Nut pressing and riveting device for CDC shock absorber

Abstract

The utility model belongs to the technical field of assembly of automobile parts, and discloses a nut press-riveting device for a CDC shock absorber, which is used for press-riveting a nut on a piston rod of the shock absorber, a connecting ring is fixed on the nut, the nut press-riveting device comprises a support component and a press-riveting component, the support component comprises a support plate, and the press-riveting component is fixed on the support plate. A station groove used for fixing a shock absorber is formed in the supporting plate, the pressing rivet assembly comprises a supporting frame, a bearing plate, a connecting plate, a pressing rivet driving piece, a pressing rivet inner ring and a pressing rivet outer ring, the supporting frame is fixed to one side of the supporting plate, the bearing plate is arranged on the supporting frame, and the pressing rivet driving piece and the pressing rivet inner ring are fixed to the upper side and the lower side of the bearing plate correspondingly. The pressing rivet outer ring is fixed on the connecting plate and connected with the pressing rivet inner ring in a sleeved mode, the pressing rivet driving piece is connected with the connecting plate to drive the pressing rivet outer ring to slide relative to the pressing rivet inner ring, and the inner diameter size of the pressing rivet outer ring is matched with the outer diameter size of the connecting ring.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly equipment, and particularly relates to a nut riveting device for a CDC shock absorber. Background Art

[0002] The CDC shock absorber is an advanced automobile suspension system that can adjust the damping force in real time according to road conditions and driving styles. During the assembly process of the shock absorber, a variety of gaskets such as buffer pads, upper valve sheets, piston sheets, and lower valve sheets need to be installed on the piston rod of the shock absorber. Subsequently, a nut is placed on the piston rod and tightened to fix the position of the gasket. Since the nut and the piston rod of the shock absorber are only connected by threads, the nut of the CDC shock absorber may become loose or even fall off from the piston rod of the shock absorber due to the vibration of the vehicle during actual use, posing a potential safety hazard to the vehicle. Therefore, it is necessary to ensure that the nut and the piston rod of the shock absorber do not become loose after being locked. The existing nut anti-loosening measures generally use screw glue to fix the nut and the piston rod of the shock absorber. However, this anti-loosening measure still has the problem of nut loosening after the CDC shock absorber has been used for a certain period of time. In view of this, the present utility model is proposed. Summary of the Utility Model

[0003] In order to solve the problem of nut loosening after the nut is tightened on the piston rod of the shock absorber, the present utility model provides a nut riveting device for a CDC shock absorber.

[0004] In order to solve the above technical problems, the present utility model provides a nut riveting device for a CDC shock absorber, which is used for riveting the nut on the piston rod of the shock absorber. A connecting ring is fixed on the nut. The nut riveting device includes a support assembly and a riveting assembly. The support assembly includes a support plate, and a working station groove for fixing the shock absorber is formed on the support plate. The riveting assembly includes a support frame, a bearing plate, a connecting plate, a riveting driving member, a riveting inner ring, and a riveting outer ring. The support frame is fixed on one side of the support plate, the bearing plate is arranged on the support frame, the riveting driving member and the riveting inner ring are respectively fixed on the upper and lower sides of the bearing plate, the riveting outer ring is fixed on the connecting plate and sleeved with the riveting inner ring, the riveting driving member is connected with the connecting plate to drive the riveting outer ring to slide relative to the riveting inner ring, and the inner diameter dimension of the riveting outer ring is adapted to the outer diameter dimension of the connecting ring.

[0005] In an embodiment of the present utility model, the inner diameter of the riveting outer ring gradually decreases from top to bottom, and the inner diameter of the bottom of the riveting outer ring is greater than the outer diameter of the connecting ring, and the inner diameter of the top of the riveting outer ring is less than the outer diameter of the connecting ring.

[0006] In an embodiment of the present utility model, an inclined riveting groove is provided on the inner wall of the outer riveting ring. The riveting groove is inclined outward from top to bottom. A limiting groove is provided on the side wall of the inner riveting ring. The riveting assembly further includes a riveting block. The riveting block passes through the limiting groove and is slidably connected to the riveting groove.

[0007] In an embodiment of the present utility model, a lower pressing head is connected to the inner riveting ring. An inner lower pressing chamfer is provided at the bottom inside of the lower pressing head. The bottom distance of the inner lower pressing chamfer is greater than the across-flat distance of the nut, and the top distance of the inner lower pressing chamfer is less than the across-flat distance of the nut.

[0008] In an embodiment of the present utility model, the connecting plate includes a first connecting plate and a second connecting plate located on the upper and lower sides of the bearing plate. The riveting assembly further includes guide rods arranged on both sides of the riveting driving member. The guide rods pass through the bearing plate, and the upper and lower ends of the guide rods are respectively connected to the first connecting plate and the second connecting plate. The outer riveting ring is fixed to the second connecting plate, and the riveting driving member is connected to the first connecting plate.

[0009] In an embodiment of the present utility model, the support assembly further includes a support column and a rotation driving member. A working station groove for placing a shock absorber is provided on the support plate. The support columns are arranged around the support plate to support the support plate. The rotation driving member is connected to the support plate to drive the support plate to rotate on the support columns.

[0010] In an embodiment of the present utility model, a rotating wheel is rotatably connected to the top end of the support column. The support plate contacts the rotating wheel. When the rotation driving member drives the support plate to rotate, the rotating wheel is driven to rotate on the support column.

[0011] In an embodiment of the present utility model, the support assembly further includes a fixing plate and a cam divider. The cam divider includes a fixed flange, a rotating flange, and an input shaft. The rotating flange is located outside the fixed flange. The fixed flange passes through the support plate and is connected to the fixing plate. The rotating flange is connected to the support plate. The rotation driving member is connected to the input shaft to drive the rotating flange to rotate.

[0012] In an embodiment of the present utility model, the nut riveting device further includes a detection assembly. The detection assembly includes a material incoming detection frame, a connecting frame, and an opposed photoelectric sensor. The material incoming detection frame is fixed to the fixing plate. The connecting frame is in an n shape and is arranged on the material incoming detection frame. The opposed photoelectric sensors are fixed to both sides of the n-shaped connecting frame to emit and receive laser light.

[0013] In an embodiment of the present utility model, the riveting assembly further includes a lifting driving member fixed on the support frame, the bearing plate is slidably connected to the support frame, and the lifting driving member is connected to the bearing plate to drive the bearing plate to slide along the support frame.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The support plate provides support for the CDC shock absorber, and the bearing plate provides support for the riveting driving member, so that the riveting driving member drives the connecting plate to drive the outer riveting ring to lift on the bearing plate. When the outer riveting ring lifts, the inner riveting ring provides a guiding function for the outer riveting ring to ensure the coaxiality between the outer riveting ring and the CDC shock absorber. By setting the inner diameter of the outer riveting ring to be adapted to the outer diameter of the connecting ring on the nut, the connecting ring can be tightly pressed inward when the outer riveting ring descends and the connecting ring can be clamped with the shock absorber piston rod, so as to achieve the purpose of preventing the nut from loosening and avoid safety accidents caused by the nut loosening during the use of the CDC shock absorber. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the embodiments of the present utility model, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0017] Figure 1 is a three-dimensional structural diagram of the nut riveting device provided by the embodiment of the present utility model;

[0018] Figure 2 is a partial three-dimensional structural diagram of the CDC shock absorber;

[0019] Figure 3 is a three-dimensional structural diagram of the riveting assembly in the nut riveting device provided by the embodiment of the present utility model;

[0020] Figure 4 is a sectional three-dimensional structural diagram of the riveting assembly in the nut riveting device provided by the embodiment of the present utility model;

[0021] Figure 5 is Figure 4 the enlarged view of part A in

[0022] Figure 6 is a partial exploded structural diagram of the riveting assembly in the nut riveting device provided by the embodiment of the present utility model;

[0023] Figure 7 is a partial exploded structural diagram of the support assembly in the nut riveting device provided by the embodiment of the present utility model;

[0024] Figure 8 This is a three-dimensional structural schematic diagram of the detection component in the nut riveting device provided by the embodiment of the present utility model.

[0025] Explanation of reference numerals

[0026] 1. Nut riveting device; 2. CDC shock absorber; 11. Support component; 12. Riveting component; 13. Detection component; 21. Shock absorber piston rod; 22. Nut; 111. Support plate; 112. Support column; 113. Rotary drive member; 114. Fixed plate; 115. Cam divider; 121. Support frame; 122. Carrier plate; 123. First connecting plate; 124. Second connecting plate; 125. Riveting drive member; 126. Riveting inner ring; 127. Riveting outer ring; 128. Guide rod; 129. Lifting drive member; 1261. Limit groove; 1262. Pressing head; 1271. Riveting groove; 1272. Riveting block; 131. Incoming material detection frame; 132. Connecting frame; 133. Through-beam photoelectric sensor; 221. Connecting ring; 1111. Station groove; 1151. Fixed flange; 1152. Rotating flange; 1153. Input shaft. Detailed implementation manners

[0027] The following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present utility model, and are not used to limit the present utility model.

[0028] Please refer to Figures 1-7 , Figure 1 which is a three-dimensional structural schematic diagram of the nut riveting device provided by the embodiment of the present utility model; Figure 2 which is a partial three-dimensional structural schematic diagram of the CDC shock absorber; Figure 3 which is a three-dimensional structural schematic diagram of the riveting component in the nut riveting device provided by the embodiment of the present utility model; Figure 4 which is a sectional three-dimensional structural schematic diagram of the riveting component in the nut riveting device provided by the embodiment of the present utility model; Figure 5 which is Figure 4 the enlarged view at A in Figure 6 which is a partial exploded structural schematic diagram of the riveting component in the nut riveting device provided by the embodiment of the present utility model; Figure 7It is a partial exploded structural schematic diagram of the support assembly in the nut riveting device provided by the embodiment of the present utility model. The nut riveting device 1 of the present utility model is used for riveting the nut 22 on the shock absorber piston rod 21. A connecting ring 221 is fixed on the nut 22. The nut riveting device 1 includes a support assembly 11 and a riveting assembly 12. The support assembly 11 includes a support plate 111. A working station groove 1111 for fixing the shock absorber is provided on the support plate 111. The riveting assembly 12 includes a support frame 121, a bearing plate 122, a connecting plate, a riveting driving member 125, a riveting inner ring 126 and a riveting outer ring 127. The support frame 121 is fixed on one side of the support plate 111. The bearing plate 122 is arranged on the support frame 121. The riveting driving member 125 and the riveting inner ring 126 are respectively fixed on the upper and lower sides of the bearing plate 122. The riveting outer ring 127 is fixed on the connecting plate and sleeved with the riveting inner ring 126. The riveting driving member 125 is connected with the connecting plate to drive the riveting outer ring 127 to slide relative to the riveting inner ring 126. The inner diameter size of the riveting outer ring 127 is adapted to the outer diameter size of the connecting ring 221.

[0029] By providing the working station groove 1111 on the support plate 111, it is convenient for the operator to place the CDC shock absorber 2 to be riveted into the working station groove 1111, so that the CDC shock absorber 2 is placed in the working station groove 1111 in a vertical state, and the nut 22 is located above the working station groove 1111. By arranging the riveting assembly 12 on one side of the support plate 111, the nut 22 on the working station groove 1111 can be riveted under the action of the riveting assembly 12, so as to rivet and fix the nut 22 with the shock absorber piston rod 21, and prevent the nut 22 from loosening on the shock absorber piston rod 21.

[0030] By fixing the support frame 121 on one side of the support plate 111 and arranging the bearing plate 122 on the support frame 121, the riveting driving member 125 is fixed on the bearing plate 122. The connecting plate is connected with the riveting driving member 125, and the riveting outer ring 127 and the riveting inner ring 126 are respectively fixed on the connecting plate and the bearing plate 122. When the riveting driving member 125 drives the connecting plate to move up and down, the riveting outer ring 127 moves relative to the riveting inner ring 126, and the riveting inner ring 126 provides a guiding wire for the movement of the riveting outer ring 127 to ensure the coaxiality between the riveting outer ring 127 and the CDC shock absorber 2. Since the inner diameter of the riveting outer ring 127 is adapted to the outer diameter of the connecting ring 221 on the nut 22, the connecting ring 221 can be tightly pressed inward and clamped with the shock absorber piston rod 21 when the riveting outer ring 127 moves downward, so as to achieve the purpose of preventing the nut 22 from loosening and avoid safety accidents caused by the loosening of the nut 22 when the CDC shock absorber 2 is in use.

[0031] In the above embodiments, the riveting driving member 125 includes any one of a cylinder, an electric cylinder, and a hydraulic cylinder, so that the riveting driving member 125 can drive the connecting plate to move up and down.

[0032] In an embodiment of the present invention, the inner diameter of the riveting outer ring 127 gradually decreases from top to bottom, and the inner diameter of the bottom of the riveting outer ring 127 is greater than the outer diameter of the connecting ring 221, and the inner diameter of the top of the riveting outer ring 127 is less than the outer diameter of the connecting outer ring.

[0033] By setting the inner diameter of the riveting outer ring 127 to gradually decrease from top to bottom, and making the bottom dimension of the inner diameter of the riveting outer ring 127 greater than the outer diameter of the connecting ring 221, and the top dimension of the inner diameter of the riveting outer ring 127 less than the outer diameter of the connecting ring 221, thus, when the riveting driving member 125 drives the connecting plate to descend, the riveting outer ring 127 can descend synchronously with the connecting plate, and the descended riveting outer ring 127 is sleeved on the shock absorber piston rod 21. Since the top dimension of the inner diameter of the riveting outer ring 127 is less than the outer diameter of the connecting ring 221, when the riveting driving member 125 drives the riveting outer ring 127 to continue to descend, the inside of the riveting outer ring 127 can squeeze the connecting ring 221, and the connecting ring 221 undergoes a rigid deformation of inward contraction, thereby realizing the riveting fixation of the nut 22 and preventing the nut 22 from loosening on the shock absorber piston rod 21. When the riveting outer ring 127 moves downward, through the socket connection between the riveting inner ring 126 and the riveting outer ring 127, the riveting inner ring 126 can provide a guiding effect for the lifting and lowering of the riveting outer ring 127 to ensure the coaxiality between the riveting outer ring 127 and the CDC shock absorber 2.

[0034] Please refer to Figures 3-6 In another embodiment of the present invention, an inclined riveting groove 1271 is formed on the inner wall of the riveting outer ring 127, the riveting groove 1271 is inclined outward from top to bottom, a limiting groove 1261 is formed on the side wall of the riveting inner ring 126, and the riveting assembly 12 further includes a riveting block 1272, and the riveting block 1272 passes through the limiting groove 1261 and is slidably connected to the riveting groove 1271.

[0035] By providing a riveting groove 1271 on the inner wall of the outer riveting ring 127 and a limiting groove 1261 on the side wall of the inner riveting ring 126, it is convenient for the riveting block 1272 to pass through the limiting groove 1261 from the inside of the inner riveting ring 126 and then connect with the riveting groove 1271. Since the inclination of the riveting groove 1271 is outward from top to bottom, when the riveting driving part 125 drives the outer riveting ring 127 to descend, the inclined riveting groove 1271 can squeeze the riveting block 1272 to move horizontally inward along the limiting groove 1261, so as to rivet the connecting ring 221 sleeved inside the outer riveting ring 127. That is, after being squeezed by the riveting groove 1271, the riveting block 1272 moves horizontally inward along the limiting groove 1261, so that the riveting block 1272 squeezes the connecting ring 221 to undergo rigid deformation, and the deformed connecting ring 221 is clamped on the shock absorber piston rod 21.

[0036] When the riveting driving part 125 drives the outer riveting ring 127 to ascend, the inclined riveting groove 1271 can pull the riveting block 1272 to move horizontally outward along the limiting groove 1261, so that after the riveting of the connecting ring 221 is completed, the riveting block 1272 can be driven to move horizontally outward. That is, after being squeezed by the riveting groove 1271, the riveting block 1272 moves horizontally outward along the limiting groove 1261, so as to facilitate the removal of the outer riveting ring 127 from the connecting ring 221, and it is convenient for the operator to take out the riveted CDC shock absorber 2 from the support plate 111.

[0037] In the above embodiment, at least two riveting grooves 1271 are arranged in an array along the inner wall of the outer riveting ring 127, and the number of the riveting blocks 1272 is equal to the number of the riveting grooves 1271. When the riveting driving part 125 drives the outer riveting ring 127 to rise and fall, at least two riveting blocks 1272 can rivet the connecting ring 221 from the circumferential position of the connecting ring 221, so as to strengthen the riveting effect on the connecting ring 221 and prevent the nut 22 from loosening from the shock absorber piston rod 21.

[0038] In the embodiment of the present utility model, a lower pressing head 1262 is connected to the inner riveting ring 126. A lower pressing chamfer is arranged inside the bottom of the lower pressing head 1262. The distance at the bottom of the lower pressing chamfer is greater than the opposite side distance of the nut 22, and the distance at the top of the lower pressing chamfer is less than the opposite side distance of the nut 22.

[0039] By connecting the lower pressing head 1262 with the riveting inner ring 126 and providing a lower pressing chamfer on the inner side of the bottom of the lower pressing head 1262, after the CDC shock absorber 2 is fixed on the support plate 111, the position of the bearing plate 122 can be adjusted to make the riveting inner ring 126 descend and drive the lower pressing head 1262 to descend until the lower pressing chamfer abuts against the nut 22. Since the bottom distance of the lower pressing chamfer is greater than the opposite side distance of the nut 22 and the top distance of the lower pressing chamfer is less than the opposite side distance of the nut 22, the lower pressing chamfer can abut against the opposite side of the nut 22, so that after the riveting driving part 125 drives the riveting outer ring 127 to descend, the riveting block 1272 has the same riveting position for the connecting ring 221 of each CDC shock absorber 2. At the same time, the position of the CDC shock absorber 2 can be prevented from changing under the abutting action of the lower pressing head 1262 and the nut 22 to ensure that the riveting block 1272 can accurately rivet the connecting ring 221.

[0040] In an embodiment of the present utility model, the connecting plate includes a first connecting plate 123 and a second connecting plate 124 located on the upper and lower sides of the bearing plate 122. The riveting assembly 12 further includes guide rods 128 arranged on both sides of the riveting driving part 125. The guide rods 128 pass through the bearing plate 122, and the upper and lower ends of the guide rods 128 are respectively connected to the first connecting plate 123 and the second connecting plate 124. The riveting outer ring 127 is fixed on the second connecting plate 124, and the riveting driving part 125 is connected to the first connecting plate 123.

[0041] By respectively arranging the first connecting plate 123 and the second connecting plate 124 on the upper and lower sides of the bearing plate 122 and connecting the guide rods 128 to the first connecting plate 123 and the second connecting plate after passing through the bearing plate 122, when the riveting driving part 125 is connected to the first connecting plate 123 and drives the first connecting plate 123 to move, the second connecting plate 124 can move synchronously with the first connecting plate 123 under the connection of the guide posts. At the same time, the connection between the bearing plate 122 and the guide rods 128 can provide guidance for the movement of the first connecting plate 123 and the second connecting plate 124 to ensure that both the first connecting plate 123 and the second connecting plate 124 move in the vertical direction.

[0042] By fixing the riveting outer ring 127 on the second connecting plate 124, it is convenient for the riveting outer ring 127 to move synchronously with the second connecting plate 124. Further, after the riveting outer ring 127 is sleeved on the CDC shock absorber 2, the riveting head moves along the limiting groove 1261 under the extrusion of the riveting groove 1271, and finally the connecting ring 221 undergoes rigid deformation under the extrusion of the riveting head on the connecting ring 221, thereby realizing the riveting effect on the connecting ring 221 and preventing the nut 22 from loosening on the shock absorber piston rod 21.

[0043] Please refer toFigure 7 , in an embodiment of the present utility model, the support assembly 11 further includes a support column 112 and a rotation driving member 113. A working station groove 1111 for placing the shock absorber is formed on the support plate 111. The support column 112 is disposed around the support plate 111 to support the support plate 111, and the rotation driving member 113 is connected to the support plate 111 to drive the support plate 111 to rotate on the support column 112.

[0044] By forming the working station groove 1111 for placing the CDC shock absorber 2 on the support plate 111, using the support column 112 to support the support plate 111, and using the rotation driving member 113 to drive the support plate 111 to rotate on the support column 112, when the operator performs the nut 22 press riveting operation on the CDC shock absorber 2, the rotation driving member 113 can be used to control the rotation of the support plate 111 to perform the loading and unloading operations of the CDC shock absorber 2. When the working station groove 1111 is at the loading station, the operator at the loading station can load the CDC shock absorber 2 into the working station groove 1111. By controlling the press riveting driving member 125 to drive the press riveting outer ring 127 to descend, the press riveting head can perform press riveting on the connecting ring 221. After the press riveting operation is completed, by controlling the press riveting driving member 125 to drive the press riveting outer ring 127 to ascend, it is convenient for the press riveting outer ring 127 to separate from the CDC shock absorber 2. Subsequently, by controlling the rotation driving member 113 to rotate the support plate 111, the CDC shock absorber 2 can be rotated to the unloading station, facilitating the operator at the unloading station to take out the CDC shock absorber 2 on the working station groove 1111, thereby realizing the nut 22 press riveting assembly line operation for the CDC shock absorber 2 and improving the press riveting efficiency of the nut 22.

[0045] In the above embodiment, at least two working station grooves 1111 are arranged in an array along the circumferential direction of the support plate 111, so as to facilitate placing at least two CDC shock absorbers 2 on at least two working station grooves 1111, and combining the rotation driving of the support plate 111 by the rotation driving member 113 to realize the nut 22 press riveting assembly line operation and improve the press riveting efficiency of the nut 22.

[0046] In the above embodiment, the rotation driving member 113 includes any one of a servo motor, a synchronous motor, and a stepping motor, so that the rotation driving member 113 drives the support plate 111 to rotate on the support column 112.

[0047] In an embodiment of the present utility model, a rotating wheel is rotatably connected to the top end of the support column 112. The support plate 111 contacts the rotating wheel, and when the rotation driving member 113 drives the support plate 111 to rotate, the rotating wheel is driven to rotate on the support column 112.

[0048] By arranging a rotating wheel at the top of the supporting column 112, the supporting plate 111 is in contact with the rotating wheel on the supporting column 112. Then, when the rotating driving member 113 drives the supporting plate 111 to rotate, the supporting plate 111 can rotate under the contact of the rotating wheel, so as to reduce the sliding friction between the supporting plate 111 and the supporting column 112 and improve the service life of the supporting plate 111.

[0049] In an embodiment of the present invention, the supporting assembly 11 further includes a fixing plate 114 and a cam divider 115. The cam divider 115 includes a fixed flange 1151, a rotating flange 1152 and an input shaft 1153. The rotating flange 1152 is located outside the fixed flange 1151. The fixed flange 1151 passes through the supporting plate 111 and is connected to the fixing plate 114. The rotating flange 1152 is connected to the supporting plate 111. The rotating driving member 113 is connected to the input shaft 1153 to drive the rotating flange 1152 to rotate.

[0050] By connecting the fixed flange 1151 on the cam divider 115 to the fixing plate 114, connecting the rotating flange 1152 to the supporting plate 111, and connecting the rotating driving member 113 to the input shaft 1153 of the cam divider 115, the rotating flange 1152 can be driven to rotate by the rotating driving member 113. At the same time, the rotating flange 1152 drives the supporting plate 111 to rotate, so as to realize the position adjustment of the CDC shock absorber 2 placed on the working station groove 1111, which is convenient for the operator to load and unload the CDC shock absorber 2 at a fixed position and reduces the labor intensity of the operator.

[0051] Please refer to Figure 8 , Figure 8 FIG. is a three-dimensional structural schematic diagram of the detection assembly in the nut riveting device provided by the embodiment of the present invention. In an embodiment of the present invention, the nut riveting device 1 further includes a detection assembly 13. The detection assembly 13 includes a feeding detection frame 131, a connecting frame 132 and an opposed photoelectric sensor 133. The feeding detection frame 131 is fixed on the fixing plate 114. The connecting frame 132 is in an n shape and is arranged on the feeding detection frame 131. The opposed photoelectric sensor 133 is fixed on both sides of the n-shaped connecting frame 132 to emit and receive laser light.

[0052] It is fixed on the fixed plate 114 through the incoming material detection frame 131, and the n-shaped connecting frame 132 is arranged on the incoming material detection frame 131, so as to facilitate the fixing of the opposed photoelectric sensors 133 on both sides of the connecting frame 132. Further, under the action of the opposed photoelectric sensors 133, the incoming material detection of the CDC shock absorber 2 is realized. That is, when the CDC shock absorber 2 is placed on the station slot 1111, the rotation driving member 113 drives the support plate 111 to rotate and drives the CDC shock absorber 2 to pass through the position of the opposed photoelectric sensors 133. The laser beam emitted by the opposed photoelectric sensors 133 is cut off by the CDC shock absorber 2. Further, the opposed photoelectric sensors 133 can detect that the CDC shock absorber 2 is placed on the current station slot 1111. At this time, the riveting assembly 12 can be controlled to perform the riveting operation on the nut 22 on the CDC shock absorber 2. On the contrary, when the CDC shock absorber 2 is not placed on the station slot 1111, after the rotation driving member 113 drives the support plate 111 to rotate, the laser beam emitted by the opposed photoelectric sensors 133 will not be cut off. Further, the opposed photoelectric sensors 133 can detect that the CDC shock absorber 2 is not placed on the current station slot 1111. At this time, the riveting assembly 12 can be prevented from running idly.

[0053] In an embodiment of the present utility model, the riveting assembly 12 further includes a lifting driving member 129 fixed on the support frame 121. The bearing plate 122 is slidably connected to the support frame 121. The lifting driving member 129 is connected to the bearing plate 122 to drive the bearing plate 122 to slide along the support frame 121.

[0054] By fixing the lifting driving member 129 on the support frame 121 and making the bearing plate 122 slidably connected to the support frame 121, the lifting driving member 129 is connected to the bearing plate 122, so that the bearing plate 122 can be driven by the lifting driving member 129 to move up and down along the support frame 121, so as to realize the height adjustment of the riveting inner ring 126 and the riveting outer ring 127. When the lifting driving member 129 drives the bearing plate 122 to rise, the rotatable support plate 111 can drive the CDC shock absorber 2 to the riveting station. At this time, by driving the bearing plate 122 to descend by the lifting driving member 129, the lower pressing head 1262 on the riveting inner ring 126 can be abutted and fixed against the nut 22 on the CDC shock absorber 2. Then, by driving the riveting outer ring 127 to descend by the riveting driving member 125, the riveting head can be horizontally displaced along the limiting groove 1261 under the extrusion of the riveting groove 1271, so that the connecting ring 221 is extruded and deformed by the riveting head, and then the riveting effect on the connecting ring 221 is realized. When the riveting operation is completed, the riveting outer ring 127 is driven to rise by the riveting driving member 125, so that the riveting head is separated from the connecting ring 221. Then, by driving the bearing plate 122 to rise by the lifting driving member 129, the lower riveting pressing head 1262 can be separated from the opposite side of the nut 22. Furthermore, the support plate 111 can be driven to rotate by the rotation driving member 113 and drive the CDC shock absorber 2 to the next station, realizing the automatic riveting operation of the CDC shock absorber 2 and improving the operation efficiency.

[0055] In the above embodiment, the lifting driving member 129 includes any one of an air cylinder, an electric cylinder, and a hydraulic cylinder, so that the lifting driving member 129 drives the bearing plate 122 to move up and down along the support frame 121.

[0056] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0057] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited thereto. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods. However, these simple modifications and combinations should also be regarded as the content disclosed by the present utility model and fall within the protection scope of the present utility model.

[0058] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A nut riveting device for a CDC shock absorber, used for riveting a nut on a shock absorber piston rod, wherein a connecting ring is fixed on the nut, and characterized in that: The nut riveting device includes a supporting component and a riveting component, the supporting component includes a supporting plate, the supporting plate is provided with a work station slot for fixing a shock absorber, the riveting component support frame, a bearing plate, a connecting plate, a riveting driving component, a riveting inner ring and a riveting outer ring, the supporting frame is fixed to one side of the supporting plate, the bearing plate is arranged on the supporting frame, the riveting driving component and the riveting inner ring are respectively fixed to the upper and lower sides of the bearing plate, the riveting outer ring is fixed to the connecting plate and sleeved with the riveting inner ring, the riveting driving component is connected to the connecting plate to drive the riveting outer ring to slide relative to the riveting inner ring, and the inner diameter size of the riveting outer ring is adapted to the outer diameter size of the connecting ring.

2. The nut riveting device for CDC shock absorber according to claim 1, characterized in that: The inner diameter of the press-riveted outer ring gradually decreases from top to bottom, and the bottom inner diameter of the press-riveted outer ring is larger than the outer diameter of the connecting ring, and the top inner diameter of the press-riveted outer ring is smaller than the outer diameter of the connecting outer ring.

3. The nut riveting device for CDC shock absorber according to claim 1, characterized in that: The inner wall of the riveted outer ring is provided with an inclined riveting groove, which is inclined outward from top to bottom. The side wall of the riveted inner ring is provided with a limiting groove. The riveting assembly also includes a riveting block, which passes through the limiting groove and is slidably connected to the riveting groove.

4. The nut riveting device for CDC shock absorber according to claim 1, characterized in that: A pressing head is connected to the riveting inner ring, and a pressing chamfer is provided on the inner side of the bottom of the pressing head. The bottom distance of the pressing chamfer is greater than the opposite side distance of the nut, and the top distance of the pressing chamfer is less than the opposite side distance of the nut.

5. The nut riveting device for CDC shock absorber according to claim 1, characterized in that: The connecting plate includes a first connecting plate and a second connecting plate located on the upper and lower sides of the supporting plate, and the riveting assembly also includes a guide rod arranged on both sides of the riveting driving member, the guide rod passes through the supporting plate, and the upper and lower ends of the guide rod are respectively connected to the first connecting plate and the second connecting plate, the riveting outer ring is fixed on the second connecting plate, and the riveting driving member is connected to the first connecting plate.

6. The nut riveting device for CDC shock absorber according to claim 1, characterized in that: The support assembly also includes a support column and a rotating drive member. The support plate is provided with a work station slot for placing the shock absorber. The support columns are arranged around the support plate to support the support plate. The rotating drive member is connected to the support plate to drive the support plate to rotate on the support columns.

7. The nut riveting device for CDC shock absorber according to claim 6, characterized in that: The top end of the support column is rotatably connected with a rotating wheel, the support plate is in contact with the rotating wheel, and when the rotating driving member drives the support plate to rotate, the rotating wheel is driven to rotate on the support column.

8. The nut riveting device for CDC shock absorber according to claim 6, characterized in that: The support assembly also includes a fixed plate and a cam divider, the cam divider includes a fixed flange, a rotating flange and an input shaft, the rotating flange is located outside the fixed flange, the fixed flange passes through the support plate and is connected to the fixed plate, the rotating flange is connected to the support plate, and the rotating drive member is connected to the input shaft to drive the rotating flange to rotate.

9. The nut riveting device for CDC shock absorber according to claim 8, characterized in that: The nut riveting device also includes a detection component, which includes an incoming material detection frame, a connecting frame and a through-beam photoelectric sensor. The incoming material detection frame is fixed on the fixed plate, the connecting frame is in an N shape and is arranged on the incoming material detection frame, and the through-beam photoelectric sensor is fixed on both sides of the N-shaped connecting frame to emit and receive lasers.

10. The nut riveting device for CDC shock absorber according to any one of claims 1 to 9, characterized in that: The riveting assembly also includes a lifting drive member fixed on the support frame, the bearing plate is slidably connected to the support frame, and the lifting drive member is connected to the bearing plate to drive the bearing plate to slide along the support frame.

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