Automotive clutch hub burr removal device

Abstract

This utility model belongs to the technical field of grinding devices and discloses a burr removal device for automotive clutch hubs. It includes a grinding frame, with a feeder installed at the inner end of the frame. Narrow-faced chains are symmetrically mounted on both sides of the feeder. The upper ends of the two narrow-faced chains are sequentially placed with clutch hub parts to be processed. Limiting plates are symmetrically arranged on both sides of the upper ends of the narrow-faced chains. This solution uses a single feeder to drive the narrow-faced chains, precisely supporting the two edges of the clutch hub parts to be processed for stable transport. It eliminates the need for multiple drive motors on the transport path, significantly reducing initial equipment investment. The limiting plates provide lateral protection, effectively preventing workpiece displacement. Once the workpiece is in place, only two power components—a hydraulic push rod and a first motor—drive the upper and lower clamping panels to move synchronously, achieving stable clamping and directly meeting the rotation requirements during workpiece processing, significantly improving overall production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding devices, specifically a device for removing burrs from automotive clutch hubs. Background Technology

[0002] As a key load-bearing component in the automotive transmission system, the clutch hub is prone to burrs on its edges and connecting parts after casting, forging, or machining. If these burrs are not removed in a timely and effective manner, they will directly affect the assembly accuracy of the clutch hub and aggravate component wear during the assembly process.

[0003] For example, CN114770269A discloses a deburring fixture for machining the hub of an electromagnetic clutch for air conditioning in a new energy vehicle. The fixture includes a frame and a grinding assembly, with the grinding assembly mounted on the frame. The frame includes a rotary table with multiple first slide rails. It also includes a fixing device comprising grippers and a linear drive assembly. Multiple grippers correspond one-to-one with the first slide rails. Each gripper includes a first mounting base, a fixed shaft, a chuck, and a torsion spring. The first mounting base is slidably mounted on the first slide rail. This application solves the shortcomings of existing deburring fixtures, which either have unstable hub fixing or are overly complex and costly.

[0004] Currently, the industry typically uses a conveyor belt and multi-motor drive to automate the deburring process for clutch hubs. This requires multiple independent motors to be spaced along the conveyor belt to lift the clutch hub and work with the grinding components to remove the burrs. However, the setup of multiple independent motors and supporting lifting mechanisms significantly increases the initial investment cost of the equipment, increases the number of potential equipment failures, and makes the maintenance process cumbersome and time-consuming, thus hindering the improvement of overall production efficiency. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a device for removing burrs from automotive clutch hubs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive clutch hub burr removal device, comprising a grinding frame, a material conveyor installed at the inner end of the grinding frame, narrow-faced chains symmetrically mounted on both sides of the material conveyor, clutch hub parts to be processed being placed sequentially on the upper ends of the two narrow-faced chains, and limiting plates symmetrically arranged on both sides of the upper end of the narrow-faced chains, with openings respectively opened in the middle of the two limiting plates at their close-to-each-other ends; A hydraulic push rod is fixedly connected to the lower inner wall of the grinding frame, and a first motor is fixedly connected to the upper inner wall of the grinding frame. Clamping panels are respectively installed at the output ends of the hydraulic push rod and the first motor. A second motor is fixedly connected to the inner side wall of the grinding frame, and a grinding head is installed at the output end of the second motor.

[0007] Preferably, the clamping panel located on the upper side and the output end of the first motor are fixedly connected by a coupling, and the clamping panel located on the lower side and the hydraulic push rod are rotatably connected.

[0008] Preferably, a dust suction pipe cover is fixedly connected to the upper inner wall of the grinding frame, the dust suction pipe cover is located directly above the grinding head, and the grinding head and the edge of the clutch hub to be processed make contact with each other during grinding.

[0009] Preferably, an auxiliary bracket is fixedly connected to the inner side wall of the polishing frame. The auxiliary bracket is located between the dust suction pipe cover and the polishing head. A plurality of horizontally equidistant back-sweeping brushes are fixedly connected to the lower end of the auxiliary bracket.

[0010] Preferably, the working surfaces of the back-sweeping brush and the grinding head are in contact with each other, and the lower end of the limiting strip is provided with multiple universal ball grooves.

[0011] Preferably, the plurality of universal ball grooves are evenly distributed, and the inner end of each universal ball groove is rotatably connected to a universal ball block.

[0012] Preferably, the clutch hub to be processed is located between the narrow-face chain and the limiting strip, and the clutch hub to be processed and the plurality of universal ball blocks are in rotational contact with each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a single conveyor to drive a narrow-faced chain, precisely supporting the two edges of the clutch hub to achieve stable transport. This eliminates the need for multiple drive motors along the transport path, significantly reducing initial equipment investment. Combined with limiting plates, it provides lateral protection, effectively preventing workpiece deviation during transport. Once the workpiece is in place, only two power components—a hydraulic push rod and a first motor—drive the upper and lower clamping panels to move synchronously, achieving stable clamping. The rotating connection between the lower clamping panel and the hydraulic push rod directly meets the rotational requirements during workpiece processing, reducing potential failure points and significantly improving overall production efficiency.

[0014] By activating the dust suction hood directly above the grinding head during operation, the dust and debris generated during grinding can be quickly sucked away, preventing accumulation that could affect processing quality. In conjunction with the back-sweeping brush, which is in continuous contact with the working surface of the grinding head, the brush promptly scrapes away any attached burrs and debris, ensuring the grinding head's operational efficiency.

[0015] By setting a universal ball block in the universal ball groove at the lower end of the limiting strip, a rolling contact is formed with the workpiece surface, which not only helps the workpiece to be accurately positioned to the processing station, but also greatly reduces the conveying friction resistance, prevents the workpiece surface from being scratched, and ensures the stability of the material conveying process and the integrity of the workpiece appearance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the grinding frame of this utility model; Figure 2 This is a schematic diagram of the internal structure of the grinding frame of this utility model; Figure 3 This utility model Figure 2 Enlarged schematic diagram of partial truncation at point A in the middle; Figure 4 This is a schematic diagram of the anti-sweeping brush of this utility model; Figure 5 This is a schematic diagram of the universal ball block of this utility model.

[0017] In the diagram: 1. Conveyor; 2. Narrow-faced chain; 3. Grinding frame; 4. Hydraulic push rod; 5. First motor; 6. Clamping panel; 7. Clutch hub to be processed; 8. Limiting strip; 9. Opening; 10. Dust suction pipe cover; 11. Grinding head; 12. Second motor; 13. Auxiliary support; 14. Back-sweeping brush; 15. Universal ball joint groove; 16. Universal ball block. Detailed Implementation

[0018] 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.

[0019] like Figures 1 to 5 As shown, this utility model provides a burr removal device for automotive clutch hubs, including a grinding frame 3. A material conveyor 1 is installed at the inner end of the grinding frame 3. Narrow-faced chains 2 are symmetrically mounted on both sides of the material conveyor 1. The clutch hub parts 7 to be processed are placed sequentially on the upper ends of the two narrow-faced chains 2. Limiting plates 8 are symmetrically arranged on both sides of the upper end of the narrow-faced chains 2. Openings 9 are respectively opened in the middle of the two limiting plates 8 that are close to each other. A hydraulic push rod 4 is fixedly connected to the lower inner wall of the grinding frame 3, and a first motor 5 is fixedly connected to the upper inner wall of the grinding frame 3. Clamping panels 6 are respectively installed at the output ends of the hydraulic push rod 4 and the first motor 5. A second motor 12 is fixedly connected to the inner side wall of the grinding frame 3, and a grinding head 11 is installed at the output end of the second motor 12.

[0020] The above scheme is adopted: the conveyor 1 includes a drive motor, a drive sprocket shaft driven by the drive motor, and two narrow chains 2 symmetrically distributed on both sides of the grinding frame 3. The narrow chains 2 are fitted on the drive sprocket shaft and the driven sprocket shaft. The narrow chains 2 are made of high-strength alloy steel, and their width matches the edge thickness of the clutch hub 7 to be processed. They can stably support the clutch hub 7 by contacting only the two sides of the edge of the clutch hub 7 to be processed, avoiding the obstruction of the workpiece processing area by traditional wide conveyors, and leaving sufficient space for subsequent grinding operations. The hydraulic push rod 4 adopts a multi-stage telescopic structure, which, together with the servo drive characteristics of the first motor 5, achieves precise synchronization of the clamping panel 6 through the linkage control of the PLC controller.

[0021] like Figures 2 to 4 As shown, the clamping panel 6 on the upper side and the output end of the first motor 5 are fixedly connected by a coupling, and the clamping panel 6 on the lower side and the hydraulic push rod 4 are rotatably connected. The upper inner wall of the grinding frame 3 is fixedly connected to a dust suction pipe cover 10, which is located directly above the grinding head 11. The grinding head 11 and the edge of the clutch hub 7 to be processed grind each other in contact.

[0022] The above solution is adopted: the lower clamping panel 6 and the hydraulic push rod 4 are rotatably connected by a deep groove ball bearing, and the dust suction pipe cover 10 adopts an inverted trumpet-shaped structure to form a larger negative pressure adsorption range.

[0023] like Figures 1 to 5 As shown, an auxiliary support 13 is fixedly connected to the inner side wall of the grinding frame 3. The auxiliary support 13 is located between the dust suction pipe cover 10 and the grinding head 11. A plurality of horizontally equidistant back-sweeping brushes 14 are fixedly connected to the lower end of the auxiliary support 13. The back-sweeping brushes 14 and the working surface of the grinding head 11 are in contact with each other.

[0024] The above solution involves simultaneously activating the dust suction hood 10 directly above the grinding head 11 during operation. This allows for the rapid removal of grinding debris and dust, preventing accumulation that could affect processing quality. The back-sweeping brush 14 maintains continuous contact with the working surface of the grinding head 11, effectively scraping away burrs and debris adhering to the surface of the grinding head 11 in real time. Furthermore, the back-sweeping brush 14, made of modified polytetrafluoroethylene elastomer, can withstand the frictional heat generated by the high-speed rotation of the grinding head and has a low coefficient of friction, ensuring it won't damage the grinding head while effectively removing debris.

[0025] like Figures 2 to 3 , Figure 5 As shown, the lower end of the limiting strip 8 is provided with multiple universal ball grooves 15, which are evenly distributed. The inner end of the universal ball groove 15 is rotatably connected to a universal ball block 16. The clutch hub 7 to be processed is located between the narrow-face chain 2 and the limiting strip 8, and the clutch hub 7 to be processed and the multiple universal ball blocks 16 are in mutual rotational contact.

[0026] The above solution is adopted: the universal ball groove 15 adopts a hemispherical design, and the inner diameter of the universal ball groove 15 is larger than that of the universal ball block 16. This ensures that the universal ball block 16 can rotate flexibly and avoids loosening and displacement during rotation. Each universal ball groove 15 has a chamfered structure at its opening to prevent the universal ball block 16 from falling off. The universal ball block 16 is made of high-strength engineering plastic material and its surface is polished. It only makes light contact with the surface of the clutch hub 7 to be processed. While achieving guidance and limiting, it transforms traditional sliding friction into rolling friction, thereby reducing the resistance of workpiece conveying.

[0027] Working principle and usage process of this utility model: After the feeder 1 starts, the narrow chain 2 smoothly transports the two side edges of the clutch hub 7 to be processed to the processing station within the grinding frame 3. The limiting strip 8 provides lateral limiting for the clutch hub 7 during the conveying process. When the clutch hub 7 reaches the designated position, the hydraulic push rod 4 pushes the lower clamping panel 6 upward, and the first motor 5 drives the upper clamping panel 6 to move downward synchronously. The two clamping panels 6 cooperate to achieve stable clamping of the clutch hub 7, and the rotatable connection between the lower clamping panel 6 and the hydraulic push rod 4 can meet the requirements of the clutch hub 7 during processing. To meet the rotation requirements, the second motor 12 starts and drives the grinding head 11 to rotate at high speed. The grinding head 11 contacts the edge of the clutch hub 7 to be processed and performs burr removal. It can promptly scrape off the burrs and debris attached to the surface of the grinding head 11 in the opposite direction, improving the efficiency of debris handling. After the grinding is completed, the hydraulic push rod 4 drives the lower clamping panel 6 to reset, and the first motor 5 drives the upper clamping panel 6 to move upward, releasing the clutch hub 7 to be processed. The conveyor 1 continues to operate to send away the processed workpiece, and at the same time, it conveys the next clutch hub 7 to be processed into the station, realizing continuous burr removal operation. During the grinding process, the dust suction pipe cover 10 directly above the grinding head 11 works simultaneously to quickly suck away the debris and dust generated during grinding. The back-sweeping brush 14 can continuously contact the working surface of the grinding head 11. The back-sweeping brush 14 continuously contacts the working surface of the grinding head 11 and scrapes away the burrs and debris attached to the surface of the grinding head 11 in real time, thereby improving the efficiency of debris removal. At the same time, the universal ball block 16 in the universal ball groove 15 at the lower end of the limiting strip 8 makes rotational contact with the surface of the clutch hub 7 to be processed, which not only assists the clutch hub 7 to be processed to move accurately, but also reduces the frictional resistance during conveying, prevents the surface of the clutch hub 7 to be processed from being scratched, and effectively ensures the stability during the material conveying process.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing burrs from a clutch hub of an automobile, comprising a polishing frame (3), an inner end of the polishing frame (3) being provided with a feeding machine (1), characterized in that: The conveyor (1) is symmetrically equipped with narrow-faced chains (2) on both sides. The upper ends of the two narrow-faced chains (2) are sequentially placed with clutch hubs (7) to be processed. Limiting plates (8) are symmetrically arranged on both sides of the upper end of the narrow-faced chains (2). The middle part of the two limiting plates (8) that are close to each other is respectively opened (9). A hydraulic push rod (4) is fixedly connected to the lower inner wall of the grinding frame (3), and a first motor (5) is fixedly connected to the upper inner wall of the grinding frame (3). The output ends of the hydraulic push rod (4) and the first motor (5) are respectively equipped with clamping panels (6). A second motor (12) is fixedly connected to the inner side wall of the grinding frame (3), and a grinding head (11) is installed at the output end of the second motor (12).

2. The automotive clutch hub burr removal device of claim 1, wherein: The clamping panel (6) located on the upper side and the output end of the first motor (5) are fixedly connected by a coupling, and the clamping panel (6) located on the lower side and the hydraulic push rod (4) are rotatably connected.

3. The automotive clutch hub burr removal device of claim 1, wherein: The upper inner wall of the grinding frame (3) is fixedly connected to a dust suction pipe cover (10), which is located directly above the grinding head (11). The grinding head (11) and the edge of the clutch hub (7) to be processed are ground and contacted each other.

4. The automotive clutch hub burr removal device of claim 3, wherein: An auxiliary bracket (13) is fixedly connected to the inner wall of the polishing frame (3). The auxiliary bracket (13) is located between the dust suction pipe cover (10) and the polishing head (11). A plurality of horizontally equidistant back-sweeping brushes (14) are fixedly connected to the lower end of the auxiliary bracket (13).

5. The automotive clutch hub burr removal device of claim 4, wherein: The working surfaces of the back-sweeping brush (14) and the grinding head (11) are in contact with each other, and the lower end of the limiting strip (8) is provided with multiple universal ball grooves (15).

6. The automotive clutch hub burr removal device of claim 5, wherein: The multiple universal ball grooves (15) are evenly distributed among each other, and the inner end of each universal ball groove (15) is rotatably connected to a universal ball block (16).

7. The automotive clutch hub burr removal device of claim 6, wherein: The clutch hub (7) to be processed is located between the narrow-face chain (2) and the limiting strip (8), and the clutch hub (7) to be processed and the multiple universal ball blocks (16) rotate and contact each other.

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