A cutting device for flat tube processing

Abstract

The application provides a cutting device for flat pipe processing and belongs to the technical field of cutting. The cutting device comprises a cutting table, and one end of the cutting table is fixedly installed with an inclined plate. In the process that the dust suction bin driven by the electric sliding rail goes down, the cutting tool has not contacted the flat pipe, the elastic dust suction head with a silica gel material and a multi-section splicing structure on the bottom of both sides has been firstly attached to the surface of the pipe, and is deformed according to different cross-section contours such as rectangle and ellipse to form a local closed cavity with a gap controlled within 0.1 mm. At the same time, the fan continuously establishes negative pressure in the dust storage box, so that the inside of the dust suction bin forms a high-efficiency negative pressure sealing field at the starting moment of cutting, and the dust and metal scraps are immediately sucked as soon as they are generated, the initial dust diffusion problem caused by the prior cutting and subsequent suction or the fixed suction port of the traditional equipment is effectively avoided, the air quality in the workshop is greatly improved, the health of the operators is ensured, and the subsequent cleaning process is reduced.

Description

Technical Field

[0001] This invention relates to the field of cutting technology, and in particular to a cutting device for processing flat tubes. Background Technology

[0002] In the industrial processing of flat tubes (such as rectangular, elliptical, and other non-circular cross-section thin-walled metal tubes), high-precision cutting is a prerequisite for ensuring reliable assembly and sealing performance in key components such as automotive heat exchangers, new energy battery liquid cooling plates, and air conditioning refrigeration systems. However, due to the characteristics of flat tubes, such as small wall thickness (often less than 1mm), large width-to-thickness ratio, and weak structural rigidity, they are prone to defects such as edge collapse, warping, end face tilting, and even internal cavity crushing during traditional cutting processes due to improper clamping methods, insufficient support, or vibration interference. These defects seriously affect the reliability of subsequent tube expansion, welding, or fluid sealing.

[0003] The positioning mechanisms of existing cutting equipment mostly adopt the "single-sided extrusion" or "two-way clamping" mode, and lack precise linkage with the cutting action. The clamping action lags behind the cutting blade feed, or the clamping force is concentrated in a local area, which makes thin-walled flat tubes prone to collapse and cross-sectional displacement under the action of cutting stress. This is especially true for porous microchannel flat tubes, which are prone to internal channel blockage or structural deformation. Although some equipment has tried to set up linkage clamping structures, they mostly rely on multiple power sources to drive, resulting in complex structures and poor coordination accuracy. They cannot adaptively adjust the support force according to the flat tube specifications, making it difficult to balance positioning stability and tube protection requirements.

[0004] Metal shavings and dust generated during the cutting process not only pollute the production environment and threaten the health of operators, but also easily adhere to the cutting edge or become embedded in equipment gaps, exacerbating tool wear and mechanical jamming. Existing dust removal methods mostly consist of independently installed dust collection devices or open baffle protection: the former suffers from low dust collection efficiency because the suction port and cutting area lack a sealed fit, making negative pressure suction prone to leakage; the latter cannot prevent the diffusion of fine dust, and the collected dust is often mixed and stored, lacking an energy-free initial separation structure, making subsequent cleaning and recycling difficult, increasing maintenance costs and reducing material recycling rates.

[0005] Therefore, this application provides a cutting device for flat tube processing to meet the requirements. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a cutting device for flat tube processing to solve the problems of existing flat tube cutting equipment, such as easy collapse and deformation due to clamping method, asynchronous clamping and cutting, difficulty in adaptive adjustment of support force, poor dust removal and sealing, low dust collection efficiency and lack of effective separation structure, resulting in poor cut quality, rapid equipment wear and high maintenance costs, and difficulty in meeting the high precision and high cleanliness processing requirements of thin-walled and porous flat tubes.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A cutting device for processing flat tubes includes a cutting table, one end of which is fixedly mounted with an inclined plate, and a guide rail is mounted on one side of the top surface. The cutting table also includes a dust removal assembly, a clamping assembly, and an electric slide rail. The dust removal assembly includes a dust collection chamber located above the cutting table, a V-shaped filter element fixedly installed inside the dust collection chamber at its outlet end, and elastic dust collection heads respectively installed on both sides of the bottom of the dust collection chamber. The clamping assembly includes a sliding frame slidably connected to the guide rail and an upper clamping block installed at one end of the sliding frame. The electric slide rail... As the track-driven dust removal component descends, the elastic suction head at the bottom of the suction chamber adapts to fit the pipe, instantly creating a local negative pressure sealing field at the cutting point. This allows for the simultaneous collection of dust and debris at the source, which is then purified by the filter before being discharged. During this descent, the dust removal component synchronously drives the sliding frame and upper clamping block of the clamping component to perform radial expansion motion, forming a centrally symmetrical rigid constraint on the flat pipe. After cutting, the electric slide rail rises, causing the system to reset. The upper clamping block retracts to release the constraint, and the cut flat pipe section automatically falls off under gravity, sliding along the inclined plate into the collection position.

[0008] Optionally, the dust removal assembly further includes a dust storage box fixedly installed on one side of the cutting table, a fan fixedly installed on the top of the dust storage box, and the input end of the fan connected to the conveying pipe.

[0009] Optionally, the input end of the conveying pipe is connected to the dust collection chamber, and a collection groove is provided inside the dust collection chamber below the filter element, and the collection groove is V-shaped.

[0010] Optionally, a sealing block with a weight sensor is fixedly installed below the collection trough by bolts, and a buzzer alarm is fixedly installed on one side of the dust collection chamber.

[0011] Optionally, the filter element includes a primary inertial separation mesh, a secondary electrostatic adsorption layer, and a HEPA filter. The primary inertial separation mesh is made of stainless steel wire mesh and is used to pre-intercept larger metal debris. The secondary electrostatic adsorption layer generates an electrostatic field through a high-voltage electrostatic generator. The primary inertial separation mesh, the secondary electrostatic adsorption layer, and the HEPA filter are all bolted to the outlet end inside the dust collection chamber.

[0012] Optionally, the flexible vacuum head is made of silicone and is designed with a multi-segment splicing structure to adaptively fit the shape of the flat tube cross-section.

[0013] Optionally, the clamping assembly further includes two rotating shafts slidably connected to the dust storage box, with a crossbar fixedly connected to one end of each shaft, the crossbar being connected to the outer wall of the dust collection chamber.

[0014] Optionally, two inclined rods are rotatably connected to the outer walls of one end of each of the two rotating shafts. Two sliding frames are provided, each rotatably connected to one end of one of the two inclined rods, and both sliding frames are slidably connected to the guide rail.

[0015] Optionally, rubber buffer columns are fixedly connected to both sides inside the two sliding frames, and a lateral clamping block is fixedly connected to one side of each rubber buffer column. A bracket is fixedly installed on the top of the two sliding frames, and a hydraulic lifting rod is fixedly installed at the bottom of the bracket. The bottom of the hydraulic lifting rod is connected to the top of the upper clamping block, and the upper clamping block is located inside the sliding frame. A pressure sensor is also installed on the sliding frame.

[0016] Optionally, an electric slider is slidably connected to the electric slide rail, a carriage is fixedly connected to one side of the electric slider, a drive motor is fixedly installed inside the carriage, a cutting tool is splinedly connected to the output end of the drive motor, and the cutting tool is located inside the dust collection chamber. The connection between the cutting tool and the dust collection chamber is a sealed structure. One side of the carriage is fixedly connected to the outer wall of the dust collection chamber, and one side of the bottom of the electric slide rail is connected to the cutting table.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects: In this invention, during the downward movement of the dust collection chamber driven by the electric slide rail, before the cutting blade even contacts the flat tube, the elastic dust collection heads on both sides of its bottom, made of silicone material and with a multi-segment splicing structure, have already adhered to the surface of the tube and adaptively deformed according to different cross-sectional contours such as rectangles and ellipses, forming a locally sealed cavity with a gap controlled within 0.1mm. At the same time, the fan continuously builds negative pressure in the dust storage box, so that a highly efficient negative pressure sealing field is formed inside the dust collection chamber at the moment of cutting. Dust and metal debris are immediately sucked up as soon as they are generated, effectively avoiding the initial dust diffusion problem caused by traditional equipment that cuts before suction or has a fixed suction port, greatly improving the air quality in the workshop, protecting the health of operators, and reducing subsequent cleaning processes.

[0018] Furthermore, the downward movement of the dust collection chamber is transmitted to the rotating shaft connected to the dust storage box via the crossbar, causing the diagonal bar to swing around the shaft, converting the vertical displacement into horizontal thrust, and pushing the two sliding frames to move in opposite directions along the guide rail. This allows the lateral clamping blocks to be simultaneously tightened from both ends of the flat tube, effectively avoiding the defects of traditional external pressure clamping that easily leads to the collapse and crushing of thin-walled flat tubes, forming a centered and balanced lateral constraint. At the same time, the hydraulic lifting rod at the top of the sliding frame synchronously drives the upper clamping block to press down vertically, working together with the lateral clamping blocks to form a multi-directional composite positioning in the up and down and left and right directions, greatly improving the clamping rigidity and vibration resistance. The entire clamping process is triggered entirely by the main movement of the dust removal component through a purely mechanical linkage and diagonal bar mechanism, without the need for additional cylinders or servo systems. This not only simplifies the structure and reduces costs, but also ensures that the clamping action and cutting are strictly synchronized, significantly improving the flatness and perpendicularity of the cut.

[0019] Specifically: After the dust-laden airflow enters the dust collection chamber, large metal debris first settles and accumulates in the V-shaped collection trough due to the expansion of the flow channel and gravity. It then passes through three stages of filtration: a primary inertial separation mesh made of stainless steel wire mesh intercepts large debris; a high-voltage electrostatic adsorption layer captures conductive micro-dust; and a HEPA filter efficiently filters submicron particles, ensuring the exhaust gas is clean and meets standards. When the settled debris accumulates to a set mass, a weight sensor installed on the sealing block at the bottom of the V-shaped trough automatically triggers a buzzer alarm, prompting timely cleaning to prevent blockage of the delivery pipeline or reduction of negative pressure efficiency. This significantly extends the service life of the filter media, reduces downtime maintenance frequency, and ensures continuous and efficient production.

[0020] In this invention, after cutting, the electric slide rail rises, driving the dust collection chamber and cutting blade to lift as a whole. This pulls the crossbar and diagonal bar in the opposite direction, causing the sliding frame to move towards each other and the lateral clamping block to retract. At the same time, the hydraulic lifting rod retracts, and the upper clamping block rises, completely releasing the constraint on the workpiece. The cut flat tube section, having lost its support, naturally falls off under its own gravity and slides smoothly into the collection position along the inclined plate at the end of the cutting table. This allows the entire unloading process to be completed without the need for a pushing mechanism, robotic arm, or manual intervention, relying on structural reset and gravity. This saves energy, avoids secondary collisions that damage the workpiece surface, and improves the yield of finished products. Furthermore, the rubber buffer columns inside the sliding frame absorb impact energy during clamping, providing flexible support and preventing rigid contact from scratching the surface of the flat tube. At the same time, the integrated pressure sensor monitors the clamping force in real time. Once the limit is exceeded, it immediately feeds back a signal to adjust the hydraulic output, dynamically maintaining the optimal clamping force. This achieves precise clamping of thin-walled flat tubes with both rigidity and flexibility, effectively balancing vibration resistance and deformation prevention requirements. It is especially suitable for sensitive applications such as high-precision heat exchanger flat tubes. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0022] Figure 1 A three-dimensional structural diagram of a cutting device for processing flat tubes; Figure 2 This is a schematic diagram of the cutting process of the dust removal component of the present invention; Figure 3 This is a cross-sectional view of the dust removal component of the present invention; Figure 4 This is a schematic diagram showing the cooperation relationship between the dust removal component and the clamping component of the present invention; Figure 5 This is a schematic diagram of the clamping assembly of the present invention; Figure 6This is a dynamic demonstration diagram of the clamping component of the present invention; Figure 7 This is a schematic diagram of the clamping assembly of the present invention; Figure 8 This is a schematic diagram of the drive motor, carriage, and electric slide rail of the present invention.

[0023] Figure label: 100. Cutting table; 101. Inclined plate; 102. Guide rail; 200. Dust removal assembly; 201. Fan; 202. Conveying pipe; 203. Dust collection chamber; 204. Collection trough; 205. Filter element; 206. Flexible dust collection head; 300. Clamping assembly; 301. Rotating shaft; 302. Crossbar; 303. Inclined bar; 304. Sliding frame; 305. Side clamping block; 306. Hydraulic lifting rod; 307. Upper clamping block; 400. Cutting blade; 500. Drive motor; 501. Slide; 502. Electric slide rail.

[0024] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0025] The cutting device for flat tube processing provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0026] like Figures 1 to 8As shown, an embodiment of the present invention provides a cutting device for processing flat tubes, including a cutting table 100. A slant plate 101 is fixedly installed at one end of the cutting table 100, and a guide rail 102 is installed on one side of the top surface. The cutting table 100 is also provided with a dust removal assembly 200, a clamping assembly 300, and an electric slide rail 502. The dust removal assembly 200 includes a dust collection chamber 203 located above the cutting table 100, a V-shaped filter element 205 fixedly installed inside the dust collection chamber 203 at its outlet end, and elastic dust collection heads 206 respectively installed on both sides of the bottom of the dust collection chamber 203. The clamping assembly 300 includes a sliding frame 304 slidably connected to the guide rail 102 and a clamping assembly 506 mounted on the sliding frame 304. The upper clamping block 307 at the end; the dust removal component 200 is driven downward by the electric slide rail 502, and the elastic dust suction head 206 at the bottom of the dust suction chamber 203 immediately adapts to the pipe, and a local negative pressure sealing field is instantly built at the cutting point to realize the synchronous collection of dust and debris at the source, and the dust is discharged after being purified by the filter element 205; during this downward process, the dust removal component 200 synchronously drives the sliding frame 304 of the clamping component 300 and the upper clamping block 307 to perform radial expansion movement, forming a centrally symmetrical rigid constraint on the flat pipe; after the cutting is completed, the electric slide rail 502 rises to drive the system to reset, the upper clamping block 307 retracts to release the constraint, and the cut flat pipe section automatically falls off under the action of gravity and slides into the collection position along the inclined plate 101.

[0027] As can be seen from the above, when the electric slide rail 502 drives the dust collection chamber 203 downward as the core power source, the bottom elastic dust collection head 206 adapts to the deformation and fits into the surface of the flat tube after contact, instantly creating a local negative pressure sealing field around the cutting point, so that the dust generated by cutting is captured at the source. Then, it is efficiently separated and purified by the V-shaped filter element 205, and the clean air is smoothly discharged, fundamentally solving the problems of dust splashing pollution and incomplete collection in traditional cutting.

[0028] At the same time, the downward movement of the dust collection chamber 203 drives the sliding frame 304 to make radial expansion movement away from the center of the flat tube along the guide rail 102 through mechanical linkage. This causes the upper clamping block 307 installed at one end of the sliding frame 304 to form a centrally symmetrical rigid clamping constraint on the flat tube. With the help of symmetrical clamping force, the flat tube is ensured to maintain accurate positioning at all times during the cutting process. This effectively avoids the deviation or deformation of the thin-walled flat tube caused by uneven force, and significantly improves the flatness and dimensional accuracy of the cut.

[0029] After the cutting operation is completed, the electric slide rail 502 drives the dust collection chamber 203 to move upward and reset. When the dust collection chamber 203 moves upward, the reverse transmission causes the sliding frame 304 to drive the upper clamping block 307 to retract inward towards the center of the flat tube, completely releasing the clamping constraint. The cut flat tube segment naturally falls off under its own gravity and falls onto the inclined plate 101 fixed at one end of the cutting table 100. It slides smoothly into the preset collection position along the inclined surface. Automated material feeding can be achieved without the need for an additional material feeding power source. By driving multiple processes such as dust removal, clamping, and material feeding through a single power source, the equipment structure is simplified, energy consumption and maintenance costs are reduced, and production continuity and processing efficiency are greatly improved. It realizes the integrated optimization of precision cutting, clean operation and automation.

[0030] As an implementation method in this embodiment, such as Figures 2 to 4 As shown, the dust removal assembly 200 also includes a dust storage box fixedly installed on one side of the cutting table 100. A fan 201 is fixedly installed on the top of the dust storage box. The input end of the fan 201 is connected to a conveying pipe 202, which is a retractable flexible hose. The input end of the conveying pipe 202 is connected to a dust collection chamber 203. A collection groove 204 is provided inside the dust collection chamber 203 below the filter element 205. The collection groove 204 is V-shaped. A sealing block with a weight sensor is fixedly installed below the collection groove 204 by bolts. A sealing block with a weight sensor is fixedly installed on one side of the dust collection chamber 203. Equipped with a buzzer alarm, the filter element 205 includes a primary inertial separation mesh, a secondary electrostatic adsorption layer, and a HEPA filter. The primary inertial separation mesh is made of stainless steel wire mesh and is used to pre-intercept larger metal debris. The secondary electrostatic adsorption layer generates an electrostatic field through a high-voltage electrostatic generator. The primary inertial separation mesh, the secondary electrostatic adsorption layer, and the HEPA filter are all bolted to the outlet end inside the dust collection chamber 203. The flexible dust collection head 206 is made of silicone and is designed with a multi-segment splicing structure for adaptive fitting according to the cross-sectional shape of the flat tube.

[0031] As can be seen from the above, the device uses the fan 201 to create a continuous negative pressure at the top of the dust storage box, so that the dust-laden airflow generated in the cutting area is sucked into the conveying pipe 202 through the dust collection chamber 203 and introduced into the storage system. The airflow first enters the dust collection chamber 203, and in the V-shaped collection groove below the filter element 205, due to the sudden expansion of the flow channel and the effect of gravity, the heavier metal debris settles first and accumulates at the bottom of the groove. When the debris accumulates to the set weight, the weight sensor installed on the sealing block triggers the buzzer alarm to prompt timely cleaning and avoid blockage.

[0032] Specifically: the airflow passes through three stages of filtration: the primary inertial separation mesh made of stainless steel wire mesh intercepts large particles of debris by utilizing abrupt changes in airflow direction; the secondary electrostatic adsorption layer captures micron-sized conductive dust under the action of a high-voltage electrostatic field; and finally, the HEPA filter efficiently traps submicron-sized particles to ensure that the exhaust air is clean.

[0033] Meanwhile, the silicone elastic suction head 206 at the bottom of the suction chamber 203 adopts a multi-segment splicing structure, which can adaptively deform according to the cross-sectional contour (such as rectangle or ellipse) of the flat tube upon contact, achieving a 0.1 mm-level fit and seal, blocking the dust escape path from the source. The entire system uses a five-stage synergistic mechanism of "negative pressure guidance - gravity initial sedimentation - inertial separation - electrostatic adsorption - high-efficiency fine filtration", combined with adaptive sealing and intelligent dust accumulation warning, to significantly improve dust removal efficiency, extend filter material life, and ensure a clean working environment and reliable equipment operation.

[0034] As an implementation method in this embodiment, such as Figures 4 to 7 As shown, the clamping assembly 300 also includes two rotating shafts 301 slidably connected to the dust storage box. A crossbar 302 is fixedly connected to one end of each of the two rotating shafts 301. The crossbar 302 is connected to the outer wall of the dust collection chamber 203. Two inclined rods 303 are rotatably connected to the outer wall of one end of each of the two rotating shafts 301. Two sliding frames 304 are provided. The two sliding frames 304 are rotatably connected to one end of each of the two inclined rods 303. Both sliding frames 304 are slidably connected to the guide rail 102. Rubber buffer columns are fixedly connected to both sides inside the two sliding frames 304. A lateral clamping block 305 is fixedly connected to one side of each rubber buffer column. A bracket is fixedly installed on the top of the two sliding frames 304. A hydraulic lifting rod 306 is fixedly installed on the bottom of the bracket. The bottom of the hydraulic lifting rod 306 is connected to the top of the upper clamping block 307. The upper clamping block 307 is located inside the sliding frame 304. A pressure sensor is also installed on the sliding frame 304.

[0035] As can be seen from the above, when the clamping assembly 300 moves downward through the dust collection chamber 203, it drives the crossbar 302, causing the rotating shaft 301 sliding on the dust storage box to move synchronously. This drives the inclined bar 303 connected to it to swing around the rotating shaft 301. The swing of the inclined bar 303 converts the vertical motion into a horizontal component force, pushing the two sliding frames 304 to move in opposite directions along the guide rail 102. This causes the lateral clamping blocks 305 to move outward synchronously from the left and right ends of the flat tube and tighten, forming a centered and balanced lateral constraint. This effectively prevents the thin-walled flat tube from collapsing or shifting due to uneven force during the shearing process.

[0036] The rubber buffer column inside the sliding frame 304 absorbs impact and provides flexible support during clamping, avoiding rigid contact that could damage the pipe surface. At the same time, the hydraulic lifting rod 306 installed on the top of the sliding frame 304 drives the upper clamping block 307 to press down vertically, working with the side clamping block 305 to achieve multi-directional coordinated positioning in the up and down and left and right directions, further enhancing clamping stability. The pressure sensor integrated in the sliding frame 304 monitors the clamping force in real time, and can adjust the hydraulic output if the force exceeds the limit to prevent overpressure deformation.

[0037] As an implementation method in this embodiment, such as Figure 8 As shown, an electric slider is slidably connected to the electric slide rail 502. A slide frame 501 is fixedly connected to one side of the electric slider. A drive motor 500 is fixedly installed inside the slide frame 501. A cutting tool 400 is splinedly connected to the output end of the drive motor 500. The cutting tool 400 is located inside the dust collection chamber 203. The connection between the cutting tool 400 and the dust collection chamber 203 is a sealed structure. One side of the slide frame 501 is fixedly connected to the outer wall of the dust collection chamber 203. One side of the bottom of the electric slide rail 502 is connected to the cutting table 100.

[0038] As described above: the electric slide rail 502 drives the slider to move vertically, causing the slide 501 fixed on the slider to rise and fall synchronously. The drive motor 500 inside the slide 501 directly drives the cutting blade 400 to rotate at high speed via a spline. Since the cutting blade 400 is entirely located inside the dust collection chamber 203, and the connection between it and the dust collection chamber 203 uses a sealed structure, the cutting process is completely enclosed in a negative pressure environment. The slide 501 is rigidly connected to the dust collection chamber 203, ensuring that the up-and-down feed motion of the cutting blade 400 is synchronized with the movement of the dust collection chamber 203. The lifting and lowering of 03 are strictly synchronized, so that at the moment the blade contacts the flat tube, the elastic dust suction head 206 at the bottom of the dust suction chamber 203 has already adhered to the tube to form a sealed cavity, realizing the immediate capture of dust at the source of the blade. This layout integrates the cutting execution mechanism and the dust removal body into one unit, and uses a single slide rail movement to simultaneously complete the blade feeding, sealing positioning and negative pressure start-up, avoiding dust dispersion and cut contamination caused by asynchronous actions in traditional split structures. It not only ensures a high-cleanliness cutting environment, but also simplifies the transmission chain and improves the system rigidity and operational reliability.

[0039] The working principle of the technical solution provided by this invention is as follows: In use, firstly, the flat tube to be cut is sent into the cutting area and positioned at the predetermined cutting position. After the equipment is started, the electric slide rail 502 drives the slider to move the slide frame 501 and the dust collection chamber 203 fixed thereto downwards in sync. As the dust collection chamber 203 descends, the silicone elastic dust collection heads 206 on both sides of its bottom contact the surface of the flat tube and adaptively fit the cross-sectional contour of the flat tube (whether rectangular, elliptical or other irregular shape) with the multi-segment splicing structure, quickly forming a highly sealed local negative pressure cavity around the cutting point. Meanwhile, the fan 201 continues to run, creating negative pressure in the dust storage box, which generates an upward airflow inside the dust collection chamber 203. Once the cutting blade 400 starts to rotate and cuts into the flat tube, the generated metal dust and debris are immediately captured by the negative pressure and enter the dust collection chamber 203. The dust-laden airflow first passes through the V-shaped collection groove, and larger particles settle and accumulate at the bottom of the groove due to gravity and inertia. When the accumulated debris reaches the preset weight, the weight sensor installed on the sealing block triggers a buzzer alarm to remind the operator to clean it. Subsequently, the airflow passes through three stages of filtration: a primary inertial separation mesh made of stainless steel wire mesh intercepts large-diameter debris; a secondary electrostatic adsorption layer captures conductive micro-dust under the action of a high-voltage electrostatic field; and finally, a HEPA filter performs efficient fine filtration of submicron particles to ensure that the discharged gas is clean. During the downward movement of the suction chamber 203, its motion is transmitted to the rotating shaft 301 through the crossbar 302, causing the inclined bar 303 to swing around the rotating shaft 301. The inclined bar 303 converts the vertical displacement into horizontal thrust, pushing the two sliding frames 304 to move in opposite directions along the guide rail 102, so that the lateral clamping blocks 305 simultaneously tighten outward from both ends of the flat tube, forming a centered and balanced lateral constraint. At the same time, the hydraulic lifting rod 306 at the top of the sliding frame 304 drives the upper clamping block 307 to press down vertically, working in conjunction with the lateral clamping blocks 305 to achieve multi-directional compound clamping in the upper and lower and left and right directions. The rubber buffer column provides flexible support during the clamping process to avoid damage to the tube. The pressure sensor monitors the clamping force in real time. If it exceeds the set threshold, it will provide feedback to adjust the hydraulic output to prevent overpressure from causing deformation of the thin-walled flat tube. After cutting, the electric slide rail 502 reverses, driving the dust collection chamber 203 and the cutting blade 400 to rise as a whole. This rising action drives the inclined bar 303 to swing back through the linkage mechanism, causing the sliding frame 304 to move towards each other. At the same time, the hydraulic lifting rod 306 retracts, and the upper clamping block 307 is raised, completely releasing the constraint on the cut flattened pipe section. The unsupported workpiece falls naturally under its own gravity and slides down to the inclined plate 101 at the end of the cutting table 100, and slides smoothly into the collection position along its inclined surface, completing the automatic unloading.

[0040] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A cutting device for processing flat tubes, characterized in that, The cutting table (100) includes a cutting table (100), one end of which is fixedly mounted with an inclined plate (101), and a guide rail (102) is mounted on one side of the top surface. The cutting table (100) is also provided with a dust removal component (200), a clamping component (300), and an electric slide rail (502). The dust removal assembly (200) includes a dust collection chamber (203) located above the cutting table (100), a V-shaped filter element (205) fixedly installed inside the dust collection chamber (203) at the outlet end, and elastic dust collection heads (206) respectively installed on both sides of the bottom of the dust collection chamber (203). The clamping assembly (300) includes a sliding frame (304) slidably connected to the guide rail (102) and an upper clamping block (307) installed at one end of the sliding frame (304). The dust removal assembly (200) is driven downward by the electric slide rail (502). The elastic suction head (206) at the bottom of the dust collection chamber (203) then adaptively fits the tube, instantly creating a local negative pressure sealing field at the cutting point, realizing the synchronous collection of dust and debris at the source, and discharging it after purification by the filter (205). During this downward process, the dust removal assembly (200) synchronously drives the sliding frame (304) and the upper clamping block (307) of the clamping assembly (300) to perform radial expansion movement, forming a centrally symmetrical rigid constraint on the flat tube. After cutting, the electric slide rail (502) rises and drives the system to reset. The upper clamp (307) retracts to release the constraint. The cut flattened pipe section falls off automatically under the action of gravity and slides into the collection position along the inclined plate (101).

2. The cutting device for flat tube processing according to claim 1, characterized in that, The dust removal assembly (200) also includes a dust storage box fixedly installed on one side of the cutting table (100), and a fan (201) is fixedly installed on the top of the dust storage box. The input end of the fan (201) is connected to the conveying pipe (202).

3. The cutting device for flat tube processing according to claim 2, characterized in that, The input end of the delivery pipe (202) is connected to the dust collection chamber (203). The dust collection chamber (203) has a collection groove (204) located below the filter element (205) and the collection groove (204) is V-shaped.

4. The cutting device for flat tube processing according to claim 3, characterized in that, A sealing block with a weight sensor is fixedly installed below the collection trough (204) by bolts, and a buzzer alarm is fixedly installed on one side of the dust collection chamber (203).

5. The cutting device for flat tube processing according to claim 1, characterized in that, The filter element (205) includes a primary inertial separation mesh, a secondary electrostatic adsorption layer, and a HEPA filter. The primary inertial separation mesh is made of stainless steel wire mesh and is used to pre-intercept larger metal debris. The secondary electrostatic adsorption layer generates an electrostatic field through a high-voltage electrostatic generator. The primary inertial separation mesh, the secondary electrostatic adsorption layer, and the HEPA filter are all bolted to the outlet end inside the dust collection chamber (203).

6. The cutting device for flat tube processing according to claim 1, characterized in that, The elastic vacuum head (206) is made of silicone and is designed as a multi-segment splicing structure for adaptive fitting according to the cross-sectional shape of the flat tube.

7. The cutting device for flat tube processing according to claim 1, characterized in that, The clamping assembly (300) also includes two rotating shafts (301) that are slidably connected to the dust storage box. One end of each rotating shaft (301) is fixedly connected to a crossbar (302), which is connected to the outer wall of the dust collection chamber (203).

8. The cutting device for flat tube processing according to claim 7, characterized in that, Two inclined rods (303) are rotatably connected to the outer walls of one end of the two rotating shafts (301). There are two sliding frames (304). The two sliding frames (304) are rotatably connected to one end of the two inclined rods (303), and both sliding frames (304) are slidably connected to the guide rail (102).

9. The cutting device for flat tube processing according to claim 8, characterized in that, Rubber buffer columns are fixedly connected to both sides inside the two sliding frames (304). A lateral clamping block (305) is fixedly connected to one side of the rubber buffer column. A bracket is fixedly installed on the top of the two sliding frames (304). A hydraulic lifting rod (306) is fixedly installed at the bottom of the bracket. The bottom of the hydraulic lifting rod (306) is connected to the top of the upper clamping block (307), and the upper clamping block (307) is located inside the sliding frame (304). A pressure sensor is also installed on the sliding frame (304).

10. The cutting device for flat tube processing according to claim 1, characterized in that, An electric slider is slidably connected to the electric slide rail (502). A slide frame (501) is fixedly connected to one side of the electric slider. A drive motor (500) is fixedly installed inside the slide frame (501). A cutting tool (400) is splinedly connected to the output end of the drive motor (500). The cutting tool (400) is located inside the dust collection chamber (203). The connection between the cutting tool (400) and the dust collection chamber (203) is a sealed structure. One side of the slide frame (501) is fixedly connected to the outer wall of the dust collection chamber (203). One side of the bottom of the electric slide rail (502) is connected to the cutting table (100).

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