CN102430896A - Engine cylinder block sand outlet processing technology - Google Patents
Engine cylinder block sand outlet processing technology Download PDFInfo
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- CN102430896A CN102430896A CN2011103244343A CN201110324434A CN102430896A CN 102430896 A CN102430896 A CN 102430896A CN 2011103244343 A CN2011103244343 A CN 2011103244343A CN 201110324434 A CN201110324434 A CN 201110324434A CN 102430896 A CN102430896 A CN 102430896A
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- engine cylinder
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- processing technology
- sand outlet
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- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 239000004576 sand Substances 0.000 title claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005266 casting Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005808 skin problem Effects 0.000 description 1
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Abstract
The invention relates to a processing technology of a sand outlet of an engine cylinder body, and solves the problems of black skin of a fine boring hole and poor roughness of the hole due to the complex processing technology of the sand outlet of the engine cylinder body, long production cycle and inconsistent coaxiality of a rough finish machining hole. The process method comprises the following steps of (1) semi-fine-enlarging front and rear sand outlet holes: controlling the cutting speed of the machine tool to be 200-300m/min, the feed rate to be 0.3-0.4mm/r, the Ra to be 6.3 and the cutting depth to be 2.4-2.2.6 mm; (2) and (4) reaming front and rear sand outlets: controlling the cutting speed of the machine tool to be 200-300m/min, the feed rate to be 0.3-0.4mm/r, the Ra 2.5 and the cutting depth to be 0.30-0.32mm until the sand hole is machined to reach the specified aperture. The invention has simple process, simple and convenient operation, short processing time, low production cost, no hole black skin and satisfactory roughness, and can finish all processing procedures on the same processing machine tool.
Description
Technical field
The utility model relates to a kind of machining, specifically engine cylinder-body clearance hole processing technology.
Background technology
The processing of engine cylinder-body clearance hole is the insoluble technical barrier in workshop always; Existing processing technology comprises that thick expansion-expansion falls-right boring, totally three manufacturing procedures, and wherein thick expansion of expanding can be gone up processing at machining tool (claiming special purpose machine tool again); Right boring then must be carried out by the work in-process heart; Because thick fine finishining is not on a machine tool, used positioning reference is different, and then causes the axiality in thick fine finishining hole inconsistent and right boring hole casting skin occurs; The roughness in hole is poor, does not reach problem generations such as requirement.And Cutter Body Processing with Machining Center technology content is more on the one hand, and the processing beat is long, is the bottleneck of processing beat completely, hopes to avoid as much as possible the processing step of the work in-process heart; What fine boring tool all adopted on the other hand is mechanical clamped cutting tool, 60 needs tool changing of every processing once, it is long not only to have increased production cost and cutter adjustment time, causes the process-cycle long.
Summary of the invention
The objective of the invention is in order to solve the problems of the technologies described above the engine cylinder-body clearance hole processing technology that provide that a kind of technology is simple, easy and simple to handle, the processing beat is short, can accomplish that whole manufacturing procedures, production cost are low, the dark skin of atresia, roughness meets the demands at same machining tool.
Processing technology of the present invention follows these steps to carry out: clearance hole before and after (1) half smart expansion: control lathe cutting speed 200-300m/min, amount of feeding 0.3-0.4mm/r, Ra6.3, cutting depth 2.4-2.2.6mm, preferred cutting speed 200m/min, amount of feeding 0.3mm/r, Ra6.3, working depth 2.6mm; At this moment, should reserve step (2) fraising reservation amount, promptly processing the sand hole aperture size is that predetermined hole diameter deducts fraising reservation amount, and said best fraising reservation amount is 0.5-0.7mm.
(2) clearance hole before and after the hinge: control lathe cutting speed 200-300m/min, amount of feeding 0.3-0.4mm/r, Ra2.5, cutting depth 0.30-0.32mm; Preferred cutting speed 200m/min, amount of feeding 0.3mm/r, Ra2.5 working depth 0.32mm are until processing sand hole aperture to predetermined hole diameter (promptly setting the aperture).
The predetermined hole diameter of said clearance hole is meant the size that needs design perforate aperture, because engine cylinder-body model and sand hole position are different, its aperture size maybe be corresponding different.
Half essence of said step (1) extends to the hinge of step (2) carries out on same machining tool, and the reamer that said step (2) is used comprises cutter head and connecting portion, and the rear end of said connecting portion has the spindle mounting hole that can be connected with the machining tool main shaft.
Beneficial effect:
1. replace with half smart expansion and slightly extend to; Replace right boring with hinge; Make procedure of processing foreshorten to for two steps; Can shorten the processing beat greatly being implemented in the whole manufacturing procedures of completion on one or two processing stations on the machining tool (need not to get into machining center handles) according to automatic machining line or the same requirement not of non-automatic processing line.
2. the reamer (past is clip type) that uses in processing technology-hinge is improved; Spindle mounting hole is left in rear end through at its connecting portion; Realize and direct connection of machining tool (special purpose machine tool) main shaft (as be threaded, clamping or grafting etc.); Because half smart expansion itself is just processed on special purpose machine tool; Thereby all processing steps that are implemented in clearance hole processing all carry out with same positioning reference, have avoided the generation of casting skin problem after adding percent defective that man-hour, the positioning reference difference caused such as bore hole on the different lathes.
3. do not carry out right boring (right boring must want machining center to carry out), thereby avoided necessity of work in-process heart operation, need not to use fine boring tool yet, reduce the frequency of on-the-spot tool changing, reduced the percent defective that the cutter adjustment causes simultaneously yet.
Description of drawings
Fig. 1 is the structural representation of reamer of the present invention.
Fig. 2 is the design sketch of clearance hole after processes of the present invention.
Wherein 1-cutter head, 2-connecting portion, 3-spindle mounting hole.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further explained:
With reference to Fig. 1; Reamer comprises cutter head 1 and connecting portion 2, and the rear end of said connecting portion 2 has spindle mounting hole 3, and the main shaft of said machining tool is realized being connected through spindle mounting hole 3 and reamer; Said connected mode is not particularly limited, like screw thread adjunction, clamping or grafting etc.
Embodiment 1: with the ISDe of east wind limited company cylinder body is example; Its clearance hole full automatic line processing method is specially: former and later two processing stations (first station and second station) are set on the same machining tool; First station is the half smart processing stations that expands, and second station is the hinge processing stations.
(1) in the spindle mounting hole on the self-corresponding main shaft power head of mounting cutter each on same lathe, detects the reamer blade and beat (being not more than 0.02mm) the housing screw fixed cutting tool.The cylinder body automatic transport clamps to first processing stations automatically;
(2) cylinder body, is clamped to first station by automatic transport automatically;
(3) clearance hole: processing dimension φ 56.2 before and after half smart the expansion
+ 0.10 -0.10Mm; The cutter that uses on the main shaft is the half smart cutter that expands; Control lathe cutting speed 200-300m/min, amount of feeding 0.3-0.4mm/r, Ra6.3, cutting depth 2.4-2.6mm process sand hole aperture to predetermined hole diameter and deduct fraising reservation amount (best fraising reservation amount is 0.5-0.7mm).
(4) behind completion half smart the expansion, unclamp clamping, cylinder body, is clamped to second station by automatic transport once more automatically;
(5) clearance hole: processing dimension φ 57.84 before and after the hinge
+ 0.04 -0.04Mm, the cutter on the main shaft are reamer, control lathe cutting speed 200-300m/min, amount of feeding 0.3-0.4mm/r, Ra 2.5, cutting depth 0.30-0.32mm, process the aperture of sand hole aperture to given size.
(6) machine, cutter withdraws from, and cylinder body lifts with line and is transported to next station.
Embodiment 2: with the ISDe of east wind limited company cylinder body is example, and the non-automatic processing method of its clearance hole is specially: processing stations on the same machining tool.
(1) the half smart cutter that expands is installed earlier.
(2) cylinder body is delivered to machining position and clamping.
(3) clearance hole before and after half smart expansion the: with embodiment 1.
(4) behind completion half smart the expansion, will partly smartly expand cutter and be replaced by reamer.
(5) clearance hole before and after the hinge: with embodiment 1.
(6) machine, cutter withdraws from, and cylinder body is delivered to next manufacturing procedure.
The concrete size of the sand hole that said concrete processing dimension those skilled in the art can process is as required set.The structure of said machining tool (being special purpose machine tool) is a prior art, does not detail one by one at this.
Claims (2)
1. an engine cylinder-body clearance hole processing technology is characterized in that, follows these steps to carry out: clearance hole before and after (1) half smart expansion: control lathe cutting speed 200-300m/min, amount of feeding 0.3-0.4mm/r, Ra6.3, cutting depth 2.4-2.2.6mm;
(2) clearance hole before and after the hinge: control lathe cutting speed 200-300m/min, amount of feeding 0.3-0.4mm/r, Ra 2.5, cutting depth 0.30-0.32mm, until processing sand hole to predetermined hole diameter.
2. engine cylinder-body clearance hole processing technology according to claim 1; It is characterized in that; Half essence of said step (1) extends to the hinge of step (2) and on same machining tool, carries out; The reamer that uses in the said step (2) comprises cutter head and connecting portion, and the rear end of said connecting portion has the spindle mounting hole that can be connected with the machining tool main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103244343A CN102430896A (en) | 2011-10-24 | 2011-10-24 | Engine cylinder block sand outlet processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103244343A CN102430896A (en) | 2011-10-24 | 2011-10-24 | Engine cylinder block sand outlet processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102430896A true CN102430896A (en) | 2012-05-02 |
Family
ID=45979435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103244343A Pending CN102430896A (en) | 2011-10-24 | 2011-10-24 | Engine cylinder block sand outlet processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102430896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196009A (en) * | 2015-10-30 | 2015-12-30 | 安徽全柴动力股份有限公司 | Machining method of bottom surface and positioning hole of bottom surface of engine body of multi-cylinder engine |
| CN110405425A (en) * | 2019-08-19 | 2019-11-05 | 盛瑞传动股份有限公司 | A kind of thermostat housing process for machining |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873163A (en) * | 1996-10-22 | 1999-02-23 | Diefenthaler; Mark S. | Method for repairing corroded cylinder castings in water-cooled engine blocks |
| JPH11262822A (en) * | 1998-03-19 | 1999-09-28 | Nissan Motor Co Ltd | Method and apparatus for machining inner surface of cylinder bore |
| CN101922375A (en) * | 2009-06-10 | 2010-12-22 | F.波尔希名誉工学博士公司 | Cylinder block and method for producing a cylinder block |
| CN102084113A (en) * | 2008-07-03 | 2011-06-01 | 卡特彼勒公司 | Method of manufacturing an engine block |
-
2011
- 2011-10-24 CN CN2011103244343A patent/CN102430896A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873163A (en) * | 1996-10-22 | 1999-02-23 | Diefenthaler; Mark S. | Method for repairing corroded cylinder castings in water-cooled engine blocks |
| JPH11262822A (en) * | 1998-03-19 | 1999-09-28 | Nissan Motor Co Ltd | Method and apparatus for machining inner surface of cylinder bore |
| CN102084113A (en) * | 2008-07-03 | 2011-06-01 | 卡特彼勒公司 | Method of manufacturing an engine block |
| CN101922375A (en) * | 2009-06-10 | 2010-12-22 | F.波尔希名誉工学博士公司 | Cylinder block and method for producing a cylinder block |
Non-Patent Citations (2)
| Title |
|---|
| 张树礼: "汽车发动机缸体缸孔精加工技术", 《金属加工(冷加工)》 * |
| 朱廷福等: "发动机主要零件的加工工艺和设备(二)", 《组合机床与自动化加工技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196009A (en) * | 2015-10-30 | 2015-12-30 | 安徽全柴动力股份有限公司 | Machining method of bottom surface and positioning hole of bottom surface of engine body of multi-cylinder engine |
| CN110405425A (en) * | 2019-08-19 | 2019-11-05 | 盛瑞传动股份有限公司 | A kind of thermostat housing process for machining |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |