Portable steel pipe laser tapping machine

Abstract

The invention relates to the technical field of laser tapping, in particular to a portable steel pipe laser tapping machine. Comprising a laser cutting head, a driving motor, a mounting cylinder, a connecting plate, a compression spring, a fixing assembly and the like, the laser cutting head is slidably connected with the mounting cylinder, the connecting plate is connected to the outer wall of the laser cutting head, the compression spring is connected with the mounting cylinder and the connecting plate, and the fixing assembly is used for fixing the position of the driving motor. And then the driving motor drives the mounting cylinder to rotate, and the laser cutting head can be driven to rotate with the output shaft of the driving motor as the center point so as to accurately draw a circle and open a hole in the surface of the steel pipe body. The position of the driving motor can be fixed through the switch magnetic base, then through the action of the driving motor, the laser cutting head can be driven to rotate with the output shaft of the driving motor as the center point to conduct precise circle drawing and trepanning on the surface of the steel pipe, in this way, the situation of trepanning deformation can be prevented, and the trepanning effect is guaranteed.

Description

Technical Field

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

[0002] Laser drilling of steel pipes is a method of drilling holes in steel pipes using laser technology. It can achieve an efficient, precise and flexible drilling process without damaging the structure and performance of the steel pipe. Laser drilling of steel pipes has broad application prospects in industrial production and scientific research.

[0003] Existing laser hole-opening machines are mainly divided into two types: handheld and desktop. When it is necessary to perform laser hole-opening on large steel pipes, it is difficult to carry large steel pipes to a desktop laser hole-opening machine for hole-opening due to their large size and heavy weight, and it is inconvenient to adjust the cutting position of large steel pipes, so handheld laser hole-opening machines are usually used for laser hole-opening on large steel pipes. However, the existing handheld laser hole-opening machines have a relatively simple structure, and workers usually rely on their own experience to move the handheld laser hole-opening machine to open holes in large steel pipes. However, the accuracy of manual operation is low, which makes it difficult for workers to make accurate holes on large steel pipes, and the holes will be deformed, affecting the hole-opening effect; and when the handheld laser hole-opening machine is moved manually, since the surface of the steel pipe is an arc surface, it is difficult for the manual operator to control the distance between the laser hole-opening machine and the surface of the steel pipe to remain consistent, and the distance between the focus of laser cutting and the surface of the steel pipe will change, which will affect the hole-opening effect of the steel pipe. Summary of the invention

[0004] In view of this, the present invention provides a portable steel pipe laser hole opening machine, which can overcome the shortcomings of existing handheld laser hole opening machines, that is, it is difficult to manually make accurate holes in large steel pipes when performing laser hole opening on large steel pipes, and it is difficult to control the distance between the laser hole opening machine and the surface of the steel pipe to remain consistent, which affects the steel pipe hole opening effect.

[0005] The technical implementation scheme of the present invention is: A portable steel pipe laser hole opening machine includes a laser hole opening machine body, the laser hole opening machine body includes a main machine and a laser cutting head, and also includes a driving motor, a mounting cylinder, a connecting plate, a compression spring, a push rod, an adjustment component and a fixing component, the laser cutting head is slidably connected to the mounting cylinder, the connecting plate is connected to the outer wall of the laser cutting head, the compression spring connects the mounting cylinder and the connecting plate, and the push rod is connected to the bottom surface of the connecting plate, the fixing component is used to fix the position of the driving motor, and then the mounting cylinder is driven to rotate by the driving motor, which can drive the laser cutting head to rotate with the output shaft of the driving motor as the center point to accurately draw a circle and open a hole on the surface of the steel pipe body, and the laser cutting head drives the push rod to rotate synchronously, the compression spring can make the lower end of the push rod always close to the surface of the steel pipe body to stabilize the distance between the laser cutting head and the surface of the steel pipe body, and the adjustment component is used to adjust the aperture size of the hole opened by the laser cutting head on the steel pipe body.

[0006] More preferably, the adjustment assembly includes a fixed block and an electric push rod I, the fixed block is connected to the output shaft of the drive motor, the electric push rod I is connected to the fixed block, the mounting tube is connected to the telescopic rod of the electric push rod I, and the mounting tube and the laser cutting head are driven to move by the electric push rod I, so that the distance between the laser cutting head and the output shaft of the drive motor can be adjusted.

[0007] More preferably, the fixing assembly includes a switch magnetic seat, a support rod, a guide frame, a sliding plate, a mounting rod and a fastening bolt, the support rod is connected to the top surface of the switch magnetic seat, the guide frame is fixedly connected to the upper end of the support rod, the sliding plate is slidably connected to the guide frame, the drive motor is connected to the bottom surface of the sliding plate through the mounting rod, and the guide frame is threaded with the fastening bolt for fixing the sliding plate.

[0008] More preferably, a protective mechanism is also included, which includes a mounting plate, an airbag, an air pump, a connecting pipe, a water injection assembly and a moving assembly, wherein the airbag is installed on the mounting plate, and the airbag and the mounting plate are interconnected, and the moving assembly is used to drive the two mounting plates to move inside the steel pipe body, so that the two mounting plates are respectively moved to the two sides of the opening position of the steel pipe body, and then the air pump inflates the airbag through the connecting pipe, so that the outer surface of the airbag can fit the inner wall of the steel pipe body to form an enclosed space below the opening position of the steel pipe body, and the water injection assembly can inject water into the enclosed space to cool and solidify the slag splashed downward from the opening position of the steel pipe body.

[0009] More preferably, the water injection assembly includes a water inlet pipe, a float valve and an air outlet pipe, the water inlet pipe and the air outlet pipe are respectively installed on the two mounting plates, and the float valve is installed at the end of the water inlet pipe to control the amount of water in the enclosed space.

[0010] More preferably, the moving assembly includes a mounting frame, a connecting shell, an electric push rod II, a connecting block, a rolling ball, a connecting rod and an electric wheel, the air pump is connected to the side of the mounting frame through the connecting shell, a plurality of groups of the electric push rods II are connected to the mounting frame at evenly spaced circumferential intervals, the rolling ball is connected to the telescopic rod of the electric push rod II through the connecting block, the electric push rod II is used to drive the rolling ball to move to contact the inner wall of the steel pipe body to stabilize the position of the mounting frame, the connecting rod is connected to the connecting block, the electric wheel is installed in the middle of the connecting rod, the electric wheel can move synchronously with the rolling ball to contact the inner wall of the steel pipe body, and then the rotation of the electric wheel can drive the mounting frame to move inside the steel pipe body.

[0011] More preferably, it also includes a baffle rod, a bar magnet, a digital tape measure and a control component, the bar magnet is symmetrically connected to the side of the baffle rod, so that the baffle rod can be fixed to the end face of the steel pipe body through the bar magnet, and the digital tape measure is installed on the baffle rod. When the mounting frame moves inside the steel pipe body, the tape measure end of the digital tape measure can be pulled out, and when the tape measure end of the digital tape measure is pulled out to a specified length, the control component can control the electric wheel to stop working.

[0012] More preferably, the control assembly includes a circular plate, a guide rod, a sliding rod, a tension spring and a control switch, the circular plate is rotatably connected to the side of the mounting frame, the guide rod is fixedly connected to the side of the circular plate, the sliding rod is slidably connected to the guide rod, and the tape measure end of the digital tape measure is fixedly connected to the side of the sliding rod, the tension spring connects the circular plate and the sliding rod, and the control switch is installed on the guide rod so that the sliding rod can contact and cooperate with the control switch when sliding along the guide rod.

[0013] More preferably, it also includes a lifting component and a circular magnet, wherein the lifting component is used to drive the circular magnet to lift and lower, so that the circular magnet can descend to absorb the waste material that needs to be cut from the steel pipe body, and then the circular magnet can rise to drive the waste material to rise and away from the steel pipe body.

[0014] More preferably, it also includes a mounting seat, a rotating sleeve, an electric push rod III, a contact ball and a locking assembly, wherein the mounting seat is connected to the top surface of the switch magnetic seat, the rotating sleeve is symmetrically rotatably connected to both sides of the mounting seat, the electric push rod III is fixedly connected to the rotating sleeve, the contact ball is connected to the telescopic rod of the electric push rod III, and the locking assembly is used to lock the rotating sleeve to fix the position of the electric push rod III, and then the electric push rod III drives the contact ball to move downward until it contacts the ground, which can stabilize the steel pipe body.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention can fix the position of the driving motor by switching the magnetic seat, and then through the action of the driving motor, it can drive the laser cutting head to rotate with the output shaft of the driving motor as the center point to accurately draw a circle and open a hole on the surface of the steel pipe, thereby preventing the hole from being deformed and ensuring the hole opening effect.

[0016] 2. The present invention can make the lower end of the push rod always close to the surface of the steel pipe through the cooperation of the compression spring and the push rod, thereby ensuring that the distance between the lower end of the laser cutting head and the surface of the steel pipe is always consistent, thereby ensuring the hole opening effect of the laser cutting head on the steel pipe.

[0017] 3. The present invention controls the expansion of two airbags so that the surface of the airbags fits the inner wall of the steel pipe, thereby forming a closed space directly below the position where a hole is required in the steel pipe. By injecting water into the closed space, the slag splashed when the hole is opened in the steel pipe can be quickly cooled, so that the slag can be quickly solidified, preventing the slag from adhering to the inner wall of the steel pipe, and facilitating subsequent cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the installation of the adjusting component and the fixing component of the present invention.

[0020] Figure 3 The figure is a schematic diagram of the installation of the mounting plate, the air bag, the air pump and the connecting pipe of the present invention.

[0021] Figure 4 It is a cross-sectional view of the mounting plate and the connecting pipe of the present invention.

[0022] Figure 5 It is a schematic diagram of the installation of the protection mechanism of the present invention.

[0023] Figure 6 For the present invention Figure 5 A magnified view of part A.

[0024] Figure 7 It is a schematic diagram of the installation of the circular magnet of the present invention.

[0025] Figure 8 The figure is a schematic diagram of the installation of the mounting seat, the rotating sleeve, the electric push rod III and the contact ball of the present invention.

[0026] The markings of the components in the attached drawings are as follows: 0, steel pipe body, 1, main machine, 2, laser cutting head, 3, driving motor, 4, mounting tube, 5, connecting plate, 6, compression spring, 7, push rod, 8, fixing block, 81, electric push rod I, 9, switch magnetic seat, 10, support rod, 11, guide frame, 12, sliding plate, 13, mounting rod, 14, fastening bolt, 15, mounting plate, 16, air bag, 17, air pump, 18, connecting pipe, 19, water inlet pipe, 2 0. Float valve, 21. Exhaust pipe, 22. Mounting bracket, 23. Connecting shell, 24. Electric push rod II, 25. Connecting block, 26. Roller ball, 27. Connecting rod, 28. Electric wheel, 29. Stop rod, 30. Bar magnet, 31. Digital tape measure, 32. Round plate, 33. Guide rod, 34. Sliding rod, 35. Tension spring, 36. Control switch, 37. Round magnet, 38. Mounting seat, 39. Rotating sleeve, 40. Electric push rod III, 41. Contact ball. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0028] Embodiment: A portable steel tube laser drilling machine, such as Figure 1 and Figure 2As shown, it includes a laser hole opening machine body, which includes a main machine 1 and a laser cutting head 2. The top surface of the main machine 1 is fixedly connected to a handle, which is convenient for manual carrying of the main machine 1, and the lower part of the main machine 1 is symmetrically connected to four rollers, and the rollers can roll on the ground, which is convenient for the main machine 1 to move on the ground. The laser cutting head 2 is controlled by the main machine 1 to irradiate the laser beam on the surface of the steel pipe body 0, and then the laser cutting head 2 is controlled to move according to a certain trajectory, so that the steel pipe body 0 can be laser cut and holes can be opened; it also includes a driving motor 3, a mounting cylinder 4, a connecting plate 5, a compression spring 6, a push rod 7, an adjustment component and a fixing component. The mounting cylinder 4 is composed of a block and a cylinder, and the bottom surface of the block is fixedly connected to the cylinder. The laser cutting head 2 is slidably connected to the cylinder of the mounting cylinder 4 and can slide up and down. The connecting plate 5 is connected to the lower part of the outer wall of the laser cutting head 2, one end of the compression spring 6 is fixedly connected to the top surface of the connecting plate 5, and the other end of the compression spring 6 is fixedly connected to the bottom surface of the cylinder of the mounting cylinder 4. The rod 7 is connected to the bottom surface of the connecting plate 5. The height of the lower end of the push rod 7 is lower than the height of the lower end of the laser cutting head 2, so that when the lower end of the push rod 7 contacts the surface of the steel pipe body 0, a fixed length of spacing can be left between the lower end of the laser cutting head 2 and the surface of the steel pipe body 0 to ensure the cutting effect of the laser cutting head 2 on the steel pipe body 0. The fixing component is used to fix the position of the driving motor 3, and then the driving motor 3 drives the mounting cylinder 4 to rotate, which can drive the laser cutting head 2 to rotate with the output shaft of the driving motor 3 as the center point to accurately draw a circle and open a hole on the surface of the steel pipe body 0, and the laser cutting head 2 drives the push rod 7 to rotate synchronously. The compression spring 6 can make the lower end of the push rod 7 always close to the surface of the steel pipe body 0 to stabilize the distance between the laser cutting head 2 and the surface of the steel pipe body 0. The adjusting component is used to adjust the aperture size of the hole opened by the laser cutting head 2 on the steel pipe body 0, so that large steel pipes can be laser opened more conveniently and the opening accuracy can be guaranteed, that is, a good opening effect can be guaranteed.

[0029] like Figure 2 As shown, the adjustment component includes a fixed block 8 and an electric push rod Ⅰ81, the fixed block 8 is connected to the output shaft of the drive motor 3, the electric push rod Ⅰ81 is connected to the fixed block 8, the block of the mounting tube 4 is connected to the telescopic rod of the electric push rod Ⅰ81, and the mounting tube 4 and the laser cutting head 2 are driven to move by the electric push rod Ⅰ81, so that the distance between the laser cutting head 2 and the output shaft of the drive motor 3 can be adjusted, so as to control the rotation radius of the laser cutting head 2, so as to control the aperture size of the hole opened by the laser cutting head 2 on the steel pipe body 0.

[0030] like Figure 1 and Figure 2As shown, the fixing assembly includes a switch magnetic seat 9, a support rod 10, a guide frame 11, a sliding plate 12, a mounting rod 13 and a fastening bolt 14. The support rod 10 is connected to the top surface of the switch magnetic seat 9, the guide frame 11 is fixedly connected to the upper end of the support rod 10, a sliding groove is opened in the guide frame 11 for the sliding plate 12 to slide left and right, the mounting rod 13 is fixedly connected to the left side of the bottom surface of the sliding plate 12, the driving motor 3 is fixedly connected to the lower end of the mounting rod 13, so that the driving motor 3 can move left and right synchronously with the sliding plate 12 through the mounting rod 13, thereby driving the laser cutting head 2 to move left and right to adjust the opening position, and the guide frame 11 is threadedly connected with a fastening bolt 14, by rotating the fastening bolt 14 forward and backward, the fastening bolt 14 can be controlled to move up and down, and when the fastening bolt 14 moves downward until its lower end is close to the top surface of the sliding plate 12, the sliding plate 12 can be fixed.

[0031] First, the laser drilling machine body can be manually carried to the designated position, and then the main machine 1 is placed on the side of the steel pipe body 0, and then the switch magnetic seat 9 is placed on the steel pipe body 0, so that the laser cutting head 2 is close to the drilling position of the steel pipe body 0. At this time, the lower end of the push rod 7 will contact the surface of the steel pipe body 0, and the push rod 7 will be squeezed to move upward relative to the installation tube 4, driving the connecting plate 5 and the laser cutting head 2 to move upward relative to the installation tube 4, and the compression spring 6 is compressed, so that a certain distance can be left between the lower end of the laser cutting head 2 and the surface of the steel pipe body 0, and then the control The control switch magnetic seat 9 is adsorbed on the steel pipe body 0, and then the electric push rod Ⅰ81 drives the installation cylinder 4 to move horizontally, which can drive the laser cutting head 2 to move horizontally, adjust the distance between the laser cutting head 2 and the output shaft of the drive motor 3, so as to control the rotation radius of the laser cutting head 2, and then move the sliding plate 12 left and right, which can drive the installation rod 13 and the drive motor 3 to move left and right, thereby driving the fixed block 8, the electric push rod Ⅰ81, the installation cylinder 4 and the laser cutting head 2 to move left and right, so that the laser cutting head 2 is aligned with the steel pipe body 0 that needs to be opened. The position of the hole is set, and then the fastening bolt 14 is rotated, which can make the fastening bolt 14 move downward to fix the sliding plate 12, thereby fixing the position of the driving motor 3, and then the laser cutting head 2 is controlled by the host 1 to irradiate the laser beam on the surface of the steel pipe body 0, and at the same time, the fixing block 8 and the electric push rod Ⅰ81 are driven to rotate by the driving motor 3. The electric push rod Ⅰ81 can drive the mounting cylinder 4 and the laser cutting head 2 to rotate, so that the laser cutting head 2 can accurately draw a circle and open a hole in the steel pipe body 0, and the laser cutting head 2 can pass through the rotating process. The connecting plate 5 drives the push rod 7 to rotate synchronously. Under the elastic force of the compression spring 6, the push rod 7 can always be given a thrust to move downward. Even if the surface of the steel pipe body 0 is arc-shaped, the lower end of the push rod 7 can always be close to the surface of the steel pipe body 0, thereby ensuring that the distance between the lower end of the laser cutting head 2 and the surface of the steel pipe body 0 is always consistent, thereby ensuring the hole opening effect of the laser cutting head 2 on the steel pipe body 0. After the hole opening is completed, the switch magnetic seat 9 can be controlled to release the steel pipe body 0, and then the switch magnetic seat 9 can be taken out for portable use.

[0032] like Figure 3-Figure 5As shown, it also includes a protection mechanism, which includes a mounting plate 15, an airbag 16, an air pump 17, a connecting pipe 18, a water injection assembly and a moving assembly. The mounting plate 15 is composed of a round tube and two round plates, and the two round plates are respectively connected to the left and right ends of the round tube. The diameter of the round tube is smaller than the diameter of the round plate, and a plurality of through holes are spaced apart on the round tube. The airbag 16 is mounted on the round tube of the mounting plate 15, and the airbag 16 and the round tube of the mounting plate 15 are mutually connected so that the outside air can enter the airbag 16 through the through holes on the round tube. One end of the connecting pipe 18 is connected to the air pump 17, and the other end of the connecting pipe 18 is connected to the end of the round tube of the mounting plate 15. The moving assembly The water injection assembly is used to drive the two mounting plates 15 to move inside the steel pipe body 0, so that the two mounting plates 15 are respectively moved to the two sides of the opening position of the steel pipe body 0, and then the air pump 17 inflates the airbag 16 through the connecting pipe 18, so that the outer surface of the airbag 16 can fit the inner wall of the steel pipe body 0, so as to form a closed space below the opening position of the steel pipe body 0, and the water injection assembly can inject water into the closed space to cool and solidify the slag splashing downward from the opening position of the steel pipe body 0, so as to prevent the splashing slag from adhering to the inner wall of the steel pipe body 0; the water injection assembly includes a water inlet pipe 19, a float valve 20 and an air outlet pipe 21, and the water inlet pipe 19 and the air outlet pipe 2 1 are respectively installed in the middle of the two mounting plates 15, and the ends of the water inlet pipe 19 and the air outlet pipe 21 close to each other both penetrate the disc and the round tube of the mounting plate 15, and the float valve 20 is installed at the left end of the water inlet pipe 19 to control the water volume in the closed space; the moving assembly includes a mounting frame 22, a connecting shell 23, an electric push rod II 24, a connecting block 25, a rolling ball 26, a connecting rod 27 and an electric wheel 28, the two mounting frames 22 are connected to the connecting shell 23, the air pump 17 is connected to the inside of the connecting shell 23, and the mounting frames 22 on the left and right sides are connected to four groups of electric push rods II 24 at even intervals in the circumferential direction, and the number of each group of electric push rods II 24 is two, and the number of electric push rods II 24 is two. The telescopic rods are all connected with connecting blocks 25, and the sides of the connecting blocks 25 away from the electric push rod II 24 are rotatably connected with balls 26. The electric push rod II 24 is used to drive the balls 26 to move so that the four groups of balls 26 can contact the inner wall of the steel pipe body 0 to stabilize the position of the mounting frame 22. Among the four groups of connecting blocks 25, the two opposite groups of connecting blocks 25 are connected with connecting rods 27, and the electric wheel 28 is installed in the middle of the connecting rod 27. The electric wheel 28 can move synchronously with the balls 26 until it contacts the inner wall of the steel pipe body 0, and then the electric wheel 28 can rotate to move along the inner wall of the steel pipe body 0 to drive the mounting frame 22 to move inside the steel pipe body 0.

[0033] When it is necessary to perform laser drilling on the steel pipe body 0, firstly connect the water inlet pipe 19 to an external water pump, and then put the two mounting frames 22 into the left and right ends of the steel pipe body 0 respectively, and then drive the connecting block 25 to move to the side away from the mounting frame 22 through the electric push rod II 24, which can drive the rolling ball 26, the connecting rod 27 and the electric wheel 28 to move to the side away from the mounting frame 22, so that the rolling ball 26 and the electric wheel 28 can contact the inner wall of the steel pipe body 0, thereby stabilizing the position of the mounting frame 22, and then control the electric wheel 28 to rotate, so that the electric wheel 28 can roll along the inner wall of the steel pipe body 0, thereby driving the mounting frames 22 on the left and right sides to move inside the steel pipe body 0, and the mounting frame 22 can drive the two mounting plates 15 to move to the left and right sides of the position where the hole needs to be drilled in the steel pipe body 0 respectively, and then control the air pump 17 to pass through the connecting pipe 18. The airbag 16 is inflated to expand and fit the inner wall of the steel pipe body 0 for sealing. At this time, a closed space can be formed between the two airbags 16 and the steel pipe body 0, and the closed space is located directly below the position where the hole in the steel pipe body 0 needs to be opened. Then, water can be injected into the closed space through the water pump and the water inlet pipe 19, and the air in the closed space can be discharged outward through the air outlet pipe 21. When a certain amount of water is contained in the closed space, the float valve 20 can be automatically closed, so that the water inlet pipe 19 no longer injects water into the closed space. When the laser cutting head 2 is laser opening the steel pipe body 0, slag will splash down along the cutting seam of the steel pipe body 0 into the closed space. The water in the closed space can quickly cool the splashed slag, so that the slag can be quickly solidified to prevent the slag from adhering to the inner wall of the steel pipe body 0, which is convenient for subsequent cleaning work.

[0034] like Figure 5 and Figure 6 As shown, it also includes a blocking rod 29, a bar magnet 30, a digital tape measure 31 and a control component. The bar magnet 30 is symmetrically connected to the side of the blocking rod 29, so that the blocking rod 29 can be fixed to the end face of the steel pipe body 0 through the bar magnet 30. The digital tape measure 31 is installed on the blocking rod 29. When the mounting frame 22 moves inside the steel pipe body 0, the tape measure end of the digital tape measure 31 can be pulled out. When the tape measure end of the digital tape measure 31 is pulled out to a specified length, the control component can control the electric wheel 28 to stop working; the control component includes a circular plate 32, a guide rod 33, a slide rod 34, a tension spring 35 and a control switch 36. The circular plate 32 is rotatably connected to the side of the mounting frame 22, the guide rod 33 is L-shaped, one end of the guide rod 33 is fixedly connected to the side of the circular plate 32, the slide rod 34 is slidably connected to the guide rod 33 and can slide left and right, and the tape measure end of the digital tape measure 31 is fixedly connected to the side of the slide rod 34, the tension spring 35 connects the circular plate 32 and the slide rod 34, and the control switch 36 is installed at the other end of the guide rod 33. The control switch 36 is electrically connected to the electric wheel 28, and the control switch 36 is aligned with the side of the guide rod 33, so that the slide rod 34 can contact and cooperate with the control switch 36 when sliding along the guide rod 33.

[0035] When the two mounting brackets 22 are manually placed from the left and right ends of the steel pipe body 0, the distance that the mounting brackets 22 need to move can be roughly known according to the position of the hole that needs to be opened in the steel pipe body 0, and then the digital tape measures 31 on the left and right sides are pulled out to a specified length and locked in advance, and then the mounting brackets 22 on the left and right sides are controlled to move inside the steel pipe body 0, which can drive the tape measure pull-out ends of the digital tape measures 31 on the left and right sides to move toward each other. When the mounting brackets 22 on the left and right sides are moved to the specified position, the mounting brackets 22 on the left and right sides continue to move toward each other. When the control switch 36 moves, the circular plate 32, the guide rod 33 and the control switch 36 will move toward each other, and the slide bar 34 is pulled by the pull-out end of the digital tape measure 31 and cannot move further, so the tension spring 35 will stretch. When the control switch 36 contacts the slide bar 34, the control switch 36 can control the electric wheel 28 to stop working in time, thereby controlling the mounting frame 22 to stop moving, preventing the mounting frame 22 from moving below the position where the steel pipe body 0 needs to be opened, so that the two airbags 16 can be controlled to move accurately to the left and right sides of the position where the steel pipe body 0 needs to be opened.

[0036] like Figure 7 As shown, it also includes a lifting component and a circular magnet 37. The lifting component is composed of a mounting sleeve and a linear driver. The mounting sleeve is fixedly connected to the bottom surface of the fixed block 8, the linear driver is fixedly connected to the mounting sleeve, and the circular magnet 37 is connected to the end of the driving rod of the linear driver. The linear driver is used to drive the circular magnet 37 to lift and lower. When the circular magnet 37 descends, the circular magnet 37 can absorb the waste that needs to be cut by the steel pipe body 0. When the circular magnet 37 rises, the circular magnet 37 can drive the waste to rise away from the steel pipe body 0 to prevent the waste from falling into the steel pipe body 0, which is convenient for manual processing of the waste and improves work efficiency.

[0037] like Figure 8As shown, it also includes a mounting seat 38, a rotating sleeve 39, an electric push rod III40 and a locking assembly. The mounting seat 38 is connected to the middle of the top surface of the switch magnetic seat 9, and the rotating sleeve 39 is symmetrically rotatably connected to the front and rear sides of the top of the mounting seat 38. The electric push rod III40 is fixedly connected to the rotating sleeve 39, and the contact ball 41 is connected to the telescopic rod of the electric push rod III40. The locking assembly consists of a guide sleeve, a locking rod and a push plate. The guide sleeve is symmetrically connected to the front and rear right sides of the top of the mounting seat 38. The locking rod is slidably connected to the guide sleeve. The left end of the locking rod is circumferentially spaced with tooth grooves, and the right end of the rotating shaft of the rotating sleeve 39 is opened with a circular hole with a diameter matching the locking rod, and convex strips matching the tooth grooves are circumferentially spaced in the circular hole. , the right end of the locking rod is fixedly connected with a push plate. When the switch magnetic seat 9 is adsorbed on the surface of the steel pipe body 0, the electric push rod III40 can be rotated to different angles according to the different diameters of the steel pipe body 0, and under the action of gravity, the electric push rod III40 can stick to the surface of the steel pipe body 0, and the rotating sleeve 39 can rotate synchronously with the electric push rod III40. Then, pushing the push plate to the left can drive the locking rod to move to the left and insert into the circular hole of the rotating sleeve 39. Through the clamping of the convex strip and the tooth groove, the rotating sleeve 39 can be locked to fix the position of the electric push rod III40. Then, the electric push rod III40 drives the contact ball 41 to move downward until it contacts the ground, which can stabilize the steel pipe body 0 and ensure the opening accuracy of the steel pipe body 0.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable steel pipe laser drilling machine, comprising a laser drilling machine body, wherein the laser drilling machine body comprises a main machine (1) and a laser cutting head (2), wherein: The laser cutting machine (2) further comprises a driving motor (3), a mounting tube (4), a connecting plate (5), a compression spring (6), a push rod (7), an adjusting assembly and a fixing assembly. The laser cutting head (2) is slidably connected to the mounting tube (4), the connecting plate (5) is connected to the outer wall of the laser cutting head (2), the compression spring (6) connects the mounting tube (4) and the connecting plate (5), and the push rod (7) is connected to the bottom surface of the connecting plate (5). The fixing assembly is used to fix the position of the driving motor (3), and then the mounting tube (2) is driven by the driving motor (3). 4) to rotate, which can drive the laser cutting head (2) to rotate with the output shaft of the driving motor (3) as the center point to accurately draw a circular hole on the surface of the steel pipe body (0), and the laser cutting head (2) drives the push rod (7) to rotate synchronously, and the compression spring (6) can make the lower end of the push rod (7) always close to the surface of the steel pipe body (0) to stabilize the distance between the laser cutting head (2) and the surface of the steel pipe body (0), and the adjustment component is used to adjust the aperture size of the hole opened by the laser cutting head (2) in the steel pipe body (0).

2. A portable steel tube laser drilling machine according to claim 1, characterized in that: The adjustment assembly comprises a fixed block (8) and an electric push rod I (81), wherein the fixed block (8) is connected to the output shaft of the drive motor (3), the electric push rod I (81) is connected to the fixed block (8), and the mounting tube (4) is connected to the telescopic rod of the electric push rod I (81). The mounting tube (4) and the laser cutting head (2) are driven to move by the electric push rod I (81), so that the distance between the laser cutting head (2) and the output shaft of the drive motor (3) can be adjusted.

3. A portable steel tube laser drilling machine according to claim 1, characterized in that: The fixing assembly comprises a switch magnetic seat (9), a support rod (10), a guide frame (11), a sliding plate (12), a mounting rod (13) and a fastening bolt (14); the support rod (10) is connected to the top surface of the switch magnetic seat (9); the guide frame (11) is fixedly connected to the upper end of the support rod (10); the sliding plate (12) is slidably connected to the guide frame (11); the drive motor (3) is connected to the bottom surface of the sliding plate (12) via the mounting rod (13); and the fastening bolt (14) for fixing the sliding plate (12) is threadedly connected to the guide frame (11).

4. A portable steel tube laser drilling machine according to claim 1, characterized in that: The invention also comprises a protection mechanism, the protection mechanism comprising a mounting plate (15), an airbag (16), an air pump (17), a connecting pipe (18), a water injection assembly and a moving assembly, the airbag (16) being mounted on the mounting plate (15), and the airbag (16) and the mounting plate (15) being in communication with each other, the moving assembly being used to drive the two mounting plates (15) to move inside the steel pipe body (0), so that the two mounting plates (15) are respectively moved to the two sides of the opening position of the steel pipe body (0), and then the air pump (17) inflates the airbag (16) through the connecting pipe (18), so that the outer surface of the airbag (16) is in contact with the inner wall of the steel pipe body (0), so as to form a closed space below the opening position of the steel pipe body (0), and the water injection assembly is capable of injecting water into the closed space to cool and solidify the slag splashing downward from the opening position of the steel pipe body (0).

5. A portable steel tube laser drilling machine according to claim 4, characterized in that: The water injection assembly comprises a water inlet pipe (19), a float valve (20) and an air outlet pipe (21); the water inlet pipe (19) and the air outlet pipe (21) are respectively mounted on the two mounting plates (15); the float valve (20) is mounted on the end of the water inlet pipe (19) to control the amount of water in the enclosed space.

6. A portable steel tube laser drilling machine according to claim 4, characterized in that: The moving assembly comprises a mounting frame (22), a connecting shell (23), an electric push rod II (24), a connecting block (25), a rolling ball (26), a connecting rod (27) and an electric wheel (28); the air pump (17) is connected to the side of the mounting frame (22) via the connecting shell (23); a plurality of groups of the electric push rods II (24) are connected to the mounting frame (22) at evenly spaced intervals in the circumferential direction; the rolling ball (26) is connected to the telescopic rod of the electric push rod II (24) via the connecting block (25); the electric push rod II (24) is used to drive the rolling ball (26) to move to contact the inner wall of the steel pipe body (0) to stabilize the position of the mounting frame (22), the connecting rod (27) is connected to the connecting block (25), and the electric wheel (28) is installed in the middle of the connecting rod (27). The electric wheel (28) can move synchronously with the rolling ball (26) to contact the inner wall of the steel pipe body (0), and then the electric wheel (28) can rotate to drive the mounting frame (22) to move inside the steel pipe body (0).

7. A portable steel tube laser drilling machine according to claim 6, characterized in that: The invention also comprises a blocking rod (29), a bar magnet (30), a digital tape measure (31) and a control component. The bar magnet (30) is symmetrically connected to the side of the blocking rod (29), so that the blocking rod (29) can be fixed to the end face of the steel pipe body (0) through the bar magnet (30). The digital tape measure (31) is mounted on the blocking rod (29). When the mounting frame (22) moves inside the steel pipe body (0), the tape measure end of the digital tape measure (31) can be pulled out. When the tape measure end of the digital tape measure (31) is pulled out to a specified length, the control component can control the electric wheel (28) to stop working.

8. A portable steel tube laser drilling machine according to claim 7, characterized in that: The control assembly comprises a circular plate (32), a guide rod (33), a slide rod (34), a tension spring (35) and a control switch (36); the circular plate (32) is rotatably connected to the side of the mounting frame (22); the guide rod (33) is fixedly connected to the side of the circular plate (32); the slide rod (34) is slidably connected to the guide rod (33); and the tape measure end of the digital tape measure (31) is fixedly connected to the side of the slide rod (34); the tension spring (35) connects the circular plate (32) and the slide rod (34); and the control switch (36) is mounted on the guide rod (33) so that the slide rod (34) can contact and cooperate with the control switch (36) when sliding along the guide rod (33).

9. A portable steel tube laser drilling machine according to claim 1, characterized in that: It also includes a lifting component and a circular magnet (37), wherein the lifting component is used to drive the circular magnet (37) to lift and lower, so that the circular magnet (37) can descend to absorb the waste material to be cut by the steel pipe body (0), and then the circular magnet (37) can rise to drive the waste material to rise and move away from the steel pipe body (0).

10. A portable steel tube laser drilling machine according to claim 3, characterized in that: It also includes a mounting seat (38), a rotating sleeve (39), an electric push rod III (40), a contact ball (41) and a locking assembly, wherein the mounting seat (38) is connected to the top surface of the switch magnetic seat (9), the rotating sleeve (39) is symmetrically rotatably connected to both sides of the mounting seat (38), the electric push rod III (40) is fixedly connected to the rotating sleeve (39), the contact ball (41) is connected to the telescopic rod of the electric push rod III (40), and the locking assembly is used to lock the rotating sleeve (39) to fix the position of the electric push rod III (40), and then the electric push rod III (40) drives the contact ball (41) to move downward until it contacts the ground, so as to stabilize the steel pipe body (0).

Images