Multi-angle grinding and polishing equipment for machining roof rack

Abstract

The invention discloses multi-angle grinding and polishing equipment for car roof luggage rack machining, relates to the technical field of car roof luggage rack machining, and solves the technical problem that spraying equipment is easily blocked and damaged due to splashing of chippings. The multi-angle grinding and polishing equipment comprises a polishing frame and a rotatable feeding frame, polishing cloth wheels are arranged below the polishing frame, and protection plates are installed on the polishing cloth wheels; two spraying heads are fixedly installed on one side of each protection plate, a same connecting rod is fixedly installed between every two spraying heads, a push rod frame is fixedly installed on one side of each connecting rod, a discharging push rod is arranged in each push rod frame, and a connecting plate is fixedly installed at the output end of each discharging push rod; two material spraying ports are fixedly mounted above each connecting plate, a nozzle inner frame is fixedly mounted in each material spraying port, a plugging block is fixedly mounted on one side of each nozzle inner frame, and a notch is formed in the surface of each protective plate. According to the material spraying device, the material spraying heads and operators are prevented from being damaged by chippings, and the equipment and the operators are protected.

Description

Technical Field

[0001] This invention relates to the field of roof rack processing technology, specifically a multi-angle grinding and polishing device for roof rack processing. Background Technology

[0002] Roof racks are storage devices fixed to the roof of a car. They are usually composed of a base frame, crossbars, and accessories made of aluminum alloy or high-strength steel. The processing and polishing of roof racks is a surface treatment process for the base material. Through physical grinding, scratches, burrs, and other defects left by stamping and welding are removed. This not only improves the surface gloss and optimizes the product texture, but also reduces the risk of corrosion, extends the service life, and lays the foundation for subsequent processes such as painting and electroplating, ensuring that the coating or plating adheres firmly.

[0003] Currently, multi-angle polishing devices require spraying polishing fluid onto the surface of a rotating cloth wheel during the polishing process. To ensure a safe polishing environment, especially to prevent the splashing of debris generated during polishing, protective equipment is generally required. To ensure that the polishing fluid is sprayed onto the cloth wheel as required, current polishing machines simply have slots cut into the protective plate. However, in actual operation, waste fluid and debris generated during polishing can splash onto the nozzle, causing blockages and damage to the spraying equipment. In more serious cases, debris can splash into the face and eyes of workers, causing injury. It is particularly important to note that because the spraying equipment does not spray continuously but intermittently onto the polishing cloth wheel, the existing slots may not function properly at certain times, resulting in drawbacks.

[0004] Meanwhile, when polishing the rotating surfaces of the luggage rack, the polishing device requires support equipment to stably support the luggage. Traditional support equipment relies on hydraulic or motor drive to rotate the support equipment and press it against the bottom of the luggage rack, with some limiting devices to fix the luggage rack. However, in actual production, this fixing method is difficult to maintain stable support after relying on other structures to assist the drive, and the fatigue damage of the drive equipment affects its service life. This is because the luggage rack is not a regular long strip shape. When polishing different surfaces, the support height is different, and the luggage rack needs to be polished on multiple surfaces, so it needs to be rotated relatively frequently. Specifically, when the arched luggage rack is placed upright, the height is relatively high, but when it is rotated to polish the original top surface, the height will drop instantly. Therefore, each rotation requires the drive structure to adjust the drive process accordingly to assist the processing, which is complicated to control and difficult to maintain. Moreover, the existing support relies directly on the drive end. During polishing, the polishing wheel is in rigid contact with the luggage rack. Therefore, during polishing, the drive structure is always subjected to a force in the opposite direction, which affects the service life of the drive structure.

[0005] Based on this, the present invention provides a multi-angle grinding and polishing equipment for processing roof racks to solve the above problems. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the present invention provides a multi-angle grinding and polishing equipment for processing roof racks. The present invention has an ingenious structure and focuses on practicality, effectively solving the technical problems that flying debris can easily cause blockage and damage to the spraying equipment and can easily cause fatigue damage to the drive equipment.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-angle grinding and polishing device for processing roof racks includes a polishing frame and a rotatable loading rack placed on one side of the polishing frame. Two polishing cloth wheels are located below the polishing frame, each with a protective plate. Two nozzles are fixedly installed on one side of each protective plate. A connecting rod is fixedly installed between every two nozzles. A push rod frame is fixedly installed on one side of each connecting rod. A discharge push rod is installed inside each push rod frame. A connecting plate is fixedly installed at the output end of each discharge push rod. Two nozzles are fixedly installed above each connecting plate, each slidably connected to different nozzles. An inner nozzle frame is fixedly installed inside each nozzle. A sealing block slidably connected to the nozzle is fixedly installed on one side of each inner nozzle frame. A slot corresponding to the nozzle position is opened on the surface of each protective plate.

[0009] Preferably, each of the two protective plates is fixedly installed with a dustproof fixing bracket located on both sides of the slot. Each pair of dustproof fixing brackets is slidably connected to a push arm fixedly installed on one side of the same connecting plate. Each push arm is fixedly installed with a push rack at one end. Each slot has two symmetrically distributed flip shafts rotatably installed. Each pair of flip shafts has two symmetrically distributed residual gears fixedly installed at both ends, which mesh with one of the push racks. Each pair of flip shafts has two flip plates fixedly installed on their surfaces, located in the same slot.

[0010] Preferably, the polishing frame has two connecting frames slidably connected inside, each connecting frame has a protective frame fixedly installed at its bottom, each protective frame has a swing arm rotatably connected inside, each swing arm has a polishing driver fixedly installed on one side, each polishing driver has a support frame fixedly installed on one side, each support frame has a support shaft rotatably connected inside, and the polishing cloth wheel is installed on the support shaft.

[0011] Preferably, an adjusting push rod is provided between adjacent connecting frames and swing arms.

[0012] Preferably, two symmetrically distributed limiting rods are fixedly installed above the polishing frame, a movable body is slidably connected above the polishing frame through the two limiting rods, a support rail is fixedly installed above the polishing frame, and the movable body rolls on the upper surface of the support rail.

[0013] Preferably, the rotatable loading rack is fixedly connected to two sets of symmetrically distributed adjustable rails. An angle driver is fixedly installed above each set of adjustable rails. Each angle driver is rotatably connected to one side of multiple synchronously driven luggage racks to be processed. Four symmetrically distributed adjustment frames are fixedly installed above the rotatable loading rack. A fastening push rod is fixedly installed in each adjustment frame. A push block is fixedly installed at the output end of each fastening push rod. Two symmetrically distributed sliding sleeves are slidably connected in each adjustment frame. A bending rod is fixedly installed on each sliding sleeve. A sliding rod is fixedly installed on one side of each bending rod. A pushed frame that can contact the push block is slidably connected to the surface of each sliding rod. A telescopic rod is hinged to one side of each pushed frame.

[0014] Preferably, a fastening sleeve is rotatably mounted on the adjusting frame, and two fixing toothed sleeves are fixedly mounted on the surface of each fastening sleeve. A telescopic cylinder is fixed to one end of each telescopic rod, and a sliding toothed sleeve matching the fixing toothed sleeve is rotatably connected to one side of the telescopic cylinder via the sleeve. The telescopic cylinder is slidably connected to the same fastening sleeve that can support the luggage rack to be processed through a keyway. A sliding groove is provided on the adjusting frame, and a sliding rod that slides in the sliding groove is fixed to one side of the sliding toothed sleeve.

[0015] Preferably, a fixing plate is fixedly installed on the surface of each of the bending rods, and a limit compression spring is fixedly installed between each fixing plate and the adjacent pushed frame.

[0016] Preferably, each of the adjustment frames has two symmetrically distributed limiting rails fixedly installed inside, and each of the sliding sleeves is slidably connected to the surface of the limiting rails via a keyway.

[0017] Preferably, an angle support frame is fixedly installed above each set of adjustable rails, and multiple limit frames are rotatably connected to one side of each angle driver and angle support frame, and each luggage rack to be processed is snapped into one end of two corresponding limit frames.

[0018] The present invention has the following technical advantages.

[0019] 1. This invention uses a feeding pusher to drive a connecting plate, which in turn drives the spray nozzle, the sealing block, and the push rack. The sealing block controls the flow of polishing liquid, and the flip plate seals the slot when the liquid is not being supplied, thus preventing debris from damaging the spray head and injuring the operator, thereby protecting the equipment and the operator.

[0020] 2. This invention utilizes a fastening push rod within an adjusting frame to drive a pushing block, which, in conjunction with the pushed frame and telescopic rod, causes the fastening sleeve to press firmly against the luggage rack to be processed. Stable fixation is achieved through the engagement of a sliding toothed sleeve and a fixed toothed sleeve, ensuring the workpiece does not shift during polishing. Furthermore, since the rotation angle of the fastening sleeve varies when the luggage rack is rotated to change different surfaces, this structure relies on pressure changes to trigger the fixation of the fastening sleeve. Therefore, there is no need to adjust accordingly to the driving process of the fastening push rod as it moves towards different surfaces. Moreover, the reaction force of the polishing cloth wheel on the luggage rack is transmitted to the sliding toothed sleeve, rather than directly to the fastening push rod, thus extending the service life of the fastening push rod. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the assembly structure of the swing arm, polishing driver, and support frame in this invention.

[0024] Figure 3 This is a schematic diagram of the assembly structure of the support frame, polishing cloth wheel and support shaft in this invention.

[0025] Figure 4 This is a schematic diagram of the assembly structure of the nozzle, connecting rod, and push rod frame in this invention.

[0026] Figure 5 This is a schematic diagram of the assembly structure of the nozzle, nozzle inner frame and sealing block in this invention.

[0027] Figure 6 This is a schematic diagram of the assembly structure of the push rack, the flip plate and the push arm in this invention.

[0028] Figure 7 This is a schematic diagram of the assembly structure of the fastening sleeve, adjusting bracket and fastening push rod in this invention.

[0029] Figure 8 This is a schematic diagram of the assembly structure of the bending rod, sliding rod, and fixed plate in this invention.

[0030] Figure 9 This is a schematic diagram of the assembly structure of the nozzle, nozzle, nozzle inner frame, and sealing block in this invention.

[0031] Figure label:

[0032] 1. Polishing rack; 2. Rotatable loading rack; 3. Angle actuator; 4. Angle support frame; 5. Limiting frame; 6. Luggage rack to be processed; 7. Adjustable rail; 8. Support rail; 9. Moving body; 10. Limiting rod; 11. Connecting frame; 12. Protective frame; 13. Swing arm; 14. Polishing actuator; 15. Support frame; 16. Polishing cloth wheel; 17. Support shaft; 18. Protective plate; 19. Dustproof fixing frame; 20. Spray head; 21. Connecting rod; 22. Push rod frame; 23. Connecting plate; 24. Groove; 25. Unloading push rod; 26. Spraying... 27. Inlet; 28. Nozzle inner frame; 29. ​​Blocking block; 30. Adjusting push rod; 31. Tilting shaft; 32. Residual gear; 33. Push rack; 34. Tilting plate; 35. Push arm; 36. Fastening sleeve; 37. Adjusting frame; 38. Fastening push rod; 39. Fixed gear sleeve; 40. Sliding gear sleeve; 41. Pushing block; 42. Pushed frame; 43. Bending rod; 44. Sliding rod; 45. Fixed plate; 46. Limiting spring; 47. Telescopic rod; 48. Limiting rail; 49. Sliding sleeve; 50. Telescopic cylinder; 51. Sliding groove; 52. Sliding rod. Detailed Implementation

[0033] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 9 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0034] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0035] This invention relates to a multi-angle grinding and polishing device for processing roof racks, comprising a polishing frame 1 and a rotatable loading rack 2 placed on one side of the polishing frame 1. The rotatable loading rack 2 consists of a base, a mounting seat rotatably connected to the base, and a motor for driving rotation. The motor for driving rotation is externally connected to a power supply and a controller. Two polishing cloth wheels 16 are provided below the polishing frame 1, and each polishing cloth wheel 16 is equipped with a protective plate 18. The protective plate 18 is an arc-shaped metal plate, and two spray heads 20 are fixedly installed on one side of each protective plate 18. The spray head 20 is a metal structure composed of a hollow cylinder at the top, a central cone in the middle, and a hollow cylinder at the bottom. The spray head 20 is externally connected to a liquid supply pipe, and the supplied liquid is polishing liquid. The same connecting rod 21 is fixedly installed between every two spray heads 20, and a push rod frame 22 is fixedly installed on one side of each connecting rod 21. Each push rod frame 22... Each of the two nozzles is equipped with a feeding push rod 25, which is connected to an external power supply and controller. Each feeding push rod 25 has a connecting plate 23 fixedly installed at its output end. The connecting plate 23 is a V-shaped plate. Each connecting plate 23 has two nozzles 26 fixedly installed on its top, which are slidably connected to different nozzles 20. The nozzles 26 have fan-shaped ports, which can help the polishing liquid to be sprayed out in a diffused state. Each nozzle 26 has a nozzle inner frame 27 fixedly installed inside. Each nozzle inner frame 27 has a sealing block 28 fixedly installed on one side, which is slidably connected to the nozzle 20. The sealing block 28 is a stainless steel metal frame composed of a large-diameter cylinder on the top and a small-diameter cylinder on the bottom. Each protective plate 18 has a groove 24 on its surface corresponding to the position of the nozzle 26. The polishing liquid in the nozzle 26 can be sprayed onto the surface of the polishing cloth wheel 16 through the groove 24.

[0036] Dustproof mounting brackets 19 are fixedly installed on one side of each of the two protective plates 18, located on both sides of the slot 24. Pushing arms 34 are slidably connected to each pair of dustproof mounting brackets 19 and fixedly installed on one side of the same connecting plate 23. Pushing racks 32 are fixedly installed at one end of each pushing arm 34. Pushing racks 32 are metal blocks with toothed grooves on both sides. Two symmetrically distributed flipping shafts 30 are rotatably installed in each slot 24. Two symmetrically distributed residual gears 31 that mesh with one of the pushing racks 32 are fixedly installed at both ends of each pair of flipping shafts 30. Two flipping plates 33 located in the same slot 24 are fixedly installed on the surface of each pair of flipping shafts 30.

[0037] In this embodiment, during the polishing process of the workpiece, polishing liquid needs to be sprayed intermittently onto the surface of the polishing cloth wheel 16. At this time, the controller can intermittently drive the feeding push rod 25 to work. First, the feeding push rod 25 retracts, driving the connecting plate 23, the push arm 34, and the push rack 32 to rise, thereby driving the two residual gears 31 meshing with the push rack 32 to rotate upward, thereby driving the two flipping plates 33 to rotate upward, so that the two flipping plates 33 gradually form an outward fan shape. At the same time, the connecting plate 23 rises, driving the spray nozzle 26 to retract into the spray head 20, thereby driving the inner frame 27 of the spray nozzle and the sealing block 28 to rise, until the bottom end of the sealing block 28 is separated from the lower cylinder of the spray head 20. At this time, the sealing block 28 can no longer block the polishing liquid, and the polishing liquid is sprayed from the spray head 20 and the spray nozzle 26, and then sprayed onto the polishing surface after the unfolded flipping plate 33 opens. More specifically, on the surface of the cloth wheel 16, the outer diameter of the nozzle 26 matches the inner diameter of the nozzle head 20. The nozzle inner frame 27 is rectangular. The sealing block 28 is fixed on the nozzle inner frame 27. Because the sealing block 28 is larger at the top and smaller at the bottom, part of the sealing block 28 is placed outside the nozzle 26 but inside the nozzle head 20, and part of it is placed inside the nozzle 26. However, the nozzle 26 has a wall thickness. When the sealing block 28 retracts, it moves upward. After moving upward, it blocks the inner cavity of the nozzle head 20, that is, the nozzle head 20 is blocked. At this time, the polishing liquid cannot be sprayed and is in a closed state. Conversely, when the material push rod 25 extends, the sealing block 28 disengages from the inner cavity of the nozzle head 20. At this time, the polishing liquid flows out from the inner cavity of the nozzle head 20 and then passes through the gap between the sealing block 28 and the nozzle head 20, then through the nozzle inner frame 27, and finally sprays out from the outlet of the nozzle 26.

[0038] After the polishing liquid is sprayed, the material feeding push rod 25 descends, causing the flip plate 33 to close and reset, thus closing and protecting the slot 24. At the same time, it moves the sealing block 28 to the hollow cylinder below the spray head 20 to seal and protect the inside of the spray head 20.

[0039] As an example, two connecting frames 11 are slidably connected inside the polishing frame 1. A protective frame 12 is fixedly installed at the bottom of each connecting frame 11. The protective frame 12 is a metal frame with an opening on one side and a hollow interior. A swing arm 13 is rotatably connected inside each protective frame 12. A polishing driver 14 is fixedly installed on one side of each swing arm 13. The polishing driver 14 is a structure consisting of an outer mounting shell and an internal polishing drive motor. The polishing drive motor is connected to an external power supply and controller. A support frame 15 is fixedly installed on one side of each polishing driver 14. A support shaft 17 sleeved inside the polishing cloth wheel 16 is rotatably connected inside each support frame 15.

[0040] An adjusting push rod 29 is provided between adjacent connecting frames 11 and swing arms 13. The adjusting push rod 29 is connected to an external power supply and controller.

[0041] Two symmetrically distributed limiting rods 10 are fixedly installed above the polishing frame 1. A movable body 9 is slidably connected above the polishing frame 1 via the two limiting rods 10. A support rail 8 is fixedly installed above the polishing frame 1. The movable body 9 rolls on the upper surface of the support rail 8.

[0042] In this embodiment, when polishing is required on the workpiece on the rotatable loading rack 2, the moving body 9 can be controlled by the controller. The moving body 9 moves laterally by the cooperation of its own drive device and the limiting rod 10. The drive device can be electric or pneumatic. For example, a geared motor drives the moving body 9's own wheels and the limiting rod 10 after being reversed by an internally set bevel gear. This drive method is existing technology and will not be described in detail here. When the moving body 9 moves, it drives the connecting frame 11, the protective frame 12, the polishing driver 14, the support frame 15, and the polishing cloth wheel 16 to move as a whole. The connecting frame 11 is driven by a cylinder or hydraulic system. The cylinder achieves vertical sliding adjustment. Since the swing arm 13 and the protective frame 12 are rotatably connected, the controller controls the adjustment push rod 29 to work, driving the polishing driver 14, the support frame 15 and the polishing cloth wheel 16 to rotate around the inner axis of the protective frame 12. This adjusts and controls the angle and height of the polishing cloth wheel 16. At the same time, it controls the polishing driver 14 to work. The polishing driver 14 is a drive motor that drives the support shaft 17 and the polishing cloth wheel 16 to rotate. By flexibly adjusting the position and height of the polishing cloth wheel 16, the two sets of polishing cloth wheels 16 cooperate with each other to achieve the polishing treatment of the workpiece on the rotatable feeding rack 2.

[0043] As an example, two sets of symmetrically distributed adjustable rails 7 are fixedly connected to the rotatable loading rack 2. An angle driver 3 is fixedly installed above each set of adjustable rails 7. Multiple luggage racks 6 to be processed are rotatably connected to one side of each angle driver 3. The angle driver 3 consists of an angle driving motor and a dustproof housing. The angle driving motor is connected to an external power supply and controller.

[0044] Four symmetrically distributed adjustment frames 36 are fixedly installed above the rotatable feeding rack 2. Each adjustment frame 36 has a fixed fastening push rod 37. The fastening push rod 37 is connected to an external power supply and controller. Each fastening push rod 37 has a fixed push block 40 at its output end. The push block 40 is an isosceles T-shaped metal block. The length of the push block 40 meets the height difference required during luggage rack processing. The two inclined surfaces of the push block 40 are machined with anti-slip grooves. Each adjustment frame 36 has two symmetrically distributed sliding sleeves 48 slidably connected inside. Each sliding sleeve 48 has a fixed bending rod 42. Each bending rod 42 has a fixed sliding rod 43 on one side. Each sliding rod 43 has a keyway limiting sliding connection to a pushed frame 41 that can contact the push block 40. The pushed frame 41 is an L-shaped metal frame with one inclined surface. The inclined surface of the pushed frame 41 is machined with anti-slip grooves. Each pushed frame 41 has a telescopic rod 46 hinged on one side.

[0045] A fastening sleeve 35 is rotatably mounted on the adjusting frame 36. The fastening sleeve 35 is a U-shaped metal frame. Two fixing toothed sleeves 38 are fixedly mounted on the surface of each fastening sleeve 35. A telescopic cylinder 49 is fixed to one end of each telescopic rod 46. A sliding toothed sleeve 39 that matches the fixing toothed sleeve 38 is rotatably connected to one side of the telescopic cylinder 49 through the sleeve, so that the telescopic cylinder 49 can drive the sliding toothed sleeve 39 to move together when it moves. The telescopic cylinder 49 on the telescopic rod 46 is slidably connected to the same fastening sleeve 35 that can support the luggage rack 6 to be processed through the keyway. The sliding toothed sleeve 39 is movably sleeved on the fastening sleeve 35. A transverse sliding groove 50 is opened on the adjusting frame 36. A sliding rod 51 that slides in the sliding groove 50 is fixed to one side of the sliding toothed sleeve 39.

[0046] The fixed toothed sleeve 38 is a metal structure composed of a cylinder and a cone, and the conical surface has a toothed groove. The sliding toothed sleeve 39 is a cylindrical metal with a conical groove machined in the middle, and the conical groove has a toothed groove machined inside.

[0047] Each bending rod 42 has a fixed plate 44 fixedly installed on its surface. Each fixed plate 44 and the adjacent pushed frame 41 are fixedly installed with a limiting spring 45, which provides an outward thrust to the pushed frame 41.

[0048] Two symmetrically distributed limiting rails 47 are fixedly installed inside each adjustment frame 36, and each sliding sleeve 48 is slidably connected to the surface of the limiting rail 47 through a keyway.

[0049] Each adjustable rail 7 is fixedly installed with an angle support frame 4. Each angle driver 3 and angle support frame 4 is rotatably connected to multiple limit frames 5 on one side. Each luggage rack to be processed 6 is snapped into one end of two corresponding limit frames 5. The two ends of the luggage rack to be processed 6 are hollow. One end of the limit frame 5 has a locking block that can be inserted into the luggage rack to be processed 6.

[0050] In this embodiment, before polishing the luggage rack 6 to be processed, the fastening push rod 37 can be controlled by the controller to drive the push block 40 forward. When the push block 40 contacts the pushed frame 41, due to the presence of the limiting spring 45 and the anti-slip groove, the push block 40 can first push the two pushed frames 41 forward. With the movement and retraction of the telescopic rod 46, the fastening sleeve 35 is rotated. When the fastening sleeve 35 rotates and abuts against the bottom of the luggage rack 6 to be processed, the force increases. The push block 40 continues to push forward, which can squeeze the two pushed frames 41 outward. The outward pushed frames 41 can drive the telescopic rod 46 and the sliding tooth sleeve 39 to follow the movement outward. When the sliding tooth sleeve 39 is engaged with the fixed tooth sleeve 38, the fastening sleeve 35 is fixed. At this time, the ends of the pushed frames 41 are placed on both sides of the push block 40, thereby achieving stable support for the luggage rack 6 to be processed.

[0051] When the luggage rack 6 to be processed needs to be polished, the fastening push rod 37 can be controlled to move backward by the controller. During the process of pushing the block 40 away from the pushed rack 41, the sliding tooth sleeve 39 is disengaged from the fixed tooth sleeve 38 by the elastic force of the limit spring 45, and the push block 40 rotates downward to reset due to gravity, which drives the pushed rack 41 to reset its front and back positions. After the fastening sleeve 35 is reset, the angle adjustment drive motor inside the angle driver 3 can be controlled by the controller to drive the multiple limit frames 5 and the luggage rack 6 to be processed to rotate. After rotation, the fastening push rod 37 is controlled to drive forward to support the luggage rack 6 to be processed.

[0052] When another batch of luggage racks 6 to be processed needs to be polished on the rotatable loading rack 2, the motor for rotation below the rotatable loading rack 2 can be controlled to work, driving the rotatable loading rack 2 to rotate 180 degrees, and the above steps can be repeated to polish the other batch of luggage racks 6 to be processed.

[0053] Working principle:

[0054] S1. When polishing the luggage rack 6 to be processed, the controller first controls the fastening push rod 37 in the adjustment frame 36 on the rotatable loading rack 2 to work, which drives the push block 40 forward. After the push block 40 contacts the pushed frame 41, it moves. With the extension and retraction of the telescopic rod 46, the fastening sleeve 35 rotates and presses against the bottom of the luggage rack 6 to be processed. Subsequently, the push block 40 continues to advance, causing the pushed frame 41 to move outward, which drives the sliding tooth sleeve 39 to mesh with the fixed tooth sleeve 38, so as to achieve stable fixation of the luggage rack 6 to be processed. At the same time, the two ends of the luggage rack 6 to be processed are locked and positioned by the limit frame 5.

[0055] S2. Next, the controller controls the moving body 9 to slide along the limit rod 10 and the support rail 8 to adjust the position of the connecting frame 11, thereby driving the protective frame 12, polishing driver 14, support frame 15 and polishing cloth wheel 16 to move. At the same time, the controller controls the adjusting push rod 29 to work, so that the polishing driver 14 drives the support frame 15 and polishing cloth wheel 16 to rotate around the inner axis of the protective frame 12, completing the adjustment of the angle and height of the polishing cloth wheel 16. Then, the polishing driver 14 is started, driving the support shaft 17 and polishing cloth wheel 16 to rotate. The two sets of polishing cloth wheels 16 cooperate to polish the luggage rack 6 to be processed on the rotatable loading rack 2.

[0056] S3. During the polishing process, when polishing fluid is intermittently replenished, the controller intermittently drives the feeding push rod 25 to retract, causing the connecting plate 23 to rise. On one hand, this causes the push arm 34 to drive the push rack 32 to rise, pushing the residual gear 31 and the tilting shaft 30 that mesh with it to rotate, thereby causing the tilting plate 33 to unfold outward in a fan shape within the slot 24. On the other hand, the connecting plate 23 causes the spray nozzle 26 to retract into the spray head 20, causing the inner frame 27 of the spray nozzle to drive the sealing block 28 to rise and disengage from the cylinder below the spray head 20, allowing the polishing fluid to be sprayed through the nozzle. After the material head 20, spray nozzle 26 and flip plate 33 are opened, they spray onto the surface of the polishing cloth wheel 16. After the replenishment is completed, the material push rod 25 descends, the flip plate 33 resets to seal the slot 24, and the sealing block 28 resets to seal the spray head 20. When it is necessary to change the surface for polishing, the control fastening push rod 37 is moved back, and the sliding tooth sleeve 39 is disengaged from the fixed tooth sleeve 38 by the elastic force of the limit spring 45. After the fastening sleeve 35 is reset, the angle driver 3 is started to drive the limit frame 5 and the luggage rack 6 to be processed to rotate and change the surface, and then the fixing and polishing steps are repeated.

[0057] S4. When a batch needs to be changed, control the motor below the rotatable loading rack 2 to rotate it 180 degrees, and repeat the above process on the luggage rack 6 that needs to be processed on another set of adjustable rails 7.

[0058] The present invention has the following technical advantages.

[0059] 1. The present invention drives the connecting plate 23 through the feeding push rod 25 to drive the spray nozzle 26, the sealing block 28 and the push rack 32 in linkage. The sealing block 28 controls the flow of polishing liquid, and the flip plate 33 seals the slot 24 when the liquid is not supplied, so as to avoid debris damaging the spray head 20 and causing injury to the operator, thereby protecting the equipment and the operator.

[0060] 2. In this invention, the fastening push rod 37 inside the adjusting frame 36 pushes the pushing block 40, which, together with the pushed frame 41 and the telescopic rod 46, drives the fastening sleeve 35 to press against the luggage rack 6 to be processed. Then, the sliding toothed sleeve 39 engages with the fixed toothed sleeve 38 to achieve stable fixation, ensuring that the workpiece does not shift during polishing. Since the rotation angle of the fastening sleeve 35 is different when the luggage rack 6 to be processed is rotated to change different surfaces, this structure fixes the fastening sleeve 35 by pressure change triggering. Therefore, there is no need to make corresponding adjustments according to the driving process of the fastening push rod 37 for different surfaces. Moreover, the reaction force of the polishing cloth wheel 16 on the luggage rack 6 to be processed is transmitted to the sliding toothed sleeve 39 instead of directly to the fastening push rod 37, thereby extending the service life of the fastening push rod 37.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-angle grinding and polishing device for processing roof racks, comprising a polishing frame (1) and a rotatable loading rack (2) placed on one side of the polishing frame (1), wherein two polishing cloth wheels (16) are provided below the polishing frame (1), characterized in that, Each polishing cloth wheel (16) is equipped with a protective plate (18). Two nozzles (20) are fixedly installed on one side of each protective plate (18). The same connecting rod (21) is fixedly installed between each two nozzles (20). A push rod frame (22) is fixedly installed on one side of each connecting rod (21). A feeding push rod (25) is provided in each push rod frame (22). A connecting plate (23) is fixedly installed at the output end of each feeding push rod (25). Two nozzles (26) are fixedly installed on the top of each connecting plate (23) and are slidably connected to different nozzles (20). A nozzle inner frame (27) is fixedly installed in each nozzle (26). A sealing block (28) is slidably connected to the nozzle (20) on one side of each nozzle inner frame (27). A slot (24) corresponding to the position of the nozzle (26) is opened on the surface of each protective plate (18).

2. The multi-angle grinding and polishing equipment for processing roof racks according to claim 1, characterized in that, Dustproof mounting brackets (19) located on both sides of the slot (24) are fixedly installed on one side of each of the two protective plates (18). Push arms (34) fixedly installed on one side of the same connecting plate (23) are slidably connected in each pair of dustproof mounting brackets (19). Push racks (32) are fixedly installed at one end of each push arm (34). Two symmetrically distributed flip shafts (30) are rotatably installed in each slot (24). Two symmetrically distributed residual gears (31) that mesh with one of the push racks (32) are fixedly installed at both ends of each pair of flip shafts (30). Two flip plates (33) located in the same slot (24) are fixedly installed on the surface of each pair of flip shafts (30).

3. The multi-angle grinding and polishing equipment for processing roof racks according to claim 1, characterized in that, The polishing frame (1) has two connecting frames (11) slidably connected inside. Each connecting frame (11) has a protective frame (12) fixedly installed at the bottom. Each protective frame (12) has a swing arm (13) rotatably connected inside. Each swing arm (13) has a polishing driver (14) fixedly installed on one side. Each polishing driver (14) has a support frame (15) fixedly installed on one side. Each support frame (15) has a support shaft (17) rotatably connected inside. The polishing cloth wheel (16) is installed on the support shaft (17).

4. The multi-angle grinding and polishing equipment for processing roof racks according to claim 3, characterized in that, An adjusting push rod (29) is provided between each of the adjacent connecting frame (11) and swing arm (13).

5. The multi-angle grinding and polishing equipment for processing roof racks according to claim 1, characterized in that, Two symmetrically distributed limiting rods (10) are fixedly installed above the polishing frame (1). A movable body (9) is slidably connected above the polishing frame (1) through the two limiting rods (10). A support rail (8) is fixedly installed above the polishing frame (1). The movable body (9) rolls on the upper surface of the support rail (8).

6. The multi-angle grinding and polishing equipment for processing roof racks according to claim 1, characterized in that, Two sets of symmetrically distributed adjustable rails (7) are fixedly connected to the rotatable loading rack (2). An angle driver (3) is fixedly installed above each set of adjustable rails (7). Multiple luggage racks (6) to be processed are rotatably connected to one side of each angle driver (3). Four symmetrically distributed adjustment frames (36) are fixedly installed above the rotatable loading rack (2). A fastening push rod (37) is fixedly installed inside each adjustment frame (36). A push block (40) is fixedly installed at the output end of each fastening push rod (37). Two symmetrically distributed sliding sleeves (48) are slidably connected inside each adjustment frame (36). A bending rod (42) is fixedly installed on each sliding sleeve (48). A sliding rod (43) is fixedly installed on one side of each bending rod (42). A pushed frame (41) that can contact the push block (40) is slidably connected to the surface of each sliding rod (43). A telescopic rod (46) is hinged on one side of each pushed frame (41).

7. The multi-angle grinding and polishing equipment for processing roof racks according to claim 6, characterized in that, The adjusting frame (36) is rotatably mounted with a fastening sleeve (35). Each fastening sleeve (35) has two fixed toothed sleeves (38) fixedly mounted on its surface. Each telescopic rod (46) has a telescopic cylinder (49) fixed at one end. A sliding toothed sleeve (39) matching the fixed toothed sleeve (38) is rotatably connected to one side of the telescopic cylinder (49) via the sleeve. The telescopic cylinder (49) is slidably connected to the same fastening sleeve (35) that can support the luggage rack (6) to be processed via a keyway. A sliding groove (50) is provided on the adjusting frame (36). A sliding rod (51) that slides in the sliding groove (50) is fixed on one side of the sliding toothed sleeve (39).

8. The multi-angle grinding and polishing equipment for processing roof racks according to claim 7, characterized in that, Each of the bending rods (42) is fixedly mounted with a fixing plate (44), and a limit spring (45) is fixedly mounted between each fixing plate (44) and the adjacent push frame (41).

9. A multi-angle grinding and polishing equipment for processing roof racks according to claim 8, characterized in that, Each of the adjustment frames (36) has two symmetrically distributed limiting rails (47) fixedly installed inside, and each of the sliding sleeves (48) is slidably connected to the surface of the limiting rails (47) through a keyway.

10. A multi-angle grinding and polishing equipment for processing roof racks according to claim 6, characterized in that, An angle support frame (4) is fixedly installed above each set of adjustable rails (7). Multiple limit frames (5) are rotatably connected to one side of each angle driver (3) and angle support frame (4). Each luggage rack (6) to be processed is snapped into one end of two corresponding limit frames (5).

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