CN203751131U

CN203751131U - U-shaped ring bending die

Info

Publication number: CN203751131U
Application number: CN201420046632.7U
Authority: CN
Inventors: 王景; 周进军
Original assignee: HUNAN GEMIN ELECTRIC MATERIAL CO Ltd
Current assignee: HUNAN GEMIN ELECTRIC MATERIAL CO Ltd
Priority date: 2014-01-25
Filing date: 2014-01-25
Publication date: 2014-08-06
Anticipated expiration: 2024-01-25

Abstract

The utility model discloses a U-shaped ring bending die. The U-shaped ring bending die comprises a lower die block (1), lower die pins (2), bolts (3), clamps (4) and an upper die block (5), wherein the upper die (5) is fixed to a slide block of a press machine; a lower die comprising two symmetric lower die blocks (2) is located to the clamps (4) through the lower die pins (2); a clamp (5) is fixed to a cutting board (7) through the bolt; the two clamps (4) are located through the bolts (3). With the adoption of the U-shaped ring bending die, that the dimension of a bending part is influenced by the deviation of the clamps during bending for preparing the die can be effectively prevented; a lower die slide block can rotate freely during downwards pressing the upper die, and thus a tool can be effectively prevented from slipping during bending, and the surface roughness can also be conveniently controlled.

Description

A kind of U-shaped ring bending mould

Technical field

The utility model relates to a kind of spares bend mould, especially designs a kind of counterdie rotatably with the bending mould of the U-shaped ring of steel bar groove.

Background technology

Crooked part is Modern Industry Products, automobile, electrical equipment, one of punching parts that in instrument and instrument manufacture, quantity is maximum, crooked part major part adopts bending die to process, existing bending die comprises the upper die and lower die of steel, patrix is under the drive of forcing press, workpiece completes brake forming under the acting in conjunction of upper die and lower die, while using bending die to carry out brake forming, the elastic-plastic deformation producing in the fillet district of bool, bool is being left after bending die, strain is recovered, make bool produce resilience, affect the geomery of bool, simultaneously, may be because bool two ends are subject to force unbalance, cause bool two ends different in size, thereby generation waste product, cause waste.

Summary of the invention

The defect existing for above-mentioned technology, the purpose of this utility model is just to provide the utility model provides a kind of counterdie mobilizable U-shaped ring bending mould, resilience and the two ends distortion that can effectively reduce bool are inhomogeneous, have ensured the dimensional accuracy of bool, reduce percent defective.

For achieving the above object, the technical scheme the utility model proposes is: a kind of U-shaped ring bending mould, comprise lower module (1), counterdie pin (2), bolt (3), fixture (4) and upper module (5), it is characterized by: patrix (5) is fixed on the slide block of forcing press, counterdie is made up of two symmetrical lower modules (2), counterdie pin (2) is by counterdie and fixture (4) location, by bolt (3), fixture (5) is fixed on to chopping block (7) upper, two fixtures (4) are by bolt (3) location.

The beneficial effects of the utility model:

The utility model can effectively prevent that fixture in molding BENDING PROCESS from skew occurring and affect the size of bool; in the process that can press down at patrix, lower mode slider can freely rotate; in lower mode slider, open steel bar groove; effectively prevent that in BENDING PROCESS, workpiece slides, be conducive to control surface roughness simultaneously.

Brief description of the drawings

Fig. 1 the utility model patent structure schematic diagram;

Fig. 2 is flexural deformation pressing mold process schematic diagram;

Fig. 3 is flexural deformation pressing mold process schematic diagram;

Fig. 4 is flexural deformation moulded section schematic diagram;

It is the structural representation of the utility model bending die.

detailed description of the invention:

Now the utility model is described in further detail by reference to the accompanying drawings.

As shown in Figure 1, a kind of mobilizable bending mould with steel bar groove, comprise lower module (1), counterdie pin (2), bolt (3), fixture (4) and upper module (5), it is characterized by: patrix (5) is fixed on the slide block of forcing press, counterdie is made up of two symmetrical lower modules (2), counterdie pin (2) is by counterdie and fixture (4) location, by bolt (3), fixture (5) is fixed on chopping block, two fixtures (4) are by bolt (3) location, prevent that mould is subjected to displacement in the process of punching press.As shown in Figure 1, bool (6) is put on counterdie, has the trough of workpiece size on counterdie, is conducive in the process of punching press, and fixation workpiece, has improved surface quality and the accuracy to size of workpiece.

Fig. 2, Fig. 3 are bending deformation process schematic diagram, and in bending process, counterdie rotates along with workpiece bending, in the process of distortion, the circular cake at bool two ends is put in the trough of counterdie, as shown in Figure 4, the top view of counterdie, has prevented the inhomogeneous deformation of bool two ends.

Claims

1. a U-shaped ring bending mould, comprise lower module (1), counterdie pin (2), bolt (3), fixture (4) and upper module (5), it is characterized by: patrix (5) is fixed on the slide block of forcing press, counterdie is made up of two symmetrical lower modules (2), counterdie pin (2) is by counterdie and fixture (4) location, by bolt (3), fixture (5) is fixed on to chopping block (7) upper, two fixtures (4) are by bolt (3) location.