CN103506754A - Jointed technology and die applied to jointed process of metal strips used in through ground wires - Google Patents
Jointed technology and die applied to jointed process of metal strips used in through ground wires Download PDFInfo
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- CN103506754A CN103506754A CN201310334033.5A CN201310334033A CN103506754A CN 103506754 A CN103506754 A CN 103506754A CN 201310334033 A CN201310334033 A CN 201310334033A CN 103506754 A CN103506754 A CN 103506754A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
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Abstract
Currently, the metal strips used for through ground wires are jointed in an electric resistance welding or argon arc welding mode, and the jointed mode has the defects that welding joints are incomplete and concave, gaps exist in the edges of the welding joints, and the jointed positions of the jointed metal strips are insufficient in tensile strength. A die special for cold pressing welding is utilized, and a jointed technology applied to the jointed process of metal strips used in the through ground wire is adopted, the jointed technology includes the steps that firstly, the metal strips are preprocessed before being welded, then, a cold pressing welding machine of the proper model and a welding die matched with the cold pressing welding machine are selected, a joint to be welded is placed in the die, multiple cold pressing welding operations are conducted after correction and alignment, eventually, annealing process is conducted at the joint position, and then the strength of the jointed positions of the jointed metal strips is basically equal to the strength of base metal. Except the joint position, redundant rough selvedge protrusions do not have the situations such as deformation and corrosion. The resistance and conductive performance at the joint position does not change compared with the resistance and conductive performance of the base metal. In addition, the jointed technology is low in jointed cost and short in jointed time.
Description
Technical field
The present invention relates to a kind of mould and the technique that processing is processed, specifically a kind of continue technique and mould that is applied in Through ground wire sheet metal strip handshaking procedure used for the processing processing procedure of sheet metal strip.
Background technology
In the construction of high-speed railway, requirement is laid Through ground wire along trunk railway total length, guarantee that between each systems such as communication, signal, electric power, traction, power supply and equipment, realizing equipotential connects, eliminate between distinct device and system due to the electromagnetic interference that exists potential difference to cause with to the potential safety hazard that the person and equipment cause, guarantee system equipment security of operation, stable, reliable.
The sheath material of the Through ground wire using is at present brass alloys band, and the production length of this brass alloys band in actual production process is generally 600 meters of left and right, and the production length of the alloy ground wire using is generally 2000 meters or 3000 meters of left and right.For brass band and alloy ground wire are adapted, must continue to meet production and application requirement to brass band.The continuation method adopting at present, is mainly two kinds of modes of electric resistance welding or argon arc welding.These two kinds of modes all can not guarantee connecting quality, and it is mainly manifested in, and weld seam is imperfect, weld seam has depression and weld edge is jagged.Therefore when the brass alloys band to after continuing indulge bag distortion, in the weldering of vertical packet interface and process, easily in brass alloys Dai junction, there is hole, and then in tube reducing drawing process, due to this existence of locating hole, make mechanical strength little, easy fracture.In addition, adopt the continuation method of electric resistance welding or argon arc welding, the time used of often continuing once is at least wanted 40 minutes, has seriously reduced production efficiency.
Summary of the invention
For solving the technical problem of above-mentioned existence, the object of the present invention is to provide a kind of continue technique and mould that is applied in Through ground wire sheet metal strip handshaking procedure used.By this technique and use this mould to carry out Cold welding to metal tape and continue of continuing, the intensity of the place's of continuing part of the metal tape after resulting continuing equates substantially with the intensity of mother metal; Joint is except having unnecessary burr projection, the situation of not being out of shape, being corroded; The resistance of joint and electric conductivity are compared with mother metal also and are not changed.
The present invention solves the technical scheme that its technical problem takes: a kind of technique that continues that is applied in Through ground wire sheet metal strip handshaking procedure used, is characterized in that this technique comprises the following steps:
Before a, welding, the joint to be welded of sheet metal strip is carried out to cleannes and smoothness processing;
B, according to the section of different metal band, select welding equipment, by cold press welder model and supporting weld mold, determine welding pressure;
C, weld mold is inserted in the termination to be welded of sheet metal strip, require the joint of the sheet metal strip of butt welding to stretch into the center of mold cavity, and these two joints to be continued that align;
D, press gently the pressure handle of welding machine, with leveling metal strip material and analyzing adapter, whether align, and pressure handle is placed in to extreme higher position;
E, press pressure handle, pressure handle is exerted pressure continuously and to least significant end, completed Yi Ci top and weld by highest position, the number of times of exerting pressure is 3 to 5 times, and the welding pressure of guaranteeing to weld latter stage is greater than the welding pressure at welding initial stage;
F, the sheet metal strip after welding is taken out from mould, and remove the burr of sheet metal strip joint;
G, the joint of sheet metal strip is fixed on above the electrode of annealing machine, and will anneals current settings at 30 to 100 amperes according to the lateral cross section area of joint, annealing time is set as 3 to 10 seconds.
Further, in step a, the cleannes of the joint to be welded of described sheet metal strip require to reach without oil film, room moisture film, without other organic impurities, and its processing mode is chemical solvent cleaning or ultrasonic purification or removes with the wire brush in mechanical means, gauze/sand paper or file.
Further, in step a, described smoothness requires to reach Ra≤3.2 μ m.
Further, in step e, the pressure handle of selected cold press welder is driven by the electric hydraulic pump of can produce >=20 tons of crimp forces.
The weld mold that uses in above-mentioned technical process, comprises halfbody one and halfbody two, wherein the structure of halfbody one and halfbody two identical and both be arranged symmetrically with; Described halfbody one comprises upper left module and upper right module, halfbody two comprises lower-left module and bottom right module, and the structure of described upper left module, upper right module, lower-left module and bottom right module is identical, described upper left module and upper right module, described lower-left module and bottom right module are symmetrical arranged respectively; Described each module is provided with a plurality of major axis pin-and-holes that extend along left and right directions and a plurality of minor axis pin-and-hole extending along the vertical direction; Between described upper left module and upper right module, be flexibly connected by major axis pin respectively between described lower-left module and bottom right module, on the outer cylinder of major axis pin, suit plays the spring of rebound effect; Between described upper left module and lower-left module, be flexibly connected by stub axle pin respectively between described upper right module and bottom right module, on the outer cylinder of stub axle pin, suit plays the spring of rebound effect.
On each module end face of forward surface that is positioned at described halfbody one and described halfbody two, be provided with the U-shaped groove that left and right directions extends, and the grooved bottom surface of described U-shaped groove is plane; At the left surface of right flank, the left surface at turning, module lower-left, described upper right, the right flank at the turning, upper right of described lower-left module and the described bottom right module upper left corner at the turning, bottom right of described upper left module, be respectively equipped with another that extend to each turning and form the groove of face.
While combining and making them to be in contact with one another separately each module: it is a rectangular through-hole that the U-shaped groove in described upper left module coordinates with U-shaped groove in the module of described lower-left, it is a rectangular through-hole that U-shaped groove in the module of described upper right also coordinates with U-shaped groove in the module of described bottom right, and the central axis of two rectangular openings point-blank overlaps; The groove combination of described each corner becomes a penetrating cavity in the vertical direction; Described halfbody Yi upper surface, described halfbody Er lower surface are all the V-type face that blind end is plane;
Also comprise two module actuating members that structure is identical, the bottom land that the medial surface of described module actuating member is provided with V-type groove and this V-type groove is plane;
The V-type groove of two described module actuating members coordinates with described halfbody Yi upper surface or described halfbody Er lower surface respectively, and the angle of inclination, inclined-plane of described upper surface and described lower surface is consistent with the angle of inclination of the inclined trough surface of corresponding V-type groove.
Further, when each module is combined and be in contact with one another separately, the Kong Gaowei 1mm of the rectangular through-hole that the rectangular through-hole that the U-shaped groove in the U-shaped groove in described upper left module and described lower-left module fits in and the U-shaped groove in the module of described upper right and the U-shaped groove in the module of described bottom right fit in, hole width is between 10mm to 50mm.
The invention has the beneficial effects as follows: take the intensity of the place's of continuing part of this metal tape after continuing that technique is resulting and continuing of colding pressing substantially to equate with the intensity of mother metal; Joint is except having unnecessary burr projection, the situation of not being out of shape, being corroded; The resistance of joint and electric conductivity are compared with mother metal also and are not changed, and meet instructions for use; In addition the cost that continues of this technique is low, and the complete connection time used is short, has improved the economic benefit continuing.
Accompanying drawing explanation
Fig. 1 is that the sheet metal strip the present invention relates to is arranged on the schematic diagram on cold press welder by mould;
Fig. 2 is each module of mould in the present invention schematic diagram under closed contact condition;
Fig. 3 is each module of mould in the present invention schematic diagram under discrete state;
Fig. 4 is the schematic diagram of the module actuating member of mould in the present invention;
Fig. 5 is that in Fig. 1, A is in the enlarged diagram while not depressing pressure handle;
Fig. 6 is the repeated multiple times enlarged diagram of depressing after pressure handle in A place in Fig. 1;
Fig. 7 be sheet metal strip mother metal, welding point place cross section metallograph and welding after be with deckle-edged metallographic analysis diagram
In figure: 1 mould, 11 halfbody one, 111 upper left module ，112 upper right modules, 113 upper surfaces, 12 halfbody two module ，122 bottom right, ，121 lower-left modules, 123 lower surfaces, 13U type groove, 14 cavitys, 15 major axis pins, 151 major axis pin-and-holes, 16 stub axle pin, 161 minor axis pin-and-holes, 17 springs, 2 sheet metal strips, 21 welding dregs, 3 cold press welders, 31 pressure handles, 32 module actuating members, 321V type groove.
The specific embodiment
For ease of further understanding technology contents of the present invention, below in conjunction with accompanying drawing, the invention will be further described.
It should be noted that; the noun of locality using when described mould is described is as " left side ", " right side "; " on ", equal upper and lower in accompanying drawing 3, accompanying drawing 5 or accompanying drawing 6 of D score; left and right orientation is corresponding; and the vertical direction of using refers to the direction perpendicular to the drawing of accompanying drawing 3, accompanying drawing 5 or accompanying drawing 6; its objective is conveniently the architectural feature of mould is explained, so can not be as the restriction of this body structure of mould is affected to protection domain.Mentioned sheet metal strip 2 refers to brass band, but and is not precluded within metal beyond brass band or the use on alloy strip steel rolled stock.
The technique that continues of Through ground wire sheet metal strip handshaking procedure used, this technique comprises before welding, and the joint to be welded of sheet metal strip 2 is carried out to cleannes and smoothness processing.
The cleannes of the joint to be welded of described sheet metal strip 2 require to reach without oil film, without moisture film, without other organic impurities, if deposit these materials, before welding, must remove; Sweep-out method can be selected chemical method or physics mode, as cleaning or use ultrasonic purification with chemical solvent or with the wire brush in mechanical means, gauze/sand paper or file removing etc.; Joint surface after having cleared up does not allow to exist leaves over residue or oxide-film powder, and the surface after cleaning bans the use of hand and touches and pollute, and termination to be welded is once cleaning welding as early as possible.Described smoothness requires to reach Ra≤3.2 μ m.
In welding process, plastic deformation degree is to realize the required minimum amount of plastic deformation of Cold welding, become " deformation extent ", it is the key parameter of controlling welding quality, and during extruding, metal interface must have enough plastic flow momentum could obtain high-quality joint.Plastic deformation is required to meet the oxide layer of destroying interface by sizable deflection, makes oxide layer and other impurity extrude combination interface; By plastic deformation, overcoming the unevenness at interface, is the close contact that the soldered surface cleaned reaches atomic distance, forms intergranular and engages.
In welding process, the welding pressure applying is external energy unique in Cold welding process.It is delivered to position to be welded by mould 1, makes soldered position produce plastic deformation.According to the cross-sectional area of different metal band 2, impose different energy, generally weld latter stage required welding pressure than large many of the welding pressure at welding initial stage.This pressure is the required energy of sheet metal strip 2 welding, and this energy transmits by weld mold (being mould 1).Therefore, the project organization of mould 1, size are very large on the impact of the pressure of welding, and this is most important concerning the designer of Cold welding, and it directly affects the success or not of welding.But for the user, appropriate as long as cold press welder is selected, the matching die 1 of use is just sizing also, as long as pressure is enough abundant, can realize welding, and itself and operative skill are without large relation.
Therefore, the sheet metal strip 2 of corresponding varying cross-section (being section) selects the cold press welder 3 of different model most important.
As Fig. 1, Fig. 5 or Fig. 6 by the two ends to be welded of two strip metal bands 2 respectively from left to right or right-to-left insert weld mold (being mould 1), two joints of two strip metal bands 2 of requirement butt welding pass respectively the jaw on the mould corresponding with it and stretch into the center of mould 1 die cavity, and these two joints to be continued that align; Guarantee positioning precision, make jaw reach best to the chucking power of sheet metal strip 2, avoid band, in extruding welding process, skidding occurs and cause welding unsuccessfully.
The welding pressure that welds latter stage is greater than the problem of the welding pressure at welding initial stage, and hydraulic Cold welding is by program assurance, and the electric hydraulic pump of hydraulic cold press welder preferably guarantees to produce the crimp force of >=20 tons, and this crimp force acts on pressure handle 31; Type hand pressure armrest handle Position Control, handle position reaches end of travel, and pressure reaches maximum.
Simultaneously according to sheet metal strip 2 cross-sectional area, guarantee to stretch into the length of mould 1 die cavity.The length that sheet metal strip 2 stretches into mould 1 die cavity must guarantee, makes faying face place plastic deformation amount of flow not enough if too short, causes bond strength inadequate; If oversize, will cause sheet metal strip 2 bendings, cause and weld unsuccessfully.
Finally, the joint of sheet metal strip 2 is fixed on above the electrode of annealing machine, and according to the lateral cross section of joint (being section) area by a certain value of annealing current settings between 30 to 100 amperes, annealing time is set as 3 to 10 seconds.
Adopt above-mentioned technique to complete once to continue the time used to be no more than three minutes, improved efficiency.
As shown in Figure 7, wherein (a) is the metallograph of the cross section of brass band mother metal, (b) be the metallograph of the cross section of the welding point of welding procedure after processing, the place of continuing of the metal tape that by (a) and (b) can finding out takes to cold pressing after continuing that technique is resulting and continuing intensity partly equates substantially with the intensity of mother metal; (c) for being with deckle-edged metallographic analysis diagram after welding, by this figure, can find out joint except having unnecessary burr projection, the situation of not being out of shape, being corroded; .
Table one is the mechanical and physical performance table of comparisons of brass band before and after continuing:
Table one
| Sequence number | Project | Unit | Specification requirement | Brass band mother metal | Place's joint continues |
| 1 | 20 ℃ of specific insulations | Ω·mm 2/m | 0.09 | 0.07 | 0.07 |
| 2 | Tensile strength | Mpa | 260 | 380 | 390 |
| 3 | Elongation at break | % | 25 | 38 | 33 |
The resistance of the data declaration joint of table one and electric conductivity are not compared with mother metal yet and are changed, and hot strength and percentage of elongation all meet instructions for use.
As shown in Figures 2 to 6, for applying weld mold (being mould) in above-mentioned technique, it comprises halfbody 1 and halfbody 2 12, wherein the structure of halfbody 1 and halfbody 2 12 identical and both be arranged symmetrically with.Described halfbody 1 comprises upper left module 111He upper right module 112, halfbody 2 12 comprises module 121He bottom right, lower-left module 122, and the structure of module 121Ji bottom right, module 112, lower-left, described upper left module 111, upper right module 122 is identical, described upper left module 111Yu upper right module 112, module 121Yu bottom right, described lower-left module 122 are symmetrical arranged respectively.
Described each module (referring to module 121Ji bottom right, module 112, lower-left, upper left module 111, upper right module 122) is provided with a plurality of major axis pin-and-holes 151 that extend along left and right directions and a plurality of minor axis pin-and-hole 161 extending along the vertical direction; Described major axis pin-and-hole 151 is used for coordinating installs major axis pin 15, and described minor axis pin-and-hole 161 is used for coordinating installation stub axle pin 16; Described upper left module 111Yu upper right module 112 has the major axis pin 15 of spring 17 to be flexibly connected by cover; Module 121Yu bottom right, described lower-left module 122 has the major axis pin 15 of spring 17 to be flexibly connected by cover; Described upper left module 111Yu lower-left module 121 has the stub axle pin 16 of spring 17 to be flexibly connected by cover; Module 112Yu bottom right, described upper right module 122 has the stub axle pin 16 of spring 17 to be flexibly connected by cover; The spring 17 being sleeved in described major axis pin 15 and described stub axle pin 16 all plays rebound effect.
On the end face of each module of forward surface that is positioned at described halfbody 1 and halfbody 2 12, be equipped with the U-shaped groove 13 that left and right directions extends, and the grooved bottom surface of described U-shaped groove 13 is plane.
At the right flank at the right flank at turning, described upper left module 111 bottom right, the left surface at turning, module 112 lower-left, described upper right, turning, module 121 upper right, described lower-left and the left surface of described bottom right module 122 upper left corner, be respectively equipped with another that extend to each turning and form the groove of face.
Each module is combined and pressed when they are in contact with one another separately: it is a rectangular through-hole that the U-shaped groove 13 in described upper left module 111 coordinates with U-shaped groove 13 in described lower-left module 121, and it forms the jaw of the mould 1 described in above-mentioned technical process; It is a rectangular through-hole that U-shaped groove 13 in described upper right module 112 also coordinates with U-shaped groove 13 in described bottom right module 122, and similarly, it also forms the jaw of the mould 1 described in above-mentioned technical process; And the central axis of two rectangular through-hole point-blank overlaps.Described each turning (refers to turning, described upper left module 111 bottom right, turning, module 112 lower-left, described upper right, turning, module 121 upper right, described lower-left, described bottom right module 122 upper left corner) groove combination of locating become one in the vertical direction penetrating this cavity 14 of cavity 14(be the die cavity of mould 1), its effect is the length (being the length that sheet metal strip 2 stretches into mold cavity) of the termination of continuing of the sheet metal strip 2 for being used for guaranteeing continuing, to guarantee having enough moulding deflections, this cavity 14 is also used for discharging the welding dregs 21 that produce in Cold welding process.Described halfbody Yi11 upper surface 113, described halfbody Er12 lower surface 123 are the V-type face that blind end is plane.
When each module is combined and be in contact with one another separately, the Kong Gaowei 1mm of the rectangular through-hole that the rectangular through-hole that the U-shaped groove in the U-shaped groove in described upper left module 111 and described lower-left module 121 fits in and the U-shaped groove in described upper right module 112 and the U-shaped groove in described bottom right module 122 fit in, hole width is between 10mm to 50mm.
Because due to processing technology, in the described upper left module 111 upper right corner, the upper left corner of described upper right module, the lower right corner of described lower-left module and the lower left corner of described bottom right module is respectively equipped with fillet, so the center of the median surface of the above-mentioned 113Ji lower surface, V-shaped Mian upper surface 123 forming has a little groove, it does not form looking and be the restriction of the V-type face of plane for blind end in described upper surface 113 and described lower surface 123 main bodys.
Described mould 1 also comprises two module actuating members 32 that structure is identical, and as shown in Figure 4, the bottom land that the medial surface of described module actuating member 32 is provided with V-type groove 321 and this V-type groove 321 is plane.
As shown in Figure 5 and Figure 6, the V-type groove of two described module actuating members 32 matches with described halfbody Yi11 upper surface 113 or described halfbody Er12 lower surface 123 respectively, and it is consistent with the angle of inclination of the inclined trough surface of described V-type groove 321 to form the angle of inclination on described upper surface 113 or 123 inclined plane, described lower surface.
During use, as shown in Fig. 1 and Fig. 5, Fig. 6, first module actuating member 32 is arranged on cold press welder 3, after each module being combined simultaneously, is arranged on cold press welder 3 and coordinates with the V-type groove of described module actuating member 32; Then two sheet metal strips 2 to be continued are penetrated by the notch of U-shaped groove 13 of left end and the notch of the U-shaped groove 13 of right-hand member respectively, and guarantee that the continued access end for the treatment of of described two sheet metal strips 2 is positioned at the center of described mould 1; Now, owing to being sleeved on the effect of the spring 17 in major axis pin 15 and stub axle pin 16, described each module is each other from the not contact of, each mating surface.
The pressure handle 31(that presses described cold press welder 3 downwards acts on welding pressure), welding pressure reaches each module by described module actuating member 32, the relative halfbody 2 12 being comprised of module 121Yu bottom right, lower-left module 122 of halfbody 1 being comprised of upper left module 111Yu upper right module 112 is moved up and down, and then will penetrate sheet metal strip 2 clampings of described U-shaped groove 13; Meanwhile, also make respectively between upper left module 111Yu upper right module 112, relatively move left and right between module 121Yu bottom right, lower-left module 122, and then drive respectively corresponding sheet metal strip 2 or be moved to the left (even if the joint of sheet metal strip is in opposite directions by middle mobile) to the right, bidirectional pressing makes the joint of sheet metal strip complete Cold welding by friction and Extrusion, and the end of two sheet metal strips 2 is pressed together.After removing welding pressure, be set under the effect of the spring 17 in major axis pin 15 and stub axle pin 16, described each module disengages each other.
Claims (6)
1. be applied in the technique that continues of Through ground wire sheet metal strip handshaking procedure used, it is characterized in that this technique comprises the following steps:
Before a, welding, the joint to be welded of sheet metal strip is carried out to cleannes and smoothness processing;
B, according to the section of different metal band, select welding equipment, by cold press welder model and supporting weld mold, determine welding pressure;
C, weld mold is inserted respectively in the termination to be welded of two strip metal bands, require two joints of two strip metal bands of butt welding respectively through each self-corresponding jaws of mold and stretch into the center of mold cavity, and these two joints to be continued that align;
D, press gently the pressure handle of welding machine, with leveling metal strip material and analyzing adapter, whether align, and pressure handle is placed in to extreme higher position;
E, press pressure handle, pressure handle is exerted pressure continuously and to least significant end, completed Yi Ci top and weld by highest position, the number of times of exerting pressure is 3 to 5 times, and the welding pressure of guaranteeing to weld latter stage is greater than the welding pressure at welding initial stage;
F, the sheet metal strip after welding is taken out from mould, and remove the burr of sheet metal strip joint;
G, the joint of sheet metal strip is fixed on above the electrode of annealing machine, and will anneals current settings at 30 to 100 amperes according to the lateral cross section area of joint, annealing time is set as 3 to 10 seconds.
2. the technique that continues that is applied in Through ground wire sheet metal strip handshaking procedure used according to claim 1, it is characterized in that: in step a, the cleannes of the joint to be welded of described sheet metal strip require to reach without oil film, without moisture film, without other organic impurities, and its processing mode is chemical solvent cleaning or ultrasonic purification or removes with the wire brush in mechanical means, gauze/sand paper or file.
3. the technique that continues that is applied in Through ground wire sheet metal strip handshaking procedure used according to claim 1, is characterized in that: in step a, described smoothness requires to reach Ra≤3.2 μ m.
4. according to the technique that continues that is applied in Through ground wire sheet metal strip handshaking procedure used described in any one in claims 1 to 3, it is characterized in that: in step e, the pressure handle of selected cold press welder is driven by the electric hydraulic pump of can produce >=20 tons of crimp forces.
5. the weld mold that uses in claim 1 to 4, is characterized in that:
Comprise halfbody one and halfbody two, wherein the structure of halfbody one and halfbody two identical and both be arranged symmetrically with;
Described halfbody one comprises upper left module and upper right module, halfbody two comprises lower-left module and bottom right module, and the structure of described upper left module, upper right module, lower-left module and bottom right module is identical, described upper left module and upper right module, described lower-left module and bottom right module are symmetrical arranged respectively;
Described each module is provided with a plurality of major axis pin-and-holes that extend along left and right directions and a plurality of minor axis pin-and-hole extending along the vertical direction;
Between described upper left module and upper right module, be flexibly connected by major axis pin respectively between described lower-left module and bottom right module, on the outer cylinder of major axis pin, suit plays the spring of rebound effect;
Between described upper left module and lower-left module, be flexibly connected by stub axle pin respectively between described upper right module and bottom right module, on the outer cylinder of stub axle pin, suit plays the spring of rebound effect;
On each module end face of forward surface that is positioned at described halfbody one and described halfbody two, be provided with the U-shaped groove that left and right directions extends, and the grooved bottom surface of described U-shaped groove is plane;
At the left surface of right flank, the left surface at turning, module lower-left, described upper right, the right flank at the turning, upper right of described lower-left module and the described bottom right module upper left corner at the turning, bottom right of described upper left module, be respectively equipped with another that extend to each turning and form the groove of face;
While combining and making them to be in contact with one another separately each module
It is a rectangular through-hole that U-shaped groove in described upper left module coordinates with U-shaped groove in the module of described lower-left, it is a rectangular through-hole that U-shaped groove in the module of described upper right also coordinates with U-shaped groove in the module of described bottom right, and the central axis of two rectangular openings point-blank overlaps;
The groove combination of described each corner becomes a penetrating cavity in the vertical direction;
Described halfbody Yi upper surface, described halfbody Er lower surface are all the V-type face that blind end is plane;
Also comprise two module actuating members that structure is identical, the bottom land that the medial surface of described module actuating member is provided with V-type groove and this V-type groove is plane;
The V-type groove of two described module actuating members coordinates with described halfbody Yi upper surface or described halfbody Er lower surface respectively, and the angle of inclination, inclined-plane of described upper surface and described lower surface is consistent with the angle of inclination of the inclined trough surface of corresponding V-type groove.
6. weld mold according to claim 5, it is characterized in that: when each module is combined and be in contact with one another separately, the Kong Gaowei 1mm of the rectangular through-hole that the rectangular through-hole that the U-shaped groove in the U-shaped groove in described upper left module and described lower-left module fits in and the U-shaped groove in the module of described upper right and the U-shaped groove in the module of described bottom right fit in, hole width is between 10mm to 50mm.
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|---|---|---|---|
| CN201310334033.5A CN103506754B (en) | 2013-08-02 | 2013-08-02 | Die applied to jointed process of metal strips used in through ground wires |
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|---|---|---|---|
| CN201310334033.5A CN103506754B (en) | 2013-08-02 | 2013-08-02 | Die applied to jointed process of metal strips used in through ground wires |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548981A (en) * | 2018-06-01 | 2019-12-10 | 镇江龙源铝业有限公司 | method for connecting ultra-narrow aluminum strips by cold-pressing welding |
| CN111940597A (en) * | 2020-07-04 | 2020-11-17 | 淮南巧天机械设备技术有限公司 | Splicing type stamping die |
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| CN102315013A (en) * | 2011-05-27 | 2012-01-11 | 辽宁欣泰股份有限公司 | Foil-type coiling machine with cold pressure welding device |
| CN102686756A (en) * | 2009-10-23 | 2012-09-19 | 挪威钛组件公司 | Method for production of titanium welding wire |
| CN203426616U (en) * | 2013-08-02 | 2014-02-12 | 济南瑞通铁路电务有限责任公司 | Die applied to cold-pressing splicing process of metal strip used for run-through grounding line |
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| US20060163321A1 (en) * | 2003-06-02 | 2006-07-27 | Yasushi Hasegawa | Liquid phase diffusion welding method for metallic machine part and metallic machine part |
| CN102686756A (en) * | 2009-10-23 | 2012-09-19 | 挪威钛组件公司 | Method for production of titanium welding wire |
| CN102315013A (en) * | 2011-05-27 | 2012-01-11 | 辽宁欣泰股份有限公司 | Foil-type coiling machine with cold pressure welding device |
| CN203426616U (en) * | 2013-08-02 | 2014-02-12 | 济南瑞通铁路电务有限责任公司 | Die applied to cold-pressing splicing process of metal strip used for run-through grounding line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110548981A (en) * | 2018-06-01 | 2019-12-10 | 镇江龙源铝业有限公司 | method for connecting ultra-narrow aluminum strips by cold-pressing welding |
| CN111940597A (en) * | 2020-07-04 | 2020-11-17 | 淮南巧天机械设备技术有限公司 | Splicing type stamping die |
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| CN103506754B (en) | 2015-03-25 |
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