Polishing device for automobile engine bottom shell machining
By coordinating the movements of the clamping components, linear modules, and grinding components, the problem of positioning and clamping different sized bottom shells in existing devices is solved, realizing multi-directional automated grinding and improving grinding efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU RUIGE PRECISION MACHINERY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-19
AI Technical Summary
Existing grinding devices have fixed clamping structures, making it difficult to adapt to the rapid positioning and clamping of engine casings of different sizes, and thus unable to achieve multi-angle grinding.
The device employs a combination of clamping components, linear modules, sliding seats, and grinding components. The rotating disk is driven by a servo motor and can rotate. The four clamping components are arranged in a cross shape. Adaptive clamping is achieved by the extension and retraction of the cylinder piston rod and the anti-slip pads of the clamping plate. The linear module drives the sliding seat to move, and the linear slide table drives the grinding wheel to adjust its position, thus realizing multi-directional automated grinding.
It achieves adaptive clamping and fixing of base shells of different sizes, improves grinding efficiency and accuracy, adapts to batch processing needs, and ensures positioning stability.
Smart Images

Figure CN224254930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive engine bottom shell processing technology, specifically a grinding device for processing automotive engine bottom shells. Background Technology
[0002] As one of the core components of an engine, the engine bottom housing is mainly used to support the internal structure of the engine and store lubricating oil. Its processing quality directly affects the engine's sealing performance, stability, and service life. The bottom housing is usually made of die-cast aluminum alloy or cast iron and has a complex curved surface structure, multi-cavity design, and thin-walled characteristics. During the processing, its surface needs to be polished to remove burrs and flash and ensure surface roughness and dimensional accuracy to meet subsequent assembly requirements.
[0003] The clamping structures on existing grinding devices are mostly of fixed specifications and are not convenient for rotational adjustment to achieve multi-angle grinding. They are also difficult to adapt to the rapid positioning and clamping of engine sump of different sizes, making them inconvenient for daily use. Utility Model Content
[0004] The purpose of this utility model is to provide a grinding device for processing the bottom shell of an automobile engine. Through the cooperation of clamping components, linear modules, sliding seats and grinding components, the rotating disk is driven by a servo motor and can rotate 360 degrees. With the cooperation of four clamping components distributed in a cross shape, the device uses the extension and retraction of cylinder piston rods and anti-slip pads of clamping plates to achieve adaptive clamping and fixing of the outer edge of bottom shells of different sizes, ensuring stable positioning.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model relates to a grinding device for processing the bottom shell of an automobile engine, comprising a protective cover, a motor mounted on the bottom surface of the protective cover, a rotating disk mounted on the top of the motor penetrating the bottom surface of the inner wall of the protective cover, a clamping assembly mounted on the top surface of the rotating disk, the clamping assembly comprising a cylinder, a piston rod provided at one end of the cylinder, a clamping plate fixedly connected at one end of the piston rod, an anti-slip pad provided on one side of the clamping plate, a linear module mounted on the other side of the bottom surface of the inner wall of the protective cover, a sliding seat slidably fitted on the linear module, a grinding assembly mounted on the top of the sliding seat, the grinding assembly comprising a linear slide, a driver mounted on one side of the linear slide, and a grinding wheel mounted on the bottom of the driver.
[0007] Furthermore, the protective cover is a rectangular box with one end open. A door panel is hinged to one side of the opening of the protective cover. Support legs are welded to the four corners of the bottom of the protective cover. Mounting holes are opened through the bottom of the inner wall of the protective cover. A drive shaft is set at the top of the motor. The top of the drive shaft is installed on the bottom of the rotating disk through the mounting holes.
[0008] Furthermore, the rotating disk is installed inside the protective cover via the drive shaft at the top of the motor. There is a gap between the rotating disk and the bottom surface of the inner wall of the protective cover. There are four clamping components, which are arranged in a cross shape on the top surface of the rotating disk.
[0009] Furthermore, there are two clamping plates and two anti-slip pads, with one clamping plate positioned against the end of the cylinder furthest from the piston rod, and the anti-slip pads on the two clamping plates positioned opposite each other.
[0010] Furthermore, the linear module is equipped with a slider, the bottom surface of the sliding seat is fixedly connected to the top surface of the slider, a sliding block is provided on the linear slide, the driver slides on the linear slide through the sliding block, and the grinding wheel is located above the rotating disk.
[0011] This utility model has the following beneficial effects:
[0012] This invention utilizes a combination of clamping components, a linear module, a sliding seat, and a grinding component. The rotating disk is driven by a servo motor and can rotate 360 degrees. In conjunction with four clamping components arranged in a cross shape, the invention employs the extension and retraction of cylinder piston rods and anti-slip pads of clamping plates to achieve adaptive clamping and fixing of the outer edge of bottom shells of different sizes, ensuring stable positioning. The linear module drives the sliding seat to reciprocate, and the linear slide table drives the driver to slide up and down, coordinating with the rotational motion of the rotating disk to achieve multi-directional automated grinding of the bottom shell surface, improving grinding efficiency and precision, and adapting to the batch processing needs of bottom shells of different specifications.
[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the grinding device.
[0015] Figure 2 This is a schematic diagram of the internal structure of the grinding device;
[0016] Figure 3 This is a structural diagram of the motor, rotating disk, and clamping assembly.
[0017] Figure 4 This is a structural diagram of the linear module, sliding seat, and grinding assembly.
[0018] In the diagram: 1. Support leg; 2. Protective cover; 3. Door panel; 4. Motor; 5. Rotary disc; 6. Clamping assembly; 601. Cylinder; 602. Piston rod; 603. Clamping plate; 604. Anti-slip pad; 7. Linear module; 8. Sliding seat; 9. Grinding assembly; 901. Linear slide; 902. Driver; 903. Grinding wheel. 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] Please see Figure 1-4This utility model provides a technical solution: a grinding device for processing the bottom of an automobile engine, including a protective cover 2, a motor 4 mounted on the bottom surface of the protective cover 2, a rotating disk 5 mounted on the bottom surface of the inner wall of the protective cover 2 through the top of the motor 4, the protective cover 2 being a rectangular box shape with one open end, a door panel 3 hinged to one side of the opening of the protective cover 2, the protective cover 2 and the door panel 3 reducing dust leakage and ensuring a safe operating environment, support legs 1 welded at the four corners of the bottom surface of the protective cover 2, mounting holes through the bottom surface of the inner wall of the protective cover 2, a drive shaft mounted on the top of the motor 4, the top of the drive shaft through the mounting holes and mounted on the bottom surface of the rotating disk 5, a clamping assembly 6 mounted on the top surface of the rotating disk 5, and the rotating disk 5 being mounted inside the protective cover 2 via the drive shaft at the top of the motor 4. A gap is provided between the rotating disk 5 and the bottom surface of the inner wall of the protective cover 2 to avoid interference during rotation. The rotating disk 5 is driven by the motor 4 and can rotate 360 degrees around the drive shaft axis. There are four clamping components 6, which are arranged in a cross shape on the top surface of the rotating disk 5. Each clamping component 6 includes a cylinder 601. One end of the cylinder 601 is provided with a piston rod 602, which can move axially. The front end of the piston rod 602 is fixed to a clamping plate 603 by a threaded connection. One end of the piston rod 602 is fixedly connected to the clamping plate 603. An anti-slip pad 604 is provided on one side of the clamping plate 603. The anti-slip pad 604 is made of rubber material and has a grid-like protrusion on its surface to increase friction. The clamping plate 603 and the anti-slip pad 604 are connected to each other. The number of 04 is two, one of which is a clamping plate 603 abutting against the end of cylinder 601 away from piston rod 602. The anti-slip pads 604 on the two clamping plates 603 are respectively arranged opposite each other. The four clamping components 6 can clamp and fix the outer edge of the engine chassis to be polished by the extension and retraction of piston rod 602, adapting to the positioning of bottom shells of different sizes and specifications. A linear module 7 is installed on the other side of the bottom surface of the inner wall of the protective cover 2. A sliding seat 8 is slidably fitted on the linear module 7. The sliding seat 8 can reciprocate linearly along the axis of the linear module 7 with the slider. A polishing component 9 is installed on the top of the sliding seat 8. The polishing component 9 includes a linear slide 901, which is set perpendicular to the Z-axis direction of the linear module 7. A polishing component 901 is installed on one side of the linear slide 901. The device is equipped with a driver 902, and a grinding wheel 903 is mounted on the bottom of the driver 902. The grinding wheel 903 is fixed to the bottom of the driver 902 via a flange connection. A slider is provided on the linear module 7, and the bottom surface of the sliding seat 8 is fixedly connected to the top surface of the slider. A sliding block is provided on the linear slide table 901. The driver 902 slides on the linear slide table 901 via the sliding block, so that the driver 902 can slide up and down along the vertical direction of the linear slide table 901, thereby adjusting the height position of the grinding wheel 903. The grinding wheel 903 is located above the rotating disk 5. The motor 4, cylinder 601, piston rod 602, linear module 7, linear slide table 901, driver 902 and grinding wheel 903 mentioned above are all existing technologies and will not be described in detail.
[0021] During operation, motor 4 drives the rotating disk 5 to rotate, causing the bottom shell workpiece to rotate. Linear module 7 drives sliding seat 8 to move along the X-axis, and linear slide 901 drives driver 902 to move along the Z-axis. The three work together to achieve multi-directional grinding of the bottom shell surface. The cylinder 601 of clamping component 6 is connected to an external air source through an air circuit, which can automatically adjust the clamping force of clamping plate 603 according to the workpiece size. Anti-slip pad 604 effectively prevents the workpiece from shifting during rotation. The entire device achieves automated grinding of the engine bottom shell through the coordinated movement of each component.
[0022] First, connect an external power source to the electrical equipment in this device, and then place the device in the designated working position.
[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A grinding device for machining the bottom of an automobile engine, comprising a protective cover (2), characterized in that: A motor (4) is installed on the bottom surface of the protective cover (2). A rotating disk (5) is installed on the top of the motor (4) through the bottom surface of the inner wall of the protective cover (2). A clamping assembly (6) is installed on the top surface of the rotating disk (5). The clamping assembly (6) includes a cylinder (601). A piston rod (602) is provided at one end of the cylinder (601). A clamping plate (603) is fixedly connected at one end of the piston rod (602). An anti-slip pad (604) is provided on one side of the clamping plate (603). A linear module (7) is installed on the other side of the bottom surface of the inner wall of the protective cover (2). A sliding seat (8) is slidably fitted on the linear module (7). A grinding assembly (9) is installed on the top of the sliding seat (8). The grinding assembly (9) includes a linear slide (901). A driver (902) is installed on one side of the linear slide (901). A grinding wheel (903) is installed at the bottom of the driver (902).
2. The grinding device for processing the bottom casing of an automobile engine according to claim 1, characterized in that, The protective cover (2) is a rectangular box with one end open. A door panel (3) is hinged to one side of the opening of the protective cover (2). Support legs (1) are welded to the four corners of the bottom surface of the protective cover (2). An installation hole is opened through the bottom surface of the inner wall of the protective cover (2). A drive shaft is provided at the top of the motor (4). The top of the drive shaft is installed through the installation hole on the bottom surface of the rotating disk (5).
3. The grinding device for processing the bottom casing of an automobile engine according to claim 2, characterized in that, The rotating disk (5) is installed inside the protective cover (2) via the drive shaft at the top of the motor (4). There is a gap between the rotating disk (5) and the bottom surface of the inner wall of the protective cover (2). There are four clamping components (6), which are arranged in a cross shape on the top surface of the rotating disk (5).
4. A grinding device for machining an automobile engine casing according to claim 3, characterized in that, There are two clamping plates (603) and two anti-slip pads (604). One of the clamping plates (603) is abutted against the end of the cylinder (601) away from the piston rod (602), and the anti-slip pads (604) on the two clamping plates (603) are respectively arranged opposite to each other.
5. A grinding device for machining an automobile engine casing according to claim 1, characterized in that, The linear module (7) is provided with a slider, the bottom surface of the sliding seat (8) is fixedly connected to the top surface of the slider, the linear slide (901) is provided with a sliding block, the driver (902) is slidably engaged on the linear slide (901) through the sliding block, and the grinding wheel (903) is located above the rotating disk (5).