CN114101953A - Connecting process of multi-structural piece - Google Patents
Connecting process of multi-structural piece Download PDFInfo
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- CN114101953A CN114101953A CN202111346788.8A CN202111346788A CN114101953A CN 114101953 A CN114101953 A CN 114101953A CN 202111346788 A CN202111346788 A CN 202111346788A CN 114101953 A CN114101953 A CN 114101953A
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- Prior art keywords
- pipe
- expanding
- welding
- base plate
- sleeve
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Classifications
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a connecting process of a multi-structural piece, which comprises a lower pipe, a middle cover and an upper pipe, and comprises the following steps: step one, pipe expanding is performed under the condition of pipe arrangement, step two, slotting is performed, step three, welding preparation is performed, and step four, welding is performed; through optimizing welding process for the through-hole of middle lid only overlaps outside the low tube, and the low tube cover is on the upper tube, overlaps mutually in proper order like this and makes to connect more firm, only needs the port part of hot melt low tube just can link together middle lid, low tube and upper tube automatically during the welding simultaneously, and is more convenient during the welding, can not appear the gap moreover.
Description
Technical Field
The invention relates to the field of machining, in particular to a connecting process of a multi-structural piece.
Background
Often more troublesome when a plurality of pipe fittings link together with other structures, between pipe fitting and the pipe fitting, all need weld between pipe fitting and the hole, all need do the auxiliary connection with the welding rod during the welding, this not only needs to carry out a lot of welding, very troublesome in the time of welding moreover at every turn, the gap still appears in the biggest problem easily.
Especially, when a plurality of pipe fittings and other structures need to be connected at the same place, often only the welding edge position can lead to the middle part to appear fretwork for joint strength is not enough.
Disclosure of Invention
The invention aims to provide a connecting process of a multi-structural part, which is characterized in that through optimization of a welding process, a through hole of a middle cover is only sleeved outside a lower pipe, and the lower pipe is sleeved on an upper pipe, so that connection is firmer due to sequential sleeving, meanwhile, the middle cover, the lower pipe and the upper pipe can be automatically connected together only by hot melting of a port part of the lower pipe during welding, welding is more convenient, and no gap is formed.
A process for joining multiple structural members, comprising a lower tube, an intermediate lid and an upper tube, comprising the steps of:
step one, expanding the pipe under the pipe,
carrying out pipe expanding operation on the connecting port of the lower pipe through a pipe expanding mechanism, and transforming the connecting port of the lower pipe into an outer expanding pipe sleeve, so that the inner diameter of the outer expanding pipe sleeve is larger than or equal to the outer diameter of the upper pipe;
step two, slotting the slot,
slotting the externally expanded pipe sleeve in the vertical direction, and cutting a plurality of buffer slots with equal intervals by a cutting machine;
step three, preparing for welding,
fixing a lower pipe, an intermediate cover and an upper pipe on a welding table from bottom to top, wherein an external expanding pipe sleeve of the lower pipe penetrates through a through hole in the intermediate cover and is partially exposed, and inserting the upper pipe into the external expanding pipe sleeve;
step four, welding is carried out,
and aligning the welding gun to the part of the outer expanding pipe sleeve exposed from the upper part of the middle cover in the third step, melting the part, connecting the part with the middle cover and the upper pipe together, and realizing the connection and fixation of the pipe, the middle cover and the upper pipe.
Preferably, the pipe expanding mechanism comprises a base plate, a conveying trolley, a hot melting furnace, a pipe expanding mold and a motor, wherein the conveying trolley is connected to the base plate in a sliding mode, the hot melting furnace and the pipe expanding mold are fixedly connected to the base plate, the pipe expanding mold is fixedly connected to the rear side of the hot melting furnace, the motor is fixedly connected to the base plate and an output shaft of the motor, the screw is in threaded connection with the conveying trolley, and two groups of fixing rings used for fixing a lower pipe are arranged on the conveying trolley.
Preferably, the welding table comprises a base table and a cover supporting table, the cover supporting table is fixedly connected to the upper end of the base table and provided with a fixed magnetic ring, and a through lower pipe groove is formed in the center of the base table and the center of the cover supporting table.
Preferably, in the second step, the number of the buffer seams is 4 or 6, and the depth of the buffer seams is less than or equal to the length of the exposed part of the outer expanding sleeve above the middle cover in the third step.
Preferably, the base plate is provided with two slide rails, a limiting plate fixedly connected with the base plate is arranged behind the slide rails, the conveying trolley is connected to the slide rails in a sliding mode, a driving block is fixedly connected to the middle of the bottom of the conveying trolley, and the driving block is in threaded connection with the screw rod.
Preferably, the hot melting furnace and the pipe expanding die are fixedly connected to the base plate through a base, the front end of the screw rod is rotatably connected to the base, and a pipe expanding cone is fixedly arranged at the center in the pipe expanding die.
Preferably, the rear of slide rail is equipped with the limiting plate with base plate fixed connection, gu be equipped with the bolt that is used for opening the closed loop on the fixed ring.
The invention has the advantages that: through optimizing welding process for the through-hole of middle lid only overlaps outside the low tube, and the low tube cover is on the upper tube, overlaps mutually in proper order like this and makes to connect more firm, only needs the port part of hot melt low tube just can link together middle lid, low tube and upper tube automatically during the welding simultaneously, and is more convenient during the welding, can not appear the gap moreover.
Drawings
FIG. 1 is a schematic view of a down tube processing of the present invention;
FIG. 2 is a schematic view of a process modification of the present invention during welding;
FIG. 3 is a schematic structural view of a pipe expanding mechanism in the apparatus of the present invention;
FIG. 4 is a side view of the tube expanding mechanism of the apparatus of the present invention;
FIG. 5 is a schematic view showing the internal structure of the tube expanding mechanism in the apparatus of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5;
FIG. 7 is a schematic view of the structure of a soldering station in the apparatus of the present invention;
FIG. 8 is a schematic view of the connection of the lower tube, the intermediate cap and the upper tube in the apparatus of the present invention;
01, a lower pipe, 02, an intermediate cover, 03, an upper pipe, 04, an outer pipe expanding sleeve, 05, a buffer seam, 1, a base plate, 2, a conveying trolley, 3, a sliding rail, 4, a base, 5, a hot melting furnace, 6, a pipe expanding die, 7, a fixing ring, 8, a motor, 9, a screw rod, 10, a limiting plate, 11, a driving block, 12, a bolt, 13, a pipe expanding cone, 14, a base table, 15, a cover supporting table, 16, a lower pipe groove, 17 and a fixing magnetic ring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 8, the workpiece of the present invention includes a lower tube 01, a middle cover 02 and an upper tube 03, and the processing process includes the steps of:
firstly, the pipe expanding mechanism expands the connecting port of the lower pipe 01 into the outer expanding pipe sleeve 04, so that the inner diameter of the outer expanding pipe sleeve 04 is larger than or equal to the outer diameter of the upper pipe 03, and the outer diameter of the outer expanding pipe sleeve 04 is smaller than the inner diameter of the connecting through hole of the middle cover 02.
And secondly, slotting the expanded pipe sleeve 04 in the vertical direction, cutting a plurality of equally spaced buffer slots 05 by a cutting machine, wherein the number of the buffer slots 05 is 4 or 6, and the best result is obtained. The purpose of the slot is that the difference between the outer diameter of the lower pipe 01 and the inner diameter of the connecting through hole of the middle cover 02 is not large, after the pipe expanding treatment is carried out, the outer diameter of the outer expanding pipe sleeve 04 is very close to the inner diameter of the connecting through hole of the middle cover 02 (basically, the outer expanding pipe sleeve and the connecting through hole are in excessive or interference fit when the outer expanding pipe sleeve and the connecting through hole are connected), the outer expanding pipe sleeve 04 is deformed due to slight collision, and the outer expanding pipe sleeve 04 cannot be inserted into the connecting through hole of the middle cover 02 easily.
Thirdly, the lower pipe 01, the middle cover 02 and the upper pipe 03 are fixed on a welding table from bottom to top, wherein the lower pipe 01 is inserted into a lower pipe groove 16, then the middle cover 02 is sleeved on an outer expanding pipe sleeve 04 of the lower pipe 01 from top to bottom, meanwhile, the middle cover 02 is pressed on a cover supporting table 15 and is relatively fixed with the cover supporting table 15 through a fixing magnetic ring 17, and finally, the upper pipe 03 is inserted into the outer expanding pipe sleeve 04.
It is to be noted that the depth of the buffer slit 05 opened in the second step is smaller than or equal to the length of the portion of the outer diffuser sleeve 04 exposed above the intermediate cover 02.
And fourthly, aligning the welding gun to the part of the middle outer expanding sleeve 04 exposed from the upper part of the middle cover 02, melting the part, connecting the part with the middle cover 02 and the upper pipe 03 together, and realizing the connection and fixation of the pipe 01, the middle cover 02 and the upper pipe 03.
In the first step, the pipe expanding mechanism used in the pipe expanding operation comprises a base plate 1, a conveying trolley 2, a hot melting furnace 5, a pipe expanding die 6 and a motor 8, wherein two sliding rails 3 are arranged on the base plate 1, a limiting plate 10 fixedly connected with the base plate 1 is arranged behind the slide rail 3, the conveying trolley 2 is connected on the slide rail 3 in a sliding way, the hot melting furnace 5 and the pipe expanding die 6 are fixedly connected on the base plate 1 through a base 4, and the pipe expanding die 6 is fixedly connected with the rear side of the hot melting furnace 5, a pipe expanding cone 13 is fixedly arranged at the center in the pipe expanding die 6, the motor 8 is fixedly connected on the base plate 1, and the output shaft of the motor is connected with a screw 9, and the middle of the bottom of the conveying trolley 2 is fixedly connected with a driving block 11, the driving block 11 is in threaded connection with a screw rod 9, two groups of fixing rings 7 used for fixing a lower pipe 01 are arranged on the conveying trolley 2, and bolts 12 used for opening and closing the ring are arranged on the fixing rings 7.
During pipe expansion, an original lower pipe 01 is fixed on a conveying trolley 2 through a fixing ring 7, then a motor 8 drives the conveying trolley 2 to drive the lower pipe 01 to enable the front end of the lower pipe 01 to be inserted into a hot melting furnace 5, after heating is carried out for a period of time, the front end of the lower pipe 01 is softened, then the motor 8 drives the conveying trolley 2 to drive the lower pipe 01 to continue to advance, the front end of the lower pipe 01 is inserted into a pipe expansion mould 6 and is deformed into an outer pipe expansion sleeve 04 under the action of a pipe expansion cone 13, after the pipe expansion cone 13 is cooled and shaped, the motor 8 drives the conveying trolley 2 to retract the lower pipe 01, then the bolt 12 is unscrewed, and the lower pipe 01 is taken out.
The specific implementation mode and principle are as follows:
as shown in fig. 1, in a first step, a pipe expanding mechanism expands a connection port of a lower pipe 01, and the connection port of the lower pipe 01 is modified into an outer expanding sleeve 04, so that the inner diameter of the outer expanding sleeve 04 is larger than or equal to the outer diameter of an upper pipe 03, and the outer diameter of the outer expanding sleeve 04 is smaller than the inner diameter of a connection through hole of an intermediate cover 02; during pipe expansion, an original lower pipe 01 is fixed on a conveying trolley 2 through a fixing ring 7, then a motor 8 drives the conveying trolley 2 to drive the lower pipe 01 to enable the front end of the lower pipe 01 to be inserted into a hot melting furnace 5, after heating is carried out for a period of time, the front end of the lower pipe 01 is softened, then the motor 8 drives the conveying trolley 2 to drive the lower pipe 01 to continue to advance, the front end of the lower pipe 01 is inserted into a pipe expansion mould 6 and is deformed into an outer pipe expansion sleeve 04 under the action of a pipe expansion cone 13, after the pipe expansion cone 13 is cooled and shaped, the motor 8 drives the conveying trolley 2 to retract the lower pipe 01, then the bolt 12 is unscrewed, and the lower pipe 01 is taken out. Wherein the pipe expanding mechanism is shown in fig. 3-6.
As shown in fig. 1, in the second step, the expanded pipe sleeve 04 is vertically slotted, and a plurality of equally spaced buffer slots 05 are cut by a cutting machine, wherein the number of the buffer slots 05 is preferably 4 or 6.
Thirdly, the lower pipe 01, the middle cover 02 and the upper pipe 03 are fixed on a welding table from bottom to top, wherein the lower pipe 01 is inserted into a lower pipe groove 16, then the middle cover 02 is sleeved on an outer expanding pipe sleeve 04 of the lower pipe 01 from top to bottom, meanwhile, the middle cover 02 is pressed on a cover supporting table 15 and is relatively fixed with the cover supporting table 15 through a fixing magnetic ring 17, and finally, the upper pipe 03 is inserted into the outer expanding pipe sleeve 04. The structure of the soldering station is shown in fig. 7.
Fourthly, as shown in fig. 2, the lower tube 01 and the upper tube 03 are inserted into the through hole of the middle cap 02, the upper tube 03 and the middle cap 02 are welded to the upper surface, and the lower tube 01 and the middle cap 02 are welded to the lower surface, which is not only troublesome, but also the lower tube 01 and the upper tube 03 are not welded together, so that the connection strength is insufficient.
After improvement, the welding gun is aligned to the part of the middle outer expanding sleeve 04 exposed from the upper part of the middle cover 02, the part is melted, and the part is connected with the middle cover 02 and the upper pipe 03 together, so that the connection and fixation of the lower pipe 01, the middle cover 02 and the upper pipe 03 are realized.
Based on the above, the welding process is optimized, so that the through hole of the middle cover is only sleeved outside the lower pipe, and the lower pipe is sleeved on the upper pipe, and the middle cover, the lower pipe and the upper pipe can be connected together in sequence by sleeving the through hole of the middle cover and the lower pipe in sequence, meanwhile, the middle cover, the lower pipe and the upper pipe can be connected together automatically only by hot melting the port part of the lower pipe during welding, the welding is more convenient, and no gap is formed.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (7)
1. A process for connecting multiple structural elements, comprising a lower tube (01), an intermediate lid (02) and an upper tube (03), characterized in that it comprises the following steps:
step one, expanding a pipe by a lower pipe (01),
carrying out pipe expanding operation on the connecting port of the lower pipe (01) through a pipe expanding mechanism, and transforming the connecting port of the lower pipe (01) into an outer expanding pipe sleeve (04) so that the inner diameter of the outer expanding pipe sleeve (04) is larger than or equal to the outer diameter of the upper pipe (03);
step two, slotting the slot,
slotting the outer expanding pipe sleeve (04) in the vertical direction, and cutting a plurality of buffer slots (05) at equal intervals by a cutting machine;
step three, preparing for welding,
fixing a lower pipe (01), an intermediate cover (02) and an upper pipe (03) on a welding table in sequence from bottom to top, wherein a flaring sleeve (04) of the lower pipe (01) penetrates through a through hole in the intermediate cover (02) and is partially exposed, and inserting the upper pipe (03) into the flaring sleeve (04);
step four, welding is carried out,
and aligning the welding gun to the part of the outer expanding pipe sleeve (04) exposed from the upper part of the middle cover (02) in the third step, melting the part, connecting the part with the middle cover (02) and the upper pipe (03), and realizing the connection and fixation of the pipe (01), the middle cover (02) and the upper pipe (03).
2. A process for joining multiple structural members according to claim 1, wherein: the pipe expanding mechanism comprises a base plate (1), a conveying trolley (2), a hot melting furnace (5), a pipe expanding mold (6) and a motor (8), wherein the conveying trolley (2) is connected to the base plate (1) in a sliding mode, the hot melting furnace (5) and the pipe expanding mold (6) are fixedly connected to the base plate (1), the pipe expanding mold (6) is fixedly connected to the rear side of the hot melting furnace (5), the motor (8) is fixedly connected to the base plate (1) and an output shaft of the base plate, the screw rod (9) is in threaded connection with the conveying trolley (2), and two groups of fixing rings (7) used for fixing the lower pipe (01) are arranged on the conveying trolley (2).
3. A process for joining multiple structural members according to claim 1, wherein: the welding table comprises a base table (14) and a cover supporting table (15), the cover supporting table (15) is fixedly connected to the upper end of the base table (14), a fixing magnetic ring (17) is arranged on the cover supporting table (15), and a through lower pipe groove (16) is formed in the centers of the base table (14) and the cover supporting table (15).
4. A process for joining multiple structural members according to claim 1, wherein: in the second step, the number of the buffer seams (05) is 4 or 6, and the depth of the buffer seams (05) is less than or equal to the length of the part of the outer expanding pipe sleeve (04) exposed above the middle cover (02) in the third step.
5. A process for joining multiple structural members according to claim 2, wherein: be equipped with twice slide rail (3) on base plate (1), the rear of slide rail (3) is equipped with limiting plate (10) with base plate (1) fixed connection, transport dolly (2) sliding connection is on slide rail (3), and locates fixedly connected with drive block (11) in the middle of the bottom of transport dolly (2), drive block (11) and screw rod (9) threaded connection.
6. A process for joining multiple structural members according to claim 2, wherein: hot melting furnace (5) and expand pipe mould (6) are all through base (4) fixed connection on base plate (1), the front end of screw rod (9) is rotated and is connected on base (4), expand pipe mould (6) interior center department and fixedly be equipped with one and expand pipe awl (13).
7. A process for joining multiple structural members according to claim 2, wherein: the rear of slide rail (3) is equipped with limiting plate (10) with base plate (1) fixed connection, be equipped with on solid fixed ring (7) and be used for opening closed loop's bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346788.8A CN114101953B (en) | 2021-11-15 | 2021-11-15 | Connecting process of multi-junction components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346788.8A CN114101953B (en) | 2021-11-15 | 2021-11-15 | Connecting process of multi-junction components |
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| Publication Number | Publication Date |
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| CN114101953A true CN114101953A (en) | 2022-03-01 |
| CN114101953B CN114101953B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111346788.8A Active CN114101953B (en) | 2021-11-15 | 2021-11-15 | Connecting process of multi-junction components |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201373189Y (en) * | 2009-02-17 | 2009-12-30 | 深圳雅昌管业有限公司 | Metal welding pipe joint |
| RU2397394C1 (en) * | 2009-06-26 | 2010-08-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Permanent connection of pipes with internal anti-corrosion coating |
| CN204063698U (en) * | 2014-03-31 | 2014-12-31 | 宁波奥克斯空调有限公司 | Air-conditioner connecting pipings structure |
| CN105234515A (en) * | 2015-09-17 | 2016-01-13 | 芜湖三花制冷配件有限公司 | Welding process for suction and exhaust pipe of liquid accumulator |
| CN106825269A (en) * | 2016-12-29 | 2017-06-13 | 张家港市和恒精工机械有限公司 | A kind of automatic tube expander |
| CN109773063A (en) * | 2019-03-11 | 2019-05-21 | 浙江龙腾空调有限公司 | A kind of automatic flaring spin slot forming integrated machine of automobile pipe fitting |
| CN113617952A (en) * | 2021-08-12 | 2021-11-09 | 江西艾芬达暖通科技股份有限公司 | Drying rack elbow lap joint reaming forming machine |
-
2021
- 2021-11-15 CN CN202111346788.8A patent/CN114101953B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201373189Y (en) * | 2009-02-17 | 2009-12-30 | 深圳雅昌管业有限公司 | Metal welding pipe joint |
| RU2397394C1 (en) * | 2009-06-26 | 2010-08-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Permanent connection of pipes with internal anti-corrosion coating |
| CN204063698U (en) * | 2014-03-31 | 2014-12-31 | 宁波奥克斯空调有限公司 | Air-conditioner connecting pipings structure |
| CN105234515A (en) * | 2015-09-17 | 2016-01-13 | 芜湖三花制冷配件有限公司 | Welding process for suction and exhaust pipe of liquid accumulator |
| CN106825269A (en) * | 2016-12-29 | 2017-06-13 | 张家港市和恒精工机械有限公司 | A kind of automatic tube expander |
| CN109773063A (en) * | 2019-03-11 | 2019-05-21 | 浙江龙腾空调有限公司 | A kind of automatic flaring spin slot forming integrated machine of automobile pipe fitting |
| CN113617952A (en) * | 2021-08-12 | 2021-11-09 | 江西艾芬达暖通科技股份有限公司 | Drying rack elbow lap joint reaming forming machine |
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| Publication number | Publication date |
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| CN114101953B (en) | 2023-07-21 |
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