High accuracy light-type placement head
Technical field
The utility model relates to a kind of placement head, especially a kind of high accuracy light-type placement head.
Background technology
Chip mounter is as the column support type equipment in Full Vision field, have that placement speed is fast, placement accuracy is high, stable, the reliable advantage of mounting quality, it revolutionizes the feature of attachment field labor-intensive enterprises, substantially increase production efficiency, having liberated labour, is that modernization SMT mounts the requisite equipment of industry.
Placement head is the vitals of chip mounter, plays important effect in its operating efficiency at chip mounter, accuracy etc.In order to improve the efficiency of chip mounter and accuracy etc., the volume reducing placement head and the weight reducing placement head are the directions that those skilled in the art pursue.What existing placement head comprised vertically disposed soup stick and drove soup stick to rotate in the horizontal direction horizontally rotates motor.In order to reduce the volume of placement head, propose soup stick to be directly connected with the output shaft horizontally rotating motor.Because soup stick needs to be connected with vacuum-pumping tube, so need to arrange vacuum coupling in the upper end of soup stick.Vacuum coupling be metal derby mill out with vertical through hole and the housing of transverse holes that is communicated with vertical through hole.The weight of vacuum coupling accounts for about 1/2nd of integral plaster head weight.Although vacuum coupling can adopt the light materials such as aluminium to make, its weight still difficulty has larger change, and this kind of connected mode needs good sealing, to ensure that soup stick has enough suction forces.
As can be seen here, above-mentioned existing placement head with in use in structure, obviously still has inconvenience and defect, and is urgently further improved.The utility model people actively in addition research and innovation, to founding a kind of Novel patch head, makes it have more practicality.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of structure simple, the high accuracy light-type placement head that mobile unit quality is little.
The technical solution of the utility model is: a kind of high accuracy light-type placement head, comprise mounting head support, the branched paster axle be arranged in mounting head support, Z-direction elevating mechanism, R be to rotation angle mechanism, vacuum module, it is characterized in that: the top rear face of mounting head support is provided with integrating control assembly, its top front face is provided with vacuum module, its positive Middle face is provided with the CCD image pick-up device driving R to the R of rotation angle mechanism to stepping motor and gather image, its back side is provided with two rows Z-direction drive motors, and described Z-direction drive motors output shaft direction is vertical with Z axis; The vacuum mold pack support top of described vacuum module is provided with pallet of confluxing, pallet of confluxing lateral surface is provided with air pressure and detects integration module, vacuum reversing plate is connected with bottom vacuum mold pack support, above vacuum reversing plate, some vacuum takeoffs are installed, side is provided with the vacuum straight tube of conducting corresponding to vacuum takeoff, each vacuum straight tube connects a filter assemblies, and filter assemblies connects with the corresponding vacuum tube arm confluxed in pallet.
Vacuum module also comprises air admission valve, positive/negative-pressure switching solenoid valve, vacuum tube, described vacuum mold pack support side is H-shaped, pallet of confluxing is provided with air admission valve and positive/negative-pressure switching solenoid valve from left to right successively from top, air admission valve is arranged on malleation pipeline, malleation pipeline is connected with some vacuum tubes respectively, vacuum tube is provided with positive/negative-pressure switching solenoid valve; Air admission valve is arranged on malleation pipe head, and malleation pipeline is connected with some vacuum tubes respectively, and vacuum tube is provided with positive/negative-pressure switching solenoid valve, vacuum takeoff is connected with vacuum hose, and vacuum hose is connected with the vacuum access port of paster axle.
Described air admission valve is connected with malleation pipeline flat seal by aperture pipeline with positive/negative-pressure switching solenoid valve, and the aperture pipeline other end connects the cavity of valve body by screw.
A small-sized pressure-reducing valve, an air admission valve and six positive/negative-pressure switching solenoid valves are installed above described pallet of confluxing from left to right, pallet of confluxing lateral surface is provided with six filter assemblies, its inside is provided with a malleation pipeline and six groups of vacuum tubes, air admission valve is arranged on malleation pipe head, and malleation pipeline is connected with six groups of vacuum tubes respectively.
Described paster axle comprises suction nozzle, suction nozzle, soup stick, connecting seat assembly, described soup stick is the hollow tube with external splines, connecting seat assembly is connected with soup stick top, connecting seat assembly side is provided with the vacuum hose interface be communicated with soup stick, soup stick bottom is connected with suction nozzle, and suction nozzle bottom is provided with suction nozzle.
Z-direction elevating mechanism comprises the Z-direction drive motors being arranged on mounting head cradle back, the Z-direction belt wheel mechanism vertically arranged, the connecting seat assembly of paster axle is connected with the slide block of Z-direction belt wheel mechanism, and described Z-direction drive motors makes the slide block of Z-direction belt wheel mechanism move up and down and then pulls paster axle to move up and down.
Z-direction elevating mechanism also comprises the spring be fixed on above mounting head support, and spring is connected with paster axle connecting seat assembly.
Z-direction drive motors is set to be provided with communication interface modules between two rows.
R comprises R to stepping motor, R to driving wheel unit, R to driven pulley unit, R to Timing Belt to rotation angle mechanism, R is to driving stepper motor R to driving wheel unit, described R drives multiple R to driven pulley unit to driving wheel unit, R is socketed on soup stick to driven pulley unit, spacing by external splines, and then control paster axle R to rotation.
Described mounting head support is general frame structure, and one side is vertically disposed with two pieces of slide blocks and offers the circular hole of hold-down nut at the middle part of same side, and nut is socketed with driving the screw mandrel of placement head movement.
The beneficial effects of the utility model: the weak air blowing pressure of (1) point twice malleation is normal operating air pressure, strong pressure of blowing is for cleaning pipeline foreign material air pressure; Be connected with malleation pipeline flat seal by aperture pipeline, be connected and fixed the cavity of valve body by screw, control malleation meticulousr;
(2) negative-pressure pipeline path is by bending many bends pipeline structure of complexity, make easy straight pipe line structure into, be convenient to install, pallet of confluxing structure is simple, vacuum pipe design is larger, negative pressure resistance is less, and filter assemblies is mounted externally, after gas circulation, air pressure is more stable, improve suction speed, reduce the fluctuation of vacuum detecting, be convenient to the noise reduction process of analog pressure sensor detection signal; Negative pressure out receives suction nozzle separately by air accumulator from vacuum pump, and the equilibrium that is more easy to get has negative pressure.
Accompanying drawing explanation
Fig. 1 is high accuracy light-type placement head structural representation of the present utility model.
Fig. 2 is vacuum module structural representation of the present utility model.
Fig. 3 is that R of the present utility model is to rotation angle mechanism structural representation.
Fig. 4 is high accuracy light-type placement head partial structurtes schematic diagram of the present utility model.
Fig. 5 is mounting head supporting structure schematic diagram of the present utility model.
In figure, 1-mounting head support, 101-slide block, 102-nut, 2-paster axle, 201-suction nozzle, 202-suction nozzle, 203-soup stick, 204-connecting seat assembly, 3-Z is to elevating mechanism, 301-Z is to drive motors, 302-Z is to belt wheel mechanism, 303-spring, 304-communication interface modules, 4-R is to rotation angle mechanism, 5-vacuum module, 6-integrating control assembly, 401-R is to stepping motor, 402-R is to driving wheel unit, 403-R is to driven pulley unit, 404-R is to Timing Belt, 501-vacuum mold pack support, 502-confluxes pallet, 504-vacuum reversing plate, 505-vacuum takeoff, 506-vacuum straight tube, 507-filter assemblies, 508-vacuum tube arm, 509-air admission valve, 510-positive/negative-pressure switching solenoid valve, 512-malleation pipeline, 7-CCD image pick-up device.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As Figure 1-Figure 5, a kind of high accuracy light-type placement head, comprise mounting head support 1, the branched paster axle 2 be arranged in mounting head support 1, Z-direction elevating mechanism 3, R be to rotation angle mechanism 4, vacuum module 5, the top rear face of mounting head support 1 is provided with integrating control assembly 6, its top front face is provided with vacuum module 5, its positive Middle face is provided with and drives R to the R of rotation angle mechanism 4 to stepping motor 401 and the CCD image pick-up device 7 gathering image, its back side is provided with two rows Z-direction drive motors 301, and described Z-direction drive motors 301 output shaft direction is vertical with Z axis; Vacuum mold pack support 501 top of described vacuum module 5 is provided with pallet 502 of confluxing, pallet of confluxing 502 lateral surface is provided with air pressure and detects integration module, vacuum reversing plate 504 is connected with bottom vacuum mold pack support 501, vacuum reversing plate 504 is provided with six vacuum takeoffs 505 above, side is provided with the vacuum straight tube 506 of conducting corresponding to vacuum takeoff 505, each vacuum straight tube 506 connects a filter assemblies 507, and filter assemblies 507 connects with the corresponding vacuum tube arm 508 confluxed in pallet 502.
Vacuum module 5 also comprises air admission valve 509, positive/negative-pressure switching solenoid valve 510, vacuum tube, described vacuum mold pack support 501 side is H-shaped, pallet of confluxing 502 is provided with an air admission valve 509 and six positive/negative-pressure switching solenoid valves 510 from left to right successively from top, air admission valve 509 is arranged on malleation pipeline 512 entrance point, malleation pipeline 512 is connected with six vacuum tubes respectively, vacuum tube is provided with positive/negative-pressure switching solenoid valve 510, vacuum takeoff 505 is connected with vacuum hose, and vacuum hose is connected with the vacuum access port of paster axle 2.
Described air admission valve 509 is connected with malleation pipeline 512 flat seal by aperture pipeline with positive/negative-pressure switching solenoid valve 510, and the aperture pipeline other end connects the cavity of valve body by screw, controls malleation meticulousr.
Negative-pressure pipeline path is by bending many bends pipeline structure of complexity, make easy straight pipe line structure into, be convenient to install, vacuum pipe design is larger, negative pressure resistance is less, improves suction speed, reduces the fluctuation of vacuum detecting, be convenient to the noise reduction process of analog pressure sensor detection signal, and inside cavity negative pressure value evenly.
The present embodiment vacuum module 5 operation principle: point twice malleation (weak air blowing is pressed and blown by force and presses), twice malleation is respectively by small-sized pressure-reducing valve RB500-SSC4-P(0.1Mpa) with pressure regulating valve R4000-15-W(0.5Mpa) to be switched by electromagnetically operated valve and be connected to pallet 502 of confluxing, weak air blowing pressure is normal operating air pressure, and strong pressure of blowing is for cleaning pipeline foreign material air pressure.
Adopt air admission valve 509 to control the malleation gas circuit of all suction nozzles 202, air admission valve 509 normality position is normally closed, and malleation gas circuit is in by air admission valve 509 and is normally closedly in Chang Kaiwei with positive/negative-pressure switching solenoid valve 510 numbering 1-6 and realizes conducting.Negative pressure out receives separately suction nozzle 2011 to suction nozzle 2016 by air accumulator from vacuum pump, has negative pressure by obtaining equilibrium after improvement.
From being drawn to attachment material, electromagnetically operated valve power on/off situation in this process, when positive/negative-pressure switching solenoid valve 5101-6 is energized, corresponding suction nozzle 201 will be in absorbing material state, the vacuum pressure sensor that air pressure detects on integration module simultaneously detects vacuum, when air admission valve 509 is energized, positive/negative-pressure switching solenoid valve 510 is numbered 1-6 energising, corresponding suction nozzle 201 is still in and holds material state, when air admission valve 509 is energized, positive/negative-pressure switching solenoid valve 510 is numbered any electromagnetically operated valve power-off of 1-6, and corresponding suction nozzle 201 is in attachment material state.
The present embodiment obtains obvious technique effect: originally valve body is threaded on malleation pipeline 512 by cavity, is connected, is connected and fixed the cavity of valve body by screw after improving by aperture pipeline with malleation pipeline 512 flat seal, controls malleation meticulousr.And pallet 502 of confluxing is comparatively simple, pore is comparatively large, and filter assemblies 507 is mounted externally, and after gas circulation, air pressure is more stable.Negative pressure out receives separately suction nozzle 2011 to suction nozzle 2016 by air accumulator from vacuum pump, has negative pressure by obtaining equilibrium after improvement.
Described paster axle 2 comprises suction nozzle 201, suction nozzle 202, soup stick 203, connecting seat assembly 204, described soup stick 203 is the hollow tubes with external splines, connecting seat assembly 204 is connected with soup stick 203 top, connecting seat assembly 204 side is provided with the vacuum hose interface be communicated with soup stick 203, soup stick 203 bottom is connected with suction nozzle 202, and suction nozzle 202 bottom is provided with suction nozzle 201.
Z-direction elevating mechanism 3 comprises 6 the Z-direction drive motors 301 being arranged on mounting head support 1 back side, 6 the Z-direction belt wheel mechanism 302 vertically arranged, the connecting seat assembly 204 of 6 paster axles 2 is connected with the slide block 101 of 6 Z-direction belt wheel mechanism 302, and described Z-direction drive motors 301 makes the slide block 101 of Z-direction belt wheel mechanism 302 move up and down and then pulls paster axle 2 to move up and down.
Z-direction elevating mechanism 3 also comprises 6 springs 303 be fixed on above 6 mounting head supports 1, spring 303 is connected with paster axle 2 connecting seat assembly 204, obtain certain buffering when making paster axle 2 move down stopping, meanwhile, pulling force upwards makes paster axle 2 reset be more prone to.
Z-direction drive motors 301 is set to each three of two rows, is provided with communication interface modules 304 between two rows.
In the present embodiment, R comprises two R to stepping motor 401 to rotation angle mechanism 4, two R are to driving wheel unit 402, six R are to driven pulley unit 403, article two, R is to Timing Belt 404, two described R drive two R to driving wheel unit 402 to stepping motor 401 respectively, a R drives three R to driven pulley unit 403 to driving wheel unit 402, six R are No. 1-6 to driven pulley unit 403 number consecutively, 1, 3, No. 5 R are connected to driven pulley unit 403 and a R to driving wheel unit 402 and are arranged on upper strata, 2, 4, No. 6 R are connected to driven pulley unit 403 and the 2nd R to driving wheel unit 402 and are arranged on adjacent lower floor, R is socketed on soup stick 203 to driven pulley unit 403, spacing by external splines, and then controls paster axle 2R to rotation.
Described mounting head support 1 is general frame structure, and one side is vertically disposed with two pieces of slide blocks 101 and offers the circular hole of hold-down nut 102 at the middle part of same side, and nut 102 is socketed with driving the screw mandrel of placement head movement.
What describe in above-described embodiment and specification just illustrates principle of the present utility model and most preferred embodiment; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.