A sawing equipment based on aluminum alloy door and window processing

Abstract

The application discloses a sawing equipment based on aluminum alloy door and window processing and relates to the technical field of aluminum alloy door and window sawing, which comprises a guide rail, two groups of cutting workbenches movably installed on the guide rail, pneumatic positioning rods installed on the cutting workbenches, movable plugs movably installed on the cutting workbenches, separate plugs movably installed on the movable plugs and second telescopic motors fixedly installed on the cutting workbenches. The movable plug and the separate plug are arranged in the aluminum alloy profile, the expansion rubber ring is controlled to shrink and expand by means of the inside supporting mechanism, the movable plug and the separate plug can move integrally in the inserting stage, are separated and supported on both sides of the cutting in the cutting stage, the problem that the profile lacks support in the traditional sawing process due to the external clamping is solved, and the hollow thin-walled aluminum alloy profile has higher structural rigidity in the sawing process.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy door and window sawing technology, specifically to a sawing device based on aluminum alloy door and window processing. Background Technology

[0002] Aluminum alloy door and window profiles are mostly hollow in cross-section, a design that balances lightweighting and structural strength. However, this structural feature places special demands on the clamping method during sawing. Existing equipment generally uses cylinder clamping to hold and fix the profiles, constraining their position during the cutting process through clamping force. However, due to the thin walls and hollow structure of aluminum alloy profiles, the profile walls are prone to elastic deformation under clamping force, even forming localized depressions on the surface. When the profile is deformed under pressure, its internal stress distribution is uneven. The stress release at the moment of cutting causes slight displacement or rebound of the profile. After this disturbance is transmitted to the sawing area, the relative position of the saw blade and the profile fluctuates, and the dimensional and angular accuracy of the cut end face decreases accordingly, thus affecting the splicing quality of door and window components.

[0003] Furthermore, burrs on the cut edges of aluminum alloy profiles after sawing are also a significant factor affecting processing quality. Aluminum alloys are relatively soft and have a low melting point. During high-speed cutting with a circular saw blade, the heat generated by friction between the blade and the profile causes plastic flow at the cut edge, forming built-up edges and burrs. The presence of burrs affects the tightness of the fit when splicing door and window components, potentially causing gaps when assembling corners, negatively impacting the overall water and air tightness of the window. Currently, most sawing equipment requires a subsequent deburring process to remove burrs after cutting. This process necessitates transferring the profiles to other equipment for secondary processing, increasing processing steps and labor costs. Summary of the Invention

[0004] The purpose of this invention is to provide a sawing device for aluminum alloy door and window processing, so as to solve the problems mentioned in the background art, such as the decrease in cutting accuracy caused by deformation or vibration due to the hollow nature of the material, and the need for additional processing of burrs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sawing device based on aluminum alloy door and window processing, comprising a guide rail, two sets of cutting worktables movably mounted on the guide rail, a pneumatic positioning rod mounted on the cutting worktable, a movable plug movably mounted on the cutting worktable, a separation plug movably mounted on the movable plug, a second telescopic motor fixedly mounted on the cutting worktable, and the movable plug mounted on the output shaft of the second telescopic motor; The internal support mechanism further includes an air passage, a movable air plug, an expansion rubber ring, a fixing plate, and a fixing block. The movable plug and the disconnect plug are provided with air passages. An expansion rubber ring is installed on both the movable plug and the disconnect plug. The air passage is connected to the inner side of the expansion rubber ring. A movable air plug is movably inserted into the air passage in the disconnect plug. A fixing plate is fixedly installed on one side of the movable plug. A fixing block is fixedly installed on one side of the fixing plate. The fixing block is installed on the output shaft of the second telescopic motor. The impurity removal mechanism includes a stamping frame, which is fixedly mounted on the fixed plate. The shape of the stamping frame is adapted to the shape of the movable plug. The installation mechanism includes a positioning block, an installation head, and a support base. The positioning block is fixedly installed on one side of the fixing block. The installation head is fixedly installed on the output shaft of the second telescopic motor. The positioning block is installed inside the installation head. The support base is installed on the cutting worktable.

[0006] Preferably, the internal support mechanism further includes a first electromagnet, a movable air plug, a trapezoidal groove, a trapezoidal block, and a guide cone. The first electromagnet is fixedly installed in the air passage of the movable plug, and the movable air plug is movably installed in the air passage of the separating plug. The first electromagnet can attract the movable air plug. A trapezoidal groove is opened on one side of the separating plug, and a guide cone is fixedly installed on the other side of the separating plug. A trapezoidal block is fixedly installed on one side of the movable plug. The shape of the trapezoidal block matches the shape of the trapezoidal groove, and the trapezoidal block is inserted into the trapezoidal groove.

[0007] Preferably, the inner support mechanism further includes a first venting groove, a support strip, and venting holes. The air passage is provided with an array of first venting grooves. The corners of the movable plug and the disconnect plug are fixedly installed with support strips. The support strips are provided with an array of venting holes. The expansion ring is fixedly installed on the support strip. The air passage is connected to the inner side of the expansion ring through the first venting groove. The shape of the expansion ring is adapted to the shape of the material. The outer side of the expansion ring does not contact the inner side of the material. The outer side of the expansion ring and the outer side of the movable plug and the disconnect plug are flush.

[0008] Preferably, the internal support mechanism further includes a guide rod, a return spring, and a second electromagnet. The guide rod is fixedly installed in the air passage of the separation plug, and the movable air plug is movably sleeved on the guide rod. A return spring is provided in the air passage of the separation plug, with one end of the return spring abutting against the air passage and the other end abutting against the movable air plug. A second electromagnet is provided in the end of the pneumatic positioning rod, and the second electromagnet can attract the movable air plug.

[0009] Preferably, the internal support mechanism further includes a second vent groove, a threaded air port, a flexible air tube, a cylinder, and a first telescopic motor. The fixed block has a second vent groove, which is connected to the air passage on the movable plug. The fixed block has a threaded air port, which is connected to the second vent groove. A flexible air tube is threaded onto the threaded air port. The cutting worktable has a cylinder and a first telescopic motor, the output shaft of which is fixedly connected to the piston inside the cylinder. The flexible air tube is connected to the cylinder.

[0010] Preferably, the impurity removal mechanism further includes insertion holes, a fixed bracket, and discharge rods. The fixed plate has four sets of insertion holes, which are located between the outer side of the movable plug and the inner side of the stamping frame. The fixed bracket is fixedly installed on the cutting worktable, and four sets of discharge rods are fixedly installed on the fixed bracket. The positions of the discharge rods are opposite to the positions of the insertion holes, and the positions of the discharge rods are opposite to the positions of the discharge grooves on the cutting worktable.

[0011] Preferably, the impurity removal mechanism further includes a stamped rigid strip and an impurity discharge groove. The shape of the inner side of the stamping frame is adapted to the shape of the outer side of the raw material. A stamped rigid strip is fixedly installed on one edge of the stamping frame, and an impurity discharge groove is provided on one edge of the movable plug.

[0012] Preferably, the impurity removal mechanism further includes an air chamber, a filter screen, and a solenoid valve. An air chamber is provided inside the stamping frame. A filter screen is fixedly installed on one side of the air chamber. The filter screen and the stamping rigid strip are arranged on the same side. A solenoid valve is fixedly installed on the fixing plate. One end of the solenoid valve is connected to the second vent groove in the fixing block, and the other end of the solenoid valve is connected to the air chamber.

[0013] Preferably, the installation mechanism further includes a fixing sleeve, a fixing hole, a fixing screw, a mounting hole, a mounting screw, and a mounting sleeve. A fixing sleeve is fixedly installed inside the positioning block. A fixing hole is opened on the mounting head, and a fixing screw is inserted into the fixing hole. The fixing screw is threaded into the fixing sleeve. Mounting holes are arrayed on the support base, and mounting screws are inserted into the mounting holes. Mounting sleeves are arrayed and fixedly installed on the cutting worktable, and mounting screws are threaded into the mounting sleeves. The shape of the support base is adapted to the raw material.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention sets a separable movable plug and a separation plug inside the aluminum alloy profile, and uses an internal support mechanism to control the contraction and expansion of the expansion ring, so that the movable plug and the separation plug can maintain overall movement during the insertion stage, and separate and support each other on both sides of the cut during the cutting stage. This changes the problem that the profile lacks internal support due to relying solely on external clamping during the traditional sawing process, and makes the hollow thin-walled aluminum alloy profile have higher structural rigidity during the sawing process, reducing vibration, offset and profile deformation caused by saw blade cutting force, and improving cutting stability and cut quality. 2. This invention combines the resetting action of the inner support structure with the impurity removal mechanism, enabling the movable plug to automatically discharge residual material during the withdrawal process. The movement of the stamping frame, stamping hard strip, and separating plug is used to treat the burrs on the outer and inner sides of the profile cut, respectively. At the same time, the generated burr debris is collected and discharged through the air chamber, filter screen, and solenoid valve. This allows the profile sawing, residual material removal, and cut trimming processes to be completed continuously, reducing subsequent manual cleaning and secondary processing steps and improving the processing efficiency of aluminum alloy door and window profiles. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the cutting workbench provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the detachable plug provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure at the fixing block provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structural separation at the stamping frame provided in an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the structure at the movable plug and fixing block provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structural separation at the support base provided in an embodiment of the present invention; Figure 8 Provided for embodiments of the present invention Figure 5 A magnified view of part A in the diagram; Figure 9 Provided for embodiments of the present invention Figure 7 A magnified view of part B in the diagram.

[0016] In the diagram: 1. Guide rail; 2. Cutting worktable; 3. Pneumatic positioning rod; 4. Movable plug; 5. Separating plug; 6. Internal support mechanism; 601. Air passage; 602. First electromagnet; 603. Movable air plug; 604. Trapezoidal groove; 605. Trapezoidal block; 606. Guide cone; 607. First vent groove; 608. Support bar; 609. Vent hole; 610. Expansion ring; 611. Guide rod; 612. Return spring; 613. Second electromagnet; 614. Fixing plate; 615. Fixing block; 616. Second vent groove; 617. Threaded air port; 618. 619. Flexible air tube; 620. Cylinder; 7. First telescopic motor; 7. Impurity removal mechanism; 701. Stamped frame; 702. Insertion hole; 703. Fixed bracket; 704. Discharge rod; 705. Stamped rigid strip; 706. Impurity discharge groove; 707. Air chamber; 708. Filter screen; 709. Solenoid valve; 8. Installation mechanism; 801. Positioning block; 802. Fixing screw sleeve; 803. Mounting head; 804. Fixing hole; 805. Fixing screw; 806. Support base; 807. Mounting hole; 808. Mounting screw; 809. Mounting screw sleeve; 9. Second telescopic motor. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-9 The present invention provides a technical solution: a sawing device based on aluminum alloy door and window processing, including a guide rail 1, two sets of cutting worktables 2 are movably installed on the guide rail 1, a pneumatic positioning rod 3 is installed on the cutting worktable 2, a movable plug 4 is movably installed on the cutting worktable 2, a separation plug 5 is movably installed on the movable plug 4, a second telescopic motor 9 is fixedly installed on the cutting worktable 2, and the movable plug 4 is installed on the output shaft of the second telescopic motor 9; The inner support mechanism 6 also includes an air passage 601, a movable air plug 603, an expansion rubber ring 610, a fixing plate 614, and a fixing block 615. The movable plug 4 and the disconnect plug 5 are provided with air passages 601. An expansion rubber ring 610 is installed on both the movable plug 4 and the disconnect plug 5. The air passage 601 is connected to the inner side of the expansion rubber ring 610. The movable air plug 603 is movably inserted into the air passage 601 in the disconnect plug 5. A fixing plate 614 is fixedly installed on one side of the movable plug 4. A fixing block 615 is fixedly installed on one side of the fixing plate 614. The fixing block 615 is installed on the output shaft of the second telescopic motor 9. The impurity removal mechanism 7 includes a stamping frame 701, which is fixedly installed on the fixing plate 614. The shape of the stamping frame 701 is adapted to the shape of the movable plug 4. The mounting mechanism 8 includes a positioning block 801, a mounting head 803, and a support base 806. The positioning block 801 is fixedly mounted on one side of the fixing block 615. The mounting head 803 is fixedly mounted on the output shaft of the second telescopic motor 9, and the positioning block 801 is installed inside the mounting head 803. The support base 806 is mounted on the cutting table 2. By setting the movable plug 4 and the separating plug 5, the internal support structure can separate after being inserted into the profile, allowing the support structure to avoid the saw blade cutting area. Simultaneously, it provides support to the inside of the profile from both sides of the cutting position, thus avoiding the problem of localized deformation of the profile easily caused by traditional external clamping methods and improving the stability of the hollow aluminum alloy profile sawing process. The movable plug 4 is moved by the second telescopic motor 9, enabling the insertion, separation, and resetting processes of the movable plug 4 and the separating plug 5 to be completed automatically, improving the automation level of the equipment processing.

[0019] Furthermore, the internal support mechanism 6 also includes a first electromagnet 602, a movable air plug 603, a trapezoidal groove 604, a trapezoidal block 605, and a guide cone 606. The first electromagnet 602 is fixedly installed inside the air passage 601 of the movable plug 4, and the movable air plug 603 is movably installed inside the air passage 601 of the disconnect plug 5. The first electromagnet 602 can attract the movable air plug 603. A trapezoidal groove 604 is provided on one side of the disconnect plug 5, and a guide cone 606 is fixedly installed on the other side of the disconnect plug 5. A trapezoidal groove 604 is fixedly installed on one side of the movable plug 4. Block 605, the shape of which is adapted to the shape of trapezoidal groove 604, is inserted into trapezoidal groove 604. Through the cooperation of first electromagnet 602, movable air plug 603, trapezoidal groove 604, trapezoidal block 605, and guide cone 606, the separating plug 5 can maintain connection with movable plug 4 during the insertion stage and be driven into the profile by movable plug 4. When the cutting position is reached, the first electromagnet 602 can release the separating plug 5 from movable plug 4 and keep it independently inside the profile. The cooperation between trapezoidal block 605 and trapezoidal groove 604 can improve the positional accuracy of movable plug 4 and separating plug 5 when connected, and avoid misalignment during movement. At the same time, guide cone 606 can reduce insertion resistance, allowing separating plug 5 to smoothly enter the profile. Through the above structure, the internal support structure can realize the state transformation of overall movement during insertion and separation support during cutting, so that both sides of the cutting area can obtain internal support, effectively reducing profile vibration and cut deformation during sawing.

[0020] Furthermore, the inner support mechanism 6 also includes a first ventilation groove 607, a support bar 608, and ventilation holes 609. The first ventilation groove 607 is arrayed at each air passage 601. Support bars 608 are fixedly installed at the corners of the movable plug 4 and the separating plug 5. Ventilation holes 609 are arrayed on the support bars 608. An expansion ring 610 is fixedly installed on the support bar 608. The air passage 601 communicates with the inner side of the expansion ring 610 through the first ventilation groove 607. The shape of the expansion ring 610 is adapted to the shape of the material. The outer side of the expansion ring 610 does not contact the inner side of the material. The outer side of the expansion ring 610 and the outer side of the movable plug 4 are flush with the outer side of the separating plug 5. By setting expansion rings 610 adapted to the profile cross-section on the movable plug 4 and the separating plug 5, and using the air passage 601, the first air groove 607, and the air hole 609 to achieve air pressure control, the movable plug 4 and the separating plug 5 can maintain a small external size in the inserted state, and after positioning, they will expand to fit against the inner wall of the profile, thereby achieving internal support for hollow profiles with different cross-sections. The support strip 608 restricts the corner position of the expansion ring 610, controlling the deformation direction of the expansion ring 610 and avoiding overall irregular bulging that would lead to unstable support. At the same time, the expansion ring 610 mainly expands in the direction of contact with the inner wall of the profile, improving the uniformity of the internal support force. This structure can improve support stability while ensuring convenient insertion and reduce the deformation of the profile caused by the saw blade force during cutting.

[0021] Furthermore, the inner support mechanism 6 also includes a guide rod 611, a return spring 612, and a second electromagnet 613. The guide rod 611 is fixedly installed in the air passage 601 of the disconnect plug 5. The movable air plug 603 is movably sleeved on the guide rod 611. The return spring 612 is provided in the air passage 601 of the disconnect plug 5. One end of the return spring 612 abuts against the air passage 601, and the other end abuts against the movable air plug 603. The second electromagnet 613 is provided in the end of the pneumatic positioning rod 3. The second electromagnet 613 can attract the movable air plug 603. Through the cooperation of the guide rod 611, the return spring 612, and the second electromagnet 613, the movable air plug 603 can switch positions according to the connection state of the movable plug 4 and the disconnect plug 5. When the disconnect plug 5 is connected to the movable plug 4, the first electromagnet 602 attracts the movable air plug 603, keeping the expansion ring 610 in a contracted state to prevent obstruction by the inner wall of the profile during insertion. When the disconnect plug 5 separates from the movable plug 4, the return spring 612 pushes the movable air plug 603 back to its original position, causing the expansion ring 610 on the disconnect plug 5 to automatically unfold and provide internal support. At the same time, the second electromagnet 613 locks the position of the movable air plug 603, ensuring that the disconnect plug 5 maintains a stable support state during cutting and preventing a decrease in support force due to changes in air pressure.

[0022] Furthermore, the internal support mechanism 6 also includes a second venting groove 616, a threaded air port 617, a flexible air tube 618, a cylinder 619, and a first telescopic motor 620. The fixed block 615 has a second venting groove 616, which communicates with the air passage 601 on the movable plug 4. A threaded air port 617 is fixedly installed on the fixed block 615, communicating with the second venting groove 616. A flexible air tube 618 is threadedly installed on the threaded air port 617. The cutting worktable 2... A cylinder 619 and a first telescopic motor 620 are fixedly installed. The output shaft of the first telescopic motor 620 is fixedly connected to the piston inside the cylinder 619. A flexible air pipe 618 is connected to the cylinder 619. Through the cooperation of the second air groove 616, the threaded air port 617, the flexible air pipe 618, the cylinder 619, and the first telescopic motor 620, the expansion ring 610 on the movable plug 4 can be actively inflated and deflated, thereby achieving rapid contact and release between the movable plug 4 and the inner wall of the profile. Since the movable plug 4 needs to participate in the synchronous support of both sides of the profile, this pneumatic structure allows the movable plug 4 to change its support state according to the cutting stage, providing stable support during cutting and relieving resistance during withdrawal. At the same time, this air source structure can also provide power for subsequent burr and debris adsorption, realizing the multi-functional use of the same power source and reducing the need for additional drive structures.

[0023] Furthermore, the impurity removal mechanism 7 also includes insertion holes 702, a fixed bracket 703, and discharge rods 704. Four sets of insertion holes 702 are provided on the fixed plate 614, located between the outer side of the movable plug 4 and the inner side of the stamping frame 701. A fixed bracket 703 is fixedly installed on the cutting worktable 2, and four sets of discharge rods 704 are fixedly installed on the fixed bracket 703. The positions of the discharge rods 704 are opposite to the positions of the insertion holes 702 and the positions of the discharge grooves on the cutting worktable 2. By providing the stamping frame 701, insertion holes 702, fixed bracket 703, and discharge rods 704 on the fixed plate 614, the residual material after cutting can be automatically discharged as the movable plug 4 retracts. When the movable plug 4 pulls the residual material out, the discharge rods 704 in the fixed position can pass through the insertion holes 702 and abut against the residual material, causing the residual material to automatically separate from the movable plug 4 and enter the corresponding discharge position. This structure utilizes the reset action of the original internal support mechanism 6 to complete the waste material cleaning, eliminating the need to add an independent material discharge mechanism, reducing the complexity of the equipment, and preventing residual material from affecting the next profile processing.

[0024] Furthermore, the impurity removal mechanism 7 also includes a stamping rigid strip 705 and an impurity discharge groove 706. The shape of the inner side of the stamping frame 701 matches the shape of the outer side of the raw material. A stamping rigid strip 705 is fixedly installed on one edge of the stamping frame 701, and an impurity discharge groove 706 is provided on one edge of the movable plug 4. By setting a stamping rigid strip 705 on the stamping frame 701 that matches the shape of the profile, and setting an impurity discharge groove 706 on the movable plug 4, the burr removal process can be completed simultaneously during the reconnection and withdrawal of the movable plug 4 and the disconnect plug 5. The stamping rigid strip 705 can exert a squeezing effect on the outer edge of the profile cut, removing the outer rolled burrs. When the disconnect plug 5 withdraws, it can process the burrs on the inner side of the profile, thereby achieving simultaneous trimming of both the inner and outer sides. The impurity discharge groove 706 can provide discharge space for burr debris, preventing burrs from accumulating at the connection position of the movable plug 4 and the disconnect plug 5, affecting their reconnection, and improving the continuous processing capacity of the equipment.

[0025] Furthermore, the impurity removal mechanism 7 also includes an air chamber 707, a filter screen 708, and a solenoid valve 709. An air chamber 707 is provided within the stamping frame 701. A filter screen 708 is fixedly installed on one side of the air chamber 707, and the filter screen 708 is located on the same side as the stamping rigid strip 705. A solenoid valve 709 is fixedly installed on the fixing plate 614. One end of the solenoid valve 709 communicates with the second vent groove 616 within the fixing block 615, and the other end of the solenoid valve 709 communicates with the air chamber 707. By providing the air chamber 707, filter screen 708, and solenoid valve 709 within the stamping frame 701, the debris generated during the deburring process can be collected in a timely manner. During the reconnection of the movable plug 4 and the disconnect plug 5, the solenoid valve 709 is controlled to cause the cylinder 619 to generate an adsorption airflow, which draws the burr debris generated by the stamping rigid strip 705 and the disconnect plug 5 onto the filter screen 708. Once the equipment moves to the discharge position, it changes the airflow direction to discharge the debris on the filter screen 708, thus achieving simultaneous burr removal and waste cleaning, and preventing debris residue from affecting the accuracy of subsequent processing.

[0026] Furthermore, the installation mechanism 8 also includes a fixing sleeve 802, a fixing hole 804, a fixing screw 805, a mounting hole 807, a mounting screw 808, and a mounting sleeve 809. The fixing sleeve 802 is fixedly installed in the positioning block 801. The mounting head 803 has a fixing hole 804, and the fixing screw 805 is inserted into the fixing hole 804. The fixing screw 805 is threaded into the fixing sleeve 802. The support base 806 has a row of mounting holes 807, and the mounting screw 808 is inserted into the mounting hole 807. The cutting worktable 2 has a row of fixed mounting sleeves 809, and the mounting screw 808 is threaded into the mounting sleeves 809. The shape of the support base 806 is compatible with the raw materials. By setting a detachable installation mechanism 8, the movable plug 4, the disconnect plug 5, and the support base 806 can be replaced according to aluminum alloy profiles of different specifications and cross-sectional shapes, thereby improving the applicability of the equipment. The cooperation of the positioning block 801, mounting head 803, and fixing screw 805 enables the movable plug 4 to be quickly installed and disassembled, facilitating adjustments to the internal support structure according to processing requirements. The support base 806 achieves position adjustment through mounting holes 807, mounting screws 808, and mounting sleeves 809, allowing it to match the shape of different profiles. This structure improves the equipment's versatility in processing different specifications of door and window profiles, while also facilitating equipment maintenance and component replacement.

[0027] Working Principle: In actual use, the embodiments provided by this invention first select the appropriate movable plug 4, disengaged plug 5, and support base 806 according to the cross-sectional shape of the aluminum alloy profile to be processed, and fix them through the mounting mechanism 8: the support base 806 is screwed into the mounting sleeve 809 fixed on the cutting worktable 2 by the mounting screw 808, and at the same time, the positioning block 801 at the rear end of the movable plug 4 is embedded into the mounting head 803 on the output shaft of the second telescopic motor 9, and then the fixing screw 805 is passed through the fixing hole 804 and locked into the fixing sleeve 802, so that the movable plug 4 is fixedly connected to the output shaft of the second telescopic motor 9, thereby ensuring that the inner support mechanism 6 is aligned with the inner cavity of the profile. Subsequently, the profile is placed on the support base 806, and the pneumatic positioning rod 3 assists in completing the initial positioning.

[0028] At this time, the first telescopic motor 620 drives the piston in the cylinder 619 to move, and through the flexible air pipe 618, the threaded air port 617 and the second air groove 616 in the fixed block 615, a negative pressure is formed in the air passage 601 of the movable plug 4, and the expansion rubber ring 610 on the movable plug 4 remains in a contracted state under the action of negative pressure. At the same time, the second telescopic motor 9 starts, and its output shaft extends forward, pushing the movable plug 4 towards the inner cavity of the profile. Since the first electromagnet 602 is energized at this time, it attracts the movable air plug 603, causing the movable air plug 603 to move towards the first electromagnet 602, that is, away from the first vent groove 607. At the same time, it compresses the return spring 612 and slides along the guide rod 611. This movement increases the effective space of the independent closed air passage 601 inside the separation plug 5, reduces the air pressure inside the air passage 601, and keeps the expansion ring 610 on the separation plug 5 in a contracted state. Therefore, the front end of the movable plug 4 cooperates with the trapezoidal groove 604 of the separation plug 5 through the trapezoidal block 605, pushing the separation plug 5, which is also in a contracted state, to be smoothly inserted into the hollow inner cavity of the profile. The guide cone 606 plays a guiding role in this process.

[0029] When the movable plug 4 and the disconnect plug 5 are fully inserted into the predetermined position, the first electromagnet 602 is de-energized and releases the movable air plug 603. Under the elastic force of the return spring 612, the movable air plug 603 slides along the guide rod 611 toward the direction close to the first vent groove 607. This movement reduces the effective space of the independent closed air passage 601 inside the disconnect plug 5, causing the air pressure inside the air passage 601 to increase. The expansion ring 610 on the disconnect plug 5 expands radially due to the increase in internal air pressure and tightly fits the inner wall of the profile. The second telescopic motor 9 retracts, causing the movable plug 4 to move backward a certain distance, creating a gap between the movable plug 4 and the disconnect plug 5, providing sufficient space for the saw blade to cut. Then, the first telescopic motor 620 reverses its direction, driving the piston in the cylinder 619 to inject air into the air passage 601 of the movable plug 4 through the flexible air pipe 618, the threaded air port 617, and the second air groove 616 in the fixed block 615. The air enters the inner side of the expansion ring 610 through the first air grooves 607 and air holes 609 on the movable plug 4, causing it to expand radially and tightly adhere to the inner wall of the profile. Because the outer surface of the expansion ring 610 is flush with the outer surfaces of the movable plug 4 and the disconnect plug 5, and its corners are restricted by the support strip 608, the expansion only occurs on the support surface opposite to the inner wall of the profile, thus evenly tightening the inner wall of the profile and achieving internal support for the hollow profile.

[0030] After the internal support clamping is completed, the separating plug 5 is energized by the second electromagnet 613 to attract the movable air plug 603, locking the movable air plug 603 in a position close to the first vent 607. This keeps the effective space of the independent closed air passage 601 small and the air pressure high, maintaining the expansion ring 610 in an expanded state, and keeping the separating plug 5 stationary within the profile cavity. The second telescopic motor 9 retracts slightly, causing the movable plug 4 to produce a small displacement. The deformation of the expansion ring 610 stretches the profile, making it easier to separate after cutting. Subsequently, the saw blade on the cutting table 2 cuts the profile at the gap between the movable plug 4 and the separating plug 5. During the cutting process, the movable plug 4 and the separating plug 5 simultaneously provide internal support force to the profile on both sides of the cutting point, ensuring no displacement or rebound at the cut.

[0031] After cutting, the saw blade begins to return to its original position. At the same time, the second telescopic motor 9 continues to drive the movable plug 4 to retract. The first electromagnet 602 remains de-energized. The expansion ring 610 on the disconnect plug 5 remains expanded under the locking of the second electromagnet 613 and the return spring 612, so that the disconnect plug 5 remains in the inner cavity of the cut profile side to continuously support that side of the profile. Before the movable plug 4 retracts, the piston in the cylinder 619 driven by the first telescopic motor 620 creates a negative pressure in the air passage 601 of the movable plug 4, causing the expansion ring 610 on the movable plug 4 to switch to a contracted state so as to detach from the inner wall of the profile. When the movable plug 4 retracts, the cutting residue attached to the outside of the movable plug 4 moves with it. The position of the discharge rod 704 on the fixed bracket 703 fixed on the cutting worktable 2 remains fixed. When the movable plug 4 retracts until the discharge rod 704 passes through the insertion hole 702 on the fixed plate 614, the discharge rod 704 pushes out the residue attached to the movable plug 4. This discharge process is carried out synchronously with the return of the saw blade, realizing the coordinated action of cutting and discharge.

[0032] After the residual material is discharged, the second telescopic motor 9 drives the movable plug 4 to extend forward again to engage the detachable plug 5 that is still inside the profile. As the movable plug 4 moves forward, the stamping frame 701 fixed on the fixing plate 614 moves forward as well. The shape of the inner side of the stamping frame 701 is adapted to the outer wall of the profile, and the stamping hard strip 705 at its edge stamps to remove the burrs from the cut edge of the outer wall of the profile. Just before the movable plug 4 comes into contact with the disconnect plug 5, the first electromagnet 602 is energized to attract the movable air plug 603, causing the movable air plug 603 to move toward the first electromagnet 602, i.e. away from the first vent groove 607. At the same time, the return spring 612 is compressed and slides along the guide rod 611, increasing the effective space of the independent closed air passage 601 inside the disconnect plug 5, thus reducing the air pressure and causing the expansion ring 610 on the disconnect plug 5 to contract, so that the trapezoidal block 605 of the movable plug 4 can be smoothly inserted into the trapezoidal groove 604 of the disconnect plug 5 to complete the engagement. At this time, when the disconnect plug 5 is withdrawn, it will bring out the burrs on the inside of the profile. During the stamping of the outer wall burrs by the stamping rigid strip 705 and the scraping of the inner wall burrs by the separating plug 5, the solenoid valve 709 on the fixed plate 614 opens, and the first telescopic motor 620 drives the piston of the cylinder 619 to move. Through the second venting groove 616 in the fixed block 615, the solenoid valve 709, and the air chamber 707 in the stamping frame 701, an adsorption airflow is formed at the filter screen 708, which sucks the burr debris generated by stamping and scraping into the air chamber 707 and temporarily stores it on the filter screen 708. After the movable plug 4 and the separating plug 5 are engaged, the second telescopic motor 9 drives the movable plug 4 and the separating plug 5 to fully retract to the initial position. At this time, the solenoid valve 709 switches, and the piston of the cylinder 619 moves in the opposite direction to generate a blowing airflow, which blows the burr debris temporarily stored on the filter screen 708 into the discharge groove on the cutting worktable 2, completing the entire impurity removal process. Finally, all mechanisms of the equipment are reset, and the next processing cycle can begin.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sawing device for aluminum alloy door and window processing, comprising a guide rail (1), characterized in that: Two sets of cutting worktables (2) are movably mounted on the guide rail (1). A pneumatic positioning rod (3) is mounted on the cutting worktable (2). A movable plug (4) is movably mounted on the cutting worktable (2). A separation plug (5) is movably mounted on the movable plug (4). A second telescopic motor (9) is fixedly mounted on the cutting worktable (2). The movable plug (4) is mounted on the output shaft of the second telescopic motor (9). The internal support mechanism (6) further includes an air passage (601), a first electromagnet (602), a movable air plug (603), an expansion rubber ring (610), a fixing plate (614), and a fixing block (615). An air passage (601) is provided inside the movable plug (4) and the disconnect plug (5). An expansion rubber ring (610) is installed on both the movable plug (4) and the disconnect plug (5). The air passage (601) communicates with the inner side of the expansion rubber ring (610). A first electromagnet (602) is fixedly installed in the air passage (601) of the head (4), and a movable air plug (603) is movably installed in the air passage (601) of the separation plug (5). The first electromagnet (602) can attract the movable air plug (603). A fixing plate (614) is fixedly installed on one side of the movable plug (4), and a fixing block (615) is fixedly installed on one side of the fixing plate (614). The fixing block (615) is installed on the output shaft of the second telescopic motor (9). The impurity removal mechanism (7) includes a stamping frame (701), and the stamping frame (701) is fixedly installed on the fixing plate (614). The shape of the stamping frame (701) is adapted to the shape of the movable plug (4). The installation mechanism (8) includes a positioning block (801), an installation head (803), and a support base (806). The positioning block (801) is fixedly installed on one side of the fixing block (615). The installation head (803) is fixedly installed on the output shaft of the second telescopic motor (9). The positioning block (801) is installed inside the installation head (803). The support base (806) is installed on the cutting worktable (2).

2. The sawing equipment based on aluminum alloy door and window processing according to claim 1, characterized in that: The inner support mechanism (6) also includes a trapezoidal groove (604), a trapezoidal block (605), and a guide cone (606). A trapezoidal groove (604) is provided on one side of the separation plug (5), and a guide cone (606) is fixedly installed on the other side of the separation plug (5). A trapezoidal block (605) is fixedly installed on one side of the movable plug (4). The shape of the trapezoidal block (605) matches the shape of the trapezoidal groove (604), and the trapezoidal block (605) is inserted into the trapezoidal groove (604).

3. The sawing equipment based on aluminum alloy door and window processing according to claim 1, characterized in that: The inner support mechanism (6) further includes a first ventilation groove (607), a support bar (608), and a ventilation hole (609). The air passage (601) is provided with an array of first ventilation grooves (607). The corners of the movable plug (4) and the separation plug (5) are fixedly installed with support bars (608). The support bars (608) are provided with an array of ventilation holes (609). The expansion ring (610) is fixedly installed on the support bar (608). The air passage (601) is connected to the inner side of the expansion ring (610) through the first ventilation groove (607). The shape of the expansion ring (610) is adapted to the shape of the material. The outer side of the expansion ring (610) does not contact the inner side of the material. The outer side of the expansion ring (610) and the outer side of the movable plug (4) and the separation plug (5) are flush.

4. A sawing device for aluminum alloy door and window processing according to claim 1, characterized in that: The inner support mechanism (6) also includes a guide rod (611), a return spring (612), and a second electromagnet (613). The guide rod (611) is fixedly installed in the air passage (601) of the separation plug (5). The movable air plug (603) is movably sleeved on the guide rod (611). The return spring (612) is provided in the air passage (601) of the separation plug (5). One end of the return spring (612) abuts against the air passage (601) and the other end abuts against the movable air plug (603). The second electromagnet (613) is provided in the end of the pneumatic positioning rod (3). The second electromagnet (613) can attract the movable air plug (603).

5. A sawing device for aluminum alloy door and window processing according to claim 1, characterized in that: The internal support mechanism (6) further includes a second ventilation groove (616), a threaded air port (617), a flexible air tube (618), a cylinder (619), and a first telescopic motor (620). The second ventilation groove (616) is provided on the fixed block (615). The second ventilation groove (616) is connected to the air passage (601) on the movable plug (4). The threaded air port (617) is fixedly installed on the fixed block (615). The threaded air port (617) is connected to the second ventilation groove (616). The flexible air tube (618) is installed on the threaded air port (617) by thread. The cylinder (619) and the first telescopic motor (620) are fixedly installed on the cutting worktable (2). The output shaft of the first telescopic motor (620) is fixedly connected to the piston in the cylinder (619). The flexible air tube (618) is connected to the cylinder (619).

6. A sawing device for aluminum alloy door and window processing according to claim 1, characterized in that: The impurity removal mechanism (7) also includes an insertion hole (702), a fixed bracket (703), and a discharge rod (704). The fixed plate (614) has four sets of insertion holes (702). The insertion holes (702) are located between the outer side of the movable plug (4) and the inner side of the stamping frame (701). The fixed bracket (703) is fixedly installed on the cutting worktable (2). The fixed bracket (703) has four sets of discharge rods (704) fixedly installed on the fixed bracket (703). The position of the discharge rod (704) is opposite to the position of the insertion hole (702). The position of the discharge rod (704) is opposite to the position of the discharge groove on the cutting worktable (2).

7. A sawing device for aluminum alloy door and window processing according to claim 1, characterized in that: The impurity removal mechanism (7) also includes a stamping hard strip (705) and an impurity discharge groove (706). The shape of the inner side of the stamping frame (701) is adapted to the shape of the outer side of the raw material. A stamping hard strip (705) is fixedly installed on one side edge of the stamping frame (701), and an impurity discharge groove (706) is provided on one side edge of the movable plug (4).

8. A sawing device for aluminum alloy door and window processing according to claim 1, characterized in that: The impurity removal mechanism (7) also includes an air chamber (707), a filter screen (708), and a solenoid valve (709). An air chamber (707) is provided in the stamping frame (701). A filter screen (708) is fixedly installed on one side of the air chamber (707). The filter screen (708) and the stamping rigid strip (705) are located on the same side. A solenoid valve (709) is fixedly installed on the fixing plate (614). One end of the solenoid valve (709) is connected to the second ventilation groove (616) in the fixing block (615), and the other end of the solenoid valve (709) is connected to the air chamber (707).

9. A sawing device for aluminum alloy door and window processing according to claim 1, characterized in that: The installation mechanism (8) further includes a fixing sleeve (802), a fixing hole (804), a fixing screw (805), a mounting hole (807), a mounting screw (808), and a mounting sleeve (809). The fixing sleeve (802) is fixedly installed in the positioning block (801). The mounting head (803) has a fixing hole (804). The fixing screw (805) is inserted into the fixing hole (804). The fixing screw (805) is installed in the fixing sleeve (802) by threads. The support base (806) has an array of mounting holes (807). The mounting screw (808) is inserted into the mounting hole (807). The cutting table (2) has an array of fixed mounting sleeves (809). The mounting screw (808) is installed in the mounting sleeve (809) by threads. The shape of the support base (806) is compatible with the raw material.

Images