CN104476056A - Protruding point welding method of automobile fuel tank and fixing flange - Google Patents
Protruding point welding method of automobile fuel tank and fixing flange Download PDFInfo
- Publication number
- CN104476056A CN104476056A CN201410590850.1A CN201410590850A CN104476056A CN 104476056 A CN104476056 A CN 104476056A CN 201410590850 A CN201410590850 A CN 201410590850A CN 104476056 A CN104476056 A CN 104476056A
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- CN
- China
- Prior art keywords
- welding
- mounting flange
- oil tank
- fuel tank
- tank body
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- 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.)
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Classifications
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a protruding point welding method of an automobile fuel tank and a fixing flange. The protruding point welding method comprises the following steps of step a, stamping out a group of protruding points along the annular plate surface of the fixing flange; step b, placing a tank body of the automobile fuel tank on a lower electrode of a numerical control projection welding machine and enabling a welding lip of the tank body of the automobile fuel tank to be matched with a boss of the lower electrode of the numerical control projection welding machine; step c, placing the fixing flange at the position of the welding lip of the automobile fuel tank and enabling the protruding point surface of the fixing flange to be in contact with the top surface of the tank body of the automobile fuel tank; step d, starting the numerical control projection welding machine and welding the tank body of the automobile fuel tank and the fixing flange through the match of an upper electrode and the lower electrode of the numerical control projection welding machine. According to the protruding point welding method of the automobile fuel tank and a fixing flange, the protruding points formed on the fixing flange and base materials of the tank body of the automobile fuel tank are instantaneously fused through the match of the upper electrode and the lower electrode and accordingly the purpose of the firm welding is achieved and the welding lip is not damaged and the welding is formed in one-step mode and accordingly the welding efficiency is greatly improved; the welding process is automatically achieved through the numerical control projection welding machine, different welding parameters can be set according to different products, and accordingly the welding quality is improved.
Description
Technical field
The present invention relates to automotive oil tank manufacturing technology field, specifically the salient point welding method of a kind of automotive oil tank and mounting flange.
Background technology
Mounting flange on automotive oil tank is used to fixing fuel-quantity transducer and the attaching parts sucking back oil pipe, the method normally adopting progressive spot welding to weld between mounting flange with oil tank body is fixedly connected with, at present, the general employing mash welder mode of resistance-type progressive spot welding connects, dry joint, rosin joint is easily produced, not prison welding in pinpoint welding procedure; The welding lip limit that easily powered on becomes gap, produces leakage of oil; Upper/lower electrode, owing to being point cantact, making wear to electrodes serious, changes the electrode tip frequency large, cause equipment component replacement cost large; In addition, in order to ensure the intensity that mounting flange welds, injury lip is avoided to cause leakage of oil, each mounting flange all needs in diverse location spot welding repeatedly, and each automotive oil tank needs the multiple mounting flange of spot welding, all welding is all manually completed by operating personnel, and labour intensity is large, efficiency is low.
Summary of the invention
The object of the present invention is to provide the salient point welding method of a kind of automotive oil tank and mounting flange, the method can be welded with mounting flange oil tank body rapidly, improves welding efficiency and welding quality.
The technical solution adopted for the present invention to solve the technical problems is:
A salient point welding method for automotive oil tank and mounting flange, comprises the following steps:
A) annular disk surfaces along mounting flange stamps out one group of salient point;
B) be placed in by the casing of automotive oil tank on the bottom electrode of numerical control projection welder, the welding lip of oil tank body is formed with the boss of numerical control projection welder bottom electrode and coordinates;
C) be placed in by mounting flange on the welding lip of automotive oil tank, the salient point surface of mounting flange contacts with the end face of oil tank body;
D) start numerical control projection welder, coordinated with bottom electrode by its top electrode, oil tank body is welded with mounting flange.
Further, described salient point is arc-shaped.
Further, described mounting flange comprises five threaded mounting holes, and described salient point is five, and salient point and threaded mounting hole interval are arranged.
The invention has the beneficial effects as follows, top electrode and the bottom electrode of numerical control projection welder coordinate when welding, produce powerful heat instantaneously, under the electrode pressure of setting, salient point on mounting flange and oil tank body matrix material are merged instantaneously, reach the object of firmly welding, realize welding of oil tank body and mounting flange, and welding lip can not be damaged; Welding one-shot forming, drastically increase welding efficiency, welding process is completed automatically by numerical control projection welder, can arrange different welding parameters, improve welding quality according to different products.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is the use schematic diagram of the embodiment of the present invention;
Fig. 2 is the enlarged diagram of mounting flange in the embodiment of the present invention;
Fig. 3 is the A-A revolved sectional view of Fig. 2;
Fig. 4 is the enlarged diagram of oil tank body in embodiment in the present invention;
Fig. 5 is that in Fig. 1, mounting flange coordinates schematic diagram with the amplification of oil tank body.
Detailed description of the invention
embodiment one
Take material thickness as the mounting flange that the oil tank body of 1.0mm and thickness are 3.0mm be example, the invention provides the salient point welding method of a kind of automotive oil tank and mounting flange, comprise following steps:
A) composition graphs 2 is with shown in Fig. 3, and mounting flange 5 comprises five threaded mounting holes 6, and the annular disk surfaces along mounting flange stamps out five salient points 7 in circular arc, and threaded mounting hole 6 interval of salient point 7 and mounting flange is arranged; According to the model of different mounting flange, salient point 7 and threaded mounting hole 6 can be arranged by interval 10 ~ 15mm;
B) shown in composition graphs 1, Fig. 4 and Fig. 5, be placed in by oil tank body 4 on the bottom electrode 3 of numerical control projection welder 1, the welding lip 8 of oil tank body 4 is formed with the boss of bottom electrode 3 and coordinates;
C) be placed on the welding lip 8 of automotive oil tank 4 by mounting flange 5, the salient point surface of mounting flange 5 contacts with the end face of oil tank body 4;
D) arrange on numerical control projection welder 1 squeeze time 65s, disconnected pressure time 30s, preheating time 4s, preheat curent 80A, weld interval 4s, welding current 80A, post-heating current 35A, the 10s that holds time, cylinder operation pressure 0.4MPa, start numerical control projection welder 1, cylinder 9 drives top electrode 2 to press down, by coordinating of its top electrode 2 and bottom electrode 3, oil tank body is welded with mounting flange.
Embodiment two
Take material thickness as the mounting flange that the oil tank body of 1.5mm and thickness are 3.0mm be example, the invention provides the salient point welding method of a kind of automotive oil tank and mounting flange, step a ~ c is identical with embodiment one, in steps d, squeeze time 65s is set on numerical control projection welder 1, disconnected pressure time 30s, preheating time 4s, preheat curent 80A, weld interval 5s, welding current 84A, post-heating current 35A, hold time 10s, cylinder operation pressure 0.45MPa, start numerical control projection welder 1, cylinder 9 drives top electrode 2 to press down, by coordinating of its top electrode 2 and bottom electrode 3, oil tank body is welded with mounting flange.
Embodiment three
Take material thickness as the mounting flange that the oil tank body of 1.0mm and thickness are 4.0mm be example, the invention provides the salient point welding method of a kind of automotive oil tank and mounting flange, step a ~ c is identical with embodiment one, in steps d, squeeze time 65s is set on numerical control projection welder 1, disconnected pressure time 30s, preheating time 4s, preheat curent 80A, weld interval 4s, welding current 86A, post-heating current 35A, hold time 10s, cylinder operation pressure 0.5MPa, start numerical control projection welder 1, cylinder 9 drives top electrode 2 to press down, by coordinating of its top electrode 2 and bottom electrode 3, oil tank body is welded with mounting flange.
Top electrode 2 and the bottom electrode 3 of numerical control projection welder 1 coordinate releases heat when welding, and the salient point of mounting flange 5 melts and forms solder joint under big current effect, realize welding of automotive oil tank and mounting flange, and can not damage welding lip; Welding one-shot forming, drastically increase welding efficiency, welding process is completed automatically by numerical control projection welder 1, can arrange different welding parameters, improve welding quality according to different products.
When meeting weld strength, on mounting flange, the number of salient point can be selected arbitrarily on demand.Such as, for the mounting flange comprising three screwed holes, can punching press three and the spaced salient point of screwed hole; For the mounting flange comprising four screwed holes, can punching press four salient points, also can punching press five salient points; The number of salient point is not by the restriction of mounting flange screwed hole.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore; relate to automotive oil tank and manufacture field; the welding method of oil tank body and mounting flange; every content not departing from technical solution of the present invention; according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belong in the scope of technical solution of the present invention protection.
Claims (3)
1. the salient point welding method of automotive oil tank and mounting flange, is characterized in that, said method comprising the steps of:
A) annular disk surfaces along mounting flange stamps out one group of salient point;
B) be placed in by the casing of automotive oil tank on the bottom electrode of numerical control projection welder, the welding lip of oil tank body is formed with the boss of numerical control projection welder bottom electrode and coordinates;
C) be placed in by mounting flange on the welding lip of automotive oil tank, the salient point surface of mounting flange contacts with the end face of oil tank body;
D) start numerical control projection welder, coordinated with bottom electrode by its top electrode, oil tank body is welded with mounting flange.
2. the salient point welding method of oil tank body according to claim 1 and mounting flange, is characterized in that, described salient point is arc-shaped.
3. the salient point welding method of oil tank body according to claim 1 and 2 and mounting flange, is characterized in that, described mounting flange comprises five threaded mounting holes, and described salient point is five, and salient point and threaded mounting hole interval are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590850.1A CN104476056A (en) | 2014-10-29 | 2014-10-29 | Protruding point welding method of automobile fuel tank and fixing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590850.1A CN104476056A (en) | 2014-10-29 | 2014-10-29 | Protruding point welding method of automobile fuel tank and fixing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104476056A true CN104476056A (en) | 2015-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410590850.1A Pending CN104476056A (en) | 2014-10-29 | 2014-10-29 | Protruding point welding method of automobile fuel tank and fixing flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104476056A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470762A (en) * | 2017-09-04 | 2017-12-15 | 菲尼克斯电梯有限公司 | A kind of spot welding process equipment of door of elevator |
| CN107498164A (en) * | 2017-09-04 | 2017-12-22 | 菲尼克斯电梯有限公司 | A kind of door-plate and deep floor assembling device |
| CN107570853A (en) * | 2017-09-04 | 2018-01-12 | 菲尼克斯电梯有限公司 | A kind of door of elevator assembles production line |
| CN112743208A (en) * | 2020-12-30 | 2021-05-04 | 江西鑫田车业有限公司 | Water-cooling plate resistance welding method and equipment for new energy automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01249274A (en) * | 1988-03-31 | 1989-10-04 | Yamakawa Ind Co Ltd | Method for fitting welding bolt |
| US5285044A (en) * | 1990-10-19 | 1994-02-08 | Yoshitaka Aoyama | Projection welding |
| CN1452670A (en) * | 2000-09-08 | 2003-10-29 | 旭化成株式会社 | Method of mfg. electrolyzer unit, electrolyzer unit, electrolyzer unit rib, welding method and welding system |
| CN103737191A (en) * | 2013-12-26 | 2014-04-23 | 芜湖中山科技有限公司 | Sheet metal part projection welding structure and projection welding process thereof |
-
2014
- 2014-10-29 CN CN201410590850.1A patent/CN104476056A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01249274A (en) * | 1988-03-31 | 1989-10-04 | Yamakawa Ind Co Ltd | Method for fitting welding bolt |
| US5285044A (en) * | 1990-10-19 | 1994-02-08 | Yoshitaka Aoyama | Projection welding |
| CN1452670A (en) * | 2000-09-08 | 2003-10-29 | 旭化成株式会社 | Method of mfg. electrolyzer unit, electrolyzer unit, electrolyzer unit rib, welding method and welding system |
| CN103737191A (en) * | 2013-12-26 | 2014-04-23 | 芜湖中山科技有限公司 | Sheet metal part projection welding structure and projection welding process thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470762A (en) * | 2017-09-04 | 2017-12-15 | 菲尼克斯电梯有限公司 | A kind of spot welding process equipment of door of elevator |
| CN107498164A (en) * | 2017-09-04 | 2017-12-22 | 菲尼克斯电梯有限公司 | A kind of door-plate and deep floor assembling device |
| CN107570853A (en) * | 2017-09-04 | 2018-01-12 | 菲尼克斯电梯有限公司 | A kind of door of elevator assembles production line |
| CN107470762B (en) * | 2017-09-04 | 2019-08-20 | 菲尼克斯电梯有限公司 | A kind of spot welding process equipment of door of elevator |
| CN107570853B (en) * | 2017-09-04 | 2019-08-20 | 菲尼克斯电梯有限公司 | A kind of door of elevator assembling production line |
| CN107498164B (en) * | 2017-09-04 | 2019-08-20 | 菲尼克斯电梯有限公司 | A kind of door-plate and deep floor assembling device |
| CN112743208A (en) * | 2020-12-30 | 2021-05-04 | 江西鑫田车业有限公司 | Water-cooling plate resistance welding method and equipment for new energy automobile |
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Application publication date: 20150401 |