CN109604682B - High-precision conical surface deep hole machining process for large-scale shielding motor temperature sensor sleeve - Google Patents

High-precision conical surface deep hole machining process for large-scale shielding motor temperature sensor sleeve Download PDF

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Publication number
CN109604682B
CN109604682B CN201811561319.6A CN201811561319A CN109604682B CN 109604682 B CN109604682 B CN 109604682B CN 201811561319 A CN201811561319 A CN 201811561319A CN 109604682 B CN109604682 B CN 109604682B
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Prior art keywords
hole
conical
deep hole
temperature sensor
processing
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CN201811561319.6A
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CN109604682A (en
Inventor
杨振
刘宇晨
刘继东
赖俊良
黄秀波
郑维
柴文虎
宋小亮
王义峰
杨立峰
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Harbin Electric Power Equipment Co Ltd
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Harbin Electric Power Equipment Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B41/00Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/02Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B35/00Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q11/00Accessories 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
    • B23Q11/0042Devices for removing chips
    • B23Q11/005Devices for removing chips by blowing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q11/00Accessories 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
    • B23Q11/12Arrangements for cooling or lubricating parts of the machine

Abstract

The invention relates to a high-precision conical surface deep hole processing technology for a large-scale shielding motor temperature sensor sleeve, which is characterized in that a stepped drill bit and a conical reamer with various dimensions are used, reasonable processing parameters and a processing sequence are selected, a straight hole part is processed on the sleeve by processing a guide hole, then the stepped drill bit, a flat-bottom drill bit and the conical reamer are used for processing the conical surface deep hole, reasonable chip removal is carried out in the process, a conical surface deep hole is processed by adopting a main shaft feeding mode, and a cutter is used for cooling in a cooling mode, so that the conical surface deep hole processing with high precision requirements is achieved, the drilling mode is stable, the localization of the high-precision conical surface deep hole processing of the temperature sensor sleeve is realized, the significance is achieved, the cost is saved for enterprises, and.

Description

High-precision conical surface deep hole machining process for large-scale shielding motor temperature sensor sleeve
The technical field is as follows:
the invention relates to a high-precision conical surface deep hole machining process for a large shielding motor temperature sensor sleeve.
Background art:
the sleeve of the temperature sensor is a key part for measuring water temperature of a large-sized shielding motor bearing, when the temperature sensor is correctly installed in the sleeve, the temperature changes 63.2 ℃ in a step mode from room temperature to about 83 ℃ of water temperature, the temperature flows on the sensor in a transverse mode at 3914.4mm/s, the random combination of the temperature sensor and the sleeve does not exceed the reaction standard of 7 seconds, and the water temperature change of the motor bearing can be detected quickly and accurately, so the surface roughness of the inner hole conical surface of the sleeve at least reaches 3.2 mu m, and the size precision can be tightly attached to the end conical surface of the sensor only when the size precision reaches high requirements. The taper of the inner hole of the temperature sensor sleeve is 1 degree 30', the size of the straight hole is phi 6.5mm, the tolerance is 0.2mm, the minimum diameter of the bottom taper hole is 4mm, the whole hole depth is 375mm, the drilling depth reaches 94 times of the diameter of a drill bit, and the conical surface hole reaming is very difficult under the small hole diameter, and the high-precision conical surface deep hole machining process of the temperature sensor sleeve can be adopted to complete machining.
For the high-precision deep hole conical surface machining, domestic machining can only be carried out by adopting a professional deep hole machining machine tool generally, the machined deep hole of a common machine tool cannot meet the requirements of nuclear power products in terms of roughness and position, the depth of the hinged conical surface of the temperature sensor sleeve reaches 94 times of the diameter of a drill bit, the mature machining process scheme for the inner hole conical surface of the temperature sensor sleeve without the large-scale shielding motor is domestic, the sleeve can only be purchased abroad, the purchase period is long, uncertainty exists, the high-precision conical surface deep hole machining process of the temperature sensor sleeve is adopted, the high-precision conical surface deep hole machining of the temperature sensor sleeve is achieved, the drilling mode is stable, the localization of the high-precision conical surface deep hole machining of the temperature sensor sleeve is realized, the great significance is achieved, the machine tool utilization rate and the production.
The invention content is as follows:
the invention aims to provide a high-precision conical surface deep hole machining process for a large shielding motor temperature sensor sleeve, which adopts reasonable machining parameters, a chip removal method and a machining sequence to connect a machine tool cooling system to realize high-precision conical surface deep hole machining. In order to achieve the purpose, the scheme is as follows:
1) fixing a temperature sensor sleeve on a rotary worktable of a numerical control five-axis machining center and aligning;
2) processing a guiding hole of the adaptive deep hole drill bit on the end face of the temperature sensor sleeve;
3) processing the size of a straight hole of the temperature sensor sleeve by using a deep hole drill;
4) using a flat-bottom drill to drill a flat-bottom deep hole drill after processing;
5) using stepped drill bits with 3 dimensions to process the size of a taper hole, starting a machine tool cooling system, selecting cutting parameters to be that the cutter feeds 8mm/min at the rotating speed of 340r/min, starting processing to the required depth by adopting a main shaft feeding mode, and performing anti-scrap cleaning on the drill bit when the stepped drill bit feeds 2mm in the period;
6) a flat-bottom drill bit is used for selecting cutting parameters to be the rotating speed of 200r/min, and a cutter feeds the cutting parameters to be 2.4mm/min to process the drill point left after the stepped drill bit drills, so that the flat-bottom purpose is achieved;
7) the method comprises the steps of using cone reamers with 3 dimensions to process the size of a cone hole, starting a machine tool cooling system, enabling the first two cone reamers to select cutting parameters to feed a cutter at a rotating speed of 45r/min for 2mm/min, enabling the third cone reamer to select cutting parameters to feed a cutter at a rotating speed of 38r/min for 1.2mm/min to 0.6mm/min, starting processing to the required depth in a spindle feeding mode, performing anti-chip cleaning on a drill bit when the cone reamer feeds 1mm to 2mm every time, and enabling an air pipe to penetrate deep into the bottom of the deep hole to introduce compressed air to perform blowing cleaning before drilling each time.
The invention has the technical effects that:
the high-precision conical surface deep hole processing technology for the sleeve of the motor temperature sensor adopts the stepped drill bits and the conical reamers with various dimensions, selects reasonable processing parameters and processing sequence, processes a straight hole part on the sleeve by processing a guide hole, then uses the stepped drill bits, the flat-bottom drill bits and the conical reamers to process the conical surface deep hole size, reasonably removes chips in the process, processes the conical surface deep hole by adopting a main shaft feeding mode, and adopts cutter internal cooling in a cooling mode, thereby achieving the conical surface deep hole processing with high precision requirement, ensuring stable drilling mode, realizing the localization of the high-precision conical surface deep hole processing of the sleeve of the temperature sensor, having great significance, saving cost for enterprises and improving the utilization rate and the production capacity of a machine tool.
For the processing of the conical surface of the high-precision deep hole, domestic processing can only adopt a professional deep hole processing machine tool to process, only one type of drill bit or reamer is used simply, the drilling depth can reach about 70 times of the diameter of the drill bit, the reaming depth generally reaches about 10 times of the diameter of the reamer, and only a straight hole is processed instead of a deep hole of the conical surface, so that the requirement of the deep hole processing of the high-precision conical surface of the temperature sensor sleeve can be far reached, the deep hole depth of the conical surface needs to reach 94 times of the diameter of a cutter, and the mature process scheme is absent.
The temperature sensor sleeve high-precision conical surface deep hole machining process needs to pay attention to control of key machining parameters, the diameter of a deep hole of a conical surface inside a product is only 4mm, the minimum diameter of the conical surface is less than the diameter of a drill bit, the taper of an inner hole is 1-30', the depth of the whole hole is 375mm, the depth of the conical surface of a cutter reamer reaches 94 times of the diameter of the drill bit, especially, the requirements on the size precision, the surface roughness and the position degree of the deep hole are very high, great difficulty is brought to drilling and reaming work, the jumping value of a clamping cutter needs to be strictly controlled before machining, the chip removal distance of the cutter is accurately calculated, a stepped drill bit is used for machining a conical hole size profile in the machining process, the stress load of a conical reamer is relieved, a flat-bottom drill point of a flat-bottom drill bit is used afterwards, uneven stress on the.
Description of the drawings:
FIG. 1 is a schematic view of high-precision deep hole conical surface processing of a temperature sensor sleeve
The specific implementation mode is as follows:
a high-precision conical surface deep hole machining process for a large shielding motor temperature sensor sleeve is characterized by comprising the following steps of: the method comprises the following steps:
1) fixing a temperature sensor sleeve on a rotary worktable of a numerical control five-axis machining center and aligning;
2) processing a guiding hole of the adaptive deep hole drill bit on the end face of the temperature sensor sleeve;
3) as shown in fig. 1, a deep hole drill is used to process the straight hole size of the temperature sensor sleeve;
4) using a flat-bottom drill to drill a flat-bottom deep hole drill after processing;
5) using stepped drill bits with 3 dimensions to process the size of a taper hole, starting a machine tool cooling system, selecting cutting parameters to be that the cutter feeds 8mm/min at the rotating speed of 340r/min, starting processing to the required depth by adopting a main shaft feeding mode, and performing anti-scrap cleaning on the drill bit when the stepped drill bit feeds 2mm in the period;
6) a flat-bottom drill bit is used for selecting cutting parameters to be the rotating speed of 200r/min, and a cutter feeds the cutting parameters to be 2.4mm/min to process the drill point left after the stepped drill bit drills, so that the flat-bottom purpose is achieved;
7) the method comprises the steps of using cone reamers with 3 dimensions to process the size of a cone hole, starting a machine tool cooling system, enabling the first two cone reamers to select cutting parameters to feed a cutter at a rotating speed of 45r/min for 2mm/min, enabling the third cone reamer to select cutting parameters to feed a cutter at a rotating speed of 38r/min for 1.2mm/min to 0.6mm/min, starting processing to the required depth in a spindle feeding mode, performing anti-chip cleaning on a drill bit when the cone reamer feeds 1mm to 2mm every time, and enabling an air pipe to penetrate deep into the bottom of the deep hole to introduce compressed air to perform blowing cleaning before drilling each time.
The specific operation steps are as follows:
1, fixing a temperature sensor sleeve on a rotary worktable of a numerical control five-axis machining center, and aligning to the best state.
2 processing adaptive deep hole drill guide hole on end surface of temperature sensor sleeve
2.1 processing a flat-bottom guide hole adaptive to a deep hole drill on the end surface of the temperature sensor sleeve by using a drill, a boring cutter and a milling cutter;
and 3, processing the straight hole size of the temperature sensor sleeve by using a deep hole drill.
4, processing the drill point by using a flat-bottom drill flat-bottom deep hole drill.
5 installation step drill processing taper hole
5.1 connecting the stepped drill bit with a cutter jacket, and adjusting the run-out value of one end to be the best;
5.2 using the stepped drill bits with 3 dimensions to process the size of the taper hole, starting a machine tool cooling system, selecting cutting parameters as the rotating speed of 340r/min, feeding the cutter for 8mm/min, starting processing by adopting a main shaft feeding mode until the required depth is reached, and performing anti-chip cleaning on the drill bit when the stepped drill bit is fed for 2 mm.
6 use flat bottom drill flat bottom
6.1 connecting the flat-bottom drill bit with a cutter jacket, and adjusting the run-out value of one end to be the best;
6.2, a flat-bottom drill bit is used for selecting cutting parameters of a cutter with the rotating speed of 200r/min to feed 2.4mm/min to process the drill point left after the stepped drill bit drills, and the purpose of flat bottom is achieved.
7 mounting taper reamer for processing taper hole
7.1 connecting the tapered reamer with a cutter jacket, and adjusting the run-out value of one end to the best value;
7.2 use the taper reamer processing taper hole size of 3 dimensions, start lathe cooling system, two kinds of taper reamers in the front select cutting parameter for the rotational speed 45r/min cutter feeds 2mm/min, the third kind of taper reamer select cutting parameter for the rotational speed 38r/min cutter feeds 1.2mm/min to 0.6mm/min, adopt the mode that the main shaft fed to begin to process to required degree of depth, the taper reamer carries out anti-bits clearance drill bit every time feeds 1mm to 2mm during the period, use the tuber pipe to go deep into the deep hole bottom and let in compressed air and blow away the clearance before beginning drilling each time.

Claims (1)

1. A high-precision conical surface deep hole machining process for a large shielding motor temperature sensor sleeve is characterized by comprising the following steps of: the method comprises the following steps:
1) fixing a temperature sensor sleeve on a rotary worktable of a numerical control five-axis machining center and aligning;
2) processing a guiding hole of the adaptive deep hole drill bit on the end face of the temperature sensor sleeve;
3) processing the size of a straight hole of the temperature sensor sleeve by using a deep hole drill;
4) a drill point processed by a flat-bottom drill and a deep-hole drill is used;
5) using stepped drill bits with 3 dimensions to process the size of a taper hole, starting a machine tool cooling system, selecting cutting parameters to be that the cutter feeds 8mm/min at the rotating speed of 340r/min, starting processing to the required depth by adopting a main shaft feeding mode, and performing anti-scrap cleaning on the drill bit when the stepped drill bit feeds 2mm in the period;
6) a flat-bottom drill bit is used for selecting cutting parameters to be the rotating speed of 200r/min, and a cutter feeds the cutting parameters to be 2.4mm/min to process the drill point left after the stepped drill bit drills, so that the flat-bottom purpose is achieved;
7) the method comprises the steps of using cone reamers with 3 dimensions to process the size of a cone hole, starting a machine tool cooling system, enabling the first two cone reamers to select cutting parameters to feed a cutter at a rotating speed of 45r/min for 2mm/min, enabling the third cone reamer to select cutting parameters to feed a cutter at a rotating speed of 38r/min for 1.2mm/min to 0.6mm/min, starting processing to the required depth in a spindle feeding mode, performing anti-chip cleaning on a drill bit when the cone reamer feeds 1mm to 2mm every time, and enabling an air pipe to penetrate deep into the bottom of the deep hole to introduce compressed air to perform blowing cleaning before drilling each time.
CN201811561319.6A 2018-12-20 2018-12-20 High-precision conical surface deep hole machining process for large-scale shielding motor temperature sensor sleeve Active CN109604682B (en)

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CN111168324A (en) * 2020-03-16 2020-05-19 沈阳飞机工业(集团)有限公司 Drilling method for AF1410 steel part after quenching

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2085341C1 (en) * 1995-01-17 1997-07-27 Товарищество с ограниченной ответственностью "Олта" Method of machining of deep conical holes
EP2007539A1 (en) * 2006-04-19 2008-12-31 Walter Ag Method for making a deep hole and a pilot drill therefor
CN101678475A (en) * 2007-06-22 2010-03-24 日立工具股份有限公司 Small-diameter deep hole drill and fine deep hole processing method
CN203197392U (en) * 2013-02-10 2013-09-18 常州市海力工具有限公司 Taper reamer
CN204686192U (en) * 2015-06-06 2015-10-07 云南冶金昆明重工有限公司 A kind of deep hole taper reamer
CN105921943A (en) * 2016-05-26 2016-09-07 长治清华机械厂 Machining method for axial step deep hole system of thin-wall ring
CN207372427U (en) * 2017-09-19 2018-05-18 苏州思麦科精密切削工具有限公司 The universal taper reamer of superfinishing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2085341C1 (en) * 1995-01-17 1997-07-27 Товарищество с ограниченной ответственностью "Олта" Method of machining of deep conical holes
EP2007539A1 (en) * 2006-04-19 2008-12-31 Walter Ag Method for making a deep hole and a pilot drill therefor
CN101678475A (en) * 2007-06-22 2010-03-24 日立工具股份有限公司 Small-diameter deep hole drill and fine deep hole processing method
CN203197392U (en) * 2013-02-10 2013-09-18 常州市海力工具有限公司 Taper reamer
CN204686192U (en) * 2015-06-06 2015-10-07 云南冶金昆明重工有限公司 A kind of deep hole taper reamer
CN105921943A (en) * 2016-05-26 2016-09-07 长治清华机械厂 Machining method for axial step deep hole system of thin-wall ring
CN207372427U (en) * 2017-09-19 2018-05-18 苏州思麦科精密切削工具有限公司 The universal taper reamer of superfinishing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《锥孔刀具的设计及其应用》;吕志纯;《机械制造》;19941231(第12期);第12页 *

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