CN102601613B - Assembly tooling for diesel engine valve collet - Google Patents
Assembly tooling for diesel engine valve collet Download PDFInfo
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- CN102601613B CN102601613B CN201210072506.4A CN201210072506A CN102601613B CN 102601613 B CN102601613 B CN 102601613B CN 201210072506 A CN201210072506 A CN 201210072506A CN 102601613 B CN102601613 B CN 102601613B
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- pressure head
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- diesel engine
- collet
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Abstract
The invention discloses an assembly tooling for a diesel engine valve collet, which comprises a forked pressure head, wherein an opening of the forked pressure head is smaller than a horizontal size of a valve spring upper base and used for pressing down the valve spring upper base, and the opening of the forked pressure head is at least larger than a stem outer diameter of a valve stem for installing the valve collet. In use, a pressure towards the valve spring upper base is applied to the forked pressure head, the spring is compressed and three ring slots are exposed, three annular bulges on two flaps of the valve collet are embedded in three rings and the valve collet is formed as one piece, the forked pressure head releases the valve spring upper base, and the valve spring upper base is externally sleeved on the valve collet outer circle under the spring action. With the assembly tooling, positioning and assembling can be rapidly carried out; the coaxiality of the valve collet, the valve spring upper base and the valve stem can be ensured; the direction of the spring force can be made to meet the stem movement requirement; the assembled valve system can be ensured to accord with the operating condition of the diesel engine; the working efficiency in assembly can be increased; and the assembly tooling is especially suitable for the assembling requirement of batch production of multi-valve diesel engines.
Description
Technical field
The present invention relates to a kind of servicing unit due to plant equipment assembling, particularly a kind of assembly aid for Diesel engine valve assembly.
Background technology
The valve of engine is the access way of combustion chamber gas, realizes at work the keying of valve by reciprocating motion, during motion, will bear great alternation and shock loading.In prior art, closing by valve spring of valve completes, spring is carried out spacing transmission and is closed the pretightning force of valve by cotter seat, valve collet is that valve spring upper seat is carried out to spacing parts, for guaranteeing that spring is used for closing the pretightning force of valve; Due to the Main Function of valve collet be by valve spring upper seat to upper limit, thereby whether the mounting structure of valve collet has good axiality, spring pre-tightening force direction and valve-closing for valve spring upper seat and whether aligns the larger effect of playing.
In prior art, for guaranteeing that valve spring upper seat and valve stem have good axiality, thereby make spring pre-tightening force direction guarantee the smooth and easy keying of valve, valve collet install after by up big and down small conical outer surface restriction valve spring upper seat to top offset, there is good automatic centering effect.
Diesel engine is because cylinder pressure is higher, its valve collet is two lobes that axially separate, inner surface forms three road annular protrusions, and valve stem corresponding site forms three roads and annular protrusion three road annular grooves one to one, annular protrusion embeds three road annular grooves by valve collet axial restraint, meanwhile, it is radially fixing to its two lobe that valve spring upper seat is coated at valve collet, avoids scattering; Three road groove structural designs have good locating effect, be adapted to the operating mode of diesel engine, but comparatively difficulty is installed, if adopt the normally used method that is pressed into valve end together with the spring seat of honour, the taper hole diameter that the external diameter of complete locker after by valve stem end distending is far longer than the spring seat of honour is installed, the rod slot reliability interior and that cause locker to assemble that two lobe valve collets cannot accurately be contained in valve end is low, and axiality is poor, affects the smooth and easy operation of valve; And efficiency of assembling is comparatively low.
Therefore, need to improve the mode of existing valve system assembling, be applicable to the assembling of diesel engine spiracle locker, can locate fast and install, in assembling process, can guarantee the axiality between valve collet, valve spring upper seat and valve stem, make the direction of spring force meet push rod motion requirement, guarantee the operating condition of the valve system compound diesel machine after assembling, improve assembly work efficiency, be suitable for the needs of batch production assembling.
Summary of the invention
In view of this, the invention provides the assembly tooling of a kind of Diesel engine valve collet, be applicable to the assembling of diesel engine spiracle locker, can locate fast and install, in assembling process, can guarantee the axiality between valve collet, valve spring upper seat and valve stem, make the direction of spring force meet push rod motion requirement, guarantee that the valve system after assembling meets the operating condition of diesel engine, improve assembly work efficiency, be suitable for the needs of batch production assembling.
Diesel engine valve collet of the present invention assembly tooling, comprise fork-shaped pressure head, the opening of described fork-shaped pressure head is less than the lateral dimension of valve spring upper seat and for pressing down valve spring upper seat, the opening of fork-shaped pressure head is at least greater than valve stem for the bar section external diameter of valve collet is installed.
Further, the opening of described fork-shaped pressure head is greater than that valve collet is installed on maximum gauge after valve stem and for be installed on the overall structure forming after valve stem by valve collet;
Further, also comprise the support for supporting fork-shaped pressure head and the driving mechanism for driving fork-shaped pressure head to move up and down; Described support is provided with and for holding workpieces and by workpiece, is positioned fork-shaped pressure head bottom and makes inlet valve or/and the just base to fork-shaped pressure head of exhaust valve;
Further, described support is also provided with pressure head mount pad, fork-shaped pressure head is provided with upwards and extends and be fixed with guide post, described guide post coordinates with the guide holder arranging on pressure head mount pad in the mode of can slide up and down, described driving mechanism comprises connecting rod and driving handle, described driving handle end is articulated with pressure head mount pad, and connecting rod one end is articulated with driving handle stage casing, and the other end is articulated with guide post upper end and is formed for the toggle that drives guide post to slide up and down along guide holder;
Further, described support is also provided with horizontal guide rail, and described pressure head mount pad is provided with the slide block coordinating with horizontal guide rail, described pressure head mount pad by slide block moving and the mode of locating is arranged at horizontal guide rail along the orientation of workpiece valve;
Further, described base is provided with for the workpiece supporting plate to workpiece support location, described horizontal guide rail is arranged at support by backboard, on described backboard, be distributed with locating hole, described pressure head mount pad is provided with for coordinating with locating hole the alignment pin of pressure head mount pad horizontal location, described alignment pin inserts after locating hole, and described fork-shaped pressure head is just to workpiece inlet valve push rod upper end or exhaust valve push rod upper end;
Further, described workpiece supporting plate is at least arranged at base in mode that can 180 ° of rotations of level, described workpiece supporting plate be provided with for the back-up block of supporting workpiece and for the Workpiece structure alignment pin that it is positioned that adapts;
Further, the alignment pin II that described alignment pin comprises the arranged side by side alignment pin I locating when being installed into valve collet up and down and locates when exhaust valve locker is installed; Corresponding with it, described locating hole is included as two rows, and upper row is the locating hole I for coordinating with alignment pin I, and lower row is the locating hole II for coordinating with alignment pin II;
Further, described guide post along guide holder to slide up and down direction consistent with inlet valve push rod and the exhaust valve push rod direction of motion, the opening direction of described fork-shaped pressure head is vertical with the exhaust valve push rod direction of motion with inlet valve push rod;
Further, backboard is provided with for preventing that to the horizontal slip of pressure head mount pad is spacing it from skidding off the limited block of horizontal guide rail.
Beneficial effect of the present invention: Diesel engine valve collet of the present invention assembly tooling, adopt fork-shaped pressure head structure, and the opening of fork-shaped pressure head be less than valve spring upper seat lateral dimension and and be greater than two lobe valve collets and be installed on the maximum gauge after valve stem; During use, fork-shaped pressure head is applied to pressure the Compress Spring to valve spring upper seat, valve stem Shang tri-road annular grooves are exposed, two lobe Shang tri-road annular protrusions of valve collet are embedded in to three road rings and make valve collet form entirety, fork-shaped pressure head discharges valve spring upper seat, valve spring upper seat is coated at valve collet cylindrical under spring action, completes installation; As can be seen here, the present invention is applicable to the assembling of diesel engine spiracle locker, can locate fast and install, in assembling process, make two lobes of valve collet just right respectively at three road annular grooves, can guarantee the axiality between valve collet, valve spring upper seat and valve stem, make the direction of spring force meet push rod motion requirement, guarantee the operating condition of the valve system compound diesel machine after assembling, improve assembly work efficiency, be specially adapted to the needs of many valve diesel batch production assemblings.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is understructure schematic diagram of the present invention;
Fig. 3 is installation process structural representation of the present invention;
Fig. 4 is that horizontal guide rail coordinates cross-sectional structure with slide block.
The specific embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is understructure schematic diagram of the present invention, Fig. 3 is installation process structural representation of the present invention, Fig. 4 is that horizontal guide rail coordinates cross-sectional structure with slide block, as shown in the figure: the Diesel engine valve collet assembly tooling of the present embodiment, comprise fork-shaped pressure head 2, the opening of described fork-shaped pressure head 2 is less than the lateral dimension of valve spring upper seat 28 and for pressing down valve spring upper seat 28, the opening of fork-shaped pressure head 2 is at least greater than valve stem 29 for the bar section external diameter of valve collet 30 is installed, fork-shaped pressure head 2 is for pressing down valve spring upper seat 28 and exposing valve stem 29 for the end of valve collet 30 is installed, and the opening of fork-shaped pressure head 2 is at least greater than the external diameter of this end, the drives structure of fork-shaped pressure head 2 can be manually, can be also the structure such as electronic, pneumatic.
In the present embodiment, the opening of described fork-shaped pressure head 2 is greater than that valve collet 30 is installed on maximum gauge after valve stem 29 and for be installed on the overall structure of valve stem 29 rear formation by valve collet 30; Can move at the rear easy on and off of installation valve collet 30, not interfere, be beneficial to and simplify mounting structure and installation process.
In the present embodiment, also comprise the support 14 for supporting fork-shaped pressure head 2 and the driving mechanism for driving fork-shaped pressure head 2 to move up and down; Described support 14 is provided with and for holding workpieces 1 and by workpiece 1, is positioned fork-shaped pressure head 2 bottoms and makes inlet valve or/and the just base 17 to fork-shaped pressure head 2 of exhaust valve; Adopt upper and lower driving mechanism to drive fork-shaped pressure head 2, be easy to make accurate work piece positioning simultaneously, be beneficial to and increase work efficiency.
In the present embodiment, described support 14 is also provided with pressure head mount pad 7, fork-shaped pressure head 2 is provided with upwards and extends and be fixed with guide post 3, described guide post 3 coordinates with the guide holder 18 arranging on pressure head mount pad 7 in the mode of can slide up and down, fork-shaped pressure head 2 direction that moves up and down is better controlled, thereby guaranteed installation accuracy and to be that installation process is smooth and easy carry out; Described driving mechanism comprises connecting rod 5 and driving handle 4, described driving handle 4 ends are articulated with pressure head mount pad 7, connecting rod 5 one end are articulated with driving handle 4 stage casings, and the other end is articulated with guide post 3 upper ends and is formed for the toggle that drives guide post 3 to slide up and down along guide holder 18; Utilize toggle to drive fork-shaped pressure head 2 to pump, drives structure is simple, laborsaving and simplify assembling process, and brace and connecting rod framework drives smooth and easy, and accurate positioning is beneficial to and makes that assembling process is smooth and easy carries out.
In the present embodiment, described support 14 is also provided with horizontal guide rail 12, described pressure head mount pad 7 is provided with the slide block 8 coordinating with horizontal guide rail, described pressure head mount pad 7 by slide block 8 moving and the mode of locating is arranged at horizontal guide rail 12 along workpiece 1 valve orientation; Be applicable to Diesel engine multi cylinder structure, during installation, according to valve position transverse shifting pressure head mount pad 7, and carry out machinery location, be beneficial to valve collet is installed successively; Certainly, can distribute corresponding many fork-shaped pressure heads 2 are directly set according to valve, directly press down simultaneously and install the rear rise simultaneously of valve collet 30, there is higher operating efficiency.
In the present embodiment, described base 17 is provided with the workpiece supporting plate 16 for workpiece 1 is supported and located, described horizontal guide rail 12 is arranged at support 14 by backboard 15, on described backboard 15, be distributed with locating hole, described pressure head mount pad 7 is provided with for coordinating with locating hole the alignment pin of pressure head mount pad 7 horizontal location, described alignment pin inserts after locating hole, and described fork-shaped pressure head is just to workpiece inlet valve push rod upper end or exhaust valve push rod upper end; Location structure is simple and convenient, processing ease.
In the present embodiment, described workpiece supporting plate 16 is at least arranged at base 17 in mode that can 180 ° of rotations of level, in the present embodiment, described workpiece supporting plate 16 horizontally rotates 180 °, the valve of other row can be placed under fork-shaped pressure head, described workpiece supporting plate 16 be provided with for the back-up block of supporting workpiece 1 and for the workpiece 1 structure alignment pin that it is positioned that adapts, shown in figure, locating piece 25 and locating piece 27, alignment pin 22 and alignment pin 26, location structure is simple, can configure the parts such as different alignment pins according to the different structure of cylinder head; As shown in the figure, between workpiece supporting plate 16 and base 17, by locating shaft 23 and locating shaft 24, position, locating shaft limits its horizontal free degree through location supporting plate, when needs rotate 180 °, after directly lifting workpiece supporting plate 16 and being rotated 180 °, install again, simple to operation; Certainly, can be also automatically to drive the structure of rotating.
In the present embodiment, the alignment pin II10 that described alignment pin comprises the arranged side by side alignment pin I 9 locating when being installed into valve collet up and down and locates when exhaust valve locker is installed; Corresponding with it, described locating hole is included as two rows, and upper row is the locating hole I20 for coordinating with alignment pin I9, and lower row is the locating hole II19 for coordinating with alignment pin II10; By two rows locating hole structure, avoid producing location and interfere, make location comparatively accurate; As shown in the figure, alignment pin I9 and alignment pin II10 all adopt the elastic sliding latch structure of prior art, easy to operate.
In the present embodiment, described guide post 3 along guide holder to slide up and down direction consistent with inlet valve push rod and the exhaust valve push rod direction of motion, the opening direction of described fork-shaped pressure head 2 is vertical with the exhaust valve push rod direction of motion with inlet valve push rod; Make fork-shaped pressure head 2 press down direction consistent with valve event direction, be beneficial to assurance installation accuracy.
In the present embodiment, backboard 14 is provided with for to the spacing limited block 21 that prevents that it from skidding off horizontal guide rail of pressure head mount pad 8 horizontal slips.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. Diesel engine valve collet assembly tooling, it is characterized in that: comprise fork-shaped pressure head, the opening of described fork-shaped pressure head is less than the lateral dimension of valve spring upper seat and for pressing down valve spring upper seat, the opening of fork-shaped pressure head is at least greater than valve stem for the bar section external diameter of valve collet is installed;
Also comprise the support for supporting fork-shaped pressure head and the driving mechanism for driving fork-shaped pressure head to move up and down, described support is provided with and for holding workpieces and by workpiece, is positioned fork-shaped pressure head bottom and makes inlet valve or/and the just base to fork-shaped pressure head of exhaust valve; Described support is also provided with pressure head mount pad, fork-shaped pressure head is provided with upwards and extends and be fixed with guide post, described guide post coordinates with the guide holder arranging on pressure head mount pad in the mode of can slide up and down, described driving mechanism comprises connecting rod and driving handle, described driving handle end is articulated with pressure head mount pad, connecting rod one end is articulated with driving handle stage casing, and the other end is articulated with guide post upper end and is formed for the toggle that drives guide post to slide up and down along guide holder.
2. Diesel engine valve collet according to claim 1 assembly tooling, is characterized in that: the opening of described fork-shaped pressure head is greater than that valve collet is installed on maximum gauge after valve stem and for be installed on the overall structure forming after valve stem by valve collet.
3. Diesel engine valve collet according to claim 2 assembly tooling, it is characterized in that: described support is also provided with horizontal guide rail, described pressure head mount pad is provided with the slide block coordinating with horizontal guide rail, described pressure head mount pad by slide block moving and the mode of locating is arranged at horizontal guide rail along the orientation of workpiece valve.
4. Diesel engine valve collet according to claim 3 assembly tooling, it is characterized in that: described base is provided with for the workpiece supporting plate to workpiece support location, described horizontal guide rail is arranged at support by backboard, on described backboard, be distributed with locating hole, described pressure head mount pad is provided with for coordinating with locating hole the alignment pin of pressure head mount pad horizontal location, described alignment pin inserts after locating hole, and described fork-shaped pressure head is just to workpiece inlet valve push rod upper end or exhaust valve push rod upper end.
5. Diesel engine valve collet according to claim 4 assembly tooling, it is characterized in that: described workpiece supporting plate is at least arranged at base in mode that can 180 ° of rotations of level, described workpiece supporting plate be provided with for the back-up block of supporting workpiece and for the Workpiece structure alignment pin that it is positioned that adapts.
6. Diesel engine valve collet according to claim 5 assembly tooling, is characterized in that: the alignment pin II that described alignment pin comprises arranged side by side alignment pin I of locating when being installed into valve collet up and down and locates when exhaust valve locker is installed; Corresponding with it, described locating hole is included as two rows, and upper row is the locating hole I for coordinating with alignment pin I, and lower row is the locating hole II for coordinating with alignment pin II.
7. Diesel engine valve collet according to claim 6 assembly tooling, it is characterized in that: described guide post along guide holder to slide up and down direction consistent with inlet valve push rod and the exhaust valve push rod direction of motion, the opening direction of described fork-shaped pressure head is vertical with the exhaust valve push rod direction of motion with inlet valve push rod.
8. Diesel engine valve collet according to claim 7 assembly tooling, is characterized in that: backboard is provided with for preventing that to the horizontal slip of pressure head mount pad is spacing it from skidding off the limited block of horizontal guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072506.4A CN102601613B (en) | 2011-12-30 | 2012-03-19 | Assembly tooling for diesel engine valve collet |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110453899 | 2011-12-30 | ||
| CN201110453899.9 | 2011-12-30 | ||
| CN201210072506.4A CN102601613B (en) | 2011-12-30 | 2012-03-19 | Assembly tooling for diesel engine valve collet |
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| Publication Number | Publication Date |
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| CN102601613A CN102601613A (en) | 2012-07-25 |
| CN102601613B true CN102601613B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210072506.4A Active CN102601613B (en) | 2011-12-30 | 2012-03-19 | Assembly tooling for diesel engine valve collet |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440080B (en) * | 2014-11-20 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Installation device for engine valve spring upper gasket and lock clamp |
| CN106736358A (en) * | 2016-12-19 | 2017-05-31 | 汽-大众汽车有限公司 | A kind of valve split collets Assembly And Disassembly device |
| CN107398712B (en) * | 2017-08-31 | 2019-03-08 | 安徽江淮汽车集团股份有限公司 | A kind of engine multi-model valve lock clamp pressing device |
| CN109176008B (en) * | 2018-11-01 | 2023-09-12 | 杭州景业智能科技股份有限公司 | Lock beam automatic assembly equipment and method |
| CN113231807A (en) * | 2021-06-15 | 2021-08-10 | 河北华北柴油机有限责任公司 | Press mounting device for engine valve lock clamp |
| CN115351536B (en) * | 2022-09-03 | 2023-12-12 | 太原中北新缘科技中心(有限公司) | Assembling device and method for rotating shaft of ophthalmic equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63267133A (en) * | 1987-04-21 | 1988-11-04 | Fuji Heavy Ind Ltd | Collet assembling device |
| IT1291200B1 (en) * | 1997-03-18 | 1998-12-29 | Comau Spa | PROCEDURE AND DEVICE FOR AUTOMATED ASSEMBLY OF THE SEMICONES OF A VALVE OF AN INTERNAL COMBUSTION ENGINE. |
| JP4033703B2 (en) * | 2002-04-24 | 2008-01-16 | 平田機工株式会社 | Cotta mounting device |
| CN2877952Y (en) * | 2006-04-06 | 2007-03-14 | 力帆实业(集团)有限公司 | Assembling machine for engine valve lock |
| CN202070894U (en) * | 2011-04-12 | 2011-12-14 | 重庆宗申发动机制造有限公司 | Lock clamp press |
| CN102225541A (en) * | 2011-04-14 | 2011-10-26 | 刘正东 | Specific tool for valve cotters |
| CN202479788U (en) * | 2011-12-30 | 2012-10-10 | 重庆小康工业集团股份有限公司 | Diesel engine valve lock clamp assembly fixture |
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2012
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| CN102601613A (en) | 2012-07-25 |
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Effective date of registration: 20170221 Address after: 401221 Chongqing Changshou District Industrial Park electromechanical materials Park Patentee after: Chongqing Xiaokang Power Co., Ltd. Address before: 400033 Jinqiao Road, Shapingba District, Chongqing, 61-1 Patentee before: Chongqing Xiaokang Industry Group Co., Ltd. |