CN205020636U

CN205020636U - U type bolt forming die

Info

Publication number: CN205020636U
Application number: CN201520612280.1U
Authority: CN
Inventors: 李国建; 李站春
Original assignee: Shanghai Donpcranes Co Ltd
Current assignee: Shanghai Donpcranes Co Ltd
Priority date: 2015-08-14
Filing date: 2015-08-14
Publication date: 2016-02-10
Anticipated expiration: 2025-08-14

Abstract

The utility model provides a U type bolt forming die, relates to the mechanical manufacturing technology field, and that solve is the technical problem who reduces manufacturing cost. This mould includes tringle, lower membrane module, the bottom terminal surface of going up the tringle is the convex arc face, the membrane module includes the base down, and fixes each the lower mould support of the left and right sides on the base, each pivot is equipped with the swing arm of a pivot about can on two lower mould supports, and the pivot of two swing arms is parallel to each other, and the lower extreme subtend of two swing arms is buckled and the mutually noninterfere, and a gyro wheel respectively is equipped with on the top of two swing arms, and the roller bearing of gyro wheel is on a parallel with the pivot of swing arm, be fixed with a detachable resilience backing plate on the base, the lower extreme kink that the backing plate that should kick -back is located two swing arms is under to form the pivot of the lower extreme kink of two swing arms and interfere. The utility model provides a mould can be used for the manufacturing of many specifications U type bolt.

Description

U-bolt mould

Technical field

The utility model relates to Machine Manufacturing Technology, particularly relates to a kind of technology of U-bolt mould.

Background technology

U-bolt all utilizes mould punching shaping when batch micro operations, existing U-bolt mould is primarily of upper tringle and die shoe composition, during punching press, workpiece is placed on die shoe, can by workpiece punch forming in the U-shaped die cavity that in utilization, workpiece is pressed into die shoe by tringle.Because U-bolt is all steel material, workpiece punch forming also understands slightly resilience after taking out, therefore the U-shaped die cavity of die shoe all will stay resilience surplus in advance, but in existing U-bolt mould, the resilience surplus of the U-shaped die cavity of die shoe is all fixing, cannot adjust, therefore existing U-bolt mould all can only be used for the processing and manufacturing of single gauge U-bolt usually, and this can cause the increase of enterprise's manufacturing cost.

Summary of the invention

For the defect existed in above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of processing and manufacturing that can be used for many specifications U-bolt, thus can reduce the U-bolt mould of manufacturing cost.

In order to solve the problems of the technologies described above, a kind of U-bolt mould provided by the utility model, comprises tringle, lower mold assemblies, and the bottom end face of described upper tringle is convex globoidal, it is characterized in that: described lower mold assemblies comprises base, and be fixed on each counterdie bearing in left and right on base;

Described two counterdie bearings are respectively pivoted with the swing arm of the upper and lower pivotable of an energy, and the pivot of two swing arms is parallel to each other, the lower end subtend bending of two swing arms and non-interference, a roller is respectively equipped with on the top of two swing arms, and the roller bearing of roller is parallel to the pivot of swing arm, base is fixed with around each one for the spacing limited block of two swing arm pivotables, two swing arms are between two limited blocks;

Described base is fixed with a dismountable resilience backing plate, this resilience backing plate is positioned at immediately below the lower end kink of two swing arms, and forms interference to the pivotable of the lower end kink of two swing arms.

The U-bolt mould that the utility model provides, adjusts the thickness of resilience backing plate, i.e. the springback capacity of adjustable workpiece, only need change the resilience backing plate of different-thickness, can meet the manufacture demand of plurality of specifications U-bolt, can reduce manufacturing cost.

Accompanying drawing explanation

Fig. 1 is the schematic diagram before the U-bolt mould stamped workpieces of the utility model embodiment;

Fig. 2 is the schematic diagram of the U-bolt mould stamped workpieces of the utility model embodiment.

Detailed description of the invention

Illustrate below in conjunction with accompanying drawing and embodiment of the present utility model is described in further detail; but the present embodiment is not limited to the utility model; every employing analog structure of the present utility model and similar change thereof; protection domain of the present utility model all should be listed in, the pause mark in the utility model all represent and relation.

As Figure 1-Figure 2, a kind of U-bolt mould that the utility model embodiment provides, comprise tringle 1, lower mold assemblies, the bottom end face of described upper tringle 1 is convex globoidal, it is characterized in that: described lower mold assemblies comprises base 2, and be fixed on each counterdie bearing 3 in left and right on base 2;

Described two counterdie bearings 3 are respectively pivoted with the swing arm 4 of the upper and lower pivotable of an energy, and the pivot of two swing arms 4 is parallel to each other, the lower end subtend bending of two swing arms 4 and non-interference, a roller 5 is respectively equipped with on the top of two swing arms 4, and the roller bearing of roller 5 is parallel to the pivot of swing arm 4, base 2 is fixed with around each one for spacing limited block 8, two swing arms of two swing arm pivotables between two limited blocks;

Described base 2 is fixed with a dismountable resilience backing plate 6, this resilience backing plate 6 is positioned at immediately below the lower end kink of two swing arms 4, and forms interference to the pivotable of the lower end kink of two swing arms 4.

The utility model embodiment is applicable to the punch forming operation of U-bolt, and its working method is as follows:

First by workpiece 7(round steel bar section to be processed) (see figure 1) on two rollers being placed on two swing arm tops by development size location, again upper tringle is promoted to directly over workpiece, and drive upper tringle to move downward with power-equipment, tringle stamped workpieces in utilization, because upper tringle bottom end face is convex globoidal, workpiece is stamped into U-shaped, when workpiece is stamped to the lower end kink touching two swing arms, that continues along with upper tringle moves downward, two stressed pivotables of swing arm, make the inside out movement in the upper end of two swing arms, thus the top of the workpiece taken the shape of the letter U inwardly is extruded, until the lower end kink of two swing arms is blocked (see figure 2) by resilience backing plate, then carry on upper tringle, in type workpiece can be taken out, workpiece has a certain amount of resilience after taking out, the thickness of resilience backing plate is adjusted, the i.e. springback capacity of adjustable workpiece, only need change the resilience backing plate of different-thickness, the manufacture demand of plurality of specifications U-bolt can be met.

Claims

1. a U-bolt mould, comprises tringle, lower mold assemblies, and the bottom end face of described upper tringle is convex globoidal, it is characterized in that: described lower mold assemblies comprises base, and is fixed on each counterdie bearing in left and right on base;