CN104485261A - Welding method for relay contact reed assembly - Google Patents
Welding method for relay contact reed assembly Download PDFInfo
- Publication number
- CN104485261A CN104485261A CN201410604434.2A CN201410604434A CN104485261A CN 104485261 A CN104485261 A CN 104485261A CN 201410604434 A CN201410604434 A CN 201410604434A CN 104485261 A CN104485261 A CN 104485261A
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- welding
- assembly
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- spring
- silver
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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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Welding (AREA)
Abstract
The invention discloses a welding method for a relay contact reed assembly. According to the welding method, a clamping method of an original clamp is changed, and dimension requirements for each position of the contact reed assembly are guaranteed; a traditional welding method of a thin piece and a thick piece is changed, and the thick piece is taken as a main welding face; a traditional welding method employing tungsten copper alloy, chromium zirconium copper alloy and beryllium cobalt copper alloy as electrode materials to weld nickel silver and a silver magnesium nickel assembly is changed, and silver copper alloy and silver chromium alloy are taken as electrode tips to weld the nickel silver and the silver magnesium nickel reed assembly; problems of overhigh temperature of bonding and welding areas of the reed assembly and an electrode in a long term are solved, and burn damage to the reed assembly caused by the electrode in a welding process and crystal boundary organization change are greatly reduced.
Description
Technical field
The invention belongs to welding technology field, particularly relate to a kind of welding method of relay tip spring assembly.
Background technology
Spring pile-up is very important assembly in relay, much small-sized, one end of silver-colored magnesium nickel thin slice is directly adopted directly to provide certain contact as electric current contact and for contact in precision sealing relay, the other end of thin slice welds with seat board binding post by connecting cornerite, and normally adopt spot welding to connect at contact spring with being connected between cornerite, as Fig. 5, shown in Fig. 6 and Fig. 7, comprise contact spring and welding cornerite, the left end of contact spring has terminals, the right-hand member of welding cornerite has seat board binding post, in the right-hand member contact of welding cornerite, this region is welding region.Relative position size in this assembly between part is directly connected to the performance parameter of whole product, the welding quality of welding cornerite and contact spring junction directly affects the Reliability of Microprocessor of whole product, 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 all higher to the requirement of the ability of the problem in workman's random process welding process etc.
The welding equipment of conventional spring pile-up 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, above original position fixture, also has former top electrode assembly simultaneously, former top electrode assembly can move up and down, operationally, only spring pile-up need be placed on welding groove, then by the electrode tip point of former top electrode assembly at welding region, be energized, after weak point that original welding manner is existed:
1. do not have spring assembly stopper slot in positioning fixture, the depth of parallelism that assembly is soldered rear welding cornerite and contact spring side is bad;
2. spring assembly in positioning fixture be adopt reed upper welding cornerite under mounting means, due to 2 ~ 3 times that bottom electrode face area is top electrode end area, welding cornerite thickness is 2 times of reed thickness, Gu comparatively to weld the heat that cornerite place produces more concentrated for the heat that in welding process, reed and electrode produce;
3. the material of top electrode, bottom electrode is traditional non-ferrous metal spot-wedling electrode material, electrode with weld cornerite, contact spring contact-making surface contact resistance comparatively large, 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 comparatively welds cornerite surface seriously, carries out crystal phase analysis, find that there is grain-boundary weakness phenomenon by butt-welding fitting weld.
Summary of the invention
For solving the problems of the technologies described above, 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, comprises equipment: the spring pile-up of positioning fixture, top electrode assembly, bottom electrode assembly and welding, wherein:
Locating clip has installs the 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 is communicated with stopper slot;
Described spring pile-up comprises contact spring and welding cornerite, and the left end of contact spring 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 top electrode assembly comprises 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-colored evanohm.
Described bottom electrode assembly comprises 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-colored evanohm.
The cross-sectional area of the lower electrode tip of described bottom electrode assembly is larger than the cross-sectional area of the upper electrode tip of top electrode assembly.
Further, the present invention is preferred, and the bottom right of described bottom electrode assembly and the vertical electrode hole contact internal walls place of positioning fixture are 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, then connect the power supply of top electrode assembly and bottom electrode assembly, namely complete with the welding region place of electrode component touch spring pile-up.
Technical characterstic of the present invention is:
1, in positioning fixture, increase the stopper slot of spring pile-up, guarantee that assembly is soldered rear welding cornerite and flushes with their both sides of the edge with the depth of parallelism of contact spring side;
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 top electrode end area and 3 ~ 4 times that weld cornerite water conservancy diversion area, so, welding heat is comparatively concentrated on welding cornerite (because packfong more silver-colored magnesium nickel not easily produces 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, avoid reed in welding process, produce the phenomenon of burning 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 comparatively other electrode material (tungsten-copper alloys, chrome zirconium copper alloy, Be-Co-Cu alloy etc.) there is better thermoplasticity, conductivity, thermal conductivity, the deflection of weldment under upper/lower electrode pressure can be reduced on the one hand, enough reduce electrode and reed again, contact resistance between welding angle, welding energy is made to concentrate on reed to greatest extent with on the pedestal welding angle, pedestal is fully melted, guarantee to weld core mass, on the other hand again can by electrode and reed, the heat that welding cornerite contact-making surface produces is taken away rapidly, reduce reed to greatest extent, the possibility that welding cornerite and up and down pole contact-making surface are burnt,
4, by the combined electrode that upper and lower electrode is made, can either demonstrate,prove electrode has above welding superiority, can protect again stability, reliability when electrode is connected with welder head;
Beneficial effect 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, to substantially reduce batch the margin of tolerance of the position dimension producing assembly, overcomes over and welds cornerite and the bad defect of the contact spring depth of parallelism;
2, the adhesion situation of weldment and electrode tip comparatively adopts the electrode of other materials to obtain greatly to improve and (needs before improvement weldment and electrode tip to be thrown off by external force, without the need to weldment and electrode being thrown off by external force after improvement, namely weldment and electrode are thrown off naturally again);
3, be soldered the phenomenon not whitening, 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, carry out crystal phase analysis by butt-welding fitting weld, do not produce grain-boundary weakness phenomenon;
5, the spring assembly of postwelding loads after in product, small lot check analysis is carried out to whole product, the every technical parameter of product all meets the requirement of technology, product is carried out to the destructive testings such as mechanical aging, vibration, impact, does not occur the situation of product failure or reed fracture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is vertical view of the present invention.
Fig. 3 is the structural representation of top electrode assembly of 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 vertical view of the welding cornerite of spring assembly.
Fig. 8 is the structural representation of prior art.
Fig. 9 is the vertical view of prior art.
In figure: 1-positioning fixture, 2-stopper slot, 3-top electrode assembly, 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 top electrode assembly of 3a-, the former bottom electrode assembly of 4a-, 6a-catch, the former locking nut of 7a-.
Embodiment
Further describe technical scheme of the present invention below, but described in claimed scope is not limited to.
Present embodiment discloses a kind of welding method of relay tip spring assembly, comprise equipment: the spring pile-up 5 of positioning fixture 1, top electrode assembly 3, bottom electrode assembly 4 and welding, wherein:
As depicted in figs. 1 and 2, positioning fixture 1 has installs 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, limited location groove 2 on described positioning fixture 1;
As shown in Fig. 5, Fig. 6 and Fig. 7, described spring pile-up 5 comprises contact spring 51 and welding cornerite 52, the left end of contact spring 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 with the right-hand member of contact spring 51 by the pedestal 522 of left end, and this region is welding region 55;
As shown in Figure 3, described top electrode assembly 3 comprises upper electrode tip 31 and upper welder joint 32, and 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; Further, the present embodiment is preferably: the material of upper electrode tip 31 is yellow gold or silver-colored evanohm.
As shown in Figure 4, described bottom electrode assembly 4 comprises lower electrode tip 41 and lower welder joint 42, and 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; Further, the present embodiment is preferably: the material of lower electrode tip 41 is yellow gold or silver-colored evanohm.
Meanwhile, as shown in Figure 1, the cross-sectional area of the lower electrode tip 41 of described bottom electrode assembly 4 is larger than the cross-sectional area of the upper electrode tip 31 of top electrode assembly 3.
Meanwhile, as shown in Figure 1, be also placed with at the bottom right of bottom electrode assembly 4 and the vertical electrode hole contact internal walls place of positioning fixture 1 banking stop 7 that insulate.
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, then connect the power supply of top electrode assembly 3 and bottom electrode assembly 4, namely complete with welding region 55 place of electrode assemblie 3 contact terminal spring assembly 5.
Method determined by the clamping that this weld jig changes original fixture, ensure 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 of welding packfong and silver-colored magnesium nickel component with tungsten-copper alloy, chrome zirconium copper alloy, Be-Co-Cu alloy etc. as electrode material, namely weld packfong and silver-colored magnesium nickel spring assembly with yellow gold, silver-colored evanohm as electrode tip; The adhesion, the weld metal zone temperature that solve this spring assembly of welding for a long time and electrode be too high, the problem such as outstanding 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 object, improve business efficiency; There is certain popularization and reference value the spot welding non-ferrous metal aspect that is produced on of the application of this welding method and electrode.
Claims (7)
1. the welding method of a relay tip spring assembly, comprise equipment: the spring pile-up (5) of positioning fixture (1), top electrode assembly (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), described spring pile-up (5) comprises contact spring (51) and welding cornerite (52), the left end of contact spring (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 with the right-hand member of contact spring (51) by the pedestal (522) of left end, this region is welding region (55), 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), then the power supply of top electrode assembly (3) and bottom electrode assembly (4) is connected, 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 top electrode assembly (3) comprises 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) comprises 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, is characterized in that: the cross-sectional area of the lower electrode tip (41) of described bottom electrode assembly (4) is larger than the cross-sectional area of the upper electrode tip (31) of top electrode assembly (3).
5. the welding method of relay tip spring assembly as claimed in claim 2, is characterized in that: the material of described upper electrode tip (31) is yellow gold or silver-colored evanohm.
6. the welding method of relay tip spring assembly as claimed in claim 3, is characterized in that: the material of described lower electrode tip (41) is yellow gold or silver-colored evanohm.
7. the welding method of relay tip spring assembly as claimed in claim 3, is characterized in that: the bottom right of described bottom electrode assembly (4) and the vertical electrode hole contact internal walls place of positioning fixture (1) are also placed with the banking stop (7) that insulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN104485261A true CN104485261A (en) | 2015-04-01 |
| CN104485261B CN104485261B (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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 |
| JPH09220673A (en) * | 1996-02-14 | 1997-08-26 | Mitsubishi Motors Corp | Metal sheet weld joining structure and metal sheet weld joining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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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| CN104485261B (en) | 2016-07-06 |
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