Automatic grinding machine for inner wall of III-type hydrogen storage bottle liner cylinder

Abstract

The utility model relates to the technical field of hydrogen storage bottle inner container manufacturing, in particular to an automatic grinding machine for the inner wall of a cylinder body of a type III hydrogen storage bottle inner container, a conveying assembly and a rotary pressing and transferring assembly are arranged in parallel, and a grinding feeding assembly is connected to the tail end of the rotary pressing and transferring assembly in the feeding direction; the conveying assembly is used for conveying the liner barrel to a waiting position; the rotary pressing and transferring assembly is used for turning over the liner barrel at the waiting position from the conveying assembly, transferring the liner barrel to the polishing position and limiting the liner barrel; the grinding feeding assembly is used for grinding the inner wall of the inner container cylinder at the machining position; the cooling water circulation assembly is used for automatically spraying water for cooling in the polishing process. The inner container barrel polishing machine is connected with the front conveying line and the rear conveying line of equipment, so that the inner container barrel can be automatically input into and output from an inner wall polishing station, water is automatically sprayed for cooling in the polishing process, the water storage tank is arranged at the bottom, only residual water in the water tank needs to be manually discharged, a large amount of manual feeding, discharging and carrying work is omitted, and the production efficiency is improved. And the grinding effect is good in consistency and high in compatibility.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing hydrogen storage bottle inner liner, in particular to an automatic grinding machine for the inner wall of a type III hydrogen storage bottle inner liner cylinder. Background Art

[0002] Currently, there are some equipment on the market for grinding the inner wall of the cylindrical shape. Most of them are special machines with low adaptability. Some of the grinding processes are done manually. The inner wall of the arc is long and narrow, and the shape is complex. During manual grinding, some areas may not be polished in place and the grinding quality cannot be guaranteed. The inner cylinder of the Type III hydrogen storage bottle is made of aluminum. The debris generated during the grinding process will cause harm to the human body. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an automatic grinding machine for the inner wall of the inner tank of a type III hydrogen storage bottle.

[0004] The specific technical solutions are as follows:

[0005] An automatic grinder for the inner wall of a type III hydrogen storage bottle inner cylinder comprises a grinding and feeding assembly, a rotary pressing and transferring assembly, a conveying assembly and a cooling water circulation assembly; the conveying assembly and the rotary pressing and transferring assembly are arranged in parallel, and the grinding and feeding assembly is connected to the end of the rotary pressing and transferring assembly in the feeding direction; the conveying assembly is used to convey the inner cylinder to a waiting position; the rotary pressing and transferring assembly is used to flip and transfer the inner cylinder at the waiting position from the conveying assembly to the grinding position and limit the position; the grinding and feeding assembly is used to grind the inner wall of the inner cylinder at the processing position; the cooling water circulation assembly is used to automatically spray water for cooling during the grinding process.

[0006] The grinding and feeding assembly includes a supporting frame A, a feeding mechanism, an electric spindle and a louver wheel; the feeding mechanism is installed at one end of the supporting frame A, and includes an axial feeding mechanism and a lateral adjustment mechanism, the lateral adjustment mechanism is installed on the axial feeding mechanism, and takes into account lateral adjustment while performing axial feeding; the electric spindle is fixedly connected to the lateral adjustment mechanism; the louver wheel is used for grinding and is installed at the output end of the electric spindle.

[0007] The axial feeding mechanism includes two linear guide rails A arranged in parallel along the axial direction, a servo motor and a pair of base frames. The pair of base frames are arranged across the linear guide rail A, and a rack is installed at the bottom of the base frame. A gear is installed at the output end of the servo motor. The gear and the rack cooperate to drive the base frame to move axially on the linear guide rail A.

[0008] The lateral adjustment mechanism includes two linear guide rails B, a support arm and a trapezoidal lead screw arranged in parallel along the lateral direction on the base frame; the bottom of the support arm slides in cooperation with the linear guide rail B and a fixed nut, and the nut cooperates with the trapezoidal lead screw to adjust the lateral adjustment sliding position.

[0009] The rotary pressing and transferring assembly comprises a supporting frame B, a main rolling shaft, an auxiliary rolling shaft, a pneumatic turning mechanism, an electric turning mechanism, a pressing mechanism and a rotary driving motor;

[0010] The main rolling shaft and the auxiliary rolling shaft are installed in parallel on the support frame B, and the main rolling shaft is installed on the side close to the conveying component through a seat bearing, and the auxiliary rolling shaft is installed on the side away from the conveying component through a support roller. The main rolling shaft and the auxiliary rolling shaft are connected by two structural members A with rolling bearings; the main rolling shaft is connected to the rotary drive motor through a sprocket and a chain to drive the rotation;

[0011] The pneumatic flip mechanism includes a flip cylinder, which is placed below the auxiliary rolling shaft. The fixed end of the flip cylinder is installed inside the support frame B, and the output shaft end is connected to the auxiliary rolling shaft through a set of structural parts B.

[0012] The electric flip mechanism includes an electric cylinder and a flip frame. The fixed end of the electric cylinder is hinged inside the support frame B, and the output end is fixed to the flip frame. The main rolling axis is used as the flip axis. Multiple groups of flip claws are evenly installed on the flip frame, and a stopper is installed at the end of the flip claw.

[0013] The clamping mechanism is used to limit the position of the inner tank cylinder in the vertical direction.

[0014] The clamping mechanism includes a clamping cylinder, a bracket and a clamping adjustment mechanism; the fixed end of the clamping cylinder is installed on the bracket, and the output end is downward, and the output end is connected to the arc-shaped pressure head, facing between the main rolling shaft and the auxiliary rolling shaft; the bottom of the bracket is installed on the support frame B through the clamping adjustment mechanism and is located on the outside of the auxiliary rolling shaft.

[0015] The clamping adjustment mechanism includes a sliding block and a linear guide rail C that slide in cooperation with each other. The bottom of the bracket is mounted on the sliding block, and the linear guide rail C is axially arranged on the outside of the auxiliary rolling shaft.

[0016] The overturning frame is provided with a baffle at the feeding end in the axial direction for stopping the inner liner cylinder.

[0017] The conveying assembly includes a profile frame, on which multiple groups of V-shaped rollers are evenly installed in the axial direction for supporting and conveying the inner liner cylinder. The groups of V-shaped rollers are connected by chains and sprockets, and the V-shaped rollers at the ends are concentrically connected to the output shaft of the conveying drive motor. Each group of V-shaped rollers is arranged in the gap of each group of flaps; a sensor is installed at each end of the profile frame for sensing the presence or absence of the inner liner cylinder.

[0018] The support frame A, support frame B and profile frame in the grinding and feeding assembly, the rotary pressing and transferring assembly and the conveying assembly are formed by welding rectangular steel pipes and steel plates, and adjustable height feet are installed at the bottom.

[0019] Compared with the prior art, the utility model has the following beneficial technical effects:

[0020] The utility model is connected with the front and rear conveyor lines of the equipment, so that the inner tank cylinder can be automatically input and output from the inner wall grinding station, and automatically sprays water for cooling during the grinding process. A water storage tank is arranged at the bottom, and it only needs to manually release the residual water in the tank, which eliminates a lot of manual loading, unloading and transportation work, and the grinding effect is consistent and has high compatibility.

[0021] The utility model realizes that the inner liner cylinder automatically reaches the specified position through the docking of the conveying roller with the front conveyor line roller, and the inner liner cylinder can be automatically moved to the grinding position through the electric turning mechanism of the inner wall automatic grinder. After automatic grinding through the design of automatic program, the pneumatic jacking device automatically turns the inner liner cylinder onto the electric turning mechanism, and the electric turning mechanism automatically transfers the inner liner cylinder to the conveying roller. The conveying roller automatically transports the ground inner liner cylinder to other work stations by docking with the conveyor line roller at the rear end, which greatly reduces the labor intensity of manual work and improves the grinding work efficiency.

[0022] The utility model improves the product coverage to within the range of 400mm-2500mm in length, 260mm-420mm in diameter, and 3mm-11mm in wall thickness through various adjustment mechanisms and stroke designs, thereby greatly improving the flexible coverage of the product and considerably reducing the cost expenditure of the client for product equipment with different inner wall grinding requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the grinding machine of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the grinding feed assembly of the grinding machine of the utility model;

[0025] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0026] Figure 4 This is a structural schematic diagram of the rotary pressing and transferring assembly of the utility model;

[0027] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0028] Figure 6 for Figure 4 A partial enlarged schematic diagram of point C in the middle;

[0029] Figure 7 for Figure 4A partial enlarged schematic diagram of point D in the middle;

[0030] Figure 8 It is a top view of the rotary pressing and transferring assembly of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of the conveying assembly of the utility model;

[0032] In the figure, 1. grinding feed assembly; 11. support frame A; 12. feed mechanism; 13. electric spindle; 14. louver wheel; 15. linear guide rail A; 16. servo motor; 17. base frame; 18. linear guide rail B; 19. support arm; 20. trapezoidal lead screw; 2. rotary pressing and transferring assembly; 21. support frame B; 22. main rolling shaft; 23. auxiliary rolling shaft; 24. pneumatic tipping mechanism; 25. electric flipping mechanism; 26. pressing mechanism; 27. pressing adjustment mechanism; 28. , support roller; 29, seat bearing; 210, structural part A; 211, baffle; 212, rotation drive motor; 213, bracket; 214, clamping cylinder; 215; arc pressure head; 216, linear guide C; 217, structural part B; 218, flip frame; 219, flip claw; 220, block; 3, conveying assembly; 31, profile frame; 32, V-shaped roller; 33, conveying drive motor; 34, sensor; 4, waiting position; 5, grinding position; 6, cooling water circulation assembly. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited by the accompanying drawings.

[0034] The utility model discloses an automatic grinding machine for the inner wall of the inner cylinder of a type III hydrogen storage bottle, comprising a grinding and feeding assembly 1, a rotary pressing and transferring assembly 2, a conveying assembly 3 and a cooling water circulation assembly 6; the conveying assembly 3 and the rotary pressing and transferring assembly 2 are arranged in parallel, and the grinding and feeding assembly 1 is connected to the end of the rotary pressing and transferring assembly 2 in the feeding direction; the conveying assembly 3 is used to convey the inner cylinder to the waiting position 4; the rotary pressing and transferring assembly 2 is used to flip and transfer the inner cylinder of the waiting position 4 from the conveying assembly 3 to the grinding position 5 and limit the position; the grinding and feeding assembly 1 is used to grind the inner wall of the inner cylinder of the processing position; the cooling water circulation assembly 6 is used to automatically spray water for cooling during the grinding process, and a water storage tank is arranged at the bottom, and the workers only need to release the residual water in the water tank for a certain period of time.

[0035] The above-mentioned grinding and feeding assembly 1 includes a supporting frame A11, a feeding mechanism 12, an electric spindle 13 and a louver wheel 14; the feeding mechanism 12 is installed at one end of the supporting frame A11, and includes an axial feeding mechanism and a lateral adjustment mechanism, and the lateral adjustment mechanism is installed on the axial feeding mechanism, taking into account lateral adjustment while performing axial feeding; the electric spindle 13 is fixedly connected to the lateral adjustment mechanism; the louver wheel 14 is used for grinding and is installed at the output end of the electric spindle 13.

[0036] The axial feeding mechanism includes two linear guide rails A15 arranged in parallel along the axial direction, a servo motor 16 and a pair of base frames 17. The pair of base frames 17 are arranged across the linear guide rail A15, and a rack is installed at the bottom of the base frame 17. A gear is installed at the output end of the servo motor 16. The gear and the rack cooperate to drive the base frame 17 to move axially on the linear guide rail A15.

[0037] The lateral adjustment mechanism includes two linear guide rails B18, a support arm 19 and a trapezoidal screw 20 arranged in parallel along the lateral direction on the base frame 17; the bottom of the support arm 19 slides in cooperation with the linear guide rail B18 and a fixed nut, and the nut cooperates with the trapezoidal screw 20 to adjust the lateral adjustment sliding position.

[0038] The above-mentioned rotary pressing and transferring assembly 2 comprises a supporting frame B21, a main rolling shaft 22, an auxiliary rolling shaft 23, a pneumatic tipping mechanism 24, an electric flipping mechanism 25, a pressing mechanism 26 and a rotary driving motor 212;

[0039] The main rolling shaft 22 and the auxiliary rolling shaft 23 are installed in parallel on the support frame B21, and the main rolling shaft 22 is installed on the side close to the conveying component 3 through the seat bearing 29, and the auxiliary rolling shaft 23 is installed on the side away from the conveying component 3 through the support roller 28. The main rolling shaft 22 and the auxiliary rolling shaft 23 are connected by two structural members A210 with rolling bearings; the main rolling shaft 22 is connected to the rotation drive motor 212 through a sprocket and a chain to drive the rotation;

[0040] The pneumatic flipping mechanism 24 includes a flipping cylinder, which is placed below the auxiliary rolling shaft 23. The fixed end of the flipping cylinder is installed inside the support frame B21, and the output shaft end is connected to the auxiliary rolling shaft 23 through a set of structural parts B217.

[0041] The electric flipping mechanism 25 includes an electric cylinder and a flipping frame 218. The fixed end of the electric cylinder is hinged inside the supporting frame B21, and the output end is fixed to the flipping frame 218, and the main rolling shaft 22 is used as the flipping axis. Multiple groups of flipping claws 219 are evenly installed on the flipping frame 218, and a stopper 220 is installed at the end of the flipping claw 219; a baffle 211 is installed at the feeding end in the axial direction of the flipping frame 218 to stop the inner liner cylinder.

[0042] The clamping mechanism 26 includes a clamping cylinder 214, a bracket 213 and a clamping adjustment mechanism 27; the fixed end of the clamping cylinder 214 is mounted on the bracket 213, the output end is downward, and the output end is connected to the arc-shaped pressure head 215, which is used to limit the non-compacted position of the inner liner cylinder in the vertical direction, facing between the main rolling shaft 22 and the auxiliary rolling shaft 23; the bottom of the bracket 213 is mounted on the support frame B21 through the clamping adjustment mechanism 27 and is located on the outside of the auxiliary rolling shaft 23. The clamping adjustment mechanism 27 includes a sliding block and a linear guide C216 that slide in cooperation, the bottom of the bracket 213 is mounted on the sliding block, and the linear guide C216 is axially arranged on the outside of the auxiliary rolling shaft 23.

[0043] The above-mentioned conveying assembly 3 includes a profile frame 31, on which a plurality of groups of V-shaped rollers 32 are evenly installed along the axial direction for supporting and conveying the inner liner cylinder. Each group of V-shaped rollers 32 is connected by chains and sprockets, and the V-shaped rollers 32 at the ends are concentrically connected to the output shaft of the conveying drive motor 33. Each group of V-shaped rollers 32 is arranged in the gap of each group of flaps 219; a sensor 34 is respectively installed at both ends of the profile frame 31 for sensing the presence or absence of the inner liner cylinder.

[0044] The support frame A11, support frame B21 and profile frame 31 in the grinding and feeding assembly 1, rotary pressing and transferring assembly 2 and conveying assembly 3 are formed by welding rectangular steel pipes and steel plates, and adjustable height feet are installed at the bottom.

[0045] When in use, the conveying drive motor 33 drives the V-shaped roller 32 to convey the III-type inner liner cylinder workpiece to be polished from one end of the profile frame 31 along the axial direction. At this time, the electric cylinder of the electric flip mechanism 25 is in the minimum stroke state. When the inner liner cylinder continues to be conveyed from the V-shaped roller 32, it is stopped by the baffle 211 when it reaches the other end of the profile frame 31. At this time, it is the waiting position 4. The sensors 34 at both ends of the profile frame 31 sense a signal, confirming that there is an inner liner cylinder, and feed back the signal to the conveying drive motor 33, and the conveying drive motor 33 stops rotating;

[0046] The output end of the electric cylinder in the electric turning mechanism 25 extends, causing the turning frame 218 to turn upward around the main rolling shaft 22, causing the inner cylinder to roll down to between the main rolling shaft 22 and the auxiliary rolling shaft 23, and then the output end of the electric cylinder returns to the initial position; the output end of the pressing cylinder 214 is pushed out, and the arc pressure head 215 limits the inner cylinder without compaction, which is the grinding position 5. The driving motor 212 starts to rotate, and driven by the sprocket and chain, the main rolling shaft 22 is driven to rotate actively, and the auxiliary rolling shaft 23 is driven to rotate; the inner cylinder rotates between the main rolling shaft 22 and the auxiliary rolling shaft 23, and is limited by the arc pressure head 215 without compaction.

[0047] The electric spindle 13 of the grinding and feeding assembly 1 rotates, driving the louver wheel 14 to rotate and grind, and at the same time, the axial feeding mechanism and the lateral adjustment mechanism move forward in the axial direction and adjust laterally. The lateral adjustment can be adjusted manually, or it can be automatically adjusted by adding a servo motor in the lateral direction. Formulas for products of different specifications are set in the equipment control system. One formula corresponds to parameter information of each position in the equipment of a set of products. Each product only needs to set parameters once, and the number can be directly called the next time it is produced. This embodiment is a manual adjustment for manually operating the trapezoidal screw.

[0048] When the louver wheel 14 contacts the inner cylinder, the grinding operation begins. With the axial feed grinding and the rotation of the inner cylinder, the grinding of the inner wall of the inner cylinder is gradually completed. After the grinding operation is completed, the axial feed mechanism returns to the initial position, the electric spindle 13 and the rotary drive motor 212 stop working, and the clamping cylinder 214 returns to the initial state.

[0049] The pneumatic tipping cylinder of the pneumatic tipping mechanism 24 extends out to send the inner liner cylinder back to the V-shaped roller 32 again; the baffle 211 of the turning frame 218 is retracted to release the stop on the inner liner cylinder, and driven by the conveying drive motor 33, the V-shaped roller 32 conveys the polished inner liner cylinder to other docking devices.

[0050] The automatic inner wall grinding machine of the inner tank of the Type III hydrogen storage bottle is connected to the front and rear conveyor lines of the equipment, so that the inner tank can be automatically input and output from the inner wall grinding station, and automatically spray water for cooling during the grinding process. A water storage tank is set at the bottom. Workers only need to release the residual water in the tank after a certain period of time, which eliminates a lot of manual loading and unloading work. The grinding effect is consistent and highly compatible. The surface roughness after grinding is not greater than Ra1.6.

Claims

1. An automatic grinding machine for the inner wall of a type III hydrogen storage bottle inner tank, characterized in that: The invention comprises a grinding and feeding assembly (1), a rotary pressing and transferring assembly (2), a conveying assembly (3) and a cooling water circulation assembly (6); the conveying assembly (3) and the rotary pressing and transferring assembly (2) are arranged in parallel, and the grinding and feeding assembly (1) is connected to the end of the rotary pressing and transferring assembly (2) in the feeding direction; the conveying assembly (3) is used to convey the inner liner cylinder to a waiting position (4); the rotary pressing and transferring assembly (2) is used to flip and transfer the inner liner cylinder at the waiting position (4) from the conveying assembly (3) to a grinding position (5) and limit the position; the grinding and feeding assembly (1) is used to grind the inner wall of the inner liner cylinder at the processing position; and the cooling water circulation assembly (6) is used to automatically spray water for cooling during the grinding process.

2. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 1 is characterized in that: The grinding feed assembly (1) comprises a support frame A (11), a feed mechanism (12), an electric spindle (13) and a louver wheel (14); the feed mechanism (12) is mounted on one end of the support frame A (11), and comprises an axial feed mechanism (12) and a lateral adjustment mechanism; the lateral adjustment mechanism is mounted on the axial feed mechanism (12), and takes into account lateral adjustment while performing axial feeding; the electric spindle (13) is fixedly connected to the lateral adjustment mechanism; the louver wheel (14) is used for grinding and is mounted on the output end of the electric spindle (13).

3. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 2 is characterized in that: The axial feeding mechanism (12) comprises two linear guide rails A (15) arranged in parallel along the axial direction, a servo motor (16) and a pair of base frames (17). The pair of base frames (17) are arranged across the linear guide rails A (15), and racks are installed at the bottom of the base frames (17). A gear is installed at the output end of the servo motor (16). The gear and the rack cooperate to drive the base frame (17) to move along the axial direction on the linear guide rail A (15).

4. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 2 is characterized in that: The lateral adjustment mechanism comprises two linear guide rails B (18) arranged in parallel in the lateral direction on a base frame (17), a support arm (19) and a trapezoidal lead screw (20); the bottom of the support arm (19) cooperates with the linear guide rail B (18) to slide, and a nut is fixed, and the nut cooperates with the trapezoidal lead screw (20) to adjust the lateral adjustment sliding position.

5. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 1 is characterized in that: The rotary pressing and transferring assembly (2) comprises a supporting frame B (21), a main rolling shaft (22), an auxiliary rolling shaft (23), a pneumatic turning mechanism, an electric turning mechanism (25), a pressing mechanism (26) and a rotary driving motor (212); The main rolling shaft (22) and the auxiliary rolling shaft (23) are installed in parallel on the support frame B (21), and the main rolling shaft (22) is installed on the side close to the conveying component (3) through a seat bearing (29), and the auxiliary rolling shaft (23) is installed on the side away from the conveying component (3) through a support roller (28), and the main rolling shaft (22) and the auxiliary rolling shaft (23) are connected by two structural members A (210) with rolling bearings; the main rolling shaft (22) is connected to a rotation drive motor (212) through a sprocket and a chain to drive the rotation; The pneumatic turning mechanism comprises a turning cylinder, which is placed below the auxiliary rolling shaft (23); the fixed end of the turning cylinder is installed inside the support frame B, and the output shaft end is connected to the auxiliary rolling shaft (23) through a set of structural parts B (217); The electric turning mechanism (25) comprises an electric cylinder and a turning frame (218), wherein the fixed end of the electric cylinder is hinged inside the supporting frame B (21), the output end is fixed to the turning frame (218), and the main rolling shaft (22) is used as the turning axis. A plurality of groups of turning claws (219) are evenly mounted on the turning frame (218), and a stopper (220) is mounted at the end of each turning claw (219); The clamping mechanism (26) is used to limit the position of the inner container cylinder in the vertical direction.

6. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 5 is characterized in that: The clamping mechanism (26) comprises a clamping cylinder (214), a bracket (213) and a clamping adjustment mechanism (27); the fixed end of the clamping cylinder (214) is mounted on the bracket (213), the output end is downwardly facing, the output end is connected to an arc-shaped pressure head (215), and faces between the main rolling shaft (22) and the auxiliary rolling shaft (23); the bottom of the bracket (213) is mounted on the support frame B (21) through the clamping adjustment mechanism (27) and is located outside the auxiliary rolling shaft (23).

7. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 6 is characterized in that: The clamping adjustment mechanism (27) comprises a sliding block and a linear guide rail C (216) that slide in cooperation with each other. The bottom of the bracket (213) is mounted on the sliding block, and the linear guide rail C (216) is axially arranged on the outside of the auxiliary rolling shaft (23).

8. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 5 is characterized in that: The turning frame (218) is provided with a baffle (211) at the feeding end in the axial direction, for stopping the inner liner cylinder.

9. The automatic grinding machine for the inner wall of the inner liner of the type III hydrogen storage bottle according to claim 1 is characterized in that: The conveying assembly (3) comprises a profile frame (31), on which a plurality of groups of V-shaped rollers (32) are evenly mounted in an axial direction for supporting and conveying the inner liner cylinder, each group of V-shaped rollers (32) is connected by a chain and a sprocket, and the V-shaped rollers (32) at the ends are concentrically connected to the output shaft of the conveying drive motor (33), and each group of V-shaped rollers (32) is arranged in the gap between each group of turning claws (219); a sensor (34) is respectively mounted at both ends of the profile frame (31) for sensing the presence or absence of the inner liner cylinder.

10. The automatic grinding machine for the inner wall of the inner liner of a type III hydrogen storage bottle according to claim 1 is characterized in that: The support frame A (11), the support frame B (21) and the profile frame (31) in the grinding and feeding assembly (1), the rotary pressing and transferring assembly (2) and the conveying assembly (3) are formed by welding rectangular steel pipes and steel plates, and adjustable height feet are installed at the bottom.

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