CN1676954A - Fixing method for realizing precise positioning and its use for motor vehicle engine and external structure connection - Google Patents
Fixing method for realizing precise positioning and its use for motor vehicle engine and external structure connection Download PDFInfo
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- CN1676954A CN1676954A CN 200510020773 CN200510020773A CN1676954A CN 1676954 A CN1676954 A CN 1676954A CN 200510020773 CN200510020773 CN 200510020773 CN 200510020773 A CN200510020773 A CN 200510020773A CN 1676954 A CN1676954 A CN 1676954A
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Abstract
The invention discloses a fastening method which achieves accurate positioning. There is a bolt structure associating with corresponding hole structure on fastening structure at the linking structure. The bolt structure includes a head, foot section set with fastening screw structure on outer round surface and center section of the bolt. There is a cone section set on the bolt with the diameter gradually decreases along the foot direction. On the bolt head side at the primary fasten structure in its bolt associating hole, there is at least a cone hole adaptive to the cone section on the bolt. And at the linking section of above two associating holes, there is at least a transition hole structure with diameter larger than it of the cone top. The positioning technique is simple, of high positioning accuracy, fine rigid connection which eliminates loose of directions, and can be detached while maintaining and recovering previous position accuracy.
Description
Technical field
What the present invention relates to is that a kind of can the realization makes the two adjacent structural members that close realize pinpoint locking method.But this method prior applicability but and not only be confined to the engine of Motor Vehicle and external structure is isostructural accurately is located by connecting.
Background technique
In fields such as industry, traffic, it is much that two adjacent structures are accurately located fastening situation.With common motor vehicle engine and the interstructural example that is connected to of its outer installment: based on the manufacturing technology of existing engine housing, the screw that respectively is located by connecting on housing, each transmission shaft etc., its manufacturing tolerances has realized better controlled.Along with the development of automotive engineering, increasing of function often need be installed more parts on the external casing of engine.Wherein to some parts, particularly the matching requirements between operating element and this housing are harsh often, at first requiring need have accurate localization between the two, on this basis, particularly having under the bad condition conditions such as judder, also require to eliminate the fastening gap on all directions and bear bigger load forces, and can realize fastening with prevent to become flexible in, can also have detachably and refill reduction and maintenance and the conforming ability of former assembling precision etc. of joining.
Bolt arrangement is a kind of fasten structural elements together that is widely used.In the sunk screw commonly used,, make it, also weakened its radial load power simultaneously along the Location accuracy variation on the axis because its conicity angles alpha (angle between its conical surface and axis) is bigger.For example in known wheel-fastening device,, wheel is imported the screw rod that is fixed on the wheel hub along taper hole, use a kind of nut tightening of tapered end face again, the location of having realized wheel and wheel hub along a plurality of taper holes of being evenly distributed in of spoke.This orientation type since screw rod must in be embedded on the transmission main body, normally screw rod is embedded and carries out stop in a kind of foundry goods or the extrusion and obtain above-mentioned positioning result, thereby show that its application and mode have been subjected to limitation.
The Chinese patent literature of notification number CN2082790Y discloses a kind of " tapered sleeve tightening nut ", wherein tightening nut is made of lining and gland nut respectively, and gland nut is made up of retaining nut, setscrew nut and positioning screwn, this orientation type also exists radial-play between its inwall and the positioning shaft except that the structure complexity.In more public technology, this lining is the form that becomes a kind of open loop.As along the form of slotting on the axial port of lining, under the situation of nut or screw rod tightening, both can only be a kind of line ways of contact with contacting of lining, therefore inevitable its radial load ability that just weakened.In disclosed in the Chinese patent literature of notification number CN2424868Y " the flexible repeated positioning device of anchor clamps ", four wedge shaped projection have distributed around the positioning pilot hole of an one locating face, another locating face is finished both location with four identical side rubber-like rectangular recess of position by the wedging between projection and the groove.Owing to have elasticity factor in the wedging of this device, thereby cause reducing along the radial load bearing capacity and the Location accuracy of guide shaft, the publication number that also has similarly is the report of Chinese patent literature such as CN1245586A.
Summary of the invention
At above-mentioned situation, the present invention will provide a kind of can the realization to make the two adjacent structural members that close realize pinpoint locking method.This method except that can be preferably applied in the engine of Motor Vehicle and external structure is isostructural accurately be located by connecting, equally also be suitable in other field the situation that has accurate location to be fastenedly connected requirement being used, and have simple and convenient, the Location accuracy height, rigidity connects, even also to keep not having play under the working condition of judder fastening having, and have prevent loosening ability detachable, can guarantee to reduce the advantage of Location accuracy.
For achieving the above object, the present invention realizes pinpoint locking method, be to be combined with bolt structure body in the respective aperture structure on the two adjacent fastening structures that are positioned that close, this bolt structure body comprises head, outer circumferential face is provided with the afterbody of binding thread structure and therebetween screw rod middle part, be provided with one to the gradually little conical section of caudal directions diameter in screw part, at least be provided with and the adapt taper hole that cooperates of tapering of this screw part conical section at first be positioned the bolt matching hole on the fastening structure that is arranged in bolt head direction side, and at least one side opening structure that the said two path vertex of a cone places of place, junctions and this conical section that are positioned fastening structure bolt matching hole adapt, be provided with the transiting neck structure of one section diameter greater than this cone top part diameter.
With above-mentioned bolt structure body insert two be positioned on the fastening structure the bolt matching hole and screw bolt after, according to mechanics principle, the axial force along screw rod that is produced by screw thread has formed on the conical surface axially and component radially, component on the both direction has been eliminated two plaies that are positioned all directions between fastening structure on the one hand, on the other hand externally under the active force of all directions, but synthesis of the axial force is applied on the screw thread again.So cooperate the faying surface place to have a certain size stiction at its circular cone, its component has radially also increased the pretightening force of scyewed joint simultaneously.Add elastic washer with plain bolt and compare, can play better anti-loosening effect.And, after screw thread screws,, between fastening piece, obtained the effect of accurate location by the location, the center of circle of two conical surfaces based on the circular cone Positioning Principle.
For guarantee first and second fastening pieces along bolt arrangement axially and radial direction can both realize accurate location, prerequisite is to fit tightly between conical section and the taper hole fully guaranteeing under the situation that bolt screws.But in actual applications, because inevitable error in the machine-building, and conical section that causes because of dismounting repeatedly or the factors such as wearing and tearing between taper hole, the bolt of at present used band conical section structure is often because a variety of causes hinders bolt because of this cone top part is subjected to the top in thread section aperture in screwing process, and the required screw-in depth of screw rod can't guarantee to fit tightly between its conical section and the taper hole time, though inreal as yet falseness " cooperation the puts in place " phenomenon of fitting of its taper fit face occurs " screwing and putting in place ".Therefore, in the above-mentioned locking method of the present invention, being provided with one section diameter at least one side opening structure that the said two path vertex of a cone places of place, junctions and this conical section that are positioned fastening structure bolt matching hole adapt is crucial greater than the transiting neck structure of this cone top part diameter.By this transiting neck structure is set, can make bolt in fastening screwing in the process, can realize the real position that is properly fit onto for its two conical surface and leave an adjusting space, leeway, to reach the purpose of this species diversity of self adaption.
Based on the above method, the further concrete version of the present invention mainly also comprises:
In the said method, said this cooperation taper hole can be set in place in first of said bolt head direction side is positioned fastening structure, it is said that to be positioned at be positioned this bolt matching hole on the fastening structure of second of bolt tail direction side be to be used for the screw that matches with the bolt tail binding thread, said this screw both can be the screw of blind hole form, also can be the screw of through-hole form.Said this transiting neck structure is arranged at two first of place, bolt matching hole junction on the fastening structure fastening structure sides that are positioned that are positioned, or the second fastening structure side that is positioned.
In the said method, said this cooperation taper hole can also be adopted as the mode of continuity tapering, is arranged on said this two form that is positioned the both sides at the place, junction of bolt matching hole on the fastening structure.Said this second be positioned this bolt matching hole on the fastening structure that is positioned at bolt tail direction side is to be used for the screw that matches with the bolt tail binding thread, equally also can be the screw of blind hole or through-hole form.Said this transiting neck structure then is arranged at this second junction side that is positioned bolt matching hole on the fastening structure.
In addition, above-mentionedly will said this cooperation taper hole be arranged on said two when being positioned that the structural type of both sides is located in the junction of bolt matching hole on the fastening structure adopting in the mode that continues tapering, according to the length of this bolt structure body and/or the extended length of its conical section, and/or the thickness of the fastening structure that is positioned, said be positioned at this bolt matching hole that second of its bolt tail direction side is positioned on the fastening structure can be for having or not having the through hole of binding thread, and can be according to actual needs, the screw member that is used for making secure fit with bolt tail can be adopted as and be positioned at second structural member that is positioned another nut form outside the fastening structure.This moment, said this transiting neck structure generally was to be arranged at the second junction side that is positioned bolt matching hole in the fastening structure.
In above-mentioned the whole bag of tricks, the said concrete structure that is arranged at this conical section at its screw rod middle part, according to different use condition, can be adopted as structure as common form such as the circular cone or the frustum of a pyramids, this cooperation taper hole in the fastening structure that is positioned then should be the structural type that adapts with it.For example, when needs screwed operation to this bolt structure body, this conical section can adopt the structure of conical form; If when adopting above-mentioned nut structure to carry out fastening operation, then adopt pyramid-shaped structures to play bolt structure body only revolved positioning action, more convenient operation through peripheral hardware.
As above-mentioned,, therefore the head of this bolt structure body can be designed to be convenient to the shape and/or the structure of fastening operation by existing mode because mostly the operation that screws of bolt structure body is maybe to need this head to make suitable compounding practice at its head.For example, the header operations position of bolt structure body can be as present countersunk screw form, structures such as the groove that adapts with corresponding tool that directly is provided with, hole in bigger diameter end portion by said this conical section continuity, also can adopt the nut type structure of a diameter less than the bigger diameter end diameter is set on this conical section bigger diameter end face, carry out fastening operation by the clamping pulling tool that adapts.In the fastening process,,, its header operations end is exposed to outside the bigger diameter end face of said cooperation taper hole, also can sinks within the bigger diameter end face therefore according to different situations because its header operations position is this conical section continuity.
The header operations position of this bolt structure body is become as bolt at present commonly used, have a fastening operative end of expanding that adapts with corresponding fastening clamp instrument.This conical section in the screw rod can keep spacing with bolt head or be close to this bolt head setting at this moment, and the awl base diameter of bigger diameter end is positioned greater than said first and cooperates the corresponding bigger diameter end diameter of taper hole in the fastening structure in its conical section, though purpose is to put in place for avoiding screwing equally, falseness " cooperation the puts in place " phenomenon that its taper fit face does not really fit tightly as yet.
Under special circumstances, the structural type that said this first anchor design can also be connected as a single entity for the head with bolt structure body as required.This moment, said this cooperation taper hole then should be arranged on second fastening piece, said this transiting neck structure is arranged on the bottom that cooperates taper hole, and can realize locating fastening purpose with being threaded of bolt structure body afterbody by independent another nut structure that is provided with.
Further, in above-mentioned various structures, for ease of the dismounting/assembly manipulation that can realize in actual use repeating, test result shows, the taper angle of this conical section (being the angle between tapering inclined-plane and axis) is when α is too small, its orientation range radially dwindles, while axial load variation, even produce the phenomenon of self-locking between two conical surfaces; α excessive (as common sunk screw), the radial load of its two conical surface reduces, the deterioration in accuracy of radial location simultaneously, the anti-loosening ability of screw thread weakens.According to mechanistic general knowledge, though when the α angle be 10 when spending, also can make bolt structure body can realize dismounting much larger than it from the locking angle.Therefore, in the above-mentioned screw bolt-type positioning and fastening arrangement of the present invention, with the taper angle (being the angle between tapering inclined-plane and axis) of this conical section at the said screw rod middle part better mode that to be designed to 10 °～50 ° scopes are a kind of recommendations.
According to the use position of reality and/or different concrete use condition, for making said method of the present invention that applicability widely can be arranged, further version also comprises: be provided with an adjusting slider that cooperates with it through the taper hole structure that adapts again outside this conical section at above-mentioned screw rod middle part, simultaneously this adjusting slider symmetrically arranged one group of wedge-like engagement face on it is snug fit at first and is positioned and has in the wedge shape chute that adapts of the scope of reciprocatingly sliding on the fastening structure, and make the direction that reciprocatingly slides of this wedge shape chute allow direction consistent with said this two location tolerance that is positioned fastening structure.This just can make said method of the present invention can realize that accurately the location is fastening, has had again to make the suitably flexibility of adjustment in allowed band according to the use condition needs.
Below with reference to being applied to the embodiment that motor vehicle engine is connected with external structure, foregoing of the present invention is described in further detail again by shown in the drawings.Wherein said engine is meant the integral body of parts such as motor car engine and speed changer.But the scope that should at this point not be interpreted as foregoing of the present invention only limits to following embodiment.Do not breaking away under the above-mentioned technological thought situation of the present invention, the various variations according to ordinary skill knowledge and customary means are made still belong to scope of the present invention.
Description of drawings
Fig. 1 and Fig. 2 are the structural representations of this bolt structure body in the inventive method.
Fig. 3 is the structural representation when a kind of screw head and first fastening piece are combined as a whole in the inventive method.
Fig. 4 is a kind of with the view of continuity during taper fit in the inventive method.
Fig. 5 is a kind of schematic representation when being applied to motor vehicle engine shell and outside drive mechanism and doing the location and be fastenedly connected.
Fig. 6 is the view of overlooking of Fig. 5;
Fig. 7 is the schematic representation of another kind when being applied to motor vehicle engine shell and external structure and doing the location and be fastenedly connected.
Fig. 8 is that overlooking of Fig. 7 shown the state intention.
Fig. 9 is the schematic representation of another application mode of the inventive method.
Figure 10 overlooks view among Fig. 9.
Figure 11 is the schematic representation of the another kind of variation pattern of Fig. 9.
Embodiment
Illustrated in figures 1 and 2, be a kind of basic structure of this bolt structure body in the inventive method.It has an energy and is arranged on the bolt structure body that engine structure and being positioned is anchored on the respective aperture respective outer side edges on its outer external structure.This bolt structure body comprises that head 1, an outer circumferential face are provided with the afterbody 3 of binding thread structure and therebetween screw rod middle part.Be not threaded smooth through hole as the bolt structure body matching hole structure on this motor vehicle engine external structure of first fastener 4; As the bolt structure body matching hole on this engine structure of second fastener 7 is to have the screw 8 that can match with the binding thread structure of bolt tail 3, and this screw shown in the figure is the blind hole form, can be through hole.Be provided with one to the gradually little conical section 2 of caudal directions diameter at the screw rod middle part, the taper angle of this conical section 2 is designed to 10 °～50 °.Be provided with in the bolt matching hole on first fastener 4 and have one section and cooperate taper hole 5 with this conical section 2 adapts tapering, and the position that the path cone top part of bolt matching hole below and this conical section 2 adapts on the fastening structure that is positioned, its below and second, be provided with the circular hole form transiting neck structure 6 of one section diameter greater than this cone top part diameter, make when screw thread screws fully, in the interplanar transiting neck structure 6 in upper end of the end face lower end transition position of taper hole 5 and screw 8, also maintain an internal void d, to guarantee that its two cooperations conical surface can be fitted fully mutually, realize the location between first fastening piece 4 and second fastening piece 7, axial and radial load affacts on the interpyramidal cooperation conical surface fully, bears being fastenedly connected under the complex loading conditions thereby improved.
When between two fasteners 4,7 when adopting above-mentioned two identical positioning and fastening arrangements, can make this external agency along realizing spline on the attachment face, thereby make external agency on X, Y, Z all directions, all accurately located, and realized mutual fastening of engine housing, and bear from the load on all directions.The ability that prevents thread looseness that the conical surface obtained with above-mentioned taper angle is very favourable to being fastenedly connected on the engine that is in vibration condition.
Shown in Figure 3, be a kind of among the present invention the screw head and first anchor design to be become the structural type that integrally combines.On the basis of Fig. 1 and Fig. 2, wherein first fastening piece 4 and the head 1 of bolt structure body are become the structure of one form, bolt matching hole on second fastening piece 7 is a threadless smooth through hole, and 5 of corresponding taper fit taper holes are arranged on the top of through hole in second fastening piece 7, be provided with in the lower end of cone shape hole 5 one section diameter greater than the wide diameter portion of bolt conical section 2 miner diameter end vertex of a cone diameters as transiting neck structure 6, and by peripheral hardware one independently nut 13 be connected with the binding thread of bolt arrangement afterbody 3 realization fastening to the location of two fastening pieces 4,7.
Fig. 4 is a kind of form that has adopted the continuity tapered configuration to cooperate in the inventive method.On Fig. 1 and Fig. 2 basis, be extended to the taper hole 5 on first fastening piece 4 in the bolt matching hole of second fastening piece 7 along taper direction, this conical section 2 on the bolt structure body also is extended on second fastening piece 7 simultaneously, and being combined with the transiting neck structure 6 of diameter greater than bolt conical section 2 path end diameter in the cone shape hole lower end of second fastening piece 7, the screw 8 that can adapt with the screw thread of bolt arrangement afterbody 3 then is arranged in the below of transiting neck structure 6.This bolt structure body head 1 is provided with the fastening operative end of an external diameter less than the nut type structure of conical section 2 bigger diameter end diameters.
Fig. 5 and Fig. 6 are a kind of states when being applied to motor vehicle engine shell and outside drive mechanism and doing the location and be fastenedly connected, be at the less situation design of transmission load, the bolt structure body that has adopted two same forms positions by two taper fit taper holes on first fastening piece 4 and two corresponding screws 8 on second fastening piece 7 respectively and is fastenedly connected.Switching has a belt wheel 21 on first fastening piece 4, and is in transmission connection with belt wheel 22 bands on second fastening piece.Find out thus: under the situation that obtains to guarantee at the relative position between the rotating shaft 23 of screw 8 on second fastening piece 7 and belt wheel 22, externally between mechanism and the engine housings, the applying conical surface by bolt structure body in the positioning device of the present invention and taper fit taper hole 5, can make axially and radially of belt wheel 21 and 22, under load or non-load condition, all obtain a kind of accurate location positioning.Among the figure the head 1 of bolt structure body adopted a kind of in the operative end of hexagonal form, purpose is to be fit to more fastened tools operation.
Fig. 7 and Fig. 8 are the state of another kind when being applied to motor vehicle engine shell and external structure and doing the location and be fastenedly connected, and are to have increased by two plain bolts 12 again as auxiliary fastening structure on the basis of above-mentioned Fig. 5 mode.They are connected with corresponding screw on second fastening piece 7 equally respectively, and purpose is to strengthen between two fastening pieces 4,7 along the axial load-bearing power of bolt structure body.Present embodiment can be applicable to the bigger occasion of axial load.
Fig. 9～Figure 10 is that the present invention's another on Fig. 2 and Fig. 6 mode basis changes type of service.When adopting two above-mentioned location clamping bolt structures at the same time, be provided with a transition adjusting slider 10 that cooperates with it through the taper hole structure that adapts outside the conical section 2 at a screw rod middle part therein, and this adjusting slider 10 symmetrically arranged one group of wedge-like engagement face 9 on it is snug fit in the wedge shape chute that adapts that has the scope of reciprocatingly sliding on first fastener 4, the direction that reciprocatingly slides of this wedge shape chute allows direction consistent with said this two location tolerance that is positioned fastening structure.This structure can make first fastening piece 4 can adapt to the installation position of second fastening piece 7 more.On Motor Vehicle, the cross-over connection that present embodiment is commonly used on the engine housing is installed, be installed in situation between motor body and the case of transmission as external means, Chang Yinwei makes or the assembling reason between the two, causes in the position difference between the screw on a certain direction.As can be seen from Figure, adjusting slider 10 can make bolt structure body while glide direction along its permission in chute suitably move back and forth, and realizes position (error) tolerance of self adaption adjustment screw.
Figure 11 is the application state of the another kind of version on Fig. 9 and Figure 10 basis, what show is a kind of according to the direction of error between screw on the engine housing, determine the adjustment direction of displacement of this adjusting slider 10 and chute on first fastening piece 4, adjust the error of size with self adaption.
Claims (15)
1. realize pinpoint locking method, be combined with bolt structure body in the respective aperture structure on the two adjacent fastening structures that are positioned that close, this bolt structure body comprises head (1), outer circumferential face is provided with the afterbody (3) of binding thread structure and therebetween screw rod middle part, it is characterized in that being provided with one to the gradually little conical section of caudal directions diameter (2) in screw part, at least be provided with this screw part conical section (2) adapts tapering and cooperate taper hole (5) at first be positioned the bolt matching hole on the fastening structure (4) that is arranged in bolt head direction side, and at least one side opening structure that the said two path vertex of a cone places of place, junctions and this conical section (2) that are positioned fastening structure bolt matching hole adapt, be provided with the transiting neck structure (6) of one section diameter greater than this cone top part diameter.
2. the pinpoint locking method of realization as claimed in claim 1 is characterized in that this conical section (2) of said screw part adopts 10 °～50 ° taper angle.
3. the pinpoint locking method of realization as claimed in claim 1, it is characterized in that said this cooperation taper hole (5) is set in place in first of said bolt head direction side is positioned fastening structure (4), said be positioned the screw of this bolt matching hole (8) for being used for matching with bolt tail (3) binding thread on the fastening structure (7) of second of bolt tail direction side that be positioned at, said this transiting neck structure (6) are arranged at the two first or second fastening structure sides that are positioned that are positioned that bolt matching hole junction is located on the fastening structure.
4. the pinpoint locking method of realization as claimed in claim 1, it is characterized in that said this cooperation taper hole (5) is arranged on said two both sides, junction that are positioned bolt matching hole on the fastening structure in the mode of continuity tapering, said be positioned the screw of this bolt matching hole (8) for being used for matching with bolt tail (3) binding thread on the fastening structure (7) of second of bolt tail direction side that be positioned at, said this transiting neck structure (6) are arranged at the second junction side that is positioned bolt matching hole on the fastening structure.
5. the pinpoint locking method of realization as claimed in claim 1, it is characterized in that said this cooperation taper hole (5) is arranged on said two both sides, junction that are positioned bolt matching hole on the fastening structure in the mode of continuity tapering, it is said that to be positioned at this bolt matching hole (8) that second of bolt tail direction side is positioned on the fastening structure (7) be through hole, the screw member that is used for making secure fit with bolt tail (3) is for being positioned at second nut structure that is positioned outside the fastening structure (7), and said this transiting neck structure (6) is arranged at the second junction side that is positioned bolt matching hole in the fastening structure.
6. the pinpoint locking method of realization as claimed in claim 5 is characterized in that the conical section (2) of said screw part is circular cone or pyramid mesa structure, the structural type of the said cooperation taper hole (5) in the fastening structure that is positioned for adapting with it.
7. the pinpoint locking method of realization as claimed in claim 1, it is characterized in that making said bolt head (1) is the fastening operative end of expanding, the setting of this conical section (2) in screw rod next-door neighbour bolt head, and the awl base diameter of bigger diameter end is positioned greater than said first and cooperates the corresponding bigger diameter end diameter of taper hole (5) in the fastening structure (4) in its conical section (2).
8. the pinpoint locking method of realization as claimed in claim 1, it is characterized in that outside this conical section (2) at said screw rod middle part, being provided with an adjusting slider (10) that cooperates with it through the taper hole structure that adapts, this adjusting slider (10) symmetrically arranged one group of wedge-like engagement face (9) on it is snug fit at first and is positioned and has in the wedge shape chute that adapts of the scope of reciprocatingly sliding on the fastening structure (4), and the direction that reciprocatingly slides of this wedge shape chute allows direction consistent with said this two location tolerance that is positioned fastening structure.
9. realize motor vehicle engine and the pinpoint locking method of external structure, in being anchored on respective aperture structure on the external structure outside it, engine structure and being positioned is combined with bolt structure body, this bolt structure body comprises head (1), outer circumferential face is provided with the afterbody (3) of binding thread structure and therebetween screw rod middle part, as the first bolt structure body matching hole structure that is positioned on this external structure of fastening structure (4) is through hole, as second screw of bolt structure body matching hole structure that is positioned on this engine structure of fastening structure (7) for being used for matching with the binding thread structure of bolt tail (3), it is characterized in that in screw part, being provided with one to the gradually little conical section of caudal directions diameter (2), at least in the bolt matching hole of fastening external structure that is positioned, have with this screw part conical section (2) adapts tapering and cooperate taper hole (5), and at least one side opening structure that the first and/or second path vertex of a cone place that is positioned place, bolt matching hole junction and this conical section (2) on the fastening structure adapts, be provided with the transiting neck structure (6) of a diameter greater than this cone top part diameter.
10. realization motor vehicle engine as claimed in claim 9 and the pinpoint locking method of external structure is characterized in that this conical section (2) of said this screw part adopts 10 °～50 ° taper angle.
11. realization motor vehicle engine as claimed in claim 9 and the pinpoint locking method of external structure is characterized in that said this cooperation taper hole (5) is arranged on first and is positioned in the bolt matching hole of fastening structure.
12. realization motor vehicle engine as claimed in claim 9 and the pinpoint locking method of external structure, it is characterized in that said this cooperation taper hole (5) is arranged on two both sides, place, junction that are positioned bolt matching hole on the fastening structure in the mode of continuity tapering, said this transiting neck structure (6) is arranged at the second junction side that is positioned this bolt matching hole on the fastening structure.
13. realization motor vehicle engine as claimed in claim 9 and the pinpoint locking method of external structure, it is characterized in that said bolt head (1) is the fastening operative end of expanding, this conical section (2) next-door neighbour bolt head setting of screw rod, and the awl base diameter of its conical section (2) bigger diameter end cooperates the diameter of the corresponding bigger diameter end of taper hole (5) greater than external structure.
14. realization motor vehicle engine as claimed in claim 9 and the pinpoint locking method of external structure, it is characterized in that outside this conical section (2) at said screw rod middle part, being provided with an adjusting slider (10) that cooperates with it through the taper hole structure that adapts, this adjusting slider (10) symmetrically arranged one group of wedge-like engagement face (9) on it is snug fit at first and is positioned and has in the wedge shape chute that adapts of the scope of reciprocatingly sliding on the fastening structure (4), and the direction that reciprocatingly slides of this wedge shape chute allows direction consistent with said this two location tolerance that is positioned fastening structure.
15., it is characterized in that being at least 2 at first the be positioned bolt structure body of the said structural type that is provided with in the junction of fastening structure (7) of fastening structure (4) and second that is positioned as described realization motor vehicle engine of claim 9 to 14 and the pinpoint locking method of external structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200510020773 CN1676954A (en) | 2005-04-22 | 2005-04-22 | Fixing method for realizing precise positioning and its use for motor vehicle engine and external structure connection |
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| CN 200510020773 CN1676954A (en) | 2005-04-22 | 2005-04-22 | Fixing method for realizing precise positioning and its use for motor vehicle engine and external structure connection |
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- 2005-04-22 CN CN 200510020773 patent/CN1676954A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101627214B (en) * | 2007-03-08 | 2012-06-06 | 瓦特西拉芬兰有限公司 | Connection arrangement and a locking bolt included therein |
| CN102163777A (en) * | 2010-11-22 | 2011-08-24 | 苏州华旃航天电器有限公司 | Lock bolt of O-shaped seal ring of connector |
| CN106838756A (en) * | 2016-11-24 | 2017-06-13 | 武汉通畅汽车电子照明有限公司 | A kind of lamp-mounting structure and lamp installation method |
| CN108468683A (en) * | 2018-05-21 | 2018-08-31 | 郑州飞机装备有限责任公司 | It is a kind of to be used for the mounting structure that relative position is continuously adjustable between two structures |
| CN108468683B (en) * | 2018-05-21 | 2024-07-05 | 郑州飞机装备有限责任公司 | Mounting structure for continuously adjusting relative position between two structural bodies |
| CN109434438A (en) * | 2018-12-21 | 2019-03-08 | 珠海经济特区华凯工贸有限公司 | A kind of bearing calibration of manipulator automatic tightening self-tapping screw |
| CN110821005A (en) * | 2019-05-10 | 2020-02-21 | 浙江亚厦幕墙有限公司 | Pottery tile dry hanging type curtain wall structure unit |
| CN111810507A (en) * | 2020-06-29 | 2020-10-23 | 北京汽车集团越野车有限公司 | Dowel pin assembly, manufacturing method and manufacturing device |
| CN112975520A (en) * | 2021-04-19 | 2021-06-18 | 北京优备加科技有限公司 | Tray positioning device and machining center with same |
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