CN211386578U - One-step completed inner buckle bending die - Google Patents

Abstract

The utility model provides a one-step inner buckle bending die, which includes an upper die assembly and a lower die assembly. The upper die seat, the upper backing plate, the upper fixing plate and the discharge plate are fixed in sequence from top to bottom, and become the upper half section that can move in time with the press, the discharging plate; A rectangular spring is installed between the upper fixing plates to cause relative movement between the two. A drive block is installed on the side of the upper fixing plate close to the lower die assembly, and a bending plate is installed on the side of the stripper plate close to the lower die assembly. Punch; the lower die assembly is located just below the upper die assembly, the lower die assembly from top to bottom includes: lower template, lower fixing plate, lower pad and lower die base, lower template, lower fixing plate, lower pad Fixed installation between the plate and the lower die base. The utility model has the advantages of high production efficiency, simple process and low cost, and is a stamping die for an inner buckle, bending and rolling round piece.

Description

A one-step inner buckle bending die

technical field

The utility model mainly relates to the field of stamping die, in particular to a one-step inner buckle bending die.

Background technique

In the stamping processing industry, similar rounded parts are often encountered. The traditional method is to complete the rounding process after multi-step forming. The process is complicated, time-consuming, labor-intensive, low-efficiency and high-cost.

Chinese invention patent has been published, application number CN201711134539.6, patent name: a bending stamping die, application date: 2017-11-16, the utility model relates to a bending stamping die, comprising an upper die seat and a lower die seat , Fix the upper splint, the bending punch, the bending die platform, the cylinder, the telescopic guide post and the fixed guide sleeve. The upper splint, and the size of the upper die base and the fixed upper splint is the same, the middle of the fixed upper splint is provided with a guide hole, the guide hole and the bending punch are corresponding structures, and the bottom of the fixed upper splint is provided with a guide hole. There is a lower die base, a bending die platform is arranged on the top of the lower die base, cylinders are arranged on both sides of the bottom of the lower die base, and telescopic guide columns are distributed on both sides of the top of the lower die base. The bending stamping die is provided with air cylinders on both sides of the bottom of the lower die base, and three telescopic guide columns are set on the top of the cylinder, which is convenient for fixing the upper clamp plate to lift and perform the bending stamping die work, and can effectively control the upper die base. Make it drive the bending punch for bending during work.

Utility model content

The utility model provides a one-step inner buckle bending die, aiming at the above-mentioned defects of the prior art, provides a one-step inner buckle bending die, which includes an upper die assembly and a lower die assembly, and is characterized in that the The upper die assembly includes an upper die assembly and a lower die assembly, characterized in that the upper die assembly includes an upper die base 1, an upper backing plate 2, an upper fixing plate 3 and a stripper plate 4, and the upper die base 1 , The upper backing plate 2, the upper fixing plate 3 and the unloading plate 4 are fixed in sequence from top to bottom, and become the upper half section that can move in time with the press;

A rectangular spring A12 is installed between the stripper plate 4 and the upper die base 1, the upper backing plate 2 and the upper fixing plate 3, so as to cause relative movement between the two, and the upper fixing plate 3 is close to the lower die assembly. A drive block 9 is installed on one side, and a bending punch 13 is installed on the side of the stripper plate 4 close to the lower die assembly;

The lower mold assembly is located directly below the upper mold assembly, and the lower mold assembly includes from top to bottom: a lower template 5, a lower fixing plate 6, a lower backing plate 7 and a lower mold base 8. The lower template 5. Fixed installation between the lower fixing plate 6, the lower backing plate 7 and the lower die base 8;

The lower fixing plate 6 has a built-in guide plate 11, and the lower die assembly is provided with a sliding block 10 mounted on a rectangular spring B15 that slides relative to the guide plate 11. The sliding block 10 is provided with a driving block 9 mating slopes,

The side of the slider 10 close to the bending punch 13 is inlaid with a forming block 16, the lower template 5 is provided with a bending die 14 corresponding to the bending punch 13, and the lower template 5 is also provided with a positioning system. Guide pin 17 of piece 19.

Preferably, the upper die base 1 , the upper backing plate 2 , the upper fixing plate 3 and the stripping plate 4 are fixed by equal height screws 18 .

Preferably, the guide pin 17 is arranged on the side of the lower template 5 close to the workpiece 19 and passes through the workpiece 19 .

Preferably, the side of the driving block 9 close to the inclined surface of the slider 10 is provided with a corresponding inclined surface, and the upper and lower sides of the inclined surface are provided with rounded corners.

Preferably, the driving block 9 is fixedly mounted on the side of the upper backing plate 2 close to the lower die assembly by means of bolts.

Preferably, the guide plate 11 is fixedly mounted on the lower backing plate 7 by means of bolts, and the bolts are provided in multiples.

Preferably, the shape of the forming block 16 corresponds to the shape of the product.

The beneficial effects of the utility model are as follows: through the drive arrangement of the drive block and the inclined surface of the slider, the rolling and bending process is realized, and the efficiency is improved. Development costs, improve the stability of the workpiece.

Description of drawings

Fig. 1 is the structural drawing of the utility model;

In the figure,

1. Upper die base; 2. Upper backing plate; 3. Upper fixing plate; 4. Stripping plate; 5. Lower die plate; 6. Lower fixing plate; 7. Lower backing plate; 8. Lower die holder; 9. Drive block; 10, slider; 11, guide plate; 12, rectangular spring A; 13, bending punch; 14, bending die; 15, rectangular spring B; 16, forming block; 17, guide pin; 18 , Contour screws; 19. Parts.

Detailed ways

As shown in FIG. 1, the utility model includes: an upper die assembly and a lower die assembly, characterized in that the upper die assembly includes an upper die base 1, an upper backing plate 2, an upper fixing plate 3, and an upper die assembly. The material plate 4, the upper die base 1, the upper backing plate 2, the upper fixing plate 3 and the discharge plate 4 are fixed in sequence from top to bottom, and become the upper half section that can move in time with the press;

A rectangular spring A12 is installed between the stripper plate 4 and the upper die base 1, the upper backing plate 2 and the upper fixing plate 3, so as to cause relative movement between the two, and the upper fixing plate 3 is close to the lower die assembly. A drive block 9 is installed on one side, and a bending punch 13 is installed on the side of the stripper plate 4 close to the lower die assembly;

The lower mold assembly is located directly below the upper mold assembly, and the lower mold assembly includes from top to bottom: a lower template 5, a lower fixing plate 6, a lower backing plate 7 and a lower mold base 8. The lower template 5. Fixed installation between the lower fixing plate 6, the lower backing plate 7 and the lower die base 8;

The lower fixing plate 6 has a built-in guide plate 11, and the lower die assembly is provided with a sliding block 10 mounted on a rectangular spring B15 that slides relative to the guide plate 11. The sliding block 10 is provided with a driving block 9 mating slopes,

The side of the slider 10 close to the bending punch 13 is inlaid with a forming block 16, the lower template 5 is provided with a bending die 14 corresponding to the bending punch 13, and the lower template 5 is also provided with a positioning system. Guide pin 17 of piece 19.

In use, the following steps are included:

Step 1: Punch work:

All the original rectangular springs A12 connected with the upper die base 1, the upper backing plate 2, the upper fixing plate 3 and the discharge plate 4, the driving block 9, the bending die 13 starts to descend, and the bending die 13 first contacts the workpiece 19, The guide pin 17 is inserted into the workpiece 19, and in the process of continuing to descend, the bending punch 13 begins to exert a certain force on the workpiece 19. At this time, the stripper plate 4 and the bending punch 13 stop descending.

Since the upper die base 1, the upper backing plate 2, the upper fixing plate 3 and the discharge plate 4 are elastically connected, the upper die base 1 continues to descend, and the driving block 9 also continues to descend with the upper die base 1, and the lower end of the driving block 9 is in contact with the inclined surface. To the upper slope of the slider 10, the slider 10 is driven by the lateral force of the slope, and the movement of the slider 10 is guided by the guide plate 11. When the upper die descends to the bottom dead center of the machine tool, the workpiece 19 moves to the folded position. Bend the punch 13 and bend the close position of the corresponding part of the concave die 14 to complete the inner buckle bending and stamping in one step.

Step 2: Finished after stamping operation:

The slider of the punch press starts to move upward, the upper die base 1, the upper backing plate 2, and the upper fixing plate 3 also start to move upward, the driving block 9 moves upward, the bending punch 13 and the stripper plate 4 remain motionless first, and then go upward. During the process, the inclined surface of the lower end of the driving block 9 is gradually separated from the inclined surface of the slider 10, and the slider 10 and the forming block 16 are reset under the action of the rectangular spring B15. At this time, the bending punch 13 and the bending die 14 are completely separated. The stripper plate 4 continues to go up and returns to the top dead center of the mold, and the parts can be picked up at this time.

In this implementation, preferably, the upper die base 1, the upper backing plate 2, the upper fixing plate 3 and the stripper plate 4 are fixed by equal height screws 18.

The above structure is provided to provide stability of the mold assembly as a whole during operation.

In this embodiment, preferably, the guide pin 17 is arranged on the side of the lower template 5 close to the workpiece 19 and passes through the workpiece 19 .

With the above-mentioned structure, the first step of bending is to put the product 19 into the guide pin 17 to play a positioning role.

In this embodiment, preferably, the side of the driving block 9 close to the inclined surface of the slider 10 is provided with a corresponding inclined surface, and the upper and lower sides of the inclined surface are provided with rounded corners.

The above structure is provided to prevent friction in the working process, and a certain smoothness can ensure the use time of the tool and reduce the repair rate.

In this embodiment, preferably, the driving block 9 is fixedly installed on the side of the upper backing plate 2 close to the lower die assembly by means of bolts.

The above structure is provided, and the stability of the installation and fixation of the driving block 9 is ensured through the use of bolts, and the stability during use is improved.

In this embodiment, preferably, the guide plate 11 is fixedly installed on the lower backing plate 7 by means of bolts, and the bolts are provided with a plurality of bolts.

With the above structure, the use of bolts ensures the stability of the installation and fixation of the guide plate 11 and improves the stability during use.

Preferably in this embodiment, the shape of the forming block 16 corresponds to the shape of the product.

The above structure is provided, the shape of the forming block 16 is not limited, and the function of flexible application is played to improve the utilization rate of the product.

The above-mentioned embodiments merely illustrate the principles and effects of the present patent application, but are not intended to limit the present patent application. Anyone skilled in the art can make modifications or changes to the above embodiments without departing from the spirit and scope of the present patent application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in this patent application shall still be covered by the claims of this patent application.

Claims (7)

1. The die for bending the inner buckle in one step is characterized by comprising an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die base (1), an upper padding plate (2), an upper fixing plate (3) and a stripper plate (4), and the upper die base (1), the upper padding plate (2), the upper fixing plate (3) and the stripper plate (4) are fixed in sequence from top to bottom to form an upper half section capable of moving in time along with a press;

a rectangular spring A (12) is arranged between the discharging plate (4) and the upper die holder (1), the upper backing plate (2) and the upper fixing plate (3) to enable the discharging plate and the upper die holder to generate relative motion, a driving block (9) is arranged on one side, close to the lower die assembly, of the upper fixing plate (3), and a bending male die (13) is arranged on one side, close to the lower die assembly, of the discharging plate (4);

the lower mould subassembly is located the mould subassembly under, lower mould subassembly from the top down includes: the lower die plate (5), the lower fixing plate (6), the lower backing plate (7) and the lower die base (8) are fixedly mounted among the lower die plate (5), the lower fixing plate (6), the lower backing plate (7) and the lower die base (8);

a guide plate (11) is arranged in the lower fixing plate (6), a sliding block (10) which is arranged on a rectangular spring B (15) and slides relative to the guide plate (11) is arranged in the lower die assembly, the sliding block (10) is provided with an inclined surface matched with the driving block (9),

one side, close to the bending male die (13), of the sliding block (10) is inlaid with a forming block (16), the lower die plate (5) is provided with a bending female die (14) corresponding to the bending male die (13), and the lower die plate (5) is further provided with a guide pin (17) for positioning a workpiece (19).

2. The die for completing inner buckle bending in one step according to claim 1, which is characterized in that: the upper die holder (1), the upper backing plate (2), the upper fixing plate (3) and the stripper plate (4) are fixed through equal-height screws (18).

3. The die for completing inner buckle bending in one step according to claim 2, is characterized in that: the guide pin (17) is arranged on one side, close to the workpiece (19), of the lower template (5) and penetrates through the workpiece (19).

4. The die for completing inner buckle bending in one step according to claim 3, is characterized in that: one side of the driving block (9) close to the inclined plane of the sliding block (10) is provided with a corresponding inclined plane, and the upper side and the lower side of the inclined plane are both provided with round corners.

5. The die for completing inner buckle bending in one step according to claim 4, is characterized in that: and the driving block (9) is fixedly arranged on one side of the upper backing plate (2) close to the lower die assembly through a bolt.

6. The die for completing inner buckle bending in one step according to claim 5, is characterized in that: the guide plate (11) is fixedly installed on the lower backing plate (7) through bolts, and the bolts are provided with a plurality of bolts.

7. The die for completing inner buckle bending in one step according to claim 6, wherein: the shape of the forming block (16) corresponds to the shape of the product.

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