CN213671470U

CN213671470U - Drawing die guide structure

Info

Publication number: CN213671470U
Application number: CN202022504918.3U
Authority: CN
Inventors: 张根林; 甘凯文
Original assignee: Nanjing Shengzhida Auto Parts Co ltd
Current assignee: Nanjing Shengzhida Auto Parts Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-13
Anticipated expiration: 2030-11-03

Abstract

The utility model provides a drawing die guide structure, including the upper die and the lower die that set up from top to bottom, be fixed with the die head on the upper die, be equipped with a plurality of cavitys in the upper die, the both sides that the cavity is relative are equipped with the vertical guide way rather than communicating, the bottom of upper die is equipped with the slip hole with the cavity intercommunication, the vertical pre-guide post that is equipped with in the slip hole, the one end of pre-guide post is located in the cavity and is connected with the sliding plate that can vertically slide in the cavity, the both sides of sliding plate are equipped with the guide block that matches with the guide way, the side of guide block contacts with the cell wall of guide way, be connected with the; the top of the lower die is provided with a pre-guide groove which is opposite to the pre-guide column, and the groove depth of the pre-guide groove is smaller than the length of the pre-guide column extending out of the bottom of the upper die when the spring is in a balanced state; still be equipped with the profile modeling piece and the flute profile of matcing between the bottom of going up the mould and the top of lower mould, the bottom border of going up the mould is equipped with a plurality of fixture blocks, and the top border of lower mould is equipped with the breach that a plurality of fixture blocks correspond the matching.

Description

Drawing die guide structure

Technical Field

The utility model relates to a drawing die technical field, concretely relates to drawing die guide structure.

Background

When the drawing die is used, the upper die is manually closed in the lower die process, and the upper die is certainly shaken and swung in the process, so that the profiles of the upper die and the lower die are likely to be impacted, the working profile of the die is damaged, the drawn product is defective or the product cannot be smoothly drawn, and the requirement on the working profile of the drawn workpiece is high, so that the quality of the finished product is reduced; when the blank is demoulded, the blank is blocked with a positioning pin of the die due to the outward drawing force, so that the blank is not demoulded smoothly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drawing die guide structure realizes the lower mould and the accurate positioning of last mould, guarantees the accuracy nature of work profile.

The utility model provides a following technical scheme:

a drawing die guide structure comprises an upper die and a lower die which are arranged up and down, wherein a die head is fixed on the upper die, a plurality of cavities are arranged in the upper die, vertical guide grooves communicated with the cavities are formed in two opposite sides of the cavities, a sliding hole communicated with the cavities is formed in the bottom of the upper die, pre-guide columns are vertically arranged in the sliding hole, one end of each pre-guide column is arranged in each cavity and is connected with a sliding plate, the transverse section of each sliding plate is matched with the corresponding cavity, each sliding plate can vertically slide in the corresponding cavity, guide blocks matched with the corresponding guide grooves are arranged on two sides of each sliding plate, the side faces of the guide blocks are in contact with the wall of the corresponding guide groove, and a spring is connected between the top of each sliding plate and the corresponding; the top of the lower die is provided with a pre-guide groove which is opposite to the pre-guide column, and the groove depth of the pre-guide groove is smaller than the length of the pre-guide column extending out of the bottom of the upper die when the spring is in a balanced state;

a matched toothed block and a toothed groove are further arranged between the bottom of the upper die and the top of the lower die, and the outer wall of the toothed block is attached to the inner wall of the toothed groove; the bottom border of going up the mould is equipped with a plurality of fixture blocks, the top border of lower mould is equipped with a plurality of the breach that the fixture block corresponds the matching.

Preferably, the tooth-shaped blocks are arranged on the upper die between the pre-guide column and the die head, and the tooth-shaped blocks are circumferentially distributed by taking the die head as a circle center.

Preferably, one side of the fixture block opposite to the die head is stepped.

Preferably, the cavity and the sliding plate are cylindrical, and the guide groove and the guide block are cuboids.

Preferably, a gap is formed between the pre-guide column and the sliding hole and between the sliding plate and the cavity.

Preferably, the width of the gap is 0.8-1.2 mm.

The utility model has the advantages that: when the die is closed, the pre-guide post contacts the pre-guide groove at the top of the lower die, so that the sliding plate moves upwards to compress the spring, the guide post vertically rises along the sliding hole, the pressing process of the upper die is preliminarily positioned, and the preliminary stability of the upper die is ensured; the precise positioning of the lower die and the upper die is realized through the complete attachment of the toothed block at the bottom of the upper die and the toothed groove at the top of the lower die and the fixture blocks and the notches matched with the side edges of the upper die and the lower die, and the precision of a working profile is ensured; when the calendering work is finished, the upper die moves upwards, the sliding block moves downwards under the action of the spring, and the upper die is jacked up, so that the upper die and the lower die are separated, and a workpiece is convenient to take.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the upper mold structure of the present invention;

FIG. 3 is a schematic view of the lower mold structure of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 2;

labeled as: 1. an upper die; 2. a lower die; 3. a die head; 4. a cavity; 5. pre-guiding columns; 6. a pre-guide groove; 7. a sliding plate; 8. a spring; 9. a toothed block; 10. a clamping block; 11. a guide groove; 12. a toothed groove; 13. a notch; 14. and a guide block.

Detailed Description

As shown in fig. 1-4, a drawing die guide structure comprises an upper die 1 and a lower die 2 which are arranged up and down, wherein a die head 3 is fixed on the upper die 1, a plurality of cavities 4 are arranged in the upper die 1, vertical guide grooves 11 communicated with the cavities 4 are arranged on two opposite sides of the cavities 4, a sliding hole communicated with the cavities 4 is arranged at the bottom of the upper die 1, pre-guide columns 5 are vertically arranged in the sliding hole, one ends of the pre-guide columns 5 are arranged in the cavities 4 and connected with a sliding plate 7, the transverse section of the sliding plate 7 is matched with the cavities 4, and the sliding plate 7 can vertically slide in the cavities 4.

The two sides of the sliding plate 7 are provided with guide blocks 14 matched with the guide grooves 11, and the side surfaces of the guide blocks 14 are in contact with the groove walls of the guide grooves 11, so that the sliding plate 7 cannot shake or shift when sliding up and down.

A spring 8 is connected between the top of the slide plate 7 and the cavity 4.

In this embodiment, the cavity 4 and the sliding plate 7 are cylindrical, and the guide groove 11 and the guide block 14 are rectangular; gaps are arranged between the pre-guide columns 5 and the sliding holes and between the sliding plates 7 and the cavity 4, the width of each gap is 0.8-1.2mm, and the phenomenon that the normal work is influenced due to the fact that large friction is generated between the pre-guide columns 5 and the sliding holes and between the sliding plates 7 and the cavity 4 when the mold is closed and separated is avoided.

The top of the lower die 2 is provided with a pre-guide groove 6 which is right opposite to the pre-guide post 5, and the depth of the pre-guide groove 6 is smaller than the length of the pre-guide post 5 extending out of the bottom of the upper die 1 when the spring 8 is in a balanced state, so that the spring 8 is in a compressed state when the die is closed.

A tooth-shaped block 9 and a tooth-shaped groove 12 which are matched with each other are also arranged between the bottom of the upper die 1 and the top of the lower die 2, and the outer wall of the tooth-shaped block 9 is attached to the inner wall of the tooth-shaped groove 12, so that accurate positioning is realized.

Specifically, the tooth-shaped blocks 9 are arranged on the upper die 1 between the pre-guide column 5 and the die head 3, and the tooth-shaped blocks 9 are circumferentially distributed by taking the die head 3 as a circle center, so that the positioning is more accurate.

The bottom edge of the upper die 1 is provided with a plurality of fixture blocks 10, the top edge of the lower die 2 is provided with notches 13 correspondingly matched with the fixture blocks 10, and one side, opposite to the die head 3, of each fixture block 10 is stepped, so that edge positioning is realized.

As shown in fig. 1-4, in die assembly, an upper die 1 is pressed downwards, the bottom of a pre-positioning column is inserted into a pre-positioning groove at the top of a lower die 2, the top of the pre-positioning column pushes a sliding plate 7 to slide upwards, a compression spring 8 is compressed to perform preliminary positioning on the pressing process of the upper die 1, and guide blocks 14 on two sides of the sliding plate 7 vertically slide along a guide groove 11, so that the sliding stability is ensured, and the sliding plate 7 is prevented from inclining; along with the pressing of the upper die 1, the tooth-shaped block 9 at the bottom of the upper die 1 is completely clamped in the tooth-shaped groove 12 at the top of the lower die 2, and the edges of the upper die 1 and the lower die 2 are accurately clamped with the notch 13 through the stepped clamping block 10, so that the accurate positioning of the upper die 1 and the lower die 2 during die assembly is realized, the accurate positioning of the lower die 2 and the upper die 1 is realized, and the accuracy of a working profile is ensured; when the calendering work is finished, the upper die 1 moves upwards, the sliding block moves downwards under the action of the spring 8, and the upper die 1 is jacked up, so that the upper die 1 is separated from the lower die 2, and a workpiece is convenient to take.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A guide structure of a drawing die is characterized by comprising an upper die (1) and a lower die (2) which are arranged up and down, wherein a die head (3) is fixed on the upper die (1), a plurality of cavities (4) are arranged in the upper die (1), vertical guide grooves (11) communicated with the cavities (4) are formed in two opposite sides of the cavities (4), a sliding hole communicated with the cavities (4) is formed in the bottom of the upper die (1), pre-guide columns (5) are vertically arranged in the sliding hole, one ends of the pre-guide columns (5) are arranged in the cavities (4) and connected with a sliding plate (7), the transverse cross section of the sliding plate (7) is matched with the cavities (4), the sliding plate (7) can vertically slide in the cavities (4), guide blocks (14) matched with the guide grooves (11) are arranged on two sides of the sliding plate (7), the side surface of the guide block (14) is in contact with the wall of the guide groove (11), and a spring (8) is connected between the top of the sliding plate (7) and the cavity (4); the top of the lower die (2) is provided with a pre-guide groove (6) which is opposite to the pre-guide post (5), and the depth of the pre-guide groove (6) is smaller than the length of the pre-guide post (5) extending out of the bottom of the upper die (1) when the spring (8) is in a balanced state;

a tooth-shaped block (9) and a tooth-shaped groove (12) which are matched with each other are also arranged between the bottom of the upper die (1) and the top of the lower die (2), and the outer wall of the tooth-shaped block (9) is attached to the inner wall of the tooth-shaped groove (12); the bottom border of going up mould (1) is equipped with a plurality of fixture blocks (10), the top border of lower mould (2) is equipped with a plurality of the breach (13) that fixture block (10) correspond the matching.

2. The guiding structure of the drawing die as claimed in claim 1, wherein the toothed blocks (9) are arranged on the upper die (1) between the pre-guiding column (5) and the die head (3), and the toothed blocks (9) are circumferentially distributed with the die head (3) as a center.

3. Drawing die guide structure according to claim 1, characterised in that the side of the block (10) opposite to the die head (3) is stepped.

4. Drawing die guide structure according to claim 1, characterised in that the cavity (4) and the slide plate (7) are cylindrical and the guide slot (11) and the guide block (14) are cuboid.

5. Drawing die guide structure according to claim 1, characterised in that there are gaps between the pre-guide post (5) and the sliding hole, and between the sliding plate (7) and the cavity (4).

6. Drawing die guide structure according to claim 5, characterised in that the width of the gap is 0.8-1.2 mm.