Automatic high-precision positioning pipe cutting machine

Abstract

The invention discloses an automatic high-precision positioning pipe cutting machine and belongs to the technical field of cutting machines, the automatic high-precision positioning pipe cutting machine comprises a machine tool table and a working chamber, a discharging cavity is formed in the machine tool table, a discharging cavity is formed in the top of the machine tool table, and a reciprocating cutting assembly is connected to the top of the machine tool table; a positioning assembly is connected to the top of the machine tool table and comprises a supporting frame, a pressing block, a plurality of sets of driving wheels and a conveying strip. Through the close fit of the conveying strip and the driving wheel, the stable movement of the pipeline in the detection process is ensured, the automatic rotation of the pipeline is realized, and great convenience is provided for all-directional welding seam detection. The stability and safety of the pipeline in the pushing, rotating and detecting processes are guaranteed, sliding and deviation of the pipeline are prevented, and therefore the grinding and detecting accuracy and efficiency are guaranteed. By means of the design, the stability and reliability of the production process are improved, and the cost for maintaining and replacing equipment is saved for enterprises.

Description

Technical Field

[0001] The invention relates to the technical field of cutting machines, and in particular to an automatic high-precision positioning pipe cutting machine. Background Art

[0002] In the field of steel pipe processing, seamed steel pipes have a wide range of applications due to their relatively simplified production process and economical cost advantages, including but not limited to water supply systems, gas transportation, compressed air pipelines, and even the manufacturing of filling pipes in filling machinery. In the processing of steel pipes, it is often necessary to cut the steel pipes.

[0003] Although there are many cutting devices on the market, such as the high-efficiency steel pipe cutting device for construction disclosed in Chinese invention patent CN112059656B, this device uses an innovative clamping mechanism to firmly clamp the inner wall of the steel pipe, combined with precise cutting technology and a flexible mobile system, which significantly improves the efficiency and safety of the cutting operation.

[0004] Nevertheless, when faced with the need to process the same specifications of seamless steel pipes in batches, the existing technology still faces a key challenge: how to ensure that the cut positions of multiple steel pipes are highly consistent, which directly depends on the precise alignment of the weld positions of the steel pipes. Since the weld positions of seamless steel pipes may be randomly distributed above or below the pipe body during production or transportation, there is a lack of unified positioning standards, which makes it difficult to automatically and efficiently calibrate and align the welds in batch cutting operations. Traditional methods often rely on manual identification and adjustment, which is not only inefficient, but also difficult to ensure the cut accuracy of each steel pipe, which in turn affects the subsequent processing quality and the reliability of the overall project.

[0005] Based on this, the present invention designs an automatic high-precision positioning pipe cutting machine to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an automatic high-precision positioning pipe cutting machine.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An automatic high-precision positioning pipe cutting machine comprises a machine table and a working room; a material discharging cavity is provided inside the machine table, a material unloading cavity is provided on the top of the machine table, and a reciprocating cutting assembly is connected to the top of the machine table;

[0009] The top of the machine table is connected with a positioning assembly, which includes a support frame, a clamping block, multiple sets of driving wheels and a conveying bar. The top of the machine table is fixedly connected with the support frame, the lifting assembly is connected to the lower end of the support frame, the clamping block is connected to the support frame through the lifting assembly, the multiple sets of driving wheels are connected through the conveying bar, and the support frame is rotatably connected with multiple sets of clamping shafts for limiting the conveying bar.

[0010] A plurality of supporting seats are fixedly connected to the top of the machine tool table, a plurality of guiding parts are rotatably connected between the plurality of supporting seats, and a plurality of ultrasonic monitors are fixedly connected to the bottom of the pressing block.

[0011] Furthermore, the cutting assembly includes a support block, a driving motor, a threaded rod, a moving block, a cutting motor, and a cutting blade. The top of the machine tool table is fixedly connected to the support block, the upper end of the support block is fixedly connected to the driving motor, the output end of the driving motor is fixedly connected to the threaded rod, the threaded rod is rotatably connected to the support block, the moving block is threadedly connected to the threaded rod, the upper end of the moving block is fixedly connected to the cutting motor, and the output end of the cutting motor is fixedly connected to the cutting blade.

[0012] Furthermore, the lifting assembly includes a cylinder and a push rod, the front end of the support frame is fixedly connected to the cylinder, the output end of the cylinder is fixedly connected to the push rod, and the lower end of the push rod is fixedly connected to the clamping block.

[0013] Furthermore, the material unloading cavity is a hollow hopper-shaped structure, and multiple groups of propulsion grooves are respectively opened on both sides of the material unloading cavity. A second cylinder is fixedly connected to the top of the machine tool table, and a propulsion block adapted to the multiple groups of propulsion grooves is fixedly connected to the output end of the second cylinder.

[0014] Furthermore, a plurality of triangular pyramid-shaped partitions are fixedly connected to the interior of the material discharge cavity, and the number of the plurality of partitions matches the number of the plurality of groups of propulsion grooves.

[0015] Furthermore, the lower end of the pressing block is in a "V"-shaped concave structure adapted to the steel pipe.

[0016] Furthermore, the lower end of the pressing block abuts against the tops of the plurality of groups of support seats.

[0017] Furthermore, a plurality of groups of the clamping shafts are rotatably connected to the side surfaces of the support base symmetrically arranged along the center point of the support frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention not only ensures the smooth movement of the pipeline during the detection process by setting a close fit between the conveying bar and the driving wheel, but also realizes the automatic rotation of the pipeline, which provides great convenience for all-round weld detection. This innovative design not only improves the automation level and operating efficiency of the entire processing flow, but also saves a lot of manpower and material costs for the enterprise, promotes the intelligent and automated development of the industry, and the ingenious design of the clamping shaft plays a vital role in the pipeline processing process. They firmly clamp the pipeline, ensure the stability and safety of the pipeline during pushing, rotation and detection, prevent the pipeline from sliding and deflecting, thereby ensuring the accuracy and efficiency of grinding and detection. This design not only improves the stability and reliability of the production process, but also saves the cost of repairing and replacing equipment for the enterprise.

[0019] 2. The present invention is a major breakthrough in the problem of random distribution of weld positions of seamed steel pipes by setting up the precise cutting function of the cutting assembly. Through precise control and efficient execution, the cutting assembly can achieve precise cutting of the weld position, making batch cutting operations more efficient and accurate, significantly improving the quality of steel pipe cutting and subsequent processing efficiency, laying a solid foundation for the reliability and stability of the project, and also bringing greater market competitive advantages to the enterprise.

[0020] 3. The present invention provides a powerful technical support for the weld detection function of the present invention by setting up an ultrasonic monitor. Through the propagation characteristics of ultrasonic waves in weld materials, the ultrasonic monitor can accurately and quickly identify various defects in the weld, such as cracks, pores, and lack of fusion, providing a scientific basis for strict control of weld quality, greatly reducing the cost and error rate of manual detection, and improving product quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A three-dimensional diagram of an automatic high-precision positioning pipe cutting machine of the present invention;

[0023] Figure 2 It is a front view of an automatic high-precision positioning pipe cutting machine of the present invention;

[0024] Figure 3 The structure of the present invention is schematically shown Figure 1 ;

[0025] Figure 4 The structure of the present invention is schematically shown Figure 2 ;

[0026] Figure 5 It is a schematic diagram of the partial structure of the present invention Figure 1 ;

[0027] Figure 6 for Figure 4 The enlarged view of point A in the middle;

[0028] Figure 7 The structure of the present invention is schematically shown Figure 3 ;

[0029] Figure 8 The structure of the present invention is schematically shown Figure 4 ;

[0030] Fig. 9 for Figure 8 The enlarged view of point B in the middle;

[0031] Fig.10 It is a schematic diagram of the partial structure of the present invention Figure 2 ;

[0032] Fig.11 for Figure 3 Enlarged view of point C in the middle.

[0033] The numbers in the figure represent:

[0034] 1. Machine tool table; 2. Workroom; 3. Unloading cavity; 31. Partition; 32. Second cylinder; 33. Pushing groove; 34. Pushing block; 4. Cutting assembly; 5. Unloading cavity; 6. Positioning assembly; 61. Support frame; 62. Pressing block; 63. Driving wheel; 64. Conveying bar; 65. Support seat; 66. Guide; 67. Driving member; 68. Lifting assembly; 681. Cylinder; 682. Pushing block; 69. Ultrasonic monitor; 631. Clamping shaft; 11. Support block; 12. Driving motor; 14. Threaded rod; 13. Moving block; 15. Cutting motor; 16. Cutting blade. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0036] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0037] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 10 An automatic high-precision positioning pipe cutting machine includes a machine table 1 and a studio 2. A material discharging cavity 5 is provided inside the machine table 1, a material unloading cavity 3 is provided on the top of the machine table 1, and a reciprocating cutting assembly 4 is connected to the top of the machine table 1;

[0038] The top of the machine tool table 1 is connected with a positioning assembly 6, which includes a support frame 61, a clamping block 62, multiple sets of driving wheels 63 and a conveying bar 64. The top of the machine tool table 1 is fixedly connected with the support frame 61, and a lifting assembly 68 is connected to the lower end of the support frame 61. The clamping block 62 is connected to the support frame 61 through the lifting assembly 68. Multiple sets of driving wheels 63 are connected by transmission through the conveying bar 64. Multiple sets of abutting shafts 631 for limiting the conveying bar 64 are rotatably connected to the support frame 61;

[0039] The top of the machine tool table 1 is fixedly connected to a plurality of support seats 65, and a plurality of guide portions 66 are rotatably connected between the plurality of support seats 65. The bottom of the pressing block 62 is fixedly connected to a plurality of ultrasonic monitors 69.

[0040] The lifting assembly 68 includes a cylinder 681 and a push rod 682. The front end of the support frame 61 is fixedly connected to the cylinder 681, the output end of the cylinder 681 is fixedly connected to the push rod 682, and the lower end of the push rod 682 is fixedly connected to the pressing block 62.

[0041] The material discharging cavity 3 is a hollow hopper-shaped structure, and a plurality of thrust grooves 33 are respectively provided on both sides of the material discharging cavity 3. A second cylinder 32 is fixedly connected to the top of the machine tool table 1, and a thrust block 34 adapted to the plurality of thrust grooves 33 is fixedly connected to the output end of the second cylinder 32.

[0042] A plurality of triangular pyramid-shaped partitions 31 are fixedly connected to the interior of the material discharge cavity 3, and the number of the plurality of partitions 31 matches the number of the plurality of groups of pushing grooves 33;

[0043] The lower end of the pressing block 62 is a "V"-shaped concave structure adapted to the steel pipe, and contacts the top of the plurality of groups of support seats 65;

[0044] A plurality of groups of the abutting shafts 631 are rotatably connected to the side surfaces of the support base 65 symmetrically arranged along the center point of the support frame 61, and the driving wheel 63 is driven by the driving member 67;

[0045] The staff first carefully placed the pipes to be polished through the entrance of the feeding cavity 3, and used the clever design of the partition 31 to achieve effective isolation and independent processing of multiple groups of pipes, laying a good foundation for the subsequent polishing process. Then, the second cylinder 32 was accurately activated, and its output end then moved smoothly and powerfully along the vector direction of the propulsion groove 33, and the pipe was steadily pushed to one side of the propulsion groove 33 through the propulsion block 34 firmly connected to the output end of the second cylinder 32. After completing this pushing action, the second cylinder 32 will perform a rapid retraction action. At this time, the pipe located at the partition 31 falls back to its original position under the action of gravity, waiting for the next position movement brought about by the second cylinder 32. This process ensures the efficiency and continuity of pipe polishing.

[0046] When the pipe is accurately pushed to the preset position of the guide part 66 by the second cylinder 32, the lifting assembly 68 located on one side of the support frame 61 begins to perform a precise descending action, driving the pressing block 62 to slowly approach the surface of the pipe until it fits tightly. At this time, the ultrasonic detector 69 located on one side of the pressing block 62 begins to play its key role and conducts meticulous detection of the weld of the pipe.

[0047] The working principle of the ultrasonic monitor 69 is based on the propagation characteristics of ultrasonic waves in the weld material. When the ultrasonic wave encounters defects such as cracks, pores, and unfused materials, reflection, refraction, and scattering phenomena will occur. These physical phenomena will significantly change the waveform, amplitude, and other parameters of the ultrasonic wave. The reflected ultrasonic wave is sensitively received by the probe and quickly converted into an electrical signal. Through subsequent analysis and processing, it can be accurately determined whether there are defects in the weld, as well as the specific location and size of the defects. In particular, if there are no defects in the weld, the ultrasonic wave will penetrate the material unimpeded, and the reflected wave will be relatively weak; once a defect is encountered, the ultrasonic wave will generate a strong reflected wave at the defect, providing a reliable basis for the evaluation of the weld quality. It is worth noting that this application only describes the working principle of the ultrasonic monitor, and its specific implementation method depends on the existing technology, so it is not within the scope of protection of this application.

[0048] After the pipeline completes the pushing action, its surface position is just above the conveying bar 64, and the two sides are firmly clamped by multiple sets of clamping shafts 631, ensuring the stability of the pipeline during the subsequent inspection process. When the ultrasonic monitor 69 conducts a detailed inspection of the pipeline weld, the driving member 67 starts to rotate, driving the driving wheel 63 and the conveying bar 64 connected thereto to rotate. As the conveying bar 64 moves slowly, the pipeline on it also rotates, allowing the ultrasonic monitor 69 to conduct a comprehensive inspection of the circumferential weld of the pipeline.

[0049] Once the ultrasonic monitor 69 detects the position of the weld, the cutting assembly 4 will respond quickly, and through the precise drive of the cylinder or reciprocating screw, it will perform linear motion and accurately cut the weld position. This innovative design effectively solves the problem of random distribution and difficulty in uniform positioning of welded steel pipes during production or transportation, greatly improves the efficiency and accuracy of batch cutting operations, provides high-quality steel pipe raw materials for subsequent processing, and thus enhances the reliability and stability of the overall project.

[0050] Embodiment 2: In some embodiments, Figure 3 As shown, as a preferred embodiment of the present invention, the cutting assembly 4 includes a support block 11, a driving motor 12, a threaded rod 14, a moving block 13, a cutting motor 15, and a cutting blade 16. The top of the machine tool table 1 is fixedly connected with the support block 11, the upper end of the support block 11 is fixedly connected with the driving motor 12, the output end of the driving motor 12 is fixedly connected with the threaded rod 14, the threaded rod 14 is rotatably connected to the support block 11, the threaded rod 14 is threadedly connected with the moving block 13, the upper end of the moving block 13 is fixedly connected with the cutting motor 15, and the output end of the cutting motor 15 is fixedly connected with the cutting blade 16; the driving motor 12 drives the threaded rod 14 to rotate, the threaded rod 14 drives the cutting motor 12 to move through the moving block 13, and the cutting motor 12 drives the cutting blade 15 to rotate at high speed, thereby realizing the cutting function.

[0051] Embodiment 3: In some embodiments, Figure 6 As shown, as a preferred embodiment of the present invention, the driving component includes a reduction motor, a synchronous belt and two sets of synchronous wheels. The inner top of the machine tool table 1 is fixedly connected with the reduction motor, the output end of the reduction motor is fixedly connected to one set of synchronous wheels, the two sets of synchronous wheels are connected by synchronous belt transmission, and the other set of synchronous wheels is fixedly connected to the driving wheel 63.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic high-precision positioning pipe cutting machine, comprising a machine table (1) and a working room (2), characterized in that: A material discharging cavity (5) is provided inside the machine tool table (1), a material unloading cavity (3) is provided on the top of the machine tool table (1), and a reciprocating cutting assembly (4) is connected to the top of the machine tool table (1); The top of the machine tool table (1) is connected with a positioning assembly (6), and the positioning assembly (6) comprises a support frame (61), a clamping block (62), a plurality of drive wheels (63) and a conveying strip (64); the top of the machine tool table (1) is fixedly connected with the support frame (61); a lifting assembly (68) is connected to the lower end of the support frame (61); the clamping block (62) is connected to the support frame (61) via the lifting assembly (68); the plurality of drive wheels (63) are transmission-connected via the conveying strip (64); and a plurality of clamping shafts (631) for limiting the position of the conveying strip (64) are rotatably connected to the support frame (61); The top of the machine tool table (1) is fixedly connected to a plurality of support seats (65), the plurality of guide portions (66) are rotatably connected between the plurality of support seats (65), and the bottom of the pressing block (62) is fixedly connected to a plurality of ultrasonic monitors (69).

2. The automatic high-precision positioning pipe cutting machine according to claim 1 is characterized in that: The cutting assembly (4) comprises a support block (11), a drive motor (12), a threaded rod (14), a moving block (13), a cutting motor (15), and a cutting blade (16); the top of the machine tool table (1) is fixedly connected to the support block (11); the upper end of the support block (11) is fixedly connected to the drive motor (12); the output end of the drive motor (12) is fixedly connected to the threaded rod (14); the threaded rod (14) is rotatably connected to the support block (11); the moving block (13) is threadedly connected to the threaded rod (14); the upper end of the moving block (13) is fixedly connected to the cutting motor (15); and the output end of the cutting motor (15) is fixedly connected to the cutting blade (16).

3. The automatic high-precision positioning pipe cutting machine according to claim 2 is characterized in that: The lifting assembly (68) comprises a cylinder (681) and a push rod (682); the front end of the support frame (61) is fixedly connected to the cylinder (681); the output end of the cylinder (681) is fixedly connected to the push rod (682); and the lower end of the push rod (682) is fixedly connected to the pressing block (62).

4. The automatic high-precision positioning pipe cutting machine according to claim 3 is characterized in that: The material discharging cavity (3) is a hollow hopper-shaped structure, and a plurality of groups of propulsion grooves (33) are respectively provided on both sides of the material discharging cavity (3). A second cylinder (32) is fixedly connected to the top of the machine tool table (1), and a propulsion block (34) adapted to the plurality of groups of propulsion grooves (33) is fixedly connected to the output end of the second cylinder (32).

5. The automatic high-precision positioning pipe cutting machine according to claim 4 is characterized in that: A plurality of triangular pyramid-shaped partitions (31) are fixedly connected to the interior of the material discharge cavity (3), and the number of the plurality of partitions (31) matches the number of the plurality of groups of the propulsion grooves (33).

6. The automatic high-precision positioning pipe cutting machine according to claim 5, characterized in that: The lower end of the pressing block (62) is in a "V"-shaped concave structure adapted to fit the steel pipe.

7. The automatic high-precision positioning pipe cutting machine according to claim 6, characterized in that: The lower end of the pressing block (62) abuts against the tops of the plurality of groups of support seats (65).

8. The automatic high-precision positioning pipe cutting machine according to claim 7, characterized in that: A plurality of groups of the clamping shafts (631) are rotatably connected to the side surfaces of a support seat (65) symmetrically arranged along the center point of the support frame (61).

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