A motorcycle brake assembly outer diameter fixing device

Abstract

This application discloses a motorcycle brake assembly outer diameter fixing device, including a cylinder, a support column, a primary lifting assembly, a secondary lifting assembly, a pair of grippers, a lifting cylinder, and a lifting chamber. The lifting chamber is located inside the support column and has a through hole at the top. The primary lifting assembly is driven to rise and fall by the cylinder. The secondary lifting assembly is floatingly mounted on its top via an elastic element. The grippers are movably mounted on the top of the secondary lifting assembly, with their upper ends able to open outwards and their lower ends connected to the inner wall of the lifting chamber. The top of the lifting cylinder has a support disc that is linked to the primary lifting assembly. During operation, the brake assembly is placed on the support disc, the cylinder drives the assembly to rise, and the grippers extend outwards from the central hole to above its top surface. The cylinder continues to drive, fixing the primary assembly, compressing the elastic element in the secondary assembly, and the lifting cylinder drives the support disc to rise, clamping the brake assembly between the support disc and the grippers. This device achieves automated clamping, has strong adaptability, ensures stable and precise fixing, and improves production efficiency and quality.

Description

Technical Field

[0001] This invention relates to a motorcycle brake assembly outer circle fixing device. Background Technology

[0002] In the current field of motorcycle brake assembly manufacturing, a motorcycle brake assembly external cylindrical grinding device disclosed in patent CN201920331547.8 has improved the precision and efficiency of brake external cylindrical grinding operations to a certain extent.

[0003] This device, by setting up a push bolt, a scissor-type support rod, and a grinding wheel, can precisely control the distance between the grinding wheel and the brake, achieving precise grinding of the outer circle of the brake; using a hydraulic cylinder, a hydraulic rod, and a load-bearing box, it can be adaptively adjusted according to different heights of the brake; with the help of a second support column and a T-shaped fixing rod, the brake is stabilized and prevented from shaking during the grinding process.

[0004] However, this existing technology still has some problems that urgently need to be solved. Regarding fixation, it mainly uses a T-shaped fixing rod to fix the brake to the second support column. This fixing method only positions the brake's central shaft hole and lacks sufficient stability and flexibility for fixing the brake's outer diameter. When encountering brake assemblies of different sizes or shapes, it is difficult to achieve quick and accurate outer diameter positioning and fixation, failing to effectively meet diverse production needs. Furthermore, its fixing operation is relatively cumbersome, requiring multiple manual adjustments, which is not conducive to the efficient advancement of automated production. In actual production, when frequently changing brake assemblies of different specifications for processing, this fixing method easily leads to reduced production efficiency and makes it difficult to guarantee the consistency and reliability of each fixing, thus affecting the stability of product quality. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] This application provides a motorcycle brake assembly outer circle fixing device, including a cylinder and a support column, and also includes a primary lifting assembly, a secondary lifting assembly, a pair of grippers, a lifting cylinder, and a lifting cavity. The lifting cavity is disposed in the support column and has a through hole at the top. The primary lifting assembly is lifted and installed in the support column by the cylinder. The secondary lifting assembly is floatingly installed on the top of the primary lifting assembly by an elastic element. The pair of grippers are movably installed on the top of the secondary lifting assembly, with their upper ends bent and able to open outwards, and their lower ends connected to the inner wall of the lifting cavity. The top of the lifting cylinder has a supporting disc, and its inner peripheral wall is linked with the primary lifting assembly.

[0007] The primary lifting assembly includes a lifting plate, a protrusion, an inner vertical groove, and an outer vertical groove. The lifting plate is fixedly installed on the top of the piston rod of the cylinder, and the protrusion is fixed on the peripheral wall. The inner vertical groove is opened on the side wall of the support column, and the outer vertical groove is opened on the side wall of the lifting cylinder. The protrusion slides in conjunction with the inner and outer vertical grooves.

[0008] The number of protrusions, inner vertical grooves, and outer vertical grooves is at least three, and they correspond one-to-one.

[0009] The secondary lifting assembly includes a sleeve, a ring, and a hinge shaft. The sleeve is slidably installed in the through hole along its own axis, and the ring is slidably installed in the lifting cavity along the axis of the sleeve. The ring is fixed to the bottom of the sleeve, and both ends of the hinge shaft are fixed to the inner circumferential wall of the sleeve. The middle parts of a pair of grippers are rotatably installed on the hinge shaft through connecting rings.

[0010] The connecting ring has a semi-circular groove concentric with the axis of the hinge shaft. A protrusion is fixed on the adjacent end face of the two connecting rings. Each protrusion is slidably inserted into the semi-circular groove on the opposite connecting ring. A return spring is provided between the corresponding protrusion and one end of the semi-circular groove to drive the top of a pair of grippers to close.

[0011] The gripper includes a transmission section and a pressing section that are connected to each other. A ring is installed in the middle of the transmission section. The pressing section is fixed at the top of the transmission section and extends radially outward along the through hole. The lower end of the transmission section is connected to the inner wall of the mounting cavity through a linkage assembly.

[0012] The linkage assembly includes a pair of transmission grooves and a pair of transmission rods. The pair of transmission grooves are symmetrically arranged on the inner wall of the lifting chamber. Each transmission rod is fixed to the bottom end of each gripper. The end of each transmission rod is slidably installed in the corresponding transmission groove. The top of the transmission groove is inclined towards the central axis of the lifting cylinder.

[0013] The inner wall of the lifting cylinder has grooves corresponding to a pair of transmission slots.

[0014] The elastic element includes a pair of bushings, a pair of slide rods and a pair of pre-tension springs. The pair of bushings are symmetrically fixed on the top surface of the first-stage lifting assembly. The pair of slide rods are slidably installed in each bushing and have baffles fixed at their bottom ends. The top ends of the slide rods are fixed to the bottom surface of the second-stage lifting assembly. The pair of pre-tension springs are respectively sleeved on the outside of each slide rod, with their top and bottom ends abutting against the bottom surface of the second-stage lifting assembly and the top ends of the bushings, respectively.

[0015] The supporting disc has notches spaced apart along its circumference, and the top of the support column has inserts spaced apart along its circumference, with each insert slidingly engaging with the corresponding notch.

[0016] The beneficial effects of this invention are as follows:

[0017] Automated clamping with high efficiency: The cylinder drives the first-stage lifting component, which in turn opens the gripper and raises the supporting disc, realizing an integrated operation of "placing workpiece-automatic clamping". No manual adjustment is required, which greatly improves the fixing efficiency and can be adapted to automated production lines.

[0018] Adaptive clamping to protect the workpiece: The grippers are floatingly mounted through elastic elements, and together with the return spring and preload spring, the clamping force can be adaptively adjusted according to the outer diameter of the brake assembly to avoid workpiece surface damage or deformation caused by rigid contact. At the same time, it can stably withstand the radial force during the grinding process to ensure machining accuracy.

[0019] Precise positioning and strong stability: The grippers extend outward from the central hole of the brake assembly, forming a stable "upper and lower clamping" structure with the supporting disc. Combined with the guiding cooperation of the lifting cylinder and the support column (slot and insert), it ensures that the workpiece does not shift during processing or assembly, effectively solving the problem of workpiece shaking in existing grinding devices.

[0020] Compact structure and wide adaptability: Each component is integrated into the support column and lifting cylinder, occupying little space. Furthermore, by adjusting the opening of the grippers, it can adapt to the outer diameter fixing requirements of various specifications of brake assemblies, reducing the time cost of changing tooling. Attached Figure Description

[0021] Figure 1 This is a perspective view of the outer circle fixing device of the motorcycle brake assembly in the embodiments of this application;

[0022] Figure 2 This is a perspective view of the outer circle fixing device of the motorcycle brake assembly in the embodiment of this application (the lifting cylinder is longitudinally cut open).

[0023] Figure 3 This is a perspective view of the outer circle fixing device of the motorcycle brake assembly in the embodiment of this application (the lifting cylinder and support column are longitudinally cut apart).

[0024] Figure 4 This is a longitudinal sectional perspective view of the lifting cylinder in an embodiment of this application;

[0025] Figure 5 This is a perspective view (partially longitudinally cut) of the primary lifting component and the secondary lifting component in the embodiments of this application.

[0026] Figure 6 This is a perspective view of a pair of grippers in engagement state in an embodiment of this application;

[0027] Figure 7 This is a perspective view of a single gripper in an embodiment of this application.

[0028] Figure Labels

[0029] 1-Cylinder, 11-Piston rod, 2-Support column, 21-Insertion block, 3-First-stage lifting assembly, 31-Lifting plate, 32-Protrusion, 33-Inner vertical groove, 34-Outer vertical groove, 4-Second-stage lifting assembly, 41-Sleeve, 42-Ring, 43-Hinge shaft, 44-Connecting ring, 441-Semi-circular groove, 442-Protrusion plate, 443-Reset spring, 5-Claw, 51-Transmission section, 52-Pressing section, 53-Linkage assembly, 531-Transmission groove, 532-Transmission rod, 6-Lifting cylinder, 61-Groove, 7-Lifting cavity, 8-Through hole, 9-Supporting disc, 91-Groove notch, 10-Elastic element, 101-Shaft sleeve, 102-Slide rod, 103-Baffle, 104-Preload spring. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] The motorcycle brake assembly outer circle fixing device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0033] Example 1:

[0034] This application provides a motorcycle brake assembly outer circle fixing device, including a cylinder 1 and a support column 2, and also includes a primary lifting assembly 3, a secondary lifting assembly 4, a pair of grippers 5, a lifting cylinder 6, and a lifting cavity 7. The lifting cavity 7 is disposed in the support column 2 and has a through hole 8 at the top. The primary lifting assembly 3 is lifted and installed in the support column 2 by the cylinder 1. The secondary lifting assembly 4 is floatingly installed on the top of the primary lifting assembly 3 by an elastic element 10. The pair of grippers 5 are movably installed on the top of the secondary lifting assembly 4, with the upper end bent and able to open outward, and the lower end connected to the inner wall of the lifting cavity 7. The top of the lifting cylinder 6 is provided with a supporting disc 9, and the inner peripheral wall is linked with the primary lifting assembly 3.

[0035] like Figures 1 to 3 As shown, due to the above structure, when it is necessary to fix the motorcycle brake assembly, it is placed on the support disc 9. The cylinder 1 drives the first-stage lifting component 3 to rise, which in turn drives the lifting cylinder 6 to rise, and at the same time drives the second-stage lifting component 4 to rise. During the rise of the second-stage lifting component 4, the lower end of the gripper 5 opens outward under the action of the linkage component 53. After the upper end of the gripper 5 is above the top surface of the brake assembly, the first-stage lifting component 3 continues to rise. At this time, the elastic element 10 is compressed, and the second-stage lifting component 4 descends relative to the first-stage lifting component 3. The gripper 5 remains open, and the lifting cylinder 6 continues to rise. The support disc 9 and the upper end of the gripper 5 cooperate to clamp and fix the brake assembly, achieving a stable and automatic fixing effect.

[0036] Example 2:

[0037] The difference from Embodiment 1 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the first-stage lifting assembly 3 includes a lifting plate 31, a protrusion 32, an inner vertical groove 33, and an outer vertical groove 34. The lifting plate 31 is fixedly installed on the top of the piston rod 11 of the cylinder 1, and the protrusion 32 is fixedly installed on the peripheral wall. The inner vertical groove 33 is opened on the side wall of the support column 2, and the outer vertical groove 34 is opened on the side wall of the lifting cylinder 6. The protrusion 32 slides in cooperation with the inner vertical groove 33 and the outer vertical groove 34.

[0038] In this embodiment of the application, the number of protrusions 32, inner vertical grooves 33 and outer vertical grooves 34 is at least three, and they correspond one-to-one.

[0039] like Figures 2 to 4 As shown, due to the above structure, the cylinder 1 drives the lifting plate 31 to rise, and the protrusion 32 slides along the inner vertical groove 33 and the outer vertical groove 34. When the secondary lifting component 4 stops moving, the protrusion 32 abuts against the top of the outer vertical groove 34, driving the lifting cylinder 6 to rise synchronously, ensuring the stability of the lifting plate 31 and realizing the linkage between the primary lifting component 3 and the lifting cylinder 6. The arrangement of multiple protrusions 32, inner vertical grooves 33 and outer vertical grooves 34 further improves the stability of the structure and the uniformity of force.

[0040] Example 3:

[0041] The difference from Embodiment 2 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the secondary lifting assembly 4 includes a sleeve 41, a ring 42, and a hinge shaft 43. The sleeve 41 is slidably installed in the through hole 8 along its own axis, the ring 42 is slidably installed in the lifting cavity 7 along the axis of the sleeve 41, the ring 42 is fixedly disposed at the bottom of the sleeve 41, the two ends of the hinge shaft 43 are fixedly connected to the inner peripheral wall of the sleeve 41, and the middle parts of a pair of grippers 5 are rotatably mounted on the hinge shaft 43 through connecting rings 44.

[0042] In this embodiment of the application, a semi-circular groove 441 concentric with the axis of the hinge shaft 43 is provided on the connecting ring 44. A protrusion 442 is fixed on the adjacent end face of the two connecting rings 44. Each protrusion 442 is slidably inserted into the semi-circular groove 441 on the opposite connecting ring 44. A return spring 443 is provided between the corresponding protrusion 442 and one end of the semi-circular groove 441 for driving the top of a pair of grippers 5 to close.

[0043] In this embodiment of the application, the gripper 5 includes a transmission section 51 and a pressing section 52 connected to each other. A ring 42 is installed in the middle of the transmission section 51. The pressing section 52 is fixed at the top of the transmission section 51 and extends radially outward along the through hole 8. The lower end of the transmission section 51 is connected to the inner wall of the mounting cavity through a linkage assembly 53.

[0044] like Figures 3 to 7 As shown, due to the above structure, when the secondary lifting assembly 4 rises, the sleeve 41 slides in the through hole 8, the ring 42 slides in the lifting cavity 7, the gripper 5 rotates around the hinge shaft 43 via the connecting ring 44, the protrusion 442 on the connecting ring 44 slides in the semi-circular groove 441, and the return spring 443 can keep the top of the gripper 5 close. When the secondary lifting assembly 4 rises, the lower end of the transmission section 51 drives the gripper 5 to rotate around the hinge shaft 43 under the action of the linkage assembly 53, and the pressing section 52 opens outward to facilitate clamping the brake assembly. The structure is ingeniously designed and the operation is reliable.

[0045] Example 4:

[0046] The difference from Embodiment 3 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the linkage component 53 includes a pair of transmission grooves 531 and a pair of transmission rods 532. The pair of transmission grooves 531 are symmetrically arranged on the inner wall of the lifting cavity 7, and each transmission rod 532 is fixedly mounted on the bottom end of each gripper 5. The ends of each transmission rod 532 are slidably installed in the corresponding 31, and the top of the 31 is inclined toward the central axis of the lifting cylinder 6.

[0047] In this embodiment of the application, the inner wall of the lifting cylinder 6 is provided with a groove 61 corresponding to a pair of transmission grooves 531.

[0048] like Figures 3 to 5 As shown, due to the above structure, when the secondary lifting assembly 4 rises, the transmission rod 532 at the bottom of the gripper 5 slides in 31. Since the top of 31 is inclined towards the central axis, the transmission rod 532 drives the gripper 5 to rotate around the hinge shaft 43 during the sliding process, causing the pressing section 52 to open outward, thus realizing the automatic opening action of the gripper 5. The groove 61 on the inner wall of the lifting cylinder 6 provides the transmission rod 532 with a space for movement, avoiding interference between structures.

[0049] Example 5:

[0050] The difference from Embodiment 4 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the elastic element 10 includes a pair of bushings 101, a pair of slide rods 102, and a pair of pre-tension springs 104. The pair of bushings 101 are symmetrically fixed on the top surface of the primary lifting assembly 3. The pair of slide rods 102 are slidably installed in each bushing 101, with a baffle 103 fixed at the bottom end. The top end of the slide rod 102 is fixed to the bottom surface of the secondary lifting assembly 4. The pair of pre-tension springs 104 are respectively sleeved on the outside of each slide rod 102, with the top and bottom ends respectively abutting against the bottom surface of the secondary lifting assembly 4 and the top end of the bushing 101.

[0051] like Figures 3 to 5 As shown, due to the above structure, the elastic element 10 provides floating support for the secondary lifting assembly 4. When the primary lifting assembly 3 rises to a certain level, the secondary lifting assembly 4 is resisted, the slide rod 102 slides in the bushing 101, and the pre-tension spring 104 is compressed, realizing the descent of the secondary lifting assembly 4 relative to the primary lifting assembly 3, keeping the gripper 5 in an open state. At the same time, the elasticity of the pre-tension spring 104 ensures the clamping force of the gripper 5 and the supporting disc 9 on the brake assembly, improving the reliability of the fixation.

[0052] Example 6:

[0053] The difference from Embodiment 5 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the supporting disc 9 is provided with notches 91 spaced apart along the circumference, and the top of the support column 2 is fixedly provided with inserts 21 spaced apart along the circumference, with each insert 21 slidingly engaged with the corresponding notch 91.

[0054] like Figures 1 to 2 As shown, due to the above structure, during the lifting process of the lifting cylinder 6, the insert block 21 slides in the notch 91, which plays a guiding role for the lifting cylinder 6, ensuring the smooth lifting of the supporting disc 9, avoiding deviation during the lifting process, and further improving the accuracy of fixing the brake assembly.

[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A motorcycle brake assembly outer diameter fixing device, comprising a cylinder and a support column, characterized in that, It also includes a primary lifting assembly, a secondary lifting assembly, a pair of grippers, a lifting cylinder, and a lifting cavity. The lifting cavity is set inside the support column and has a through hole at the top. The primary lifting assembly is lifted and installed in the support column by a cylinder. The secondary lifting assembly is floatingly installed on top of the primary lifting assembly by an elastic element. The pair of grippers are movably installed on top of the secondary lifting assembly, with their upper ends bent and able to open outwards, and their lower ends connected to the inner wall of the lifting cavity. The top of the lifting cylinder has a supporting disc, and its inner peripheral wall is linked with the primary lifting assembly. The secondary lifting assembly includes a sleeve, a ring, and a hinge shaft. The sleeve is slidably installed in a through hole along its own axis. The ring is slidably installed in a lifting cavity along the axis of the sleeve and is fixed to the bottom of the sleeve. Both ends of the hinge shaft are fixedly connected to the inner circumferential wall of the sleeve. The middle parts of a pair of grippers are rotatably mounted on the hinge shaft via connecting rings. The connecting ring has a semi-circular groove concentric with the axis of the hinge shaft. A protruding plate is fixed to the adjacent end face of each of the two connecting rings. Each protruding plate is slidably inserted into the semi-circular groove on the opposite connecting ring. A return spring is provided between the protruding plate and one end of the semi-circular groove to drive the top of a pair of grippers to close. The gripper includes a transmission section and a pressing section connected to each other. A ring is installed in the middle of the transmission section, and the pressing section is fixed at the top of the transmission section and extends radially outward along the through hole. The lower end of the transmission section is connected to the inner wall of the mounting cavity via a linkage assembly. The linkage assembly includes a pair of transmission grooves and a pair of transmission rods. The pair of transmission grooves are symmetrically arranged on the inner wall of the lifting chamber. Each transmission rod is fixed to the bottom end of each gripper, and the end of each transmission rod is slidably installed in the corresponding transmission groove. The top of each transmission groove is inclined towards the central axis of the lifting cylinder. The inner wall of the lifting cylinder is provided with grooves corresponding to a pair of transmission slots; The primary lifting assembly includes a lifting plate, a protrusion, an inner vertical groove, and an outer vertical groove. The lifting plate is fixedly installed on the top of the piston rod of the cylinder, and the protrusion is fixed on the peripheral wall. The inner vertical groove is opened on the side wall of the support column, and the outer vertical groove is opened on the side wall of the lifting cylinder. The protrusion slides in cooperation with the inner and outer vertical grooves.

2. The motorcycle brake assembly outer circle fixing device according to claim 1, characterized in that, The number of the protrusions, inner vertical grooves, and outer vertical grooves is at least three, and they correspond one-to-one.

3. The motorcycle brake assembly outer circle fixing device according to claim 1, characterized in that, The elastic element includes a pair of bushings, a pair of slide rods, and a pair of pre-tension springs. The pair of bushings are symmetrically fixed on the top surface of the first-stage lifting assembly. The pair of slide rods are slidably installed in each bushing and have baffles fixed at their bottom ends. The top ends of the slide rods are fixed to the bottom surface of the second-stage lifting assembly. The pair of pre-tension springs are respectively sleeved on the outside of each slide rod, with their top and bottom ends abutting against the bottom surface of the second-stage lifting assembly and the top ends of the bushings, respectively.

4. The motorcycle brake assembly outer circle fixing device according to claim 1, characterized in that, The supporting disc has notches spaced apart along its circumference, and the top of the supporting column has inserts spaced apart along its circumference, with each insert slidingly engaging with the corresponding notch.

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