A polishing device for crane parts processing

Abstract

The present invention relates to the technical field of crane parts polishing, and in particular to a polishing device for crane parts processing, comprising a base and a control console installed on the base, an electric L-shaped plate installed on the base, a return plate fixedly connected to the top of the base, a vertical sliding connection of a lifting horizontal cylinder on the inner side of the return plate, and an electric screw threadedly connected to the lifting horizontal cylinder installed on the inner side of the return plate. The present invention starts the electric L-shaped plate to move backward so that the hook moves backward and contacts the sand belt, the hook drives the sand belt to move backward so that the sand belt is tightened, and the positioning frame positions and guides the sand belt so that the sand belt is in a half-wrapped state around the hook, and starts the driving motor to drive the sand belt to rotate through the guide roller to polish the hook, and under the action of the connecting spring and the positioning frame, the sand belt can contact three sides of the hook, and through the action of the sand belt and the connecting spring, the sand belt can adapt to the shape of the hook for comprehensive polishing, thereby improving the overall quality of polishing.

Description

Technical Field

[0001] The invention relates to the technical field of crane part polishing, in particular to a polishing device for crane part processing. Background Art

[0002] In the field of tower cranes, the hook is an important part for carrying and lifting heavy objects. Its surface quality and smoothness are crucial to the safety and efficiency of lifting operations. In order to ensure the surface quality of the hook, polishing the hook is an essential process step.

[0003] A Chinese patent with announcement number CN218518378U discloses a polishing structure for a tower crane hook, including an operating table, on which a first positioning seat and a second positioning seat are detachably provided, and positioning grooves are symmetrically provided at the upper ends of the first positioning seat and the second positioning seat; each positioning groove is provided with a plurality of through holes penetrating the first positioning seat and the second positioning seat, and each through hole is movably provided with a push rod, and the lower end of each push rod is connected to the output end of the electric cylinder, and a positioning plate is slidably provided on the mounting frame, and a motor is provided below the positioning plate, and a polishing disc is provided on the output end of the motor, and motor mounting seats are provided on both sides of the motor. Although the above patent can polish the hook of the crane, due to the irregular shape of the hook itself and the setting of the grinding disc, only the two sides of the hook can be polished, resulting in that other positions of the hook cannot be polished, resulting in incomplete polishing, affecting the overall quality of polishing.

[0004] The present invention aims to solve the problems existing in the above patents. To this end, a polishing device for crane parts processing is proposed, which can fully polish the hook and improve the overall polishing quality. Summary of the invention

[0005] In order to overcome the disadvantage that although the above patent can polish the hook of the crane, due to the irregular shape of the hook itself and the setting of the grinding disc, only the two sides of the hook can be polished, resulting in the inability to polish other positions of the hook, causing incomplete polishing and affecting the overall quality of polishing, the present invention provides a polishing device for crane parts processing that can comprehensively polish the hook and improve the overall quality of polishing.

[0006] The present invention is achieved through the following technical solutions:

[0007] A polishing device for crane parts processing comprises a base and a control console installed on the base, an electric L-shaped plate is installed on the base, a return plate is fixedly connected to the top of the base, a lifting cross cylinder is vertically slidably connected to the inner side of the return plate, an electric screw connected to the lifting cross cylinder with a thread is installed on the inner side of the return plate, and also comprises a guide roller, an abrasive belt, a driving motor, a guide frame, a movable seat, a guide wheel, a connecting spring, a positioning frame, a clamping assembly and a switching assembly, two groups of guide rollers are symmetrically installed on the front side of the lifting cross cylinder, an abrasive belt is wound between the guide rollers, guide frames are symmetrically fixedly connected to the front side of the lifting cross cylinder, movable seats are slidably connected between the guide frames, and connecting springs are symmetrically connected between the movable seat and the lifting cross cylinder, A guide wheel in contact with the sanding belt is rotatably connected to the movable seat, a positioning frame located between the guide rollers is symmetrically fixed to the front side of the lifting horizontal cylinder, and the end of the positioning frame is in contact with the inner side of the sanding belt. A driving motor is installed on the lifting horizontal cylinder, and the end of the output shaft of the driving motor is fixedly connected to the shaft of one of the guide rollers. The clamping assembly is installed on the electric L-shaped plate, and the clamping assembly is used to clamp the hook and then move it so that the hook moves and contacts the sanding belt. Under the action of the connecting spring and the positioning frame, the sanding belt is tightly attached to the hook for grinding and polishing. The switching assembly is installed between the base and the clamping assembly, and is used to drive the hook to rotate 180 degrees through the clamping assembly to polish the outer position.

[0008] Further explanation, the clamping assembly includes a rotating shaft connected to the top of the electric L-shaped plate with damping rotation, a shell is fixed to the bottom end of the rotating shaft, a movable plate is symmetrically slidably connected to the shell, an electric rotating block is installed on the movable plate to drive the hook to rotate for angle adjustment, and a driving assembly is arranged on the inside of the shell to drive the movable plate to move.

[0009] Further explanation, the drive assembly includes a spur gear rotatably connected to the inner side of the shell, a drive rack fixedly connected to the movable plate and meshing with the spur gear, the drive racks are staggered, a cylinder is installed on the shell, and the end of the telescopic rod of the cylinder is fixedly connected to one of the drive racks.

[0010] To further explain, the switching assembly includes a one-way clutch installed on the rotating shaft, a guide gear is installed on the one-way clutch, an L-shaped rack meshing with the guide gear is fixed to the base, and a magnet symmetrically embedded and fixed on the inner side of the electric L-shaped plate is in magnetic contact with the shell.

[0011] Further explanation, the polishing device for crane parts processing also includes a pushing assembly, which includes a slide plate slidably connected between the positioning frames, a compression spring is connected between the slide plate and the positioning frames, a wear-resistant water bag in contact with the inner side of the sanding belt is fixedly connected to the slide plate, and is used to push the sanding belt tightly against the hook, a water inlet pipe is connected to the wear-resistant water bag, a cylinder body is fixedly connected to the lifting cross cylinder, a piston rod located directly behind the movable seat is slidably connected to the cylinder body, a reset spring is connected between the piston rod and the cylinder body, the cylinder body is fixedly connected and communicated with the rear end of the water inlet pipe, a water filling pipe is connected to the cylinder body, and the top end of the water filling pipe passes through the lifting cross cylinder.

[0012] Further explanation, the polishing device for processing crane parts also includes a support assembly, which includes guide rods symmetrically fixed to the electric L-shaped plate, and a support mesh plate located directly below the shell is slidably mounted between the guide rods to support and limit the hook, and a support spring mounted on the guide rod is symmetrically connected between the support mesh plate and the electric L-shaped plate.

[0013] Further explanation, the support assembly also includes rollers that are rotatably connected to the top of the support mesh at even intervals to guide the hooks.

[0014] Further explanation: the polishing device for crane parts processing also includes a frame fixedly connected to the bottom of the supporting mesh plate, a hose is connected to the frame, an air pump is installed on the top of the base, and the air suction end of the air pump is connected to the tail end of the hose.

[0015] The beneficial effects of the present invention are:

[0016] 1. Clamp and fix the hook by the electric rotating block, then start the electric L-shaped plate to move backward so that the hook moves backward and contacts the sanding belt. The hook drives the sanding belt to move backward so that the sanding belt is tightened. The positioning frame positions and guides the sanding belt so that the sanding belt half-wraps the hook. Start the drive motor to drive the sanding belt to rotate through the guide roller to polish the hook. Under the action of the connecting spring and the positioning frame, the sanding belt can contact three sides of the hook. Through the action of the sanding belt and the connecting spring, the sanding belt can adapt to the shape of the hook for comprehensive polishing, thereby improving the overall quality of polishing.

[0017] 2. Under the action of the wear-resistant water bag, every time the hook drives the hook to move backward, an appropriate amount of water can be discharged into the wear-resistant water bag. The discharge of water causes the wear-resistant water bag to expand. The expansion of the wear-resistant water bag pushes the sanding belt, making the sanding belt more closely contact with the hook for grinding and polishing, thereby improving the polishing effect.

[0018] 3. Under the action of the vacuum pump and the frame, whenever the hook is being polished, starting the vacuum pump can allow the frame to extract the dust generated by polishing, preventing the dust generated by polishing from floating around and affecting the working environment, thereby ensuring a good working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the return plate, lifting horizontal cylinder and electric screw rod of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the guide roller, the abrasive belt and the guide wheel of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping assembly and the switching assembly of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the cylinder, driving rack and spur gear of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the pushing assembly of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the compression spring and the return spring of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the supporting mesh plate and the frame of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the drum of the present invention.

[0028] Names of the numbers in the figure: 1. Base, 2. Control console, 3. Electric L-shaped plate, 4. Return plate, 5. Lifting cross cylinder, 6. Electric screw, 7. Guide roller, 71. Sand belt, 72. Driving motor, 73. Guide frame, 74. Movable seat, 75. Guide wheel, 76. Connecting spring, 77. Positioning frame, 8. Rotating shaft, 81. Shell, 82. Movable plate, 83. Electric rotating block, 84. Cylinder, 85. Driving rack, 86. Spur gear, 9, L-shaped rack, 91, one-way clutch, 92, guide gear, 93, magnet, 10, skateboard, 101, wear-resistant water bag, 1011, compression spring, 102, water inlet pipe, 104, water adding pipe, 105, cylinder body, 106, piston rod, 107, return spring, 11, guide rod, 12, support mesh plate, 13, support spring, 14, roller, 15, vacuum pump, 16, hose, 17, frame. DETAILED DESCRIPTION

[0029] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0030] Example: A polishing device for crane parts processing, please refer to Figure 1-Figure 5 As shown, it includes a base 1 and a control console 2 installed on the right side of the top of the base 1, an electric L-shaped plate 3 is installed on the front side of the base 1, a return plate 4 is fixedly connected to the rear side of the top of the base 1, a lifting cross cylinder 5 is vertically slidably connected to the inner side of the return plate 4, an electric screw 6 is installed on the right side of the return plate 4, the electric screw 6 is threadedly connected to the right side of the lifting cross cylinder 5, and also includes guide rollers 7, sanding belts 71, drive motors 72, guide frames 73, movable seats 74, guide wheels 75, connecting springs 76, positioning frames 77, clamping components and switching components, two groups of guide rollers 7 are symmetrically installed on the front side of the lifting cross cylinder 5, the number of guide rollers 7 in each group is two, and sanding belts 71 are wound between the four guide rollers 7, a guide frame 73 is symmetrically fixed to the middle part of the front side of the lifting cross cylinder 5, a movable seat 74 is slidably connected between the upper and lower guide frames 73, and a movable seat 74 is symmetrically connected between the rear side of the movable seat 74 and the front side of the lifting cross cylinder 5 The cam 77 is engaged with the locking cam 72 and the spring 76 is engaged with the locking cam 72. When the cam 77 is engaged, the locking cam 72 is engaged with the spring 76 and the spring 76 is engaged with the locking cam 72.

[0031] See also Figure 4 and Figure 5As shown, the clamping assembly includes a rotating shaft 8, a shell 81, a movable plate 82, an electric rotating block 83 and a driving assembly. The middle of the top of the electric L-shaped plate 3 is connected to the rotating shaft 8 for damping rotation. The bottom of the rotating shaft 8 is fixedly connected to the shell 81. The bottom of the shell 81 is symmetrically slidably connected to the movable plate 82. The lower part of the movable plate 82 is equipped with an electric rotating block 83. When the electric rotating block 83 rotates, the electric rotating block 83 can drive the hook to rotate for angle adjustment. The electric rotating block 83 is composed of a motor and a U-shaped block, wherein the motor is installed at the lower part of the movable plate 82, and the U-shaped block is fixedly connected to the output shaft of the motor. At the end, a driving assembly is arranged inside the shell 81. When the driving assembly is in operation, the driving assembly can drive the movable plate 82 to move; the driving assembly includes a cylinder 84, a driving rack 85 and a spur gear 86. The spur gear 86 is rotatably connected to the middle of the bottom of the shell 81, and the upper parts of the left and right movable plates 82 that are close to each other are fixed with driving racks 85, and the driving racks 85 are meshed with the spur gear 86. The driving racks 85 on the left and right sides are staggered, and a cylinder 84 is installed on the right front side of the bottom of the shell 81, and the end of the telescopic rod of the cylinder 84 is fixedly connected to the left side of the front driving rack 85.

[0032] See also Figure 4 As shown, the switching assembly includes an L-shaped rack 9, a one-way clutch 91, a guide gear 92 and a magnet 93. The one-way clutch 91 is installed on the upper part of the rotating shaft 8, and the guide gear 92 is installed on the one-way clutch 91. The L-shaped rack 9 is fixedly connected to the front side of the top of the base 1, and the L-shaped rack 9 is meshed with the guide gear 92. The top of the electric L-shaped plate 3 is symmetrically embedded and fixed with a magnet 93, and the magnet 93 is in magnetic contact with the top of the shell 81.

[0033] First, move the hook to between the left and right electric rotating blocks 83, and control the cylinder 84 to start through the control module by operating the console 2. The telescopic rod of the cylinder 84 extends to drive the right driving rack 85 to move left, and the right driving rack 85 moves left to drive the right movable plate 82 to move left, and the right movable plate 82 moves left to drive the right electric rotating block 83 to move left. At the same time, the right driving rack 85 moves left and also drives the spur gear 86 to rotate forward, and the spur gear 86 rotates forward to drive the left driving rack 85 to move right, and the left driving rack 85 moves right to drive the left movable plate 82 to move right, and the left movable plate 82 moves right to drive the left electric rotating block 83 to move right, and the left electric rotating block 83 moves right and is aligned with the right electric rotating block 83 moves to the left to clamp the hook, close the cylinder 84, drive the rack 85 to stop driving the movable plate 82 to move, and then start the electric screw 6 to drive the lifting cross cylinder 5 to move up and down. The lifting cross cylinder 5 drives the sanding belt 71 to move up and down through the guide roller 7. When the sanding belt 71 moves up and down to a suitable position for polishing the hook, close the electric screw 6, and then start the electric L-shaped plate 3 to move backward to drive the rotating shaft 8 to move backward. The rotating shaft 8 drives the shell 81 to move backward. The shell 81 moves backward to drive the movable plate 82 to move backward. The movable plate 82 drives the hook backward through the electric rotating block 83. At the same time, the rotating shaft 8 also drives the guide gear 92 to move backward through the one-way clutch 91. Due to the action of the one-way clutch 91, the guide gear 92 moves backward through the L The gear rack 9 is idle, the hook moves backward so that the inner side contacts the abrasive belt 71, the hook squeezes the abrasive belt 71, so that the abrasive belt 71 moves backward in a taut state, the positioning frame 77 positions and guides the abrasive belt 71, so that the abrasive belt 71 half-wraps the hook, the abrasive belt 71 moves backward and tautly drives the guide wheel 75 to move backward, the guide wheel 75 moves backward and drives the movable seat 74 to move backward, the connecting spring 76 is compressed, and when the hook moves backward to the specified position, the electric L-shaped plate 3 is closed, the movable plate 82 stops driving the hook backward through the electric rotating block 83, the magnet 93 sucks and fixes the shell 81 to prevent the rotation of the shell 81 from affecting the polishing of the hook, at this time, the drive motor 72 is started to drive the guide roller 7 to rotate, and the guide The rotation of roller 7 drives the abrasive belt 71 to rotate, and the rotation of abrasive belt 71 grinds and polishes the hook. Since the abrasive belt 71 half-wraps the hook, the rotation of abrasive belt 71 can grind and polish three sides of the hook. At the same time, the electric rotating block 83 is started to rotate forward to drive the hook to rotate forward with the shaft of the electric rotating block 83 as the center, and then the electric screw 6 is started to move the abrasive belt 71 up and down. The forward rotation of the hook and the movement of the abrasive belt 71 are coordinated to grind and polish other positions on the inner side of the hook. As the hook continues to rotate forward, under the action of the connecting spring 76, the abrasive belt 71 can move and keep close to the hook for adaptive polishing. When the hook rotates forward 90 degrees, the inner side of the hook is polished, and the electric rotating block 83 is started to reverse to drive the hook to reverse 90 degrees and reset.Then, the electric L-shaped plate 3 is started to move forward and reset, driving the rotating shaft 8 to move forward and reset, which makes the hook move forward and disengage from the sanding belt 71. Due to the action of the connecting spring 76, the movable seat 74 moves forward and resets, driving the guide wheel 75 to move forward and reset. The guide wheel 75 moves forward and drives the sanding belt 71 to move forward, which makes the sanding belt 71 tighten and reset. At the same time, the rotating shaft 8 moves forward and resets, driving the guide gear 92 to move forward through the one-way clutch 91. The guide gear 92 moves forward and meshes with the L-shaped rack 9, and the L-shaped rack 9 drives the forward gear 92 to move forward. The moving guide gear 92 rotates forward, and the guide gear 92 rotates forward through the one-way clutch 91 to drive the shaft 8 to rotate forward, and the shaft 8 rotates forward to drive the housing 81 to rotate 180 degrees, and the housing 81 drives the hook to rotate 180 degrees through the movable plate 82 and the electric rotating block 83, so that the hook rotates 180 degrees to complete the switching, so that the outer side of the hook is at the rear, and the electric L-shaped plate 3 is turned off, and then the electric L-shaped plate 3 is started again to move backward to make the hook move backward. When the hook moves backward and contacts the sand belt 71, the electric L-shaped plate 3 is turned off, and the sand belt 71 rotates to contact the hook The outer side of the hook is polished, and the electric rotating block 83 is started to drive the hook to reverse, and the hook reversal squeezes the sand belt 71, and the hook reversal drives the sand belt 71 to move backward, so that the sand belt 71 drives the guide wheel 75 to move backward, and the connecting spring 76 is compressed. As the hook reverses, the sand belt 71 can fully polish the outer side of the hook. When the hook reverses 90 degrees, the outer side of the hook is polished, and the electric rotating block 83 is started to rotate forward to drive the hook to rotate forward 90 degrees to reset. At this time, the hook has completed full polishing, and the electric L-shaped plate 3 can be started. Move forward to reset, so that the hook moves forward to reset and disengage from the sanding belt 71, turn off the electric L-shaped plate 3, start the cylinder 84 to drive the rack 85 and the spur gear 86 to drive the movable plates 82 on the left and right sides to move and reset, the movable plates 82 drive the electric rotating block 83 to move and reset, the electric rotating block 83 resets to release the hook, and the polished hook can be collected for subsequent processing. In this way, through the action of the sanding belt 71 and the connecting spring 76, the sanding belt 71 can adapt to the shape of the hook for comprehensive polishing, thereby improving the overall quality of polishing.

[0034] See also Figure 6 and Figure 7As shown, the polishing device for crane parts processing also includes a pushing component installed between the lifting horizontal cylinder 5 and the positioning frame 77, the pushing component includes a slide plate 10, a wear-resistant water bag 101, a compression spring 1011, a water inlet pipe 102, a water adding pipe 104, a cylinder body 105, a piston rod 106 and a reset spring 107, the slide plate 10 is slidably connected between the left and right positioning frames 77, the left and right sides of the rear side of the slide plate 10 are respectively connected to the inner sides of the left and right positioning frames 77, the wear-resistant water bag 101 is fixed to the front side of the slide plate 10, and the wear-resistant water bag 101 is in contact with the inner side of the sand belt 71. When the wear-resistant water bag 101 is inflated, the wear-resistant water bag 101 can push the sanding belt 71 tightly against the hook. A water inlet pipe 102 is connected to the right side of the bottom of the wear-resistant water bag 101. A cylinder body 105 is fixedly connected to the middle of the front side of the lifting horizontal cylinder 5. A piston rod 106 is slidably connected to the front side of the cylinder body 105. The piston rod 106 is located directly behind the movable seat 74. A return spring 107 is connected between the front side of the piston rod 106 and the outer front side surface of the cylinder body 105. The rear side of the cylinder body 105 is fixedly connected and communicated with the tail end of the water inlet pipe 102. A water adding pipe 104 is connected to the rear side of the top of the cylinder body 105, and the top of the water adding pipe 104 passes through the top of the lifting horizontal cylinder 5.

[0035] First, pour an appropriate amount of water into the cylinder 105 through the water adding pipe 104, and the water in the cylinder 105 is discharged into the wear-resistant water bag 101 through the water inlet pipe 102. When the hook drives the sand belt 71 to move backward, the sand belt 71 moves backward and drives the wear-resistant water bag 101 to move backward. The wear-resistant water bag 101 moves backward and drives the slide plate 10 to move backward. The compression spring 1011 is compressed. At the same time, when the movable seat 74 moves backward and contacts the piston rod 106, the movable seat 74 drives the piston rod 106 to move backward, the reset spring 107 is compressed, and the piston rod 106 moves backward to push the water in the cylinder 105 into the water inlet pipe 102. The water in the water inlet pipe 102 is discharged into the wear-resistant water bag 101. As the water is discharged, the wear-resistant water bag 101 continues to expand to push the sand belt 71, so that the sand belt 71 is more closely in contact with the hook for grinding and polishing. When the hook stops driving the abrasive belt 71 to move backward, the movable seat 74 also stops driving the piston rod 106 to move backward, and the hook can be started to be ground and polished. When the hook moves forward and resets and disengages from the abrasive belt 71, the movable seat 74 also moves forward and resets to tighten the abrasive belt 71 through the guide wheel 75. Due to the action of the compression spring 1011, the slide plate 10 moves forward and resets to drive the wear-resistant water bag 101 to move forward and reset, and the movable seat 74 resets and disengages from the piston rod 106. Due to the action of the reset spring 107, the piston rod 106 moves forward and resets to pump a proper amount of water in the wear-resistant water bag 101 back into the cylinder body 105 through the water inlet pipe 102. As the proper amount of water is pumped away, the wear-resistant water bag 101 shrinks and resets. In this way, the abrasive belt 71 can be more closely in contact with the hook for grinding and polishing, thereby improving the polishing effect.

[0036] See also Figure 8 and Fig. 9 As shown, the polishing device for processing crane parts also includes a supporting assembly installed on the electric L-shaped plate 3, the supporting assembly includes a guide rod 11, a supporting mesh plate 12, a supporting spring 13 and a roller 14, the lower part of the electric L-shaped plate 3 is symmetrically fixed with the guide rod 11, and a supporting mesh plate 12 is slidably mounted between the left and right guide rods 11. The supporting mesh plate 12 can support and limit the hook, and the supporting mesh plate 12 is located directly below the shell 81. Support springs 13 are symmetrically connected between the front side of the bottom of the support mesh plate 12 and the lower part of the electric L-shaped plate 3. The support spring 13 is mounted on the guide rod 11, and a roller 14 is rotatably connected to the middle of the top of the support mesh plate 12 at an even interval. When the hook rotates to adjust the angle, the roller 14 can guide the hook.

[0037] See also Figure 8 As shown, the polishing device for crane parts processing also includes an air pump 15, a hose 16 and a frame 17. The frame 17 is fixedly connected to the middle of the bottom of the supporting mesh plate 12, and the middle of the bottom of the frame 17 is connected to the hose 16. The air pump 15 is installed on the right front side of the top of the base 1, and the air extraction end of the air pump 15 is connected to the tail end of the hose 16.

[0038] When the hook moves to between the electric rotating blocks 83 on the left and right sides, the hook is placed on the supporting mesh plate 12, the hook contacts the roller 14, and the hook drives the supporting mesh plate 12 to move downward through the roller 14. The supporting spring 13 is compressed, and the hook can be clamped and fixed, and the subsequent operation of polishing the hook can be started. During the polishing process, the supporting mesh plate 12 can support and limit the hook. When the hook rotates for comprehensive polishing, the roller 14 guides the hook to prevent the hook from rotating and rubbing against the supporting mesh plate 12 to cause wear, thereby ensuring the safety of the hook surface. At the same time, under the action of the supporting spring 13, the supporting mesh plate 12 can always contact the hook for support and limit. In this way, the force exerted on the hook by the electric rotating block 83 can be reduced, thereby ensuring the service life of the electric rotating block 83.

[0039] When the hook is being polished, the vacuum pump 15 is started, and the vacuum pump 15 makes the frame 17 in a negative pressure state through the hose 16, and the frame 17 sucks the dust generated during the polishing into the hose 16, and the dust in the hose 16 is sucked away and collected by the vacuum pump 15. When the polishing of the hook is completed, the vacuum pump 15 is turned off. In this way, the dust generated by the polishing can be prevented from flying around and affecting the working environment, thereby ensuring a good working environment.

[0040] Finally, it is necessary to point out that the above content is only used to help understand the technical solution of the present invention and cannot be understood as limiting the scope of protection of the present invention; non-essential improvements and adjustments made by technical personnel in the field of technology based on the above content of the present invention are all within the scope of protection required by the present invention.

Claims

1. A polishing device for crane parts processing, comprising a base (1) and a control console (2) mounted on the base (1), an electric L-shaped plate (3) mounted on the base (1), a return plate (4) fixedly connected to the top of the base (1), a lifting horizontal cylinder (5) vertically slidably connected to the inner side of the return plate (4), an electric lead screw (6) threadedly connected to the lifting horizontal cylinder (5) mounted on the inner side of the return plate (4), characterized in that: The lifting device also includes a guide roller (7), an abrasive belt (71), a driving motor (72), a guide frame (73), a movable seat (74), a guide wheel (75), a connecting spring (76), a positioning frame (77), a clamping assembly and a switching assembly. Two sets of guide rollers (7) are symmetrically installed on the front side of the lifting horizontal cylinder (5). The abrasive belt (71) is wound between the guide rollers (7). The front side of the lifting horizontal cylinder (5) is symmetrically fixed with a guide frame (73). The movable seat (74) is slidably connected between the guide frames (73). The connecting spring (76) is symmetrically connected between the movable seat (74) and the lifting horizontal cylinder (5). The movable seat (74) is rotatably connected to a guide wheel (75) in contact with the abrasive belt (71). The front side of the lifting horizontal cylinder (5) is symmetrically fixed with a guide frame (73). A positioning frame (77) is located between the guide rollers (7), and the end of the positioning frame (77) contacts the inner side of the sanding belt (71). A driving motor (72) is installed on the lifting horizontal cylinder (5), and the end of the output shaft of the driving motor (72) is fixedly connected to the shaft of one of the guide rollers (7). The clamping assembly is installed on the electric L-shaped plate (3). The clamping assembly is used to clamp and fix the hook and then move it so that the hook moves and contacts the sanding belt (71). Under the action of the connecting spring (76) and the positioning frame (77), the sanding belt (71) is tightly attached to the hook for grinding and polishing. The switching assembly is installed between the base (1) and the clamping assembly and is used to drive the hook to rotate 180 degrees through the clamping assembly to polish the outer position. The clamping assembly comprises a rotating shaft (8) connected to the top of the electric L-shaped plate (3) in a damping rotation manner, a housing (81) being fixedly connected to the bottom end of the rotating shaft (8), a movable plate (82) being symmetrically slidably connected to the housing (81), an electric rotating block (83) being mounted on the movable plate (82) for driving the hook to rotate for angle adjustment, and a driving assembly being arranged inside the housing (81) for driving the movable plate (82) to move; The driving assembly includes a spur gear (86) rotatably connected to the inner side of the housing (81); a driving rack (85) meshing with the spur gear (86) is fixedly connected to the movable plate (82); the driving racks (85) are arranged in a staggered manner; a cylinder (84) is mounted on the housing (81); an end of a telescopic rod of the cylinder (84) is fixedly connected to one of the driving racks (85); The switching assembly comprises a one-way clutch (91) mounted on the rotating shaft (8), a guide gear (92) mounted on the one-way clutch (91), an L-shaped rack (9) meshing with the guide gear (92) fixedly connected to the base (1), and a magnet (93) symmetrically embedded and fixedly connected to the inner side of the electric L-shaped plate (3) and in magnetic contact with the housing (81); The polishing device for processing crane parts also includes a pushing assembly, which includes a slide plate (10) slidably connected between the positioning frame (77), a compression spring (1011) is connected between the slide plate (10) and the positioning frame (77), a wear-resistant water bag (101) is fixedly connected to the slide plate (10) and contacts the inner side of the sand belt (71) and is used to push the sand belt (71) to be closely attached to the hook, a water inlet pipe (102) is connected to the wear-resistant water bag (101), a cylinder body (105) is fixedly connected to the lifting horizontal cylinder (5), a piston rod (106) located directly behind the movable seat (74) is slidably connected to the cylinder body (105), a return spring (107) is connected between the piston rod (106) and the cylinder body (105), the cylinder body (105) is fixedly connected and communicated with the rear end of the water inlet pipe (102), and a water supply pipe (104) is connected to the cylinder body (105), and the top end of the water supply pipe (104) passes through the lifting horizontal cylinder (5).

2. A polishing device for crane parts processing as claimed in claim 1, characterized in that: The polishing device for processing crane parts also includes a support assembly, which includes guide rods (11) symmetrically fixed to the electric L-shaped plate (3), a support mesh plate (12) located directly below the housing (81) is slidably mounted between the guide rods (11) to support and limit the hook, and a support spring (13) mounted on the guide rod (11) is symmetrically connected between the support mesh plate (12) and the electric L-shaped plate (3).

3. A polishing device for crane parts processing as claimed in claim 2, characterized in that: The support assembly also includes rollers (14) rotatably connected to the top of the support mesh plate (12) at even intervals to guide the hook.

4. A polishing device for crane parts processing as claimed in claim 3, characterized in that: The polishing device for crane parts processing also includes a frame (17) fixedly connected to the bottom of the supporting mesh plate (12), a hose (16) being connected to the frame (17), an air pump (15) being installed on the top of the base (1), and an air extraction end of the air pump (15) being connected to the tail end of the hose (16).

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