CN215467864U

CN215467864U - Cold heading forming die set for locking nut with locking plate hexagonal flange surface

Info

Publication number: CN215467864U
Application number: CN202120566039.5U
Authority: CN
Inventors: 吕林峰; 耿振威; 刘文斌
Original assignee: Zhejiang Nate Automobile Standard Component Co ltd
Current assignee: Zhejiang Nate Automobile Standard Component Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-01-11
Anticipated expiration: 2031-03-19

Abstract

The utility model discloses a cold heading forming die set for locking nuts of locking plate hexagonal flange faces, which comprises a sizing die, a pipe wall forming die, a hexagonal flange forming die and a punching die. Preferably, the shaping die comprises a female die and a male die, the male die comprises a sequence upper punch, the female die comprises a sequence lower punch, and a sequence main die is arranged outside the lower punch. The conventional GB6183 nuts can be produced only on cold heading equipment with more than 5 stations, the production module of the GB6183 nuts is simplified, the cold heading die set with 4 stations is adopted for production, the forming process is reduced, the production period of the nuts is shortened, the production efficiency is improved, the requirement on the cold heading equipment is reduced, the cost of the dies is reduced, the production cost of the nuts is reduced, and the market competitiveness is improved.

Description

Cold heading forming die set for locking nut with locking plate hexagonal flange surface

Technical Field

The utility model relates to the field of cold heading manufacturing, in particular to a cold heading forming die set for a locking nut with a locking plate hexagonal flange surface.

Background

Locking nut is arranged on the hexagonal flange face of the locking plate. Is a fastener for locking and preventing looseness, a standard component. The lock nut is characterized in that a metal locking plate with the inner diameter slightly smaller than the small diameter of the thread is embedded at the upper end of the nut, and when the lock nut is screwed, the interference fit between a bolt and the metal locking plate generates friction resistance, so that the loosening of a fastening piece is prevented, the conventional production process of the lock nut with the hexagonal flange surface of the locking plate needs 5 or 6 stations of cold heading machine production, the production efficiency is low, and the production cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cold heading forming die set for a locking nut with a locking plate hexagonal flange surface, which aims to solve the technical defects and the technical requirements which cannot be met in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a cold heading forming die set for locking nuts of locking plate hexagonal flange faces comprises a sizing die, a tube wall forming die, a hexagonal flange forming die and a punching die.

Preferably, the shaping die comprises a female die and a male die, the male die comprises a sequence upper punch, the female die comprises a sequence lower punch, and a sequence main die is arranged outside the lower punch.

Preferably, the pipe wall forming die comprises a female die and a male die, the male die of the pipe wall forming die comprises a two-sequence upper punch, the female die of the pipe wall forming die comprises a two-sequence lower punch, and a two-sequence main die is arranged on the outer side of the lower punch.

Preferably, the hexagonal flange forming die comprises a female die and a male die, the male die of the hexagonal flange forming die comprises a three-sequence upper punch, the female die of the hexagonal flange forming die comprises a three-sequence lower punch, and a three-sequence main die is arranged on the outer side of the lower punch.

Preferably, the punching die comprises a female die and a male die, the male die comprises a four-sequence upper punch, and the female die comprises a four-sequence main die.

Compared with the prior art, the utility model has the following beneficial effects: the conventional GB6183 nuts can be produced only on cold heading equipment with more than 5 stations, the production module of the GB6183 nuts is simplified, the cold heading die set with 4 stations is adopted for production, the forming process is reduced, the production period of the nuts is shortened, the production efficiency is improved, the requirement on the cold heading equipment is reduced, the cost of the dies is reduced, the production cost of the nuts is reduced, and the market competitiveness is improved.

Drawings

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

FIG. 2 is a schematic structural view of a tube wall forming mold according to the present invention;

FIG. 3 is a schematic structural diagram of a hexagonal flange forming die according to the present invention;

FIG. 4 is a schematic view of the structure of the punching die of the present invention;

FIG. 5 is a schematic view of the structure of the blank of the present invention;

FIG. 6 is a schematic structural diagram of the shaped blank according to the present invention;

FIG. 7 is a schematic structural diagram of the blank after the tube wall is formed according to the present invention;

FIG. 8 is a schematic structural diagram of a blank after forming the hexagonal flange according to the present invention;

FIG. 9 is a schematic view of a punched blank according to the present invention;

in the figure: 11-first-order uprush; 12-one-order master mold; 13-one-order undershoot; 21-ascending in a second sequence; 22-two-order master mode; 23-second order undershoot; 31-uprush in a three-sequence; 32-three-order main mode; 33-three-order undershoot; 41-uprush in a four-sequence; 42-four-sequence main model.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a cold heading forming die set for locking nuts of locking plate hexagonal flange faces comprises a sizing die, a tube wall forming die, a hexagonal flange forming die and a punching die.

Preferably, the shaping die comprises a female die and a male die, the male die of the shaping die comprises a sequence upper punch 11, the female die of the shaping die comprises a sequence lower punch 13, and a sequence main die 12 is arranged outside the lower punch; the sizing die is used for upsetting blanks to achieve the required shape.

Preferably, the pipe wall forming die comprises a female die and a male die, the male die of the pipe wall forming die comprises a two-sequence upper punch 21, the female die of the pipe wall forming die comprises a two-sequence lower punch 23, and a two-sequence main die 22 is arranged outside the lower punch; the pipe wall forming die is used for forming the pipe wall of the nut.

Preferably, the hexagonal flange forming die comprises a female die and a male die, the male die of the hexagonal flange forming die comprises a three-sequence upper punch 31, the female die of the hexagonal flange forming die comprises a three-sequence lower punch 33, a three-sequence main die 32 is arranged on the outer side of the lower punch, and the hexagonal flange forming die is used for forming the hexagon and the flange of the nut.

Preferably, the punching die comprises a female die and a male die, the male die comprises a four-sequence upper punch 41, and the female die comprises a four-sequence main die 42; the punching die is used for removing waste materials in the middle of the nut blank to form a through hole.

The working principle is as follows:

(1) cutting the material into required length by a cutter to form an original blank;

(2) feeding the original blank into a shaping module, and driving the blank into a shaping die female die by a shaping die male die to carry out upsetting and straightening to obtain a required shape to form a shaped blank;

(3) feeding the shaped blank into a pipe wall forming module, and driving the shaped blank into a female die by a pipe wall forming die male die to form the pipe wall;

(4) feeding the blank formed by the pipe wall into a hexagonal flange forming module, and driving the blank formed by the pipe wall into a female die by a male die of the hexagonal flange forming die so as to form a hexagon and a flange;

(5) and feeding the blank formed by the hexagonal flange into a punching module, driving the blank into a female die by a punching die male die, removing redundant waste, forming an inner hole, and finishing the manufacture of a finished product.

For ease of description, the orientations referred to above are now specified as follows: the up, down, left, right, and front-back directions described above coincide with the up, down, left, right, and front-back directions of the projection relation of fig. 1 itself.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A cold heading forming die set of locking nuts of locking plate hexagonal flange faces is characterized by comprising a sizing die, a pipe wall forming die, a hexagonal flange forming die and a punching die;

the shaping die comprises a female die and a male die, the male die of the shaping die comprises a sequence upper punch (11), the female die of the shaping die comprises a sequence lower punch (13), and a sequence main die (12) is arranged on the outer side of the lower punch;

the pipe wall forming die comprises a female die and a male die, the male die of the pipe wall forming die comprises a two-sequence upper punch (21), the female die of the pipe wall forming die comprises a two-sequence lower punch (23), and a two-sequence main die (22) is arranged on the outer side of the lower punch.

2. The cold-heading forming die set for the locking nut of the hexagonal flange face of the locking plate according to claim 1, wherein the hexagonal flange forming die comprises a female die and a male die, the male die of the hexagonal flange forming die comprises a three-step upper punch (31), the female die of the hexagonal flange forming die comprises a three-step lower punch (33), and a three-step main die (32) is arranged outside the lower punch.

3. The cold-heading forming die set for locking nuts of locking plate hexagonal flange faces, according to claim 1, characterized in that the punching die comprises a female die and a male die, the male die comprises a four-sequence punch (41), and the female die comprises a four-sequence main die (42).