CN102909583A - 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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- CN102909583A CN102909583A CN2011102238082A CN201110223808A CN102909583A CN 102909583 A CN102909583 A CN 102909583A CN 2011102238082 A CN2011102238082 A CN 2011102238082A CN 201110223808 A CN201110223808 A CN 201110223808A CN 102909583 A CN102909583 A CN 102909583A
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- cylinder block
- cylinder body
- air cylinder
- main shaft
- shaft hole
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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 the 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
The 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.Will guarantee that at first 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 the process is subjected to the problem of top gem of a girdle-pendant reamer diamond stick crimp; Its less important cylinder block spindle hole that prevents clamps distortion, generally all adopt the clamping mode that clamps at the cylinder block end face during engine cylinder block top gem of a girdle-pendant hinge spindle hole, reason owing to the engine block structure rigidity, during the clamping cylinder body because being subjected to the clamping force effect, the cylinder block spindle hole all can produce clamping distortion to a certain degree, after cylinder block spindle hole top gem of a girdle-pendant hinge processes and unclamps clamping like this, the cylinder block spindle hole will restore to the original state because of resilient force, therefore can't 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 that provides in order to address the above problem, locating piece is installed hydraulic cylinder in the bottom surface of clamping cylinder block, it is exerted pressure to the cylinder block both sides, thereby reduce the clamping distortion of cylinder block spindle hole, and then reach the purpose that improves cylinder block top gem of a girdle-pendant hinge spindle hole cylindricity.This method is simple to operate, effect is remarkable, the cylindricity of energy Effective Raise 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 may further comprise the steps:
The first step, on two bottom surface locating pieces of clamping cylinder block, along the length direction of bottom surface locating piece hydraulic cylinder more than two pairs is installed evenly, 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 is connected with the fixture block vertical with piston rod towards the outside of bottom surface locating piece in the end of this piston rod;
Second step with the both sides of cylinder block bottom corresponding above-mentioned two bottom surface locating pieces and being placed on this bottom surface locating piece respectively, is adjusted the end face clamp that is positioned at the cylinder block top it is fixed on cylinder block on the locating piece of bottom surface;
The 3rd step, adjust synchronously all hydraulic cylinders by choke valve, make the fixture block of piston rod end be pressed on the outer surface of cylinder block two bottom sides, detect again the clamping deflection in cylinder block spindle hole aperture with inside dial indicator, thereby readjust the clamping force that hydraulic cylinder is adjusted the cylinder block two bottom sides according to the size of this deflection;
The 4th step repeated for the 3rd step until the clamping deflection in cylinder block spindle hole aperture reaches the design accuracy requirement, started the spindle hole of lathe top gem of a girdle-pendant hinge cylinder block again.
As further specifying of such scheme:
Preferably, the described logarithm that is installed in the hydraulic cylinder on the locating piece of bottom surface is 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 the 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 the cylinder physical efficiency firmly is fixed on the lathe, and can effectively improve the cylindricity of top gem of a girdle-pendant hinge spindle hole.
Description of drawings
Fig. 1 is the cylinder block clamping schematic diagram that adopts the method for the invention;
Fig. 2 is the schematic top plan view that adopts after the method for the invention places cylinder block.
Description of reference numerals:
The 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 subjected to the restriction of the specific embodiment.
Fig. 1 and Fig. 2 are respectively the schematic top plan view after adopting the cylinder block clamping schematic diagram of the method for the invention and placing cylinder block 1, as shown in FIG., this cylinder block 1 is the cylinder block 1 of four cylinder engine, with before cylinder block 1 clamping is to the lathe, the hydraulic cylinder that four same sizes are installed respectively on two bottom surface locating pieces 3 of cylinder block 1 need to placed, and the hydraulic cylinder on two bottom surface locating pieces 3 is corresponding one by one.Be provided with the hole vertical with its length direction at two bottom surface locating pieces 3, hydraulic cylinder body 5 is installed in these holes, and make piston rod 6 towards the outside of bottom surface locating piece 3, be connected with perpendicular fixture block 7 in the end of piston rod 6, in order to clamping cylinder body 1 two bottom sides outer surface; After installing hydraulic cylinder, with the both sides of cylinder block 1 bottom corresponding above-mentioned two bottom surface locating pieces 3 and 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 the bottom surface locating piece 3, then adjust synchronously all hydraulic cylinders by 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, detect again the clamping deflection in spindle hole 2 apertures with inside dial indicator, thereby readjust the clamping force that hydraulic cylinder is adjusted cylinder block 1 two bottom sides according to the size of this deflection, and then detect the clamping deflection in spindle hole 2 apertures with inside dial indicator, repeat above-mentioned steps until the clamping deflection in spindle hole 2 apertures reaches the 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.
Only for one of preferred embodiment of the present invention, can not limit to the present invention with this shown in the above embodiment of the present invention and the accompanying drawing, under the condition that does not break away from 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, may further comprise the steps:
The first step, on two bottom surface locating pieces of clamping cylinder block, along the length direction of bottom surface locating piece hydraulic cylinder more than two pairs is installed evenly, 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 is connected with the fixture block vertical with piston rod towards the outside of bottom surface locating piece in the end of this piston rod;
Second step with the both sides of cylinder block bottom corresponding above-mentioned two bottom surface locating pieces and being placed on this bottom surface locating piece respectively, is adjusted the end face clamp that is positioned at the cylinder block top it is fixed on cylinder block on the locating piece of bottom surface;
The 3rd step, adjust synchronously all hydraulic cylinders by choke valve, make the fixture block of piston rod end be pressed on the outer surface of cylinder block two bottom sides, detect again the clamping deflection in cylinder block spindle hole aperture with inside dial indicator, thereby readjust the clamping force that hydraulic cylinder is adjusted the cylinder block two bottom sides according to the size of this deflection;
The 4th step repeated for the 3rd step until the clamping deflection in cylinder block spindle hole aperture reaches the design accuracy requirement, started the spindle hole of lathe top gem of a girdle-pendant hinge cylinder block again.
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, the described logarithm that is installed in the hydraulic cylinder on the locating piece of bottom surface is 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 true CN102909583A (en) | 2013-02-06 |
| CN102909583B 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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Cited By (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 |
| CN108571942A (en) * | 2018-06-29 | 2018-09-25 | 广西玉柴机器股份有限公司 | A kind of cylinder sleeve of engine cylindricity detection device |
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| 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 |
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Cited By (3)
| 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 |
| CN108571942A (en) * | 2018-06-29 | 2018-09-25 | 广西玉柴机器股份有限公司 | A kind of cylinder sleeve of engine cylindricity detection device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102909583B (en) | 2014-11-19 |
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