CN201020491Y

CN201020491Y - Bending forming device for coupler tail frame

Info

Publication number: CN201020491Y
Application number: CNU2006201708969U
Authority: CN
Inventors: 曾德文
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-28
Filing date: 2006-12-28
Publication date: 2008-02-13
Anticipated expiration: 2016-12-28

Abstract

The utility model relates to a forging hook tail frame part molding device and discloses a coupler tail frame bending molding device, the device includes a press device, a molding rack, a protruding mould and a concave mould, the molding rack body is placed on the table of the press device, the concave mould is equipped in the bottom of a concave part of the molding rack, the protruding mould is connected with a pressure head, both sides of the top concave part of the molding rack are paralleled equipped with at least three pairs of movable pressing rollers which make the frame of the coupler tail and the protruding mould affixed, the other two sides of the concave part of the molding rack are also equipped with two pairs of movable pressing rollers which are used to prevent the frame plate of the coupler tail frame distorting to a lateral direction. The coupler tail frame of the utility model is simple and with lower cost in production and high accuracy of the size, and the frame can limit the distortion coupler tail frame.

Description

The brake forming device of hook tail frame

Technical field

The utility model relates to a kind of shaped device of forging hook tail frame parts, relates in particular to a kind of brake forming device of hook tail frame.

Background technology

Hook tail frame is the strength member that a kind of railway freight-car is used, and is U type mount structure.Existing hook tail frame is the turnover panel moulding manufacture method, normally at high temperature, the part in the middle of the secured blank at first, again by special forcing press from two curved plates, make it become the U type, to be formed after, carry out shaping again.Thisly form several shortcomings, it at first is the distortion (being two straight portion mutual dislocation of U type) that this forming method is difficult to avoid steel plate, the straight portion of U type also can bend or warpage, thereby need carry out further shaping, it is longer to expend time in, usually the shaping process need reheats, thereby production cost increases greatly; On the other hand, need special corresponding forcing press with this method and device, and this also can increase the production cost of hook tail frame greatly.

Summary of the invention

The utility model provides that a kind of hook tail frame cost simple, that produce is low, dimensional accuracy is high, can limit the brake forming device of the hook tail frame of hook tail frame distortion.

The utility model adopts following technical scheme:

A kind of brake forming device of hook tail frame, it is characterized in that, comprise forcing press, make-up machine support body, punch and die, the make-up machine support body is placed on the workbench of forcing press, die is arranged on the bottom of make-up machine support body recess, punch is connected with the pressure head of forcing press, but parallelly in both sides, make-up machine support body recess top be provided with at least 3 pairs of dynamic pressure rollers that are used to make hook tail circle body plate and punch to fit, the also parallel movable running roller of two couples that is provided with the framework plate side direction distortion that is used to prevent hook tail frame in the other both sides, top of make-up machine support body recess.

For making pressure roller and hook tail frame better fit, thereby make that hook tail circle body plate is straight, strengthen the roll-in effect, but dynamic pressure roller is provided with 3 pairs.But thereby dynamic pressure roller drives pressure roller applying hook tail frame by hydraulic control.

The movable running roller that prevents the distortion of hook tail frame side direction has increased the restriction to the distortion of hook tail circle body plate side direction for the swing running roller, and has simplified the structure of device, has increased the reliability and the durability of device simultaneously.

The utility model obtains following technique effect:

1. the utility model obtains the basic configuration of hook tail frame by design hook tail frame make-up machine support body and die shape, and combine with the pressure roller of hydraulic control and the running roller of hydraulic control, because the pressure roller of hydraulic control and the effect of running roller, make that on the one hand framework obtains the basic configuration of hook tail frame, but the dynamic pressure roller of hydraulic control and movable running roller can be regulated in process at any time on the other hand, revise the distortion of framework plate in BENDING PROCESS, make the manufacturing and one step of shaping of hook tail frame finish, thereby need not to carry out again shaping, improved production efficiency, simultaneously saved energy consumption heat time heating time, reduced production cost widely because of having reduced workpiece.

2. the utility model adopts protruding, negative mold and the die cavity with hook tail frame bend profile, can use widely on the normal pressure machine, make protruding, negative mold relative motion, the bending of hook tail frame blank is inserted the space of punch and die and make-up machine support body, and moulding hook tail frame, need the moulding of former turnover panel special forcing press come moulding and need not to resemble, thereby cost has obtained further reduction.

3. but the utility model is simultaneously by being provided with the hydraulic control dynamic pressure roller in die cavity, reduced the frictional force of framework plate motion on the one hand, but the dynamic pressure roller by hydraulic control pushes framework plate side on the other hand, make the framework plate be close to convex mould surface, thereby make that the dimensional discrepancy of hook tail frame and design is little, make part according to the profile moulding of setting, improved the accuracy of manufacture of part, the utility model is also by being provided with the movable running roller of hydraulic control in die cavity, reduce the frictional force in the framework plate running on the one hand, define the mutual changing of the relative positions between framework plate two flat faces on the other hand, distortion; This shows, but dynamic pressure roller and running roller by hydraulic control can be realized the bending on the hook tail circle body plate both direction and the small control of torsional deformation, thereby improve the one-time formed accuracy of manufacture.

Description of drawings

Fig. 1 is that the structure master of the utility model embodiment 1 looks cutaway view.

Fig. 2 is the structure vertical view cutaway drawing of the utility model embodiment 1.

Fig. 3 is the structure left view of the utility model embodiment 1.

The specific embodiment

Embodiment 1

A kind of hook tail frame brake forming device, it is characterized in that, comprise forcing press, make-up machine support body, punch and die, the make-up machine support body is placed on the workbench of forcing press, die is arranged on the bottom of make-up machine support body recess, punch is connected with the pressure head of forcing press, but parallelly in make-up machine support body recess both sides be provided with at least 3 pairs of dynamic pressure rollers that are used to make hook tail circle body plate and punch to fit, the also parallel movable running roller of two couples that is provided with the framework plate side direction distortion that is used to prevent hook tail frame in the other both sides of make-up machine support body recess.

For making pressure roller and hook tail frame better fit, strengthen the roll-in effect, but dynamic pressure roller is provided with 3 pairs, also can have 4 pairs, 5 pairs, 6 pairs, punch is positioned at the make-up machine recess, hook tail frame blank is positioned at its outside, but dynamic pressure roller, but thereby dynamic pressure roller drives pressure roller applying hook tail frame by hydraulic control.The moving direction of hydraulic control is unidirectional moving, and has simplified hydraulic control device, and in forming process, the less power of mold-relieving type makes pressure roller reply.The movable running roller that prevents the distortion of hook tail frame side direction is the swing running roller, has simplified the structure of device.

Hook tail frame bending and molding method, may further comprise the steps, with hook tail frame blank (certain waste heat is arranged) or the hook tail frame blank that has just forged through heating, be placed on the bender, drive punch with forcing press and stress on hook tail frame blank, make hook tail frame blank crooked and enter the recess of forming frame body, be close to until hook tail frame blank and die, simultaneously, make the framework plate that is arranged at least three pairs of pressure roller compacting hook tail frame blanks on the make-up machine support body make the framework plate straight by the controlled pressure machine, thereby make the framework plate be close to punch, make axially and the limit of pressure roller shaft by the controlled pressure machine, the framework plate on both sides is not distorted, at last to vertical running roller compacting hook tail circle body plate, remove press pressure, the demoulding.

When moulding, hook tail frame blank is positioned on the make-up machine, the opening pressure machine, make punch descend and contact with the centre of hook tail frame blank, increase the pressure of forcing press, make punch move downward and enter make-up machine, when but punch top, horizontal position is lower than dynamic pressure roller and moveable trolley, but unlatching is used to control the hydraulic press of dynamic pressure roller, make hook tail circle body plate be fitted on the punch and the framework plate of avoiding entering make-up machine bends again, unlatching simultaneously is used to prevent the movable running roller of hook tail circle body plate in the relative distortion of another one direction side direction, and this running roller can make the swing roller, and its rotating shaft is fixing thereunder; When punch Drive frame plate is fitted itself and die, hook tail frame moulding fully this moment, but shed the hydraulic press pressure of dynamic pressure roller and moveable trolley again, make the punch counter motion again, leave make-up machine, again with the hook tail frame of anchor clamps after removal from the punch with moulding.Wherein, the interior profile phase of the outline of punch and structure tail frame is same, and the interior profile of die is identical with the outline of structure tail frame sweep (sweep of U-shaped).

Claims

1. the brake forming device of a hook tail frame, it is characterized in that, comprise forcing press (1), make-up machine support body (2), punch (31) and die, make-up machine support body (2) is placed on the workbench (11) of forcing press, die is arranged on the bottom of make-up machine support body (2) recess, punch (3 1) is connected with the pressure head (12) of forcing press (1), at make-up machine support body (2) but the both sides, top of recess are parallel is provided with at least 1 pair of dynamic pressure roller (41 that is used to make hook tail circle body plate and punch to fit, 42), the also parallel movable running roller of two couples (6) that is provided with the framework plate side direction distortion that is used to prevent hook tail frame (5) in the other both sides on make-up machine support body (2) recess top.

2. the brake forming device of hook tail frame according to claim 2 is characterized in that, at make-up machine support body (2) but the recess both sides are parallel is provided with 3 pairs of dynamic pressure rollers that are used to make hook tail circle body plate and punch to fit.

3. the frame brake forming device of hook tail according to claim 2 it is characterized in that, but dynamic pressure roller is by hydraulic control.

4. the brake forming device of hook tail frame according to claim 2 is characterized in that, movable running roller is the swing running roller.