Limiting guide structure and metal plate forming device thereof

Abstract

The utility model relates to the technical field of sheet metal forming, and discloses a limiting guide structure and a sheet metal forming device thereof, the limiting guide structure comprises a guide device, the guide device comprises a first fixing plate, the upper side wall surface, the lower side wall surface and the upper side wall surface of the front side of the first fixing plate are in a hollowed-out state, and the left side wall surface and the right side wall surface of the first fixing plate are each provided with an open groove; first limiting plates are arranged on the front side and the rear side in a cavity of the first fixing plate correspondingly, second limiting plates are arranged on the left side and the right side in the cavity of the first fixing plate correspondingly, a limiting guide structure and a main body are included, and the front side wall face, the left side wall face and the right side wall face of the main body are all in a hollowed-out state; the forming device comprises a top plate, the top wall face of the top plate is fixedly connected with the bottom wall face of the hydraulic telescopic rod, a plurality of first molds are fixedly installed on the bottom wall face of the top plate at equal intervals, and a plurality of second molds are arranged on the top wall face of the main body at equal intervals. And the workpiece can be limited and guided through the first limiting plate and the limiting block.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal forming technology, specifically, it relates to a limiting guide structure and its sheet metal forming device. Background Technology

[0002] Sheet metal forming technology, as an important process in modern manufacturing, is widely used in fields such as automobiles, aerospace, and electronic equipment, such as the production and processing of wiring boxes and power distribution cabinets. Its core lies in applying pressure to metal sheets using molds to induce plastic deformation and obtain the desired shape. In traditional sheet metal forming processes, the positioning, limiting, and guiding of the workpiece are key factors affecting forming accuracy and efficiency. However, the following problems still exist in existing technologies:

[0003] The prior art discloses a sheet metal stamping forming device (202321574496.4), which includes a main body. A baffle is provided at the bottom of the main body near the edge. A groove is formed at the bottom of the main body. A positioning mechanism is provided at the inside of the main body above the groove. Two sets of blower mechanisms are provided on the inner side wall of the main body near the bottom middle. The positioning mechanism includes a push plate. A transverse groove is formed at the bottom of the main body near the baffle.

[0004] Existing technology uses a hydraulic telescopic rod on the main body and a stamping block on the hydraulic telescopic rod to stamp the workpiece. Existing technology uses a positioning mechanism to position the workpiece. However, during the stamping process, the positioning mechanism needs to continuously position the workpiece, which may cause the stamping block to damage the positioning mechanism. Furthermore, when the existing technology needs to stamp the workpiece into a wave shape, it is necessary to replace the corresponding stamping die, which is cumbersome and costly. Therefore, the existing technology has certain drawbacks.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A limiting guide structure, comprising:

[0008] The guiding device includes a first fixing plate. The upper and lower side walls and the upper front wall of the first fixing plate are hollow. A slot is opened on the left and right side walls of the first fixing plate. A first limiting plate is provided at the front and rear sides of the cavity of the first fixing plate. A second limiting plate is provided at the left and right sides of the cavity of the first fixing plate.

[0009] In a preferred embodiment of this utility model, a movable block is provided on each of the left and right side walls of the first fixed plate, and a limiting groove is provided on the bottom wall of each of the front and rear ends of the two movable blocks. A telescopic rod is movably installed in the cavity of each of the multiple limiting grooves. The top wall of each of the multiple telescopic rods is fixedly connected to the bottom wall of the corresponding first limiting plate. A spring is fixedly installed on the bottom wall of each of the multiple telescopic rods, and the bottom end of each of the multiple springs is fixedly connected to the bottom wall of the cavity of each of the multiple limiting grooves.

[0010] In a preferred embodiment of this utility model, a third limiting hole is provided at both ends of the front side wall of the two first limiting plates, and the front and rear ends of the two second limiting plates are respectively movably installed in the corresponding third limiting hole cavities on the front and rear sides. A limiting block is fixedly installed on the bottom wall of the two second limiting plates, and an extension plate is fixedly installed at the front and rear ends of the two second limiting plates at their respective ends. Multiple second toothed racks are fixedly installed at equal intervals on the top wall of the second limiting plates and the extension plates.

[0011] A sheet metal forming apparatus, comprising:

[0012] As described in any of the above, the front wall and the left and right side walls of the main body are hollowed out, and a hydraulic telescopic rod is fixedly installed on the top wall inside the cavity of the main body.

[0013] The molding device includes a top plate, the top wall of which is fixedly connected to the bottom wall of the hydraulic telescopic rod. Multiple first molds are fixedly installed at equal intervals on the bottom wall of the top plate, and multiple second molds are arranged at equal intervals on the top wall of the main body. A threaded assembly and two limiting rods are arranged below the second molds.

[0014] In a preferred embodiment of this utility model, a second limiting hole is provided on each of the left and right side walls of the first fixing plate, and a first fixing plate is fixedly installed in the cavity of each of the two second limiting holes. The threaded assembly includes a movable block, and a first threaded rod is rotatably installed on each of the left and right side walls of the movable block. A second threaded rod is fixedly installed at the ends of the two first threaded rods that are far apart from each other, and a third threaded rod is fixedly installed at the ends of the two second threaded rods that are far apart from each other.

[0015] In a preferred embodiment of this utility model, a movable plate is fixedly installed on the bottom wall of the second mold. A threaded hole is opened at the middle position of the left and right side walls of the movable plate. The threaded assembly passes through multiple threaded holes and is threadedly connected to the through-holes of multiple corresponding threaded holes. The middle threaded hole is movably connected to the movable block.

[0016] In a preferred embodiment of this utility model, a first limiting hole is provided at both the front and rear ends of the left and right side walls of the movable plate. The two ends of the two limiting rods are respectively fixedly installed on the left and right side walls of the cavity of the first fixed plate. The two limiting rods pass through multiple corresponding first limiting holes and are movably connected to the penetration points of the first limiting holes. The movable plate in the middle is fixedly connected to the first limiting hole.

[0017] In a preferred embodiment of the present invention, a fixing block is fixedly installed at both ends of the top wall of the first limiting plate, and a spur gear is rotatably installed on the side wall of the corresponding fixing blocks on the front and rear sides that are close to each other. A lifting rod is fixedly installed at both ends of the bottom wall of the top plate, and multiple first racks are fixedly installed at equal intervals on the side wall of the two sets of lifting rods on the left and right sides that are far apart from each other. The first rack and the second rack mesh with the spur gear.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. In summary, by setting a first fixed plate, a first limiting plate, a spring, a telescopic rod, a first limiting plate, a second mold, a threaded assembly, and a second limiting plate, the first limiting plate and the limiting block can limit and guide the workpiece, which is convenient to use and has a simple structure.

[0020] 2. In summary, by setting up a spring, a first fixed plate, a telescopic rod, a spring, a third limiting hole, a threaded hole, a moving plate, a second mold, a movable block, a first limiting hole, a limiting rod, and a first mold, the rotation of the output ends of the two first fixed plates can drive the rotation of two sets of first threaded rods, second threaded rods, and third threaded rods. By using the different number of thread segments on the side walls of the first threaded rods, second threaded rods, and third threaded rods, the moving speeds of the second molds on the left and right sides are made different, thereby achieving the effect of equal spacing. Therefore, there is no need to change the mold, making it convenient to use and simple in structure.

[0021] 3. In summary, by setting up a first limiting plate, a telescopic rod, a spring, a third limiting hole, a fixing block, a spur gear, a second limiting plate, a second rack, an extension plate, a first rack, and a lifting rod, the limiting block can be disengaged from the workpiece during the deformation process, thus not hindering the deformation operation and preventing the first mold from damaging the second limiting plate.

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is a perspective view of one side of the molding device of this utility model;

[0026] Figure 3 This is a perspective view of the second mold 14 of this utility model;

[0027] Figure 4 This is a perspective view of the molding device of this utility model from another side;

[0028] Figure 5 This is a perspective view of the first fixing plate 15 of this utility model;

[0029] Figure 6 This is a perspective view of one side of the guiding device of this utility model;

[0030] Figure 7 This is a perspective view of the second limiting plate 32 of this utility model;

[0031] Figure 8 This is a perspective view of the limiting block 33, the first threaded rod 37, the second threaded rod 38, and the third threaded rod 39 of this utility model.

[0032] In the diagram: 10. Main body; 11. Hydraulic telescopic rod; 12. Top plate; 13. First mold; 14. Second mold; 15. First fixing plate; 16. Threaded assembly; 17. Limiting rod; 18. Threaded hole; 19. First limiting hole; 20. Moving plate; 21. Lifting rod; 22. First rack; 23. Second limiting hole; 24. Slot; 25. Limiting slot; 26. First limiting plate; 27. Telescopic rod; 28. Spring; 29. ​​Third limiting hole; 30. Fixing block; 31. Spur gear; 32. Second limiting plate; 33. Limiting block; 34. Extension plate; 35. Second rack; 36. Movable block; 37. First threaded rod; 38. Second threaded rod; 39. Third threaded rod. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0034] like Figure 1 As shown, a limiting guide structure includes:

[0035] The guiding device includes a first fixing plate 15. The upper and lower side walls and the upper front wall of the first fixing plate 15 are hollow. A slot 24 is provided on the left and right side walls of the first fixing plate 15. A first limiting plate 26 is provided on the front and rear sides of the cavity of the first fixing plate 15. A second limiting plate 32 is provided on the left and right sides of the cavity of the first fixing plate 15.

[0036] Each of the left and right side walls of the first fixed plate 15 is provided with a movable block 36. Each of the two movable blocks 36 is provided with a limiting groove 25 at the bottom of the front and rear ends. Each of the multiple limiting grooves 25 is movably installed with a telescopic rod 27. The top wall of each of the multiple telescopic rods 27 is fixedly connected to the bottom wall of the corresponding first limiting plate 26. Each of the multiple telescopic rods 27 is fixedly installed with a spring 28. The bottom end of each of the multiple springs 28 is fixedly connected to the bottom wall of the cavity of each of the multiple limiting grooves 25.

[0037] Each of the two first limiting plates 26 has a third limiting hole 29 at both ends of its front side wall. The front and rear ends of the two second limiting plates 32 are respectively movably installed in the corresponding third limiting hole 29 cavities on the front and rear sides. A limiting block 33 is fixedly installed on the bottom wall of each of the two second limiting plates 32. An extension plate 34 is fixedly installed at the front and rear ends of the two second limiting plates 32 at their respective ends. Multiple second racks 35 are fixedly installed at equal intervals on the top wall of the second limiting plates 32 and the extension plates 34.

[0038] In practical use, the operator can insert the workpiece from the front end of the first fixed plate 15 between the top wall of the front end of the first fixed plate 15 and the first limiting plate 26 on the front side. The limiting groove 25 can limit the spring 28. The force of the spring 28 can pull the telescopic rod 27 downward. The movement of the telescopic rod 27 can drive the first limiting plate 26 to move downward. By pressing the first limiting plate 26 downward, the workpiece is limited above the first fixed plate 15. The top wall of the hollow part of the first fixed plate 15 corresponds to the position of multiple second molds 14, so that the bottom wall of the workpiece can contact the top wall of multiple second molds 14. The threaded assembly 16 on the front side cooperates with the first fixed plate 15 to guide the workpiece. The pressing of the two threaded assemblies 16 can limit the workpiece. The limiting block 33 on the second limiting plate 32 can also press and limit the workpiece.

[0039] In summary, by setting the first fixed plate 15, the first limiting plate 26, the spring 28, the telescopic rod 27, the first limiting plate 26, the second mold 14, the thread assembly 16, and the second limiting plate 32, the first limiting plate 26 and the limiting block 33 can limit and guide the workpiece, which is convenient to use and has a simple structure.

[0040] like Figure 1 , Figure 2 and Figure 4 As shown, a sheet metal forming apparatus includes:

[0041] As described in any of the above, the limiting guide structure and the main body 10 are hollowed out on the front side wall and the left and right side walls of the main body 10, and a hydraulic telescopic rod 11 is fixedly installed on the top wall inside the cavity of the main body 10.

[0042] The molding device includes a top plate 12, the top wall of the top plate 12 is fixedly connected to the bottom wall of the hydraulic telescopic rod 11, a plurality of first molds 13 are fixedly installed at equal intervals on the bottom wall of the top plate 12, a plurality of second molds 14 are arranged at equal intervals on the top wall of the main body 10, and a threaded assembly 16 and two limiting rods 17 are arranged below the second molds 14.

[0043] A second limiting hole 23 is provided on each of the left and right side walls of the first fixing plate 15. A first fixing plate 15 is fixedly installed in the cavity of each of the two second limiting holes 23. The threaded assembly 16 includes a movable block 36. A first threaded rod 37 is rotatably installed on each of the left and right side walls of the movable block 36. A second threaded rod 38 is fixedly installed at the ends of the two first threaded rods 37 that are far apart from each other. A third threaded rod 39 is fixedly installed at the ends of the two second threaded rods 38 that are far apart from each other.

[0044] A movable plate 20 is fixedly installed on the bottom wall of the second mold 14. A threaded hole 18 is opened in the middle of the left and right side walls of the movable plate 20. The threaded assembly 16 passes through multiple threaded holes 18 and is threadedly connected to the through-holes of multiple corresponding threaded holes 18. The middle threaded hole 18 is movably connected to the movable block 33.

[0045] The movable plate 20 has a first limiting hole 19 at both ends of its left and right side walls. Two limiting rods 17 are fixedly installed on the left and right side walls of the cavity of the first fixed plate 15. Each limiting rod 17 passes through multiple corresponding first limiting holes 19 and is movably connected to the penetration points of the first limiting holes 19. The central movable plate 20 is fixedly connected to the first limiting hole 19. The first fixed plate 15 is electrically connected to the power supply and switch. Figure 8 The number of thread segments on the sidewalls of the first threaded rod 37, the second threaded rod 38, and the third threaded rod 39 decreases from the first threaded rod 37 to the third threaded rod 39. Furthermore, the threads between the first threaded rod 37 and the second threaded rod 38, and between the second threaded rod 38 and the third threaded rod 39, are not connected to each other. The multiple threaded holes 18 correspond to the number of thread segments of the third threaded rod 39, the second threaded rod 38, and the first threaded rod 37.

[0046] In practical use, the second limiting hole 23 can limit the first fixed plate 15. When the output ends of the two first fixed plates 15 rotate, they can drive the corresponding first threaded rod 37, second threaded rod 38, and third threaded rod 39 to rotate. The rotation of the first threaded rod 37, second threaded rod 38, and third threaded rod 39 can drive the moving plate 20 to move through the threaded hole 18. The movement of the moving plate 20 can drive the second mold 14 to move. The moving plate 20 cannot rotate due to the limitation of the first limiting hole 19 and the limiting rod 17. The moving speed of the moving plate 20 at different positions depends on the first threaded rod 37, second threaded rod 38, and third threaded rod 39. The number of thread segments on the threaded rod 39 determines the speed at which the moving plates 20 on both sides move faster, thus achieving an evenly spaced distribution. Since the threads of the first threaded rod 37, the second threaded rod 38, and the third threaded rod 39 are not connected, the corresponding moving plates 20 will not move to the wrong position. By distributing multiple second molds 14 at equal intervals in different positions, the workpiece can be formed in different shapes. The top plate 12 moves downward, driving the first mold 13 to move downward in conjunction with the second molds 14 to press the workpiece and complete the forming operation. The movable block 36 prevents the middle moving plate 20 from moving.

[0047] In summary, by setting up spring 28, first fixed plate 15, telescopic rod 27, spring 28, third limiting hole 29, threaded hole 18, moving plate 20, second mold 14, movable block 36, first limiting hole 19, limiting rod 17 and first mold 13, the rotation of the output ends of the two first fixed plates 15 can drive the rotation of two sets of first threaded rods 37, second threaded rods 38 and third threaded rods 39. By using the different number of thread segments on the side walls of the first threaded rods 37, second threaded rods 38 and third threaded rods 39, the moving speed of the second mold 14 on the left and right sides is different, thereby achieving the effect of equal spacing. Therefore, there is no need to change the mold, it is convenient to use and has a simple structure.

[0048] like Figure 4 , Figure 6 and Figure 7 As shown, a fixing block 30 is fixedly installed at both ends of the top wall of the first limiting plate 26. A spur gear 31 is rotatably installed on the side wall of the corresponding fixing blocks 30 on the front and rear sides that are close to each other. A lifting rod 21 is fixedly installed at both ends of the bottom wall of the top plate 12. Multiple first racks 22 are fixedly installed at equal intervals on the side wall of the two sets of lifting rods 21 on the left and right sides that are far apart from each other. The first racks 22 and the second racks 35 are meshed with the spur gear 31.

[0049] It is worth noting that the main body 10 limits the hydraulic telescopic rod 11, and the hydraulic telescopic rod 11 pushes the top plate 12 downward. Both the main body 10 and the hydraulic telescopic rod 11 have been disclosed in the sheet metal stamping forming device (202321574496.4), and will not be described in detail here.

[0050] In practical use, as the top plate 12 moves downward, it drives the lifting rod 21 to move downward. The movement of the lifting rod 21 drives the first rack 22 to move, which in turn meshes with the spur gear 31 and drives the spur gear 31 to rotate. The fixing block 30 can limit the movement of the spur gear 31. The rotation of the spur gear 31 can then drive the extension plate 34 to move via the second rack 35. The movement of the extension plate 34 can then drive the second limiting plate 32 to move, which in turn drives the limiting block 33 to move. By disengaging the limiting block 33 from the top wall of the workpiece, the movement is achieved. When the workpiece is de-limited, and the limiting block 33 disengages from the workpiece, the first mold 13 presses the workpiece onto the second mold 14, thereby limiting the workpiece through the first mold 13. During the deformation of the workpiece, the first limiting plate 26 will be pushed upward. When the front-to-back length of the workpiece is insufficient to be limited by the first limiting plate 26, it will be limited by the limiting block 33. When the left-to-right length of the workpiece is insufficient to be limited by the limiting block 33, it can be limited by pressing between the first mold 13 and the second mold 14. The second limiting plate 32 can be moved through the third limiting hole 29, and the second limiting plate 32 will also be limited.

[0051] In summary, by setting the first limiting plate 26, the telescopic rod 27, the spring 28, the third limiting hole 29, the fixing block 30, the spur gear 31, the second limiting plate 32, the second rack 35, the extension plate 34, the first rack 22, and the lifting rod 21, the limiting block 33 can be disengaged from the workpiece when the workpiece is deformed, so as not to hinder the deformation operation, and also to prevent the first mold 13 from damaging the second limiting plate 32.

[0052] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A limiting and guiding structure, characterized in that, include: The guiding device includes a first fixing plate (15). The upper and lower side walls and the upper front wall of the first fixing plate (15) are hollow. A slot (24) is opened on the left and right side walls of the first fixing plate (15). A first limiting plate (26) is provided on the front and rear sides of the cavity of the first fixing plate (15). A second limiting plate (32) is provided on the left and right sides of the cavity of the first fixing plate (15).

2. The limiting and guiding structure according to claim 1, characterized in that, A movable block (36) is provided on both the left and right sides of the first fixed plate (15). A limiting groove (25) is provided on the bottom wall of both the front and rear ends of the two movable blocks (36). A telescopic rod (27) is movably installed in the cavity of each limiting groove (25). The top wall of each telescopic rod (27) is fixedly connected to the bottom wall of the corresponding first limiting plate (26). A spring (28) is fixedly installed on the bottom wall of each telescopic rod (27). The bottom end of each spring (28) is fixedly connected to the bottom wall of the cavity of each limiting groove (25).

3. The limiting and guiding structure according to claim 2, characterized in that, Each of the two first limiting plates (26) has a third limiting hole (29) at both ends of the front side wall. The front and rear ends of the two second limiting plates (32) are respectively movably installed in the corresponding third limiting hole (29) cavities on the front and rear sides. A limiting block (33) is fixedly installed on the bottom wall of each of the two second limiting plates (32). An extension plate (34) is fixedly installed at the front and rear ends of the two second limiting plates (32) at the ends that are far apart from each other. Multiple second racks (35) are fixedly installed at equal intervals on the top wall of the second limiting plates (32) and the extension plates (34).

4. A sheet metal forming device, characterized in that, include: As described in any one of claims 1-3 above, the limiting guide structure and the main body (10) are hollowed out on the front side wall and the left and right side walls of the main body (10), and a hydraulic telescopic rod (11) is fixedly installed on the top wall of the cavity of the main body (10). The molding device includes a top plate (12), the top wall of the top plate (12) is fixedly connected to the bottom wall of the hydraulic telescopic rod (11), a plurality of first molds (13) are fixedly installed at equal intervals on the bottom wall of the top plate (12), a plurality of second molds (14) are arranged at equal intervals on the top wall of the main body (10), and a threaded assembly (16) and two limiting rods (17) are arranged below the second molds (14).

5. The sheet metal forming apparatus according to claim 4, characterized in that, A second limiting hole (23) is provided on both the left and right side walls of the first fixing plate (15). A first fixing plate (15) is fixedly installed in the cavity of each of the two second limiting holes (23). The threaded assembly (16) includes a movable block (36). A first threaded rod (37) is rotatably installed on both the left and right side walls of the movable block (36). A second threaded rod (38) is fixedly installed at the ends of the two first threaded rods (37) that are far apart from each other. A third threaded rod (39) is fixedly installed at the ends of the two second threaded rods (38) that are far apart from each other.

6. The sheet metal forming apparatus according to claim 5, characterized in that, A movable plate (20) is fixedly installed on the bottom wall of the second mold (14). A threaded hole (18) is opened in the middle of the left and right side walls of the movable plate (20). The threaded assembly (16) passes through multiple threaded holes (18) and is threadedly connected to the through-holes of multiple corresponding threaded holes (18). The middle threaded hole (18) is movably connected to the movable block (36).

7. The sheet metal forming apparatus according to claim 6, characterized in that, The movable plate (20) has a first limiting hole (19) at both ends of the front and rear sides of the left and right side walls. The two limiting rods (17) are fixedly installed on the left and right side walls of the cavity of the first fixed plate (15). The two limiting rods (17) pass through multiple corresponding first limiting holes (19) and are movably connected to the penetration of the first limiting holes (19). The movable plate (20) in the middle is fixedly connected to the first limiting hole (19).

8. The sheet metal forming apparatus according to claim 4, characterized in that, A fixing block (30) is fixedly installed on both the left and right ends of the top wall of the first limiting plate (26). A spur gear (31) is rotatably installed on the side wall of the corresponding fixing blocks (30) on the front and rear sides that are close to each other. A lifting rod (21) is fixedly installed on both the left and right ends of the bottom wall of the top plate (12). Multiple first racks (22) are fixedly installed at equal intervals on the side wall of the two sets of lifting rods (21) on the left and right sides that are far apart from each other. The first rack (22) and the second rack (35) mesh with the spur gear (31).

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