CN111702084A

CN111702084A - Wheel nut assembly pressing structure

Info

Publication number: CN111702084A
Application number: CN202010580982.1A
Authority: CN
Inventors: 李伟; 王�华; 魏涛; 王阳; 夏鑫
Original assignee: Hubei Haokai Auto Parts Co ltd
Current assignee: Hubei Haokai Auto Parts Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-09-25

Abstract

The invention provides a wheel nut assembly pressing structure, relates to the field of process technology improvement, and solves the problems that the existing wheel nut assembly pressing structure has more production processes, so that the production cycle of a product is longer, and a mold needs to be frequently replaced, so that the working efficiency is lower; and the problems of low lamination quality, general product performance, inconvenient turnover and poor reliability are solved. A wheel nut assembly pressing structure comprises a lower die; the lower die is provided with a nut, is coaxial with the upper die and jointly forms a press-fit riveting device. The gasket is reversely buckled in the annular groove of the lower die, the nut is placed, the dustproof cap is placed in the riveted step formed by turning the nut, the gasket, the nut and the dustproof cap are in a sandwich type overlapped state, when the upper die is pressed downwards, the nut is simultaneously pressed with the gasket and riveted with the dustproof cap under the pressure action of the upper die and the lower die, and therefore the pressing and riveting processes are combined into one process.

Description

Wheel nut assembly pressing structure

Technical Field

The invention belongs to the field of process technology improvement, and particularly relates to a wheel nut assembly pressing structure.

Background

The wheel bolt and the wheel nut of the automobile are usually exposed in the atmosphere, so that the joint of the wheel bolt and the wheel nut is easy to enter ash and water, the service life of the wheel bolt and the wheel nut is reduced, and the reliability of the wheel bolt and the wheel nut is further reduced; simultaneously, the wheel nut screws up the back with the wheel bolt cooperation, and sharp-pointed part on the wheel bolt will bulge outside car spiral shell nut, and this makes the wheel bolt cause the injury to operating personnel more easily.

Based on the above, the existing wheel nut assembly pressing structure for the wheel still has the following defects:

one is that the existing wheel nut assembly pressing structure has more production processes, so that the production period of a product is longer, and a mold needs to be frequently replaced, so that the working efficiency is lower; and the pressing quality is low, the product performance is general, the turnover is inconvenient, and the reliability is poor.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a wheel nut assembly pressing structure is provided to achieve a more practical purpose.

Disclosure of Invention

In order to solve the technical problems, the invention provides a wheel nut assembly pressing structure, which aims to solve the problems that the existing wheel nut assembly pressing structure has more production processes, so that the production period of a product is longer, and a mold needs to be frequently replaced, so that the working efficiency is lower; and the problems of low lamination quality, general product performance, inconvenient turnover and poor reliability are solved.

The invention relates to a wheel nut assembly pressing structure, which is achieved by the following specific technical means:

a wheel nut assembly pressing structure comprises a lower die; the nut is placed on the lower die, the lower die is coaxial with the upper die, and the lower die and the upper die jointly form a press-fit riveting device.

Furthermore, the lower die comprises an annular groove and a boss, a circle of annular groove is formed in the middle of the lower die, the boss is welded at the central part of the lower die, and the boss is of a round table structure.

Furthermore, the nut comprises a pressing ring and a gasket, the tail end face of the nut is provided with a circle of pressing ring through a lathe, the gasket is reversely buckled in the annular groove, and when the nut is pressed downwards, the outer wall of the pressing ring and the inner wall of the gasket are in a pressing state.

Further, the nut still includes riveting step, dustproof cap and riveting circle, the nut head end has round riveting step through lathe car, and there is the round riveting circle dustproof cap bottom through lathe car, and the dustproof cap is placed in the riveting step.

Further, go up the mould and include the inside groove and press the mouth, go up mould bottom inside and seted up the inside groove, and the inside groove bottom is opened and is pressed the mouth.

Compared with the prior art, the invention has the following beneficial effects:

improved last mould and lower mould, can realize riveting more reliable, the effect that improves production efficiency through improving, specifically as follows: firstly, the structure adopts a method of simultaneously pressing an upper die and a lower die to replace the original special die sequential pressing structure, a gasket is reversely buckled in an annular groove of the lower die, then a nut is placed, then a dustproof cap is placed in a riveting step which is turned by the nut, the gasket, the nut and the dustproof cap are in a sandwich type superposition state, when the upper die is pressed downwards, the nut simultaneously completes the action of pressing the gasket and riveting the dustproof cap under the pressure action of the upper die and the lower die, and therefore the pressing and riveting processes are combined into one process to be completed. The improved riveting and pressing are firm and reliable, the processes are combined, the die changing times are reduced, the production period of the product is shortened, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic view of the full-section main structure of the invention.

Fig. 3 is a partially enlarged view of a portion a of fig. 2 according to the present invention.

Fig. 4 is a schematic view of the present invention at a part B of fig. 2.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a lower die; 101. an annular groove; 102. a boss; 2. a nut; 201. pressing and closing the ring; 202. riveting a step; 203. a gasket; 204. a dust cap; 205. riveting a ring; 3. an upper die; 301. an inner tank; 302. and (4) pressing the opening.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 4:

the invention provides a wheel nut assembly pressing structure, which comprises a lower die 1; the nut 2 is placed on the lower die 1, the lower die 1 is coaxial with the upper die 3, and the lower die 1 and the upper die 3 jointly form a press-fit riveting device.

Referring to fig. 2, the lower die 1 includes an annular groove 101 and a boss 102, a ring of annular groove 101 is formed in the middle of the lower die 1, the boss 102 is welded to the central portion of the lower die 1, and the boss 102 is in a circular truncated cone structure, so that the parts are fixed during pressing, and demolding is facilitated after pressing.

Referring to fig. 1 and 4, the nut 2 includes a pressing ring 201 and a washer 203, a circle of the pressing ring 201 is turned by a lathe on the tail end face of the nut 2, the washer 203 is reversely buckled in the annular groove 101, and when the nut 2 is pressed downwards, the outer wall of the pressing ring 201 and the inner wall of the washer 203 are in a pressing state, so that the pressing of the nut 2 and the washer 203 is realized.

Referring to fig. 2 and 3, the nut 2 further includes a riveting step 202, a dust cap 204 and a riveting ring 205, the head end of the nut 2 is lathed with a circle of riveting step 202 by a lathe, the bottom end of the dust cap 204 is lathed with a circle of riveting ring 205 by the lathe, and the dust cap 204 is placed in the riveting step 202, so that the riveting step 202 is pressed inwards to complete riveting with the dust cap 204.

Referring to fig. 2, the upper die 3 includes an inner groove 301 and a pressure opening 302, the inner groove 301 is formed in the bottom end of the upper die 3, and the pressure opening 302 is formed in the bottom end of the inner groove 301, so that when the upper die 3 is pressed downward, the pressure opening 302 rivets the riveting step 202, and after riveting is completed, the upper die 3 continues to apply pressure to the nut 2, so that the nut 2 is pressed on the gasket 203.

The specific use mode and function of the embodiment are as follows:

when the nut riveting device is used, firstly, the gasket 203 is inversely buckled in the annular groove 101 of the lower die 1, then the nut 2 is placed on the inversely buckled gasket 203, then the dustproof cap 204 is placed in the riveting step 202 which is formed by turning the nut 2, the three parts are in a sandwich type superposition state, when the upper die 3 is pressed downwards, the nut 2 is simultaneously pressed with the gasket 203 and riveted with the dustproof cap 204 under the pressure action of the upper die 3 and the lower die 1, and therefore the pressing and riveting processes are combined into one process.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a wheel nut assembly pressfitting structure which characterized in that: comprises a lower die (1); the nut (2) is placed on the lower die (1), the lower die (1) and the upper die (3) are coaxial, and the lower die (1) and the upper die (3) jointly form a pressing riveting device.

2. The wheel nut assembly press-fit structure according to claim 1, wherein: the lower die (1) comprises an annular groove (101) and a boss (102), a circle of annular groove (101) is formed in the middle of the lower die (1), the boss (102) is welded to the center of the lower die (1), and the boss (102) is of a circular truncated cone structure.

3. The wheel nut assembly press-fit structure according to claim 1, wherein: the nut (2) comprises a pressing ring (201) and a gasket (203), a circle of pressing ring (201) is arranged on the tail end face of the nut (2) through a lathe, the gasket (203) is reversely buckled in the annular groove (101), and when the nut (2) is pressed downwards, the outer wall of the pressing ring (201) and the inner wall of the gasket (203) are in a pressing state.

4. The wheel nut assembly press-fit structure according to claim 1, wherein: nut (2) still include riveting step (202), dustproof cap (204) and riveting circle (205), nut (2) head end has round riveting step (202) through lathe car, and there is round riveting circle (205) dustproof cap (204) bottom through lathe car, and dustproof cap (204) are placed in riveting step (202).

5. The wheel nut assembly press-fit structure according to claim 1, wherein: the upper die (3) comprises an inner groove (301) and a pressure opening (302), the inner groove (301) is formed in the bottom end of the upper die (3), and the pressure opening (302) is formed in the bottom end of the inner groove (301).