A milling machine for aluminum door and window ends

Abstract

This application relates to the technical field of end milling machines, and discloses an aluminum door and window end milling machine, which includes a power assembly including a base, support rods, a power output component and a drive source; a milling assembly including a base and a milling head; a protective assembly having two sets respectively installed on opposite sides of the base, each set of protective assemblies including multiple protective covers distributed along the moving direction of the base and sequentially fitted, the protective covers sliding on the support rods, and a ventilation gap between the peripheries of adjacent protective covers; a sealing member disposed on the end of the protective cover used for fitting between two adjacent protective covers, for sealing the ventilation gap between the protective cover and the covered protective cover; a linkage assembly disposed between the base and the sealing member, for driving the sealing member to open and close; and an air supply assembly disposed in the base, for supplying air to the protective assembly in the process of being stored.

Description

Technical Field

[0001] This application relates to the technical field of end milling machines, and in particular to an aluminum door and window end milling machine. Background Technology

[0002] When milling aluminum profiles, aluminum door and window end milling machines generate a large amount of chips and dust. The milling device is typically driven horizontally by a lead screw. If chips enter the mating surface of the lead screw, it will cause feed jamming, reduced accuracy, and component wear, affecting the equipment's lifespan. Therefore, existing technology generally installs protective covers on both sides of the milling head to isolate the chips.

[0003] There are two main types of common protective covers: one is the accordion-style protective cover, whose pleated structure is retractable, but fine debris easily accumulates in the pleats and is difficult to clean. Long-term accumulation will hinder retraction and wear out the cover; the other is the retractable rigid protective cover, which is made of multiple overlapping plates. The gaps between adjacent sections are also prone to embedding debris. As the usage time increases, the debris in the gaps becomes tighter and tighter, which can increase the resistance to retraction, cause abrasive wear, and obstruct the retraction action, thus affecting the movement of the milling head.

[0004] Therefore, there is an urgent need to provide a milling machine for the end faces of aluminum doors and windows that is easy to clean and does not easily accumulate residue. Summary of the Invention

[0005] This application provides a milling machine for the end faces of aluminum doors and windows, which adopts the following technical solution: A milling machine for aluminum door and window end faces includes: a feeding unit and a milling unit. The feeding unit is used to place and position profiles, and the milling unit is used to mill the profiles. The milling unit includes... The power assembly includes a base, support rods, a power output component, and a drive source; the support rods, power output component, and drive source are all mounted on the base, and the power output component is driven by the drive source. A milling assembly includes a base and a milling head; the base reciprocates along a linear direction on a power output component, and the milling head is mounted on the milling base; The protective assembly has two sets installed on opposite sides of the base. Each set of protective assemblies includes multiple protective covers distributed along the moving direction of the base and sequentially nested. The protective covers slide on the support rods, and there are ventilation gaps between the peripheries of adjacent protective covers. The protective covers at both ends of each set of protective assemblies are installed on the base and the pedestal, so that the protective covers together enclose the power output component and the support rods between the base and the pedestal. When the base moves, the protective assemblies are opened or closed. A closure element is installed on the end of a protective cover that is fitted between two adjacent protective covers to close the ventilation gap between the protective cover and the cover being fitted. A linkage component, located between the base and the enclosure, is used to drive the opening and closing of the enclosure; wherein, the enclosure closes during the deployment of the protective assembly; and the enclosure opens during the retraction of the protective assembly, allowing the ventilation gap to connect with the external environment; and An air supply assembly, located in the base, is used to supply air to the protective components during the storage process; wherein, between two adjacent protective covers, the airflow sweeps across the outer surface of the covered protective cover and enters the external environment through the ventilation gap.

[0006] With the above solution, the multi-section protective cover can be unfolded or retracted synchronously with the base. When unfolded, the sealing parts close to block the ventilation gaps and prevent milling debris from entering the power components and support rods. When retracted, the sealing parts open automatically, and the air supply components blow air in a directional manner. The airflow sweeps across the outer surface of the protective cover and is discharged through the ventilation gaps, effectively blowing away accumulated debris in the gaps so that debris does not easily accumulate on the surface of the protective cover and does not easily cause problems such as obstruction of movement and wear.

[0007] Preferably, the closure includes a flexible fabric and an elastic rope. The outer periphery of the flexible fabric is fixed to the inner wall of the protective cover to be fitted, and the elastic rope is disposed on the inner periphery of the flexible fabric and drives the flexible fabric to hug the outer periphery of the protective cover to be fitted.

[0008] The above solution, using flexible fabric and elastic rope as the sealing components, is simple in structure and low in cost. The elastic rope, utilizing its own elastic contraction force, naturally pulls the flexible fabric to tightly hug the outer perimeter of the protective cover, achieving reliable sealing of the ventilation gaps. When cleaning is required, the elastic rope is stretched to open the gaps, and automatically tightens again after restoring its elasticity, ensuring both airtightness and good self-resetting capability.

[0009] Preferably, the linkage components include The main ring is slidably sleeved on the support rod and fixed to the protective cover at the same time; The first guide member is located between the main ring and the support rod to guide the movement of the main ring; The secondary ring is coaxially rotatably connected to the main ring, and simultaneously slidably sleeved on the support rod; The second guide member, located between the secondary ring and the support rod, guides the movement of the secondary ring; and The linkage rope connects the elastic rope and the auxiliary ring; During the deployment of the protective components, the main ring is guided by the first guide member to rotate the protective cover, so that the linkage rope pulls the elastic rope away from the protective cover, exposing the ventilation gap.

[0010] The above scheme utilizes the cooperation of the main ring, secondary ring, and guide component to transform the linear movement of the protective cover into selective rotation. When the protective assembly unfolds, the first guide component drives the main ring to rotate through the guide groove, causing the linkage rope to pull the elastic rope to open the closure; when retracting, the main ring returns to its original position and rotates, closing the closure.

[0011] Preferably, the protective cover is provided with multiple guide seats on the extension path of the linkage rope for the linkage rope to slide through.

[0012] By using the above-mentioned method, multiple guide seats are set along the extension path of the linkage rope, which can effectively constrain and guide the movement direction of the linkage rope.

[0013] Preferably, the outer periphery of the support rod is provided with a set of guide grooves corresponding to the linkage components. The set of guide grooves includes a first guide groove, a first inclined groove, a second guide groove, and a second inclined groove that are connected in sequence. The first guide groove and the second guide groove extend along the axial direction parallel to the support rod, and the first inclined groove and the second inclined groove extend obliquely along the circumferential direction of the support rod. A first stepped surface is formed at the junction of the first inclined groove and the second guide groove to prevent the first guide member from entering the first inclined groove from the second guide groove, and a second stepped surface is formed at the junction of the second inclined groove and the first guide groove to prevent the first guide member from entering the second inclined groove from the first guide groove. When the protective component is in the retracted state, both the first guide and the second guide are located in the first guide groove. When the protective component moves from the retracted state to the unfolded state, the first guide passes through the first inclined groove and enters the second guide groove to drive the main ring to rotate, while the second guide remains in the first guide groove. When the protective component moves from the unfolded state to the retracted state, the first guide passes through the second guide groove and the second inclined groove in sequence and then enters the first guide groove to drive the main ring to reset and rotate, while the second guide remains in the first guide groove.

[0014] Preferably, both the first guide member and the second guide member are driven by their corresponding elastic members, so that they tend to move toward the support rod.

[0015] With the above scheme, the first guide member and the second guide member, driven by their respective elastic members, always tend to approach the support rod, so that their ends can be tightly abutted against the bottom surface of the guide groove.

[0016] Preferably, between two adjacent protective covers, the protective cover for fitting has a first limiting protrusion, and the protective cover being fitted has a second limiting protrusion and a third limiting protrusion, with the first limiting protrusion located between the second limiting protrusion and the third limiting protrusion. When the protective component is folded up, the first limiting protrusion abuts against the second limiting protrusion; when the protective component is unfolded, the first limiting protrusion abuts against the third limiting protrusion.

[0017] The above solution involves setting first, second, and third limiting protrusions on adjacent protective covers. The movement range of the first limiting protrusion between the second and third limiting protrusions limits the maximum stowage and maximum unfolding positions of the protective components.

[0018] Preferably, the air supply assembly includes an air source, a three-way valve body, and an air duct; the air source is installed in the base, the air outlet of the air source is connected to the inlet of the three-way valve body, the three-way valve body also has two branch outlets, the two branch outlets are respectively connected to two air ducts, and the two air ducts are respectively facing two sets of protective components.

[0019] The above solution utilizes a single air source, a three-way valve, and two air intake hoods to selectively deliver air to the protective components being stored, based on the direction of the base's movement. This time-sharing, directional air delivery method avoids wasting airflow, concentrating the airflow onto the protective cover surface precisely when debris removal is most needed, resulting in high purging efficiency.

[0020] In summary, this application includes at least one of the following beneficial effects: By controlling the opening and closing of the enclosure through the linkage components, a closed protection is formed when unfolded, and the ventilation gap is opened when stored, and the air supply actively blows away the debris, making it difficult for debris to accumulate on the horizontal protective structure, reducing the problems of movement obstruction and accelerated wear, and improving the cleanliness and operational reliability of the equipment. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the protective component and the base in an embodiment of this application; Figure 3 yes Figure 2 Side view; Figure 4 This is a schematic diagram of the structure of a set of protective components in an embodiment of this application; Figure 5 This is a schematic diagram of the limiting protrusion structure between two adjacent protective covers in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a protective cover in one embodiment of this application; Figure 7 This is a schematic diagram of the guide groove assembly in an embodiment of this application (the arrow in the figure indicates the unfolding direction of the protective component); Figure 8 This is a schematic diagram of the air supply component in an embodiment of this application; Figure 9 yes Figure 8 Side view; Explanation of reference numerals in the attached drawings: 1. Placement platform; 2. Pressure plate; 3. Power assembly; 31. Base; 32. Support rod; 33. Power output component; 34. Drive source; 4. Milling assembly; 41. Base; 42. Milling head; 5. Protective assembly; 51. Protective cover; 6. Ventilation gap; 7. Sealing component; 71. Flexible cloth; 72. Elastic rope; 8. Linkage assembly; 81. Main ring; 82. First guide component; 83. Secondary ring; 84. ... 85. Guide component; 9. Linkage rope; 10. Air supply assembly; 11. Air source; 12. Three-way valve body; 13. Air duct cover; 14. Guide seat; 15. Guide groove assembly; 16. First guide groove; 17. First inclined groove; 18. Second guide groove; 19. Second inclined groove; 10. First stepped surface; 10. Second stepped surface; 10. Elastic component; 11. First limiting protrusion; 12. Second limiting protrusion; 13. Third limiting protrusion; 14. Air outlet. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 This application will be described in further detail.

[0023] This application discloses an aluminum door and window end face milling machine. (Refer to...) Figure 1 The aluminum door and window end milling machine includes a feeding unit and a milling unit. The feeding unit is used to position the aluminum profile to prevent it from shifting during milling. The milling unit is used to mill the end face of the positioned aluminum profile to complete the end face processing required for aluminum door and window assembly. The two work together. The milling machine also has an outer housing.

[0024] The feeding unit includes a placement table 1 and a pressure plate 2. The placement table 1 is used to place aluminum profiles. The pressure plate 2 is driven by a cylinder to press the aluminum profiles onto the placement table 1 to position the aluminum profiles. This is a common existing technology and will not be described in detail here.

[0025] The milling unit includes a power unit 3, a milling component 4, a protective component 5, a sealing component 7, a linkage component 8, and an air supply component 9. The power unit 3 provides power support for the entire milling unit, driving the milling component 4 to move; the milling component 4 performs milling operations on the end face of the aluminum profile; the protective component 5, together with the sealing component 7, encloses and protects the power transmission components to prevent debris from entering; the linkage component 8, together with the sealing component 7 and the air supply component 9, automatically cleans up debris when the protective component 5 is stored.

[0026] Reference Figure 2 , Figure 3 and Figure 4For the power assembly 3, the power assembly 3 includes a base 31, a support rod 32, a power output component 33, and a drive source 34. There are two bases 31, which are fixedly distributed along the horizontal movement direction of the milling assembly 4. The support rod 32 is a round rod shaped and fixed between the two bases 31. The power output component 33 is a lead screw rotatably connected between the two bases 31. There can be two parallel lead screws, or one lead screw and a guide rod parallel to the lead screw. In this embodiment, two parallel lead screws are selected. The drive source 34 is a servo motor mounted on one of the bases 31, and the output end of the drive source 34 is fixedly engaged with the lead screw to drive the power output component 33 to rotate. The axes of the support rod 32 and the power output component 33 are both parallel to the horizontal movement direction of the milling assembly 4.

[0027] Reference Figure 1 and Figure 2 For the milling assembly 4, the milling assembly 4 includes a base 41 and a milling head 42. The base 41 is hollow inside and encloses the power output component 33 and the support rod 32. The interior of the base 41 is fixedly connected to the lead screw nut of the power output component 33 through an extended seat. When the drive component drives the lead screw to rotate, the lead screw nut will drive the base 41 to move linearly along the axis of the lead screw. The milling head 42 is mounted on the base 41 and moves with the base 41, thereby realizing the milling operation on the end face of the aluminum profile. The milling head 42 can be fixed at a fixed height or can move vertically under the drive of power. When the milling head 42 can move vertically, it is enclosed by a protective structure such as a bellows cover or a telescopic cover. However, because it moves vertically, chips are not easy to accumulate on this protective structure. The cooperation between the milling head 42 and the base 41 is a common existing technology and will not be described in detail here.

[0028] To further improve the stability of the base 41 movement, in some embodiments, a guide slider can be provided at the bottom of the base 41, and a guide rail adapted to the guide slider can be provided inside the outer casing, with the guide slider and the guide rail sliding together.

[0029] Reference Figure 2 , Figure 3 and Figure 4 For the protective component 5, there are two sets of protective components 5. The two sets of protective components 5 are respectively installed on opposite sides of the base 41 along its own moving direction. Both sides of the base 41 have openings that communicate with the protective components 5. The protective components 5 are used to cover the power output component 33 and the support rod 32 between the side of the base 41 and the base 31.

[0030] Each set of protective components 5 includes multiple protective covers 51 that are sequentially fitted along the moving direction of the base 41. The protective covers 51 are made of rigid material. All protective covers 51 are slidably fitted onto the support rod 32, which passes through all the protective covers 51 and provides guidance for the telescopic sliding of the protective covers 51.

[0031] Specifically, the protective covers 51 are all cylindrical. In the same group of protective components 5, the protective cover 51 near the base 41 is rotatably connected to the base 41 and moves synchronously with the base 41. The protective cover 51 away from the base 41 is fixed on the base 31. The middle protective cover 51 is fitted in sequence through a sleeve structure and works in conjunction with the protective covers 51 at both ends to form a closed protective space, enclosing the power output component 33 and the support rod 32 inside, thus achieving protection.

[0032] When the base 41 moves in a straight line along the power output component 33, it will drive the protective cover 51 connected to it to move synchronously, thereby causing the entire protective component 5 to unfold or retract. When the base 41 moves away from the base 31, the protective component 5 gradually unfolds. When the base 41 moves closer to the base 31, the protective component 5 gradually retracts.

[0033] Reference Figure 5 The protective cover 51 is provided with a limiting protrusion structure between two adjacent protective covers 51. A first limiting protrusion 15 protrudes from the inner wall of the end of the protective cover 51 furthest from the base 41, a second limiting protrusion 16 protrudes from the outer wall of the end of the protective cover 51 furthest from the base 41, and a third limiting protrusion 17 protrudes from the outer wall of the end of the protective cover 51 furthest from the base 41. The first limiting protrusion 15 is located between the second limiting protrusion 16 and the third limiting protrusion 17. When the protective component 5 is fully retracted, the first limiting protrusion 15 abuts against the second limiting protrusion 16, limiting the retraction stroke of the protective cover 51; when the protective component 5 is fully extended, the first limiting protrusion 15 abuts against the third limiting protrusion 17, limiting the extension stroke of the protective cover 51.

[0034] Reference Figure 2 and Figure 5 More specifically, in the same group of protective components 5, the dimensions of each protective cover 51 decrease sequentially in the direction away from the base 41. That is, in two adjacent protective covers 51, the protective cover 51 used for fitting is closer to the base 41 than the protective cover 51 being fitted. Each protective cover 51 is slidably fitted onto the support rod 32 coaxially through one end near the base 41, and this end is hollowed out to allow airflow. Between two adjacent protective covers 51, the inner diameter of the protective cover 51 used for fitting is larger than the outer diameter of the protective cover 51 being fitted, thus leaving a ventilation gap 6 between the two protective covers 51.

[0035] Reference Figure 2 , Figure 5 and Figure 6 For the sealing element 7, the sealing element 7 is disposed at the end of the protective cover 51 used for sleeve on two adjacent protective covers 51 away from the base 41, and includes a flexible cloth 71 and an elastic rope 72. The outer periphery of the flexible cloth 71 is fixedly connected to the inner wall of the protective cover 51 used for sleeve. The elastic rope 72 is disposed on the inner periphery of the flexible cloth 71 and is in a loop shape with the ends connected. The elastic rope 72 has good elastic contraction performance. In its natural state, it can drive the flexible cloth 71 to hug the outer periphery of the protective cover 51 being sleeved, so that the flexible cloth 71 is in contact with the outer surface of the protective cover 51 being sleeved, thereby realizing the sealing of the ventilation gap 6.

[0036] Reference Figure 4 , Figure 6 and Figure 7 The linkage component 8 is disposed between the base 31 and the enclosure 7, with each linkage component 8 corresponding to one enclosure 7. Each linkage component 8 includes a main ring 81, a first guide 82, a secondary ring 83, a second guide 84, and a linkage rope 85.

[0037] The main ring 81 is coaxially slidably sleeved on the support rod 32 and fixedly connected to the protective cover 51 near the base 41. When the protective cover 51 moves with the base 41, it will drive the main ring 81 to move synchronously along the support rod 32. The first guide member 82 is disposed between the main ring 81 and the support rod 32, which can guide the movement of the main ring 81 so as to drive the main ring 81 to rotate during the process of moving along the axial direction of the support rod 32.

[0038] The secondary ring 83 is coaxially slidably sleeved on the support rod 32, and simultaneously coaxially rotatably connected to the main ring 81. During anti-slip movement along the axial direction of the support rod 32, the secondary ring 83 moves together. A second guide member 84 is disposed between the secondary ring 83 and the support rod 32 to guide the movement of the secondary ring 83.

[0039] One end of the linkage rope 85 is fixedly connected to the elastic rope 72, and the other end is fixedly connected to the secondary ring 83 for transmitting power. Multiple linkage ropes 85 are spaced apart along the circumference of the secondary ring 83. When the main ring 81 rotates relative to the secondary ring 83, the secondary ring 83 pulls the elastic rope 72 via the linkage rope 85, causing the elastic rope 72 to move closer to the base 41 and unfold, thus allowing the elastic rope 72 to leave the protective cover 51. This opens the enclosure 7, exposing the ventilation gap 6.

[0040] Furthermore, the protective cover 51 is equipped with multiple guide seats 10 along the extension path of the linkage rope 85. The guide seats 10 can be guide wheels for the linkage rope 85 to wind around, or seats with through holes for the linkage rope 85 to slide through. The guide seats 10 guide and limit the linkage rope 85, allowing it to move along a preset path, thus improving the smoothness and accuracy of power transmission. The specific number of guide seats 10 is reasonably set according to the length of the protective cover 51 and the extension path of the linkage rope 85.

[0041] Reference Figure 4 , Figure 6 and Figure 7 Specifically, to achieve the cooperation between the support rod 32 and the linkage assembly 8, the outer periphery of the support rod 32 is provided with guide groove groups 11 corresponding to the linkage assembly 8. The guide groove group 11 includes a first guide groove 111, a first inclined groove 112, a second guide groove 113, and a second inclined groove 114 that are connected in sequence. The first guide groove 111 extends along an axial direction parallel to the support rod 32. The first inclined groove 112 is connected to the end of the first guide groove 111 near the base 41, and extends circumferentially along the support rod 32 in a direction away from the first guide groove 111, and closer to the base 41. The second guide groove 113 is connected to the end of the first inclined groove 112 away from the first guide groove 111, and extends axially parallel to the support rod 32 in a direction away from the base 41. The second inclined groove 114 is connected to the end of the second guide groove 113 away from the first inclined groove 112. The second inclined groove 114 extends circumferentially along the support rod 32 away from the second guide groove 113 and away from the base 41. At the same time, the end of the second inclined groove 114 away from the second guide groove 113 is connected to the first guide groove 111.

[0042] More specifically, the walls of the first guide groove 111 and the first inclined groove 112 transition smoothly, while the opening depth of the first inclined groove 112 near the second guide groove 113 is shallower than the opening depth of the second guide groove 113 near the first inclined groove 112, forming a first stepped surface 12 at the junction of the first inclined groove 112 and the second guide groove 113. The walls of the second guide groove 113 and the second inclined groove 114 transition smoothly, while the opening depth of the second inclined groove 114 near the first guide groove 111 is shallower than the opening depth of the first guide groove 111 near the second inclined groove 114, forming a second stepped surface 13 at the junction of the second guide groove 113 and the first inclined groove 112. It should be noted that the guide groove groups 11 corresponding to each movable protective cover 51 are staggered circumferentially along the support rod 32 and do not interfere with each other.

[0043] The first guide member 82 is shaped like a convex column and slides radially within the main ring 81. The second guide member 84 is also shaped like a convex column and slides radially within the secondary ring 83. Both the first guide member 82 and the second guide member 84 slide within the guide groove. Both are driven by their corresponding elastic members 14, which are respectively installed in the main ring 81 and the secondary ring 83. The elastic member 14 in the main ring 81 is connected to the first guide member 82, and the elastic member 14 in the secondary ring 83 is connected to the second guide member 84. The elastic force of the elastic member 14 pushes the first guide member 82 and the second guide member 84 towards the support rod 32, abutting against the inner wall of the guide groove of the support rod 32. This accommodates changes in the depth of the guide groove and prevents the first guide member 82 and the second guide member 84 from disengaging from the guide groove. The elastic member 14 can be a spring or a sheet spring; in this embodiment, a spring is used.

[0044] Reference Figure 8 and Figure 9 The air supply assembly 9 is housed in the base 41 and includes an air source 91, a three-way valve body 92, and an air duct 93. The air source 91, installed inside the base 41, uses a centrifugal fan. The air inlet of the air source 91 extends to the external environment (not shown in the figure) through a flexible hose with a filter. The air outlet of the air source 91 connects to the inlet of the three-way valve body 92. The three-way valve body 92 also has two branch outlets, which are connected to two air ducts 93 via flexible ducts. The two air ducts 93 face the two sets of protective components 5, allowing the airflow generated by the air source 91 to be redirected through the three-way valve body 92. The air duct 93 has holes to accommodate the support rod 32 and the power output component 33, and its interior has an air duct connected to the three-way valve body 92. Multiple air outlets 18 connected to the air duct are located on the side of the air duct facing the corresponding protective component 5 to diffuse the airflow.

[0045] Specifically, during the process of the two sets of protective components 5 changing states, the airflow is directed towards the protective component 5 that is being stored, so as to blow the debris on the surface of the covered windproof cover outward during the storage process of the protective component 5.

[0046] Reference Figure 2 , Figure 6 and Figure 7 The description is based on the state in which one of the protective components 5 and the air supply component 9 are in cooperation. When the protective component 5 is in the fully retracted state, the first guide 82 and the second guide 84 of the same protective cover 51 are both located in the first guide groove 111, and the first guide 82 is closer to the base 41 than the second guide 84. At this time, the elastic rope 72 is in a naturally contracted state, which drives the flexible cloth 71 to hug the outer periphery of the covered protective cover 51. The sealing component 7 is in a closed state, and the ventilation gap 6 is not connected to the external environment.

[0047] As the protective assembly 5 moves from its retracted state to its unfolded state, the air supply assembly 9 supplies air to another set of protective assemblies 5. The base 41 moves away from the base 31, causing the main ring 81 and the secondary ring 83 to move away from the base 31 along the support rod 32. The sealing member 7 remains closed as the first guide member 82 moves in the first guide groove 111, preventing debris from entering the ventilation gap 6. When the protective assembly 5 is nearly fully unfolded, the first guide member 82 moves with the main ring 81 to the first inclined groove 112, while the second guide member 84 remains in the first guide groove 111. Since the first inclined groove 112 extends circumferentially along the support rod 32, and the first guide member 82 is driven by the elastic member 14 to abut against the guide groove, under the guidance of the first inclined groove 112, the first guide member 82 will cause the main ring 81 and the corresponding protective cover 51 to rotate around the axis of the support rod 32. When the main ring 81 rotates relative to the secondary ring 83, the linkage rope 85 twists, pulling the elastic rope 72 and stretching it. This stretches the elastic rope 72, causing the flexible cloth 71 to detach from the outer periphery of the protective cover 51, opening the closure 7. At this time, the ventilation gap 6 connects with the external environment, allowing airflow to blow outwards during the subsequent retraction of the protective assembly 5. The rotation of the protective cover 51 by the main ring 81 also disturbs the surface of the protective cover 51, facilitating the falling of debris. When the protective assembly 5 is fully deployed, the first guide member 82 passes through the first stepped surface 12 and enters the second guide groove 113, while the second guide member 84 remains in the first guide groove 111. At this time, the first stepped surface 12 restricts the first guide member 82 from returning to the first inclined groove 112.

[0048] As the protective assembly 5 moves from the unfolded state to the retracted state, the air supply assembly 9 supplies air to this protective assembly 5. The base 41 moves towards the base 31, causing the main ring 81 and the secondary ring 83 to move along the support rod 32 towards the base 31. The closure 7 remains open as the first guide member 82 moves in the second guide groove 113, allowing the airflow to blow debris off the surface of the protective cover 51. When the protective assembly 5 is nearly fully retracted, the first guide member 82 moves with the main ring 81 to the second inclined groove 114, while the second guide member 84 remains in the first guide groove 111. Under the inclined guidance of the second inclined groove 114, the first guide member 82 causes the main ring 81 to reset and rotate, allowing the elastic rope 72 to reset under its own elastic contraction force. This causes the flexible cloth 71 to re-enclose the outer periphery of the covered protective cover 51, closing the closure 7. At this time, the ventilation gap 6 closes. When the protective component 5 is fully retracted, the first guide 82 passes through the second stepped surface 13 and enters the first guide groove 111, while the second guide 84 remains in the first guide groove 111. At this time, the second stepped surface 13 restricts the first guide 82 from returning to the second inclined groove 114.

[0049] The implementation principle of the aluminum door and window end milling machine in this application embodiment is as follows: When the protective component 5 is unfolded, the sealing member 7 closes the ventilation gap 6 to prevent debris from entering. When the protective component 5 is retracted, the elastic rope 72 is stretched and unfolded, causing the sealing member 7 to open the ventilation gap 6. At the same time, the air supply component 9 supplies air to the protective component 5. The airflow sweeps across the outer surface of the protective cover 51 and blows the debris on the surface of the protective cover 51 outward through the ventilation gap 6.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A milling machine for the end faces of aluminum doors and windows, characterized in that, include: The feeding unit is used to place and position the profile, and the milling unit is used to mill the profile. The milling unit includes The power assembly (3) includes a base (31), a support rod (32), a power output component (33), and a drive source (34); the support rod (32), the power output component (33), and the drive source (34) are all mounted on the base (31), and the power output component (33) is driven by the drive source (34); The milling assembly (4) includes a base (41) and a milling head (42); the base (41) reciprocates along a straight line on the power output component (33), and the milling head (42) is mounted on the milling base (41); The protective assembly (5) has two sets installed on opposite sides of the base (41). Each set of protective assemblies (5) includes multiple protective covers (51) distributed along the moving direction of the base (41) and sequentially fitted. The protective covers (51) slide on the support rod (32), and there is a ventilation gap (6) between the peripheries of adjacent protective covers (51). The protective covers (51) located at both ends of each set of protective assemblies (5) are installed on the base (41) and the base (31) respectively, so that each protective cover (51) together encloses the power output component (33) and the support rod (32) between the base (41) and the base (31), and the protective assembly (5) is opened or closed when the base (41) moves. A closure (7) is provided on the end of the protective cover (51) used for sleeve in two adjacent protective covers (51) to close the ventilation gap (6) between the protective cover (51) and the protective cover (51) being sleeved. A linkage component (8) is disposed between the base (31) and the closure component (7) to drive the closure component (7) to open and close; wherein, the closure component (7) closes during the unfolding of the protective component (5); and the closure component (7) opens during the retraction of the protective component (5), allowing the ventilation gap (6) to communicate with the external environment; and An air supply assembly (9) is provided in the base (41) for supplying air to the protective assembly (5) during the storage process; wherein, between two adjacent protective covers (51), the airflow passes over the outer surface of the covered protective cover (51) and enters the external environment through the ventilation gap (6).

2. The aluminum door and window end milling machine according to claim 1, characterized in that: The closure (7) includes a flexible cloth (71) and an elastic rope (72). The outer periphery of the flexible cloth (71) is fixed to the inner wall of the protective cover (51) for sleeve. The elastic rope (72) is set on the inner periphery of the flexible cloth (71) and drives the flexible cloth (71) to hug the outer periphery of the protective cover (51) being sleeved.

3. The aluminum door and window end milling machine according to claim 2, characterized in that: Linkage component (8) includes The main ring (81) is slidably sleeved on the support rod (32) and fixed to the protective cover (51); The first guide member (82) is disposed between the main ring (81) and the support rod (32) to guide the movement of the main ring (81); The secondary ring (83) is coaxially rotatably connected to the main ring (81) and simultaneously slidably sleeved on the support rod (32); The second guide member (84) is disposed between the sub-ring (83) and the support rod (32) to guide the movement of the sub-ring (83); as well as Linkage rope (85) is connected between elastic rope (72) and secondary ring (83); During the deployment of the protective component (5), the main ring (81) is guided by the first guide (82) to rotate the protective cover (51), so that the linkage rope (85) pulls the elastic rope (72) away from the protective cover (51) and exposes the ventilation gap (6).

4. The aluminum door and window end milling machine according to claim 3, characterized in that: The protective cover (51) is provided with multiple guide seats (10) on the extension path of the linkage rope (85) for the linkage rope (85) to slide through.

5. The aluminum door and window end milling machine according to claim 3, characterized in that: The outer periphery of the support rod (32) is provided with guide groove groups (11) corresponding one-to-one with the linkage assembly (8). The guide groove group (11) includes a first guide groove (111), a first inclined groove (112), a second guide groove (113), and a second inclined groove (114) that are connected in sequence. The first guide groove (111) and the second guide groove (113) extend along the axial direction parallel to the support rod (32), and the first inclined groove (112) and the second inclined groove (114) extend obliquely along the circumferential direction of the support rod (32). At the junction of the first inclined groove (112) and the second guide groove (113), a first stepped surface (12) is formed to prevent the first guide member (82) from entering the first inclined groove (112) from the second guide groove (113). At the junction of the second inclined groove (114) and the first guide groove (111), a second stepped surface (13) is formed to prevent the first guide member (82) from entering the second inclined groove (114) from the first guide groove (111). When the protective component (5) is in the retracted state, the first guide (82) and the second guide (84) are both located in the first guide groove (111). When the protective component (5) moves from the retracted state to the unfolded state, the first guide (82) passes through the first inclined groove (112) and enters the second guide groove (113) to drive the main ring (81) to rotate, and the second guide (84) is still located in the first guide groove (111). When the protective component (5) moves from the unfolded state to the retracted state, the first guide (82) passes through the second guide groove (113) and the second inclined groove (114) in sequence and enters the first guide groove (111) to drive the main ring (81) to reset and rotate, and the second guide (84) is still located in the first guide groove (111).

6. The aluminum door and window end milling machine according to claim 5, characterized in that: Both the first guide member (82) and the second guide member (84) are driven by their respective elastic members (14) to have a tendency to move toward the support member (32).

7. The aluminum door and window end milling machine according to claim 1, characterized in that: Between two adjacent protective covers (51), the protective cover (51) used for fitting has a first limiting protrusion (15), and the protective cover (51) to be fitted has a second limiting protrusion (16) and a third limiting protrusion (17). The first limiting protrusion (15) is located between the second limiting protrusion (16) and the third limiting protrusion (17). When the protective component (5) is stored, the first limiting protrusion (15) abuts against the second limiting protrusion (16); when the protective component (5) is unfolded, the first limiting protrusion (15) abuts against the third limiting protrusion (17).

8. The aluminum door and window end face milling machine according to claim 1, characterized in that: The air supply assembly (9) includes an air source (91), a three-way valve body (92), and an air duct (93); the air source (91) is installed in the base (41), and the air outlet of the air source (91) is connected to the inlet of the three-way valve body (92). The three-way valve body (92) also has two branch outlets, which are connected to two air ducts (93) respectively, and the two air ducts (93) face two sets of protective assemblies (5) respectively.

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