Positioning and deviation rectifying device of steel pipe cutting machine
By using a laser displacement sensor and a servo motor-driven correction wheel structure, combined with a buffer spring energy absorption design, the accuracy and response speed problems of traditional steel pipe cutting machine positioning and correction devices are solved, achieving efficient and automated correction and protection of the equipment and steel pipe surface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAZHOU SHENGZHONGYU METAL PRODUCTS CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional steel pipe cutting machines have low positioning and correction devices with low adjustment accuracy, slow response speed, and poor adaptability, making it difficult to adapt to changes in high-speed production lines and affecting production efficiency.
A laser displacement sensor is used to monitor the steel pipe conveying trajectory. A servo motor drives a threaded rod to adjust the position of the correction wheel, and a buffer spring is equipped to absorb the impact force, so as to realize automatic correction and buffering.
It achieves high-precision automatic correction of steel pipes, improves production efficiency, avoids mechanical collision damage, and is suitable for conveying steel pipes of different diameters and lengths.
Smart Images

Figure CN224168861U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe processing technology, specifically to a positioning and correction device for a steel pipe cutting machine. Background Technology
[0002] In the production, processing and distribution of steel pipes, cutting is one of the key processes, which directly affects the dimensional accuracy and subsequent performance of the steel pipes. During the feeding and positioning process of traditional steel pipe cutting machines, when the steel pipes are conveyed on rollers or conveyor belts, they may shift laterally due to mechanical vibration, inertia or wear of the guide device, resulting in inaccurate cutting position. Therefore, a positioning and correction device is needed to correct the deviation.
[0003] Traditional correction methods (such as mechanical baffles and manual adjustment) rely on manual intervention, which is slow and difficult to adapt to high-speed production lines. Furthermore, when the diameter, length, and weight of the steel pipe change, traditional correction devices cannot automatically adapt and require frequent parameter adjustments, which affects production efficiency.
[0004] To address the aforementioned issues, we have made innovative designs based on the existing positioning and correction device structure of the steel pipe cutting machine. Utility Model Content
[0005] The purpose of this utility model is to provide a positioning and correction device for a steel pipe cutting machine, so as to solve the problems of low adjustment accuracy, slow response speed, poor adaptability and insufficient automation of traditional correction devices mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning and correction device for a steel pipe cutting machine, comprising a base, wherein a support leg is fixedly installed at the lower end of the base; a conveying assembly, wherein the conveying assembly is installed on the upper end of the base; a workpiece, wherein the workpiece is disposed on the upper end of the conveying assembly; correction wheels, wherein the correction wheels are disposed on the left and right sides of the workpiece; an adjusting assembly, wherein the adjusting assembly is disposed on the upper end of the base and is connected to the correction wheels; and a buffer assembly, wherein the buffer assembly is disposed outside the adjusting assembly; wherein the adjusting assembly is used to adjust the position of the correction wheels on the left and right sides; and the buffer assembly is used to buffer the thrust generated by the contact between the workpiece and the correction wheels.
[0007] Preferably, the adjustment assembly includes a gantry, a battery, a control module, and a laser displacement sensor. The gantry is fixedly installed on the upper end of the base, and the battery is fixedly installed on the outside of the gantry. The control module is fixedly installed on the outside of the gantry, and the laser displacement sensor is fixedly installed on the outside of the gantry. The battery is electrically connected to the control module and the laser displacement sensor.
[0008] Preferably, the adjustment assembly further includes a servo motor, a counter-rotating threaded rod, and a threaded connector. The servo motor is fixedly installed on the outside of the gantry frame, and the output end of the servo motor is fixedly connected to the counter-rotating threaded rod, with threaded connectors threaded to both ends of the counter-rotating threaded rod.
[0009] Preferably, the adjustment assembly further includes a guide block and a guide groove, the guide groove being formed inside the gantry, and the guide block being slidably connected to the inner side of the guide groove, and the guide block being connected to the outer threaded connector.
[0010] Preferably, the adjustment assembly further includes a connecting rod, an adjustment plate, and a limiting plate. The adjustment plate is connected to a threaded connector via the connecting rod, and a limiting plate is provided on the outer side of the adjustment plate.
[0011] Preferably, the limiting plate is equipped with guide wheels at equal intervals on its outer side.
[0012] Preferably, the buffer assembly includes a sliding rod and a buffer spring. The sliding rod is slidably connected to the inner side of the adjusting plate, and the tail end of the sliding rod is connected to the limiting plate. A buffer spring is connected between the end of the sliding rod and the adjusting plate.
[0013] Compared with the prior art, the beneficial effect of this utility model is that the positioning and correction device of the steel pipe cutting machine is equipped with:
[0014] 1. Automatic positioning and correction structure: In this structure, steel pipe workpieces are conveyed to the cutting and processing table through the conveying assembly. During the conveying process, the laser displacement sensor monitors the conveying trajectory of the workpiece. If the workpiece's movement trajectory is found to be deviated, the laser displacement sensor will transmit the information to the control module, and the control module will control the servo motor to run.
[0015] Furthermore, after the servo motor runs, it will drive the anti-directional threaded rod to rotate. The rotation of the anti-directional threaded rod will drive the two sets of threaded connectors on the outer thread to move towards each other, thereby driving the two sets of limit plates at the bottom of the connecting rod to move towards each other, so that the correction wheel can correct the workpiece being transported, and avoid the workpiece from being misaligned during transport, which would result in the workpiece entering the cutting position inaccurately.
[0016] 2. Buffer structure: When the limiting plate of this structure drives the correction wheel to move towards the workpiece, when the steel pipe comes into contact with the correction wheel due to deviation, an instantaneous impact force will be generated (especially during high-speed conveying). The buffer spring can absorb the kinetic energy, thereby avoiding rigid collision that could cause scratches on the bearing, bracket or workpiece surface of the correction wheel. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0018] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;
[0019] Figure 3 This is a three-dimensional structural diagram of the adjustment component of this utility model;
[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0021] Figure 5 This is a three-dimensional structural diagram of the buffer component of this utility model.
[0022] In the diagram: 1. Base; 2. Support leg; 3. Conveying assembly; 4. Workpiece; 5. Correcting wheel; 6. Adjusting assembly; 601. Gantry frame; 602. Battery; 603. Control module; 604. Servo motor; 605. Anti-threaded rod; 606. Threaded connector; 607. Guide block; 608. Guide groove; 609. Connecting rod; 610. Adjusting plate; 611. Limiting plate; 612. Laser displacement sensor; 7. Buffer assembly; 701. Sliding rod; 702. Buffer spring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-5 This utility model provides a technical solution: a positioning and correction device for a steel pipe cutting machine, comprising:
[0025] Example 1: As Figures 1-4 The present invention provides a positioning and correction device for a steel pipe cutting machine, comprising: a base 1 with a support leg 2 fixedly installed at its lower end; a conveying assembly 3 installed on the upper end of the base 1; a workpiece 4 disposed on the upper end of the conveying assembly 3; correction wheels 5 disposed on the left and right sides of the workpiece 4; an adjusting assembly 6 disposed on the upper end of the base 1 and connected to the correction wheels 5; and a buffer assembly 7 disposed outside the adjusting assembly 6. The adjusting assembly 6 is used to adjust the position of the correction wheels 5 on the left and right sides; the buffer assembly 7 is used to buffer the thrust generated by the contact between the workpiece 4 and the correction wheels 5.
[0026] The adjustment assembly 6 includes a gantry frame 601, a battery 602, a control module 603, and a laser displacement sensor 612. The gantry frame 601 is fixedly mounted on the upper end of the base 1, and the battery 602 is fixedly mounted on the outside of the gantry frame 601. The control module 603 and the laser displacement sensor 612 are also fixedly mounted on the outside of the gantry frame 601, and the battery 602 is electrically connected to the control module 603 and the laser displacement sensor 612. The adjustment assembly 6 also includes a servo motor 604, a threaded rod 605, and a threaded connector 606. The servo motor 604 is fixedly mounted on the outside of the gantry frame 601, and the servo motor 602 is also fixedly mounted on the outside of the gantry frame 601. 4. An anti-rotation threaded rod 605 is fixedly connected to the output end, and threaded connectors 606 are threadedly connected to both ends of the anti-rotation threaded rod 605; the adjustment assembly 6 also includes a guide block 607 and a guide groove 608. The guide groove 608 is opened inside the gantry frame 601, and the guide block 607 is slidably connected to the inner side of the guide groove 608. The guide block 607 is connected to the outer threaded connector 606; the adjustment assembly 6 also includes a connecting rod 609, an adjustment plate 610, and a limiting plate 611. The adjustment plate 610 is connected to the threaded connector 606 through the connecting rod 609, and a limiting plate 611 is provided on the outer side of the adjustment plate 610; and straightening wheels 5 are equidistantly installed on the outer side of the limiting plate 611.
[0027] The steel pipe workpiece 4 is conveyed to the cutting table via the conveying assembly 3. During the conveying process, the laser displacement sensor 612 monitors the conveying trajectory of the workpiece 4. If the movement trajectory of the workpiece 4 is found to be deviated, the laser displacement sensor 612 will transmit the information to the control module 603. The control module 603 controls the servo motor 604 to run. After the servo motor 604 runs, it will drive the anti-threaded rod 605 to rotate. The rotation of the anti-threaded rod 605 will drive the two sets of threaded connectors 606 with outer threaded connections to move towards each other, thereby driving the two sets of limit plates 611 at the bottom of the connecting rod 609 to move towards each other, so that the correction wheel 5 corrects the conveyed workpiece 4 and avoids the workpiece 4 from being deviated during the conveying process, which would cause the workpiece 4 to enter the cutting position inaccurately.
[0028] Example 2: Figures 1-2 , Figure 5 The present invention provides a technical solution: a positioning and correction device for a steel pipe cutting machine, which discloses that: the buffer assembly 7 includes a sliding rod 701 and a buffer spring 702, the sliding rod 701 is slidably connected to the inner side of the adjusting plate 610, and the tail end of the sliding rod 701 is connected to the limiting plate 611, and the buffer spring 702 is connected between the end of the sliding rod 701 and the adjusting plate 610.
[0029] When the limiting plate 611 of this structure drives the straightening wheel 5 to move towards the workpiece 4, when the steel pipe workpiece 4 comes into contact with the straightening wheel 5 due to offset, an instantaneous impact force will be generated (especially during high-speed conveying). The buffer spring 702 can absorb the kinetic energy, thereby avoiding rigid collision that could cause scratches on the bearing, bracket or surface of the workpiece 4 of the straightening wheel 5.
[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A positioning and correction device for a steel pipe cutting machine, characterized in that, include: The base (1) has a support leg (2) fixedly installed at its lower end. A conveying assembly (3) is mounted on the upper end of the base (1); Workpiece (4), which is disposed on the upper end of the conveying assembly (3); The correction wheel (5) is arranged on the left and right sides of the workpiece (4); Adjustment component (6), which is disposed on the upper end of the base (1) and is connected to the correction wheel (5); Buffer assembly (7), wherein the buffer assembly (7) is disposed outside the adjustment assembly (6); wherein, The adjustment component (6) is used to adjust the position of the left and right correction wheels (5); The buffer assembly (7) is used to buffer the thrust generated by the contact between the workpiece (4) and the straightening wheel (5).
2. The positioning and correction device for a steel pipe cutting machine according to claim 1, characterized in that: The adjustment assembly (6) includes a gantry (601), a battery (602), a control module (603), and a laser displacement sensor (612). The gantry (601) is fixedly installed on the upper end of the base (1), and the battery (602) is fixedly installed on the outside of the gantry (601). The control module (603) is fixedly installed on the outside of the gantry (601), and the laser displacement sensor (612) is fixedly installed on the outside of the gantry (601). The battery (602) is electrically connected to the control module (603) and the laser displacement sensor (612).
3. The positioning and correction device for a steel pipe cutting machine according to claim 2, characterized in that: The adjustment assembly (6) also includes a servo motor (604), a reverse threaded rod (605), and a threaded connector (606). The servo motor (604) is fixedly installed on the outside of the gantry (601), and the output end of the servo motor (604) is fixedly connected to the reverse threaded rod (605), and the two ends of the reverse threaded rod (605) are threadedly connected to the threaded connector (606).
4. The positioning and correction device for a steel pipe cutting machine according to claim 3, characterized in that: The adjustment assembly (6) further includes a guide block (607) and a guide groove (608). The guide groove (608) is opened inside the gantry (601), and the guide block (607) is slidably connected to the inside of the guide groove (608). The guide block (607) is connected to the outer threaded connector (606).
5. The positioning and correction device for a steel pipe cutting machine according to claim 4, characterized in that: The adjustment assembly (6) further includes a connecting rod (609), an adjustment plate (610), and a limiting plate (611). The adjustment plate (610) is connected to the threaded connector (606) via the connecting rod (609), and a limiting plate (611) is provided on the outside of the adjustment plate (610).
6. The positioning and correction device for a steel pipe cutting machine according to claim 5, characterized in that: Correction wheels (5) are installed at equal intervals on the outer side of the limiting plate (611).
7. The positioning and correction device for a steel pipe cutting machine according to claim 1, characterized in that: The buffer assembly (7) includes a sliding rod (701) and a buffer spring (702). The sliding rod (701) is slidably connected to the inner side of the adjusting plate (610), and the tail end of the sliding rod (701) is connected to the limiting plate (611). The buffer spring (702) is connected between the end of the sliding rod (701) and the adjusting plate (610).