CN215409641U

CN215409641U - Efficient fixing pin with flat groove

Info

Publication number: CN215409641U
Application number: CN202122984222.XU
Authority: CN
Inventors: 王长土
Original assignee: Ningbo Changhua Changsheng Auto Parts Co ltd
Current assignee: Ningbo Changhua Changsheng Auto Parts Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-01-04
Anticipated expiration: 2031-12-01

Abstract

The utility model provides an efficient fixing pin with a flat groove, which is used for fixing assembled plate holes and comprises a positioning groove, an adjusting cylinder, a hexagonal column and a flange part, wherein the positioning groove, the adjusting cylinder, the hexagonal column and the flange part are sequentially connected; the constant head tank is a lamellar body, the constant head tank includes two location parallel planes that correspond and two location arcwall faces that correspond, two the location arcwall face is concentric. This application afterbody has increased the constant head tank, can guide the fixed position of packing into through the constant head tank when packing into the panel hole.

Description

Efficient fixing pin with flat groove

Technical Field

The utility model relates to the field of automobile fastening, in particular to a high-efficiency fixing pin with a flat groove used on an automobile.

Background

With the development of science and technology and the progress of technology, automobile products are changing day by day, and lightweight design is imperative. Automobile parts are an important field participating in globalization in the automobile industry in China, and therefore fastener products face higher requirements and need higher safety and higher cost performance to better cope with the ever-changing market. The high demands of the fasteners often require special designs to meet the needs of the user, while more advanced and sophisticated forming processes are required to support.

After a period of time, the quality of the parts, connections and fasteners changes due to wear of the parts, rough bumps due to uneven road depressions, damage to chassis parts, wear of tires, etc. Once the mass change occurs, safety problems such as abnormal wear of tires, accelerated wear of parts, drifting of vehicles during running, increased fuel consumption, etc. may occur. When the fastener such as a bolt needs to be detached during maintenance and disassembly, the thread of the fastener such as the bolt fails due to repeated disassembly and assembly, resonance and fatigue damage are easily caused, and the service life of a product is influenced.

With the expansion of the domestic automobile consumption market and the increasing diversification of the automobile using concept of people, in order to better cope with the ever-changing market, a more updated and more comprehensive fastener product is needed, and better and more convenient automobile safety is created for consumers. For the bolt connecting fasteners at the positions of mounting hinges of a tail door of an automobile, a front auxiliary frame and the like, the problems of gun clamping, slipping and the like during assembly are often troubled for assemblers.

Thus, the prior art fixing pins, and also the lifting place.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a fixing pin with a high-efficiency positioning function of a tail end with a flat groove, so as to solve the problems in the prior art.

According to one aspect of the utility model, an efficient fixing pin with a flat groove is provided for fixing assembled plate holes, and comprises a positioning groove, an adjusting cylinder, a hexagonal column and a flange part, wherein the positioning groove, the adjusting cylinder, the hexagonal column and the flange part are sequentially connected; the positioning groove is a sheet body and comprises two positioning parallel surfaces corresponding to each other and two positioning arc-shaped surfaces corresponding to each other, and the two positioning arc-shaped surfaces are concentric; and one side of the adjusting cylinder, which faces the positioning arc-shaped surface of the positioning groove, is provided with an adjusting notch, and the adjusting notch is a small flat square on the cylinder and is used for adjusting the position during assembly.

Preferably, the efficient fixing pin with the flat groove is a regular hexagon, and two parallel sides of the hexagonal column corresponding to each other are parallel to two positioning parallel surfaces of the positioning groove, so as to determine the angular position of the hexagonal column.

Preferably, the efficient fixing pin with the flat groove comprises two flange part parallel surfaces corresponding to each other and two flange part arc-shaped surfaces corresponding to each other, wherein the two flange part parallel surfaces of the flange part are parallel to the two positioning parallel surfaces of the positioning groove, and are used for determining the angular position of the positioning groove.

Preferably, the efficient fixing pin with the flat groove is provided with a cross-shaped groove on the end face of the positioning groove, and the cross-shaped groove is used for preventing the fixing pin from rotating in the manufacturing and forming process.

The design idea of the application is that a fixing pin with a positioning function and a flat groove at the tail end is designed, and when the fixing pin and an opponent part are installed, double-groove positioning is directly formed, so that steering is not caused; the problems of steering, slipping and plate damage in the assembly process are avoided. When the common pin is inclined or screwed into the inner hole in other abnormal forms, the problems of steering, gun blocking, seizure and the like easily occur, and the assembly efficiency and the operation safety are influenced. Compared with a bolt with a common guide, the fixing pin with the groove has the advantages that the positioning groove is additionally arranged at the tail part, the fixing position can be guided to be arranged in the inner hole of the plate through the two grooves, and the fixing function can be realized by smoothly arranging the plate hole. The fixing pin with the groove is suitable for manual assembly and automatic assembly.

Compared with the prior art, the utility model has the following beneficial effects:

firstly, double-flat-square positioning is directly formed during installation, and the force of an assembly part is directly applied to a cylinder to be not turned during the double-flat-square positioning;

secondly, the positioning groove is additionally arranged at the tail part of the plate, the plate can be guided to be arranged in a fixed position through the positioning groove when being arranged in an inner hole of the plate, the left direction and the right direction of the positioning groove can be universal when being assembled, and the difficulty in assembly positioning identification is reduced;

third, this application both is applicable to manual assembly, also is applicable to automatic assembly.

Of course, it is not necessary to implement any particular embodiment of the present disclosure to achieve all of the above technical effects at the same time.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a fixation pin according to the present application;

FIG. 2 is a schematic top view of FIG. 1;

fig. 3 is a left side view of fig. 1.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the utility model. All falling within the scope of the present invention.

Please refer to fig. 1, fig. 2 and fig. 3, which are schematic diagrams of a flat groove fixing pin according to the present application, the flat groove fixing pin is used to fix an assembled plate hole, the plate hole is shaped like a flat square, and when the plate hole is fixed, the flat groove fixing pin is sunk into the plate hole and then welded to be firmly fixed. The fixing pin comprises a positioning groove 11, an adjusting cylinder 12, a hexagonal column 13 and a flange part 14, wherein the positioning groove 11, the adjusting cylinder 12, the hexagonal column 13 and the flange part 14 are sequentially connected; the positioning groove 11 is a sheet, the positioning groove 11 comprises two positioning parallel surfaces corresponding to each other and two positioning arc surfaces corresponding to each other, the two positioning arc surfaces are concentric, as shown in the figure, the positioning groove 11 is a cylinder and two cutters parallel to each other at positions with equidistant circle centers, namely, 2 flat squares and 2 circular arcs are connected, so that the circle centers of the two positioning arc surfaces are the same, namely concentric for short, in terms of a processing technology, the positioning groove 11 is formed by one-time cold extrusion, and the consistency of the width of a product positioning groove, the height of the positioning groove and the length of the positioning groove is ensured through the layout of a tool and equipment; the positioning function can be effectively completed under the condition that the appearance of the tail end of the fixing pin with the flat groove is good. In fig. 3, the end surface of the positioning groove is provided with a cross-shaped groove, and the cross-shaped groove arranged at the end part can prevent the fixing pin from rotating in an auxiliary role in manufacturing and forming.

In addition, the cylinder of the adjusting cylinder 12 comprises 2 small flat squares for adjusting the positioning relationship between the positioning groove 11 and the plate holes during assembly; the hexagonal column 13 is a regular hexagon for enhancing the strength of the head force, two parallel sides of the hexagonal column 13 corresponding to each other are parallel to two positioning parallel surfaces of the positioning groove 11, and in fig. 3, the center of the hexagonal column 13 is concentric with the center of the positioning groove 11. With the design, after the positioning groove 11 is effectively positioned, the angle position of the hexagonal column 13 can be clearly known, and the hexagonal column is convenient to connect with a counter-element.

In addition, flange portion 14 includes two flange portion parallel surfaces that correspond each other and two flange portion arcwall faces that correspond each other, the oval-shaped design of flange portion 14 does benefit to and puts into the diaphragm orifice and carries out the counter bore welding to the outward appearance is pleasing to the eye, two of flange portion 14 flange portion parallel surfaces with two of constant head tank 11 the location parallel surfaces are parallel, in fig. 3, the center of flange portion 14 with the center of constant head tank 11 is concentric. With such a design, after the positioning groove 11 is effectively positioned, the angular position of the flange portion 14 can be known clearly, which facilitates the connection with the counterpart, and conversely, after the flange portion 14 is positioned, the position direction of the positioning parallel surface of the positioning groove 11 can also be known, which facilitates the connection between the positioning groove 11 and the counterpart to complete the positioning function. This arrangement provides a double-edgewise positioning in which the forces of the fitting act directly on the cylinder, i.e. on the cylindrical portion of the positioning groove 11, without turning.

As shown in fig. 2, the adjusting cylinder 12 is a cylinder, and the length of the adjusting cylinder 12 can be adjusted to adjust the insertion depth of the positioning slot 11, so as to achieve product diversity, the adjusting cylinder 12 faces the positioning slot 11, and an adjusting notch 121 is formed in one side of the positioning arc-shaped surface, and there are two positioning arc-shaped surfaces, so that the number of the adjusting notches 121 is two, in fig. 2, the adjusting cylinder 12 is located in the positioning slot 11, two adjusting notches 121 are formed in the place where the positioning arc-shaped surfaces are connected, and the adjusting notches 121 are small flat squares on the cylinder, so that the position relationship between the positioning slot 11 and a plate hole can be adjusted during assembly, and when the fixing pin is assembled, the flat square structures of the positioning slot 11 are all sunk into the plate hole to be adjusted and positioned.

secondly, the positioning groove is additionally arranged at the tail part of the plate, the plate can be guided to be arranged in a fixed position through the positioning groove when being arranged in an inner hole of the plate, the left and right directions can be universal when the two grooves are assembled, and the difficulty in assembly positioning identification is reduced;

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model.

Claims

1. The efficient fixing pin with the flat groove is used for fixing assembled plate holes and is characterized by comprising a positioning groove, an adjusting cylinder, a hexagonal column and a flange part, wherein the positioning groove, the adjusting cylinder, the hexagonal column and the flange part are sequentially connected;

the positioning groove is a sheet body and comprises two positioning parallel surfaces corresponding to each other and two positioning arc-shaped surfaces corresponding to each other, and the two positioning arc-shaped surfaces are concentric;

and one side of the adjusting cylinder, which faces the positioning arc-shaped surface of the positioning groove, is provided with an adjusting notch, and the adjusting notch is a small flat square on the cylinder and is used for adjusting the position during assembly.

2. A high efficiency, flat slotted fixation pin as recited in claim 1, wherein the hexagonal post is a regular hexagon having two parallel sides corresponding to each other and two parallel positioning surfaces of the positioning slot that are parallel to each other for determining the angular position of the hexagonal post.

3. The high efficiency, slotted anchor pin according to claim 2, wherein the flange portion includes two mutually corresponding flange portion parallel surfaces and two mutually corresponding flange portion arcuate surfaces, the two flange portion parallel surfaces of the flange portion and the two positioning parallel surfaces of the positioning slot being parallel for determining the angular position of the positioning slot.

4. A high efficiency, flat slotted tumbler pin according to claim 3, wherein the end face of the detent slot is formed with a cross-shaped recess to prevent rotation of the tumbler pin during manufacturing.