Long pipe material external thread laser processing equipment

Abstract

The invention relates to long pipe material external thread laser machining equipment, and relates to the field of laser machining equipment, the long pipe material external thread laser machining equipment comprises a rotary driving device, a rotary bearing device and a laser machining device, the rotary driving device comprises a rotary driving seat and a rotary tailstock, and the rotary driving seat and the rotary tailstock are both provided with conical chucks; the rotary driving seat and the rotary tailstock are arranged at the two ends of a long pipe correspondingly, the two ends of the long pipe can be clamped and positioned through the conical chuck, the rotary bearing device is arranged between the rotary driving seat and the rotary tailstock, and the laser machining device comprises a laser head moving seat, a laser machining head and a thread recognition device. The laser machining head is installed on the laser head moving seat and can move under the action of the laser head moving seat, the thread recognition device is fixed to the laser machining head and can guide the laser machining head to conduct laser machining on external threads, clamping of long pipe materials can be facilitated, and the laser machining effect is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of laser processing equipment, and in particular to a laser processing equipment for external threads of long tubes. Background Art

[0002] Laser processing refers to a processing method that uses a laser beam to irradiate the material to be processed according to the characteristics of the material to be processed, forming a high-power density laser spot, and then performs processing operations such as cutting, surface treatment, welding, marking and drilling on the material to be processed. Laser processing has the advantages of not requiring additional tools, fast processing speed, small surface deformation, and a wide variety of processable materials, and has been widely used in the field of material processing.

[0003] The oil drill pipe is a tubular structure made of a long steel pipe. One end of the oil drill pipe is provided with an external thread and the other end is provided with an internal thread. In the process of oil extraction, multiple oil drill pipes need to be connected to each other through the cooperation of external threads and internal threads to form a long drill pipe connected to the deep drilling depth. The oil drill pipe works in harsh working conditions with harsh environment and complex forces for most of the drilling cycle. In addition, the oil drill pipe rotates for a long time and is frequently raised and lowered, which easily leads to the wear and failure of the threads at the end of the oil drill pipe. It is usually necessary to strengthen the structure of the threads at the end of the oil drill pipe by laser quenching and other methods. When threading a long pipe such as an oil drill pipe, it is usually necessary to clamp the two ends of the long pipe to the rotary drive mechanism so that the pipe rotates slowly under the drive of the rotary drive mechanism. The laser processing head emits laser to irradiate the threads of the pipe, and the laser processing head feeds along the axial direction of the pipe as the pipe rotates to ensure that the laser is always irradiated on the threads, and the threads are laser processed.

[0004] Existing equipment for laser processing of long tubes usually requires manual clamping of the slender tube to the rotating drive mechanism. The clamping process is time-consuming and labor-intensive, and the clamping efficiency is poor. During the clamping process, manual work is also required to carefully locate the clamping position, ensure that the initial position of the laser spot is located at the starting point of the thread, and prevent the long tube from eccentrically swinging during rotation. The clamping effect is greatly affected by the operator's skills, and the effect of laser processing is difficult to guarantee. Summary of the invention

[0005] In order to facilitate the clamping of long tubes and ensure the effect of laser processing, the present application provides a long tube external thread laser processing equipment.

[0006] The long tube external thread laser processing equipment provided in this application adopts the following technical solutions: A laser processing device for external threads of long tube materials, comprising a rotary drive device, a rotary support device and a laser processing device, wherein the rotary drive device comprises a rotary drive seat and a rotary tail stock, wherein the rotary drive seat and the rotary tail stock are both provided with a conical chuck, wherein the rotary drive seat and the rotary tail stock are respectively arranged at both ends of the long tube material so as to be able to clamp and position the long tube material through the conical chuck, wherein the rotary support device is arranged between the rotary drive seat and the rotary tail stock, wherein the laser processing device comprises a laser head moving seat, a laser processing head and a thread identification device, wherein the laser processing head is installed on the laser head moving seat so as to be able to move under the action of the laser head moving seat, and wherein the thread identification device is fixed on the laser processing head so as to be able to guide the laser processing head to perform laser processing on the external threads.

[0007] By adopting the above technical solution, the long tube material is positioned from both ends of the long tube material by using the conical chucks of the rotary drive seat and the rotary tailstock, and the clamping and positioning of the long tube material can be conveniently realized through the inner holes at both ends of the long tube material, thereby improving the positioning effect of the long tube material. The rotary support device arranged between the rotary drive seat and the rotary tailstock can be supported in the middle of the long tube material, thereby improving the position stability of the long tube material during rotation. The thread recognition device fixed on the laser processing head can automatically identify the position of the external thread on the long tube material, thereby controlling the moving distance of the laser processing head to be synchronized with the rotation of the thread, ensuring that the laser spot is always irradiated on the thread, thereby improving the laser processing effect of the external thread.

[0008] In a specific possible implementation scheme, the long tube material external thread laser processing equipment of the present application also includes a rotating processing table, the rotating drive seat and the rotating tail stock are respectively arranged at the two end areas of the rotating processing table, and can slide relative to each other on the rotating processing table, the rotating supporting device is arranged on the rotating processing table between the rotating drive seat and the rotating tail stock, and the laser head moving seat is fixed at one end of the rotating processing table.

[0009] By adopting the above technical solution, the rotary drive seat and the rotary tailstock are relatively slid on the rotary processing table, so that the rotary drive seat and the rotary tailstock can approach the ends of the long tube material from both ends of the long tube material along the axial direction of the long tube material, respectively, to achieve the clamping and loosening of the long tube material, and improve the flexibility of the operation of the long tube material. By using the rotary support device arranged between the rotary drive seat and the rotary tailstock on the rotary processing table and the laser head moving seat arranged at the end of the rotary processing table, the position accuracy between the rotary support device and the laser processing head and the rotary drive seat and the rotary tailstock can be improved, which is conducive to improving the rotation stability of the long tube material and the laser processing accuracy of the laser processing head.

[0010] In a specific feasible implementation scheme, the rotating drive seat includes a driving seat body, a seat body moving mechanism, a driving seat reduction motor and a positioning driving head, the driving seat body is slidably arranged on the rotating processing table, the seat body moving mechanism is arranged between the driving seat body and the rotating processing table, so as to be able to drive the driving seat body to slide on the rotating processing table, the driving seat reduction motor is fixed on the driving seat body, and the positioning driving head is fixed on the output shaft of the driving seat reduction motor; the rotating tail stock includes a tail stock mounting plate, a tail stock walking mechanism, a tail stock slide, a positioning push rod and a push rod clamping device, the tail stock mounting plate is slidably arranged on the rotating processing table, the tail stock walking mechanism is arranged between the tail stock mounting plate and the rotating processing table, the tail stock slide is fixed on the tail stock mounting plate, the push rod clamping device is fixed on the tail stock slide, the push rod of the push rod clamping device is slidably connected with the tail stock slide, the positioning push rod is rotatably connected with the push rod of the push rod clamping device, and is coaxially arranged with the positioning driving head.

[0011] By adopting the above technical solution, the drive seat reduction motor is fixed on the drive seat body, which can drive the positioning drive head to rotate, thereby driving the long tube material to rotate, and at the same time, one end of the long tube material is clamped by the movement of the positioning drive head, and the conical chuck at the end of the positioning drive head is engaged in the inner hole of the end of the long tube material to ensure the precise positioning of one end of the long tube material. By fixing the tailstock slide on the tailstock mounting plate, and the push rod clamping device on the tailstock slide, the push rod of the push rod clamping device is slidably connected to the tailstock slide, and the positioning push rod is rotatably connected to the push rod of the push rod clamping device, the positioning push rod can be driven to clamp the other end of the long tube material by sliding the tailstock mounting plate on the rotating processing table and sliding between the push rod of the push rod clamping device and the tailstock slide, and the conical chuck at the end of the positioning push rod is engaged in the inner hole of the other end of the long tube material to ensure the precise positioning of the other end of the long tube material. By utilizing the coaxial setting between the positioning push rod and the positioning drive head, the two can be kept in a coaxial state during their movement, which is beneficial to ensure the coaxial clamping of both ends of the long tube and improve the position stability of the long tube during rotation.

[0012] In a specific feasible implementation scheme, the rotating support device includes a support plate, a height adjustment plate, a support wheel mounting seat and a positioning support wheel, the rotating support bracket is installed on the rotating processing table, the height adjustment plate is installed on the support plate and can adjust the installation height on the support plate, the support wheel mounting seat is fixed on the height adjustment plate, the positioning support wheel is rotatably mounted on the rotating support bracket, and is symmetrically arranged on both sides of the vertical plane where the rotation axis of the positioning drive head is located.

[0013] By adopting the above technical scheme, using the supporting wheel mounting seat installed on the height adjustment plate and the positioning supporting wheels rotatably installed at the symmetrical positions on both sides of the rotating axis of the positioning drive head, the middle part of the long tube material can be supported at a position coaxial with the positioning push rod and the positioning drive head, and stably rotated at the supporting position, thereby ensuring that the long tube material is in a coaxial stable rotation state as a whole, reducing the vibration of the long tube material during rotation, and improving the positioning accuracy of the long tube material.

[0014] In a specific possible implementation scheme, the laser head moving base includes a base, a column driving mechanism, a moving column, a sliding column driving mechanism, a horizontal sliding column and a laser head driving mechanism. The moving column is installed on the base and can slide laterally on the base when driven by the column driving mechanism. The horizontal sliding column is installed on the moving column and can slide vertically on the moving column when driven by the sliding column driving mechanism. The laser processing head is installed on the horizontal sliding column and can slide longitudinally on the horizontal sliding column when driven by the laser head driving mechanism.

[0015] By adopting the above technical solution, by utilizing the lateral sliding of the movable column on the base, the vertical sliding of the horizontal sliding column on the movable column and the longitudinal sliding of the laser processing head on the horizontal sliding column, a three-dimensional movement of the laser processing head above one end of the rotary processing table can be formed, which is conducive to the precise positioning of the laser processing head above one end of the long tube material.

[0016] In a specific possible implementation scheme, the long tube material external thread laser processing equipment of the present application also includes a loading rack, which is arranged on one side of the rotating processing table, and the top surface is inclined toward the direction of the rotating processing table. A tube material limiting plate is arranged on the side of the loading rack adjacent to the rotating processing table, and a loading device is arranged between the loading rack and the rotating processing table.

[0017] By adopting the above technical solution, the position of the long tube on the loading rack can be limited by the tube limiting plate, so that multiple long tubes can be placed on the loading rack, so that the next tube can be automatically loaded after the long tube on the rotary processing table is processed. By using the loading device arranged between the loading rack and the rotary processing table, a long tube can be transferred to the rotary processing table when needed, and automatically clamped and positioned by the rotary drive device.

[0018] In a specific feasible implementation scheme, the feeding device includes a feeding guide frame and a feeding pushing mechanism, the feeding guide frame is fixed on the side of the rotating support device adjacent to the feeding frame, the top surface of the tube material limiting plate is provided with a limiting groove, and the feeding pushing mechanism is fixed on the tube material limiting plate below the limiting groove so as to be able to push the long tube material in the limiting groove onto the feeding guide frame.

[0019] By adopting the above technical solution, using the feeding pushing mechanism arranged below the limit groove, the long tube material in the limit groove can be pushed out of the limit groove, rolled along the feeding guide frame to the rotating supporting device, and clamped and positioned by the rotating driving device.

[0020] In a specific feasible implementation scheme, the loading guide frame includes a loading frame fixing rod, a first guide rod and a second guide rod, the loading frame fixing rod is fixed on one side of the rotating support device, the first guide rod is fixed to the top of the loading frame fixing rod and is inclined downward toward the rotating support device, the second guide rod is fixed to the top of the loading frame fixing rod and is inclined upward toward the loading frame, extending to a position corresponding to the tube material limiting plate laterally, the loading pushing mechanism includes a loading pushing driving member and a loading pushing block, the loading pushing driving member is fixed on the tube material limiting plate, the loading pushing block is fixed on the pushing rod of the loading pushing driving member, and the top surface of the loading pushing block is set to be an inclined surface inclined toward the rotating processing table.

[0021] By adopting the above technical solution, the top surface of the loading ejector block tilted toward the rotating processing table can be used to guide the long tube material to move toward the rotating processing table after the long tube material is ejected out of the limiting groove, thereby transferring the long tube material to the second guide rod. The first guide rod and the second guide rod fixed on the top of the fixed rod of the loading rack can guide the long tube material to move smoothly toward the middle of the supporting rack, making it convenient for the rotary drive device to clamp and position the two ends of the long tube material.

[0022] In a specific feasible implementation scheme, a laser marking device is provided at the end of the feeding rack, and the laser marking device includes a marking mounting seat, a mounting seat slider, a slider driving mechanism and a laser marking head. The marking mounting seat is fixed on the feeding rack, the mounting seat slider is slidably connected to the marking mounting seat, and can slide on the marking mounting seat under the drive of the slider driving mechanism, and the laser marking head is rotatably connected to one end of the mounting seat slider adjacent to the pipe material limiting plate.

[0023] By adopting the above technical solution, the position and orientation of the laser marking head on the loading rack can be easily adjusted by utilizing the sliding of the mounting seat slider on the marking mounting seat and the rotation of the laser marking head on the mounting seat slider, so that the marking operation can be performed at the appropriate position of the end of the long tube material, and the long tube material can be marked.

[0024] In a specific feasible implementation scheme, the long tube material external thread laser processing equipment of the present application also includes a material receiving rack, which is arranged on the side of the rotating processing table, and the rotating processing table is also provided with a material unloading device, the material unloading device includes a material unloading guide rack and a material unloading pushing mechanism, the material unloading guide rack includes a material unloading vertical rod, a material unloading push rod and a material unloading inclined rod, the material unloading vertical rod is fixed on one side of the rotating supporting device, the material unloading push rod is fixed on the top of the material unloading vertical rod, one end of the material unloading inclined rod is hinged to the material unloading push rod, and the other end is supported on the material receiving rack, the material unloading pushing mechanism includes a material unloading pushing drive member and a material unloading push block, the material unloading push drive member is fixed on the rotating supporting device, the material unloading push block is fixed on the push rod of the material unloading push drive member, and the top surface of the material unloading push block is set to an inclined surface inclined in the direction of the material unloading push rod.

[0025] By adopting the above technical scheme, using the setting that the top surface of the unloading ejector block is inclined in the direction of the unloading ejector rod, the long tube material can be pushed out of the rotating supporting device under the drive of the unloading ejector drive member and guided to the unloading ejector rod. Then, the long tube material is guided by the unloading inclined rod to move smoothly to the material receiving rack, which facilitates the collection and transportation of the processed long tube material.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The conical chucks arranged on the rotary drive seat and the rotary tailstock can clamp the inner hole of the long tube from both ends of the long tube, and the positions of the two ends of the long tube are limited by the cooperation between the conical surface of the conical chuck and the inner hole of the long tube, so as to ensure that the long tube is coaxially clamped between the rotary drive seat and the rotary tailstock, and the long tube is driven to rotate by the rotary drive seat, so that the position stability of the long tube during the rotation process can be ensured without manually adjusting the clamping state of the long tube; 2. By arranging a rotating support device between the rotating drive seat and the rotating tailstock, a rotating support can be formed for the long tube material in the middle part, and the middle part of the long tube material is supported on the same rotating axis as the two ends, thereby improving the position stability of the long tube material during rotation, preventing eccentric rotation caused by local deformation of the middle part of the long tube material, and reducing the vibration of the long tube material during rotation; 3. The thread recognition device installed on the laser processing head can automatically identify the position of the external thread on the long tube material, thereby guiding the movement of the laser processing head and performing targeted laser processing on the position of the external thread on the long tube material, thereby ensuring the laser processing effect of the threaded part, reducing unnecessary processing of the area outside the thread, improving the laser processing efficiency of the external thread of the long tube material, and reducing the workload of the operator.

[0027] 4. By arranging a loading guide frame and a unloading guide frame on both sides of the rotating support device and arranging a unloading pushing mechanism on the rotating support device, automatic loading and unloading of long tubes can be performed, so that the loading, laser processing and unloading of long tubes can be automated, further improving the laser processing efficiency of the external threads of long tubes and ensuring the laser processing effect of the external threads. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of an embodiment of the present application.

[0029] Figure 2 This is a schematic diagram of the partial structure of a rotating processing table in one embodiment of the present application.

[0030] Figure 3 This is a schematic diagram of the structure of the rotating drive seat in one embodiment of the present application.

[0031] Figure 4 This is a schematic diagram of the structure of the rotating tailstock part in one embodiment of the present application.

[0032] Figure 5 This is a schematic diagram from another perspective of the rotating tailstock part in one embodiment of the present application.

[0033] Figure 6 This is a schematic diagram of a rotating support device in one embodiment of the present application.

[0034] Figure 7 This is a schematic diagram of the partial structure of a rotating support device in one embodiment of the present application.

[0035] Figure 8 This is a schematic diagram of the partial structure of another rotating support device in one embodiment of the present application.

[0036] Fig. 9 This is a schematic diagram of the partial structure of a laser processing device in one embodiment of the present application.

[0037] Fig.10 This is a schematic diagram of another perspective of a portion of a laser processing device in one embodiment of the present application.

[0038] Fig.11 This is a schematic diagram of a loading rack in one embodiment of the present application.

[0039] Fig.12 for Fig. 9 A partial enlarged view of part A.

[0040] Fig.13 This is a partial structural diagram of a laser marking device in one embodiment of the present application.

[0041] Explanation of the reference numerals: 1. Rotating drive device; 11. Rotating drive seat; 111. Drive seat body; 112. Seat body moving mechanism; 113. Drive seat reduction motor; 114. Positioning drive head; 12. Rotating tailstock; 121. Tailstock mounting plate; 122. Tailstock walking mechanism; 123. Tailstock slide; 124. Positioning ejector rod; 125. Ejector rod clamping device; 13. Conical chuck; 2. Rotating supporting device; 21. Supporting plate; 22. Height adjustment plate; 23. Supporting wheel mounting seat; 24. Positioning supporting wheel; 25. Loading guide frame; 251. Loading frame fixing rod; 252. First guide rod; 253. Second guide rod; 26. Unloading guide frame; 261. Unloading vertical rod; 262. Unloading ejector rod; 263. Unloading inclined rod; 27. Unloading pushing mechanism; 271. Unloading pushing driving member ;272, unloading ejector block;3, laser processing device;31, laser head moving seat;311, base;312, column driving mechanism;313, moving column;314, sliding column driving mechanism;315, horizontal sliding column;316, laser head driving mechanism;32, laser processing head;33, thread identification device;4, long tube material;41, external thread;5, rotating processing table;51, first slide rail;52, second slide rail;53, tailstock driving rack;6, loading rack;61, tube material limiting plate;611, limiting groove;62, loading ejector mechanism;621, loading ejector driving member;622, loading ejector block;63, laser marking device;631, marking mounting seat;632, mounting seat slider;633, slider driving mechanism;634, laser marking head;64, reference bar;7, material receiving rack. DETAILED DESCRIPTION

[0042] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0043] In the present application, unless otherwise stated, the directions or positional relationships indicated by the directional words such as "lateral, longitudinal" are directions or positional relationships based on the length direction of the pipe, wherein "lateral" refers to the direction perpendicular to the length direction of the pipe on the horizontal plane, and "longitudinal" refers to the direction parallel to the length direction of the pipe. The description of the directions and positional relationships of the components in the present application is the same.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0046] An embodiment of the long tube external thread laser processing equipment of the present application is as follows: Figure 1 As shown, it includes a rotary drive device 1, a rotary support device 2 and a laser processing device 3. The rotary drive device 1 is used to clamp and position the long tube material 4 to be processed, and drive the long tube material 4 to rotate, so that laser processing can be performed on different positions on the outer circumference of the long tube material. The rotary drive device 1 includes a rotary drive seat 11 and a rotary tailstock 12, and a conical chuck 13 is arranged on the rotary drive seat 11 and the rotary tailstock 12. The conical chuck 13 on the rotary drive seat 11 can rotate under the drive of the driving mechanism, and the conical chuck 13 on the rotary tailstock 12 can rotate freely on the rotary tailstock 12.

[0047] The rotary drive seat 11 and the rotary tail seat 12 are respectively arranged at the two ends of the long tube material 4, and the long tube material 4 is clamped between the rotary drive seat 11 and the rotary tail seat 12 by the conical chucks 13 from both ends of the long tube material 4 against the tube hole of the long tube material 4. The conical chucks 13 on the rotary drive seat 11 are rotated to drive the long tube material 4 to rotate, and the conical chucks 13 on the rotary tail seat 12 rotate together with the long tube material 4, limiting the position of the other end of the long tube material 4, and ensuring the stability of the rotation of the long tube material 4.

[0048] The rotation axis of the conical chuck 13 on the rotary tailstock 12 and the rotation axis of the conical chuck 13 on the rotary drive seat 11 are arranged on the same straight line, and the end position of the long tube material 4 is positioned by the cooperation between the conical surface of the conical chuck 13 and the tube hole, so that the rotation axis of the long tube material 4 and the rotation axis of the conical chucks 13 at both ends are on the same straight line. In this way, the distance between the outer peripheral surface of the long tube material 4 and the laser processing device 3 remains unchanged during the rotation process, ensuring that the laser processing device 3 forms the same processing effect on different positions of the external thread 41 on the long tube material 4.

[0049] The long tube material 4 is clamped from both ends of the long tube material 4 by the conical chuck 13 on the rotating drive seat 11 and the rotating tailstock 12, making it more convenient to clamp the long tube material 4. Moreover, the conical surface of the conical chuck 13 can cooperate with the tube hole of the long tube material 4 to form an accurate positioning of the long tube material 4, without the need to manually adjust the clamping position of the long tube material 4, which not only improves the clamping efficiency, but also ensures the consistency of the clamping position of the long tube material 4, which is conducive to ensuring the consistency of the laser processing effect of the external thread 41 on the long tube material 4.

[0050] The rotating support device 2 is arranged between the rotating drive seat 11 and the rotating tail seat 12, and can rotatably support the long tube material 4 from the middle position of the long tube material 4 between the rotating drive seat 11 and the rotating tail seat 12. The rotating support device 2 is arranged to support the long tube material 4 at the supporting position at a position that is in the same straight line as the two ends of the long tube material 4, reduce the deformation of the middle part of the long tube material 4 under the action of gravity, prevent the deformation of the tube material from causing the long tube material 4 to shake during the rotation process, and further ensure the laser processing effect of the external thread 41 on the long tube material 4.

[0051] The laser processing device 3 includes a laser head moving seat 31, a laser processing head 32 and a thread identification device 33. The laser processing head 32 is installed on the laser head moving seat 31. The laser head moving seat 31 can use various mounting seats that can drive the laser processing head 32 to move in the designed direction. The laser processing head 32 can move along the length direction of the long tube material 4 under the drive of the laser head moving seat 31, and perform laser processing on different positions of the external thread 41. The laser processing head 32 is selected according to the required processing type, and can be a processing head for laser quenching the external thread 41, or a processing head for laser cladding processing of the external thread 41, or a processing head for other laser processing. The thread identification device 33 can use various devices that can identify the position of the external thread 41 on the long tube material 4, such as a graphic recognition camera, an ultrasonic detection device, and an infrared detection device. The thread identification device 33 is fixed on the laser processing head 32, and can identify the position of the external thread 41 on the long tube material 4, so that after the rotating drive seat 11 and the rotating tailstock 12 complete the clamping of the long tube material 4, the starting position of the external thread 41 can be automatically identified, and the laser processing head 32 is guided to the starting position of the external thread 41 through the numerical control system. In the process of the rotation of the long tube material 4, the position of the external thread is tracked in real time, and the laser processing head 32 is controlled to move synchronously in real time, forming a motion coupling relationship between the laser processing head 32 and the long tube material 4, ensuring that the laser spot is always irradiated at the center position of the screw thread rather than the bottom position of the thread, effectively improving the laser processing effect of the external thread 41. In this way, it can ensure that all parts of the external thread 41 can be effectively laser processed, and can prevent invalid processing of areas outside the external thread 41, which not only effectively improves the laser processing efficiency of the external thread 41 on the long tube material 4, but also ensures the laser processing effect of the external thread 41.

[0052] In some embodiments of the long tube external thread laser processing equipment of the present application, as Figure 1 and Figure 2 As shown, the long tube external thread laser processing equipment of the present application also includes a rotary processing table 5, which is a long strip mounting frame usually formed by processing square steel, and the rotary drive device 1, the rotary support device 2 and the laser processing device 3 are all arranged on the rotary processing table 5. Among them, the rotary drive seat 11 and the rotary tailstock 12 are relatively arranged at the two end areas of the rotary processing table 5, and the conical chuck 13 on the rotary tailstock 12 is coaxially arranged relative to the conical chuck 13 on the rotary drive seat 11. The rotary drive seat 11 and the rotary tailstock 12 can both slide on the rotary processing table 5, so that the rotary drive seat 11 and the conical chuck 13 on the rotary tailstock 12 are close to each other to clamp the two ends of the long tube 4; or they are far away from each other to release the long tube 4 clamped on the conical chuck 13. By the relative movement of the rotating drive seat 11 and the rotating tail stock 12 on the rotating processing table 5, it can also be used to clamp long tube materials 4 of different lengths, so that the long tube material external thread laser processing equipment of the present application can be used to process the external thread 41 of long tube materials 4 of different lengths, thereby improving the applicability of the long tube material external thread laser processing equipment of the present application.

[0053] The rotary support device 2 is arranged on the rotary processing table 5 between the rotary drive seat 11 and the rotary tail seat 12, and is arranged on the same straight line as the rotary drive seat 11 and the rotary tail seat 12. Two rotary support devices 2 can be provided, or multiple rotary support devices 2 can be provided. Multiple rotary support devices 2 can be fixed on the rotary processing table 5, or can be slidably installed on the rotary processing table 5. The provision of multiple rotary support devices 2 can rotationally support the long tube material 4 from multiple positions in the middle of the long tube material 4, further ensuring the rotational stability of the long tube material 4. The sliding setting of the rotary support device 2 on the rotary processing table 5 facilitates the adjustment of the support spacing of the rotary support device 2, ensuring uniform support for different positions of the long tube material 4.

[0054] The laser head moving seat 31 is fixed to one end of the rotary processing table 5 , which is conducive to laser processing of the external thread 41 usually arranged at the end of the long tube material 4 .

[0055] In a preferred embodiment of the long tube external thread laser processing equipment of the present application, as Figures 1 to 5 As shown, a first slide rail 51 is provided at the end position of one end of the rotary processing table 5. The first slide rail 51 is a pair of short slide rails arranged in parallel along the length direction of the rotary processing table 5. The rotary drive seat 11 includes a drive seat body 111, a seat body moving mechanism 112, a drive seat reduction motor 113 and a positioning drive head 114. The drive seat body 111 is installed on the first slide rail 51 through a slider, and slides along the first slide rail 51 on the rotary processing table 5 by sliding the slider on the first slide rail 51.

[0056] The seat moving mechanism 112 can be any structure capable of driving the seat 111 to slide on the first slide rail 51. A specific seat moving mechanism 112 includes a seat servo motor and a seat screw. The seat servo motor is fixed on the rotary processing table 5. The seat screw is connected to the output shaft of the seat servo motor through a coupling. The drive seat 111 is fixed on the screw nut of the seat screw. By controlling the rotation of the seat servo motor, the rotary drive seat 11 can be driven to slide on the rotary processing table 5, and the moving position of the drive seat 111 can be accurately controlled, that is, the position of the long tube material 4 can be accurately controlled.

[0057] The drive seat reduction motor 113 is a drive motor with a reduction gear, which is fixed on the drive seat body 111 and can slide on the rotary processing table 5 together with the drive seat body 111. The positioning drive head 114 is fixed on the output shaft of the drive seat reduction motor 113, and the conical chuck 13 is fixed on the end of the positioning drive head 114. When the drive seat reduction motor 113 is working, the reduction gear drives the positioning drive head 114 to rotate slowly after decelerating the drive motor, and drives the long tube material 4 to rotate slowly through the conical chuck 13, while ensuring that the laser beam emitted by the laser processing device 3 can irradiate different positions on the outer peripheral surface of the long tube material 4, so that the laser energy can be accumulated on the tube wall of the long tube material 4, thereby ensuring the effect of laser processing.

[0058] A second slide rail 52 extending to most of the longitudinal direction of the rotary processing table 5 is provided at the other end of the rotary processing table 5. The second slide rail 52 is arranged opposite to the first slide rail 51, and a tailstock driving rack 53 is arranged on the side of the second slide rail 52. The rotary tailstock 12 includes a tailstock mounting plate 121, a tailstock travel mechanism 122, a tailstock slide 123, a positioning ejector 124, and an ejector clamping device 125.

[0059] The tailstock mounting plate 121 is mounted on the second slide rail 52 through a slider, and can slide on the rotary processing table 5 along the second slide rail 52. The tailstock travel mechanism 122 can be any device capable of driving the tailstock mounting plate 121 to move, such as Figure 5 As shown, a specific tailstock travel mechanism 122 includes a tailstock travel motor and a travel gear, wherein the tailstock travel motor is fixed on the tailstock mounting plate 121, and the travel gear is fixed on the output shaft of the tailstock travel motor and meshes with the tailstock drive rack 53. Through the operation of the tailstock travel motor, the tailstock mounting plate 121 can be driven to move on the second slide rail 52, thereby driving the entire rotating tailstock 12 to move on the rotating processing table 5, changing the distance between the rotating tailstock 12 and the rotating drive seat 11, so that long tubes 4 of different lengths can be clamped and processed.

[0060] The tailstock slide 123 is fixed on the tailstock mounting plate 121 and can move on the rotary processing table 5 together with the tailstock mounting plate 121. The push rod clamping device 125 can rotate various devices capable of linear propulsion, such as a cylinder, a hydraulic cylinder, an electric push rod, etc. The push rod clamping device 125 is fixed on the tailstock slide 123, and the push rod of the push rod clamping device 125 is slidably connected with the tailstock slide 123 and can slide longitudinally on the tailstock slide 123 in a direction parallel to the second slide rail 52. The positioning push rod 124 is rotatably connected with the push rod of the push rod clamping device 125, and is coaxially arranged with the positioning drive head 114. It can slide longitudinally under the push of the push rod clamping device 125, and can also rotate coaxially with the positioning drive head 114 relative to the push rod clamping device 125. The conical chuck 13 is fixed to the end of the positioning mandrel 124, and can move longitudinally under the push of the mandrel clamping device 125 to clamp the end of the long tube material 4 or loosen the long tube material 4, and can rotate with the long tube material 4 when clamping the long tube material 4.

[0061] As a specific implementation of the long tube external thread laser processing equipment of the present application, Figures 6 to 8 As shown, the rotary support device 2 includes a support plate 21, a height adjustment plate 22, a support wheel mounting seat 23 and a positioning support wheel 24. The height adjustment plate 22 is mounted on the support plate 21 by a long bolt, one end of the long bolt is fixedly connected to the support plate 21, and the height adjustment plate 22 is fixed to the other end of the long bolt by a nut. By adjusting the position of the nut on the long bolt, the fixed distance between the height adjustment plate 22 and the support plate 21 can be adjusted. The support wheel mounting seat 23 is fixed to the middle part of the height adjustment plate 22, and two positioning support wheels 24 are mounted on the support wheel mounting seat 23 in parallel and are rotatably connected to the support wheel mounting seat 23.

[0062] The two positioning support wheels 24 are installed on the support wheel mounting seat 23 so that the rotation axis of the positioning drive head 114 is located directly above the midpoint of the line connecting the two positioning support wheels 24, so that the two positioning support wheels 24 are symmetrical about the vertical plane where the rotation axis of the positioning drive head 114 is located.

[0063] The support plate 21 can be Figure 7 As shown, it is fixed on the rotary processing table 5, or it can be fixed on the rotary processing table 5 as shown. Figure 8 As shown, the slider is mounted on the second slide rail 52 so as to be able to slide on the rotary processing table 5 along the second slide rail 52. A slider locking device can also be provided on the slider, which can lock the position of the slider on the second slide rail 52 to prevent the rotation support device 2 from moving during the rotation of the long tube material 4.

[0064] By adjusting the distance between the height adjustment plate 22 and the support plate 21, the two positioning support wheels 24 can form support with the lower part of the tube wall of the long tube material 4 from both sides thereof, and the rotation center of the support part is in the same straight line with the rotation axis of the positioning push rod 124 and the positioning drive head 114, thereby ensuring the rotation stability of the long tube material 4.

[0065] In some embodiments of the long tube external thread laser processing equipment of the present application, as Fig. 9 and Fig.10 As shown, the laser head moving base 31 includes a base 311, a column driving mechanism 312, a moving column 313, a sliding column driving mechanism 314, a horizontal sliding column 315 and a laser head driving mechanism 316. The base 311 is fixed to the end of the rotary processing table 5, and the moving column 313 is installed on the base 311 through a sliding connection structure, and can slide laterally on the base 311. The column driving mechanism 312 is a ball screw mechanism driven by a servo motor. The column driving mechanism 312 is arranged between the base 311 and the moving column, and can drive the moving column to slide laterally on the base 311, so that the laser beam emitted by the laser processing head 32 can be irradiated at the highest point of the wall of the long tube material 4.

[0066] The horizontal sliding column 315 is installed on the moving column 313 through a sliding connection structure, and can slide up and down on the moving column 313. The sliding column driving mechanism 314 includes a sliding column driving motor fixed on the top of the moving column 313 and a sliding column driving screw arranged inside the moving column 313. The sliding column driving screw can rotate under the drive of the sliding column driving motor, thereby driving the horizontal sliding column 315 fixedly connected to the nut of the sliding column driving screw to slide vertically on the moving column 313 to adjust the distance between the laser processing head 32 and the pipe wall of the long pipe material 4, so as to ensure the laser processing effect of the laser processing head 32 on the external thread 41.

[0067] The laser processing head 32 is slidably installed on the horizontal sliding column 315 through a sliding connection structure. The laser head driving mechanism 316 includes a laser head driving motor and a laser head driving screw. The laser head driving motor is fixed on the side of the horizontal sliding column 315 adjacent to one end of the movable column 313. The laser head driving screw is arranged inside the horizontal sliding column 315. The laser head driving motor is connected to the laser head driving screw to drive the laser head driving screw to rotate, thereby driving the laser processing head 32 fixedly connected to the nut of the laser head driving screw to slide longitudinally on the horizontal sliding column 315, and laser processing is performed on different axial positions of the external thread 41.

[0068] In some embodiments of the long tube external thread laser processing equipment of the present application, as Figure 1 and Fig.11As shown, the long tube material external thread laser processing equipment of the present application also includes a loading rack 6. The loading rack 6 is a frame-shaped structure formed by processing square steel, and multiple long tube materials 4 can be placed on the loading rack 6. A transversely arranged reference bar 64 is provided at one end of the loading rack 6, and the reference bar 64 can form an alignment reference for multiple long tube materials 4, which is conducive to maintaining the neat arrangement of the long tube materials 4 on the loading rack 6.

[0069] The loading rack 6 is arranged on one side of the rotary processing table 5, and the top surface of the loading rack 6 is inclined toward the rotary processing table 5, so that the long tube materials 4 on the loading rack 6 are concentrated on the side close to the rotary processing table 5. A tube material limiting plate 61 is arranged on the side of the loading rack 6 adjacent to the rotary processing table 5, which is used to limit the position of the long tube materials 4 on the side edge of the loading rack 6 to prevent the long tube materials 4 from sliding off the loading rack 6.

[0070] A loading device is provided between the loading rack 6 and the rotary processing table 5 , and is used to transfer the long tube material 4 adjacent to the tube material limiting plate 61 on the loading rack 6 to the rotary processing table 5 , and after clamping the long tube material 4 , perform laser processing on the external thread 41 .

[0071] In a preferred embodiment of the long tube external thread laser processing equipment of the present application, as Figures 6 to 8 ,as well as Fig.11 and Fig.12 As shown, the feeding device includes a feeding guide frame 25 and a feeding push mechanism 62. The feeding guide frame 25 is fixed on the side of the rotating support device 2 adjacent to the feeding frame 6, and is used to guide the long tube material 4 from the feeding frame 6 to between the two positioning support wheels 24 on the rotating support device 2, so as to facilitate the rotating drive seat 11 and the rotating tailstock 12 to clamp the long tube material 4.

[0072] A limiting groove 611 is provided on the top surface of the tube material limiting plate 61, so that a long tube material 4 on the side edge of the feeding frame 6 is located in the limiting groove 611. The feeding pushing mechanism 62 is fixed on the tube material limiting plate 61 and is located below the limiting groove 611. The feeding pushing mechanism 62 can use various power mechanisms that can push the long tube material 4 out of the limiting groove 611. After the long tube material 4 on the rotating processing table 5 is processed, the feeding pushing mechanism 62 can push a long tube material 4 in the limiting groove 611 onto the feeding guide frame 25, and guide it to the rotating support device 2 through the feeding guide frame 25, and perform laser processing of the external threads 41 on multiple long tube materials 4 in sequence. The feeding device can automatically feed the long tube material 4, reduce the workload of feeding the long tube material 4, and improve the processing efficiency of the long tube material 4. The arrangement of the feeding guide frame 25 fixed on the rotating support device 2 enables the position of the feeding guide frame 25 to change with the change of the position of the rotating support device 2, thereby ensuring stable guidance of the long tube materials 4 of different lengths.

[0073] As a specific implementation of the long tube external thread laser processing equipment of the present application, Figures 6 to 8 As shown, the feeding guide frame 25 includes a feeding frame fixing rod 251, a first guide rod 252 and a second guide rod 253. The feeding frame fixing rod 251 is fixed to the height adjustment plate 22 on one side of the rotating support device 2, one end of the first guide rod 252 is fixed to the top of the feeding frame fixing rod 251, and the other end extends obliquely downward to the upper part of the adjacent positioning support wheel 24, so that the first guide rod 252 can guide the long tube material 4 to between the two positioning support wheels 24 from a height higher than the positioning support wheels 24.

[0074] One end of the second guide rod 253 is fixed to the top of the loading rack fixing rod 251 by a fastening bolt, and the fixing angle of the second guide rod 253 on the loading rack fixing rod 251 can be adjusted. The other end of the second guide rod 253 extends upwardly and obliquely toward the loading rack 6, and extends to a position corresponding to the horizontal direction of the tube material limiting plate 61. It is used to guide the long tube material 4 from the tube material limiting plate 61 to the position of the loading rack fixing rod 251, and continue to guide it through the first guide rod 252.

[0075] like Fig.12 As shown, the material loading push mechanism 62 includes a material loading push driving member 621 and a material loading push block 622. The material loading push driving member 621 can be various linear propulsion mechanisms, and a propulsion cylinder is usually used. The material loading push driving member 621 is fixed on the tube material limit plate 61, and the push rod of the material loading push driving member 621 can form an upward propulsion action. The material loading push block 622 is fixed on the push rod of the material loading push driving member 621. When the push rod is pushed upward, the top surface of the material loading push block 622 can be pushed to a height higher than the top surface of the tube material limit plate 61. The top surface of the material loading push block 622 is provided with an inclined surface inclined in the direction of the rotary processing table 5. When the material loading push block 622 is pushed upward, the long tube material 4 in the limit groove 611 can be supported on the top surface of the material loading push block 622, forming a tendency to roll toward the second guide rod 253. When the top surface of the loading block 622 is higher than the side height of the limiting groove 611, the long tube material 4 escapes from the limiting groove 611 and moves along the top surface of the loading block 622 to the second guide rod 253, thereby automatically loading the long tube material 4. When the loading block 622 descends, the adjacent long tube material 4 on the loading rack 6 moves along the top surface of the loading rack 6 and is added to the limiting groove 611.

[0076] In some embodiments of the long tube external thread laser processing equipment of the present application, as Fig.13As shown, a laser marking device 63 is provided at one end of the loading rack 6 where the laser processing device 3 is located. The laser marking device 63 includes a marking mounting seat 631, a mounting seat slider 632, a slider driving mechanism 633 and a laser marking head 634. The marking mounting seat 631 is fixed to the outer side of the reference bar 64 on the loading rack 6, and the slider driving mechanism 633 is fixed to the marking mounting seat 631.

[0077] The slider driving mechanism 633 includes a slider driving housing, a slider driving screw and a slider driving handwheel. The slider driving housing is fixed on the top surface of the marking mounting seat 631 which is inclined. The slider driving screw is rotatably connected to the inside of the slider driving housing. One end of the slider driving screw extends out of the slider driving housing and is fixedly connected to the slider driving handwheel. A slider mounting plate is fixed on the nut of the slider driving screw. One side of the slider mounting plate extends to the outside of the slider driving housing through a slide groove set on the slider driving housing. The mounting seat slider 632 is fixed on the slider mounting plate outside the slider driving housing to form a sliding connection with the marking mounting seat 631. The slider driving handwheel can drive the slider driving screw to rotate, thereby driving the mounting seat slider 632 fixed on the slider mounting plate to slide on the marking mounting seat 631.

[0078] The laser marking head 634 is rotatably connected to one end of the mounting seat slider 632 adjacent to the tube material limiting plate 61. The direction of the laser marking head 634 can be adjusted by rotating the laser marking head 634 so that the marking laser emitted by the laser marking head 634 can be irradiated onto the long tube material 4, thereby engraving a coded mark on the long tube material 4.

[0079] In some embodiments of the long tube external thread laser processing equipment of the present application, as Figure 1 As shown, a material receiving rack 7 is provided on the side of the rotary processing table 5 opposite to the loading rack 6. The material receiving rack 7 is a rectangular rack formed by processing square steel and is used to collect and store the long tube material 4 after the laser processing of the external thread 41 is completed.

[0080] A material unloading device is also provided on the rotary processing table 5. Specifically, the material unloading device is usually fixed on the rotary supporting device. Figures 6 to 8 As shown, the material unloading device includes a material unloading guide frame 26 and a material unloading push mechanism 27 , and the material unloading guide frame 26 includes a material unloading vertical rod 261 , a material unloading push rod 262 and a material unloading inclined rod 263 .

[0081] The material unloading vertical rod 261 is fixed to the side of the rotating support device 2 opposite to the material loading guide frame, and is usually fixed to the height adjustment plate. One end of the material unloading push rod 262 is fixed to the top of the material unloading vertical rod 261, and the other end extends obliquely upward to the top of the rotation axis of the adjacent positioning support wheel 24. One end of the material unloading inclined rod 263 is hinged to the material unloading push rod 262, and the other end is supported on the frame of the material receiving frame 7.

[0082] The material unloading pushing mechanism 27 includes a material unloading pushing driving member 271 and a material unloading pushing block 272. The material unloading pushing driving member 271 usually uses a cylinder and is fixed on the rotating support device 2, below the position between the two positioning support wheels 24. The material unloading pushing block 272 is fixed on the pushing rod of the material unloading pushing driving member 271, and can be lifted and lowered under the push of the material unloading pushing driving member 271. The top surface of the material removal ejector block 272 is set as an inclined surface inclined toward the material removal ejector rod 262. When the material removal ejector driving member 271 is in a retracted state, the material removal ejector block 272 is lower than the support height of the positioning support wheel 24, and does not affect the rotation of the long tube material 4 on the positioning support wheel 24. When the laser processing of the external thread 41 on the long tube material 4 is completed, the rotary drive seat 11 moves toward the end of the rotary processing table 5 on the first slide rail 51, and the positioning ejector rod 124 retracts under the action of the ejector rod clamping device 125 to release the long tube material 4. The material removal ejector driving member 271 pushes the material removal ejector block 272 to rise, so that the material removal ejector block 272 is higher than the support height of the positioning support wheel 24, and the long tube material 4 is supported on the inclined top surface of the material removal ejector block 272. The long tube material 4 moves onto the material unloading ejector rod 262 under the guidance of the top surface of the material unloading ejector block 272, and further moves onto the material receiving rack 7 along the material unloading inclined rod 263, and is collected on the material receiving rack 7.

[0083] In the description of the present application, the description with reference to the terms "one embodiment", "specific embodiment", "preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0084] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A laser processing device for external threads of long tubes, characterized in that: The invention comprises a rotary drive device (1), a rotary support device (2) and a laser processing device (3), wherein the rotary drive device (1) comprises a rotary drive seat (11) and a rotary tail seat (12), wherein the rotary drive seat (11) and the rotary tail seat (12) are both provided with conical chucks, and the rotary drive seat (11) and the rotary tail seat (12) are respectively arranged at two ends of a long tube material (4) so ​​that the two ends of the long tube material (4) can be clamped and positioned by the conical chucks, and the rotary support device (2) is arranged on the rotary drive seat (11). The laser processing device (3) comprises a laser head moving seat (31), a laser processing head (32) and a thread identification device (33) between the moving seat (11) and the rotating tail seat (12); the laser processing head (32) is mounted on the laser head moving seat (31) so as to be movable under the action of the laser head moving seat (31); and the thread identification device (33) is fixed on the laser processing head (32) so as to be able to guide the laser processing head (32) to perform laser processing on the external thread (41).

2. The long tube external thread laser processing equipment according to claim 1 is characterized in that: It also includes a rotary processing table (5), wherein the rotary drive seat (11) and the rotary tail seat (12) are respectively arranged at the two end areas of the rotary processing table (5) and are capable of sliding relatively on the rotary processing table (5), the rotary support device (2) is arranged on the rotary processing table (5) between the rotary drive seat (11) and the rotary tail seat (12), and the laser head movable seat (31) is fixed to one end of the rotary processing table (5).

3. The long tube external thread laser processing equipment according to claim 2 is characterized in that: The rotary drive seat (11) comprises a drive seat body (111), a seat body moving mechanism (112), a drive seat reduction motor (113) and a positioning drive head (114); the drive seat body (111) is slidably arranged on the rotary processing table (5); the seat body moving mechanism (112) is arranged between the drive seat body (111) and the rotary processing table (5) so as to be able to drive the drive seat body (111) to slide on the rotary processing table (5); the drive seat reduction motor (113) is fixed on the drive seat body (111); the positioning drive head (114) is fixed on the output shaft of the drive seat reduction motor (113); and the conical chuck is arranged at the end of the positioning drive head (114); the rotary tailstock (12) comprises a tailstock mounting plate (121), a tailstock walking mechanism (122) and a positioning drive head (114); 2), a tailstock slide (123), a positioning push rod (124) and a push rod clamping device (125), wherein the tailstock mounting plate (121) is slidably arranged on the rotary processing table (5), the tailstock walking mechanism (122) is arranged between the tailstock mounting plate (121) and the rotary processing table (5), the tailstock slide (123) is fixed on the tailstock mounting plate (121), the push rod clamping device (125) is fixed on the tailstock slide (123), the push rod of the push rod clamping device (125) is slidably connected to the tailstock slide (123), the positioning push rod (124) is rotatably connected to the push rod of the push rod clamping device (125), the conical chuck is arranged at the end of the positioning push rod (124), and the positioning push rod (124) is coaxially arranged with the positioning drive head (114).

4. The long tube external thread laser processing equipment according to claim 3 is characterized in that: The rotary support device (2) comprises a support plate (21), a height adjustment plate (22), a support wheel mounting seat (23) and a positioning support wheel (24); the rotary support frame (21) is mounted on the rotary processing table (5); the height adjustment plate (22) is mounted on the support plate (21) and can adjust the mounting height on the support plate (21); the support wheel mounting seat (23) is fixed on the height adjustment plate (22); the positioning support wheel (24) is rotatably mounted on the rotary support frame (21) and is symmetrically arranged on both sides of a vertical plane where a rotation axis of the positioning drive head (114) is located.

5. The long tube external thread laser processing equipment according to claim 1, characterized in that: The laser head movable base (31) comprises a base (311), a column driving mechanism (312), a movable column (313), a sliding column driving mechanism (314), a horizontal sliding column (315) and a laser head driving mechanism (316); the movable column (313) is mounted on the base (311) and can slide horizontally on the base (311) under the drive of the column driving mechanism (312); the horizontal sliding column (315) is mounted on the movable column (313) and can slide vertically on the movable column (313) under the drive of the sliding column driving mechanism (314); and the laser processing head (32) is mounted on the horizontal sliding column (315) and can slide longitudinally on the horizontal sliding column (315) under the drive of the laser head driving mechanism (316).

6. The long tube external thread laser processing equipment according to claim 2, characterized in that: It also includes a loading rack (6), which is arranged on one side of the rotating processing table (5) and has a top surface inclined in the direction of the rotating processing table (5); a tube material limiting plate (61) is arranged on one side of the loading rack (6) adjacent to the rotating processing table (5); and a loading device is arranged between the loading rack (6) and the rotating processing table (5).

7. The long tube external thread laser processing equipment according to claim 6, characterized in that: The feeding device comprises a feeding guide frame (25) and a feeding pushing mechanism (62); the feeding guide frame (25) is fixed on a side of the rotating support device (2) adjacent to the feeding frame (6); a limiting groove (611) is provided on the top surface of the tube material limiting plate (61); and the feeding pushing mechanism (62) is fixed below the limiting groove (611) on the tube material limiting plate (61) so as to be able to push the long tube material (4) in the limiting groove (611) onto the feeding guide frame (25).

8. The long tube external thread laser processing equipment according to claim 7, characterized in that: The loading guide frame (25) comprises a loading frame fixing rod (251), a first guide rod (252) and a second guide rod (253); the loading frame fixing rod (251) is fixed to one side of the rotating support device (2); the first guide rod (252) is fixed to the top of the loading frame fixing rod (251) and is inclined downward toward the rotating support device (2); the second guide rod (253) is fixed to the top of the loading frame fixing rod (251) and is inclined toward the loading frame. (6) is inclined upward in the direction and extends to a position corresponding to the tube material limiting plate (61) in the horizontal direction. The loading pushing mechanism (62) comprises a loading pushing driving member (621) and a loading pushing block (622). The loading pushing driving member (621) is fixed on the tube material limiting plate (61), and the loading pushing block (622) is fixed on the pushing rod of the loading pushing driving member (621). The top surface of the loading pushing block (622) is set to be an inclined surface inclined in the direction of the rotating processing table (5).

9. The long tube external thread laser processing equipment according to claim 6, characterized in that: A laser marking device (63) is provided at the end of the loading rack (6), and the laser marking device (63) comprises a marking mounting seat (631), a mounting seat slider (632), a slider driving mechanism (633) and a laser marking head (634); the marking mounting seat (631) is fixed on the loading rack (6); the mounting seat slider (632) is slidably connected to the marking mounting seat (631) and can slide on the marking mounting seat (631) under the drive of the slider driving mechanism (633); the laser marking head (634) is rotatably connected to one end of the mounting seat slider (632) adjacent to the tube material limiting plate (61).

10. The long tube external thread laser processing equipment according to claim 2, characterized in that: The device also comprises a material receiving rack (7), wherein the material receiving rack (7) is arranged on the side of the rotating processing table (5), and a material unloading device is also arranged on the rotating processing table (5), wherein the material unloading device comprises a material unloading guide rack (26) and a material unloading push mechanism (27), wherein the material unloading guide rack (26) comprises a material unloading vertical rod (261), a material unloading push rod (262) and a material unloading inclined rod (263), wherein the material unloading vertical rod (261) is fixed to one side of the rotating supporting device (2), and the material unloading push rod (262) is fixed to the top of the material unloading vertical rod (261). One end of the material unloading inclined rod (263) is hinged to the material unloading ejector rod (262), and the other end is supported on the material receiving frame (7). The material unloading ejector mechanism (27) comprises a material unloading ejector driving member (271) and a material unloading ejector block (272). The material unloading ejector driving member (271) is fixed on the rotating support device (2), and the material unloading ejector block (272) is fixed on the ejector rod of the material unloading ejector driving member (271). The top surface of the material unloading ejector block (272) is arranged as an inclined surface inclined in the direction of the material unloading ejector rod (262).

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