CN1432447A - Jointer - Google Patents
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- CN1432447A CN1432447A CN 03100635 CN03100635A CN1432447A CN 1432447 A CN1432447 A CN 1432447A CN 03100635 CN03100635 CN 03100635 CN 03100635 A CN03100635 A CN 03100635A CN 1432447 A CN1432447 A CN 1432447A
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Abstract
The present invention provided a joining device which controls a pressurizing force easily, surely, finely and also automatically. The device is equipped with a driving means 41 for driving a movable electrode transfer means 40, an operating means 43 for transmitting a signal for instructing the operation of the driving means 41, and a controller 42. The controller 42, on the basis of the signal transmitted from a sensor 15 for detecting a set pressurizing force and from the operating means 43, controls the operation of the driving means 41 for driving the movable electrode transfer means 40, in a manner enabling a movable electrode 12 to stop at each of the retreat position the joining position and the temporary stop position set before the joining position on a path going from the retreat position to the joining position. The controller 42 also has the ability to automatically change at least the joining position of the movable electrode 12, on the basis of a detection signal from the sensor 15 for detecting a set pressurizing force.
Description
Technical field
The present invention relates under pressurized state, can realize the appropriate engagement device that engages to assembling parts.
Technical background
Can realize that under pressurized state the engagement device that part to be joined engages has been known.Be useful on the welder of spot-welded on (spot welding) and seam welding (seam welding) etc., the soft soldering apparatus of soft heat formula etc. as this engagement device.
Above-mentioned welder is used for as miniature electric utensil part, specifically, between the part of the parts of representing the miniature electric utensil, as in small-sized assembled battery, utilizing the thickness degree is the lead of 20 μ m, engage between homopolarity electrode a plurality of batteries, with joint of small machine coil etc., be used in the stack or the butt joint of the part of forming by jointing metal, be the pressure that applies regulation in its junction by single or a plurality of movable electrodes, and utilize between movable electrode and fixed electrode or a plurality of movable electrode is switched on each other, at junction turn-on current (welding current), utilize resistance heating at this moment, fusion is pressurizeed the junction and is engaged.
Above-mentioned soft soldering apparatus, as the miniature electric utensil part that is used for portable phone etc. realizes that each other electricity connects, just the joint with electronic component is involutory with the convex ridge of corresponding tellite, square from it heating soldering tip with the polishing head that applies authorized pressure, the scolding tin of fusing is coated in the apposition position of above-mentioned joint and convex ridge, promptly in energising, realizes physical engagement.
In such engagement device, in the butt joint of junction, plus-pressure is very important with electrode (movable electrode).That is when plus-pressure is excessive, junction dislocation, junction depression take place even in defective like this situations such as junction perforation.Therefore, need the plus-pressure of regulation correctly to be applied to the technology of junction.Also have, be used for normally 1.0-1.5Kg of plus-pressure that miniature parts engages each other, be controlled at per unit 100g usually as the plus-pressure precision.
But, existing engagement device, when producing in a large number, be used in that to require in the custom-designed special purpose machinery according to workpiece (being engaged part) be can not produce any problem, when carrying out the joint of the short product of many kinds produced in small quantities and life of product in making, also be used in the inexpensive devices by the conventional design specification that versatility is arranged of manually operating.
Figure 10 represents the example as a welder of the existing engagement device with versatility.
As shown in figure 10, the welder 1 as existing engagement device has operating desk 2 (only illustrating a part among Figure 10) and is arranged on this electrode supporting platform 3 above operating desk 2.Also have, with the right side in Figure 10 of welder 1 with the operator when carrying out welding operation over against be called face side FS, the position of the reverse side relative with face side FS in left side that will be in Figure 10 is called rear side BS.And the support zone 3b that electrode supporting platform 3 uprightly is provided with upward by the end of top workbench installation position 3a that is installed in operating desk 2 and the rear side BS above the 3a of this workbench installation position is formed the positive shape that roughly is the L word.The basic part 4a of fixed electrode anchor clamps 4 is fastened on above the face side end of workbench installation position 3a, makes bar-shaped fixed electrode 5 and can be fastened on the face side end of fixed electrode anchor clamps 4 along its point upward with loading and unloading.On a lateral location of the face side of support zone 3b, towards above-below direction, rail plate 6 is fixed at its length direction, and slide plate 7 can be supported on this rail plate 6 movably along this rail plate 6.
The left side wall 8L that forms the plumb joint 8 of anti-コ font is fixed on the face side one side of above-mentioned slide plate 7.The movable electrode fixture support axle 9L of pair of right and left, 9R connect at above-below direction by sliding bearing 10 and move back and forth on the lower wall 8D that freely is supported on this plumb joint 8.These movable electrode fixture support axles 9L, 9R is being provided with by the compartment of terrain, front and back, the basic part 11a of movable electrode anchor clamps 11 is fixed on the above-mentioned back shaft 9L that stretches out from the below of plumb joint 8 respectively with bridge connected, on the lower end part of 9R, on the face side end of these movable electrode anchor clamps 11, fixing being made into bar-shaped movable electrode 12, detachable along its pointed end direction, and tip of it is most advanced and sophisticated and said fixing electrode 5 aligns.The movable electrode fixture support axle 9L of rear side BS is shorter, its upper end is in the inboard of plumb joint 8, specifically be outstanding between upper wall 8U in Figure 10 of plumb joint 8 and the lower wall 8D, and the movable electrode fixture support axle 9R of face side FS is longer, its upper end is above plumb joint 8, specifically be outstanding from the top perforation of plumb joint 8 upper wall 8U, and, the mid portion of the movable electrode fixture support axle 9R of the upper surface of the movable electrode fixture support axle 9L of rear side BS and the face side FS of its sustained height adopts connecting plate 13 to interconnect.Also have,, on the periphery of back shaft 9R, the pressing spring 14 that is formed by compression helical spring is housed in the top position of the connecting plate 13 of the movable electrode fixture support axle 9R of face side FS.(symbol 9 is movable electrode fixture support axle 9L of pair of right and left to this pressing spring 14 at 2 movable electrode fixture support axles 9, the general name of 9R) phase butt joint 8 is moved upward, and during rising, its axial length is shunk, thereby produce the spring compression stress, obtain plus-pressure by this compression stress.
The middle part that sets the position of 2 movable electrode fixture support axles 9 on the lower wall 8D of above-mentioned plumb joint 8 is provided with microswitch 15 as setting the plus-pressure detecting sensor, to detect the moment that plus-pressure reaches setting.This microswitch 15 is electrically connected in the drawings the not computer (CPU) of expression, on the control part 42 that memory etc. constitute, be connected 2 movable electrode fixture support axle 9L, movable electrode 12 on the 9R becomes the state that docks by the workpiece W that is used for components bonding with fixed electrode 5, be that the junction that movable electrode 12 remains on workpiece W applies in the state of stipulating on the stressed bonding station (not shown), rising by connecting plate 13, contact shoe 15a action, therefore, detect the moment that the plus-pressure that is produced because the axial length of pressing spring 14 is shunk reaches setting, just this detection signal can be sent to control part 42.
Below the work top 2a of aforesaid operations platform 2, with driving shaft 18 is the center, and unitary rotation ground is connecting bell crank shape follower link 17 and pedal 19 on this driving shaft 18, and the lower end of the front end of follower link 17 and plumb joint 8 is adopted and is connected connecting rod 16 connections.Therefore, in the operation of trampling pedal 19, plumb joint 8 can be moved downwards.Also have, the operating position of pedal 19 adopts the not brake of expression control among the figure, therefore, the lower dead center of plumb joint 8, being controlled in is the junction of 12 couples of workpiece W of the movable electrode butt joint bonding station when applying the regulation plus-pressure.
Utilization is arranged on rail plate 6 on the above-mentioned electrode supporting platform 3, slide plate 7, plumb joint 8 and constitutes relatively the movable electrode mobile device 20 that movable electrode 12 is done contact departure motion with fixed electrode 5.
Also have, constitute the drive unit 21 that drives movable electrode mobile device 20 by connecting connecting rod 16, follower link 17, driving shaft 18 and pedal 19.
In addition, scheme this source of welding current of not representing and be connected electrically on two electrodes 5,12, between two electrodes 5,12, supply with welding current.
The welding action of the welder 1 of the existing engagement device that constitutes as this structure, shown in the time diagram of Figure 11, the parts workpiece W that will be used to engage is placed on the tip of fixed electrode 5 at overlaying state, the pedal 19 (being designated as pedal among Figure 11) that begins to tramp with one's feet and step on a part that constitutes drive unit 21 by the operator, begin from the initial point shown in solid line Figure 10, trample the position of operating the mobile terminal of representing with double dot dash line among the same figure.And, utilize the operation of trampling of the pedal 19 that begins constantly from t00, driving shaft 18 is rotated in a clockwise direction.By these driving shaft 18 clockwise rotations, the right-hand member of follower link 17 is middle mind-set clockwise direction rotation with driving shaft 18 also, thereby the connection connecting rod 16 of the front end that is connected follower link 17 is moved downwards.Owing to move towards the below of this connections connecting rod 16, plumb joint 8 from position shown in Figure 10 also along with mobile downwards.At this moment, because the slide plate 7 that is fixed on the plumb joint 8 moves downwards along operating slide guideway rail 6,, the motion track of plumb joint 8 docks with the tip of fixed electrode 5 so controlling the tip of movable electrode 12 reliably.And, utilization is to plumb joint 8 moving downwards, the tip of movable electrode 12 (being designated as electrode in Figure 11) is the preservation position of initial point (being designated as initial point among Figure 11) beginning from Figure 10, move with the junction (being designated as surface of the work in Figure 11) of workpiece W towards the tip of fixed electrode 5 and to dock (t01 constantly), promptly plumb joint 8 begins to arrive docking location in the surface of the work butt joint from initial point.At this moment, pressing spring 14 is not compressed, and becomes relaxed state.
But, in fact, be the plus-pressure that when microswitch 15 is connected, just can obtain stipulating, utilize the length (making it have a certain amount of compression) of adjusting knob 50 adjustment pressing spring 14 in advance, and pressing spring 14 is remained between connecting plate 13 and the spring holding member 51.Therefore, so-called above-mentioned relaxed state is unflagging, just says, utilization is adjusted and just do not relaxed after knob 50 is adjusted length.
Also have, after movable electrode 12 arrived docking location, plumb joint 8 still continued to move (T02 constantly) downwards, promptly at tip that keeps movable electrode 12 and the state of junction surface to leaning on of workpiece W, had only plumb joint 8 to descend.Therefore, movable electrode 12 is near plumb joint 8 (t02-t03 constantly).At this moment, with respect to plumb joint 8, movable electrode fixture support axle 9 relatively moves upward, and the connecting plate 13 that is fixed on the movable electrode fixture support axle 9 moves to the direction of the contact shoe 15a that leaves microswitch 15.By moving of this connecting plate 13, pressing spring 14 is compressed and axially shrinks, thereby makes pressing spring 14 compressions.And, the compression stress of pressing spring 14 reaches prescribed level (T04 constantly), and after its compression reached required compression, reaching maximum in the compression of pressing spring 14 became overcompression state (t05 constantly), plumb joint 8 arrives lower dead center, mobile being stopped to its below.Also have, reach moment (t03 constantly) of prescribed level in the compression stress of pressing spring 14, the contact shoe 15a action of microswitch 15, thus, the plus-pressure that compression produced that detection is shunk by the axial length of pressing spring 14, and this detection signal sent to control part.And the control part that receives the plus-pressure detection signal that is sent by microswitch 15 sends welding initiating signal (t03a constantly).And welding initiating signal one sends, and after the extrusion time of being set by the source of welding current, just connects welding current (t04 constantly) between two electrodes 5,12, carries out the joint of workpiece W.Also have, one connects welding current, and the junction of workpiece W is with regard to fusion, because the stressed pushing of pressing spring 14, the position of movable electrode 12 just drops to melts the into degree of depth of surface of the work (T05 constantly).Also have, by the not elastic force effect of the spring of expression among the figure, plumb joint 8 can arrive top dead centre usually, movable electrode 12 is remained on apart from the home position of the ultimate range of fixed electrode 5, the joint of workpiece W junction finishes, at this moment, pin leaves from pedal 19, and original state is recovered at pedal 19, each position.
; welder 1 as existing engagement device will be according to the kind of the workpiece W that is used for components bonding (being engaged part); the thickness of the junction that adapt to change to each thickness of the junction of workpiece W, must correctly apply the plus-pressure of regulation to the junction.For this reason, for the position of the lower dead center of controlling plumb joint 8, must regulate the position that control pin pedal 19 is trampled the brake of position, this spends the problem in time with regard to there being the replacing program.Also have, the position adjustments of brake also needs to consume each electrode 5,12, that is, in operation, need carry out brake position and regulate.Therefore, when not carrying out the position adjustments of brake, actual conditions are to rely on operator's intuition to carry out welding operation.Consequently, exist different and the uneven problem of bond quality parts to the plus-pressure of each components bonding owing to operator's qualification, the individual differences between the operator etc.
Also have, even in soft soldering apparatus as engagement device, in order to control the bottom dead center position of the polishing head that is provided with the heated by electrodes head, must regulate the position of the brake of trampling the position of control pin pedal, this device has the problem the same with welder 1.
Summary of the invention
The present invention be directed to the problems referred to above and produce, can be easy, reliable, trickle to provide, and to control stressed engagement device automatically be purpose.
In order to achieve the above object, the engagement device of the 1st embodiment of the present invention is: have a movable electrode in a plurality of electrodes at least, and have movable electrode is made the movable electrode mobile device of contact departure motion and can be detected setting plus-pressure detecting sensor when reaching setting by movable electrode institute plus-pressure with respect to being engaged part, apply the stressed while of regulation for the junction that is engaged part by movable electrode, supplying with electric current by the junction between movable electrode and other electrodes engages and it is characterized in that having for driving the drive unit of movable electrode mobile device, send the operating means of indication drive unit actuating signal and the control part of each position action control of management.Control part is based on from setting the signal that plus-pressure detecting sensor and operating means send, control is used to drive the action that the movable electrode mobile device moves, movable electrode is left be engaged the junction of part to be got back to and preserve the position, make movable electrode abut against bonding station in the junction that is engaged part with applying the regulation plus-pressure, make movable electrode to the way that bonding station moves, before the arrival bonding station, implement to stop temporarily and stop respectively from preserving the position, simultaneously, based at least from the stressed detection signal of the movable electrode of setting the plus-pressure detecting sensor at bonding station, the position that can change movable electrode automatically.Adopt this structure,, can control the position of movable electrode automatically based on from setting the signal that plus-pressure detecting sensor and operating means send, so, plus-pressure can easily, reliably fine be controlled.
Also have, the engagement device of the present invention the 2nd embodiment, has movable electrode, make movable electrode and make the movable electrode mobile device of contact departure motion and can detect setting plus-pressure detecting sensor when reaching setting by movable electrode institute plus-pressure with respect to being engaged part, apply the stressed while of regulation for the junction that is engaged part by movable electrode, the heating movable electrode engages, it is characterized in that, have for driving the drive unit of movable electrode mobile device, send the operating means of indication drive unit actuating signal and the control part of each position action control of management, control part is based on from setting the signal that plus-pressure detecting sensor and operating means send, control is used to drive the action that the movable electrode mobile device moves, the preservation position that movable electrode is left be engaged the junction of part to be got back to, make movable electrode abut against bonding station in the junction that is engaged part with applying the regulation plus-pressure, make movable electrode to the way that bonding station moves, before the arrival bonding station, implement to stop temporarily and stop respectively from preserving the position, simultaneously, based at least from the stressed detection signal of the movable electrode of setting the plus-pressure detecting sensor at bonding station, the position that can change movable electrode automatically.Adopt this structure,, can control the position of movable electrode automatically based on from setting the signal that plus-pressure detecting sensor and operating means send, so, plus-pressure can easily, reliably fine be controlled.
Also have, the feature of the engagement device of the present invention the 3rd embodiment is: in the 1st or the 2nd embodiment, operating means is 2 segmentation floor push, and control part is can utilize 1 grade of 2 segmentation floor push to trample operation movable electrode is moved to interim stop position and utilizes 2 grades to trample operation movable electrode is moved to the such formation of bonding station from interim stop position from position of readiness.Owing to adopt such formation, movable electrode can be remained on interim stop position, so, can be by the junction surface bit position relation of Visual Confirmation electrode and parts.
Also have, the feature of the engagement device of the present invention the 4th embodiment is: any example in the 1st to the 3rd embodiment, drive unit is a motor.Owing to adopt such structure, can easily drive the movable electrode mobile device.
Description of drawings
Fig. 1 represents the front view at the main position of engagement device the 1st embodiment holding state of the present invention;
The time diagram of Fig. 2 presentation graphs 1 engagement device action;
Fig. 3 is an interim halted state of using figure presentation graphs 1 engagement device identical with Fig. 1;
Fig. 4 is a contact condition of using the engagement device of the figure presentation graphs 1 identical with Fig. 1;
Fig. 5 is a welding initial state of using figure presentation graphs 1 engagement device identical with Fig. 1;
Fig. 6 is the welding midvoyage condition that uses figure presentation graphs 1 engagement device identical with Fig. 1;
Fig. 7 represents the front view at main position of the interim halted state of bonding station the 2nd embodiment of the present invention;
Fig. 8 is illustrated in the front view at main position of the interim halted state of bonding station the 3rd embodiment of the present invention;
The front view of an example of Fig. 9 presentation graphs 7 engagement device electrode tips;
Figure 10 represents the front view as the main position of the welder of existing engagement device;
Figure 11 represents the time diagram of Figure 10 welder action.
The specific embodiment
Below the embodiment that represents with accompanying drawing the present invention is described, also have, the structure the same with above-mentioned existing apparatus is designated as prosign in drawing.
Fig. 1 is the 1st embodiment of expression engagement device of the present invention, the engagement device of present embodiment is fine to control low plus-pressure easily and reliably, the device that the junction surface of workpiece W as the smallclothes parts that are engaged part is engaged, and with one in 2 electrodes as fixed electrode, another is as the welder of movable electrode.
As the welder 31 of present embodiment engagement device, as shown in Figure 1, have operating desk 2 (only illustrating a part among Fig. 1) and be arranged on this electrode supporting platform 33 above operating desk 2.This welder 31, the right side in Fig. 1, when carrying out welding operation, with the operator over against be called face side FS, the left side in Fig. 1, the position of the reverse side relative with face side FS is called rear side BS.
Above-mentioned electrode supporting platform 33 is by being installed in the support portion 33b that workbench installation position 33a above the operating desk 2, the end of rear side BS above the 33a of this workbench installation position uprightly are provided with upward, and from the beginning the face side of relative Fig. 1 of forming of the motor mounting part 33c that extends out to face side FS of the upper end-face edge of support portion 33b roughly is the electrode supporting platform of anti-コ font.
The basic part 4a of fixed electrode anchor clamps 4 is fastened on above the face side end of above-mentioned workbench installation position 33a, makes bar-shaped fixed electrode 5 and can be fastened on the face side end of fixed electrode anchor clamps 4 along its point upward with loading and unloading.
On the face side FS position of above-mentioned support zone 33b (right flank in Fig. 1), towards above-below direction, rail plate 6 is fastened at its length direction, and slide plate 7 can be supported on this rail plate 6 movably along this rail plate 6.
On above-mentioned motor mounting part position 33c, be installed with as the drive motors that drives the described movable electrode mobile device 40 in back, specifically, be that servomotor 41 has been installed.This servomotor 41 has the output shaft 41a that can advance and retreat, and the front end of this output shaft 41a passes motor mounting part 33c at above-below direction, and stretches out to the below of motor mounting part position 33c.Also have, servomotor 41 is connected electrically on the control part 42, and controlling output shaft 41a at the appointed time according to the control instruction of sending from control part 42 can move up and down.
In addition, as drive unit, electrical equipment drive or compressed air-driven can, and the output shaft that moves back and forth the transmission device etc. of usefulness is to move back and forth, or rotation is done the rotation driving with the output shaft of transmission device etc. and also can.Adopting the rotation transmission device, make the occasion of the rotation of rotation driving as output shafts such as stepper motors with transmission device, be by rotatablely moving of screw rod etc. is transformed to straight-line straight-moving mechanism, make output shaft in the reciprocating structure of axial direction, employing can become straight-line straight-moving mechanism with rotatablely moving of screw rod etc., constitutes to make output shaft that rotation drives and the syndeton between the plumb joint 8 also can.
The left side wall 8L that forms the plumb joint 8 of anti-コ font is fixed on the side of face side of above-mentioned slide plate 7.The front end of the output shaft 41a of above-mentioned servomotor 41 is fixed on the top rear side BS of upper wall 8U of this plumb joint 8.Therefore, by driving servomotor 41, plumb joint 8 can be moved back and forth at above-below direction.
The movable electrode fixture support axle 9L of pair of right and left, 9R connect at above-below direction by sliding bearing 10 and move back and forth on the lower wall 8D that freely is supported on above-mentioned plumb joint 8.These movable electrode fixture support axles 9L, 9R by between front and back across setting, the basic part 11a of movable electrode anchor clamps 11 is fixed on respectively on the lower end part of the above-mentioned back shaft 9L, the 9R that stretch out from the below of plumb joint 8 with bridge connected, on the face side end of these movable electrode anchor clamps 11, fixing and be made into bar-shaped movable electrode 12, detachable along its pointed end direction, and the aligning of the tip of it is most advanced and sophisticated and said fixing electrode 5.
The movable electrode fixture support axle 9L of rear side BS is shorter, its upper end is in the inboard of plumb joint 8, specifically be outstanding between upper wall 8U in Fig. 1 of plumb joint 8 and the lower wall 8D, and the movable electrode fixture support axle 9R of face side FS is longer, its upper end is above plumb joint 8, specifically be outstanding from the top perforation of plumb joint 8 upper wall 8U, and, the mid portion of the movable electrode fixture support axle 9R of the upper surface of the movable electrode fixture support axle 9L of rear side BS and the face side FS of its sustained height adopts connecting plate 13 to interconnect.
Also have,, on the periphery of back shaft 9R, the pressing spring 14 that is formed by compression helical spring is housed in the top position of the connecting plate 13 of the movable electrode fixture support axle 9R of face side FS.This pressing spring 14 applies the plus-pressure of regulation when microswitch 15 is opened, adjust its length with adjusting knob 50, make it to remain between connecting plate 13 and the spring holding member 51, and 2 movable electrode fixture support axles 9 (symbol 9 is movable electrode fixture support axle 9L of pair of right and left, the general name of 9R) being moved upward of phase butt joint 8, during rising, its axial length is shunk, from producing the spring compression stress, obtain plus-pressure by this compression stress.
The middle part that sets the position of 2 movable electrode fixture support axles 9 on the lower wall 8D of above-mentioned plumb joint 8 is provided with microswitch 15 as setting the plus-pressure detecting sensor, to detect the moment that plus-pressure reaches setting.This microswitch 15 is connected electrically on the control part 42, be connected 2 movable electrode fixture support axle 9L, movable electrode 12 on the 9R becomes the state that docks by the workpiece W that is used for attachment with fixed electrode 5, be that movable electrode 12 remains on junction to workpiece W and applies in the state on the stressed bonding station of regulation, rising by connecting plate 13, being connected connecting plate 13 following contact shoe 15a leaves from connecting plate 13, therefore, the axial length that detects pressing spring 14 is shunk the moment that the plus-pressure that is produced reaches setting, just this detection signal can be sent to control part 42.
In addition, not to be limited in the contact microswitch 15 as setting the plus-pressure detecting sensor, the contactless detecting sensor near switch, optical sensor etc. is also passable.
Utilization is arranged on rail plate 6, slide plate 7 and the plumb joint 8 on the above-mentioned electrode supporting platform 33, constitutes the movable electrode mobile device 40 make the action that movable electrode 12 contacts and leave with fixed electrode 5 relatively.
The control part 42 of present embodiment is equipped with CPU and by the form memory of ROM, the RAM etc. of capacity suitable, and is used for the I/O interface (not illustrating in the drawings respectively) that is connected with each position of welder 31.The source of welding current and the operating desk of expression all are not connected electrically on the control part 42 and among microswitch 15, servomotor 41,2 segmentation floor push 43, control power supply 44, the figure.And the connection that is used to control power supply 44 closes switch, be used for that interim stop position is set and the touch dish of various expressions etc. etc. is arranged on operating desk.
Above-mentioned 2 segmentation floor push 43 have the function of sending indication servomotor 41 actuating signals as operating means.
In the memory of above-mentioned control part 42, according to from as the microswitch 15 of setting the plus-pressure detecting sensor and the signal that sends as 2 segmentation floor push 43 of operating means, get back to preservation position to making movable electrode 12 leave fixed electrode 5 as ultimate range, make movable electrode 12 abut against bonding station in the junction of workpiece W with applying the regulation plus-pressure, movable electrode is controlled in the action of the servomotor 41 of the driving movable electrode mobile device of implementing to stop from the preservation position arrives bonding station to the way that bonding station moves before 40 temporarily, at least according to the signal that 12 pairs of bonding stations of movable electrode are exerted pressure that detects that sends from microswitch 15, can automatically change the storage program in above-mentioned control part 42 simultaneously about the bonding station of movable electrode 12.And, in the memory of control part 42, be provided with and movable electrode can be moved to interim stop position and to utilize 2 grades to trample operation and above-mentioned movable electrode 12 can be moved to the program that the action of the servomotor 41 of bonding station is controlled from interim stop position from position of readiness utilizing 1 grade of 2 segmentation floor push 43 to trample operation.
In addition, in two electrodes 5,12, connect the source of welding current of not representing among the figure,, connect welding current through behind the extrusion time according to the welding initiating signal that sends from control part 42.This extrusion time will be set according to the source of welding current.
Also have, in the welder 31 of present embodiment, also can be with being to detect the preservation position-detection sensor that the preservation position of movable electrode 12 is provided with.Owing to this preservation position-detection sensor is set,, can detects the top dead centre that movable electrode 12 is a plumb joint 8 reliably according to from preserving the signal that position-detection sensor detects.When return action, the position of plumb joint 8 can be stopped on certain position automatically reliably.
Also have, also can make and trample 2 segmentations and trample the corresponding velocity response type device that can send 2 different ON signals of the speed of trampling of switch 43, like this under the situation of trampling fast, can improve the actuating speed of servomotor 41 fast, under the situation of trampling at a slow speed, can slow down the actuating speed of servomotor 41.
Also have,, can make needs, the moving direction of movable electrode 12 is arranged to any direction as horizontal direction etc. according to design concept etc. as the configuration of fixed electrode 5 and movable electrode 12.
Also have, the structure that designs interim stop position sensor is also passable.At this moment, as operating means, can adopt and simply trample switch.
Also have, the number of fixed electrode 5 or movable electrode 12 is made also passable more than 2.
Below, the effect of the present embodiment of said structure is illustrated.
Fig. 1 represents the holding state before the welder 31 of present embodiment welds, in this holding state, Fig. 2 was illustrated in the T00 of time diagram before the moment, and as 2 not operations of segmentation floor push 43 of operating means, 2 segmentation floor push 43 are at the OFF state.Also have, be not driven in origin position as the servomotor 41 of drive unit, plumb joint 8 remains on top dead centre.And movable electrode 12 remains on the preservation position (being designated as initial point in Fig. 2) apart from the ultimate range of fixed electrode 5.Also have, pressing spring 14 is utilized and is adjusted the length that knob (screw) 50 is adjusted to regulation, remains between connecting plate 13 and the spring holding member 51.Also have, according to from sending signal as the microswitch 15 of setting the plus-pressure detecting sensor and as 2 segmentation floor push 43 of operating means, control part 42 judge movable electrodes 12 leave fixed electrode 5 get back to the preservation position of ultimate range, and the welding current of the control welding initiating signal and the source of welding current be in the OFF state.
And, the welding action of the welder 31 of present embodiment, the workpiece W stack that will be used for components bonding is placed on the most advanced and sophisticated state of fixed electrode 5, tramples 2 segmentation floor push 43 and carries out one-level ON operation, just begins to weld action (T00 is constantly).
Below, moving at the beginning (T00 is after the moment) when welding, control part 42 sends the instruction that drives servomotor 41, and the output shaft 41a of servomotor 41 stretches out downwards, and plumb joint 8 moves downwards from position shown in Figure 1.At this moment, fixedly the slide plate 7 of plumb joint 8 moves downwards along rail plate 6, and the motion track of plumb joint 8 is controlled the tip with the most advanced and sophisticated secured in alignment electrode 5 of movable electrode 12 reliably.And, utilizing moving of plumb joint 8 downwards, move from the pointed end side that the preservation position (being designated as initial point in Fig. 2) that is expressed as initial point among Fig. 1 faces toward fixed electrode 5 at the tip of movable electrode 12 (being designated as electrode among Fig. 2).And servomotor 41 is because movable electrode 12 from preserving the position to the way that bonding station moves, stops (T01) at the interim stop position that is provided with previously (being designated as desired location among Fig. 2) of preserving the position with the decline of plumb joint 8 temporarily.
Keeping plumb joint 8 at this interim stop position, specifically is movable electrode 12, can be easily by the position relation at Visual Confirmation electrode 12 and part junction surface and the state of workpiece W at this.At this moment, if the location dislocation of workpiece W can be revised dislocation, so can eliminate the situation of failure welding.The interim halted state that the movable electrode 12 of this welder 31 is remained on interim stop position as shown in Figure 3.
Below, carry out 2 grades ON operation (during T02) by trampling 2 segmentation floor push 43, control part 42 sends the instruction that drives servomotor 41, the output shaft 41a of servomotor 41 stretches out downwards more longways, plumb joint 8 moves down from interim stop position shown in Figure 3 again, and in the junction of workpiece W (being designated as surface of the work in Fig. 2) butt joint, movable electrode 12 arrives its most advanced and sophisticated docking location that is abutted against with surface of the work (T03 constantly) from initial point.At this moment, the spring length that pressing spring 14 is adjusted by adjustment knob 50 keeps former length not to be compressed, and becomes so-called relaxed state.The contact condition that be abutted against at the movable electrode 12 of this welder 31 and the junction surface of workpiece W as shown in Figure 4.
Secondly, movable electrode 12 still continues to move (T03-T04 constantly) to the below of plumb joint 8 after arriving docking location, because the state that be abutted against at the tip of maintenance movable electrode 12 and the junction surface of workpiece W, so further drive by servomotor 41, movable electrode 12 is motionless states, has only plumb joint 8 to descend.Therefore, movable electrode 12 is relative approaching with plumb joint 8.At this moment, with respect to plumb joint 8, movable electrode fixture support axle 9 relatively moves upward, and the connecting plate 13 that is fixed on the movable electrode fixture support axle 9 moves to the direction of the contact shoe 15a that leaves microswitch 15.By moving of this connecting plate 13, pressing spring 14 is axially shunk, thereby pressing spring 14 is compressed.And, the compression stress of pressing spring 14 reaches prescribed level, reach the moment (T04 constantly) of required compression in its compression, the contact shoe 15a of microswitch 15 leaves the action of connecting plate 13, send the ON signal to control part 42 by microswitch 15, this ON signal is that pressing spring 14 reaches required compression and produces the stressed detection signal of regulation.And, receive the control part 42 of the ON signal of the plus-pressure detection signal that sends by microswitch 15, send the instruction that stops to drive servomotor 41, make plumb joint 8 remain on lower dead center.As shown in Figure 5, the movable electrode 12 of this welder 31 utilizes the plus-pressure of regulation to abut against the state that keeps this bonding station with workpiece W junction to begin to weld.
Also have, control part 42 is by at least according to the plus-pressure detection signal that sends from microswitch 15, the structure that just can judge the bonding station of movable electrode 12 constitutes, so according to the workpiece W kind that is used for components bonding, situation changing junction thickness also can normally accurately detect bonding station.Therefore, according to the kind of the workpiece W that is used for attachment,,, also can realize changing automatically the bonding station of movable electrode 12 according to the plus-pressure detection signal that microswitch 15 sends even change the thickness of junction.
When plumb joint 8 arrives lower dead center, the plus-pressure that applies regulation owing to movable electrode 12 in the junction of workpiece W is in the state that is abutted against, and the control part 42 that receives the plus-pressure detection signal ON signal that is sent by microswitch 15 sends welding initiating signal (T05 constantly).And, sending welding initiating signal (constantly) to T05-T08, the extrusion time that process is set by the source of welding current (T06 is constantly) is just connected welding current energising (T06-T07 is constantly) afterwards between two electrodes 5,12, carry out the joint of workpiece W.Also have, one connects welding current, and the junction of workpiece W is with regard to fusion, because the stressed pushing of pressing spring 14, the position of movable electrode 14 just drops to melts the into degree of depth of surface of the work (T06-T09 constantly).The welding of this welder 31 state midway as shown in Figure 6.
And when the joint of workpiece W welding position finishes (T09 constantly), owing to withdraw from pin from 2 segmentation floor push 43, original state (T10 constantly) is recovered at each position, and 1 cycle of welding action (T00-T10 constantly) finishes.
Also have, cross interim stop position, return to and preserve (microswitch 15 is in after the T09 of OFF state) before the position, utilize 1 grade of ON operation carrying out 2 segmentation floor push 43, can carry out the bonding operation of next workpiece W at movable electrode 12.Thus, can forcibly shorten the required circulation timei of joint of a workpiece W.
Like this, utilize the welder 31 of present embodiment,, can control the position of movable electrode 12 automatically, therefore, can easily, reliably and fine control plus-pressure automatically according to the signal that sends by microswitch 15 and 2 segmentation floor push 43.Its result can often keep the bond quality of workpiece W not have substandard products preferably.
Also have, utilize 2 segmentation floor push 43 of the welder 31 of present embodiment, owing to can easily movable electrode 12 be remained on interim stop position, the junction surface bit position relation of electrode 5,12 and workpiece can be confirmed by visual.Its result, owing to can prevent the dislocation of workpiece W, so can easily accomplish to eliminate the failure welding phenomenon.
Also have, the motor of the welder 31 of present embodiment specifically is to adopt servomotor 41, and this just can easily drive movable electrode mobile device 40.
The 2nd embodiment of engagement device of the present invention as shown in Figure 7.The engagement device of present embodiment can be easily and also reliably, the low plus-pressure of control fine, be suitable for engaging, and be the welder of 2 electrodes as movable electrode 12 as the workpiece W junction that is engaged the smallclothes part of part.In welder 31A as the engagement device of present embodiment, face side end on the 33a of the workbench installation position of electrode supporting platform 33A replaces the outstanding upward workpiece support platform 33d that is provided with of fixed electrode anchor clamps 4 of the welder 31 of above-mentioned the 1st embodiment, utilize this workpiece support platform 33d above, workpiece W from supported underneath.Also have, on the face side end of movable electrode anchor clamps 11A, will be made into 2 bar-shaped movable electrodes 12 (in Fig. 7, only illustrating) as electrode on the opposite of above-mentioned workpiece support platform 33d its pointed end can fixed with loading and unloading.Promptly on the face side end of the movable electrode anchor clamps 11A of present embodiment, 2 movable electrodes making pair of right and left 12 of seeing from face side FS by at certain intervals, queuing configuration in parallel to each other.
For other structure, owing to make the device identical with the welder 31 of above-mentioned the 1st embodiment, so omit its detailed explanation.Also have, also the welder 31 with above-mentioned the 1st embodiment is identical to utilize the welder action that 31A welds of present embodiment, so omit its detailed description.
According to welder 31A as the engagement device of the present embodiment of this structure, can obtain the effect same with the welder 31 of above-mentioned the 1st embodiment, promptly according to from as the microswitch 15 of setting the plus-pressure detecting sensor and the signal that sends as 2 segmentation floor push 43 of operating means, can control the position of movable electrode 12 automatically, therefore, can be easily and reliably, fine control plus-pressure automatically.
Fig. 8 and Fig. 9 represent the 3rd embodiment of engagement device of the present invention.The engagement device of present embodiment is an example of expression soft soldering apparatus, promptly by the heated by electrodes head as movable electrode, the soft soldering apparatus that welds in the junction of workpiece W.In soft soldering apparatus 31B as the present embodiment engagement device, on the face side end on the 33a of the workbench installation position of electrode supporting platform 33B, the outstanding upward workpiece support platform 33d that is provided with of fixed electrode anchor clamps 4 that replaces the welder 31 of above-mentioned the 1st embodiment, utilize this workpiece support platform 33d above, workpiece W from supported underneath.Also have, on the face side end of movable electrode anchor clamps 11B, will releasably fix downwards facing to above-mentioned workpiece support platform 33d as the tip of electrode tip (heating plate) 12B of movable electrode.This electrode tip 12B uses and can select to use required electrode tip according to the size of junction or shape etc. facing to the junction (do not have diagram) of the workpiece W that is engaged part.Also have, as electrode tip 12B, as shown in Figure 9, from face side, its top utilizes slit or insulating materials to divide right and left, and on top separately, adopts by the supply unit of not representing among the figure usually and supplies with electric current.
For other structure, because the device identical with the welder 31 of above-mentioned the 1st embodiment, so omit its detailed explanation.Also have, for the solder action of the welder that utilizes present embodiment, also the welder 31 with above-mentioned the 1st embodiment is big to identical, so omit its detailed description.
Employing is as the soft soldering apparatus 31B of the present embodiment engagement device of this structure, can obtain the effect same with the welder 31 of above-mentioned the 1st embodiment, promptly according to from as the microswitch 15 of setting the plus-pressure detecting sensor and the signal that sends as 2 segmentation floor push 43 of operating means, can control position automatically as the electrode tip 12B of movable electrode, therefore, can be easily and reliably, fine control plus-pressure automatically.
Also have, the present invention is not limited to the various embodiments described above, and, availablely do various changes as required, for example, interim stop position is not limited to a position, it is also passable that a plurality of positions are set, and after for example stopping for 2 times temporarily, movable electrode moved to bonding station also be fine.Also have, adopt the seam welding of rotation (wheel) electrode also to go for the present invention.
Adopt described engagement device of the present invention, can obtain not only can be easy, reliable, trickle but also can automatically control the extremely excellent effect of plus-pressure etc.
Claims (4)
1. engagement device, in a plurality of electrodes, have at least one to be movable electrode, have above-mentioned movable electrode is made the movable electrode mobile device of contact departure motion and can be detected setting plus-pressure detecting sensor when reaching setting by above-mentioned movable electrode institute plus-pressure with respect to being engaged part, apply the stressed while of regulation for the above-mentioned junction that is engaged part by above-mentioned movable electrode, engage by above-mentioned junction turn-on current between above-mentioned movable electrode and other electrodes, it is characterized in that: have for driving the drive unit of above-mentioned movable electrode mobile device, send the operating means of the above-mentioned drive unit actuating signal of indication and the control part of each action control of management, above-mentioned control part is according to the signal that sends from above-mentioned setting plus-pressure detecting sensor and aforesaid operations device, control is used to drive the action that above-mentioned movable electrode mobile device moves, make above-mentioned movable electrode leave the above-mentioned junction that is engaged part and get back to the preservation position, make above-mentioned movable electrode abut against bonding station in the above-mentioned junction that is engaged part with applying the regulation plus-pressure, make above-mentioned movable electrode to the way that bonding station moves, before the arrival bonding station, implement to stop temporarily and stop respectively from preserving the position, simultaneously, according at least from the stressed detection signal of the movable electrode of setting the plus-pressure detecting sensor at bonding station, the position that can change movable electrode automatically.
2. engagement device, has movable electrode, make above-mentioned movable electrode and make the movable electrode mobile device of contact departure motion and can detect setting plus-pressure detecting sensor when reaching setting by above-mentioned movable electrode institute plus-pressure with respect to being engaged part, apply the regulation plus-pressure by above-mentioned movable electrode and give the above-mentioned junction while that is engaged part, heating above-mentioned movable electrode engages, it is characterized in that: have for driving the drive unit of above-mentioned movable electrode mobile device, send the operating means of the above-mentioned drive unit actuating signal of indication and the control part of each action control of management, above-mentioned control part is according to the signal that sends from above-mentioned setting plus-pressure detecting sensor and aforesaid operations device, control is used to drive the action that above-mentioned movable electrode mobile device moves, make above-mentioned movable electrode leave the above-mentioned junction that is engaged part and get back to the preservation position, make above-mentioned movable electrode apply in the above-mentioned junction that is engaged part regulation plus-pressure abut against bonding station, make above-mentioned movable electrode to the way that bonding station moves, before the arrival bonding station, implement to stop temporarily and stop respectively from preserving the position, simultaneously, according at least from the stressed detection signal of the movable electrode of setting the plus-pressure detecting sensor at bonding station, the position that can change movable electrode automatically.
3. according to claim 1 or the described engagement device of claim 2, it is characterized in that: the aforesaid operations device is 2 segmentation floor push, and above-mentioned control part is can utilize 1 grade of above-mentioned 2 segmentation floor push to trample operation above-mentioned movable electrode is moved to interim stop position and utilizes 2 grades to trample operation above-mentioned movable electrode is moved to bonding station from interim stop position from position of readiness.
4. according to claim 1 any one described engagement device to the claim 3, it is characterized in that: above-mentioned drive unit is a motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002006627 | 2002-01-15 | ||
| JP2002006627A JP2003205371A (en) | 2002-01-15 | 2002-01-15 | Joining device |
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| Publication Number | Publication Date |
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| CN1432447A true CN1432447A (en) | 2003-07-30 |
| CN1273257C CN1273257C (en) | 2006-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03100635 Expired - Fee Related CN1273257C (en) | 2002-01-15 | 2003-01-15 | Jointer |
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| JP (1) | JP2003205371A (en) |
| CN (1) | CN1273257C (en) |
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| CN101804539B (en) * | 2004-12-29 | 2011-12-14 | 斯蒂沃控股有限公司 | Installation for producing and method for assembling parts |
| CN102689088A (en) * | 2011-03-24 | 2012-09-26 | 富士重工业株式会社 | Spot welding apparatus and spot welding method |
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Also Published As
| Publication number | Publication date |
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| JP2003205371A (en) | 2003-07-22 |
| CN1273257C (en) | 2006-09-06 |
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