Automatic copper pipe cutting equipment and cutting method thereof

Abstract

The invention discloses automatic copper pipe cutting equipment and a cutting method thereof, and relates to the technical field of copper pipe cutting, the automatic copper pipe cutting equipment comprises a cutting machine table and a control electric box, and a feeding assembly, a positioning assembly and a cutting assembly are installed on the cutting machine table; the positioning assembly comprises a positioning rack, and two first positioning blocks are installed on the positioning rack at intervals. The positioning rack is slidably connected with a positioning sliding plate, and two second positioning blocks are installed on the positioning sliding plate at intervals. The positioning rack is further provided with a positioning air cylinder used for driving the positioning sliding plate to move in the third direction, the first positioning blocks and the second positioning blocks are both used for cutting and positioning the to-be-cut copper pipe conveyed by the feeding assembly in the first direction, and the cutting assembly is used for automatically cutting the copper pipe area located between the two first positioning blocks. The problem that when cutting equipment in the prior art relates to copper pipe cutting, the quality of a notch of a copper pipe is poor due to the fact that clamping force of a copper pipe cutting area is not uniform is solved.

Description

Technical Field

[0001] This invention relates to the field of copper pipe cutting technology, and in particular to an automatic copper pipe cutting device and its cutting method. Background Technology

[0002] Copper pipes are widely used in refrigeration, HVAC, power, and industrial equipment due to their excellent thermal conductivity, corrosion resistance, and plasticity. During production and installation, long copper pipes often need to be cut to specific lengths.

[0003] In existing technologies, traditional cutting equipment mostly uses positioning blocks in conjunction with a single cylinder to rigidly clamp copper tubes from one or both sides before cutting them. However, when cutting copper tubes in this way, the clamping point at one end of the copper tube is close to the cutting area, while the clamping point at the other end is far away from the cutting area. This results in uneven clamping force in the cutting area, leading to uneven cuts, bevels, or burrs on the cut surface, thus resulting in poor cut quality.

[0004] It is evident that existing cutting equipment, when cutting copper tubes, suffers from poor cut quality due to uneven clamping force in the copper tube cutting area. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic copper tube cutting device and its cutting method, which solves the problem that the cutting quality of copper tubes is poor due to uneven clamping force in the copper tube cutting area when the cutting device in the prior art is involved in copper tube cutting.

[0006] To achieve this objective, the present invention adopts the following technical solution: According to a first aspect, the present invention provides an automatic copper tube cutting device, including a cutting machine table and a control box, wherein a feeding component, a positioning component and a cutting component are installed on the cutting machine table; The positioning component includes a positioning frame, on which two first positioning blocks are spaced apart and arranged along a first direction, and the two first positioning blocks are at the same height along a second direction; a positioning slide plate is slidably connected to the positioning frame, and two second positioning blocks corresponding one-to-one with the two first positioning blocks are spaced apart on the positioning slide plate; a positioning cylinder for driving the positioning slide plate to move along a third direction is also installed on the positioning frame, and the first direction, the second direction, and the third direction are perpendicular to each other; The first positioning block and the second positioning block are both used to cut and position the copper tube to be cut that is conveyed by the feeding component along the first direction. The cutting component is used to automatically cut the copper tube area located between the two first positioning blocks.

[0007] Optionally, the positioning frame is equipped with two positioning slide rods arranged along a third direction, the height of the positioning slide rods along the second direction is lower than the height of the first positioning block along the second direction; each positioning slide rod is fitted with a positioning spring, one end of the positioning spring abuts against the positioning slide plate, and the other end of the positioning spring abuts against the positioning frame.

[0008] Optionally, each of the first positioning blocks is provided with a first positioning groove, and each of the second positioning blocks is provided with a second positioning groove corresponding to the first positioning groove. Both the first positioning groove and the second positioning groove are used to position and clamp the outer wall of the copper tube to be cut. The positioning frame is provided with a first clearance groove located between two first positioning blocks, and the positioning slide is provided with a second clearance groove located between two second positioning blocks. Both the first clearance groove and the second clearance groove are used to provide clearance space for the cutting operation of the cutting saw blade of the cutting assembly.

[0009] Optionally, a first baffle is installed on one side of the first positioning block, and a second baffle is installed on one side of the second positioning block, which is diagonally opposite to the first baffle. The first baffle and the second baffle are located between the two positioning slide rods and are both used to block the copper tube chips generated when the cutting assembly cuts the copper tube. The width of the first baffle along the third direction is less than or equal to the width of the first positioning block along the third direction, and the width of the second baffle along the third direction is less than or equal to the width of the second positioning block along the third direction.

[0010] Optionally, each of the first positioning blocks has a first through groove that communicates with both ends of it along the first direction, and the first through groove communicates with the first positioning groove; each of the second positioning blocks has a second through groove that communicates with both ends of it along the first direction, and the second through groove communicates with the second positioning groove. The first through groove is used to increase the friction between the first positioning block and the copper tube to be cut, and the second through groove is used to increase the friction between the second positioning block and the copper tube to be cut.

[0011] Optionally, the two first through slots have different heights along the second direction, the two second through slots have different heights along the second direction, and the adjacent first through slots and second through slots have different heights along the second direction.

[0012] Optionally, the feeding assembly includes a feeding rack fixedly installed on the cutting machine table, the feeding rack being slidably connected to a feeding slide plate, and a clamping component for positioning and clamping the copper tube to be cut being installed on the feeding slide plate; The feeding slide plate is provided with a feeding screw arranged along the first direction and rotatably connected to the feeding frame. The end of the feeding frame away from the positioning component is equipped with a feeding motor for driving the feeding screw to rotate around the first direction.

[0013] Optionally, the clamping member includes a clamping frame fixedly installed on the feeding slide plate, a first clamping block fixedly connected to the clamping frame, a clamping slide plate slidably connected to the clamping frame, a second clamping block corresponding to the first clamping block fixedly connected to the clamping slide plate, and a clamping cylinder installed on the clamping frame for driving the second clamping block to move in a direction close to or away from the first clamping block.

[0014] Optionally, the cutting assembly includes a cutting frame hinged to the cutting machine table, one end of the cutting frame is rotatably connected to a cutting saw blade disposed adjacent to the positioning assembly, and a cutting motor is mounted on the cutting frame for driving the cutting saw blade to rotate about a first direction; The other end of the cutting frame is hinged to a cutting cylinder that is hinged to the cutting machine table. The cutting cylinder is used to drive the cutting frame to swing so that the cutting saw blade moves in a direction closer to or away from the positioning component.

[0015] According to a second aspect, the present invention provides a method for cutting copper tubes, applied to the automatic copper tube cutting equipment described in the first aspect, comprising: Step S1: The copper tube to be cut is conveyed to the positioning component along the first direction by the feeding component, so that the copper tube abuts against the two first positioning blocks and the area of ​​the copper tube to be cut is located between the two first positioning blocks. Step S2: The positioning slide is driven by the positioning cylinder to move along a third direction, so that the second positioning block moves in a direction close to the first positioning block, and the copper tube to be cut is positioned and pressed against the two first positioning blocks by the two second positioning blocks. Step S3: The copper pipe area located between the two first positioning blocks is automatically cut by the cutting component to obtain a copper pipe segment of a predetermined length.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides an automatic copper tube cutting device and method. By employing a one-to-one arrangement of two first positioning blocks and two second positioning blocks, with the two first positioning blocks having the same height along a second direction, the copper tube to be cut can be evenly clamped by the first and second positioning blocks in the cutting area. This significantly reduces vibration or displacement of the copper tube during the cutting process, effectively preventing uneven cuts, bevels, or burrs, and improving the cut quality of the copper tube. Through the synergistic action of the first and second positioning blocks, precise positioning and reliable fixing of the copper tube are achieved, ensuring that the cutting assembly can operate stably along a predetermined path during automatic cutting, further guaranteeing the consistency of cutting dimensions and the smoothness of the cut. Through the integrated design of the feeding assembly, positioning assembly, and cutting assembly, a fully automated process from copper tube feeding and positioning to cutting is realized, reducing manual intervention, improving cutting efficiency, and reducing operational errors, making it suitable for large-scale continuous production. Therefore, this invention solves the problem of poor cut quality of copper tubes caused by uneven clamping force in the cutting area when cutting copper tubes in existing cutting equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 This is a three-dimensional structural diagram of an automatic copper tube cutting device provided in an embodiment of the present invention; Figure 2 A three-dimensional structural diagram of a positioning component in an automatic copper tube cutting device provided in an embodiment of the present invention; Figure 3 This is an exploded structural diagram of a positioning component in an automatic copper tube cutting device according to an embodiment of the present invention; Figure 4 A three-dimensional structural diagram of the first positioning block in an automatic copper tube cutting device provided in an embodiment of the present invention; Figure 5A three-dimensional structural diagram of the second positioning block in an automatic copper tube cutting device provided in an embodiment of the present invention; Figure 6 A three-dimensional structural diagram of the feeding component in an automatic copper tube cutting device provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a clamping component in an automatic copper tube cutting device according to an embodiment of the present invention; Figure 8 A three-dimensional structural diagram of a cutting component in an automatic copper tube cutting device provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of a test structure for an automatic copper tube cutting device provided in an embodiment of the present invention; Figure 10 for Figure 9 A schematic diagram of the AA cross-sectional structure; Figure 11 This is a flowchart illustrating a method for cutting copper tubes according to an embodiment of the present invention.

[0020] Illustration: 10. Cutting machine stand; 11. Waste collection port; 12. Waste collection conduit; 13. Waste collection box; 20. Control box; 30. Feeding assembly; 31. Feeding rack; 32. Feeding slide plate; 33. Clamping component; 331. Clamping frame; 332. First clamping block; 3321. First clamping groove; 333. Clamping slide plate; 334. Second clamping block; 3341. Second clamping groove; 335. Clamping cylinder; 34. Feeding screw; 35. Feeding motor; 40. Positioning assembly; 41. Positioning frame; 411. First clearance groove; 42. First positioning block; 421. First positioning groove; 422. First through groove; 43. Positioning slide plate; 431. Second clearance groove; 44. Second positioning block; 441. Second positioning groove; 442. Second through groove; 45. Positioning cylinder; 46. Positioning slide rod; 47. Positioning spring; 48. First baffle; 49. Second baffle; 50. Cutting assembly; 51. Cutting frame; 52. Cutting saw blade; 53. Cutting motor; 54. Cutting cylinder; 55. Limiting plate; 56. Limiting rod; 57. Limiting ring. Detailed Implementation

[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and 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 of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This invention provides an automatic copper tube cutting device, such as... Figures 1 to 10 As shown, it includes a cutting machine table 10 and a control box 20. The cutting machine table 10 is equipped with a feeding assembly 30, a positioning assembly 40 and a cutting assembly 50. The positioning assembly 40 includes a positioning frame 41, on which two first positioning blocks 42 are spaced apart and arranged along a first direction, and the two first positioning blocks 42 are at the same height along a second direction; a positioning slide plate 43 is slidably connected to the positioning frame 41, and two second positioning blocks 44 corresponding one-to-one with the two first positioning blocks 42 are spaced apart on the positioning slide plate 43; a positioning cylinder 45 for driving the positioning slide plate 43 to move along a third direction is also installed on the positioning frame 41, and the first direction, the second direction and the third direction are perpendicular to each other; The first positioning block 42 and the second positioning block 44 are both used to cut and position the copper tube to be cut conveyed by the feeding component 30 along the first direction, and the cutting component 50 is used to automatically cut the copper tube area located between the two first positioning blocks 42.

[0025] It should be noted that the automatic copper tube cutting device provided by this invention employs a one-to-one arrangement of two first positioning blocks 42 and two second positioning blocks 44, with the two first positioning blocks 42 having the same height along the second direction. This ensures that the copper tube to be cut is evenly clamped by the first positioning blocks 42 and the second positioning blocks 44 in the cutting area, significantly reducing vibration or displacement of the copper tube during the cutting process. This effectively prevents uneven cuts, bevels, or burrs, thus improving the cut quality of the copper tube. Through the synergistic effect of the first positioning blocks 42 and the second positioning blocks 44, precise positioning and reliable fixing of the copper tube are achieved, ensuring that the cutting component 50 can operate stably along the predetermined path during automatic cutting, further guaranteeing the consistency of cutting dimensions and the smoothness of the cut. Through the integrated design of the feeding component 30, the positioning component 40, and the cutting component 50, a fully automated process from feeding and positioning to cutting of the copper tube is realized, reducing manual intervention, improving cutting efficiency, and reducing operational errors. This makes it suitable for large-scale continuous production. Therefore, the present invention solves the problem that the cutting quality of copper tubes is poor due to uneven clamping force in the copper tube cutting area when the cutting equipment in the prior art is involved in copper tube cutting.

[0026] like Figures 1 to 5 As shown, two positioning slide rods 46 are installed inside the positioning frame 41, arranged along the third direction. The height of the positioning slide rods 46 along the second direction is lower than the height of the first positioning block 42 along the second direction. Each positioning slide rod 46 is fitted with a positioning spring 47. One end of the positioning spring 47 abuts against the positioning slide plate 43, and the other end of the positioning spring 47 abuts against the positioning frame 41.

[0027] In practical implementation, since the positioning spring 47 is compressed between the positioning slide plate 43 and the positioning frame 41, when the positioning cylinder 45 drives the positioning slide plate 43 and the second positioning block 44 to move towards the first positioning block 42 to clamp the copper tube, this structure provides a flexible clamping force. This flexible mechanism can effectively absorb and buffer the rigid impact that may be generated during the clamping process, preventing the copper tube from being crushed or deformed due to excessive clamping force, especially for precision copper tubes with thin walls. Thus, while ensuring reliable fixation, it effectively protects the workpiece. Since the copper tube to be cut may have slight manufacturing tolerances in diameter, or slight axial deviations when it is conveyed to the loading position, the positioning spring 47 can automatically compress or rebound according to the actual size of the copper tube, driving the positioning slide plate 43 to make fine adjustments, thereby compensating for these tolerances. This ensures a stable and reliable clamping effect on copper tubes from different batches or with slight dimensional fluctuations, improving the equipment's adaptability to different working conditions and the stability of production.

[0028] During the cutting process, the cutting assembly 50 acts on the copper tube, generating vibration and cutting force. The continuous clamping force of the positioning spring 47, combined with the guiding action of the positioning slide rod 46, forms a dynamically stable clamping system. This system can maintain a continuous and gentle clamping force during the cutting operation, effectively suppressing the slight displacement of the copper tube under cutting vibration. This, in conjunction with the aforementioned uniform clamping effect, ensures a smooth cutting process, avoids defects such as beveled edges and burrs on the copper tube, and guarantees high quality and consistency of the cut.

[0029] like Figures 3 to 5 As shown, each first positioning block 42 is provided with a first positioning groove 421, and each second positioning block 44 is provided with a second positioning groove 441 corresponding to the first positioning groove 421. The first positioning groove 421 and the second positioning groove 441 are both used to position and clamp the outer wall of the copper tube to be cut. In this embodiment, the first positioning groove 421 and the second positioning groove 441 are both arc-shaped. The positioning frame 41 is provided with a first clearance groove 411 located between two first positioning blocks 42, and the positioning slide plate 43 is provided with a second clearance groove 431 located between two second positioning blocks 44. Both the first clearance groove 411 and the second clearance groove 431 are used to provide clearance space for the cutting operation of the cutting saw blade 52 of the cutting assembly 50.

[0030] In practice, through the combined use of the first positioning groove 421 and the second positioning groove 441, the arc-shaped groove can fit snugly against the outer wall of the copper tube to be cut. This design not only achieves precise radial positioning of the copper tube, ensuring that its axis is always in the preset correct position, but more importantly, by wrapping around the outer wall of the copper tube, it provides effective circumferential constraint, reliably preventing the copper tube from rotating during clamping or cutting, laying a solid foundation for high-precision cutting. The positioning groove structure allows the clamping force to act on the outer wall of the copper tube through a single surface (groove wall), significantly increasing the effective contact area. This can evenly distribute the clamping force over a wider area of ​​the tube wall, effectively avoiding the problems of localized stress concentration and copper tube flattening, deformation, or surface scratches that may occur with traditional planar clamps, providing a firm clamp while maximizing the protection of the copper tube's integrity.

[0031] By providing a first clearance groove 411 on the positioning frame 41 and a second clearance groove 431 corresponding to the first clearance groove 411 on the positioning slide plate 43, an interference-free channel is provided for the cutting saw blade 52 of the cutting assembly 50 to complete the cutting action. This design ensures that the cutting saw blade 52 can pass through the clamped copper pipe without obstruction until the entire cutting stroke is completed. It effectively prevents the cutting saw blade 52 from colliding, rubbing, or getting stuck with components such as the positioning block or slide plate, which not only ensures the smooth progress of the cutting process and improves the cut quality, but also protects the cutting saw blade 52 and the equipment itself, extends their service life, and improves operational safety.

[0032] like Figures 2 to 10 As shown, a first baffle 48 is installed on one side of the first positioning block 42, and a second baffle 49 is installed on one side of the second positioning block 44, which is diagonally opposite to the first baffle 48. The first baffle 48 and the second baffle 49 are located between the two positioning slide rods 46 and are both used to block the copper pipe chips generated when the cutting assembly 50 cuts the copper pipe. The width of the first baffle 48 along a third direction is less than or equal to the width of the first positioning block 42 along a third direction, and the width of the second baffle 49 along a third direction is less than or equal to the width of the second positioning block 44 along a third direction. In this embodiment, a waste collection port 11 is provided on the cutting machine table 10 below the first baffle 48 and the second baffle 49. A waste collection conduit 12 is installed at the waste collection port 11, and a waste collection box 13 located in the waste collection conduit 12 is installed inside the cutting machine table 10. When the cutting assembly 50 cuts the copper tube, the cutting chips generated pass through the waste collection port 11 and the waste collection conduit 12 in sequence, and are finally collected in the waste collection box 13.

[0033] In specific implementation, by diagonally setting a first baffle 48 and a second baffle 49 on the first positioning block 42 and the second positioning block 44 adjacent to the cutting area, these two baffles together form a physical barrier that effectively blocks the high-speed flying copper chips generated during the cutting process, preventing these chips from intruding into precision moving parts such as the positioning slide rod 46, the positioning spring 47, and the sliding pair of the positioning slide plate 43. This avoids movement jamming, accelerated wear, and component damage caused by chip accumulation or embedding, significantly improving the long-term operational reliability and service life of the equipment. The baffles confine most of the chips to the vicinity of the cutting area, facilitating effective collection at the waste collection port 11. This helps maintain the cleanliness of the equipment's working area and prevents chips from scattering and interfering with the normal operation of other processes such as feeding and positioning.

[0034] By limiting the width of the first baffle 48 to be less than or equal to the width of the first positioning block 42, and the width of the second baffle 49 to be less than or equal to the width of the second positioning block 44, and ensuring that the first baffle 48 and the second baffle 49 are located between the two positioning slide rods 46, the protective structure is made extremely compact in space. Furthermore, when the first positioning block 42 and the second positioning block 44 position and clamp the copper tube, the first baffle 48 and the second baffle 49 will not interfere with each other's movement.

[0035] like Figures 2 to 5 As shown, each first positioning block 42 has a first through groove 422 that communicates with both ends of it along the first direction, and the first through groove 422 communicates with the first positioning groove 421; each second positioning block 44 has a second through groove 442 that communicates with both ends of it along the first direction, and the second through groove 442 communicates with the second positioning groove 441. The first through groove 422 is used to increase the friction between the first positioning block 42 and the copper tube to be cut, and the second through groove 442 is used to increase the friction between the second positioning block 44 and the copper tube to be cut.

[0036] In practical implementation, by setting the first through groove 422 and the second through groove 442, this structure divides the contact surfaces of the first positioning block 42 and the second positioning block 44 with the copper tube into multiple independent contact areas. When the first positioning block 42 and the second positioning block 44 apply clamping force, the edges of these contact areas separated by the through grooves can more effectively contact the outer wall of the copper tube, thereby significantly increasing the static friction between the positioning block and the copper tube; and preventing the copper tube from axially slipping or circumferentially rotating under the powerful cutting force of the cutting saw blade 52, providing positioning stability assurance for high-precision and high-quality cutting.

[0037] During the cutting process of the copper tube, the friction between the cutting saw blade 52 and the copper tube generates a large amount of heat. The first through groove 422 and the second through groove 442 form airflow channels distributed around the clamping point, significantly increasing the contact area between the positioning block and the air, thereby greatly improving the heat dissipation efficiency. This active heat dissipation mechanism can promptly remove the heat accumulated near the copper tube cutting area, effectively avoiding problems such as softening of the copper tube material, increased burrs on the cut, or even adhesion caused by excessively high local temperatures, ensuring stable cut quality.

[0038] During the cutting operation, the first through groove 422 and the second through groove 442 provide a discharge path for some of the fine copper chips generated. Under the action of gravity, vibration or subsequent airflow, the chips can be discharged downward or to the sides through the through grooves, instead of accumulating in the positioning grooves; this prevents the chips from accumulating on the critical clamping surfaces and avoids inaccurate positioning, reduced clamping force or scratches on the copper tube surface caused by chip interference.

[0039] like Figure 4 and Figure 5As shown, the two first through slots 422 have different heights along the second direction, the two second through slots 442 have different heights along the second direction, and the adjacent first through slots 422 and second through slots 442 have different heights along the second direction.

[0040] In practice, by setting the through slots on the same positioning block to different heights, and creating a staggered arrangement with the through slots on the corresponding positioning blocks, this design ensures that the contact points of all through slots are staggered and three-dimensionally distributed along the entire circumference when clamping the copper tube. This is equivalent to creating multiple anti-slip points on the outer wall of the copper tube that are not on the same circumference, forming a three-dimensional anti-slip net. Compared to having all through slots at the same height, this staggered layout can more effectively resist cutting forces and torques from different directions, greatly enhancing the ability to prevent axial slippage and circumferential rotation of the copper tube, and ensuring absolute stability during the cutting process.

[0041] The staggered slots create an asymmetrical, multi-layered heat dissipation airflow channel around the copper tube clamping area. This structure prevents heat from accumulating at a specific height, allowing air to flow more evenly and fully across the contact area between the copper tube and the positioning block, thus achieving more efficient three-dimensional heat dissipation. This helps to further homogenize the temperature field in the cutting area, effectively preventing changes in the copper tube material properties due to uneven heat dissipation or localized heat accumulation, and providing a superior thermal management solution to ensure stable, high-quality cuts.

[0042] The staggered high and low channel structure creates a more complex chip removal space in the clamping area. When chips are generated, they can be discharged through multiple channels at different heights and in different directions, rather than relying solely on a single horizontal path. This multi-dimensional chip removal design significantly reduces the risk of chips tangling, accumulating, or even clogging within the channels, ensuring smooth chip removal. The staggered contact points distribute the clamping force over a wider and more diverse area on the outer wall of the copper tube, effectively preventing indentations or deformation caused by stress concentration along a single circumference. This design provides extremely secure clamping while maximizing the protection of the copper tube surface, making it particularly suitable for precision copper tube machining where high surface quality is required.

[0043] like Figure 1 and Figure 6 As shown, the feeding assembly 30 includes a feeding rack 31 fixedly installed on the cutting machine table 10, a feeding slide plate 32 slidably connected to the feeding rack 31, and a clamping member 33 for positioning and clamping the copper tube to be cut is installed on the feeding slide plate 32. The feeding slide plate 32 is fitted with a feeding screw 34 arranged along a first direction and rotatably connected to the feeding frame 31. A feeding motor 35 is installed at the end of the feeding frame 31 away from the positioning assembly 40 to drive the feeding screw 34 to rotate around the first direction. In this embodiment, the feeding frame 31 is provided with a bellows cover to cover the feeding screw 34. By providing the bellows cover, external debris or dust is prevented from accumulating on the feeding screw 34, ensuring smooth operation of the feeding screw 34.

[0044] In practice, the feeding motor 35 drives the feeding screw 34 to rotate in a first direction, which in turn drives the feeding slide plate 32 and clamping member 33, which cooperate with the feeding screw 34, to perform precise linear motion in the first direction. This screw transmission mechanism converts the rotational motion of the motor into the precise linear displacement of the slide plate, achieving precise control of the feeding stroke. This ensures that the copper tube to be cut can be accurately conveyed to the cutting station set by the positioning component 40, providing a reliable feeding guarantee for the fully automated cutting process. The feeding component 30, the positioning component 40, and the cutting component 50 work together to form a complete automated cutting system. It realizes full automation from feeding, conveying, positioning to cutting, significantly reducing manual intervention, greatly improving production efficiency, and is suitable for batch continuous operation. It also effectively reduces quality fluctuations and safety risks caused by improper manual operation.

[0045] like Figure 1 , Figure 6 and Figure 7 As shown, the clamping member 33 includes a clamping frame 331 fixedly mounted on the loading slide plate 32. A first clamping block 332 is fixedly connected to the clamping frame 331, and a clamping slide plate 333 is slidably connected to the clamping frame 331. A second clamping block 334 corresponding to the first clamping block 332 is fixedly connected to the clamping slide plate 333. A clamping cylinder 335 is mounted on the clamping frame 331 to drive the second clamping block 334 to move towards or away from the first clamping block 332. In this embodiment, the first clamping block 332 has an arc-shaped first clamping groove 3321, and the second clamping block 334 has an arc-shaped second clamping groove 3341.

[0046] In practice, the clamping cylinder 335 drives the second clamping block 334 to open and close relative to the fixed first clamping block 332, achieving active clamping and release of the copper tube to be cut. This structure ensures that the copper tube is firmly gripped during the feeding slide plate 32, effectively preventing slippage or positional displacement caused by acceleration, deceleration, or vibration. When the copper tube is delivered to the cutting station, the clamping component 33 can precisely release, making room for the precise positioning and clamping of the positioning component 40, thus ensuring smooth and precise connection between the two steps from feeding to positioning. Integrating the clamping cylinder 335, clamping slide plate 333, and clamping block onto the clamping frame 331 and mounting it as a whole on the feeding slide plate 32 makes the structure of the clamping component 33 compact and the power source centralized. This layout optimizes the space utilization of the equipment, avoids complex transmission mechanisms, makes maintenance more convenient, and also ensures efficient transmission of driving force and rapid response of actions.

[0047] like Figure 1 and Figure 8 As shown, the cutting assembly 50 includes a cutting frame 51 hinged to the cutting machine table 10. One end of the cutting frame 51 is rotatably connected to a cutting saw blade 52 disposed adjacent to the positioning assembly 40. A cutting motor 53 is mounted on the cutting frame 51 for driving the cutting saw blade 52 to rotate around a first direction. The other end of the cutting frame 51 is hinged to a cutting cylinder 54 that is hinged to the cutting machine base 10. The cutting cylinder 54 is used to drive the cutting frame 51 to swing, so that the cutting saw blade 52 moves in a direction closer to or away from the positioning component 40. In this embodiment, a limiting plate 55 is hinged on the cutting machine base 10, and a limiting rod 56 is hinged on the cutting frame and arranged adjacent to the cutting cylinder 54. The limiting rod 56 slides on the limiting plate 55, and two limiting rings 57 are threadedly connected to the limiting rod 56. The limiting rings 57 are used to limit the extension and retraction stroke of the cutting cylinder 54.

[0048] In practice, the cutting cylinder 54 drives the cutting frame 51 to swing around its hinge point with the cutting machine table 10, thereby causing the cutting saw blade 52 to move closer to or further away from the copper tube in the positioning assembly 40 along an arc-shaped trajectory. This swing-type feeding method is more compact and has a simpler and more reliable transmission compared to linear feeding. The cutting motor 53 drives the cutting saw blade 52 to rotate at high speed, ensuring sufficient cutting linear speed, while the thrust provided by the cutting cylinder 54 ensures smooth and powerful cutting feed, together achieving efficient and reliable cutting action. The stroke limiting assembly, consisting of a limiting plate 55, a limiting rod 56, and two limiting rings 57, achieves precise mechanical limiting of the extension and retraction stroke of the cutting cylinder 54. The limiting rod 56 slides in the limiting plate 55 as the cutting frame 51 swings. By adjusting the threaded position of the two limiting rings 57 on the limiting rod 56, the end position (i.e., cutting depth) of the cutting saw blade 52 in the feed stroke and the start position of the return stroke can be precisely set. This design ensures that the cutting depth of the saw blade 52 is consistent with each cut, effectively preventing quality problems such as overcutting (damaging the opposite pipe wall or positioning component 40) or insufficient cutting depth (the copper pipe is not completely cut off), fundamentally guaranteeing the stability of the cut quality and the product qualification rate.

[0049] This invention also provides a method for cutting copper tubes, applied to the aforementioned automatic copper tube cutting equipment, such as... Figure 11 As shown, it includes: Step S1: The copper tube to be cut is conveyed to the positioning component 40 along the first direction by the feeding component 30, so that the copper tube contacts the two first positioning blocks 42 and the area of ​​the copper tube to be cut is located between the two first positioning blocks 42. Step S2: The positioning cylinder 45 drives the positioning slide plate 43 to move along a third direction, so that the second positioning block 44 moves in a direction close to the first positioning block 42, and the two second positioning blocks 44 position and press the copper tube to be cut against the two first positioning blocks 42. Step S3: The copper pipe area located between the two first positioning blocks 42 is automatically cut by the cutting component 50 to obtain a copper pipe segment of predetermined length.

[0050] It should be noted that this method achieves fully automated operation of copper tube cutting through the automated connection of three steps: feeding, positioning, and cutting. Compared with traditional manual operation, this method not only significantly reduces labor intensity but also effectively avoids dimensional errors or quality fluctuations caused by human factors. It is particularly suitable for large-scale continuous production scenarios, significantly improving production efficiency and product consistency. In step S1, by bringing the copper tube into contact with two first positioning blocks 42 and combining the precise positioning of the feeding component 30, it is ensured that the area to be cut for each section of copper tube is precisely located between the two first positioning blocks 42. In step S2, the two second positioning blocks 44 simultaneously press the copper tube onto the two first positioning blocks 42, positioning and clamping the copper tube. This creates a symmetrical and uniform clamping force on both sides of the area to be cut, eliminating vibration or twisting of the copper tube caused by unilateral or asymmetrical clamping. This creates extremely stable working conditions for the cutting component 50, which is the core guarantee for obtaining a smooth, burr-free cut. In step S3, the cutting component 50 cuts the copper tube based on precise positioning, effectively ensuring the accuracy of the copper tube cutting length and the stability of the copper tube cut quality, and avoiding problems such as slanted cuts, burrs or cuts to the tube wall during the cutting operation.

[0051] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic copper pipe cutting device, characterized in that, It includes a cutting machine table (10) and a control box (20), wherein the cutting machine table (10) is equipped with a feeding assembly (30), a positioning assembly (40) and a cutting assembly (50); The positioning component (40) includes a positioning frame (41), on which two first positioning blocks (42) are spaced apart and arranged along a first direction, and the two first positioning blocks (42) are at the same height along a second direction; the positioning frame (41) is slidably connected to a positioning slide plate (43), on which two second positioning blocks (44) are spaced apart and correspond one-to-one with the two first positioning blocks (42); the positioning frame (41) is also equipped with a positioning cylinder (45) for driving the positioning slide plate (43) to move along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; The first positioning block (42) and the second positioning block (44) are both used to cut and position the copper tube to be cut conveyed by the feeding component (30) along the first direction. The cutting component (50) is used to automatically cut the copper tube area located between the two first positioning blocks (42).

2. The automatic copper tube cutting equipment according to claim 1, characterized in that, The positioning frame (41) is equipped with two positioning slide rods (46) arranged along a third direction. The height of the positioning slide rods (46) along the second direction is lower than the height of the first positioning block (42) along the second direction. Each positioning slide rod (46) is fitted with a positioning spring (47). One end of the positioning spring (47) abuts against the positioning slide plate (43), and the other end of the positioning spring (47) abuts against the positioning frame (41).

3. The automatic copper tube cutting equipment according to claim 2, characterized in that, Each of the first positioning blocks (42) is provided with a first positioning groove (421), and each of the second positioning blocks (44) is provided with a second positioning groove (441) corresponding to the first positioning groove (421). The first positioning groove (421) and the second positioning groove (441) are both used to position and clamp the outer wall of the copper tube to be cut. The positioning frame (41) is provided with a first clearance groove (411) located between two first positioning blocks (42), and the positioning slide plate (43) is provided with a second clearance groove (431) located between two second positioning blocks (44). The first clearance groove (411) and the second clearance groove (431) are both used to provide clearance space for the cutting operation of the cutting saw blade (52) of the cutting assembly (50).

4. The automatic copper tube cutting equipment according to claim 3, characterized in that, A first baffle (48) is installed on one side of the first positioning block (42), and a second baffle (49) is installed on one side of the second positioning block (44) which is diagonally opposite to the first baffle (48). The first baffle (48) and the second baffle (49) are located between the two positioning slide rods (46) and are both used to block the copper pipe chips generated when the cutting assembly (50) cuts the copper pipe. The width of the first baffle (48) along the third direction is less than or equal to the width of the first positioning block (42) along the third direction, and the width of the second baffle (49) along the third direction is less than or equal to the width of the second positioning block (44) along the third direction.

5. The automatic copper tube cutting equipment according to claim 3 or 4, characterized in that, Each of the first positioning blocks (42) has a first through groove (422) that communicates with both ends of it along the first direction, and the first through groove (422) communicates with the first positioning groove (421); each of the second positioning blocks (44) has a second through groove (442) that communicates with both ends of it along the first direction, and the second through groove (442) communicates with the second positioning groove (441); The first through groove (422) is used to increase the friction between the first positioning block (42) and the copper tube to be cut, and the second through groove (442) is used to increase the friction between the second positioning block (44) and the copper tube to be cut.

6. The automatic copper tube cutting equipment according to claim 5, characterized in that, The two first through slots (422) have different heights along the second direction, the two second through slots (442) have different heights along the second direction, and the adjacent first through slots (422) and second through slots (442) have different heights along the second direction.

7. The automatic copper tube cutting equipment according to claim 1, characterized in that, The feeding assembly (30) includes a feeding rack (31) fixedly installed on the cutting machine table (10), the feeding rack (31) is slidably connected to a feeding slide plate (32), and a clamping member (33) for positioning and clamping the copper tube to be cut is installed on the feeding slide plate (32). The feeding slide plate (32) is provided with a feeding screw (34) arranged along the first direction and rotatably connected to the feeding frame (31). The feeding frame (31) is equipped with a feeding motor (35) for driving the feeding screw (34) to rotate around the first direction at one end away from the positioning component (40).

8. The automatic copper tube cutting equipment according to claim 7, characterized in that, The clamping member (33) includes a clamping frame (331) fixedly installed on the loading slide plate (32). The clamping frame (331) is fixedly connected to a first clamping block (332). The clamping frame (331) is slidably connected to a clamping slide plate (333). A second clamping block (334) corresponding to the first clamping block (332) is fixedly connected to the clamping slide plate (333). A clamping cylinder (335) is installed on the clamping frame (331) for driving the second clamping block (334) to move in a direction close to or away from the first clamping block (332).

9. The automatic copper tube cutting equipment according to claim 1, characterized in that, The cutting assembly (50) includes a cutting frame (51) hinged to the cutting machine table (10), one end of the cutting frame (51) is rotatably connected to a cutting saw blade (52) disposed adjacent to the positioning assembly (40), and a cutting motor (53) is mounted on the cutting frame (51) for driving the cutting saw blade (52) to rotate around a first direction. The other end of the cutting frame (51) is hinged to a cutting cylinder (54) that is hinged to the cutting machine table (10). The cutting cylinder (54) is used to drive the cutting frame (51) to swing so that the cutting saw blade (52) moves in a direction closer to or away from the positioning component (40).

10. A method for cutting copper tubes, characterized in that, The automatic copper tube cutting equipment according to any one of claims 1 to 9 comprises: Step S1: The copper tube to be cut is conveyed to the positioning component (40) along the first direction by the feeding component (30), so that the copper tube abuts against the two first positioning blocks (42) and the area of ​​the copper tube to be cut is located between the two first positioning blocks (42); Step S2: The positioning cylinder (45) drives the positioning slide plate (43) to move along a third direction, so that the second positioning block (44) moves in a direction close to the first positioning block (42), and the two second positioning blocks (44) position and press the copper tube to be cut against the two first positioning blocks (42). Step S3: The copper pipe area located between the two first positioning blocks (42) is automatically cut by the cutting component (50) to obtain a copper pipe segment of a predetermined length.

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