CN111843421B - Auxiliary anti-rotation method for assembly body containing micro-gap dissimilar material and application - Google Patents
Auxiliary anti-rotation method for assembly body containing micro-gap dissimilar material and application Download PDFInfo
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- CN111843421B CN111843421B CN202010773717.5A CN202010773717A CN111843421B CN 111843421 B CN111843421 B CN 111843421B CN 202010773717 A CN202010773717 A CN 202010773717A CN 111843421 B CN111843421 B CN 111843421B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Abstract
The invention relates to the field of assembling of dissimilar material assembly bodies, and particularly discloses an auxiliary anti-rotation method and application of a dissimilar material assembly body containing a micro gap, S1, selecting materials with mechanical properties different by +/-10% according to the mechanical properties of matrix part materials of the assembly body, and then processing an anti-rotation key; s2, machining an anti-rotation key groove matched with the anti-rotation key on the inner profile surface of the base part of the assembly body; s3, forming a threaded hole in the anti-rotation key, and forming a through hole matched with the threaded hole in the base part of the assembly body; s4, adhering a transition layer on the inner profile of the anti-rotation key; s5, mounting the anti-rotation key adhered with the transition layer into the corresponding anti-rotation key groove of the base part; and S6, coating adhesive on the inner surface of the transition layer, and fastening the base part provided with the anti-rotation key on the outer surface of the adjacent part. The invention has the advantages of enhancing the anti-rotation effect of the structure of the assembly body containing the micro-gaps, improving the integral strength and rigidity of the structure of the assembly body and prolonging the service life of the structure.
Description
Technical Field
The invention relates to the field of assembly of dissimilar materials, in particular to an auxiliary anti-rotation method and application of an assembly containing a micro-gap dissimilar material.
Background
In the assembly and connection technology of assemblies made of dissimilar materials with micro gaps, the conventional assembly method is generally to fixedly connect the parts of the assemblies directly, or to adopt a flexible material pre-tightening technology to realize the detachable connection of the parts of the assemblies and control the relative rotation between the parts. Although the fixed connection mode is firm and stable in connection, the assembly body adopting the connection mode has the defects that all parts cannot be flexibly disassembled, the requirements on the mechanical properties of all the connected parts are high, and the application range is narrow; in the flexible material pre-tightening technology, the connection of the dissimilar material assembly body containing the micro-gap is realized mainly by filling a flexible medium in the micro-gap between the substrate part of the dissimilar material assembly body and the adjacent part, and the rotation prevention between the substrate part of the assembly body and the adjacent part is realized by compressing the flexible material to generate holding force. The flexible material pre-tightening technology can meet the use requirement of a certain period, but in the long-term use process, the overall rigidity and the strength of the assembly body can be obviously reduced along with the time extension due to the aging effect of the middle flexible medium material, and after the overall rigidity and the strength are reduced to a certain degree, the matrix part and the adjacent parts of the assembly body can rotate relatively in the use process, so that the use performance and the service life of the assembly body are finally influenced.
Therefore, in the assembly process of the assembly body made of the dissimilar materials with the micro gap, the anti-rotation effect of the assembly body is particularly required to be further enhanced, but the gap between the base part and the adjacent part of the assembly body with the micro gap is too small, and meanwhile, the common keyway type anti-rotation structure is not suitable for overcoming the difficulty that the structure of the assembly body is easy to loosen and rotate under the condition that the mechanical property difference between the base part material and the adjacent part material in the structure of the assembly body is large.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an auxiliary anti-rotation method and application of an assembly body containing a micro-gap dissimilar material.
The purpose of the invention is realized by the following technical scheme: an auxiliary anti-rotation method for an assembly body containing micro-gap dissimilar materials comprises the following steps:
s1, selecting materials with mechanical properties different by +/-10% according to the mechanical properties of the matrix part materials of the assembly body, and then processing anti-rotation keys;
s2, machining an anti-rotation key groove matched with the anti-rotation key on the inner profile surface of the base part of the assembly body;
s3, forming a threaded hole in the anti-rotation key, and forming a through hole matched with the threaded hole in the base part of the assembly body;
s4, adhering a transition layer on the inner profile of the anti-rotation key;
s5, mounting the anti-rotation key adhered with the transition layer into the corresponding anti-rotation key groove of the base part;
s6, coating adhesive on the inner surface of the transition layer, and buckling the base part with the anti-rotation key on the outer surface of the adjacent part to bond the inner surface of the transition layer and the outer surface of the adjacent part;
s7, after the transition layer is firmly bonded with the adjacent parts, removing the process screw for assembling the anti-rotation key, and completing the auxiliary anti-rotation of the assembly body containing the micro-gap dissimilar material.
Specifically, the transition layer is made of rubber or silicon foam materials.
Specifically, the peripheral edge of the transition layer is adhered to the rear of the anti-rotation key and is 2-3 mm away from the peripheral edge of the anti-rotation key.
Specifically, the transition layer is adapted to the shape of the inner profile of the anti-rotation key.
Specifically, the through hole machined in the base part in the step S3 is located in the middle of the anti-rotation key groove.
Specifically, the screw hole formed in the anti-rotation key in step S3 is located in the middle of the anti-rotation key.
Specifically, a plurality of anti-rotation key grooves are processed on the inner profile surface of the base part, and an anti-rotation key is arranged in each anti-rotation key groove.
The application of the auxiliary anti-rotation method of the assembly body made of the different materials with the micro-gaps is that the auxiliary anti-rotation method is suitable for the assembly body made of the different materials with the millimeter or submillimeter-level micro-gaps.
The invention has the following advantages:
according to the invention, the auxiliary anti-rotation structure of the assembly body is designed on the premise of less change of the original structure size of the assembly body, the anti-rotation effect of the assembly body structure containing the micro-gap is enhanced by arranging the anti-rotation key, the anti-rotation key groove and the anti-rotation structure of the transition layer, the integral strength, the rigidity and the service life of the assembly body structure are improved, and particularly, when the assembly body needs to be decomposed, the auxiliary anti-rotation structure can be decomposed and can be positioned and installed.
Drawings
FIG. 1 is a schematic view of an anti-rotation key groove arrangement according to the present invention;
FIG. 2 is a schematic view of the connection structure of the adjacent parts and the anti-rotation key according to the present invention;
FIG. 3 is a front view of the anti-rotation key of the present invention;
FIG. 4 is a side sectional view of the anti-rotation key of the present invention;
FIG. 5 is a schematic front view of the bonding structure of the anti-rotation key and the transition layer of the present invention;
FIG. 6 is a schematic cross-sectional side view of the anti-rotation key and transition layer bonding structure of the present invention;
in the figure: 1-base part, 2-adjacent part, 3-anti-rotation key groove, 4-anti-rotation key, 5-through hole, 6-threaded hole, 7-transition layer and 8-adhesive.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1 to 6, an auxiliary rotation preventing method for an assembly body containing a micro-gap dissimilar material includes the following steps:
s1, selecting materials with mechanical properties different by +/-10% according to the mechanical properties of the material of the assembly body base part 1, and then processing the anti-rotation key 4;
s2, machining an anti-rotation key groove 3 matched with an anti-rotation key 4 on the inner profile surface of the assembly body base part 1; ensuring that the inner profile of the anti-rotation key 4 does not protrude out of the inner profile of the base part 1 and the anti-rotation key 4 is completely matched with the anti-rotation key groove 3, wherein the inner profile of the base part 1 can be a cambered surface or a plane;
s3, forming a threaded hole 6 in the anti-rotation key 4, and forming a through hole 5 matched with the threaded hole 6 in the base part 1 of the assembly body;
s4, adhering a transition layer 7 on the inner profile of the anti-rotation key 4;
s5, installing the anti-rotation key 4 bonded with the transition layer 7 into the corresponding anti-rotation key slot 3 of the base part 1; the anti-rotation structure is quickly and accurately positioned and installed;
s6, coating the adhesive 8 on the inner surface of the transition layer 7, and buckling the base part 1 provided with the anti-rotation key 4 on the outer surface of the adjacent part 2, so that the inner surface of the transition layer 7 is adhered to the outer surface of the adjacent part 2;
s7, after the transition layer 7 is firmly bonded with the adjacent part 2, removing the process screw for assembling the anti-rotation key 4, and completing the auxiliary anti-rotation of the assembly body containing the micro-gap dissimilar material.
The dissimilar materials mentioned in the invention all refer to the condition that the mechanical properties of the base part material of the assembly and the adjacent part material are greatly different, wherein the base part 1 is a relatively high strength material, the adjacent part 2 is a relatively low strength material, if the base part 1 is made of metal material and the adjacent parts 2 are made of high polymer material, aiming at the assembly body structure which contains tiny gaps and has larger difference of mechanical properties of materials among the parts in the assembly body, the anti-rotation effect of the assembly body is enhanced by arranging the anti-rotation structure with proper size in the tiny clearance between the parts, the anti-rotation function is realized by adopting the mode that the anti-rotation key 4 is matched with the anti-rotation key groove 3 in the scheme, meanwhile, the transition layer 7 is utilized to realize the fixed adhesive connection of the anti-rotation key 4 with higher strength and the adjacent part 2 with lower strength, therefore, the auxiliary anti-rotation structure of the assembly body is obtained by the clamping of the anti-rotation key 4 and the anti-rotation key groove 3.
The auxiliary anti-rotation structure is additionally arranged on the basis of traditional flexible medium pre-tightening, so that the anti-rotation effect of the assembly body is further improved. Particularly, when the assembly body needs to be disassembled, the auxiliary anti-rotation structure can be disassembled, and positioning and installation can be realized.
Furthermore, the anti-rotation torque between the base part 1 and the adjacent part 2 is further enhanced, and the transition layer 7 is made of rubber or silicon foam materials, preferably sponge rubber, so that the strength and rigidity of the connecting structure of the assembly body are greatly improved.
Furthermore, the peripheral edge of the transition layer 7 is adhered to the rear of the anti-rotation key 4 and is 2 mm-3 mm away from the peripheral edge of the anti-rotation key 4, wherein the area of the anti-rotation key 4 is larger than that of the transition layer 7.
Furthermore, the transition layer 7 is adapted to the shape of the inner profile of the anti-rotation key 4.
Further, the through hole 5 machined in the base part 1 in the step S3 is located in the middle of the anti-rotation key groove 3.
Further, in the step S3, the screw hole 6 formed in the anti-rotation key 4 is located in the middle of the anti-rotation key 4.
Further, for further reinforcing prevent changeing the effect, the interior profile of base part 1 is processed a plurality of keyways 3 of preventing changeing, and all sets up one in every keyway 3 of preventing changeing and prevent changeing 4, adopts a plurality of supplementary structures of preventing changeing to strengthen and prevent changeing the effect.
Furthermore, the transition layer 7 is adhered to the anti-rotation key 4 through an adhesive 8, the inner profile of the anti-rotation key 4 can be an arc surface or a plane, and the transition layer 7 is adhered to the adjacent part 2.
Furthermore, a threaded hole 6 is arranged on the anti-rotation key 4, a through hole 5 matched with the threaded hole 6 is arranged on the base part 1 of the assembly body, the diameter of the through hole 5 is larger than that of the threaded hole 6, the through hole 5 is communicated with the anti-rotation key groove 3, the threaded hole 6 is arranged in the middle of the anti-rotation key 4, the through hole 5 is arranged in the middle of the anti-rotation key groove 3, the anti-rotation key 4 in the scheme is firstly placed on the anti-rotation key groove 3, then the base part 1 and the adjacent part 2 are assembled, the anti-rotation key 4 is fixed on the adjacent part 2 after being assembled in place, therefore, in order to realize the process, the through hole 5 is arranged on the base part 1, one end of the through hole 5 is positioned in the anti-rotation key groove 3, then the anti-rotation key 4 is provided with the threaded hole 6, during assembly, the anti-rotation key 4 pasted with the transition layer 7 is firstly placed in the anti-rotation key groove 3, then put into technology screw through-hole 5 from the one side that base part 1 deviates from adjacent part 2, technology screw and the screw hole 6 threaded connection on the anti-rotation key 4 in the anti-rotation keyway 3, fix in the anti-rotation keyway 3 through such a mode earlier with anti-rotation key 4, then at the surface coating adhesive 8 of transition layer 7, later assemble base part 1 with adjacent part 2, prevent that rotation key 4 will paste on adjacent part 2 after the assembly, do not need technology screw after pasting firmly, at this moment only need take out technology screw and just accomplish the installation of supplementary anti-rotation structure.
The auxiliary anti-rotation method of the assembly body containing the micro-gap dissimilar material realizes the advantages of degradability of the assembly body, repeated utilization of the auxiliary anti-rotation structure and long service life.
The auxiliary anti-rotation structure is suitable for the assembly body made of the different materials and provided with millimeter or submillimeter-level microgap, so that the auxiliary anti-rotation of the structure of the assembly body is realized, and the service life of the assembly body is effectively prolonged.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (8)
1. An auxiliary rotation preventing method for an assembly body containing a micro-gap dissimilar material is characterized in that: the method comprises the following steps:
s1, selecting materials with mechanical properties different by +/-10% according to the mechanical properties of the materials of the assembly body base part (1), and then processing the anti-rotation key (4);
s2, machining an anti-rotation key groove (3) matched with the anti-rotation key (4) on the inner profile surface of the base part (1) of the assembly body;
s3, forming a threaded hole (6) in the anti-rotation key (4), and forming a through hole (5) matched with the threaded hole (6) in the base part (1) of the assembly body;
s4, adhering a transition layer (7) on the inner profile of the anti-rotation key (4);
s5, mounting the anti-rotation key (4) bonded with the transition layer (7) into the corresponding anti-rotation key slot (3) of the base part (1);
s6, coating an adhesive (8) on the inner surface of the transition layer (7), and buckling the base part (1) provided with the anti-rotation key (4) on the outer surface of the adjacent part (2) so that the inner surface of the transition layer (7) is bonded with the outer surface of the adjacent part (2);
s7, after the transition layer (7) is firmly bonded with the adjacent part (2), removing the process screw for assembling the anti-rotation key (4), and completing the auxiliary anti-rotation of the assembly body containing the micro-gap dissimilar material.
2. An anti-rotation method as claimed in claim 1, wherein the assembly comprises a plurality of micro-gap dissimilar materials, the method comprising: the transition layer (7) is made of rubber or silicon foam materials.
3. An anti-rotation method as claimed in claim 1, wherein the assembly comprises a plurality of micro-gap dissimilar materials, the method comprising: the peripheral edge of the transition layer (7) is 2-3 mm away from the peripheral edge of the anti-rotation key (4) after being adhered to the anti-rotation key (4).
4. An anti-rotation method as claimed in claim 1, wherein the assembly comprises a plurality of micro-gap dissimilar materials, the method comprising: the transition layer (7) is adapted to the shape of the inner profile of the anti-rotation key (4).
5. An anti-rotation method as claimed in claim 1, wherein the assembly comprises a plurality of micro-gap dissimilar materials, the method comprising: and in the step S3, the through hole (5) machined in the base part (1) is positioned in the middle of the anti-rotation key groove (3).
6. An anti-rotation method as claimed in claim 1, wherein the assembly comprises a plurality of micro-gap dissimilar materials, the method comprising: and in the step S3, the threaded hole (6) formed in the anti-rotation key (4) is positioned in the middle of the anti-rotation key (4).
7. An anti-rotation method as claimed in claim 1, wherein the assembly comprises a plurality of micro-gap dissimilar materials, the method comprising: the inner profile of the base part (1) is provided with a plurality of anti-rotation key grooves (3), and each anti-rotation key groove (3) is internally provided with an anti-rotation key (4).
8. Use of an assembly comprising a micro-gap dissimilar material according to any one of claims 1 to 7 for assisting in preventing rotation, wherein: the auxiliary anti-rotation method is suitable for the dissimilar material assembly with millimeter or submillimeter-scale micro-gap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010773717.5A CN111843421B (en) | 2020-08-04 | 2020-08-04 | Auxiliary anti-rotation method for assembly body containing micro-gap dissimilar material and application |
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| CN202010773717.5A CN111843421B (en) | 2020-08-04 | 2020-08-04 | Auxiliary anti-rotation method for assembly body containing micro-gap dissimilar material and application |
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| CN111843421A CN111843421A (en) | 2020-10-30 |
| CN111843421B true CN111843421B (en) | 2022-02-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10204319A1 (en) * | 2001-12-20 | 2003-09-18 | Zf Lemfoerder Metallwaren Ag | ball joint |
| RU2413477C2 (en) * | 2005-09-16 | 2011-03-10 | Юрген МЕРХОФ | Two-part dental implant |
| US7364395B2 (en) * | 2005-11-21 | 2008-04-29 | General Motors Corporation | Snap ring design with anti-rotation structures at outer diameter |
| CN101598167B (en) * | 2009-04-23 | 2013-06-12 | 贵州航天精工制造有限公司 | Method and connection structure for preventing stud from rotating on substrate |
| CN101614234A (en) * | 2009-08-17 | 2009-12-30 | 贵州航天精工制造有限公司 | A kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw |
| CN103318520A (en) * | 2013-06-27 | 2013-09-25 | 无锡同心塑料制品有限公司 | Plastic structure for preventing bottle cap from rotating |
| CN207437515U (en) * | 2017-09-30 | 2018-06-01 | 中国工程物理研究院材料研究所 | A kind of self-locking fixed shell circumference connection structure |
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