CN105364088A - Improved machining technology for turning automobile torsion bars - Google Patents
Improved machining technology for turning automobile torsion bars Download PDFInfo
- Publication number
- CN105364088A CN105364088A CN201510977171.4A CN201510977171A CN105364088A CN 105364088 A CN105364088 A CN 105364088A CN 201510977171 A CN201510977171 A CN 201510977171A CN 105364088 A CN105364088 A CN 105364088A
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- China
- Prior art keywords
- turning
- processing technology
- automobile torsion
- torsion bar
- tool
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- 238000005516 engineering process Methods 0.000 title claims abstract description 29
- 238000003754 machining Methods 0.000 title abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000000153 supplemental effect Effects 0.000 claims description 5
- 230000003746 surface roughness Effects 0.000 claims description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention provides an improved machining technology for turning automobile torsion bars. The improved machining technology comprises steps as follows: a) rough turning of end surfaces, center holes, threaded holes and external circles; b) finish turning of the threaded holes and the external circles; c) turning of transitional arc surfaces. According to the improved machining technology for turning the automobile torsion bars, the machining accuracy and efficiency of the automobile torsion bars are significantly improved through clamping manner adjustment, reasonable use of lathe tools, optimization of cutting parameters and accurate control on advance and retreat of lathe carriages.
Description
Technical field
The present invention relates to a kind of processing technology, be specifically related to a kind of processing technology of turning automobile torsion bar, belong to Machining Technology field.
Background technology
In machining, the processing of automobile torsion bar is comparatively common.Automobile torsion bar belongs to typical slender axles part, and its elastic properties of materials is large, and intensity is high, and hardness is high, belongs to hard-cutting material.As the vital part of automobile, automobile torsion bar require use and in testing distortion 55 degree and 170,000 times indeformable, as there is connecing the defect such as cutter scuffing, crackle, Bamboo-shaped, dolioform, tapering, sawtooth in processing, functional inefficacy will be caused in fault location fracture, even there will be larger security incident.
At present, in processing automobile torsion bar process, the problem main manifestations run into is: poor rigidity, when turning as clamping is improper, is easy to the effect because of cutting force and gravity and occurs bending and deformation, producing vibration, thus affect machining accuracy and surface roughness; Thermal diffusion poor performance, can produce sizable line and expand under the effect of heat in metal cutting, if the two ends of axle are fixed bearing, then can because of the flexural deformation by squeezing, and when axle High Rotation Speed, this bending centrifugal force produced will make flexural deformation aggravate further; Axle is long, adds man-hour one-pass required time many, and tool wear is comparatively large, thus adds the geometric tolerances of workpiece.Because the version and working (machining) efficiency that are subject to part limit, existing a lot of processing method is all not suitable for actual processing needs.
Summary of the invention
For the demand, the invention provides a kind of processing technology of turning automobile torsion bar, this processing technology is by adjustment installation way, reasonable employment lathe tool, Optimizing Cutting Conditions and precisely control lathe carriage advance and retreat amount, significantly improves precision and the efficiency of automobile torsion bar processing.
The present invention is a kind of processing technology of turning automobile torsion bar, and described processing technology comprises the steps: a) rough turn end face, center hole, screwed hole and cylindrical, b) finish turning center hole and cylindrical, c) turning transition circle cambered surface.
In a preferred embodiment of the present invention, in described step a), rough turn end face, center hole, screwed hole and cylindrical adopt chuck holding workpiece one end, the installation way of the centre frame supplemental support other end.
In a preferred embodiment of the present invention, in described step a), rough turn tool selection 95 ° of tool cutting edge angle clip type YT15 series hard alloy lathe tools, rough turn cutting parameter is adjusted to: workpiece rotational frequency 250r/min, cutting depth 2mm, amount of feeding 0.25mm.
In a preferred embodiment of the present invention, in described step b), finish turning center hole adopts chuck holding workpiece one end, and the installation way of the centre frame supplemental support other end, fine turning outer circle adopts the installation way of the top support of two yielding movables.
In a preferred embodiment of the present invention, in described step b), 75 ° of tool cutting edge angle welded type YT15 series hard alloy lathe tools selected by shaving tool, its grinding edge is 0.05mm, anterior angle is 15 °, and relief angle is 8 °, and finish turning cutting parameter is adjusted to: workpiece rotational frequency 300r/min, cutting depth 0.5mm, amount of feeding 0.2mm.
In a preferred embodiment of the present invention, in described step b), in finish turning process, the control of lathe carriage advance and retreat amount is: when long by top place 1/3, saddle is often walked 100mm middle carriage constant speed and entered 0.08
Mm; At middle 200mm place, the indeformable motionless upper slide rest of workpiece; Cross 100mm place, center to start to move back upper slide rest, when 100mm often walked by saddle, upper slide rest moves back 0.06mm.
In a preferred embodiment of the present invention, in described step c), turning transition circle cambered surface adopts rotating disk gripping step b) middle shaving tool, adjustment rotating disk center is to the distance at excircle of workpiece place to 300mm and carry out tool setting, then operates rotating disk and go out by 60 ° of angle tool sharpenings the transition circle cambered surface that surface roughness reaches more than Ra3.2.
Present invention is disclosed a kind of processing technology of turning automobile torsion bar, this processing technology is by adjustment installation way, reasonable employment lathe tool, Optimizing Cutting Conditions and precisely control lathe carriage advance and retreat amount, significantly improves precision and the efficiency of automobile torsion bar processing.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the process figure of the processing technology of embodiment of the present invention turning automobile torsion bar.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Fig. 1 is the process figure of the processing technology of embodiment of the present invention turning automobile torsion bar; This processing technology comprises the steps: a) rough turn end face, center hole, screwed hole and cylindrical, b) finish turning center hole and cylindrical, c) turning transition circle cambered surface.
The processing technology of the turning automobile torsion bar that the present invention mentions is pushed up by a folder one of applying in a flexible way and Double Tops point installation way, preferably cutter, Optimizing Cutting Conditions, finishing control cutting force, achieve significantly improving of machining accuracy and efficiency.Wherein, YT15 series hard alloy cutter selected by cutter material; To wear and tear large feature for roughing tool, select 95 ° of tool cutting edge angle clip type lathe tools as rough turn cutter, and hand finish sharpening is within R0.1, deepens chip curling groove, guarantee that cutter has good cutting force and tool life, still can keep the effect of clip type lathe tool quick change blade simultaneously; Finishing tool adopts hand grinding 75 ° of tool cutting edge angle welded type cutters, and this shaving tool grinding edge is 0.05mm, and anterior angle is 15 °, and relief angle is 8 °.Due to workpiece impact by cutting force in cutting process, easily produce self-oscillation, when middle part gone to by cutter, workpiece can lift, and higher than center, therefore point of a knife setting height(from bottom) needs to improve 5.0mm, thus increases pretightning force to turnery processing.Because the change of cutting force and the change of workpiece system rigidity can cause the phenomenon thick in the middle of workpiece, two ends are thin, cause radial dimension difference larger, therefore by precisely controlling lathe middle carriage input, the upper slide rest amount of moving back, effectively eliminate diameter of axle size difference, improve Workpiece Machining Accuracy.
Embodiment
Concrete processing method is as follows:
A) rough turn end face, center hole, screwed hole and cylindrical, first adopts chuck holding workpiece one end, the centre frame supplemental support other end, and on lathe the long 80mm of cylindrical of turning chuck near-end; Then turn around still to adopt a folder one to push up mode holding workpiece, and on lathe the long 80mm of another section of cylindrical of rough turn processing end face, center hole, screwed hole and chuck near-end; Rough turn processing work cylindrical stay 0.5mm allowance afterwards.
Wherein, rough turn tool selection 95 ° of tool cutting edge angle clip type YT15 series hard alloy lathe tools, rough turn cutting parameter is: workpiece rotational frequency 250r/min, cutting depth 2mm, amount of feeding 0.25mm.
B) finish turning center hole and cylindrical, first workpiece turned around and adopt a folder one to push up mode clamping workpiece, select 75 ° of tool cutting edge angle welded type YT15 series hard alloy shaving tool turning fine finishining center holes to given size requirement again, wherein, finish turning cutting parameter is: workpiece rotational frequency 300r/min, cutting depth 0.5mm, amount of feeding 0.2mm.Then adopt the installation way clamping workpiece of the top support of two yielding movables, and on lathe turning fine finishining bar portion cylindrical to given size requirement; Wherein, finish turning cutting parameter is: workpiece rotational frequency 300r/min, cutting depth 0.5mm, amount of feeding 0.2mm.In order to eliminate diameter of axle size difference, improve machining accuracy, in finish turning process, the control of lathe carriage advance and retreat amount is: when long by top place 1/3, saddle is often walked 100mm middle carriage constant speed and entered 0.08mm; At middle 200mm place, the indeformable motionless upper slide rest of workpiece; Cross 100mm place, center to start to move back upper slide rest, when 100mm often walked by saddle, upper slide rest moves back 0.06mm.
C) turning transition circle cambered surface, first lathe saddle and planker is removed, again rotating disk is installed and gripping step b) in shaving tool, then adjusting rotating disk center to the distance at excircle of workpiece place to 300mm carries out tool setting, and operation rotating disk goes out by 60 ° of angle tool sharpenings the transition circle cambered surface that surface roughness reaches more than Ra3.2 afterwards.
Present invention is disclosed a kind of processing technology of turning automobile torsion bar, this processing technology is by adjustment installation way, reasonable employment lathe tool, Optimizing Cutting Conditions and precisely control lathe carriage advance and retreat amount, significantly improves precision and the efficiency of automobile torsion bar processing.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (7)
1. a processing technology for turning automobile torsion bar, is characterized in that, described processing technology comprises the steps: a) rough turn end face, center hole, screwed hole and cylindrical, b) finish turning center hole and cylindrical, c) turning transition circle cambered surface.
2. the processing technology of turning automobile torsion bar according to claim 1, is characterized in that, in described step a), rough turn end face, center hole, screwed hole and cylindrical adopt chuck holding workpiece one end, the installation way of the centre frame supplemental support other end.
3. the processing technology of turning automobile torsion bar according to claim 1, it is characterized in that, in described step a), rough turn tool selection 95 ° of tool cutting edge angle clip type YT15 series hard alloy lathe tools, rough turn cutting parameter is adjusted to: workpiece rotational frequency 250r/min, cutting depth 2mm, amount of feeding 0.25mm.
4. the processing technology of turning automobile torsion bar according to claim 1, it is characterized in that, in described step b), finish turning center hole adopts chuck holding workpiece one end, the installation way of the centre frame supplemental support other end, fine turning outer circle adopts the installation way of the top support of two yielding movables.
5. the processing technology of turning automobile torsion bar according to claim 1, it is characterized in that, in described step b), 75 ° of tool cutting edge angle welded type YT15 series hard alloy lathe tools selected by shaving tool, and its grinding edge is 0.05mm, and anterior angle is 15 °, relief angle is 8 °, finish turning cutting parameter is adjusted to: workpiece rotational frequency 300r/min, cutting depth 0.5mm, amount of feeding 0.2mm.
6. the processing technology of turning automobile torsion bar according to claim 1, it is characterized in that, in described step b), in finish turning process, the control of lathe carriage advance and retreat amount is: when long by top place 1/3, saddle is often walked 100mm middle carriage constant speed and entered 0.08mm; At middle 200mm place, the indeformable motionless upper slide rest of workpiece; Cross 100mm place, center to start to move back upper slide rest, when 100mm often walked by saddle, upper slide rest moves back 0.06mm.
7. the processing technology of turning automobile torsion bar according to claim 1, it is characterized in that, in described step c), turning transition circle cambered surface adopts rotating disk gripping step b) middle shaving tool, adjustment rotating disk center is to the distance at excircle of workpiece place to 300mm and carry out tool setting, then operates rotating disk and go out by 60 ° of angle tool sharpenings the transition circle cambered surface that surface roughness reaches more than Ra3.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977171.4A CN105364088A (en) | 2015-12-23 | 2015-12-23 | Improved machining technology for turning automobile torsion bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977171.4A CN105364088A (en) | 2015-12-23 | 2015-12-23 | Improved machining technology for turning automobile torsion bars |
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| Publication Number | Publication Date |
|---|---|
| CN105364088A true CN105364088A (en) | 2016-03-02 |
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ID=55366990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977171.4A Pending CN105364088A (en) | 2015-12-23 | 2015-12-23 | Improved machining technology for turning automobile torsion bars |
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| Country | Link |
|---|---|
| CN (1) | CN105364088A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392100A (en) * | 2016-11-08 | 2017-02-15 | 湖北三江航天险峰电子信息有限公司 | Rotational part turning machining method capable of compensating shape errors |
| CN106563817A (en) * | 2016-11-08 | 2017-04-19 | 湖北三江航天险峰电子信息有限公司 | Turning method suitable for part volume production and capable of offsetting shape errors |
| CN112605403A (en) * | 2020-12-22 | 2021-04-06 | 北京北方车辆集团有限公司 | Automatic turning process method for high-strength steel slender torsion bar spring |
| CN113695854A (en) * | 2021-09-03 | 2021-11-26 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for improving qualification rate of missile engine pull rod |
| CN115121816A (en) * | 2022-08-22 | 2022-09-30 | 江西江铃底盘股份有限公司 | Method for machining outer circle of cannula type rear axle housing assembly sleeve with eccentric inner hole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357825A (en) * | 2011-09-07 | 2012-02-22 | 池州市邦鼐机电科技有限公司 | Clamping device for processing slender axle top hole |
| US20130029567A1 (en) * | 2011-07-28 | 2013-01-31 | Hessbrueggen Norbert | Machining apparatus |
| CN103894799A (en) * | 2014-04-01 | 2014-07-02 | 安庆市吉安汽车零件锻轧有限公司 | Shaft workpiece machining technique |
| CN104625608A (en) * | 2014-12-09 | 2015-05-20 | 叶勤 | Long and thin flat shaft machining method |
-
2015
- 2015-12-23 CN CN201510977171.4A patent/CN105364088A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130029567A1 (en) * | 2011-07-28 | 2013-01-31 | Hessbrueggen Norbert | Machining apparatus |
| CN102357825A (en) * | 2011-09-07 | 2012-02-22 | 池州市邦鼐机电科技有限公司 | Clamping device for processing slender axle top hole |
| CN103894799A (en) * | 2014-04-01 | 2014-07-02 | 安庆市吉安汽车零件锻轧有限公司 | Shaft workpiece machining technique |
| CN104625608A (en) * | 2014-12-09 | 2015-05-20 | 叶勤 | Long and thin flat shaft machining method |
Non-Patent Citations (2)
| Title |
|---|
| 张国升: "《车削技术与技能》", 30 June 2015 * |
| 张继媛等: "《零件的普通机械加工》", 31 January 2013 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392100A (en) * | 2016-11-08 | 2017-02-15 | 湖北三江航天险峰电子信息有限公司 | Rotational part turning machining method capable of compensating shape errors |
| CN106563817A (en) * | 2016-11-08 | 2017-04-19 | 湖北三江航天险峰电子信息有限公司 | Turning method suitable for part volume production and capable of offsetting shape errors |
| CN112605403A (en) * | 2020-12-22 | 2021-04-06 | 北京北方车辆集团有限公司 | Automatic turning process method for high-strength steel slender torsion bar spring |
| CN113695854A (en) * | 2021-09-03 | 2021-11-26 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for improving qualification rate of missile engine pull rod |
| CN115121816A (en) * | 2022-08-22 | 2022-09-30 | 江西江铃底盘股份有限公司 | Method for machining outer circle of cannula type rear axle housing assembly sleeve with eccentric inner hole |
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Application publication date: 20160302 |