CN115320730B - Profile threaded sleeve connecting structure - Google Patents
Profile threaded sleeve connecting structure Download PDFInfo
- Publication number
- CN115320730B CN115320730B CN202211012848.7A CN202211012848A CN115320730B CN 115320730 B CN115320730 B CN 115320730B CN 202211012848 A CN202211012848 A CN 202211012848A CN 115320730 B CN115320730 B CN 115320730B
- Authority
- CN
- China
- Prior art keywords
- threaded sleeve
- profile
- sleeve
- threaded
- aluminum profile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 38
- 229910000838 Al alloy Inorganic materials 0.000 claims 2
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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 profile threaded sleeve connecting structure which comprises an aluminum profile and a threaded sleeve, wherein a rib plate is arranged in the aluminum profile, a threaded hole is arranged in the threaded sleeve, a step is arranged on the outer edge of the threaded sleeve, an assembly hole matched with the threaded sleeve is arranged in the aluminum profile, the step on the threaded sleeve is positioned in the aluminum profile, and the step surface is attached to the rib plate. The contact surface between the multi-step surface structure of the profile sleeve and the rib plates of the profile is increased to increase the connection strength, and the rib plates of the profile are in smooth contact connection, so that the pressure intensity of each rib plate of the profile is reduced, the connection strength is high, the profile is matched smoothly, and the sealing performance is good.
Description
Technical Field
The invention relates to the technical field of aluminum profile automobile body connection, in particular to a profile threaded sleeve connection structure.
Background
The weight reduction of the automobile body is very important for new energy automobiles, so that the aluminum profile is increasingly applied to the field of automobile bodies, but the technical proposal for the detachable high-strength connection of the aluminum profile with the cavity section is very few. The existing detachable connection modes of the cavity section aluminum profile in the field of automobile bodies mainly comprise the following steps: firstly, a first connecting cavity aluminum profile is pressed into a blind rivet nut, a second connecting cavity aluminum profile is drilled with a through hole and then is connected by screwing a bolt, the connecting mode is that the profile pressed into by the blind rivet nut has the requirement on the thickness of a pressed wall, the wall thickness cannot be too thick, and the technical cost is that the nominal diameter of the existing blind rivet nut is generally smaller than 12mm, so that the connecting method can only be used in the occasion with low requirement on the connecting strength, the number of the blind rivet nuts is required to be increased, the labor hour and the material cost are increased undoubtedly, and the blind rivet nut is provided with a boss on the connecting surface, so that the complete joint connection of the two pieces is influenced, the blind rivet nut is required to be overcome, and the surface of the piece is required to be opened with a counter bore, and the labor hour is increased to increase the cost; secondly, the first and second connecting cavity section aluminum profiles are perforated and welded with smooth through hole sleeves or internal thread sleeves, and then are connected through bolts and nuts, so that the mode can provide higher connecting strength, but the mode still has the defects in several aspects: 1) the welding requirement of the aluminum profile is high, the welding process needs to add a lot of working hours and cost, 2) the strength of materials around the welding line can be reduced by the welding of the aluminum profile, and 3) the connecting matching surface is provided with a bulge, so that the sealing is not facilitated.
As disclosed in chinese patent CN202251344U, a flat head riveting nut, which is a detachable connection mode of an aluminum profile used in the automotive field and is screwed into a workpiece by a bolt, is a common connection mode of flat head riveting nut, and when the nut is used, only the rod part of the nut is pressed into a machined round hole on an assembling surface, a certain connection strength is obtained by friction force, but the head part of the nut is supported on a mounting surface in such a mode, so that a gap with flat head thickness is formed between two connecting pieces, which results in poor sealing effect, and the nut cannot provide a larger connection strength requirement due to limited friction force after being mounted.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide the threaded sleeve connecting structure for the sectional material, so as to achieve the purposes of high connecting strength and good sealing performance.
In order to solve the technical problems, the invention adopts the following technical scheme:
the section bar screw thread sleeve connection structure comprises an aluminum section bar and a screw thread sleeve, wherein a rib plate is arranged in the aluminum section bar, a threaded hole is arranged in the screw thread sleeve, a step is arranged on the outer edge of the screw thread sleeve, an assembly hole matched with the screw thread sleeve is arranged in the aluminum section bar, and the step on the screw thread sleeve is positioned in the aluminum section bar and is attached to the rib plate.
Further:
the appearance of the threaded sleeve is of a stepped cylinder 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 rib plates in the aluminum profile are a group of rib plates which are arranged side by side, through holes matched with the corresponding parts of the threaded sleeves are formed in the rib plates, and the group of through holes form a stepped hole structure.
The outer diameter of the thread sleeve is sequentially reduced from the large end to the small end.
And a positioning plane is arranged on the outer edge of the large end step of the threaded sleeve.
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:
the profile threaded sleeve connecting structure is reasonable in design, the contact surface between the profile threaded sleeve and the profile rib plate is increased through the increase of the multi-step surface structure of the profile threaded sleeve, the profile rib plate is in smooth contact connection, the pressure intensity of each rib plate of the profile is reduced, the connection strength is high, the profile is smooth in matching, and the sealing performance is good.
Drawings
The contents and the marks in the drawings expressed in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic view of a threaded sleeve according to 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 present invention.
Fig. 7 is a schematic view of the blind threaded sleeve of the present invention assembled in a profile.
Fig. 8 is a schematic view of the through-hole threaded sleeve of the present invention assembled in a profile.
Fig. 9 is a schematic view of the assembled connection of the present invention.
In the figure:
1. the device comprises a threaded sleeve, a threaded hole, a positioning plane, a step, an aluminum profile, an assembly hole, a rib plate, a connecting workpiece and a connecting bolt.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings, which illustrate in further detail.
As shown in fig. 1 to 9, the profile threaded sleeve connecting structure comprises an aluminum profile 2 and a threaded sleeve 1, wherein a rib plate 202 is arranged in the aluminum profile, 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 profile, and the step on the threaded sleeve is positioned in the aluminum profile and the step surface is attached to the rib plate.
The invention increases the connection strength by increasing the contact surface between the multi-step surface structure of the profile sleeve and the rib plates of the profile, and enables the profile rib plates to be in smooth contact connection, so that the pressure intensity of each rib plate of the profile is reduced, the connection strength is high, the profile is matched smoothly, and the sealing performance 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; the outer diameter of the thread sleeve is sequentially reduced from the large end to the small end, the thread sleeve is in a stepped cylinder structure, and the structure is simple to form.
The rib plates in the aluminum profile 2 are a group of rib plates which are arranged side by side, through holes matched with the corresponding parts of the threaded sleeves are formed in the rib plates, the group of through holes form a stepped hole structure, machining is simple and convenient, step faces of each step on the threaded sleeves are attached to the corresponding rib plates, fixed acting force acts on each rib plate, the pressure of each rib plate of the profile is reduced, deformation is difficult, and the connection strength is improved.
At least one step on the threaded sleeve is of a non-circular structure; preferably, a positioning plane 102 is arranged on the outer edge of the large end step of the threaded sleeve; the threaded sleeve is effectively prevented from rotating along with screwing and fastening.
After the threaded sleeve is inserted into the mounting hole, the end surface of the threaded sleeve is flush with the outer surface of the aluminum profile; the plane can be attached when the sealing plate is matched with other surfaces, and the sealing performance is better.
Preferred specific examples of the present invention are:
as shown in fig. 1 to 5, the shape of the stem portion of the sleeve is a plurality of circular steps with different diameters, one step is made into a non-circular structure, the processing difficulty of the cavity aluminum profile hole is considered, the processing is generally selected to be the outermost end, the processing is made into a waist shape or other non-circular shapes, the follow-up rotation is prevented when the external threaded fastener is screwed, the height of each circular table is matched with the position of the cavity aluminum profile rib, the sleeve is internally provided with a threaded hole, and a threaded blind hole or a threaded through hole can be designed according to requirements. As shown in fig. 6, the invention only needs to open a plurality of stepped holes matched with the stepped threaded sleeve round table on the cavity aluminum profile, the stepped internal threaded sleeve is assembled in the stepped hole, and the other end of the stepped internal threaded sleeve is assembled and connected by bolts.
Fig. 7 is an assembly schematic diagram of a stepped internal thread bushing inserted into a cavity section aluminum profile: the installation contact surface of the stepped threaded sleeve and the cavity aluminum profile is provided with a plurality of installation contact surfaces, which is equivalent to the increase of the contact area, namely the area bearing the axial force is increased, and each rib plate of the profile is subjected to the pressure intensity to be reduced, so that the connection strength is enhanced. After the step-shaped length is designed, the step-shaped threaded sleeve is arranged in the cavity aluminum profile, the whole profile of the profile is smooth and has no protrusion or depression, and the profile can be attached to a plane when being matched with other surfaces, so that the sealing performance is better.
As shown in fig. 8, in the connection illustration of the connection method of the sleeve, when the inside of the aluminum profile 2 is provided with the reinforcing rib plate with small thickness, the profile and the connecting workpiece 3 can generate larger connection tensile force through the multistage cooperation bearing surfaces of steps, meanwhile, the connecting bolt 4 is adopted to be matched with the internal threaded hole of the sleeve, and the profile and the connecting workpiece 3 are not provided with step protrusions similar to those generated by using a rivet nut, so that the connection method can be well attached and is beneficial to sealing.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and the above-described technical features may be arbitrarily combined to form a plurality of embodiments of the present invention.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied to other applications without any modification, as long as the inventive concept and technical scheme are adopted.
Claims (3)
1. The utility model provides a section bar screw thread sleeve connection structure, includes aluminium alloy and screw thread sleeve, be equipped with the floor in the aluminium alloy, be equipped with the screw hole in the screw thread sleeve, its characterized in that: the outer edge of the threaded sleeve is provided with a step, an assembly hole matched with the threaded sleeve is formed in the aluminum profile, the step on the threaded sleeve is positioned in the aluminum profile, and the step surface is attached to the rib plate;
the steps on the outer edge of the threaded sleeve are a group arranged along the axial direction of the sleeve; the rib plates in the aluminum profile are a group of rib plates arranged side by side, through holes matched with the corresponding parts of the threaded sleeves are formed in the rib plates, and the group of through holes form a stepped hole structure; the step surface of each step on the threaded sleeve is attached to the corresponding rib plate;
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; and a positioning plane is arranged on the outer edge of the large end step of the threaded sleeve.
2. The profile threaded sleeve connection as in claim 1, wherein: the appearance of the threaded sleeve is of a stepped cylinder structure.
3. The profile threaded sleeve connection as in claim 1, wherein: the outer diameter of the thread sleeve is sequentially reduced from the large end to the small end.
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 CN115320730A (en) | 2022-11-11 |
| CN115320730B true CN115320730B (en) | 2024-03-26 |
Family
ID=83925565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211012848.7A Active CN115320730B (en) | 2022-08-23 | 2022-08-23 | Profile threaded sleeve connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115320730B (en) |
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| CN213478907U (en) * | 2020-09-11 | 2021-06-18 | 鸿基伟业(苏州)汽车零部件有限公司 | Novel anti-loosening screw and nut combined piece structure |
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| CN212337864U (en) * | 2020-05-25 | 2021-01-12 | 温州君杰机车部件有限公司 | Automobile locking bolt |
| CN213478907U (en) * | 2020-09-11 | 2021-06-18 | 鸿基伟业(苏州)汽车零部件有限公司 | Novel anti-loosening screw and nut combined piece structure |
| CN214028877U (en) * | 2020-12-09 | 2021-08-24 | 江苏振翔车辆装备股份有限公司 | Platform stand aluminium alloy |
| CN113492915A (en) * | 2021-05-18 | 2021-10-12 | 华中科技大学 | All-aluminum alloy mortise and tenon type hard point assembly of mini bus frame |
| CN217055836U (en) * | 2021-10-11 | 2022-07-26 | 沈阳敏能汽车零部件有限公司 | Section bar pressure riveting threaded sleeve structure |
| CN114109994A (en) * | 2021-11-08 | 2022-03-01 | 奇瑞汽车股份有限公司 | Bolt and fastening structure |
| CN114017433A (en) * | 2021-11-18 | 2022-02-08 | 庆安集团有限公司 | Quick positioning and tightening device |
| CN216969317U (en) * | 2021-12-06 | 2022-07-15 | 北京车和家汽车科技有限公司 | Mounting structure, battery package and vehicle in middle of battery package |
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