A shock absorber sleeve expander

By using an electric lifting plate and a rotating flaring mechanism, combined with the auxiliary cleaning of a vacuum machine and brush strips, the problems of frequent mold changes and impurities on the inner wall are solved, thus improving the efficiency and quality of the shock absorber sleeve flaring machine.

CN120362353BActive Publication Date: 2026-01-02HUBEI DONGFENG JIEXIANG AUTOMOTIVE SHOCK ABSORBER CO LTD
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Patent Information

Application Number
CN202510839428.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-23
Publication Date
2026-01-02
Estimated Expiration
2045-06-23

AI Technical Summary

Technical Problem

Existing shock absorber sleeve flaring machines require frequent mold changes when dealing with sleeves of different diameters, resulting in low work efficiency. Furthermore, metal residues and particles on the inner wall of the sleeve are easily pressed into the inner wall, affecting the flaring accuracy and quality.

Method used

By employing an electric lifting plate and a flaring mechanism, and through the rotational flaring method of the hinge block and the moving block, combined with the auxiliary mechanisms of the vacuum machine and the brush strip, the inner diameter of the sleeve is automatically adjusted and impurities on the inner wall are cleaned, thus avoiding mold replacement and impurities being pressed in.

Benefits of technology

It enables flexible adjustment of the casing inner diameter and precise flaring, improves flaring efficiency, ensures the flatness and smoothness of the casing inner wall, and avoids the influence of metal residue on the flaring process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a shock absorber sleeve pipe flaring machine and relates to the technical field of metal pipe diameter expansion, which comprises a flaring device, an electric lifting plate is arranged in the flaring device, a fixed rod is fixedly connected to the top of the electric lifting plate, a top plate is fixedly connected to the top of the fixed rod, a base is fixedly connected to the top of the electric lifting plate, a connecting plate is fixedly connected to the bottom of the top plate, a clamp is fixedly connected to the top of the base, a sleeve pipe is arranged in the clamp, and a flaring mechanism is arranged at the bottom of the connecting plate. The flaring mechanism is arranged to enable multiple moving blocks and hinged blocks to realize the flaring effect on the inner diameter of the sleeve pipe in a surrounding manner during rotation. The rotating mode can improve the flaring smoothness, avoid the problem that the flaring of the sleeve pipe is irregular due to the deformation of the outer wall of the conventional fixture after long-time use, and ensure that the flaring is a regular circle, thereby ensuring the flaring accuracy of the sleeve pipe.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal pipe expanding, in particular to a shock absorber sleeve expander. BACKGROUND

[0002] The shock absorber sleeve is an important component used in the automobile shock absorption system, which mainly functions to reduce friction and wear during mechanical movement, protect mechanical parts such as bearings, prolong the service life, and improve the mechanical operation efficiency.

[0003] The patent application with publication number CN221454115U discloses a shock absorber sleeve expander, which comprises a base. The pipe is guided into the equipment by the guide plate, and the arc-shaped supporting plate is lowered by the contraction of the second electric hydraulic rod extension end. The lowering of the arc-shaped supporting plate drives the lowering of the lower plate through the lower plate. The pipe on the guide plate rolls down from the right end of the guide plate and is received by the arc-shaped supporting plate. The two expansion cones enter the pipe ends by the extension of the second electric hydraulic rod extension end and the first electric hydraulic rod extension end, and the pipe ends are shaped. The second half-arc plate is lowered by the contraction of the third electric hydraulic rod extension end, so that the right end of the arc-shaped supporting plate is opened, and the shaped pipe falls from the opening of the right end of the arc-shaped supporting plate.

[0004] When the shock absorber sleeve is punched and expanded, different specifications of the shock absorber sleeve require different specifications of the expansion die. The die shape cannot be adjusted for punching and expanding according to different pipe specifications and diameters, which causes the need to frequently change the punching die and affects the working efficiency. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a shock absorber sleeve expander to achieve the purpose of solving the above problems.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme: a shock absorber sleeve expander, comprising an expander, an electric lifting plate is arranged inside the expander, a fixed rod is fixedly connected to the top of the electric lifting plate, a top plate is fixedly connected to the top of the fixed rod, a base is fixedly connected to the top of the electric lifting plate, a connecting plate is fixedly connected to the bottom of the top plate, a clamp is fixedly connected to the top of the base, a sleeve is arranged inside the clamp, and an expanding mechanism is arranged at the bottom of the connecting plate.

[0007] The expanding mechanism comprises:

[0008] An expanding die, which is a hollow circular sleeve structure, is rotatably connected to the top of the connecting plate through a bearing ring, a recess is formed in the inner wall of the expanding die, an electric motor is fixedly connected to the inner wall of the recess, and a rotating shaft is fixedly connected to the bottom output end of the electric motor.

[0009] The hinge block is fixedly connected with a second rotating sleeve at the bottom, one side of the second rotating sleeve is rotatably connected with a second hinge shaft, and the outer wall of the second hinge shaft is fixedly connected with a moving block.

[0010] Preferably, the hinge block is fixedly connected with a first hinge shaft at the top, the outer wall of the first hinge shaft is rotatably connected with a first rotating sleeve, and the outer wall of the first rotating sleeve is fixedly connected with a bearing ring.

[0011] Preferably, the moving block is fixedly connected with an extension rod at one side, the extension rod is fixedly connected with a lifting ring at one end, and the inner wall of the lifting ring is slidably connected with the outer wall of the rotating shaft.

[0012] Preferably, the rotating shaft is fixedly connected with a vacuum machine at the bottom, the vacuum machine is fixedly connected with a communication pipe at the top, and one end of the communication pipe is fixedly connected with the bottom of the extension rod.

[0013] Preferably, the extension rod is in communication with the inside of the vacuum machine through the communication pipe, and the extension rod is used for telescopic pulling of the moving block to move horizontally.

[0014] Preferably, one side of the hinge block is an inclined surface, one side of the bottom of the moving block is an arc surface, and the bottom edge of the flaring die is an arc surface.

[0015] Preferably, the outer wall of the moving block is provided with an auxiliary mechanism, the auxiliary mechanism comprises a brush strip, one end of the brush strip is fixedly connected with the outer wall of the moving block, and the brush strip is used for stirring the inner wall of the sleeve.

[0016] Preferably, the outer wall of the extension rod near the lifting ring is fixedly connected with a blade, the outer wall of the blade is an inclined surface, and the blade is used for stirring air flow when rotating.

[0017] The present application provides a shock absorber sleeve flaring machine, relating to intelligent manufacturing equipment industry technology, which has the following beneficial effects:

[0018] 1、The flaring mechanism is arranged, so that the multiple moving blocks and the hinge block can realize the ring type hole expanding effect on the inner diameter of the sleeve during rotation, and the rotating mode can improve the hole expanding smoothness, avoid the problem of irregular flaring of the sleeve due to deformation of the outer wall of the conventional die after long-time use, and ensure that the flaring is a regular circle, thereby ensuring the flaring accuracy of the sleeve.

[0019] 2、The utility model discloses a set up flaring mechanism, and the hinged block is hinged rotation on the first rotating sleeve through the first hinged shaft, and the hinged block rotation is through the first hinged shaft and the first rotating sleeve rotation, and finally presents the automatic inner collection of moving block and through the rotation of the sleeve pipe of different pipe diameters is completed, and then along with the inclined hinged block continues to complete the flaring work, realizes the flaring function of the sleeve pipe of different circular inner diameters of free adjustment, need not replace different mould, also can switch the access of sleeve pipe quickly, improves flaring work efficiency.

[0020] 3、The utility model discloses a set up auxiliary mechanism, and when moving block fast rotation is flared to sleeve pipe, will be through the rotation of the inner wall of sleeve pipe of moving block outer wall natural scraping, can in sleeve pipe inner wall is scraped off the metal residue particle in its inner wall before the reaming of hinged block, and along with the rotation of the brush strip of moving block drive to push down a large amount of particle, can avoid the problem of the particle in sleeve pipe inner wall being pressed into its inner wall in fixed mould flaring, causes the problem of the decline of inner wall flatness and smoothness.

[0021] 4、The utility model discloses a set up auxiliary mechanism, and along with the rotation of the telescopic rod drive vane synchronous rotation, and the rotation of vane can push the air in sleeve pipe, realizes the air flow, and through the air flow can be the metal particle of sleeve pipe inner wall scraped off and swept down by moving block, along with the air flow and separate from the inner wall of sleeve pipe in the air fast melt into the air, can avoid the problem of particle reattachment to sleeve pipe inner wall and influence the flaring of sleeve pipe inner wall by hinged block subsequently. ACCURATE DRAWINGS

[0022] Figure 1 It is the structure schematic drawing of the utility model;

[0023] Figure 2 It is the structure schematic drawing of the utility model electric lifting plate;

[0024] Figure 3 It is the structure schematic drawing of the utility model connecting plate;

[0025] Figure 4 It is the structure schematic drawing of the utility model flaring mechanism Figure 1 ;

[0026] Figure 5 It is the disassembly structure schematic drawing of the utility model flaring mechanism Figure 1 ;

[0027] Figure 6 It is the structure schematic drawing of the utility model flaring mechanism Figure 2 ;

[0028] Figure 7 It is the disassembly structure schematic drawing of the utility model flaring mechanism Figure 2 ;

[0029] Figure 8 Structure diagram of flaring mechanism of the present application Figure 3

[0030] Figure 9 Structure diagram of flaring mechanism of the present application Figure 1

[0031] Figure 10 Structure diagram of flaring mechanism of the present application Figure 2

[0032] Figure 11 Structure diagram of flaring mechanism of the present application Figure 3

[0033] Figure 12 Structure diagram of flaring mechanism of the present application Figure 4

[0034] Figure 13 Structure diagram of flaring mechanism of the present application Figure 5

[0035] Figure 14 Enlarged view of A of the present application Figure 6

[0036] In the figure: 1 electric lifting plate, 2 flaring device, 3 flaring mechanism, 301 flaring die, 302 groove, 303 motor, 304 rotating shaft, 305 bearing ring, 306 first hinged shaft, 307 first rotating sleeve, 308 hinged block, 309 second rotating sleeve, 310 second hinged shaft, 311 moving block, 312 telescopic rod, 313 communication pipe, 314 vacuum machine, 315 lifting ring, 4 auxiliary mechanism, 401 brush strip, 402 blade, 5 fixed rod, 6 top plate, 7 connecting plate, 8 base, 9 clamp, 10 sleeve. DETAILED DESCRIPTION

[0037] Example one: please refer to Figures 1-6 The present application provides a technical solution: a shock absorber sleeve flaring machine, comprising a flaring device 2, the inside of the flaring device 2 is provided with an electric lifting plate 1, the top of the electric lifting plate 1 is fixedly connected with a fixed rod 5, the top of the fixed rod 5 is fixedly connected with a top plate 6, the top of the electric lifting plate 1 is fixedly connected with a base 8, the bottom of the top plate 6 is fixedly connected with a connecting plate 7, the top of the base 8 is fixedly connected with a clamp 9, the inside of the clamp 9 is provided with a sleeve 10, and the bottom of the connecting plate 7 is provided with a flaring mechanism 3.

[0038] The flaring mechanism 3 comprises:

[0039] ​​​​​​​The flaring die 301 is a hollow circular sleeve structure, the top of the flaring die 301 is rotationally connected with the bottom of the connecting plate 7 through a bearing ring 305, a groove 302 is formed in the inner wall of the flaring die 301, and a motor 303 is fixedly connected to the inner wall of the groove 302, and the bottom output end of the motor 303 is fixedly connected with a rotating shaft 304;

[0040] The hinged block 308 is fixedly connected with a second rotating sleeve 309 at the bottom, a second hinge shaft 310 is rotationally connected to one side of the second rotating sleeve 309, a moving block 311 is fixedly connected to the outer wall of the second hinge shaft 310, and the hinged block 308 is used to rotate and flare the sleeve 10;

[0041] In use, the sleeve 10 to be clamped is placed on the base 8, and then the clamp 9 is started to clamp the sleeve 10, the electric lifting plate 1 is started to rise on the fixed rod 5, the clamp 9 and the sleeve 10 are pushed up to the flaring die 301 through the base 8, and the flaring effect of the sleeve 10 is realized;

[0042] When the sleeve 10 is clamped and pushed up, it will first contact the moving block 311, the caliber of the moving block 311 is the same as itself, so that it is sleeved on the outer wall of the moving block 311, and then it continues to rise and contacts the hinged block 308, the hinged block 308 is an inclined surface, under the continuous rising and pushing, the inner wall of the sleeve 10 will start to expand along the inclined surface of the hinged block 308, and at the same time, the motor 303 is started in advance to drive the rotating shaft 304 to rotate together with the hinged block 308 and the moving block 311, so that the plurality of moving blocks 311 and the hinged block 308 can realize the ring type inner diameter flaring effect of the sleeve 10 during rotation, and the rotating mode can improve the flaring smoothness, avoid the problem that the flaring of the sleeve 10 is irregular due to the deformation of the outer wall of the conventional die after long time use, and ensure that the flaring is a regular circle, thereby ensuring the flaring accuracy of the sleeve 10;

[0043] Embodiment two: please refer to Figures 1-13 On the basis of embodiment one, the application provides a technical solution: in the conventional sleeve flaring process, different inner diameters of the sleeve flaring operation usually need to be equipped with multiple sets of corresponding size dies. Each time the sleeve flaring operation of a certain inner diameter is performed, the operator must manually replace the die. This process has many disadvantages:

[0044] Inefficiency: The replacement of the mold is cumbersome and time-consuming, requiring a lot of time for disassembly, installation and debugging of the mold. When the production task is urgent, frequent replacement of the mold will seriously affect the production progress, resulting in reduced production per unit of time and inability to meet the demand for large-scale production. For example, in a large construction project, a large number of different inner diameter sleeves are needed for pipeline laying. If the traditional method is used, the mold replacement time alone can greatly extend the project duration. Therefore, the top of the hinge block 308 is fixedly connected with a first hinge shaft 306, the outer wall of the first hinge shaft 306 is rotatably connected with a first rotating sleeve 307, and the outer wall of the first rotating sleeve 307 is fixedly connected with a bearing ring 305.

[0045] The side of the moving block 311 is fixedly connected with an extension rod 312, one end of the extension rod 312 is fixedly connected with a lifting ring 315, and the inner wall of the lifting ring 315 is slidably connected with the outer wall of the rotating shaft 304.

[0046] The bottom of the rotating shaft 304 is fixedly connected with a vacuum machine 314, the top of the vacuum machine 314 is fixedly connected with a communication pipe 313, and one end of the communication pipe 313 is fixedly connected with the bottom of the extension rod 312.

[0047] The inside of the extension rod 312 communicates with the inside of the vacuum machine 314 through the communication pipe 313, and the extension rod 312 is used to extend and pull the moving block 311 to move horizontally.

[0048] One side of the hinge block 308 is an inclined surface, one side of the bottom of the moving block 311 is an arc surface, and the edge of the bottom of the flared mold 301 is an arc surface.

[0049] When the sleeve 10 with different inner diameters is flared, different molds need to be used, but the mold does not need to be replaced at this time. The vacuum machine 314 is started to draw the hydraulic oil in the extension rod 312 back into the vacuum machine 314 through the communication pipe 313, so that the extension rod 312 can be shortened. When the extension rod 312 is shortened, the moving block 311 is pulled towards the center, and the moving block 311 approaches the center of the rotating shaft 304, which pulls the hinge block 308 to rotate through the second rotating sleeve 309 and the second hinge shaft 310. The hinge block 308 rotates by being hingedly connected to the first rotating sleeve 307 through the first hinge shaft 306. The hinge block 308 rotates by rotating the first hinge shaft 306 and the first rotating sleeve 307. Finally, the moving block 311 automatically retracts and flares the sleeve 10 with different diameters by rotating. Then, with the inclined hinge block 308, the flaring work of the sleeve 10 with different circular inner diameters is completed, realizing the flaring function of the sleeve 10 with different circular inner diameters without replacing different molds, quickly switching the connection of the sleeve 10, and improving the flaring work efficiency.

[0050] When the telescopic rod 312 is retracted, the vertical position of the moving block 311 changes due to the rotation of the hinged block 308, thereby driving the telescopic rod 312 and the lifting ring 315 to perform lifting movement, and the lifting ring 315 vertically slides on the outer wall of the rotating shaft 304;

[0051] Embodiment three: please refer to Figures 1-14 On the basis of embodiment one and embodiment two, the application provides a technical solution: in the traditional fixed mold flaring process, the following problems need to be solved urgently:

[0052] Metal residue pollution problem: in the production, transportation and storage process of the casing, metal residues, particulate matter and other impurities are easily attached to the inner wall of the casing. These impurities may come from the cutting and processing of raw materials, or from the dust in the environment. During the fixed mold flaring, the particulate matter in the casing wall is easily pressed into the inner wall due to the close contact and pressure of the mold and the casing wall. It is like pressing some small stones on a smooth wall, which will make the wall uneven. The casing wall with pressed particulate matter has greatly decreased smoothness and flatness, seriously affecting the quality of the casing.

[0053] After the particulate matter is pressed into the casing wall, it will cause local stress concentration in the subsequent flaring process. When the hinged block and other flaring components flares the casing, these stress concentration areas are prone to cracks, deformation and other defects, which will affect the flaring accuracy.

[0054] If the casing inner wall is manually cleaned before flaring, it is not only tedious and inefficient, but also difficult to ensure the thoroughness of cleaning. For some long and thin casings, manual cleaning is very difficult, and it is difficult to effectively remove the particulate matter in the deep part.

[0055] Even if some ways are used to clean some particulate matter from the casing inner wall, during the fixed mold flaring process, the cleaned particulate matter is easily attached to the casing inner wall again due to poor air flow in the casing. It is like cleaning dust in a closed space, the dust is only temporarily lifted and will soon fall again. The second attachment of particulate matter will also have an adverse effect on the flaring process and the quality of the casing, leading to the above problems. Therefore, the outer wall of the moving block 311 is provided with an auxiliary mechanism 4, which includes a brush strip 401, one end of which is fixedly connected with the outer wall of the moving block 311, and the brush strip 401 is used to stir the inner wall of the casing 10.

[0056] The telescopic rod 312 is fixedly connected with a blade 402 on the outer wall of one section of the lifting ring 315, the outer wall of the blade 402 is an inclined surface, and the blade 402 is used to stir the air flow when rotating;

[0057] When the moving block 311 rotates rapidly to expand the sleeve 10, the outer wall of the moving block 311 can naturally rotate and scrape the inner wall of the sleeve 10, so that the metal residue particles existing in the inner wall of the sleeve 10 can be scraped off before the sleeve 10 is expanded by the hinge block 308, and a large amount of particles can be pushed off by the rotation of the brush strip 401 driven by the moving block 311, so that the particles existing in the inner wall of the sleeve 10 can be prevented from being pressed into the inner wall during the expansion of the sleeve 10 in the fixed mold, and the problem of the decline of the flatness and smoothness of the inner wall can be avoided.

[0058] The rotation of the blade 402 can push the air in the sleeve 10 to flow, so that the metal particles scraped off by the moving block 311 and swept off by the brush strip 401 can be quickly mixed into the air and separated from the inner wall of the sleeve 10, and the problem of the reattachment of the particles to the inner wall of the sleeve 10 affecting the expansion of the inner wall of the sleeve 10 by the hinge block 308 can be avoided.

[0059] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A shock absorber sleeve flaring machine, comprising a flaring device (2), wherein an electric lifting plate (1) is provided inside the flaring device (2), a fixing rod (5) is fixedly connected to the top of the electric lifting plate (1), a top plate (6) is fixedly connected to the top of the fixing rod (5), a base (8) is fixedly connected to the top of the electric lifting plate (1), and a connecting plate (7) is fixedly connected to the bottom of the top plate (6), characterized in that: The base (8) top fixedly connected with clamp (9), the clamp (9) inside is provided with sleeve (10), the connecting plate (7) bottom is provided with flaring mechanism (3); The flaring mechanism (3) includes: Flaring die (301), the flaring die (301) is hollow circular sleeve structure, the flaring die (301) top and connecting plate (7) bottom are rotationally connected through bearing ring (305), the flaring die (301) inner wall is provided with recess (302), the recess (302) inner wall is fixedly connected with motor (303), and the motor (303) bottom output end is fixedly connected with rotating shaft (304); Hinged block (308), the hinged block (308) bottom is fixedly connected with second rotating sleeve (309), and the second rotating sleeve (309) one side is rotationally connected with second hinged shaft (310), and the second hinged shaft (310) outer wall is fixedly connected with moving block (311), and the hinged block (308) is used to rotate flaring sleeve (10) effect; The hinged block (308) top is fixedly connected with first hinged shaft (306), and the first hinged shaft (306) outer wall is rotationally connected with first rotating sleeve (307), and the first rotating sleeve (307) outer wall is fixedly connected with bearing ring (305); The moving block (311) one side is fixedly connected with telescopic rod (312), and the telescopic rod (312) one end is fixedly connected with lifting ring (315), and the lifting ring (315) inner wall and rotating shaft (304) outer wall are slidably connected.

2. A shock absorber sleeve flaring machine according to claim 1, wherein: The rotating shaft (304) bottom is fixedly connected with vacuum machine (314), and the vacuum machine (314) top is fixedly connected with communication pipe (313), and the communication pipe (313) one end is fixedly connected with telescopic rod (312) bottom.

3. A shock absorber sleeve flaring machine as defined in claim 2, wherein: The telescopic rod (312) is communicated with vacuum machine (314) inside through communication pipe (313) inside, and the telescopic rod (312) is used to stretch out and pull moving block (311) horizontal movement.

4. A shock absorber sleeve flaring machine as defined in claim 3, wherein: One side of the hinged block (308) is an inclined surface, and one side of the bottom of the moving block (311) is formed as an arc surface, and the bottom edge of the flaring die (301) is formed as an arc surface.

5. A shock absorber sleeve flaring machine as defined in claim 4, wherein: The moving block (311) outer wall is provided with auxiliary mechanism (4), and the auxiliary mechanism (4) includes brush strip (401), and one end of the brush strip (401) is fixedly connected with the outer wall of the moving block (311), and the brush strip (401) is used to stir the inner wall of the sleeve (10).

6. A shock absorber sleeve flaring machine as defined in claim 5, wherein: The outer wall of the telescopic rod (312) close to the lifting ring (315) one section is fixedly connected with blade (402), and the outer wall of the blade (402) is an inclined surface, and the blade (402) is used to stir air flow when rotating.

Citation Information

Patent Citations

  • Damper casing pipe flaring machine

    CN221454115U

  • Adjustable pipe roll and support mechanism

    CA2986187A1

  • Forming device of multiple-site pipe end forming machine

    CN101020217A