CN101549434A - Welding device and method - Google Patents
Welding device and method Download PDFInfo
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- CN101549434A CN101549434A CNA2009100371405A CN200910037140A CN101549434A CN 101549434 A CN101549434 A CN 101549434A CN A2009100371405 A CNA2009100371405 A CN A2009100371405A CN 200910037140 A CN200910037140 A CN 200910037140A CN 101549434 A CN101549434 A CN 101549434A
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Abstract
The invention relates to a welding device and a method; the welding device comprises a current-limiting resistor (1), a fixed clamp (2), a moving clamp (3), a capacitor (9) and a power supply and control system (10), wherein the power supply and control system (10) is connected with the current-limiting resistor (1) and the capacitor (9) so as to form a circuit; the capacitor (9) is connected with the fixed clamp (2) and the moving clamp (3) so as to from a circuit; a first welding piece (4) is clamped in the fixed clamp (2); and a second welding piece (41) is clamped in the moving clamp (3) and is connected with a position adjusting device (A) which is connected with a spring (6) and is provided with a clamping device (5). When in welding, the moving clamp (3) is pulled toward right and is hooked by the clamping device (5); the power supply is powered on and when the capacitor (9) is charged to working voltage, the clamping device (5) is released. The invention has simple welding device, convenient operation, high welding joint strength, corrosion resistance and high welding efficiency.
Description
Technical field
The present invention relates to the welding field technology, relate in particular to the welder and the method for a kind of copper pipe and aluminum pipe, aluminum pipe and aluminum pipe, copper pipe and copper pipe.
Background technology
The solder technology of copper pipe and aluminum pipe, aluminum pipe and aluminum pipe, copper pipe and copper pipe mainly comprises: soldering, friction welding (FW), stored energy welding and electric resistance welding at present.Soldering is to use than the low-melting metal material of mother metal as solder, with the wetting mother metal of liquid solder with fill the workpiece interface gaps and make itself and the mother metal welding method of counterdiffusion mutually, on September 28th, 1988, Chinese Patent Office 88105479 disclosed a kind of brazing method of sleeve joint of aluminium and copper conduits, it is to use silicated aluminum and potassium fluoroaluminate rock quartz as scolder and solder flux, the weldering before on weldment the coated intermediate layer, in a kind of welding method that is higher than soldering under 548 ℃ of states.It is high that its shortcoming is that process requires, and strength of joint is relatively lower the fragility phenomenon, and temperature capacity is poor.
The copper and aluminium welding of stored energy welding, friction welding method welding is taken over and is crossed joint and be applied in the refrigerator industry and obtained certain economic benefits, but also there are many problems that are not easy to overcome simultaneously, after must using scaling powder, welding in the welding process, must clean, must remove after splash on the welding point, the welding, the welded seal face is too narrow, cause solder joint percolation ratio height, can not on long pipe runs, weld, can only adopt interim form or the like, cause not due Market Feedback and product defects.
Comparatively speaking, the method that relatively is suitable for refrigeration product pipeline copper Al pipe butt welding is the Resistance Welding connection technology, electric resistance welding is that weldment is assembled into banjo fixing butt jointing, its end face is closely contacted, utilize resistance heat to be heated to mecystasis, outage also applies the method that upset force is finished welding rapidly then, the copper-aluminium tube joint smooth-shaped that adopts this solder technology to produce, solder joint inside does not have impurity, and postwelding need not secondary operations, and index is better than the joint quality of energy storage welding and friction welding.But electric resistance welding is had relatively high expectations to processing of weldment end face and cleaning, otherwise can cause the contact-making surface heating inhomogeneous, produce defectives such as oxide inclusions, not weld penetration, and joint mechanical property is relatively poor, influences welding quality.
In a word, traditional various welding methods all exist shortcoming separately, and for example the copper and aluminium welding of refrigerator industry connects, and adopt the refrigerator pipeline of above-mentioned traditional welding method welding, and slip is high and become the quality problems of the first-class complaint of user.
Summary of the invention
The object of the present invention is to provide a kind of welder and method, use this apparatus and method welding copper pipe and aluminum pipe, can overcome the various shortcoming of traditional welding method, welder is simple, operation easily, the strength of joint height that has welded, be not easy to leak and corrosion-resistant, welding quality guarantees control easily by equipment, welding production efficiency height.
Technical scheme of the present invention is:
A kind of welder comprises current-limiting resistance, decides anchor clamps, moving anchor clamps, electric capacity and power supply and control system that wherein power supply and control system and current-limiting resistance, electric capacity connect into the loop, and electric capacity with decide anchor clamps and reach and move anchor clamps and connect into the loop; First weldment is clamped in to be decided in the anchor clamps, and second weldment is clamped in the moving anchor clamps, and second weldment is connected with apparatus for adjusting position, and apparatus for adjusting position is connected with in spring and the apparatus for adjusting position fastening device is housed.
Described apparatus for adjusting position is the worm drive structure of being made up of adjusting nut and screw rod, and an end of screw rod is fixed on moving anchor clamps, and the other end of screw rod is equipped with adjusting nut, and an end of spring and adjusting nut touch or be affixed, and the other end card of spring is pressed in the support.
Described fastening device is a grab, and grab one end is a stiff end, and the other end is hooked on the adjusting nut.
The pre compressed magnitude of described spring is 20～30mm.
Capacitance 1000～1200 μ F of described electric capacity, charging voltage 1300～1600V.
The welding method of above-mentioned welder comprises the steps:
1) first weldment is clamped in decides in the anchor clamps, second weldment is clamped in the moving anchor clamps;
2) will move anchor clamps and draw back to the right, hook with fastening device;
3) connect power supply, when capacitor charges to operating voltage, throw off fastening device immediately.
Described first weldment and the second weldment extension are 4～7mm.
It is 10～18mm that described first weldment (4) and second weldment (41) space out.
Described first weldment is aluminum pipe or copper pipe, and described second weldment is aluminum pipe or copper pipe.
Through moving anchor clamps after above-mentioned three steps under the spring pressure effect, (being generally 1～3m/s) moves to deciding anchor clamps with very high speed, when the second weldment tip to face distance in the moving anchor clamps is decided the first weldment end face distance in the anchor clamps and is 0.1mm, its gap is breakdown, produce the fierce process of giving out light, and formation electric arc, make first weldment and the rapid heat fused of the second weldment end face.Under the impulsive force upset of moving anchor clamps, plumb joint is all extruded in deposite metal and oxide-film at last, form firm plumb joint.
The present invention with respect to the beneficial effect of prior art is:
The present invention is a kind of welder and method, and welder is simple, easy to operate, welding quality is controlled easily, the welding efficiency height, and the joint that welds out has intensity height, good seal performance, is difficult for revealing.
Description of drawings
Fig. 1 is a Fundamentals of Welding block diagram of the present invention;
Fig. 2 is the exemplar schematic diagram after welder of the present invention and the method welding;
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Please refer to accompanying drawing 1, welder schematic diagram of the present invention, a kind of welder, comprise current-limiting resistance 1, decide anchor clamps 2, move anchor clamps 3, electric capacity 9 and power supply and control system 10, wherein power supply and control system 10 connects into the loop with current-limiting resistance 1, electric capacity 9, and electric capacity 9 with decide anchor clamps 2 and move anchor clamps 3 to connect into the loop; First weldment 4 is clamped in to be decided in the anchor clamps 2, and second weldment 41 is clamped in the moving anchor clamps 3, and second weldment 41 is connected with apparatus for adjusting position A, and apparatus for adjusting position A is connected with among spring 6 and the apparatus for adjusting position A fastening device 5 is housed; The pre compressed magnitude of spring 6 is 20～30mm; Capacitance 1000～1200 μ F of electric capacity 9, charging voltage 1300～1600V.
Described apparatus for adjusting position A is the worm drive structure of being made up of adjusting nut 7 and screw rod 8, one end of screw rod 8 is fixed on moving anchor clamps 3, the other end of screw rod 8 is equipped with adjusting nut 7, and an end of spring 6 and adjusting nut 7 touch or be affixed, and the other end card of spring 6 is pressed in the support.
Described fastening device 5 is a grab, and grab one end is a stiff end, and the other end is hooked on the adjusting nut 7.
Adopt the welding method of above-mentioned welder, comprise the steps:
1) first weldment, 4 aluminum pipes or copper pipe are clamped in decide in the anchor clamps 2, second weldment, 41 aluminum pipes or copper pipe are clamped in the moving anchor clamps 3, and aluminum pipe and copper pipe extension are 4～7mm;
2) will move the distance that anchor clamps 3 draw back 10～18mm to the right, hook with grab;
3) connect power supply, when capacitor 9 charges to operating voltage 1300～1600V, throw off grab immediately.
Through above-mentioned steps 1) moving anchor clamps 3 are under the spring pressure effect to the step 3), and (being generally 1～3m/s) moves to deciding anchor clamps 2 with very high speed.When second weldment, 41 aluminum pipes in the moving anchor clamps 3 or copper pipe tip to face distance are decided in the anchor clamps 2 first weldment, 4 aluminum pipes or copper pipe end face distance and are 0.1mm, its gap is breakdown, produce the fierce process of giving out light, and formation electric arc, make first weldment, 4 aluminum pipes or copper pipe and second weldment, 41 aluminum pipes or the rapid heat fused of copper pipe end face.Under the impulsive force upset of moving anchor clamps 3, plumb joint is all extruded in deposite metal and oxide-film at last, form firm copper aluminium, aluminium aluminium, copper brazed joint.Exemplar schematic diagram after the welding please refer to Fig. 2.
Adopt copper-aluminium joint, aluminium aluminium joint, copper copper sleeve intensity height that apparatus of the present invention and method weld out, be not easy to leak and corrosion-resistant, and welder is simple, easy to operate, welding quality is controlled the welding efficiency height easily.
Claims (9)
1, a kind of welder, it is characterized in that comprising current-limiting resistance (1), decide anchor clamps (2), move anchor clamps (3), electric capacity (9) and power supply and control system (10), wherein power supply and control system (10) and current-limiting resistance (1), electric capacity (9) connect into the loop, and electric capacity (9) with decide anchor clamps (2) and move anchor clamps (3) to connect into the loop; First weldment (4) is clamped in to be decided in the anchor clamps (2), second weldment (41) is clamped in the moving anchor clamps (3), and second weldment (41) is connected with apparatus for adjusting position (A), and apparatus for adjusting position (A) is connected with in spring (6) and the apparatus for adjusting position (A) fastening device (5) is housed.
2, welder according to claim 1, it is characterized in that the worm drive structure of described apparatus for adjusting position (A) for forming by adjusting nut (7) and screw rod (8), one end of screw rod (8) is fixed on moving anchor clamps (3), the other end of screw rod (8) is equipped with adjusting nut (7), one end of spring (6) and adjusting nut (7) touch or are affixed, and the other end card of spring (6) is pressed in the support.
3, welder according to claim 1 is characterized in that described fastening device (5) is a grab, and grab one end is a stiff end, and the other end is hooked on the adjusting nut (7).
4, according to any one described welder of claim 1 to 3, the pre compressed magnitude that it is characterized in that described spring (6) is 20～30mm.
5, welder according to claim 4 is characterized in that capacitance 1000～1200 μ F of described electric capacity (9), charging voltage 1300～1600V.
6,, it is characterized in that comprising the steps: according to the welding method of the described welder of claim 1
1) first weldment (4) is clamped in decides in the anchor clamps (2), second weldment (41) is clamped in the moving anchor clamps (3);
2) will move anchor clamps (3) and draw back to the right, hook with fastening device (5);
3) connect power supply,, throw off fastening device (5) immediately when capacitor (9) when charging to operating voltage.
7, welding method according to claim 6 is characterized in that described first weldment (4) and second weldment (41) extension are 4～7mm.
8, welding method according to claim 6 is characterized in that it is 10～18mm that described first weldment (4) and second weldment (41) space out.
9, welding method according to claim 6 is characterized in that described first weldment (4) is aluminum pipe or copper pipe, and described second weldment (41) is aluminum pipe or copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100371405A CN101549434A (en) | 2009-02-10 | 2009-02-10 | Welding device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100371405A CN101549434A (en) | 2009-02-10 | 2009-02-10 | Welding device and method |
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| CN101549434A true CN101549434A (en) | 2009-10-07 |
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| CNA2009100371405A Pending CN101549434A (en) | 2009-02-10 | 2009-02-10 | Welding device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753007A (en) * | 2014-01-13 | 2014-04-30 | 安徽华印机电股份有限公司 | Resistance welding method |
| CN108213924A (en) * | 2018-03-07 | 2018-06-29 | 中建五局工业设备安装有限公司 | A kind of pipeline connect prefabricated platform with pipe fitting |
| CN109249110A (en) * | 2018-11-15 | 2019-01-22 | 燕卓君 | Cu-AL pipe line high-intensity welding device |
| CN109590575A (en) * | 2018-11-15 | 2019-04-09 | 燕卓君 | Cu-AL pipe wire bonding actuator and method |
-
2009
- 2009-02-10 CN CNA2009100371405A patent/CN101549434A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753007A (en) * | 2014-01-13 | 2014-04-30 | 安徽华印机电股份有限公司 | Resistance welding method |
| CN103753007B (en) * | 2014-01-13 | 2016-02-17 | 安徽华印机电股份有限公司 | Method for resistance welding |
| CN108213924A (en) * | 2018-03-07 | 2018-06-29 | 中建五局工业设备安装有限公司 | A kind of pipeline connect prefabricated platform with pipe fitting |
| CN109249110A (en) * | 2018-11-15 | 2019-01-22 | 燕卓君 | Cu-AL pipe line high-intensity welding device |
| CN109590575A (en) * | 2018-11-15 | 2019-04-09 | 燕卓君 | Cu-AL pipe wire bonding actuator and method |
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Open date: 20091007 |