Oil cylinder barrel polishing device

Abstract

The utility model belongs to the technical field of oil cylinder machining, and particularly relates to an oil cylinder barrel polishing device which comprises a machine frame and a polishing head. A first power device for controlling the grinding head to rotate and a second power device for controlling the grinding head to ascend and descend are arranged on the rack, the grinding head comprises a rotating shaft, an oilstone assembly, an upper hole cleaning assembly and a lower hole cleaning assembly are arranged on the rotating shaft, and the upper hole cleaning assembly and the lower hole cleaning assembly are located on the upper side and the lower side of the oilstone assembly respectively. In the process of polishing the inner wall of the cylinder barrel, the inner wall of the cylinder barrel is cleaned in real time, the situation that the inner wall of the cylinder barrel is scratched by impurities and chippings is reduced, and the polishing effect of the inner wall of the cylinder barrel is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder processing technology; specifically, this utility model relates to a hydraulic cylinder barrel grinding device. Background Technology

[0002] The grinding process of the cylinder inner wall is a crucial step that directly affects the cylinder's service life. Currently, honing machines are mainly used to grind the cylinder inner wall, creating interlaced textures and effective oil reservoirs to reduce piston wear and extend cylinder life. Currently, the grinding of the cylinder inner wall relies primarily on an oilstone mounted on the honing head. As a consumable part, the oilstone usually needs frequent replacement during the grinding process. During the honing head's up-and-down movement and rotation within the cylinder, impurities or debris generated during grinding easily enter the space between the oilstone and the cylinder inner wall due to the lack of effective external removal methods, causing scratches. Furthermore, lubricating oil is typically added directly from the top of the cylinder to its inner wall, with the subsequent rotation of the oilstone achieving coating of the lubricating oil on the cylinder inner wall. This method is not only inconvenient to operate, but also makes it difficult to effectively control the amount of lubricating oil added. It mainly relies on the worker's skill level and the precision of the operation, which can easily lead to uneven application of lubricating oil, thus affecting the polishing effect. Utility Model Content

[0003] In view of this, the present invention provides a cylinder barrel grinding device, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objectives, this utility model provides a cylinder barrel grinding device, including a frame and a grinding head. The frame is provided with a clamp for fixing the cylinder barrel in a vertical position. The frame is also provided with a first power device for controlling the rotation of the grinding head and a second power device for controlling the lifting and lowering movement of the grinding head. The grinding head includes a rotating shaft, on which an oilstone assembly, an upper cleaning hole assembly, and a lower cleaning hole assembly are provided. The upper cleaning hole assembly and the lower cleaning hole assembly are located on the upper and lower sides of the oilstone assembly, respectively.

[0005] In the cylinder barrel grinding device described above, optionally, the upper cleaning hole assembly includes an upper disc, in which a plurality of upper oil passages are provided in a centrally symmetrical manner, the outer ends of the upper oil passages penetrate the circumferential surface of the upper disc, and upper cleaning hole cotton is installed on the top of the circumferential surface of the upper disc.

[0006] In the cylinder barrel grinding device described above, optionally, the lower cleaning hole assembly includes a lower disc, and the lower disc is provided with a plurality of lower oil passages distributed in a centrally symmetrical manner. The outer ends of the lower oil passages penetrate the circumferential surface of the lower disc, and lower cleaning hole cotton is installed at the bottom of the circumferential surface of the lower disc.

[0007] In the cylinder grinding device described above, optionally, an upper oil storage groove is provided on the circumferential surface of the upper disc corresponding to the area at the outer end of the upper oil passage, and a lower oil storage groove is provided on the circumferential surface of the lower disc corresponding to the area at the outer end of the lower oil passage, and the inner bottom walls of the upper oil storage groove and the lower oil storage groove are provided as conical surfaces.

[0008] In the cylinder grinding device described above, optionally, the rotating shaft is provided with an upper oil storage chamber and a lower oil storage chamber distributed vertically inside. The inner end of the upper oil passage is connected to the upper oil storage chamber, and the inner end of the lower oil passage is connected to the lower oil storage chamber. The rotating shaft is provided with an upper oil pipe and a lower oil pipe. The bottom ends of the upper oil pipe and the lower oil pipe are respectively connected to the upper oil storage chamber and the lower oil storage chamber. The top ends of the upper oil pipe and the lower oil pipe are connected to an oil supply assembly.

[0009] In the cylinder grinding device described above, optionally, the oil supply assembly includes a central oil pipe, and an oil outlet is provided at the bottom of the side of the central oil pipe. The central oil pipe is rotatably installed inside the rotating shaft. The oil supply assembly also includes an upper oil inlet chamber and a lower oil inlet chamber located inside the rotating shaft and respectively provided at the top ends of the upper oil pipe and the lower oil pipe. When the rotating shaft rotates, the upper oil inlet chamber and the lower oil inlet chamber pass through the oil outlet in sequence.

[0010] In the cylinder grinding device described above, optionally, the top end of the rotating shaft is connected to a first power device via a gear pair, and the first power device is an electric motor.

[0011] In the cylinder grinding device described above, optionally, a lifting seat is provided on the frame, the lifting seat is connected to a second power device, the first power device is installed on the lifting seat, and the second power device is a lifting cylinder.

[0012] This utility model discloses a cylinder barrel grinding device, employing an upper cleaning hole assembly and a lower cleaning hole assembly. During the grinding process of the grinding head moving up and down within the cylinder barrel to grind the inner wall, the device cleans the inner wall of the cylinder before the oilstone assembly contacts it. This removes impurities and debris from the inner wall, preventing scratches on the cylinder barrel inner wall and improving the grinding effect. Simultaneously, the upper and lower cleaning hole assemblies evenly coat the inner wall of the cylinder barrel with lubricating oil, further enhancing the grinding effect. Attached Figure Description

[0013] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0014] Figure 1 This is a schematic diagram of the cylinder barrel grinding device of this utility model during cylinder barrel grinding.

[0015] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle.

[0016] Figure 3 This utility model Figure 1 A schematic diagram of the structure of the oil cylinder barrel grinding device.

[0017] Figure 4 This utility model Figure 3 Enlarged view of section B in the middle.

[0018] Figure 5 This utility model Figure 1 A partial sectional view.

[0019] Figure 6 This utility model Figure 5 Enlarged view of point C in the middle.

[0020] Figure 7 This utility model Figure 5 Enlarged view of point D in the middle.

[0021] Figure 8 This utility model Figure 5 Enlarged view of point E in the middle.

[0022] Figure 9 This utility model Figure 5 A schematic diagram of the rotating shaft.

[0023] Figure 10 Question this utility model Figure 9 Enlarged view of point F in the middle.

[0024] Reference numerals in the attached drawings: 1. Frame; 2. Fixture; 3. First power unit; 4. Second power unit; 5. Rotary shaft; 5. Oilstone assembly; 6. Upper cleaning hole assembly; 7. Upper disc; 7.1. Upper oil passage; 7.2. Upper cleaning hole cotton; 7.3. Upper oil reservoir; 7.4. Lower cleaning hole assembly; 8. Lower disc; 8.1. Lower oil passage; 8.2. Lower cleaning hole cotton; 8.3. Lower oil reservoir; 8.4. Upper oil reservoir; 9. Lower oil reservoir; 10. Upper oil pipe; 11. Lower oil pipe; 12. Central oil pipe; 13. Oil outlet; 14. Upper oil inlet chamber; 15. Lower oil inlet chamber; 16. Gear pair; 17. Lifting seat; 18. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1 to 10 As shown, a typical embodiment of this utility model provides a cylinder barrel grinding device, including a frame 1 and a grinding head. The frame 1 is provided with a clamp 2 for fixing the cylinder barrel in a vertical state. The frame 1 is provided with a first power device 3 for controlling the rotation of the grinding head and a second power device 4 for controlling the lifting and lowering movement of the grinding head. The grinding head includes a rotating shaft 5, and the rotating shaft 5 is provided with an oilstone assembly 6, an upper cleaning hole assembly 7 and a lower cleaning hole assembly 8. The upper cleaning hole assembly 7 and the lower cleaning hole assembly 8 are respectively located on the upper and lower sides of the oilstone assembly 6.

[0027] The honing stone assembly 6 includes two mounting rings and a honing stone disposed between the two mounting rings. The mounting rings are fixedly mounted on the outside of the rotating shaft. The honing stone is detachably mounted on the mounting plate. This is prior art; those skilled in the art can refer to the honing stone setting method of a honing head, and it will not be described in detail here.

[0028] During the grinding process, as the grinding head rotates and rises and falls within the cylinder barrel to grind the inner wall of the cylinder, the upper cleaning hole assembly 7 contacts the inner wall of the cylinder barrel before the oilstone assembly 6 during the upward movement of the grinding head. This cleans the inner wall of the cylinder barrel, preventing impurities and debris from entering between the oilstone assembly 6 and the inner wall of the cylinder barrel, thus avoiding scratches on the inner wall. Similarly, during the downward movement of the grinding head, the lower cleaning hole assembly contacts the inner wall of the cylinder barrel before the oilstone assembly 6, cleaning the inner wall of the cylinder barrel and preventing impurities and debris from entering between the oilstone assembly 6 and the inner wall of the cylinder barrel, thus avoiding scratches on the inner wall.

[0029] The upper cleaning hole assembly 7 includes an upper disc 7.1, within which multiple centrally symmetrically distributed upper oil passages 7.2 are arranged. The outer ends of the upper oil passages 7.2 penetrate the circumferential surface of the upper disc 7.1, and an upper cleaning hole cotton 7.3 is installed on the top of the circumferential surface of the upper disc 7.1. During the rotation and lifting of the rotating shaft 5, the upper disc 7.1 drives the upper cleaning hole cotton 7.3 to move synchronously. At this time, the upper cleaning hole cotton 7.3 cleans the inner wall of the cylinder, and the oil in the upper oil passages 7.2 is thrown onto the inner wall of the cylinder. The oil can be evenly distributed on the inner wall of the cylinder in the circumferential direction, achieving lubrication while reducing oil consumption. Especially during the upward movement of the rotating shaft 5, impurities and debris are pushed upward, thereby cleaning the area of ​​the inner wall of the cylinder that the oilstone assembly 6 is about to contact.

[0030] The lower cleaning hole assembly 8 includes a lower disc 8.1, within which multiple centrally symmetrically distributed lower oil passages 8.2 are arranged. The outer ends of the lower oil passages 8.2 penetrate the circumferential surface of the lower disc 8.1, and a lower cleaning hole cotton 8.3 is installed at the bottom of the circumferential surface of the lower disc 8.1. During the rotation and lifting of the rotating shaft 5, the lower disc 8.1 drives the lower cleaning hole cotton 8.3 to move synchronously. At this time, the lower cleaning hole cotton 8.3 cleans the inner wall of the cylinder, and the oil in the lower oil passages 8.2 is thrown onto the inner wall of the cylinder. The oil can be evenly distributed on the cylinder in the circumferential direction, achieving a lubricating effect and reducing oil consumption. Especially during the descent of the rotating shaft 5, impurities and debris are pushed down, thereby cleaning the area of ​​the inner wall of the cylinder that the oilstone assembly 6 is about to contact.

[0031] An upper oil reservoir 7.4 is provided on the circumferential surface of the upper disc 7.1 corresponding to the area at the outer end of the upper oil passage 7.2, and a lower oil reservoir 8.4 is provided on the circumferential surface of the lower disc 8.1 corresponding to the area at the outer end of the lower oil passage 8.2. The inner bottom walls of the upper oil reservoir 7.4 and the lower oil reservoir 8.4 are provided as conical surfaces.

[0032] In a relatively specific embodiment, the outer diameter of the portion of the circumferential surface of the upper disk 7.1 and the lower disk 8.1 corresponding to the bottom of the upper oil reservoir 7.4 and the lower oil reservoir 8.4 is set to be smaller than the inner diameter of the cylinder and form an oiling gap. Thus, after the oil passes over the outer side of the upper oil reservoir and the lower oil reservoir, it can enter the oiling gap, thereby improving the oiling effect on the inner wall of the cylinder.

[0033] The upper oil reservoir 7.4 and the lower oil reservoir 8.4 can store a certain amount of oil, so that the oil can be distributed throughout the inner wall of the cylinder in the circumferential direction, thereby improving the oiling effect.

[0034] The rotating shaft 5 has an upper oil storage chamber 9 and a lower oil storage chamber 10 arranged vertically inside. The inner end of the upper oil passage 7.2 is connected to the upper oil storage chamber 9, and the inner end of the lower oil passage 8.2 is connected to the lower oil storage chamber 10. The rotating shaft 5 also has an upper oil pipe 11 and a lower oil pipe 12. The bottom ends of the upper oil pipe 11 and the lower oil pipe 12 are connected to the upper oil storage chamber 9 and the lower oil storage chamber 10, respectively, and the top ends of the upper oil pipe 11 and the lower oil pipe 12 are connected to an oil supply assembly.

[0035] The upper oil reservoir 9 and lower oil reservoir 10 can store a certain amount of oil. During the rotation of the shaft 5, under the action of centrifugal force, the oil in the upper oil reservoir 9 and lower oil reservoir 10 can enter the upper oil passage 7.2 and lower oil passage 8.2. This design not only improves the oiling effect on the cylinder inner wall, but also ensures that the oil is evenly coated on the cylinder inner wall, reducing oil consumption. In addition, it can maintain a continuous oiling state during the grinding of the cylinder inner wall, maintaining a continuous and stable lubrication effect.

[0036] The oil supply assembly includes a central oil pipe 13, with an oil outlet 14 at the bottom of the side of the central oil pipe 13. The central oil pipe 13 is rotatably installed inside the rotating shaft 5. The oil supply assembly also includes an upper oil inlet chamber 15 and a lower oil inlet chamber 16 located inside the rotating shaft 5 and respectively corresponding to the top ends of the upper oil pipe 11 and the lower oil pipe 12. When the rotating shaft 5 rotates, the upper oil inlet chamber 15 and the lower oil inlet chamber 16 pass through the oil outlet 14 in sequence.

[0037] By setting a central oil pipe 13, the central oil pipe 13 can remain stationary during the rotation of the rotating shaft 5. When the upper oil inlet chamber 15 and the lower oil inlet chamber 16 pass through the oil outlet 14, the oil outlet 14 is connected to the upper oil inlet chamber 15 and the lower oil inlet chamber 16 respectively, so that the oil in the central oil pipe 13 will enter the upper oil inlet chamber 15 and the lower oil inlet chamber 16 through the oil outlet 14. Under the action of centrifugal force, the oil located in the upper oil inlet chamber 15 and the lower oil inlet chamber 16 will enter the upper oil pipe 11 and the lower oil pipe 12 more smoothly.

[0038] The top end of the rotating shaft 5 is connected to the first power device 3 via a gear pair 17, and the first power device 3 is an electric motor. A lifting seat 18 is provided on the frame 1, and the lifting seat 18 is connected to the second power device 4. The first power device 3 is installed on the lifting seat 18, and the second power device 4 is a lifting cylinder.

[0039] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A cylinder barrel grinding device, comprising a frame (1) and a grinding head, wherein the frame (1) is provided with a clamp (2) for fixing the cylinder barrel in a vertical state, and the frame (1) is provided with a first power device (3) for controlling the rotation of the grinding head and a second power device (4) for controlling the lifting and lowering movement of the grinding head, characterized in that, The grinding head includes a rotating shaft (5), on which an oilstone assembly (6), an upper cleaning hole assembly (7), and a lower cleaning hole assembly (8) are provided. The upper cleaning hole assembly (7) and the lower cleaning hole assembly (8) are located on the upper and lower sides of the oilstone assembly (6), respectively.

2. The cylinder barrel grinding device as described in claim 1, characterized in that, The upper cleaning hole assembly (7) includes an upper disk (7.1), in which a plurality of upper oil passages (7.2) are provided in a centrally symmetrical arrangement. The outer ends of the upper oil passages (7.2) penetrate the circumferential surface of the upper disk (7.1), and upper cleaning hole cotton (7.3) is installed on the top of the circumferential surface of the upper disk (7.1).

3. The cylinder barrel grinding device as described in claim 2, characterized in that, The lower cleaning hole assembly (8) includes a lower disk (8.1), and a plurality of lower oil passages (8.2) are provided in the lower disk (8.1) in a centrally symmetrical manner. The outer ends of the lower oil passages (8.2) penetrate the circumferential surface of the lower disk (8.1), and a lower cleaning hole cotton (8.3) is installed at the bottom of the circumferential surface of the lower disk (8.1).

4. The cylinder barrel grinding device as described in claim 3, characterized in that, The upper oil storage tank (7.4) is provided on the circumferential surface of the upper disc (7.1) in the area corresponding to the outer end of the upper oil passage (7.2), and the lower oil storage tank (8.4) is provided on the circumferential surface of the lower disc (8.1) in the area corresponding to the outer end of the lower oil passage (8.2). The inner bottom walls of the upper oil storage tank (7.4) and the lower oil storage tank (8.4) are formed into conical surfaces.

5. The cylinder barrel grinding device as described in claim 3, characterized in that, The rotating shaft (5) is provided with an upper oil storage chamber (9) and a lower oil storage chamber (10) arranged vertically. The inner end of the upper oil passage (7.2) is connected to the upper oil storage chamber (9), and the inner end of the lower oil passage (8.2) is connected to the lower oil storage chamber (10). The rotating shaft (5) is provided with an upper oil pipe (11) and a lower oil pipe (12). The bottom ends of the upper oil pipe (11) and the lower oil pipe (12) are connected to the upper oil storage chamber (9) and the lower oil storage chamber (10) respectively. The top ends of the upper oil pipe (11) and the lower oil pipe (12) are connected to an oil supply assembly.

6. The cylinder barrel grinding device as described in claim 5, characterized in that, The oil supply assembly includes a central oil pipe (13), and an oil outlet (14) is provided at the bottom of the side of the central oil pipe (13). The central oil pipe (13) is rotatably installed inside the rotating shaft (5). The oil supply assembly also includes an upper oil inlet chamber (15) and a lower oil inlet chamber (16) located inside the rotating shaft (5) and respectively corresponding to the top ends of the upper oil pipe (11) and the lower oil pipe (12). When the rotating shaft (5) rotates, the upper oil inlet chamber (15) and the lower oil inlet chamber (16) pass through the oil outlet (14) in sequence.

7. The cylinder barrel grinding device as described in claim 1, characterized in that, The top end of the rotating shaft (5) is connected to the first power device (3) through a gear pair (17), and the first power device (3) is a motor.

8. The cylinder barrel grinding device as described in claim 1, characterized in that, The frame (1) is provided with a lifting seat (18), which is connected to the second power device (4). The first power device (3) is installed on the lifting seat (18), and the second power device (4) is a lifting cylinder.

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