Continuous punching device for steel pipe machining and using method of continuous punching device

Abstract

The invention relates to the technical field of steel pipe machining, and discloses a continuous punching device for steel pipe machining and a using method thereof.The continuous punching device for steel pipe machining comprises a workbench and further comprises an L-shaped frame which is arranged at the top of the workbench in a sliding mode; the supporting and clamping assembly is arranged at the top of the workbench, and the supporting and clamping assembly is used for supporting and clamping the steel pipe; the drilling assembly is arranged on the transverse edge of the L-shaped frame, and the drilling assembly is used for drilling the steel pipe; and the hole grinding assembly is arranged on the drilling assembly, and the hole grinding assembly is used for removing burrs adhered to the drilled hole in the steel pipe. Before drilling, the drill rod can drill a small hole in the steel pipe to eliminate stress generated during subsequent drilling of the drill cylinder, the situation that the steel pipe cracks during drilling is avoided, burrs on the hole formed in the steel pipe can be ground and removed, drilling and burr cleaning are convenient and fast, and the using effect of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe processing, and in particular to a continuous punching device for steel pipe processing and a use method thereof. Background Art

[0002] Steel pipe is a metal material made of steel with a hollow cross-section and a length much greater than the outer diameter (or side length). Its cross-section is usually round, but it can also be flat, square, or shaped. The main uses of steel pipes include conveying fluids, manufacturing mechanical parts and engineering structures, etc. Steel pipes need to be punched during processing.

[0003] The current continuous punching device for steel pipe processing does not have the function of grinding the holes after drilling, resulting in more burrs on the top and bottom of the holes, which reduces the quality of the drilling. Therefore, it is urgent to design a continuous punching device for steel pipe processing. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a continuous punching device for steel pipe processing and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A continuous punching device for steel pipe processing, comprising a workbench and:

[0007] An L-shaped frame is slidably arranged on the top of the workbench, an electric slide is horizontally installed on the side of the workbench, and the output end of the electric slide is installed on the L-shaped frame;

[0008] A support and clamping assembly is arranged on the top of the workbench and is used to support and clamp the steel pipe;

[0009] A drilling assembly is arranged on the horizontal side of the L-shaped frame and is used to drill holes in the steel pipe;

[0010] The hole grinding assembly is arranged on the hole drilling assembly, and the hole grinding assembly is used to remove the burrs adhered to the drilled holes on the steel pipe.

[0011] As a further technical solution of the present invention, the drilling assembly includes: a connecting plate, which is horizontally arranged below the horizontal side of the L-shaped frame, two symmetrically arranged electric telescopic rods are installed on the top of the horizontal side of the L-shaped frame, the output shafts of the two electric telescopic rods are installed on the top of the connecting plate, and a vacuum cleaner is installed on the vertical side of the L-shaped frame, and the suction end of the vacuum cleaner passes through the vertical side of the L-shaped frame.

[0012] As a further technical solution of the present invention, a drill cylinder is vertically arranged below the connecting plate. An extension pipe is fixedly installed at the top of the drill cylinder. A rotating column is vertically and rotatably installed at the bottom of the connecting plate. The surface of the rotating column is rotatably installed inside the extension pipe. The end of the rotating column passes through the top of the drill cylinder, and a drill rod is vertically and fixedly installed at the end of the rotating column.

[0013] As a further technical solution of the present invention, a first one-way bearing is sleeved on the surface of the rotating column. The outer ring of the first one-way bearing is fixedly sleeved with a first gear. A rotating rod is vertically and rotatably installed at the bottom of the connecting plate. A second one-way bearing is sleeved on the surface of the rotating rod. The outer ring of the second one-way bearing is fixedly sleeved with a second gear.

[0014] As a further technical solution of the present invention, a third gear and a fourth gear that mesh with each other are also rotatably installed at the bottom of the connecting plate. The third gear meshes with the second gear, and the fourth gear meshes with the first gear. A forward and reverse motor is installed at the top of the connecting plate. The output shaft of the forward and reverse motor is installed at the center of the top of the fourth gear. A first pulley is fixedly installed at the end of the rotating rod. A second pulley is fixedly sleeved on the surface of the extension pipe. A belt is sleeved on the surfaces of the first pulley and the second pulley.

[0015] As a further technical solution of the present invention, the hole grinding assembly includes: a spline sleeve. The spline sleeve is sleeved on the surface of the drill rod through splines. A plurality of first spring rods are fixedly arranged on the outer surface of the spline sleeve and are evenly distributed in a ring. The fixed end and the telescopic end of each first spring rod are slidably connected through splines, and a grinding block is fixedly installed at the telescopic end of each first spring rod.

[0016] As a further technical solution of the present invention, a plurality of extension plates are fixedly arranged on the top of the spline sleeve and are evenly distributed in a ring. A first movable rod is rotatably installed on the side of each extension plate away from the spline sleeve. A second movable rod is rotatably installed on the side of the first movable rod away from the extension plate. A counterweight block is rotatably installed at the end of the second movable rod away from the first movable rod. A second spring rod is horizontally fixedly installed on the side of the counterweight block. The fixed end of the second spring rod is fixedly installed on the surface of the drill rod. The fixed end and the telescopic end of the second spring rod are slidably connected through splines.

[0017] As a further technical solution of the present invention, the support and clamping assembly includes: a support pipe. The support pipe is horizontally arranged above the workbench. A support plate is fixedly installed at the top end of the support pipe. The end of the support plate is fixedly installed on the top of the workbench. The end of the support pipe is open. The inside of the support pipe is hollow, and a plurality of round holes are evenly distributed in a straight line at the top of the support pipe. Clamps for clamping steel pipes are installed at both ends of the workbench.

[0018] A use method of a continuous punching device for steel pipe processing includes the following steps:

[0019] S1: First, put the steel pipe on the support pipe and use the clamp to hold the steel pipe. It should be noted that the diameter of the round hole is slightly larger than the diameter of the opening on the steel pipe;

[0020] S2: Then start the electric telescopic rod and the forward and reverse motor. The electric telescopic rod moves the connecting components such as the working connection plate, the drill barrel and the drill rod downward. The forward and reverse motor rotates forward first to drive the fourth gear to rotate. The rotation of the fourth gear drives the first gear and the third gear to rotate. The rotation of the third gear drives the second gear to rotate. At this time, the rotation of the second gear will not drive the rotating rod to rotate through the second one-way bearing, while the rotation of the first gear drives the rotating column to rotate through the first one-way bearing at this time. The rotation of the rotating column drives the drill rod to rotate, so the rotation of the drill rod will first drill a small hole in the part of the steel pipe that needs to be opened, so as to realize the stress generated when opening the hole in the steel pipe later. In addition, the rotation of the drill rod will also drive the second spring rod and the spline sleeve to rotate. The rotation of the second spring rod drives the counterweight to rotate, so as to realize the centrifugal force generated by the counterweight to move the counterweight away from the drill rod. The movement of the counterweight drives the first movable rod and the second movable rod to move. The movement of the second movable rod drives the extension plate to move downward. The downward movement of the extension plate drives the spline sleeve to move downward. The downward movement of the spline sleeve drives the first spring rod and the grinding block to move downward, so that the grinding block can leave the inside of the drill barrel. And the rotation of the spline sleeve will drive the first spring rod to rotate. The rotation of the first spring rod drives the grinding block to rotate. The centrifugal force generated when the grinding block rotates will make the grinding block move away from the spline sleeve, which is convenient for subsequent grinding of the burrs formed after opening the hole in the drill barrel. When the drill rod opens a hole in the steel pipe, reverse the rotation of the forward and reverse motor. To sum up, at this time, the rotation of the first gear will not drive the rotating column to rotate through the first one-way bearing, so the spline sleeve, the grinding block and the counterweight will reset and enter the inside of the drill barrel again. And the rotation of the second gear will drive the rotating rod to rotate through the second one-way bearing at this time. The rotation of the rotating rod drives the first pulley to rotate. The rotation of the first pulley drives the belt to rotate. The rotation of the belt drives the second pulley to rotate. The rotation of the second pulley drives the extension pipe to rotate. The rotation of the extension pipe drives the drill barrel to rotate, so that the drill barrel can open a hole in the part of the steel pipe that has been drilled with a small hole, and the waste chips generated during the opening will fall into the inside of the support pipe through the round hole, so as to realize anti-deformation and anti-cracking when opening a hole in the steel pipe;

[0021] S3: When the drilling is completed and the electric telescopic rod drives the components such as the drill barrel to move upward, first, the forward and reverse motor rotates forward to drive the drill rod to rotate, then the components such as the spline sleeve will move downward, and the waste will be pushed away from the drill rod and enter the inside of the support pipe. The diameter of the multiple grinding blocks that leave the inside of the drill barrel will become larger, and the burrs at the bottom of the opening part will be ground and deburred. When the deburring of the bottom of the opening is completed, the drill rod can be stopped to reset the parts such as the spline sleeve, then move the drill barrel upward to the upper part of the opening, and finally rotate the drill rod again to realize the grinding of the top burrs of the opening part by the grinding block, so as to complete the deburring treatment of the opened part.

[0022] The beneficial effects of the present invention are:

[0023] First, in the present invention, through the settings of the drilling component and the hole grinding component, not only can the drill rod make a small hole in the steel pipe before drilling to eliminate the stress generated during the subsequent hole opening of the drill cylinder, avoiding the cracking of the steel pipe during hole opening, but also it can grind and remove the burrs on the holes after hole opening on the steel pipe, and the drilling and burr cleaning are convenient and fast, thus improving the use effect of the device;

[0024] Second, in the present invention, through the setting of the support and clamping component, when opening a hole in the steel pipe, the support pipe can support the hole opening position of the steel pipe, ensuring that the steel pipe will not deform during hole opening. In addition, the debris generated during drilling will enter the inside of the support pipe through the round hole, ensuring the cleanliness inside the steel pipe after hole opening, and thus improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a continuous hole punching device for steel pipe processing proposed by the present invention;

[0026] Figure 2 is a rear view structural diagram of a continuous hole punching device for steel pipe processing proposed by the present invention;

[0027] Figure 3 is a schematic upward view structural diagram of the L-shaped frame of a continuous hole punching device for steel pipe processing proposed by the present invention;

[0028] Figure 4 is Figure 3 an enlarged schematic diagram of part A in

[0029] Figure 5 is a schematic diagram of the drill cylinder and its connection structure of a continuous hole punching device for steel pipe processing proposed by the present invention;

[0030] Figure 6 is a schematic cross-sectional view structural diagram of the drill cylinder of a continuous hole punching device for steel pipe processing proposed by the present invention;

[0031] Figure 7 is a schematic structural diagram of a continuous hole punching device for steel pipe processing proposed by the present invention after removing the drill cylinder.

[0032] In the figure: 1, workbench; 2, L-shaped frame; 3, electric telescopic rod; 4, connecting plate; 5, support pipe; 6, round hole; 7, fixture; 8, vacuum cleaner; 9, electric sliding table; 10, support plate; 11, drill cylinder; 12, drill rod; 13, rotating column; 14, extension pipe; 15, first one-way bearing; 16, first gear; 17, third gear; 18, rotating rod; 19, second one-way bearing; 20, second gear; 21, belt; 22, first pulley; 23, second pulley; 24, spline sleeve; 25, grinding block; 26, first spring rod; 27, extension plate; 28, first movable rod; 29, second movable rod; 30, counterweight; 31, second spring rod. Specific embodiments

[0033] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to the attached Figure 1 - attached Figure 7 , a continuous punching device for steel pipe processing, including a workbench 1, and further including: an L-shaped frame 2, a support and clamping assembly, a drilling assembly, and a hole grinding assembly. The L-shaped frame 2 is slidably arranged on the top of the workbench 1. An electric sliding table 9 is horizontally installed on the side of the workbench 1, and the output end of the electric sliding table 9 is installed on the L-shaped frame 2. The support and clamping assembly is arranged on the top of the workbench 1, and the support and clamping assembly is used for supporting and clamping the steel pipe. The drilling assembly is arranged on the horizontal side of the L-shaped frame 2, and the drilling assembly is used for drilling the steel pipe. The hole grinding assembly is arranged on the drilling assembly, and the hole grinding assembly is used for removing the burrs adhered to the holes drilled on the steel pipe;

[0036] The above-mentioned device can not only make the drill rod 12 make small holes in the steel pipe before drilling to eliminate the stress generated during the subsequent opening of the drill cylinder 11, avoiding the cracking of the steel pipe during opening, but also grind and remove the burrs on the holes after the holes are opened on the steel pipe.

[0037] Please refer to the attached Figure 1 - attached Figure 7, in a preferred embodiment, the drilling assembly includes: a connecting plate 4, which is horizontally arranged below the horizontal side of the L-shaped frame 2. Two symmetrically arranged electric telescopic rods 3 are installed at the top of the horizontal side of the L-shaped frame 2, and the output shafts of the two electric telescopic rods 3 are installed at the top of the connecting plate 4. A dust collector 8 is installed on the vertical side of the L-shaped frame 2. The dust suction end of the dust collector 8 passes through the vertical side of the L-shaped frame 2. A drill barrel 11 is vertically arranged below the connecting plate 4. An extension pipe 14 is fixedly installed at the top of the drill barrel 11. A rotating column 13 is vertically rotatably installed at the bottom of the connecting plate 4. The surface of the rotating column 13 is rotatably installed inside the extension pipe 14. The end of the rotating column 13 passes through the top of the drill barrel 11, and a drill rod 12 is vertically fixedly installed at the end of the rotating column 13. A first one-way bearing 15 is sleeved on the surface of the rotating column 13, and an outer ring of the first one-way bearing 15 is fixedly sleeved with a first gear 16. A rotating rod 18 is vertically rotatably installed at the bottom of the connecting plate 4. A second one-way bearing 19 is sleeved on the surface of the rotating rod 18, and an outer ring of the second one-way bearing 19 is fixedly sleeved with a second gear 20. A third gear 17 and a fourth gear that mesh with each other are also rotatably installed at the bottom of the connecting plate 4. The third gear 17 meshes with the second gear 20, and the fourth gear meshes with the first gear 16. A forward and reverse motor is installed at the top of the connecting plate 4, and the output shaft of the forward and reverse motor is installed at the center of the top of the fourth gear. A first belt pulley 22 is fixedly installed at the end of the rotating rod 18. A second belt pulley 23 is fixedly sleeved on the surface of the extension pipe 14. A belt 21 is sleeved on the surfaces of the first belt pulley 22 and the second belt pulley 23;

[0038] Specifically, the drill barrel 11 can be used to open holes in the steel pipe part with small holes already opened, and the waste chips generated during the hole opening process will fall into the support pipe 5 through the round hole 6, so as to prevent deformation and cracking when opening holes in the steel pipe.

[0039] Please refer to the attached Figure 1 - attached Figure 7 , in a preferred embodiment, the hole grinding assembly includes: a spline sleeve 24, which is sleeved on the surface of the drill rod 12 through splines. A plurality of first spring rods 26 are fixedly arranged on the outer surface of the spline sleeve 24 in a uniformly distributed circular pattern. The fixed end and the telescopic end of each first spring rod 26 are slidably connected through splines, and a grinding block 25 is fixedly installed at the telescopic end of each first spring rod 26. A plurality of extension plates 27 are fixedly arranged at the top of the spline sleeve 24 in a uniformly distributed circular pattern. A first movable rod 28 is rotatably installed on the side of each extension plate 27 away from the spline sleeve 24. A second movable rod 29 is rotatably installed on the side of the first movable rod 28 away from the extension plate 27. A counterweight 30 is rotatably installed at the end of the second movable rod 29 away from the first movable rod 28. A second spring rod 31 is horizontally fixedly installed on the side of the counterweight 30. The fixed end of the second spring rod 31 is fixedly installed on the surface of the drill rod 12, and the fixed end and the telescopic end of the second spring rod 31 are slidably connected through splines;

[0040] Preferably, not only can the burrs at the bottom of the opening part be polished, but also the grinding block 25 can polish the burrs at the top of the opening part, so that the burrs of the opened part can be completely removed.

[0041] Please refer to the attached Figure 1 - attached Figure 2 In a preferred embodiment, the support and clamping assembly includes: a support tube 5, which is horizontally arranged above the workbench 1. A support plate 10 is fixedly installed at the top end of the support tube 5, and the end of the support plate 10 is fixedly installed on the top of the workbench 1. The end of the support tube 5 is open, the inside of the support tube 5 is hollow, and a plurality of circular holes 6 are evenly distributed in a straight line at the top of the support tube 5. Clamps 7 for clamping steel pipes are installed at both ends of the workbench 1.

[0042] Furthermore, when the steel pipe is being drilled, the support tube 5 can support the opening of the steel pipe, ensuring that the steel pipe will not deform during the drilling of the steel pipe. In addition, the debris generated during drilling will enter the inside of the support tube 5 through the circular holes 6, ensuring the cleanliness of the inside of the steel pipe after the opening.

[0043] The working principle of the present invention:

[0044] First, put the steel pipe on the support tube 5 and use the clamp 7 to clamp the steel pipe. It should be noted that the diameter of the circular hole 6 is slightly larger than the diameter of the opening on the steel pipe;

[0045] Then start the electric telescopic rod 3 and the forward and reverse motor. The electric telescopic rod 3 works to drive the connecting components such as the connecting plate 4, the drill barrel 11, and the drill rod 12 to move downward. The forward and reverse motor first rotates forward to drive the fourth gear to rotate. The fourth gear rotates to drive the first gear 16 and the third gear 17 to rotate. The third gear 17 rotates to drive the second gear 20 to rotate. At this time, the rotation of the second gear 20 will not drive the rotating rod 18 to rotate through the second one-way bearing 19, while the rotation of the first gear 16 will drive the rotating column 13 to rotate through the first one-way bearing 15. The rotating column 13 rotates to drive the drill rod 12 and the rotating rod 18. Then the rotation of the rotating rod 18 will first make a small hole in the part of the steel pipe that needs to be opened, so as to relieve the stress generated during the subsequent drilling of the steel pipe;

[0046] In addition, the rotation of the drill pipe 12 will also drive the rotation of the second spring rod 31 and the spline sleeve 24. The rotation of the second spring rod 31 drives the rotation of the counterweight 30, so that the centrifugal force generated by the counterweight 30 causes the counterweight 30 to move away from the drill pipe 12. The movement of the counterweight 30 drives the movement of the first movable rod 28 and the second movable rod 29. The movement of the second movable rod 29 drives the extension plate 27 to move downward. The downward movement of the extension plate 27 drives the spline sleeve 24 to move downward. The downward movement of the spline sleeve 24 drives the first spring rod 26 and the grinding block 25 to move downward, so that the grinding block 25 can be separated from the inside of the drill cylinder 11. And the rotation of the spline sleeve 24 will drive the rotation of the first spring rod 26. The rotation of the first spring rod 26 drives the rotation of the grinding block 25. The centrifugal force generated when the grinding block 25 rotates will cause the grinding block 25 to move away from the spline sleeve 24, which is convenient for subsequent grinding of the burrs formed after opening the hole in the drill cylinder 11;

[0047] After the drill pipe 12 opens a hole in the steel pipe, the forward and reverse motor rotates in the reverse direction. As can be seen from the above, at this time, the rotation of the first gear 16 will not drive the rotation of the rotating column 13 through the first one-way bearing 15. Then the spline sleeve 24, the grinding block 25 and the counterweight 30 will reset and enter the inside of the drill cylinder 11 again. And at this time, the rotation of the second gear 20 will drive the rotation of the rotating rod 18 through the second one-way bearing 19. The rotation of the rotating rod 18 drives the rotation of the first pulley 22. The rotation of the first pulley 22 drives the rotation of the belt 21. The rotation of the belt 21 drives the rotation of the second pulley 23. The rotation of the second pulley 23 drives the rotation of the extension pipe 14. The rotation of the extension pipe 14 drives the rotation of the drill cylinder 11, so that the drill cylinder 11 can open a hole in the part of the steel pipe with a small hole opened, and the waste chips generated during the hole opening will fall into the inside of the support pipe 5 through the round hole 6, so as to realize anti-deformation and anti-cracking during the hole opening of the steel pipe;

[0048] When the drill cylinder 11 and other components are moved upward by the electric telescopic rod 3 after the drilling is completed, first make the forward and reverse motor rotate forward to drive the rotation of the drill pipe 12, then the spline sleeve 24 and other components will move downward, and the waste will be pushed away from the drill pipe 12 and enter the inside of the support pipe 5. The diameter of the multiple grinding blocks 25 that leave the inside of the drill cylinder 11 will become larger, and the burrs at the bottom of the hole opening part will be ground and deburred. When the deburring of the bottom of the hole opening is completed, the rotation of the drill pipe 12 can be stopped, the spline sleeve 24 and other parts can be reset, then the drill cylinder 11 can be moved upward to the upper part of the hole opening, and finally the drill pipe 12 can be rotated again to realize the grinding of the top burrs of the hole opening part by the grinding block 25, so that the part after the hole opening can be completely deburred, thereby improving the use effect of the equipment.

[0049] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A continuous punching device for steel pipe processing, comprising a workbench (1), characterized in that, It further includes: An L-shaped frame (2), the L-shaped frame (2) is slidably arranged on the top of the workbench (1), an electric slide table (9) is horizontally installed on the side of the workbench (1), and the output end of the electric slide table (9) is installed on the L-shaped frame (2); A support and clamping assembly, the support and clamping assembly is arranged on the top of the workbench (1), and the support and clamping assembly is used for supporting and clamping a steel pipe; A drilling assembly, the drilling assembly is arranged on the horizontal side of the L-shaped frame (2), and the drilling assembly is used for drilling the steel pipe; A hole grinding assembly, the hole grinding assembly is arranged on the drilling assembly, and the hole grinding assembly is used for removing burrs adhered to the drilled hole on the steel pipe.

2. The continuous punching device for steel pipe processing according to claim 1, wherein, The drilling assembly includes: a connecting plate (4), the connecting plate (4) is horizontally arranged below the horizontal side of the L-shaped frame (2), two symmetrically arranged electric telescopic rods (3) are installed on the top of the horizontal side of the L-shaped frame (2), and the output shafts of the two electric telescopic rods (3) are installed on the top of the connecting plate (4). A dust collector (8) is installed on the vertical side of the L-shaped frame (2), and the dust suction end of the dust collector (8) passes through the vertical side of the L-shaped frame (2).

3. The continuous punching device for steel pipe processing according to claim 2, characterized in that, A drill cylinder (11) is vertically arranged below the connecting plate (4), an extension pipe (14) is fixedly installed at the top of the drill cylinder (11), a rotating column (13) is vertically rotatably installed at the bottom of the connecting plate (4), the surface of the rotating column (13) is rotatably installed inside the extension pipe (14), the end of the rotating column (13) passes through the top of the drill cylinder (11), and a drill rod (12) is vertically fixedly installed at the end of the rotating column (13).

4. A continuous punching device for steel pipe processing according to claim 3, wherein, A first one-way bearing (15) is sleeved on the surface of the rotating column (13), a first gear (16) is fixedly sleeved on the outer ring of the first one-way bearing (15), a rotating rod (18) is vertically rotatably installed at the bottom of the connecting plate (4), a second one-way bearing (19) is sleeved on the surface of the rotating rod (18), and a second gear (20) is fixedly sleeved on the outer ring of the second one-way bearing (19).

5. The continuous punching device for steel pipe processing according to claim 4, characterized in that, A third gear (17) and a fourth gear that mesh with each other are also rotatably installed at the bottom of the connecting plate (4), the third gear (17) meshes with the second gear (20), and the fourth gear meshes with the first gear (16). A positive and negative motor is installed on the top of the connecting plate (4), and the output shaft of the positive and negative motor is installed at the center of the top of the fourth gear. A first belt pulley (22) is fixedly installed at the end of the rotating rod (18), a second belt pulley (23) is fixedly sleeved on the surface of the extension pipe (14), and a belt (21) is sleeved on the surfaces of the first belt pulley (22) and the second belt pulley (23).

6. The continuous punching device for steel pipe processing according to claim 5, wherein, The hole grinding assembly includes: a spline sleeve (24), the spline sleeve (24) is sleeved on the surface of the drill rod (12) through splines, a plurality of first spring rods (26) evenly distributed in a ring are fixed on the outer surface of the spline sleeve (24), the fixed end and the telescopic end of each first spring rod (26) are slidably connected through splines, and a grinding block (25) is fixedly installed at the telescopic end of each first spring rod (26).

7. The continuous punching device for steel pipe processing according to claim 6, wherein, A plurality of extension plates (27) evenly distributed in a ring are fixedly arranged at the top of the spline sleeve (24). A first movable rod (28) is rotatably installed on the side of each extension plate (27) away from the spline sleeve (24). A second movable rod (29) is rotatably installed on the side of the first movable rod (28) away from the extension plate (27). A counterweight block (30) is rotatably installed at the end of the second movable rod (29) away from the first movable rod (28). A second spring rod (31) is horizontally and fixedly installed on the side of the counterweight block (30). The fixed end of the second spring rod (31) is fixedly installed on the surface of the drill pipe (12). The fixed end and the telescopic end of the second spring rod (31) are slidably connected through splines.

8. The continuous punching device for steel pipe processing according to claim 7, characterized in that, The support and clamping assembly includes: a support pipe (5), the support pipe (5) is horizontally arranged above the workbench (1), a support plate (10) is fixedly installed at the top end of the support pipe (5), the end of the support plate (10) is fixedly installed on the top of the workbench (1), and the end of the support pipe (5) is open. The inside of the support pipe (5) is hollow, and a plurality of round holes (6) evenly distributed in a straight line are formed in the top of the support pipe (5). Clamps (7) for clamping steel pipes are installed at both ends of the workbench (1).

9. The usage method of a continuous punching device for steel pipe processing according to claim 8, characterized in that, Comprising the following steps: S1: First, put the steel pipe on the support pipe (5) and use the clamp (7) to clamp the steel pipe. It should be noted that the diameter of the round hole (6) is slightly larger than the diameter of the hole opened on the steel pipe; S2: Then start the electric telescopic rod (3) and the forward and reverse motor. The electric telescopic rod (3) works to move the connecting components such as the connecting plate (4), the drill barrel (11), and the drill rod (12) downward. The forward and reverse motor first rotates forward to drive the fourth gear to rotate. The rotation of the fourth gear drives the first gear (16) and the third gear (17) to rotate. The rotation of the third gear (17) drives the second gear (20) to rotate. At this time, the rotation of the second gear (20) will not drive the rotating rod (18) to rotate through the second one-way bearing (19), while the rotation of the first gear (16) drives the rotating column (13) to rotate through the first one-way bearing (15). The rotation of the rotating column (13) drives the drill rod (12) and the rotating rod (18). Then the rotation of the rotating rod (18) will first make a small hole in the part of the steel pipe that needs to be drilled to relieve the stress generated during the subsequent drilling of the steel pipe. In addition, the rotation of the drill rod (12) will also drive the second spring rod (31) and the spline sleeve (24) to rotate. The rotation of the second spring rod (31) drives the counterweight (30) to rotate, so that the centrifugal force generated by the counterweight (30) makes the counterweight (30) move away from the drill rod (12). The movement of the counterweight (30) drives the first movable rod (28) and the second movable rod (29) to move. The movement of the second movable rod (29) drives the extension plate (27) to move downward. The downward movement of the extension plate (27) drives the spline sleeve (24) to move downward. The downward movement of the spline sleeve (24) drives the first spring rod (26) and the grinding block (25) to move downward, so that the grinding block (25) can leave the inside of the drill barrel (11). And the rotation of the spline sleeve (24) will drive the first spring rod (26) to rotate. The rotation of the first spring rod (26) drives the grinding block (25) to rotate. The centrifugal force generated when the grinding block (25) rotates will make the grinding block (25) move away from the spline sleeve (24), which is convenient for subsequent grinding of the burrs formed after drilling the drill barrel (11). When the drill rod (12) drills a hole in the steel pipe, make the forward and reverse motor rotate in the reverse direction. To sum up, at this time, the rotation of the first gear (16) will not drive the rotating column (13) to rotate through the first one-way bearing (15). Then the spline sleeve (24), the grinding block (25), and the counterweight (30) will reset and enter the inside of the drill barrel (11) again. And the rotation of the second gear (20) will drive the rotating rod (18) to rotate through the second one-way bearing (19). The rotation of the rotating rod (18) drives the first pulley (22) to rotate. The rotation of the first pulley (22) drives the belt (21) to rotate. The rotation of the belt (21) drives the second pulley (23) to rotate. The rotation of the second pulley (23) drives the extension pipe (14) to rotate. The rotation of the extension pipe (14) drives the drill barrel (11) to rotate, so that the drill barrel (11) can drill the part of the steel pipe with a small hole, and the waste chips generated during drilling will fall into the inside of the support pipe (5) through the round hole (6) to prevent deformation and cracking during the drilling of the steel pipe; S3: When the drilling is completed and the components such as the drill cylinder (11) are driven to move upward by the electric telescopic rod (3), first, the positive and negative motor rotates forward to drive the drill rod (12) to rotate. Then, components such as the spline sleeve (24) will move downward, pushing the waste away from the drill rod (12) and into the inside of the support pipe (5). The diameters of the multiple grinding blocks (25) inside the drill cylinder (11) will become larger, grinding and deburring the burrs at the bottom of the opening part. When the deburring of the bottom of the opening is completed, the drill rod (12) can be stopped from rotating, the components such as the spline sleeve (24) can be reset, then the drill cylinder (11) is moved upward to above the opening, and finally the drill rod (12) is rotated again to enable the grinding blocks (25) to grind the burrs at the top of the opening part, so as to complete the deburring treatment of the part after the opening.

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