CN202291055U

CN202291055U - Flanging die

Info

Publication number: CN202291055U
Application number: CN2011204230521U
Authority: CN
Inventors: 朱雷; 李傲宏; 王莉红; 孙书郁; 李凤武
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2011-10-31
Filing date: 2011-10-31
Publication date: 2012-07-04
Anticipated expiration: 2021-10-31

Abstract

The utility model relates to a flanging die, which belongs to the technical field of stamping and is used for improving the flanging quality of vehicle doors and other products. The utility model has the technical scheme that the die consists of a fixed die and a movable die, wherein the movable die is a flanging knife block which is connected with an upper die seat through a tapered wedge mechanism, and the fixed die is fixed on a lower die seat and is corresponding to the flanging knife block. The flanging knife block of the flanging die is connected with the upper die seat through the tapered wedge mechanism, and in flanging, the direction of the pressure of the flanging knife block on a workpiece starts from a very small angle in the direction perpendicular to the surface of the workpiece and ends in the direction perpendicular to the surface of the workpiece, so the flange of the workpiece can not have the phenomena of creasing and material lack, and the quality of the workpiece is improved.

Description

A kind of wrapping mold

Technical field

The utility model relates to the diel of using when a kind of inner and outer plates to parts such as arrangements for automotive doors, back door, boot door, hoods is carried out inclusion, belongs to the stamping technology field.

Background technology

Parts such as the car door of automobile, back door, boot door and hood generally all are made up of inner panel and outside plate, and inner panel and outside plate fasten the back and be fixed together through bound edge.In order to enhance productivity, automobile production enterprise generally adopts the mode of punching press that this base part is carried out bound edge, before bound edge, also need carry out precompressed to outside plate invayination branch.Fig. 1～Fig. 3 is respectively the state of state and precompressed and the employing traditional moulds before the boot door bound edge when carrying out bound edge.As can beappreciated from fig. 3; When adopting traditional moulds to carry out bound edge, the direction of motion of bound edge cutter piece is changeless and inconsistent with product normal to a surface direction, i.e. the direction of motion of bound edge cutter piece and product surface out of plumb; This Wrapping method is easy to cause the bound edge fold of product, scarce material; Influence the quality of product, therefore, be necessary the structure of wrapping mold is improved.

The utility model content

The purpose of the utility model be to overcome prior art deficiency, a kind of simple in structure and wrapping mold that crudy is good is provided, when guaranteeing working (machining) efficiency, improve the quality of product.

The said problem of the utility model is realized by following technical scheme:

A kind of wrapping mold is made up of fixed half and moving half, and said dynamic model is a bound edge cutter piece, and it is connected with upper bolster through Wedge mechanism, and said cover half is fixed on the die shoe and is corresponding with bound edge cutter piece.

Above-mentioned wrapping mold; Said Wedge mechanism comprises wedge body and rotation axis support; Rotation axis support is positioned at the below of upper bolster and is fixedly connected with upper bolster; The wedge body is positioned at the below of rotation axis support and is rotationally connected through feathering axis and rotation axis support, and said bound edge cutter piece is fixed on the lower surface of wedge body, on the lower surface of wedge body, also is fixed with sensor block; Sensor block and bound edge cutter piece lay respectively at the both sides of rotating shaft, and the drive block of Wedge mechanism is fixed on the die shoe and is corresponding with sensor block.

Above-mentioned wrapping mold also comprises the initial bit limited block and the stop bit limited block of wedge body in the formation, said initial bit limited block is fixed on the rotation axis support and is positioned at the top of bound edge cutter piece; Said stop bit limited block is fixed on the upper bolster and is positioned at the top of drive block.

Above-mentioned wrapping mold is provided with return spring between wedge body and upper bolster, said return spring is positioned at the drive block top.

Above-mentioned wrapping mold, the wedge body is provided with safety screw, and the lower end of said safety screw and wedge body are affixed, and upper end and upper bolster flexibly connect.

The bound edge cutter piece of the utility model is connected with upper bolster through Wedge mechanism; The wedge body descends on one side during bound edge; Under the drag effect of drive block, rotate on one side around rotating shaft, make the bound edge cutter piece that is fixed on the wedge body to the pressure direction of product from beginning with product surface vertical direction very low-angle, end at and the surperficial vertical direction of product; The bound edge of product fold just can not occur, lack the material phenomenon like this, thereby has improved the quality of product.

Description of drawings

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

Fig. 1 is the state before the boot door bound edge;

Fig. 2 is the state after the boot door precompressed;

Fig. 3 is the state when adopting traditional moulds that boot door is carried out bound edge;

Fig. 4 is the dynamic model original state of the utility model;

The state of dynamic model when Fig. 5 is the bound edge termination;

Fig. 6 is the movement locus figure of bound edge cutter piece in the bound edge process.

Each label is among the figure: 1, inner panel; 2, outside plate; 3, precompressed is inserted; 4, bound edge cutter piece; 5, wedge body; 6, return spring; 7, anti-fall pad; 8, safety screw; 9, rotation axis support; 10, rotating shaft; 11, sensor block; 12, drive block; 13, product; 14, stop bit limited block; 15, initial bit limited block.

The specific embodiment

The utility model designs for the bound edge fold that solves traditional wrapping mold and cause product easily, the problem that lacks material, and the measure of taking is to change the application of force direction of bound edge cutter piece to product.

Referring to Fig. 4, Fig. 5; The utility model is made up of dynamic model (being bound edge cutter piece 4) and cover half (not shown); Dynamic model (being bound edge cutter piece 4) is connected with upper bolster through Wedge mechanism, and Wedge mechanism comprises wedge body 5, shaft seating 9, rotating shaft 10, return spring 6, safety screw 8, anti-fall pad 7, revolves sensor block 11, drive block 12, stop bit limited block 14 and initial bit limited block 15.

Referring to Fig. 4, under the original state, wedge body 5 leans on initial bit limited block 15 spacing, wedge body 5 with no longer rotate after initial bit limited block 15 contacts because of gravity.

The course of work of the utility model is:

Referring to Fig. 5; During the punching press product, whole Wedge mechanism moves downward, when sensor block 11 with after drive block 12 contacts; Drive block 12 is given 5 one active forces that make progress of wedge body; This active force promotes wedge body 5 along rotating shaft 10 rotations, and wedge body 5 drives 4 rotations of bound edge cutter piece, realizes along product surface normal bound edge.

In the punching course, the movement locus of bound edge cutter piece 4 is as shown in Figure 6, and bound edge cutter piece 4 is crossed rotation 8 degree in whole motion process; Select final 4 states, the position when wherein state A spends for rotation 6.5, the position when state B spends for rotation 7; Position when state C spends for rotation 7.5, the position when state D is final state, visible by Fig. 6; The direction of motion of bound edge cutter piece 4 is product normal to a surface direction, so can realize along product surface normal bound edge.

When punching press finishes, be fixed on the stop bit limited block 14 restriction wedge bodies 5 no longer rotations on the upper bolster, bound edge cutter piece 4 is accomplished bound edge.Return spring 6 assurance wedge bodies 5 are got back to initial position, carry out circulation next time.

The upper end of safety screw 8 is provided with anti-fall pad 7; Safety screw 8 is positioned at the slotted hole with the upper mould seat in the course of work; If Wedge mechanism separates with upper bolster, then can be suspended on the upper bolster through safety screw 8, prevent that operating personnel from being injured by a crashing object by Wedge mechanism.

Claims

1. A hemming mold, characterized in that, the mold is composed of a fixed mold and a movable mold, and the movable mold is a hemming knife block (4), which is connected with the upper mold base through a wedge mechanism, and the fixed mold is Die is fixed on the lower mold base and corresponds to the edge-wrapping knife block (4).

2. The hemming mold according to claim 1, characterized in that, the wedge mechanism includes a wedge body (5) and a rotating shaft support (9); the rotating shaft support (9) is located on the upper mold base below and fixedly connected with the upper mold base, the wedge body (5) is located under the rotating shaft support (9) and is connected to the rotating shaft support (9) through the horizontal rotating shaft (10), and the hemming knife block (4) It is fixed on the lower surface of the wedge body (5), and an induction block (11) is also fixed on the lower surface of the wedge body (5). The induction block (11) and the hemming knife block (4) respectively Located on both sides of the rotating shaft (10), the drive block (12) of the wedge mechanism is fixed on the lower mold base and corresponds to the induction block (11).

3. The hemming mold according to claim 2, characterized in that the composition also includes an initial position limit block (15) and an end position limit block (14) of the wedge body (5), and the initial position limit block (14) The limit block (15) is fixed on the rotating shaft support (9) and located above the hemming knife block (4); the stop position limit block (14) is fixed on the upper mold base and located on the drive block (12 ) above.

4. The hemming mold according to claim 3, characterized in that, a return spring (6) is provided between the wedge body (5) and the upper mold base, and the return spring (6) is located on the drive block (12) ABOVE.

5. The hemming mold according to claim 4, characterized in that a safety screw (8) is provided on the wedge body (5), and the lower end of the safety screw (8) is fixed to the wedge body (5) connected, the upper end is movably connected with the upper die base.