A combined pipe cutting and chamfering device for seamless steel pipes

Abstract

This invention discloses a seamless steel pipe cutting and chamfering assembly, relating to the field of steel pipe processing technology. The invention includes a base, a support plate fixedly connected to the top of the base, a pipe cutting device fixedly connected to the top of the support plate, and a chamfering device slidably connected to the top of the base; a clamping mechanism is provided on one side of the chamfering device. This invention utilizes a rotary three-station design (pipe cutting, chamfering, and unloading). After pipe cutting, the steel pipe can automatically rotate to the chamfering station and then to the unloading station, avoiding inter-process transfer waiting and improving processing efficiency compared to traditional step-by-step methods. It employs a dual-axis motor in conjunction with a semi-shaft gear, a second gear, and a drive disc to achieve synchronous control of the intermittent rotation of the rotary table and the lifting and lowering of the toothed plate. Furthermore, the steel pipe is clamped during the cutting and chamfering processes, eliminating the need for secondary positioning, thus improving production efficiency and processing accuracy while reducing equipment costs and maintenance complexity.

Description

Technical Field

[0001] This invention belongs to the field of steel pipe processing technology, and in particular relates to a combined device for cutting and chamfering seamless steel pipes. Background Technology

[0002] Seamless steel pipes, as an important basic industrial material, are widely used in petroleum, chemical, and machinery manufacturing industries. In their processing, pipe cutting, chamfering, and blanking are core processes that directly affect the dimensional accuracy and performance of the steel pipes. In traditional processing methods, pipe cutting, chamfering, and blanking are usually completed by independent equipment or workstations, requiring frequent transfer of steel pipes between processes. This leads to the following problems: First, multiple clamping operations easily generate positioning errors, affecting processing accuracy; second, manual transfer and operation are highly dependent, resulting in low efficiency and high labor intensity; third, discontinuous process connections make it difficult to achieve large-scale, automated production, thus restricting capacity expansion.

[0003] Although some combined processing equipment has emerged in the existing technology, there are still obvious defects: First, the clamping mechanism is mostly designed for a single station, which cannot complete the clamping and release of multiple processes simultaneously, and requires an additional power source, resulting in a complex structure; Second, process switching relies on manual intervention or complex mechanical transmission, making it difficult to guarantee timing accuracy; Third, adjusting the cutting length of steel pipes requires disassembling the equipment for recalibration, which lacks flexibility; Fourth, the material feeding process requires manual assistance, which can easily lead to problems such as material jamming or damage to the surface of the steel pipe.

[0004] To address these issues, we provide a seamless steel pipe cutting and chamfering assembly to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a seamless steel pipe cutting and chamfering assembly device. Through the cooperation of the clamping mechanism and the driving mechanism, it solves the problems of low process connection efficiency, poor positioning accuracy and insufficient automation in the existing seamless steel pipe cutting and chamfering assembly devices.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention relates to a seamless steel pipe cutting and chamfering assembly, comprising a base, a support plate fixedly connected to the top of the base, a pipe cutting device fixedly connected to the top of the support plate, and a chamfering device slidably connected to the top of the base; a clamping mechanism is provided on one side of the chamfering device, the clamping mechanism comprising a fixed plate fixedly connected to one side of the chamfering device, a turntable rotatably connected to the inner wall of the fixed plate through a bearing seat, and a clamping groove formed on the surface of the turntable; A driving mechanism is provided on one side of the fixed plate. The driving mechanism includes a first electric push rod fixedly connected to one side of the fixed plate, a limiting block fixedly connected to the output end of the first electric push rod, and a toothed plate slidably connected to the inner side of the limiting block.

[0008] The invention is further configured such that a first gear is rotatably connected to the inner cavity of the clamping groove via a bearing seat, a bevel gear ring is fixedly connected to the inner side of the first gear, a driving bevel gear meshes with the surface of the bevel gear ring, the first gear receives the driving force of the toothed plate, and converts the horizontal rotational motion into the vertical rotational motion of the driving bevel gear through the bevel gear ring, thereby realizing a 90-degree change in the transmission direction and saving space.

[0009] The invention is further configured such that a threaded rod is fixedly connected to the shaft of the drive bevel gear, and a threaded tube is threadedly connected to the surface of the threaded rod. The drive bevel gear drives the threaded rod to rotate, causing the threaded tube to feed axially and radially clamp the seamless steel tube located in the inner cavity of the clamping groove. When rotating in the opposite direction, the steel tube is released, thus achieving self-locking clamping.

[0010] The invention is further configured such that a dual-axis motor is fixedly connected to one side of the fixed plate, and a semi-gear is fixedly connected to one of the output shafts of the dual-axis motor. A second gear meshes with the surface of the semi-gear, and the axis of the second gear is fixedly connected to the surface of the turntable. The output shaft of the semi-gear meshes with the output shaft of the second gear once for each rotation, and disengages after driving the output shaft of the turntable to rotate 120 degrees, thereby achieving precise indexing and positioning, facilitating the implementation of the corresponding process. The intermittent rotation of the output shaft of the turntable enables the cyclic switching of three workstations, realizing continuous operation under the drive of a single motor.

[0011] The invention is further configured such that the other output shaft of the dual-axis motor is connected to a drive disk via a synchronous belt drive. A guide post is fixedly connected to one side of the drive disk, and a sliding frame is slidably connected to the surface of the guide post. The drive disk converts the rotational motion of the motor into the eccentric circular motion of the guide post, which is then converted into linear reciprocating motion via the sliding frame, providing lifting power for the toothed plate. When the turntable rotates 120 degrees, the first electric push rod is activated via the control panel. The output end of the first electric push rod drives the toothed plate closer to the turntable via a limit block, so that its two sides mesh with the first gear of the pipe cutting process and the first gear of the unloading process, respectively. The fixed cylinder drives the toothed plate to move up and down via an extension rod. The gear located in the pipe cutting process rotates forward under the action of the toothed plate to clamp, while the gear located in the unloading groove rotates in the opposite direction on the toothed plate to release the clamp.

[0012] The invention is further configured such that a fixed cylinder is fixedly connected to one side of the sliding frame, a spring is fixedly connected to the inner cavity of the fixed cylinder, a baffle is fixedly connected to the other end of the spring, and an extension rod is fixedly connected to the other end of the baffle. One end of the extension rod is fixedly connected to one side of the toothed plate, and a limiting groove adapted to the limiting block is opened on one side of the toothed plate. The limiting groove cooperates with the limiting block to limit the toothed plate, allowing it to move in the vertical direction. The spring and the extension rod facilitate the axial movement of the toothed plate, so that the toothed plate is in a separated state during the rotation of the turntable, avoiding interference of movement.

[0013] The invention is further configured such that a threaded hole is provided on one side of the support plate, and a bolt rod is threadedly connected to the inner cavity of the threaded hole. One end of the bolt rod is rotatably connected to one side of the chamfering device through a bearing seat. By rotating the bolt rod, the chamfering device is driven to move axially along the base slide groove, thereby adjusting the distance between the pipe cutting device and the chamfering device, thus controlling the cutting length of the steel pipe and adapting to the processing of steel pipes of different specifications.

[0014] The present invention is further configured such that the top of the base is provided with a sliding groove adapted to the chamfering device, and the top of the base is provided with scale lines, which can intuitively display the adjustment amount, and the sliding groove provides sliding guidance for the chamfering device.

[0015] The present invention is further configured such that a feeding channel is fixedly connected to one side of the fixed plate, a second electric push rod is fixedly connected to the bottom of the feeding channel, and a feeding block is fixedly connected to the output end of the second electric push rod. When the steel pipe at the feeding station is detached, the control panel starts the second electric push rod, and the output end of the second electric push rod drives the feeding block to move. The feeding block pushes the steel pipe out and makes it fall into the feeding channel, which is convenient for collection, reduces manual intervention, and reduces labor intensity.

[0016] The invention is further configured such that the pipe cutting device has a control panel on the front, which integrates control buttons and parameter setting functions for each motor and electric push rod to achieve automated operation.

[0017] The present invention has the following beneficial effects.

[0018] 1. This invention utilizes a rotary three-station design (pipe cutting, chamfering, and unloading). After the steel pipe is cut, it can automatically rotate to the chamfering station and then to the unloading station, avoiding transfer waiting between processes. This improves processing efficiency compared to traditional step-by-step processes. A dual-axis motor, along with a half-shaft gear, a second gear, and a drive disc, enables synchronous control of the intermittent rotation of the rotary table and the lifting of the toothed plate. Furthermore, the steel pipe is in a clamped state during the cutting and chamfering processes, eliminating the need for secondary positioning. This improves production efficiency and processing accuracy while reducing equipment costs and maintenance complexity.

[0019] 2. The turntable of this invention rotates intermittently in 120-degree increments. Combined with the length adjustment mechanism of the slide groove and bolt rod, it can accurately control the cutting length of the steel pipe. The threaded pipe in the clamping groove is radially fed and clamped to avoid steel pipe deviation and ensure consistent chamfer angle.

[0020] 3. The present invention has a second electric push rod and a feeding block at the feeding station. After the steel pipe is chamfered, it is automatically pushed out and falls into the feeding channel without manual intervention, reducing the risk of material jamming and improving safety.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a perspective view of a seamless steel pipe cutting and chamfering assembly.

[0024] Figure 2 This is a rear view of a seamless steel pipe cutting and chamfering assembly.

[0025] Figure 3 This is a diagram showing the assembly of the drive disc, guide column, and sliding frame in a seamless steel pipe cutting and chamfering assembly.

[0026] Figure 4 This is a cross-sectional view of the fixed cylinder in a seamless steel pipe cutting and chamfering assembly.

[0027] Figure 5 This is a diagram showing the engagement of a semi-gear and a second gear in a seamless steel pipe cutting and chamfering assembly.

[0028] Figure 6 This is a diagram showing the fit between the turntable and the first gear in a seamless steel pipe cutting and chamfering assembly.

[0029] Figure 7 This is a diagram showing the fit between the first gear and the bevel gear ring in a seamless steel pipe cutting and chamfering assembly.

[0030] Figure 8 This is a diagram showing the fit between a bevel gear ring and a drive bevel gear in a seamless steel pipe cutting and chamfering assembly.

[0031] In the attached diagram: 1. Base; 2. Support plate; 3. Pipe cutting device; 4. Chamfering device; 5. Fixing plate; 6. Turntable; 7. Clamping groove; 8. First electric push rod; 9. Limiting block; 10. Toothed plate; 11. Limiting groove; 12. First gear; 13. Bevel gear ring; 14. Drive bevel gear; 15. Threaded rod; 16. Threaded pipe; 17. Dual-axis motor; 18. Half-shaped gear; 19. Second gear; 20. Drive disc; 21. Guide post; 22. Sliding frame; 23. Fixing cylinder; 24. Spring; 25. Baffle; 26. Extension rod; 27. Threaded hole; 28. Bolt rod; 29. ​​Slide groove; 30. Scale line; 31. Discharge channel; 32. Second electric push rod; 33. Discharge block. Detailed Implementation

[0032] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Example 1: Please refer to Figures 1-8 This invention relates to a seamless steel pipe cutting and chamfering assembly, comprising a base 1, a support plate 2 fixedly connected to the top of the base 1, a pipe cutting device 3 fixedly connected to the top of the support plate 2, a chamfering device 4 slidably connected to the top of the base 1, a clamping mechanism provided on one side of the chamfering device 4, the clamping mechanism including a fixed plate 5 fixedly connected to one side of the chamfering device 4, a turntable 6 rotatably connected to the inner wall of the fixed plate 5 via a bearing seat, a clamping groove 7 formed on the surface of the turntable 6, a first gear 12 rotatably connected to the inner cavity of the clamping groove 7 via a bearing seat, a bevel gear ring 13 fixedly connected to the inner side of the first gear 12, a driving bevel gear 14 meshing on the surface of the bevel gear ring 13, a threaded rod 15 fixedly connected to the shaft of the driving bevel gear 14, a threaded tube 16 threadedly connected to the surface of the threaded rod 15, a dual-axis motor 17 fixedly connected to one side of the fixed plate 5, a semi-shaft gear 18 fixedly connected to one output shaft of the dual-axis motor 17, a second gear 19 meshing on the surface of the semi-shaft gear 18, and the shaft of the second gear 19 fixedly connected to the surface of the turntable 6.

[0034] Further details: Both the pipe cutting device 3 and the chamfering device 4 are existing technologies, used for cutting steel pipes and chamfering the end faces of steel pipes, respectively. There are three clamping slots 7, equidistantly distributed at 120-degree intervals, corresponding to the pipe cutting station, chamfering station, and unloading station, respectively. After the pipe cutting process is completed, the pipes in the clamped state can be moved to the chamfering station by rotating the turntable 6, improving production efficiency, reducing tool change time, and lowering operational complexity. The first gear 12 receives the driving force of the toothed plate 10, converting the horizontal rotational motion into driving bevel gears through the bevel gear ring 13. The vertical rotation of wheel 14 enables a 90-degree change in transmission direction, saving space. It drives bevel gear 14 to rotate threaded rod 15, causing threaded tube 16 to feed axially and radially clamp the seamless steel tube located in the inner cavity of clamping groove 7. When rotating in the opposite direction, it releases the steel tube, achieving self-locking clamping. Half gear 18 meshes with second gear 19 once per revolution, driving turntable 6 to rotate 120 degrees before disengaging, achieving precise indexing and positioning, facilitating the implementation of corresponding processes. The intermittent rotation of turntable 6 enables three-position cyclic switching, achieving continuous operation under single motor drive.

[0035] Example 2: Please refer to Figures 1-8 Based on embodiment 1, a driving mechanism is provided on one side of the fixed plate 5. The driving mechanism includes a first electric push rod 8 fixedly connected to one side of the fixed plate 5, a limiting block 9 fixedly connected to the output end of the first electric push rod 8, a toothed plate 10 slidably connected to the inner side of the limiting block 9, and a driving disk 20 connected to the other output shaft of the dual-axis motor 17 via a synchronous belt drive. A guide post 21 is fixedly connected to one side of the driving disk 20. A sliding frame 22 is slidably connected to the surface of the guide post 21. A fixed cylinder 23 is fixedly connected to one side of the sliding frame 22. A spring 24 is fixedly connected to the inner cavity of the fixed cylinder 23. A baffle 25 is fixedly connected to the other end of the spring 24. An extension rod 26 is fixedly connected to the other end of the baffle 25. One end of the extension rod 26 is fixedly connected to one side of the toothed plate 10. A limiting groove 11 adapted to the limiting block 9 is opened on one side of the toothed plate 10.

[0036] Further details: The drive disc 20 converts the rotational motion of the motor into the eccentric circular motion of the guide column 21, which is then converted into linear reciprocating motion through the sliding frame 22, providing lifting power for the toothed plate 10. The limiting groove 11 cooperates with the limiting block 9 to limit the toothed plate 10, allowing it to move vertically. When the turntable 6 rotates 120 degrees, the first electric push rod 8 is activated through the control panel. The output end of the first electric push rod 8 drives the toothed plate 10 closer to the turntable 6 through the limiting block 9, so that its two sides mesh with the first gear 12 of the pipe cutting process and the first gear 12 of the unloading process, respectively. The fixed cylinder 23 drives the toothed plate 10 to move up and down through the extension rod 26. The gear located in the pipe cutting process rotates forward under the action of the toothed plate 10 to clamp, while the gear located in the unloading groove rotates in the opposite direction on the toothed plate 10 to release the clamp. The spring 24 and the extension rod 26 facilitate the axial movement of the toothed plate 10, keeping it in a separated state during the rotation of the turntable 6 to avoid interference.

[0037] Example 3: Please refer to Figures 1-8 Based on Embodiments 1 and 2, a threaded hole 27 is provided on one side of the support plate 2, and a bolt rod 28 is threadedly connected to the inner cavity of the threaded hole 27. One end of the bolt rod 28 is rotatably connected to one side of the chamfering device 4 through a bearing seat. A sliding groove 29 adapted to the chamfering device 4 is provided on the top of the base 1. A scale line 30 is provided on the top of the base 1. A feeding channel 31 is fixedly connected to one side of the fixing plate 5. A second electric push rod 32 is fixedly connected to the bottom of the feeding channel 31. A feeding block 33 is fixedly connected to the output end of the second electric push rod 32. A control panel is provided on the front of the pipe cutting device 3.

[0038] Further details: By rotating the bolt rod 28, the chamfering device 4 is moved axially along the slide groove 29 of the base 1, adjusting the distance between the pipe cutting device 3 and the chamfering device 4, thereby controlling the cutting length of the steel pipe and adapting to the processing of steel pipes of different specifications. The scale line 30 on the top of the base 1 can intuitively display the adjustment amount. The slide groove 29 provides a sliding guide for the chamfering device 4. After the steel pipe is released from the feeding station, the control panel activates the second electric push rod 32. The output end of the second electric push rod 32 drives the feeding block 33 to move. The feeding block 33 pushes the steel pipe out, causing it to fall into the feeding channel 31 for easy collection, reducing manual intervention and labor intensity. The control panel integrates the control buttons and parameter setting functions of each motor and electric push rod to realize automated operation.

[0039] The working principle of this invention is as follows: Seamless steel pipes are conveyed to the clamping groove 7 of the loading station through the pipe cutting equipment 3. The control panel starts the pipe cutting equipment 3 to cut the pipes. At the same time, the dual-axis motor 17 starts. The output shaft of the dual-axis motor 17 drives the second gear 19 to rotate through the half-shaft gear 18. The second gear 19 drives the turntable 6 to rotate 120 degrees clockwise. The turntable 6 moves the cut steel pipe to the chamfering station. At the same time, the empty clamping groove 7 rotates to the pipe cutting station and the chamfered steel pipe rotates to the unloading station.

[0040] At this time, the first electric push rod 8 is activated via the control panel. The output end of the first electric push rod 8 drives the toothed plate 10 to approach the turntable 6 via the limit block 9, so that its two sides mesh with the first gear 12 of the pipe cutting process and the first gear 12 of the unloading process, respectively. During the rotation of the turntable 6, the drive plate 20 rotates synchronously with the dual-axis motor 17. The guide post 21 drives the fixed cylinder 23 to move downward via the sliding frame 22. The extension rod 26 pushes the toothed plate 10 to move towards the limit block 9. At this time, the toothed plate 10 meshes with the first gear 12 of the pipe cutting process, driving the first gear 12 to rotate. Through the bevel gear ring 13 and the drive bevel gear 14, the threaded rod 15 rotates, and the threaded tube 16 moves towards the steel pipe, completing the steel pipe clamping. At this time, the first gear 12 of the unloading process is released due to the reverse meshing of the toothed plate 10. The control panel activates the second electric push rod 32, and the unloading block 33 pushes the steel pipe outward, causing it to fall into the unloading channel 31 to complete the collection.

[0041] After the steel pipe is cut, chamfered, and discharged, the first electric push rod 8 retracts, the toothed plate 10 disengages from the first gear 12, and the dual-axis motor 17 continues to drive the turntable 6 to rotate 120 degrees. The turntable 6 returns to its initial position, ready for the next cycle. If the steel pipe cutting length needs to be adjusted, rotate the bolt rod 28 to push the chamfering device 4 along the slide 29. Observe the spacing through the scale line 30. After adjustment, tighten the bolt rod 28.

[0042] Through integrated design and automated control, this device enables continuous operation of seamless steel pipe cutting, chamfering, and blanking. During the cutting and chamfering processes, the steel pipe is in a clamped state, eliminating the need for secondary positioning and improving production efficiency and processing accuracy.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A seamless steel pipe cutting and chamfering assembly, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of a support plate (2), the support plate (2) is fixedly connected to the top of a pipe cutting device (3), and the base (1) is slidably connected to a chamfering device (4). The chamfering device (4) is provided with a clamping mechanism on one side. The clamping mechanism includes a fixed plate (5) fixedly connected to one side of the chamfering device (4), a turntable (6) rotatably connected to the inner wall of the fixed plate (5) through a bearing seat, and a clamping groove (7) opened on the surface of the turntable (6). A driving mechanism is provided on one side of the fixed plate (5). The driving mechanism includes a first electric push rod (8) fixedly connected to one side of the fixed plate (5), a limiting block (9) fixedly connected to the output end of the first electric push rod (8), and a toothed plate (10) slidably connected to the inner side of the limiting block (9). The inner cavity of the clamping groove (7) is rotatably connected to the first gear (12) through the bearing seat. The inner side of the first gear (12) is fixedly connected to the bevel gear ring (13), and the surface of the bevel gear ring (13) is meshed with the driving bevel gear (14). A threaded rod (15) is fixedly connected to the shaft of the drive bevel gear (14), and a threaded tube (16) is threadedly connected to the surface of the threaded rod (15). A dual-axis motor (17) is fixedly connected to one side of the fixed plate (5). A semi-shaft gear (18) is fixedly connected to one of the output shafts of the dual-axis motor (17). A second gear (19) meshes with the surface of the semi-shaft gear (18). The axis of the second gear (19) is fixedly connected to the surface of the turntable (6). The other output shaft of the dual-axis motor (17) is connected to a drive disk (20) via a synchronous belt drive. A guide post (21) is fixedly connected to one side of the drive disk (20), and a sliding frame (22) is slidably connected to the surface of the guide post (21). A fixed cylinder (23) is fixedly connected to one side of the sliding frame (22). A spring (24) is fixedly connected to the inner cavity of the fixed cylinder (23). A baffle (25) is fixedly connected to the other end of the spring (24). An extension rod (26) is fixedly connected to the other end of the baffle (25). One end of the extension rod (26) is fixedly connected to one side of the toothed plate (10). A limiting groove (11) adapted to the limiting block (9) is opened on one side of the toothed plate (10).

2. The seamless steel pipe cutting and chamfering assembly according to claim 1, characterized in that: The support plate (2) has a threaded hole (27) on one side, and a bolt rod (28) is threadedly connected to the inner cavity of the threaded hole (27). The end of the bolt rod (28) is rotatably connected to one side of the chamfering device (4) through a bearing seat.

3. The seamless steel pipe cutting and chamfering assembly according to claim 1, characterized in that: The base (1) has a groove (29) on its top that is compatible with the chamfering device (4), and the base (1) has a scale line (30) on its top.

4. The seamless steel pipe cutting and chamfering assembly according to claim 1, characterized in that: A feeding channel (31) is fixedly connected to one side of the fixed plate (5), and a second electric push rod (32) is fixedly connected to the bottom of the feeding channel (31). A feeding block (33) is fixedly connected to the output end of the second electric push rod (32).

5. The seamless steel pipe cutting and chamfering assembly according to claim 1, characterized in that: The pipe cutting device (3) has a control panel on its front.

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