A surface polishing robot for heating lamp tubes

Abstract

The present application relates to polishing robot technical field, disclose a kind of heating lamp tube's surface polishing robot, the polishing robot contains lifting hanger, hanger plate, four-jaw chuck and first polishing barrel and other components;Initial time lifting hanger suspends hanger plate above the receiving groove port, after second hydraulic rod is aligned four-jaw chuck, mechanical arm drives mechanical gripper to put lamp tube piece, four-jaw chuck is clamped from lamp tube piece bottom middle hole to prevent offset when polishing;Then lifting hanger lowers hanger plate, so that first polishing barrel is nested lamp tube piece and internal spiral polishing piece contacts outer wall, after starting drive motor, motor is driven by gear transmission to drive all first polishing barrel synchronous rotation, while lifting hanger slows down and pushes hanger plate to move down, realize to the rotation of multiple lamp tube piece outer wall and moves down and grinds;Spiral polishing piece cooperates first polishing barrel, spacer sleeve, can concentrate dust and block dust, can stable polishing and reduce dust diffusion caused dust phenomenon.

Description

Technical Field

[0001] This invention relates to the field of polishing robot technology, and in particular to a surface polishing robot for heating lamp tubes. Background Technology

[0002] In industrial manufacturing, surface polishing of heating lamp tubes is a crucial process for ensuring product performance and appearance, especially for the treatment of the curved outer wall of the tube, which requires adaptation to its unique curvature. Currently, traditional polishing operations in this field are primarily manual. Operators hold polishing tools adapted to the curved surface and adjust their hand pressure and movement trajectory according to the curvature of the heating lamp tube's outer wall to keep the polishing tool in close contact with the curved outer wall, gradually completing the surface treatment of the entire curved surface. With the application of automation technology, a type of automated polishing equipment adopts a "fixed tool, moving lamp tube" working method. The polishing tool is preset to adapt to the shape of the lamp tube's curved surface and fixed at the work station. A mechanical transmission mechanism drives the heating lamp tube to move at a uniform speed along the tangent direction of the curved surface. One type of automated equipment uses a "fixed lamp tube, moving tool" design. After the heating lamp tube is stably fixed, the grinding tool is mounted on a robotic arm or transmission device with multi-degree-of-freedom adjustment function. The mechanical device drives the grinding tool to make circular or curved movements around the curved surface according to the three-dimensional data of the outer wall of the lamp tube. At the same time, it finely adjusts the angle and position of the grinding tool in real time to ensure that the tool always maintains a suitable contact state with the outer wall of the curved surface, thus completing the grinding operation of curved surfaces with different curvatures.

[0003] For example, patent CN221390155U discloses a multifunctional cylindrical grinding robot, which includes a housing with four casters at the lower corners, a fixed mounting shell on the right end, and a fan at the top. The fan has an output pipe on the left and a telescopic input pipe on the right, with the right side of the input pipe extending into the mounting shell and a dust suction head attached to the right end. The mounting shell has a movable groove in the middle of its left side, a fixing device on its lower inner wall, and a first telescopic cylinder mounted on the upper right side. This robot can collect grinding dust to prevent spillage and can be adjusted and fixed according to the size of the cylindrical object.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: When existing grinding robots grind the outer wall of cylindrical objects such as heating lamp tubes, they use a dust suction head in conjunction with the grinding mechanism to move and suck up and collect the grinding dust. Centrifugal force throws the grinding dust into the air and disperses it, making it difficult to completely suck up all the dust, and the effect of suppressing dust is not ideal. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that, in the prior art, when a grinding robot grinds the outer wall of a columnar body such as a heating lamp tube, although the dust suction head is used in conjunction with the grinding mechanism to move and suck up the dust, the centrifugal force will cause the dust to fly and disperse, making it difficult to completely suck up the dust and resulting in an unsatisfactory effect in suppressing dust. To this end, we propose a surface grinding robot for heating lamp tubes.

[0006] To achieve the above objectives, this application adopts the following technical solution: a surface polishing robot for heating lamp tubes, comprising a base and a longitudinal slide rail fixedly connected to the top of the base. A transverse slide rail is movably arranged on the outer wall of the longitudinal slide rail, and a robotic arm is fixedly arranged on the outer wall of the transverse slide rail. A robotic claw is fixedly connected to the end of the robotic arm. A receiving groove is opened on the top of the base, and a partition is fixedly connected between the inner walls at the bottom of the receiving groove. Four-jaw chucks are fixedly connected at even intervals on the top of the partition, and the top of the four-jaw chucks secures the lamp tube. Lifting brackets are fixedly connected to the inner walls on both sides of the longitudinal slide rail, and a hanging plate is fixedly connected to the bottom of the lifting bracket. An isolation sleeve is fixedly connected between the four edges of the top of the hanging plate and the top of the base. The base surrounds the outer side of the receiving slot port. A first grinding cylinder is movably installed on the hanging plate corresponding to the lamp tube. An operating hole is opened on the hanging plate on one side of each first grinding cylinder. A spiral grinding disc is fixedly connected to the inner wall of the first grinding cylinder. A first gear is fixedly connected to the outer wall of the first grinding cylinder below the hanging plate. The first gears on adjacent first grinding cylinders mesh with each other. A drive motor is fixedly connected to the top of the hanging plate at one end of the first grinding cylinder. The drive motor transmission shaft extends through to the bottom of the hanging plate and a drive gear is fixedly connected to the outer wall of the rear end. Second gears are movably installed on the bottom of the hanging plates on both sides of the drive gear. The two second gears mesh with the first gears on the adjacent first grinding cylinders.

[0007] Preferably, the first grinding cylinder, the second gear, and the drive gear are evenly distributed in a U-shape, and each row of operating holes is arranged in parallel and staggered intervals with each row of the first grinding cylinder, with the number of operating holes corresponding to the number of the first grinding cylinders.

[0008] Preferably, the diameter of the operating hole is larger than the outer diameter of the lamp tube, and a cross-shaped opening sealing gasket is fixedly connected between the inner walls of the operating hole.

[0009] Preferably, the partition plate on the outer side of the four-jaw chuck is evenly provided with feeding holes, the bottom of the receiving groove below the partition plate is provided with a discharge chute, and the base side wall on the inclined side of the discharge chute is provided with a discharge port, which is connected to the discharge chute.

[0010] Preferably, the lifting frame includes a U-shaped slide plate that is movably engaged with the transverse slide rail and an L-shaped bracket that is fixedly connected to the outer wall of the U-shaped slide plate. A mounting plate is fixedly connected to the top end of the L-shaped bracket, a first hydraulic rod is fixedly connected to the top of the mounting plate, the bottom of the first hydraulic rod is fixedly connected to the two ends of the top of the lifting plate, a second hydraulic rod is fixedly connected to the side wall of one end of the L-shaped bracket, and the end of the second hydraulic rod is fixedly connected to the inner wall of the transverse slide rail.

[0011] Preferably, when the first hydraulic rod is in the normal retracted state, the bottom port of the first grinding cylinder is suspended above the top port of the lamp tube component. At this time, the lamp tube component is secured to the outer wall of the top pawl of the four-jaw chuck.

[0012] Preferably, side plates are fixedly connected to the outer walls of both ends of the longitudinal slide rail, and a first lead screw is movably arranged between the inner walls of the side plates. One end of the first lead screw extends through to the outside of the side plate, and the rear end is fixedly connected to a first motor. The first lead screw is suspended on the outside of the longitudinal slide rail.

[0013] Preferably, the bottom ends of the transverse slide rail are threaded onto the outer wall of the first lead screw. The transverse slide rail spans and is suspended across the outer side of the longitudinal slide rail on both sides of the top of the base. A second lead screw is movably arranged between the side walls of the transverse slide rail. One end of the second lead screw extends through to the outside of the side wall of the transverse slide rail and the rear end is fixedly connected to a second motor. A moving frame is threaded onto the outer wall of the second lead screw. A third lead screw is movably arranged between the upper and lower base plates of the moving frame. The top end of the third lead screw extends through to the top of the moving frame and the rear end is fixedly connected to a third motor. A lifting plate is threaded onto the outer wall of the third lead screw, and the robotic arm is fixedly connected to the outer wall of the lifting plate.

[0014] Preferably, a concave notch is provided on the side wall at the bottom port of the first grinding cylinder, and an internal toothed rotating ring is movably fitted on the side wall at the concave notch. Toothed rings are evenly spaced and fitted on the side wall of the concave notch on the inner side of the internal toothed rotating ring. The outer teeth at one end of the toothed ring mesh with the meshing teeth on the inner side of the internal toothed rotating ring. A screw is threadedly connected to the threaded hole in the middle of the toothed ring. The end of the screw extends to the outer side of the bottom of the first grinding cylinder, and a second grinding cylinder is fixed on the outer wall of the screw on the outer side of the bottom of the first grinding cylinder. The inner wall of the second grinding cylinder is provided with the same spiral grinding disc as the inside of the first grinding cylinder, and the spiral grinding discs inside the second grinding cylinder and the first grinding cylinder rotate in the same direction.

[0015] Preferably, a limiting groove is provided at the top of the second grinding cylinder corresponding to the screw, a bottom cylinder is movably sleeved on the outer wall of the bottom straight rod of the screw, a spiral groove is provided on the inner wall of the bottom cylinder, a hemispherical protrusion is fixedly connected to one side of the outer wall of the bottom straight rod of the screw, the hemispherical protrusion is movably engaged with the spiral groove, and a spring is fixedly connected to the upper end of the bottom plate of the bottom cylinder, the upper end of the spring is in contact with the bottom of the screw.

[0016] The technical effects and advantages of this invention are as follows:

[0017] In this invention, a lifting frame first suspends a plate above the receiving slot port. A second hydraulic rod extends, aligning the operating hole of the plate with a four-jaw chuck. A robotic arm drives a robotic claw to grasp the lamp tube and place it through the operating hole. The lamp tube is positioned above the four-jaw chuck on the bottom plate of the receiving slot. The four pawls of the four-jaw chuck securely hold the lamp tube from within, preventing rotational shift during grinding. Subsequently, the lifting frame lowers the plate, allowing the first grinding cylinder to press down and engage with the top of the lamp tube, causing the spiral grinding discs inside the cylinder to contact the outer wall of the tube. After starting the drive motor, it drives the drive gear to mesh with the second... The gears, through the meshing of the second gear with the first gear, cause all the first grinding cylinders on the hanging plate to rotate synchronously. The spiral grinding discs rotate and grind accordingly. At the same time, the lifting frame slowly pushes the hanging plate down in the receiving groove, allowing the grinding cylinders and spiral grinding discs to rotate and move down along the outer wall of the lamp tube. This allows for the simultaneous grinding of the outer walls of multiple lamp tubes. Furthermore, when the spiral grinding discs rotate, they guide the dust to fall to the bottom of the receiving groove like an auger, and can also buffer the dust that is centrifugally thrown away. With the help of the isolation sleeve, the dust is locked in the receiving groove, effectively reducing dust and ensuring grinding stability while controlling the spread of dust. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the overall structure of a surface polishing robot for heating lamp tubes according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the base of a surface polishing robot for heating lamp tubes according to the present invention.

[0021] Figure 3 This is a schematic diagram of the upright mounting structure of the hanging plate and the first grinding cylinder of a surface polishing robot for heating lamp tubes according to the present invention.

[0022] Figure 4 This is a schematic diagram of the assembly structure of the lamp tube component and the four-jaw chuck of a surface polishing robot for heating lamp tubes according to the present invention.

[0023] Figure 5 This is a schematic diagram of the inverted installation structure of the hanging plate and the first grinding cylinder of a surface polishing robot for heating lamp tubes according to the present invention.

[0024] Figure 6 This is a cross-sectional view of the first grinding cylinder of a surface grinding robot for heating lamp tubes according to the present invention;

[0025] Figure 7 This is a schematic diagram of the lifting frame structure of a surface polishing robot for heating lamp tubes according to the present invention;

[0026] Figure 8 This is a schematic diagram of the assembly structure of the first and second grinding cylinders of a surface grinding robot for heating lamp tubes according to the present invention.

[0027] Figure 9 This invention relates to a surface polishing robot for heating lamp tubes. Figure 8 Enlarged structural diagram at point A in the middle;

[0028] Figure 10 This is a schematic diagram of the bottom cylinder structure of a surface polishing robot for heating lamp tubes according to the present invention.

[0029] Figure 11 This is a schematic diagram of the installation structure of components such as the longitudinal slide rail, the transverse slide rail, and the robotic arm of a surface polishing robot for heating lamp tubes according to the present invention.

[0030] Figure 12 This invention relates to a surface polishing robot for heating lamp tubes. Figure 11 Enlarged structural diagram at point B.

[0031] In the diagram: 1. Base; 11. Receiving groove; 12. Partition; 13. Discharge hole; 14. Unloading chute; 15. Discharge port; 2. Longitudinal slide rail; 21. First lead screw; 3. Transverse slide rail; 31. Second lead screw; 32. Moving frame; 33. Third lead screw; 34. Lifting plate; 4. Robotic arm; 41. Robotic gripper; 5. Four-jaw chuck; 51. Lamp tube; 6. Lifting bracket; 61. U-shaped sliding plate; 62. L-shaped bracket; 63. Mounting plate; 4. First hydraulic rod; 65. Second hydraulic rod; 7. Hanging plate; 71. Operating hole; 72. Isolation sleeve; 73. Drive motor; 74. Drive gear; 75. Second gear; 8. First grinding cylinder; 81. Spiral grinding disc; 82. Internal gear ring; 83. Gear ring; 84. Screw; 841. Bottom cylinder; 842. Spiral groove; 843. Hemispherical protrusion; 844. Spring; 85. Second grinding cylinder; 851. Limiting groove; 86. First gear. Detailed Implementation

[0032] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0033] Reference Figures 1-7 and Figures 11-12As shown, the present invention provides a technical solution: a surface polishing robot for heating lamp tubes, comprising a base 1, a longitudinal slide rail 2, a transverse slide rail 3, a robotic arm 4, a four-jaw chuck 5, and other components. The base 1, with a square structure, has four corners at its bottom fixed with bolts to secure lockable rollers for easy movement. The longitudinal slide rail 2 is fixedly connected to both sides of the top of the base 1. A transverse slide rail 3 is movably mounted on the outer wall of the longitudinal slide rail 2. A PLC controller (preferably Siemens S7-1214C) for autonomous operation is fixedly mounted on the side wall of one end of the transverse slide rail 3. A robotic arm 4 is fixedly mounted on the outer wall of the transverse slide rail 3, and a robotic claw 41 is fixedly connected to the end of the robotic arm 4. The robotic claw 41 automatically grips and loads the heating lamp tubes to be polished.

[0034] Side plates are fixedly connected to the outer walls at the four corners of the longitudinal slide rail 2. A first lead screw 21 is movably installed between the inner walls of the side plates through bearings. One end of the first lead screw 21 extends through to the outside of the side plate. A first motor is fixedly installed on the outer wall of the other side plate by bolts. The output end of the first motor is fixedly connected to the end of the first lead screw 21 through a coupling. The first lead screw 21 is suspended parallel to the outside of the longitudinal slide rail 2.

[0035] The bottom ends of the transverse slide rail 3 are threaded onto the outer wall of the first lead screw 21. The transverse slide rail 3 spans and is suspended on the outer side of the longitudinal slide rails 2 on both sides of the top of the base 1. A second lead screw 31 is movably mounted between the side walls of the transverse slide rail 3 via bearings. One end of the second lead screw 31 extends through to the outside of the side wall of one end of the transverse slide rail 3. A second motor is fixedly mounted on the outside of the side wall of the end of the transverse slide rail 3 by bolts. The output end of the second motor is fixedly connected to the end of the second lead screw 31 by a coupling. A movable frame 32 is threaded onto the outer wall of the second lead screw 31. A third lead screw 33 is movably mounted between the upper and lower base plates of the movable frame 32. The top end of the third lead screw 33 extends through to the top end of the moving frame 32. The top of the moving frame 32 is fixedly mounted with a third motor (preferably including but not limited to Siemens V90 series 1FL6064-1AC61-2AG1, SycoTec 4060ER-S, Oriental Motor AS46MAP, Mitsubishi SF-JR series 71M, etc.) by bolts. The output end of the third motor is fixedly connected to the end of the third lead screw 33 by a coupling. The outer wall of the third lead screw 33 is threaded with a lifting plate 34, and the robotic arm 4 is fixedly connected to the outer wall of the lifting plate 34.

[0036] Specifically, the first motor drives the first lead screw 21 to move the transverse slide rail 3 along the longitudinal slide rail 2, the second motor drives the second lead screw 31 to move the moving frame 32 along the transverse slide rail 3, and the third motor drives the third lead screw 33 to move the lifting plate 34 to move the robotic arm lifting 4. The robotic claw 41 can automatically grab the heating lamp tube and fix it with the four-jaw chuck 5 for grinding. The selected Siemens V90 series motors ensure motion accuracy, and the overall grinding position can be flexibly adjusted to realize automated loading and unloading and precise grinding, improving the convenience and efficiency of operation.

[0037] like Figures 1-7 As shown, to avoid dust problems during the polishing of heating lamps, this application further proposes a preferred technical solution: a square receiving groove 11 is opened at the front edge of the top of the base 1. A partition 12 is fixedly connected to the inner wall at the bottom of the receiving groove 11, and four-jaw chucks 5 are evenly spaced and fixedly connected to the top of the partition 12 (in the prior art, four independent and adjustable chucks work in conjunction with an internal transmission mechanism, mostly a screw or worm gear structure. In use, the four chucks can be moved independently or synchronously along the radial direction of the chuck by manually rotating the adjusting rod or by electric drive; for heating... For cylindrical workpieces such as lamp tubes, after placing the workpiece in the center of the chuck, adjust each jaw to move closer to the outer wall of the workpiece until the four jaws evenly clamp the workpiece from all sides, achieving stable positioning of cylindrical works of different diameters. The top of the four-jaw chuck 5 secures the lamp tube 51. Lifting brackets 6 are fixedly connected to the inner walls on both sides of the longitudinal slide rail 2. The bottom of the lifting brackets 6 is fixedly connected to the hanging plate 7, which is adapted to the size of the receiving groove 11. An isolation sleeve 72 is fixedly connected between the top four edges of the hanging plate 7 and the top of the base 1. The isolation sleeve 72 has the effect of ventilation and dust separation to isolate grinding dust. The separator can be made of materials such as gauze. The base 1 surrounds the outside of the receiving groove 11, and the lower end of the isolation sleeve 72 is set away from the receiving groove 11. The first grinding cylinder 8 is movably inserted through the hanging plate 7 at the corresponding position of the lamp tube 51. The first grinding cylinder 8 is movably locked on the hanging plate 7. Each first grinding cylinder 8 has an operation hole 71 on one side of the hanging plate 7. A spiral grinding disc 81 is fixedly connected to the inner wall of the first grinding cylinder 8. The spiral grinding disc 81 is distributed in a spring spiral shape on the inner wall of the first grinding cylinder 8. The first grinding cylinder 8 below the hanging plate 7 is fixedly connected to the outer wall of the first grinding cylinder 8. Gear 86, the first gear 86 on the adjacent first grinding cylinder 8 meshes with each other, a drive motor 73 is fixedly connected to the top of the hanging plate 7 at one end of the first grinding cylinder 8, the drive shaft of the drive motor 73 extends through to the bottom rear end of the hanging plate 7 and a drive gear 74 is fixedly connected to it, the bottom of the hanging plate 7 on both sides of the drive gear 74 is movably provided with second gears 75, the two second gears 75 mesh with the first gear 86 on the adjacent first grinding cylinder 8 respectively, the two rows of first gears 86 and second gears 75 that are meshed end to end are symmetrically arranged about the drive gear 74.

[0038] The first grinding cylinder 8, the second gear 75, and the drive gear 74 are evenly distributed in a U-shape. Each row of operating holes 71 is parallel to and staggered with each row of the first grinding cylinder 8, and the number of operating holes 71 corresponds to the number of first grinding cylinders 8. The diameter of the operating holes 71 is much larger than the outer diameter of the lamp tube component 51, which facilitates the robotic arm 4 to operate the robotic claw 41 to grasp and place the heating lamp tube from the operating holes 71. A cross-shaped opening sealing gasket is fixedly connected between the inner walls of the operating holes 71 to prevent powder from rising with the airflow and leaking out, forming dust.

[0039] The lifting frame 6 includes a U-shaped sliding plate 61, an L-shaped bracket 62, a mounting plate 63, a first hydraulic rod 64, and a second hydraulic rod 65. The two U-shaped sliding plates 61 are respectively movably engaged on the inner outer wall of the top beam of the transverse slide rail 3. The L-shaped bracket 62 is welded and fixed to the outer wall of the U-shaped sliding plate 61. The mounting plate 63 is fixedly connected to the top end of the L-shaped bracket 62. The first hydraulic rod 64 is fixedly connected to the top of the mounting plate 63. The bottom of the first hydraulic rod 64 is fixedly connected to the two ends of the top of the lifting plate 7. The second hydraulic rod 65 is fixedly connected to the side wall of one end of the L-shaped bracket 62. The end of the second hydraulic rod 65 is fixedly connected to the inner wall of the transverse slide rail 3.

[0040] When the first hydraulic rod 64 is in its normal retracted state, the bottom port of the first grinding cylinder 8 is suspended above the top port of the lamp tube 51, and at this time, the lamp tube 51 is secured to the outer wall of the top pawl of the four-jaw chuck 5. When the second hydraulic rod 65 is in its maximum extension stroke, the operating hole 71 is correspondingly suspended above the top port of the lamp tube 51.

[0041] Specifically, initially, the lifting frame 6 suspends the hanging plate 7 above the port of the receiving groove 11. The second hydraulic rod 65 extends to suspend the operating hole 71 on the hanging plate 7 above the four-jaw chuck 5. At this time, the robotic arm 4 drives the robotic claw 41 to grab the lamp tube 51 to be polished and put it out from the operating hole 71. Press it onto the top of the four-jaw chuck 5 on the bottom plate of the receiving groove 11. The four pawls of the four-jaw chuck 5 are used to lock and support the lamp tube 51 from the middle hole, preventing the lamp tube 51 from rotating and shifting during polishing and affecting the polishing. After the lamp tube 51 is locked, the lifting frame 6 lowers the height of the hanging plate 7, so that each first polishing cylinder 8 is pressed down and fitted onto the top of the lamp tube 51, so that the spiral polishing disc 81 inside the first polishing cylinder 8 contacts the outer wall at the top port of the lamp tube 51.

[0042] In use, the drive motor 73 is started, which drives the drive gear 74 to mesh with the second gear 75 to rotate. The second gear 75 then meshes with the first gear 86, causing all the first grinding cylinders 8 on the hanging plate 7 to rotate synchronously. When the first grinding cylinders 8 rotate, they push the spiral grinding discs 81 to rotate and begin to grind the lamp tube 51. As the grinding progresses, the lifting bracket 6 continuously and slowly pushes the hanging plate 7 down in the receiving groove 11, so that the first grinding cylinders 8 and the spiral grinding discs 81 continue to rotate and move down along the outer wall of the lamp tube 51, thereby simultaneously completing the grinding effect on the outer wall of multiple lamp tubes 51. The spiral grinding discs 81 rotate like an auger. The process involves grinding, and the grinding powder from the outer wall of the lamp tube 51, combined with the action of the first grinding cylinder 8, causes the powder to fall to the bottom of the receiving groove 11. The adjacent blades of the spiral grinding disc 81 buffer and concentrate the powder that is centrifugally thrown away. With the blocking effect of the isolation sleeve 72, the grinding powder is fully locked in the receiving groove 11, effectively preventing dust caused by the grinding powder being thrown up by centrifugal force. After grinding, the four-jaw chuck 5 releases its grip on the bottom of the lamp tube 51, and the robotic arm 4 drives the robotic claw 41 to remove the finished lamp tube 51 from the receiving groove 11. The above operation is repeated to continue grinding the outer surface of the heating lamp tube.

[0043] like Figure 2 As shown, the partition plate 12 on the outer side of the four-jaw chuck 5 is evenly provided with discharge holes 13, and the bottom of the receiving groove 11 below the partition plate 12 is provided with a discharge chute 14. The side wall of the base 1 on the inclined side of the discharge chute 14 is provided with a discharge port 15, and the discharge port 15 is connected to the discharge chute 14.

[0044] Specifically, the powder falling off the heating lamp tube during grinding settles due to gravity and automatically falls through the discharge hole 13 on the partition 12 onto the bottom plate of the discharge chute 14. It then slides down the inclined bottom plate of the discharge chute 14 and slides to the discharge port 15 due to gravity. With the help of the matching conveying pipe and mobile device, the grinding powder can be automatically discharged, avoiding the problem of powder accumulating inside the equipment during continuous grinding and requiring regular cleaning.

[0045] Reference Figures 6-10As shown in this embodiment: a concave notch is provided on the side wall of the bottom port of the first grinding cylinder 8. An internal toothed rotating ring 82 is movably fitted on the side wall of the concave notch. Toothed rings 83 are evenly spaced and fitted on the side wall of the concave notch inside the internal toothed rotating ring 82. The toothed rings 83 can be rectangularly distributed on the side wall of the concave notch. The outer teeth of one end of the toothed ring 83 mesh with the inner teeth of the internal toothed rotating ring 82. A screw 84 is threaded into the threaded hole in the middle of the toothed ring 83. The end of the screw 84 is connected to the threaded hole. Extending to the outer bottom of the first grinding cylinder 8, a groove is provided on the inner wall of the cavity above the toothed ring 83 that accommodates the screw 84. A protrusion on the outer wall of the top of the screw 84 engages in the groove. A second grinding cylinder 85 is fixed on the outer wall of the screw 84 on the outer bottom of the first grinding cylinder 8. A spiral grinding disc 81, identical to that inside the first grinding cylinder 8, is provided on the inner wall of the second grinding cylinder 85. The spiral grinding disc 81 inside the second grinding cylinder 85 and the first grinding cylinder 8 have the same rotation direction.

[0046] A limiting groove 851 is provided at the top of the second grinding cylinder 85 corresponding to the screw 84. A bottom cylinder 841 is movably sleeved on the outer wall of the straight rod at the bottom of the screw 84. A spiral groove 842 is provided on the inner wall of the bottom cylinder 841. A hemispherical protrusion 843 is fixedly connected to the outer wall of one side of the straight rod at the bottom of the screw 84. The hemispherical protrusion 843 is movably engaged with the spiral groove 842. A spring 844 is fixedly connected to the upper end of the bottom plate of the bottom cylinder 841. The upper end of the spring 844 is in contact with the bottom of the screw 84. The shape of the top port of the limiting groove 851 is the same as that of the bottom cylinder 841. The two intersect in a cross shape to lock together. When the spring 844 is fully compressed, the protrusions on both sides of the top port of the bottom cylinder 841 intersect in a cross shape with the top port of the limiting groove 851.

[0047] Specifically, after aligning the limiting groove 851 at the top of the second grinding cylinder 85 with the bottom cylinder 841 at the end of the screw 84, the bottom cylinder 841 is fully inserted into the limiting groove 851, so that the bottom of the bottom cylinder 841 is in contact with the bottom plate of the limiting groove 851. At this time, the top port of the second grinding cylinder 85 is in close contact with the bottom port of the first grinding cylinder 8. The internal toothed rotating ring 82 at the bottom port of the second grinding cylinder 85 is rotated, and the internal teeth of the internal toothed rotating ring 82 mesh with one end of the toothed ring 83, causing it to rotate. After the toothed ring 83 rotates, it drives the screw 84 to move downward through the internal threaded hole, so that its bottom moves into the limiting groove 851. When the screw 84 moves downward, the bottom cylinder 841 is blocked by the bottom plate of the limiting groove 851 and cannot continue to move, thus making the screw 84... The downward movement compresses the spring 844, and at the same time, as the screw 84 moves downward, it pushes the hemispherical protrusion 843 to slide along the spiral groove 842 on the inner wall of the bottom cylinder 841, thereby pushing the bottom cylinder 841 to rotate within the limiting groove 851. After the screw 84 moves downward and compresses the spring 844 to the bottom, the protrusions on both sides of the top port of the bottom cylinder 841 and the top port of the limiting groove 851 intersect in a cross shape to form a lock, completing the continuation of the first grinding cylinder 8 of the second grinding cylinder 85. This allows the length of the grinding cylinder and the spiral grinding disc 81 to be adapted to the length of the heating lamp tube, meeting the grinding needs of heating lamp tubes of different lengths, reducing the dispersion range of grinding dust, and further reducing the probability of dust rising and leaking.

[0048] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A surface finishing robot for heating lamp tubes, characterized in that The utility model provides a lamp tube polishing device, including the base and the longitudinal slide rail fixedly connected in the top of base, the outer wall of longitudinal slide rail is movably provided with the transverse slide rail, the outer wall of transverse slide rail is fixedly provided with mechanical arm, the end of mechanical arm is fixedly connected with mechanical claw, the top of base is seted up with the containing groove, the bottom of containing groove is fixedly connected with the partition wall between the inner wall, the partition wall top is evenly fixedly connected with four jaw chuck, four jaw chuck top clamps lamp tube spare, the inner wall of longitudinal slide rail both sides is fixedly connected with the lift hanger respectively, lift hanger bottom is fixedly connected with the hanging plate, the top of hanging plate is fixedly connected with the isolating sleeve between the top of base and the periphery of around, the base is around in the containing groove port outside, the first polishing cylinder is movably passed through and is set up respectively in the hanging plate top of corresponding lamp tube spare, every first polishing cylinder side's hanging plate is seted up with operating hole, the inner wall of first polishing cylinder is fixedly connected with spiral polishing piece, the outer wall of first polishing cylinder below is fixedly connected with first gear, the first gear on adjacent first polishing cylinder is interlocked, the top of first polishing cylinder one end's hanging plate is fixedly connected with drive motor, drive motor transmission shaft extends to the outer wall of hanging plate bottom after end and is fixedly connected with drive gear, the bottom of hanging plate both sides of drive gear is movably provided with second gear, two second gears are connected with the first gear on adjacent first polishing cylinder respectively.

2. A surface finishing robot for heating lamp tubes according to claim 1, characterized in that: The first polishing cylinder, second gear and drive gear are uniformly distributed in U shape, and each row of operating holes and each row of first polishing cylinders are arranged in parallel and staggered.

3. A surface finishing robot for heating lamp tubes according to claim 2, characterized in that: The diameter of the operating hole is larger than the outer hole diameter of the lamp tube, and a cross-shaped opening gasket is fixedly connected between the inner walls of the operating hole.

4. A surface finishing robot for heating lamp tubes according to claim 1, characterized in that: The partition wall outside the four-jaw chuck is evenly provided with a discharging hole, the bottom of the containing groove below the partition wall is provided with a discharging chute, and the bottom wall of the discharging chute is provided with a discharge port.

5. A surface finishing robot for heating lamp tubes according to claim 1, characterized in that: The lifting hanger includes a U-shaped slide plate movably clamped on the transverse slide rail and an L-shaped support fixedly connected to the outer wall of the U-shaped slide plate, the top end of the L-shaped support is fixedly connected to the mounting plate, the top of the mounting plate is fixedly connected to the first hydraulic rod, the bottom of the first hydraulic rod is fixedly connected to the top of the hanging plate, the sidewall of one end of the L-shaped support is fixedly connected to the second hydraulic rod, and the end of the second hydraulic rod is fixedly connected to the inner wall of the transverse slide rail.

6. A surface finishing robot for heating lamp tubes according to claim 5, characterized in that: When the first hydraulic rod is in a normal contraction state, the bottom port of the first polishing cylinder is suspended above the top port of the lamp tube, and at this time, the lamp tube is clamped on the outer wall of the pawl at the top of the four-jaw chuck.

7. A surface finishing robot for heating lamp tubes according to claim 1, characterized in that: The outer walls of both ends of the longitudinal slide rail are fixedly connected to the side plates, the first lead screw is movably arranged between the inner walls of the side plates, one end of the first lead screw extends to the outer end of the side plate and is fixedly connected to the first motor, and the first lead screw is suspended outside the longitudinal slide rail.

8. A surface finishing robot for heating lamp tubes according to claim 7, characterized in that: The bottom of the transverse slide rail is threadedly connected to the outer wall of the first lead screw, the transverse slide rail is suspended on the outer side of the longitudinal slide rail on the top of the base, the second lead screw is movably arranged between the side walls of the transverse slide rail, the second lead screw is fixedly connected to the second motor at the end extending to the outer end of the side wall of the transverse slide rail, the moving frame is threadedly connected to the outer wall of the second lead screw, the third lead screw is movably arranged between the upper and lower plates of the moving frame, the third lead screw is fixedly connected to the third motor at the top end extending to the top end of the moving frame, the lifting plate is threadedly connected to the outer wall of the third lead screw, and the mechanical arm is fixedly connected to the outer wall of the lifting plate.

9. A surface finishing robot for heating lamp tubes according to claim 1, characterized in that: The inner recess is formed in the side wall of the first polishing cylinder at the bottom port, the inner tooth ring is movably sleeved on the side wall of the inner recess, the tooth rings are uniformly and separately embedded in the side wall of the inner recess on the inner side of the inner tooth ring, the outer teeth of the tooth ring at one end are engaged with the inner teeth on the inner side of the inner tooth ring, the screw rod is threadedly connected in the threaded hole in the middle of the tooth ring, the screw rod extends to the outer side of the bottom of the first polishing cylinder, the second polishing cylinder is clamped on the outer wall of the screw rod on the outer side of the bottom of the first polishing cylinder, the second polishing cylinder is provided with the spiral polishing piece which is the same as the spiral polishing piece in the first polishing cylinder, and the spiral polishing pieces in the second polishing cylinder and the first polishing cylinder are the same in rotation direction.

10. A surface finishing robot for heating lamp tubes according to claim 9, characterized in that: The limiting groove is formed in the top of the second polishing cylinder corresponding to the screw rod, the bottom cylinder is movably sleeved on the outer wall of the straight rod at the bottom of the screw rod, the spiral sliding groove is formed in the inner wall of the bottom cylinder, the hemispherical protrusion is fixedly connected to the outer wall of the straight rod on one side of the bottom of the screw rod, the hemispherical protrusion is movably clamped in the spiral sliding groove, and the spring is fixedly connected to the bottom plate of the bottom cylinder.

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