A silicon carbide laser forming processing system

Abstract

The present invention relates to the technical field of silicon carbide laser cutting processing, specifically a silicon carbide laser forming processing system, including a processing table, wherein the upper end of the processing table is provided with a fixing unit for fixing a silicon carbide tube and a laser cutting unit for laser cutting the silicon carbide tube. The method of continuous and coherent multi-segment laser cutting of the silicon carbide tube adopted by the present invention is different from the traditional feeding laser cutting method. It can not only reduce the time required for repeated positioning and improve the overall laser cutting efficiency, but also ensure that the laser cutting points and fixed support points between different silicon carbide tube segments remain the same, which helps to improve the consistency and accuracy of laser cutting between silicon carbide tube segments. In addition, the present invention can flexibly adjust the position of the fixing component and the clamping component by adjusting the component to meet the fixing and laser cutting requirements of silicon carbide tubes of different lengths, and has a high degree of applicability.

Description

Technical Field

[0001] The invention relates to the technical field of silicon carbide laser cutting processing, in particular to a silicon carbide laser forming processing system. Background Art

[0002] Silicon carbide is a ceramic material with high hardness, high wear resistance, good thermal stability and chemical inertness. Due to its excellent physical and chemical properties, it can be made into products of various shapes, such as silicon carbide tubes; silicon carbide tubes have excellent properties such as high hardness, high melting point, high thermal conductivity, and wear resistance, and are widely used in the chemical industry, metallurgical industry and other fields. The length of standard produced silicon carbide tubes may not meet the requirements of the final application, so they need to be cut to the required size specifications. Common silicon carbide tube cutting methods include laser cutting, water jet cutting, etc.

[0003] However, the following problems still exist in the laser cutting process of silicon carbide tubes: (1) Laser cutting is commonly performed by feeding laser cutting, which requires repeated positioning of the silicon carbide tube, is time-consuming, has low consistency, and is difficult to ensure the consistency and accuracy of the laser cutting position of each silicon carbide tube segment. The laser cutting accuracy and efficiency need to be improved.

[0004] (2) During laser cutting, the silicon carbide tube is prone to shaking or shifting left and right, which affects the laser cutting quality and accuracy. At the same time, the laser cutting position of the silicon carbide tube lacks bottom support and is prone to deformation when subjected to laser cutting force, resulting in reduced quality of the laser cutting surface.

[0005] Therefore, in order to solve the problems existing in the laser cutting process of silicon carbide tubes, the present invention provides a silicon carbide laser forming processing system. Summary of the invention

[0006] The present invention provides a silicon carbide laser forming processing system, comprising a processing table, wherein the upper end of the processing table is provided with a fixing unit for fixing the silicon carbide tube and a laser cutting unit for laser cutting the silicon carbide tube; the fixing unit comprises a mounting groove opened at the upper end of the processing table, and the upper end of the mounting groove is provided with two limit plates arranged on the left and right, a circular hole for the silicon carbide tube to pass through is opened on the right limit plate, and a clamping and rotating mechanism for driving the silicon carbide tube to rotate is arranged on the right side of the limit plate, and a plurality of groups of fixing components evenly arranged on the left and right are arranged between the left and right limit plates, and the fixing components comprise a middle block arranged in the mounting groove, and mounting blocks are arranged on both the left and right sides of the middle block, and an electric push rod is installed on the upper end of the mounting block, and a supporting block is installed on the upper end of the pushing end of the electric push rod, except for the fixing components on the rightmost side. Except for the supporting block located on the right side, the lower ends of the right sides of the other supporting blocks are all provided with auxiliary plates; the upper ends of the supporting blocks are all provided with clamping assemblies, and the clamping assemblies include arc-shaped clamping plates symmetrically arranged front and back on the upper ends of the supporting blocks, and the upper end of the processing table is provided with an adjustment assembly for adjusting the position of the clamping assembly and a driving assembly for driving the front and rear arc-shaped clamping plates in different clamping assemblies to move toward each other synchronously; the laser cutting unit includes two transverse guide rails installed on the upper end of the processing table and arranged front and rear about the mounting grooves, an electric skateboard is slidably installed on the upper end of the transverse guide rails, an inverted frame is installed between the upper ends of the front and rear electric skateboards, a top plate is arranged below the horizontal section of the inverted frame, a hydraulic cylinder with a pushing end fixedly connected to the top plate is installed on the horizontal section of the inverted frame, and an automatic laser cutting machine is arranged at the lower end of the top plate.

[0007] In one possible implementation, the clamping assembly also includes a sliding groove symmetrically opened at the upper end of the supporting block, a control plate is slidably installed in the sliding groove, a movable plate slidably connected to the upper end of the supporting block is installed on the upper end of the control plate, an arc-shaped clamping plate is installed on the side close to the front and rear movable plates, an elastic rubber pad is installed on the inner side of the arc-shaped clamping plate, a bidirectional screw threadedly connected to the control plate is rotatably installed in the sliding groove, and a gear is installed after the bidirectional screw rotates through the front end of the supporting block.

[0008] In one possible implementation, the drive assembly includes a rack meshing on the left side of the gear in each clamping assembly, a connecting plate slidably connected to the corresponding rack is installed at the front end of the left side of the supporting block, the rack is slidably installed on the upper end of the same horizontal plate, the horizontal plate is slidably installed between two left and right vertical guide rails fixedly connected to the processing table, and an electric slider fixedly connected to the upper end surface of the horizontal plate is slidably installed on the vertical guide rail.

[0009] In one possible implementation, a rectangular groove is provided at the upper end of the support block, which is located between the two front and rear sliding grooves and above the corresponding bidirectional screw. A placement block is installed in the rectangular groove for up and down sliding. An arc-shaped groove is provided at the upper end of the placement block. Connecting springs evenly arranged on the left and right are connected between the placement block and the bottom wall of the rectangular groove.

[0010] In one possible implementation, the adjustment component includes a bidirectional threaded telescopic rod, a mounting block and a mounting groove that are slidably connected left and right, a bidirectional threaded telescopic rod is installed on the middle block in the same fixed component, and the left and right telescopic ends of the bidirectional threaded telescopic rod are rotatably connected to the corresponding mounting blocks, and a scale plate that is located above the processing table and is symmetrical on the left and right is installed at the rear end of the middle block.

[0011] In one possible implementation, the adjustment assembly also includes a side plate, the middle block is slidably connected to the mounting groove left and right, the side plate is installed at the front end of the middle block, the upper end of the processing table is provided with threaded holes located in front of the mounting groove and evenly arranged left and right, and the side plate is rotatably installed with bolts threadedly connected to the corresponding threaded holes.

[0012] In one possible implementation, the lower ends of the left and right limit plates that are away from each other are both equipped with positioning plates that are slidably connected to the mounting grooves. The bottom walls of the mounting grooves corresponding to the positions of the positioning plates are provided with square holes evenly distributed on the left and right sides. The positioning plates are plugged into the corresponding square holes through square rods.

[0013] In one possible implementation, a support plate is installed at the lower left end of the supporting block corresponding to the auxiliary plate, a threaded telescopic column with a telescopic end rotatably connected to the corresponding auxiliary plate is installed on the front side of the right end of the support plate, and a guide telescopic column with a telescopic end fixedly connected to the auxiliary plate is installed on the rear side of the right end of the support plate, and the electric push rod is located between the threaded telescopic column and the guide telescopic column.

[0014] In a possible implementation, an elastic telescopic rod is installed in the middle of the front side of the auxiliary plate, a ball is rollingly installed at the front end of the telescopic end of the elastic telescopic rod, and a slot matching the ball is opened on the front vertical section of the inverted frame.

[0015] In a possible implementation, rollers evenly arranged up and down are rotatably installed on the right side of the auxiliary plate, and arc-shaped support plates are installed on the upper end of the side where the left and right limit plates are close to each other and the lower end of the right side of the auxiliary plate.

[0016] Beneficial effects of the present invention: 1. The method of continuously and coherently performing multi-segment laser cutting on silicon carbide tubes adopted by the present invention is different from the traditional feeding laser cutting method. It can not only reduce the time required for repeated positioning and improve the overall laser cutting efficiency, but also ensure that the laser cutting points between different silicon carbide tube segments remain the same as the fixed support points, which helps to improve the consistency and accuracy of laser cutting between silicon carbide tube segments. In addition, the present invention can flexibly adjust the position of the fixing component and the clamping component by adjusting the component to meet the fixing and laser cutting requirements of silicon carbide tubes of different lengths, and has a high degree of applicability.

[0017] 2. The fixing unit adopted in the present invention can not only clamp and fix the silicon carbide tube synchronously and evenly at multiple points to ensure that the silicon carbide tube remains stable during the laser cutting process to avoid vibration and deviation, but also use the clamping assembly to provide stable support on both sides of the laser cutting point to prevent the silicon carbide tube from deforming or shaking when subjected to the laser cutting force, thereby ensuring the quality of the laser cutting surface, thereby improving the overall laser cutting quality and the consistency of the laser cutting effect at different points. In addition, whether before or after laser cutting, the present invention can provide limited support for the end of the silicon carbide tube that has not been laser cut, effectively avoiding the movement of the silicon carbide tube in the left and right directions during laser cutting, which causes deviations in the laser cutting point, thereby improving the laser cutting accuracy.

[0018] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a silicon carbide laser forming processing system provided by an embodiment of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing unit of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the laser cutting unit and the adjustment assembly of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the threaded telescopic column, the guide telescopic column and the auxiliary plate of the present invention.

[0026] In the figure: 1, processing table; 2, fixing unit; 21, mounting groove; 211, middle block; 212, mounting block; 213, electric push rod; 214, supporting block; 215, auxiliary plate; 216, roller; 217, arc support plate; 218, elastic telescopic rod; 219, ball; 22, limit plate; 221, sliding groove; 222, moving plate; 223, arc clamping plate; 224, bidirectional screw; 225, gear; 226, placement block; 227, connecting elastic Spring; 228, rack; 229, connecting plate; 230, two-way threaded telescopic rod; 231, horizontal plate; 232, vertical guide rail; 233, scale plate; 234, threaded hole; 235, side plate; 236, positioning plate; 237, square hole; 238, square rod; 241, threaded telescopic column; 242, guide telescopic column; 3, laser cutting unit; 31, horizontal guide rail; 32, electric skateboard; 33, inverted frame; 34, hydraulic cylinder; 35, automatic laser cutting machine. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] See also Figure 1 A silicon carbide laser forming processing system includes a processing table 1, and a fixing unit 2 for fixing a silicon carbide tube and a laser cutting unit 3 for laser cutting the silicon carbide tube are arranged on the upper end of the processing table 1.

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6The fixing unit 2 includes a mounting groove 21 provided at the upper end of the processing table 1, and two limit plates 22 arranged on the left and right are provided on the upper end of the mounting groove 21. A circular hole for the silicon carbide tube to pass through is provided on the right limit plate 22, and a clamping mechanism for driving the silicon carbide tube to rotate is provided on the right side of the limit plate 22. A plurality of fixed components evenly arranged on the left and right are provided between the left and right limit plates 22. The fixed components include an intermediate block 211 provided inside the mounting groove 21, and mounting blocks 212 are provided on both the left and right sides of the intermediate block 211. An electric push rod 213 is installed on the upper end of the mounting block 212. The electric push rod A support block 214 is installed on the upper end of the push end of 213. Except for the support block 214 on the right side in the rightmost fixed assembly, the lower ends of the right sides of the other support blocks 214 are all provided with auxiliary plates 215. The right side of the auxiliary plate 215 is rotatably installed with rollers 216 evenly arranged up and down. The upper end of the side where the left and right limit plates 22 are close to each other and the lower end of the right side of the auxiliary plate 215 are both installed with arc-shaped support plates 217. An elastic telescopic rod 218 is installed in the middle of the front side of the auxiliary plate 215. The front end of the telescopic end of the elastic telescopic rod 218 is rollingly installed with a ball 219. A clamping assembly is provided on the upper end of the support block 214. The clamping mechanism includes a side motor installed at the right end of the right limit plate 22 and a chuck installed on the output shaft of the side motor for clamping the silicon carbide tube.

[0030] See also Figure 2-Figure 6 The clamping assembly includes a sliding groove 221 symmetrically opened on the upper end of the supporting block 214, a control board is slidably installed in the sliding groove 221, a moving plate 222 is installed on the upper end of the supporting block 214 for front and rear sliding connection, an arc-shaped clamping plate 223 is installed on the side close to the front and rear moving plates 222, an elastic rubber pad is installed on the inner side of the arc-shaped clamping plate 223, a bidirectional screw 224 threadedly connected to the control board is rotatably installed in the sliding groove 221, and a gear 225 is installed after the bidirectional screw 224 rotates and passes through the front end of the supporting block 214.

[0031] See also Figure 5 A rectangular groove is provided at the upper end of the supporting block 214, which is located between the front and rear sliding grooves 221 and above the corresponding bidirectional screw 224. A placement block 226 is installed in the rectangular groove for up and down sliding. An arc groove is provided at the upper end of the placement block 226. Connecting springs 227 evenly arranged on the left and right are connected between the placement block 226 and the bottom wall of the rectangular groove.

[0032] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The upper end of the processing table 1 is provided with an adjustment component for adjusting the position of the clamping component and a driving component for driving the front and rear arc-shaped clamping plates 223 in different clamping components to move synchronously toward each other. The driving component includes a rack 228 meshing on the left side of the gear 225 in each clamping component. A connecting plate 229 connected to the corresponding rack 228 for vertical sliding connection is installed at the front end of the left side of the supporting block 214. The rack 228 is installed on the upper end of the same horizontal plate 231 for horizontal sliding. The horizontal plate 231 is installed between two left and right vertical guide rails 232 fixedly connected to the processing table 1 for vertical sliding. An electric slider fixedly connected to the upper end surface of the horizontal plate 231 is slidably installed on the vertical guide rail 232.

[0033] During operation: first, the silicon carbide tube to be laser cut needs to be placed horizontally between the left and right limit plates 22. The right end of the silicon carbide tube passes through the circular hole and is clamped and fixed by a chuck, and the left and right ends of the silicon carbide tube are respectively placed on corresponding arc-shaped support plates 217. The limit plates 22 can limit the ends of the silicon carbide tube to prevent the silicon carbide tube from moving in the left and right directions during laser cutting and affecting the laser cutting accuracy and laser cutting quality. The arc-shaped support plate 217 can provide an accurate placement position for the silicon carbide tube, and can also provide a stable supporting force for the end of the silicon carbide tube, increase the fulcrum of the silicon carbide tube, and thus improve the stability of the silicon carbide tube during laser cutting.

[0034] In the initial state, the placement block 226 is located above the rectangular groove under the action of the connecting spring 227. Before the end of the silicon carbide tube contacts the arc-shaped support plate 217, the placement block 226 on each supporting block 214 first contacts the silicon carbide tube through the arc-shaped groove. The arc-shaped groove can pre-correct the placement position of the silicon carbide tube to avoid the silicon carbide tube from being skewed during placement and affecting subsequent clamping. When the silicon carbide tube is placed on the placement block 226, the placement block 226 moves downward along the rectangular groove by compressing the connecting spring 227. At this time, only the arc-shaped groove part of the placement block 226 is located above the supporting block 214, and the silicon carbide tube just contacts the upper end surface of the supporting block 214. It should be noted that the elastic force of the connecting spring 227 is less than the gravity of the silicon carbide tube.

[0035] Next, the stably placed silicon carbide tube can be clamped and fixed. In this process, the electric sliders on the left and right sides can drive the cross plate 231 to move upward along the corresponding vertical guide rails 232, and the cross plate 231 drives multiple racks 228 to move upward along the corresponding connecting plate 229 synchronously. The gear 225 rotates clockwise synchronously with the corresponding rack 228, and the gear 225 drives the control plates on the front and rear sides to move synchronously along the corresponding sliding grooves 221 through the bidirectional screw 224. The control plate drives the moving plate 222, the arc-shaped clamping plate 223 and the elastic rubber pad to move synchronously until the arc-shaped clamping plates 223 on the front and rear sides simultaneously press against the silicon carbide tube through the corresponding elastic rubber pad, so as to complete the clamping and fixing of the silicon carbide tube. The rubber pad can not only prevent excessive clamping force from damaging the silicon carbide tube, but also help to increase the friction between the arc clamping plate 223 and the silicon carbide tube, thereby improving the stability of the silicon carbide tube. In addition, the clamping components at different positions clamp the silicon carbide tube at the same time, and multi-point clamping of the silicon carbide tube is implemented while ensuring the clamping efficiency, further increasing the stability of the silicon carbide tube. At the same time, the two adjacent clamping components on the left and right are just located on both sides of the laser cutting point of the silicon carbide tube. The clamping components are used to clamp and bottom support the silicon carbide tube section near the laser cutting point, which is beneficial to improve the stability of the silicon carbide tube during laser cutting, prevent the silicon carbide tube from shaking or deforming during laser cutting, thereby improving the laser cutting quality of the silicon carbide tube.

[0036] See also Figure 1 , Figure 3 and Figure 6 The laser cutting unit 3 includes two transverse guide rails 31 installed on the upper end of the processing table 1 and arranged front and rear about the installation groove 21. An electric slide 32 is slidably installed on the upper end of the transverse guide rail 31. An inverted frame 33 is installed between the upper ends of the front and rear electric slides 32. A card slot matching the ball 219 is opened on the front vertical section of the inverted frame 33. A top plate is arranged below the horizontal section of the inverted frame 33. A hydraulic cylinder 34 with a push end fixedly connected to the top plate is installed on the horizontal section of the inverted frame 33. An automatic laser cutting machine 35 is arranged at the lower end of the top plate. The automatic laser cutting machine 35 is an existing laser cutting equipment.

[0037] During operation: after the silicon carbide tube is fixed, the electric slides 32 on the front and rear sides can be used to drive the inverted frame 33 to move from left to right along the transverse guide rails 31, and the inverted frame 33 drives the hydraulic cylinder 34, the top plate and the automatic laser cutting machine 35 to move left synchronously until the automatic laser cutting machine 35 moves to the first designated laser cutting position, that is, between the upper ends of the left and right clamping components in the leftmost fixed component. In this process, the vertical section on the front side of the inverted frame 33 gradually aligns with the roller on the elastic telescopic column on the front side of the corresponding auxiliary plate 215. The balls 219 collide with each other, and the ball 219 is subjected to the resistance pressure to cause the elastic telescopic column to shrink synchronously. As the inverted frame 33 moves to the right, the ball 219 is clamped into the groove on the vertical section on the front side of the inverted frame 33 under the action of the elastic telescopic column. The movement of the inverted frame 33 can be limited by the cooperation between the groove and the ball 219. The automatic laser cutting machine 35 can accurately move to the required laser cutting position with the inverted frame 33, thereby improving the laser cutting accuracy of the subsequent automatic laser cutting machine 35 laser cutting the silicon carbide tube.

[0038] Subsequently, the top plate and the automatic laser cutting machine 35 can be pushed downward by the hydraulic cylinder 34. After approaching the silicon carbide tube, the automatic laser cutting machine 35 starts working. At the same time, the side motor drives the silicon carbide tube to rotate through the chuck until the automatic laser cutting machine 35 completes the laser cutting of the silicon carbide tube. Then, the top plate and the automatic laser cutting machine 35 can be driven upward and reset by the hydraulic cylinder 34, and the inverted frame 33, the hydraulic cylinder 34, the top plate and the automatic laser cutting machine 35 can be driven to move to the next laser cutting position by the electric slide 32. At the same time, the supporting block 214 can be pushed upward by the electric push rod 213 located on the far left. The supporting block 214 drives the clamping assembly and the laser-cut silicon carbide tube segment to move upward synchronously. During this process, the connecting plate 229 moves upward along the rack 228, and the rack 228 remains stationary. The gear 225 that moves upward with the supporting block 214 meshes with the rack 228 and rotates counterclockwise. The bidirectional screw 224 rotates counterclockwise synchronously with the gear 225, and drives the control plates, movable plates 222 and arc-shaped clamping plates 223 on the front and rear sides to move synchronously in the opposite direction away from the laser-cut silicon carbide tube segment until the clamping assembly completely releases the clamping fixation of the silicon carbide tube segment, and then the laser-cut silicon carbide tube segment can be removed.

[0039] During the upward movement of the supporting block 214, the auxiliary plate 215 moves upward synchronously with the supporting block 214 to gradually fit the cross-section of the remaining silicon carbide tube after laser cutting, and the elastic telescopic rod 218 drives the ball 219 to move upward synchronously. While the auxiliary plate 215 moves upward, it rolls with the cross-section of the remaining silicon carbide tube through the roller 216 to reduce the friction between the auxiliary plate 215 and the silicon carbide tube. When the clamping assembly releases the clamping of the silicon carbide tube section, the arc-shaped support plate 217 at the lower end of the auxiliary plate 215 just moves upward and contacts with the cross-section of the remaining silicon carbide tube (that is, the left end of the silicon carbide tube at this time) to support the left end of the silicon carbide tube.

[0040] When the automatic laser cutting machine 35 moves to the next laser cutting point, the automatic laser cutting machine 35 is just located between the upper ends of the left and right adjacent clamping assemblies in the next fixed assembly. At this time, the vertical section on the front side of the inverted frame 33 is again engaged with the ball 219 on the elastic telescopic rod 218 on the front side of the corresponding auxiliary plate 215 through the slot in the same way. Then, the laser cutting of the silicon carbide tube can be completed again in the same way, the support block 214 is moved up to release the clamping of the silicon carbide tube segment after laser cutting by the clamping assembly, and the corresponding auxiliary plate 215 performs limit support on the left end of the silicon carbide tube again. Subsequently, by analogy, the laser cutting points of the silicon carbide tube are laser cut from left to right in turn until the silicon carbide tube is laser cut into several sections. By performing continuous multi-segment laser cutting on the silicon carbide tube, it is not only beneficial to improve the overall efficiency of laser cutting, but also to ensure the consistency of laser cutting between each silicon carbide tube segment.

[0041] See also Figure 2 , Figure 3 and Figure 4 The adjustment assembly includes a bidirectional threaded telescopic rod 230, the mounting block 212 and the middle block 211 are both slidably connected to the mounting groove 21 left and right, the middle block 211 in the same fixed assembly is installed with a bidirectional threaded telescopic rod 230, the left and right telescopic ends of the bidirectional threaded telescopic rod 230 are both rotatably connected to the corresponding mounting block 212, the rear end of the middle block 211 is installed with a scale plate 233 located above the processing table 1 and symmetrical on the left and right, the front end of the middle block 211 is installed with a side plate 235, the upper end of the processing table 1 is provided with threaded holes 234 located on the front side of the mounting groove 21 and evenly arranged on the left and right, and bolts threadedly connected to the corresponding threaded holes 234 are rotatably installed on the side plate 235.

[0042] See also Figure 2 , Figure 3 , Figure 4 and Figure 6 The lower ends of the left and right limit plates 22 that are away from each other are both equipped with positioning plates 236 that are slidably connected to the mounting groove 21. The bottom wall of the mounting groove 21 corresponding to the positioning plates 236 is provided with square holes 237 that are evenly arranged on the left and right sides. The positioning plates 236 are plugged into the corresponding square holes 237 through square rods 238. The lower ends of the left sides of the supporting blocks 214 corresponding to the auxiliary plates 215 are both equipped with support plates. The front side of the right end of the support plate is equipped with a threaded telescopic column 241 that is rotatably connected to the corresponding auxiliary plate 215. The rear side of the right end of the support plate is equipped with a guide telescopic column 242 that is fixedly connected to the auxiliary plate 215 at the telescopic end. The electric push rod 213 is located between the threaded telescopic column 241 and the guide telescopic column 242.

[0043] See also Figure 1-Figure 6During operation: when the overall length of the silicon carbide tube changes, the positioning plates 236 on the left and right sides can be moved synchronously toward or in the opposite directions along the installation groove 21, and the limiting plate 22 moves synchronously with the corresponding positioning plate 236. After the limiting plate 22 moves to a suitable position, the positioning plate 236 and the limiting plate 22 can be fixed in the installation groove 21 through the cooperation between the square rod 238 and the square hole 237, so that the limiting plate 22 can limit silicon carbide tubes of different lengths.

[0044] When silicon carbide tube segments of different lengths are required, the laser cutting point position of the silicon carbide tube needs to be adjusted synchronously. During this process, the middle block 211 can be moved left and right along the installation groove 21 to a suitable position. The middle block 211 drives the installation blocks 212 on its left and right sides to move synchronously with the clamping assembly. Then the side plate 235 can fix the middle block 211 in the installation groove 21 through the cooperation between the bolts and the threaded holes 234, thus completing the adjustment of the position of the fixed assembly.

[0045] In addition, it is necessary to rotate the left and right telescopic ends of the bidirectional threaded telescopic rod 230 to make the mounting blocks 212 on the left and right sides of the middle block 211 move synchronously toward or in the opposite directions along the mounting groove 21. The mounting blocks 212 drive the supporting blocks 214 to move synchronously with the clamping assembly through the electric push rod 213 to change the clamping point position of the clamping assembly on the silicon carbide tube, so that the clamping assembly can stably clamp the silicon carbide tube section after laser cutting in the center, and the positions of the two clamping assemblies in the same fixed assembly need to be kept symmetrical so that the clamping assembly can be used for different laser cutting. The silicon carbide tube of required length can be effectively clamped, fixed and supported. During this process, the left and right scale plates 233 on the rear side of the middle block 211 can be compared to ensure the consistency of the position adjustment of the left and right mounting blocks 212, thereby improving the accuracy and stability of the clamping assembly clamping the silicon carbide tube. In the process of adjusting the position of the fixing assembly or the clamping assembly, the supporting block 214 can drive the corresponding rack 228 to move synchronously in the left and right directions along the cross plate 231 through the connecting plate 229, and the rack 228 always keeps meshing with the corresponding gear 225.

[0046] When the laser cutting position of the silicon carbide tube changes, in order to ensure that the auxiliary plate 215 can always be limited and supported with the end of the silicon carbide tube after laser cutting, the position of the auxiliary plate 215 can be adjusted accordingly. At this time, the threaded telescopic column 241 can be rotated to move the auxiliary plate 215 left and right, and the guide telescopic column 242 can be synchronously extended and retracted with the movement of the auxiliary plate 215. The auxiliary plate 215 drives the elastic telescopic rod 218 and the arc-shaped support plate 217 to move synchronously, ensuring that the auxiliary plate 215 can fit with the end of the silicon carbide tube after subsequent laser cutting, that is, the adjustment of the position of the auxiliary plate 215 is completed, and the adjustment of the limit position of the elastic telescopic rod 218 and the ball 219 on the inverted frame 33 is also completed synchronously.

[0047] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A silicon carbide laser forming processing system, comprising a processing table (1), characterized in that: The upper end of the processing table (1) is provided with a fixing unit (2) for fixing the silicon carbide tube and a laser cutting unit (3) for laser cutting the silicon carbide tube; The fixing unit (2) comprises a mounting groove (21) provided at the upper end of the processing table (1), two limit plates (22) arranged on the left and right are provided at the upper end of the mounting groove (21), a circular hole for the silicon carbide tube to pass through is provided on the right limit plate (22), and a clamping and rotating mechanism for driving the silicon carbide tube to rotate is provided on the right side of the limit plate (22), and a plurality of groups of fixing components evenly arranged on the left and right are provided between the left and right limit plates (22), the fixing components comprising an intermediate block (211) provided inside the mounting groove (21), mounting blocks (212) being provided on both the left and right sides of the intermediate block (211), an electric push rod (213) being provided on the upper end of the mounting block (212), a supporting block (214) being provided on the upper end of the pushing end of the electric push rod (213), and auxiliary plates (215) being provided on the lower ends of the right sides of the remaining supporting blocks (214) except for the supporting block (214) located on the right side of the rightmost fixing component; The upper end of each of the supporting blocks (214) is provided with a clamping assembly, the clamping assembly comprising an arc-shaped clamping plate (223) symmetrically arranged on the upper end of the supporting block (214) in a front-to-back manner, and the upper end of the processing table (1) is provided with an adjustment assembly for adjusting the position of the clamping assembly and a driving assembly for driving the front and rear arc-shaped clamping plates (223) in different clamping assemblies to move synchronously towards each other; The laser cutting unit (3) comprises two transverse guide rails (31) mounted on the upper end of the processing table (1) and arranged front and rear about the mounting groove (21); an electric slide plate (32) is slidably mounted on the upper end of the transverse guide rail (31); an inverted shaped frame (33) is mounted between the upper ends of the front and rear electric slide plates (32); a top plate is arranged below the horizontal section of the inverted shaped frame (33); a hydraulic cylinder (34) whose push end is fixedly connected to the top plate is mounted on the horizontal section of the inverted shaped frame (33); and an automatic laser cutting machine (35) is arranged at the lower end of the top plate; The clamping assembly also includes a sliding groove (221) symmetrically arranged at the upper end of the supporting block (214), a control board is slidably installed in the sliding groove (221), a moving plate (222) connected to the upper end of the supporting block (214) in a front-to-rear sliding manner is installed on the upper end of the control board, an arc-shaped clamping plate (223) is installed on the side close to the front and rear moving plates (222), an elastic rubber pad is installed on the inner side of the arc-shaped clamping plate (223), a bidirectional screw (224) threadedly connected to the control board is rotatably installed in the sliding groove (221), and a gear (225) is installed after the bidirectional screw (224) rotates through the front end of the supporting block (214); The upper end of the support block (214) is provided with a rectangular groove located between the two front and rear sliding grooves (221) and above the corresponding bidirectional screw (224), a placement block (226) is installed in the rectangular groove for sliding up and down, an arc-shaped groove is provided at the upper end of the placement block (226), and connecting springs (227) evenly arranged on the left and right are connected between the placement block (226) and the bottom wall of the rectangular groove; The auxiliary plate (215) is provided with an elastic telescopic rod (218) in the middle of the front side, a ball (219) is rollably installed at the front end of the telescopic end of the elastic telescopic rod (218), and a slot matching the ball (219) is provided on the front vertical section of the inverted profile frame (33); The right side of the auxiliary plate (215) is rotatably mounted with rollers (216) evenly arranged up and down, and an arc-shaped support plate (217) is mounted on the upper end of the adjacent side of the left and right limit plates (22) and the lower end of the right side of the auxiliary plate (215).

2. A silicon carbide laser forming processing system according to claim 1, characterized in that: The driving assembly comprises a rack (228) meshed with the left side of the gear (225) in each clamping assembly, a connecting plate (229) slidably connected to the corresponding rack (228) is installed at the front end of the left side of the supporting block (214), the rack (228) is slidably installed on the upper end of the same horizontal plate (231), the horizontal plate (231) is slidably installed between two left and right vertical guide rails (232) fixedly connected to the processing table (1), and an electric slider fixedly connected to the upper end surface of the horizontal plate (231) is slidably installed on the vertical guide rail (232).

3. The silicon carbide laser forming processing system according to claim 1, characterized in that: The adjustment assembly comprises a bidirectional threaded telescopic rod (230), a mounting block (212) and a mounting groove (21) connected to each other in a left-right sliding manner, a bidirectional threaded telescopic rod (230) is mounted on an intermediate block (211) in the same fixed assembly, left and right telescopic ends of the bidirectional threaded telescopic rod (230) are both rotatably connected to corresponding mounting blocks (212), and a scale plate (233) located above the processing table (1) and symmetrical to the left and right is mounted on the rear end of the intermediate block (211).

4. The silicon carbide laser forming processing system according to claim 1, characterized in that: The adjustment assembly further comprises a side plate (235), the middle block (211) is slidably connected to the mounting groove (21) in the left and right directions, the side plate (235) is mounted on the front end of the middle block (211), the upper end of the processing table (1) is provided with threaded holes (234) located in front of the mounting groove (21) and evenly arranged in the left and right directions, and bolts threadedly connected to the corresponding threaded holes (234) are rotatably mounted on the side plate (235).

5. The silicon carbide laser forming processing system according to claim 1, characterized in that: A positioning plate (236) is installed at the lower end of the side away from the limiting plates (22) on the left and right sides, and is slidably connected to the installation groove (21). The bottom wall of the installation groove (21) is provided with square holes (237) evenly arranged on the left and right at the position corresponding to the positioning plate (236). The positioning plate (236) is plugged into and matched with the corresponding square hole (237) through a square rod (238).

6. The silicon carbide laser forming processing system according to claim 1, characterized in that: A support plate is installed at the lower left end of the supporting block (214) corresponding to the auxiliary plate (215); a threaded telescopic column (241) whose telescopic end is rotatably connected to the corresponding auxiliary plate (215) is installed at the front side of the right end of the support plate; a guide telescopic column (242) whose telescopic end is fixedly connected to the auxiliary plate (215) is installed at the rear side of the right end of the support plate; and the electric push rod (213) is located between the threaded telescopic column (241) and the guide telescopic column (242).

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