Pipe cutting device based on micro-channel aluminum alloy porous flat pipe production
By introducing a torque coordinating seat and switching components into the cutting device, the cutting torque is balanced, solving the problem of torque imbalance in existing cutting devices and achieving stable cutting and efficient adaptation to cutting aluminum alloy multi-hole flat tubes of different widths.
Patent Information
- Application Number
- CN202610097726.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-24
- Publication Date
- 2026-03-13
AI Technical Summary
Existing tube cutting devices are prone to torque imbalance when cutting microchannel aluminum alloy porous flat tubes, leading to equipment damage and poor cutting accuracy, and they are difficult to adapt to torque changes of different widths.
A torque coordination seat and switching assembly are introduced into the cutting device. The position of the abutment sleeve and support rod is adjusted by the motor and gear system. Together with the push head and push disk, additional rotational resistance is provided to balance the cutting torque. The position adjustment assembly can adapt to aluminum alloy porous flat tubes of different widths.
This technology improves the stability and precision of the cutting process, extends the service life of the equipment, adapts to the cutting needs of multi-hole flat tubes of aluminum alloy with different widths, and improves cutting efficiency.
Smart Images
Figure CN121649476A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of circular saw cutting technology, specifically a tube cutting device based on the production of microchannel aluminum alloy porous flat tubes. Background Technology
[0002] Microchannel aluminum alloy porous flat tubes are thin-walled, porous, flat tubular aluminum profiles with rectangular and circular flow channel shapes. They possess excellent thermal conductivity and good corrosion resistance, and are mainly used in refrigerant heat exchange pipes for condensers and evaporators in automotive, residential, and commercial air conditioning systems. Porous flat tubes have evolved from large-channel to microchannel designs. During the production and processing of microchannel aluminum alloy porous flat tubes, the initial product needs to be cut using a tube-cutting device to adapt to the application requirements of different scenarios. However, existing tube-cutting devices have the following problems in use: When cutting microchannel aluminum alloy porous flat tubes, tube cutting devices typically cut multiple tubes simultaneously to improve cutting efficiency. During this process, as cutting continues, the cutting blade gradually moves to the middle area of adjacent tubes. Due to the influence of the outer arc surface of the tube, the cutting resistance changes, leading to variations in cutting torque. Existing tube cutting devices are not convenient for compensating and adjusting the cutting torque, resulting in frequent torque imbalances, which can easily cause equipment damage and poor cutting accuracy. Furthermore, the degree of torque variation varies when cutting microchannel aluminum alloy porous flat tubes of different widths. Ensuring diverse torque compensation is also a crucial factor in guaranteeing cutting results.
[0003] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention
[0004] The purpose of this invention is to provide a tube cutting device based on the production of microchannel aluminum alloy porous flat tubes, so as to solve the problems mentioned in the background art. The technical solution of this invention provides a solution that is significantly different from the existing technology, which is too simplistic.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a tube cutting device based on the production of microchannel aluminum alloy porous flat tubes, comprising a base, a mounting frame fixed on the top of the base, a cutting frame mounted on the mounting frame via a longitudinal guide rail, a cutting seat mounted on the cutting frame via a vertical guide rail, and a circular saw cutting blade mounted inside the cutting seat via a motor; It also includes a torque coordinating seat, which is fixed inside the cavity of the cutting seat. The torque coordinating seat is sleeved on the rotating shaft of the circular saw cutting blade. A mounting seat is slidably installed in the cavity of the inner wall of the torque coordinating seat by means of a spring. An abutment sleeve and a support rod are respectively arranged from the outside to the inside in the inner cavity. A gear ring is rotatably installed embedded in the torque coordinating seat. A gear controlled by a motor is meshed on the outside of the gear ring. A switching component, disposed between the mounting base and the toothed ring, is used to switch the positions of the abutment sleeve and the support rod; A push sleeve is fixed to the outer end of the mounting base. A push disk is fixedly fitted on the push sleeve. A push head is provided at the outer end of the push disk. The push head is installed on the inner side of the toothed ring through a position adjustment component.
[0006] Preferably, a ball bearing is embedded in the inner end of the support rod, and the initial position of the inner end of the support rod is set further inward than that of the contact sleeve.
[0007] Preferably, the inner end of the abutment sleeve is designed with an arc surface structure, the inner end of the abutment sleeve is covered with a rubber pad, and the abutment sleeve and the mounting seat are distributed at equal angles within the torque coordinating seat.
[0008] Preferably, the switching assembly includes a bevel roller, which is disposed through the mounting base and the push sleeve. The outer end of the bevel roller meshes with the side of the toothed ring. The inner end of the bevel roller is fitted with a connecting plate that is slidably limited. The connecting plate is rotatably mounted in the mounting base. The inner end of the connecting plate is connected to the outer end of the contact sleeve via an elastic telescopic rod. A central sleeve is provided on the inner side of the connecting plate. The central sleeve is fixed in the mounting base. A central rod is embedded in the central sleeve. The central rod slides through the contact sleeve and is connected to the outer end of the support rod.
[0009] Preferably, the central rod rotates along with the abutment sleeve, causing the support rod to rotate, and the central rod, support rod, and central sleeve share a common central axis.
[0010] Preferably, both the center rod and the outer side of the contact sleeve are fixed with guide heads, which are disposed in guide grooves, and the guide grooves are respectively opened at the side walls of the cavity of the center sleeve and the mounting seat.
[0011] Preferably, the guide head slides in contact with the guide groove, the guide groove is distributed in a spiral structure, and the guide head and guide groove drive the contact sleeve to move in the opposite direction to the support rod.
[0012] Preferably, the inner end of the push head is designed with an arc-shaped structure, the movement trajectory of the push head coincides with the push disk, and the movement trajectory of the push head intersects with the push sleeve.
[0013] Preferably, the position adjustment assembly includes an adjustment head, which is fixed to the outside of the push head. The adjustment head is slidably disposed in the cavity of the inner wall of the gear ring by a spring. A piston rod is fixed to one side of the adjustment head. The piston rod is slidably disposed in the oil pipe. The oil pipe is fixed in the cavity of the inner wall of the gear ring. The oil pipe is connected to an oil chamber through a hose. The oil chamber is opened in the torque coordinating seat. A piston plate is slidably disposed in the oil chamber. An electric push rod is fixed to the outside of the piston plate.
[0014] Preferably, both the oil pipe and the piston rod are arc-shaped structures, and the movement pattern of the piston rod and the adjusting head is consistent with the curvature of the gear ring.
[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention provides a torque coordinating seat on the outside of the rotating shaft of a circular saw cutting blade. On one hand, multiple circumferentially distributed support rods, in conjunction with ball bearings, apply a circumferential positioning function to the rotating shaft, which helps to improve its stable cutting effect. On the other hand, when cutting to two adjacent aluminum alloy porous flat tube areas, the cutting resistance changes, causing the torque of the rotating shaft to change. At this time, the motor and gear drive the gear ring to rotate, and the switching component synchronously adjusts the positions of multiple abutment sleeves and support rods, so that the abutment sleeves are close to the rotating shaft. As the gear ring continues to rotate, the push head and push disk can drive the abutment sleeve in the mounting seat to contact the outside of the rotating shaft, providing an additional rotational resistance, ensuring the torque of the rotating shaft is stable, and effectively avoiding the adverse effects caused by frequent torque changes. At the same time, the switching and abutment resistance application effects can be completed by a single motor, which greatly improves the structural stability and feasibility in a small space and rotating structure. 2. According to the present invention, the initial position of the push head is adjusted by the position adjustment component according to the aluminum alloy porous flat tube of different widths, so as to ensure that the gear and gear ring rotate at a constant angle. The push head at different positions can cooperate with the mounting base and the contact sleeve to apply a corresponding resistance to the rotating shaft in the corresponding stroke. This invention is suitable for aluminum alloy porous flat tubes of different widths, so that the rotating shaft can maintain a stable torque, which helps to improve cutting efficiency and service life. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is a schematic diagram of the internal side structure of the torque coordinating seat of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 5This is a schematic diagram of the side distribution structure of the push head of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 7 This is a schematic diagram of the internal structure of the oil pipe and oil cavity of the present invention.
[0017] In the diagram: 1. Base; 2. Mounting bracket; 3. Cutting bracket; 4. Cutting seat; 5. Circular saw cutting blade; 6. Torque coordinating seat; 7. Mounting seat; 8. Contact sleeve; 9. Support rod; 10. Gear ring; 11. Gear; 121. Bevel roller; 122. Connecting disc; 123. Elastic telescopic rod; 124. Center rod; 125. Center sleeve; 126. Guide head; 127. Guide groove; 13. Pushing sleeve; 14. Pushing disc; 15. Pushing head; 161. Adjusting head; 162. Piston rod; 163. Oil pipe; 164. Oil chamber; 165. Piston plate; 166. Electric push rod. Detailed Implementation
[0018] 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. 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.
[0019] Please see Figures 1-7 The present invention provides a technical solution: a tube cutting device based on the production of microchannel aluminum alloy porous flat tubes, including a base 1, a mounting frame 2 fixed on the top of the base 1, a cutting frame 3 mounted on the mounting frame 2 via a longitudinal guide rail, a cutting seat 4 mounted on the cutting frame 3 via a vertical guide rail, and a circular saw cutting blade 5 mounted inside the cutting seat 4 via a motor. Multiple aluminum alloy porous flat tubes are fixed side by side on the base 1. The circular saw cutting blade 5 is driven to move downward and longitudinally by the longitudinal and vertical rails in conjunction with the cutting frame 3 and the cutting seat 4. The rotation of the circular saw cutting blade 5 cuts the aluminum alloy porous flat tubes.
[0020] In one embodiment of the present invention, the torque coordinating seat 6 is fixed inside the cavity of the cutting seat 4. The torque coordinating seat 6 is sleeved on the rotating shaft of the circular saw cutting blade 5. The mounting seat 7 is slidably installed in the cavity of the inner wall of the torque coordinating seat 6 by means of a spring. The inner cavity is provided with an abutment sleeve 8 and a support rod 9 from the outside to the inside. A gear ring 10 is rotatably installed embedded in the torque coordinating seat 6. A gear 11 controlled by a motor is meshed on the outside of the gear ring 10. The inner end of the abutment sleeve 8 is designed with an arc surface structure. A rubber pad is laid on the inner end of the abutment sleeve 8. The abutment sleeve 8 and the mounting seat 7 are distributed at equal angles in the torque coordinating seat 6. In one embodiment of the present invention, a switching component is disposed between the mounting base 7 and the toothed ring 10 for switching the positions of the abutment sleeve 8 and the support rod 9; a ball bearing is embedded in the inner end of the support rod 9, and the initial position of the inner end of the support rod 9 is set further inward than that of the abutment sleeve 8; In one embodiment of the present invention, the switching assembly includes a bevel roller 121, which is disposed through the mounting base 7 and the push sleeve 13. The outer end of the bevel roller 121 meshes with the side of the toothed ring 10. A connecting plate 122 is slidably sleeved on the inner end of the bevel roller 121. The connecting plate 122 is rotatably mounted in the mounting base 7. The inner end of the connecting plate 122 is connected to the outer end of the abutment sleeve 8 through an elastic telescopic rod 123. A central sleeve 125 is provided on the inner side of the connecting plate 122. The central sleeve 125 is fixed in the mounting base 7. A central rod 124 is embedded in the central sleeve 125. 4. The limiting sliding penetrates the contact sleeve 8 and connects to the outer end of the support rod 9; the central rod 124 follows the rotation of the contact sleeve 8, causing the support rod 9 to rotate; the central rod 124, the support rod 9, and the central sleeve 125 share a common central axis; guide heads 126 are fixed on the outer sides of the central rod 124 and the contact sleeve 8, and the guide heads 126 are set in the guide grooves 127, which are respectively opened at the side walls of the cavity of the central sleeve 125 and the mounting seat 7; the guide heads 126 slide in contact with the guide grooves 127, which are distributed in a spiral structure; the guide heads 126 and the guide grooves 127 drive the contact sleeve 8 and the support rod 9 to move in opposite directions; The ball bearings inside the support rod 9 contact the rotating shaft of the circular saw cutting blade 5, providing stable positioning support for the rotating shaft. When the circular saw cutting blade 5 moves from one aluminum alloy porous flat tube to another, the change in resistance causes a change in the torque of the rotating shaft due to the gap between the aluminum alloy porous flat tubes. At this time, the motor drives the gear 11 to rotate, which in turn drives the gear ring 10 to rotate, which in turn drives the bevel roller 121 to rotate. The bevel roller 121 drives the connecting plate 122 to rotate, and the connecting plate 122 drives the contact sleeve 8 to rotate through the elastic telescopic rod 123. The guide head 126 on the outside of the contact sleeve 8 slides in the guide groove 127 of the spiral structure, allowing the contact sleeve 8 to move inward during rotation. At the same time, the contact sleeve 8 drives the central rod 124 to rotate, and the guide head 126 on the outside of the central rod 124 slides in the guide groove 127 of the spiral structure, which can synchronously drive the central rod 124 and the support rod 9 to move outward, so that the support rod 9 and the contact sleeve 8 exchange positions.
[0021] In one embodiment of the present invention, the push sleeve 13 is fixed to the outer end of the mounting base 7, and the push disk 14 is fixedly sleeved on the push sleeve 13. The outer end of the push disk 14 is provided with a push head 15. The push head 15 is installed on the inner side of the toothed ring 10 through a position adjustment component. The inner end of the push head 15 is designed with an arc-shaped structure. The movement trajectory of the push head 15 coincides with the push disk 14, and the movement trajectory of the push head 15 intersects with the push sleeve 13. The rotation of the toothed ring 10 drives the push head 15 to rotate. The push head 15 contacts the push disk 14, pushing the push disk 14 and the push sleeve 13 to move inward, which in turn pushes the mounting base 7 to move inward. By contacting the inner end of the contact sleeve 8 with the rotating shaft, it provides an additional resistance to the rotating shaft, balancing the torque imbalance when the rotating shaft reaches the area between the two aluminum alloy porous flat tubes, and ensuring the stable rotation of the circular saw cutting blade 5.
[0022] In one embodiment of the present invention, the position adjustment assembly includes an adjustment head 161, which is fixed to the outside of the push head 15. The adjustment head 161 is slidably disposed in the cavity of the inner wall of the gear ring 10 by a spring. A piston rod 162 is fixed to one side of the adjustment head 161. The piston rod 162 is slidably disposed in the oil pipe 163, which is fixed in the cavity of the inner wall of the gear ring 10. The oil pipe 163 is connected to an oil chamber 164 through a hose. The oil chamber 164 is opened in the torque coordinating seat 6. A piston plate 165 is slidably disposed in the oil chamber 164. An electric push rod 166 is fixed to the outside of the piston plate 165. Both the oil pipe 163 and the piston rod 162 are arc-shaped structures, and the movement pattern of the piston rod 162 and the adjustment head 161 is consistent with the curvature of the gear ring 10. The initial position of the push head 15 is adjusted according to the width of the aluminum alloy porous flat tube to be cut. The piston plate 165 is pushed to move in the oil chamber 164 by the electric push rod 166. Then, the piston rod 162 is pushed to move by the hose and the oil pipe 163. The piston rod 162 drives the push head 15 to move by the adjusting head 161, and the initial positions of multiple push heads 15 are adjusted simultaneously.
[0023] Working principle: First, adjust the initial position of the push head 15 according to the width of the aluminum alloy porous flat tube to be cut. Then, push the piston plate 165 to move in the oil chamber 164 through the electric push rod 166. Then, push the piston rod 162 to move through the hose and oil pipe 163. The piston rod 162 drives the push head 15 to move through the adjusting head 161. Simultaneously adjust the initial position of multiple push heads 15 so that when the toothed ring 10 rotates later, the push head 15 can contact the push plate 14 in advance. Multiple porous aluminum alloy tubes are fixed side-by-side on the base 1. A longitudinal and vertical track, along with a cutting frame 3 and a cutting seat 4, drives the circular saw cutting blade 5 downwards and longitudinally. The rotation of the circular saw cutting blade 5 cuts the porous aluminum alloy tubes. Ball bearings within the support rod 9 contact the rotating shaft of the circular saw cutting blade 5, providing stable positioning support. When the circular saw cutting blade 5 moves from one porous aluminum alloy tube to another, changes in resistance cause variations in the gap between the tubes, leading to changes in the torque of the rotating shaft. At this point, the motor drives the gear 11 to rotate, and the gear... Wheel 11 drives toothed ring 10 to rotate, which in turn drives bevel roller 121 to rotate. Bevel roller 121 drives connecting disc 122 to rotate. Connecting disc 122 drives contact sleeve 8 to rotate via elastic telescopic rod 123. The guide head 126 on the outside of contact sleeve 8 slides in the guide groove 127 of the spiral structure, so that contact sleeve 8 can move inward during rotation. At the same time, contact sleeve 8 drives center rod 124 to rotate. The guide head 126 on the outside of center rod 124 slides in the guide groove 127 of the spiral structure, which can synchronously drive center rod 124 and support rod 9 to move outward, so that support rod 9 and contact sleeve 8 exchange positions. Simultaneously, the rotation of the toothed ring 10 drives the push head 15 to rotate. The push head 15 contacts the push disk 14, pushing the push disk 14 and the push sleeve 13 to move inward, thereby pushing the mounting base 7 to move inward. By contacting the inner end of the contact sleeve 8 with the rotating shaft, it provides an additional resistance to the rotating shaft, balancing the torque imbalance when the rotating shaft reaches the area between the two aluminum alloy porous flat tubes, ensuring the stable rotation of the circular saw cutting blade 5. After the transition of the cutting area is completed, the toothed ring 10 is driven to rotate in the reverse direction, so that all components are reset, which is convenient for the next operation.
[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A tube cutting device based on the production of microchannel aluminum alloy porous flat tubes, comprising a base (1), a mounting frame (2) fixed on the top of the base (1), a cutting frame (3) mounted on the mounting frame (2) via a longitudinal guide rail, a cutting seat (4) mounted on the cutting frame (3) via a vertical guide rail, and a circular saw cutting blade (5) mounted inside the cutting seat (4) via a motor. Its features are: It also includes a torque coordinating seat (6), which is fixed in the cavity inside the cutting seat (4). The torque coordinating seat (6) is sleeved on the rotating shaft of the circular saw cutting blade (5). A mounting seat (7) is slidably installed in the cavity inside the torque coordinating seat (6) by a spring. An abutment sleeve (8) and a support rod (9) are respectively provided from the outside to the inside in the inner cavity. A gear ring (10) is embedded and rotatably installed in the torque coordinating seat (6). A motor-controlled gear (11) meshes on the outside of the gear ring (10). A switching assembly is disposed between the mounting base (7) and the toothed ring (10) for switching the positions of the abutment sleeve (8) and the support rod (9); Push sleeve (13), the push sleeve (13) is fixed to the outer end of the mounting base (7), the push sleeve (13) is fixedly fitted with a push disk (14), the outer end of the push disk (14) is provided with a push head (15), the push head (15) is installed on the inner side of the toothed ring (10) through a position adjustment component.
2. The tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 1, characterized in that: The inner end of the support rod (9) is embedded with a ball bearing, and the initial position of the inner end of the support rod (9) is set further inward than that of the contact sleeve (8).
3. The tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 2, characterized in that: The inner end of the abutment sleeve (8) is designed with an arc surface structure, and a rubber pad is laid on the inner end of the abutment sleeve (8). The abutment sleeve (8) and the mounting seat (7) are distributed at equal angles within the torque coordination seat (6).
4. The tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 3, characterized in that: The switching assembly includes a bevel roller (121), which is disposed through the mounting base (7) and the push sleeve (13). The outer end of the bevel roller (121) meshes with the side of the toothed ring (10). The inner end of the bevel roller (121) is fitted with a connecting plate (122) which is rotatably mounted in the mounting base (7). The inner end of the connecting plate (122) is connected to the outer end of the contact sleeve (8) through an elastic telescopic rod (123). A center sleeve (125) is provided on the inner side of the connecting plate (122). The center sleeve (125) is fixed in the mounting base (7). A center rod (124) is embedded in the center sleeve (125). The center rod (124) slides through the contact sleeve (8) and is connected to the outer end of the support rod (9).
5. A tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 4, characterized in that: The central rod (124) rotates along with the abutment sleeve (8), causing the support rod (9) to rotate. The central rod (124), the support rod (9), and the central sleeve (125) share a common central axis.
6. The tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 5, characterized in that: The outer sides of the center rod (124) and the contact sleeve (8) are both fixed with guide heads (126). The guide heads (126) are set in the guide groove (127). The guide groove (127) is respectively opened at the side wall of the cavity of the center sleeve (125) and the mounting seat (7).
7. A tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 6, characterized in that: The guide head (126) slides in the guide groove (127), which is distributed in a spiral structure. The guide head (126) and the guide groove (127) drive the contact sleeve (8) and the support rod (9) to move in opposite directions.
8. A tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 7, characterized in that: The inner end of the push head (15) is designed with an arc-shaped structure. The movement trajectory of the push head (15) coincides with that of the push disk (14), and the movement trajectory of the push head (15) intersects with that of the push sleeve (13).
9. A tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 8, characterized in that: The position adjustment assembly includes an adjustment head (161), which is fixed to the outside of the push head (15). The adjustment head (161) is slidably disposed in the cavity of the inner wall of the gear ring (10) by a spring. A piston rod (162) is fixed to one side of the adjustment head (161). The piston rod (162) is slidably disposed in the oil pipe (163). The oil pipe (163) is fixed in the cavity of the inner wall of the gear ring (10). The oil pipe (163) is connected to an oil chamber (164) through a hose. The oil chamber (164) is opened in the torque coordinating seat (6). A piston plate (165) is slidably disposed in the oil chamber (164). An electric push rod (166) is fixed to the outside of the piston plate (165).
10. A tube cutting device based on the production of microchannel aluminum alloy porous flat tubes according to claim 9, characterized in that: The oil pipe (163) and piston rod (162) are both arc-shaped structures, and the movement pattern of the piston rod (162) and adjusting head (161) is consistent with the curvature of the toothed ring (10).