Processing equipment and processing technology of high-strength stainless steel seamless steel pipe

Abstract

The application discloses a kind of high-strength stainless steel seamless steel pipe processing equipment and its processing technology, including first workstation, first motor, screw, slide rail, clamping frame, guide frame, mandrel, second workstation, air cylinder, lifting plate, blank, transmission frame and discharge frame, the first workstation is equipped with screw by first motor, wherein screw is engaged through thread and passes through clamping frame, which is installed on slide rail;The middle part of the guide frame and the clamping frame is fixed with mandrel and blank;Second workstation is equipped with lifting plate by air cylinder, wherein lifting plate is fixed with transmission frame;Second workstation is fixed with discharge frame.The high-strength stainless steel seamless steel pipe processing equipment and its processing technology improve the efficiency of mandrel extraction, at the same time, improve the degree of automation of equipment, only need to complete the whole extraction process through simple operation, and improve the applicability of mandrel, in addition, can be easily integrated into existing production environment.

Description

Technical Field

[0001] This invention relates to the field of high-strength stainless steel seamless pipe production, specifically to a processing equipment and processing technology for high-strength stainless steel seamless pipe. Background Technology

[0002] The production of seamless steel pipes is a complex and delicate process that encompasses multiple key stages. The processing flow of seamless steel pipes mainly includes steps such as raw material preparation, piercing, rolling, heat treatment, finishing, and inspection. In the entire processing flow of seamless steel pipes, the removal of the mandrel is an important step after the rolling stage. The successful removal of the mandrel not only affects the quality and production efficiency of seamless steel pipes, but also has a significant impact on the continuity and stability of the entire production process.

[0003] Therefore, in the prior art, this removal process usually requires a series of precise operations and mechanical assistance. In order to ensure that the mandrel is successfully removed from the capillary tube without damaging the inner wall of the steel tube, the operator needs to rely on specific tools and equipment to precisely control the movement and rotation of the mandrel. This includes using clamps to fix the mandrel and using a drive system to precisely control the rotation and extraction speed of the mandrel.

[0004] The purpose of this invention is to provide a processing equipment and process for high-strength stainless steel seamless pipes, addressing the following shortcomings in existing stainless steel pipe processing techniques: 1. Traditional mandrel removal methods typically rely on manual operation or the coordination of multiple mechanical devices. These methods are often inefficient and cannot meet the needs of large-scale production. The tight fit between the mandrel and the tube makes manual removal time-consuming and labor-intensive, and can easily damage the inner wall of the steel pipe; 2. Existing technologies require the coordinated action of multiple steps and equipment when removing the mandrel, making the operation complex and increasing the possibility of errors. The complex operation process also increases the labor intensity and safety risks for workers; 3. Existing mandrel removal equipment lacks automation capabilities and cannot be effectively integrated with modern production lines. This not only limits the improvement of production efficiency but also hinders the automation and intelligent development of the steel pipe manufacturing industry; 4. During the mandrel removal process, improper operation or insufficient equipment precision can easily lead to damage to the tube or mandrel. This damage not only affects product quality but may also lead to material waste and increased production costs.

[0005] Therefore, it is essential to invent a processing equipment and process for high-strength stainless steel seamless pipes. Summary of the Invention

[0006] The purpose of this invention is to provide a processing equipment and process for high-strength stainless steel seamless pipes, addressing the following shortcomings of existing processing equipment and processes: 1. Traditional mandrel removal methods typically rely on manual operation or the coordination of multiple mechanical devices. These methods are often inefficient and cannot meet the needs of large-scale production. The tight fit between the mandrel and the tube makes manual removal time-consuming and labor-intensive, and can easily damage the inner wall of the steel pipe; 2. Existing technologies require the coordinated action of multiple steps and equipment when removing the mandrel, making the operation complex and increasing the possibility of errors. The complex operation also increases the labor intensity and safety risks for workers; 3. Existing mandrel removal equipment lacks automation capabilities and cannot be effectively integrated with modern production lines. This not only limits the improvement of production efficiency but also hinders the automation and intelligent development of the steel pipe manufacturing industry; 4. During the mandrel removal process, improper operation or insufficient equipment precision can easily lead to damage to the tube or mandrel. This damage not only affects product quality but may also lead to material waste and increased production costs.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a processing equipment for high-strength stainless steel seamless pipes, comprising a first worktable, a first motor, a lead screw, a slide rail, a clamping frame, a guide frame, a mandrel, a second worktable, a cylinder, a lifting plate, a capillary tube, a transmission frame, and a discharge frame. Both the first and second worktables are bolted to the ground. A first motor is bolted to one side of the first worktable, and a lead screw is fixed to the output end of the first motor. The outer sides of both ends of the lead screw are rotatably connected to the first worktable via bearing seats, and the lead screw passes through a clamping frame via threaded engagement. The clamping frame is slidably mounted on the upper side of the slide rail. Two slide rails are provided, and both slide rails are connected to the first worktable via… The clamping frame is bolted parallel to the side of the first workbench; a guide frame is provided on one side of the clamping frame, wherein there are two to four guide frames, and a mandrel is fixed in the middle of the guide frame and the clamping frame, and a capillary tube is sleeved on the outer side of the mandrel; a second workbench is provided on one side of the first workbench near the guide frame, wherein two to four cylinders are bolted to the lower side of the second workbench, and the output end of the cylinder slides through the second workbench; a lifting plate is fixed to the output end of the cylinder, wherein a transmission frame is bolted to the upper side of the lifting plate, and the transmission frame is located on one side of the guide frame; a discharge frame is bolted to the upper side of the second workbench, wherein the discharge frame is located on one side of the transmission frame.

[0008] Further, the clamping frame includes a first frame, a first electric push rod, a support plate, a pressure plate, rollers, a second electric push rod, a second motor, and friction wheels. A lead screw passes through the interior of the first frame via a threaded connection, and the lower end of the first frame has a groove corresponding to a slide rail, through which the slide rail slides. The first frame is U-shaped, and one to three first electric push rods are bolted to the lower interior side of the first frame. The output end of the first electric push rod is bolted to the support plate. A pressure plate is provided on the upper side of the support plate, and both ends of the support plate and the pressure plate are slidably connected to the inner wall of the first frame via a tongue-and-groove fit. Three rollers are provided, two of which are bolted to the upper side of the support plate, and the remaining roller is bolted to the lower side of the pressure plate, with the three rollers arranged in a triangle. The upper side of the pressure plate is bolted to the output end of the second electric push rod, and one to three second electric push rods are provided. Furthermore, the base of the second electric push rod is fixed to the upper inner side of the first frame with bolts; the middle of one side of the pressure plate is fixed with a second motor with bolts, and the output end of the second motor is rotatably connected to the pressure plate through a bearing seat; the output end of the second motor is fixed with a friction wheel, wherein the outer side of the friction wheel is provided with several protrusions, and the outer side of the friction wheel contacts the outer side of the mandrel. After the mandrel moves between the three rollers through the transmission frame and the capillary tube on the outer side of the mandrel is fixed by the guide frame, the first electric push rod and the second electric push rod can drive the support plate and the pressure plate to move, so that the three rollers contact the mandrel's slot. Then the second motor is started, and the friction wheel is driven to rotate. During the rotation of the friction wheel, the mandrel can be driven to rotate. At the same time, through the cooperation of the first motor, the lead screw and the first frame, the first frame moves along the slide rail, thereby pulling the mandrel out of the capillary tube through the cooperation of the rollers and the mandrel.

[0009] Further, the guide frame includes a second frame, a first concave wheel, a second concave wheel, a third motor, and a gear set. The second frame is bolted to the side of the first workbench, and the second frame is U-shaped. The first and second concave wheels are rotatably mounted inside the second frame via support bearings, with the first concave wheel positioned above the second concave wheel, and both contacting the outer surface of the capillary tube. The third motor is bolted to the outer surface of the second frame, with its output end fixed to one end of the second concave wheel, and the other end of the second concave wheel connected to the first concave wheel via the gear set. The gear set consists of four gears, two of which are fixed to the first and second concave wheels. The remaining two gears are rotatably connected to the second frame via support bearings, and adjacent gears are meshed with each other. When the mandrel is rotated and moved by the clamping frame, the second concave wheel can be rotated by the third motor. During the rotation of the second concave wheel, the first concave wheel can be rotated in the opposite direction by the gear set. Thus, through the friction between the first and second concave wheels and the capillary tube, the capillary tube is moved in the opposite direction of the mandrel's movement, pushing the capillary tube onto the transmission frame, causing the capillary tube to disengage from the mandrel.

[0010] Furthermore, the mandrel includes a body, a groove, a tail, and a cone. One end of the body is fixed with a tail by welding, and the intersection of the tail and the body has an arc-shaped groove, with a groove on the outer side of the tail. The other end of the body is fixed with a cone, which is conical in shape. The body, tail, and cone are all made of high-speed steel containing a large amount of carbon (C), tungsten (W), molybdenum (Mo), chromium (Cr), vanadium (V), etc., so that the mandrel can meet the strength requirements for piercing and rolling. A tube is fitted on the outer side of the body. During use, the cone allows the mandrel to pierce the tube, the groove facilitates the clamping of the body, and the groove on the outer side of the tail increases the friction between the friction wheel and the mandrel, thus facilitating the rotation of the mandrel by the friction wheel.

[0011] Furthermore, the transmission frame includes side plates, third concave wheels, and a fourth motor. Several side plates are arranged in two rows, with corresponding third concave wheels rotatably mounted between them via support bearings. Several third concave wheels are provided, one end of which is fixed to the output end of the fourth motor, and adjacent third concave wheels are connected via pulleys and belts. The fourth motor is bolted to the outer surface of the corresponding side plate. In use, the fourth motor drives one of the third concave wheels to rotate, and then, with the cooperation of the pulleys and belts, drives the remaining third concave wheels to rotate synchronously. During rotation, the third concave wheels can move a mandrel fitted with a capillary tube, a separate capillary tube, or a separate mandrel.

[0012] Furthermore, the feeding rack includes a first feeding rack and a second feeding rack. The first feeding rack and the second feeding rack have the same structure as the transmission rack, and the first feeding rack is fixed to the upper end of the second feeding rack by bolts. The second feeding rack is fixed to the upper side of the second workbench by bolts. In use, the capillary tube and the mandrel can be fed out through the first feeding rack and the second feeding rack respectively.

[0013] Furthermore, the lifting plate is disposed on the upper side of the second workbench, and four to six limiting posts are fixed to the lower side of the lifting plate by welding. The limiting posts slide through the second workbench. In use, the lifting plate can move up and down under the action of the cylinder, so that the transmission frame on the upper side of the lifting plate moves to one side of the first feeding frame or the second feeding frame, thereby feeding the tube and the mandrel into the corresponding first feeding frame or the second feeding frame respectively. At the same time, the setting of the limiting posts can prevent the movement of the lifting plate from deviating.

[0014] Furthermore, the processing steps of the high-strength stainless steel seamless pipe processing equipment are as follows:

[0015] Step 1: The mandrel with the capillary tube is placed on the transmission frame by an external mechanical gripper. Then, the mandrel with the capillary tube is moved into the clamping frame and guide frame by the transmission frame, and one end of the mandrel is fixed by the clamping frame.

[0016] Step 2: Start the first, second, and third motors. The first motor drives the lead screw to rotate, which in turn causes the clamping frame to slide along the slide rail, pulling the mandrel out of the capillary tube. Simultaneously, the second motor drives the friction wheel to rotate, causing the mandrel to rotate as it is pulled out. The third motor drives the guide frame, moving the capillary tube in the opposite direction to the mandrel's movement, thus placing the capillary tube onto the transmission frame.

[0017] Step 3: Move the tube to the first feeding frame through the transmission frame, that is, discharge the tube through the first feeding frame so that it can enter the next process.

[0018] Step 4: Through the cooperation of the first motor, lead screw and clamping frame, the mandrel is pushed into the guide frame, and then moves to the transmission frame through the guide frame. Then, the lifting plate is driven to move down through the lead screw, so that the transmission frame moves to the side of the second feeding frame.

[0019] Step 5: The mandrel is pushed onto the second feeding frame via the transmission frame, and then discharged from the second feeding frame. The mandrel is then sent back to the piercing process position via an external feeding mechanism for reuse.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The clamping frame of the present invention, after the mandrel moves between the three rollers via the transmission frame and the capillary tube on the outer side of the mandrel is fixed by the guide frame, can drive the support plate and pressure plate to move via the first electric push rod and the second electric push rod, so that all three rollers are in contact with the mandrel's slot. Then, the second motor is started, and the friction wheel is driven to rotate. During the rotation of the friction wheel, the mandrel can be driven to rotate. At the same time, through the cooperation of the first motor, the lead screw and the first frame, the first frame moves along the slide rail, thereby pulling the mandrel out of the capillary tube through the cooperation of the rollers and the mandrel.

[0022] 2. The guide frame of the present invention is configured such that when the mandrel is rotated and moved by the clamping frame, the second concave wheel can be rotated by the third motor. During the rotation of the second concave wheel, the first concave wheel can be rotated in the opposite direction by the gear set. Thus, through the friction between the first and second concave wheels and the capillary tube, the capillary tube is moved in the opposite direction of the mandrel movement, pushing the capillary tube onto the transmission frame, so that the capillary tube is separated from the mandrel.

[0023] 3. The design of the mandrel in this invention, when in use, includes a conical head that allows the mandrel to pierce the capillary tube, a slot that facilitates the clamping of the mandrel, and a groove on the outer side of the mandrel tail that increases the friction between the friction wheel and the mandrel, thereby facilitating the rotation of the mandrel by the friction wheel.

[0024] 4. The transmission frame of the present invention, when in use, can drive one of the third concave wheels to rotate through the fourth motor, and then drive the remaining third concave wheels to rotate synchronously through the cooperation of the pulley and belt. During the rotation of the third concave wheels, the mandrel with the capillary tube, the individual capillary tube, or the individual mandrel can be moved.

[0025] 5. The lifting plate of the present invention can move up and down under the action of the cylinder during use, so that the transmission frame on the upper side of the lifting plate moves to one side of the first feeding frame or the second feeding frame, thereby feeding the tube and the mandrel into the corresponding first feeding frame or the second feeding frame respectively. At the same time, the setting of the limiting post can prevent the movement of the lifting plate from deviating. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the clamping frame of the present invention.

[0028] Figure 3 This is a schematic diagram of the guide frame of the present invention.

[0029] Figure 4 This is a schematic diagram of the structure of the mandrel of the present invention.

[0030] Figure 5 This is a schematic diagram of the transmission frame of the present invention.

[0031] Figure 6 This is a schematic diagram of the material feeding rack of the present invention.

[0032] In the picture:

[0033] 1-First workbench, 2-First motor, 3-Screw, 4-Slide rail, 5-Clamping frame, 51-First frame, 52-First electric push rod, 53-Panel, 54-Pressure plate, 55-Roller, 56-Second electric push rod, 57-Second motor, 58-Friction wheel, 6-Guide frame, 61-Second frame, 62-First concave wheel, 63-Second concave wheel, 64-Third motor, 65-Gear set, 7-Core rod, 71-Rod body, 72-Slot, 73-Rod tail, 75-Cone, 8-Second workbench, 9-Cylinder, 10-Lifting plate, 11-Capillary tube, 12-Transmission frame, 121-Side plate, 122-Third concave wheel, 123-Fourth motor, 13-Discharge rack, 131-First feeding rack, 132-Second feeding rack. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] As attached Figure 1-6 As shown:

[0036] A processing equipment for high-strength stainless steel seamless pipes includes a first workbench 1, a first motor 2, a lead screw 3, a slide rail 4, a clamping frame 5, a guide frame 6, a mandrel 7, a second workbench 8, a cylinder 9, a lifting plate 10, a capillary tube 11, a transmission frame 12, and a discharge frame 13. Both the first workbench 1 and the second workbench 8 are bolted to the ground. The first motor 2, a Y-series three-phase asynchronous motor, is bolted to one side of the first workbench 1. The output end of the first motor 2 is fixed with a lead screw 3. The outer sides of both ends of the lead screw 3 are rotatably connected to the first workbench 1 via bearing seats. The lead screw 3 passes through the clamping frame 5 via threaded engagement. The clamping frame 5 is slidably mounted on the upper side of the slide rail 4. Two slide rails 4 are provided, and both slide rails 4 are... The clamping frame 5 is bolted parallel to the upper side of the first workbench 1; a guide frame 6 is provided on one side of the clamping frame 5, wherein there are two to four guide frames 6, and a mandrel 7 is fixed in the middle of the guide frame 6 and the clamping frame 5, and a capillary tube 11 is sleeved on the outer side of the mandrel 7; a second workbench 8 is provided on one side of the first workbench 1 near the guide frame 6, wherein two to four cylinders 9 are bolted to the lower side of the second workbench 8, and the output end of the cylinder 9 slides through the second workbench 8; a lifting plate 10 is fixed to the output end of the cylinder 9, wherein a transmission frame 12 is bolted to the upper side of the lifting plate 10, and the transmission frame 12 is located on one side of the guide frame 6; a discharge frame 13 is bolted to the upper side of the second workbench 8, wherein the discharge frame 13 is located on one side of the transmission frame 12.

[0037] Specifically, the clamping frame 5 includes a first frame 51, a first electric push rod 52, a support plate 53, a pressure plate 54, a roller 55, a second electric push rod 56, a second motor 57, and a friction wheel 58. A lead screw 3 passes through the interior of the first frame 51 via a threaded connection, and a groove corresponding to the slide rail 4 is provided at the lower end of the first frame 51, through which the slide rail 4 slides. The first frame 51 is U-shaped, and one to three first electric push rods 52 are fixed to the lower interior side of the first frame 51 by bolts. The output end of each first electric push rod 52 is fixed to a support plate by bolts. Plate 53; A pressure plate 54 is provided on the upper side of the support plate 53, wherein both ends of the support plate 53 and the pressure plate 54 are slidably connected to the inner wall of the first frame 51 through a tongue-and-groove fit; Three rollers 55 are provided, two of which are fixed to the upper side of the support plate 53 by bolts, and the remaining roller 55 is fixed to the lower side of the pressure plate 54 by bolts, the three rollers 55 are arranged in a "triangular" pattern; The upper side of the pressure plate 54 is fixed to the output end of the second electric push rod 56 by bolts, wherein there are one to three second electric push rods 56, and the base of each second electric push rod 56 is fixed to the output end of the first electric push rod 54 by bolts. The upper side of the frame 51 is fixed inside; a second motor 57 is fixed to the middle of one side of the pressure plate 54 by bolts. The second motor 57 is a Y-series three-phase asynchronous motor, and the output end of the second motor 57 is rotatably connected to the pressure plate 54 through a bearing seat; a friction wheel 58 is fixed to the output end of the second motor 57, wherein the outer side of the friction wheel 58 is provided with several protrusions, and the outer side of the friction wheel 58 contacts the outer side of the mandrel 7. After the mandrel moves between the three rollers 55 through the transmission frame 12 and the capillary tube 11 on the outer side of the mandrel 7 is fixed by the guide frame 6, the mandrel 57 is fixed to the upper side of the frame 54. The first electric push rod 52 and the second electric push rod 56 can drive the support plate 53 and the pressure plate 54 to move, so that the three rollers 55 are in contact with the slots 72 of the mandrel 7. Then, the second motor 57 is started, which drives the friction wheel 58 to rotate. During the rotation of the friction wheel 58, the mandrel 7 can be rotated. At the same time, through the cooperation of the first motor 2, the lead screw 3 and the first frame 51, the first frame 51 moves along the slide rail 4, so that the mandrel 7 is pulled out from inside the capillary tube 11 through the cooperation of the rollers 55 and the mandrel 7.

[0038] Specifically, the guide frame 6 includes a second frame 61, a first concave wheel 62, a second concave wheel 63, a third motor 64, and a gear set 65. The second frame 61 is fixed to the upper side of the first workbench 1 by bolts, and the shape of the second frame 61 is "U". The first concave wheel 62 and the second concave wheel 63 are rotatably mounted inside the second frame 61 through a support bearing. The first concave wheel 62 is located on the upper side of the second concave wheel 63, and the first concave wheel 62 and the second concave wheel 63 are respectively in contact with the outer side of the capillary tube 11. The third motor 64 is fixed to the outer side of the second frame 61 by bolts. The third motor 64 is a Y-series three-phase asynchronous motor. The output end of the third motor 64 is fixed to one end of the second concave wheel 63, and the other end of the second concave wheel 63 is connected to the gear set 65. Gear set 65 is connected to the first concave wheel 62; gear set 65 consists of four gears, two of which are fixed to the first concave wheel 62 and the second concave wheel 63, and the remaining two gears are rotatably connected to the second frame 61 through the support bearing, and the adjacent gears are meshed with each other. When the mandrel 7 is rotated and moved by the clamping frame 5, the second concave wheel 63 can be rotated by the third motor 64. During the rotation of the second concave wheel 63, the first concave wheel 62 can be rotated in the opposite direction by the gear set 65. Thus, through the friction between the first concave wheel 62 and the second concave wheel 63 and the capillary tube 11, the capillary tube 11 is moved in the opposite direction of the movement of the mandrel 7, pushing the capillary tube 11 onto the transmission frame 12, so that the capillary tube 11 is disengaged from the mandrel 7.

[0039] Specifically, the mandrel 7 includes a rod body 71, a groove 72, a tail 73, and a cone 74. One end of the rod body 71 is fixed to the tail 73 by welding. An arc-shaped groove 72 is formed at the intersection of the tail 73 and the rod body 71, and a groove is formed on the outer side of the tail 73. The other end of the rod body 71 is fixed to the cone 74 by welding. The cone 74 is conical in shape. The rod body 71, the tail 73, and the cone 74 are all made of materials containing a large amount of carbon (C), tungsten (W), molybdenum (Mo), chromium (Cr), and vanadium (V). Made of high-speed steel with elements such as [missing information], the mandrel 7 has the strength required for piercing and rolling. The outer side of the mandrel 71 is fitted with a capillary tube 11. During use, the cone head 74 allows the mandrel 7 to pierce the capillary tube 11. The slot 72 facilitates the clamping frame 5 to limit the position of the mandrel 71. The groove on the outer side of the tail 73 increases the friction between the friction wheel 54 and the mandrel 7, thus facilitating the rotation of the mandrel 7 by the friction wheel 54.

[0040] Specifically, the transmission frame 12 includes side plates 121, third concave wheels 122, and a fourth motor 123. Several side plates 121 are arranged in two rows, with third concave wheels 122 rotatably mounted between corresponding side plates 121 via support bearings. Several third concave wheels 122 are provided, with one end of one of them fixed to the output end of the fourth motor 123. The fourth motor 123 is a Y-series three-phase asynchronous motor, and adjacent third concave wheels 122 are connected via pulleys and belts. The fourth motor 123 is bolted to the outer surface of the corresponding side plate 121. In use, the fourth motor 123 drives one of the third concave wheels 122 to rotate, and then, with the cooperation of the pulleys and belts, drives the remaining third concave wheels 122 to rotate synchronously. During rotation, the third concave wheels 122 can move the mandrel 7 with the capillary tube 11, the individual capillary tube 11, or the individual mandrel 7.

[0041] Specifically, the feeding rack 13 includes a first feeding rack 131 and a second feeding rack 132. The first feeding rack 131 and the second feeding rack 132 have the same structure as the transmission rack 12. The first feeding rack 131 is fixed to the upper end of the second feeding rack 132 by bolts. The second feeding rack 132 is fixed to the upper side of the second workbench 8 by bolts. When in use, the capillary tube 11 and the mandrel 7 can be fed out through the first feeding rack 131 and the second feeding rack 132 respectively.

[0042] Specifically, the lifting plate 10 is set on the upper side of the second workbench, and four to six limiting posts are fixed to the lower side of the lifting plate 10 by welding. The limiting posts slide through the second workbench 8. When in use, the lifting plate 10 can move up and down under the action of the cylinder 9, so that the transmission frame 12 on the upper side of the lifting plate 10 moves to one side of the first feeding frame 131 or the second feeding frame 132, thereby feeding the capillary tube 11 and the mandrel 7 into the corresponding first feeding frame 131 or second feeding frame 132 respectively. At the same time, the setting of the limiting posts can prevent the movement of the lifting plate 10 from deviating.

[0043] Specifically, the processing steps of high-strength stainless steel seamless pipe processing equipment are as follows:

[0044] Step 1: The mandrel 7 with the capillary tube 11 is placed on the transmission frame 12 by the external mechanical claw. Then, the mandrel 7 with the capillary tube 11 is moved into the clamping frame 5 and the guide frame 6 by the transmission frame 12, and one end of the mandrel 7 is fixed by the clamping frame 5.

[0045] Step 2: Start the first motor 2, the second motor 57, and the third motor 64. The first motor 2 drives the lead screw 3 to rotate. During the rotation of the lead screw 3, the clamping frame 5 slides along the slide rail 4, pulling the mandrel 7 out of the capillary tube 11. At the same time, the second motor 57 drives the friction wheel 58 to rotate, so that the mandrel 7 rotates while being pulled out. The third motor 64 drives the guide frame 6 to work, moving the capillary tube 11 in the opposite direction to the movement of the mandrel 7, so that the capillary tube 11 moves onto the transmission frame 12.

[0046] Step 3: Move the tube 11 to the first feeding frame 131 through the transmission frame 12, that is, discharge the tube 11 through the first feeding frame 131 so that it can enter the next process.

[0047] Step 4: Through the cooperation of the first motor 2, lead screw 3 and clamping frame 5, the mandrel 7 is pushed into the guide frame 6, and then moves to the transmission frame 12 through the guide frame 6. Then, the lifting plate 10 is driven to move down through the lead screw 3, so that the transmission frame 12 moves to the side of the second feeding frame 132.

[0048] Step 5: The mandrel 7 is pushed onto the second feeding frame 132 by the transmission frame 12, that is, the mandrel 7 is discharged by the second feeding frame 132. Then, the mandrel 7 is sent back to the piercing process position by the external feeding mechanism so that it can be reused.

[0049] All components used in this application are standard parts, and the specific connection methods of each part adopt conventional methods such as bolts and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0050] In summary: This high-strength stainless steel seamless pipe processing equipment and its processing technology, through the introduction of clamping frame (5) and guide frame (6) design, 1. realizes the automatic rotation and movement of mandrel (7), thereby significantly improving the efficiency of mandrel (7) removal, while also reducing manual intervention and improving the automation level of the equipment; 2. by integrating multiple functions into a single device, the operation process of mandrel (7) removal is simplified, and users can complete the entire removal process with simple operations, reducing the possibility of errors; 3. the design of mandrel (7) takes into account its applicability, so that the mandrel (7) can not only meet the needs of piercing process, but also meet the needs of rolling process; 4. it can be compatible with existing production lines, making it easy to integrate into the existing production environment, while the equipment has a simple and clear structure, and is easy to maintain and manage.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing equipment for high-strength stainless steel seamless pipes, comprising a first worktable (1), a first electric motor (2), a lead screw (3), a slide rail (4), a clamping frame (5), a guide frame (6), a mandrel (7), a second worktable (8), a cylinder (9), a lifting plate (10), a tube (11), a transmission frame (12), and a discharge frame (13), characterized in that: The first workbench (1) and the second workbench (8) are both fixed on the ground. A first motor (2) is fixed on one side of the first workbench (1), and a lead screw (3) is fixed to the output end of the first motor (2). The outer sides of both ends of the lead screw (3) are rotatably connected to the first workbench (1), and the lead screw (3) passes through the clamping frame (5) through thread engagement. The clamping frame (5) is slidably mounted on the upper side of the slide rail (4). There are two slide rails (4), and the slide rails (4) are fixed parallel to the upper side of the first workbench (1). A guide frame (6) is provided on one side of the clamping frame (5), and there are several guide frames (6). The guide frame (6) and the clamping frame (5) are connected. A core rod (7) is fixed in the middle of the first workbench (1), and a capillary tube (11) is fitted on the outer side of the core rod (7); a second workbench (8) is provided on the side of the first workbench (1) near the guide frame (6), wherein a plurality of cylinders (9) are fixed on the lower side of the second workbench (8), and the output end of the cylinder (9) slides through the second workbench (8); a lifting plate (10) is fixed on the output end of the cylinder (9), wherein a transmission frame (12) is fixed on the upper side of the lifting plate (10), and the transmission frame (12) is provided on one side of the guide frame (6); a discharge rack (13) is fixed on the upper side of the second workbench (8), wherein the discharge rack (13) is provided on one side of the transmission rack (12).

2. The processing equipment for high-strength stainless steel seamless pipes as described in claim 1, characterized in that: Said clamping frame (5) comprises a first frame body (51), a first electric push rod (52), a supporting plate (53), a pressing plate (54), rollers (55), a second electric push rod (56), a second motor (57) and a friction wheel (58), the lead screw (3) passes through the inside of the first frame body (51) through thread engagement, a groove corresponding to the slide rail (4) is provided at the lower end of the first frame body (51), and the slide rail (4) slidably passes through the groove; the first frame body (51) is shaped like a Chinese character 'kou', a plurality of said first electric push rods (52) are fixed on the lower side surface inside the first frame body (51), and the supporting plate (53) is fixed at the output end of the first electric push rod (52); the pressing plate (54) is arranged on the upper side of the supporting plate (53), and both ends of the supporting plate (53) and the pressing plate (54) are slidably connected with the inner wall of the first frame body (51); there are three rollers (55), two of said rollers (55) are fixed on the upper side surface of the supporting plate (53), the remaining one roller (55) is fixed on the lower side surface of the pressing plate (54), and the three rollers (55) are arranged in a triangular shape; the upper side surface of the pressing plate (54) is fixed with the output end of the second electric push rod (56), a plurality of second electric push rods (56) are provided, and the base of each second electric push rod (56) is fixed with the upper side surface inside the first frame body (51); the second motor (57) is fixed at the middle part of one side surface of the pressing plate (54), and the output end of the second motor (57) is rotationally connected with the pressing plate (54); the friction wheel (58) is fixed at the output end of the second motor (57), a plurality of convex blocks are arranged on the outer side surface of the friction wheel (58), and the outer side surface of the friction wheel (58) is in contact with the outer side surface of the mandrel (7).

3. The processing equipment for high-strength stainless steel seamless pipes as described in claim 2, characterized in that: Said guide frame (6) comprises a second frame body (61), a first concave wheel (62), a second concave wheel (63), a third motor (64) and a gear set (65), the second frame body (61) is fixed on the upper side surface of the first worktable (1), and the second frame body (61) is shaped like a Chinese character 'jiong'; the first concave wheel (62) and the second concave wheel (63) are rotatably installed inside the second frame body (61), the first concave wheel (62) is arranged on the upper side of the second concave wheel (63), and the first concave wheel (62) and the second concave wheel (63) are respectively in contact with the outer side surface of the capillary tube (11); the third motor (64) is fixed on the outer side surface of the second frame body (61), the output end of the third motor (64) is fixed with one end of the second concave wheel (63), and the other end of the second concave wheel (63) is connected with the first concave wheel (62) through the gear set (65).

4. The processing equipment for high-strength stainless steel seamless pipes as described in claim 1, characterized in that: The core rod (7) includes a rod body (71), a slot (72), a rod tail (73), and a cone head (74). One end of the rod body (71) is fixed with the rod tail (73), wherein the intersection of the rod tail (73) and the rod body (71) is provided with an arc-shaped slot (72), and the outer side of the rod tail (73) is provided with a groove. The other end of the rod body (71) is fixed with a cone head (74), which is cone-shaped. The outer side of the rod body (71) is fitted with a capillary tube (11).

5. The processing equipment for high-strength stainless steel seamless pipes as described in claim 3, characterized in that: The transmission frame (12) includes a side plate (121), a third concave wheel (122), and a fourth motor (123). There are several side plates (121) arranged in two rows. The third concave wheels (122) are rotatably mounted between corresponding side plates (121). There are several third concave wheels (122). One end of one of the third concave wheels (122) is fixed to the output end of the fourth motor (123), and adjacent third concave wheels (122) are connected by pulleys and belts. The fourth motor (123) is fixed on the outer side of the corresponding side plate (121).

6. The processing equipment for high-strength stainless steel seamless pipes as described in claim 5, characterized in that: The feeding rack (13) includes a first feeding rack (131) and a second feeding rack (132). The first feeding rack (131) and the second feeding rack (132) have the same structure as the transmission rack (12), and the first feeding rack (131) is fixed at the upper end of the second feeding rack (132); the second feeding rack (132) is fixed on the upper side of the second workbench (8).

7. The processing equipment for high-strength stainless steel seamless pipes as described in claim 1, characterized in that: The lifting plate (10) is set on the upper side of the second workbench, and a number of limiting posts are fixed on the lower side of the lifting plate (10), all of which slide through the second workbench (8).

8. The processing technology of the processing equipment for high-strength stainless steel seamless pipes as described in claim 6, characterized in that, The following usage steps are included: Step 1: The mandrel (7) with the capillary tube (11) is placed on the transmission frame (12) by the external mechanical claw. Then, the mandrel (7) with the capillary tube (11) is moved into the clamping frame (5) and the guide frame (6) by the transmission frame (12). One end of the mandrel (7) is fixed by the clamping frame (5). Step 2: Start the first motor (2), the second motor (57) and the third motor (64). The first motor (2) drives the lead screw (3) to rotate. During the rotation of the lead screw (3), the clamping frame (5) slides along the slide rail (4) to pull the mandrel (7) out of the capillary tube (11). At the same time, the second motor (57) drives the friction wheel (58) to rotate, so that the mandrel (7) rotates while being pulled out. The third motor (64) drives the guide frame (6) to work, driving the capillary tube (11) to move in the opposite direction of the mandrel (7), so that the capillary tube (11) moves onto the transmission frame (12). Step 3: Move the tube (11) to the first feeding frame (131) through the transmission frame (12), that is, discharge the tube (11) through the first feeding frame (131) so that it can enter the next process. Step 4: Through the cooperation of the first motor (2), lead screw (3) and clamping frame (5), the mandrel (7) is pushed into the guide frame (6), and then moved to the transmission frame (12) through the guide frame (6). Then, the lifting plate (10) is driven down by the cylinder (9), so that the transmission frame (12) moves to the side of the second feeding frame (132). Step 5: Push the mandrel (7) onto the second feeding frame (132) via the transmission frame (12), that is, discharge the mandrel (7) via the second feeding frame (132), and then send the mandrel (7) back to the piercing process position via the external feeding mechanism so that it can be reused.

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