Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the Minimal Tension wire feeder that a kind of structure is simple, Tensity size is stable is provided.Described Minimal Tension wire feeder can produce the tension force that bridge silk can bear, and guarantees the bridge silk not fracture of wire entering bridge silk robot welding system, realize bridge silk robot welding system automatically, efficiently, welding electrode plug accurately.
A kind of Minimal Tension wire feeder provided by the invention, its technical scheme is:
A kind of Minimal Tension wire feeder, comprises housing, is arranged on the tension rail on housing, silk rolling wheel, clamping element and straining pulley, and the damper be in transmission connection with straining pulley; One end of tension rail is connected with housing, and the other end is provided with pulley.
A kind of Minimal Tension wire feeder provided by the invention, can also comprise following attached technical scheme::
Wherein, damper is hysteresis brake or magnetic damper; Clamping element is wool felt.
Wherein, magnetic force housing being also provided with adjustment of tonicity size regulates capstan, and magnetic force regulates capstan to be connected with magnetic damper.
Wherein, the link of tension rail and housing is provided with swiveling wheel, and swiveling wheel is provided with depressed part, and housing is also provided with stubble warning device switch, and stubble warning device switch-linear hybrid has detection arm, and detection arm and swiveling wheel touch.
Wherein, housing is also provided with the back tension adjusting knob of adjustment of tonicity bar tension force, one end of tension rail and housing hinge, tension rail is provided with extension spring, and one end of extension spring is connected with tension rail, and the other end is connected with back tension adjusting knob.
Wherein, housing is also provided with the wool felt adjusting knob, Anti-skid sheet and the Warning Mark that regulate wool felt clamping force.
Wherein, on described Minimal Tension wire feeder, supply has bridge silk, and bridge silk walks around clamping element, straining pulley, silk rolling wheel successively, is connected after finally walking around the pulley on tension rail with bridge wire bond welding system.
Wherein, Minimal Tension wire feeder can form the tension force of 1g ~ 10g weight size to bridge silk.
The present invention also provides a kind of bridge silk robot welding system, and its technical scheme is:
A kind of bridge silk robot welding system, comprise bridge silk positioner, Minimal Tension wire feeder, Minimal Tension wire feeder is above-mentioned a kind of Minimal Tension wire feeder; Bridge silk is sent into bridge silk positioner by Minimal Tension wire feeder.
Wherein, also comprise bracing or strutting arrangement, frock EGR, bridging fibril welding set, chasing-attachment, electrode plug matrix sent into the pay-off of frock EGR; Frock EGR comprises cyclic track and pusher, and cyclic track is provided with frock motion guide groove, and pusher promotes frock and moves in cyclic track; Bridge silk positioner is arranged on cyclic track; Bridging fibril welding set and chasing-attachment are arranged on bracing or strutting arrangement or on cyclic track.
Enforcement of the present invention comprises following technique effect:
Minimal Tension wire feeder of the present invention utilizes magnet principle of opposite sex attraction, and produce damping by magnetic field conversion change in torque, mechanical friction, therefore can produce stable tension for a long time, and precision can effectively be ensured.Regulate magnetic wheel can produce the torsion varied in size.Bridge filament winding straining pulley passes through, and just need the torsion overcoming magnetic wheel generation, spring force elongate rod, by lever principle, is put little, played balanced action and cushioning effect by tension rail, prevents from using section excessive velocities fracture of wire, jumping silk, makes filament exceptionally straight all the time.Freely can also adjust back tension, the wrapping wire of square framework can be adapted to and sharply change the wrapping wire of wire winding speed, can not fracture of wire be produced.When fracture of wire and silk material are finished, reported to the police by the circuit wire detecting device equipped, spiral filament forming machine stops automatically.Wool felt can play clamping and filter the effect of bridge silk, and straining pulley is the parts producing opinion power, and tension adjustment capstan is the parts of adjustment of tonicity size.
Bridge silk robot welding system of the present invention solves bridge wire bond and connects full automatic technique bottleneck, and production efficiency is more reasonable than the same category of device process route of U.S. individual businesses, efficiency is higher.The welding of the field jackshaft silks such as safe automobile air bag, military various igniter, commercial electric detonator, geological prospecting vibration source bullet, rainfall-increasing and anti-hail rocket, Aero-Space model, safety belt micro gas generator can be widely used in.The present invention has broken technology embargo and the high-tech blockade of individual businesses of the U.S., substantially increase our competitiveness, product for us substitutes import completely and lays a good foundation, better meet the demand in market, drive the development of domestic industry, enhance the international competitiveness of association area.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail, it is pointed out that described embodiment is only intended to be convenient to the understanding of the present invention, and any restriction effect is not play to it.
See Fig. 1 to Fig. 5, a kind of Minimal Tension wire feeder that the present embodiment provides, comprises housing 300, and is arranged on tension rail 301 on housing 300, silk rolling wheel 304, clamping element and straining pulley 302, and the damper be in transmission connection with straining pulley 302; Damper can be hysteresis brake or magnetic damper 315, and in the present embodiment, damper is magnetic damper 315, and clamping element is wool felt 305.One end of tension rail 301 is connected with housing 300, and the other end is provided with pulley 306; The trend of the present embodiment jackshaft silk 96 is as follows: bridge silk 96 is by wool felt 305, then the straining pulley 302 be in transmission connection with magnetic damper 315 is entered, bridge silk 96 winds with one circuit around straining pulley 302, straining pulley 302 can rotate around the central shaft of magnetic damper 315, magnetic damper 315 provides constant moment of torsion for straining pulley 302, thus provide tension force for bridge silk 96, then walk around silk rolling wheel 304, after finally walking around the pulley 306 be fixed on tension rail 301, be supplied to bridge wire bond welding system.Bridge silk 96 is Jellif silks, and the diameter of bridge silk 96 is 0.010mm ~ 0.050mm, and the diameter of preferred bridge silk 96 is 0.020mm or 0.024mm or 0.028mm.Minimal Tension wire feeder can form the tension force of 1g ~ 10g weight size that it can bear to bridge silk 96, the bridge silk 96 guaranteeing to enter bridge silk robot welding system not fracture of wire and easily aim at welding; Realize bridge silk robot welding system automatically, efficiently, welding electrode plug accurately.
As the present embodiment further preferably, the magnetic force housing 300 of Minimal Tension wire feeder 3 being also provided with adjustment of tonicity size regulates capstan 303, and magnetic force regulates capstan 303 to be connected with magnetic damper 315.The end that tension rail 301 is connected with housing 300 is provided with swiveling wheel 313, swiveling wheel 313 is provided with depressed part 314, housing 300 is also provided with stubble warning device switch 307, and stubble warning device switch 307 is provided with detection arm 312, and detection arm 312 and swiveling wheel 313 touch; When in use procedure during fracture of wire, tension rail 301 raises up, and the depressed part 314 of swiveling wheel 313 turns to the bottom of detection arm 312, causes detection arm 312 can not touch swiveling wheel 313, thus triggers stubble warning device switch 307 and report to the police.Housing 300 is also provided with the back tension adjusting knob 308 of adjustment of tonicity bar 301 tension force, one end and the housing 300 of tension rail 301 are hinged, tension rail 301 is provided with extension spring, one end of extension spring is connected with tension rail 301, the other end is connected with back tension adjusting knob 308, by the size regulating the position of extension spring to realize adjustment of tonicity bar 301 back tension.Housing 300 is also provided with the wool felt adjusting knob 309 regulating wool felt 305 clamping force, can guarantees that wool felt 305 gives bridge silk 96 suitable clamping force.Minimal Tension wire feeder is also provided with the holder 310 of stationary housing 300.Straining pulley 302 is provided with the Anti-skid sheet preventing bridge silk 96 from skidding.Minimal Tension wire feeder is also provided with Warning Mark, and under normal service condition, tension rail 301 flushes with Warning Mark, if do not flushed, capstan 303 can be regulated to regulate by back tension adjusting knob 308 and magnetic force.
See a kind of Minimal Tension wire feeder force analysis schematic diagram that Fig. 6 is embodiment, wherein F1=F2 is equivalent to the power that magnetic damper produces, F
3be equivalent to power (back tension) upwards suffered by tension rail, F
4be equivalent to rotating shaft to the downward power of tension rail end one, G
1be equivalent to the gravity of pulley self.
Middle whole system is in poised state (making a concerted effort to be zero) and bridge silk is strained and not fracture of wire in working order, and therefore the moment sum of total is zero, that is:
(F
1+F
2+G
1)*L
AC+F
3*L
BC+F
4*0=0
Wherein, A is tension rail pulley end, and B is the end that tension rail is connected with housing, and C is the link position of extension spring and tension rail, L
aC, L
bCrepresent the length of AC and BC respectively, on tension rail, extension spring junction is 10: 1 ~ 100: 1 (L to length and the extension spring junction of described pulley end to the length ratio of described housing junction
aC: L
bC).
The wire feeder of the present embodiment ensure that bridge silk is achieved stable wire feed under small tension receiving coil effect, meets the needs of automatic feeding.
Magnetic damper uses magnetic theory, active and passive pair of magnetic pair by the contactless connection of magnetic force, carries out moment transmission.Regulate the size of gaps between magnetic pair, damping torque can be adjusted to maximum from zero.After air gap distance is locked, the large I of the damping torque in operation process keeps long term constant, and can not changing rotation speed change with active and passive parafacies.Be characterized in that magnetic damper is made up of two and half pairs, structure is simple, and connect by magnetic force in operation process, both are without direct contact friction.Gap adjustment (i.e. torque adjusting) is convenient, and installation dimension is little, long service life, fault-free.
The using method of magnetic damper has: (one), by fixing for half secondary any for the magnetic of damper pair, separately half is secondary with the rotation of wire tray axle, and damper will grant the constant damping torque of wire tray axle.As this half pair is contained on sizing guide wheel shaft, then silk, with making silk when drawing on sizing guide wheel, with a constant tension force.(2) secondary for the magnetic of damper any half pair is fixed on line shaft, fixing another half pair on driven axle, line shaft is when rotating, driven axle obtains a constant rotating torque, after the magnetic auxiliary air gap of damper is set up, the torque that driven axle obtains can not because of load change cause slip change and change.
The present embodiment additionally provides a kind of bridge wire bond welding system, for bridge wire bond is connected on electrode plug matrix.See Fig. 9, Figure 10 a, Figure 10 b, show the electrode plug for preparation, comprise core electrode 90, bridge silk 96, insulating barrier 91 and stopper 92 with holes, core electrode 90 is arranged in the hole of stopper 92, insulating barrier 91 is provided with between core electrode 90 and stopper 92, stopper 92 is connected with the first electrode needle 93, core electrode 90 is connected with the second electrode needle 94; Bridge silk 96 welds with core electrode 90 and stopper 92, and bridge silk 96 and stopper 92 have two or more solder joint 97; Core electrode 90 is arranged on inside stopper 92 with holes, then by insulating materials, core electrode 90 and stopper 92 is insulated.Easily weld because stopper 92 has larger bonding area, therefore only bridge silk 96 aligned with core electrode 90 need be welded in mechanical welding termination process.First electrode needle 93 and/or the second electrode needle 94 are provided with kink 95, and the diameter of kink 95 camber line is 0.2 ~ 0.6mm; The present embodiment is 0.3 ~ 0.5mm preferably, is specifically chosen as 0.45mm, and the setting of kink makes electrode needle near the center of stopper 92, handled easily in mechanical welding termination process.In the present embodiment, the first electrode needle 93 is weld with the connected mode of stopper 92, and the second electrode needle 94 is same wire with core electrode 90; First electrode needle 93 and the second electrode needle 94 have the kink bending to same direction; Electrode needle is coated with copper or gold; The shape of electrode plug is any one in circular, square, ellipse, and the shape in the hole of stopper 92 is any one in circular, square, ellipse; The hole circular of the present embodiment stopper 92; In the present embodiment, stopper 92 and insulating barrier 91 are all annular, and annular insulating barrier 91 is wrapped in core electrode 90, and the stopper 92 of annular is wrapped in the insulating barrier 91 of annular; Core electrode 90 is teleoseal materials, close with the coefficient of thermal expansion and contraction of bridge silk 96; Insulating barrier 91 can be selected to be ceramic material or thermosetting plastics injected plastics material or high temperature sintering glass, and stopper 92 is metal materials.The diameter of electrode plug is 5 ~ 10mm, and the thick 0.5 ~ 1.2mm of insulating barrier 91 between core electrode 90 and stopper 92, the diameter of core electrode 90 is 0.6 ~ 2mm.The present embodiment is preferred, and the diameter of electrode plug is 7.1mm, and the thick 0.827mm of insulating barrier 91 between core electrode 90 and stopper 92, the diameter of core electrode 90 is 1.026mm.Bridge silk 96 is Jellif silks, and the diameter of bridge silk 96 is 0.020mm or 0.024mm or 0.028mm.The present embodiment electrode plug can generate heat instantaneously at 3 milliseconds and reach more than 1000 degree Celsius, and serviceability is superior.
See Fig. 7 and Fig. 8, a kind of bridge wire bond welding system that the present embodiment provides, comprise: the frock EGR 2 of carry electrode plug matrix (electrode plug of non-welded bridge silk), unordered electrode plug matrix is sent into the pay-off 1 of frock EGR, for transmitting bridge silk and bestowing the Minimal Tension wire feeder 3 (concrete structure is as shown in above-described embodiment) of bridge silk some tension, the bridge silk positioner 4 that bridge silk 96 is aimed at the solder joint of electrode plug matrix, by the bridging fibril welding set 5 that bridge silk welds with electrode plug matrix, for cutting off the chasing-attachment 6 of bridge silk, qualified checkout gear 7 whether is welded for detecting electrode plug, and bracing or strutting arrangement 80, bracing or strutting arrangement 80 is for supporting tool EGR 2 or other device feature, and Minimal Tension wire feeder 3 can be arranged on bracing or strutting arrangement 80, bridge silk positioner 4 is arranged on cyclic track 20, Minimal Tension wire feeder 3, bridging fibril welding set 5 and chasing-attachment 6 are arranged on bracing or strutting arrangement 80 or cyclic track 20, Minimal Tension wire feeder 3 can produce the tension force of 1g ~ 10g weight size, the tension force of preferred 2g weight size.Pay-off is sent into electrode plug matrix in the frock in cyclic track, and electrode plug matrix moves in cyclic track along with frock, sequentially passes through bridge silk positioner, bridging fibril welding set and chasing-attachment; On the core electrode that bridge silk positioner is positioned at electrode plug matrix the bridge silk be connected with Minimal Tension wire feeder and stopper, bridging fibril welding set is connected on bridge wire bond on electrode plug matrix, the electrode plug welded moves to below chasing-attachment through cyclic track, chasing-attachment cuts off the bridge silk on the electrode plug welded, electrode plug enters checkout gear, so repeats the welding of next electrode plug matrix.In the present embodiment, bridging fibril welding set 5 can select electric current heat molten type welding machine; Pay-off 1 can select magnetic centrifugal oscillation feed gear, solves the problem that electrode plug matrix is difficult to injection; Checkout gear 7 can select resistance-type checkout gear, solves the problem that human weld's efficiency is low, welding is unstable; Electrode plug matrix can select glass sintering electrode plug matrix, breaks the drawback that electrode plug is in the past difficult to adopt machinery welding.
See Figure 11 and Figure 12, the frock EGR that the present embodiment provides comprises cyclic track 20, pushing block 21 and pusher 22, the motion guide groove of frock 23 is provided with in cyclic track 20, electrode plug matrix is placed in frock 23, pushing block 21 moves for promoting frock 23 step-by-step movement, and pusher 22 controls pushing block 21 and moves; Pusher 22 is Pneumatic push devices, and Pneumatic push device comprises cylinder and the air cylinder support for supporting cylinder; Cyclic track 20 is back-shaped chain-type cyclic tracks 20, and pusher 22 is arranged on four angles of back-shaped track, and the pusher 22 on four angles can diagonal linkage.The frock EGR structure of the present embodiment is simple, easy to use, and frock 23 can be made to send in cycles, thus automatically and continuously electrode plug matrix is delivered to the welding of welding machine place.Preferred as the present embodiment, frock 23 is provided with the groove 24 of the installation direction for indicating electrode plug and the installing hole 25 of installing electrodes plug matrix, and the diameter of installing hole 25 is greater than the diameter of electrode plug matrix; The distance of step-by-step movement movement is the distance of frock 23 width in the X direction, and the distance of step-by-step movement movement is the distance of frock 23 length in the Y direction; Pusher 22 is also provided with sensor, for detecting the position of frock 23; Cyclic track 20 is provided with manipulator 26, for carrying the electrode plug matrix of coming to move in the installing hole of frock 23 pay-off; Cyclic track 20 is provided with the first locating and detecting device 27 and the second locating and detecting device 28, first checkout gear 27 for the frock 23 on positioning cycle track 20 position thus adjustment manipulator action, whether second detection device 28 is set level for the electrode plug matrix detected in frock hole; Cyclic track 20 is provided with infrared detecting device 29, for detect circulation frock 23 installing hole in whether be empty, if also there is electrode plug in installing hole, then report to the police and stop circulation.Its workflow is, order mounting tool in cyclic track, and manipulator moves to the electrode plug matrix that pay-off is sent here in the installing hole in frock, and then pusher promotion pushing block step-by-step movement moves, thus realizes frock circulation.The diameter of installing hole is slightly larger than the diameter of electrode plug matrix, if the solder side of electrode plug matrix is out-of-level, if electrode plug matrix is uneven, by pressing down electrode plug matrix solder side or regulating the mode of oscillating electrode pin to regulate the solder side level of electrode plug matrix, welding precision can be ensured.
See Figure 13 and Figure 14, the bridge silk positioner that the present embodiment provides comprises multiple thread pressing wheel 40, multiple thread pressing wheels 40 are separately positioned on the both sides of welder 5, preferably, also comprise plural crochet hook 43, wherein the crotch direction of a part of crochet hook 43 inwards, and the crotch direction of a part of crochet hook 43 is outside in addition, crochet hook 43 is arranged between thread pressing wheel 40, and the core electrode that can realize bridge silk and electrode plug matrix is accurately located.Bridge silk positioner also comprises the spring 41 to the force application apparatus 42 of thread pressing wheel force and transmitting force, and spring 41 is arranged between thread pressing wheel 40 and force application apparatus 42, guarantees the pressure uniform of thread pressing wheel 40; Bridge silk positioner also comprises wearing and send the positioning pulley 44 of bridge silk and the wired of clamping bridge silk to take turns 45, and positioning pulley 44, for transmitting bridge silk, wiredly takes turns 45 for the clamping bridge silk when initial cable stay bridge silk, realizes bridge silk and is positioned on weld horizontal line.The observation device 47 whether core electrode that bridge silk positioner can also comprise observation bridge silk and electrode plug matrix aligns, observation device 47 can be magnifying glass.
The bridge silk positioner that the present embodiment provides, structure is simple, easy to use, can be that the bridge silk of tens micron number magnitudes and the millimetre-sized core electrode of electrode plug matrix are accurately located by diameter, realize machine automatization welded bridge silk.During initial cable stay bridge silk, bridge silk pulls out from coil, through the tension rail on Minimal Tension wire feeder, through pulley break-in, through crochet hook (located by crochet hook and ensure that bridge silk aligns with electrode plug center), clamped by bridge silk to wired place of taking turns, tensioner is by stretching for the tension of bridge silk, and then bridge silk is pressed in frock by thread pressing wheel again.Moving forward of bridge silk is driven by the movement of frock in continuous welding process.
The present embodiment additionally provides a kind of using method of bridge wire bond welding system, specific as follows:
See a kind of bridge wire bond welding system of Fig. 7 and Fig. 8, comprise the vibrating disk 10 for automatic charging, for the base 11 of fixing vibrating disk, for transmitting the straight line feeder 13 of raw material, for capturing the manipulator 26 of electrode plug matrix, for the first locating and detecting device 27 of positioning tool, for the second locating and detecting device 28 whether the electrode plug matrix detected in frock hole is set level, for pushing the pusher 22 of frock, for straining the Minimal Tension wire feeder 3 of bridge silk, positioning pulley 44, 45 are taken turns for the wired of clamping bridge silk, thread pressing wheel 40, for the bridging fibril welding set 5 of welded bridge silk, for cutting off the chasing-attachment 6 of bridge silk, successful checkout gear 7 whether is welded for detecting electrode bridge silk beyond the Great Wall, defective work outlet 70, certified products outlet 71, whether be empty infrared detector 29 for detect in frock hole, for the master station 8 of control automation system running.
The using method of bridge wire bond welding system is as follows:
1), start checks: open master station 8, whether checkout facility power supply, air pressure, feed etc. are normal.
2), bridge silk is installed and location: by diameter be the bridge silk of 0.028mm from Minimal Tension wire feeder 3 through (tension force is about 2 grams), the preferred magnet type tensioner of Minimal Tension wire feeder, bridge silk 96 is walked around after positioning pulley 44 through the below of thread pressing wheel 40, be located (guaranteeing that bridge silk and diameter are that the electrode plug matrix core electrode of about 1mm aligns) through bridge silk positioner, and take turns the clamping of 45 places wired.
3), material loading: the present embodiment preferred magnetic centrifugal vibration automatic charging device, appropriate electrode plug matrix is added in vibrating disk 10, by vibrating disk 10 by electrode plug matrix marshalling one by one, deliver to straight line feeder 13 continuously, then by the vibrations of material loading track, electrode plug matrix is delivered to manipulator 26 crawl position.
4), back-shaped track transmission: track has 118 frock clamps be numbered, 4, track corner Pneumatic push device 22 diagonal angle interlock, promote frock circular flow.
5), electrode plug matrix transmission: when infrared detecting device detects that gripper of manipulator fetch bit is equipped with electrode plug matrix, getting electrode plug matrix by gripper of manipulator moves to above frock, simultaneously by the first locating and detecting device 27 by the tool locating in track, electrode plug matrix is put into frock by manipulator.Push frock to the second locating and detecting device 28 operative position by pusher, then located by electrode plug matrix by the second locating and detecting device 28, guarantee that electrode plug matrix and frock are in same level, frock continues pushed reach.
6), automatic feeding: bridge silk is pressed in frock by thread pressing wheel 40, promotes frock reach by pusher 22, and frock drives the reach of bridge silk, realizes automatic feeding.
7), welding: system is to the frock counting that workpiece is housed from manipulator material loading, and when frock pushes to bridging fibril welding set position, system automatically identifies and starts welding system.Then by bridging fibril welding set, bridge wire bond is connected on electrode plug matrix.Welding machine operation principle: before welding, automatic checkout system detects the electrode plug matrix in frock, clamping cylinder clamping electrode plug matrix afterwards, soldering tip presses down, guarantee to fit completely in soldering tip and electrode plug substrate contact face by the universal joint pressing from both sides soldering tip place, after-current pass through from the contact surface of soldering tip, form the thermal welding of moment, complete welding.
8), yarn break inspect and warning: after having welded, thread pressing wheel 40 is micro-to be lifted at every turn, and Minimal Tension wire feeder 3 pairs of bridge silks whole process are stressed monitors, if there is fracture of wire phenomenon, the tension rail of Minimal Tension wire feeder loses power and raises up, and triggering alarm system, automatic welder(welding machine) is out of service.
9), chopping, resistance detection: by chasing-attachment 6, the bridge silk at electrode plug two ends is cut off after having welded, detected the resistance value whether qualified (qualified resistance value scope 1.8-2.0 Ω) of electrode plug in frock by checkout gear 7.
10), discharging opening detects: system counts from resistance detection position to frock reach, and defective work pushes to after defective work outlet 70 is identified automatically by system and got by high pressure draught, and certified products are got from certified products outlet 71 by high pressure draught.The discharge pipe that discharging opening connects is equipped with automated watch-keeping facility, if there is material not draw off, system automatic alarm is also shut down.
11), finally by pusher 22 empty frock is pushed to initial position, and so forth.
Electrode plug matrix is defined as the structural member not being welded with bridge silk, is called electrode plug (electric firing part) after being welded with bridge silk.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.