A surface polishing apparatus for cast aluminum end caps

By employing a three-jaw chuck for precise clamping, a lifting push rod for adjustment, a protective cover for splash prevention, and a multi-dimensional linkage system, the safety and precision issues of the cast aluminum end cap polishing equipment have been resolved, thereby improving the polishing quality and efficiency of the cast aluminum end caps.

CN224347593UActive Publication Date: 2026-06-12CHANGZHOU XIA SANG ELECTROMECHANICAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU XIA SANG ELECTROMECHANICAL CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-12

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  • Figure CN224347593U_ABST
    Figure CN224347593U_ABST
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Abstract

This utility model discloses a surface polishing device for cast aluminum end caps, comprising: a mounting base and a support frame, wherein the support frame is securely fixed to the top of the mounting base, and the mounting base is equipped with a flexibly rotatable three-jaw chuck for clamping the workpiece. This utility model achieves a surface polishing device for cast aluminum end caps through the cooperation of the mounting base, support frame, three-jaw chuck, grinding bracket, and protective cover. The three-jaw chuck can accurately clamp cast aluminum end caps of different specifications, and a built-in drive mechanism drives the chuck to rotate stably. When the grinding process starts, the lifting push rod controls the grinding bracket to descend smoothly to get close to the workpiece. For the complex and varied shape of the cast aluminum end cap, the system drives the right-angle support frame by adjusting the push rod, allowing it to rotate around the conversion block to achieve flexible multi-angle positioning. Simultaneously, the lateral push rod pushes the side mounting plate to move horizontally, precisely adjusting the grinding position of the side grinding disc.
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Description

Technical Field

[0001] This utility model relates to the field of end cap production technology, and more specifically, to a surface polishing device for cast aluminum end caps. Background Technology

[0002] Motor end caps are an important part of the motor structure, usually serving as the rear cover of the motor housing. Polishing equipment is a device specifically designed to repair and polish the surface of worn or damaged motor end caps.

[0003] As disclosed in Publication No. CN222831448U, a polishing device for irregular motor end caps belongs to the field of motor end cap processing technology. It includes a worktable, with a first motor fixedly installed at the top of the worktable's inner cavity. A first gear is fixedly connected to the output end of the first motor. A transmission rod is rotatably connected to the bottom of the worktable's inner cavity. A second gear meshing with the first gear is fixedly connected to the outer side of the transmission rod. The top of the transmission rod passes through a rotating seat. A second motor is fixedly installed at the bottom of the rotating seat's inner cavity. A first bevel gear is fixedly connected to the output end of the second motor. A second bevel gear meshing with the first bevel gear is provided in the inner cavity of the rotating seat. This invention can adapt to end caps of various irregular shapes, improving the versatility of the device and increasing the polishing efficiency of motor end caps, while also increasing the convenience for workers.

[0004] The motor polishing equipment disclosed above has two drawbacks. First, the high-speed splashing waste generated during the polishing process can easily cause physical injury to the operator. Second, conventional equipment is difficult to achieve comprehensive and precise grinding when faced with the complex and irregular surface structure of workpieces such as cast aluminum end caps, resulting in inconsistent polishing quality. Therefore, it is necessary to propose a surface polishing equipment for cast aluminum end caps. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a surface polishing device for cast aluminum end caps.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A surface polishing device for cast aluminum end caps includes: a mounting base and a support frame, wherein the support frame is securely fixed to the top of the mounting base;

[0008] The mounting base is equipped with a flexible three-jaw chuck for clamping workpieces;

[0009] A grinding bracket is installed on the top of the mounting base and can be adjusted in height according to actual grinding needs.

[0010] The protective cover is installed on the outside of the grinding bracket in a sleeve-like state, which can effectively prevent the flying of debris generated during the grinding process and ensure operational safety.

[0011] The aforementioned surface polishing equipment for cast aluminum end caps includes a mounting sleeve fixedly connected inside the mounting base. The device also includes a rotary motor, which is securely mounted inside the mounting sleeve. Its output end is fixedly connected to a three-jaw chuck, enabling the three-jaw chuck to rotate flexibly and providing power support for the rotary processing of the workpiece.

[0012] In the aforementioned surface polishing equipment for cast aluminum end caps, a lifting push rod is fixedly connected to the bottom of the support frame, and the other end of the lifting push rod is stably connected to the grinding bracket, thereby realizing a reliable connection between the support frame and the grinding bracket, and driving the grinding bracket to move up and down through the extension and retraction of the lifting push rod.

[0013] The aforementioned surface polishing equipment for cast aluminum end caps, wherein the structure of the polishing bracket includes:

[0014] The top plate has a movable rod fixedly connected to its bottom, which can move freely inside the protective cover.

[0015] The mounting block is fixedly connected to the bottom of the movable rod and is used to mount the grinding tools;

[0016] The rubber spring, connected between the top plate and the protective cover, can buffer and dampen shocks, ensuring the stability of the grinding process.

[0017] The aforementioned surface polishing equipment for cast aluminum end caps, wherein a lateral push rod is fixedly connected inside the mounting block, and the device further includes:

[0018] The side mounting plate is fixedly connected to the output end of the side push rod and can move laterally under the drive of the side push rod.

[0019] Side fixing block, fixedly connected to the left side of the side mounting plate, is used to support subsequent components;

[0020] The conversion block is connected to the side fixed block via a rotating shaft, allowing it to rotate at a certain angle.

[0021] A right-angle support frame is fixedly connected to the conversion block;

[0022] The side-grinding motor is mounted on top of the right-angle support frame;

[0023] The side grinding disc is fixedly connected to the output end of the side grinding motor. The side grinding motor provides rotational power to the side grinding disc for grinding the side of the workpiece.

[0024] The slide bar bracket is fixedly connected to the top of the right-angle support frame;

[0025] The movable sleeve can slide freely on the surface of the slide bar bracket to adjust the position of the side grinding disc;

[0026] Adjust the push rod, connect the movable sleeve to the right-angle support frame, and drive the movable sleeve to slide on the slide bar frame through the telescopic movement, thereby realizing the position adjustment of the side grinding disc.

[0027] The aforementioned surface polishing equipment for cast aluminum end caps, wherein the bottom of the mounting block is fixedly connected to several spring support rods, further includes:

[0028] The motor bracket is fixedly connected to the bottom of the spring support rod, which can play a role in buffering and shock absorption.

[0029] The main grinding motor is installed inside the motor bracket, providing the main power for grinding operations;

[0030] The main grinding disc is fixedly connected to the output end of the main grinding motor and is used for grinding the main surface of the workpiece.

[0031] The aforementioned surface polishing equipment for cast aluminum end caps includes a dust collection hopper fixedly connected to the top of the protective cover. In addition, the device is also equipped with a dust collection box, which is connected to the dust collection hopper via a pipeline. This dust collection box can suck in and collect the dust, debris, and other waste generated during the polishing process into the dust collection box.

[0032] The surface polishing equipment for the cast aluminum end cap mentioned above, wherein a spray support bracket is fixedly connected to the side of the mounting block to support the spray-related components;

[0033] In addition, the device is equipped with a three-way switching pipe, which is securely installed on the top of the protective cover and can realize multi-way liquid diversion.

[0034] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0035] 1. This utility model comprises a mounting base, a support frame, a three-jaw chuck, a grinding bracket, and a protective cover, which work together to create a surface polishing device for cast aluminum end caps. The three-jaw chuck can precisely clamp cast aluminum end caps of different specifications and is driven to rotate stably by a built-in drive mechanism. When the grinding process starts, the lifting push rod controls the grinding bracket to descend smoothly to get close to the workpiece. For the complex and varied shape of the cast aluminum end cap, the system drives the right-angle support frame by adjusting the push rod, making it rotate around the axis of the conversion block to achieve flexible positioning at multiple angles. At the same time, the lateral push rod pushes the side mounting plate to move horizontally, precisely adjusting the grinding position of the side grinding disc. This system has a highly flexible adjustment function and can optimize the grinding path and angle in real time according to the irregular structural characteristics of the cast aluminum end cap, ensuring full coverage and fine grinding of the workpiece surface, effectively improving the quality and efficiency of the polishing operation, and significantly improving the flatness and smoothness of the finished surface.

[0036] 2. In this utility model, the protective cover is transparent, which makes it easy to observe the polishing effect while blocking the debris generated by the polishing splash, thus protecting the operator.

[0037] 3. In this utility model, the dust extraction bucket extracts the dust generated during polishing, preventing the dust from escaping and causing harm to the operator.

[0038] 4. In this utility model, the spray pipe at the bottom of the spray support bracket cools the polishing area to prevent the high temperature generated during polishing from damaging the end cap. Attached Figure Description

[0039] Figure 1 This is a structural cross-sectional view of the main view of this utility model;

[0040] Figure 2 This is a schematic diagram of the structure of the grinding component of this utility model;

[0041] Figure 3 This is a cross-sectional view of the three-jaw chuck, mounting sleeve, and rotary motor of this utility model;

[0042] Figure 4 This is a schematic diagram of the structure of the protective cover, dust collection bucket and three-pronged conversion tube of this utility model.

[0043] In the picture:

[0044] 1 Mounting base, 2 Support frame, 3 Three-jaw chuck, 4 Grinding bracket, 401 Top plate, 402 Movable rod, 403 Mounting block, 404 Rubber spring, 5 Protective cover, 6 Mounting sleeve, 7 Rotary motor, 8 Lifting push rod, 9 Side push rod, 10 Side mounting plate, 11 Side fixing block, 12 Conversion block, 13 Right angle support frame, 14 Side grinding motor, 15 Side grinding disc, 16 Slide rod frame, 17 Movable sleeve, 18 Adjusting push rod, 19 Spring support rod, 20 Motor bracket, 21 Main grinding motor, 22 Main grinding disc, 23 Dust suction bucket, 24 Dust collection box, 25 Spray support bracket, 26 Three-way conversion pipe. Detailed Implementation

[0045] 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.

[0046] like Figure 1-4 As shown, a surface polishing device for cast aluminum end caps is disclosed. The core base of this polishing device consists of a mounting base 1 and a support frame 2. The support frame 2 is vertically fixed to the top of the mounting base 1 to form a stable support frame. A three-jaw chuck 3 that can rotate flexibly is embedded inside the mounting base 1 for precisely clamping the workpiece. A rotary motor 7 is fixedly installed in the mounting sleeve 6 inside the mounting base 1 and is rigidly connected to the three-jaw chuck 3 through the output shaft to provide a power source for the workpiece rotation processing.

[0047] The grinding actuator is based on a liftable grinding bracket 4, which is connected to the support frame 2 via a bottom lifting push rod 8, enabling vertical height adjustment to meet the grinding needs of different workpieces. The grinding bracket 4 adopts a composite shock absorption structure design, including:

[0048] A movable rod 402 extends from below the top plate 401 and moves freely within the protective cover 5.

[0049] Mounting block 403 is fixed to the bottom of movable rod and used to mount grinding tools; rubber spring 404 is set between top plate 401 and protective cover 5 to effectively buffer operation vibration and ensure grinding stability.

[0050] The side grinding system is integrated into the mounting block 403. The side push rod 9 drives the side mounting plate 10 to move laterally. Through the transmission structure composed of the side fixing block 11, the conversion block 12, and the right-angle support frame 13, the side grinding motor 14 and the side grinding disc 15 are precisely positioned. The slide rod frame 16, the movable sleeve 17, and the adjusting push rod 18 constitute a precision micro-adjustment mechanism to achieve millimeter-level adjustment of the grinding angle.

[0051] The main grinding system is flexibly connected to the mounting block 403 via spring support rod 19. The motor bracket 20 at the bottom supports the main grinding motor 21 and the main grinding disc 22, providing strong main surface grinding power while providing shock absorption support.

[0052] In terms of safety protection and auxiliary functions, the protective cover 5 tightly wraps the grinding area, and the top dust suction hopper 23 and dust collection box 24 are connected by pipes to absorb dust and debris generated during the operation in real time.

[0053] The spray support bracket 25, together with the three-way conversion pipe 26, enables precise distribution of multiple coolant channels, meeting the cooling and lubrication requirements of the grinding process.

[0054] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0055] This utility model provides a surface polishing device for cast aluminum end caps. During use, the three-jaw chuck 3, with its adaptive clamping technology, can precisely adapt to various specifications of cast aluminum end caps. A rotary motor 7 achieves stable and uniform rotation, ensuring secure workpiece clamping and smooth operation. After the grinding process starts, the lifting push rod 8, using servo control technology, drives the grinding bracket 4 to descend smoothly with millimeter-level precision, accurately positioning it to the processing surface. For the complex and varied curved contours and irregular structures of cast aluminum end caps, the system adjusts the adjusting push rod 18 to drive the right-angle support frame 13, using the conversion block 12 as the rotation axis, achieving flexible angle adjustment. Adjustment, in conjunction with the linear drive of the side push rod 9 and the side mounting plate 10, allows for high-precision displacement adjustment along the X-axis, accurately positioning the side grinding disc to the designated processing area. This intelligent grinding system integrates a multi-dimensional linkage adjustment mechanism, which, based on visual recognition or preset parameters, can perceive the structural characteristics of the workpiece in real time and dynamically optimize the grinding path and angle, achieving zero dead-angle coverage in complex areas such as irregular curved surfaces and edge transition zones. The protective cover 5 blocks the debris generated during polishing, while the dust generated during grinding is sucked into the dust collection box 24 through the dust suction hopper 23 for centralized collection, preventing injury to operators.

[0056] In summary, the surface polishing equipment for cast aluminum end caps, through the cooperation of the mounting base 1, support frame 2, three-jaw chuck 3, grinding bracket 4, and protective cover 5, solves the problems mentioned in the background art.

[0057] 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 surface polishing device for cast aluminum end caps, comprising: Mounting base (1) and support frame (2), the support frame (2) being fixedly connected to the top of mounting base (1), characterized in that: a rotatable three-jaw chuck (3) is installed inside the mounting base (1); A grinding bracket (4) is movable up and down on the top of the mounting base (1); A protective cover (5) is fitted onto the surface of the grinding bracket (4).

2. The surface polishing equipment for cast aluminum end caps according to claim 1, characterized in that: The internal fixed connection mounting sleeve (6) of the mounting base (1) further includes: A rotary motor (7) is installed inside the mounting sleeve (6), and the output end of the rotary motor (7) is fixedly connected to the three-jaw chuck (3).

3. The surface polishing equipment for cast aluminum end caps according to claim 2, characterized in that: The bottom of the support frame (2) is fixedly connected to a lifting push rod (8), which connects the support frame (2) to the grinding bracket (4).

4. The surface polishing equipment for cast aluminum end caps according to claim 3, characterized in that: The grinding support (4) includes: A top plate (401) is fixedly connected to a movable rod (402) at its bottom, and the movable rod (402) can move inside the protective cover (5); Mounting block (403), which is fixedly connected to the bottom of movable rod (402); A rubber spring (404) connects the top plate (401) to the protective cover (5).

5. The surface polishing equipment for cast aluminum end caps according to claim 4, characterized in that: The mounting block (403) is internally fixedly connected to a lateral push rod (9), and also includes: Side mounting plate (10), the side mounting plate (10) is fixedly connected to the output end of the side push rod (9); Side fixing block (11), which is fixedly connected to the left side of the side mounting plate (10); A conversion block (12) is connected to a side fixing block (11) via a rotating shaft; A right-angle support frame (13) is fixedly connected to the conversion block (12); A side-grinding motor (14) is mounted on top of a right-angle support frame (13); Side grinding disc (15), the side grinding disc (15) is fixedly connected to the output end of the side grinding motor (14); A slide bar bracket (16) is fixedly connected to the top of a right-angle support bracket (13); Movable sleeve (17), which is movable on the surface of slide bar frame (16); Adjusting push rod (18) connects movable sleeve (17) to right angle support frame (13).

6. The surface polishing equipment for cast aluminum end caps according to claim 5, characterized in that: The bottom of the mounting block (403) is fixedly connected to several spring support rods (19), and also includes: Motor bracket (20), which is fixedly connected to the bottom of spring support rod (19); The main grinding motor (21) is installed inside the motor bracket (20); The main grinding disc (22) is fixedly connected to the output end of the main grinding motor (21).

7. The surface polishing equipment for cast aluminum end caps according to claim 6, characterized in that: The top of the protective cover (5) is fixedly connected to a dust collection hopper (23), and also includes: Dust collection box (24), which is connected to the dust collection hopper (23).

8. The surface polishing equipment for cast aluminum end caps according to claim 7, characterized in that: The mounting block (403) is fixedly connected to a spray support bracket (25) on its side, and also includes: The three-pronged conversion tube (26) is mounted on top of the protective cover (5).