Rapid forming die for metal mesh enclosure of automobile loudspeaker

Abstract

The invention relates to the technical field of forming dies, in particular to an automobile loudspeaker metal mesh enclosure rapid forming die which comprises a base, the base is fixedly connected with the bottom of a punch press, a lower bottom plate is fixedly installed on the top face of the base, and guide columns are symmetrically and fixedly installed on the top face of the lower bottom plate; the positioning part is fixedly mounted on the surface of the lower bottom plate, and the positioning part can position the mesh enclosure material plate; a middle bottom plate is fixedly mounted in the middles of the guide columns, and the forming part is mounted on the bottom surface of the middle bottom plate; an upper bottom plate is fixedly mounted at the tops of the guide columns, and the pressing part is mounted on the upper bottom plate and can drive the forming part to complete flanging and inner buckling procedures; the base plate is fixedly mounted on the top surface of the upper bottom plate, and the top surface of the base plate is fixedly connected with the top of the punch; the flanging and inner buckling processes of the material plate can be completed at the same time, the processes needed for forming are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of molding die technology, and specifically to a rapid prototyping die for a metal mesh cover for an automotive speaker. Background Technology

[0002] Car audio systems are an important part of modern car interior design and user experience. As an exposed component of the audio system, the speaker grille not only protects the internal speaker units from mechanical damage, dust, and liquid intrusion, but its exquisite shape and pattern are also key elements of car interior design, directly affecting the overall visual effect and sense of quality of the vehicle.

[0003] Currently, the main method for mass production of metal speaker grilles is to use stamping molds. This involves designing and manufacturing precise multi-station molds and using large punch presses to perform numerous processes such as etching, stretching, trimming, and flanging on the metal sheet, resulting in low production efficiency. Summary of the Invention

[0004] To address the aforementioned shortcomings in existing technologies, this invention provides a rapid prototyping mold for automotive speaker metal mesh covers, thereby solving the problems of numerous molding processes and low production efficiency in the manufacturing of existing metal speaker mesh covers.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rapid prototyping mold for a car speaker metal mesh cover includes a base, which is fixedly connected to the bottom of a punch press. A lower base plate is fixedly installed on the top surface of the base, and guide pillars are symmetrically fixedly installed on the top surface of the lower base plate. A positioning part is fixedly installed on the surface of the lower base plate and can position the mesh cover material. A forming part is fixedly installed on the bottom surface of the middle base plate of the guide pillars. A pressure applying part is fixedly installed on the top of the guide pillars and can drive the forming part to complete the flanging and inward buckling processes. A pad is fixedly installed on the top surface of the upper base plate and the top surface of the pad is fixedly connected to the top of the punch press.

[0006] In this way, when the metal speaker grille needs to be formed, the material plate of the grille is placed on the positioning part, the punch on the top surface of the pad is turned on, and pressure is applied to the pad. This causes the upper bottom plate and the pressure part to descend along the guide post, squeezing the middle bottom plate. With the positioning part limiting the material plate, the pressure part drives the forming part to complete the flanging and inward bending process of the material plate. With this structure, the flanging and inward bending processes of the material plate can be completed at the same time, reducing the number of forming steps and improving work efficiency.

[0007] Furthermore, the positioning part includes spring plungers evenly installed on the top surface of the lower base plate, a positioning plate is fixedly connected to the top surface of the spring plungers, a through groove is opened on the surface of the positioning plate, a support block is provided on the top surface of the lower base plate, the top of the support block passes through the through groove, and positioning blocks are provided on all four sides of the top surface of the positioning plate facing the support block.

[0008] In this way, before the press applies pressure, the spring plunger supports the positioning plate next to the top of the support block, and the positioning block forms a contour around the support block for placing the material plate. When the material plate is placed on the top surface of the support block, the positioning block can clamp and position the material plate. After the press is turned on and pressure is applied, the positioning plate is pushed down to squeeze the spring plunger. During the pressure application process, the positioning block maintains the clamping and limiting of the material plate. With this structure, the material plate can be clamped and limited, improving the stability of the material plate during the forming process.

[0009] Furthermore, the forming part includes a mounting plate fixedly installed on the bottom surface of the central base plate. The bottom surface of the mounting plate has a cross-shaped groove, the edge of the groove has symmetrical irregular grooves, and the bottom surface of the mounting plate has an X-shaped sliding groove. A first slider is slidably disposed in the groove, a second slider is slidably disposed in the slot, and a third slider is slidably disposed in the irregular groove. The surfaces of the first slider, the second slider, and the third slider are all provided with mounting grooves. Guide wheels are rotatably connected to each mounting groove. A fixing plate is fixedly installed on the bottom surface of the mounting plate.

[0010] In this way, before the press applies pressure, the material plate is placed in the largest contour formed by the first slider, the second slider, and the third slider. After the press is turned on and pressure is applied, the middle bottom plate is squeezed. The pressure unit drives the first slider and the second slider to move towards the inside of the middle bottom plate, and drives the third slider to move towards the outside of the middle bottom plate. The first slider and the second slider form a smaller forming contour, and the material plate is squeezed to complete the flanging and inward bending process. With this structure, the flanging and inward bending of the material plate can be completed in one process, reducing the number of forming processes and improving work efficiency.

[0011] Furthermore, the pressure-applying part includes a plurality of fixing blocks fixedly installed on the bottom surface of the upper base plate. The fixing blocks are arranged corresponding to the first slider, the second slider, and the third slider. A lifting plate is fixedly connected to the bottom surface of the fixing blocks. The lifting plate has a zigzag limiting groove on its side, and the guide wheel can slide along the limiting groove. The surface of the fixing plate has a lifting groove corresponding to the lifting plate, and the end of the lifting plate passes through the lifting groove.

[0012] In this way, when the first, second, and third sliders need to be moved, the punch press applies pressure to the upper base plate. The fixed block on the bottom surface of the upper base plate drives the lifting plate to descend along the lifting groove. The limiting groove of the lifting plate guides the guide wheel, which in turn moves the first, second, or third slider corresponding to the guide wheel. With this structure, the first, second, or third slider can be moved to achieve the flanging and inward turning processes of the material plate.

[0013] Furthermore, the lifting plates are arranged symmetrically in groups, and the shape and direction of the limiting groove corresponding to each group of lifting plates are opposite, thereby facilitating the displacement of the symmetrical lifting plates towards or away from each other.

[0014] Furthermore, the support block is divided into an inner slider, an outer slider, and an angle slider. A lifting cylinder is fixedly installed inside the base. A lifting plate is fixedly connected to the output end of the lifting cylinder. A lifting rod is fixedly installed on the top surface of the lifting plate corresponding to the outer slider and the angle slider. The inner slider is fixedly connected to the top surface of the lower base plate.

[0015] In this way, after the molding is completed, the lifting cylinder is activated, which drives the lifting plate to rise. The lifting rod pushes the outer slider and the corner slider to rise along the inclined surface of the inner slider, which in turn drives the material plate located on the top surface of the outer slider and the corner slider to rise together. With this structure, the top surfaces of the outer slider and the corner slider can form a smaller plane, making it easier for workers to remove the molded material plate.

[0016] Furthermore, the outer slider and the corner slider can slide along the groove on the surface of the inner slider, and the sliding angle of the outer slider and the corner slider relative to the inner slider is 10-20°. Therefore, the outer slider and the corner slider can be adapted to each other, reducing the possibility of interference between the outer slider and the corner slider.

[0017] Furthermore, buffer plungers are uniformly fixedly installed on the bottom surface of the upper base plate, which can buffer the pressure when the punch press applies pressure to the pressure part, thereby reducing the burden on the pad plate.

[0018] Furthermore, the extension and retraction length of the buffer plunger is consistent with the stroke of the limiting groove, thereby improving the accuracy and stability of the guide wheel's sliding stroke within the limiting groove.

[0019] Furthermore, the top surface of the positioning plate is provided with leveling supports at the four corners of the support block, and a leveling cylinder is fixedly installed on the top surface of the leveling support. The output end of the leveling cylinder is fixedly connected to a leveling block, thereby leveling the burrs on the surface of the material plate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a rapid prototyping mold for a car speaker metal mesh cover according to the present invention; Figure 2This is a front view structural schematic diagram of an embodiment of a rapid prototyping mold for a car speaker metal mesh cover according to the present invention; Figure 3 This is a cross-sectional view of an embodiment of a rapid prototyping mold for a metal mesh cover for an automotive speaker according to the present invention. Figure 4 This is a cross-sectional view of an embodiment of a rapid prototyping mold for a metal mesh cover for an automotive speaker according to the present invention. Figure 5 This is a three-dimensional structural diagram of the positioning part and related components in an embodiment of a rapid prototyping mold for a car speaker metal mesh cover according to the present invention; Figure 6 This is a cross-sectional view of the positioning part and related components in an embodiment of a rapid prototyping mold for a metal mesh cover for an automotive speaker according to the present invention. Figure 7 This is a three-dimensional structural diagram of the molding part and related components in an embodiment of a rapid prototyping mold for a car speaker metal mesh cover according to the present invention; Figure 8 This is a three-dimensional structural diagram of the molding part and related components in an embodiment of a rapid prototyping mold for a car speaker metal mesh cover according to the present invention (with the fixing plate removed). Figure 9 This is a schematic diagram of the movement direction of the first slider, the second slider, and the third slider in an embodiment of a rapid prototyping mold for a car speaker metal mesh cover according to the present invention (maximum contour shrinks to the forming contour). Reference numerals in the accompanying drawings: Base 1, lower base plate 101, guide post 102, middle base plate 103, upper base plate 104, buffer plunger 105, reinforcing plate 106; Positioning part 2, spring plunger 201, positioning plate 202, through groove 203, support block 204, positioning block 205, leveling support 206, leveling cylinder 207, leveling block 208; Molding part 3, mounting plate 301, groove 302, irregular groove 303, slide 304, first slider 305, second slider 306, third slider 307, mounting groove 308, guide wheel 309, fixing plate 310; Pressure application part 4, fixing block 401, lifting plate 402, limiting groove 403, lifting groove 404; Pad 5; Inner slider 601, outer slider 602, angle slider 603, lifting cylinder 604, lifting plate 605, lifting rod 606. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] Example: like Figures 1-9 As shown, a rapid prototyping mold for a car speaker metal mesh cover according to the present invention includes a base 1 fixedly connected to the bottom of a punch press and a pad 5 fixedly connected to the top of the punch press. A lower base plate 101 is fixedly installed on the top surface of the base 1, and an upper base plate 104 is fixedly installed on the bottom surface of the pad 5. Guide pillars 102 are symmetrically fixedly installed between the upper base plate 104 and the lower base plate 101. Buffer plungers 105 are uniformly fixedly installed on the bottom surface of the upper base plate 104. Reinforcing plates 106 are fixedly installed between the upper base plate 104 and the pad 5, and between the base 1 and the lower base plate 101.

[0024] A positioning part 2 is fixedly installed on the surface of the lower base plate 101, a middle base plate 103 is fixedly installed in the middle of the guide post 102, a forming part 3 is installed on the bottom surface of the middle base plate 103, and a pressure applying part 4 is installed on the upper base plate 104.

[0025] The positioning part 2 includes spring plungers 201 evenly installed on the top surface of the lower base plate 101. A positioning plate 202 is fixedly connected to the top surface of the spring plungers 201. A through groove 203 is opened on the surface of the positioning plate 202. A support block 204 is provided on the top surface of the lower base plate 101. The top of the support block 204 passes through the through groove 203. Positioning blocks 205 are provided on all four sides of the top surface of the positioning plate 202 facing the support block 204. The support block 204 is divided into an inner slider 601, an outer slider 602, and an angle slider 603. A lifting cylinder 604 is fixedly installed inside the base 1. A lifting plate 605 is fixedly connected to the output end of the lifting cylinder 604. A lifting rod 606 is fixedly installed on the top surface of the lifting plate 605 corresponding to the outer slider 602 and the angle slider 603. The inner slider 601 is fixedly connected to the top surface of the lower base plate 101. The outer slider 602 and the angle slider 603 can slide along the groove on the surface of the inner slider 601. The sliding angle of the outer slider 602 and the angle slider 603 relative to the inner slider 601 is 10-20°. Specifically, the inclined outer slider 602 and the angle slider 603 slide along the groove on the surface of the inner slider 601 to form a smaller plane, reducing the possibility of interference with the formed material plate. It is not necessary to sacrifice the filling degree of the inner surface of the material plate at the bend in order to remove the material plate, thus ensuring the processing quality of the material plate. When the sliding angles of the outer slider 602 and the corner slider 603 relative to the inner slider 601 are 15.7° and 8° respectively, the outer slider 602 and the corner slider 603 slide more smoothly, and the resulting plane makes it easier for workers to remove the material plate. The top surface of the positioning plate 202 is directly opposite the four corners of the support block 204 and a leveling support 206 is provided. A leveling cylinder 207 is fixedly installed on the top surface of the leveling support 206, and a leveling block 208 is fixedly connected to the output end of the leveling cylinder 207.

[0026] The molding part 3 includes a mounting plate 301 fixedly installed on the bottom surface of the central base plate 103. The bottom surface of the mounting plate 301 has a cross-shaped groove 302, and the edge of the groove 302 has symmetrical irregular grooves 303. The bottom surface of the mounting plate 301 has an X-shaped sliding groove 304. Specifically, the groove 302, the irregular groove 303 and the sliding groove 304 are in the shape of a cross. A first slider 305 is slidably disposed in the groove 302, a second slider 306 is slidably disposed in the groove 304, and a third slider 307 is slidably disposed in the irregular groove 303. The surfaces of the first slider 305, the second slider 306, and the third slider 307 are all provided with mounting grooves 308. Guide wheels 309 are rotatably connected in the mounting grooves 308. A fixing plate 310 is fixedly mounted on the bottom surface of the mounting plate 301.

[0027] The pressure application part 4 includes a plurality of fixing blocks 401 fixedly installed on the bottom surface of the upper base plate 104. The fixing blocks 401 are provided corresponding to the first slider 305, the second slider 306 and the third slider 307. The bottom surface of the fixing blocks 401 is fixedly connected to the lifting plate 402. The lifting plate 402 has a zigzag limiting groove 403 on its side. Specifically, the limiting groove 403 is divided into three parts: an upper vertical groove, a lower vertical groove, and an inclined groove connected in the middle on the side of the lifting plate 402. The guide wheel 309 can slide along the limiting groove 403. The surface of the fixing plate 310 has a lifting groove 404 corresponding to the lifting plate 402. The end of the lifting plate 402 passes through the lifting groove 404. The lifting plates 402 are arranged in symmetrical groups. The shape and direction of the limiting groove 403 corresponding to each group of lifting plates 402 are opposite. The stroke of the limiting groove 403 is consistent with the extension length of the buffer plunger 105.

[0028] The operating procedure for forming the metal mesh cover for car speakers is as follows: 1. Place the material plate for making the metal mesh cover on the top surface of the inner slider 601. At this time, the positioning block 205 limits the material plate. 2. Start the punch press and apply pressure to the pad 5 to squeeze the upper bottom plate 104. The mounting plate 301 contacts the material plate. At this time, the first slider 305, the second slider 306 and the third slider 307 are at the maximum contour. 3. After the upper base plate 104 is pressed down, it squeezes the buffer plunger 105. The maximum contour formed by the first slider 305, the second slider 306 and the third slider 307 squeezes the material plate to complete the flanging of the material plate. 4. The upper base plate 104 continues to descend. After descending a certain height, the guide wheel 309 enters the upper vertical groove from the lower vertical groove of the limiting groove 403 through the middle inclined groove, respectively driving the first slider 305 and the second slider 306 to move towards the inside of the mounting plate 301, and the third slider 307 to move towards the outside of the mounting plate 301. The first slider and the second slider form a smaller forming contour extrusion plate, completing the inward buckling of the plate. 5. After the guide wheel 309 has completed the travel limited by the limit groove 403, the material plate and the mounting plate 301 come into contact. The punch press is restarted to release the pressure on the upper base plate 104, and the upper base plate 104 begins to rise. 6. After the upper base plate 104 rises to a certain height, the guide wheel 309 slides in the opposite direction along the limiting groove 403, driving the first slider 305, the second slider 306 and the third slider 307 back to the maximum contour, releasing the contact with the material plate. 7. After the upper base plate 104 rises, the positioning plate 202 loses its pressure source, and the spring plunger 201 elastically resets, driving the positioning plate 202 back to the top of the support block 204. The leveling cylinder 207 is activated, driving the leveling block 208 to move. The leveling block 208 is aligned with the arc surface of the formed material plate and squeezed to level the burrs on the surface of the material plate. 8. After leveling is completed, the leveling cylinder 207 is turned on again to release the limit on the material plate. The lifting cylinder 604 is turned on to drive the outer slider 602 and the corner slider 603 to slide along the groove on the surface of the inner slider 601. After the outer slider 602 and the corner slider 603 slide up to a certain height, they form a smaller plane. The staff can then take out the formed material plate.

[0029] The above are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, and are capable of using conventional experimental methods prior to that date. They can improve and implement the present invention based on the guidance provided in this application and their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the invention or the practicality of the patent.

Claims

1. A rapid prototyping mold for a car speaker metal mesh cover, characterized in that, The utility model relates to a net cover material plate positioning device of punch press, including: Base (1) is fixedly connected with punch press bottom, the lower bottom plate (101) is fixedly installed on the top surface of base (1), the guide pillar (102) is fixedly installed on the top surface of lower bottom plate (101) symmetry; Positioning part (2) is fixedly installed on the surface of lower bottom plate (101), and the positioning part (2) can position net cover material plate; Forming part (3) is fixedly installed in the middle part of guide pillar (102), and the forming part (3) is installed on the bottom surface of middle bottom plate (103); Pressure applying part (4) is fixedly installed on the top of guide pillar (102), and the pressure applying part (4) is installed on the upper bottom plate (104), and the pressure applying part (4) can drive the forming part (3) to complete flanging, inner buckle process; The spacer plate (5) is fixedly installed on the top surface of upper bottom plate (104), and the spacer plate (5) top surface is fixedly connected with punch press top.

2. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 1, wherein: The positioning part (2) includes spring plunger (201) evenly installed on the top surface of lower bottom plate (101), the top surface of spring plunger (201) is fixedly connected with positioning plate (202), the surface of positioning plate (202) is provided with through groove (203), the top surface of lower bottom plate (101) is provided with support block (204), the support block (204) top passes through the through groove (203), and the top surface of positioning plate (202) is provided with positioning block (205) opposite to the four edges of support block (204).

3. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 2, wherein: The forming part (3) includes mounting plate (301) fixedly installed on the bottom surface of middle bottom plate (103), the bottom surface of mounting plate (301) is provided with cross-shaped recess (302), the edge of recess (302) is provided with special-shaped groove (303) symmetry, and the bottom surface of mounting plate (301) is provided with X-shaped sliding groove (304); The first sliding block (305) is slidably arranged in the recess (302), the second sliding block (306) is slidably arranged in the sliding groove (304), and the third sliding block (307) is slidably arranged in the special-shaped groove (303); 4. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 3, wherein: The surface of first sliding block (305), second sliding block (306) and third sliding block (307) is provided with mounting groove (308), the mounting groove (308) is rotatably connected with guide wheel (309), and the bottom surface of mounting plate (301) is fixedly installed with fixed plate (310). The pressure applying part (4) includes a plurality of fixed blocks (401) fixedly installed on the bottom surface of upper bottom plate (104), and the fixed blocks (401) are provided with first sliding block (305), second sliding block (306) and third sliding block (307) correspondingly; The bottom surface of fixed block (401) is fixedly connected with lifting plate (402). The lifting plate (402) is provided with zigzag limiting grooves (403) on the side surface, the guide wheel (309) can slide along the limiting grooves (403), the fixing plate (310) is provided with lifting grooves (404) on the surface corresponding to the lifting plate (402), and the end of the lifting plate (402) penetrates through the lifting grooves (404).

5. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 4, wherein: The lifting plate (402) is symmetrically arranged in groups, the shape and direction of the limiting grooves (403) corresponding to each group of the lifting plate (402) are opposite.

6. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 2, wherein: The support block (204) is divided into an inner sliding block (601), an outer sliding block (602) and an angle sliding block (603), the base (1) is fixedly provided with a lifting cylinder (604) inside, the output end of the lifting cylinder (604) is fixedly connected with a lifting plate (605), the top surface of the lifting plate (605) is fixedly provided with a lifting rod (606) corresponding to the outer sliding block (602) and the angle sliding block (603), and the inner sliding block (601) is fixedly connected with the top surface of the lower bottom plate (101).

7. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 6, wherein: The outer sliding block (602) and the angle sliding block (603) can slide along the grooves on the surface of the inner sliding block (601), and the sliding angles of the outer sliding block (602) and the angle sliding block (603) relative to the inner sliding block (601) are all 10-20°.

8. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 1, wherein: The upper bottom plate (104) is uniformly fixedly provided with buffer plungers (105) on the bottom surface.

9. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 4 or 8, characterized in that: The extension length of the buffer plunger (105) is consistent with the stroke of the limiting groove (403).

10. The rapid prototyping mold for a loudspeaker metal mesh cover of an automobile as claimed in claim 2, wherein: The top surface of the positioning plate (202) is provided with leveling supports (206) opposite to the four corners of the support block (204), the top surface of the leveling support (206) is fixedly provided with a leveling cylinder (207), and the output end of the leveling cylinder (207) is fixedly connected with a leveling block (208).

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