CN108747633B - Shaft end grinding method and grinding tool - Google Patents
Shaft end grinding method and grinding tool Download PDFInfo
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- CN108747633B CN108747633B CN201810799660.9A CN201810799660A CN108747633B CN 108747633 B CN108747633 B CN 108747633B CN 201810799660 A CN201810799660 A CN 201810799660A CN 108747633 B CN108747633 B CN 108747633B
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- grinding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D99/00—Subject matter not provided for in other groups of this subclass
- B24D99/005—Segments of abrasive wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The application discloses a shaft end grinding method and a grinding tool, wherein the shaft end grinding method is to arrange a grinding sleeve with a plurality of elastic grinding blocks, the plurality of elastic grinding blocks are connected to the grinding sleeve, and one ends of the plurality of elastic grinding blocks are inserted into the interior of the grinding sleeve through the grinding sleeve; when the grinding is carried out, the shaft end part sprayed with the coating stretches into the grinding sleeve, so that a plurality of elastic grinding blocks are elastically contacted with the coating on the shaft end part, the grinding sleeve is rotated, and the coating on the shaft end part is elastically ground by the plurality of elastic grinding blocks on the grinding sleeve. The application can grind the end part of the shaft after coating spraying, ensures the cylindricity of the end part of the shaft after grinding, is very convenient and quick to operate, reduces the working strength and improves the working efficiency.
Description
Technical Field
The application relates to a grinding method and a grinding tool, in particular to a shaft end grinding method and a grinding tool.
Background
When the railway vehicle passes through a curve and a turnout or is parked on a curve with ultrahigh setting at high speed, the rolling increase is obvious, one side wheel is heavily unloaded, and even the overturning instability condition occurs when strong transverse wind is encountered, so that the safety is reduced. It is necessary to increase the roll stiffness of the vehicle to limit the roll angle thereof, but not to affect the roll, yaw, roll, telescopic and click vibration characteristics of the vehicle.
Currently, when servicing certain anti-roll torsion bar arrangements for rail vehicles, it has been found that the end of the torsion bar shaft is rusted, many of which exceed servicing standards. The high rejection rate of the anti-rolling torsion bar device leads to high maintenance cost of the product, and the anti-rolling torsion bar device on certain railway vehicles is developed domestically on the basis of foreign products at present, most of the structures of the anti-rolling torsion bar device are in a prototype structure abroad, the improvement difficulty is high, in addition, the annual production value of the anti-rolling torsion bar device on certain railway vehicles is about 1 hundred million yuan in recent years, the production value scale is large, and particularly, the product has successively reached the maintenance period, and the maintenance market scale is also quite considerable.
When the torsion bar shaft is reworked after being rusted, the technology of surface spraying coating is adopted to repair and perfect the local part of the product. However, since the thickness of the coating layer is easily unevenly distributed at the end of the torsion bar shaft by the spray coating process, the cylindricity of the end of the torsion bar shaft cannot be ensured. In the prior art, the subsequent polishing processing is carried out by utilizing a sand paper local polishing mode, but the cylindricity of the end part of the torsion bar shaft cannot be well controlled in a reasonable range, the working strength is high, and the working efficiency is low.
After the search, patent documents identical or similar to the present application have not been searched.
In conclusion, how to design a shaft end grinding method and a grinding tool to grind the shaft end after coating spraying, ensure cylindricity of the shaft end after grinding, and facilitate and fast operation, reduce working strength and improve working efficiency is a technical problem which needs to be solved urgently.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides the shaft end grinding method and the grinding tool, which can grind the shaft end after the coating is sprayed, ensure the cylindricity of the shaft end after the grinding, are very convenient and quick to operate, reduce the working intensity and improve the working efficiency.
In order to solve the technical problems, the application adopts the following technical scheme: a shaft end grinding method is characterized in that a grinding sleeve with a plurality of elastic grinding blocks is arranged, the plurality of elastic grinding blocks are connected to the grinding sleeve, and one ends of the plurality of elastic grinding blocks are inserted into the interior of the grinding sleeve through the grinding sleeve; when the grinding is carried out, the shaft end part sprayed with the coating stretches into the grinding sleeve, so that a plurality of elastic grinding blocks are elastically contacted with the coating on the shaft end part, the grinding sleeve is rotated, and the coating on the shaft end part is elastically ground by the plurality of elastic grinding blocks on the grinding sleeve.
Preferably, when grinding is performed, the grinding sleeve is rotated, the grinding amount at the thick coating layer is increased by using a larger grinding force generated at the thick coating layer on the shaft end part of the elastic grinding block, and the grinding amount at the thin coating layer is reduced by using a smaller grinding force generated at the thin coating layer on the shaft end part of the elastic grinding block, so that the coating layer on the shaft end part of the elastic grinding block is used for elastic grinding.
Preferably, the elastic grinding block comprises a grinding block and an elastic piece, a plurality of limiting grooves are formed in the grinding sleeve, and the elastic piece is a first spring;
the grinding steps are as follows:
1) Before grinding, a plurality of grinding blocks are respectively placed in a plurality of limiting grooves, one end of each grinding block can extend into the grinding sleeve through the limiting grooves, and the other end of each grinding block can be limited through the limiting grooves; then the first spring is wound on the outer part of the grinding sleeve provided with the plurality of grinding blocks, so that the first spring is contacted with the other ends of the plurality of grinding blocks to elastically compress the plurality of grinding blocks in the plurality of limiting grooves, and one ends of the plurality of grinding blocks extend into the inner part of the grinding sleeve;
2) Pulling the other ends of the plurality of grinding blocks so that one ends of the plurality of grinding blocks are in a contracted state from the interior of the grinding sleeve;
3) The shaft end part sprayed with the coating is inserted into the interior of the grinding sleeve, the other ends of the grinding blocks are loosened, one ends of the grinding blocks stretch into the interior of the grinding sleeve again under the action of the restoring force of the first spring to contact the coating on the shaft end part, and the grinding sleeve is rotated to grind.
Preferably, the elastic grinding block comprises a grinding block and an elastic piece, a plurality of limiting grooves are formed in the grinding sleeve, and the elastic piece is a first spring;
the grinding steps are as follows:
s1, firstly, extending the shaft end part sprayed with the coating into the interior of a grinding sleeve;
s2, placing a plurality of grinding blocks into a plurality of limit grooves;
s3, winding the first spring on the outer part of the grinding sleeve provided with the grinding blocks, elastically pressing the grinding blocks into the limiting grooves by utilizing the first spring to contact with the other ends of the grinding blocks, enabling one ends of the grinding blocks to extend into the inner part of the grinding sleeve to contact with the coating on the end part of the shaft, and rotating the grinding sleeve to grind.
The application also discloses a grinding tool which comprises a grinding sleeve and a plurality of elastic grinding blocks arranged on the grinding sleeve, wherein the plurality of elastic grinding blocks are connected to the grinding sleeve, and one ends of the plurality of elastic grinding blocks extend into the grinding sleeve through the grinding sleeve to form a grinding part.
Preferably, the elastic grinding block comprises a grinding block and an elastic piece, a plurality of limiting grooves are formed in the grinding sleeve, and the plurality of grinding blocks are respectively placed in the plurality of limiting grooves; the limiting groove enables one end of the grinding block to extend into the grinding sleeve, the limiting groove can limit the other end of the grinding block, the elastic piece is contacted with the other end of the grinding block to elastically compress the grinding block in the limiting groove, one end of the grinding block extends into the interior of the grinding sleeve, and therefore the grinding blocks are elastically connected to the grinding sleeve.
Preferably, along the radial direction of the grinding sleeve, the cross section of the limiting groove is trapezoid, the upper bottom edge of the trapezoid limiting groove is close to one side of the central axis of the grinding sleeve, and the lower bottom edge of the trapezoid limiting groove is far away from one side of the central axis of the grinding sleeve; along the radial direction of the grinding sleeve, the section of the grinding block is also arranged in a trapezoid shape, the upper bottom edge of the trapezoid grinding block is close to one side of the central axis of the grinding sleeve, and the lower bottom edge of the trapezoid grinding block is far away from one side of the central axis of the grinding sleeve;
the upper bottom edge of the trapezoid grinding block is smaller than the upper bottom edge of the trapezoid limiting groove, and the lower bottom edge of the trapezoid grinding block is larger than the upper bottom edge of the trapezoid limiting groove.
Preferably, an arc-shaped inner groove is formed in the upper bottom edge of the trapezoid grinding block.
Preferably, the elastic member is a first spring, and the first spring is wound on the outer part of the grinding sleeve provided with the grinding blocks, so that the first spring is contacted with the other ends of the grinding blocks to elastically compress the grinding blocks in the limiting grooves, and one ends of the grinding blocks extend into the inner part of the grinding sleeve.
Preferably, the grinding sleeve comprises an outer sleeve and an inner sleeve arranged in the outer sleeve, the outer sleeve and the inner sleeve are fixedly connected together, and a plurality of limiting grooves are arranged on the inner sleeve; the elastic piece is a plurality of second springs, the second springs are respectively arranged between the outer sleeve and the inner sleeve, one ends of the second springs are respectively contacted with the inner wall of the outer sleeve, and the other ends of the second springs are respectively contacted with the other ends of the grinding blocks, so that the second springs are utilized to elastically compress the grinding blocks in the limiting grooves, and one ends of the grinding blocks extend into the grinding sleeve.
The application has the beneficial effects that: when the application is used for grinding, the grinding amount of each part of the coating is automatically adjusted by utilizing different reaction forces of the elastic grinding blocks received by the coating with uneven distribution, so that the coating is elastically ground, the cylindricity of the end part of the shaft after grinding is ensured, the operation is very convenient and quick, the working intensity is reduced, and the working efficiency is improved. The limit groove is arranged to limit the grinding block, so that one end of the grinding block is ensured to extend into the grinding sleeve, but not all the end of the grinding block falls into the grinding sleeve, and smooth operation of the grinding tool is ensured. The arc-shaped inner groove is formed in the upper bottom edge of the grinding block, so that the contact area between the grinding block and the coating can be increased, and the grinding quality is further improved.
Drawings
FIG. 1 is a schematic view of a partial structure of a shaft end portion after coating by spraying;
fig. 2 is a schematic diagram of a front view structure of a grinding tool in embodiment 1 of the present application;
fig. 3 is a schematic perspective view of a grinding tool in embodiment 1 of the present application;
fig. 4 is a schematic diagram of the elastic grinding by using the elastic grinding block in embodiment 1 of the present application;
FIG. 5 is a schematic view showing a radial partial cross-sectional structure of a grinding sleeve located at a limit groove in embodiment 1 of the present application;
FIG. 6 is a schematic front view of the grinding block according to embodiment 3 of the present application;
fig. 7 is a schematic diagram of a front view structure of a grinding tool in embodiment 4 of the present application;
in the figure: 1. the end part of the shaft, 2, a coating, 3, an elastic grinding block, 311, a grinding block, 312, an elastic piece, 4, a grinding sleeve, 411, an outer sleeve, 412, an inner sleeve, 5, a limit groove and 6, an arc-shaped inner groove.
Detailed Description
The technical scheme of the application is further elaborated below with reference to the drawings and specific embodiments.
When the spraying repair is carried out, the size of the shaft end part after spraying is larger than the required size, and then the shaft end part sprayed with the coating is polished by using a grinding tool, so that the size of the shaft end part reaches the required size. However, as shown in fig. 1, after the shaft end portion 1 is sprayed, the thickness of the coating layer 2 attached to the shaft end portion 1 is unevenly distributed, as shown in the drawing, the a position is located at the coating layer thickness and the B position is located at the coating layer thin position, in which case it is difficult to ensure the cylindricity of the shaft end portion if it is polished only by a general grinding tool. Accordingly, the present application solves the above-described problems by the following means.
Example 1: as shown in fig. 2 to 4, a shaft end grinding method is provided which is a grinding sleeve 4 with a plurality of elastic grinding blocks 3, the plurality of elastic grinding blocks 3 are connected to the grinding sleeve 4 and one ends of the plurality of elastic grinding blocks 3 all extend into the interior of the grinding sleeve 4 through the grinding sleeve 4 to form a grinding portion; during grinding, the shaft end sprayed with the coating is inserted into the grinding sleeve so that the plurality of elastic grinding blocks 3 are elastically contacted with the coating 2 on the shaft end 1, the grinding sleeve 4 is rotated, and the coating 2 on the shaft end 1 is elastically ground by the plurality of elastic grinding blocks 3 on the grinding sleeve 4. Before the axle head inserts the grinding sleeve, each elastic grinding block is in the normality, after the axle head inserts the grinding sleeve, because the elastic grinding block is elasticity, consequently, receive the extrusion of coating and can make each elastic grinding block be in precompaction state, at this moment, the reaction force of the elastic grinding block that receives at uneven coating department also is different, when carrying out the grinding, the grinding volume everywhere of coating is adjusted automatically to the different reaction forces that utilize the elastic grinding block that receives at uneven coating department, thereby carry out the elastic grinding to the coating, guaranteed the cylindricity of grinding back axle head and operating very convenient and fast, working strength has been reduced, work efficiency has been improved.
As shown in fig. 4, when grinding is performed, the grinding sleeve is rotated, the grinding amount at the thick coating layer (a) on the shaft end is increased by using a larger grinding force generated at the thick coating layer (a) and the grinding amount at the thin coating layer (B) on the shaft end is reduced by using a smaller grinding force generated at the thin coating layer (B) on the shaft end, so that the coating layer on the shaft end is elastically ground by using a plurality of elastic grinding blocks on the grinding sleeve.
As shown in fig. 2, 3 and 5, the elastic grinding block 3 comprises a grinding block 311 and an elastic piece 312, a plurality of limit grooves 5 are formed in the grinding sleeve 4, and the elastic piece 312 is a spring I;
the grinding steps are as follows:
1) Before grinding, a plurality of grinding blocks 311 are respectively placed in a plurality of limiting grooves 5, the limiting grooves 5 enable one end (namely a grinding part) of each grinding block 311 to extend into the grinding sleeve 4, and the limiting grooves 5 can limit the other end of each grinding block 311, so that all the grinding blocks 311 are prevented from falling into the grinding sleeve 4; then the first spring is wound on the outer part of the grinding sleeve 4 provided with the plurality of grinding blocks 311, so that the first spring is contacted with the other ends of the plurality of grinding blocks 311 to elastically compress the plurality of grinding blocks 311 in the plurality of limit grooves 5, and one ends (namely grinding parts) of the plurality of grinding blocks 311 extend into the inner part of the grinding sleeve 4;
2) Pulling the other ends of the grinding blocks 311, so that one ends of the grinding blocks 311 retract a certain distance from the inside of the grinding sleeve to be in a contracted state, so that the shaft end with the coating is mainly avoided, and the shaft end is convenient to insert;
3) The coated shaft end 1 is inserted into the grinding sleeve 4, the other ends of the grinding blocks 311 are loosened, one ends of the grinding blocks 311 are stretched into the grinding sleeve 4 again to contact with the coating 2 on the shaft end 1 under the action of the restoring force of the first spring, and the grinding sleeve 4 is rotated to grind.
When the grinding is carried out, the grinding sleeve 4 is controlled to rotate for grinding, and meanwhile, the grinding sleeve 4 is controlled to move back and forth along the axial direction of the shaft end for grinding, so that the cylindricity of the shaft end after grinding can be further ensured.
As shown in fig. 2 to 4, the present embodiment also discloses a grinding tool, which includes a grinding sleeve 4 and a plurality of elastic grinding blocks 3 disposed on the grinding sleeve 4, wherein the plurality of elastic grinding blocks 3 are connected to the grinding sleeve 4, and one ends of the plurality of elastic grinding blocks 3 extend into the interior of the grinding sleeve 4 through the grinding sleeve 4.
As shown in fig. 2, 3 and 5, the elastic grinding block 3 comprises a grinding block 311 and an elastic piece 312, a plurality of limiting grooves 5 are formed in the grinding sleeve 4, and the plurality of grinding blocks 311 are respectively placed in the plurality of limiting grooves 5; the limiting groove 5 enables one end of the grinding block 311 to extend into the grinding sleeve 4, and the limiting groove 5 can limit the other end of the grinding block 311, the grinding block 311 is elastically pressed in the limiting groove 5 by contacting the elastic piece 312 with the other end of the grinding block 311, so that one end of the grinding block 311 extends into the interior of the grinding sleeve 4, and a plurality of grinding blocks 311 are elastically connected to the grinding sleeve 4. In this embodiment, the length direction of the grinding block 311 is parallel to the axial direction of the grinding sleeve 4, and the plurality of limiting grooves 5 are distributed on the grinding sleeve 4 along the circumferential direction of the grinding sleeve 4 and in the plurality of limiting grooves 5, and the limiting grooves 5 opposite to each other are symmetrically arranged about the central axis of the grinding sleeve 4, so that dynamic balance during rotary grinding of the grinding sleeve can be ensured, and grinding quality is improved. In this embodiment, the grinding block 311 is provided with 4 blocks, and the grinding sleeve 4 can be rotated at a low speed by an electric drill.
As shown in fig. 5, along the radial direction of the grinding sleeve, the cross section of the limiting groove 5 is trapezoid, the upper bottom edge of the trapezoid limiting groove 5 is close to one side of the central axis of the grinding sleeve 4, and the lower bottom edge of the trapezoid limiting groove 5 is far away from one side of the central axis of the grinding sleeve 4; along the radial direction of the grinding sleeve, the section of the grinding block 311 is also arranged in a trapezoid shape, the upper bottom edge of the trapezoid grinding block 311 is close to one side of the central axis of the grinding sleeve 4, and the lower bottom edge 4 of the trapezoid grinding block 311 is far away from one side of the central axis of the grinding sleeve;
the upper bottom edge L1 of the trapezoid grinding block 311 is smaller than the upper bottom edge L2 of the trapezoid limiting groove 5, and the lower bottom edge L3 of the trapezoid grinding block 311 is larger than the upper bottom edge L2 of the trapezoid limiting groove 5. The setting can carry out spacing to the grinding piece like this, guarantees that the one end of grinding piece stretches into in the grinding sleeve, but can not all fall into in the grinding sleeve to guaranteed the smooth going on of grinding frock.
As shown in fig. 2 and 3, the elastic member 312 is a first spring, which is wound around the outside of the grinding sleeve 4 in which the grinding blocks are placed, and then the head and tail of the first spring are connected, so that the grinding blocks 311 are elastically pressed into the limiting grooves 5 by contacting the other ends of the grinding blocks 311 with the first spring, and one ends of the grinding blocks 311 extend into the inside of the grinding sleeve 4. In this embodiment, the head, tail and middle of the grinding block are respectively bound by the spring one, so that the grinding quality can be further improved.
Example 2: the difference from example 1 is that: the grinding steps are as follows:
s1, firstly, extending the shaft end part sprayed with the coating into the interior of a grinding sleeve;
s2, placing a plurality of grinding blocks into a plurality of limit grooves;
s3, winding the first spring on the outer part of the grinding sleeve provided with the grinding blocks, elastically pressing the grinding blocks into the limiting grooves by utilizing the first spring to contact with the other ends of the grinding blocks, enabling one ends of the grinding blocks to extend into the inner part of the grinding sleeve to contact with the coating on the end part of the shaft, and rotating the grinding sleeve to grind.
Example 3: as shown in fig. 6, the difference compared with embodiment 1 is that: an arc-shaped inner groove 6 is formed on the upper bottom edge of the trapezoid grinding block 311. This increases the contact area with the coating and thus further improves the grinding quality.
Example 4: as shown in fig. 7, the difference from example 1 is that: the grinding sleeve 4 comprises an outer sleeve 411 and an inner sleeve 412 arranged in the outer sleeve 411, the outer sleeve 411 and the inner sleeve 412 are fixedly connected together, and a plurality of limit grooves 5 are arranged on the inner sleeve 412; the elastic member 312 is a plurality of second springs, the second springs are respectively disposed between the outer sleeve 411 and the inner sleeve 412, one ends of the second springs are respectively contacted with the inner wall of the outer sleeve 411, and the other ends of the second springs are respectively contacted with the other ends of the grinding blocks 311, so that the second springs are utilized to elastically compress the grinding blocks 311 in the limiting grooves 5, and one ends of the grinding blocks extend into the grinding sleeve 4. In the embodiment, three second springs are arranged on each grinding block and are distributed at the head, tail and middle of the grinding block respectively.
In summary, when the grinding is performed, the grinding amount of each part of the coating is automatically adjusted by utilizing different reaction forces of the elastic grinding blocks received by the coating with uneven distribution, so that the coating is elastically ground, the cylindricity of the end part of the shaft after grinding is ensured, the operation is very convenient and quick, the working strength is reduced, and the working efficiency is improved. The limit groove is arranged to limit the grinding block, so that one end of the grinding block is ensured to extend into the grinding sleeve, but not all the end of the grinding block falls into the grinding sleeve, and smooth operation of the grinding tool is ensured. The arc-shaped inner groove is formed in the upper bottom edge of the grinding block, so that the contact area between the grinding block and the coating can be increased, and the grinding quality is further improved.
The term "plurality" as used in this embodiment means the number of "two or more". The above embodiments are only for illustrating the present application, not for limiting the present application, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present application, so that all equivalent technical solutions shall fall within the scope of the present application, which is defined by the claims.
Claims (5)
1. A shaft end grinding method is characterized in that: the grinding sleeve is provided with a plurality of elastic grinding blocks, the plurality of elastic grinding blocks are connected to the grinding sleeve, and one ends of the plurality of elastic grinding blocks penetrate through the grinding sleeve and are inserted into the grinding sleeve; when grinding is carried out, the shaft end part sprayed with the coating is extended into the grinding sleeve, so that a plurality of elastic grinding blocks are elastically contacted with the coating on the shaft end part, the grinding sleeve is rotated, and the coating on the shaft end part is elastically ground by the plurality of elastic grinding blocks on the grinding sleeve;
when grinding is carried out, the grinding sleeve is rotated, the grinding amount at the thick coating position on the shaft end part is increased by using a larger grinding force generated at the thick coating position on the shaft end part of the elastic grinding block, and the grinding amount at the thin coating position on the shaft end part is reduced by using a smaller grinding force generated at the thin coating position on the shaft end part of the elastic grinding block, so that the coating on the shaft end part is elastically ground by using a plurality of elastic grinding blocks on the grinding sleeve;
the elastic grinding block comprises a grinding block and an elastic piece, a plurality of limiting grooves are formed in the grinding sleeve, and the elastic piece is a first spring;
the grinding steps are as follows:
1) Before grinding, a plurality of grinding blocks are respectively placed in a plurality of limiting grooves, one end of each grinding block can extend into the grinding sleeve through the limiting grooves, and the other end of each grinding block can be limited through the limiting grooves; then the first spring is wound on the outer part of the grinding sleeve provided with the plurality of grinding blocks, so that the first spring is contacted with the other ends of the plurality of grinding blocks to elastically compress the plurality of grinding blocks in the plurality of limiting grooves, and one ends of the plurality of grinding blocks extend into the inner part of the grinding sleeve;
2) Pulling the other ends of the plurality of grinding blocks so that one ends of the plurality of grinding blocks are in a contracted state from the interior of the grinding sleeve;
3) The shaft end part sprayed with the coating is inserted into the interior of the grinding sleeve, the other ends of the grinding blocks are loosened, one ends of the grinding blocks stretch into the interior of the grinding sleeve again under the action of the restoring force of the first spring to contact the coating on the shaft end part, and the grinding sleeve is rotated to grind.
2. The utility model provides a grinding frock which characterized in that: the grinding sleeve comprises a grinding sleeve and a plurality of elastic grinding blocks arranged on the grinding sleeve, wherein the plurality of elastic grinding blocks are connected to the grinding sleeve, and one ends of the plurality of elastic grinding blocks penetrate through the grinding sleeve and extend into the interior of the grinding sleeve to form a grinding part;
the elastic grinding block comprises a grinding block and an elastic piece, a plurality of limiting grooves are formed in the grinding sleeve, and the plurality of grinding blocks are respectively placed in the plurality of limiting grooves; the limiting groove enables one end of the grinding block to extend into the grinding sleeve, the limiting groove can limit the other end of the grinding block, the elastic piece is contacted with the other end of the grinding block to elastically compress the grinding block in the limiting groove, and one end of the grinding block extends into the interior of the grinding sleeve, so that the grinding blocks are elastically connected to the grinding sleeve;
along the radial direction of the grinding sleeve, the cross section of the limiting groove is trapezoid, the upper bottom edge of the trapezoid limiting groove is close to one side of the central axis of the grinding sleeve, and the lower bottom edge of the trapezoid limiting groove is far away from one side of the central axis of the grinding sleeve; along the radial direction of the grinding sleeve, the section of the grinding block is also arranged in a trapezoid shape, the upper bottom edge of the trapezoid grinding block is close to one side of the central axis of the grinding sleeve, and the lower bottom edge of the trapezoid grinding block is far away from one side of the central axis of the grinding sleeve;
the upper bottom edge of the trapezoid grinding block is smaller than the upper bottom edge of the trapezoid limiting groove, and the lower bottom edge of the trapezoid grinding block is larger than the upper bottom edge of the trapezoid limiting groove.
3. The grinding tool according to claim 2, wherein: an arc-shaped inner groove is formed in the upper bottom edge of the trapezoid grinding block.
4. A grinding tool according to claim 2 or 3, wherein: the elastic piece is a spring I, the spring I is wound on the outer part of the grinding sleeve provided with the grinding blocks, and accordingly the spring I is used for contacting with the other ends of the grinding blocks to elastically compress the grinding blocks in the limiting grooves, and one ends of the grinding blocks extend into the inner part of the grinding sleeve.
5. A grinding tool according to any one of claims 2 or 3, wherein: the grinding sleeve comprises an outer sleeve and an inner sleeve arranged in the outer sleeve, the outer sleeve and the inner sleeve are fixedly connected together, and a plurality of limiting grooves are formed in the inner sleeve; the elastic piece is a plurality of second springs, the second springs are respectively arranged between the outer sleeve and the inner sleeve, one ends of the second springs are respectively contacted with the inner wall of the outer sleeve, and the other ends of the second springs are respectively contacted with the other ends of the grinding blocks, so that the second springs are utilized to elastically compress the grinding blocks in the limiting grooves, and one ends of the grinding blocks extend into the grinding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799660.9A CN108747633B (en) | 2018-07-20 | 2018-07-20 | Shaft end grinding method and grinding tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799660.9A CN108747633B (en) | 2018-07-20 | 2018-07-20 | Shaft end grinding method and grinding tool |
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| CN108747633A CN108747633A (en) | 2018-11-06 |
| CN108747633B true CN108747633B (en) | 2023-09-26 |
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| CN110394697B (en) * | 2019-07-26 | 2021-03-02 | 台州正铭智能家居科技有限公司 | Steel pipe equipment of polishing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08215999A (en) * | 1995-02-10 | 1996-08-27 | Mitsubishi Materials Corp | Polishing device for stepped shaft member |
| JP2001113453A (en) * | 1999-10-15 | 2001-04-24 | Sekisui Jushi Co Ltd | Polishing device |
| US6758145B1 (en) * | 2003-05-05 | 2004-07-06 | Henry Hefter | Track cleaner for model railroads |
| CN106239281A (en) * | 2016-08-23 | 2016-12-21 | 朱林辉 | A kind of bearing special outer surface processing means |
| CN206605361U (en) * | 2017-03-07 | 2017-11-03 | 江苏百安科技有限公司 | A kind of special-shaped piston outer wall automatic polishing device |
| CN208451215U (en) * | 2018-07-20 | 2019-02-01 | 株洲时代新材料科技股份有限公司 | A kind of shaft end portion grinding fixture |
-
2018
- 2018-07-20 CN CN201810799660.9A patent/CN108747633B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08215999A (en) * | 1995-02-10 | 1996-08-27 | Mitsubishi Materials Corp | Polishing device for stepped shaft member |
| JP2001113453A (en) * | 1999-10-15 | 2001-04-24 | Sekisui Jushi Co Ltd | Polishing device |
| US6758145B1 (en) * | 2003-05-05 | 2004-07-06 | Henry Hefter | Track cleaner for model railroads |
| CN106239281A (en) * | 2016-08-23 | 2016-12-21 | 朱林辉 | A kind of bearing special outer surface processing means |
| CN206605361U (en) * | 2017-03-07 | 2017-11-03 | 江苏百安科技有限公司 | A kind of special-shaped piston outer wall automatic polishing device |
| CN208451215U (en) * | 2018-07-20 | 2019-02-01 | 株洲时代新材料科技股份有限公司 | A kind of shaft end portion grinding fixture |
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| CN108747633A (en) | 2018-11-06 |
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