CN213052184U

CN213052184U - Strengthening rib forming device

Info

Publication number: CN213052184U
Application number: CN202021509214.9U
Authority: CN
Inventors: 陈哲
Original assignee: XIAMEN RUITENG ELECTRONIC TECHNOLOGY CO LTD
Current assignee: XIAMEN RUITENG ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-27
Anticipated expiration: 2030-07-28

Abstract

A reinforcing rib forming device comprises an upper die base provided with a male die and a lower die base provided with a female die, wherein a convex rib sheet is detachably arranged on the male die, and a convex rib of a convex rib groove for forming a part is arranged on the working surface of the convex rib sheet; the female die is provided with an accommodating groove corresponding to the convex rib; the utility model provides a strengthening rib forming device, in operation, the mould compresses tightly the material, the terrace die is rolled over to 90 degrees with the part according to last mould in-process that descends, protruding muscle piece is bending the root outside and is corresponding the recess with part outside extrusion, the material is according to the unchangeable principle of volume in crowded die holding tank, it is protruding to form to correspond, the clearance of shaping terrace die and die is less than or equal to t, the material is changed to plastic deformation by elastic deformation, thereby reduced the part angle resilience, the angle is stable, make the part size more press close to the theoretical requirement of mould design.

Description

Strengthening rib forming device

Technical Field

The utility model relates to a relay components and parts mold processing field especially relates to a strengthening rib forming device.

Background

The raw materials of the relay metal part are basically pure copper and pure iron, the material thickness is different from 0.1mm to 3.0mm, the packaging mode of the raw materials in the production process of the progressive die is a strip which is rolled and packaged, the strip is leveled by a leveling machine and then is sent into a die to be punched and processed into required parts, and the bending deformation generated under the pressure action of the bending male die comprises two parts, namely plastic deformation and elastic deformation due to the fact that the raw materials are thin. After the bending process is finished, the plastic deformation is preserved, and the elastic deformation rebounds, so that the outer side of the bending deformation area is shortened due to elastic recovery, the inner side is extended due to elastic recovery, and the phenomenon that the bending angle and the bending radius of the bending piece are inconsistent with the corresponding size of the die (the two wings are outwards expanded, and the bending radius is increased) is generated. The rebound directly influences the dimensional accuracy of the part, and in order to effectively improve the problem, the applicant organizes and develops a forming structure for reducing the bending rebound of the part.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem, the utility model provides a can ensure strengthening rib shaping structure of the size precision of part.

In order to achieve the above purpose, the utility model provides a technical scheme is:

a reinforcing rib forming device comprises an upper die base provided with a male die and a lower die base provided with a female die, wherein a convex rib sheet is detachably arranged on the male die, and a convex rib of a convex rib groove for forming a part is arranged on the working surface of the convex rib sheet; and the female die is provided with an accommodating groove corresponding to the convex rib.

Two convex rib pieces are respectively arranged on two opposite sides of the convex die.

And the female die is provided with female die press ribs corresponding to the working surface of the convex rib sheet and at positions not corresponding to the convex ribs of the convex rib sheet.

The convex rib piece working face is connected with a protruding face, and the thickness of the protruding face is 0.3t larger than that of the convex rib piece working face.

The thickness of the convex rib sheet is 0.5-2.0 mm.

The working surface angle of the female die is 89.5-89 degrees.

The fit clearance between the convex rib sheet and the convex die is 0-0.01 mm.

The technical scheme has the advantages that:

the utility model provides a strengthening rib forming device, in operation, the mould compresses tightly the material, and the terrace die is rolled over to 90 degrees with the part according to last mould in-process that descends, and protruding muscle piece is bending the root outside and is corresponding the recess with part outside extrusion, and the material is according to the unchangeable principle of volume in crowded die holding tank, and it is protruding to form to correspond, and the material of shaping terrace die and die is changed to plastic deformation by elastic deformation to reduced the part angle resilience, the angle is stable, makes the part size more press close to the mould design theoretical requirement.

The technical solutions of the present invention will be described clearly and completely with reference to the following detailed description, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the male die of the present invention;

fig. 3 is a schematic structural view of the rib sheet of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2;

FIG. 5 is a schematic side view of the male mold of the present invention;

fig. 6 is a schematic top view of the female die of the present invention;

FIG. 7 is a schematic view of the side view of the concave mold of the present invention;

FIG. 8 is an enlarged view of the structure at B in FIG. 7;

FIG. 9 is a schematic top perspective view of a part after it has been formed;

fig. 10 is a schematic bottom perspective view of the molded part.

Detailed Description

The reinforcing rib forming device shown in fig. 1-8 comprises an upper die holder 1 provided with a male die 3 and a lower die holder 2 provided with a female die 4, wherein the male die 3 is detachably provided with a convex rib sheet 30, and a convex rib 31 for forming a convex rib groove 50 on a part 5 is arranged on a working surface C of the convex rib sheet 30; the female die 4 is provided with an accommodating groove 41 corresponding to the convex rib 31. Specifically, two opposite sides of the male die 3 are respectively provided with two convex rib pieces 30, two of the four convex rib pieces 30 form a group, the convex ribs 31 of the same group of convex rib pieces 30 are opposite, the convex ribs 31 can be made of common SKD11, a convex rib matching surface C needs to be matched with the male die 3, and a matching gap between the convex rib pieces 30 and the male die 31 is 0-0.01 mm; as shown in fig. 4, the rib piece working surface C is connected with a protruding surface D, and the thickness of the protruding surface D is greater than that of the rib piece working surface c0.3t, so that the part can be prevented from being scratched in the forming process; of course, the arrangement is not limited to four convex rib pieces, the number of the convex rib pieces can be increased or decreased according to the processing requirement of the part, and the distance or the relative position of the convex rib pieces on the convex die is also adjusted and arranged according to the relative position of the forming surface of the part. The corresponding holding tank of the inboard design of die that the protruding muscle corresponds, the extruded material of the protruding muscle A of being convenient for flows.

As shown in fig. 8, the female die 4 is made of a common material DC53, so that the cost is low; the female die 4 is provided with female die beads 40 corresponding to the convex rib sheet working surface C and not corresponding to the convex ribs 31 of the convex rib sheet; with such an arrangement, bulging of the root of the part bend can be prevented, and on the other hand, the material is also subjected to a transition from elastic deformation to plastic deformation; the working face angle of the female die is 89.5-89 degrees, the design of the female die corresponds to a negative angle of 0.5-1 degrees, and the performance effect of rib pressing of the female die can be further improved.

Preferably, the thickness of the bead sheet 30 is 0.5-2.0 mm; through such setting, because the protruding muscle piece is the detachable and fixes on the terrace die, consequently, can install according to material thickness, select the protruding muscle piece of suitable thickness.

Claims

1. The utility model provides a strengthening rib forming device, includes the die holder that is equipped with the upper die base of terrace die and is equipped with the die, its characterized in that: the male die is detachably provided with a convex rib sheet, and the working surface of the convex rib sheet is provided with a convex rib for forming a convex rib groove of the part; and the female die is provided with an accommodating groove corresponding to the convex rib.

2. A reinforcing bar forming apparatus as defined in claim 1, wherein: two convex rib pieces are respectively arranged on two opposite sides of the convex die.

3. A reinforcing bar forming apparatus as defined in claim 1, wherein: and the female die is provided with female die press ribs corresponding to the working surface of the convex rib sheet and at positions not corresponding to the convex ribs of the convex rib sheet.

4. A reinforcing bar forming apparatus as claimed in claim 1 or 2, wherein: the convex rib piece working face is connected with a protruding face, and the thickness of the protruding face is 0.3t larger than that of the convex rib piece working face.

5. A reinforcing bar forming apparatus as claimed in claim 1 or 2, wherein: the thickness of the convex rib sheet is 0.5-2.0 mm.

6. A reinforcing bar forming apparatus as defined in claim 1, wherein: the working surface angle of the female die is 89.5-89 degrees.

7. A reinforcing bar forming apparatus as defined in claim 1, wherein: the fit clearance between the convex rib sheet and the convex die is 0-0.01 mm.