Deburring machine for inner wall of cylinder barrel

By designing a cylinder inner wall deburring machine, the problem of unstable fixation during cylinder inner wall burr grinding is solved by using a combination of locking wheels and brushes, thus improving grinding efficiency and effect, and making it suitable for mass production.

CN224088619UActive Publication Date: 2026-04-07SHAOGUAN LONGRUN TRADE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In the existing technology, when grinding burrs on the inner wall of hydraulic cylinders, the fixing effect is not good, which makes the cylinder easy to rotate or move around, resulting in poor grinding effect. It also requires a lot of manpower and is inefficient, making it difficult to apply to mass production.

Method used

A cylinder inner wall deburring machine was designed, which uses a locking wheel, a brush, a clamping assembly, and a switching assembly. By switching the horizontal and vertical positions of the locking wheel, combined with the up-and-down displacement and rotation of the brush, the cylinder is stably clamped and rotated, ensuring the deburring effect.

Benefits of technology

It achieves stable removal of burrs from the inner wall of the cylinder, improves grinding efficiency, reduces manual labor input, and is suitable for mass production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of oil cylinder barrel production, and particularly relates to a cylinder barrel inner wall deburring machine which comprises a support, a locking wheel, a brush, a clamping assembly and a switching assembly. The support comprises an upper support body and a lower support body, a supporting rod is fixedly installed between the upper support body and the lower support body, the locking wheel is arranged in the upper support body and can make contact with the outer surface of the cylinder barrel, and the brush is used for removing burrs on the inner wall of the cylinder barrel. The brush can move up and down and rotate in the cylinder barrel, the clamping assembly is arranged in the lower support and used for stably clamping the cylinder barrel in the support, and the switching assembly is arranged in the upper support and used for switching the axial direction of the locking wheel. The cylinder barrel has the advantages that the cylinder barrel can be conveniently and stably inserted into the brush when being installed, the cylinder barrel is prevented from moving, and meanwhile the burr removing effect can be better.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder barrel production technology; specifically, this utility model relates to a deburring machine for the inner wall of a cylinder barrel. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating or oscillating 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, thus finding wide application in the hydraulic systems of various machines. The output force of a hydraulic cylinder is directly proportional to the effective area of ​​the piston and the pressure difference between its two sides. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a buffer device, and a venting device. The buffer and venting devices are optional depending on the specific application, while the other devices are essential. The cylinder barrel is a crucial component of a hydraulic cylinder. During the cylinder barrel manufacturing process, the inner wall of the newly cast cylinder barrel is relatively rough, preventing the piston from sliding freely within it. Therefore, the step of deburring the inner wall of the cylinder barrel is indispensable to obtain a high-quality hydraulic cylinder.

[0003] Currently, when grinding burrs on the inner wall of hydraulic cylinders, the cylinder is not well fixed, and the cylinder is prone to rotation and movement during grinding, resulting in poor grinding effect. Manual grinding consumes a lot of manpower and is inefficient, making it unsuitable for mass production of hydraulic cylinders. Utility Model Content

[0004] In view of this, the present invention provides a cylinder inner wall deburring machine, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0005] To achieve the aforementioned objectives, this utility model provides a cylinder inner wall deburring machine, comprising a support, a locking wheel, a brush, a clamping assembly, and a switching assembly. The support includes an upper support and a lower support, with a support rod fixedly installed between the upper and lower supports. The locking wheel is disposed inside the upper support and can contact the outer surface of the cylinder. The brush is used to remove burrs from the inner wall of the cylinder and can move up and down and rotate within the cylinder. The clamping assembly is disposed inside the lower support and is used to stably clamp the cylinder within the support. The switching assembly is disposed inside the upper support and is used to switch the axial direction of the locking wheel.

[0006] In the cylinder inner wall deburring machine described above, optionally, the locking wheel is provided with a wheel frame, the wheel frame is rotatably mounted on the inner wall of the upper support, and a gear is fixedly mounted on the end of the wheel frame away from the locking wheel, the gear being located between the wheel frame and the inner wall of the upper support.

[0007] In the cylinder inner wall deburring machine described above, optionally, the switching assembly includes a sliding frame, a rack and a drive ring. The sliding frame is slidably installed inside the bracket, the rack is fixedly installed on the top surface of the sliding frame, the teeth of the rack mesh with the gear, the rack is slidably installed inside the upper bracket, and the drive ring is slidably disposed inside the lower bracket.

[0008] In the cylinder inner wall deburring machine described above, optionally, a drive rod is fixedly installed on the top surface of the drive ring, the drive rod is slidably installed on the support rod, the top end of the drive rod can contact the bottom surface of the sliding frame, a limit block is fixedly installed on the support rod, and the bottom surface of the sliding frame can contact the top surface of the limit block.

[0009] In the cylinder inner wall deburring machine described above, optionally, extension plates are fixedly installed on both sides of the drive ring. The end of the extension plate away from the drive ring passes through the outer wall of the lower support. The extension plate is slidably installed on the lower support. A limit rod is slidably installed on the left extension plate. The bottom end of the limit rod is fixedly installed on the lower support. A threaded rod is threadedly connected to the right extension plate. The bottom end of the threaded rod is rotatably installed on the lower support. A first drive cylinder is provided above the threaded rod. The output end of the first drive cylinder is fixedly connected to the top end of the threaded rod.

[0010] In the cylinder inner wall deburring machine described above, optionally, the clamping assembly includes a clamping block, a sliding rod, an upper connecting plate, and a lower connecting plate. The clamping block can contact the bottom outer surface of the cylinder. The sliding rod is fixedly installed on the bottom surface of the clamping block. The upper connecting plate has a first strip groove at its end, the orientation of which is parallel to the radial direction of the cylinder. A slider is fixedly installed at the top of the sliding rod, and the slider is slidably installed in the first strip groove. The lower connecting plate is rotatably installed in the lower support, and the sliding rod is slidably installed on the lower connecting plate.

[0011] In the cylinder inner wall deburring machine described above, optionally, the bottom end of the sliding rod passes through the lower connecting plate and is fixedly mounted with a stop block, the direction of the stop block is parallel to the first strip groove, the bottom surface of the stop block contacts the top surface of the drive ring, and the sliding rod is located within the inner ring range of the drive ring.

[0012] In the cylinder inner wall deburring machine described above, optionally, a second strip groove is provided at the end of the lower connecting plate. The second strip groove is inclined. The sliding rod is slidably installed in the second strip groove. A second driving cylinder is provided below the lower connecting plate. The second driving cylinder is fixedly installed in the lower bracket. The output end of the second driving cylinder is fixedly connected to the bottom surface of the lower connecting plate.

[0013] This utility model discloses a cylinder inner wall deburring machine, which employs a locking wheel that can switch axial directions on an upper support, a drive ring that slides within a lower support, and a lower connecting plate that rotates within the support. This allows the cylinder to be stably installed within the support when the locking wheel is in a horizontal state, and prevents the cylinder from moving when the locking wheel is in a vertical state. Furthermore, the movement of the drive ring controls the cylinder installation within the support while simultaneously switching the locking wheel. The lower connecting plate, when rotating, clamps the cylinder and drives it to rotate. Attached Figure Description

[0014] 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:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the hidden bracket of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the clamping component and the switching component of this utility model;

[0018] Figure 4 This is a schematic diagram of the cylinder of this utility model after it has been cut open.

[0019] Reference numerals in the attached drawings: 1. Bracket; 1-1. Upper bracket; 1-2. Lower bracket; 1-3. Support rod; 1-4. Limiting block; 2. Locking wheel; 2-1. Wheel frame; 2-2. Gear; 3. Brush; 4. Clamping assembly; 4-1. Clamping block; 4-2. Sliding rod; 4-21. Sliding block; 4-22. Stop block; 4-3. Upper connecting plate; 4-31. First slot; 4-4. Lower connecting plate; 4-41. Second slot; 4-5. Second drive cylinder; 5. Switching assembly; 5-1. Sliding frame; 5-2. Rack; 5-3. Drive ring; 5-4. Drive rod; 5-5. Extension plate; 5-6. Limiting rod; 5-7. Threaded rod; 5-8. First drive cylinder. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 4 As shown, a typical embodiment of this utility model provides a cylinder inner wall deburring machine, including a bracket 1, a locking wheel 2, a brush 3, a clamping assembly 4, and a switching assembly 5. The bracket 1 includes an upper bracket 1-1 and a lower bracket 1-2, with a support rod 1-3 fixedly installed between the upper bracket 1-1 and the lower bracket 1-2. The locking wheel 2 is disposed inside the upper bracket 1-1 and can contact the outer surface of the cylinder. The brush 3 is used to remove burrs on the inner wall of the cylinder and can move up and down and rotate inside the cylinder. The clamping assembly 4 is disposed inside the lower bracket 1-2 and is used to stably clamp the cylinder in the bracket 1. The switching assembly 5 is disposed inside the upper bracket 1-1 and is used to switch the axial direction of the locking wheel 2.

[0022] When it is necessary to remove burrs from the inner wall of the cylinder, first place the cylinder on the lower support 1-2, and clamp the bottom end of the cylinder by the clamping assembly 4, and raise the cylinder so that the brush 3 can be inserted into the cylinder.

[0023] When the cylinder is rising, the locking wheel 2 is in a horizontal state, which allows the top of the cylinder to be limited when it extends into the upper bracket 1-1, thus keeping the cylinder stable during the rise.

[0024] After the cylinder has risen, the locking wheel 2 is switched from a horizontal state to a vertical state by the switching component 5. At this time, the cylinder is locked in the height direction, so that the cylinder can maintain the completed rising state more stably and prevent the cylinder from moving. At this time, the cylinder can rotate, so that the brush 3 can remove burrs more effectively.

[0025] The locking wheel 2 is provided with a wheel frame 2-1, which is rotatably mounted on the inner wall of the upper bracket 1-1. A gear 2-2 is fixedly mounted on the end of the wheel frame 2-1 away from the locking wheel 2. The gear 2-2 is located between the wheel frame 2-1 and the inner wall of the upper bracket 1-1.

[0026] When gear 2-2 rotates, it can drive wheel frame 2-1 to rotate, which facilitates the switching between the horizontal and vertical states of locking wheel 2.

[0027] The switching assembly 5 includes a sliding frame 5-1, a rack 5-2, and a drive ring 5-3. The sliding frame 5-1 is slidably installed inside the bracket 1. The rack 5-2 is fixedly installed on the top surface of the sliding frame 5-1. The teeth of the rack 5-2 are meshed with the gear 2-2. The rack 5-2 is slidably installed inside the upper bracket 1-1. The drive ring 5-3 is slidably installed inside the lower bracket 1-2.

[0028] When the sliding frame 5-1 slides up and down, it can drive the rack 5-2 to move up and down. When the rack 5-2 rises, it can drive the gear 2-2 to rotate, which makes it easy to switch the locking wheel 2 from a horizontal state to a vertical state. When the rack 5-2 falls, it can drive the gear 2-2 to rotate, which makes it easy to switch the locking wheel 2 from a vertical state to a horizontal state. And when the rack 5-2 remains stationary, it can lock the gear 2-2, so that the locking wheel 2 remains in a horizontal or vertical state.

[0029] A drive rod 5-4 is fixedly installed on the top surface of the drive ring 5-3. The drive rod 5-4 is slidably installed on the support rod 1-3. The top end of the drive rod 5-4 can contact the bottom surface of the sliding frame 5-1. A limit block 1-4 is fixedly installed on the support rod 1-3. The bottom surface of the sliding frame 5-1 can contact the top surface of the limit block 1-4.

[0030] When the drive ring 5-3 is at the bottom of the lower bracket 1-2, the bottom surface of the sliding frame 5-1 contacts the top surface of the limiting block 1-4, and the top surface of the drive rod 5-4 disengages from the bottom surface of the sliding frame 5-1. When the drive ring 5-3 rises, it can drive the drive rod 5-4 to rise. The top of the drive rod 5-4 contacts the bottom surface of the sliding frame 5-1. When the drive rod 5-4 and the sliding frame 5-1 are in contact, the drive rod 5-4 continues to rise, causing the drive rod 5-4 to drive the sliding frame 5-1 to rise, and causing the rack 5-2 to drive the gear 2-2 to rotate, and switching the locking wheel 2 from a horizontal state to a vertical state.

[0031] When the drive ring 5-3 descends and disengages from the sliding frame 5-1, the sliding frame 5-1 descends under the influence of gravity, which in turn drives the rack 5-2 to descend, allowing the locking wheel 2 to switch from a vertical state to a horizontal state, making it easier to disengage the cylinder from the upper bracket 1-1.

[0032] Extension plates 5-5 are fixedly installed on both sides of the drive ring 5-3. The end of the extension plate 5-5 away from the drive ring 5-3 passes through the outer wall of the lower bracket 1-2. The extension plate 5-5 is slidably installed on the lower bracket 1-2. A limit rod 5-6 is slidably installed on the left extension plate 5-5. The bottom end of the limit rod 5-6 is fixedly installed on the lower bracket 1-2. A threaded rod 5-7 is threadedly connected to the right extension plate 5-5. The bottom end of the threaded rod 5-7 is rotatably installed on the lower bracket 1-2. A first drive cylinder 5-8 is provided above the threaded rod 5-7. The output end of the first drive cylinder 5-8 is fixedly connected to the top end of the threaded rod 5-7.

[0033] When it is necessary to control the rise or fall of the drive ring 5-3, the first drive cylinder 5-8 is activated, which drives the threaded rod 5-7 to rotate. When the threaded rod 5-7 rotates, the drive ring 5-3 is restricted by the limit rod 5-6, which enables the drive ring 5-3 to move up and down.

[0034] The clamping assembly 4 includes a clamping block 4-1, a sliding rod 4-2, an upper connecting plate 4-3, and a lower connecting plate 4-4. The clamping block 4-1 can contact the bottom outer surface of the cylinder. The sliding rod 4-2 is fixedly installed on the bottom surface of the clamping block 4-1. The upper connecting plate 4-3 has a first strip groove 4-31 at its end, and the orientation of the first strip groove 4-31 is parallel to the radial direction of the cylinder. A slider 4-21 is fixedly installed at the top of the sliding rod 4-2, and the slider 4-21 is slidably installed in the first strip groove 4-31. The lower connecting plate 4-4 is rotatably installed in the lower bracket 1-2, and the sliding rod 4-2 is slidably installed on the lower connecting plate 4-4.

[0035] When installing the cylinder, place the bottom of the cylinder on the clamping block 4-1 so that the cylinder can be stably installed on the lower bracket 1-2. When the sliding rod 4-2 slides in the first sliding groove toward the cylinder, it can drive the clamping block 4-1 to move toward the cylinder and stably clamp the cylinder on the upper bracket 1-1.

[0036] The bottom end of the sliding rod 4-2 passes through the lower connecting plate 4-4 and is fixedly installed with a stop block 4-22. The stop block 4-22 is parallel to the first strip groove 4-31. The bottom surface of the stop block 4-22 is in contact with the top surface of the drive ring 5-3. The sliding rod 4-2 is located within the inner ring range of the drive ring 5-3.

[0037] When the drive ring 5-3 rises, it can drive the stop block 4-22 upward. When the top surface of the stop block 4-22 contacts the inner wall of the top of the lower bracket 1-2, the stop block 4-22 is slightly clamped by the drive ring 5-3 and the inner wall of the top of the lower bracket 1-2, keeping the stop block 4-22 in a stable state. At the same time, it can drive the clamping block 4-1 and the drive rod 5-4 upward.

[0038] The lower connecting plate 4-4 has a second strip groove 4-41 at its end. The second strip groove 4-41 is inclined. The sliding rod 4-2 is slidably installed in the second strip groove 4-41. The lower connecting plate 4-4 has a second driving cylinder 4-5 below it. The second driving cylinder 4-5 is fixedly installed in the lower bracket 1-2. The output end of the second driving cylinder 4-5 is fixedly connected to the bottom surface of the lower connecting plate 4-4.

[0039] Activating the second drive cylinder 4-5 causes the lower connecting plate 4-4 to rotate. When the lower connecting plate 4-4 rotates, it causes the second strip groove 4-41 to rotate, and causes the sliding rod 4-2 to move towards the cylinder body, clamping the cylinder. When the cylinder is clamped by the clamping block 4-1, the lower connecting plate 4-4 continues to rotate, which can overcome the friction between the stop block 4-22 and the drive block and the lower bracket 1-2, causing the sliding rod 4-2 to rotate, and causing the cylinder to rotate. With the up-and-down displacement and rotation of the brush 3, the deburring effect of the cylinder is better.

[0040] 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 inner wall deburring machine, characterized in that, The system includes a bracket (1), a locking wheel (2), a brush (3), a clamping assembly (4), and a switching assembly (5). The bracket (1) includes an upper bracket (1-1) and a lower bracket (1-2). A support rod (1-3) is fixedly installed between the upper bracket (1-1) and the lower bracket (1-2). The locking wheel (2) is located inside the upper bracket (1-1) and can contact the outer surface of the cylinder. The brush (3) is used to remove burrs on the inner wall of the cylinder. The brush (3) can move up and down and rotate inside the cylinder. The clamping assembly (4) is located inside the lower bracket (1-2) and is used to stably clamp the cylinder in the bracket (1). The switching assembly (5) is located inside the upper bracket (1-1) and is used to switch the axial direction of the locking wheel (2).

2. The cylinder inner wall deburring machine as described in claim 1, characterized in that, The locking wheel (2) is provided with a wheel frame (2-1), which is rotatably mounted on the inner wall of the upper support (1-1). A gear (2-2) is fixedly mounted on the end of the wheel frame (2-1) away from the locking wheel (2), and the gear (2-2) is located between the wheel frame (2-1) and the inner wall of the upper support (1-1).

3. The cylinder inner wall deburring machine as described in claim 2, characterized in that, The switching component (5) includes a sliding frame (5-1), a rack (5-2), and a drive ring (5-3). The sliding frame (5-1) is slidably installed inside the bracket (1). The rack (5-2) is fixedly installed on the top surface of the sliding frame (5-1). The teeth of the rack (5-2) mesh with the gear (2-2). The rack (5-2) is slidably installed inside the upper bracket (1-1). The drive ring (5-3) is slidably disposed inside the lower bracket (1-2).

4. A cylinder inner wall deburring machine as described in claim 3, characterized in that, A drive rod (5-4) is fixedly installed on the top surface of the drive ring (5-3). The drive rod (5-4) is slidably installed on the support rod (1-3). The top end of the drive rod (5-4) can contact the bottom surface of the sliding frame (5-1). A limit block (1-4) is fixedly installed on the support rod (1-3). The bottom surface of the sliding frame (5-1) can contact the top surface of the limit block (1-4).

5. A cylinder inner wall deburring machine as described in claim 4, characterized in that, Extension plates (5-5) are fixedly installed on both sides of the drive ring (5-3). The end of the extension plate (5-5) away from the drive ring (5-3) passes through the outer wall of the lower bracket (1-2). The extension plate (5-5) is slidably installed on the lower bracket (1-2). A limit rod (5-6) is slidably installed on the left extension plate (5-5). The bottom end of the limit rod (5-6) is fixedly installed on the lower bracket (1-2). A threaded rod (5-7) is threadedly connected to the right extension plate (5-5). The bottom end of the threaded rod (5-7) is rotatably installed on the lower bracket (1-2). A first drive cylinder (5-8) is provided above the threaded rod (5-7). The output end of the first drive cylinder (5-8) is fixedly connected to the top end of the threaded rod (5-7).

6. A cylinder inner wall deburring machine as described in claim 4, characterized in that, The clamping assembly (4) includes a clamping block (4-1), a sliding rod (4-2), an upper connecting plate (4-3), and a lower connecting plate (4-4). The clamping block (4-1) can contact the bottom outer surface of the cylinder. The sliding rod (4-2) is fixedly installed on the bottom surface of the clamping block (4-1). The upper connecting plate (4-3) has a first strip groove (4-31) at its end. The orientation of the first strip groove (4-31) is parallel to the radial direction of the cylinder. A slider (4-21) is fixedly installed at the top of the sliding rod (4-2). The slider (4-21) is slidably installed in the first strip groove (4-31). The lower connecting plate (4-4) is rotatably installed in the lower bracket (1-2). The sliding rod (4-2) is slidably installed on the lower connecting plate (4-4).

7. A cylinder inner wall deburring machine as described in claim 6, characterized in that, The bottom end of the sliding rod (4-2) passes through the lower connecting plate (4-4) and is fixedly installed with a stop block (4-22). The stop block (4-22) is parallel to the first strip groove (4-31). The bottom surface of the stop block (4-22) is in contact with the top surface of the drive ring (5-3). The sliding rod (4-2) is located within the inner ring range of the drive ring (5-3).

8. A cylinder inner wall deburring machine as described in claim 6, characterized in that, The lower connecting plate (4-4) has a second strip groove (4-41) at its end. The second strip groove (4-41) is inclined. The sliding rod (4-2) is slidably installed in the second strip groove (4-41). A second driving cylinder (4-5) is provided below the lower connecting plate (4-4). The second driving cylinder (4-5) is fixedly installed in the lower bracket (1-2). The output end of the second driving cylinder (4-5) is fixedly connected to the bottom surface of the lower connecting plate (4-4).