CN103084834A - Top-mounted assembly technology of camshaft cylinder cover assembly - Google Patents

Top-mounted assembly technology of camshaft cylinder cover assembly Download PDF

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Publication number
CN103084834A
CN103084834A CN201310035549XA CN201310035549A CN103084834A CN 103084834 A CN103084834 A CN 103084834A CN 201310035549X A CN201310035549X A CN 201310035549XA CN 201310035549 A CN201310035549 A CN 201310035549A CN 103084834 A CN103084834 A CN 103084834A
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China
Prior art keywords
valve
assembly
cylinder head
exhaust valve
inlet
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CN201310035549XA
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Chinese (zh)
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CN103084834B (en
Inventor
朱炜
李红剑
李建刚
许戈
张立
宋蔚
张俊雄
李承焕
周燕龙
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中国第一汽车股份有限公司
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Abstract

The invention relates to a top-mounted assembly technology of camshaft cylinder cover assembly. The assembly technology mainly comprises steps arranging an air gate valve rod on the cylinder cover in a pressing mode, installing an intake valve and an exhaust valve, measuring deflection of the intake valve and the exhaust valve, installing an intake valve spring, an exhaust valve spring, an exhaust valve inner spring, a valve spring seat and a valve collet, detecting quality of the installation of the valve collet, detecting the valve collet patting, detecting leakage of the valve collet, installing components such as an intermediate gear assembly and a thrust plate in correct timing, installing components such as an oil injector assembly, tightening an oil injector press plate bolt and a middle gland nut, detecting extending quantity of the oil injector assembly and transferring and offline of qualified products of a cylinder cover assembly and the like. The top-mounted assembly technology of the camshaft cylinder cover assembly is saved in equipment investment and working position arrangement. Control ability is effectively improved in the process of assembly quality. The installation of components and parts of the bottleneck operation is optimized, the technological process is reasonably distributed, the requirement of quantity production is met, and the cycle time of the whole line is in 130s.

Description

A kind of assembly technology of overhead camshaft cylinder cap assembly
Technical field
The present invention relates to a kind of assembly technology of cylinder cap assembly, especially relate to a kind of assembly technology of overhead camshaft cylinder cap assembly, belong to engine assembly technique field.
Background technology
At present, the assembly technology of domestic cylinder cap assembly be all generally first be installed into, exhaust valve, then with 180 ° of installations of carrying out the valve stem sealing ring of cylinder head upset; Need be provided with corresponding anti-air-stop gate and drop out device on apparatus for production line, can increase equipment investment.In addition, in the situation that production line is in enormous quantities, beat is shorter, generally only can inspect by random samples valve deflection and fuel injector overhang, and can't accomplish full inspection to all crucial fitted positions and crucial assembling process.
There is following shortcoming in above-mentioned cylinder cap set assembling technology: traditional valve stem sealing ring can increase equipment investment, and the installation of upset and air valve rod seal circle can't be carried out at a station.In addition, in production, if only the part fitted position is inspected by random samples, not only the assembly quality process control can't guarantee, and can't accomplish in time to reprocess to defective.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and can effectively save equipment investment, promote the assembly process control ability, accomplish that defective the purpose that can in time reprocess is with the assembly technology of the requirement of satisfying batch production, overhead camshaft cylinder cap assembly that whole line installation time can obviously shorten.
According to technical scheme provided by the invention, the assembly technology of described overhead camshaft cylinder cap assembly comprises the steps:
A, cylinder head are reached the standard grade, and the bottom surface of cylinder head down;
B, press-fit the valve stem sealing ring and detect the valve stem sealing ring on cylinder head and whether be in place;
C, by tipper with cylinder head to 120 ° of exhaust side upsets, make the cylinder head bottom surface towards the operator, carry out the installation of inlet valve, exhaust valve, then by tipper with cylinder head to 120 ° of air inlet lateral overturnings, the bottom surface of recovering cylinder head is attitude down;
Inlet valve on d, measurement cylinder head and the deflection of exhaust valve;
E, be installed into valve spring, exhaust valve spring and exhaust valve inner spring on cylinder head, then whether the exhaust valve inner spring be in place and detect;
If the described step b of f rolls off the production line immediately to step e discovery defective work, carry out artificial Repair; If need to change cylinder head, re-execute step a; If need not to change cylinder head and roll off the production line reprocess qualified after, again reach the standard grade after step e, carry out subsequent handling production;
G, inlet-valve spring seat, exhaust valve spring base and inlet valve locker, exhaust valve locker carry out Auto-mounting by cotter seat and valve collet automatic assembly equipment;
In h, step g, cotter seat and inlet and outlet grille clip Auto-mounting occur abnormal, inlet-valve spring seat, exhaust valve spring base are by operator's manual installation, and inlet valve locker, exhaust valve locker carry out semi-automatic installation by operator and valve collet semiautomatic equipment;
The installation quality of i, inlet valve locker and exhaust valve locker detects;
J, inlet valve and exhaust valve are patted detection;
The leakage rate of k, inlet valve and exhaust valve detects by revealing instrument;
If l step I arbitrary procedure to the step k occurs defective, manually reprocess inlet valve locker, exhaust valve locker, inlet valve and exhaust valve by the operator on cylinder cap, re-execute step h~k after reprocessing;
M, straight pin is put into the timing intermediate gear shaft, put timing idler gear assembly and thrust plate on the timing intermediate gear shaft, the straight pin aligned cylinder is covered dowel hole, with hexagon flange bolt, timing idler gear assembly pine together is screwed on cylinder head; Liner on inlet manifold cover plate pad is fastened on the air inlet pipe side with hexagon flange bolt; Hexagonal pyramidal plug screw and tightening in each dress on the hole, forward and backward both ends of the surface return flow oil road of cylinder head;
N, after being put injector plate, injector assembly puts in oil injector hole, again spheric washer on the injector plate bolting pad is put into plate hole, high-pressure oil pipe is taken over put into horizontal lumen pore, be pressed into successively in the oil injector hole of corresponding cylinder head with the injector assembly of injector assembly press-loading device with the first cylinder to the six cylinders;
O, injector plate bolt, middle clamp nut are tightened;
P, the overhang of injector assembly is detected;
If q step p occurs defective, cylinder head rolls off the production line and carries out artificial Repair;
R, the transfer of cylinder head assembly certified products are rolled off the production line.
The present invention has the following advantages:
1, first fill the valve stem sealing ring owing to having adopted, the technique of rear dress valve can be saved equipment investment, saves station and arranges;
2, in assembling, crucial fitted position and crucial assembling process are examined entirely, effectively promoted assembly quality process control ability;
3, perfect strategy and the flow process of reprocessing guaranteed the rate of starting of production line;
4, the parts of having optimized the bottleneck operation are installed, and the requirement of batch production has been satisfied in the reasonable layout technological process, and whole line beat is in 130 seconds.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
in the present invention, overhead camshaft cylinder cap assembly comprises cylinder head, the valve stem sealing ring, inlet valve, exhaust valve, inlet-valve spring, the exhaust valve spring, the exhaust valve inner spring, the inlet-valve spring seat, the exhaust valve spring base, the inlet valve locker, the exhaust valve locker, straight pin, the timing intermediate gear shaft, timing idler gear assembly, thrust plate, hexagon flange bolt, the inlet manifold cover plate, liner, interior hexagonal pyramidal plug screw, interior hexagonal pyramidal plug screw, injector assembly, injector plate, the injector plate bolt, spheric washer, high-pressure oil pipe is taken over and middle clamp nut.
A kind of assembly technology of overhead camshaft cylinder cap assembly comprises the steps:
A, cylinder head are reached the standard grade, and the bottom surface of cylinder head down;
B, press-fit the valve stem sealing ring and detect the valve stem sealing ring on cylinder head and whether be in place;
C, by tipper with cylinder head to 120 ° of exhaust side upsets, make the cylinder head bottom surface towards the operator, carry out the installation of inlet valve, exhaust valve, then by tipper with cylinder head to 120 ° of air inlet lateral overturnings, the bottom surface of recovering cylinder head is attitude down;
Inlet valve on d, measurement cylinder head and the deflection of exhaust valve;
E, be installed into valve spring, exhaust valve spring and exhaust valve inner spring on cylinder head, then whether the exhaust valve inner spring be in place and detect;
If the described step b of f rolls off the production line immediately to step e discovery defective work, carry out artificial Repair; If need to change cylinder head, re-execute step a; If need not to change cylinder head and roll off the production line reprocess qualified after, again reach the standard grade after step e, carry out subsequent handling production;
G, inlet-valve spring seat, exhaust valve spring base and inlet valve locker, exhaust valve locker carry out Auto-mounting by cotter seat and valve collet automatic assembly equipment;
In h, step g, cotter seat and inlet and outlet grille clip Auto-mounting occur abnormal, inlet-valve spring seat, exhaust valve spring base are by operator's manual installation, and inlet valve locker, exhaust valve locker carry out semi-automatic installation by operator and valve collet semiautomatic equipment;
The installation quality of i, inlet valve locker and exhaust valve locker detects;
J, inlet valve and exhaust valve are patted detection;
The leakage rate of k, inlet valve and exhaust valve detects by revealing instrument;
If l step I arbitrary procedure to the step k occurs defective, manually reprocess inlet valve locker, exhaust valve locker, inlet valve and exhaust valve by the operator on cylinder cap, re-execute step h~k after reprocessing;
M, straight pin is put into the timing intermediate gear shaft, put timing idler gear assembly and thrust plate on the timing intermediate gear shaft, the straight pin aligned cylinder is covered dowel hole, with hexagon flange bolt, timing idler gear assembly pine together is screwed on cylinder head; Liner on inlet manifold cover plate pad is fastened on the air inlet pipe side with hexagon flange bolt; Hexagonal pyramidal plug screw and tightening in each dress on the hole, forward and backward both ends of the surface return flow oil road of cylinder head;
N, after being put injector plate, injector assembly puts in oil injector hole, again spheric washer on the injector plate bolting pad is put into plate hole, high-pressure oil pipe is taken over put into horizontal lumen pore, be pressed into successively in the oil injector hole of corresponding cylinder head with the injector assembly of injector assembly press-loading device with the first cylinder to the six cylinders;
O, injector plate bolt, middle clamp nut are tightened;
P, the overhang of injector assembly is detected;
If q step p occurs defective, cylinder head rolls off the production line and carries out artificial Repair;
R, the transfer of cylinder head assembly certified products are rolled off the production line.

Claims (1)

1. the assembly technology of an overhead camshaft cylinder cap assembly, is characterized in that this assembly technology comprises the steps:
Cylinder head is reached the standard grade, and the bottom surface of cylinder head down;
Press-fit the valve stem sealing ring and detect the valve stem sealing ring on cylinder head and whether be in place;
By tipper with cylinder head to 120 ° of exhaust side upsets, make the cylinder head bottom surface towards the operator, carry out the installation of inlet valve, exhaust valve, then by tipper with cylinder head to 120 ° of air inlet lateral overturnings, the bottom surface of recovering cylinder head is attitude down;
Inlet valve on the measurement cylinder head and the deflection of exhaust valve;
Be installed into valve spring, exhaust valve spring and exhaust valve inner spring on cylinder head, then whether the exhaust valve inner spring be in place and detect;
If described step b rolls off the production line immediately to step e discovery defective work, carry out artificial Repair; If need to change cylinder head, re-execute step a; If need not to change cylinder head and roll off the production line reprocess qualified after, again reach the standard grade after step e, carry out subsequent handling production;
Inlet-valve spring seat, exhaust valve spring base and inlet valve locker, exhaust valve locker carry out Auto-mounting by cotter seat and valve collet automatic assembly equipment;
In step g, cotter seat and inlet and outlet grille clip Auto-mounting occur abnormal, inlet-valve spring seat, exhaust valve spring base are by operator's manual installation, and inlet valve locker, exhaust valve locker carry out semi-automatic installation by operator and valve collet semiautomatic equipment;
The installation quality of inlet valve locker and exhaust valve locker detects;
Inlet valve and exhaust valve are patted detection;
The leakage rate of inlet valve and exhaust valve detects by revealing instrument;
If step I arbitrary procedure to the step k occurs defective, manually reprocess inlet valve locker, exhaust valve locker, inlet valve and exhaust valve by the operator on cylinder cap, re-execute step h~k after reprocessing;
Straight pin is put into the timing intermediate gear shaft, put timing idler gear assembly and thrust plate on the timing intermediate gear shaft, the straight pin aligned cylinder is covered dowel hole, with hexagon flange bolt, timing idler gear assembly pine together is screwed on cylinder head; Liner on inlet manifold cover plate pad is fastened on the air inlet pipe side with hexagon flange bolt; Hexagonal pyramidal plug screw and tightening in each dress on the hole, forward and backward both ends of the surface return flow oil road of cylinder head;
After being put injector plate, injector assembly puts in oil injector hole, again spheric washer on the injector plate bolting pad is put into plate hole, high-pressure oil pipe is taken over put into horizontal lumen pore, be pressed into successively in the oil injector hole of corresponding cylinder head with the injector assembly of injector assembly press-loading device with the first cylinder to the six cylinders;
Injector plate bolt, middle clamp nut are tightened;
Overhang to injector assembly detects;
If step p occurs defective, cylinder head rolls off the production line and carries out artificial Repair;
The transfer of cylinder head assembly certified products is rolled off the production line.
CN201310035549.XA 2013-01-30 2013-01-30 Top-mounted assembly technology of camshaft cylinder cover assembly Active CN103084834B (en)

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Application Number Priority Date Filing Date Title
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CN103084834B CN103084834B (en) 2015-01-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286555A (en) * 2013-06-13 2013-09-11 无锡威孚汽车柴油系统有限公司 Method for screwing down oil injector assembly
CN106695318A (en) * 2016-11-22 2017-05-24 东莞理工学院 Automatic assembly mechanism of gear oil injector box body
CN109048324A (en) * 2018-08-23 2018-12-21 温州市贝佳福自动化技术有限公司 Power motor core component and its assembly technology

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JP2011058453A (en) * 2009-09-11 2011-03-24 Tokyo Energy & Systems Inc Inverting device for cylinder cover
CN201826967U (en) * 2010-08-18 2011-05-11 长城汽车股份有限公司 Cylinder cover assembly
FR2977515A1 (en) * 2011-07-07 2013-01-11 Peugeot Citroen Automobiles Sa Device for positioning bearing caps on cylinder housing or cylinder head of thermal combustion engine of car, has temporary attachment unit provided with cylinder housing, and adjustment units adjusting position of bearing caps
CN202668049U (en) * 2012-07-18 2013-01-16 大连智云自动化装备股份有限公司 Cylinder head assembly automatic assembly line

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JPH01228741A (en) * 1988-03-09 1989-09-12 Honda Motor Co Ltd Engine assembly line
JPH0259238A (en) * 1988-08-24 1990-02-28 Mazda Motor Corp Assembler for engine cover
JPH08150525A (en) * 1994-11-25 1996-06-11 Kawasaki Heavy Ind Ltd Method of assembling cylinder head assembly and assembling device
CN200957498Y (en) * 2006-10-27 2007-10-10 大连智云机床辅机有限公司 Apparatus for assembling cylinder cap air-door spring end and locking plate
CN201003431Y (en) * 2007-01-26 2008-01-09 重庆红旗缸盖制造有限公司 Minisize vehicle sixteen valve double top cam cylinder head assembly
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286555A (en) * 2013-06-13 2013-09-11 无锡威孚汽车柴油系统有限公司 Method for screwing down oil injector assembly
CN106695318A (en) * 2016-11-22 2017-05-24 东莞理工学院 Automatic assembly mechanism of gear oil injector box body
CN106695318B (en) * 2016-11-22 2018-10-19 东莞理工学院 A kind of automatic assembling mechanism of gear oil syringe babinet
CN109048324A (en) * 2018-08-23 2018-12-21 温州市贝佳福自动化技术有限公司 Power motor core component and its assembly technology

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