Fixing device for outer circle of motorcycle brake assembly

Abstract

The invention discloses an outer circle fixing device for a motorcycle brake assembly. The outer circle fixing device comprises an air cylinder, a supporting column, a first-stage lifting assembly, a second-stage lifting assembly, a pair of clamping jaws, a lifting cylinder and a lifting cavity. The lifting cavity is formed in the supporting column, a through hole is formed in the top of the lifting cavity, the first-stage lifting assembly is driven by an air cylinder to ascend and descend, the second-stage lifting assembly is installed on the top of the first-stage lifting assembly in a floating mode through an elastic piece, the clamping jaw is movably installed on the top of the second-stage lifting assembly, the upper end of the clamping jaw can extend outwards, and the lower end of the clamping jaw is in transmission connection with the inner wall of the lifting cavity. During working, the brake assembly is placed on the bearing disc, the air cylinder driving assembly ascends, and the clamping jaws extend out of the central round hole and then extend out to the position above the top face of the clamping jaws; the air cylinder continues to drive, the first-stage assembly is fixed, the second-stage assembly compresses the elastic piece, the lifting cylinder drives the bearing disc to ascend, the brake assembly is clamped between the bearing disc and the clamping jaw, automatic clamping is achieved, the adaptability is high, it is guaranteed that fixing is stable and accurate, and the production efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to an outer circle fixing device for a motorcycle brake assembly. Background Art

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

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

[0004] However, this existing technology still has some problems that need to be solved. In terms of fixation, it mainly fixes the brake to the second support column through a T-shaped fixing rod. This fixing method only positions the central axis hole of the brake and lacks sufficient stability and flexibility for fixing the outer circle of the brake. When encountering brake assemblies of different sizes or shapes, it is difficult to achieve rapid and accurate positioning and fixation of the outer circle, which cannot effectively meet the diverse production needs. In addition, its fixing operation is relatively cumbersome and requires manual multi-step adjustment, which is not conducive to the efficient promotion of automated production. In actual production, when brake assemblies of different specifications are frequently replaced for processing, this fixing method is likely to lead to reduced production efficiency and it is difficult to ensure the consistency and reliability of each fixation, thereby 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] The present application provides an outer circle fixing device for a motorcycle brake assembly, including a cylinder and a support column, and also including a first-level lifting component, a second-level lifting component, a pair of clamping claws, a lifting cylinder, and a lifting chamber. The lifting chamber is arranged in the support column and has a through hole on the top. The first-level lifting component is installed in the support column by means of a cylinder, and the second-level lifting component is floatingly installed on the top of the first-level lifting component through an elastic member. A pair of clamping claws are movably installed on the top of the second-level lifting component, the upper end of which is bent and can be opened outward, and the lower end is transmission-connected to the inner wall of the lifting chamber. A supporting disc is provided on the top of the lifting cylinder, and the inner circumferential wall is linked to the first-level lifting component.

[0007] The first-stage 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 surrounding 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 vertical groove and the outer vertical groove.

[0008] The number of the protrusions, the inner vertical grooves and the 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 twisted 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 at the bottom of the sleeve, and the two ends of the twisted shaft are fixed to the inner wall of the sleeve. The middle parts of a pair of clamps are rotatably installed on the twisted shaft through connecting rings.

[0010] A semicircular groove concentric with the axis of the twist shaft is provided on the connecting ring. A convex plate is fixed on the adjacent end faces of the two connecting rings. Each convex plate is slidably inserted into the semicircular groove on the relative connecting ring. A reset spring is provided between the corresponding convex plate and one end of the semicircular groove to drive the top ends of a pair of clamping jaws to close.

[0011] The clamp includes a transmission section and a pressing section that are connected to each other. A circular 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 transmission-connected to the inner wall of the installation 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 at the bottom end of each clamping claw. The end of each transmission rod is slidably installed in the corresponding transmission groove, and the top end of the transmission groove is inclined toward the central axis of the lifting cylinder.

[0013] The inner wall of the lifting cylinder is provided with grooves corresponding to the pair of transmission grooves.

[0014] The elastic part includes a pair of sleeves, a pair of sliding rods and a pair of pre-tightening springs. The pair of sleeves are symmetrically fixed on the top surface of the first-level lifting assembly. A pair of sliding rods are respectively slidably installed in each sleeve, and a baffle is fixed at the bottom end. The top end of the sliding rod is fixed to the bottom surface of the second-level lifting assembly. A pair of pre-tightening springs are respectively sleeved on the outside of each sliding rod, and the top and bottom ends are respectively in contact with the bottom surface of the second-level lifting assembly and the top end of the sleeve.

[0015] The supporting disc is provided with notches at intervals along the circumferential direction, and the top end of the support column is fixed with inserting blocks at intervals along the circumferential direction, and each inserting block is slidably matched with the corresponding notch.

[0016] The beneficial effects of the present invention are as follows: Automatic clamping, high efficiency: The cylinder drives the first-stage lifting component, linking the opening of the clamping jaws and the rise of the supporting disc to achieve the integrated operation of "placement of workpiece - automatic clamping". No manual adjustment is required, which greatly improves the fixing efficiency and is compatible with automated production lines. Adaptive clamping to protect the workpiece: The clamping jaws are floatingly installed through elastic parts, and cooperate with the return spring and preload spring to adaptively adjust the clamping force according to the outer diameter of the brake assembly to avoid damage or deformation of the workpiece surface caused by rigid contact. At the same time, it can stably withstand the radial force during the grinding process to ensure processing accuracy. Precise positioning and strong stability: The clamping jaws extend from the central circular hole of the brake assembly and then open outward, forming a stable "upper and lower clamping" structure with the supporting disc. Combined with the guiding cooperation between the lifting cylinder and the support column (slots and inserts), it ensures that the workpiece does not deviate during the processing or assembly process, effectively solving the problem of easy shaking of workpieces in existing grinding devices. Compact structure and wide adaptability: All components are integrated into the support column and the lifting cylinder, which takes up little space. By adjusting the opening range of the clamping jaws, it can adapt to the external circle fixing requirements of various specifications of brake assemblies, reducing the time cost of replacing tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the outer circle fixing device of the motorcycle brake assembly in the embodiment of the present application; Figure 2 A three-dimensional diagram of the outer circle fixing device of the motorcycle brake assembly in an embodiment of the present application (the lifting cylinder is longitudinally cut); Figure 3 A three-dimensional diagram of the outer circle fixing device of the motorcycle brake assembly in an embodiment of the present application (the lifting cylinder and the support column are longitudinally cut); Figure 4 This is a longitudinally cutaway perspective view of the lifting cylinder in the embodiment of the present application; Figure 5 A perspective view of the primary lifting assembly and the secondary lifting assembly in an embodiment of the present application (partially cut away longitudinally); Figure 6 This is a three-dimensional diagram of a pair of clamping jaws in the embodiment of the present application; Figure 7 This is a three-dimensional diagram of a single clamping jaw in an embodiment of the present application.

[0018] Reference numerals 1- cylinder, 11- piston rod, 2- support column, 21- insert block, 3- first-level lifting assembly, 31- lifting plate, 32- convex block, 33- inner vertical groove, 34- outer vertical groove, 4- second-level lifting assembly, 41- sleeve, 42- ring, 43- twisted shaft, 44- connecting ring, 441- semicircular groove, 442- convex plate, 443- return spring, 5- clamping 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- missing groove, 10- elastic member, 101- bushing, 102- slide rod, 103- baffle, 104- preload spring. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0020] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0021] The motorcycle brake assembly outer circle fixing device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0022] Example 1: An embodiment of the present application provides an outer circle fixing device for a motorcycle brake assembly, including a cylinder 1 and a support column 2, and also includes a first-level lifting component 3, a second-level lifting component 4, a pair of clamping claws 5, a lifting cylinder 6, and a lifting chamber 7. The lifting chamber 7 is arranged in the support column 2, and a through hole 8 is provided on the top. The first-level lifting component 3 is lifted and installed in the support column 2 by the cylinder 1, and the second-level lifting component 4 is floatingly installed on the top of the first-level lifting component 3 through an elastic member 10. A pair of clamping claws 5 are movably installed on the top of the second-level lifting component 4, the upper end is bent and can be opened outward, and the lower end is transmission-connected to the inner wall of the lifting chamber 7. A supporting disc 9 is provided on the top of the lifting cylinder 6, and the inner circumferential wall is linked to the first-level lifting component 3.

[0023] like Figures 1 to 3As shown, due to the adoption of the above-mentioned structure, when the motorcycle brake assembly needs to be fixed, it is placed on the supporting disc 9, and the cylinder 1 drives the first-stage lifting component 3 to rise, and the first-stage lifting component 3 drives the lifting cylinder 6 to rise, and at the same time drives the second-stage lifting component 4 to rise. During the rising process of the second-stage lifting component 4, the lower end of the clamping jaw 5 opens outward under the action of the linkage component 53. After the upper end of the clamping jaw 5 is located above the top surface of the brake assembly, the first-stage lifting component 3 continues to rise. At this time, the elastic member 10 is compressed, the second-stage lifting component 4 descends relative to the first-stage lifting component 3, the clamping jaw 5 remains open, the lifting cylinder 6 continues to rise, and the supporting disc 9 cooperates with the upper end of the clamping jaw 5 to clamp and fix the brake assembly, thereby achieving a stable and automatic fixing effect.

[0024] Example 2: The difference from Example 1 is that, in this embodiment, in addition to the structural features of the aforementioned embodiment, 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 mounted on the top end of the piston rod 11 of the cylinder 1, and a protrusion 32 is fixed 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.

[0025] In this embodiment of the present application, the number of the protrusions 32 , the inner vertical grooves 33 and the outer vertical grooves 34 is at least three and they correspond one to one.

[0026] like Figures 2 to 4 As shown, due to the adoption of the above-mentioned 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 first-level 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.

[0027] Example 3: The difference from Example 2 is that, in this embodiment, in addition to the structural features of the aforementioned embodiment, the secondary lifting assembly 4 includes a sleeve 41, a ring 42 and a twisted shaft 43. The sleeve 41 is slidably installed in the through hole 8 along its own axis, and the ring 42 is slidably installed in the lifting chamber 7 along the axis of the sleeve 41. The ring 42 is fixed to the bottom of the sleeve 41, and both ends of the twisted shaft 43 are fixed to the inner wall of the sleeve 41. The middle parts of a pair of clamps 5 are rotatably installed on the twisted shaft 43 through a connecting ring 44.

[0028] In this embodiment of the present application, a semicircular groove 441 is provided on the connecting ring 44, which is concentric with the axis of the twist shaft 43. A convex plate 442 is fixed on the adjacent end faces of the two connecting rings 44. Each convex plate 442 is slidably inserted into the semicircular groove 441 on the relative connecting ring 44. A reset spring 443 is provided between the corresponding convex plate 442 and one end of the semicircular groove 441, which is used to drive the top ends of a pair of clamping jaws 5 to close.

[0029] In this embodiment of the present application, the clamp 5 includes a transmission section 51 and a pressing section 52 that are interconnected. A circular 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 transmission-connected to the inner wall of the installation cavity through a linkage assembly 53.

[0030] like Figures 3 to 7 As shown, due to the adoption of the above-mentioned structure, when the secondary lifting assembly 4 rises, the sleeve 41 slides in the through hole 8, the ring 42 slides in the lifting chamber 7, and the clamping jaw 5 rotates around the twist shaft 43 through the connecting ring 44. The convex plate 442 on the connecting ring 44 slides in the semicircular groove 441. The reset spring 443 can keep the top end of the clamping jaw 5 in a closing trend. When the secondary lifting assembly 4 rises, the lower end of the transmission section 51 drives the clamping jaw 5 to rotate around the twist shaft 43 under the action of the linkage assembly 53, and the pressing section 52 opens outward, which is convenient for clamping the brake assembly. The structural design is ingenious and the operation is reliable.

[0031] Example 4: The difference from Example 3 is that, in this embodiment, in addition to the structural features of the aforementioned embodiment, the linkage assembly 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 chamber 7, and each transmission rod 532 is respectively fixed at the bottom end of each clamping claw 5, and the end of each transmission rod 532 is respectively slidably installed in the corresponding 31, and the top end of 31 is inclined toward the central axis of the lifting cylinder 6.

[0032] In this embodiment of the present application, a groove 61 corresponding to the pair of transmission grooves 531 is formed on the inner wall of the lifting cylinder 6 .

[0033] like Figures 3 to 5 As shown, due to the adoption of the above-mentioned structure, when the secondary lifting assembly 4 rises, the transmission rod 532 at the bottom end of the clamping jaw 5 slides in 31. Since the top end of 31 is inclined toward the central axis, the transmission rod 532 drives the clamping jaw 5 to rotate around the twist shaft 43 during the sliding process, so that the pressing section 52 opens outward, realizing the automatic opening action of the clamping jaw 5. The groove 61 on the inner wall of the lifting cylinder 6 provides a movable space for the transmission rod 532, avoiding interference between structures.

[0034] Example 5: The difference from Example 4 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the elastic member 10 includes a pair of sleeves 101, a pair of slide rods 102 and a pair of pre-tightening springs 104. The pair of sleeves 101 are symmetrically fixed on the top surface of the first-stage lifting component 3, and a pair of slide rods 102 are slidably installed in each sleeve 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 second-stage lifting component 4, and a pair of pre-tightening 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 second-stage lifting component 4 and the top end of the sleeve 101.

[0035] like Figures 3 to 5 As shown, due to the adoption of the above-mentioned structure, the elastic member 10 provides floating support for the secondary lifting assembly 4. When the primary lifting assembly 3 rises to a certain extent, the secondary lifting assembly 4 is subjected to resistance, the slide rod 102 slides in the shaft sleeve 101, and the preload spring 104 is compressed, thereby realizing the descent of the secondary lifting assembly 4 relative to the primary lifting assembly 3, so that the clamping jaws 5 remain in an open state. At the same time, the elastic force of the preload spring 104 ensures the clamping force of the clamping jaws 5 and the supporting disc 9 on the brake assembly, thereby improving the reliability of the fixation.

[0036] Example 6: The difference from Example 5 is that, in this embodiment, in addition to the structural features of the aforementioned embodiment, the supporting disc 9 is provided with grooves 91 spaced circumferentially, and the top of the support column 2 is fixed with plugs 21 spaced circumferentially, and each plug 21 slides in conjunction with the corresponding groove 91.

[0037] like Figures 1 to 2 As shown, due to the adoption of the above-mentioned structure, during the lifting process of the lifting cylinder 6, the insert block 21 slides in the notch 91, guiding the lifting cylinder 6, ensuring the smooth lifting and lowering of the supporting disc 9, avoiding deviation during the lifting process, and further improving the accuracy of fixing the brake assembly.

[0038] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0039] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A motorcycle brake assembly outer circle fixing device, comprising a cylinder and a support column, characterized in that: It also includes a first-level lifting component, a second-level lifting component, a pair of clamping claws, a lifting cylinder, and a lifting chamber. The lifting chamber is arranged in a support column and has a through hole on the top. The first-level lifting component is installed in the support column by a cylinder. The second-level lifting component is floatingly installed on the top of the first-level lifting component through an elastic member. A pair of clamping claws are movably installed on the top of the second-level lifting component, the upper ends are bent and can be opened outward, and the lower ends are transmission-connected to the inner wall of the lifting chamber. A supporting disc is provided on the top of the lifting cylinder, and the inner circumferential wall is linked to the first-level lifting component.

2. A motorcycle brake assembly outer circle fixing device according to claim 1, characterized in that: The first-stage lifting assembly includes a lifting plate, a protrusion, an inner vertical groove and an outer vertical groove. The lifting plate is fixedly mounted on the top end of the piston rod of the cylinder, and a 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 is slidably fitted with the inner vertical groove and the outer vertical groove.

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

4. A motorcycle brake assembly outer circle fixing device according to any one of claims 1-3, wherein the secondary lifting component includes a sleeve, a ring and a twisted shaft, the sleeve is slidably installed in the through hole along its own axis, 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, the two ends of the twisted shaft are fixedly connected to the inner circumferential wall of the sleeve, and the middle parts of a pair of the clamps are rotatably installed on the twisted shaft through a connecting ring.

5. A motorcycle brake assembly outer circle fixing device according to claim 4, wherein a semicircular groove concentric with the axis of the twist shaft is provided on the connecting ring, and convex plates are fixed on the adjacent end faces of the two connecting rings, and each convex plate is slidably inserted into the semicircular groove on the relative connecting ring, and a return spring is provided between the corresponding convex plate and one end of the semicircular groove to drive the top ends of a pair of clamping jaws to close.

6. A motorcycle brake assembly outer circle fixing device according to claim 4, wherein the clamping claw includes a transmission section and a pressing section that are connected to each other, a circular 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, and the lower end of the transmission section is transmission-connected to the inner wall of the installation cavity through a linkage component.

7. A motorcycle brake assembly outer circle fixing device according to claim 5, wherein 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 of the transmission rods is respectively fixed at the bottom end of each clamping claw, and the end of each transmission rod is respectively slidably installed in the corresponding transmission groove, and the top end of the transmission groove is inclined toward the central axis of the lifting cylinder.

8. A motorcycle brake assembly outer circle fixing device according to claim 7, wherein the inner wall of the lifting cylinder is provided with grooves corresponding to the pair of transmission grooves.

9. A motorcycle brake assembly outer circle fixing device according to any one of claims 1-3, wherein the elastic member includes a pair of sleeves, a pair of slide rods and a pair of pre-tightening springs, the pair of sleeves are symmetrically fixed on the top surface of the first-level lifting component, the pair of slide rods are respectively slidably installed in each sleeve, and a baffle is fixed at the bottom end, the top end of the slide rod is fixedly connected to the bottom surface of the second-level lifting component, and the pair of pre-tightening springs are respectively sleeved on the outside of each slide rod, and the top and bottom ends are respectively abutted against the bottom surface of the second-level lifting component and the top end of the sleeve.

10. A motorcycle brake assembly outer circle fixing device according to any one of claims 1 to 3, characterized in that: The supporting disc is provided with slots at intervals along the circumferential direction, and the top end of the support column is fixed with inserting blocks at intervals along the circumferential direction, and each inserting block is slidably matched with the corresponding slot.

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