CN105537746A - Projection welding bottom electrode capable of preventing water leakage and long in service life - Google Patents
Projection welding bottom electrode capable of preventing water leakage and long in service life Download PDFInfo
- Publication number
- CN105537746A CN105537746A CN201610057225.XA CN201610057225A CN105537746A CN 105537746 A CN105537746 A CN 105537746A CN 201610057225 A CN201610057225 A CN 201610057225A CN 105537746 A CN105537746 A CN 105537746A
- Authority
- CN
- China
- Prior art keywords
- electrode
- bottom electrode
- projection welding
- water leakage
- preventing water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a projection welding bottom electrode capable of preventing water leakage and long in service life. The projection welding bottom electrode comprises a rubber sealing ring, a bottom electrode base and an electrode rod. An inner cavity of the electrode rod is of a stepped structure, and the lower portion of the bottom electrode base is of a stepped structure. The lower portion of the bottom electrode base and the inner cavity of the electrode rod are in threaded connection. The rubber sealing ring is arranged between the bottom electrode base and the electrode rod. The projection welding bottom electrode is simple in structure and high in manufacturability. Fit between the bottom electrode base and the electrode rod is changed into the threaded fit, and conductivity is improved. The rubber sealing ring is added, so that waterproof performance is improved. The stressed part is changed into the step face, and the problem that the electrode rod is expanded large is solved.
Description
Technical field
The present invention relates to electrode technology field, particularly relate to the projection welding bottom electrode of length of a kind of preventing water leakage life-span.
Background technology
At present projection welding bottom electrode seat be mainly following structure with electrode stem matching part: lower electrode holder and electrode stem inside by same taper WEDM, compression fit.Good when this kind of fitting method uses when working electrode is all newer, but with after a period of time, because electrode stem is always stressed, cause the electrode stem size of collocation place increasing, collocation position there is gap, cause collocation after leak, powered be deteriorated, affect welding effect.Electrode stem and lower electrode holder are blind-mate, and both tapered portion are because coordinating demand, and surface roughness requirements is high, when opening cooling water after engagement, receive hydraulic pressure effect, lower electrode holder easily comes off, and impact is produced, therefore producers twine adhesive waterproof tape so that anti-skidding through the mating part of lower electrode holder of being everlasting, but the method affects electric conductivity, and because of taper fit, the effect of being under pressure when producing, often make electrode stem taper fit position be stretched, thus need replacing be scrapped.
Summary of the invention
The present invention, for solving the above problems, provides the projection welding bottom electrode that a kind of preventing water leakage life-span is long.
For solving the problems of the technologies described above, technical scheme of the present invention is: the projection welding bottom electrode that a kind of preventing water leakage life-span is long, comprise rubber seal, lower electrode holder and electrode stem, the inner chamber of electrode stem is stepped construction, the bottom of lower electrode holder is stepped construction, the bottom of lower electrode holder is connected with the thread in inner cavity of electrode stem, is provided with rubber seal between lower electrode holder and electrode stem.
Further, the material of lower electrode holder, electrode stem is chromium zirconium copper.
Further, rubber seal is high temperature resistance elastomeric material.
Structure of the present invention is simple, and manufacturability is high; Lower electrode holder and electrode stem change threaded engagement into, improve electric conductivity; Add rubber seal, improve water proofing property; Make force part change step surface place into stressed, improve the problem that electrode stem is stretched.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1. rubber seal, 2. lower electrode holder, 3. electrode stem.
Detailed description of the invention
As shown in Figure 1, the projection welding bottom electrode that a kind of preventing water leakage life-span is long, comprise rubber seal 1, lower electrode holder 2 and electrode stem 3, the inner chamber of electrode stem 3 is stepped construction, the bottom of lower electrode holder 2 is stepped construction, the bottom of lower electrode holder 2 is connected with the thread in inner cavity of electrode stem 3, is provided with rubber seal 1 between lower electrode holder 2 and electrode stem 3.Select the chromium zirconium copper coin pipe that external diameter is Ф 35.5mm, internal diameter is Ф 16mm to be raw material, two ends are carried out turnery processing by processing request and are made electrode stem 3; The chromium zirconium copper stock selecting Ф 25mm is raw material, carries out turnery processing on request make lower electrode holder 2 with electrode stem 3 cooperation place; Select high temperature resistance elastomeric material, the rubber seal 1 of internal diameter Ф 21.6mm, external diameter Ф 26mm, thick 2.4mm is used as waterproof sealing.First rubber seal 1 is contained on lower electrode holder 2, then with instruments such as spanners, lower electrode holder 2 and electrode stem 3 is screwed by screw thread, lower electrode holder 2 and electrode stem 3 are killed at step place.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (3)
1. the projection welding bottom electrode of a preventing water leakage life-span length, it is characterized in that: comprise rubber seal (1), lower electrode holder (2) and electrode stem (3), the inner chamber of electrode stem (3) is stepped construction, the bottom of lower electrode holder (2) is stepped construction, the bottom of lower electrode holder (2) is connected with the thread in inner cavity of electrode stem (3), is provided with rubber seal (1) between lower electrode holder (2) and electrode stem (3).
2. the projection welding bottom electrode that a kind of preventing water leakage life-span according to claim 1 is long, is characterized in that: described lower electrode holder (2), the material of electrode stem (3) are chromium zirconium copper.
3. the projection welding bottom electrode that a kind of preventing water leakage life-span according to claim 1 is long, is characterized in that: described rubber seal (1) is high temperature resistance elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057225.XA CN105537746A (en) | 2016-01-27 | 2016-01-27 | Projection welding bottom electrode capable of preventing water leakage and long in service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057225.XA CN105537746A (en) | 2016-01-27 | 2016-01-27 | Projection welding bottom electrode capable of preventing water leakage and long in service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105537746A true CN105537746A (en) | 2016-05-04 |
Family
ID=55817556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610057225.XA Pending CN105537746A (en) | 2016-01-27 | 2016-01-27 | Projection welding bottom electrode capable of preventing water leakage and long in service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105537746A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927522A (en) * | 2006-09-21 | 2007-03-14 | 湖北汽车工业学院 | Rapid cold nut welding electrode |
| CN201313236Y (en) * | 2008-12-22 | 2009-09-23 | 联伟汽车零部件(重庆)有限公司 | Internal circulating water-cooled lower electrode suitable for bolt and nut projection welding |
| CN201483150U (en) * | 2009-05-28 | 2010-05-26 | 湖北汽车工业学院 | Water jacket type nut welding electrode |
| CN202070850U (en) * | 2011-05-13 | 2011-12-14 | 重庆平伟科技(集团)有限公司 | Special resistance projection welding lower electrode for ring nuts |
| CN202317420U (en) * | 2011-11-28 | 2012-07-11 | 成都槟果科技有限公司 | Upper electrode cap for projection welding machine |
| CN205520052U (en) * | 2016-01-27 | 2016-08-31 | 大连嘉翔科技有限公司 | Longe -lived projection welding welding bottom electrode of leak protection water |
-
2016
- 2016-01-27 CN CN201610057225.XA patent/CN105537746A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927522A (en) * | 2006-09-21 | 2007-03-14 | 湖北汽车工业学院 | Rapid cold nut welding electrode |
| CN201313236Y (en) * | 2008-12-22 | 2009-09-23 | 联伟汽车零部件(重庆)有限公司 | Internal circulating water-cooled lower electrode suitable for bolt and nut projection welding |
| CN201483150U (en) * | 2009-05-28 | 2010-05-26 | 湖北汽车工业学院 | Water jacket type nut welding electrode |
| CN202070850U (en) * | 2011-05-13 | 2011-12-14 | 重庆平伟科技(集团)有限公司 | Special resistance projection welding lower electrode for ring nuts |
| CN202317420U (en) * | 2011-11-28 | 2012-07-11 | 成都槟果科技有限公司 | Upper electrode cap for projection welding machine |
| CN205520052U (en) * | 2016-01-27 | 2016-08-31 | 大连嘉翔科技有限公司 | Longe -lived projection welding welding bottom electrode of leak protection water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |