Eight-point riveting mechanism for outer cylinder of magnetorheological fluid shock absorber

Abstract

The utility model discloses a magnetorheological fluid shock absorber outer cylinder eight-point riveting mechanism which comprises a fixing plate and riveting mechanism fixing seats, the riveting mechanism fixing seats are arranged at the lower end of the fixing plate, an upper cover plate is arranged at the lower ends of the riveting mechanism fixing seats, and a lower cover plate is arranged at the lower end of the upper cover plate. A plurality of eight-point synchronous riveting head cam discs are arranged on the inner wall of the upper cover plate and the inner wall of the lower cover plate, riveting head assemblies are arranged on the inner wall of the upper cover plate and the inner wall of the lower cover plate, the eight-point synchronous riveting head cam discs and the riveting head assemblies are fixedly connected through pressure sensors, and the eight-point synchronous riveting head cam discs and the pressure sensors are fixedly connected through inserting rods. The pressure sensor can rotate at the upper end of the eight-point synchronous riveting head cam disc through the inserting rod, the eight-point synchronous riveting head cam disc is synchronously controlled to push the riveting head assembly to conduct synchronous riveting, the pressure sensor in the riveting head assembly is used for detecting the force of the riveting head assembly for extruding parts, and therefore the riveting efficiency is improved, and the qualified rate is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field related to eight-point riveting machines for outer cylinders of shock absorbers, and particularly relates to an eight-point riveting mechanism for outer cylinders of magnetorheological fluid shock absorbers. Background Art

[0002] A magnetorheological fluid (MRF) shock absorber utilizes the properties of MR fluid to adjust its damping characteristics. The eight-point riveting mechanism on the outer tube is a crucial mechanism for assembling the MRF shock absorber, primarily used to connect and secure the various components of the shock absorber. However, conventional methods are unable to control the rivet depth, making it impossible to precisely rivet and secure the shock absorber components. This also reduces the accuracy and pass rate of shock absorber assembly. Utility Model Content

[0003] The purpose of the present utility model is to provide an eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber, so as to solve the problem in the above-mentioned background technology that the traditional method cannot control the riveting depth, resulting in the inability to accurately rivet and fix the shock absorber components, and also reducing the accuracy and qualification rate of the shock absorber assembly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber, comprising a fixing plate and a riveting mechanism fixing seat;

[0005] A riveting mechanism fixing seat is provided at the lower end of the fixing plate, and the riveting mechanism fixing seat;

[0006] An upper cover plate is provided at the lower end of the riveting mechanism fixing seat;

[0007] A lower cover plate is provided at the lower end of the upper cover plate, and a plurality of eight-point synchronous rivet head cam plates are provided on the inner walls of the upper cover plate and the lower cover plate, and a rivet head assembly is provided on the inner walls of the upper cover plate and the lower cover plate, and the plurality of eight-point synchronous rivet head cam plates and the rivet head assembly are connected and fixed through a pressure sensor.

[0008] Preferably, the plurality of eight-point synchronous rivet head cam discs are connected and fixed to the pressure sensor via an insert rod, and the pressure sensor can be rotated on the upper end of the eight-point synchronous rivet head cam disc via the insert rod.

[0009] Preferably, a plug is provided on the upper side of the inner wall of the upper cover plate, which is used to limit the insertion depth of the shock absorber outer cylinder. A connecting rod mechanism is inserted into the left end of the upper cover plate.

[0010] Preferably, a displacement detection sensor is provided on the right side of the lower end of the lower cover plate, and the displacement detection sensor is used to detect the running position of the eight-point synchronous rivet head cam disc. The displacement detection sensor is connected and fixed to the lower cover plate by screws.

[0011] Preferably, a height detection mechanism is provided on the upper end of the fixing plate, a movement sensor is provided on the upper side of the height detection mechanism, and the height detection mechanism is used to detect the insertion depth of the outer cylinder.

[0012] Preferably, an upper fixing plate is provided at the lower end of the motion sensor, a lower fixing plate is provided at the lower side of the upper fixing plate, and the upper fixing plate and the lower fixing plate are connected and fixed by a piston rod.

[0013] Preferably, the two piston rods are connected and fixed to the lower fixed plate via a fixing block, and the two piston rods can drive the lower fixed plate to move up and down.

[0014] Compared with the prior art, the utility model provides an eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber, which has the following beneficial effects:

[0015] The magnetorheological fluid shock absorber is sent to the riveting position through the automatic feeding mechanism. After the displacement sensor above the eight-point riveting mechanism detects that the position of the piston rod guide is within the set tolerance range, the external servo press pushes the external connecting rod mechanism of the eight-point riveting mechanism. The external connecting rod mechanism pushes the rivet head assembly for synchronous riveting through the eight-point synchronous rivet head cam disk inside the eight-point riveting mechanism to achieve consistent riveting depth and position. After the pressure sensor and displacement sensor inside the rivet head assembly detect that the pressure and displacement meet the requirements, the external servo press returns to its original position, and pushes the rivet head assembly for synchronous riveting by synchronously controlling the eight-point synchronous rivet head cam disk, thereby achieving accuracy in rivet head extrusion, thereby avoiding uneven pressure on the rivet head assembly, which may lead to loose riveting of shock absorber components, and detecting the force of the rivet head assembly extruding components through the pressure sensor inside the rivet head assembly, thereby increasing the efficiency and pass rate of riveting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the eight-point riveting mechanism for the outer cylinder of the magnetorheological fluid shock absorber of the present utility model.

[0017] Figure 2 This is a schematic diagram of the front-end planar structure of the eight-point riveting mechanism of the outer cylinder of the magnetorheological fluid shock absorber of the present invention.

[0018] Figure 3 This is a schematic diagram of the planed surface structure of the front end of the upper cover and the lower cover of the present invention.

[0019] Figure 4 This is a schematic diagram of the planed structure of the lower end of the eight-point riveting mechanism of the outer cylinder of the magnetorheological fluid shock absorber of the present utility model.

[0020] In the figure: 1. Piston rod; 2. Height detection mechanism; 3. Lower fixed plate; 4. Connecting rod mechanism; 5. Fixed plate; 6. Movement sensor; 7. Upper fixed plate; 8. Fixed block; 9. Insert rod; 10. Displacement detection sensor; 11. Lower cover; 12. Riveting mechanism fixing seat; 13. Upper cover; 14. Screw; 15. Pressure sensor; 16. Plug; 17. Rivet head assembly; 18. Eight-point synchronous rivet head cam plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1-4 The eight-point riveting mechanism for the outer cylinder of the magnetorheological fluid shock absorber shown includes a fixing plate 5 and a riveting mechanism fixing seat 12;

[0023] The lower end of the fixing plate 5 is provided with a riveting mechanism fixing seat 12, the riveting mechanism fixing seat 12;

[0024] An upper cover plate 13 is provided at the lower end of the riveting mechanism fixing seat 12;

[0025] A lower cover plate 11 is provided at the lower end of the upper cover plate 13, and a plurality of eight-point synchronous rivet head cam discs 18 are provided on the inner walls of the upper cover plate 13 and the lower cover plate 11. A rivet head assembly 17 is provided on the inner walls of the upper cover plate 13 and the lower cover plate 11. The plurality of eight-point synchronous rivet head cam discs 18 and the rivet head assembly 17 are connected and fixed through a pressure sensor 15.

[0026] The rivet head assembly 17 is pushed by multiple eight-point synchronous rivet head cam discs 18 to extrude the outer cylinder in the lower cover 11, so that the outer cylinder and the shock absorber components are riveted and fixed. While the multiple eight-point synchronous rivet head cam discs 18 push the rivet head assembly 17 to extrude the outer cylinder, the pressure sensor 15 is used to detect the force with which the eight-point synchronous rivet head cam discs 18 push the rivet head assembly 17 to extrude.

[0027] like Figure 3 and Figure 4 As shown, multiple eight-point synchronous rivet head cam plates 18 are connected and fixed to the pressure sensor 15 through the insertion rod 9, and the pressure sensor 15 can rotate on the upper end of the eight-point synchronous rivet head cam plate 18 through the insertion rod 9.

[0028] While the multiple eight-point synchronous rivet head cam discs 18 push the rivet head assembly 17 , the pressure sensor 15 rotates on the upper end of the multiple eight-point synchronous rivet head cam discs 18 through the insertion rod 9 to push the rivet head assembly 17 .

[0029] like Figure 2 and Figure 3 As shown, a plug 16 is provided on the upper side of the inner wall of the upper cover 13 to limit the insertion depth of the outer cylinder of the shock absorber. A connecting rod mechanism 4 is provided on the left end of the upper cover 13. A displacement detection sensor 10 is provided on the right side of the lower end of the lower cover 11. The displacement detection sensor 10 is used to detect the operating position of the eight-point synchronous rivet head cam disc 18. The displacement detection sensor 10 is connected and fixed to the lower cover 11 by screws 14.

[0030] The external servo press drives the external connecting rod mechanism 4 of the eight-point riveting mechanism, and the external connecting rod mechanism 4 drives the rivet head assembly 17 to perform synchronous riveting through the eight-point synchronous riveting head cam disc 18 inside the eight-point riveting mechanism.

[0031] like Figure 1 and Figure 2 As shown, a height detection mechanism 2 is provided at the upper end of the fixed plate 5, and a movement sensor 6 is provided on the upper side of the height detection mechanism 2. The height detection mechanism 2 is used to detect the insertion depth of the outer cylinder. An upper fixing plate 7 is provided at the lower end of the movement sensor 6, and a lower fixing plate 3 is provided on the lower side of the upper fixing plate 7. The upper fixing plate 7 and the lower fixing plate 3 are connected and fixed by a piston rod 1. The two piston rods 1 are connected and fixed to the lower fixing plate 3 by a fixing block 8. The two piston rods 1 can drive the lower fixing plate 3 to move up and down.

[0032] When the outer cylinder is inserted from the upper side of the lower cover plate 11 , the height detection mechanism 2 is actuated to detect the insertion depth of the outer cylinder, thereby placing the outer cylinder at the stamping and riveting position.

[0033] The working principle of the utility model is as follows: the magnetorheological fluid shock absorber is sent to the position to be riveted through the automatic feeding mechanism, and after the displacement sensor above the eight-point riveting mechanism detects that the position of the piston rod 1 guide is within the set tolerance range, the external servo press pushes the external connecting rod mechanism 4 of the eight-point riveting mechanism, and the external connecting rod mechanism 4 pushes the rivet head assembly 17 for synchronous riveting through the eight-point synchronous rivet head cam disk 18 inside the eight-point riveting mechanism to achieve consistent riveting depth and position, and after the pressure sensor 15 and the displacement sensor inside the rivet head assembly 17 detect that the pressure and displacement meet the requirements, the external servo press returns to its original position, and pushes the rivet head assembly 17 for synchronous riveting by synchronously controlling the eight-point synchronous rivet head cam disk 18, thereby achieving accuracy in rivet head extrusion.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber, comprising a fixing plate (5) and a riveting mechanism fixing seat (12); A riveting mechanism fixing seat (12) is provided at the lower end of the fixing plate (5); An upper cover plate (13) is provided at the lower end of the riveting mechanism fixing seat (12); Its characteristics are: A lower cover plate (11) is provided at the lower end of the upper cover plate (13), a plurality of eight-point synchronous rivet head cam discs (18) are provided on the inner walls of the upper cover plate (13) and the lower cover plate (11), a rivet head assembly (17) is provided on the inner walls of the upper cover plate (13) and the lower cover plate (11), and the plurality of eight-point synchronous rivet head cam discs (18) and the rivet head assembly (17) are connected and fixed via a pressure sensor (15).

2. The eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber according to claim 1, characterized in that: The plurality of eight-point synchronous rivet head cam discs (18) are connected and fixed to the pressure sensor (15) via an insert rod (9), and the pressure sensor (15) can be rotated on the upper end of the eight-point synchronous rivet head cam disc (18) via the insert rod (9).

3. The eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber according to claim 1, characterized in that: A plug (16) is provided on the upper side of the inner wall of the upper cover plate (13) for limiting the insertion depth of the shock absorber outer cylinder. A connecting rod mechanism (4) is inserted at the left end of the upper cover plate (13).

4. The eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber according to claim 1, characterized in that: A displacement detection sensor (10) is provided on the right side of the lower end of the lower cover plate (11). The displacement detection sensor (10) is used to detect the operating position of the eight-point synchronous rivet head cam disc (18). The displacement detection sensor (10) is connected and fixed to the lower cover plate (11) via screws (14).

5. The eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber according to claim 1, characterized in that: The upper end of the fixed plate (5) is plugged with a height detection mechanism (2), and a movement sensor (6) is provided on the upper side of the height detection mechanism (2). The height detection mechanism (2) is used to detect the insertion depth of the outer cylinder.

6. The eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber according to claim 5, characterized in that: An upper fixing plate (7) is provided at the lower end of the movement sensor (6), a lower fixing plate (3) is provided on the lower side of the upper fixing plate (7), and the upper fixing plate (7) and the lower fixing plate (3) are connected and fixed via a piston rod (1).

7. The eight-point riveting mechanism for the outer cylinder of a magnetorheological fluid shock absorber according to claim 6, characterized in that: The two piston rods (1) are connected and fixed to the lower fixed plate (3) via a fixing block (8), and the two piston rods (1) can drive the lower fixed plate (3) to move up and down.

Images