Tungsten steel pressing die head with coating

Abstract

The utility model discloses a tungsten steel pressing die head with a coating, which comprises a pressing die head body, the top of the pressing die head body is provided with a pressing die assembly for stabilizing a pressure die material, and the outer sides of the pressing die head body and the pressing die assembly are provided with protective coatings for enhancing durability. A third protective layer in the protective coating is coated on the outer sides of the pressing die head body and the pressing die assembly, and a second protective layer is also coated on the outer side of the third protective layer; through the arrangement of the protective coating, the tungsten steel pressing die head is protected by coating the protective coating on the surface of the tungsten steel pressing die head, so that the tungsten steel pressing die head has the advantages that the service life of the tungsten steel pressing die head is prolonged, and the wear resistance of the tungsten steel pressing die head is improved; the mold head has the advantages of improving the required wear resistance, corrosion resistance and the like by utilizing the matching of three-stage coating protection of the first protection layer, the second protection layer and the third protection layer in the protection coating, so that the mold head is prevented from being directly scrapped due to long-time use, and the service life of the mold head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of die pressing, in particular to a tungsten steel pressing die head with a coating. Background Art

[0002] ‌Tungsten steel die heads are mainly used in the field of stamping dies to meet different processing requirements in processes such as forming, stretching, drawing, and cutting, showing extremely high versatility and adaptability;

[0003] The existing technology has the following problems: 1) The appearance of the tin is relatively uneven on all four sides, and sometimes there is tin deficiency in the corners. When the machine is performing chip welding, the tinning rate is difficult to reach 100%, and the difference in tin thickness is also relatively large, which increases the risk of failure and affects the reliability of the product; 2) The appearance of the tin molding is always unsatisfactory. When it exceeds the specification requirements, it needs to be debugged, which reduces production efficiency; 3) The existing die head only has a venting groove on the four edges, which is easy to cause the venting groove to be blocked by tin during the tin pressing process, which is not easy to clean and shortens the service life of the die head.

[0004] In view of the above technical problems, a modified die head for a semiconductor chip mounter is disclosed in the announcement number CN214898352U. The die head is provided with exhaust grooves connected to each other on all sides, and a cross cut groove connected to the exhaust groove is added in the center of the exhaust groove. This can not only ensure the uniformity of tin pressing, but also effectively avoid tin blocking of the die head, thereby extending the service life of the die head and improving the stability of the overall electronic product.

[0005] The above patent also has the following shortcomings: since the tungsten steel die head works at a high frequency during actual use, and the processing efficiency and speed are high, the die head will be worn, resulting in reduced precision of the die and unusability. Utility Model Content

[0006] The purpose of the utility model is to provide a tungsten steel die head with a coating, which has the advantage of protecting the die head, thereby preventing the die head from being damaged during high-frequency processing operations, so as to improve the protection effect of the die head and the stability and precision of the die during long-term use, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: a coated tungsten steel die head, comprising a die head body:

[0008] A die assembly for stabilizing the die material is disposed on the top of the die head body, and a protective coating for enhancing durability is disposed on the outer sides of the die head body and the die assembly;

[0009] The third protective layer in the protective coating is coated on the outside of the die head body and the die assembly, the outside of the third protective layer is also coated with the second protective layer, and the outside of the second protective layer is also coated with the first protective layer;

[0010] The metal coating in the third protective layer is coated on the outside of the die head body and the die assembly, and the outside of the metal coating is coated with a ceramic coating.

[0011] Preferably, the oxide coating in the second protective layer is coated on the outside of the ceramic coating, and the outside of the oxide coating is coated with a carbide coating.

[0012] Preferably, the nitride coating in the first protective layer is coated on the outside of the carbide coating, and the outside of the nitride coating is coated with a cemented carbide coating.

[0013] Preferably, the central pressing platform in the die assembly is integrally formed at the center of the top of the die head body, and an oblique groove is also provided on the top of the central pressing platform.

[0014] Preferably, an anti-overflow groove is also provided on the top of the die head body, and the anti-overflow groove is located between the inner side of the die head body and the outer side of the central pressing platform.

[0015] Preferably, a connecting assembly is provided at the bottom of the die head body, a supporting seat in the connecting assembly is integrally formed at the bottom of the die head body, and an adapting groove is provided at the bottom of the supporting seat.

[0016] Preferably, the adapting groove is opened in an arc shape, and the outer side of the supporting seat is stacked to open a limiting groove.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model protects the tungsten steel die head by setting a protective coating and coating the protective coating on the surface of the tungsten steel die head, thereby achieving the advantages of increasing the service life and wear resistance of the tungsten steel die head. The three-level coating protection of the first protective layer, the second protective layer and the third protective layer in the protective coating is used to improve the required wear resistance and corrosion resistance, avoid direct scrapping of the die head due to long-term use, and increase the service life of the die head.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the limit groove structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the protective coating structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the cemented carbide coating of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the carbide coating of the utility model;

[0025] Figure 6 This is a schematic diagram of the ceramic coating structure of the utility model.

[0026] In the figure: 1. die head body; 2. die assembly; 21. anti-overflow groove; 22. center press platform; 23. oblique groove; 3. connection assembly; 31. support seat; 32. adapter groove; 33. limit groove; 4. protective coating; 41. first protective layer; 411. cemented carbide coating; 412. nitride coating; 42. second protective layer; 421. carbide coating; 422. oxide coating; 43. third protective layer; 431. ceramic coating; 432. metal coating. DETAILED DESCRIPTION

[0027] 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.

[0028] The utility model provides a tungsten steel die head with a coating, comprising a die head body 1:

[0029] A die assembly 2 for stabilizing the die material is disposed on the top of the die head body 1, and a protective coating 4 for enhancing durability is disposed on the outer sides of the die head body 1 and the die assembly 2;

[0030] The third protective layer 43 in the protective coating 4 is coated on the outside of the die head body 1 and the die assembly 2, the outside of the third protective layer 43 is also coated with the second protective layer 42, and the outside of the second protective layer 42 is also coated with the first protective layer 41;

[0031] The metal coating 432 in the third protective layer 43 is coated on the outside of the die head body 1 and the die assembly 2 , and the outside of the metal coating 432 is coated with a ceramic coating 431 .

[0032] The die head body 1 can be protected to avoid direct damage to the die head, ensuring that the die head can be used continuously by re-coating the coating, avoiding the die head being directly scrapped and unusable after being damaged, and ensuring the accuracy during continuous use.

[0033] Preferred:

[0034] like Figure 5 As shown, the oxide coating 422 in the second protective layer 42 is coated on the outside of the ceramic coating 431, and the outside of the oxide coating 422 is coated with a carbide coating 421, which is beneficial to improving the corrosion resistance and wear resistance of the die head.

[0035] like Figure 6 As shown, the nitride coating 412 in the first protective layer 41 is coated on the outside of the carbide coating 421, and the outside of the nitride coating 412 is coated with a cemented carbide coating 411, which increases the wear resistance, corrosion resistance and heat resistance of the die head.

[0036] Cemented carbide coating 411, made of tungsten-cobalt alloy, has extremely high hardness and wear resistance, suitable for molds working at high speeds, and can effectively extend the service life of the mold;

[0037] Nitride coating 412 forms a nitride film on the mold surface to improve the mold's hardness and wear resistance, and also improve the mold's corrosion resistance.

[0038] Carbide coating ‌421, made of carbide material, has excellent wear resistance and corrosion resistance, suitable for various molds, not limited to the use of the above-mentioned mold heads;

[0039] The oxide coating 422 is made of an oxide material and has good wear resistance and corrosion resistance, and can increase the service life of the mold;

[0040] ‌ Ceramic coating 431, using ceramic particles as the main material, has the characteristics of heat resistance, wear resistance, corrosion resistance and insulation, is suitable for high-temperature casting molds, and can improve the scope of use;

[0041] Metal coating ‌432, with metal powder as the main material, has wear resistance and thermal conductivity, is suitable for casting molds, and can also form coatings with different effects by mixing different metal powders. It can be applied and used according to actual needs;

[0042] Based on the above, the method of coating the surface of the tungsten steel die head is adopted to protect the tungsten steel die head, thereby achieving the advantages of improving the service life and wear resistance of the tungsten steel die head. The coating can not only directly prevent the die head from being worn, but also directly prevent the phenomenon that the die head cannot be used due to damage caused by the technical giant.

[0043] The die head is protected from direct wear by the above-mentioned coating technology in advance. When the coating is damaged to the point where it needs to be processed, it can be cleaned directly, or directly covered and coated to form protection again, so that the die head can be used for a long time without being affected.

[0044] further

[0045] like Figure 2 As shown, the central pressing platform 22 in the die assembly 2 is integrally formed at the center of the top of the die head body 1, and an inclined groove 23 is also provided on the top of the central pressing platform 22 to facilitate stable die pressing operation.

[0046] like Figure 2 As shown, an anti-overflow groove 21 is also provided on the top of the die head body 1. The anti-overflow groove 21 is located between the inner side of the die head body 1 and the outer side of the central press platform 22, and can prevent material from overflowing, thereby improving the effect of the die pressing operation.

[0047] Going a step further

[0048] like Figure 2 As shown, a connecting assembly 3 is provided at the bottom of the die head body 1, and a support seat 31 in the connecting assembly 3 is integrally formed at the bottom of the die head body 1. An adapting groove 32 is provided at the bottom of the support seat 31, which plays a role of auxiliary support and limiting connection.

[0049] The adapting groove 32 is provided in an arc shape, and a limiting groove 33 is provided on the outer side of the supporting seat 31 .

[0050] It is beneficial to realize the connection by adopting the insertion-type limiting method during the connection, which ensures the stability during the installation and connection, thereby improving the stability during the disassembly and assembly.

[0051] Although 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

1. A coated tungsten steel die head, characterized in that: Comprising the die head body (1): A die assembly (2) for stabilizing the die material is arranged on the top of the die head body (1), and a protective coating (4) for enhancing durability is arranged on the outer sides of the die head body (1) and the die assembly (2); The third protective layer (43) in the protective coating (4) is coated on the outer sides of the die head body (1) and the die assembly (2), the outer side of the third protective layer (43) is also coated with the second protective layer (42), and the outer side of the second protective layer (42) is also coated with the first protective layer (41); The metal coating (432) in the third protective layer (43) is coated on the outside of the die head body (1) and the die assembly (2), and the outside of the metal coating (432) is coated with a ceramic coating (431).

2. The coated tungsten steel die head according to claim 1, characterized in that: The oxide coating (422) in the second protective layer (42) is coated on the outside of the ceramic coating (431), and the outside of the oxide coating (422) is coated with a carbide coating (421).

3. The coated tungsten steel die head according to claim 2, characterized in that: The nitride coating (412) in the first protective layer (41) is coated on the outside of the carbide coating (421), and the outside of the nitride coating (412) is coated with a cemented carbide coating (411).

4. The coated tungsten steel die head according to claim 1, characterized in that: The central pressing platform (22) in the pressing die assembly (2) is integrally formed at the center of the top of the pressing die head body (1), and an oblique groove (23) is also provided on the top of the central pressing platform (22).

5. The coated tungsten steel die head according to claim 4, characterized in that: An anti-overflow groove (21) is also provided on the top of the die head body (1), and the anti-overflow groove (21) is located between the inner side of the die head body (1) and the outer side of the central pressing platform (22).

6. The coated tungsten steel die head according to claim 1, characterized in that: A connecting assembly (3) is provided at the bottom of the die head body (1); a supporting seat (31) in the connecting assembly (3) is integrally formed at the bottom of the die head body (1); and an adapting groove (32) is provided at the bottom of the supporting seat (31).

7. The coated tungsten steel die head according to claim 6, characterized in that: The adapting groove (32) is opened in an arc shape, and a limiting groove (33) is opened on the outer side of the supporting seat (31).

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