Brake fender pressing rivet structure

Abstract

The utility model discloses a brake fender press riveting structure, which belongs to the field of fender press riveting and comprises an integrated press fitting component and a riveting component, the press fitting component comprises a guide rod and a blade fixing plate, the top end of the guide rod is fixedly connected with a press, and the blade fixing plate is fixedly connected with the circumferential side of the bottom of the guide rod through a blade base plate. A plurality of blades are uniformly arranged at the bottom end of the blade fixing plate in a circumferential array; the riveting assembly comprises a positioning rod connected with the bottom end face side of the guide rod and a plurality of riveting tool bits evenly fixed to the bottom end of the positioning rod in a circumferential array mode, and penetrating-in and penetrating-out holes are formed in the positions, corresponding to the riveting blades, of the positioning rod. A limiting boss is integrally formed at the top end of the guide rod, and the guide rod between the limiting boss and the blade base plate is sleeved with a material returning spring. By the adoption of the brake fender pressing rivet structure, integration of the press fitting function, the riveting function and the material returning function is achieved through the material returning spring, and the mechanism complexity and the production cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fender riveting technology field especially relates to a brake fender riveting structure. BACKGROUND

[0002] Fenders (also known as fenders or mud guards) are body parts installed above the front and rear wheels of vehicles, and the main function is to prevent flying mud, stones, water and other debris during driving from splashing onto the vehicle body or other parts, protecting the vehicle and pedestrians.

[0003] In order to ensure that the fender will not fall off in long-term harsh conditions, the fender is riveted on the steering knuckle. Although this design can enhance the stability of the fender and resist the impact and vibration of the vehicle in complex road conditions and extreme environments, the tool bit of the riveting tool may be embedded in the steering knuckle during the riveting process, which may cause the tool bit to be stuck or damaged, affecting production efficiency and product quality. SUMMARY

[0004] The utility model aims at providing a brake fender riveting structure to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a brake fender riveting structure, which comprises an integrated pressing assembly and a riveting assembly, the pressing assembly comprises a guide rod fixedly connected with the top end of the pressing machine, a blade fixed plate fixedly connected with the bottom circumferential side of the guide rod through a blade pad, and a plurality of blades are uniformly arranged in a circumferential array at the bottom end of the blade fixed plate.

[0006] The riveting assembly comprises a positioning rod connected with the bottom end surface side of the guide rod and a plurality of riveting tool bits fixedly arranged in a circumferential array at the bottom end of the positioning rod, and a through hole is formed at the position corresponding to the riveting blade on the positioning rod.

[0007] The top end of the guide rod is integrally formed with a limiting boss, and a material return spring is sleeved on the guide rod between the limiting boss and the blade pad.

[0008] Preferably, the top end of the guide rod is also integrally formed with a positioning boss for connecting the pressing machine, and the positioning boss and the limiting boss are arranged in sequence from top to bottom along the guide rod.

[0009] Preferably, the guide rod and the positioning rod are screw-connected, and the positioning rod and the riveting tool bit are bolt-connected.

[0010] Preferably, the bottom end of the blade is provided with a chamfer for easy insertion into the positioning groove on the fender.

[0011] Therefore, the utility model adopts the above-mentioned brake fender riveting structure, which has the beneficial effects of:

[0012] 1. Integrated press-fit assembly and rivet assembly: This design integrates the press-fit and rivet functions into one overall structure, reducing assembly steps and improving production efficiency. At the same time, the integrated design makes the entire device more compact, saving space;

[0013] 2. High-precision positioning and stability: (1) Threaded connection between guide rod and positioning rod: The threaded connection ensures precise positioning between the guide rod and the positioning rod, ensuring the accuracy and stability of the blade and rivet head during operation;

[0014] (2) Design of positioning boss and limiting boss: The positioning boss is used to connect the press, while the limiting boss is used to limit the movement range of the guide rod, ensuring safety and reliability during the entire riveting process;

[0015] 3. Efficient material withdrawal mechanism: After riveting is completed, the material withdrawal spring can quickly withdraw the blade and rivet head from the fender, preventing the tool from being stuck or damaged, improving production efficiency, and prolonging the service life of the tool;

[0016] 4. Easy to install and maintain: (1) Rivet head with bolt connection: The rivet head is fixed on the positioning rod by bolts, which is easy to disassemble and replace, facilitating daily maintenance and repair;

[0017] (2) Blade with chamfered end: The chamfered end of the blade makes it easier to insert into the positioning groove on the fender, simplifying the installation process and reducing the difficulty of operation;

[0018] 5. Circular array of evenly distributed blades and rivet heads: This uniform distribution ensures that the connection points between the fender and the steering knuckle are evenly stressed, avoiding local stress concentration and improving riveting quality, enhancing the stability and durability of the fender;

[0019] In summary, the brake fender riveting structure of the present application optimizes various aspects such as integrated design, high-precision positioning, efficient material withdrawal mechanism, easy installation and maintenance, and improved product quality, significantly improving the installation efficiency and reliability of the fender, especially suitable for use in complex working conditions, ensuring the safety and aesthetics of the vehicle.

[0020] The technical solutions of the present application will be further described in detail below with the aid of drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 The outer shape of the brake fender riveting structure of the present application is shown in the figure;

[0022] Fig. 2 The axial sectional view of the brake fender riveting structure of the present application is shown in the figure;

[0023] Fig. 3 The utility model discloses knuckle and fender assembly drawing.

[0024] Reference signs

[0025] 1, positioning boss;2, guide rod;3, limit boss;4, material return spring;5, blade pad;6, blade fixed plate;7, positioning rod;8, riveting cutter head;9, blade;10, knuckle;11, fender;12, positioning groove. DETAILED DESCRIPTION

[0026] In the description of the utility model, it needs to explain that the orientation or position relation that the terms "upper", "lower", "inner", "outer" and the like indicate is based on the orientation or position relation shown in the drawing, or is the orientation or position relation that the utility model product usually places when using, just is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply that the device or element that the indicated must have a particular orientation, constructs and operates with a particular orientation, therefore can not be understood as the limitation to the utility model. In the description of the utility model, it also needs to explain that, unless another explicit provision and limitation, the terms "arrangement", "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements inside. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] The embodiment of the utility model is described in detail below in conjunction with the drawings.

[0028] As Figs. 1-3 As shown in a kind of brake fender riveting structure, including integrated press-fit assembly and riveting assembly, press-fit assembly includes the guide rod 2 of top end with press machine fixed connection, the blade fixed plate 6 that is fixedly connected with the bottom circumferential side of guide rod 2 through blade pad 5, the bottom end of blade fixed plate 6 is uniformly arranged with multiple blades 9 in circumferential array;Riveting assembly includes the positioning rod 7 that is connected with the bottom end surface side of guide rod 2 and the multiple riveting cutter heads 8 that are uniformly fixed to the bottom end of positioning rod 7 in circumferential array, the position of positioning rod 7 and corresponding riveting blade 9 is equipped with through-in and through-out hole, for guiding riveting blade 9 and protecting riveting blade 9, prevent blade 9 from running position and the breakage of blade 9;The top end of guide rod 2 is integrally formed with limit boss 3, limit boss 3 is sleeved with material return spring 4 on guide rod 2 between limit boss 3 and blade pad 5, limit boss 3 is used to avoid guide rod 2 from overshoot under the action of press machine.

[0029] The top end of the guide rod 2 is integrally formed with a positioning boss 1 for connecting the press.

[0030] The guide rod 2 is threadedly connected with a positioning rod 7, and the positioning rod 7 is boltedly connected with a riveting cutter head 8.

[0031] The bottom end of the cutter blade 9 is provided with a chamfer for facilitating insertion into a positioning groove 12 on the fender 11.

[0032] Working process: first step, preparation: the top end of the guide rod 2 is fixed on the press through the positioning boss 1, and the material ejection spring 4 is in a natural state when the press is not started, at this time, the bottom end of the riveting cutter head 8 is lower than the bottom end of the riveting cutter head 8;

[0033] Second step, product positioning: placing the fender 11 to the predetermined position;

[0034] Third step, starting the press, the press pushes the guide rod 2 to move downward along the axial direction thereof,

[0035] Fourth step, press fitting: when the guide rod 2 falls until the riveting cutter blade 9 extends into the positioning groove 12 of the fender 11, the material pushing spring is compressed, and the fender 11 is press fitted onto the knuckle 10 by means of the deformation force of the material pushing spring;

[0036] Fifth step, riveting: after the press fitting is completed, the guide rod 2 continues to move downward, driving the positioning rod 7 to extend into the center hole of the knuckle 10 for positioning, and the riveting cutter head extrudes the fender 11, and the riveting is completed;

[0037] Sixth step, material ejection: when the press moves upward, the recovery force of the material ejection spring 4 separates the riveting cutter head from the fender 11, thereby realizing automatic material ejection.

[0038] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A brake mudguard press-fit structure, characterized in that: It includes an integrated pressing assembly and a riveting assembly. The pressing assembly includes a guide rod that is fixedly connected to the top of the press and a blade fixing plate that is fixedly connected to the bottom circumferential side of the guide rod via a blade pad. Multiple blades are evenly arranged in a circumferential array at the bottom of the blade fixing plate. The riveting assembly includes a positioning rod connected to the bottom end face of the guide rod and multiple riveting blades uniformly fixed in a circumferential array at the bottom end of the positioning rod. The positioning rod has through holes at the positions corresponding to the riveting blades. The top of the guide rod is integrally formed with a limiting boss, and a material ejection spring is sleeved on the guide rod between the limiting boss and the blade pad.

2. The brake mudguard press-fit structure according to claim 1, characterized in that: The top of the guide rod is also integrally formed with a positioning boss for connecting the press, and the positioning boss and the limiting boss are arranged sequentially from top to bottom along the guide rod.

3. The brake mudguard press-fit structure according to claim 1, characterized in that: The guide rod and the positioning rod are threaded together, and the positioning rod and the riveting head are bolted together.

4. The brake mudguard press-fit structure according to claim 1, characterized in that: The bottom of the blade is chamfered to facilitate insertion into the positioning groove on the mudguard.

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