CN112571076B - Ternary flow impeller metal substrate additive manufacturing device - Google Patents
Ternary flow impeller metal substrate additive manufacturing device Download PDFInfo
- Publication number
- CN112571076B CN112571076B CN202011464463.5A CN202011464463A CN112571076B CN 112571076 B CN112571076 B CN 112571076B CN 202011464463 A CN202011464463 A CN 202011464463A CN 112571076 B CN112571076 B CN 112571076B
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- impeller
- clamp body
- substrate
- nut
- pressing plate
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- 239000000758 substrate Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 17
- 239000000654 additive Substances 0.000 title claims description 20
- 230000000996 additive effect Effects 0.000 title claims description 20
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 238000007639 printing Methods 0.000 claims abstract description 23
- 238000003801 milling Methods 0.000 claims abstract description 19
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000010146 3D printing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of impeller manufacturing, and particularly discloses a ternary flow impeller metal substrate material-increasing manufacturing device which comprises an impeller printing unit and a blade finish milling unit, wherein the impeller printing unit comprises a first clamp body, a substrate and a first fixing part, the substrate is disc-shaped, a positioning hole is formed in the center of the substrate, and a first U-shaped notch is formed in the circumferential edge of the substrate; the center of the first clamp body is provided with a positioning bulge; the first clamp body is provided with a fixing groove, and the first U-shaped notch can be opposite to the fixing groove; the first fixing part is used for fixing the substrate and the first clamp body; the blade finish milling unit comprises a second clamp body, a pressing plate and a second fixing part, and a boss is arranged at the center of the second clamp body; the pressing plate is used for pressing the impeller from the upper side of the impeller, and the second fixing part is used for fixing the pressing plate, the impeller and the second clamp body. The device can solve the problems that the manufacturing period of the impeller is prolonged and the cost is increased due to the fact that the substrate is required to be cut off in subsequent processing.
Description
Technical Field
The invention belongs to the technical field of impeller manufacturing, and particularly relates to a ternary flow impeller metal substrate additive manufacturing device.
Background
The open three-way flow impeller is used as a core component of a compressor product, and plays a vital role in the overall operation quality of the unit. The traditional impeller manufacturing is realized by adopting forging stock five-axis integral processing, the manufacturing cost is high, and the period is long. In order to better solve the problems, the additive manufacturing technology is adopted to realize the 3D printing of the three-dimensional blank of the impeller, so that the purposes of improving the material utilization rate (the material utilization rate is improved to about 50% from 15% of forging stock), reducing the processing amount of the impeller, shortening the whole manufacturing period of the impeller and reducing the processing and cutter cost are achieved. The printing of the impeller needs substrate support, most of the substrates used in 3D printing at the present stage are square plates, the substrates are firstly fixed on additive manufacturing equipment in the printing process, and then an impeller wheel disc (a chassis formed by the maximum diameter of the impeller, and the chassis does not contain blades) a hub (a part connecting the impeller wheel disc and the blades) and the blades are printed on the substrates. Since the base plate is not an integral part of the impeller, the base plate still needs to be cut off in subsequent processing, resulting in longer manufacturing period and increased cost of the impeller.
Disclosure of Invention
The invention aims to provide a ternary flow impeller metal substrate additive manufacturing device, which aims to solve the problems of long manufacturing period and increased cost of impellers caused by cutting off a substrate in subsequent processing.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the three-dimensional flow impeller metal substrate material adding and manufacturing device comprises an impeller printing unit and a blade finish milling unit, wherein the impeller printing unit comprises a first clamp body, a substrate and a first fixing part, the substrate is disc-shaped, a positioning hole is formed in the center of the substrate, and a plurality of first U-shaped notches used for clamping are formed in the circumferential edge of the substrate; the center of the first clamp body is provided with a positioning bulge, and the positioning bulge is used for positioning a positioning hole in the center of the substrate; the height of the positioning bulge is smaller than the depth of the positioning hole; the first clamp body is provided with a fixing groove, and the first U-shaped notch can be opposite to the fixing groove; the first fixing part is used for fixing the substrate and the first clamp body; the axial lead of the first clamp body coincides with the rotation center of the additive manufacturing equipment; the blade finish milling unit comprises a second clamp body, a pressing plate and a second fixing part, the axial lead of the second clamp body coincides with the rotation center of the finish milling equipment, a boss is arranged at the center of the second clamp body and used for positioning a center hole of an impeller printed by the impeller printing unit; the pressing plate is used for pressing the impeller from the upper side of the impeller, and the second fixing part is used for fixing the pressing plate, the impeller and the second clamp body.
Further, the section of the fixing groove is of an inverted T shape, the first fixing part comprises a first nut, a first bolt and a second nut, and the first nut and the second nut can be matched with the first bolt respectively; the first nut adopts a T-shaped nut which can be matched with the fixed groove, and the first bolt can penetrate through the first U-shaped notch.
Further, the second fixing part comprises a second bolt and a third nut matched with the second bolt, a through hole is formed in the pressing plate, a threaded hole is formed in the second clamp body, and the through hole, the threaded hole and the central hole of the impeller are opposite to each other; the second bolt can pass through the center holes of the pressing plate and the impeller and then is in threaded connection with the threaded hole.
Further, the first fixing portion further includes a first spacer, and the first spacer is located between the base plate and the second nut.
Further, the second fixing portion further includes a second washer, and the second washer is located between the pressing plate and the third nut.
Further, the cross-section of clamp plate is T type, the vertical portion of clamp plate can fix a position the top recess of impeller.
Further, a plurality of second U-shaped notches are formed in the circumferential direction of the second clamp body.
The working principle of the technical scheme is as follows: when the material adding device is used, the first clamp body is fixed on a workbench of the material adding manufacturing equipment, and the axis of the first clamp body is ensured to coincide with the rotation center of the material adding manufacturing equipment. The positioning protrusion is aligned with the positioning hole, the substrate is installed on the first clamp body, and the substrate is rotated to enable the first U-shaped notch on the substrate to be aligned with the fixing groove on the first clamp body. And then the first bolt is screwed on the first nut, the first nut is installed in the fixing groove of the first clamp body, the first bolt is pushed to the first U-shaped notch of the base plate, the first gasket and the second nut are installed on the first bolt and screwed, and at the moment, the additive manufacturing equipment can be opened for printing, so that an impeller blank is formed.
After printing, the second clamp body is fixed on a workbench of the finish milling equipment through the second U-shaped notch, and the axis of the second clamp body is ensured to coincide with the rotation center of the finish milling equipment. And then taking the end face and the inner hole of the wheel disc of the impeller as positioning references, and mounting the impeller blank on the second clamp body. And screwing the second bolt into the boss of the second clamp body, finally installing the pressing plate, the second gasket and the third nut, and screwing the third nut, so that the finish milling equipment can be opened at the moment to process the blade.
The beneficial effects of this technical scheme lie in: ① The substrate can reduce the printing workload of the impeller, the substrate and the impeller wheel disc are combined into a whole, and only the impeller wheel hub and the impeller blade are required to be printed when printing is performed, so that the impeller wheel disc is not printed any more, and the printing time and the printing cost are shortened. ② The metal cutting workload is reduced, and the substrate is not required to be cut off in the subsequent processing because the substrate is a component part of the impeller, so that the processing time and the cost are shortened. ③ Because the impeller printing unit and the blade finish milling unit are designed according to the specification range of the outer circle and the inner hole of the impeller, most of impeller processing can be adapted, so that the number and the cost of tools are reduced, and the prenatal preparation efficiency is improved.
Drawings
FIG. 1 is a top view of a substrate in a three-dimensional flow impeller metal substrate additive manufacturing apparatus of the present invention;
FIG. 2 is a front cross-sectional view of an impeller printing unit in a three-dimensional flow impeller metal substrate additive manufacturing apparatus of the present invention;
FIG. 3 is a top view of an impeller print unit in a three-dimensional flow impeller metal substrate additive manufacturing apparatus of the present invention;
FIG. 4 is an enlarged view of FIG. 2 at A;
FIG. 5 is a cross-sectional view of B-B in FIG. 3;
FIG. 6 is a cross-sectional view of the first clamp body of FIG. 2;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a front cross-sectional view of a blade finish milling unit in a three-dimensional flow impeller metal substrate additive manufacturing device of the present invention;
FIG. 9 is a cross-sectional view of the second clamp body of FIG. 8;
Fig. 10 is a top view of fig. 9.
Detailed Description
The following is a further detailed description of the embodiments:
Reference numerals in the drawings of the specification include: the novel impeller comprises a base plate 1, a positioning hole 2, a first U-shaped notch 3, a first clamp body 4, an impeller blank 5, a first nut 6, a first bolt 7, a second nut 8, a fixing groove 9, a positioning protrusion 10, a second clamp body 11, a pressing plate 12, a second bolt 13, a third nut 14, a threaded hole 15, a boss 16 and a second U-shaped notch 17.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An example is substantially as shown in figures 1-10: the three-dimensional flow impeller metal substrate material adding manufacturing device comprises an impeller printing unit and a blade finish milling unit, wherein the impeller printing unit comprises a first clamp body 4, a substrate 1 and a first fixing part, as shown in fig. 2 and 3, the substrate 1 is disc-shaped, a positioning hole 2 is formed in the center of the substrate 1, and a plurality of first U-shaped notches for clamping are formed in the circumferential edge of the substrate 1; as shown in fig. 4 and 6, a positioning protrusion 10 is arranged at the center of the first fixture body 4, and the positioning protrusion 10 is used for positioning a positioning hole 2 at the center of the substrate 1; the height of the positioning bulge 10 is smaller than the depth of the positioning hole 2; as shown in fig. 5, a fixing groove 9 is formed in the first fixture body 4, the section of the fixing groove 9 is of an inverted T shape, and the first U-shaped notch can be opposite to the fixing groove 9; the first fixing part is used for fixing the substrate 1 and the first clamp body 4; the axis of the first clamp body 4 coincides with the center of rotation of the additive manufacturing apparatus. As shown in fig. 8, the blade finish milling unit comprises a second clamp body 11, a pressing plate 12 and a second fixing part, the axial lead of the second clamp body 11 coincides with the rotation center of the finish milling device, as shown in fig. 9, a boss 16 is arranged at the center of the second clamp body 11, and the boss 16 is used for positioning a center hole of an impeller printed by the impeller printing unit; the pressing plate 12 is used for pressing the impeller from above the impeller, and the second fixing portion is used for fixing the pressing plate 12, the impeller and the second clamp body 11.
As shown in fig. 2, the first fixing portion includes a first nut 6, a first bolt 7, a second nut 8, and a first washer, the first nut 6 and the second nut 8 being respectively mateable with the first bolt 7; the first nut 6 is a T-shaped nut which can be matched with the fixing groove 9, and the first bolt 7 can penetrate through the first U-shaped notch. The first washer is located between the base plate 1 and the second nut 8.
As shown in fig. 8, the second fixing part comprises a second gasket, a second bolt 13 and a third nut 14 matched with the second bolt 13, a through hole is arranged on the pressing plate 12, as shown in fig. 9, a threaded hole 15 is arranged on the second clamp body 11, and the through hole, the threaded hole 15 and the central hole of the impeller are opposite; the second bolt 13 can be screwed with the screw hole 15 after passing through the center holes of the pressing plate 12 and the impeller. A second washer is located between the pressure plate 12 and the third nut 14. The cross section of clamp plate 12 is T type, and the vertical portion of clamp plate 12 can fix a position the top recess of impeller. A plurality of second U-shaped notches 17 are formed in the circumferential direction of the second clamp body 11.
The specific implementation process is as follows:
When the material adding device is used, the first clamp body 4 is firstly fixed on a workbench of the material adding manufacturing equipment, and the axis of the first clamp body 4 is ensured to coincide with the rotation center of the material adding manufacturing equipment. The positioning protrusion 10 is aligned with the positioning hole 2, the substrate 1 is mounted on the first fixture body 4, and the substrate 1 is rotated so that the first U-shaped notch 3 on the substrate 1 is aligned with the fixing groove 9 on the first fixture body 4. And then the first bolt 7 is screwed on the first nut 6, the first nut 6 is installed in the fixing groove 9 of the first clamp body 4, the first bolt 7 is pushed to the first U-shaped notch 3 of the base plate 1, the first gasket and the second nut 8 are installed on the first bolt 7 and screwed, and at the moment, the additive manufacturing equipment can be opened for printing to form the impeller blank 5.
After printing, the second clamp body 11 is fixed on a workbench of the finish milling equipment through the second U-shaped notch 17, and the axis of the second clamp body 11 is ensured to coincide with the rotation center of the finish milling equipment. The impeller blank 5 is then mounted on the second clamp body 11 with the disc end face and the inner bore of the impeller as positioning references. The second bolt 13 is screwed into the boss 16 of the second clamp body 11, the pressing plate 12, the second gasket and the third nut 14 are finally installed, the third nut 14 is screwed, and at the moment, the finish milling equipment can be opened to process the blade.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 embodiment of the present application, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (5)
1. A ternary flow impeller metal substrate additive manufacturing device which is characterized in that: the device comprises an impeller printing unit and a blade finish milling unit, wherein the impeller printing unit comprises a first clamp body, a substrate and a first fixing part, the substrate is disc-shaped, a positioning hole is formed in the center of the substrate, and a plurality of first U-shaped notches used for clamping are formed in the circumferential edge of the substrate; the center of the first clamp body is provided with a positioning bulge, and the positioning bulge is used for positioning a positioning hole in the center of the substrate; the height of the positioning bulge is smaller than the depth of the positioning hole; the first clamp body is provided with a fixing groove, and the first U-shaped notch can be opposite to the fixing groove; the first fixing part is used for fixing the substrate and the first clamp body; the axial lead of the first clamp body coincides with the rotation center of the additive manufacturing equipment; the blade finish milling unit comprises a second clamp body, a pressing plate and a second fixing part, the axial lead of the second clamp body coincides with the rotation center of the finish milling equipment, a boss is arranged at the center of the second clamp body and used for positioning a center hole of an impeller printed by the impeller printing unit; the pressing plate is used for pressing the impeller from the upper side of the impeller, and the second fixing part is used for fixing the pressing plate, the impeller and the second clamp body; the section of the pressing plate is T-shaped, and the vertical part of the pressing plate can position the top groove of the impeller; a plurality of second U-shaped notches are formed in the circumferential direction of the second clamp body.
2. The three-way impeller metal substrate additive manufacturing device according to claim 1, wherein: the section of the fixing groove is inverted T-shaped, the first fixing part comprises a first nut, a first bolt and a second nut, and the first nut and the second nut can be matched with the first bolt respectively; the first nut adopts a T-shaped nut which can be matched with the fixed groove, and the first bolt can penetrate through the first U-shaped notch.
3. The three-way impeller metal substrate additive manufacturing device according to claim 1, wherein: the second fixing part comprises a second bolt and a third nut matched with the second bolt, a through hole is formed in the pressing plate, a threaded hole is formed in the second clamp body, and the through hole, the threaded hole and the central hole of the impeller are opposite to each other; the second bolt can pass through the center holes of the pressing plate and the impeller and then is in threaded connection with the threaded hole.
4. The three-way impeller metal substrate additive manufacturing device according to claim 2, wherein: the first fixing portion further comprises a first gasket, and the first gasket is located between the base plate and the second nut.
5. A three-way impeller metal substrate additive manufacturing device according to claim 3, wherein: the second fixing portion further comprises a second gasket, and the second gasket is located between the pressing plate and the third nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464463.5A CN112571076B (en) | 2020-12-14 | 2020-12-14 | Ternary flow impeller metal substrate additive manufacturing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464463.5A CN112571076B (en) | 2020-12-14 | 2020-12-14 | Ternary flow impeller metal substrate additive manufacturing device |
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| CN112571076A CN112571076A (en) | 2021-03-30 |
| CN112571076B true CN112571076B (en) | 2024-06-07 |
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| CN112571076A (en) | 2021-03-30 |
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