Multi-process precision stamping die for special-shaped curved surface metal loudspeaker

Abstract

The utility model relates to a special-shaped curved surface metal loudspeaker multi-process precision stamping die which comprises an upper die base and a lower die base, a plurality of guide columns are arranged on the upper die base, guide column sleeves for containing the guide columns are arranged on the lower die base, the guide columns correspond to the guide column sleeves one to one, an upper fixing plate is arranged on the face, close to the lower die base, of the upper die base, and a lower fixing plate is arranged on the face, close to the lower die base, of the lower die base. A female die plate is arranged on the face, close to the lower die base, of the upper fixing plate, a lower fixing plate is arranged on the face, close to the upper die base, of the lower die base, a sub-die plate is arranged on the face, close to the female die plate, of the lower fixing plate, a female die core is arranged in the female die plate and protrudes out of the surface of the female die plate, a sub-die core is arranged in the sub-die plate, and a stamping piece is arranged between the female die core and the sub-die core. A plurality of cylindrical blocks are arranged on the upper fixing plate, and abutting blocks are arranged at the ends, away from the upper fixing plate, of the cylindrical blocks, penetrate through the female mold core and are located at the end, close to the sub mold core, of the female mold core. The loudspeaker die has the advantages that the stamping piece is not prone to rebounding after the die is stamped and demolded, and the production efficiency of the loudspeaker is improved.

Description

Technical Field

[0001] This application relates to the field of loudspeaker mold technology, and in particular to a multi-process precision stamping mold for irregular curved metal loudspeakers. Background Technology

[0002] A loudspeaker, commonly known as a "horn," is a very common electroacoustic transducer that can be found in any sound-producing electronic or electrical device. Loudspeaker molds are an essential design and production step in the manufacturing of loudspeakers.

[0003] Common metal speaker stamping dies involve placing a stamping sheet inside the die and forming the shape of the metal speaker through pressing. Metal speakers often have a curved shape. However, when the stamping sheet is removed after the pressing process, it is prone to springback, resulting in a significant change from the actual stamped structural dimensions. This leads to large errors and affects speaker production efficiency. Utility Model Content

[0004] In order to prevent the stamped sheet from springing back after stamping and to improve the production efficiency of loudspeakers, this application provides a multi-process precision stamping die for irregular curved metal loudspeakers.

[0005] This application provides a multi-process precision stamping die for an irregularly shaped curved metal loudspeaker, employing the following technical solution:

[0006] A multi-process precision stamping die for an irregularly shaped curved metal loudspeaker includes an upper die base and a lower die base. The lower die base is located below the upper die base. The upper die base has a plurality of guide pillars, and the lower die base has guide pillar sleeves for accommodating the guide pillars. Each guide pillar and guide pillar sleeve is arranged in a one-to-one correspondence. An upper fixing plate is provided on the side of the upper die base near the lower die base. A mother template is provided on the side of the upper fixing plate near the lower die base. A lower fixing plate is provided on the side of the lower die base near the upper die base, and a child template is provided on the side of the lower fixing plate near the mother template. The mother mold plate contains a mother mold core that protrudes from the surface of the mother mold plate. The daughter mold plate contains a daughter mold core, and the daughter mold core and the surface of the daughter mold plate near the mother mold core form a groove. When the upper mold base and the lower mold base are closed, the mother mold core is located in the groove. A stamping piece is provided between the mother mold core and the daughter mold core. Several cylindrical blocks are provided on the upper fixed plate. The cylindrical blocks pass through the upper fixed plate. A clamping block is provided at the end of the cylindrical block away from the upper fixed plate. The clamping block passes through the mother mold core and is located at the end of the mother mold core near the daughter mold core.

[0007] By adopting the above technical solution, when the upper mold base and the lower mold base need to be closed, the guide pillars and guide pillar sleeves ensure accurate positioning during mold closing. The female mold core is set inside the female mold plate, and the male mold core is set inside the male mold core. The stamping sheet is located between the female mold core and the male mold core. During mold closing, the female mold core squeezes the stamping sheet and limits the stamping sheet to the male mold core. Several cylindrical blocks are set inside the female mold core. A clamping block is set at the end of the cylindrical block away from the upper fixed plate. The clamping block fully abuts against the stamping sheet, making it difficult for the stamping sheet to spring back after forming and ensuring uniform extrusion contact area. The stamping sheet is not easy to spring back after mold stamping, thus improving the production efficiency of the speaker.

[0008] Optionally, the sub-template is provided with a plurality of limiting blocks, the limiting blocks being arranged circumferentially along the edge of the sub-mold core, and the mother mold core is provided with limiting grooves for the limiting blocks to be accommodated.

[0009] By adopting the above technical solution, the limiting block limits the stamping piece when the upper mold base and the lower mold base are closed, and the stamping shape is not easily changed.

[0010] Optionally, a fixing plate is provided on the outer surface of the sub-mold core near the mother mold core, and the fixing plate has several through holes for the stamping plate to be hollowed out.

[0011] By adopting the above technical solution, when the stamping sheet is squeezed into the sub-mold core during mold closing, the fixed piece can easily form the hollow shape of the speaker.

[0012] Optionally, the lower mold base includes a base and a connecting block. The connecting block is disposed on the lower fixed plate, and the base is disposed on the side of the connecting block away from the lower fixed plate. The guide post sleeve is disposed on the connecting block, and a fixing block is disposed on the side of the base near the connecting block. A limit plate is fixed to the end of the fixing block, and a fixing post is disposed on the limit plate. The fixing post passes through the connecting block, the lower fixed plate, and the sub-mold plate, and the end of the fixing post away from the limit plate is disposed on the sub-mold core.

[0013] By adopting the above technical solution, the fixing block is set on the base, the limiting plate is set on the fixing block, and the fixing column set on the limiting plate is set on the sub-mold core. The fixing column provides further support for the sub-mold core, and the sub-mold core has double support.

[0014] Optionally, a snap-fit ​​block is provided at the end of the fixing block away from the base, the limiting plate is snapped onto the snap-fit ​​block, and bolts are threaded to the four corners of the limiting plate, and the limiting plate is fixed to the connecting block by the threads.

[0015] By adopting the above technical solution, the limiting block is snapped onto the snap-fit ​​block, which is simple to install. At the same time, the limiting plate is fixed to the connecting block by bolts.

[0016] Optionally, the upper fixing plate is provided with a plurality of positioning posts, and the sub-template is provided with connecting holes for the positioning posts to pass through, the connecting holes passing through the female mold core and the lower fixing plate.

[0017] By adopting the above technical solutions, the positioning pins and connecting holes further improve the stability during mold closing.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The stamping sheet is located between the female mold core and the male mold core. When the mold is closed, the clamping block fully abuts against the stamping sheet and confines the stamping sheet within the male mold core, so that the stamping sheet is not easy to spring back after forming and the extrusion contact area is uniform, making it easy for the stamping sheet to form a curved surface. The stamping sheet is not easy to spring back after the mold is stamped, thus improving the production efficiency of the speaker.

[0020] 2. The limiting block prevents the stamping shape from easily changing when the stamping sheet is closed;

[0021] 3. The fixed column provides further support for the sub-mold core, and the fixed column also provides support for the sub-mold core while the connecting block provides support. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of the multi-process precision stamping die for an irregularly shaped curved metal loudspeaker, as described in the embodiment.

[0023] Figure 2 This is a schematic diagram of the upper mold base in an embodiment.

[0024] Figure 3 This is a schematic diagram of the lower mold base in an embodiment.

[0025] Figure 4 This is a cross-sectional schematic diagram of the lower mold base in an embodiment.

[0026] Figure 5 This is a schematic diagram of the abutment block in an embodiment.

[0027] Explanation of reference numerals in the attached drawings: 1. Upper mold base; 2. Lower mold base; 21. Base; 22. Connecting block; 31. Guide post; 32. Guide post sleeve; 33. Upper fixing plate; 34. Female mold plate; 35. Female mold core; 41. Lower fixing plate; 42. Sub-mold plate; 43. Sub-mold core; 44. Cylindrical block; 45. Clamping block; 51. Limiting block; 52. Limiting groove; 53. Through hole; 61. Fixing piece; 62. Fixing block; 63. Limiting plate; 64. Fixing post; 71. Snap-fit ​​block; 81. Positioning post; 82. Connecting hole. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] This application discloses a multi-process precision stamping die for an irregularly shaped curved metal loudspeaker. (Refer to...) Figure 1 , Figure 2 , Figure 3 The multi-process precision stamping die for irregularly shaped curved metal speakers includes an upper die base 1 and a lower die base 2, with the lower die base 2 located below the upper die base 1. Several guide pillars 31 are fixed on the upper die base 1, and guide pillar sleeves 32 for accommodating the guide pillars 31 are fixed on the lower die base 2. The guide pillars 31 and guide pillar sleeves 32 are arranged in a one-to-one correspondence. An upper fixing plate 33 is fixed to the side of the upper die base 1 closest to the lower die base 2, and a mother template 34 is fixed to the side of the upper fixing plate 33 closest to the lower die base 2. A lower fixing plate 41 is fixed to the side of the lower die base 2 closest to the upper die base 1, and a sub-template 42 is fixed to the side of the lower fixing plate 41 closest to the mother template 34.

[0030] Reference Figure 3 , Figure 4 The lower mold base 2 includes a base 21 and a connecting block 22. The connecting block 22 is fixed to the lower fixed plate 41, and the base 21 is fixed to the side of the connecting block 22 away from the lower fixed plate 41. The guide post sleeve 32 is fixed to the connecting block 22. A fixing block 62 is fixed to the side of the base 21 near the connecting block 22, and a limit plate 63 is fixed to the end of the fixing block 62. A fixing post 64 is fixed to the limit plate 63, passing through the connecting block 22, the lower fixed plate 41, and the sub-mold plate 42. The end of the fixing post 64 away from the limit plate 63 is fixed to the sub-mold core 43. A snap-fit ​​block 71 is fixed to the end of the fixing block 62 away from the base 21, and the limit plate 63 snaps onto the snap-fit ​​block 71. Bolts are threaded onto the four corners of the limit plate 63, and the limit plate 63 is fixed to the connecting block 22 by threads.

[0031] Reference Figure 1 , Figure 2 , Figure 3 Several limiting blocks 51 are fixed on the sub-template 42. The limiting blocks 51 are arranged circumferentially along the edge of the sub-mold core 43. The mother mold core 35 is provided with limiting grooves 52 for the limiting blocks 51 to be accommodated. Except for the upper mold base 1 and the lower mold base 2, all other components are provided with two, so that two can be stamped at one time when the mold is closed, thus improving the stamping efficiency.

[0032] Reference Figure 2 , Figure 3 , Figure 5A female mold core 35 is fixed inside the female mold template 34, protruding from the surface of the female mold template 34. A male mold core 43 is fixed inside the male mold template 42, and a groove is formed between the male mold core 43 and the surface of the male mold template 42 near the female mold core 35. A fixing piece 61 is fixed to the outer surface of the male mold core 43 near the female mold core 35, and the fixing piece 61 has several through holes 53 for the blanking of the stamping piece. When the upper mold base 1 and the lower mold base 2 are closed, the female mold core 35 is located in the groove, and a stamping piece is placed between the female mold core 35 and the male mold core 43. Several cylindrical blocks 44 are fixed on the upper fixing plate 33, and the cylindrical blocks 44 pass through the upper fixing plate 33. A clamping block 45 is fixed to the end of the cylindrical block 44 away from the upper fixing plate 33, and the clamping block 45 passes through the female mold core 35 and is located at the end of the female mold core 35 near the male mold core 43.

[0033] Reference Figure 2 , Figure 3 The upper fixing plate 33 is provided with a number of positioning posts 81, and the sub-template 42 is provided with connecting holes 82 for the positioning posts 81 to pass through. The connecting holes 82 pass through the female mold core 35 and the lower fixing plate 41.

[0034] The implementation principle of a multi-process precision stamping die for an irregular curved metal loudspeaker according to an embodiment of this application is as follows: When the loudspeaker needs to be stamped, the stamping sheet is placed between the female mold core 35 and the male mold core 43. When the mold needs to be closed, the upper mold base 1 moves downward, so that the female mold core 35 squeezes the stamping sheet and limits the stamping sheet to the male mold core 43. The clamping block 45 fully abuts against the stamping sheet, so that the stamping is evenly stressed when the stamping sheet is in the male mold core 43. At the same time, the stamping sheet is placed by the limiting block 51 to offset or detach from the male mold core 43. The fixing column 64 further provides support for the male mold core 43, so that the male mold core 43 has double support, improving the stability of the male mold core 43 on the lower mold base 2. After the mold is stamped and demolded, the stamping sheet is not easy to spring back, and the loudspeaker production efficiency is improved.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-process precision stamping die for a special-shaped curved metal loudspeaker, comprising an upper die seat (1) and a lower die seat (2), characterized in that: The lower die seat (2) is located below the upper die seat (1), a plurality of guide columns (31) are arranged on the upper die seat (1), guide sleeve (32) for accommodating the guide column (31) is arranged on the lower die seat (2), the guide column (31) and the guide sleeve (32) are arranged one by one, the upper die seat (1) is provided with an upper fixed plate (33) on the side close to the lower die seat (2), the upper fixed plate (33) is provided with a female die plate (34) on the side close to the lower die seat (2), the lower die seat (2) is provided with a lower fixed plate (41) on the side close to the upper die seat (1), the lower fixed plate (41) is provided with a male die plate (42) on the side close to the female die plate (34), the female die plate (34) is provided with a female die core (35), the female die core (35) protrudes from the surface of the female die plate (34), the male die plate (42) is provided with a male die core (43), the male die core (43) is provided with a groove on the surface close to the female die core (35), the female die core (35) is located in the groove when the upper die seat (1) and the lower die seat (2) are closed, a stamping piece is arranged between the female die core (35) and the male die core (43), a plurality of cylindrical blocks (44) are arranged on the upper fixed plate (33), the cylindrical blocks (44) pass through the upper fixed plate (33), the end of the cylindrical blocks (44) away from the upper fixed plate (33) is provided with a abutting block (45), the abutting block (45) passes through the female die core (35) and is located at the end of the female die core (35) close to the male die core (43).

2. The multi-process precision stamping die for the special-shaped curved metal loudspeaker of claim 1, characterized in that: A plurality of limiting blocks (51) are arranged on the male die plate (42), the limiting blocks (51) are arranged circumferentially along the edge of the male die core (43), the female die core (35) is provided with a limiting groove (52) for accommodating the limiting block (51).

3. The multi-process precision stamping die for the special-shaped curved metal loudspeaker of claim 1, characterized in that: The outer surface of the male die core (43) close to the female die core (35) is provided with a fixing piece (61), a plurality of through holes (53) are arranged on the fixing piece (61), the through holes (53) are used for hollow forming of the stamping piece.

4. The multi-process precision stamping die for the special-shaped curved metal loudspeaker of claim 1, wherein: The lower die seat (2) comprises a base (21) and a connecting block (22), the connecting block (22) is arranged on the lower fixed plate (41), the base (21) is arranged on the side of the connecting block (22) away from the lower fixed plate (41), the guide sleeve (32) is arranged on the connecting block (22), the base (21) is provided with a fixed block (62) on the side close to the connecting block (22), the end of the fixed block (62) is fixedly connected with a limiting plate (63), the limiting plate (63) is provided with a fixed column (64), the fixed column (64) passes through the connecting block (22), the lower fixed plate (41) and the male die plate (42), the end of the fixed column (64) away from the limiting plate (63) is arranged on the male die core (43).

5. The multi-process precision stamping die for the special-shaped curved metal loudspeaker of claim 4, characterized in that: The end of the fixed block (62) away from the base (21) is provided with a clamping block (71), the limiting plate (63) is clamped on the clamping block (71), the limiting plate (63) is screw connected with a bolt at the four corners, and the limiting plate (63) is fixed with the connecting block (22) through screw threads.

6. The multi-process precision stamping die for the special-shaped curved metal loudspeaker of claim 1, wherein: The upper fixed plate (33) is provided with a plurality of positioning columns (81), the sub-mold plate (42) is provided with connecting holes (82) for the positioning columns (81) to pass through, and the connecting holes (82) pass through the female mold core (35) and the lower fixed plate (41).

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