CN217551067U

CN217551067U - U type bolt is with hot forging flat die

Info

Publication number: CN217551067U
Application number: CN202221058484.1U
Authority: CN
Inventors: 陈宫博; 刘鹏; 管伟; 肖涛; 王子荣; 常树林
Original assignee: Zhucheng Yihe Axles Co Ltd
Current assignee: Zhucheng Yihe Axles Co Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-10-11
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a U type hot forging flat die for bolt, including relative last mould and lower mould from top to bottom, the outside of lower mould is provided with the direction buffer block that supports through elastomeric element, goes up the lower surface that the mould was fixed at the cope match-plate pattern, and the upper surface at the lower bolster is then fixed to the lower mould, and the direction buffer block is long cubic, and opens on the direction buffer block has U type breach, and the lower extreme center of direction buffer block is provided with the spring-supported groove, and the spring-supported inslot supports the buffer spring who has bottom and lower bolster contact. The utility model discloses a under the unchangeable condition of flat efficiency of forging, promote overall production efficiency, promote product quality's purpose, solved and forged flat straightness accuracy out of tolerance, defect that operator intensity of labour is big, can realize forging flat back product straightness accuracy, eliminate one-time plastic and other problems that one-time plastic caused.

Description

U type bolt is with hot forging flat die

Technical Field

The utility model relates to a stamping die specifically is a U type bolt is with flat mould of hot forging.

Background

The U-shaped bolt is an important part for connecting the automobile plate spring with the front axle and the rear axle. At present, the hot forging of the U-shaped bolt is completed by adopting the medium-frequency heating and punching matching of a punch press. The following disadvantages exist: (1) In the punching process of the punching machine, workers need to hold the workpiece and fix the workpiece on a die so as to prevent the workpiece from rolling; (2) After products are machined by the existing flat forging die, the product straightness out-of-tolerance is serious, large-size products are high in hardness after heat treatment and difficult to shape, a shaping process needs to be performed before heat treatment, and compared with other normal products, the flat forging die has the defects of complex operation steps, long auxiliary working time and low production efficiency, and (3) threads are easy to collide in the process of turnover, heavy loading and unloading actions exist, and the labor intensity is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a U type bolt is with flat mould of hot forging.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a U type hot forging flat die for bolt, includes relative last mould and lower mould from top to bottom, and the outside of lower mould is provided with the direction buffer block that supports through elastomeric element.

Furthermore, the upper die is fixed on the lower surface of the upper die plate, and the lower die is fixed on the upper surface of the lower die plate.

Furthermore, the guide buffer block is cuboid, a U-shaped notch is formed in the upper end of the guide buffer block, a spring support groove is formed in the center of the lower end of the guide buffer block, and a buffer spring with the bottom contacting with the lower template is supported in the spring support groove.

Furthermore, a plurality of guide polish rods are respectively fixed at the lower ends of the peripheral guide buffer blocks of the buffer springs, and the lower end of each guide polish rod respectively penetrates through the guide hole of the lower template.

Furthermore, the lower end of each guide polished rod is respectively fixed with a limiting bolt head, and the diameter of the bolt head is larger than that of the guide polished rod.

Furthermore, the middle part of the upper surface of the lower die is provided with a convex part which is convex upwards.

Furthermore, the two sides of the convex part are excessive with the surface of the lower die through inclined planes.

Through the setting, the utility model discloses a under the unchangeable condition of flat efficiency of forging, promote overall production efficiency, promote product quality's purpose, solved and forged flat straightness accuracy and out of tolerance, the big defect of operator intensity of labour, can realize forging flat back product straightness accuracy, eliminate one time plastic and other problems that one time plastic caused.

Drawings

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

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is the structure diagram of the guiding buffer block of the present invention.

Detailed Description

As shown in fig. 1-2, a hot forging flat die for U-shaped bolts comprises an upper die 1 and a lower die 2 which are opposite to each other, a guide buffer block 3 supported by an elastic component is arranged on the outer side of the lower die 2, the upper die 1 is fixed on the lower surface of an upper die plate 4, and the lower die 2 is fixed on the upper surface of a lower die plate.

Specifically, the method comprises the following steps: the guide buffer block 3 is cuboid, a U-shaped notch 5 is formed in the upper end of the guide buffer block 3, a spring support groove 6 is formed in the center of the lower end of the guide buffer block 3, a buffer spring 7 with the bottom contacting with a lower template is supported in the spring support groove 6, a plurality of guide polish rods 8 are respectively fixed to the lower ends of the guide buffer block 3 around the buffer spring 7, the lower end of each guide polish rod 8 penetrates through a guide hole 9 of the lower template, a limiting bolt head 10 is respectively fixed to the lower end of each guide polish rod 8, the diameter of the bolt head 10 is larger than that of each guide polish rod 8, an upward convex part 11 is arranged in the middle of the upper surface of the lower die 2, and the two sides of the convex part 11 are excessive with the surface of the lower die 2 through inclined planes.

The utility model discloses theory of operation: when the device works, the upper die 1 and the lower die 2 are respectively connected and fixed with a punch press by using a pressing plate, a spring is installed in the guide buffer block 3, the guide buffer block 3 is adjusted to reach the meshing part of the upper die 1, the lower die 2 and a workpiece, the U-shaped notch 5 of the guide buffer block 3 is aligned with the linear surface of the lower die 2, the heated workpiece is placed in the U-shaped notch 5 of the guide buffer block 3, the forged flat thickness is controlled through the up-down stroke of the punch press, and the excessive size and the linearity are controlled by replacing the guide buffer block 3 (the height of the buffer part). Guide buffer block 3 is the detachable part, according to product specification and the different specifications of optional different of forging flat size, and changes simply swiftly, and buffer spring 7 absorbs the punch press impact force, has avoided the appearance of pole portion indentation.

The above description is only illustrative of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims

1. The utility model provides a U type is hot forging flat die for bolt, includes relative last mould (1) and lower mould (2) from top to bottom, its characterized in that: the outer side of the lower die (2) is provided with a guide buffer block (3) supported by an elastic component.

2. The hot forging flat die for the U-shaped bolt as claimed in claim 1, wherein: the upper die (1) is fixed on the lower surface of the upper die plate (4), and the lower die (2) is fixed on the upper surface of the lower die plate.

3. The hot forging and flattening die for the U-shaped bolt as claimed in claim 2, wherein: the guide buffer block (3) is cuboid, a U-shaped notch (5) is formed in the upper end of the guide buffer block (3), a spring support groove (6) is formed in the center of the lower end of the guide buffer block (3), and a buffer spring (7) with the bottom in contact with the lower template is supported in the spring support groove (6).

4. A hot forging flat die for U-bolt according to claim 3, characterized in that: the lower ends of the peripheral guide buffer blocks (3) of the buffer springs (7) are respectively fixed with a plurality of guide polished rods (8), and the lower end of each guide polished rod (8) penetrates through a guide hole (9) of the lower template.

5. The hot forging and flattening die for the U-shaped bolt as claimed in claim 4, wherein: the lower end of each guide polish rod (8) is respectively fixed with a limiting bolt head (10), and the diameter of the limiting bolt head (10) is larger than that of the guide polish rod (8).

6. The hot forging flat die for the U-shaped bolt as claimed in claim 1, wherein: the middle part of the upper surface of the lower die (2) is provided with a convex part (11) which is convex upwards.

7. The hot-forging flat die for the U-shaped bolt as claimed in claim 6, wherein: the two sides of the convex part (11) are in transition with the surface of the lower die (2) through inclined planes.