CN221790930U - Cold heading forming die set of lock nut - Google Patents

Abstract

The utility model provides a cold heading forming die set for a locking nut, which relates to the technical field of cold heading forming, and comprises a die base and a die mechanism. A die mechanism is arranged above the die base, and the die mechanism comprises a male die assembly, a female die assembly, a push rod assembly, a compression assembly and a screwdriver assembly. The screwdriver assembly adopts a detachable design, and can be replaced according to different production requirements before use. By replacing screwdrivers of different types or sizes, the die can adapt to locking nuts of different specifications, so that it has better flexibility and adaptability. The motor of the push rod assembly can provide a reliable power supply for the spiral cutter, so as to effectively process the notch of the locking nut. Some parts of the male die assembly and the female die assembly are made of wear-resistant and high-strength materials, which can meet the needs of long-term work. Through the setting of the shock-absorbing assembly, when in use, the damage to the die caused by impact and vibration can be alleviated, and the service life of the die can be extended.

Description

A cold heading forming die set for locking nut

Technical Field

The utility model relates to the technical field of cold heading forming, in particular to a cold heading forming die set for a locking nut.

Background Art

The cold heading die set for locking nuts is a forming device used to manufacture locking nuts, which can achieve large-scale, consistent and high-quality production of locking nuts. It is widely used in the manufacturing industry in the fields of automobiles, machinery, aerospace, etc. Cold heading is a metal forming process that compresses and plastically deforms the metal material by applying pressure to it at room temperature, so that it can be formed into the desired shape under the action of the die.

After searching, the patent number "CN215467864U" mentioned in the text that "a cold heading forming die set for a locking nut with a hexagonal flange surface, including a shaping die, a pipe wall forming die, a hexagonal flange forming die, and a punching die. Preferably, the shaping die includes a female die and a male die, the shaping die male die includes a sequence of upper punches, the shaping die female die includes a sequence of lower punches, and a sequence of main molds is arranged on the outer side of the lower punch. Conventional GB6183 nuts can only be produced on cold heading equipment with more than 5 stations. The utility model simplifies the GB6183 nuts. The production module of the mother adopts a 4-station cold heading die group, which reduces the forming process, shortens the production cycle of the nut, improves production efficiency, reduces the requirements for cold heading equipment, reduces the cost of the die, thereby reducing the cost of nut production and improving market competitiveness. When it is used, the original blank is fed into the die, the punching die male die drives the blank into the female die, removes excess waste, forms the inner hole, and completes the finished product. However, the equipment cannot meet the production of various types of locking nuts and lacks shock absorption function.

Therefore, we provide a cold heading forming die set for locking nuts to solve the above problems.

Utility Model Content

The utility model aims to provide a cold heading forming die set for a locking nut, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the utility model provides the following technical solutions: a cold heading forming die set for a locking nut, comprising a die base and a die mechanism, wherein the die mechanism is arranged above the die base;

The mold mechanism includes a male mold assembly, a female mold assembly, a push rod assembly, a compression assembly and a screwdriver assembly. The male mold assembly is installed on the top of the mold base, the female mold assembly is arranged above the male mold assembly, the push rod assembly is arranged inside the female mold assembly, the compression assembly is arranged on the outside of the push rod assembly, and the screwdriver assembly is arranged at the lower end of the compression assembly.

Preferably, the punch assembly comprises a punch housing, a punch rod and a mold core, the punch housing is mounted on the top end of the mold base, the punch rod is mounted on the inner side of the punch housing, and the mold core is mounted on the top end of the punch rod.

Preferably, the die assembly comprises a die shell and a limit clamping seat, the die shell is arranged above the mold core, and the inner side of the die shell is clamped with the limit clamping seat.

Preferably, the push rod assembly includes a rod body, a spiral cutter, a rod seat, and a motor. The rod body passes through the interior of the die shell, a spiral cutter is installed at one end of the rod body, a rod seat is installed at the other end of the rod body, and a motor is installed on the outside of the rod body.

Preferably, the compression assembly comprises a compression block and a compression spring, the compression block is arranged below the motor, and the compression spring is arranged outside the motor.

Preferably, the screwdriver assembly comprises a fixing seat and a cutter head, the lower end of the compression block is bolted to the fixing seat, and the cutter head is mounted on the surface of the fixing seat.

Preferably, a shock absorbing assembly is installed at the top of the die shell, and the shock absorbing assembly includes a shock absorbing column and a shock absorbing spring. The shock absorbing column is installed at the top of the die shell, and a shock absorbing spring is installed on the outer side of the shock absorbing column.

Compared with the prior art, the beneficial effects of the utility model are:

1. The screwdriver assembly adopts a detachable design. Before use, it can be replaced according to different production needs. By replacing screwdrivers of different types or sizes, the mold can adapt to locking nuts of different specifications, making it more flexible and adaptable.

2. The motor of the ejector assembly can provide reliable power supply for the spiral cutter, so that it can cut quickly and accurately during the cold heading process, thereby effectively processing the notch of the locking nut. Some parts of the punch assembly and the die assembly are made of wear-resistant and high-strength materials, so that the overall mold group has the advantages of being firm and not easy to deform, and can meet the needs of long-term work. Through the setting of the shock-absorbing assembly, the damage to the mold caused by impact and vibration can be alleviated during use, thereby extending the service life of the mold.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall appearance structure of the utility model;

FIG2 is a schematic diagram of the structure of the male mold assembly and the shock absorbing assembly of the utility model;

FIG3 is an enlarged structural schematic diagram of point A of the present invention;

FIG. 4 is a schematic structural diagram of a compression assembly and a screwdriver assembly of the present invention.

Numbers in the figure: 1. mold base; 2. shock-absorbing assembly; 21. shock-absorbing column; 22. shock-absorbing spring; 3. mold mechanism; 31. punch assembly; 311. punch shell; 312. punch rod; 313. mold core; 32. die assembly; 321. die shell; 322. limit clamp; 33. ejector assembly; 331. rod body; 332. spiral cutter; 333. rod seat; 334. motor; 34. compression assembly; 341. compression block; 342. compression spring; 35. screwdriver assembly; 351. fixing seat; 352. cutter head.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment 1

Please refer to FIGS. 1-4 , the utility model provides a technical solution: a cold heading forming die set for a locking nut, comprising a die base 1 and a die mechanism 3, wherein the die mechanism 3 is arranged above the die base 1;

The mold mechanism 3 includes a punch assembly 31, a die assembly 32, a push rod assembly 33, a compression assembly 34 and a screwdriver assembly 35. The punch assembly 31 is installed at the top of the mold base 1, the die assembly 32 is arranged above the punch assembly 31, the push rod assembly 33 is arranged inside the die assembly 32, the compression assembly 34 is arranged on the outside of the push rod assembly 33, and the screwdriver assembly 35 is arranged at the lower end of the compression assembly 34.

Furthermore, the punch assembly 31 includes a punch housing 311, a punch rod 312 and a mold core 313. The punch housing 311 is installed at the top of the mold base 1, the punch rod 312 is installed on the inner side of the punch housing 311, and the mold core 313 is installed at the top of the punch rod 312. Both the punch rod 312 and the mold core 313 are made of high-strength materials, which can withstand the high pressure and wear in the cold heading operation, and provide a stable and reliable forming effect.

Furthermore, the die assembly 32 includes a die shell 321 and a limit clamp 322. The die shell 321 is arranged above the mold core 313. The inner side of the die shell 321 is clamped with the limit clamp 322. The die shell 321 is made of wear-resistant and high-strength material, which makes the overall die have the advantages of being firm and not easy to deform, and can keep a high-quality working state for a long time.

Furthermore, the push rod assembly 33 includes a rod body 331, a spiral cutter 332, a rod seat 333, and a motor 334. The rod body 331 runs through the interior of the die housing 321. The spiral cutter 332 is installed at one end of the rod body 331, and the rod seat 333 is installed at the other end of the rod body 331. The motor 334 is installed on the outside of the rod body 331. The rod body 331 is made of sturdy and durable material and has sufficient strength and rigidity to enable it to maintain a stable working state for a long time. The motor 334 provides a reliable power supply for the spiral cutter 332, so that it can cut quickly and accurately during the cold heading process, thereby effectively processing the recess of the locking nut.

Furthermore, the compression assembly 34 includes a compression block 341 and a compression spring 342. The compression block 341 is arranged below the motor 334, and the compression spring 342 is arranged outside the motor 334. The compression block 341 is a block-shaped part used to apply compression force. It applies force evenly during the molding process, which can ensure the stability and consistency of the molding results.

Furthermore, the screwdriver assembly 35 includes a fixed seat 351 and a cutter head 352. The lower end bolt of the compression block 341 is connected to the fixed seat 351, and the cutter head 352 is installed on the surface of the fixed seat 351. The fixed seat 351 provides reliable support for the cutter head 352, thereby ensuring the stability and accuracy of the cutter head 352 during the molding process. The fixed seat 351 adopts a detachable and replaceable design, which can meet the molding requirements of locking nuts of different sizes and requirements.

Embodiment 2

Please refer to Figure 2, comparative example 1, as another implementation of the utility model, a shock-absorbing assembly 2 is installed at the top of the die shell 321, and the shock-absorbing assembly 2 includes a shock-absorbing column 21 and a shock-absorbing spring 22. The shock-absorbing column 21 is installed at the top of the die shell 321, and the shock-absorbing spring 22 is installed on the outer side of the shock-absorbing column 21. The shock-absorbing spring 22 is an elastic part that can provide elastic support during the cold heading process to reduce the transmission of impact and vibration.

Working principle: first, a cold heading forming die set of a locking nut is moved to the working position. When in use, the first step is to replace the screwdriver assembly 35 with the required screwdriver according to the requirements of this cold heading forming, and then place the workpiece material of the locking nut into the die core 313. The second step is that during the cold heading forming process, the punch rod 312 of the punch assembly 31 pushes the die core 313 to apply pressure to the die assembly 32. The third step is that during the process of applying pressure, the workpiece material of the locking nut touches the spiral cutter 332 of the push rod assembly 33, and then the motor 334 drives the spiral cutter 332 to rotate to cut the thread of the workpiece material of the locking nut. The fourth step is that the compression block 341 transmits the pressure to the compression spring 342, and the notch shape of the locking nut is cut by the cutter head 352 of the screwdriver assembly 35 while compressing. In this way, the use process of a cold heading forming die set of a locking nut is completed.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a lock nut's cold heading forming die group, includes die holder (1) and mould mechanism (3), its characterized in that: a die mechanism (3) is arranged above the die holder (1);

The die mechanism (3) comprises a male die assembly (31), a female die assembly (32), a push rod assembly (33), a compression assembly (34) and a screw cutter assembly (35), wherein the male die assembly (31) is arranged at the top end of the die holder (1), the female die assembly (32) is arranged above the male die assembly (31), the push rod assembly (33) is arranged inside the female die assembly (32), the compression assembly (34) is arranged outside the push rod assembly (33), and the screw cutter assembly (35) is arranged at the lower end of the compression assembly (34).

2. Cold heading forming die set for lock nuts according to claim 1, characterized in that the punch assembly (31) comprises a punch housing (311), a punch rod (312) and a die core (313), the punch housing (311) is mounted at the top end of the die holder (1), the punch rod (312) is mounted at the inner side of the punch housing (311), and the die core (313) is mounted at the top end of the punch rod (312).

3. The cold heading forming die set of the lock nut according to claim 2, wherein the die assembly (32) comprises a die shell (321) and a limiting clamping seat (322), the die shell (321) is arranged above the die core (313), and the limiting clamping seat (322) is clamped on the inner side of the die shell (321).

4. A cold heading forming die set for a lock nut according to claim 3, characterized in that the ejector rod assembly (33) comprises a rod body (331), a spiral cutter (332), a rod seat (333) and a motor (334), the rod body (331) is penetrated in the die shell (321), the spiral cutter (332) is installed at one end of the rod body (331), the rod seat (333) is installed at the other end of the rod body (331), and the motor (334) is installed at the outer side of the rod body (331).

5. The cold heading forming die set of a lock nut according to claim 4, characterized in that the compression assembly (34) comprises a compression block (341) and a compression spring (342), the compression block (341) is arranged below the motor (334), and the compression spring (342) is arranged outside the motor (334).

6. The cold heading forming die set of a lock nut according to claim 5, characterized in that the screw blade assembly (35) comprises a fixing seat (351) and a tool bit (352), the fixing seat (351) is connected to the lower end of the compression block (341) through bolts, and the tool bit (352) is mounted on the surface of the fixing seat (351).

7. A cold heading forming die set for a lock nut according to claim 3, characterized in that a damper assembly (2) is mounted at the top end of the die housing (321), the damper assembly (2) comprises a damper post (21) and a damper spring (22), the damper post (21) is mounted at the top end of the die housing (321), and the damper spring (22) is mounted at the outer side of the damper post (21).