CN204602963U - A kind of special-shaped mould of die-cut circular arc - Google Patents

Abstract

The utility model embodiment discloses a kind of special-shaped mould of die-cut circular arc, low for solving roundlet mould Machining Arc efficiency, the technical problem that mould easily damages.In the utility model embodiment, a kind of special-shaped mould of die-cut circular arc, comprises patrix, red needle and counterdie, and the cross section of described red needle is fan ring.

Description

A kind of special-shaped mould of die-cut circular arc

Technical field

The utility model relates to Design of Dies field, particularly relates to a kind of special-shaped mould of die-cut circular arc.

Background technology

Along with numerical control press application popularization commercially, compete increasing, each enterprise all wishes production cost to drop to minimum, thus generates profit increase.Under the condition that material, equipment, labour cost are identical, the mould that working (machining) efficiency is higher seems particular importance.

At present, the mode that in existing technique, the die-cut general employing roundlet mould step punching of circular arc is nibbled realizes, but working (machining) efficiency is low, and mould easily damages.

Utility model content

The utility model embodiment discloses a kind of special-shaped mould of die-cut circular arc, low for solving roundlet mould Machining Arc efficiency, the technical problem that mould easily damages.

The special-shaped mould of a kind of die-cut circular arc that the utility model embodiment provides, comprises patrix, red needle and counterdie, and the cross section of described red needle is fan ring.

Alternatively,

Described counterdie is provided with the groove mated with described red needle.

As can be seen from the above technical solutions, the utility model embodiment has the following advantages:

In the utility model embodiment, a kind of special-shaped mould of die-cut circular arc, comprises patrix, red needle and counterdie, and the cross section of described red needle is fan ring.Thus this special-shaped mould can process the circular arc mated with described fan ring easily under the drive of numerical control press, and working (machining) efficiency is high, and die-cut number of times is few, and mould is not fragile.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the special-shaped mould of a kind of die-cut circular arc in the utility model embodiment;

Fig. 2 is a kind of red needle cross sectional representation of special-shaped mould of die-cut circular arc;

Fig. 3 is the machining sketch chart of the special-shaped mould of a kind of die-cut circular arc in the utility model embodiment.

Detailed description of the invention

The utility model embodiment discloses a kind of special-shaped mould of die-cut circular arc, can solve roundlet mould Machining Arc efficiency low, the technical problem that mould easily damages.

Refer to Fig. 1, a kind of special-shaped mould of die-cut circular arc in the utility model embodiment, comprises patrix 1, red needle 2 and counterdie 3, and the cross section of described red needle 2 is fan ring.As shown in Figure 2, the cutting edge of this red needle 2 is made up of the first circular arc 21, first line segment 22, second circular arc 23 and the second line segment 24 successively.Wherein the place circle of the first circular arc and the second circular arc is concentric circles, and the arc radius of the first circular arc is greater than the arc radius of the second circular arc.This first line segment and the second line segment isometric.The size of this fan ring can be arranged according to the station of numerical control press, and the size of the first line segment and the second line segment can design according to the requirement of strength of described red needle 2.

Refer to Fig. 3, adding man-hour, the station that this special-shaped mould is positioned over numerical control press works, needs the fan ring cross section of the pore radius of die-cut product and this special-shaped mould more close, when its step is rushed, required moving step pitch just can be larger, and process time is then shorter.

Preferably, described counterdie 3 is provided with the groove mated with described red needle 2.

In the present embodiment, a kind of special-shaped mould of die-cut circular arc has the following advantages:

1, walk with existing roundlet mould compared with the processing mode rushing and nibble, can save the man-hour of about 3 times, efficiency is high.The full circle such as using roundlet stamping to cut a diameter 200mm needs 160 Secondary Shocks, only need 53 Secondary Shocks with this special-shaped mould now, eliminated for 113 Secondary Shocks process times, namely whole product processing time is shortened, if under the condition that processing charges price is constant, save man-hour and save processing cost exactly, increase profit, output is also improved.

2, this special-shaped mould adopts fan ring-shaped, and intensity is high, not fragile.This special-shaped mould is more durable than roundlet mould, because the size of mould is larger, intensity is higher, and repeatedly repeated impacts is also difficult to damage.In addition, the cutting edge girth of this red needle 2 is than roundlet mould several times greatly, and stress is not easily concentrated, perfect heat-dissipating.

Above the special-shaped mould of a kind of die-cut circular arc provided by the utility model is described in detail, for one of ordinary skill in the art, according to the thought of the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (2)

1. a special-shaped mould for die-cut circular arc, comprises patrix, red needle and counterdie, it is characterized in that, the cross section of described red needle is fan ring.

2. special-shaped mould according to claim 1, is characterized in that,

Described counterdie is provided with the groove mated with described red needle.