A milling device for milling a slot of a broken bridge aluminum door and window

Abstract

This invention relates to the field of aluminum profile processing technology for doors and windows, specifically a milling processing device for grooves in thermally broken aluminum doors and windows. The device includes a processing table, a three-axis moving platform mounted on top of the processing table, and a horizontal clamping seat fixedly connected to the top of the processing table. A head assembly is fixedly connected to the front of the moving worktable of the three-axis moving platform. The head assembly mainly consists of a two-end positioning system, a movable four-way clamping mechanism, a floating adaptive structure, and a circumferential rotating head. The horizontal clamping seat, in conjunction with a two-way lead screw, drives two compensating frames to axially press and fix both ends of the profile through end plates. The workpiece fixed end, which can move axially along the profile, is clamped from four directions by upper and lower main jaws and front and rear side jaws, with the support landing point close to the milling area. The middle frame can float and adjust back and forth to adapt to the concave and convex shapes of the profile's outer edge. The main spindle head assembly can rotate circumferentially along the ring frame to feed at different angles, thereby achieving the effect of completing multi-sided groove processing with a single clamping operation.

Description

Technical Field

[0001] This invention relates to the field of aluminum material processing technology for doors and windows, specifically to a milling processing device for the groove of thermally broken aluminum doors and windows. Background Technology

[0002] As is well known, the milling of aluminum alloy door and window grooves mainly targets key grooves such as corner code grooves, drainage grooves, and locking point grooves. It is completed by relying on milling machines, CNC machining centers and other equipment. It is a processing step that ensures the splicing of door and window profiles, hardware assembly, drainage sealing and overall accuracy and sealing performance. Before processing, the profiles need to be straightened and leveled to prevent bent or out-of-tolerance workpieces from being put on the machine. At the same time, a special aluminum alloy large chip removal groove carbide end mill is selected. According to the groove shape, straight shank end mills, form mills, three-sided end mills and other tools are matched. With the help of micro-oil mist, emulsion or alcohol spray cooling method, the sticking, chipping, scratches on the profile paint surface and high temperature oxidation problems are effectively avoided.

[0003] Existing technology is limited by the fact that the surface of the aluminum alloy window and door profiles needs to be machined with grooves on multiple sides during the processing. The workpiece needs to be flipped frequently during the processing. When the workpiece is flipped, the stress state of the stress position of the workpiece will change. At the same time, the profiles are relatively light and usually long strips, and the vibration during processing is difficult to suppress, which may lead to milling groove size errors and serious burrs, making it inconvenient to use. Based on the above-mentioned situation, we found that it is difficult to avoid the above problems at the same time when milling the groove of thermally broken aluminum doors and windows in the existing technology. Therefore, we propose a milling device for the groove of thermally broken aluminum doors and windows that avoids the change of the stress state of the workpiece due to frequent workpiece flipping, and can also assist in supporting and reducing the vibration of the milling area to improve the processing accuracy. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a milling processing device for the groove of thermally broken aluminum doors and windows. This device avoids changes in the stress state of the workpiece caused by frequent workpiece flipping and can also assist in supporting and reducing vibration in the milling area to improve processing accuracy.

[0005] (II) Technical Solution The above-mentioned technical objective of the present invention is achieved through the following technical solution: a milling processing device for the groove of thermally broken aluminum doors and windows, including a processing table, a three-axis moving platform installed on the top of the processing table, a horizontal clamp fixedly connected to the top of the processing table, a machine head assembly fixedly connected to the front side of the moving worktable of the three-axis moving platform, compensation frames movably connected to both sides of the top of the horizontal clamp, end plates fixedly connected to the opposite side of the two compensation frames, and workpiece fixing ends provided on the opposite side of the two compensation frames; The workpiece fixing end includes a main outer frame and two main jaws rotatably connected to the top and bottom of the main outer frame. Two floating frames are movably connected to the top and bottom of the inner side of the main outer frame. A pusher is fixedly connected to the side of the two top floating frames away from the main jaws. A first electric cylinder is fixedly connected to the inner side of the pusher. A middle frame is fixedly connected to the telescopic end of the first electric cylinder. A first side beam is movably connected to the top and bottom of the inner side of the middle frame. The two first side beams are rotatably connected to the two main jaws on the side closest to the two main jaws. A driven slide is fixedly connected to both sides of the inner side of the main outer frame. The top and bottom of the middle frame are slidably connected to the inner side of the top and bottom floating frames, respectively. A second electric cylinder is fixedly connected to the side of the middle frame away from the main jaws. A tail frame is fixedly connected to the telescopic end of the second electric cylinder. Side jaws are rotatably connected to the front and rear sides of the middle frame. Two second side beams are rotatably connected to the side of the tail frame near the side jaws. The two second side beams are rotatably connected to the two side jaws, respectively. The side claws, on the side away from the middle frame, and the main claws, on the side away from the main outer frame, are both rotatably connected to clamps.

[0006] Using the above technical solution, a horizontal clamp is set up to install two compensation frames, ensuring that the two compensation frames can always remain coaxial and move horizontally along the horizontal clamp. During use, the profile to be milled can be placed between the two fixed ends of the workpiece. Then, the two compensation frames move synchronously towards the center, and the end plates press against both ends of the profile for initial fixation. Following the slotting path of the cutting tool, the two fixed ends of the workpiece are moved horizontally along the compensation frames to the pre-opened slot position. A first electric cylinder pulls the middle frame horizontally along the floating frame, and the two connected first side beams pull the top and bottom main jaws synchronously towards the top and bottom of the profile, further fixing the profile through clamping contact. When the cutting point is close to the slot opening, the vibration amplitude is large due to the lack of support at the cutting position during the lowering of the head assembly for milling. At the same time, the milling position is always suspended. This avoids the need to move the profile itself when machining through holes or slotting from the side. Then, the tail frame is moved by the second electric cylinder. The second side beam connected to the tail frame will pull the side claws and clamping plates to further clamp the profile from the front and rear sides to provide auxiliary fixation. It can also provide good support when milling from the front and rear sides of the profile. As the position of the slot to be machined changes, the main claw and side claws can be opened as needed and moved to the corresponding support position required for the subsequent slot because the two ends of the profile are limited by the end plates.

[0007] The present invention is further configured such that a claw pad is fixedly connected to the outer side of the clamping piece, and the claw pad is made of silicone material.

[0008] By adopting the above technical solution, the use of silicone claw pads can avoid scratches caused by direct contact between the rigid structure and the profile. At the same time, it can also play a role in anti-slip, and the silicone material also has a certain vibration absorption effect.

[0009] The present invention is further configured such that: a clamping drive motor is fixedly connected to the right side of the horizontal clamp, a bidirectional lead screw is rotatably connected to the inner side of the horizontal clamp, the outer side of the bidirectional lead screw is threadedly connected to two compensation frames respectively, the bottom of the compensation frame is slidably connected to the horizontal clamp, and the output end of the clamping drive motor is fixedly connected to the right end of the bidirectional lead screw.

[0010] By adopting the above technical solution, the clamping drive motor can drive the bidirectional lead screw to rotate in either forward or reverse direction, thereby driving the two compensation frames connected to it to move closer or further away synchronously.

[0011] The present invention is further configured such that: a sliding frame is slidably connected to the top of the compensation frame, and a hollow frame is fixedly connected to the side of the sliding frame near the fixed end of the workpiece, and the two sets of hollow frames are respectively fixedly connected to the two main outer frames.

[0012] By adopting the above technical solution, a sliding frame can be set to slide horizontally along the top of the compensation frame. The hollow frame connected to the main outer frame is used to drive the horizontal displacement of the fixed end of the workpiece, so as to control the landing position of the clamping support.

[0013] The invention is further configured such that: a control servo motor is fixedly connected to each of the two end plates on opposite sides; a control screw is fixedly connected to the output end of the control servo motor; the section of the control screw away from the control servo motor is rotatably connected to the compensation frame; and the outer sides of the two control screws are threadedly connected to two sliding frames respectively.

[0014] By adopting the above technical solution, a control servo motor is set to drive the control screw to rotate, thereby enabling the sliding frame connected to it to be driven by the screw to move horizontally, so as to achieve the purpose of moving the fixed end of the workpiece.

[0015] The present invention is further configured such that: a first floating groove is provided at the top and bottom of the inner side of the main outer frame, and a second floating groove is provided at the top and bottom of the inner side of the middle frame; the inner side of the first floating groove is slidably connected to the floating frame, and the inner side of the second floating groove is slidably connected to the first side beam.

[0016] By adopting the above technical solution, by setting the first floating groove in conjunction with the second floating groove, the outer edge shape of the profile may be concave or convex due to process requirements, so the middle frame can have a certain front-to-back horizontal space. When the middle frame moves, the floating frame that is slidably connected to it can also move synchronously along the first floating groove. Similarly, the first side beam will also move synchronously with the middle frame, and will have a limiting effect along the second floating groove during the movement.

[0017] The invention is further configured such that: a longitudinal frame is slidably connected between two driven carriages, a longitudinal servo motor is installed on the inner side of the longitudinal frame, a drive screw is rotatably connected to the inner side of the longitudinal frame, the output end of the longitudinal servo motor is fixedly connected to the drive screw, and the outer side of the drive screw is threadedly connected to the middle frame.

[0018] By adopting the above technical solution, a longitudinal frame can be set up to move horizontally together with the driven slide, and a longitudinal servo motor connected to it can drive the drive screw connected to it, thereby controlling the position adjustment of the connected middle frame forward or backward.

[0019] The present invention is further configured such that: the head assembly includes a back frame, a ring frame is fixedly connected to the front side of the back frame, a sliding sleeve is slidably connected to the outer side of the ring frame, a shield is provided on the outer side of the sliding sleeve, and a main shaft head assembly is provided on the front side of the shield.

[0020] By adopting the above technical solution, a back frame is set up to install the head assembly on the front side of the moving worktable of the three-axis moving platform. The spindle head assembly connected to it can rotate circumferentially along the ring frame together with the shield and the sliding sleeve. This allows the entire spindle head assembly to rotate circumferentially along the outer periphery of the workpiece to adjust the feed direction and perform feed actions, thereby changing the feed position of the milling cutter. This avoids workpiece movement and flipping, and reduces errors caused by frequent changes in the force on the workpiece.

[0021] The present invention is further configured such that: a connecting plate is fixedly connected to the front side of the sliding sleeve, a protective shell is fixedly connected to the front side of the connecting plate, and the outer side of the protective shell is fixedly connected to the shield.

[0022] By adopting the above technical solution, a connecting plate is set to cooperate with the protective shell to connect the sliding sleeve and the shield. The shield can also prevent the cutting chips from getting stuck between the structures when they fall.

[0023] The present invention is further configured such that: an annular frame is fixedly connected to the inner side of the ring frame, the inner side of the annular frame is provided with mating teeth, a drive servo motor is fixedly connected to the inner side of the protective shell, and a gear is fixedly connected to the output end of the drive servo motor, the gear and the mating teeth meshing together.

[0024] By adopting the above technical solution, the drive servo motor can be set to rotate circumferentially along the annular frame through the meshing of gears and mating teeth. The entire drive servo motor, together with the protective shell, sliding sleeve and shield connected to it, can rotate together through the meshing of gears and mating teeth.

[0025] (III) Beneficial Effects Compared with the prior art, the present invention provides a milling processing device for the groove of thermally broken aluminum doors and windows, which has the following beneficial effects: This milling device for slots in thermally broken aluminum windows and doors uses a horizontal clamp to mount two compensating frames, ensuring the two frames remain coaxial and move horizontally along the clamp. In use, the profile to be milled is placed between the two fixed ends of the workpiece. The two compensating frames then move synchronously towards the center, initially securing the profile by pressing against both ends with end plates. Following the slotting path, the two fixed ends of the workpiece move horizontally along the compensating frames to the pre-opened slot position. A first electric cylinder pulls the central frame horizontally along the floating frame, causing the two connected first side beams to pull the top and bottom main jaws towards the top and bottom of the profile, further securing them by clamping plates. The profile is positioned close to the slot opening, reducing vibration caused by insufficient support at the cutter head during milling. The milling position remains suspended, preventing movement of the profile itself when machining through holes or grooving from the side. The tail frame is then moved by the second electric cylinder, and the second side beam connected to the tail frame pulls the side claws and clamping plates to further clamp the profile from the front and rear, providing auxiliary fixation. This also provides good support when milling from the front and rear. As the slot position changes, the main claw and side claws can be opened and moved to the appropriate support position required for the subsequent slot, as the end plates limit the profile's ends. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the connection of the sliding frame in this invention; Figure 3 This is a schematic diagram of the structure of the workpiece fixing end in this invention; Figure 4 This is a schematic diagram of the internal structure of the sliding sleeve in this invention; Figure 5 This is a schematic diagram of the connection of the horizontal clamp in this invention; Figure 6 This is a schematic diagram of the structure of the head assembly in this invention; Figure 7 This is a schematic diagram of the external structure of the head assembly in this invention.

[0027] In the diagram: 1. Machining table; 2. Three-axis moving platform; 3. Horizontal clamp; 4. Head assembly; 41. Back frame; 42. Ring frame; 43. Sliding sleeve; 44. Shield; 45. Spindle head assembly; 5. Compensating frame; 6. Workpiece fixing end; 61. Overall outer frame; 62. Floating frame; 63. Main jaw; 64. Push frame; 65. First electric cylinder; 66. Middle frame; 67. First side beam; 68. Driven slide; 69. Second electric cylinder; 610. Tail frame; 11. Side claw; 612. Second side beam; 7. Clamping piece; 8. Claw pad; 9. Bidirectional lead screw; 10. Clamping drive motor; 11. Sliding frame; 12. Hollow frame; 13. Control servo motor; 14. Control lead screw; 15. First floating groove; 16. Second floating groove; 17. Longitudinal frame; 18. Drive screw; 19. Connecting plate; 20. Protective shell; 21. Annular frame; 22. Drive servo motor; 23. Longitudinal servo motor; 24. End piece. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1 Please see Figure 1-7 A milling processing device for the groove of thermally broken aluminum doors and windows includes a processing table 1, a three-axis moving platform 2 installed on the top of the processing table 1, a horizontal clamp 3 fixedly connected to the top of the processing table 1, a machine head assembly 4 fixedly connected to the front side of the moving worktable of the three-axis moving platform 2, and compensation frames 5 movably connected to both sides of the top of the horizontal clamp 3. End pieces 24 are fixedly connected to the opposite side of the two compensation frames 5, and workpiece fixing ends 6 are provided on the opposite side of the two compensation frames 5. The workpiece fixing end 6 includes a main outer frame 61 and two main jaws 63 rotatably connected to the top and bottom of the main outer frame 61. Two floating frames 62 are movably connected to the top and bottom of the inner side of the main outer frame 61. A pusher 64 is fixedly connected to the side of the two top floating frames 62 away from the main jaws 63. A first electric cylinder 65 is fixedly connected to the inner side of the pusher 64. A middle frame 66 is fixedly connected to the telescopic end of the first electric cylinder 65. First side beams 67 are movably connected to the top and bottom of the inner side of the middle frame 66. The sides of the two first side beams 67 closest to the two main jaws 63 are respectively connected to the two main jaws 63. Rotary connection, driven slide 68 is fixedly connected to both sides of the inner side of the main outer frame 61, the top and bottom of the middle frame 66 are slidably connected to the inner side of the top and bottom floating frame 62 respectively, the side of the middle frame 66 away from the main claw 63 is fixedly connected to the second electric cylinder 69, the telescopic end of the second electric cylinder 69 is fixedly connected to the tail frame 610, the front and rear sides of the middle frame 66 are rotatably connected to the side claw 611, and the side of the tail frame 610 near the side claw 611 is rotatably connected to two second side beams 612, and the two second side beams 612 are rotatably connected to the two side claws 611 respectively; The side claw 611 away from the middle frame 66 and the main claw 63 away from the main outer frame 61 are both rotatably connected to clamping pieces 7; By setting a horizontal clamp 3 to install two compensation frames 5, and ensuring that the two compensation frames 5 can always remain coaxial and move horizontally along the horizontal clamp 3, the profile to be milled can be placed between the two workpiece fixed ends 6 during use. Then, the two compensation frames 5 move towards the center synchronously, and are initially fixed by the end plates 24 pressing against both ends of the profile. Then, according to the slotting path of the cutting tool, the two workpiece fixed ends 6 on both sides move horizontally along the compensation frames 5 to the pre-opened position of the slot. The first electric cylinder 65 pulls the middle frame 66 to move horizontally along the floating frame 62. The two first side beams 67 connected to it pull the top and bottom main claws 63 to move synchronously towards the top and bottom of the profile, and are further fixed by the clamping plates 7, and the landing point is close to the slot. When the head assembly 4 is lowered for milling, the lack of support at the cutting position causes significant vibration. Simultaneously, the milling position remains suspended, preventing movement of the profile itself when machining through holes or grooving from the side. Subsequently, the tail frame 610 is moved by the second electric cylinder 69. The second side beam 612, connected to the tail frame 610, pulls the side claws 611, which, in conjunction with the clamping plates 7, further clamp the profile from the front and rear sides for auxiliary fixation. This also provides good support when milling from the front and rear sides of the profile. As the location of the groove to be machined changes, the main claw 63 and side claws 611 can be opened as needed and moved to the corresponding support position required for the subsequent groove, as the two ends of the profile are limited by the end plates 24.

[0030] Among them, a claw pad 8 is fixedly connected to the outer side of the clamping plate 7. The claw pad 8 is made of silicone material. By setting the silicone claw pad 8, it can avoid direct contact with the profile instead of the rigid structure, which would cause scratches. At the same time, it can also play a role in anti-slip. The silicone material also has a certain vibration absorption effect. A clamping drive motor 10 is fixedly connected to the right side of the horizontal clamping seat 3. A bidirectional lead screw 9 is rotatably connected to the inner side of the horizontal clamping seat 3. The outer side of the bidirectional lead screw 9 is threadedly connected to two compensation frames 5 respectively. The bottom of the compensation frame 5 is slidably connected to the horizontal clamping seat 3. The output end of the clamping drive motor 10 is fixedly connected to the right end of the bidirectional lead screw 9. By setting the clamping drive motor 10, the bidirectional lead screw 9 can be driven to rotate in either forward or reverse direction, thereby The two compensation frames 5 connected to it move synchronously closer or further away. A sliding frame 11 is slidably connected to the top of the compensation frame 5. A hollow frame 12 is fixedly connected to the side of the sliding frame 11 near the workpiece fixed end 6. The two sets of hollow frames 12 are fixedly connected to the two main outer frames 61 respectively. By setting the sliding frame 11, it can slide horizontally along the top of the compensation frame 5. The hollow frame 12 connected to the main outer frame 61 is used to drive the horizontal displacement of the workpiece fixed end 6 to control the landing position of the clamping support. A control servo motor 13 is fixedly connected to the opposite side of the two end pieces 24. A control screw 14 is fixedly connected to the output end of the control servo motor 13. The control screw 14 is away from the control servo motor. One end of 13 is rotatably connected to the compensation frame 5. The outer sides of the two control screws 14 are threadedly connected to the two sliding frames 11 respectively. By setting a control servo motor 13 to drive the control screws 14 to rotate, the sliding frames 11 connected to them can be threaded to move horizontally, so as to move the fixed end 6 of the workpiece. The top and bottom of the inner side of the main frame 61 are provided with first floating grooves 15, and the top and bottom of the inner side of the middle frame 66 are provided with second floating grooves 16. The inner side of the first floating groove 15 is slidably connected to the floating frame 62, and the inner side of the second floating groove 16 is slidably connected to the first side beam 67. By setting the first floating groove 15 and the second floating groove 16, the outer edge of the profile is limited. The shape may have concave and convex features due to manufacturing requirements, thus allowing the central frame 66 to have a certain front-to-back horizontal space. When the central frame 66 moves, the floating frame 62, which is slidably connected to it, can also move synchronously along the first floating groove 15. Similarly, the first side beam 67 will also move synchronously with the central frame 66, and will have a limiting effect along the second floating groove 16 during the movement. A longitudinal frame 17 is slidably connected between the two driven slides 68. A longitudinal servo motor 23 is installed on the inner side of the longitudinal frame 17, and a drive screw 18 is rotatably connected to the inner side of the longitudinal frame 17. The output end of the longitudinal servo motor 23 is fixedly connected to the drive screw 18, and the outer side of the drive screw 18 is threadedly connected to the central frame 66.By setting the longitudinal frame 17 to move horizontally together with the driven carriage 68, and the longitudinal servo motor 23 connected to it, can drive the drive screw 18 connected to it, thereby controlling the position adjustment of the connected middle frame 66 forward or backward.

[0031] The working principle of this embodiment is as follows: During use, the thermally broken aluminum profile to be milled is placed between two fixed ends 6 of the workpiece. The clamping drive motor 10 drives two compensating frames 5 to move synchronously towards each other along the horizontal clamping seat 3 via a bidirectional lead screw 9, causing the end plates 24 at both ends to press against the two ends of the profile for initial axial positioning. Then, the servo motor 13 drives the control screw 14 to rotate, causing the sliding frame 11 and the connected hollow frame 12 to move horizontally along the compensating frame 5, adjusting the two fixed ends 6 of the workpiece to the side of the pre-processing position of the slot. The first electric cylinder 65 retracts, pulling the middle frame 66 horizontally along the floating frame 62. Two first side beams 67 pull the upper and lower main jaws 63 to rotate synchronously inward, causing the clamping plates 7 at the front end of the main jaws 63 to clamp the profile from the top and bottom, with the support landing point close to the milling area. To suppress processing vibration, the second electric cylinder 69 extends and pushes the tail frame 610 forward. Through the two second side beams 612, the front and rear side claws 611 are pulled to rotate inward synchronously, so that the clamping pieces 7 at the front end of the side claws 611 clamp the profile from the front and rear sides, forming a four-way clamping auxiliary fixing effect. The longitudinal servo motor 23 can drive the middle frame 66 to make slight adjustments along the driven slide 68 through the drive screw 18. In conjunction with the sliding of the floating frame 62 in the first floating groove 15, it adapts to the concave and convex shape of the outer edge of the profile. When it is necessary to process grooves in other positions, it is only necessary to open the main claw 63 and the side claws 611, move the fixed end 6 of the workpiece along the axis to the side of the new groove, and then re-clamp it. The two ends of the profile are always limited by the end piece 24 and do not need to be re-clamped. Moreover, the milling position is kept in a suspended state, which is convenient for processing through holes and side grooves.

[0032] Example 2 refer to Figure 6 A milling processing device for the groove of thermally broken aluminum doors and windows also includes a head assembly 4, wherein the head assembly 4 includes a back frame 41, a ring frame 42 is fixedly connected to the front side of the back frame 41, a sliding sleeve 43 is slidably connected to the outer side of the ring frame 42, a shield 44 is provided on the outer side of the sliding sleeve 43, and a spindle head assembly 45 is provided on the front side of the shield 44.

[0033] The sliding sleeve 43 is fixedly connected to a connecting plate 19 on its front side, and a protective shell 20 is fixedly connected to the front side of the connecting plate 19. The outer side of the protective shell 20 is fixedly connected to a shield 44. The connecting plate 19 is used to connect the sliding sleeve 43 and the shield 44 in conjunction with the protective shell 20. The shield 44 can also prevent cutting chips from getting stuck between the structures when they fall. The inner side of the ring frame 42 is fixedly connected to an annular frame 21. The inner side of the annular frame 21 is provided with mating teeth. The inner side of the protective shell 20 is fixedly connected to a drive servo motor 22. The output end of the drive servo motor 22 is fixedly connected to a gear. The gear and the mating teeth mesh together. By setting the drive servo motor 22, the entire drive servo motor 22, together with the protective shell 20, the sliding sleeve 43 and the shield 44 connected to it, can rotate circumferentially along the annular frame 21 through the meshing of the gear and the mating teeth.

[0034] The working principle of this embodiment is as follows: The head assembly 4 is mounted on the movable worktable of the three-axis moving platform 2 via the back frame 41. The ring frame 42 is fixed to the front side of the back frame 41. The sliding sleeve 43 is sleeved on the outside of the ring frame 42 and can slide around the circumference of the ring frame 42. The drive servo motor 22 is installed inside the protective shell 20. The gear at its output end meshes with the mating teeth of the annular frame 21 on the inner side of the ring frame 42. When the drive servo motor 22 runs, the gear rolls along the mating teeth on the inner side of the annular frame 21, thereby driving the protective shell 20 and the connecting plate 19. The sliding sleeve 43, the shield 44, and the spindle head assembly 45 rotate circumferentially along the ring frame 42, allowing the spindle head assembly 45 to adjust the milling feed direction from different angles around the profile. Combined with the spatial displacement of the three-axis moving platform 2, multi-faceted slot processing can be achieved without flipping the workpiece, avoiding processing errors caused by frequent changes in the workpiece's stress state. The shield 44 is placed on the outside of the sliding sleeve 43, which can prevent the milling chips generated from falling into the sliding gap between the sliding sleeve 43 and the ring frame 42, ensuring smooth circumferential rotation.

[0035] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling apparatus for slots in thermally broken aluminum doors and windows, comprising a processing table (1), characterized in that: A three-axis moving platform (2) is installed on the top of the processing table (1). A horizontal clamp (3) is fixedly connected to the top of the processing table (1). A machine head assembly (4) is fixedly connected to the front side of the moving worktable of the three-axis moving platform (2). Compensation frames (5) are movably connected to both sides of the top of the horizontal clamp (3). End plates (24) are fixedly connected to the opposite side of the two compensation frames (5). Workpiece fixing ends (6) are provided on the opposite side of the two compensation frames (5). The workpiece fixing end (6) includes a main outer frame (61) and two main jaws (63) rotatably connected to the top and bottom of the main outer frame (61). Two floating frames (62) are movably connected to the top and bottom of the inner side of the main outer frame (61). A pusher (64) is fixedly connected to the side of the two top floating frames (62) away from the main jaws (63). A first electric cylinder (65) is fixedly connected to the inner side of the pusher (64). A middle frame (66) is fixedly connected to the telescopic end of the first electric cylinder (65). A first side beam (67) is movably connected to the top and bottom of the inner side of the middle frame (66). The two first side beams (67) are respectively connected to the two main jaws (63) on the side closest to the two main jaws (63). The outer frame (61) is rotatably connected to the inner sides of the main frame (61), and the driven slide (68) is fixedly connected to both sides. The top and bottom of the middle frame (66) are slidably connected to the inner sides of the top and bottom floating frames (62), respectively. The middle frame (66) is fixedly connected to the side away from the main claw (63) with a second electric cylinder (69). The telescopic end of the second electric cylinder (69) is fixedly connected to the tail frame (610). The front and rear sides of the middle frame (66) are rotatably connected to the side claws (611). The side of the tail frame (610) near the side claws (611) is rotatably connected to two second side beams (612). The two second side beams (612) are rotatably connected to the two side claws (611), respectively. The side claw (611) away from the middle frame (66) and the main claw (63) away from the main outer frame (61) are both rotatably connected with clips (7).

2. The milling device for the groove of thermally broken aluminum doors and windows according to claim 1, characterized in that: The outer side of the clip (7) is fixedly connected to a claw pad (8), which is made of silicone material.

3. The milling device for the groove of thermally broken aluminum doors and windows according to claim 1, characterized in that: A clamping drive motor (10) is fixedly connected to the right side of the horizontal clamp (3). A bidirectional lead screw (9) is rotatably connected to the inner side of the horizontal clamp (3). The outer side of the bidirectional lead screw (9) is threadedly connected to two compensation frames (5). The bottom of the compensation frame (5) is slidably connected to the horizontal clamp (3). The output end of the clamping drive motor (10) is fixedly connected to the right end of the bidirectional lead screw (9).

4. The milling device for the groove of thermally broken aluminum doors and windows according to claim 3, characterized in that: The top of the compensation frame (5) is slidably connected to a sliding frame (11), and a hollow frame (12) is fixedly connected to the side of the sliding frame (11) near the workpiece fixed end (6). The two sets of hollow frames (12) are respectively fixedly connected to the two main outer frames (61).

5. A milling device for grooves in thermally broken aluminum doors and windows according to claim 1, characterized in that: Two end plates (24) are fixedly connected to opposite sides of a control servo motor (13). The output end of the control servo motor (13) is fixedly connected to a control screw (14). The section of the control screw (14) away from the control servo motor (13) is rotatably connected to the compensation frame (5). The outer sides of the two control screws (14) are threadedly connected to two sliding frames (11).

6. The milling device for the groove of thermally broken aluminum doors and windows according to claim 1, characterized in that: The top and bottom of the inner side of the main outer frame (61) are provided with a first floating groove (15), and the top and bottom of the inner side of the middle frame (66) are provided with a second floating groove (16). The inner side of the first floating groove (15) is slidably connected to the floating frame (62), and the inner side of the second floating groove (16) is slidably connected to the first side beam (67).

7. A milling device for grooves in thermally broken aluminum doors and windows according to claim 1, characterized in that: A longitudinal frame (17) is slidably connected between two driven carriages (68). A longitudinal servo motor (23) is installed on the inner side of the longitudinal frame (17). A drive screw (18) is rotatably connected to the inner side of the longitudinal frame (17). The output end of the longitudinal servo motor (23) is fixedly connected to the drive screw (18). The outer side of the drive screw (18) is threadedly connected to the middle frame (66).

8. The milling device for grooves in thermally broken aluminum doors and windows according to claim 1, characterized in that: The head assembly (4) includes a back frame (41), a ring frame (42) is fixedly connected to the front side of the back frame (41), a sliding sleeve (43) is slidably connected to the outer side of the ring frame (42), a shield (44) is provided on the outer side of the sliding sleeve (43), and a spindle head assembly (45) is provided on the front side of the shield (44).

9. A milling device for grooves in thermally broken aluminum doors and windows according to claim 8, characterized in that: The front side of the sliding sleeve (43) is fixedly connected to a connecting plate (19), and the front side of the connecting plate (19) is fixedly connected to a protective shell (20). The outer side of the protective shell (20) is fixedly connected to a shield (44).

10. A milling device for grooves in thermally broken aluminum doors and windows according to claim 9, characterized in that: The inner side of the ring frame (42) is fixedly connected to an annular frame (21), and the inner side of the annular frame (21) is provided with mating teeth. The inner side of the protective shell (20) is fixedly connected to a drive servo motor (22), and the output end of the drive servo motor (22) is fixedly connected to a gear, which meshes with the mating teeth.

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