Plate bending die

Abstract

The utility model relates to a plate bending die which is characterized in that a clamping seat with a through groove is arranged on a lower die plate, a bending block matched with the through groove is arranged on the lower die plate, the bending block is movably connected with the through groove, the edge of a workpiece is bent by the bending block during die pressing, and the bending block can have a certain rotation redundancy by enabling the bending block to be movably connected with the through groove, so that the plate is bent. And the bending speed of the edge in the bending process is reduced, and the situation that the bending part is damaged due to too fast bending is avoided. Besides, the upper die sliding block is arranged to comprise a right trapezoid block, a convex block and a column body, so that the sliding block is smoother and more stable in the process of sliding along an inclined plane opening of the upper die plate, the inclined plane design has a certain guiding effect, and the situation that a workpiece is damaged due to deviation from a preset position is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field especially is related to a plate bending die. BACKGROUND

[0002] The current plate edge design generally contains a bending part, aiming at simplifying the assembly and splicing process. For small batch demand, manual sheet metal processing is widely used due to its flexibility. However, in the face of high requirements of large-scale production and assembly line operation, more efficient processing methods become the inevitable choice, and die processing is the mainstream method.

[0003] In the die processing process, due to the inherent strength difference of the plate material, cracks and other defects are easy to occur in the bending part during forming, which is particularly prominent. The formation of cracks not only affects the appearance quality of the plate, but also may weaken its structural strength, resulting in a decline in overall performance.

[0004] In summary, how to effectively reduce the defects of the bending part in die processing has become a technical problem that needs to be solved. UTILITY MODEL CONTENT

[0005] The utility model discloses a plate bending die to overcome the defects of the prior art, to solve or partially solve the problem that the bending part is prone to defects.

[0006] The purpose of the utility model can be realized by the following technical scheme:

[0007] The utility model provides a plate bending die, comprising:

[0008] Upper die seat;

[0009] Upper die plate, be connected with the upper die seat, the upper die plate edge is equipped with inclined surface opening;

[0010] Upper die slide block, with the inclined surface opening matches, and with the upper die plate swing joint;

[0011] Lower release plate;

[0012] Lower clamping plate, be connected with the lower release plate, be equipped with recess on the lower clamping plate;

[0013] Lower die plate, with the recess matches, and with the lower clamping plate is connected;

[0014] Clamping seat, be connected with the lower die plate, the clamping seat is opened with through slot;

[0015] Bending block, with the through slot matches, and with the clamping seat swing joint;

[0016] Lower die seat, be connected with the lower clamping plate.

[0017] As a preferred technical solution, it further comprises:

[0018] An outer guide column connected with the upper die seat;

[0019] An outer guide sleeve matched with the outer guide column and connected with the lower die seat.

[0020] As a preferred technical solution, it further comprises:

[0021] An inner guide column connected with the lower clamping plate;

[0022] An inner guide sleeve matched with the inner guide column and connected with the lower clamping plate.

[0023] As a preferred technical solution, it further comprises:

[0024] An upper foot connected with the upper die seat;

[0025] An upper supporting plate connected with the upper foot;

[0026] A lower foot connected with the lower die seat;

[0027] A lower supporting plate connected with the lower foot.

[0028] As a preferred technical solution, it further comprises:

[0029] A top plate connected with the lower die seat.

[0030] As a preferred technical solution, the upper die sliding block comprises:

[0031] A trapezoidal block with a straight trapezoidal cross section;

[0032] A convex block connected with the inclined side of the trapezoidal block, the side of the convex block and the inclined side of the trapezoidal block form an acute angle;

[0033] A column connected with the convex block.

[0034] As a preferred technical solution, the angle of the acute angle is less than 80°.

[0035] As a preferred technical solution, the clamping seat comprises:

[0036] A first connecting plate connected with the lower die plate;

[0037] A second connecting plate connected with the first connecting plate, the included angle between the first connecting plate and the second connecting plate is obtuse, and a cylindrical through slot is formed in the connecting part of the first connecting plate and the second connecting plate.

[0038] As a preferred technical solution, the bending block comprises:

[0039] The shaft body is matched with the through slot.

[0040] The third connecting plate is connected with the shaft body.

[0041] The fourth connecting plate is connected with the shaft body, and the third connecting plate and the fourth connecting plate are in an acute angle.

[0042] As a preferred technical scheme, the utility model further comprises:

[0043] The upper die stopper is connected with the upper die base.

[0044] Compared with the prior art, the utility model has at least one of the following beneficial effects:

[0045] (1) reduce the probability of damage to the bending part: the utility model is provided with the clamping seat with the through slot on the lower die plate, and the bending block matched with the through slot is arranged, the bending block is movably connected with the through slot, the edge of the workpiece is bent by the bending block during the pressing, the bending block can have a certain rotation allowance by movably connecting the bending block with the through slot, the bending speed of the edge during the bending is reduced, and damage to the bending part caused by too fast bending is avoided.

[0046] (2) improve the smoothness of the pressing process: the upper die sliding block is arranged as the straight trapezoidal block, the convex block and the column body, so that the sliding block is more smooth and stable during the sliding along the inclined surface opening of the upper die plate, the inclined surface has a certain guiding effect, and damage to the workpiece caused by deviating from the preset position is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 It is the cross section schematic view of the plate bending die in the embodiment;

[0048] Figure 2 It is the top view of the plate bending die in the embodiment;

[0049] Figure 3 It is the schematic view of the upper die plate and the upper die sliding block in the embodiment;

[0050] Figure 4 It is the schematic view of the lower clamping plate in the embodiment;

[0051] Figure 5 It is the schematic view of the lower die plate in the embodiment;

[0052] Figure 6 It is the schematic view of the clamping seat in the embodiment;

[0053] Figure 7 It is the schematic view of the bending block in the embodiment,

[0054] Wherein, 1, the upper die holder, 2, the upper die plate, 3, the upper die slider, 4, the lower stripper plate, 5, the lower clamping plate, 6, the lower die plate, 7, the clamping seat, 8, the bending block, 9, the lower die holder, 10, the outer guide column, 11, the outer guide sleeve, 12, the inner guide column, 13, the inner guide sleeve, 14, the upper pad, 15, the upper supporting plate, 16, the lower pad, 17, the lower pad plate, 18, the top plate, 19, the trapezoidal block, 20, the protruding block, 21, the column body, 22, the first connecting plate, 23, the second connecting plate, 24, the shaft body, 25, the third connecting plate, 26, the fourth connecting plate, 27, the upper die stopper. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work shall belong to the protection scope of the utility model.

[0056] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship shown in the drawings or the orientation or position relationship usually placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation on the utility model. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0057] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0058] In view of the problems existing in the foregoing prior art, referring to Figure 1 and Figure 2 The embodiment provides a plate bending die, which mainly comprises an upper die part and a lower die part.

[0059] The upper die part comprises:

[0060] The upper die holder 1 is mainly used for guiding and clamping the force action of the outer guide column 10.

[0061] The outer guide pillar 10 is connected with the upper die base 1.

[0062] The upper die plate 2 is connected with the upper die base 1, and the edge of the upper die plate 2 is provided with a beveled opening. Specifically, the inclined direction is from the outer side of the plate to the inner side of the plate, and the area of the upper side surface of the plate is greater than that of the lower side surface.

[0063] The upper die slide block 3 is matched with the beveled opening and movably connected with the upper die plate 2.

[0064] Specifically, referring to Figure 3 The upper die slide block 3 comprises:

[0065] The trapezoidal block 19 has a straight trapezoidal cross section.

[0066] The protruding block 20 is connected with the inclined side of the trapezoidal block 19, the side surface of the protruding block 20 is at an acute angle with the inclined side of the trapezoidal block 19, and preferably the angle of the acute angle is less than 80°. The protruding block 20 can be clamped with the beveled opening on the upper die plate 2, so that the protruding block 20 can only move along the inclined direction of the opening.

[0067] The cylindrical body 21 is connected with the protruding block 20.

[0068] Specifically, referring to Figure 6 The clamping seat 7 is oppositely arranged on both sides of the lower die plate 6, and comprises:

[0069] The first connecting plate 22 is connected with the lower die plate 6 at the bottom.

[0070] The second connecting plate 23 is connected with the first connecting plate 22 towards the inner side of the mold, and the included angle between the first connecting plate 22 and the second connecting plate 23 is obtuse. The connecting part of the first connecting plate 22 and the second connecting plate 23 is provided with a cylindrical through slot.

[0071] Specifically, referring to Figure 7 The bending block 8 is a schematic view, and the bending block 8 comprises:

[0072] The shaft body 24 is matched with the through slot, and after the shaft body is installed on the through slot, it has a certain allowance to rotate along the through slot.

[0073] The third connecting plate 25 is connected with the shaft body 24, and the upper end of the third connecting plate 25 is smoothly processed.

[0074] The fourth connecting plate 26 is connected with the shaft body 24, and the third connecting plate 25 and the fourth connecting plate 26 are at an acute angle.

[0075] Preferably, the upper die part can further comprise:

[0076] The upper pad 14 is connected with the upper die holder 1, and is used for increasing the height of the mold, so that the closing height of the mold is within the stroke range of the punch;

[0077] The upper supporting plate 15 is connected with the upper pad 14, and is used for clamping the mold and the workbench of the press.

[0078] Preferably, the upper mold part can further include:

[0079] The upper die block 27 is connected with the upper die holder 1, and can block the side surface of the upper die plate 2 and the lower supporting plate 5 when the mold is closed, so as to ensure the accuracy of the mold closing.

[0080] The lower mold part includes:

[0081] The lower stripper plate 4 is mainly used for stripping the material;

[0082] The lower clamping plate 5 is connected with the lower stripper plate 4, and is used for clamping the punch and the guide column, as shown in Figure 4 , wherein (a) is a plan view, and (b) is an elevation view, the opposite two sides of the lower clamping plate 5 are provided with grooves;

[0083] The lower die plate 6 is matched with the grooves and is connected with the lower clamping plate 5, as shown in Figure 6 , and includes four lower die plates 6, wherein (a), (c), (e) and (g) are plan views of the four lower die plates 6, (b), (d), (e) and (h) are corresponding side views, (a) and (c) are two lower die plates 6 arranged in the grooves on the upper side of the lower clamping plate 5, and (e) and (g) are two lower die plates 6 arranged in the grooves on the lower side of the lower clamping plate 5;

[0084] The clamping seat 7 is connected with the lower die plate 6, and the clamping seat 7 is provided with a through slot;

[0085] The bending block 8 is matched with the through slot and is movably connected with the clamping seat 7;

[0086] The lower die holder 9 is connected with the lower clamping plate 5, and is mainly used for guiding and clamping the outer guide column and the upper and lower molds;

[0087] The outer guide sleeve 11 is matched with the outer guide column 10 and is connected with the lower die holder 9;

[0088] The inner guide column 12 is connected with the lower clamping plate 5;

[0089] The inner guide sleeve 13 is matched with the inner guide column 12 and is connected with the lower stripper plate 4.

[0090] Preferably, the lower mold part can further include:

[0091] The lower pad 16 is connected with the lower die holder 9;

[0092] The lower supporting plate 17 is connected with the lower pad 16.

[0093] Preferably, the lower mold portion may further include:

[0094] The top plate 18 is connected to the lower mold base 9.

[0095] The working principle of this mold is as follows: First, according to... Figure 1 and Figure 2 In this manner, each panel and component is installed in place, and the workpiece to be bent (such as...) is then placed... Figure 2 (As shown by the dashed line) The upper and lower mold parts are placed between the mold and the lower mold for pressing. During the pressing process, the upper mold slider 3 slides along the inclined opening of the upper mold plate 2. Through the limiting of the protrusion 20, it cooperates with the inner guide post 12 and the outer guide post 10 to ensure the accuracy of the pressing. The bending block 8 bends the edge of the workpiece. By setting a matching clamping seat 7, the pressure on the workpiece during the bending process will drive the bending block 8 to rotate until the bending block 8 abuts against the clamping seat 7. This alleviates the impact of excessive pressing speed on the quality of the bending part to a certain extent. By smoothing the upper end of the third connecting plate 25, the small contact area is avoided from applying excessive force to the bending part of the workpiece, thus ensuring the bending effect.

[0096] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A sheet metal bending die, characterized in that, include: Upper mold base (1); The upper template (2) is connected to the upper mold base (1), and the upper template (2) has a beveled opening on its edge; The upper mold slider (3) matches the inclined opening and is movably connected to the upper template (2); Lower ejector plate (4); The lower clamping plate (5) is connected to the lower release plate (4), and the lower clamping plate (5) is provided with a groove; The lower template (6) matches the groove and is connected to the lower clamping plate (5); Card holder (7) is connected to the lower template (6), and the card holder (7) has a through groove; The bending block (8) matches the through groove and is movably connected to the card holder (7); The lower mold base (9) is connected to the lower clamping plate (5).

2. The sheet metal bending die according to claim 1, characterized in that, Also includes: The outer guide post (10) is connected to the upper mold base (1); The outer guide sleeve (11) is matched with the outer guide post (10) and connected to the lower mold base (9).

3. The sheet metal bending die according to claim 1, characterized in that, Also includes: The inner guide post (12) is connected to the lower clamping plate (5); The inner guide sleeve (13) matches the inner guide post (12) and is connected to the lower release plate (4).

4. The sheet metal bending die according to claim 1, characterized in that, Also includes: Upper pad (14) is connected to the upper mold base (1); The upper support plate (15) is connected to the upper pad (14); The lower pad (16) is connected to the lower mold base (9); The lower support plate (17) is connected to the lower pad (16).

5. A sheet metal bending die according to claim 1, characterized in that, Also includes: The top plate (18) is connected to the lower mold base (9).

6. A sheet metal bending die according to claim 1, characterized in that, The upper mold slider (3) includes: Trapezoidal block (19), with a cross-section in the shape of a right trapezoid; A protrusion (20) is connected to the inclined side of the trapezoidal block (19), and the side of the protrusion (20) forms an acute angle with the inclined side of the trapezoidal block (19). The column (21) is connected to the protrusion (20).

7. A sheet metal bending die according to claim 6, characterized in that, The acute angle is less than 80°.

8. A sheet metal bending die according to claim 1, characterized in that, The card holder (7) includes: The first connecting plate (22) is connected to the lower template (6); The second connecting plate (23) is connected to the first connecting plate (22). The included angle between the first connecting plate (22) and the second connecting plate (23) is an obtuse angle. A cylindrical through groove is opened at the connection part between the first connecting plate (22) and the second connecting plate (23).

9. A sheet metal bending die according to claim 8, characterized in that, The bending block (8) includes: Shaft (24) that matches the through slot; The third connecting plate (25) is connected to the shaft (24); The fourth connecting plate (26) is connected to the shaft (24), and the third connecting plate (25) and the fourth connecting plate (26) form an acute angle.

10. A sheet metal bending die according to claim 1, characterized in that, Also includes: The upper mold stop (27) is connected to the upper mold base (1).

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