Manual bending machine with adjustable size

Abstract

The utility model discloses a size-adjustable manual bending machine, and belongs to the technical field of bending equipment. Comprising a bending table, supports are fixedly arranged on the two sides of the top of the bending table, and a top plate is fixedly arranged on the tops of the supports; the rotating assembly is arranged at the top of the bending table; the jack is arranged at the bottom of the top plate, the jack comprises a handle and a telescopic end, and the handle is used for driving the jack to conduct bending action; the upper bending die is detachably arranged at the bottom of the telescopic end; according to the bending device, the problem that in the prior art, when a bending knife lower die needs to be replaced, the bending knife lower die needs to be disassembled by disassembling a connecting piece, and the bending size is troublesome to adjust due to tedious operation is effectively solved, and then the effect that the lower bending groove is conveniently replaced so that the bending size can be conveniently adjusted is achieved.

Description

Technical Field

[0001] This application relates to the field of bending equipment technology, and more specifically, to a manual bending machine with adjustable dimensions. Background Technology

[0002] A bending machine is a machine used to bend metal sheets into specific shapes. It plays a key role in metal processing and manufacturing. The bending machine applies pressure to the metal sheet by using an upper die and a lower die to match the shape of the die, thereby forming the desired bend at a predetermined angle.

[0003] In related technologies, to address the issue that bending machines are expensive and small-scale steel structure processing plants do not have bending equipment, thus requiring outsourcing for production and increasing costs, a patent with publication number CN220371954U provides a manual steel plate bending device. This device uses a manual jack to provide downward pressure, which drives the bending blade to bend the plate. It has a simple and reliable structure, low price, and good economic efficiency.

[0004] Although the existing technical solutions mentioned above can achieve manual bending of the sheet metal by manually pressing down the handle of the jack, the bending of the sheet metal relies on the upper and lower dies of the bending cutter. When it is necessary to replace the upper and lower dies of the bending cutter, the connecting parts on both sides need to be disassembled, which is a cumbersome process and makes it difficult to adjust the bending size.

[0005] In view of this, we propose a manual bending machine with adjustable dimensions. Utility Model Content

[0006] The purpose of this application is to provide an adjustable manual bending machine that can effectively solve the problem in the prior art where bending of sheet metal relies on the upper and lower dies of the bending cutter. When it is necessary to replace the upper and lower dies, the connecting parts on both sides need to be disassembled, which is a cumbersome process and makes it difficult to adjust the bending size.

[0007] This application provides an adjustable-size manual bending machine, comprising:

[0008] A bending table, wherein supports are fixedly installed on both sides of the top of the bending table, and a top plate is fixedly installed on the top of the supports;

[0009] A rotating assembly is located on top of the bending table;

[0010] A jack is installed at the bottom of the top plate. The jack includes a handle and a telescopic end. The handle is used to drive the jack to perform a bending action.

[0011] The upper bending die is detachably installed at the bottom of the telescopic end;

[0012] The rotating component includes a lower bending die, which is configured as a regular polyhedron with an even number of faces. Each side of the lower bending die has a bending groove with different bending dimensions.

[0013] As an optional solution to the technical solution of this application, the inner side of the bracket is provided with a slide rail, both sides of the lower bending die are fixedly provided with handwheels, and the outer sides of the two handwheels are rotatably provided with sliders. The sliders are slidably arranged with the corresponding slide rails, and the inner side of the bracket is provided with a baffle at the top of the slider by bolts.

[0014] As an optional solution to the technical solution of this application, the upper bending die is detachably mounted on the bottom of the mounting base, and fixing plates are fixedly mounted on both sides of the top of the mounting base. The bottom of the telescopic end is detachably mounted to the fixing plates by bolts.

[0015] As an optional solution to the technical solution of this application, a positioning post is fixedly provided at the bottom of the mounting base, a positioning groove that cooperates with the positioning post is provided at the top of the upper bending die, and a fixing component is provided on the outside of the upper bending die for clamping and fixing the upper bending die.

[0016] As an optional solution to the technical solution of this application, the fixing component includes two clamping plates, both of which are slidably disposed on both sides of the mounting base via limiting posts. An inclined block is fixedly disposed on the side of each of the two clamping plates near the upper bending die. Both clamping plates are threaded onto the outside of the bidirectional bolt, and the thread directions at both ends of the bidirectional bolt are opposite.

[0017] The upper bending die has inclined grooves on both sides that cooperate with the inclined blocks, and the top of the mounting base is provided with a rotating seat, and the bidirectional bolt is rotatably located inside the rotating seat.

[0018] As an optional solution to the technical solution of this application, the jack further includes a rotating plate, which is fixedly disposed at the end of the handle and rotatably disposed on one side of the support rod. The support rod is fixedly disposed at the bottom of the top plate through a connecting column. The end of the rotating plate away from the handle is fixedly disposed with the piston of the small oil cylinder. A large oil cylinder is disposed on one side of the small oil cylinder, and the telescopic end is slidably disposed on the inner side of the large oil cylinder.

[0019] As an optional solution to the technical solution of this application, a limiting component is slidably provided on the outer side of the bracket. The limiting component includes a limiting frame, and sliding openings are provided on both sides of the limiting frame. A sliding pin is fixedly provided on the outer side of the bracket corresponding to the sliding opening. An adjusting bolt is threaded on the inner side of the limiting frame, and the adjusting bolt is rotatably located on one side of the bracket.

[0020] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0021] (1) This application uses a rotating component. By setting the lower bending die as a regular polyhedron structure, the lower bending groove can be replaced by rotating the lower bending die. Therefore, it effectively solves the problem in the prior art that when the lower bending die needs to be replaced, the lower bending die needs to be disassembled by disassembling the connecting parts. The replacement process is cumbersome, which makes it difficult to adjust the bending size. Thus, it achieves the effect of conveniently replacing the lower bending groove to adjust the bending size.

[0022] (2) This application provides fixing components on both sides of the mounting base. By rotating the bidirectional bolts, the two clamping plates can be driven to clamp or release the upper bending die, which facilitates the replacement of the upper bending die. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an adjustable-size manual bending machine disclosed in a preferred embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the rotating component in an adjustable-size manual bending machine disclosed in a preferred embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the assembly of the jack and the upper bending die in an adjustable manual bending machine according to a preferred embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the mounting base in an adjustable-size manual bending machine disclosed in a preferred embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the structure of the fixing component in an adjustable-size manual bending machine disclosed in a preferred embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the upper bending die in an adjustable-size manual bending machine disclosed in a preferred embodiment of this application.

[0029] Figure 7 This is a schematic diagram of the bending table in an adjustable-size manual bending machine disclosed in a preferred embodiment of this application;

[0030] The following are the labeling instructions in the diagram: 1. Bending table; 11. Support; 111. Slide rail; 112. Sliding pin; 113. Baffle; 12. Top plate; 2. Rotating assembly; 21. Lower bending die; 211. Lower bending groove; 22. Slider; 23. Handwheel; 3. Jack; 31. Handle; 32. Rotating plate; 33. Support rod; 34. Connecting column; 35. Small hydraulic cylinder; 36. Large hydraulic cylinder; 37. Telescopic end; 4. Upper bending die; 401. Positioning groove; 402. Inclined groove; 41. Mounting base; 411. Positioning column; 412. Rotating base; 413. Fixing plate; 42. Fixing assembly; 421. Clamping plate; 4211. Inclined block; 4212. Limiting column; 4213. Reinforcing plate; 422. Two-way bolt; 5. Limiting assembly; 51. Limiting frame; 511. Sliding port; 52. Adjusting bolt. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1 , Figure 2 and Figure 3 This application discloses an adjustable-size manual bending machine, including a bending table 1. Supports 11 are fixedly installed on both sides of the top of the bending table 1. A top plate 12 is fixedly installed on the top of the support 11. A rotating component 2 is installed on the top of the bending table 1. A jack 3 is installed at the bottom of the top plate 12. The jack 3 includes a handle 31 and a telescopic end 37. The handle 31 is used to drive the jack 3 to perform bending actions. An upper bending die 4 is detachably installed at the bottom of the telescopic end 37. The rotating component 2 includes a lower bending die 21. The lower bending die 21 is configured as a regular polyhedron with an even number of faces. Each side of the lower bending die 21 has a lower bending groove 211 with different bending sizes. Furthermore, each side of the lower bending die 21 has a lower bending groove 211 of different shapes, such as V-shaped, U-shaped, or corrugated.

[0033] When bending the sheet material, the sheet material is placed on top of the lower bending die 21. The operator presses down the handle 31 multiple times to drive the telescopic end 37 down, thereby driving the upper bending die 4 to apply pressure to the sheet material. The upper bending die 4 cooperates with the lower bending groove 211 to bend the sheet material.

[0034] When the bending shape changes, the upper bending die 4 is removed from the bottom of the telescopic end 37 and a suitable upper bending die 4 is replaced. By rotating the lower bending die 21, the corresponding lower bending groove 211 is rotated to the bottom of the upper bending die 4. The lower bending die 21 is set as a regular polyhedron with an even number of faces. During bending, the lower bending die 21 can be supported by the bottom face, ensuring the stability of the lower bending die 21.

[0035] Reference Figure 1 , Figure 2 and Figure 7 The inner side of the support 11 is provided with a slide rail 111, and both sides of the lower bending die 21 are fixedly provided with handwheels 23. The outer sides of the two handwheels 23 are rotatably provided with sliders 22. The sliders 22 are slidably provided with the corresponding slide rails 111. The inner side of the support 11 is provided with a baffle 113 at the top of the slider 22 by bolts.

[0036] Before rotating the lower bending die 21, lift the lower bending die 21 by using the handwheel 23, so that the slider 22 slides on the side of the slide rail 111, thereby ensuring the stability of the movement of the lower bending die 21. Rotating the handwheel 23 drives the lower bending die 21 to rotate, and the replacement of the lower bending groove 211 can be completed. When it is necessary to replace the rotating component 2, the rotating component 2 can be taken out by removing the baffle 113.

[0037] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The upper bending die 4 is detachably mounted on the bottom of the mounting base 41. Fixing plates 413 are fixedly mounted on both sides of the top of the mounting base 41. The bottom of the telescopic end 37 is detachably mounted to the fixing plates 413 via bolts. A positioning post 411 is fixedly mounted on the bottom of the mounting base 41. A positioning groove 401 that mates with the positioning post 411 is provided on the top of the upper bending die 4. A fixing assembly 42 is provided on the outer side of the upper bending die 4 for clamping and fixing the upper bending die 4. The fixing assembly 42 includes two clamping plates 421, both of which are connected by a limit... Positioning posts 4212 are slidably disposed on both sides of mounting base 41. Two clamping plates 421 are fixedly provided with inclined blocks 4211 on the side near the upper bending die 4. Both clamping plates 421 are threaded on the outside of the bidirectional bolts 422. The threads at both ends of the bidirectional bolts 422 are in opposite directions. Inclined grooves 402 that cooperate with the inclined blocks 4211 are provided on both sides of the upper bending die 4. A rotating seat 412 is provided on the top of mounting base 41. The bidirectional bolts 422 are rotatably disposed on the inside of the rotating seat 412. A reinforcing plate 4213 is provided on the outside of the clamping plates 421.

[0038] When it is necessary to replace the upper bending die 4, the double-acting bolt 422 is rotated inside the rotating seat 412. The threads on both sides of the double-acting bolt 422 engage with the corresponding clamping plates 421, causing the two clamping plates 421 to move away from each other. This releases the oblique block 4211 from fixing the upper bending die 4, allowing the upper bending die 4 to be removed. The positioning groove 401 on the top of the new upper bending die 4 is aligned with the positioning post 411 to facilitate the positioning of the upper bending die 4. Then, the double-acting bolt 422 is rotated in the opposite direction, causing the double-acting bolt 422 to move the two clamping plates 421 closer to each other. The oblique block 4211 contacts the oblique groove 402, which laterally fixes the upper bending die 4 while applying an upward force to the upper bending die 4, thus fixing the new upper bending die 4 and completing the replacement of the upper bending die 4.

[0039] Reference Figure 1 and Figure 3 The jack 3 also includes a rotating plate 32, which is fixedly mounted on the end of the handle 31. The rotating plate 32 is rotatably mounted on one side of the support rod 33. The support rod 33 is fixedly mounted on the bottom of the top plate 12 via a connecting column 34. The end of the rotating plate 32 away from the handle 31 is fixedly mounted to the piston of the small oil cylinder 35. A large oil cylinder 36 is provided on one side of the small oil cylinder 35, and the telescopic end 37 is slidably mounted on the inner side of the large oil cylinder 36.

[0040] When bending the sheet metal, pressing down the handle 31 can drive the rotating plate 32 to rotate, thereby driving the piston inside the small oil cylinder 35 to move. Pressing down the handle 31 multiple times can drive the telescopic end 37 to slide inside the large oil cylinder 36, which facilitates manual bending of the sheet metal. The support rod 33 and the connecting column 34 provide support for the rotating plate 32 and the handle 31.

[0041] Reference Figure 1 and Figure 7 A limiting component 5 is slidably provided on the outer side of the bracket 11. The limiting component 5 includes a limiting frame 51. Sliding openings 511 are provided on both sides of the limiting frame 51. A sliding pin 112 is fixedly provided on the outer side of the bracket 11 corresponding to the sliding opening 511. An adjusting bolt 52 is threaded on the inner side of the limiting frame 51. The adjusting bolt 52 is rotatably provided on one side of the bracket 11.

[0042] When the plate is placed on top of the rotating assembly 2, the plate is limited by the side of the limiting frame 51 away from the adjusting bolt 52, which facilitates the positioning of the plate. By rotating the adjusting bolt 52, the limiting frame 51 slides on the outside of the bracket 11 with the cooperation of the sliding port 511 and the sliding pin 112, so that the equipment is suitable for positioning plates of various lengths.

[0043] In summary, when using the adjustable-size manual bending machine disclosed in this application embodiment, the sheet metal is placed on top of the lower bending die 21. The operator can drive the rotating plate 32 to rotate by pressing down the handle 31, thereby driving the piston inside the small oil cylinder 35 to move. Pressing down the handle 31 multiple times can drive the telescopic end 37 to slide inside the large oil cylinder 36, thereby driving the upper bending die 4 to apply pressure to the sheet metal. The sheet metal is bent by the cooperation between the upper bending die 4 and the lower bending groove 211.

[0044] When the bending shape changes, the bidirectional bolt 422 is rotated inside the rotating seat 412. The threads on both sides of the bidirectional bolt 422 engage with the corresponding clamping plates 421, causing the two clamping plates 421 to move away from each other. This releases the oblique block 4211 from fixing the upper bending die 4, allowing the upper bending die 4 to be removed. The positioning groove 401 on the top of the new upper bending die 4 is aligned with the positioning post 411 for easy positioning. Then, the bidirectional bolt 422 is rotated in the opposite direction, causing the two clamping plates 421 to move closer together. The oblique block 4211 contacts the oblique groove 402, thus laterally fixing the upper bending die 4. An upward force is applied to the upper bending die 4 to fix the new upper bending die 4. The lower bending die 21 is lifted by the handwheel 23, so that the slider 22 slides on the side of the slide rail 111, thereby ensuring the stability of the movement of the lower bending die 21. The handwheel 23 is rotated to drive the lower bending die 21 to rotate, so that the corresponding lower bending groove 211 rotates to the bottom of the upper bending die 4, thus completing the replacement of the lower bending groove 211. When it is necessary to replace the rotating component 2, the rotating component 2 can be taken out by removing the baffle 113. The lower bending die 21 is set as a regular polyhedron with an even number of faces. During bending, the lower bending die 21 can be supported by the bottom face, ensuring the stability of the lower bending die 21.

Claims

1. A manually adjustable size bending machine characterized by, The utility model relates to a bending table, and it comprises the following parts: A bending table (1) is provided with a support (11) on both sides of the top of the bending table (1), and a top plate (12) is fixedly arranged on the top of the support (11); A rotating assembly (2) is arranged on the top of the bending table (1); A jack (3) is arranged at the bottom of the top plate (12), and the jack (3) comprises a handle (31) and a telescopic end (37), wherein the handle (31) is used for driving the jack (3) to perform a bending action; An upper bending die (4) is detachably arranged at the bottom of the telescopic end (37); The rotating assembly (2) comprises a lower bending die (21), the lower bending die (21) is arranged in a regular polyhedral structure and has an even number of faces, and a bending groove (211) with different bending sizes is arranged on each side face of the lower bending die (21).

2. The manually adjustable bender of claim 1, wherein: The inner side of the support (11) is provided with a sliding rail (111), the two sides of the lower bending die (21) are fixedly provided with hand wheels (23), the outer sides of the two hand wheels (23) are rotatably provided with sliding blocks (22), the sliding blocks (22) are slidably arranged on the corresponding sliding rails (111), and the inner side of the support (11) is detachably provided with a baffle (113) on the top of the sliding blocks (22) through bolts.

3. The manually adjustable bender of claim 1, wherein: The upper bending die (4) is detachably arranged at the bottom of a mounting seat (41), the two sides of the top of the mounting seat (41) are fixedly provided with fixed plates (413), and the bottom of the telescopic end (37) is detachably arranged on the fixed plates (413) through bolts.

4. The manually adjustable bender of claim 3, wherein: The bottom of the mounting seat (41) is fixedly provided with a positioning column (411), the top of the upper bending die (4) is provided with a positioning groove (401) matched with the positioning column (411), and the outer side of the upper bending die (4) is provided with a fixing assembly (42) for clamping and fixing the upper bending die (4).

5. The manually adjustable bender of claim 4, wherein: The fixing assembly (42) comprises two clamping plates (421), the two clamping plates (421) are slidably arranged on the two sides of the mounting seat (41) through limiting columns (4212), the side of the two clamping plates (421) close to the upper bending die (4) is fixedly provided with an inclined block (4211), the two clamping plates (421) are threadedly arranged on the outer sides of bidirectional bolts (422), and the screw thread directions of the two ends of the bidirectional bolts (422) are opposite. The two sides of the upper bending die (4) are provided with inclined grooves (402) matched with the inclined blocks (4211), and the top of the mounting seat (41) is provided with a rotating seat (412), and the bidirectional bolts (422) are rotatably arranged in the inner side of the rotating seat (412).

6. The manually adjustable bender of claim 1, wherein: The jack (3) further includes a rotating plate (32) fixedly arranged at the end of the handle (31), the rotating plate (32) is rotatably arranged on one side of the supporting rod (33), the supporting rod (33) is fixedly arranged on the bottom of the top plate (12) through the connecting column (34), one end of the rotating plate (32) away from the handle (31) is fixedly arranged with the piston of the small oil cylinder (35), one side of the small oil cylinder (35) is provided with the large oil cylinder (36), and the telescopic end (37) is slidably arranged on the inner side of the large oil cylinder (36).

7. The manually adjustable bender of claim 1, wherein: The outer side of the support (11) is slidably provided with a limiting assembly (5), the limiting assembly (5) comprises a limiting frame (51), sliding openings (511) are formed on both sides of the limiting frame (51), the outer side of the support (11) is fixedly provided with a sliding pin (112) corresponding to the sliding opening (511), the inner side of the limiting frame (51) is threadedly provided with an adjusting bolt (52), and the adjusting bolt (52) is rotatably arranged on one side of the support (11).

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