CN103008975A - Processing method for fabrication holes in bottom surface and top surface of cylinder cover - Google Patents
Processing method for fabrication holes in bottom surface and top surface of cylinder cover Download PDFInfo
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- CN103008975A CN103008975A CN2012104909955A CN201210490995A CN103008975A CN 103008975 A CN103008975 A CN 103008975A CN 2012104909955 A CN2012104909955 A CN 2012104909955A CN 201210490995 A CN201210490995 A CN 201210490995A CN 103008975 A CN103008975 A CN 103008975A
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a processing method for fabrication holes in the bottom surface and the top surface of a cylinder cover, which comprises the following steps: adopting a double-exchange workbench with a spindle belt for water outlet in the center to horizontally process a center in high precision; adopting a bottom surface, an inlet valve pore and a blank positioning point to perform positioning; adopting an inner-cooling drill bit to drill two Phi 23 holes respectively in the top surface and the bottom surface of the cylinder cover; and adopting a microcartridge to bore fabrication positioning holes. The method provided by the invention is adopted to process the fabrication positioning holes in the top surface and the bottom surface of the cylinder cover, so that the precision in the hole position is improved, the surface of the cylinder cover is prevented from being scratched, and the cost for conversion operation of processing is saved.
Description
Technical field
The present invention relates to end face fabrication hole processing method at the bottom of a kind of cylinder head.
Background technology
Cylinder head in cylinder body top, becomes the tip part of diesel engine with bolted, is used for closed cylinder body top, jointly forms airtight cylinder operation space with piston, cylinder body.Cylinder head has pilot hole and the locating hole that assembles with cylinder, and these holes need to process when cylinder head is made.And cylinder caping, bottom hole divide two procedures processing in the prior art, cause the secondary deviations, and the cylinder head surface easily scratches, and increased shunting processing turn the order expense, demand urgently improving.
Summary of the invention
For the problem that prior art exists, the object of the invention is to propose end face fabrication hole processing method at the bottom of a kind of cylinder head, by enforcement of the present invention, improving the hole is positional precision, avoids the cylinder head surface tear, that has saved processing turns the order expense.
For reaching this purpose, the present invention by the following technical solutions:
End face fabrication hole processing method at the bottom of a kind of cylinder head may further comprise the steps:
Adopt the double change-table high accuracy horizontal Machining centers of main shaft band central water outlet;
Adopt bottom surface, inlet valve pore and blank anchor point location;
Cold drill bit gets out two from top surface of cylinder cover, bottom surface respectively in adopting
The hole;
Bore technology hole with micrometer adjustement boring tool.
Preferably, positioning accuracy≤3 micron, worktable rotary precision≤5 second.
Preferably, the enterprising valve pore of anchor clamps alignment pin is tapering elastic telescopic pin.
Preferably, described two
Super half degree of depth of every the drilling in hole is connected.
Compared with prior art, the present invention has following beneficial effect:
Method processing cylinder caping of the present invention, bottom surface technology hole, having improved the hole is positional precision, has avoided the cylinder head surface tear, that has saved processing turns the order expense.
The invention accompanying drawing
Fig. 1 is end face fabrication hole processing front view at the bottom of a kind of cylinder head of providing of the embodiment of the invention 1;
Fig. 2 is end face fabrication hole processing cutaway view at the bottom of a kind of cylinder head of providing of the embodiment of the invention 1;
Fig. 3 is end face fabrication hole processing method flow chart at the bottom of a kind of cylinder head of providing of the embodiment of the invention 2.
Drawing reference numeral:
1, inlet valve pore; 2, blank anchor point; 3, end face; 4, bottom surface.
The specific embodiment
The embodiment of the invention 1 provides end face fabrication hole processing method at the bottom of a kind of cylinder head, is applied to the cylinder cap top of Fig. 1 and Fig. 2, the processing of bottom surface technology hole, among the figure 4
The hole is respectively end face 3, bottom surface 4 technology holes.The method may further comprise the steps as shown in Figure 3:
Step 101 adopts the double change-table high accuracy horizontal Machining centers of main shaft band central water outlet, positioning accuracy≤3 micron, worktable rotary precision≤5 second.
Step 102 adopts bottom surface 4, inlet valve pore 1 and blank anchor point 2 location, and the enterprising valve pore of anchor clamps alignment pin is tapering elastic telescopic pin, guarantees the pore accurate positioning, from the end face clamping work pieces.
Step 103, cold drill bit gets out two from top surface of cylinder cover 3, bottom surface 4 respectively in adopting
The hole, every slightly super half degree of depth of drilling is connected.
Step 104 bores technology hole with micrometer adjustement boring tool.
The embodiment of the invention has the following advantages:
1, adopt the horizontal Machining centers with rotary table, so that top, bottom surface technology hole process people having a common goal, eliminated the secondary deviations of in the past shunting processing.
2, adopted the method for boring technology hole, make its positional precision expanded than in the past, cut with scissors improved a lot.
3, make bottom surface technology hole positional precision reach ± 0.03, the end face technology hole with respect to over against bottom surface technology hole commercial affairs axiality reach
Can adopt the end face technology hole to replace the in the past bottom surface technology hole of usefulness fully, thereby make the continuous processing of back cylinder cover can adopt plane and two pits location and the enough anchor clamps of rigidity of end face, overcome in the past because of top, the very large end face technology hole of not establishing of bottom surface technology hole coaxiality deviation, cylinder cap following process operation does not have the end face technology hole to use, stroke can only adopt the plane and two pits location of bottom surface, the defective workmanship that is forced to adopt the support type anchor clamps of rigidity deficiency to process, thus the quality of following process guaranteed.
4, other manufacturing procedure of cylinder cap is moved to this procedure, can realize " processing island " fully, eliminate the surface tear defective that the changing of workpieces order is brought, and save and turn the order expense.
The above; only be the better specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (4)
1. end face fabrication hole processing method at the bottom of the cylinder head is characterized in that, may further comprise the steps:
Adopt the double change-table high accuracy horizontal Machining centers of main shaft band central water outlet;
Adopt bottom surface, inlet valve pore and blank anchor point location;
Cold drill bit gets out two from top surface of cylinder cover, bottom surface respectively in adopting
The hole;
Bore technology hole with micrometer adjustement boring tool.
2. end face fabrication hole processing method at the bottom of the cylinder head according to claim 1 is characterized in that, positioning accuracy≤3 micron, worktable rotary precision≤5 second.
3. end face fabrication hole processing method at the bottom of the cylinder head according to claim 1 is characterized in that, the enterprising valve pore of anchor clamps alignment pin is tapering elastic telescopic pin.
4. end face fabrication hole processing method at the bottom of the cylinder head according to claim 1 is characterized in that, described two
Super half degree of depth of every the drilling in hole is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210490995.5A CN103008975B (en) | 2012-11-27 | 2012-11-27 | End face fabrication hole processing method at the bottom of a kind of cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210490995.5A CN103008975B (en) | 2012-11-27 | 2012-11-27 | End face fabrication hole processing method at the bottom of a kind of cylinder head |
Publications (2)
| Publication Number | Publication Date |
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| CN103008975A true CN103008975A (en) | 2013-04-03 |
| CN103008975B CN103008975B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210490995.5A Active CN103008975B (en) | 2012-11-27 | 2012-11-27 | End face fabrication hole processing method at the bottom of a kind of cylinder head |
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| CN (1) | CN103008975B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433520A (en) * | 2013-09-11 | 2013-12-11 | 上海中船三井造船柴油机有限公司 | Processing method for inner oblique holes of cylinder sleeve holes of diesel engine cylinder body |
| CN104002097A (en) * | 2014-05-27 | 2014-08-27 | 安徽蓝德集团股份有限公司 | Machining center production technology for machining diesel engine cylinder cover face hole |
| CN104028948A (en) * | 2014-06-09 | 2014-09-10 | 广西玉柴机器股份有限公司 | Processing method for air valve guide pipe bottom hole |
| CN105312605A (en) * | 2015-11-27 | 2016-02-10 | 重庆渝记涵诚机械制造有限公司 | Engine bracket bottom drilling method |
| CN106695248A (en) * | 2015-08-03 | 2017-05-24 | 昆山肯达机械有限公司 | Method for manufacturing cylinder head of diesel engine |
| CN111331167A (en) * | 2019-12-17 | 2020-06-26 | 江西洪都航空工业集团有限责任公司 | Hole machining method based on virtual size of reverse side and special drill jig |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433520A (en) * | 2013-09-11 | 2013-12-11 | 上海中船三井造船柴油机有限公司 | Processing method for inner oblique holes of cylinder sleeve holes of diesel engine cylinder body |
| CN104002097A (en) * | 2014-05-27 | 2014-08-27 | 安徽蓝德集团股份有限公司 | Machining center production technology for machining diesel engine cylinder cover face hole |
| CN104028948A (en) * | 2014-06-09 | 2014-09-10 | 广西玉柴机器股份有限公司 | Processing method for air valve guide pipe bottom hole |
| CN106695248A (en) * | 2015-08-03 | 2017-05-24 | 昆山肯达机械有限公司 | Method for manufacturing cylinder head of diesel engine |
| CN105312605A (en) * | 2015-11-27 | 2016-02-10 | 重庆渝记涵诚机械制造有限公司 | Engine bracket bottom drilling method |
| CN111331167A (en) * | 2019-12-17 | 2020-06-26 | 江西洪都航空工业集团有限责任公司 | Hole machining method based on virtual size of reverse side and special drill jig |
| CN111331167B (en) * | 2019-12-17 | 2021-06-04 | 江西洪都航空工业集团有限责任公司 | Hole machining method based on virtual size of reverse side and special drill jig |
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| Publication number | Publication date |
|---|---|
| CN103008975B (en) | 2016-05-11 |
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