CN202162489U - Copper-aluminum column resistance welding machine - Google Patents
Copper-aluminum column resistance welding machine Download PDFInfo
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- CN202162489U CN202162489U CN2011201975710U CN201120197571U CN202162489U CN 202162489 U CN202162489 U CN 202162489U CN 2011201975710 U CN2011201975710 U CN 2011201975710U CN 201120197571 U CN201120197571 U CN 201120197571U CN 202162489 U CN202162489 U CN 202162489U
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Abstract
Provided is a copper-aluminum column resistance welding machine, which is used for welding a copper-aluminum column onto an electrode substrate. A welding power source is provided by a medium-frequency inversion circuit that is formed by parallel connection of multiple medium/high-frequency transformers. The welding power source is connected with an upper electrode and a lower electrode, respectively. The lower electrode passes by a conductive electrode holder and a tapered holding electrode, and then together with the upper electrode forms a welding loop through the copper-aluminum column and the electrode substrate. The resistance welding machine of the utility model can satisfy the welding requirement of large current output, and is capable of full-automatic welding of to-be-welded workpieces under the condition that the to-be-welded workpieces are precisely positioned, held and applied, thereby guaranteeing the precise and reliable welding quality.
Description
Technical field
The utility model relates to a kind of resistance welder, particularly a kind of copper aluminium post special resistors welding machine.
Background technology
Products such as the digital camera of the big capacity electricity consumption of the big electric current of need at present, video camera, mobile phone, notebook computer, electronic toy, electric automobile incorporate in the modern life fast; Along with people's is to the expansion day by day of green energy resource demand; And the exhaustion day by day of existing electrode material resource, it is particularly urgent and most important that the new energy and the research of method thereof seem.Good performances such as its core drive need have safety, stability is high, specific capacity is high, environmental protection, low price; Also must have simultaneously good conductivity, the density of shaking advantages of higher; And the wherein research and development of the precision welding connection technology between electrode base sheet and the copper aluminium post help further to improve reliability of products, reduce production costs.
Shown in figure 13; Said electrode base sheet 7 cross sections can be U type, C type or E type etc.; Supply copper aluminium post 6 affixed but all have a bottom basal plane, its material is copper or aluminum or aluminum alloy, and said copper aluminium post 6 has more than two or two; Be copper, aluminium, aluminium alloy or copper aluminium complex material, be fixed on the bottom surface of same electrode base sheet 7.According to the shape and the material characteristic of the key components and parts of this series products, as adopting means such as casting, forging or machined both are fixed, the production of products cost can significantly increase so, and can't realize the processing of copper aluminum bronze aluminium post 6.As adopt welding method, then need the workpiece welding position be heated to mecystasis, to form nugget, because the shape and the material characteristic of copper aluminium post 6 and electrode base sheet 7 need bigger welding current during welding; On the other hand,, can cause the surface of the work oxidation, cause welding quality unstable if weldment or welding finished product are used the staff taking and placing.Because staff can be perspired, people's sweat is that a kind of water white transparency or the faint yellow saline taste that has are weakly acidic liquid, and its pH value is 5～6, except that containing sodium, potassium, calcium, magnesium salts, also contains organic acids such as a small amount of urea, lactic acid, citric acid.When sweat and Metal Contact, can form one deck sweat film in the metal surface, the sweat film can cause electrochemical action to metal, corroding metal; Need very big heat during welding, the postwelding workpiece still has bigger heat, can damage the operator, if utilize instrument to pick and place, can influence welding efficiency again.
The utility model content
The technical problem that the utility model will solve provides a kind of can providing and welds big electric current, the copper aluminium columnar resistance welding machine that welding process is full-automatic.
The utility model adopts following technical scheme: design a kind of copper aluminium columnar resistance welding machine, be used for copper aluminium post is soldered to an electrode base sheet
,Comprise: weldment and welding finished product feeding transmission mechanism, welding mechanism, the source of welding current and welding control system; It is characterized in that: the medium frequency inverter circuit that the said source of welding current is made up of a plurality of medium-high frequency transformers connected in parallel provides; The said source of welding current Connect Power the respectively utmost point and bottom electrode; Said bottom electrode is held electrode tightly through conductive electrode seat and tapering, again through copper aluminium post and electrode base sheet and top electrode formation welding circuit.
Said welding control system comprises:
Human-computer interaction interface is used for the status information of importing welding parameter and showing the welding machine welding process to system according to the material behavior and the size of copper aluminium post to be welded and electrode base sheet;
State detection unit; Comprise the pressure sensor that is installed on the said welding mechanism and be installed in a plurality of position sensors on the said weldment feeding transmission mechanism, be used for detecting the pressure state information of said copper aluminium post and the welding end surface of electrode base sheet between the residing location status information of said weldment feeding transmission mechanism and said copper aluminium post and electrode base sheet;
The intermediate frequency welding controller is used to control said a plurality of medium-high frequency transformer and adds the discharge time and the welding current of electric welding for said electrode base sheet and copper aluminium post;
Programmable logic controller (PLC), the status information that is used for exporting according to the welding parameter of said human-computer interaction interface output and state detection unit is sent operational order to said weldment feeding transmission mechanism and each manipulator of welding mechanism and said intermediate frequency welding controller.
Said human-computer interaction interface is a touch display screen, and the welding parameter of importing through human-computer interaction interface comprises: diameter, pressure parameter, weld interval and the welding current of said copper aluminium post.
The pressure sensor of said state detection unit is installed in bottom electrode and drives on the cylinder power output precision, and said a plurality of position sensors are installed in weldment respectively and get the appropriate location on material station and the welding post.
It is 80ms～250ms that said intermediate frequency welding controller is controlled the weld interval that said a plurality of medium-high frequency transformer adds electric welding for said electrode base sheet and copper aluminium post, and welding current is 50KA～150KA.
Said welding mechanism comprises welding tooling assembly, top electrode and bottom electrode and drives said top electrode and top electrode that bottom electrode moves up and down drives cylinder and bottom electrode drives cylinder that said conductive electrode seat and tapering are held electrode tightly and be installed in movably in the welding tooling assembly.
Said weldment and welding finished product feeding transmission mechanism comprise: copper aluminium post pay-off, electrode base board pay-off and welding finished product device for discharging, said copper aluminium post pay-off, electrode base board pay-off and welding finished product device for discharging are provided with the action that independently drives transmitting device and their manipulator mechanism unit separately and all receive said PLC controls.
A plurality of medium-high frequency transformers of the pedestal of said welding tooling assembly, conductive electrode seat and the formation source of welding current are provided with the cooling water circulation canal that is used to reduce operating temperature.
The copper aluminium columnar resistance welding machine of the utility model can realize satisfying the big electric current output of welding requirements, and the whole automations of welding process, can guarantee the accurate and reliable welding quality.
Description of drawings
Fig. 1 is the overall structure sketch map that the related copper aluminium of the utility model columnar resistance welding machine is seen from the front;
Fig. 2 is the overall structure sketch map that the related copper aluminium of the utility model columnar resistance welding machine is seen from the side;
Fig. 3 is the copper aluminium post conveying of the related welding machine of the utility model and the structural representation of clamping device 1;
Fig. 4 is the electrode base board conveying of the related welding machine of the utility model and the structural representation of take out device;
Fig. 5 is the structural representation of the welding finished product device for discharging 4 of the related welding machine of the utility model;
Fig. 6 is the enlarged drawing of welding tooling assembly 300 parts of the related welding machine of the utility model;
Fig. 7 is the cross-sectional view of said welding tooling assembly 300;
Fig. 8 is the structural representation of said welding tooling assembly 300;
Fig. 9 is the structural representation after said welding tooling assembly 300 removes substrate 312 and clamping plate 313;
Figure 10 is that figure cuts open in the office of said conductive electrode seat 321 and copper aluminium post installing hole 328 inner structures thereof;
Figure 11 is that said tapering is held the structural representation that electrode 323 is seen from oblique upper tightly;
Figure 12 is that said tapering is held the structural representation that electrode 323 is seen from the bottom tightly;
Figure 13 is the structural representation that said electrode base sheet 7 and copper aluminium post 6 weld together;
Figure 14 is the structural representation of said top electrode 301 and top power set 302 thereof;
Figure 15 is the structural representation of said bottom electrode 351 and its underpart power set 352;
Figure 16 is the main circuit diagram of the utility model copper aluminium columnar resistance welding machine;
Figure 17 is the utility model copper aluminium columnar resistance welding machine Fundamentals of Welding sketch mapes;
Figure 18 is the utility model copper aluminium columnar resistance welding machine welding process figure;
Figure 19 is the utility model copper aluminium columnar resistance welding machine welding control principle sketch map;
Figure 20 is fit to the top electrode 301 of E shape electrode base board and the structural representation of top power set 302 thereof;
Figure 21 is the partial enlarged drawing of the top electrode 301 among Figure 20.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is done further explain below in conjunction with accompanying drawing and embodiment.
Shown in figure 13, the related copper aluminium columnar resistance welding machine of the utility model is specifically designed to the copper aluminium post 6 more than two or two is welded on the bottom surface of an electrode base sheet 7.Said copper aluminium post 6 is copper, aluminium, aluminium alloy or copper aluminum composite material etc.; The material of said electrode base sheet 7 can adopt copper, aluminum or aluminum alloy etc.; No matter its cross section can be U type, C type, E type etc., but what shape, and the equal tool in its bottom surface is one to be used for the plane of soldering copper aluminium post 6.In the present embodiment, the electrode base sheet 7 that is welded to a U type cross section with two copper aluminium posts 6 is that example is elaborated to the utility model.
The copper aluminium columnar resistance welding machine of the utility model comprises: weldment and welding finished product feeding transmission mechanism, welding mechanism, the source of welding current and welding control system.Like Figure 16 and shown in Figure 17, the medium frequency inverter circuit that the source of welding current of the utility model is made up of a plurality of medium-high frequency transformers connected in parallel provides, the said source of welding current Connect Power the respectively utmost point 301 and bottom electrode group 35.
As depicted in figs. 1 and 2; Said welding mechanism and weldment and welding finished product feeding transmission mechanism are installed on the frame 10; This weldment and welding finished product feeding transmission mechanism comprise: copper aluminium post pay-off 1, electrode base board pay-off 2 and welding finished product device for discharging 4, said copper aluminium post pay-off 1, electrode base board pay-off 2 and welding finished product device for discharging 4 are provided with the action that independently drives transmitting device and their manipulator mechanism unit separately and all receive said programmable logic controller (PLC) 53 controls.
Said copper aluminium post pay-off 1 is used for that copper aluminium post 6 is in batches put into copper aluminium post and selects materials dish 101 backs automatically by specifying requirement to be arranged in two fixing row, controllably is delivered to then on the copper aluminium post station to be welded of welding machine, and its structure is as shown in figures 1 and 3; Comprise: copper aluminium post is selected materials automatically and is coiled 101; Transport, jaw 109, gas pawl 108; Control the piston component 103 that said gas pawl 108 is carried out gripping with jaw 109, loosened and move up and down operation; Be arranged on and be used on the mount pad 105 control the piston component 102 that jaw 109 moves forward and backward, the piece 106 that connects material surely, the moving piece 107 and control the piston component 104 that the said moving piece 107 that connects material moves forward and backward of connecting material.Transport is delivered to piece 106 places that connect material surely with two copper aluminium posts 6; The moving piece 107 that connects material of piston component 104 controls moves to the position that receives copper aluminium post 6; Behind two copper aluminium posts 6 of each reception; Piston component 104 piece 107 that promotes again to connect material moves a setpoint distance received two bronze medal aluminium posts 6 is staggered with copper aluminium post 6 positions at piece 106 places that connect material surely; To prevent that jaw 109 from damaging the copper aluminium post of back when carrying out the gripping operation; Piston component 103 drives gas pawls 108 and jaw 109 and moves on moving down behind the received two bronze medal aluminium posts 6 of gripping more then, drives gas pawls 108 and jaw 109 by piston component 102 and 103 again two copper aluminium posts 6 of gripping are moved and are positioned on the position to be welded.
Said electrode base board pay-off 2 be used for electrode base board 7 in batches put into electrode base sheet select materials automatically be arranged on request behind the dish 201 fixing single-row and controllably be delivered to the station to be welded of welding machine; Its structure such as Fig. 2 and shown in Figure 4; Comprise: electrode base sheet is selected materials automatically and is coiled 201, and transport is got sheet pawl 206; Gas pawl 205; Drive the said piston component 204 of getting 206 gentle pawl 205 foldings of sheet pawl and moving up and down, be installed in and be used to drive the said piston component 203 that sheet pawl 206 gentle pawls 205 move forward and backward of getting on the mount pad 202, connect material seat 207 and electrode base board are to bit detector 208.Transport is delivered to the seat 207 that connects material with electrode base board 7; After said detector 208 detects electrode base board 7 and puts in place; Said piston component 204 drives to be got sheet pawl 206 gentle pawls 205 and moves up and down and open and take out electrode base board 7, and said piston component 203 and 204 drives again to be got sheet pawl 206 gentle pawls 205 electrode base board 7 of taking-up is moved and is positioned on the position to be welded.
Said welding finished product device for discharging 4 is used for the workpiece that welding is good and takes out; Its structure such as Fig. 1 and shown in Figure 5; Comprise: gas pawl 404, get sheet pawl 405, drive said gas pawl 404 and get the piston component 403 that sheet pawl 405 moves up and down, and be installed on the mount pad 401 control gas pawl 404 and get the piston component 402 that sheet pawl 405 moves forward and backward.After the workpiece welding was accomplished, the workpiece that piston component 402 and 403 control gas pawls 404 are good with getting the 405 taking-up welding of sheet pawl also moved to discharge position.
Shown in figure 19, said welding control system comprises like lower module:
Human-computer interaction interface 51 is used for importing welding parameter and showing the duty of welding machine and the status information that shows the welding machine welding process to system according to the material behavior and the size of copper aluminium post 6 to be welded and electrode base sheet 7; The human-computer interaction interface 51 of the utility model adopts touch display screen, and the welding parameter of importing through touch display screen comprises: diameter, pressure parameter, weld interval and the welding current of said copper aluminium post 6.
State detection unit 52; Comprise that being installed in bottom electrode drives the pressure sensor on the cylinder power output precision and be installed in a plurality of position sensors that weldment is got the appropriate location on material station and the welding post, is used for detecting the pressure state information of said copper aluminium post 6 and the welding end surface of electrode base sheet 7 between the residing location status information of said weldment feeding transmission mechanism and said copper aluminium post 6 and electrode base sheet 7; The status information of each manipulator and each executive component of welding mechanism.
Intermediate frequency welding controller 53 is used to control said a plurality of medium-high frequency transformer and adds the discharge time and the welding current of electric welding for said electrode base sheet 7 and copper aluminium post 6; When the area of said copper aluminium post 6 end face nuggets is 50 mm
2The time, and the pressure of the welding end surface between said copper aluminium post 6 and the electrode base sheet 7 reaches 600～1500Kgf/cm
2The time, be 80ms～250ms the weld interval that said intermediate frequency welding controller 53 controls add electric welding, welding current is 50KA～150KA.
Programmable logic controller (PLC) 54, the status information that is used for exporting according to the welding parameter of said human-computer interaction interface 51 outputs and state detection unit 52 is sent operational order to said weldment feeding transmission mechanism and each manipulator of welding mechanism and said intermediate frequency welding controller 53.
Said welding mechanism comprises welding tooling assembly 300, top electrode 301 and the bottom electrode 351 that is used to locate and hold tightly copper aluminium post 6 to be welded and electrode base sheet 7 and drives said top electrode 301 and top electrode that bottom electrode 351 moves up and down drives cylinder 302 and bottom electrode drives cylinder 352 that said conductive electrode seat 321 is held electrode 323 tightly with tapering and is installed in movably in the welding tooling assembly 300.Therefore; Bottom electrode group 35 among Figure 17 comprises: bottom electrode 351, conductive electrode seat 321 and tapering are held electrode 323 tightly; Said bottom electrode 351 is held electrode 323 tightly through conductive electrode seat 321 and tapering; Form welding circuit through copper aluminium post 6 and electrode base sheet 7 with top electrode 301 again, like Fig. 2, Fig. 6, Figure 14 and shown in Figure 15.
Shown in figure 14, said top electrode 301 is installed in the bottom of top electrode seat 303, and said top electrode seat 303 is installed in copper mold 305 belows, and copper mold 305 is through on the piston 304 that is bolted to top electrode driving cylinder 302 on this.The said copper mold 305 of going up is provided with track, can regulate the position of said top electrode seat 303 as required.Said going up between copper mold 305 and the piston 304 is equipped with felt pad 306, between said bolt and the piston 304 felt pad 307 is housed also.
Shown in figure 15, said bottom electrode 351 is installed in lower electrode holder 353 tops, and this lower electrode holder 353 is installed in down copper mold 356 tops again.Between the piston 354 at said bottom electrode driving cylinder 352 tops and the following copper mold 356 pressure sensor 355 that is used to detect pressure between said copper aluminium post 6 and the electrode base sheet 7 is installed; Said copper mold 356 down is provided with track 357, can regulate the position of lower electrode holder 353 as required.
Said welding tooling assembly 300 is installed between said top electrode 301 and the bottom electrode 351; Like Fig. 7, Fig. 8 and shown in Figure 9, it comprises: pedestal 310, slide up and down to be installed in conductive electrode seat 321 on the said pedestal 310, be arranged on that said conductive electrode seat 321 tops are used to hold the copper aluminium post installing hole 328 of treating bit copper aluminium post 6 and the taperings that are installed in the said copper aluminium post installing hole 328 are held electrode 323 tightly.
Like Fig. 7 and shown in Figure 8; Said pedestal 310 is provided with the recess 314 that is used to install said conductive electrode seat 321; The top of said pedestal 310 sets firmly a substrate 312, and this substrate 312 offers the through hole that can let following copper aluminium post 6 pass through, each stacked clamping plate 313 of the left and right sides of said substrate 312; The clamping plate 313 of said substrate 312 and both sides thereof surround the clamp groove of electrode base sheet 7 to be welded; Top electrode 301 has the shape that can cooperate with said electrode base sheet 7 inwalls to be welded, and therefore, said clamp groove constitutes the location of said electrode base sheet to be welded 7 and holds structure tightly with said top electrode 301.For example, for the electrode base sheet with U-shaped cross-section 7, top electrode 301 is a cuboid, and is shown in figure 14.For electrode base sheet 7 with E shape cross section; Said top electrode 301 comprises two top electrode unit 3012 that are movably arranged on electrode tip holder 3011; Like Figure 20 and shown in Figure 21; Processed the having a certain degree of upper outside face that said top electrode unit 3012 and said electrode tip holder 3011 are slidingly matched, and between two top electrode unit 3012 and with the equal mounting spring of vertical direction that top electrode seat 3011 is fitted, make the reset condition of top electrode unit 3012 under the effect of spring force, remain on open configuration; Go up weld cylinder during welding job and drive the decline of welding electrode mechanism; Until pushing up workpiece and being continuously applied down force pressure, make said two top electrode unit 3012 in the situation lower edge of being stressed with it the position of the angle electrode tip holder 3011 of fitting begin to shrink, thereby clamp risers and the conduction in the middle of the E shape electrode base sheet 7.
Recess 314 bottom surfaces of said pedestal 310 are having the perforate that can supply said bottom electrode 351 to stretch into said copper aluminium post installing hole 328 corresponding positions.
Shown in figure 10, said conductive electrode seat 321 is provided with the copper aluminium post installing hole 328 of epimere band conical inboard wall face 3221, is used to hold that to hold the internal face of outside wall surface and said copper aluminium post installing hole 328 of electrode 323 tightly suitable with the tapering of the said copper aluminium of clamping post 6.The middle and upper part of said installing hole 328 is cylindrical shapes protruding 322 of outstanding said rectangular conductive electrode tip holder 321; Protruding 322 upper external thread of this cylindrical shape connect a stop nut 325; Periphery is provided with a circle concave station 3234; The interior edge at said stop nut 325 tops just in time is stuck in concave station 3234 places that said tapering is held electrode 323 tops tightly, makes tapering hold electrode 323 tightly and can not break away from said conductive electrode seat 321.Said stop nut 325 belows can also be provided with a spacing interlocking nut 326 that is connected with protruding 322 outer wall threads of cylindrical shape; Thereby the lock height that is used to regulate stop nut 325 is regulated the height that tapering is held electrode 323 tightly, makes the top of copper aluminium post 6 of being held tightly electrode 323 clampings by said tapering a little more than the top end face of (promptly reserving the required melt zone of welding) said stop nut 325.
The parallel taperings that are provided with in two mutual independently conductive electrode seats 321 and the copper aluminium post installing hole 328 thereof are held electrode 323 tightly on the said pedestal 310; Said copper aluminium post installing hole 328 bottoms are equipped with holds the elastic component 1 that electrode 323 produces the active force that makes progress tightly to said tapering, and elastic component 1 is a compression spring.
Said pedestal 310 is installed with vertical guide pillar 317, and the vertical through hole 329 on said vertical guide pillar 317 and the said conductive electrode seat 321 is slidingly matched, and makes said conductive electrode seat 321 to slide up and down along said vertical guide pillar 317 relative pedestals 310.Said pedestal 310 is provided with four vertical guide pillars 317; Per two vertical guide pillars 317 are installed a conductive electrode seat 321, socket elastic component 2 318 (the utility model embodiment adopts the compression spring) all on the top of every vertical guide pillar 317, and these elastic component 2 318 tops and said substrate 312 offset; Its bottom offsets with said conductive electrode seat 321 end faces; Thus, under no external force effect, conductive electrode seat 321 can be pushed into the position that recess 314 bottoms with pedestal 310 fit down; Be that 2 318 pairs of said conductive electrode seats 321 of said elastic component produce a downward thrust, make said copper aluminium post 6 and the maintenance released state of electrode base sheet 7 before welding.
As shown in Figure 7; Said pedestal 310 bottoms, conductive electrode seat 321 bottoms and tapering are held electrode 323 bottoms tightly and are offered the liftout hole 327 that communicates with said copper aluminium post installing hole 328; Be used for after welding is accomplished welding finished product being ejected, the diameter in said liftout hole 327 is less than the diameter of said copper aluminium post 6.
Said tapering is held the parts that electrode is the most critical of the utility model tightly; Its shape and structure such as Figure 11 and shown in Figure 12; Said tapering is held electrode 323 tops tightly and is had the back taper outer wall 3235 that cooperates with said back taper internal face 3221, and its its vestibule just in time can hold and the said bit copper aluminium post 6 of treating of support.The double wall that said tapering is held electrode 323 tightly offers many axial parts cut-out grooves; Make when the outside wall surface of holding electrode 323 tightly and have cut-off parts when said tapering is squeezed; The double wall of the said copper aluminium of its clamping post 6 inwardly draws in; Hold the suffered extruding force of electrode 323 outside wall surface tightly when cancelling when said tapering, the double wall of the said copper aluminium of its clamping post 6 restores to the original state.
In a most preferred embodiment of the utility model; Said tapering is held part on the double wall of electrode 323 tightly and is cut off groove and have six; Wherein three last grooves 3232 that cut off begin to extend downward the middle and lower part from the top that tapering is held electrode 323 double walls tightly; Three incision fault troughs 3233 begin to extend upward to the middle and upper part from the bottom that tapering is held electrode 323 double walls tightly in addition, stagger each other in said three positions of going up cut-out groove 3232 and said three incision fault troughs 3233.When the top tapering outer wall 3235 that this structure makes said tapering hold electrode 323 tightly is extruded; The double wall of top tapering part inwardly draws in; But owing to receive the draw of the top tapering double wall partly of inside gathering; The double wall that said tapering is held the bottom of electrode 323 tightly slightly outwards opens on the contrary, and tapering is held electrode 323 tightly and only held the part of said copper aluminium post 6 near welding ends tightly when making welding, thus the deformation extent that can save welding institute's calorific requirement and reduce welding work pieces.
When driving the cylinder 302 downward top electrodes 301 that promote, said top electrode is pressed in above the said electrode base sheet 7; Simultaneously said bottom electrode drives cylinder 352 when upwards promoting said bottom electrode 351; Said bottom electrode 351 promotes said conductive electrode seat 321, and upwards to slide into the bottom surface of said copper aluminium post 6 tops and said electrode base sheet 7 inconsistent; Said bottom electrode 351 continued to move up and equaled said copper aluminium post 6 is applied a downward pressure this moment; Cause said tapering to hold the said relatively conductive electrode seat of electrode 323 321 tightly move toward one another take place, thereby said back taper internal face 3221 compressing taperings are held electrode 323 tightly and had the outside wall surface of tapering part and the double wall of the said copper aluminium of its clamping post 6 inwardly drawn in hold and locate said copper aluminium post 6 tightly.
When said top electrode drives that cylinder 302 drives that said top electrode 301 moves upward and bottom electrode when driving cylinder 352 and driving said bottom electrode 351 and move downward; Said tapering is held the suffered pressure of electrode 323 outside wall surface tightly and is cancelled; Under the effect of said elastic component 1 and elastic component 2 318, said conductive electrode seat 321 is held electrode 323 tightly with tapering and is recovered original position.
Like Fig. 6 and shown in Figure 8; The length direction of the said electrode base sheet 7 to be welded in said pedestal 310 upper edges offers horizontal guide hole 315; This horizontal guide hole 315 is slidingly matched with the horizontal guide 316 that is installed on the welding machine frame, makes said pedestal 310 to slidably reciprocate along said horizontal guide 316.During welding, control in the said welding tooling assembly 300 two copper aluminium posts 6 of parallel distribution through double stroke cylinder and send to the welding position at twice.
The power output precision that said bottom electrode drives cylinder 352 is provided with the pressure sensor 355 that is used to detect welding end surface pressure between said copper aluminium post 6 and the electrode base sheet 7.
Be provided with the cooling water circulation canal 331 that is used to reduce said welding tooling assembly 300 operating temperatures in the body of said pedestal 310 and conductive electrode seat 321.
Figure 18 is the welding process figure of the utility model copper aluminium columnar resistance welding machine, chats the welding process of the utility model welding machine in detail below in conjunction with Figure 18.
Step 1: copper aluminium post 6 (the copper aluminium nail of also promptly usually saying) bulk storage is advanced said copper aluminium post select materials automatically and coil in 101; Copper aluminium post material conveying device 1 can be waited for and get material by specifying requirement that copper aluminium post 6 auto arrangement are become two fixing row and controllably be delivered to get the material station.
Step 2: after detecting copper aluminium post 6 and putting in place, welding machine promptly starts bias placement material cylinder, once with two copper aluminium posts 6 lubricating substance road that squints out, after the input that puts in place, starts cylinder 103 automatically and drives gas pawls 108 and jaw 109 two copper aluminium nails of gripping and mentioning simultaneously.Mention put in place with the gripping input after, cylinder 102 starts automatically, and gas pawl 108 and jaw 109 are moved to the frock position; Input puts in place; Cylinder 103 gentle pawls 108 start with jaw 109 automatically, and successively action is put two copper aluminium posts 6 in the welding tooling assembly 300 into.
Step 3: freely put electrode base sheet 7 into electrode base sheet and select materials automatically in the dish 201, electrode base board material conveying assembly 2 can be fixing single-row and can control and be delivered to the seat 207 that connects material by specifying requirements that electrode base sheet 7 is arranged in, and material is got in wait.This action is carried out with the conveying action of above-mentioned copper aluminium post 6 simultaneously.
Step 4: after detecting copper aluminium post 6 and putting in place with electrode base sheet 7; Through cylinder assembly 102 and 103 two bronze medal aluminium posts 6 are moved and to put to two copper aluminium post installing holes 328 of welding tooling assembly 300, drive through cylinder assembly 203 and 204 again and get sheet pawl 206 and electrode base sheet 7 is taken out the seat 207 that connects material move and put in the electrode base sheet clip slot that surrounds to two clamping plate 313 of welding tooling assembly 300.
Step 5: utilize double stroke cylinder 360 that welding tooling assembly 300 is moved to first welding position, upper cylinder assembly 302 starts makes top electrode 301 contact with the groove surfaces of U type electrode base sheet 7 but do not stress (cylinder stretch out stroke can limit adjustment).The detection signal back that puts in place automatically starts bottom electrode and drives cylinder 352 and drive bottom electrodes 351 and overcome the elastic force of elastic component 2 318 jack-up conductive electrode seat 321 moves to electrode base sheet 7 directions from the bottom; Force copper aluminium post 6 to press to electrode base sheet 7 and withstand on the top electrode 301 that contacts but do not exert pressure and continue to increase gas that bottom electrode drives cylinder 352 and top electrode is driven produce between the piston 304 of cylinder 302 and the piston 354 that bottom electrode drives cylinder 352 axial compressive force that increases gradually (the driven weld cylinder that the difference through gas circuit design and cylinder bore makes to send maximum pressure all the time less than main weld cylinder), and detect the pressure of generation through being located at pressure sensor 355 on the bottom electrode driving cylinder 352.In case the pressure that arrival presets promptly sends a signal and is given to welding controller; Begin the discharge welding; At this moment; The back taper outer wall 3235 that tapering is held electrode 323 tightly cooperates with the back taper internal face 3221 of copper aluminium post installing hole 328,, can copper aluminium post 6 held tightly from the trend center by compression under the situation of power along the workpiece centre axis direction.To reduce the distortion that part is produced because of being heated in welding current loss and the welding process.Upper/lower electrode drove each time of cylinder reset condition after welding was accomplished; Slip cap is connected on recess 314 bottom surfaces that elastic component 2 318 on the vertical guide pillar 317 forces conductive electrode seat 321 to be displaced downwardly to pedestal 310 and fits, thereby elastic component 1 is held tapering tightly electrode 323 upwards top and outer Zhang Fuwei are loosened copper aluminium post 6 simultaneously.
Step 6: said double stroke cylinder 360 moves to second welding post again with said welding tooling assembly 300, repeating step five.
Step 7: after accomplishing twice welding; Said double stroke cylinder 360 all stretches out welding tooling assembly 300 is pushed into the original station that connects material; Being about to the inner chamber that welding finished product holds electrode 323 tightly from said tapering on the liftout cylinder ejects; Take out the welding finished product material by sheet pawl 405 clampings of getting of welding finished product device for discharging 4 then, accomplish the welding processing of a finished product, promptly and can begin place work piece and repeat the welding action.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.Any modification of being done within all spirit and principles at the utility model, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. a copper aluminium columnar resistance welding machine is used for copper aluminium post (6) is soldered to an electrode base sheet (7)
,Comprise: weldment and welding finished product feeding transmission mechanism, welding mechanism, the source of welding current and welding control system; It is characterized in that: the medium frequency inverter circuit that the said source of welding current is made up of a plurality of medium-high frequency transformers connected in parallel provides; The said source of welding current Connect Power the respectively utmost point (301) and bottom electrode (351); Said bottom electrode (351) is held electrode (323) tightly through conductive electrode seat (321) and tapering, again through copper aluminium post (6) and electrode base sheet (7) and top electrode (301) formation welding circuit.
2. copper aluminium columnar resistance welding machine according to claim 1, it is characterized in that: said welding control system comprises:
Human-computer interaction interface (51) is used for the status information of importing welding parameter and showing the welding machine welding process to system according to the material behavior and the size of copper aluminium post to be welded (6) and electrode base sheet (7);
State detection unit (52); Comprise the pressure sensor that is installed on the said welding mechanism and be installed in a plurality of position sensors on the said weldment feeding transmission mechanism, be used for detecting the pressure state information of said copper aluminium post (6) and the welding end surface of electrode base sheet (7) between the said residing positional information of weldment feeding transmission mechanism and said copper aluminium post (6) and electrode base sheet (7);
Intermediate frequency welding controller (53) is used to control said a plurality of medium-high frequency transformer and adds the discharge time and the welding current of electric welding for said electrode base sheet (7) and copper aluminium post (6);
Programmable logic controller (PLC) (54), the status information that is used for exporting according to the welding parameter of said human-computer interaction interface (51) output and state detection unit (52) is sent operational order to said weldment feeding transmission mechanism and each manipulator of welding mechanism and said intermediate frequency welding controller (53).
3. copper aluminium columnar resistance welding machine according to claim 2; It is characterized in that: said human-computer interaction interface (51) is a touch display screen, and the welding parameter of importing through human-computer interaction interface (51) comprises: diameter, pressure parameter, weld interval and the welding current of said copper aluminium post (6).
4. copper aluminium columnar resistance welding machine according to claim 3; It is characterized in that: the pressure sensor of said state detection unit (52) is installed in bottom electrode and drives on the cylinder power output precision, and said a plurality of position sensors are installed in weldment respectively and get the appropriate location on material station and the welding post.
5. copper aluminium columnar resistance welding machine according to claim 4; It is characterized in that: be 80ms～250ms the weld interval that the said a plurality of medium-high frequency transformers of said intermediate frequency welding controller (53) control add electric welding for said electrode base sheet (7) and copper aluminium post (6), and welding current is 50KA～150KA.
6. according to the described copper aluminium of the arbitrary claim of claim 1 to 5 columnar resistance welding machine; It is characterized in that: said welding mechanism comprises welding tooling assembly (300), top electrode (301) and bottom electrode (351) and drives said top electrode (301) and top electrode that bottom electrode (351) moves up and down drives cylinder (302) and bottom electrode driving cylinder (352) that said conductive electrode seat (321) and tapering are held electrode (323) tightly and be installed in movably in the welding tooling assembly (300).
7. according to the described copper aluminium of the arbitrary claim of claim 1 to 5 columnar resistance welding machine; It is characterized in that: said weldment and welding finished product feeding transmission mechanism comprise: copper aluminium post pay-off (1), electrode base board pay-off (2) and welding finished product device for discharging (4), said copper aluminium post pay-off (1), electrode base board pay-off (2) and welding finished product device for discharging (4) are provided with the action that independently drives transmitting device and their manipulator mechanism unit separately and all receive said programmable logic controller (PLC) (53) control.
8. according to the described copper aluminium of the arbitrary claim of claim 1 to 5 columnar resistance welding machine, it is characterized in that: a plurality of medium-high frequency transformers of the pedestal (310) of said welding tooling assembly (300), conductive electrode seat (321) and the formation source of welding current are provided with the cooling water circulation canal (331) that is used to reduce operating temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201975710U CN202162489U (en) | 2011-06-14 | 2011-06-14 | Copper-aluminum column resistance welding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201975710U CN202162489U (en) | 2011-06-14 | 2011-06-14 | Copper-aluminum column resistance welding machine |
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| CN202162489U true CN202162489U (en) | 2012-03-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825372A (en) * | 2011-06-14 | 2012-12-19 | 深圳市鹏煜威科技有限公司 | Copper-aluminum column resistance welder and welding control method thereof |
| CN107855676A (en) * | 2017-11-07 | 2018-03-30 | 成都航睿科精密机械有限公司 | The welding system of metal o-ring |
-
2011
- 2011-06-14 CN CN2011201975710U patent/CN202162489U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825372A (en) * | 2011-06-14 | 2012-12-19 | 深圳市鹏煜威科技有限公司 | Copper-aluminum column resistance welder and welding control method thereof |
| CN102825372B (en) * | 2011-06-14 | 2014-09-17 | 深圳市鹏煜威科技有限公司 | Copper-aluminum column resistance welder and welding control method thereof |
| CN107855676A (en) * | 2017-11-07 | 2018-03-30 | 成都航睿科精密机械有限公司 | The welding system of metal o-ring |
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