply source provided; The negative pressure feeding source; Adjust the negative pressure adjusting device of the negative pressure that this negative pressure feeding source provided; And the switching device shifter that between malleation supply condition and negative pressure feeding state, above-mentioned balancing gate pit is switched.
The pressure that offers above-mentioned balancing gate pit is effectively adjusted in the switching of malleation supply condition and negative pressure feeding state that like this can be by above-mentioned switching device shifter, and the adjustment by malleation adjusting device, negative pressure adjusting device.
In addition, above-mentioned pressure supply unit is preferably, can between lock-out state and unlock state, change, wherein above-mentioned lock-out state is meant by providing the malleation of regulation to limit above-mentioned movable part to above-mentioned balancing gate pit, make its state that can not move up and down with respect to the said suction nozzle axle, above-mentioned unlock state is meant by the pressure that will offer above-mentioned balancing gate pit and is reduced to below the malleation of afore mentioned rules or the state that provides pressure to allow above-mentioned movable part to move up and down is provided; Above-mentioned pressure supply unit under above-mentioned unlock state, can be adjusted the pressure that offers above-mentioned balancing gate pit in less than the scope that just is pressed onto negative pressure of afore mentioned rules malleation.
So, when not needing cushioning effect, be set at above-mentioned lock-out state, offer the pressure of above-mentioned balancing gate pit and when needing cushioning effect, be set at above-mentioned unlock state and adjust, thereby can adjust the impact load that is applied on the element.
In surface mounting apparatus of the present invention, be preferably, above-mentioned movable part comprises the suction nozzle assembled block with a plurality of suction nozzles, this suction nozzle assembled block is installed on the bottom of suction nozzle axle, can be with respect to the suction nozzle axle ormal weight that relatively moves along the vertical direction, and can rotate around transverse axis; Mechanism as the said suction nozzle assembled block is rotated is provided with the side that is positioned at the said suction nozzle axle, extends along the vertical direction and rotating assembled block driving axle; Make this assembled block drive the drive unit that rotates with axle; And the transmission mechanism that above-mentioned assembled block driving is passed to the suction nozzle assembled block with the rotation of axle; Above-mentioned assembled block drives with axle, by carriage turns may but can not be connected on the said suction nozzle axle with relatively moving on the above-below direction, above-mentioned assembled block drives with axle and said suction nozzle assembled block, is connected via above-mentioned transmission mechanism under relatively-movable along the vertical direction state.
If adopt this kind structure, can not be connected on the suction nozzle axle by above-below direction because assembled block drives with axle with relatively moving, and this assembled block drives with axle and suction nozzle assembled block and can relatively move by above-below direction, thereby when at absorptive element suction nozzle and element butt or when installation elements when the adsorbed element of suction nozzle and circuit board butt, assembled block drive with spool weight can not act on the element.
Therefore, drive the existing structure that the weight with axle also works with assembled block and compare and since impact load reduced assembled block drive with spool wt part, thereby can improve shock absorbing effect.In addition, do not act on element, thereby can prevent to improve absorption stability because of laying particular stress on the element absorption position skew that causes and the absorption mistake taking place because assembled block drives with laying particular stress on of axle.
In this surface mounting apparatus, be preferably, the said suction nozzle assembled block, be installed in possibly on the retainer that is arranged on the said suction nozzle axle bottom by above-mentioned transverse axis rotation with relatively moving along the vertical direction, above-mentioned transmission mechanism comprises being arranged on the driving side gear that above-mentioned assembled block drives the bottom of using axle; Be arranged on the above-mentioned retainer and with the slave end gear of above-mentioned driving side gears engaged; And be arranged on drive disk assembly between this slave end gear and the suction nozzle assembled block; Above-mentioned driving side gear drives with axle with respect to assembled block,, chimeric with relatively-movable along the vertical direction state unitary rotation ground spline.
So, can relatively move by above-below direction by the gear that assembled block is driven with axle and above-mentioned transmission mechanism, the above-below direction that can not hinder assembled block to drive with axle and suction nozzle assembled block passes to the suction nozzle assembled block via above-mentioned driven wheel, driven gear and drive disk assembly with the rotation that assembled block drives with axle with relatively moving.
In addition, preferred following structure: above-mentioned retainer, be provided with positioning element and the cylinder that makes this positioning element work, the assembled block that above-mentioned positioning element can stop the said suction nozzle assembled block to rotate engaging with the said suction nozzle assembled block rotates blocked state, and and the assembled block that breaks away from of said suction nozzle assembled block rotate displacement between the enable state, above-mentioned assembled block drives with axle and above-mentioned retainer, be provided with and be used for providing the gas passage of operation with gas to above-mentioned cylinder, above-mentioned positioning element, when operation is provided to above-mentioned cylinder with gas, be in above-mentioned assembled block and rotate enable state, when above-mentioned cylinder provides operation with gas, be not in above-mentioned assembled block rotation blocked state.
So, when above-mentioned positioning element being set at above-mentioned assembled block and rotating blocked state, because operation gas is not provided, so between assembled block drives with axle and above-mentioned retainer, gas pressure can not act on the hermetic unit that is used for the sealing gas path, therefore, and when in the installation exercise process, carrying out rotational action etc., the resistance to sliding of hermetic unit can be reduced, the durability of hermetic unit can be improved.
Description of drawings
Fig. 1 is the integrally-built vertical view of the surface mounting apparatus of representing that simply embodiments of the present invention relate to.
Fig. 2 is the part section front view of the head unit in the surface mounting apparatus of Fig. 1.
The key position of the head in the surface mounting apparatus of Fig. 3 presentation graphs 1, be positioning element for the suction nozzle assembled block front section view when being in assembled block and rotating blocked state.
The key position of the head in the surface mounting apparatus of Fig. 4 presentation graphs 1, be positioning element for the suction nozzle assembled block front section view when being in assembled block and rotating enable state.
Fig. 5 is the view sub-anatomy of the head of expression when unloading the suction nozzle assembled block.
Fig. 6 is that the A of Fig. 5 of formation of expression suction nozzle assembled block is to view.
Fig. 7 is the pneumatic circuit figure of the pressure supply unit of the expression of compression chamber be provided with on the surface mounting apparatus of to(for) Fig. 1.
Fig. 8 is the block diagram of the control system of presentation surface fitting machine.
Fig. 9 is the flow chart that load is adjusted an example of control.
Figure 10 is the front section view of key position of formation of the head of the surface mounting apparatus that relates to of another execution mode of expression.
Figure 11 is the enlarged drawing of the B part among Figure 10.
Embodiment
Preferred implementation of the present invention is described with reference to the accompanying drawings.
Fig. 1 simply represents the overall structure of the surface mounting apparatus that embodiments of the present invention relate to.In the figure, the conveyer belt 2 that constitutes conveyer line is set on pedestal 1, on above-mentioned conveyer belt 2, transmits printed circuit board 3, and on the job position of regulation, stop.
At the side of above-mentioned conveyer belt 2 setting element supply unit 4.This component feeding portion 4 is provided with multiple row belt feeder 4a.Each belt feeder 4a derives the paper tape of accommodating and maintaining scutellate electronic components such as IC, transistor, capacitor with predetermined distance in advance from spool, utilizes head unit 5 described later intermittently to take out electronic component.
In addition, above said base 1, be equipped with the head unit 5 that is used to load electronic component.This head unit 5 can move between the regulation job position of component feeding portion 4 and printed circuit board 3, in the present embodiment, can go up mobile in X-direction (direction of conveyer belt 2) and Y direction (direction that on horizontal plane, intersects vertically) with X-direction.
That is to say, on said base 1, be provided with a pair of trapped orbit 7 that on Y direction, extends and by the ballscrew shaft 8 of Y-axis servomotor 9 rotating drive, head unit support component 11 is set on said fixing track 7, and the nut portion 12 that is located on this support component 11 screws togather with above-mentioned ballscrew shaft 8.In addition, the ballscrew shaft 14 that on above-mentioned support component 11, is arranged on the guiding parts 13 that extends on the X-direction, drives by X-axis servomotor 15, head unit 5 remains on the above-mentioned guiding parts 13 movably, and the nut portion (not shown) that is arranged on this head unit 5 screws togather with above-mentioned ballscrew shaft 14.And, by making 9 work of Y-axis servomotor that ballscrew shaft 8 is rotated, above-mentioned support component 11 is moved on Y direction, and ballscrew shaft 14 is rotated, head unit 5 is moved on X-direction with respect to support component 11 by 15 work of X-axis servomotor.
And, said base 1 is provided with the component recognition video camera 17,18 of the adsorbed state that is used to discern the adsorbed electronic component of head unit 5, make head unit 5 after absorptive element, move to this component recognition video camera 17,18 above, thereby take absorptive element.
Fig. 2 represents the concrete structure of above-mentioned head unit 5.In the figure, be mounted with the head 20 that the bottom has the suction nozzle that stick electronic components uses on the above-mentioned head unit 5.In the present embodiment, two heads 20 have been set up in parallel in above-mentioned head unit 5 upper edge X-directions.
Each head 20 has the suction nozzle axle 21 that go up to extend at y direction (above-below direction), and this suction nozzle axle 21 is supported on the framework 5a of head unit 5, can be on y direction lifting and rotate around the longitudinal axis, below this suction nozzle axle 21, be provided with suction nozzle.Especially in order to have pooling feature in absorption during installation elements, containing suction nozzle and keep the part of the parts of this suction nozzle to constitute can be with respect to the relatively move movable part of ormal weight of suction nozzle axle 21 above-below directions.
In this embodiment, above-mentioned movable part comprises the suction nozzle assembled block 30 that keeps a plurality of suction nozzles 31 and supports this suction nozzle assembled block 30 and make it can center on the retainer 35 that transverse axis rotates.
On above-mentioned head unit 5, also on each head 20, be provided with Z axle driving mechanism, the R axle driving mechanism that makes 21 rotations of suction nozzle axle that makes 21 liftings of said suction nozzle axle, the load adjusting mechanism of pushing load on the head decline end position when being used for the assembled block driving mechanism of rotating drive suction nozzle assembled block 30 and adjusting the absorption installation elements etc.
Above-mentioned Z axle driving mechanism has and is separately fixed at top, the said frame 5a left and right sides and is connected by the upper end of carriage 25 with suction nozzle axle 21 with tooth bar 24, this tooth bar 24 of extending upward at upper and lower and liftably be supported on the said frame 5a as the Z axle servomotor 23 of drive source, is installed in pinion 26 and above-mentioned tooth bar 24 engagements on the output shaft of above-mentioned Z axle servomotor 23.And when the running by above-mentioned Z axle servomotor 23 was rotated pinion 26, tooth bar 24, carriage 25 and suction nozzle axle 21 carried out lifting integratedly with respect to framework 5a.
Above-mentioned R axle driving mechanism comprise the middle body that is separately fixed at framework 5a and as the R axle servomotor 27 of drive source, be installed in the driven wheel (not shown) on its output shaft and be installed on the said suction nozzle axle 21 and with above-mentioned driven wheel meshed gears 28, rotating drive suction nozzle axle 21 by the running of above-mentioned R axle servomotor 27.And adopt spline to connect between suction nozzle axle 21 and the said gear 28, so that gear 28 can be with respect to the 21 relative liftings of suction nozzle axle, and make suction nozzle axle 21 and gear 28 unitary rotation.
Fig. 3 and Fig. 4 represent the concrete structure of the bottom of suction nozzle axle 21.In these figure, the inside of the main shaft 21a that said suction nozzle axle 21 adopts in hollow is provided with the two-layer pipe of the countershaft 21b that is hollow equally, forms path 22a, 22b inside and outside the countershaft 21b in main shaft 21a.The negative pressure that provides absorptive element to use to suction nozzle 31 is provided the path 22a of countershaft 21b inboard, and its upper end is connected with diagram negative pressure feeding source in addition by valve 78 grades.In addition, the path 22b in the countershaft 21b outside is used for providing malleation or the negative pressure that is produced by gas to balancing gate pit 70 described later, links to each other with pressure supply unit 80 described later.
On the suction nozzle assembled block 30 that is positioned at below the said suction nozzle axle 21, be assembled with a plurality of (for example 5) suction nozzles 31 and 1 suction nozzle retainer 32.In more detail, about suction nozzle 31, being assembled with mainly with miniaturized components such as chip components is the small-bore suction nozzle of object and mainly with large-scale element such as QFP and to need the element of higher installation accuracy be the heavy caliber suction nozzle of object.And under the situation of the particular components beyond mounting core piece element and QFP on the suction nozzle retainer 32, the suction nozzle corresponding with these elements can be installed.
These suction nozzles 31 and suction nozzle retainer 32 are (following under the situation that is not needing special differentiation, fall suction nozzle etc. and be called suction nozzle 31,32) embed respectively and be fixed on the recess 33 of assembling usefulness such as a plurality of suction nozzles that uniformly-spaced are provided with on the rotation direction, be contained on the suction nozzle assembled block 30 thereby be radial group.
In addition, keep the retainer 35 of said suction nozzle assembled block 30 to be reverse U shape substantially, be positioned at the below of said suction nozzle axle 21, this retainer 35 and suction nozzle axle 21 are by splined nut 36 combinations, make retainer 35 on above-below direction, to relatively move, and can center on longitudinal axis unitary rotation with respect to suction nozzle axle 21.
By around transverse axis 37 rotating drive suction nozzle assembled blocks 30, optionally suction nozzle in these suction nozzles 31,32 etc. or suction nozzle retainer are arranged on regulation the use location, be the lower end of head 20.
The transmission mechanism formation that the assembled block driving mechanism is made the servomotor 41 (with reference to Fig. 2) of these 40 drive units that rotate and is used for the rotation of above-mentioned axle 40 is passed to said suction nozzle assembled block 30 with axle 40, conduct by the assembled block driving.
Particularly, as Fig. 2～shown in Figure 4, above-mentioned assembled block drives with axle 40 and suction nozzle axle 21 and extends abreast, can carry out lifting with respect to the framework 5a of head unit 5 and around longitudinal axis rotation.And, belt pulley 42 is installed on this axle 40, and belt pulley 43 is installed on the output shaft of above-mentioned servomotor 41, on these belt pulleys 42,43, belt (not shown) is installed.Like this, the running by above-mentioned servomotor 41 comes driving shaft 40 to rotate.On this periphery of 40, form spline.This axle 40 and belt pulley 42 are connected by spline, make that axle 40 can be with respect to belt pulley 42 lifting relatively, and make axle 40 and belt pulley 42 unitary rotation.
This top of 40 is connected in the above-mentioned maintenance 25, it can be rotated and can not on above-below direction, relatively move, in addition, axle 40 bottom is supported on an end of bridgeware 44 rotationally by gear, and this bridgeware 44 is installed in the upper part of above-mentioned retainer 35 rotatably.Suction nozzle axle 21 supports by metal (upper 5b, 5b, can move up and down and rotatable with respect to framework 5a, and axle 40 supports by metal (upper 5c, 5c, can move up and down and rotatable with respect to framework 5a.So, carriage 25, head 20 and axle 40 can one move up and down, and axle 40, axle 21 can rotate independently of one another.Be formed with gas passage 45 in this inside of 40, this gas passage 45 is connected on the gas supply source by flexible pipe 45a and electromagnetically operated valve 79.
In addition, transmission mechanism comprises: be arranged on the driving side gear 46 of above-mentioned axle 40 lower ends, be installed in the upper part and and the slave end gear 47 of above-mentioned driving side gear 46 engagements and be arranged on drive disk assemblies such as power transmission shaft 50 between this slave end gear 47 and the suction nozzle assembled block 30 of above-mentioned retainer 35 rotatably.Be provided with gear 51 in the upper end of this power transmission shaft 50, this gear 51 with and above-mentioned slave end gear 47 all-in-one-piece gear 48 be set be engaged with each other.In addition, be wholely set bevel gear 52 in the lower end of power transmission shaft 50, this bevel gear 52 meshes with the bevel gear 53 that one is assembled on the suction nozzle assembled block 30.
Constitute following assembled block driving mechanism thus: above-mentioned servomotor 41 runnings and when assembled block being driven rotate with axle 40, the rotation that this rotation is transformed into around transverse axis via gear 46,47,48,51, power transmission shaft 50 and bevel gear 52,53, and pass to suction nozzle assembled block 30.
Spline is chimeric each other for above-mentioned driving side gear 46 and axle 40, but so that under the state that above-below direction relatively moves unitary rotation.Like this, but assembled block drive with spools 40 and suction nozzle assembled block 30 be connected with the state that above-below direction relatively moves by above-mentioned transmission mechanism.
As shown in Figure 3, hold-down screw 39 is screwed togather among the screwed hole 30b that is inserted into this assembled block 30 by the through hole 30a that is located on the above-mentioned bevel gear 53, thus with the front end of suction nozzle assembled block 30 by being pressed on the above-mentioned transverse axis 37, and suction nozzle assembled block 30 is fixed on this transverse axis 37.Therefore, its front end is kept out of the way to the outside of through hole 30a, then can transverse axis 37 be extracted, as shown in Figure 4 suction nozzle assembled block 30 is unloaded from retainer 35 thus with respect to retainer 35 and suction nozzle assembled block 30 if unclamp hold-down screw 39.
On said suction nozzle assembled block 30, form respectively the path independent of each other 56 that negative pressure is provided to each suction nozzle etc. 31,32.End by making above-mentioned individual channel 56 is at above-mentioned recess 33 inner openings and with when each suction nozzle etc. 31,32 is communicated with, the other end is gone up with status openings arranged side by side at the end face (being its right end face among Fig. 3) of suction nozzle assembled block 30, particularly, on the concentric circles of above-mentioned through hole 30a, with the status openings of arranging in the circumference equal intervals.And in these paths 56, the path 56 corresponding with each suction nozzle etc. 31,32 on being arranged on above-mentioned use location is communicated with above-mentioned negative pressure feeding source.That is to say, the above-mentioned end face of suction nozzle assembled block 30 slides over each other with foot's 35a medial surface of retainer 35 and is connected, the path 57 that is communicated with path 22a in the above-mentioned countershaft 21b is set, and this path 57 is in the medial surface upper shed of the above-mentioned 35a of foot on above-mentioned retainer 35.In above-mentioned path 56, have only be arranged on above-mentioned use location on corresponding path 56 such as suction nozzle 32 grades, consistent with the above-mentioned path 57 of retainer 35, so, have only in each path 56 be arranged on above-mentioned use location on the corresponding path 56 of suction nozzle 31,32 be communicated with above-mentioned negative pressure feeding source via the path 57 of retainer 35 1 sides.
The air cleaner 75 be used to prevent with negative suction supply sources such as foreign matters is installed on the opening portion of each path 56 in the end face of suction nozzle assembled block 30.This air cleaner is a kind of device that is provided with the netted filtering face in the framework inboard of annular, as Fig. 5 and shown in Figure 6, on the end face of above-mentioned assembled block 30, among the recess 56a that slotting shape forms on the opening portion of each path 56.Particularly, air cleaner 75 is installed among this recess 56a with the state with the medial end butt of recess 56a, and plug-in mounting annular pressing piece 76 and O type ring 77 successively in above-mentioned recess 56a then make the outer side superimposed of itself and air cleaner 75.Utilize the elastic force of pressing piece 76 and O type ring 77 that air cleaner 75 is remained in the above-mentioned recess 56a thus, and when the negative pressure that provides absorptive element to use, can utilize between 77 pairs of suction nozzle assembled blocks 30 of O type ring and the retainer 35 and seal, consequently, the above-mentioned path 56,57 of suction nozzle assembled block 30 can have no to be communicated with gap.
And in above-mentioned path 56, the path 56 corresponding with suction nozzle retainer 32 is because the installing space aspect connects through hole 30a as shown in Figure 3, by this through hole 30a and suction nozzle retainer 32 interior indirect communication.
On said suction nozzle assembled block 30, side at the recess 33 that is used to install each suction nozzle etc. is formed for 31,32 connecting holes that position 60 such as suction nozzles, and cylinder 62 is set on retainer 35, and this cylinder has the positioning element 61 that the tip that can engage with this connecting hole 60 narrows down.
When balancing gate pit 64 provides air, leak from gas passage 65,66 in order to prevent air, around the gas passage 65,66 on the part that is slidingly connected of retainer 35 and bridgeware 44, be provided with sealing 69.
In addition, as shown in Figure 3, above-mentioned load adjusting mechanism has balancing gate pit 70, and this balancing gate pit 70 is at the upper pressure chamber member 71 that is installed on suction nozzle axle 21 lower ends and be installed between balancing gate pit, the bottom member 72 on the retainer 35 and form.The outboard channel 22b of countershaft 21b in this balancing gate pit 70 and the suction nozzle axle 21 is communicated with.When this balancing gate pit 70 provides the air pressure of regulation, utilize air pressure to push retainer 35 downwards, thereby form lock-out state and unlock state, above-mentioned lock-out state is meant and retainer 35 is limited on the decline end position that can move up and down in the scope with respect to suction nozzle axle 21, above-mentioned unlock state is meant when the pressure that offers above-mentioned balancing gate pit 70 during less than afore mentioned rules air pressure, when the absorption installation elements, allow retainer 35 along with suction nozzle with the butt of element with respect to the suction nozzle axle 21 relative displacement that makes progress.
The slotting passage member 73 that forms the path 74 that communicates with the path 22a of above-mentioned countershaft 21b inboard that is common in the inside of upper pressure chamber member 71, the upper end of this passage member 73 is connected on the countershaft 21b, and the lower end of passage member 73 is deep in balancing gate pit, the bottom member 72, is communicated with the path 57 that forms on the retainer 35 from here.Passage member 73 and balancing gate pit, bottom member 72 form one by being threaded.
Fig. 7 represents the pressure supply unit 80 for the balancing gate pit 70 of above-mentioned load adjusting mechanism.This pressure supply unit 80 has malleation feeding pipe 82 that is connected on the malleation supply source 81 that is made of air compressor and the negative pressure feeding pipeline 84 that is connected on the negative pressure feeding source 83 that is made of vacuum pump or jet pump.On above-mentioned malleation feeding pipe 82, be disposed with filter 85, oil mist separator 86, pressure-reducing valve 87, gas tank 88 and electric adjuster 89 (malleation adjusting device) from malleation supply source 81 1 sides.In addition, in above-mentioned negative pressure feeding pipeline 84, be provided with gas tank 90 and electric vacuum governor 91 (negative pressure adjusting device).
Above-mentioned electric adjuster 89 and electric vacuum governor 91 are devices of the pressure (malleation or negative pressure) in the signal of telecommunication control piper 82,84 that provides according to aftermentioned controller 100.
In addition, on malleation feeding pipe 82, connect the positive pressure sensor 92 that is used to detect by electric adjuster 89 adjusted malleations, on negative pressure feeding pipeline 84, connecting the B/P EGR Back Pressure Transducer EGR 93 that is used to detect by electric vacuum governor 91 adjusted negative pressure.
Above-mentioned pipeline 82,84 and with the path 22b that communicates of balancing gate pit 70 of load adjusting mechanism between, be provided with positive and negative pressure transfer valve 95, and can carry out the transfer valve 96 that pressure (malleation or negative pressure) imported or discharged switching balancing gate pit 70 as the switching device shifter that can between malleation supply condition and negative pressure feeding state, switch above-mentioned balancing gate pit 70.Above-mentioned positive and negative pressure transfer valve 95 is the electromagnetically operated valves that carry out handover operation according to the signal that following controller 100 provides, can the path 97 that be connected on the transfer valve 96 be switched, make its malleation supply condition that is communicated with malleation feeding pipe 82 and with negative pressure feeding state that negative pressure feeding pipeline 84 is communicated with between switch.In addition, above-mentioned transfer valve 96 is the electromagnetically operated valves that carry out handover operation according to the signal that following controller 100 provides, can the path 22b that communicate with above-mentioned balancing gate pit 70 be switched, make its pressure that imports negative pressure or malleation being communicated with import state with above-mentioned path 97 and the atmosphere opening state that cuts off above-mentioned path 97 and the path 22b that communicates with above-mentioned balancing gate pit 70 is communicated with atmospheric side between switch.
Fig. 8 represents the control system of fitting machine.As shown in the drawing, fitting machine has controller 100, this controller 100 is provided with the main control unit 101 that is used for unified control fitting machine and is used to store the storage device 102 of the various relative programs of fitting operation etc., and is provided with a driving control device 103, control valve device 104 and load and adjusts with control device 105.
The various servomotors of being installed on above-mentioned axle driving control device 103 control fitting machines and the head unit 59,15,23,27,41.In addition, the operation of above-mentioned control valve device 104 control valves 78 and valve 79, the negative pressure that provides absorptive element to use to suction nozzle 31 is provided wherein above-mentioned valve 78, and above-mentioned valve 79 is used for providing air to the cylinder 62 that makes positioning element 61 work.
Above-mentioned load adjustment is with control device 105, and the transfer valve 96, positive and negative pressure transfer valve 95, electric adjuster 89 and the electric vacuum governor 91 that are arranged on the pressure supply unit 80 corresponding with the balancing gate pit 70 of the adjusting mechanism of loading are controlled.And according to kind of absorptive element etc., said suction nozzle axle 21 is switched between lock-out state and unlock state, above-mentioned lock-out state is meant by providing the regulation malleation to limit above-mentioned movable part to above-mentioned balancing gate pit 70, so that its lock-out state that can not move up and down, above-mentioned unlock state is meant by the pressure that will offer above-mentioned balancing gate pit 70 and is reduced to below the afore mentioned rules malleation or stops to provide pressure to allow above-mentioned movable part to move up and down, and, for can be under this unlock state from offering the pressure of above-mentioned balancing gate pit 70 and control above-mentioned valve 95 less than adjusting in the scope that just is pressed onto negative pressure of afore mentioned rules malleation, 96 and adjuster 89,91.In the case, as the control of adjuster 89,91 and carry out FEEDBACK CONTROL, so that supply pressure reaches kind according to absorptive element etc. and target value set according to the detection signal that positive pressure sensor 92 or B/P EGR Back Pressure Transducer EGR 93 provide.
When adopting malleation supply source 81 to stop then under the situation of the piping system structure of airtight positive pressure feeding pipe 82, owing to can keep the pressure before stopping, thereby can utilize electric adjuster 89 to carry out the control that air pressure is overflowed, reach the pressure of regulation up to positive pressure sensor 92 detected pressure.But only also can be set at and under the different situations that must make balancing gate pit 70 rise to special required pressure of kind, just make 81 runnings of malleation supply source because of suction nozzle 31.In addition, under the situation that adopts the not airtight piping system structure of malleation feeding pipe 82, when malleation supply source 81 stopped, then As time goes on, the pressure of balancing gate pit 70 moved closer to atmospheric pressure.Electric adjuster 89 promotes this variation.
Also identical therewith about negative pressure feeding pipeline 84, when adopting negative pressure feeding source 83 to stop under the situation of the piping system structure of then airtight negative pressure feeding pipeline 84, owing to can keep the pressure before stopping, so can utilize electric vacuum governor 91 to carry out the control of discharging negative pressure (importing air), reach the regulation negative pressure up to B/P EGR Back Pressure Transducer EGR 93 detected pressure from atmosphere one side.But only also can be set at and under the different situations that must make balancing gate pit 70 drop to special required pressure (intensified negative pressure) of kind, just make 83 runnings of negative pressure feeding source because of suction nozzle 31.In addition, under the situation that adopts the not airtight piping system structure of negative pressure feeding pipeline 84, when negative pressure feeding source 83 stopped, then As time goes on, the negative pressure of balancing gate pit 70 moved closer to 0 (atmospheric pressure).Electric vacuum governor 91 promotes this variation.
And required negative pressure should meet the following conditions: multiply by the load that makes progress that negative pressure value obtains with cross-sectional area by balancing gate pit 70 and compare, the weight of movable part is greater than the load of movable part.This is because if the weight of movable part is less, then movable part can constantly rise, thereby has to change the controlling value of Z axle servomotor 23, in addition, also can't relax impact load.
In addition, in order to obtain the relaxation properties of required impact load, the method that is controlled to be 0 (atmospheric pressure) as the pressure with balancing gate pit 70 has: the setting pressure on electric adjuster 89 and the electric vacuum governor 91 is controlled to be 0 method and path 22b is set at the method for atmosphere opening state by transfer valve 96.Also can in the recess on being formed on suction nozzle assembled block 30 33, the elastomeric element (helical spring) on the not shown brake that utilizes elastic force suction nozzle 31 to be pressed into the below be set.Can relax impact load by elastomeric element.In the case, can be by from just being pressed onto 0 (atmospheric pressure) and then to the negative pressure pressure of balancing gate pit 70 being controlled to required pressure, thus obtain the relaxation properties of more appropriate impact load.
In addition, compare with balancing gate pit 70, gas tank 88,90 has bigger volume, even be set at movable part generation displacement, also can the pressure of malleation feeding pipe 82 and negative pressure feeding pipeline 84 not impacted.
Below, the load that utilizes the flow chart of Fig. 9 to illustrate above-mentioned controller 100 is adjusted the load adjustment of control device 105.In addition, though the control of other control example such as fitting operation etc. adopts other program to carry out,, thereby omit diagram and explanation because the control of its fitting operation etc. is known prior art.
When the processing shown in the flow chart of Fig. 9 begins, at first judge the component kind of absorption in step S1, the component kind according to absorption in step S2 is set the pressure that is used to control load.When on the head unit 5 at this execution mode two heads 20 being set, the component kind of adsorbing at each head 20 is judged and the corresponding load of setting controlled pressure respectively.In addition, assumed load controlled pressure when absorptive element and installation elements respectively.
The load controlled pressure waits the appropriate value that draws various elements in advance by experiment, and this tabulation is stored in the storage device 102.That is to say, when at absorptive element suction nozzle 31 on the head decline end position during with the element butt or at installation elements absorptive element on head decline end position during with the printed circuit board butt, draw the suitable load of pushing with regard to various elements in advance, so that in order to adsorb reliably and to install and when acting on element with to a certain degree pressing force, can be because of the excessive component wear that causes of loading.Setting offers the pressure of balancing gate pit 70, makes weight and the load sum that pressure produced that offers balancing gate pit 70 of the movable part that is made of suction nozzle assembled block 30 that can move up and down with respect to suction nozzle axle 21 and retainer 35 etc. reach the above-mentioned suitable load of pushing.In the case, if the appropriate weight of load less than above-mentioned movable part of pushing, the pressure set points that then offers balancing gate pit 70 is a negative pressure.
Then, in step S3, judge whether to be in the situation that to load and control.In the case, because in the component mounting operation process, except that absorption is when head 20 is near the decline end position during installation elements, the control of all needn't loading, and preferably above-mentioned movable part is redefined for lock-out state, so in step S3, be judged as NO (denying) with respect to suction nozzle axle 21.In the case, in step S4, above-mentioned transfer valve 96 is set at pressure and imports state, and in step S5, positive and negative pressure transfer valve 95 is set at the malleation supply condition, and in step S6 electric adjuster 89 is controlled, so that the pressure that positive pressure sensor 92 is detected remains on the authorized pressure (for example 0.45 MPa) that is enough to set above-mentioned lock-out state.
On the other hand, when absorptive element and installation elements, near head 20 is in the decline end position time, in above-mentioned steps S3, be judged as YES (being).And, in the case, in step S7, transfer valve 96 and positive and negative pressure transfer valve 95 are operated according to setting pressure, and in step S8 according to the comparison of detected pressures and setting pressure and controlled adjuster 92,93.
Specifying the processing of step S7, S8, is (element appropriate being pushed under the equiponderant situation of load and above-mentioned movable part) in setting pressure under 0 the situation, and transfer valve 96 is set at the atmosphere opening state.Setting pressure be lower than afore mentioned rules pressure on the occasion of situation under (to appropriate the pushing under the situation of load greater than above-mentioned movable part of element), transfer valve 96 is set at pressure imports state, positive and negative transfer valve 95 is set at the malleation supply condition, and electric adjuster 89 is controlled, so that positive pressure sensor 92 detected pressure reach setting pressure.In addition, when setting pressure is negative value (to element apply appropriate when pushing load less than the weight of above-mentioned movable part), transfer valve 96 is set at pressure imports state, positive and negative transfer valve 95 is set at the negative pressure feeding state, and electric vacuum governor 91 is controlled, so that B/P EGR Back Pressure Transducer EGR 93 detected negative pressure reach setting pressure.
According to the judgement among the step S3, carried out after the processing of corresponding step S4～S6 or step S7, S8, in step S9, judge whether to install, if judged result is NO, the then later processing of repeating step S3.If the judged result of step S9 is YES, then finish.
If adopt the device of above-mentioned this execution mode, as component mounting operation, at first head unit 5 is moved in the component feeding portion 4, head 20 descends herein, utilizes on the decline end position after suction nozzle 31 absorptive elements, and head 20 rises.Like this after absorptive element, make a video recording and carry out operations such as component recognition in view of the above by video camera 17,18, head unit 5 is moved on the printed circuit board 3, head 20 descends herein, and suction nozzle 31 adsorbed elements are installed on the printed circuit board 3.
During carrying out the said elements fitting operation, beyond when head 20 being in descend near the end, above-mentioned load adjusting mechanism is set at lock-out state, thereby the movable part that restriction is made of retainer 35 and suction nozzle assembled block 30 etc., it can not be relatively moved on above-below direction with respect to suction nozzle axle 21, but when being near the end that descends when head 20, above-mentioned Load Regulation mechanism is set at unlock state, thereby allows above-mentioned movable part to relatively move up and down with respect to suction nozzle axle 21.Thus, make when absorptive element suction nozzle 31 on the decline end position during with the element butt or the element of suction nozzle 31 absorption during installation elements on the decline end position during with the circuit board butt, can abirritation in the impact of element.
As above above-mentioned, bring into play when impacting abirritation when being set at unlock state, by according to setting pressure control transfer valve 96, positive and negative pressure transfer valve 95 and adjuster 89,91, can adjust the load on the element that is applied to the suction nozzle front end rightly.
That is to say, when transfer valve 96 is set at the atmosphere opening state, above-mentioned balancing gate pit 70 becomes the state to atmosphere opening, because balancing gate pit 70 does not apply pressing force to above-mentioned movable part, thereby the weight of above-mentioned movable part becomes the load on the element that is applied to the suction nozzle front end.In addition, when transfer valve 96 being set at pressure importing state, then in above-mentioned balancing gate pit 70, supply with malleation (positive and negative pressure transfer valve 95 being set at the situation of malleation supply condition) or negative pressure (positive and negative pressure transfer valve 95 being set at the situation of negative pressure feeding state), the value of the weight addition of this pressure and movable part becomes the load on the element that is applied to the suction nozzle front end, can adjust by 89,91 pairs of these loads of adjuster.
Especially, if positive and negative pressure transfer valve 95 is set at the negative pressure feeding state, and electric vacuum governor 91 adjusted negative pressure are offered balancing gate pit 70, then since the masterpiece of the direction of improvement that balancing gate pit 70 produces be used on the above-mentioned movable part, thereby can offset a part even the total weight of above-mentioned movable part, the load that is applied on the element of suction nozzle front end can be reduced to below the weight of above-mentioned movable part, thereby can increase substantially shock absorbing effect.
In addition, when being set at above-mentioned unlock state (especially balancing gate pit 70 is in the state to atmosphere opening), though suction nozzle assembled block 30 and retainer 35, bridgeware 44 and combination gear thereon etc. can relatively move on above-below direction with respect to suction nozzle axle 21, but on above-below direction, fix with respect to suction nozzle axle 21 because assembled block drives with axle 40, thereby the weight that assembled block drives with axle 40 can't impose on element.Therefore, drive the existing structure that the weight with axle 40 also acts on the element with assembled block and compare, be applied to the weight minimizing on the element, impact load alleviates.
In addition, when adopting the fitting machine installation elements of present embodiment, the valve that is arranged between the path 22a in negative pressure feeding source and the countershaft 21b is opened, inboard channel 22a, passage member 73, balancing gate pit, bottom member 72, the path 57 of retainer 35 and the path 56 of suction nozzle assembled block 30 by above-mentioned countershaft 21b, to the negative pressure that the suction nozzle 31 that is on the above-mentioned use location provides absorptive element to use, utilize suction nozzle 31 absorptive elements that are arranged on the above-mentioned use location thus.When absorptive element, though also can adsorb foreign matter or dust sometimes, but, thereby can prevent the inboard channel 22a of foreign matter and dust obstruction countershaft 21b and hinder absorptive element or foreign matter to enter the negative pressure feeding source and the situation of initiating failure and so on because these foreign matters and dust can be set at the air cleaner filtration on the path 56.
Can safeguard that this maintenance can be carried out every the circuit board of certain time limit or every production some under the state that suction nozzle assembled block 30 is unloaded from each head 20 to above-mentioned air cleaner 75.Particularly, can be by unscrewing said fixing screw 39, transverse axis 37 is extracted from retainer 35, suction nozzle assembled block 30 is unloaded from retainer 35, pull down O type ring 77, pressing piece 76 and air cleaner 75 among each the recess 56a that is installed in the assembled block end face then in order.And air cleaner 75 cleaned up or is replaced by new product, then according to suction nozzle assembled block 30 being reinstalled on the head 20 with above-mentioned opposite order.As above above-mentioned, by periodic maintenance is carried out in air filtration 75, can prevent to block the negative pressure reduction that causes, thereby can implement appropriate element adsorption operations constantly because of the mesh of this air cleaner.
And, owing on the end portion of each path 56 of suction nozzle assembled block end face, be provided with recess 56a, and air cleaner 75 is inserted into herein, so can carry out the maintenance of air cleaner 75 as long as unload suction nozzle assembled block 30 on 20 from the head, and will each suction nozzle etc. 31,32 not unload from suction nozzle assembled block 30.In addition, under 31,32 states that still are installed on the suction nozzle assembled block 30 such as each suction nozzle, can clean individual channel, clean each suction nozzle etc. 31,32 by go into air from leading section one side-blown of each suction nozzle etc. 31,32 by going into air from recess 56a one side-blown.
Figure 10 and Figure 11 represent another execution mode of the mounting structure of air cleaner 75.In the example of these accompanying drawings, adopt the structure that air cleaner 75 is arranged on retainer 35 1 sides.In detail, the end portion of the above-mentioned path 57 on retainer 35 (35a of foot) forms recess 57a (plug-in mounting recess), with the state of the medial end butt of this recess 57a under air cleaner 75 is inserted on this recess 57a, and with the mode of the outer side superimposed of this air cleaner 75 in above-mentioned recess 57a successively plug-in mounting the pressing component 76 and the O type ring 77 of annular.Utilize the elastic force of O shape ring 77 that air cleaner 75 is remained in the above-mentioned recess 57a thus, and when the negative pressure that provides absorptive element to use, by 77 sealings of O shape ring, consequently, the above-mentioned path 56,57 of suction nozzle assembled block 30 can have no to be communicated with gap between suction nozzle assembled block 30 and the retainer 35.
So, adopt an air cleaner 75 to get final product to a plurality of suction nozzles 31,32, that is to say, because each path 56 to suction nozzle assembled block 30 1 sides adopts shared air cleaner 75, thereby have following advantage: it is more reasonable to constitute, and can further improve the maintainability of air cleaner 75.
And the concrete structure of surface mounting apparatus of the present invention is not limited to above-mentioned execution mode, also can carry out various changes.
For example exist, in the above-described embodiment, though having the assembled block 30 of a plurality of suction nozzles 31 is installed on the bottom of suction nozzle axle 21 by retainer 35, but also can a suction nozzle be installed in the bottom of suction nozzle axle, in the case, but can be with suction nozzle and the parts that keep this suction nozzle as the movable part that can relatively move with respect to suction nozzle axle above-below direction, and between this movable part and suction nozzle axle, be provided for adjusting the balancing gate pit of pressing force, as shown in Figure 7, this balancing gate pit is provided with pressure supply unit, is redefined for and gets final product in the scope that just is pressed onto negative pressure, adjusting the pressure offer the balancing gate pit.
Claims (9)
1. surface mounting apparatus is characterized in that:
Comprise, move possible head unit;
Lifting is arranged on the above-mentioned head unit possibly, extend along the vertical direction the suction nozzle axle;
Be installed in the bottom of said suction nozzle axle, be used for the suction nozzle of absorptive element;
The parts that contain said suction nozzle and keep this suction nozzle are installed on the said suction nozzle axle, and with respect to can relatively move the along the vertical direction movable part of ormal weight of this suction nozzle axle;
Be arranged between said suction nozzle axle and the above-mentioned movable part, be used to adjust the balancing gate pit that is applied to the pressing force on the above-mentioned movable part; And
Be used for providing the pressure supply unit of pressure to above-mentioned balancing gate pit;
Above-mentioned pressure supply unit is being adjusted the pressure that offers above-mentioned balancing gate pit in the scope that just is pressed onto negative pressure.
2. surface mounting apparatus as claimed in claim 1 is characterized in that:
Above-mentioned movable part comprises, the suction nozzle assembled block, and having with the transverse axis is a plurality of suction nozzles that the center is radial setting; And retainer, keep this suction nozzle assembled block that it can be rotated around transverse axis;
Above-mentioned balancing gate pit is arranged between above-mentioned retainer and the said suction nozzle axle.
3. surface mounting apparatus as claimed in claim 1 or 2 is characterized in that:
Above-mentioned pressure supply unit is adjusted the negative pressure that offers above-mentioned balancing gate pit, makes the power along direction of improvement that acts on the above-mentioned movable part by this negative pressure reach the degree of offsetting above-mentioned movable part weight.
4. surface mounting apparatus as claimed in claim 1 or 2 is characterized in that:
Above-mentioned pressure supply unit comprises, the malleation supply source; Adjust the malleation adjusting device of the malleation that this malleation supply source provided; The negative pressure feeding source; Adjust the negative pressure adjusting device of the negative pressure that this negative pressure feeding source provided; And the switching device shifter that between malleation supply condition and negative pressure feeding state, above-mentioned balancing gate pit is switched.
5. surface mounting apparatus as claimed in claim 1 or 2 is characterized in that:
Above-mentioned pressure supply unit, can between lock-out state and unlock state, change, wherein above-mentioned lock-out state is meant by providing the malleation of regulation to limit above-mentioned movable part to above-mentioned balancing gate pit, make its state that can not move up and down with respect to the said suction nozzle axle, above-mentioned unlock state is meant by the pressure that will offer above-mentioned balancing gate pit and is reduced to below the malleation of afore mentioned rules or the state that provides pressure to allow above-mentioned movable part to move up and down is provided;
Above-mentioned pressure supply unit under above-mentioned unlock state, can be adjusted the pressure that offers above-mentioned balancing gate pit in less than the scope that just is pressed onto negative pressure of afore mentioned rules malleation.
6. surface mounting apparatus as claimed in claim 1 is characterized in that:
Above-mentioned movable part comprises the suction nozzle assembled block with a plurality of suction nozzles, and this suction nozzle assembled block is installed on the bottom of suction nozzle axle, can be with respect to the suction nozzle axle ormal weight that relatively moves along the vertical direction, and can rotate around transverse axis;
Mechanism as the said suction nozzle assembled block is rotated is provided with the side that is positioned at the said suction nozzle axle, extends along the vertical direction and rotating assembled block driving axle; Make this assembled block drive the drive unit that rotates with axle; And the transmission mechanism that above-mentioned assembled block driving is passed to the suction nozzle assembled block with the rotation of axle;
Above-mentioned assembled block drives with axle, by carriage turns may but can not be connected on the said suction nozzle axle with relatively moving on the above-below direction,
Above-mentioned assembled block drives with axle and said suction nozzle assembled block, is connected via above-mentioned transmission mechanism under relatively-movable along the vertical direction state.
7. surface mounting apparatus as claimed in claim 6 is characterized in that:
The said suction nozzle assembled block is installed in possibly along the vertical direction and can be arranged on the retainer of said suction nozzle axle bottom with relatively moving by above-mentioned transverse axis rotation,
Above-mentioned transmission mechanism comprises being arranged on the driving side gear that above-mentioned assembled block drives the bottom of using axle; Be arranged on the above-mentioned retainer and with the slave end gear of above-mentioned driving side gears engaged; And be arranged on drive disk assembly between this slave end gear and the suction nozzle assembled block;
Above-mentioned driving side gear drives with axle with respect to above-mentioned assembled block, with relatively-movable along the vertical direction state unitary rotation to give spline chimeric.
8. surface mounting apparatus as claimed in claim 7 is characterized in that:
Above-mentioned retainer, the cylinder that is provided with positioning element and this positioning element is operated, the assembled block that wherein above-mentioned positioning element can stop the said suction nozzle assembled block to rotate engaging with the said suction nozzle assembled block rotates blocked state, and and the assembled block that breaks away from of said suction nozzle assembled block rotate displacement between the enable state
Above-mentioned assembled block drives with axle and above-mentioned retainer, is provided with to be used for providing the gas passage of operation with gas to above-mentioned cylinder,
Above-mentioned positioning element is in above-mentioned assembled block and rotates enable state when operation is provided to above-mentioned cylinder with gas, be not in above-mentioned assembled block rotation blocked state when above-mentioned cylinder provides operation with gas.
9. surface mounting apparatus is characterized in that:
Comprise, move possible head unit;
Lifting is arranged on the above-mentioned head unit possibly, along the vertical direction the suction nozzle axle of Yan Shening;
Be installed in the bottom of said suction nozzle axle possibly around the transverse axis rotation, and have the suction nozzle assembled block of a plurality of suction nozzles;
Mechanism as the said suction nozzle assembled block is rotated is provided with the side that is positioned at the said suction nozzle axle, extends along the vertical direction and rotating assembled block driving axle; Make this assembled block drive the drive unit that rotates with axle; And the transmission mechanism that above-mentioned assembled block driving is passed to the suction nozzle assembled block with the rotation of axle;
The said suction nozzle assembling is installed on the said suction nozzle axle, and with respect to the removable along the vertical direction ormal weight of this suction nozzle axle;
Above-mentioned assembled block drives with axle, by carriage turns may but can not be connected on the said suction nozzle axle with relatively moving on the above-below direction,
Above-mentioned assembled block drives with axle and said suction nozzle assembled block, is connected via above-mentioned transmission mechanism under relatively-movable along the vertical direction state.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004333532 | 2004-11-17 | ||
| JP2004333532A JP4401937B2 (en) | 2004-11-17 | 2004-11-17 | Surface mount machine |
| JP2004334365 | 2004-11-18 | ||
| JP2004336546 | 2004-11-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1777357A true CN1777357A (en) | 2006-05-24 |
| CN100482063C CN100482063C (en) | 2009-04-22 |
Family
ID=36627071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101253323A Active CN100482063C (en) | 2004-11-17 | 2005-11-16 | Surface mounting machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4401937B2 (en) |
| CN (1) | CN100482063C (en) |
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| CN110431935B (en) * | 2017-03-31 | 2021-07-23 | 株式会社富士 | Component mounting apparatus and mounting head |
| CN110832960A (en) * | 2017-07-04 | 2020-02-21 | 株式会社富士 | Component mounting apparatus |
| CN111279813A (en) * | 2017-10-26 | 2020-06-12 | 昕芙旎雅有限公司 | Air control device for chip mounter |
| CN113632601A (en) * | 2019-04-23 | 2021-11-09 | 雅马哈发动机株式会社 | Component mounting apparatus |
| CN113632601B (en) * | 2019-04-23 | 2023-05-09 | 雅马哈发动机株式会社 | Component mounting apparatus |
| US12006968B2 (en) | 2019-04-23 | 2024-06-11 | Yamaha Hatsudoki Kabushiki Kaisha | Component mounting device |
| CN116960046A (en) * | 2023-08-08 | 2023-10-27 | 芯朋半导体科技(如东)有限公司 | Suction and discharge mechanism for chip sorting machine and working method |
| CN116960046B (en) * | 2023-08-08 | 2024-03-01 | 芯朋半导体科技(如东)有限公司 | Suction and discharge mechanism for chip sorting machine and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100482063C (en) | 2009-04-22 |
| JP4401937B2 (en) | 2010-01-20 |
| JP2006147719A (en) | 2006-06-08 |
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