CN112222452A - Deep hole machining method - Google Patents
Deep hole machining method Download PDFInfo
- Publication number
- CN112222452A CN112222452A CN202011127711.7A CN202011127711A CN112222452A CN 112222452 A CN112222452 A CN 112222452A CN 202011127711 A CN202011127711 A CN 202011127711A CN 112222452 A CN112222452 A CN 112222452A
- Authority
- CN
- China
- Prior art keywords
- deep
- cutting fluid
- heat exchange
- pressure gas
- hole drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003754 machining Methods 0.000 title abstract description 12
- 239000002173 cutting fluid Substances 0.000 claims abstract description 30
- 238000003672 processing method Methods 0.000 claims abstract description 7
- 238000001704 evaporation Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims 9
- 238000005299 abrasion Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005057 refrigeration Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a processing method, in particular to a deep hole processing method, wherein low-temperature cutting fluid and low-temperature high-pressure gas are introduced into a hole in a drill bit, the high-pressure gas is added intermittently, and the temperature of the low-temperature cutting fluid and the temperature of the low-temperature high-pressure gas are both 5-5 ℃. The deep hole machining method provided by the invention can reduce the abrasion of the cutter, has a good chip breaking effect, and can improve the smoothness of the inner surface of the hole.
Description
Technical Field
The invention relates to a processing method, in particular to a deep hole processing method.
Background
The existing deep hole machining is commonly used by a BTA system and a double-pipe spraying and sucking system, but the deep hole machining system has the conditions of fast tool abrasion, poor chip breaking and poor surface quality.
Disclosure of Invention
In order to solve the problems, the invention provides a deep hole machining method which can reduce the abrasion of a cutter, has good chip breaking effect and can improve the finish degree of the inner surface of a hole, and the specific technical scheme is as follows:
a deep hole processing method is characterized in that low-temperature cutting fluid and low-temperature high-pressure gas are introduced into a hole in a drill bit, the high-pressure gas is added intermittently, and the temperature of the low-temperature cutting fluid and the temperature of the low-temperature high-pressure gas are both 5 to-5 ℃.
Through adopting above-mentioned technical scheme, solve the condition such as cutter wearing and tearing, chip-breaking difference through improving the structure and the processing mode of deep-hole drill bit among the prior art more. The technology is slowly advancing. The present invention solves the above problems by reducing the temperature of the machining zone, i.e. the temperature of the cutting head, the workpiece and the chips, especially the temperature of the chips is instantaneously reduced, so that the chips are hardened and more easily broken. And the high-pressure gas that the clearance lets in can form high-pressure bubble, and the high-pressure bubble enters into the contact surface of drill bit and work piece and easily forms the explosion effect, and the shock wave that produces in the twinkling of an eye can effectively get the smear metal that glues on the tool bit.
Further, microthermal cutting fluid and microthermal high-pressure gas cool off through cooling system, cooling system includes compressor, evaporimeter, evaporating pipe, condenser and expansion valve, the evaporimeter with the evaporating pipe is parallelly connected compressor with between the expansion valve, the condenser respectively with compressor with the expansion valve is connected.
Further, cryogenic cutting fluid exchanges heat in the heat exchange box through the evaporating pipe.
Furthermore, the evaporator further comprises a heat exchange plate, wherein a plurality of heat exchange holes are formed in the heat exchange plate, and the evaporation tubes are arranged in the heat exchange holes.
Furthermore, a stirrer is arranged in the heat exchange box and used for stirring the cutting fluid.
The cutting fluid heat exchanger further comprises a filter box, wherein a filter screen is arranged in the filter box, and the cutting fluid enters the heat exchange box after being filtered by the filter box.
Furthermore, a magnet is also arranged in the filter box and is positioned at the water outlet of the filter box.
Further, the cutting fluid is a mixed solution of water-soluble deep hole cutting fluid and engine oil.
Further, microthermal high-pressure gas cools off and adds the inside of drill bit through gas system, gas system is including air compressor, gas holder, solenoid valve, cooler bin and the outlet duct that connects gradually, the evaporimeter is equipped with in the cooler bin, and high-pressure gas enters the outlet duct behind the evaporimeter.
Furthermore, the device also comprises a flow meter and an electric valve, wherein the flow meter and the electric valve are both arranged on the air outlet pipe.
Compared with the prior art, the invention has the following beneficial effects:
the deep hole machining method provided by the invention can reduce the abrasion of the cutter, has a good chip breaking effect, and can improve the smoothness of the inner surface of the hole.
Detailed Description
The present invention will now be further described with reference to examples.
A deep hole processing method comprises the steps of introducing low-temperature cutting fluid and low-temperature high-pressure gas into a hole in a drill bit, adding the high-pressure gas intermittently, wherein the temperature of the low-temperature cutting fluid and the temperature of the low-temperature high-pressure gas are both 5-5 ℃.
The cutting temperature can reach 300-1000 ℃, and the high temperature causes cutter abrasion. The thermal wear directly related to the temperature includes phase change wear, adhesive wear, diffusion wear, oxidation wear, electrochemical wear, thermal crack and the like, but scratches, abrasive wear and edge chipping in mechanical wear are also related to the temperature to different degrees, and in addition, the cutting temperature can also influence the generation of built-up edges and scale burrs, so that the wear of the cutter can also be influenced, and all factors influencing the cutting temperature can directly or indirectly influence the wear of the cutter. Therefore, to improve the wear of the tool, the fundamental measure is to reduce the cutting temperature.
The intermittent introduction of high-pressure low-temperature gas can form low-temperature bubbles.
The low-temperature high-pressure gas can simultaneously realize the temperature reduction of the cutter and the workpiece.
The low-temperature cutting fluid and the low-temperature high-pressure gas are cooled through a cooling system, the cooling system comprises a refrigeration compressor, an evaporator, an evaporating pipe, a condenser and an expansion valve, the evaporator and the evaporating pipe are connected between the refrigeration compressor and the expansion valve in parallel, and the condenser is connected with the refrigeration compressor and the expansion valve respectively.
The cryogenic cutting fluid exchanges heat in the heat exchange box through the evaporating pipe.
The evaporator comprises a heat exchange plate, a plurality of heat exchange holes are formed in the heat exchange plate, and the evaporation tubes are installed in the heat exchange holes.
The evaporating pipe is a copper pipe and is fixed in the heat exchange hole in a pipe expansion mode. The heat exchange plate is a flat plate, the heat exchange area can be increased by the flat plate, the surface of the flat plate is convenient to clean, the surface is convenient to clean regularly, and the adhesion layer is prevented from being formed to influence heat exchange. The flat plate is an aluminum plate.
A stirrer is arranged in the heat exchange box and used for stirring the cutting fluid.
The stirrer is used for stirring the cutting fluid to improve the heat exchange efficiency and the heat exchange speed.
The cutting fluid is filtered by the filter box and then enters the heat exchange box.
The magnet is also arranged in the filter tank and is positioned at the water outlet of the filter tank.
The cutting fluid is a mixed solution of water-soluble deep hole cutting fluid and engine oil.
The low-temperature high-pressure gas cools and is added into the drill bit through the gas system, the gas system comprises an air compressor, a gas storage tank, an electromagnetic valve, a cooling box and an air outlet pipe which are connected in sequence, an evaporator is arranged in the cooling box, and the high-pressure gas enters the air outlet pipe after passing through the evaporator.
The air compressor changes air into high-pressure gas to be stored in the gas storage tank, the gas in the gas storage tank enters the cooling tank after the electromagnetic valve is opened, and the high-pressure gas enters the drill bit through the gas outlet pipe after being cooled by the evaporator.
In the prior art, the problems of cutter abrasion, poor chip breaking and the like are solved by improving the structure and the processing mode of a deep hole drill bit, but the technical progress is slow. The present invention solves the above problems by reducing the temperature of the machining zone, i.e. the temperature of the cutting head, the workpiece and the chips, especially the temperature of the chips is instantaneously reduced, so that the chips are hardened and more easily broken. And the high-pressure gas that the clearance lets in can form high-pressure bubble, and the high-pressure bubble enters into the contact surface of drill bit and work piece and easily forms the explosion effect, and the shock wave that produces in the twinkling of an eye can effectively get the smear metal that glues on the tool bit.
Still include flowmeter and electrically operated valve, flowmeter and electrically operated valve all install on the outlet duct.
The flow meter and the electrically operated valve control the flow of the gas.
The pressure of the high-pressure gas is 0.2-1 MPa.
The deep hole machining method provided by the invention can effectively reduce the temperature of the cutting tool and the workpiece, effectively inhibit the tool abrasion, prolong the service life of the tool, improve the machining quality of the hole surface, improve the machining precision and save the use cost of the cutting fluid.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.
Claims (10)
1. A deep hole processing method is characterized in that,
the hole to the inside drill bit lets in microthermal cutting fluid and microthermal high-pressure gas, high-pressure gas intermittent type formula is added, microthermal cutting fluid with microthermal high-pressure gas's temperature is 5-5 ℃.
2. A deep-hole drilling method according to claim 1,
cryogenic cutting fluid and cryogenic high-pressure gas cool off through cooling system, cooling system includes compressor, evaporimeter, evaporating pipe, condenser and expansion valve, the evaporimeter with the evaporating pipe is parallelly connected compressor with between the expansion valve, the condenser respectively with compressor with the expansion valve is connected.
3. A deep-hole drilling method according to claim 2,
and the low-temperature cutting fluid exchanges heat in the heat exchange box through the evaporation tube.
4. A deep-hole drilling method according to claim 3,
the evaporator comprises a heat exchange plate, a plurality of heat exchange holes are formed in the heat exchange plate, and the evaporation tubes are installed in the heat exchange holes.
5. A deep-hole drilling method according to claim 3,
and a stirrer is arranged in the heat exchange box and used for stirring the cutting fluid.
6. A deep-hole drilling method according to claim 3,
the cutting fluid heat exchange device is characterized by further comprising a filter box, wherein a filter screen is arranged in the filter box, and the cutting fluid enters the heat exchange box after being filtered by the filter box.
7. A deep-hole drilling method according to claim 6,
and the magnet is also arranged in the filter tank and is positioned at the water outlet of the filter tank.
8. A deep-hole drilling method according to claim 1,
the cutting fluid is a mixed solution of water-soluble deep hole cutting fluid and engine oil.
9. A deep-hole drilling method according to claim 2,
microthermal high-pressure gas cools off and adds the inside of drill bit through gas system, gas system is including air compressor, gas holder, solenoid valve, cooler bin and the outlet duct that connects gradually, the evaporimeter is equipped with in the cooler bin, and high-pressure gas enters the outlet duct behind the evaporimeter.
10. A method of deep hole drilling according to claim 9, further comprising a flow meter and an electrically operated valve, both of which are mounted on the outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127711.7A CN112222452A (en) | 2020-10-20 | 2020-10-20 | Deep hole machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127711.7A CN112222452A (en) | 2020-10-20 | 2020-10-20 | Deep hole machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112222452A true CN112222452A (en) | 2021-01-15 |
Family
ID=74117913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011127711.7A Pending CN112222452A (en) | 2020-10-20 | 2020-10-20 | Deep hole machining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112222452A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225779A (en) * | 1996-02-20 | 1997-09-02 | Kamui Sangyo Kk | Temperature regulating device for machine liquid agent |
| JP2007331042A (en) * | 2006-06-13 | 2007-12-27 | Tokuden Co Ltd | Deep hole machining device |
| CN102528855A (en) * | 2012-01-16 | 2012-07-04 | 中国林业科学研究院木材工业研究所 | Multi-saw blade sawing and cooling system of woods and bamboos |
| CN204413757U (en) * | 2014-12-03 | 2015-06-24 | 安徽汇联机械工业有限公司 | A kind of lathe water circulation system |
| CN105751000A (en) * | 2014-12-18 | 2016-07-13 | 重庆仕邦塑料制品有限公司 | Multi-media cooling device for deep hole boring head tool |
| CN106271788A (en) * | 2016-10-17 | 2017-01-04 | 浙江纺织服装职业技术学院 | Award gas formula drilling tool system of connections and the cooling means of drilling tool |
| CN209272674U (en) * | 2018-11-30 | 2019-08-20 | 重庆隽盛机械有限公司 | A kind of Gear Processing cutter device |
| CN209664931U (en) * | 2019-03-18 | 2019-11-22 | 浙江华特数控机床有限公司 | A kind of efficient main-shaft core for removing metal fragment |
| CN210024655U (en) * | 2019-06-20 | 2020-02-07 | 三河同飞制冷股份有限公司 | Constant-current water supply variable-frequency water cooler for numerical control machine tool |
| CN210107798U (en) * | 2019-06-20 | 2020-02-21 | 三河同飞制冷股份有限公司 | Double-loop double-precision control cooling machine |
-
2020
- 2020-10-20 CN CN202011127711.7A patent/CN112222452A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225779A (en) * | 1996-02-20 | 1997-09-02 | Kamui Sangyo Kk | Temperature regulating device for machine liquid agent |
| JP2007331042A (en) * | 2006-06-13 | 2007-12-27 | Tokuden Co Ltd | Deep hole machining device |
| CN102528855A (en) * | 2012-01-16 | 2012-07-04 | 中国林业科学研究院木材工业研究所 | Multi-saw blade sawing and cooling system of woods and bamboos |
| CN204413757U (en) * | 2014-12-03 | 2015-06-24 | 安徽汇联机械工业有限公司 | A kind of lathe water circulation system |
| CN105751000A (en) * | 2014-12-18 | 2016-07-13 | 重庆仕邦塑料制品有限公司 | Multi-media cooling device for deep hole boring head tool |
| CN106271788A (en) * | 2016-10-17 | 2017-01-04 | 浙江纺织服装职业技术学院 | Award gas formula drilling tool system of connections and the cooling means of drilling tool |
| CN209272674U (en) * | 2018-11-30 | 2019-08-20 | 重庆隽盛机械有限公司 | A kind of Gear Processing cutter device |
| CN209664931U (en) * | 2019-03-18 | 2019-11-22 | 浙江华特数控机床有限公司 | A kind of efficient main-shaft core for removing metal fragment |
| CN210024655U (en) * | 2019-06-20 | 2020-02-07 | 三河同飞制冷股份有限公司 | Constant-current water supply variable-frequency water cooler for numerical control machine tool |
| CN210107798U (en) * | 2019-06-20 | 2020-02-21 | 三河同飞制冷股份有限公司 | Double-loop double-precision control cooling machine |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20210115 |