Positioning clamp system for cutting spherical stainless steel plate

Abstract

The utility model relates to the technical field of cutting, in particular to a positioning clamp system for cutting a spherical stainless steel plate. The positioning clamp system comprises a bearing frame, an optical guiding device support, an optical guiding device, a cutting gun stabilizing frame and a rotary working platform, the rotary working platform is rotationally arranged on the bearing frame along the axis of the rotary working platform, and the top of the rotary working platform is an umbrella-shaped cambered surface; the optical guiding device support is installed on the edge of the bearing frame, and the optical guiding device is arranged at the upper end of the optical guiding device support. The optical guiding device is located above the rotary working platform and points to the central axis of the rotary working platform. The system points to the central axis of the rotary working platform through the optical guiding device, and the positioning precision of the spherical stainless steel plate before cutting and in the cutting process is ensured. The rotary working platform rotates around the rotary working platform and is matched with the cutting gun stably placed on the cutting gun stabilizing frame, during spherical surface cutting, vibration is reduced, the rotary working platform forms a stable movement track, and the cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a positioning fixture system for cutting spherical stainless steel plates. Background Art

[0002] In the field of bridge construction and maintenance, bridge bearings, as key structural components, play a decisive role in the overall stability and durability of bridges. Among them, the spherical crown liner assembly, as the core component of the bridge bearing, is of great significance for transmitting loads and adapting to the deformation of the bridge. This assembly is usually composed of a precisely matched spherical crown liner and a spherical stainless steel plate welded together, requiring extremely high manufacturing precision to ensure that the bearing can effectively disperse stress, reduce wear, and extend the service life.

[0003] However, in the actual production and manufacturing process, due to the limitations of the forging process, it is challenging to directly forge spherical stainless steel plates that fully meet the design requirements, especially in the forming of complex curved surfaces. Therefore, subsequent finishing steps become crucial, and cutting technology has become an effective means to make up for the insufficient forging accuracy and ensure that the final product meets strict engineering standards.

[0004] Traditional cutting methods perform arc cutting by continuously moving the cutting mechanism. When it comes to cutting a sphere to fit the spherical crown liner, it is difficult to meet the processing requirements of high precision and complex curved surfaces. Summary of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a positioning fixture system for cutting spherical stainless steel plates, which solves the problems of inaccurate positioning and inability to achieve high-precision cutting operations of traditional cutting methods when dealing with non-planar materials.

[0007] (II) Technical Solutions

[0008] To achieve the above purpose, the main technical solutions adopted by the utility model include:

[0009] The utility model provides a positioning fixture system for cutting spherical stainless steel plates, including a load-bearing frame, an optical guiding device bracket, an optical guiding device, a cutting gun stabilizing frame, and a rotating working platform. The rotating working platform is rotatably arranged on the load-bearing frame along its axis, and the top of the rotating working platform is an umbrella-shaped arc surface; the optical guiding device bracket is installed at the edge of the load-bearing frame, and the upper end of the optical guiding device bracket is equipped with an optical guiding device; the optical guiding device is located above the rotating working platform and points to the central axis of the rotating working platform; the cutting gun stabilizing frame is arranged at the edge of the load-bearing frame and can be detachably provided with a cutting gun thereon, and points to the peripheral wall surface of the rotating working platform.

[0010] Optionally, the cutting torch stabilizer includes: a mounting plate on which a through-type adjustment slot is provided; a column assembly including a column and a column mounting base, the column being detachably disposed in the column mounting base, and the column mounting base being detachably disposed at any position of the adjustment slot; a bogie that can adjust the height vertically along the column and adjust the rotation angle; a cutting torch mounting interface for mounting the cutting torch, and the cutting torch mounting interface is vertically rotatably mounted on the bogie.

[0011] Optionally, the bogie includes a main sleeve assembly and a sub-sleeve assembly. The main sleeve assembly includes a main sleeve body, a main adjustment handwheel, and a hinged arm; the main sleeve body is sleeved on the column, and the column is provided with threads at one end close to the rotary working platform; the end of the main adjustment handwheel is provided with threads spiraling along its axis, the main adjustment handwheel is nested in the main sleeve body, the main adjustment handwheel and the column are relatively perpendicular and the threads are engaged; the hinged arm is mounted at the bottom of the main sleeve body and is rotatably connected to the sub-sleeve assembly about the vertical axis.

[0012] Optionally, the sub-sleeve assembly includes an intermediate sleeve, a moving cross beam, a sub-adjustment handwheel, and a tip sleeve. The intermediate sleeve is rotatably connected to the hinged arm about the axis of the rotary joint through a rotary joint; the moving cross beam is built in the intermediate sleeve and is configured with a rack at one end facing the rotary working platform; the sub-adjustment handwheel is perpendicular to the moving cross beam and is disposed in the intermediate sleeve, the end of the sub-adjustment handwheel is provided with a gear, and the gear is meshed with the rack; the tip sleeve is fixedly disposed at one end of the moving cross beam away from the sub-adjustment handwheel.

[0013] Optionally, the cutting torch mounting interface includes a mounting groove and a connecting pipe.

[0014] One end of the connecting pipe is rotatably connected to the tip sleeve through the axis of the connecting pipe itself, and the other end of the connecting pipe is perpendicularly connected to the outer surface of the side wall of the mounting groove; a plurality of set screws are provided on the side wall of the mounting groove, and the set screws are evenly arranged along the length direction of the side wall of the mounting groove.

[0015] Optionally, the rotary working platform includes a base module and a rotary assembly. The rotary assembly includes an umbrella-shaped arc surface and a central sleeve. The central sleeve is disposed at the center of the lower end of the umbrella-shaped arc surface, and the central sleeve is embedded in the base module and can rotate synchronously with the upper part of the base module.

[0016] Optionally, the base module includes a base disk and a transition disk coaxially arranged with the base disk. The base disk is detachably mounted on the load-bearing frame, and the transition disk is detachably disposed on the base disk. The diameter of the transition disk is larger than the diameter of the base disk, and the upper end of the transition disk has the same size as the lower end of the umbrella-shaped arc surface and there is a gap between them.

[0017] Optionally, the upper part of the base disk is an open cavity structure. The base disk includes a first substrate, a three-layer annular hierarchical structure, and two ducts. The three-layer annular hierarchical structure includes a central through hole at the center of the base disk, an annular groove arranged around the central through hole, and a protective wall surrounding the outer edge of the first substrate. The two ducts are fixed to one side of the protective wall and arranged in a straight line. The interiors of the two ducts communicate with the inner cavity of the protective wall. The transition disk assembly includes a second substrate and three groups of coaxial annular grooves on the second substrate. The annular grooves are arranged in sequence from the outside to the inside as an outer ring groove, a middle ring groove, and an inner ring groove. The inner ring groove is a through hole penetrating the substrate, and the outer ring groove and the middle ring groove extend upward relative to the surface of the second substrate.

[0018] Optionally, the base module further includes a load-bearing bearing, a worm and gear mechanism, and a driving motor.

[0019] The load-bearing bearing is installed in the annular groove. The worm and gear mechanism includes a worm component and a gear component that mesh with each other. The worm component includes a worm and a bearing at the end of the worm. The worm component is arranged inside the two ducts and is supported by the bearing to ensure the rotation of the worm. One end of the worm is connected to the driving motor. The gear component is installed in the cavity of the base disk, above the load-bearing bearing and detachably connected to the load-bearing bearing. An annular multi-step connecting shaft is provided at the upper end of the center of the gear component. The connecting shaft extends upward and passes through the inner ring groove to be docked with the central sleeve.

[0020] Optionally, the optical guiding device bracket is in an inverted "C" shape. The bottom of the optical guiding device bracket is parallel to the mounting plate. The top of the optical guiding device bracket is parallel to the bottom of the optical guiding device bracket. Both the top and the bottom of the optical guiding device bracket are perpendicular to the side wall of the optical guiding device bracket. The optical guiding device is installed at the top of the optical guiding device bracket, centered directly above the rotary table.

[0021] The optical guiding device includes an infrared emitter and a biaxial adjustment rod group. The biaxial adjustment rod group includes two rotatable adjustment rods and a pair of clamping pieces. The adjustment rods are distributed vertically and are respectively installed between the pair of clamping pieces through corresponding rotary joints. The upper adjustment rod is detachably fixed to the top of the optical guiding device bracket. The lower adjustment rod is detachably and fixedly connected to the infrared emitter.

[0022] (III) Beneficial effects

[0023] The beneficial effects of the present utility model are as follows: The system points to the central axis of the rotating working platform through the optical guiding device, ensuring the positioning accuracy during the preparation before and the cutting process of the spherical stainless steel plate, and reducing human error. The rotating working platform is designed as an umbrella-shaped arc surface, and this special shape helps the workpiece to be stably placed and can better fit the curved surface form of the stainless steel plate. The rotating working platform rotates around itself and cooperates with the cutting gun stably placed on the cutting gun stabilizer. When performing spherical cutting, the vibration is reduced, and the rotating working platform forms a stable motion trajectory, improving the cutting quality. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the cutting gun stabilizer;

[0026] Figure 3 It is a schematic diagram of the structure of the bogie;

[0027] Figure 4 It is a schematic diagram of the structure of the optical guiding device bracket and the optical guiding device;

[0028] Figure 5 It is a schematic diagram of the structure of the rotating assembly;

[0029] Figure 6 It is a schematic diagram of the structure of the transition disc;

[0030] Figure 7 It is a schematic diagram of the structure of the base disc;

[0031] Figure 8 It is a schematic diagram of the structure of the base module;

[0032] Figure 9 It is a schematic diagram of the structure of the worm and worm gear mechanism;

[0033]

Description of the Reference Numerals

[0034] 1, load-bearing frame; 2, optical guiding device bracket; 3, optical guiding device; 4, cutting gun stabilizer; 5, rotating working platform; 6, load-bearing bearing; 7, worm and worm gear mechanism; 8, connecting shaft;

[0035] 31, infrared emitter; 32, double-axis adjusting rod group;

[0036] 321, adjusting rod; 322, clamping piece;

[0037] 41, mounting plate; 42, column assembly; 43, bogie; 44, cutting gun mounting interface;

[0038] 421, column; 422, column mounting seat;

[0039] 431. Main sleeve assembly; 432. Sub-sleeve assembly;

[0040] 4311. Main sleeve body; 4312. Main adjusting handwheel; 4313. Hinge arm;

[0041] 4321. Intermediate sleeve; 4322. Moving crossbeam; 4323. Sub-adjusting handwheel; 4324. Tip sleeve;

[0042] 441. Installation groove; 442. Connecting pipe;

[0043] 51. Base module; 52. Rotating assembly;

[0044] 511. Base disk; 512. Transition disk;

[0045] 5111. First substrate; 5112. Conduit; 5113. Central through-hole; 5114. Annular groove; 5115. Protective wall;

[0046] 5121. Second substrate; 5122. Outer ring groove; 5123. Middle ring groove; 5124. Inner ring groove;

[0047] 521. Umbrella-shaped arc surface; 522. Central sleeve;

[0048] 71. Worm gear assembly; 72. Turbine assembly. Detailed implementation manner

[0049] In order to better explain the present utility model for easy understanding, the following will describe the present utility model in detail through specific implementation manners in conjunction with the accompanying drawings. Among them, the orientation nouns such as "upper", "lower", etc. mentioned in this article are Figure 1 oriented as a reference.

[0050] A positioning fixture system for spherical stainless steel plate cutting proposed in an embodiment of the present utility model, through the integrated optical guiding device 3 and the precision adjustment mechanism, ensures that the cutting gun can accurately align with the preset cutting path, and can achieve high-precision cutting even on complex spherical shapes, reducing errors and improving the quality of finished products. The design of the cutting gun stabilizer 4 allows for quick adjustment of the height and angle of the cutting gun. Combined with the rotatable working platform, it enables operators to easily handle the cutting requirements of stainless steel plates of different sizes and shapes, improving work efficiency. The worm and turbine mechanism 7 and the drive motor are used to automatically control the rotation of the rotating working platform 5, reducing manual intervention, improving the automation level of the processing process, and ensuring the stability and consistency of the cutting process.

[0051] To better understand the above technical solution, the exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present utility model and to fully convey the scope of the present utility model to those skilled in the art.

[0052] Embodiment 1:

[0053] Referring to Figure 1 , the present utility model provides a positioning fixture system for cutting spherical stainless steel plates, including a load-bearing frame 1, an optical guiding device support 2, an optical guiding device 3, a cutting gun stabilizer 4, and a rotating working platform 5. The rotating working platform 5 is rotatably arranged on the load-bearing frame 1 along its axis, and the top of the rotating working platform 5 is an umbrella-shaped arc surface 521. The optical guiding device support 2 is installed at the edge of the load-bearing frame 1, and the upper end of the optical guiding device support 2 is equipped with an optical guiding device 3. The optical guiding device 3 is located above the rotating working platform 5 and points to the central axis of the rotating working platform 5; the cutting gun stabilizer 4 is arranged at the edge of the load-bearing frame 1 and can be used for the cutting gun to be detachably arranged thereon and points to the peripheral wall surface of the rotating working platform 5.

[0054] The rotating working platform 5 adopts the design of the umbrella-shaped arc surface 521, which not only provides good support for the spherical stainless steel plate to be cut, but also can rotate flexibly along its axis, facilitating cutting operations from various angles, enhancing the operation flexibility and adaptability of the system, and making the cutting effect better.

[0055] The ingenious design of the cutting gun stabilizer 4 allows the cutting gun to be detachably installed and point to the peripheral wall surface of the rotating working platform 5, facilitating the rapid adjustment of the position of the cutting gun according to different cutting requirements, while ensuring the stability during the cutting process, reducing vibration, and improving the cutting accuracy and efficiency.

[0056] Referring to Figure 2 and Figure 3 , the cutting gun stabilizer 4 includes: a mounting plate 41, with a through-type adjustment slot provided in the middle of the mounting plate 41; a column assembly 42, the column assembly 42 includes a column 421 and a column mounting seat 422, the column 421 is detachably arranged in the column mounting seat 422, and the column mounting seat 422 is detachably arranged at any position of the adjustment slot; a turntable 43, the turntable 43 can vertically adjust the height and adjust the rotation angle along the column 421; a cutting gun mounting interface 44 for mounting the cutting gun, and the cutting gun mounting interface 44 is vertically rotatably mounted on the turntable 43.

[0057] The cutting torch stabilizer 4 realizes a large range of adjustment capabilities for the cutting torch in terms of height and rotation angle through the combined design of the column assembly 42 and the bogie 43. The column mounting seat 422 can be installed at any position in the adjustment slot, enabling the cutting torch to be quickly adjusted to the most suitable position according to the actual cutting requirements, improving the adaptability and flexibility of the operation, and thus achieving the best positioning of the cutting torch.

[0058] The column 421 is detachably arranged in the column mounting seat 422, and the design that the column mounting seat 422 is detachably placed in the adjustment slot greatly facilitates the assembly, adjustment and maintenance process of the cutting torch stabilizer 4, reduces the time required for tool replacement or maintenance, and improves work efficiency.

[0059] Refer to Figure 2 and Figure 3 , the bogie 43 includes a main sleeve assembly 431 and a sub-sleeve assembly 432. The main sleeve assembly 431 includes a main sleeve body 4311, a main adjustment handwheel 4312 and a hinged arm 4313. The main sleeve body 4311 is sleeved on the column 421, and the column 421 is provided with threads near one end of the rotary working platform 5. The end of the main adjustment handwheel 4312 is provided with threads spiraling along its axis, the main adjustment handwheel 4312 is nested in the main sleeve body 4311, the main adjustment handwheel 4312 and the column 421 are relatively vertically arranged and the threads are engaged. The hinged arm 4313 is installed at the bottom of the main sleeve body 4311 and is rotatably connected to the sub-sleeve assembly 432 around the vertical axis.

[0060] Locking components are respectively arranged at the main sleeve body 4311, the intermediate sleeve 4321 and the end sleeve, and can be locked after adjusting to the appropriate position.

[0061] Refer to Figure 3 , the sub-sleeve assembly 432 includes an intermediate sleeve 4321, a moving cross beam 4322, a sub-adjustment handwheel 4323 and an end sleeve 4324. The intermediate sleeve 4321, the intermediate sleeve 4321 is rotatably connected to the hinged arm 4313 around the axis of the rotary joint; the moving cross beam 4322, is built in the intermediate sleeve 4321 and is configured with a rack at one end facing the rotary working platform 5; the sub-adjustment handwheel 4323, is vertically arranged in the intermediate sleeve 4321 and is perpendicular to the moving cross beam 4322, the end of the sub-adjustment handwheel 4323 is provided with a gear, and the gear is meshed with the rack; the end sleeve, the end sleeve is fixedly arranged at one end of the moving cross beam 4322 away from the sub-adjustment handwheel 4323.

[0062] Through the threaded engagement design between the main adjustment handwheel 4312 and the column 421, as well as the gear-rack meshing mechanism in the secondary sleeve assembly 432, fine adjustment of the cutting torch in terms of height and angle is achieved. After adjusting to the ideal position, the locking components set at the main sleeve body 4311, the intermediate sleeve 4321, and the tip sleeve can firmly fix all components, ensuring absolute stability of the position during the cutting process, avoiding offsets caused by vibration, and greatly improving the cutting accuracy.

[0063] The articulated arm 4313 connects the main sleeve and the secondary sleeve assembly 432, allowing the latter to rotate freely in the horizontal direction. Combined with the cooperation between the moving crossbeam 4322 and the secondary adjustment handwheel 4323, it enables the operator to easily and precisely adjust the pointing of the cutting torch, maintaining the accuracy of the cutting path even during operations on complex curved surfaces, enhancing the stability and maneuverability of the system.

[0064] The convenient adjustment and locking design simplifies the operation process, reduces the setup time, and improves the operation efficiency. At the same time, the firm locking mechanism ensures the stable state of all components during the cutting process, reduces the operation risk, and improves the operation safety.

[0065] The flexibility and high adjustability of this design mean that it can adapt to different specifications of cutting torches and various cutting task requirements. Whether it is standard cutting or complex workpieces that require highly customized cutting, the best cutting configuration can be achieved through adjustment, enhancing the market adaptability and competitiveness of the system.

[0066] Refer to Figure 3 , the cutting torch mounting interface 44 includes a mounting groove 441 and a connecting pipe 442. One end of the connecting pipe 442 is rotatably connected to the tip sleeve 4324 around the axis of the connecting pipe 442 itself, and the other end of the connecting pipe 442 is perpendicularly connected to the outer surface of the side wall of the mounting groove 441. Multiple set screws are provided on the side wall of the mounting groove 441, and the set screws are evenly arranged along the length direction of the side wall of the mounting groove 441.

[0067] The perpendicular connection method between the mounting groove 441 and the connecting pipe 442, combined with the multiple set screws evenly arranged on the side wall of the mounting groove 441, allows for fine adjustment of the mounting position of the cutting torch and fixing of the cutting torch. Through the axis rotation connection design between the connecting pipe 442 and the tip sleeve 4324, longitudinal (pitch angle) adjustment of the cutting torch can be achieved to a certain extent.

[0068] Refer to Figure 5, the rotating work platform 5 includes a base module 51 and a rotating assembly 52. The rotating assembly 52 includes an umbrella-shaped arc surface 521 and a central sleeve 522. The central sleeve 522 is disposed at the center of the lower end of the umbrella-shaped arc surface 521. The central sleeve 522 is embedded in the base module 51 and can rotate synchronously with the upper part of the base module 51. The design of embedding the central sleeve 522 in the base module 51 provides a solid central support for the rotating work platform 5, ensuring stability when carrying a relatively heavy spherical stainless steel plate, reducing shaking or deviation during rotation, and improving machining accuracy and safety.

[0069] The mechanism of the central sleeve 522 rotating synchronously with the upper part of the base module 51 ensures the smoothness and precision of the rotating work platform 5 during rotation. No matter which position it rotates to, the platform can maintain good alignment with the cutting guidance system, which is particularly important for operations that require precise cutting path control.

[0070] The design of the umbrella-shaped arc surface 521 matches the shape of the spherical stainless steel plate, which can better support and fix stainless steel plates with different curvatures, reduce deformation during cutting, ensure the flatness of the cutting surface and cutting quality, and is particularly suitable for processing cutting tasks of complex curved surfaces.

[0071] The close cooperation between the rotating assembly 52 and the base module 51 enables the operator to simply and quickly align the cutting position without frequent adjustment, reducing the operation complexity and improving the coherence and accuracy of cutting.

[0072] Refer to Figure 6 、 Figure 7 and Figure 8 , the base module 51 includes a base disk 511 and a transition disk 512 coaxially arranged with the base disk 511. The base disk 511 is detachably installed on the load-bearing frame 1, and the transition disk 512 is detachably arranged on the base disk 511. The diameter of the transition disk 512 is larger than that of the base disk 511, and the upper end of the transition disk 512 has the same size as the lower end of the umbrella-shaped arc surface 521 and there is a gap between them.

[0073] The introduction of the transition disk 512, especially its design with a diameter larger than that of the base disk 511, provides an additional support structure for the rotating work platform 5, increasing the adaptability of the system to workpieces of different sizes and types. By the detachable setting of the transition disk 512, the configuration of the base module 51 can be flexibly adjusted according to the requirements of specific cutting tasks, enhancing the flexibility and versatility of the system.

[0074] The design that the upper end of the transition disk 512 has the same size as the lower end of the umbrella-shaped arc surface 521 and there is an appropriate gap between them helps to reduce direct contact, avoid friction and wear during rotation, and improve the smoothness of rotation and long-term service performance. The existence of the gap also allows necessary space for heat dissipation and stress concentration reduction, further enhancing the stability and durability of the system.

[0075] Referring to Figure 9 , the upper part of the base disk 511 is an open cavity structure. The base disk 511 includes a first substrate 5111, a three-layer annular hierarchical structure, and two conduits 5112. The three-layer annular hierarchical structure includes a central through hole 5113 arranged at the center of the base disk 511 from the inside out, an annular groove 5114 configured around the central through hole 5113, and a protective wall 5115 surrounding the outer edge of the first substrate 5111. The two conduits 5112 are fixed to one side of the protective wall 5115 and arranged in a straight line, and the interiors of the two conduits 5112 communicate with the inner cavity of the protective wall 5115. The transition disk 512 assembly includes a second substrate 5121 and three groups of coaxial annular grooves located on the second substrate 5121. The annular grooves are arranged from the outside to the inside in sequence as an outer ring groove 5122, a middle ring groove 5123, and an inner ring groove 5124. The inner ring groove 5124 is a through hole penetrating the substrate, and the outer ring groove 5122 and the middle ring groove 5123 extend upward relative to the surface of the second substrate 5121.

[0076] The combination of the open cavity structure and the three-layer annular hierarchical design not only reduces the overall weight but also maintains the strength and stability of the structure. Especially when carrying the rotating work platform 5 and the stainless steel plate, it can effectively disperse the force and prevent deformation.

[0077] The layout of the central through hole 5113 and the annular groove 5114 provides installation space for core components such as the worm and gear mechanism 7 and the load-bearing bearing 6, realizes the integrated design of power transmission and rotational support, and improves the system integration degree and space utilization rate.

[0078] The design of the three groups of coaxial annular grooves (outer ring groove 5122, middle ring groove 5123, inner ring groove 5124) on the transition disk 512 provides precise installation positioning and support for the rotating assembly 52. Especially the inner ring groove 5124 designed as a through hole ensures the precise docking of the central sleeve 522, improving the accuracy and stability of the entire rotating system.

[0079] Referring to Figure 9The base module 51 also includes a load-bearing bearing 6, a worm-turbine mechanism 7 and a driving motor. The load-bearing bearing 6 is installed in the annular groove 5114. The worm-turbine mechanism 7 includes a mutually meshing worm assembly 71 and a turbine assembly 72. The worm assembly 71 includes a worm and a bearing at the end of the worm. The worm assembly 71 is arranged inside the two guide tubes 5112 and supported by the bearing to ensure the rotation of the worm. One end of the worm is connected to the driving motor. The turbine assembly 72 is installed in the cavity of the base disc 511, located above the load-bearing bearing 6 and detachably connected to the load-bearing bearing 6. An annular multi-step step connecting shaft 8 is arranged at the central upper end of the turbine assembly 72. The connecting shaft 8 extends upward and passes through the inner annular groove 5124 to dock with the central sleeve 522.

[0080] The worm-turbine mechanism 7 efficiently and stably converts the rotational motion of the drive motor into the rotational motion of the rotating work platform 5 through the precise meshing of the worm and the turbine assembly 72. The bearing design at the end of the worm further enhances the stability and durability of the transmission, reduces friction loss, and improves mechanical efficiency.

[0081] The load-bearing bearing 6 is installed in the annular groove 5114, directly supporting the rotating working platform 5 and its load, effectively dispersing the weight pressure, reducing the burden on other structural components, extending the service life of the equipment, and ensuring smooth and jitter-free rotation.

[0082] The annular multi-step connecting shaft 8 at the center of the turbine assembly 72 ensures accurate transmission of the rotational motion by precisely docking with the central sleeve 522, avoiding deviation and shaking, which is essential for achieving high-precision cutting. This direct and accurate transmission method, combined with the precise control of the drive motor, can achieve fine adjustment and control of the cutting process.

[0083] Reference Figure 1 and Figure 4 The optical guide bracket 2 is in the shape of an inverted Chinese character "匚". The bottom of the optical guide bracket 2 is parallel to the mounting plate 41. The top of the optical guide bracket 2 is parallel to the bottom of the optical guide bracket 2. The top of the optical guide bracket 2 and the bottom of the optical guide bracket 2 are both perpendicular to the side wall of the optical guide bracket 2. The bottom, side wall and top of the optical guide bracket 2 are connected to form an inverted Chinese character "匚". The top of the optical guide bracket 2 is installed with an optical guide 3 centered just above the rotating table.

[0084] The optical guiding device 3 includes an infrared emitter 31 and a biaxial adjusting rod group 32. The biaxial adjusting rod group 32 includes two rotatable adjusting rods 321 and a pair of clamping pieces 322. The adjusting rods 321 are vertically distributed and are respectively installed between a pair of clamping pieces 322 through corresponding rotary joints. The upper adjusting rod 321 is detachably fixed to the top of the optical guiding device bracket 2, and the lower adjusting rod 321 is detachably and fixedly connected to the infrared emitter 31.

[0085] The optical guiding device 3 provides precise non-contact guiding through the infrared emitter 31, ensuring the accuracy of the cutting path. This is particularly important for spherical stainless steel plates that require high-precision cutting, which can significantly improve the cutting quality and reduce errors and scrap rates.

[0086] The design of the biaxial adjusting rod group 32 enables the infrared emitter 31 to be finely adjusted, which is extremely crucial when dealing with workpieces of different sizes and curvatures. The operator can quickly adjust to the optimal guiding position because the spherical stainless steel plate to be cut is placed in front of the rotating assembly 52 to draw the center origin as the guiding position, improving the adaptability and flexibility of the equipment.

[0087] The design of the optical guiding device bracket 2 not only ensures the stability and rigidity of the overall structure, but also ensures the stability and reliability of the guiding device during the cutting process through the parallel and perpendicular layout of the top and bottom with the mounting plate 41 and the rotating worktable, reducing the deviation caused by vibration.

[0088] Working principle:

[0089] Presetting and calibration stage: First, through the infrared emitter 31, the core of the optical guiding device 3, align with the axis of the umbrella-shaped arc surface 521 at the center of the rotating work platform 5, and mark an accurate circular trajectory and cutting line on the spherical stainless steel plate. The stainless steel plate is then firmly placed on the rotating work platform 5, and the arc surface design of the platform perfectly fits the plate surface, providing a stable foundation for subsequent cutting. Through fine adjustment, ensure that the drawn circle is completely aligned with the light of the infrared emitter 31, establishing an accurate guide for the cutting path.

[0090] Precise positioning of the cutting gun: Using the column mounting seat 422, bogie 43, and professional cutting gun mounting interface 44 of the system, implement a series of precise adjustments to firmly fix the cutting gun at the starting point of the preset cutting line on the stainless steel plate. This arrangement ensures that the tip of the cutting gun precisely points to the edge of the stainless steel plate, preparing for plasma cutting.

[0091] Automatic rotation cutting process: After the driving motor built in the system is started, through the worm and gear transmission mechanism, it drives the rotating working platform 5 to rotate smoothly and evenly around its axis. During this process, the cutting gun remains stationary, while the stainless steel plate moves as the platform rotates, guiding the cutting gun along a pre-set trajectory, and the stationary cutting gun performs continuous and precise plasma cutting.

[0092] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically and clearly defined.

[0093] In the present utility model, unless otherwise clearly specified and defined, the terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium; it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0094] In the present utility model, unless otherwise clearly specified and defined, when the first feature is "on" or "under" the second feature, it may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, when the first feature is "above", "over" and "on" the second feature, it may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. When the first feature is "under", "below" and "beneath" the second feature, it may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0095] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0096] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A positioning fixture system for cutting spherical stainless steel plates, characterized in that: It comprises a load-bearing frame (1), an optical guide device bracket (2), an optical guide device (3), a cutting gun stabilizing frame (4) and a rotating working platform (5). The rotating working platform (5) is rotatably arranged on the load-bearing frame (1) along its axis, and the top of the rotating working platform (5) is an umbrella-shaped arc surface (521); The optical guide device bracket (2) is installed on the edge of the load-bearing frame (1), and the upper end of the optical guide device bracket (2) is equipped with the optical guide device (3); The optical guide device (3) is located above the rotating working platform (5) and points to the central axis of the rotating working platform (5); The cutting gun stabilizing frame (4) is arranged on the edge of the load-bearing frame (1), and can allow the cutting gun to be detachably arranged thereon, and is directed toward the peripheral wall surface of the rotating working platform (5).

2. The positioning fixture system according to claim 1, characterized in that: The cutting gun stabilizing frame (4) comprises: The mounting plate (41) has a through-type adjusting slot disposed in the middle thereof; A column assembly (42), the column assembly (42) comprising a column (421) and a column mounting seat (422), the column (421) being detachably arranged in the column mounting seat (422), and the column mounting seat (422) being detachably arranged at any position of the adjustment slot; A bogie (43), wherein the bogie (43) can be adjusted in height and rotation angle vertically along the column (421); A cutting gun mounting interface (44) for mounting a cutting gun, wherein the cutting gun mounting interface (44) is mounted on a bogie (43) by vertical rotation.

3. The positioning fixture system according to claim 2, characterized in that: The bogie (43) comprises a main sleeve assembly (431) and a secondary sleeve assembly (432), wherein the main sleeve assembly (431) comprises a main sleeve body (4311), a main adjustment hand wheel (4312) and an articulated arm (4313); The main sleeve body (4311) is sleeved on the column (421), and the column (421) is provided with a thread at one end close to the rotating working platform (5); The end of the main adjusting hand wheel (4312) is provided with a thread spiraling along its axis, the main adjusting hand wheel (4312) is nested in the main sleeve body (4311), and the main adjusting hand wheel (4312) and the column (421) are arranged perpendicular to each other and the threads are engaged; The articulated arm (4313) is mounted on the bottom of the main sleeve body (4311) and is connected to the auxiliary sleeve assembly (432) for rotation around a vertical axis.

4. The positioning fixture system according to claim 3, characterized in that: The secondary sleeve assembly (432) includes a middle sleeve (4321), a movable crossbeam (4322), a secondary adjustment hand wheel (4323) and a distal sleeve (4324). The intermediate sleeve (4321), the intermediate sleeve (4321) is connected to the articulated arm (4313) via a rotating joint so as to rotate axially around the rotating joint; The movable crossbeam (4322) is built into the intermediate sleeve (4321) and is provided with a rack at one end facing the rotating working platform (5); The auxiliary adjusting hand wheel (4323) is vertically arranged in the middle sleeve (4321) and perpendicular to the moving cross beam (4322), and a gear is arranged at the end of the auxiliary adjusting hand wheel (4323), and the gear is meshed and connected with the rack; The distal sleeve is fixedly arranged on the movable crossbeam (4322) at one end away from the auxiliary adjustment hand wheel (4323).

5. The positioning fixture system according to claim 4, characterized in that: The cutting gun mounting interface (44) comprises a mounting groove (441) and a connecting pipe (442). One end of the connecting tube (442) is rotatably connected to the distal sleeve (4324) via the axis of the connecting tube (442), and the other end of the connecting tube (442) is vertically connected to the outer surface of the side wall of the mounting groove (441); A plurality of top screws are arranged on the side wall of the installation groove (441), and the top screws are evenly arranged along the length direction of the side wall of the installation groove (441).

6. The positioning fixture system according to claim 1, characterized in that: The rotating working platform (5) comprises a base module (51) and a rotating assembly (52), wherein the rotating assembly (52) comprises an umbrella-shaped curved surface (521) and a central sleeve (522), wherein the central sleeve (522) is arranged at the lower end center of the umbrella-shaped curved surface (521), and the central sleeve (522) is embedded in the base module (51) and can rotate synchronously with the upper part of the base module (51).

7. The positioning fixture system according to claim 6, characterized in that: The base module (51) comprises a base disc (511) and a transition disc (512) coaxially arranged with the base disc (511); the base disc (511) is detachably mounted on the load-bearing frame (1); the transition disc (512) is detachably arranged on the base disc (511); the diameter of the transition disc (512) is greater than the diameter of the base disc (511); the upper end of the transition disc (512) is the same size as the lower end of the umbrella-shaped curved surface (521), and there is a gap between the two.

8. The positioning fixture system according to claim 7, characterized in that: The upper part of the base disc (511) is an open cavity structure. The base disc (511) includes a first substrate (5111), a three-layer annular hierarchical structure and two conduits (5112). The three-layer annular hierarchical structure is respectively, from inside to outside, a central through hole (5113) arranged at the center of the base disc (5111), an annular groove (5114) arranged around the central through hole (5113), and a protective wall (5115) surrounding the outer edge of the first substrate (5111); the two conduits (5112) are fixed to one side of the protective wall (5115) and arranged in a straight line, and the interior of the two conduits (5112) is communicated with the inner cavity of the protective wall (5115); The transition disc (512) assembly comprises a second substrate (5121) and three groups of coaxial annular grooves located on the second substrate (5121), wherein the annular grooves are arranged from the outside to the inside in sequence as an outer annular groove (5122), a middle annular groove (5123) and an inner annular groove (5124), wherein the inner annular groove (5124) is a through hole penetrating the substrate, and the outer annular groove (5122) and the middle annular groove (5123) extend upward relative to the surface of the second substrate (5121).

9. The positioning fixture system according to claim 8, characterized in that: The base module (51) further includes a load-bearing bearing (6), a worm and turbine mechanism (7), and a driving motor. The load-bearing bearing (6) is installed in the annular groove (5114). The worm and turbine mechanism (7) includes a worm component (71) and a turbine component (72) that mesh with each other. The worm component (71) includes a worm and a bearing at the end of the worm. The worm component (71) is arranged inside the two conduits (5112) and is supported by the bearing to ensure the rotation of the worm. One end of the worm is connected to the driving motor. The turbine component (72) is installed in the cavity of the base disk (511), above the load-bearing bearing (6) and is detachably connected to the load-bearing bearing (6). An annular multi-step connecting shaft (8) is provided at the upper end of the center of the turbine component (72). The connecting shaft (8) extends upward and passes through the inner ring groove (5124) to be docked with the central sleeve (522).

10. The positioning fixture system according to claim 2, characterized in that: The optical guiding device bracket (2) is in an inverted "C" shape, and its bottom is parallel to the mounting plate (41); an optical guiding device (3) is installed at the top, centered directly above the rotary table. The optical guiding device (3) includes an infrared emitter (31) and a biaxial adjustment rod group (32). The biaxial adjustment rod group (32) includes two rotatable adjustment rods (321) and a pair of clamping pieces (322). The adjustment rods (321) are distributed vertically and are respectively installed between the pair of clamping pieces (322) through corresponding rotary joints. The upper adjustment rod (321) is detachably fixed to the top of the optical guiding device bracket (2), and the lower adjustment rod (321) is detachably and fixedly connected to the infrared emitter (31).

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