CN207563551U - A kind of grading blanking die of damping noise reduction large size punching press - Google Patents

Abstract

The utility model relates to a shock-absorbing and noise-reducing large-scale stamping progressive blanking die, which comprises an upper mold base and a lower mold base, the upper mold base is connected with an upper backing plate, and a plurality of trimming punches with different heights are fixed under the upper backing plate. The upper splint of the head, the stripping plate is set on the trimming punch, the stripping plate is connected to the upper die base through the upper die contour screw, the upper die nitrogen spring and the upper die guide column, the lower end of the stripping plate is connected to the window plate, and the window plate The lower end is connected with the guide pin, the lower die base is connected with the lower backing plate, and the lower backing plate cooperates with the trimming punch of the upper die base to connect several lower die edges. The high screw, the nitrogen gas spring of the lower mold and the guide column of the lower mold are connected to the lower mold base, the lifting plate is connected to the material guide plate, the upper mold base is also connected to the outer guide column, and the matched lower mold base is connected to the outer guide sleeve. The shock-absorbing and noise-reducing large-scale stamping progressive blanking die requires small punching force, and the punching noise and vibration are small, which reduces the injury to employees.

Description

A shock-absorbing and noise-reducing large-scale stamping progressive blanking die

technical field

The utility model relates to the field of moulds, in particular to a shock-absorbing and noise-reducing large-scale stamping progressive blanking die.

Background technique

In recent years, the research and development of new materials has made continuous breakthroughs. Various thin materials and new materials can achieve high strength through thermoforming technology, which is enough to meet the strength requirements that can only be achieved with very thick materials used in automobiles in the past. With the application of these new materials, the weight of the car itself is greatly reduced, and the weight of the car is reduced, thereby realizing energy saving and consumption reduction. In order to adapt to this trend, many supporting parts such as A, B, and C pillars of automobiles adopt thermoforming technology. Therefore, for these supporting parts such as A, B and C pillars, it is necessary to develop progressive blanking dies for these parts. Due to the large size of these parts, in order to improve material utilization and save earth resources, we Generally, one-out-two and one-out-multiple layout methods with high production efficiency and high material utilization rate are selected. Therefore, these progressive blanking dies are generally large and have many punches. In production, this will As a result, the punching force and noise are particularly large, and it is easy to cause personal injury to production personnel.

Utility model content

In view of the above shortcomings, the applicant has conducted research and improvement to provide a shock-absorbing and noise-reducing large-scale stamping progressive blanking die.

The technical scheme adopted in the utility model is as follows:

A shock-absorbing and noise-reducing large-scale stamping progressive blanking die, including an upper die base and a lower die base, the upper die base is connected to an upper backing plate, and a number of trimming punches of different heights are fixed under the upper backing plate The upper splint of the head, the trimming punch is covered with a stripping plate, and the stripping plate is connected to the upper die base through the upper die contour screw, upper die nitrogen spring and upper die guide post, and the lower end of the stripping plate Connect the window plate, the lower end of the window plate is connected with the guide pin, the lower backing plate is connected with the lower backing plate, and the lower backing plate cooperates with the trimming punch of the upper die seat to connect several lower die edges, and the upper die edge is set A material lifting plate is provided, and the material lifting plate is connected to the lower mold base through the contour screw of the lower mold, the nitrogen spring of the lower mold and the guide column of the lower mold, the material guide plate is connected to the material lifting plate, and the upper mold base is also connected The outer guide column is connected with the outer guide sleeve on the matched lower mold base.

As a further improvement of the above technical solution:

The lower end of the edge trimming punch is provided with a punching slope inclined towards the center, and the shapes of the punching slopes of different edge trimming punches are different.

The beneficial effects of the utility model are as follows: the trimming punches of the shock-absorbing and noise-reducing large-scale stamping progressive blanking die have different heights and shapes, so that the trimming punches and the blanks are not in contact at the same time, and the impact can be reduced. The contact area between the head and the blank can effectively reduce the punching force, punching noise and vibration during punching, and reduce the personal injury caused by noise and vibration to production employees.

Description of drawings

Fig. 1 is a schematic diagram of the mold opening of a shock-absorbing and noise-reducing large-scale stamping progressive blanking die provided by the present invention.

Fig. 2 is a schematic diagram of the shock-absorbing and noise-reducing large-scale stamping progressive blanking die provided by the utility model during mold closing.

Fig. 3 is a schematic diagram of the trimming punch of the shock-absorbing and noise-reducing large-scale stamping progressive blanking die provided by the present invention.

In the figure: 1, upper mold base; 11, upper backing plate; 12, trimming punch; 121, punching inclined plane; 13, upper splint; 14, stripper plate; 15, upper mold contour screw; 16, upper Die nitrogen gas spring; 17. Upper die guide pillar; 18. Window plate; 19. Guide pin; 2. Lower die holder; 21. Lower backing plate; 22. Lower die edge; High screw; 25, lower mold nitrogen spring; 26, lower mold guide pillar; 27, material guide plate; 3, outer guide pillar; 4, outer guide sleeve.

Detailed ways

Below in conjunction with accompanying drawing, illustrate the specific embodiment of the present utility model.

As shown in Figures 1 to 3, the shock-absorbing and noise-reducing large-scale stamping progressive blanking die of this embodiment includes an upper mold base 1 and a lower mold base 2, and the upper mold base 1 is connected to the upper backing plate 11, and the upper backing plate 11 is fixed below the upper splint 13 with several trimming punches 12 of different heights. The lower end of the trimming punches 12 is provided with a punching slope 121 inclined to the center, and the punching slopes 121 of different trimming punches 12 have different shapes. And the trimming punch 12 is set with a stripping plate 14, the stripping plate 14 is connected to the upper die base 1 through the upper die contour screw 15, the upper die nitrogen spring 16 and the upper die guide post 17, and the lower end of the stripping plate 14 is connected to the window Plate 18, the lower end of the window plate 18 is connected with the guide pin 19, the lower die base 2 is connected with the lower backing plate 21, and the lower backing plate 21 is matched with the trimming punch 12 of the upper die base 1 to connect several lower die edges 22, and the lower die edge 22 The upper cover is provided with a lifting plate 23, and the lifting plate 23 is connected to the lower mold base 2 through the lower mold contour screw 24, the lower mold nitrogen spring 25 and the lower mold guide column 26, and the material lifting plate 23 is connected to the material guide plate 27, and the upper mold The outer guide column 3 is also connected on the seat 1, and the outer guide sleeve 4 is connected on the matched lower mold base 2.

When the shock-absorbing and noise-reducing large-scale stamping progressive blanking die is in use, the upper mold base 1 is connected to the punch press, the lower mold base 2 is connected to the working table below the punch press, and the material belt is positioned on the lifter through the material guide plate 27. On the material plate 23, the punch press drives the upper mold base 1 to descend, the guide pin 19 first contacts the material belt, and fixes the positioning on the material lifting plate 23, the window plate 18 and the material lifting plate 23 clamp the material belt, because the nitrogen gas of the upper mold The force of the spring 16 is much greater than the force of the nitrogen spring 25 of the lower die. The punch press drives the upper die base 1 to continue downward, and the lifting plate 23 will drop accordingly until the stroke of the nitrogen spring 25 of the lower die is completed. After the stroke of the nitrogen spring 25 of the lower die is completed, The punch press drives the upper die base 1 to continue downward, and the stripper plate 14 moves closer to the upper die base 1 until the upper die nitrogen spring 16 completes a stroke, the edge trimming punch 12 enters the lower die edge 22, and the mold closing is completed, completing a punching Cutting, and then the punch press drives the upper mold base 1 to rise and reset, the upper backing plate 11, the upper splint 13, and the trimming punch 12 first move upward together, and the stripping plate 14, the window plate 18, the guide pin 19, etc. are due to the nitrogen spring of the upper mold The function of 16 cannot move upward together with the upper die base 1 until a stroke of the upper die nitrogen spring 16 is completed. At this time, the trimming punch 12 has left the material belt and entered the window plate 18 to complete the stripping action. After that, the punching machine continues to drive the upper mold base 1 to move upward, and the stripper plate 14, the window plate 18, and the guide pin 19 move upward together. At this time, the lifting plate 23 and the material belt move upward together under the action of the lower die nitrogen spring 25 until After finishing the stroke of the nitrogen gas spring 25 of the lower die, the lifting plate 23 and the material belt stop moving, the stripping plate 14, the window plate 18, the guide pin 19 are separated from the material belt, and the upper mold base 1 continues to move upward until it reaches the punching machine The dead point position completes the task of blanking and reset once.

The above description is an explanation of the utility model, not a limitation of the utility model. For the limited scope of the utility model, refer to the claims. Without violating the basic structure of the utility model, the utility model can be modified in any form.

Claims (2)

1. A shock-absorbing and noise-reducing large-scale stamping progressive blanking die, comprising an upper die base (1) and a lower die base (2), characterized in that: the upper die base (1) is connected to an upper backing plate (11 ), the upper splint (13) with several trimming punches (12) with different heights is fixed below the upper backing plate (11), and the stripping plate (14) is sleeved on the described trimming punch (12) , the stripping plate (14) is connected to the upper mold base (1) through the upper mold contour screw (15), the upper mold nitrogen spring (16) and the upper mold guide post (17), and the stripping plate (14) The lower end is connected to the window plate (18), the lower end of the window plate (18) is connected to the guide pin (19), the lower base plate (2) is connected to the lower backing plate (21), and the lower backing plate (21) is matched with the upper mold The edge trimming punch (12) of the seat (1) is connected with several lower die edges (22), and a lifting plate (23) is set on the lower die edge (22), and the lifting plate (23) passes through the lower die Contour screw (24), lower mold nitrogen spring (25) and lower mold guide post (26) connect lower mold base (2), on the described lifting plate (23) connect material guide plate (27), described upper The mold base (1) is also connected with the outer guide column (3), and the matched lower mold base (2) is connected with the outer guide sleeve (4). 2. The shock-absorbing and noise-reducing large-scale progressive blanking die for stamping according to claim 1, characterized in that: the lower end of the trimming punch (12) is provided with a punching slope (121) inclined to the center, and different cutting The punching slopes (121) of the side punches (12) have different shapes.