CN106863219B - Profiling tool for preventing valve collet from falling into cylinder cover - Google Patents

Profiling tool for preventing valve collet from falling into cylinder cover Download PDF

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Publication number
CN106863219B
CN106863219B CN201710209746.7A CN201710209746A CN106863219B CN 106863219 B CN106863219 B CN 106863219B CN 201710209746 A CN201710209746 A CN 201710209746A CN 106863219 B CN106863219 B CN 106863219B
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China
Prior art keywords
profiling
cylinder cover
falling
valve collet
bottom plate
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CN201710209746.7A
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CN106863219A (en
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王小娟
袁震
陈鹏
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SAIC GM Wuling Automobile Co Ltd
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SAIC GM Wuling Automobile Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B29/00Accessories
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The invention belongs to the field of engines, and particularly relates to a profiling tool for preventing a valve collet from falling into a cylinder cover. The profiling tool for preventing the valve collet from falling into the cylinder cover comprises a bottom plate, a positioning pin fixed in the middle of the bottom plate and a profiling support fixed on the bottom plate, wherein the profiling support is used for covering holes in the surface of the cylinder cover and comprises a first profiling support and a second profiling support, and a plurality of mounting holes for mounting the valve spring, a spring seat or the valve collet are reserved in the bottom plate. The invention can effectively prevent the valve collet from falling into the cylinder cover, and greatly improves the production efficiency of the engine.

Description

Profiling tool for preventing valve collet from falling into cylinder cover
Technical Field
The invention belongs to the field of engines, and particularly relates to a profiling tool for preventing a valve collet from falling into a cylinder cover.
Background
The valve lock clamp is matched with the valve spring seat, and the valve is locked and locked on the valve seat ring of the cylinder cover by utilizing the elasticity of the valve spring so as to ensure the sealing performance of the engine gas distribution system. In the mainstream engine in the current market, each valve is matched with 2 valve locking clamps, and taking a four-stroke four-valve engine as an example, one engine needs to be provided with 32 valve locking clamps. The valve collet is small in appearance, and is large in quantity, so that the valve collet is difficult to fall into a cylinder cover in the installation process, an inner cavity of the cylinder cover is a casting cavity and is irregular in shape, and the valve collet is difficult to find once falling into the inner cavity of the cylinder cover due to interference of parts such as a valve spring, a valve oil seal and the like. At present, in a main stream engine assembly line in China, a production line is generally provided with valve lock clamp laser detection equipment and a material vibration station so as to detect the installation state of the valve lock clamp and vibrate redundant parts in a cylinder cover. In addition, there are no other measures to prevent the valve collet from falling into the cylinder head. Once the valve collet remains in the cylinder cover body, the engine starts to cause the faults of valve spring fracture, engine air leakage, engine oil channeling into a combustion chamber and the like, and serious tragedies possibly causing car damage and death.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention aims to solve the technical problems that: the technical problem of valve collet fall into the cylinder cap when solving installation valve collet among the prior art, provides a profile modeling frock that prevents that valve collet from falling into the cylinder cap, include the bottom plate, be fixed in the locating pin in the middle of the bottom plate and the profile modeling support of welding on the bottom plate through the mounting, the profile modeling support is used for covering the surperficial hole of cylinder cap, the profile modeling support includes first profile modeling support and second profile modeling support, the quantity of first profile modeling support is 6, just the shape of 6 first profile modeling supports is unanimous, the quantity of second profile modeling support is 4, just the shape diverse of 4 second profile modeling supports.
And a plurality of mounting holes for mounting the valve spring, the spring seat or the valve lock clamp are reserved on the bottom plate. The profiling bracket covers a hole on the upper surface of the engine cylinder cover to prevent the valve lock clamp from falling into the inner cavity of the cylinder cover from the hole, and the profiling tool is provided with a mounting hole in advance, so that the mounting of the valve spring, the spring seat and the valve lock clamp is not influenced.
As a further improvement of the invention, the first profiling bracket comprises two rectangular panels which are parallel to each other and have different widths and two isosceles trapezoid panels which have the same size, the parallel short sides of the two isosceles trapezoid panels are connected, an included angle is formed between the two isosceles trapezoid panels, the parallel long sides of the two isosceles trapezoid panels are respectively connected with the long sides of the rectangular panels, one isosceles trapezoid panel is vertically connected with the large rectangular panel, and the length of the rectangular panel is larger than that of the parallel long sides of the isosceles trapezoid panels. The first profiling support is used for shielding a hole in the cylinder cover.
As a further improvement of the invention, the 4 second profiling brackets are respectively positioned at four corners of the bottom plate and are matched with irregular holes on the cylinder cover, the first profiling brackets are uniformly distributed on the bottom plate and are used for covering regular holes on the surface of the cylinder cover, and the fixing holes are uniformly distributed among the profiling brackets.
As a further improvement of the invention, the positioning pins are fixed in the middle of the bottom plate from top to bottom through bolts, the number of the positioning pins is not less than 2, the positioning pins are lengthened positioning pins, and the positioning pins are made of nylon.
As a further improvement of the invention, the profiling tool for preventing the valve collet from falling into the cylinder cover further comprises a handle fixed on the bottom plate through a fixing mechanism, and the handle is used for installing and disassembling the profiling tool for preventing the valve collet from falling into the cylinder cover.
As a further improvement of the invention, the material of the bottom plate, the profiling bracket and the handle is 45# steel, and blackening treatment is carried out. The profiling tool subjected to blackening treatment forms bright visual contrast with the silvery valve collet, and the position state of the valve collet is easier to clearly distinguish.
As a further improvement of the invention, the number of the mounting holes is 8. The mounting hole is positioned to align with a valve spring, a spring seat or a valve collet.
The invention has the beneficial effects that: the invention solves the technical problem of engine repair caused by the falling of the valve collet into the cylinder cover when the valve collet is installed, and improves the production efficiency and the manufacturing quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a surface view of a cylinder head;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic structural view of a first conformable stent;
FIG. 5 is a schematic structural view of a first and second conformable mount;
FIG. 6 is a schematic structural view of a second conformable mount;
FIG. 7 is a schematic structural view of a third second conformable mount;
FIG. 8 is a schematic structural view of a fourth second conformable mount;
wherein the numbers indicate: a base plate 00; a first contoured support 01; a regular pore 010; a first second contoured support 02; a first irregular aperture 020; a second conformable mount 03; a second irregular aperture 030; a third second contoured mount 04; the third irregular aperture 040; a fourth second profiling stent 05; a fourth irregular aperture 050; a handle 06; a positioning pin 07; a spark plug mounting hole 070; a cylinder head 08; mounting holes 09;
Detailed Description
The invention is further described in the following description and embodiments with reference to the drawings.
As shown in fig. 1 to 8, the invention includes a base plate 00, profiling brackets welded on the base plate 00, and positioning pins 07 fixed on the base plate 00 from top to bottom by bolts for installing and guiding the profiling fixture, wherein the profiling brackets include 6 first profiling brackets 01 and 4 second profiling brackets, and a digital-analog system is fully used for performing interference analysis on the surface of the cylinder head 08 by using the digital-analog system to determine 4 second profiling brackets; the second profile modeling support includes first second profile modeling support 02, second profile modeling support 03, third second profile modeling support 04, fourth second profile modeling support 05, first second profile modeling support 02, second profile modeling support 03, third second profile modeling support 04, fourth second profile modeling support 05 weld respectively on four angles of bottom plate 00, 6 first profile modeling supports 01 evenly weld on bottom plate 00, and be equipped with the mounting hole 09 that is used for installing valve spring, spring holder and valve collet in the middle of two quantity profile modeling supports side by side, the mounting hole slightly has the difference according to the difference of engine model.
As shown in fig. 4, the first copying bracket 01 includes two rectangular panels parallel to each other and having different widths and two isosceles trapezoid panels having the same size, the parallel short sides of the two isosceles trapezoid panels are connected, and an included angle is formed between the two isosceles trapezoid panels, the parallel long sides of the two isosceles trapezoid panels are connected to the long sides of the rectangular panels respectively, one of the isosceles trapezoid panels is connected to the large rectangular panel vertically, and the length of the rectangular panel is larger than the length of the parallel long sides of the isosceles trapezoid panels.
As shown in fig. 5, in the first second copying frames 02, compared with the first copying frame 01, the panel connecting the two rectangular panels is a right-angled trapezoidal panel.
As shown in fig. 6, the second copying frames 03 differ from the first second copying frames 02 in that the second copying frames 03 are elongated versions of the first second copying frames 02.
As shown in fig. 4 to 8, the profiling brackets are formed by welding a plurality of panels with different shapes or by punching one panel, and the edges and corners of the profiling brackets and the bottom plate 00 are polished smooth to prevent the profiling fixture from scratching the cylinder cover 08 when the profiling fixture is mounted on the cylinder cover 08. The material of profile modeling support and bottom plate 00 is that 45# steel processing blackening forms, the thickness of bottom plate 00 and profile modeling support is very thin, has also guaranteed the quality of profile modeling frock when guaranteeing profile modeling frock hardness, makes it can not lead to the installation, dismantle inconveniently because of the profile modeling frock is too heavy to and lead to taking place deformation because of profile modeling frock own quality is too heavy for the pore on profile modeling frock and the cylinder cap 08 does not agree with, and has the valve collet to drop in the cylinder cap from the gap. And the profiling tool made of metal also ensures that no material fragments are generated when the profiling tool rubs and collides with the aluminum cylinder cover, and ensures that no fragments fall into the cylinder cover to pollute the cylinder cover.
Locating pin 07 is fixed in bottom plate 00 centre from last through the bolt down, sees the bolt head that can direct observation bolt from bottom plate 00 to guarantee using the state that the operative employee can be carved the bolt at all times in the in-process of profile modeling frock is used to prevent that the bolt pine from taking off and falling into inside the cylinder cap, damaging the cylinder cap. The number of the positioning pins 07 is not less than 2, the positioning pins 07 are lengthened positioning pins 07, the positioning pins 07 are made of nylon, and the nylon is light and firm and is particularly suitable for being installed on the thin bottom plate 00.
A U-shaped handle 06 is installed on the bottom plate 00, and wear-resistant and anti-skid protection is carried out at the handle 06 for facilitating installation and disassembly of a profiling tool by an operator. The handle 06 is also cast from 45# steel and then blackened.
As shown in fig. 1 and 2, the first profile bracket 01 covers 010 holes of a cylinder cover 08, the first second profile bracket 02 covers 020 holes of the cylinder cover 08, the second profile bracket 03 covers 030 holes of the cylinder cover 08, the third second profile bracket 04 covers 040 holes of the cylinder cover 08, and the fourth second profile bracket 05 covers 050 holes of the cylinder cover 08; the positioning pin 06 is inserted into the spark plug mounting hole 070 on the cylinder cover 08 and used for guiding and positioning the installed profiling tool. The profiling bracket shields the pore on the upper surface of the cylinder cover, and meanwhile, a mounting hole 09 for mounting the valve spring, the spring seat and the valve collet is reserved; when preventing that the valve collet from dropping to the cylinder cap, do not cause the influence again to the operation of station.
The profiling tool is not subjected to the event that the locking nail falls into the cylinder cover in the experimental process of one year. The reduced maintenance cost is 570.00, and the reduced engine scrapping cost is 14570.00. And a large amount of manpower and material resources are saved. And the profiling tool is compatible with various engine models such as B150/B12T/B15T and the like, and has stronger flexibility. The positioning pin 06 is used for positioning, the reliability is high, the maintenance is convenient, the operation is simple, the swinging of the profiling tool on the cylinder cover is avoided, and meanwhile, the collision and scratch of the profiling tool on the cylinder cover are avoided. The profiling tool is light and simple, is simple to operate, and does not cause extra burden to an operator at the valve collet installation station. The risk that the valve collet falls into the cylinder cover is fundamentally avoided, the complaint of the events after the market is eradicated, and the assembly quality of the automobile industry is greatly improved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (8)

1. A profiling tool for preventing a valve collet from falling into a cylinder cover is characterized by comprising a bottom plate, a positioning pin fixed in the middle of the bottom plate and a profiling support fixed on the bottom plate, wherein the profiling support is used for covering a hole on the surface of the cylinder cover and comprises a first profiling support and a second profiling support, and a plurality of mounting holes for mounting a valve spring, a spring seat or the valve collet are reserved on the bottom plate; first profile modeling support includes two rectangle panels that are parallel to each other and the width is unequal and two isosceles trapezoid panels that the size is the same, and the parallel minor face of two isosceles trapezoid panels meets, and has the contained angle between two isosceles trapezoid panels, the parallel long limit of two isosceles trapezoid panels meets with the long limit of rectangle panel respectively, and one of them isosceles trapezoid panel and two big rectangle panel in the rectangle panel meets perpendicularly, the length on long limit of rectangle panel is greater than the length on the parallel long limit of isosceles trapezoid panel.
2. A profiling tool for preventing a valve collet from falling into a cylinder head according to claim 1, wherein the number of the first profiling supports is 6, the shapes of the first profiling supports are the same, and the number of the second profiling supports is 4, and the shapes of the second profiling supports are different.
3. A profiling tool for preventing a valve collet from falling into a cylinder cover according to claim 2, wherein the 4 second profiling brackets are respectively positioned at four corners of the bottom plate, and the 4 second profiling brackets are shaped to respectively cover 4 irregular holes in the cylinder cover.
4. A profiling tool for preventing an air valve collet from falling into a cylinder cover according to claim 1, wherein the positioning pins are fixed in the middle of a bottom plate from top to bottom through bolts, and the number of the positioning pins is not less than 2.
5. The profiling fixture for preventing the valve collet from falling into the cylinder cover according to any one of claims 1 to 4, further comprising a handle fixed on the bottom plate, wherein the handle is used for mounting and dismounting the profiling fixture for preventing the valve collet from falling into the cylinder cover.
6. The profiling tool for preventing the valve collet from falling into the cylinder cover according to any one of claims 1 to 4, wherein the positioning pin is made of nylon.
7. The profiling tool for preventing the valve collet from falling into the cylinder cover according to any one of claims 1 to 4, wherein the material of the base plate, the profiling bracket and the handle is blackening 45# steel.
8. The profiling tool for preventing the valve collet from falling into the cylinder head according to any one of claims 1 to 4, wherein the number of the mounting holes is 8, and the mounting holes are uniformly distributed among the profiling brackets.
CN201710209746.7A 2017-03-31 2017-03-31 Profiling tool for preventing valve collet from falling into cylinder cover Active CN106863219B (en)

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CN106863219B true CN106863219B (en) 2023-03-14

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202212924U (en) * 2011-07-21 2012-05-09 广西玉柴机器股份有限公司 Assembling and disassembling tool for four-valve engine valve lock clamp
CN203357365U (en) * 2013-06-24 2013-12-25 玉柴联合动力股份有限公司 Tool for disassembling and assembling valve key of engine
CN203614225U (en) * 2013-11-21 2014-05-28 潍柴动力股份有限公司 Protective device used for engine
JP2015121115A (en) * 2013-12-20 2015-07-02 三菱自動車工業株式会社 Cylinder head structure
CN205010646U (en) * 2015-08-24 2016-02-03 上汽通用五菱汽车股份有限公司 Camshaft bearing lid tray of compatible multiple cylinder cap
CN205033148U (en) * 2015-10-12 2016-02-17 玉柴联合动力股份有限公司 Prevent mistake proofing frock of engine valve misloading
CN205200967U (en) * 2015-12-07 2016-05-04 齐乐伟 Jacking and turning device of three -flute valve collet engine cylinder lid
CN205520618U (en) * 2016-04-20 2016-08-31 重庆长安汽车股份有限公司 Cylinder head processing positioning fixture
CN207087781U (en) * 2017-03-31 2018-03-13 上汽通用五菱汽车股份有限公司 A kind of profiling fixture for preventing valve collet from falling into cylinder cap

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202212924U (en) * 2011-07-21 2012-05-09 广西玉柴机器股份有限公司 Assembling and disassembling tool for four-valve engine valve lock clamp
CN203357365U (en) * 2013-06-24 2013-12-25 玉柴联合动力股份有限公司 Tool for disassembling and assembling valve key of engine
CN203614225U (en) * 2013-11-21 2014-05-28 潍柴动力股份有限公司 Protective device used for engine
JP2015121115A (en) * 2013-12-20 2015-07-02 三菱自動車工業株式会社 Cylinder head structure
CN205010646U (en) * 2015-08-24 2016-02-03 上汽通用五菱汽车股份有限公司 Camshaft bearing lid tray of compatible multiple cylinder cap
CN205033148U (en) * 2015-10-12 2016-02-17 玉柴联合动力股份有限公司 Prevent mistake proofing frock of engine valve misloading
CN205200967U (en) * 2015-12-07 2016-05-04 齐乐伟 Jacking and turning device of three -flute valve collet engine cylinder lid
CN205520618U (en) * 2016-04-20 2016-08-31 重庆长安汽车股份有限公司 Cylinder head processing positioning fixture
CN207087781U (en) * 2017-03-31 2018-03-13 上汽通用五菱汽车股份有限公司 A kind of profiling fixture for preventing valve collet from falling into cylinder cap

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