Full-automatic intersecting line cutting device for pipe fittings

Abstract

The utility model relates to the field of pipe fitting machining, in particular to a full-automatic intersecting line cutting device for pipe fittings, and aims to solve the technical problem that automation is not thorough due to the fact that manual carrying is still needed in the feeding and discharging links of the pipe fittings in the prior art. The conveying mechanism comprises a plurality of conveying frames arranged in the feeding and discharging direction of the pipe fittings, each conveying frame is provided with a conveying chain, and a plurality of positioning supporting plates matched with the peripheral faces of the pipe fittings are evenly arranged on the conveying chains. Driving assemblies used for driving the conveying chains are arranged on the conveying frame, and the driving assemblies act together. By integrating the conveying mechanism, the positioning mechanism, the transferring mechanism and the cutting mechanism, the full-process automation of the pipe fitting from feeding, positioning, cutting to discharging is realized, the manual intervention is greatly reduced, and the production efficiency and the product quality are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of pipe fitting processing, in particular to a full-automatic intersecting line cutting device for pipe fittings. Background Art

[0002] In the construction of pipeline systems in industries such as construction, chemical engineering, and shipbuilding today, precise intersecting welding between pipe fittings is a key link to ensure the stable and sealed connection structure of pipelines. The traditional intersecting line cutting process for pipe fittings highly relies on manual operations, involving template making, complex marking and positioning, manual lofting, fine manual cutting, and subsequent cumbersome grinding processes. This series of processes not only consume time and effort but also are difficult to ensure the cutting accuracy and consistency, greatly restricting the production efficiency and product quality.

[0003] With the rapid development of industrial automation technology, numerically controlled intersecting line cutting devices have emerged as powerful tools to improve the processing efficiency and accuracy of pipe fittings. Such devices can integrate advanced numerical control technology and precision mechanical systems, receive key parameters such as the size of pipe fittings and the intersecting angle, automatically calculate and generate the optimal cutting path, and achieve precise cutting of intersecting lines, holes, and welding grooves, significantly improving the processing accuracy and efficiency.

[0004] However, although the numerically controlled intersecting line cutting device has achieved a high degree of automation in the cutting link, in the feeding and discharging links of pipe fittings, it generally relies on the assistance of cranes or lifting equipment for manual handling. This bottleneck problem severely restricts the smooth operation of the overall automated process, making it difficult for the current cutting device to fully integrate into and adapt to the full-automatic production line of pipe fittings. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a full-automatic intersecting line cutting device for pipe fittings that integrates automatic feeding, precise cutting, and automatic discharging, and can adapt to the full-automatic production line of pipe fittings in view of the deficiencies of the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A full-automatic intersecting line cutting device for pipe fittings, including a cutting mechanism for cutting pipe fittings, is characterized in that:

[0008] A conveying mechanism is arranged on the feeding side of the cutting mechanism, and a discharging mechanism is arranged on the discharging side of the cutting mechanism. The conveying mechanism includes a conveying frame arranged along the feeding and discharging direction of the pipe fittings. A plurality of the conveying frames are arranged side by side. Each conveying frame is provided with a conveyor chain. A plurality of positioning pallets that cooperate with the outer peripheral surface of the pipe fittings are evenly arranged on the conveyor chain. A driving component for driving the conveyor chain is arranged on the conveying frame, and the driving components act together;

[0009] A positioning mechanism is provided below the cutting mechanism. The positioning mechanism is used to clamp and position the pipe fitting and drive it to rotate in cooperation with the cutting mechanism during cutting.

[0010] The positioning mechanism includes a supporting platform for supporting the pipe fitting from the bottom, a rotary chuck for clamping the pipe fitting from the end, and a displacement device for driving the rotary chuck to approach or move away from the pipe fitting. The supporting platform includes a number of lifting brackets arranged side by side. The displacement device is slidably arranged on one side of the supporting platform. The rotary chuck is rotatably installed on the side of the displacement device facing the supporting platform and can follow the displacement device to slide and adjust the position perpendicular to the feeding and discharging direction of the pipe fitting.

[0011] A transfer mechanism is provided between the conveying mechanism and the discharging mechanism. The transfer mechanism is used to transfer the pipe fitting between the conveying mechanism, the discharging mechanism and the positioning mechanism.

[0012] The technical problem to be solved by the present utility model can be further realized by the following steps. The displacement device is a servo displacement machine, including a chuck moving rail arranged perpendicular to the feeding and discharging direction, and a displacement machine body slidably installed on the chuck moving rail. The rotary chuck is fixedly connected to the rotary end of the displacement machine body as a whole.

[0013] The technical problem to be solved by the present utility model can be further realized by the following steps. The lifting bracket includes a fixed base. Above the base is provided a horizontal mounting plate. On both sides of the mounting plate, upwardly extending roller clamping plates are provided. Between the two roller clamping plates, two rollers are rotatably arranged side by side. The base and the mounting plate are connected and driven by a number of vertically arranged servo cylinders. The lowest position of the rollers is always higher than the highest position of the positioning support plate on the conveying rack.

[0014] The technical problem to be solved by the present utility model can be further realized by the following steps. The transfer mechanism includes pipe fitting moving rails arranged along the feeding and discharging direction of the pipe fitting. A number of pipe fitting moving rails are arranged side by side. On each pipe fitting moving rail, a moving bracket is slidably arranged. Above each moving bracket, a positioning support block matching the outer peripheral surface of the pipe fitting is provided. The moving bracket and the positioning support block are connected and driven by a vertically arranged lifting device. The conveying rack and the lifting bracket are always located between the lowest position and the highest position of the positioning support block.

[0015] The technical problem to be solved by the present utility model can be further realized by the following steps. The upper surfaces of the positioning support plate and the positioning support block are both V-shaped with the opening facing upward. The lifting device is a driving cylinder or a driving oil cylinder.

[0016] The technical problem to be solved by the present utility model can also be further realized through the following steps. The cutting mechanism is a three-coordinate gantry type intersecting line cutting system, including a gantry installed on one side before and after the supporting platform, a cross rail installed on the top of the gantry, a movable carrier slidably installed on the cross rail, a lifting arm slidably arranged on one side of the movable carrier, a front and rear swing arm swingably installed at the bottom of the lifting arm, and a cutting head rotatably installed at the swing end of the front and rear swing arm.

[0017] The technical problem to be solved by the present utility model can also be further realized through the following steps. The driving assembly includes transmission sprockets installed at both ends of the conveying frame and connected to the transmission chain. One of the transmission sprockets is set as a driving wheel connected to the power source, and the transmission chain is a V-shaped plate chain.

[0018] The technical problem to be solved by the present utility model can also be further realized through the following steps. It includes a control cabinet, and the control cabinet is respectively communicatively connected to the cutting mechanism, the conveying mechanism, the positioning mechanism, and the transfer mechanism.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: By integrating the conveying mechanism, the positioning mechanism, the transfer mechanism, and the cutting mechanism, the whole process automation of the pipe fitting from feeding, positioning, cutting to discharging is realized, greatly reducing manual intervention and significantly improving production efficiency and product quality; The moving mechanism effectively connects the conveying mechanism, the discharging mechanism, and the positioning mechanism, not only realizing efficient material transfer, but also when the pipe fitting does not require intersecting line cutting, the cutting step can be directly skipped, thus being more suitable for the fully automatic production line of pipe fittings; Compared with other technical solutions where the conveying direction of the pipe fitting coincides with its axial direction, the present utility model makes the conveying direction of the pipe fitting always perpendicular to its axial direction, being more suitable for the front and rear processes of automatic production and realizing the optimization of the overall production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present utility model;

[0021] Figure 2 is a structural schematic diagram of the present utility model from another angle;

[0022] Figure 3 is a structural schematic diagram of the positioning mechanism of the present utility model;

[0023] Figure 4 is a structural schematic diagram of the transfer mechanism of the present utility model;

[0024] In the figure: 1 - discharging mechanism; 2 - lifting bracket; 3 - pipe fitting; 4 - transfer mechanism; 5 - cutting head; 6 - conveying mechanism; 7 - three - coordinate gantry type intersecting line cutting system; 8 - servo positioner; 9 - chuck moving rail; 10 - control cabinet; 11 - positioning support block; 12 - lifting device (driving cylinder); 13 - moving bracket; 14 - pipe fitting moving rail; 15 - roller; 16 - roller clamping plate; 17 - servo cylinder; 18 - base; 19 - rotary chuck; 20 - positioning support plate; 21 - gantry; 22 - cross rail; 23 - movable stage; 24 - lifting arm; 25 - front - and - rear swing arm. Specific implementation mode

[0025] The following further describes the specific technical solutions of the present invention so that those skilled in the art can further understand the present invention without constituting a limitation to its rights.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0027] Please refer to Figures 1-4 , a fully automatic intersecting line cutting device for pipe fittings, including a cutting mechanism for cutting pipe fittings.

[0028] On the feeding side of the cutting mechanism, there is a conveying mechanism 6, and on the discharging side of the cutting mechanism, there is a discharging mechanism 1. The conveying mechanism 6 includes conveying frames arranged along the feeding and discharging direction of the pipe fittings. A plurality of conveying frames are arranged side by side, and each conveying frame is provided with a conveyor chain. A plurality of positioning support plates that cooperate with the outer peripheral surface of the pipe fittings are evenly arranged on the conveyor chain. A driving component for driving the conveyor chain is provided on the conveying frame. The driving components act together to make the axis of the pipe fitting perpendicular to the feeding and discharging direction, so as to better adapt to the front and back processes of automated production. The structure of the discharging mechanism 1 is the same as that of the conveying mechanism 6.

[0029] Below the cutting mechanism, there is a positioning mechanism, which is used to clamp and position the pipe fitting and drive it to rotate in cooperation with the cutting mechanism during cutting.

[0030] The positioning mechanism includes a supporting platform for supporting the pipe fitting from the bottom, a rotary chuck 19 for clamping the pipe fitting from the end, and a displacement device for driving the rotary chuck to approach or move away from the pipe fitting. The supporting platform includes a plurality of lifting brackets 2 arranged side by side. The displacement device is slidably arranged on one side of the supporting platform. The rotary chuck 19 is rotatably installed on the side of the displacement device facing the supporting platform and can follow the displacement device to slide and adjust the position perpendicular to the feeding and discharging direction of the pipe fitting to adapt to pipe fittings of different lengths.

[0031] A transfer mechanism is provided between the conveying mechanism 6 and the discharging mechanism 1. The transfer mechanism is used for transferring the pipe fitting between the conveying mechanism 6, the discharging mechanism 1 and the positioning mechanism.

[0032] The transfer mechanism 4 can transport the pipe fitting 3 to be cut from the conveying mechanism 6 to the lifting bracket 2 of the positioning mechanism, and then transport the cut pipe fitting 3 from the lifting bracket 2 to the discharging mechanism 1. At the same time, it can also directly transport the pipe fitting 3 that does not need to be cut from the conveying mechanism 6 to the discharging mechanism 1.

[0033] The displacement device is a servo displacement machine 8, which includes a chuck moving rail 9 arranged perpendicular to the feeding and discharging direction, and a displacement machine body slidably installed on the chuck moving rail 9. The rotary chuck 19 is fixedly connected to the rotary end of the displacement machine body as a whole.

[0034] The lifting bracket 2 includes a base 18 fixedly installed on the working plane. Above the base 18, there is a horizontal mounting plate. On both sides of the mounting plate, there are upwardly extending roller clamping plates 16. Between the two roller clamping plates 16, two rollers 15 are rotatably arranged in parallel. The area between the two rollers 15 is set as a supporting position for placing the pipe fitting 3. The base 18 and the mounting plate are connected and driven by a plurality of vertically arranged servo cylinders 17. The lowest position of the rollers 15 is always higher than the highest position of the positioning support plate 20 on the conveying rack to prevent the pipe fitting 3 from interfering with the positioning support plate 20 during cutting. When the pipe fitting 3 is placed in the supporting position, its axis and the axis of the rotary chuck 19 are always in the same vertical plane. The lifting function of the lifting bracket 2 is to adjust it to coincide with the axis of the rotary chuck 19 when the diameter of the pipe fitting 3 is different, resulting in the axis being relatively higher or lower than the rotary chuck 19, to ensure stable clamping.

[0035] The transfer mechanism 4 includes a pipe moving rail 14 arranged along the pipe feeding and discharging direction. A number of pipe moving rails 14 are arranged side by side left and right. A moving bracket 13 is slidably arranged on each pipe moving rail 14. The moving bracket 13 and the pipe moving rail 14 can be connected and driven by any linear motion mechanism (such as a ball screw driven by a motor, a rack and pinion, etc.). Above each moving bracket 13, there is a positioning support block 11 that fits the outer peripheral surface of the pipe 3. The upper surface of the positioning support block 11 is a V-shaped opening upwards. The moving bracket 13 and the positioning support block 11 are connected and driven by a vertically arranged lifting device 12. The lifting device 12 is a driving cylinder or a driving oil cylinder. The conveying frame and the lifting bracket 2 are always located between the lowest position and the highest position of the positioning support block 11. That is, the positioning support block 11 can always lift the pipe 3 on the conveying frame from below and can also place the pipe 3 on the lifting bracket 2 from above.

[0036] The cutting mechanism is a three-coordinate gantry type intersecting line cutting system 7, including a gantry 21 fixedly installed on the working plane and located on one side before and after the supporting platform, a cross rail 22 fixedly installed on the top of the gantry 21, a movable stage 23 slidably installed on the cross rail 22, a lifting arm 24 slidably arranged up and down on one side of the movable stage 23, a front and rear swing arm 25 swingably installed at the bottom of the lifting arm 24, and a cutting head 5 rotatably installed at the swinging end of the front and rear swing arm 25. The three-coordinate gantry type intersecting line cutting system 7 can be linked and controlled with the servo positioner 8 to realize the full-automatic intersecting line cutting on the surface of the pipe 3.

[0037] The driving assembly includes transmission sprockets installed at both ends of the conveying frame and connected to the transmission chain. One of the transmission sprockets is set as a driving wheel connected to the power source. The power source can be a servo motor. The transmission chain is a V-shaped plate chain.

[0038] The utility model further includes a control cabinet 10. The control cabinet 10 is respectively communicatively connected with the cutting mechanism, the conveying mechanism 6, the positioning mechanism, and the transfer mechanism 4 to realize the centralized control and management of each working mechanism.

[0039] Working principle: For a full-automatic intersecting line cutting device for pipes of the utility model, its operation process is as follows:

[0040] (1) Automatic feeding: When the system receives a feeding instruction, the moving bracket 13 of the transfer mechanism 4 quickly and smoothly moves along the pipe moving rail 14 to one end close to the conveying mechanism 6. At this time, the driving cylinder contracts downward, driving the positioning support block 11 to descend to a height lower than that of the conveying frame. Subsequently, the transmission chain on the conveying frame automatically operates under the drive of the driving assembly, and the pipe 3 to be cut is smoothly turned over onto the positioning support block 11. Then, the driving cylinder rises to lift the pipe 3, preparing to transfer it to the cutting area.

[0041] (2) Positioning and clamping: The moving bracket 13 carries the pipe fitting 3 and continues to move forward until it reaches above the lifting bracket 2. The driving cylinder contracts, driving the positioning block 11 to descend, and placing the pipe fitting 3 between the two rollers 15 of the lifting bracket 2. If necessary, the servo cylinder 17 of the lifting bracket 2 makes fine adjustments according to the diameter and axial position of the pipe fitting 3 to ensure that the axis of the pipe fitting 3 and the axis of the rotary chuck 19 are in the same vertical plane. Then, the servo positioner 8 slides along the chuck moving rail 9 to the end of the pipe fitting 3, and operates the rotary chuck 19 to clamp the pipe fitting 3, preparing for the intersecting line cutting.

[0042] (3) Intersecting line cutting: The servo positioner 8 and the three-coordinate gantry intersecting line cutting system 7 enter into linkage. The movable stage 23, lifting arm 24, front and rear swing arms 25 and cutting head 5 of the cutting system work together to perform precise full-automatic intersecting line cutting on the pipe fitting 3 according to the preset cutting trajectory. During the entire cutting process, the pipe fitting 3 rotates under the drive of the rotary chuck 19 to adapt to the movement trajectory of the cutting head 5.

[0043] (4) Automatic discharging: After the cutting is completed, the servo positioner 8 releases the rotary chuck 19, and the transfer mechanism 4 starts again. It lifts the cut pipe fitting 3 from the lifting bracket 2 and transports it along the pipe fitting moving rail 14 to the discharging mechanism 1. The discharging mechanism 1 operates to smoothly send out the pipe fitting 3, completing the entire cutting process. If the present utility model is used in a full-automatic production line and the current pipe fitting 3 does not require intersecting line cutting, then the transfer mechanism 4 will directly receive the pipe fitting 3 from the conveying mechanism 6 and transport it to the discharging mechanism 1 to achieve the function of skipping the cutting.

[0044] Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

Claims

1. A fully automatic pipe fitting intersecting line cutting device, comprising a cutting mechanism for cutting pipe fittings, characterized in that: A conveying mechanism is arranged on the feeding side of the cutting mechanism, and a discharging mechanism is arranged on the discharging side of the cutting mechanism. The conveying mechanism includes a conveying frame arranged along the feeding and discharging direction of the pipe fitting. A plurality of the conveying frames are arranged side by side. Each conveying frame is provided with a transmission chain, and a plurality of positioning pallets matched with the outer peripheral surface of the pipe fitting are evenly arranged on the transmission chain. A driving component for driving the transmission chain is arranged on the conveying frame, and the driving components act together; A positioning mechanism is arranged below the cutting mechanism. The positioning mechanism is used for clamping and positioning the pipe fitting and driving it to rotate in cooperation with the cutting mechanism during cutting. The positioning mechanism includes a supporting platform for supporting the pipe fitting from the bottom, a rotary chuck for clamping the pipe fitting from the end, and a displacement device for driving the rotary chuck to approach or move away from the pipe fitting. The supporting platform includes a plurality of lifting brackets arranged side by side. The displacement device is slidably arranged on one side of the supporting platform. The rotary chuck is rotatably installed on the side of the displacement device facing the supporting platform and can follow the displacement device to slide and adjust the position along the direction perpendicular to the feeding and discharging direction of the pipe fitting; A transfer mechanism is arranged between the conveying mechanism and the discharging mechanism. The transfer mechanism is used for transferring and conveying the pipe fitting among the conveying mechanism, the discharging mechanism and the positioning mechanism.

2. The fully automatic pipe fitting intersection line cutting device according to claim 1, characterized in that: The displacement device is a servo displacement machine, including a chuck moving rail arranged perpendicular to the feeding and discharging direction, and a displacement machine body slidably installed on the chuck moving rail. The rotary chuck is fixedly connected to the rotary end of the displacement machine body as a whole.

3. The fully automatic intersecting line cutting device for pipe fittings according to claim 1, characterized in that: The lifting bracket includes a fixed base. A horizontal mounting plate is arranged above the base. Roller clamping plates extend upward on both sides of the mounting plate. Two rollers are rotatably arranged side by side between the two roller clamping plates. The base and the mounting plate are connected and driven by a plurality of vertically arranged servo cylinders. The lowest position of the roller is always higher than the highest position of the positioning pallet on the conveying frame.

4. The full-automatic intersecting line cutting device for pipe fittings according to claim 1, wherein: The transfer mechanism includes a pipe fitting moving rail arranged along the feeding and discharging direction of the pipe fitting. A plurality of the pipe fitting moving rails are arranged side by side. A moving bracket is slidably arranged on each pipe fitting moving rail. A positioning block matched with the outer peripheral surface of the pipe fitting is arranged above each moving bracket. The moving bracket and the positioning block are connected and driven by a lifting device arranged vertically. The conveying frame and the lifting bracket are always located between the lowest position and the highest position of the positioning block.

5. The fully automatic intersecting line cutting device for pipe fittings according to claim 4, wherein: The upper surfaces of the positioning pallet and the positioning block are both V-shaped with the opening upward. The lifting device is a driving cylinder or a driving oil cylinder.

6. The fully automatic pipe fitting intersecting line cutting device according to claim 1, characterized in that: The cutting mechanism is a three-coordinate gantry type intersecting line cutting system, including a gantry installed on one side before and after the supporting platform, a cross rail installed on the top of the gantry, a movable platform slidably installed on the cross rail, a lifting arm slidably arranged on one side of the movable platform, a front and rear swing arm swingably installed at the bottom of the lifting arm, and a cutting head rotatably installed at the swing end of the front and rear swing arm.

7. The fully automatic pipe fitting intersecting line cutting device according to claim 1, characterized in that: The driving component includes transmission sprockets installed at both ends of the conveying frame and connected to the transmission chain. One of the transmission sprockets is set as a driving wheel connected to a power source. The transmission chain is a V-shaped plate chain.

8. The full-automatic intersecting line cutting device for pipe fittings according to any one of claims 1-7, characterized in that: It includes a control cabinet, and the control cabinet is respectively communicatively connected with a cutting mechanism, a conveying mechanism, a positioning mechanism and a transfer mechanism.

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