CN115320730A - Section bar threaded sleeve connection structure - Google Patents
Section bar threaded sleeve connection structure Download PDFInfo
- Publication number
- CN115320730A CN115320730A CN202211012848.7A CN202211012848A CN115320730A CN 115320730 A CN115320730 A CN 115320730A CN 202211012848 A CN202211012848 A CN 202211012848A CN 115320730 A CN115320730 A CN 115320730A
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- CN
- China
- Prior art keywords
- threaded sleeve
- section bar
- profile
- sleeve
- connection
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Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- 238000007789 sealing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 241000755266 Kathetostoma giganteum Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a connecting structure of a section bar threaded sleeve, which comprises an aluminum section bar and a threaded sleeve, wherein a rib plate is arranged in the aluminum section bar, a threaded hole is arranged in the threaded sleeve, a step is arranged on the outer edge of the threaded sleeve, an assembling hole matched with the threaded sleeve is arranged in the aluminum section bar, the step on the threaded sleeve is positioned in the aluminum section bar, and the surface of the step is attached to the rib plate. Increase and make between the two level contact connection through the increase of many steps of face structure of screw sleeve appearance and section bar floor contact surface, each floor of section bar receives pressure to diminish, and joint strength is high, and the section bar cooperation is leveled, and the leakproofness is good.
Description
Technical Field
The invention relates to the technical field of aluminum profile vehicle body connection, in particular to a profile threaded sleeve connecting structure.
Background
The automobile body lightweight is very important to new energy automobile, so the aluminium alloy is more and more applied in the automobile body field, but the technical scheme that is used for cavity cross-section aluminium alloy detachability high strength connection is very few. At present, the detachable connection mode of the cavity section aluminum section in the field of automobile bodies mainly comprises the following modes: firstly, a first connecting cavity aluminum profile is pressed into a rivet nut, a second connecting cavity aluminum profile is drilled with a through hole, and then the connecting is carried out through bolt tightening, in the connecting mode, the profile pressed into by the rivet nut has requirements on the thickness of the pressed wall, the wall thickness cannot be too thick, and in terms of technical cost, the nominal diameter of the existing rivet nut is generally smaller than 12mm, so that the connecting method can only be used in occasions with low requirements on connecting strength, and the number of the rivet nuts needs to be increased for overcoming, thereby undoubtedly increasing the labor hour and material cost, and the rivet nut has a boss on the connecting surface, so that the complete joint connection of two pieces is influenced, and the counter bore needs to be formed on the surface of the piece for overcoming, thereby increasing the labor hour and cost; secondly, a smooth through hole sleeve or an internal thread sleeve is punched and welded on the first connecting cavity section aluminum profile and the second connecting cavity section aluminum profile and then connected through bolts and nuts, and although the mode can provide high connecting strength, the method still has the defects of several aspects: 1) the requirement for welding the aluminum profile is high, a welding process needs to be added, a large number of working hours and cost need to be increased, 2) the strength of materials around a welding seam can be reduced by welding the aluminum profile, and 3) the connection matching surface is provided with a bulge, which is not beneficial to sealing.
For example, a flat-head rivet nut disclosed in chinese patent CN202251344U, which is a currently popular aluminum profile detachable connection method used in the automotive field, is connected by screwing a bolt into a press-in workpiece, and when the nut is used, only the rod portion of the nut needs to be pressed into a processed round hole on an assembly surface, and a certain connection strength is obtained by friction force, but in this way, the head portion of the nut is supported on an installation surface, so that a gap with a flat-head thickness exists between two connection members, which results in poor sealing effect, and since the friction force is limited after the nut is installed, a large connection strength requirement cannot be provided, and furthermore, the nut also has a requirement on the thickness of the press-in part of the profile.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a connecting structure of a section bar threaded sleeve to achieve the purposes of high connecting strength and good sealing property.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
this section bar screw sleeve connection structure, including aluminium alloy and screw sleeve, be equipped with the floor in the aluminium alloy, be equipped with the screw hole in the screw sleeve, be equipped with the step in the outer fringe of screw sleeve, be equipped with in the aluminium alloy with the pilot hole of screw sleeve looks adaptation, the step on the screw sleeve is arranged in the aluminium alloy and the step face is laminated with the floor mutually.
Further:
the threaded sleeve is of a stepped cylindrical structure.
The steps on the outer edge of the threaded sleeve are a group arranged along the axial direction of the sleeve.
After the threaded sleeve is inserted into the mounting hole, the end face of the threaded sleeve is flush with the outer surface of the aluminum profile.
At least one step on the threaded sleeve is of a non-circular structure.
The floor in the aluminium alloy is for a set of that sets up side by side, all is equipped with on the floor with screw sleeve correspond part matched with through-hole, a set of through-hole forms the shoulder hole structure.
A group of steps of the threaded sleeve are sequentially arranged in a shrinking mode from the large end to the small end in an outer diameter mode.
And the outer edge of the step at the large end of the threaded sleeve is provided with a positioning plane.
The step surface of each step on the threaded sleeve is attached to the corresponding rib plate.
Compared with the prior art, the invention has the following advantages:
this section bar screw sleeve connection structure reasonable in design increases joint strength and makes between the two level contact connection through the increase of screw sleeve appearance multi-step face structure and section bar floor contact surface, and each floor of section bar receives pressure to diminish, and joint strength is high, and the section bar cooperation is leveled, and the leakproofness is good.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic view of the structure of the threaded sleeve of the present invention.
FIG. 2 is a half cross-sectional view of a blind bore of a threaded sleeve according to the present invention.
FIG. 3 is a half cross-sectional view of a threaded sleeve through-hole of the present invention.
Fig. 4 is a left side view of fig. 2.
Fig. 5 is a left side view of fig. 3.
Fig. 6 is a schematic structural diagram of the profile of the invention.
Fig. 7 is a schematic view of the assembly of the blind threaded sleeve of the present invention within a profile.
Fig. 8 is a schematic view of the through-hole threaded sleeve of the present invention fitted within a profile.
Fig. 9 is a schematic view of the assembly connection of the present invention.
In the figure:
1. the aluminum profile connecting device comprises a threaded sleeve, 101 threaded holes, 102 positioning planes, 103 steps, 2 aluminum profiles, 201 assembling holes, 202 rib plates, 3 connecting workpieces and 4 connecting bolts.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 9, the section bar threaded sleeve connecting structure comprises an aluminum section bar 2 and a threaded sleeve 1, wherein a rib plate 202 is arranged in the aluminum section bar, a threaded hole 101 is arranged in the threaded sleeve, a step 103 is arranged on the outer edge of the threaded sleeve, an assembly hole 201 matched with the threaded sleeve is arranged in the aluminum section bar, and the step on the threaded sleeve is positioned in the aluminum section bar and the surface of the step is attached to the rib plate.
According to the invention, the contact surface of the multi-step surface structure outside the threaded sleeve and the ribbed plate of the section bar is increased to increase the connection strength and ensure that the ribbed plate and the ribbed plate of the section bar are in smooth contact connection, the pressure on each ribbed plate of the section bar is reduced, the connection strength is high, the section bar is smooth in matching, and the sealing property is good.
Preferably, the steps on the outer edge of the threaded sleeve 1 are a group arranged along the axial direction of the sleeve; a set of steps of the threaded sleeve are sequentially reduced from the large end to the small end in outer diameter, the threaded sleeve is of a step-shaped cylinder structure, and the structure is simple to form.
The floor in aluminium alloy 2 is for a set of that sets up side by side, all is equipped with on the floor and corresponds part matched with through-hole with the screw sleeve, and a set of through-hole forms the shoulder hole structure, and machining is simple and convenient to the step face that forms every step on the screw sleeve all laminates with the floor that corresponds mutually, and fixed effect is used in every floor, and each floor of section bar receives pressure to diminish, and non-deformable improves joint strength.
At least one step on the threaded sleeve is of a non-circular structure; preferably, the outer edge of the step at the large end of the threaded sleeve is provided with a positioning plane 102; effectively prevent to twist and move the screw sleeve when fastening and follow and change.
After the threaded sleeve is inserted into the mounting hole, the end face of the threaded sleeve is flush with the outer surface of the aluminum profile; when the sealing gasket is matched with other surfaces, the surfaces can be attached to each other, and the sealing property is better.
Preferred embodiments of the present invention are:
as shown in fig. 1 to 5, sheathed tube pole portion appearance is the unequal circular step of a plurality of diameters, has a step to make noncircular structure, considers cavity aluminium alloy hole processing difficulty degree, generally chooses to be the outermost end, processes into waist shape or other noncircular forms, follows the commentaries on classics when preventing to twist external screw thread fastener, the height of every circular platform and the position cooperation of cavity aluminium alloy muscle, the intraduct is the screw hole, can design screw thread blind hole or screw thread through-hole as required. As shown in FIG. 6, the invention only needs to open several stepped holes matched with the truncated cone of the stepped threaded sleeve on the cavity aluminum profile, assemble the stepped internal threaded sleeve therein, and connect the other end with the bolt assembly.
Fig. 7 is an assembly schematic diagram of the stepped internal thread sleeve inserted into the cavity section aluminum profile: the installation contact surface of notch cuttype threaded sleeve pipe and cavity aluminium alloy has the several, has increased area of contact promptly, bears the area increase of axial force promptly, and each floor of section bar receives pressure and diminishes, therefore joint strength obtains strengthening. The notch cuttype length has been designed, makes notch cuttype thread bush adorn back in the cavity aluminium alloy, and the whole appearance of section bar is level and smooth not have arch or sunken, can accomplish the plane and paste mutually when cooperating with other faces, and the leakproofness is also better.
As shown in fig. 8, for the connection illustration of the connection method of the present invention using the sleeve, when there is a reinforcing plate with a small thickness inside the aluminum profile 2, the profile and the connection workpiece 3 can generate a large connection tension by the multistage fit pressure bearing surface of the step, and meanwhile, by the fit of the connection bolt 4 with the internal thread hole of the sleeve, there is no step protrusion between the profile and the connection workpiece 3 similar to that generated by using a rivet nut, which can be well attached, and is beneficial to sealing.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (9)
1. The utility model provides a section bar threaded sleeve connection structure, includes aluminium alloy and threaded sleeve, be equipped with the floor in the aluminium alloy, be equipped with screw hole, its characterized in that in the threaded sleeve: the outer edge of the threaded sleeve is provided with a step, the aluminum profile is internally provided with an assembly hole matched with the threaded sleeve, the step on the threaded sleeve is positioned in the aluminum profile, and the surface of the step is attached to the rib plate.
2. The profile threaded sleeve connection of claim 1, wherein: the threaded sleeve is of a stepped cylindrical structure.
3. The profile thread bushing connection of claim 1, wherein: the steps on the outer edge of the threaded sleeve are a group arranged along the axial direction of the sleeve.
4. The profile thread bushing connection of claim 1, wherein: after the threaded sleeve is inserted into the mounting hole, the end face of the threaded sleeve is flush with the outer surface of the aluminum profile.
5. The profile threaded sleeve connection of claim 1, wherein: at least one step on the threaded sleeve is of a non-circular structure.
6. The profile thread bushing connection structure of claim 3, wherein: rib in the aluminium alloy is for a set of that sets up side by side, all is equipped with on the rib and corresponds part matched with through-hole with the screw sleeve, and a set of through-hole forms the shoulder hole structure.
7. The profile threaded sleeve connection of claim 3, wherein: a group of steps of the threaded sleeve is sequentially reduced from the large end to the small end in outer diameter.
8. The profile thread bushing connection structure of claim 5, wherein: and the outer edge of the step at the large end of the threaded sleeve is provided with a positioning plane.
9. The profile thread bushing connection of claim 6, wherein: the step surface of each step on the threaded sleeve is attached to the corresponding rib plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211012848.7A CN115320730B (en) | 2022-08-23 | 2022-08-23 | Profile threaded sleeve connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211012848.7A CN115320730B (en) | 2022-08-23 | 2022-08-23 | Profile threaded sleeve connecting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115320730A true CN115320730A (en) | 2022-11-11 |
| CN115320730B CN115320730B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211012848.7A Active CN115320730B (en) | 2022-08-23 | 2022-08-23 | Profile threaded sleeve connecting structure |
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| CN114017433A (en) * | 2021-11-18 | 2022-02-08 | 庆安集团有限公司 | Quick positioning and tightening device |
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| CN115320730B (en) | 2024-03-26 |
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