CN219335466U - Control bending shaping resilience warp frock - Google Patents

Abstract

The utility model discloses a tool for controlling bending, forming and rebound deformation, which comprises the following steps: the device comprises a male die, a female die, an adjusting retainer ring, an adjusting screw, a return spring and a lower die fixing seat; the lower part of the male die is provided with a male die end, and the width of the lower part of the male die end is larger than that of the upper part of the male die end; the female die comprises two female die split bodies, the female die split bodies are bent, the bending angle is smaller than 90 degrees, the split positions of the two female die split bodies are opposite, and the outer side walls of the female die split bodies are respectively provided with threaded blind holes; the lower die fixing seat is provided with two vertical plates at the upper part, and the vertical plates are provided with vertical plate through holes; the female die is arranged between the two vertical plates, the front end of the adjusting screw rod penetrates through the adjusting check ring, the return spring and the vertical plate through hole to be connected to the threaded blind hole, and the return spring is arranged between the two adjusting check rings. The utility model can control and reduce the rebound deformation of the workpiece after bending, has high one-time bending forming efficiency for the workpiece, and improves the bending qualification rate of the workpiece.

Description

Control bending shaping resilience warp frock

Technical Field

The utility model belongs to the field of sheet metal bending tools, and particularly relates to a tool for controlling bending, forming and rebound deformation.

Background

At present, a bending manufacturing method adopted for bending a workpiece is to bend the workpiece to be molded by using a bending tool, and then correct the workpiece by manpower or other means; the sheet metal is bent, the bending angle is not in place, the bending size and the bending fillet radius error are large, and the main reason is that the bending rebound deformation is caused, and the rebound deformation after bending is different because the thickness, the geometric dimension, the material yield strength and the elastic modulus of the sheet metal are different.

The existing bending manufacturing method increases the correction difficulty and labor intensity after bending, increases the production cost and reduces the production efficiency due to unreasonable design of the bending tool.

Disclosure of Invention

The utility model aims to provide a tool for controlling the rebound deformation of bending forming, which can control and reduce the rebound deformation of a workpiece after bending, has high one-time bending forming efficiency for the workpiece and improves the bending qualification rate of the workpiece.

The technical proposal is as follows:

control shaping resilience deformation frock of bending includes: the device comprises a male die, a female die, an adjusting retainer ring, an adjusting screw, a return spring and a lower die fixing seat; the lower part of the male die is provided with a male die end, and the width of the lower part of the male die end is larger than that of the upper part of the male die end; the female die comprises two female die split bodies, the female die split bodies are bent, the bending angle is smaller than 90 degrees, the split positions of the two female die split bodies are opposite, and the outer side walls of the female die split bodies are respectively provided with threaded blind holes; the lower die fixing seat is provided with two vertical plates at the upper part, and the vertical plates are provided with vertical plate through holes; the female die is arranged between the two vertical plates, the front end of the adjusting screw rod penetrates through the adjusting check ring, the return spring and the vertical plate through hole to be connected to the threaded blind hole, and the return spring is arranged between the two adjusting check rings.

Furthermore, both sides of the lower part of the male die end are arc-shaped, the bending parts of the inner side and the outer side of the female die are arc-shaped respectively, and the joint of the vertical plate and the lower die fixing seat adopts arc transition.

Further, the arc radius of the male die end is 87 degrees, the arc radius of the inner side wall of the female die at the bending position is 87 degrees, the arc radius of the outer side wall is 86 degrees, and the arc radius of the connecting position of the vertical plate and the lower die fixing seat is 86 degrees.

Further, the two vertical plates are parallel to each other, and the vertical plates are perpendicular to the top plane of the lower die fixing seat.

Compared with the prior art, the utility model has the following advantages:

1. the utility model can control and reduce the rebound deformation of the workpiece after bending, has high one-time bending forming efficiency for the workpiece, improves the bending qualification rate of the workpiece, and effectively improves the bending quality and the production efficiency of the workpiece.

The utility model is designed and manufactured by taking the bending rebound angle and the rebound fillet variation into consideration in advance, compensates the size and the angle deviation of the workpiece caused by rebound through the adjustment of the female die, simultaneously utilizes the adjusting screw and the return spring to facilitate the workpiece to exit the female die cavity, simply, conveniently and rapidly completes the bending forming work, and solves the problem of bending rebound deformation. The bending angle change can be controlled and regulated, so that the material rebound deformation requirements with different yield strengths are met, and the influence of rebound deformation on the technical requirements and the use requirements of workpieces is solved.

2. The utility model has scientific structure and simple and convenient operation, reduces the subsequent correction procedure increased by rebound deformation, and reduces the manual correction cost. The bending forming tool design structure can be simplified, the tool production and manufacturing cost is reduced, and the requirements on functions and precision of the folding bending machine tool are simplified.

3. The utility model has the advantages of easy disassembly, maintenance and replacement.

4. The utility model can be popularized to single-angle, U-shaped and other bending serialization of shapes and specifications, and mass and high-efficiency production.

Drawings

FIG. 1 is a schematic structural view of a tooling for controlling bending, forming and rebound deformation in the utility model;

fig. 2 is a schematic view of the structure of the male die of the present utility model;

FIG. 3 is a schematic diagram of the structure of the female die in the utility model;

fig. 4 is a schematic view of a state before a blank material of a punch lower platen plate enters a female die;

fig. 5 is a schematic view of the state of the blank of the punch lower platen plate entering the female die in the present utility model.

Detailed Description

The following description fully illustrates the specific embodiments of the utility model to enable those skilled in the art to practice and reproduce it.

Fig. 1 is a schematic structural diagram of a tooling for controlling bending, forming and rebound deformation in the utility model.

Control shaping resilience deformation frock of bending includes: the die comprises a male die 1, a female die 2, an adjusting retainer ring 3, an adjusting screw 4, a return spring 5 and a lower die fixing seat 6. The bending forming rebound deformation tool is controlled to move downwards by utilizing a sliding block of a bending machine tool to drive a male die 1 to move downwards, a workpiece is bent in a female die 2, and bending forming work is completed.

As shown in fig. 2, a schematic diagram of the structure of the male die 1 in the present utility model is shown.

The lower part of the male die 1 is provided with a male die end 11, two sides of the lower part of the male die end 11 are arc-shaped, and the width of the lower part of the male die end 11 is larger than that of the upper part.

In the preferred embodiment, the radius of the arc of the punch head 11 is 87 °.

Fig. 3 is a schematic structural view of the female die 2 according to the present utility model.

The female die 2 comprises two female die split bodies 21, the female die split bodies 21 are in a bent shape (L shape), the bending angle is smaller than 90 degrees, and the bending positions on the inner side and the outer side are respectively arc-shaped.

In the preferred embodiment, the radius of the arc of the inner side wall at the bending position is 87 degrees, and the radius of the arc of the outer side wall is 86 degrees.

The two female die split bodies 21 are opposite in position, and threaded blind holes 22 are respectively formed in the outer side walls.

The lower die fixing base 6 is provided with two vertical plates 61 at the upper part, and the vertical plates 61 are provided with vertical plate through holes.

The female die 2 is arranged between two vertical plates 61, and the front end of the adjusting screw 4 passes through the adjusting check ring 3, the return spring 5 and the vertical plate through hole to be connected with the threaded blind hole 22. The return spring 5 is located between the two adjusting collars 3.

The two vertical plates 61 are parallel to each other, and the vertical plates 61 are perpendicular to the top plane of the lower die fixing seat 6. The joint of the vertical plate 61 and the lower die fixing seat 6 adopts arc transition, and the arc radius of the joint of the vertical plate 61 and the lower die fixing seat 6 is 86 degrees.

As shown in fig. 4, a schematic diagram of a state before a punch 1 presses a blank 7 of a plate into a die 2 in the present utility model; fig. 5 is a schematic view showing a state in which the punch 1 presses a blank 7 into the die 2.

The using method is as follows:

1. determining a gap between the male die 1 and the female die 2 according to the thickness and the tensile strength of the material of the bent workpiece;

2. determining the rebound angle of the two female die split bodies 21 and the arc-shaped radius of the bending part according to the thickness, the yield strength and the elastic modulus of the bent workpiece material, and further determining the geometric shape size of the male die 1 and the female die 2 by the arc-shaped radius of the male die end 11;

3. the upper end of the male die 1 is connected with a slide block of a bending machine tool, a lower die fixing seat 6 is fixed on a workbench, the front end of an adjusting screw 4 passes through an adjusting check ring 3, a return spring 5 and a vertical plate through hole to be connected with a threaded blind hole 22, the female die 2 is connected between two vertical plates 61, and a flat blank 7 is placed on the upper part of the female die 2;

4. the male die 1 is driven by the sliding block to descend, the male die end 11 extrudes the flat blank 7, the flat blank 7 is bent and enters the cavity of the female die 2, the flat blank 7 presses the lower parts of the two female die split bodies 21, and the two female die split bodies 21 continue to bend the flat blank 7, so that the flat blank 7 is deformed into a required shape to form a formed workpiece;

under the action of the downward pressure, the two female die split bodies 21 continue to bend the flat blank 7, so that the difficulty of bending rebound deformation is solved. And setting the rebound fillet radius and rebound angle according to the yield strength of the workpiece material, and adjusting the bending angle by entering the depth of the female die 2 through the male die 1 to fulfill the aim of controlling the bending, forming and rebound.

5. The slide block drives the male die 1 to move upwards, and under the action of the return spring 5 and the adjusting screw 4, the two female die split bodies 21 are opened outwards, so that the male die end 11 and the formed workpiece are conveniently separated from the female die 2; the male die 1 brings the formed workpiece away from the female die 2, and takes down the formed workpiece to finish bending and forming work.

The tops of the two female die split bodies 21 are opened through the return spring 5 and the adjusting screw 4, so that a formed workpiece is conveniently taken out, and one-step forming of extrusion of the formed workpiece is realized.

The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. As the present utility model may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims (4)

1. Control shaping resilience deformation frock of bending, its characterized in that includes: the device comprises a male die, a female die, an adjusting retainer ring, an adjusting screw, a return spring and a lower die fixing seat; the lower part of the male die is provided with a male die end, and the width of the lower part of the male die end is larger than that of the upper part of the male die end; the female die comprises two female die split bodies, the female die split bodies are bent, the bending angle is smaller than 90 degrees, the split positions of the two female die split bodies are opposite, and the outer side walls of the female die split bodies are respectively provided with threaded blind holes; the lower die fixing seat is provided with two vertical plates at the upper part, and the vertical plates are provided with vertical plate through holes; the female die is arranged between the two vertical plates, the front end of the adjusting screw rod penetrates through the adjusting check ring, the return spring and the vertical plate through hole to be connected to the threaded blind hole, and the return spring is arranged between the two adjusting check rings.

2. The tool for controlling bending, forming and rebound deformation as claimed in claim 1, wherein both sides of the lower part of the male die end are arc-shaped, the bending parts of the inner side and the outer side of the female die are arc-shaped respectively, and the joint of the vertical plate and the lower die fixing seat adopts arc transition.

3. The tooling for controlling bending forming rebound deformation according to claim 2, wherein the arc radius of the male die end is 87 degrees, the arc radius of the inner side wall of the female die at the bending position is 87 degrees, the arc radius of the outer side wall is 86 degrees, and the arc radius of the connecting position of the vertical plate and the lower die fixing seat is 86 degrees.

4. The tooling for controlling bending forming rebound deformation of claim 1, wherein the two vertical plates are parallel to each other, and the vertical plates are perpendicular to the top plane of the lower die fixing seat.

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