Automobile heat exchanger pipe flange milling clamp

Abstract

The present application relates to the technical field of clamping, in particular to a kind of automobile heat exchanger pipeline flange milling clamps, including workbench, clamping component and cleaning component, and processing table, lifting assembly and slagging-off groove are provided on workbench;Processing table is set on workbench, lifting assembly is used to control the lifting of processing table, and slagging-off groove is located at the two sides of processing table;Clamping component is set on workbench, and clamping component can overturn flange after processing table drops;Cleaning component is set on workbench, and cleaning component is used to clean the waste residue generated during milling after processing table drops, and cleaning component includes cleaning brush, driving eccentric disc, driven eccentric disc and drive assembly;Driving eccentric disc and driven eccentric disc are rotatably connected with workbench, and driving eccentric disc and driven eccentric disc are used to drive cleaning brush to move towards slagging-off groove, and drive assembly is used to drive driving eccentric disc.The present application solves the problem that milling produces scrap and waste residue difficult to clean by cleaning component.

Description

Technical Field

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

[0002] Clamping is the process of positioning and securing. Before machining begins, the workpiece must first occupy a correct position on the machine tool or in the fixture. To prevent the positioned workpiece from shifting under cutting forces and to ensure it maintains the correct position throughout the machining process, the workpiece must be firmly clamped. Milling flanges typically requires double-sided milling, usually necessitating manual flipping. Manual flipping is time-consuming, labor-intensive, and reduces machining efficiency.

[0003] Chinese patent CN213701921U discloses a flange milling clamping device, including a base plate, four support legs installed at the four corners of the lower end of the base plate, a circular groove in the center of the upper end of the base plate, a positioning shaft inserted in the center of the circular groove, and slots on both sides inside the circular groove. A support platform is welded to the upper end of the positioning shaft, and a cylindrical protrusion is on the upper end of the support platform. A locking block is welded to one of the two sides of the support platform.

[0004] However, in use, after the flange is flipped over, the debris and waste generated during flange milling will fall onto the support platform. When milling the other side of the flange, the debris and waste will be stuck between the flange and the support platform, affecting the milling effect on the other side of the flange. If the waste is cleaned manually, it will not only be time-consuming and laborious, but also affect the milling efficiency of the flange. Summary of the Invention

[0005] To address the aforementioned issues, a milling fixture for automotive heat exchanger pipe flanges is provided, which solves the problem of difficult-to-clean debris and waste generated during milling by using a cleaning component.

[0006] To address the problems of existing technologies, this invention provides a milling fixture for automotive heat exchanger pipe flanges, comprising 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 supports the flange during milling, the lifting assembly controls its movement, and the slag discharge troughs are located on both sides of the machining table to allow waste slag generated during milling to pass through. The clamping assembly clamps the flange during milling and can flip it after the machining table descends. The cleaning assembly cleans the waste slag 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 driving assembly. The active and driven eccentric discs are rotatably connected to the worktable, driving the cleaning brush towards the slag discharge trough, and the driving assembly drives the active eccentric disc.

[0007] Preferably, the cleaning brush is provided with a cleaning plate; the bottom of the cleaning plate is provided with bristles, which are used to clean the waste generated during milling; the active eccentric disk is provided with a first eccentric shaft, which is connected to one side of the cleaning plate; the driven eccentric disk is provided with a second eccentric shaft, which is connected to the other side of the cleaning plate.

[0008] Preferably, a first connecting plate is provided on the first eccentric shaft, and the first eccentric shaft is rotatably connected to the driving eccentric disk; a second connecting plate is provided on the second eccentric shaft, and the second eccentric shaft is rotatably connected to the driven eccentric disk; the cleaning brush is also provided with an adjusting tube, a limiting spring, and a limiting bolt; the adjusting tube is located at the connection between the cleaning plate and the first and second eccentric shafts, and the adjusting tube is slidably engaged with the first and second eccentric shafts; the first and second eccentric shafts are provided with threaded holes corresponding to the limiting bolts, and the limiting bolts are threadedly engaged with the first and second eccentric shafts; the limiting spring is provided between the cleaning plate and the first connecting plate and the second connecting plate, and the limiting spring is located outside the adjusting tube.

[0009] Preferably, the drive assembly includes a drive gear, a driven gear, a third servo motor, and a synchronization assembly; the drive gear and the driven gear are located at the bottom of the worktable, the drive gear meshes with the driven gear, and the third servo motor is used to drive the drive gear to rotate; a drive shaft is located at the bottom of the drive eccentric disk, the drive shaft is rotatably connected to the worktable and passes through the worktable; the synchronization assembly is located between the drive gear and the drive shaft and between the driven gear and the drive shaft, and the synchronization assembly is used to drive the drive eccentric disks on both sides of the machining table.

[0010] Preferably, the drive assembly further includes a gear mounting housing; the gear mounting housing is located at the bottom of the worktable and surrounds the driving gear and the driven gear; the bottom of the driving gear and the driven gear are provided with a rotating shaft that is rotatably connected to the gear mounting housing; an L-shaped mounting plate is provided on the gear mounting housing, the mounting plate is fixedly connected to the bottom of the gear mounting housing, and the mounting plate is used to mount a third servo motor.

[0011] Preferably, the synchronization assembly includes a first synchronization pulley, a second synchronization pulley, a first synchronization belt, and a second synchronization belt; there are two first synchronization pulleys, with the drive shaft at the bottom of the active eccentric disk on one side of the processing table fixedly connected to one first synchronization pulley, and the rotating shaft at the bottom of the active gear rotatably connected to the gear mounting housing passing through the gear mounting housing and fixedly connected to the other first synchronization pulley; the first synchronization belt is fitted onto the two first synchronization pulleys; there are two second synchronization pulleys, with the drive shaft at the bottom of the active eccentric disk on the other side of the processing table fixedly connected to one second synchronization pulley, and the rotating shaft at the bottom of the driven gear rotatably connected to the gear mounting housing passing through the gear mounting housing and fixedly connected to the other second synchronization pulley; the second synchronization belt is fitted onto the two second synchronization pulleys.

[0012] Preferably, the clamping assembly includes a first lead screw, a first guide rod, a movable frame, a clamping claw, a first servo motor, and a flipping assembly; the first lead screw is a bidirectional lead screw, which is located at the bottom of the worktable; the first guide rod extends along the length of the first lead screw and is located at the bottom of the worktable; the movable frame is a portal frame, with its bottom slidably engaged with both the first lead screw and the first guide rod; a moving groove for the movable frame to pass through is provided on the worktable at the position corresponding to the movable frame; the first servo motor is located at the bottom of the worktable and is used to drive the first lead screw; the flipping assembly and the clamping claw are located at the top of the movable frame, and the clamping claw is connected to the flipping assembly.

[0013] Preferably, the flipping assembly includes a third connecting plate and a second servo motor; the gripping claw and the second servo motor are respectively disposed on both sides of the third connecting plate, the gripping claw is rotatably connected to the third connecting plate, and the second servo motor is used to drive the gripping claw to flip.

[0014] Preferably, the lifting assembly includes a lifting cylinder, a second lead screw, a second guide rod, a support plate, and a fourth servo motor. The top of the lifting cylinder has an opening, and the top of the lifting cylinder passes through the worktable. The worktable and the lifting cylinder are slidably engaged. The second lead screw and the second guide rod are located on both sides of the lifting cylinder. The support plate is located at the bottom of the worktable and abuts against the worktable. A slider is provided on the support plate at a position corresponding to the second lead screw and the second guide rod. The slider is slidably engaged with the second lead screw and the second guide rod. A moving groove for the slider to pass through is provided on the side wall of the lifting cylinder. The fourth servo motor is located at the bottom of the lifting cylinder and is used to drive the second lead screw.

[0015] Preferably, the workbench is further provided with a slag baffle, a first guide plate, and a second guide plate; the slag baffle is located on the side of the slag discharge chute away from the processing table; the first guide plate and the second guide plate are located at the bottom of the workbench, respectively on both sides of the slag discharge chute, and the second guide plate is longer than the first guide plate; the bottom of the first guide plate is provided with a first inclined plate extending downwards, the first inclined plate facing towards the direction close to the second guide plate, and the bottom of the second guide plate is provided with a second inclined plate extending downwards, the second inclined plate facing towards the direction close to the first guide plate. The first and second inclined plates are used to guide the waste slag falling between the first and second guide plates.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. The present invention is provided with a cleaning component and a clamping component. The clamping component is used to clamp the flange during milling to ensure the stability of the flange during milling. Furthermore, the clamping component can flip the flange after the machining table is lowered. The cleaning component is used to clean the debris and waste generated during milling after the machining table is lowered. The cleaning component can clean the debris and waste that fall on the machining table and worktable when the flange is flipped, so as to avoid the waste residue remaining on the machining table when the flange is flipped to mill the other side, which will affect the milling of the flange.

[0018] 2. This invention is equipped with a limit spring and a limit bolt. The cleaning plate slides with the first eccentric shaft and the second eccentric shaft through the adjusting tube. The limit spring is used to push the cleaning plate upward. The top of the first eccentric shaft and the second eccentric shaft are provided with threaded holes corresponding to the limit bolts. The limit bolts are threadedly connected to the first eccentric shaft and the second eccentric shaft. The top of the limit bolts abuts against the cleaning plate. The limit bolts are used to limit the height of the cleaning plate in the vertical direction. By tightening or loosening the limit bolts, the height of the cleaning plate can be adjusted to increase the contact area between the bristles and the worktable, thereby improving the cleaning effect of the bristles in sweeping up waste.

[0019] 3. The present invention is provided with a slag baffle plate, a first guide plate and a second guide plate. The slag baffle plate is used to block the swept waste slag to prevent the waste slag from flying directly over the slag discharge chute. After passing through the slag discharge chute, the waste slag falls between the first guide plate and the second guide plate. A container for collecting waste slag can be placed below the second guide plate to collect the waste slag that slides down the second inclined plate, thereby improving the waste slag collection efficiency. The first guide plate and the second guide plate guide the path of the waste slag to prevent the waste slag from remaining on the components at the bottom of the workbench. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a milling fixture for automotive heat exchanger pipe flanges.

[0021] Figure 2This is a schematic diagram of the three-dimensional structure of a milling fixture for automotive heat exchanger pipe flanges after the machining table has been lowered.

[0022] Figure 3 This is a three-dimensional structural diagram of the worktable and cleaning components of a milling fixture for automotive heat exchanger pipe flanges.

[0023] Figure 4 This is a three-dimensional structural diagram of a cleaning component for a milling fixture for automotive heat exchanger pipe flanges.

[0024] Figure 5 This is a three-dimensional structural diagram of a cleaning component of a milling fixture for automotive heat exchanger pipe flanges.

[0025] Figure 6 This is a three-dimensional structural diagram of a cleaning brush, active eccentric disc, and driven eccentric disc for a milling fixture for automotive heat exchanger pipe flanges.

[0026] Figure 7 This is the present invention. Figure 6 A magnified schematic diagram of the structure at point A.

[0027] Figure 8 This is a three-dimensional structural diagram of the worktable and clamping components of a milling fixture for automotive heat exchanger pipe flanges.

[0028] Figure 9 This is a cross-sectional view of the worktable and clamping assembly of a milling fixture for automotive heat exchanger pipe flanges.

[0029] Figure 10 This is the present invention. Figure 9 A magnified schematic diagram of the structure at point B.

[0030] The diagram is labeled as follows: 1. Workbench; 11. Machining table; 12. Lifting assembly; 121. Lifting cylinder; 122. Second lead screw; 123. Second guide rod; 124. Support plate; 125. Fourth servo motor; 13. Slag discharge chute; 14. Slag baffle plate; 15. First guide plate; 151. First inclined plate; 16. Second guide plate; 161. Second inclined plate; 2. Clamping assembly; 21. First lead screw; 22. First guide rod; 23. Moving frame; 24. Clamping claw; 25. First servo motor; 26. Tilting assembly; 261. Third connecting plate; 262. Second servo motor; 3. Cleaning assembly; 31. Cleaning 311. Brush; 312. Cleaning plate; 313. Adjusting tube; 314. Limiting spring; 315. Limiting bolt; 32. Active eccentric disc; 321. First eccentric shaft; 3211. First connecting plate; 322. Drive shaft; 33. Driven eccentric disc; 331. Second eccentric shaft; 3311. Second connecting plate; 34. Drive assembly; 341. Drive gear; 342. Driven gear; 343. Third servo motor; 344. Synchronization assembly; 3441. First synchronous pulley; 3442. Second synchronous pulley; 3443. First synchronous belt; 3444. Second synchronous belt; 345. Gear mounting housing; 3451. Mounting plate. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figure 1 , Figure 2 and Figure 9 A milling fixture for automotive heat exchanger pipe flanges includes a worktable 1, a clamping assembly 2, and a cleaning assembly 3. The worktable 1 is equipped with a machining table 11, a lifting assembly 12, and a slag discharge trough 13. The machining table 11 is positioned on the worktable 1 and is used to support the flange during milling. The lifting assembly 12 controls the raising and lowering of the machining table 11. The slag discharge trough 13 is located on both sides of the machining table 11 and is used to allow waste slag generated during milling to pass through. The clamping assembly 2 is positioned on the worktable 1 and is used to clamp the flange during milling. The clamping assembly 2 is capable of flipping the flange after the machining table 11 is lowered; the cleaning assembly 3 is set on the worktable 1 and is used to clean the waste generated during milling after the machining table 11 is lowered. The cleaning assembly 3 includes a cleaning brush 31, an active eccentric disk 32, a driven eccentric disk 33 and a drive assembly 34; the active eccentric disk 32 and the driven eccentric disk 33 are rotatably connected to the worktable 1 and are used to drive the cleaning brush 31 to move toward the slag discharge trough 13. The drive assembly 34 is used to drive the active eccentric disk 32.

[0033] The worktable 1 is supported by support legs at its bottom, which support the worktable 1 on the ground. The machining table 11 is a cylindrical structure located in the middle of the worktable 1. The machining table 11 is used to support the flange during milling. The lifting assembly 12 is located at the bottom of the worktable 1 and is used to control the vertical movement of the machining table 11. The slag discharge trough 13 is located on both sides of the machining table 11 and passes through the worktable 1. The clamping assembly 2 is located on both sides of the machining table 11 and is used to clamp the flange during milling, ensuring the stability of the flange during milling. In addition, the clamping assembly 2 can flip the flange after the machining table 11 is lowered. When the machining table 11 is raised, the other side of the flange can be milled, improving the milling efficiency of the flange. The cleaning assembly 3 is located on both sides of the machining table 11 and is used to clean the debris and waste generated during milling after the machining table 11 is lowered. Active eccentric disc 3. 2. The driven eccentric disk 33 is set on the worktable 1. The active eccentric disk 32 and the driven eccentric disk 33 are rotatably connected to the worktable 1. The drive assembly 34 is set at the bottom of the worktable 1. The drive assembly 34 is used to drive the active eccentric disk 32. The rotation of the active eccentric disk 32 drives the cleaning brush 31 and the driven eccentric disk 33. The cleaning brush 31 rotates around the central pad between the active eccentric disk 32 and the driven eccentric disk 33. The center point between the active eccentric disk 32 and the driven eccentric disk 33 is located between the slag discharge trough 13 and the processing table 11. During the rotation, the cleaning brush 31 can continuously sweep the debris and waste on the processing table 11 and the worktable 1 towards the slag discharge trough 13, thereby cleaning the debris and waste generated during milling. The cleaning assembly 3 can clean the debris and waste that fall on the processing table 11 and the worktable 1 when the flange is flipped, so as to avoid the waste residue remaining on the processing table 11 when the flange is flipped for milling on the other side, which will affect the milling of the flange.

[0034] Reference Figure 3 The cleaning brush 31 is equipped with a cleaning plate 311; the bottom of the cleaning plate 311 is equipped with bristles, which are used to clean the waste generated during milling; the active eccentric disk 32 is equipped with a first eccentric shaft 321, which is connected to one side of the cleaning plate 311; the driven eccentric disk 33 is equipped with a second eccentric shaft 331, which is connected to the other side of the cleaning plate 311.

[0035] The bottom of the brush bristles contacts the upper surface of the worktable 1. When the processing table 11 descends to its lowest point, the upper surface of the processing table 11 is flush with the upper surface of the worktable 1. When the brush bristles follow the movement of the cleaning plate 311, they can sweep the waste residue remaining on the worktable 1 and the processing table 11 toward the slag discharge trough 13. The first eccentric shaft 321 and the second eccentric shaft 331 both extend in the vertical direction. The first eccentric shaft 321 and the second eccentric shaft 331 are respectively inserted into the two sides of the cleaning plate 311. The drive assembly 34 drives the active eccentric disk 32 to rotate. The first eccentric shaft 321 rotates around the axis of the active eccentric disk 32. The first eccentric shaft 321 drives the cleaning plate 311 and the second eccentric shaft 331. The cleaning plate 311 rotates around the center point between the active eccentric disk 32 and the driven eccentric disk 33.

[0036] Reference Figure 6 and Figure 7 A first connecting plate 3211 is provided on the first eccentric shaft 321, and the first eccentric shaft 321 is rotatably connected to the driving eccentric disk 32; a second connecting plate 3311 is provided on the second eccentric shaft 331, and the second eccentric shaft 331 is rotatably connected to the driven eccentric disk 33; the cleaning brush 31 is also provided with an adjusting tube 312, a limiting spring 313, and a limiting bolt 314; the adjusting tube 312 is located at the connection between the cleaning plate 311 and the first eccentric shaft 321 and the second eccentric shaft 331. 312 is slidably engaged with the first eccentric shaft 321 and the second eccentric shaft 331; the first eccentric shaft 321 and the second eccentric shaft 331 are provided with threaded holes corresponding to the limiting bolts 314, and the limiting bolts 314 are threadedly engaged with the first eccentric shaft 321 and the second eccentric shaft 331; the limiting spring 313 is disposed between the cleaning plate 311 and the first connecting plate 3211 and the cleaning plate 311 and the second connecting plate 3311, and the limiting spring 313 is located outside the adjusting tube 312.

[0037] The first connecting plate 3211 is located at the bottom of the first eccentric shaft 321 and is rotatably connected to the driving eccentric disk 32. The second connecting plate 3311 is located at the bottom of the second eccentric shaft 331 and is rotatably connected to the driven eccentric disk 33. The adjusting tube 312 is located at the bottom of the cleaning plate 311 and extends vertically. The adjusting tube 312 slides vertically with the first eccentric shaft 321 and the second eccentric shaft 331. The top of the limiting spring 313 is fixedly connected to the cleaning plate 311, and the bottom of the limiting spring 313 is connected to the first connecting plate 3211 and the second connecting plate 3211. 3311 is fixedly connected, and the limiting spring 313 is used to push the cleaning plate 311 upward. The top of the first eccentric shaft 321 and the second eccentric shaft 331 are provided with threaded holes corresponding to the limiting bolts 314. The limiting bolts 314 are threadedly connected to the first eccentric shaft 321 and the second eccentric shaft 331. The top of the limiting bolts 314 abuts against the cleaning plate 311. The limiting bolts 314 are used to limit the height of the cleaning plate 311 in the vertical direction. By tightening or loosening the limiting bolts 314, the height of the cleaning plate 311 can be adjusted to increase the contact area between the bristles and the worktable 1, thereby improving the cleaning effect of the bristles on sweeping up waste.

[0038] Reference Figures 3-5 The drive assembly 34 includes a drive gear 341, a driven gear 342, a third servo motor 343, and a synchronization assembly 344. The drive gear 341 and the driven gear 342 are located at the bottom of the worktable 1, with the drive gear 341 meshing with the driven gear 342. The third servo motor 343 is used to drive the drive gear 341 to rotate. The bottom of the drive eccentric disk 32 is provided with a drive shaft 322, which is rotatably connected to the worktable 1 and passes through the worktable 1. The synchronization assembly 344 is located between the drive gear 341 and the drive shaft 322, as well as between the driven gear 342 and the drive shaft 322. The synchronization assembly 344 is used to drive the drive eccentric disks 32 on both sides of the machining table 11.

[0039] The driving gear 341 and the driven gear 342 mesh, and the third servo motor 343 drives the driving gear 341 to rotate. The driving gear 341 drives the driven gear 342. The drive shaft 322 is fixedly connected to the bottom of the driving eccentric disk 32. The drive shaft 322 extends in the vertical direction and is rotatably connected to the worktable 1 and passes through the worktable 1. The driving gear 341 drives the drive shaft 322 at the bottom of the driving eccentric disk 32 on one side of the processing table 11 through the synchronization component 344. The driven gear 342 drives the drive shaft 322 at the bottom of the driving eccentric disk 32 on the other side of the processing table 11 through the synchronization component 344.

[0040] Reference Figure 4The drive assembly 34 also includes a gear mounting housing 345; the gear mounting housing 345 is disposed at the bottom of the worktable 1, and the gear mounting housing 345 surrounds the drive gear 341 and the driven gear 342; the bottom of the drive gear 341 and the driven gear 342 are provided with a rotating shaft that is rotatably connected to the gear mounting housing 345; an L-shaped mounting plate 3451 is provided on the gear mounting housing 345, the mounting plate 3451 is fixedly connected to the bottom of the gear mounting housing 345, and the mounting plate 3451 is used to mount the third servo motor 343.

[0041] The gear mounting housing 345 is bolted to the bottom of the workbench 1. The gear mounting housing 345 surrounds the driving gear 341 and the driven gear 342. The upper and lower sides of the driving gear 341 and the driven gear 342 are rotatably connected to the workbench 1 and the gear mounting housing 345, respectively. The mounting plate 3451 is set at the bottom of the gear mounting housing 345 corresponding to the position of the driving gear 341. The mounting plate 3451 is used to mount the third servo motor 343.

[0042] Reference Figure 4 and Figure 5 The synchronization assembly 344 includes a first synchronization pulley 3441, a second synchronization pulley 3442, a first synchronization belt 3443, and a second synchronization belt 3444. There are two first synchronization pulleys 3441. The drive shaft 322 at the bottom of the active eccentric disk 32 on one side of the processing table 11 is fixedly connected to one of the first synchronization pulleys 3441. The rotating shaft at the bottom of the active gear 341, which is rotatably connected to the gear mounting housing 345, passes through the gear mounting housing 345 and is fixedly connected to the other first synchronization pulley 3441. The first synchronization belt 3443 is fitted onto the two first synchronization pulleys 3441. There are two second synchronization pulleys 3442. The drive shaft 322 at the bottom of the active eccentric disk 32 on the other side of the processing table 11 is fixedly connected to one of the second synchronization pulleys 3442. The rotating shaft at the bottom of the driven gear 342, which rotates with the gear mounting housing 345, passes through the gear mounting housing 345 and is fixedly connected to the other second synchronization pulley 3442. The second synchronization belt 3444 is fitted onto the two second synchronization pulleys 3442.

[0043] A first synchronous pulley 3441 is mounted on the drive shaft 322 at the bottom of the driving eccentric disk 32 on one side of the machining table 11, and another first synchronous pulley 3441 is mounted on the rotating shaft at the bottom of the driving gear 341. A first synchronous belt 3443 is fitted onto the two first synchronous pulleys 3441. A second synchronous pulley 3442 is mounted on the drive shaft 322 at the bottom of the driving eccentric disk 32 on the other side of the machining table 11, and another second synchronous pulley 3442 is mounted on the rotating shaft at the bottom of the driven gear 342. A second synchronous belt 3444 is fitted onto the two second synchronous pulleys 3442. The motor shaft of the third servo motor 343 passes through the mounting plate 3451 and is fixedly connected to the first synchronous wheel 3441 at the bottom of the drive gear 341. The third servo motor 343 drives the drive gear 341 and the first synchronous wheel 3441 at the bottom of the drive gear 341 to rotate. The drive gear 341 meshes with the driven gear 342. The drive gear 341 and the driven gear 342 drive the drive shaft 322 at the bottom of the drive eccentric disk 32 on both sides of the processing table 11 to rotate through the first synchronous belt 3443 and the second synchronous belt 3444. The drive shaft 322 drives the drive eccentric disk 32 to rotate.

[0044] Reference Figure 8 and Figure 9 The clamping assembly 2 includes a first lead screw 21, a first guide rod 22, a moving frame 23, a clamping claw 24, a first servo motor 25, and a flipping assembly 26. The first lead screw 21 is a bidirectional lead screw and is located at the bottom of the worktable 1. The first guide rod 22 extends along the length of the first lead screw 21 and is located at the bottom of the worktable 1. The moving frame 23 is a portal frame, and its bottom is slidably engaged with the first lead screw 21 and the first guide rod 22. A moving groove is provided on the worktable 1 at the position corresponding to the moving frame 23 for the moving frame 23 to pass through. The first servo motor 25 is located at the bottom of the worktable 1 and is used to drive the first lead screw 21. The flipping assembly 26 and the clamping claw 24 are located on the top of the moving frame 23, and the clamping claw 24 is connected to the flipping assembly 26.

[0045] A vertical plate is provided at the bottom of the worktable 1, corresponding to the positions of the first lead screw 21 and the first guide rod 22. A rotating groove is provided on the vertical plate near the first lead screw 21 and the first guide rod 22. The two ends of the first lead screw 21 are rotatably connected to the rotating groove, and the two ends of the first guide rod 22 are fixedly connected to the rotating groove. A first servo motor 25 is provided on the side of the vertical plate away from the first lead screw 21. The motor shaft of the first servo motor 25 passes through the vertical plate and is fixedly connected to the first lead screw 21. The first servo motor 25 is used to drive the first lead screw 21 to rotate. There are two moving frames 23, which are located on both sides of the worktable 11. The bottom of the moving frames 23 slides with the first lead screw 21 and the first guide rod 22. The first lead screw 21 drives the moving frame 23 to move closer to or further away from the machining table 11. The first guide rod 22 guides the direction of movement of the moving frame 23 to prevent relative rotation between the moving frame 23 and the first lead screw 21. The worktable 1 is provided with a moving groove for the moving frame 23 to pass through at the position corresponding to the moving frame 23. The clamping claw 24 and the flipping assembly 26 are provided on the top of the moving frame 23. The clamping claw 24 is connected to the flipping assembly 26. The clamping claw 24 is used to clamp and fix the flange. The flipping assembly 26 is used to flip the clamping claw 24. The clamping claw 24 drives the flange to flip, which facilitates the quick flipping of the flange for milling on the other side and improves the milling efficiency of the flange.

[0046] Reference Figure 9 The flipping assembly 26 includes a third connecting plate 261 and a second servo motor 262; the gripping claw 24 and the second servo motor 262 are respectively disposed on both sides of the third connecting plate 261, the gripping claw 24 is rotatably connected to the third connecting plate 261, and the second servo motor 262 is used to drive the gripping claw 24 to flip.

[0047] A rotating groove is provided on the side of the third connecting plate 261 near the clamping claw 24. The clamping claw 24 is rotatably connected to the rotating groove. The motor shaft of the second servo motor 262 passes through the third connecting plate 261 and is fixedly connected to the clamping claw 24. The second servo motor 262 is used to drive the clamping claw 24 to rotate. The clamping claw 24 drives the flange to rotate, which facilitates the rapid flipping of the flange for milling on the other side, thereby improving the milling efficiency of the flange.

[0048] Reference Figure 9 and Figure 10The lifting assembly 12 includes a lifting cylinder 121, a second lead screw 122, a second guide rod 123, a support plate 124, and a fourth servo motor 125. The top of the lifting cylinder 121 has an opening, and the top of the lifting cylinder 121 passes through the worktable 1. The processing table 11 is slidably engaged with the lifting cylinder 121. The second lead screw 122 and the second guide rod 123 are located on both sides of the lifting cylinder 121. The support plate 124 is located at the bottom of the processing table 11 and abuts against the processing table 11. A slider is provided on the support plate 124 at the position corresponding to the second lead screw 122 and the second guide rod 123. The slider is slidably engaged with the second lead screw 122 and the second guide rod 123. A moving groove for the slider to pass through is provided on the side wall of the lifting cylinder 121. The fourth servo motor 125 is located at the bottom of the lifting cylinder 121 and is used to drive the second lead screw 122.

[0049] The lifting cylinder 121 extends vertically, and the processing table 11 is slidably engaged with the lifting cylinder 121. The support plate 124 is set at the bottom of the processing table 11 to support it. The second lead screw 122 and the second guide rod 123 extend vertically. The top of the second lead screw 122 is rotatably connected to the worktable 1, and the bottom of the second lead screw 122 is rotatably connected to the bottom of the lifting cylinder 121. The top of the second guide rod 123 is fixedly connected to the worktable 1, and the bottom of the second guide rod 123 is fixedly connected to the bottom of the lifting cylinder. The support plate 124 has sliders on both sides that are slidably engaged with the second lead screw 122 and the second guide rod 123, respectively. The fourth servo motor 125 drives the second lead screw 122 to rotate. The second lead screw 122 controls the lifting of the lifting plate, and the second guide rod 123 guides the direction of movement of the support plate 124. The support plate 124 supports the processing table 11, and the height of the support plate 124 is controlled by the second lead screw 122, thereby controlling the lifting of the processing table 11.

[0050] Reference Figure 10 The workbench 1 is also equipped with a slag baffle 14, a first guide plate, and a second guide plate. The slag baffle 14 is located on the side of the slag discharge trough 13 away from the processing table 11. The first guide plate and the second guide plate are located at the bottom of the workbench 1, respectively on both sides of the slag discharge trough 13, and the second guide plate is longer than the first guide plate. The bottom of the first guide plate is provided with a first inclined plate 151 extending downwards, with the first inclined plate 151 facing towards the direction close to the second guide plate. The bottom of the second guide plate is provided with a second inclined plate 161 extending downwards, with the second inclined plate 161 facing towards the direction close to the first guide plate. The first inclined plate 151 and the second inclined plate 161 are used to guide the waste slag falling between the first guide plate and the second guide plate.

[0051] A baffle plate 14 is installed on the side of the slag discharge trough 13 away from the processing table 11. The baffle plate 14 extends vertically and is used to block the waste slag that is swept in, preventing the waste slag from flying directly over the slag discharge trough 13. After passing through the slag discharge trough 13, the waste slag falls between the first guide plate and the second guide plate. The first inclined plate 151 is located at the bottom of the first guide plate and is used to guide the waste slag to the second guide plate. The second inclined plate 161 is located at the bottom of the second guide plate. A container for collecting waste slag can be placed below the second inclined plate 161 to collect the waste slag that slides off the second inclined plate 161. The first guide plate and the second guide plate guide the path of the waste slag to prevent the waste slag from remaining on the parts at the bottom of the worktable 1. The first guide plate and the second guide plate also facilitate the collection of waste slag, improving the waste slag collection efficiency.

[0052] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A milling fixture for automotive heat exchanger pipe flanges, comprising a worktable, a clamping assembly, and a cleaning assembly, characterized in that, The workbench is equipped with a processing table, a lifting assembly, and a slag discharge chute. The machining table is set on the workbench and is used to support the flange during milling. The lifting assembly is used to control the lifting of the processing table; The slag discharge troughs are located on both sides of the machining table and are used to allow waste slag generated during milling to pass through. The clamping assembly is set on the worktable and is used to clamp the flange during milling. The clamping assembly can also flip the flange after the machining table is lowered. The cleaning component is set on the worktable and is used to clean up the waste generated during milling after the machining table is lowered. The cleaning components include a cleaning brush, an active eccentric disc, a driven eccentric disc, and a drive assembly; The active eccentric disc and the driven eccentric disc are rotatably connected to the worktable. The active eccentric disc and the driven eccentric disc are used to drive the cleaning brush to move towards the slag discharge trough. The drive component is used to drive the active eccentric disk; The cleaning brush is equipped with a cleaning plate; The bottom of the cleaning plate is equipped with bristles, which are used to clean up the waste generated during milling. The active eccentric disc is provided with a first eccentric shaft, which is connected to one side of the cleaning plate; A second eccentric shaft is provided on the driven eccentric disc, and the second eccentric shaft is connected to the other side of the cleaning plate; A first connecting plate is provided on the first eccentric shaft, and the first eccentric shaft is rotatably connected to the active eccentric disk. A second connecting plate is provided on the second eccentric shaft, and the second eccentric shaft is rotatably connected to the driven eccentric disk. The cleaning brush is also equipped with an adjustment tube, a limit spring, and a limit bolt. The adjusting tube is located at the connection between the cleaning plate and the first eccentric shaft and the second eccentric shaft, and the adjusting tube is in sliding fit with the first eccentric shaft and the second eccentric shaft; The first eccentric shaft and the second eccentric shaft are provided with threaded holes corresponding to the limit bolts, and the limit bolts are threadedly engaged with the first eccentric shaft and the second eccentric shaft. The limiting spring is set between the cleaning plate and the first connecting plate, as well as between the cleaning plate and the second connecting plate, and the limiting spring is located on the outside of the adjusting tube; The drive components include a drive gear, a driven gear, a third servo motor, and a synchronization component; The driving gear and driven gear are located at the bottom of the worktable. The driving gear meshes with the driven gear, and the third servo motor is used to drive the driving gear to rotate. The bottom of the active eccentric disk is equipped with a drive shaft, which is rotatably connected to the worktable and passes through the worktable. The synchronization component is located between the driving gear and the drive shaft, as well as between the driven gear and the drive shaft. The synchronization component is used to drive the driving eccentric discs on both sides of the machining table.

2. The milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that, The drive assembly also includes a gear mounting housing; The gear mounting housing is located at the bottom of the worktable, and the gear mounting housing surrounds the driving gear and the driven gear; The bottom of both the driving gear and the driven gear is provided with a rotating shaft that is rotatably connected to the gear mounting housing. An L-shaped mounting plate is provided on the gear mounting housing. The mounting plate is fixedly connected to the bottom of the gear mounting housing and is used to mount the third servo motor.

3. A milling fixture for automotive heat exchanger pipe flanges according to claim 2, characterized in that, The synchronization components include a first synchronization pulley, a second synchronization pulley, a first synchronization belt, and a second synchronization belt; The first synchronization pulley has two; The drive shaft at the bottom of the active eccentric disk on one side of the processing table is fixedly connected to a first synchronous pulley; The rotating shaft at the bottom of the drive gear, which is rotatably connected to the gear mounting housing, passes through the gear mounting housing and is fixedly connected to another first synchronous pulley. The first timing belt is fitted onto the two first timing pulleys; The second synchronization pulley has two; The drive shaft at the bottom of the active eccentric disc on the other side of the processing table is fixedly connected to a second synchronous pulley; The rotating shaft that rotates from the bottom of the driven gear to the gear mounting housing passes through the gear mounting housing and is fixedly connected to another second synchronous gear. The second timing belt is fitted onto the two second timing pulleys.

4. A milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that, The clamping assembly includes a first lead screw, a first guide rod, a moving frame, a clamping jaw, a first servo motor, and a flipping assembly; The first lead screw is a two-way lead screw, and the first lead screw is located at the bottom of the worktable; The first guide rod extends along the length of the first lead screw and is located at the bottom of the worktable; The movable frame is a portal-shaped support, and the bottom of the movable frame is slidably engaged with the first lead screw and the first guide rod respectively; The workbench is equipped with a moving slot for the moving frame to pass through at the corresponding position; The first servo motor is located at the bottom of the worktable and is used to drive the first lead screw. The flipping assembly and gripper are located on top of the moving frame, with the gripper connected to the flipping assembly.

5. A milling fixture for automotive heat exchanger pipe flanges according to claim 4, characterized in that, The flipping assembly includes a third connecting plate and a second servo motor; The gripper and the second servo motor are respectively located on both sides of the third connecting plate. The gripper is rotatably connected to the third connecting plate, and the second servo motor is used to drive the gripper to rotate.

6. A milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that, The lifting assembly includes a lifting cylinder, a second lead screw, a second guide rod, a support plate, and a fourth servo motor; The top of the lifting cylinder has an opening, and the top of the lifting cylinder passes through the worktable, with the worktable and the lifting cylinder slidingly engaged. The second lead screw and the second guide rod are located on both sides of the lifting cylinder; The support plate is located at the bottom of the processing table and abuts against the processing table; A slider is provided on the support plate at the position corresponding to the second lead screw and the second guide rod. The slider slides in cooperation with the second lead screw and the second guide rod. The side wall of the lifting cylinder is provided with a moving groove for the slider to pass through. The fourth servo motor is located at the bottom of the lifting cylinder and is used to drive the second lead screw.

7. A milling fixture for automotive heat exchanger pipe flanges according to claim 1, characterized in that, The workbench is also equipped with a slag baffle, a first guide plate, and a second guide plate; The slag baffle is installed on the side of the slag discharge chute away from the processing table; The first guide plate and the second guide plate are set at the bottom of the workbench. The first guide plate and the second guide plate are located on both sides of the slag discharge chute, and the second guide plate is longer than the first guide plate. The bottom of the first guide plate is provided with a first inclined plate that extends downwards. The first inclined plate faces the direction closer to the second guide plate; The bottom of the second guide plate is provided with a second inclined plate that extends downwards. The second inclined plate faces the direction closer to the first guide plate; The first and second inclined plates are used to guide the waste falling between the first and second guide plates.

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