CN105436997A - Machining process for large sheet parts - Google Patents
Machining process for large sheet parts Download PDFInfo
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- CN105436997A CN105436997A CN201410422972.XA CN201410422972A CN105436997A CN 105436997 A CN105436997 A CN 105436997A CN 201410422972 A CN201410422972 A CN 201410422972A CN 105436997 A CN105436997 A CN 105436997A
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Abstract
The invention aims at solving the problem that large sheet parts are prone to deformation in grinding. Magnetic conduction blocks are used for reasonably distributing magnetic force, so that the influence of local high magnetic force on the flatness of the sheet parts is reduced; a magnetic conduction body is used for conducting magnetic force of a workbench to a workpiece, so that the workpiece is attracted and protected against deformation, and the original state of the workpiece is kept, namely the magnitude and the direction of internal stress of the workpiece are not changed, and the workpiece is only subjected to the action of radial and normal cutting force of a machine tool grinding wheel. Process steps of machining of large sheets are simplified, machining time is shortened by about 30%, the machining cost is lowered by about 25%, the part rejection rate is decreased by 2.0%, the personnel utilization rate is increased by 5%, and the flatness and the parallelism of the large parallel sheets are improved.
Description
Technical field
The invention belongs to the processing technology of large-scale parallel sheet part, especially the processing technology of large-scale parallel sheet part made of Fe-Co-Ni material.
Background technology
Present Domestic is outer to be processed the method that the correction of super large, ultra-thin quenching part deflection all adopts artificial external force or pressing machine to correct.Concrete operation method is: 1. ultra-thin, the super large sheet material of distortion are carried out preliminary corrections by artificial or machinery, and the method can only probably correct, and different artificial or forcing press parameters has different effect, very unstable.2. be placed on by the sheet part of preliminary corrections on grinding machine work magnetic and process, different grinding machines, magnetic platform is also not quite similar.3. inhale after magnetic, the effect of magnetic force again by absorption of workpieces on work magnetic platform, because of the size of magnetic force, new distortion can be there is in workpiece, through double-side cutting processing repeatedly and the effect of internal stress, workpiece can become very unstable, and after processing, part has weathering physical phenomenon.For above technique and part internal stress mutation analysis, certainly will to find a kind of more quick, processing problems that stable, working (machining) efficiency is high method solves super large, ultra-thin quenching distortion part, the technological transformation of its processing technology and to update be inexorable trend.
Summary of the invention
Of the present inventionly be intended to solve large-scale sheet part yielding problem in grinding, simplify process, reduce production cost, extend the service life of part, improve the flatness of sheet part.
For achieving the above object, technical scheme of the present invention is as follows:
A processing technology for large-scale sheet part, is characterized in that: comprise the following steps:
A. first pending workpiece is heat-treated, remove stress;
B. by the suction magnetic force of the magnetic force of lathe magnetic platform transfer for needing during grinding: suction magnetic force size is controlled in the scope of the 30-40% of lathe magnetic force, guarantee workpiece is indeformable, keep the previous status of the front workpiece of processing, by calculating magnetic data, symmetrically on the workbench of lathe put magnetic inductive block, workpiece concave surface is placed on magnetic inductive block upward;
C. deep processing is carried out to workpiece: repeatedly grinding is carried out to the workpiece be placed on magnetic inductive block, each grinding allowance controls between 20%-30%, finally need the surplus retaining size 0.03-0.05mm, part concave surface must be kept upward in process, and only need mill out 90%-95% datum level;
Wherein: in step B, the magnetic force that magnetic conductor imports is greater than emery wheel radial cutting component.
In step B, described magnetic conductor is made up of copper coin and round iron rod, and the spacing of round iron rod is 0.5-1 times of magnetic platform pole pitch, and copper plate thickness is generally at 25-30mm, and round iron rod light circular diameter controls within φ 5-φ 10.
Increase iron body hexahedron block above workpiece front work magnetic platform in step B, increase the safety coefficient of magnetic conductor magnetic force, avoid workpiece to fly out in process and cause security incident.
Beneficial effect of the present invention is: utilize magnetic inductive block reasonable distribution magnetic force size, reduce local high magnetic force to the impact of the unilateral degree of sheet parts, workbench magnetic force conducts on workpiece by magnetic conductor, workpiece is held and indeformable, to remain stationary state, namely portion changes inner stress of work size and direction, make only by the radial direction of lathe emery wheel and the effect of normal direction cutting force, simplify the processing step of large-scale thin plate processing, process time reduces about about 30%, processing cost about reduces by 25%, part rejection rate declines 2.0%, personnel's utilization rate improves 5%, improve flatness and the depth of parallelism of large-scale parallel thin plate.
Accompanying drawing explanation
Fig. 1 is the state of work when being placed on workbench.
Detailed description of the invention
The invention provides a kind of processing technology of large-scale sheet part, it is characterized in that: comprise the following steps:
A. first pending workpiece is heat-treated, removes stress,
B. by the suction magnetic force of the magnetic force of lathe magnetic platform transfer for needing during grinding: inhale magnetic force size and control in the scope of the 30-40% of lathe magnetic force, guarantee workpiece is indeformable, keep the previous status of the front workpiece of processing, this function is realized by magnetic inductive block, by calculating magnetic data, symmetrically on the workbench 1 of lathe put magnetic inductive block 2, workpiece 3 concave surface is placed on magnetic inductive block 2 upward;
C. deep processing is carried out to workpiece: repeatedly grinding is carried out to workpiece, each grinding allowance controls between 20%-30%, finally need the surplus retaining size 0.03-0.05mm, part concave surface must be kept upward in process, and only need mill out 90%-95% datum level.
Wherein: in step B, the magnetic force that magnetic conductor imports is greater than emery wheel radial cutting component, and emery wheel is zero relative to the reaction force of the normal direction cutting force of workpiece pars intermedia, and contact area improves 30%.
In step B, described magnetic conductor is made up of copper coin and round iron rod, and the spacing of round iron rod is 0.5-1 times of magnetic platform pole pitch, and copper plate thickness is generally at 25-30mm, and round iron rod light circular diameter controls within φ 5-φ 10.
Increase iron body hexahedron block above workpiece front work magnetic platform in step B, increase the safety coefficient of magnetic conductor magnetic force, avoid workpiece to fly out in process and cause security incident.
Beneficial effect of the present invention is: utilize magnetic inductive block reasonable distribution magnetic force size, reduce local high magnetic force to the impact of the unilateral degree of sheet parts, workbench magnetic force conducts on workpiece by magnetic conductor, workpiece is held and indeformable, to remain stationary state, namely portion changes inner stress of work size and direction, make only by the radial direction of lathe emery wheel and the effect of normal direction cutting force, simplify the processing step of large-scale thin plate processing, process time reduces about about 30%, processing cost about reduces by 25%, part rejection rate declines 2.0%, personnel's utilization rate improves 5%, improve flatness and the depth of parallelism of large-scale parallel thin plate.
Claims (4)
1. a processing technology for large-scale sheet part, is characterized in that: comprise the following steps:
A. first pending workpiece is heat-treated, remove stress;
B. by the suction magnetic force of the magnetic force of lathe magnetic platform transfer for needing during grinding: inhale magnetic force size and control in the scope of the 30-40% of lathe magnetic force, guarantee workpiece is indeformable, keep the previous status of the front workpiece of processing, symmetrically on the workbench of lathe put magnetic inductive block, workpiece concave surface is placed on magnetic inductive block upward;
C. deep processing is carried out to workpiece: repeatedly grinding is carried out to workpiece, each grinding allowance controls between 20%-30%, finally need the surplus retaining size 0.03-0.05mm, part concave surface must be kept upward in process, and only need mill out 90%-95% datum level.
2. the processing technology of a kind of large-scale sheet part according to claim 1, it is characterized in that, in described step B, the magnetic force that magnetic conductor imports is greater than emery wheel radial cutting component, and emery wheel is zero relative to the reaction force of the normal direction cutting force of workpiece pars intermedia.
3. the processing technology of a kind of large-scale sheet part according to claim 1 and 2, it is characterized in that, in described step B, magnetic conductor is made up of copper coin and round iron rod, the spacing of round iron rod is 0.5-1 times of magnetic platform pole pitch, copper plate thickness is 25-30mm, and round iron rod light circular diameter controls within φ 5-φ 10.
4. the processing technology of a kind of large-scale sheet part according to claim 1, is characterized in that, in step B, increases iron body hexahedron block above workpiece front work magnetic platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422972.XA CN105436997A (en) | 2014-08-26 | 2014-08-26 | Machining process for large sheet parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422972.XA CN105436997A (en) | 2014-08-26 | 2014-08-26 | Machining process for large sheet parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105436997A true CN105436997A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410422972.XA Pending CN105436997A (en) | 2014-08-26 | 2014-08-26 | Machining process for large sheet parts |
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| CN (1) | CN105436997A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483166A (en) * | 2018-11-16 | 2019-03-19 | 中国航发西安动力控制科技有限公司 | High-precision metal ultra thin plate parts machining process |
| CN109571153A (en) * | 2018-12-27 | 2019-04-05 | 贵州凯星液力传动机械有限公司 | A kind of method of plate parts flat surface grinding |
| CN113751969A (en) * | 2021-09-08 | 2021-12-07 | 苏州众芯联电子材料有限公司 | Processing technology of large aluminum substrate for LCD and AMOLED equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1067001A (en) * | 1991-05-20 | 1992-12-16 | 中国航空航天工具协会 | Combined magnetic fixture system for surface-grinding machine and machining and testing method thereof |
| CN2700047Y (en) * | 2004-04-30 | 2005-05-18 | 洛阳轴承集团有限公司 | Auxiliary grinding tool for large scale high precision sheet bearing ring |
| CN2719483Y (en) * | 2004-08-16 | 2005-08-24 | 河南安彩高科股份有限公司 | Vertical grinding suspension grinding clamp for mould ring |
| US20080287042A1 (en) * | 2003-05-26 | 2008-11-20 | Kazumasa Ohnishi | Manufacture of lapping board |
| CN201586924U (en) * | 2009-11-06 | 2010-09-22 | 斯帝尔模具(上海)有限公司 | Processing device for hot half die in two-side grinding |
| CN102091977A (en) * | 2010-12-06 | 2011-06-15 | 天津市津兆机电开发有限公司 | Grinding method for ensuring template planeness of high-precision die |
| CN103447940A (en) * | 2012-06-02 | 2013-12-18 | 瑞士达光学(厦门)有限公司 | Substrate positioning and processing method and substrate positioning and processing device |
-
2014
- 2014-08-26 CN CN201410422972.XA patent/CN105436997A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067001A (en) * | 1991-05-20 | 1992-12-16 | 中国航空航天工具协会 | Combined magnetic fixture system for surface-grinding machine and machining and testing method thereof |
| US20080287042A1 (en) * | 2003-05-26 | 2008-11-20 | Kazumasa Ohnishi | Manufacture of lapping board |
| CN2700047Y (en) * | 2004-04-30 | 2005-05-18 | 洛阳轴承集团有限公司 | Auxiliary grinding tool for large scale high precision sheet bearing ring |
| CN2719483Y (en) * | 2004-08-16 | 2005-08-24 | 河南安彩高科股份有限公司 | Vertical grinding suspension grinding clamp for mould ring |
| CN201586924U (en) * | 2009-11-06 | 2010-09-22 | 斯帝尔模具(上海)有限公司 | Processing device for hot half die in two-side grinding |
| CN102091977A (en) * | 2010-12-06 | 2011-06-15 | 天津市津兆机电开发有限公司 | Grinding method for ensuring template planeness of high-precision die |
| CN103447940A (en) * | 2012-06-02 | 2013-12-18 | 瑞士达光学(厦门)有限公司 | Substrate positioning and processing method and substrate positioning and processing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483166A (en) * | 2018-11-16 | 2019-03-19 | 中国航发西安动力控制科技有限公司 | High-precision metal ultra thin plate parts machining process |
| CN109571153A (en) * | 2018-12-27 | 2019-04-05 | 贵州凯星液力传动机械有限公司 | A kind of method of plate parts flat surface grinding |
| CN113751969A (en) * | 2021-09-08 | 2021-12-07 | 苏州众芯联电子材料有限公司 | Processing technology of large aluminum substrate for LCD and AMOLED equipment |
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Application publication date: 20160330 |
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| RJ01 | Rejection of invention patent application after publication |