Aluminum profile bending forming traceless tool

Abstract

The utility model relates to the technical field of bending forming of non-ferrous metal profiles, in particular to a traceless tool for bending forming of aluminum profiles, and aims to solve the problems that an existing traceless bending precision die is weak in compression grade, and the rejection rate of parts is increased due to the fact that indentations appear when products are bent. The upper and lower heads are used for stamping and bending workpieces; modules are arranged at the upper end of the base in a bilateral symmetry mode and are in a p shape, arc sections of the modules are matched with grooves in the top of the base, a first spring hook is fixedly connected below the portion, located on the side of the base, of each module, a second spring hook is fixedly connected to each side of the base, and each first spring hook is connected with the adjacent second spring hook through a tension spring. According to the scheme, a formed product is free of indentation at the bent position, a bent workpiece is bent in the moving direction of the module in the bending process, the bent workpiece is softer in the bending process, the part is prevented from generating the indentation, and marks and scratches on the surface of the part are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bending and forming of non-ferrous metal profiles, and particularly relates to a tooling for seamless bending and forming of aluminum profiles. Background Art

[0002] In the process of machining some parts, we often need to bend some parts at a certain angle, and this work is usually completed by using a seamless bending precision die. Using a seamless bending precision die can quickly bend the parts into the shape we want, quickly and with remarkable effect. Bending parts with a seamless bending precision die can avoid the appearance of marks and scratches on the surface of the parts, reduce the scrap rate of the parts, thus saving production costs. Compared with manual bending of parts, it greatly improves the production efficiency of parts and reduces the labor intensity of workers.

[0003] For a certain aluminum profile bending and forming product of our company, the quality requirement for the surface crease is relatively high. To meet the product requirements of seamless bending of this profile, the following problems are urgently needed:

[0004] The existing seamless bending precision die has a weak pressure resistance level, and it is easy to cause damage to the seamless bending precision die and parts during the processing process, shortening the service life of the seamless bending precision die. The appearance of indentation during product bending increases the scrap rate of parts. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems that the existing seamless bending precision die has a weak pressure resistance level, it is easy to cause damage to the seamless bending precision die and parts during the processing process, shortening the service life of the seamless bending precision die, and the appearance of indentation during product bending increases the scrap rate of parts, and to propose a tooling for seamless bending and forming of aluminum profiles.

[0006] The utility model is realized through the following scheme:

[0007] A tooling for seamless bending and forming of aluminum profiles, which comprises an upper pressure head and a seamless die.

[0008] The top of the seamless die is used to place the bending workpiece, and the upper and lower heads are used to stamp and bend the workpiece.

[0009] The seamless die comprises a base, a first spring hook, a tension spring, a second spring hook and two modules.

[0010] The modules are symmetrically arranged on the left and right at the upper end of the base. The modules are in a "p" shape. The arc section of the module is matched with the groove at the top of the base. A first spring hook is fixedly connected below the part of each module on the side of the base. A second spring hook is fixedly connected to each side of the base. Each first spring hook is connected to the adjacent second spring hook through a tension spring.

[0011] Furthermore, a tooling for forming a bend in an aluminum profile without marks, wherein the tension spring is arranged vertically.

[0012] Still further, a tooling for forming a bend in an aluminum profile without marks, wherein the tail of the first spring hook is threadedly connected to the module.

[0013] Furthermore, a tooling for forming a bend in an aluminum profile without marks, wherein the tail of the second spring hook is threadedly connected to the base.

[0014] Still further, a tooling for forming a bend in an aluminum profile without marks, wherein a baffle is fixedly connected to the front end face and the rear end face of the base respectively.

[0015] Furthermore, a tooling for forming a bend in an aluminum profile without marks, wherein each baffle is fixed to the base by two symmetrically arranged screws.

[0016] Beneficial effects:

[0017] During the working process of the tooling for forming a bend in an aluminum profile without marks of the present utility model, as the upper pressing head presses downwards, the markless die moves from Figure 2 a horizontal state to Figure 5 a bent state. Throughout the bending process, the straight edge of the module always contacts the bent workpiece and moves along with the bending motion. There are no indentations at the bending position of the formed product. The bent workpiece bends along with the movement direction of the module during the bending process, and is more gentle during bending, preventing the part from generating creases and avoiding imprints and scratches on the surface of the part. Description of the drawings

[0018] Figure 1 is a schematic diagram of the tooling for forming a bend in an aluminum profile without marks of the present utility model;

[0019] Figure 2 is a main sectional view of the markless die of the present utility model;

[0020] Figure 3 is a top view of the markless die of the present utility model;

[0021] Figure 4 is a left sectional view of the markless die of the present utility model;

[0022] Figure 5 is a schematic diagram of the maximum torsional angle of the module of the markless die of the present utility model.

[0023] In the figure: 1, upper pressing head; 2, bent workpiece; 3, markless die; 3-1, base; 3-2, module; 3-3, baffle; 3-4, first spring hook; 3-5, tension spring; 3-6, screw; 3-7, second spring hook; 4, fixed gauge. Specific embodiments

[0024] Embodiment 1: An aluminum profile bending and forming tool without marks, which includes an upper pressing head 1 and a markless tool 3;

[0025] The top of the markless tool 3 is used to place the bending workpiece 2, and the upper and lower head 1 is used to press the bending workpiece 2;

[0026] The markless tool 3 includes a base 3-1, a first spring hook 3-4, a tension spring 3-5, a second spring hook 3-7 and two modules 3-2;

[0027] The modules 3-2 are symmetrically arranged on the left and right sides of the upper end of the base 3-1. The modules 3-2 are in the shape of the letter 'p'. The arc section of the module 3-2 is matched with the groove on the top of the base 3-1. A first spring hook 3-4 is fixedly connected to the lower part of each module 3-2 on the side of the base 3-1. A second spring hook 3-7 is fixedly connected to each side of the base 3-1. Each first spring hook 3-4 is connected to the adjacent second spring hook 3-7 through a tension spring 3-5.

[0028] In this embodiment:

[0029] During operation, the upper pressing head is connected to the press, the markless tool is fixed on the workbench surface of the press, the bending workpiece is placed between the upper pressing head and the markless tool, and the size is fixed by a fixed scale. During operation, the upper pressing head presses down. The two modules in the markless tool are under the pressure in the middle of the upper pressing head. The modules move in a circular motion along the center of the circle, supporting and bending both sides of the bending workpiece. As the upper pressing head presses down, the markless tool changes from Figure 2 a horizontal state to Figure 5 a bent state after bending. During the entire bending process, the straight edges of the modules are always in contact with the bending workpiece and move along with the bending movement, and there are no indentations at the bending place of the formed product. The first spring hook, the second spring hook and the tension spring restore the markless tool from the bent state to the horizontal state after the bending work is completed.

[0030] Other embodiments are the same as Embodiment 1.

[0031] Embodiment 2: An aluminum profile bending and forming tool without marks, wherein the tension spring 3-5 is vertically arranged.

[0032] In this embodiment: The tension spring is vertically arranged. In the initial state, the upper end surface of the module is in a horizontal state and the tension spring is in a vertical state. After the bending workpiece is placed on the two modules, the upper pressing head presses down to hold the bending workpiece and start running. The arc surface of the module slides along the groove on the top of the base. The adjacent part of the bending workpiece and the module always closely adheres to the module. As the two modules move, the bending workpiece is bent, and the tension spring is stressed and unfolds. When the upper pressing head runs upward, the tension spring can continuously contract and drive the arc section of the module to slide along the groove on the reverse side of the base. Finally, the module resets and pushes out the processed bending workpiece.

[0033] Other embodiments are the same as the first specific embodiment.

[0034] Specific Embodiment Three: An aluminum profile bending and forming tooling without marks. The tail of the first spring hook 3-4 is threadedly connected to the module 3-2.

[0035] In this embodiment: The tail of the first spring hook is threadedly connected to the module. The threaded connection method is conducive to the disassembly and replacement of the second spring hook.

[0036] Other embodiments are the same as the first specific embodiment.

[0037] Specific Embodiment Four: An aluminum profile bending and forming tooling without marks. The tail of the second spring hook 3-7 is threadedly connected to the base 3-1.

[0038] In this embodiment: The tail of the second spring hook is threadedly connected to the base. The threaded connection method is conducive to the disassembly and replacement of the second spring hook.

[0039] Other embodiments are the same as the first specific embodiment.

[0040] Specific Embodiment Five: An aluminum profile bending and forming tooling without marks. A baffle 3-3 is fixedly connected to the front end face and the rear end face of the base 3-1 respectively.

[0041] In this embodiment: A baffle is fixedly connected to the front end face and the rear end face of the base respectively. The baffle is used to limit the position of the module, prevent the module from moving back and forth, ensure that the end faces of the two modules can correspond to the two end faces of the bent workpiece, and avoid the bent workpiece from not being aligned with the module, resulting in indentation on the bent workpiece.

[0042] Other embodiments are the same as the first specific embodiment.

[0043] Specific Embodiment Six: An aluminum profile bending and forming tooling without marks. Each baffle 3-3 is fixed to the base 3-1 by two symmetrically arranged screws 3-6.

[0044] In this embodiment: The baffle is fixedly connected by screws, with a firm connection and easy disassembly, facilitating subsequent maintenance work.

[0045] Other embodiments are the same as the fifth specific embodiment.

Claims

1. An aluminum profile bending and forming tooling without marks, characterized in that: It includes an upper punch (1) and a traceless mold (3); The top of the traceless mold (3) is used to place the bent workpiece (2), and the upper punch (1) is used to stamp the bent workpiece (2); The traceless mold (3) includes a base (3-1), a first spring hook (3-4), a tension spring (3-5), a second spring hook (3-7) and two modules (3-2); The modules (3-2) are symmetrically arranged on the left and right at the upper end of the base (3-1). The modules (3-2) are in the shape of the letter "p". The arc section of the module (3-2) is matched with the top groove of the base (3-1). The part of each module (3-2) located on the side of the base (3-1) is fixedly connected with a first spring hook (3-4) below. A second spring hook (3-7) is fixedly connected to each side of the base (3-1). Each first spring hook (3-4) is connected to the adjacent second spring hook (3-7) through a tension spring (3-5).

2. The seamless tooling for bending and forming aluminum profiles according to claim 1, wherein: The tension spring (3-5) is arranged vertically.

3. The seamless tooling for bending and forming aluminum profiles according to claim 1, characterized in that: The tail of the first spring hook (3-4) is threadedly connected to the module (3-2).

4. The seamless tooling for bending and forming aluminum profiles according to claim 1, characterized in that: The tail of the second spring hook (3-7) is threadedly connected to the base (3-1).

5. A seamless tooling for bending and forming aluminum profiles according to claim 1, characterized in that: A baffle (3-3) is fixedly connected to the front end face and the rear end face of the base (3-1) respectively.

6. The seamless tooling for bending and forming aluminum profiles according to claim 5, characterized in that: Each baffle (3-3) is fixed to the base (3-1) by two symmetrically arranged screws (3-6).

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