External valve multi-point riveting device

Abstract

The utility model discloses external valve multi -point riveting press device, including main part and riveting press mechanism, be provided with workstation on the main part, and the riveting press mechanism includes the fixing frame, be provided with the lifting frame of lifting on the fixing frame, the lifting frame lower side is fixed with buckling pressure subassembly, the buckling pressure subassembly includes the cylinder, the cylinder lower extreme has the insertion slot of external valve buckling place entry, be provided with a plurality of buckling inclined wedge in the cylinder, the buckling inclined wedge lower side sets up the buckling head of one -to -one correspondence, the buckling head with the buckling groove on external valve corresponds. Hydraulic oil acts on all the down pressure column through the communication ring groove simultaneously, ensures that a plurality of buckling inclined wedge synchronous down, through the inclined plane conduction to the buckling head, realizes all the convex point to the synchronous pressure of buckling groove and is pressed, makes the stress even, reduces the riveting intensity deviation of shell and external valve body, and the production of external valve is convenient.

Description

Technical Field

[0001] This utility model relates to the field of external valve riveting technology, and in particular to an external valve multi-point riveting device. Background Technology

[0002] With the rapid development of society and economy, external valves are a key component of automotive electronically controlled shock absorbers. During the assembly and production process, external valves require multi-point riveting. Existing riveting mechanisms are complex in structure and not conducive to the production of external valves. Utility Model Content

[0003] The purpose of this invention is to solve the problem mentioned in the background art that external valves require multi-point riveting during assembly and production, and that existing riveting mechanisms are complex and not conducive to the production of external valves.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An external valve multi-point riveting device includes a main body and a riveting mechanism. The main body is equipped with a worktable, and the riveting mechanism includes a fixed frame. A lifting frame is mounted on the fixed frame, and a clamping assembly is fixed to the lower side of the lifting frame. The clamping assembly includes a cylinder, and the lower end of the cylinder has a slot for the external valve clamping point to enter. Multiple clamping wedges are provided inside the cylinder, and a corresponding clamping head is provided on the lower side of each clamping wedge. The clamping head corresponds to the clamping groove on the external valve.

[0005] Preferably, a plurality of pressing posts are provided on the upper side of the cylinder, and each pressing post corresponds to a clamping wedge, with the lower side of the pressing post in contact with the clamping wedge.

[0006] Preferably, the lower side of the buckling wedge has a first inclined surface, and the upper side of the buckling head has a second inclined surface, with the first inclined surface in contact with the second inclined surface.

[0007] Preferably, the lifting frame includes a lifting rod, the lower end of which is fixed with a mounting plate, the cylinder is mounted on the lower surface of the mounting plate, the upper surface of the cylinder is in contact with the lower surface of the mounting plate, and an electric cylinder is mounted on the fixed frame, the extended end of which is fixed to the lifting frame.

[0008] Preferably, a connecting annular groove is provided on the lower side of the mounting plate, and an oil passage connecting the connecting annular groove is provided on the mounting plate.

[0009] Preferably, a limiting groove for radial movement of the pressing head is provided on the lower side of the cylinder.

[0010] Preferably, the cylinder is provided with a recovery assembly, the recovery assembly includes a support plate, the support plate is fixed to the lifting rod, a hydraulic cylinder is fixed on the support plate, the extended end of the hydraulic cylinder is connected to a recovery column, a recovery ring is fixed on the lower side of the recovery column, a connecting groove is opened on the clamping wedge, and the recovery ring is inserted into the connecting groove.

[0011] Preferably, the circular interior of the plurality of buckling wedges is provided with a plurality of elastic recovery plates, the lower side of the elastic recovery plates is in contact with the buckling head, and the buckling head is located outside the elastic recovery plates.

[0012] Preferably, the upper ends of the plurality of elastic restoring plates are fixed by a connecting plate, and the connecting plate is fixed to the cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Hydraulic oil acts simultaneously on all the pressing columns through the connecting annular groove, ensuring that multiple pressing wedges move down synchronously and are transmitted to the pressing head through the inclined surface, realizing the synchronous pressing of all protrusions against the pressing groove, which makes the force uniform, reduces the riveting strength deviation between the outer shell and the external valve body, and facilitates the production of external valves.

[0014] Multi-point synchronous riveting significantly reduces the processing time for a single part. The hydraulic cylinder drives the crimping wedge to move upward as a whole through the recovery ring, while the elastic recovery plate uses its own deformation restoring force to push the crimping head to radially reset, ensuring that the riveting assembly quickly returns to its initial state and reducing the process interval time.

[0015] The oil passage and connecting ring groove achieve sealed conduction, reducing the need for external pipeline layout, lowering the risk of oil leakage, and simplifying the overall structure of the equipment, making the equipment occupy less space. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the riveting mechanism of this utility model.

[0019] Figure 3 This is a schematic diagram of the lifting frame structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the oil passage of this utility model.

[0021] Figure 5 This is a schematic diagram of the slot and connecting ring groove of this utility model.

[0022] Figure 6 This is a cross-sectional view of the cylindrical body of this utility model.

[0023] Figure 7 This is a schematic diagram of the snap-fit ​​wedge of this utility model.

[0024] Figure 8 This is a schematic diagram of the recovery ring and connecting groove of this utility model.

[0025] Figure 9 This is a schematic diagram of the outer shell and the riveting part of this utility model.

[0026] Drawing number explanation: 1. Main body; 11. Workbench; 2. Riveting mechanism; 21. Fixing frame; 22. Lifting frame; 221. Lifting rod; 222. Mounting plate; 23. Clamping assembly; 231. Cylinder; 232. Slot; 233. Clamping wedge; 2331. Inclined surface one; 234. Slide groove; 235. Clamping head; 2351. Protrusion; 2352. Inclined surface two; 236. Lowering column; 237. Connecting ring groove; 238. Oil passage; 239. Limiting groove; 24. Electric cylinder; 25. Restoration assembly; 251. Support plate; 252. Hydraulic cylinder; 253. Restoration column; 254. Restoration ring; 255. Connecting groove; 256. Elastic restoration plate; 257. Connecting plate; 3. Outer shell; 4. Riveting point. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0029] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0030] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0031] Please see Figures 1-9 An external valve multi-point riveting device includes a main body 1 and a riveting mechanism 2. The main body 1 is provided with a worktable 11, which is used to fix the external valve. This is existing technology.

[0032] The riveting mechanism 2 includes a fixed frame 21, which is fixed to the main body 1. A lifting frame 22 is provided on the fixed frame 21, which can move up and down on the fixed frame 21. A crimping component 23 is fixed on the lower side of the lifting frame 22. The crimping component 23 descends and then performs multi-point riveting on the external valve. The crimping component 23 includes a cylinder 231. The lower end of the cylinder 231 has a slot 232 for the external valve crimping part to enter. Multiple crimping wedges 233 are provided inside the cylinder 231. A sliding groove 234 for the crimping wedges 233 to move up and down is opened inside the cylinder 231. A corresponding crimping head 235 is provided on the lower side of the crimping wedges 233. The crimping head 235 corresponds to the crimping groove on the external valve. The crimping head 235 has a protrusion 2351, which is used to press into the crimping groove.

[0033] Multiple pressing columns 236 are provided on the upper side of the cylinder 231. The pressing columns 236 are located on the upper side inside the cylinder 231. The pressing columns 236 correspond one-to-one with the clamping wedges 233. The lower side of the pressing column 236 contacts the clamping wedges 233. The clamping head 235 corresponds one-to-one with the clamping groove. The cylinder 231 is provided with a moving groove for the pressing columns 236 to move up and down.

[0034] The lower side of the snap-fit ​​wedge 233 has a first inclined surface 2331, and the upper side of the snap-fit ​​head 235 has a second inclined surface 2352. The first inclined surface 2331 contacts the second inclined surface 2352. When the snap-fit ​​wedge 233 moves downward, the first inclined surface 2331 and the second inclined surface 2352 cause the snap-fit ​​head 235 to move towards the center simultaneously, thereby completing the riveting of the outer shell 3 to the external valve body. Figure 9 As shown, this is the riveting point 4 between the outer casing 3 and the external valve.

[0035] The lifting frame 22 includes two lifting rods 221. The lifting rods 221 are slidably connected to the fixed frame 21. The lower end of the lifting rods 221 is fixed with a mounting plate 222, which connects the two lifting rods 221 together. The cylinder 231 is installed on the lower surface of the mounting plate 222 and is fixed to the mounting plate 222 with bolts. The upper surface of the cylinder 231 is in contact with the lower surface of the mounting plate 222. An electric cylinder 24 is installed on the fixed frame 21. The extended end of the electric cylinder 24 is fixed to the lifting frame 22, and the electric cylinder 24 controls the lifting of the lifting frame 22.

[0036] A connecting annular groove 237 is provided on the lower side of the mounting plate 222. The connecting annular groove 237 is located directly above the pressure column 236. The upper surface of the cylinder 231 contacts the lower surface of the mounting plate 222, sealing the connecting annular groove 237. The connecting annular groove 237 connects all the pressure columns 236. An oil passage 238 is provided on the mounting plate 222 to connect the connecting annular groove 237. The oil passage 238 is located on the rear side of the mounting plate 222. Hydraulic oil enters the connecting annular groove 237 through the oil passage 238, which causes the pressure columns 236 to move down simultaneously. The input of hydraulic oil into the oil passage 238 is a prior art technique.

[0037] A limiting groove 239 is provided on the lower side of the cylinder 231 to limit the radial movement of the pressing head 235. The limiting groove 239 is used to keep the pressing head 235 moving radially.

[0038] A recovery assembly 25 is provided on the cylinder 231. The recovery assembly 25 includes a support plate 251, which is fixed to the lifting rod 221. A hydraulic cylinder 252 is fixed on the support plate 251. The extended end of the hydraulic cylinder 252 is connected to a recovery column 253. The recovery column 253 is located inside the cylinder 231. A recovery ring 254 is fixed on the lower side of the recovery column 253. A connecting groove 255 is provided on the clamping wedge 233. The recovery ring 254 is inserted into the connecting groove 255 and is used to clamp the wedge 233 to rise.

[0039] Multiple elastic recovery plates 256 are arranged inside the circular enclosure formed by multiple clamping wedges 233. The lower side of the elastic recovery plates 256 contacts the clamping head 235, which is located outside the elastic recovery plates 256. The upper ends of the multiple elastic recovery plates 256 are fixed by a connecting plate 257, which is fixed to the cylinder 231. The elastic recovery plates 256 are used to reset the clamping head 235. The riveting mechanism 2 saves time and effort in riveting external valves.

[0040] In use, the external valve is fixed on the workbench 11, and then the electric cylinder 24 causes the lifting frame 22 to move down, and the cylinder 231 moves down together, so that the riveting part 4 enters the cylinder 231. After the lifting frame 22 stops, the hydraulic oil enters the connecting ring groove 237 through the oil passage 238, and then causes the pressing column 236 to move down at the same time. The pressing column 236 causes the clamping wedge 233 and the restoring column 253 to move down together. Through the first inclined surface 2331 and the second inclined surface 2352, the clamping head 235 moves towards the center at the same time, and the protrusion 2351 moves into the clamping groove, thereby completing the riveting of the outer shell 3 and the external valve body. During the process of the clamping head 235 moving towards the center, the lower side of the elastic restoring plate 256 deforms towards the center. The hydraulic oil supply stops. After riveting is completed, hydraulic cylinder 252 causes the restoring column 253 to move upward. The restoring column 253, through the restoring ring 254, causes the clamping wedge 233 to move upward. The clamping wedge 233 causes the lower pressing column 236 to move upward. The upward movement of the lower pressing column 236 causes the hydraulic oil to return. During the upward movement of the clamping wedge 233, the elastic restoring plate 256 returns to its original position, causing the clamping head 235 to move radially away from the center. Finally, electric cylinder 24 causes the lifting frame 22 and cylinder 231 to rise. The riveting structure is simple and facilitates production.

[0041] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. An external valve multi-point riveting device, characterized in that, include: Main body (1), on which a workbench (11) is provided; The riveting mechanism (2) includes a fixed frame (21), on which a lifting frame (22) is provided. A fastening assembly (23) is fixed on the lower side of the lifting frame (22). The fastening assembly (23) includes a cylinder (231). The lower end of the cylinder (231) has a slot (232) for the external valve to enter. Multiple fastening wedges (233) are provided inside the cylinder (231). A corresponding fastening head (235) is provided on the lower side of the fastening wedge (233). The fastening head (235) corresponds to the fastening groove on the external valve.

2. The external valve multi-point riveting device according to claim 1, characterized in that: The upper side of the cylinder (231) is provided with a plurality of pressing columns (236), and the pressing columns (236) correspond one-to-one with the clamping wedges (233). The lower side of the pressing column (236) is in contact with the clamping wedges (233).

3. The external valve multi-point riveting device according to claim 2, characterized in that: The lower side of the buckling wedge (233) has a first inclined surface (2331), and the upper side of the buckling head (235) has a second inclined surface (2352). The first inclined surface (2331) and the second inclined surface (2352) are in contact.

4. The external valve multi-point riveting device according to claim 3, characterized in that: The lifting frame (22) includes a lifting rod (221), the lower end of which is fixed with a mounting plate (222), the cylinder (231) is mounted on the lower surface of the mounting plate (222), the upper surface of the cylinder (231) is in contact with the lower surface of the mounting plate (222), and an electric cylinder (24) is mounted on the fixing frame (21), the extended end of which is fixed to the lifting frame (22).

5. The external valve multi-point riveting device according to claim 4, characterized in that: The mounting plate (222) has a connecting annular groove (237) on its lower side, and an oil passage (238) connecting the connecting annular groove (237) is provided on the mounting plate (222).

6. The external valve multi-point riveting device according to claim 5, characterized in that: The lower side of the cylinder (231) is provided with a limiting groove (239) for the radial movement of the pressing head (235).

7. The external valve multi-point riveting device according to claim 6, characterized in that: The cylinder (231) is provided with a recovery component (25), which includes a support plate (251). The support plate (251) is fixed on the lifting rod (221). A hydraulic cylinder (252) is fixed on the support plate (251). The extended end of the hydraulic cylinder (252) is connected to a recovery column (253). A recovery ring (254) is fixed on the lower side of the recovery column (253). A connecting groove (255) is opened on the clamping wedge (233). The recovery ring (254) is inserted into the connecting groove (255).

8. The external valve multi-point riveting device according to claim 7, characterized in that: Multiple elastic recovery plates (256) are provided inside the circle surrounding the multiple buckling wedges (233). The lower side of the elastic recovery plate (256) is in contact with the buckling head (235), and the buckling head (235) is located outside the elastic recovery plate (256).

9. The external valve multi-point riveting device according to claim 8, characterized in that: The upper ends of the plurality of elastic restoring plates (256) are fixed by connecting plates (257), which are fixed to the cylinder (231).

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