CN104485261B - A kind of welding method of relay tip spring assembly - Google Patents
A kind of welding method of relay tip spring assembly Download PDFInfo
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- CN104485261B CN104485261B CN201410604434.2A CN201410604434A CN104485261B CN 104485261 B CN104485261 B CN 104485261B CN 201410604434 A CN201410604434 A CN 201410604434A CN 104485261 B CN104485261 B CN 104485261B
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- welding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
Abstract
The invention discloses the welding method of a kind of relay tip spring assembly, method determined by the clamping changing original fixture, it is ensured that the requirement of every position dimension of spring pile-up；Change the welding method of traditional thin slice and sheet, using sheet as main solder side；Breach the traditional welding method welding packfong and silver magnesium nickel component with tungsten-copper alloy, chrome zirconium copper alloy, Be-Co-Cu alloy etc. as electrode material, namely weld packfong and silver magnesium nickel spring assembly with yellow gold, silver evanohm as electrode tip；Solve for a long time weld this spring assembly and the adhesion of electrode, weld metal zone temperature is too high, the problem such as prominent of splashing, and greatly reduces the phenomenon that spring assembly is burnt by electrode in welding process, crystal boundary structure changes.
Description
Technical field
The invention belongs to welding technology field, particularly relate to the welding method of a kind of relay tip spring assembly.
Background technology
Spring pile-up is very important assembly in relay, much small-sized, precision sealing relay directly adopt one end of silver magnesium nickel thin slice provide certain contact pressure directly as electric current contact and for contact, the other end of thin slice welds with seat board binding post by connecting cornerite, and welding reed and be connected between cornerite and be typically with spot welding connect, such as Fig. 5, shown in Fig. 6 and Fig. 7, including welding reed and welding cornerite, the left end of welding reed has terminals, the right-hand member of welding cornerite has seat board binding post, right-hand member contact at welding cornerite, this region is welding region.In this assembly, relative position size between part is directly connected to the performance parameter of whole product, welding cornerite directly affects the Reliability of Microprocessor of whole product with the welding quality welding reed junction, so, the stability of butt welding machine work in the welding process of this assembly, the structure and material to electrode, the structure to positioning fixture for welding and positioning precision and the requirement of the ability etc. of the problem in workman's random process welding process is all higher.
The welding equipment of conventional spring pile-up is as shown in Figure 8 and Figure 9, original position fixture has the welding groove of a shape the same as spring assembly, original position fixture welding groove edge a little has catch, the electrode mounting hole run through with welding groove is had bottom original position fixture, for the former bottom electrode assembly of blackout, and fixed by former locking nut, also have above original position fixture simultaneously former on electrode assemblie, former upper electrode assemblie can move up and down, operationally, only spring pile-up need to be placed on welding groove, then by the electrode tip point of former upper electrode assemblie at welding region, it is energized, after weak point that original welding manner is existed:
1. not having spring assembly stopper slot in positioning fixture, after assembly is soldered, welding cornerite is bad with the depth of parallelism welding reed side；
2. spring assembly in positioning fixture be adopt reed upper welding cornerite under mounting means, owing to bottom electrode face area is a powering up 2～3 times of extreme area, welding cornerite thickness is 2 times of reed thickness, Gu the heat that the heat that in welding process, reed produces with electrode relatively welds the generation of cornerite place is relatively concentrated；
3. go up electrode, the material of bottom electrode is traditional non-ferrous metal spot-wedling electrode material, electrode with weld cornerite, welding switch jaw contact face contact resistance relatively big, heat dissipating state is poor；
4. there is the phenomenon of whiting, burn on the spring assembly surface of a postwelding, and spring surface burn phenomenon relatively welds cornerite surface seriously, carries out crystal phase analysis by butt-welding fitting weld, it has been found that have grain-boundary weakness phenomenon.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of accurate positioning, convert main solder side, increase the contact area of electrode and reed, the welding method of the relay tip spring assembly of the heat-conductivity conducting of intensifier electrode, meet the demand of product batch production, reduce labor strength simultaneously, raise labour efficiency.
The present invention is achieved by the following technical programs.
The welding method of a kind of relay tip spring assembly provided by the invention, including equipment: the spring pile-up of positioning fixture, upper electrode assemblie, bottom electrode assembly and welding, wherein:
Locating clip has the installation vertical electrode hole of bottom electrode assembly, and bottom electrode assembly is fixed in the vertical electrode hole of positioning fixture by locking nut, limited location groove on positioning fixture, and vertical electrode hole connects with stopper slot；
Described spring pile-up includes welding reed and welding cornerite, and the left end of welding reed has terminals, and the right-hand member of welding cornerite has seat board binding post, and in the right-hand member contact of welding cornerite, this region is welding region；
Described upper electrode assemblie includes upper electrode tip and upper welder joint, upper electrode tip and upper welder joint are welded together by upper solder, and the material of upper solder is silver-copper brazing alloy, further, the present invention is preferred, and the material of upper electrode tip is yellow gold or silver evanohm.
Described bottom electrode assembly includes lower electrode tip and lower welder joint, lower electrode tip and lower welder joint are welded together by lower solder, and the material of lower solder is silver-copper brazing alloy, further, the present invention is preferred, and the material of lower electrode tip is yellow gold or silver evanohm.
The cross-sectional area of the lower electrode tip of described bottom electrode assembly is bigger than the cross-sectional area of the upper electrode tip of upper electrode assemblie.
Further, the present invention is preferred, and the vertical electrode hole contact internal walls place of the bottom right of described bottom electrode assembly and positioning fixture is also placed with insulation banking stop.
Its solder technology is: when welding, first the welding reed of spring pile-up is placed in stopper slot, make the bottom left snap of welding reed and stopper slot, then the welding cornerite of spring pile-up is placed in stopper slot, and weld the bottom right snap of cornerite and stopper slot, it is then turn on the power supply of electrode assemblie and bottom electrode assembly, namely completes with the welding region place of electrode component touch spring pile-up.
The technical characterstic of the present invention is in that:
1, in positioning fixture, the stopper slot of spring pile-up is increased, it is ensured that after assembly is soldered, welding cornerite flushes with the depth of parallelism welding reed side and their both sides of the edge；
2, spring assembly adopts reed at lower welding cornerite at upper mounting means in positioning fixture, increase the water conservancy diversion of bottom electrode end face and spring surface, heat-conducting area, it is made to be a powering up extreme area and 3～4 times that weld cornerite water conservancy diversion area, so, welding heat is relatively concentrated on welding cornerite (because packfong more silver-colored magnesium nickel is not likely to produce grain-boundary weakness in identical situation of being heated, moreover welding cornerite thickness is 2 times of reed thickness), reduce the heat produced between reed and electrode, increase the radiating effect between them, reed is avoided to produce the phenomenon of burning in welding process as far as possible；
3, adopt yellow gold, silver evanohm is as the electrode tip in upper/lower electrode, due to yellow gold, silver evanohm relatively other electrode material (tungsten-copper alloys, chrome zirconium copper alloy, Be-Co-Cu alloy etc.) there is better thermoplasticity, electric conductivity, heat conductivity, weldment deflection under upper/lower electrode pressure can be reduced on the one hand, enough reduce again electrode and reed, contact resistance between welding angle, make welding energy concentrate on reed to greatest extent with on the pedestal welding angle, pedestal is made fully to melt, guarantee welding core mass, on the other hand again can by electrode and reed, the heat that welding cornerite contact surface produces is taken away rapidly, reduce reed to greatest extent, the probability that welding cornerite is burnt with pole contact surface up and down；
4, the combined electrode made by upper and lower electrode, can either demonstrate,prove electrode has above welding superiority, can protect again stability when electrode is connected, reliability with welder head；
The beneficial effects of the present invention is:
1, the every position dimension having welded rear product spring assembly has been required to meet the requirement of Technology, substantially reduces batch margin of tolerance of the position dimension producing assembly, the defect that welding cornerite of overcoming over is bad with welding the reed depth of parallelism；
2, the adhesion situation of weldment and electrode tip relatively adopts the electrode of other materials to obtain and is substantially improved (needing before improvement to be disengaged with electrode tip by weldment by external force, without being disengaged with electrode by weldment by external force after improvement, namely weldment and electrode disengage naturally) again；
3, being soldered the phenomenon not whitened, burn in the surface that in rear spring assembly, reed contacts with electrode tip, weldment weld seam does not splash spilling, and fully, nugget is without hard crisp phenomenon in pedestal fusing；
4, crystal phase analysis is carried out by butt-welding fitting weld, it does not have produce grain-boundary weakness phenomenon；
5, the spring assembly of postwelding loads after in product, whole product carries out small lot checking analyze, the every technical parameter of product is satisfied by the requirement of Technology, and product carries out the destructive testings such as mechanical ageing, vibration, impact, it does not have product failure or the situation of reed fracture occur.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of the present invention.
Fig. 3 is the structural representation of electrode assemblie in the present invention.
Fig. 4 is the structural representation of bottom electrode assembly of the present invention.
Fig. 5 is the structural representation of spring assembly.
Fig. 6 is the structural representation of the welding cornerite of spring assembly.
Fig. 7 is the top view of the welding cornerite of spring assembly.
Fig. 8 is the structural representation of prior art.
Fig. 9 is the top view of prior art.
In figure: 1-positioning fixture, 2-stopper slot, the upper electrode assemblie of 3-, 4-bottom electrode assembly, 5-spring pile-up, 6-locking nut, 7-insulate banking stop, 31-upper electrode tip, the upper welder joint of 32-, the upper solder of 33-, 41-lower electrode tip, welder joint under 42-, solder under 43-, 51-welds reed, and 52-welds cornerite, 53-link, 54-binding post, 55-welding region, the original position fixture of 1a-, 2a-welding groove, the former upper electrode assemblie of 3a-, the former bottom electrode assembly of 4a-, 6a-catch, the former locking nut of 7a-.
Detailed description of the invention
Technical scheme be described further below, but described in the scope claimed is not limited to.
Present embodiment discloses the welding method of a kind of relay tip spring assembly, including equipment: the spring pile-up 5 of positioning fixture 1, upper electrode assemblie 3, bottom electrode assembly 4 and welding, wherein:
As depicted in figs. 1 and 2, positioning fixture 1 has the installation vertical electrode hole of bottom electrode assembly 4, and bottom electrode assembly 4 is fixed in the vertical electrode hole of positioning fixture 1 by locking nut 6, limited location groove 2 on described positioning fixture 1；
As shown in Fig. 5, Fig. 6 and Fig. 7, described spring pile-up 5 includes welding reed 51 and welding cornerite 52, the left end of welding reed 51 has terminals 53, the right-hand member of welding cornerite 52 has seat board binding post 54, welding cornerite 52 left end there is pedestal 522, welding cornerite 52 is contacted by the right-hand member of the pedestal 522 of left end with welding reed 51, and this region is welding region 55；
Welded together by upper solder 33 as it is shown on figure 3, described upper electrode assemblie 3 includes upper electrode tip 31 and upper welder joint 32, upper electrode tip 31 and upper welder joint 32, and the material of upper solder 33 is silver-copper brazing alloy；Further, the present embodiment is preferably: the material of upper electrode tip 31 is yellow gold or silver evanohm.
As shown in Figure 4, described bottom electrode assembly 4 is included lower electrode tip 41 and lower welder joint 42, lower electrode tip 41 and lower welder joint 42 and is welded together by lower solder 43, and the material of lower solder 43 is silver-copper brazing alloy；Further, the present embodiment is preferably: the material of lower electrode tip 41 is yellow gold or silver evanohm.
Meanwhile, as it is shown in figure 1, the cross-sectional area of the lower electrode tip 41 of described bottom electrode assembly 4 is bigger than the cross-sectional area of the upper electrode tip 31 of upper electrode assemblie 3.
Meanwhile, as it is shown in figure 1, be also placed with insulation banking stop 7 at the bottom right of bottom electrode assembly 4 with the vertical electrode hole contact internal walls place of positioning fixture 1.
When welding, first the welding reed 51 of spring pile-up 5 is placed in stopper slot 2, make the bottom left snap of welding reed 51 and stopper slot 2, then the welding cornerite 52 of spring pile-up 5 is placed in stopper slot 2, and weld the bottom right snap of cornerite 52 and stopper slot 2, it is then turn on electrode assemblie 3 and the power supply of bottom electrode assembly 4, namely completes with welding region 55 place of electrode assemblie 3 contact terminal spring assembly 5.
This weld jig changes the clamping of original fixture and determines method, it is ensured that the requirement of every position dimension of spring pile-up 5；Change the welding method (thin slice is as main solder side) of traditional thin slice and sheet, using sheet as main solder side；Breach the traditional welding method welding packfong and silver magnesium nickel component with tungsten-copper alloy, chrome zirconium copper alloy, Be-Co-Cu alloy etc. as electrode material, namely weld packfong and silver magnesium nickel spring assembly with yellow gold, silver evanohm as electrode tip；Solve for a long time weld this spring assembly and the adhesion of electrode, weld metal zone temperature is too high, the problem such as prominent of splashing, and greatly reduces the phenomenon that spring assembly is burnt by electrode in welding process, crystal boundary structure changes；Reach energy-saving and cost-reducing purpose, improve business efficiency；The spot welding non-ferrous metal aspect that is produced on of the application of this welding method and electrode has certain popularization and reference value.
Claims (7)
1. the welding method of a relay tip spring assembly, including equipment: the spring pile-up (5) of positioning fixture (1), upper electrode assemblie (3), bottom electrode assembly (4) and welding, positioning fixture (1) has installation bottom electrode assembly (4) vertically electrode hole, and bottom electrode assembly (4) is fixed in the vertical electrode hole of positioning fixture (1) by locking nut (6)；nullDescribed spring pile-up (5) includes welding reed (51) and welding cornerite (52)，The left end of welding reed (51) has terminals (53)，The right-hand member of welding cornerite (52) has seat board binding post (54)，Welding cornerite (52) left end there is pedestal (522)，Welding cornerite (52) is contacted by the right-hand member of the pedestal (522) of left end with welding reed (51)，Pedestal (522) is welding region (55) with the right-hand member contact area welding reed (51)，It is characterized in that: the upper limited location groove (2) of described positioning fixture (1)，When welding，First the welding reed (51) of spring pile-up (5) is placed in stopper slot (2)，Make the bottom left snap of welding reed (51) and stopper slot (2)，Then the welding cornerite (52) of spring pile-up (5) is placed in stopper slot (2)，And weld the bottom right snap of cornerite (52) and stopper slot (2)，It is then turn on electrode assemblie (3) and the power supply of bottom electrode assembly (4)，Namely complete with welding region (55) place of electrode assemblie (3) contact terminal spring assembly (5).
2. the welding method of relay tip spring assembly as claimed in claim 1, it is characterized in that: described upper electrode assemblie (3) includes upper electrode tip (31) and upper welder joint (32), upper electrode tip (31) and upper welder joint (32) are welded together by upper solder (33), and the material of upper solder (33) is silver-copper brazing alloy.
3. the welding method of relay tip spring assembly as claimed in claim 1, it is characterized in that: described bottom electrode assembly (4) includes lower electrode tip (41) and lower welder joint (42), lower electrode tip (41) and lower welder joint (42) are welded together by lower solder (43), and the material of lower solder (43) is silver-copper brazing alloy.
4. the welding method of relay tip spring assembly as claimed in claim 1, it is characterised in that: the cross-sectional area of the lower electrode tip (41) of described bottom electrode assembly (4) is bigger than the cross-sectional area of the upper electrode tip of upper electrode assemblie (3) (31).
5. the welding method of relay tip spring assembly as claimed in claim 2, it is characterised in that: the material of described upper electrode tip (31) is yellow gold or silver evanohm.
6. the welding method of relay tip spring assembly as claimed in claim 3, it is characterised in that: the material of described lower electrode tip (41) is yellow gold or silver evanohm.
7. the welding method of relay tip spring assembly as claimed in claim 3, it is characterised in that: the vertical electrode hole contact internal walls place of the bottom right of described bottom electrode assembly (4) and positioning fixture (1) is also placed with insulation banking stop (7).
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| CN201410604434.2A CN104485261B (en) | 2014-10-30 | 2014-10-30 | A kind of welding method of relay tip spring assembly |
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| CN201410604434.2A CN104485261B (en) | 2014-10-30 | 2014-10-30 | A kind of welding method of relay tip spring assembly |
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| CN104485261B true CN104485261B (en) | 2016-07-06 |
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| CN108646063A (en) * | 2018-05-29 | 2018-10-12 | 贵州天义电器有限责任公司 | A kind of electric parameter for device in sealing contact detects fixture |
| CN109192607A (en) * | 2018-09-18 | 2019-01-11 | 贵州天义电器有限责任公司 | A kind of welding structure of relay contacts spring assembly |
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| CN203236106U (en) * | 2013-04-15 | 2013-10-16 | 苏州优声电子科技有限公司 | Driving rod welding device applied to sound receiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09220673A (en) * | 1996-02-14 | 1997-08-26 | Mitsubishi Motors Corp | Metal sheet weld joining structure and metal sheet weld joining method |
| JP4543823B2 (en) * | 2004-08-23 | 2010-09-15 | Ｊｆｅスチール株式会社 | Resistance spot welding method |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1036526A (en) * | 1988-02-25 | 1989-10-25 | 梅兰日兰公司 | The preparation method of composite component and with the contact part of the made band contact chip of this method |
| CN2746500Y (en) * | 2004-11-12 | 2005-12-14 | 乐清市东星电器有限公司 | Electric contact and welding electrode for welding electric contact |
| CN101402153A (en) * | 2008-09-05 | 2009-04-08 | 广州（从化）亨龙机电制造实业有限公司 | Electric resistance welding process for welding contact and welding electrode thereof |
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