CN202427826U

CN202427826U - Novel bending die

Info

Publication number: CN202427826U
Application number: CN2011205532938U
Authority: CN
Inventors: 张文钦; 郑兴财; 吴书华
Original assignee: XIAMEN JIAXIN PRECISE METAL CO Ltd
Current assignee: XIAMEN JIAXIN PRECISE METAL CO Ltd
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-09-12
Anticipated expiration: 2021-12-27

Abstract

The utility model discloses a novel bending die. The novel bending die comprises an upper template, spindle fixing blocks, a molding spindle, lower fixing blocks, a connecting block, a lower template, movable molding plates, an ejector plate, a base plate, springs and a lower die holder, wherein the molding spindle is fixedly connected with the upper template through the spindle fixing blocks which are fixedly connected to two ends of the molding spindle; the lower fixing blocks are fixed on two sides of the lower template; two ends of the movable molding plates are sleeved on the lower fixing blocks positioned on the two sides in a swinging mode through the connecting block; the ejector plate and the base plate are overlapped together; the bottom of the base plate is tightly pressed against the upper end faces of the springs; and the lower end faces of the springs are pressed against the lower die holder. Because the two movable molding plates can swing, when the molding spindle is pressed, the two movable molding plates can swing around the molding spindle, straightening force is applied to a bending piece, and the bending piece can be shaped by the ejector plate which is positioned below the movable molding plates, so that bounce is greatly reduced; and therefore, the machined bending piece has high bending precision.

Description

Novel bending die

Technical field

The utility model relates to a kind of cold punching die, particularly relates to a kind of novel bending die.

Background technology

Bending forming technology is the needs according to part shape, curves certain angle to blank through mould and forcing press, the Sheet Metal Forming Technology method of definite shape workpiece.The application of bending forming technology in commercial production: use quite extensive, like a lot of cover pieces of carrying out on the automobile, the tank bracket member of car, handle on the motorcycle, foot support, the support element on the bicycle, handle, little of knocker, clip (iron clamp) etc.In actual production, what bool mainly will solve is the resilience problem.Because the existence of elastic recovery changes the radius of curvature of bool sweep and angle of bend after crooked external force removes, the dimensional accuracy of bool is difficult to guarantee.So the dealer is badly in need of the high bending die of a kind of crooked precision.

The utility model content

The purpose of the utility model is the novel bending die that provides a kind of crooked precision high.

For realizing above-mentioned purpose, the technical solution of the utility model is:

The utility model is a kind of novel bending die, and it comprises cope match-plate pattern, mandrel fixed block, forming core shaft, following fixed block, contiguous block, lower bolster, movable profiled sheeting, die pad, backing plate, spring, die shoe; Described forming core shaft is affixed through the mandrel fixed block and the cope match-plate pattern that are fixed in its two ends; Described fixed block down has two, is separately fixed at the both sides of lower bolster; Described movable profiled sheeting has two; These two movable profiled sheetings laterally arrange; Their two ends are an affixed contiguous block respectively, and what the contiguous block at two ends can be swung is nested with on the following fixed block that is positioned at both sides, and the center line of two movable profiled sheetings top is over against forming core shaft; Described die pad and backing plate are superimposed together, and die pad is positioned at the below of the center line of two movable profiled sheetings, and the bottom of backing plate leans the upper surface at spring, and the lower surface of spring leans on die shoe.

Described spring is the rectangle spring.

The utility model also comprises four bearing pins, and these four bearing pins secured in parallel respectively are fixed in being placed on the bearing pin that the contiguous block at two movable profiled sheeting two ends can swing respectively on twice fixed blocks.

The utility model also comprises upper mounted plate, and this upper mounted plate has two, is separately fixed at cope match-plate pattern and gets both sides, and the mandrel fixed block is fixed on the upper mounted plate.

After adopting such scheme; Because two movable profiled sheetings of the utility model can be swung, when forming core shaft was depressed, two movable profiled sheetings can surround into the core barrel swing; Bool is imposed calibrated force; And the die pad that is positioned at movable profiled sheeting below can be to the further shaping of bool, thereby reduces resilience greatly, makes to process to such an extent that the crooked precision of bool is high.

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

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the side view of the utility model;

Fig. 3 is the machining state figure of the utility model.

The specific embodiment

Like Fig. 1, shown in Figure 2; The utility model is a kind of novel bending die, and it comprises cope match-plate pattern 1, upper mounted plate 2, mandrel fixed block 3, forming core shaft 4, fixed block 5, contiguous block 6, lower bolster 7, movable profiled sheeting 8, four bearing pins 9, die pad 10, backing plate 20, spring 30, die shoe 40 down.

Described upper mounted plate 2 has two, is separately fixed at the both sides of cope match-plate pattern 1, and mandrel fixed block 3 is fixed on the upper mounted plate 2, and the two ends of forming core shaft 4 are fixed on the mandrel fixed block 3.

Described fixed block 5 down has two, is separately fixed at the both sides of lower bolster 7; Described movable profiled sheeting 8 has two, and these two movable profiled sheetings 8 laterally arrange, and their two ends are an affixed contiguous block 6 (totally four) respectively.Described four bearing pins 9 secured in parallel respectively are fixed in being placed on the bearing pin 9 that the contiguous block 6 at two movable profiled sheeting 8 two ends can swing respectively on twice fixed blocks 5, the center line of two movable profiled sheetings 8 top is over against forming core shaft.

Described die pad 10 is superimposed together with backing plate 20, and die pad 10 is positioned at the below of the center line of two movable profiled sheetings 8, and the bottom of backing plate 20 leans in the upper surface of spring 30, and the lower surface of spring 30 leans on die shoe 40.

In the present embodiment, described spring 30 is the rectangle spring.

The course of work of the utility model:

As shown in Figure 3, cope match-plate pattern 1 presses down, and drives forming core shaft 4 and presses on the blank 90 that is placed on movable profiled sheeting 8 end faces; When forming core shaft 4 touches blank 90; Two movable profiled sheetings 8 center on the outside swing of the bearing pin 9 at its two ends respectively, and blank 90 is bent moulding, and 10 pairs of blank 90 bottom surfaces of die pad impose a roof pressure power that makes progress simultaneously; Blank 90 to bending carries out shaping, reduces resilience.

The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented with this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. novel bending die is characterized in that: it comprises cope match-plate pattern, mandrel fixed block, forming core shaft, fixed block, contiguous block, lower bolster, movable profiled sheeting, die pad, backing plate, spring, die shoe down; Described forming core shaft is affixed through the mandrel fixed block and the cope match-plate pattern that are fixed in its two ends; Described fixed block down has two, is separately fixed at the both sides of lower bolster; Described movable profiled sheeting has two; These two movable profiled sheetings laterally arrange; Their two ends are an affixed contiguous block respectively, and what the contiguous block at two ends can be swung is nested with on the following fixed block that is positioned at both sides, and the center line of two movable profiled sheetings top is over against forming core shaft; Described die pad and backing plate are superimposed together, and die pad is positioned at the below of the center line of two movable profiled sheetings, and the bottom of backing plate leans the upper surface at spring, and the lower surface of spring leans on die shoe.

2. novel bending die according to claim 1 is characterized in that: described spring is the rectangle spring.

3. novel bending die according to claim 1 is characterized in that: it also comprises four bearing pins, and these four bearing pins secured in parallel respectively are fixed in being placed on the bearing pin that the contiguous block at two movable profiled sheeting two ends can swing respectively on twice fixed blocks.

4. novel bending die according to claim 1 is characterized in that: it also comprises upper mounted plate, and this upper mounted plate has two, is separately fixed at cope match-plate pattern and gets both sides, and the mandrel fixed block is fixed on the upper mounted plate.