CZ profile steel anti-deformation straightening numerical control machining equipment

Abstract

The invention relates to the technical field of metal profile machining, and particularly discloses CZ profile steel anti-deformation straightening numerical control machining equipment which comprises a base. A supporting table is fixedly connected to the top face of the base. Supporting plates fixedly connected to the top face of the base are vertically arranged outside the two ends of the supporting table. Cylinders are horizontally arranged on the side walls, close to each other, of the two supporting plates; a clamping jaw cylinder is coaxially arranged at the output top end of the cylinder; the top face of the base is provided with a straightening mechanism capable of conducting segmented straightening on a workpiece. The clamping jaw air cylinder is used for clamping the workpiece so that the workpiece can be kept stable, then the workpiece is automatically segmented and straightened through the straightening mechanism, the trouble of manually straightening the workpiece is reduced, the labor intensity of workers is reduced, and the straightening machining quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of metal profile processing technology, and in particular to a CNC machining equipment for anti-deformation straightening of CZ-shaped steel. Background Technology

[0002] CZ-shaped steel is a thin-walled steel structure manufactured through a cold bending process. It is continuously fed during processing and then cut according to requirements. Its cross-section is C-shaped and Z-shaped, and it has an open channel structure. CZ-shaped steel is increasingly widely used in the construction and engineering fields. However, due to its complex cross-sectional shape, it is prone to bending, twisting and other deformation problems during processing. Therefore, CZ-shaped steel needs to be straightened when used.

[0003] In the current technology, the straightening of steel profiles mainly relies on manual operation for pressure straightening. The manual straightening method is not only inefficient, but also has the drawbacks of insufficient straightening accuracy, low degree of automation, inability to handle multi-directional deformation at the same time, and easy to cause material damage. Summary of the Invention

[0004] This application provides a CNC machining equipment for anti-deformation straightening of CZ-shaped steel, which adopts a segmented straightening mechanism to divide the long steel into several segments for separate straightening, reducing the trouble of manual straightening and improving processing efficiency.

[0005] This application provides a CNC machining equipment for anti-deformation straightening of CZ-shaped steel, which adopts the following technical solution: A CNC machining equipment for anti-deformation straightening of CZ-shaped steel includes a base; a support platform is fixedly connected to the top surface of the base; support plates are vertically installed on the outer sides of both ends of the support platform and fixed to the top surface of the base; cylinders are horizontally installed on the side walls of the two support plates that are close to each other; a gripper cylinder is coaxially installed at the output top of the cylinder; and a straightening mechanism is provided on the top surface of the base for segmented straightening of the workpiece.

[0006] By adopting the above technical solution, the workpiece is placed flat on the top surface of the support platform. The cylinders on the support plates at both ends of the support platform are activated so that the gripper cylinders move closer to the end of the workpiece. The gripper cylinders clamp the workpiece to keep it stable. Then, the straightening mechanism automatically straightens the workpiece in sections, reducing the trouble of manually straightening the workpiece, reducing the intensity of manual labor, and ensuring the quality of straightening processing.

[0007] Preferably, the straightening mechanism includes a frame, a side-pressure module, and a torsion module; the frame is slidably mounted on the top surface of the base, and a first hydraulic push rod is vertically mounted at the bottom end of the top wall of the frame, located at the top of the support platform; a pressure block is fixedly connected to the output end of the first hydraulic push rod; the side-pressure module is mounted on two mutually spaced inner walls of the frame, which can compress and straighten the side walls of the workpiece; the torsion module is mounted on two support plates, which can torsion straighten the workpiece.

[0008] By adopting the above technical solution, when straightening the workpiece, the first hydraulic push rod can drive the pressure block to move down to squeeze and straighten the web of the steel section, and specifically correct the vertical bending deformation of the steel section. The side pressure module can squeeze and straighten the flange of the steel section, and specifically correct the horizontal bending deformation of the steel section. The torsion module can apply torsional load to the steel section, and specifically correct the torsional deformation of the steel section.

[0009] Preferably, the side pressure module assembly includes a pair of second hydraulic push rods; the pair of second hydraulic push rods are respectively horizontally fixed to two mutually distant inner walls of the frame, the two second hydraulic push rods are arranged opposite to each other, and each second hydraulic push rod output end is fixed to a side pressure plate.

[0010] By adopting the above technical solution, when straightening the steel flange, the second hydraulic push rod is activated to drive the side pressure plate to move toward the workpiece, and apply lateral extrusion force to the workpiece flange in order to correct the horizontal bending deformation of the workpiece.

[0011] Preferably, the torsion module includes a pair of torsion motors and a pair of lifting components; the pair of torsion motors are coaxially fixed to the output ends of two cylinders respectively; the pair of gripper cylinders are coaxially fixed to the output ends of the two torsion motors respectively; the pair of lifting components are respectively disposed on the side walls of the two support plates, and the two lifting components can drive the two cylinders to move in the vertical direction respectively.

[0012] By adopting the above technical solution, when correcting the torsional deformation of the workpiece, the lifting component drives the workpiece to move upward and away from the support platform. Then, the torsion motor is started to drive the gripper cylinder to rotate, so as to apply a torque load to the workpiece and realize the correction of the torsional deformation of the workpiece.

[0013] Preferably, the lifting assembly includes a first motor; the first motor is mounted on the bottom side wall of the support plate near the cylinder, and a first lead screw in the vertical direction is coaxially fixed to the output end of the first motor; a sliding plate that is threadedly engaged with the first lead screw is sleeved on the outside of the first lead screw; the sliding plate is slidably engaged with the outer wall of the support plate; and the cylinder is horizontally fixed to the outer wall of the sliding plate.

[0014] By adopting the above technical solution, starting the first motor can drive the first lead screw to rotate, causing the slide to move along the axis of the first lead screw, thereby driving the workpiece to move in the vertical direction, so that the workpiece can be separated from the support table for torsion straightening processing.

[0015] Preferably, a limiting groove is vertically formed on the side wall of the support plate near the slide plate; a limiting block is fixedly connected to the side wall of the slide plate near the support plate and is engaged in the limiting groove; the limiting block slides in cooperation with the inner wall of the limiting groove.

[0016] By adopting the above technical solution, during the process of the skateboard moving along the first lead screw axis, the limiting block will slide along the inner wall of the limiting groove. The movement of the skateboard is guided by the cooperation between the limiting block and the inner wall of the limiting groove, thus ensuring the stability of the skateboard movement.

[0017] Preferably, a pair of electromagnetic rails are horizontally fixed to the top surface of the base, located on the outer sides of the support platform respectively; the electromagnetic rails are arranged along the length of the support platform, and electromagnetic sliders are slidably installed on the top surface of the electromagnetic rails; the bottom ends of the two side walls of the frame are respectively fixed to the top surfaces of the two electromagnetic sliders.

[0018] By adopting the above technical solution, starting the electromagnetic guide rail can make the electromagnetic slider slide, so that the frame can move along the length of the workpiece and adjust the position of the frame so that the workpiece can be straightened in sections along the length of the workpiece.

[0019] Preferably, the top surface of the frame is provided with a through groove arranged along the width direction of the support platform; a second motor is horizontally installed on the top side wall of the frame; a second lead screw extending into the through groove is coaxially fixed to the output end of the second motor; a rectangular block is sleeved on the outside of the second lead screw and engages with the threaded transmission of the second lead screw; the rectangular block is slidably engaged with the inner wall of the through groove; and the first hydraulic push rod is vertically installed on the bottom surface of the rectangular block.

[0020] By adopting the above technical solution, starting the second motor can drive the rectangular block to move along the axis of the second lead screw, causing the first hydraulic push rod to drive the pressure block to adjust its position along the width direction of the workpiece, so as to accurately apply vertical pressure to the web of the steel section for straightening.

[0021] Preferably, a laser scanner is mounted on the bottom surface of the rectangular block via a connecting plate; a control system is provided on the base; each of the torsion motor output ends is coaxially provided with a torque sensor electrically connected to the control system; the two gripper cylinders are respectively fixedly connected to the two torque sensors; the input end of the control system is electrically connected to both the laser scanner and the torque sensors, and the output end of the control system is electrically connected to the first hydraulic push rod, the second hydraulic push rod, the torsion motor, the first motor, the second motor, and the electromagnetic guide rail.

[0022] By adopting the above technical solution, the laser scanner is used to perform three-dimensional scanning of the full dimensions of the steel profile, accurately capturing the specific parameters of composite deformations such as bending and twisting. The control system analyzes and processes the deformation data, and calculates the vertical pressure value of the first hydraulic push rod, the lateral pressure value of the second hydraulic push rod, and the torsional load of the torsion motor, etc., in combination with the steel profile specifications. The system plans the action sequence of the first hydraulic push rod, the second hydraulic push rod, and the torsion motor, while the torque sensor is used to synchronously feed back the torsional torque data, forming a closed-loop control throughout the entire process to ensure the straightening accuracy and stability.

[0023] Preferably, a pair of straight plates are vertically fixed to the top surface of the base, located on the outer sides of the support platform in the width direction; multiple electric actuators are provided on the side walls of the two straight plates, facing one side of the support platform; and vertically arranged correction rollers are fixed to the output ends of the electric actuators.

[0024] By adopting the above technical solution, after the workpiece is placed on the support platform, the electric push rods on the straight plates on both sides of the support platform are activated, causing the correction rollers to move toward the workpiece and contact it. The position of the workpiece is corrected by the coordinated work of multiple correction rollers on both sides of the workpiece, so as to avoid the workpiece being tilted and affecting the subsequent straightening work.

[0025] In summary, this application has the following beneficial effects: 1. Place the workpiece flat on the top surface of the support table, use the gripper cylinder to clamp the workpiece to keep it stable, and then use the straightening mechanism to automatically straighten the workpiece in sections, reducing the trouble of manually straightening the workpiece, reducing the intensity of manual labor, and ensuring the quality of straightening processing. 2. The laser scanner is used to perform three-dimensional scanning of the full dimensions of the steel profile, accurately capturing the specific parameters of composite deformations such as bending and twisting. The control system analyzes and processes the deformation data, and plans the action sequence of the first hydraulic push rod, the second hydraulic push rod, and the torsion motor in combination with the steel profile specifications. The torque sensor is used to synchronously feed back the torsional torque data, forming a closed-loop control throughout the entire process to ensure the straightening accuracy and stability. 3. After placing the workpiece on the support platform, activate the electric actuators on the straight plates on both sides of the support platform to move the correction rollers toward the workpiece and make contact with it. The workpiece position is corrected by the coordinated work of multiple correction rollers on both sides of the workpiece, so as to avoid the workpiece being tilted and affecting the subsequent straightening work. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of a CNC machining equipment for anti-deformation straightening of CZ-shaped steel. Figure 2 This is a schematic diagram of the mating structure of the base, support platform and a pair of straight plates in this application; Figure 3 This is a schematic diagram of the cooperation structure between the frame and a pair of electromagnetic slide rails in this application; Figure 4 This is a schematic diagram of the cooperation structure between the support plate and the torsion module in this application; Figure 5 This is a schematic diagram of the mating structure of the slide plate and the cylinder in this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Base; 11. Straight plate; 12. Electric push rod; 121. Correcting roller; 2. Support platform; 3. Support plate; 31. Cylinder; 32. Grip cylinder; 33. Limiting groove; 4. Straightening mechanism; 41. Frame; 411. First hydraulic push rod; 412. Pressure block; 413. Through groove; 414. Second motor; 415. Second lead screw; 416. Rectangular block; 42. Side pressure module; 421. Second hydraulic push rod; 422. Side pressure plate; 43. Torsion module; 431. Torsion motor; 44. Lifting assembly; 441. First motor; 442. First lead screw; 443. Slide plate; 444. Limiting block; 5. Electromagnetic guide rail; 51. Electromagnetic slider; 6. Laser scanner; 7. Control system; 8. Torque sensor. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] This invention discloses a CNC machining equipment for anti-deformation straightening of CZ-shaped steel, such as... Figure 1 and Figure 2 As shown, the system includes a base 1, a support platform 2, and a pair of support plates 3. The support platform 2 is fixed to the top surface of the middle part of the base 1 and can be used to place workpieces. The pair of support plates 3 are vertically fixed to the top surface of the base 1 at both ends of the support platform 2 along its length. A cylinder 31 is horizontally installed on the side wall of the support plate 3 near the support platform 2. The output end of the cylinder 31 is provided with a gripper cylinder 32 that can clamp the end of the workpiece. Both sides of the support platform 2 along its width are provided with straight plates 11 that are vertically fixed to the top surface of the base 1. Each straight plate 11 has multiple electric push rods 12 arranged horizontally toward one side of the support platform 2 on its side wall. Each electric push rod 12 has a vertically arranged correction roller 121 fixed to its output end.

[0030] When straightening the workpiece, place the workpiece flat on the top surface of the support platform 2, activate the electric push rods 12 on both sides of the support platform 2 to move the correction rollers 121 toward the workpiece, and correct the position of the workpiece by the coordinated work of multiple correction rollers 121 on both sides of the workpiece. Activate the cylinders 31 on the two support plates 3 to move the gripper cylinders 32 toward the end of the workpiece and clamp the workpiece, so that the workpiece is kept stable on the support platform 2 for subsequent steel section straightening.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, a straightening mechanism 4 for segmented straightening of workpieces is provided on the top surface of the base 1. The straightening mechanism 4 includes a frame 41, a second motor 414, and a first hydraulic push rod 411. The frame 41 is set on the top surface of the base 1 and is in an inverted concave shape. A through groove 413 arranged along the width direction of the support platform 2 is opened on the top surface of the frame 41. The second motor 414 is horizontally installed on the top side wall of the frame 41. A second lead screw 415 extending into the through groove 413 is coaxially fixed to the output end of the second motor 414. A rectangular block 416 that is threadedly engaged with the second lead screw 415 is sleeved on the outside of the second lead screw 415. The rectangular block 416 slides with the inner wall of the through groove 413. The first hydraulic push rod 411 is vertically fixed to the bottom surface of the rectangular block 416. A pressure block 412 is fixed to the output end of the first hydraulic push rod 411.

[0032] When straightening the web of the workpiece, the first hydraulic push rod 411 is activated to drive the pressure block 412 to move downward, and the web of the steel section is squeezed and straightened. The vertical bending deformation of the steel section is specifically corrected. The second motor 414 can drive the rectangular block 416 to move axially along the second lead screw 415, so that the first hydraulic push rod 411 drives the pressure block 412 to adjust its position along the width direction of the workpiece, so that vertical pressure can be applied to different parts of the web of the steel section for straightening.

[0033] like Figure 1 and Figure 3 As shown, the straightening mechanism 4 includes a side pressure module 42 for straightening the side wall of the workpiece by pressing. The side pressure module 42 is disposed on two mutually spaced inner walls of the frame 41. The side pressure module 42 includes a pair of second hydraulic push rods 421. The pair of second hydraulic push rods 421 are respectively horizontally fixed to the two mutually spaced inner walls of the frame 41. The two second hydraulic push rods 421 are arranged opposite to each other. The output end of each second hydraulic push rod 421 is fixedly connected to a side pressure plate 422.

[0034] When straightening the steel flange, the second hydraulic push rod 421 is activated to move the side pressure plate 422 toward the workpiece, applying lateral extrusion force to the workpiece flange in order to correct the horizontal bending deformation of the workpiece.

[0035] like Figure 1 and Figure 4 As shown, the straightening mechanism 4 includes a torsion module 43 for torsion straightening of the workpiece. The torsion module 43 is mounted on two support plates 3. The torsion module 43 includes a pair of torsion motors 431 and a pair of lifting components 44. The pair of torsion motors 431 are coaxially fixed to the output ends of two cylinders 31, and the two gripper cylinders 32 are coaxially fixed to the output ends of the two torsion motors 431. The pair of lifting components 44 are mounted on the side walls of the two support plates 3 and are used to drive the two cylinders 31 to move in the vertical direction. The lifting assembly 44 includes a first motor 441, which is vertically mounted on the bottom side wall of the support plate 3 near the cylinder 31. The output end of the first motor 441 is coaxially fixed to a first lead screw 442. A sliding plate 443 is sleeved on the outside of the first lead screw 442 and threadedly engaged with the first lead screw 442. The sliding plate 443 is slidably engaged with the outer wall of the support plate 3. The cylinder 31 is horizontally fixed to the side wall of the sliding plate 443.

[0036] When correcting the tortuous deformation of the workpiece, the first motor 441 is started to drive the first lead screw 442 to rotate, causing the workpiece to detach from the top surface of the support table 2. Then, the torsion motor 431 drives the gripper cylinder 32 to rotate, applying a torque load to the workpiece in order to achieve the correction of the tortuous deformation of the workpiece.

[0037] like Figure 4 and Figure 5 As shown, a vertical limiting groove 33 is provided on the side wall of the support plate 3 near the slide plate 443. The horizontal cross section of the limiting groove 33 is dovetail-shaped. A limiting block 444 is fixedly connected to the side wall of the slide plate 443 near the support plate 3 and is locked in the limiting groove 33. The limiting block 444 is dovetail-shaped and slides with the inner wall of the limiting groove 33.

[0038] When the skateboard 443 moves vertically, the limiting block 444 slides along the inner wall of the limiting groove 33. Through the sliding cooperation between the limiting block 444 and the inner wall of the limiting groove 33, the movement of the skateboard 443 is guided and limited, ensuring the stability of the movement of the skateboard 443.

[0039] like Figure 1 and Figure 3 As shown, a pair of electromagnetic rails 5 are horizontally fixed to the top surface of the base 1, located on the outer sides of the support platform 2 in the width direction. The electromagnetic rails 5 are located along the length direction of the support platform 2. Electromagnetic sliders 51 are slidably installed on the top surface of the electromagnetic rails 5. The bottom ends of the two side walls of the frame 41 are fixed to the top surfaces of the two electromagnetic sliders 51 respectively.

[0040] Activating the electromagnetic guide rail 5 allows the electromagnetic slider 51 to slide, enabling the frame 41 to move along the length of the workpiece. Adjusting the position of the frame 41 allows for segmented straightening of the workpiece along its length.

[0041] like Figure 1 , Figure 3 and Figure 4As shown, a laser scanner 6 is mounted on the bottom surface of the rectangular block 416 via a connecting plate; a control system 7 is installed on the base 1; a torque sensor 8, which is electrically connected to the control system 7, is coaxially mounted on the output end of each torsion motor 431; two gripper cylinders 32 are coaxially fixed to the two torque sensors 8 respectively; the input end of the control system 7 is electrically connected to both the laser scanner 6 and the torque sensors 8, and the output end of the control system 7 is electrically connected to and controls the operation of the first hydraulic push rod 411, the second hydraulic push rod 421, the torsion motor 431, the first motor 441, the second motor 414, and the electromagnetic guide rail 5.

[0042] Laser scanner 6 is used to perform three-dimensional scanning of the full dimensions of the steel profile, capture deformation data and transmit the data to control system 7. Control system 7 analyzes and processes the deformation data, and plans the action sequence of the first hydraulic push rod 411, the second hydraulic push rod 421 and the torsion motor 431 in combination with the steel profile specifications. Torque sensor 8 is used to synchronously feed back torsional torque data to form a closed-loop control throughout the entire process, ensuring straightening accuracy and stability.

[0043] Working principle: When straightening a workpiece, the workpiece is placed flat on the top surface of the support table 2. The electric actuators 12 on both sides of the support table 2 are activated, causing the straightening rollers 121 to move towards the workpiece. The position of the workpiece is corrected through the coordinated operation of multiple straightening rollers 121 on both sides of the workpiece. Then, the cylinders 31 on the two support plates 3 are activated, causing the gripper cylinders 32 to move towards the end of the workpiece and clamp the workpiece, keeping the workpiece stable on the support table 2. The electromagnetic guide rail 5 is activated to make the electromagnetic slider 51 slide. During the sliding process, the electromagnetic slider 51 drives the frame 41 to move along the length of the workpiece. During the movement of the frame 41, laser scanning is used to perform a three-dimensional scan of the full size of the steel section, accurately capturing the specific parameters of composite deformation such as bending and twisting. The control system 7 analyzes and processes the deformation data, and calculates the vertical pressure value of the first hydraulic push rod 411, the lateral pressure value of the second hydraulic push rod 421, and the torsional load of the torsion motor 431, etc., in combination with the steel section specification parameters. When straightening the workpiece, the first hydraulic push rod 411 drives the pressure block 412 to move down and squeeze the web of the steel section to straighten it, specifically correcting the vertical bending deformation of the steel section. The second hydraulic push rod 421 drives the side pressure plate 422 to move towards the workpiece, applying lateral extrusion particles to the workpiece flange to correct the horizontal bending deformation of the workpiece. When correcting the torsional deformation of the workpiece, the first motor 441 is started to drive the first lead screw 442 to rotate, causing the workpiece to detach from the top surface of the support table 2. Then, the torsion motor 431 drives the gripper cylinder 32 to rotate, applying a torque load to the workpiece to achieve the correction of the torsional deformation of the workpiece. The torque sensor 8 is used to synchronously feed back the torsional torque data, forming a closed-loop control throughout the process to ensure the straightening accuracy and stability.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A CNC machining equipment for anti-deformation straightening of CZ-shaped steel, characterized in that: Includes a base (1); a support platform (2) is fixedly connected to the top surface of the base (1); support plates (3) are vertically installed on both ends of the support platform (2) and fixed to the top surface of the base (1); cylinders (31) are horizontally installed on the side walls of the two support plates (3) that are close to each other; a gripper cylinder (32) is coaxially installed at the output top of the cylinder (31); and a straightening mechanism (4) is installed on the top surface of the base (1) to straighten the workpiece in sections.

2. The CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 1, characterized in that: The straightening mechanism (4) includes a frame (41), a side pressure module (42), and a torsion module (43); the frame (41) is slidably mounted on the top surface of the base (1), and a first hydraulic push rod (411) is vertically mounted at the bottom of the top wall of the frame (41) and located at the top of the support platform (2); a pressure block (412) is fixedly connected to the output end of the first hydraulic push rod (411); the side pressure module (42) is mounted on two inner walls of the frame (41) that are far apart from each other, and can squeeze and straighten the side wall of the workpiece; the torsion module (43) is mounted on two support plates (3), and can torsion straighten the workpiece.

3. The CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 2, characterized in that: The side pressure module (42) includes a pair of second hydraulic push rods (421); the pair of second hydraulic push rods (421) are respectively horizontally fixed on two inner walls of the frame (41) that are far apart from each other, the two second hydraulic push rods (421) are arranged opposite to each other, and each output end of the second hydraulic push rod (421) is fixed with a side pressure plate (422).

4. The CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 3, characterized in that: The torsion module (43) includes a pair of torsion motors (431) and a pair of lifting components (44); the pair of torsion motors (431) are coaxially fixed to the output ends of two cylinders (31); the pair of gripper cylinders (32) are coaxially fixed to the output ends of the two torsion motors (431); the pair of lifting components (44) are respectively set on the side walls of the two support plates (3), and the two lifting components (44) can drive the two cylinders (31) to move in the vertical direction respectively.

5. A CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 4, characterized in that: The lifting assembly (44) includes a first motor (441); the first motor (441) is mounted on the bottom side wall of the support plate (3) near the cylinder (31), and a first lead screw (442) in the vertical direction is coaxially fixed to the output end of the first motor (441); a sliding plate (443) is sleeved on the outside of the first lead screw (442) and threadedly engaged with the first lead screw (442); the sliding plate (443) is slidably engaged with the outer wall of the support plate (3); and the cylinder (31) is horizontally fixed to the outer wall of the sliding plate (443).

6. The CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 5, characterized in that: The support plate (3) has a vertically formed limiting groove (33) on the side wall near the slide plate (443); a limiting block (444) is fixedly connected to the side wall of the slide plate (443) near the support plate (3) and is locked in the limiting groove (33); the limiting block (444) slides in cooperation with the inner wall of the limiting groove (33).

7. A CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 5, characterized in that: The top surface of the base (1) is horizontally fixed with a pair of electromagnetic rails (5) located on the outside of the two sides of the support platform (2); the electromagnetic rails (5) are arranged along the length of the support platform (2), and electromagnetic sliders (51) are slidably installed on the top surface of the electromagnetic rails (5); the bottom ends of the two side walls of the frame (41) are respectively fixed to the top surface of the two electromagnetic sliders (51).

8. A CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 7, characterized in that: The top surface of the frame (41) is provided with a through groove (413) arranged along the width direction of the support platform (2); a second motor (414) is horizontally installed on the top side wall of the frame (41); the output end of the second motor (414) is coaxially fixed with a second lead screw (415) extending into the through groove (413); a rectangular block (416) is sleeved on the outside of the second lead screw (415) and threadedly engaged with the second lead screw (415); the rectangular block (416) slides with the inner wall of the through groove (413); the first hydraulic push rod (411) is vertically installed on the bottom surface of the rectangular block (416).

9. A CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 8, characterized in that: A laser scanner (6) is mounted on the bottom surface of the rectangular block (416) via a connecting plate; a control system (7) is provided on the base (1); a torque sensor (8) electrically connected to the control system (7) is coaxially provided at the output end of each torsion motor (431); the two gripper cylinders (32) are respectively fixed to the two torque sensors (8); the input end of the control system (7) is electrically connected to both the laser scanner (6) and the torque sensor (8), and the output end of the control system (7) is electrically connected to the first hydraulic push rod (411), the second hydraulic push rod (421), the torsion motor (431), the first motor (441), the second motor (414), and the electromagnetic guide rail (5).

10. A CNC machining equipment for anti-deformation straightening of CZ-shaped steel according to claim 1, characterized in that: The base (1) has a pair of straight plates (11) vertically fixed to its top surface, which are located on the outside of the two sides of the support platform (2) in the width direction. Both straight plates (11) have multiple electric push rods (12) horizontally facing one side of the support platform (2). The output end of the electric push rod (12) is fixed with a vertically arranged correction roller (121).

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