CN103372757B - The manufacture method of diesel exhaust valve upper seat - Google Patents
The manufacture method of diesel exhaust valve upper seat Download PDFInfo
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- CN103372757B CN103372757B CN201210121999.6A CN201210121999A CN103372757B CN 103372757 B CN103372757 B CN 103372757B CN 201210121999 A CN201210121999 A CN 201210121999A CN 103372757 B CN103372757 B CN 103372757B
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- hole
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- exhaust valve
- manufacture method
- upper seat
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Abstract
The invention discloses a kind of manufacture method of diesel exhaust valve upper seat, concrete steps are: blank polishing aft-loaded airfoil centre bore; Then each planar line, circle line, lug processing line is drawn; Correct one end endoporus that aft-loaded airfoil diameter is little; The each cylindrical lug of milling; Located by cylinder thimble with one end endoporus that diameter is little, one end circle line that adjustment fixture bolt centering diameter is large, first by rough turn for withdrawing slotted eye to seeing light, re-use drill bit, shaping brill processing endoporus and escape; One end cylindrical that diameter is large is rule and school is adjusted; Processing technology screw; High pressure pump pressure and low pressure pump pressure are carried out to workpiece; Machining small; The each endoporus of fine finishining, cylindrical after cast fusible alloy; Locating and machining pin; Processing each hole, side; Deburring, Hole honing; Cleaning components, antirust treatment is also checked; The present invention effectively raises quality and the efficiency of Product processing.
Description
Technical field
The present invention relates to a kind of manufacture method of diesel engine part, particularly a kind of manufacture method of diesel exhaust valve upper seat.
Background technology
Traditional diesel exhaust valve upper seat part is made up of upper shell and housing two parts, and connected by piston guide bush, because it is two parts, therefore manufacture comparatively simple respectively, but two-part relative position not easily ensures, therefore adopt monoblock type upper seat to substitute, but monoblock type upper seat product at home and abroad many companies through the time manufactures more than a year, all end in failure.
Summary of the invention
In order to make up above deficiency, the invention provides a kind of manufacture method of diesel exhaust valve upper seat, this manufacture method can process all-in-one-piece diesel exhaust valve upper seat accurately, and machining accuracy is high.
The present invention in order to the technical scheme solving its technical problem and adopt is: a kind of manufacture method of diesel exhaust valve upper seat, and concrete steps are as follows:
Step one: the non-machined surface polishing of blank;
Step 2: lathe small end face machining center hole;
Step 3: with centre bore and large blank cylindrical for benchmark, draws each planar line, circle line, lug processing line, and checks blank allowance;
Step 4: the cylindrical at the largest diameter place of lathe four paws clamping work pieces, then by one end endoporus locating size little for workpiece correction aft-loaded airfoil diameter;
Step 5: milling each cylindrical lug size;
Step 6: location, one end cylindrical, endoporus and escape that rough turn diameter is large;
Step 7: continue school after one end cylindrical line that diameter is large and adjust;
Step 8: stand and add locating and machining stepped hole, and processing technology screw;
Step 9: utilize technique screw to carry out high pressure pump pressure and low pressure pump pressure to workpiece;
Step 10: stand and add machining small through hole;
Step 11: workpiece is placed on frock inner position, cast fusible alloy, with location, omoplate face, each endoporus of disposable fine finishining, cylindrical;
Step 12: one end alignment pin that processing diameter is large;
Step 13: crouch and add each hole, processing work side;
Step 14: repair deburring, Hole honing roughness is the endoporus of 0.4;
Step 15:, repair deburring, cleaning components, antirust treatment;
Step 10 six: final inspection;
It is characterized in that:
In step 6, with one end Internal hole positioning that diameter is little, cylinder thimble is located, one end circle line that adjustment fixture bolt centering diameter is large, first by rough turn for withdrawing slotted eye to seeing light, re-use drill bit, shaping brill processing endoporus and escape, blank can be avoided so uneven, drill bit sideslip, slightly ensure that the axiality of large end endoporus and small end endoporus.
As a further improvement on the present invention, in described step 9, seal position when carrying out high pressure pump pressure and use red copper gasket seal, because high pressure pump pressure needs 150MPa, the ductility utilizing red copper good and toughness, guarantee good airproof performance.
As a further improvement on the present invention, the red copper pad in step 9 adopts copper tube extruding to form, and uses front heat treatment, can better ensure its sealing function.
As a further improvement on the present invention, in step 11, workpiece is loaded in three muscle frocks, by positioning tool by product orientation, re-use screw frock is connected with product, use 70 DEG C of fusible alloys product and frock to be connected as one, the rigidity during Product processing improved greatly, shockproof properties, take out respectively after melting in boiling water after processing.
As a further improvement on the present invention, in step 11, three muscle frocks first simulate dynamic equilibrium with product and fusible alloy before processing in three-dimensional software, then carry out three muscle frock processing, ensure overall dynamic equilibrium.
As a further improvement on the present invention, three muscle frock machinings use cutter for lengthening shockproof blade row, and by its fastening location on lathe, guarantee to have good rigidity, under product and cutter all have good rigidity situation, can greatly improve the quality of products.This kind of method is simple, practicality substantially increases production efficiency, ensure that product quality.
As a further improvement on the present invention, in step 13 by 48 Cutting tool installation manner work in-process in the heart, each hole, converted products side, ensures each hole dimension in side and roughness 1.6, then chamfering.
Advantageous Effects of the present invention is: the invention provides this draw ratio of all-in-one-piece diesel exhaust valve upper seat large, and the accurate porous processing that axiality is high, especially product design is irregular, and part by weight is uneven, not easily the processing of clamping, school tune product; The use of fusible alloy, effectively raises quality and the efficiency of Product processing.
Accompanying drawing explanation
Fig. 1 is all-in-one-piece diesel exhaust valve upper seat structural representation;
Fig. 2 is A portion enlarged drawing in Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the structural representation of all-in-one-piece diesel exhaust valve upper seat shaving tool.
Detailed description of the invention
Embodiment: a kind of manufacture method of diesel exhaust valve upper seat, concrete steps are as follows:
The non-machined surface polishing of step one, blank;
Hole end surface machining center hole in step 2, lathe first hole 1;
Step 3, with centre bore and the large one end cylindrical of blank diameter for benchmark, draw each planar line, circle line, lug processing line, and check blank allowance;
One end cylindrical that step 4, lathe four paws clamping diameter is large, correct, rough turn first hole 1 endoporus is to locating size;
Step 5, first, second, third and fourth circle lug of milling D, E, F, G;
Step 6, rough turn second hole cylindrical 2, third and fourth, five holes 3,4,5, first step 8 and escape;
Step 7, large cylindrical follow-up school of ruling is adjusted;
Step 8, vertical add semifinishing four the 6th holes 6;
Step 9, high pressure pump pressure is carried out to the 5th hole 5, low pressure pump pressure is carried out to all inner chambers;
Step 10, the vertical semifinishing seven apertures in the human head 7 that adds are through hole and second step H;
Step 11, workpiece are placed on frock inner position, cast fusible alloy, with location, omoplate face on the second hole cylindrical 2 and first step 8, disposable fine finishining second hole cylindrical 2 and third and fourth, five, seven apertures in the human head 3,4,5,7;
Step 12, vertical add fine finishining four the 6th holes 6 and pin-and-hole 9;
Step 13, sleeping processing first, second, third and fourth, five circle lug D, E, F, G, C;
Step 14, repair deburring, the endoporus in honing the 4th hole 4;
Step 15, repair deburring, cleaning components, antirust treatment;
Step 10 six, final inspection;
Wherein in step 6, locate with first hole 1 of the little one end of minor diameter, cylinder thimble is located, one end circle line that adjustment fixture bolt centering diameter is large, rough turn second hole cylindrical 2 and three, four holes 3,4, when processing the 5th hole 5, first by rough turn for withdrawing slotted eye to seeing light, re-use drill bit, shaping brill processing endoporus and escape, avoid blank uneven, drill bit sideslip, slightly ensure that the axiality of large end endoporus and small end endoporus.
In described step 9, because the 5th hole 5 endoporus pump high pressure needs 150MPa, therefore sealing position uses red copper gasket seal, the ductility utilizing red copper good and toughness, red copper pad adopts copper tube extruding to form, and uses front heat treatment, can better ensure its sealing function.
In described step 11, workpiece is loaded in three muscle frocks, by positioning tool by product orientation, re-use screw frock is connected with product, 70 DEG C of fusible alloys are used product and frock to be become one, the rigidity during Product processing improved greatly, shockproof properties, only need can melt after processing and take out recycling in boiling water.Three muscle frocks need to simulate dynamic equilibrium with product and fusible alloy in three-dimensional software, frock is in position taken out part material, ensure overall dynamic equilibrium, the cutter that machining uses for lengthening shockproof blade row, and by its fastening location on lathe, guarantees to have good rigidity, under product and cutter all have good rigidity situation, greatly can improve the quality of products, this kind of method is simple, practicality substantially increases production efficiency, ensure that product quality.
In described step 13, by 48 Cutting tool installation manner work in-process in the heart, by work first, second, third and fourth, five circle lug D, E, F, G, C and pin-and-hole be machined to product requirement, ensures each hole dimension in side and roughness 1.6, and chamfering.
Claims (7)
1. a manufacture method for diesel exhaust valve upper seat, concrete steps are as follows:
Step one: the non-machined surface polishing of blank;
Step 2: lathe small end face machining center hole;
Step 3: with centre bore and the large one end cylindrical of blank diameter for benchmark, draw each planar line, circle line, lug processing line, and check blank allowance;
Step 4: one end cylindrical that lathe four paws clamping diameter is large, correct, rough turn first hole endoporus is to locating size;
Step 5: first, second, third and fourth circle lug of milling;
Step 6: rough turn second hole cylindrical, third and fourth, five holes, first step and escape;
Step 7: one end cylindrical that diameter is large rule follow-up school adjust;
Step 8: stand and add semifinishing four the 6th holes;
Step 9: high pressure pump pressure is carried out to the 5th hole, low pressure pump pressure is carried out to all inner chambers;
Step 10: vertical to add semifinishing seven apertures in the human head be through hole and second step;
Step 11: workpiece is placed on frock inner position, cast fusible alloy, with on the second hole cylindrical and first step omoplate face location, disposable fine finishining second hole cylindrical and third and fourth, five, seven apertures in the human head;
Step 12: stand and add fine finishining four the 6th holes and pin-and-holes;
Step 13: sleeping processing first, second, third and fourth, five circle lugs;
Step 14: repair deburring, the endoporus in honing the 4th hole;
Step 15: repair deburring, cleaning components, antirust treatment;
Step 10 six: final inspection;
It is characterized in that: in step 6, with first location, hole of the little one end of diameter, cylinder thimble is located, one end circle line that adjustment fixture bolt centering diameter is large, rough turn second hole cylindrical and three, four holes, when processing the 5th hole, first by rough turn for withdrawing slotted eye to seeing light, re-use drill bit, shaping brill processing endoporus and escape.
2. the manufacture method of diesel exhaust valve upper seat according to claim 1, is characterized by: in described step 9, seals position and use red copper gasket seal when carrying out high pressure pump pressure.
3. the manufacture method of diesel exhaust valve upper seat according to claim 2, is characterized by: the red copper pad in step 9 adopts copper tube extruding to form, and uses front heat treatment.
4. the manufacture method of diesel exhaust valve upper seat according to claim 1, it is characterized by: in step 11, workpiece is loaded in three muscle frocks, by positioning tool by product orientation, re-use screw frock is connected with product, use 70 DEG C of fusible alloys product and frock to be connected as one, take out respectively after melting in boiling water after processing.
5. the manufacture method of diesel exhaust valve upper seat according to claim 4, is characterized by: in step 11, three muscle frocks first simulate dynamic equilibrium with product and fusible alloy before processing in three-dimensional software, then carries out three muscle frock processing.
6. the manufacture method of diesel exhaust valve upper seat according to claim 5, is characterized by: three muscle frock machinings use cutter for lengthening shockproof blade row, and by its fastening location on lathe.
7. the manufacture method of diesel exhaust valve upper seat according to claim 1, is characterized by: in step 13 by 48 Cutting tool installation manner work in-process in the heart, each hole, converted products side, ensures each hole dimension in side and roughness 1.6, then chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121999.6A CN103372757B (en) | 2012-04-24 | 2012-04-24 | The manufacture method of diesel exhaust valve upper seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121999.6A CN103372757B (en) | 2012-04-24 | 2012-04-24 | The manufacture method of diesel exhaust valve upper seat |
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| Publication Number | Publication Date |
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| CN103372757A CN103372757A (en) | 2013-10-30 |
| CN103372757B true CN103372757B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210121999.6A Expired - Fee Related CN103372757B (en) | 2012-04-24 | 2012-04-24 | The manufacture method of diesel exhaust valve upper seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104723112A (en) * | 2013-12-20 | 2015-06-24 | 大连津利流体设备开发有限公司 | Production method of multifunctional double-block sampling instrument root valve body with support |
| CN106862532A (en) * | 2017-03-01 | 2017-06-20 | 中国电子科技集团公司第十六研究所 | A kind of processing method of metal class thin-wall part |
| CN107175465A (en) * | 2017-05-18 | 2017-09-19 | 济南重工股份有限公司 | The processing technology of typical large diameter thin wall part |
| CN109751505B (en) * | 2018-05-09 | 2023-10-20 | 海控复合材料科技有限公司 | Clamping and detecting communication device for production and processing of nonmetallic liner fully-wound composite material gas cylinder |
| CN110270798B (en) * | 2019-06-27 | 2020-09-29 | 福建维普斯厨卫科技有限公司 | Production process of multifunctional faucet comprising cylindrical bathroom main body |
| CN110948186B (en) * | 2019-12-17 | 2021-10-29 | 金湖龙兴达汽配有限公司 | Production method of anti-overflow exhaust valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2011392A6 (en) * | 1987-11-05 | 1990-01-01 | Man B & W Diesel As | Method of controlling closing motion of exhaust valve and exhaust valve used for said method |
| CA2260826A1 (en) * | 1996-07-16 | 1998-01-22 | Oded E. Sturman | A hydraulically controlled intake/exhaust valve |
| WO2005116408A1 (en) * | 2004-04-27 | 2005-12-08 | Märkisches Werk GmbH | Valve rotating mechanism for exhaust valves, especially for marine diesel engines |
| CN102248376A (en) * | 2011-06-28 | 2011-11-23 | 湖北三江航天江北机械工程有限公司 | Machining method of porous thin-wall protective tube with large length-diameter ratio |
-
2012
- 2012-04-24 CN CN201210121999.6A patent/CN103372757B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2011392A6 (en) * | 1987-11-05 | 1990-01-01 | Man B & W Diesel As | Method of controlling closing motion of exhaust valve and exhaust valve used for said method |
| CA2260826A1 (en) * | 1996-07-16 | 1998-01-22 | Oded E. Sturman | A hydraulically controlled intake/exhaust valve |
| WO2005116408A1 (en) * | 2004-04-27 | 2005-12-08 | Märkisches Werk GmbH | Valve rotating mechanism for exhaust valves, especially for marine diesel engines |
| CN102248376A (en) * | 2011-06-28 | 2011-11-23 | 湖北三江航天江北机械工程有限公司 | Machining method of porous thin-wall protective tube with large length-diameter ratio |
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| CN103372757A (en) | 2013-10-30 |
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Granted publication date: 20151216 Termination date: 20170424 |
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