CN202006336U - Point welding machine - Google Patents
Point welding machine Download PDFInfo
- Publication number
- CN202006336U CN202006336U CN2011200745957U CN201120074595U CN202006336U CN 202006336 U CN202006336 U CN 202006336U CN 2011200745957 U CN2011200745957 U CN 2011200745957U CN 201120074595 U CN201120074595 U CN 201120074595U CN 202006336 U CN202006336 U CN 202006336U
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- table top
- cylinder
- electrode
- bottom electrode
- fixed platform
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Abstract
The utility model relates to a point welding machine, which is improved on the basis of the original fixed platform, the top electrode, the bottom electrode and the like, and also comprises a table top and a driving mechanism, wherein the workpiece to be welded is placed on the table top, and the driving mechanism is used for driving the table top to lift up and down. The table top is positioned between the fixed platform and the top electrode, and a through hole opposite with the bottom electrode is arranged on the table top. When the point welding machine is adopted for point welding, the top electrode can apply force to the workpiece to be welded to control the table top to lift down. When the workpiece to be welded touches the bottom electrode to start point welding, the table top stops lifting down following the top electrode stopping lifting down. Thus, after the point welding machine is adopted, no matter how large the abrasion loss of the bottom electrode is, the bottom electrode can be automatically compensated through the lifting-down of the table top. Thus, the mode that the height of the bottom electrode is not artificially adjusted greatly increases the production efficiency, ensures the quality of point welding, and avoids the quality accident caused by personal factors. The point welding machine has simple structure, good generality and low reformation cost.
Description
Technical field
The utility model 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 following holding rod, but top electrode and upward holding rod oscilaltion under the effect of drive source, 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 influence is welded.Though this defective can be regulated the height of bottom electrode by regulating down holding rod, need frequent adjustment, and regulate extremely inconvenience, also be not easy to adjust to suitable height.And this regulative mode is adjusted by the people fully, and randomness is big, therefore still exists the hidden danger that quality accident takes place.So in actual production, still do not stop the generation of rosin joint phenomenon.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned prior art present situation, a kind of wear extent of compensating electrode at any time is provided and can guarantees the mash welder of welding quality.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: 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 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 on 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 the pneumatic pressure-release valve that is connected with the rodless cavity of this cylinder simultaneously, 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 discharges automatically by pneumatic pressure-release valve, 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 on 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, make the table top lifting more steadily, reliably.
Compared with prior art, owing to set up the table top of energy lifting in the utility model, therefore, during spot welding, can force in the decline of the information control table top of workpiece to be welded by top electrode, 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 utility model, no matter bottom electrode has great wear extent, all can be compensated automatically by the decline of table top, so this mode that need not artificially to adjust the bottom electrode height, greatly improved production efficiency, guaranteed point quality simultaneously, 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 utility model embodiment;
Fig. 2 is for being equipped with the structural representation of anchor clamps and product to be welded on the table top among Fig. 1;
Fig. 3 be the utility model embodiment perspective view two;
Fig. 4 be the utility model embodiment perspective view three.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, the mash welder of present embodiment is used for the 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 corresponding mutually 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 on the support 1 of mash welder by following holding rod 14, and intert in the through hole of fixed platform the upper end; Top electrode 12 and last 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 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, the bottom surface of table top also is fixed with lead 5 respectively for four jiaos, 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 finding solder joint automatically accurately, and workpiece to be welded is placed on these anchor clamps.At this moment, the no chamber bar ventilation that source of the gas is given each cylinder by bypass is in state to be welded with the table top picking-up after the piston rod of two cylinders is simultaneously overhanging.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 contracts in the piston rod simultaneously by the pneumatic pressure-release valve automatically unloading, 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 beginning 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 bypass air inlet at once, made piston overhanging and make table top rise to state to be welded again, waited for and repeated next circulation.Go round and begin again like this, finish the spot-welded on the workpiece to be welded successively.
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, sensor is passed to the controller of mash welder with the signal that detects, 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.So all any modifications of being done within spirit of the present utility model and principle and be equal to replacement all should be included within the protection domain of the present utility model.
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 table top of placing for workpiece to be welded (2) 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) on this table top (2).
2. mash welder according to claim 1, it is characterized in that: described driving mechanism is a cylinder, the piston rod of this cylinder and described table top (2) fix, also be provided with the pneumatic pressure-release valve that is connected with the rodless cavity of this cylinder simultaneously, 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 is characterized in that: described cylinder is arranged on the below of described fixed platform (11), and the piston rod of this cylinder passes described fixed platform (11) back and fixes with described table top (2).
4. mash welder according to claim 1 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 a 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 or 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 |
|---|---|---|---|
| CN2011200745957U CN202006336U (en) | 2011-03-17 | 2011-03-17 | Point welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200745957U CN202006336U (en) | 2011-03-17 | 2011-03-17 | Point welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202006336U true CN202006336U (en) | 2011-10-12 |
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ID=44748000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200745957U Expired - Lifetime CN202006336U (en) | 2011-03-17 | 2011-03-17 | Point welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202006336U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114572A (en) * | 2011-03-17 | 2011-07-06 | 宁波敏实汽车零部件技术研发有限公司 | Spot welding machine |
| CN103158132A (en) * | 2011-12-09 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Machine platform |
| CN103212775A (en) * | 2013-04-09 | 2013-07-24 | 武汉理工大学 | Automatic compensation system for electrode tip of welding manipulator |
| CN103286488A (en) * | 2013-05-22 | 2013-09-11 | 宁波敏实汽车零部件技术研发有限公司 | Special arc welding machine for lifting guide rails of automobile window glass |
| CN103658955A (en) * | 2012-09-26 | 2014-03-26 | 天宇通讯科技(昆山)有限公司 | Battery pack automatic spot welding system |
| CN103962700A (en) * | 2014-04-24 | 2014-08-06 | 浙江欣通电气有限公司 | Welding mechanism with lifting device |
| CN107486618A (en) * | 2017-10-13 | 2017-12-19 | 武汉精瑞达金属制品有限公司 | Spot welding device |
| CN115121925A (en) * | 2021-06-30 | 2022-09-30 | 天津七所高科技有限公司 | Method for automatically controlling error prevention of nut welding of projection welding machine |
-
2011
- 2011-03-17 CN CN2011200745957U patent/CN202006336U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114572A (en) * | 2011-03-17 | 2011-07-06 | 宁波敏实汽车零部件技术研发有限公司 | Spot welding machine |
| CN102114572B (en) * | 2011-03-17 | 2013-04-17 | 宁波敏实汽车零部件技术研发有限公司 | Spot welding machine |
| CN103158132A (en) * | 2011-12-09 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Machine platform |
| CN103658955A (en) * | 2012-09-26 | 2014-03-26 | 天宇通讯科技(昆山)有限公司 | Battery pack automatic spot welding system |
| CN103212775A (en) * | 2013-04-09 | 2013-07-24 | 武汉理工大学 | Automatic compensation system for electrode tip of welding manipulator |
| CN103212775B (en) * | 2013-04-09 | 2015-05-27 | 武汉理工大学 | Automatic compensation system for electrode tip of welding manipulator |
| CN103286488A (en) * | 2013-05-22 | 2013-09-11 | 宁波敏实汽车零部件技术研发有限公司 | Special arc welding machine for lifting guide rails of automobile window glass |
| CN103962700A (en) * | 2014-04-24 | 2014-08-06 | 浙江欣通电气有限公司 | Welding mechanism with lifting device |
| CN103962700B (en) * | 2014-04-24 | 2016-01-13 | 浙江欣通电气有限公司 | A kind of welding mechanism with lowering or hoisting gear |
| CN107486618A (en) * | 2017-10-13 | 2017-12-19 | 武汉精瑞达金属制品有限公司 | Spot welding device |
| CN107486618B (en) * | 2017-10-13 | 2022-11-29 | 武汉精瑞达金属制品有限公司 | Spot welding device |
| CN115121925A (en) * | 2021-06-30 | 2022-09-30 | 天津七所高科技有限公司 | Method for automatically controlling error prevention of nut welding of projection welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHANGCHUN MINTH AUTO PARTS CO., LTD. Assignor: Ningbo Minth Auto Parts Technology Development Co., Ltd. Contract record no.: 2012330000051 Denomination of utility model: Spot welding cutter for spot-welding machine and production method thereof Granted publication date: 20111012 License type: Exclusive License Record date: 20120305 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111012 Effective date of abandoning: 20130417 |
|
| RGAV | Abandon patent right to avoid regrant |