A surface treatment device for hydraulic cylinder production
By combining the internal positioning mechanism and the grinding mechanism, the problem of dead corners in the grinding of the hydraulic cylinder surface is solved, realizing all-round grinding and environmental purification, and improving grinding efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PLANGHE (CHANGZHOU) TECHNOLOGY CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-12
AI Technical Summary
In current hydraulic cylinder production, the external fixture positioning method makes it difficult for grinding tools to reach the dead corners of the cylinder surface, affecting the consistency and integrity of the product surface quality.
It adopts an internal positioning mechanism and a grinding mechanism. The turntable driven by the cylinder and motor drives the support plate to be positioned inside the oil cylinder, and the arc-shaped grinding plate is used for all-round grinding. At the same time, a dust collection hood is set up to connect to a vacuum cleaner to remove dust during the grinding process.
It achieves all-round, thorough grinding of the cylinder surface, improving grinding efficiency and quality, effectively purifying the working environment, and reducing the health hazards of dust to operators.
Smart Images

Figure CN224347522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic cylinder manufacturing technology, and in particular to a surface treatment device for hydraulic cylinder manufacturing. Background Technology
[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device, has no transmission backlash, and provides smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. During the production process of hydraulic cylinders, in order to ensure surface quality and lay the foundation for polishing, its surface needs to be ground.
[0003] Currently, most surface polishing devices commonly used in the industry employ clamps to fix the hydraulic cylinder from the outside. However, this external clamping and positioning method has significant drawbacks: because the clamp occupies part of the outer area of the hydraulic cylinder, the polishing tool has difficulty reaching the parts blocked by the clamp, resulting in polishing dead corners on the surface of the hydraulic cylinder. This makes it impossible to achieve comprehensive and efficient polishing, seriously affecting the consistency and integrity of the product surface quality. Utility Model Content
[0004] The main purpose of this utility model is to provide a surface treatment device for the production of hydraulic cylinders, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a surface treatment device for the production of hydraulic cylinders.
[0006] Workbench;
[0007] A vertical plate, which is fixedly installed on the upper side wall of the workbench;
[0008] A cylinder is fixedly mounted on one side wall of the upright plate. The output shaft of the cylinder passes through the upright plate and is fixedly connected to a motor housing. A motor is installed inside the motor housing. The output shaft of the motor passes through the side wall of the motor housing away from the upright plate and is fixedly connected to a turntable.
[0009] A gantry frame, which is fixedly installed on the upper side wall of the workbench;
[0010] A positioning mechanism is provided on a turntable and is used to position the cylinder from inside the cylinder.
[0011] A grinding mechanism is mounted on a gantry frame and is used to grind the surface of the hydraulic cylinder.
[0012] As a further description of the above technical solution, the positioning mechanism includes two support plates fixedly mounted on the side wall of the turntable away from the vertical plate. A sleeve is fixedly connected between the other ends of the two support plates. A telescopic column is slidably mounted inside the sleeve. A threaded rod is rotatably mounted at the center of the side wall of the turntable away from the vertical plate. The other end of the threaded rod extends into the telescopic column and is threadedly connected to its inner wall. A knob is fixedly mounted on one end of the threaded rod. Four support plates are provided around the outer side of the sleeve. Four first connecting rods are hinged to one end of the telescopic column. The other end of the first connecting rod is hinged to the support plate. Four sets of second connecting rods are hinged to the outer side wall of the sleeve. Each set of second connecting rods consists of two rods. The other end of the second connecting rod is hinged to the support plate.
[0013] As a further description of the above technical solution, the grinding mechanism includes two threaded sleeves, which are respectively fixedly embedded on the two side walls of the gantry frame. The threaded sleeves are internally threaded with adjusting screws, and the ends of the two adjusting screws that are close to each other are rotatably connected to arc-shaped grinding plates.
[0014] As a further description of the above technical solution, a dust suction hood is provided on the upper inner wall of the gantry frame, and an air pipe is connected to the dust suction hood. The other end of the air pipe is connected to an external vacuum cleaner.
[0015] As a further description of the above technical solution, an anti-slip pad is provided on the outer side wall of the support plate.
[0016] As a further description of the above technical solution, two guide grooves are provided on the inner wall of the sleeve, and a guide rail that matches the guide grooves is fixedly connected to the outer wall of the telescopic column.
[0017] As a further description of the above technical solution, a first guide rod is fixedly connected to both the upper and lower outer walls of the motor housing, and the other end of the first guide rod slides through the upright plate and extends to one side thereon.
[0018] As a further description of the above technical solution, a second guide rod is slidably provided on both sides of the gantry frame and on the upper and lower sides of the threaded sleeve, and one end of the second guide rod is fixedly connected to the arc-shaped grinding plate.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] 1. Through the positioning mechanism, the cylinder can be supported and positioned from inside, so that the cylinder surface is completely exposed within the range of action of the arc-shaped grinding plate, thus completely eliminating grinding dead angles and enabling all-round, thorough grinding of the cylinder surface, significantly improving grinding efficiency and surface treatment quality.
[0021] 2. The dust hood, connected to the vacuum cleaner via an air hose, can promptly remove dust generated during the polishing process, effectively purifying the working environment and greatly reducing the health hazards of dust to operators. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of a surface treatment device for producing hydraulic cylinders according to this utility model;
[0023] Figure 2 This is a schematic diagram of the motor housing structure of a surface treatment device for producing hydraulic cylinders according to this utility model;
[0024] Figure 3 This is a schematic diagram of the positioning mechanism of a surface treatment device for hydraulic cylinder production according to this utility model;
[0025] Figure 4 This is a cross-sectional view of the sleeve of a surface treatment device for producing hydraulic cylinders according to this utility model;
[0026] Figure 5 This is a schematic diagram of the gantry structure of a surface treatment device for hydraulic cylinder production according to this utility model;
[0027] In the diagram: 1. Workbench; 2. Vertical plate; 3. Cylinder; 31. Motor box; 32. Motor; 4. Turntable; 5. Gantry frame; 6. Positioning mechanism; 7. Grinding mechanism; 61. Support plate; 62. Sleeve; 63. Telescopic column; 64. Threaded rod; 65. Knob; 66. Support plate; 67. First connecting rod; 68. Second connecting rod; 71. Threaded sleeve; 72. Adjusting screw; 73. Arc-shaped grinding plate; 8. Dust hood; 81. Air pipe; 661. Anti-slip mat; 621. Guide groove; 311. First guide rod; 731. Second guide rod. Detailed Implementation
[0028] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.
[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] Please see Figure 1-5 This utility model provides a surface treatment device for the production of hydraulic cylinders, comprising:
[0032] Workbench 1;
[0033] Upright plate 2 is fixedly installed on the upper side wall of workbench 1;
[0034] Cylinder 3 is fixedly mounted on one side wall of the vertical plate 2. The output shaft of cylinder 3 passes through the vertical plate 2 and is fixedly connected to a motor housing 31. A motor 32 is installed inside the motor housing 31. The output shaft of motor 32 passes through the side wall of the motor housing 31 away from the vertical plate 2 and is fixedly connected to a turntable 4.
[0035] Gantry 5 is fixedly installed on the upper side wall of workbench 1;
[0036] Positioning mechanism 6 is mounted on turntable 4 and is used to position the cylinder from inside the cylinder.
[0037] Grinding mechanism 7 is mounted on gantry frame 5 and is used to grind the surface of the oil cylinder.
[0038] The above structure enables comprehensive and efficient grinding of the cylinder surface.
[0039] The positioning mechanism 6 includes two support plates 61 fixedly mounted on the side wall of the turntable 4 away from the vertical plate 2. A sleeve 62 is fixedly connected between the other ends of the two support plates 61. A telescopic column 63 is slidably mounted inside the sleeve 62. A threaded rod 64 is rotatably mounted at the center of the side wall of the turntable 4 away from the vertical plate 2. The other end of the threaded rod 64 extends into the telescopic column 63 and is threadedly connected to its inner wall. A knob 65 is fixedly mounted on one end of the threaded rod 64. Four support plates 66 are provided around the outer side of the sleeve 62. Four first connecting rods 67 are hinged to one end of the telescopic column 63. The other end of the first connecting rod 67 is hinged to the support plate 66. Four sets of second connecting rods 68 are hinged to the outer side wall of the sleeve 62. Each set of second connecting rods 68 consists of two rods. The other end of the second connecting rod 68 is hinged to the support plate 66.
[0040] With the above structure, the cylinder can be supported and positioned from inside, so that the cylinder surface is completely exposed within the working range of the arc-shaped grinding plate 73, completely eliminating grinding dead angles and enabling all-round, thorough grinding of the cylinder surface, significantly improving grinding efficiency and surface treatment quality.
[0041] The grinding mechanism 7 includes two threaded sleeves 71, which are fixedly embedded on the two side walls of the gantry frame 5. The threaded sleeves 71 are internally threaded with adjusting screws 72, and the ends of the two adjusting screws 72 that are close to each other are rotatably connected to arc-shaped grinding plates 73.
[0042] With the above structure, oil cylinders of different sizes can be ground.
[0043] The upper inner wall of the gantry frame 5 is equipped with a dust suction hood 8, and an air pipe 81 is connected to the dust suction hood 8. The other end of the air pipe 81 is connected to an external vacuum cleaner.
[0044] With the above-mentioned structure, the dust hood 8 can promptly remove the dust generated during the polishing process, effectively purifying the working environment and greatly reducing the harm of dust to the health of operators.
[0045] Among them, the outer side wall of the support plate 66 is provided with an anti-slip pad 661, which can improve the friction between the support plate 66 and the inner wall of the oil cylinder.
[0046] The sleeve 62 has two guide grooves 621 on its inner wall, and the telescopic column 63 has a guide rail that matches the guide grooves 621 fixedly connected to its outer wall, so that the telescopic column 63 can only move in a straight line when it extends or retracts.
[0047] The motor housing 31 has a first guide rod 311 fixedly connected to the upper and lower outer walls. The other end of the first guide rod 311 slides through the vertical plate 2 and extends to one side of it, which can guide the motor housing 31.
[0048] Among them, the two side walls of the gantry frame 5 are provided with second guide rods 731 on the upper and lower sides of the threaded sleeve 71. One end of the second guide rod 731 is fixedly connected to the arc-shaped grinding plate 73, which can guide the arc-shaped grinding plate 73 and prevent it from rotating.
[0049] It should be noted that this utility model is a surface treatment device for the production of hydraulic cylinders. In use, the cylinder to be polished is placed on the support plate 66. Then, the knob 65 is turned to rotate the threaded rod 64. The rotation of the threaded rod 64 causes the telescopic column 63 to extend outwards. At this time, under the action of the first connecting rod 67 and the second connecting rod 68, the four support plates 66 will tighten the cylinder, thus positioning it. Then, the adjusting screw 72 is rotated. Under the action of the threaded sleeve 71, the rotation of the adjusting screw 72 will push the arc-shaped polishing plate 73 closer to the cylinder, making the arc-shaped polishing plate 73 tightly adhere to the outer surface of the cylinder. Then, the motor 32 is started, and the output shaft of the motor 32... The rotating disc 4 can rotate, and the rotating disc 4 drives the sleeve 62 to rotate via the support plate 61. The rotation of the sleeve 62 drives the four support plates 66 to rotate together, thereby causing the oil cylinder to rotate. When the oil cylinder rotates, the arc-shaped grinding plate 73 grinds the outer surface of the oil cylinder. At the same time, the output shaft of the cylinder 3 drives the motor box 31 to move back and forth continuously, thereby causing the positioning mechanism 6 to drive the oil cylinder to move back and forth continuously, so that the arc-shaped grinding plate 73 can grind the oil cylinder thoroughly. Under the action of the vacuum cleaner, a negative pressure is generated inside the dust hood 8. The dust generated during the grinding process will be sucked into the dust hood 8 and enter the vacuum cleaner through the air pipe 81, thus preventing dust from spreading during the grinding process.
[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A surface treatment device for the production of hydraulic cylinders, characterized in that, include: Workbench (1); The upright plate (2) is fixedly installed on the upper side wall of the workbench (1); Cylinder (3), the cylinder (3) is fixedly installed on one side wall of the upright plate (2), the output shaft of the cylinder (3) passes through the upright plate (2) and is fixedly connected to a motor box (31), a motor (32) is installed in the motor box (31), and the output shaft of the motor (32) passes through the side wall of the motor box (31) away from the upright plate (2) and is fixedly connected to a turntable (4). Gantry (5), the gantry (5) is fixedly installed on the upper side wall of the workbench (1); Positioning mechanism (6), which is disposed on turntable (4), is used to position the cylinder from inside the cylinder; A grinding mechanism (7) is installed on the gantry frame (5) and is used to grind the surface of the oil cylinder.
2. The surface treatment apparatus for hydraulic cylinder production according to claim 1, characterized in that, The positioning mechanism (6) includes two support plates (61) fixedly mounted on the side wall of the turntable (4) away from the vertical plate (2). A sleeve (62) is fixedly connected between the other ends of the two support plates (61). A telescopic column (63) is slidably provided inside the sleeve (62). A threaded rod (64) is rotatably provided at the center of the side wall of the turntable (4) away from the vertical plate (2). The other end of the threaded rod (64) extends into the telescopic column (63) and is threadedly connected to its inner wall. A knob (65) is fixedly sleeved on one end of the sleeve (62). Four support plates (66) are provided on the outer ring of the sleeve (62). Four first connecting rods (67) are hinged to one end of the telescopic column (63). The other end of the first connecting rod (67) is hinged to the support plate (66). Four sets of second connecting rods (68) are hinged to the outer wall of the sleeve (62). Each set of second connecting rods (68) consists of two rods. The other end of the second connecting rod (68) is hinged to the support plate (66).
3. The surface treatment apparatus for hydraulic cylinder production according to claim 1, characterized in that, The grinding mechanism (7) includes two threaded sleeves (71), which are fixedly embedded on the two side walls of the gantry frame (5). The threaded sleeves (71) are internally threaded with adjusting screws (72), and the ends of the two adjusting screws (72) that are close to each other are rotatably connected to arc-shaped grinding plates (73).
4. The surface treatment apparatus for hydraulic cylinder production according to claim 3, characterized in that, The upper inner wall of the gantry frame (5) is provided with a dust suction hood (8), and an air pipe (81) is connected to the dust suction hood (8). The other end of the air pipe (81) is connected to an external vacuum cleaner.
5. The surface treatment apparatus for hydraulic cylinder production according to claim 2, characterized in that, The outer wall of the support plate (66) is provided with an anti-slip pad (661).
6. The surface treatment apparatus for hydraulic cylinder production according to claim 2, characterized in that, The inner wall of the sleeve (62) has two guide grooves (621), and the outer wall of the telescopic column (63) is fixedly connected with a guide rail that is compatible with the guide grooves (621).
7. The surface treatment apparatus for producing hydraulic cylinders according to claim 1, characterized in that, The upper and lower outer walls of the motor housing (31) are fixedly connected with first guide rods (311), and the other end of the first guide rods (311) slides through the upright plate (2) and extends to one side thereon.
8. The surface treatment apparatus for hydraulic cylinder production according to claim 3, characterized in that, The gantry frame (5) has a second guide rod (731) slidably provided on both sides of the gantry frame (5) and on the upper and lower sides of the threaded sleeve (71). One end of the second guide rod (731) is fixedly connected to the arc-shaped grinding plate (73).