Sand blasting device suitable for circular workpiece

Abstract

The sand blasting device comprises a sand blasting cabinet used for containing a treated workpiece, a movable groove allowing a sand blasting pipe to stretch into the cabinet body is formed in the upper end of the sand blasting cabinet, and a sand blasting pipe moving assembly capable of being connected with the sand blasting pipe to guide the sand blasting pipe to move is arranged beside the sand blasting cabinet. And a jacking rotating assembly which extends into the cabinet body and is used for bearing a treated workpiece is arranged below the sand blasting cabinet, so that the inner surface and the outer surface of the treated workpiece can be effectively treated. Through the arrangement of the sand blasting pipe movement assembly which specifically comprises the lifting assembly, the transverse moving assembly and the sand blasting pipe adjusting assembly and works cooperatively with the jacking rotating assembly, comprehensive and uniform sand blasting treatment on the inner surface and the outer surface of the circular workpiece is achieved, the treatment efficiency and consistency are remarkably improved, the low efficiency and inconsistency caused by manually holding a sand blasting gun by hand are avoided, and the working efficiency is improved. Compared with the prior art, the sand blasting device has the remarkable advantages that the sand blasting efficiency, quality and environment-friendly performance of the circular workpiece are remarkably improved.

Description

[Technical field] The invention relates to the technical field of sandblasting machines, and in particular to a sandblasting device suitable for circular workpieces. [Background technology] Thermal field components in photovoltaic equipment are key components of the thermal field system for single crystal pulling furnaces or multi-crystalline ingot furnaces. They play a vital role in the production process of photovoltaic silicon wafers. Common thermal field components include crucibles, guide tubes, insulation tubes, heating tubes, etc. These thermal field components are usually circular in shape. In the photovoltaic field, sandblasting of circular thermal field components in photovoltaic equipment is an important process step. Through sandblasting, the surface roughness of the workpiece can be increased to improve the adhesion of the coating, remove surface defects and contaminants generated during the manufacturing process, improve thermal conductivity, enhance corrosion resistance and wear resistance, and meet specific process requirements, thereby improving the performance and service life of thermal field components and ensuring the overall performance and stability of photovoltaic equipment.

[0003] Under the existing technology, the sandblasting treatment method for circular thermal field parts mostly relies on manual handheld sandblasting guns. This method is not only inefficient, but also difficult to ensure the consistency and quality of the treatment. In addition, a large amount of dust and noise will be generated during the sandblasting process in such an open environment, which will not only pollute the environment but also cause harm to the health of the operator. [Summary of the invention] The purpose of the present invention is to provide a sandblasting device suitable for circular workpieces, aiming to solve the above-mentioned problems existing in the prior art.

[0005] The present invention is achieved by the following technical solutions: A sandblasting device suitable for circular workpieces comprises a sandblasting cabinet for accommodating the workpiece to be processed, a movable slot for a sandblasting tube to extend into the cabinet is provided at the upper end of the sandblasting cabinet, a sandblasting tube moving assembly which can be connected to the sandblasting tube to guide the movement of the sandblasting tube is provided beside the sandblasting cabinet, and a lifting and rotating assembly which extends into the cabinet and is used to carry the workpiece to be processed is provided below the sandblasting cabinet, so as to effectively process the inner and outer surfaces of the workpiece to be processed.

[0006] As described above, a sandblasting device suitable for circular workpieces, the sandblasting tube movement assembly includes a mounting bracket, a lifting assembly is provided above the mounting bracket, the lifting assembly is connected to a transverse movement assembly, and the transverse movement assembly is connected to a sandblasting tube adjustment assembly connected to the sandblasting tube.

[0007] A sandblasting device suitable for circular workpieces as described above, the lifting component includes a first mounting plate connected to the mounting bracket, the first mounting plate is vertically provided with a group of first guide shafts arranged in parallel, the first guide shaft is provided with a plurality of first linear bearings that can be lifted and lowered along the first linear bearings, the plurality of first linear bearings are connected to a first guide rail connecting plate, the first guide rail connecting plate is provided with a first opening, the first guide rail connecting plate is provided with a first reducer, one end of the first reducer is connected to a first servo motor and the other end is connected to a first gear, a first rack is vertically provided between the two first guide shafts, the first gear passes through the first opening and is coupled to the first rack, the transverse movement component is also connected to the first guide rail connecting plate, when the first servo motor is running, the first gear and the first rack move relative to each other so that the transverse movement component can be lifted and lowered through the first linear bearing.

[0008] The sandblasting device suitable for circular workpieces as described above, the transverse movement assembly includes a second mounting plate connected to the first guide rail connecting plate, the second mounting plate is transversely provided with a group of second guide shafts arranged in parallel, the second guide shafts are provided with a plurality of second linear bearings that can move transversely along them, the plurality of second linear bearings are connected to the second guide rail connecting plate, the second guide rail connecting plate is provided with a second opening, the second guide rail connecting plate is provided with a second reducer, one end of the second reducer is connected to a second servo motor and the other end is connected to a second gear, a second rack is transversely provided between the two second guide shafts, the second gear passes through the second opening and is coupled to the second rack, the sandblasting tube adjustment assembly is also connected to the second guide rail connecting plate, when the second servo motor is running, the second gear and the second rack move relative to each other, so that the sandblasting tube adjustment assembly can be moved transversely through the first linear bearing.

[0009] A sandblasting device suitable for circular workpieces as described above, the sandblasting tube adjustment assembly includes a connecting piece connected to the second guide rail connecting plate, the connecting piece is connected to a fixed block, at least two parallel supporting tubes are horizontally arranged on the fixed block, a first adjusting block and a second adjusting block that can move laterally are connected between the two supporting tubes, a first guide tube that can be connected to the sandblasting tube is vertically arranged on the first adjusting block, and a second guide tube that can be connected to the sandblasting tube is vertically arranged on the second adjusting block, and the first guide tube and the second guide tube are respectively placed on the inner and outer sides of the workpiece to be processed.

[0010] As described above, a sandblasting device suitable for circular workpieces, the bottom wall of the sandblasting cabinet is provided with a connecting channel for the jacking and rotating assembly to be extended into, the bottom of the sandblasting cabinet is provided with a support for mounting the jacking and rotating assembly, a first door body is provided on one side of the sandblasting cabinet, the first door body is provided with a visual window and an operating hole for the arm to be extended into the cabinet body, a second door body is provided on the adjacent side of the first door body for convenient placement of the processed workpiece, a hydraulic load-bearing plate corresponding to the switch of the second door body is provided at the bottom of the sandblasting cabinet, and a carrying device for transporting the processed workpiece to the jacking and rotating assembly is provided on the hydraulic load-bearing plate, when one end of the hydraulic load-bearing plate abuts against the ground, the carrying device loads the processed workpiece and moves it to the hydraulic load-bearing plate, and after one end of the hydraulic load-bearing plate moves to be level with the bottom of the sandblasting cabinet, the carrying device is moved to move the processed workpiece to the jacking and rotating assembly in the cabinet body.

[0011] A sandblasting device suitable for circular workpieces as described above, the transport device includes a transport vehicle, the upper end surface of the hydraulic load-bearing plate is provided with a first guide rail for guiding the movement of the transport vehicle, the bottom of the sandblasting cabinet is provided with a second guide rail connected to the first guide rail, and a plurality of blocking cylinders corresponding to the wheels of the transport vehicle are provided along the first guide rail to prevent the transport vehicle from rolling back.

[0012] A sandblasting device suitable for circular workpieces as described above, the jacking and rotating assembly includes a mounting beam fixed to the support, a lifting motor is provided on the mounting beam, the lifting motor includes a screw rod, the screw rod passes through the connecting channel to the sandblasting cabinet, a connecting head is provided at the upper end of the screw rod, a supporting plate is connected above the connecting head, a third reducer is provided at the lower end of the supporting plate, a third servo motor is connected to one side of the third reducer, and a third gear passing through the supporting plate to the upper end of the plate is provided on the other side, a slewing bearing is provided at the upper part of the supporting plate, a rack is provided on the outer periphery of the slewing bearing to cooperate with the third gear for transmission connection, a rotating pillar which rotates synchronously with the slewing bearing is provided on the slewing bearing, a support frame which can carry the processed workpiece is installed on the rotating pillar, and when the third servo motor is running, the third gear causes the slewing bearing to rotate synchronously and finally causes the support frame to rotate.

[0013] As described above, a sandblasting device suitable for circular workpieces is provided on the bearing surface of the carrier, and a first opening matching the shape of the support frame is provided. The first opening is connected to a second opening extending to the edge of the bearing surface of the carrier, and the second opening is semi-closed to facilitate the passage of the screw rod. When the carrier is loaded with the workpiece to be processed and moved to the vertical corresponding position between the second opening and the support frame, the support frame lifts the workpiece to be processed to separate it from the carrier, and then the carrier is moved out of the sandblasting cabinet.

[0014] A sandblasting device suitable for circular workpieces as described above, wherein a sand discharge valve for collecting waste sand is provided at the bottom of the sandblasting cabinet, and the sand discharge valve is connected to a corresponding sand storage tank through an external pipeline to collect waste sand, a dust extraction pipe is connected to one side of the sandblasting cabinet, and a dust suction cabinet connected to the dust extraction pipe through an external pipeline is provided next to the sandblasting cabinet, which is used to collect waste dust generated inside the sandblasting cabinet when the sandblasting cabinet is in operation.

[0015] Compared with the prior art, the present invention has the following advantages: 1. By setting up the sandblasting tube motion assembly, including the lifting assembly, the lateral movement assembly, the sandblasting tube adjustment assembly, and the coordinated work with the jacking and rotating assembly, the inner and outer surfaces of the circular workpiece can be sandblasted comprehensively and evenly, which significantly improves the processing efficiency and consistency and avoids the inefficiency and inconsistency of manual handheld sandblasting guns.

[0016] 2. Through the precise control of the servo motor and reducer of the lifting assembly and the lateral movement assembly, as well as the sandblasting tube adjustment assembly, the spraying angle and distance of the sandblasting tube to the workpiece being processed can be adjusted, ensuring the accuracy of the sandblasting treatment. It can be adjusted according to the specific shape and size of the workpiece to achieve the best sandblasting effect.

[0017] 3. The lifting and rotating assembly realizes the lifting and rotation of the workpiece through the lifting motor and the slewing bearing, so that the sandblasting tube can more easily reach various surfaces of the workpiece, especially the inner surface, improving the comprehensiveness and uniformity of the sandblasting process.

[0018] 4. The design of the sandblasting cabinet, including the movable slot, the visual window and operating hole on the first door, the second door, the hydraulic load-bearing plate and the carrier, provides a relatively closed working environment, reduces the spread of dust and noise during the sandblasting process, and protects the environment and the health of operators. At the same time, the setting of the sand discharge valve and the dust collection cabinet effectively collects waste sand and waste dust, further improving the environmental protection performance.

[0019] 5. The design of the carrier includes a carrier, a first guide rail, a second guide rail and a blocking cylinder, and a first opening and a second opening on the carrier that match the support frame. The loading and unloading process of the workpiece is simplified, the work efficiency is improved, and the stability and safety of the workpiece during the loading and unloading process are ensured.

[0020] To summarize, this application significantly improves the efficiency, quality and environmental protection performance of sandblasting of circular workpieces through structural improvement designs in terms of automation, precise control, workpiece bearing and rotation, safety and environmental protection, and convenience of workpiece loading and unloading, and has significant advantages over the existing technology.

Brief Description of the Drawings

[0022] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the present invention Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure of an embodiment of the present invention Figure 2 ; Figure 3 A schematic diagram of using a carrier to transfer a workpiece to be processed according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the lifting and rotating assembly carrying the workpiece to be processed in an embodiment of the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the sandblasting cabinet in the embodiment of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the sandblasting tube motion assembly in an embodiment of the present invention; Figure 7 It is a schematic diagram of the exploded structure of the lifting assembly in an embodiment of the present invention; Figure 8 It is a schematic diagram of the exploded structure of the transverse movement assembly and the sandblasting tube adjustment assembly in the embodiment of the present invention; Fig. 9 The three-dimensional structure of the lifting and rotating assembly in the embodiment of the present invention is shown in FIG. Figure 1 ; Fig.10 The three-dimensional structure of the lifting and rotating assembly in the embodiment of the present invention is shown in FIG. Figure 2 ; Fig.11 The three-dimensional structure of the lifting and rotating assembly in the embodiment of the present invention is shown in FIG. Figure 3 ; Fig.12 The three-dimensional structure of the lifting and rotating assembly in the embodiment of the present invention is shown in FIG. Figure 4 ; Fig.13 It is a schematic diagram of the three-dimensional structure of the carrier device in an embodiment of the present invention. [Specific implementation method] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] See also Figures 1 to 13The present embodiment provides a sandblasting device suitable for circular workpieces, including a sandblasting cabinet 1 for accommodating the workpiece to be processed, wherein the upper end of the sandblasting cabinet 1 is provided with a movable groove 11 for a sandblasting tube to extend into the cabinet, wherein the sandblasting tube here can be a sandblasting tube of an external sandblasting machine, and the sandblasting cabinet 1 is provided with a sandblasting tube moving component 2 which can be connected to the sandblasting tube to guide its movement, and the lower part of the sandblasting cabinet 1 is provided with a lifting and rotating component 3 which extends into the cabinet and is used to carry the workpiece to be processed, so as to effectively process the inner and outer surfaces of the workpiece to be processed.

[0025] In this embodiment, the sandblasting cabinet 1 is used to accommodate the circular workpiece to be processed, and the movable groove 11 opened at the upper end allows the sandblasting tube to extend into the cabinet, so as to perform sandblasting on the workpiece. The sandblasting tube motion assembly 2 is located next to the sandblasting cabinet 1, and can be connected to the external sandblasting tube and extend into the cabinet, and guide the spraying direction of the sandblasting tube in the cabinet to ensure uniform treatment of the surface of the workpiece. The lifting and rotating assembly 3 is located below the sandblasting cabinet 1, and a part of it extends into the cabinet to carry the circular workpiece to be processed. The lifting and rotating assembly 3 can not only adjust the height of the workpiece, but also rotate the workpiece, so as to achieve comprehensive sandblasting treatment of the inner and outer surfaces of the workpiece.

[0026] Due to the coordinated work of the sandblasting tube motion component 2 and the lifting and rotating component 3, the sandblasting tube can perform comprehensive and uniform sandblasting treatment on the inner and outer surfaces of the workpiece, avoiding the problem of processing dead angles that may exist in traditional sandblasting devices.

[0027] The guiding function of the sandblasting tube motion component 2 makes the movement of the sandblasting tube more precise and efficient, reducing the difficulty and time cost of manual operation. At the same time, the automatic adjustment and rotation function of the lifting and rotating component 3 also improves the efficiency of the sandblasting process.

[0028] Furthermore, as a preferred embodiment of the present invention but not a limitation, the sandblasting tube motion assembly 2 includes a mounting bracket 21, a lifting assembly 22 is provided above the mounting bracket 21, the lifting assembly 22 is connected to a transverse movement assembly 23, and the transverse movement assembly 23 is connected to a sandblasting tube adjustment assembly 24 connected to the sandblasting tube.

[0029] In this embodiment, the mounting bracket 21 is the basic structure of the sandblasting tube movement component 2, which is arranged next to the sandblasting cabinet 1 to provide support and installation platform for other components. The lifting component 22 is installed above the mounting bracket 21 and is mainly responsible for the movement of the sandblasting tube in the vertical direction. The lifting component 22 can be realized by motor drive, hydraulic drive or pneumatic drive, and the specific selection depends on the application scenario and performance requirements of the sandblasting device. Through the precise control of the lifting component 22, the height of the sandblasting tube can be adjusted to adapt to circular workpieces of different sizes and shapes. The lateral movement component 23 is connected to the lifting component 22 and is responsible for the movement of the sandblasting tube in the horizontal direction. The lateral movement component 23 can also be realized by motor drive, hydraulic drive or pneumatic drive. Through the movement of the lateral movement component 23, it can be ensured that the sandblasting tube can cover all parts of the workpiece to achieve all-round sandblasting. The sandblasting tube adjustment component 24 is connected to the lateral movement component 23 and is directly connected to the sandblasting tube. The main function of the sandblasting tube adjustment assembly 24 is to adjust the spraying angle and spraying distance of the sandblasting tube relative to the workpiece to ensure that the sandblasting process can be carried out evenly and effectively. The sandblasting tube adjustment assembly 24 can be achieved by manual adjustment or automatic adjustment, depending on the design and use requirements of the sandblasting device.

[0030] By adjusting the lifting assembly 22, the lateral movement assembly 23 and the sandblasting tube adjustment assembly 24, circular workpieces of different sizes, shapes and materials can be easily adapted, thereby improving the versatility of the sandblasting device and enabling the sandblasting process to be performed more evenly and effectively, thereby improving the processing efficiency and quality.

[0031] Further, as a preferred embodiment of the present invention but not a limitation, the lifting assembly 22 includes a first mounting plate 221 connected to the mounting bracket 21, the first mounting plate 221 is vertically provided with a group of first guide shafts 222 arranged in parallel, the first guide shafts 222 are provided with a plurality of first linear bearings 223 that can be lifted and lowered along them, the plurality of first linear bearings 223 are connected to a first guide rail connecting plate 224, the first guide rail connecting plate 224 is provided with a first opening 225, the first guide rail connecting plate 224 is provided with a first reducer 226, and the One end of the first reducer 226 is connected to the first servo motor 227 and the other end is connected to the first gear 228. A first rack 229 is vertically arranged between the two first guide shafts 222. The first gear 228 passes through the first opening 225 and is coupled to the first rack 229. The transverse movement assembly 23 is also connected to the first guide rail connecting plate 224. When the first servo motor 227 is running, the first gear 228 and the first rack 229 move relative to each other, so that the transverse movement assembly 23 can be raised and lowered through the first linear bearing 223.

[0032] In this embodiment, when the vertical position of the sandblasting tube needs to be adjusted, the first servo motor 227 is started, and the first gear 228 is driven to rotate through the deceleration effect of the first reducer 226. The first gear 228 is coupled to the first rack 229, so it will rise or fall relative to the first rack 229 under the action of the first linear bearing 223. Since the first linear bearing 223 is connected to the first guide rail connecting plate 224, it will drive the first guide rail connecting plate 224 and the lateral movement assembly 23 and the sandblasting tube installed thereon to move up and down. By accurately controlling the speed and direction of the first servo motor 227, accurate control of the sandblasting tube in the vertical direction can be achieved.

[0033] Further, as a preferred embodiment of the present invention but not a limitation, the transverse movement assembly 23 includes a second mounting plate 231 connected to the first guide rail connecting plate 224, the second mounting plate 231 is transversely provided with a group of second guide shafts 232 arranged in parallel, the second guide shafts 232 are provided with a plurality of second linear bearings 233 that can move laterally along them, the plurality of second linear bearings 233 are connected to a second guide rail connecting plate 234, the second guide rail connecting plate 234 is provided with a second opening 235, the second guide rail connecting plate 234 is provided with a second reducer 236, the second guide rail connecting plate 234 is provided with a second reducer 236, the second guide rail connecting plate 234 is provided with a second opening 235 ... opening 235, the second guide rail connecting plate 234 is provided with a second reducer 236, the second guide rail connecting plate 234 is provided with a second opening 235, the second guide rail connecting plate 234 is provided with a second opening 235, the second guide rail connecting plate 234 is provided with a second opening 235, the second guide rail connecting plate 234 is provided with a second reducer 236, the second guide rail connecting plate 234 is provided with a second opening 235, the second guide rail connecting plate 234 is provided with a second opening One end of the second reducer 236 is connected to the second servo motor 237 and the other end is connected to the second gear 238. A second rack 239 is horizontally arranged between the two second guide shafts 232. The second gear 238 passes through the second opening 235 and is coupled to the second rack 239. The sandblasting tube adjustment assembly 24 is also connected to the second guide rail connecting plate 234. When the second servo motor 237 is running, the second gear 238 and the second rack 239 move relative to each other, so that the sandblasting tube adjustment assembly 24 can move laterally through the first linear bearing 223.

[0034] In this embodiment, when the lateral position of the sandblasting tube needs to be adjusted, the second servo motor 237 is started, and the second gear 238 is driven to rotate through the second reducer 236. Since the second gear 238 is coupled to the second rack 239, and the second guide rail connecting plate 234 is fixed to the second linear bearing 233, the rotation of the second gear 238 drives the second guide rail connecting plate 234 and the sandblasting tube adjustment assembly 24 to move laterally on the second guide shaft 232. By controlling the speed and direction of the second servo motor 237, the moving position and speed of the sandblasting tube can be accurately controlled.

[0035] Furthermore, as a preferred embodiment of the present invention but not a limitation, the sandblasting tube adjustment assembly 24 includes a connector 241 connected to the second guide rail connecting plate 234, the connector 241 is connected to a fixed block 242, at least two parallel support tubes 243 are horizontally arranged on the fixed block 242, and a first adjustment block 244 and a second adjustment block 245 that can move laterally are connected between the two support tubes 243, a first guide tube 246 that can be connected to the sandblasting tube is vertically arranged on the first adjustment block 244, and a second guide tube 247 that can be connected to the sandblasting tube is vertically arranged on the second adjustment block 245, and the first guide tube 246 and the second guide tube 247 are respectively placed on the inner and outer sides of the workpiece to be processed after passing through the movable groove 11.

[0036] In this embodiment, the connector 241 is a connecting part between the sandblasting tube adjustment assembly 24 and the second guide rail connecting plate 234. It ensures that the sandblasting tube adjustment assembly 24 can be firmly mounted on the traverse assembly 23 and move with the traverse assembly 23. The fixed block 242 cooperates with the connector 241 to provide stable support for the sandblasting tube adjustment assembly 24. At least two parallel support pipes 243 are transversely arranged on the fixed block 242. The main function of the support pipe 243 is to support and guide the movement of the first adjustment block 244 and the second adjustment block 245, and ensure the stability and accuracy of their movement. The first adjustment block 244 and the second adjustment block 245 that can move transversely are connected between the support pipes 243. The first adjustment block 244 and the second adjustment block 245 can move independently on the support pipe 243, so as to adjust the distance between the first guide pipe 246 and the second guide pipe 247 relative to the inner and outer surfaces of the workpiece to be processed, so as to achieve accurate control of the sandblasting range and angle of the sandblasting tube on the workpiece.

[0037] Optionally, in some embodiments, the first guide tube 246 and the second guide tube 247 can be directly connected to the sandblasting tube by means of threads, snaps or other quick connection devices, ensuring that the sandblasting tube can be firmly fixed on the guide tube and move and adjust the angle together with the guide tube.

[0038] Optionally, in some embodiments, the first guide tube 246 and the second guide tube 247 can be connected to the sandblasting tube via an intermediate connector such as a joint, a converter, etc. This can provide more flexibility, adjust the position and angle of the sandblasting tube as needed, and ensure the stability and reliability of the connection.

[0039] Further, as a preferred embodiment of the present scheme but not a limitation, the bottom wall of the sandblasting cabinet 1 is provided with a connecting passage 12 for the jacking and rotating assembly 3 to extend into, the bottom of the sandblasting cabinet 1 is provided with a support 13 for installing the jacking and rotating assembly 3, a first door body 14 is provided on one side of the sandblasting cabinet 1, the first door body 14 is provided with a visual window and an operating hole for the arm to extend into the cabinet, a second door body 15 is provided on the adjacent side of the first door body 14 for conveniently taking and placing the processed workpiece, a hydraulic load-bearing plate 16 corresponding to the switch of the second door body 15 is provided at the bottom of the sandblasting cabinet 1, a carrier 17 for transporting the processed workpiece to the jacking and rotating assembly 3 is provided on the hydraulic load-bearing plate 16, when one end of the hydraulic load-bearing plate 16 abuts against the ground, the carrier 17 loads the processed workpiece and moves it onto the hydraulic load-bearing plate 16, after one end of the hydraulic load-bearing plate 16 moves to be level with the bottom of the sandblasting cabinet 1, the carrier 17 is moved to move the processed workpiece to the jacking and rotating assembly 3 in the cabinet.

[0040] In this embodiment, the bottom wall of the sandblasting cabinet 1 is provided with a connecting passage 12 for the lifting and rotating assembly 3 to extend into. This is to facilitate the arrangement of the components of the lifting and rotating assembly 3 for carrying the workpiece to be processed, save space in the cabinet, and provide power and support for the lifting and rotation of the workpiece. A support 13 for installing the lifting and rotating assembly 3 is provided at the bottom of the sandblasting cabinet 1. The support 13 provides a stable installation foundation for the lifting and rotating assembly 3 to ensure that it can firmly support and rotate the workpiece. A first door body 14 is provided on one side of the sandblasting cabinet 1. A visual window is provided on the first door body 14 to facilitate the operator to observe the sandblasting process; at the same time, an operating hole is provided for the arm to extend into the cabinet to facilitate necessary manual operation or adjustment. A second door body 15 is provided on the adjacent side of the first door body 14 to facilitate the placement of the workpiece to be processed. The design of the second door body 15 takes into account the convenient placement of the workpiece, and its opening and closing operations should be simple and flexible. A hydraulic load-bearing plate 16 corresponding to the opening of the second door body 15 is provided at the bottom of the sandblasting cabinet 1. The hydraulic bearing plate 16 has load-bearing and lifting functions, and its height can be adjusted as needed, so as to cooperate with the carrier 17 to smoothly move the workpiece into or out of the sandblasting cabinet 1. It should be noted that the specific structure of the hydraulic bearing plate 16 can refer to the prior art such as the patents CN106627310A, CN201989682U, CN214240556U, etc., which should be understood by those skilled in the art.

[0041] A carrier 17 for transporting the workpiece to be processed to the lifting and rotating assembly 3 is provided on the hydraulic bearing plate 16. The carrier 17 can be manual or electric, which is convenient for loading, moving and positioning the workpiece.

[0042] When the workpiece needs to be processed, the workpiece is first loaded and moved to the hydraulic bearing plate 16 through the carrier 17. At this time, one end of the hydraulic bearing plate 16 is in contact with the ground, which is convenient for loading the workpiece. Then, the hydraulic bearing plate 16 is raised, and one end of it moves to be level with the bottom of the sandblasting cabinet 1. Next, the carrier 17 is moved to move the workpiece to be processed to the lifting and rotating assembly 3 in the cabinet. Subsequently, the second door body 15 and the first door body 14 are closed, and the sandblasting device is started for sandblasting. After the processing is completed, the doors are opened in the reverse order to remove the workpiece.

[0043] Furthermore, as a preferred embodiment of the present scheme but not a limitation, the transport device 17 includes a transport vehicle 171, the upper end surface of the hydraulic load-bearing plate 16 is provided with a first guide rail 172 for guiding the movement of the transport vehicle 171, the bottom of the sandblasting cabinet 1 is provided with a second guide rail 173 connected to the first guide rail 172, and a plurality of blocking cylinders 4 corresponding to the wheels of the transport vehicle 171 are provided along the first guide rail 172 to prevent the transport vehicle 171 from rolling back.

[0044] In this embodiment, the carrier 17 includes a carrier 171. The carrier 171 is used to load and transport the processed circular workpieces. In order to ensure the stable movement of the carrier 171, the upper end surface of the hydraulic bearing plate 16 is provided with a first guide rail 172 that guides the movement of the carrier 171, which is adapted to the wheels. The first guide rail 172 provides a stable driving path for the carrier 171, ensuring that it can move along a predetermined trajectory. A second guide rail 173 connected to the first guide rail 172 is also provided at the bottom of the sandblasting cabinet 1. When the carrier 171 moves from the hydraulic bearing plate 16 to the inside of the sandblasting cabinet 1, the second guide rail 173 continues to provide guidance for the carrier 171, ensuring that it can smoothly enter the cabinet and be positioned on the jacking and rotating assembly 3. In addition, a plurality of blocking cylinders 4 corresponding to the wheels of the carrier 171 are provided along the first guide rail 172. The function of the blocking cylinder 4 is to provide resistance when the carrier 171 stops on the hydraulic bearing plate 16 and does not move, so as to prevent the carrier 171 from rolling back due to external force or its own weight. This increases the safety and stability during the transportation process.

[0045] Further, as a preferred embodiment of the present invention but not a limitation, the lifting and rotating assembly 3 includes a mounting beam 31 fixed to the support 13, a lifting motor 32 is provided on the mounting beam 31, and the lifting motor 32 includes a screw rod 33, the screw rod 33 passes through the connecting channel 12 to the sandblasting cabinet 1, and a lifting origin induction block 50 is also provided at the lower end of the screw rod 33, and a lifting sensor bracket 51 is provided at the lower part of the mounting beam 31, and a first proximity switch 52 and a second proximity switch 53 are respectively provided at the upper and lower ends of the lifting sensor bracket 51, and the first proximity switch 52 and the second proximity switch 53 cooperate with the lifting origin induction block 50 to limit the screw rod 33, and a connecting head 34 is provided at the upper end of the screw rod 33. A supporting plate 35 is connected above the connecting head 34, and a third reducer 36 is provided at the lower end of the supporting plate 35. A third servo motor 37 is connected to one side of the third reducer 36, and a third gear 38 is provided on the other side that passes through the supporting plate 35 to the upper end of the plate. A slewing bearing 39 is provided on the upper part of the supporting plate 35, and a rack is provided on the outer periphery of the slewing bearing 39 to cooperate with the third gear 38 for transmission connection. A rotating pillar 310 that rotates synchronously with the slewing bearing 39 is provided, and a support frame 311 that can carry the workpiece to be processed is installed on the rotating pillar 310. When the third servo motor 37 is running, the third gear 38 causes the slewing bearing 39 to rotate synchronously and finally causes the support frame 311 to rotate.

[0046] In this embodiment, the lifting and rotating assembly 3 includes a mounting beam 31 fixed to the support 13. Specifically, two angle steels can be selected as the main beams of the mounting beam, and two connecting steel plates that can be assembled with the lifting and rotating assembly 3 through fasteners are provided between the two angle steels. The mounting beam 31 provides a stable installation foundation for the entire lifting and rotating assembly 3, ensuring that it can stably support and rotate the workpiece. A lifting motor 32 is provided on the mounting beam 31. The lifting motor 32 is the core power component of the lifting and rotating assembly 3, responsible for driving the screw 33 to perform lifting and lowering movements. The lifting motor 32 includes a screw 33, which passes through the connecting channel 12 to the sandblasting cabinet 1. The screw 33 is a transmission component for lifting and lowering movements, and the lifting and lowering of the support plate 35 and the components thereon are realized by cooperating with the lifting motor 32. A connector 34 is provided at the upper end of the screw 33. The connector 34 is used to connect the screw 33 and the support plate 35 to ensure the stable transmission of the lifting and lowering movements. In addition, a lifting origin induction block 50 is provided at the lower end of the lead screw 33, and a lifting sensor bracket 51 is provided at the lower part of the mounting beam 31. The upper and lower ends of the lifting sensor bracket 51 are provided with a first proximity switch 52 and a second proximity switch 53, respectively. The first proximity switch 52 and the second proximity switch 53 cooperate with the lifting origin induction block 50 to limit the lead screw 33 to be lifted and lowered only within a certain range. The third servo motor 37 is the power source of the rotational motion, and drives the slewing bearing 39 to rotate through the deceleration and torque increase of the third reducer 36.

[0047] Specifically, when in use, the circular workpiece is first loaded and transported to the lifting and rotating assembly 3 in the sandblasting cabinet 1 through the carrier 17, more specifically, placed on the support frame 311. Then, the lifting motor 32 is started, and the support plate 35 and the workpiece thereon are lifted to the required height through the transmission of the screw rod 33 and the connector 34. Next, the third servo motor 37 is started, and the third gear 38 is driven to rotate through the deceleration and torque increase of the third reducer 36. The third gear 38 cooperates with the rack on the outer periphery of the slewing support 39 to start the slewing support 39 to rotate. The rotation of the slewing support 39 is transmitted to the support frame 311 through the rotating support 310, and finally the stable rotation of the workpiece is achieved. During the sandblasting process, the rotation speed and direction of the workpiece can be adjusted as needed to obtain the best sandblasting effect.

[0048] Furthermore, a dust cover 312 is provided on the rotating support 310, and the dust cover 312 is located between the support frame 311 and the slewing bearing 39, covering the main components to prevent the waste sand and dust generated during the sandblasting process from damaging the mechanical structure. In addition, for the same consideration, the screw rod 33 is also provided with a dust sleeve 331.

[0049] Furthermore, as a preferred embodiment of the present scheme but not a limitation, a first opening 174 matching the shape of the support frame 311 is provided on the bearing surface of the carrier 171, and the first opening 174 is connected to a second opening 175 extending to the edge of the bearing surface of the carrier 171, and the second opening 175 is semi-closed to facilitate the passage of the screw rod 33. When the carrier 171 is loaded with the workpiece to be processed and moved to the vertical corresponding position between the first opening 174 and the support frame 311, the support frame 311 lifts the workpiece to be processed to separate it from the carrier 171, and then moves the carrier 171 out of the sandblasting cabinet 1.

[0050] In this embodiment, a first opening 174 matching the shape of the support frame 311 is specially provided on the bearing surface of the carrier 171. This first opening 174 not only matches the shape of the support frame 311, but also connects to the edge of the bearing surface of the carrier 171 through a second opening 175. Specifically, in this embodiment, the support frame 311 is a cross shape, and the first opening 175 is a corresponding cross shape slightly larger than the cross section of the support frame 311. It can be foreseen that in some other embodiments, the support frame 311 can also be a cross shape, a circle, etc. This embodiment is only used as an example. The second opening 175 is designed as a semi-enclosed structure, which allows the screw rod 33 to pass through the edge of the vehicle body so that the support frame 311 corresponds to the first opening 174.

[0051] Specifically, when in use, first, place the circular workpiece to be processed on the bearing surface of the carrier 171, and ensure that the workpiece is located above the first opening 174. At this time, the carrier 171 is outside or near the entrance of the sandblasting cabinet 1. Move the carrier 171 and move it into the sandblasting cabinet 1 together with the workpiece until the first opening 174 and the support frame 311 are in a vertically corresponding position. In this process, the precise movement of the carrier 171 can be achieved by the guide rails mentioned above, or by adding auxiliary equipment such as sensors. When the carrier 171 is correctly positioned, start the screw rod 33 to drive, and the support frame 311 gradually rises, passes through the first opening 174 and the second opening 175, until its top contacts the bottom of the workpiece and lifts it up. As the support frame 311 continues to rise, the workpiece is completely lifted off the bearing surface of the carrier 171, and the workpiece is separated from the carrier 171. After the workpiece is stably supported, due to the second opening 175, the carrier 171 can be separated from the screw rod 33 and finally moved out of the sandblasting cabinet 1 to leave space for subsequent sandblasting operations. At this time, the workpiece is fully supported by the support frame 311 and is ready to be sandblasted.

[0052] Furthermore, the rotating pillar 310 is also provided with a rotating origin baffle 312 that rotates synchronously therewith, and the side end of the supporting plate 35 is provided with a third proximity switch 351 that cooperates with the rotating origin baffle 312. When the rotating origin baffle 312 rotates to directly above the third proximity switch 351, it is the initial position of the support frame 311. At this initial position, the support frame 311 vertically corresponds to the first opening 174, and the support frame 311 can pass through the first opening 174 to be lifted upward.

[0053] Furthermore, a sand discharge valve 18 for collecting waste sand is provided at the bottom of the sandblasting cabinet 1, and the sand discharge valve 18 is connected to a corresponding sand storage tank through an external pipe to collect waste sand. A dust extraction pipe 19 is connected to one side of the sandblasting cabinet 1, and a dust collection cabinet 20 connected to the dust extraction pipe 19 through an external pipe is provided next to the sandblasting cabinet 1, which is used to collect waste dust generated inside the sandblasting cabinet 1 when it is in operation.

[0054] In this embodiment, in order to effectively collect and process the waste sand generated during the sandblasting process, a sand discharge valve 18 is specially provided at the bottom of the sandblasting cabinet 1. The sand discharge valve 18 guides the waste sand deposited at the bottom of the sandblasting cabinet into a special sand storage tank through an external pipeline, thereby avoiding the accumulation of waste sand in the sandblasting cabinet, reducing the frequency and difficulty of manual cleaning, and also realizing the centralized management and reuse of waste sand.

[0055] In order to solve the problem of waste dust generated during sandblasting, a dust extraction pipe 19 is installed on one side of the sandblasting cabinet 1 in this embodiment. The dust extraction pipe 19 is connected to the dust collection cabinet 20 through an external pipeline to form a complete waste dust collection system. When the dust extraction pipe 19 absorbs the waste dust, the waste dust will be directly sent to the dust collection cabinet 20. The dust collection cabinet is designed with an efficient filtering and collection device to ensure that the waste dust is effectively captured and stored, which is convenient for subsequent centralized processing and discharge.

[0056] Working principle of the present invention: The sandblasting device provided in the present application is suitable for circular workpieces and includes a sandblasting cabinet. The sandblasting cabinet is used to accommodate the circular workpieces to be processed, and a movable groove at the upper end of the sandblasting cabinet allows an external sandblasting tube to extend into the cabinet for sandblasting.

[0057] In the present application, the sandblasting tube motion assembly is composed of a mounting bracket, a lifting assembly, a lateral movement assembly, and a sandblasting tube adjustment assembly. The lifting assembly drives the relative movement of the first gear and the first rack through the first servo motor to achieve precise lifting and lowering of the sandblasting tube in the vertical direction. The lateral movement assembly drives the relative movement of the second gear and the second rack through the second servo motor to achieve the movement of the sandblasting tube in the horizontal direction. The sandblasting tube adjustment assembly is responsible for adjusting the spraying angle and distance of the sandblasting tube relative to the workpiece to ensure the uniformity and effectiveness of the sandblasting process.

[0058] In this application, the lifting and rotating assembly is located below the sandblasting cabinet, and the lifting of the workpiece is achieved by driving the screw rod through the lifting motor. At the same time, the third servo motor drives the third gear through the third reducer to cooperate with the rack on the outer periphery of the slewing bearing to rotate the workpiece on the horizontal plane. This combination of lifting and rotating enables the sandblasting tube to comprehensively and evenly process the inner and outer surfaces of the workpiece.

[0059] In the present application, the workpiece is loaded and transported into the sandblasting cabinet by a carrier. The first opening on the carrier matches the shape of the support frame of the lifting and rotating assembly, so that the workpiece can be smoothly lifted by the support frame and separated from the carrier. After the processing is completed, the workpiece is unloaded in the same way.

[0060] In this application, a sand discharge valve is provided at the bottom of the sandblasting cabinet to collect and process waste sand. At the same time, a dust extraction pipe on one side of the sandblasting cabinet is connected to the dust collection cabinet to form a waste dust collection system to ensure the cleanliness of the sandblasting operation environment.

[0061] In summary, this embodiment realizes comprehensive and uniform automatic sandblasting of the inner and outer surfaces of a circular workpiece through the coordinated work of the sandblasting tube motion assembly and the jacking and rotating assembly. At the same time, the efficiency and environmental friendliness of the sandblasting operation are improved through the automated design of the workpiece loading and unloading system and the effective treatment of waste sand and waste dust.

[0062] The above are implementation methods provided in combination with specific contents, and it is not intended that the specific implementation of this application is limited to these descriptions. Any method structure similar to the present application, or a number of technical deductions or replacements based on the concept of the present application, should be considered as the protection scope of this application.

Claims

1. A sandblasting device suitable for circular workpieces, characterized in that: The invention comprises a sandblasting cabinet (1) for accommodating a workpiece to be processed, wherein a movable groove (11) is provided at the upper end of the sandblasting cabinet (1) for a sandblasting tube to extend into the cabinet, a sandblasting tube moving assembly (2) which can be connected to the sandblasting tube to guide the movement of the sandblasting tube is provided beside the sandblasting cabinet (1), and a lifting and rotating assembly (3) which extends into the cabinet and is used to carry the workpiece to be processed is provided below the sandblasting cabinet (1), so as to effectively process the inner and outer surfaces of the workpiece to be processed.

2. A sandblasting device suitable for circular workpieces according to claim 1, characterized in that: The sandblasting tube movement assembly (2) comprises a mounting bracket (21), a lifting assembly (22) is provided above the mounting bracket (21), the lifting assembly (22) is connected to a lateral movement assembly (23), and the lateral movement assembly (23) is connected to a sandblasting tube adjustment assembly (24) connected to the sandblasting tube.

3. A sandblasting device suitable for circular workpieces according to claim 2, characterized in that: The lifting assembly (22) comprises a first mounting plate (221) connected to the mounting bracket (21); the first mounting plate (221) is vertically provided with a group of first guide shafts (222) arranged in parallel; the first guide shafts (222) are provided with a plurality of first linear bearings (223) capable of lifting and lowering along the first linear bearings (223); the plurality of first linear bearings (223) are connected to a first guide rail connecting plate (224); the first guide rail connecting plate (224) is provided with a first opening (225); the first guide rail connecting plate (224) is provided with a first reducer (226); one end of the first reducer (226) is provided with a first opening (225); A first servo motor (227) is connected to one end and a first gear (228) is connected to the other end. A first rack (229) is vertically arranged between the two first guide shafts (222). The first gear (228) passes through the first opening (225) and is coupled to the first rack (229). The transverse movement assembly (23) is also connected to the first guide rail connecting plate (224). When the first servo motor (227) is running, the first gear (228) and the first rack (229) move relative to each other, so that the transverse movement assembly (23) can be raised and lowered through the first linear bearing (223).

4. A sandblasting device suitable for circular workpieces according to claim 3, characterized in that: The transverse movement assembly (23) comprises a second mounting plate (231) connected to the first guide rail connecting plate (224); the second mounting plate (231) is transversely provided with a group of second guide shafts (232) arranged in parallel; the second guide shafts (232) are provided with a plurality of second linear bearings (233) capable of transverse movement along the second linear bearings (233); the plurality of second linear bearings (233) are connected to a second guide rail connecting plate (234); the second guide rail connecting plate (234) is provided with a second opening (235); the second guide rail connecting plate (234) is provided with a second reducer (236); one end of the second reducer (236) is connected to There is a second servo motor (237) and the other end of the second servo motor (237) is connected to a second gear (238), a second rack (239) is arranged horizontally between the two second guide shafts (232), the second gear (238) passes through the second opening (235) and is coupled to the second rack (239), and the sandblasting tube adjustment assembly (24) is also connected to the second guide rail connecting plate (234). When the second servo motor (237) is running, the second gear (238) and the second rack (239) move relative to each other, so that the sandblasting tube adjustment assembly (24) can be moved laterally through the first linear bearing (223).

5. A sandblasting device suitable for circular workpieces according to claim 4, characterized in that: The sandblasting tube adjustment assembly (24) comprises a connecting piece (241) connected to the second guide rail connecting plate (234), the connecting piece (241) being connected to a fixed block (242), the fixed block (242) being laterally provided with at least two parallel supporting tubes (243), a first adjusting block (244) and a second adjusting block (245) being laterally movable being connected between the two supporting tubes (243), a first guiding tube (246) being vertically provided on the first adjusting block (244) and being connectable to the sandblasting tube, a second guiding tube (247) being vertically provided on the second adjusting block (245) and being connectable to the sandblasting tube, the first guiding tube (246) and the second guiding tube (247) being respectively disposed on the inner and outer sides of a workpiece to be processed.

6. A sandblasting device suitable for circular workpieces according to any one of claims 1 to 5, characterized in that: The bottom wall of the sandblasting cabinet (1) is provided with a connecting passage (12) into which the lifting and rotating assembly (3) can be inserted; the bottom of the sandblasting cabinet (1) is provided with a support (13) for mounting the lifting and rotating assembly (3); one side of the sandblasting cabinet (1) is provided with a first door body (14); the first door body (14) is provided with a visual window and an operating hole for an arm to be inserted into the cabinet; the adjacent side of the first door body (14) is provided with a second door body (15) for facilitating the placement of a workpiece to be processed; the bottom of the sandblasting cabinet (1) is provided with a switch connected to the second door body (15). A hydraulic bearing plate (16) corresponding to the sandblasting cabinet (1) is disposed on the hydraulic bearing plate (16), and a carrier (17) for transporting the workpiece to be processed to the lifting and rotating assembly (3) is disposed on the hydraulic bearing plate (16). When one end of the hydraulic bearing plate (16) contacts the ground, the carrier (17) loads the workpiece to be processed and moves it onto the hydraulic bearing plate (16). After one end of the hydraulic bearing plate (16) moves to be flush with the bottom of the sandblasting cabinet (1), the carrier (17) is moved to move the workpiece to be processed to the lifting and rotating assembly (3) in the cabinet.

7. A sandblasting device suitable for circular workpieces according to claim 6, characterized in that: The transport device (17) comprises a transport vehicle (171); the upper end surface of the hydraulic bearing plate (16) is provided with a first guide rail (172) for guiding the movement of the transport vehicle (171); the bottom of the sandblasting cabinet (1) is provided with a second guide rail (173) connected to the first guide rail (172); and a plurality of blocking cylinders (4) corresponding to the wheels of the transport vehicle (171) are provided along the first guide rail (172) to prevent the transport vehicle (171) from rolling back.

8. A sandblasting device suitable for circular workpieces according to claim 7, characterized in that: The lifting and rotating assembly (3) comprises a mounting beam (31) fixed to the support (13); a lifting motor (32) is provided on the mounting beam (31); the lifting motor (32) comprises a screw rod (33); the screw rod (33) passes through the connecting channel (12) to the inside of the sandblasting cabinet (1); a connecting head (34) is provided at the upper end of the screw rod (33); a supporting plate (35) is connected above the connecting head (34); a third reducer (36) is provided at the lower end of the supporting plate (35); a third servo motor (37) is connected to one side of the third reducer (36); and a servo motor (37) is provided on the other side of the third reducer (36) to pass through the connecting channel (12). The supporting plate (35) is connected to a third gear (38) on the upper end of the plate. A slewing bearing (39) is provided on the upper part of the supporting plate (35). A rack is provided on the outer periphery of the slewing bearing (39) to cooperate with the third gear (38) for transmission connection. The slewing bearing (39) is provided with a rotating support (310) that rotates synchronously with the slewing bearing (39). A support frame (311) that can carry a workpiece to be processed is installed on the rotating support (310). When the third servo motor (37) is running, the third gear (38) causes the slewing bearing (39) to rotate synchronously and finally causes the support frame (311) to rotate.

9. A sandblasting device suitable for circular workpieces according to claim 8, characterized in that: A first opening (174) matching the shape of the support frame (311) is provided on the bearing surface of the carrier (171); the first opening (174) is connected to a second opening (175) extending to the edge of the bearing surface of the carrier (171); the second opening (175) is semi-closed to facilitate the passage of the screw rod (33); when the carrier (171) is loaded with a workpiece to be processed and moved to a position vertically corresponding to the second opening (175) and the support frame (311), the support frame (311) lifts the workpiece to be processed to separate it from the carrier (171), thereby moving the carrier (171) out of the sandblasting cabinet (1).

10. A sandblasting device suitable for a circular workpiece according to claim 6, characterized in that: A sand discharge valve (18) for collecting waste sand is provided at the bottom of the sandblasting cabinet (1), and the sand discharge valve (18) is connected to a corresponding sand storage tank via an external pipeline to collect waste sand. A dust extraction pipe (19) is connected to one side of the sandblasting cabinet (1), and a dust collection cabinet (20) connected to the dust extraction pipe (19) via an external pipeline is provided next to the sandblasting cabinet (1) for collecting waste dust generated inside the sandblasting cabinet (1) when the sandblasting cabinet (1) is in operation.

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