CN111015533A - Small-size polishing tool and manufacturing method thereof - Google Patents
Small-size polishing tool and manufacturing method thereof Download PDFInfo
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- CN111015533A CN111015533A CN201911408518.8A CN201911408518A CN111015533A CN 111015533 A CN111015533 A CN 111015533A CN 201911408518 A CN201911408518 A CN 201911408518A CN 111015533 A CN111015533 A CN 111015533A
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- polishing tool
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- flexible substrate
- abrasive
- polishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0036—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by winding up abrasive bands
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention provides a small-size polishing tool and a manufacturing method thereof, relates to the field of leaf disc polishing, and comprises a polishing tool rod, a flexible substrate and a plurality of abrasive wires, wherein the polishing tool rod comprises a fixing part and a connecting part, the abrasive wires are connected with the connecting part, the flexible substrate is sleeved outside the connecting part, a first hole groove for the abrasive wires to pass through is formed in the flexible substrate, and the abrasive wires pass through the first hole groove and are wound on the outer surface of the flexible substrate. The small-size polishing tool and the manufacturing method thereof provided by the invention can adopt polishing tool rods and flexible substrates of different specifications to be used for small-size polishing tools of ball heads and any complex bus aiming at working conditions, can solve the numerical control polishing problem of similar characteristics such as the switching R of blisks of aero-engines and the like, and improve the manufacturing level and the service life of the aero-engines.
Description
Technical Field
The invention belongs to the field of leaf disc polishing, and particularly relates to a small-size polishing tool and a manufacturing method thereof.
Background
The aircraft engine blisk and other important parts mostly contain the switching R characteristic. The feature has a relatively small size, the local minimum radius can reach 1.5mm, and the feature is constrained by adjacent curved surfaces, so that the accessibility of the area is poor, and the feature can be machined only by a ball head tool. For example, in the numerical control milling process of the blisk, the back chipping of the switching R region is finished by using a ball end mill with the same size as that of the switching R. Due to the high surface quality requirements at the transition R, after the numerical control milling, the surface quality of the part often needs to be improved by polishing. At present, polishing of the transfer R and other similar characteristics can be almost carried out only by adopting a manual polishing mode. However, the manual polishing has many disadvantages, and the process is influenced by many uncertain factors such as the experience, mood and state of workers, so that the stability and consistency of polishing are poor, and the working life of aeroengine parts is adversely affected.
In recent years, many important parts represented by aircraft engine parts have been gradually polished by numerical control. Among them, multi-axis linkage abrasive belt polishing, multi-axis linkage numerical control machine polishing and robot polishing are typical numerical control polishing modes at present. As a new process for replacing manual polishing, numerical control polishing shows great advantages in polishing stability, precision and efficiency compared with manual polishing, and practical application of factory environment on parts such as single aviation blade and the like is realized at present.
However, the conventional numerical control polishing has certain difficulty aiming at the characteristics of blisk switching R and the like. Because the space of the switching R and other similar areas is narrow, interference is easily generated by adopting a mode of abrasive belt grinding and polishing; when machine tool polishing and robot polishing are adopted, a better scheme is adopted for polishing by adopting a small-size ball head polishing tool, but the manufacturing of the ball head polishing tool is a big problem because: (1) the service life, the precision and the consistency of the conventional polishing tool are poor, and the numerical control polishing is difficult to meet; (2) when the method provided by Beijing aerospace university in patent CN105818008A is adopted to manufacture the ball head polishing tool, the tool forming precision is low due to small size of the ball head part and large rigidity of the abrasive belt; (3) the size of the plating points of the electroplating abrasive belt is limited, and gaps need to be reserved between adjacent plating points, so that the number of the plating points distributed on the spherical surface of the polishing tool is small, and the service life is greatly reduced.
At present, no relevant report is available for numerical control polishing of small-size blisk transfer R characteristic areas.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a winding forming manufacturing method of a small-size polishing tool, which is used for solving the problems in the aspects of forming precision and service life of the small-size polishing tool.
In a first aspect, the invention provides a small-size polishing tool, which comprises a polishing tool rod, a flexible substrate and a plurality of abrasive wires, wherein the polishing tool rod comprises a fixing part and a connecting part, the abrasive wires are connected with the connecting part, the flexible substrate is sleeved outside the connecting part, a first hole groove for the abrasive wires to pass through is formed in the flexible substrate, and the abrasive wires pass through the first hole groove and are wound on the outer surface of the flexible substrate.
Further, in order to prevent the abrasive lines from being sunk into the flexible substrate and affecting the normal polishing of the tool, the polishing tool adopts a plurality of intermediate lines, the intermediate lines are connected with the connecting parts, and the intermediate lines penetrate through the first hole grooves and are wound outside the flexible substrate. Thereby, the connection strength between the abrasive wire and the flexible substrate can be enhanced.
Further, the abrasive wire is wound outside the intermediate wire, or the intermediate wire and the abrasive wire are wound on the outer surface of the flexible matrix in a crossed mode.
Further, the outer diameter of the connecting portion is smaller than the outer diameter of the fixing portion, and the inner diameter of the flexible base body is slightly larger than the outer diameter of the connecting portion.
Furthermore, the abrasive wires are uniformly wound on the flexible substrate in a net shape, a spiral shape or a ring shape.
In a second aspect, the present invention provides a method for manufacturing a small-sized polishing tool, which comprises the following main steps:
1) fixing a plurality of abrasive wires and a plurality of intermediate wires to a connection portion of a polishing tool rod;
2) sleeving the flexible substrate on the connecting part of the polishing tool rod;
3) and the abrasive material line and the intermediate line are passed through the first hole groove of the flexible substrate and wound on the surface of the flexible substrate.
Further, in step 3), a cementing agent is coated on the outer surface of the flexible matrix and the surfaces of the middle wire and the abrasive wire before the abrasive wire and the middle wire are wound, and then the flexible matrix and the middle wire are dried. And after the grinding material line and the middle line are wound, placing the small-size polishing tool in the cementing space, and taking out the small-size polishing tool after cementing is finished.
Further, the abrasive wire and the intermediate wire are wound in a wet winding process or a dry winding process.
The small-size polishing tool and the manufacturing method thereof have the advantages that the polishing tool rod is matched with the flexible substrate, the flexible substrate is sleeved on the connecting part of the polishing tool rod, the polishing tool is ensured to have rigidity to adapt to the high-speed rotation action of the polishing machine, and meanwhile, the polishing tool is flexible.
In addition, set up the abrasive material line and be connected with connecting portion, then passed first hole groove winding and at flexible base member outward appearance, this kind of design has strengthened the joint strength between polishing tool pole, flexible base member, the abrasive material line, avoids the accident between the three to drop, and the winding structure of abrasive material line on flexible base member will also play the effect of polishing. The tool can be used for polishing small sizes of a ball head and any complex bus by adopting polishing tool rods and flexible substrates of different specifications according to working conditions, can solve the problem of numerical control polishing of similar characteristics such as the switching R of the blisk of the aero-engine, and improves the manufacturing level and the service life of the aero-engine.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view showing a coupling structure of a small-sized polishing tool according to embodiment 1 of the present invention
Fig. 2 is a schematic view of the overall structure of a small-sized polishing tool according to embodiment 1 of the present invention.
FIG. 3 is a schematic view showing the structure of a polishing tool shaft according to embodiments 2 and 3 of the present invention.
Fig. 4 is a schematic view showing a coupling structure of small-sized polishing tools according to examples 2 and 3 of the present invention.
Fig. 5 is a schematic view of the manner of winding the intermediate wire in embodiment 2 of the present invention.
Fig. 6 is a schematic view of the overall configuration of a small-sized polishing tool according to embodiment 2 of the present invention.
Fig. 7 is a schematic sectional view taken along line a-a of fig. 6.
Fig. 8 is a schematic view of section B of fig. 7.
Fig. 9 is a schematic view of the manner of winding the intermediate wire in embodiment 3 of the present invention.
FIG. 10 is a schematic view showing the overall configuration of a small-sized polishing tool according to example 3 of the present invention.
In the figure, 1, a polishing tool rod, 11, a fixing part, 12, a connecting part, 2, an abrasive line, 3, a middle line, 4 and a flexible substrate.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all 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.
The following explains key terms appearing in the present invention.
The abrasive wire 2 of the present invention is a linear structure connected or coated with an abrasive, or a strip-shaped long strip with a certain width, and a metal wire such as a steel wire or a nickel wire that can be connected with the abrasive by gluing, plating, or the like may also be used.
The middle line 3 is a general linear structure which is not connected or coated with abrasive, or a strip-shaped long line with a certain width, and fiber silk threads such as hemp, cloth and the like can also be adopted.
The cementation space is a space in which the environment in the space is suitable for cementation.
Specific embodiments are shown below.
Example 1:
the utility model provides a small-size polishing tool, as shown in fig. 1, 2, includes polishing instrument pole 1, flexible base member 4 and a plurality of abrasive wire 2, polishing instrument pole 1 includes fixed part 11 and connecting portion 12, abrasive wire 2 is connected with connecting portion 12, flexible base member 4 suit is outside connecting portion 12, be provided with the first hole groove that supplies abrasive wire 2 to pass on the flexible base member 4, abrasive wire 2 passes first hole groove winding and is in the outward appearance of flexible base member 4.
In order to make the structure of the polishing tool neat and beautiful and ensure consistency, the outer diameter of the connecting part 12 is smaller than that of the fixing part 11, and the inner diameter of the flexible base body 4 is slightly larger than that of the connecting part 12.
Further, the polishing effect is ensured, and the abrasive wires 2 are uniformly wound on the flexible substrate 4 in a net shape, a spiral shape or a ring shape.
Example 2
On the basis of the embodiment 1, in order to prevent the abrasive wires 2 from sinking into the flexible substrate 4 and affecting the normal polishing of the tool, as shown in fig. 3-8, the polishing tool adopts a plurality of intermediate wires 3, the intermediate wires 3 are connected with the connecting parts 12, and the intermediate wires 3 are wound outside the flexible substrate 4 through the first hole grooves.
Furthermore, the abrasive line 2 is wound outside the middle line 3, and the middle line 3 and the abrasive line 2 can also be wound on the outer surface of the flexible substrate 4 in a crossed manner. The intermediate wire 3 may also be wound across the abrasive wire 2 on the outside of the flexible substrate 4.
Example 3
As shown in fig. 3, 4, 9 and 10, this embodiment is different from embodiment 2 only in that the intermediate wire and the abrasive wire are fixed in a looped manner.
The method for manufacturing the small-size polishing tool in the embodiment mainly comprises the following steps:
1) fixing a plurality of abrasive wires 2 and a plurality of intermediate wires 3 at a connecting portion 12 of a polishing tool bar 1;
2) sleeving the flexible substrate 4 on the connecting part 12 of the polishing tool rod 1;
3) the abrasive wire 2 and the intermediate wire 3 are passed through the first hole groove and wound on the surface of the flexible substrate 4.
Further, in step 3), a cementing agent is applied to the outer surface of the flexible substrate 4, the intermediate wire 3 and the surface of the abrasive wire 2 before the abrasive wire 2 and the intermediate wire 3 are wound, and then dried. After the grinding material line 2 and the middle line 3 are wound, the small-size polishing tool is placed in the cementing space, and is taken out after cementing is finished.
Further, the abrasive wire 2 and the middle wire 3 are wound by a wet winding process or a dry winding process.
According to the small-size polishing tool and the manufacturing method thereof, the polishing tool rod 1 and the flexible substrate 4 are matched, and the flexible substrate 4 is sleeved on the connecting part 12 of the polishing tool rod 1, so that the polishing tool is ensured to have rigidity to adapt to the high-speed rotation action of a polishing machine, and meanwhile, the polishing tool is flexible.
In addition, set up abrasive wire 2 and be connected with connecting portion 12, then passed first hole groove winding and at the 4 outward appearances of flexible base member, this kind of design has strengthened the joint strength between polishing tool pole 1, flexible base member 4, the abrasive wire 2, avoids the accident between the three to drop, and the winding structure of abrasive wire 2 on flexible base member 4 will also play the effect of polishing. The tool can be used for polishing small sizes of a ball head and any complex bus by adopting polishing tool rods 1 and flexible substrates 4 of different specifications according to working conditions, can solve the problem of numerical control polishing of similar characteristics such as the switching R of an aero-engine blisk, and improves the manufacturing level and the service life of the aero-engine.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A small-size polishing tool characterized by: including polishing instrument pole (1), flexible base member (4) and a plurality of abrasive material line (2), polishing instrument pole (1) includes fixed part (11) and connecting portion (12), abrasive material line (2) are connected with connecting portion (12), flexible base member (4) suit is outside connecting portion (12), be provided with the first hole groove that supplies abrasive material line (2) to pass on flexible base member (4), abrasive material line (2) pass first hole groove winding at flexible base member (4) outward appearance.
2. The small-size polishing tool according to claim 1, wherein: the flexible substrate comprises a plurality of middle lines (3), the middle lines (3) are connected with connecting portions (12), and the middle lines (3) penetrate through first hole grooves and are wound outside the flexible substrate (4).
3. The small-size polishing tool according to claim 2, wherein: the abrasive material line (2) is wound outside the middle line (3).
4. The small-size polishing tool according to claim 2, wherein: the middle line (3) and the grinding material line (2) are crossed and wound on the outer surface of the flexible substrate (4).
5. The small-size polishing tool according to claim 1, wherein: the outer diameter of the connecting portion (12) is smaller than that of the fixing portion (11), and the inner diameter of the flexible base body (4) is slightly larger than that of the connecting portion (12).
6. The small-sized polishing tool as set forth in any one of claims 1 to 5, wherein: the abrasive wires (2) are uniformly wound on the flexible substrate (4) in a net shape, a spiral shape or a ring shape.
7. A method for manufacturing a small-sized polishing tool mainly comprises the following steps:
1) fixing a plurality of abrasive lines (2) and a plurality of intermediate lines (3) at a connecting part (12) of a polishing tool rod (1);
2) sleeving the flexible substrate (4) on the connecting part (12) of the polishing tool rod (1);
3) the abrasive material line (2) and the intermediate line (3) penetrate through the first hole groove of the flexible substrate (4) and are wound on the surface of the flexible substrate (4).
8. The method of manufacturing a small-sized polishing tool according to claim 7, wherein: in the step 3), before the grinding material line (2) and the middle line (3) are wound, the cementing agent is coated on the outer surface of the flexible substrate (4), the middle line (3) and the surface of the grinding material line (2), and then the surfaces are dried.
9. The method of manufacturing a small-sized polishing tool according to claim 8, wherein: and in the step 3), after the grinding material line (2) and the middle line (3) are wound, placing the small-size polishing tool in a cementing space, and taking out the small-size polishing tool after cementing is finished.
10. The method of manufacturing a small-sized polishing tool according to claim 7, wherein: in the step 3), the winding mode of the abrasive wire (2) and the intermediate wire (3) adopts a wet winding process or a dry winding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911408518.8A CN111015533B (en) | 2019-12-31 | 2019-12-31 | Small-size polishing tool and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911408518.8A CN111015533B (en) | 2019-12-31 | 2019-12-31 | Small-size polishing tool and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN111015533A true CN111015533A (en) | 2020-04-17 |
| CN111015533B CN111015533B (en) | 2022-04-12 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB404150A (en) * | 1933-02-04 | 1934-01-11 | Rupert Evelyn Law Warburton | Improvements in and relating to abrasive elements for abrading tools |
| US2038782A (en) * | 1931-05-16 | 1936-04-28 | Hazel J Ellis | Abrasive element and method of making same |
| US3436871A (en) * | 1966-07-07 | 1969-04-08 | Hyprez Electrometallics Corp | Abrasive cutting tools |
| DE3332085A1 (en) * | 1983-09-06 | 1985-03-21 | Festo KG, 7300 Esslingen | Tool for roughening, or removing material by abrasion or cutting |
| CN201249410Y (en) * | 2008-08-04 | 2009-06-03 | 上海洗王摩登日用品有限公司 | Oblique grinding wheel |
| CN103659628A (en) * | 2013-12-03 | 2014-03-26 | 谢泽 | Buffing wheel based on fiber ropes containing chopped fibers and production method of buffing wheel |
| CN104723227A (en) * | 2015-03-06 | 2015-06-24 | 龙伍洋 | Machining tool enabling diamond to be arranged stably for machine tool and manufacturing method thereof |
| CN108000735A (en) * | 2017-12-29 | 2018-05-08 | 中国有色桂林矿产地质研究院有限公司 | A kind of annular super-hard abrasive wire and preparation method thereof |
| CN108624037A (en) * | 2018-05-21 | 2018-10-09 | 潜山县福达橡胶刷业制品厂 | A kind of cloth Special grinding material silk and the abrasive material roll dies |
| CN109789533A (en) * | 2016-09-06 | 2019-05-21 | 利德株式会社 | Grinding wheel and method for manufacturing same |
| CN110450062A (en) * | 2018-05-07 | 2019-11-15 | 蓝思科技股份有限公司 | It is a kind of for processing the polishing rod and polishing method of waist-shaped hole |
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2019
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2038782A (en) * | 1931-05-16 | 1936-04-28 | Hazel J Ellis | Abrasive element and method of making same |
| GB404150A (en) * | 1933-02-04 | 1934-01-11 | Rupert Evelyn Law Warburton | Improvements in and relating to abrasive elements for abrading tools |
| US3436871A (en) * | 1966-07-07 | 1969-04-08 | Hyprez Electrometallics Corp | Abrasive cutting tools |
| DE3332085A1 (en) * | 1983-09-06 | 1985-03-21 | Festo KG, 7300 Esslingen | Tool for roughening, or removing material by abrasion or cutting |
| CN201249410Y (en) * | 2008-08-04 | 2009-06-03 | 上海洗王摩登日用品有限公司 | Oblique grinding wheel |
| CN103659628A (en) * | 2013-12-03 | 2014-03-26 | 谢泽 | Buffing wheel based on fiber ropes containing chopped fibers and production method of buffing wheel |
| CN104723227A (en) * | 2015-03-06 | 2015-06-24 | 龙伍洋 | Machining tool enabling diamond to be arranged stably for machine tool and manufacturing method thereof |
| CN109789533A (en) * | 2016-09-06 | 2019-05-21 | 利德株式会社 | Grinding wheel and method for manufacturing same |
| CN108000735A (en) * | 2017-12-29 | 2018-05-08 | 中国有色桂林矿产地质研究院有限公司 | A kind of annular super-hard abrasive wire and preparation method thereof |
| CN110450062A (en) * | 2018-05-07 | 2019-11-15 | 蓝思科技股份有限公司 | It is a kind of for processing the polishing rod and polishing method of waist-shaped hole |
| CN108624037A (en) * | 2018-05-21 | 2018-10-09 | 潜山县福达橡胶刷业制品厂 | A kind of cloth Special grinding material silk and the abrasive material roll dies |
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| Publication number | Publication date |
|---|---|
| CN111015533B (en) | 2022-04-12 |
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