A steel pipe cutting machine with anti-splashing iron adhesion pipe orifice and cutting process

Abstract

The application discloses a steel pipe cutting machine with a spatter and scrap iron adhesion pipe orifice prevention function and a cutting process, and the device part comprises a laser cutting device, a scrap iron collecting assembly and a displacement pushing assembly. The laser cutting device comprises a cutting machine tool, a cutting chuck arranged on the cutting machine tool and a laser cutting head. The displacement pushing assembly can clamp the tail end of a processed pipe and sequentially drive the processed pipe to move to one side of the laser cutting device. In the application, a slag receiving head is arranged in the processed pipe, and in the laser cutting process, the slag receiving head can rotate relative to the processed pipe, so that a slag receiving opening on the slag receiving head is always perpendicular to the laser cutting head. The slag receiving head receives the scrap iron splashed to the inner wall of the processed pipe, thereby preventing the scrap iron from adhering to the wall of the processed pipe, avoiding the influence on subsequent processing, and avoiding the secondary damage to the wall of the processed pipe caused by the removal of the scrap iron.

Description

Technical Field

[0001] This invention belongs to the field of steel pipe processing technology, specifically relating to a steel pipe cutting machine and cutting process that prevents splashing iron filings from adhering to the pipe opening. Background Technology

[0002] Currently, laser pipe cutting machines are commonly used to obtain steel pipes of the required length. During cutting, the metal pipe is fed forward to a preset length through a pipe clamp. The pipe clamp clamps the pipe and rotates it, while the laser cutter starts cutting the pipe. After cutting, the pipe falls into the hopper under gravity. Laser cutting is convenient and fast, but it generates a large amount of metal debris during the cutting process. These fine metal debris can enter the inside of the pipe and adhere to the cut pipe wall. This metal debris can adversely affect subsequent use, such as causing poor welding.

[0003] Chinese patent publication number "CN221494611U" discloses a slag removal device for a laser cutting machine for steel structure processing, including a support plate. The support plate has a slag removal mechanism inside, and the inclined plate has a telescopic mechanism outside. A locking block is engaged inside the scraper, and the rotating block is installed with the scraper to facilitate the replacement and cleaning of the scraper.

[0004] The aforementioned patent uses a scraper to remove metal debris adhering to the steel pipe, preventing the metal chips from affecting subsequent welding. However, to ensure thorough removal of the attached metal, the scraper must come into full contact with the inner wall of the steel pipe and apply considerable force, which can easily cause secondary damage to the inner wall of the steel pipe during this process. Therefore, there is an urgent need for a cutting device that can prevent the metal chips generated during laser cutting from affecting the closure of the steel pipe. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides a steel pipe cutting machine and cutting process with anti-splashing iron filings adhering to the pipe opening, in order to solve the technical problem that iron filings generated during laser cutting adhere to the inner wall of the steel pipe, which can easily cause adverse effects during subsequent processing.

[0006] To achieve the above objectives, the specific technical solution of the present invention is as follows:

[0007] In a first aspect, a steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening includes a laser cutting device, an iron filings collection assembly, and a displacement pushing assembly. The laser cutting device includes a cutting machine tool, and a cutting chuck and a laser cutting head mounted on the cutting machine tool.

[0008] The cutting chuck is used to clamp the pipe being processed and to rotate it. The laser cutting head can emit a laser beam towards one side of the pipe being processed to perform the laser cutting operation.

[0009] The displacement pushing assembly can clamp the tail end of the pipe to be processed and sequentially drive the pipe to be processed to move to the side of the laser cutting device.

[0010] The scrap iron collecting assembly comprises a cantilever rod, a stable clamping assembly, and a slag receiving head fixed at the end of the cantilever rod. The cantilever rod is installed on the clamping end of the stable clamping assembly and can move horizontally under the drive of the stable clamping assembly, thereby driving the slag receiving head to pass through the pipe to be processed and move directly below the laser cutting head. The slag receiving head is provided with a slag receiving opening.

[0011] Further, the stable clamping assembly comprises a stable support and two clamping units symmetrically arranged on the stable support. The clamping units form a clamping area matched with the cantilever rod, which can clamp the cantilever rod and push the cantilever rod to move to the side of the laser cutting device.

[0012] Further, the clamping unit comprises a clamping base, a clamping driving member, and a plurality of clamping wheels. The clamping bases in the two clamping units are slidably connected with the sliding seat and can slide under the drive of the clamping driving member. The sliding direction of the clamping base is perpendicular to the driving direction of the displacement pushing assembly. The clamping wheels are arranged on the top surface of the corresponding clamping base in sequence, and the arrangement direction is the same as the driving direction of the displacement pushing assembly.

[0013] Further, the bottom of each clamping wheel in one of the clamping units is provided with a transmission gear. The transmission gears are connected by a chain transmission. One side of the chain is provided with a first driving gear in meshing engagement. The corresponding clamping base is provided with a driving motor. The output shaft of the driving motor is connected with the first driving gear.

[0014] Further, the displacement pushing assembly comprises a rack main body, a sliding seat, and a feeding chuck, a displacement sensor, and a displacement driving member installed on the sliding seat. The sliding seat is slidably connected with the rack main body and can freely move horizontally under the drive of the displacement driving member. The feeding chuck is used to clamp the pipe to be processed. The displacement sensor is installed on the side of the sliding seat and is used to detect the distance moved by the sliding seat.

[0015] Further, the displacement driving member adopts a servo motor. The output shaft of the servo motor penetrates through the sliding seat and is fixed with a second driving gear. The side of the rack main body is provided with a rack in meshing engagement with the second driving gear.

[0016] Further, the steel pipe cutting machine further comprises a suction assembly. The suction assembly comprises a vacuum pump and a cooling pool. The output end of the vacuum pump is connected into the cooling pool through an air pipe. The slag receiving head is provided with a material receiving cavity in communication with the material receiving opening; the cantilever rod adopts a hollow pipe and the inner cavity is in communication with the material receiving cavity of the slag receiving head. The tail end of the cantilever rod is connected with the input end of the vacuum pump through an air pipe.

[0017] Further, the cutting chuck is provided with four clamping jaws arranged in a cross shape; each clamping jaw is provided with a roller.

[0018] Further, the outer ring of the slag receiving head is provided with a plurality of ball bearings.

[0019] In a second aspect, a cutting process of the steel pipe cutting machine with the anti-splashing iron pipe opening adhesion is provided, which comprises the following steps:

[0020] S1, the end of the pipe to be processed is sequentially clamped through the feeding chuck and the cutting chuck.

[0021] S2, the cantilever rod provided with the slag receiving head is installed in the clamping area between the two clamping units, and the two clamping units clamp the side surfaces of the cantilever rod.

[0022] S3, the driving motor is started to drive the first driving gear to rotate, and the clamping wheels are driven to rotate under the transmission of the chain, and then the cantilever rod moves to the side of the laser cutting device. The slag receiving head installed on the cantilever rod gradually penetrates the inner wall of the pipe to be processed and moves to the position directly below the laser cutting head.

[0023] S4, the pipe to be processed is driven to rotate by the cutting chuck. At the same time, the laser cutting head emits laser to the outer wall of the pipe to be processed to perform laser cutting operation.

[0024] S5, the pipe cut externally is removed, and the pipe to be processed is pushed to move to the side of the laser cutting head by the displacement pushing assembly.

[0025] S6, the step S4 and the step S5 are repeated until the cutting of the whole pipe to be processed is completed.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] In the present application, the slag receiving head is arranged in the pipe to be processed, and in the laser cutting process, the slag receiving head can rotate relative to the pipe to be processed so that the slag receiving opening of the slag receiving head is always opposite to the laser cutting head. The slag receiving head receives the iron scraps splashed on the inner wall of the pipe to be processed, thereby preventing the iron scraps from adhering to the wall of the pipe to be processed, affecting the subsequent processing, and avoiding the secondary damage to the wall of the pipe to be processed caused by removing the iron scraps. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0029] Figure 2 It is a schematic diagram of the structure of the displacement pushing assembly in the present application;

[0030] Figure 3 Figure 1 is a schematic view of the slag head connecting structure in the present application.

[0031] Reference signs: 100, pipe to be processed; 1, laser cutting device; 2, stable clamping assembly; 3, displacement pushing assembly; 4, cutting machine tool; 5, laser cutting head; 6, cantilever rod; 7, slag head; 8, material receiving cavity; 9, machine tool main body; 10, slide; 11, feeding chuck; 12, material receiving port. DETAILED DESCRIPTION

[0032] In the description of the present application, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] The present application will be further described below in conjunction with the drawings.

[0034] As shown in Figure 1 and 2 , a steel pipe cutting machine with anti-splashing iron adhesion pipe port comprises a laser cutting device 1, an iron adhesion collecting assembly and a displacement pushing assembly 3. The laser cutting device 1 comprises a cutting machine tool 4, and a cutting chuck and a laser cutting head 5 arranged on the cutting machine tool 4. The cutting chuck is used to clamp the pipe to be processed 100 and drive it to rotate. The laser cutting head 5 can emit laser to one side of the pipe to be processed 100 to perform laser cutting operation. The displacement pushing assembly 3 can form clamping on the tail end of the pipe to be processed 100 and sequentially drive the pipe to be processed 100 to move to one side of the laser cutting device 1 to gradually complete the cutting of the whole pipe. The collecting end of the iron adhesion collecting assembly extends into the pipe to be processed 100 to receive the iron adhesion splashed to the pipe wall during cutting.

[0035] In some embodiments, four clamping jaws arranged in a cross shape are arranged on the cutting chuck, and rollers are arranged on each clamping jaw. The rollers can form central positioning clamping on the pipe to be processed 100, and at the same time, the displacement pushing assembly 3 can smoothly push the remaining part of the pipe to be processed 100 to move to one side of the laser cutting head 5 during subsequent processing.

[0036] As shown in Figure 1 and 3As shown, the iron filings collecting assembly comprises a cantilever rod 6, a stable clamping assembly 2, and a slag receiving head 7 fixed at the end of the cantilever rod 6. The cantilever rod 6 is installed on the clamping end of the stable clamping assembly 2 and can move horizontally under the drive of the stable clamping assembly 2, thereby driving the slag receiving head 7 to pass through the pipe to be processed 100 and move directly below the laser cutting head 5. The inside of the slag receiving head 7 is provided with a receiving cavity 8, and the top is provided with a slag receiving port communicating with the receiving cavity 8. When the laser cutting head 5 cuts the pipe to be processed 100, the laser is focused on the surface of the pipe to be processed 100 from top to bottom, and the iron filings splashed to the inner wall of the pipe to be processed 100.

[0037] In this embodiment, a plurality of balls are installed on the outer ring of the slag receiving head 7. When the slag receiving head 7 extends into the pipe to be processed 100, the balls on the outer ring of the slag receiving head 7 are in close contact with the inner wall of the pipe to be processed 100, which ensures the stability of the relative position between the slag receiving head 7 and the pipe to be processed 100 when the pipe to be processed 100 rotates, thereby ensuring that the slag receiving port on the slag receiving head 7 is always directly opposite the laser cutting head 5 during the entire cutting process.

[0038] In some embodiments, the steel pipe cutting machine further comprises a suction assembly. The suction assembly comprises a vacuum pump and a cooling pool. The output end of the vacuum pump is connected to the cooling pool through an air pipe. The cantilever rod 6 is a hollow pipe, and the inner cavity is in communication with the receiving cavity 8 on the slag receiving head 7. The tail end of the cantilever rod 6 is connected to the input end of the vacuum pump through an air pipe. During processing, the iron filings entering the slag receiving head 7 can be concentrated and output to the side of the cooling pool through the vacuum pump.

[0039] The stable clamping assembly 2 is installed on the side of the displacement pushing assembly 3 away from the laser cutting device 1, can clamp the tail end of the cantilever rod 6, and drive the cantilever rod 6 and the slag receiving head 7 to pass through the pipe to be processed 100 and move the slag receiving head 7 directly below the laser cutting head 5.

[0040] The stable clamping assembly 2 comprises a stable support and two clamping units symmetrically arranged on the stable support. The clamping units form a clamping area matched with the cantilever rod 6 between them, which can clamp the cantilever rod 6. The clamping unit comprises a clamping base, a clamping driving member and a plurality of clamping wheels. The clamping bases in the two clamping units are both in sliding connection with the sliding seat 10 and can slide under the drive of the clamping driving member. The sliding direction of the clamping base is perpendicular to the driving direction of the displacement pushing assembly 3. The clamping wheels are arranged in sequence on the top surface of the corresponding clamping base, and the arrangement direction is the same as the driving direction of the displacement pushing assembly 3.

[0041] The bottom of each card wheel in one of the clamping units is provided with a transmission gear. The transmission gears are connected by a chain transmission. One side of the chain is provided with a first driving gear that meshes. A corresponding clamping base is provided with a driving motor. The output shaft of the driving motor is connected to the first driving gear.

[0042] During the machining of the pipe 100, the clamping drive of the two clamping units drives the clamping bases to move towards each other, thereby driving the card wheels to move towards each other and fit the outer surface of the cantilever rod 6. After clamping the cantilever rod 6, the first driving gear is driven to rotate by the driving motor. The card wheels are driven to rotate under the transmission of the chain, thereby driving the cantilever rod 6 to move towards the laser cutting device 1, and the slag head 7 gradually passes through the pipe 100 to be machined and moves to the position directly below the laser cutting head 5.

[0043] In this embodiment, the clamping drive is a pneumatic cylinder.

[0044] As shown in Figure 2 The displacement pushing assembly 3 includes a rack body 9, a sliding seat 10, a feeding chuck 11, a displacement sensor, and a displacement drive installed on the sliding seat 10. The sliding seat 10 is slidingly connected to the rack body 9 and can freely move horizontally under the drive of the displacement drive. The feeding chuck 11 is used to clamp the pipe 100 to be machined. The displacement sensor is installed on the side of the sliding seat 10 and is used to detect the distance moved by the sliding seat 10, thereby controlling the length of the pipe to be cut.

[0045] In this embodiment, the displacement drive is a servo motor. The output shaft of the servo motor passes through the sliding seat 10 and is fixed with a second driving gear. The side of the rack body 9 is provided with a rack that meshes with the second driving gear. When the second driving gear is driven to rotate by the servo motor, the horizontal free movement of the sliding seat 10 can be realized by cooperating with the rack.

[0046] According to the above cutting process of the steel pipe cutting machine with anti-splashing iron filings and pipe opening adhesion, the following steps are included:

[0047] Step S1, the end of the pipe 100 to be machined is sequentially passed through the feeding chuck 11 and the cutting chuck and clamped.

[0048] Step S2, the cantilever rod 6 provided with the slag head 7 is installed in the clamping area between the two clamping units. The two clamping units clamp the sides of the cantilever rod 6.

[0049] Step S3, start the driving motor, the driving motor drives the first driving gear to rotate. Under the transmission of the chain, each card wheel is driven to rotate, and in turn drives the cantilever rod 6 to move to the side of the laser cutting device 1. The slag head 7 installed on the cantilever rod 6 gradually penetrates the inner pipe wall of the pipe to be processed 100 and moves to the directly below the laser cutting head 5.

[0050] Step S3, start the servo motor on the slide 10, and in turn drive the slide 10 to move to the side of the laser cutting device 1. The pipe to be processed 100 clamped on the feeding chuck 11 moves synchronously with the slide. The displacement sensor is used to measure the distance of the pipe to be processed 100 moving to the side of the laser cutting device 1. When the pipe to be processed 100 exposes the required cutting length of the pipe, it stops.

[0051] Step S4, the cutting chuck drives the rotation of the pipe to be processed 100. At the same time, the laser cutting head 5 emits laser to the outer wall of the pipe to be processed 100, and performs laser cutting operation. During the processing, the slag head 7 rotates relatively when the pipe to be processed 100 rotates, so that the slag port on the slag head 7 is always opposite to the laser cutting head 5. The slag head 7 receives the iron filings splashed on the inner pipe wall of the pipe to be processed.

[0052] Step S5, remove the outer cut pipe, and push the pipe to be processed 100 to the side of the laser cutting head 5 by the displacement pushing assembly.

[0053] Step S6, repeat step S4 and step S5 until the cutting of the whole pipe to be processed 100 is completed.

[0054] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening, comprising a laser cutting device (1), an iron filings collection assembly, and a displacement pushing assembly (3); the laser cutting device (1) comprises a cutting machine tool (4), and a cutting chuck and a laser cutting head (5) mounted on the cutting machine tool (4), characterized in that: The cutting chuck is used to clamp the pipe (100) to be processed and drive it to rotate; the laser cutting head (5) can emit laser to one side of the pipe (100) to perform laser cutting operation; The displacement pushing component (3) can clamp the tail end of the processed pipe (100) and drive the processed pipe (100) to move towards the laser cutting device (1) side in turn. The displacement pushing component (3) includes a frame body (9), a slide (10), a feeding chuck (11), a displacement sensor, and a displacement drive installed on the slide (10); the slide (10) is slidably connected to the frame body (9) and can move freely horizontally under the drive of the displacement drive; the feeding chuck (11) is used to clamp the processed pipe fitting (100); the displacement sensor is installed on the side of the slide (10) to detect the distance moved by the slide (10); The scrap collection assembly includes a cantilever rod (6), a stabilizing clamping assembly (2), and a slag receiving head (7) fixed to the end of the cantilever rod (6); the cantilever rod (6) is installed on the clamping end of the stabilizing clamping assembly (2) and can move horizontally under the drive of the stabilizing clamping assembly (2), thereby driving the slag receiving head (7) through the processed pipe (100) and moving it directly below the laser cutting head (5); the slag receiving head (7) is provided with a slag receiving port; The outer ring of the slag receiving head (7) is equipped with multiple ball bearings.

2. A steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening as described in claim 1, characterized in that: The stabilizing clamping assembly (2) includes a stabilizing bracket and two clamping units symmetrically arranged on the stabilizing bracket; the clamping units form a clamping area that cooperates with the cantilever rod (6), which can clamp the cantilever rod (6) and push the cantilever rod (6) to move towards the laser cutting device (1).

3. A steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening as described in claim 2, characterized in that: The clamping unit includes a clamping base, a clamping drive component, and multiple clamping wheels; the clamping bases in both clamping units are slidably connected to the slide (10) and can slide under the drive of the clamping drive component; the sliding direction of the clamping base is perpendicular to the driving direction of the displacement pushing component (3); each clamping wheel is arranged sequentially on the top surface of the corresponding clamping base, and the arrangement direction is the same as the driving direction of the displacement pushing component (3).

4. A steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening as described in claim 3, characterized in that: Each of the clamping units has a transmission gear at the bottom of each clamping wheel; the transmission gears are connected by a chain drive; a first drive gear meshes with the chain on one side; a drive motor is provided on the corresponding clamping base; the output shaft of the drive motor is connected to the first drive gear.

5. A steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening as described in claim 1, characterized in that: The displacement drive is a servo motor; the output shaft of the servo motor passes through the slide (10) and is fixed with a second drive gear; the side of the frame body (9) is provided with a rack that meshes with the second drive gear.

6. A steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening as described in claim 1, characterized in that: It also includes an adsorption component; the adsorption component includes a vacuum pump and a cooling pool; the output end of the vacuum pump is connected to the cooling pool through a gas pipe; the slag receiving head (7) is provided with a receiving cavity (8) that is connected to the receiving port (12); the cantilever rod (6) is a hollow pipe; the inner cavity of the cantilever rod (6) is connected to the receiving cavity (8) on the slag receiving head (7); the tail end of the cantilever rod (6) is connected to the input end of the vacuum pump through a gas pipe.

7. A steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening as described in claim 1, characterized in that: The cutting chuck has four jaws arranged in a grid pattern; each jaw has a roller at its end.

8. The cutting process of a steel pipe cutting machine with anti-splashing iron filings adhering to the pipe opening as described in claim 4, characterized in that: Includes the following steps: Step S1: The end of the pipe fitting (100) to be processed passes through the clamping end of the feeding chuck (11) and the displacement pushing assembly (3) in sequence and is clamped. Step S2: Install the cantilever rod (6) with the slag receiving head (7) in the clamping area between the two clamping units; the two clamping units clamp the sides of the cantilever rod (6) respectively; Step S3: Start the drive motor, which drives the first drive gear to rotate; under the transmission of the chain, it drives each chuck to rotate, thereby driving the cantilever rod (6) to move towards the side of the laser cutting device (1); the slag receiving head (7) installed on the cantilever rod (6) gradually passes through the inner wall of the pipe to be processed (100) and moves to directly below the laser cutting head (5); In step S4, the cutting chuck drives the rotation of the pipe (100) being processed; at the same time, the laser cutting head (5) emits a laser to the outer wall of the pipe (100) being processed to perform laser cutting. Step S5: Remove the externally cut pipe and push the processed pipe (100) towards the laser cutting head (5) side using the displacement pushing component; Step S6, repeat steps S4 and S5 until the cutting of the entire processed pipe (100) is completed.

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