Machining device of heat exchanger

Abstract

The invention relates to the technical field of heat exchanger machining, in particular to a heat exchanger machining device which comprises a machining table, a sliding clamping device is arranged on the machining table, the sliding clamping device is used for changing the heat exchanger from horizontal placement to vertical placement, and the machining face is horizontally downward; a mounting frame is arranged at the bottom of the machining table, a collecting device is arranged on the mounting frame and comprises a collecting cover, a first collecting plate and a second collecting plate, the collecting cover is a circular cover, a collecting opening is formed in the upper end, the first collecting plate and the second collecting plate are conical plates, and the tip ends of the first collecting plate and the second collecting plate are arranged upwards. The first collecting plate and the second collecting plate are clamped in the collecting cover, the first collecting plate is located on the upper side of the second collecting plate, guide openings are evenly formed in the first collecting plate and used for separating chippings, the chippings are prevented from flying away in the opening flattening process, mutual blocking between waste pipes is avoided, and collection of the chippings and the waste pipes is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchanger processing, and in particular to a processing device for a heat exchanger. Background Art

[0002] A heat exchanger is an energy-saving device that realizes heat transfer between two or more fluids at different temperatures. The heat exchanger includes a plurality of tube bundles for heat exchange and tube sheets for fixing the tube bundles. When installing the tube bundles on the tube sheets, the excess part needs to be cut and chamfered.

[0003] The patent with the publication number CN111230218A discloses a processing device for heat exchanger production based on efficient chamfering, including a base, a workbench, a vertical plate, a controller, a fixture, a first transmission device, and a work disk; the work disk includes a large gear disk arranged on the first transmission device, a main shaft arranged above the gear disk, a first chamfering knife arranged on the main shaft, a first motor arranged on the workbench, a telescopic power rod connected to the main shaft and arranged on the first motor, and a plurality of moving knife groups arranged radially on the main shaft. Through the setting of the positioning device and the upper knife device, the above invention has accurate positioning and stable processing. Different numbers of chamfering knives are used for processing openings with different center distances, and the processing efficiency is higher.

[0004] When the above device performs chamfering, the entire heat exchanger is placed horizontally, resulting in a vertical cutting surface. This not only generates a large amount of debris during the cutting process, which cannot be collected and cleaned, but also the waste pipes cut off may get stuck between the pipe fittings, affecting subsequent cutting. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages in the prior art that a large amount of debris is generated and cannot be collected and cleaned, and at the same time, the waste pipes cut off may get stuck between the pipe fittings, affecting subsequent cutting, and to propose a processing device for a heat exchanger.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme: A processing device for a heat exchanger, including: a processing table, a sliding clamping device is arranged on the processing table, and the sliding clamping device is used to change the heat exchanger from a horizontal placement to a vertical placement, and the processing surface is horizontally downward; An installation frame is provided at the bottom of the processing table, and a collection device is provided on the installation frame. The collection device includes a collection cover, a first collection plate, and a second collection plate. The collection cover is a circular cover, and the collection opening is provided at the upper end. Both the first collection plate and the second collection plate are conical plates with their tips facing upward. The first collection plate and the second collection plate are respectively clamped inside the collection cover, and the first collection plate is located above the second collection plate. The first collection plate is evenly provided with guide openings for separating debris, and the second collection plate is provided with filter holes for air flow. A wind guiding component is provided at the bottom of the collection cover, and the wind guiding component generates an upward air flow from bottom to top.

[0007] Preferably, the sliding clamping component includes two slide rails, two driving blocks, and two clamping arms. The two slide rails are symmetrically and fixedly installed on the processing table and are L-shaped. The two driving blocks are respectively slidably arranged inside the slide rails. The two clamping arms are both arc-shaped and are symmetrically rotatably installed on the two driving blocks for clamping a circular heat exchanger.

[0008] Preferably, the collection device further includes a sealing ring and a telescopic bottom column. The telescopic bottom column is fixedly installed on the installation frame, and the collection cover is fixedly installed at the upper end of the telescopic bottom column. A plurality of air inlets are annularly provided on the upper side of the collection cover, and elastic filter elements are arranged inside the air inlets. The sealing ring is fixedly installed between the plurality of elastic filter elements, and the sealing ring is used to contact the end of the heat exchanger.

[0009] Preferably, the elastic filter element includes two elastic blocks, two installation strips, and a folding filter screen. The folding filter screen is fixedly installed between the two installation strips. The upper installation strip is fixedly connected to the upper end of the air inlet, and the lower installation strip is limited and slidably arranged inside the air inlet. The two elastic blocks are symmetrically and fixedly connected to both sides of the lower installation strip, and the side of the sealing ring is fixedly connected to the side of the lower installation strip.

[0010] Preferably, the wind guiding component includes a motor and a fan impeller. The motor is fixedly installed at the bottom of the collection cover, and the fan impeller is fixedly installed at the output end of the motor.

[0011] Preferably, a rotating groove is provided on the upper side inside the collection cover, and a cutting component is arranged inside the rotating groove. The cutting component includes a rotating ring, a plurality of driving shafts, a plurality of arm rods, and a plurality of cutting wheels. The rotating ring is rotatably installed inside the rotating groove. The plurality of driving shafts are equidistantly installed on the inner side of the rotating ring. The plurality of arm rods are respectively fixedly installed on the plurality of driving shafts. The arm rods are arc-shaped rods, and the plurality of arm rods form a ring. The cutting wheels are rotatably installed at the end of the arm rod far from the driving shaft for cutting heat exchange tubes.

[0012] Preferably, a linkage assembly is provided at the bottom of the collection hood, and the linkage assembly is used to drive the rotating ring to rotate.

[0013] Preferably, the linkage assembly includes a rotating gear, two reduction gears, a gear ring, and two connecting bars. The rotating gear is fixedly connected to the output end of the motor. An annular groove is formed at the bottom of the collection hood. The annular groove is L-shaped and communicates with the rotating groove at the upper end. The gear ring is rotatably installed inside the annular groove, and the teeth are arranged on the inner side. The two reduction gears are rotatably installed at the bottom of the collection hood and are meshed with the rotating gear and the gear ring. The two connecting bars are symmetrically and fixedly connected to the gear ring, and the upper ends are fixedly connected to the rotating ring.

[0014] Preferably, a sliding ring opening is formed on the side of the annular groove. Two scraping bars are respectively and fixedly connected to the two connecting bars. The scraping bars are inclined and contact the upper surface of the second collection plate.

[0015] Preferably, a plurality of annular openings are formed at the bottom of the collection hood, a plurality of openings are formed on the rotating gear, and a plurality of side openings are formed on the sealing ring. The annular openings, the openings, and the side openings are used for air flow.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. During the processing, the heat exchanger is transferred from the horizontal state to the vertical state, and the debris generated by cutting is controlled inside the collection hood. The generated debris and waste pipes will fall downward under the action of gravity. The guide openings on the first collection plate are used to separate waste pipes and debris of different sizes. The waste pipes fall on the first collection plate and can be used for subsequent recycling, while the generated debris will fall through the guide openings onto the second collection plate below, facilitating the collection and cleaning of the debris. 2. The folding filter screen between the two mounting strips unfolds, so as to filter air while preventing the generated debris from splashing out. At the same time, the normal air flow inside the collection hood can be ensured. The foldable filter screen can be retracted when not in use, thus preventing dust from clogging the foldable filter screen and affecting the normal air flow. 3. The motor drives the impeller to rotate, and the generated air flow will drive the generated debris to move downward during the cutting process, so as to fall onto the second collection plate for collection, facilitating subsequent cleaning. 4. The rotating ring drives a plurality of cutting wheels to rotate around the heat exchanger as the center, so that the pipe parts at multiple locations of the heat exchanger can be quickly cut. Moreover, the individually deflected arm rods reduce the occupied space and will not affect the dropping of the cut pipe fittings during the cutting process, avoiding the situation that the normal bending of the arm rods is affected due to the clamping of the pipe fittings. 5. To ensure the cutting effect, it is necessary to drive the rotating ring to rotate slowly, so as to complete the cutting of the pipe fitting. When the motor starts, the rotating gear drives the two speed-reducing gears to rotate. The rotation of the speed-reducing gears drives the gear ring on the outside to rotate. The gear ring after speed reduction drives the upper rotating ring to rotate through the connecting bars on both sides. 6. While driving the fan impeller to rotate through the motor, the rotating gear is driven to rotate, so that while reducing the structure, it can achieve various different driving effects and play a role in energy conservation and consumption reduction. 7. Through the two scraping bars fixed on the two connecting bars, during the slow rotation of the connecting bars, the scraping bars will rotate on the second collection plate, so as to scrape and clean the debris blocking the filter holes on the second collection plate, avoiding the blockage of the filter holes by debris and affecting the normal flow of air. Brief Description of the Drawings

[0017] Figure 1 It is a front structural schematic diagram of a processing device for a heat exchanger proposed by the present invention; Figure 2 It is a structural schematic diagram of a sliding clamping device of a processing device for a heat exchanger proposed by the present invention; Figure 3 It is a structural schematic diagram of a collection device of a processing device for a heat exchanger proposed by the present invention; Figure 4 It is a sectional structural schematic diagram of a processing device for a heat exchanger proposed by the present invention; Figure 5 It is a structural schematic diagram of a collection plate of a processing device for a heat exchanger proposed by the present invention; Figure 6 It is a structural schematic diagram of an elastic filter element of a processing device for a heat exchanger proposed by the present invention; Figure 7 It is a structural schematic diagram of an air guiding component of a processing device for a heat exchanger proposed by the present invention; Figure 8 It is a structural schematic diagram of a cutting component of a processing device for a heat exchanger proposed by the present invention; Figure 9 It is a structural schematic diagram of a linkage component of a processing device for a heat exchanger proposed by the present invention.

[0018] In the figure: 1, processing table; 2, sliding clamping device; 21, slide rail; 22, driving block; 23, clamping arm; 3, mounting bracket; 4, collection device; 41, collection hood; 42, first collection plate; 43, second collection plate; 44, sealing ring; 45, telescopic bottom column; 5, air guiding assembly; 51, motor; 52, fan impeller; 6, elastic filter element; 61, elastic block; 62, mounting strip; 63, folding filter screen; 7, cutting assembly; 71, rotating ring; 72, driving shaft; 73, arm rod; 74, cutting wheel; 8, linkage assembly; 81, rotating gear; 82, speed reducing gear; 83, gear ring; 84, connecting strip; 9, scraping strip; 10, annular opening; 11, side opening. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present invention are only for the convenience of clear narration, rather than used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in technical content, should also be regarded as the scope of implementation of the present invention.

[0021] Referring to Figures 1-9 , a processing device for a heat exchanger, including: a processing table 1, a sliding clamping device 2 is arranged on the processing table 1, and the sliding clamping device 2 is used to change the heat exchanger from a horizontal placement to a vertical placement, and the processing surface is horizontally downward; An installation bracket 3 is arranged at the bottom of the processing table 1, and a collection device 4 is arranged on the installation bracket 3. The collection device 4 includes a collection hood 41, a first collection plate 42 and a second collection plate 43. The collection hood 41 is a circular hood, and the collection opening is arranged at the upper end. Both the first collection plate 42 and the second collection plate 43 are conical plates, and the tips are upward. The first collection plate 42 and the second collection plate 43 are respectively clamped inside the collection hood 41, and the first collection plate 42 is located above the second collection plate 43. The first collection plate 42 is evenly provided with guide openings for separating debris, and the second collection plate 43 is provided with filter holes for air flow; An air guiding assembly 5 is arranged at the bottom of the collection hood 41, and the air guiding assembly 5 generates an upward air flow from bottom to top.

[0022] In an embodiment of the above technical solution, during the processing, the heat exchanger is transferred from a horizontal state to a vertical state. The upper end opening of the collection cover 41 will contact the bottom surface of the heat exchanger, thereby controlling the chips generated by cutting within the collection cover 41. When the bottom surface of the heat exchanger is cut to a flat opening, the generated chips and waste pipes will fall downward under the action of gravity. The guide openings on the first collection plate 42 (the guide openings can be annular or strip-shaped distributed in a ring, mainly used to separate waste pipes and chips) separate waste pipes and chips of different sizes. The waste pipes fall on the first collection plate 42 and can be used for subsequent recycling, while the generated chips will fall through the guide openings onto the second collection plate 43 below, facilitating the collection and cleaning of the chips.

[0023] This device avoids the scattering of chips and the mutual blocking between waste pipes during the flat opening process, ensuring the collection of chips and waste pipes.

[0024] The preferred technical solution in this embodiment: Refer to Figures 1-2 , the sliding clamping assembly includes two slide rails 21, two driving blocks 22 and two clamping arms 23. The two slide rails 21 are symmetrically and fixedly installed on the processing table 1 and are L-shaped. The two driving blocks 22 are respectively slidably arranged inside the slide rails 21. The two clamping arms 23 are both arc-shaped and are symmetrically rotatably installed on the two driving blocks 22 for clamping a circular heat exchanger.

[0025] Through the feeding device, the heat exchanger to be cut to a flat opening is fixedly clamped by the two clamping arms 23. At the initial fixation, the heat exchanger is in a horizontal placement state, and the processing surface is in a vertical state. By controlling the driving block 22 to slide inside the slide rail 21, the driving block 22 is transferred from the horizontal section of the slide rail 21 to the vertical section, thereby changing the heat exchanger from a horizontal state to a vertical state and changing the processing surface to a horizontal state, facilitating the falling of the cut pipes and chips under the action of gravity.

[0026] Refer to Figures 3-7 , the collection device 4 further includes a sealing ring 44 and a telescopic bottom column 45. The telescopic bottom column 45 is fixedly installed on the mounting frame 3. The collection cover 41 is fixedly installed at the upper end of the telescopic bottom column 45. A plurality of air inlets are annularly arranged on the upper side of the collection cover 41. An elastic filter element 6 is arranged inside the air inlets. The sealing ring 44 is fixedly installed between the plurality of elastic filter elements 6. The sealing ring 44 is used to contact the end of the heat exchanger; The elastic filter element 6 includes two elastic blocks 61, two mounting bars 62 and a folded filter screen 63. The folded filter screen 63 is fixedly installed between the two mounting bars 62. The upper mounting bar 62 is fixedly connected to the upper end of the air inlet, and the lower mounting bar 62 is slidably installed in the air inlet in a limited manner. The two elastic blocks 61 are symmetrically and fixedly connected to both sides of the lower mounting bar 62. The side of the sealing ring 44 is fixedly connected to the side of the lower mounting bar 62.

[0027] After the heat exchanger reaches the processing position, by controlling the expansion and contraction of the telescopic bottom column 45, the collection hood 41 is driven to move upward. The sealing ring 44 first contacts and seals the bottom edge of the heat exchanger, and the side of the processing surface is sealed by the sealing ring 44, so as to block the generated debris during the processing. During the upward movement of the collection hood 41, the sealing ring 44 is squeezed and moves downward, thereby driving the elastic filter element 6 to expand and contract, and unfolding the folded filter screen 63 between the two mounting bars 62. While filtering the air, it can prevent the generated debris from splashing out, and at the same time ensure the normal flow of air inside the collection hood 41, and drive the generated debris to move downward. The folded filter screen can be retracted when not in use, so as to prevent dust from clogging the folded filter screen 63 and affecting the normal flow of air.

[0028] Refer to Figure 7 As shown, the air guiding assembly 5 includes a motor 51 and a fan impeller 52. The motor 51 is fixedly installed at the bottom of the collection hood 41, and the fan impeller 52 is fixedly installed at the output end of the motor 51. A plurality of annular openings 10 are formed at the bottom of the collection hood 41. A plurality of openings are formed on the rotating gear 81. A plurality of side openings 11 are formed on the sealing ring 44. The annular openings 10, the openings and the side openings 11 are used for air flow.

[0029] During the process of flat-cutting the heat exchanger, a large amount of debris will be generated. These debris will fly everywhere and finally adhere to the side wall of the collection hood 41 and the surface of the heat exchanger, which needs to be cleaned subsequently, prolonging the processing time and causing waste of labor.

[0030] An air guiding assembly 5 is provided at the bottom of the collection hood 41. The motor 51 drives the fan impeller 52 to rotate. The rotating fan blades will generate an air flow from top to bottom. External gas enters from the air inlet above the collection hood 41 and is discharged through the annular openings 10 and the openings, forming a complete air flow. The generated air flow will drive the generated debris to move downward during the cutting process, so as to fall onto the second collection plate 43 for collection, facilitating subsequent cleaning.

[0031] Refer to Figure 8, a rotation groove is formed in the upper side inside the collection hood 41, and a cutting assembly 7 is arranged inside the rotation groove. The cutting assembly 7 includes a rotating ring 71, a plurality of drive shafts 72, a plurality of arm rods 73 and a plurality of cutting wheels 74. The rotating ring 71 is rotatably installed inside the rotation groove. The plurality of drive shafts 72 are equidistantly installed on the inner side of the rotating ring 71. The plurality of arm rods 73 are respectively fixedly installed on the plurality of drive shafts 72. The arm rod 73 is an arc-shaped rod. The plurality of arm rods 73 form a circular ring. The cutting wheel 74 is rotatably installed at one end of the arm rod 73 away from the drive shaft 72 and is used for cutting the heat exchange tube; In the existing device, multiple cutting devices are used during the flat mouth process. In this device, multiple drive shafts 72 can drive multiple arm rods 73 to deflect synchronously, so that the position of the cutting wheel 74 can be moved. The rotating ring 71 drives the plurality of cutting wheels 74 to rotate around the heat exchanger as the center, so that the pipe parts at multiple places of the heat exchanger can be quickly cut. Moreover, the individually deflected arm rods 73 reduce the occupied space and will not affect the dropping of the cut pipe fittings during the cutting process, avoiding the situation where the normal bending of the arm rod 73 is affected due to the clamping of the pipe fittings.

[0032] Refer to Figures 7-9 , a linkage assembly 8 is arranged at the bottom of the collection hood 41, and the linkage assembly 8 is used to drive the rotating ring 71 to rotate; The linkage assembly 8 includes a rotating gear 81, two speed reduction gears 82, a gear ring 83 and two connecting bars 84. The rotating gear 81 is fixedly connected to the output end of the motor 51. A ring groove is formed at the bottom of the collection hood 41. The ring groove is L-shaped and is communicated with the rotation groove at the upper end. The gear ring 83 is rotatably installed inside the ring groove, and the teeth are arranged on the inner side. The two speed reduction gears 82 are rotatably installed at the bottom of the collection hood 41 and are meshed with the rotating gear 81 and the gear ring 83. The two connecting bars 84 are symmetrically and fixedly connected to the gear ring 83, and the upper ends are fixedly connected to the rotating ring 71.

[0033] In order to ensure the cutting effect, it is necessary to drive the rotating ring 71 to rotate slowly to complete the cutting of the pipe fittings. When the motor 51 is started and drives the fan impeller 52 to rotate, the output end of the motor 51 will drive the rotating gear 81 to rotate. The rotating gear 81 drives the two speed reduction gears 82 to rotate. The rotation of the speed reduction gear 82 drives the outer gear ring 83 to rotate. Due to the setting of the diameter and pitch of the speed reduction gear 82, the gear ring 83 can rotate at a reduced speed. The gear ring 83 after speed reduction drives the upper rotating ring 71 to rotate through the connecting bars 84 on both sides.

[0034] While the motor 51 drives the fan impeller 52 to rotate, it also drives the rotating gear 81 to rotate. Thus, while reducing the structure, it can achieve various different driving effects and play a role in energy conservation and consumption reduction.

[0035] Referring to Figure 8 , a sliding ring opening is provided on the side of the annular groove, and two scraping bars 9 are respectively fixedly connected to the two connecting bars 84. The scraping bars 9 are inclined and contact the upper surface of the second collecting plate 43.

[0036] During the process of collecting the generated debris, some debris will fall and block the filter holes of the second collecting plate 43. If the blockage on the filter holes is not cleared, it will cause a reduction in the downward wind force, thus making it impossible to quickly collect the debris, resulting in the flying debris adhering to the side of the collecting cover 41 and the heat exchange tubes, reducing the collection efficiency.

[0037] Through the two scraping bars 9 fixed on the two connecting bars 84, during the slow rotation of the connecting bars 84, the scraping bars 9 will rotate on the second collecting plate 43, thereby scraping and cleaning the debris blocking the filter holes on the second collecting plate 43, preventing the debris from blocking the filter holes and affecting the normal flow of air.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A heat exchanger processing device, comprising: A processing table (1), characterized in that a sliding clamping device (2) is arranged on the processing table (1), and the sliding clamping device (2) is used to change the heat exchanger from being placed horizontally to being placed vertically, with the processing surface facing downward horizontally; A mounting frame (3) is provided at the bottom of the processing table (1), and a collecting device (4) is provided on the mounting frame (3). The collecting device (4) comprises a collecting cover (41), a first collecting plate (42) and a second collecting plate (43). The collecting cover (41) is a circular cover, and a collecting port is provided at the upper end. The first collecting plate (42) and the second collecting plate (43) are both conical plates, and the tips are provided upward. The first collecting plate (42) and the second collecting plate (43) are respectively clamped inside the collecting cover (41), and the first collecting plate (42) is located on the upper side of the second collecting plate (43). The first collecting plate (42) is evenly provided with guide ports for separating debris, and the second collecting plate (43) is provided with filter holes for air flow. An air guide component (5) is arranged at the bottom of the collecting hood (41), and the air guide component (5) generates air flow from top to top.

2. A heat exchanger processing device according to claim 1, characterized in that: The sliding clamping assembly comprises two slide rails (21), two drive blocks (22) and two clamping arms (23); the two slide rails (21) are symmetrically fixedly mounted on the processing table (1) and are L-shaped; the two drive blocks (22) are respectively slidably arranged inside the slide rails (21); the two clamping arms (23) are both arc-shaped and symmetrically rotatably mounted on the two drive blocks (22) for clamping a circular heat exchanger.

3. The heat exchanger processing device according to claim 1, characterized in that: The collecting device (4) further comprises a sealing ring (44) and a telescopic bottom column (45); the telescopic bottom column (45) is fixedly mounted on the mounting frame (3); the collecting cover (41) is fixedly mounted on the upper end of the telescopic bottom column (45); a plurality of air inlets are provided in an annular shape on the upper side of the collecting cover (41); elastic filter elements (6) are provided inside the air inlets; the sealing ring (44) is fixedly mounted between the plurality of elastic filter elements (6); and the sealing ring (44) is used to contact the end of the heat exchanger.

4. A heat exchanger processing device according to claim 3, characterized in that: The elastic filter element (6) comprises two elastic blocks (61), two mounting strips (62) and a folded filter screen (63); the folded filter screen (63) is fixedly mounted between the two mounting strips (62); the upper mounting strip (62) is fixedly connected to the upper end of the air inlet; the lower mounting strip (62) is limitedly slidably arranged inside the air inlet; the two elastic blocks (61) are symmetrically fixedly connected to both sides of the mounting strip (62) located below; and the side edge of the sealing ring (44) is fixedly connected to the side edge of the mounting strip (62) located below.

5. The heat exchanger processing device according to claim 1, characterized in that: The air guide assembly (5) comprises a motor (51) and an impeller (52); the motor (51) is fixedly mounted on the bottom of the collection cover (41); and the impeller (52) is fixedly mounted on the output end of the motor (51).

6. The heat exchanger processing device according to claim 1, characterized in that: A rotating groove is provided on the upper side of the collecting cover (41), and a cutting assembly (7) is arranged inside the rotating groove. The cutting assembly (7) comprises a rotating ring (71), a plurality of driving shafts (72), a plurality of arm rods (73) and a plurality of cutting wheels (74). The rotating ring (71) is rotatably mounted inside the rotating groove, a plurality of driving shafts (72) are equidistantly mounted inside the rotating ring (71), a plurality of arm rods (73) are respectively fixedly mounted on the plurality of driving shafts (72), the arm rods (73) are arc-shaped rods, and a plurality of arm rods (73) form a circular ring. The cutting wheel (74) is rotatably mounted on one end of the arm rod (73) away from the driving shaft (72) and is used for cutting the heat exchange tube.

7. A heat exchanger processing device according to claim 6, characterized in that: A linkage assembly (8) is provided at the bottom of the collection cover (41), and the linkage assembly (8) is used to drive the rotating ring (71) to rotate.

8. A heat exchanger processing device according to claim 7, characterized in that: The linkage assembly (8) comprises a rotating gear (81), two speed reduction gears (82), a gear ring (83) and two connecting strips (84); the rotating gear (81) is fixedly connected to the output end of the motor (51); a ring groove is provided at the bottom of the collecting cover (41); the ring groove is L-shaped and the upper end is connected to the rotating groove; the gear ring (83) is rotatably mounted inside the ring groove and the latch teeth are arranged on the inner side; the two speed reduction gears (82) are rotatably mounted at the bottom of the collecting cover (41) and meshedly connected to the rotating gear (81) and the gear ring (83); the two connecting strips (84) are symmetrically fixedly connected to the gear ring (83) and the upper ends are fixedly connected to the rotating ring (71).

9. A heat exchanger processing device according to claim 8, characterized in that: A sliding ring opening is provided on the side of the annular groove, and two scraping strips (9) are fixedly connected to the two connecting strips (84) respectively. The scraping strips (9) are arranged at an angle and are in contact with the upper surface of the second collecting plate (43).

10. A heat exchanger processing device according to claim 8, characterized in that: The bottom of the collecting cover (41) is provided with a plurality of annular openings (10), the rotating gear (81) is provided with a plurality of openings, and the sealing ring (44) is provided with a plurality of side openings (11), wherein the annular openings (10), the openings and the side openings (11) are used for air flow.

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