Cold extrusion forming die for high-temperature alloy A286 self-locking fastener

Abstract

The utility model relates to the technical field of cold extrusion forming dies, and particularly discloses a cold extrusion forming die for a high-temperature alloy A286 self-locking fastener, which comprises an outer die, a die cavity is formed in the inner wall of the outer die, and an inner die mechanism is arranged in the die cavity; the inner mold mechanism comprises an inner mold block, the inner mold block penetrates into the mold groove, a cold pressing cavity is formed in the inner wall of the inner mold block, a forming block is fixed to the bottom end of the inner mold block, a connecting block is connected to the bottom end of the forming block, positioning blocks are fixed to the two sides of the interior of the mold groove, and limiting grooves are formed in the inner walls of the positioning blocks; the inner die block, the limiting plate, the forming block and the connecting block are uniformly poured into an integrated structure and are matched with the positioning block, the limiting groove and the bearing block, so that stable connection and limiting can be achieved, the situation of shaking or deviation in the cold pressing process is avoided, meanwhile, disassembly, assembly and replacement are convenient, and waste caused by overall replacement with an outer die is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cold extrusion forming dies, in particular to a cold extrusion forming die for a high-temperature alloy A286 self-locking fastener. Background Art

[0002] A286 has good high temperature resistance and corrosion resistance, and because it has good yield strength and processing plasticity when the temperature is less than 650℃, when manufacturing high temperature alloy A286 self-locking fasteners, it is processed and manufactured by cold extrusion. Cold extrusion forming technology is an advanced forming process technology with high efficiency, high precision, high quality and low consumption, and reduced cutting. It can improve the quality of forgings and improve the working environment.

[0003] In the prior art, during the cold extrusion process of the high-temperature alloy A286 self-locking fastener, a metal blank is placed in a cold extrusion die cavity, and pressure is applied to the blank through a punch fixed on a press at room temperature, so that the metal blank is plasticized and turned into a finished fastener.

[0004] In the prior art, during the manufacturing process of high-temperature alloy A286 self-locking fasteners, frequent cold pressing causes high wear on the cold extrusion cavity of the mold, which is prone to deformation and causes deviations in the produced fasteners. In addition to the cold extrusion cavity, the mold is made of heavier metal materials. It would be wasteful to replace the entire mold, and the cold extrusion cavity is not easy to repair. Summary of the invention

[0005] The purpose of the utility model is to provide a cold extrusion forming die for a high-temperature alloy A286 self-locking fastener, which can stably connect and limit, avoid shaking or offset during the cold pressing process, and facilitate disassembly and replacement, avoiding waste caused by overall replacement of the outer mold, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high temperature alloy A286 self-locking fastener cold extrusion forming die, comprising an outer die, the inner wall of the outer die is provided with a die groove, and the inner part of the die groove is provided with an inner die mechanism;

[0007] The inner mold mechanism includes an inner module, which penetrates into the interior of the mold groove, and the inner wall of the inner module is provided with a cold pressing cavity, a forming block is fixed to the bottom end of the inner module, and the bottom end of the forming block is connected to a connecting block, positioning blocks are fixed on both sides of the interior of the mold groove, and the inner wall of the positioning block is provided with a limiting groove, limiting plates are fixed at the positions corresponding to the limiting grooves on both sides of the forming block at the bottom end of the inner module, and bearing blocks are fixed at the positions of the two positioning blocks relative to the outer wall.

[0008] Preferably, the limiting plate and the inner module are perpendicular to each other, and a sliding structure is formed between the limiting plate and the limiting groove.

[0009] Preferably, a through groove is provided below the positioning blocks on both sides inside the mold groove, and a positioning mechanism is provided inside the through groove.

[0010] Preferably, the positioning mechanism comprises a sliding block, the sliding block is slidably connected inside the through-out slot, and one end of the sliding block that penetrates into the through-out slot is connected to a spring, and a support rod penetrates inside the spring.

[0011] Preferably, the positioning mechanism further comprises a positioning groove, the positioning groove is arranged below the outer wall of the limiting plate, and an electromagnet is embedded on one side of the inner part of the penetration groove.

[0012] Preferably, the sliding block forms a sliding structure between the spring and the penetration groove, and the spring and the support rod form a sliding structure.

[0013] Preferably, a fixing plate is installed at the bottom end of the bearing block, and an insertion groove is provided on the inner wall of the fixing plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The inner module, limit plate, forming block and connecting block are uniformly cast into an integrated structure, and the positioning block, limit groove and bearing block are used to stably connect and limit, avoiding shaking or offset during the cold pressing process. At the same time, it is convenient for disassembly and replacement, avoiding waste caused by overall replacement of the outer mold;

[0016] 2. The stability of the connection between the outer mold and the inner mold mechanism can be improved by cooperating with the penetration groove, the sliding block, the spring, the support rod and the positioning groove. The connection stability can be further improved by the fixing plate and the insertion groove. The sliding block can slide and move by opening and closing the electromagnet, so that the inner mold mechanism can be quickly disassembled and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the mold groove of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the limit plate of the utility model;

[0021] Figure 4 For the utility model Figure 2 A magnified view of middle;

[0022] Figure 5 It is a structural schematic diagram of the spring of the utility model.

[0023] Description of reference numerals:

[0024] 1. Outer mold; 2. Mold groove; 3. Inner mold mechanism; 301. Inner mold module; 302. Cold pressing cavity; 303. Limiting plate; 304. Positioning block; 305. Limiting groove; 306. Forming block; 307. Connecting block; 308. Bearing block; 4. Passing groove; 5. Positioning mechanism; 501. Sliding block; 502. Spring; 503. Support rod; 504. Positioning groove; 505. Electromagnet; 6. Fixed plate; 7. Insertion groove. DETAILED DESCRIPTION

[0025] 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.

[0026] The utility model provides a technical solution:

[0027] See also Figures 1 to 3 A cold extrusion forming die for a high-temperature alloy A286 self-locking fastener comprises an outer die 1, an inner wall of the outer die 1 is provided with a die groove 2, an inner die mechanism 3 is arranged inside the die groove 2; the inner die mechanism 3 comprises an inner module 301, the inner module 301 penetrates into the die groove 2, an inner wall of the inner module 301 is provided with a cold pressing cavity 302, a forming block 306 is fixed at the bottom end of the inner module 301, a connecting block 307 is connected to the bottom end of the forming block 306, positioning blocks 304 are fixed on both sides of the die groove 2, limiting grooves 305 are provided on the inner wall of the positioning block 304, limiting plates 303 are fixed at the positions corresponding to the limiting grooves 305 on both sides of the forming block 306 at the bottom of the inner module 301, bearing blocks 308 are fixed at the positions of the two positioning blocks 304 relative to the outer wall, the limiting plates 303 and the inner module 301 are perpendicular to each other, and a sliding structure is formed between the limiting plates 303 and the limiting grooves 305.

[0028] By adopting the above technical solution, first, the inner module 301 enters the mold groove 2, and the limiting plate 303 is inserted into the positioning block 304 through the limiting groove 305 for preliminary positioning to avoid displacement or shaking during the cold pressing process. The connecting block 307 is limited by the supporting block 308 to further improve stability, and the supporting molding block 306 is used to improve the bearing capacity and the pressure borne during the cold pressing process. The cold pressing cavity 302 opened by the inner module 301 and the molding block 306 is a mold cavity for cold pressing molding. When the cold pressing cavity 302 is deformed and worn, or the inner mold mechanism 3 needs to be replaced, the outer mold 1 is directly flipped over for quick disassembly and replacement.

[0029] Specifically, Figures 2 to 5 As shown, a through groove 4 is provided below the positioning blocks 304 on both sides inside the mold groove 2, and a positioning mechanism 5 is provided inside the through groove 4. The positioning mechanism 5 includes a sliding block 501, and the sliding block 501 is slidably connected inside the through groove 4. One end of the sliding block 501 that penetrates into the through groove 4 is connected to a spring 502, and a support rod 503 is penetrated from the inside of the spring 502. The positioning mechanism 5 also includes a positioning groove 504, and the positioning groove 504 is provided below the outer wall of the limit plate 303, and an electromagnet 505 is embedded on one side of the inner part of the through groove 4. The sliding block 501 forms a sliding structure with the through groove 4 through the spring 502, and a sliding structure is formed between the spring 502 and the support rod 503. A fixing plate 6 is installed at the bottom end of the load-bearing block 308, and an insertion groove 7 is provided on the inner wall of the fixing plate 6.

[0030] By adopting the above technical scheme, when the limit plate 303 passes through the limit groove 305, the bottom end abuts against the sliding block 501. The sliding block 501 with the inclined structure can slide inward along the groove 4 and compress the spring 502 during the abutment. The spring 502 slides through the support rod 503 to avoid bending and deviation. When the limit plate 303 slides in contact with the sliding block 501 until it reaches the positioning groove 504 to allow the sliding block 501 to pass through, the stability of the connection between the inner mold mechanism 3 and the outer mold 1 is improved. After the sliding block 501 passes through the positioning groove 504, it continues to slide until it enters the fixed plate 6 through the insertion groove 7, further improving the stability of the connection. When disassembly and assembly is required, the sliding block 501 is magnetically adsorbed by the electromagnet 505, and is separated from the positioning groove 504 and the insertion groove 7 to enter the groove 4, thereby facilitating the rapid disassembly and assembly of the inner mold mechanism 3.

[0031] Working principle: the inner mold block 301, the limiting plate 303, the forming block 306 and the connecting block 307 are cast uniformly and penetrate into the mold groove 2 of the outer mold 1. The limiting plate 303 penetrates into the limiting groove 305 opened by the positioning block 304 for preliminary support and limiting, and supports the forming block 306 through two bearing blocks 308, and at the same time fits the connecting block 307 for limiting, so that when the cold pressing cavity 302 is worn or the inner mold mechanism 3 needs to be replaced, the outer mold 1 is directly reversed for disassembly and replacement. When the limiting plate 303 penetrates out of the limiting groove 305, it abuts against the inclined block of the sliding block 501. Thereby, the sliding block 501 slides along the outlet groove 4, compressing the spring 502 and allowing the support rod 503 to penetrate the sliding block 501 until the sliding block 501 reaches the position of the positioning groove 504 and penetrates the limit plate 303, thereby improving the connection stability of the inner mold mechanism 3. At the same time, the sliding block 501 continues to slide and penetrates the insertion groove 7 of the fixed plate 6 to support the sliding block 501 to prevent loosening or deviation. When disassembling and assembling, the sliding block 501 made of permanent magnetic material is magnetically adsorbed by the electromagnet 505 to allow the sliding block 501 to be separated from the positioning groove 504, thereby facilitating the disassembly and assembly of the inner mold mechanism 3.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A cold extrusion forming die for a high temperature alloy A286 self-locking fastener, comprising an outer die (1), characterized in that: The inner wall of the outer mold (1) is provided with a mold groove (2), and an inner mold mechanism (3) is arranged inside the mold groove (2); The inner mold mechanism (3) comprises an inner mold block (301), the inner mold block (301) penetrates into the mold cavity (2), and the inner wall of the inner mold block (301) is provided with a cold pressing cavity (302), a molding block (306) is fixed at the bottom end of the inner mold block (301), and the bottom end of the molding block (306) is connected to a connecting block (307), positioning blocks (304) are fixed at both sides of the mold cavity (2), and the inner wall of the positioning block (304) is provided with a limiting groove (305), limiting plates (303) are fixed at the positions corresponding to the limiting grooves (305) on both sides of the molding block (306) at the bottom end of the inner mold block (301), and bearing blocks (308) are fixed at the positions of the two positioning blocks (304) relative to the outer wall.

2. The cold extrusion forming die for a high temperature alloy A286 self-locking fastener according to claim 1, characterized in that: The limiting plate (303) and the inner module (301) are perpendicular to each other, and a sliding structure is formed between the limiting plate (303) and the limiting groove (305).

3. The cold extrusion forming die for the high temperature alloy A286 self-locking fastener according to claim 1, characterized in that: A pass-through groove (4) is provided below the positioning blocks (304) on both sides of the mold groove (2), and a positioning mechanism (5) is provided inside the pass-through groove (4).

4. The cold extrusion forming die for the high temperature alloy A286 self-locking fastener according to claim 3, characterized in that: The positioning mechanism (5) comprises a sliding block (501), the sliding block (501) being slidably connected to the inside of the outlet slot (4), and one end of the sliding block (501) that penetrates into the outlet slot (4) is connected to a spring (502), and a support rod (503) is inserted into the inside of the spring (502).

5. The cold extrusion forming die for the high temperature alloy A286 self-locking fastener according to claim 3, characterized in that: The positioning mechanism (5) further comprises a positioning groove (504), wherein the positioning groove (504) is provided below the outer wall of the limiting plate (303), and an electromagnet (505) is embedded on one side of the inner portion of the penetration groove (4).

6. The cold extrusion forming die for the high temperature alloy A286 self-locking fastener according to claim 4, characterized in that: The sliding block (501) forms a sliding structure between the spring (502) and the penetration groove (4), and the spring (502) and the support rod (503) form a sliding structure.

7. The cold extrusion forming die for the high temperature alloy A286 self-locking fastener according to claim 1, characterized in that: A fixing plate (6) is installed at the bottom end of the bearing block (308), and an insertion groove (7) is provided on the inner wall of the fixing plate (6).

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