CN205463711U - A die-cast steel sheet thermal shaping fixture - Google Patents

Abstract

The utility model discloses a hot plastic tool of die-casting steel sheet, it includes the last mould and the lower mould of corresponding setting, the bottom of going up the mould is equipped with the arc lug, the top of lower mould corresponds the arc lug is equipped with the arc recess, and outstanding this arc recess bottom is equipped with a plurality of locating pins in this arc recess, in correspond on the arc lug the locating pin is equipped with dodges the hole. The utility model has the advantages of simple and reasonable structure, design benefit through the cooperation of arc lug with the arc recess, can proofread and correct the die-casting steel sheet well, and it is low to warp the answer after proofreading, and die-casting steel sheet yield after proofreading is high, can satisfy the demand of using.

Description

A die-cast steel sheet thermal shaping fixture

technical field

The utility model relates to the field of die-casting steel sheet production, in particular to a die-casting steel sheet thermal shaping fixture.

Background technique

In the prior art, the die-casting steel sheet is usually deformed during the molding and ejection process, while the die-casting flat steel sheet is widely used in modern production, for example, it is applied to the magnesium-aluminum alloy middle frame product of the mobile phone. Due to the high flatness requirements of the plane assembly surface of the magnesium-aluminum alloy middle frame of the die-casting flat steel sheet, it is usually necessary to reshape the die-casting steel sheet after die-casting and ejection. The conventional shaping method is through the upper mold, The lower die flattens it, but the existing upper die and lower die are both planar structures, and the die-casting steel sheet deforms and recovers greatly after conventional shaping, making it difficult to use. That is, it is impossible to produce effective and high-yield die-cast steel sheets through conventional plane shaping fixtures.

A heat shaping fixture for die-casting steel sheets has become a demand.

Utility model content

The purpose of this utility model is to solve the above problems, to provide a die-casting steel sheet thermal shaping fixture, which has a simple and reasonable structure and ingenious design. Through the cooperation of the arc-shaped protrusion and the arc-shaped groove, it can well After adjustment, the deformation recovery is low, and the yield of the adjusted die-casting steel sheet is high, which can meet the needs of use.

The technical scheme that the utility model adopts for realizing the above object is:

A die-casting steel sheet thermal shaping fixture, which includes an upper mold and a lower mold that are arranged correspondingly, the bottom of the upper mold is provided with an arc-shaped protrusion, and the top of the lower mold is provided with a corresponding arc-shaped protrusion. An arc-shaped groove, a plurality of positioning pins protruding from the bottom of the arc-shaped groove in the arc-shaped groove, and avoidance holes are provided on the arc-shaped protrusion corresponding to the positioning pins.

A depression is provided at the middle of the bottom of the upper mold, the arc-shaped protrusion is disposed in the depression, and the top of the arc-shaped protrusion protrudes from the bottom of the upper mold.

The arc-shaped groove is arranged at the middle position of the top of the lower die corresponding to the arc-shaped protrusion.

The same number of piercing holes as the positioning pins are arranged through the top and bottom of the lower mold, and the positioning pins are arranged on the lower mold through the piercing holes.

The diameter of the lower part of the positioning pin is larger than that of the upper part of the positioning pin, and the top of the positioning pin is provided with a spherical surface.

There are two positioning pins, and the two positioning pins are respectively arranged on opposite corners of the arc-shaped groove.

The beneficial effects of the utility model are: the utility model has a simple and reasonable structure and an ingenious design. Through the cooperation of the arc-shaped bump and the arc-shaped groove, the die-casting steel sheet can be adjusted well, and the deformation recovery is low after adjustment. , The yield rate of the adjusted die-casting steel sheet is high, which can meet the needs of use.

Below in conjunction with accompanying drawing and embodiment, the utility model is further described.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a perspective view of the utility model.

detailed description

Embodiment: As shown in Figure 1 and Figure 2, the utility model is a die-casting steel sheet thermal shaping fixture, which includes a corresponding upper mold 1 and a lower mold 2, the bottom of the upper mold 1 is provided with an arc The convex block 11, the top of the lower mold 2 is provided with an arc-shaped groove 21 corresponding to the arc-shaped convex block 11, and a plurality of positioning pins 22 are provided at the bottom of the arc-shaped groove 21 protruding from the arc-shaped groove 21, An avoidance hole is provided on the arc-shaped protrusion 11 corresponding to the positioning pin 22 .

A depression 12 is provided at the middle of the bottom of the upper mold 1 , the arc-shaped protrusion 11 is disposed in the depression 12 , and the top of the arc-shaped protrusion 11 protrudes from the bottom of the upper mold 1 .

The arc-shaped groove 21 is arranged in the middle of the top of the lower mold 2 corresponding to the arc-shaped protrusion 11 .

The top and bottom of the lower mold 2 are provided with the same number of piercing holes as the positioning pins 22 , and the positioning pins 22 are disposed on the lower mold 2 through the piercing holes.

The diameter of the lower part of the positioning pin 22 is larger than that of the upper part of the positioning pin 22, and the top of the positioning pin 22 is provided with a spherical surface.

There are two positioning pins 22 , and the two positioning pins 22 are respectively arranged on opposite corners of the arc-shaped groove 21 .

When in use, the deformed die-casting steel sheet 3 is placed on the lower mold 2, the upper convex part of the die-casting steel sheet 3 is facing the arc-shaped bump 11, and the positioning pin 22 is a positioning pin on the corresponding die-casting steel sheet 3. The hole 31 is set so that the positioning pin 22 passes through the positioning hole 31 to position the die-casting steel sheet 3, and the upper mold 1 presses down, so that the upper convex part of the die-casting steel sheet 3 can be pressed to become convex. When the die-casting steel sheet 3 After being taken out from the lower mold 2, the die-casting steel sheet 3 deforms and recovers, becoming flat or slightly convex, thereby meeting the requirements for use.

The utility model has a simple and reasonable structure and an ingenious design. Through the cooperation of the arc-shaped protrusion 11 and the arc-shaped groove 21, the die-casting steel sheet 3 can be adjusted well. The die-cast steel sheet 3 has a high yield and can meet the requirements of use.

As described in the embodiment of the utility model, other die-casting steel hot shaping fixtures with the same or similar structure as the utility model are all within the protection scope of the utility model.

Claims (6)

1. A die-casting steel sheet thermal shaping fixture, which comprises a corresponding upper die and lower die, is characterized in that: the bottom of the upper die is provided with an arc-shaped bump, and the top of the lower die corresponds to the The arc-shaped protrusion is provided with an arc-shaped groove, a plurality of positioning pins protrude from the bottom of the arc-shaped groove in the arc-shaped groove, and avoidance holes are provided on the arc-shaped protrusion corresponding to the positioning pins. 2. The die-casting steel sheet thermal shaping fixture according to claim 1, wherein a depression is provided at the middle position of the bottom of the upper die, and the arc-shaped protrusion is arranged in the depression, and the arc-shaped protrusion is set in the depression. The top protrudes from the bottom of the upper mold. 3 . The die-casting steel sheet thermal shaping fixture according to claim 2 , wherein the arc-shaped groove is arranged in the middle of the top of the lower die corresponding to the arc-shaped protrusion. 4 . 4. The die-casting steel sheet thermal shaping fixture according to claim 1, wherein the top and bottom of the lower mold are provided with the same number of piercing holes as the positioning pins, and the positioning pins pass through the holes. The piercing hole is arranged on the lower mold. 5. The die-casting steel sheet thermal shaping fixture according to claim 4, wherein the diameter of the lower part of the positioning pin is larger than the upper part of the positioning pin, and the top of the positioning pin is provided with a spherical surface. 6. The die-casting steel sheet thermal shaping fixture according to claim 1, wherein there are two positioning pins, and the two positioning pins are respectively arranged on opposite corners of the arc-shaped groove.