CN103372757A - Manufacturing method for diesel engine exhaust valve upper seat - Google Patents
Manufacturing method for diesel engine exhaust valve upper seat Download PDFInfo
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- CN103372757A CN103372757A CN2012101219996A CN201210121999A CN103372757A CN 103372757 A CN103372757 A CN 103372757A CN 2012101219996 A CN2012101219996 A CN 2012101219996A CN 201210121999 A CN201210121999 A CN 201210121999A CN 103372757 A CN103372757 A CN 103372757A
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- exhaust valve
- upper seat
- valve upper
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Abstract
The invention discloses a manufacturing method for a diesel engine exhaust valve upper seat. The manufacturing method comprises the steps of processing a center hole after workblank polishing; drawing every horizontal curve, every round line and every lug processing line; processing inner holes at one end with a small diameter after correction; milling every excircle lug; enabling the inner holes at the end with the small diameter to be located through cylinder ejector pins, adjusting tooling screws to be aligned with the round lines at one end with a large diameter, first enabling a cutter retracting groove hole to undergo rough turning to be smooth, and then using a dill and a forming drill to process the inner holes and a cutter retracting groove; performing lineation and adjustment on excircles at one end with the large diameter; processing a process screw hole; performing high-pressure pumping pressure and low-pressure pumping pressure on a workpiece; processing small holes; performing finish machining on every inner hole and every excircle after pouring fusible alloy; processing locating pins; processing every hole on the side; performing deburring, and honing the inner holes; cleaning parts, and performing rust prevention treatment and inspection. The manufacturing method can effectively improve product processing quality and efficiency.
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 comprised of upper shell and housing two parts, and connect by piston guide bush, because it is two parts, so make respectively comparatively simple, but two-part relative position is difficult for guaranteeing, so adopt the monoblock type upper seat to substitute, however monoblock type upper seat product at home and abroad many companies make through time more than a year, all end in failure.
Summary of the invention
In order to remedy 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 for the technical scheme that solves its technical problem and adopt is: a kind of manufacture method of diesel exhaust valve upper seat, and concrete steps are as follows:
Step 1: the non-machined surface polishing of blank;
Step 2: lathe small end face machining center hole;
Step 3: take centre bore and large blank cylindrical as benchmark, draw each planar line, circle line, lug processing line, and the check blank allowance;
Step 4: the cylindrical of the diameter maximum of lathe four paws clamping work pieces, then with the little end endoporus locating size of processing diameter behind the workpiece correction;
Step 5: mill each cylindrical lug size;
Step 6: an end location cylindrical, endoporus and escape that rough turn diameter is large;
Step 7: transfer in the rear school of continuing of the end cylindrical line that diameter is large;
Step 8: vertical processing positioning step hole, and processing technology screw;
Step 9: utilize the technique screw that workpiece is carried out high pressure pump pressure and low pressure pump pressure;
Step 10: the vertical machining small through hole that adds;
Step 11: workpiece is placed on location in the frock, and the cast fusible alloy is with omoplate face location, each endoporus of disposable fine finishining, cylindrical;
Step 12: the large end alignment pin of processing diameter;
Step 13: sleeping each hole, processing work side that adds;
Step 14: repair deburring, the Hole honing roughness is 0.4 endoporus;
Step 15:, repair deburring, cleaning components, antirust processing;
Step 10 six: final inspection;
It is characterized in that:
In step 6, with the little end Internal hole positioning of diameter, cylinder thimble location, adjust the large end circle line of fixture bolt centering diameter, first that the withdrawing slotted eye is rough turn to seeing light, re-use drill bit, moulding brill processing endoporus and escape, can avoid like this blank uneven, the drill bit sideslip has slightly guaranteed the axiality of large end endoporus and small end endoporus.
As a further improvement on the present invention, in the described step 9, the red copper gasket seal is used at the sealing position when carrying out the high pressure pump pressure, because the high pressure pump pressure needs 150MPa, utilizes the good ductility of red copper and toughness, guarantees good airproof performance.
As a further improvement on the present invention, the red copper pad in the step 9 adopts the copper tube extruding to form, and heat treatment before using can better guarantee its sealing function.
As a further improvement on the present invention, in the step 11, workpiece is packed in the three muscle frocks, by positioning tool with product orientation, re-using screw is connected frock with product, use 70 ℃ of fusible alloys that product and frock are connected as one, the product that improves greatly adds rigidity, the shockproof properties in man-hour, takes out respectively after melting in boiling water after the processing.
As a further improvement on the present invention, three muscle frocks are simulated dynamic equilibrium with product and fusible alloy first in the step 11 in three-dimensional software before processing, then carry out the processing of three muscle frocks, guarantee whole dynamic equilibrium.
As a further improvement on the present invention, three muscle frock machinings use cutter for lengthening shockproof blade row, and on lathe with its fastening location, guarantee to have good rigidity, all have in the good rigidity situation at product and cutter, can greatly improve the quality of products.This kind method is simple, practicality has improved production efficiency greatly, has guaranteed product quality.
As a further improvement on the present invention, with 48 the Cutting tool installation manner work in-process in the heart, each hole, converted products side guarantees each hole dimension of side and roughness 1.6, then chamfering in the step 13.
Useful technique effect of the present invention is: it is large to the invention provides this draw ratio of all-in-one-piece diesel exhaust valve upper seat, and the accurate porous processing that axiality is high, especially product design is irregular, and part by weight is uneven, is difficult for the processing of clamping, school accent product; The use of fusible alloy effectively raises quality and efficient that product is processed.
Description of drawings
Fig. 1 is all-in-one-piece diesel exhaust valve upper seat structural representation;
Fig. 2 is A section enlarged drawing among 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.
The specific embodiment
Embodiment: a kind of manufacture method of diesel exhaust valve upper seat, concrete steps are as follows:
Step 1, the non-machined surface polishing of blank;
Step 2,1 interior hole end surface machining center hole, lathe the first hole;
Step 3, take the large end cylindrical of centre bore and blank diameter as benchmark, draw each planar line, circle line, lug processing line, and the check blank allowance;
Step 4, lathe four paws clamp the large end cylindrical of diameter, proofread and correct, and rough turn the first hole 1 endoporus is to the locating size;
Step 5, mill first, second, third and fourth circle lug D, E, F, G;
Step 6, rough turn the second cylindrical 2, third and fourth, five holes 3,4,5, first step 8 and escape;
Transfer in step 7, the large cylindrical follow-up school of ruling;
Step 8, vertical four the 6th holes 6 of semifinishing that add;
Step 9, the high pressure pump pressure is carried out in the 5th hole 5, all inner chambers are carried out the low pressure pump pressure;
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 location in the frock, the cast fusible alloy, and with omoplate face location on the second hole 2 cylindricals and the first step 8, disposable fine finishining the second cylindrical 2 and third and fourth, five, seven apertures in the human head 3,4,5,7;
Step 12, vertical four the 6th holes 6 of fine finishining and the pin-and-hole 9 of adding;
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 processing;
Step 10 six, final inspection;
Wherein in the step 6,1 location, the first hole with the little end of minor diameter, the large end circle line of fixture bolt centering diameter is adjusted, rough turn the second cylindrical 2 and three, four holes 3,4 in cylinder thimble location, when processing the 5th hole 5, first that the withdrawing slotted eye is rough turn to seeing light, re-use drill bit, moulding brill processing endoporus and escape, avoid blank uneven, the drill bit sideslip has slightly guaranteed the axiality of large end endoporus and small end endoporus.
In the described step 9, because the 5th hole 5 endoporus pump high pressure need 150MPa, so the red copper gasket seal is used at the sealing position, utilize the good ductility of red copper and toughness, the red copper pad adopts the copper tube extruding to form, and heat treatment before using can better guarantee its sealing function.
In the described step 11, workpiece is packed in the three muscle frocks, by positioning tool with product orientation, re-using screw is connected frock with product, use 70 ℃ of fusible alloys that product and frock are become one, the product that improves greatly adds rigidity, the shockproof properties in man-hour, only needs after the processing can melt in boiling water to take out recycling.Three muscle frocks need to be simulated dynamic equilibrium with product and fusible alloy in three-dimensional software, frock is in position taken out the part material, guarantee whole dynamic equilibrium, process employed cutter for lengthening shockproof blade row, and on lathe with its fastening location, guarantee to have good rigidity, all have in the good rigidity situation at product and cutter, can greatly improve the quality of products, this kind method is simple, practicality has improved production efficiency greatly, has guaranteed product quality.
In the described step 13, by 48 the Cutting tool installation manner work in-process in the heart, with the worker first, second, third and fourth, five circle lug D, E, F, G, C and pin-and-hole be machined to product requirement, guarantees each hole dimension of side and roughness 1.6, and chamfering.
Claims (7)
1. the manufacture method of a diesel exhaust valve upper seat, concrete steps are as follows:
Step 1: the non-machined surface polishing of blank;
Step 2: lathe small end face machining center hole;
Step 3: take centre bore and large blank cylindrical as benchmark, draw each planar line, circle line, lug processing line, and the check blank allowance;
Step 4: the cylindrical of the diameter maximum of lathe four paws clamping work pieces, then with the little end endoporus locating size of processing diameter behind the workpiece correction;
Step 5: mill each cylindrical lug size;
Step 6: an end location cylindrical, endoporus and escape that rough turn diameter is large;
Step 7: transfer in the rear school of continuing of the end cylindrical line that diameter is large;
Step 8: vertical processing positioning step hole, and processing technology screw;
Step 9: utilize the technique screw that workpiece is carried out high pressure pump pressure and low pressure pump pressure;
Step 10: the vertical machining small through hole that adds;
Step 11: workpiece is placed on location in the frock, and the cast fusible alloy is with omoplate face location, each endoporus of disposable fine finishining, cylindrical;
Step 12: the large end alignment pin of processing diameter;
Step 13: sleeping each hole, processing work side that adds;
Step 14: repair deburring, the Hole honing roughness is 0.4 endoporus;
Step 15:, repair deburring, cleaning components, antirust processing;
Step 10 six: final inspection;
It is characterized in that:
In step 6, with the little end Internal hole positioning of diameter, the large end circle line of fixture bolt centering diameter is adjusted in cylinder thimble location, and is first that the withdrawing slotted eye is rough turn to seeing light, re-uses drill bit, moulding brill processing endoporus and escape.
2. the manufacture method of diesel exhaust valve upper seat according to claim 1 is characterized by: in the described step 9, seal the position when carrying out the high pressure pump pressure and use the red copper gasket seal.
3. the manufacture method of diesel exhaust valve upper seat according to claim 2 is characterized by: the red copper pad in the step 9 adopts the copper tube extruding to form, heat treatment before using.
4. the manufacture method of diesel exhaust valve upper seat according to claim 1, it is characterized by: in the step 11, workpiece is packed in the three muscle frocks, by positioning tool with product orientation, re-using screw is connected frock with product, use 70 ℃ of fusible alloys that product and frock are connected as one, take out respectively after in boiling water, melting after the processing.
5. the manufacture method of diesel exhaust valve upper seat according to claim 4 is characterized by: in the step 11 three muscle frocks before processing first in three-dimensional software with product and fusible alloy simulation dynamic equilibrium, then carry out the processing of three muscle frocks.
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 on lathe with its fastening location.
7. the manufacture method of diesel exhaust valve upper seat according to claim 1 is characterized by: with 48 the Cutting tool installation manner work in-process in the heart, each hole, converted products side guarantees each hole dimension of side and roughness 1.6, then chamfering in the step 13.
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 true CN103372757A (en) | 2013-10-30 |
| CN103372757B 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109751505A (en) * | 2018-05-09 | 2019-05-14 | 海控复合材料科技有限公司 | Communication apparatus is loaded and detected for the full wound composite gas cylinder production and processing of nonmetallic liner |
| CN110270798A (en) * | 2019-06-27 | 2019-09-24 | 福建维普斯厨卫科技有限公司 | A kind of Multifunctional faucet and its production technology |
| CN110948186A (en) * | 2019-12-17 | 2020-04-03 | 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109751505A (en) * | 2018-05-09 | 2019-05-14 | 海控复合材料科技有限公司 | Communication apparatus is loaded and detected for the full wound composite gas cylinder production and processing of nonmetallic liner |
| 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 |
| CN110270798A (en) * | 2019-06-27 | 2019-09-24 | 福建维普斯厨卫科技有限公司 | A kind of Multifunctional faucet and its production technology |
| CN110948186A (en) * | 2019-12-17 | 2020-04-03 | 金湖龙兴达汽配有限公司 | Production method of anti-overflow exhaust valve |
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|---|---|
| CN103372757B (en) | 2015-12-16 |
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Granted publication date: 20151216 Termination date: 20170424 |