CN113059320A - Hole drawing process for thin-wall stainless steel hard tube assembly - Google Patents
Hole drawing process for thin-wall stainless steel hard tube assembly Download PDFInfo
- Publication number
- CN113059320A CN113059320A CN202110324784.3A CN202110324784A CN113059320A CN 113059320 A CN113059320 A CN 113059320A CN 202110324784 A CN202110324784 A CN 202110324784A CN 113059320 A CN113059320 A CN 113059320A
- Authority
- CN
- China
- Prior art keywords
- machine
- hole drawing
- namely
- pipe
- thin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 19
- 239000010935 stainless steel Substances 0.000 title claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 238000004080 punching Methods 0.000 claims abstract description 12
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a hole drawing process for a thin-wall stainless steel hard pipe assembly, which comprises the following steps: firstly, blanking, namely cutting a long hard pipe into small sections with equal quantity through a full-automatic pipe cutting machine; chamfering, namely chamfering the cut chamfering machine through an inner diameter chamfering machine and an outer diameter chamfering machine; punching, namely forming an elliptical hole through a punching machine; step four, hole drawing, namely turning up the edge of the hole drawing outwards by a hole drawing machine to form a flanging and enabling the flanging to be discharged out of the outer wall of the metal pipe, finishing hole drawing, wherein the hole drawing after finishing machining is a plain circular shape; step five, shaping, namely bending the hard tube to 90 degrees by a pressure shaping machine to form an elbow; flattening the end face, namely flattening the end face of the pipe by using a single-station end flattening machine; and step seven, welding, namely welding the second elbow and the second standard cup mouth on the third steel pipe through a water separator welding machine.
Description
Technical Field
The invention relates to the technical field of pipe fitting hole drawing processes, in particular to a hole drawing process for a thin-wall stainless steel hard pipe assembly.
Background
In recent years, all domestic thin-wall stainless steel hard pipe manufacturers use a thin-wall tee joint and a thin-wall hard pipe for argon arc welding, the leakage risk is increased due to more welding seams after welding, and meanwhile, the dimensional tolerance is larger due to welding thermal deformation. Aiming at similar conditions, through research and research, a special hole pulling process and required equipment for a hard pipe assembly are developed. Through development and verification, the leakage risk caused by more welding seams can be solved while the dimensional tolerance of the hard tube can be ensured.
Disclosure of Invention
The invention aims to provide a hole drawing process for a thin-wall stainless steel hard tube assembly, which can always ensure the dimensional tolerance and solve the risk caused by more welding seams.
1. In order to solve the technical problem, the invention provides a hole drawing process for a thin-wall stainless steel hard pipe assembly, which comprises the following steps of:
firstly, blanking, namely cutting a long hard pipe into small sections with equal quantity through a full-automatic pipe cutting machine;
chamfering, namely chamfering the cut chamfering machine through an inner diameter chamfering machine and an outer diameter chamfering machine;
punching, namely forming an elliptical hole through a punching machine;
step four, hole drawing, namely turning up the edge of the hole drawing outwards by a hole drawing machine to form a flanging and enabling the flanging to be discharged out of the outer wall of the metal pipe, finishing hole drawing, wherein the hole drawing after finishing machining is a plain circular shape;
step five, shaping, namely bending the hard tube to 90 degrees by a pressure shaping machine to form an elbow;
flattening the end face, namely flattening the end face of the pipe by using a single-station end flattening machine;
and step seven, welding, namely welding the second elbow and the second standard cup opening on the third steel pipe through a water separator welding machine.
Further, the strip steel pipe is cut into a plurality of 644mm lengths by the full-automatic pipe cutting machine.
Further, a punching process is carried out at a position 126.2mm away from the left end of the third steel pipe.
Further, a second standard cup mouth with the inner diameter of 50.8mm is pulled out through the hole pulling machine.
Furthermore, the second elbow is connected with the third steel pipe in a welding mode, and the second steel pipe is fixedly connected with the second standard cup mouth.
Furthermore, a wire cutting cup opening is welded on the lower side of the second elbow.
Furthermore, the total length of the thin-wall stainless steel hard pipe assembly is 815.8mm, and the total height is 160.5 mm.
Compared with the prior art, the structure can ensure the dimensional tolerance and solve the risk caused by more welding seams.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram before hole drawing.
Fig. 2 is a schematic structural view after hole pulling.
FIG. 3 is a process flow diagram of a hole drawing process for a thin-wall stainless steel hard tube assembly.
In the figure: the device comprises a linear cutting cup mouth 1, a first elbow 2, a first steel pipe 3, a welded tee joint 4, a standard cup mouth 5, a second steel pipe 6, a second elbow 7, a second standard cup mouth 8, a third steel pipe 9, a full-automatic pipe cutting machine 10, an inner and outer diameter chamfering machine 11, a punching machine 12, a hole drawing machine 13, a pressure shaping machine 14, a single-station flat mouth machine 15 and a water separator welding machine 16.
Detailed Description
As shown in fig. 1 and 2, according to the device for controlling the rotation angle of the tower crane, a long steel pipe is cut into a plurality of lengths of 644mm through the full-automatic pipe cutting machine 10, a punching process is performed at a position 126.2mm at the left end of the second steel pipe 9, a second standard cup 8 with an inner diameter of 50.8mm is drawn through a hole drawing machine 13, the second elbow 7 is welded with the second steel pipe 9, the second steel pipe 9 is fixedly connected with the second standard cup 8, a wire cutting cup 1 is welded at the lower side of the second elbow 7, the total length of a thin-wall stainless steel hard pipe assembly is 815.8mm, and the total height is 160.5 mm.
As shown in fig. 3, the method comprises the following steps:
firstly, blanking, namely cutting a long hard pipe into small sections with equal quantity through a full-automatic pipe cutting machine 10;
chamfering, namely chamfering the cut chamfering machine through an inner diameter chamfering machine 11 and an outer diameter chamfering machine 11;
punching, namely forming an elliptical hole through a punching machine 12;
step four, hole drawing, namely turning up the edge of the hole drawing outwards through a hole drawing machine 13 to form a flanging and enabling the flanging to be discharged out of the outer wall of the metal pipe, finishing hole drawing, wherein the hole drawing after finishing machining is a plain circular shape;
step five, shaping, namely bending the hard tube to 90 degrees through a pressure shaping machine 14 to form an elbow;
step six, flattening the end face, namely flattening the end face of the pipe through a single-station end flattening machine 15;
and step seven, welding, namely welding the second elbow 7 and the second standard cup mouth 8 on the second steel pipe 9 through a water separator welding machine 16.
The principle is as follows: the welding is carried out on the thin-wall stainless steel hard pipe assembly by pulling the hole of the hard pipe, so that the leakage risk caused by the welding line is reduced, the thermal deformation of the welding size is reduced, the production and processing efficiency of the hard pipe assembly is improved, and the method is suitable for large-scale popularization and application of production enterprises.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that various changes or modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (7)
1. A hole drawing process for a thin-wall stainless steel hard tube assembly is characterized by comprising the following steps: the method comprises the following steps:
firstly, blanking, namely cutting a long hard pipe into small sections with equal quantity through a full-automatic pipe cutting machine (10);
chamfering, namely chamfering the cut chamfering machine through an inner diameter chamfering machine (11) and an outer diameter chamfering machine (11);
punching, namely forming an elliptical hole through a punching machine (12);
fourthly, hole drawing, namely turning up the edge of the hole drawing outwards through a hole drawing machine (13) to form a flanging and enabling the flanging to be discharged out of the outer wall of the metal pipe, finishing hole drawing, wherein the hole drawing after finishing machining is a plain circular shape;
step five, shaping, namely bending the hard tube to 90 degrees by a pressure shaping machine (14) to form an elbow;
step six, flattening the end face, namely flattening the end face of the pipe port by using a single-station flat machine (15);
and step seven, welding, namely welding the second elbow (7) and the second standard cup mouth (8) on the third steel pipe (9) through a water separator welding machine (16).
2. The hole drawing process of the thin-wall stainless steel hard pipe assembly according to claim 1, characterized in that: and cutting the long steel pipe into a plurality of 644mm lengths through the full-automatic pipe cutting machine (10).
3. The hole drawing process of the thin-wall stainless steel hard pipe assembly according to claim 1, characterized in that: and punching the left end 126.2mm of the third steel pipe (9).
4. The hole drawing process of the thin-wall stainless steel hard pipe assembly according to claim 1, characterized in that: and drawing a second standard cup mouth (8) with the inner diameter of 50.8mm through the hole drawing machine (13).
5. The hole drawing process of the thin-wall stainless steel hard pipe assembly according to claim 1, characterized in that: the second elbow (7) is connected with a third steel pipe (9) in a welding mode, and the third steel pipe (9) is fixedly connected with a second standard cup opening (8).
6. The hole drawing process of the thin-wall stainless steel hard pipe assembly according to claim 5, characterized in that: the lower side of the second elbow (7) is welded with a wire cutting cup mouth (1).
7. The hole drawing process of the thin-wall stainless steel hard pipe assembly according to claim 1, characterized in that: the total length of the thin-wall stainless steel hard pipe assembly is 815.8mm, and the total height is 160.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110324784.3A CN113059320A (en) | 2021-03-26 | 2021-03-26 | Hole drawing process for thin-wall stainless steel hard tube assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110324784.3A CN113059320A (en) | 2021-03-26 | 2021-03-26 | Hole drawing process for thin-wall stainless steel hard tube assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113059320A true CN113059320A (en) | 2021-07-02 |
Family
ID=76563873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110324784.3A Pending CN113059320A (en) | 2021-03-26 | 2021-03-26 | Hole drawing process for thin-wall stainless steel hard tube assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113059320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799742A (en) * | 2022-03-30 | 2022-07-29 | 中钢集团西安重机有限公司 | Nozzle beam and manufacturing method and machining tool thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09103827A (en) * | 1995-10-06 | 1997-04-22 | Yamada Seisakusho Co Ltd | Formation of lateral hole on tube member |
| CN104139119A (en) * | 2014-06-29 | 2014-11-12 | 成都飞机工业（集团）有限责任公司 | Large-diameter high-temperature-resistant aluminum alloy pipe flanging method and large-diameter high-temperature-resistant aluminum alloy pipe flanging device |
| CN206867550U (en) * | 2017-05-16 | 2018-01-12 | 湖北省汉江公安消防支队 | It is remotely controlled two-tube powder big gun |
| CN108422153A (en) * | 2018-01-29 | 2018-08-21 | 武汉纳百川电池热管理有限公司 | A kind of manufacturing process of T-type pipe |
| CN109759851A (en) * | 2019-03-26 | 2019-05-17 | 张家港市奕之星机械制造有限公司 | Hole flat mouth all-in-one machine is pulled out in a kind of punching of metal circular tube |
| CN211372412U (en) * | 2019-11-18 | 2020-08-28 | 浙江华亿机械有限公司 | Combined splicing type manifold assembly |
| CN211438949U (en) * | 2020-01-06 | 2020-09-08 | 刘玉梅 | Full-automatic equipment for turning branch caliber and flat cutting opening of stainless steel water separator pipe fitting |
-
2021
- 2021-03-26 CN CN202110324784.3A patent/CN113059320A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09103827A (en) * | 1995-10-06 | 1997-04-22 | Yamada Seisakusho Co Ltd | Formation of lateral hole on tube member |
| CN104139119A (en) * | 2014-06-29 | 2014-11-12 | 成都飞机工业（集团）有限责任公司 | Large-diameter high-temperature-resistant aluminum alloy pipe flanging method and large-diameter high-temperature-resistant aluminum alloy pipe flanging device |
| CN206867550U (en) * | 2017-05-16 | 2018-01-12 | 湖北省汉江公安消防支队 | It is remotely controlled two-tube powder big gun |
| CN108422153A (en) * | 2018-01-29 | 2018-08-21 | 武汉纳百川电池热管理有限公司 | A kind of manufacturing process of T-type pipe |
| CN109759851A (en) * | 2019-03-26 | 2019-05-17 | 张家港市奕之星机械制造有限公司 | Hole flat mouth all-in-one machine is pulled out in a kind of punching of metal circular tube |
| CN211372412U (en) * | 2019-11-18 | 2020-08-28 | 浙江华亿机械有限公司 | Combined splicing type manifold assembly |
| CN211438949U (en) * | 2020-01-06 | 2020-09-08 | 刘玉梅 | Full-automatic equipment for turning branch caliber and flat cutting opening of stainless steel water separator pipe fitting |
Non-Patent Citations (2)
| Title |
|---|
| 华健: "弯管机上弯管质量的缺陷形式及研究对策", 《机械设计与制造》 * |
| 张志远等: "大口径三通管自动热模拔制成形模具设计", 《制造业自动化》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799742A (en) * | 2022-03-30 | 2022-07-29 | 中钢集团西安重机有限公司 | Nozzle beam and manufacturing method and machining tool thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201799751U (en) | Welding structure adopting expansion after welding for heat exchange pipe and pipe sheet | |
| CN104390504B (en) | Boiler energy-saving device, and method and tool for manufacturing S-shaped fin heat exchange tube of boiler energy-saving device | |
| CN104028607B (en) | A kind ofly improve the processing method that spinning subtracts thick pipe finished quality | |
| CN106964692B (en) | A kind of processing technology and its processing unit (plant) of pressure-bearing inner liner | |
| CN103084427B (en) | Manufacturing method of hardenability steel tube | |
| CN113059320A (en) | Hole drawing process for thin-wall stainless steel hard tube assembly | |
| CN104690108B (en) | A kind of tubular type stainless steel manifold manufacture method | |
| CN104438509B (en) | A kind of ultra-thin stainless steel bending tube forming method | |
| CN109261816B (en) | A kind of plastic joining method and device between metal pipe material and plate | |
| CN212692667U (en) | Spiral baffle plate for shell-and-tube heat exchanger | |
| CN209800942U (en) | Manifold branch | |
| CN201416722Y (en) | Thin-walled stainless steel pipeline socket argon arc welding connecting structure | |
| CN103433323A (en) | Production method of internal thread aluminum pipe | |
| CN214184664U (en) | Shaping tool for cold-bending forming of bent pipe with straight pipe sections at two ends | |
| CN108061214A (en) | A kind of spiral winded type sheet metal elbow | |
| CN110744020B (en) | Curve taper structure of copper pipe of crystallizer | |
| CN104646967A (en) | Pressure-bearing water heater liner and method for processing pressure-bearing water heater liner | |
| CN201621389U (en) | Metal corrugated pipe | |
| CN203437410U (en) | Perforated molybdenum piercing mandrel structural assembly | |
| CN103363665A (en) | Interlayer water tank for water heater and manufacture method thereof | |
| CN102513796B (en) | Machining process for inner conductor of ferrite stub | |
| CN206998799U (en) | A kind of small-diameter, thin-walled stainless steel tube sealing ring gatherer | |
| CN207486256U (en) | A kind of Novel metal pipe | |
| CN1374472A (en) | Spigot and socket joint steel pipe and its manufacture | |
| CN205200251U (en) | In bank bending machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210702 |
|
| RJ01 | Rejection of invention patent application after publication |