CN113478015B - New energy motor shell bearing hole machining process - Google Patents
New energy motor shell bearing hole machining process Download PDFInfo
- Publication number
- CN113478015B CN113478015B CN202110810410.2A CN202110810410A CN113478015B CN 113478015 B CN113478015 B CN 113478015B CN 202110810410 A CN202110810410 A CN 202110810410A CN 113478015 B CN113478015 B CN 113478015B
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- reamer
- scraping
- workpiece
- bearing hole
- workbench
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- 238000003754 machining Methods 0.000 title abstract description 22
- 238000007790 scraping Methods 0.000 claims abstract description 59
- 238000005516 engineering process Methods 0.000 claims abstract description 11
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 6
- 239000011195 cermet Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D75/00—Reaming machines or reaming devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
- B23D77/003—Reaming tools with means for preventing chatter
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/26—Fluid-pressure drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention belongs to the field of bearing hole machining, in particular to a new energy motor shell bearing hole machining process, a workpiece is fixed through a workbench, the workbench is started to drive the workpiece to rotate, when the workbench starts the workpiece to rotate, a hydraulic oil cylinder is started to drive a scraping reamer to feed simultaneously, and the rotating workpiece is machined; the processing technology that the workpiece is processed by the rotation of the existing boring cutter and is fixed is replaced; through the new processing technology and the effect of matching the scraping reamer blade made of the cermet material, the vibration generated by the cutter during processing of the workpiece can be effectively reduced, the roundness of the processed bearing hole is fuller, the precision is higher, the size meets the marking requirement, the roughness in the hole is lower, the loss rate of the blade is effectively reduced, and the problem that the size deviation of the bearing hole processed by the existing processing technology is large is solved.
Description
Technical Field
The invention relates to the field of bearing hole machining, in particular to a new energy motor shell bearing hole machining process.
Background
At present, a fixed workpiece is mostly adopted when a bearing hole of a new energy motor shell is machined, and then a boring cutter is started to rotate to drill a hole at a specified position on the workpiece so as to machine the bearing hole.
In the existing processing technology, because the boring cutter only has one group of blades and is not supported enough, the loss of the blades is fast, the processing precision is low, the processing size deviation is large, and the boring cutter is unstable during turning and shakes a large amount, so that the roundness of a processed bearing hole is poor, and the bearing is inconvenient to mount; therefore, the new energy motor shell bearing hole machining process is provided for solving the problems.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that most of bearing holes machined by the existing machining process have large size deviation, the invention provides a new energy motor shell bearing hole machining process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a new energy motor shell bearing hole machining process, which comprises the following steps of:
s1: fixing the workpiece on a workbench of a vertical lathe;
s2: starting the workbench to drive the workpiece to rotate;
s3: starting a hydraulic oil cylinder to drive the scraping reamer to move downwards;
s4: and (4) drilling holes at preset positions on the workpiece through the scraping reamer.
Preferably, in S4, the scraping reamer has 5 to 20 blades, the width of the cutting line between two adjacent groups of blades is not consistent, one group is 0.2 to 0.4mm, the other group is 0.3 to 0.5mm, in S4, the cutting angles between two adjacent groups of blades of the scraping reamer are not consistent, namely 58 ± 5 degrees and 62 ± 5 degrees, respectively, in S4, the front angles of all the blades on the scraping reamer are consistent to 5 to 15 degrees, and the cutter body adopts an asymmetric design mode, the machining efficiency of the scraping reamer on the bearing hole is improved by arranging a plurality of groups of blades, the effect of conveniently discharging waste materials is achieved by the aid of staggered cutting angles, vibration generated by driving of the bearing hole is absorbed by the asymmetric design mode, and the scraping reamer is more stable when the bearing hole is opened.
Preferably, in the step S2, the rotating speed of the workpiece is 600-1000 rpm, and the rotor cavity drives the workpiece to rotate, so that the deviation of the machining precision caused by the fact that the workpiece is driven to displace by collision generated when the traditional middle cutter body rotates and contacts with the workpiece is avoided.
Preferably, in S4, the material of scraping the reamer blade is cermet material, and the blade welding makes the cutter sturdier and more durable through scraping the reamer blade of cermet material on scraping the reamer cutter body, has improved the life who scrapes the reamer.
Preferably, in the step S3, the feed size of the hydraulic oil cylinder is 0.4-1 mm/r, and the reamer can better process the bearing hole through a relatively low-speed feed amount, so that the roughness of the inner wall of the bearing hole is lower.
Preferably, in S4, adopt the bolt to be connected between scraping reamer and the knife rest, be connected through the bolt and can be convenient quick change scraping reamer to scraping between reamer and the knife rest.
Preferably, in S4, the scraping reamer body is made of a hard alloy substrate, and the blade body made of the hard alloy substrate plays a role in facilitating the blade to penetrate into the deep cavity and reducing vibration generated when the blade is used for machining the bearing hole.
The invention has the advantages that:
according to the new energy motor shell bearing hole machining process, a workpiece is fixed through the workbench, the workbench is started to drive the workpiece to rotate, when the workbench starts the workpiece to rotate, the hydraulic oil cylinder is started to drive the scraping reamer to feed at the same time, and the rotating workpiece is machined; the processing technology that the workpiece is processed by the rotation of the existing boring cutter and is fixed is replaced; through the cooperation effect of a new processing technology and the scraping reamer blade made of metal ceramic materials, the vibration of a cutter generated when a workpiece is processed can be effectively reduced, the roundness of a processed bearing hole is fuller, the precision is higher, the size meets the marking requirement better, the roughness in the hole is lower, the loss rate of the blade is effectively reduced, the blade needs to be replaced every 80 workpieces by processing in the original mode, the service life of the blade can reach about 800 after the new processing technology is adopted, and the problems that the size deviation of most of the bearing holes processed by the existing processing technology is large, the cutter is frequently replaced, the efficiency is reduced, and the energy consumption is reduced are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a flow chart of the processing of the present invention;
FIG. 2 is a schematic view of a front cross-sectional mechanism of a workpiece according to the present invention;
FIG. 3 is a schematic view of a front view of a scraping reamer of the present invention;
FIG. 4 is a schematic bottom view of the scraping reamer of the present invention;
fig. 5 is a partial structural schematic view of the scraping reamer of the present invention.
In the figure: alpha, an angle of entry; β, anterior angle;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-3, a machining process of a bearing hole of a motor housing of a new energy source includes the following steps:
s1: fixing the workpiece to a worktable;
s2: starting the workbench to drive the workpiece to rotate;
s3: starting a hydraulic oil cylinder to drive the scraping reamer to move downwards;
s4: and (4) drilling holes at preset positions on the workpiece through the scraping reamer.
When the machining process works, the machining precision, the size, the cutter stability and the roundness of the bearing hole on the workpiece can be effectively improved, and the machining process is greatly improved compared with the existing machining process.
In the S4, the scraping reamer is provided with 5-20 edges, the widths of the knife lines between two adjacent groups of blades are different, one group is 0.2-0.4mm, the other group is 0.3-0.5mm, in the S4, the cutting angles alpha between two adjacent groups of blades of the scraping reamer are different and are respectively 58 +/-5 degrees and 62 +/-5 degrees, in the S4, the rake angles beta of all the blades on the scraping reamer are 5-15 degrees and the cutter body adopts an asymmetric design mode;
the during operation, play the effect that improves the efficiency of processing to the work piece through setting up the multiunit cutting edge, it is faster to the process velocity of work piece to make to scrape the reamer, through the effect of different entrance angle alpha between two sets of blades, play the effect with waste discharge of convenience, prevent that the waste material from piling up in the downthehole messenger downthehole jam, play the effect of accurate control hole site degree of depth through unanimous blade anterior angle beta, prevent that the hole site bottom from producing unevenness's the condition, the mode through asymmetric design carries out absorptive effect to the vibration of blade wrong production when carrying out the during operation, prevent that the holistic vibration range of cutter is too big, produce the influence to the circularity and the precision of dead eye.
In the S2, the rotating speed of the workpiece is 600-1000 r/min;
the during operation drives the work piece through the workstation and produces and rotate, because the quality of work piece is great, and the work piece is anomalous dark tubbiness, and the work piece can produce the relatively poor condition of dynamic balance when rotating, if the rotational speed is too fast can lead to rotor cavity and work piece to produce simultaneously and rock, leads to the work piece and scrapes and produce the collision between the reamer, makes and scrape the reamer and damage, consequently need notice the rotational speed of control work piece at the in-process of processing.
In the S4, the scraping reamer blade is made of a metal ceramic material and is welded on the scraping reamer body;
during operation, the service life of the scraping reamer is prolonged greatly compared with that of an existing cutter under the action of the blade made of the metal ceramic material, the machining precision of the existing cutter is greatly reduced after the existing cutter machines 80 workpieces, the cutter made of the metal ceramic material cannot generate the condition after machining 800 left and right workpieces, and the condition that the blade needs to be replaced frequently is avoided.
In the S3, the feeding size of the hydraulic oil cylinder is 0.4-1 mm/rotation;
during operation, if adopt lower feed volume can make the bearing hole inner wall of processing smoother, if adopt higher feed volume probably can make the bearing hole inner wall of processing comparatively crude, can be better process the great work piece of hardness variation range through the rotational speed cooperation of control feed volume and work piece, prevent that the phenomenon that the sword was hit from appearing and make scraping reamer and work piece produce the damage.
In the S4, the scraping reamer is connected with the tool rest through bolts;
during operation, the cutter body and the cutter frame are connected and fastened through the threaded connection mode, and meanwhile, the cutter body and the cutter frame are easy to detach and replace, the cutter is convenient to maintain, and the time required for replacing the cutter is saved.
In S4, the scraping reamer body adopts a hard alloy matrix;
during operation, the effect of the cutter body adopting the hard alloy matrix is convenient for scraping the effect that the whole reamer is convenient to enter the bearing hole to be processed, even if the scraping effect that the whole reamer enters the inside of the bearing hole, the vibration with a larger amplitude can not be generated, the precision in processing is ensured, and the vibration is restrained and relieved through the effect of the cutter body adopting the hard alloy matrix.
Example two
The invention relates to a new energy motor shell bearing hole processing technology, which comprises the following steps:
s1: fixing the workpiece on a vertical lathe workbench;
s2: starting the workbench to drive the workpiece to rotate;
s3: starting a hydraulic oil cylinder to drive the workbench and the workpiece to move upwards;
s4: and (4) drilling holes at preset positions on the workpiece through the scraping reamer.
In S4, the scraping reamer is provided with 5-20 edges, the widths of the cutting lines between two adjacent groups of blades are different, one group is 0.2-0.4mm, the other group is 0.3-0.5mm, in S4, the cutting angles alpha between two adjacent groups of blades of the scraping reamer are different and are respectively 58 +/-5 degrees and 62 +/-5 degrees, in S4, all the front angles beta of the blades on the scraping reamer are 5-15 degrees, and the cutter body adopts an asymmetric design mode.
And in the S2, the rotating speed of the workpiece is 600-1000 r/min.
S4, the scraping reamer blade is made of a metal ceramic material and welded on the scraping reamer body
And in the S3, the upward moving speed of the workbench and the workpiece is 0.4-1 mm/rotation.
And in S4, the scraping reamer and the tool rest are connected through bolts.
And in S4, the scraping reamer body adopts a hard alloy matrix.
When the scraping reamer machining device works, the workbench and the workpiece move upwards to enable the workpiece rotating at the moment to be removed from the scraping reamer, the scraping reamer is enabled to machine the designated position of the workpiece, the scraping reamer can be fixed more stably through the method, and vibration generated when the scraping reamer machines the workpiece is reduced.
According to the working principle, when a bearing hole is to be formed in a workpiece, the workpiece is firstly fixed on a workbench, then the workbench is started to drive the workpiece to rotate at a speed of 600-1000 rpm, a hydraulic oil cylinder is started to drive a scraping reamer to feed the workpiece at a speed of 0.4-1 mm/rpm after the workpiece starts to rotate, the designated position of the workpiece is perforated, vibration during perforating is absorbed under the action of the asymmetrically designed scraping reamer, so that the scraping reamer is more stable during perforating, and the roundness, the roughness and the size of the machined bearing hole are more standard.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (1)
1. New forms of energy motor casing dead eye processing technology, its characterized in that: the processing technology comprises the following steps:
s1: fixing the workpiece on a workbench of a vertical lathe;
s2: starting the workbench to drive the workpiece to rotate;
s3: starting a hydraulic oil cylinder to drive the scraping reamer to move downwards;
s4: tapping at a preset position on the workpiece through a scraping reamer;
in the S4, the scraping reamer is provided with 5-20 blades, the widths of the blade lines between two adjacent groups of blades are different, one group is 0.2-0.4mm, the other group is 0.3-0.5mm, in the S4, the cutting angles (alpha) between two adjacent groups of blades of the scraping reamer are different and are respectively 58 +/-5 degrees and 62 +/-5 degrees, in the S4, the rake angles (beta) of all the blades on the scraping reamer are 5-15 degrees and the cutter body adopts an asymmetric design mode;
in the S2, the rotating speed of the workpiece is 600-1000 revolutions/min; (ii) a In the S4, the scraping reamer blade is made of a metal ceramic material and is welded on the scraping reamer body;
in the S3, the feeding size of the hydraulic oil cylinder is 0.4-1 mm/rotation;
in the S4, the scraping reamer is connected with the tool rest through bolts;
and in S4, the scraping reamer body adopts a hard alloy matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110810410.2A CN113478015B (en) | 2021-07-19 | 2021-07-19 | New energy motor shell bearing hole machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110810410.2A CN113478015B (en) | 2021-07-19 | 2021-07-19 | New energy motor shell bearing hole machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113478015A CN113478015A (en) | 2021-10-08 |
| CN113478015B true CN113478015B (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110810410.2A Active CN113478015B (en) | 2021-07-19 | 2021-07-19 | New energy motor shell bearing hole machining process |
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| CN (1) | CN113478015B (en) |
Citations (13)
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| GB563402A (en) * | 1943-04-02 | 1944-08-11 | George H Alexander Machinery L | Improvements relating to reamers, milling cutters and like cutting tools |
| GB1309181A (en) * | 1970-06-03 | 1973-03-07 | Fagersta Ab | Cutter or reamer tool |
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| CN101081450A (en) * | 2006-05-30 | 2007-12-05 | 上海贤达压力容器制造有限公司 | Big edge angular reamer |
| CN102145448A (en) * | 2011-04-27 | 2011-08-10 | 成都利君实业股份有限公司 | Method for machining blind holes on high-hardness metal material in batches |
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| CN110893488A (en) * | 2019-12-24 | 2020-03-20 | 常州利德切削技术有限公司 | Efficient unequal multi-blade reamer |
| CN111002003A (en) * | 2019-12-24 | 2020-04-14 | 常州利德切削技术有限公司 | Efficient and long-service-life hydraulic valve main hole machining method |
| CN111168115A (en) * | 2020-03-17 | 2020-05-19 | 浙江德弘机电科技有限公司 | High-precision aluminum girder drilling process |
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| GB1309181A (en) * | 1970-06-03 | 1973-03-07 | Fagersta Ab | Cutter or reamer tool |
| CN101081450A (en) * | 2006-05-30 | 2007-12-05 | 上海贤达压力容器制造有限公司 | Big edge angular reamer |
| CN1872472A (en) * | 2006-06-30 | 2006-12-06 | 重庆长安汽车股份有限公司 | Dedicated reamer made from magnesium alloy for cabinet of speed changer |
| CN102145448A (en) * | 2011-04-27 | 2011-08-10 | 成都利君实业股份有限公司 | Method for machining blind holes on high-hardness metal material in batches |
| CN103128373A (en) * | 2011-11-30 | 2013-06-05 | 深圳市中天精密工具有限公司 | Polycrystalline diamond reamer used for machining holes with discontinuous hole walls |
| CN102699440A (en) * | 2012-06-21 | 2012-10-03 | 福建省标光阀门科技有限公司 | Tool and method for processing concentric axle holes on valve body of valve |
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| CN110893488A (en) * | 2019-12-24 | 2020-03-20 | 常州利德切削技术有限公司 | Efficient unequal multi-blade reamer |
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|---|---|
| CN113478015A (en) | 2021-10-08 |
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Address after: 401121 No.1, East Section of Tianshan Avenue, Yubei District, Chongqing Patentee after: Chongqing Yujiang Die Casting Co.,Ltd. Address before: 400000 No.1, east section of Tianshan Avenue, Liangjiang New District, Yubei District, Chongqing Patentee before: CHONGQING YUJIANG DIE-CASTING Co.,Ltd. |
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