A straightening device for steel structural member production

Abstract

The utility model discloses a kind of straightening devices of steel structural member production, including hollow frame, the bottom four corners of hollow frame are uniformly connected with supporting leg, the bottom of four supporting legs is uniformly connected with antiskid pad, the top front side of hollow frame is fixedly connected with controller, the inside of hollow frame is provided with pressure self-adapting clamping assembly, the top of hollow frame is provided with multi-surface straightening assembly, the upper surface of hollow frame is provided with straightening moving assembly, the utility model relates to steel structural member production equipment technical field;The straightening device of steel structural member production, by the pressure self-adapting clamping assembly of being set, can monitor clamping force in real time and automatically adjust, improve the adaptability and versatility of equipment in production;Multi-surface straightening assembly and straightening moving assembly cooperation, the multiple surfaces (such as upper and lower surfaces, front and rear surfaces) of steel structural member can be straightened simultaneously, to realize all-around accurate straightening.

Description

Technical Field

[0001] This utility model relates to the technical field of steel structure component production equipment, specifically a straightening device for steel structure component production. Background Technology

[0002] In the steel structure manufacturing industry, straightening devices play a crucial role in ensuring product compliance with quality standards. Existing technologies include various equipment and methods for straightening steel structures. For example, some straightening devices use a base and supports, employing a pressing mechanism to apply pressure to the steel structure for straightening, while simultaneously using guide frames and internal rollers to facilitate movement of the steel structure to the designated straightening position. Other devices utilize chain drive systems, stepper motors, or other mechanisms to drive related components, performing three-dimensional straightening of steel structure columns and beams from multiple directions. Additionally, there are devices that combine electric push rods and pressure plates to straighten steel structure columns and beams.

[0003] Chinese patent document CN222842866U discloses an adjustable and controllable steel structure straightening device, which includes a straightening platform and support plates fixedly installed on the two sides of the top of the straightening platform. A steel structure column beam is placed on the top of the straightening platform and between the two support plates. A straightening frame is set on the top of the straightening platform and between the two support plates. A straightening component for comprehensively straightening the steel structure column beam is set on the inner side wall of the straightening frame.

[0004] The adjustable and controllable steel structure straightening device in the related technology also has the following defects: the fixed clamping force cannot match the bearing capacity of different workpieces. Excessive force may cause the workpiece surface to sink or the edges to crack, or insufficient force may cause the workpiece to slip, resulting in additional deformation during straightening and increasing rework or scrap costs. In addition, it can only straighten the upper and lower sides or a single direction of the workpiece, and cannot handle multi-directional deformation at the same time. It is necessary to flip and adjust the position of the workpiece multiple times to repeat the straightening, which is difficult to meet the requirements of multi-face straightening and high-precision production of workpieces.

[0005] To address this problem, the present invention provides a straightening device for the production of steel structural components. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a straightening device for steel structure component production. Through a pressure-adaptive clamping component, the device can monitor and automatically adjust the clamping force in real time, improving the adaptability and versatility of the equipment in production. The multi-faceted straightening component, in conjunction with the straightening moving component, can simultaneously straighten multiple surfaces of the steel structure component (such as upper and lower surfaces, front and rear surfaces), thereby achieving comprehensive and precise straightening and solving the aforementioned problems.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a straightening device for steel structure production, comprising a hollow frame, a controller fixedly connected to the top front side of the hollow frame, a pressure adaptive clamping assembly disposed inside the hollow frame, a multi-faceted straightening assembly disposed on the top of the hollow frame, and a straightening moving assembly disposed on the upper surface of the hollow frame.

[0008] Preferably, the pressure adaptive clamping assembly includes a fixed base plate, with lugs fixedly connected to both the front and rear sides of the fixed base plate, and a fixed post fixedly connected to the top of each of the front and rear lugs, and the front and rear fixed posts fixedly connected to the inner top wall of the hollow frame.

[0009] Preferably, a motor is fixedly connected to the bottom of the fixed base plate, and the output end of the motor extends through to the top of the fixed base plate and is fixed with a gear. Racks are meshed on both the front and rear sides of the gear. Two cross slide rails are fixed to the top of the fixed base plate, and two movable seats are slidably connected to the outer walls of the two cross slide rails. The two racks are fixedly connected to the two movable seats respectively. A rectangular through slot is opened at the top of the hollow frame, and a slider that is slidably connected to the rectangular through slot is fixed to the top of each of the two movable seats.

[0010] Preferably, the tops of both left and right sliders extend through to the top of the hollow frame and are fixedly connected to clamping blocks. Pressure sensors are fixedly connected to the opposite surfaces of the two left and right clamping blocks, and rubber pads are fixedly connected to the opposite surfaces of the two left and right pressure sensors. The controller is electrically connected to the motor and the two rubber pads respectively.

[0011] Preferably, the multi-faceted straightening assembly includes a straightening frame, with two bidirectional lead screws rotatably connected inside the straightening frame. Two servo motors are fixedly connected to the top of the straightening frame, and the output ends of the servo motors penetrate into the interior of the straightening frame and are fixedly connected to the bidirectional lead screws. Two threaded blocks are threadedly connected to the outer walls of the bidirectional lead screws and are slidably connected to the inner walls of the straightening frame. A transverse straightening wheel is rotatably connected to the opposite faces of the two threaded blocks.

[0012] Preferably, four side plates are fixedly connected to the right side of the straightening frame, and a bidirectional lead screw is rotatably connected to the opposite surfaces of the front and rear side plates. A servo motor is fixedly connected to the front side wall of the side plate, and the output end of the servo motor passes through to the rear side wall of the front side plate and is fixedly connected to the bidirectional lead screw. Two symmetrical threaded blocks are threadedly connected to the outer wall of the bidirectional lead screw, and a vertical straightening wheel is rotatably connected to the opposite surfaces of the upper and lower threaded blocks.

[0013] Preferably, the outer walls of the vertical straightening wheel and the horizontal straightening wheel are provided with straightening grooves, and the controller is electrically connected to two servo motors and two servo motors.

[0014] Preferably, the straightening moving assembly includes two rectangular slots, with lead screws rotatably connected inside the rectangular slots. A second motor is fixed to the left side of the hollow frame, and the output end of the second motor passes through the interior of the front rectangular slot and is fixedly connected to the front lead screw. The outer walls of both the front and rear lead screws are threaded with threaded blocks three that are fixedly connected to the straightening frame. The right ends of both the front and rear lead screws pass through the right side wall of the hollow frame and are fixed with toothed pulleys. The outer walls of the two toothed pulleys are fitted with toothed synchronous belts. The controller is electrically connected to the second motor. Beneficial effects

[0015] This utility model provides a straightening device for the production of steel structural components. Compared with the prior art, it has the following advantages: (1) The straightening device for producing steel structural components uses a pressure sensor to detect the pressure value between the rubber pad and the steel structural component in real time and feed it back to the controller. When the pressure reaches the preset threshold, the controller cuts off the power to motor one to complete the adaptive clamping and fixing. When the pressure sensor detects a change in pressure, it transmits the signal to the controller. The controller controls the speed and direction of motor one so that the clamping blocks can move away from or closer to each other. This allows for real-time monitoring and automatic adjustment of the clamping force, preventing plastic deformation of the steel structural component due to excessive clamping force or unstable clamping of the steel structural component due to insufficient clamping force. At the same time, motor one and motor two drive the bidirectional lead screw one and bidirectional lead screw two to rotate, causing the upper and lower threaded blocks one to move up and down relative to each other, and the front and rear threaded blocks two to move back and forth relative to each other, in order to match the width and thickness of the workpiece. This allows the equipment to automatically adapt to steel structural components with different cross-sectional dimensions (such as differences in width and thickness), reducing downtime for adjustment due to changes in workpiece specifications and improving the adaptability and versatility of the equipment in production.

[0016] (2) The straightening device for producing steel structural components can simultaneously straighten multiple surfaces (such as upper and lower surfaces, front and rear surfaces) of steel structural components by using multi-face straightening components and straightening moving components. It does not require multiple adjustments to the workpiece placement angle or replacement of the straightening mechanism. It can correct the bending and deformation of the workpiece in different directions in one go, thereby achieving all-round precise straightening. Attached Figure Description

[0017] Figure 1 This is a front-view perspective structural perspective view of this utility model; Figure 2 This is the rear view of the structure of this utility model; Figure 3 This is a schematic diagram of the pressure adaptive clamping component structure of this utility model; Figure 4 This is a schematic diagram of the multi-faceted straightening component structure of this utility model; Figure 5 This is a schematic diagram of the straightening moving component of this utility model.

[0018] In the diagram: 1. Hollow frame; 10. Support leg; 11. Anti-slip pad; 12. Controller; 2. Pressure adaptive clamping assembly; 20. Fixed base plate; 21. Ear seat; 22. Fixed column; 23. Motor 1; 24. Gear; 25. Rack; 26. Cross slide rail; 27. Moving seat; 28. Slider; 29. ​​Clamping block; 210. Pressure sensor; 211. Rubber pad; 212. Rectangular through slot; 3. Multi-faceted calibration. 30. Straightening Frame; 31. Two-way Lead Screw 1; 32. Servo Motor 1; 33. Threaded Block 1; 34. Horizontal Straightening Roller; 35. Side Plate; 36. Two-way Lead Screw 2; 37. Servo Motor 2; 38. Threaded Block 2; 39. Vertical Straightening Roller; 4. Straightening Moving Component; 40. Rectangular Groove; 41. Lead Screw; 42. Motor 2; 43. Threaded Block 3; 44. Toothed Pulley; 45. Toothed Synchronous Belt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0020] Please see Figure 1-3 A straightening device for producing steel structural components includes a hollow frame 1. Support legs 10 are fixedly connected to the four bottom corners of the hollow frame 1. Anti-slip pads 11 are fixedly connected to the bottom of the four support legs 10. A controller 12 is fixedly connected to the front top of the hollow frame 1. A pressure adaptive clamping assembly 2 is provided inside the hollow frame 1. A multi-faceted straightening assembly 3 is provided on the top of the hollow frame 1. A straightening moving assembly 4 is provided on the upper surface of the hollow frame 1.

[0021] Furthermore, the hollow frame 1 is made of welded steel plate, and its four bottom corners are fixedly connected to support legs 10 by bolts. The bottom of each of the four support legs 10 is fixedly connected to anti-slip pads 11 by adhesive. The anti-slip pads 11 are made of nitrile rubber. The top front side of the hollow frame 1 is fixedly connected to a controller 12 by screws. The controller 12 is a Siemens S7-1200 series PLC controller.

[0022] The pressure adaptive clamping assembly 2 includes a fixed base plate 20, with ear seats 21 fixedly connected to both the front and rear sides of the fixed base plate 20. A fixed post 22 is fixedly connected to the top of both the front and rear ear seats 21, and the two fixed posts 22 are fixedly connected to the inner top wall of the hollow frame 1.

[0023] A motor 23 is fixedly connected to the bottom of the fixed base plate 20. The output end of the motor 23 extends through to the top of the fixed base plate 20 and is fixedly connected to a gear 24. Both the front and rear sides of the gear 24 are meshed with racks 25 symmetrical about the center of the gear 24. The top of the fixed base plate 20 is fixedly connected to two cross slide rails 26 arranged symmetrically in front and behind and running left and right. The outer walls of the front and rear cross slide rails 26 are slidably connected to two movable seats 27 arranged symmetrically in left and right. The rear side wall of the rear rack 25 is fixedly connected to the inner wall of the right movable seat 27, and the front side wall of the front rack 25 is fixedly connected to the inner wall of the left movable seat 27. The top of the hollow frame 1 is provided with a rectangular through groove 212 running left and right. The tops of the left and right movable seats 27 are fixedly connected to sliders 28 that are slidably connected to the inner wall of the rectangular through groove 212.

[0024] The tops of the left and right sliders 28 extend through to the top of the hollow frame 1 and are fixedly connected to clamping blocks 29. Pressure sensors 210 are fixedly connected to the opposite surfaces of the left and right clamping blocks 29, and rubber pads 211 are fixedly connected to the opposite surfaces of the left and right pressure sensors 210. The controller 12 is electrically connected to the motor 23 and the two rubber pads 211 respectively.

[0025] Furthermore, motor 23 is a three-phase asynchronous motor with self-locking function. The output end of motor 23 passes through the top of the fixed base plate 20 via a coupling and is fixedly connected to gear 24. The cross slide rail 26 is a linear slide rail of model HGR20. Pressure sensors 210 are fixedly connected to the opposite surfaces of the two left and right clamping blocks 29 by screws. The pressure sensors 210 are of model HBMU9B. Rubber pads 211 are fixedly connected to the opposite surfaces of the two left and right pressure sensors 210 by adhesive. The rubber pads 211 are made of natural rubber. The controller 12 is electrically connected to motor 23 and the two pressure sensors 210 via wires.

[0026] The steel structure to be straightened is passed through the straightening frame 30 and placed between two clamping blocks 29. The controller 12 starts the motor 23, whose output drives the gear 24 to rotate. The gear 24 meshes with the racks 25 on both sides, causing the front rack 25 to drive the left movable seat 27 and the rear rack 25 to drive the right movable seat 27 to slide relative to each other along the cross slide rail 26. The movable seat 27 slides within the rectangular through slot 212 via the slider 28, causing the two clamping blocks 29 to move closer together to clamp the steel structure. During clamping, the pressure sensor 210 continuously monitors the pressure of the rubber pad 211 against the ground surface. The pressure value between the steel structural components is fed back to the controller 12. When the pressure reaches the preset threshold, the controller 12 cuts off the power to the motor 23 to complete the adaptive clamping and fixing. Through the set pressure adaptive clamping component 2, the clamping force can be monitored in real time and automatically adjusted to avoid plastic deformation of the steel structural components due to excessive clamping force, or unstable clamping of the steel structural components due to insufficient clamping force. At the same time, it can automatically adapt to steel structural components with different cross-sectional dimensions (such as differences in width and thickness), reduce downtime adjustment time caused by changes in workpiece specifications, and improve the adaptability and versatility of the equipment in production. Example 2:

[0027] Please see Figure 4-5 This embodiment provides a technical solution based on embodiment one: the multi-faceted straightening component 3 includes a straightening frame 30. Two bidirectional lead screws 31 are rotatably connected to the inner walls of the upper and lower sides of the straightening frame 30. Two servo motors 32 are fixedly connected to the top of the straightening frame 30. The output ends of the two servo motors 32 pass through the interior of the straightening frame 30 and are fixedly connected to the two bidirectional lead screws 31 respectively. Two threaded blocks 33 are threadedly connected to the outer walls of the two bidirectional lead screws 31, which are symmetrical and slidably connected to the sliding grooves opened on the front and rear sides of the straightening frame 30. A transverse straightening wheel 34 is rotatably connected to the opposite face of the two threaded blocks 33. A straightening groove is opened on the outer wall of the upper and lower transverse straightening wheels 34.

[0028] Four rectangular side plates 35 are fixedly connected to the right side of the straightening frame 30. Two bidirectional lead screws 36 are rotatably connected to the opposite surfaces of the front and rear side plates 35. Servo motors 37 are fixedly connected to the front side walls of the two front side plates 35. The output ends of the two servo motors 37 pass through the rear side walls of the two front side plates 35 and are fixedly connected to the upper and lower bidirectional lead screws 36 respectively. Two threaded blocks 38 are threadedly connected to the outer walls of the upper and lower bidirectional lead screws 36. Vertical straightening wheels 39 are rotatably connected to the opposite surfaces of the upper and lower threaded blocks 38. Straightening grooves are opened on the outer walls of the front and rear vertical straightening wheels 39. The controller 12 is electrically connected to two servo motors 32 and two servo motors 37 respectively.

[0029] Furthermore, both servo motor 1 32 and servo motor 2 37 are servo motors with self-locking function. The opposite surfaces of the two front and rear threaded blocks 1 33 are rotatably connected to a horizontal straightening wheel 34 through bearings. The opposite surfaces of the two upper and lower threaded blocks 2 38 are rotatably connected to a vertical straightening wheel 39 through bearings. The controller 12 is electrically connected to the two servo motors 1 32 and the two servo motors 2 37 through wires.

[0030] Based on the cross-sectional dimensions of the steel structure component, the controller 12 drives the servo motor 32 to rotate, and its output drives the bidirectional lead screw 31 to rotate, causing the upper and lower threaded blocks 33 to move relative to each other along the sliding groove of the straightening frame 30, adjusting the distance between the upper and lower horizontal straightening wheels 34 to match the height of the workpiece; at the same time, the controller 12 starts the servo motor 37, driving the bidirectional lead screw 36 to rotate, causing the front and rear threaded blocks 38 to drive the front and rear vertical straightening wheels 39 to move relative to each other, adjusting the distance to match the width of the workpiece. Through the cooperation of the multi-faceted straightening component 3 and the straightening movement component 4, multiple surfaces of the steel structure component (such as the upper and lower surfaces, front and rear surfaces) can be straightened simultaneously without having to adjust the workpiece placement angle or change the straightening mechanism multiple times. It can correct the bending and deformation problems of the workpiece in different directions in one go, thereby achieving all-round precise straightening. Example 3:

[0031] Please see Figure 4-5 This embodiment provides a technical solution based on embodiment one: the straightening moving component 4 includes two rectangular slots 40, which are symmetrically arranged front and back and run left and right. A lead screw 41 is rotatably connected inside both the front and back rectangular slots 40. A second motor 42 is fixedly connected to the left side of the hollow frame 1. The output end of the second motor 42 passes through the interior of the front rectangular slot 40 and is fixedly connected to the front lead screw 41. The outer walls of both the front and back lead screws 41 are threaded with threaded blocks 43 that slide with the inner walls of the rectangular slots 40. The upper surfaces of the opposite sides of the two threaded blocks 43 are fixedly connected to the straightening frame 30. The right ends of both the front and back lead screws 41 pass through the right side wall of the hollow frame 1 and are fixedly connected to toothed pulleys 44. Toothed synchronous belts 45 are sleeved on the outer walls of the two toothed pulleys 44. The controller 12 is electrically connected to the second motor 42.

[0032] Furthermore, motor 42 is a Y2-132S1-2 model three-phase asynchronous motor. The output end of motor 42 passes through the front rectangular groove 40 through a coupling and is fixedly connected to the front lead screw 41. The outer walls of the front and rear lead screws 41 are threaded with threaded blocks 43 that slide with the inner wall of the rectangular groove 40. The threaded blocks 43 are made of wear-resistant cast iron. The upper surfaces of the opposite sides of the front and rear threaded blocks 43 are fixedly connected to the straightening frame 30 by bolts. The toothed pulleys 44 are made of HT200 gray cast iron. The outer walls of the front and rear toothed pulleys 44 are fitted with toothed synchronous belts 45. The toothed synchronous belts 45 are polyurethane synchronous belts. The controller 12 is electrically connected to motor 42 through wires. The two toothed pulleys 44 are driven by the meshing of the toothed synchronous belts 45 fitted on their outer walls.

[0033] During the straightening operation, the controller 12 starts the second motor 42, whose output drives the front lead screw 41 to rotate. Through the transmission action of the toothed pulley 44 and the toothed synchronous belt 45, the two lead screws 41 rotate synchronously in the same direction (the thread direction of the two lead screws 41 is the same), causing the threaded block 43 to slide left and right along the rectangular groove 40, driving the straightening frame 30 to move as a whole. During the movement, the horizontal straightening wheel 34 applies a straightening force to the upper and lower surfaces of the steel structure through its straightening groove, and the vertical straightening wheel 39 applies a straightening force to the front and rear surfaces of the steel structure through its straightening groove, realizing multi-face synchronous straightening. The controller 12 coordinates the operating parameters of each motor according to the preset program to ensure that the straightening process is stable and controllable.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] The working principle and usage process of this utility model are as follows: During operation, the steel structure to be straightened is first passed through the straightening frame 30 and placed between two clamping blocks 29. The controller 12 starts the motor 23, whose output drives the gear 24 to rotate. The gear 24 meshes with the racks 25 on both sides, causing the front rack 25 to drive the left movable seat 27 and the rear rack 25 to drive the right movable seat 27 to slide relative to each other along the cross slide rail 26. The movable seat 27 slides within the rectangular through groove 212 via the slider 28, causing the two clamping blocks 29 to move closer together to clamp the steel structure. During clamping, the pressure sensor 210... The pressure value between the rubber pad 211 and the steel structure is detected in real time and fed back to the controller 12. When the pressure reaches the preset threshold, the controller 12 cuts off the power to the motor 23 to complete the adaptive clamping fixation. Through the set pressure adaptive clamping component 2, the clamping force can be monitored in real time and automatically adjusted to avoid plastic deformation of the steel structure due to excessive clamping force or unstable clamping of the steel structure due to insufficient clamping force. At the same time, it can automatically adapt to steel structure components with different cross-sectional dimensions (such as differences in width and thickness), reduce downtime adjustment time caused by changes in workpiece specifications, and improve the adaptability and versatility of the equipment in production.

[0036] Based on the cross-sectional dimensions of the steel structure component, the controller 12 drives the servo motor 32 to rotate, and its output drives the bidirectional lead screw 31 to rotate, causing the upper and lower threaded blocks 33 to move relative to each other along the sliding groove of the straightening frame 30, adjusting the distance between the upper and lower horizontal straightening wheels 34 to match the height of the workpiece; at the same time, the controller 12 starts the servo motor 37, driving the bidirectional lead screw 36 to rotate, causing the front and rear threaded blocks 38 to drive the front and rear vertical straightening wheels 39 to move relative to each other, adjusting the distance to match the width of the workpiece. Through the cooperation of the multi-faceted straightening component 3 and the straightening movement component 4, multiple surfaces of the steel structure component (such as the upper and lower surfaces, front and rear surfaces) can be straightened simultaneously without having to adjust the workpiece placement angle or change the straightening mechanism multiple times. It can correct the bending and deformation problems of the workpiece in different directions in one go, thereby achieving all-round precise straightening.

[0037] During the straightening operation, the controller 12 starts the second motor 42, whose output drives the front lead screw 41 to rotate. Through the transmission action of the toothed pulley 44 and the toothed synchronous belt 45, the two lead screws 41 rotate synchronously in the same direction (the thread direction of the two lead screws 41 is the same), causing the threaded block 43 to slide left and right along the rectangular groove 40, driving the straightening frame 30 to move as a whole. During the movement, the horizontal straightening wheel 34 applies a straightening force to the upper and lower surfaces of the steel structure through its straightening groove, and the vertical straightening wheel 39 applies a straightening force to the front and rear surfaces of the steel structure through its straightening groove, realizing multi-face synchronous straightening. The controller 12 coordinates the operating parameters of each motor according to the preset program to ensure that the straightening process is stable and controllable.

[0038] It should be noted that the controller 12, pressure sensor 210, and various motors are all common models on the market, and each component is a device or equipment that exists in the prior art or can be implemented by the prior art. Their power supply, specific composition and principle are clear to those skilled in the art. At the same time, the fixed connection method mentioned in this utility model can adopt the connection methods that exist in the prior art and are common, such as bolts, welding and bonding, so they will not be described in detail.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straightening device for steel structure component production, comprising a hollow frame (1), characterized in that: A controller (12) is fixedly connected to the top front side of the hollow frame (1), a pressure adaptive clamping component (2) is provided inside the hollow frame (1), a multi-faceted straightening component (3) is provided on the top of the hollow frame (1), and a straightening moving component (4) is provided on the upper surface of the hollow frame (1). The pressure adaptive clamping assembly (2) includes a fixed base plate (20), and ear seats (21) are fixedly connected to both the front and rear sides of the fixed base plate (20). A fixed post (22) is fixedly connected to the top of the front and rear ear seats (21), and the front and rear fixed posts (22) are fixedly connected to the inner top wall of the hollow frame (1). The bottom of the fixed base plate (20) is fixedly connected to a motor (23). The output end of the motor (23) extends through to the top of the fixed base plate (20) and is fixed with a gear (24). The front and rear sides of the gear (24) are meshed with racks (25). The top of the fixed base plate (20) is fixed with two cross slide rails (26). The outer walls of the two cross slide rails (26) are slidably connected with two movable seats (27). The two racks (25) are fixedly connected to the two movable seats (27) respectively. The top of the hollow frame (1) is provided with a rectangular through groove (212). The top of the two movable seats (27) is fixed with a slider (28) that is slidably connected to the rectangular through groove (212). The tops of the two sliders (28) extend through to the top of the hollow frame (1) and are fixedly connected to clamping blocks (29). Pressure sensors (210) are fixedly connected to the opposite surfaces of the two clamping blocks (29). Rubber pads (211) are fixedly connected to the opposite surfaces of the two pressure sensors (210). The controller (12) is electrically connected to motor one (23) and the two rubber pads (211) respectively. The multi-faceted straightening assembly (3) includes a straightening frame (30). The interior of the straightening frame (30) is rotatably connected to two bidirectional lead screws (31). The top of the straightening frame (30) is fixedly connected to two servo motors (32). The output end of the servo motors (32) passes through the interior of the straightening frame (30) and is fixedly connected to the bidirectional lead screws (31). The outer wall of the bidirectional lead screws (31) is threaded with two threaded blocks (33) that are slidably connected to the inner wall of the straightening frame (30). The opposite faces of the two threaded blocks (33) are rotatably connected to a transverse straightening wheel (34). Four side plates (35) are fixedly connected to the right side of the straightening frame (30). Two bidirectional lead screws (36) are rotatably connected to the opposite surfaces of the front and rear side plates (35). A servo motor (37) is fixedly connected to the front side wall of the side plate (35). The output end of the servo motor (37) passes through to the rear side wall of the front side plate (35) and is fixedly connected to the bidirectional lead screw (36). Two symmetrical threaded blocks (38) are threadedly connected to the outer wall of the bidirectional lead screw (36). A vertical straightening wheel (39) is rotatably connected to the opposite surfaces of the upper and lower threaded blocks (38). The outer walls of the vertical straightening wheel (39) and the horizontal straightening wheel (34) are provided with straightening grooves. The controller (12) is electrically connected to two servo motors (32) and two servo motors (37). The straightening moving assembly (4) includes two rectangular slots (40), with a lead screw (41) rotatably connected inside the rectangular slots (40). A second motor (42) is fixed on the left side of the hollow frame (1). The output end of the second motor (42) passes through the interior of the front rectangular slot (40) and is fixedly connected to the front lead screw (41). The outer walls of the front and rear lead screws (41) are threaded with threaded blocks (43) that are fixedly connected to the straightening frame (30). The right ends of the front and rear lead screws (41) pass through the right side wall of the hollow frame (1) and are fixed with toothed pulleys (44). The outer walls of the two toothed pulleys (44) are fitted with toothed synchronous belts (45). The controller (12) is electrically connected to the second motor (42).

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