A polishing station for watercraft

Abstract

This invention relates to the field of hydrofoil component processing and discloses a grinding workbench for watercraft, comprising a base plate. The upper surface of the base plate is respectively provided with a support platform, a positioning mechanism for fixing the watercraft, a placement mechanism, and an automatic pickup mechanism for placing the watercraft from the placement mechanism onto the positioning mechanism. A robotic arm is provided on the upper surface of the support platform, and an automatic grinding mechanism is provided at the end of the robotic arm. The rotating placement mechanism includes a placement frame located above and behind the base plate, with two horizontally arranged placement slots for placing the watercraft. A drive component for controlling the rotation of the placement frame is provided directly below the base plate on the base plate. The automatic pickup mechanism includes a fixing plate fixed to the upper surface of the base plate. This invention has the following advantages and effects: it can automatically change and rotate workpieces, resulting in higher grinding efficiency and precision.

Description

Technical Field

[0001] This invention relates to the field of hydrofoil component processing technology, and in particular to a grinding workbench for watercraft. Background Technology

[0002] Electric hydrofoil surfboards are a recently emerging type of water sports equipment. They can provide users with a surfing experience in calm waters by relying on their own electric motors, while also avoiding the safety hazards posed by waves and depth. The surfboards undergo a polishing process during the manufacturing process.

[0003] A grinding workbench is an industrial dust removal device that integrates a workbench and a dust collector. It is suitable for small and medium-sized precision machining and irregular parts processing. When grinding hydrofoils on a grinding workbench, it is generally necessary to manually remove the hydrofoils from the placement rack and fix them on the fixing mechanism. During the grinding process, manual flipping and replacement are also required, resulting in low grinding efficiency and hindering production. Therefore, it is necessary to propose a grinding workbench for watercraft to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding workbench for watercraft, which has the effect of automatically changing and flipping workpieces, resulting in higher grinding efficiency and grinding precision.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a polishing workbench for water sports equipment, comprising a work base plate, wherein the upper end surface of the work base plate is respectively provided with a support platform, a positioning mechanism for fixing water sports equipment, a placement mechanism, and an automatic picking mechanism for placing water sports equipment on the placement mechanism onto the positioning mechanism; a robotic arm is provided on the upper end surface of the support platform, and an automatic polishing mechanism is provided at the end of the robotic arm; the rotating placement mechanism includes a placement frame disposed above and behind the work base plate, wherein two placement slots for placing water sports equipment are horizontally arranged on the placement frame; and a driving member for controlling the rotation of the placement frame is provided on the work base plate directly below the placement frame. The moving pickup mechanism includes a fixed plate fixed to the upper surface of the working base plate. The fixed plate is located on the left side of the placement frame, and the included angle between the two is 90 degrees. A limit frame is fixedly installed on the right side of the fixed plate. A connecting block is fixedly installed on the front side of the limit frame. A first electric push rod is installed on the connecting block. A slide plate is installed at the output end of the first electric push rod. A rotating handle is rotatably installed on the slide plate. A Z-shaped slide is provided on the right side of the limit frame. A protrusion inserted into the Z-shaped slide is fixedly installed on one side of the rotating handle located on the limit frame. A second electric push rod is fixedly connected to the other side. An elastic push rod and a material-picking suction cup connected to the end of the elastic push rod are installed at the output end of the second electric push rod.

[0006] By adopting the above technical solution, the operator only needs to neatly place the formed wing plate in the left placement slot. Then, through the automatic control of the first electric push rod, the slide plate is pushed to slide towards the placement frame, so that the side protrusion slides in the Z-shaped slide. When it reaches the end, it will simultaneously drive the rotating handle to rotate 90 degrees on the slide plate, so that the material chuck is in a horizontal state. Under the elastic extension and retraction of the elastic push rod, it can fit with the wing plate in the placement slot, thereby picking up the outermost wing plate. Then, the first electric push rod controls the slide plate to move back to reset, so that the material chuck drives the wing plate to rotate 90 degrees and fix it through the positioning mechanism. Then, the workpiece is polished with high precision by the robotic arm and the automatic grinding mechanism. After one side is polished, it can be removed by the material chuck and placed into another placement slot under the control of the second electric push rod. After all the wing plates have been polished on one side, the placement frame can be flipped by the drive component, so that the other side of the wing plate can be automatically polished at the same time. This automates the replacement and flipping of workpieces, and the polishing efficiency is higher.

[0007] A further configuration of the present invention is as follows: the driving component includes a first motor mounted on the upper surface of the working base plate, a main gear is mounted on the output end of the first motor, a rotating rod that is rotatably connected to the working base plate is fixedly mounted at the center of the bottom of the placement frame, a driven gear that meshes with the main gear is fixedly mounted on the outer side of the rotating rod, and two support wheels that are symmetrically distributed on the left and right sides are mounted on the bottom of the placement frame, and the lower ends of the two support wheels are in contact with the working base plate.

[0008] By adopting the above technical solution, the main gear is controlled by the first motor to rotate, and the driven gear is rotated through meshing, which causes the rotating rod to drive the placement frame to flip. The sliding of the support wheel makes the flipping of the placement frame more stable, thus facilitating the grinding and processing of the other side of the wing plate.

[0009] A further feature of the present invention is that two symmetrical guide rails are fixedly installed on the right side of the limiting frame, and two sliders that are slidably connected to the guide rails are fixedly installed on the left side of the slide plate.

[0010] By adopting the above technical solution, the sliders on both sides of the skateboard will always slide on the guide rail as the skateboard slides back and forth, so that the skateboard can slide smoothly and transport the wing plate.

[0011] A further embodiment of the present invention is that the elastic push rod includes a cavity fixedly installed at the output end of the second electric push rod, and a movable rod slidably installed on both sides of the cavity. The movable rod is fixedly connected to the material chuck at one end near the placement frame, and a limit ring and a return spring are respectively provided on the outer side of the movable rod. The limit ring is slidably installed in the cavity, and the two ends of the return spring are in contact with the cavity and the material chuck, respectively.

[0012] By adopting the above technical solution, when the material-picking suction cup rotates to correspond with the wing plate in the placement slot, the reset spring generates a telescopic rebound, pushing the movable rod to slide on the cavity, causing the material-picking suction cup to squeeze the wing plate, thereby picking up the wing plate. The limiting ring always slides within the cavity, so that the movable rod will not leave the cavity.

[0013] A further feature of the present invention is that the inner wall of the placement groove is provided with an elastic rubber layer, and a plurality of slots for placing watercraft are provided at equal intervals on the elastic rubber layer.

[0014] By adopting the above technical solution, each wing plate is placed in its corresponding slot, and the elastic properties of the elastic rubber layer facilitate the material suction cup to pick up the wing plate.

[0015] A further embodiment of the present invention is that the positioning mechanism includes a box fixed to the upper surface of the working base plate, the box being located between the support platform and the automatic pickup mechanism, and two T-shaped supports symmetrically arranged front and back fixedly installed on the upper surface of the box. A U-shaped frame is slidably installed on the T-shaped supports, penetrating their upper surfaces. Each of the two vertical ends of the U-shaped frame is fitted with a connecting spring, and a positioning suction cup for fixing watercraft is fixedly installed at the upper end.

[0016] By adopting the above technical solution, when the material-picking suction cup drives the wing plate to flip to the two positioning suction cups, it will simultaneously generate a certain thrust on the suction cups, causing the U-shaped frame to slide on the T-shaped support and compress the connecting spring. After the wing plate is placed, the extension and retraction force of the connecting spring facilitates better suction of the wing plate. Both the material-picking suction cup and the positioning suction cup are controlled by an air pump, thus facilitating stable picking up and placing of the wing plate and positioning.

[0017] A further embodiment of the present invention is that the automatic polishing mechanism includes a connector connected to the end of the robotic arm, an angle adjustment mechanism, and a polishing motor. The angle adjustment mechanism connects the connector and the polishing motor, and a polishing disc is installed at the output end of the polishing motor.

[0018] By adopting the above technical solution, the grinding disc is rotated by driving the grinding motor, and the position of the grinding disc is controlled by the robotic arm and the angle adjustment mechanism, thereby grinding the wing plate.

[0019] A further configuration of the present invention is as follows: the angle adjustment mechanism includes a connecting plate fixed to the end of the connector; a first adjusting motor and a second adjusting motor are fixedly installed at the bottom of the connecting plate; the first adjusting motor and the second adjusting motor are respectively located on both sides of the connecting plate; two fixing blocks are also fixedly installed between the first adjusting motor and the second adjusting motor on the connecting plate; a worm gear connected to the output end of the first adjusting motor is provided between the two fixing blocks; a longitudinal rotating frame movably connected to the worm gear is installed at the output end of the second adjusting motor; a worm wheel meshing with the worm gear is installed inside the longitudinal rotating frame; a horizontal rotating frame is fixedly installed on the outside of the worm wheel and is fixedly connected to the central axis of the worm wheel; and the bottom of the horizontal rotating frame is fixedly connected to a grinding motor.

[0020] By adopting the above technical solution, during grinding, the first adjusting motor controls the worm gear to rotate, which drives the worm wheel to rotate, thereby driving the horizontal rotating frame to allow the grinding disc to slide back and forth to adjust the left and right grinding angle. The second adjusting motor controls the longitudinal rotating frame to slide forward and backward, thereby adjusting the forward and backward grinding angle. With the cooperation of the two, high-precision automatic grinding of the wing plate is achieved, resulting in higher grinding quality.

[0021] The beneficial effects of this invention are:

[0022] 1. This invention, through the setting of an automatic picking mechanism and a positioning mechanism, allows the operator to simply place the wing plate in the placement slot. The first electric push rod, controlled automatically, pushes the sliding plate towards the placement rack, causing the side protrusion to slide within the Z-shaped slide rail. When it reaches the outermost end, it simultaneously drives the rotating handle to rotate 90 degrees on the sliding plate, bringing the picking suction cup to a horizontal position. Under the elastic extension and retraction of the elastic push rod, it can fit against the wing plate in the placement slot, thereby picking up the outermost wing plate. Then, the first electric push rod controls the sliding plate to move back to its original position, causing the picking suction cup to rotate the wing plate 90 degrees. When it is located at the two positioning suction cups, it simultaneously generates a certain pushing force on the suction cups, causing the suction cups to automatically and firmly hold the wing plate. This facilitates convenient and stable picking and positioning of the wing plate. Its automated picking method can greatly save manpower and improve work efficiency.

[0023] 2. By setting up a driving component, after all the wing plates have been polished on one side and placed back into the placement slot, the first motor controls the main gear to rotate, and through meshing, the slave gear rotates, causing the rotating rod to drive the placement frame to flip. The sliding of the support wheel makes the flipping of the placement frame more stable, thus facilitating the polishing of the other side of the wing plate and realizing automated flipping without manual operation.

[0024] 3. The present invention, through the setting of an automatic grinding mechanism, drives the grinding motor to rotate the grinding disc. The first adjusting motor controls the rotation of the worm gear, which drives the worm wheel to rotate, thereby driving the horizontal rotating frame to allow the grinding disc to slide back and forth to adjust the left and right grinding angle. The second adjusting motor controls the longitudinal rotating frame to slide forward and backward to adjust the forward and backward grinding angle. With the cooperation of the two, high-precision automatic grinding of the wing plate is achieved, resulting in higher grinding quality. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is an overall structural diagram of a polishing workbench for watercraft according to the present invention.

[0027] Figure 2 This is the present invention. Figure 1 Structure diagram of the drive component.

[0028] Figure 3 This is the present invention. Figure 1 Overall structural diagram of the automatic grinding mechanism.

[0029] Figure 4 This is the present invention. Figure 3 Connection diagram of the second electric actuator and the elastic actuator.

[0030] Figure 5 This is the present invention. Figure 4 Structural diagram of a medium-elastic push rod.

[0031] Figure 6 This is a structural diagram of the positioning mechanism of the present invention.

[0032] Figure 7 This is an overall structural diagram of the automatic polishing mechanism of the present invention.

[0033] In the diagram, 1. Working base plate; 2. Support platform; 3. Positioning mechanism; 31. Box body; 32. T-shaped support; 33. U-shaped frame; 34. Connecting spring; 35. Positioning suction cup; 4. Placement mechanism; 41. Placement rack; 42. Placement slot; 421. Elastic rubber layer; 43. Driving component; 431. First motor; 432. Main gear; 433. Rotating rod; 434. Driven gear; 435. Support wheel; 5. Automatic pickup mechanism; 51. Fixing plate; 52. Limiting frame; 53. Connecting block; 54. First electric push rod; 55. Slide plate; 56. Rotating handle; 57. Z-shaped slide rail 58. Elastic push rod; 581. Cavity; 582. Movable rod; 583. Limiting ring; 584. Return spring; 59. Material suction cup; 510. Guide rail; 511. Slider; 512. Second electric push rod; 513. Protruding post; 6. Robotic arm; 7. Automatic grinding mechanism; 71. Connector; 72. Angle adjustment mechanism; 721. Connecting plate; 722. First adjusting motor; 723. Second adjusting motor; 724. Fixing block; 725. Worm gear; 726. Horizontal rotating frame; 727. Longitudinal rotating frame; 728. Worm wheel; 73. Grinding motor; 74. Grinding disc. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] like Figure 1 , Figure 2 , Figure 3A polishing workbench for water sports equipment includes a base plate 1. The upper surface of the base plate 1 is provided with a support platform 2, a positioning mechanism 3 for fixing water sports equipment, a placement mechanism 4, and an automatic pickup mechanism 5 for placing water sports equipment from the placement mechanism 4 onto the positioning mechanism 3. A robotic arm 6 is provided on the upper surface of the support platform 2, and an automatic polishing mechanism 7 is provided at the end of the robotic arm 6. The rotating placement mechanism 4 includes a placement rack 41 located above and behind the base plate 1. Two horizontal placement slots 42 for placing water sports equipment are provided on the placement rack 41. A drive mechanism for controlling the rotation of the placement rack 41 is located directly below the placement rack 41 on the base plate 1. 43. The automatic pickup mechanism 5 includes a fixing plate 51 fixed to the upper surface of the working base plate 1. The fixing plate 51 is located on the left side of the placement frame 41, and the included angle between the two is 90 degrees. A limit frame 52 is fixedly installed on the right side of the fixing plate 51. A connecting block 53 is fixedly installed on the front side of the limit frame 52. A first electric push rod 54 is installed on the connecting block 53. A slide plate 55 is installed on the output end of the first electric push rod 54. A rotating handle 56 is rotatably installed on the slide plate 55. A Z-shaped slide rail 57 is provided on the right side of the limit frame 52. A protrusion 513 inserted into the Z-shaped slide rail 57 is fixedly installed on one side of the rotating handle 56 located on the limit frame 52. A second electric push rod 512 is fixedly connected to the side. The output end of the second electric push rod 512 is equipped with an elastic push rod 58 and a material-picking suction cup 59 connected to the end of the elastic push rod 58. The operator only needs to neatly place the formed wing plate in the left placement slot 42, and then push the slide plate 55 towards the placement frame 41 through the automatic control of the first electric push rod 54, so that the side protrusion 513 slides in the Z-shaped slide rail 57. When it reaches the end, it will simultaneously drive the rotating handle 56 to rotate 90 degrees on the slide plate 55, so that the material-picking suction cup 59 is in a horizontal state, and under the elastic extension and retraction of the elastic push rod 58, it can be attached to the wing plate in the placement slot 42. The outermost wing plate is picked up by the first electric push rod 54, which controls the slide plate 55 to move back and reset, causing the material pick-up suction cup 59 to rotate the wing plate 90 degrees and fix it through the positioning mechanism 3. Then, the workpiece is polished with high precision by the robotic arm 6 and the automatic polishing mechanism 7. After one side is polished, it can be removed by the material pick-up suction cup 59 and placed into another placement slot 42 under the control of the second electric push rod 512. After all the wing plates have been polished on one side, the placement frame 41 can be flipped by the drive component 43, so that the other side of the wing plate can be automatically polished at the same time. This automates the replacement and flipping of the workpiece, and its polishing efficiency is higher.

[0036] like Figure 2As shown, the driving component 43 includes a first motor 431 mounted on the upper surface of the working base plate 1. A main gear 432 is mounted on the output end of the first motor 431. A rotating rod 433, which is rotatably connected to the working base plate 1, is fixedly mounted at the center of the bottom of the placement frame 41. A driven gear 434, which meshes with the main gear 432, is fixedly mounted on the outer side of the rotating rod 433. Two support wheels 435, which are symmetrically distributed on the left and right sides, are mounted on the bottom of the placement frame 41, and the lower ends of the two support wheels 435 are in contact with the working base plate 1. The first motor 431 controls the rotation of the main gear 432, which in turn causes the driven gear 434 to rotate through meshing. This causes the rotating rod 433 to drive the placement frame 41 to flip. The sliding of the support wheels 435 makes the flipping of the placement frame 41 more stable, thus facilitating the grinding and processing of the other side of the wing plate.

[0037] like Figure 3 As shown, two symmetrical guide rails 510 are fixedly installed on the right side of the limiting frame 52, and two sliders 511 that are slidably connected to the guide rails 510 are fixedly installed on the left side of the slide plate 55. As the slide plate 55 slides back and forth, the sliders 511 on both sides will always slide on the guide rails 510, so that the slide plate 55 can slide smoothly and transport the wing plate.

[0038] like Figure 4 , Figure 5 As shown, the elastic push rod 58 includes a cavity 581 fixedly installed at the output end of the second electric push rod 55. A movable rod 582 is slidably installed on both sides of the cavity 581. The movable rod 582 is fixedly connected to the material suction cup 59 at one end near the placement frame 41. A limit ring 583 and a return spring 584 are respectively provided on the outer side of the movable rod 582. The limit ring 583 is slidably installed in the cavity 581. The two ends of the return spring 584 are in contact with the cavity 581 and the material suction cup 59, respectively. When the material suction cup 59 rotates to correspond with the wing plate in the placement groove 42, the return spring 584 generates a telescoping and rebounding motion, pushing the movable rod 582 to slide on the cavity 581, causing the material suction cup 59 to squeeze the wing plate, thereby picking up the wing plate. The limit ring 583 always slides within the cavity 581, so that the movable rod 582 will not detach from the cavity 581.

[0039] like Figure 2 As shown, the inner wall of the placement groove 42 is provided with an elastic rubber layer 421, and multiple slots for placing watercraft are provided at equal intervals on the elastic rubber layer 421; each wing plate is placed in the corresponding slot, and the elastic properties of the elastic rubber layer 421 make it easy for the material suction cup 59 to pick up the wing plate.

[0040] like Figure 6As shown, the positioning mechanism 3 includes a box 31 fixed to the upper surface of the working base plate 1. The box 31 is located between the support platform 2 and the automatic pickup mechanism 5. Two T-shaped supports 32 with front and rear symmetry are fixedly installed on the upper surface of the box 31. A U-shaped frame 33 that passes through the upper surface of the T-shaped support 32 is slidably installed on the T-shaped support 32. A connecting spring 34 is sleeved on both vertical ends of the U-shaped frame 33, and a positioning suction cup 35 for fixing watercraft is fixedly installed at the upper end. When the material-picking suction cup 59 drives the wing plate to flip to the two positioning suction cups 35, a certain pushing force is generated on the suction cups 35, so that the U-shaped frame 33 slides on the T-shaped support 32 and compresses the connecting spring 34. After the wing plate is placed, the extension and retraction force of the connecting spring 34 makes it easier to better suction the wing plate. The material-picking suction cup 59 and the positioning suction cup 35 are both controlled by an air pump, so as to facilitate the stable picking and placing of the wing plate and positioning.

[0041] like Figure 7 As shown, the automatic polishing mechanism 7 includes a connector 71 connected to the end of the robotic arm 6, an angle adjustment mechanism 72, and a polishing motor 73. The angle adjustment mechanism 72 connects the connector 71 and the polishing motor 73. A polishing disc 74 is installed at the output end of the polishing motor 73. By driving the polishing motor 73, the polishing disc 74 is rotated. The position of the polishing disc 74 is controlled by the robotic arm 6 and the angle adjustment mechanism 72, thereby polishing the wing plate.

[0042] like Figure 7 As shown, the angle adjustment mechanism 72 includes a connecting plate 721 fixed to the end of the connector 71. A first adjusting motor 722 and a second adjusting motor 723 are fixedly installed on the bottom of the connecting plate 721. The first adjusting motor 722 and the second adjusting motor 723 are respectively located on both sides of the connecting plate 721. Two fixing blocks 724 are also fixedly installed on the connecting plate 721 between the first adjusting motor 722 and the second adjusting motor 723. A worm gear 725 connected to the output end of the first adjusting motor 722 is provided between the two fixing blocks 724. A longitudinal rotating frame 727 movably connected to the worm gear 725 is installed at the output end of the second adjusting motor 723. The longitudinal rotating frame 727 is internally equipped with... The worm gear 728 is equipped with a worm wheel 728 that meshes with the worm 725. A horizontal rotating frame 726 is fixedly mounted on the outer side of the worm wheel 728, and the horizontal rotating frame 726 is fixedly connected to the central axis of the worm wheel 728. The bottom of the horizontal rotating frame 726 is fixedly connected to the grinding motor 73. During grinding, the first adjusting motor 722 controls the rotation of the worm 725, which drives the worm wheel 728 to rotate, thereby driving the horizontal rotating frame 726 to allow the grinding disc 74 to slide back and forth, adjusting the left and right grinding angle. The second adjusting motor 723 controls the longitudinal rotating frame 727 to slide forward and backward, thereby adjusting the forward and backward grinding angle. With the cooperation of the two, high-precision automatic grinding of the wing plate is achieved, resulting in higher grinding quality.

Claims

1. A sanding station for a watercraft, comprising a working deck (1), characterized in that: The upper end face of the working base plate (1) is respectively provided with a bearing platform (2), a positioning mechanism (3) for fixing water appliances, a placing mechanism (4) and an automatic picking mechanism (5) for placing the water appliances on the placing mechanism (4) on the positioning mechanism (3), the upper end face of the bearing platform (2) is provided with a mechanical arm (6), the end of the mechanical arm (6) is provided with an automatic polishing mechanism (7), the placing mechanism (4) comprises a placing rack (41) arranged on the rear side above the working base plate (1), two placing grooves (42) for placing water appliances are horizontally arranged on the placing rack (41), the working base plate (1) is provided with a driving piece (43) below the placing rack (41) for controlling the overturning of the working base plate (1), the automatic picking mechanism (5) comprises a fixed plate (51) fixed to the upper end face of the working base plate (1), the fixed plate (51) is located on the left side of the placing rack (41) and the included angle between them is ninety degrees, the right side surface of the fixed plate (51) is fixedly installed with a limiting rack (52), the front side of the limiting rack (52) is fixedly installed with a connecting block (53), the first electric push rod (54) is installed on the connecting block (53), the output end of the first electric push rod (54) is installed with a sliding plate (55), the rotating handle (56) is rotatably arranged on the sliding plate (55), the right side surface of the limiting rack (52) is provided with a Z-shaped slide (57), the rotating handle (56) is fixedly installed with a protruding column (513) inserted into the Z-shaped slide (57) on one side of the limiting rack (52), the other side is fixedly connected with a second electric push rod (512), the output end of the second electric push rod (512) is installed with an elastic push rod (58) and a material taking suction cup (59) connected with the end of the elastic push rod (58).

2. A sanding station for a watercraft according to claim 1, wherein: The driving piece (43) comprises a first motor (431) installed on the upper end face of the working base plate (1), the output end of the first motor (431) is installed with a main gear (432), the center of the bottom of the placing rack (41) is fixedly installed with a rotating rod (433) rotatably connected with the working base plate (1), the outer side of the rotating rod (433) is fixedly installed with a slave gear (434) engaged with the main gear (432), the bottom of the placing rack (41) is installed with two support wheels (435) distributed symmetrically left and right, and the lower ends of the two support wheels (435) are in contact with the working base plate (1).

3. A sanding station for a watercraft according to claim 1, wherein: The right side surface of the limiting rack (52) is fixedly installed with two guide rails (510) symmetrically upward and downward, the left side surface of the sliding plate (55) is fixedly installed with two sliding blocks (511) slidably connected with the guide rails (510).

4. A sanding station for a watercraft according to claim 1, wherein: The elastic push rod (58) comprises a cavity (581) fixedly installed at the output end of the second electric push rod (55), a movable rod (582) slidably installed on the cavity (581) and penetrating through both sides of the cavity (581), and a material taking suction pad (59) fixedly connected to one end of the movable rod (582) close to the placing rack (41), wherein the outer side of the movable rod (582) is provided with a limiting ring (583) and a reset spring (584), the limiting ring (583) is slidably installed in the cavity (581), and the two ends of the reset spring (584) are in contact with the cavity (581) and the material taking suction pad (59).

5. A sanding station for a watercraft according to claim 1, wherein: The inner wall of the placing groove (42) is provided with an elastic rubber layer (421), and a plurality of clamping grooves for placing water sports equipment are equidistantly arranged on the elastic rubber layer (421).

6. A sanding station for a watercraft according to claim 1, wherein: The positioning mechanism (3) comprises a box body (31) fixed to the upper end face of the working base plate (1), the box body (31) is located between the bearing platform (2) and the automatic picking mechanism (5), two front-rear symmetrical T-shaped supports (32) are fixedly installed on the upper end face of the box body (31), a U-shaped frame (33) penetrating through the upper end face of the T-shaped support (32) is slidably installed on the T-shaped support (32), and a connecting spring (34) is sleeved on each vertical end of the U-shaped frame (33), and a positioning suction pad (35) for fixing the water sports equipment is fixedly installed on the upper end of the U-shaped frame (33).

7. A sanding station for a watercraft according to claim 1, wherein: The automatic polishing mechanism (7) comprises a joint (71) connected to the end of the mechanical arm (6), an angle adjusting mechanism (72) and a polishing motor (73), the angle adjusting mechanism (72) is connected between the joint (71) and the polishing motor (73), and a polishing disc (74) is installed at the output end of the polishing motor (73).

8. A sanding station for a watercraft according to claim 7, wherein: The angle adjusting mechanism (72) comprises a connecting plate (721) fixed to the end of the joint (71), a first adjusting motor (722) and a second adjusting motor (723) are fixedly installed on the bottom of the connecting plate (721), the first adjusting motor (722) and the second adjusting motor (723) are located on the two sides of the connecting plate (721) respectively, two fixed blocks (724) are fixedly installed on the connecting plate (721) between the first adjusting motor (722) and the second adjusting motor (723), a worm (725) connected to the output end of the first adjusting motor (722) is arranged between the two fixed blocks (724), a longitudinal rotating frame (727) movably connected with the worm (725) is installed at the output end of the second adjusting motor (723), a worm wheel (728) meshing with the worm (725) is installed in the longitudinal rotating frame (727), a horizontal rotating frame (726) is fixedly installed on the outer side of the worm wheel (728), the horizontal rotating frame (726) is fixedly connected with the central shaft of the worm wheel (728), and the horizontal rotating frame (726) is fixedly connected with the polishing motor (73).

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