CN112025216A - Flange production process - Google Patents
Flange production process Download PDFInfo
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- CN112025216A CN112025216A CN202010830455.1A CN202010830455A CN112025216A CN 112025216 A CN112025216 A CN 112025216A CN 202010830455 A CN202010830455 A CN 202010830455A CN 112025216 A CN112025216 A CN 112025216A
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- 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
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Abstract
The invention relates to a flange production process, which comprises the steps of (1) cutting a raw material plate by a laser cutting machine to manufacture 1/4 semi-finished flange pieces, wherein 1/4 semi-finished flange pieces are provided with openings, smooth inner circles and smooth outer circles, and the roughness of the inner circles, the outer circles and the openings reaches 12.5; (2) laying four 1/4 semi-finished flange sheets on a die of an integrated splicing welding machine; (3) laying an auxiliary arc plate; (4) starting the integrated splicing welding machine, completing the single-side welding work of the flange, and automatically withdrawing the gun; (5) laying the reverse side of the flange to complete the welding work of the flange, and automatically withdrawing the gun; (6) and (5) disassembling the flange, cutting off the auxiliary arc plate, and polishing the excircle bulge of the flange. The invention saves working procedures, improves precision, saves cost, and is environment-friendly and safe.
Description
Technical Field
The invention belongs to the field of flange manufacturing, and particularly relates to a flange manufacturing process.
Background
The pipeline connecting flange adopted by the low-concentration waste gas treatment major in the environmental protection industry is a self-made splicing flange generally, and a forged flange at the national standard level is not adopted. The design operating pressure of the low-concentration waste gas treatment professional pipeline in the environmental protection industry is not higher than 10KPa, and the design requirement on the thickness of the flange is not higher than 16 mm. The flange of the type has the advantages of large demand and caliber, and higher weight and raw material cost of a single flange.
At present, the process of the flange comprises the following steps: (1) plasma cutting; (2) splicing; (3) drawing a line; (4) positioning; (5) punching; (6) and (5) lathing the inner ring and the outer ring. It has the following problems: the process is complex and the precision is poor; professional riveting technology and welding technology are needed, and the labor intensity is high; the processing of the large flange can not be finished by a single person, and the two persons are required to be matched; the flanges can only be matched in a one-to-one mode, and can not be matched in a general mode; the method belongs to manual pairing welding, and has low production efficiency and high labor cost; the quality is not stable enough due to human factors, the phenomenon of hole misalignment often occurs due to the lack of a fixed checking procedure, and the sealing performance is reduced due to the lack of a compaction measure and the unevenness or deformation of the flange surface.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provide the flange production process which is capable of saving working procedures, improving precision, saving cost, protecting environment and being safe.
The technical scheme is as follows: in order to solve the technical problem, the flange production process comprises the following steps,
(1) cutting a raw material plate by using a laser cutting machine to manufacture 1/4 semi-finished flange pieces, so that the 1/4 semi-finished flange pieces have open holes and smooth inner and outer circles, and the roughness of the inner and outer circles and the open holes reaches 12.5;
(2) laying four 1/4 semi-finished flange sheets on a die of an integrated splicing welding machine;
(3) laying an auxiliary arc plate;
(4) starting the integrated splicing welding machine, completing the single-side welding work of the flange, and automatically withdrawing the gun;
(5) laying the reverse side of the flange to complete the welding work of the flange, and automatically withdrawing the gun;
(6) and (5) disassembling the flange, cutting off the auxiliary arc plate, and polishing the excircle bulge of the flange.
Further, in the step (2), the integrated splicing welding machine comprises a base, a cantilever welding frame body is arranged on the base, a dust remover is arranged on one side of the cantilever welding frame body, a connecting platform is arranged on the other side of the cantilever welding frame body, a moving platform is arranged on the upper portion of the cantilever welding frame body and is respectively connected with a transverse driving motor and a longitudinal driving motor, a welding wire feeder is arranged on the moving platform, a welding wire welding gun is arranged at one end of the moving platform, a welding fume suction cover is arranged above the welding wire welding gun and is connected with the dust remover through an exhaust pipe, a bearing mounting seat is arranged at the bottom in the connecting platform, an axial bearing is arranged on the bearing mounting seat and is connected with a central main shaft, the axial bearing is fixed through an axial bearing fixing seat arranged on the upper portion of the axial bearing, a radial bearing is arranged in the middle of the central main shaft, the radial bearing is connected with the connecting platform through a radial bearing fixing seat arranged on the upper portion of the radial bearing, the upper end of the central main shaft is connected with a driven gear, the driven gear is connected with a driving gear, the driving gear is driven by a gear driving speed reduction motor, a rotary table is arranged on the upper portion of the driven gear, a mold is arranged on the rotary table, a flange workpiece is arranged on the mold, and a control platform is arranged beside the dust remover.
Further, in the step (2), the mold comprises an annular base, and positioning pins are uniformly arranged on the upper part of the annular base.
Further, the number of the positioning pins is the same as that of the bolt holes in the flange workpiece.
Furthermore, the annular base comprises a full-circle flange and a base which are welded and fixed, and a positioning pin is arranged on the full-circle flange.
The method comprises the following specific operation steps:
firstly, cutting a raw material plate by adopting a laser cutting method, directly achieving the purpose of opening holes and polishing the outer circle and the inner circle of a semi-finished flange plate (1/4 plate), and enabling the roughness of the inner circle and the outer circle and the holes to reach the requirement of 12.5;
secondly, laying 4 semi-finished flange pieces (1/4 pieces) on the die surface of the integrated splicing welding machine;
thirdly, laying an arc striking and closing plate;
starting the integrated splicing welding machine to complete the single-side welding work of the flange, automatically withdrawing the gun and laying the reverse side of the flange;
starting the integrated splicing welding machine again to complete the single-side welding work of the flange, and automatically withdrawing the gun;
sixthly, disassembling the flange;
seventhly, cutting off the auxiliary arc plate, and polishing the outer circle bulge of the flange;
and completing the finished flange product.
The die in the invention is manufactured as follows: processing a flange team forming die according to set design data, forming a team by matching pin holes with semi-finished flange holes, and pressing the flanges by adopting threaded pins, wherein the pins ensure that the accuracy of the positions and the number of the screw holes is 100%;
the guide grooves of the arc starting and arc stopping plates are designed on the surface of the die, so that workers can conveniently place the arc starting and arc stopping plates to ensure the welding quality of the flange joint and the attractive appearance of the outer circular surface of the flange;
the mould supporting platform drives the driven gear to rotate through the personal service motor.
A single person can splice and manufacture the DN1300 flange by adopting the equipment.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the invention adopts the four-piece welding system, greatly improves the material obtaining rate of raw materials, saves cost, adopts the flange group die, can ensure the accuracy of the position and the quantity of screw holes to be 100 percent, saves the processes of drawing lines, positioning and the like of the prior flange, effectively improves the integral precision, arranges the guide grooves of the arc striking and arc closing plates on the die surface, ensures that workers can conveniently place the arc striking and arc closing plates, ensures the welding quality of the flange joints and the attractiveness of the outer circle surface of the flange, adopts an integral piece splicing welding machine, can continuously complete the processes of aligning, welding and gun withdrawing of 4 joints of the splicing flange, arranges a welding smoke suction hood above a welding gun of a welding wire, collects the welding smoke to a dust remover for filtering and then discharges, has no overflow of the welding smoke on the working site, only needs 25 minutes for completing the splicing welding of a single flange, and has simple manufacture because the die comprises the full-circle flange, a base and a, the size is adjustable, and the invention has safe and reliable operation and wide application range.
Drawings
FIG. 1 is a schematic structural view of an integrated splice welding machine of the present invention;
fig. 2 is a schematic view of the structure of the mold in the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 and 2, the flange production process of the present invention is characterized in that: which comprises the following steps of,
(1) cutting a raw material plate by using a laser cutting machine to manufacture 1/4 semi-finished flange pieces, so that the 1/4 semi-finished flange pieces have open holes and smooth inner and outer circles, and the roughness of the inner and outer circles and the open holes reaches 12.5;
(2) laying four 1/4 semi-finished flange sheets on a die of an integrated splicing welding machine;
(3) laying an auxiliary arc plate;
(4) starting the integrated splicing welding machine, completing the single-side welding work of the flange, and automatically withdrawing the gun;
(5) laying the reverse side of the flange to complete the welding work of the flange, and automatically withdrawing the gun;
(6) disassembling the flange, cutting off the auxiliary arc plate, and polishing the excircle bulge of the flange;
in the step (2), the integrated splicing welding machine comprises a base 1, a cantilever welding frame body 2 is arranged on the base 1, a dust remover 3 is arranged on one side of the cantilever welding frame body 2, a connecting platform 4 is arranged on the other side of the cantilever welding frame body, a moving platform 5 is arranged on the upper portion of the cantilever welding frame body 2, the moving platform 5 is respectively connected with a transverse driving motor 6 and a longitudinal driving motor 7, a welding wire feeder 8 is arranged on the moving platform 5, a welding wire welding gun 9 is arranged at one end of the moving platform 5, a welding fume suction hood 10 is arranged above the welding wire welding gun 9, the welding fume suction hood 10 is connected with the dust remover 3 through an exhaust pipe 11, a bearing mounting seat 12 is arranged at the bottom in the connecting platform 4, an axial bearing 13 is arranged on the bearing mounting seat 12, the axial bearing 13 is connected with a central main shaft 14, the axial bearing 13 is fixed through an axial bearing fixing seat 15 arranged on the upper portion of the axial, a radial bearing 16 is arranged in the middle of the central main shaft 14, the radial bearing 16 is connected with the connecting table 4 through a radial bearing fixing seat 17 arranged on the upper portion of the radial bearing 16, the upper end of the central main shaft 14 is connected with a driven gear 18, the driven gear 18 is connected with a driving gear 19, the driving gear 19 is driven by a gear driving speed reduction motor 20, a rotary table 21 is arranged on the upper portion of the driven gear 19, a mold 22 is arranged on the rotary table 21, a flange workpiece 23 is arranged on the mold 22, and a control 24 is arranged beside the dust remover 3;
in step 2, the mold 22 comprises an annular base, the annular base comprises a full-circle flange 26 and a base 27, the full-circle flange 26 and the base are welded and fixed, a positioning pin 25 is arranged on the full-circle flange 26,
the number of the positioning pins 25 is the same as the number of the bolt holes on the flange workpiece 23. The invention adopts the four-piece welding system, greatly improves the material obtaining rate of raw materials, saves cost, adopts the flange group die, can ensure the accuracy of the position and the quantity of screw holes to be 100 percent, saves the processes of drawing lines, positioning and the like of the prior flange, effectively improves the integral precision, arranges the guide grooves of the arc striking and arc closing plates on the die surface, ensures that workers can conveniently place the arc striking and arc closing plates, ensures the welding quality of the flange joints and the attractiveness of the outer circle surface of the flange, adopts an integral piece splicing welding machine, can continuously complete the processes of aligning, welding and gun withdrawing of 4 joints of the splicing flange, arranges a welding smoke suction hood above a welding gun of a welding wire, collects the welding smoke to a dust remover for filtering and then discharges, has no overflow of the welding smoke on the working site, only needs 25 minutes for completing the splicing welding of a single flange, and has simple manufacture because the die comprises the full-circle flange, a base and a, the size is adjustable, and the invention has safe and reliable operation and wide application range.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (5)
1. A flange production process is characterized in that: which comprises the following steps of,
(1) cutting a raw material plate by using a laser cutting machine to manufacture 1/4 semi-finished flange pieces, so that the 1/4 semi-finished flange pieces have open holes and smooth inner and outer circles, and the roughness of the inner and outer circles and the open holes reaches 12.5;
(2) laying four 1/4 semi-finished flange sheets on a die of an integrated splicing welding machine;
(3) laying an auxiliary arc plate;
(4) starting the integrated splicing welding machine, completing the single-side welding work of the flange, and automatically withdrawing the gun;
(5) laying the reverse side of the flange to complete the welding work of the flange, and automatically withdrawing the gun;
(6) and (5) disassembling the flange, cutting off the auxiliary arc plate, and polishing the excircle bulge of the flange.
2. A flange production process according to claim 1, wherein: in the step (2), the integrated splicing welding machine comprises a base (1), a cantilever welding frame body (2) is arranged on the base (1), a dust remover (3) is arranged on one side of the cantilever welding frame body (2), a connecting platform (4) is arranged on the other side of the cantilever welding frame body, a moving platform (5) is arranged on the upper portion of the cantilever welding frame body (2), the moving platform (5) is respectively connected with a transverse driving motor (6) and a longitudinal driving motor (7), a welding wire feeder (8) is arranged on the moving platform (5), a welding wire welding gun (9) is arranged at one end of the moving platform (5), a welding smoke suction hood (10) is arranged above the welding wire welding gun (9), the welding smoke suction hood (10) is connected with the dust remover (3) through an exhaust pipe (11), and a bearing mounting seat (12) is arranged at the bottom in the connecting platform (4), an axial bearing (13) is arranged on the bearing mounting seat (12), the axial bearing (13) is connected with a central main shaft (14), the axial bearing (13) is fixed by an axial bearing fixing seat (15) arranged at the upper part of the axial bearing, a radial bearing (16) is arranged in the middle of the central main shaft (14), the radial bearing (16) is connected with the connecting table (4) through a radial bearing fixing seat (17) arranged on the upper part of the radial bearing (16), the upper end of the central main shaft (14) is connected with a driven gear (18), the driven gear (18) is connected with a driving gear (19), the driving gear (19) is driven by a gear driving speed reducing motor (20), a rotary table (21) is arranged at the upper part of the driven gear (19), a mould (22) is arranged on the rotary table (21), a flange workpiece (23) is arranged on the die (22), and a control console (24) is arranged beside the dust remover (3).
3. A flange production process according to claim 1 or 2, characterized in that: in the step (2), the die (22) comprises an annular base, and positioning pins (25) are uniformly arranged on the upper portion of the annular base.
4. A flange production process according to claim 3, wherein: the number of the positioning pins (25) is the same as that of the bolt holes in the flange workpiece (23).
5. A flange production process according to claim 3, wherein: the annular base comprises a full-circle flange (26) and a base (27), the full-circle flange and the base are welded and fixed, and a positioning pin (25) is arranged on the full-circle flange (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830455.1A CN112025216A (en) | 2020-08-18 | 2020-08-18 | Flange production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830455.1A CN112025216A (en) | 2020-08-18 | 2020-08-18 | Flange production process |
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| Publication Number | Publication Date |
|---|---|
| CN112025216A true CN112025216A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010830455.1A Pending CN112025216A (en) | 2020-08-18 | 2020-08-18 | Flange production process |
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| Country | Link |
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| CN (1) | CN112025216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589454A (en) * | 2020-12-05 | 2022-06-07 | 宜兴市九洲封头锻造有限公司 | Forming process of biphase high-alloy steel seal head |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983496A (en) * | 1996-03-15 | 1999-11-16 | J.A. Hermanson | Circular and oval flanged rings for connecting ducting and method of making |
| CN102990237A (en) * | 2012-10-24 | 2013-03-27 | 中船华南船舶机械有限公司 | Welding technology for large connecting cylinder |
| CN206105254U (en) * | 2016-10-25 | 2017-04-19 | 江苏协合新能源科技有限公司 | Wind power tower cylinder base flange's welding frock |
| CN108608175A (en) * | 2018-06-23 | 2018-10-02 | 浙江智海化工设备工程有限公司 | A kind of welding method controlling tower skirt base water Pingdu using cast iron platform |
| CN111468868A (en) * | 2020-04-23 | 2020-07-31 | 林义 | Welding device with adjusting bracket |
-
2020
- 2020-08-18 CN CN202010830455.1A patent/CN112025216A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983496A (en) * | 1996-03-15 | 1999-11-16 | J.A. Hermanson | Circular and oval flanged rings for connecting ducting and method of making |
| CN102990237A (en) * | 2012-10-24 | 2013-03-27 | 中船华南船舶机械有限公司 | Welding technology for large connecting cylinder |
| CN206105254U (en) * | 2016-10-25 | 2017-04-19 | 江苏协合新能源科技有限公司 | Wind power tower cylinder base flange's welding frock |
| CN108608175A (en) * | 2018-06-23 | 2018-10-02 | 浙江智海化工设备工程有限公司 | A kind of welding method controlling tower skirt base water Pingdu using cast iron platform |
| CN111468868A (en) * | 2020-04-23 | 2020-07-31 | 林义 | Welding device with adjusting bracket |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589454A (en) * | 2020-12-05 | 2022-06-07 | 宜兴市九洲封头锻造有限公司 | Forming process of biphase high-alloy steel seal head |
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Application publication date: 20201204 |
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| RJ01 | Rejection of invention patent application after publication |