A kind of automobile clutch disc hub polishing equipment

Abstract

The utility model discloses a kind of for automobile clutch disc hub polishing equipment in the technical field of disc hub polishing, including support platform, the inside of support platform is equipped with rotary adjusting assembly, the top of rotary adjusting assembly two sides is provided with disc hub body, the outside of support platform is connected with first motor, the inner wall of support platform two sides is also respectively equipped with abrasive belt polishing assembly, two groups of abrasive belt polishing assembly are located in the top of two groups of disc hub body, through the suspension buffer type design of abrasive belt polishing assembly, i.

Description

Technical Field

[0001] This utility model relates to the field of disc and hub grinding technology, and in particular to a grinding device for automotive clutch discs and hubs. Background Technology

[0002] The clutch disc hub is a core structural component of the clutch driven disc assembly, serving as a crucial connection link between the driven disc friction plate assembly and the transmission input shaft. It is typically located at the center of the clutch driven disc and contains splined holes that match the transmission input shaft, enabling reliable power transmission through a splined connection. During the manufacturing process of the automotive clutch disc hub, its outer surfaces on both sides require precision grinding to ensure flatness and smoothness, thereby guaranteeing the assembly accuracy of the clutch driven disc and the stability of the entire vehicle's transmission system.

[0003] However, existing disc surface grinding equipment has significant shortcomings in use: the abrasive belt assembly used for grinding the outer surface of the disc lacks an effective buffer adjustment structure, causing the abrasive belt to easily make hard contact or bump when it comes into contact with the disc surface. When the abrasive belt impacts the disc surface, it may form scratches, indentations, or localized over-grinding on the outer surface, which not only damages the surface flatness of the disc but may also affect the smoothness and processing accuracy of the inner wall surface, and even cause irreparable quality defects. At the same time, because traditional equipment lacks controllability in abrasive belt tension and contact pressure, the abrasive belt is prone to slack or uneven localized force during processing, resulting in poor disc surface consistency and low repeatability accuracy. These problems are particularly prominent in mass production, seriously affecting processing efficiency and parts yield.

[0004] Therefore, there is an urgent need for a dedicated grinding machine for automotive clutch discs that can achieve buffer adjustment, tension control, and stable contact during the grinding process to improve processing quality and production reliability. Based on this, we propose a grinding machine for automotive clutch discs. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a grinding equipment for automotive clutch disc hubs, which can solve the problems of existing disc hub surface grinding equipment, such as lack of buffer adjustment of the sanding belt, hard contact or impact causing scratches, indentations and excessive grinding on the outer surface, and poor surface consistency and low repeat processing accuracy caused by uncontrollable sanding belt tension and contact pressure.

[0007] To solve the above technical problems, this utility model provides a grinding device for automotive clutch disc hubs, which adopts the following technical solution: it includes a support platform, a rotation adjustment assembly is installed inside the support platform, a disc hub body is provided on both sides of the top of the rotation adjustment assembly, a first motor is connected to both sides of the outer side of the support platform, and a sanding belt grinding assembly is installed on both sides of the inner wall of the support platform, with the two sets of sanding belt grinding assemblies located directly above the two sets of disc hub bodies; The belt abrasive assembly includes a metal housing. Inside the metal housing, a first transmission wheel is rotatably connected via a bearing. The first transmission wheel is connected to the output end of a first motor. A grinding component is installed at the bottom of the metal housing. A grinding belt is connected between the grinding component and the first transmission wheel. Tension adjustment components are also provided on both sides of the inner wall of the metal housing near the grinding belt.

[0008] Optionally, the rotation adjustment assembly includes a tray frame, a second motor connected to the bottom of the tray frame, a first gear disk rotatably connected to the top of the tray frame via a bearing seat, the first gear disk being drivenly connected to the output end of the second motor, second gear disks rotatably connected to both sides of the top of the tray frame via bearing seats, the two sets of second gear disks being meshed with the first gear disk, and a placement plate being connected to the top of each of the two sets of second gear disks, the placement plate matching the structure of the disk hub body.

[0009] Optionally, the inner wall of the metal shell is provided with a first groove at both ends, and two sets of damping slide rods are connected inside the two sets of first grooves. A first compression spring is also sleeved on the outside of the damping slide rod.

[0010] Optionally, the tension adjustment component includes a second groove formed on both sides of the inner wall of the metal housing, an adjustment rod slidably connected to the middle of the second groove, a tension wheel installed at one end of the adjustment rod, the tension wheel and the abrasive belt being in rolling contact, and a second compression spring sleeved on the outer side of the end of the adjustment rod near the tension wheel.

[0011] Optionally, the polishing component includes a polishing frame, an inner plate is installed on the top of the polishing frame, two sets of damping holes are opened on both sides of the top of the inner plate, two sets of abrasive belt grooves are opened between the inner plate and the polishing frame, the abrasive belt grooves are matched with the structure of the polishing abrasive belt, and a second transmission wheel is rotatably connected to the bottom of the polishing frame through a bearing.

[0012] Optionally, the inner plate matches the first groove structure, and the damping hole and the damping slide rod are in a sliding damping fit.

[0013] In summary, this utility model has at least one of the following beneficial effects: 1. In this utility model, the synchronous and uniform rotation drive of the two sets of disc bodies can be realized through the rotation adjustment component inside the support platform. Specifically, the first gear disc is driven by the second motor, and the two sets of second gear discs and the placement disc are driven to rotate synchronously through gear meshing. This can ensure the coaxiality and stability of the disc bodies during the grinding process of the sanding belt, and realize high-precision positioning and continuous uniform grinding of the discs on both sides.

[0014] 2. In this utility model, through the suspended buffer design of the sanding belt assembly, namely the elastic floating structure composed of the inner plate of the sanding component, the damping slide rod in the metal shell, and the first compression spring, the inner plate can slide along the damping slide rod axially and compress the first compression spring when the sanding belt contacts the outer surface of the disc body, thereby realizing flexible buffering and adaptive adjustment of the sanding pressure, effectively absorbing the impact caused by the slight radial runout or surface unevenness of the disc body, and realizing the transformation from rigid impact to elastic following processing mode.

[0015] 3. In this utility model, the adjusting linkage in the tensioning adjustment component, under the action of the second compression spring, can push the tensioning wheel to apply constant elastic pressure to the grinding belt, which can maintain the stable tension of the grinding belt during operation and avoid uneven local grinding caused by slack or excessive tightness. At the same time, the linkage of the floating grinding component's up and down displacement and damping vibration absorption ensures that the grinding belt always acts on the surface of the disc body with a constant and gentle contact pressure, ultimately achieving a high-precision, uniform and safe grinding effect, effectively reducing the risk of scratches, indentations and over-grinding, and improving processing quality and repeatability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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; Figure 2 This is a schematic diagram showing the disassembled sanding belt assembly of this utility model; Figure 3 This is a schematic diagram of the rotary adjustment component structure of this utility model; Figure 4 This is a schematic diagram of the tension adjustment component of this utility model; Figure 5 This is a schematic diagram of the grinding component structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Support platform; 2. Rotation adjustment assembly; 21. Tray frame; 22. Second motor; 23. First gear disc; 24. Second gear disc; 25. Placement tray; 3. Hub body; 4. First motor; 5. Belt sanding assembly; 51. Metal shell; 511. First groove; 512. Damping slide bar; 513. First compression spring; 52. First transmission wheel; 53. Sanding component; 531. Polishing frame; 532. Inset plate; 533. Damping hole; 534. Belt sanding groove; 535. Second transmission wheel; 54. Sanding belt; 55. Tension adjustment component; 551. Second groove; 552. Adjustment link; 553. Tensioning wheel; 554. Second compression spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Refer to Figures 1 to 5 This utility model provides an embodiment of a grinding device for automotive clutch disc hubs, comprising a support platform 1, a rotation adjustment assembly 2 installed inside the support platform 1, and disc hub bodies 3 arranged on both sides of the top of the rotation adjustment assembly 2. A first motor 4 is connected to both sides of the outer side of the support platform 1. A sanding belt grinding assembly 5 is also installed on both sides of the inner wall of the support platform 1, with both sets of sanding belt grinding assemblies 5 located directly above the two sets of disc hub bodies 3. Each sanding belt grinding assembly 5 includes a metal shell 51, with a first transmission wheel 52 rotatably connected inside the metal shell 51 via bearings. The first transmission wheel 52 is connected to the output end of the first motor 4. A grinding component 53 is installed at the bottom of the metal shell 51. A grinding belt 54 is connected between the grinding belt 53 and the first transmission wheel 52. Tension adjustment components 55 are respectively provided on both sides of the inner wall of the metal shell 51 near the grinding belt 54. Through the coordinated use of the metal shell 51, the first transmission wheel 52, the grinding component 53, the grinding belt 54 and the tension adjustment component 55, the grinding belt 54 can be made to circulate at high speed on the grinding component 53, ensuring continuous contact and uniform grinding between the grinding belt 54 and the surface of the disc body 3, and achieving a smooth and flat outer surface of the disc body 3. At the same time, the tension adjustment component 55 maintains a constant tension on the grinding belt 54, avoiding slack or uneven local force, and achieving high precision and stability in the processing.

[0021] The rotation adjustment assembly 2 includes a tray frame 21. A second motor 22 is connected to the bottom of the tray frame 21, and a first gear disk 23 is rotatably connected to the top of the tray frame 21 via a bearing seat. The first gear disk 23 is connected to the output end of the second motor 22. Second gear disks 24 are rotatably connected to both sides of the top of the tray frame 21 via bearing seats. The two sets of second gear disks 24 are meshed with the first gear disks 23. Placement disks 25 are respectively connected to the top of the two sets of second gear disks 24. The placement disks 25 are structurally matched with the hub body 3. Through the coordinated operation of the tray frame 21, the second motor 22, the first gear disk 23, the second gear disk 24, and the placement disks 25 in the rotation adjustment assembly 2, precise positioning and synchronous rotation drive of the hub body 3 can be achieved, ensuring that the two sides of the hub body 3 rotate at a uniform speed during grinding, avoiding eccentricity or wobbling, and achieving the desired rotation of the hub body. 3. Uniform grinding and high-precision machining of the outer surface, while ensuring the stability and repeatability of the machining process. The inner wall of the metal shell 51 has a first groove 511 at both ends. The interior of the two sets of first grooves 511 is connected to two sets of damping slide rods 512. The outer side of the damping slide rods 512 is also fitted with a first compression spring 513. The metal shell 51 can form an elastic buffer system through the cooperation between the first grooves 511, the damping slide rods 512 and the first compression springs 513. When the sanding belt 54 contacts the surface of the disc body 3, the sanding belt assembly 5 can slide along the damping slide rods 512 and compress the first compression springs 513, absorbing the instantaneous impact force generated during the grinding process. This achieves flexible adjustment and adaptive buffering of the grinding pressure, effectively reducing the risk of scratches, indentations and over-grinding on the surface of the disc body 3, and improving the processing flatness and surface finish.

[0022] The tension adjustment component 55 includes a second groove 551 formed on both sides of the inner wall of the metal housing 51. An adjustment rod 552 is slidably connected to the middle of the second groove 551. A tension wheel 553 is installed at one end of the adjustment rod 552. The tension wheel 553 has rolling contact with the abrasive belt 54. A second compression spring 554 is also sleeved on the outer side of the end of the adjustment rod 552 near the tension wheel 553. Through the cooperation of the second groove 551, the adjustment rod 552, the tension wheel 553, and the second compression spring 554, the tension adjustment component 55 can apply a constant and adjustable elastic tension to the abrasive belt 54, so that the abrasive belt... During operation, the grinding belt 54 maintains stable tension and continuous rolling contact with the surface of the hub body 3, ensuring uniform force and smooth operation. This avoids uneven grinding caused by slackness or excessive tightness, guaranteeing uniform grinding and high-precision machining results on the outer surface of the hub body 3. The grinding component 53 includes a polishing frame 531, with an inner plate 532 mounted on the top of the polishing frame 531. Two sets of damping holes 533 are provided on both sides of the top of the inner plate 532. Two sets of abrasive belt grooves 534 are provided between the inner plate 532 and the polishing frame 531. The abrasive belt grooves 534 are matched with the structure of the grinding belt 54. The bottom of the polishing frame 531 also has... The bearing is rotatably connected to a second transmission wheel 535. The grinding component 53, through the cooperation of the polishing frame 531, the inner plate 532, the damping hole 533, the abrasive belt groove 534, and the second transmission wheel 535, can achieve stable guidance and high-speed circulation of the grinding belt 54, ensuring that the grinding belt 54 continuously and evenly contacts the surface of the hub body 3 along a predetermined trajectory. Through the damping hole 533 and subsequent damping slide bar 512, additional buffering and vibration absorption effects are provided, achieving flexible grinding of the hub body 3 surface by the grinding belt 54, ensuring the flatness, smoothness, and high precision of the processing. The inner plate 532 and the first concave... The groove 511 is structurally matched, and the damping hole 533 and the damping slide rod 512 are in sliding damping engagement. Through the structural matching of the inner plate 532 and the first groove 511 in the metal shell 51, and the structural design of the sliding damping engagement between the damping hole 533 and the damping slide rod 512, the grinding component 53 can slide smoothly along the axial direction of the damping slide rod 512 when the grinding belt 54 contacts the surface of the hub body 3, providing controlled buffering and damping effects, realizing flexible adjustment of grinding pressure and adaptive vibration absorption, ensuring uniform grinding of the outer surface of the hub body 3, improving surface finish, and effectively reducing the risk of scratches, indentations and over-grinding.

[0023] Working Principle: The automotive clutch disc hub grinding equipment designed in this scheme achieves precise positioning and synchronous rotation drive of the disc hub body 3 through the rotation adjustment component 2 inside the support platform 1. Specifically, the second motor 22 drives the first gear disc 23 to rotate, which in turn drives the two sets of second gear discs 24 and the top placement disc 25 to rotate synchronously through gear meshing transmission, so that the disc hub body 3 to be ground on both sides maintains uniform rotation. This ensures the coaxiality and stability of the disc hub body 3 during the grinding process of the sanding belt 54. The core of the sanding belt grinding component 5 lies in its suspended buffer design: the first motor 4 drives the first transmission wheel 52 to rotate, and the belt... The abrasive belt 54 rotates at high speed on the second drive wheel 535 of the abrasive component 53 to continuously abrade the outer surface of the disc body 3. The abrasive component 53 can form an elastic floating structure through the inner plate 532, the damping slide rod 512 provided in the metal shell 51, and the first compression spring 513. When the abrasive belt 54 contacts the outer surface of the disc body 3, the inner plate 532 can slide along the damping slide rod 512 axially and compress the first compression spring 513, which can realize flexible buffering and adaptive adjustment of the abrasive pressure and effectively absorb the impact caused by the slight radial runout or surface unevenness of the disc body 3.

[0024] The automotive clutch disc hub grinding equipment designed in this scheme, through the adjusting linkage 552 in the tension adjusting component 55, under the action of the second compression spring 554, can push the tensioning wheel 553 to apply constant elastic pressure to the grinding belt 54, so that the grinding belt 54 maintains stable tension during operation, avoiding uneven local grinding caused by slack or excessive tightness. This linkage structure, through the up and down displacement and damping vibration absorption of the floating grinding component 53, can transform the traditional rigid impact into elastic following processing, so that the grinding belt 54 always acts on the surface of the disc body 3 with constant and gentle contact pressure, achieving a high-precision, uniform and safe grinding effect, while effectively reducing the risk of scratches, indentations and over-grinding, and improving processing quality and repeatability.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding device for automotive clutch disc hubs, comprising a support platform (1), characterized in that: The support platform (1) is equipped with a rotation adjustment component (2) inside. The top two sides of the rotation adjustment component (2) are provided with a hub body (3). The outer two sides of the support platform (1) are connected to a first motor (4). The inner two sides of the support platform (1) are also equipped with sanding belt grinding components (5). The two sets of sanding belt grinding components (5) are located directly above the two sets of hub bodies (3). The belt abrasive assembly (5) includes a metal shell (51), inside which a first transmission wheel (52) is rotatably connected via a bearing. The first transmission wheel (52) is connected to the output end of a first motor (4). A grinding component (53) is installed at the bottom of the metal shell (51). A grinding belt (54) is connected between the grinding component (53) and the first transmission wheel (52). Tension adjustment components (55) are also provided on both sides of the inner wall of the metal shell (51) near the grinding belt (54).

2. The grinding equipment for automotive clutch disc hubs according to claim 1, characterized in that: The rotation adjustment assembly (2) includes a tray frame (21), the bottom of which is connected to a second motor (22), and the top of which is rotatably connected to a first gear disk (23) via a bearing seat. The first gear disk (23) is connected to the output end of the second motor (22) via a transmission connection. The top two sides of the tray frame (21) are rotatably connected to second gear disks (24) via bearing seats. The two sets of second gear disks (24) are meshed with the first gear disks (23). The tops of the two sets of second gear disks (24) are respectively connected to placement disks (25), and the placement disks (25) are matched with the structure of the disk hub body (3).

3. The grinding equipment for automotive clutch disc hubs according to claim 2, characterized in that: The inner wall of the metal shell (51) is provided with a first groove (511) at both ends. The two sets of first grooves (511) are connected to two sets of damping slide rods (512). The outer side of the damping slide rods (512) is also fitted with a first compression spring (513).

4. The grinding equipment for automotive clutch disc hubs according to claim 3, characterized in that: The tension adjustment component (55) includes a second groove (551) formed on both sides of the inner wall of the metal shell (51). An adjustment rod (552) is slidably connected to the middle of the second groove (551). A tension wheel (553) is installed at one end of the adjustment rod (552). The tension wheel (553) and the abrasive belt (54) are in rolling contact. A second compression spring (554) is also sleeved on the outer side of the end of the adjustment rod (552) near the tension wheel (553).

5. The grinding equipment for automotive clutch disc hubs according to claim 4, characterized in that: The polishing component (53) includes a polishing frame (531), an inner plate (532) is installed on the top of the polishing frame (531), two sets of damping holes (533) are opened on both sides of the top of the inner plate (532), two sets of abrasive belt through grooves (534) are opened between the inner plate (532) and the polishing frame (531), the abrasive belt through grooves (534) are matched with the structure of the polishing abrasive belt (54), and a second transmission wheel (535) is rotatably connected to the bottom of the polishing frame (531) through a bearing.

6. The grinding equipment for automotive clutch disc hubs according to claim 5, characterized in that: The inner plate (532) is matched with the structure of the first groove (511), and the damping hole (533) and the damping slide (512) are in sliding damping fit.

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