CN110159621A - Connecting unit of profile material with holes and its application method - Google Patents

Abstract

The invention belongs to the technical field of structural profiles, and relates to a profile connection assembly with holes and a method for using the same. The profile connection assembly with holes includes a pair of through-hole type connection pins, a pair of nut type connection pins and four long bolts; The hole-type connecting pin is radially pierced with a number of through holes arranged in parallel and equidistant for the long bolts to pass through, and the nut-shaped connecting pin is radially pierced with a number of parallel and equidistantly arranged through holes for matching with the long bolts. For threaded holes, the axial distance between adjacent through holes is equal to the axial distance between adjacent threaded holes. The invention can make the building structure have high comprehensive strength and precise positioning, and the deformation generated when the through-hole type connecting pin and the nut-type connecting pin are stressed can effectively prevent long bolts from loosening.

Description

Perforated profile connection assembly and method of use thereof

technical field

The invention relates to the technical field of structural profiles, in particular to a profile connection assembly with holes and a method for using the same.

Background technique

With the continuous development of the domestic automobile industry, the competition in the industry is becoming increasingly fierce, and users have higher and higher requirements for the quality of automobiles. In order to maintain product competitiveness, OEMs are accelerating the pace of model updates and launching new models. At the same time, various Automobile manufacturers are also constantly adopting new technologies and new processes, and have also turned their attention to the development of measurement technology. The development of manufacturing technology is also inseparable from measurement technology, and the two complement each other and promote each other. The new measurement technology constantly reveals the shortcomings of the new process, so that it can be further innovated and transformed to become more perfect. As the basic components of measurement technology, inspection fixtures and fixtures play an increasingly obvious role in the production site. The traditional form of special inspection fixtures and fixtures for a single car model has gradually failed to meet the requirements. Higher requirements are put forward for economy and quick response capability, so meeting multi-function, flexibility, high efficiency and low cost directly determines customer satisfaction.

As the basic structure of inspection fixtures and fixtures, aluminum profiles are not only the basis for the dimensional accuracy of the inspection fixtures and fixtures, but also the guarantee for high-precision flexibility and reliability. The basic structure of the existing inspection fixtures and fixtures basically adopts market standard trough-type industrial aluminum profiles, standard hollow square tube aluminum profiles and steel square tube profiles as the basic structure of the inspection tools, and is connected by drilling and bolts or welding. The basic structure is fastened and limited, but the weight is heavy, the surface aesthetics is poor, it cannot be disassembled repeatedly, and the surface treatment of the welded part is not easy. Therefore, using standardized aluminum profiles with holes to build a frame for installing inspection fixtures and fixtures is a solution that is convenient for storage and use.

As shown in Figure 1, a profile 1 with finishing holes 11 is currently in use. In theory, screw components can be used to build a fixed frame of any structure, but the existing T-nuts, drilling and bolts are used to connect. Poor, high space requirements, small force area and easy deformation, need to use other anti-loosening means to prevent loosening, and there are problems such as punching that cannot be standardized.

Therefore, it is necessary to develop a connection assembly supporting flexible aluminum alloy profiles to solve the above problems.

Contents of the invention

The main purpose of the present invention is to provide a section bar connection assembly with holes, which can complete the assembly of specific section bars with holes with high precision.

The present invention achieves the above object through the following technical solutions: a profile connection assembly with holes, comprising a pair of through-hole type connection pins, a pair of nut-type connection pins and four long bolts; There are a number of through holes arranged in parallel and equidistant for the long bolts to pass through, and the nut type connecting pin is radially pierced with a number of threaded holes arranged in parallel and equidistant to cooperate with the long bolts, and the adjacent through holes The axial distance is equal to the axial distance of adjacent threaded holes.

Specifically, one side of the through hole is provided with a platform surface for clinging to the nut part of the long bolt.

Specifically, two through holes are provided on the through hole type connecting pin.

Specifically, the nut-type connecting pin is provided with two threaded holes.

Further, the connection assembly also includes two profile end covers, and the profile end covers are provided with four through holes arranged in an array for the long bolts to pass through.

Further, a positioning sleeve is provided between the two profile end covers, and the positioning sleeve passes through the two opposite through holes and is passed by the long bolt.

The use method of the section bar connection assembly with holes, two through hole type connection pins are installed in parallel in one section bar with holes, the nut type connection pins are installed in parallel in the other section bar with holes, the long bolts pass through the holes and Tighten with nut-type connecting pins.

Specifically, when the profile with holes is assembled end-to-end, the through-hole type connecting pin, the nut-type connecting pin and the long bolt are assembled orthogonally.

Specifically, when the profile with holes is assembled end-to-side, the through-hole type connecting pin and the nut-type connecting pin are assembled in parallel.

Adopt above-mentioned technical scheme, the beneficial effect of technical scheme of the present invention is:

The invention can make the building structure have high comprehensive strength and precise positioning, and the deformation generated when the through-hole type connecting pin and the nut-type connecting pin are stressed can effectively prevent long bolts from loosening.

Description of drawings

Fig. 1 is the perspective view of the profile with holes;

Fig. 2 is the assembling diagram of embodiment banded profile connection assembly;

Fig. 3 is the exploded view of embodiment banded profile connection assembly;

Figure 4 is an exploded view of the end-to-end connection mode of the profile with holes;

Fig. 5 is the assembly diagram of the end-to-end connection mode of the profile with holes;

Figure 6 is a partial cutaway view of the end-to-side connection of the perforated profile.

The numbers in the figure indicate:

1- profile with holes, 11- finishing holes;

2-through hole type connection pin, 21-step surface;

3-nut type connecting pin, 31-threaded hole;

4-long bolt, 41-nut part;

5-profile end cover, 51-perforation;

6-Positioning sleeve.

Detailed ways

The present invention will be described in further detail below in conjunction with specific embodiments.

Example

As shown in Figures 1 to 5, the present invention is a connection assembly with holes, including a pair of through-hole type connection pins 2, a pair of nut-type connection pins 3 and four long bolts 4; through-hole type connection pins 2 There are two parallel through holes (not marked) through which the long bolts 4 pass through in the radial direction, and two parallel threaded holes 31 matched with the long bolts 4 are arranged in the radial direction of the nut type connecting pin 3, and the adjacent through holes The axial spacing of the holes is equal to the axial spacing of adjacent threaded holes 31 . Two through-hole connecting pins 2 are installed in parallel in one profile 1 with holes, and nut-type connecting pins 3 are installed in parallel in the other profile 1 with holes. Long bolts 4 pass through the through holes and are tightened with nut-type connecting pins 3. The through-hole type connecting pin 2, the nut type connecting pin 3 and the long bolt 4 are assembled orthogonally. Each through-hole type connecting pin 2 can pass through two finishing holes 11 on its perforated profile 1 (the axial direction of the through-hole type connecting pin 2 is defined as the X direction), and each nut-type connecting pin 3 can pass through Two finishing holes 11 on another profile 1 with holes (define the axial direction of the nut type connecting pin 3 as the Y direction), the long bolt 4 will pull the through hole type connecting pin 2 and the nut type connecting pin 3 from the Z direction. In the self-adaptive state, the two perforated profiles 1 to be connected can achieve a suitable parallelism or perpendicularity, and the overall strength of the building structure is high, and the positioning is accurate. The through-hole type connection pin 2 and the nut type connection pin 3. The deformation generated when the force is applied can effectively prevent the long bolt 4 from loosening. Because the perforated profile 1 can also have more than 3 rows of finishing holes 11, the number of through holes on the through hole type connecting pin 2 and the number of threaded holes 31 on the nut type connecting pin 3 can be increased as required. between them and between the threaded holes 31 can be arranged equidistantly.

As shown in FIG. 3 , one side of the through hole is provided with a platform surface 21 for tightly fitting the nut portion 41 of the long bolt 4 . The platform surface 21 can provide a surface support for the nut part 41, so that the long bolt 4 and the through-hole type connecting pin 2 can have better perpendicularity.

As shown in FIG. 2 to FIG. 4 , the connection assembly further includes two profile end caps 5 , and the profile end caps 5 are provided with four perforations 51 arranged in an array for the long bolts 4 to pass through. The perforated profile 1 itself is generally a strip tube without end caps, and the profile end cap 5 provides a base surface for fixing. If the perforated profile 1 is fixed side-to-side, the end cap 5 is not needed; if the perforated profile 1 is fixed end-to-end, two profile end caps 5 need to be used at the same time; if the perforated profile 1 If it is fixed end-to-side, only one end cap 5 is needed.

As shown in FIGS. 2 to 4 , a positioning sleeve 6 is provided between the two profile end covers 5 , and the positioning sleeve 6 passes through the two opposite through holes 51 and is passed through by the long bolt 4 . The positioning sleeve 6 is used to limit the position between the two profile end covers 5 and the position of the long bolt 4 relative to the perforation 51, so that the coaxiality of the two is higher and the strength of the structure is ensured.

As shown in FIG. 6 , when the perforated profile 1 is assembled end-to-side, the through-hole type connecting pin 2 and the nut-type connecting pin 3 are assembled in parallel. During end-to-side assembly, the two perforated profiles 1 have side faces on the same plane, and the hole-type connecting pin 2 and the nut-type connecting pin 3 are assembled in parallel, so that the side alignment is more convenient. The profile end cap 5 is installed on the profile with holes 1 assembled on the end face as a position-limiting structure, so that the verticality of the two profiles with holes 1 can be improved.

What have been described above are only some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims (9)

1. A profile connection assembly with holes, characterized in that: it includes a pair of through-hole type connection pins, a pair of nut-type connection pins and four long bolts; The through holes for the long bolts are arranged at a distance from each other, and the nut-type connecting pins are radially pierced with a number of threaded holes arranged in parallel and equidistant to cooperate with the long bolts, and the axial distance between adjacent through holes is equal to Axial distance between adjacent threaded holes. 2. The profile connection assembly with holes according to claim 1, characterized in that: one side of the through hole is provided with a platform surface for clinging to the nut portion of the long bolt. 3. The section bar connection assembly with holes according to claim 1, characterized in that two through holes are provided on the through hole type connecting pin. 4. The profile connection assembly with holes according to claim 1, wherein two threaded holes are provided on the nut type connection pin. 5. The profile connection assembly with holes according to claim 1, characterized in that: the connection assembly further comprises two profile end caps, and the profile end caps are provided with four arrays for the long bolts piercing through. 6. The profile connection assembly with holes according to claim 5, characterized in that: a positioning sleeve is provided between the two profile end caps, and the positioning sleeve passes through the two opposite perforations and is passed by the long bolt . 7. A method for using the perforated profile connection assembly according to any one of claims 1 to 5, characterized in that: two through-hole type connection pins are installed in parallel in one perforated profile, and the nut type connection pins are parallel Mounted in another perforated profile, the long bolt is passed through the through hole and tightened with a nut type connecting pin. 8. The method of use according to claim 7, characterized in that: when the perforated profiles are assembled end-to-end, the through-hole type connecting pin, the nut-type connecting pin and the long bolt are assembled orthogonally. 9. The use method according to claim 7, characterized in that: when the profile with holes is assembled end-to-side, the through-hole type connecting pin and the nut-type connecting pin are assembled in parallel.