A device for treating the inner surface of hydraulic cylinder parts and its application method

Abstract

This invention discloses an internal surface treatment device for hydraulic cylinder accessories and its usage method, relating to the field of hydraulic cylinder technology. It includes an operating table, a placement slot, and a hydraulic cylinder liner. The placement slot is horizontally opened on the surface of the operating table, and its cross-section is semi-circular. An internal surface treatment mechanism is installed inside the operating table, and one end of the internal surface treatment mechanism is fixedly connected to a control mechanism. This invention utilizes the internal surface treatment mechanism, which employs a servo motor to move, causing a fixed ring to compress a spring towards the contact ring. The servo motor is then activated, driving a transmission shaft to rotate via a coupling. This allows the treatment brush to process the hydraulic cylinder liner, facilitating rapid treatment or application of a protective coating to the inner surface of the hydraulic cylinder liner. Simultaneously, it reduces vibration during processing, thereby improving processing efficiency and enhancing the flexibility of equipment use.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder accessory internal surface treatment device and its usage method. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion (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, eliminates 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 cushioning device, and a venting device. The cushioning and venting devices are optional depending on the specific application; the other devices are essential. The hydraulic cylinder liner is an important component of the hydraulic cylinder.

[0003] Those skilled in the art know that when internally treating hydraulic cylinder liners, a component of hydraulic cylinders, is required, the inner surface needs to be cleaned or lubricated before assembling the liner into a complete hydraulic cylinder. However, in practice, existing equipment is complex to operate, and the internally treated components are prone to vibration, affecting the final treatment effect and significantly reducing the flexibility and portability of the equipment. Therefore, we provide a hydraulic cylinder component internal surface treatment device and its application method to solve the above problems. Summary of the Invention

[0004] Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for treating the inner surface of hydraulic cylinder accessories and its usage method.

[0006] Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an internal surface treatment device for hydraulic cylinder accessories, comprising an operating table, a placement groove, and a hydraulic cylinder sleeve. The placement groove is horizontally opened on the surface of the operating table, and the cross-section of the placement groove is semi-circular. An internal surface treatment mechanism is provided inside the operating table, and a control mechanism is fixedly connected to one end of the internal surface treatment mechanism. The end of the control mechanism away from the internal surface treatment mechanism is fixedly connected to one end inside the placement groove. The hydraulic cylinder sleeve is fitted on the outside of the internal surface treatment mechanism at the end away from the control mechanism, and a limiting post is inserted into the other end of the hydraulic cylinder sleeve. The limiting post is fixedly connected to the inside of the placement groove. A limiting stabilizing mechanism is provided directly above the hydraulic cylinder sleeve, and the limiting stabilizing mechanism is movably connected to the surface of the operating table. A protective cover is movably connected to the rear side of the surface of the operating table via a rotating shaft.

[0008] The aforementioned internal surface treatment mechanism includes a servo motor, a drive shaft, a treatment brush, a contact ring, a spring, and a retaining ring. The drive shaft is fixedly connected to the output end of the servo motor via a coupling, and the treatment brush is fixedly connected to the outer wall of the drive shaft. The retaining ring is fixedly connected to the outside of the output end of the servo motor. Several springs are provided, and the springs are located on opposite sides of the contact ring and the retaining ring.

[0009] As described above, the end of the drive shaft away from the servo motor extends into the interior of the hydraulic cylinder liner, and the processing brushes are all in close contact with the inner wall of the hydraulic cylinder liner.

[0010] As described above, the contact ring and the fixed ring have the same shape and size. One end of the spring is fixedly connected to one side of the fixed ring in a circular array, and the other end of the spring is fixedly connected to one side of the contact ring.

[0011] The control mechanism described above includes an electric push rod, a connecting bar, and a guide wheel. One end of the electric push rod is fixed to the rear end of the servo motor, and the other end of the electric push rod is fixedly connected to one end of the placement slot. The connecting bars are placed symmetrically, and several connecting slots are opened on the outer wall of each connecting bar. The guide wheel is movably connected to the inside of the connecting slot through a rotating shaft.

[0012] As described above, a set of symmetrical sliding grooves are provided at the end of the placement groove away from the hydraulic cylinder liner. The sliding grooves are adapted to the guide wheel, and the guide wheel is slidably connected inside the sliding groove.

[0013] As described above, the connecting strips are fixedly connected to the bottom end of the servo motor, and the electric push rod forms a telescopic sliding push structure with the servo motor through the connecting strips and guide wheels.

[0014] The aforementioned limiting and stabilizing mechanism includes a limiting keel, a fixing strip, and a fixing block. The limiting keel is composed of several semi-circular rings arranged together, and the bottom ends of the limiting keel are fixedly connected to both sides by fixing strips. One end of each fixing strip is movably connected to a fixing block via a rotating shaft. The fixing blocks are respectively fixedly connected to both sides of the placement groove, and the fixing blocks and the limiting post are located on the same side.

[0015] As described above, the protective cover has a slot inside, and the cross-section of the slot that engages with the placement slot is circular. Several limiting slots are opened inside the slot, and the limiting slots are adapted to the limiting keel.

[0016] A method for using a hydraulic cylinder component inner surface treatment device includes the following steps:

[0017] S1. Align one end of the hydraulic cylinder liner with the limiting post, and place it into the placement groove. At the same time, insert one end of the liner into the outer wall of the limiting post. Then, flip the limiting keel to one side. At this time, one end of the limiting keel's driving fixing strip rotates on the outside of the fixing block through the rotating shaft, so that the limiting keel cover is fastened on the outer surface of the hydraulic cylinder liner. Then, fasten the protective cover inward, and the limiting keel is respectively engaged in the corresponding limiting groove.

[0018] S2. By controlling the electric push rod, the servo motor is pushed. At this time, the bottom end of the servo motor is connected to the connecting strip, so that the guide wheel installed inside the connecting strip slides inside the connecting groove. At the same time, the drive shaft is pushed into the inside of the hydraulic cylinder liner. At this time, the brush is in close contact with the inner wall of the hydraulic cylinder liner.

[0019] S3. During the process of the drive shaft extending into the hydraulic cylinder liner, the contact ring is pressed against one end of the hydraulic cylinder liner, and at the same time, as the servo motor moves, the fixed ring squeezes the spring to the side of the contact ring.

[0020] S4. Then, start the servo motor to drive the transmission shaft to rotate via the coupling, thereby allowing the processing brush to process the hydraulic cylinder liner.

[0021] Beneficial effects:

[0022] Compared with the prior art, the hydraulic cylinder accessory internal surface treatment equipment and its application method have the following advantages:

[0023] I. This invention utilizes an internal surface treatment mechanism to push a drive shaft into the interior of a hydraulic cylinder liner using an electric push rod. At this point, the treatment brush adheres tightly to the inner wall of the hydraulic cylinder liner. As the drive shaft extends into the hydraulic cylinder liner, a contact ring adheres tightly to one end of the liner. Simultaneously, as the servo motor moves, a fixing ring compresses a spring towards the contact ring. The servo motor is then activated, causing it to rotate the drive shaft via a coupling. This allows the treatment brush to process the hydraulic cylinder liner, facilitating rapid treatment or application of a protective coating to the inner surface of the hydraulic cylinder liner. It also reduces vibration during processing, thereby improving processing efficiency and enhancing the flexibility of equipment use.

[0024] Second, the present invention uses a control mechanism to drive a servo motor by controlling an electric push rod. At this time, the bottom end of the servo motor is connected to a connecting strip, which allows the guide wheel installed inside the connecting strip to slide inside the connecting groove. This facilitates the insertion of the processing mechanism into the hydraulic cylinder liner, eliminates the need for manual alignment, and reduces the difficulty of equipment operation.

[0025] Third, this invention, through the setting of a limiting and stabilizing mechanism and a protective cover, aligns one end of the hydraulic cylinder sleeve with the limiting post, and then places it into the placement groove. At the same time, one end of its connection is inserted into the outer wall of the limiting post. Then, the limiting keel is flipped to one side. At this time, one end of the driving fixing strip of the limiting keel rotates on the outside of the fixing block through the rotating shaft, so that the limiting keel cover is fastened to the outer surface of the hydraulic cylinder sleeve. Then, the protective cover is fastened inward, and the limiting keels are respectively engaged in the corresponding limiting grooves. This helps to prevent the drive shaft from shifting when it is aligned with the inside of the hydraulic cylinder sleeve. Secondly, it enhances the connection stability of the hydraulic cylinder sleeve when the inner surface treatment mechanism is being processed.

[0026] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0029] Figure 3 This is a partial cross-sectional three-dimensional connection structure diagram of the internal surface treatment mechanism of the present invention;

[0030] Figure 4 This is a partial cross-sectional view of the connection structure of the placement slot of the present invention;

[0031] Figure 5 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0032] Figure 6 For the present invention Figure 2 Enlarged structural diagram at point B.

[0033] In the diagram: 1. Operating table; 2. Placement slot; 3. Hydraulic cylinder liner; 4. Inner surface treatment mechanism; 401. Servo motor; 402. Drive shaft; 403. Treatment brush; 404. Contact ring; 405. Spring; 406. Fixing ring; 5. Protective cover; 6. Connecting slot; 7. Control mechanism; 701. Electric push rod; 702. Connecting strip; 703. Guide wheel; 8. Limiting post; 9. Limiting stabilizing mechanism; 901. Limiting keel; 902. Fixing strip; 903. Fixing block; 10. Slot; 11. Limiting slot. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figure 1-6 As shown, the present invention provides a technical solution: an internal surface treatment device for hydraulic cylinder accessories, including an operating table 1, a placement groove 2, and a hydraulic cylinder sleeve 3. The placement groove 2 is horizontally opened on the surface of the operating table 1, and the cross-section of the placement groove 2 is semi-circular. An internal surface treatment mechanism 4 is provided inside the operating table 1, and a control mechanism 7 is fixedly connected to one end of the internal surface treatment mechanism 4. The end of the control mechanism 7 away from the internal surface treatment mechanism 4 is fixedly connected to one end inside the placement groove 2. The hydraulic cylinder sleeve 3 is sleeved on the outside of the internal surface treatment mechanism 4 at the end away from the control mechanism 7, and a limiting post 8 is inserted into the other end of the hydraulic cylinder sleeve 3. The limiting post 8 is fixedly connected to the inside of the placement groove 2. A limiting stabilizing mechanism 9 is provided directly above the hydraulic cylinder sleeve 3, and the limiting stabilizing mechanism 9 is movably connected to the surface of the operating table 1. A protective cover 5 is movably connected to the rear side of the surface of the operating table 1 through a rotating shaft.

[0036] By aligning one end of the hydraulic cylinder sleeve 3 with the limiting post 8 and placing it into the placement groove 2, while inserting one end of its connection into the outer wall of the limiting post 8, and then flipping the limiting keel 901 to one side, one end of the driving fixing strip 902 of the limiting keel 901 rotates on the outside of the fixing block 903 via a rotating shaft, thereby causing the limiting keel 901 to cover the outer surface of the hydraulic cylinder sleeve 3. Then, the protective cover 5 is fastened inward, and the limiting keels 901 are respectively engaged in the corresponding limiting grooves 11, which helps to prevent the drive shaft 402 from shifting when it is aligned and inserted into the interior of the hydraulic cylinder sleeve 3. Secondly, it enhances the connection stability of the hydraulic cylinder sleeve 3 when the inner surface treatment mechanism 4 is processing. At this time, the electric push rod 701 is controlled to drive the servo motor. At this time, the bottom end of the servo motor 401 is connected to the connecting strip 702, thereby causing the guide wheel 703 installed inside the connecting strip 702 to... The sliding mechanism inside the connecting groove 6 facilitates the insertion of the processing mechanism into the hydraulic cylinder sleeve 3, eliminating the need for manual alignment and reducing the difficulty of equipment operation. As the electric push rod 701 pushes the drive shaft 402 into the hydraulic cylinder sleeve 3, the processing brush 403 adheres tightly to the inner wall of the hydraulic cylinder sleeve 3. During the extension of the drive shaft 402 into the hydraulic cylinder sleeve 3, the contact ring 404 adheres tightly to one end of the hydraulic cylinder sleeve 3. Simultaneously, as the servo motor 401 moves, the fixing ring 406 compresses the spring 405 towards the side of the contact ring 404. Then, the servo motor 401 is started, causing it to drive the drive shaft 402 to rotate through the coupling, thereby allowing the processing brush 403 to process the hydraulic cylinder sleeve 3. This facilitates the rapid processing of the inner surface of the hydraulic cylinder sleeve 3 or the application of a protective coating, while reducing vibration during processing, thereby improving processing efficiency and enhancing the flexibility of equipment use.

[0037] like Figure 1-6 As shown, the inner surface treatment mechanism 4 includes a servo motor 401, a drive shaft 402, a treatment brush 403, a contact ring 404, a spring 405, and a fixing ring 406. The drive shaft 402 is fixedly connected to the output end of the servo motor 401 via a coupling, and the treatment brush 403 is fixedly connected to the outer wall of the drive shaft 402. The fixing ring 406 is fixedly connected to the outer side of the output end of the servo motor 401. Several springs 405 are provided, and the springs 405 are located on the opposite side of the contact ring 404 and the fixing ring 406. The end of the drive shaft 402 away from the servo motor 401 extends into the interior of the hydraulic cylinder liner 3. All of the treatment brushes 403 are in close contact with the inner wall of the hydraulic cylinder liner 3. The contact ring 404 and the fixing ring 406 have the same shape and size. One end of the spring 405 is fixedly connected to one side of the fixing ring 406 in a ring array, and the other end of the spring 405 is fixedly connected to one side of the contact ring 404.

[0038] The drive shaft 402 is pushed into the hydraulic cylinder liner 3 by the electric push rod 701. At this time, the treatment brush 403 is in close contact with the inner wall of the hydraulic cylinder liner 3. As the drive shaft 402 extends into the hydraulic cylinder liner 3, the contact ring 404 is pressed against one end of the hydraulic cylinder liner 3. At the same time, as the servo motor 401 moves, the fixing ring 406 squeezes the spring 405 against the side of the contact ring 404. Then the servo motor 401 is started, which drives the drive shaft 402 to rotate through the coupling, so that the treatment brush 403 can treat the hydraulic cylinder liner 3. This is beneficial for quickly treating the inner surface of the hydraulic cylinder liner 3 or applying a protective coating, while reducing vibration during treatment, thereby improving treatment efficiency and enhancing the flexibility of equipment use.

[0039] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the control mechanism 7 includes an electric push rod 701, a connecting bar 702, and a guide wheel 703. One end of the electric push rod 701 is fixed to the rear end of the servo motor 401, and the other end of the electric push rod 701 is fixedly connected to one end of the placement groove 2. The connecting bars 702 are symmetrically placed, and several connecting grooves 6 are opened on the outer wall of each connecting bar 702. The guide wheels 703 are movably connected to the inside of the connecting grooves 6 through rotating shafts. A set of symmetrical sliding grooves is opened at the end of the placement groove 2 away from the hydraulic cylinder liner 3. The sliding grooves are adapted to the guide wheels 703, and the guide wheels 703 are slidably connected to the inside of the sliding grooves. The connecting bars 702 are fixedly connected to the bottom end of the servo motor 401, and the electric push rod 701 forms a telescopic sliding push structure with the servo motor 401 through the connecting bars 702 and the guide wheels 703.

[0040] By controlling the electric push rod 701, the servo motor 401 is driven. At this time, the bottom end of the servo motor 401 is connected to the connecting strip 702, so that the guide wheel 703 installed inside the connecting strip 702 slides inside the connecting groove 6. This facilitates the insertion of the processing mechanism into the hydraulic cylinder liner 3, eliminates the need for manual alignment, and reduces the difficulty of equipment operation.

[0041] like Figure 1 , Figure 2 and Figure 6 As shown, the limiting and stabilizing mechanism 9 includes a limiting keel 901, a fixing strip 902, and a fixing block 903. The limiting keel 901 is composed of several semi-circular rings, and the fixing strips 902 are fixedly connected to both sides of the bottom end of the limiting keel 901. The fixing blocks 903 are movably connected to one end of each fixing strip 902 through a rotating shaft. The fixing blocks 903 are fixedly connected to both sides of the placement groove 2, and the fixing blocks 903 and the limiting post 8 are located on the same side. The protective cover 5 has a slot 10 inside, and the cross section of the slot 10 that engages with the placement groove 2 is circular. Several limiting grooves 11 are opened inside the slot 10, and the limiting grooves 11 are adapted to the limiting keel 901.

[0042] By aligning one end of the hydraulic cylinder sleeve 3 with the limiting post 8 and placing it into the placement groove 2, while inserting one end of its connection into the outer wall of the limiting post 8, and then flipping the limiting keel 901 to one side, at this time, one end of the driving fixing strip 902 of the limiting keel 901 rotates on the outside of the fixing block 903 through the rotating shaft, so that the limiting keel 901 covers the outer surface of the hydraulic cylinder sleeve 3. Then, the protective cover 5 is fastened inward, and the limiting keel 901 is respectively engaged in the corresponding limiting groove 11, which helps to prevent the drive shaft 402 from shifting when it is aligned and inserted into the interior of the hydraulic cylinder sleeve 3, and secondly enhances the connection stability of the hydraulic cylinder sleeve 3 when the inner surface treatment mechanism 4 is processed.

[0043] A method for using a hydraulic cylinder component inner surface treatment device includes the following steps:

[0044] S1. Align one end of the hydraulic cylinder sleeve 3 with the limiting post 8, and then place it into the placement groove 2. At the same time, insert one end of its connection into the outer wall of the limiting post 8. Then flip the limiting keel 901 to one side. At this time, one end of the driving fixing strip 902 of the limiting keel 901 rotates on the outside of the fixing block 903 through the rotating shaft, so that the limiting keel 901 covers the outer surface of the hydraulic cylinder sleeve 3. Then, fasten the protective cover 5 inward, and at the same time, the limiting keel 901 is respectively engaged in the corresponding limiting groove 11.

[0045] S2. By controlling the electric push rod 701, the servo motor 401 is driven. At this time, the bottom end of the servo motor 401 is connected to the connecting strip 702, so that the guide wheel 703 installed inside the connecting strip 702 slides inside the connecting groove 6. At the same time, the drive shaft 402 is pushed into the inside of the hydraulic cylinder liner 3. At this time, the processing brush 403 is in close contact with the inner wall of the hydraulic cylinder liner 3.

[0046] S3. During the process of the drive shaft 402 extending into the hydraulic cylinder sleeve 3, the contact ring 404 is pressed against one end of the hydraulic cylinder sleeve 3. At the same time, as the servo motor 401 moves, the fixing ring 406 compresses the spring 405 to one side of the contact ring 404.

[0047] S4. Then start the servo motor 401, which drives the transmission shaft 402 to rotate through the coupling, so that the processing brush 403 processes the hydraulic cylinder liner 3.

[0048] Working principle: By aligning one end of the hydraulic cylinder sleeve 3 with the limiting post 8 and placing it into the placement groove 2, while inserting one end of its connection into the outer wall of the limiting post 8, the limiting keel 901 is flipped to one side. At this time, one end of the driving fixing strip 902 of the limiting keel 901 rotates on the outside of the fixing block 903 via a rotating shaft, thereby causing the limiting keel 901 to cover the outer surface of the hydraulic cylinder sleeve 3. Then, the protective cover 5 is fastened inward, and the limiting keels 901 are respectively engaged in the corresponding limiting grooves 11. At this time, the electric push rod 701 is controlled to drive the servo motor 401. The bottom end of the servo motor 401 is connected by the connecting strip 702. This causes the guide wheel 703, installed inside the connecting strip 702, to slide inside the connecting groove 6. As the electric push rod 701 pushes the drive shaft 402 into the hydraulic cylinder sleeve 3, the processing brush 403 is in close contact with the inner wall of the hydraulic cylinder sleeve 3. As the drive shaft 402 extends into the hydraulic cylinder sleeve 3, the contact ring 404 is in close contact with one end of the hydraulic cylinder sleeve 3. At the same time, as the servo motor 401 moves, the fixing ring 406 squeezes the spring 405 to one side of the contact ring 404. Then the servo motor 401 is started, causing it to drive the drive shaft 402 to rotate through the coupling, thereby causing the processing brush 403 to process the hydraulic cylinder sleeve 3.

[0049] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for 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 the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for hydraulic cylinder accessories, comprising an operating table (1), a placement slot (2), and a hydraulic cylinder liner (3), characterized in that: The placement slot (2) is horizontally opened on the surface of the operating table (1), and the cross-section of the placement slot (2) is semi-circular. An internal surface treatment mechanism (4) is provided inside the operating table (1), and a control mechanism (7) is fixedly connected to one end of the internal surface treatment mechanism (4). The end of the control mechanism (7) away from the internal surface treatment mechanism (4) is fixedly connected to one end inside the placement slot (2). The hydraulic cylinder sleeve (3) is sleeved on the outside of the internal surface treatment mechanism (4) away from the control mechanism (7), and a limiting post (8) is inserted into the other end of the hydraulic cylinder sleeve (3). The limiting post (8) is fixedly connected to the inside of the placement slot (2). A limiting stabilizing mechanism (9) is provided directly above the hydraulic cylinder sleeve (3), and the limiting stabilizing mechanism (9) is movably connected to the surface of the operating table (1). The surface of the operating table (1) The rear side is movably connected to a protective cover (5) via a pivot. The limiting and stabilizing mechanism (9) includes a limiting keel (901), a fixing strip (902), and a fixing block (903). The limiting keel (901) is composed of several semi-circular rings, and the bottom ends of the limiting keel (901) are fixedly connected to the fixing strips (902) on both sides. One end of each fixing strip (902) is movably connected to a fixing block (903) via a pivot. The fixing blocks (903) are fixedly connected to both sides of the placement groove (2), and the fixing blocks (903) and the limiting post (8) are located on the same side. The protective cover (5) has a slot (10) inside, and the cross section of the slot (10) and the placement groove (2) is circular. Several limiting grooves (11) are opened inside the slot (10), and the limiting grooves (11) are adapted to the limiting keel (901).

2. The hydraulic cylinder accessory internal surface treatment equipment according to claim 1, characterized in that: The inner surface treatment mechanism (4) includes a servo motor (401), a drive shaft (402), a treatment brush (403), a contact ring (404), a spring (405), and a fixing ring (406). The drive shaft (402) is fixedly connected to the output end of the servo motor (401) via a coupling, and the treatment brush (403) is fixedly connected to the outer wall of the drive shaft (402). The fixing ring (406) is fixedly connected to the outer side of the output end of the servo motor (401). Several springs (405) are provided, and the springs (405) are located on the opposite side of the contact ring (404) and the fixing ring (406).

3. The hydraulic cylinder accessory internal surface treatment equipment according to claim 2, characterized in that: The drive shaft (402) extends from the end away from the servo motor (401) into the interior of the hydraulic cylinder liner (3), and the processing brushes (403) are all in close contact with the inner wall of the hydraulic cylinder liner (3).

4. The hydraulic cylinder accessory internal surface treatment equipment according to claim 3, characterized in that: The contact ring (404) and the fixed ring (406) have the same shape and size. One end of the spring (405) is fixedly connected to one side of the fixed ring (406) in a ring array, and the other end of the spring (405) is fixedly connected to one side of the contact ring (404).

5. The hydraulic cylinder accessory internal surface treatment equipment according to claim 4, characterized in that: The control mechanism (7) includes an electric push rod (701), a connecting bar (702) and a guide wheel (703). One end of the electric push rod (701) is fixed to the rear end of the servo motor (401), and the other end of the electric push rod (701) is fixedly connected to one end of the placement slot (2). The connecting bar (702) is placed symmetrically, and several connecting slots (6) are opened on the outer wall of the connecting bar (702). The guide wheel (703) is movably connected to the inside of the connecting slot (6) through a rotating shaft.

6. The hydraulic cylinder accessory internal surface treatment equipment according to claim 5, characterized in that: The placement groove (2) has a set of symmetrical sliding grooves at one end away from the hydraulic cylinder liner (3). The sliding grooves are adapted to the guide wheel (703), and the guide wheel (703) is slidably connected inside the sliding groove.

7. The hydraulic cylinder accessory internal surface treatment equipment according to claim 6, characterized in that: The connecting strip (702) is fixedly connected to the bottom end of the servo motor (401), and the electric push rod (701) forms a telescopic sliding push structure with the servo motor (401) through the connecting strip (702) and the guide wheel (703).

8. A method of using the hydraulic cylinder accessory internal surface treatment equipment as described in claim 7, characterized in that: Includes the following steps: S1. Align one end of the hydraulic cylinder sleeve (3) with the limiting post (8), and then place it into the placement groove (2). At the same time, insert one end of the connection into the outer wall of the limiting post (8), and then flip the limiting keel (901) to one side. At this time, one end of the driving fixing strip (902) of the limiting keel (901) rotates on the outside of the fixing block (903) through the rotating shaft, so that the limiting keel (901) covers the outer surface of the hydraulic cylinder sleeve (3). Then, put the protective cover (5) inward and fasten it. At the same time, the limiting keel (901) is respectively engaged in the corresponding limiting groove (11). S2. By controlling the electric push rod (701), the servo motor (401) is pushed. At this time, the bottom end of the servo motor (401) is connected by the connecting strip (702), so that the guide wheel (703) installed inside the connecting strip (702) slides inside the connecting groove (6), and at the same time pushes the drive shaft (402) to the inside of the hydraulic cylinder liner (3). At this time, the processing brush (403) is in close contact with the inner wall of the hydraulic cylinder liner (3). S3. During the process of the drive shaft (402) extending into the hydraulic cylinder sleeve (3), the contact ring (404) is pressed against one end of the hydraulic cylinder sleeve (3), and at the same time, as the servo motor (401) moves, the fixing ring (406) squeezes the spring (405) to one side of the contact ring (404). S4. Then start the servo motor (401) so that it drives the transmission shaft (402) to rotate through the coupling, so that the processing brush (403) processes the hydraulic cylinder liner (3).

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