CN112108540A

CN112108540A - Bending forming device

Info

Publication number: CN112108540A
Application number: CN201910538780.8A
Authority: CN
Inventors: 底亚新; 柴书杰; 陈涛; 韩永辉
Original assignee: Henan Senyuan Heavy Industry Co Ltd
Current assignee: Henan Senyuan Heavy Industry Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-12-22

Abstract

The invention provides a bending forming device, which comprises an upper die and a lower die, wherein the lower die comprises a base and two concave modules, at least one of the two concave modules is movably arranged on the base, a cross rod is fixed on one of the two opposite side walls of the two concave modules, a guide through hole for the cross rod to pass through and matched with the cross rod in a guide and moving manner is formed in the other side wall of the two opposite side walls of the concave modules so as to guide the moving concave modules when the distance between the two concave modules is adjusted, the cross rod and the two concave modules form a concave die together, and a set distance is formed between the upper surface of the cross rod and the upper surface of the concave module so as to limit the downward moving. The invention has the beneficial effects that: when the workpiece deforms to the position of the cross rod, the upper die cannot move downwards any more due to the blocking of the cross rod, so that the downward movement stroke of the upper die is limited, the bending degree of the workpiece is controlled, and the bending quality is guaranteed to be qualified; the opening width of the female die is adjustable, so that workpieces with more bending radii can be pressed, and the universality of the die is improved.

Description

Bending forming device

Technical Field

The invention relates to a bending forming device.

Background

The groove width of the lower die of the traditional bending forming device is fixed, each lower die can only bend a plate with one radian, the function is single, a large number of dies are generally required to be arranged for meeting the process requirements of various bending radii in actual production, the manufacturing cost of the dies is higher, the dies are required to be replaced repeatedly, and the production efficiency is low.

Therefore, the bending forming device with adjustable groove width of some lower dies appears at present, for example, the chinese utility model patent that the publication number is CN201223903Y discloses bend the mould (bending forming device promptly), the device includes mould and lower mould, wherein go up the mould and include die shank and terrace die, the lower mould includes the die base and fixes two die adjustment blocks on the die base, form the die between two die adjustment blocks, and the die adjustment block is adjustable for the position of die base, thereby can change the opening width of die, more bending radius's work piece has been pressed out, the commonality of die has been improved.

However, the female die of the bending forming device is formed by two female die adjusting blocks, when the male die moves downwards to bend the workpiece, the bending degree of the workpiece is determined by the downward movement stroke of the male die, and due to the lack of a limiting structure, the workpiece is easily bent to be out of position or excessively bent, so that the bending quality of the workpiece is unqualified, secondary reworking or correction is needed, and the production efficiency and the production quality are affected.

Disclosure of Invention

The invention aims to provide a bending forming device which can control the bending degree and ensure the qualified bending quality.

In order to achieve the purpose, the bending forming device adopts the following technical scheme:

the utility model provides a bending forming device, includes mould and lower mould, the lower mould includes that base and two intervals set up the die piece that is used for supporting the work piece on the base, form the deformation space that supplies the work piece to receive crooked deformation when last mould downward force between two female modules, at least one mobilizable installation in two female modules is on the base with the interval between two female modules of adjustment, be fixed with the horizontal pole on one of them lateral wall in two female module relative lateral walls, be provided with on another lateral wall and supply the horizontal pole passes and with horizontal pole direction removal complex direction perforation to form the direction to the die piece that removes when adjusting the interval between two female modules, the horizontal pole forms the die with two die pieces jointly, has the distance of settlement between the upper surface of horizontal pole and the upper surface of female module, form spacingly to the stroke that moves down of going up the mould.

The technical scheme of the bending forming device has the beneficial effects that: the cross rod and the two female die blocks jointly form a female die, and a set distance is reserved between the upper surface of the cross rod and the upper surface of the female die block, so that when a workpiece deforms to the position of the cross rod, the upper die cannot move downwards any more due to the blocking of the cross rod, the downward movement stroke of the upper die is limited, the bending degree of the workpiece can be controlled, and the bending quality is guaranteed to be qualified. Meanwhile, the cross rod is movably matched with the guide through hole in the other side wall in a guide mode, so that the cross rod can be supported on the side wall, a stable and reliable female die structure is formed by the cross rod and the two female die blocks, the movable female die blocks can be guided, and position deviation of the movable female die blocks is avoided.

Furthermore, in order to simplify the structure of the bending forming device, reduce the weight of the movable concave module and facilitate the movement of the movable concave module, one of the two concave modules is fixed on the base to form the fixed concave module, the other concave module is movably arranged on the base to form the movable concave module, one end of the cross rod is fixed on the side wall of the fixed concave module, the other end of the cross rod penetrates through the side wall of the movable concave module, and the movable concave module is provided with the guide through hole.

Furthermore, in order to conveniently realize the connection between the movable concave module and the base and conveniently adjust the position of the movable concave module, the movable concave module is L-shaped, the movable concave module comprises a vertical section for supporting a workpiece and allowing a cross rod to pass through and a horizontal section fixedly connected with the base, the horizontal section is fixedly connected with the base in a detachable mode through a bolt and a nut, a bolt through hole is formed in the horizontal section, a T-shaped groove which is used for allowing the head of the bolt or the nut to be embedded into the base and matched with the base in a rotation stopping mode is formed in the base, and the T-shaped groove is a long groove which is consistent with the extending direction of the cross rod, so that the head of the bolt or the nut can move in the T-shaped groove.

Furthermore, in order to simplify the structure, the bolt can be conveniently adjusted while the fixing effect is ensured, only one bolt perforation, one bolt and only one nut are provided, the bolt perforation is arranged in the middle of the horizontal section, the bolt is positioned under the cross rod, the nut is positioned in the T-shaped groove, and the distance from the cross rod to the horizontal section is greater than the height of the head of the bolt, so that the head of the bolt can be conveniently screwed.

Furthermore, in order to facilitate the knowledge of the distance value between the two concave modules so as to master the bending deformation degree of the workpiece, the cross rod is provided with scales for indicating the distance value between the two concave modules.

Furthermore, in order to simplify the structure of the upper die and ensure the bending quality, the upper die comprises a cylindrical male die and a fixing plate fixed on the upper part of the cylindrical male die.

Drawings

FIG. 1 is a front view of a bending apparatus according to the present invention;

FIG. 2 is a left side view of the bending apparatus of the present invention;

FIG. 3 is a plan view of the bending apparatus of the present invention.

In the figure: 1. an upper die; 11. a fixing plate; 12. a cylindrical male die; 2. fixing the female module; 3. a movable female module; 4. a base; 5. a cross bar; 51. calibration; 6. a bolt; 7. a nut; t-shaped grooves.

Detailed Description

One embodiment of the bending and forming device of the present invention is shown in fig. 1 to 3, and includes an upper die 1 and a lower die, where the upper die 1 includes a cylindrical punch 12 and a retainer 11 welded and fixed on the upper portion of the cylindrical punch 12, and the width of the retainer 11 and the width of the cylindrical punch 12 in the front-rear direction are equal.

The lower die comprises a base 4 and a left female die block and a right female die block which are arranged on the base 4 at intervals and used for supporting a workpiece (the workpiece is not shown in the figure), wherein the left female die block is a fixed female die block 2 welded and fixed on the base 4, the right female die block is movably arranged on the base 4 and is a movable female die block 3, and a deformation space for bending deformation of the workpiece under the downward acting force of the cylindrical male die 12 is formed between the fixed female die block 2 and the movable female die block 3.

As shown in fig. 1, the movable concave module 3 is L-shaped, including a vertical section for supporting a workpiece and a horizontal section fixedly connected with the base 4, the horizontal section is detachably and fixedly connected with the base 4 through a bolt 6 and a nut 7, a bolt through hole is provided on the horizontal section, a T-shaped groove 8 for embedding the nut 7 and fitting the nut to stop rotation is provided on the base 4, and the T-shaped groove 8 is a long groove extending in the left-right direction, so that after the bolt 6 and the nut 7 are loosened, the nut 7 can move left and right in the T-shaped groove 8, thereby adjusting the left and right fixing positions of the movable concave module 3, and further changing the distance between the fixed concave module 2 and the movable concave module 3.

As shown in fig. 1 and 3, a cross bar 5 is welded and fixed on a side wall of the fixed concave module 2 opposite to the movable concave module 3, the other end of the cross bar 5 penetrates through the side wall of the movable concave module 3, a through hole for the cross bar 5 to penetrate through is formed in the side wall, namely a vertical section, of the movable concave module 3, and the through hole and the cross bar are guided and movably matched to form a guide through hole, so that when the movable concave module 3 moves left and right, the cross bar 5 can guide the movable concave module 3. And the scale 51 is arranged on the cross rod 5, so that the distance value between the fixed concave module 2 and the movable concave module 3 can be accurately mastered according to the scale 51, and the accurate position adjustment of the movable concave module 3 is ensured.

As shown in fig. 2 and 3, only one bolt through hole, one bolt 6 and one nut 7 are provided in the embodiment, the T-shaped groove 8 is provided, the bolt through hole is formed in the middle of the horizontal section of the movable female module 3, and the bolt 6 is located right below the cross bar 5, so that the fixing effect is ensured, the number of fasteners is minimum, the fixing structure is simplest, the adjustment is convenient and fast, and the movable female module 3 cannot deviate in the adjustment process due to the guiding effect of the cross bar 5. And as shown in fig. 1, the distance from the cross bar 5 to the horizontal section is far greater than the height of the head of the bolt 6, that is, there is enough space between the cross bar 5 and the horizontal section, so that the head of the bolt 6 can be screwed conveniently.

The female die of the bending forming device is formed by the fixed female die block 2, the movable female die block 3 and the cross rod 5, as shown in fig. 1, a set distance is reserved between the upper surface of the cross rod 5 and the upper surfaces of the two female die blocks, so that when a workpiece deforms to the position of the cross rod 5, the upper die cannot move downwards any more due to the blocking of the cross rod 5, the downward movement stroke of the upper die is limited, the bending degree of the workpiece can be controlled, and the bending quality is guaranteed to be qualified.

Because the cross rod 5 belongs to a part of the female die, when a workpiece deforms to contact the cross rod 5, the cross rod 5 can also receive downward acting force, so that the cross rod 5 is matched with the side wall of the movable female die block 3 in a guiding and moving manner, the movable female die block 3 equivalently supports the cross rod 5, and the cross rod 5 and the two female die blocks can be ensured to form a stable and reliable female die structure.

The working principle of the bending forming device is as follows:

during the use, according to the thickness of the work piece of waiting to bend and the demand of the degree of bending, adjust the interval between fixed concave module 2 and the concave module 3 of activity, directly twist the head of bolt 6 during the adjustment, because nut 7 and T-slot 8 spline fit, so can unscrew bolt 6 and nut 7, just then can the horizontal slip activity concave module 3, according to the scale on horizontal pole 5, adjust the concave module 3 of activity to suitable position, then twist the head of bolt 6, screw up bolt 6 and nut 7, thereby fix the concave module 3 of activity on base 4.

Then the workpiece is placed at the tops of the fixed concave module 2 and the movable concave module 3, when the upper die moves downwards, the workpiece is extruded by the cylindrical convex die 12, so that the workpiece is bent and deformed, the cylindrical convex die 12 can be formed at one time, the bending times are reduced, and the bending quality and the working efficiency are effectively improved. Of course, the distance between the fixed concave module 2 and the movable concave module 3 can also be changed for multiple times in the bending process, and the final size of the workpiece can be achieved through multiple times of bending; or the profiling precision of the workpiece is ensured by correcting the bending for multiple times.

In other embodiments of the bending and forming device, the upper die can be integrally formed; the upper die can also be composed of a semi-cylindrical male die and a fixing rod fixed at the top of the semi-cylindrical male die.

In other embodiments of the bending device, the cross bar may not have scales.

In other embodiments of the bending and forming device, the number of the bolt through holes, the number of the bolts and the number of the nuts can be two respectively, namely, two sets of fasteners are provided, and two corresponding T-shaped grooves are provided.

In other embodiments of the bend-forming apparatus, the head of the bolt may be disposed within the T-shaped slot with the nut on the outside.

In other embodiments of the bending forming device, the movable female die block may not be L-shaped, for example, the movable female die block may be a rectangular block structure as the fixed female die block, and at this time, the movable female die block is directly provided with a bolt through hole, the bolt through hole is relatively long, and the guide through hole of the cross rod needs to be left, and the bolt through hole needs to be provided with a counter bore for conveniently supporting the workpiece.

In other embodiments of the bending forming device, the base may not be provided with a T-shaped long groove, for example, the base may be provided with a plurality of spaced threaded holes, and the bolt may pass through the movable female die block and then be directly connected to the base by a thread, so that a nut is omitted, and the fixed position of the movable female die block may be changed by the plurality of threaded holes.

In other embodiments of the bending forming device, the movable female die block may not be fixed on the base through a bolt, for example, an air cylinder may be disposed on the base, a push rod of the air cylinder is directly connected with the movable female die block, and the position of the movable female die block is changed by extension and retraction of the push rod of the air cylinder.

In other embodiments of the bending device, the transverse bar can also be fixed to the movable female die block, the other end of the transverse bar passes through the fixed female die block, and the guide through hole is arranged on the fixed female die block.

In another embodiment of the bending apparatus, the left female mold block may be provided as a movable female mold block, and the right female mold block may be provided as a fixed female mold block.

In other embodiments of the bending apparatus, both of the two female mold blocks may be configured as movable female mold blocks, and at this time, one of the female mold blocks may be adjusted first, and after the position of the female mold block is fixed, the position of the other female mold block may be adjusted.

Claims

1. The utility model provides a forming device bends, includes mould and lower mould, and the lower mould includes that base and two intervals set up the die piece that is used for supporting the work piece on the base, forms the deformation space that supplies the work piece bending deformation when mould down effort on the work piece between two die pieces, and at least one mobilizable in two die pieces is installed on the base with the interval between two die pieces of adjustment, its characterized in that: a cross rod is fixed on one of the two opposite side walls of the two concave modules, a guide through hole for the cross rod to penetrate through and to be matched with the cross rod in a guide and moving mode is formed in the other side wall of the two opposite side walls of the concave modules, so that the two concave modules can be guided when the distance between the two concave modules is adjusted, the cross rod and the two concave modules form a concave die together, a set distance is reserved between the upper surface of the cross rod and the upper surface of the concave modules, and the downward moving stroke of the upper die is limited.

2. The bend forming apparatus of claim 1, wherein: one of the two concave modules is fixed on the base to form a fixed concave module, the other concave module is movably arranged on the base to form a movable concave module, one end of the cross rod is fixed on the side wall of the fixed concave module, the other end of the cross rod penetrates through the side wall of the movable concave module, and the movable concave module is provided with the guide through hole.

3. The bend forming apparatus of claim 2, wherein: the movable female module is L-shaped, the movable female module comprises a vertical section and a horizontal section, the vertical section is used for supporting a workpiece and allowing a cross rod to penetrate through the horizontal section, the horizontal section is fixedly connected with the base in a detachable mode through bolts and nuts, bolt through holes are formed in the horizontal section, a T-shaped groove is formed in the base and used for enabling the head of each bolt or each nut to be embedded into the corresponding bolt or each nut to be in rotation stopping fit with the corresponding bolt or each nut, and the T-shaped groove is a long groove which is consistent with the extending direction of the cross rod, so that the head of each bolt or each nut can move in the corresponding.

4. The bend forming apparatus of claim 3, wherein: the bolt through hole, the bolt and the nut are only one respectively, the bolt through hole is formed in the middle of the horizontal section, the bolt is located right below the cross rod, the nut is located in the T-shaped groove, and the distance from the cross rod to the horizontal section is larger than the height of the head of the bolt so as to facilitate screwing of the head of the bolt.

5. The bending forming device according to any one of claims 1 to 4, wherein: the cross rod is provided with scales for indicating the distance value between the two concave modules.

6. The bending forming device according to any one of claims 1 to 4, wherein: the upper die comprises a cylindrical male die and a fixing plate fixed on the upper part of the cylindrical male die.