CN210877240U

CN210877240U - Trimming or shaping discharging device for automobile beam type high-strength plate die

Info

Publication number: CN210877240U
Application number: CN201921934138.3U
Authority: CN
Inventors: 王冀军; 王铭; 李健; 毛静莉
Original assignee: Chengdu Push Automobile Mold Co ltd
Current assignee: Chengdu Push Automobile Mold Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-06-30
Anticipated expiration: 2029-11-11

Abstract

The utility model relates to a car roof beam class excels in board mould deburring or plastic discharge apparatus belongs to mould discharge apparatus technical field. The utility model discloses an go up mould and eccentric swage, the lower fixed surface who goes up the mould installs nitrogen spring, and eccentric swage's last fixed surface installs the cushion, and nitrogen spring's below position is located to the cushion, and eccentric swage has seted up the step form through-hole that the upper portion diameter is big, the lower part diameter is little in the below of cushion, installs spring and stripper in the through-hole. The discharging device takes a material pressing device as a main structure, 1-3 groups of discharging devices are arranged according to the thickness, the tensile strength grade and the trimming and shaping force of a plate material, and all parts of the discharging device are positioned on the same normal line during working, so that the discharging device is simple in structure, and the occupied working space of the molded surface of an insert is greatly reduced.

Description

Trimming or shaping discharging device for automobile beam type high-strength plate die

Technical Field

The utility model relates to a car roof beam class excels in board mould deburring or plastic discharge apparatus belongs to mould discharge apparatus technical field.

Background

Because the length size of the beam part is far larger than the width size, the plate material is easily clamped in the upper die cavity after trimming or shaping work of the beam part is finished, and generally, in die design, the clamping during discharging is eliminated by arranging the elastic jacking pin on the molded surface of the lower die base. However, for high-strength plate beam type parts, such as a column A, a column B and other high-strength plates with the tensile strength of 800MPa, the thickness of the high-strength plate reaches about 1.5mm-2mm, the trimming force is multiplied in the stamping process, separation of a product and a die sometimes cannot be realized by adopting conventional number of unloading ejection pins after forming is completed, in order to avoid die clamping in an automatic stamping production line, a plurality of unloading ejection pins are often arranged on a die surface in the design process, although the material clamping phenomenon can be eliminated, sometimes the die insert surface space is insufficient, the plurality of unloading ejection pins cannot be arranged, and when the installation height is too poor, certain impact surface defects are easily caused on the quality of the formed product surface.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the die trimming or shaping discharging device is low in cost and simple in structure.

For solving the technical problem the utility model discloses the technical scheme who adopts is: mould deburring or plastic discharge apparatus, including last mould and eccentric swage, the lower fixed surface who goes up the mould installs nitrogen spring, the last fixed surface who goes up the eccentric swage installs the cushion, the below position of nitrogen spring is located to the cushion, the eccentric swage has seted up the upper portion diameter in the below of cushion greatly, the little step-like through-hole of lower part diameter, install spring and discharge arm in the through-hole, spring mounting is in the macropore part on upper portion, discharge arm installs in the aperture part of lower part, the spring upper end is connected with the lower surface of cushion, the spring lower extreme is connected with discharge arm's upper end, discharge arm's upper end has the location step, when discharge arm's location step contacts with the step face of eccentric swage through-hole inner wall, discharge arm's lower extreme stretches out outside the through-hole, nitrogen spring.

Further, the method comprises the following steps: the nitrogen spring is fixedly arranged on the lower surface of the upper die through a mounting plate.

Further, the method comprises the following steps: the cushion block is fixedly arranged on the material pressing device through a bolt.

Further, the method comprises the following steps: an adjusting gasket is arranged between the upper surface of the positioning step of the discharging rod and the lower end of the spring.

The utility model has the advantages that: when an upper die of the die moves downwards, the nitrogen spring compresses, pressing force is transmitted to the pressing device through the cushion block, when the pressing device squats to be dead, the discharging rod compresses the spring to form certain discharging counter force, when trimming or shaping procedures are completed, the upper die and the nitrogen spring return back, the discharging counter force of the spring is released, a product clamped in the pressing device is ejected, and discharging of parts is completed. In the device, the magnitude of the discharging force can be adjusted through the rigidity of the spring on one hand and the thickness of the adjusting gasket on the other hand. The discharging device takes a material pressing device as a main structure, 1-3 groups of discharging devices are arranged according to the thickness, the tensile strength grade and the trimming and shaping force of a plate, and all parts of the discharging device are positioned on the same normal line in work, so that the discharging device is simple in structure, the occupied working space of the molded surface of an insert is greatly reduced, in addition, the discharging device can be processed by self, the purchasing and installation cost of a discharging standard part is saved, and the economic benefit and the product quality are greatly improved compared with the discharging by adopting the standard part.

Drawings

FIG. 1 is a schematic structural view of a high-strength plate covering member of the type of a cross beam in the prior art;

FIG. 2 is a schematic view of the overall assembly structure of the present invention;

the labels in the figure are: 1-upper die, 2-mounting plate, 3-nitrogen spring, 4-cushion block, 5-spring, 6-pressure feeder, 7-adjusting gasket and 8-discharging rod.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

As shown in figure 2, the utility model comprises an upper die 1 and a material pressing device 6, a nitrogen spring 3 is fixedly arranged on the lower surface of the upper die 1, a cushion block 4 is fixedly arranged on the upper surface of the material pressing device 6, the cushion block 4 is arranged at the lower position of the nitrogen spring 3, the material pressing device 6 is provided with a step-shaped through hole with a large upper diameter and a small lower diameter below the cushion block 4, a spring 5 and a discharging rod 8 are arranged in the through hole, the spring 5 is arranged at the large hole part of the upper part, the discharging rod 8 is arranged at the small hole part of the lower part, the upper end of the spring 5 is connected with the lower surface of the cushion block 4 (the connection here is generally butt), the lower end of the spring 5 is connected with the upper end of the discharging rod 8 (the connection is generally butt), the upper end of the discharging rod 8 is provided with a positioning step, when the positioning, the axis of the nitrogen spring 3 and the axis of the through hole of the material pressing device 6 are arranged along the moving direction of the upper die 1.

When the upper die 1 of the die moves downwards, the nitrogen spring 3 is compressed, the pressing force is transmitted to the pressing device 6 through the cushion block 4, when the pressing device 6 is squat to be dead, the discharging rod 8 compresses the spring 5 to form a certain discharging counter force, when the trimming or shaping process is completed, the upper die 1 and the nitrogen spring 3 return back, the discharging counter force of the spring 5 is released at the moment, and a product clamped in the pressing device 6 is ejected out, so that the discharging of the part is completed. In this arrangement the magnitude of the discharge force can be adjusted by the stiffness of the spring 5. When the depth of the side wall of the part is deep or the discharging force is large, 1-3 discharging devices can be arranged according to the position of the nitrogen spring 3, and compared with a standard part with more than ten discharging pins in the traditional design, the discharging device has the advantages of low mold development cost and simple structure, and greatly reduces the working space occupied by the molded surface of the insert.

For convenient assembly, the nitrogen spring 3 is fixedly arranged on the lower surface of the upper die 1 through the mounting plate 2; the cushion block 4 is fixedly arranged on the swager 6 through bolts.

In order to adjust the discharging force more conveniently, a spacer 7 is provided between the upper surface of the positioning step of the discharging rod 8 and the lower end of the spring 5. In this arrangement the magnitude of the discharge force can be adjusted on the one hand by the stiffness of the spring 5 and on the other hand by adjusting the thickness of the shim 7.

Claims

1. Mould deburring or plastic discharge apparatus, including last mould (1) and eccentric swage (6), its characterized in that: the nitrogen spring (3) is fixedly installed on the lower surface of the upper die (1), the cushion block (4) is fixedly installed on the upper surface of the material pressing device (6), the cushion block (4) is arranged at the position below the nitrogen spring (3), the material pressing device (6) is provided with a step-shaped through hole with a large upper diameter and a small lower diameter below the cushion block (4), the spring (5) and the discharging rod (8) are installed in the through hole, the spring (5) is installed on a large hole part at the upper part, the discharging rod (8) is installed on a small hole part at the lower part, the upper end of the spring (5) is connected with the lower surface of the cushion block (4), the lower end of the spring (5) is connected with the upper end of the discharging rod (8), the positioning step is arranged at the upper end of the discharging rod (8), when the positioning step of the discharging rod (8) is in contact with the step surface of the inner wall of the through, The axes of the through holes of the material pressing device (6) are arranged along the moving direction of the upper die (1).

2. The die trimming or shaping discharge apparatus as set forth in claim 1, wherein: the nitrogen spring (3) is fixedly arranged on the lower surface of the upper die (1) through the mounting plate (2).

3. The die trimming or shaping discharge apparatus as set forth in claim 1, wherein: the cushion block (4) is fixedly arranged on the material pressing device (6) through a bolt.

4. A die trimming or shaping discharge apparatus as claimed in any one of claims 1 to 3, wherein: an adjusting gasket (7) is arranged between the upper surface of the positioning step of the discharging rod (8) and the lower end of the spring (5).