An automatic cold-bending forming equipment with adjustable frame for civil air defense door panels

Abstract

The present invention belongs to the field of cold-bending technology, and relates to an adjustable automatic cold-bending device for forming the frame of a civil air defense door leaf. The device includes a base, on which a first cylinder is fixed; the side surface of a push block includes a flat surface and a conical surface; a first T-shaped slide and two curved T-shaped slides are longitudinally opened on the conical surface of the push block; an elastic plate, which is arranged in conjunction with the push block; a first T-shaped slider that slides in conjunction with the first T-shaped slide is fixed in the middle of the elastic plate; sliding blocks that slide in conjunction with the curved T-shaped slide are symmetrically fixed at both ends of the elastic plate. The provision of the elastic plate increases the contact area between the push rod of the first cylinder and the civil air defense door frame, so that the civil air defense door frame is stably supported during the cold-bending process. The elastic plate can be adjusted to adjust the bending radius of the elastic plate by moving up and down along the conical surface of the push block, so that the bending radius of the elastic plate and the bending radius of the civil air defense door frame tend to be consistent, making the bending radius of the civil air defense door frame more precise and controllable.

Description

Technical Field

[0001] The invention belongs to the technical field of cold roll forming, and relates to automatic cold roll forming equipment with adjustable frame of civil air defense door leaf. Background Art

[0002] Some civil air defense doors have curved frame structures that require the use of cold roll forming equipment for processing. The main purpose of cold roll forming is to bend and deform the steel appropriately according to the requirements of use without changing the internal stress of the steel, so that the steel can be bent and deformed without changing its mechanical properties. Most of the current cold roll forming equipment includes two rollers with a push rod between the two rollers. The push rod plays a bending role. Although the structure is simple, the contact area between the push rod and the civil air defense door frame is small. The support of the civil air defense door frame during the bending process is unstable, and the degree of bending of the civil air defense door frame is controlled by the displacement of the push rod, making it difficult to control the accuracy of the bending degree of the civil air defense door frame.

[0003] In order to solve the above problems, the present invention proposes an automatic cold-bending forming device with adjustable frame of civil air defense door leaf. Summary of the Invention

[0004] In order to solve the problems existing in the background technology, the present invention proposes an automatic cold-bending forming device with adjustable frame of civil air defense door leaf.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows:

[0006] a base, wherein a first cylinder is fixedly provided on the base;

[0007] A push block is connected to the first cylinder; the side of the push block includes a flat surface and a frustum; the frustum of the push block is longitudinally provided with a first T-shaped chute and two curved T-shaped chute;

[0008] An elastic plate is provided in cooperation with the push block; a first T-shaped slider is fixedly provided in the middle of the elastic plate and is slidably engaged with the first T-shaped chute; sliding blocks are symmetrically fixedly provided at both ends of the elastic plate and are slidably engaged with the curved T-shaped chute;

[0009] The push block is provided with a driving assembly for driving the elastic plate to move;

[0010] Guide wheels, second cylinders are symmetrically provided on both sides of the base, and a second motor is fixedly provided on the push rod of the second cylinder; there are two guide wheels, which are respectively fixedly provided on the motor shafts of the corresponding second motors.

[0011] Furthermore, a plurality of baffles are fixedly provided on the outer side of the bottom end of the elastic plate.

[0012] Furthermore, the driving assembly includes a first motor and a threaded rod;

[0013] The threaded rod is located in the first T-shaped chute, one end of the threaded rod is rotatably connected to the push block, and the other end of the threaded rod is fixedly connected to the motor shaft of the first motor; the first motor is fixedly arranged on the push block and close to one end of the first T-shaped chute;

[0014] The first T-shaped sliding block is threadedly connected to the threaded rod.

[0015] Furthermore, a second T-shaped sliding groove is provided on the base; and a second T-shaped sliding block is fixedly provided on the bottom of the push block and is slidably matched with the second T-shaped sliding groove.

[0016] Furthermore, through holes are symmetrically opened on both sides of the base, and the push rod of the second cylinder passes through the corresponding through holes and is fixedly connected to the mounting base, and the second motor is fixedly mounted on the mounting base;

[0017] A sliding seat is fixedly provided on the bottom of the base, and the second cylinder is in sliding cooperation with the sliding seat.

[0018] Furthermore, the slide seat is provided with a limiting slide, and a dual-axis motor is fixedly installed in the limiting slide in the middle part of the slide seat; the motor shafts of the dual-axis motors are fixedly connected with threaded rods, and the threaded rods are rotatably set in the limiting slide; the bases of the two second cylinders are fixed with sliders; the sliders are limitedly slidably matched with the corresponding limiting slides; the sliders are threadedly connected to the corresponding threaded rods.

[0019] Furthermore, a fixing plate is fixedly provided on the base; and the base of the first cylinder is fixedly mounted on the fixing plate.

[0020] Furthermore, both ends of the guide wheel have flanges.

[0021] Furthermore, the inner side surface of the elastic plate is in contact with the frustum surface of the push block, and the outer side surface of the elastic plate is a vertical arc surface.

[0022] Compared with the prior art, the present invention has the following advantages: the provision of the elastic plate increases the contact area between the push rod of the first cylinder and the civil air defense door frame, providing stable support for the civil air defense door frame during the cold bend forming process. The elastic plate moves up and down along the circular table surface of the push block to adjust the bending radius of the elastic plate, making the bending radius of the elastic plate and the bending radius of the civil air defense door frame more consistent, making the bending radius of the civil air defense door frame more precise and controllable.

[0023] At the same time, the two guide wheels can move toward or away from each other, so that the contact point between the civil defense door frame and the guide wheel is on the circumference of the elastic plate, so that the civil defense door frame and the elastic plate remain in contact, ensuring the contact area between the push rod of the first cylinder and the civil defense door frame, and also making the bending deformation of the civil defense door frame more in line with the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the ejector block in the present invention;

[0026] Figure 3 is a cross-sectional view of the ejector block of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the elastic plate in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the guide wheel in the present invention;

[0029] Figure 6 It is a schematic diagram of the installation of the guide wheel in the present invention.

[0030] In the figure: 1. base; 2. push block; 3. first T-shaped slide; 4. curved T-shaped slide; 5. elastic plate; 6. baffle; 7. first T-shaped slider; 8. slide block; 9. first motor; 10. threaded rod; 11. second T-shaped slider; 12. second T-shaped slide; 13. first cylinder; 14. fixing plate; 15. guide wheel; 16. second motor; 17. mounting base; 18. second cylinder; 19. through hole; 20. slider; 21. slide; 22. dual-axis motor; 23. threaded rod. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 5 As shown, the technical solution adopted by the present invention is as follows: an automatic cold-bending device for forming an adjustable frame of a civil air defense door leaf, comprising a base 1, a push block 2, an elastic plate 5, and a guide wheel 15. A fixed plate 14 is fixedly mounted on the base 1, and a first cylinder 13 is fixedly mounted on the fixed plate 14. The first cylinder 13 is drivingly connected to the push block 2. The extension or contraction of the first cylinder 13 drives the push block 2 to move.

[0033] The side surface of the pusher block 2 includes a flat surface and a conical surface. The push rod of the first cylinder 13 is fixed to the flat surface of the pusher block 2. The conical surface of the pusher block 2 is longitudinally provided with a first T-shaped chute 3 and two curved T-shaped chute 4, which are symmetrically arranged on either side of the first T-shaped chute 3.

[0034] The elastic plate 5 is configured to mate with the conical surface of the pusher block 2. A first T-shaped slider 7 is fixed to the center of the elastic plate 5, which mates with the first T-shaped chute 3. Sliding blocks 8 are symmetrically fixed to each end of the elastic plate 5, which mate with the corresponding curved T-shaped chute 4. The outer surface of the elastic plate 5 is a vertically curved surface, while the inner surface of the elastic plate 5 mates with the conical surface of the pusher block 2.

[0035] The elastic plate 5 increases the contact area between the civil air defense door frame and the first cylinder 13, providing stable support for the civil air defense door frame during bending. The bending radius of the elastic plate 5 is adjustable, so that the bending radius of the elastic plate 5 and the bending radius of the civil air defense door frame tend to be consistent, making the bending radius of the civil air defense door more accurately adjustable.

[0036] Due to the limiting action of the sliding block 8 and the first T-shaped slider 7, the elastic plate 5 rests on the truncated surface of the push block 2. As the elastic plate 5 moves downward along the truncated surface of the push block 2, the radius of the push block 2 increases, elastically deforming the elastic plate 5, increasing its radius and reducing its curvature. As the elastic plate 5 moves upward along the truncated surface of the push block 2, the radius of the push block 2 decreases, elastically deforming the elastic plate 5, decreasing its radius and increasing its curvature.

[0037] The push block 2 is provided with a driving assembly for driving the elastic plate 5 to move. The driving assembly drives the elastic plate 5 to move longitudinally along the circular table surface of the push block 2.

[0038] The driving assembly includes a first motor 9 and a threaded rod 10 .

[0039] A threaded rod 10 is rotatably mounted within the first T-shaped chute 3. One end of the threaded rod 10 is rotatably connected to the push block 2, and the other end of the threaded rod 10 is fixedly connected to the motor shaft of the first motor 9. The first motor 9 is fixedly mounted on the push block 2, near one end of the first T-shaped chute 3. The first T-shaped slider 7 is threadedly connected to the threaded rod 10.

[0040] The first motor 9 is started, driving the threaded rod 10 to rotate, and then driving the first T-shaped slider 7 to move along the first T-shaped slot 3, so that the elastic plate 5 moves longitudinally along the circular table surface of the push block 2.

[0041] The bottom end of the elastic plate 5 is fixedly provided with a plurality of baffles 6. The baffles 6 support the civil air defense door frame, so that the civil air defense door frame is more stably fitted on the elastic plate 5.

[0042] Two guide wheels 15 are symmetrically positioned on either side of the first cylinder 13. Through holes 19 are symmetrically formed on either side of the base 1. The push rod of the second cylinder 18 passes through the corresponding through holes 19 and is fixedly connected to the mounting base 17. The second motor 16 is fixedly mounted on the mounting base 17, and the guide wheels 15 are fixedly mounted on the motor shaft of the second motor 16. The guide wheels 15 have flanges at both ends to prevent the civil air defense door frame from longitudinally separating from the guide wheels 15.

[0043] A slide 21 is fixedly mounted on the bottom of the base 1, with a limited slideway defined thereon. A slider 20 is fixedly mounted on the bottom of the second cylinder 18, slidingly engaging with the limited slideway. A dual-axis motor 22 is fixedly mounted in the middle of the limited slideway of the slide 21. The motor shafts of the dual-axis motor 22 are each fixedly connected to a threaded rod 23, which is rotatably mounted within the limited slideway. The sliders 20 are threadedly connected to the corresponding threaded rods 23.

[0044] When the radius of the elastic plate 5 decreases or increases, the dual-axis motor 22 is activated, driving the threaded rod 23 to rotate, causing the slider 23 to move the second cylinder 18, causing the two second cylinders 18 to move toward or away from each other. This ensures that the contact point between the civil air defense door frame and the two guide wheels 15 is on the circumference of the elastic plate 5, ensuring that the civil air defense door frame and the elastic plate 5 maintain contact, ensuring the contact area between the push rod of the first cylinder 13 and the civil air defense door frame. This also ensures that the bending deformation of the civil air defense door frame meets the requirements.

[0045] The second cylinder 18 extends or contracts, driving the guide wheel 15 to move upward or downward, so that the guide wheel 15 and the elastic plate 5 are on the same horizontal plane.

[0046] The second motor 16 works to drive the guide wheel 15 to rotate, thereby performing cold bending on the civil air defense door frame between the guide wheel 15 and the elastic plate 5 .

[0047] A second T-shaped slot 12 is provided below the first cylinder 13 on the base 1 , and a second T-shaped slider 11 is fixed to the bottom of the push block 2 and is slidably engaged with the second T-shaped slot 12 .

[0048] When the push block 2 is driven to move by the first cylinder 13 , the second T-shaped sliding block 11 slides along the second T-shaped sliding groove 12 , so that the push block 2 moves more stably.

[0049] Working principle: In the initial state, the upper end surface of the flange at the lower end of the guide wheel 15 and the upper end surface of the baffle 6 are on the same horizontal plane.

[0050] During operation, the first air cylinder 13 is activated, shortening it. This causes the pusher block 2 to move rightward, while the second T-shaped slide 11 slides rightward along the second T-shaped slot 12. When the elastic plate 5 is to the right of the line formed by the two guide wheels 15, the leftmost baffle 6 and the lower right flange of the guide wheel 15 are aligned. The first air cylinder 13 is closed, and one end of the civil air defense door frame is placed between the two right flanges of one guide wheel 15. The door frame is then pushed toward the elastic plate 5, passing through the baffle 6 and entering between the two right flanges of the other guide wheel 15. This positions the door frame above the baffle 6 and between the two flanges of the guide wheel 15, with the frame resting against the elastic plate 5 and the sides of the guide wheel 15.

[0051] Then, the first cylinder 13 is started again to move the push block 2 to the left, and the elastic plate 5 pushes the middle part of the civil air defense door frame to the left, causing the civil air defense door frame to bend and deform. When the bending degree of the civil air defense door frame reaches the requirement, the first cylinder 13 is stopped.

[0052] Then, the second motor 16 is started, causing the two guide wheels 15 to rotate in the same direction. Driven by the guide wheels 15, the civil air defense door frame moves toward one end along the guide wheels 15, causing the portion not bent by the elastic plate 5 to move toward the elastic plate 5. This then performs a cold bending operation on the entire civil air defense door frame.

[0053] When the bending radius of the elastic plate 5 needs to be adjusted, the first motor 9 is activated. The first motor 9 drives the threaded rod 10 to rotate, causing the first T-shaped slider 7 to move upward or downward along the first T-shaped chute 3. The elastic plate 5 moves upward or downward along the circular table surface of the push block 2. The radius of the point where the elastic plate 5 contacts the push block 2 decreases or increases, and the elastic plate 5 undergoes elastic deformation, causing the radius of the elastic plate 5 to decrease or increase, and the bending radius of the elastic plate 5 to increase or decrease. When the bending radius of the elastic plate 5 reaches the required level, the first motor 9 is turned off. The second cylinder 18 is then activated, causing it to extend or contract, thereby driving the guide wheel 15 to move upward or downward. When the height of the guide wheel 15 is the same as that of the elastic plate 5, that is, the upper end surface of the flange at the lower end of the guide wheel 15 and the upper end surface of the baffle 6 are on the same horizontal plane, the second cylinder 18 is then turned off.

[0054] Then, the dual-axis motor 22 is started, which drives the two threaded rods 23 to rotate simultaneously, thereby causing the slider 20 to drive the second cylinder 18 to move toward or away from each other. This reduces or increases the distance between the two guide wheels 15, so that the contact point between the civil air defense door frame and the two guide wheels 15 is on the circumference of the elastic plate 5, and the civil air defense door frame and the elastic plate 5 remain in contact.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic cold-bending forming equipment for adjustable frame of civil air defense door leaf, characterized in that: include: A base (1), wherein a first cylinder (13) is fixedly provided on the base (1); A push block (2) is drivingly connected to a first cylinder (13); the side surface of the push block (2) includes a plane and a frustum; a first T-shaped chute (3) and two curved T-shaped chute (4) are longitudinally provided on the frustum; An elastic plate (5) is provided in cooperation with the push block (2); a first T-shaped sliding block (7) is fixedly provided in the middle of the elastic plate (5) and is slidably engaged with the first T-shaped sliding groove (3); sliding blocks (8) are symmetrically fixedly provided at both ends of the elastic plate (5) and are slidably engaged with the curved T-shaped sliding groove (4); The push block (2) is provided with a driving component for driving the elastic plate (5) to move; The guide wheels (15) are symmetrically provided with second cylinders (18) on both sides of the base (1), and a second motor (16) is fixedly provided on the push rod of the second cylinder (18); there are two guide wheels (15), which are respectively fixedly provided on the motor shafts of the corresponding second motors (16).

2. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 1 is characterized in that: A plurality of baffles (6) are fixedly arranged on the outer side of the bottom end of the elastic plate (5).

3. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 1 is characterized in that: The driving assembly comprises a first motor (9) and a threaded rod (10); The threaded rod (10) is located in the first T-shaped chute (3), one end of the threaded rod (10) is rotatably connected to the push block (2), and the other end of the threaded rod (10) is fixedly connected to the motor shaft of the first motor (9); the first motor (9) is fixedly arranged on the push block (2) and close to one end of the first T-shaped chute (3); The first T-shaped slider (7) is threadedly connected to the threaded rod (10).

4. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 1 is characterized by: A second T-shaped sliding groove (12) is provided on the base (1); and a second T-shaped sliding block (11) is fixedly provided on the bottom of the push block (2) and is slidably engaged with the second T-shaped sliding groove (12).

5. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 1 is characterized in that: Through holes (19) are symmetrically provided on both sides of the base (1); the push rod of the second cylinder (18) passes through the corresponding through holes (19) and is fixedly connected to the mounting base (17); and the second motor (16) is fixedly mounted on the mounting base (17); A sliding seat (21) is fixedly provided at the bottom of the base (1), and the second cylinder (18) is in sliding cooperation with the sliding seat (21).

6. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 5 is characterized in that: The slide seat (21) is provided with a limited slideway, and a dual-axis motor (22) is fixedly arranged in the limited slideway of the slide seat (21); the motor shafts of the dual-axis motor (22) are fixedly connected to threaded rods (23), and the threaded rods (23) are rotatably arranged in the limited slideway; the bases of the two second cylinders (18) are both fixed with sliders (20); the sliders (20) are limitedly slidably matched with the corresponding limited slideways; the sliders (20) are threadedly connected to the corresponding threaded rods (23).

7. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 1 is characterized in that: A fixing plate (14) is fixedly provided on the base (1); and the base of the first cylinder (13) is fixedly mounted on the fixing plate (14).

8. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 1 is characterized by: Both ends of the guide wheel (15) are provided with flanges.

9. The automatic cold-bending equipment for adjusting the frame of a civil air defense door leaf according to claim 1 is characterized in that: The inner side surface of the elastic plate (5) is in contact with the truncated table surface of the push block (2), and the outer side surface of the elastic plate (5) is a vertical arc surface.

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