CN119609574B - Manufacturing and processing methods for curved and irregularly shaped parts - Google Patents
Manufacturing and processing methods for curved and irregularly shaped partsInfo
- Publication number
- CN119609574B CN119609574B CN202411837691.0A CN202411837691A CN119609574B CN 119609574 B CN119609574 B CN 119609574B CN 202411837691 A CN202411837691 A CN 202411837691A CN 119609574 B CN119609574 B CN 119609574B
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- milling
- blank
- cutting
- processing
- curved surface
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention belongs to the technical field of production and processing of curved surface special-shaped parts, and particularly relates to a special production and processing method of a curved surface special-shaped part, comprising the following steps of S1, manufacturing a three-dimensional schematic diagram of a part revolution body according to a longitudinal section of a part to be processed; the method comprises the steps of S2, obtaining a part revolution body blank according to a manufactured part revolution body three-dimensional schematic diagram, S3, turning two end faces, an inner curved surface and an outer curved surface of the part revolution body blank by using a precise numerical control lathe, S4, dividing the turned part revolution body blank into a plurality of independent part blanks by using dividing equipment, and S5, carrying out size and chamfer forming processing on each divided part blank by using milling equipment, thus completing the whole processing process of the part to be processed. According to the invention, the part to be processed is generated into the revolving body and divided, so that complex, low-efficiency and low-precision milling processing can be converted into simple, high-efficiency and high-precision turning processing, and the processing efficiency and the processing quality of a workpiece are effectively improved.
Description
Technical Field
The invention relates to a production and processing method of a curved surface special-shaped part, and belongs to the technical field of production and processing of curved surface special-shaped parts.
Background
Along with the development of science and technology, the intellectualization and informatization enter a high-speed development stage, the appearance forms of parts are more and more complex, and the types of curved surfaces, spheres and special-shaped parts are more and more, so that strict requirements are put on the processing method of the parts. In particular, some special-shaped pieces with curved surfaces are common in the machining manufacturing industry. For such parts, the production and processing method commonly adopted in the prior art is to use a processing center to process in a milling mode. For example, a method for machining a curved surface part disclosed in application publication No. CN105290712a, a method for numerical control milling of a thin-wall curved surface special-shaped part disclosed in application publication No. CN105382313a, and the like.
In the milling process of the special-shaped curved surface part by using the machining center, the ball head cutter is used for machining, the numerical control cutter path programming is complex, the cutter feeding amount and the step distance are small, the machining time of one part is long, the machining efficiency is low, and in the curved surface machining process, the cutter vibration and the cutter vibration are easy to occur, so that the smoothness of the inner surface and the outer surface of the machined part is poor, and the production and machining quality of the part is influenced.
Disclosure of Invention
According to the defects in the prior art, the invention aims to provide the production and processing method for the curved surface special-shaped part, which can improve the processing efficiency and the processing quality.
The invention relates to a production and processing method of a curved surface special-shaped part, which comprises the following steps:
S1, manufacturing a three-dimensional schematic diagram of a part revolution body according to a longitudinal section of a part to be processed;
s2, obtaining a part revolution body blank according to the manufactured part revolution body three-dimensional schematic diagram;
s3, turning the two end faces, the inner curved surface and the outer curved surface of the part revolving body blank by using a precise numerical control lathe;
S4, cutting the turned part revolution body blank into a plurality of independent part blanks by using cutting equipment;
And S5, performing size and chamfer forming processing on the segmented part blanks by adopting milling equipment, and completing the whole processing process of the part to be processed.
The manufacturing process of the three-dimensional schematic diagram of the part revolution solid in the S1 specifically includes firstly cutting the part to be processed along the longitudinal center line by using three-dimensional software, projecting a curve, and then rotating the projected curve for one circle to form the three-dimensional schematic diagram of the part revolution solid.
Further, the part revolution solid blank obtained in the step S2 is cylindrical.
The step S4 of cutting the part revolution solid blank is specifically that a cutting tool is adopted to position and clamp the part revolution solid blank, and then the cutting tool is clamped on cutting equipment to carry out part revolution solid blank cutting operation.
Further, the cutting tool comprises a cutting main body and a cutting top disc, wherein the cutting main body is provided with a cutting clamping part and an end face groove, the cutting top disc is provided with an inner positioning hole and a central positioning hole, a plurality of saw blade cutter wiring grooves are correspondingly formed in the cutting main body and the cutting top disc, a positioning component is arranged between the cutting main body and the cutting top disc, the outer arc surface of the cutting main body is in fit with the inner arc surface of the part revolving body blank, the end face groove is matched with the inner positioning hole to be used for positioning and clamping the part revolving body blank, the positioning component is used for guaranteeing that the positions of the cutting main body and the saw blade cutter wiring grooves in the cutting top disc are consistent in each clamping, the cutting clamping part is used for clamping a chuck of cutting equipment, the center positioning hole is used for propping a tip of the cutting equipment, and then the saw blade cutters of the cutting equipment can cut the part revolving body blank into a plurality of part revolving body blanks through the saw blade cutter wiring grooves.
Further, the positioning assembly comprises a positioning pin connected to the dividing main body, and an alignment positioning hole correspondingly adapted to the positioning pin is formed in the dividing top plate.
The forming processing of the part blank in the step S5 is specifically that the part blank is clamped through a double-side milling tool, then the double-side milling tool is clamped on milling equipment to conduct double-side milling and chamfering processing operation of the part blank, then the part blank is detached from the double-side milling tool and clamped in a large-head milling tool, and then the large-head milling tool is clamped on the milling equipment to conduct large-head milling and drilling processing operation of the part blank.
Further, the milling bilateral tool comprises a milling bilateral main body, one end of the milling bilateral main body is provided with a milling bilateral clamping part, the other end of the milling bilateral main body is provided with a part blank positioning groove, two sides of the part blank positioning groove are respectively provided with a flat milling cutter wiring groove, a first symbol-shaped pressing block and a second symbol-shaped pressing block are detachably connected to the milling bilateral main body, the part blank positioning groove is in fit with two end surfaces and an outer curved surface of a part blank, the bottom surface of the first symbol-shaped pressing block is in fit with a large-end inner curved surface of the part blank, the bottom surface of the second symbol-shaped pressing block is in fit with an inner curved surface of the part blank, the milling bilateral clamping part is used for being clamped on a chuck of milling equipment, and then the flat milling cutter of the milling equipment can mill bilateral and chamfering machining operation on the part blank through the flat milling cutter wiring groove.
Further, the large-head milling tool comprises a large-head milling main body, a large-head milling clamping part and a large-head milling positioning groove are arranged on the large-head milling main body, a plurality of pressing blocks corresponding to the large-head milling positioning groove are detachably connected to the large-head milling main body, the bottom surface of the large-head milling positioning groove is in fit with the outer curved surface of the part blank in a shape of a character, both sides and the tip surface of the part blank are in fit with the large-head milling positioning groove, the bottom surface of the character pressing plate is in fit with the inner curved surface of the part blank in a shape of a character, the large-head milling clamping part is used for clamping on a chuck of milling equipment, and then the milling equipment can mill the large head and drill the part blank.
Compared with the prior art, the invention has the following beneficial effects:
According to the production and processing method of the curved surface special-shaped part, the part to be processed is generated into the revolving body and divided, so that complex, low-efficiency and low-precision milling processing can be converted into simple, high-efficiency and high-precision turning processing, and the processing efficiency and the processing quality of a workpiece are effectively improved.
Drawings
FIG. 1 is a schematic view of a structure of a part to be machined in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a part revolution solid blank in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a segmentation tool according to an embodiment of the invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a cross-sectional view at A-A in FIG. 4;
FIG. 6 is a schematic structural diagram of a double-sided milling tool according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a large end milling tool according to an embodiment of the present invention.
In the figure, 1, a main body is divided; 2, a cutting clamping part, 3, a saw blade knife wiring groove, 4, a part blank, 5, a cutting top disc, 6, a center positioning hole, 7, a positioning pin, 8, an alignment positioning hole, 9, an end surface groove, 10, a positioning hole, 11, a double-side milling main body, 12, a double-side milling clamping part, 13, a flat milling cutting wiring groove, 14, a first symbol-shaped pressing block, 15, a second symbol-shaped pressing block, 16, a large-end milling main body, 17, a large-end milling clamping part, 18, a large-end milling positioning groove, 19, a pressing block, 20 and a symbol-shaped pressing plate.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
example 1:
taking production and processing of the fin resistance sheet as an example, the structure of the fin resistance sheet is shown in fig. 1, the original processing method is that a five-axis processing center is used for milling the whole course of a blank, the process route is milling and forming, the total height is fixed, a ball head cutter is used for processing, layered milling is needed, the cutting amount and the step pitch are small, the efficiency is low, the processing process is long, the curved surface processing process of the ball cutter is unstable, the cutter chatter phenomenon occurs, the roughness is poor, and the processing time is about 120 minutes/piece.
The scheme adopts a machining method of turning instead of milling, and the optimized process route comprises finish turning one end, finish turning the other end, dividing, milling and forming, chamfering, milling a large end and drilling.
The invention relates to a production and processing method of a curved surface special-shaped part, which comprises the following steps:
s1, firstly, using three-dimensional software to cut a part to be processed along a longitudinal center line and project a curve, and then rotating the projected curve for one circle to manufacture and form a part revolution body three-dimensional schematic diagram;
S2, obtaining a part revolution body blank according to the manufactured part revolution body three-dimensional schematic diagram, wherein the structure of the part revolution body blank is shown in FIG. 2;
s3, because the part revolution solid blank is cylindrical, two ends can be directly and respectively clamped on a chuck of a precise numerical control lathe, and turning is carried out on two end faces, an inner curved surface and an outer curved surface of the part revolution solid blank by using the precise numerical control lathe;
S4, positioning and clamping a part revolving body blank by adopting a cutting tool, as shown in fig. 3-5, wherein the cutting tool comprises a cutting main body 1 and a cutting top disc 5, the cutting main body 1 is provided with a cutting clamping part 2 and an end surface groove 9, the cutting top disc 5 is provided with an inner positioning hole 10 and a center positioning hole 6, the cutting main body 1 and the cutting top disc 5 are correspondingly provided with a plurality of saw blade knife wiring grooves 3, a positioning component is arranged between the cutting main body 1 and the cutting top disc 5, the positioning component comprises a positioning pin 7 connected to the cutting main body 1, the cutting top disc 5 is provided with an alignment positioning hole 8 correspondingly matched with the positioning pin 7, the positioning pin 7 is eccentrically arranged, the alignment of the saw blade knife wiring grooves 3 can be completed by inserting the positioning pin 7 into the alignment positioning hole 8, the outer arc surface of the cutting main body 1 is matched with the inner arc surface of the part revolving body blank, the end surface groove 9 is matched with the inner positioning hole 10 and is used for positioning and clamping the part revolving body blank, the positioning component is used for ensuring that the position of the cutting main body 1 is consistent with the saw blade wiring grooves 3 on the cutting top disc 5 when clamping each time, the cutting main body 1 and the center clamping device is used for clamping the saw blade wiring grooves 3 on the cutting top disc 5, and the cutting top disc 4 is used for clamping the saw blade 4, thus the cutting blank is clamped independently, and the part is clamped by the positioning and the tool is positioned and clamped by the independent;
S5, clamping the part blank 4 through a double-sided milling tool, as shown in FIG. 6, wherein the double-sided milling tool comprises a double-sided milling main body 11, one end of the double-sided milling main body 11 is provided with a double-sided milling clamping part 12, the other end of the double-sided milling main body 11 is provided with a part blank positioning groove, two sides of the part blank positioning groove are respectively provided with a flat milling cutter wire slot 13, the double-sided milling main body 11 is detachably connected with a first symbol-shaped pressing block 14 and a second symbol-shaped pressing block 15, the part blank positioning groove is attached to two end surfaces and an outer curved surface symbol of the part blank 4, the bottom surface of the first symbol-shaped pressing block 14 is attached to a large-end inner curved surface symbol of the part blank 4, the bottom surface of the second symbol-shaped pressing block 15 is attached to an inner curved surface symbol of the part blank 4, the double-sided milling clamping part 12 is used for being clamped on a chuck of milling equipment, and then a flat milling cutter of the milling equipment can carry out double-sided milling and chamfering machining operation on the part blank 4 through the flat milling cutter wire slots 13; then the part blank 4 is detached from the double-side milling tool and clamped in the large-end milling tool, as shown in fig. 7, the large-end milling tool comprises a large-end milling main body 16, a large-end milling clamping part 17 and a large-end milling positioning groove 18 are arranged on the large-end milling main body 16, a plurality of pressing blocks 19 corresponding to the pressing blocks 20 are detachably connected to the large-end milling main body 16, the bottom surface of the large-end milling positioning groove 18 is in fit with the outer curved surface of the part blank 4, both sides and the tip surface of the part blank 4 are in fit with the large-end milling positioning groove 18, the bottom surface of the large-end milling clamping part 17 is used for clamping on a chuck of milling equipment, then the milling equipment can perform large-end milling and drilling operation on the part blank 4, thereby completing the whole processing.
According to the machining method of turning instead of milling, the original single-piece machining time is shortened to about 30 minutes, and the machining efficiency is greatly improved.
Claims (7)
1. The production and processing method of the curved surface special-shaped part is characterized by comprising the following steps of:
S1, manufacturing a three-dimensional schematic diagram of a part revolution body according to a longitudinal section of a part to be processed;
s2, obtaining a part revolution body blank according to the manufactured part revolution body three-dimensional schematic diagram;
s3, turning the two end faces, the inner curved surface and the outer curved surface of the part revolving body blank by using a precise numerical control lathe;
S4, cutting the turned part revolution body blank into a plurality of independent part blanks (4) by using cutting equipment, wherein the parts revolution body blank is positioned and clamped by a cutting tool firstly, and then the cutting tool is clamped on the cutting equipment to carry out part revolution body blank cutting operation; the cutting tool comprises a cutting main body (1) and a cutting top disc (5), wherein a cutting clamping part (2) and an end surface groove (9) are arranged on the cutting main body (1), an inner positioning hole (10) and a central positioning hole (6) are arranged on the cutting top disc (5), a plurality of saw blade knife wiring grooves (3) are correspondingly arranged on the cutting main body (1) and the cutting top disc (5), a positioning component is arranged between the cutting main body (1) and the cutting top disc (5), the outer arc surface of the cutting main body (1) is attached to the inner arc surface of a part revolving body blank, the end surface groove (9) is matched with the inner arc surface of the inner positioning hole (10) and used for positioning and clamping the part revolving body blank, the positioning component is used for ensuring that the positions of the cutting main body (1) and the saw blade knife wiring grooves (3) on the cutting top disc (5) are consistent during each clamping, the cutting clamping part (2) is used for clamping a chuck of cutting equipment, the center positioning hole (6) is used for jacking the cutting equipment, so that the cutting tool is completed, then the saw blade knife of the cutting equipment can perform cutting operation on the part revolving body blank through the saw blade wiring grooves (3), thereby dividing the part revolution solid blank into a plurality of part blanks (4);
and S5, performing size and chamfer forming processing on each segmented part blank (4) by adopting milling equipment, and thus completing the whole processing process of the part to be processed.
2. The method for producing and processing the curved surface special-shaped part according to claim 1, wherein the manufacturing process of the part revolution solid three-dimensional schematic diagram in S1 is characterized in that three-dimensional software is firstly used for cutting a part to be processed along a longitudinal center line and projecting a curve, and then the projected curve is rotated for one circle, so that the part revolution solid three-dimensional schematic diagram can be formed.
3. The method for producing and processing the curved surface special-shaped part according to claim 1, wherein the part revolution solid blank obtained in the step S2 is cylindrical.
4. The method for producing and processing the curved surface special-shaped part according to claim 1, wherein the positioning assembly comprises a positioning pin (7) connected to the dividing main body (1), and an alignment positioning hole (8) correspondingly matched with the positioning pin (7) is formed in the dividing top plate (5).
5. The method for producing and processing the curved surface special-shaped part according to any one of claims 1 to 4, wherein the forming and processing of the part blank (4) in the step S5 is specifically that the part blank (4) is clamped through a double-side milling tool, then the double-side milling tool is clamped on milling equipment to perform double-side milling and chamfering processing operation of the part blank (4), then the part blank (4) is detached from the double-side milling tool and clamped in a large-end milling tool, and then the large-end milling tool is clamped on the milling equipment to perform large-end milling and drilling processing operation of the part blank (4).
6. The method for producing and processing the special-shaped curved surface part according to claim 5, wherein the double-sided milling tool comprises a double-sided milling main body (11), one end of the double-sided milling main body (11) is provided with a double-sided milling clamping part (12), the other end of the double-sided milling main body (11) is provided with a part blank positioning groove, two sides of the part blank positioning groove are respectively provided with a flat milling cutter wire-way groove (13), the double-sided milling main body (11) is detachably connected with a first symbol-shaped pressing block (14) and a second symbol-shaped pressing block (15), the part blank positioning groove is in fit with two end surfaces and an outer curved surface symbol, the bottom surface of the first symbol-shaped pressing block (14) is in fit with a large-end inner curved surface symbol of the part blank (4), the bottom surface of the second symbol-shaped pressing block (15) is in fit with an inner curved surface symbol-shaped inner curved surface symbol of the part blank (4), the double-sided milling clamping part (12) is used for being clamped on a chuck of milling equipment, and then the flat milling cutter of the milling equipment can perform double-sided milling and chamfering processing operations on the part blank (4) through the flat milling cutter wire-way groove (13).
7. The method for producing and processing the special-shaped curved surface part according to claim 6, wherein the large-head milling tool comprises a large-head milling main body (16), a large-head milling clamping part (17) and a large-head milling positioning groove (18) are arranged on the large-head milling main body (16), a plurality of pressing blocks (19) corresponding to the large-head milling clamping part (20) are detachably connected to the large-head milling main body (16), the bottom surface of the large-head milling positioning groove (18) is in fit with the outer curved surface of the part blank (4), both side surfaces and the tip end surface of the part blank (4) are in fit with the large-head milling positioning groove (18), the bottom surface of the large-head milling clamping part (17) is used for being clamped on a chuck of milling equipment, and then the large-head milling and drilling operation can be performed on the part blank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411837691.0A CN119609574B (en) | 2024-12-13 | 2024-12-13 | Manufacturing and processing methods for curved and irregularly shaped parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411837691.0A CN119609574B (en) | 2024-12-13 | 2024-12-13 | Manufacturing and processing methods for curved and irregularly shaped parts |
Publications (2)
| Publication Number | Publication Date |
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| CN119609574A CN119609574A (en) | 2025-03-14 |
| CN119609574B true CN119609574B (en) | 2026-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411837691.0A Active CN119609574B (en) | 2024-12-13 | 2024-12-13 | Manufacturing and processing methods for curved and irregularly shaped parts |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290712A (en) * | 2015-12-01 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Machining method of curved surface part |
| CN105479117A (en) * | 2015-12-30 | 2016-04-13 | 山东汇金股份有限公司 | Machining method of special-shaped differential mechanism shell |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3138310U (en) * | 2007-10-16 | 2007-12-27 | 旺生 李 | Milling cutter polishing machine |
| CN112338454B (en) * | 2020-10-26 | 2022-04-05 | 宜昌船舶柴油机有限公司 | Three-dimensional simulation machining tool and method for special-shaped stainless steel thin-wall part |
| CN112453838B (en) * | 2020-12-23 | 2022-05-24 | 沈阳百祥机械加工有限公司 | Machining process of hemispherical eccentric concentric structural part and special tool thereof |
| CN217045585U (en) * | 2022-01-14 | 2022-07-26 | 河北华北柴油机有限责任公司 | Tool for machining large-eccentricity porous flying block iron casting |
| CN114669961B (en) * | 2022-03-01 | 2023-03-14 | 山西汾西重工有限责任公司 | Forming method of aluminum alloy large thick-walled special-shaped shell |
| CN114734208B (en) * | 2022-04-18 | 2023-03-03 | 中国科学院工程热物理研究所 | Integral blade ring structure of oblique flow or centrifugal impeller and machining method thereof |
| CN116175106A (en) * | 2022-06-02 | 2023-05-30 | 南通中能机械制造有限公司 | A material-saving and labor-saving processing method for arc-shaped surface assembly guide vanes |
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- 2024-12-13 CN CN202411837691.0A patent/CN119609574B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290712A (en) * | 2015-12-01 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Machining method of curved surface part |
| CN105479117A (en) * | 2015-12-30 | 2016-04-13 | 山东汇金股份有限公司 | Machining method of special-shaped differential mechanism shell |
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