Die for die forging blank making of special-shaped conductor for extra-high voltage

Abstract

The utility model discloses a die for die forging blank making of special-shaped conductors for extra-high voltage, which comprises an upper die structure, a lower die structure and a lower die structure, and the inner wall of the upper die structure is in sliding connection with the outer wall of the lower die structure; the utility model relates to the technical field of die forging blank making dies, which ensures high-precision alignment of an upper die and a lower die in a die assembly process through the matching of an upper die structure, a lower die structure, a positioning pin on a lower die plate and an upper die plate, and ensures that a rubber pad is in close contact with the bottom of the lower die plate by rotating a threaded rod after the dies are assembled in place. Meanwhile, the sealing gasket is tightly attached to the top of the lower die plate, a reliable sealing structure and overflow ports arranged in an array mode are formed, redundant materials can be discharged in time in the material injection process, through cooperation of the clamping blocks and the clamping grooves, the die blank is extremely easy and convenient to install and fix, the die blank only needs to be placed in along the inner wall of the lower die plate, and after the clamping grooves are aligned with the clamping blocks, the die blank can be conveniently and rapidly installed. And the die blank can be quickly positioned and fixed through the springback reset function of the compression spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of die forging blank mould, specifically relates to a mould for special high voltage use special-shaped conductor die forging blank. BACKGROUND

[0002] With the rapid development of extra-high voltage transmission technology, the demand of special high voltage use special-shaped conductor is increasing, the quality and performance of special-shaped conductor are important for the safe and stable operation of extra-high voltage transmission system, and the performance of the mould directly affects the quality and production efficiency of the product as the key link in the production process of special-shaped conductor.

[0003] The traditional die forging blank mould has the problems of insufficient die closing precision, and the upper and lower moulds are often not accurately aligned, which leads to frequent quality problems such as size deviation of forgings, wrong moulds, etc. In addition, during the installation and replacement of the mould blank and the demoulding process of the blank, the operation of the traditional mould is complex and tedious, the labor intensity is large, and the required time is long, which not only reduces the production efficiency, but also requires high skills of the operators, is not conducive to the development of large-scale industrial production, and due to the problems such as difficult demoulding, the mould is also easily damaged, the service life of the mould is shortened, and the production cost and production cycle are further increased. SUMMARY

[0004] In view of the defects of the prior art, the utility model adopts the technical scheme to solve the technical problems, that is, a mould for special high voltage use special-shaped conductor die forging blank, characterized in that it comprises: an upper mould structure, the inner wall of the upper mould structure is slidably connected with the outer wall of a lower mould structure; the lower mould structure comprises a lower mould plate, the outer wall of the top of the lower mould plate is fixedly connected with a positioning pin, the inner wall of the lower mould plate is slidably connected with a mould blank, the outer wall of the side of the mould blank is symmetrically provided with a clamping groove, the inner wall of the side of the lower mould plate is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a clamping block, the outer wall of the clamping block is symmetrically fixedly connected with a sliding rod, the outer wall of the sliding rod is fixedly connected with a pull plate, the outer wall of the clamping block is symmetrically fixedly connected with a compression spring, the inner wall of the bottom of the lower mould plate is slidably connected with a lifting rod, the outer wall of the top of the lifting rod is fixedly connected with a top plate, and the outer wall of the bottom of the lifting rod is fixedly connected with a pressure spring.

[0005] Preferably, the outer wall of the side, away from the clamping block, of the compression spring is fixedly connected with the inner wall of the sliding groove, the outer wall of the sliding rod is slidably connected with the inner wall of the lower mould plate, and the outer wall of the clamping block is slidably connected with the inner wall of the clamping groove. When the mould blank slides downward along the inner wall of the lower mould plate, it is in contact with the outer wall of the clamping block, the clamping block is extruded to slide outward along the sliding groove through the inclined surface of the outer wall of the clamping block, and the compression spring is compressed to store energy. When the mould blank slides to the bottom, the clamping groove corresponds to the clamping block, and under the action of the elastic force of the compression spring, the clamping block is pushed into the clamping groove, so that the installation and fixation of the mould blank are realized.

[0006] Preferably, the positioning pins are arranged in an array at the four corners of the lower template, the outer wall of the top plate is slidably connected to the inner wall of the bottom of the lower template, and the outer wall of the pressure spring on the side away from the push rod is fixedly connected to the outer wall of the bottom of the lower template. By applying an upward force to the push rod to overcome the elastic force of the pressure spring, the push rod pushes the top plate upward, and the top plate will push the forged blank out of the lower template, thereby realizing the separation of the blank from the mold.

[0007] Preferably, the upper mold structure includes an upper mold plate, an injection port is fixedly connected to the inner wall of the top of the upper mold plate, an overflow port is opened on the outer wall of the top of the upper mold plate, a fixing plate is rotatably connected to the inner wall of the side of the upper mold plate, a threaded rod is threadedly connected to the inner wall of the fixing plate away from the upper mold plate, a rubber pad is fixedly connected to the outer wall of the threaded rod, and a sealing gasket is fixedly connected to the outer wall of the bottom of the upper mold plate.

[0008] Preferably, the overflow ports are arranged in an array along the outer wall of the upper template, and the fixing plates are arranged in an array along the outer wall of the upper template. The overflow ports can allow excess material to overflow during operations such as material injection, ensuring reasonable control of the amount of material in the mold cavity and reasonable adjustment of the internal pressure.

[0009] Preferably, the outer wall of the positioning pin is slidably connected to the inner wall of the bottom of the upper template, the outer wall of the top of the lower template is in contact with the outer wall of the bottom of the sealing gasket, the outer wall of the top of the mold blank is in contact with the outer wall of the bottom of the upper template, and the outer wall of the bottom of the lower template is in contact with the outer wall of the rubber gasket. The upper template slides down along the positioning pin on the lower template to ensure accurate alignment of the upper and lower molds during the mold closing process. When the upper template descends to the correct position, the threaded rod connected to the fixed plate rotatably on its inner side can make the rubber gasket tightly contact the outer wall of the bottom of the lower template by rotating the threaded rod. At the same time, the sealing gasket will be tightly contacted with the outer wall of the top of the lower template to achieve a sealing effect.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting an upper mold structure and cooperating with the positioning pin on the lower mold plate to the upper mold plate, ensures high-precision alignment of the upper and lower molds during the mold closing process, effectively avoiding quality problems such as forging size deviation and mold misalignment caused by inaccurate mold closing. After the mold is closed, the rubber pad is tightly contacted with the bottom of the lower mold plate by rotating the threaded rod, and at the same time the sealing gasket is tightly fitted with the top of the lower mold plate, forming a reliable sealing structure. The injection port set at the top of the upper mold plate, combined with the array of overflow ports, can timely discharge excess material during the material injection process, realizing precise control of the amount of material in the mold cavity, and avoiding the impact of too much or too little material on the forming quality of the blank.

[0012] 2. This utility model, through the design of a lower mold structure with clamping blocks and clamping grooves, simplifies the installation and fixing of the mold blank. Simply place the mold blank along the inner wall of the lower mold plate, and let it slide outward along the groove using the inclined structure of the clamping blocks. Once the clamping groove and clamping blocks are aligned, the mold blank can be quickly positioned and fixed by the spring return function. When it is necessary to replace the mold blank, the clamping blocks and clamping grooves can be separated by pulling the pull plate, making it easy to remove the mold blank. The operation is convenient and quick, reducing the labor intensity and difficulty of the operators. After the die forging is completed, simply apply an upward force to the ejector rod to easily push the formed blank out of the mold, achieving rapid separation of the blank from the mold and improving production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the lower mold structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the mold blank of this utility model;

[0016] Figure 4 This is a schematic diagram of the lower template of this utility model;

[0017] Figure 5 This is a utility model Figure 4 A schematic diagram of the structure at point A;

[0018] Figure 6 This is a schematic diagram of the structure of the push rod of this utility model;

[0019] Figure 7 This is a schematic diagram of the upper mold structure of this utility model;

[0020] Figure 8 This is a schematic diagram of the structure of the sealing gasket of this utility model.

[0021] In the diagram: 1. Upper mold structure; 11. Upper template; 12. Injection port; 13. Overflow port; 14. Fixing plate; 15. Threaded rod; 16. Rubber pad; 17. Sealing gasket; 2. Lower mold structure; 21. Lower template; 211. Locating pin; 22. Mold blank; 221. Clamping groove; 23. Sliding groove; 24. Clamping block; 25. Sliding rod; 26. Pull plate; 27. Compression spring; 28. Ejector rod; 29. ​​Ejector plate; 291. Pressure spring. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0023] Example:

[0024] Please see Figure 1 - Figure 8 This utility model provides a technical solution: a mold for forging blanks of irregularly shaped conductors for ultra-high voltage applications, characterized in that it includes: an upper mold structure 1, the inner wall of the upper mold structure 1 being slidably connected to the outer wall of the lower mold structure 2; the lower mold structure 2 includes a lower template 21, a positioning pin 211 being fixedly connected to the outer wall of the top of the lower template 21, a blank 22 being slidably connected to the inner wall of the lower template 21, clamping grooves 221 being symmetrically opened on the outer wall of the side of the blank 22, a sliding groove 23 being opened on the inner wall of the side of the lower template 21, a clamping block 24 being slidably connected to the inner wall of the sliding groove 23, a sliding rod 25 being symmetrically fixedly connected to the outer wall of the clamping block 24, a pull plate 26 being fixedly connected to the outer wall of the sliding rod 25, a compression spring 27 being symmetrically fixedly connected to the outer wall of the clamping block 24, a top rod 28 being slidably connected to the inner wall of the bottom of the lower template 21, a top plate 29 being fixedly connected to the outer wall of the top of the top rod 28, and a pressure spring 291 being fixedly connected to the outer wall of the bottom of the top rod 28.

[0025] The outer wall of the compression spring 27 away from the clamping block 24 is fixedly connected to the inner wall of the slide groove 23. The outer wall of the slide rod 25 is slidably connected to the inner wall of the lower template 21. The outer wall of the clamping block 24 is slidably connected to the inner wall of the clamping groove 221. When the mold blank 22 slides down along the inner wall of the lower template 21, it contacts the outer wall of the clamping block 24. Through the inclined surface of the outer wall of the clamping block 24, the clamping block 24 is squeezed and slides outward along the slide groove 23. The compression spring 27 is compressed and stores force. When the mold blank 22 slides to the bottom, the clamping groove 221 corresponds to the clamping block 24. Under the elastic force of the compression spring 27, the clamping block 24 is pushed into the clamping groove 221, thereby realizing the installation and fixation of the mold blank 22.

[0026] Positioning pins 211 are arranged in an array at the four corners of the lower template 21. The outer wall of the top plate 29 is slidably connected to the inner wall of the bottom of the lower template 21. The outer wall of the pressure spring 291 on the side away from the push rod 28 is fixedly connected to the outer wall of the bottom of the lower template 21. By applying an upward force to the push rod 28 to overcome the elastic force of the pressure spring 291, the push rod 28 pushes the top plate 29 upward. The top plate 29 will push the forged blank out of the lower template 21, thereby realizing the separation of the blank from the mold.

[0027] The upper mold structure 1 includes an upper mold plate 11. An injection port 12 is fixedly connected to the inner wall of the top of the upper mold plate 11. An overflow port 13 is opened on the outer wall of the top of the upper mold plate 11. A fixing plate 14 is rotatably connected to the inner wall of the side of the upper mold plate 11. A threaded rod 15 is threadedly connected to the inner wall of the fixing plate 14 on the side away from the upper mold plate 11. A rubber pad 16 is fixedly connected to the outer wall of the threaded rod 15. A sealing pad 17 is fixedly connected to the outer wall of the bottom of the upper mold plate 11.

[0028] The overflow ports 13 are arranged in an array along the outer wall of the upper template 11, and the fixing plates 14 are arranged in an array along the outer wall of the upper template 11. The overflow ports 13 can allow excess material to overflow during operations such as material injection, ensuring reasonable control of the amount of material in the mold cavity and reasonable adjustment of the internal pressure.

[0029] The outer wall of the positioning pin 211 is slidably connected to the inner wall of the bottom of the upper template 11. The outer wall of the top of the lower template 21 is in contact with the outer wall of the bottom of the sealing gasket 17. The outer wall of the top of the mold blank 22 is in contact with the outer wall of the bottom of the upper template 11. The outer wall of the bottom of the lower template 21 is in contact with the outer wall of the rubber gasket 16. The upper template 11 slides down along the positioning pin 211 on the lower template 21 to ensure accurate alignment of the upper and lower molds during the mold closing process. When the upper template 11 is lowered into place, the threaded rod 15 threaded on the fixed plate 14 rotatably connected to its inner side can make the rubber gasket 16 tightly contact the outer wall of the bottom of the lower template 21 by rotating the threaded rod 15. At the same time, the sealing gasket 17 will be tightly contacted with the outer wall of the top of the lower template 21 to play a sealing role.

[0030] Working principle:

[0031] In use, firstly, the die blank 22 is placed inside the inner wall of the lower template 21 in the lower die structure 2. As the die blank 22 slides down along the inner wall of the lower template 21, it contacts the outer wall of the clamping block 24. Through the inclined surface of the outer wall of the clamping block 24, the clamping block 24 is squeezed and slides outward along the slide groove 23. The compression spring 27 is compressed and stores force. When the die blank 22 slides to the bottom, the clamping groove 221 corresponds to the clamping block 24. Under the elastic force of the compression spring 27, the clamping block 24 is pushed into the clamping groove 221, thereby realizing the installation and fixation of the die blank 22 and preparing for subsequent die forging operations. Conversely, to replace the die blank 22, simply pull the pull plate 26, and the clamping block 24 will be separated from the clamping groove 221 through the slide rod 25, so that the die blank 22 can be taken out from the lower template 21.

[0032] Next, the upper template 11 is slid down along the positioning pin 211 on the lower template 21 to ensure accurate alignment of the upper and lower molds during the mold closing process. After the upper template 11 is lowered into place, the threaded rod 15 connected to the fixed plate 14 on its inner side can be rotated to make the rubber pad 16 come into close contact with the outer wall of the bottom of the lower template 21. At the same time, the sealing pad 17 will come into close contact with the outer wall of the top of the lower template 21 to play a sealing role and prevent material leakage in subsequent operations, thereby further enhancing the stability and sealing performance after the upper and lower molds are closed.

[0033] In the upper mold structure 1, the upper mold plate 11 has an injection port 12 on its top inner wall. Through the injection port 12, relevant materials for die forging blanks can be injected. The upper mold plate 11 also has overflow ports 13. The array of overflow ports 13 can cause excess material to overflow during the injection process, ensuring reasonable control of the amount of material in the mold cavity and reasonable adjustment of the internal pressure.

[0034] After the forging process is completed, the formed billet needs to be removed from the mold. At this time, the ejector rod 28, which is slidably connected to the inner wall of the bottom of the lower mold plate 21, comes into play. By applying an upward force to the ejector rod 28, the elastic force of the pressure spring 291 is overcome, and the ejector rod 28 pushes the top plate 29 upward. The top plate 29 will push the forged billet out of the lower mold plate 21, thereby separating the billet from the mold. When the ejector rod 28 is released, the pressure spring 291 causes the ejector rod 28 to drive the top plate 29 to return to its original position.

[0035] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A die for forging blanks of irregularly shaped conductors for ultra-high voltage applications, characterized in that, include: The upper mold structure (1) has its inner wall slidably connected to the outer wall of the lower mold structure (2); The lower mold structure (2) includes a lower mold plate (21). A positioning pin (211) is fixedly connected to the outer wall of the top of the lower mold plate (21). A mold blank (22) is slidably connected to the inner wall of the lower mold plate (21). A clamping groove (221) is symmetrically opened on the outer wall of the side of the mold blank (22). A sliding groove (23) is opened on the inner wall of the side of the lower mold plate (21). A clamping block (24) is slidably connected to the inner wall of the sliding groove (23). A sliding rod (25) is symmetrically fixedly connected to the outer wall of the clamping block (24). A pull plate (26) is fixedly connected to the outer wall of the sliding rod (25). A compression spring (27) is symmetrically fixedly connected to the outer wall of the clamping block (24). A top rod (28) is slidably connected to the inner wall of the bottom of the lower mold plate (21). A top plate (29) is fixedly connected to the outer wall of the top of the top rod (28). A pressure spring (291) is fixedly connected to the outer wall of the bottom of the top rod (28).

2. The mold for forging blanks of irregularly shaped conductors for ultra-high voltage applications according to claim 1, characterized in that: The outer wall of the compression spring (27) away from the clamping block (24) is fixedly connected to the inner wall of the slide groove (23), the outer wall of the slide rod (25) is slidably connected to the inner wall of the lower template (21), and the outer wall of the clamping block (24) is slidably connected to the inner wall of the clamping groove (221).

3. A die for forging billets of irregularly shaped conductors for ultra-high voltage applications according to claim 1, characterized in that: The positioning pins (211) are arranged in an array at the four corners of the lower template (21), the outer wall of the top plate (29) is slidably connected to the inner wall of the bottom of the lower template (21), and the outer wall of the pressure spring (291) on the side away from the top rod (28) is fixedly connected to the outer wall of the bottom of the lower template (21).

4. A die for forging billets of irregularly shaped conductors for ultra-high voltage applications according to claim 1, characterized in that: The upper mold structure (1) includes an upper mold plate (11), an injection port (12) is fixedly connected to the inner wall of the top of the upper mold plate (11), an overflow port (13) is opened on the outer wall of the top of the upper mold plate (11), a fixing plate (14) is rotatably connected to the inner wall of the side of the upper mold plate (11), a threaded rod (15) is threadedly connected to the inner wall of the fixing plate (14) away from the upper mold plate (11), a rubber pad (16) is fixedly connected to the outer wall of the threaded rod (15), and a sealing pad (17) is fixedly connected to the outer wall of the bottom of the upper mold plate (11).

5. A die for forging billets of irregularly shaped conductors for ultra-high voltage applications according to claim 4, characterized in that: The overflow ports (13) are arranged in an array along the outer wall of the upper template (11), and the fixing plates (14) are arranged in an array along the outer wall of the upper template (11).

6. A die for forging billets of irregularly shaped conductors for ultra-high voltage applications according to claim 1, characterized in that: The outer wall of the positioning pin (211) is slidably connected to the inner wall of the bottom of the upper template (11), the outer wall of the top of the lower template (21) is in contact with the outer wall of the bottom of the sealing gasket (17), the outer wall of the top of the mold blank (22) is in contact with the outer wall of the bottom of the upper template (11), and the outer wall of the bottom of the lower template (21) is in contact with the outer wall of the rubber pad (16).

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