Door and window profile multi-station synchronous pressing device and pressure balancing method thereof

Abstract

The invention relates to the technical field of door and window machining, in particular to a door and window profile multi-station synchronous pressing device and a pressure balancing method thereof.The door and window profile multi-station synchronous pressing device comprises a workbench, and the top surface of the workbench is connected with a rotating disc in an attached mode; a plurality of clamping assemblies are symmetrically arranged on the periphery of the surface of the top of the rotating disc, a plurality of rotating blocks are fixedly installed on the surface of the bottom of the rotating disc, a circular groove is formed in the middle of the surface of the top of the workbench in an opening and closing mode, and the rotating blocks are slidably connected with the circular groove; a rotating assembly is arranged on the surface of the bottom of the workbench; the rotating assembly comprises a containing box fixedly connected with the workbench. By arranging the multiple clamping assemblies, the four edges of a door and window can be stably clamped, so that the stability of the door and window during machining is ensured, meanwhile, by arranging the rotating assembly, the clamped door and window can be rotated, different positions of the door and window can be conveniently machined, and the machining efficiency of the door and window is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window processing, and in particular to a multi-station synchronous pressing device for door and window profiles and a pressure balancing method thereof. Background Art

[0002] When processing existing doors and windows, they need to be fixed on a workbench before being processed. In the existing technology, doors and windows are mostly stabilized by using two or four clamping assemblies to clamp the doors and windows, thereby ensuring the stability of the doors and windows during processing.

[0003] Publication No. CN103538007A discloses a door and window processing and pressing device. Through the adsorption effect of the suction rod, on the one hand, the door and window will not shake due to the existence of the adsorption force. On the other hand, the suction rod has a strong pressing force on the door and window, which can flatten the door and window frame, thereby facilitating the deep processing of the door and window, and improving the processing accuracy and efficiency. However, this patent still has the following problems in actual use:

[0004] Through the adsorption effect of the suction rod, on the one hand, the doors and windows will not shake due to the existence of the adsorption force. On the other hand, the suction rod has a strong pressing force on the doors and windows, which can flatten the door and window frames, thereby facilitating the deep processing of the doors and windows and improving the processing accuracy and efficiency. However, when processing different positions of the doors and windows, the staff are required to process the doors and windows around the workbench, which will not only greatly consume the physical strength of the staff, but also reduce the processing efficiency of the doors and windows.

[0005] A multi-station synchronous pressing device for door and window profiles and a pressure balancing method thereof are proposed to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-station synchronous pressing device for door and window profiles and a pressure balancing method thereof, so as to solve the problem proposed in the above background technology that the adsorption effect of the suction rod currently prevents the doors and windows from shaking due to the existence of the adsorption force, and on the other hand, the pressing force of the suction rod on the doors and windows is very large, which can flatten the door and window frames, thereby facilitating the deep processing of the doors and windows and improving the processing accuracy and efficiency. However, when processing different positions of the doors and windows, the staff are required to process the doors and windows around the workbench, which will not only greatly consume the physical strength of the staff, but also reduce the processing efficiency of the doors and windows.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a multi-station synchronous pressing device for door and window profiles and a pressure balancing method thereof, comprising a workbench, the top surface of which is fitted with a rotating disk;

[0008] A plurality of clamping assemblies are symmetrically arranged around the top surface of the rotating disk, a plurality of rotating blocks are fixedly installed on the bottom surface of the rotating disk, a circular groove is opened and closed in the middle of the top surface of the workbench, and the rotating blocks are slidably connected to the circular groove;

[0009] Also includes:

[0010] The bottom surface of the workbench is provided with a rotating assembly;

[0011] Wherein, the rotating assembly includes a placement box fixedly connected to the workbench;

[0012] Among them, a stepping motor is fixedly installed inside the placement box.

[0013] Preferably, a first pulley is connected through the surface of one side of the stepper motor output end near the top, a belt is fitted and connected to the surface of the first pulley, a second pulley is fitted and connected to the surface of the belt away from the first pulley, and a rotating rod is connected through the middle of the second pulley.

[0014] Preferably, the bottom surface of the rotating rod is rotatably connected to the placement box, and the rotating rod is through-connected to the workbench.

[0015] Preferably, the bottom surface of the rotating disk is fixedly connected to the rotating rod.

[0016] Preferably, the clamping assembly includes a fixing frame fixedly connected to the rotating disk, an electric push rod is connected through the middle of the fixing frame, a mounting block is symmetrically installed on one side surface of the electric push rod, and a connecting block is fitly connected to the bottom surface of the mounting block.

[0017] Preferably, a threaded rod is connected through the middle of the interior of the installation block and the connection block, and nuts are threadedly connected to the two side surfaces of the threaded rod.

[0018] Preferably, a pressing plate is fixedly connected to a surface of one side of the connecting block away from the mounting block.

[0019] Preferably, a pressure balancing method for a multi-station synchronous pressing device for door and window profiles comprises the following steps:

[0020] S1. Clamping parameter setting: According to the material and thickness of the door and window profiles, the output pressure of the electric push rod is set through the control end. The pressure of aluminum alloy profiles is set to 300-500N, and the pressure of plastic profiles is set to 150-300N. The pressure error is controlled within the range of ±20N.

[0021] S2. Synchronous pressing and starting: Place the door and window profile at the center of the rotating disk, start all clamping components, and the output end of the electric push rod extends synchronously at a speed of 5-10mm / s. After the pressing plate contacts the edge of the profile, the pressure value is fed back in real time through the pressure sensor. The control end dynamically adjusts the output force of each electric push rod based on the feedback data. The pressure difference on the four sides is ≤30N;

[0022] S3, rotation positioning adjustment: if different positions of the profile need to be processed, start the stepper motor (602), which drives the rotating rod and the rotating disk to rotate at a speed of 5-10° / s through the first pulley, the belt and the second pulley. The rotating block slides in the circular groove and guides. After it is in place, the stepper motor self-locks, and the positioning accuracy is ≤±0.5°;

[0023] S4. Pressure secondary calibration: After the rotation stops, the control end detects the pressure value of each clamping component again. If the pressure fluctuation due to rotation exceeds 50N, the corresponding electric push rod is automatically driven to add pressure or release pressure. The calibration time is ≤2s;

[0024] S5. Release after processing: After processing, the electric push rod retracts synchronously, and the four sides of the profile are released from the clamping state at the same time.

[0025] Preferably, in S2, a pressure buffer layer is provided on the surface where the pressing plate contacts the profile, a grid-like anti-slip pattern is provided on the surface of the buffer layer, and the alignment deviation between the clamping surface of the pressing plate and the edge of the profile is ≤1mm to prevent the profile from shifting during clamping.

[0026] Preferably, in S3, the stepper motor adopts a subdivision drive mode, the rotation process is smooth and without jerks, the belt tension is controlled by adjusting the tensioning pulley in the placement box, and the transmission error is ≤0.5°; and an annular wear-resistant gasket is arranged between the bottom of the rotating disk and the workbench, and the friction coefficient is ≤0.05.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the multi-station synchronous pressing device for door and window profiles, by providing multiple clamping components, can stably clamp the four sides of the door and window, thereby ensuring stability during the processing of the door and window; at the same time, by providing a rotating component, the clamped door and window can be rotated, so that different positions of the door and window can be processed more conveniently, thereby improving the processing efficiency of the door and window to a certain extent. The specific contents are as follows:

[0028] 1. By setting a rotating component, when the doors and windows are clamped and different positions of the doors and windows need to be processed, the stepper motor is started through the control end, and the rotation rate of the stepper motor is adjusted through the control end, so that the rotation rate of the output end of the stepper motor is reduced, and the rotation of the output end of the stepper motor drives the rotation of the first pulley, and the rotation of the first pulley drives the rotation of the belt, the second pulley and the rotating rod, so that the rotating rod can rotate the rotating disk and the clamped stable doors and windows, so that after the doors and windows are rotated to the appropriate position, the stepper motor is turned off through the control end, so that the staff can process different positions of the doors and windows, thereby eliminating the need for the staff to rotate around the workbench to process different positions of the doors and windows, so that the physical consumption of the staff can be reduced to a certain extent, and the processing efficiency of the staff on the doors and windows can also be improved;

[0029] 2. By setting up the clamping assembly, when clamping the doors and windows, by placing the doors and windows in the middle position of the rotating disk, and then synchronously starting multiple clamping assemblies through the control end, the output ends of the electric push rods on the multiple clamping assemblies are synchronously extended, and the extension of the output ends of the electric push rods can drive the movement of the clamping plates, so that the multiple clamping plates can clamp the four sides of the doors and windows firmly. At the same time, due to the synchronous start of multiple electric push rods, the doors and windows can be firmly placed in the middle position of the rotating disk, which makes it convenient for subsequent staff to process the doors and windows. At the same time, by setting the cooperation between the mounting block, the connecting block, the threaded rod and the nut, it is possible to clamp the four sides of the doors and windows made of different materials. When clamping, if a different clamping plate needs to be replaced, the nut can be rotated by using a tool to completely separate the nut from the threaded rod, and then the threaded rod can be pulled to completely separate the threaded rod from the connecting block and the mounting block, so that the clamping plate can be replaced. When installing the clamping plate, the connecting block is placed in the middle position of the two mounting blocks, so that the holes on the connecting block and the mounting block are aligned, and the threaded rod is passed through the connecting block and the mounting block, and then the nut is threaded on the threaded rod, so that the installation of the clamping plate can be completed. In this way, doors and windows of different materials can be clamped with clamping plates of different materials, thereby avoiding scratches on the edges of doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure of the clamping assembly in the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the rotating disk and the rotating block in the present invention;

[0033] Figure 4Schematic diagram of the circular groove structure in the present invention;

[0034] Figure 5 This is a schematic diagram of the overall structure of the rotating assembly in the present invention;

[0035] Figure 6 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0036] In the figure: 1. Workbench; 2. Rotating disk; 3. Clamping assembly; 301. Fixed frame; 302. Electric push rod; 303. Mounting block; 304. Connecting block; 305. Threaded rod; 306. Nut; 307. Pressing plate; 4. Rotating block; 5. Circular groove; 6. Rotating assembly; 601. Placement box; 602. Stepping motor; 603. First pulley; 604. Belt; 605. Second pulley; 606. Rotating rod. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] See also Figure 1-6 The present invention provides a technical solution: a multi-station synchronous pressing device for door and window profiles, comprising a workbench 1, the top surface of the workbench 1 is fitted with a rotating disk 2; a plurality of clamping components 3 are symmetrically arranged around the top surface of the rotating disk 2, a plurality of rotating blocks 4 are fixedly installed on the bottom surface of the rotating disk 2, a circular groove 5 is opened and closed in the middle of the top surface of the workbench 1, and the rotating blocks 4 are slidably connected to the circular groove 5; further comprising: a rotating component 6 is provided on the bottom surface of the workbench 1; wherein the rotating component 6 includes a placement box 601 fixedly connected to the workbench 1; wherein a stepping motor 602 is fixedly installed inside the placement box 601, such as Figure 1-6 As shown, by setting up multiple clamping components 3, the four sides of the doors and windows can be stably clamped, thereby ensuring stability when the doors and windows are processed. At the same time, by setting up a rotating component 6, the clamped doors and windows can be rotated, so that different positions of the doors and windows can be processed more conveniently, thereby improving the processing efficiency of the doors and windows to a certain extent, and the number of clamping components 3 is not less than four.

[0039] The output end of the stepper motor 602 is connected to a first pulley 603 on one side surface near the top, the first pulley 603 is connected to a belt 604 on the surface, the belt 604 is connected to a second pulley 605 on the side surface away from the first pulley 603, the second pulley 605 is connected to a rotating rod 606 in the middle, the bottom surface of the rotating rod 606 is connected to the placement box 601 for rotation, the rotating rod 606 is connected to the workbench 1, and the bottom surface of the rotating disk 2 is fixedly connected to the rotating rod 606. Figure 5 As shown, the stepper motor 602 is started by the control end, and the rotation rate of the stepper motor 602 is adjusted by the control end, so that the rotation rate of the output end of the stepper motor 602 is reduced. The rotation of the output end of the stepper motor 602 drives the rotation of the first pulley 603. The rotation of the first pulley 603 drives the rotation of the belt 604, the second pulley 605 and the rotating rod 606, so that the rotating rod 606 can rotate the rotating disk 2 and the clamped stable door and window, so that the door and window can be rotated to a suitable position. The stepper motor 602 is turned off by the control end, so that the staff can process different positions of the door and window, so that the staff does not need to rotate around the workbench 1 to process different positions of the door and window, so that the physical consumption of the staff can be reduced to a certain extent, and the staff's processing efficiency of the door and window can also be improved. At the same time, the model of the stepper motor 602 is 86BYG250-113, and the stepper motor 602 is electrically connected to the control end.

[0040] The clamping assembly 3 includes a fixing frame 301 fixedly connected to the rotating disk 2, an electric push rod 302 is connected through the middle of the fixing frame 301, a mounting block 303 is symmetrically mounted on one side surface of the electric push rod 302, a connecting block 304 is fitted on the bottom surface of the mounting block 303, a threaded rod 305 is connected through the middle of the mounting block 303 and the connecting block 304, nuts 306 are threadedly connected to the two side surfaces of the threaded rod 305, and a pressing plate 307 is fixedly connected to the side surface of the connecting block 304 away from the mounting block 303. Figure 2 、 6As shown, multiple clamping assemblies 3 are started synchronously by the control end, so that the output ends of the electric push rods 302 on the multiple clamping assemblies 3 are extended synchronously. The extension of the output ends of the electric push rods 302 can drive the movement of the clamping plates 307, so that the multiple clamping plates 307 can clamp the four sides of the door and window firmly. At the same time, due to the synchronous start of multiple electric push rods 302, the door and window can be firmly fixed in the middle position of the rotating disk 2, which makes it convenient for subsequent staff to process the door and window. At the same time, by setting the cooperation between the mounting block 303, the connecting block 304, the threaded plug rod 305 and the nut 306, when the four sides of the door and window made of different materials need to be clamped and different clamping plates 307 need to be replaced, the nut 306 is rotated by using a tool to completely separate the nut 306 from the threaded plug rod 305, and then the threaded plug rod 305 is completely separated from the connecting block 304 and the mounting block 303. The pressing plate 307 can be replaced, and when installing the pressing plate 307, by placing the connecting block 304 in the middle position of the two mounting blocks 303 so that the holes on the connecting block 304 and the mounting block 303 are aligned, the threaded rod 305 is passed through the connecting block 304 and the mounting block 303, and then the nut 306 is threaded onto the threaded rod 305, so that the installation of the pressing plate 307 can be completed. In this way, doors and windows of different materials can be pressed with pressing plates 307 of different materials, thereby avoiding scratches on the edges of doors and windows. At the same time, the model of the electric push rod 302 is Andite ANT-52. The maximum load of this model of electric push rod 302 can reach 6000N, the protection level is IP67, it has good dust and water resistance, can adapt to the complex environment of door and window processing workshops, and it can be selected as a low-noise model with smooth operation and can resist vibration to a certain extent. The push rod stroke can be customized.

[0041] The present invention also discloses a pressure balancing method for a multi-station synchronous pressing device for door and window profiles, which is used to operate the multi-station synchronous pressing device for door and window profiles, and includes the following steps:

[0042] S1. Clamping parameter setting: According to the material and thickness of the door and window profile, the output pressure of the electric push rod 302 is set through the control end. The pressure of aluminum alloy profile is set to 300-500N, and the pressure of plastic profile is set to 150-300N. The pressure error is controlled within the range of ±20N.

[0043] S2. Synchronous pressing and starting: Place the door and window profile at the center of the rotating disk 2, start all the clamping components 3, and the output ends of the electric push rods 302 extend synchronously at a speed of 5-10 mm / s. After the pressing plate 307 contacts the edge of the profile, the pressure value is fed back in real time through the pressure sensor (accuracy ±5N). The control end dynamically adjusts the output force of each electric push rod 302 based on the feedback data to ensure that the pressure difference on the four sides is ≤30N;

[0044] S3. Rotational positioning adjustment: If different positions of the profile need to be processed, start the stepper motor 602. Through the first pulley 603, belt 604 and second pulley 605, the rotation rod 606 and the rotating disk 2 are driven to rotate at a speed of 5-10° / s. The rotating block 4 slides and guides in the circular groove 5 (sliding resistance ≤ 8N). After it is in place, the stepper motor 602 self-locks, and the positioning accuracy is ≤ ±0.5°.

[0045] S4. Pressure secondary calibration: After the rotation stops, the control end detects the pressure value of each clamping component 3 again. If the pressure fluctuation caused by the rotation exceeds 50N, the corresponding electric push rod 302 is automatically driven to replenish or relieve pressure. The calibration time is ≤ 2s;

[0046] S5. Release after processing is completed: After processing is completed, the electric push rod 302 retracts synchronously (speed 8-12mm / s) to ensure that the four sides of the profile are released from the compressed state at the same time to avoid deformation of the profile due to uneven force.

[0047] In S2, a pressure buffer layer (3-5mm thick, silicone material with a Shore hardness of 50-60A) is set on the surface of the clamping plate 307 that contacts the profile, and a grid-shaped anti-slip pattern (0.5mm depth, 2mm spacing) is provided on the surface of the buffer layer. The alignment deviation between the clamping surface of the clamping plate 307 and the edge of the profile is ≤1mm to prevent the profile from shifting during clamping.

[0048] In S3, the stepper motor 602 adopts a subdivision drive mode (subdivision multiple 16) to ensure that the rotation process is smooth and without jerks. The tension of the belt 604 is controlled by adjusting the tensioning pulley in the placement box 601 (adjustment range 5-10mm), and the transmission error is ≤0.5°; and an annular wear-resistant gasket (thickness 1mm, material polytetrafluoroethylene) is arranged between the bottom of the rotating disk 2 and the workbench 1, and the friction coefficient is ≤0.05, ensuring that the rotation accuracy has no obvious attenuation after long-term use.

[0049] Working principle: Before using the multi-station synchronous pressing device for door and window profiles, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 6As shown, first, by setting the rotating component 6, when the doors and windows are clamped, when different positions of the doors and windows need to be processed, the stepper motor 602 is started through the control end, and the rotation rate of the stepper motor 602 is adjusted through the control end, so that the rotation rate of the output end of the stepper motor 602 is reduced, and the rotation of the output end of the stepper motor 602 drives the rotation of the first pulley 603, and the rotation of the first pulley 603 drives the rotation of the belt 604, the second pulley 605 and the rotating rod 606, so that the rotating rod 606 can rotate the rotating disk 2 and the clamped stable doors and windows, so that the doors and windows can be rotated to the appropriate position, and then the stepper motor 602 is turned off through the control end, so that the staff can process different positions of the doors and windows, so that the staff does not need to rotate around the workbench 1 to process different positions of the doors and windows, so that the physical consumption of the staff can be reduced to a certain extent, and the processing efficiency of the staff on the doors and windows can also be improved.

[0050] Secondly, by setting the clamping assembly 3, when clamping the doors and windows, by placing the doors and windows in the middle position of the rotating disk 2, and then synchronously starting multiple clamping assemblies 3 through the control end, the output ends of the electric push rods 302 on the multiple clamping assemblies 3 are synchronously extended, and the extension of the output ends of the electric push rods 302 can drive the movement of the clamping plates 307, so that the multiple clamping plates 307 can clamp the four sides of the doors and windows firmly. At the same time, due to the synchronous start of multiple electric push rods 302, the doors and windows can be firmly fixed in the middle position of the rotating disk 2, which makes it convenient for subsequent staff to process the doors and windows. At the same time, by setting the cooperation between the mounting block 303, the connecting block 304, the threaded rod 305 and the nut 306, different clamping plates 3 need to be replaced when clamping the four sides of doors and windows made of different materials. When the screw threaded rod 305 is screwed in place, the screw threaded rod 305 is screwed in place, and the screw threaded rod 305 is screwed in place.

[0051] 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 scope of protection of the present invention.

Claims

1. A multi-station synchronous pressing device for door and window profiles, comprising a workbench (1), the top surface of the workbench (1) being fitted with a rotating disk (2); A plurality of clamping assemblies (3) are symmetrically arranged around the top surface of the rotating disk (2), a plurality of rotating blocks (4) are fixedly mounted on the bottom surface of the rotating disk (2), a circular groove (5) is opened and closed in the middle of the top surface of the workbench (1), and the rotating blocks (4) are slidably connected to the circular groove (5); It is characterized by: Also includes: The bottom surface of the workbench (1) is provided with a rotating assembly (6); Wherein, the rotating assembly (6) includes a placement box (601) fixedly connected to the workbench (1); Wherein, a stepping motor (602) is fixedly installed inside the placement box (601).

2. The multi-station synchronous pressing device for door and window profiles according to claim 1, characterized in that: A first pulley (603) is connected through a surface on one side of the output end of the stepper motor (602) near the top, a belt (604) is attached to the surface of the first pulley (603), a second pulley (605) is attached to the surface of the belt (604) away from the first pulley (603), and a rotating rod (606) is connected through the middle of the second pulley (605).

3. The multi-station synchronous pressing device for door and window profiles according to claim 2, characterized in that: The bottom surface of the rotating rod (606) is rotatably connected to the placement box (601), and the rotating rod (606) is connected to the workbench (1) through.

4. The multi-station synchronous pressing device for door and window profiles according to claim 2, characterized in that: The bottom surface of the rotating disk (2) is fixedly connected to the rotating rod (606).

5. The multi-station synchronous pressing device for door and window profiles according to claim 1, characterized in that: The clamping assembly (3) comprises a fixing frame (301) fixedly connected to the rotating disk (2); an electric push rod (302) is connected through the middle of the fixing frame (301); a mounting block (303) is symmetrically mounted on one side surface of the electric push rod (302); and a connecting block (304) is fitted and connected to the bottom surface of the mounting block (303).

6. The multi-station synchronous pressing device for door and window profiles according to claim 5, characterized in that: A threaded rod (305) is connected through the middle of the interior of the installation block (303) and the connection block (304), and nuts (306) are threadedly connected to the surfaces of both sides of the threaded rod (305).

7. The multi-station synchronous pressing device for door and window profiles according to claim 5, characterized in that: A pressing plate (307) is fixedly connected to a surface of one side of the connecting block (304) away from the mounting block (303).

8. A pressure equalization method for a multi-station synchronous pressing device for door and window profiles, applied to the multi-station synchronous pressing device for door and window profiles according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Clamping parameter setting: according to the material and thickness of the door and window profile, the output pressure of the electric push rod (302) is set through the control end, wherein the pressure of the aluminum alloy profile is set to 300-500N, and the pressure of the plastic profile is set to 150-300N, and the pressure error is controlled within the range of ±20N; S2. Synchronous pressing and starting: Place the door and window profile at the center of the rotating disk (2), start all the clamping components (3), and the output end of the electric push rod (302) extends synchronously at a speed of 5-10 mm / s. After the pressing plate (307) contacts the edge of the profile, the pressure value is fed back in real time through the pressure sensor. The control end dynamically adjusts the output force of each electric push rod (302) according to the feedback data, and the pressure difference on the four sides is ≤30N; S3, rotation positioning adjustment: If different positions of the profile need to be processed, start the stepper motor (602), which drives the rotating rod (606) and the rotating disk (2) at a speed of 5-10° / s through the first pulley (603), the belt (604) and the second pulley (605). The rotating block (4) slides and guides in the circular groove (5). After it is in place, the stepper motor (602) self-locks, and the positioning accuracy is ≤±0.5°; S4, secondary pressure calibration: After the rotation stops, the control end detects the pressure value of each clamping component (3) again. If the pressure fluctuation caused by the rotation exceeds 50N, the corresponding electric push rod (302) is automatically driven to replenish or relieve pressure. The calibration time is ≤2s; S5. Release after processing is completed: After processing is completed, the electric push rod (302) retracts synchronously, and the four sides of the profile are released from the compressed state at the same time.

9. The pressure equalization method of the multi-station synchronous pressing device for door and window profiles according to claim 8, characterized in that: In S2, a pressure buffer layer is provided on the surface of the pressing plate (307) in contact with the profile, and a grid-shaped anti-slip pattern is provided on the surface of the buffer layer. The alignment deviation between the clamping surface of the pressing plate (307) and the edge of the profile is ≤1mm to prevent the profile from shifting during clamping.

10. The pressure balancing method of the multi-station synchronous pressing device for door and window profiles according to claim 8, characterized in that: In S3, the stepper motor (602) adopts a subdivision drive mode, the rotation process is smooth and without setbacks, the tension of the belt (604) is controlled by adjusting the tensioning wheel in the placement box (601), and the transmission error is ≤0.5°; and an annular wear-resistant gasket is provided between the bottom of the rotating disk (2) and the workbench (1), and the friction coefficient is ≤0.05.

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