A size-adjustable press brake die

Abstract

The utility model belongs to mould technical field especially, it is adjustable size's press bending die, including female die, and with female die cooperation is used for workpiece bending male die, the female die core in female die is installed and is used for adjusting workpiece bending radius several female die gaskets, the male die core installation is used for adjusting workpiece bending radius several male die gaskets, and female die gasket and male die gasket are used for cooperation and are bent to workpiece, the both sides of workpiece two wings length adjustment interval adjusting part is arranged in the upper end of female die, through the female die gasket that female die core in female die installed and the male die gasket that male die core installation is used for, thereby the convenient according to installation female die gasket and male die gasket quantity adjustment press bending die's mould core size reaches realizes the purpose of adjusting workpiece bending, to bending radius and bending thickness adjustment when realizing the purpose of adjusting workpiece two wings length through the left and right of interval adjusting part and thereby realizes the purpose of adjusting workpiece two wings length.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to an adjustable-size bending mold. Background Technology

[0002] A mold is a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to shape objects; this tool is composed of various parts, and different molds are composed of different parts. A bending die is a type of mold. A bending die is a punch used to bend a blank or semi-finished part into a specific shape. A bending die consists of two parts: a punch and a die.

[0003] In heavy-duty scraper conveyors, there are many "U"-shaped workpieces (such as hooks). Existing "U"-shaped workpieces are often formed by bending rectangular plates. However, the bending dies are of fixed size. Since the size of "U"-shaped workpieces is different, bending dies of different specifications are required to bend the workpieces, which increases the number of bending dies and causes the production cost of bending dies to increase.

[0004] Based on this, an adjustable-size bending die was designed. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing an adjustable-size bending die, the specific technical solution of which is as follows:

[0006] An adjustable-size bending die includes a die cavity and a punch that cooperates with the die cavity for bending a workpiece. The die cavity core is equipped with several die cavity shims for adjusting the bending radius of the workpiece. The punch core is equipped with several punch shims for adjusting the bending radius of the workpiece. The die cavity shims and punch shims cooperate to bend the workpiece. The upper end of the die cavity has two sides with spacing adjustment components for adjusting the length of the workpiece's two wings. The die cavity core has a lifting component, and the die cavity shims have a top hole in the middle that cooperates with the lifting component.

[0007] Preferably, the spacing adjustment component includes two baffles symmetrically fixed on both sides of the upper end of the die, an electric push rod is fixed on the inner surface of the baffle, a push plate is fixed on the telescopic end of the electric push rod, a guide rod is fixed on the outer surface of the push plate, and the guide rod is movably installed in a hole opened on the surface of the baffle.

[0008] Preferably, the lifting member includes a movable cavity opened at the bottom of the die cavity, a push rod is movably installed in the movable cavity, and the upper end of the push rod passes through the die cavity core and is inserted into the top hole opened in the middle of the die cavity gasket. A spring fixed to the lower end of the push rod is installed in the movable cavity.

[0009] Preferably, both the concave die gasket and the convex die gasket are U-shaped structures, and the upper end of the ejector pin is provided with an arc-shaped groove that matches the concave die gasket.

[0010] Preferably, the inner surface of the concave die pad and the inner surface of the convex die pad are integrally formed with a limiting protrusion. The concave die and the convex die core, as well as the three concave die pads located on the inner side and the three convex die pads located on the inner side, are all provided with limiting grooves, and the limiting protrusions and limiting grooves are compatible.

[0011] Preferably, the end of the punch gasket and the upper part of the punch are provided with limit insertion holes, and a magnetic column that is magnetically fixed to the punch is installed in the limit insertion hole. A retaining plate is fixed on the side surface of the die gasket, and the retaining plate is fixed to the outside of the die by positioning bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The die core of the bending die is adjusted by using die shims installed inside the die core and punch shims installed inside the punch core. This allows for adjustment of the core size of the bending die based on the number of die shims and punch shims installed, thereby achieving the purpose of adjusting the bending radius and bending thickness when bending the workpiece. The spacing adjustment component at the upper end of the die allows for adjustment of the length of the two wings of the workpiece by moving the spacing adjustment component to the left and right. The lifting component inside the die core is installed with its upper end installed in the top hole opened in the middle of the die shim, which allows the lifting component to lift the bent workpiece, facilitating the demolding of the workpiece.

[0014] 2. The spacing adjustment component, consisting of a baffle, an electric push rod, a push plate, and a guide rod, facilitates the adjustment of the workpiece's position on the upper end of the die when the electric push rod moves with the push plate. This allows for the adjustment of the positions of the two push plates and the lengths of the left and right wings of the workpiece. The guide rod, fixed to the surface of the push plate, is installed in a hole on the surface of the baffle, thereby increasing the stability of the push plate during movement.

[0015] 3. A lifting component consisting of a movable cavity, a push rod, and a spring is used. The push rod is movably installed inside the movable cavity via the spring, and the upper end of the push rod is located in the top hole opened in the middle of the die shim. This allows the upper end of the push rod to lift the bent workpiece in the top hole under the action of the spring. At the same time, the arc-shaped groove set at the upper end of the push rod is adapted to the die shim, so that when the punch moves down to bend the workpiece, the push rod supports the bottom of the workpiece.

[0016] 4. By setting the limiting protrusion and limiting groove, the die gasket is limited by the limiting protrusion and limiting groove when it is installed in the die core. The clamping plates fixed on both sides of the die gasket are fixed to the outside of the die by positioning bolts, so as to fix the die gasket in the die core. When the punch gasket is installed in the punch core, it is limited by the limiting protrusion and limiting groove. At the same time, magnetic pillars are installed in the limiting holes opened in the punch and punch gasket, so as to fix the punch gasket outside the punch core. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a half-section structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the half-section structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the component structure in this utility model;

[0021] Figure 5 for Figure 1 A magnified structural diagram of point A in the middle.

[0022] Reference numerals: 1. Die; 2. Punch; 3. Movable cavity; 4. Ejector pin; 5. Spring; 6. Die gasket; 7. Punch gasket; 8. Limiting insertion hole; 9. Magnetic column; 10. Limiting protrusion; 11. Limiting groove; 12. Baffle; 13. Electric push rod; 14. Push plate; 15. Guide rod; 16. Top hole; 17. Clamping plate; 18. Workpiece; 19. Positioning bolt. Detailed Implementation

[0023] The technical solution of this utility model will now be described with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1-5 This embodiment provides the following technical solution: an adjustable-size bending die, including a die 1 and a punch 2 that cooperates with the die 1 for bending a workpiece 18. The die core of the die 1 is equipped with a plurality of die shims 6 for adjusting the bending radius of the workpiece 18. The punch core of the punch 2 is equipped with a plurality of punch shims 7 for adjusting the bending radius of the workpiece 18. The die shims 6 and the punch shims 7 are used to cooperate to bend the workpiece 18. The upper end of the die 1 is provided with spacing adjustment components for adjusting the length of the two wings of the workpiece 18 on both sides. The die core of the die 1 is provided with a lifting component. The middle part of the die shim 6 is provided with a top hole 16 that cooperates with the lifting component.

[0025] In this embodiment, the die core size of the bending die is adjusted according to the number of die cores 6 and 7 installed in the die core of the die 1 and the punch core of the punch 2, so as to achieve the purpose of adjusting the bending radius and bending thickness of the workpiece 18 when bending. The spacing adjustment component provided at the upper end of the die 1 can adjust the length of the two wings of the workpiece 18 by moving the spacing adjustment component to the left and right. The lifting component provided in the die core of the die 1 has its upper end installed in the top hole 16 opened in the middle of the die core 6, so as to facilitate the lifting component to lift the bent workpiece 18 and facilitate the demolding of the workpiece 18.

[0026] Specifically, the spacing adjustment component includes two baffles 12 symmetrically fixed on both sides of the upper end of the die 1. An electric push rod 13 is fixed on the inner surface of the baffle 12. A push plate 14 is fixed on the telescopic end of the electric push rod 13. A guide rod 15 is fixed on the outer surface of the push plate 14, and the guide rod 15 is movably installed in a hole opened on the surface of the baffle 12.

[0027] In this embodiment, a spacing adjustment component consisting of a baffle 12, an electric push rod 13, a push plate 14, and a guide rod 15 is used to adjust the position of the workpiece 18 when it is placed on the upper end of the die 1, so as to adjust the position of the two push plates 14 and the length of the left and right wings of the workpiece 18. The guide rod 15, which is fixed on the surface of the push plate 14, is installed in the hole opened on the surface of the baffle 12, thereby increasing the stability of the push plate 14 when it moves.

[0028] Specifically, the lifting component includes a movable cavity 3 at the bottom of the die cavity 1, a push rod 4 is movably installed in the movable cavity 3, and the upper end of the push rod 4 passes through the die cavity core of the die cavity 1 and is inserted into the top hole 16 in the middle of the die cavity pad 6. A spring 5 is installed in the movable cavity 3 and fixed to the lower end of the push rod 4. The die cavity pad 6 and the punch pad 7 are both "U" shaped structures, and the upper end of the push rod 4 is provided with an arc-shaped groove that matches the die cavity pad 6.

[0029] In this embodiment, a lifting member consisting of a movable cavity 3, a push rod 4, and a spring 5 is used. The push rod 4 is movably installed inside the movable cavity 3 via the spring 5, and the upper end of the push rod 4 is located in the top hole 16 opened in the middle of the die pad 6. This allows the upper end of the push rod 4 to lift the bent workpiece 18 in the top hole 16 under the action of the spring 5. At the same time, the arc-shaped groove provided at the upper end of the push rod 4 is adapted to the die pad 6, so that when the punch 1 moves down to bend the workpiece 18, the push rod 4 supports the bottom of the workpiece 18.

[0030] Specifically, the inner surface of the die pad 6 and the inner surface of the punch pad 7 are integrally formed with a limiting protrusion 10. The die cores of the die 1 and the punch 2, as well as the three die pads 6 and the three punch pads 7 located on the inner side, are all provided with limiting grooves 11. The limiting protrusion 10 and the limiting grooves 11 are compatible. The end of the punch pad 7 and the upper part of the punch 2 are provided with limiting insertion holes 8. Magnetic posts 9 that are magnetically fixed to the punch 2 are installed in the limiting insertion holes 8. A retaining plate 17 is fixed on the side surface of the die pad 6, and the retaining plate 17 is fixed on the outside of the die 1 by positioning bolts 19.

[0031] In this embodiment, the limiting protrusion 10 and limiting groove 11 are provided so that when the die pad 6 is installed in the die core of the die 1, it is limited by the limiting protrusion 10 and limiting groove 11. The clamping plates 17 fixed on both sides of the die pad 6 are fixed to the outside of the die 1 by positioning bolts 19, so as to fix the die pad 6 in the die core of the die 1. When the punch pad 7 is installed in the punch core of the punch 2, it is limited by the limiting protrusion 10 and limiting groove 11. At the same time, magnetic posts 9 are installed in the limiting insertion holes 8 opened in the punch 2 and the punch pad 7, so as to fix the punch pad 7 outside the punch core of the punch 2.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable-size bending die, comprising a die cavity (1) and a punch (2) cooperating with the die cavity (1) for bending a workpiece (18), characterized in that: The die core of the die cavity (1) is equipped with several die shims (6) for adjusting the bending radius of the workpiece (18). The core of the punch (2) is equipped with several punch shims (7) for adjusting the bending radius of the workpiece (18). The die shims (6) and the punch shims (7) are used to cooperate to bend the workpiece (18). The upper end of the die cavity (1) is provided with spacing adjustment components for adjusting the length of the two wings of the workpiece (18). The die core of the die cavity (1) is provided with a lifting component. The middle part of the die shim (6) is provided with a top hole (16) that cooperates with the lifting component.

2. A size adjustable press brake die as defined in claim 1, wherein: The spacing adjustment component includes two baffles (12) symmetrically fixed on both sides of the upper end of the die (1). An electric push rod (13) is fixed on the inner surface of the baffle (12). A push plate (14) is fixed on the telescopic end of the electric push rod (13). A guide rod (15) is fixed on the outer surface of the push plate (14), and the guide rod (15) is movably installed in a hole opened on the surface of the baffle (12).

3. A size adjustable press brake die as defined in claim 1, wherein: The lifting component includes a movable cavity (3) opened at the bottom of the die (1), a push rod (4) is movably installed in the movable cavity (3), and the upper end of the push rod (4) passes through the die core of the die (1) and is inserted into the top hole (16) opened in the middle of the die pad (6). A spring (5) fixed to the lower end of the push rod (4) is installed in the movable cavity (3).

4. A size adjustable press brake die as defined in claim 3, wherein: Both the concave die pad (6) and the convex die pad (7) are U-shaped structures, and the upper end of the ejector rod (4) is provided with an arc-shaped groove that matches the concave die pad (6).

5. A size adjustable press brake die as defined in claim 4, wherein: The inner surface of the concave die pad (6) and the inner surface of the convex die pad (7) are integrally formed with a limiting protrusion (10). The core of the concave die (1) and the convex die (2) and the three concave die pads (6) located on the inner side and the three convex die pads (7) located on the inner side are all provided with limiting grooves (11), and the limiting protrusions (10) and the limiting grooves (11) are compatible.

6. A size adjustable press brake die as defined in claim 5, wherein: The end of the punch gasket (7) and the upper part of the punch (2) are provided with a limiting insertion hole (8). A magnetic column (9) that is magnetically fixed to the punch (2) is installed in the limiting insertion hole (8). A clamping plate (17) is fixed on the side surface of the die gasket (6), and the clamping plate (17) is fixed to the outside of the die (1) by a positioning bolt (19).

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