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

Abstract

The utility model relates to the technical field of III-type hydrogen storage cylinder inner container manufacturing, in particular to an automatic grinding machine for the outer wall of a cylinder body of an III-type hydrogen storage cylinder inner container, which comprises a rack, a rolling assembly, an end blocking assembly, a grinding assembly, a pressing assembly and a cooling water circulating assembly, the end blocking assembly is used for conducting axial coarse positioning on the inner container barrel. The inner container barrel is limited by the pressing assembly, the rolling assembly drives the inner container barrel to rotate, the grinding assembly is used for grinding the outer wall of the inner container barrel, and the cooling water circulation assembly is used for automatically spraying water for cooling in the grinding process. By being connected with conveying devices such as an inner container transfer truss, the inner container barrel can be automatically input into and output from an outer wall polishing station, water is automatically sprayed for cooling in the polishing process, the polishing efficiency and consistency are greatly improved, the inner container polishing machine can be compatible with inner containers with different diameters and different lengths, multiple purposes are achieved, and the production cost is reduced. And an upper space is reserved to make a good avoiding space for automatic feeding and discharging of the conveying truss of the inner container.

Description

Technical Field

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

[0002] Currently, there are some equipment on the market for grinding the outer wall of the cylindrical shape. Most of them are special machines with low adaptability. Some of the grinding processes are done manually. The shapes are complex. Some areas may not be polished properly during manual grinding 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 outer wall of the inner shell of a type III hydrogen storage bottle.

[0004] The specific technical solutions are as follows:

[0005] An automatic grinding machine for the outer wall of the inner cylinder of a type III hydrogen storage bottle comprises a frame, a rolling assembly, an end blocking assembly, a grinding assembly, a pressing assembly and a cooling water circulation assembly; the grinding assembly is mounted on the outside of the rolling assembly; the end blocking assembly is arranged at the end of the rolling assembly, and is used for performing rough axial positioning of the inner cylinder; the inner cylinder is transported to the rolling assembly by a manipulator, and one end of the inner cylinder is supported by the end blocking assembly; the inner cylinder is limited by the pressing assembly, and the rolling assembly drives the inner cylinder to rotate, the grinding assembly is used for grinding the outer wall of the inner cylinder, and the cooling water circulation assembly is used for automatically spraying water for cooling during the grinding process, and is placed on the side of the frame without a hard connection with the main body of the equipment.

[0006] The roller centers of the main roller and the slave roller are at the same height.

[0007] The end blocking assembly comprises a blocking cylinder and a blocking plate. The blocking cylinder is installed between the main roller and the slave roller and close to one end of the driving mechanism. The telescopic end of the blocking cylinder extends horizontally and the end is connected to the blocking plate.

[0008] The grinding assembly includes an axial feed assembly, a radial feed assembly, an electric spindle, a louver wheel and a linear guide A; the axial feed assembly is installed on the outside of the rolling assembly and is used for axial feeding during grinding; the radial feed assembly is installed above the axial feed assembly and takes into account radial adjustment while performing axial feeding; the electric spindle is fixed to the radial feed assembly through an L-shaped frame, and the output shaft is parallel to the main roller; the louver wheel is used for grinding and is installed at the output end of the electric spindle.

[0009] The axial feed assembly includes two linear guides A arranged in parallel along the axial direction, a servo motor A and a base frame. The base frame spans over the two linear guides A, a rack is installed at the bottom, and a gear is installed at the output end of the servo motor A. The gear and the rack cooperate to drive the base frame to move axially on the linear guide A.

[0010] The radial feed assembly includes two linear guides B perpendicular to the linear guide A, a support arm, and a servo motor B. The support arm spans over the two linear guides B and the bottom cooperates with the linear guide B to slide. The servo motor B is installed at one end of the base frame in the radial direction, the output shaft is connected to the ball screw, a nut is installed at the bottom of the support arm, and the nut cooperates with the ball screw to radially adjust the sliding position.

[0011] A limiting plate is vertically installed at both ends of the support arm in the radial direction.

[0012] The clamping assembly includes a bracket, a slider, a linear guide C, a clamping cylinder and a clamping roller; the linear guide C is axially arranged on the inner side of the rolling assembly; 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 clamping roller, which is located opposite to the main roller and the slave roller, pressing down the inner liner cylinder without limiting the freedom of axial rotation; a slider is installed at the bottom of the bracket, and the slider slides in cooperation with the linear guide C.

[0013] A protective cover is arranged around the rear of the louver wheel.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The utility model proposes an automatic outer wall grinder, which is connected with a conveying device such as an inner liner transfer truss, so that the inner liner cylinder can be automatically input and output to the outer wall grinding station, and automatically sprays water for cooling during the grinding process. A water storage tank is arranged at the bottom, and workers only need to release the residual water in the tank after a certain period of time, which greatly increases the grinding efficiency and consistency, and is compatible with inner liner of different diameters and lengths, so that one machine can be used for multiple purposes, and upper space is reserved to provide good avoidance space for automatic loading and unloading of the conveying truss of the inner liner.

[0016] The utility model type III hydrogen storage bottle inner tank cylinder outer wall automatic grinding machine improves the product coverage to: length 400mm-2500mm, diameter 260mm-420mm, wall thickness 3mm-11mm within this range, greatly improving the product's flexible coverage and to a considerable extent reducing the client's cost expenditure on product equipment for different inner tank outer wall grinding requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the front three-dimensional structure of the automatic outer wall grinding machine of the utility model;

[0018] Figure 2 This is a front view of the automatic outer wall grinding machine of the utility model;

[0019] Figure 3 It is a left side view of the automatic outer wall grinding machine of the utility model;

[0020] Figure 4 It is a schematic diagram of the rear three-dimensional structure of the automatic outer wall grinding machine of the utility model;

[0021] Figure 5 for Figure 4 A local enlarged schematic diagram of the middle A;

[0022] Figure 6 for Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0023] Figure 7 for Figure 4 A partial enlarged schematic diagram of point C in the middle;

[0024] In the figure, 1. frame; 2. rolling assembly; 21. driving mechanism; 22. main roller; 23. slave roller; 24. variable frequency reduction motor; 25. sprocket; 26. seat bearing; 3. end blocking assembly; 31. blocking cylinder; 32. blocking plate; 4. grinding assembly; 41. axial feed assembly; 42. radial feed assembly; 43. electric spindle; 44. louver wheel; 45. linear guide A; 46. servo motor A; 47. base frame; 48. rack; 49. linear guide B; 410. support arm; 411. servo motor B; 412. ball screw; 413. limit plate; 414. protective cover; 5. clamping assembly; 6. cooling water circulation assembly. DETAILED DESCRIPTION

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model's automatic outer wall grinding machine. Figure 2 This is the front view of the automatic outer wall grinding machine of the utility model. Figure 3 This is the left view of the automatic outer wall grinding machine of the utility model. Figure 4It is a schematic diagram of the rear three-dimensional structure of the utility model outer wall automatic grinder, as shown in the figure: the utility model type III hydrogen storage bottle inner liner cylinder outer wall automatic grinder, including a frame 1, a rolling assembly 2, an end blocking assembly 3, a grinding assembly 4, a clamping assembly 5 and a cooling water circulation assembly 6; the grinding assembly 4 is installed on the outside of the rolling assembly 2, and the end blocking assembly 3 is arranged at the end of the rolling assembly 2; the inner liner cylinder is transported to the rolling assembly 2 by a manipulator, and the end blocking assembly 3 is pressed against one end of the inner liner cylinder; the inner liner cylinder is limited by the clamping assembly 5, and the rolling assembly 2 drives the inner liner cylinder to rotate, the grinding assembly 5 is used to grind the outer wall of the inner liner cylinder, and the cooling water circulation assembly 6 is used to automatically spray water for cooling during the grinding process.

[0027] Figure 5 for Figure 4 The partially enlarged schematic diagram at A in the middle shows that the rolling assembly 2 includes a driving mechanism 21, a main roller 22 and a slave roller 23; both ends of the main roller 22 and the slave roller 23 are horizontally and parallelly mounted on the frame 1 through seat bearings 26, and a sprocket 25 is installed on the end of the main roller 22 close to the driving mechanism 21; the driving mechanism 21 includes a variable frequency reduction motor 24 and a sprocket 25, and the output shaft of the variable frequency reduction motor 24 is linked to the sprocket 25 through a chain. The centers of the main roller 22 and the slave roller 23 are at the same height. The end blocking assembly 3 includes a blocking cylinder 31 and a blocking plate 32, and the blocking cylinder 31 is installed between the main roller 22 and the slave roller 23 and close to one end of the driving mechanism 21, and the telescopic end of the blocking cylinder 31 extends horizontally and the end is connected to the blocking plate 32.

[0028] Figure 6 for Figure 4 The partially enlarged schematic diagram at point B in the middle, as shown in the figure, the grinding assembly 4 includes an axial feed assembly 41, a radial feed assembly 42, an electric spindle 43, a louver wheel 44 and a linear guide rail A45; the axial feed assembly 41 is installed on the outside of the rolling assembly 2, and is used for axial feeding during grinding; the radial feed assembly 42 is installed above the axial feed assembly 41, and takes into account radial adjustment while axial feeding; the electric spindle 43 is fixed to the radial feed assembly 42 through an L-shaped frame, and the output shaft is parallel to the main drum 22, the louver wheel 44 is used for grinding, and is installed at the output end of the electric spindle 43, and a protective cover 414 is arranged around the rear of the louver wheel 44.

[0029] The axial feed assembly 41 includes two linear guide rails A45 arranged in parallel along the axial direction, a servo motor A46 and a base frame 47. The base frame 47 spans over the two linear guide rails A45, and a rack 48 is installed at the bottom. A gear is installed at the output end of the servo motor A46. The gear and rack 48 cooperate to drive the base frame 47 to move axially on the linear guide rail A45.

[0030] The radial feed assembly 42 includes two linear guide rails B49 perpendicular to the linear guide rail A45, a support arm 410, and a servo motor B411. The support arm 410 spans over the two linear guide rails B49 and the bottom thereof slides in cooperation with the linear guide rails B49. The servo motor B411 is installed at one end of the base frame 47 in the radial direction, and the output shaft is connected to the ball screw 412. A nut is installed at the bottom of the support arm 410, and the nut cooperates with the ball screw 412 to radially adjust the sliding position. A limit plate 413 is vertically installed at both ends of the support arm 410 in the radial direction.

[0031] Figure 7 for Figure 4 The partially enlarged schematic diagram at point C in the middle shows that the clamping assembly 5 includes a bracket 51, a slider 52, a linear guide C53, a clamping cylinder 54 and a clamping roller 55; the linear guide C53 is axially arranged on the inner side of the rolling assembly 2; the fixed end of the clamping cylinder 54 is installed on the bracket 51, and the output end is downward, and the output end is connected to the clamping roller 55, which is located opposite to the main roller 22 and the slave roller 23, and presses down the inner liner cylinder without restricting the freedom of axial rotation; the slider 52 is installed at the bottom of the bracket 51, and the slider 52 slides in cooperation with the linear guide C53.

[0032] When in use, the workpiece to be polished on the outer wall of the type III inner liner is transported from the external truss manipulator to the top of the equipment and placed between the main roller 22 and the slave roller 23. At this time, the clamping assembly 5 is manually adjusted to the zero position in the axial direction to avoid the external truss manipulator from placing the material position. The louver wheel 44 is also driven by the servo motor A46 and the servo motor B411 in the axial and radial directions to the zero position. The clamping cylinder 54 is at the top in the vertical direction, and the blocking cylinder 31 is in a retracted state. When the inner liner body is placed between the main roller 22 and the slave roller 23, , the blocking cylinder 31 extends out, the blocking plate 32 presses against one end of the inner shell to be polished, the clamping assembly 5 is manually moved to the middle position in the axial direction and locked, the relative position of the slider 52 and the linear guide C53 is fixed, the equipment start button is pressed, the clamping cylinder 54 is pushed out, the inner shell is pressed down without limiting the freedom of axial rotation, the driving mechanism 21 starts to drive the main roller 22 to rotate; the axial feed assembly 41 and the radial feed assembly 42 move the louver wheel 44 to the polishing position according to the program, and the electric spindle 43 rotates to start the polishing operation. When the polishing operation is completed, the axial feed assembly 41, the radial feed assembly 42, the electric spindle 43 and the louver wheel 44 retreat to the initial position. The electric spindle 43 and the driving mechanism 21 stop working, and the clamping cylinder 54 returns to the initial state; the manually adjusted clamping assembly 5 is manually moved to the axial zero position, and the start button is pressed. The external truss manipulator automatically grabs the polished inner liner cylinder from the outer wall polishing equipment, completing one polishing operation. Repeat this operation to complete the polishing of other inner liner cylinders.

Claims

1. An automatic grinding machine for the outer wall of the inner shell of a type III hydrogen storage bottle, characterized in that: The invention comprises a frame (1), a rolling assembly (2), an end blocking assembly (3), a grinding assembly (4), a pressing assembly (5) and a cooling water circulation assembly (6); the grinding assembly (4) is installed on the outside of the rolling assembly (2), the end blocking assembly (3) is arranged at the end of the rolling assembly (2), and is used for axially coarsely positioning the inner liner cylinder; the inner liner cylinder is transported to the rolling assembly (2) by a robot, and the end blocking assembly (3) is pressed against one end of the inner liner cylinder; the inner liner cylinder is limited by the pressing assembly (5), and the rolling assembly (2) drives the inner liner cylinder to rotate, the grinding assembly (4) is used for grinding the outer wall of the inner liner cylinder, and the cooling water circulation assembly (6) is used for automatically spraying water for cooling during the grinding process, and is placed on the side of the frame (1) without a hard connection with the main body of the equipment.

2. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 1 is characterized in that: The rolling assembly (2) comprises a driving mechanism (21), a main roller (22) and a slave roller (23); both ends of the main roller (22) and the slave roller (23) are horizontally and parallelly mounted on the frame (1) through seat bearings (26), and a sprocket (25) is mounted on one end of the main roller (22) close to the driving mechanism (21); the driving mechanism (21) comprises a variable frequency reduction motor (24) and a sprocket (25), and the output shaft of the variable frequency reduction motor (24) and the sprocket (25) are linked by a chain.

3. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 2 is characterized in that: The centers of the main roller (22) and the secondary roller (23) are at the same height.

4. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 1 is characterized in that: The end blocking assembly (3) comprises a blocking cylinder (31) and a blocking plate (32). The blocking cylinder (31) is installed between the main roller (22) and the slave roller (23) and close to one end of the driving mechanism (21). The telescopic end of the blocking cylinder (31) extends horizontally and the end is connected to the blocking plate (32).

5. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 1 is characterized in that: The grinding assembly (4) comprises an axial feeding assembly (41), a radial feeding assembly (42), an electric spindle (43), a louver wheel (44) and a linear guide rail A (45); the axial feeding assembly (41) is installed on the outside of the rolling assembly (2) and is used for axial feeding during grinding; the radial feeding assembly (42) is installed above the axial feeding assembly (41) and is used for axial feeding and radial adjustment at the same time; the electric spindle (43) is fixed to the radial feeding assembly (42) through an L-shaped frame, and the output shaft is parallel to the main roller (22); the louver wheel (44) is used for grinding and is installed at the output end of the electric spindle (43).

6. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 5 is characterized in that: The axial feeding assembly (41) comprises two linear guide rails A (45) arranged in parallel along the axial direction, a servo motor A (46) and a base frame (47). The base frame (47) spans over the two linear guide rails A (45), a rack (48) is installed at the bottom, and a gear is installed at the output end of the servo motor A (46). The gear and the rack (48) cooperate to drive the base frame (47) to move along the axial direction on the linear guide rails A (45).

7. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 5 is characterized in that: The radial feed assembly (42) comprises two linear guide rails B (49) perpendicular to the linear guide rail A (45), a support arm (410), and a servo motor B (411); the support arm (410) spans over the two linear guide rails B (49) and the bottom thereof slides in cooperation with the linear guide rails B (49); the servo motor B (411) is mounted at one end of the base frame (47) in the radial direction, the output shaft of the servo motor B (411) is connected to the ball screw (412), a nut is mounted at the bottom of the support arm (410), and the nut cooperates with the ball screw (412) to radially adjust the sliding position.

8. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 7 is characterized in that: A limiting plate (413) is vertically mounted at each end of the support arm (410) in the radial direction.

9. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 1 is characterized in that: The clamping assembly (5) comprises a bracket, a slider, a linear guide C, a clamping cylinder and a clamping roller; the linear guide C is axially arranged on the inner side of the rolling assembly (2); the fixed end of the clamping cylinder is mounted on the bracket, the output end is downward, the output end is connected to the clamping roller, and the position is opposite to the main roller (22) and the slave roller (23), so as to press down the inner liner body without restricting the freedom of axial rotation; the slider is installed at the bottom of the bracket, and the slider slides in cooperation with the linear guide C.

10. The automatic grinding machine for the outer wall of the inner shell of the type III hydrogen storage bottle according to claim 5 is characterized in that: A protective cover (414) is arranged around the rear periphery of the louver wheel (44).

Images