Door closing oil cylinder barrel polishing device with double-wall polishing structure

Abstract

The door closing oil cylinder barrel polishing device with the double-wall polishing structure comprises a base protection structure, a synchronous polishing structure is fixed to the interior of the base protection structure, and a clamping polishing structure is fixed to the interior of the base protection structure; the base protection structure comprises a hollow machine body frame with a through hole plate fixedly welded inside, a conveying hopper connected with the through hole plate is fixedly welded to the bottom of the hollow machine body frame, meanwhile, a containing groove and a sliding groove are formed in the front portion and the upper portion of the hollow machine body frame correspondingly, and a negative pressure machine is fixed inside the containing groove. The door closing oil cylinder barrel polishing device comprises a conveying hopper, a negative pressure machine is arranged in the conveying hopper and connected with the conveying hopper through a connecting pipe, meanwhile, the negative pressure machine penetrates through one containing groove through a connecting pipe and extends into the other containing groove, a sliding groove is slidably connected with a sliding block, and a transparent protective cover is fixed to the sliding block. And through the formed storage groove, mounting, fixing, storage and collection are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of door-closing oil cylinders, in particular to a door-closing oil cylinder barrel polishing device with a double-wall polishing structure. Background Art

[0002] The oil cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The tailgate of a car needs to be driven by an oil cylinder at the moment of opening and closing the door. The cylinder barrel is the main body of the hydraulic cylinder. Its inner hole is generally manufactured by precision processing processes such as boring, reaming, rolling or honing, so that the piston and its seals and supporting parts can slide smoothly, thereby ensuring In order to ensure the sealing effect and reduce wear, the cylinder has to withstand a large hydraulic pressure, so it should have sufficient strength and rigidity. At the same time, in order to ensure the smoothness of its inner wall, it is necessary to polish its inner wall during the cylinder processing and manufacturing process. Therefore, a polishing device is required. The existing cylinder polishing device can generally only polish the inner wall of the cylinder, but cannot polish the inner and outer walls of the cylinder simultaneously. At the same time, the existing polishing device needs to clamp the outer wall of the cylinder before polishing the cylinder, so there is a situation where the clamping part of the outer wall of the cylinder cannot be polished in place. Summary of the invention

[0003] The purpose of the present invention is to address the shortcomings of the prior art and provide a closing cylinder barrel polishing device with a double-wall polishing structure to solve the problem that the existing cylinder barrel polishing device proposed in the above background technology can generally only polish the inner wall of the cylinder barrel, but cannot simultaneously polish the inner and outer walls of the cylinder barrel. At the same time, the existing polishing device needs to clamp the outer wall of the cylinder barrel before polishing the cylinder barrel, which may result in the situation that the clamping part of the outer wall of the cylinder barrel cannot be polished in place.

[0004] To achieve the above object, the present invention provides the following technical solution: a door closing cylinder barrel polishing device with a double-wall polishing structure, comprising a base protection structure, a synchronous polishing structure is fixed inside the base protection structure, and a clamping polishing structure is fixed inside the base protection structure;

[0005] The base protection structure includes a hollow body frame with a through-hole plate welded and fixed inside, and a conveying bucket connected to the through-hole plate is welded and fixed at the bottom of the hollow body frame, and a storage groove and a slide groove are respectively opened in front and above the hollow body frame;

[0006] A negative pressure machine is fixed inside the receiving groove, and the negative pressure machine is installed and connected with the conveying bucket through a connecting pipe. At the same time, the negative pressure machine also penetrates the receiving groove through the connecting pipe and extends to the inside of another receiving groove.

[0007] By adopting the above technical solution, the storage groove is opened to achieve installation, fixing, storage and collection.

[0008] Preferably, the slide groove is slidably connected to the slider, and a transparent protective cover is fixed on the slider, and the transparent protective cover is arranged in a relatively sliding docking manner.

[0009] By adopting the above technical solution, the transparent protective cover is provided to provide covering protection.

[0010] Preferably, the synchronous polishing structure includes a driving component for adjusting the driving of the polishing component, and the driving component includes a bearing plate with a driving motor fixed at the bottom, and a driving pulley is fixed to the output end of the driving motor, and the bearing plate is rotatably installed with a driven pulley through a connecting shaft, and the driven pulley is connected to the driving pulley through a belt transmission, and the driven pulley is fixedly connected to one end of the through-hole connecting plate through the connecting shaft, and the other end of the through-hole connecting plate is rotatably connected to the rack through a connecting pin.

[0011] By adopting the above technical solution, the drive meshing adjustment is achieved through the arranged rack.

[0012] Preferably, a mounting shaft is fixed at the lower side of the bearing plate, and a connecting groove is penetrated through the mounting shaft, and a concave bearing block is rotatably mounted on the mounting shaft, a T gear is rotatably mounted at the bottom of the concave bearing block, and a mounting ring is fixed at the bottom of the T gear, and a first bevel gear is fixed at the bottom of the T gear.

[0013] By adopting the above technical solution, the installation axis is provided to achieve opening and installation fixation.

[0014] Preferably, the mounting shaft is rotatably connected to the driven bevel gear set through a connecting groove and a rotating connecting shaft, and a second bevel gear is rotatably mounted on the bottom of the mounting shaft, and another mounting ring is fixed to the bottom of the second bevel gear, and the driven bevel gear set is meshed with the first bevel gear and the second bevel gear respectively, and one end of the rack passes through the concave bearing block and is meshed with the T gear.

[0015] By adopting the above technical solution, the inner and outer rings are installed and fixed by the provided installation ring.

[0016] Preferably, one side of the bearing plate is fixedly connected to the adjustment plate via a fixing column, and the adjustment plate is fixedly connected to the linear motor group, and the linear motor group is fixed to the inner side of the hollow body frame.

[0017] By adopting the above technical solution, the linear motor group is set to achieve relative control drive adjustment.

[0018] Preferably, the adjusting polishing assembly includes a groove plate with an installation groove, and the groove plate is symmetrically provided with guide grooves inside the installation groove, and the interior of the groove plate is fixedly connected to one end of the installation spring, a guide block is slidingly provided inside the guide groove, and T-shaped blocks are fixed between the guide blocks, and a threaded cylinder threadedly connected to the polishing rod is fixed at the bottom of the T-shaped block, and the groove plate is welded and fixed to the surface of the installation ring.

[0019] By adopting the technical solution, the polishing rod is provided to achieve quick installation and disassembly.

[0020] Preferably, the clamping and polishing structure includes a through-hole disk with a bearing block fixed on the surface, and a ball screw is rotated on the through-hole disk through the bearing block. At the same time, a ball nut for driving and adjusting is penetrated through the surface of the ball screw. The rear side of the ball nut is rotatably connected to the adjustment ring of the through-hole mounting plate through a connecting pin, and the ball screw is driven and adjusted by an output motor.

[0021] By adopting the above technical solution, rotation adjustment is achieved through the arranged adjustment ring.

[0022] Preferably, a through frame is rotatably installed in the adjustment ring, and a through-hole concave plate with sliding adjustment passes through the through-hole concave plate. At the same time, one end of the through-hole concave plate is rotatably connected to the surface of the through-hole disk through a connecting pin, and an electric driving wheel is rotatably installed at the other end of the through-hole concave plate, and a polishing belt is fixed to the surface of the electric driving wheel.

[0023] By adopting the above technical solution, the drive is controlled by the provided electric drive wheel.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the door closing oil cylinder barrel polishing device with a double-wall polishing structure,

[0025] (1) This case solves the problem that the existing cylinder polishing device can only polish the inner wall of the cylinder, but cannot synchronously polish the inner and outer walls of the cylinder, by setting an adjustment polishing component in the synchronous polishing structure. When the cylinder needs to be polished, the operator clamps the surface of the cylinder using the clamping polishing structure. At this time, the operator controls the linear motor group to operate so that the polishing rod approaches the two ends of the cylinder and then stops the operation of the linear motor group. Then the operator holds the polishing rod so that the polishing rod is relatively close to the end of the cylinder and then releases the polishing rod. At this time, the polishing rod contacts the inner wall of the cylinder. When the inner wall of the cylinder contacts the polishing rod, the other polishing rod synchronously contacts the outer wall of the cylinder. When the inner and outer walls of the cylinder are in contact with the polishing rod, the inner and outer walls of the cylinder are synchronously polished by adjusting the relative rotation of the polishing rod.

[0026] (2) By setting: a clamping and polishing structure, the problem is solved that the existing polishing device needs to clamp the outer wall of the cylinder before polishing the cylinder, so that the clamping part of the outer wall of the cylinder cannot be polished in place. When the cylinder is polished, the cylinder passes through the through-hole plate and the adjustment ring, and the output motor is controlled to drive the adjustment ring to rotate under force through the ball nut during operation. When the adjustment ring rotates under force, the outer wall of the cylinder is clamped by the electric drive wheel. After the outer wall of the cylinder is clamped, the electric drive wheel is controlled to rotate under force and drive the polishing belt to polish the clamping part of the outer wall of the cylinder;

[0027] (3) The synchronous polishing structure is provided with a driving assembly, thereby solving the problem that the adjustment polishing assembly cannot be relatively driven and relatively rotated under force. When polishing cylinders of different lengths, the operator first controls the linear motor group to drive the adjustment plate to move under force, and during the adjustment plate's movement under force, the bearing plate is driven to be relatively driven and adjusted. When the bearing plate is relatively driven under force, the relative interval distance between the adjustment polishing assemblies is changed to facilitate the polishing of cylinders of different lengths. When the driving motor is running, the rack is driven to rotate under force through the driven pulley. When the rack is rotated under force, the T gear is synchronously rotated under force. When the T gear is rotated under force, the first bevel gear and the second bevel gear are driven to relatively rotate under force. When the first bevel gear and the second bevel gear are relatively rotated under force, the adjustment polishing assembly is driven to rotate under force to perform synchronous polishing on the inner and outer walls of the cylinder;

[0028] (4) By setting up: a base protection structure, the problem of some dust particles being generated during the cylinder polishing process is solved. When the cylinder is clamped and contacted with the polishing rod, the transparent protective cover is pulled to slide relative to the cylinder. When the transparent protective cover is adjusted to slide relative to the cylinder, it plays a protective role for the cylinder polishing. In addition, during the cylinder polishing process, the negative pressure machine is controlled to operate and the dust particles generated are transported to the collection tank for collection, so as to avoid the dust from spreading happily.

[0029] (5) By adjusting the settings of the polishing assembly: the threaded barrel and the polishing rod, the problem that the existing polishing rod cannot be disassembled and replaced, resulting in the inability to polish the inner and outer walls of cylinder barrels of different lengths, is solved. When polishing cylinder barrels of different lengths, the operator rotates the polishing rod and the threaded barrel are separated by force. When the polishing rod and the threaded barrel are separated by force, it is convenient to connect the polishing rods of different lengths to the threaded barrel through threads, so that the inner and outer walls of cylinder barrels of different lengths can be polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the hollow body frame, through-hole plate, slide groove and slider of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the hollow machine frame, conveying bucket, storage tank, negative pressure machine and transparent protective cover of the present invention;

[0033] Figure 4 It is a schematic diagram of the synchronous polishing structure of the present invention;

[0034] Figure 5 It is a partial structural schematic diagram of the bearing plate, driving motor, driving pulley, driven pulley, belt, through-hole connection, rack, mounting shaft, concave bearing block, adjustment plate and linear motor group of the present invention;

[0035] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0036] Figure 7 This is a schematic diagram of the bearing plate structure of the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the groove plate, guide groove, mounting spring, T-shaped block, threaded cylinder and polishing rod of the present invention;

[0038] Fig. 9 This is a schematic diagram of the guide block and T-shaped block structure of the present invention;

[0039] Fig.10 This is a schematic diagram of the clamping and polishing structure of the present invention;

[0040] Fig.11 It is a schematic diagram of the structure of the through-hole plate and the adjustment ring of the present invention.

[0041] In the figure: 1. base protection structure; 101. hollow body frame; 102. through-hole plate; 103. conveying bucket; 104. storage slot; 105. slideway; 106. negative pressure machine; 107. slider; 108. transparent protective cover; 2. synchronous polishing structure; 201. drive assembly; 2011. bearing plate; 2012. drive motor; 2013. driving pulley; 2014. driven pulley; 2015. belt; 2016. through-hole connecting plate; 2017. rack; 2018. mounting shaft; 2019. concave bearing block; 20110. T gear; 20111. mounting ring; 20112. first bevel gear; 20113. rotating Connecting shaft; 20114, driven bevel gear set; 20115, second bevel gear; 20116, adjustment plate; 20117, linear motor set; 202, adjustment polishing assembly; 2021, groove plate; 2022, guide groove; 2023, mounting spring; 2024, guide block; 2025, T-block; 2026, threaded cylinder; 2027, polishing rod; 3, clamping polishing structure; 301, through-hole disk; 302, ball screw; 303, ball nut; 304, through-hole mounting plate; 305, adjustment ring; 306, through-frame; 307, through-hole concave plate; 308, electric drive wheel; 309, polishing belt; 3010, output motor. DETAILED DESCRIPTION

[0042] 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.

[0043] See also Figure 1-11 The present invention provides a technical solution: a door closing cylinder polishing device with a double-wall polishing structure, such as Figure 1 , Figure 2 and Figure 3 As shown, the base protection structure 1 includes a hollow body frame 101 with a through-hole plate 102 welded and fixed inside, and a conveying bucket 103 connected to the through-hole plate 102 is welded and fixed at the bottom of the hollow body frame 101, and a receiving groove 104 and a slide groove 105 are respectively opened in front and above the hollow body frame 101, wherein the receiving groove 104 and the slide groove 105 are both arranged in a group, and when the receiving groove 104 is opened in a group, it is convenient to install and fix the negative pressure machine 106 and collect the dust particles.

[0044] Furthermore, in the above scheme, a negative pressure machine 106 is fixed inside the storage groove 104, and the negative pressure machine 106 is installed and connected with the conveying bucket 103 through a connecting pipe. At the same time, the negative pressure machine 106 also penetrates the storage groove 104 through the connecting pipe and extends to the inside of another storage groove 104.

[0045] Furthermore, in the above scheme, the slide groove 105 is slidably connected to the slider 107, and a transparent protective cover 108 is fixed on the slider 107. At the same time, the transparent protective cover 108 is arranged in a relative sliding docking manner, wherein the above components constitute a relative sliding adjustment structure, and the relative sliding adjustment structure constituted by the above components can effectively change the relative sliding interval distance of the transparent protective cover 108.

[0046] In the above solution, when the cylinder needs to be polished, the operator pushes the transparent protective cover 108 to slide relatively and adjust, and then clamps and fixes the cylinder in the clamping and polishing structure 3.

[0047] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a synchronous polishing structure 2 is fixed inside the base protection structure 1, and the synchronous polishing structure 2 includes a driving component 201 for driving and adjusting the polishing component 202, and the driving component 201 includes a bearing plate 2011 with a driving motor 2012 fixed at the bottom, and a driving pulley 2013 is fixed to the output end of the driving motor 2012, and the bearing plate 2011 is rotatably installed with a driven pulley 2014 through a connecting shaft, and the driven pulley 2014 is transmission-connected to the driving pulley 2013 through a belt 2015, and the driven pulley 2014 is fixedly connected to one end of a through-hole connecting plate 2016 through a connecting shaft, and the other end of the through-hole connecting plate 2016 is rotationally connected to a rack 2017 through a connecting pin, wherein the above-mentioned components constitute a rotating driving structure, and the rotating driving structure constituted by the above-mentioned components can effectively drive and adjust the rack 2017.

[0048] Furthermore, in the above scheme, a mounting shaft 2018 is fixed at the lower side of the bearing plate 2011, and a connecting groove is penetrated through the mounting shaft 2018, and a concave bearing block 2019 is rotatably mounted on the mounting shaft 2018, a T gear 20110 is rotatably mounted at the bottom of the concave bearing block 2019, and a mounting ring 20111 is fixed at the bottom of the T gear 20110, and a first bevel gear 20112 is fixed at the bottom of the T gear 20110.

[0049] Furthermore, in the above scheme, the mounting shaft 2018 is rotationally connected to the driven bevel gear set 20114 through a connecting groove and a rotating connecting shaft 20113, and a second bevel gear 20115 is rotationally installed at the bottom of the mounting shaft 2018, and another mounting ring 20111 is fixed to the bottom of the second bevel gear 20115, and the driven bevel gear set 20114 is meshedly connected with the first bevel gear 20112 and the second bevel gear 20115 respectively, and one end of the rack 2017 passes through the concave bearing block 2019 and is meshedly connected with the T gear 20110, wherein the first bevel gear 20112, the second bevel gear 20115 and the driven bevel gear set 20114 constitute a meshing quadrilateral structure, and the meshing quadrilateral structure constituted by the above-mentioned components effectively plays a role in meshing aesthetics and synchronous meshing adjustability.

[0050] Furthermore, in the above scheme, one side of the bearing plate 2011 is fixedly connected to the adjustment plate 20116 via a fixing column, and the adjustment plate 20116 is fixedly connected to the linear motor group 20117 , and the linear motor group 20117 is fixed to the inner side of the hollow body frame 101 .

[0051] like Figure 8 and Fig. 9 As shown, the adjusting polishing assembly 202 includes a groove plate 2021 with a mounting groove, and the groove plate 2021 is symmetrically provided with guide grooves 2022 inside the mounting groove, and the groove plate 2021 is fixedly connected to one end of the mounting spring 2023 inside, and a guide block 2024 is slidingly provided inside the guide groove 2022, and a T-shaped block 2025 is fixed between the guide blocks 2024, and a threaded cylinder 2026 threadedly connected to the polishing rod 2027 is fixed at the bottom of the T-shaped block 2025, and the groove plate 2021 is welded and fixed to the surface of the mounting ring 20111, wherein the above-mentioned components constitute an elastic adjustment limiting structure, and the elastic adjustment limiting structure constituted by the above-mentioned components can effectively change the relative elastic sliding interval distance between the polishing rods 2027, thereby facilitating the polishing process of cylinders with different diameters.

[0052] like Fig.10 and Fig.11As shown, a clamping and polishing structure 3 is fixed inside the base protection structure 1, and the clamping and polishing structure 3 includes a through-hole disk 301 with a bearing block fixed on the surface, and a ball screw 302 is rotated on the through-hole disk 301 through the bearing block, and a ball nut 303 for driving and adjusting is penetrated on the surface of the ball screw 302, and the rear side of the ball nut 303 is rotatably connected to an adjusting ring 305 with a through-hole mounting plate 304 through a connecting pin, and the ball screw 302 is driven and adjusted by an output motor 3010, wherein the adjusting ring 305 is installed in the form of superimposed adjusting rings 305, and the superimposed adjusting rings 305 are fixedly installed at intervals through fixing columns, and when the adjusting rings 305 are installed and fixed in a superimposed manner, the rotation installation of the through frame 306 and the force rotation adjustment of the adjusting rings 305 are effectively facilitated, and the above-mentioned components constitute a driving rotation structure, and the driving rotation structure constituted by the above-mentioned components is effectively changed. The rotation direction of the adjusting ring 305 is effectively changed.

[0053] Furthermore, in the above scheme, a through frame 306 is rotatably installed in the adjusting ring 305, and a through hole concave plate 307 with sliding adjustment is penetrated in the through frame 306, and at the same time, one end of the through hole concave plate 307 is rotatably connected to the surface of the through hole disk 301 through a connecting pin, and an electric drive wheel 308 is rotatably installed on the other end of the through hole concave plate 307, and a polishing belt 309 is fixed on the surface of the electric drive wheel 308, wherein the above components constitute a relative rotation structure, and the relative rotation structure constituted by the above components is used to effectively clamp and rotate and polish the outer walls of cylinders of different diameters.

[0054] In the above scheme, after the transparent protective cover 108 is opened, the operator controls the cylinder to pass through the through-hole disk 301 and the adjusting ring 305, and then controls the output motor 3010 to drive the adjusting ring 305 to rotate under force through the ball nut 303 during operation. When the adjusting ring 305 rotates under force, the outer wall of the cylinder can be clamped by the electric driving wheel 308. Then the operator controls the linear motor group 20117 to operate and make the polishing rod 2027 approach the two ends of the cylinder, and then the operation of the linear motor group 20117 is paused. Then the operator holds the polishing rod 2027 so that the polishing rod 2027 is relatively close to the inside of the cylinder and then releases the polishing rod 2027. At this time, the polishing rod 2027 contacts the inner wall of the cylinder. When the inner wall of the cylinder contacts the polishing rod 2027, the other polishing rod 2027 contacts the outer wall of the cylinder synchronously. When the cylinder After the inner and outer walls are in contact with the polishing rod 2027, the operator synchronously controls the electric drive wheel 308 and the drive motor 2012 to operate. During the operation of the drive motor 2012, the rack 2017 is driven to rotate by the driven pulley 2014. When the rack 2017 is rotated under force, the T gear 20110 is synchronously forced to rotate. When the T gear 20110 is rotated under force, the first bevel gear 20112 and the second bevel gear 20115 are forced to rotate relative to each other for adjustment. When the first bevel gear 20112 and the second bevel gear 20115 are forced to rotate relative to each other for adjustment, the polishing rod 2027 is driven to rotate to synchronously polish the inner and outer walls of the cylinder. The dust particles generated during the polishing process are transported to the collection tank 104 during the operation of the negative pressure machine 106.

[0055] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0056] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A door closing cylinder barrel polishing device with a double-wall polishing structure, characterized in that: It comprises a base protection structure (1), a synchronous polishing structure (2) is fixed inside the base protection structure (1), and a clamping polishing structure (3) is fixed inside the base protection structure (1); The base protection structure (1) comprises a hollow body frame (101) with a through-hole plate (102) welded and fixed inside, and a conveying bucket (103) connected to the through-hole plate (102) is welded and fixed at the bottom of the hollow body frame (101), and a storage groove (104) and a slide groove (105) are respectively opened in front and above the hollow body frame (101); A negative pressure machine (106) is fixed inside the receiving groove (104), and the negative pressure machine (106) is installed and connected with the conveying bucket (103) through a connecting pipe. At the same time, the negative pressure machine (106) also penetrates the receiving groove (104) through the connecting pipe and extends into the inside of another receiving groove (104).

2. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 1, characterized in that: The slide groove (105) is slidably connected to the slider (107), and a transparent protective cover (108) is fixed on the slider (107), and the transparent protective cover (108) is arranged in a relatively slidable docking manner.

3. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 1, characterized in that: The synchronous polishing structure (2) comprises a driving component (201) for driving and adjusting the polishing component (202), and the driving component (201) comprises a bearing plate (2011) with a driving motor (2012) fixed at the bottom, and a driving pulley (2013) is fixed at the output end of the driving motor (2012), and the bearing plate (2011) is rotatably mounted with a driven pulley (2014) via a connecting shaft, and the driven pulley (2014) is transmission-connected to the driving pulley (2013) via a belt (215), and the driven pulley (2014) is fixedly connected to one end of a through-hole connecting plate (2016) via a connecting shaft, and the other end of the through-hole connecting plate (2016) is rotationally connected to a rack (2017) via a connecting pin.

4. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 3 is characterized in that: A mounting shaft (2018) is fixed below one side of the bearing plate (2011), and a connecting groove is penetrated through the mounting shaft (2018), and a concave bearing block (2019) is rotatably mounted on the mounting shaft (2018), a T gear (20110) is rotatably mounted on the bottom of the concave bearing block (2019), and a mounting ring (20111) is fixed at the bottom of the T gear (20110), and a first bevel gear (20112) is fixed at the bottom of the T gear (20110).

5. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 4, characterized in that: The installation shaft (2018) is rotationally connected to the driven bevel gear set (20114) through a connecting groove and a rotating connecting shaft (20113), and a second bevel gear (20115) is rotationally installed at the bottom of the installation shaft (2018), and another installation ring (20111) is fixed to the bottom of the second bevel gear (20115), and the driven bevel gear set (20114) is meshedly connected with the first bevel gear (20112) and the second bevel gear (20115) respectively, and one end of the rack (2017) passes through the concave bearing block (2019) and is meshedly connected with the T gear (20110).

6. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 3, characterized in that: One side of the bearing plate (2011) is fixedly connected to the adjustment plate (20116) via a fixing column, and the adjustment plate (20116) is fixedly connected to the linear motor group (20117), while the linear motor group (20117) is fixed to the inner side of the hollow machine body frame (101).

7. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 3, characterized in that: The adjusting polishing assembly (202) comprises a groove plate (2021) with a mounting groove, and the groove plate (2021) is symmetrically provided with a guide groove (2022) through the inside of the mounting groove, and the inside of the groove plate (2021) is fixedly connected to one end of the mounting spring (2023), and a guide block (2024) is slidably provided inside the guide groove (2022), and a T-shaped block (2025) is fixed between the guide blocks (2024), and a threaded cylinder (2026) threadedly connected to the polishing rod (2027) is fixed at the bottom of the T-shaped block (2025), and the groove plate (2021) is fixed to the surface of the mounting ring (20111) by welding.

8. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 7, characterized in that: The clamping and polishing structure (3) comprises a through-hole disk (301) with a bearing block fixed on the surface, and a ball screw (302) is rotated on the through-hole disk (301) through the bearing block, and a ball nut (303) for driving and adjusting is penetrated through the surface of the ball screw (302), and the rear side of the ball nut (303) is rotatably connected to an adjustment ring (305) of a through-hole mounting plate (304) through a connecting pin, and the ball screw (302) is driven and adjusted by an output motor (3010).

9. The door closing cylinder barrel polishing device with a double-wall polishing structure according to claim 8, characterized in that: A through frame (306) is rotatably mounted in the adjusting ring (305), and a through hole concave plate (307) for sliding adjustment is provided through the through frame (306). At the same time, one end of the through hole concave plate (307) is rotatably connected to the surface of the through hole disk (301) through a connecting pin, and an electric driving wheel (308) is rotatably mounted on the other end of the through hole concave plate (307), and a polishing belt (309) is fixed on the surface of the electric driving wheel (308).

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