A pipe inner wall processing structure and a numerically controlled machine tool and method having the same

Abstract

The present invention discloses a structure for processing the inner wall of a pipe, and relates to the technical field of pipe processing, including: a base shaft, a docking seat, and a processing seat. A mutually connected negative pressure cylinder and a joint are arranged in the docking seat, and the negative pressure cylinder is connected and telescopically connected to the negative pressure tube of the base shaft. On the one hand, it can not only adapt to the outward movement of the lifting plate to fit the inner wall of the steel pipe, but also enable the joint to accommodate the drill needle, so that the debris drilled by the drill needle enters the negative pressure tube through the joint for discharge, which is conducive to the centralized collection of debris and will not cause environmental pollution in the subsequent transportation process; on the other hand, after the debris enters the negative pressure tube, the advantage that the negative pressure tube and the hole are still in relative positions is utilized, and the chimera of the side-sliding processing seat enters the negative pressure tube, so that the grinding head of the chimera grinds and removes the burrs in the hole, and then discharges the grinded debris into the negative pressure tube through the chip discharge port of the chimera. Drilling, chip removal and grinding are integrated, and there is no need for subsequent repositioning and grinding, which greatly improves the processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pipe processing, and in particular to a pipe inner wall processing structure. Background Art

[0002] To drill holes in the steel pipe radially, the drill rod needs to pass through the diameter line of the center of the steel pipe; in the axial direction, it is required to be perpendicular to the axis. In addition, multiple holes need to be drilled on a steel pipe, and the center lines of all the holes must be parallel. Since the axis is a virtual line, it is very difficult to make multiple holes pass through the steel pipe circle and be perpendicular to the axis. The traditional method is to draw lines and mark the positions where holes are to be drilled on the steel pipe. Then, the marked points are drilled with a drill. In fact, this processing method is very rough and has low precision, and it mainly relies on the experience of workers.

[0003] The existing Chinese patent announcement number: CN104841973B discloses a steel pipe drilling device, including a workbench, on which a number of drilling units are arranged, the drilling units including a drilling mechanism, a conical column for supporting the steel pipe, and a clamp for clamping the steel pipe; the clamp includes a first arc-shaped clamp plate and a second arc-shaped clamp plate, the first arc-shaped clamp plate and the second arc-shaped clamp plate are arranged opposite to each other, and the first arc-shaped clamp plate and the second arc-shaped clamp plate can be displaced along the radial direction of the column; the drilling mechanism includes a drill bit, which extends along the radial direction of the column. This solution uses a support plate to support the steel pipe, effectively preventing the wall of the steel pipe from sinking, and can perform drilling operations on steel pipes of different diameters and lengths.

[0004] However, after the above patent solution completes the drilling, a large amount of debris will remain in the channel of the steel pipe, and the debris will often fall when the steel pipe is moved, affecting the working environment. In addition, the drilling starts from the outer surface of the steel pipe and drills inward, which makes most of the burrs in the hole located on the inner wall of the pipe. In the subsequent deburring work, it takes time and effort to find the drilling position, which affects the processing efficiency. Summary of the invention

[0005] One of the purposes of the present invention is to solve the problem in the prior art that after drilling is completed, the debris in the steel pipe channel cannot be processed and it is difficult to locate when removing burrs in the hole, thereby affecting the working environment and processing efficiency.

[0006] A second object of the present invention is to provide a CNC machine tool having a tube inner wall processing structure.

[0007] The third object of the present invention is to provide a method for treating the inner wall of a pipe.

[0008] In order to achieve one of the above purposes, the present invention adopts the following technical solution: a tube inner wall processing structure, which includes: a base shaft, a docking seat, and a processing seat.

[0009] The base shaft is provided with: a lifting plate, a lifting motor, and a negative pressure pipe. The lifting plate is radially arranged on the outer surface of the base shaft. The lifting motor is installed in the base shaft, and the lifting end of the lifting motor is connected to the lifting plate. The negative pressure pipe is arranged in the base shaft.

[0010] The docking seat is embedded in the lifting plate, and the docking seat has a negative pressure cylinder and a joint. The negative pressure cylinder is telescopically connected to the negative pressure tube, the negative pressure cylinder is connected to the negative pressure tube, and the joint is installed on the negative pressure cylinder.

[0011] The processing seat is installed in the lifting plate, and the processing seat comprises: a telescopic motor, a chimera, a base, a rotating motor, a telescopic pole, a grinding head, and a chip removal port.

[0012] The chimeric body is slidably engaged with the side sliding opening provided at the side end of the negative pressure cylinder. The chimeric body is provided with an open opening, and the base is arranged under the opening of the chimeric body. The rotating motor is installed in the base. The telescopic pole is connected to the power end of the rotating motor. The grinding head is connected to the telescopic pole, and the grinding head is located in the opening. One end of the chip removal opening is connected to the opening, and when the telescopic motor pushes the chimeric body into the negative pressure cylinder, the other end of the chip removal opening is connected to the negative pressure cylinder.

[0013] In the above technical scheme, when it is necessary to drill a hole in a steel pipe, the embodiment of the present invention first inserts the base shaft into the channel of the steel pipe, and after the position of the joint in the docking seat is aligned with the position where the hole is to be drilled in the steel pipe, the lifting motor in the base shaft is started to push the lifting and moving outward. During this process, the negative pressure cylinder in the docking seat extends out of the negative pressure tube in the base shaft, and the negative pressure cylinder and the negative pressure tube remain connected. After that, when the joint of the docking seat is in close contact with the inner wall of the steel pipe, the lifting motor is stopped.

[0014] Then start the hydraulic cylinder on the outside of the steel pipe to drive the drill bit to move down and contact the outer wall of the steel pipe. At the same time, start the driving motor to drive the drill bit to rotate and drill holes in the steel pipe. After the drill bit has completed drilling the steel pipe, the drill bit will poke into the channel of the steel pipe. At this time, the drill bit penetrates into the joint, so that the debris passes through the joint and falls into the negative pressure cylinder. The negative pressure generated by the negative pressure tube in the base shaft absorbs the debris in the negative pressure tube, so that the debris enters the negative pressure tube for collection and discharge.

[0015] After the drill bit is separated from the steel pipe by the hydraulic cylinder, the telescopic motor of the processing seat is started to drive the chimera to slide along the side sliding port of the negative pressure cylinder and enter the negative pressure cylinder. At this time, the chip discharge port of the chimera is connected with the negative pressure cylinder. Then the rotating motor and the telescopic pole are started to make the grinding head contact with the hole on the inner wall of the steel pipe, and the burrs in the hole are ground and removed. The ground chips fall into the open mouth of the chimera, and the negative pressure of the negative pressure cylinder sucks the open chips from the chip discharge port into the negative pressure tube for collection and discharge.

[0016] Furthermore, in an embodiment of the present invention, the negative pressure tube is connected to an external suction pump.

[0017] Furthermore, in an embodiment of the present invention, the joint is coaxial with the negative pressure cylinder, and the upper end of the joint is an arc-shaped surface that adapts to the inner wall of the steel pipe.

[0018] Furthermore, in an embodiment of the present invention, the joint is made of rubber material to avoid rigid collision and damage to the inner wall of the steel pipe when the joint contacts the inner wall of the steel pipe.

[0019] Furthermore, in an embodiment of the present invention, a joint is provided at the side end of the negative pressure cylinder, and the joint is located opposite to the side sliding opening. The joint is used to cooperate with the chimeric body, so that after the chimeric body is engaged in the joint, the grinding head in the chimeric body is coaxial with the joint.

[0020] Furthermore, in an embodiment of the present invention, a hydraulic cylinder is provided above the base shaft, a driving motor is connected below the hydraulic cylinder, a drill bit is connected below the power end of the driving motor, the drill bit is driven to contact the steel pipe by starting the hydraulic cylinder, and then the drill bit is driven to rotate by starting the driving motor to drill holes in the steel pipe.

[0021] The beneficial effects of the present invention are:

[0022] The present invention arranges a negative pressure cylinder and a joint that are interconnected in the docking seat, and connects the negative pressure cylinder with the negative pressure tube of the base shaft and performs telescopic connection. On the one hand, it can not only adapt to the outward movement of the lifting plate to fit the inner wall of the steel pipe, but also after the steel pipe is drilled by the drill needle, the joint can accommodate the drill needle, so that the debris drilled by the drill needle can enter the negative pressure tube through the joint for discharge, which is conducive to the centralized collection of the debris and will not leave the debris in the steel pipe channel to cause environmental pollution in the subsequent transportation process.

[0023] On the other hand, the holes drilled by the drill needle will have many burrs, which are distributed on the inner wall of the tube. Therefore, after the debris enters the negative pressure tube, the chimera of the side-sliding processing seat enters the negative pressure tube by taking advantage of the relative position of the negative pressure tube and the hole, so that the grinding head of the chimera can grind and remove the burrs of the hole, and then discharge the grinding debris into the negative pressure tube and the negative pressure tube through the chip discharge port of the chimera. Drilling, chip removal and grinding are integrated, and there is no need for subsequent repositioning and grinding, which greatly improves processing efficiency.

[0024] In order to achieve the second of the above-mentioned purposes, the present invention adopts the following technical solution: a CNC machine tool, which has the pipe inner wall processing structure described in one of the above-mentioned invention purposes.

[0025] Furthermore, in an embodiment of the present invention, the CNC machine tool includes a processing bed, a sliding seat is slidably connected to the right end of the processing bed, and the base shaft is connected to the sliding seat.

[0026] Furthermore, in an embodiment of the present invention, a power motor is fixedly connected to the left end of the processing bed, a chuck is connected to the power motor side, and a claw is provided on the chuck to clamp the steel pipe.

[0027] Furthermore, in an embodiment of the present invention, a dust removal ring is provided between the sliding seat and the chuck, the upper end of the dust removal ring is provided with a through opening for the drill needle to pass through, an open annular groove formed on the inner wall of the dust removal ring is connected to the through opening, and the lower end of the annular groove is connected to one or more dust suction pipes.

[0028] When the base shaft passes through the steel pipe channel, the steel pipe passes through the dust removal ring. Then, when the hydraulic cylinder drives the drill bit downward, the steel pipe will contact the outer wall of the steel pipe after passing through the opening of the dust removal ring. When the drill bit drills the steel pipe, the ring groove of the dust removal ring blocks the splashing of debris generated by drilling. At the same time, the dust suction pipe under the ring groove absorbs the debris in the ring groove, so that the debris generated during drilling will not splash onto the equipment around the steel pipe, effectively improving the working environment.

[0029] Furthermore, in an embodiment of the present invention, a size reaction component is rotationally connected to the through-port position of the dust removal ring, and a bias spring is provided at the rotational connection between the size reaction component and the through-port side wall.

[0030] The size reaction component has a rotating shaft, which is rotatably connected to the through port through a bearing, a transmission gear connected to the rotating shaft, a rack meshed under the transmission gear, and an indicator needle fixed under the rack.

[0031] The side end of the dust removal ring is provided with a scale plate (the scale plate is engraved with size values), and the scale plate corresponds to the indicator needle on the left and right.

[0032] The rotating shaft is also connected to a swing arm, which is tilted. Side wheels are provided on the upper and lower sides of the swing arm, and a center column is connected to the side wheels.

[0033] The front-to-back gap between the upper and lower center columns is smaller than the drill needle.

[0034] When using a CNC machine tool to drill a steel pipe, it is often not that one worker uses one CNC machine tool, but that multiple workers share one CNC machine tool. In this environment, each worker is required to confirm the size of the drill bit according to the size of the steel pipe hole. However, due to negligence, it is not uncommon to use a drill bit of the wrong size. In view of this problem, the present invention solves it by setting a simple size reaction component. Specifically, when the drill bit enters the opening of the dust removal ring, the front and rear ends of the drill bit will squeeze the center column, forcing the center column to drive the rotating shaft to rotate, adjusting the front and rear gaps to adapt to the size of the drill bit, and when the rotating shaft rotates, it will drive the transmission gear to rotate, so that the rack moves forward, and then drives the indicator needle to move forward to correspond to the size value engraved on the scale plate. In this way, it is helpful to measure the size of the drill bit before the drill bit contacts the steel pipe, which is convenient for the staff to observe and reduce the probability of misoperation. In addition, this structure is very simple and practical, which is conducive to general promotion.

[0035] In order to achieve the third object, the present invention adopts the following technical solution: a method for treating the inner wall of a pipe, applied to the inner wall treatment structure of the pipe described in one of the above invention objects or the CNC machine tool described in the second invention object, wherein the method comprises the following steps:

[0036] When it is necessary to drill a hole in the steel pipe, first insert the base shaft into the channel of the steel pipe. After the joint position in the docking seat is aligned with the position where the hole is to be drilled in the steel pipe, start the lifting motor in the base shaft to push the lifting and moving outward. During this process, the negative pressure cylinder in the docking seat extends out of the negative pressure tube in the base shaft, and the negative pressure cylinder and the negative pressure tube remain connected. After that, when the joint of the docking seat is in close contact with the inner wall of the steel pipe, stop the lifting motor;

[0037] Then, the hydraulic cylinder provided on the outside of the steel pipe is started to drive the drill bit to move down and contact the outer wall of the steel pipe, and at the same time, the driving motor is started to drive the drill bit to rotate to drill holes in the steel pipe. After the drill bit has completed drilling the steel pipe, the drill bit will poke into the channel of the steel pipe. At this time, the drill bit penetrates into the joint, so that the debris falls into the negative pressure cylinder through the joint. The debris in the negative pressure cylinder is sucked by the negative pressure generated by the negative pressure tube in the base shaft, so that the debris enters the negative pressure tube for collection and discharge;

[0038] After the drill bit is separated from the steel pipe by the hydraulic cylinder, the telescopic motor of the processing seat is started to drive the chimera to slide along the side sliding port of the negative pressure cylinder and enter the negative pressure cylinder. At this time, the chip discharge port of the chimera is connected with the negative pressure cylinder. Then the rotating motor and the telescopic pole are started to make the grinding head contact with the hole on the inner wall of the steel pipe, and the burrs in the hole are ground and removed. The ground chips fall into the open mouth of the chimera, and the negative pressure of the negative pressure cylinder sucks the open chips from the chip discharge port into the negative pressure tube for collection and discharge.

[0039] Furthermore, in an embodiment of the present invention, in the above steps, while the base shaft passes through the steel pipe channel, the steel pipe passes through the dust removal ring, and then when the hydraulic cylinder drives the drill bit to move downward, the steel pipe will contact the outer wall of the steel pipe after passing through the opening of the dust removal ring, and then when the drill bit drills the steel pipe, the annular groove of the dust removal ring is used to block the debris generated by drilling from splashing, and at the same time, the debris in the annular groove is sucked through the dust suction pipe under the annular groove, so that the debris generated during drilling will not splash onto the peripheral equipment of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a plan view of a CNC machine tool with a tube inner wall processing structure according to an embodiment of the present invention.

[0041] Figure 2 It is a structural schematic diagram of the pipe inner wall processing structure according to an embodiment of the present invention.

[0042] Figure 3 It is a structural schematic diagram of a docking seat and a processing seat according to an embodiment of the present invention.

[0043] Figure 4 It is a schematic diagram of the motion effect of the pipe inner wall processing structure according to an embodiment of the present invention.

[0044] Figure 5 It is a schematic diagram of the movement effect of the processing seat in the pipe inner wall processing structure according to an embodiment of the present invention.

[0045] Figure 6 It is a schematic diagram of the structure of the dust removal ring according to an embodiment of the present invention.

[0046] Figure 7 It is a three-dimensional schematic diagram of a size reaction component according to an embodiment of the present invention.

[0047] Figure 8 It is a schematic diagram of the coordination effect between the size reaction component and the drill bit according to an embodiment of the present invention.

[0048] In the attached figure

[0049] 100. Steel pipe

[0050] 10. Base shaft 11. Lifting plate 12. Lifting motor

[0051] 13. Negative pressure tube

[0052] 20. Docking station 21. Negative pressure cylinder 22. Connector

[0053] 23. Side sliding opening 24. Joint opening

[0054] 30. Processing seat 31. Telescopic motor 32. Chimera

[0055] 33. Opening 34. Base 35. Rotating motor

[0056] 36. Telescopic pole 37. Grinding head 38. Chip removal port

[0057] 40. Hydraulic cylinder 41. Drive motor 42. Drill needle

[0058] 50. Processing bed 51. Sliding seat

[0059] 60. Power motor 61. Chuck 62. Claw

[0060] 70, dust removal ring 71, port 72, ring groove

[0061] 73. Dust pipe 74. Scale plate

[0062] 80. Dimensional response component 81. Rotating shaft 82. Transmission gear

[0063] 83, rack 84, indicator needle 85, swing arm

[0064] 86, side wheels 87, center column DETAILED DESCRIPTION

[0065] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are presented to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known pipe inner wall treatment methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0069] Embodiment 1:

[0070] A pipe inner wall treatment structure, wherein Figure 1 , 2 As shown, it includes: a base shaft 10, a docking seat 20, and a processing seat 30.

[0071] like Figure 2 As shown, the base shaft 10 is provided with: a lifting plate 11, a lifting motor 12, and a negative pressure pipe 13. The lifting plate 11 is radially arranged on the outer surface of the base shaft 10. The lifting motor 12 is installed in the base shaft 10, and the lifting end of the lifting motor 12 is connected to the lifting plate 11. The negative pressure pipe 13 is arranged in the base shaft 10, and the negative pressure pipe 13 is connected to the suction pump provided outside.

[0072] The docking seat 20 is embedded in the lifting plate 11, and the docking seat 20 has a negative pressure cylinder 21 and a joint 22. The negative pressure cylinder 21 is telescopically connected to the negative pressure tube 13, the negative pressure cylinder 21 is connected to the negative pressure tube 13, and the joint 22 is installed on the negative pressure cylinder 21.

[0073] like Figure 3 As shown, the processing seat 30 is installed in the lifting plate 11, and the processing seat 30 has: a telescopic motor 31, a chimera 32, a base 34, a rotating motor 35, a telescopic pole 36, a grinding head 37, and a chip removal port 38.

[0074] The chimera 32 is slidably engaged with the side sliding opening 23 provided at the side end of the negative pressure cylinder 21. The chimera 32 is provided with an open opening 33, and the base 34 is arranged under the opening 33 of the chimera 32. The rotary motor 35 is installed in the base 34. The telescopic pole 36 is connected to the power end of the rotary motor 35. The grinding head 37 is connected to the telescopic pole 36, and the grinding head 37 is located in the opening 33. One end of the chip removal opening 38 is connected to the opening 33, and when the telescopic motor 31 pushes the chimera 32 into the negative pressure cylinder 21, the other end of the chip removal opening 38 is connected to the negative pressure cylinder 21.

[0075] Implementation steps:

[0076] When it is necessary to drill a hole in the steel pipe 100, first insert the base shaft 10 into the channel of the steel pipe 100, and align the position of the joint 22 in the docking seat 20 with the position of the steel pipe 100 to be drilled. Figure 4 As shown, the lifting motor 12 in the base shaft 10 is started to push the lifting outward. During this process, the negative pressure cylinder 21 in the docking seat 20 extends out of the negative pressure tube 13 in the base shaft 10, and the negative pressure cylinder 21 remains connected with the negative pressure tube 13. After that, when the joint 22 of the docking seat 20 is in close contact with the inner wall of the steel pipe 100, the lifting motor 12 is stopped.

[0077] Then, the hydraulic cylinder 40 provided on the outside of the steel pipe 100 is started to drive the drill needle 42 to move down and contact the outer wall of the steel pipe 100. At the same time, the driving motor 41 is started to drive the drill needle 42 to rotate and drill holes in the steel pipe 100. After the drill needle 42 completes drilling the steel pipe 100, the drill needle 42 will poke into the channel of the steel pipe 100. At this time, the drill needle 42 penetrates into the joint 22, so that the debris passes through the joint 22 and falls into the negative pressure cylinder 21. The negative pressure generated by the negative pressure tube 13 in the base shaft 10 absorbs the debris in the negative pressure cylinder 21, so that the debris enters the negative pressure tube 13 for collection and discharge.

[0078] like Figure 5 As shown, after the drill bit 42 is separated from the steel pipe 100 by the hydraulic cylinder 40, the telescopic motor 31 of the processing seat 30 is started to drive the chimera 32 to slide along the side sliding port 23 of the negative pressure cylinder 21 and enter the negative pressure cylinder 21. At this time, the chip removal port 38 of the chimera 32 is connected with the negative pressure cylinder 21. Then the rotating motor 35 and the telescopic pole 36 are started to make the grinding head 37 contact with the hole on the inner wall of the steel pipe 100, and the burrs in the hole are ground and removed. The ground chips fall into the open port 33 of the chimera 32, and the negative pressure of the negative pressure cylinder 21 sucks the chips from the open port 33 into the negative pressure tube 13 from the chip removal port 38 for collection and discharge.

[0079] The present invention arranges a negative pressure cylinder 21 and a joint 22 that are interconnected in the docking seat 20, and connects and telescopically connects the negative pressure cylinder 21 with the negative pressure tube 13 of the base shaft 10. On the one hand, it can not only adapt to the outward movement of the lifting plate 11 to fit the inner wall of the steel pipe 100, but also after the steel pipe 100 is drilled by the drill needle 42, the joint 22 can accommodate the drill needle 42, so that the debris drilled by the drill needle 42 can enter the negative pressure tube 13 through the joint 22 for discharge, which is conducive to the centralized collection of debris and will not leave the debris in the steel pipe 100 channel to cause environmental pollution in subsequent transportation processes.

[0080] On the other hand, the hole drilled by the drill needle 42 will have many burrs, which are distributed on the inner wall of the tube. Therefore, after the debris enters the negative pressure tube 13, the chimera 32 of the side sliding processing seat 30 enters the negative pressure tube 21 while the negative pressure tube 21 and the hole are still relative to each other, so that the grinding head 37 of the chimera 32 can grind and remove the burrs of the hole, and then discharge the grinding debris into the negative pressure tube 21 and the negative pressure tube 13 through the chip discharge port 38 of the chimera 32. Integrating drilling and grinding, there is no need for subsequent repositioning and grinding, which greatly improves processing efficiency.

[0081] like Figure 2 As shown, the joint 22 is coaxial with the negative pressure cylinder 21 , and the upper end of the joint 22 is an arc-shaped surface adapted to the inner wall of the steel pipe 100 .

[0082] The joint 22 is made of rubber material to prevent the joint 22 from causing a rigid collision with the inner wall of the steel pipe 100 and damaging the inner wall of the steel pipe 100 when the joint 22 contacts the inner wall of the steel pipe 100 .

[0083] like Figure 3 As shown, a joint 24 is provided at the side end of the negative pressure cylinder 21 , and the joint 24 is located opposite to the side sliding opening 23 . The joint 24 is used to cooperate with the chimeric body 32 , so that after the chimeric body 32 is engaged in the joint 24 , the grinding head 37 in the chimeric body 32 is coaxial with the joint 22 .

[0084] like Figure 1 As shown, a hydraulic cylinder 40 is provided above the base shaft 10, a driving motor 41 is connected below the hydraulic cylinder 40, a drill needle 42 is connected below the power end of the driving motor 41, the hydraulic cylinder 40 is started to drive the drill needle 42 to contact the steel pipe 100, and then the driving motor 41 is started to drive the drill needle 42 to rotate for drilling holes in the steel pipe 100.

[0085] Embodiment 2:

[0086] A numerically controlled machine tool, wherein Figure 1 As shown, the inner wall treatment structure of the pipe is provided in the first embodiment.

[0087] The numerically controlled machine tool comprises a processing bed 50 , a sliding seat 51 is slidably connected to the right end of the processing bed 50 , and the base shaft 10 is connected to the sliding seat 51 .

[0088] A power motor 60 is fixedly connected to the left end of the processing bed 50 . A chuck 61 is connected to the power motor 60 . A clamping claw 62 is provided on the chuck 61 . The steel pipe 100 is clamped by the clamping claw 62 .

[0089] like Figure 1 , 6 As shown, a dust removal ring 70 is provided between the sliding seat 51 and the chuck 61. The upper end of the dust removal ring 70 is provided with a through hole 71 for the drill needle 42 to pass through. An open annular groove 72 provided on the inner wall of the dust removal ring 70 is connected to the through hole 71. The lower end of the annular groove 72 is connected to one or more dust suction pipes 73.

[0090] When the base shaft 10 passes through the channel of the steel pipe 100, the steel pipe 100 passes through the dust removal ring 70. Then, when the hydraulic cylinder 40 drives the drill bit 42 to move downward, the steel pipe 100 will contact the outer wall of the steel pipe 100 after passing through the opening 71 of the dust removal ring 70. Then, when the drill bit 42 drills the steel pipe 100, the annular groove 72 of the dust removal ring 70 blocks the debris generated by drilling from splashing. At the same time, the dust suction pipe 73 under the annular groove 72 absorbs the debris in the annular groove 72, so that the debris generated during drilling will not splash onto the peripheral equipment of the steel pipe 100, thereby effectively improving the working environment.

[0091] Embodiment three:

[0092] A CNC machine tool having the same characteristic structure and technical effects as the second embodiment, wherein: Figure 6 , 7 As shown, the opening 71 of the dust removal ring 70 is rotationally connected with a size reaction component 80 , and a bias spring is provided at the rotation connection between the size reaction component 80 and the side wall of the opening 71 .

[0093] The size reaction assembly 80 has a rotating shaft 81, which is rotatably connected to the through port 71 via a bearing. The rotating shaft 81 is connected to a transmission gear 82, a rack 83 is meshed under the transmission gear 82, and an indicator needle 84 is fixed under the rack 83.

[0094] The dust removal ring 70 has a scale plate 74 (the scale plate 74 is engraved with a size value) at its side end, and the scale plate 74 corresponds to the indicator needle 84 on the left and right.

[0095] The rotating shaft 81 is also connected to a swing arm 85 , which is tilted. Side wheels 86 are provided on the upper and lower sides of the swing arm 85 , and a center column 87 is connected to the side wheels 86 .

[0096] The front-to-rear gap between the upper and lower center columns 87 is smaller than the drill needle 42 .

[0097] When drilling a hole in a steel pipe 100 using a CNC machine tool, it is often not common for one worker to use one CNC machine tool, but for multiple workers to share one CNC machine tool. In this environment, each worker is required to confirm the size of the drill bit 42 according to the size of the hole to be drilled in the steel pipe 100. However, due to negligence, it is not uncommon to use a drill bit 42 of the wrong size. In view of this problem, the present invention solves it by setting a simple size reaction component 80, specifically: Figure 6 , 8 As shown, when the drill needle 42 enters the opening 71 of the dust removal ring 70, the front and rear ends of the drill needle 42 will squeeze the center column 87, forcing the center column 87 to drive the rotating shaft 81 to rotate, adjusting the front and rear gaps to adapt to the size of the drill needle 42, and when the rotating shaft 81 rotates, it will drive the transmission gear 82 to rotate, so that the rack 83 moves forward, and then drives the indicator needle 84 to move forward to correspond to the size value engraved on the scale plate 74. In this way, it is helpful to measure the size of the drill needle 42 before the drill needle 42 contacts the steel pipe 100, which is convenient for staff to observe and reduce the probability of misoperation. In addition, this structure is very simple and practical, which is conducive to general promotion.

[0098] Embodiment 4:

[0099] A method for processing the inner wall of a pipe is applied to the pipe inner wall processing structure in the first embodiment or the CNC machine tool in the second or third embodiment, and includes the following steps:

[0100] When it is necessary to drill a hole in the steel pipe 100, first insert the base shaft 10 into the channel of the steel pipe 100. After the position of the joint 22 in the docking seat 20 is aligned with the position where the hole is to be drilled in the steel pipe 100, start the lifting motor 12 in the base shaft 10 to push the lifting and moving outward. During this process, the negative pressure cylinder 21 in the docking seat 20 extends out of the negative pressure tube 13 in the base shaft 10, and the negative pressure cylinder 21 and the negative pressure tube 13 are kept in communication. After that, when the joint 22 of the docking seat 20 is in close contact with the inner wall of the steel pipe 100, stop the lifting motor 12.

[0101] Then, the hydraulic cylinder 40 provided on the outside of the steel pipe 100 is started to drive the drill needle 42 to move downward and contact the outer wall of the steel pipe 100, and at the same time, the driving motor 41 is started to drive the drill needle 42 to rotate and drill holes at the positions to be drilled in the steel pipe 100. After the drill needle 42 has completed drilling the steel pipe 100, the drill needle 42 will poke into the channel of the steel pipe 100. At this time, the drill needle 42 penetrates into the joint 22, so that the debris passes through the joint 22 and falls into the negative pressure cylinder 21. The negative pressure generated by the negative pressure tube 13 in the base shaft 10 absorbs the debris in the negative pressure cylinder 21, so that the debris enters the negative pressure tube 13 for collection and discharge;

[0102] After the drill needle 42 is separated from the steel pipe 100 by the hydraulic cylinder 40, the telescopic motor 31 of the processing seat 30 is started to drive the chimera 32 to slide along the side sliding port 23 of the negative pressure cylinder 21 and enter the negative pressure cylinder 21. At this time, the chip removal port 38 of the chimera 32 is connected with the negative pressure cylinder 21. Then the rotating motor 35 and the telescopic pole 36 are started to make the grinding head 37 contact with the hole on the inner wall of the steel pipe 100, and the burrs in the hole are ground and removed. The ground chips fall into the open port 33 of the chimera 32, and the negative pressure of the negative pressure cylinder 21 is used to absorb the chips from the open port 33 from the chip removal port 38 into the negative pressure tube 13 for collection and discharge.

[0103] In the above steps, while the base shaft 10 passes through the channel of the steel pipe 100, the steel pipe 100 passes through the dust removal ring 70. Then, when the hydraulic cylinder 40 drives the drill bit 42 to move downward, the steel pipe 100 will contact the outer wall of the steel pipe 100 after passing through the opening 71 of the dust removal ring 70. Then, when the drill bit 42 drills the steel pipe 100, the annular groove 72 of the dust removal ring 70 is used to block the debris generated by drilling from splashing. At the same time, the dust suction pipe 73 under the annular groove 72 is used to absorb the debris in the annular groove 72, so that the debris generated during drilling will not splash onto the peripheral equipment of the steel pipe 100.

[0104] Although the above describes the illustrative specific embodiments of the present invention so that those skilled in the art can understand the present invention, the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, all inventions and creations using the concepts of the present invention are protected.

Claims

1. A pipe inner wall treatment structure, wherein: include: A base shaft, the base shaft being provided with: A lifting plate, the lifting plate being radially disposed on an outer surface of the base shaft; A lifting motor, the lifting motor is installed in the base shaft, and the lifting end of the lifting motor is connected to the lifting plate; A negative pressure tube, the negative pressure tube is arranged in the base shaft; A docking seat, the docking seat is embedded in the lifting plate, and the docking seat has: A negative pressure cylinder, the negative pressure cylinder is telescopically connected to the negative pressure tube, and the negative pressure cylinder is connected to the negative pressure tube; A connector, which is mounted on the negative pressure cylinder; A processing seat, the processing seat is installed in the lifting plate, and the processing seat has: Telescopic motor; A chimera, the chimera is slidably engaged with a side sliding opening provided at a side end of the negative pressure cylinder, and the chimera is provided with an open opening; A base, the base being arranged under the opening of the chimera; A rotating motor installed in the base; A telescopic pole, wherein the telescopic pole is connected to the power end of the rotating motor; A grinding head, the grinding head is connected to the telescopic pole, and the grinding head is located in the opening; A chip discharge port, one end of which is communicated with the open port, and when the telescopic motor pushes the chimeric body into the negative pressure cylinder, the other end of the chip discharge port is communicated with the negative pressure cylinder; The joint is coaxial with the negative pressure cylinder, and the upper end of the joint is an arc-shaped surface adapted to the inner wall of the steel pipe; A hydraulic cylinder is provided above the base shaft, a driving motor is connected below the hydraulic cylinder, a drill is connected below the power end of the driving motor, the hydraulic cylinder is started to drive the drill to contact the steel pipe, and the driving motor is started to drive the drill to rotate for drilling holes in the steel pipe.

2. The pipe inner wall treatment structure according to claim 1, wherein: The negative pressure tube is communicated with an external suction pump.

3. The pipe inner wall treatment structure according to claim 1, wherein: The joint is made of rubber material to avoid rigid collision and damage to the inner wall of the steel pipe when the joint contacts the inner wall of the steel pipe.

4. The pipe inner wall treatment structure according to claim 1, wherein: A joint is provided at the side end of the negative pressure cylinder, and the joint is located opposite to the side sliding opening. The joint is used to cooperate with the chimeric body, so that after the chimeric body is chimerically engaged in the joint, the grinding head in the chimeric body is coaxial with the joint.

5. A numerically controlled machine tool, wherein: The invention has a pipe inner wall treatment structure as described in any one of claims 1 to 4.

6. The numerically controlled machine tool according to claim 5, wherein: The numerically controlled machine tool comprises a processing bed, a sliding seat is slidably connected to the right end of the processing bed, and the base shaft is connected to the sliding seat.

7. The numerically controlled machine tool according to claim 6, wherein: A power motor is fixedly connected to the left end of the processing bed, a chuck is connected to the power motor side, and a clamping claw is provided on the chuck to clamp the steel pipe.

8. The numerically controlled machine tool according to claim 7, wherein: A dust removal ring is provided between the sliding seat and the chuck, the upper end of the dust removal ring is provided with a through hole for the drill needle to pass through, an open annular groove provided on the inner wall of the dust removal ring is connected to the through hole, and the lower end of the annular groove is connected to one or more dust suction pipes.

9. A method for treating the inner wall of a pipe, wherein: The method for treating the inner wall of a pipe is based on the inner wall treatment structure of the pipe described in any one of claims 1 to 4 above, and the method for treating the inner wall of a pipe comprises the following steps: When it is necessary to drill a hole in the steel pipe, first insert the base shaft into the channel of the steel pipe. After the joint position in the docking seat is aligned with the position where the hole is to be drilled in the steel pipe, start the lifting motor in the base shaft to push the lifting and moving outward. During this process, the negative pressure cylinder in the docking seat extends out of the negative pressure tube in the base shaft, and the negative pressure cylinder and the negative pressure tube remain connected. After that, when the joint of the docking seat is in close contact with the inner wall of the steel pipe, stop the lifting motor; Then, the hydraulic cylinder provided on the outside of the steel pipe is started to drive the drill bit to move down and contact the outer wall of the steel pipe, and at the same time, the driving motor is started to drive the drill bit to rotate to drill holes in the steel pipe. After the drill bit has completed drilling the steel pipe, the drill bit will poke into the channel of the steel pipe. At this time, the drill bit penetrates into the joint, so that the debris falls into the negative pressure cylinder through the joint. The debris in the negative pressure cylinder is sucked by the negative pressure generated by the negative pressure tube in the base shaft, so that the debris enters the negative pressure tube for collection and discharge; After the drill bit is separated from the steel pipe by the hydraulic cylinder, the telescopic motor of the processing seat is started to drive the chimera to slide along the side sliding port of the negative pressure cylinder and enter the negative pressure cylinder. At this time, the chip discharge port of the chimera is connected with the negative pressure cylinder. Then the rotating motor and the telescopic pole are started to make the grinding head contact with the hole on the inner wall of the steel pipe, and the burrs in the hole are ground and removed. The ground chips fall into the open mouth of the chimera, and the negative pressure of the negative pressure cylinder sucks the open chips from the chip discharge port into the negative pressure tube for collection and discharge.

10. The method for treating the inner wall of a pipe according to claim 9, wherein: In the above steps, while the base shaft passes through the steel pipe channel, the steel pipe passes through the dust removal ring. Later, when the hydraulic cylinder drives the drill bit to move downward, the steel pipe will contact the outer wall of the steel pipe after passing through the opening of the dust removal ring. Then, when the drill bit drills the steel pipe, the ring groove of the dust removal ring is used to block the splashing of debris generated by drilling. At the same time, the dust suction pipe under the ring groove is used to absorb the debris in the ring groove, so that the debris generated during drilling will not splash onto the peripheral equipment of the steel pipe.

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