CN114833257A - Forming method of conical wheel cover of ventilator - Google Patents
Forming method of conical wheel cover of ventilator Download PDFInfo
- Publication number
- CN114833257A CN114833257A CN202210565172.8A CN202210565172A CN114833257A CN 114833257 A CN114833257 A CN 114833257A CN 202210565172 A CN202210565172 A CN 202210565172A CN 114833257 A CN114833257 A CN 114833257A
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- upper die
- die
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- basic
- lower die
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 238000012937 correction Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/267—Making other particular articles wheels or the like blower wheels, i.e. wheels provided with fan elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The patent relates to the technical field of ventilator conical wheel cover forming, in particular to a forming method of a ventilator conical wheel cover, which comprises the following steps: s1: preparing an annular flat plate: preparing an annular flat plate with a corresponding size according to the size of the required conical disc; s2: preparation of a molding device: the forming device comprises an upper die and a lower die, the upper die comprises a basic upper die and an extension upper die, the lower die comprises a basic lower die and an extension lower die, and the upper die and the lower die are hoisted to a large-scale oil pressure equipment platform; s3: profiling: and (4) placing the annular flat plate on the lower die, and starting an oil pressure device to perform press forming. According to the scheme, the conical wheel cover is produced by adopting the annular flat plate taper profiling method, the fan-shaped blocks are not required to be spliced, the welding and flaw detection workload is reduced, the conical wheel cover is directly formed by pressing, repeated circle rolling and conical disc taper hammering correction are not required, the forming steps are reduced, and the forming efficiency is improved.
Description
Technical Field
The invention relates to the technical field of ventilator conical wheel cover forming, in particular to a forming method of a ventilator conical wheel cover.
Background
The traditional fan impeller cone-shaped wheel cover is formed by splicing and welding three or more fan-shaped blocks and manufactured by a rolling method of a plate rolling machine, the mode has the bottlenecks of fan-shaped block lofting error, fan-shaped block splicing dislocation, repeated rolling of the cone-shaped wheel cover, conical hammering and shape correction of the cone-shaped wheel cover, large welding line splicing quantity, high welding line flaw detection requirement, long manufacturing period and the like.
Disclosure of Invention
The invention aims to provide a method for forming a conical wheel cover of a ventilator, which solves the problems in the prior art.
In order to achieve the above object, the basic scheme of the invention is as follows: a method for forming a conical wheel cover of a ventilator comprises the following steps:
s1: preparing an annular flat plate: preparing an annular flat plate with a corresponding size according to the size of the required conical disc;
s2: preparation of a molding device: the forming device comprises an upper die and a lower die, the upper die comprises a basic upper die and an extension upper die, the lower die comprises a basic lower die and an extension lower die, the bottom of the basic upper die is a conical surface, a guide hole is formed in the middle of the basic upper die, the extension upper die is circular, the inner diameter of the extension upper die is equal to the outer diameter of the basic upper die, the top surface of the extension upper die is flush with the top surface of the basic upper die, the bottom surface of the extension upper die is an extension conical surface of the basic upper die, and the extension upper die is detachably connected with the basic upper die; the top of the basic lower die is a conical surface, a guide rod is arranged in the middle of the basic lower die and matched with the guide hole, the extension lower die is annular, the inner diameter of the extension lower die is equal to the outer diameter of the basic lower die, the upper end surface of the extension lower die is an extension conical surface of the basic lower die, the bottom surface of the extension upper die is flush with the bottom surface of the basic upper die, and the extension lower die is detachably connected with the basic lower die;
determining whether an extension upper die and an extension lower die are additionally arranged or not according to the size of the annular flat plate, if the size of the annular flat plate does not exceed the areas of the basic upper die and the basic lower die, not additionally arranging the extension upper die and the extension lower die, and if the size of the annular flat plate exceeds the areas of the basic upper die and the basic lower die, additionally arranging the extension upper die and the extension lower die;
hoisting the upper die and the lower die to a large-scale oil pressure equipment platform, firstly installing the upper die, adjusting and positioning the upper die and the lower die through a guide rod and a guide hole after the upper die is installed, and finally fixing the lower die;
s3: profiling: and (4) placing the annular flat plate on the lower die, and starting an oil pressure device to perform press forming.
Further, the upper portion of the foundation upper die is a hollow groove, and a round-corner annular rib shaped like a Chinese character 'pin' is arranged in the hollow groove.
Furthermore, the lower part of the basic lower die is a hollow groove, and a round-corner annular rib shaped like a Chinese character 'pin' is arranged in the hollow groove.
Furthermore, the included angle between the conical surfaces of the upper base die and the lower base die and the horizontal plane is 19.5 degrees.
Further, all be equipped with the draw-in groove on extending the mould and extending the lower mould, all be equipped with on mould and the basis lower mould on the basis with draw-in groove assorted flange, all be equipped with the screw hole on flange and draw-in groove and the flange contact surface, it all passes through bolt fastening with the lower mould of extending to extend the mould.
Furthermore, a hollow groove is also formed in the side edge of the extending upper die, and a rib plate is arranged in the hollow groove.
Furthermore, a positioning step is arranged on the conical surface of the upper mold on the foundation and is horizontally arranged.
The beneficial effect of this scheme: (1) according to the scheme, the conical wheel cover is produced by adopting the annular flat plate taper profiling method, the fan-shaped blocks are not required to be spliced, the welding and flaw detection workload is reduced, the conical wheel cover is directly formed by pressing, repeated circle rolling and conical disc taper hammering correction are not required, the forming steps are reduced, and the forming efficiency is improved.
(2) Forming device can be applicable to the production of the cone pulley lid of multiple specification and dimension in this scheme, reduces mould development cost, and through the design of fretwork and fillet ring muscle, gusset, can guarantee that the weight and the manufacturing cost that alleviate whole die mould device when forming device is sturdy and durable.
(3) The conicity of the upper die and the conicity of the lower die are designed by comprehensively considering the conicity of the conical wheel cover, the plate thickness of the material, the yield limit of the material, the elastic modulus and the rebound deformation of the profiling back conical disc, the theoretical angle of the conical wheel cover of the ventilator is 15 degrees, the factors and the die repairing engineering experience (later pressure test, analysis, improvement and verification, analysis of the forming rule and improvement of the forming angle of the conical die) are comprehensively considered, the die angle is designed to be 19.5 degrees, and the high-precision forming of 15 degrees can be realized after the profiling elastic deformation.
Drawings
FIG. 1 is a schematic structural diagram of a molding apparatus according to an embodiment of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
fig. 3 is a plan view of a molding apparatus in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference numerals in the drawings of the specification include: the device comprises a basic upper die 1, an extension upper die 2, a basic lower die 3, an extension lower die 4, a positioning step 5, a guide hole 6, a guide rod 7 and a circular bead ring rib 8.
Examples
Substantially as shown in figure 1: a method for forming a conical wheel cover of a ventilator comprises the following steps:
s1: preparing an annular flat plate: preparing an annular flat plate with a corresponding size according to the size of the required conical disc;
s2: preparation of a molding device: the forming device comprises an upper die and a lower die, the upper die comprises a basic upper die 1 and an extension upper die 2, the lower die comprises a basic lower die 3 and an extension lower die 4, the bottom of the basic upper die 1 is a conical surface, as shown in a combined drawing 2, a positioning step 5 is arranged on the conical surface of the basic upper die 1, the positioning step 5 is horizontally arranged, a guide hole 6 is arranged in the middle of the basic upper die 1, the extension upper die 2 is in a circular ring shape, the inner diameter of the extension upper die 2 is equal to the outer diameter of the basic upper die 1, the top surface of the extension upper die 2 is flush with the top surface of the basic upper die 1, the bottom surface of the extension upper die 2 is an extension conical surface of the basic upper die 1, and the extension upper die 2 is detachably connected with the basic upper die 1; the top of the basic lower die 3 is a conical surface, the included angle between the conical surfaces of the basic upper die 1 and the basic lower die 3 and the horizontal plane is 19.5 degrees, the middle part of the basic lower die 3 is provided with a guide rod 7, the guide rod 7 is matched with a guide hole 6, the extension lower die 4 is in a circular ring shape, the inner diameter of the extension lower die 4 is equal to the outer diameter of the basic lower die 3, the upper end surface of the extension lower die 4 is an extension conical surface of the basic lower die 3, the bottom surface of the extension upper die 2 is flush with the bottom surface of the basic upper die 1, the extension upper die 2 and the extension lower die 4 are both provided with clamping grooves, flanges matched with the clamping grooves are both arranged on the basic upper die 1 and the basic lower die 3, threaded holes are both arranged on the contact surfaces of the flanges and the clamping grooves and the flanges, and the extension upper die 2 and the extension lower die 4 are both fixed through bolts; as shown in a combined drawing 3, the upper portion of the upper foundation die 1 and the lower portion of the lower foundation die 3 are hollow grooves, round-corner annular ribs 8 shaped like Chinese character 'pin' are arranged in the hollow grooves, the hollow grooves are also formed in the side edges of the upper extending die 2, and rib plates are arranged in the hollow grooves.
Determining whether to additionally install the extension upper die 2 and the extension lower die 4 according to the size of the annular flat plate, if the size of the annular flat plate does not exceed the areas of the foundation upper die 1 and the foundation lower die 3, not additionally installing the extension upper die 2 and the extension lower die 4, and if the size of the annular flat plate exceeds the areas of the foundation upper die 1 and the foundation lower die 3, additionally installing the extension upper die 2 and the extension lower die 4;
hoisting the upper die and the lower die to a large-scale oil pressure equipment platform, firstly installing the upper die, adjusting and positioning the upper die and the lower die through the guide rod 7 and the guide hole 6 after the upper die is installed, and finally fixing the lower die;
s3: profiling: and (4) placing the annular flat plate on the lower die, and starting an oil pressure device to perform press forming.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. A forming method of a conical wheel cover of a ventilator is characterized in that: the method comprises the following steps:
s1: preparing an annular flat plate: preparing an annular flat plate with a corresponding size according to the size of the required conical disc;
s2: preparation of a molding device: the forming device comprises an upper die and a lower die, the upper die comprises a basic upper die and an extension upper die, the lower die comprises a basic lower die and an extension lower die, the bottom of the basic upper die is a conical surface, a guide hole is formed in the middle of the basic upper die, the extension upper die is circular, the inner diameter of the extension upper die is equal to the outer diameter of the basic upper die, the top surface of the extension upper die is flush with the top surface of the basic upper die, the bottom surface of the extension upper die is an extension conical surface of the basic upper die, and the extension upper die is detachably connected with the basic upper die; the top of the basic lower die is a conical surface, a guide rod is arranged in the middle of the basic lower die and matched with the guide hole, the extension lower die is annular, the inner diameter of the extension lower die is equal to the outer diameter of the basic lower die, the upper end surface of the extension lower die is an extension conical surface of the basic lower die, the bottom surface of the extension upper die is flush with the bottom surface of the basic upper die, and the extension lower die is detachably connected with the basic lower die;
determining whether an extension upper die and an extension lower die are additionally arranged or not according to the size of the annular flat plate, if the size of the annular flat plate does not exceed the areas of the basic upper die and the basic lower die, not additionally arranging the extension upper die and the extension lower die, and if the size of the annular flat plate exceeds the areas of the basic upper die and the basic lower die, additionally arranging the extension upper die and the extension lower die;
hoisting the upper die and the lower die to a large-scale oil pressure equipment platform, firstly installing the upper die, adjusting and positioning the upper die and the lower die through the guide rod and the guide hole after the upper die is installed, and finally fixing the lower die;
s3: profiling: and (4) placing the annular flat plate on the lower die, and starting an oil pressure device to perform press forming.
2. The method for forming a conical wheel cover of a ventilator according to claim 1, wherein: the upper portion of the foundation upper die is a hollow groove, and a round-corner annular rib shaped like a Chinese character 'pin' is arranged in the hollow groove.
3. A method of forming a blower cone cover according to claim 2, wherein: the lower part of the foundation lower die is a hollow groove, and a round-corner annular rib shaped like a Chinese character 'pin' is arranged in the hollow groove.
4. A method of forming a blower cone cover according to claim 3, wherein: the included angle between the conical surfaces of the upper basic die and the lower basic die and the horizontal plane is 19.5 degrees.
5. The method for molding a blower cone cover according to claim 4, wherein: all be equipped with the draw-in groove on extending the mould and extending the lower mould, all be equipped with on mould and the basis lower mould on the basis with draw-in groove assorted flange, all be equipped with the screw hole on flange and draw-in groove and the flange contact surface, it all passes through bolt fastening with the lower mould of extending to extend the mould.
6. A method of forming a blower cone cover according to claim 3, wherein: the side edge of the extending upper die is also provided with a hollow groove, and a rib plate is arranged in the hollow groove.
7. The method for forming a conical wheel cover of a ventilator according to claim 1, wherein: and a positioning step is arranged on the conical surface of the upper mold on the foundation and is horizontally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565172.8A CN114833257A (en) | 2022-05-23 | 2022-05-23 | Forming method of conical wheel cover of ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565172.8A CN114833257A (en) | 2022-05-23 | 2022-05-23 | Forming method of conical wheel cover of ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114833257A true CN114833257A (en) | 2022-08-02 |
Family
ID=82571658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210565172.8A Pending CN114833257A (en) | 2022-05-23 | 2022-05-23 | Forming method of conical wheel cover of ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114833257A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744568A (en) * | 2012-06-21 | 2012-10-24 | 西安陕鼓动力股份有限公司 | Bar thick tampering rotating forging bending hot forging process for impeller cover disc of large-scale centrifugal fan |
| CN102744569A (en) * | 2012-06-21 | 2012-10-24 | 西安交通大学 | Plate flange thick tampering bending hot forging process for impeller cover disc for large-scale centrifugal fan |
| CN202701244U (en) * | 2012-06-21 | 2013-01-30 | 西安陕鼓动力股份有限公司 | Hot forging bend mould suitable for impeller cover plate with different inner bore diameters |
| CN203470672U (en) * | 2013-09-12 | 2014-03-12 | 无锡华信石油机械有限公司 | Split-type oil drill pipe joint forming die |
| CN108655277A (en) * | 2017-04-01 | 2018-10-16 | 扬州中孚机械有限公司 | A kind of mold of good impact resistance |
| CN108655320A (en) * | 2017-04-01 | 2018-10-16 | 扬州中孚机械有限公司 | A kind of disk cover class product forming mould |
| CN108655321A (en) * | 2017-04-01 | 2018-10-16 | 扬州中孚机械有限公司 | A kind of improved hot-forging mould |
| CN209049997U (en) * | 2018-07-05 | 2019-07-02 | 上海红重机械装备有限公司 | A kind of new structural deflector pressing mold |
| CN209477076U (en) * | 2018-11-15 | 2019-10-11 | 山东罗泰风机有限公司 | A kind of plug-in type enclosing cover for impeller mold |
| CN211542525U (en) * | 2019-12-04 | 2020-09-22 | 莱州创智新材料科技有限公司 | Flying target dish dry powder cold press forming die |
-
2022
- 2022-05-23 CN CN202210565172.8A patent/CN114833257A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744568A (en) * | 2012-06-21 | 2012-10-24 | 西安陕鼓动力股份有限公司 | Bar thick tampering rotating forging bending hot forging process for impeller cover disc of large-scale centrifugal fan |
| CN102744569A (en) * | 2012-06-21 | 2012-10-24 | 西安交通大学 | Plate flange thick tampering bending hot forging process for impeller cover disc for large-scale centrifugal fan |
| CN202701244U (en) * | 2012-06-21 | 2013-01-30 | 西安陕鼓动力股份有限公司 | Hot forging bend mould suitable for impeller cover plate with different inner bore diameters |
| CN203470672U (en) * | 2013-09-12 | 2014-03-12 | 无锡华信石油机械有限公司 | Split-type oil drill pipe joint forming die |
| CN108655277A (en) * | 2017-04-01 | 2018-10-16 | 扬州中孚机械有限公司 | A kind of mold of good impact resistance |
| CN108655320A (en) * | 2017-04-01 | 2018-10-16 | 扬州中孚机械有限公司 | A kind of disk cover class product forming mould |
| CN108655321A (en) * | 2017-04-01 | 2018-10-16 | 扬州中孚机械有限公司 | A kind of improved hot-forging mould |
| CN209049997U (en) * | 2018-07-05 | 2019-07-02 | 上海红重机械装备有限公司 | A kind of new structural deflector pressing mold |
| CN209477076U (en) * | 2018-11-15 | 2019-10-11 | 山东罗泰风机有限公司 | A kind of plug-in type enclosing cover for impeller mold |
| CN211542525U (en) * | 2019-12-04 | 2020-09-22 | 莱州创智新材料科技有限公司 | Flying target dish dry powder cold press forming die |
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Application publication date: 20220802 |