A polishing and cleaning device for a developable curved tubular structure

Abstract

The present invention relates to the technical field of grinding devices, and in particular to a grinding and cleaning device for a developable curved tubular structure, comprising a frame and a grinding tool, wherein the grinding tool comprises a supporting sleeve and a plurality of grinding pieces. The plurality of grinding pieces are evenly distributed on the supporting sleeve around a first direction. The grinding piece comprises an oilstone and a flexible sleeve, wherein the flexible sleeve has elasticity, and the two ends of the flexible sleeve along the second direction are respectively fixedly connected to the oilstone and the supporting sleeve, and the oilstone can be movably installed on the supporting sleeve along the second direction. A grinding and cleaning device for a developable curved tubular structure of the present invention is provided with a flexible sleeve between the oilstone and the supporting sleeve, wherein the flexible sleeve can seal the sliding gap between the oilstone and the supporting sleeve, thereby defining a sealing cavity between the flexible sleeve and the supporting sleeve, thereby preventing impurities such as oil sludge from being stuck in the sliding gap between the oilstone and the supporting sleeve, thereby affecting the normal operation of the oilstone.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to a grinding and cleaning device for a developable curved surface tubular structure. Background Art

[0002] A developable surface is a special surface in differential geometry that can be transformed into a plane while preserving its length. A cylinder is a special developable surface. When grinding cylindrical tubular structures such as the inner wall of a battery shell, a honing machine can be used. The honing machine has high precision, high efficiency, excellent surface quality and wide applicability, and plays an important role in modern machining.

[0003] However, during the grinding process, impurities such as sludge may adhere to the surrounding of the oilstone, which is very unfavorable for the use of the oilstone. Chinese patent CN118123696A discloses a process for grinding the inner wall of a diesel engine cylinder body, in which a scraper is arranged in a support. When the scraper is fixed in the material seat, the scraper rests on the surface of the oilstone and moves up and down, and the oilstone can be scraped and cleaned. However, this method can only clean the surface of the oilstone, and cannot effectively clean or prevent the sludge stuck in the expansion gap between the oilstone and the support seat. When too much sludge is adhered, the guide gap between the oilstone and the support seat will become smaller, and the friction will increase, so that the oilstone cannot be retracted normally. Summary of the invention

[0004] The invention provides a polishing and cleaning device with a developable curved surface tubular structure, so as to solve the problem that the existing polishing device cannot effectively clean or prevent the oil sludge stuck in the expansion gap between the oilstone and the support seat.

[0005] The present invention adopts the following technical scheme: a device for grinding and cleaning a tubular structure with an expandable curved surface, which is used for grinding and cleaning the tubular structure, and comprises a frame and a grinding tool, wherein the tubular structure and the grinding tool are both mounted on the frame, and the grinding tool can move toward or away from the tubular structure and extend into the tubular structure, and the direction in which the grinding tool moves toward or away from the tubular structure is called a first direction; the grinding tool comprises a supporting sleeve and a plurality of grinding pieces; the supporting sleeve is arranged along the first direction, and the plurality of grinding pieces are evenly distributed on the supporting sleeve around the first direction; the grinding piece comprises an oil stone and a flexible sleeve, the flexible sleeve is elastic, and the two ends of the flexible sleeve along the second direction are respectively fixed to the oil stone and the supporting sleeve, and the second direction is the radial direction of the supporting sleeve; A sealed cavity is defined between the sleeve and the supporting sleeve; the oilstone can be mounted on the supporting sleeve so as to be movably arranged along the second direction; and the grinding tool can be moved on the frame along the second direction and the third direction, the third direction being the vertical direction; the grinding piece has a first state and a second state, when in the first state, the oilstone is retracted into the supporting sleeve along the second direction, at which time the flexible sleeve protrudes outwardly and is tightened relative to the oilstone along the second direction, and after the flexible sleeve enters the tubular structure along the first direction, it can abut against the inner wall of the tubular structure; the side close to the central axis of the supporting sleeve along the second direction is called the inner side, and the side away from the central axis of the supporting sleeve is called the outer side; when in the second state, the oilstone extends out of the supporting sleeve along the second direction, at which time the flexible sleeve is recessed inwardly relative to the oilstone along the second direction, and the grinding piece is in the first state in the initial state.

[0006] Furthermore, the flexible cover comprises a first layer and a second layer, the first layer is located on the inner side of the second layer, the first layer is a rubber layer, and the second layer is a sponge layer.

[0007] Further, the oil stone is wavy around two sides in the first direction.

[0008] Furthermore, the grinding piece also includes a pad block, which is arranged in a one-to-one correspondence with the oilstone, is located inside the oilstone and is fixed to the oilstone, and is movably mounted on the supporting sleeve along the second direction.

[0009] Furthermore, the grinding tool also includes a rotating sleeve, an adjusting shaft and an adjusting cone. The rotating sleeve is installed on the frame and can rotate relative to the frame around a first direction. The supporting sleeve is installed on the rotating sleeve and can rotate synchronously with the rotating sleeve. The adjusting shaft is installed in the rotating sleeve and can rotate synchronously with the rotating sleeve and can move relative to the rotating sleeve along the first direction. The adjusting cone is located on the inner side of the cushion block. The adjusting cone is fixedly installed at one end of the adjusting shaft close to the supporting sleeve along the first direction, and the movement of the adjusting cone along the first direction can cause the cushion block to move along the second direction.

[0010] Furthermore, a motor is fixedly arranged on the frame, an output end of the motor is fixedly connected to a first rotating wheel, a second rotating wheel is arranged on the rotating sleeve, and the first rotating wheel is meshed with the second rotating wheel.

[0011] Furthermore, a hydraulic telescopic cylinder is fixedly arranged on the frame, the output end of the hydraulic telescopic cylinder extends into the rotating sleeve and is sleeved with the rotating sleeve, the adjusting shaft is connected to the output end of the hydraulic telescopic cylinder, and the adjusting shaft can rotate around a first direction relative to the output end of the hydraulic telescopic cylinder and move synchronously with the output end of the hydraulic telescopic cylinder.

[0012] Furthermore, the grinding tool also includes two knife collecting rings, which are elastic. The two knife collecting rings are respectively installed at two ends of the cushion block along the first direction and connect multiple cushion blocks evenly distributed around the first direction.

[0013] Furthermore, a first slide rail is arranged on the frame, the first slide rail is arranged along the first direction, a first slide plate is arranged on the first slide rail, the first slide plate can slide along the first slide rail, and the rotating sleeve is installed on the first slide plate so that the rotating sleeve can move along the first direction.

[0014] Furthermore, a second slide rail is arranged on the first slide rail, the second slide rail is arranged along the second direction, a second slide rail is arranged on the second slide rail, and the second slide rail can slide along the second slide rail; the second slide rail is connected to a bracket through a second elastic member, the second elastic member is arranged along the third direction, and the rotating sleeve is installed on the bracket.

[0015] The beneficial effects of the present invention are as follows: a developable curved tubular structure grinding and cleaning device of the present invention arranges a flexible sleeve between the oilstone and the supporting sleeve, and the flexible sleeve can seal the sliding gap between the oilstone and the supporting sleeve, thereby defining a sealing cavity between the flexible sleeve and the supporting sleeve, thereby preventing impurities such as oil sludge from being stuck in the sliding gap between the oilstone and the supporting sleeve, thereby affecting the normal operation of the oilstone. And in the initial state, the flexible sleeve protrudes outward, so when the grinding tool is driven to move along the first direction toward the tubular structure, if there is a slight misalignment between the grinding tool and the tubular structure after centering, then when the flexible sleeve protruding outward along the second direction relative to the oilstone contacts the inner wall of the tubular structure, the taut flexible sleeve will prompt the entire grinding tool to move, and the grinding tool is fine-tuned to make the supporting sleeve coaxial with the tubular structure, and the oilstone has not extended at this time. Before starting grinding, the flexible sleeve is used to contact the inner wall of the tubular structure instead of the oilstone, and the grinding tool and the tubular structure are centered to avoid direct contact between the oilstone and the tubular structure and damage to the oilstone. After starting grinding, the oilstone extends out of the supporting sleeve along the second direction. At this time, the outer peripheral wall surface of the flexible sleeve is recessed inward relative to the oilstone along the second direction, and the inner wall of the tubular structure can be ground by the oilstone. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a polishing and cleaning device for a developable curved tubular structure of the present invention;

[0018] Figure 2 A top view of the overall structure of an embodiment of a developable curved tubular structure polishing and cleaning device of the present invention;

[0019] Figure 3 for Figure 2 Sectional view along AA;

[0020] Figure 4 A schematic diagram of a grinding tool of an embodiment of a grinder and cleaning device for a developable curved tubular structure according to the present invention;

[0021] Figure 5 for Figure 4 Cross-sectional view along the middle line BB;

[0022] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0023] Figure 7 It is a schematic diagram of a grinding piece of an embodiment of a grinder and cleaning device for a developable curved tubular structure of the present invention when it is in a first state;

[0024] Figure 8 An exploded view of a grinding tool of an embodiment of a grinder and cleaning device for a developable curved tubular structure of the present invention.

[0025] In the figure: 100, tubular structure; 200, frame; 201, first slide rail; 202, first slide plate; 203, second slide rail; 204, second slide plate; 205, second elastic member; 206, bracket; 210, motor; 220, hydraulic telescopic cylinder; 300, grinding tool; 310, supporting sleeve; 311, sealing cover; 320, grinding member; 330, oilstone; 340, flexible sleeve; 341, sponge layer; 342, rubber layer; 350, sealing chamber; 360, cushion block; 370, rotating sleeve; 380, adjusting shaft; 381, adjusting cone; 390, knife collecting ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] An embodiment of a developable curved tubular structure polishing and cleaning device of the present invention is as follows Figures 1 to 8 shown.

[0028] A developable curved tubular structure grinding and cleaning device is used for grinding and cleaning the tubular structure 100, comprising a frame 200 and a grinding tool 300. The tubular structure 100 and the grinding tool 300 are both mounted on the frame 200. The grinding tool 300 can move toward or away from one side of the tubular structure 100 and extend into the tubular structure 100. The direction in which the grinding tool 300 moves toward or away from the tubular structure 100 is referred to as a first direction.

[0029] The grinding tool 300 includes a support sleeve 310 and a plurality of grinding pieces 320. A sealing cover 311 is fixedly connected to one end of the support sleeve 310 close to the tubular structure 100 in the first direction, and the plurality of grinding pieces 320 are evenly distributed on the support sleeve 310 around the first direction. The grinding piece 320 includes an oilstone 330 and a flexible sleeve 340. The flexible sleeve 340 is elastic. The two ends of the flexible sleeve 340 along the second direction are respectively fixed to the oilstone 330 and the support sleeve 310. The second direction is the radial direction of the support sleeve 310. A sealed cavity 350 is defined between the flexible sleeve 340 and the support sleeve 310. That is, the support sleeve 310 has a cavity inside, and the flexible sleeve 340 is used to seal between the oilstone 330 and the support sleeve 310 to form a sealed cavity 350. The oilstone 330 can be movably installed on the support sleeve 310 along the second direction. The grinding tool 300 can move on the frame 200 along the second direction and the third direction, and the third direction is the vertical direction.

[0030] The grinding piece 320 has a first state and a second state. When in the first state, the oilstone 330 retracts into the supporting sleeve 310 along the second direction, and the flexible sleeve 340 bulges outward and tightens relative to the oilstone 330 along the second direction; the flexible sleeve 340 can abut against the inner wall of the tubular structure 100 after entering the tubular structure 100 along the first direction; the side close to the central axis of the supporting sleeve 310 along the second direction is called the inner side, and the side away from the central axis of the supporting sleeve 310 is called the outer side; when in the second state, the oilstone 330 extends out of the supporting sleeve 310 along the second direction, and the outer peripheral wall surface of the flexible sleeve 340 is recessed inward relative to the oilstone 330 along the second direction. In the initial state, the grinding piece 320 is in the first state.

[0031] Specifically, a slide groove is provided on the support sleeve 310 , and the slide groove is arranged along the second direction. The oilstone 330 can be installed in the slide groove so as to be movable along the second direction.

[0032] In this embodiment, a flexible sleeve 340 is provided between the oilstone 330 and the support sleeve 310. The flexible sleeve 340 can seal the sliding gap between the oilstone 330 and the support sleeve 310, thereby defining a sealing cavity 350 between the flexible sleeve 340 and the support sleeve 310, thereby preventing impurities such as sludge from being stuck in the sliding gap between the oilstone 330 and the support sleeve 310, thereby affecting the normal operation of the oilstone 330. In the initial state, the flexible sleeve 340 protrudes outward, so when the grinding tool 300 is driven to move along the first direction toward the tubular structure 100, if there is a slight misalignment between the grinding tool 300 and the tubular structure 100 after centering, the flexible sleeve 340 protruding outward along the second direction relative to the oilstone 330 contacts the inner wall of the tubular structure 100, and the tightened flexible sleeve 340 will cause the entire grinding tool 300 to move, and the grinding tool 300 is fine-tuned to make the support sleeve 310 coaxial with the tubular structure 100, and at this time The oilstone 330 has not been extended. Before starting to grind, the flexible sleeve 340 is used to replace the oilstone 330 to contact the inner wall of the tubular structure 100, and the grinding tool 300 and the tubular structure 100 are centered to avoid direct contact between the oilstone 330 and the tubular structure 100 and damage to the oilstone 330. After starting to grind, the oilstone 330 extends out of the supporting sleeve 310 along the second direction. At this time, the outer peripheral wall surface of the flexible sleeve 340 is recessed inwardly along the second direction relative to the oilstone 330, and the inner wall of the tubular structure 100 can be grinded by the oilstone 330.

[0033] In this embodiment, the flexible cover 340 has a first layer and a second layer, the first layer is located on the inner side of the second layer, the first layer is a rubber layer 342 , and the second layer is a sponge layer 341 .

[0034] In this embodiment, the flexible sleeve 340 is set to two layers. After polishing, the polishing piece 320 is switched to the first state again, and at this time the sponge layer 341 outside the flexible sleeve 340 can move along the inner wall of the tubular structure 100 and clean the inner wall of the tubular structure 100.

[0035] In this embodiment, the oil stone 330 is wavy around two sides in the first direction, that is, the side surface of the oil stone 330 is a wavy surface.

[0036] By making the two sides of the oilstone 330 in the first direction wavy, the heat dissipation area of ​​the oilstone 330 during the grinding process can be increased. When the oilstone 330 extends out of the support sleeve 310 in the second direction, the outer peripheral wall surface of the flexible sleeve 340 is concave inward relative to the oilstone 330 in the second direction, and because the oilstone 330 extends out of the support sleeve 310, the air pressure in the sealed cavity 350 will be lower than the external air pressure, and the flexible sleeve 340 is further adsorbed onto the wavy side of the oilstone 330 under the action of the air pressure, so that the flexible sleeve 340 is deformed, and the gap inside the sponge layer 341 is squeezed, and the degree of liquid absorption by the sponge layer 341 is reduced during grinding. When the grinding piece 320 is switched to the first state again, the gap inside the sponge layer 341 is opened again, which can improve the liquid absorption effect of the sponge layer 341.

[0037] In this embodiment, the grinding piece 320 also includes a pad 360, which is arranged in a one-to-one correspondence with the oilstone 330. The pad 360 is located on the inner side of the oilstone 330 and is fixed to the oilstone 330. The pad 360 can be movably installed on the support sleeve 310 along the second direction. When the pad 360 moves along the second direction, it can drive the corresponding oilstone 330 to move synchronously.

[0038] In this embodiment, the grinding tool 300 further includes a rotating sleeve 370, an adjusting shaft 380 and an adjusting cone 381. The rotating sleeve 370 is mounted on the frame 200 and can rotate relative to the frame 200 around a first direction. The supporting sleeve 310 is mounted on the rotating sleeve 370 and can rotate synchronously with the rotating sleeve 370. The adjusting shaft 380 is mounted in the rotating sleeve 370 and can rotate synchronously with the rotating sleeve 370 and can move relative to the rotating sleeve 370 along the first direction. The adjusting cone 381 is located on a side of the cushion block 360 close to the central axis of the supporting sleeve 310 in the second direction. The adjusting cone 381 is fixedly mounted on one end of the adjusting shaft 380 close to the supporting sleeve 310 in the first direction, and the movement of the adjusting cone 381 in the first direction can cause the cushion block 360 to move in the second direction. The adjusting cone 381 is connected to the sealing cover 311 through a first elastic member, and the first elastic member is a compression spring.

[0039] Specifically, a motor 210 is fixedly installed on the frame 200, and the output end of the motor 210 is fixedly connected to a first wheel. A second wheel is arranged on the rotating sleeve 370, and the second wheel is located at one end of the rotating sleeve 370 away from the sealing cover 311 in the first direction. The first wheel is meshed with the second wheel, and when the first wheel rotates, it can drive the second wheel to rotate, thereby driving the rotating sleeve 370 to rotate.

[0040] A hydraulic telescopic cylinder 220 is fixedly arranged on the frame 200, and the output end of the hydraulic telescopic cylinder 220 extends into the rotating sleeve 370 and is sleeved with the rotating sleeve 370. The end of the adjusting shaft 380 away from the sealing cover 311 in the first direction is connected to the output end of the hydraulic telescopic cylinder 220, so that the adjusting shaft 380 can drive the adjusting cone 381 to move in the first direction, and the adjusting shaft 380 can rotate around the first direction relative to the output end of the hydraulic telescopic cylinder 220 and move synchronously with the output end of the hydraulic telescopic cylinder 220.

[0041] Annular protrusions are evenly distributed on the adjusting shaft 380 around the first direction, and an annular groove is opened on the output end of the hydraulic telescopic cylinder 220 around the first direction. The annular protrusions and the annular grooves rotate in cooperation, so that the adjusting shaft 380 can rotate around the first direction relative to the output end of the hydraulic telescopic cylinder 220 and move synchronously with the output end of the hydraulic telescopic cylinder 220.

[0042] The adjusting shaft 380 cooperates with the keyway of the rotating sleeve 370 , so that the adjusting shaft 380 can rotate synchronously with the rotating sleeve 370 and can move along the first direction relative to the rotating sleeve 370 .

[0043] The grinding tool 300 also includes two knife collecting rings 390, which are elastic. The two knife collecting rings 390 are respectively installed at the two ends of the cushion block 360 along the first direction and connect multiple cushion blocks 360 evenly distributed around the first direction. When the cushion block 360 moves along the second direction away from the central axis of the support sleeve 310, the knife collecting ring 390 can be stretched.

[0044] Specifically, a plurality of push blocks are arranged in sequence along the first direction on the adjusting cone 381, and the push blocks are conical blocks. A push surface for cooperating with the push blocks is arranged on the inner wall surface of the cushion block 360. When the adjusting cone 381 moves along the first direction, the push block can cooperate with the push surface and cause the cushion block 360 to move along the second direction through the push surface.

[0045] In this embodiment, structures such as a rotating sleeve 370, an adjusting shaft 380 and an adjusting cone 381 are provided. When in use, the motor 210 is started. The starting of the motor 210 will drive the first rotating wheel to rotate. The rotation of the first rotating wheel can drive the second rotating wheel to rotate, and then drive the rotating sleeve 370 to rotate. The rotation of the rotating sleeve 370 will drive the adjusting shaft 380, the supporting sleeve 310 and multiple grinding parts 320 to rotate synchronously, thereby realizing the grinding of the tubular structure 100 by the grinding parts 320.

[0046] In this embodiment, a first slide rail 201 is provided on the frame 200, and the first slide rail 201 is provided along a first direction. A first slide plate 202 is provided on the first slide rail 201, and the first slide plate 202 is driven by a first driving member so that the first slide plate 202 can slide along the first slide rail 201. The rotating sleeve 370 is installed on the first slide plate 202 so that the rotating sleeve 370 can move along the first direction. The first driving member is a hydraulic cylinder or a driving motor commonly used in the prior art, and other achievable driving methods may also be used, which will not be described in detail here.

[0047] Furthermore, the first slide plate 202 is provided with a second slide rail 203, the second slide rail 203 is provided along the second direction, the second slide rail 203 is provided with a second slide plate 204, and the second slide plate 204 is driven by a second driving member so that the second slide plate 204 can slide along the second slide rail 203. The second driving member is a hydraulic cylinder or a driving motor commonly used in the prior art, and other achievable driving modes may also be adopted, which will not be described in detail here.

[0048] The second slide plate 204 is connected to a bracket 206 via a second elastic member 205. The second elastic member 205 is arranged along the third direction. The third elastic member is a spring. The rotating sleeve 370, the motor 210 and the hydraulic telescopic cylinder 220 are all installed on the bracket 206, so that the bracket 206 can move along the third direction on the second slide plate 204, and the rotating sleeve 370 is driven by the bracket 206 to move along the second direction and the third direction on the frame 200.

[0049] In combination with the above embodiments, the specific working principle and working process are as follows:

[0050] When in use, the first driving member and the second driving member are used to respectively move the first slide plate 202 and the second slide plate 204 to align the support sleeve 310 and the tubular structure 100 so that the two are coaxial.

[0051] Then, the first driving member is started to cause the first slide plate 202 to move along the first direction toward the side close to the tubular structure 100. At this time, the oil stone 330 is retracted into the supporting sleeve 310 along the second direction. At this time, the flexible sleeve 340 is bulged outwardly in the second direction relative to the oil stone 330 and tightened. When the grinding tool 300 is driven to move along the first direction toward the tubular structure 100, if there is a slight misalignment between the grinding tool 300 and the tubular structure 100 after centering, the flexible sleeve 340 is bulged outwardly in the second direction relative to the oil stone 330. When 340 contacts the inner wall of the tubular structure 100, the tightened flexible sleeve 340 will prompt the entire grinding tool 300 to move, and the grinding tool 300 will be fine-tuned to make the supporting sleeve 310 coaxial with the tubular structure 100. At this time, the oilstone 330 has not extended. Before starting to grind, the flexible sleeve 340 is used to replace the oilstone 330 to contact the inner wall of the tubular structure 100, and the grinding tool 300 and the tubular structure 100 are centered to avoid direct contact between the oilstone 330 and the tubular structure 100 and damage to the oilstone 330.

[0052] Then, the hydraulic telescopic cylinder 220 is started, and the adjustment shaft 380 is driven by the hydraulic telescopic cylinder 220 to drive the adjustment cone 381 to move in the first direction. When the adjustment cone 381 moves in the first direction, the push block can cooperate with the push surface and cause the cushion block 360 to move in the second direction through the push surface. When the cushion block 360 moves in the second direction, it can drive the corresponding oilstone 330 to move synchronously, so that the grinding piece 320 switches to the second state, and the oilstone 330 extends out of the support sleeve 310 in the second direction. At this time, the outer peripheral wall surface of the flexible sleeve 340 is concave inward relative to the oilstone 330 in the second direction. When the cushion block 360 moves in the second direction away from the central axis of the support sleeve 310, the knife collection ring 390 can be stretched.

[0053] Start the motor 210. The motor 210 will drive the first wheel to rotate. The rotation of the first wheel can drive the second wheel to rotate, and then drive the rotating sleeve 370 to rotate. The rotation of the rotating sleeve 370 will drive the adjusting shaft 380, the supporting sleeve 310 and the multiple grinding parts 320 to rotate synchronously, so that the grinding parts 320 can grind the tubular structure 100.

[0054] After grinding is completed, the hydraulic telescopic cylinder 220 is started to drive the adjusting shaft 380 to move and reset along the first direction to the side away from the tubular structure 100. The movement of the adjusting shaft 380 will drive the adjusting cone 381 to move synchronously. Without the push of the adjusting cone 381, the knife collecting ring 390 will drive the cushion block 360 to move and reset along the second direction to the side close to the central axis of the supporting sleeve 310. The reset of the cushion block 360 will drive the oilstone 330 to move synchronously, so that the grinding piece 320 switches to the first state again, and then the first driving member is started to drive the entire grinding tool 300 to move and reset along the first direction to the side away from the tubular structure 100 through the first slide 202. During the reset process, the sponge layer 341 outside the flexible sleeve 340 can move along the inner wall of the tubular structure 100 and clean the inner wall of the tubular structure 100.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A polishing and cleaning device for a developable curved tubular structure, used for polishing and cleaning a tubular structure, characterized in that: It includes a frame and a grinding tool, the tubular structure and the grinding tool are both installed on the frame, the grinding tool can move toward or away from the tubular structure and extend into the tubular structure, and the direction in which the grinding tool moves toward or away from the tubular structure is called a first direction; the grinding tool includes a support sleeve and a plurality of grinding pieces; the support sleeve is arranged along the first direction, and the plurality of grinding pieces are evenly distributed on the support sleeve around the first direction; the grinding piece includes an oil stone and a flexible sleeve, the flexible sleeve is elastic, and the two ends of the flexible sleeve along the second direction are respectively fixed to the oil stone and the support sleeve, and the second direction is the radial direction of the support sleeve; A sealed cavity is defined between the flexible sleeve and the supporting sleeve; the oilstone can be movably installed on the supporting sleeve along the second direction; and the grinding tool can move on the frame along the second direction and the third direction, the third direction being the vertical direction; the grinding piece has a first state and a second state. When in the first state, the oilstone is retracted into the supporting sleeve along the second direction. At this time, the flexible sleeve protrudes outward and is tightened relative to the oilstone along the second direction. After the flexible sleeve enters the tubular structure along the first direction, it can abut against the inner wall of the tubular structure; the side close to the central axis of the supporting sleeve along the second direction is called the inner side, and the side away from the central axis of the supporting sleeve is called the outer side; when in the second state, the oilstone extends out of the supporting sleeve along the second direction. At this time, the flexible sleeve is recessed inward relative to the oilstone along the second direction. In the initial state, the grinding piece is in the first state; the grinding piece also includes a pad block, which is aligned with the oilstone A corresponding setting, the pad is located on the inner side of the oilstone and is fixedly connected to the oilstone, and the pad can be installed on the supporting sleeve so as to be movably along the second direction; the grinding tool also includes a rotating sleeve, an adjusting shaft and an adjusting cone, the rotating sleeve is installed on the frame and can rotate relative to the frame about the first direction, the supporting sleeve is installed on the rotating sleeve and can rotate synchronously with the rotating sleeve; the adjusting shaft is installed in the rotating sleeve, can rotate synchronously with the rotating sleeve and can move relative to the rotating sleeve along the first direction, the adjusting cone is located on the inner side of the pad, the adjusting cone is fixedly installed at one end of the adjusting shaft close to the supporting sleeve along the first direction, and the movement of the adjusting cone along the first direction can cause the pad to move along the second direction; the grinding tool also includes two knife collecting rings, the knife collecting rings are elastic, the two knife collecting rings are respectively installed at the two ends of the pad along the first direction and connect multiple pads evenly distributed around the first direction.

2. The polishing and cleaning device for a developable curved tubular structure according to claim 1, characterized in that: The flexible cover comprises a first layer and a second layer, wherein the first layer is located on the inner side of the second layer, the first layer is a rubber layer, and the second layer is a sponge layer.

3. The polishing and cleaning device for a developable curved tubular structure according to claim 1, characterized in that: The oil stone is wavy around two sides in the first direction.

4. The polishing and cleaning device for a developable curved tubular structure according to claim 1, characterized in that: A motor is fixedly arranged on the frame, an output end of the motor is fixedly connected with a first rotating wheel, a second rotating wheel is arranged on the rotating sleeve, and the first rotating wheel is meshed with the second rotating wheel.

5. The polishing and cleaning device for a developable curved tubular structure according to claim 4, characterized in that: A hydraulic telescopic cylinder is fixedly arranged on the frame, and the output end of the hydraulic telescopic cylinder extends into the rotating sleeve and is sleeved with the rotating sleeve. The adjusting shaft is connected to the output end of the hydraulic telescopic cylinder, and the adjusting shaft can rotate around a first direction relative to the output end of the hydraulic telescopic cylinder and move synchronously with the output end of the hydraulic telescopic cylinder.

6. The polishing and cleaning device for a developable curved tubular structure according to claim 1, characterized in that: A first slide rail is arranged on the frame, the first slide rail is arranged along a first direction, a first slide plate is arranged on the first slide rail, the first slide plate can slide along the first slide rail, and a rotating sleeve is installed on the first slide plate so that the rotating sleeve can move along the first direction.

7. The polishing and cleaning device for a developable curved tubular structure according to claim 6, characterized in that: The first slide plate is provided with a second slide rail, the second slide rail is provided along the second direction, the second slide plate is provided with a second slide rail, and the second slide plate can slide along the second slide rail; the second slide plate is connected with a bracket through a second elastic member, the second elastic member is provided along the third direction, and the rotating sleeve is installed on the bracket.

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