CN102909583B - Method for improving cylindricity of lapping hinge main shaft hole of engine air cylinder body - Google Patents
Method for improving cylindricity of lapping hinge main shaft hole of engine air cylinder body Download PDFInfo
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- CN102909583B CN102909583B CN201110223808.2A CN201110223808A CN102909583B CN 102909583 B CN102909583 B CN 102909583B CN 201110223808 A CN201110223808 A CN 201110223808A CN 102909583 B CN102909583 B CN 102909583B
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Abstract
The invention discloses a method for improving cylindricity of a lapping hinge main shaft hole of an engine air cylinder body, and the method is characterized in that a hydraulic cylinder is installed on a bottom positioning block for installing the air cylinder body, the end part of a piston rod tightly presses the two outer side surfaces of the bottom of the air cylinder body, the clamping deformation volume of the aperture of the main shaft hole of the air cylinder body is detected by utilizing an inner diameter dial indicator, the hydraulic cylinder is adjusted again according to the deformation volume so as to adjust the clamping force on two sides of the bottom of the air cylinder body until the clamping deformation volume of the aperture of the main shaft hole of the air cylinder body meets the design precision requirement, and then a machine tool is used for perforating the main shaft hole of the air cylinder body. According to the method, the hydraulic cylinder is installed on the bottom positioning block for installing the air cylinder body so as to apply pressure onto two sides of the air cylinder body, so that the clamping deformation of the main shaft hole of the air cylinder body is reduced, and the purpose for improving the cylindricity of the main shaft hole of the air cylinder body can be realized. The method is simple to operate, remarkable in effect and capable of effectively improving the cylindricity of the main shaft hole of the air cylinder body.
Description
Technical field
The present invention relates to engine mechanical technical field, relate in particular a kind of method that improves engine cylinder block top gem of a girdle-pendant hinge spindle hole cylindricity.
Background technology
Engine cylinder block spindle hole generally all adopts the method processing of boring-right boring-top gem of a girdle-pendant hinge.Cylinder block spindle hole requirement on machining accuracy is higher, especially cylinder block spindle hole cylindricity, axiality are required very high, so require very high to last top gem of a girdle-pendant hinge manufacturing procedure.First will guarantee that top gem of a girdle-pendant reamer has higher circularity, rigidity, the diamond stick of top gem of a girdle-pendant reamer is comparatively sharp keen, prevents that cylinder block spindle hole in process is subject to the problem of top gem of a girdle-pendant reamer diamond stick crimp; It is less important prevents that cylinder block spindle hole from clamping distortion, during engine cylinder block top gem of a girdle-pendant hinge spindle hole, generally all adopt the clamping mode clamping at cylinder block end face, reason due to engine block structure rigidity, during clamping cylinder body because being subject to clamping force effect, cylinder block spindle hole all can produce clamping distortion to a certain degree, cylinder block spindle hole top gem of a girdle-pendant hinge processes and unclamps after clamping like this, cylinder block spindle hole will restore to the original state because of resilient force, therefore cannot guarantee the required precision of engine cylinder block spindle hole cylindricity.
Summary of the invention
The present invention is exactly a kind of method that improves engine cylinder block top gem of a girdle-pendant hinge spindle hole cylindricity providing in order to address the above problem, on the locating piece of the bottom surface of clamping cylinder block, hydraulic cylinder is installed, it is exerted pressure to cylinder block both sides, thereby reduce the clamping distortion of cylinder block spindle hole, and then reach the object that improves cylinder block top gem of a girdle-pendant hinge spindle hole cylindricity.This method is simple to operate, effect is remarkable, can effectively improve the cylindricity of cylinder block spindle hole.
The present invention adopts following technical scheme to realize above-mentioned purpose: a kind of method that improves engine cylinder block top gem of a girdle-pendant hinge spindle hole cylindricity, it is characterized in that, and comprise the following steps:
The first step, length direction along bottom surface locating piece on two bottom surface locating pieces of clamping cylinder block is evenly installed more than two pairs hydraulic cylinders, the cylinder body of this hydraulic cylinder is vertical with the length direction of bottom surface locating piece, and the piston rod of this hydraulic cylinder, towards the outside of bottom surface locating piece, is connected with the fixture block vertical with piston rod in the end of this piston rod;
Second step, by the both sides of cylinder block bottom corresponding above-mentioned two bottom surface locating pieces being placed on this bottom surface locating piece respectively, adjusts the end face clamp that is positioned at cylinder block top it is fixed on cylinder block on the locating piece of bottom surface;
The 3rd step, by all hydraulic cylinders of the synchronous adjustment of choke valve, make the fixture block of piston rod end be pressed on the outer surface of cylinder block two bottom sides, with inside dial indicator, detect again the clamping deflection in cylinder block spindle hole aperture, thereby readjust according to the size of this deflection the clamping force that hydraulic cylinder is adjusted cylinder block two bottom sides;
The 4th step, repeats the 3rd step until the clamping deflection in cylinder block spindle hole aperture reaches design accuracy requirement, then starts the spindle hole of lathe top gem of a girdle-pendant hinge cylinder block.
As further illustrating of such scheme:
Preferably, described in, be arranged on the logarithm of the hydraulic cylinder on the locating piece of bottom surface identical with the cylinder number of cylinder block.
The beneficial effect that the present invention adopts above technical scheme to reach is: method of the present invention adopts hydraulic cylinder to press cylinder block both sides, in order to the suffered clamping force of Balance Air cylinder body, reduce the clamping deflection of cylinder block spindle hole, thereby guarantee the cylindricity of top gem of a girdle-pendant hinge spindle hole, this method not only simple and practical, guaranteed that cylinder physical efficiency is firmly fixed on lathe, and can effectively improve the cylindricity of top gem of a girdle-pendant hinge spindle hole.
Accompanying drawing explanation
Fig. 1 is the cylinder block clamping schematic diagram that adopts the method for the invention;
Fig. 2 adopts the method for the invention to place the schematic top plan view after cylinder block.
Description of reference numerals:
1-cylinder block, 2-spindle hole, 3-bottom surface locating piece, 4-end face clamp, 5-hydraulic cylinder body, 6-piston rod, 7-fixture block.
The specific embodiment
For further setting forth 26S Proteasome Structure and Function of the present invention, below in conjunction with accompanying drawing and preferred embodiment, the present invention is elaborated, but be to be understood that protection scope of the present invention is not subject to the restriction of the specific embodiment.
Fig. 1 and Fig. 2 adopt the cylinder block clamping schematic diagram of the method for the invention and place the schematic top plan view after cylinder block 1, as shown in FIG., the cylinder block 1 that this cylinder block 1 is four cylinder engine, by cylinder block 1 clamping to before on lathe, the hydraulic cylinder of four same sizes need to be installed respectively on two bottom surface locating pieces 3 placing cylinder block 1, and the hydraulic cylinder on two bottom surface locating pieces 3 is corresponding one by one.On two bottom surface locating pieces 3, be provided with the hole vertical with its length direction, hydraulic cylinder body 5 is arranged in these holes, and make piston rod 6 towards the outside of bottom surface locating piece 3, in the end of piston rod 6, be connected with perpendicular fixture block 7, in order to clamping cylinder body 1 two bottom sides outer surface, install after hydraulic cylinder, by the both sides of cylinder block 1 bottom corresponding above-mentioned two bottom surface locating pieces 3 being placed on this bottom surface locating piece 3 respectively, the end face clamp 4 that adjustment is positioned at cylinder block 1 top makes it that cylinder block 1 is fixed on bottom surface locating piece 3, then by all hydraulic cylinders of the synchronous adjustment of choke valve, make the fixture block 7 of piston rod 6 ends be pressed on the outer surface of cylinder block 1 two bottom sides, with inside dial indicator, detect again the clamping deflection in spindle hole 2 apertures, thereby readjust according to the size of this deflection the clamping force that hydraulic cylinder is adjusted cylinder block 1 two bottom sides, and then with inside dial indicator, detect the clamping deflection in spindle hole 2 apertures, repeat above-mentioned steps until the clamping deflection in spindle hole 2 apertures reaches design accuracy requirement, start again the spindle hole 2 of lathe top gem of a girdle-pendant hinge cylinder block 1, can guarantee like this cylindricity of top gem of a girdle-pendant hinge spindle hole 2.
Shown in the above embodiment of the present invention and accompanying drawing, only for one of preferred embodiment of the present invention, can not limit to the present invention with this, not depart under the condition of marrow of the present invention, any change that those skilled in the art do, all belongs to protection scope of the present invention.
Claims (2)
1. a method that improves engine cylinder block top gem of a girdle-pendant hinge spindle hole cylindricity, is characterized in that, comprises the following steps:
The first step, length direction along bottom surface locating piece on two bottom surface locating pieces of clamping cylinder block is evenly installed more than two pairs hydraulic cylinders, every pair of hydraulic cylinder corresponding setting one by one, the cylinder body of this hydraulic cylinder is vertical with the length direction of bottom surface locating piece, and the piston rod of this hydraulic cylinder, towards the outside of bottom surface locating piece, is connected with the fixture block vertical with piston rod in the end of this piston rod;
Second step, by the both sides of cylinder block bottom corresponding above-mentioned two bottom surface locating pieces being placed on this bottom surface locating piece respectively, adjusts the end face clamp that is positioned at cylinder block top it is fixed on cylinder block on the locating piece of bottom surface;
The 3rd step, by all hydraulic cylinders of the synchronous adjustment of choke valve, make the fixture block of piston rod end be pressed on the outer surface of cylinder block two bottom sides, with inside dial indicator, detect again the clamping deflection in cylinder block spindle hole aperture, thereby readjust according to the size of this deflection the clamping force that hydraulic cylinder is adjusted cylinder block two bottom sides;
The 4th step, repeats the 3rd step until the clamping deflection in cylinder block spindle hole aperture reaches design accuracy requirement, then starts the spindle hole of lathe top gem of a girdle-pendant hinge cylinder block.
2. the method for the raising engine cylinder block top gem of a girdle-pendant according to claim 1 hinge spindle hole cylindricity, is characterized in that, described in to be arranged on the logarithm of the hydraulic cylinder on the locating piece of bottom surface identical with the cylinder number of cylinder block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223808.2A CN102909583B (en) | 2011-08-05 | 2011-08-05 | Method for improving cylindricity of lapping hinge main shaft hole of engine air cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223808.2A CN102909583B (en) | 2011-08-05 | 2011-08-05 | Method for improving cylindricity of lapping hinge main shaft hole of engine air cylinder body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102909583A CN102909583A (en) | 2013-02-06 |
| CN102909583B true CN102909583B (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110223808.2A Active CN102909583B (en) | 2011-08-05 | 2011-08-05 | Method for improving cylindricity of lapping hinge main shaft hole of engine air cylinder body |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735570A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | A kind of method for fine finishing and its servicing unit of cylinder block oil pump idle pulley axis hole |
| CN108571942B (en) * | 2018-06-29 | 2023-09-15 | 广西玉柴机器股份有限公司 | Cylindricity detection device for engine cylinder sleeve |
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| CN1762650A (en) * | 2005-11-15 | 2006-04-26 | 潍柴动力股份有限公司 | Diesel cylinder body positioning method |
| CN1762651A (en) * | 2005-11-15 | 2006-04-26 | 潍柴动力股份有限公司 | Diesel engine crankcase positioning fixture and its positioning method |
| CN201136101Y (en) * | 2008-01-11 | 2008-10-22 | 广西玉柴机器股份有限公司 | Machining clamp for first holes of cylinder head of diesel engine |
| CN101568404A (en) * | 2007-03-27 | 2009-10-28 | 丰田自动车株式会社 | Machining tool and machining method of cylinder block |
| CN101578444A (en) * | 2007-02-22 | 2009-11-11 | 丰田自动车株式会社 | Working method and working jig for cylinder block, and cylinder block |
| CN201707030U (en) * | 2010-06-18 | 2011-01-12 | 安徽江淮汽车股份有限公司 | Auxiliary device for testing deformation of engine cylinder bore |
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2011
- 2011-08-05 CN CN201110223808.2A patent/CN102909583B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0168687A2 (en) * | 1984-06-29 | 1986-01-22 | Inventio Ag | Method and device for holding a work piece on a movable pallet |
| US4697800A (en) * | 1985-10-19 | 1987-10-06 | Optima Spanntechnik Gmbh | Clamping device |
| DE4120468A1 (en) * | 1990-08-03 | 1992-02-06 | Tiefenbach Gmbh | Clamping workpieces to table of machine tool - involves clamp jaws actuated by hydraulic cylinder connected to pump |
| CN1174933A (en) * | 1996-08-22 | 1998-03-04 | 三菱自动车工业株式会社 | Cylinder cap device for internal combustion engine |
| CN1407314A (en) * | 2001-08-29 | 2003-04-02 | 株式会社东京精密 | Inner diameter measurement method and device |
| DE202004009339U1 (en) * | 2004-06-12 | 2004-10-28 | Hohenstein Vorrichtungsbau Und Spannsysteme Gmbh | Hydraulic clamping system for machine tools has drive module behind clamping wall or integrated in clamping body or baseplate |
| CN1762650A (en) * | 2005-11-15 | 2006-04-26 | 潍柴动力股份有限公司 | Diesel cylinder body positioning method |
| CN1762651A (en) * | 2005-11-15 | 2006-04-26 | 潍柴动力股份有限公司 | Diesel engine crankcase positioning fixture and its positioning method |
| CN101578444A (en) * | 2007-02-22 | 2009-11-11 | 丰田自动车株式会社 | Working method and working jig for cylinder block, and cylinder block |
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| CN201136101Y (en) * | 2008-01-11 | 2008-10-22 | 广西玉柴机器股份有限公司 | Machining clamp for first holes of cylinder head of diesel engine |
| CN201707030U (en) * | 2010-06-18 | 2011-01-12 | 安徽江淮汽车股份有限公司 | Auxiliary device for testing deformation of engine cylinder bore |
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| CN102909583A (en) | 2013-02-06 |
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