Clamping and positioning device for elliptical tube laser cutting

Abstract

The application discloses an elliptical tube laser cutting clamping positioning device, which comprises a positioning table and a laser cutting assembly, and further comprises a stop module. The top of the positioning table is fixedly provided with a positioning plate. The top of the positioning table is provided with a clamping assembly. The top of the positioning table is provided with a clamping groove. The bottom of the clamping groove is provided with a clamping hole. The inner wall of the clamping hole is fixedly provided with a supporting rod. The circumferential surface of the supporting rod is slidably provided with a supporting plate. The left and right walls of the supporting plate are fixedly provided with supporting frames. The laser cutting assembly is arranged on the top of the positioning table. The stop module comprises an exhaust hole, a hollow rod, a thin-wall rod, an elastic telescopic block, a rubber block, a T-shaped plate and an anti-shaking plate. The supporting plate cannot be shaken horizontally due to the limitation of the anti-shaking plate. The elliptical workpiece cannot be shaken, and the machining hidden danger caused by cutting deviation can be avoided. The waste rate and the rework cost are effectively reduced. The application has the characteristics that the elliptical workpiece cannot be shaken during clamping machining.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser cutting, and particularly relates to an elliptical pipe laser cutting clamping and positioning device. BACKGROUND

[0002] The elliptical pipe laser cutting clamping and positioning device is generally composed of a positioning table, a clamping assembly, a protection assembly and a control assembly.

[0003] The patent with the patent publication number CN216858597U relates to a positioning and clamping device for laser welding, which comprises a base, a driving gear, a first screw rod, a limiting block and a limiter. The lower end of the outer surface of the base is connected with a handle, the inside of the base is provided with a first fixed rod, the handle and the first fixed rod are connected in a nested mode, the outer surface of the tail end of the handle is provided with the driving gear, the outer side of the driving gear is connected with a first driven gear, the inside of the base is provided with a second fixed rod, the driven gear is arranged on the second fixed rod, the inside of the base is provided with the first screw rod, the outer surface of the left side of the first screw rod is fixedly provided with a second driven gear, and the second driven gear and the first driven gear are connected. The patent is provided with the rotatable limiting block. When workpieces with different angles need to be processed, the limiting block will also rotate synchronously, the angle of the clamped workpiece is adjusted, and the demand for various processing workpieces is met.

[0004] In the above patent, the rotatable limiting block is arranged. When workpieces with different angles need to be processed, the limiting block will also rotate synchronously, the angle of the clamped workpiece is adjusted, and the demand for various processing workpieces is met. However, it is difficult to prevent the elliptical workpiece from shaking during laser processing. The shaking will cause the actual movement track of the elliptical pipe under the laser beam to be inconsistent with the programmed path, so that the cutting port is inclined, and large elliptical workpieces are difficult to unload after laser processing. Therefore, it is necessary to design an elliptical pipe laser cutting clamping and positioning device which is practical and can prevent the elliptical workpiece from shaking during clamping and processing. SUMMARY

[0005] The application aims to provide an elliptical pipe laser cutting clamping and positioning device to solve the problems in the background.

[0006] In order to solve the above technical problems, the application provides the following technical scheme: a clamping and positioning device for elliptical tube laser cutting, comprising a positioning table and a laser cutting assembly, further comprising a stop module, the top of the positioning table is fixedly provided with a positioning plate, the top of the positioning table is provided with a clamping assembly, the top of the positioning table is provided with a clamping groove, the bottom of the clamping groove is provided with a clamping hole, the inner wall of the clamping hole is fixedly provided with a support rod, the circumferential surface of the support rod is slidably provided with a support plate, the left and right walls of the support plate are fixedly provided with a support frame, and the laser cutting assembly is arranged on the top of the positioning table; the stop module comprises an exhaust hole, a hollow rod, a thin-wall rod, an elastic expansion block, a rubber block, a T-shaped plate and an anti-shaking plate, the hollow rod is fixedly arranged on the right side of the support frame, the thin-wall rod is fixedly arranged on the inner wall of the clamping hole, the left side of the thin-wall rod is slidably connected with the inner wall of the hollow rod, the exhaust hole is arranged on the circumferential surface of the hollow rod, the circumferential surface of the hollow rod is provided with a sealing hole, the elastic expansion block is fixedly arranged on the inner wall of the hollow rod, the rubber block is fixedly arranged on the free end of the elastic expansion block, the T-shaped plate is fixedly arranged on the output end of the clamping assembly, the anti-shaking plate is slidably arranged on the bottom of the inner wall of the clamping groove, a spring one is arranged between the support frame and the clamping hole, the support frame can be supported by the spring one, a spring two is arranged between the anti-shaking plate and the clamping groove, the anti-shaking plate can be supported by the spring two, and the support plate cannot be shaken transversely due to the limiting of the anti-shaking plate.

[0007] According to the above technical scheme, the clamping assembly penetrates through the front and rear walls of the positioning plate, the top of the support frame is provided with an elliptical workpiece, and the hollow rod can only move slowly, so that the support frame and the elliptical workpiece can only move slowly for discharging.

[0008] According to the above technical scheme, the rubber block is in contact with the sealing hole, the free end of the elastic expansion block is in contact with the elliptical workpiece, a sealing ring is arranged between the hollow rod and the thin-wall rod, the sealing property between the hollow rod and the thin-wall rod can be improved by the sealing ring, the hollow rod moves to the left side, external gas is drawn into the hollow rod through the exhaust hole and the sealing hole, and then the hollow rod and the support frame are quickly reset.

[0009] According to the technical scheme, the anti-bending module is used for preventing the two ends of the elliptical workpiece from being bent due to sagging caused by the overlength of the elliptical workpiece, and the anti-deformation module is used for preventing the cutting surface of the elliptical workpiece from being deformed.

[0010] According to the technical scheme, the anti-bending module further comprises a rubber plate and a protection block, the rubber plate is fixedly installed on the top of the anti-bending plate, and the protection block is fixedly installed on the top of the positioning table.

[0011] According to the technical scheme, the anti-bending module further comprises a rubber plate and a protection block, the rubber plate is fixedly installed on the top of the anti-bending plate, and the protection block is fixedly installed on the top of the positioning table.

[0012] According to the technical scheme, the anti-deformation module comprises a hollow plate, a connecting plate, a limiting plate, a limiting groove, an elastic telescopic rod, a protection groove and a mounting plate, the mounting plate is fixedly installed on the front side of the positioning plate, the hollow plate is fixedly installed on the front side of the mounting plate, the connecting plate is slidingly installed on the inner wall of the hollow plate, the limiting plate is slidingly installed on the inner wall of the hollow plate, the limiting groove is formed on the top of the limiting plate, the elastic telescopic rod is fixedly installed on the front side of the positioning plate, and the protection groove is formed on the circumferential surface of the output end of the clamping assembly.

[0013] According to the technical scheme, the right side of the connecting plate is provided as an inclined surface, a rubber ring is arranged between the hollow plate and the connecting plate, the sealing property between the hollow plate and the connecting plate can be improved through the rubber ring, a rubber ring is arranged between the hollow plate and the limiting plate, the sealing property between the hollow plate and the limiting plate can be improved through the rubber ring, and the free end of the elastic telescopic rod is sequentially pushed upwards to move away from the contact with the limiting groove and to release the limiting of the limiting plate.

[0014] According to the technical scheme, a spring three is arranged between the hollow plate and the connecting plate, the connecting plate can be supported through the spring three, a spring four is arranged between the hollow plate and the limiting plate, the limiting plate can be supported through the spring four, and the free end of the elastic telescopic rod is in contact with the limiting plate.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] (1) The present application prevents the oval workpiece from shaking and avoids processing risks caused by cutting deviation, effectively reduces the waste rate and rework cost, and the support frame and the oval workpiece can only move slowly for unloading, the operator can control the unloading state in real time, and intervene in abnormal conditions such as workpiece inclination in time, so as to avoid the overturning of the oval workpiece caused by rapid unloading, and the sliding unloading can reduce the carrying strength of the operator, the hollow rod moves to the left side through the exhaust hole and the sealing hole to draw external gas into the hollow rod, so that the hollow rod and the support frame are quickly reset, the support frame reset time is greatly shortened, the cycle period of oval workpiece clamping, cutting and unloading is accelerated, and the production capacity is significantly increased.

[0017] (2) The present application moves the rubber plate upward to contact the bottom of the oval workpiece and support the oval workpiece, thereby preventing the oval workpiece from being too long to cause the cutting area of the oval workpiece to be raised, and the rubber plate can effectively offset the sagging deformation of the workpiece caused by its own weight, avoiding processing deviation caused by workpiece posture deviation, thereby improving the consistency of the processing size of the oval workpiece.

[0018] (3) The present application deforms the protective block by extrusion of the moving plate, and the deformation of the protective block can reduce the impact force of the moving plate at the moment of collision, thereby avoiding deformation of the moving plate caused by rigid collision and reducing the failure and maintenance cost of the moving plate.

[0019] (4) The present application moves the limiting plate to the left side to contact the protection groove and limit the clamping assembly, and the limiting design can prevent the clamping assembly from loosening accidentally, thereby eliminating equipment damage or personnel injury accidents caused by loosening of the clamping assembly.

[0020] (5) The present application moves the free end of the elastic telescopic rod upward to move out of contact with the limiting groove and release the limiting of the limiting plate, and the elastic telescopic rod and the limiting groove cooperate to realize delayed picking, which can provide sufficient cooling time for the oval workpiece, thereby avoiding thermal stress concentration and deformation of the high-temperature oval workpiece caused by rapid disassembly. DETAILED DESCRIPTION

[0021] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, which together with the embodiments of the present application, serve to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the position structure of the positioning table and the positioning plate of the present application;

[0024] Figure 3 is a schematic diagram of the position structure of the A part of the present application; Figure 2

[0025] Figure 4 is a schematic diagram of the position structure of the elliptical workpiece and the positioning table of the present application;

[0026] Figure 5 is a schematic diagram of the position structure of the B part of the present application; Figure 4

[0027] Figure 6 is a schematic diagram of the position structure of the positioning plate and the clamping assembly of the present application;

[0028] Figure 7 is a schematic diagram of the position structure of the support rod and the support plate of the present application;

[0029] Figure 8 is a schematic diagram of the position structure of the hollow rod and the thin-walled rod of the present application.

[0030] In the figure: 1, positioning table; 2, positioning plate; 3, clamping assembly; 4, clamping groove; 5, clamping hole; 6, support rod; 7, support plate; 8, exhaust hole; 9, support frame; 10, elliptical workpiece; 11, hollow rod; 12, thin-walled rod; 13, elastic expansion block; 14, rubber block; 15, T-shaped plate; 16, anti-sway plate; 171, moving hole; 172, moving rod; 173, moving plate; 174, rubber plate; 175, anti-bending spring; 176, protective block; 177, anti-bending plate; 181, hollow plate; 182, connecting plate; 183, limiting plate; 184, limiting groove; 185, elastic expansion rod; 186, protection groove; 187, mounting plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. Embodiment one

[0032] Please refer to Figures 1-8 ​​The application provides a technical scheme: a clamping and positioning device for elliptical tube laser cutting, which comprises a positioning table 1 and a laser cutting assembly, further comprises a stop module, the positioning plate 2 is fixedly installed on the top of the positioning table 1, the clamping assembly 3 is arranged on the top of the positioning table 1, the clamping groove 4 is arranged on the top of the positioning table 1, the clamping hole 5 is arranged on the bottom of the clamping groove 4, the support rod 6 is fixedly installed on the inner wall of the clamping hole 5, the support plate 7 is slidably installed on the circumferential surface of the support rod 6, the support frame 9 is fixedly installed on the left and right walls of the support plate 7, and the laser cutting assembly is arranged on the top of the positioning table 1; the stop module comprises an exhaust hole 8, a hollow rod 11, a thin-wall rod 12, an elastic telescopic block 13, a rubber block 14, a T-shaped plate 15 and an anti-shaking plate 16, the hollow rod 11 is fixedly installed on the right side of the support frame 9, the thin-wall rod 12 is fixedly installed on the inner wall of the clamping hole 5, the left side of the thin-wall rod 12 is slidably connected with the inner wall of the hollow rod 11, the exhaust hole 8 is arranged on the circumferential surface of the hollow rod 11, the sealing hole is arranged on the circumferential surface of the hollow rod 11, the elastic telescopic block 13 is fixedly installed on the inner wall of the hollow rod 11, the rubber block 14 is fixedly installed on the free end of the elastic telescopic block 13, the T-shaped plate 15 is fixedly installed on the output end of the clamping assembly 3, the anti-shaking plate 16 is slidably installed on the bottom of the inner wall of the clamping groove 4, the spring one is arranged between the support frame 9 and the clamping hole 5, the support frame 9 can be supported through the spring one, the spring two is arranged between the anti-shaking plate 16 and the clamping groove 4, the machining hidden danger caused by cutting deviation can be avoided by preventing the elliptical workpiece 10 from shaking, and the waste rate and rework cost are effectively reduced.

[0033] The clamping assembly 3 penetrates through the front and rear walls of the positioning plate 2, the support frame 9 is provided with the elliptical workpiece 10 on the top, the hollow rod 11 can only move slowly, so that the support frame 9 and the elliptical workpiece 10 can only move slowly to be discharged, an operator can control the discharging state in real time, and can intervene in abnormal conditions such as inclination of the elliptical workpiece 10 in time, so that the elliptical workpiece 10 is prevented from overturning due to rapid discharging.

[0034] The rubber block 14 is in contact with the sealing hole, the free end of the elastic telescopic block 13 is in contact with the elliptical workpiece 10, the sealing ring is arranged between the hollow rod 11 and the thin-wall rod 12, the sealing property between the hollow rod 11 and the thin-wall rod 12 can be increased through the sealing ring, the external gas is drawn into the hollow rod 11 through the exhaust hole 8 and the sealing hole when the hollow rod 11 moves to the left side, and then the hollow rod 11 and the support frame 9 are quickly reset, the reset time of the support frame 9 is greatly shortened, the circulation period of the elliptical workpiece 10 can be accelerated, and then the production capacity is significantly increased.

[0035] In the working process of the embodiment, the elliptical workpiece 10 is placed on the top of the support frame 9. After the elliptical workpiece 10 is stably placed on the top of the support frame 9, the clamping assembly 3 is operated to move the output end of the clamping assembly 3 to the direction close to the elliptical workpiece 10. The clamping assembly 3 moves to the direction close to the elliptical workpiece 10 and contacts and clamps the elliptical workpiece 10. Meanwhile, the movement of the output end of the clamping assembly 3 to the direction close to the elliptical workpiece 10 drives the T-shaped plate 15 to move to the direction close to the elliptical workpiece 10. The T-shaped plate 15 moves to the direction close to the elliptical workpiece 10 and contacts and presses the anti-shaking plate 16. The anti-shaking plate 16 is pressed by the T-shaped plate 15 and moves to the direction close to the elliptical workpiece 10. The anti-shaking plate 16 moves to the direction close to the elliptical workpiece 10 and contacts and limits the support plate 7. The support plate 7 is limited by the anti-shaking plate 16 and cannot move horizontally. After the elliptical workpiece 10 is clamped stably by the clamping assembly 3, the laser cutting assembly is started to cut the elliptical workpiece 10. After the cutting of the elliptical workpiece 10 is completed, the elliptical workpiece 10 is manually pushed to move to the right side. The movement of the elliptical workpiece 10 to the right side drives the support frame 9 to move to the right side. The movement of the support frame 9 to the right side presses the spring one. The spring one is deformed and stores energy by the pressing of the support frame 9. Meanwhile, the movement of the support frame 9 to the right side drives the hollow rod 11 to move to the right side. The movement of the hollow rod 11 to the right side causes the thin-walled rod 12 to press the gas in the hollow rod 11. The gas in the hollow rod 11 can only slowly flow out through the exhaust hole 8 by the pressing of the thin-walled rod 12. The slow flow of the gas in the hollow rod 11 through the exhaust hole 8 causes the hollow rod 11 to move slowly. The slow movement of the hollow rod 11 causes the support frame 9 and the elliptical workpiece 10 to move slowly to discharge the material. After the elliptical workpiece 10 is taken off, the elliptical workpiece 10 is separated from the contact with the free end of the elastic expansion block 13. After the free end of the elastic expansion block 13 is separated from the contact with the elliptical workpiece 10, the free end of the elastic expansion block 13 moves upward to reset under the action of the elastic force of the elastic expansion block 13. The upward movement of the free end of the elastic expansion block 13 drives the rubber block 14 to move upward. The upward movement of the rubber block 14 separates the rubber block 14 from the contact with the sealing hole. The separation of the rubber block 14 from the contact with the sealing hole causes the gas in the hollow rod 11 to be discharged through the sealing hole. At this time, the support frame 9 is loosened and moves to the left side to reset under the action of the elastic force of the spring one. The movement of the support frame 9 to the left side drives the hollow rod 11 to move to the left side. The movement of the hollow rod 11 to the left side draws the external gas into the hollow rod 11 through the exhaust hole 8 and the sealing hole. Thus, the hollow rod 11 and the support frame 9 are quickly reset. Embodiment two

[0036] Please refer to Figures 1-8On the basis of embodiment one, the embodiment also includes a bending prevention module and a deformation prevention module, the bending prevention module is used for preventing the oval workpiece 10 from being too long to cause the oval workpiece 10 to sag and bend at both ends, and the deformation prevention module is used for preventing the cutting surface of the oval workpiece 10 from deforming, the bending prevention module includes a moving hole 171, a moving rod 172, a moving plate 173, a bending prevention spring 175, and a bending prevention plate 177, the moving hole 171 is arranged on the front side of the positioning plate 2, the moving rod 172 is fixedly installed on the inner wall of the moving hole 171, the moving plate 173 is slidingly installed on the circumferential surface of the moving rod 172, the bending prevention plate 177 is fixedly installed on the rear side of the moving plate 173, the bending prevention spring 175 is arranged between the bending prevention plate 177 and the clamping groove 4, the moving plate 173 moves upward to pull the bending prevention spring 175, the bending prevention spring 175 is deformed and stores energy under the pulling of the moving plate 173, after the moving plate 173 is separated from the contact with the anti-shaking plate 16, the moving plate 173 can be reset through the bending prevention spring 175, the rubber plate 174 can effectively offset the sagging deformation of the oval workpiece 10 caused by the weight, and the processing deviation caused by the attitude deviation of the oval workpiece 10 is avoided, so as to improve the processing size consistency of the oval workpiece 10.

[0037] The bending prevention module also includes a rubber plate 174 and a protection block 176, the rubber plate 174 is fixedly installed on the top of the bending prevention plate 177, and the protection block 176 is fixedly installed on the top of the positioning table 1, the protection block 176 has elasticity, the protection block 176 is deformed to assist in buffering the moving plate 173, the instantaneous impact force of the moving plate 173 can be reduced through the deformation of the protection block 176 and the auxiliary buffering of the moving plate 173, so as to avoid the deformation of the moving plate 173 caused by rigid impact and reduce the failure and maintenance cost of the moving plate 173.

[0038] The moving plate 173 is in contact with the anti-shaking plate 16, and the moving plate 173 is in contact with the protection block 176, the moving plate 173 can be buffered and protected through the contact between the moving plate 173 and the protection block 176, and the bending prevention plate 177 is in contact with the clamping groove 4.

[0039] The deformation prevention module includes a hollow plate 181, a link plate 182, a limiting plate 183, a limiting groove 184, an elastic telescopic rod 185, a protection groove 186, and a mounting plate 187, the mounting plate 187 is fixedly installed on the front side of the positioning plate 2, the hollow plate 181 is fixedly installed on the front side of the mounting plate 187, the link plate 182 is slidingly installed on the inner wall of the hollow plate 181, the limiting plate 183 is slidingly installed on the inner wall of the hollow plate 181, the limiting groove 184 is arranged on the top of the limiting plate 183, the elastic telescopic rod 185 is fixedly installed on the front side of the positioning plate 2, and the protection groove 186 is arranged on the circumferential surface of the output end of the clamping assembly 3, the accidental loosening of the clamping assembly 3 can be prevented through the limiting design, so as to eliminate the equipment damage or personnel injury accidents caused by the loosening of the clamping assembly 3.

[0040] The right side of the adapter plate 182 is provided as an inclined surface, a rubber ring is arranged between the hollow plate 181 and the adapter plate 182, and the sealing between the hollow plate 181 and the adapter plate 182 can be increased through the rubber ring. A rubber ring is arranged between the hollow plate 181 and the limiting plate 183, and the sealing between the hollow plate 181 and the limiting plate 183 can be increased through the rubber ring. The free end of the elastic expansion rod 185 is sequentially pushed upward to move out of contact with the limiting groove 184 and release the limiting of the limiting plate 183, and the elastic expansion rod 185 and the limiting groove 184 cooperate to realize the delay pickup, which can provide sufficient cooling time for the elliptical workpiece 10, thereby avoiding the heat stress concentration and deformation of the high-temperature elliptical workpiece 10 caused by rapid disassembly.

[0041] A spring three is arranged between the hollow plate 181 and the adapter plate 182, which can support the adapter plate 182. A spring four is arranged between the hollow plate 181 and the limiting plate 183, which can support the limiting plate 183. The free end of the elastic expansion rod 185 is in contact with the limiting plate 183.

[0042] When the present embodiment works, the anti-shaking plate 16 moves towards the direction close to the elliptical workpiece 10 and contacts and extrudes the moving plate 173. The moving plate 173 moves upward under the extrusion of the anti-shaking plate 16. The upward movement of the moving plate 173 drives the rubber plate 174 and the anti-bending plate 177 to move upward. The upward movement of the rubber plate 174 contacts the bottom of the elliptical workpiece 10 and supports the elliptical workpiece 10, thereby preventing the elliptical workpiece 10 from being too long to cause the elliptical workpiece 10 to be warped in the cutting area. When the anti-shaking plate 16 moves forward to reset under the elastic force of the spring two, the anti-shaking plate 16 moves forward to move out of contact with the moving plate 173. After the moving plate 173 moves out of contact with the anti-shaking plate 16, the moving plate 173 moves downward to reset under the elastic force of the anti-bending spring 175. The downward movement of the moving plate 173 contacts and extrudes the protection block 176. The protection block 176 is deformed under the extrusion of the moving plate 173, and the protection block 176 is deformed and assists in buffering the moving plate 173.

[0043] The mobile plate 173 moves upward and contacts the inclined surface of the adapter plate 182 and extrudes the adapter plate 182, the adapter plate 182 is extruded by the mobile plate 173 and moves to the left side, the adapter plate 182 moves to the left side and extrudes the spring three, the spring three is deformed and stores force by the extrusion of the adapter plate 182, and at the same time, the adapter plate 182 moves to the left side and extrudes the liquid in the hollow plate 181, the liquid in the hollow plate 181 is extruded by the adapter plate 182 and moves to the left side, the liquid in the hollow plate 181 moves to the left side and extrudes the limiting plate 183, the limiting plate 183 is extruded by the liquid in the hollow plate 181 and moves to the left side, the limiting plate 183 moves to the left side and pulls the spring four, the spring four is deformed and stores force by the pulling of the limiting plate 183, and at the same time, the limiting plate 183 moves to the left side and contacts the protection groove 186 and limits the clamping assembly 3, and at the same time, the limiting plate 183 moves to the left side and aligns the limiting groove 184 with the free end of the elastic telescopic rod 185, after the limiting groove 184 is aligned with the free end of the elastic telescopic rod 185, the free end of the elastic telescopic rod 185 moves downward under the action of the elastic force of the elastic telescopic rod 185, the free end of the elastic telescopic rod 185 moves downward and contacts the limiting groove 184 and limits the limiting plate 183, when the cut oval workpiece 10 needs to be taken down, the free end of the elastic telescopic rod 185 is pushed upward and moves out of the contact with the limiting groove 184 and releases the limiting of the limiting plate 183.

[0044] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0045] Finally, it should be noted that: the above is only a preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clamping and positioning device for laser cutting of elliptical tubes, comprising a positioning stage and a laser cutting assembly, characterized in that: It also includes a stop module, an anti-bending module, and an anti-deformation module. A positioning plate is fixedly installed on the top of the positioning platform. A clamping assembly is provided on the top of the positioning platform. A clamping groove is opened on the top of the positioning platform. A clamping hole is opened at the bottom of the clamping groove. A support rod is fixedly installed on the inner wall of the clamping hole. A support plate is slidably installed on the circumferential surface of the support rod. Support frames are fixedly installed on the left and right walls of the support plate. The laser cutting assembly is set on the top of the positioning platform. The stop module includes an exhaust port, a hollow rod, a thin-walled rod, an elastic telescopic block, a rubber block, a T-shaped plate, and an anti-sway plate. The hollow rod is fixedly installed on the right side of the support frame, the thin-walled rod is fixedly installed on the inner wall of the clamping hole, and the left side of the thin-walled rod is slidably connected to the inner wall of the hollow rod. The exhaust port is opened on the circumferential surface of the hollow rod, and a sealing hole is opened on the circumferential surface of the hollow rod. The elastic telescopic block is fixedly installed on the inner wall of the hollow rod, the rubber block is fixedly installed on the free end of the elastic telescopic block, the T-shaped plate is fixedly installed on the output end of the clamping assembly, and the anti-sway plate is slidably installed on the bottom of the inner wall of the clamping groove. A spring is provided between the support frame and the clamping hole, and a spring is provided between the anti-sway plate and the clamping groove. The anti-bending module includes a movable hole, a movable rod, a movable plate, an anti-bending spring, and an anti-bending plate. The movable hole is opened on the front side of the positioning plate. The movable rod is fixedly installed on the inner wall of the movable hole. The movable plate is slidably installed on the circumferential surface of the movable rod. The anti-bending plate is fixedly installed on the rear side of the movable plate. The anti-bending spring is disposed between the anti-bending plate and the clamping groove. The anti-bending module also includes a rubber plate and a protective block. The rubber plate is fixedly installed on the top of the anti-bending plate, and the protective block is fixedly installed on the top of the positioning platform. The protective block is elastic. The anti-deformation module includes a hollow plate, a connecting plate, a limiting plate, a limiting groove, an elastic telescopic rod, a protective groove, and a mounting plate. The mounting plate is fixedly installed on the front side of the positioning plate, the hollow plate is fixedly installed on the front side of the mounting plate, the connecting plate is slidably installed on the inner wall of the hollow plate, the limiting plate is slidably installed on the inner wall of the hollow plate, the limiting groove is formed on the top of the limiting plate, the elastic telescopic rod is fixedly installed on the front side of the positioning plate, and the protective groove is formed on the circumferential surface of the output end of the clamping assembly.

2. The clamping and positioning device for laser cutting of elliptical tubes according to claim 1, characterized in that: The clamping assembly penetrates the front and rear walls of the positioning plate. An elliptical workpiece is provided on the top of the support frame. The anti-bending module is used to prevent the elliptical workpiece from being too long and causing both ends of the elliptical workpiece to droop and bend. The anti-deformation module is used to prevent the cut surface of the elliptical workpiece from deforming.

3. The clamping and positioning device for laser cutting of elliptical tubes according to claim 2, characterized in that: The rubber block contacts the sealing hole, the free end of the elastic telescopic block abuts against the elliptical workpiece, and a sealing ring is provided between the hollow rod and the thin-walled rod.

4. The clamping and positioning device for laser cutting of elliptical tubes according to claim 3, characterized in that: The movable plate is in contact with the anti-sway plate, the movable plate is in contact with the protective block, and the anti-bending plate is in contact with the clamping groove.

5. The clamping and positioning device for laser cutting of elliptical tubes according to claim 4, characterized in that: The right side of the connecting plate is set as an inclined surface, a rubber ring is provided between the hollow plate and the connecting plate, and a rubber ring is provided between the hollow plate and the limiting plate.

6. The clamping and positioning device for laser cutting of elliptical tubes according to claim 5, characterized in that: A spring three is provided between the hollow plate and the connecting plate, and a spring four is provided between the hollow plate and the limiting plate. The free end of the elastic telescopic rod abuts against the limiting plate.

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