CN204108509U - A kind of spot welding machine electrode head and mash welder - Google Patents
A kind of spot welding machine electrode head and mash welder Download PDFInfo
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- CN204108509U CN204108509U CN201420406036.5U CN201420406036U CN204108509U CN 204108509 U CN204108509 U CN 204108509U CN 201420406036 U CN201420406036 U CN 201420406036U CN 204108509 U CN204108509 U CN 204108509U
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Abstract
The utility model discloses a kind of spot welding machine electrode head and mash welder, described spot welding machine electrode head comprises top electrode and bottom electrode, and described top electrode inside is provided with the cooling duct of cylindricality, the cooling liquid inlet laying respectively at two ends, described cooling duct and cooling liquid outlet; Described spot welding machine electrode head also comprises cooling unit, and the cooling liquid inlet of described top electrode is connected with described cooling unit respectively by pipeline with cooling liquid outlet.Described spot welding machine electrode head realizes the direct cooling to described top electrode by the cooling duct that is arranged on top electrode inside and the cooling unit that is connected with described cooling duct, cooling effect is good, reduce workpiece heat affected area, weaken the slag-off phenomenon of electrode tip in welding process itself, avoid the generation of burning limit, burning phenomenon, reduce the reconditioning number of times of electrode tip, extend the service life of electrode tip, improve welding quality.Described mash welder comprises above-mentioned spot welding machine electrode head.
Description
Technical field
The utility model relates to plant equipment manufacturing technology field, particularly relates to a kind of spot welding machine electrode head and mash welder.
Background technology
The principle that mash welder adopts two-sided two point overcurrent to weld, include top electrode, bottom electrode and electric resistance welding unit, during work, two electrode pressurization workpiece make double layer of metal form certain contact resistance under the pressure of two electrodes, and welding current from an electrode stream through another electrode time two contact resistance points formed moment thermal weldings, and welding current moment flow to this electrode formation loop from another electrode along two workpiece, do not injure the internal structure of welded piece.
Mash welder is used for the connection of thin plate, as the fiery chimney, car steering chamber enclosure etc. of aircraft skin, aero-engine.But, spot welding electrode head shapes on market and material are not also suitable for the general electric resistance welding of general agricultural machinery or the common cold-rolled steel sheet of engineering machinery, and in heavy current (12000A) situation, electrode tip heating itself is serious, in welding process, the slag-off phenomenon of electrode tip own is serious, even occur burning limit, burning phenomenon, affect the service life of welding quality and electrode tip.
Utility model content
The purpose of this utility model is to provide a kind of spot welding machine electrode head, this spot welding machine electrode head can adapt to the general electric resistance welding of cold-rolled steel sheet, weakens the slag-off phenomenon of electrode tip in welding process itself, reduces the reconditioning number of times of electrode tip, extend the service life of electrode tip, improve welding quality.
To achieve these goals, the utility model provides following technical scheme:
A kind of spot welding machine electrode head, comprises top electrode and bottom electrode, and described top electrode inside is provided with the cooling duct of cylindricality, the cooling liquid inlet laying respectively at two ends, described cooling duct and cooling liquid outlet;
Described spot welding machine electrode head also comprises cooling unit, and the cooling liquid inlet of described top electrode is connected with described cooling unit respectively by pipeline with cooling liquid outlet.
The utility model additionally provides a kind of mash welder, comprises electric resistance welding unit and spot welding machine electrode head, and described electrode tip is above-mentioned spot welding machine electrode head.
In technique scheme, the spot welding machine electrode head that the utility model provides realizes the direct cooling to described top electrode by the cooling duct that is arranged on top electrode inside and the cooling unit that is connected with described cooling duct, cooling effect is good, reduce workpiece heat affected area, weaken the slag-off phenomenon of electrode tip in welding process itself, avoid the generation of burning limit, burning phenomenon, reduce the reconditioning number of times of electrode tip, extend the service life of electrode tip, improve welding quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in the utility model embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of spot welding machine electrode head structural representation that Fig. 1 provides for the utility model embodiment;
The spot welding machine electrode head upper electrode arrangement schematic diagram that Fig. 2 provides for the utility model embodiment;
The spot welding machine electrode head lower electrode arrangement schematic diagram that Fig. 3 provides for the utility model embodiment;
The another kind of spot welding machine electrode head upper electrode arrangement schematic diagram that Fig. 4 provides for the utility model embodiment;
Another spot welding machine electrode head upper electrode arrangement schematic diagram that Fig. 5 provides for the utility model embodiment.
In figure: 10, top electrode, 11, bottom electrode, 12, cooling duct, 13, cooling liquid inlet, 14, cooling liquid outlet, 15, cooling unit, 16, feed tube, 17, liquid back pipe, 18, electric resistance welding unit.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
Present embodiment discloses a kind of spot welding machine electrode head, described spot welding machine electrode head is used for the welding that thickness is not more than 4mm cold-rolled steel sheet.Described cold-rolled steel sheet is generally used for engineering machinery or general farm machinery.
(Figure 1 shows that spot welding machine electrode head, Figure 2 shows that top electrode as shown in Figures 1 to 3, Figure 3 shows that bottom electrode), described spot welding machine electrode head comprises top electrode 10 and bottom electrode 11, and high strength copper alloy---W content is the tungsten-copper alloy of 70% in the material employing of described top electrode 10 and bottom electrode 11.To ensure pole strength, and this material has good electric conductivity and processing characteristics, can by general machining operation (sawed-off--turning--face grinding--drilling and tapping--Ageing Treatment) processing process.
As shown in Figure 2, the cooling duct 12 of cylindricality, the cooling liquid inlet 13 laying respectively at two ends, described cooling duct 12 and cooling liquid outlet 14 is provided with in described top electrode 10 inside.In the present embodiment, described cooling liquid inlet 13 is arranged on top, described cooling duct 12, and described cooling liquid outlet 14 is arranged on bottom, described cooling duct 12.
Described spot welding machine electrode head also comprises cooling unit 15, and the cooling liquid inlet 13 of described top electrode 10 is connected with described cooling unit 15 respectively by pipeline (feed tube 16 and liquid back pipe 17) with cooling liquid outlet 14.Cooling fluid under the effect of described cooling unit 15, at described cooling unit 15, feed tube 16, cooling duct 12 and liquid back pipe 17 Inner eycle, can take away the unnecessary heat that described top electrode 10 produces in welding process.Described cooling unit 15 is water cooling unit, can also be oil cooling unit group, or the cooling unit of other types.
Constantly circulating cooling liquid is provided by cooling unit 15, described cooling fluid is directly cooled described top electrode 11 by cooling duct 12, cooling effect is good, reduces workpiece heat affected area on the one hand as far as possible, avoids localized heat to be out of shape, burns, burns the generation of limit phenomenon, improve welding quality, reduce temperature when electrode tip itself welds on the other hand, weaken the slag-off phenomenon of electrode tip in welding process itself, reduce the reconditioning number of times of electrode tip, enhance productivity, extend the service life of electrode tip.
In addition, according to the thickness of different plate, described in the present embodiment, top electrode 10 end is set to the diameter adapted.
Such as, when thickness of slab is 1mm, described top electrode 10 end diameter is 6mm; When thickness of slab is 1.5mm or 2mm, described top electrode 10 end diameter is 9mm; When thickness of slab is 2.5mm or 3mm, described top electrode 10 end diameter is 12mm; When thickness of slab is 4mm, described top electrode 10 end diameter is 15mm ~ 20mm.
Described top electrode 10 maximum gauge (being generally electrode waist diameter) is generally 20mm, in this application, described top electrode 10 maximum gauge also can adjust accordingly according to the actual requirements, accordingly, the diameter of described cooling duct 12 also does adaptive adjustment according to described top electrode 10 maximum gauge, with under the prerequisite meeting top electrode 10 intensity, make the diameter of described cooling duct 12 increase as far as possible, obtain best cooling effect.In the present embodiment, described top electrode 10 maximum gauge is 20mm, and corresponding cooling duct 12 diameter is 10mm ~ 12mm, is preferably 12mm.
The length of described cooling duct 12 and the length of described top electrode 10 adapt, and when the length of described top electrode 10 is larger, the length of described cooling duct 12 also increases thereupon, as long as can ensure that necessary mechanical strength just can.
Because the thickness of described top electrode 10 end diameter and plate matches, and while guarantee top electrode 10 fundamental strength, the diameter of described cooling duct 12 is chosen maximum, cooling effect is optimum, then the matching degree of nugget size and plate is high, weld strength can better meet instructions for use, meets the appearance required by A level curved surface such as peripheral element, accomplishes firm welding and flat appearance, effect attractive in appearance.
Described top electrode 10, bottom electrode 11 are connected with electric resistance welding unit 18 by the forced structure of taper, namely taper is bottom described top electrode 10 He bottom bottom electrode 11, described top electrode 10 waist and bottom electrode 11 waist are provided with the dismounting clamping part of depression, so that dismounting.
In the present embodiment, the taper angle bottom described top electrode 10 and the taper angle bottom bottom electrode 11 are 5.5 ° ~ 6 °, being preferably 5.7 °, with not reducing on the basis of electrode life, meeting sealing requirements.
In addition, for the ease of dismounting, replacing, maintenance, described top electrode 10, bottom electrode 11 can also be connected with electric resistance welding unit by gas thread structure, or, described top electrode 10, bottom electrode 11 are connected with electric resistance welding unit by helicitic texture, or other frame mode, this is no longer going to repeat them.
Embodiment two
Present embodiment discloses another kind of spot welding machine electrode head, described spot welding machine electrode head is used for the welding that thickness is not more than 4mm cold-rolled steel sheet, comprise top electrode and bottom electrode, described top electrode inside is provided with the cooling duct of cylindricality, the cooling liquid inlet laying respectively at two ends, described cooling duct and cooling liquid outlet.
Described spot welding machine electrode head also comprises cooling unit, and the cooling liquid inlet of described top electrode is connected with described cooling unit respectively by pipeline with cooling liquid outlet.
Be with above-described embodiment difference, as shown in Figure 4, in order to adapt to the demand of actual weldment shape, for the architectural characteristic of different product, described in power on very " 7 " type, or as shown in Figure 5, described in power on very " Z " type.
Spot welding machine electrode head described in the present embodiment not only can realize good cooling effect by cooling unit, improve welding quality, weaken the slag-off phenomenon of electrode tip in welding process itself, reduce the reconditioning number of times of electrode tip, enhance productivity, extend the service life of electrode tip, also there is the wider scope of application.
In addition, described top electrode 10 can also be other shapes such as " S " type, to expand its scope of application further.
Embodiment four
Present embodiment discloses a kind of mash welder, described mash welder comprises electric resistance welding unit and spot welding machine electrode head.Wherein, the spot welding machine electrode head that provides for above-mentioned any embodiment of described spot welding machine electrode head.
The mash welder that the present embodiment provides, due to the direct cooling that its spot welding machine electrode head had realizes described top electrode by the cooling duct that is arranged on top electrode inside and the cooling unit that is connected with described cooling duct, cooling effect is good, reduce workpiece heat affected area, weaken the slag-off phenomenon of electrode tip in welding process itself, avoid the generation of burning limit, burning phenomenon, reduce the reconditioning number of times of electrode tip, extend the service life of electrode tip, improve welding quality.
Above spot welding machine electrode head that the utility model provides and mash welder are described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (9)
1. a spot welding machine electrode head, comprises top electrode and bottom electrode, it is characterized in that, described top electrode inside is provided with the cooling duct of cylindricality, the cooling liquid inlet laying respectively at two ends, described cooling duct and cooling liquid outlet;
Described spot welding machine electrode head also comprises cooling unit, and the cooling liquid inlet of described top electrode is connected with described cooling unit respectively by pipeline with cooling liquid outlet.
2. spot welding machine electrode head according to claim 1, is characterized in that, described in power on very " 7 " type or " Z " type.
3. spot welding machine electrode head according to claim 1, it is characterized in that, described cooling unit is water chiller or oil cooling unit.
4. spot welding machine electrode head according to claim 1, it is characterized in that, described top electrode maximum gauge is 20mm, and described cooling duct diameter is 10mm ~ 12mm.
5. spot welding machine electrode head according to claim 1, it is characterized in that, described top electrode, bottom electrode are connected with electric resistance welding unit by the forced structure of taper.
6. spot welding machine electrode head according to claim 5, it is characterized in that, the taper angle bottom described top electrode and the taper angle bottom bottom electrode are 5.5 ° ~ 6 °.
7. spot welding machine electrode head according to claim 1, it is characterized in that, described top electrode, bottom electrode are connected with electric resistance welding unit by gas thread structure.
8. spot welding machine electrode head according to claim 1, it is characterized in that, described top electrode, bottom electrode are connected with electric resistance welding unit by helicitic texture.
9. a mash welder, comprises electric resistance welding unit and spot welding machine electrode head, it is characterized in that, described electrode tip is spot welding machine electrode head described in claim 1 ~ 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406036.5U CN204108509U (en) | 2014-07-22 | 2014-07-22 | A kind of spot welding machine electrode head and mash welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406036.5U CN204108509U (en) | 2014-07-22 | 2014-07-22 | A kind of spot welding machine electrode head and mash welder |
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| Publication Number | Publication Date |
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| CN204108509U true CN204108509U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420406036.5U Expired - Fee Related CN204108509U (en) | 2014-07-22 | 2014-07-22 | A kind of spot welding machine electrode head and mash welder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271272A (en) * | 2016-08-30 | 2017-01-04 | 上海奥林汽车配件有限公司 | A kind of fixing tool for electrode welder |
-
2014
- 2014-07-22 CN CN201420406036.5U patent/CN204108509U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271272A (en) * | 2016-08-30 | 2017-01-04 | 上海奥林汽车配件有限公司 | A kind of fixing tool for electrode welder |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee after: ZOOMLION HEAVY MACHINERY CO., LTD. Address before: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee before: Chery Heavy Industry Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |