A high-precision aluminum profile cutting and positioning device

Abstract

This invention discloses a high-precision aluminum profile cutting and positioning device, relating to the field of aluminum profile technology. It includes a cutting machine tool, a worktable fixedly mounted on the cutting machine tool, a linear guide rail mounted on the worktable, a placement plate slidably mounted on the linear guide rail for placing aluminum profiles, and a connecting frame fixedly connected to the cutting machine tool. It also includes a clamping and positioning structure mounted on the worktable for adapting to the clamping and positioning of aluminum profiles of different shapes, a main control oil tank fixed to the top of the connecting frame, and a second hydraulic rod rotatably mounted at the bottom of the connecting frame and connected to the main control oil tank. This invention solves the limitations of existing aluminum profile cutting and positioning devices when handling aluminum profiles with special geometric shapes (such as triangles, rhombuses, polygons, etc.), as well as the problems of saw blade wear due to excessive chip accumulation and the possibility of chips melting and adhering to the cut surface at high cutting temperatures, forming burrs.

Description

Technical Field

[0001] This invention relates to the field of aluminum profile technology, specifically to a high-precision aluminum profile cutting and positioning device. Background Technology

[0002] High-precision aluminum profile cutting and positioning devices are key equipment used to ensure accurate cutting dimensions and smooth cuts in aluminum profiles. They are widely used in industries such as construction, automotive, aerospace, and electronics.

[0003] For example, a high-precision aluminum profile cutting and positioning device, disclosed in CN114799335A, can adjust the posture of the positioning mechanism according to the shape of the aluminum profile and fix the aluminum profile. It moves the clamping plate corresponding to the shape of the aluminum profile to both sides of the aluminum profile and adjusts the airflow channel. The air path on both sides of the aluminum profile is symmetrical, and the force on each piston head is balanced, which improves the cutting accuracy. The cutting and positioning device has good adaptability to the shape and size of the aluminum profile. However, the existing aluminum profile cutting and positioning devices still have certain limitations when processing aluminum materials with special geometric shapes (such as triangles, rhombuses, polygons, etc.).

[0004] First, since traditional clamping mechanisms are mainly designed for regular rectangular or circular cross-sections, when facing aluminum materials with sharp edges or asymmetrical cross-sections, local stress concentration is likely to occur at the contact surface between the clamping plate and the profile, resulting in uneven distribution of clamping force. For example, the vertex area of ​​a triangular aluminum material may slip due to the small contact area, and the alternating force on the edges and corners of a polygonal aluminum material may cause micro-displacement, ultimately affecting the straightness of the cutting path.

[0005] Secondly, in terms of chip handling during the cutting process, traditional manual cutting requires frequent pauses to raise the saw blade and clean the chips from the cut. However, if automated equipment continues to cut, the high-speed rotating saw blade can easily squeeze aluminum chips into the narrow slit of the cut, increasing frictional resistance and causing wear on the saw blade teeth. At the same time, aluminum chips may melt and adhere to the cut surface at the high temperature of cutting, forming burrs and making the cross-section rough, which affects subsequent assembly or surface treatment processes.

[0006] To address the aforementioned issues, there is an urgent need for innovative design based on the existing aluminum profile cutting and positioning device. Summary of the Invention

[0007] This invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the purpose of this invention is to provide a high-precision aluminum profile cutting and positioning device to solve the limitations of existing aluminum profile cutting and positioning devices in handling aluminum materials with special geometric shapes (such as triangles, rhombuses, polygons, etc.), as well as the problems of saw blade wear due to excessive chip accumulation and chips melting and adhering to the cut surface at high cutting temperatures, forming burrs.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-precision aluminum profile cutting and positioning device, comprising a cutting machine tool, a worktable fixedly mounted on the cutting machine tool, a linear guide rail mounted on the worktable, a placement plate slidably mounted on the linear guide rail for placing aluminum profiles, and a connecting frame fixedly connected to the cutting machine tool; further comprising a clamping and positioning structure mounted on the worktable for adapting clamping and positioning of aluminum profiles of different shapes, a main control oil tank fixedly mounted on the top of the connecting frame, a second hydraulic rod rotatably mounted on the bottom of the connecting frame and connected to the main control oil tank, a cutting structure rotatably connected to the end of the second hydraulic rod, a swing chip removal structure mounted on the bottom of the connecting frame for assisting in limiting the lifting and lowering movement of the cutting structure, and a compensation structure mounted on the bottom of the connecting frame for compensating for the hydraulic oil in the second hydraulic rod; the outer wall of the second hydraulic rod is fixedly connected to an oil supply pipe, and the other end of the oil supply pipe is connected to the main control oil tank.

[0009] Preferably, the clamping and positioning structure includes a base fixed on the worktable, a support frame fixedly connected to the base, and a rotating disk rotatably mounted on the support frame. The rotating disk is provided with a sensing end for sensing aluminum material. The rotating disk has a movable groove. The rotating disk has first rotating shafts rotatably mounted at equal angles. One end of each first rotating shaft located in the movable groove is fixedly connected to a drive sleeve. Each drive sleeve is fixedly connected to a first hydraulic rod. One end of each first hydraulic rod is provided with a second rotating shaft. One end of each second rotating shaft is fixedly connected to the support frame.

[0010] Preferably, a clamping head is slidably provided at the end of the first hydraulic rod, and the surface of the clamping head is specifically multiple friction contact surfaces. A balance oil pipe is fixedly connected to one side of the first hydraulic rod, and each balance oil pipe is disposed in the support frame and connected to each other. A balance oil tank is fixedly connected to the base, and a receiving oil pipe is fixedly connected to one side of the balance oil tank. One end of the receiving oil pipe is disposed in the support frame and connected to the balance oil pipe. A balance lifting rod for balancing hydraulic oil is slidably provided on the top of the balance oil tank.

[0011] Preferably, a fixing block is fixedly connected to the side wall of the support frame, a threaded rod is rotatably arranged inside the fixing block, a drive motor is arranged on one side of the fixing block, and the end of the drive motor is connected to the threaded rod. A slider is threadedly connected to the threaded rod. A drive plate for driving the rotation of the rotating disk is fixedly connected to the outer wall of the rotating disk. A drive groove is opened on the drive plate. A drive rod is fixedly connected to one side of the slider, and the end of the drive rod is arranged in the drive groove.

[0012] Preferably, the cutting structure includes a housing rotatably connected to the end of the second hydraulic rod via a connector, a connecting plate disposed at the bottom of the inner wall of the housing, a servo motor placed on top of the connecting plate, and a pressure plate abutting the top of the servo motor. A saw blade is fixedly connected to the output end of the servo motor. A symmetrically distributed sliding rod is fixedly connected to the top of the pressure plate. The top of the sliding rod extends through and is exposed on the top of the housing. Two first springs are disposed between the housing and the pressure plate, and the two first springs are respectively sleeved on the two sliding rods.

[0013] Preferably, a limiting rod is fixedly connected to one end of the connecting plate, a horizontal plate is rotatably connected to one end of the limiting rod, a limiting plate is fixedly sleeved on the limiting rod, the extension surface of the limiting plate is positioned directly above the horizontal plate, and a third spring is provided on one side between the horizontal plate and the extension surface of the limiting plate.

[0014] Preferably, the oscillating chip removal structure includes a fixed plate fixedly connected to the bottom of the connecting frame. The fixed plate has a curved groove, and the limiting rod is disposed in the curved groove. The limiting plate at its end and the horizontal plate are both located on one side of the curved groove. The outer wall of the fixed plate is fixedly connected with a barrier plate arranged in a vertical array, and one end of the barrier plate is in contact with one end of the horizontal plate.

[0015] Preferably, the compensation structure includes an extension block fixedly connected to the bottom of the connecting frame, a compensation oil chamber fixedly connected to the bottom of the extension block, the compensation oil chamber being connected to a second hydraulic rod, a pressing member being slidably disposed at the oil inlet of the compensation oil chamber, and a second spring being disposed between the pressing member and the compensation oil chamber.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. After the sensing end detects aluminum material, it triggers the start of the drive motor. The drive motor drives the threaded rod to rotate, causing the slider to move towards one end of the threaded rod. The drive rod on the slider, embedded in the drive groove of the drive plate, slides towards one end of the drive groove, causing the drive plate to rotate the rotating disk in the direction of the slider's movement. Simultaneously, the sensing end also controls the balance pressure rod on the balance oil tank to move upwards, providing flow space for the subsequent hydraulic oil to flow under pressure. When the clamping head at the end of the first hydraulic rod contacts the outer wall of the aluminum material, the clamping head, under the obstruction and pressure of the aluminum surface, causes the piston rod of the first hydraulic rod to contract, thus removing excess material inside the first hydraulic rod. Hydraulic oil is delivered through the balance oil pipe to the flow space created by the upward lifting of the balance pressure rod, thereby achieving adaptive initial clamping of different protrusions on the aluminum surface. After the adaptive initial clamping is completed, the balance pressure rod is automatically controlled to move downward, pushing the hydraulic oil inside the balance oil tank through the receiving oil pipe and different balance oil pipes, and finally delivering it to each first hydraulic rod, replenishing the hydraulic oil inside each first hydraulic rod. This allows the clamping head that has not yet contacted the aluminum material to extend to the piston rod of the first hydraulic rod, achieving full contact clamping of the outer wall of the aluminum material. This facilitates the stable clamping of aluminum materials of different shapes by the multiple clamping heads that rotate with the rotating disk.

[0018] 2. After the aluminum material is stably clamped, the second hydraulic rod extends downwards due to the oil injection from the main control oil tank. Then, the servo motor inside the housing is activated, causing the servo motor to drive the saw blade to rotate. As the second hydraulic rod and the housing move downwards, they oscillate slightly according to the curvature of the curved groove via the limit rod, causing the saw blade to oscillate synchronously. This increases the contact area between the saw blade and the aluminum material. When the horizontal plate contacts the barrier plate, the horizontal plate temporarily stops the descent of the second hydraulic rod and causes the horizontal plate to drive the connecting plate upwards to lift the servo motor. Subsequently, the servo motor pushes the slide rod upwards through the pressure plate, causing the first spring on the slide rod to contract. This temporarily separates the saw blade from the aluminum material and creates a certain space between the saw blade and the cut. The chips located in the cut are discharged from the cut with the airflow in the direction of the saw blade's rotation, preventing the saw blade from wearing down due to excessive chip accumulation and preventing chips from melting and adhering to the cut surface at the high cutting temperature, forming burrs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the aluminum profile cutting and positioning device of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall structure of the aluminum profile cutting and positioning device of the present invention in the cutting state.

[0021] Figure 3 This is a schematic diagram of the clamping and positioning structure of the present invention.

[0022] Figure 4This is a schematic diagram of the oscillating chip removal structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the cutting structure of the present invention.

[0024] Figure 6 This is a plan view of the cutting structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the compensation structure of the present invention.

[0026] Figure 8 for Figure 6 Enlarged view of the structure at point A.

[0027] In the diagram: 1. Cutting machine tool; 2. Worktable; 3. Linear guide rail; 301. Placement plate; 4. Support frame; 5. Balance oil tank; 501. Receiving oil pipe; 6. Main control oil tank; 7. Saw blade; 8. Fixing plate; 801. Barrier plate; 802. Curved groove; 9. Base; 10. Rotary disk; 1001. Drive plate; 1002. First rotating shaft; 11. Fixing block; 12. Slider; 13. Threaded rod; 14. First hydraulic rod; 1401. 15. Two rotating shafts; 16. Clamping head; 17. Balance oil pipe; 18. Sensing end; 19. Connecting frame; 20. Second hydraulic rod; 21. Oil supply pipe; 22. Housing; 2101. Connecting part; 23. Servo motor; 24. Limiting rod; 25. Connecting plate; 26. Limiting plate; 27. Horizontal plate; 28. Pressure plate; 29. ​​Slide rod; 20. First spring; 21. Compensating oil chamber; 32. Extrusion part; 33. Second spring; 34. Third spring. Detailed Implementation

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

[0029] Please see Figures 1 to 8This invention provides a technical solution: a high-precision aluminum profile cutting and positioning device, comprising a cutting machine tool 1, a worktable 2 fixedly mounted on the cutting machine tool 1, a linear guide rail 3 mounted on the worktable 2, a placement plate 301 slidably mounted on the linear guide rail 3 for placing aluminum profiles, and a connecting frame 18 fixedly connected to the cutting machine tool 1. It also includes a clamping and positioning structure mounted on the worktable 2 for adaptive clamping and positioning of aluminum profiles of different shapes, a main control oil tank 6 fixed to the top of the connecting frame 18, and a second hydraulic system rotatably mounted at the bottom of the connecting frame 18 and connected to the main control oil tank 6. The system includes a rod 19, a cutting structure rotatably connected to the end of the second hydraulic rod 19, a swing chip removal structure located at the bottom of the connecting frame 18 to assist in limiting the lifting and lowering movement of the cutting structure, and a compensation structure located at the bottom of the connecting frame 18 to compensate for the hydraulic oil inside the second hydraulic rod 19. The outer wall of the second hydraulic rod 19 is fixedly connected to an oil supply pipe 20, and the other end of the oil supply pipe 20 is connected to the main control oil tank 6. The rotation of the second hydraulic rod 19 and the bottom of the connecting frame 18 is set to a swing setting, and the rotational connection between the second hydraulic rod 19 and the cutting structure is a swing connection. The oil supply pipe 20 is made of flexible hose material.

[0030] In this embodiment, the aluminum material to be cut is placed on the placement plate 301. The aluminum material then moves along the linear guide rail 3 via the placement plate 301, entering the clamping and positioning structure. The clamping and positioning structure detects the entry of the aluminum material and adaptively clamps and positions it according to its shape. After the aluminum material is securely clamped, the main control oil tank 6 injects oil into the second hydraulic rod 19 through the oil pipe 20, causing the second hydraulic rod 19 to extend downwards. The cutting structure at its end gradually contacts the aluminum material and begins cutting. Simultaneously, the oscillating chip removal structure, used to limit the lifting and lowering of the cutting structure, slightly oscillates the cutting structure while it cuts the aluminum material, and then pauses and lifts the cutting structure. Slight oscillation can increase the cutting area of ​​aluminum. When the cutting structure is in a stationary lifting state, the chips generated in the cutting kerf can be driven out of the kerf by the airflow in the rotation direction of the saw blade 7, which makes subsequent cutting of aluminum more convenient, improves the smoothness of the cut, and increases the service life of the saw blade 7. The compensation structure allows the cutting structure to receive excess hydraulic oil in the second hydraulic rod 19 when the cutting structure is stationary, preventing the second hydraulic rod 19 from getting stuck. As more hydraulic oil accumulates in the compensation structure, the resistance in the compensation structure is greater than the stationary resistance of the oscillating chip removal structure, allowing the cutting structure to avoid the current stationary obstruction and thus enter a deeper cutting depth to carry out the cutting work on the aluminum.

[0031] The clamping and positioning structure includes a base 9 fixed on the worktable 2, a support frame 4 fixedly connected to the base 9, and a rotating disk 10 rotatably mounted on the support frame 4. The rotating disk 10 is provided with a sensing end 17 for sensing aluminum material. The rotating disk 10 has a movable groove. First rotating shafts 1002 are rotatably mounted on the rotating disk 10 at equal angles. A drive sleeve is fixedly connected to one end of each first rotating shaft 1002 located in the movable groove. A first hydraulic rod 14 is fixedly connected to each drive sleeve. A second rotating shaft 1401 is provided at one end of each first hydraulic rod 14. One end of each second rotating shaft 1401 is fixedly connected to the support frame 4.

[0032] A clamping head 15 is slidably provided at the end of the first hydraulic rod 14. The surface of the clamping head 15 is specifically multiple friction contact surfaces. A balance oil pipe 16 is fixedly connected to one side of the first hydraulic rod 14. Each balance oil pipe 16 is set in the support frame 4 and is connected to each other. A balance oil tank 5 is fixedly connected to the base 9. A receiving oil pipe 501 is fixedly connected to one side of the balance oil tank 5. One end of the receiving oil pipe 501 is set in the support frame 4 and is connected to the balance oil pipe 16. A balance lifting rod for balancing hydraulic oil is slidably provided on the top of the balance oil tank 5.

[0033] A fixing block 11 is fixedly connected to the side wall of the support frame 4. A threaded rod 13 is rotatably arranged inside the fixing block 11. A drive motor is arranged on one side of the fixing block 11, and the end of the drive motor is connected to the threaded rod 13. A slider 12 is threadedly connected to the threaded rod 13. A drive plate 1001 for driving the rotation of the rotating disk 10 is fixedly connected to the outer wall of the rotating disk 10. A drive groove is opened on the drive plate 1001. A drive rod is fixedly connected to one side of the slider 12, and the end of the drive rod is arranged in the drive groove.

[0034] In this embodiment, the base 9 is located on the workbench 2, and the top of the base 9 is fixedly connected to the support frame 4. A rotating disk 10 is rotatably installed inside the support frame 4. A sensing end 17 for sensing aluminum material is installed inside the rotating disk 10. Therefore, when aluminum material enters the rotating disk 10, the sensing end 17 starts the drive motor. After the drive motor starts, the threaded rod 13 is driven to rotate. After the threaded rod 13 rotates, the slider 12 slides towards one end of the threaded rod 13. The slider 12 moves in the drive groove through the drive rod, causing the drive plate 1001 to drive the rotating disk 10 to rotate. A limit block is installed inside the slider 12. When the limit block contacts the end of the threaded rod 13, the slider 12... The slider 12 is secured at one end of the threaded rod 13 to prevent it from sliding out of the threaded rod 13 when it reaches the end of the threaded rod 13. At the same time, the sensing end 17 also controls the balance pressure bar on the balance oil tank 5 to move upward and lift, providing flow space for the subsequent hydraulic oil to flow under force. When the rotating disk 10 rotates, the first hydraulic rod 14 is driven to swing around the central axis of the rotating disk 10 through the drive sleeve. During this process, if the clamping head 15 at the end of the first hydraulic rod 14 contacts the outer wall of the aluminum material, the clamping head 15 is compressed by the obstruction of the aluminum material surface, causing the piston rod of the first hydraulic rod 14 to contract, so that the excess hydraulic oil inside the first hydraulic rod 14 is transported to the balance oil pipe 16. In the flow space created by the upward lifting of the balance bar, the different protrusions on the aluminum surface are initially clamped adaptively. After the initial adaptive clamping is completed, the balance bar is automatically controlled to move downward, pushing the hydraulic oil inside the balance oil tank 5 to be transported along the receiving oil pipe 501 and different balance oil pipes 16. (It should be noted that a start time for the downward movement of the balance bar can be preset. After the balance bar is controlled to move upward by the sensing end 17 and reaches the preset start time, the balance bar is automatically controlled to move downward.) Finally, the hydraulic oil is transported to each of the first hydraulic rods 14 to replenish the hydraulic oil inside each first hydraulic rod 14, which is convenient for those not in contact with the aluminum material. The clamping head 15 extends from the piston rod of the first hydraulic rod 14 to achieve full contact clamping of the outer wall of the aluminum material. (Regarding when the downward movement of the balance pressure rod ends, it should be noted that a pressure sensor can be installed on each clamping head 15. During the clamping process, when the pressure of each pressure sensor reaches the preset pressure range value, it indicates that the aluminum material has been stably clamped, and at this time, the downward movement of the balance pressure rod is stopped.) This facilitates the stable clamping of aluminum materials of different shapes by the multiple clamping heads 15 rotating with the rotary disk 10, so as to facilitate subsequent cutting work. (In addition, the balance oil pipe 16 and the receiving oil pipe 501 are both made of flexible hose.)

[0035] The cutting structure includes a housing 21 rotatably connected to the end of the second hydraulic rod 19 via a connector 2101, a connecting plate 2301 disposed at the bottom of the inner wall of the housing 21, a servo motor 22 placed on top of the connecting plate 2301, and a pressure plate 26 attached to the top of the servo motor 22. A saw blade 7 is fixedly connected to the output end of the servo motor 22. A symmetrically distributed slide rod 27 is fixedly connected to the top of the pressure plate 26. The top of the slide rod 27 extends through and is exposed on the top of the housing 21. Two first springs 2701 are disposed between the housing 21 and the pressure plate 26. The two first springs 2701 are respectively sleeved on the two slide rods 27.

[0036] One end of the connecting plate 2301 is fixedly connected to a limiting rod 23, and one end of the limiting rod 23 is rotatably connected to a horizontal plate 25. A limiting plate 24 is fixedly fitted on the limiting rod 23, and the extension surface of the limiting plate 24 is positioned directly above the horizontal plate 25. A third spring 31 is provided on one side between the horizontal plate 25 and the extension surface of the limiting plate 24.

[0037] In this embodiment, after the aluminum material is stably clamped, the second hydraulic rod 19 extends downwards due to the oil injection from the main control oil tank 6. Then, the servo motor 22 inside the housing 21 is activated, causing the saw blade 7 to rotate, thereby cutting the clamped aluminum material. The connecting plate 2301 at the bottom of the servo motor 22 is limited by the oscillating chip removal structure via the limiting rod 23. When blocked by the oscillating chip removal structure, the horizontal plate 25 temporarily halts the descent of the second hydraulic rod 19 and causes the horizontal plate 25 to drive the connecting plate 2301 upwards to lift the servo motor 22. The servo motor 22 then pushes the slide rod 27 upwards via the pressure plate 26, causing the first spring 2701 on the slide rod 27 to contract. This temporarily disengages the saw blade 7 from the aluminum material, creating a space between the saw blade 7 and the cut. The chips located in the cut are then discharged with the airflow in the direction of the saw blade 7's rotation. To prevent inconvenience caused by excessive debris accumulation during cutting, the horizontal plate 25, through the setting of the third spring 31 between it and the limiting plate 24, initially has a greater resistance than the elastic contraction component in the compensation structure. When the second hydraulic rod 19 is blocked by the horizontal plate 25, the pressure generated by the restricted second hydraulic rod 19 will enter the compensation structure along with the hydraulic oil. The hydraulic oil in the compensation structure will start to push the elastic contraction component inside, making the resistance of the elastic contraction component greater than that of the third spring 31. Thus, the resistance of the compensation structure is greater than that of the third spring 31. Therefore, as the hydraulic oil inside the second hydraulic rod 19 gradually increases, the horizontal plate 25 is rotated upward under the action of hydraulic thrust and squeezes the third spring 31. At the same time, the rotated horizontal plate 25 avoids the swing chip removal structure, allowing the second hydraulic rod 19 to continue to extend downward to the next depth of the cutting area.

[0038] The oscillating chip removal structure includes a fixed plate 8 fixedly connected to the bottom of the connecting frame 18. A curved groove 802 is provided on the fixed plate 8. A limiting rod 23 is set in the curved groove 802, and the limiting plate 24 and the horizontal plate 25 at its end are both located on one side of the curved groove 802. A barrier plate 801 arranged in a vertical array is fixedly connected to the outer right side of the fixed plate 8. One end of the barrier plate 801 is in contact with one end of the horizontal plate 25.

[0039] In this embodiment, the limiting rod 23 is located within the curved groove 802. While the second hydraulic rod 19 and the housing 21 move downwards, the rod oscillates slightly according to the curvature of the curved groove 802, thereby increasing the contact area between the saw blade 7 and the aluminum material and increasing cutting efficiency. When the horizontal plate 25 contacts the barrier plate 801, the horizontal plate 25 temporarily halts the descent of the second hydraulic rod 19 and causes the horizontal plate 25 to drive the connecting plate 2301 to lift the servo motor 22 upwards. Subsequently, the servo motor 22 pushes the slide rod 27 upwards through the pressure plate 26, causing the first spring 2701 on the slide rod 27 to contract. This temporarily separates the saw blade 7 from the aluminum material and creates a certain space between the saw blade 7 and the cut. The debris located in the cut is discharged from the cut with the airflow in the rotation direction of the saw blade 7, preventing excessive debris accumulation from causing cutting problems. Due to the inconvenience of operation, the horizontal plate 25, through the setting of the third spring 31 between it and the limiting plate 24, makes the resistance of the horizontal plate 25 greater than that of the elastic contraction component in the compensation structure in the initial stage. When the second hydraulic rod 19 is blocked by the obstruction plate 801 due to the horizontal plate 25, the pressure generated by the obstruction of the second hydraulic rod 19 will enter the compensation structure along with the hydraulic oil. The hydraulic oil in the compensation structure begins to push the elastic contraction component inside, making the resistance of the elastic contraction component greater than that of the third spring 31. Therefore, as the hydraulic oil inside the second hydraulic rod 19 gradually increases, the horizontal plate 25 is caused to rotate upward and squeeze the third spring 31 under the action of hydraulic thrust. At the same time, the rotated horizontal plate 25 avoids the obstruction plate 801, allowing the second hydraulic rod 19 to continue to extend downward to the next depth of the cutting area.

[0040] The compensation structure includes an extension block fixedly connected to the bottom of the connecting frame 18. A compensation oil chamber 28 is fixedly connected to the bottom of the extension block. The compensation oil chamber 28 is connected to the second hydraulic rod 19. A pressing member 29 is slidably arranged at the oil inlet of the compensation oil chamber 28. A second spring 30 is arranged between the pressing member 29 and the compensation oil chamber 28.

[0041] In this embodiment, when the second hydraulic rod 19 is blocked by the obstruction plate 801 on the horizontal plate 25, the pressure generated by the restricted obstruction of the second hydraulic rod 19 will enter the compensation oil chamber 28 along with the hydraulic oil. This will increase the thrust of the hydraulic oil entering the compensation oil chamber 28, causing the extruder 29 to begin to compress and contract the second spring 30. Initially, the resistance of the third spring 31 on the horizontal plate 25 is greater than that of the second spring 30. It should be noted that if the horizontal plate 25 is directly pushed down by the second hydraulic rod 19, when the horizontal plate 25 is blocked, the pressure inside the second hydraulic rod 19 will rise rapidly as the amount of oil increases. This high pressure will cause great damage to the seals, piston rod, and other components of the second hydraulic rod 19, and may even cause the second hydraulic rod 19 to jam and become unable to move. The compensation oil chamber 28 allows excess hydraulic oil to be injected into it, preventing the second hydraulic rod 19 from being blocked. Excessive internal pressure prevents jamming, much like a full cup overflowing if more water is poured in. The compensating oil chamber 28 acts as an "overflow cup or pressure relief area." When there is too much hydraulic oil in the second hydraulic rod 19, the excess oil flows into the compensating oil chamber 28, ensuring the second hydraulic rod 19... The internal pressure is within a safe range. When the second spring 30 contracts to a certain extent, its spring force will be greater than that of the third spring 31. Therefore, as the hydraulic oil inside the second hydraulic rod 19 gradually increases, the horizontal plate 25 is rotated upward and squeezes the third spring 31 under the action of hydraulic thrust. At the same time, the rotated horizontal plate 25 avoids the baffle plate 801, allowing the second hydraulic rod 19 to continue to extend downward to the next depth of the cutting area. It should be noted that the gap between each baffle plate 801 is used to allow some oil in the compensation oil chamber 28 to flow back into the second hydraulic rod 19 when entering the next area. In this way, the second spring 30 in the compensation oil chamber 28 gradually returns to its original length, so that its own resistance will be less than that of the third spring 31 on the horizontal plate 25. This allows the horizontal plate 25 to continue to be blocked by the baffle plate 801 for a certain period of time, which facilitates the discharge of debris from the cut. In addition, the main control oil tank 6 The oil injection action is controlled in real time by a pressure sensor and a regulating valve. When the pressure inside the second hydraulic rod 19 is detected to be too high, the regulating valve will briefly reduce the oil injection speed to avoid overpressure. After the pressure is released, the oil injection speed of the compensation oil chamber 28 will automatically recover, ensuring that the second hydraulic rod 19 extends smoothly to the next cutting area.

[0042] Working principle: When using this high-precision aluminum profile cutting and positioning device,

[0043] I. Adaptation and Clamping Stage: The aluminum material to be cut slides along the linear guide rail 3 through the placement plate 301 into the central area of ​​the rotating disk 10. After the sensing end 17 detects the aluminum material, it triggers the start of the drive motor. The drive motor drives the threaded rod 13 to rotate, causing the slider 12 to move towards one end of the threaded rod 13. The drive rod on the slider 12, because it is embedded in the drive groove of the drive plate 1001, slides towards one end of the drive groove, causing the drive plate 1001 to drive the rotating disk 10 to rotate in the direction of the slider 12. At the same time, the sensing end 17 also controls the balance pressure rod on the balance oil tank 5 to move upward and lift, providing flow space for the subsequent hydraulic oil to be forcefully flow. When the rotating disk 10 rotates, the drive sleeve drives the first hydraulic rod 14 to swing around the central axis of the rotating disk 10. During this process, if the clamping head 15 at the end of the first hydraulic rod 14 contacts the outer wall of the aluminum material, the clamping head 15, under the obstruction and pressure of the aluminum material surface, causes the first hydraulic rod to... The piston rod of rod 14 retracts, causing excess hydraulic oil inside the first hydraulic rod 14 to be transported through the balance oil pipe 16 to the flow space created by the upward lifting of the balance pressure rod. This allows for adaptive initial clamping of different protrusions on the surface of the aluminum material. After the adaptive initial clamping is completed, the balance pressure rod is automatically controlled to move downward, pushing the hydraulic oil inside the balance oil tank 5 to be transported along the receiving oil pipe 501 and different balance oil pipes 16, and finally transported to each of the first hydraulic rods 14 to replenish the hydraulic oil inside each first hydraulic rod 14. This allows the clamping head 15, which is not in contact with the aluminum material, to extend along the piston rod of the first hydraulic rod 14 and achieve full contact clamping of the outer wall of the aluminum material. This facilitates the stable clamping of aluminum materials of different shapes by the multiple clamping heads 15 that rotate with the rotating disk 10. In addition, the friction contact surface of the clamping head 15 ensures that aluminum materials with different cross-sectional shapes, such as rhombuses, polygons, and triangles, can be stably clamped.

[0044] II. Oscillating Cutting Stage: After the aluminum material is stably clamped, the second hydraulic rod 19 extends downward due to the oil injection from the main control oil tank 6. Then, the servo motor 22 inside the housing 21 is started, causing the servo motor 22 to drive the saw blade 7 to rotate. While the second hydraulic rod 19 and the housing 21 move downward, they oscillate slightly according to the curvature of the curved groove 802 through the limit rod 23, causing the saw blade 7 to oscillate synchronously, thereby increasing the contact area of ​​the saw blade 7 with the aluminum material.

[0045] 3. Chip Removal Stage: When the horizontal plate 25 contacts the barrier plate 801, the horizontal plate 25 temporarily stops the descent of the second hydraulic rod 19 and causes the horizontal plate 25 to drive the connecting plate 2301 to lift the servo motor 22 upward. Then, the servo motor 22 pushes the slide rod 27 upward through the pressure plate 26, causing the first spring 2701 on the slide rod 27 to contract, thereby causing the saw blade 7 to temporarily detach from the aluminum material and creating a certain space between the saw blade 7 and the cut. The chips located in the cut are discharged from the cut with the airflow in the rotation direction of the saw blade 7, avoiding the saw blade 7 from wearing due to excessive chip accumulation and the possibility that the chips may melt and adhere to the cut surface at the high temperature of cutting to form burrs.

[0046] IV. Compensation and Reset Stage: When the horizontal plate 25 contacts the barrier plate 801, the second hydraulic rod 19 is in a stopped state. When there is too much hydraulic oil in the second hydraulic rod 19, the excess oil can flow into the compensation oil chamber 28 to ensure that the pressure inside the second hydraulic rod 19 is within a safe range and to prevent the second hydraulic rod 19 from jamming. When the second hydraulic rod 19 is blocked by the barrier plate 801 due to the horizontal plate 25, the pressure generated by the restricted blockage of the second hydraulic rod 19 will enter the compensation oil chamber 28 along with the hydraulic oil. This will increase the thrust of the hydraulic oil entering the compensation oil chamber 28, causing the extruder 29 to begin to compress and contract the second spring 30. Initially, the resistance of the third spring 31 of the horizontal plate 25 is greater than that of the second spring 30. When the second spring 30 contracts to a certain extent, its spring force will be greater than that of the third spring 31. Therefore, as the hydraulic oil inside the second hydraulic rod 19 gradually increases, the hydraulic thrust will increase. Under the action of the pressure, the horizontal plate 25 is rotated upward and squeezes the third spring 31. At the same time, the rotated horizontal plate 25 avoids the baffle plate 801, allowing the second hydraulic rod 19 to continue to extend downward to the next depth of the cutting area. In addition, the gap between each baffle plate 801 is used to allow some of the oil in the compensation oil chamber 28 to flow back into the second hydraulic rod 19 when entering the next area. In this way, the second spring 30 in the compensation oil chamber 28 gradually returns to its original length, so that its own resistance is less than that of the third spring 31 on the horizontal plate 25. This allows the horizontal plate 25 to continue to be blocked by the baffle plate 801 for a certain period of time, which facilitates the discharge of debris from the cut.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-precision aluminum profile cutting and positioning device, comprising a cutting machine (1), a worktable (2) fixedly mounted on the cutting machine (1), a linear guide rail (3) mounted on the worktable (2), a placement plate (301) for placing aluminum profiles slidably mounted on the linear guide rail (3), and a connecting frame (18) fixedly connected to the cutting machine (1), characterized in that: It also includes a clamping and positioning structure set on the workbench (2) for adapting to clamping and positioning aluminum profiles of different shapes, a main control oil tank (6) fixed on the top of the connecting frame (18), a second hydraulic rod (19) rotatably set at the bottom of the connecting frame (18) and connected to the main control oil tank (6), a cutting structure rotatably connected to the end of the second hydraulic rod (19), a swing chip removal structure set at the bottom of the connecting frame (18) for assisting in limiting the lifting and lowering movement of the cutting structure, and a compensation structure set at the bottom of the connecting frame (18) for compensating the hydraulic oil in the second hydraulic rod (19). The outer wall of the second hydraulic rod (19) is fixedly connected to an oil supply pipe (20), the other end of which is connected to the main control oil tank (6). The positioning structure includes a base (9) fixed on the workbench (2), a support frame (4) fixedly connected to the base (9), and a rotating disk (10) rotatably mounted on the support frame (4). The rotating disk (10) contains a sensing end (17) for sensing aluminum materials. A movable groove is provided within the rotating disk (10). First rotating shafts (1002) are rotatably mounted on the rotating disk (10) at equal angles. A drive sleeve is fixedly connected to one end of each first rotating shaft (1002) located within the movable groove. A first hydraulic rod (14) is fixedly connected to each drive sleeve. A second rotating shaft (1401) is provided at one end of each first hydraulic rod (14). Each second rotating shaft (1401) has a... All ends are fixedly connected to the support frame (4). The end of the first hydraulic rod (14) is slidably provided with a clamping head (15). The surface of the clamping head (15) is specifically multiple friction contact surfaces. One side of the first hydraulic rod (14) is fixedly connected to a balance oil pipe (16). Each balance oil pipe (16) is set in the support frame (4) and connected to each other. The base (9) is fixedly connected to a balance oil tank (5). One side of the balance oil tank (5) is fixedly connected to a receiving oil pipe (501). One end of the receiving oil pipe (501) is set in the support frame (4) and connected to the balance oil pipe (16). The top of the balance oil tank (5) is slidably provided with a balance lifting rod for balancing hydraulic oil. The cutting structure includes The housing (21) is rotatably connected to the end of the second hydraulic rod (19) via a connector (2101), a connecting plate (2301) is provided at the bottom of the inner wall of the housing (21), a servo motor (22) is placed on top of the connecting plate (2301), and a pressure plate (26) is attached to the top of the servo motor (22). The output end of the servo motor (22) is fixedly connected to a saw blade (7). The top of the pressure plate (26) is fixedly connected to symmetrically distributed slide rods (27). The top of the slide rods (27) extends through and is exposed on the top of the housing (21). Two first springs (2701) are provided between the housing (21) and the pressure plate (26). The two first springs (2701) are respectively sleeved on the two slide rods (27).One end of the connecting plate (2301) is fixedly connected to a limiting rod (23), and one end of the limiting rod (23) is rotatably connected to a horizontal plate (25). A limiting plate (24) is sleeved and fixed on the limiting rod (23). The extension surface of the limiting plate (24) is positioned directly above the horizontal plate (25). A third spring (31) is provided on one side between the horizontal plate (25) and the extension surface of the limiting plate (24). The oscillating chip removal structure includes a fixed plate (8) fixedly connected to the bottom of the connecting frame (18). A curved groove (802) is provided on the fixed plate (8). The limiting rod (23) is located in the curved groove (802), and the limiting plate (24) at its end and the horizontal plate (25) are both located on one side of the curved groove (802). A vertically arrayed barrier plate (801) is fixedly connected to the outer wall of the fixed plate (8). One end of the barrier plate (801) is in contact with one end of the horizontal plate (25).

2. The high-precision aluminum profile cutting and positioning device according to claim 1, characterized in that: A fixing block (11) is fixedly connected to the side wall of the support frame (4). A threaded rod (13) is rotatably arranged inside the fixing block (11). A drive motor is provided on one side of the fixing block (11), and the end of the drive motor is connected to the threaded rod (13). A slider (12) is threadedly connected to the threaded rod (13). A drive plate (1001) for driving the rotation of the rotating disk (10) is fixedly connected to the outer wall of the rotating disk (10). A drive groove is opened on the drive plate (1001). A drive rod is fixedly connected to one side of the slider (12), and the end of the drive rod is arranged in the drive groove.

3. The high-precision aluminum profile cutting and positioning device according to claim 1, characterized in that: The compensation structure includes an extension block fixedly connected to the bottom of the connecting frame (18), and a compensation oil chamber (28) fixedly connected to the bottom of the extension block. The compensation oil chamber (28) is connected to the second hydraulic rod (19). A pressing member (29) is slidably arranged at the oil inlet of the compensation oil chamber (28), and a second spring (30) is arranged between the pressing member (29) and the compensation oil chamber (28).

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