A door and window corner cutting device

Abstract

This utility model discloses a door and window corner cutting device, including a support plate, a limiting groove, a drive motor, a bidirectional screw, a moving block, a lower module, a first auxiliary rod, a top plate, a hydraulic cylinder, and an upper module. The upper module and the lower module each have a slot on their opposite sides. A first connecting block is engaged within the upper module. A support rod is fixedly connected to one side of the first connecting block. A connecting plate is fixedly connected to the end of the support rod away from the upper module. A hydraulic push rod is fixedly connected to the connecting plate. A slider is fixedly connected to the output end of the hydraulic push rod, and the slider contacts a sliding groove. This utility model uses the slot on the opposite side of the upper and lower modules, along with through holes and a locking rod, for limiting. Limiting rings are then connected to both ends of the locking rod to limit the first and second connecting blocks. When replacement is needed, the limiting rings and locking rod can be disassembled to quickly replace the triangular punch and triangular cutting groove, improving the efficiency of stamping specific angles and enhancing stamping adaptability.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy door and window processing technology, specifically to a door and window corner cutting device. Background Technology

[0002] Corner cutting is a process in door and window manufacturing. It involves using mechanical equipment to precisely cut triangular notches in the profiles to form specific angles, and then bending the profiles into specific shapes. This allows for seamless splicing between profiles, thereby improving the airtightness, watertightness, and aesthetics of doors and windows. This is commonly seen in aluminum alloy doors and windows.

[0003] According to the Chinese patent publication CN222856870U, "A Door and Window Corner Cutting Device", the main description is that by rotating the handwheel, the worm gear drives the worm wheel to rotate, and the worm wheel drives the clamping component at the bottom of the rotating seat to rotate through the rotating shaft, thereby adjusting the cutting angle of the workpiece to be processed. The motor drives the mounting seat and the rotating seat to move through the lead screw and slider to perform cutting. The clamping plate and clamping block clamp the workpiece to prevent the workpiece from shifting during movement and rotation, which would cause cutting deviation, improve processing accuracy, and has strong practicality.

[0004] As described in the aforementioned patent, the cutting angle of the workpiece is adjusted by the clamping component, and the mounting base and rotating base are rotated by the lead screw and slider to perform cutting. Then, the clamping plate and clamping block clamp the workpiece. Although this can effectively prevent the workpiece from shifting during movement and rotation, the cutting of the window frame at an angle and the cutting of multiple pipes at a certain angle using the aforementioned patent require fixing the pipes, installing new pipes after cutting, performing the above operations again, and finally assembling and welding. This increases the cutting time and reduces the cutting efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, this utility model provides a door and window corner cutting device to improve the corner cutting efficiency of square tubes used for door and window corner cutting and reduce the corner cutting time.

[0006] The technical solution adopted by this utility model to solve the technical problem is: a door and window corner cutting device, including a support plate, a limiting groove, a drive motor, a bidirectional screw, a moving block, a lower module, a first auxiliary rod, a top plate, a hydraulic cylinder, and an upper module. The upper module and the lower module each have a slot on opposite sides. A first connecting block is snapped into the upper module. A support rod is fixedly connected to one side of the first connecting block. A connecting plate is fixedly connected to the end of the support rod away from the upper module. A hydraulic push rod is fixedly connected to the connecting plate. A slider is fixedly connected to the output end of the hydraulic push rod. The slider contacts... The slide has a groove located at the bottom of the first connecting block. A triangular punch is fixedly connected to the bottom of the slider. A second connecting block is snapped onto the lower module. A square tube placement groove is opened at the upper end of the second connecting block. A triangular cut groove is opened on one side of the second connecting block. A distance measuring plate is fixedly connected to the upper end of both top plates. A distance sensor is fixedly connected to one of the distance measuring plates. Both the upper and lower modules have through holes with locking rods inserted into them. Limiting rings are threaded to both ends of the locking rods, and the locking rods are movably inserted into the first connecting block and the second connecting block, respectively.

[0007] As a preferred technical solution of this utility model, a trapezoidal strip is fixedly connected to the upper end of the support plate. The trapezoidal strip is located on both sides of the limiting groove. The trapezoidal strip is movably inserted into the lower module. By setting the trapezoidal strip, the stability of the movement of the two moving blocks and the lower module is further increased.

[0008] As a preferred technical solution of this utility model, the bottom side of the support plate is provided with a receiving groove, which is located on both sides of the moving block. An electric telescopic rod is fixedly connected to the bottom end of the moving block at the receiving groove. A push plate is fixedly connected to the output end of the electric telescopic rod. The push plate corresponds to the bottom side of the support plate. A rubber pad is fixedly connected to the upper end of the push plate. By setting the electric telescopic rod and the push plate, after the positions of the two lower modules are adjusted, the electric telescopic rod can extend to drive the push plate and the rubber pad to contact the bottom end surface of the support plate, thereby increasing friction and reducing the problem of poor cutting accuracy caused by mechanical vibration.

[0009] As a preferred technical solution of this utility model, a second auxiliary rod is fixedly connected to the bottom end of the push plate, and the second auxiliary rod is movably inserted into the moving block. By setting the second auxiliary rod, the stability of the push plate movement can be increased.

[0010] As a preferred technical solution of this utility model, the lower module is fixedly connected to fixed plates on both sides away from the trapezoidal strip. A spring telescopic rod is fixedly connected to the upper end of the fixed plate, and a baffle is fixedly connected to the upper end of the spring telescopic rod. The baffle corresponds to the triangular cutting groove. By setting the spring telescopic rod and the baffle, the cutting fragments can be blocked on both sides of the triangular cutting groove, thereby achieving the effect of preventing the cutting fragments from being ejected.

[0011] This utility model has the following advantages:

[0012] (1) By setting two sets of adjustable spacing first connecting blocks and triangular punches in conjunction with second connecting blocks, square tube limiting grooves and triangular cutting grooves, it is possible to punch twice under the sequential action of hydraulic cylinders and hydraulic push rods, thereby facilitating the bending of a square tube twice at a certain cutting angle, shortening the loading and unloading time required for punching, and improving processing efficiency.

[0013] (2) By opening and closing the slot on the opposite side of the upper and lower modules, and using the through hole and the locking rod for limiting, and then connecting the limiting rings at both ends of the locking rod to provide limiting for the first connecting block and the second connecting block, the limiting rings and the locking rod can be disassembled when replacement is needed to quickly replace the triangular punch and the triangular slot, improve the efficiency of stamping at a specific angle, and improve the stamping adaptability.

[0014] (3) By installing fixing plates, spring telescopic rods and baffles on both sides of the lower module, the two sides of the triangular groove are blocked, thereby blocking the stamping debris and improving stamping safety. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a door and window corner cutting device according to a preferred embodiment of the present invention;

[0016] Figure 2 This is a side sectional view of a preferred embodiment of the door and window corner cutting device of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the lower module of a door and window corner cutting device according to a preferred embodiment of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Support plate; 2. Limiting groove; 3. Drive motor; 4. Bidirectional screw; 5. Moving block; 6. Lower module; 7. First auxiliary rod; 8. Top plate; 9. Hydraulic cylinder; 10. Upper module; 11. Slot; 12. First connecting block; 13. Support rod; 14. Connecting plate; 15. Hydraulic push rod; 16. Slider; 17. Triangular punch; 18. Second connecting block; 19. Square tube placement slot; 20. Triangular cut groove; 21. Distance measuring plate; 22. Distance sensor; 23. Locking rod; 24. Limiting ring; 25. Trapezoidal strip; 26. Receiving groove; 27. Electric telescopic rod; 28. Push plate; 29. ​​Gasket; 30. Second auxiliary rod; 31. Fixing plate; 32. Spring telescopic rod; 33. Baffle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to the following: Figure 1-3The illustrated door and window corner cutting device includes a support plate 1, a limiting groove 2, a drive motor 3, a bidirectional screw 4, a moving block 5, a lower module 6, a first auxiliary rod 7, a top plate 8, a hydraulic cylinder 9, and an upper module 10. The support plate 1, limiting groove 2, drive motor 3, bidirectional screw 4, moving block 5, lower module 6, first auxiliary rod 7, top plate 8, hydraulic cylinder 9, and upper module 10 together constitute a stamping mechanism. The drive motor 3 can drive the bidirectional screw 4 to rotate, enabling the two lower modules 6 to move relative to each other. The extension of the hydraulic cylinder 9 causes the upper module 10 to move downwards. At this time, the triangular punch 17 approaches and stamps the square tube, and the two triangular cutting grooves are monitored by the distance measuring plate 21 and the distance sensor 22. The lowest point of module 20 is monitored. Slots 11 are provided on opposite sides of both the upper module 10 and the lower module 6. The slots 11 on the upper module 10 connect it to the first connecting block 12, while the slots 11 on the lower module 6 connect it to the second connecting block 18. The first connecting block 12 and the second connecting block 18 are connected via a locking rod 23, providing a limit on the triangular punch 17 and the triangular groove 20. Removing the limiting ring 24 allows for quick replacement of the triangular punch 17 and the triangular groove 20, enabling adjustment of the square tube groove angle by replacing them with suitable angles. The upper module 10 contains the first connecting block 12. A support rod 13 is fixedly connected to one side of the first connecting block 12. A connecting plate 14 is fixedly connected to the end of the support rod 13 away from the upper module 10. A hydraulic push rod 15 is fixedly connected to the connecting plate 14. A slider 16 is fixedly connected to the output end of the hydraulic push rod 15. The slider 16 contacts a groove located at the bottom of the first connecting block 12. A triangular punch 17 (the shape of the triangular punch 17 is a right-angled isosceles triangle) is fixedly connected to the bottom of the slider 16. A second connecting block 18 is snapped onto the lower module 6. A square tube placement groove 19 is opened at the upper end of the second connecting block 18. The square tube placement groove 19 is used to place the square tube to be cut. The position of the cutting groove on the square tube is provided by the distance sensor 22. The system monitors and controls the start of the drive motor 3, causing the bidirectional screw 4 to rotate. A triangular groove 20 is provided on one side of the second connecting block 18 (the shape of the triangular groove 20 is a right-angled isosceles triangle and corresponds to the triangular punch 17). The distance between the lowest points of the triangular groove 20 is consistent with the distance between the two measuring plates 21. The upper ends of the two top plates 8 are fixedly connected to the measuring plates 21. A distance sensor 22 is fixedly connected to one of the measuring plates 21. The upper module 10 and the lower module 6 are both provided with through holes and a locking rod 23 is inserted into the through holes. The two ends of the locking rod 23 are threaded with limit rings 24, and the locking rod 23 is movably inserted into the first connecting block 12 and the second connecting block 18 respectively.

[0021] The upper end of the support plate 1 is fixedly connected to a trapezoidal strip 25, which is located on both sides of the limiting groove 2. The trapezoidal strip 25 is movably inserted into the lower module 6. By setting the trapezoidal strip 25, the stability of the movement of the lower module 6 can be further increased.

[0022] The support plate 1 has a receiving groove 26 on its bottom side, which is located on both sides of the moving block 5. The moving block 5 is fixedly connected to the bottom end of the receiving groove 26 by an electric telescopic rod 27. The output end of the electric telescopic rod 27 is fixedly connected to a push plate 28, which corresponds to the bottom side of the support plate 1. A rubber pad 29 is fixedly connected to the upper end of the push plate 28. The distance sensor 22 monitors the distance at the lowest point of the triangular groove 20. After moving to a suitable position, the electric telescopic rod 27 is activated to extend and drive the push plate 28 and the rubber pad 29 to move up to contact the bottom end of the support plate 1, increasing the friction of the contact surface, thereby stabilizing the operation of the two stamping mechanisms.

[0023] The bottom end of the push plate 28 is fixedly connected to a second auxiliary rod 30, which is movably inserted into the moving block 5. By setting the second auxiliary rod 30, the push plate 28 can move stably, thereby improving the stability of the two stamping mechanisms during operation.

[0024] In this module, the lower module 6 is fixedly connected to two sides away from the trapezoidal strip 25 with fixed plates 31. The upper end of the fixed plate 31 is fixedly connected to a spring telescopic rod 32, and the upper end of the spring telescopic rod 32 is fixedly connected to a baffle 33. The baffle 33 corresponds to the triangular groove 20. By setting the spring telescopic rod 32 to correspond to the two ends of the triangular groove 20, it can provide a blockage when the hydraulic push rod 15 drives the triangular punch 17 to perform secondary stamping, thereby reducing the phenomenon of stamping debris splashing.

[0025] Working principle: The first connecting block 12 and the second connecting block 18 are replaced according to the required cutting angle, and the clamping rod 23 and the limiting ring 24 are used for limiting. Then, the drive motor 3 is started according to the required length of the two grooves on the square tube, which makes the bidirectional screw 4 rotate. Then, the two lower modules 6 move relative to each other or move away. The distance sensor 22, together with the distance measuring plate 21, provides the measurement of the distance between the two triangular grooves 20. Then, the electric telescopic rod 27 extends, which moves the push plate 28 and the rubber pad 29 to the bottom of the contact support plate 1, and the square tube is then... The tube is placed into the square tube placement slot 19, then the hydraulic cylinder 9 extends, the upper module 10 moves down, and the triangular punch 17 moves synchronously to press the square tube. The triangular punch 17 is fully inserted into the square tube. The hydraulic push rod 15 extends and retracts, so that the triangular punch 17 presses the square tube placement slot 19 and the triangular cut groove 20, which can complete the stamping of the side of the square tube. Furthermore, under the action of the spring telescopic rod 32, the baffle 33 blocks both ends of the triangular cut groove 20, reducing the splashing of stamping debris and improving stamping safety.

[0026] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0027] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A door and window corner cutting device, comprising a support plate (1), a limiting groove (2), a drive motor (3), a bidirectional screw (4), a moving block (5), a lower module (6), a first auxiliary rod (7), a top plate (8), a hydraulic cylinder (9), and an upper module (10), characterized in that, The upper module (10) and the lower module (6) are provided with slots (11) on opposite sides. A first connecting block (12) is snapped into the upper module (10). A support rod (13) is fixedly connected to one side of the first connecting block (12). A connecting plate (14) is fixedly connected to the end of the support rod (13) away from the upper module (10). A hydraulic push rod (15) is fixedly connected to the connecting plate (14). A slider (16) is fixedly connected to the output end of the hydraulic push rod (15). The slider (16) contacts a groove located at the bottom end of the first connecting block (12). A triangular punch (17) is fixedly connected to the bottom end of the slider (16). The lower module (6) is fitted with a second connecting block (18). The upper end of the second connecting block (18) is provided with a square tube placement groove (19). The side of the second connecting block (18) is provided with a triangular cut groove (20). The upper ends of the two top plates (8) are fixedly connected with a distance measuring plate (21). One of the distance measuring plates (21) is fixedly connected with a distance sensor (22). The upper module (10) and the lower module (6) are both provided with through holes and a locking rod (23) is inserted into the through holes. Both ends of the locking rod (23) are threaded with limit rings (24). The locking rod (23) is movably inserted into the first connecting block (12) and the second connecting block (18) respectively.

2. A device for cutting corners of doors and windows according to claim 1, characterized in that The upper end of the support plate (1) is fixedly connected to a trapezoidal strip (25), which is located on both sides of the limiting groove (2). The trapezoidal strip (25) is movably inserted into the lower module (6).

3. A device for cutting corners of doors and windows as claimed in claim 2, characterized in that The support plate (1) has a receiving groove (26) on its bottom side. The receiving groove (26) is located on both sides of the moving block (5). The moving block (5) is fixedly connected to the bottom end of the receiving groove (26) with an electric telescopic rod (27). The output end of the electric telescopic rod (27) is fixedly connected to a push plate (28). The push plate (28) corresponds to the bottom side of the support plate (1). The upper end of the push plate (28) is fixedly connected to a rubber pad (29).

4. A device for cutting corners of doors and windows according to claim 3, characterized in that The bottom end of the push plate (28) is fixedly connected to a second auxiliary rod (30), and the second auxiliary rod (30) is movably inserted into the moving block (5).

5. A device for cutting corners of doors and windows as claimed in claim 2 wherein, The lower module (6) is fixedly connected to two sides away from the trapezoidal strip (25) by fixed plates (31). A spring telescopic rod (32) is fixedly connected to the upper end of the fixed plate (31). A baffle (33) is fixedly connected to the upper end of the spring telescopic rod (32). The baffle (33) corresponds to the triangular groove (20).

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