Bush press-mounting machine
Technical field
The present invention relates to car combustion engine manufacturing technology field, belong in a kind of IC engine link rod assembling process, for lining being pressed into the bush press-mounting machine of connecting rod aperture.
Background technology
On existing automobile manufacturing enterprise IC engine link rod, the assembling of lining adopts manual operations more, and operation is inconvenient, production efficiency is low, cannot meet the needs of factory's mass production.
ZL201020660682.6 proposes a kind of wheel hub bush press-mounting machine, adopts by hand lining is adsorbed on lining mount pad, then starts Driven by Hydraulic Cylinder lining is pressed into wheel hub, completes and presses lining assembly work.But this operation efficiency is low, labour intensity greatly, once can only press-fit a wheel hub, and adopts the hydraulic cylinder mode of colding pressing, and pressing-in force is uncontrollable, it is inhomogeneous to press-fit, and surface laminating not closely and easily produce sleeve outer surface and scratch, affects assembly quality.
Summary of the invention
The object of this invention is to provide one easy to use, the bush press-mounting machine that labour intensity is low, operating efficiency is high.
For achieving the above object, the present invention takes following design:
A kind of bush press-mounting machine, comprises frame, Work turning table, connecting rod hydraulically operated fixture, the little hole positioning device of connecting rod, connecting rod aperture inner surface heater, lining feeding device, bushing press-mounting device, lining guiding device; Work turning table is fixed in frame, is positioned at equipment center, is provided with three stations, comprises connecting rod load/unload stations, connecting rod aperture heating station, bushing press-mounting station.Connecting rod hydraulically operated fixture is uniformly distributed and is arranged on turntable, rotates together with turntable around central shaft; Connecting rod aperture inner surface heater, lining feeding device, bushing press-mounting device are distributed in Work turning table periphery.The connecting rod being fixedly clamped is with the rotated a circle work that press-fits of connecting rod aperture lining of turntable.
Preferably, the little hole positioning device of described connecting rod is arranged on the connecting rod load/unload stations of Work turning table, and integral installation, below Work turning table, by Driven by Hydraulic Cylinder, can move up and down.On every cover connecting rod hydraulically operated fixture, be provided with fixing connecting rod macropore alignment pin.The movable little hole positioning device of connecting rod and connecting rod macropore alignment pin are used in conjunction with, and realize the accurate location of connecting rod.Pinpoint connecting rod is clamped by connecting rod hydraulically operated fixture.
Preferably, described connecting rod aperture inner surface heater is arranged on the connecting rod aperture heating station of Work turning table, is positioned at a side of Work turning table, takes high-frequency heating mode, the little internal surface of hole of instantaneous heating connecting rod.The heating tube of snakelike winding, coaxial with connecting rod aperture, realize upper-lower position by air cylinder driven and move, stretch into and depart from connecting rod aperture.
Preferably, described lining feeding device is made up of sort conveying device, lining normotopia device, lining grabbing device of lining.The connecting rod aperture axle center of blanking position, normotopia device and the bushing press-mounting station of lining sequence conveying device, on same straight line, is positioned at the same side of lining grabbing device.Described lining grabbing device is made up of servomotor, ball-screw, catching robot.Catching robot is fixed on the slide of ball-screw, by driven by servomotor, through ball-screw-transmission, realizes exact position and moves.Described lining normotopia device is made up of normotopia gas pawl, positive level sensor, rotation gas distribution device, reducing motor, distribution slip ring.Gas pawl clamps lining lower end periphery, and the reducing motor band pawl low speed rotation of taking offence, when positive level sensor detects bushing oil hole, cuts off circuit, stops the rotation, and realizes the circumferencial direction normotopia of lining.
Preferably, described bushing press-mounting device is made up of servomotor, reductor, electric cylinder, pressure sensor, guide pillar, guide pin bushing, last item, and each assembly is coaxially installed, and is arranged on the top of the bushing press-mounting station connecting rod aperture of Work turning table.Guide pillar is connected with the piston rod of electric cylinder, and centre is provided with pressure sensor, monitors be in real time the pressed into pressure of last item to lining.Last item is installed on guide pillar bottom.Servomotor slows down through reductor, drives electric cylinder, drives guide pillar to move up and down along guide pin bushing, accurately controls last item position.
Preferably, described lining guiding device is made up of spindle nose, guide pillar, guide pin bushing, hydraulic cylinder, and each assembly is coaxially installed, and is arranged on the below of the bushing press-mounting station connecting rod aperture of Work turning table.Spindle nose is fixed on guide pillar top.Lining inner hole sleeve is on the periphery of spindle nose, and Driven by Hydraulic Cylinder spindle nose moves up and down, and guide bushing enters connecting rod aperture.Lining guiding device coordinates bushing press-mounting device that lining is pressed into connecting rod aperture.
Beneficial effect of the present invention is: easy to use, operating efficiency is high, and assembly quality is reliable and stable.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is schematic top plan view of the present invention;
Fig. 3 is lining feeding device structural representation of the present invention;
Fig. 4 is bushing press-mounting device structural representation of the present invention;
Fig. 5 is lining guiding arrangement structure schematic diagram of the present invention.
1-frame; 2-Work turning table; 3-connecting rod hydraulically operated fixture; The little hole positioning device of 4-connecting rod; 5-connecting rod aperture inner surface heater; 6-lining feeding device; 7-bushing press-mounting device; 8-lining guiding device; 9-connecting rod; 10-lining; 301-macropore alignment pin; 401-hydraulic cylinder; 501-heating tube; 502-cylinder; 503-bearing; 504-guide pillar; 610-lining sequence conveying device; 620-lining normotopia device; 621-normotopia motor; 622-reductor; 623-rotates gas distribution device; 624-distribution slip ring 625-normotopia gas pawl; The positive level sensor of 626-; 630-lining grabbing device; 631-servomotor; 632-ball-screw; 633-catching robot; 701-support; 702-servomotor; 703-reductor; 704-electric cylinder; 705-piston rod; 706-pressure sensor; 707-movable sleeve; 708-spacing ring; 709-guide pillar; 710-guide pin bushing; 711-last item; 712-guide pin bushing bearing; 801-seeker; 802-guide pillar; 803-guide pin bushing; 804-contiguous block; 805-mount pad; 806-hydraulic cylinder; 901-connecting rod aperture; 902-connecting rod macropore.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1 and Figure 2, a kind of bush press-mounting machine, comprises frame 1, Work turning table 2, connecting rod hydraulically operated fixture 3, connecting rod aperture positioner 4, connecting rod aperture inner surface heater 5, lining feeding device 6, bushing press-mounting device 7, lining guiding device 8; Work turning table 2 is fixed in frame 1, is positioned at equipment center, is provided with three stations, comprises connecting rod load/unload stations A, connecting rod aperture heating station B, bushing press-mounting station C.Work turning table 2, by driven by servomotor, can be realized accurate calibration location by end-toothed disc.Connecting rod hydraulically operated fixture 3 is uniformly distributed and is arranged on Work turning table 2, rotates together with turntable 2 around central shaft; Connecting rod aperture inner surface heater 5, lining feeding device 6, bushing press-mounting device 7 are distributed in Work turning table 2 peripheries.The connecting rod being fixedly clamped is with the rotated a circle work that press-fits of connecting rod aperture lining of turntable 2.
As shown in Figure 1, described connecting rod aperture positioner 4 is arranged on the connecting rod load/unload stations A of Work turning table 2, and integral installation, below Work turning table 2, is driven by hydraulic cylinder 401, can move up and down.On every cover connecting rod hydraulically operated fixture 3, be provided with fixing connecting rod macropore alignment pin 301.Movable connecting rod aperture positioner 4 is used in conjunction with connecting rod macropore alignment pin 301, realizes the accurate location of connecting rod 9.Pinpoint connecting rod 9 is clamped by connecting rod hydraulically operated fixture 3.
As shown in Figure 1 and Figure 2, described connecting rod aperture inner surface heater 5 is arranged on the connecting rod aperture heating station B of Work turning table 2, is positioned at a side of Work turning table 2, is arranged on bearing 503.Take high-frequency heating mode, instantaneous heating aperture 901 inner surfaces.The heating tube 501 of snakelike winding, coaxial with connecting rod aperture 901, drive along guide pillar 504 and move up and down by cylinder 502, stretch into and depart from connecting rod aperture 901.
As shown in Figure 1, Figure 2, Figure 3 shows, described lining feeding device 6 is made up of lining sequence conveying device 610, lining normotopia device 620, lining grabbing device 630.Connecting rod aperture 901 axle center of blanking position, normotopia device 620 and the bushing press-mounting station of lining sequence conveying device 610, on same straight line, are positioned at the same side of lining grabbing device 630.
As shown in Figure 3, described lining grabbing device 630 is made up of servomotor 631, ball-screw 632, catching robot 633.Catching robot 633 is fixed on the slide of ball-screw 632, is driven by servomotor 631, through ball-screw 632 transmissions, realizes exact position and moves.Catching robot 633, by air cylinder driven, is realized the position transfer of lining between blanking position, the normotopia gas pawl 625 of normotopia device 620 and the spindle nose 801 of bushing press-mounting station C lining guiding device 8 of conveying device 610.
As shown in Figure 3, described lining normotopia device 620 is made up of normotopia gas pawl 625, positive level sensor 626, rotation gas distribution device 623, reductor 622, motor 621, distribution slip ring 624.Normotopia gas pawl 625 clamps lining 10 lower end peripheries, and motor 621 is with pawl 625 low speed rotation of taking offence after reductor 622 slows down, and when positive level sensor 626 detects lining 10 oilhole, cuts off circuit, stops the rotation, and realizes the circumferencial direction normotopia of lining 10.
As shown in Figure 4, described bushing press-mounting device 7 is made up of servomotor 702, reductor 703, electric cylinder 704, pressure sensor 706, guide pillar 709, guide pin bushing 710, last item 711, each assembly is coaxially installed, be fixed on bearing 701, be arranged at the top of the bushing press-mounting station C connecting rod aperture 901 of Work turning table 2.Piston rod 705 lower ends of electric cylinder 704 have been bolted movable sleeve 707, guide pillar 709 tops are embedded in movable sleeve 707 endoporus by spacing ring 708, between movable sleeve 707 and guide pillar 709, be provided with pressure sensor 706, monitor be in real time the pressed into pressure of last item 711 to lining 10.Guide pin bushing 710 is embedded in the hole of guide pin bushing bearing 712, is fixed on bearing 701.Last item 711 is secured by bolts in guide pillar 709 bottoms.Servomotor 702 slows down through reductor 703, drives electric cylinder 704, drives guide pillar to move up and down along guide pin bushing, accurately controls last item 711 positions.
As shown in Figure 5, described lining guiding device 8 is made up of spindle nose 801, guide pillar 802, guide pin bushing 803, hydraulic cylinder 806, and each assembly is coaxial, is arranged on the below of the bushing press-mounting station C connecting rod aperture 901 of Work turning table 2.Guide pin bushing 803 is fixed on mount pad 805, and spindle nose 801 is secured by bolts in guide pillar 802 tops, and guide pillar 802 is connected by contiguous block 804 with the piston rod of hydraulic cylinder 806.Lining 10 inner hole sleeves are on the periphery of spindle nose 801, and hydraulic cylinder 806 drives spindle nose 801 to move up and down along guide pin bushing 803, and guide bushing 10 enters connecting rod aperture 901.Under the cooperation of lining guiding device 8, lining 10 is pressed into connecting rod aperture 901 by bushing press-mounting device 7.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.