Milling clamp for automobile heat exchanger pipeline flange

Abstract

The invention belongs to the technical field of clamping, and particularly relates to an automobile heat exchanger pipeline flange milling clamp which comprises a machining table, and a clamping assembly is arranged on the machining table; the clamping assembly comprises a rotating disc rotationally arranged in the middle of the upper end face of the machining table, first air cylinders are fixedly connected to the two sides of the upper end of the rotating disc, and the piston ends of the first air cylinders are fixedly connected with clamping blocks. A milling auxiliary assembly is further arranged on the machining table. The milling auxiliary assembly comprises a transverse moving plate slidably connected to one side of the upper end face of the machining table. By means of the milling auxiliary assembly, in the flange drilling process, the to-be-drilled area of the flange can be surrounded through the enclosure structure composed of the adjusting plate and the scrap blocking cloth, waste scraps generated during drilling can be intercepted in the enclosure and cannot splash towards the periphery, and therefore the situation that the waste scraps pollute the surrounding environment and are attached to the non-drilling area of the flange is avoided, and the drilling efficiency is improved. And the appearance quality of the flange is influenced.

Description

Technical Field

[0001] This invention belongs to the field of clamping technology, specifically a milling fixture for automotive heat exchanger pipe flanges. Background Technology

[0002] Automotive heat exchanger piping is a specialized piping system that connects key components such as the engine and transmission to various heat exchangers. Flanges, as key components in automotive heat exchanger piping systems that enable detachable connections, need to be fixed with fixtures during the milling process.

[0003] Patent CN120115743B discloses a milling fixture for automotive heat exchanger pipe flanges, including a worktable, a clamping assembly, and a cleaning assembly. The worktable includes a machining table, a lifting assembly, and a slag discharge trough. The machining table is positioned on the worktable, and the lifting assembly controls its raising and lowering. The slag discharge troughs are located on both sides of the machining table. The clamping assembly is positioned on the worktable and can flip the flange after the machining table descends. The cleaning assembly is positioned on the worktable and is used to clean the waste generated during milling after the machining table descends. The cleaning assembly includes a cleaning brush, an active eccentric disc, a driven eccentric disc, and a drive assembly. The active and driven eccentric discs are rotatably connected to the worktable and drive the cleaning brush towards the slag discharge trough. The drive assembly drives the active eccentric disc. This patent solves the problem of difficult-to-clean debris and waste generated during milling by using the cleaning assembly.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: Drilling, a type of flange milling, involves drilling holes along the flange edge to create assembly holes. While existing technologies can secure the flange, the drilling process generates flying debris and spiral-shaped chips as the drill bit cuts. These chips not only pollute the surrounding environment but also adhere to non-drilled areas of the flange, affecting its appearance. Even when water flushing or negative pressure suction is used to remove the chips during drilling, the dispersed nature of the chips makes thorough cleaning difficult. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a milling fixture for automotive heat exchanger pipe flanges.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a milling fixture for automotive heat exchanger pipe flanges, including a machining table, wherein a clamping assembly is provided on the machining table; The clamping assembly includes a turntable rotatably disposed in the middle of the upper surface of the processing table, and a cylinder is fixedly connected to both sides of the upper end of the turntable, with a clamping block fixedly connected to the piston end of the cylinder. The machining table is also equipped with milling auxiliary components; The milling auxiliary component includes a transverse plate slidably connected to one side of the upper surface of the machining table. A lifting ring is slidably connected to one side of the transverse plate. A rotating cylinder is rotatably arranged inside the lifting ring. Multiple radial rods are evenly distributed and slidably connected along the circumference of the rotating cylinder. An adjusting plate is fixedly connected to one end of each radial rod. A roller is rotatably arranged on one side of the inner cavity of the adjusting plate. A chip-blocking cloth is wound on the roller. The chip-blocking cloth passes through one side of the adjusting plate and is slidably connected to it. The end of the chip-blocking cloth is fixedly connected to the adjusting plate on the other side.

[0007] Preferably, a gear is rotatably mounted on one side of the upper surface of the processing table, and the gear meshes with the toothed blocks on the outer ring of the turntable. A motor is fixedly connected to one side of the inner cavity of the processing table, and the output end of the motor is fixedly connected to the gear.

[0008] Preferably, a cylinder three is fixedly connected to one side of the upper surface of the processing table, and the piston end of the cylinder three is fixedly connected to one side of the transverse plate.

[0009] Preferably, a threaded rod two is threadedly connected to one side of the lifting ring, and both ends of the threaded rod two are rotatably mounted on the transverse plate. A motor four is fixedly connected to one side of the upper end of the transverse plate, and the output end of the motor four is fixedly connected to one end of the threaded rod two.

[0010] Preferably, a transmission ring is rotatably sleeved on one side of the outer ring of the rotating cylinder, a connecting rod is rotatably mounted on one end of the radial rod, and one end of the connecting rod is rotatably mounted on the transmission ring. A threaded rod three is threadedly connected to one end of the radial rod on one side, and one end of the threaded rod three is rotatably mounted on the rotating cylinder. A motor six is ​​fixedly connected to one side of the rotating cylinder, and the output end of the motor six is ​​fixedly connected to one end of the threaded rod three.

[0011] Preferably, a motor seven is fixedly connected to one side of the adjusting plate, and the output end of the motor seven is fixedly connected to one end of the roller.

[0012] Preferably, it also includes a compression-type self-cleaning component; The compression self-cleaning assembly includes a rotating plate rotatably mounted on one side of the upper end of the lifting ring. A cylinder is fixedly connected to one end of the rotating plate, and a pressure plate is fixedly connected to the piston end of the cylinder. A slider is slidably connected to one side of the transverse plate, and a receiving plate is rotatably mounted on one end of the slider. A gear is rotatably mounted on one side of the lifting ring, and the gear meshes with the toothed blocks on the outer ring of the rotating cylinder. A motor is fixedly connected to one side of the lifting ring, and the output end of the motor is fixedly connected to the gear.

[0013] Preferably, a motor is fixedly connected to one side of the upper end of the lifting ring, and the output end of the motor is fixedly connected to one end of the rotating plate.

[0014] Preferably, one end of the slider is threadedly connected to a threaded rod, both ends of which are rotatably mounted on a transverse plate. A motor is fixedly connected to one side of the transverse plate, and the output end of the motor is fixedly connected to one end of the receiving plate. A motor is fixedly connected to one end of the slider, and the output end of the motor is fixedly connected to one end of the receiving plate.

[0015] Preferably, a material discharge port is provided on one side of the upper end of the processing table, and a collection box is provided on one side of the inner cavity of the processing table, with the material discharge port aligned with the opening of the collection box.

[0016] The beneficial effects of this invention are as follows: 1. The present invention discloses a milling fixture for automotive heat exchanger pipe flanges. Utilizing milling auxiliary components, during flange drilling, a baffle structure composed of an adjusting plate and a chip-blocking cloth surrounds the area of ​​the flange to be drilled. Drilling debris is intercepted inside the baffle, preventing it from splashing outwards. This maintains a clean working environment and avoids affecting the flange surface finish due to debris adhering to the non-drilled areas, as well as preventing the formation of microscopic protrusions on the flange surface. This ensures the appearance quality of the flange and facilitates subsequent processing and assembly. Compared to methods of removing debris through water flushing or negative pressure adsorption, this method completely isolates debris from the external environment, eliminating cleaning dead zones that can occur with water flushing or negative pressure adsorption. In addition, the size of the enclosure structure can be adjusted by driving multiple adjusting plates to move simultaneously and by simultaneously unwinding and rewinding multiple chip-blocking cloths. Without affecting the operation of the drill bit, the size of the enclosure structure can be reduced as much as possible, so that the enclosure structure can not only intercept waste chips, but also avoid gaps between it and the flange end face due to excessive size, thus further ensuring the interception effect of waste chips.

[0017] 2. The automotive heat exchanger pipe flange milling fixture of the present invention utilizes a compression self-cleaning component. Each time a hole is drilled, it cleans the debris within the enclosure structure and the hole wall. Furthermore, when the chip-blocking cloth is rolled into the inner cavity of the adjusting plate, the debris adhering to its surface is scraped off. As the pressure plate moves along the surface of the adjusting plate, the debris adhering to the adjusting plate is also scraped off. Therefore, after the cleaning work is completed, debris will not remain on the adjusting plate and the surface of the chip-blocking cloth, thus ensuring the cleanliness of the enclosure structure and preventing the continuous presence of debris in the enclosure structure from affecting the subsequent drilling cutting effect. Moreover, the cleaning process compresses the debris, thereby reducing its volume to a certain extent, facilitating subsequent processing. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 3 This is a schematic diagram of the three-dimensional structure of the turntable; Figure 4 This is a schematic diagram of the three-dimensional structure at the transverse sliding plate. Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a schematic diagram of the three-dimensional structure of the adjustment plate. Figure 7 yes Figure 6 Enlarged view of a section at point B in the middle; Figure 8 This is a schematic diagram of the three-dimensional structure of the pressure plate. Figure 9 This is a schematic diagram of the three-dimensional structure of the receiving plate.

[0020] In the diagram: 1. Processing table; 2. Cylinder 1; 3. Collection box; 4. Turntable; 5. Clamping block; 6. Cylinder 2; 7. Gear 1; 8. Transverse plate; 9. Cylinder 3; 10. Rotating plate; 11. Motor 1; 12. Pressure plate; 13. Receiving plate; 14. Motor 2; 15. Threaded rod 1; 16. Motor 3; 17. Slider; 18. Motor 4; 19. Threaded rod 2; 20. Lifting ring; 21. Gear 2; 22. Motor 5; 23. Roller; 24. Rotating cylinder; 25. Radial rod; 26. Connecting rod; 27. Motor 6; 28. Threaded rod 3; 29. ​​Adjusting plate; 30. Chip-blocking cloth; 31. Transmission ring; 32. Motor 7; 33. Motor 8; 34. Discharge port. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described 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.

[0022] Please refer to Figures 1-9 The present invention provides a technical solution: a milling fixture for automotive heat exchanger pipe flanges, including a machining table 1, on which a clamping assembly is provided; The clamping assembly includes a turntable 4 rotatably disposed in the middle of the upper end face of the processing table 1. Both sides of the upper end of the turntable 4 are fixedly connected to cylinders 2, and the piston end of cylinders 2 is fixedly connected to a clamping block 5. The machining table 1 is also equipped with milling auxiliary components; The milling auxiliary component includes a transverse plate 8 slidably connected to one side of the upper end face of the machining table 1. A lifting ring 20 is slidably connected to one side of the transverse plate 8. A rotating cylinder 24 is rotatably arranged inside the lifting ring 20. Multiple radial rods 25 are evenly distributed and slidably connected along the circumference of the rotating cylinder 24. An adjusting plate 29 is fixedly connected to one end of each radial rod 25. A roller 23 is rotatably arranged on one side of the inner cavity of the adjusting plate 29. A chip-blocking cloth 30 is wound on the roller 23. The chip-blocking cloth 30 passes through one side of the adjusting plate 29 and is slidably connected to it. The end of the chip-blocking cloth 30 is fixedly connected to the other side of the adjusting plate 29.

[0023] In this embodiment, as Figures 3-7 As shown, a gear 7 is rotatably mounted on one side of the upper end face of the processing table 1. The gear 7 meshes with the toothed blocks on the outer ring of the turntable 4. A motor 33 is fixedly connected to one side of the inner cavity of the processing table 1. The output end of the motor 33 is fixedly connected to the gear 7.

[0024] A cylinder 39 is fixedly connected to one side of the upper surface of the processing table 1, and the piston end of the cylinder 39 is fixedly connected to one side of the transverse plate 8.

[0025] A threaded rod 19 is threadedly connected to one side of the lifting ring 20. Both ends of the threaded rod 19 are rotatably mounted on the transverse plate 8. A motor 18 is fixedly connected to one side of the upper end of the transverse plate 8. The output end of the motor 18 is fixedly connected to one end of the threaded rod 19.

[0026] A transmission ring 31 is rotatably sleeved on one side of the outer ring of the rotating cylinder 24. A connecting rod 26 is rotatably mounted on one end of the radial rod 25, and one end of the connecting rod 26 is rotatably mounted on the transmission ring 31. A threaded rod 28 is threadedly connected to one end of the radial rod 25, and one end of the threaded rod 28 is rotatably mounted on the rotating cylinder 24. A motor 27 is fixedly connected to one side of the rotating cylinder 24, and the output end of the motor 27 is fixedly connected to one end of the threaded rod 28.

[0027] A motor 32 is fixedly connected to one side of the adjusting plate 29, and the output end of the motor 32 is fixedly connected to one end of the roller 23.

[0028] Specifically, drilling, as a type of flange milling, involves drilling holes along the flange edge to create assembly holes. While existing technologies can secure the flange, the drilling process generates flying debris and spiral-shaped chips as the drill bit cuts. These chips not only pollute the surrounding environment but also adhere to non-drilled areas of the flange, affecting its appearance. Even when water flushing or negative pressure suction is used to clean the chips during drilling, the dispersed nature of the chips makes thorough cleaning highly likely.

[0029] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: First, the flange to be processed is placed between the clamping blocks 5 on both sides. Then, the cylinder 2 is used to drive the clamping blocks 5 on both sides to move closer to each other, thus clamping the flange and ensuring the stability of the flange during the milling process.

[0030] The turntable 4 rotates by rotating gear 7 driven by motor 833, thereby adjusting the flange angle. The transverse plate 8 moves laterally across the upper surface of the processing table 1 via cylinder 39, adjusting the lateral position of the rotating cylinder 24 until it aligns with the drill bit's axis. Then, motor 418 drives threaded rod 19 to rotate, causing the lifting ring 20 to descend until the bottom of the adjusting plate 29 is in contact with the flange surface. Because multiple adjusting plates 29 and multiple chip-blocking cloths 30 form a barrier structure, the drill bit can extend into the barrier and drill holes in the flange. During drilling, waste chips are trapped inside the barrier, preventing them from splashing outwards and thus avoiding environmental pollution and the accumulation of chips in non-drilled areas of the flange, which could affect its appearance.

[0031] While the above methods can intercept waste debris, different flange sizes require different drilling diameters. If the size of the enclosure structure is fixed, the drill bit may not be able to reach inside if the enclosure structure is too small. If the size of the enclosure structure is set too large, gaps may appear between the enclosure structure and the flange end face, allowing waste debris to easily splash out from these gaps. Therefore, to solve this problem, the motor 6 27 can be used to drive the threaded rod 3 28 to rotate according to the diameter of the drill bit, so that the radial rod 25 on one side slides radially on the rotating cylinder 24. When the radial rod 25 slides, multiple radial rods 25 will slide simultaneously under the transmission of the connecting rod 26 and the transmission ring 31. This will cause multiple adjusting plates 29 to move closer to or further away from the axis of the rotating cylinder 24 at the same time. When the adjusting plate 29 moves, the motor 7 32 drives the roller 23 to rotate, which will wind up and unwind the chip blocking cloth 30, keeping the unwinding part of the chip blocking cloth 30 taut. This allows the size of the enclosure structure to be adjusted. Without affecting the operation of the drill bit, the size of the enclosure structure can be reduced as much as possible, so that the enclosure structure can not only intercept waste chips, but also avoid gaps between the structure and the flange end face due to excessive size, thus further ensuring the interception effect of waste chips.

[0032] In this embodiment, as Figure 4 , Figure 5 , Figure 8 , Figure 9 As shown, it also includes a compressed self-cleaning component; The compression self-cleaning assembly includes a rotating plate 10 rotatably mounted on one side of the upper end of the lifting ring 20. One end of the rotating plate 10 is fixedly connected to a cylinder 6, and the piston end of the cylinder 6 is fixedly connected to a pressure plate 12. A slider 17 is slidably connected to one side of the transverse plate 8, and a receiving plate 13 is rotatably mounted on one end of the slider 17. A gear 21 is rotatably mounted on one side of the lifting ring 20, and the gear 21 meshes with the toothed blocks on the outer ring of the rotating cylinder 24. A motor 22 is fixedly connected to one side of the lifting ring 20, and the output end of the motor 22 is fixedly connected to the gear 21.

[0033] A motor 11 is fixedly connected to one side of the upper end of the lifting ring 20, and the output end of the motor 11 is fixedly connected to one end of the rotating plate 10.

[0034] One end of the slider 17 is threadedly connected to a threaded rod 15. Both ends of the threaded rod 15 are rotatably mounted on the transverse plate 8. One side of the transverse plate 8 is fixedly connected to a motor 3 16. The output end of the motor 3 16 is fixedly connected to one end of the receiving plate 13. One end of the slider 17 is fixedly connected to a motor 2 14. The output end of the motor 2 14 is fixedly connected to one end of the receiving plate 13.

[0035] A material discharge port 34 is provided on one side of the upper end of the processing table 1, and a collection box 3 is provided on one side of the inner cavity of the processing table 1, with the material discharge port 34 aligned with the opening of the collection box 3.

[0036] Specifically, in the above embodiments, although a containment structure can be used to intercept the debris, the intercepted debris remains within the containment structure. When the flange is rotated to change the drilling position, the debris within the containment structure also moves, obscuring the surface of the next area to be drilled on the flange, thus affecting the cutting effect of the drill bit to some extent. Furthermore, some debris also adheres to the borehole wall, affecting the subsequent flange assembly accuracy.

[0037] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Each time a hole is drilled in the flange, the motor 316 drives the threaded rod 15 to rotate, causing the receiving plate 13 to rise and fit against the lower end face of the flange. At this time, the size of the enclosure structure is reduced until the adjusting plate 29 is aligned with the edge of the hole wall. Then, the enclosure structure is driven into the hole until the bottom of the adjusting plate 29 fits against the upper end face of the receiving plate 13. At this time, the size of the enclosure structure is reduced again until the edges of multiple adjusting plates 29 fit against each other. At this time, multiple adjusting plates 29 together form a complete cylindrical structure. During the reduction of the size of the enclosure structure, the waste chips attached to the hole wall are pushed to the center area of ​​the hole. Since the chip-blocking cloth 30 is taut, it creates a gap with the borehole wall after entering the borehole. The debris adhering to the borehole wall will be trapped in this gap. Therefore, when the enclosure structure is reduced in size, the debris cannot be pushed away. To avoid this, after the adjusting plate 29 completes one chip-pushing action, it can be driven to rise. Then, the motor 22 drives the gear 21 to rotate, causing the rotating cylinder 24 to rotate. This adjusts the angle of the multiple adjusting plates 29, and then the adjusting plates 29 are inserted into the borehole again to push away the debris from the remaining parts of the borehole wall until all the debris in the borehole is concentrated in the enclosure. Inside the structure, motor 11 drives rotating plate 10 to rotate 90 degrees, so that the axis of pressure plate 12 coincides with the axis of drilling. At this time, multiple adjusting plates 29 are in close contact with each other to form a complete cylindrical structure. The size of pressure plate 12 matches the size of the cylindrical structure. Therefore, when pressure plate 12 descends, it will slide along the inner surface of adjusting plate 29 and squeeze the debris until the volume of waste debris is compressed by the cooperation of pressure plate 12 and receiving plate 13. At this time, the receiving plate 13 can be driven to descend and move away from the flange end face. Then, motor 2 drives receiving plate 13 to rotate and pour the waste debris into collection box 3. Then, the above operation is repeated. Each time a hole is drilled, the debris inside the enclosure structure and the hole wall can be cleaned. When the chip-blocking cloth 30 is rolled into the inner cavity of the adjusting plate 29, the debris attached to its surface will be scraped off. When the pressure plate 12 moves along the surface of the adjusting plate 29, the debris attached to the adjusting plate 29 will also be scraped off. Therefore, after the cleaning work is completed, the debris will not remain on the surface of the adjusting plate 29 and the chip-blocking cloth 30, thus ensuring the cleanliness of the enclosure structure and avoiding the situation where the debris is continuously in the enclosure structure, which will affect the cutting effect of the subsequent drill bit. In addition, the cleaning process will compress the debris, thereby reducing the volume of the debris to a certain extent, which will facilitate subsequent processing.

[0038] Working principle: First, the flange to be processed is placed between the clamping blocks 5 on both sides. Then, the clamping blocks 5 on both sides are brought closer together by the cylinder 2 to clamp the flange, thus ensuring the stability of the flange during milling. The gear 7 is rotated by the motor 33, which rotates the turntable 4 to adjust the angle of the flange. The transverse plate 8 is moved laterally on the upper surface of the processing table 1 by the cylinder 9, which adjusts the lateral position of the rotating cylinder 24 until the rotating cylinder 24 coincides with the drill bit axis. Then, the threaded rod 19 is rotated by the motor 18, which lowers the lifting ring 20 until the bottom of the adjusting plate 29 is in contact with the flange surface. Because multiple adjusting plates 29 and multiple chip-blocking cloths 30 form a barrier structure, the drill bit can extend into the barrier to drill holes in the flange. During drilling, the chips are only intercepted inside the barrier and will not splash to the surrounding area. This maintains a clean working environment and avoids affecting the surface finish of the flange due to chips adhering to the non-drilled areas, as well as preventing the formation of microscopic protrusions on the flange surface. This ensures the appearance quality of the flange and facilitates subsequent processing and assembly. Although chips can be intercepted in this way, different flanges have different sizes and require different hole diameters. If the size of the barrier structure is fixed, the drill bit may not be able to reach inside if the barrier structure is too small. If the size of the barrier structure is set too large, gaps may appear between the barrier structure and the flange end face, allowing chips to easily splash out from these gaps. Therefore, to solve this problem, the motor 6 27 can be used to drive the threaded rod 3 28 to rotate according to the diameter of the drill bit, so that the radial rod 25 on one side slides radially on the rotating cylinder 24. When the radial rod 25 slides, multiple radial rods 25 will slide simultaneously under the transmission of the connecting rod 26 and the transmission ring 31. This will cause multiple adjusting plates 29 to move closer to or further away from the axis of the rotating cylinder 24 at the same time. When the adjusting plate 29 moves, the motor 7 32 drives the roller 23 to rotate, which will wind up and unwind the chip blocking cloth 30, keeping the unwinding part of the chip blocking cloth 30 taut. This allows the size of the enclosure structure to be adjusted. Without affecting the operation of the drill bit, the size of the enclosure structure can be reduced as much as possible, so that the enclosure structure can not only intercept waste chips, but also avoid gaps between the structure and the flange end face due to excessive size, thus further ensuring the interception effect of waste chips. Each time a hole is drilled in the flange, the motor 316 drives the threaded rod 15 to rotate, causing the receiving plate 13 to rise and fit against the lower end face of the flange. At this time, the size of the enclosure structure is reduced until the adjusting plate 29 is aligned with the edge of the hole wall. Then, the enclosure structure is driven into the hole until the bottom of the adjusting plate 29 fits against the upper end face of the receiving plate 13. At this time, the size of the enclosure structure is reduced again until the edges of multiple adjusting plates 29 fit against each other. At this time, multiple adjusting plates 29 together form a complete cylindrical structure. During the reduction of the size of the enclosure structure, the waste chips attached to the hole wall are pushed to the center area of ​​the hole.Since the chip-blocking cloth 30 is taut, it creates a gap with the borehole wall after entering the borehole. The debris adhering to the borehole wall will be trapped in this gap. Therefore, when the enclosure structure is reduced in size, the debris cannot be pushed away. To avoid this, after the adjusting plate 29 completes one chip-pushing action, it can be driven to rise. Then, the motor 22 drives the gear 21 to rotate, causing the rotating cylinder 24 to rotate. This adjusts the angle of the multiple adjusting plates 29, and then the adjusting plates 29 are inserted into the borehole again to push away the debris from the remaining parts of the borehole wall until all the debris in the borehole is concentrated in the enclosure. Inside the structure, motor 11 drives rotating plate 10 to rotate 90 degrees, so that the axis of pressure plate 12 coincides with the axis of drilling. At this time, multiple adjusting plates 29 are in close contact with each other to form a complete cylindrical structure. The size of pressure plate 12 matches the size of the cylindrical structure. Therefore, when pressure plate 12 descends, it will slide along the inner surface of adjusting plate 29 and squeeze the debris until the volume of waste debris is compressed by the cooperation of pressure plate 12 and receiving plate 13. At this time, the receiving plate 13 can be driven to descend and move away from the flange end face. Then, motor 2 drives receiving plate 13 to rotate and pour the waste debris into collection box 3. Then, the above operation is repeated. Each time a hole is drilled, the debris inside the enclosure structure and the hole wall can be cleaned. When the chip-blocking cloth 30 is rolled into the inner cavity of the adjusting plate 29, the debris attached to its surface will be scraped off. When the pressure plate 12 moves along the surface of the adjusting plate 29, the debris attached to the adjusting plate 29 will also be scraped off. Therefore, after the cleaning work is completed, the debris will not remain on the surface of the adjusting plate 29 and the chip-blocking cloth 30, thus ensuring the cleanliness of the enclosure structure and avoiding the situation where the debris is continuously in the enclosure structure, which will affect the cutting effect of the subsequent drill bit. In addition, the cleaning process will compress the debris, thereby reducing the volume of the debris to a certain extent, which will facilitate subsequent processing.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling fixture for automotive heat exchanger pipe flanges, comprising a machining table (1), characterized in that: The processing table (1) is equipped with a clamping assembly; The clamping assembly includes a turntable (4) rotatably disposed in the middle of the upper surface of the processing table (1), and cylinders (2) are fixedly connected to both sides of the upper end of the turntable (4), and clamping blocks (5) are fixedly connected to the piston end of cylinders (2). The machining table (1) is also equipped with a milling auxiliary component; The milling auxiliary component includes a transverse plate (8) slidably connected to one side of the upper end face of the machining table (1). A lifting ring (20) is slidably connected to one side of the transverse plate (8). A rotating cylinder (24) is rotatably arranged in the inner ring of the lifting ring (20). Multiple radial rods (25) are evenly distributed and slidably connected along the circumference of the rotating cylinder (24). An adjusting plate (29) is fixedly connected to one end of the radial rod (25). A roller (23) is rotatably arranged in one side of the inner cavity of the adjusting plate (29). A chip-blocking cloth (30) is wound on the roller (23). The chip-blocking cloth (30) passes through one side of the adjusting plate (29) and is slidably connected to it. The end of the chip-blocking cloth (30) is fixedly connected to the adjusting plate (29) on the other side.

2. The milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that: Gear 1 (7) is rotatably mounted on one side of the upper end face of the processing table (1). Gear 1 (7) meshes with the tooth block of the outer ring of the turntable (4). Motor 8 (33) is fixedly connected to one side of the inner cavity of the processing table (1). The output end of motor 8 (33) is fixedly connected to gear 1 (7).

3. A milling fixture for automotive heat exchanger pipe flanges according to claim 2, characterized in that: A cylinder three (9) is fixedly connected to one side of the upper end face of the processing table (1), and the piston end of the cylinder three (9) is fixedly connected to one side of the transverse plate (8).

4. The milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that: The lifting ring (20) is threadedly connected to a threaded rod (19) on one side. Both ends of the threaded rod (19) are rotatably mounted on the transverse plate (8). A motor (18) is fixedly connected to one side of the upper end of the transverse plate (8). The output end of the motor (18) is fixedly connected to one end of the threaded rod (19).

5. A milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that: A transmission ring (31) is rotatably sleeved on one side of the outer ring of the rotating cylinder (24). A connecting rod (26) is rotatably mounted on one end of the radial rod (25). One end of the connecting rod (26) is rotatably mounted on the transmission ring (31). A threaded rod (28) is threadedly connected to one end of the radial rod (25). One end of the threaded rod (28) is rotatably mounted on the rotating cylinder (24). A motor (27) is fixedly connected to one side of the rotating cylinder (24). The output end of the motor (27) is fixedly connected to one end of the threaded rod (28).

6. A milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that: A motor (32) is fixedly connected to one side of the adjusting plate (29), and the output end of the motor (32) is fixedly connected to one end of the roller (23).

7. A milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that: It also includes a compressed self-cleaning component; The compression self-cleaning assembly includes a rotating plate (10) rotatably mounted on one side of the upper end of the lifting ring (20). One end of the rotating plate (10) is fixedly connected to a cylinder (6). The piston end of the cylinder (6) is fixedly connected to a pressure plate (12). One side of the transverse plate (8) is slidably connected to a slider (17). One end of the slider (17) is rotatably mounted to a receiving plate (13). One side of the lifting ring (20) is rotatably mounted to a gear (21). The gear (21) meshes with the toothed blocks on the outer ring of the rotating cylinder (24). One side of the lifting ring (20) is fixedly connected to a motor (22). The output end of the motor (22) is fixedly connected to the gear (21).

8. A milling fixture for automotive heat exchanger pipe flanges according to claim 7, characterized in that: A motor (11) is fixedly connected to one side of the upper end of the lifting ring (20), and the output end of the motor (11) is fixedly connected to one end of the rotating plate (10).

9. A milling fixture for automotive heat exchanger pipe flanges according to claim 7, characterized in that: One end of the slider (17) is threadedly connected to a threaded rod (15), both ends of which are rotatably mounted on the transverse plate (8). One side of the transverse plate (8) is fixedly connected to a motor (16), the output end of which is fixedly connected to one end of the receiving plate (13). One end of the slider (17) is fixedly connected to a motor (14), the output end of which is fixedly connected to one end of the receiving plate (13).

10. A milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that: The processing table (1) has a material discharge port (34) on one side of its upper end, and a collection box (3) is provided on one side of the inner cavity of the processing table (1). The material discharge port (34) is aligned with the opening of the collection box (3).

Images