High-precision aluminum profile cutting positioning device

Abstract

The invention discloses a high-precision aluminum profile cutting and positioning device, which relates to the technical field of aluminum profiles and comprises a cutting machine tool, a worktable fixedly arranged on the cutting machine tool, a linear guide rail arranged on the worktable, a placing plate slidably arranged on the linear guide rail and used for placing aluminum profiles, and a connecting frame fixedly connected to the cutting machine tool, the clamping and positioning structure is arranged on the workbench and adapts to clamping and positioning of aluminum profiles of different shapes, the main control oil tank is fixed to the top of the connecting frame, and the second hydraulic rod is rotationally arranged at the bottom of the connecting frame and communicates with the main control oil tank. The invention relates to a method. The problems that when an existing aluminum profile cutting and positioning device treats aluminum profiles in special geometrical shapes (such as triangles, rhombuses and polygons), certain limitation still exists, saw teeth of a saw blade are abraded due to the fact that too many chippings are accumulated on the saw blade, and the chippings are possibly melted at the high cutting temperature and are attached to the fracture surface of a notch to form burrs are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum profiles, and specifically to a high-precision aluminum profile cutting and positioning device. Background Art

[0002] A high-precision aluminum profile cutting and positioning device is a key equipment for ensuring accurate cutting dimensions and smooth cut surfaces of aluminum profiles, and is widely used in industries such as construction, automotive, aerospace, and electronics.

[0003] For example, a high-precision aluminum profile cutting and positioning device with the publication number CN114799335A can achieve the attitude adjustment of the positioning mechanism according to the shape of the aluminum profile, fix the aluminum profile, move the clamping plates corresponding to the shape of the aluminum profile to both sides of the aluminum profile, and adjust the air flow channels. The air paths on both sides of the aluminum profile are symmetrical, and the piston heads on each side are evenly stressed, improving 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 dealing with aluminum materials with special geometric shapes (such as triangles, rhombuses, polygons, etc.): Firstly, since the traditional clamping mechanism is mainly designed for regular rectangular or circular cross-sections, when facing aluminum materials with sharp edges or asymmetric 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 the clamping force. For example, the vertex area of triangular aluminum materials may slip due to too small contact area, and the alternating stress on the corners of polygonal aluminum materials may cause micro-displacements, ultimately affecting the straightness of the cutting path.

[0004] Secondly, in terms of debris handling during the cutting process, traditional manual cutting requires frequent pauses in operation to lift the saw blade and clean the accumulated chips at the cut. If an automated device continues to cut, it is easy for the high-speed rotating saw blade to squeeze the aluminum chips into the cut slit, increasing the frictional resistance, resulting in wear of the saw teeth of the saw blade. At the same time, the aluminum chips may melt and adhere to the cut section under the high temperature of cutting, forming burrs, making the section rough and affecting subsequent assembly or surface treatment processes.

[0005] In response to the above problems, there is an urgent need to innovate and design on the basis of the original aluminum profile cutting and positioning device. Summary of the Invention

[0006] The technical solution of the present invention addresses the technical problem of the overly single technical solution of the existing technology, and provides a solution significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a high-precision aluminum profile cutting and positioning device to solve the problems in the above background art that there are still certain limitations in the existing aluminum profile cutting and positioning devices when dealing with aluminum materials with special geometric shapes (such as triangles, rhombuses, polygons, etc.), as well as the saw teeth of the saw blade are worn due to excessive accumulation of debris and the debris may melt and adhere to the cut section under the high temperature of cutting to form burrs.

[0007] To achieve the above object, the present invention provides the following technical solutions: a high-precision aluminum profile cutting and positioning device, including a cutting machine tool, a workbench fixedly arranged on the cutting machine tool, a linear guide arranged on the workbench, a placement plate slidably arranged on the linear guide for placing aluminum materials, and a connecting frame fixedly connected to the cutting machine tool. It further includes a clamping and positioning structure arranged on the workbench for adaptively clamping and positioning aluminum profiles of different shapes, a main control oil tank fixed on the top of the connecting frame, a second hydraulic rod rotatably arranged at the bottom of the connecting frame and communicated with the main control oil tank, a cutting structure rotatably connected to the end of the second hydraulic rod, a swinging chip removal structure arranged at the bottom of the connecting frame for assisting in limiting the lifting and moving of the cutting structure, and a compensation structure arranged at the bottom of the connecting frame for compensating the hydraulic oil in the second hydraulic rod. An oil delivery pipe is fixedly communicated with the outer wall of the second hydraulic rod, and the other end of the oil delivery pipe is communicated with the main control oil tank.

[0008] Preferably, the clamping and positioning structure includes a base fixed on the workbench, a support frame fixedly connected to the base, and a rotating disk rotatably arranged on the support frame. An induction end for sensing aluminum materials is arranged in the rotating disk. An activity groove is formed in the rotating disk. First rotating shafts are rotatably arranged on the rotating disk at equal angles. One end of each first rotating shaft located in the activity groove is fixedly connected with a driving sleeve. A first hydraulic rod is fixedly connected in each driving sleeve. One end of each first hydraulic rod is provided with a second rotating shaft, and one end of each second rotating shaft is fixedly connected to the support frame.

[0009] Preferably, a clamping head is slidably arranged at the end of the first hydraulic rod. The surface of the clamping head is specifically multiple friction contact surfaces. A balance oil pipe is fixedly communicated with one side of the first hydraulic rod. Each balance oil pipe is arranged in the support frame and communicated with each other. A balance oil tank is fixedly connected to the base. A receiving oil pipe is fixedly communicated with one side of the balance oil tank. One end of the receiving oil pipe is arranged in the support frame and connected to the balance oil pipe. A balance lifting rod for balancing hydraulic oil is slidably arranged on the top of the balance oil tank.

[0010] Preferably, a fixed block is fixedly connected to the side wall of the support frame. A threaded rod is rotatably arranged in the fixed block. A driving motor is arranged on one side of the fixed block, and the end of the driving motor is connected to the threaded rod. A slider is threadedly connected to the threaded rod. A driving plate for driving the rotation of the rotating disk is fixedly connected to the outer wall of the rotating disk. A driving groove is formed in the driving plate. A driving rod is fixedly connected to one side of the slider, and the end of the driving rod is arranged in the driving groove.

[0011] Preferably, the cutting structure includes a housing rotatably connected to the end of the second hydraulic rod through a connecting member, a connecting plate provided at the bottom of the inner wall of the housing, a servo motor placed on the top of the connecting plate, and a pressing plate attached to the top of the servo motor. The output end of the servo motor is fixedly connected to a saw blade. The top of the pressing plate is fixedly connected with symmetrically distributed sliding rods. The top of the sliding rods penetrates through and exposes at the top of the housing. Two first springs are provided between the housing and the pressing plate, and the two first springs are respectively sleeved on the two sliding rods.

[0012] Preferably, one end of the connecting plate is fixedly connected with a limiting rod. One end of the limiting rod is rotatably connected with a cross plate. A limiting plate is fixedly sleeved on the limiting rod. The extending surface of the limiting plate is placed directly above the cross plate. A third spring is provided on one side between the cross plate and the extending surface of the limiting plate.

[0013] Preferably, the swing chip removal structure includes a fixing plate fixedly connected to the bottom of the connecting frame. A curved groove is formed in the fixing plate. The limiting rod is arranged in the curved groove, and the limiting plate and the cross plate at its end are both located on one side of the curved groove. The outer wall of the fixing plate is fixedly connected with vertically arranged baffle plates. One end of the baffle plate is in contact with one end of the cross plate.

[0014] Preferably, the compensation structure includes an extension block fixedly connected to the bottom of the connecting frame. A compensation oil chamber is fixedly connected to the bottom of the extension block. The compensation oil chamber is communicated with the second hydraulic rod. A pressing member is slidably arranged at the oil inlet of the compensation oil chamber. A second spring is provided between the pressing member and the compensation oil chamber.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. After the sensing end detects the aluminum material, the driving motor is triggered to start. The driving motor drives the threaded rod to rotate, causing the slider to move toward one end of the threaded rod. The driving rod on the slider is embedded in the driving groove of the driving plate, causing the driving rod to slide toward one end of the driving groove, and causing the driving plate to drive the rotating disk to rotate in the direction of the slider. At the same time, the sensing end also controls the balance pressure rod on the balance oil tank to move up and provide flow space for the subsequent hydraulic oil to flow under force. When the clamping head at the end of the first hydraulic rod contacts the outer wall of the aluminum material, the clamping head is blocked and squeezed by the surface of the aluminum material, causing the piston rod of the first hydraulic rod to shrink, causing the redundant internal part of the first hydraulic rod to The hydraulic oil is transported through the balance oil pipe to the flow space generated by the upward movement of the balance pressure rod, so as to achieve adaptive preliminary clamping of different protrusions on the surface of the aluminum material. After the adaptive preliminary clamping is completed, the balance pressure rod is automatically controlled to move downward to push the hydraulic oil inside the balance oil tank through the receiving oil pipe and different balance oil pipes, and finally transported to each first hydraulic rod, so as to replenish the hydraulic oil inside each first hydraulic rod, so as to facilitate the clamping head that has not contacted the aluminum material to extend the piston rod of the first hydraulic rod, and achieve full contact clamping of the outer wall of the aluminum material, so as to facilitate the multiple clamping heads rotating with the rotating disk to achieve stable clamping of aluminum materials of different shapes; 2. When the aluminum material is stably clamped, the second hydraulic rod is extended downward by the oil injection of the main control oil tank, and then the servo motor in the shell is started, so that the servo motor drives the saw blade to rotate. While the second hydraulic rod and the shell move downward, the limit rod swings slightly according to the curvature of the curved groove, so that the saw blade swings synchronously, thereby increasing the area of ​​the saw blade contacting the aluminum material. When the cross plate contacts the blocking plate, the cross plate temporarily stops the descending work of the second hydraulic rod, and the cross plate drives the connecting plate to lift the servo motor upward, and then the servo motor pushes the slide bar upward through the pressure plate, so that the first spring on the slide bar contracts, so that the saw blade temporarily breaks away from contact with the aluminum material, and a certain space is created between the saw blade and the incision, and the debris in the incision is discharged from the incision along the airflow in the direction of rotation of the saw blade, so as to avoid the saw blade teeth being worn due to excessive accumulation of debris, and the debris may melt under the high cutting temperature and adhere to the incision section to form burrs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the aluminum profile cutting and positioning device of the present invention.

[0017] Figure 2 It is a schematic diagram of the cutting state of the overall structure of the aluminum profile cutting and positioning device of the present invention.

[0018] Figure 3 It is a schematic diagram of the clamping and positioning structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the swing chip removal structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the cutting structure of the present invention.

[0021] Figure 6 This is a plan view of the cutting structure of the present invention.

[0022] Figure 7 This is a schematic diagram of the compensation structure of the present invention.

[0023] Figure 8 is Figure 6 an enlarged view of the structure at position A of

[0024] In the figure: 1. Cutting machine tool; 2. Workbench; 3. Linear guide rail; 301. Placing plate; 4. Support frame; 5. Balance oil tank; 501. Receiving oil pipe; 6. Main control oil tank; 7. Saw blade; 8. Fixed plate; 801. Partition plate; 802. Curved groove; 9. Base; 10. Rotating disk; 1001. Driving plate; 1002. First rotating shaft; 11. Fixed block; 12. Slide block; 13. Threaded rod; 14. First hydraulic rod; 1401. Second rotating shaft; 15. Clamping head; 16. Balance oil pipe; 17. Inductive end; 18. Connecting frame; 19. Second hydraulic rod; 20. Oil delivery pipe; 21. Shell; 2101. Connecting piece; 22. Servo motor; 23. Limiting rod; 2301. Connecting plate; 24. Limiting plate; 25. Horizontal plate; 26. Pressing plate; 27. Slide rod; 2701. First spring; 28. Compensation oil cavity; 29. Extrusion piece; 30. Second spring; 31. Third spring. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 8, the present invention provides a technical solution: a high-precision aluminum profile cutting and positioning device, including a cutting machine tool 1, a workbench 2 fixedly arranged on the cutting machine tool 1, a linear guide rail 3 arranged on the workbench 2, a placement plate 301 slidably arranged on the linear guide rail 3 for placing aluminum materials, and a connecting frame 18 fixedly connected to the cutting machine tool 1. It further includes a clamping and positioning structure arranged on the workbench 2 for adaptively 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 arranged at the bottom of the connecting frame 18 and communicated with 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 arranged at the bottom of the connecting frame 18 for assisting in limiting the lifting and moving of the cutting structure, and a compensation structure arranged 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 communicated with an oil delivery pipe 20, and the other end of the oil delivery pipe 20 is communicated with the main control oil tank 6; the rotation setting of the second hydraulic rod 19 at the bottom of the connecting frame 18 is a swing setting, the rotational connection between the second hydraulic rod 19 and the cutting structure is a swing connection, and the oil delivery pipe 20 is made of a hose material.

[0027] In this embodiment, the aluminum material to be cut is placed on the placement plate 301. Subsequently, the aluminum material moves towards one end of the linear guide rail 3 through the placement plate 301 and enters the clamping and positioning structure. Then, the clamping and positioning structure detects the entry of the aluminum material and performs adaptive clamping and positioning according to the shape of the aluminum material. After the aluminum material is firmly clamped, the main control oil tank 6 injects oil into the second hydraulic rod 19 through the oil delivery pipe 20, causing the second hydraulic rod 19 to start extending downward, and the cutting structure at its end gradually contacts the aluminum material and performs cutting work. While the second hydraulic rod 19 extends downward, the swing chip removal structure for limiting the lifting of the cutting structure swings slightly and pauses to lift the cutting structure while the cutting structure cuts the aluminum material. The slight swing can increase the cutting area range of the aluminum material. When the cutting structure is in a paused and lifted state, the chips generated in the cutting incision can be driven by the airflow in the rotation direction of the saw blade 7 to be discharged from the incision, which is more convenient for subsequent cutting of the aluminum material, improves the smoothness of the incision, and extends the service life of the saw blade 7. The setting of the compensation structure enables the cutting structure to receive the excess hydraulic oil in the second hydraulic rod 19 in a paused state, preventing the second hydraulic rod 19 from getting stuck. As the hydraulic oil accumulates more in the compensation structure, the resistance in the compensation structure is greater than the pause resistance of the swing chip removal structure, causing the cutting structure to avoid the current pause barrier, so that the cutting structure can enter a deeper cutting depth to cut the aluminum material.

[0028] The clamping and 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 arranged on the support frame 4. An induction end 17 for sensing the aluminum material is arranged in the rotating disk 10. An activity groove is formed in the rotating disk 10. First rotating shafts 1002 distributed at equal angles are rotatably arranged on the rotating disk 10. A driving sleeve is fixedly connected to one end of each first rotating shaft 1002 located in the activity groove. A first hydraulic rod 14 is fixedly connected to each driving sleeve. A second rotating shaft 1401 is arranged 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.

[0029] A clamping head 15 is slidably arranged 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 communicated with one side of the first hydraulic rod 14. Each balance oil pipe 16 is arranged in the support frame 4 and communicated with each other. A balance oil tank 5 is fixedly connected to the base 9. A receiving oil pipe 501 is fixedly communicated with one side of the balance oil tank 5. One end of the receiving oil pipe 501 is arranged in the support frame 4 and connected to the balance oil pipe 16. A balance lifting rod for balancing the hydraulic oil is slidably arranged on the top of the balance oil tank 5.

[0030] A fixed block 11 is fixedly connected to the side wall of the support frame 4. A threaded rod 13 is rotatably arranged in the fixed block 11. A driving motor is arranged on one side of the fixed block 11, and the end of the driving motor is connected to the threaded rod 13. A slider 12 is threadedly connected to the threaded rod 13. A driving plate 1001 for driving the rotation of the rotating disk 10 is fixedly connected to the outer wall of the rotating disk 10. A driving groove is formed in the driving plate 1001. A driving rod is fixedly connected to one side of the slider 12, and the end of the driving rod is arranged in the driving groove.

[0031] As 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, and a rotating disk 10 is rotatably arranged in the support frame 4, and a sensing end 17 for sensing aluminum is arranged in the rotating disk 10. Therefore, when the aluminum enters the rotating disk 10, the sensing end 17 starts the driving motor, and after the driving motor is started, the threaded rod 13 is driven to rotate. After the threaded rod 13 rotates, the slider 12 slides toward one end of the threaded rod 13, and the slider 12 moves in the driving groove through the driving rod, so that the driving plate 1001 drives the rotating disk 10 to rotate, and a limit block is arranged in the slider 12. When the limit block contacts the end of the threaded rod 13, the slider 12 is The first hydraulic rod 14 is stuck at one end of the threaded rod 13 to prevent the slider 12 from sliding out of the threaded rod 13 when it slides to the end of the threaded rod 13. At the same time, the sensing end 17 also controls the balance pressure rod on the balance oil tank 5 to move up 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 by the driving sleeve to swing with the central axis of the rotating disk 10. In 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 blocked and squeezed by the surface of the aluminum material, causing the piston rod of the first hydraulic rod 14 to contract, so that the excess hydraulic oil in the first hydraulic rod 14 is transported to the balance oil tank 5 through the balance oil pipe 16. In the flow space generated by the upward movement of the balancing pressure rod, the different protrusions on the surface of the aluminum material are adaptively initially clamped. After the adaptive initial clamping is completed, the balancing pressure rod is automatically controlled to move downward to push the hydraulic oil inside the balancing oil tank 5 to be transported along the receiving oil pipe 501 and different balancing oil pipes 16 (it should be noted that a starting time for the downward movement of the balancing pressure rod can be pre-set. After the balancing pressure rod is controlled by the upward movement of the sensing end 17 and reaches the preset starting time, the balancing pressure rod is automatically controlled to move downward), and finally transported to each first hydraulic rod 14 to replenish the hydraulic oil inside each first hydraulic rod 14, so as to facilitate the aluminum material that has not been touched. 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 (as to when the downward movement of the balancing 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 means that the aluminum material is stably clamped. At this time, the further downward movement of the balancing pressure rod is stopped to push the oil), so that the multiple clamping heads 15 rotating with the rotating disk 10 can achieve stable clamping of aluminum materials of different shapes for subsequent cutting work (in addition, the balancing oil pipe 16 and the receiving oil pipe 501 are both made of hose material).

[0032] The cutting structure includes a shell 21 which is rotatably connected to the end of the second hydraulic rod 19 through a connecting piece 2101, a connecting plate 2301 arranged at the bottom of the inner wall of the shell 21, a servo motor 22 placed on the top of the connecting plate 2301, and a pressure plate 26 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 sliding rods 27, the top of the sliding rod 27 passes through and is exposed at the top of the shell 21, and two first springs 2701 are arranged between the shell 21 and the pressure plate 26, and the two first springs 2701 are respectively mounted on the two sliding rods 27.

[0033] One end of the connecting plate 2301 is fixedly connected to the limiting rod 23, one end of the limiting rod 23 is rotatably connected to the transverse plate 25, a limiting plate 24 is fixedly sleeved on the limiting rod 23, an extended surface of the limiting plate 24 is placed directly above the transverse plate 25, and a third spring 31 is provided on one side between the transverse plate 25 and the extended surface of the limiting plate 24.

[0034] As the present embodiment, after the aluminum material is stably clamped, the second hydraulic rod 19 is extended downward by the oil injection of the main control oil tank 6, and then the servo motor 22 in the shell 21 is started, so that the servo motor 22 drives the saw blade 7 to rotate, thereby cutting the clamped aluminum material, and the connecting plate 2301 at the bottom of the servo motor 22 is set by the limiting rod 23 and is limited by the swinging chip removal structure. When blocked by the swinging chip removal structure, the cross plate 25 temporarily stops the descending work of the second hydraulic rod 19, and the cross plate 25 drives the connecting plate 2301 to lift the servo motor 22 upward, and then the servo motor 22 pushes the slide bar 27 upward through the pressure plate 26, so that the first spring 2701 on the slide bar 27 contracts, so that the saw blade 7 temporarily breaks away from the contact with the aluminum material, and a certain space is created between the saw blade 7 and the incision, and the debris in the incision is discharged along the airflow in the rotation direction of the saw blade 7. In order to avoid the inconvenience of cutting work caused by excessive accumulation of debris, the third spring 31 is set between the cross plate 25 and the limit plate 24, so that the resistance of the cross plate 25 in the initial stage is greater than the elastic contraction component in the compensation structure. When the second hydraulic rod 19 is blocked by the cross plate 25, and the pressure generated after the second hydraulic rod 19 is blocked and restricted 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 it, so that the resistance of the elastic contraction component is greater than the third spring 31, thereby making the resistance of the compensation structure greater than the third spring 31. Therefore, as the hydraulic oil in the second hydraulic rod 19 gradually increases, the cross plate 25 is prompted to rotate upward and squeeze the third spring 31 under the action of the hydraulic driving force. At the same time, the rotated cross plate 25 avoids the swing chip removal structure, so that the second hydraulic rod 19 can continue to extend downward to the next depth of the cutting area.

[0035] The swinging chip removal structure includes a fixed plate 8 fixedly connected to the bottom of the connecting frame 18, and a curved groove 802 is opened on the fixed plate 8. The limiting rod 23 is arranged in the curved groove 802, and the limiting plate 24 and the cross plate 25 at its end are both located on one side of the curved groove 802. The right outer wall of the fixed plate 8 is fixedly connected with a blocking plate 801 distributed in a vertical array, and one end of the blocking plate 801 is in contact with one end of the cross plate 25.

[0036] As the present embodiment, the limit rod 23 is located in the curved groove 802, so that the second hydraulic rod 19 and the housing 21 move downward and swing slightly according to the curvature of the curved groove 802, thereby increasing the range of the saw blade 7 contacting the aluminum material and increasing the cutting efficiency. When the cross plate 25 contacts the blocking plate 801, the cross plate 25 temporarily stops the descending work of the second hydraulic rod 19, and the cross plate 25 drives the connecting plate 2301 to lift the servo motor 22 upward, and then the servo motor 22 pushes the slide bar 27 upward through the pressure plate 26, so that the first spring 2701 on the slide bar 27 contracts, so that the saw blade 7 temporarily breaks away from the contact with the aluminum material, and a certain space is created between the saw blade 7 and the incision, and the debris in the incision is discharged from the incision along with the airflow in the rotation direction of the saw blade 7, so as to avoid cutting caused by excessive accumulation of debris. To avoid inconvenience in work, the third spring 31 is set between the cross plate 25 and the limit plate 24, so that the resistance of the cross plate 25 in the initial stage is greater than the elastic contraction component in the compensation structure. When the second hydraulic rod 19 is blocked by the blocking plate 801 due to the cross plate 25, and the pressure generated after the second hydraulic rod 19 is blocked and restricted 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 it, making the resistance of the elastic contraction component greater than the third spring 31. Therefore, as the hydraulic oil in the second hydraulic rod 19 gradually increases, the cross plate 25 is prompted to rotate upward and squeeze the third spring 31 under the action of the hydraulic driving force. At the same time, the rotated cross plate 25 avoids the blocking plate 801, so that the second hydraulic rod 19 can continue to extend downward to the next cutting depth.

[0037] The compensation structure includes an extension block fixedly connected to the bottom of the connecting frame 18, and 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, and an extrusion piece 29 is slidably arranged at the oil inlet of the compensation oil chamber 28, and a second spring 30 is arranged between the extrusion piece 29 and the compensation oil chamber 28.

[0038] As the present embodiment, when the second hydraulic rod 19 is blocked by the blocking plate 801 due to the cross plate 25, the pressure generated by the second hydraulic rod 19 after being blocked will enter the compensation oil chamber 28 along with the hydraulic oil, so that the hydraulic oil entering the compensation oil chamber 28 begins to increase the thrust of the extrusion member 29, so that the extrusion member 29 begins to squeeze and contract the second spring 30. Initially, the resistance of the third spring 31 of the cross plate 25 is greater than the second spring 30. It should be noted that if the cross plate 25 is directly pushed downward by the second hydraulic rod 19, when the cross plate 25 is blocked, as the oil increases, the pressure inside the second hydraulic rod 19 will increase rapidly. This high pressure will cause great damage to the seals, piston rods and other components of the second hydraulic rod 19, and may even cause the second hydraulic rod 19 to be stuck and unable to move. The setting of the compensation oil chamber 28 allows excess hydraulic oil to be injected into it, thereby avoiding the second hydraulic rod 19 The internal pressure is too high, thus preventing the occurrence of jamming. Just like a cup full of water, if you continue to pour water into it, the water will overflow. The compensation oil chamber 28 is equivalent to an "overflow cup or pressure relief area". 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 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 the spring force of the third spring 31. Therefore, as the hydraulic oil in the second hydraulic rod 19 gradually increases, the hydraulic driving force causes the cross plate 25 to rotate upward and squeeze the third spring 31. At the same time, the rotated cross plate 25 avoids the blocking plate 801, so that the second hydraulic rod 19 can continue to extend downward to the next depth of the cutting area. It should be noted that the gap between each blocking plate 801 is used to compensate for the part of the oil in the oil chamber 28 when entering the next area. The oil will flow back to the second hydraulic rod 19, so that the second spring 30 in the oil chamber 28 gradually recovers its original length, so that its own resistance will be less than the third spring 31 on the cross plate 25, so that the cross plate 25 can continue to be blocked by the blocking plate 801 to produce a certain stagnation time, thereby facilitating the discharge of debris in the incision. In addition, the main control oil tank 6 The oil injection action is controlled in real time by the pressure sensor and the regulating valve. When it is detected that the pressure in the second hydraulic rod 19 is too high, the regulating valve will temporarily reduce the oil injection speed to avoid overpressure. After the pressure in the compensation oil chamber 28 is released, the oil injection speed is automatically restored to ensure that the second hydraulic rod 19 extends smoothly to the next cutting area.

[0039] Working principle: When using this high-precision aluminum profile cutting and positioning device, 1. Adaptation to clamping stage: the aluminum material to be cut slides into the central area of ​​the rotating disk 10 along the linear guide 3 through the placement plate 301. After the sensing end 17 detects the aluminum material, it triggers the drive motor to start. The drive motor drives the threaded rod 13 to rotate, so that the slider 12 moves toward one end of the threaded rod 13. The drive rod on the slider 12 is embedded in the drive groove of the drive plate 1001, so that the drive rod slides toward one end of the drive groove, and the drive plate 1001 drives 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 up and lift, providing flow space for the subsequent hydraulic oil force flow. When the rotating disk 10 rotates, the first hydraulic rod 14 is driven by the drive sleeve to swing about the central axis of the rotating disk 10. In 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 blocked and squeezed by the surface of the aluminum material, prompting the first hydraulic The piston rod of the rod 14 contracts, so that the excess hydraulic oil inside the first hydraulic rod 14 is transported to the flow space generated by the upward movement of the balancing pressure rod through the balancing oil pipe 16, so as to achieve adaptive preliminary clamping of different protrusions on the surface of the aluminum material. After the adaptive preliminary clamping is completed, the balancing pressure rod is automatically controlled to move downward to push the hydraulic oil inside the balancing oil tank 5 to be transported along the receiving oil pipe 501 and different balancing oil pipes 16, and finally transported to each first hydraulic rod 14, so as to replenish the hydraulic oil inside each first hydraulic rod 14, so as to facilitate the clamping head 15 that has not contacted the aluminum material to extend the piston rod of the first hydraulic rod 14, and achieve full contact clamping of the outer wall of the aluminum material, so as to facilitate the multiple clamping heads 15 rotating with the rotating disk 10 to achieve stable clamping of aluminum materials of different shapes. In addition, the friction contact surface of the clamping head 15 ensures that aluminum materials with different cross-sectional shapes such as rhombus, polygon and triangle can be stably clamped; 2. Swing cutting stage: when the aluminum material is stably clamped, the second hydraulic rod 19 is extended downward by the oil injection of the main control oil tank 6, and then the servo motor 22 in the housing 21 is started, so that the servo motor 22 drives the saw blade 7 to rotate. While the second hydraulic rod 19 and the housing 21 move downward, the limit rod 23 swings slightly according to the curvature of the curved groove 802, so that the saw blade 7 swings synchronously, thereby increasing the area of ​​the saw blade 7 contacting the aluminum material; 3. Chip removal stage: When the horizontal plate 25 contacts the blocking plate 801, the horizontal plate 25 temporarily stops the descending work of the second hydraulic rod 19, and the horizontal plate 25 drives the connecting plate 2301 to lift the servo motor 22 upward, and then the servo motor 22 pushes the slide bar 27 upward through the pressure plate 26, so that the first spring 2701 on the slide bar 27 contracts, so that the saw blade 7 temporarily breaks away from the contact with the aluminum material, and a certain space is created between the saw blade 7 and the incision, and the debris in the incision is discharged from the incision along the airflow in the rotation direction of the saw blade 7, so as to avoid the saw blade 7 from being worn due to excessive accumulation of debris, and the debris may melt under the high cutting temperature and adhere to the incision section to form burrs; 4. Compensation and reset stage: when the cross plate 25 contacts the blocking plate 801, the second hydraulic rod 19 is in a stagnant 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, thereby avoiding the second hydraulic rod 19 from getting stuck. When the second hydraulic rod 19 is blocked by the blocking plate 801 due to the cross plate 25, the pressure generated after the second hydraulic rod 19 is blocked will enter the compensation oil chamber 28 along with the hydraulic oil, so that the hydraulic oil entering the compensation oil chamber 28 begins to increase the thrust of the extrusion member 29, so that the extrusion member 29 begins to squeeze and contract the second spring 30. At first, the resistance of the third spring 31 of the cross 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 the spring force of the third spring 31. Therefore, as the hydraulic oil inside the second hydraulic rod 19 gradually increases, under the hydraulic pushing force Under the action of, the cross plate 25 is prompted to rotate upward and squeeze the third spring 31. At the same time, the rotated cross plate 25 avoids the blocking plate 801, so that the second hydraulic rod 19 can continue to extend downward to the next cutting depth. In addition, the gap between each blocking plate 801 is used to compensate for the part of the oil in the oil chamber 28 when entering the next area. The oil will flow back into the second hydraulic rod 19, so that the second spring 30 in the oil chamber 28 gradually recovers its original length, so that its own resistance will be smaller than the third spring 31 on the cross plate 25, so that the cross plate 25 can continue to be blocked by the blocking plate 801 to produce a certain stagnation time, thereby facilitating the discharge of the debris in the incision.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision aluminum profile cutting and positioning device, comprising a cutting machine (1), a workbench (2) fixedly mounted on the cutting machine (1), a linear guide rail (3) mounted on the workbench (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 (1), characterized in that: It also includes a clamping and positioning structure arranged on the workbench (2) for adapting to clamping and positioning aluminum profiles of different shapes, a main control oil tank (6) fixed to the top of the connecting frame (18), a second hydraulic rod (19) rotatably arranged 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 arranged 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 arranged at the bottom of the connecting frame (18) for compensating for the hydraulic oil in the second hydraulic rod (19), wherein the outer wall of the second hydraulic rod (19) is fixedly connected to an oil delivery pipe (20), and the other end of the oil delivery pipe (20) is connected to the main control oil tank (6).

2. The high-precision aluminum profile cutting and positioning device according to claim 1, characterized in that: The clamping and positioning structure comprises a base (9) fixed on a workbench (2), a support frame (4) fixedly connected to the base (9), and a rotating disk (10) rotatably arranged on the support frame (4); a sensing end (17) for sensing aluminum material is arranged in the rotating disk (10); a movable groove is provided in the rotating disk (10); first rotating shafts (1002) distributed at equal angles are rotatably arranged on the rotating disk (10); one end of each of the first rotating shafts (1002) located in the movable groove is fixedly connected to a driving sleeve; each of the driving sleeves is fixedly connected to a first hydraulic rod (14); one end of each of the first hydraulic rods (14) is provided with a second rotating shaft (1401); one end of each of the second rotating shafts (1401) is fixedly connected to the support frame (4).

3. The high-precision aluminum profile cutting and positioning device according to claim 2, characterized in that: A clamping head (15) is slidably provided at the end of the first hydraulic rod (14), and the surface of the clamping head (15) is specifically a plurality of friction contact surfaces. A balancing oil pipe (16) is fixedly connected to one side of the first hydraulic rod (14), and each of the balancing oil pipes (16) is arranged in the support frame (4) and is interconnected. A balancing oil tank (5) is fixedly connected to the base (9), and a receiving oil pipe (501) is fixedly connected to one side of the balancing oil tank (5), and one end of the receiving oil pipe (501) is arranged in the support frame (4) and is connected to the balancing oil pipe (16). A balancing jacking rod for balancing hydraulic oil is slidably provided on the top of the balancing oil tank (5).

4. The high-precision aluminum profile cutting and positioning device according to claim 2, 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 in the fixing block (11), a driving motor is arranged on one side of the fixing block (11), and the end of the driving motor is connected to the threaded rod (13), a slider (12) is threadedly connected to the threaded rod (13), a driving plate (1001) for driving the rotating disk (10) to rotate is fixedly connected to the outer wall of the rotating disk (10), a driving groove is provided on the driving plate (1001), a driving rod is fixedly connected to one side of the slider (12), and the end of the driving rod is arranged in the driving groove.

5. The high-precision aluminum profile cutting and positioning device according to claim 1, characterized in that: The cutting structure comprises a housing (21) rotatably connected to the end of a second hydraulic rod (19) via a connecting piece (2101), a connecting plate (2301) arranged at the bottom of the inner wall of the housing (21), a servo motor (22) placed on the top of the connecting plate (2301), and a pressing plate (26) fitted on the top of the servo motor (22), wherein a saw blade (7) is fixedly connected to the output end of the servo motor (22), a symmetrically distributed sliding rod (27) is fixedly connected to the top of the pressing plate (26), the top of the sliding rod (27) passes through and is exposed at the top of the housing (21), and two first springs (2701) are arranged between the housing (21) and the pressing plate (26), and the two first springs (2701) are respectively sleeved on the two sliding rods (27).

6. The high-precision aluminum profile cutting and positioning device according to claim 5, characterized in that: One end of the connecting plate (2301) is fixedly connected to a limit rod (23), one end of the limit rod (23) is rotatably connected to a transverse plate (25), a limit plate (24) is sleeved and fixed on the limit rod (23), an extension surface of the limit plate (24) is placed directly above the transverse plate (25), and a third spring (31) is provided on one side between the transverse plate (25) and the extension surface of the limit plate (24).

7. The high-precision aluminum profile cutting and positioning device according to claim 6, characterized in that: The swing chip removal structure comprises a fixed plate (8) fixedly connected to the bottom of the connecting frame (18), the fixed plate (8) being provided with a curved groove (802), the limiting rod (23) being arranged in the curved groove (802), and the limiting plate (24) and the cross plate (25) at the end thereof being both located on one side of the curved groove (802), and the outer wall of the fixed plate (8) being fixedly connected with blocking plates (801) distributed in a vertical array, and one end of the blocking plate (801) being in contact with one end of the cross plate (25).

8. The high-precision aluminum profile cutting and positioning device according to claim 1, characterized in that: The compensation structure comprises 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 communicated with the second hydraulic rod (19); an extrusion piece (29) is slidably provided at the oil inlet of the compensation oil chamber (28); and a second spring (30) is provided between the extrusion piece (29) and the compensation oil chamber (28).

Images