Seamless steel pipe end cutting equipment

Abstract

The invention belongs to the technical field of seamless steel pipe production, and particularly relates to seamless steel pipe end cutting equipment which comprises a cabinet body, a working panel is fixedly connected to the cabinet body, a support is fixedly connected to one end of the working panel, a fixed shaft seat is fixedly connected to the support, a spline sleeve is rotatably connected into the fixed shaft seat, and a movable shaft seat is slidably arranged on the working panel. A main shaft is rotatably and slidably connected in the movable shaft seat, a saw blade core rod is fixedly connected to the end of the main shaft, a pressing disc is fixedly connected to the tail end of the saw blade core rod, a cutting cover box is arranged below the spline housing, a collecting box is fixedly connected to the position, below the cutting cover box, in the cabinet body, and the bottom end of the cutting cover box penetrates through the working panel and extends into the collecting box. The bottom of the cabinet body is fixedly connected with a storage box used for storing saw blades. The saw blade can be automatically replaced, the time wasted by manual saw blade replacement is saved, the seamless steel pipe production and machining efficiency is improved, the saw blade replacement structure and action are simple, the debugging and calibration difficulty is low, use is convenient, and the fault rate is low.

Description

Technical Field

[0001] The invention belongs to the technical field of seamless steel pipe production, in particular to a seamless steel pipe end cutting device. Background Art

[0002] Seamless steel pipe is a hollow long steel strip, usually made of carbon steel, stainless steel, alloy steel and other materials. Due to its excellent properties such as high strength, corrosion resistance and high temperature resistance, it is widely used in the fields of petroleum, chemical industry, electric power, construction, machinery manufacturing, etc. The production process of seamless steel pipe mainly includes hot rolling and cold rolling. Among them, cold-rolled precision seamless steel pipe has high dimensional accuracy and good surface finish, which can meet the needs of precision mechanical structures, hydraulic equipment or steel sleeves.

[0003] When cold-rolling seamless steel pipes, multiple rolling passes are performed on a continuous rolling mill so that the outer diameter and wall thickness of the steel pipe gradually meet the requirements. During the process, a pulling head needs to be reserved at the end of the steel pipe to facilitate the pulling of the seamless steel pipe through the rolling mill. After the seamless steel pipe is cold-rolled, the flatness and thickness of the end part of the steel pipe away from the pulling head cannot achieve high processing accuracy. Therefore, after the seamless steel pipe is cold-rolled, the pulling heads at both ends of the steel pipe and the parts that do not meet the quality accuracy requirements need to be cut off.

[0004] In the existing seamless steel pipe processing scenarios, manufacturers usually use band saw cutting machines or saw blade cutting machines to cut the ends of steel pipes. Among them, saw blade cutting machines are widely used because of their simple structure and easy use. However, due to the high strength of seamless steel pipes, the saw blades are greatly worn during cutting. In order to ensure that the ends of seamless steel pipes have good precision and quality after cutting, it is necessary to ensure that the saw blades are in good condition. Therefore, when cutting large quantities of continuous seamless steel pipes, it is necessary to replace the saw blades frequently to ensure good processing quality of seamless steel pipes. The existing method of replacing saw blades is mostly manual replacement, which involves manually removing the fixing nuts and chucks on the grinding wheel saw spindle and replacing the old saw blades with new ones. This method has low replacement efficiency, and frequent replacement of saw blades increases the labor intensity of workers. Manual replacement wastes a lot of time, reducing the overall production efficiency of seamless steel pipes. Therefore, a cutting machine that can automatically and efficiently replace saw blades is needed.

[0005] For example, a Chinese patent with publication number CN118024114A discloses an automatic saw blade replacement system, including a ground rail assembly, a loading and unloading assembly is arranged on the ground rail assembly, and the loading and unloading assembly can move horizontally left and right on the ground rail assembly, a grinding wheel saw is arranged on the front side of the ground rail assembly, a robot transport assembly is arranged on the rear side of the ground rail assembly, and a saw blade storage rack and an old saw blade storage mechanism are arranged on the periphery of the robot transport assembly. The automatic replacement of the saw blade is achieved through the action of the robot transport assembly, so as to improve the efficiency of saw blade replacement and reduce the labor intensity and labor cost of workers.

[0006] However, the above patent uses a free and flexible mechanical arm to replace the saw blade instead of manual replacement of the saw blade, which will also lead to a complex structure of the cutting equipment, resulting in high production and use costs of the cutting equipment. The high cost will reduce the manufacturer's profits and is not conducive to the manufacturer's competition in the market.

[0007] Moreover, the complex replacement structure and complex replacement action of the above-mentioned patent require complex and precise control, so the above-mentioned patent requires tedious debugging, calibration and testing to operate normally, which increases the difficulty of using the equipment. Moreover, the complex and precise control often has poor working stability. Even a small error will cause equipment operation failure and affect normal use.

[0008] At the same time, in the process of cutting the seamless steel pipe, a large amount of cutting debris will be generated, causing the debris to splash, which is not only easy to accidentally injure the operator, but also inconvenient to clean up.

[0009] A Chinese patent with publication number CN220259691 U discloses a seamless steel pipe end cutting device, comprising a cutting table, a placing seat and a mounting frame are installed on the top of the cutting table, the placing seat is located in the middle of the mounting frame, a clamping mechanism is installed on the top of the rear side of the placing seat, a hydraulic cylinder 1 is installed on the top of the mounting frame, the output shaft of the hydraulic cylinder 1 extends through the mounting frame and is installed with a steel pipe cutter, and a vacuum cleaner is installed at both ends of the placing seat; a splash-proof frame is installed at the outer end of the steel pipe cutter, and the seamless steel pipe end cutting device drives the splash-proof frame and the steel pipe cutter to move downward by the hydraulic cylinder 1, so that the front end of the splash-proof frame blocks the front end of the steel pipe end, and is squeezed and fitted with the steel pipe by an arc-shaped slider, and then the steel pipe cutter is continuously driven downward by the hydraulic cylinder 1 to cut the steel pipe, and then the debris is absorbed by the vacuum cleaner.

[0010] However, during the cutting process of the above-mentioned patent, the anti-splash frame still cannot completely cover the cutting position, and a small amount of debris still splashes around without restriction. In addition, the above-mentioned patent cannot reduce the temperature of the saw blade during cutting, resulting in a large degree of wear on the saw blade, which makes the saw blade need to be replaced frequently. Summary of the invention

[0011] The invention overcomes the deficiencies of the prior art and solves the technical problem of making the movable shaft seat slide on the slide rail and guiding the movable shaft seat by the guide groove so that the movable shaft seat can automatically change its position during the lateral sliding process, thereby realizing the function of automatically replacing the saw blade, saving the time wasted in manually replacing the saw blade, improving the production and processing efficiency of seamless steel pipes, saving manpower costs and reducing the labor intensity of workers, and simplifying the structure and action of replacing the saw blade, thereby reducing the production and use costs of the equipment, and simplifying the action of replacing the saw blade, thereby reducing the difficulty of debugging and calibration. The invention is easy to use and has a low failure rate, which is convenient for manufacturers to use and control production costs, thereby improving the market competitiveness of manufacturers. By setting a cutting cover box, the cutting processing position can be effectively covered to avoid metal debris generated during the cutting process from splashing everywhere, and by setting a nozzle, the cutting processing position can be effectively cooled and cooled, the wear of the saw blade is reduced, thereby reducing the replacement frequency of the saw blade, reducing the use cost and improving the processing efficiency, and the water sprayed from the nozzle can suppress the splashing of debris.

[0012] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: a seamless steel pipe end cutting device, comprising:

[0013] A cabinet body, a working panel is fixedly connected to the cabinet body, one end of the working panel is fixedly connected to a bracket, a fixed shaft seat is fixedly connected to the bracket, and a spline sleeve is rotatably connected in the fixed shaft seat.

[0014] The bracket is fixedly connected with a driving motor which is transmission-connected to the spline sleeve;

[0015] A movable shaft seat, the working panel is slidably provided with a movable shaft seat, a main shaft is rotatably and slidably connected in the movable shaft seat, a saw blade core rod is fixedly connected to the end of the main shaft, and a pressure plate is fixedly connected to the end of the saw blade core rod;

[0016] A cutting cover box is provided below the spline sleeve, a feed port is provided on the cutting cover box, a collecting box is fixedly connected below the cutting cover box in the cabinet, and nozzles are fixedly connected at both sides of the upper end of the cutting cover box;

[0017] The bottom end of the cutting cover box passes through the working panel and extends into the collection box, the saw blade is clamped and fixed between the pressure plate and the spline sleeve, and a storage box for storing saw blades is fixedly connected to the bottom of the cabinet.

[0018] The saw blade core rod can pass through the central hole of the saw blade.

[0019] Furthermore, the working panel is respectively fixedly connected to two slide rails at both sides of the movable shaft seat, each of the slide rails is slidably connected to a slider, the two sides of the end of the movable shaft seat away from the bracket are rotatably connected to the two sliders, and the bottom side of the working panel is respectively fixedly connected to two guide rail plates at both sides of the movable shaft seat, each of the guide rail plates is provided with a guide groove, and the two sides of the bottom of the movable shaft seat close to the bracket are respectively slidably connected to the two guide grooves.

[0020] Furthermore, a movable axle seat allowing the movable axle seat to pass through is fixedly connected to the working panel at a position away from the bracket, and a chute box is fixedly connected to one end of the cabinet away from the bracket.

[0021] Furthermore, a group of screw seats are fixedly connected at both ends of each slide rail on the working panel, a screw is rotatably connected between each group of screw seats, and each screw end is transmission-connected to a screw motor fixedly connected to the screw seat, a cylinder is fixedly connected in the movable shaft seat below the main shaft, the extended end of the cylinder passes through the movable shaft seat and is fixedly connected to a clamping block, and the clamping block is rotatably connected to the main shaft.

[0022] Furthermore, a pressure sensor is fixedly connected between the clamping block and the extended end of the cylinder, and a group of travel switches is fixedly connected to one side of each slide rail, and each of the travel switches is located at a specified start and stop position of the slider.

[0023] Furthermore, the material storage box is arranged at an angle, and a support rod is fixedly connected to the center of the bottom of the material storage box. A group of saw blades are evenly distributed and sleeved on the support rod, and a pad made of lightweight material is arranged between each saw blade, and a plurality of spring pieces are evenly distributed and fixedly connected to the outside of the saw blade core rod.

[0024] Furthermore, a plurality of spline grooves are evenly distributed on the outer side of the saw blade core rod, each of the spline grooves can accommodate a corresponding support rod, and the end of the saw blade core rod away from the pressure plate is provided with teeth between every two spline grooves, and splines are provided on the inner wall of the spline sleeve at the corresponding position of each spline groove, and the diameter of one end of the saw blade core rod where the teeth are provided is smaller than the diameter of the end of the saw blade core rod close to the pressure plate.

[0025] Furthermore, a plurality of mounting grooves are evenly distributed at one end of the saw blade core rod near the pressure plate, a centering clamp block is slidably connected in each mounting groove, a push rod is slidably connected at the axis of the saw blade core rod, the tip of the push rod abuts against the inclined surface of each centering clamp block, and the push plug is made of soft elastic material and is truncated cone-shaped.

[0026] Furthermore, two second electric drive levers are fixedly connected to the bottom of the working panel on both sides of the collecting box, and the extended end of each of the second electric drive levers passes through the working panel and is fixedly connected to the cutting cover box. Two symmetrical clamping blocks are slidably connected in the cutting cover box, and avoidance grooves are provided on the clamping blocks and the cutting cover box at positions corresponding to the saw blade. Two first electric drive levers are fixedly connected to both sides of the cutting cover box, and the extended end of each of the first electric drive levers extends into the cutting cover box and is fixedly connected to the corresponding clamping block.

[0027] Furthermore, a sewage valve passing through the cabinet is fixedly connected at the bottom of the collecting box, a water tank is fixedly connected at one side of the collecting box in the cabinet, water pumps are fixedly connected on both sides of the water tank, and each water pump is connected to the corresponding nozzle via a hose.

[0028] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0029] (1) By making the movable shaft seat slide on the slide rail and using the guide groove to guide the movable shaft seat, the movable shaft seat can automatically change its position during the lateral sliding process, thereby realizing the function of automatically replacing the saw blade, saving the time wasted in manually replacing the saw blade, improving the production and processing efficiency of seamless steel pipes, saving labor costs and reducing the labor intensity of workers.

[0030] (2) The structure and action of replacing the saw blade are simple, which reduces the production and use costs of the equipment. The action of replacing the saw blade is simplified, thereby reducing the difficulty of debugging and calibration. It is easy to use and has a low failure rate, which is convenient for manufacturers to use and control production costs, thereby improving the market competitiveness of manufacturers.

[0031] (3) By setting up a cutting cover box, the cutting processing position can be effectively covered to prevent metal debris generated during the cutting process from splashing everywhere. By setting up a nozzle, the cutting processing position can be effectively cooled, reducing the wear of the saw blade and thus reducing the replacement frequency of the saw blade, thereby reducing the cost of use and improving processing efficiency. The water sprayed from the nozzle can suppress the splashing of debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0033] Figure 2 This is the rear view of this patent.

[0034] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0035] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0036] Figure 5 It is a schematic diagram of the structure of the spline sleeve and the saw blade core rod.

[0037] Figure 6 It is a schematic diagram of the structure of the saw blade core rod.

[0038] Figure 7 This is a schematic diagram of the structure of the patent during the blanking action.

[0039] Figure 8 It is a structural diagram of the material taking action.

[0040] Fig. 9 for Figure 8 A partial enlarged view of point C in the middle.

[0041] Fig.10 This is a schematic diagram of the structure of the material storage box during the material taking action of this patent.

[0042] Fig.11 This is a schematic diagram of the structure of the cutting cover box of this patent.

[0043] Description of reference numerals: cabinet 10; working panel 11; movable shaft seat 12; spindle 13; clamping block 14; pressure sensor 15; cylinder 16; pressure plate 17; saw blade core rod 18; spring piece 19; tooth 20; centering clamping block 21; ejector rod 22; ejector plug 23; spline groove 24; spline sleeve 25; spline 26; fixed shaft seat 27; protective cover 28; drive motor 29; bracket 30; screw rod seat 31; screw rod 32; screw rod motor 33; slide rail 34; mounting groove 35; slider 36; guide rail plate 37; guide groove 38; chute box 39; travel switch 40; storage box 41; support rod 42; cushion block 43; saw blade 44; blanking cover plate 45; cutting cover box 46; feed inlet 47; clamping block 48; avoidance groove 49; first electric drive lever 50; second electric drive lever 51; collection box 52; drain valve 53; water tank 54; water pump 55; nozzle 56; hose 57. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0045] Embodiment 1:

[0046] like Figure 1-11As shown, a seamless steel pipe end cutting device includes a cabinet 10, a working panel 11 is fixedly connected to the cabinet 10, two slide rails 34 are symmetrically distributed and fixedly connected to the working panel 11, each slide rail 34 is slidably connected to a slider 36, a movable shaft seat 12 is rotatably connected between the two sliders 36, the bottom of the working panel 11 is located on both sides of the movable shaft seat 12 and is fixedly connected to two guide plates 37, each guide plate 37 is provided with a guide groove 38, the two sides of the bottom end of the movable shaft seat 12 are respectively slidably connected to the two guide grooves 38, the top of the movable shaft seat 12 is slidably and rotatably connected to the main shaft 13, the end of the main shaft 13 is fixedly connected to the saw blade core rod 18, the end of the saw blade core rod 18 is fixedly connected to the saw blade core rod 18, and four spring pieces 19 are evenly distributed and fixedly connected to the outside of the saw blade core rod 18.

[0047] A bracket 30 is fixedly connected to one end of the working panel 11, a fixed shaft seat 27 is fixedly connected to the bracket 30, and a protective cover 28 covering the saw blade 44 is fixedly connected to the side of the fixed shaft seat 27 close to the movable shaft seat 12. A spline sleeve 25 is rotatably connected, and a drive motor 29 is fixedly connected to the bracket 30. The power output end of the drive motor 29 is transmission-connected to the spline sleeve 25. The saw blade core rod 18 can be inserted into the spline sleeve 25. An inclined storage box 41 is fixedly connected in the cabinet 10, and a support rod 42 is fixedly connected in the storage box 41. A plurality of saw blades 44 are sleeved on the outer side of the support rod 42, and a blanking cover plate 45 made of lightweight material is arranged between each saw blade 44. The present embodiment is preferably made of polystyrene foam material. The saw blade core rod 18 can be inserted into the center hole of the saw blade 44, and the saw blade 44 can be clamped and fixed between the spline sleeve 25 and the pressure plate 17. A blanking cover plate 45 that allows the movable shaft seat 12 to pass through is fixedly connected to the working panel 11 away from the bracket 30, and a chute box 39 is fixedly connected to one end of the cabinet 10 away from the bracket 30.

[0048] By making the movable shaft seat 12 slide on the slide rail 34 and using the guide groove 38 to guide the movable shaft seat 12, the movable shaft seat 12 can automatically change its position during the lateral sliding process, thereby realizing the function of automatically replacing the saw blade, saving the time wasted in manually replacing the saw blade, improving the production and processing efficiency of seamless steel pipes, saving labor costs and reducing the labor intensity of workers.

[0049] Moreover, the structure and action of replacing the saw blade are simple, which reduces the production and use costs of the equipment, is convenient for manufacturers to use and control production costs, and thus improves the market competitiveness of manufacturers. By setting the blanking cover plate 45, each saw blade 44 can be separated and set, which is convenient for replacing the saw blade. The blanking cover plate 45 is light in weight and does not affect the use of the saw blade 44. The blanking cover plate 45 can be reused without causing waste.

[0050] like Figure 1-11As shown, a cylinder 16 is fixedly connected to the movable shaft seat 12 at a side away from the bracket 30 and located below the main shaft 13. The extended end of the cylinder 16 passes through the movable shaft seat 12 and is fixedly connected to a clamping block 14. A pressure sensor 15 is fixedly connected between the clamping block 14 and the extended end of the cylinder 16. The clamping block 14 is rotatably connected to the main shaft 13. A group of screw seats 31 are fixedly connected at both ends of each slide rail 34 on the working panel 11. A screw 32 is rotatably connected between each group of screw seats 31. One end of each screw 32 extending out of the screw seat 31 is transmission-connected to a screw motor 33 fixedly connected to the screw seat 31. A group of travel switches 40 for detecting the position of a slider 36 are fixedly connected near each slide rail 34 on the working panel 11. Each travel switch 40 is located at a specified start and stop position of the slider 36.

[0051] By setting the lead screw 32 and the cylinder 16, the function of automatically replacing the saw blade can be realized by using only two sets of driving elements, which simplifies the action of replacing the saw blade and thus reduces the production cost of the equipment. The action is simple, and the action of replacing the saw blade can be accurately controlled by using the pressure sensor 15 and the travel switch 40, which greatly reduces the difficulty of debugging and calibration, is easy to use and has a low failure rate.

[0052] like Figure 1-11 As shown, four spline grooves 24 staggered with the positions of the spring pieces 19 are evenly distributed on the outside of the saw blade core rod 18, and a spline 26 is fixedly arranged at the corresponding position of each spline sleeve 25 inside the spline sleeve 25. Each spline groove 24 can allow the corresponding spline 26 and support rod 42 to pass through. A hole groove allowing the support rod 42 to pass through is opened on the pressure plate 17, and teeth 20 are arranged at the end of the saw blade core rod 18 away from the pressure plate 17 between every two spline grooves 24. The diameter of the end of the saw blade core rod 18 with the teeth 20 is smaller than the diameter of the center hole of the saw blade 44.

[0053] By setting the spline groove 24 and the teeth 20, when the saw blade is replaced, the support rod 42 can be automatically guided to penetrate into the corresponding spline groove 24, so that the saw blade core rod 18 can be stably inserted into the center hole of the saw blade 44 arranged in the storage box 41, and the saw blade can be taken out. The spline 26 can also be automatically guided to enter the spline groove 24, so that the saw blade core rod 18 and the pressure sensor 15 can be stably engaged, and the spline sleeve 25 can stably drive the saw blade to rotate for cutting.

[0054] Furthermore, by setting the diameter of the end of the saw blade core rod 18 provided with the teeth 20 to be smaller than the diameter of the end of the saw blade core rod 18 close to the pressure plate 17, it is possible to compensate for processing and assembly errors, so that the saw blade core rod 18 can be stably and accurately inserted into the center hole of the corresponding saw blade 44, further reducing the equipment's requirements for debugging and calibration accuracy, thereby reducing the failure rate and difficulty of use.

[0055] like Figure 1-11As shown, a plurality of mounting grooves 35 are evenly distributed in the circumferential direction at one end of the saw blade core rod 18 close to the pressure plate 17, a centering clamp 21 is slidably connected in each mounting groove 35, a push rod 22 is slidably connected at the axis of the saw blade core rod 18, the tip of the push rod 22 abuts against the inclined surface of each centering clamp 21, and a push plug 23 is fixedly connected to the end of the push rod 22 away from the pressure plate 17, the top plug 23 is made of soft and elastic material, and in this embodiment, it is preferably made of rubber material, and the top plug 23 is truncated cone-shaped.

[0056] By setting the push rod 22, when the pressure plate 17 and the spline sleeve 25 clamp and fix the saw blade 44, the push plug 23 can be pressed against the bottom of the spline sleeve 25, so that the push rod 22 applies an extrusion force to the centering clamp 21, and then the centering clamp 21 is synchronously extended outward to center the center hole of the saw blade 44 to ensure that the saw blade 44 and the spline sleeve 25 are in a coaxial state, avoiding eccentric shaking of the saw blade 44 during high-speed rotation, affecting the stability and service life of the equipment.

[0057] The top plug 23 made of rubber material utilizes its elastic deformation ability to apply a stable extrusion force to the centering clamp 21 without affecting the clamping of the saw blade 44 by the pressure plate 17 and the spline sleeve 25. The top plug 23 is configured to be truncated into a cone shape to reserve a deformation amount of the top plug 23 when it is squeezed, thereby preventing the top plug 23 from being stuck and unable to apply thrust to the push rod 22 due to limited deformation of the top plug 23.

[0058] like Figure 1-11 As shown, a cutting cover box 46 is provided on the working panel 11 below the spline sleeve 25, and a feed port 47 is provided on the cutting cover box 46. Two second electric drive levers 51 are fixedly connected to the bottom of the working panel 11 on both sides of the cutting cover box 46, and the extended end of each second electric drive lever 51 passes through the working panel 11 and is fixedly connected to the cutting cover box 46. Two clamping blocks 48 are symmetrically distributed and slidably connected in the cutting cover box 46, and avoidance grooves 49 are provided on the clamping blocks 48 and the cutting cover box 46 at positions corresponding to the saw blade 44. Two first electric drive levers 50 are fixedly connected to both sides of the cutting cover box 46, and the extended end of each first electric drive lever 50 extends into the cutting cover box 46 and is fixedly connected to the corresponding clamping block 48.

[0059] By providing the cutting cover box 46, the cutting processing position can be effectively covered to prevent metal debris generated during the cutting process from splashing around.

[0060] like Figure 1-11As shown, two nozzles 56 are fixedly connected to both sides of the top of the cutting cover box 46, and the water spraying end of each nozzle 56 points to the avoidance groove 49. A uniform through groove is opened on the clamping block 48. A collecting box 52 is fixedly connected to the cabinet 10 below the cutting cover box 46. The bottom end of the cutting cover box 46 passes through the working panel 11 and extends into the collecting box 52. A drain valve 53 passing through the cabinet 10 is fixedly connected to one side of the bottom of the collecting box 52. A water tank 54 is fixedly connected to one side of the collecting box 52 in the cabinet 10. Water pumps 55 are fixedly connected to both sides of the bottom of the water tank 54. Each water pump 55 is connected to the corresponding nozzle 56 through a hose 57.

[0061] By providing the nozzle 56, the cutting processing position can be effectively cooled, the wear of the saw blade can be reduced, and thus the replacement frequency of the saw blade can be reduced, thereby reducing the use cost and improving the processing efficiency. The water sprayed from the nozzle 56 can suppress the splashing of debris, so that the debris moves with the cooling water and flows into the collection box 52 for collection.

[0062] In this embodiment, initially, the operator connects the device to the power supply and control system. At this time, a saw blade 44 is connected to the outer outer surface of the saw blade core rod 18 and the saw blade core rod 18 is inserted into the spline sleeve 25. The cylinder 16 drives the pressure plate 17 through the hydraulic system to cooperate with the spline sleeve 25 to apply pressure to the saw blade 44 to ensure that the saw blade 44 is squeezed and clamped. The operator arranges the remaining saw blades 44 on the outside of the support rod 42, and places a blanking cover plate 45 between every two saw blades 44. Sufficient cooling water is injected into the water tank 54, and the preparation work is completed.

[0063] During the cutting process, the operator first starts the water pump 55 and the drive motor 29, and continuously pumps the cooling water in the water tank 54 into the nozzle 56 and sprays it out, while the drive motor 29 drives the spline sleeve 25 to rotate at high speed. The spline sleeve 25 and the saw blade core rod 18 are connected to the spline groove 24 through the spline 26, and the spline sleeve 25, the pressure plate 17, the saw blade core rod 18 and the clamped saw blade 44 rotate at high speed. The operator inserts the end of the seamless steel pipe into the feed port 47, and controls the two first electric drive levers 50 to extend outward through the control system, so that the two clamping blocks 48 clamp and fix the seamless steel pipe, and then controls the second electric drive lever 51 to extend outward to lift the cutting cover box 46 and the seamless steel pipe until the saw blade 44 gradually cuts off the end of the seamless steel pipe.

[0064] During the cutting process, the cutting cover box 46 and the clamp block 48 can effectively shield the cutting position, thereby preventing metal debris generated by cutting from splashing, and the water sprayed from the nozzle 56 can suppress the debris splashing, and the cooling water flushes and entrains the metal debris and finally flows into the collection box 52 for storage. In addition, the cooling water sprayed from the nozzle 56 can effectively cool the cutting position, reduce the wear of the saw blade, and thus reduce the replacement frequency of the saw blade, thereby improving production and processing efficiency.

[0065] After cutting, the control system controls each component to reset and wait for the next cutting process.

[0066] After a long period of cutting work, the saw blade 44 is inevitably worn out and needs to be replaced. Replacing the saw blade can be decomposed into a material dropping action, a material taking action and a material matching action.

[0067] When the saw blade needs to be replaced, the control system turns off the drive motor 29 and no longer drives the spline sleeve 25 and the saw blade core rod 18 to rotate. Then the control system no longer provides liquid pressure to the cylinder 16, and controls the screw motor 33 to drive the screw 32 to rotate, thereby driving the slider 36 and the movable shaft seat 12 to move away from the spline sleeve 25. The saw blade core rod 18 is gradually pulled out of the spline sleeve 25. When the spring piece 19 is separated from the spline sleeve 25, the compressed spring piece 19 is no longer restricted and stretches, and it can jam the edge of the center hole of the saw blade 44, so that the worn saw blade 44 moves with the saw blade core rod 18.

[0068] The movable shaft seat 12 finally moves to the end of the screw rod 32 with the saw blade core rod 18 and the worn saw blade 44. The travel switch 40 at the end of the screw rod 32 detects the approach of the slider 36 and sends a signal to the control system to shut down the screw motor 33. At this time, the movable shaft seat 12 has passed under the blanking cover plate 45, and the blanking cover plate 45 pushes the worn saw blade 44 mounted on the saw blade core rod 18 off the saw blade core rod 18 during the movement of the movable shaft seat 12, and the worn blade falls into the chute box 39 to complete the blanking action.

[0069] After the blanking action is completed, the control system controls the screw motor 33 to run in the reverse direction, and the movable shaft seat 12 moves again in the direction close to the spline sleeve 25 to realize the return stroke. During the return stroke, the movable shaft seat 12 is still guided by the guide groove 38, so that the movable shaft seat 12 is tilted at the corresponding position of the material storage box 41, so that the main shaft 13 and the saw blade core rod 18 point to the support rod 42 and coincide with the axis of the saw blade 44 stored in the material storage box 41. Another set of travel switches 40 are arranged at the corresponding positions of the main shaft 13 and the saw blade core rod 18 in this state. When the travel switch 40 detects that the slider 36 moves to this position, it automatically determines that the saw blade core rod 18 has reached the predetermined position for replacing the saw blade, thereby sending a signal to make the control system shut down the screw motor 33.

[0070] Subsequently, the control system drives the cylinder 16 to extend outward, which drives the main shaft 13 to slide in the movable shaft seat 12 and gradually inserts the saw blade core rod 18 into the center hole of the top saw blade 44 in the storage box 41. During this process, the teeth 20 on the saw blade core rod 18 first contact the top ends of the four support rods 42, and as the saw blade core rod 18 continues to advance, the saw blade core rod 18 slides along the inclined surface of the teeth 20 until each support rod 42 is aligned with the corresponding spline groove 24, and the saw blade core rod 18 continues to advance, the support rod 42 passes through the spline groove 24 and finally passes through the hole groove of the pressure plate 17.

[0071] While the saw blade core rod 18 is being pushed forward, the saw blade core rod 18 is guided by the support rod 42 to accurately and smoothly penetrate into the center hole of the saw blade 44. Since the diameter of the end of the saw blade core rod 18 with the teeth 20 is smaller than the diameter of the center hole of the saw blade 44, the end of the saw blade core rod 18 can smoothly enter the center hole of the saw blade 44, thereby eliminating the influence of equipment processing and assembly accuracy on working stability and smoothness.

[0072] When the saw blade core rod 18 passes through the center hole of the saw blade 44, since the saw blades 44 are arranged at intervals with each other through the blanking cover plate 45, as the saw blade core rod 18 is advanced, the spring piece 19 is gradually squeezed and contracted by the edge of the center hole of the saw blade 44 and finally passes through the center hole of the saw blade 44. Then the control system controls the cylinder 16 to retract the spring piece 19 and it is in an extended state, restricting the edge of the center hole of the saw blade 44, so that the saw blade core rod 18 drives the saw blade 44 to move up along the axis direction of the main shaft 13 to realize the material picking action.

[0073] When the material picking action is completed, the control system starts the screw motor 33 again, causing the movable shaft seat 12 to move toward the spline sleeve 25. During this process, the movable shaft seat 12 is guided by the guide groove 38 again, causing the movable shaft seat 12 to return to a vertical state, thereby allowing the saw blade core rod 18 to carry the saw blade 44 to remain coaxial with the spline sleeve 25 again.

[0074] Subsequently, the saw blade core rod 18 is gradually inserted into the spline sleeve 25 as the movable shaft seat 12 moves. The spline 26 first contacts the inclined surface of the tooth 20, so that the saw blade core rod 18 rotates along the inclined surface of the tooth 20 to automatically adjust its position, and then the spline 26 can smoothly enter the spline groove 24 so that the spline sleeve 25 and the saw blade core rod 18 are docked and spliced, and the spring piece 19 is compressed by the spline sleeve 25 again and retracted in the spline sleeve 25. At this time, the travel switch 40 near the bracket 30 detects that the slider 36 has reached the specified position and sends a signal to make the control system turn off the screw motor 33.

[0075] At the same time, the control system synchronously controls the cylinder 16 to extend outward and apply thrust, so that the pressure plate 17 cooperates with the spline sleeve 25 to clamp and fix the saw blade 44, and the pressure sensor 15 detects the pressure applied to the saw blade 44 in real time until the specified clamping force is reached, and then controls the cylinder 16 to maintain this pressure, and uses the friction between the saw blade 44 and the pressure plate 17 and the spline sleeve 25 to limit the rotation of the saw blade 44, so that the saw blade 44 can stably rotate at high speed with the spline sleeve 25 and the saw blade core rod 18, thereby completing the engagement action.

[0076] During the material dropping process, the bottom end of the movable shaft seat 12 is guided by the guide groove 38 during the sliding process, firstly making the movable shaft seat 12 tilt at the material storage box 41, and then gradually recovering to the vertical position at the material dropping cover plate 45 to facilitate the material dropping cover plate 45 to push the saw blade down. During this process, the spring piece 19 always restricts the worn saw blade 44, ensuring that the worn saw blade 44 is always located on the saw blade core rod 18 before reaching the position of the bevel groove box 39, so as to avoid the saw blade 44 falling off prematurely and affecting subsequent actions.

[0077] During the material taking action, the saw blade 44 rises with the saw blade core rod 18, and the saw blade 44 will drag and drop the material cover plate 45. The dropped material cover plate 45 and the worn saw blade 44 fall into the chute box 39 together and are collected by the operator. The lightweight material cover plate 45 will not affect the normal use of the saw blade 44, and the material cover plate 45 can be reused.

[0078] During the matching process, when the saw blade core rod 18 is inserted into the spline sleeve 25, the top plug 23 first presses against the bottom of the spline sleeve 25, so that the tip of the push rod 22 applies an extrusion force to the four centering blocks 21, so that the four centering blocks 21 extend outward synchronously, and the centering block 21 clamps the center hole of the saw blade 44 in a centering manner, thereby avoiding the problem of eccentric shaking of the saw blade 44 during high-speed rotation due to the tolerance between the diameter of the saw blade core rod 18 and the inner diameter of the center hole of the saw blade 44. Since the material of the top plug 23 is rubber, when the cylinder 16 applies pressure, the top plug 23 is deformed under pressure, and while providing thrust to the push rod 22, it will not prevent the pressure plate 17 from further pushing the clamped saw blade 44, thereby ensuring the clamping and fixing effect of the saw blade 44.

[0079] The above-mentioned drive motor 29, screw motor 33, travel switch 40, drain valve 53, water pump 55, etc. are mature existing technologies and will not be described in detail herein.

[0080] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0081] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0082] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A seamless steel pipe end cutting device, characterized in that: The seamless steel pipe end cutting equipment comprises: A cabinet (10), wherein a working panel (11) is fixedly connected to the cabinet (10), a bracket (30) is fixedly connected to one end of the working panel (11), a fixed shaft seat (27) is fixedly connected to the bracket (30), a spline sleeve (25) is rotatably connected in the fixed shaft seat (27), and a driving motor (29) drivingly connected to the spline sleeve (25) is fixedly connected to the bracket (30); A movable shaft seat (12), the working panel (11) is slidably provided with the movable shaft seat (12), a main shaft (13) is rotatably and slidably connected inside the movable shaft seat (12), a saw blade core rod (18) is fixedly connected to the end of the main shaft (13), and a pressure plate (17) is fixedly connected to the end of the saw blade core rod (18); A cutting cover box (46), a cutting cover box (46) is arranged below the spline sleeve (25), a feed port (47) is opened on the cutting cover box (46), a collecting box (52) is fixedly connected to the cabinet (10) below the cutting cover box (46), and nozzles (56) are fixedly connected to both sides of the upper end of the cutting cover box (46); wherein the bottom end of the cutting cover box (46) passes through the working panel (11) and extends into the collecting box (52), the saw blade (44) is clamped and fixed between the pressure plate (17) and the spline sleeve (25), a material storage box (41) for storing the saw blade (44) is fixedly connected to the bottom of the cabinet (10), and the saw blade core rod (18) can pass through the center hole of the saw blade (44).

2. The seamless steel pipe end cutting device according to claim 1, characterized in that: The working panel (11) is fixedly connected to two slide rails (34) at both sides of the movable shaft seat (12), and each of the slide rails (34) is slidably connected to a slider (36). The two sides of one end of the movable shaft seat (12) away from the bracket (30) are rotatably connected to the two sliders (36). The bottom side of the working panel (11) is fixedly connected to two guide rail plates (37) at both sides of the movable shaft seat (12), and each of the guide rail plates (37) is provided with a guide groove (38). The two sides of the bottom of the movable shaft seat (12) close to the bracket (30) are slidably connected to the two guide grooves (38).

3. The seamless steel pipe end cutting device according to claim 2, characterized in that: A movable shaft seat (12) allowing the movable shaft seat (12) to pass through is fixedly connected to the working panel (11) at a position away from the bracket (30), and a chute box (39) is fixedly connected to one end of the cabinet (10) away from the bracket (30).

4. The seamless steel pipe end cutting device according to claim 2, characterized in that: A group of screw seats (31) are fixedly connected at both ends of each slide rail (34) on the working panel (11), and a screw (32) is rotatably connected between each group of screw seats (31). The end of each screw (32) is drivingly connected to a screw motor (33) fixedly connected to the screw seat (31). A cylinder (16) is fixedly connected to the movable shaft seat (12) below the main shaft (13), and the extended end of the cylinder (16) passes through the movable shaft seat (12) and is fixedly connected to a clamping block (14), and the clamping block (14) is rotatably connected to the main shaft (13).

5. The seamless steel pipe end cutting device according to claim 4, characterized in that: A pressure sensor (15) is fixedly connected between the clamping block (14) and the extended end of the cylinder (16), and a group of travel switches (40) are fixedly connected on one side of each slide rail (34), and each of the travel switches (40) is located at a designated start and stop position of the slider (36).

6. The seamless steel pipe end cutting device according to claim 1, characterized in that: The material storage box (41) is arranged at an angle, and a support rod (42) is fixedly connected to the center of the bottom of the material storage box (41), a group of saw blades (44) are evenly distributed and sleeved on the support rod (42), and a cushion block (43) made of a lightweight material is arranged between each of the saw blades (44), and a plurality of spring pieces (19) are evenly distributed and fixedly connected to the outer side of the saw blade core rod (18).

7. The seamless steel pipe end cutting device according to claim 6, characterized in that: The outer side of the saw blade core rod (18) is evenly distributed with a plurality of spline grooves (24), each of the spline grooves (24) being capable of accommodating a corresponding support rod (42) to pass therethrough, the end of the saw blade core rod (18) away from the pressure plate (17) is provided with teeth (20) between every two spline grooves (24), and the inner wall of the spline sleeve (25) is provided with splines (26) at positions corresponding to each spline groove (24), and the diameter of one end of the saw blade core rod (18) provided with the teeth (20) is smaller than the diameter of the end of the saw blade core rod (18) close to the pressure plate (17).

8. The seamless steel pipe end cutting device according to claim 1, characterized in that: A plurality of mounting grooves (35) are evenly distributed at one end of the saw blade core rod (18) close to the pressure plate (17), and a centering clamp (21) is slidably connected in each mounting groove (35). A push rod (22) is slidably connected at the axis of the saw blade core rod (18), and the tip of the push rod (22) abuts against the inclined surface of each centering clamp (21). The push plug (23) is made of soft elastic material and is truncated cone-shaped.

9. The seamless steel pipe end cutting device according to claim 1, characterized in that: The bottom of the working panel (11) is located on both sides of the collecting box (52) and are respectively fixedly connected to two second electric drive levers (51), the extended end of each of the second electric drive levers (51) passes through the working panel (11) and is fixedly connected to the cutting cover box (46), and two mutually symmetrical clamping blocks (48) are slidably connected in the cutting cover box (46), and avoidance grooves (49) are provided on the clamping blocks (48) and the cutting cover box (46) at positions corresponding to the saw blade (44), and two first electric drive levers (50) are respectively fixedly connected on both sides of the cutting cover box (46), and the extended end of each of the first electric drive levers (50) extends into the cutting cover box (46) and is fixedly connected to the corresponding clamping block (48).

10. The seamless steel pipe end cutting device according to claim 1, characterized in that: The bottom of the collection box (52) is fixedly connected to a sewage valve (53) passing through the cabinet (10); a water tank (54) is fixedly connected to one side of the collection box (52) in the cabinet (10); water pumps (55) are fixedly connected to both sides of the water tank (54); each water pump (55) is connected to a corresponding nozzle (56) via a hose (57).

Images