A pressing die for bending sheet metal

Abstract

The present invention discloses a pressing die for bending sheet metal, comprising an adjustment component, including a fixed seat, a lower die, a guide block, a stopper, a connecting rod, a connecting frame, a rotating column and a threaded plate, wherein the lower die is arranged at the top of the fixed seat, the guide block is arranged at one side of the lower die, a guide groove is provided on the fixed seat, the stopper is located in the guide groove, the connecting rod is arranged at the bottom of the stopper, the connecting frame is located outside the connecting rod, the rotating column is rotatably connected in the fixed seat, the threaded plate is located in the rotating column, a threaded hole is provided on the connecting frame, and the threaded plate is threadedly connected to the threaded hole. The present invention has the following beneficial effects: by setting the adjustment component, the sheet metal can be bent into any angle without changing the die, thereby saving the time and labor cost of changing the die, and greatly shortening the production cycle.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal bending, in particular to a pressing die for bending and forming sheet metal materials. Background Art

[0002] Sheet metal bending is a common metal processing process. By applying external force to the sheet metal material, it is bent and deformed along a certain curve or angle to obtain the desired shape and structure. When bending the sheet metal, it needs to be bent into different angles depending on the process, such as the common 90° bend and other angle bends. When the sheet metal needs to be bent into different angles, the mold needs to be replaced. Replacing the mold takes a certain amount of time, including steps such as disassembling the old mold, installing the new mold, and debugging the equipment, which will cause production interruptions and reduce overall production efficiency. Summary of the invention

[0003] In view of the above problems existing in the existing pressing dies for bending and forming sheet metal materials, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that when the sheet metal needs to be bent into different angles, the mold needs to be replaced. Replacing the mold takes a certain amount of time, including steps such as disassembling the old mold, installing the new mold, and debugging the equipment, which will cause production interruptions and thus reduce the overall production efficiency.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a pressing die for bending sheet metal, comprising an adjustment component, including a fixed seat, a lower die, a guide block, a stopper, a connecting rod, a connecting frame, a rotating column and a threaded plate, the lower die is arranged on the top of the fixed seat, the guide block is arranged on one side of the lower die, a guide groove is provided on the fixed seat, the stopper is located in the guide groove, the connecting rod is arranged at the bottom of the stopper, the connecting frame is located on the outside of the connecting rod, the rotating column is rotatably connected to the fixed seat, the threaded plate is located in the rotating column, a threaded hole is provided on the connecting frame, and the threaded plate is threadedly connected to the threaded hole.

[0006] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, a clamping block is fixed on one side of the guide block, a clamping slot is opened on the lower die, the clamping block slides in the clamping slot, a first spring is fixed on one side of the clamping block, and one end of the first spring is fixed to the inner wall of the clamping slot.

[0007] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, a movable groove is provided in the clamping block, a limiting column is arranged in the movable groove, a limiting hole is provided on the lower die, the limiting column is engaged with the limiting hole, and a threaded column is rotatably connected in the guide block.

[0008] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, a slider is fixed to one side of the limiting column, a slide groove is provided in the clamping block, and the slider slides in the slide groove.

[0009] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, a threaded rod is fixed on one side of the threaded plate, a support block is fixed on the inner wall of the rotating column, a threaded sleeve is rotatably connected inside the support block, and the threaded sleeve is threadedly connected to the threaded rod.

[0010] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, a rotating rod is fixed on one side of the threaded sleeve, a positioning groove is opened on the rotating rod, a movable shaft slides in the positioning groove, a movable rod is fixed on the top of the movable shaft, and one end of the movable rod passes through the outside of the rotating column.

[0011] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, a fixed frame is fixed at one end of the rotating column, a limiting rod is inserted on the fixed frame, a limiting groove is provided on the movable rod, and the limiting rod is engaged with the limiting groove.

[0012] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, a fixing plate is fixed to one end of the limiting rod, a second spring is fixed to one side of the fixing plate, one end of the second spring is fixed to the fixing frame, and is sleeved on the outside of the limiting rod.

[0013] As a preferred solution of the pressing die for bending sheet metal materials described in the present invention, there are two limit grooves, which are respectively located on both sides of the movable rod.

[0014] As a preferred solution of the pressing die for bending and forming the sheet metal material described in the present invention, it also includes a bending component, which cooperates with the adjustment component, including a base, a support plate, a cylinder and an upper die, the base is located at the bottom of the fixed seat, the support plate is fixed to the top of the base, the cylinder is arranged on the top of the support plate, and the upper die is fixed to the output end of the cylinder.

[0015] The beneficial effect of the present invention is that by adjusting the setting of the components, the sheet metal material can be bent into any angle without changing the mold, thereby saving the time and labor cost of changing the mold and greatly shortening the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 An overall view of the pressing die for bending sheet metal.

[0018] Figure 2 A structural diagram of the fixed seat of a pressing die for bending sheet metal.

[0019] Figure 3 A cross-sectional structural diagram of the fixed seat of a pressing die for bending sheet metal.

[0020] Figure 4 This is a cross-sectional structural diagram of the lower die of a pressing die for bending sheet metal.

[0021] Figure 5 Pressing dies for bending sheet metal Figure 4 A partial enlarged structural diagram in the middle.

[0022] Figure 6 Diagram of the rotating column structure of a pressing die for bending sheet metal.

[0023] Figure 7 Pressing dies for bending sheet metal Figure 6 A partial enlarged structural diagram of point B in the middle.

[0024] Figure 8 A partial cross-sectional structural diagram of the rotating column of a pressing die for bending sheet metal.

[0025] Fig. 9 Pressing dies for bending sheet metal Figure 8 A partial enlarged structural diagram of point C in the middle. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1-Figure 3 and Figure 6 , which is the first embodiment of the present invention, and provides a sheet metal bending pressing die, the sheet metal bending pressing die comprises an adjustment assembly 200, including a fixed seat 201, a lower die 201a, a guide block 201b, a stopper 201c, a connecting rod 201d, a connecting frame 201e, a rotating column 201f and a threaded plate 201g, the lower die 201a is arranged on the top of the fixed seat 201, and the guide block 201b is arranged on the lower die 201a. On the side, a guide groove 201-1 is provided on the fixed seat 201, a stopper 201c is located in the guide groove 201-1, a connecting rod 201d is arranged at the bottom of the stopper 201c, a connecting frame 201e is located outside the connecting rod 201d, a rotating column 201f is rotatably connected in the fixed seat 201, a threaded plate 201g is located in the rotating column 201f, a threaded hole 201e-1 is provided on the connecting frame 201e, and the threaded plate 201g is threadedly connected to the threaded hole 201e-1.

[0031] There are two lower molds 201a, which are located on both sides of the top of the fixed base 201 respectively. A rotating groove is opened on the fixed base 201. The lower mold 201a is movably connected with the rotating groove. The number of guide blocks 201b corresponds to the lower mold 201a. The connecting rod 201d is hinged with the stop block 201c through a hinge plate. When the lower mold 201a is squeezed and rotated, it will drive the guide block 201b to move into the guide groove 201-1. At this time, the lower mold 201a can be positioned through the cooperation of the two to avoid the displacement of the lower mold 201a during rotation.

[0032] When the guide block 201b contacts the stopper 201c, the stopper 201c will limit the movement of the guide block 201b. At this time, the lower mold 201a cannot continue to rotate, and the sheet metal cannot be bent further and stays at the current angle, thereby completing the bending of the sheet metal. By moving the stopper 201c in the guide groove 201-1, the downward rotation angle of the lower mold 201a can be adjusted, so that the sheet metal can be bent into different angles.

[0033] When the position of the stopper 201c needs to be adjusted, the rotating column 201f is rotated to drive the threaded plate 201g to rotate. The threaded plate 201g drives the connecting frame 201e to move through the cooperation of the threaded hole 201e-1, and drives the connecting rod 201d and the stopper 201c to move through the connecting frame 201e. In this way, the position of the stopper 201c can be adjusted. The different positions of the stopper 201c inside the guide groove 201-1 correspond to different bending angles of the sheet metal. When the stopper 201c contacts the end of the inner wall of the guide groove 201-1, the sheet metal will be bent to 90°.

[0034] When the threaded plate 201g is engaged with the threaded hole 201e-1, the position of the connecting frame 201e can be locked by the thread lock, thereby preventing the stopper 201c from being displaced when being squeezed.

[0035] Example 2

[0036] Reference Figure 1-Figure 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0037] Specifically, a clamping block 202a is fixed on one side of the guide block 201b, a clamping slot 201a-1 is opened on the lower mold 201a, the clamping block 202a slides in the clamping slot 201a-1, a first spring 202b is fixed on one side of the clamping block 202a, and one end of the first spring 202b is fixed to the inner wall of the clamping slot 201a-1.

[0038] The clamping block 202a is T-shaped. The guide block 201b is connected to the lower mold 201a by the cooperation between the clamping block 202a and the clamping groove 201a-1, so that the clamping block 202a can be driven to rotate when the lower mold 201a rotates.

[0039] Since some sheet metal materials with high elasticity may rebound when being bent, the lower mold 201a drives the guide block 201b to contact the stop block 201c. At this time, the guide block 201b is squeezed by the stop block 201c to make the block 202a slide in the slot 201a-1, so that the lower mold 201a can continue to rotate downward a small angle, thereby appropriately increasing the bending angle and reserving a springback margin to reach the expected angle after springback.

[0040] The first spring 202b applies a thrust to the block 202a so that it can return to its original position after moving.

[0041] Specifically, a movable groove 202a-1 is provided in the clamping block 202a, a limiting column 202c is arranged in the movable groove 202a-1, a limiting hole 202d is provided on the lower mold 201a, the limiting column 202c is engaged with the limiting hole 202d, and a threaded column 202e is rotatably connected in the guide block 201b.

[0042] The threaded column 202e is connected to the inner thread of the limiting column 202c. When the limiting column 202c is engaged with the limiting hole 202d, the block 202a and the lower mold 201a can be locked, so that the block 202a cannot slide in the slot 201a-1. At this time, some sheet metal materials with low elasticity can be bent. When it is necessary to bend some sheet metal materials with high elasticity, it is only necessary to rotate the threaded column 202e to drive the limiting column 202c to move, so that the limiting column 202c is separated from the limiting hole 202d, thereby releasing the lock of the block 202a and allowing the block 202a to slide in the slot 201a-1.

[0043] Specifically, a slider 202f is fixed to one side of the limiting column 202c, a sliding groove 202a-2 is provided in the block 202a, and the slider 202f slides in the sliding groove 202a-2.

[0044] The cooperation between the slider 202f and the slide groove 202a-2 is used to limit the limiting column 202c, thereby preventing the limiting column 202c from rotating when moving.

[0045] Specifically, a threaded rod 203a is fixed to one side of the threaded plate 201g, a support block 203b is fixed to the inner wall of the rotating column 201f, a threaded sleeve 203c is rotatably connected inside the support block 203b, and the threaded sleeve 203c is threadedly connected to the threaded rod 203a.

[0046] Since 90° bending of sheet metal is a relatively common bending angle, it is necessary to be able to quickly adjust the lower mold 201a to a state where it can be bent 90°.

[0047] At this time, the threaded sleeve 203c can be rotated to drive the threaded rod 203a to move, and the threaded plate 201g can be driven to move into the rotating column 201f through the threaded rod 203a, and the threaded plate 201g can be separated from the threaded hole 201e-1, thereby releasing the position lock of the connecting frame 201e. When the guide block 201b contacts the stop block 201c, it will push the stop block 201c to move in the guide groove 201-1, and make the stop block 201c contact the end of the inner wall of the guide groove 201-1. At this time, the lower mold 201a can bend the sheet metal into 90°.

[0048] Specifically, a rotating rod 203d is fixed to one side of the threaded sleeve 203c, a positioning groove 203d-1 is opened on the rotating rod 203d, a movable shaft 203e slides in the positioning groove 203d-1, a movable rod 203f is fixed to the top of the movable shaft 203e, and one end of the movable rod 203f passes through the outside of the rotating column 201f.

[0049] When the movable rod 203f moves, the movable shaft 203e cooperates with the positioning groove 203d-1 to drive the rotating rod 203d to rotate, so that the threaded sleeve 203c can be driven to rotate through the rotating rod 203d.

[0050] Example 3

[0051] Reference Figure 1-Figure 9 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0052] Specifically, a fixed frame 204a is fixed to one end of the rotating column 201f, a limiting rod 204b is inserted into the fixed frame 204a, a limiting groove 203f-1 is formed on the movable rod 203f, and the limiting rod 204b is engaged with the limiting groove 203f-1.

[0053] When the limiting rod 204b is engaged with the limiting groove 203f-1, the position of the movable rod 203f can be locked through the cooperation of the two, so as to avoid the movable rod 203f from being displaced.

[0054] Specifically, a fixing plate 204c is fixed to one end of the limiting rod 204b, a second spring 204d is fixed to one side of the fixing plate 204c, one end of the second spring 204d is fixed to the fixing frame 204a, and is sleeved on the outside of the limiting rod 204b.

[0055] The second spring 204d applies a pulling force to the fixing plate 204c, and the fixing plate 204c drives the limiting rod 204b to move, so that the limiting rod 204b and the limiting groove 203f-1 can be more tightly engaged.

[0056] Specifically, there are two limiting grooves 203f-1, which are respectively located on both sides of the movable rod 203f.

[0057] By providing the two limiting grooves 203f-1, the movable rod 203f can be locked at different positions.

[0058] Specifically, it also includes a bending component 100, which cooperates with the adjustment component 200, including a base 101, a support plate 102, a cylinder 103 and an upper mold 104. The base 101 is located at the bottom of the fixed seat 201, the support plate 102 is fixed to the top of the base 101, the cylinder 103 is arranged on the top of the support plate 102, and the upper mold 104 is fixed to the output end of the cylinder 103.

[0059] The cylinder 103 is used to drive the upper mold 104 to move downward, so that the sheet metal material on the top of the lower mold 201a can be squeezed by the upper mold 104 to complete the bending of the sheet metal material.

[0060] When in use, the sheet metal is placed on the top of the lower mold 201a, and then the cylinder 103 is started to move the upper mold 104 downward, and the sheet metal on the top of the lower mold 201a is squeezed by the upper mold 104. When the lower mold 201a is squeezed and rotates, it will drive the guide block 201b to move into the guide groove 201-1. At this time, the lower mold 201a can be positioned by the cooperation of the two to avoid displacement of the lower mold 201a during rotation. When the guide block 201b contacts the stop block 201c, the stop block 201c will limit the movement of the guide block 201b. At this time, the lower mold 201a cannot continue to rotate, and the sheet metal cannot continue to bend, and stays at the current angle, thereby completing the bending of the sheet metal.

[0061] When the sheet metal needs to be bent into different angles, the rotating column 201f drives the threaded plate 201g to rotate, and the threaded plate 201g drives the connecting frame 201e to move through the cooperation of the threaded hole 201e-1, and drives the connecting rod 201d and the stopper 201c to move through the connecting frame 201e, so that the position of the stopper 201c can be adjusted. The different positions of the stopper 201c inside the guide groove 201-1 correspond to different bending angles of the sheet metal. The sheet metal can be bent into any angle without changing the mold, thereby saving the time and labor cost of changing the mold and greatly shortening the production cycle.

[0062] When bending some sheet metal materials with higher elasticity, the limiting column 202c is separated from the limiting hole 202d. At this time, the lower mold 201a drives the guide block 201b to contact the stop block 201c. At this time, the guide block 201b is squeezed by the stop block 201c, which makes the block 202a slide in the slot 201a-1, so that the lower mold 201a can continue to rotate downward a little, thereby appropriately increasing the bending angle, reserving a springback margin, and reaching the expected angle after springback. When bending some sheet metal materials with lower elasticity, the limiting column 202c is engaged with the limiting hole 202d, and the block 202a is locked with the lower mold 201a, so that the block 202a cannot slide in the slot 201a-1.

[0063] When it is necessary to quickly adjust the lower mold 201a to a state where the sheet metal can be bent into a 90° angle, move the movable rod 203f, and through the cooperation of the movable shaft 203e and the positioning groove 203d-1, drive the rotating rod 203d to rotate, and through the rotating rod 203d drive the threaded sleeve 203c to rotate, so that the threaded sleeve 203c drives the threaded rod 203a to move, and through the threaded rod 203a drives the threaded plate 201g to move into the rotating column 201f, and separate the threaded plate 201g from the threaded hole 201e-1, thereby releasing the position lock of the connecting frame 201e, and when the guide block 201b contacts the stopper 201c, it will push the stopper 201c to move in the guide groove 201-1, and make the stopper 201c contact the end of the inner wall of the guide groove 201-1, at this time, the lower mold 201a can bend the sheet metal into a 90° angle.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pressing die for bending sheet metal, characterized in that: include, The adjustment assembly (200) comprises a fixed seat (201), a lower mold (201a), a guide block (201b), a stop block (201c), a connecting rod (201d), a connecting frame (201e), a rotating column (201f) and a threaded plate (201g), wherein the lower mold (201a) is arranged on the top of the fixed seat (201), the guide block (201b) is arranged on one side of the lower mold (201a), the fixed seat (201) is provided with a guide groove (201-1), and the stop block (201c) Located in the guide groove (201-1), the connecting rod (201d) is arranged at the bottom of the stopper (201c), the connecting frame (201e) is located outside the connecting rod (201d), the rotating column (201f) is rotatably connected to the fixing seat (201), the threaded plate (201g) is located in the rotating column (201f), a threaded hole (201e-1) is opened on the connecting frame (201e), and the threaded plate (201g) is threadedly connected to the threaded hole (201e-1); A clamping block (202a) is fixed on one side of the guide block (201b); a clamping slot (201a-1) is provided on the lower mold (201a); the clamping block (202a) slides in the clamping slot (201a-1); a first spring (202b) is fixed on one side of the clamping block (202a); one end of the first spring (202b) is fixed to the inner wall of the clamping slot (201a-1); A threaded rod (203a) is fixed to one side of the threaded plate (201g), a support block (203b) is fixed to the inner wall of the rotating column (201f), a threaded sleeve (203c) is rotatably connected inside the support block (203b), and the threaded sleeve (203c) is threadedly connected to the threaded rod (203a); A rotating rod (203d) is fixed to one side of the threaded sleeve (203c), a positioning groove (203d-1) is provided on the rotating rod (203d), a movable shaft (203e) slides in the positioning groove (203d-1), a movable rod (203f) is fixed to the top end of the movable shaft (203e), and one end of the movable rod (203f) passes through the outside of the rotating column (201f).

2. The pressing die for bending sheet metal as claimed in claim 1, characterized in that: A movable groove (202a-1) is provided in the clamping block (202a), a limiting column (202c) is arranged in the movable groove (202a-1), a limiting hole (202d) is provided on the lower mold (201a), the limiting column (202c) is engaged with the limiting hole (202d), and a threaded column (202e) is rotatably connected in the guide block (201b).

3. The pressing die for bending sheet metal as claimed in claim 2, characterized in that: A sliding block (202f) is fixed to one side of the limiting column (202c), a sliding groove (202a-2) is provided in the clamping block (202a), and the sliding block (202f) slides in the sliding groove (202a-2).

4. The pressing die for bending sheet metal as claimed in claim 1, characterized in that: A fixed frame (204a) is fixed to one end of the rotating column (201f), a limiting rod (204b) is inserted into the fixed frame (204a), a limiting slot (203f-1) is provided on the movable rod (203f), and the limiting rod (204b) is engaged with the limiting slot (203f-1).

5. The pressing die for bending sheet metal as claimed in claim 4, characterized in that: A fixing plate (204c) is fixed to one end of the limiting rod (204b), a second spring (204d) is fixed to one side of the fixing plate (204c), and one end of the second spring (204d) is fixed to the fixing frame (204a) and sleeved on the outside of the limiting rod (204b).

6. The pressing die for bending sheet metal as claimed in claim 4 or 5, characterized in that: There are two limit grooves (203f-1), which are respectively located on two sides of the movable rod (203f).

7. The pressing die for bending sheet metal as claimed in claim 6, characterized in that: It also includes a bending component (100) that cooperates with the adjustment component (200), including a base (101), a support plate (102), a cylinder (103) and an upper mold (104), wherein the base (101) is located at the bottom of the fixing seat (201), the support plate (102) is fixed to the top of the base (101), the cylinder (103) is arranged on the top of the support plate (102), and the upper mold (104) is fixed to the output end of the cylinder (103).

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