Steel pipe chamfering machine capable of feeding uniformly

Abstract

The invention discloses a steel pipe chamfering machine capable of uniformly feeding, and relates to the technical field of steel pipe chamfering machines. The chamfering device comprises a chamfering cutter, the chamfering cutter is in sliding connection with the inner wall of a cutter head, the side, away from the chamfering cutter, of the cutter head extends into shells and is rotationally connected with the inner walls of the shells, a chamfering driving assembly is arranged at the interval of the two shells and is in transmission connection with the cutter head, and the slope face of the chamfering cutter makes contact with the inner side of a steel pipe firstly; then, the plane of the chamfering cutter is in contact with the end face of the steel pipe, the chamfering cutter is L-shaped, and a slope surface is arranged at the bent part, so that the chamfering and the head flattening can be performed while the chamfering is performed, the cutter does not need to be adjusted during head flattening or the head flattening cutter does not need to be replaced, the chamfering and the head flattening can be completed at one time, and cuttings can be bent and deformed to the end part of the steel pipe to form burrs during chamfering; the machining sequence of chamfering and then flattening is adopted, so that burrs can be removed while flattening is carried out, and the influence of the burrs formed by chamfering on the surface flatness of the steel pipe is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe chamfering machines, and in particular to a steel pipe chamfering machine. Background Art

[0002] The steel pipe chamfering machine is a double-head chamfering machine, which is used to chamfer and flatten the welding grooves at both ends of the steel pipe as required. In order to solve the problem of processing the ends of thick-walled steel pipes, the steel pipe chamfering machine is equipped with two chamfering knives and flattening knives on the faceplate;

[0003] When in use, the operator places the steel pipe on a fixed frame, fixes the steel pipe with the fixed frame, then moves the chamfering machine body to make the chamfering machine body match the end face of the steel pipe, and then starts the chamfering machine body to chamfer the end face of the steel pipe. When the steel pipe is fixed, there may be a large angle between the axis of the steel pipe and the axis of the chamfering machine body, resulting in poor chamfering effect of the chamfering machine body on the end face of the steel pipe and low processing accuracy of the steel pipe, so we proposed a steel pipe chamfering machine. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a steel pipe chamfering machine, comprising:

[0005] A base having a groove formed on a top of the base and a slider symmetrically arranged inside the groove;

[0006] A fixing mechanism, which has a fixing structure for fixing both ends of the steel pipe;

[0007] A chamfering mechanism, the chamfering mechanism having a chamfering structure for flattening the two ends of the steel pipe and chamfering the inner side of the steel pipe, and a housing arranged outside the chamfering mechanism;

[0008] The base is slidably connected to the two sliders through the grooves, the two sliders are fixedly connected to the outer surface of the shell on one side away from the base, the inner wall of the shell is rotatably connected to the chamfering mechanism, and the fixing mechanism is fixedly connected to the inner wall of the shell;

[0009] Among them, the chamfering mechanism includes:

[0010] A chamfering knife, which is arranged in an L shape and has a slope at the bend, for flattening and chamfering the end of the steel pipe, and a knife disc arranged inside the housing;

[0011] A chamfering drive assembly, the chamfering drive assembly having a power structure for driving the cutter disc to rotate;

[0012] The chamfering knife is slidably connected to the inner wall of the cutter disc, and the side of the cutter disc away from the chamfering knife extends to the inside of the shell and is rotatably connected to the inner wall of the shell. The chamfering drive assembly is arranged at the interval between the two shells and is transmission-connected to the cutter disc. During processing, the chamfering drive assembly is started, the chamfering drive assembly drives the cutter disc to rotate, and the rotation of the cutter disc drives the chamfering knife to rotate. The slope surface of the chamfering knife first contacts the inner side of the steel pipe, thereby processing the slope surface on the inner side of the steel pipe. As the chamfering knife is continuously fed, the chamfering is completed, and then the plane of the chamfering knife contacts the end face of the steel pipe, thereby grinding the end of the steel pipe flat. , complete flat head, because the chamfering tool is set to L shape and there is a slope at the bending part, it can chamfer and flat head at the same time, there is no need to adjust the tool during flat head, or replace the flat head tool, can complete chamfering and flat head at one time, when chamfering, the chips may bend and deform to form burrs on the end of the steel pipe, the processing sequence of chamfering first and then flat head can remove such burrs at the same time as flat head, and avoid the burrs formed by chamfering affecting the surface flatness of the steel pipe, and the slope angle of the chamfering tool is fixed, which can ensure the same chamfering angle of the same batch of steel pipes during batch processing, thereby increasing the seamlessness of subsequent steel pipe connections.

[0013] Furthermore, a slide groove is provided on the side of the cutter disc away from the shell, and the outer surface of the chamfering knife is slidably connected to the inner wall of the slide groove, and a pitch-adjusting screw is provided on the outer side of the cutter disc, and the pitch-adjusting screw extends to the inside of the slide groove on the side close to the cutter disc and is rotatably connected to the inner wall of the slide groove, the outer surface of the pitch-adjusting screw is rotatably connected to the inner wall of the cutter disc, and the pitch-adjusting screw is threadedly connected to the chamfering knife. Due to the different sizes of steel pipes to be processed, the axial distance between the chamfering knife and the cutter disc also needs to be adjusted. During adjustment, the pitch-adjusting screw is rotated, and the rotation of the pitch-adjusting screw drives the chamfering knife threadedly connected thereto to move inside the slide groove. When the side of the chamfering knife perpendicular to the cutter disc is attached to the inner wall of the steel pipe, the adjustment of one chamfering knife is completed, and then all chamfering knives are adjusted in turn, so that the chamfering machine can chamfer steel pipes of different sizes, and the threaded connection is relatively firm, and the chamfering knife is not easy to loosen during rotation, thereby ensuring the accuracy of chamfering the steel pipe.

[0014] Furthermore, baffles are symmetrically arranged inside the slide groove, and the baffles are made of rubber material, and the side of the baffle away from the knife disc has wavy folds, the ends of the two baffles away from each other are fixedly connected to the inner wall of the slide groove, and the ends of the two baffles close to each other are fixedly connected to the outer surface of the chamfering knife, and the side surfaces of the two baffles slide with the inner wall of the slide groove within a limited position. When the chamfering knife is adjusted, the chamfering knife moves, driving one baffle to compress and the other baffle to stretch. The folds of the compressed baffle gather together, and the folds of the stretched baffle stretch, which can block the slide groove and prevent chips from entering during chamfering and chips from getting stuck in the pitch adjusting screw, thereby ensuring the smooth adjustment of the chamfering knife. At the same time, due to the setting of the folds, the deformation generated by the compression or stretching of the baffle can be reduced, and the fatigue damage of the baffle can be delayed, thereby extending its service life.

[0015] Furthermore, a circular plate is fixedly connected to the inner wall of the shell, and a fixing plate is fixedly connected to the side of the circular plate close to the cutter disc through a bearing. The outer surface of the fixing plate is rotatably connected to the inner wall of the cutter disc, and the side of the fixing plate away from the circular plate is fixedly connected to the outer surface of the fixing mechanism. By providing the fixing plate and fixing the circular plate to the shell, the cutter disc will not be driven to rotate when it rotates, so that the fixing mechanism will not rotate with the cutter disc, thereby increasing the circumferential stability of the fixing mechanism during chamfering, avoiding deviation or rotation of the fixing mechanism, and maintaining the accuracy and efficiency of chamfering the steel pipe.

[0016] Furthermore, the chamfering drive assembly includes a transmission gear, one of which is provided inside each of the two outer shells, a driven gear is provided at the interval between the fixed plate and the circular plate, and the transmission gear is meshingly connected to the driven gear, and the two transmission gears are fixedly connected with a first screw rod and a second screw rod on the sides close to each other, and the end of the first screw rod away from the transmission gear is fixedly connected with a gear sleeve, and the end of the second screw rod away from the transmission gear extends to the inside of the gear sleeve and slides with the gear sleeve to limit the driving of the gear sleeve to rotate, drive the first screw rod and the second screw rod to rotate, thereby driving the two transmission gears to rotate, driving the driven gear to rotate, driving the cutter disc to rotate, and the rotation of the cutter disc drives the chamfering knife to rotate, thereby chamfering the steel pipe.

[0017] Furthermore, a cover body is provided on the outside of the gear sleeve, and the inner wall of the cover body is rotatably connected to the first screw rod, a driving gear is provided inside the cover body, and the driving gear is meshingly connected to the gear sleeve, a side of the driving gear close to the second screw rod is fixedly connected to a rotating shaft, and the rotating shaft penetrates the cover body and extends to the outside thereof, an end of the rotating shaft away from the cover body is fixedly connected to a motor, and the rotating shaft is fixedly connected to an output end of the motor, an outer surface of the motor is fixedly connected to a mounting plate, and an end of the mounting plate away from the motor is fixedly connected to an outer surface of the base, and when chamfering corners, the motor is started, and the output end of the motor drives the rotating shaft to rotate, drives the driving gear to rotate, drives the gear sleeve to rotate, and finally drives the chamfering knife to rotate, thereby chamfering the steel pipe.

[0018] Furthermore, a limiting groove is provided on the inner wall of the gear sleeve, and a plurality of limiting grooves are provided along the circumferential direction of the gear sleeve. The inner walls of the plurality of limiting grooves are slidably connected to limiting blocks, and the sides of the plurality of limiting blocks away from the inner wall of the limiting groove are fixedly connected to the outer surface of the second screw rod. Since the lengths of steel pipes of different batches are different, and in order to facilitate the insertion of the steel pipe, it is necessary to adjust the spacing of the outer shell and the parts inside the outer shell for chamfering corners. When adjusting the spacing, the first screw rod and the second screw rod are away from each other, and the limiting block slides inside the limiting groove. By setting the limiting block and the limiting groove, the spacing between the first screw rod and the second screw rod can be adjusted, thereby facilitating the insertion of the steel pipe and the chamfering of steel pipes of different lengths. Moreover, the setting of the limiting groove and the limiting block can keep the first screw rod and the second screw rod rotating at a uniform speed without affecting the spacing adjustment between the two, thereby ensuring that the two ends of the steel pipe are cut at the same cutting speed, so that the two ends of the steel pipe can be evenly fed, so that the chamfering processing dimensions of the two ends of the steel pipe are exactly the same.

[0019] Furthermore, the fixing mechanism includes a cylinder, which is fixedly connected to a side of the fixing plate away from the shell, and the outer surface of the cylinder is rotatably connected to the inner wall of the cutter disc, the inner wall of the cylinder is slidably connected with a trapezoidal plate, and the trapezoidal plates are arranged along the circumference of the shell, and a gasket is fixedly connected to a side of the trapezoidal plate away from the shell, and the outer surface of the gasket is arranged in a wavy shape. When fixed, the two ends of the steel pipe are respectively inserted into the two cylinders, driving the trapezoidal plate to slide inside the cylinder, thereby driving the gasket to contact the inner wall of the steel pipe, thereby completing the fixation of the two ends of the steel pipe. The gasket made of rubber material has a large friction force, can rotate or move when the steel pipe is chamfered, and can maintain the processing quality of the steel pipe. At the same time, the gasket is wavy, and the wavy structure has a small contact area with the steel pipe, which increases the pressure between the gasket and the steel pipe, thereby increasing the friction between the gasket and the steel pipe in a changing direction, thereby achieving a better fixing effect. At the same time, fixing from the inside and fixing the steel pipe on the axis of the cutter disc can make the end face of the steel pipe evenly chamfered and improve the processing accuracy.

[0020] Furthermore, a first telescopic rod is fixedly connected to the bottom of the inner wall of the cylinder, and a connecting column is fixedly connected to one end of the first telescopic rod away from the bottom of the inner wall of the cylinder, and a plurality of connecting columns are arranged along the circumference of the first telescopic rod, and a squeezing ball is rotatably connected to the side of the connecting column away from the first telescopic rod, and the outer surface of the squeezing ball is attached to the inclined surface of the trapezoidal plate. When fixing the steel pipe, the first telescopic rod contracts, driving the connecting column to move, and the connecting column moves, driving the squeezing ball to move, and the squeezing ball squeezes the inclined surface of the trapezoidal plate, thereby driving the trapezoidal plate to move, and finally driving the gasket to contact the inner wall of the steel pipe, thereby completing the fixation. The rolling squeezing ball can convert the sliding friction between the squeezing ball and the trapezoidal plate into rolling friction, thereby reducing friction and delaying the wear of the two, and can effectively extend the service life of the fixing mechanism.

[0021] Furthermore, the two sliding blocks are fixedly connected to the sides close to each other with a second telescopic rod, the two second telescopic rods are fixed to each other at one end close to each other, and the connection between the two second telescopic rods is fixedly connected to a fixing ring, the outer surface of the fixing ring is fixedly connected to the inner wall of the base. When adjusting the distance, the two second telescopic rods are extended, driving the two sliding blocks away, the two outer shells away, thereby driving the fixing mechanism and the chamfering mechanism away, which facilitates the insertion of the steel pipe and enables the chamfering machine to process steel pipes of different lengths.

[0022] The present invention has the beneficial effects:

[0023] The present invention provides a chamfering mechanism, and the slope of the chamfering knife contacts the inner side of the steel pipe first, so that the slope is processed on the inner side of the steel pipe. As the chamfering knife is continuously fed, the chamfering is completed, and then the plane of the chamfering knife contacts the end face of the steel pipe, so that the end of the steel pipe is polished and flattened to complete the flat head. Since the chamfering knife is arranged in an L shape and a slope is arranged at the bending part, the flat head can be flattened at the same time as the chamfering, and there is no need to adjust the tool during the flat head or replace the flat head tool, and the chamfering and flat head can be completed at one time. During the chamfering, the chips may be bent and deformed to form burrs on the end of the steel pipe. The processing sequence of first chamfering and then flat head can remove such burrs while flattening the head, so as to avoid the burrs formed by the chamfering affecting the surface flatness of the steel pipe. The slope angle of the chamfering knife is fixed, so that during batch processing, the chamfering angles of the same batch of steel pipes can be guaranteed to be the same, thereby increasing the seamlessness of subsequent steel pipe connections.

[0024] The present invention arranges a limit block, a limit block and a limit groove, so that the distance between the first screw rod and the second screw rod can be adjusted, thereby facilitating the insertion of the steel pipe and the chamfering of steel pipes of different lengths. The arrangement of the limit groove and the limit block can keep the first screw rod and the second screw rod rotating at a uniform speed without affecting the adjustment of the distance between the two screw rods, thereby ensuring that the two ends of the steel pipe are cut at the same cutting speed, so that the two ends of the steel pipe can be evenly fed, and the chamfering processing dimensions of the two ends of the steel pipe are exactly the same.

[0025] The present invention arranges a gasket, and the gasket made of rubber material has a large friction force, can rotate or move when the steel pipe is chamfered, and can maintain the processing quality of the steel pipe. At the same time, the gasket is wavy, and the wavy structure has a small contact area with the steel pipe, which increases the pressure between the gasket and the steel pipe, thereby increasing the friction force between the gasket and the steel pipe in a variable direction, thereby achieving a better fixing effect. At the same time, it is fixed from the inside and the steel pipe is fixed on the axis of the cutter disc, which can make the end face of the steel pipe evenly chamfered and improve the processing accuracy.

[0026] The present invention arranges a baffle plate. When the chamfering knife is adjusted, the chamfering knife moves, driving one baffle plate to be compressed and the other baffle plate to be stretched. The folds of the compressed baffle plate gather together, while the folds of the stretched baffle plate stretch. The slide groove can be shielded to prevent chips from entering during chamfering and chips from getting stuck in the pitch adjusting screw, thereby ensuring smooth adjustment of the chamfering knife. At the same time, due to the arrangement of the folds, the deformation amount generated when the baffle plate is compressed or stretched can be reduced, and the fatigue damage of the baffle plate can be delayed, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a steel pipe chamfering machine capable of uniform cutting feed according to the present invention;

[0028] Figure 2 This is a schematic diagram of the chamfering mechanism structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the chamfering knife of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the chamfering drive assembly of the present invention;

[0031] Figure 5 This is a schematic diagram of the gear sleeve structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the gear sleeve of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0034] Figure 8 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the second telescopic rod of the present invention.

[0036] In the figure: 1. base; 2. groove; 3. shell; 4. slider; 5. chamfering mechanism; 51. knife disc; 52. chamfering knife; 53. slide groove; 55. pitch adjusting screw; 56. baffle; 57. round plate; 58. fixing plate; 59. chamfering drive assembly; 591. transmission gear; 592. driven gear; 593. first screw rod; 594. gear sleeve; 595. driving gear; 596. second screw rod; 597. rotating shaft; 598. motor; 599. mounting plate; 5910. limit groove; 5911. limit block; 5912. cover body; 6. fixing mechanism; 61. cylinder; 62. first telescopic rod; 63. connecting column; 64. extrusion ball; 65. trapezoidal plate; 66. gasket; 67. second telescopic rod; 68. fixing ring. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0038] Example 1, please refer to Figure 1-Figure 3 The present invention is a steel pipe chamfering machine, comprising:

[0039] A base 1 having a groove 2 opened on the top thereof and a slider 4 symmetrically arranged inside the groove 2;

[0040] A fixing mechanism 6, the fixing mechanism 6 having a fixing structure for fixing both ends of the steel pipe;

[0041] A chamfering mechanism 5, the chamfering mechanism 5 having a chamfering structure for flattening the two ends of the steel pipe and chamfering the inner side of the steel pipe, and a housing 3 arranged outside the chamfering mechanism 5;

[0042] The base 1 is slidably connected to the two sliders 4 through the groove 2. The sides of the two sliders 4 away from the base 1 are fixedly connected to the outer surface of the shell 3. The inner wall of the shell 3 is rotatably connected to the chamfering mechanism 5. The fixing mechanism 6 is fixedly connected to the inner wall of the shell 3.

[0043] Wherein, the chamfering mechanism 5 comprises:

[0044] A chamfering knife 52, which is L-shaped and has a slope at the bend, for flattening and chamfering the end of the steel pipe, and a knife disc 51 arranged inside the housing 3;

[0045] A chamfering drive assembly 59, wherein the chamfering drive assembly 59 has a power structure for driving the cutter disc 51 to rotate;

[0046] The chamfering knife 52 is slidably connected to the inner wall of the cutter disc 51, and the side of the cutter disc 51 away from the chamfering knife 52 extends to the inside of the shell 3 and is rotatably connected to the inner wall of the shell 3. The chamfering drive assembly 59 is arranged at the interval between the two shells 3 and is transmission-connected to the cutter disc 51. During processing, the chamfering drive assembly 59 is started, and the chamfering drive assembly 59 drives the cutter disc 51 to rotate, and the rotation of the cutter disc 51 drives the chamfering knife 52 to rotate. The slope of the chamfering knife 52 first contacts the inner side of the steel pipe, thereby processing the slope on the inner side of the steel pipe. As the chamfering knife 52 is continuously fed, the chamfering is completed, and then the plane of the chamfering knife 52 is in contact with the end face of the steel pipe, thereby The end of the steel pipe is polished and flattened. Since the chamfering tool 52 is set in an L shape and a slope is provided at the bend, the chamfering can be performed at the same time as the flattening. There is no need to adjust the tool during the flattening or replace the flattening tool. The chamfering and flattening can be completed at one time. During chamfering, the chips may be bent and deformed to form burrs on the end of the steel pipe. The processing sequence of chamfering first and then flattening can remove such burrs while flattening, thereby preventing the burrs formed by the chamfering from affecting the surface flatness of the steel pipe. The slope angle of the chamfering tool 52 is fixed, so that during batch processing, the chamfering angles of the same batch of steel pipes can be guaranteed to be the same, thereby increasing the seamlessness of subsequent steel pipe connections.

[0047] A slide groove 53 is provided on the side of the cutter disc 51 away from the housing 3, and the outer surface of the chamfered blade 52 is slidably connected to the inner wall of the slide groove 53. A pitch adjusting screw 55 is provided on the outer side of the cutter disc 51, and the pitch adjusting screw 55 extends to the inside of the slide groove 53 on the side close to the cutter disc 51, and is rotatably connected to the inner wall of the slide groove 53. The outer surface of the pitch adjusting screw 55 is rotatably connected to the inner wall of the cutter disc 51, and the pitch adjusting screw 55 is threadedly connected to the chamfered blade 52. Due to the different sizes of steel pipes to be processed, the axial distance between the chamfered blade 52 and the cutter disc 51 is different. The distance also needs to be adjusted. When adjusting, the pitch adjusting screw 55 is rotated. The pitch adjusting screw 55 rotates to drive the chamfering knife 52 threadedly connected to it to move inside the slide groove 53. When the chamfering knife 52 is attached to the inner wall of the steel pipe on the side perpendicular to the cutter disc 51, the adjustment of one chamfering knife 52 is completed, and then all the chamfering knives 52 are adjusted in turn, so that the chamfering machine can chamfer steel pipes of different sizes, and the threaded connection is relatively firm. The chamfering knife 52 is not easy to loosen during rotation, ensuring the accuracy of chamfering the steel pipe.

[0048] Baffles 56 are symmetrically arranged inside the slide groove 53. The baffles 56 are made of rubber material, and the side of the baffles 56 away from the knife disc 51 has wavy folds. The ends of the two baffles 56 away from each other are fixedly connected to the inner wall of the slide groove 53, and the ends of the two baffles 56 close to each other are fixedly connected to the outer surface of the chamfering knife 52, and the side surfaces of the two baffles 56 slide with the inner wall of the slide groove 53. When the chamfering knife 52 is adjusted, the chamfering knife 52 moves, driving one baffle 56 to compress and the other baffle 56 to stretch. The folds of the compressed baffle 56 gather together, and the folds of the stretched baffle 56 stretch, which can block the slide groove 53 and prevent chips from entering during chamfering and preventing chips from getting stuck in the pitch adjusting screw 55, thereby ensuring the smooth adjustment of the chamfering knife 52. At the same time, due to the setting of the folds, the deformation amount generated when the baffle 56 is compressed or stretched can be reduced, and the fatigue damage of the baffle 56 can be delayed, thereby extending its service life.

[0049] A circular plate 57 is fixedly connected to the inner wall of the shell 3, and a fixed plate 58 is fixedly connected to the side of the circular plate 57 close to the cutter disc 51 through a bearing. The outer surface of the fixed plate 58 is rotatably connected to the inner wall of the cutter disc 51, and the side of the fixed plate 58 away from the circular plate 57 is fixedly connected to the outer surface of the fixing mechanism 6. By setting the fixing plate 58 and the circular plate 57 to be fixed to the shell 3, the cutter disc 51 will not drive it to rotate when it rotates, so that the fixing mechanism 6 will not rotate with the cutter disc 51, thereby increasing the circumferential stability of the fixing mechanism 6 during chamfering, avoiding the fixing mechanism 6 from being offset or rotated, and maintaining the accuracy and efficiency of the chamfering of the steel pipe.

[0050] Example 2, please refer to Figure 4-Figure 6 The chamfering drive assembly 59 includes a transmission gear 591, and a transmission gear 591 is provided inside each of the two housings 3. A driven gear 592 is provided at the interval between the fixed plate 58 and the circular plate 57, and the transmission gear 591 is meshed with the driven gear 592. The two transmission gears 591 are fixedly connected to a first screw rod 593 and a second screw rod 596 on the sides close to each other, respectively. The end of the first screw rod 593 away from the transmission gear 591 is fixedly connected to a gear sleeve 594, and the end of the second screw rod 596 away from the transmission gear 591 extends to the inside of the gear sleeve 594 and slides with the gear sleeve 594 to drive the gear sleeve 594 to rotate, drive the first screw rod 593 and the second screw rod 596 to rotate, thereby driving the two transmission gears 591 to rotate, drive the driven gear 592 to rotate, drive the cutter disc 51 to rotate, and the rotation of the cutter disc 51 drives the chamfering knife 52 to rotate, thereby chamfering the steel pipe.

[0051] A cover body 5912 is provided on the outside of the gear sleeve 594, and the inner wall of the cover body 5912 is rotatably connected to the first screw rod 593. A driving gear 595 is provided inside the cover body 5912, and the driving gear 595 is meshed with the gear sleeve 594. A rotating shaft 597 is fixedly connected to the side of the driving gear 595 close to the second screw rod 596, and the rotating shaft 597 penetrates the cover body 5912 and extends to the outside thereof. The end of the rotating shaft 597 away from the cover body 5912 is fixedly connected to a motor 598, and the rotating shaft 597 is fixedly connected to the output end of the motor 598. A mounting plate 599 is fixedly connected to the outer surface of the motor 598, and the end of the mounting plate 599 away from the motor 598 is fixedly connected to the outer surface of the base 1. When chamfering, the motor 598 is started, and the output end of the motor 598 drives the rotating shaft 597 to rotate, drives the driving gear 595 to rotate, drives the gear sleeve 594 to rotate, and finally drives the chamfering knife 52 to rotate, thereby chamfering the steel pipe.

[0052] The inner wall of the gear sleeve 594 is provided with a limit groove 5910, and a plurality of limit grooves 5910 are provided along the circumference of the gear sleeve 594. The inner walls of the plurality of limit grooves 5910 are all slidably connected to the limit blocks 5911, and the sides of the plurality of limit blocks 5911 away from the inner wall of the limit groove 5910 are all fixedly connected to the outer surface of the second screw rod 596. Due to the different lengths of steel pipes of different batches, and in order to facilitate the placement of the steel pipes, it is necessary to adjust the spacing of the housing 3 and the parts used for chamfering the corners inside the housing 3. When adjusting the spacing, the first screw rod 593 and the second screw rod 596 are away from each other, and the limit blocks 5911 are in the limit position. The internal sliding of the groove 5910, by setting the limit block 5911 and the limit groove 5910, allows the distance between the first screw rod 593 and the second screw rod 596 to be adjusted, thereby facilitating the insertion of the steel pipe and the chamfering of steel pipes of different lengths. The setting of the limit groove 5910 and the limit block 5911 can keep the first screw rod 593 and the second screw rod 596 rotating at a uniform speed without affecting the adjustment of the distance between the two, thereby ensuring that the two ends of the steel pipe are cut at the same cutting speed, so that the two ends of the steel pipe can be evenly fed and the chamfering dimensions of the two ends of the steel pipe are exactly the same.

[0053] Example 3, please refer to Figure 7-Figure 9The fixing mechanism 6 includes a cylinder 61, which is fixedly connected to the side of the fixing plate 58 away from the outer shell 3, and the outer surface of the cylinder 61 is rotatably connected to the inner wall of the cutter disc 51. The inner wall of the cylinder 61 is slidably connected with a trapezoidal plate 65, and a plurality of trapezoidal plates 65 are arranged along the circumference of the outer shell 3. The side of the trapezoidal plate 65 away from the outer shell 3 is fixedly connected with a gasket 66, and the outer surface of the gasket 66 is arranged in a wavy shape. When fixed, the two ends of the steel pipe are respectively inserted into the two cylinders 61, driving the trapezoidal plate 65 to slide inside the cylinder 61, thereby driving the gasket 66 and the steel pipe. The inner wall of the steel pipe is contacted to complete the fixation of the two ends of the steel pipe. The rubber gasket 66 has a large friction force and can rotate or move when the steel pipe is chamfered, so as to maintain the processing quality of the steel pipe. At the same time, the gasket 66 is wavy, and the wavy structure has a small contact area with the steel pipe, which increases the pressure between the gasket 66 and the steel pipe, thereby increasing the friction between the gasket 66 and the steel pipe in a different direction, so as to achieve a better fixing effect. At the same time, fixing from the inside and fixing the steel pipe on the axis of the cutter disc 51 can make the end face of the steel pipe evenly chamfered, thereby improving the processing accuracy.

[0054] A first telescopic rod 62 is fixedly connected to the bottom of the inner wall of the cylinder 61, and a connecting column 63 is fixedly connected to one end of the first telescopic rod 62 away from the bottom of the inner wall of the cylinder 61, and a plurality of connecting columns 63 are arranged along the circumference of the first telescopic rod 62, and a squeezing ball 64 is rotatably connected to the side of the connecting column 63 away from the first telescopic rod 62, and the outer surface of the squeezing ball 64 is attached to the inclined surface of the trapezoidal plate 65. When fixing the steel pipe, the first telescopic rod 62 contracts, driving the connecting column 63 to move, and the connecting column 63 moves, driving the squeezing ball 64 to move, and the squeezing ball 64 squeezes the inclined surface of the trapezoidal plate 65, thereby driving the trapezoidal plate 65 to move, and finally driving the gasket 66 to contact the inner wall of the steel pipe, thereby completing the fixation. The rolling squeezing ball 64 can convert the sliding friction between the squeezing ball 64 and the trapezoidal plate 65 into rolling friction, thereby reducing the friction and delaying the wear of the two, and can effectively extend the service life of the fixing mechanism 6.

[0055] The two sliding blocks 4 are fixedly connected to the sides close to each other with a second telescopic rod 67, the ends of the two second telescopic rods 67 close to each other are fixed to each other, and the connection between the two second telescopic rods 67 is fixedly connected with a fixing ring 68, the outer surface of the fixing ring 68 is fixedly connected to the inner wall of the base 1. When adjusting the distance, the two second telescopic rods 67 are extended, driving the two sliding blocks 4 away, the two outer shells 3 away, thereby driving the fixing mechanism 6 and the chamfering mechanism 5 away, which is convenient for the placement of the steel pipe and enables the chamfering machine to process steel pipes of different lengths.

[0056] When fixing the steel pipe and adjusting the distance, the two second telescopic rods 67 are extended, driving the two sliders 4 and the two shells 3 to move away, thereby driving the fixing mechanism 6 and the chamfering mechanism 5 to move away, and the steel pipe is placed on the top of the base 1, and then the two ends are inserted into the outside of the cylinder 61, and the first telescopic rod 62 is contracted, driving the connecting column 63 to move, and the connecting column 63 moves, driving the squeezing ball 64 to move, and the squeezing ball 64 squeezes the inclined surface of the trapezoidal plate 65, thereby driving the trapezoidal plate 65 to move, and finally driving the gasket 66 to contact the inner wall of the steel pipe, thereby completing the fixation;

[0057] When chamfering, the motor 598 is started, and the output end of the motor 598 drives the rotating shaft 597 to rotate, drives the driving gear 595 to rotate, drives the gear sleeve 594 to rotate, drives the first screw rod 593 and the second screw rod 596 to rotate, thereby driving the two transmission gears 591 to rotate, drives the driven gear 592 to rotate, drives the cutter disc 51 to rotate, and the rotation of the cutter disc 51 drives the chamfering knife 52 to rotate, thereby chamfering the steel pipe. Due to the different sizes of steel pipes to be processed, the axial distance between the chamfering knife 52 and the cutter disc 51 also needs to be adjusted. When adjusting, the rotation The pitch adjusting screw 55 rotates to drive the chamfering knife 52 threadedly connected thereto to move inside the slide groove 53. When the chamfering knife 52 is attached to the inner wall of the steel pipe at a side perpendicular to the cutter disc 51, the adjustment of one chamfering knife 52 is completed, and then all the chamfering knives 52 are adjusted in turn. When adjusting the chamfering knife 52, the chamfering knife 52 moves, driving one baffle plate 56 to be compressed and the other baffle plate 56 to be stretched. The folds of the compressed baffle plate 56 gather together, and the folds of the stretched baffle plate 56 are stretched, which can block the slide groove 53 and prevent chips from entering during chamfering.

[0058] It should be noted that the cutter disc is generally fed by a drive shaft connected to the cutter disc through telescopic drive. In the present invention, the feed drive shaft is connected through the bearing directly between the fixed plate 58 and the circular plate 57. Since the outer surface of the fixed plate 58 is rotatably connected to the inner wall of the cutter disc 51, the side of the cutter disc 51 away from the chamfered knife 52 extends to the inside of the housing 3 and is rotatably connected to the inner wall of the housing 3. At the same time as the above-mentioned rotational connection, due to the feeding movement of the cutter disc, axial sliding can also be achieved while rotating. The rotation can be achieved through a ball bearing, and a slide groove is set on the end surface of the bearing to achieve axial sliding, so that the drive shaft set at the bearing directly between the fixed plate 58 and the circular plate 57 passes through the driven gear 592 to telescopically drive the cutter disc 51 to move forward and backward to achieve feeding. In the present invention, the driven gear 592 rotates to drive the cutter disc 51 to rotate. A gear shaft can be set on one side of the driven gear 592 to connect with the cutter disc 51, and the gear shaft is connected to the side of the cutter disc 51 with a telescopic shaft, so that rotation is achieved while driving rotation. Of course, it is better to use synchronous drive on the cutter discs on both sides to achieve uniform feeding, so that the chamfering effect at both ends of the steel pipe can be the same, thereby improving the processing quality.

[0059] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A steel pipe chamfering machine, characterized in that: include: A base (1), the base (1) having a groove (2) opened on the top thereof, and a sliding block (4) symmetrically arranged inside the groove (2); A fixing mechanism (6), the fixing mechanism (6) having a fixing structure for fixing both ends of the steel pipe; A chamfering mechanism (5), the chamfering mechanism (5) having a chamfering structure for flattening the two ends of the steel pipe and chamfering the inner side of the steel pipe, and a housing (3) arranged outside the chamfering mechanism (5); The base (1) is slidably connected to the two sliders (4) via the groove (2); the sides of the two sliders (4) away from the base (1) are fixedly connected to the outer surface of the shell (3); the inner wall of the shell (3) is rotatably connected to the chamfering mechanism (5); and the fixing mechanism (6) is fixedly connected to the inner wall of the shell (3); Wherein, the chamfering mechanism (5) comprises: a chamfering knife (52), the chamfering knife (52) being arranged in an L shape and having a slope at the bend, for flattening and chamfering the end of the steel pipe, and a knife disc (51) arranged inside the housing (3); A chamfering drive assembly (59), wherein the chamfering drive assembly (59) has a power structure for driving the cutter disc (51) to rotate; The chamfering knife (52) is slidably connected to the inner wall of the cutter disc (51); a side of the cutter disc (51) away from the chamfering knife (52) extends to the interior of the outer shell (3) and is rotatably connected to the inner wall of the outer shell (3); the chamfering drive assembly (59) is arranged at the interval between the two outer shells (3) and is transmission-connected to the cutter disc (51).

2. A steel pipe chamfering machine according to claim 1, characterized in that: A slide groove (53) is provided on the side of the cutter disc (51) away from the housing (3), and the outer surface of the chamfered blade (52) is slidably connected to the inner wall of the slide groove (53). A pitch-adjusting screw (55) is provided on the outer side of the cutter disc (51), and the pitch-adjusting screw (55) extends into the inside of the slide groove (53) on the side close to the cutter disc (51) and is rotatably connected to the inner wall of the slide groove (53). The outer surface of the pitch-adjusting screw (55) is rotatably connected to the inner wall of the cutter disc (51), and the pitch-adjusting screw (55) is threadedly connected to the chamfered blade (52).

3. A steel pipe chamfering machine according to claim 2, characterized in that: Baffles (56) are symmetrically arranged inside the slide groove (53), and the baffles (56) are made of rubber material. The side of the baffles (56) away from the knife disc (51) has wavy folds. The ends of the two baffles (56) away from each other are fixedly connected to the inner wall of the slide groove (53), and the ends of the two baffles (56) close to each other are fixedly connected to the outer surface of the chamfering knife (52), and the side surfaces of the two baffles (56) are limitedly slid with the inner wall of the slide groove (53).

4. A steel pipe chamfering machine according to claim 3, characterized in that: A circular plate (57) is fixedly connected to the inner wall of the outer shell (3); a side of the circular plate (57) close to the cutter disc (51) is fixedly connected to a fixing plate (58) via a bearing; an outer surface of the fixing plate (58) is rotatably connected to the inner wall of the cutter disc (51); and a side of the fixing plate (58) away from the circular plate (57) is fixedly connected to the outer surface of the fixing mechanism (6).

5. A steel pipe chamfering machine according to claim 4, characterized in that: The chamfering drive assembly (59) comprises a transmission gear (591), one of the transmission gears (591) being arranged inside each of the two housings (3); a driven gear (592) being arranged at the interval between the fixed plate (58) and the circular plate (57); and the transmission gear (591) and the driven gear (592) being meshingly connected; a first screw rod (593) and a second screw rod (596) are respectively fixedly connected on the sides of the two transmission gears (591) close to each other; an end of the first screw rod (593) away from the transmission gear (591) is fixedly connected to a gear sleeve (594); and an end of the second screw rod (596) away from the transmission gear (591) extends to the inside of the gear sleeve (594) and slides with the gear sleeve (594) in a limited position.

6. A steel pipe chamfering machine according to claim 5, characterized in that: A cover body (5912) is arranged outside the gear sleeve (594), and the inner wall of the cover body (5912) is rotatably connected to the first screw rod (593). A driving gear (595) is arranged inside the cover body (5912), and the driving gear (595) is meshingly connected to the gear sleeve (594). A rotating shaft (597) is fixedly connected to the side of the driving gear (595) close to the second screw rod (596), and the rotating shaft (597) passes through the cover body (5912) and extends to the outside thereof. An end of the rotating shaft (597) away from the cover body (5912) is fixedly connected to a motor (598), and the rotating shaft (597) is fixedly connected to the output end of the motor (598). A mounting plate (599) is fixedly connected to the outer surface of the motor (598), and an end of the mounting plate (599) away from the motor (598) is fixedly connected to the outer surface of the base (1).

7. A steel pipe chamfering machine according to claim 6, characterized in that: The inner wall of the gear sleeve (594) is provided with a limiting groove (5910), and a plurality of the limiting grooves (5910) are provided along the circumference of the gear sleeve (594). The inner walls of the plurality of limiting grooves (5910) are slidably connected to the limiting blocks (5911), and the sides of the plurality of limiting blocks (5911) away from the inner wall of the limiting groove (5910) are fixedly connected to the outer surface of the second screw rod (596).

8. A steel pipe chamfering machine according to claim 7, characterized in that: The fixing mechanism (6) comprises a cylinder (61), the cylinder (61) being fixedly connected to a side of the fixing plate (58) away from the outer shell (3), and the outer surface of the cylinder (61) being rotatably connected to the inner wall of the cutter disc (51), the inner wall of the cylinder (61) being slidably connected to a trapezoidal plate (65), and a plurality of the trapezoidal plates (65) being arranged along the circumference of the outer shell (3), the side of the trapezoidal plate (65) away from the outer shell (3) being fixedly connected to a gasket (66), and the outer surface of the gasket (66) being arranged to be wavy, and when fixed, the two ends of the steel pipe are respectively inserted into the two cylinders (61).

9. A steel pipe chamfering machine according to claim 8, characterized in that: The bottom of the inner wall of the cylinder (61) is fixedly connected to a first telescopic rod (62); one end of the first telescopic rod (62) away from the bottom of the inner wall of the cylinder (61) is fixedly connected to a connecting column (63), and a plurality of connecting columns (63) are arranged along the circumference of the first telescopic rod (62); a side of the connecting column (63) away from the first telescopic rod (62) is rotatably connected to a squeezing ball (64), and the outer surface of the squeezing ball (64) is attached to the inclined surface of the trapezoidal plate (65).

10. A steel pipe chamfering machine according to claim 9, characterized in that: The two sliding blocks (4) are fixedly connected to a second telescopic rod (67) on one side close to each other, the two second telescopic rods (67) are fixed to each other at one end close to each other, and a fixing ring (68) is fixedly connected to the connection between the two second telescopic rods (67), and the outer surface of the fixing ring (68) is fixedly connected to the inner wall of the base (1).

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