Punching processing anti-deviation device for building aluminum alloy formwork plate

Abstract

The application relates to the technical field of building engineering, in particular to a building aluminum alloy formwork plate punching processing anti-deviation device, which comprises a supporting and fixing module, a power module, a transmission and motion conversion module and an execution module; the supporting and fixing module is composed of a base frame, a workbench panel, a stand column and an upper cross beam; the power module comprises a main driving motor and a punching driving motor; the transmission and motion conversion module comprises a synchronous shaft, a ball screw, a linear guide rail and a clamping sliding block; the execution module comprises a floating chuck, a clamping pressing block, a positioning probe, a photoelectric sensor and a punching mechanism; the floating chuck is adapted to realize self-adaptive compression by adopting a butterfly-shaped spring group, the clamping pressing block is adapted to be coated with polyurethane, and the photoelectric sensor is arranged at four corners and a midpoint of the plate. The aluminum alloy formwork can be stably clamped and positioned, and the plate can be effectively prevented from deviating during the punching processing.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a device for preventing deviation during the punching process of aluminum alloy formwork plates for buildings. Background Technology

[0002] With the increasing demand for aluminum alloy formwork in the construction industry, the punching technology for aluminum alloy formwork sheets has also developed rapidly. However, in actual production, the sheets are prone to shifting during punching, leading to reduced processing accuracy and affecting product quality. Although there are many types of anti-shifting devices for sheet punching on the market, they still have many shortcomings in practical applications.

[0003] A search revealed a punching device for anti-deviation stainless steel plates, publication number CN215902548U, published on February 25, 2022. This device uses slots inside a push-pull plate, along with limiting slots and a top block, to clamp and position the plate. However, this design is primarily for stainless steel plates, whose structural strength and material properties differ significantly from aluminum alloy templates. Aluminum alloy templates are lightweight and easily deformable, making the clamping method of this device unsuitable for their material characteristics, potentially causing deformation or damage to the plate during clamping. Furthermore, the anti-deviation structure relies on mechanical friction and threaded locking; for thinner aluminum alloy templates, precise control of the clamping force is difficult. Insufficient force fails to effectively prevent deviation, while excessive force can easily damage the plate.

[0004] A search revealed an automatic punching device with an anti-deviation structure, publication number CN220481946U, published on February 13, 2024. This design uses a motor-driven screw to move the clamping assembly, achieving automatic pushing and clamping of sheet metal, exhibiting a high degree of automation. However, this device is primarily suitable for sheet metal processing in the home building materials industry. Its anti-deviation structure employs a frame design, which is relatively complex and insufficiently adaptable to applications requiring large dimensions and high precision, such as architectural aluminum alloy formwork. Furthermore, the device's clamping mechanism cannot adaptively adjust to aluminum alloy formwork of different thicknesses and specifications, resulting in poor versatility and difficulty in meeting the processing needs of the construction industry for aluminum alloy formwork of various specifications.

[0005] The aforementioned existing technical solutions demonstrate that current anti-deviation devices for punching holes in building aluminum alloy formwork have significant shortcomings in terms of processing: they either cannot adapt to the material characteristics of aluminum alloy formwork or lack a dedicated design for applications in the construction industry. Therefore, there is an urgent need for an anti-deviation device specifically designed for punching holes in building aluminum alloy formwork panels to address the problems of low precision, poor adaptability, and insufficient versatility in existing technologies. Summary of the Invention

[0006] This invention provides an anti-deviation device for punching aluminum alloy formwork panels, which can stably clamp and position the aluminum alloy formwork, effectively prevent the panel from shifting during the punching process, improve processing accuracy, and meet the processing needs of the construction industry for aluminum alloy formwork of different specifications.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The design includes an anti-deviation device for punching aluminum alloy formwork panels, comprising a support and fixing module consisting of a base frame, worktable panel, guide rail mounting base, column, upper crossbeam and anchor bolts; a power module consisting of a main drive motor, punching drive motor, motor mounting plate and coupling; a transmission motion conversion module consisting of a synchronous shaft, ball screw, screw nut, linear guide rail, linear bearing, clamping slider and synchronous gear set; and an execution module consisting of a floating chuck, clamping block, positioning probe, photoelectric sensor, punching mechanism, punch and punching die.

[0009] The base frame is a welded steel plate structure with reinforcing ribs at the four corners to support the overall weight and punching reaction force. The workbench panel is made of heat-treated steel with a ground surface, serving as the load-bearing base for the sheet metal. Multiple columns are provided to support the weight of the upper mold mechanism. The upper crossbeam has a box-type structure and houses the stamping mechanism.

[0010] In the power module, the main drive motor is connected to the ball screw via a coupling, driving the clamping slider to move. The punching drive motor drives the punching mechanism to reciprocate, causing the punch to complete the punching action.

[0011] In the transmission motion conversion module, a synchronous shaft connects multiple clamping units to achieve synchronous drive. A ball screw and screw nut cooperate to convert rotational motion into linear motion, driving the clamping slider to move along a linear guide. The linear guide cooperates with a linear bearing to ensure motion accuracy. A synchronous gear set ensures that the synchronous shaft and ball screw rotate synchronously.

[0012] In the execution module, the floating chuck uses a butterfly spring assembly to achieve adaptive clamping, and the clamping force can be adjusted as needed. The clamping block is coated with polyurethane to avoid damaging the aluminum alloy plate surface. Multiple positioning probes are set, with adjustable extension lengths, and work with photoelectric sensors for positioning. The photoelectric sensors are arranged at the four corners and the midpoint of the plate to monitor the plate's positional offset in real time. The stamping mechanism uses a crank-slider mechanism to realize the reciprocating motion of the punch. The punch is made of high-speed steel, is replaceable, and is used in conjunction with stamping dies.

[0013] Optionally, the floating chuck's disc spring assembly can achieve self-positioning in three directions, adapting to aluminum alloy templates of different thicknesses. The polyurethane coating of the clamping block has moderate hardness, ensuring clamping stability while avoiding damage to the surface of the sheet material.

[0014] Optionally, the photoelectric sensor is a diffuse reflective type, with the detection distance set to an appropriate range to accurately detect changes in the position of the board material. Multiple photoelectric sensors form a frame-type sensing array to achieve full-range monitoring of the board material.

[0015] Optionally, the positioning probe is made of stainless steel, which is corrosion-resistant and has high structural strength. Its adjustable extension length allows it to adapt to aluminum alloy templates of different specifications.

[0016] Optionally, the crank radius of the stamping mechanism is adjustable, allowing for stroke adjustment according to processing requirements and adapting to different punching needs. The stamping die is made of alloy tool steel, and the cutting edge is hardened, resulting in good wear resistance and service life.

[0017] Optionally, the device also includes a guide rail dust cover with a folding structure to protect the linear guide rail from dust and impurities. Limit switches are located at both ends of the slider's stroke to prevent overtravel and protect equipment safety.

[0018] Optionally, the synchronous shaft is made of steel to achieve synchronous drive of the four clamping units, ensuring consistency of clamping actions. The synchronous gear set ensures the smoothness and accuracy of the transmission process.

[0019] The beneficial effects of this invention are as follows: By setting a floating chuck and using a butterfly spring assembly to achieve adaptive clamping, the clamping force can be automatically adjusted according to the thickness of the aluminum alloy template, effectively avoiding deformation or damage to the plate caused by excessive clamping force, while ensuring sufficient clamping force to prevent plate displacement. The polyurethane-coated clamping blocks protect the aluminum alloy plate surface during clamping, preventing indentations. A photoelectric sensor array monitors the plate position in real time, and the clamping system and positioning system are linked in a closed-loop control, ensuring the plate remains stable throughout the punching process and significantly improving processing accuracy. The four-corner independent floating clamping structure design allows the device to adapt to aluminum alloy templates of different thicknesses and specifications, exhibiting good versatility and meeting the processing needs of the construction industry for various specifications of aluminum alloy templates. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the outer structure of the column of the present invention;

[0022] Figure 3 for Figure 2 A magnified view of region A;

[0023] Figure 4 for Figure 2 A magnified diagram of region B.

[0024] Legend:

[0025] 10. Base frame; 20. Workbench panel; 30. Guide rail mounting base; 40. Column; 50. Upper crossbeam; 60. Anchor bolt; 70. Main drive motor; 80. Punching drive motor; 90. Motor mounting plate; 100. Coupling; 110. Synchronous shaft; 120. Ball screw; 130. Screw nut; 140. Linear guide rail; 150. Linear bearing; 160. Clamping slider; 170. Synchronous gear set; 180. Floating chuck; 181. Butterfly spring assembly; 190. Clamping pressure block; 191. Polyurethane coating; 200. Positioning probe; 210. Photoelectric sensor; 220. Punching mechanism; 221. Crank-slider mechanism; 230. Punch; 240. Punching die; 250. Guide rail dust cover; 260. Limit switch. Detailed Implementation

[0026] 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.

[0027] Specific implementation examples are given below.

[0028] See Figures 1-4 An anti-deviation device for punching aluminum alloy formwork panels is disclosed. This device is applied in the field of punching aluminum alloy formwork panels and can stably clamp and position aluminum alloy formwork panels of different specifications and thicknesses. It effectively prevents the panels from shifting during the punching process, significantly improves the processing accuracy, and meets the needs of the construction industry for high-precision processing of aluminum alloy formwork panels.

[0029] Please see Figures 1 to 4 The anti-deviation device for punching aluminum alloy formwork plates provided by the present invention mainly comprises four major components: a support and fixing module, a power module, a transmission motion conversion module, and an execution module. The modules cooperate and coordinate with each other to achieve stable clamping and high-precision punching of aluminum alloy formwork plates.

[0030] The support and fixing module includes a base frame 10, a workbench panel 20, a guide rail mounting base 30, a column 40, an upper crossbeam 50, and anchor bolts 60. The base frame 10 is a welded steel plate structure with reinforcing ribs 11 at its four corners to support the weight of the entire equipment and the reaction force generated during punching. The bottom of the base frame 10 is fixedly connected to the ground via anchor bolts 60 to ensure the stability of the equipment during operation. Four anchor bolts 60 are located at the four corners of the base frame 10 and are reliably connected to the foundation ground via pre-embedded or expansion bolts. The workbench panel 20 is made of heat-treated steel with a ground surface, resulting in a smooth and flat surface, serving as the load-bearing base for the aluminum alloy template. The workbench panel 20 is fixedly installed above the base frame 10 and reliably fixed to the base frame 10 via bolt connections. Multiple columns 40 are provided, the specific number of which can be determined according to the overall size of the equipment and the load-bearing requirements. The bottom of the column 40 is fixedly connected to the base frame 10, and the top supports the upper crossbeam 50, which is used to bear the weight of the upper die mechanism and the forces during the stamping process. The guide rail mounting seat 30 is fixedly installed on the base frame 10, which is used to install and support the linear guide rail 140 to ensure the precise operation of the transmission motion conversion module. The upper crossbeam 50 adopts a box-type structure, which has good rigidity and strength. The upper crossbeam 50 is fixedly installed on the top of the column 40, which is used to install the stamping mechanism 220, punch 230 and other actuators.

[0031] The power module includes a main drive motor 70, a punching drive motor 80, a motor mounting plate 90, and a coupling 100. The main drive motor 70 is fixedly mounted on the side of the base frame 10 via the motor mounting plate 90. The output shaft of the main drive motor 70 is connected to a ball screw 120 via the coupling 100. When the main drive motor 70 is working, it drives the ball screw 120 to rotate, which in turn drives the clamping slider 160 to move along the linear guide rail 140, thus achieving the clamping action of the aluminum alloy template. The punching drive motor 80 is also fixedly mounted via the motor mounting plate 90. The output shaft of the punching drive motor 80 is connected to the stamping mechanism 220 via another coupling. The punching drive motor 80 drives the stamping mechanism 220 to reciprocate, driving the punch 230 to complete the punching action. The coupling 100 uses a flexible coupling or a diaphragm coupling, which has a certain buffering and compensation capacity, absorbing installation errors between the motor and the screw, and ensuring smooth transmission.

[0032] The transmission motion conversion module includes a synchronous shaft 110, a ball screw 120, a screw nut 130, a linear guide rail 140, a linear bearing 150, a clamping slider 160, and a synchronous gear set 170. The synchronous shaft 110 is made of steel and is arranged laterally along the equipment. Both ends of the synchronous shaft 110 are supported by bearing seats. The synchronous shaft 110 connects multiple clamping units to achieve synchronous drive of four clamping mechanisms, ensuring consistent clamping actions in four directions. The ball screw 120 works in conjunction with the screw nut 130. The ball screw 120 is mounted on the guide rail mounting seat 30 with bearing support. One end of the ball screw 120 is connected to the coupling 100, and the other end is connected to the synchronous gear set 170. The screw nut 130 is fixedly installed inside the clamping slider 160. When the ball screw 120 rotates, the screw nut 130 drives the clamping slider 160 to move linearly along the axis of the ball screw 120. Linear guide rails 140 are fixedly mounted on guide rail mounting base 30. Two linear guide rails 140 are arranged on either side of the ball screw 120. The surfaces of the linear guide rails 140 are precision-machined, achieving extremely high precision and smoothness. Linear bearings 150 are installed inside the slider of the linear guide rail 140 and are connected to clamping sliders 160. The linear bearings 150 slide along the linear guide rail 140, guiding the clamping sliders 160 to move smoothly along a predetermined trajectory, ensuring motion accuracy. Multiple clamping sliders 160 are present, each corresponding to a clamping unit. The bottom of each clamping slider 160 is connected to the linear bearing 150, and a floating chuck 180 and a clamping block 190 are fixedly mounted on its top. The synchronous gear set 170 includes a driving gear and a driven gear. The driving gear is installed at one end of the ball screw 120, and the driven gear is installed at one end of the synchronous shaft 110. The synchronous gear set 170 ensures that the synchronous shaft 110 and the ball screw 120 rotate synchronously, so that the actions of each clamping unit maintain a strict synchronous relationship.

[0033] The execution module includes a floating chuck 180, a clamping block 190, a positioning probe 200, a photoelectric sensor 210, a stamping mechanism 220, a punch 230, and a stamping die 240. The floating chuck 180 uses a butterfly spring assembly 181 to achieve adaptive clamping. The butterfly spring assembly 181 consists of multiple stacked butterfly springs, enabling self-positioning in three directions: perpendicular to the sheet metal surface and in two directions parallel to the sheet metal surface, thus adapting to aluminum alloy templates of different thicknesses. The clamping force of the floating chuck 180 can be adjusted by adjusting the preload of the butterfly spring assembly 181. When the thickness of the aluminum alloy template changes, the butterfly spring assembly 181 automatically adjusts the clamping force, ensuring sufficient clamping force to prevent sheet metal displacement while avoiding deformation or damage due to excessive clamping force. The clamping block 190 is wrapped with polyurethane coating 191. The hardness of the polyurethane coating 191 has been optimized to ensure clamping stability while avoiding indentation or damage to the surface of the aluminum alloy plate. The clamping block 190 is fixedly installed at the bottom of the floating chuck 180 and contacts the surface of the aluminum alloy template to transmit clamping force.

[0034] Multiple positioning probes 200 are provided. Made of stainless steel, these probes offer excellent corrosion resistance and high structural strength. Their extension length can be adjusted via a threaded adjustment mechanism to accommodate different aluminum alloy template sizes. Mounted on the clamping slider 160, the positioning probes 200 contact the edge or a specific location of the aluminum alloy template after clamping, providing coarse positioning for subsequent precise positioning. Photoelectric sensors 210 are positioned at the four corners and center of the aluminum alloy template, forming a frame-type sensor array to monitor the entire range of the sheet material. These diffuse reflection sensors, with a suitable detection distance, accurately detect changes in the sheet material's position. When the aluminum alloy template shifts, the photoelectric sensors 210 detect the position change signal and transmit it to the control system. The control system adjusts the position of the clamping slider 160 based on the shift, achieving closed-loop control and ensuring the sheet material remains stable throughout the punching process. The stamping mechanism 220 adopts a crank-slider mechanism 221. The crank radius of the crank-slider mechanism 221 can be adjusted by an adjustment mechanism, allowing the stroke size to be changed according to processing requirements and adapting to different punching needs. The stamping mechanism 220 is fixedly installed at the bottom of the upper crossbeam 50. The punching drive motor 80 drives the crank-slider mechanism 221 to move, causing the punch 230 to reciprocate in the vertical direction. The punch 230 is made of high-speed steel, which has good wear resistance and heat resistance. The punch 230 is connected to the slider of the crank-slider mechanism through a connector. The punch 230 is replaceable and can be easily replaced when the punch 230 is worn or when different hole sizes need to be processed. The stamping die 240 is fixedly installed on the workbench panel 20. The cutting edge of the stamping die 240 is made of alloy tool steel and is hardened, which has good wear resistance and service life. The cavity of the stamping die 240 matches the shape of the punch 230. When the punch 230 moves downward, it passes through the aluminum alloy template material and closes with the stamping die 240 to form a complete hole.

[0035] Optionally, the device of the present invention further includes a guide rail dust cover 250. The guide rail dust cover 250 adopts a folding structure and covers the outside of the linear guide rail 140, protecting the linear guide rail 140 from the intrusion of dust and impurities, extending the service life of the linear guide rail 140, and ensuring motion accuracy. Limit switches 260 are set at both ends of the stroke of the clamping slider 160. When the clamping slider 160 moves to the limit position of the stroke, the limit switch 260 is triggered. After receiving the signal, the control system stops the movement of the main drive motor 70 to prevent overtravel and protect the equipment safety.

[0036] Optionally, the synchronous shaft 110 is made of high-quality steel and undergoes heat treatment, resulting in excellent mechanical properties and dimensional stability. The synchronous shaft 110 connects four clamping units, each corresponding to a clamping slider 160. Both ends of the synchronous shaft 110 are supported by bearings and bearing seats to ensure flexible rotation. The synchronous gear set 170 includes meshing gears. The driving gear rotates synchronously with the ball screw 120, and the driven gear rotates synchronously with the synchronous shaft 110. Gear transmission ensures the smoothness and accuracy of the transmission process.

[0037] Optionally, the detection distance of the photoelectric sensor 210 can be set according to actual needs. The diffuse reflection sensor emits light that shines onto the surface of the aluminum alloy template, and detects the position of the plate based on changes in the reflected light. It has high detection accuracy and fast response speed. After multiple photoelectric sensors 210 form a frame-type sensor array, they can monitor the corner and center positions of the plate in real time. When the offset of any position exceeds the set threshold, the control system reacts immediately, adjusting the clamping force or stopping processing to ensure processing accuracy.

[0038] Optionally, the extension length of the positioning probe 200 can be finely adjusted using an adjusting screw. The adjusting screw is located on the mounting base of the positioning probe 200. Rotating the adjusting screw changes the position of the positioning probe 200 relative to the clamping slider 160, thereby adjusting the extension length to accommodate aluminum alloy templates of different thicknesses and sizes. The positioning probe 200 is made of stainless steel, maintaining good corrosion resistance even in humid processing environments, ensuring long-term reliability.

[0039] Optionally, in the crank-slider mechanism 221 of the stamping mechanism 220, the length of the crank can be adjusted by an adjustment mechanism. The change in crank length directly changes the stroke of the slider, thereby changing the stroke of the punch 230. The adjustable stroke design allows this device to adapt to the punching needs of aluminum alloy templates of different thicknesses, thus broadening its application range. The stamping die 240 is made of alloy tool steel, and the cutting edge is hardened to meet the required hardness, exhibiting good wear resistance and capable of withstanding multiple stamping operations, ensuring processing quality and die life.

[0040] Optionally, the device of the present invention has multiple clamping units on the worktable panel 20, with four clamping units respectively arranged at the four corners of the worktable panel 20. Each clamping unit includes a clamping slider 160, a floating chuck 180, and a clamping pressure block 190. The four clamping units are linked together through a synchronous shaft 110 and a synchronous gear set 170. When the main drive motor 70 drives the ball screw 120 to rotate, the screw nut 130 drives the four clamping sliders 160 to move simultaneously towards the center of the worktable panel 20, realizing four-point clamping of the aluminum alloy template. During the clamping process, the butterfly spring assembly 181 of the floating chuck 180 plays an adaptive role, automatically adjusting the clamping force at each point according to the slight difference in the thickness of the plate, ensuring uniform and reliable clamping.

[0041] Optionally, the device of the present invention further includes a control system, which is electrically connected to the main drive motor 70, the punching drive motor 80, the photoelectric sensor 210, and the limit switch 260. The photoelectric sensor 210 collects the position signal of the aluminum alloy template in real time. After processing the signal, the control system outputs control commands to adjust the speed and direction of the main drive motor 70, thereby achieving precise control of the clamping position. When the offset of the sheet metal exceeds the allowable range, the control system can immediately stop the punching process and adjust the clamping force for correction, forming a closed-loop control to improve processing accuracy and stability.

[0042] The working process of the anti-deviation device for punching holes in aluminum alloy formwork plates of the present invention is as follows:

[0043] First, the aluminum alloy template sheet to be processed is placed on the workbench panel 20. The size and thickness of the aluminum alloy template are determined according to the processing requirements. The main drive motor 70 is started, driving the ball screw 120 to rotate via the coupling 100. The ball screw 120 drives the screw nut 130 to move, which in turn drives the clamping slider 160 to move along the linear guide rail 140 towards the center of the workbench panel 20. The clamping slider 160 drives the floating chuck 180 and the clamping block 190 to move synchronously. The clamping block 190 at the bottom of the floating chuck 180 gradually approaches and presses against the edge of the aluminum alloy template. During clamping, the disc spring assembly 181 automatically adjusts the clamping force according to the actual thickness of the aluminum alloy template, ensuring sufficient clamping force to prevent the sheet from shifting while avoiding deformation due to excessive pressure. The four clamping units move synchronously via the synchronous shaft 110 and the synchronous gear set 170, ensuring uniform clamping force at four points on the aluminum alloy template.

[0044] After clamping, the photoelectric sensor 210 begins operation. The diffuse reflection photoelectric sensor 210 emits light that illuminates the surface of the aluminum alloy template, monitoring the position of the sheet material in real time based on changes in reflected light. The photoelectric sensors 210 are positioned at the four corners and center of the sheet material, forming a complete sensing array capable of detecting any displacement of the sheet material in any direction within the plane. When the photoelectric sensor 210 detects a change in the sheet material's position, it transmits the offset signal to the control system. The control system calculates the compensation amount based on the offset and fine-tunes the clamping slider 160 by adjusting the main drive motor 70, achieving closed-loop control and ensuring the sheet material maintains a precise position throughout the punching process.

[0045] Before the punching process begins, the positioning probe 200 first contacts the positioning reference surface of the aluminum alloy template for coarse positioning, providing a reference for subsequent precise positioning. The extension length of the positioning probe 200 can be adjusted according to the specifications of the aluminum alloy template to adapt to different processing requirements.

[0046] During the punching process, the punching drive motor 80 starts, driving the stamping mechanism 220 via a coupling. The crank-slider mechanism 221 of the stamping mechanism 220 converts the rotary motion into linear reciprocating motion, driving the punch 230 to move vertically. As the punch 230 descends, it passes through the aluminum alloy template material, forming the desired hole shape with the cooperation of the stamping die 240. The crank radius of the stamping mechanism 220 can be adjusted according to processing requirements, changing the stroke of the punch 230 to adapt to different depths and specifications of punching. The punch 230 is made of high-speed steel, offering good wear resistance and allowing for frequent replacement. The cutting edge of the stamping die 240 is hardened, providing excellent wear resistance and service life, ensuring long-term processing quality stability.

[0047] During the punching process, the photoelectric sensor 210 continuously monitors the position of the sheet metal. Once a deviation is detected, it immediately feeds back to the control system for compensation and correction, ensuring that the processing position of each hole is accurate. The limit switch 260 plays a protective role at both ends of the travel of the clamping slider 160, preventing the equipment from operating beyond its travel range.

[0048] After processing, the main drive motor 70 rotates in the reverse direction, driving the clamping slider 160 to reset and releasing the aluminum alloy template. The operator then removes the processed aluminum alloy template from the worktable panel 20, completing the entire processing procedure.

[0049] The anti-deviation device of this invention achieves the following technical effects through the combination of the above technical solutions: The floating chuck 180 uses a butterfly spring assembly 181 to achieve adaptive clamping, which can automatically adjust the clamping force according to the thickness of the aluminum alloy template, effectively avoiding deformation or damage to the plate caused by excessive clamping force, while ensuring sufficient clamping force to prevent plate deviation. The polyurethane-coated clamping block 190 protects the aluminum alloy plate surface during clamping, avoiding indentation. The photoelectric sensor 210 array monitors the plate position in real time, and the clamping system and positioning system are linked in a closed-loop control to ensure that the plate remains stable throughout the punching process, significantly improving processing accuracy. The four-corner independent floating clamping structure design allows the device to adapt to aluminum alloy templates of different thicknesses and specifications, with good versatility, meeting the processing needs of the construction industry for various specifications of aluminum alloy templates. The synchronous shaft 110 and synchronous gear assembly 170 ensure the consistency of the actions of each clamping unit, the guide rail dust cover 250 protects the linear guide rail 140 from contamination, and the limit switch 260 prevents equipment damage. The overall structure design is reasonable and the operation is reliable.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for preventing deviation during punching of aluminum alloy formwork plates for construction, characterized in that: It includes a support and fixing module, a power module, a transmission motion conversion module, and an execution module; The support and fixing module includes a base frame (10), a workbench panel (20), a guide rail mounting seat (30), a column (40), an upper crossbeam (50), and anchor bolts (60). The workbench panel (20) is fixedly installed on the top of the base frame (10). The guide rail mounting seat (30) is fixedly installed on the base frame (10) and located on the outer periphery of the workbench panel (20). The bottom of the column (40) is fixedly connected to the base frame (10). The top of the column (40) supports and fixes the upper crossbeam (50). The upper crossbeam (50) is arranged parallel to the top of the workbench panel (20). The anchor bolts (60) are located at the four bottom corners of the base frame (10) and are used for fixed connection with the ground. The power module includes a main drive motor (70), a punching drive motor (80), a motor mounting plate (90), and a coupling (100); the main drive motor (70) and the punching drive motor (80) are respectively fixedly mounted on the outer side of the base frame (10) through the motor mounting plate (90); the output shaft of the main drive motor (70) is connected to one end of the ball screw (120) through the coupling (100); the output shaft of the punching drive motor (80) is connected to the input shaft of the stamping mechanism (220) through the coupling (100). The transmission motion conversion module includes a synchronous shaft (110), a ball screw (120), a screw nut (130), a linear guide (140), a linear bearing (150), a clamping slider (160), and a synchronous gear set (170). The ball screw (120) is supported by a bearing and mounted on the guide rail mounting base (30) and arranged on the outer periphery of the worktable panel (20). The screw nut (130) is fixedly installed inside the clamping slider (160) and threadedly engaged with the ball screw (120). The linear guide (140) is fixedly installed on the guide rail mounting base (30) and arranged parallel to the ball screw. On both sides of (120), the linear bearing (150) is mounted on the linear guide rail (140) and fixedly connected to the clamping slider (160). The clamping slider (160) is slidably mounted on the linear guide rail (140) through the linear bearing (150). The synchronous shaft (110) is arranged horizontally on the outer periphery of the worktable panel (20) and supported by the bearing seat. The synchronous gear set (170) is set between one end of the ball screw (120) and one end of the synchronous shaft (110) and meshes with each other to drive the synchronous shaft (110) and the ball screw (120) to rotate synchronously. The execution module includes a floating chuck (180), a clamping block (190), a positioning probe (200), a photoelectric sensor (210), a stamping mechanism (220), a punch (230), and a stamping die (240). The floating chuck (180) is fixedly installed on the top of the clamping slider (160) and located above the worktable panel (20). The clamping block (190) is fixedly installed on the bottom of the floating chuck (180) and its lower surface is opposite to the upper surface of the worktable panel (20). The positioning probe (200) is installed on the clamping slider (160) and its tip is... Oriented toward the center of the worktable panel (20), the photoelectric sensor (210) is arranged at the four corners and the midpoint of the plate to be processed above the worktable panel (20). The stamping mechanism (220) is fixedly installed at the bottom center of the upper crossbeam (50) and located directly above the worktable panel (20). The punch (230) is installed at the bottom of the stamping mechanism (220) and reciprocates toward the worktable panel (20) in a vertical direction. The stamping die (240) is fixedly installed on the upper surface of the worktable panel (20) and is set directly opposite to the punch (230). The floating chuck (180) uses a butterfly spring assembly (181) to achieve adaptive clamping, and the clamping block (190) is wrapped with polyurethane coating (191).

2. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: Four clamping sliders (160) are provided, and the four clamping sliders (160) are respectively arranged on the outer sides of the four corners of the worktable panel (20). Each clamping slider (160) has a floating chuck (180) fixedly installed on its top, and each floating chuck (180) has a clamping pressure block (190) fixedly installed on its bottom. The four clamping sliders (160) are linked by the synchronous shaft (110) and the synchronous gear set (170). When the main drive motor (70) drives the ball screw (120) to rotate, the screw nut (130) drives the four clamping sliders (160) to slide simultaneously along the linear guide rail (140) towards the center of the worktable panel (20). Each clamping pressure block (190) is respectively The aluminum alloy template is pressed against the upper surface from four corners to achieve synchronous clamping of the aluminum alloy template at four corners; the butterfly spring group (181) consists of multiple butterfly springs stacked and installed inside the floating chuck (180). The butterfly spring group (181) can float and self-position in both directions perpendicular to the surface of the plate and in two directions parallel to the surface of the plate. The clamping force of the floating chuck (180) is adjusted by adjusting the preload of the butterfly spring group (181); the polyurethane coating (191) covers the entire lower surface of the clamping block (190). The lower surfaces of the polyurethane coating (191) of each clamping block (190) are at the same horizontal height and are pressed against the four corner edges of the upper surface of the aluminum alloy template to achieve uniform clamping of the aluminum alloy template at four points.

3. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: The synchronous shaft (110) runs horizontally through and connects four clamping units. The two ends of the synchronous shaft (110) are rotatably supported on the guide rail mounting base (30) by bearings and bearing seats respectively. The synchronous gear set (170) includes a driving gear and a driven gear that mesh with each other. The driving gear is fixedly installed on one end of the ball screw (120) and rotates synchronously with the ball screw (120). The driven gear is fixedly installed on one end of the synchronous shaft (110) and rotates synchronously with the synchronous shaft (110). The driving gear and the driven gear mesh with each other, so that the actions of each clamping unit maintain a strict synchronous relationship.

4. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: Five photoelectric sensors (210) are provided, four of which are arranged at the four corners of the aluminum alloy template above the workbench panel (20), and one photoelectric sensor (210) is arranged at the center of the aluminum alloy template. The five photoelectric sensors (210) form a frame-type sensor array to monitor the position of the plate throughout the entire range. The photoelectric sensors (210) are diffuse reflection sensors. The detection distance of the photoelectric sensors (210) is set to a range that matches the surface of the aluminum alloy template. When the aluminum alloy template shifts, the photoelectric sensors (210) detect the position change signal and transmit the signal to the control system.

5. The anti-deviation device for punching aluminum alloy formwork plates according to claim 4, characterized in that: It also includes a control system, which is electrically connected to the main drive motor (70), the punching drive motor (80), the photoelectric sensor (210), and the limit switch (260). The photoelectric sensor (210) collects the position signal of the aluminum alloy template in real time and transmits it to the control system. The control system outputs control commands according to the received position signal to adjust the speed and direction of the main drive motor (70) and control the position of the clamping slider (160) to compensate for the offset, forming a closed-loop control. When the offset of the plate is detected to exceed the allowable range, the control system stops the punching process and adjusts the clamping force to correct it.

6. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: Multiple positioning probes (200) are provided, and each positioning probe (200) is respectively installed on each clamping slider (160). The tip of the positioning probe (200) faces the center of the worktable panel (20) and is positioned opposite to the edge of the aluminum alloy template. The positioning probe (200) is made of stainless steel. An adjusting screw is provided on the mounting base of the positioning probe (200). By rotating the adjusting screw, the position of the positioning probe (200) relative to the clamping slider (160) can be adjusted to achieve adjustable extension length to adapt to aluminum alloy templates of different specifications.

7. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: The stamping mechanism (220) adopts a crank-slider mechanism (221), which is fixedly installed at the bottom center of the upper crossbeam (50). The crank of the crank-slider mechanism (221) is provided with a crank radius adjustment mechanism. The crank length is changed by the crank radius adjustment mechanism to adjust the stroke of the punch (230). The slider of the crank-slider mechanism (221) is fixedly connected to the punch (230) through a joint. The punching drive motor (80) drives the crank-slider mechanism (221) to move, causing the punch (230) to move along the vertical direction. The punch (230) moves in a reciprocating linear motion toward the stamping die (240) in a straight direction; the punch (230) is made of high-speed steel and is detachably fixed to the slider of the stamping mechanism (220) through a connector; the punch (230) is replaceable; the stamping die (240) is made of alloy tool steel and the cutting edge of the stamping die (240) is hardened; the cavity of the stamping die (240) matches the shape of the punch (230); when the punch (230) moves downward, it passes through the aluminum alloy template and closes with the stamping die (240) to form a hole.

8. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: The linear guide rails (140) are two in number, and the two linear guide rails (140) are arranged in parallel on the left and right sides of the ball screw (120) and fixedly installed on the guide rail mounting base (30). The linear bearings (150) are four in number, and each linear bearing (150) is installed on the corresponding linear guide rail (140) and fixedly connected to the bottom of the corresponding clamping slider (160). Each clamping slider (160) slides along the linear guide rail (140) through the linear bearing (150). The ball screw (120) and the screw nut (130) cooperate to convert the rotational motion into linear motion, driving the clamping slider (160) to reciprocate along the linear guide rail (140).

9. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: It also includes a guide rail dust cover (250) and a limit switch (260); the guide rail dust cover (250) adopts a folding structure, covering and installing on the outside of the linear guide rail (140), and the two ends of the guide rail dust cover (250) are fixedly connected to the ends of the clamping slider (160) and the guide rail mounting base (30) respectively, and extend and retract as the clamping slider (160) moves, protecting the linear guide rail (140) from the intrusion of dust and impurities; the limit switch (260) is set at both ends of the travel of the clamping slider (160) along the linear guide rail (140). The limit switch (260) is fixedly installed on the guide rail mounting base (30) or the base frame (10) and is set corresponding to the travel limit position of the clamping slider (160). When the clamping slider (160) moves to the travel limit position, the limit switch (260) triggers and stops the movement of the main drive motor (70) to prevent overtravel.

10. The anti-deviation device for punching aluminum alloy formwork plates according to claim 1, characterized in that: The base frame (10) adopts a steel plate welded structure. The four corners of the base frame (10) are provided with reinforcing ribs (11). The base frame (10) is fixedly connected to the ground by four anchor bolts (60). The four anchor bolts (60) are respectively arranged at the four corners of the base frame (10) to bear the weight of the overall equipment and the reaction force generated during punching. The workbench panel (20) is made of heat-treated steel. The workbench panel (20) is fixedly connected to the base frame (10) by bolt connection. The upper surface of the workbench panel (20) is a smooth and flat surface after grinding, which serves as the bearing base surface of the aluminum alloy template plate. There are multiple columns (40). The bottom of each column (40) is fixedly connected to the base frame (10), and the top of each column (40) is fixedly connected to the upper crossbeam (50). The upper crossbeam (50) adopts a box structure and is used to install the stamping mechanism (220) and bear the force during the stamping process.

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