Dual-chuck cutting apparatus and cutting method

Abstract

This invention provides a dual-chuck cutting device and method. The dual-chuck cutting device includes: a base structure, a first chuck structure, a second chuck structure, a centering clamping structure, and a cutting structure. The base structure has a length direction parallel to the horizontal plane and a height direction perpendicular to the horizontal plane. The first chuck structure and the second chuck structure are movably disposed on the base structure along the length direction, and the first chuck structure and the second chuck structure are spaced apart. The centering clamping structure is disposed on the base structure and is located between the first chuck structure and the second chuck structure. The first chuck structure, the second chuck structure, and the centering clamping structure jointly constrain the central axis of the tube to be processed to be parallel to the length direction. The cutting structure is disposed on the base structure. The technical solution provided by this invention can solve the problem of poor processing accuracy caused by low feeding accuracy in existing small-tube laser cutting equipment.

Description

Technical Field

[0001] This invention relates to the field of laser tube processing technology, and more specifically, to a dual-chuck cutting device and cutting method. Background Technology

[0002] Currently, in the field of laser cutting of small-diameter tubes, as industrial production demands increasingly stringent processing efficiency and finished product precision, balancing cutting speed and operational stability has become a major challenge. Especially when dealing with tubes with diameters up to 16mm or thin-walled tubes with wall thicknesses below 0.8mm, traditional processing methods often struggle to achieve both high precision and high yield. This frequently results in downtime due to the tube's inherent weakness, susceptibility to bending and deformation, or feeding failures, as well as large processing errors and workpiece scrap. Therefore, there is an urgent need for an automated cutting device that can improve the stability and efficiency of processing small and thin-walled tubes.

[0003] Existing small tube laser cutting equipment mainly uses single chuck equipment. Existing single chuck equipment uses a single chuck to hold the tube and relies on the pull claw centering structure to repeatedly feed the tube. Because the cutting area is large and only restricts the two sides of the tube, the feeding accuracy is poor due to the tube sagging or the accumulation of repeated positioning errors, which in turn reduces the cutting accuracy.

[0004] Therefore, existing small-tube laser cutting equipment suffers from poor processing accuracy due to low feeding precision, which urgently needs to be addressed. Summary of the Invention

[0005] This invention provides a dual-chuck cutting device and cutting method to at least solve the problem of poor processing accuracy caused by low feeding accuracy in existing small tube laser cutting equipment.

[0006] To address the aforementioned problems, according to one aspect of the present invention, a dual-chuck cutting device is provided, comprising: a base structure, a first chuck structure, a second chuck structure, a centering clamping structure, and a cutting structure; the base structure has a length direction parallel to a horizontal plane and a height direction perpendicular to a horizontal plane; the first chuck structure and the second chuck structure are respectively movably disposed on the base structure along the length direction, and the first chuck structure and the second chuck structure are spaced apart; the first chuck structure and the second chuck structure are respectively used to clamp the pipe to be processed, and the second chuck structure transports the pipe to be processed to the first chuck structure. A chuck structure; a centering clamping structure is set on the base structure and located between the first chuck structure and the second chuck structure. The centering clamping structure is used for centering, positioning, and clamping the pipe to be processed; wherein, the first chuck structure, the second chuck structure, and the centering clamping structure jointly constrain the central axis of the pipe to be processed to be parallel to the length direction; a cutting structure is set on the base structure. The cutting structure cuts the pipe to be processed fixed at the end of the first chuck structure away from the centering clamping structure, or the cutting structure cuts the pipe to be processed fixed at the end of the centering clamping structure away from the first chuck structure.

[0007] Furthermore, the two endpoints of the second chuck structure's movement range along the length direction on the base structure are the origin end and the end end, respectively; the origin end is far away from the centering clamping structure, and the end end is close to the centering clamping structure; the second chuck structure reciprocates between the origin end and the end end to transport the pipe to be processed to the centering clamping structure; wherein, the distance between the origin end and the end end along the length direction is greater than or equal to 900 mm and less than or equal to 1200 mm.

[0008] Furthermore, one end of the movement trajectory of the first chuck structure is located on one side of the cutting structure along the length direction, and the other end of the movement trajectory of the first chuck structure is located on the other side of the cutting structure along the length direction.

[0009] Furthermore, the dual-chuck cutting device also includes a feeding structure, which comprises a material rack, a fixed base, a baffle plate, a conveying assembly, a height limiting assembly, and a sorting assembly. The material rack is used to carry the pipes to be processed, and the fixed base, baffle plate, conveying assembly, height limiting assembly, and sorting assembly are respectively mounted on the material rack. The fixed base is mounted on the material rack along its length and is used to provide power to the conveying assembly. The baffle plate is adjustablely mounted on the side of the material rack near the base structure and is used to prevent the pipes to be processed entering the conveying assembly from the material rack from interfering with the second chuck structure. The conveying assembly is used to limit the conveying of the pipes to be processed. The height limiting assembly and the sorting assembly are used together to constrain the stacked pipes to be processed from entering the conveying assembly one by one from the material rack.

[0010] Furthermore, the feeding structure also includes sensing components, with at least three sensing components arranged at intervals along the length of the conveying component. All sensing components are used to detect whether there is a pipe to be processed on the conveying component.

[0011] Furthermore, the cutting structure includes a laser cutting assembly and an adjustment assembly; the laser cutting assembly is used to emit a laser to process the tube to be processed; the adjustment assembly is used to adjust the position of the laser cutting assembly along the height direction.

[0012] Furthermore, the base structure includes a base body, a feeding plate, and a receiving trolley assembly; a first chuck structure, a second chuck structure, a centering clamping structure, and a cutting structure are disposed on the base body; a portion of the feeding plate is located below the cutting structure to receive the pipes processed by the cutting structure, and the feeding plate has a guide surface that is inclined relative to the horizontal plane, the guide surface being used to guide the processed pipes to a designated position; the receiving trolley assembly is located below the first chuck structure and the second chuck structure, and the receiving trolley assembly is used to receive the processed waste pipes.

[0013] Furthermore, the centering clamping structure includes a cylinder, a push arm, and a buffer block; the cylinder is fixedly mounted on the base structure, and the push arm is fixedly mounted on the telescopic end of the cylinder. The cylinder and the push arm form a mating group, and there are at least two mating groups. At least two mating groups are used together to position and clamp the pipe to be processed; a buffer block is fixedly mounted on the end of the push arm facing the pipe to be processed. The buffer block is made of elastic material and is used to at least buffer the impact of the push arm on the pipe to be processed.

[0014] According to another aspect of the present invention, a cutting method is provided, which is applied to the above-mentioned double chuck cutting device. The cutting method includes a cutting step, which includes: transporting one end of the pipe to be processed to the extended second chuck structure; the second chuck structure clamping the pipe to be processed and moving along the length direction until one end of the pipe to be processed extends into the centering clamping structure; the centering clamping structure clamping the pipe to be processed; the second chuck structure releasing the pipe to be processed and moving along the length direction away from the centering clamping structure to the origin; the second chuck structure clamping the pipe to be processed again; the centering clamping structure releasing the pipe to be processed; the second chuck structure moving along the length direction toward the centering clamping structure again until the pipe to be processed passes through and extends beyond the first chuck structure by a set length; the first chuck structure clamping and fixing the pipe to be processed; and then the cutting structure processing the pipe to be processed extending beyond the first chuck structure.

[0015] Furthermore, the cutting method also includes a feeding step and a tail material processing step; the dual-chuck cutting device also includes a feeding structure, which includes a material rack, a conveying component, a height limiting component, and a sorting component; the material rack is used to carry the pipes to be processed, and the conveying component, height limiting component, and sorting component are respectively set on the material rack; the height limiting component and the sorting component are used together to constrain the stacked pipes to be processed to enter the conveying component one by one from the material rack; the conveying component is used to limit the conveying of the pipes to be processed; the feeding structure also includes a sensing component, there are at least three sensing components, and the at least three sensing components are spaced apart along the length direction on the conveying component, and the sensing components are all used to detect whether there are pipes to be processed on the conveying component; the base structure includes a receiving trolley component; the receiving trolley component is located at the first chuck structure Below the first and second chuck structures, a receiving trolley assembly is used to receive processed pipe waste. The loading process includes: at least two pipes to be processed are stacked on a rack and lifted to a set height. Then, a height limiting component and a sorting component jointly constrain one pipe to be processed from the rack into the conveying component. After the pipe enters the conveying component, a sensing component determines whether the pipe is in place. Subsequently, the conveying component transports the pipe to be processed to the second chuck structure, through and out of the second chuck structure by a set length to complete one loading operation. The tail material handling process includes: when the remaining tail material of the pipe to be processed is insufficient in length, pipe waste is formed. The pipe waste falls into the receiving trolley assembly, which collects and transports the pipe waste.

[0016] The present invention provides a dual-chuck cutting device, comprising: a base structure, a first chuck structure, a second chuck structure, a centering clamping structure, and a cutting structure; the base structure has a length direction parallel to the horizontal plane and a height direction perpendicular to the horizontal plane; the first chuck structure and the second chuck structure are respectively movably disposed on the base structure along the length direction, and the first chuck structure and the second chuck structure are spaced apart; the first chuck structure and the second chuck structure are respectively used to clamp the pipe to be processed, and the second chuck structure transports the pipe to be processed to the first chuck structure. The structure includes a centering and clamping structure mounted on the base structure and positioned between the first chuck structure and the second chuck structure. The centering and clamping structure is used for centering, positioning, and clamping the pipe to be processed. The first chuck structure, the second chuck structure, and the centering and clamping structure together constrain the central axis of the pipe to be processed to be parallel to its length direction. A cutting structure is mounted on the base structure and cuts the pipe to be processed fixed at the end of the first chuck structure away from the centering and clamping structure, or the cutting structure cuts the pipe to be processed fixed at the end of the centering and clamping structure away from the first chuck structure.

[0017] This invention provides a stable support platform through a base structure, defining a length direction parallel to the horizontal plane and a height direction perpendicular to the horizontal plane, thus providing a reliable installation foundation for the entire device and ensuring the stability of the relative positions of each component. The first and second chuck structures are movably mounted on the base structure along their length and spaced apart. This dual-chuck design allows for a longer support length for the pipe during processing. Combined with the movable design of the dual chucks, it further enhances the flexibility and stability of pipe clamping, especially for small-diameter or thin-walled pipes, reducing bending deformation caused by the pipe's own weight or cutting forces. A centering clamping structure is positioned between the first and second chuck structures for centering, positioning, and clamping the pipe to be processed. Its location between the two chucks provides additional support to the pipe in the middle position before cutting, further reducing the risk of deformation during pipe processing. The first chuck structure, the second chuck structure, and the centering clamping structure jointly constrain the central axis of the pipe to be processed to be parallel to its length direction, ensuring the consistency of the pipe axis during processing, improving the accuracy of repeated processing, and reducing cutting angle deviation and dimensional error caused by positioning errors. The cutting structure is set on the base structure and can adjust the position of the first chuck structure according to the length of the pipe to be processed. This allows for flexible selection of cutting the pipe with the first chuck structure fixed away from the centering clamping structure, or cutting the pipe with the centering clamping structure fixed away from the first chuck structure. This dual-position cutting capability adapts to pipes of different lengths and processing requirements, improving the versatility of the equipment. This invention achieves three-point positioning and clamping of the pipe to be processed through the first chuck structure, the second chuck structure, and the centering clamping structure. The second chuck structure is responsible for the progressive conveying and support of the pipe, the centering clamping structure is located in the middle for radial centering and axial limiting, and the first chuck structure guides and clamps the end. The three components work together to constrain the central axis of the tube to be processed to be parallel to its length, reducing radial runout, sagging, and axial offset during processing. Based on this clamping, the cutting structure precisely cuts the protruding end, improving the coaxiality and cutting accuracy of small-diameter or thin-walled tubes, avoiding processing defects caused by positioning errors, and realizing high-precision and high-efficiency automated cutting operations. It is particularly suitable for high-precision and high-efficiency laser cutting of small and thin-walled tubes, improving the yield of finished products and production efficiency. The invention has a simple structure and low cost, is easy to assemble and maintain, and solves the problem of poor processing accuracy caused by low feeding accuracy in existing small tube laser cutting equipment, making it suitable for large-scale promotion and use. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 This diagram shows a partial structural schematic of the dual-chuck cutting device provided in an embodiment of the present invention.

[0020] Figure 2 This diagram shows a partial structural schematic of the dual-chuck cutting device provided in an embodiment of the present invention from a frontal viewing angle;

[0021] Figure 3 A partial structural schematic diagram of the dual-chuck cutting device provided in an embodiment of the present invention is shown at the positions of the first chuck structure and the second chuck structure.

[0022] Figure 4 A partial structural schematic diagram of the feeding structure provided in an embodiment of the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 10. Base structure; 11. Feeding plate; 12. Receiving trolley assembly;

[0025] 20. First chuck structure;

[0026] 30. Second chuck structure;

[0027] 40. Centering clamping structure;

[0028] 50. Cutting structure;

[0029] 60. Feeding structure; 61. Material rack; 62. Fixing base; 63. Baffle plate; 64. Conveying assembly; 65. Height limiting assembly; 66. Sorting assembly. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1 to 4As shown, an embodiment of the present invention provides a dual-chuck cutting device, including: a base structure 10, a first chuck structure 20, a second chuck structure 30, a centering clamping structure 40, and a cutting structure 50; the base structure 10 has a length direction parallel to the horizontal plane and a height direction perpendicular to the horizontal plane; the first chuck structure 20 and the second chuck structure 30 are respectively movably disposed on the base structure 10 along the length direction, and the first chuck structure 20 and the second chuck structure 30 are spaced apart; the first chuck structure 20 and the second chuck structure 30 are respectively used to clamp the pipe to be processed, and the second chuck structure 30 transports the pipe to be processed to the first chuck structure 20; A centering clamping structure 40 is disposed on the base structure 10, and the centering clamping structure 40 is located between the first chuck structure 20 and the second chuck structure 30. The centering clamping structure 40 is used for centering, positioning, and clamping the pipe to be processed. The first chuck structure 20, the second chuck structure 30, and the centering clamping structure 40 together constrain the central axis of the pipe to be processed to be parallel to the length direction. A cutting structure 50 is disposed on the base structure 10. The cutting structure 50 cuts the pipe to be processed fixed at the end of the first chuck structure 20 away from the centering clamping structure 40, or the cutting structure 50 cuts the pipe to be processed fixed at the end of the centering clamping structure 40 away from the first chuck structure 20.

[0032] This invention provides a stable support platform through the base structure 10, defining a length direction parallel to the horizontal plane and a height direction perpendicular to the horizontal plane, thus providing a reliable installation foundation for the entire device and ensuring the stability of the relative positions of each component. The first chuck structure 20 and the second chuck structure 30 are movably mounted on the base structure 10 along their length and spaced apart. This dual-chuck design allows for a longer support length for the pipe during processing. Combined with the movable design of the dual chucks, it further enhances the flexibility and stability of pipe clamping, especially for small-diameter or thin-walled pipes, reducing bending deformation caused by the pipe's own weight or cutting force. The centering clamping structure 40 is positioned between the first chuck structure 20 and the second chuck structure 30 for centering, positioning, and clamping the pipe to be processed. Its location between the two chucks provides additional support to the pipe in the middle position before cutting, further reducing the risk of deformation during pipe processing. The first chuck structure 20, the second chuck structure 30, and the centering clamping structure 40 jointly constrain the central axis of the pipe to be processed to be parallel to the length direction, ensuring the consistency of the pipe axis during processing, improving the accuracy of repeated processing, and reducing the cutting angle deviation and dimensional error caused by positioning errors. The cutting structure 50 is set on the base structure 10 and can adjust the position of the first chuck structure 20 according to the length of the pipe to be processed, thereby flexibly choosing to cut the pipe to be processed at the end of the first chuck structure 20 that is fixed away from the centering clamping structure 40, or to cut the pipe to be processed at the end of the centering clamping structure 40 that is fixed away from the first chuck structure 20. This dual-position cutting capability adapts to pipes of different lengths and processing requirements, improving the versatility of the equipment. This invention achieves three-point positioning and clamping of the pipe to be processed through the first chuck structure 20, the second chuck structure 30, and the centering clamping structure 40. The second chuck structure 30 is responsible for the progressive conveying and support of the pipe, the centering clamping structure 40 is located in the middle for radial centering and axial limiting, and the first chuck structure 20... The device guides and clamps the end of the tube, and together these three elements constrain the central axis of the tube to be processed to be parallel to the length direction, reducing radial runout, sagging, and axial offset of the tube during processing. Based on this clamping, the cutting structure 50 precisely cuts the protruding end, improving the coaxiality and cutting accuracy of small-diameter or thin-walled tubes, avoiding processing defects caused by positioning errors, and realizing high-precision and high-efficiency automated cutting operations. It is at least suitable for high-precision and high-efficiency laser cutting operations of small tubes and thin-walled tubes, improving the yield of finished products and production efficiency. The invention has a simple structure and low cost, is easy to assemble and maintain, and solves the problem of poor processing accuracy caused by low feeding accuracy in existing small tube laser cutting equipment, making it suitable for large-scale promotion and use.

[0033] like Figure 2 and Figure 3As shown, the two ends of the movement range of the second chuck structure 30 along the length direction on the base structure 10 are the origin end and the end end, respectively; the origin end is away from the centering clamping structure 40, and the end end is close to the centering clamping structure 40; the second chuck structure 30 moves back and forth between the origin end and the end end to transport the pipe to be processed to the centering clamping structure 40; wherein, the distance between the origin end and the end end along the length direction is greater than or equal to 900 mm and less than or equal to 1200 mm.

[0034] By limiting the length-direction movement range of the second chuck structure 30 on the base structure 10 to the origin and end points respectively, with the origin point far from the centering clamping structure 40 and the end point close to it, the control system can perform precise position planning and repeatable positioning. The distance between the origin and end points along the length direction is set to be greater than or equal to 900 mm and less than or equal to 1200 mm. This travel range design ensures that the second chuck structure 30 has a sufficiently long stroke to stably clamp and transport long or heavy pipes, preventing instability or transport vibration caused by too short a stroke, while avoiding redundancy in equipment size and response delay caused by too long a stroke. Thus, it ensures both transport stability and equipment compactness and operating efficiency. Furthermore, the distance range along the length of the origin and end points is adapted to the length specifications commonly found in laser cutting of small-diameter pipes. This allows the second chuck structure 30 to effectively push the pipe to the vicinity of the centering clamping structure 40, and ultimately cooperate with the first chuck structure 20 to complete the pipe processing operation. This reduces pipe bending or positioning deviation caused by improper conveying distance, improves overall cutting accuracy and processing yield, and meets the dual requirements of efficiency and accuracy in mass production.

[0035] In one specific embodiment of the present invention, the second chuck structure 30 is a claw-type full-stroke chuck. When cutting and processing pipes of different specifications and types, the clamping operation can be completed by changing the corresponding gear, thereby improving the work efficiency.

[0036] like Figure 2 and Figure 3 As shown, one end of the movement trajectory of the first chuck structure 20 is located on one side of the cutting structure 50 along the length direction, and the other end of the movement trajectory of the first chuck structure 20 is located on the other side of the cutting structure 50 along the length direction.

[0037] By setting the movement trajectory of the first chuck structure 20 to span both sides of the cutting structure 50, the flexibility of the working area during pipe cutting is improved. This layout allows the first chuck structure 20 to move from one side of the cutting structure 50 to the other, thereby enabling the transport of different parts of the pipe to be processed to the cutting head for processing, or the removal of the finished pipe from the cutting area after cutting, avoiding the risk of interference between the cutting tool and the clamp, and improving the safety of equipment operation. The movable design of the first chuck structure 20 allows the device to adapt to the clamping requirements of pipes of different lengths. Whether it is a short pipe or a long pipe, the relative distance between the clamping point and the cutting point can be optimized by adjusting the position of the first chuck structure 20, ensuring the stability of the pipe during the cutting process. At the same time, this dual-sided movement trajectory arrangement helps to balance the vibration and stress generated during the cutting process, reducing pipe deformation or cutting errors caused by uneven force on one side, and further improving cutting accuracy. In addition, the first chuck structure 20 can easily enter and exit the cutting area, simplifying the material changing and waste removal process, shortening non-processing time, thereby improving the overall operating efficiency. It is suitable for high-precision laser cutting scenarios that require frequent switching of pipe specifications or continuous batch production.

[0038] like Figure 1 and Figure 4 As shown, the dual-chuck cutting device also includes a feeding structure 60, which includes a material rack 61, a fixed base 62, a baffle plate 63, a conveying assembly 64, a height limiting assembly 65, and a sorting assembly 66. The material rack 61 is used to carry the pipes to be processed. The fixed base 62, the baffle plate 63, the conveying assembly 64, the height limiting assembly 65, and the sorting assembly 66 are respectively arranged on the material rack 61. The fixed base 62 is arranged on the material rack 61 along the length direction and is used to provide power to the conveying assembly 64. The baffle plate 63 is adjustablely arranged on the side of the material rack 61 near the base structure 10. The baffle plate 63 is used to prevent the pipes to be processed entering the conveying assembly 64 from the material rack 61 from interfering with the second chuck structure 30. The conveying assembly 64 is used to limit the conveying of the pipes to be processed. The height limiting assembly 65 and the sorting assembly 66 are used together to constrain the stacked pipes to be processed from entering the conveying assembly 64 from the material rack 61.

[0039] By adding a feeding structure 60, the automated operation of the pipes to be processed from storage to automatic feeding is realized, improving the continuous operation capability of the production line. The rack 61 is used to support the pipes to be processed, providing a stable material storage base. The fixed base 62 is set on the rack 61 along the length direction, providing stable power and stable support for the conveying assembly. The baffle 63 is adjustablely set on the side of the rack 61 near the base structure 10, and its position can be flexibly adjusted according to the pipe length or equipment status. It is mainly used to prevent the pipes to be processed from interfering with the second chuck structure 30 when entering the conveying assembly 64 from the rack 61, protecting the second chuck structure 30 from accidental collision damage, and also avoiding feeding interruption or pipe damage caused by interference. The conveying assembly 64 limits the pipes to be processed on both sides to prevent the pipes from lateral displacement or rolling during transportation, ensuring the straightness and posture stability of the pipes entering the subsequent processing stage. The height-limiting component 65 and the sorting component 66 work together to constrain the stacked pipes to be processed, ensuring that only one pipe enters the conveying component 64 from the rack 61 in an orderly manner at a time. This solves the problems of jamming, overlapping, or simultaneous falling when multiple pipes are stacked, and achieves single-pipe separate conveying. This combined design not only improves the accuracy and reliability of feeding, but also reduces downtime caused by feeding failures, thereby improving the overall feeding efficiency and operational stability of the cutting device.

[0040] Specifically, the feeding structure 60 also includes sensing components. There are at least three sensing components, which are spaced apart along the length of the conveying component 64. All sensing components are used to detect whether there is a pipe to be processed on the conveying component 64.

[0041] By setting at least three sensing components spaced along the length of the conveying assembly 64, real-time, multi-point monitoring of the pipe conveying status is achieved, improving the automation control accuracy and safety of the feeding process. At least three sensing components detect whether there is a pipe to be processed on the conveying assembly 64. This multi-point detection mechanism can monitor the positional changes of the pipe from entering the rack, passing through the conveying section, to arriving at the second chuck structure 30, avoiding blind spots or misjudgments that may occur due to single-point detection, and ensuring accurate judgment of the pipe's position. When the presence of a pipe is detected, the control system can confirm that the pipe conveying direction and speed are normal according to the triggering sequence of each sensing component. If abnormal material shortage or stagnation is detected, subsequent actions can be immediately paused to prevent idling or dry cutting, protecting the cutting structure 50, the first chuck structure 20, and the second chuck structure 30 from damage. Furthermore, the spaced arrangement of the sensing components helps monitor the posture stability of the pipe during conveying. If pipe skew or jamming occurs, the fault point can be quickly identified through the signal differences of sensors at different positions, facilitating timely adjustment or alarm. This distributed detection design not only improves the reliability of feeding small-diameter or thin-walled pipes and reduces downtime due to feeding failures, but also provides data support for more precise production cycle control, thereby improving the overall production efficiency and operational stability of the dual-chuck cutting device.

[0042] Specifically, the cutting structure 50 includes a laser cutting component and an adjustment component; the laser cutting component is used to emit a laser to process the tube to be processed; the adjustment component is used to adjust the position of the laser cutting component along the height direction.

[0043] By incorporating a laser cutting component and an adjustment component into the cutting structure 50, a balance between high precision and flexible adaptability in laser processing is achieved. The laser cutting component emits a laser beam to process the pipe being processed. Utilizing the high energy density and good directionality of the laser, it can quickly and cleanly cut small-diameter or thin-walled pipes, effectively reducing the heat-affected zone and preventing burrs or deformation at the pipe edges, thus ensuring the quality and smoothness of the cut surface. The adjustment component adjusts the position of the laser cutting component along the height direction. This design allows the laser cutting head to make fine adjustments in the vertical direction according to changes in the diameter of the pipe or installation errors, ensuring that the laser focus remains at an appropriate position on the pipe surface and maintaining stable cutting energy output. This height adjustment function not only adapts to the processing needs of pipes of different specifications but also compensates for positioning errors caused by minor deviations in pipe clamping or uneven ground, further improving cutting accuracy and consistency.

[0044] like Figure 1 and Figure 3As shown, the base structure 10 includes a base body, a feeding plate 11, and a receiving trolley assembly 12; a first chuck structure 20, a second chuck structure 30, a centering clamping structure 40, and a cutting structure 50 are disposed on the base body; a portion of the feeding plate 11 is located below the cutting structure 50 to receive the pipes processed by the cutting structure 50, and the feeding plate 11 has a guide surface that is inclined relative to the horizontal plane, which is used to guide the processed pipes to a designated position; the receiving trolley assembly 12 is located below the first chuck structure 20 and the second chuck structure 30, and the receiving trolley assembly 12 is used to receive the processed waste pipes.

[0045] By setting the base structure 10 to include the base body, the unloading plate 11, and the receiving trolley assembly 12, the automation level of the equipment and the cleanliness of the working environment are improved. The base body supports the first chuck structure 20, the second chuck structure 30, the centering clamping structure 40, and the cutting structure 50, providing a stable mounting foundation for each core functional component, ensuring the stability of the relative positions of each component during processing, and guaranteeing cutting accuracy. A portion of the unloading plate 11 is located below the cutting structure 50 to receive the processed pipe. Its surface has a guide surface that is inclined relative to the horizontal plane. Through gravity, it can automatically and smoothly guide the cut finished pipe to the designated collection position, avoiding secondary damage caused by the accumulation or slippage of the finished pipe in the cutting area. It also simplifies the manual material handling steps and improves the output efficiency. The receiving trolley assembly 12 is located below the first chuck structure 20 and the second chuck structure 30. It is specifically designed to receive pipe waste (such as tail material or short-cut waste) generated during the cutting process. This design of receiving waste nearby effectively prevents waste from being scattered on the ground or inside the equipment, making it easy to clean and transfer, and maintaining the cleanliness and safety of the work area.

[0046] Specifically, the centering clamping structure 40 includes a cylinder, a push arm, and a buffer block; the cylinder is fixedly mounted on the base structure 10, and the push arm is fixedly mounted on the telescopic end of the cylinder. The cylinder and the push arm form a mating group, and there are at least two mating groups. The at least two mating groups are used together to position and clamp the pipe to be processed; a buffer block is fixedly mounted on the end of the push arm facing the pipe to be processed. The buffer block is made of elastic material and is used to at least buffer the impact of the push arm on the pipe to be processed.

[0047] By setting up a centering clamping structure 40 including a cylinder, a push arm, and a buffer block, and employing at least two mating groups working in concert, high-precision and high-stability positioning and clamping of the pipe to be processed is achieved. The cylinder is fixedly mounted on the base structure 10, providing a stable and controllable power source. The push arm is fixedly mounted on the telescopic end of the cylinder, ensuring the straightness and synchronization of the clamping action. The arrangement of at least two mating groups ensures that the pipe is uniformly clamped at multiple points in the circumferential direction, constraining the pipe's degrees of freedom, reducing radial runout and axial offset, thereby ensuring that the pipe's central axis is parallel to the length direction and improving the centering accuracy during cutting. A buffer block made of elastic material is fixedly mounted on the end of the push arm facing the pipe to be processed. This design plays a crucial role in buffering and protecting the pipe during clamping. When the push arm advances to clamp the pipe, the buffer block can absorb impact energy, preventing rigid contact from causing scratches, crushing, or plastic deformation of the pipe surface. This flexible clamping structure not only protects the integrity of the workpiece but also improves the adaptability of the clamping force, enabling the device to be compatible with pipes of different hardness or wall thickness.

[0048] The present invention also provides a cutting method applied to the above-mentioned double chuck cutting device. The cutting method includes a cutting step, which includes: transporting one end of the pipe to be processed to the extension of the second chuck structure 30; the second chuck structure 30 clamping the pipe to be processed and moving along the length direction until one end of the pipe to be processed extends into the centering clamping structure 40; the centering clamping structure 40 clamping the pipe to be processed; the second chuck structure 30 releasing the pipe to be processed and moving along the length direction away from the centering clamping structure 40 to the origin; the second chuck structure 30 clamping the pipe to be processed again; the centering clamping structure 40 releasing the pipe to be processed; the second chuck structure 30 moving along the length direction toward the centering clamping structure 40 again until the pipe to be processed passes through and extends beyond the first chuck structure 20 by a set length; the first chuck structure 20 clamping and fixing the pipe to be processed; and then the cutting structure 50 processing the pipe to be processed extending beyond the first chuck structure 20.

[0049] By employing a relay-style conveying and positioning clamping system with dual chucks and a centering clamping structure working in tandem, high-precision centering and stable clamping of small-diameter and thin-walled pipes are achieved during the cutting process. This solves the problems of low processing accuracy and pipe deformation caused by the accumulation of positioning errors in traditional single-chuck equipment. The second chuck structure 30 first clamps the pipe and conveys it to the vicinity of the centering clamping structure 40, where it performs initial positioning and clamping, initially reducing the accumulated error of the pipe during conveying. Subsequently, the second chuck structure 30 returns to its original position and clamps again. Combined with the release of the centering clamping structure 40, dynamic and stable support is achieved for the pipe during long-distance conveying, preventing sagging and swaying caused by the pipe's own weight or inertia. Next, the second chuck structure 30 moves to push the pipe to the first chuck structure 20 until it extends to a set length. The first chuck structure 20, the second chuck structure 30, and the centering clamping structure 40 jointly clamp and fix the pipe. This process ensures precise and controllable positioning of the cutting part relative to the chucks. The cutting structure 50 operates while the pipe is securely clamped. Since the pipe has been strictly constrained by a multi-segment relay and centering mechanism before cutting, its axis remains parallel to the cutting trajectory, reducing vibration and offset during the cutting process, improving the perpendicularity and dimensional accuracy of the cut, reducing manual intervention, and improving the level of automation. It is at least suitable for the high-precision and high-efficiency cutting needs of small and thin-walled pipes in mass production, and reduces the scrap rate.

[0050] Specifically, the cutting method also includes a feeding step and a tail material processing step; the dual-chuck cutting device also includes a feeding structure 60, which includes a material rack 61, a conveying component 64, a height limiting component 65, and a sorting component 66; the material rack 61 is used to carry the pipes to be processed, and the conveying component 64, the height limiting component 65, and the sorting component 66 are respectively arranged on the material rack 61; the conveying component 64 is used to limit the conveying of the pipes to be processed; the height limiting component 65 and the sorting component 66 are used together to constrain the stacked pipes to be processed from the material rack 61 into the conveying component 64; the feeding structure 60 also includes a sensing component, there are at least three sensing components, and the at least three sensing components are spaced apart along the length direction on the conveying component 64, and the sensing components are all used to detect whether there are pipes to be processed on the conveying component 64; the base structure 10 includes a receiving trolley assembly 12; the receiving trolley assembly 12 Located below the first chuck structure 20 and the second chuck structure 30, the receiving trolley assembly 12 is used to receive the processed pipe waste. The loading step includes: the material rack 61 carries at least two stacked pipes to be processed, and after the pipes to be processed are lifted to a set height, the height limiting component 65 and the sorting component 66 jointly constrain one pipe to be processed from the material rack 61 into the conveying component 64. After the pipe to be processed enters the conveying component 64, the sensing component determines whether the pipe to be processed is in place. Then the conveying component 64 transports the pipe to be processed to the second chuck structure 30, passes through and extends out of the second chuck structure 30 by a set length to complete one loading. The tail material processing step includes: when the remaining tail material of the pipe to be processed is not long enough, pipe waste is formed. The pipe waste falls into the receiving trolley assembly 12, and the receiving trolley assembly 12 collects and transports the pipe waste.

[0051] By integrating the feeding structure 60 with specific loading and waste disposal steps, automated operations are achieved from automatic loading and precise placement detection to waste removal, improving production efficiency and reducing labor costs. In the feeding structure 60, the rack 61 carries multiple pipes to be processed. Combined with the height limiting component 65 and the sorting component 66, this effectively constrains the stacked pipes, ensuring that only one pipe enters the conveying component 64 at a time, avoiding jamming or interference caused by multiple pipes entering simultaneously, and achieving stable single-pipe separation and conveying. At least three sensing components spaced along the length direction monitor the pipe status on the conveying component 64 in real time. Multi-point detection confirms whether the pipe is in place and whether the conveying path is unobstructed, improving the reliability of the loading process and fault warning capabilities, preventing downtime or processing errors due to material shortages or misfeeding. The conveying component 64 transports the confirmed pipes to the second chuck structure 30, completing automatic loading and reducing manual intervention. In the tailings processing stage, the receiving trolley assembly 12 is located below the first chuck structure 20 and the second chuck structure 30, which promptly receives the pipe waste of insufficient length generated during the cutting process. This achieves centralized collection and transfer of waste materials, keeps the work area clean, avoids waste scattering that may affect production safety or cause equipment pollution, optimizes material flow efficiency, and solves the problems of difficult feeding of small-diameter pipes and cumbersome waste disposal.

[0052] The working process and principle of a specific embodiment of the present invention will now be described in detail as follows:

[0053] First, in the automatic feeding stage, the rack 61 carries stacked pipes to be processed. The height limiting component 65 and the sorting component 66 work together to prevent the pipes from entering the conveying component 64 one by one in an orderly manner from the rack 61. Under the limitation of the fixed seat 62, the conveying component 64 conveys the individual pipes along their length. At least three sensing components set along the conveying path monitor the position of the pipes in real time. The pipes are transported to the second chuck structure 30 and extend beyond the set length. Entering the cutting preparation stage, the second chuck structure 30 clamps the pipes and moves them towards the centering clamping structure 40, so that one end of the pipe extends into the centering clamping structure 40. The cylinder in the centering clamping structure 40 drives the push arm to move the elastic buffer block to clamp the pipes, achieving centering and positioning. Subsequently, the second chuck structure 30 releases and returns to its original position, the centering clamping structure 40 releases the tube, the second chuck structure 30 clamps the tube again and pushes it through the centering clamping structure 40 and out of the first chuck structure 20 to the set length. Finally, the first chuck structure 20, the second chuck structure 30, and the centering clamping structure 40 complete the clamping and fixing. During the cutting stage, the laser cutting component in the cutting structure 50 performs laser cutting on the tube extending out of the first chuck structure 20 according to the height adjusted by the adjusting component. After processing, the finished tube slides out along the inclined guide surface of the unloading plate 11, while the waste material generated by cutting falls directly into the receiving trolley component 12 located below the chuck, where it is collected and transported, thus completing a complete automated cutting operation. This effectively avoids tube deformation and positioning errors, improving processing accuracy and efficiency.

[0054] In summary, this invention provides a dual-chuck cutting device and method. The dual-chuck cutting device provides a stable support platform through the base structure 10, defining the length direction parallel to the horizontal plane and the height direction perpendicular to the horizontal plane, providing a reliable installation foundation for the entire device and ensuring the stability of the relative positions of each component. The first chuck structure 20 and the second chuck structure 30 are movably arranged on the base structure 10 along the length direction and are spaced apart. This dual-chuck design allows the pipe to have a longer support length during processing. Combined with the movable design of the dual chucks, it further improves the flexibility and stability of pipe clamping, especially for small-diameter or thin-walled pipes, reducing bending deformation caused by the pipe's own weight or cutting force. The centering clamping structure 40 is arranged between the first chuck structure 20 and the second chuck structure 30 for centering, positioning, and clamping the pipe to be processed. Its layout between the two chucks provides the pipe with additional support in the middle position before cutting, further reducing the risk of deformation during pipe processing. The first chuck structure 20, the second chuck structure 30, and the centering clamping structure 40 jointly constrain the central axis of the pipe to be processed to be parallel to the length direction, ensuring the consistency of the pipe axis during processing, improving the accuracy of repeated processing, and reducing the cutting angle deviation and dimensional error caused by positioning errors. The cutting structure 50 is set on the base structure 10 and can adjust the position of the first chuck structure 20 according to the length of the pipe to be processed, thereby flexibly choosing to cut the pipe to be processed at the end of the first chuck structure 20 that is fixed away from the centering clamping structure 40, or to cut the pipe to be processed at the end of the centering clamping structure 40 that is fixed away from the first chuck structure 20. This dual-position cutting capability adapts to pipes of different lengths and processing requirements, improving the versatility of the equipment. This invention achieves three-point positioning and clamping of the pipe to be processed through the first chuck structure 20, the second chuck structure 30, and the centering clamping structure 40. The second chuck structure 30 is responsible for the progressive conveying and support of the pipe, the centering clamping structure 40 is located in the middle for radial centering and axial limiting, and the first chuck structure 20... The device guides and clamps the end of the tube, and together these three elements constrain the central axis of the tube to be processed to be parallel to the length direction, reducing radial runout, sagging, and axial offset of the tube during processing. Based on this clamping, the cutting structure 50 precisely cuts the protruding end, improving the coaxiality and cutting accuracy of small-diameter or thin-walled tubes, avoiding processing defects caused by positioning errors, and realizing high-precision and high-efficiency automated cutting operations. It is particularly suitable for high-precision and high-efficiency laser cutting operations of small tubes and thin-walled tubes, improving the yield of finished products and production efficiency. The invention has a simple structure and low cost, is easy to assemble and maintain, and solves the problem of poor processing accuracy caused by low feeding accuracy in existing small tube laser cutting equipment, making it suitable for large-scale promotion and use.

[0055] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0058] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0060] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dual-chuck cutting device, characterized in that, include: The base structure (10), the first chuck structure (20), the second chuck structure (30), the centering clamping structure (40), and the cutting structure (50) are provided. The base structure (10) has a length direction parallel to the horizontal plane and a height direction perpendicular to the horizontal plane. The first chuck structure (20) and the second chuck structure (30) are movably disposed on the base structure (10) along the length direction, and the first chuck structure (20) and the second chuck structure (30) are spaced apart. The first chuck structure (20) and the second chuck structure (30) are used to clamp the pipe to be processed, and the second chuck structure (30) transports the pipe to be processed to the first chuck structure (20). The centering clamping structure (40) is disposed on the base structure (10). The centering clamping structure (40) is located between the first chuck structure (20) and the second chuck structure (30). The centering clamping structure (40) is used for centering, positioning and clamping the pipe to be processed. The first chuck structure (20), the second chuck structure (30) and the centering clamping structure (40) together constrain the central axis of the pipe to be processed to be parallel to the length direction. The cutting structure (50) is set on the base structure (10). The cutting structure (50) cuts the pipe to be processed fixed at the end of the first chuck structure (20) away from the centering clamping structure (40), or the cutting structure (50) cuts the pipe to be processed fixed at the end of the centering clamping structure (40) away from the first chuck structure (20).

2. The dual-chuck cutting device according to claim 1, characterized in that, The second chuck structure (30) has two endpoints on the base structure (10) along the length direction, namely the origin end and the end end; the origin end is away from the centering clamping structure (40), and the end end is close to the centering clamping structure (40); the second chuck structure (30) moves back and forth between the origin end and the end end to deliver the pipe to be processed to the centering clamping structure (40); wherein the distance between the origin end and the end end along the length direction is greater than or equal to 900 mm and less than or equal to 1200 mm.

3. The dual-chuck cutting device according to claim 2, characterized in that, One end of the movement trajectory of the first chuck structure (20) is located on one side of the cutting structure (50) along the length direction, and the other end of the movement trajectory of the first chuck structure (20) is located on the other side of the cutting structure (50) along the length direction.

4. The dual-chuck cutting device according to claim 1, characterized in that, The dual-chuck cutting device further includes a feeding structure (60), which includes a material rack (61), a fixed base (62), a baffle plate (63), a conveying assembly (64), a height limiting assembly (65), and a sorting assembly (66). The material rack (61) is used to support the pipe to be processed. The fixed base (62), the baffle plate (63), the conveying assembly (64), the height limiting assembly (65), and the sorting assembly (66) are respectively arranged on the material rack (61). The fixed base (62) is arranged on the material rack (61) along the length direction. 62) Used to provide power to the conveying assembly (64); the baffle (63) is adjustablely disposed on the side of the rack (61) near the base structure (10), the baffle (63) is used to prevent the pipe to be processed from entering the conveying assembly (64) from the rack (61) from interfering with the second chuck structure (30); the conveying assembly (64) is used to limit the conveying of the pipe to be processed; the height limiting assembly (65) and the sorting assembly (66) are used together to constrain the stacked pipes to be processed from entering the conveying assembly (64) from the rack (61).

5. The dual-chuck cutting device according to claim 4, characterized in that, The feeding structure (60) also includes sensing components. There are at least three sensing components, which are spaced apart along the length direction on the conveying component (64). The sensing components are all used to detect whether the pipe to be processed is on the conveying component (64).

6. The dual-chuck cutting device according to claim 1, characterized in that, The cutting structure (50) includes a laser cutting component and an adjustment component; the laser cutting component is used to emit a laser to process the pipe to be processed; the adjustment component is used to adjust the position of the laser cutting component along the height direction.

7. The dual-chuck cutting device according to claim 6, characterized in that, The base structure (10) includes a base body, a feeding plate (11), and a receiving trolley assembly (12); the first chuck structure (20), the second chuck structure (30), the centering clamping structure (40), and the cutting structure (50) are disposed on the base body; a portion of the feeding plate (11) is located below the cutting structure (50) to receive the pipes processed by the cutting structure (50), and the feeding plate (11) has a guide surface that is inclined relative to the horizontal plane, the guide surface being used to guide the processed pipes to a designated position; the receiving trolley assembly (12) is located below the first chuck structure (20) and the second chuck structure (30), and the receiving trolley assembly (12) is used to receive the processed pipe waste.

8. The dual-chuck cutting device according to claim 1, characterized in that, The centering clamping structure (40) includes a cylinder, a push arm, and a buffer block; the cylinder is fixedly mounted on the base structure (10), the push arm is fixedly mounted on the telescopic end of the cylinder, the cylinder and the push arm form a mating group, there are at least two mating groups, and at least two mating groups are used together to position and clamp the pipe to be processed; the end of the push arm facing the pipe to be processed is fixedly mounted with the buffer block, the buffer block is made of elastic material, and the buffer block is used at least to buffer the impact of the push arm on the pipe to be processed.

9. A cutting method, characterized in that, The cutting method is applied to the double chuck cutting device according to any one of claims 1 to 8. The cutting method includes a cutting step, which includes: transporting one end of the pipe to be processed to the point where it extends out of the second chuck structure (30); the second chuck structure (30) clamps the pipe to be processed and moves it along the length direction until one end of the pipe to be processed extends into the centering clamping structure (40); the centering clamping structure (40) clamps the pipe to be processed; the second chuck structure (30) releases the pipe to be processed and moves it away from the centering clamping structure (40) along the length direction. After the centering clamping structure (40) moves to the origin, the second chuck structure (30) clamps the pipe to be processed again. The centering clamping structure (40) releases the pipe to be processed. The second chuck structure (30) moves again along the length direction toward the centering clamping structure (40) until the pipe to be processed passes through and extends beyond the first chuck structure (20) by a set length. Then, the first chuck structure (20) clamps and fixes the pipe to be processed. Then, the cutting structure (50) processes the pipe to be processed that extends beyond the first chuck structure (20).

10. The cutting method according to claim 9, characterized in that, The cutting method also includes a feeding step and a tail material processing step; The dual-chuck cutting device further includes a feeding structure (60), which includes a material rack (61), a conveying assembly (64), a height limiting assembly (65), and a sorting assembly (66). The material rack (61) is used to carry the pipe to be processed. The conveying assembly (64), the height limiting assembly (65), and the sorting assembly (66) are respectively arranged on the material rack (61). The height limiting assembly (65) and the sorting assembly (66) are used together to constrain the stacked pipes to be processed from the material rack (61) into the conveying assembly (64). The feeding structure (60) also includes a sensing assembly. There are at least three sensing assemblies, which are spaced apart along the length direction on the conveying assembly (64). Each sensing assembly is used to detect whether there are pipes to be processed on the conveying assembly (64). The base structure (10) includes a receiving trolley assembly (12); the receiving trolley assembly (12) is located below the first chuck structure (20) and the second chuck structure (30), and the receiving trolley assembly (12) is used to receive processed pipe waste; The loading step includes: the rack (61) carries at least two stacked pipes to be processed, and after the pipes to be processed are raised to a set height, the height limiting component (65) and the sorting component (66) jointly constrain one of the pipes to be processed from the rack (61) into the conveying component (64). After the pipes to be processed enter the conveying component (64), the sensing component determines whether the pipes to be processed are in place. Then the conveying component (64) transports the pipes to be processed to the second chuck structure (30), passes through and extends out of the second chuck structure (30) by a set length to complete one loading. The tailings processing steps include: when the remaining tailings of the pipe to be processed are not long enough, pipe waste is formed, and the pipe waste falls into the receiving trolley assembly (12), which collects and transports the pipe waste.

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