CN214723485U - Cubic boron nitride grinding disc for grinding valve body - Google Patents
Cubic boron nitride grinding disc for grinding valve body Download PDFInfo
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- CN214723485U CN214723485U CN202022965802.XU CN202022965802U CN214723485U CN 214723485 U CN214723485 U CN 214723485U CN 202022965802 U CN202022965802 U CN 202022965802U CN 214723485 U CN214723485 U CN 214723485U
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- boron nitride
- cubic boron
- valve body
- grinding disc
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Abstract
The utility model discloses a cubic boron nitride mill for grinding processing valve body relates to a mill structure for grinding apparatus. The cubic boron nitride grinding disc for grinding the valve body can remove metal quantity and is pollution-free. The utility model discloses a cubic boron nitride mill for grinding processing valve body is including polishing layer and base member, and the layer of polishing includes a plurality of ball pieces, and a plurality of ball pieces closely arrange and inlay in the base member top, and the ball piece includes cubic boron nitride granule, and the external shape of base member is the cylinder, and the middle part processing at the cylinder structure has the installation locating hole.
Description
Technical Field
The utility model relates to a grinding apparatus technical field especially relates to a cubic boron nitride mill for grinding processing valve body.
Background
The valve body is a main part in the valve, and can effectively bear medium pressure after being sealed together with the valve core and the valve seat sealing ring. The valve body can be divided into a block valve, a check valve, a safety valve and a regulating valve according to functions and purposes. The regulating valves include regulating valves, throttle valves and pressure reducing valves, and are used for regulating parameters such as pressure and flow of media. The cubic boron nitride grinding disc of the patent can be used for machining a throttling valve.
The single-side grinding machine for grinding the valve body is more in variety, advanced and laggard. Many businesses are still using legacy equipment due to differences in the capital capabilities of the business. An old-fashioned single-side grinder, the processing carrier of which is a cast iron disc with an outer diameter of 604mm, the pressure comes from a counterweight body, and the cutter for removing the metal amount is grinding paste. Although the old equipment and the processing technology can meet the processing precision, the processing efficiency is low by using the grinding paste, the surface of a workpiece is dirty and not easy to clean, the grinding paste pollutes cooling liquid after entering the cooling liquid, the polluted cooling liquid cannot be discharged at will, special equipment is needed for disposing the cooling liquid with the grinding paste, the equipment investment is large, and enterprises cannot pay.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can get rid of metal volume, pollution-free cubic boron nitride mill that is used for grinding processing valve body.
The utility model is used for grind cubic boron nitride mill of processing valve body, including the layer and the base member of polishing, the layer of polishing includes a plurality of ball pieces, and a plurality of ball pieces closely arrange and inlay in the base member top, and the ball piece includes cubic boron nitride granule, and the external shape of base member is the cylinder, and the middle part processing at the cylinder structure has the installation locating hole.
The utility model is used for grind cubic boron nitride mill of processing valve body, wherein the material of base member is in cast iron, steel, aluminium.
The utility model is used for grind cubic boron nitride mill of processing valve body, wherein the installation locating hole runs through the base member surface in vertical direction.
The utility model is used for grind cubic boron nitride mill of processing valve body, wherein the external diameter on base member surface is 604 mm.
The utility model is used for grind the cubic boron nitride mill that processes the valve body, wherein the ball piece still includes ceramic bond, and ceramic bond is used for bonding cubic boron nitride granule.
The utility model is used for grind cubic boron nitride mill of processing valve body, wherein the cross section of ball piece is the hexagon.
The utility model is used for grind the cubic boron nitride mill that processes the valve body and prior art difference lies in, the utility model is used for grind the cubic boron nitride mill installation of processing the valve body simple, can satisfy the machining precision requirement. Because the cubic boron nitride is used for processing the pill, grinding paste used by free grinding is saved, the processing environment is greatly improved, the processed workpiece is easy to clean, and the cleaning cost is saved. The cubic boron nitride grinding disc is very durable, so that the grinded substances are few, the precipitates in the cooling liquid are few, the cooling liquid can be used for a long time, the cost of the cooling liquid is saved, the environmental protection requirement is met, the comprehensive processing cost is reduced, and the economic benefit is improved.
The cubic boron nitride grinding disc for grinding the valve body of the present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a top view of a cubic boron nitride grinding disc for grinding a valve body according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
the notation in the figures means: 1-cubic boron nitride particles; 2-a ceramic binder; 3, installing a positioning hole; 4-polishing the layer; 5-matrix.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in figure 1 and figure 2, the cubic boron nitride grinding disc for grinding the valve body comprises a grinding layer 4 and a base body 5, wherein the grinding layer 4 is embedded above the base body 5.
The substrate 5 is made of metal, specifically, cast iron, steel, aluminum, or the like. The outer structure of base member 5 is processed to the cylinder, and the middle part processing of cylinder structure has installation locating hole 3, and installation locating hole 3 runs through base member 5 surface in vertical direction for main shaft and other structures of installation equipment of polishing. The outer diameter of the surface of the substrate 5 is 604mm, and the outer diameter of 604mm can be suitable for grinding various parts.
The polishing layer 4 comprises a plurality of pill pieces which are closely arranged and embedded above the base body 5.
The pill comprises cubic boron nitride particles 1 and a ceramic binder 2, and a composite structure is formed by mixing the cubic boron nitride and the ceramic binder 2. The pill pieces are processed by cold pressing through a hexagonal mould and then sintered and molded. When the finished product is finally obtained, the cross section of the pill tablet is hexagonal.
The ceramic binder 2 is used for binding the cubic boron nitride particles 1, and in some embodiments, the main components of the ceramic binder 2 can be silicon dioxide and aluminum trioxide, and the ceramic binder contains a small amount of trace elements such as magnesium oxide, sodium oxide and boron trioxide, and has the advantages of high temperature resistance, no pollution, strong holding power on cubic boron nitride and the like.
Although the cubic boron nitride abrasive in the pill is fixed in the ceramic bond 2, the cubic boron nitride is continuously edged between the cast iron disc and the end face of the workpiece through interaction, so that redundant metal can be removed, and the polishing effect is also achieved.
The grinding disc comprises the following basic steps in the machining process:
s01, preparing pellets, mixing the cubic boron nitride particles 1 with the ceramic binder 2, cold-pressing the mixture into hexagonal pellets by using a hexagonal mold, and sintering and molding the hexagonal pellets;
s02, manufacturing a base body 5, processing a metal plate into a circular base body 5 according to a drawing, processing the outer diameter of the circular base body 5 into 604mm, and arranging an installation positioning hole 3 on one side of a reference surface of the base body 5;
and S03, combining the pills with the substrate 5, respectively embedding the pills on the upper end surface of the metal substrate 5 according to the arrangement form agreed by the drawing, and finishing the pill layer by using a circular table surface grinder after drying.
When the grinding disc is used, pressure on the mounted valve body comes from the counterweight assembly, the counterweight assembly comprises a planetary wheel, a magnetic disc, a metal ring, a metal disc and a counterweight block, and the planetary wheel, the magnetic disc and the metal ring are fixedly mounted; the metal disc is arranged in the metal ring; the counterweight block is pressed on the support above the metal disc.
The valve body which can be processed by installing the grinding tool of the grinding disc of the utility model has the height of 250mm and the diameter of 14.3mm, adopts bearing steel, has the hardness of HRC60-64 and the end surface processing amount of 0.01; the grinding wheel rotating speed is 35m/s, and the workpiece speed is 1450 m/min. The surface roughness Ra0.1, the parallelism 0.03 and the planeness 0.0001 of the processed workpiece.
When the valve body is ground, the valve body is placed in a hole in the wandering star wheel, then four supporting columns of the metal disc and the valve body are pressed by equal-height balance weights, the grinding disc is started to rotate fast, the wandering star wheel rotates slowly, and the speed difference between the grinding disc and the wandering star wheel is realized, so that the workpiece allowance is removed.
The utility model is used for grind the installation of cubic boron nitride mill of processing valve body simple, and convenient operation can satisfy the machining precision requirement. The processing efficiency of the grinding disc is improved by more than 1.5 times compared with the original processing efficiency. Because the cubic boron nitride is used for processing the pill, grinding paste used by free grinding is saved, the processing environment is greatly improved, the processed workpiece is easy to clean, and the cleaning cost is saved. The cubic boron nitride grinding disc is very durable, so that the grinded substances are few, the precipitates in the cooling liquid are few, the cooling liquid can be used for a long time, the cost of the cooling liquid is saved, the environmental protection requirement is met, the comprehensive processing cost is reduced, and the economic benefit is improved.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. The utility model provides a cubic boron nitride mill for grinding processing valve body which characterized in that: the polishing device comprises a polishing layer and a base body, wherein the polishing layer comprises a plurality of pill pieces, the pill pieces are closely arranged and embedded above the base body, the pill pieces comprise cubic boron nitride particles, the outer shape of the base body is a cylinder, and an installation positioning hole is processed in the middle of the cylinder structure.
2. The cubic boron nitride grinding disc for grinding a valve body according to claim 1, wherein: the base body is made of one of cast iron, steel and aluminum.
3. The cubic boron nitride grinding disc for grinding a valve body according to claim 1, wherein: the mounting positioning hole penetrates through the surface of the base body in the vertical direction.
4. The cubic boron nitride grinding disc for grinding a valve body according to claim 1, wherein: the outer diameter of the surface of the substrate is 604 mm.
5. The cubic boron nitride grinding disc for grinding a valve body according to claim 1, wherein: the pellet also comprises a ceramic binder, and the ceramic binder is used for bonding cubic boron nitride particles.
6. The cubic boron nitride grinding disc for grinding a valve body according to claim 1 or 5, wherein: the cross section of the pill tablet is hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022965802.XU CN214723485U (en) | 2020-12-10 | 2020-12-10 | Cubic boron nitride grinding disc for grinding valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022965802.XU CN214723485U (en) | 2020-12-10 | 2020-12-10 | Cubic boron nitride grinding disc for grinding valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214723485U true CN214723485U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022965802.XU Active CN214723485U (en) | 2020-12-10 | 2020-12-10 | Cubic boron nitride grinding disc for grinding valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214723485U (en) |
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2020
- 2020-12-10 CN CN202022965802.XU patent/CN214723485U/en active Active
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