CN215315153U

CN215315153U - Bulging die for water nozzle of cylinder head cover

Info

Publication number: CN215315153U
Application number: CN202121752812.3U
Authority: CN
Inventors: 邓景新; 姚星强
Original assignee: Zhaoqing Gaoyao District Hengli Machinery Manufacturing Co ltd
Current assignee: Zhaoqing Gaoyao District Hengli Machinery Manufacturing Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-28
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to an expansion die, in particular to an expansion die for a water nozzle of a cylinder head cover. The bulging die comprises a fixed die assembly and a movable die assembly, the fixed die assembly comprises a fixed die base, a fixed die clamping die and a tail top, the fixed die clamping die is located in a first mounting hole of the fixed die base, a second mounting hole for accommodating a water nozzle blank is formed in the fixed die clamping die, and the tail top is located in the second mounting hole. The movable die assembly comprises a movable die holder, a movable die core rod and a forming insert, the forming insert is provided with a forming cavity, the movable die core rod is installed in the forming cavity, and the forming insert is embedded in the movable die holder. The forming insert is made of hard alloy, the forming insert is high in strength and wear-resistant, and the formed product is high in forming precision. The whole bulging die is compact in structure, easy to install, capable of keeping a stable state in the stamping process and capable of meeting the requirements of mass production and high precision.

Description

Bulging die for water nozzle of cylinder head cover

Technical Field

The utility model relates to an expansion die, in particular to an expansion die for a water nozzle of a cylinder head cover.

Background

The cylinder head cover is a sealing cover covering the engine cylinder block, and can prevent external pollutants such as dirt, moisture and the like from entering the engine, so that the sealing effect is achieved. The cylinder head cover water injection well choke is the important part of cylinder head cover, consequently, has higher requirement to the intensity and the life of cylinder head cover water injection well choke. The existing water nozzle is generally processed by the procedures of bulging, bending and the like on a water nozzle blank.

However, the existing bulging die is complex in structure and easy to wear, and the service life of the die and the precision of a product are affected.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the bulging die for the water nozzle of the cylinder head cover, which can simplify the die structure, prolong the service life of the die and improve the processing precision of products.

The bulging die for the water nozzle of the cylinder head cover comprises a fixed die assembly and a movable die assembly. The fixed die assembly comprises a fixed die seat, a fixed die clamp die and a tail top, the fixed die seat is provided with a first mounting hole for accommodating the fixed die clamp die, a second mounting hole for accommodating a water nozzle blank is arranged in the fixed die clamp die, the tail top is positioned in the second mounting hole, and the tail top supports the water nozzle blank; the movable die assembly comprises the movable die holder, the movable die core rod and the forming insert, the forming insert is provided with a forming cavity, and the movable die core rod is located in the forming cavity.

The water nozzle bulging die for the cylinder head cover disclosed by the embodiment of the utility model at least has the following beneficial effects: the die structure is simplified, and the processing cost is reduced; the operation of the working process is simple, and the water nozzle blank is accurately positioned; the abrasion of the die is reduced, and the service life of the die is prolonged; the stamping process is stable, and the product with high processing precision is produced while the production efficiency is improved.

According to some embodiments of the utility model, the fixed die holder is composed of a first die part and a second die part.

The beneficial results are: the fixed die base is composed of a first die part and a second die part, so that the fixed die base is convenient to mount and dismount, the whole stamping process is kept in a stable state by the fixed die base, and the reliability of the die is improved.

According to some embodiments of the utility model, the fixed die clamp die is composed of a first die block and a second die block.

The beneficial results are: the fixed die clamp die consists of a first module and a second module, is cylindrical in appearance, occupies a small space of the fixed die holder and is convenient to fix on the fixed die holder; in the stamping process, the dynamic die holder is stressed uniformly when being pressed to the water nozzle blank.

According to some embodiments of the utility model, the fixed die holder is provided with the limit counter bore, the fixed die clamp die is provided with the limit convex ring, and the limit counter bore is fixedly overlapped with the limit convex ring.

The beneficial results are: the fixed die holder is lapped with the fixed die clamping die, so that the fixed die clamping die is accurately positioned; in the stamping process, the fixed die clamping die is stably lapped in the fixed die seat, so that the fixed die assembly has good stability.

According to some embodiments of the utility model, the limiting counter bore and the limiting convex ring are both annular.

The beneficial results are: the limiting counter bore is fixedly lapped with the limiting convex ring, so that the stamping stress is uniform, the stability is good, and the operation, adjustment, disassembly and replacement are convenient.

According to some embodiments of the utility model, the movable die holder is provided with a circular groove, and the forming insert is located in the circular groove.

The beneficial results are: the circular groove is simple in structure and easy to process, the forming insert is inlaid in the circular groove, adjustment and replacement are facilitated, adjustment time is shortened, and machining efficiency is improved.

According to some embodiments of the utility model, the movable die holder is provided with the mounting shank.

The beneficial results are: the movable die holder is provided with the installation handle, an inclined notch is formed in the side face of the installation handle, the movable die holder is convenient to clamp on a punching machine, the operation process of installation and disassembly is simple, and the working efficiency can be improved.

According to some embodiments of the utility model, the formed insert is made of cemented carbide material.

The beneficial results are: the formed insert made of the hard alloy has high hardness, wear resistance and better strength, particularly high hardness and wear resistance, is basically unchanged at high temperature, and can meet the requirement of producing high-precision products.

According to some embodiments of the utility model, the moving die holder is provided with the first through hole, the forming insert is provided with the second through hole, the first through hole is communicated with the second through hole, the moving die core rod is provided with a first core part and a second core part, the first core part is positioned in the first through hole, and the second core part is positioned in the second through hole.

The beneficial results are: the movable mould core rod is arranged in the first through hole and the second through hole, and is convenient to detach and replace, the movable mould core rod penetrates through the second through hole, the water nozzle blank has the effect of accurately positioning the water nozzle blank through the water nozzle opening of the water nozzle blank, and the water nozzle blank can be prevented from being contracted and deformed when being formed by stamping.

Drawings

The utility model will be apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an enlarged view of a point a in fig. 1.

Reference numerals: the water nozzle blank forming die comprises a fixed die assembly 100, a positioning seat 110, a fixed die clamping die 120, a tail top 130, a water nozzle blank 140, a movable die assembly 150, a movable die seat 160, a movable die core rod 170, a forming insert 180, a first die part 190, a second die part 200, a first die block 210, a second die block 220, a limiting counter bore 230, a limiting convex ring 240, a mounting handle 250, a first through hole 260 and a second through hole 270.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that the terms mounted, connected and the like are to be construed broadly and their specific meanings in the present invention can be understood in a concrete manner by those skilled in the art, unless otherwise specifically defined and limited.

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1, an embodiment of an expansion die for a water nozzle of a cylinder head cover is provided.

Structurally, the expansion die is formed by the fixed die assembly 100 and the movable die assembly 150 together.

The fixed die assembly 100 is composed of a fixed die holder 110, a fixed die clamping die 120 and a tail top 130. The first mounting hole of the fixed die holder 110 is used for placing the fixed die clamp 120, and the second mounting hole of the fixed die clamp 120 is used for placing the water nozzle blank 140. In order to avoid the water nozzle blank 140 from shifting during the stamping process, the water nozzle blank 140 is supported by the tail top 130 in the second mounting hole, and the fixed die clamp 120 is mounted and fixed in the fixed die holder 110 in order to keep the whole process in a stable state.

In addition, the movable die assembly 150 is comprised of a movable die base 160, a movable die core rod 170 and a forming insert 180. Specifically, the forming insert 180 is embedded in the movable mold base 160, and the forming insert 180 is provided with a forming cavity, so that the water nozzle blank 140 is stably formed; the movable die holder 160 is provided with a first through hole 260, the forming insert 180 is provided with a second through hole 270, and the first through hole 260 is communicated with the second through hole 270.

The bulging die is formed by the fixed die assembly 100 and the movable die assembly 150 together, so that the die structure can be simplified, and the processing cost is reduced; the movable mold core rod 170 is arranged in the movable mold base 160 and the forming insert 180, so that the structure is compact, and the whole working process is easy to operate; the tail cap 130 can accurately place the water nozzle blank 140 in the fixed die clamping die 120; in addition, the forming insert 180 is embedded in the movable die holder 160, and the hard alloy material can reduce the abrasion of the die and prolong the service life of the die; the whole stamping process is stable, the production efficiency is improved, and meanwhile, products with high machining precision can be produced.

In order to facilitate the installation and disassembly of the die, to make the whole stamping process in a stable state, and to improve the reliability of the die, the fixed die holder 110 may be composed of a first die part 190 and a second die part 200. The fixed die clamping die 120 is formed by the first die block 210 and the second die block 220 in a fixed matching mode, the fixed die clamping die 120 is cylindrical, occupies less space of the fixed die holder 110 and can be adapted to the fixed die holder 110, and when the punching machine drives the movable die holder 160 to press the water nozzle blank 140 during punching work, the fixed die clamping die 120 is stressed uniformly.

Referring to FIG. 2, the fixed die holder 110 is provided with a retainer counterbore 230, and the fixed die clamp 120 is provided with a retainer raised ring 240. The limiting counter bore 230 supports the limiting convex ring 240, so that the fixed die clamp 120 is fixed on the fixed die holder 110, the fixed die clamp 120 is accurately positioned, the fixed die clamp 120 can be stably fixed in the die holder in the stamping process, and the whole fixed die assembly 100 has good stability.

In addition, the limiting counter bore 230 and the limiting convex ring 240 are both annular. When the limiting counter bore 230 is fixedly lapped with the limiting convex ring 240, the force applied during stamping is uniform, the stability is good, the operation, adjustment, disassembly and replacement are convenient, and the production efficiency is effectively improved.

Referring to fig. 1 and 2, the movable die holder 160 is provided with a circular groove, and the insert mold 180 is inserted into the circular groove of the movable die holder 160. So, the simple structure of circular recess, easily processing, shaping mold insert 180 inlays in circular recess, and the adjustment of being convenient for is changed, reduces the adjustment time, improves machining efficiency.

Further, the movable die holder 160 is provided with a mounting shank 250. The operation of the installation and the disassembly of the movable die holder 160 is simple, and the working efficiency is improved. The movable die holder 160 is provided with a mounting handle 250, so that the movable die holder 160 can be conveniently mounted on a punching machine, wherein an inclined notch is formed in the side surface of the mounting handle 250, and the mounting handle 250 is clamped by an upper clamping plate of the punching machine.

Specifically, the formed insert 180 is made of cemented carbide. The forming insert can be made of SKD11, SKH51, SKH-9 and tungsten steel, but is not limited to the above. Thus, the formed insert 180 made of cemented carbide has high hardness, wear resistance, and strength, and particularly, high hardness and wear resistance, and the performance can be maintained substantially unchanged even at high temperatures, thereby satisfying the demand for producing high-precision products.

Referring to fig. 2, the movable mold base 160 is provided with a first through hole 260, the forming insert 180 is provided with a second through hole 270, and the first through hole 260 is communicated with the second through hole 270; the first core portion of moving die core pin 170 is located in first through hole 260 to facilitate removal and replacement of moving die core pin 170. In addition, the second core part of the movable die core bar 170 is located in the second through hole 270, and the second core part of the movable die core bar 170 penetrates through the water nozzle opening of the water nozzle blank 140, so that the structure is compact and reasonable, the movable die core bar 170 has a positioning function, the water nozzle blank 140 is not deviated, and meanwhile, the water nozzle blank 140 can be prevented from being shrunk and deformed during water nozzle opening forming in the stamping process.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides an expanding die of cylinder head cover water injection well choke which characterized in that includes:

the fixed die assembly (100) comprises a fixed die holder (110), a fixed die clamping die (120) and a tail top (130), wherein the fixed die holder (110) is provided with a first mounting hole for accommodating the fixed die clamping die (120), a second mounting hole for accommodating a water nozzle blank (140) is arranged in the fixed die clamping die (120), and the tail top (130) is positioned in the second mounting hole;

the movable mold assembly (150) comprises a movable mold base (160), a movable mold core rod (170) and a forming insert (180), wherein the forming insert (180) is provided with a forming cavity, and the movable mold core rod (170) is located in the forming cavity.

2. The bulging die for a water nozzle of a cylinder head cover according to claim 1, characterized in that the fixed die holder (110) is composed of a first die part (190) and a second die part (200).

3. The bulging die for a water nozzle of a cylinder head cover according to claim 1, characterized in that the fixed die clamp die (120) is composed of a first die block (210) and a second die block (220).

4. The bulging die for the water nozzle of the cylinder head cover according to the claim 1, characterized in that the fixed die holder (110) is provided with a limiting counter bore (230), the fixed die clamp die (120) is provided with a limiting convex ring (240), and the limiting counter bore (230) is overlapped with the limiting convex ring (240).

5. The bulging die for water nozzles of a cylinder head cover according to claim 4, characterized in that the limiting counter bore (230) and the limiting convex ring (240) are both annular.

6. The bulging die for a water nozzle of a cylinder head cover according to claim 1, characterized in that the moving die holder (160) is provided with a circular groove, and the forming insert (180) is located in the circular groove.

7. The bulging die for the water nozzle of the cylinder head cover according to claim 1, characterized in that the movable die holder (160) is provided with a mounting handle (250), and the side surface of the mounting handle (250) is provided with a slope notch.

8. The bulging die for a water nozzle of a cylinder head cover according to claim 1, characterized in that the forming insert (180) is made of cemented carbide material.

9. The bulging die for a water nozzle of a cylinder head cover according to claim 1, characterized in that the moving die holder (160) is provided with a first through hole (260), the forming insert (180) is provided with a second through hole (270), the first through hole (260) is communicated with the second through hole (270), the moving die core rod (170) is provided with a first core part and a second core part, the first core part is located at the first through hole (260), and the second core part is located at the second through hole (270).