Polishing device with protection function for automobile cylinder sleeve machining

By designing a cylinder liner grinding device with protective and cleaning components, the problems of debris splashing and contamination of the observation window during cylinder liner grinding are solved, achieving safe and efficient cylinder liner processing.

CN224254968UActive Publication Date: 2026-05-19FUJIAN HUIHUA GRP DONGNAN AUTOMOBILE CY LINDER LINER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN HUIHUA GRP DONGNAN AUTOMOBILE CY LINDER LINER CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During cylinder liner grinding, metal shavings are easily splashed, endangering the health of operators. Furthermore, the observation window is easily covered with shavings, leading to low production efficiency and safety hazards.

Method used

A grinding device for automotive cylinder liner processing with protective function was designed, including protective components and cleaning components. A C-shaped plate driven by a cylinder forms a closed space to prevent debris from splashing, and a cleaning brush wipes the observation window in real time. Combined with an electric push rod and rubber strips to adapt to cylinder liners of different inner diameters, synchronous rotation grinding is achieved.

Benefits of technology

Effectively prevents debris from splashing, ensuring operational safety and production efficiency. The cleaning brush removes debris in real time, maintaining a clear view and improving the machining accuracy of cylinder liners and the versatility of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile cylinder sleeve machining, and discloses an automobile cylinder sleeve machining polishing device with a protection function, which comprises a base, a side plate is fixedly connected to the surface of the base, a top plate is fixedly connected to the top of the side plate, a polishing disc is arranged at the bottom end of the top plate, and a C-shaped groove is formed in the top of the top plate. And a protection assembly is arranged on the surface of the top plate and comprises a C-shaped plate, the C-shaped plate is slidably connected to the interior of the C-shaped groove, protruding blocks are fixedly connected to the two sides of the C-shaped plate, and an air cylinder is fixedly connected to the surface of the top plate. According to the polishing device with the protection function for automobile cylinder sleeve machining, through cooperation of the protection assembly and the cleaning assembly, a C-shaped plate forms a closed protection space under driving of an air cylinder, potential safety hazards caused by chipping splashing are avoided, meanwhile, a cleaning brush is driven along with a lead screw to wipe the back face of an observation window in real time, and a clear view can be maintained without shutdown.
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Description

Technical Field

[0001] This utility model relates to the field of automotive cylinder liner processing technology, specifically a grinding device for automotive cylinder liner processing with protective function. Background Technology

[0002] In the automotive engine manufacturing industry, the cylinder liner is one of the core components, and the surface precision of its inner wall directly affects the engine's sealing performance, wear resistance, and overall performance. The grinding process is a crucial step in cylinder liner manufacturing, requiring precision machining of the cylinder liner's inner wall using a grinding device to meet dimensional accuracy and surface roughness requirements.

[0003] Metal shavings generated during cylinder liner grinding can easily fly into the operating area, endangering the health of operators. Furthermore, the observation window, a crucial component for operators to monitor the grinding process, is prone to shavings adhering to its surface, requiring frequent machine stops for manual wiping. This leads to low production efficiency and poses a safety hazard due to contact with high-speed rotating components. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device for machining automotive cylinder liners with protective functions, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for machining automotive cylinder liners with protective function, comprising a base, a side plate fixedly connected to the surface of the base, a top plate fixedly connected to the top of the side plate, a grinding disc provided at the bottom of the top plate, a C-shaped groove formed at the top of the top plate, a protective component provided on the surface of the top plate, the protective component comprising a C-shaped plate slidably connected inside the C-shaped groove, protrusions fixedly connected to both sides of the C-shaped plate, a cylinder fixedly connected to the surface of the top plate, the output end of the cylinder fixedly connected to the protrusions, an observation window provided on the front of the C-shaped groove, a cleaning component provided on the inner side of the C-shaped plate, the cleaning component comprising a movable seat, a fixed plate fixedly connected to the side wall of the movable seat, a cleaning brush fixedly connected to the side wall of the fixed plate, a through hole formed on the side wall of the movable seat, and a lead screw threadedly connected to the through hole.

[0006] Preferably, the surface of the base is provided with a fixing component, the fixing component includes a fixing seat, the fixing seat is fixedly connected to the surface of the base, two sets of fixing seats are symmetrically arranged, an electric push rod is fixedly connected to the side wall of the fixing seat, and a pressure plate is fixedly connected to the end of the electric push rod.

[0007] Preferably, the spacing of the C-shaped groove openings is the same as the width of the side plate.

[0008] Preferably, one end of the lead screw is rotatably connected to the inner wall of the C-shaped plate, and a motor is fixedly connected to the inner wall of the C-shaped plate. The output shaft of the motor is fixedly connected to the other end of the lead screw.

[0009] Preferably, a conical boss is rotatably connected to one side of the pressure plate, and multiple sets of arrayed rubber strips are fixedly connected to the surface of the conical boss.

[0010] Preferably, a second motor is fixedly connected to the other side of the pressure plate, and the output shaft of the second motor passes through and is rotatably connected to the side wall of the pressure plate. The output shaft of the second motor is fixedly connected to the side wall of the conical boss.

[0011] Compared with the prior art, this utility model provides a grinding device for machining automotive cylinder liners with protective function, which has the following beneficial effects:

[0012] 1. This protective grinding device for automotive cylinder liners, through the cooperation of protective and cleaning components, forms a closed protective space under the drive of the cylinder with the C-shaped plate, avoiding the safety hazards caused by flying debris. At the same time, the cleaning brush wipes the back of the observation window in real time with the lead screw drive, maintaining a clear field of vision without stopping the machine, reducing the frequency of manual intervention, and improving production efficiency and operational safety.

[0013] 2. This protective grinding device for automotive cylinder liners uses an electric push rod to drive the conical boss to expand radially. Combined with the friction compensation of the array of rubber strips, it can be adapted to cylinder liners of different inner diameters. The cylinder liner is rotated synchronously by a second motor, which improves the uniformity of grinding force and enhances the processing accuracy and equipment versatility of cylinder liners of various specifications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the top plate structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the protective component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0019] In the diagram: 1. Base; 2. Side plate; 3. Top plate; 31. C-groove; 4. Grinding disc; 5. Protective assembly; 51. C-shaped plate; 52. Protrusion; 53. Cylinder; 54. Observation window; 6. Cleaning assembly; 61. Moving seat; 62. Fixing plate; 63. Cleaning brush; 64. Lead screw; 65. Motor 1; 7. Fixing assembly; 71. Fixing seat; 72. Electric push rod; 73. Pressure plate; 74. Conical boss; 75. Rubber strip; 76. Motor 2. Detailed Implementation

[0020] like Figures 1-5 As shown, this utility model provides a technical solution: a grinding device for machining automotive cylinder liners with protective function, including a base 1, a side plate 2 fixedly connected to the surface of the base 1, a top plate 3 fixedly connected to the top of the side plate 2, a grinding disc 4 provided at the bottom of the top plate 3, a C-shaped groove 31 opened on the top of the top plate 3, the spacing of the openings of the C-shaped groove 31 being the same as the width of the side plate 2, and a protective component 5 provided on the surface of the top plate 3, the protective component 5 including a C-shaped plate 51, the C-shaped plate 51 being slidably connected inside the C-shaped groove 31. Both sides of the C-shaped plate 51 are fixedly connected to protrusions 52, and the surface of the top plate 3 is fixedly connected to a cylinder 53. The output end of the cylinder 53 is fixedly connected to the protrusions 52. Since the C-shaped groove 31 is adapted to the size of the side plate 2, the width of the side plate 2 and the C-shaped plate 51 are the same. The cylinder 53 is used to drive the C-shaped plate 51 to move up and down, so that the C-shaped plate 51 descends. The bottom end of the C-shaped plate 51 is attached to the surface of the base 1. The C-shaped plate 51 is attached to the side wall of the side plate 2, forming a closed space with the top plate 3 to prevent debris from flying during grinding. An observation window 54 is provided on the front of the C-shaped groove 31. The observation window 54 is made of transparent tempered glass, which allows the operator to observe the grinding status in real time.

[0021] like Figures 1-5 As shown, a cleaning component 6 is provided on the inner side of the C-shaped plate 51. The cleaning component 6 includes a movable base 61, a fixed plate 62 is fixedly connected to the side wall of the movable base 61, and a cleaning brush 63 is fixedly connected to the side wall of the fixed plate 62. The cleaning brush 63 is made of soft and wear-resistant rubber material, and its bristles are closely attached to the back of the observation window 54. When metal shavings and dust generated during the polishing process adhere to the inner side of the observation window 54, the observation window 54 can be wiped in real time by moving the movable base 61, avoiding obstruction of the field of vision and ensuring that the operator can continuously and clearly observe the polishing status. A through hole is opened on the side wall of the movable base 61, and a lead screw 64 is threaded into the through hole. One end of the lead screw 64 is rotatably connected to the inner side wall of the C-shaped plate 51. A motor 65 is fixedly connected to the inner side wall of the C-shaped plate 51, and the output shaft of the motor 65 is fixedly connected to the other end of the lead screw 64. The through hole on the side wall of the movable seat 61 is provided with an internal thread that matches the lead screw 64. When the motor 65 drives the lead screw 64 to rotate, the movable seat 61 moves linearly along the axis of the lead screw 64, so that the cleaning brush 63 wipes the observation window 54.

[0022] like Figures 1-5 As shown, a fixing component 7 is provided on the surface of the base 1. The fixing component 7 includes a fixing seat 71, which is fixedly connected to the surface of the base 1. Two sets of fixing seats 71 are symmetrically arranged. An electric push rod 72 is fixedly connected to the side wall of the fixing seat 71. A pressure plate 73 is fixedly connected to the end of the electric push rod 72. A conical boss 74 is rotatably connected to one side of the pressure plate 73. Multiple sets of arrayed rubber strips 75 are fixedly connected to the surface of the conical boss 74. The two sets of symmetrical fixing seats 71 drive the pressure plate 73 through the electric push rod 72. The clamping force can be adjusted according to the cylinder liner size. The pressure plate 73 pushes the conical boss 74 to insert into the inner wall of the cylinder liner. The conical structure tightly fits the inner wall of the cylinder liner through radial expansion force. The rubber strips 75 increase the friction and prevent slippage, while avoiding damage to the inner wall of the cylinder liner. A second motor 76 is fixedly connected to the other side of the pressure plate 73. The output shaft of the second motor 76 passes through and is rotatably connected to the side wall of the pressure plate 73. The output shaft of the second motor 76 is fixedly connected to the side wall of the conical boss 74. The second motor 76 drives the conical boss 74 to rotate, so that the cylinder liner rotates synchronously during the grinding process, which, together with the grinding disc 4, achieves uniform circumferential grinding and improves the surface flatness.

[0023] In this invention, during use, the cylinder liner is placed between two sets of fixed seats 71. The electric push rod 72 pushes the pressure plate 73, causing the conical boss 74 to insert into the inner wall of the cylinder liner and expand for fixation. The second motor 76 is ready. The cylinder 53 pushes the C-shaped plate 51 to close, forming a protective space. The grinding disc 4 starts rotating, and simultaneously, the second motor 76 drives the cylinder liner to rotate, achieving bidirectional grinding. The first motor 65 of the cleaning component 6 drives the lead screw 64, and the cleaning brush 63 moves reciprocally along the grinding area, removing debris in real time to ensure a clean grinding environment. At the end of the operation, the cylinder 53 retracts the C-shaped plate 51, the electric push rod 72 releases the pressure plate 73, and the cylinder liner is removed, completing the processing.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A grinding device for machining automotive cylinder liners with protective function, comprising a base (1), characterized in that: A side plate (2) is fixedly connected to the surface of the base (1), and a top plate (3) is fixedly connected to the top of the side plate (2). A grinding disc (4) is provided at the bottom of the top plate (3). A C-shaped groove (31) is provided on the top of the top plate (3). A protective component (5) is provided on the surface of the top plate (3). The protective component (5) includes a C-shaped plate (51). The C-shaped plate (51) is slidably connected inside the C-shaped groove (31). Protrusions (52) are fixedly connected to both sides of the C-shaped plate (51). The surface of the top plate (3) is fixedly connected to the side plate (2). A cylinder (53) is fixedly connected to the output end of the cylinder (53) and a protrusion (52). An observation window (54) is provided on the front of the C-shaped groove (31). A cleaning component (6) is provided on the inner side of the C-shaped plate (51). The cleaning component (6) includes a movable seat (61). A fixed plate (62) is fixedly connected to the side wall of the movable seat (61). A cleaning brush (63) is fixedly connected to the side wall of the fixed plate (62). A through hole is opened on the side wall of the movable seat (61), and a screw rod (64) is threaded into the through hole.

2. The grinding device for machining automotive cylinder liners with protective function according to claim 1, characterized in that: The surface of the base (1) is provided with a fixing component (7), the fixing component (7) includes a fixing seat (71), the fixing seat (71) is fixedly connected to the surface of the base (1), two sets of fixing seats (71) are symmetrically arranged, an electric push rod (72) is fixedly connected to the side wall of the fixing seat (71), and a pressure plate (73) is fixedly connected to the end of the electric push rod (72).

3. The grinding device for machining automotive cylinder liners with protective function according to claim 1, characterized in that: The spacing of the openings of the C-shaped groove (31) is the same as the width of the side plate (2).

4. A grinding device for machining automotive cylinder liners with protective function according to claim 1, characterized in that: One end of the lead screw (64) is rotatably connected to the inner wall of the C-shaped plate (51), and a motor (65) is fixedly connected to the inner wall of the C-shaped plate (51). The output shaft of the motor (65) is fixedly connected to the other end of the lead screw (64).

5. A grinding device for machining automotive cylinder liners with protective function according to claim 2, characterized in that: A conical boss (74) is rotatably connected to one side of the pressure plate (73), and multiple sets of arrayed rubber strips (75) are fixedly connected to the surface of the conical boss (74).

6. A grinding device for machining automotive cylinder liners with protective function according to claim 5, characterized in that: A second motor (76) is fixedly connected to the other side of the pressure plate (73). The output shaft of the second motor (76) passes through and is rotatably connected to the side wall of the pressure plate (73). The output shaft of the second motor (76) is fixedly connected to the side wall of the conical boss (74).