CN102837100B - Flame brazing welding machine and pipe joint protecting tool thereof - Google Patents
Flame brazing welding machine and pipe joint protecting tool thereof Download PDFInfo
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- CN102837100B CN102837100B CN201210328319.8A CN201210328319A CN102837100B CN 102837100 B CN102837100 B CN 102837100B CN 201210328319 A CN201210328319 A CN 201210328319A CN 102837100 B CN102837100 B CN 102837100B
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- pipe joint
- protecting tool
- joint protecting
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Abstract
The invention discloses a pipe joint protecting tool. A main body of the pipe joint protecting tool is of a cylindrical structure; one end of the main body is a thread protecting end; the other end of the main body is an interface end connected with the welding machine; an abutting plate is arranged at the position, which is close to the interface end, of the inner wall of the main body; and a nitrogen filling port is formed in the abutting plate. Therefore, the pipe joint protecting tool can be arranged on the welding machine through the interface end. When a pipe joint is required to be welded with workpieces, the thread end of the joint is only required to be inserted to the thread protecting end of the pipe joint protecting tool. Compared with a mode of screwing the thread end of the pipe joint into a brass nut in the prior art, the mode applied in the pipe joint protecting tool disclosed by the invention has the characteristics that the disassembly and assembly process is time and labor saving, the work time is saved and the work efficiency is improved; meanwhile, the main body of the pipe joint protecting tool is of the cylindrical structure and has no structure that threads are easily damaged, so that the service period of the pipe joint protecting tool is longer and the maintenance cost is reduced. The invention also discloses a flame brazing welding machine with the pipe joint protecting tool.
Description
Technical field
The present invention relates to gas brazing technical field, particularly a kind of gas brazing bonding machine and pipe joint protecting tool set-up thereof.
Background technology
Soldering: refer to and use than the low-melting metal material of mother metal as solder, with the wetting mother metal of liquid solder with fill workpiece interface gaps, and make itself and the welding method of mother metal phase counterdiffusion.
Gas brazing: the soldering of heating with flame of combustible gases.
Pipe joint: connecting line or pipeline is contained in to the part on Hydraulic Elements is a kind of general name of the connector that can install and remove in fluid passage.
In air conditioner refrigerating and attached industry thereof, generally adopt gas brazing that pipe joint is soldered on workpiece at present, be specially the nut end of pipe joint is soldered on workpiece, thereby the end of thread of pipe joint can be connected with another workpiece.The extreme temperatures of flame; for fear of in welding process; thermal-flame causes damage to the end of thread of pipe joint; frock clamp end at bonding machine is provided with the brass nut matching with the end of thread of pipe joint; when welding; the end of thread of pipe joint is screwed in brass nut, and brass nut can be protected by double thread end, makes it not be subject to the impact of thermal-flame.After having welded, the workpiece with pipe joint is unloaded from the brass nut of bonding machine.But this bonding machine is after multiple welding, brass nut interior tissue changes, also there are certain wearing and tearing in screw thread, finally causes brass nut and pipe joint handling difficulty, and unloading process takes time and effort, when serious wear, just need to scrap processing, life cycle is short, has increased maintenance cost.
After having welded, in the weld of workpiece and pipe joint and this weld a slice heat affected area around, temperature is all higher, even after adopting pressure-air cooling, its surface temperature is also just down to 300 DEG C of left and right, and workman, in the time of the workpiece of taking after welding, still exists scald hidden danger, be pressure-air cooling after, still need to be under nature cooling 30-45min, waste man-hour, affect subsequent production process.
Therefore, how to provide a kind of pipe joint protecting tool set-up, its convenient disassembly and life cycle are longer, can increase work efficiency, and reduce maintenance cost simultaneously, are the technical problems that those skilled in the art need solution badly.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is for providing a kind of pipe joint protecting tool set-up, and this pipe joint protecting tool set-up convenient disassembly and life cycle are longer, can increase work efficiency, and reduce maintenance cost simultaneously.
For solving the problems of the technologies described above; the invention provides a kind of pipe joint protecting tool set-up; it is characterized in that; the main body of described pipe joint protecting tool set-up is tubular structure; one end of described main body is screw thread protection end; the other end is the interface end being connected with bonding machine, and the inwall of described main body is provided with butt plate near the position of described interface end, and described butt plate be provided with run through along its thickness direction fill nitrogen hole.
Preferably, in above-mentioned pipe joint protecting tool set-up, described in fill nitrogen hole and be positioned at described butt plate central authorities.
Preferably, in above-mentioned pipe joint protecting tool set-up, on described butt plate, be also provided with described and fill the nitrogen blanketing valve that nitrogen hole is connected.
Preferably, in above-mentioned pipe joint protecting tool set-up, the top of described nitrogen blanketing valve is lower than the top of described screw thread protection end.
Preferably, in above-mentioned pipe joint protecting tool set-up, the top of described nitrogen blanketing valve is lower than the top 20mm of described screw thread protection end.
Preferably, in above-mentioned pipe joint protecting tool set-up, the described main body between described butt plate and described nitrogen blanketing valve top is provided with draining window.
Preferably, in above-mentioned pipe joint protecting tool set-up, described draining window is two, and is oppositely arranged in described main body.
Preferably, in above-mentioned pipe joint protecting tool set-up, the end face You Qi center of described butt plate is downward-sloping to outer rim direction.
Preferably, in above-mentioned pipe joint protecting tool set-up, the main body of described pipe joint protecting tool set-up is made up of resistant to elevated temperatures metal.
With respect to prior art, technique effect of the present invention is:
Pipe joint protecting tool set-up provided by the invention; its main body is tubular structure; one end of main body is screw thread protection end; the other end is the interface end being connected with bonding machine; the inwall of this main body is provided with butt plate near the position of interface end, on this butt plate, be provided with run through along its thickness direction fill nitrogen hole.
Known, when interface end of the present invention is plugged on bonding machine, butt plate is connected on bonding machine, the present invention can be mounted on bonding machine, when welding, oxidized for fear of workpiece and pipe joint, bonding machine can fill nitrogen to weld by the nitrogen hole of filling being arranged on butt plate.When needs are during by the welding of pipe joint and workpiece, only need the end of thread of pipe joint to be plugged to screw thread protection end of the present invention, in prior art, need the end of thread of pipe joint to be threaded in brass nut, disassembly process of the present invention is time saving and energy saving, save man-hour, improved operating efficiency; Because main body of the present invention is tubular structure, do not have the easy damage structure of screw thread, therefore its life cycle is longer, has reduced maintenance cost simultaneously.
The invention also discloses a kind of gas brazing bonding machine, comprise bonding machine main body and be arranged on the pipe joint protecting tool set-up in described bonding machine main body, described pipe joint protecting tool set-up is above-mentioned pipe joint protecting tool set-up.Because above-mentioned pipe joint protecting tool set-up has above-mentioned technique effect, the gas brazing bonding machine with above-mentioned pipe joint protecting tool set-up also should possess corresponding technique effect.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the structural representation of pipe joint protecting tool set-up provided by the invention;
Fig. 2 is the cutaway view of pipe joint protecting tool set-up provided by the invention;
Fig. 3 is the side view of pipe joint protecting tool set-up provided by the invention.
In upper figure, the corresponding relation between Reference numeral and component names is:
1 screw thread protection end; 2 interface end; 3 butt plates; 4 nitrogen blanketing valves; 5 draining windows.
Detailed description of the invention
Core of the present invention is for providing a kind of pipe joint protecting tool set-up, and this pipe joint protecting tool set-up convenient disassembly and life cycle are longer, can increase work efficiency, and reduce maintenance cost simultaneously.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1-Fig. 3, Fig. 1 is the structural representation of pipe joint protecting tool set-up provided by the invention; Fig. 2 is the cutaway view of pipe joint protecting tool set-up provided by the invention; Fig. 3 is the side view of pipe joint protecting tool set-up provided by the invention.
The pipe joint protecting tool set-up that the embodiment of the present invention provides; its main body is tubular structure; one end of main body is screw thread protection end 1; the other end is the interface end 2 being connected with bonding machine; the inwall of this main body is provided with butt plate 3 near the position of interface end 2, on this butt plate 3, be provided with run through along its thickness direction fill nitrogen hole.
Known, when interface end 2 of the present invention is plugged on bonding machine, butt plate 3 is connected on bonding machine, the present invention can be mounted on bonding machine, when welding, oxidized for fear of workpiece and pipe joint, bonding machine can fill nitrogen to weld by the nitrogen hole of filling being arranged on butt plate 3.When needs are during by the welding of pipe joint and workpiece, only need the end of thread of pipe joint to be plugged to screw thread protection end 1 of the present invention, in prior art, need the end of thread of pipe joint to be threaded in brass nut, disassembly process of the present invention is time saving and energy saving, save man-hour, improved operating efficiency; Because main body of the present invention is tubular structure, do not have the easy damage structure of screw thread, therefore its life cycle is longer, has reduced maintenance cost simultaneously.
Particularly, above-mentioned central authorities of filling nitrogen hole and be positioned at butt plate 3.Nitrogen can evenly diffuse to the weld of workpiece and pipe joint like this, has optimized the effect of anti-oxidation.Further, on butt plate 3, be also provided with and the nitrogen blanketing valve 4 that fills nitrogen hole and be connected.Directly nitrogen is sent to weld by this nitrogen blanketing valve 4.This nitrogen blanketing valve 4 is positioned at the inside of the tubular structure of main body of the present invention, the present invention protects the end of thread of pipe joint to screw thread protection end 1, screw thread protection end 1 butt is to the nut of pipe joint, known this place is the weld of pipe joint and workpiece, therefore, the top of above-mentioned nitrogen blanketing valve 4 will be lower than the top of screw thread protection end 1, so that nitrogen is sent in weld and heat-affected zone thereof, particularly, in a kind of specific embodiment provided by the invention, the top of nitrogen blanketing valve 4 is lower than the top 20mm of screw thread protection end 1, can make the distribution of nitrogen the most reasonable, not too low, make the region inflated with nitrogen having influence on to not soldered, high only, make the soldered region having influence on not be charged to nitrogen.
After welding; in the weld of workpiece and pipe joint and this weld a slice heat affected area around, temperature is all higher; because the present invention is tubular protection structure, therefore, can directly adopt water-cooled cooling; directly be sprayed onto main body of the present invention outside by cooling water; can realize fast cooling, cooling than pressure-air of the prior art after, naturally cooling; the present invention has eliminated the stand-by period of a rear operation, has saved man-hour.
In order further to optimize technique scheme, in the present invention, in the main body between butt plate 3 and nitrogen blanketing valve 4, be provided with draining window 5, be that cooling water can directly be sprayed onto on the nitrogen blanketing valve 4 that the present invention is subject to welding heat affected maximum, this nitrogen blanketing valve 4 is directly to contact with the end of thread of pipe joint, therefore, water is sprayed onto to nitrogen blanketing valve 4, can improves water-cooled effect of the present invention.After current spray into, because the setting position of this draining window 5 is between butt plate 3 and the top of nitrogen blanketing valve 4, therefore, can not enter the interior survey of nitrogen blanketing valve 4 on the one hand, flow in bonding machine along nitrogen blanketing valve 4; On the other hand, can directly flow out along the end face of butt plate 3.Further, flow down along the end face of butt plate 3 in order to be more convenient to cooling water, in the present invention, the end face You Qi center of butt plate 3 is downward-sloping to outer rim direction.
It should be noted that raw material of the present invention optional high temperature resistant, be convenient to machining, corrosion resistant metal, as red copper, brass, stainless steel etc.The present invention is preferably red copper.
The invention also discloses a kind of gas brazing bonding machine, comprise bonding machine main body and be arranged on the pipe joint protecting tool set-up in bonding machine main body, this pipe joint protecting tool set-up is above-mentioned pipe joint protecting tool set-up.Because above-mentioned pipe joint protecting tool set-up has above-mentioned technique effect, the gas brazing bonding machine with above-mentioned pipe joint protecting tool set-up also should possess corresponding technique effect.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a pipe joint protecting tool set-up; it is characterized in that; the main body of described pipe joint protecting tool set-up is tubular structure; one end of described main body is screw thread protection end (1); the other end is the interface end (2) being connected with bonding machine; the inwall of described main body is provided with butt plate (3) near the position of described interface end, and described butt plate be provided with run through along its thickness direction fill nitrogen hole.
2. pipe joint protecting tool set-up according to claim 1, is characterized in that, described in fill nitrogen hole and be positioned at described butt plate (3) central authorities.
3. pipe joint protecting tool set-up according to claim 2, is characterized in that, is also provided with described and fills the nitrogen blanketing valve (4) that nitrogen hole is connected on described butt plate (3).
4. pipe joint protecting tool set-up according to claim 3, is characterized in that, the top of described nitrogen blanketing valve (4) is lower than the top of described screw thread protection end (1).
5. pipe joint protecting tool set-up according to claim 4, is characterized in that, the top of described nitrogen blanketing valve (4) is lower than the top 20mm of described screw thread protection end (1).
6. pipe joint protecting tool set-up according to claim 3, is characterized in that, the described main body between described butt plate (3) and the top of described nitrogen blanketing valve (4) is provided with draining window (5).
7. pipe joint protecting tool set-up according to claim 6, is characterized in that, described draining window (5) is two, and is oppositely arranged in described main body.
8. pipe joint protecting tool set-up according to claim 7, is characterized in that, the end face You Qi center of described butt plate (3) is downward-sloping to outer rim direction.
9. according to the pipe joint protecting tool set-up described in claim 1-8 any one, it is characterized in that, the main body of described pipe joint protecting tool set-up is made up of resistant to elevated temperatures metal.
10. a gas brazing bonding machine, comprises bonding machine main body and is arranged on the pipe joint protecting tool set-up in described bonding machine main body, it is characterized in that, described pipe joint protecting tool set-up is the pipe joint protecting tool set-up as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210328319.8A CN102837100B (en) | 2012-09-06 | 2012-09-06 | Flame brazing welding machine and pipe joint protecting tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210328319.8A CN102837100B (en) | 2012-09-06 | 2012-09-06 | Flame brazing welding machine and pipe joint protecting tool thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102837100A CN102837100A (en) | 2012-12-26 |
| CN102837100B true CN102837100B (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210328319.8A Active CN102837100B (en) | 2012-09-06 | 2012-09-06 | Flame brazing welding machine and pipe joint protecting tool thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341696A (en) * | 2013-07-17 | 2013-10-09 | 中国一冶集团有限公司 | Method and device for protecting internal threads of pup joint of meter |
| CN104747828A (en) * | 2015-03-27 | 2015-07-01 | 大连新钢液压管件有限公司 | Brazing type clamping sleeve connector |
| CN108180330A (en) * | 2017-12-20 | 2018-06-19 | 长沙格力暖通制冷设备有限公司 | Nitrogen charging connector |
| CN112355426B (en) * | 2020-10-28 | 2022-03-29 | 中国航发贵州黎阳航空动力有限公司 | Protective device for nuts with anodized layers in flame brazing process |
| CN113172297B (en) * | 2021-03-30 | 2022-07-05 | 郑州大轻自动化设备有限公司 | Special ceramic frock of induction brazing |
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| CN201140322Y (en) * | 2008-01-05 | 2008-10-29 | 广东精艺金属股份有限公司 | Throttling back nitrogen feed protecting apparatus |
| CN201471044U (en) * | 2009-08-20 | 2010-05-19 | 广东精艺金属股份有限公司 | Automatic flame welding machine |
| CN201664826U (en) * | 2010-01-08 | 2010-12-08 | 珠海格力电器股份有限公司 | Welding and positioning device of four-hole distributor |
| CN201711700U (en) * | 2010-05-20 | 2011-01-19 | 宁波奥克斯空调有限公司 | Welding tool general for an air condition air inlet pipe assembly |
| CN202845987U (en) * | 2012-09-06 | 2013-04-03 | 珠海格力电器股份有限公司 | Flame brazing welder and pipe joint protection tool thereof |
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2012
- 2012-09-06 CN CN201210328319.8A patent/CN102837100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201140322Y (en) * | 2008-01-05 | 2008-10-29 | 广东精艺金属股份有限公司 | Throttling back nitrogen feed protecting apparatus |
| CN201471044U (en) * | 2009-08-20 | 2010-05-19 | 广东精艺金属股份有限公司 | Automatic flame welding machine |
| CN201664826U (en) * | 2010-01-08 | 2010-12-08 | 珠海格力电器股份有限公司 | Welding and positioning device of four-hole distributor |
| CN201711700U (en) * | 2010-05-20 | 2011-01-19 | 宁波奥克斯空调有限公司 | Welding tool general for an air condition air inlet pipe assembly |
| CN202845987U (en) * | 2012-09-06 | 2013-04-03 | 珠海格力电器股份有限公司 | Flame brazing welder and pipe joint protection tool thereof |
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| CN102837100A (en) | 2012-12-26 |
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