CN207447016U - A kind of square metal item bending mold - Google Patents

Abstract

The utility model is related to a kind of square metal item bending mold, feature is to include upper male mould, lower cavity die, wherein：The upper male mould is equipped with stamping surface, which includes two and be symmetrical set inclined surface, is connected between two inclined surface by a surface blending, and the bottom centre position of the stamping surface is equipped with raised line block；The raised line block includes bending section, which bends along the curved surface direction and set, and the bending section both ends of the raised line block further respectively have the tilting section for extending to inclined surface；The lower cavity die is equipped with the concave surface being adapted to the stamping surface.The utility model has the features such as simple in structure, design science, workpiece can be made once to be bent to form, polish process without the later stage, greatly increase production efficiency, reduce the production cost of enterprise, be conducive to the development of enterprise.

Description

A kind of square metal item bending mold

Technical field

The utility model is related to Sheet Metal Forming Technology processing technique fields, particularly a kind of square metal item bending mold.

Background technology

In the production being bent to form in metal strip, the stronger metal strip of some plasticity such as aluminum strip, copper bar are carrying out Often it is present with the problem of side is heaved during punching press, particularly cross-section lengths and width are all substantially in the square of 10mm to 40mm Shape metal strip is especially serious as being arisen a problem that when the workpiece bent carries out punching press, in punching press, due to metal strip It is upper male mould with stamping out corner part under the action of lower cavity die, because corner part stress in punching press is larger, workpiece Corner in the case where upper male mould and lower cavity die squeeze jointly, workpiece corners interior molecules can be made to be moved toward both sides, so that punching After the completion of pressing process, the two sides of workpiece corners can be respectively formed lug boss, in order to make the side of workpiece more smooth, punching press Later often also need to that the two sides of workpiece are carried out to polish process, so greatly reduce production efficiency, and then improve The cost of product is unfavorable for the long-run development of enterprise；Therefore, there is an urgent need for existing bending shaping dies is made improvements.

Utility model content

The purpose of this utility model is to provide a kind of square metal item bending mold, the mold have it is simple in structure, Design science can be such that workpiece is once bent to form, and polish process without the later stage, greatly increase production efficiency, reduce enterprise The production cost of industry, the advantages that being conducive to the development of enterprise.

What the technical solution of the utility model was realized in：A kind of square metal item bending mold, feature are Including upper male mould, lower cavity die, wherein：The upper male mould is equipped with stamping surface, which, which includes two and be symmetrical set, inclines Inclined-plane is connected by a surface blending between two inclined surface, and the bottom centre position of the stamping surface is equipped with raised line block； The raised line block includes bending section, which bends along the curved surface direction and set, the bending section both ends of the raised line block Further respectively have the tilting section for extending to inclined surface；The lower cavity die is equipped with the concave surface being adapted to the stamping surface.

Further, the thickness of the raised line block is 1-2mm, and the bottom width of the raised line block is 2-6mm.

The advantageous effects of the utility model：The utility model on the stamping surface of upper male mould by being equipped with a raised line Block so that in punching course, raised line block is to touch workpiece at first, and during raised line block stamped workpieces, the molecule of inside workpiece The trend converged at punching press can be formed under the punching press of raised line block, inside workpiece molecule can be to both sides when solving existing punching press The problem of movement, avoiding workpiece two sides in punching press can expand and the problem of lug boss occur so that the utility model exists After workpiece punch forming, it need not carry out polishing process again, greatly increase production efficiency, make the utility model that there is knot Structure is simple, design science, workpiece can be made once to be bent to form, and polishes process without the later stage, greatly increases production efficiency, drops The production cost of Di Liao enterprises, the advantages that being conducive to the development of enterprise.

Description of the drawings

Fig. 1 is decomposition texture schematic diagram when the utility model is used.

Fig. 2 is the structure diagram of the upper male mould of the utility model.

Fig. 3 is the structure diagram of the first scheme of the cross section of the raised line block of the utility model.

Fig. 4 is the structure diagram of the second scheme of the cross section of the raised line block of the utility model.

Fig. 5 is the structure diagram of the third scheme of the cross section of the raised line block of the utility model.

Reference sign：1- upper male moulds, 11- stamping surfaces, 111- inclined surface, 112- curved surfaces, 2- lower cavity dies, 21- concave surfaces, 3- raised lines block, 31- bending sections, 32- tilting sections, 33- are rectangular-shaped, 34- rectangular upper portions, 35- arch shape lower part, 36- triangles Lower part, 4- bottom plates, 5- workpiece.

Specific embodiment

As shown in Figure 1 and Figure 2, a kind of square metal item bending mold described in the utility model, including upper male mould 1, recessed Mould 2, the upper male mould 1 are equipped with stamping surface 11, which includes two and be symmetrical set inclined surface 111, this two It is connected between inclined surface 111 by 112 transition of a curved surface, the bottom centre position of the stamping surface 11 is equipped with raised line block 3, should Raised line block 3 be integrally machined with upper male mould 1 it is molding；The raised line block 3 includes bending section 31, and the bending section 31 is along the song The bending of 112 direction of face is set, and 31 both ends of bending section of the raised line block 3 further respectively have the tilting section for extending to inclined surface 111 32, the raised line block 3 makes the side at the entire turning of workpiece 5 during punching press all will not across curved surface 112, design in this way There is serious expansion protrusion problem；The lower cavity die 2 is equipped with the concave surface 21 being adapted to the stamping surface 11, should in punching press The concave surface 21 of lower cavity die 2 and the cooperation of stamping surface 11 of the upper male mould 1 make 5 bent into shape of workpiece.The utility model is in actual reality It is to be carried out by hydraulic press when applying, the upper male mould 1 is mounted on the power output end of hydraulic press, and the bottom surface of lower cavity die 2 On be also equipped with bottom plate 4, to workpiece 5 carry out punching course in, raised line block 3 is to touch workpiece 5 at first, and raised line block 3 rushes When pressing workpiece 5, the molecule inside workpiece 5 can form the trend converged at punching press under the punching press of raised line block 3, solve existing The problem of 5 interior molecules of workpiece can be moved to both sides during punching press, avoiding the two sides in punching press of workpiece 5 can expand and occur convex The problem of portion of rising so that the utility model need not be carried out polishing process, greatly improved again after by 5 punch forming of workpiece Production efficiency makes the utility model have simple in structure, design science, so that the workpiece 5 is once bent to form, is ground without the later stage Flat process, greatly increases production efficiency, the advantages that reducing the production cost of enterprise, be conducive to the development of enterprise.

Further, in order to make the structure of the raised line block 3 of the utility model more reasonable, as shown in figure 3, in the present embodiment Raised line block 3 thickness C1 for 2mm, the bottom width C2 of the raised line block 3 is 4mm.

The utility model can also use following three kinds of cross sections not according to the difference of 5 thickness of workpiece and width to be bent Same raised line block 3：

One kind is, when the width and thickness of workpiece 5 are all when 10mm to 20mm is in the range of this, as shown in figure 3, described convex The cross section of stick 3 becomes rectangular-shaped 33.

Two kinds are, when the width and thickness of workpiece 5 are all when 20mm to 30mm is in the range of this, as shown in figure 4, described convex The cross section of stick 3 is made of rectangular upper portion 34 and arch shape lower part 35.

Three kinds are, when the width and thickness of workpiece 5 are all when 30mm to 40mm is in the range of this, as shown in figure 5, described convex The cross section of stick 3 is made of rectangular upper portion 34 and triangle lower part 36.

Claims (6)

1. a kind of square metal item bending mold, it is characterised in that：Including upper male mould, lower cavity die, wherein：

The upper male mould is equipped with stamping surface, which includes two and be symmetrical set inclined surface, two inclined surface it Between connected by a surface blending, the bottom centre position of the stamping surface is equipped with raised line block；

The raised line block includes bending section, which bends along the curved surface direction and set, the bending section of the raised line block Both ends further respectively have the tilting section for extending to inclined surface；

The lower cavity die is equipped with the concave surface being adapted to the stamping surface.

2. square metal item bending mold according to claim 1, it is characterised in that：The thickness C1 of the raised line block is 1- 2mm, the bottom width C2 of the raised line block is 2-6mm.

3. square metal item bending mold according to claim 1, it is characterised in that：It makes the cross section of the raised line block To be rectangular-shaped.

4. square metal item bending mold according to claim 1, it is characterised in that：The cross section of the raised line block is by square Shape top is formed with arch shape lower part.

5. square metal item bending mold according to claim 1, it is characterised in that：The cross section of the raised line block is by square Shape top is formed with triangle lower part.

6. square metal item bending mold according to claim 1, it is characterised in that：Also pacify on the bottom surface of the lower cavity die Equipped with bottom plate.