Auxiliary bending tool for steel formwork

Abstract

The application provides an auxiliary bending tool for a steel formwork, comprising a workboard, a supporting device arranged at the lower right corner of the workboard, a limiting device arranged above the workboard, a bending device arranged in the middle of the workboard, and a stepping motor arranged at the rear of the workboard and connected to the bending device. Through the above scheme, the stepping motor is used to drive the bending device, the accurate control of the bending process is realized, the problems such as uneven force and angle deviation that may occur in traditional manual operation are avoided, and the stability and reliability of operation are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of steel formwork bending technology, specifically to an auxiliary bending fixture for steel formwork. Background Technology

[0002] In current industrial production, traditional tooling designs for bending steel formwork often rely on operators manually pressing the handle and pushing the metal plate in to complete multiple bending processes.

[0003] Chinese patent CN222535976U discloses a metal plate bending fixture. One end of the metal plate is inserted between bending plates. Pressing the handle rotates a rotating disc, allowing the metal plate to be bent using two sets of bending plates. When the rotating plates reach a certain angle, a fixed rod engages with a limiting block, which limits the rotation angle of the rotating plates, keeping the bending degree within a set range. The handle is then released. This manual operation mode significantly increases the operator's workload. Furthermore, the frequent repetitive actions during actual operation easily introduce human error, negatively impacting bending consistency and overall quality. While existing fixtures use limiting blocks to precisely control the rotating disc's angle, effectively controlling the bending degree, wear on mechanical parts gradually increases over time, leading to decreased bending accuracy and ultimately affecting the bending quality of the steel template. Utility Model Content

[0004] This utility model provides an auxiliary bending fixture for steel formwork to solve the problems of large errors, low precision, and poor quality caused by multiple manual operations in the auxiliary bending fixture for steel formwork.

[0005] To address the aforementioned problems, this utility model provides an auxiliary bending fixture for steel templates, comprising: a work plate, a support device located at the lower right corner of the work plate, a limiting device located above the work plate, a bending device located in the middle of the work plate, and a stepper motor located behind the work plate and connected to the bending device. The bending device includes: a turntable located above the work plate, symmetrically arranged grooves on the turntable, a V-shaped bending plate slidably connected in the upper groove, a U-shaped bending plate slidably connected in the lower groove, a connecting rod spirally connected to the V-shaped bending plate and the U-shaped bending plate, a fixing rod fixed to one side of the turntable, and an encoder located at one end of the fixing rod and fixed to the turntable. Through the above solution, the bending device is driven by a stepper motor, thereby achieving control of the bending process and avoiding problems such as uneven force and angle deviation that may occur in traditional manual operation, thus enhancing the stability and reliability of the operation.

[0006] According to one embodiment of the present invention, the limiting device includes: an arc-shaped groove formed above the turntable, a plurality of threaded holes formed inside the arc-shaped groove, a limiting block disposed in the arc-shaped groove and slidably connected thereto, a bolt rod spirally connected between the limiting block and the threaded holes, and a fixing nut fixed behind the limiting block. Through the above scheme, effective limiting of steel templates of different specifications can be achieved, and adjustments can be made according to the actual size and shape of the steel template to ensure that the steel template maintains the correct position and posture during the bending process, thereby enhancing the stability of the bending process.

[0007] According to one embodiment of the present invention, the above-mentioned support device includes: a fixed frame located at the lower right corner of the working plate, a support rod slidably connected inside the fixed frame, and a first threaded rod located inside the fixed frame. The first threaded rod is helically connected to the support rod. Through the above scheme, the lateral position of the support rod can be precisely adjusted, ensuring the stability of the support rod during the bending process. It also effectively prevents the steel template from deforming or being damaged due to insufficient support during bending.

[0008] According to one embodiment of the present invention, the support rod includes an outer layer and an inner layer, and a ball screw is installed on the side of the outer layer. Through the above solution, the precise transmission of the ball screw ensures the accuracy of the support rod when adjusting the height, thereby improving the accuracy and positioning capability of the entire tooling.

[0009] According to one embodiment of the present invention, the support platform is equipped with a pressure sensor. Through the above scheme, the supporting force of the support platform on the steel template is monitored in real time to ensure that the steel template receives sufficient support during the bending process and to avoid deformation or damage caused by insufficient support.

[0010] According to one embodiment of this utility model, the encoder, pressure sensor, and stepper motor are all electrically connected to the controller. Through the above scheme, integrated control of the entire bending fixture is realized. The operator can monitor and adjust the bending angle, support force, and stepper motor movement status in real time through the control panel, which greatly improves the automation level of the fixture.

[0011] According to one embodiment of the present invention, a second threaded rod is rotatably connected inside the slide groove. The second threaded rod is helically connected to the V-shaped bending plate and the U-shaped bending plate. By rotating the second threaded rod, the movement distance of the V-shaped bending plate and the U-shaped bending plate in the slide groove can be precisely controlled, thereby achieving precise adjustment of the bending angle and ensuring the accuracy and consistency of the bending angle.

[0012] According to one embodiment of the present invention, a cooling fan is provided on one side of the turntable, and a damping shaft is connected between the cooling fan and the work plate. Through the above solution, the working temperature of the turntable and its nearby electronic components is significantly reduced, effectively preventing performance degradation or failure due to overheating, thereby extending the service life of the entire bending fixture.

[0013] According to one embodiment of the present invention, the V-angle of the above-mentioned V-shaped bending plate is 60°. Through the above scheme, it is ensured that a suitable bending radius and angle are provided during the bending process, thereby optimizing the bending effect and making the bent steel template have better strength and stability to meet specific engineering requirements.

[0014] According to one embodiment of the present invention, the maximum included angle formed by the fixed rod and the arc groove is 92°~94°. By setting a spring angle of 2°~4° through the above scheme, a more precise fit is ensured during installation and positioning, which helps to reduce installation difficulties or inaccurate positioning caused by angle deviation, and improves the overall stability and reliability of the tooling.

[0015] The technical advantages of this application are as follows:

[0016] This application provides an auxiliary bending fixture for steel templates, which uses a stepper motor to drive the bending device and is equipped with an encoder to achieve precise control of the bending process. This avoids problems such as uneven force and angle deviation that may occur in traditional manual operation, and enhances the stability and reliability of the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an auxiliary bending fixture for steel templates provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the back structure of an auxiliary bending fixture for steel templates provided by this utility model.

[0019] Figure 3 This is a top view schematic diagram of an auxiliary bending fixture for steel templates provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the bending process of an auxiliary bending fixture for steel templates provided by this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1000. Steel template; 1. Working plate; 201. First threaded rod; 202. Support rod; 203. Fixing frame; 204. Pressure sensor; 205. Ball screw; 301. V-shaped bending plate; 302. Connecting rod; 303. U-shaped bending plate; 304. Second threaded rod; 305. Encoder; 306. Fixing rod; 307. Turntable; 308. Slide groove; 501. Arc groove; 502. Limit block; 503. Fixing nut; 504. Threaded hole; 6. Cooling fan; 7. Stepper motor. Detailed Implementation

[0023] The following will be combined with the appendix Figures 1-3 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples and should not be used to limit the scope of protection of this application.

[0024] Reference Figures 1-3 This utility model provides an auxiliary bending fixture for steel templates, comprising: a work plate 1, a support device located at the lower right corner of the work plate 1, a limiting device located above the work plate 1, a bending device located in the middle of the work plate 1, and a stepper motor 7 located behind the work plate 1 and connected to the bending device; the bending device includes: a turntable 307 located above the work plate 1, the output shaft of the stepper motor 7 passing through the work plate 1 and fixedly connected to the center of the turntable 307, symmetrically opened grooves 308 on the turntable 307, and a V-shaped bending device slidably connected within the upper groove 308. A bending plate 301 is located in the lower slide groove 308 and slidably connected to a U-shaped bending plate 303. A connecting rod 302 is spirally connected to the V-shaped bending plate 301 and the U-shaped bending plate 303. A fixing rod 306 is fixed to one side of the turntable 307. An encoder 305 is located at one end of the fixing rod 306 and fixed to the turntable 307. Through the above scheme, the bending device is driven by a stepper motor 7, which realizes precise control of the bending process, avoids problems such as uneven force and angle deviation that may occur in traditional manual operation, and enhances the stability and reliability of operation.

[0025] The aforementioned limiting device includes: an arc-shaped groove 501 formed above the turntable 307; multiple threaded holes 504 formed inside the arc-shaped groove 501; a limiting block 502 slidably connected within the arc-shaped groove 501; a bolt rod spirally connected between the limiting block 502 and the threaded holes 504; and a fixing nut 503 fixed behind the limiting block 502. Through the above scheme, effective limiting of steel templates of different specifications can be achieved. Adjustments can be made according to the actual size and shape of the steel template 1000 to ensure that the steel template maintains the correct position and posture during the bending process, thereby enhancing the stability of the bending process.

[0026] The aforementioned support device includes: a fixed frame 203 located at the lower right corner of the working plate 1; a support rod 202 slidably connected inside the fixed frame 203; and a first threaded rod 201 located inside the fixed frame 203. The first threaded rod 201 is spirally connected to the support rod 202. Through the above scheme, the lateral position of the support rod 202 can be precisely adjusted, ensuring the stability of the support rod 202 during the bending process. It also effectively prevents the steel template 1000 from deforming or being damaged due to insufficient support during bending.

[0027] The aforementioned support rod 202 includes an outer layer and an inner layer. A ball screw 205 is installed on the side of the outer layer. Through the above scheme, the precise transmission of the ball screw 205 ensures the accuracy of the support rod 202 when adjusting its height, thereby improving the precision and positioning capability of the entire tooling.

[0028] The aforementioned support platform is equipped with a pressure sensor 204. Through the above scheme, the supporting force of the support platform on the steel formwork is monitored in real time to ensure that the steel formwork 1000 receives sufficient support during the bending process and to avoid deformation or damage caused by insufficient support.

[0029] The encoder 305, pressure sensor 204, and stepper motor 7 are all electrically connected to the controller. Optionally, the controller can integrate a display, control buttons, touch screen, etc., and the controller can be a Siemens PLC or similar controller. For example, in one embodiment, the operator needs to operate the controller to set the bending angle, which is then fed to the stepper motor 7. The stepper motor 7 drives the turntable 307 to rotate. The encoder 305 and pressure sensor 204 monitor the bending angle and support force in real time, improving the automation level of the tooling.

[0030] The slide groove 308 is internally rotatably connected to a second threaded rod 304. The second threaded rod 304 is connected to the V-shaped bending plate 301 in a right-handed manner, and to the U-shaped bending plate 303 in a left-handed manner. By rotating the second threaded rod 304, the movement distance of the V-shaped bending plate 301 and the U-shaped bending plate 303 within the slide groove 308 can be precisely controlled, realizing symmetrical movement of the two sets of bending plates, thereby achieving precise adjustment of the bending angle and ensuring the accuracy and consistency of the bending angle.

[0031] A cooling fan 6 is provided on one side of the turntable 307. The cooling fan 6 is connected to the working plate 1 by a damping shaft. Through the above solution, the working temperature of the turntable 307 and its nearby electronic components is significantly reduced, effectively preventing performance degradation or failure due to overheating, thereby extending the service life of the entire bending fixture.

[0032] The V-angle of the aforementioned V-shaped bending plate 301 is 60°. Through the above scheme, it is ensured that a suitable bending radius and angle are provided during the bending process, thereby optimizing the bending effect and making the bent steel formwork 1000 have better strength and stability to meet specific engineering requirements.

[0033] The maximum included angle between the aforementioned fixing rod 306 and the arc groove 501 is 92°~94°. By setting a springback angle of 2°~4° through the above scheme, a more precise fit is ensured during installation and positioning, which helps to reduce installation difficulties or inaccurate positioning caused by angular deviations and improves the overall stability and reliability of the tooling.

[0034] Working principle:

[0035] Based on the actual size and shape of the steel template 1000, a sliding limit block 502 is slidably positioned within the arc-shaped groove 501 above the turntable 307. A bolt rod is then screwed into the threaded hole 504 within the arc-shaped groove 501 to fix the position of the limit block 502. A fixing nut 503 further reinforces this position. Rotating the first threaded rod 201 within the fixing frame 203 precisely adjusts the lateral position of the support rod 202. The ball screw 205 on the outer side of the support rod 202 provides precise transmission, accurately adjusting the height of the support rod 202. One end of the steel template is gradually placed on top of the pressure sensor 204, passing between the V-shaped bending plate 301 and the U-shaped bending plate 303. Rotating the second threaded rod 304 within the slide groove 308 adjusts the distance between the two sets of bending plates, clamping them tightly.

[0036] The operator selects the bending angle by setting the controller, and the signal is output to the stepper motor 7. The stepper motor 7 drives the turntable 307 of the bending device to rotate, which in turn moves the V-shaped bending plate 301 and the U-shaped bending plate 303 on it, so that the two sets of bending plates bend the steel template 1000. When the turntable 307 rotates to a certain angle, the fixed rod 306 will connect with the limit block 502. The limit block 502 further limits the rotation angle of the turntable 307, keeping the bending degree of the two sets of bending plates on the steel template 1000 within the set range. After the steel template 1000 is bent, the stepper motor 7 reverses and rotates the turntable 307 back to the original position, and continues to advance the steel template 1000, repeating the above operation to bend the steel template 1000 into a shape with a preset angle. The cooling fan 6 on one side of the turntable 307 is connected to the work plate 1 via a damping shaft, which can reduce the operating temperature of the turntable 307 and its nearby electronic components, prevent performance degradation or failure caused by overheating, and extend the service life of the tooling.

[0037] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An auxiliary bending fixture for steel formwork, comprising: The work plate (1), the support device located at the lower right corner of the work plate (1), the limiting device located above the work plate (1), and the bending device located in the middle of the work plate (1) are characterized in that they further include: a stepper motor (7) located behind the work plate (1) and connected to the bending device. The bending device includes: a turntable (307) located above the working plate (1); symmetrically opened grooves (308) on the turntable (307); a V-shaped bending plate (301) located in the upper groove (308) and slidably connected to it; a U-shaped bending plate (303) located in the lower groove (308) and slidably connected to it; a connecting rod (302) spirally connected to the V-shaped bending plate (301) and the U-shaped bending plate (303); a fixing rod (306) fixed to one side of the turntable (307); and an encoder (305) located at one end of the fixing rod (306) and fixed to the turntable (307).

2. The auxiliary bending fixture for steel formwork according to claim 1, characterized in that, The limiting device includes: an arc-shaped groove (501) opened above the turntable (307), a plurality of threaded holes (504) opened inside the arc-shaped groove (501), a limiting block (502) disposed in the arc-shaped groove (501) and slidably connected, a bolt rod being spirally connected between the limiting block (502) and the threaded holes (504), and a fixing nut (503) fixed behind the limiting block (502).

3. The auxiliary bending fixture for steel formwork according to claim 1, characterized in that, The support device includes: a fixed frame (203) located at the lower right corner of the working plate (1), a support rod (202) located inside the fixed frame (203) and slidably connected, and a first threaded rod (201) located inside the fixed frame (203), the first threaded rod (201) being helically connected to the support rod (202).

4. The auxiliary bending fixture for steel formwork according to claim 3, characterized in that, The support rod (202) includes an outer layer and an inner layer, and a ball screw (205) is installed on the side of the outer layer.

5. The auxiliary bending fixture for steel formwork according to claim 3, characterized in that, The support rod (202) is equipped with a pressure sensor (204).

6. The auxiliary bending fixture for steel formwork according to claim 5, characterized in that, The encoder (305), the pressure sensor (204), and the stepper motor (7) are all electrically connected to the controller.

7. The auxiliary bending fixture for steel formwork according to claim 1, characterized in that, The slide groove (308) is internally rotatably connected to a second threaded rod (304), which is helically connected to the V-shaped bending plate (301) and the U-shaped bending plate (303).

8. The auxiliary bending fixture for steel formwork according to claim 1, characterized in that, A cooling fan (6) is provided on one side of the turntable (307), and a damping shaft is connected between the cooling fan (6) and the working plate (1).

9. The auxiliary bending fixture for steel formwork according to claim 1, characterized in that, The V-angle of the V-shaped bending plate (301) is 60°.

10. The auxiliary bending fixture for steel formwork according to claim 2, characterized in that, The maximum included angle between the fixed rod (306) and the arc groove (501) is 92°~94°.

Images