Automobile front anti-collision cross beam connecting structure and manufacturing process thereof

Abstract

The invention relates to the technical field of installation of automobile front anti-collision cross beams, and discloses an automobile front anti-collision cross beam connecting structure and a manufacturing technology thereof.The automobile front anti-collision cross beam connecting structure comprises a front anti-collision cross beam, an automobile body connecting beam and an installing assembly used for connecting the front anti-collision cross beam and the automobile body connecting beam, and multiple sets of fixing cavities are symmetrically formed in the two ends of the front anti-collision cross beam; multiple groups of first mounting holes and second mounting holes corresponding in position are formed in the inner wall and the outer wall of the fixing cavity respectively; a plurality of sets of third mounting holes corresponding to the first mounting holes and the second mounting holes in position are formed in the front wall of the front end of the vehicle body connecting beam. Therefore, the overall strength of the connecting position of the front anti-collision beam and the vehicle body connecting beam is enhanced, the problem that a collision force transmission path is changed due to the fact that the front anti-collision beam is pulled out at the connecting position too early in the using process is solved, the impact resistance of a vehicle body is improved, and the using safety of the vehicle is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile front anti-collision beam mounting, in particular to an automobile front anti-collision beam connecting structure and a manufacturing process thereof. BACKGROUND

[0002] At present, an anti-collision beam structure is arranged in the automobile front door structure to strengthen the impact capacity of the front door, and the anti-collision beam structure can be used as an important safety component of the whole vehicle, can effectively absorb the impact energy when the vehicle body collides, and reduces the damage degree of the impact on the vehicle body, so as to ensure the safety of passengers.

[0003] In the prior art, the connecting mode of the automobile anti-collision beam and the vehicle body connecting beam is basically connected through multiple groups of bolts, the bolts pass through the bolt through holes 1-1 on the outer arc surface of the anti-collision beam cavity, and the inner arc surface of the anti-collision beam cavity is directly screwed with the end portion of the vehicle body connecting beam. The contact area of this mounting structure is small, the overall connection strength is reduced, and when the vehicle body collides at high speed, the connection part is easily torn, the anti-collision beam is easily pulled off at the connection part, and the safety in use is reduced. SUMMARY

[0004] In order to solve the problem that in the prior art, the connecting mode of the automobile anti-collision beam and the vehicle body connecting beam is basically connected through multiple groups of bolts, the bolts pass through the bolt through holes on the outer arc surface of the anti-collision beam cavity, and the inner arc surface of the anti-collision beam cavity is directly screwed with the end portion of the vehicle body connecting beam. The contact area of this mounting structure is small, the overall connection strength is reduced, and when the vehicle body collides at high speed, the connection part is easily torn, the anti-collision beam is easily pulled off at the connection part, and the safety in use is reduced, the application provides an automobile front anti-collision beam connecting structure and a manufacturing process thereof.

[0005] The automobile front anti-collision beam connecting structure and the manufacturing process thereof provided by the application adopt the following technical scheme:

[0006] An automobile front anti-collision beam connecting structure comprises a front anti-collision beam, a vehicle body connecting beam and a mounting assembly for connecting the front anti-collision beam and the vehicle body connecting beam, multiple groups of fixing cavities are symmetrically arranged in the inner portion of the front anti-collision beam, and multiple groups of first mounting holes and second mounting holes corresponding in position are arranged on the inner and outer walls of the fixing cavities.

[0007] A plurality of third mounting holes corresponding in position to the first mounting holes and the second mounting holes are arranged on the front wall of the front end of the vehicle body connecting beam.

[0008] The mounting assembly comprises a plurality of first positioning sleeves embedded in the plurality of sets of fixing cavities and a plurality of second positioning sleeves mounted on the front wall of the vehicle body connecting beam, through holes are formed in the axial centers of the first positioning sleeves and the second positioning sleeves, nuts are mounted on the front end rear wall of the vehicle body connecting beam and outside the third mounting holes, and the front anti-collision cross beam is assembled and connected with the nuts by bolts penetrating through the front anti-collision cross beam, the first positioning sleeves, the second positioning sleeves and the vehicle body connecting beam in sequence.

[0009] Preferably, the inner wall diameter of the first positioning sleeve is greater than the inner wall diameter of the second positioning sleeve.

[0010] Preferably, a plurality of positioning blocks are arranged at equal intervals in the circumferential direction of the surface of the second positioning sleeve.

[0011] Preferably, a plurality of positioning grooves matched with the positioning blocks are arranged at equal intervals in the circumferential direction of the inner wall of the first positioning sleeve.

[0012] Preferably, the positioning blocks and the positioning grooves adopt isosceles trapezoidal structures.

[0013] Preferably, assembly holes are formed outside the second mounting holes, the screw rod penetrates through the second mounting holes, the first positioning sleeves, the second positioning sleeves, the first mounting holes and extends into the vehicle body connecting beam in sequence through the assembly holes, and sealing covers are threadedly connected outside the assembly holes.

[0014] The manufacturing process of the automobile front anti-collision cross beam connecting structure, the cleaning process steps are as follows:

[0015] Step one: first, a plurality of first mounting holes and second mounting holes are respectively formed on the inner and outer walls of the fixing cavities at both ends of the front anti-collision cross beam by a hole opener, so that the first mounting holes and the second mounting holes at opposite positions can coincide with each other, and a plurality of third mounting holes are formed on the front end front wall of the vehicle body connecting beam, so that the spacing of the plurality of third mounting holes is the same as the spacing of the plurality of first mounting holes and the plurality of second mounting holes;

[0016] Step two: the inner walls of the plurality of first positioning sleeves are sequentially expanded and formed with a plurality of positioning grooves, and the first positioning sleeves are welded and mounted into the fixing cavities at both ends of the front anti-collision cross beam, so that the through holes in the first positioning sleeves are at the same axial center as the first mounting holes and the second mounting holes;

[0017] Step three: a plurality of second positioning sleeves are welded and fixedly mounted on the front wall of the vehicle body connecting beam, so that the spacing of the plurality of welded second positioning sleeves is the same as the spacing of the plurality of first positioning sleeves, and a plurality of nuts are welded and mounted on the front end rear wall of the vehicle body connecting beam;

[0018] Step four: sequentially pass the bolt end of several groups through the second mounting hole, the first positioning sleeve, the second positioning sleeve, the first mounting hole on the anti-collision beam 1, the vehicle body connecting beam, and extend into the nut at the corresponding position in the vehicle body connecting beam to assemble and fix, that is, the fixed connection between the front anti-collision cross beam and the vehicle body connecting beam is completed.

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] The automobile front anti-collision cross beam connecting structure and the manufacturing process thereof, by welding and installing a plurality of second positioning sleeves on the front wall of the vehicle body connecting beam, and embedding and welding a plurality of first positioning sleeves in the front anti-collision cross beam, when installing, the positioning block outside the second positioning sleeve is inserted into the first positioning sleeve by aligning the positioning groove, after the butt joint is completed, the bolt end of several groups is passed through the second mounting hole, the first positioning sleeve, the second positioning sleeve, the first mounting hole on the front anti-collision cross beam, the vehicle body connecting beam, and extends into the nut at the corresponding position in the vehicle body connecting beam to assemble and fix, thereby enhancing the overall strength of the connection between the front anti-collision cross beam and the vehicle body connecting beam, avoiding the problem of changing the collision force transmission path caused by the front anti-collision cross beam being pulled off too early at the connection during use, and improving the impact resistance of the vehicle body, thereby enhancing the safety of the vehicle in use. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front anti-collision cross beam structure diagram of the automobile front anti-collision cross beam connecting structure in the present application.

[0022] Figure 2 It is an internal structure diagram of the automobile front anti-collision cross beam connecting structure after installation in the present application.

[0023] Figure 3 It is a first positioning sleeve structure diagram of the automobile front anti-collision cross beam connecting structure in the present application.

[0024] Figure 4 It is a second positioning sleeve structure diagram of the automobile front anti-collision cross beam connecting structure in the present application.

[0025] Figure 5 It is another view structure diagram of the first positioning sleeve of the automobile front anti-collision cross beam connecting structure in the present application.

[0026] Explanation of reference numerals: 1, front anti-collision cross beam; 2, vehicle body connecting beam; 3, fixed cavity; 4, first mounting hole; 5, second mounting hole; 6, third mounting hole; 7, first positioning sleeve; 8, second positioning sleeve; 9, through hole; 10, nut; 11, bolt; 12, positioning block; 13, positioning groove; 14, assembly hole; 15, sealing cover. DETAILED DESCRIPTION

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 5 The present invention provides the following embodiments:

[0029] Example 1:

[0030] A front anti-collision beam connection structure for automobiles includes a front anti-collision beam 1, a vehicle body connecting beam 2, and an installation assembly for connecting the front anti-collision beam 1 and the vehicle body connecting beam 2. The front anti-collision beam 1 has multiple sets of fixing cavities 3 symmetrically opened at both ends. The inner and outer walls of the fixing cavities 3 have multiple sets of first mounting holes 4 and second mounting holes 5 with corresponding positions.

[0031] Multiple sets of third mounting holes 6 are provided on the front wall of the front end of the vehicle body connecting beam 2, which correspond to the positions of the first mounting hole 4 and the second mounting hole 5.

[0032] The mounting components include multiple first positioning sleeves 7 embedded in multiple sets of fixed cavities 3 and multiple second positioning sleeves 8 installed on the front wall of the vehicle body connecting beam 2. The first positioning sleeves 7 and the second positioning sleeves 8 are both provided with through holes 9 at their axial centers. Nuts 10 are installed on the rear front wall of the vehicle body connecting beam 2 and outside the third mounting hole 6. The front anti-collision crossbeam 1 and the vehicle body connecting beam 2 are connected by bolts 11 that pass through the front anti-collision crossbeam 1, the first positioning sleeves 7, the second positioning sleeves 8 and the vehicle body connecting beam 2 and the nuts 10 in sequence.

[0033] The automotive front anti-collision beam connection structure involves welding and installing multiple second positioning sleeves 8 on the front wall of the vehicle body connecting beam 2, and embedding and welding multiple first positioning sleeves 7 inside the front anti-collision beam 1. During installation, the positioning blocks 12 on the outer side of the second positioning sleeves 8 are aligned with the positioning grooves 13 and inserted into the first positioning sleeves 7. After the alignment is completed, several sets of bolts 11 are used to pass through the second mounting holes 5, first positioning sleeves 7, second positioning sleeves 8, first mounting holes 4, and vehicle body connecting beam 2 on the front anti-collision beam 1, and extend into the vehicle body connecting beam 2 to be assembled and fixed with the nuts 10 at the corresponding positions. This enhances the overall strength of the connection between the front anti-collision beam 1 and the vehicle body connecting beam 2, and avoids the problem of altering the collision force transmission path due to premature pull-out of the front anti-collision beam 1 at the connection point during use. This improves the vehicle's impact resistance and enhances the safety of vehicle use.

[0034] The inner diameter of the first positioning sleeve 7 is larger than the inner diameter of the second positioning sleeve 8.

[0035] The second positioning sleeve 8 has multiple positioning blocks 12 evenly spaced along its circumference.

[0036] The inner wall of the first positioning sleeve 7 is provided with multiple positioning grooves 13 at equal intervals in the circumferential direction, which are adapted to the positioning block 12.

[0037] During installation, the multiple positioning blocks 12 on the outside of the second positioning sleeve 8 are aligned with the multiple positioning grooves 13 and then inserted into the first positioning sleeve 7, thereby increasing the contact area between the two and enhancing the tightness of the connection between them.

[0038] The positioning block 12 and the positioning groove 13 adopt an isosceles trapezoidal structure.

[0039] Assembly holes 14 are provided on the outer side of the second mounting hole 5. The bolt 11 passes through the assembly hole 14 in sequence through the second mounting hole 5, the first positioning sleeve 7, the second positioning sleeve 8, and the first mounting hole 4 and extends into the vehicle body connecting beam 2. A sealing cover 15 is threaded on the outer side of the assembly hole 14. After the bolt 11 is installed and fixed, the assembly hole 14 can be blocked by the sealing cover 15, which can prevent dust from entering the interior and affecting the connection effect, and also improve the aesthetics.

[0040] Example 2:

[0041] This embodiment provides a manufacturing process for a vehicle front anti-collision beam connection structure, used in a vehicle front anti-collision beam connection structure in Embodiment 1. The manufacturing process steps are as follows:

[0042] Step 1: First, using a hole-making machine, multiple sets of first mounting holes 4 and second mounting holes 5 are made on the inner and outer walls of the fixing cavities at both ends of the front anti-collision beam 1, so that the first mounting holes 4 and second mounting holes 5 in relative positions can overlap with each other. Then, multiple sets of third mounting holes 6 are made on the front wall of the front end of the vehicle body connecting beam 2, so that the spacing between the multiple sets of third mounting holes 6 is the same as the spacing between the multiple sets of first mounting holes 4 and second mounting holes 5.

[0043] Step 2: The inner walls of several sets of first positioning sleeves 7 are enlarged in sequence to form multiple positioning grooves 13. The first positioning sleeves 7 are then welded and installed into the fixing cavities 3 at both ends of the front anti-collision beam 1, so that the through hole 9 in the first positioning sleeve 7 is at the same axis as the first mounting hole 4 and the second mounting hole 5.

[0044] Step 3: Weld and fix multiple sets of second positioning sleeves 8 on the front wall of the vehicle body connecting beam 2, so that the spacing between the multiple sets of second positioning sleeves 8 is the same as the spacing between the multiple sets of first positioning sleeves 7, and weld and install multiple sets of nuts 10 on the rear front wall of the vehicle body connecting beam 2.

[0045] Step 4: Align the positioning block 12 on the outside of the second positioning sleeve 8 with the positioning groove 13 and insert it into the first positioning sleeve 7. Then, sequentially pass the ends of several sets of bolts 11 through the second mounting hole 5, the first positioning sleeve 7, the second positioning sleeve 8, the first mounting hole 4, and the vehicle body connecting beam 2 on the front anti-collision crossbeam 1, and extend them into the vehicle body connecting beam 2 to assemble and fix them with the nuts 10 at the corresponding positions. This completes the fixed connection between the front anti-collision crossbeam 1 and the vehicle body connecting beam 2.

[0046] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0047] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0048] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0049] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A front anti-collision beam connection structure for automobiles, comprising a front anti-collision beam (1), a vehicle body connecting beam (2), and an installation assembly for connecting the front anti-collision beam (1) and the vehicle body connecting beam (2), characterized in that: The front anti-collision beam (1) has multiple sets of fixing cavities (3) symmetrically opened at both ends. The inner and outer walls of the fixing cavities (3) have multiple sets of first mounting holes (4) and second mounting holes (5) with corresponding positions. The front wall of the vehicle body connecting beam (2) has multiple sets of third mounting holes (6) corresponding to the positions of the first mounting hole (4) and the second mounting hole (5); The mounting assembly includes multiple first positioning sleeves (7) embedded in multiple sets of fixed cavities (3) and multiple second positioning sleeves (8) installed on the front wall of the vehicle body connecting beam (2). The first positioning sleeves (7) and the second positioning sleeves (8) are both provided with through holes (9) at their axial centers. Nuts (10) are installed on the rear front wall of the vehicle body connecting beam (2) and on the outside of the third mounting hole (6). The front anti-collision beam (1) and the vehicle body connecting beam (2) are connected by bolts (11) that pass through the front anti-collision beam (1), the first positioning sleeves (7), the second positioning sleeves (8), the vehicle body connecting beam (2), and the nuts (10) in sequence.

2. The automotive front anti-collision beam connection structure according to claim 1, characterized in that: The inner diameter of the first positioning sleeve (7) is greater than the inner diameter of the second positioning sleeve (8).

3. The automotive front anti-collision beam connection structure according to claim 2, characterized in that: The second positioning sleeve (8) has multiple positioning blocks (12) evenly spaced in the circumferential direction.

4. The automotive front anti-collision beam connection structure according to claim 3, characterized in that: The inner wall of the first positioning sleeve (7) is provided with multiple positioning grooves (13) that are adapted to the positioning block (12) at equal intervals in the circumferential direction.

5. The automotive front anti-collision beam connection structure according to claim 4, characterized in that: The positioning block (12) and positioning groove (13) adopt an isosceles trapezoidal structure.

6. The automotive front anti-collision beam connection structure according to claim 5, characterized in that: Assembly holes (14) are provided on the outer side of the second mounting hole (5). The bolt (11) passes through the assembly hole (14) in sequence through the second mounting hole (5), the first positioning sleeve (7), the second positioning sleeve (8), and the first mounting hole (4) and extends into the vehicle body connecting beam (2). A sealing cap (15) is threaded on the outer side of the assembly hole (14).

7. The manufacturing process of the connecting structure of the front anti-collision beam of an automobile, characterized in that: The manufacturing process includes a front anti-collision beam connection structure for automobiles as described in any one of claims 1-6, wherein the manufacturing process steps are as follows: Step 1: First, using a hole-making machine, multiple sets of first mounting holes (4) and second mounting holes (5) are made on the inner and outer walls of the fixing cavities at both ends of the front anti-collision beam (1), so that the first mounting holes (4) and second mounting holes (5) in relative positions can overlap each other. Then, multiple sets of third mounting holes (6) are made on the front wall of the front end of the vehicle body connecting beam (2), so that the spacing between the multiple third mounting holes (6) is the same as the spacing between the multiple sets of first mounting holes (4) and second mounting holes (5). Step 2: The inner walls of several sets of first positioning sleeves (7) are enlarged in sequence to form multiple positioning grooves (13). The first positioning sleeves (7) are then welded and installed into the fixing cavities (3) at both ends of the front anti-collision beam (1), so that the through hole (9) in the first positioning sleeve (7) is at the same axis as the first mounting hole (4) and the second mounting hole (5). Step 3: Weld and fix multiple sets of second positioning sleeves (8) on the front wall of the vehicle body connecting beam (2) so that the spacing of the multiple sets of second positioning sleeves (8) is the same as the spacing of the multiple sets of first positioning sleeves (7), and weld and install multiple sets of nuts (10) on the rear wall of the front end of the vehicle body connecting beam (2). Step 4: Align the positioning block (12) on the outside of the second positioning sleeve (8) with the positioning groove (13) and insert it into the first positioning sleeve (7). Then, pass the ends of several sets of bolts (11) through the second mounting hole (5), the first positioning sleeve (7), the second positioning sleeve (8), the first mounting hole (4), and the vehicle body connecting beam (2) on the front anti-collision crossbeam (1) in sequence, and extend them into the vehicle body connecting beam (2) to assemble and fix them with the nuts (10) at the corresponding positions. This completes the fixed connection between the front anti-collision crossbeam (1) and the vehicle body connecting beam (2).

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