CN111015530A - Titanium-based combined material milling process milling cutter is with wheel of polishing - Google Patents
Titanium-based combined material milling process milling cutter is with wheel of polishing Download PDFInfo
- Publication number
- CN111015530A CN111015530A CN201911188586.8A CN201911188586A CN111015530A CN 111015530 A CN111015530 A CN 111015530A CN 201911188586 A CN201911188586 A CN 201911188586A CN 111015530 A CN111015530 A CN 111015530A
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- air inlet
- grinding wheel
- grinding
- chassis
- guide plate
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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
- B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
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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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a grinding wheel for milling a milling cutter by using a titanium-based composite material, which comprises a grinding wheel shell, a chassis and a grinding shaft; the grinding wheel shell is of a hollow structure, abrasive particles are uniformly arranged on the outer surface of the grinding wheel shell, and a heat-conducting metal layer is arranged on the inner surface of the grinding wheel shell; the chassis is sealed at the bottom of the grinding wheel shell, and the grinding shaft is connected with the center of the chassis; an air cavity is formed between the heat-conducting metal layer and the chassis, and an air inlet guide plate, a pressure sensor and a temperature sensor are arranged in the air cavity; one end of the air inlet guide plate is arranged on the inner surface of the chassis, the air inlet guide plate is parallel to the grinding wheel shell, and an air inlet channel is formed between the air inlet guide plate and the grinding wheel shell; the air inlet guide plate is provided with a plurality of jet holes; the chassis is provided with an air inlet and an air outlet; the air inlet is connected with low-temperature or normal-temperature gas through an air inlet pipe. The milling cutter grinding device can quickly reduce the grinding temperature, improve the grinding efficiency, improve the grinding quality of the surface of the milling cutter, reduce the abrasion loss of the grinding wheel, prolong the service life and further reduce the grinding cost.
Description
Technical Field
The invention relates to the field of machining, in particular to a grinding wheel for milling a milling cutter by using a titanium-based composite material.
Background
After milling for a period of time, the main cutting edge and the bottom edge of the milling tool used for milling generate abrasion of different degrees, which affects the surface finish, the machining size and the milling speed of the machined part, if the milling tool is continuously milled, the cutter is easy to break or even damage the size and the shape of the machined part, and in serious cases, the milling tool can cause personal injury to operators.
At present, the restoration sharpening of the worn milling cutter generally adopts two types of sharpening of a tool grinder and manual sharpening, the former is not special equipment for sharpening the milling cutter, professional tool sharpening operation is needed, the operation process is complex and tedious, and the working efficiency is low; the latter is that the milling cutter is sharpened by manual operation on a grinding machine, the technical problems of the geometric angle, the coaxiality and the like of the milling cutter are difficult to control, and the milling cutter can be scrapped by slight errors.
The invention discloses a Chinese patent application with the application number of CN200610042596.7, and the invention name is a milling cutter edge grinder, which comprises a working platform, a frame plate seat and a motor support seat, wherein the frame plate seat and the motor support seat are fixed on the working platform; the bottom of the frame plate is provided with a screw nut, and a transverse transmission screw rod matched with the screw nut is arranged on the frame plate seat; the cutting tool seat frame is connected with the frame plate through a central shaft, a sliding taper sleeve is arranged in the cutting tool seat frame, one end of the taper sleeve is provided with a milling cutter, and the other end of the taper sleeve is provided with a handle; a cross rod frame with a transverse hole arranged inside is arranged at the top of the cutting tool seat frame, a sliding cross rod penetrates through the transverse hole to be fixedly connected, and one end of the sliding cross rod is provided with a positioning indexing guide rod; the milling cutter has the advantages of reasonable structure, simple and convenient operation, high sharpening quality, prolonged service life, cost saving and efficiency improvement.
The grinding wheel is adopted for grinding, high machining precision and surface quality can be obtained, but the grinding efficiency is not high generally. The grinding efficiency depends on the grinding amount and the finishing process, the grinding precision is influenced to a great extent by the abrasion of a grinding tool (namely a grinding wheel), and the abrasion loss of the grinding wheel is determined by the abrasion resistance of a grinding material layer material of the grinding wheel. The dressing process of the grinding wheel inevitably increases the invalid working time in the grinding process, thereby reducing the grinding efficiency, and if the grinding efficiency is improved, the processing precision is generally reduced and the surface quality is generally deteriorated.
The particle reinforced titanium-based composite material has the comprehensive performance of both titanium alloy and nonmetal reinforcement, has higher specific strength and specific stiffness, excellent creep resistance, high temperature resistance and other excellent physical properties and mechanical properties compared with matrix titanium alloy, and has important and urgent strategic demands in the fields of aerospace, electronic information, semiconductor illumination, transportation and the like.
When the cutting edge of the milling cutter is polished, the polishing temperature is an important performance index of the polishing process, and the milling cutter directly reflects the generation of polishing heat in the polishing process and directly influences the polishing force, the quality of a processed surface, the abrasion of a grinding tool, the service life of the grinding tool, the processing cost and the processing efficiency. Therefore, the development of the milling technology of the particle reinforced titanium-based composite material part is also severely restricted.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides the grinding wheel for milling the milling cutter by using the titanium-based composite material, which can quickly reduce the grinding temperature, improve the grinding efficiency, improve the grinding quality of the surface of the milling cutter, reduce the abrasion loss of the grinding wheel, prolong the service life and further reduce the processing cost.
In order to solve the technical problems, the invention adopts the technical scheme that:
a grinding wheel for milling a milling cutter of a titanium-based composite material comprises a grinding wheel shell, a chassis and a grinding shaft.
The grinding wheel shell is of a hollow structure, abrasive particles are uniformly arranged on the outer surface of the grinding wheel shell, a heat-conducting metal layer is arranged on the inner surface of the grinding wheel shell, and the inner surface of the heat-conducting metal layer is wavy or zigzag; the chassis is sealed to be arranged at the bottom of the grinding wheel shell, and the grinding shaft is connected with the center of the chassis.
An air cavity is formed between the heat-conducting metal layer and the chassis, and an air inlet guide plate, a pressure sensor and a temperature sensor are arranged in the air cavity. One end of the air inlet guide plate is arranged on the inner surface of the chassis, the air inlet guide plate is parallel to the grinding wheel shell, and an air inlet channel is formed between the air inlet guide plate and the grinding wheel shell; the air inlet guide plate is provided with a plurality of jet holes.
The chassis is provided with an air inlet and an air outlet; wherein, the air inlet is positioned on the chassis in the air inlet channel and is connected with low-temperature or normal-temperature gas through an air inlet pipe.
The abrasive particles are distributed on the outer surface of the grinding wheel shell in a brazing heating mode.
The grinding wheel shell and the air inlet guide plate are both arc-shaped, and the arc length of the air inlet guide plate is 1/4-1/2 of the arc length of the grinding wheel shell.
The arc length of the air inlet guide plate is 1/3-2/3 of the arc length of the grinding wheel shell.
The outer seal of the air inlet hole is connected with an air inlet connector in a sliding mode, the position of the air inlet connector is fixed, and the air inlet pipe penetrates through the air inlet connector in a sealing mode and is led into the air inlet channel.
The air inlet pipe is provided with an air inlet valve and an air inlet flow meter, the air outlet hole is connected with an air outlet pipe, and the air outlet pipe is provided with an air outlet valve and an air outlet flow meter.
The invention has the following beneficial effects:
1. the setting of air cavity in the wheel of polishing can effectively lighten the weight of the wheel of polishing, reduces the influence of the wheel pair equipment of polishing. The applicability of the brazing abrasive grinding wheel is improved, the damping and noise reducing effects are obvious, the quality of the milled milling cutter is reliable, and the service life of the milling cutter is greatly prolonged.
2. Above-mentioned heat conduction metal level's setting, on the one hand, can increase the intensity support to the emery wheel casing, on the other hand, can adsorb the heat that will polish the production fast, prevent the high temperature that polishes the production, to the quick loss of grit, the life of the emery wheel is beaten in the extension, the cost of emery wheel has been reduced, the saving spending, economic benefits has been increased, make milling cutter when the sharpening, stable grinding power has, milling cutter processing surface high quality after the sharpening, thereby be favorable to the development of particle reinforcing titanium matrix composite part milling process technique.
3. The arrangement of the temperature sensor and the pressure sensor in the air cavity can detect the temperature and the pressure in the air cavity in real time.
Drawings
FIG. 1 is a schematic view of a grinding wheel for milling a milling cutter made of a titanium-based composite material according to the present invention.
Among them are:
10. a grinding wheel housing; 11. abrasive particles; 12. a heat-conducting metal layer;
20. a chassis; 21. an air inlet; 211. an air inlet connector; 212. an intake valve; 213. an intake air flow meter;
22. an air outlet; 221. an air outlet valve; 222. an outlet flow meter;
30. grinding the shaft;
40. an air cavity; 41. an intake air deflector; 411. an injection hole; 42. a pressure sensor; 43. a temperature sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
As shown in FIG. 1, the grinding wheel for milling and processing milling cutter of titanium-based composite material comprises a grinding wheel housing 10, a chassis 20 and a grinding shaft 30.
The grinding wheel shell is of a hollow structure, and the material of the grinding wheel shell is preferably chrome steel, such as 40Cr and the like, and the grinding wheel shell is high in strength and high-temperature resistant.
The outer surface of the grinding wheel shell is uniformly provided with abrasive particles 11, and the abrasive particles are distributed on the outer surface of the grinding wheel shell in a brazing heating mode, so that the exposed height of the abrasive is high, the abrasive is not easy to fall off, and the wear rate is low.
The inner surface of the grinding wheel shell is provided with a heat-conducting metal layer 12, and the inner surface of the heat-conducting metal layer is effectively wave-shaped or zigzag, so that the heat dissipation area can be enlarged; the heat conducting metal layer is preferably copper, a high thermal conductivity material.
The chassis is sealed to be arranged at the bottom of the grinding wheel shell, and the grinding shaft is connected with the center of the chassis.
An air cavity 40 is formed between the heat-conducting metal layer and the chassis, and an air inlet guide plate 41, a pressure sensor 42 and a temperature sensor 43 are arranged in the air cavity.
One end of the air inlet guide plate is arranged on the inner surface of the chassis, the air inlet guide plate is parallel to the grinding wheel shell, and an air inlet channel is formed between the air inlet guide plate and the grinding wheel shell; the intake guide plate is provided with a plurality of injection holes 411.
The grinding wheel shell and the air inlet guide plate are both arc-shaped, the arc length of the air inlet guide plate is 1/4-1/2 of that of the grinding wheel shell, and the preferred range is 1/3-2/3.
An air inlet 21 and an air outlet 22 are arranged on the chassis; wherein, the air inlet is positioned on the chassis in the air inlet channel and is connected with low-temperature or normal-temperature gas through an air inlet pipe. The low-temperature or normal-temperature gas is preferably air, nitrogen, or the like.
The outer seal of the air inlet hole is connected with an air inlet connector 211 in a sliding mode, and the position of the air inlet connector is fixed and is preferably connected with a grinding machine. The air inlet pipe penetrates through the air inlet connector in a sealing mode and is communicated into the air inlet channel.
The air inlet pipe is provided with an air inlet valve 212, an air inlet flow meter 213 and an air inlet pump, the air outlet hole is connected with an air outlet pipe, and the air outlet pipe is provided with an air outlet valve 221, an air outlet flow meter 222 and an air outlet pump. Wherein, the pressure of the air inlet pump and the air outlet pump can be adjusted.
A grinding method of a milling cutter for milling titanium-based composite materials comprises the following steps.
Step 1, inflating a polishing wheel air cavity: the grinding wheel is provided with a hollow grinding wheel shell, and an air cavity is formed in the grinding wheel shell; before use, the air cavity is filled with low-temperature or normal-temperature gas, and the pressure of the gas in the air cavity reaches a set pressure value. The gas with set pressure can reduce the weight of the grinding wheel, strengthen the support of the grinding wheel shell and reduce the vibration.
Step 2, grinding the cutting edge of the milling cutter: the grinding shaft drives the grinding wheel to rotate at a set rotating speed under the action of the driving device so as to grind the cutting edge of the milling cutter. The invention is suitable for high-speed grinding processing.
Step 3, polishing heat adsorption: in the step 2, friction heat is generated between the outer surface of the grinding wheel and the cutting edge of the milling cutter while the cutting edge of the milling cutter is ground; the heat conduction metal layer is arranged on the inner surface of the grinding wheel shell of the grinding wheel, and the heat conduction metal layer can quickly adsorb frictional heat, so that the ultra-high temperature of the outer surface of the grinding wheel is prevented from being formed.
Step 4, dissipating heat of the heat-conducting metal layer: on one hand, low-temperature or normal-temperature gas is sprayed in an arc shape along the inner surface of the heat-conducting metal layer, and the heat absorbed by the heat-conducting metal layer is quickly dissipated in the gas cavity; on the other hand, low-temperature or normal-temperature gas is sprayed from the arc-shaped inner wall surface of the heat-conducting metal layer to the center of the gas cavity, so that the gas in the middle of the gas cavity is cooled.
In the step 4, an arc-shaped air inlet guide plate is arranged in the air cavity adjacent to the heat-conducting metal layer, and equidistant air inlet channels are formed between the air inlet guide plate and the heat-conducting metal layer; the distance between the air inlet guide plate and the heat-conducting metal layer is not more than half of the radius of the chassis of the grinding wheel.
When the inner surface of the heat-conducting metal layer is wavy or zigzag, the air inlet guide plate and the central arc line of the heat-conducting metal layer form equal distance.
Step 5, controlling the temperature and pressure of the gas in the gas cavity: step 4, when low-temperature or normal-temperature gas is sprayed in the gas cavity, the pressure sensor and the temperature sensor detect the temperature and the pressure of the gas in the gas cavity in real time; the gas temperature and the gas pressure in the gas cavity are kept within the set range by controlling the gas inlet flow, the gas inlet pressure, the spraying time and the gas outlet flow, the gas outlet pressure and the gas discharging time, wherein the gas inlet flow is greater than the gas discharging flow, and the gas inlet pressure is greater than the set pressure of the gas cavity.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (6)
1. The utility model provides a milling process milling cutter of titanium base combined material is with grinding wheel which characterized in that: comprises a grinding wheel shell, a chassis and a grinding shaft;
the grinding wheel shell is of a hollow structure, abrasive particles are uniformly arranged on the outer surface of the grinding wheel shell, a heat-conducting metal layer is arranged on the inner surface of the grinding wheel shell, and the inner surface of the heat-conducting metal layer is wavy or zigzag; the chassis is hermetically arranged at the bottom of the grinding wheel shell, and the grinding shaft is connected with the center of the chassis;
an air cavity is formed between the heat-conducting metal layer and the chassis, and an air inlet guide plate, a pressure sensor and a temperature sensor are arranged in the air cavity; one end of the air inlet guide plate is arranged on the inner surface of the chassis, the air inlet guide plate is parallel to the grinding wheel shell, and an air inlet channel is formed between the air inlet guide plate and the grinding wheel shell; the air inlet guide plate is provided with a plurality of jet holes;
the chassis is provided with an air inlet and an air outlet; wherein, the air inlet is positioned on the chassis in the air inlet channel and is connected with low-temperature or normal-temperature gas through an air inlet pipe.
2. The grinding wheel for milling cutter of titanium-based composite material as claimed in claim 1, wherein: the abrasive particles are distributed on the outer surface of the grinding wheel shell in a brazing heating mode.
3. The grinding wheel for milling cutter of titanium-based composite material as claimed in claim 1, wherein: the grinding wheel shell and the air inlet guide plate are both arc-shaped, and the arc length of the air inlet guide plate is 1/4-1/2 of the arc length of the grinding wheel shell.
4. The grinding wheel for milling cutter of titanium-based composite material as claimed in claim 3, wherein: the arc length of the air inlet guide plate is 1/3-2/3 of the arc length of the grinding wheel shell.
5. The grinding wheel for milling cutter of titanium-based composite material as claimed in claim 1, wherein: the outer seal of the air inlet hole is connected with an air inlet connector in a sliding mode, the position of the air inlet connector is fixed, and the air inlet pipe penetrates through the air inlet connector in a sealing mode and is led into the air inlet channel.
6. The grinding wheel for milling cutter of titanium-based composite material according to claim 1 or 5, wherein: the air inlet pipe is provided with an air inlet valve and an air inlet flow meter, the air outlet hole is connected with an air outlet pipe, and the air outlet pipe is provided with an air outlet valve and an air outlet flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911188586.8A CN111015530A (en) | 2019-11-28 | 2019-11-28 | Titanium-based combined material milling process milling cutter is with wheel of polishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911188586.8A CN111015530A (en) | 2019-11-28 | 2019-11-28 | Titanium-based combined material milling process milling cutter is with wheel of polishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111015530A true CN111015530A (en) | 2020-04-17 |
Family
ID=70202976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911188586.8A Pending CN111015530A (en) | 2019-11-28 | 2019-11-28 | Titanium-based combined material milling process milling cutter is with wheel of polishing |
Country Status (1)
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| CN (1) | CN111015530A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001066304A1 (en) * | 2000-03-09 | 2001-09-13 | C.M.E. Blasting & Mining Equipment Ltd. | Mass reduced grinding cup |
| CN102528676A (en) * | 2012-01-17 | 2012-07-04 | 桂林创源金刚石有限公司 | Internal cooling type grinding wheel for external cooling type grinding machine |
| CN102794716A (en) * | 2012-08-16 | 2012-11-28 | 厦门大学 | Flexible grinding and polishing compound arc sand wheel |
| CN104802100A (en) * | 2015-05-13 | 2015-07-29 | 厦门致力金刚石科技股份有限公司 | Brazed diamond flap wheel |
| EP3437800A1 (en) * | 2017-07-31 | 2019-02-06 | ABREX-System S.R.L. | Supporting device for abrasive elements |
| CN109571292A (en) * | 2018-12-29 | 2019-04-05 | 河南工业大学 | A kind of novel high thermal conductivity phase-change thermal storage super-abrasive grinding wheel and preparation method thereof |
| CN209095144U (en) * | 2018-11-21 | 2019-07-12 | 盐城盛鼎机电工业有限公司 | A kind of wear-resisting high temperature abrasive machine |
-
2019
- 2019-11-28 CN CN201911188586.8A patent/CN111015530A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001066304A1 (en) * | 2000-03-09 | 2001-09-13 | C.M.E. Blasting & Mining Equipment Ltd. | Mass reduced grinding cup |
| CN102528676A (en) * | 2012-01-17 | 2012-07-04 | 桂林创源金刚石有限公司 | Internal cooling type grinding wheel for external cooling type grinding machine |
| CN102794716A (en) * | 2012-08-16 | 2012-11-28 | 厦门大学 | Flexible grinding and polishing compound arc sand wheel |
| CN104802100A (en) * | 2015-05-13 | 2015-07-29 | 厦门致力金刚石科技股份有限公司 | Brazed diamond flap wheel |
| EP3437800A1 (en) * | 2017-07-31 | 2019-02-06 | ABREX-System S.R.L. | Supporting device for abrasive elements |
| CN209095144U (en) * | 2018-11-21 | 2019-07-12 | 盐城盛鼎机电工业有限公司 | A kind of wear-resisting high temperature abrasive machine |
| CN109571292A (en) * | 2018-12-29 | 2019-04-05 | 河南工业大学 | A kind of novel high thermal conductivity phase-change thermal storage super-abrasive grinding wheel and preparation method thereof |
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Effective date of abandoning: 20210730 |