CN110757055B - Auxiliary device for welding conical pipe joint - Google Patents
Auxiliary device for welding conical pipe joint Download PDFInfo
- Publication number
- CN110757055B CN110757055B CN201910902112.9A CN201910902112A CN110757055B CN 110757055 B CN110757055 B CN 110757055B CN 201910902112 A CN201910902112 A CN 201910902112A CN 110757055 B CN110757055 B CN 110757055B
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- pressing
- block
- thimble
- positioning block
- supporting seat
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses an auxiliary device for welding a conical pipe joint, and belongs to the field of manufacturing of pipe components of an aero-engine. The clamping device comprises a base, a positioning block arranged on the base, a pressing block arranged at the top end of the positioning block and hinged with the positioning block, and a supporting seat arranged on the base; a pressing groove is formed between the positioning block and the pressing block, a thimble is arranged between the supporting seat and the pressing groove, the front end of the thimble is arranged in the pressing groove, a screwing screw in threaded connection with the supporting seat is arranged on the supporting seat, the screwing screw penetrates through the supporting seat and is connected with the rear end of the thimble, and a conical jacking surface is arranged at the front end of the thimble, so that the invention has the advantages of convenient operation, labor and time saving and higher reliability; the welding deformation of parts is effectively reduced, the qualification rate of coloring inspection and sealing inspection of the conical surface after welding is improved, the production cost is greatly reduced, the company benefit is improved, and the welding method has great practical value.
Description
Technical Field
The invention relates to the field of manufacturing of pipe components of an aircraft engine, in particular to an auxiliary device for welding a conical pipe joint.
Background
As shown in figure 1, part of oil pipe components of a certain type of engine are formed by welding a pipe joint with a conical surface and a pipe, and the coloring inspection and the tightness inspection of the conical surface are required after welding, namely the coloring area is not less than 80 percent and the coloring area is continuously distributed on the whole circumference, and 3# aviation kerosene is used, the pressure is 6MPa, and 5Min is kept to prevent leakage. The conical surface connecting nozzle is a forged piece, the machining cutting amount is large, the residual stress is large, and the welding stress and the residual stress generated by local heating of parts during welding form a complex stress field, so that the conical surface of the pipe connector nozzle deforms, and the unqualified coloring inspection and sealing inspection of the conical surface after welding are easily caused.
Disclosure of Invention
The invention provides an auxiliary device for welding a conical pipe joint, aiming at the defects of the prior art, and the specific technical scheme is as follows:
an auxiliary device for welding a conical pipe joint is characterized by comprising a base, a positioning block arranged on the base, a pressing block arranged at the top end of the positioning block and hinged with the positioning block, and a supporting seat arranged on the base; a pressing groove is formed between the positioning block and the pressing block, a thimble is arranged between the supporting seat and the pressing groove, the front end of the thimble is arranged in the pressing groove, a screwing screw in threaded connection with the supporting seat is arranged on the supporting seat, the screwing screw penetrates through the supporting seat and is connected with the rear end of the thimble, and a conical pressing surface is arranged at the front end of the thimble.
According to the invention, an operator rotates the pressing block hinged with the positioning block, puts a part to be processed into the pressing groove, and puts the front end of the thimble into the inner cavity of the part to be processed. And then, rotating the pressing block in the opposite direction, and fixing the part to be processed in the pressing groove by using the pressing block to achieve the positioning and pressing effects. And then the screwing screw is rotated to enable the thimble connected with the screwing screw to be gradually close to the part to be processed, and finally the part to be processed is tightly jacked in the compaction groove through the matching of the conical jacking surface arranged at the front end of the thimble and the inner cavity of the part to be processed, so that the conical surface deformation of the part during welding is prevented.
Preferably, a vent hole is arranged in the thimble, and an air nozzle communicated with the vent hole is arranged at the rear end of the thimble.
According to the invention, the vent hole is matched with the air tap which is arranged at the rear end of the thimble and communicated with the vent hole, and the vent hole and the air tap form an argon channel for introducing argon during welding, so that the back of a welding seam is protected from being oxidized by the argon during welding.
Preferably, a circulating cooling channel is arranged in the pressing block, and a water cooling pipe communicated with the circulating cooling channel is arranged on the outer side of the pressing block.
According to the invention, the cooling liquid is conveyed to the circulating cooling channel arranged in the pressing block through the water cooling pipe, so that local high-temperature heat generated by welding of the part can be effectively transferred out, the heat dissipation of the part is accelerated, and the welding deformation of the part is reduced.
Preferably, a lock hook rotatably connected with the positioning block is arranged on the inner side of the positioning block, a fixing groove is formed in the lock hook, and a lock rod corresponding to the fixing groove is arranged on the inner side of the pressing block.
According to the invention, an operator opens the pressing block and puts the part to be processed into the pressing groove, and then closes the pressing block and rotates the lock hook which is rotationally connected with the positioning block, so that the lock rod is fixed in the fixing groove on the lock hook, and thus the functions of quickly clamping and pressing the part to be processed by the pressing block are realized.
Preferably, a stop block is arranged between the rear end of the thimble and the base.
The ejector pin is supported by the stop block arranged between the rear end of the ejector pin and the base, so that the situations of axial center deviation and the like of the ejector pin in the process of tightly ejecting a part are avoided, and the working efficiency of the ejector pin is improved.
Preferably, a conical pressing surface is arranged in the pressing groove.
According to the invention, the conical pressing surface arranged in the pressing groove is matched with the appearance of the part to be processed, so that the pressing effect of the pressing block on the part to be processed and the jacking effect of the thimble on the part to be processed are improved.
Preferably, the positioning block and the pressing block are made of red copper.
According to the invention, the positioning block and the pressing block which are processed by red copper materials with good heat dissipation effects are adopted, so that local high-temperature heat generated by welding of parts can be effectively dissipated, the heat dissipation of the parts is further accelerated, and the welding deformation of the parts is reduced.
The invention has the following beneficial effects:
according to the invention, the part to be processed is placed in the pressing groove by rotating the pressing block hinged with the positioning block, and the part to be processed is fixed in the pressing groove by using the pressing block to achieve the positioning and pressing effects. And then the screwing screw is rotated to enable the thimble connected with the screwing screw to be gradually close to the part to be processed, and finally the part to be processed is tightly jacked in the compaction groove through the matching of the conical jacking surface arranged at the front end of the thimble and the inner cavity of the part to be processed, so that the conical surface deformation of the part during welding is prevented. The invention has convenient operation, labor and time saving and higher reliability; the welding deformation of parts is effectively reduced, the qualification rate of coloring inspection and sealing inspection of the conical surface after welding is improved, the production cost is greatly reduced, the company benefit is improved, and the welding method has great practical value.
Drawings
FIG. 1 is a schematic structural view of a part;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic view of a positioning block according to the present invention;
FIG. 5 is a schematic structural view of the thimble of the present invention.
In the figure: 1-a base; 2-positioning blocks; 3-a compaction block; 4-a support seat; 5-a compaction groove; 6-a thimble; 7-screwing the screw; 71-conical jacking surfaces; 61-a vent hole; 62-air tap; 3-a compaction block; 31-a circulating cooling channel; 32-water cooling tubes; 8-a latch hook; 81-fixed groove; 82-locking bar; 9-a stop block; 51-tapered compression surface.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1 to 5, as shown in fig. 1, part of oil pipe components of an engine to be processed is formed by welding a pipe joint with a conical surface and a pipe, the oil pipe component comprises a base 1 for serving as a support platform, a positioning block 2 arranged on the base 1 for positioning the part to be processed, and a pressing block 3 arranged at the top end of the positioning block 2 and hinged to the positioning block 2, wherein the pressing block 3 realizes the rotary connection of the positioning block 2 and a rotating shaft block through rotating shafts arranged on the positioning block 2 and the pressing block 3. The positioning block 2 and the pressing block 3 are made of red copper, and the positioning block 2 and the pressing block 3 are made of red copper materials with good heat dissipation effects, so that local high-temperature heat generated by welding of parts can be effectively dissipated, the heat dissipation of the parts is further accelerated, and the welding deformation of the parts is reduced.
With further reference to fig. 2 to 3, a pressing groove 5 for placing a part to be machined is arranged between the positioning block 2 and the pressing block 3, and a conical pressing surface 51 is arranged in the pressing groove 5, so that the pressing effect of the pressing block 3 on the part to be machined and the jacking effect of the ejector pin 6 on the part to be machined are improved by matching the conical pressing surface 51 arranged in the pressing groove 5 with the appearance of the part to be machined. An operator rotates the pressing block 3 hinged with the positioning block 2 and places a part to be processed into the pressing groove 5, then rotates the pressing block 3 in the opposite direction, and fixes the part to be processed in the pressing groove 5 by using the pressing block 3, so that the positioning and pressing effects are achieved. The inner side of the positioning block 2 is provided with a locking hook 8 which is rotatably connected with the positioning block 2, the locking hook 8 is provided with a fixing groove 81, and the inner side of the pressing block 3 is provided with a locking rod 82 corresponding to the fixing groove 81. An operator opens the pressing block 3 and puts a part to be processed into the pressing groove 5, and the locking hook 8 which is rotationally connected with the positioning block 2 is rotated after the pressing block 3 is closed, so that the locking rod 82 is fixed in the fixing groove 81 on the locking hook 8, and the function of quickly clamping and pressing the part to be processed by the pressing block 3 is realized.
Referring to fig. 3 to 5, a supporting seat 4 is arranged on the base 1 and at the rear end of the pressing block 3, an ejector pin 6 for tightly ejecting the part to be processed in the pressing groove 5 is arranged between the supporting seat 4 and the pressing groove 5, and a tapered ejecting surface 71 corresponding to the tapered surface of the inner cavity of the part is arranged at the front end of the ejector pin 6. A stop block 9 is arranged between the rear end of the thimble 6 and the base 1. According to the invention, the thimble 6 is supported by the stop block 9 arranged between the rear end of the thimble 6 and the base 1, so that the situations of axial deviation and the like of the thimble 6 in the process of tightly jacking a part are avoided, and the working efficiency of the thimble 6 is improved. The front end of the thimble 6 is arranged in the pressing groove 5 and tightly pushes the part to be processed in the pressing groove 5, the supporting seat 4 is provided with a screwing screw 7 in threaded connection with the supporting seat 4, and the screwing screw 7 penetrates through the supporting seat 4 and is connected with the rear end of the thimble 6.
In the invention, an operator rotates the pressing block 3 hinged with the positioning block 2, puts a part to be processed into the pressing groove 5, and puts the front end of the thimble 6 into the inner cavity of the part to be processed. And then, the pressing block 3 is rotated in the opposite direction, and the part to be processed is fixed in the pressing groove 5 by using the pressing block 3, so that the positioning and pressing effects are achieved. And then the screwing screw 7 is rotated to enable the thimble 6 connected with the screwing screw 7 to be gradually close to the part to be processed, and finally the part to be processed is tightly pressed in the pressing groove 5 through the matching of the conical pressing surface 71 arranged at the front end of the thimble 6 and the inner cavity of the part to be processed, so that the conical surface deformation of the part during welding is prevented.
Referring to fig. 2 to 5, a vent hole 61 communicated with the substitute machining part is formed in the thimble 6, and an air nozzle 62 communicated with the vent hole 61 is formed at the rear end of the thimble 6. According to the invention, through the cooperation of the vent hole 61 and the air tap 62 which is arranged at the rear end of the thimble 6 and communicated with the vent hole 61, the vent hole 61 and the air tap 62 form an argon gas channel for introducing argon gas into an operator in a welding process, so that the back of a welding seam is protected from being oxidized by the argon gas in the welding process. Be equipped with circulative cooling passageway 31 in the compact heap 3, the compact heap 3 outside is equipped with the water-cooled tube 32 that communicates with circulative cooling passageway 31, carries the coolant liquid through water-cooled tube 32 and sets up circulative cooling passageway 31 in compact heap 3, can effectively with the local high temperature heat transfer who produces because the part welding away for the part heat dissipation has reduced the welding deformation of part.
According to the invention, the part to be processed is placed in the pressing groove 5 by rotating the pressing block 3 hinged with the positioning block 2, and the part to be processed is fixed in the pressing groove 5 by using the pressing block 3 to achieve the positioning and pressing effects. And then the screwing screw 7 is rotated to enable the thimble 6 connected with the screwing screw 7 to be gradually close to the part to be processed, and finally the part to be processed is tightly pressed in the pressing groove 5 through the matching of the conical pressing surface 71 arranged at the front end of the thimble 6 and the inner cavity of the part to be processed, so that the conical surface deformation of the part during welding is prevented. The invention has convenient operation, labor and time saving and higher reliability; the welding deformation of parts is effectively reduced, the qualification rate of coloring inspection and sealing inspection of the conical surface after welding is improved, the production cost is greatly reduced, the company benefit is improved, and the welding method has great practical value.
It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An auxiliary device for welding a conical pipe joint is characterized by comprising a base (1), a positioning block (2) arranged on the base (1), a pressing block (3) arranged at the top end of the positioning block (2) and hinged with the positioning block (2), and a supporting seat (4) arranged on the base (1);
a pressing groove (5) is formed between the positioning block (2) and the pressing block (3), an ejector pin (6) is arranged between the supporting seat (4) and the pressing groove (5), the front end of the ejector pin (6) is arranged in the pressing groove (5), a screwing screw (7) in threaded connection with the supporting seat (4) is arranged on the supporting seat (4), the screwing screw (7) penetrates through the supporting seat (4) and is connected with the rear end of the ejector pin (6), a conical jacking surface (71) is arranged at the front end of the ejector pin (6), and the conical jacking surface (71) is matched with an inner cavity of a part to be processed;
a conical pressing surface (51) matched with the shape of the part to be processed is arranged in the pressing groove (5);
a locking hook (8) rotatably connected with the positioning block (2) is arranged on the inner side of the positioning block (2), a fixing groove (81) is formed in the locking hook (8), and a locking rod (82) corresponding to the fixing groove (81) is arranged on the inner side of the pressing block (3);
a stop block (9) is arranged between the rear end of the thimble (6) and the base (1).
2. The auxiliary device for the conical pipe joint welding according to claim 1, wherein a vent hole (61) is formed in the thimble (6), and an air nozzle (62) communicated with the vent hole (61) is formed at the rear end of the thimble (6).
3. The auxiliary device for conical tube joint welding according to claim 1, characterized in that a circulating cooling channel (31) is arranged in the compression block (3), and a water cooling tube (32) communicated with the circulating cooling channel (31) is arranged outside the compression block (3).
4. The auxiliary device for bevel pipe joint welding according to claim 1, wherein the positioning block (2) and the pressing block (3) are made of red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902112.9A CN110757055B (en) | 2019-09-24 | 2019-09-24 | Auxiliary device for welding conical pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902112.9A CN110757055B (en) | 2019-09-24 | 2019-09-24 | Auxiliary device for welding conical pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110757055A CN110757055A (en) | 2020-02-07 |
| CN110757055B true CN110757055B (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910902112.9A Active CN110757055B (en) | 2019-09-24 | 2019-09-24 | Auxiliary device for welding conical pipe joint |
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| Country | Link |
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| CN (1) | CN110757055B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1965665B2 (en) * | 1968-12-31 | 1980-11-27 | Jean-Pierre Chilly Mazarin Essonne Peyrot (Frankreich) | Pliers device for centering and holding workpieces that are butted together |
| CN202684441U (en) * | 2012-07-24 | 2013-01-23 | 中煤第三建设（集团）有限责任公司 | Simple pipe fitting butt joint device |
| CN107378365A (en) * | 2017-06-08 | 2017-11-24 | 合肥职业技术学院 | A kind of automobile pipeline fixed-position welding device and its technique |
| CN207508596U (en) * | 2017-10-31 | 2018-06-19 | 天津鑫凯建业科技有限公司 | A kind of modified form pipe General welding lathe |
| CN109693059A (en) * | 2019-03-13 | 2019-04-30 | 重庆科技学院 | A kind of pipeline welding back side inflatable protective device |
-
2019
- 2019-09-24 CN CN201910902112.9A patent/CN110757055B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1965665B2 (en) * | 1968-12-31 | 1980-11-27 | Jean-Pierre Chilly Mazarin Essonne Peyrot (Frankreich) | Pliers device for centering and holding workpieces that are butted together |
| CN202684441U (en) * | 2012-07-24 | 2013-01-23 | 中煤第三建设（集团）有限责任公司 | Simple pipe fitting butt joint device |
| CN107378365A (en) * | 2017-06-08 | 2017-11-24 | 合肥职业技术学院 | A kind of automobile pipeline fixed-position welding device and its technique |
| CN207508596U (en) * | 2017-10-31 | 2018-06-19 | 天津鑫凯建业科技有限公司 | A kind of modified form pipe General welding lathe |
| CN109693059A (en) * | 2019-03-13 | 2019-04-30 | 重庆科技学院 | A kind of pipeline welding back side inflatable protective device |
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| Publication number | Publication date |
|---|---|
| CN110757055A (en) | 2020-02-07 |
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