CN102114572B - Spot welding machine - Google Patents
Spot welding machine Download PDFInfo
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- CN102114572B CN102114572B CN 201110067312 CN201110067312A CN102114572B CN 102114572 B CN102114572 B CN 102114572B CN 201110067312 CN201110067312 CN 201110067312 CN 201110067312 A CN201110067312 A CN 201110067312A CN 102114572 B CN102114572 B CN 102114572B
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Abstract
The invention relates to a sot welding machine, which is improved on the basis of a conventional fixed platform, an upper electrode and a lower electrode. The sot welding machine comprises a table surface and a driving mechanism, wherein a work piece to be welded is placed on the table surface; the driving mechanism drives the table surface to lift and descend; the table surface is positioned between the fixed platform and the upper electrode; and a through hole opposite to the lower electrode is formed on the table surface. When the spot welding machine is used for spot welding, the descending of the table surface can be controlled by applying the upper electrode to the work piece to be welded; and when the work piece to be welded is contacted with the lower electrode for spot welding, the table surface stops descending as long as the upper electrode stops moving down. Therefore, by adopting the spot welding machine, compensation can be obtained automatically by the descending of the table surface, so that production efficiency is improved greatly, the quality of spot welding is ensured, and a quality accident caused by human factors is avoided by a mode of adjusting the height of the lower electrode without a person; and the sot welding machine is characterized by simple structure, good generality and low modification cost.
Description
Technical field
The present invention relates to a kind of mash welder.
Background technology
It is a kind of connected mode commonly used between metal current material and the metal material that spot welding connects, common spot welding operation all is to weld by mash welder, the bottom electrode of mash welder is fixed on the support of mash welder by lower holding rod, but top electrode and the oscilaltion under the effect of drive source of upper holding rod, the anchor clamps of workpiece to be welded are placed on the fixed platform of mash welder.
State in the pinpoint welding procedure in realization and find: the bottom electrode of mash welder is easy to wearing and tearing, thereby causes the rosin joint in the pinpoint welding procedure, and then the product quality after directly impact is welded.Although this defective can be regulated by regulating lower holding rod the height of bottom electrode, need to adjust frequently, and regulate extremely inconvenient, also be not easy to adjust to suitable height.And this regulative mode is adjusted by the people fully, and randomness is large, therefore still exists the hidden danger that quality accident occurs.Therefore in actual production, still do not stop the generation of rosin joint phenomenon.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned prior art present situation, a kind of at any time compensating electrode wear extent is provided and can guarantees the mash welder of welding quality.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of mash welder, comprise support, fixed platform, be positioned on the fixed platform can oscilaltion top electrode and the bottom electrode relative with top electrode, described bottom electrode is fixed on the described support, and intert at the through hole that is arranged on the fixed platform upper end of bottom electrode, it is characterized in that: also comprise the table top of placing for workpiece to be welded and the driving mechanism that drives this table top oscilaltion, and described table top has the through hole relative with described bottom electrode at this table top between described fixed platform and top electrode.
More preferably scheme is, described driving mechanism can be cylinder, and the piston rod of this cylinder and described table top fix, and also is provided with simultaneously the pneumatic pressure-release valve that is connected with the rodless cavity of this cylinder, and the rodless cavity of this cylinder also links to each other with source of the gas by a bypass.The assembled scheme of this cylinder and pneumatic pressure-release valve; overall structure is simple; reaction is fast; can make top electrode after forcing in workpiece to be welded; make the rodless cavity supercharging of cylinder; pressure after the supercharging passes through the pneumatic pressure-release valve automatic-discharging, thereby makes table top be able to timely decline, is not weighed wounded by top electrode with the surface of protecting workpiece to be welded.
In above-mentioned preferred version, cylinder can be arranged on the below of described fixed platform, and the piston rod of this cylinder fixes with described table top after passing described fixed platform, so that integral layout is more reasonable.
Certainly, in above-mentioned more preferably scheme, pneumatic pressure-release valve also can adopt the scheme of electromagnetic relief pressure valve, at this moment, the top electrode that the sensing point welding machine is installed at table top forces in the sensor of workpiece to be welded, the signal of this sensor sends to the controller of mash welder, and the controller of this mash welder is controlled the action of electromagnetic relief pressure valve again, and the rodless cavity of this cylinder also links to each other with source of the gas by a bypass.Such scheme can achieve the above object equally.
The driving mechanism that the lifting of table top also can adopt motor and screw mandrel, pair of nut to form, the rotating by the control motor can drive nut or screw mandrel oscilaltion, and the table top that is connected mutually with nut also just can oscilaltion.
Scheme is preferably, and the bottom surface of described table top is connected with many leads, and each lead is bearing in the linear bearing that is arranged on the fixed platform.By the guiding of each lead, so that the table top lifting more steadily, reliably.
Compared with prior art, owing to having set up the table top of energy lifting among the present invention, therefore, during spot welding, can force in by top electrode the decline of the information control table top of workpiece to be welded, and when workpiece to be welded and bottom electrode are touched beginning spot welding mutually, along with top electrode stops to move down, table top also just stops to descend, thereby behind employing the present invention, no matter bottom electrode has great wear extent, all can automatically be compensated by the decline of table top, therefore this mode that need not artificially to adjust the bottom electrode height, greatly improved production efficiency, guaranteed simultaneously point quality, the quality accident of having avoided human factor to cause, and have simple in structure, versatility is good, the characteristics that improvement cost is low.
Description of drawings
Fig. 1 is one of perspective view of the embodiment of the invention;
Fig. 2 is the structural representation that anchor clamps and product to be welded are installed on the table top among Fig. 1;
Fig. 3 be the embodiment of the invention perspective view two;
Fig. 4 be the embodiment of the invention perspective view three.
The specific embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, the mash welder of the present embodiment is used for inner panel a and the outside plate b of welding of automotive doorframe column, this mash welder includes vertical support 1, fixed platform 11 and mutual corresponding top electrode 12, bottom electrode 13, wherein, fixed platform 11 is arranged on the support 1, and its middle part has the through hole relative with bottom electrode 13; Bottom electrode 13 is fixed in by lower holding rod 14 on the support 1 of mash welder, and intert in the through hole of fixed platform the upper end; Top electrode 12 and upper holding rod 15 can oscilaltions above fixed platform under the effect of drive source.Here, support, workbench, drive source and upper and lower electrode all adopt the structure in the existing general point welding machine, and these all are prior aries, do not do at this and give unnecessary details.
The inventive point of the present embodiment is to have set up unsteady stand, the stand that should float comprises table top 2 and drives the driving mechanism of this table top oscilaltion, table top 2 has the through hole 21 relative with the bottom electrode 13 of mash welder on the table top between the fixed platform 11 and top electrode 12 of mash welder.
Above-mentioned driving mechanism is two cylinders that are set up in parallel 3, piston rod 31 tops of each cylinder and the bottom surface of table top 2 fix, the rodless cavity of each cylinder is connected with pneumatic pressure-release valve 4 simultaneously, and the rodless cavity of this two cylinder also links to each other with the source of the gas (not shown) by a bypass (not shown).
In order to make the table top oscilaltion more steady, in the present embodiment, four jiaos of the bottom surfaces of table top also are fixed with respectively lead 5, and each lead is bearing in the linear bearing 6 that is arranged on the fixed platform.
Before the spot welding, spot welding fixture (SWFX) c is placed on the table top 2, and these anchor clamps c has the function of automatically finding solder joint accurately, and workpiece to be welded is placed on these anchor clamps.At this moment, source of the gas is given ventilating without the chamber bar of each cylinder by bypass, after the piston rod of two cylinders is simultaneously overhanging the table top picking-up is in state to be welded.After mash welder is received the spot welding order, top electrode moves down under the effect of drive source, when top electrode touches workpiece, beginning to treat welder's part exerts pressure, this pressure is by the transmission of anchor clamps and table top, make the rodless cavity supercharging of cylinder, pressure after the rodless cavity supercharging of cylinder is by the pneumatic pressure-release valve automatically unloading, and piston rod inside contracts simultaneously, and table top begins to descend, workpiece to be welded and anchor clamps descend thereupon, when workpiece to be welded and bottom electrode touching, upper and lower electrode contact begins spot welding, at this moment, top electrode no longer moves down, and table top also no longer descends.After welding was finished, top electrode resetted, and the rodless cavity of cylinder is by at once air inlet of bypass, made piston overhanging and make table top rise to again state to be welded, waited for and repeated next circulation.Go round and begin again like this, finish successively the spot-welded on the workpiece to be welded.
In the above-described embodiments, pneumatic pressure-release valve also can adopt electromagnetic relief pressure valve, at this moment the top electrode that needs to be equipped with the sensing point welding machine on the table top forces in the sensor of workpiece to be welded, during work, detect the application of force signal of this top electrode when sensor after, the controller of mash welder passed to the signal that detects by sensor, by opening of controller control electromagnetic relief pressure valve; Perhaps, the driving mechanism that driving mechanism adopts motor and screw mandrel, pair of nut to form is by the positive and negative purpose that realizes the table top oscilaltion that transfers of motor.Therefore all any modifications of doing within the spirit and principles in the present invention and be equal to replacement all should be included within protection scope of the present invention.
Claims (5)
1. mash welder, comprise support (1), fixed platform (11), be positioned on the fixed platform can oscilaltion top electrode (12) and the bottom electrode (13) relative with top electrode, described bottom electrode (13) is fixed on the described support (1), intert at the through hole that is arranged on the fixed platform (11) upper end of described bottom electrode (13), it is characterized in that: also comprise the table top (2) of placing for workpiece to be welded and the driving mechanism that drives this table top (2) oscilaltion, and described table top (2) is positioned between described fixed platform (11) and the top electrode (12), has the through hole (21) relative with described bottom electrode (13) at this table top (2).
2. mash welder according to claim 1, it is characterized in that: described driving mechanism is cylinder, the piston rod of this cylinder and described table top (2) fix, also be provided with simultaneously the pneumatic pressure-release valve that is connected with the rodless cavity of this cylinder, the rodless cavity of this cylinder also links to each other with source of the gas by a bypass.
3. mash welder according to claim 2, it is characterized in that: described cylinder is arranged on the below of described fixed platform (11), and the piston rod of this cylinder fixes with described table top (2) after passing described fixed platform (11).
4. mash welder according to claim 1, it is characterized in that: the top electrode that the sensing point welding machine also is installed on the described table top forces in the sensor of workpiece to be welded; And described driving mechanism is cylinder, and the piston rod of this cylinder and described table top fix, and is connected with the electromagnetic relief pressure valve that is subjected to the sensor signal controlling and moves in the rodless cavity of this cylinder, and the rodless cavity of this cylinder also links to each other with source of the gas by a bypass.
5. according to claim 1 and 2 or 3 or 4 described mash welders, it is characterized in that: also be connected with many leads (5) on the bottom surface of described table top (2), each lead is bearing in the linear bearing (6) that is arranged on the described fixed platform (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110067312 CN102114572B (en) | 2011-03-17 | 2011-03-17 | Spot welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110067312 CN102114572B (en) | 2011-03-17 | 2011-03-17 | Spot welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN102114572A CN102114572A (en) | 2011-07-06 |
| CN102114572B true CN102114572B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110067312 Active CN102114572B (en) | 2011-03-17 | 2011-03-17 | Spot welding machine |
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| CN (1) | CN102114572B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294538A (en) * | 2011-08-18 | 2011-12-28 | 佛山市胜安制冷配件有限公司 | Novel automatic electric welding machine |
| CN103447680B (en) * | 2012-05-30 | 2015-08-12 | 昆山荣仕杰自动焊接设备有限公司 | Oil baffle multiple spot welding special plane |
| CN105127574A (en) * | 2015-09-28 | 2015-12-09 | 宁波敏实汽车零部件技术研发有限公司 | Spot welding machine for automobile door frame parts |
| CN105855681A (en) * | 2016-05-09 | 2016-08-17 | 广东金田电热制品有限公司 | Full-automatic spot welding equipment |
| CN106735813B (en) * | 2016-12-26 | 2020-10-02 | 宁波宏协承汽车部件有限公司 | Spot welder base mechanism |
| CN106914693A (en) * | 2017-03-10 | 2017-07-04 | 清远诺巴特智能设备有限公司 | A kind of welding handgrip of highly automated regulation |
| CN107662042A (en) * | 2017-09-06 | 2018-02-06 | 江苏北人机器人系统股份有限公司 | A kind of welding system and its position correcting method |
| CN110394535A (en) * | 2019-08-16 | 2019-11-01 | 绍兴柯桥凯歌电子有限公司 | It is a kind of can automatic identification positioning small-sized spot-welding machine |
| CN111618468B (en) * | 2020-06-23 | 2022-02-11 | 洛阳丰力办公机具有限公司 | Double-sided full-automatic welding production line for file cabinet |
| CN115673510B (en) * | 2023-01-05 | 2023-04-07 | 武汉威普泰科技有限公司 | Multi-head spot welding machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201371311Y (en) * | 2009-01-13 | 2009-12-30 | 信源电子制品(昆山)有限公司 | Automatic spot welder with automatic feeding and continuous welding |
| CN201609809U (en) * | 2009-12-09 | 2010-10-20 | 天津市鸿远电力工程有限公司 | Spot welding device used for electrical processing |
| CN202006336U (en) * | 2011-03-17 | 2011-10-12 | 宁波敏实汽车零部件技术研发有限公司 | Point welding machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2989323B2 (en) * | 1991-07-02 | 1999-12-13 | 株式会社クラタ | Spot welding equipment |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201371311Y (en) * | 2009-01-13 | 2009-12-30 | 信源电子制品(昆山)有限公司 | Automatic spot welder with automatic feeding and continuous welding |
| CN201609809U (en) * | 2009-12-09 | 2010-10-20 | 天津市鸿远电力工程有限公司 | Spot welding device used for electrical processing |
| CN202006336U (en) * | 2011-03-17 | 2011-10-12 | 宁波敏实汽车零部件技术研发有限公司 | Point welding machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平5-8048A 1993.01.19 |
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| CN102114572A (en) | 2011-07-06 |
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| C14 | Grant of patent or utility model | ||
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Application publication date: 20110706 Assignee: BEIJING MINTH AUTOMOTIVE PARTS CO., LTD. Assignor: Ningbo Minth Auto Parts Technology Development Co., Ltd. Contract record no.: 2014330000422 Denomination of invention: Spot welding cutter for spot-welding machine and production method thereof Granted publication date: 20130417 License type: Exclusive License Record date: 20141118 |
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