Resistance and the automatic soldering device of copper pipe
The application is that patent name is " resistance and the welder of copper pipe ", Application No. " 2016103390728 ", applies for
Day is the divisional application of the patent of invention in " on May 19th, 2016 ".
Technical field
The present invention relates to production device for circuit board field, particularly to the welding equipment of circuit board resistance Yu copper pipe.
Background technology
As it is shown in figure 1, the resistance (100) on circuit board needs to utilize wire (300) to be welded on one with copper pipe (200)
Rising, the welding manner used at present is manually welding, needs resistive conductor (400) bending at resistance (100) two ends, folding during welding
The end of curved rear resistive conductor (400) is welded with one end of wire (300), other end welding copper pipe (200) of wire (300).Hands
Work welding has the drawback that: welding efficiency is low, of low quality, labor intensity is big.
Summary of the invention
The applicant, for the disadvantages mentioned above of prior art, studies and improves, it is provided that a kind of resistance and copper pipe from
Dynamic welder, it is achieved the automatic welding between resistance and wire, wire and copper pipe, improves welding efficiency and quality.
In order to solve the problems referred to above, the present invention uses following scheme:
A kind of resistance and the automatic soldering device of copper pipe, lead including resistance conveying apparatus for bending, wire transporting device, resistance
Wire bonding device, copper pipe conveyer device and conductor copper pipe welder, wire transporting device and copper pipe conveyer device are respectively positioned on electricity
The lower section of resistance conveying apparatus for bending, resistance wire welder and conductor copper pipe welder lay respectively at the two ends of wire;
Described resistance conveying apparatus for bending includes gripper shoe, and gripper shoe is provided with resistance conveying assembly, resistance propelling movement group
Part and resistance foldable component, described resistance conveying assembly includes the two resistance grip blocks be arrangeding in parallel, under two resistance grip blocks
End is placed in resistance and pushes between assembly and resistance foldable component, imports resistance clamping gathering sill between two resistance grip blocks
Pushing the end of assembly to resistance, and pushed to resistance foldable component by resistance propelling movement assembly, described resistance foldable component includes
Can just be snapped in the bending pressure head on the resistive conductor at resistance two ends and be installed on the bending driving cylinder above bending pressure head;
Described wire transporting device and copper pipe conveyer device are respectively arranged on base plate and live apart in the transverse ends of base plate;
Described wire transporting device include wire guidance set, be respectively arranged in the wire of wire guidance set front and back end push assembly and
Wire positioning component, wire positioning component is positioned at the underface of resistance foldable component;
Described copper pipe conveyer device includes copper pipe guidance set, is respectively arranged in the copper pipe of copper pipe guidance set rear and front end
Pushing assembly and copper pipe positioning component, copper pipe positioning component is positioned at the underface of wire positioning component;
Described resistance wire welder is positioned at the contact position of the resistive conductor lower end after bending and wire upper end, conductor copper pipe
Welder is positioned at the contact position of wire lower end and copper pipe upper end.
Further improvement as technique scheme:
The upper end of described resistance grip block is bent into horizontal introduction part, be positioned at downside horizontal introduction part on with resistance
The rolling groove that two ends coordinate;Push with the resistance slightly larger than resistance thickness in the middle part of the lower end of resistance grip block and between gripper shoe
Space, between both sides, lower end and the gripper shoe of resistance grip block, the resistive conductor with the diameter slightly larger than resistive conductor pushes space,
When resistance is positioned at the bottom of resistance grip block, resistance and resistive conductor can push away from described resistance propelling movement space and resistive conductor respectively
Send in space pushed go out.
Described resistance pushes assembly and includes pushing, by resistance, the resistance propelling movement cylinder that bearing is horizontally installed in gripper shoe
And the resistance being installed on the piston rod end that resistance pushes cylinder pushes head, the lateral symmetry of described resistance propelling movement head is provided with to be led
To wheel, directive wheel coordinates in the guiding slot rolling being installed in gripper shoe.
Described bending pressure head includes the top board driving the piston-rod lower end of cylinder to be connected with bending, by the guiding at two ends
The up and down lower platen being installed on below top board of depression bar, guides and is arranged with between top board and lower platen on depression bar
Spring, the lower surface of lower platen is provided with the arc clamping head that polylith coordinates with resistive surface, guides the lower end of depression bar with card
It is buckled in the card on the upside of resistive conductor oral, gripper shoe is provided with the bending top relied on the downside of resistive conductor.
Described wire guidance set includes that a Y type wire guide plate and wire push assembly, and Y type wire guide plate is by many
Root support bar is installed on base plate, imports end including wire and wire bifurcated derives end, and wire importing end is placed in wire and pushes group
The side of part, wire bifurcated is derived the lateral surface of end and is provided with wire propelling movement assembly;Described wire bifurcated derives the outer panel of end
Being provided with the propelling movement groove of multiple inside and outside side, wire pushes the many rollings arranged in parallel that assembly includes being installed on support
Dynamic guide rod, the upper and lower side rolling guide rod is provided with the rubber rolling ring can inserted in described propelling movement groove, and adjacent rolls under guide rod
Holding and connected by belt wheel, Timing Belt, one rolls guide rod is connected with roll drive motor.
Described wire bifurcated derive end derive end be provided with lay respectively at the upper and lower two ends of wire upper gathering sill and under lead
To groove, upper gathering sill is snapped in the upper end of wire, and the lower end of wire is snapped in lower gathering sill;The derivation end of upper gathering sill with
The supporting bracket of resistive conductor.
Described wire pushes assembly and includes that the wire of the horizontal positioned being installed in supporting vertical plate pushes cylinder, and wire pushes
The piston rod end of cylinder is provided with wire and pushes head, and the upper end of supporting vertical plate is provided with the arc wire bent diagonally downward and leads
Entering groove, the lower end of arc wire lead-in groove pushes head towards wire, and wire pushes has the wire support groove accommodating wire on head;
Described wire positioning component includes the wire positioning cylinder that the vertical equity being installed on edge-on bar is arranged, wire positioning cylinder
Piston rod end is provided with wire located lateral plate and wire longitudinal register plate.
Described copper pipe guidance set includes that the Y type copper pipe guide plate being installed on base plate and copper pipe allocate assembly, Y type copper pipe
Guide plate includes that copper pipe imports end and copper pipe bifurcated derives end, and copper pipe importing end is placed in copper pipe and pushes the side of assembly, and copper pipe is led
Entering the side of end with allocating groove, described copper pipe is allocated assembly and is included being installed on and allocate in a bearing, vertical equity and arrange
Allocate cylinder, allocate the piston rod end of cylinder and be provided with and allocate block, described in allocate block can be inserted into described in allocate in groove;Described copper
Pipe pushes assembly and includes that the copper pipe being installed on the transverse horizontal setting that copper pipe pushes on installing rack pushes cylinder, and copper pipe pushes cylinder
Piston rod end copper pipe be installed push head, copper pipe pushes the upper end of installing rack and is provided with the arc copper pipe bent diagonally downward
Lead-in groove, the lower end of arc copper pipe lead-in groove imports end towards copper pipe;Described copper pipe positioning component includes being installed on horizontal cross bar
On transverse baffle.
Described resistance wire welder includes that the resistance welding being installed on resistance welding bearing pushes cylinder, electric resistance welding
Connect push cylinder piston rod end resistance soldering tip assembly is installed, described resistance soldering tip assembly include resistance solder insert pipe and
Being installed on resistance solder and insert the resistance high temperature melting soldering tip of pipe lower end, the resistance solder of resistance high temperature melting soldering tip goes out mouth towards resistance
At the contact bonding of wire.
Described conductor copper pipe welder includes that the copper pipe welding being installed on copper pipe welding bearing pushes cylinder, and copper pipe welds
Connect push cylinder piston rod end copper pipe soldering tip assembly is installed, described copper pipe soldering tip assembly include copper pipe solder insert pipe and
Being installed on copper pipe solder and insert the copper pipe high temperature melting soldering tip of pipe lower end, the copper pipe solder of copper pipe high temperature melting soldering tip goes out mouth towards wire
At the contact bonding of copper pipe.
The method have technical effect that:
The welder of the present invention, for the automatic welding between copper pipe and resistance, substantially increases welding efficiency and matter
Amount, reduces cost of labor and labor intensity.
Accompanying drawing explanation
Fig. 1 be in the present invention resistance and copper pipe weld schematic diagram.
Fig. 2 is the front view of welder in the present invention.
Fig. 3 is the three-dimensional structure diagram of welder in the present invention.
Fig. 4 is the three-dimensional structure diagram of resistance conveying apparatus for bending in the present invention.
Fig. 5 is the three-dimensional structure diagram of resistance grip block in resistance conveying apparatus for bending.
Fig. 6 is the three-dimensional structure diagram that in resistance conveying apparatus for bending, resistance pushes assembly.
Fig. 7 is the three-dimensional structure diagram of resistance foldable component in resistance conveying apparatus for bending.
Fig. 8 is the three-dimensional structure diagram of wire transporting device in the present invention.
Fig. 9 is the three-dimensional structure diagram of Y type wire guide plate in wire transporting device.
Figure 10 is the three-dimensional structure diagram that in wire transporting device, wire pushes assembly.
Figure 11 is the welding schematic diagram of wire, copper pipe and resistance in the present invention.
Figure 12 is the three-dimensional structure diagram of wire positioning component in wire transporting device.
Figure 13 is the three-dimensional structure diagram of copper pipe conveyer device in the present invention.
Figure 14 is that in copper pipe conveyer device, assembly allocated by copper pipe and copper pipe pushes the three-dimensional structure diagram of assembly.
Figure 15 is the three-dimensional structure diagram of copper pipe positioning component in copper pipe conveyer device.
Figure 16 is partial enlarged drawing at the A of Figure 11.
Figure 17 is partial enlarged drawing at the B of Figure 11.
In figure: 1, resistance conveying apparatus for bending;100, resistance;101, gripper shoe;1011, slot rolling is guided;102, resistance is defeated
Sending component;1021, resistance grip block;10211, horizontal introduction part;10212, rolling groove;1022, clamping gathering sill;103, resistance
Push assembly;1030, resistance pushes bearing;1031, resistance pushes cylinder;1032, resistance pushes head;1033, directive wheel;104、
Resistance foldable component;1041, bending pressure head;10411, top board;10412, depression bar is guided;10413, lower platen;10414, bullet
Spring;10415, arc clamping head;10416, block oral;10417, bending top;1042, bending drives cylinder;105, resistance pushes away
Send space;106, resistive conductor pushes space;2, wire transporting device;200, copper pipe;201, wire guidance set;2010, support
Bar;2011, Y type wire guide plate;20111, wire imports end;20112, wire bifurcated derives end;201121, groove is pushed;
2012, wire pushes assembly;20121, support;20122, guide rod is rolled;20123, rubber rolling ring;20124, belt wheel;20125、
Timing Belt;20126, roll drive motor;2013, upper gathering sill;20131, supporting bracket;2014, lower gathering sill;202, wire pushes away
Enter assembly;2021, supporting vertical plate;2022, wire pushes cylinder;2023, wire pushes head;20231, wire support groove;2024、
Arc wire lead-in groove;203, wire positioning component;2031, edge-on bar;2032, wire positioning cylinder;2033, wire is laterally fixed
Position plate;2034, wire longitudinal register plate;3, resistance wire welder;300, wire;301, resistance welding bearing;302, electricity
Welding resistance connects propelling movement cylinder;303, resistance soldering tip assembly;3031, pipe inserted by resistance solder;3032, resistance high temperature melting soldering tip;
30321, resistance solder goes out mouth;4, copper pipe conveyer device;400, resistive conductor;401, copper pipe guidance set;4011, Y type copper pipe is led
To plate;40111, copper pipe imports end;40112, copper pipe bifurcated derives end;40113, groove is allocated;4012, assembly allocated by copper pipe;
40121, a bearing is allocated;40122, cylinder is allocated;40123, block is allocated;402, copper pipe pushes assembly;4021, copper pipe pushes peace
Shelve;4022, copper pipe pushes cylinder;4023, copper pipe pushes head;4024, arc copper pipe lead-in groove;403, copper pipe positioning component;
4031, horizontal cross bar;4032, transverse baffle;5, conductor copper pipe welder;501, copper pipe welding bearing;502, copper pipe welding
Push cylinder;503, copper pipe soldering tip assembly;5031, pipe inserted by copper pipe solder;5032, copper pipe high temperature melting soldering tip;50321, copper pipe
Solder goes out mouth;6, base plate.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.
As shown in Figure 2 and Figure 3, the resistance of the present embodiment and the automatic soldering device of copper pipe, carry apparatus for bending including resistance
1, wire transporting device 2, resistance wire welder 3, copper pipe conveyer device 4 and conductor copper pipe welder 5, wire conveying dress
Put 2 and copper pipe conveyer device 4 be respectively positioned on resistance conveying apparatus for bending 1 lower section, resistance wire welder 3 and conductor copper pipe weldering
Connection device 5 lays respectively at the two ends of wire 300.Resistance 100 is carried and bending by resistance conveying apparatus for bending 1, wire conveying dress
Putting 2 pairs of wires 300 to carry, after wire 300 and bending, the resistive conductor 400 of resistance 100 converges to resistance wire welder 3
Place welds;Copper pipe 200 is carried by copper pipe conveyer device 4, and copper pipe 200 converges to conductor copper pipe with wire 300 and welds
Weld at device 5;After having welded as shown in Figure 1.
As shown in Figure 4, resistance conveying apparatus for bending 1 includes gripper shoe 101, and gripper shoe 101 is provided with resistance conveying group
Part 102, resistance push assembly 103 and resistance foldable component 104, and described resistance conveying assembly 102 includes two electricity be arrangeding in parallel
Resistance grip block 1021, the lower end of two resistance grip blocks 1021 is placed in resistance and pushes between assembly 103 and resistance foldable component 104,
Resistance 100 is directed into resistance the clamping gathering sill 1022 between two resistance grip blocks 1021 and pushes the end of assembly 103, and
Being pushed assembly 103 by resistance and push to resistance foldable component 104, resistance foldable component 104 includes can being just snapped in resistance 100
Bending pressure head 1041 on the resistive conductor 400 at two ends and be installed on the bending above bending pressure head 1041 and drive cylinder 1042.Folding
Curved driving cylinder 1042 promotes bending pressure head 1041, by resistive conductor 400 bending 90 degree at resistance 100 two ends.
As shown in Figure 4, Figure 5, the upper end of resistance grip block 1021 is bent into horizontal introduction part 10211, is positioned at the water of downside
With the rolling groove 10212 coordinated with resistance 100 two ends in flat introduction part 10211;Resistance 100 is as horizontal introduction part 10211
On rolling groove 10212 in, by the guide effect of rolling groove 10212, resistance 100 is fed to the folder of resistance grip block 1021
Holding in gathering sill 1022, the middle part of clamping gathering sill 1022 can accommodate resistance 100, and both sides can accommodate resistive conductor 400;Resistance clamps
Space 105, resistance grip block is pushed with the resistance slightly larger than resistance thickness in the middle part of the lower end of plate 1021 and between gripper shoe 101
Between both sides, lower end and the gripper shoe 101 of 1021, the resistive conductor with the diameter slightly larger than resistive conductor 400 pushes space 106, when
When resistance 100 is positioned at the bottom of resistance grip block 1021, resistance 100 and resistive conductor 400 can push space 105 from resistance respectively
And resistive conductor push in space 106 pushed go out.
As shown in Figure 6, resistance propelling movement assembly 103 includes that pushing bearing 1030 by resistance is horizontally installed to gripper shoe 101
On resistance push cylinder 1031 and be installed on the resistance of the piston rod end that resistance pushes cylinder 1031 and push 1032, resistance
The lateral symmetry of propelling movement 1032 is provided with directive wheel 1033, and directive wheel 1033 cooperation is installed on the orienting roll in gripper shoe 101
In groove 1011.Pushed the impetus of cylinder 1031 by resistance, resistance 100 is pushed extremely waits the bending pressure head 1041 pressed down
Underface.
As it is shown in fig. 7, bending pressure head 1041 includes the top board driving the piston-rod lower end of cylinder 1042 to be connected with bending
10411, by the guiding up and down lower platen 10413 being installed on below top board 10411 of depression bar 10412 at two ends, guide
The spring 10414 between top board 10411 and lower platen 10413, lower platen 10413 times it is arranged with on depression bar 10412
Surface is provided with the arc clamping head 10415 of polylith and resistance 100 surface engagement, guides the lower end of depression bar 10412 with buckle
Card oral 10416 on the upside of resistive conductor 400, gripper shoe 101 is provided with the bending top relied on the downside of resistive conductor 400
10417.Bending pressure head 1041 drives cylinder 1042 to drive by bending, coordinates, by resistance 100 two ends with bending top 10417
Resistive conductor 400 downward bending.
As shown in Figure 8, wire transporting device 2 and copper pipe conveyer device 4 are respectively arranged on base plate 6 and live apart in base plate 6
Transverse ends, wire transporting device 2 and copper pipe conveyer device 4 push horizontal to base plate 6 of wire 300 and copper pipe 200 respectively
Middle part is mobile;Wire transporting device 2 includes wire guidance set 201, is respectively arranged in leading of wire guidance set 201 front and back end
Line pushes assembly 202 and wire positioning component 203, and wire positioning component 203 is positioned at the underface of resistance foldable component 104.
As shown in Figure 8, Figure 9, wire guidance set 201 includes that a Y type wire guide plate 2011 and wire push assembly
2012, Y type wire guide plates 2011 are installed on base plate 6 by many support bars 2010, import end 20111 including wire and lead
Line bifurcated derives end 20112, and wire importing end 20111 is placed in wire and pushes the side of assembly 202, and wire bifurcated derives end
The lateral surface of 20112 is provided with wire and pushes assembly 2012, and wire 300 imports at wire and imports at end 20111, and divides at wire
Fork is derived bifurcated at end 20112 and is derived the longitudinal both sides to base plate 6, i.e. derives the resistive conductor 400 times to resistance 100 two ends
Side;The outer panel of wire bifurcated derivation end 20112 is provided with the propelling movement groove 201121 of multiple inside and outside side.As shown in Figure 10,
Wire pushes the many rolling guide rods 20122 arranged in parallel that assembly 2012 includes being installed on support 20121, rolls guide rod
The upper and lower side of 20122 is provided with can insert the rubber rolling ring 20123 pushed in groove 201121, adjacent rolling guide rod 20122
Lower end is connected by belt wheel 20124, Timing Belt 20125, and one rolls guide rod 20122 is connected with roll drive motor 20126.Wire
Push the setting of assembly 2012, it is therefore an objective to improve pushing efficiency and the reliability of wire 300.
As shown in Fig. 8, Figure 11, the derivation end of wire bifurcated derivation end 20112 is provided with and lays respectively at wire about 300 two
The upper gathering sill 2013 of end and lower gathering sill 2014, upper gathering sill 2013 is snapped in the upper end of wire 300, the lower end of wire 300
It is snapped in lower gathering sill 2014;The derivation end of upper gathering sill 2013 is with the supporting bracket 20131 of resistive conductor 400, resistive conductor 400
After bending, its lower end is just as on described supporting bracket 20131, and welds at supporting bracket 20131.
As shown in Figure 8, wire pushes assembly 202 and includes that the wire being installed on the horizontal positioned in supporting vertical plate 2021 pushes
Cylinder 2022, wire pushes the piston rod end of cylinder 2022 and is provided with wire and pushes 2023, the upper end of supporting vertical plate 2021
Being provided with the arc wire lead-in groove 2024 bent diagonally downward, the lower end of arc wire lead-in groove 2024 pushes head towards wire
2023, wire pushes has the wire support groove 20231 accommodating wire 300 on 2023;Wire 300 is from arc wire lead-in groove
Putting in 2024, from arc wire lead-in groove 2024, landing is to wire support groove 20231, pushes pushing away of cylinder 2022 at wire
Under Dong, wire 300 is pushed into the wire of Y type wire guide plate 2011 and imports end 20111;As shown in figure 12, wire location group
Part 203 includes the wire positioning cylinder 2032 that the vertical equity being installed on edge-on bar 2031 is arranged, wire positioning cylinder 2032
Piston rod end wire located lateral plate 2033 and wire longitudinal register plate 2034 are installed.Coming of wire positioning cylinder 2032
Returning flexible, push-and-pull wire longitudinal register plate 2034, wire longitudinal register plate 2034 is inserted between two wires 300 of front end, real
The output of existing solid conductor 300.
As shown in figure 13, copper pipe conveyer device 4 includes copper pipe guidance set 401, is respectively arranged in copper pipe guidance set 401
The copper pipe of rear and front end pushes assembly 402 and copper pipe positioning component 403, and copper pipe positioning component 403 is positioned at wire positioning component 203
Underface.
As shown in Figure 13, Figure 14, copper pipe guidance set 401 include the Y type copper pipe guide plate 4011 that is installed on base plate 6 and
Assembly 4012 allocated by copper pipe, and Y type copper pipe guide plate 4011 includes that copper pipe imports end 40111 and copper pipe bifurcated derives end 40112, copper
Pipe imports end 40111 and is placed in copper pipe and pushes the side of assembly 402, and copper pipe imports the side of end 40111 with allocating groove 40113,
Copper pipe allocate assembly 4012 include being installed on allocate that in a bearing 40121, vertical equity arranges allocate cylinder 40122, point
The piston rod end dialling cylinder 40122 is provided with and allocates block 40123, allocates block 40123 and can be inserted into and allocate in groove 40113;Copper pipe
Push assembly 402 and include that the copper pipe being installed on the transverse horizontal setting that copper pipe pushes on installing rack 4021 pushes cylinder 4022, copper
Pipe pushes the piston rod end of cylinder 4022 and is provided with copper pipe and pushes 4023, and copper pipe pushes the upper end of installing rack 4021 and is provided with
The arc copper pipe lead-in groove 4024 bent diagonally downward, the lower end of arc copper pipe lead-in groove 4024 imports end 40111 towards copper pipe;
As shown in figure 15, copper pipe positioning component 403 includes the transverse baffle 4032 being installed on horizontal cross bar 4031.Copper pipe 200 is from arc
Putting in shape copper pipe lead-in groove 4024, landing to copper pipe imports in end 40111, and under copper pipe pushes the promotion of cylinder 4022,
Import end 40111 along copper pipe to enter in Y type copper pipe guide plate 4011.The setting of assembly 4012 allocated by copper pipe, is on the one hand used for
Copper pipe 200 is had certain motive force, on the other hand being fed forward for single copper pipe 200.
As shown in Fig. 1, Fig. 3 and Figure 11, resistance wire welder 3 is positioned at resistive conductor 400 lower end after bending and wire
The contact position of 300 upper ends, conductor copper pipe welder 5 is positioned at the contact position of wire 300 lower end and copper pipe 200 upper end.
As shown in Figure 11, Figure 16, resistance wire welder 3 includes the electric resistance welding being installed on resistance welding bearing 301
Connecing propelling movement cylinder 302, resistance welding pushes the piston rod end of cylinder 302 and is provided with resistance soldering tip assembly 303, resistance soldering tip group
Part 303 includes that resistance solder is inserted pipe 3031 and is installed on resistance solder and inserts the resistance high temperature melting soldering tip of pipe 3031 lower end
3032, the resistance solder of resistance high temperature melting soldering tip 3032 goes out mouth 30321 towards at contact bonding with wire 300 of resistance 100.Electricity
The resistance solder of resistance high temperature melting soldering tip 3032 goes out to be provided with high-temperature heating head in mouth 30321, when solder (graininess) enters resistance height
Time in temperature fusion welding head 3032, can become welding fluid by instant melting, welding fluid goes out from resistance solder and flows out to resistance 100 and lead mouth 30321
At the contact bonding of line 300, it is achieved wire 300 welds with resistance 100.
As shown in Figure 11, Figure 17, conductor copper pipe welder 5 includes the copper pipe weldering being installed on copper pipe welding bearing 501
Connecing propelling movement cylinder 502, copper pipe welding pushes the piston rod end of cylinder 502 and is provided with copper pipe soldering tip assembly 503, copper pipe soldering tip group
Part 503 includes that copper pipe solder is inserted pipe 5031 and is installed on copper pipe solder and inserts the copper pipe high temperature melting soldering tip of pipe 5031 lower end
5032, the copper pipe solder of copper pipe high temperature melting soldering tip 5032 goes out mouth 50321 towards at contact bonding with copper pipe 200 of wire 300.Copper
The copper pipe solder of pipe high temperature melting soldering tip 5032 goes out to be provided with high-temperature heating head in mouth 50321, when solder (graininess) enters copper pipe height
Time in temperature fusion welding head 5032, can become welding fluid by instant melting, welding fluid goes out from copper pipe solder and flows out to copper pipe 200 and lead mouth 50321
At the contact bonding of line 300, it is achieved copper pipe 200 welds with wire 300.
Embodiment provided above is the better embodiment of the present invention, is only used for the convenient explanation present invention, not to this
Bright make any pro forma restriction, any described technical field has usually intellectual, if without departing from the carried skill of the present invention
In the range of art feature, utilize the Equivalent embodiments that the done local of disclosed technology contents is changed or modified, and
Without departing from the technical characteristic content of the present invention, all still fall within the range of the technology of the present invention feature.