A positioning carrier based on CNC machining and its machining method

Abstract

This invention belongs to the field of CNC machining positioning fixture technology, specifically a positioning fixture based on CNC machining and its machining method. It includes a base plate, a support plate fixedly connected to the upper surface of a slide table, the support plate being used to assist the clamping block in limiting the position of a disc; a pre-processing component is also provided on the upper surface of the slide table, the pre-processing component including a fixed motor fixedly connected to the upper surface of the slide table, a rotating gear fixedly connected to the output end of the fixed motor, the rotating gear meshing with a gear ring, the gear ring being rotatably disposed on both sides of the support plate, an arc-shaped plate fixedly connected to the circumference of the gear ring, a positioning plate elastically connected to one side of the arc-shaped plate, and a cleaning block fixedly connected to the bottom end of the positioning plate. By setting up the pre-processing component, the problem of welding misalignment caused by the lack of fixed limiting after splicing the figure-eight blind plates is solved. Simultaneously, the pre-processing component pre-processes the joint, solving the problem of poor welding quality.

Description

Technical Field

[0001] This invention belongs to the field of CNC machining positioning carrier technology, specifically a positioning carrier based on CNC machining and its machining method. Background Technology

[0002] In CNC machining, positioning fixtures are key auxiliary devices that ensure the machining accuracy and stability of workpieces. Especially when machining workpieces with complex shapes that require the assembly of multiple parts (such as figure-eight blind flanges commonly used in pipeline systems), the limiting accuracy and pre-processing capabilities of the positioning fixture directly affect the machining quality. In current CNC machining, the workpiece to be machined is usually placed directly on the machine tool table or a simple positioning block, and then manually aligned and spot-welded by the operator before starting the CNC machine tool for machining.

[0003] However, in practice, existing positioning carriers can only provide basic placement support and lack active limiting and pre-processing functions for workpieces. For example, when machining a figure-eight blind plate-like workpiece consisting of two discs and a middle steel plate, the various parts of the workpiece are not effectively fixed after placement. During CNC machining, they are prone to displacement due to cutting forces or vibrations, resulting in machining position deviation, weld enlargement, or dimensional deviation. Displacement not only reduces machining accuracy but may also form stress concentration areas, increasing the risk of workpiece cracking, thus causing poor machining quality.

[0004] Secondly, if CNC machining (such as welding or cutting) is performed directly after the assembly is completed, impurities such as oil and dust often exist at the workpiece joint. These impurities will seriously affect the machining quality, potentially leading to slag inclusions, cracks, or defects on the cut surface. These defects not only reduce the strength and service life of the workpiece but may also affect its sealing performance, resulting in product defects. Existing positioning carriers lack the function of pre-treating the machining area and cannot automatically apply flux or provide auxiliary limits before machining, making it difficult to meet the requirements of high-precision and high-efficiency CNC machining.

[0005] Therefore, the present invention provides a positioning carrier based on CNC machining and its machining method. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The positioning carrier based on CNC machining of the present invention includes a base plate, and a limiting component is provided on the upper surface of the base plate. The limiting component includes two slides slidably disposed on the upper surface of the base plate. Each slide has a clamping block fixedly connected to both sides. The arc surface of the clamping block on both sides of the two slides is adapted to the arc surface of the disk. A support plate is fixedly connected to the upper surface of the slide, and the support plate is used to assist the clamping block in limiting the disk. The upper surface of the slide is also provided with a pretreatment component, which includes a fixed motor fixedly connected to the upper surface of the slide. A rotating gear is fixedly connected to the output end of the fixed motor. The rotating gear meshes with a gear ring. The gear ring is rotatably arranged on both sides of the support plate. An arc-shaped plate is fixedly connected to the circumferential surface of the gear ring. A positioning plate is elastically connected to one side of the arc-shaped plate. A cleaning block is fixedly connected to the bottom end of the positioning plate. Below the pretreatment component is a welding flux component, which includes a storage box fixed to one side of the support plate, and a plurality of nozzles facing the welding point are fixed to one side of the storage box.

[0008] Preferably, a fixing plate is fixedly connected to both sides of the support plate, and an annular groove is formed on the inner wall of the gear ring. The gear ring rotates along the fixing plate through the annular groove, thereby driving the cleaning block to perform periodic cleaning work.

[0009] Preferably, the pretreatment component further includes a connecting plate elastically connected to one end of the arc-shaped plate, a positioning plate fixedly connected to the lower surface of the connecting plate, a cleaning block fixedly connected to the lower surface of the positioning plate, an extrusion member provided on one side of the positioning plate for limiting the position of the steel plate, and an auxiliary member provided on one side of the support plate for assisting the cleaning block in cleaning the connection of the figure-eight blind plate.

[0010] Preferably, the auxiliary component includes a hydraulic cylinder fixed to one side of the support plate, an auxiliary plate fixed to the output end of the hydraulic cylinder, two clamping plates fixed to the lower surface of the auxiliary plate, a locking block fixed to the upper surface of the connecting plate, the locking block passing between the two clamping plates, and an auxiliary cleaning block cleaning the straight gap direction at the joint of the figure-eight blind plate.

[0011] Preferably, after the fixed motor starts, it drives the rotating gear to rotate. The rotation of the rotating gear drives the gear ring meshing with it to rotate. The rotation of the gear ring drives the cleaning block at one end of the arc plate to clean the joint of the figure-eight blind plate. Since the joint of the figure-eight blind plate is in a straight line, the hydraulic cylinder is started in advance to push the auxiliary plate and the two clamping plates to move directly above the joint of the figure-eight blind plate. When the gear ring drives the locking block on the connecting plate to move between the two clamping plates, the connecting plate extends elastically. At this time, the locking block drives the cleaning block to perform a straight cleaning operation between the two clamping plates.

[0012] Preferably, the extrusion member includes a bottom block fixed to one side of the connecting plate, a spring fixed to the upper surface of the bottom block, a connecting block fixed to the top of the spring, a pressing plate fixed to one side of the connecting block, and a top block fixed to one side of the auxiliary plate. The top block is used to press the pressing plate and drive the pressing plate to press the steel plate in the middle of the figure-eight blind plate.

[0013] Preferably, while the gear ring drives the cleaning block at the bottom of the positioning plate to perform cleaning work, the gear ring also drives the pressing plate on one side of the positioning plate to abut against the top block on one side of the auxiliary plate. The top block is fixed and the pressing plate moves downward, compressing the spring. The spring has a telescopic rod inside to limit its movement until the pressing plate and the top block are fully abutted. At this time, the pressing plate presses the steel plate in the middle of the figure-eight blind plate to limit the movement of the steel plate.

[0014] Preferably, the welding flux assembly further includes a fixing groove formed on the upper surface of the storage box, two compression springs fixed to the bottom wall of the fixing groove, the top of the two compression springs being fixed to the same insert plate, the side of the insert plate having an auxiliary hole, the storage box having a connection hole, and the lower surface of the arc plate having a protrusion fixed to it.

[0015] Preferably, as the arc plate continues to rotate and clean the cleaning block, after the cleaning block disengages from the figure-eight blind plate joint, the protrusion on the lower surface of the arc plate abuts against the insert plate. The protrusion presses the insert plate downward, and the downward movement of the insert plate aligns the auxiliary hole on the side of the insert plate with the connection hole in the storage box. This allows the flux in the storage box to be pressurized, pass through the connection hole and the auxiliary hole, and then be sprayed out from the nozzle to the figure-eight blind plate joint.

[0016] Preferably, a rectangular stop is fixed to the upper surface of each clamping block, the stop being used to longitudinally limit the movement of the two disks.

[0017] A machining method for a positioning carrier based on CNC machining includes the following steps: Place the processing components and limit their movement: Place the two discs and steel plate of the figure-eight blind plate between the two sets of clamping blocks on the upper surface of the base plate, slide the slide table to make the arc surface of the clamping blocks fit the arc surface of the discs, and limit the discs longitudinally by the stop blocks; Start the pretreatment component for straight-line cleaning: Start the fixed motor, drive the rotating gear to rotate the gear ring, so that the cleaning block at one end of the arc plate cleans the joint of the figure-eight blind plate; at the same time, start the hydraulic cylinder, push the auxiliary plate and the two clamping plates to move directly above the joint, and the gear ring drives the clamping block to move between the two clamping plates, so that the cleaning block cleans in a straight line. The steel plate is limited by the extrusion component: the gear ring drives the pressing plate on one side of the positioning plate to abut against the top block on one side of the auxiliary plate, the pressing plate compresses the spring downward and presses the steel plate in the middle of the figure-eight blind plate; Trigger flux spraying component: After the arc plate drives the cleaning block to complete the cleaning, it continues to rotate. The protrusion on the lower surface of the arc plate abuts against the insert plate, squeezing the insert plate to move downward, so that the auxiliary hole is aligned with the connection hole. The flux in the storage box is pressurized and sprayed from the nozzle to the joint of the figure-eight blind plate. Perform welding: Start the welding machine to weld the joint of the figure-eight blind flange.

[0018] The beneficial effects of this invention are as follows: 1. This invention achieves rapid positioning of the figure-eight blind plate disc through a limiting component on the base plate. Two sliding tables can slide on the base plate, and the rubber clamps on both sides can tightly fit the arc surface of the disc, ensuring the disc remains stable. The support plate on the sliding table provides the installation base for the pretreatment component. After placing the two figure-eight blind plate discs and the steel plate between the two sets of clamps on the upper surface of the base plate, the fixing motor of the pretreatment component is started. The fixing motor drives the rotating gear, which in turn drives the gear ring to rotate, so that the cleaning block at one end of the arc plate pretreatments the welding part of the disc to remove impurities. At the same time, after the pretreatment component completes its processing, the flux component is triggered. The flux component uses flux in the storage box to accurately spray onto the welding point through a nozzle, improving the welding quality. This fixture not only achieves rapid and stable positioning of the figure-eight blind plate disc, but also effectively removes impurities from the welding part through the pretreatment component, improving the reliability and quality of the welding. The precise spraying function of the flux component further enhances the welding effect.

[0019] 2. In this invention, after the fixed motor is started, it drives the rotating gear to rotate. The rotation of the rotating gear drives the gear ring meshing with it to rotate. The rotation of the gear ring causes the cleaning block at one end of the arc-shaped plate to clean the joint of the figure-eight blind plate. Since the joint of the figure-eight blind plate is in a straight line, the hydraulic cylinder is started in advance to push the auxiliary plate and the two clamping plates to move directly above the joint of the figure-eight blind plate. When the gear ring drives the locking block on the connecting plate to move between the two clamping plates, the connecting plate extends elastically. At this time, the locking block drives the cleaning block to perform straight cleaning work between the two clamping plates. The elastic extension of the connecting plate allows the locking block to move along the two clamping plates, so that the cleaning block can perform straight cleaning along the joint gap of the figure-eight blind plate, which improves the cleaning efficiency and cleaning quality, and also ensures the consistency and stability of the cleaning work.

[0020] 3. This invention, while the gear ring drives the cleaning block at the bottom of the positioning plate to perform cleaning work, also drives the pressing plate on one side of the positioning plate to abut against the top block on one side of the auxiliary plate. The top block remains stationary, while the pressing plate moves downward, compressing the spring. The spring has a telescopic rod inside that limits its movement until the pressing plate and the top block are fully in contact. At this point, the pressing plate presses down on the steel plate in the middle of the figure-eight blind plate, limiting the movement of the steel plate. While the gear ring drives the cleaning block to perform cleaning work, it also achieves the function of limiting the movement of the steel plate. The contact between the pressing plate and the top block ensures the stability of the steel plate during the cleaning process. This not only improves the synchronization and efficiency of cleaning and limiting work, but also effectively prevents the steel plate from moving or shaking during the cleaning process, thereby ensuring the stability and reliability of the cleaning effect and welding quality. Attached Figure Description

[0021] The invention will be further described below with reference to the accompanying drawings. Figure 1 This is a perspective view of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the pretreatment component of the present invention; Figure 3 This is a schematic diagram of the top block structure of the present invention; Figure 4 This is a schematic diagram of the arc-shaped plate of the present invention; Figure 5 This is a schematic diagram of the storage box of the present invention; Figure 6 This is a cross-sectional view of the storage box of the present invention; Figure 7 This is a schematic diagram of the connection hole structure of the present invention; Figure 8 This is a schematic diagram of the hydraulic cylinder of the present invention.

[0022] In the diagram: 1. Base plate; 2. Slide table; 21. Clamping block; 22. Stopping block; 3. Support plate; 31. Fixed motor; 32. Rotating gear; 33. Gear ring; 34. Fixing plate; 35. Annular groove; 36. Arc plate; 37. Connecting plate; 38. Positioning plate; 39. Cleaning block; 310. Hydraulic cylinder; 311. Auxiliary plate; 312. Clamping plate; 313. Locking block; 4. Top block; 41. Bottom block; 42. Spring; 43. Connecting block; 44. Pressing plate; 5. Storage box; 51. Protrusion; 52. Insert plate; 53. Nozzle; 54. Fixing groove; 55. Compression spring; 56. Connecting hole; 57. Auxiliary hole. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] Example 1: As Figures 1 to 8 As shown in the embodiment of the present invention, a positioning carrier based on CNC machining includes a base plate 1. A limiting component is provided on the upper surface of the base plate 1. The limiting component includes two slides 2 slidably disposed on the upper surface of the base plate 1. Each slide 2 has clamping blocks 21 fixedly connected to both sides. The arc surfaces of the clamping blocks 21 on both sides of the two slides 2 are adapted to the arc surfaces of the disk. A support plate 3 is fixedly connected to the upper surface of the slides 2. The support plate 3 is used to assist the clamping blocks 21 in limiting the disk. A pre-processing component is also provided on the upper surface of the slides 2. The pre-processing component includes components fixedly connected to the upper surface of the slides 2. A fixed motor 31 is mounted on the surface. A rotating gear 32 is fixedly connected to the output end of the fixed motor 31. The rotating gear 32 meshes with a gear ring 33. The gear ring 33 is rotatably mounted on both sides of the support plate 3. An arc-shaped plate 36 is fixedly connected to the circumferential surface of the gear ring 33. A positioning plate 38 is elastically connected to one side of the arc-shaped plate 36. A cleaning block 39 is fixedly connected to the bottom end of the positioning plate 38. A welding flux assembly is provided below the pretreatment assembly. The welding flux assembly includes a storage box 5 fixedly connected to one side of the support plate 3. Several nozzles 53 facing the welding point are fixedly connected to one side of the storage box 5.

[0025] Specifically, when using existing figure-eight blind flange positioning mounting plates, the blind flanges are simply placed on the mounting plate and then spliced ​​by workers. After splicing, the welding machine is started for welding. During this process, when the two discs and steel plates of the figure-eight blind flange are placed on the mounting plate without any form of fixing or pretreatment, the various components of the figure-eight blind flange are prone to displacement during welding due to the lack of stable support and positioning. This will directly lead to an increase in weld size. The increase in weld size not only reduces the aesthetics of the weld, but more importantly, it may become a stress concentration area, increasing the risk of weld cracking and resulting in poor welding quality. Secondly, if welding is carried out directly from the splice after the splice is completed, the oil, dust and other impurities at the weld joint will seriously affect the formation of the weld due to the lack of cleaning. This may lead to defects such as slag inclusions and cracks in the weld. These defects will not only reduce the strength of the weld, but may also affect the sealing performance of the figure-eight blind flange, resulting in the problem of the figure-eight blind flange being of substandard quality. Therefore, this invention addresses the aforementioned problems by providing a corresponding structure. First, the limiting component on the base plate 1 enables rapid positioning of the figure-eight blind plate disc. The two slides 2 can slide on the base plate 1, and the rubber clamps 21 on both sides can tightly fit the arc surface of the disc, ensuring the disc remains stable. The support plate 3 on the slides 2 provides an installation base for the pretreatment component. After placing the two figure-eight blind plate discs and the steel plate between the two sets of clamps 21 on the upper surface of the base plate 1, the fixing motor 31 of the pretreatment component is started, driving the rotating gear 32 through the fixing motor 31. This causes the gear ring 33 to rotate, allowing the cleaning block 39 at one end of the arc plate 36 to pre-treat the welding area of ​​the disc and remove impurities. At the same time, after the pre-treatment component is completed, the welding flux component is triggered. The welding flux component uses the flux in the storage box 5 and sprays it precisely onto the welding point through the nozzle 53 to improve the welding quality. This tooling not only achieves rapid and stable positioning of the figure-eight blind plate disc, but also effectively removes impurities from the welding area through the pre-treatment component, improving the reliability and quality of the welding. The precise spraying function of the welding flux component further enhances the welding effect. The problem of welding misalignment caused by the lack of fixed positioning after splicing the figure-eight blind flange was solved. At the same time, the problem of poor welding quality was solved by pre-treating the joint with the pre-treatment component.

[0026] like Figure 2 As shown, in this embodiment, both sides of the support plate 3 are fixedly connected to the fixing plate 34, and the inner wall of the gear ring 33 is provided with an annular groove 35. The gear ring 33 rotates along the fixing plate 34 through the annular groove 35, thereby driving the cleaning block 39 to perform periodic cleaning work.

[0027] Specifically, the gear ring 33, through the annular groove 35 on its inner wall, cooperates with the fixed plates 34 on both sides of the support plate 3 to achieve stable rotation. When the fixed motor 31 drives the rotating gear 32 to rotate, the gear ring 33 rotates along the annular groove 35, thereby driving the arc plate 36 and the cleaning block 39 on it to continuously clean the welding part of the disc. This enhances the stability of the rotation of the gear ring 33 and ensures that the cleaning block 39 can stably clean the part to be welded, improving cleaning efficiency and cleaning quality. At the same time, the periodic cleaning work also helps to reduce the wear of the cleaning block 39 and extend its service life.

[0028] like Figure 2 As shown, the pretreatment component in this embodiment also includes a connecting plate 37 elastically connected to one end of the arc plate 36. A positioning plate 38 is fixedly connected to the lower surface of the connecting plate 37. A cleaning block 39 is fixedly connected to the lower surface of the positioning plate 38. An extrusion member is provided on one side of the positioning plate 38. The extrusion member is used to limit the position of the steel plate. An auxiliary member is provided on one side of the support plate 3. The auxiliary member assists the cleaning block 39 in cleaning the connection of the figure-eight blind plate.

[0029] Specifically, the steel plate is limited by the extrusion component to prevent the steel plate from tilting up during the extrusion of the two discs and the steel plate by the slides at both ends. This ensures that the cleaning block 39 can accurately act on the welding part. At the same time, the auxiliary component on one side of the support plate 3 can assist the cleaning block 39 in cleaning the connection of the figure-eight blind plate, thereby improving the welding quality and product reliability.

[0030] like Figure 3 and Figure 8 As shown, the auxiliary components in this embodiment include a hydraulic cylinder 310 fixed to one side of the support plate 3, an auxiliary plate 311 fixed to the output end of the hydraulic cylinder 310, two clamping plates 312 fixed to the lower surface of the auxiliary plate 311, a locking block 313 fixed to the upper surface of the connecting plate 37, the locking block 313 passing between the two clamping plates 312, and an auxiliary cleaning block 39 cleaning the straight gap direction at the joint of the figure-eight blind plate.

[0031] Specifically, after the fixed motor 31 starts, it drives the rotating gear 32 to rotate. The rotation of the rotating gear 32 drives the gear ring 33 meshing with it to rotate. The rotation of the gear ring 33 drives the cleaning block 39 at one end of the arc plate 36 to clean the joint of the figure-eight blind plate. Since the joint of the figure-eight blind plate is in a straight line, the hydraulic cylinder 310 is started in advance to push the auxiliary plate 311 and the two clamping plates 312 to move directly above the joint of the figure-eight blind plate. When the gear ring 33 drives the locking block 313 on the connecting plate 37 to move between the two clamping plates 312, the connecting plate 37 extends elastically. At this time, the locking block 313 drives the cleaning block 39 to perform straight cleaning work between the two clamping plates 312. Through the elastic extension setting of the connecting plate 37, the locking block 313 can move along the two clamping plates 312, so that the cleaning block 39 can perform straight cleaning along the joint gap of the figure-eight blind plate, which improves the cleaning efficiency and cleaning quality, and also ensures the consistency and stability of the cleaning work.

[0032] like Figure 4 As shown, the extrusion component in this embodiment includes a bottom block 41 fixed to one side of the connecting plate 37, a spring 42 fixed to the upper surface of the bottom block 41, a connecting block 43 fixed to the top of the spring 42, a pressing plate 44 fixed to one side of the connecting block 43, and a top block 4 fixed to one side of the auxiliary plate 311. The top block 4 is used to press the pressing plate 44 and drive the pressing plate 44 to press the steel plate in the middle of the figure-eight blind plate.

[0033] Specifically, while the gear ring 33 drives the cleaning block 39 at the bottom of the positioning plate 38 to perform cleaning work, the gear ring 33 also drives the pressing plate 44 on one side of the positioning plate 38 to abut against the top block 4 on one side of the auxiliary plate 311. The top block 4 remains fixed, and the pressing plate 44 moves downward, compressing the spring 42. The spring 42 has a telescopic rod inside that limits its movement until the pressing plate 44 and the top block 4 are fully abutted. At this time, the pressing plate 44 presses the steel plate in the middle of the figure-eight blind plate, limiting the movement of the steel plate. While the gear ring 33 drives the cleaning block 39 to perform cleaning work, it also achieves the function of limiting the movement of the steel plate. The abutment between the pressing plate 44 and the top block 4 ensures the stability of the steel plate during the cleaning process. This not only improves the synchronization and efficiency of the cleaning and limiting work, but also effectively avoids the movement or shaking of the steel plate during the cleaning process, thereby ensuring the stability and reliability of the cleaning effect and welding quality.

[0034] Example 2: Figures 1 to 8 As shown in the first embodiment, another embodiment of the present invention is as follows: the flux assembly further includes a fixing groove 54 formed on the upper surface of the storage box 5, two compression springs 55 are fixedly connected to the bottom wall of the fixing groove 54, the top of the two compression springs 55 are fixedly connected to the same insert plate 52, the side of the insert plate 52 is provided with an auxiliary hole 57, the storage box 5 is provided with a connection hole 56, and the lower surface of the arc plate 36 is fixedly connected with a protrusion 51.

[0035] Specifically, as the arc plate 36 rotates and the cleaning block 39 continues to rotate after completing the cleaning work, the cleaning block 39 disengages from the figure-eight blind plate joint. The protrusion 51 on the lower surface of the arc plate 36 then abuts against the insert plate 52. The protrusion 51 presses the insert plate 52 downwards. This downward movement of the insert plate 52 aligns the auxiliary hole 57 on its side with the connection hole 56 inside the storage box 5. This allows the flux inside the storage box 5 to be pressurized and sprayed from the connection hole 56 through the auxiliary hole 57, then from the nozzle 53, onto the figure-eight blind plate joint. As the arc plate 36 continues to rotate... During the process, the automatic spraying of flux is achieved through the gradual contact between the protrusion 51 and the insert plate 52. After the cleaning block 39 completes its cleaning task, the protrusion 51 squeezes the insert plate 52, aligning the auxiliary hole 57 with the connecting hole 56, allowing the flux to be sprayed out smoothly and applied to the joint of the figure-eight blind plate. This not only improves the automation level of flux spraying but also ensures that the flux can be evenly and fully covered on the welding area, thereby improving welding quality and efficiency. At the same time, this design also reduces the tediousness of manual operation and improves the smoothness and controllability of the overall production process.

[0036] like Figure 3 As shown, in this embodiment, a rectangular stop 22 is fixed to the upper surface of each clamping block 21. The stop 22 is used to longitudinally limit the two disks and prevent the disks from vibrating or moving in the vertical direction.

[0037] Specifically, the stop block 22 fixed on the clamping block 21 forms a barrier to the longitudinal movement of the disc, ensuring that the disc will not shift longitudinally during the welding process. This enhances the stability and reliability of the limiting fixture and effectively prevents the disc from shifting longitudinally during welding due to uneven force or improper operation, thereby ensuring the accuracy and quality of the welding.

[0038] Example 3: A machining method for a positioning carrier based on CNC machining. The method uses a limiting component on the base plate 1 to quickly limit the position of the figure-eight blind plate disc. Two slides 2 can slide on the base plate 1. The rubber clamps 21 on both sides of the slides can closely fit the arc surface of the disc to ensure that the disc is stable. The support plate 3 on the slides 2 provides an installation base for the pretreatment component. After placing the two figure-eight blind plate discs and the steel plate between the two sets of clamps 21 on the upper surface of the base plate 1, the fixed motor 31 of the pretreatment component is started. The fixed motor 31 drives the rotating gear 32, which in turn drives the gear ring 33 to rotate. The cleaning block 39 at one end of the arc plate 36 pretreatments the welding part of the disc to remove impurities. The gear ring 33, through the annular groove 35 on its inner wall, cooperates with the fixed plates 34 on both sides of the support plate 3 to achieve stable rotation. When the fixed motor 31 drives the rotating gear 32 to rotate, the gear ring 33 rotates along the annular groove 35, thereby driving the arc plate 36 and the cleaning block 39 on it to continuously clean the welding part of the disc. This enhances the stability of the rotation of the gear ring 33 and ensures that the cleaning block 39 can stably clean the part to be welded, improving cleaning efficiency and cleaning quality. At the same time, the periodic cleaning work also helps to reduce the wear of the cleaning block 39 and extend its service life. In addition, after the fixed motor 31 is started, it drives the rotating gear 32 to rotate. The rotation of the rotating gear 32 drives the gear ring 33 that meshes with it to rotate. The rotation of the gear ring 33 drives the cleaning block 39 at one end of the arc plate 36 to clean the joint of the figure-eight blind plate. Since the joint of the figure-eight blind plate is in a straight line, the hydraulic cylinder 310 is started in advance to push the auxiliary plate 311 and the two clamping plates 312 to move directly above the joint of the figure-eight blind plate. When the gear ring 33 drives the locking block 313 on the connecting plate 37 to move between the two clamping plates 312, the connecting plate 37 extends elastically. At this time, the locking block 313 drives the cleaning block 39 to perform straight cleaning work between the two clamping plates 312. Through the elastic extension setting of the connecting plate 37, the locking block 313 can move along the two clamping plates 312, so that the cleaning block 39 can perform straight cleaning along the joint gap of the figure-eight blind plate, which improves the cleaning efficiency and cleaning quality, and also ensures the consistency and stability of the cleaning work. While the gear ring 33 drives the cleaning block 39 at the bottom of the positioning plate 38 to perform cleaning work, the gear ring 33 also drives the pressing plate 44 on one side of the positioning plate 38 to abut against the top block 4 on one side of the auxiliary plate 311. The top block 4 remains fixed, and the pressing plate 44 moves downward to compress the spring 42. The spring 42 has a telescopic rod inside to limit its movement until the pressing plate 44 and the top block 4 are fully abutted. At this time, the pressing plate 44 presses the steel plate in the middle of the figure-eight blind plate to limit the movement of the steel plate. While the gear ring 33 drives the cleaning block 39 to perform cleaning work, it also realizes the function of limiting the movement of the steel plate. The abutment between the pressing plate 44 and the top block 4 ensures the stability of the steel plate during the cleaning process. This not only improves the synchronization and efficiency of the cleaning and limiting work, but also effectively avoids the movement or shaking of the steel plate during the cleaning process, thereby ensuring the stability and reliability of the cleaning effect and welding quality. Finally, after the pretreatment components have finished processing, the flux components are triggered. As the arc plate 36 continues to rotate, carrying the cleaning block 39 to complete the cleaning work, the cleaning block 39 disengages from the figure-eight blind plate joint. The protrusion 51 on the lower surface of the arc plate 36 abuts against the insert plate 52. The protrusion 51 presses the insert plate 52 downward. The downward movement of the insert plate 52 aligns the auxiliary hole 57 on the side of the insert plate 52 with the connection hole 56 inside the storage box 5. This allows the flux in the storage box 5 to be pressurized and sprayed from the connection hole 56 through the auxiliary hole 57, and then from the nozzle 53 onto the figure-eight blind plate joint. As plate 36 continues to rotate, the flux is automatically sprayed through the gradual contact between protrusion 51 and insert plate 52. After cleaning block 39 completes its cleaning task, protrusion 51 presses insert plate 52 to align auxiliary hole 57 with connecting hole 56, allowing flux to be sprayed out smoothly and applied to the joint of figure-eight blind plate. This not only improves the automation of flux spraying but also ensures that flux can be evenly and fully covered on the welding area, thereby improving welding quality and efficiency. At the same time, this design also reduces the tediousness of manual operation and improves the smoothness and controllability of the overall production process. This tooling not only enables rapid and stable positioning of the figure-eight blind plate disc, but also effectively removes impurities from the welding area through the pretreatment component, improving the reliability and quality of the welding. The precise spraying function of the flux component further enhances the welding effect.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A positioning carrier based on CNC machining, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with a limiting component. The limiting component includes two slides (2) that are slidably disposed on the upper surface of the base plate (1). Each slide (2) has a clamping block (21) fixedly connected to both sides. The arc surface of the clamping block (21) on both sides of the two slides (2) is adapted to the arc surface of the disk. The upper surface of the slide (2) is fixedly connected with a support plate (3). The support plate (3) is used to assist the clamping block (21) in limiting the disk. The upper surface of the slide (2) is also provided with a pretreatment component, which includes a fixed motor (31) fixedly connected to the upper surface of the slide (2). A rotating gear (32) is fixedly connected to the output end of the fixed motor (31). The rotating gear (32) meshes with a gear ring (33). The gear ring (33) is rotatably arranged on both sides of the support plate (3). An arc plate (36) is fixedly connected to the circumferential surface of the gear ring (33). A positioning plate (38) is elastically connected to one side of the arc plate (36). A cleaning block (39) is fixedly connected to the bottom end of the positioning plate (38). Below the pretreatment component is a welding flux component, which includes a storage box (5) fixed to one side of the support plate (3), and a plurality of nozzles (53) facing the welding point are fixed to one side of the storage box (5).

2. The positioning carrier based on CNC machining according to claim 1, characterized in that: The support plate (3) is fixed to both sides by a fixing plate (34). The inner wall of the gear ring (33) is provided with an annular groove (35). The gear ring (33) rotates along the fixing plate (34) through the annular groove (35), thereby driving the cleaning block (39) to perform periodic cleaning work.

3. A positioning carrier based on CNC machining according to claim 2, characterized in that: The pretreatment component also includes a connecting plate (37) elastically connected to one end of the arc plate (36). A positioning plate (38) is fixed to the lower surface of the connecting plate (37). A cleaning block (39) is fixed to the lower surface of the positioning plate (38). An extrusion member is provided on one side of the positioning plate (38). The extrusion member is used to limit the position of the steel plate. An auxiliary member is provided on one side of the support plate (3). The auxiliary member assists the cleaning block (39) in cleaning the connection of the figure-eight blind plate.

4. A positioning carrier based on CNC machining according to claim 3, characterized in that: The auxiliary component includes a hydraulic cylinder (310) fixed to one side of the support plate (3), an auxiliary plate (311) fixed to the output end of the hydraulic cylinder (310), two clamping plates (312) fixed to the lower surface of the auxiliary plate (311), a locking block (313) fixed to the upper surface of the connecting plate (37), the locking block (313) passing between the two clamping plates (312), and an auxiliary cleaning block (39) cleaning the straight gap at the joint of the figure-eight blind plate.

5. A positioning carrier based on CNC machining according to claim 4, characterized in that: After the fixed motor (31) is started, it drives the rotating gear (32) to rotate. The rotation of the rotating gear (32) drives the gear ring (33) that meshes with it to rotate. The rotation of the gear ring (33) drives the cleaning block (39) at one end of the arc plate (36) to clean the joint of the figure-eight blind plate. Since the joint of the figure-eight blind plate is in a straight line, the hydraulic cylinder (310) is started in advance to push the auxiliary plate (311) and the two clamping plates (312) to move directly above the joint of the figure-eight blind plate. When the gear ring (33) drives the locking block (313) on the connecting plate (37) to move between the two clamping plates (312), the connecting plate (37) extends elastically. At this time, the locking block (313) drives the cleaning block (39) to perform straight cleaning work between the two clamping plates (312).

6. A positioning carrier based on CNC machining according to claim 4, characterized in that: The extrusion component includes a bottom block (41) fixed to one side of the connecting plate (37), a spring (42) fixed to the upper surface of the bottom block (41), a connecting block (43) fixed to the top of the spring (42), a pressing plate (44) fixed to one side of the connecting block (43), and a top block (4) fixed to one side of the auxiliary plate (311). The top block (4) is used to press the pressing plate (44) and drive the pressing plate (44) to press the steel plate in the middle of the figure-eight blind plate.

7. A positioning carrier based on CNC machining according to claim 6, characterized in that: While the gear ring (33) drives the cleaning block (39) at the bottom of the positioning plate (38) to perform cleaning work, the gear ring (33) also drives the pressing plate (44) on one side of the positioning plate (38) to abut against the top block (4) on one side of the auxiliary plate (311). The top block (4) remains fixed, and the pressing plate (44) moves downward to compress the spring (42). The spring (42) is equipped with a telescopic rod to limit its movement until the pressing plate (44) and the top block (4) are fully abutted. At this time, the pressing plate (44) presses the steel plate in the middle of the figure-eight blind plate to limit the movement of the steel plate.

8. A positioning carrier based on CNC machining according to claim 1, characterized in that: The welding flux assembly also includes a fixing groove (54) on the upper surface of the storage box (5). Two compression springs (55) are fixed to the bottom wall of the fixing groove (54). The top of the two compression springs (55) is fixed to the same insert plate (52). An auxiliary hole (57) is provided on the side of the insert plate (52). A connection hole (56) is provided inside the storage box (5). A protrusion (51) is fixed to the lower surface of the arc plate (36).

9. A positioning carrier based on CNC machining according to claim 8, characterized in that: As the arc plate (36) drives the cleaning block (39) to complete the cleaning work and continue to rotate, after the cleaning block (39) disengages from the figure-eight blind plate joint, the protrusion (51) on the lower surface of the arc plate (36) abuts against the insert plate (52), and the protrusion (51) squeezes the insert plate (52) to move downward. The downward movement of the insert plate (52) makes the auxiliary hole (57) on the side of the insert plate (52) aligned with the connection hole (56) in the storage box (5), so that the flux in the storage box (5) is pressurized and sprayed from the connection hole (56) through the auxiliary hole (57) and then from the nozzle (53) to the figure-eight blind plate joint.

10. A machining method for a positioning carrier based on CNC machining, characterized in that: Includes the following steps: Place the processing components and limit their movement: Place the two discs and steel plate of the figure-eight blind plate between the two sets of clamping blocks (21) on the upper surface of the base plate (1), slide the slide (2) so that the arc surface of the clamping block (21) fits the arc surface of the disc, and limit the disc longitudinally by the stop block (22); Start the pretreatment component for straight-line cleaning: Start the fixed motor (31) to drive the rotating gear (32) to rotate the gear ring (33), so that the cleaning block (39) at one end of the arc plate (36) cleans the joint of the figure-eight blind plate; at the same time, start the hydraulic cylinder (310) to push the auxiliary plate (311) and the two clamping plates (312) to move directly above the joint, and the gear ring (33) drives the clamping block (313) to move between the two clamping plates (312), so that the cleaning block (39) cleans in a straight line; The steel plate is limited by the extrusion component: the gear ring (33) drives the pressing plate (44) on one side of the positioning plate (38) to abut against the top block (4) on one side of the auxiliary plate (311), and the pressing plate (44) compresses the spring (42) downward to press the steel plate in the middle of the figure-eight blind plate; Trigger flux spraying of the flux assembly: After the arc plate (36) drives the cleaning block (39) to complete the cleaning, it continues to rotate. The protrusion (51) on the lower surface of the arc plate (36) abuts against the insert plate (52), squeezing the insert plate (52) to move downward, so that the auxiliary hole (57) is aligned with the connecting hole (56). The flux in the storage box (5) is sprayed out from the nozzle (53) to the joint of the figure-eight blind plate under pressure. Perform welding: Start the welding machine to weld the joint of the figure-eight blind flange.

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