CN115446365B - Flexible milling tool for special-shaped composite material component - Google Patents
Flexible milling tool for special-shaped composite material component Download PDFInfo
- Publication number
- CN115446365B CN115446365B CN202211179933.2A CN202211179933A CN115446365B CN 115446365 B CN115446365 B CN 115446365B CN 202211179933 A CN202211179933 A CN 202211179933A CN 115446365 B CN115446365 B CN 115446365B
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- Prior art keywords
- shaped
- limiting block
- tool
- base
- block
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- 238000003801 milling Methods 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 229920007790 polymethacrylimide foam Polymers 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000003754 machining Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000007306 turnover Effects 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention provides a flexible milling tool for a special-shaped composite material member, and belongs to the technical field of composite material member manufacturing. The tool comprises a base, a limiting plate, a lifting transmission device, a scale bracket, PMI foam, a lateral fixing rod, a positioning sleeve, a U-shaped track groove, a sliding block, an L-shaped limiting block, a locking valve and a tool setting block. Compared with the traditional special milling tool, the tool disclosed by the invention has the advantages that the structure is novel, the operation is convenient, the numerical control milling of all structural components with different sizes can be realized only by replacing PMI foam, the manufacturing period is short, the response speed is high, and the cost and the universality are strong. Meanwhile, the PMI foam has small density and light weight, can be piled up or stored by a simple layer rack in a separated mode, can be operated by a single person without any instrument when in turnover, and greatly reduces the requirements on storage space and turnover equipment; meanwhile, a large amount of manufacturing cost is saved, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of composite material member manufacturing, and relates to a flexible milling tool for a special-shaped composite material member.
Background
With the great improvement of the application degree of the composite material component on the aircraft, the configuration of the composite material component is more and more complex, and the composite material component has been developed into a single-curve, double-curve, multi-curve and other special-shaped structures from a simple panel. The composite material cannot be processed in a net size due to the problems of edge effect and the like, a certain margin is reserved at the edge of the component, and after the composite material is solidified and molded, the outer contour of the composite material is processed to a theoretical size. Along with the improvement of the automation degree of aircraft assembly, the requirement on the appearance precision of the manufactured piece is higher and higher, and the requirement on high precision cannot be met by manually processing the appearance of the component, so that most of the existing composite material manufactured pieces are subjected to numerical control milling. By adopting numerical control milling, all the tools for supporting and fixing the components are required, so that the components are fixed at the relative positions in the milling process, the problems that vibration and shake are avoided and the processing quality and precision are affected are solved, and meanwhile, a cutter-leaving groove is reserved in the tool to protect the milling cutter head from being damaged or broken due to collision with the tools in the milling process.
When the numerical control milling component is of a special structure, a milling tool matched with the component profile is needed to realize milling in a matching way. Therefore, each component requires a special milling tool. The special tool is mainly made of metal materials, the manufacturing period is long, and the manufacturing cost is high. When the component is developed and needs to be quickly responded or the appearance of the component needs to be adjusted, the traditional special tool is high in cost and cannot meet the period requirement. Meanwhile, when the member has a sandwich core material, the core material is required to be milled from the plate material into a shape with chamfer angles and preset shapes through numerical control. Typically, one component has several cores and is not uniform in size. At this time, if a traditional special milling tool is adopted, the overall manufacturing cost of the component is greatly increased. Meanwhile, the special milling tool is heavy, special equipment is needed for turnover, a large area is needed during storage, if the space is required to be well utilized, a three-dimensional warehouse is needed to be built, and the problems can greatly improve the turnover and management cost of the tool.
Disclosure of Invention
In order to solve the problems, the invention provides a flexible milling tool for a special-shaped composite material member, wherein flexible Polymethacrylimide (PMI) foam in the tool is replaced by adjusting the position of a limiting block, so that milling of members of different configurations is realized. The invention greatly reduces the manufacturing period of the tool, reduces the manufacturing cost and improves the working efficiency.
The technical scheme of the invention is as follows:
A flexible milling tool for special-shaped composite material components comprises a base 1, a limiting plate 2, a lifting transmission device 3, a manual lifting handle 4, a scale bracket 5, PMI foam 6, a lateral fixing rod 7, a positioning sleeve 8, a U-shaped track groove 9, a sliding block 10, an L-shaped limiting block 11, a limiting block 12, a locking valve 14 and a tool setting block 16.
The base 1 is made of high-strength wear-resistant aluminum material, and provides an integral mounting support for other parts of the whole tool.
The lifting transmission device 3 is arranged on the base 1 and positioned at one corner of the base 1, and is provided with a manual lifting handle 4.
The limiting plate 2 is made of high-strength wear-resistant aluminum materials, the two limiting plates are arranged on the base 1 at 90 degrees, and the end parts of the limiting plates are connected with the lifting transmission device 3. A plurality of locating sleeves 8 are uniformly distributed at the top end of each limiting plate 2.
The scale bracket 5 is provided with height scales and guide grooves, and the guide grooves are connected with the end part of the limiting plate 2, which is not connected with the lifting transmission device 3, in a matched manner, so as to limit the limiting plate 2; meanwhile, the scale bracket 5 also plays a role in supporting and connecting the lifting transmission device 3. The lifting transmission device 3 is driven by the manual lifting handle 4, so that the limiting plate 2 is driven to adjust the height of the limiting plate along the guide groove of the scale bracket 5, and PMI foams with different sizes are fixed.
The PMI foam 6 provides a molded surface consistent with the component and is used for supporting and fixing the component, and the flexible function of the tool is realized by replacing the PMI foam 6.
The lateral fixing rod 7 is inserted from the locating sleeve 8 at the top end of the limiting plate 2 and is connected with a corresponding prefabricated hole on the base 1, so that the rigidity of the limiting plate is enhanced, and the machining precision is ensured.
The U-shaped track groove 9 is made of wear-resistant high-hardness tool steel, and is formed by two parts, wherein one part is arranged on the side surface of the limiting plate 2 in parallel, and the other part is connected with the limiting block 12 through the sliding block 10; the other is obliquely arranged at the diagonal position of the base 1, and is connected with an L-shaped limiting block 11 through a sliding block 10. The fixing of PMI foams 6 with different sizes is realized by sliding the limiting block 12 and the L-shaped limiting block 11 and locking the L-shaped limiting block 11 and the limiting block 12 with the adjusted relative positions on the base 1 through the locking valve 14.
The tool setting block 16 is arranged on the base 1 and used for positioning tool coordinates of milling equipment and programming a milling program.
Furthermore, the surfaces of the bracket scale 5, the L-shaped limiting block 11 and the limiting block 12, which are in contact with the PMI foam 6, are provided with a protection pad 15; the protective pad 15 is made of fluoroplastic, and prevents damage to the PMI foam 6.
The invention has the beneficial effects that: compared with the traditional special milling tool, the numerical control milling tool is novel in structure, convenient to operate, capable of being applicable to numerical control milling of all structural components with different sizes only by replacing PMI foam, short in manufacturing period, high in response speed, low in cost and high in universality. Meanwhile, the PMI foam has small density and light weight, can be piled up or stored by a simple layer rack in a separated mode, can be operated by a single person without any instrument when in turnover, and greatly reduces the requirements on storage space and turnover equipment; meanwhile, a large amount of manufacturing cost is saved, and the working efficiency is improved.
Drawings
Fig. 1 is a front view of a flexible milling tool for a special-shaped composite member.
Fig. 2 is a left side view of the flexible milling tool for the special-shaped composite material member.
Fig. 3 is a schematic cross-sectional view of the slider, stopper and connecting bolt after assembly.
In the figure: 1, a base; 2, limiting plates; 3, lifting transmission device; 4, manually lifting the handle; 5a scale bracket; 6PMI foam; 7, fixing the rod laterally; 8, positioning sleeves; 9U-shaped track grooves; 10 sliding blocks; an 11L-shaped limiting block; a 12 limiting block; 13 connecting bolts; 14 locking the valve; 15, a protective pad; 16 tool setting blocks.
Detailed Description
The following detailed description of the invention is further illustrated in conjunction with the examples and the accompanying drawings, but is not intended to limit the invention.
The flexible milling tool for the special-shaped composite material component shown in the figures 1-2 comprises a base 1, a limiting plate 2, a lifting transmission device 3, a manual lifting handle 4, a scale bracket 5, PMI foam 6, a lateral fixing rod 7, a positioning sleeve 8, a U-shaped track groove 9, a sliding block 10, an L-shaped limiting block 11, a limiting block 12, a connecting bolt 13, a locking valve 14 and a tool setting block 16.
The base 1 provides an integral mounting support for other parts of the whole tool.
The lifting transmission device 3 is arranged on the base 1 and positioned at one corner of the base 1, and is provided with a manual lifting handle 4.
The limiting plates 2 are arranged on the base 1 at 90 degrees, and the end parts of the limiting plates are connected with the lifting transmission device 3. A plurality of locating sleeves 8 are uniformly distributed at the top end of each limiting plate 2.
The scale bracket 5 is provided with height scales and guide grooves, and the guide grooves are connected with the end part of the limiting plate 2, which is not connected with the lifting transmission device 3, in a matched manner, so as to limit the limiting plate 2; meanwhile, the scale bracket 5 also plays a role in supporting and connecting the lifting transmission device 3. The lifting transmission device 3 is driven by the manual lifting handle 4, so that the limiting plate 2 is driven to adjust the height of the limiting plate along the guide groove of the scale bracket 5, and PMI foams with different sizes are fixed.
The PMI foam 6 provides a molded surface consistent with the component and is used for supporting and fixing the component, and the flexible function of the tool is realized by replacing the PMI foam 6.
The lateral fixing rod 7 is inserted from the locating sleeve 8 at the top end of the limiting plate 2 and is connected with a corresponding prefabricated hole on the base 1, so that the rigidity of the limiting plate is enhanced, and the machining precision is ensured.
The limiting block 12 and the L-shaped limiting block 11 are respectively connected with a sliding block 10 through connecting bolts 13.
The two U-shaped track grooves 9 are arranged in parallel on the side surface of a limiting plate 2, and the limiting block 12 is connected with the U-shaped track grooves through a sliding block 10; the other is obliquely arranged at the diagonal position of the base 1, and is connected with an L-shaped limiting block 11 through a sliding block 10. The fixing of PMI foams 6 with different sizes is realized by sliding the limiting block 12 and the L-shaped limiting block 11 and locking the L-shaped limiting block 11 and the limiting block 12 with the adjusted relative positions on the base 1 through the locking valve 14.
The tool setting block 16 is arranged on the base 1 and used for positioning tool coordinates of milling equipment and programming a milling program.
The specific implementation steps are as follows:
1) Placing the whole flexible milling tool into numerical control milling equipment;
2) Shaking the manual lifting handle 4 to lift the limiting plate 2 to the height which is the same as the thickness of the PMI foam 6 blank;
3) The L-shaped limiting block 11 and the limiting block 12 are respectively connected to the sliding block 10 through connecting bolts 13 and are screwed down;
4) Cleaning the base 1, the L-shaped limiting block 11 and the limiting block 12 to remove foreign matters on the base;
5) Placing a PMI foam 6 blank on the base 1, selecting a proper position according to the size of the PMI foam 6 blank, inserting a lateral fixing rod 7 into a locating sleeve 8 at the top end of the limiting plate 2 and a hole corresponding to the base 1, preventing the limiting plate from being deformed locally, and ensuring that the PMI foam and the limiting plate can be tightly adhered completely;
6) After the blank of the PMI foam 6 is abutted against the limiting plate 2, the L-shaped limiting block 11 and the limiting block 12 are respectively regulated to be abutted against the blank of the PMI foam 6, the relative positions are regulated, the locking valve 14 is screwed, and the L-shaped limiting block 11 and the limiting block 12 are fixed at the positions;
7) Carrying out numerical control milling on the PMI foam 6 blank, and processing until the PMI foam 6 blank is consistent with the outer surface of a member to be processed;
8) Cleaning the waste materials after milling, cleaning the scraps by a dust collection device, and pasting 1 layer of single-sided adhesive isolating film on the surface to prevent damage to PMI foam during subsequent pasting and removing of components;
9) The external surface of the member to be processed is wiped by dipping the cleaning agent with the white rag until the clean white rag has no different colors;
10 Pasting double-sided adhesive on the milled PMI foam, and pasting the cleaned member to be processed on the double-sided adhesive;
11 Numerical control milling is carried out on the component;
12 Taking down the component and the double faced adhesive tape, cleaning, and delivering after being checked to be qualified;
13 If the same component parts are machined, repeating steps 9) -11); repeating steps 7) -11) if PMI foam is damaged during processing of the previous component;
14 If parts with different configurations need to be processed, the locking valve 14 is unscrewed, the L-shaped limiting block 11 and the limiting block 12 slide out, PMI foam is taken down, and the steps 4-11) are repeated.
Claims (5)
1. The flexible milling tool for the special-shaped composite material component is characterized by comprising a base (1), a limiting plate (2), a lifting transmission device (3), a manual lifting handle (4), a scale bracket (5), PMI foam (6), a lateral fixing rod (7), a positioning sleeve (8), a U-shaped track groove (9), a sliding block (10), an L-shaped limiting block (11), a limiting block (12) and a locking valve (14);
the base (1) provides an integral mounting support for parts of the whole tool;
The lifting transmission device (3) is arranged on the base (1) and positioned at one corner of the base (1), and a manual lifting handle (4) is arranged on the lifting transmission device;
The two limiting plates (2) are arranged on the base (1) at 90 degrees, and the end parts of the limiting plates are connected with the lifting transmission device (3); a plurality of positioning sleeves (8) are uniformly distributed at the top end of each limiting plate (2);
the scale bracket (5) is provided with a height scale and a guide groove, the guide groove is connected with the end part of the limiting plate (2) which is not connected with the lifting transmission device (3) in a matched manner, and the limiting plate (2) is limited; meanwhile, the scale bracket (5) also plays a role in supporting and connecting the lifting transmission device (3); the lifting transmission device (3) is driven by the manual lifting handle (4), so that the limiting plate (2) is driven to adjust the height of the limiting plate along the guide groove of the scale bracket (5) to fix PMI foams with different sizes;
The PMI foam (6) provides a profile consistent with the component for supporting and securing the component;
The lateral fixing rod (7) is inserted from a locating sleeve (8) at the top end of the limiting plate (2) and is connected with a corresponding prefabricated hole on the base (1) so as to enhance the rigidity of the limiting plate and ensure the machining precision;
The two U-shaped track grooves (9) are arranged in parallel on the side surface of a limiting plate (2), and the limiting block (12) is connected with the U-shaped track grooves through a sliding block (10); the other is obliquely arranged at the diagonal position of the base (1), and is connected with an L-shaped limiting block (11) through a sliding block (10); the position of the PMI foam is adjusted through the sliding limiting block (12) and the L-shaped limiting block (11), the L-shaped limiting block (11) and the limiting block (12) with the adjusted relative positions are locked on the base (1) through the locking valve (14), and the PMI foam with different sizes is fixed.
2. The flexible milling tool for the special-shaped composite material component, as set forth in claim 1, further comprising a tool setting block (16), wherein the tool setting block (16) is disposed on the base (1) and is used for positioning tool coordinates by the milling equipment and programming a milling program.
3. The flexible milling tool for the special-shaped composite material member according to claim 1 or 2, wherein the surfaces of the scale bracket (5), the L-shaped limiting block (11) and the limiting block (12) which are in contact with the PMI foam (6) are provided with protective pads (15) so as to prevent the PMI foam from being damaged.
4. The flexible milling tool for the special-shaped composite material member according to claim 1 or 2, wherein the limiting block (12) and the L-shaped limiting block (11) are respectively connected with a sliding block (10) through connecting bolts (13).
5. A flexible milling tool for special-shaped composite material components according to claim 3, wherein the limiting block (12) and the L-shaped limiting block (11) are respectively connected with a sliding block (10) through connecting bolts (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211179933.2A CN115446365B (en) | 2022-09-26 | 2022-09-26 | Flexible milling tool for special-shaped composite material component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211179933.2A CN115446365B (en) | 2022-09-26 | 2022-09-26 | Flexible milling tool for special-shaped composite material component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115446365A CN115446365A (en) | 2022-12-09 |
| CN115446365B true CN115446365B (en) | 2024-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211179933.2A Active CN115446365B (en) | 2022-09-26 | 2022-09-26 | Flexible milling tool for special-shaped composite material component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115446365B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539182A (en) * | 2019-07-26 | 2019-12-06 | 中国航空工业集团公司济南特种结构研究所 | Cavity wedge form PMI foam structure location frock |
| CN113771116A (en) * | 2021-09-18 | 2021-12-10 | 成都凯迪精工科技有限责任公司 | Machining method of PMI foam filling part |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2283938C (en) * | 1997-05-06 | 2007-04-17 | The Boeing Company | Hybrid lay-up tool |
| CN203409538U (en) * | 2013-07-16 | 2014-01-29 | 江苏纽泰格有限公司 | Clamp for machining center shaft square table of foaming mould |
| CN215847136U (en) * | 2021-08-19 | 2022-02-18 | 沈阳飞机工业（集团）有限公司 | Magnet adsorption type clamping plate milling tool |
-
2022
- 2022-09-26 CN CN202211179933.2A patent/CN115446365B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539182A (en) * | 2019-07-26 | 2019-12-06 | 中国航空工业集团公司济南特种结构研究所 | Cavity wedge form PMI foam structure location frock |
| CN113771116A (en) * | 2021-09-18 | 2021-12-10 | 成都凯迪精工科技有限责任公司 | Machining method of PMI foam filling part |
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| Publication number | Publication date |
|---|---|
| CN115446365A (en) | 2022-12-09 |
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