CN218224324U

CN218224324U - Bending mechanism of forming die

Info

Publication number: CN218224324U
Application number: CN202222584033.8U
Authority: CN
Inventors: 王权兵; 王杰
Original assignee: Guangdong Galanz Enterprises Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-01-06
Anticipated expiration: 2032-09-27

Abstract

A bending mechanism of a forming die comprises an upper die base, a lower die base and a first baffle, wherein a bending mechanism for bending a workpiece into a U shape is arranged between the upper die base and the lower die base; when the die is closed, the sliding block is matched with the swinging block, and the swinging block tilts relative to the first baffle and is matched with the first baffle under the action of the sliding block, so that the workpiece bends in a U shape. Specifically, when the die is closed, the swing block tilts under the action of the sliding block and completes the U-shaped bending action of the semi-finished workpiece together with the first baffle, and the abrasion and deformation of the workpiece in the U-shaped bending process are avoided through the combined structure of the sliding block and the swing block; owing to consider the predeformation volume of work piece, adjust the angle of the curved U type of product through the design pendulum piece, guarantee the straightness that hangs down of U type, the utility model has the characteristics of simple structure and good reliability etc.

Description

Bending mechanism of forming die

Technical Field

The utility model relates to a stamping die's technical field especially relates to a forming die's bending mechanism.

Background

In the traditional hardware U-shaped die folded by 90 degrees, the die is directly folded into a U shape by upper and lower dies according to the 90-degree design of a product. The product is easy to scratch and deform, and cannot meet the design requirement of the product due to the rebound of the product, and the U-shaped angle is usually larger than 90 degrees.

Chinese patent No. CN 206009592U discloses a bending die in 2016, and specifically discloses a bending die comprising an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die plate, two sides of the bottom of the upper die plate are respectively provided with a slider in sliding connection with the upper die plate, and the slider is used for bending a workpiece to be processed; lower die component includes the lower bolster, be equipped with on the lower bolster rather than become about sliding connection take off the board down, take off the board down and be used for placing and wait to process the work piece, the both sides of taking off the board down all are equipped with the pendulum piece rather than the looks adaptation, the pendulum piece with the lower bolster becomes swing joint, the pendulum piece is used for the extension to wait to process bending that the work piece formed, works as take off down the board down with the pendulum piece of both sides be in same horizontal plane, take off down an organic whole structure that the pendulum piece formed of board and both sides with wait to process bending looks adaptation that the work piece formed, nevertheless there is still the type of book U in-process work piece in this structure and scotch and deformation defect.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a forming die's bending mechanism is in order to overcome the weak point among the prior art, and this bending mechanism cooperatees through slider and pendulum piece, effectively avoids the product scotch and warp, guarantees the straightness that hangs down of U type, its simple structure and good reliability.

The bending mechanism of the forming die comprises an upper die holder, a lower die holder and a first baffle, wherein a bending mechanism for bending a workpiece into a U shape is arranged between the upper die holder and the lower die holder, the bending mechanism comprises a sliding block assembly and a swinging block assembly, the sliding block assembly comprises a sliding block, the swinging block assembly comprises a swinging block, the sliding block is arranged on the upper die holder, and the swinging block is arranged on the lower die holder; when the die is assembled, the sliding block is matched with the swing block, and the swing block tilts relative to the first baffle and is matched with the first baffle under the action of the sliding block, so that the workpiece bends to be U-shaped.

The sliding block assembly further comprises an ejector rod, a pressing plate, a first elastic piece and a headless screw, the pressing plate is fixedly arranged on the upper die base, the headless screw is installed on the pressing plate, one end of the first elastic piece is abutted to the headless screw, the other end of the first elastic piece is abutted to one end of the ejector rod, and the other end of the ejector rod penetrates through the upper die base and then is abutted to the sliding block; when the die is closed, the sliding block pushes the ejector rod to move towards the direction of the pressing plate and compress the first elastic piece, and when the die is opened, the sliding block pushes the sliding block to reset under the action of elastic restoring force of the ejector rod and the first elastic piece.

The forming die further comprises a first upper die insert, the first upper die insert is fixedly arranged on the upper die base, and the sliding block and the first upper die insert slide in a matched mode through a dovetail groove.

The forming die further comprises a second upper die insert, and the second upper die insert is arranged between the first upper die insert and the sliding block and used for controlling the sliding stroke of the sliding block.

The forming die further comprises a lower die material pressing back plate, a lower die material pressing plate and a second elastic piece, wherein the lower die material pressing back plate, the lower die material pressing plate and the second elastic piece are all arranged on the lower die base, and during die assembly, the lower die material pressing back plate and the lower die material pressing plate respectively move to a set distance under the action of the second elastic piece.

The forming die further comprises an equal-height sleeve and a lower backing plate, a connecting hole is formed in the lower die pressing back plate, a first clearance hole is formed in the lower backing plate, a second clearance hole is formed in the lower die base, the equal-height sleeve is installed on the first clearance hole and the second clearance hole, and a screw is fixedly connected with the connecting hole in the lower die pressing back plate through the equal-height sleeve so as to control the moving strokes of the lower die pressing back plate and the lower die pressing plate.

The swing block assembly further comprises at least two swing seats, and the at least two swing seats are fixedly arranged on the two side faces of the swing block through pins and/or screws respectively.

The forming die further comprises a second baffle and an inner guide pillar, a bolt is arranged on the lower die pressing back plate, the second baffle is connected with the bolt in a matched mode and is installed on the lower die pressing back plate through a pin and/or a screw, a mounting hole matched with the inner guide pillar is formed in the swinging seat, and the inner guide pillar penetrates through the second baffle and then is connected with the mounting hole in the swinging seat in a matched mode.

The first baffle plate is fixed on the lower cushion plate through pins and/or screws.

And the sliding block is provided with a pressing part for bending the cambered surface shape of the workpiece.

The utility model discloses a forming die's bending mechanism, forming die includes upper die base, die holder and first baffle, be equipped with between upper die base and the die holder and be used for bending the bending mechanism that the work piece is the U type, bending mechanism includes slider component and pendulum piece subassembly, slider component includes the slider, pendulum piece subassembly includes the pendulum piece, when the compound die state, the pendulum piece perks under the effect of slider, accomplish the action of bending the U type to semi-manufactured goods work piece together with first baffle, through the slider, the pendulum piece structure that combines together, scotch, the deformation in the work piece U type process of rolling over are avoided; because the pre-deformation amount of the workpiece is considered, the angle of the bent U-shaped part of the product is adjusted by designing the swing block, the perpendicularity of the U-shaped part is ensured, and the device has the characteristics of simple structure, strong reliability and the like.

Drawings

Fig. 1 is a schematic view of a mold opening state according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a mold clamping state according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of the upper die base and the sliding block assembly in an embodiment of the present invention.

Fig. 4 is a schematic structural view of the lower die holder, the swing block assembly, the first baffle, the second baffle, the lower die pressing back plate and the lower die pressing plate in an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 4 is:

1-upper die holder, 2-lower die holder, 201-second clearance hole, 3-first baffle, 4-workpiece, 5-slide block assembly, 501-slide block, 5011-pressing part, 502-ejector rod, 503-pressing plate, 504-first elastic part, 505-headless screw, 6-swinging block assembly, 601-swinging block, 7-first upper die insert, 8-second upper die insert, 9-lower die pressing backing plate, 901-connecting hole, 10-lower die pressing plate, 11-second elastic part, 12-equal-height sleeve, 13-lower backing plate, 1301-first clearance hole, 14-second baffle, 15-inner guide pillar.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 4, in an embodiment, a bending mechanism of a forming die is provided, the forming die includes an upper die holder 1, a lower die holder 2 and a first baffle 3, a bending mechanism for bending a workpiece 4 into a U shape is disposed between the upper die holder 1 and the lower die holder 2, the bending mechanism includes a slider assembly 5 and a pendulum block assembly 6, the slider assembly 5 includes a slider 501, the pendulum block assembly 6 includes a pendulum block 601, the slider 501 is disposed on the upper die holder 1, and the pendulum block 601 is disposed on the lower die holder 2; when the die is closed, the sliding block 501 is matched with the swing block 601, and the swing block 601 tilts relative to the first baffle 3 under the action of the sliding block 501 and is matched with the first baffle 3, so that the workpiece 4 performs U-shaped bending action.

Specifically, in a die assembly state, the swing block 601 tilts under the action of the slide block 501, the swing block and the first baffle 3 complete the U-shaped bending action of the semi-finished workpiece 4, and the abrasion and deformation of the workpiece 4 in the U-shaped bending process are avoided through the structure combining the slide block 501 and the swing block 601; because the pre-deformation amount of the workpiece 4 is considered, the angle of the bent U-shaped product is adjusted by designing the swing block 601, the structure is simple, the reliability is high, the product is effectively prevented from being scratched and deformed, and the verticality of the U-shaped product is ensured.

Referring to fig. 1-3, the sliding block assembly 5 further includes a top rod 502, a pressing plate 503, a first elastic member 504 and a headless screw 505, the pressing plate 503 is fixedly disposed on the upper die base 1, the headless screw 505 is mounted on the pressing plate 503, one end of the first elastic member 504 abuts against the headless screw 505, the other end of the first elastic member 504 abuts against one end of the top rod 502, and the other end of the top rod 502 penetrates through the upper die base 1 and then abuts against the sliding block 501; during mold closing, the slider 501 pushes the ejector rod 502 to move towards the direction of the pressure plate 503 and compress the first elastic member 504, and during mold opening, the slider 501 pushes the slider 501 to reset under the action of the elastic restoring force of the ejector rod 502 and the first elastic member 504.

Specifically, in the mold opening state, the slide block 501 on the upper mold base 1 is bounced open under the action of the self-gravity and the ejector rod 502.

Referring to fig. 3, the forming mold further includes a first upper mold insert 7, the first upper mold insert 7 is fixedly disposed on the upper mold base 1, and the sliding block 501 and the first upper mold insert 7 slide in a dovetail groove fit manner.

Referring to fig. 1, the molding die further includes a second upper mold insert 8, and the second upper mold insert 8 is disposed between the first upper mold insert 7 and the slide 501 for controlling a sliding stroke of the slide 501.

Referring to fig. 1, the forming mold further includes a lower mold material pressing back plate 9, a lower mold material pressing plate 10 and a second elastic member 11, the lower mold material pressing back plate 9, the lower mold material pressing plate 10 and the second elastic member 11 are all arranged on the lower mold base 2, and during mold closing, the lower mold material pressing back plate 9 and the lower mold material pressing plate 10 respectively move to a set distance under the action of the second elastic member 11.

Referring to fig. 2, the forming mold further includes an equal-height sleeve 12 and a lower cushion plate 13, a connecting hole 901 is formed in the lower die pressing back plate 9, a first clearance hole 1301 is formed in the lower cushion plate 13, a second clearance hole 201 is formed in the lower die base 2, the equal-height sleeve 12 is installed on the first clearance hole 1301 and the second clearance hole 201, and a screw is fixedly connected with the connecting hole 901 in the lower die pressing back plate 9 through the equal-height sleeve 12 to control the moving stroke of the lower die pressing back plate 9 and the lower die pressing plate 10.

Referring to fig. 4, the pendulum block assembly 6 further includes at least two pendulum seats 602, and at least two pendulum seats 602 are respectively fixed on two side surfaces of the pendulum block 601 through pins and/or screws.

Referring to fig. 4, the forming mold further includes a second baffle 14 and an inner guide pillar 15, a plug 902 is disposed on the lower die pressing backing plate 9, the second baffle 14 is connected with the plug 902 in a matching manner and is mounted on the lower die pressing backing plate 9 through a pin and/or a screw, a mounting hole matched with the inner guide pillar 15 is disposed on the swing seat 602, and the inner guide pillar 15 penetrates through the second baffle 14 and then is connected with the mounting hole on the swing seat 602 in a matching manner.

Specifically, the second baffle plates 14 are arranged at four corners of the lower die pressing material back plate 9, and the inner guide posts 15 penetrate through the second baffle plates 14 to be connected with the corresponding mounting holes of the swing seats 602 in a matching manner, so that a structure similar to a seesaw is formed, and the structure can swing freely.

The first shutter 3 is fixed to the lower bolster 13 by pins and/or screws.

Further, as shown in fig. 1 to 3, the slider 501 is provided with a pressing portion 5011 for bending the arc shape of the workpiece 4.

The foregoing is the preferred embodiment of the present invention, showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a forming die's bending mechanism, forming die includes upper die base (1), die holder (2) and first baffle (3), its characterized in that: a U-shaped bending mechanism for bending a workpiece (4) is arranged between the upper die holder (1) and the lower die holder (2), the bending mechanism comprises a sliding block assembly (5) and a swinging block assembly (6), the sliding block assembly (5) comprises a sliding block (501), the swinging block assembly (6) comprises a swinging block (601), the sliding block (501) is arranged on the upper die holder (1), and the swinging block (601) is arranged on the lower die holder (2); when the die is assembled, the sliding block (501) is matched with the swinging block (601), and the swinging block (601) tilts relative to the first baffle (3) under the action of the sliding block (501) and is matched with the first baffle (3), so that the workpiece (4) performs U-shaped bending action.

2. The bending mechanism of the forming die according to claim 1, wherein: the sliding block assembly (5) further comprises a push rod (502), a pressing plate (503), a first elastic piece (504) and a headless screw (505), the pressing plate (503) is fixedly arranged on the upper die base (1), the headless screw (505) is installed on the pressing plate (503), one end of the first elastic piece (504) is abutted against the headless screw (505), the other end of the first elastic piece (504) is abutted against one end of the push rod (502), and the other end of the push rod (502) penetrates through the upper die base (1) and then is abutted against the sliding block (501); when the die is closed, the sliding block (501) pushes the ejector rod (502) to move towards the direction of the pressure plate (503) and compress the first elastic piece (504), and when the die is opened, the sliding block (501) pushes the sliding block (501) to reset under the action of the elastic restoring force of the ejector rod (502) and the first elastic piece (504).

3. The bending mechanism of the forming die according to claim 1, wherein: the forming die further comprises a first upper die insert (7), the first upper die insert (7) is fixedly arranged on the upper die base (1), and the sliding block (501) and the first upper die insert (7) slide in a matched mode through a dovetail groove.

4. The bending mechanism of the forming die according to claim 3, wherein: the forming die further comprises a second upper die insert (8), wherein the second upper die insert (8) is arranged between the first upper die insert (7) and the sliding block (501) and used for controlling the sliding stroke of the sliding block (501).

5. The bending mechanism of the forming die according to claim 1, wherein: the forming die further comprises a lower die material pressing back plate (9), a lower die material pressing plate (10) and a second elastic piece (11), the lower die material pressing back plate (9), the lower die material pressing plate (10) and the second elastic piece (11) are arranged on the lower die base (2), and during die assembly, the lower die material pressing back plate (9) and the lower die material pressing plate (10) are respectively moved to a set distance under the action of the second elastic piece (11).

6. The bending mechanism of the forming die according to claim 5, wherein: the forming die further comprises an equal-height sleeve (12) and a lower backing plate (13), a connecting hole (901) is formed in the lower die pressing back plate (9), a first clearance hole (1301) is formed in the lower backing plate (13), a second clearance hole (201) is formed in the lower die base (2), the equal-height sleeve (12) is installed on the first clearance hole (1301) and the second clearance hole (201), and a screw is fixedly connected with the connecting hole (901) in the lower die pressing back plate (9) through the equal-height sleeve (12) so as to control the moving stroke of the lower die pressing back plate (9) and the lower die pressing back plate (10).

7. The bending mechanism of the forming die according to claim 6, wherein: the swing block assembly (6) further comprises at least two swing seats (602), and the at least two swing seats (602) are fixedly arranged on two side faces of the swing block (601) through pins and/or screws respectively.

8. The bending mechanism of the forming die according to claim 7, wherein: the forming die further comprises a second baffle (14) and an inner guide post (15), a bolt (902) is arranged on the lower die pressing back plate (9), the second baffle (14) is connected with the bolt (902) in a matched mode and is installed on the lower die pressing back plate (9) through a pin and/or a screw, a mounting hole matched with the inner guide post (15) is formed in the swinging seat (602), and the inner guide post (15) penetrates through the second baffle (14) and then is connected with the mounting hole in the swinging seat (602) in a matched mode.

9. The bending mechanism of the forming die according to claim 8, wherein: the first baffle plate (3) is fixed on the lower backing plate (13) through pins and/or screws.

10. The bending mechanism of the forming die according to claim 1, wherein: the sliding block (501) is provided with a pressing part (5011) for bending the arc surface shape of the workpiece (4).