A modular aluminum alloy punch die and a punch die

Abstract

The application discloses a kind of modular aluminum alloy stamping die and stamping die, including lower die and upper die;Lower die includes lower shell, multiple first installation cavities are equipped in lower shell, and lower stamping unit is installed in first installation cavity, and lower stamping unit includes punch and bottom cover, and punch lower end is threadedly connected with bottom cover, and punch can rotate, so that the upper end of punch is higher than the upper surface of lower shell or flush with the upper surface of lower shell;Upper die includes upper shell, and upper shell is fixed with the upper stamping unit corresponding to lower stamping unit, and upper stamping unit includes punch sleeve threadedly connected with upper shell, and punch sleeve lower part is flush with upper shell lower part, and punch sleeve is equipped with the punch groove consistent with the sectional shape of punch, and when upper die lower part abuts against lower die upper part, the upper end of punch can be inserted into punch groove.The application is separately replaced by upper and lower die, and upper and lower stamping units can be separately replaced, and different shapes, different distance hole stamping processing can be realized without replacing a complete set of mould.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum alloy stamping equipment, in particular to a modular aluminum alloy stamping die and stamping die. BACKGROUND

[0002] At present, aluminum alloy surface punching mainly adopts one-time multi-punching equipment processing. This kind of equipment has low cost and can punch multiple holes on the surface of aluminum alloy at one time, but has the disadvantage that the upper and lower die sizes are large, which is not only inconvenient to maintain, but also very inconvenient to replace when different holes need to be punched. In addition, the punching effect is single and cannot realize the punching processing of different shape holes and different distance holes, so it is urgent to improve it. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide a modular aluminum alloy stamping die and stamping die. The upper and lower die cores can be replaced separately, and the upper and lower stamping units can be replaced separately. Different shape and distance holes can be punched without replacing the entire die set.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme: a modular aluminum alloy stamping die, comprising a lower die core and an upper die core;

[0005] The lower die core comprises a lower shell, a plurality of first installation cavities are arranged in the lower shell, a lower stamping unit is installed in the first installation cavity, the lower stamping unit comprises a punch and a bottom cover, the lower end of the punch is threadedly connected with the bottom cover, and the punch can rotate so that the upper end of the punch is higher than or flush with the upper surface of the lower shell;

[0006] The upper die core comprises an upper shell, an upper stamping unit corresponding to the lower stamping unit is fixed in the upper shell, the upper stamping unit comprises a punch sleeve threadedly connected with the upper shell, the lower part of the punch sleeve is flush with the lower part of the upper shell, a punch groove with the same cross-sectional shape as the punch is arranged in the punch sleeve, and when the lower part of the upper die core abuts against the upper part of the lower die core, the upper end of the punch can be inserted into the punch groove.

[0007] Further, the bottom cover covers the lower part of the first installation cavity and is threadedly connected with the inner wall of the first installation cavity on the side, the inside of the bottom cover is provided with a threaded groove, the lower part of the punch is provided with a threaded column, the threaded column is threadedly connected with the threaded groove, the inside of the punch is provided with a groove, and the cross section of the groove is non-circular.

[0008] Further, the lower stamping unit comprises a support sleeve, the support sleeve is sleeved on the outside of the punch, the support sleeve can move up and down so that the upper end thereof is higher than or flush with the upper part of the lower shell, and the upper end of the punch can be flush with the upper part of the support sleeve.

[0009] Further, the first installation cavity is internally provided with a first spring, the upper part of the first spring abuts against the lower part of a support sleeve and the lower part of the first spring abuts against the upper part of a bottom cover, an annular surface is arranged on the upper part of the first installation cavity, the support sleeve comprises a mounting hole and a first limiting platform, the upper part of the first limiting platform is provided with a supporting platform, the upper part of the first limiting platform can abut against or be separated from the lower part of the annular surface, the supporting platform penetrates the annular surface, the punch penetrates the mounting hole, and the cross section of the mounting hole is consistent with the cross section of the punch.

[0010] Further, the punch sleeve is internally provided with an adapter sleeve, and the adapter sleeve is internally provided with an avoiding hole.

[0011] A modular aluminum alloy stamping die comprises a lower die assembly and an upper die assembly.

[0012] The lower die assembly comprises a lower die plate, a plurality of first installation grooves are arranged in the lower die plate, a lower die core is arranged in each first installation groove, and the upper part of the lower shell is flush with the upper surface of the lower die plate.

[0013] The upper die assembly comprises an upper die plate, the upper die plate comprises a second installation groove corresponding to the first installation groove, an upper die core is arranged in the second installation groove, the lower part of the upper die core is flush with the lower surface of the upper die plate, the lower stamping unit of the lower die core corresponds to the upper stamping unit of the upper die core, and the upper die assembly can move up and down so that the lower surface of the upper die plate abuts against or is separated from the upper surface of the lower die plate.

[0014] Further, the bottom of the first installation groove is provided with an annular groove, a second spring is arranged in the annular groove, the upper part of the second spring abuts against the lower part of the lower die core, an electromagnet is arranged at the bottom of the first installation groove, and the electromagnet can be attracted to and fixed with the lower part of the lower die core.

[0015] The upper part of the first installation groove is provided with a limiting groove, the upper shell comprises a second limiting platform, the second limiting platform is arranged in the limiting groove and the lower part of the second limiting platform abuts against the upper part of the first installation groove.

[0016] Further, the upper surface of the lower die plate is provided with a positioning rib, the lower surface of the upper die plate is provided with a boss, the lower part of the upper die core is flush with the lower surface of the boss, the lower part of the boss can be inserted into the positioning rib, the upper part of the lower die plate is provided with a guide column near four corners, and the guide column penetrates the upper die plate.

[0017] Further, the upper die plate moves up and down through a stamping mechanism, the stamping mechanism comprises a first pressing plate, a second pressing plate and a first driver, the lower part of the first pressing plate abuts the upper part of the upper die plate and is fixed to the upper die plate through a screw, the upper part of the first pressing plate is provided with a first limiting shaft close to both sides, the first pressing plate and the second pressing plate are connected through the first limiting shaft, the upper end of the first limiting shaft penetrates the second pressing plate, the outer side of the first limiting shaft is sleeved with a third spring, the lower end of the third spring abuts the upper part of the first pressing plate and the upper end abuts the lower part of the second pressing plate, and the first driver is connected with the second pressing plate.

[0018] Further, the upper die assembly further comprises a pushing mechanism, the pushing mechanism comprises a pushing plate and a supporting plate, the pushing plate is located between the first pressing plate and the second pressing plate, the supporting plate is located outside the stamping mechanism, the lower part of the supporting plate is fixedly connected with the side surface of the upper die plate, the upper part of the pushing plate is fixedly connected with a second driver, the second driver penetrates the second pressing plate and is fixedly connected with the upper part of the supporting plate at the penetrating end, the lower part of the pushing plate is provided with a ejector pin corresponding to the upper stamping unit, the lower end of the ejector pin is inserted into the stamping groove, and the second driver can drive the ejector pin to move up and down.

[0019] In summary, the present application has the following advantages:

[0020] 1. By arranging the modular lower die core in the lower die assembly and the modular upper die core in the upper die assembly, the lower die core and the upper die core can be separately disassembled, maintained and replaced, so that the stamping processing of different shapes and different distance holes on the surface of the aluminum alloy sheet can be realized without replacing the entire die, thereby greatly reducing the cost of the die;

[0021] 2. The shape of the punch can be replaced according to the punching requirement, and the specific operation is that the lower die core is taken out from the lower die plate, the bottom cover at the position where the punch needs to be replaced is screwed out of the lower shell, at this time, the punch at this position can be taken out and replaced, this way can not only replace punches of different shapes to realize the stamping operation of different shapes of holes on the sheet, but also replace the punch when the punch is damaged, which is not only convenient to operate, but also greatly reduces the maintenance cost of the die; the recess is a regular hexagon, when it is necessary to expand the hole distance between the processing holes, the lower die core does not need to be disassembled, only the inner hexagonal wrench needs to be inserted into the recess and the punch needs to be twisted, so that the punch descends and the upper surface of the punch is flush with the upper surface of the lower die plate, the punch at this position cannot punch the surface of the sheet, so that the hole distance between the processing holes can be expanded, which is convenient to operate; the shape of the punch sleeve can be replaced according to the shape of the punch, and the specific operation is that when the first pressing plate and the upper die plate are separated, the corresponding upper die core is taken out, a screwdriver is used to unscrew the corresponding punch sleeve, and then the punch sleeve with the corresponding shape of the punch groove is installed in the upper die core, when punching, the lower part of the lower die core abuts and pushes the supporting sleeve to descend, and the punch is inserted into the stamping groove, so as to punch the sheet. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the stamping die structure;

[0023] Figure 2 This is a cross-sectional view of a stamping die;

[0024] Figure 3 for Figure 2 A partial schematic diagram;

[0025] Figure 4 for Figure 2 A partial schematic diagram;

[0026] Figure 5 This is a partial cross-sectional view of the aluminum alloy sheet being stamped.

[0027] Figure 6 This is a schematic diagram of the lower mold assembly.

[0028] Figure 7 This is a structural diagram of the lower template;

[0029] Figure 8 This is an exploded view of the upper mold assembly;

[0030] Figure 9 This is an exploded view of the lower mold core;

[0031] Figure 10 This is a schematic diagram of the upper mold core;

[0032] Figure 11 This is a schematic diagram of one form of stamped aluminum alloy sheet.

[0033] Reference numerals: 1. Lower housing; 11. First mounting cavity; 12. Annular surface; 2. Lower stamping unit; 21. Punch; 211. Threaded post; 212. Groove; 22. Support sleeve; 221. First limiting platform; 222. Support platform; 223. Mounting hole; 23. Bottom cover; 231. Threaded groove; 24. First spring; 3. Upper housing; 31. Second limiting platform; 4. Upper stamping unit; 41. Punch sleeve; 411. Punch groove; 42. Adapter sleeve; 421. Clearance hole; 5. Lower template; 51. First mounting groove; 52. Guide post; 53. Positioning rib; 54. Second... 55. Spring; 56. Electromagnet; 6. Annular groove; 7. Upper template; 8. Second mounting groove; 9. Limiting groove; 10. Boss; 11. Stamping mechanism; 12. First pressure plate; 13. First limiting shaft; 14. Third spring; 15. Second pressure plate; 16. First driver; 17. Second limiting shaft; 18. Fourth spring; 19. Pushing mechanism; 20. Pushing plate; 21. Ejector pin; 22. Support plate; 33. Second driver; 44. Second driver; 55. Sheet; 56. Machining hole; 57. Lower mold core; 68. Upper mold core; 79. Lower mold assembly; 4000. Upper mold assembly. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 11 As shown, this embodiment discloses a modular aluminum alloy stamping die, including a lower die assembly 3000 and an upper die assembly 4000;

[0036] The lower mold assembly 3000 includes a lower template 5, which has a plurality of first mounting slots 51. A lower mold core 1000 is installed in each of the first mounting slots 51. The upper part of the lower housing 1 is flush with the upper surface of the lower template 5.

[0037] The upper die assembly 4000 is located above the lower die assembly 3000, the upper die assembly 4000 comprises an upper die plate 6, the upper die plate 6 comprises a second mounting groove 61 corresponding to the first mounting groove 51, an upper die core 2000 is mounted in the second mounting groove 61, the lower part of the upper die core 2000 is flush with the lower surface of the upper die plate 6, the lower stamping unit 2 of the lower die core 1000 corresponds to the upper stamping unit 4 of the upper die core 2000 one by one, the upper die assembly 4000 can move up and down, so that the lower surface of the upper die plate 6 abuts or is separated from the upper surface of the lower die plate 5, specifically, the upper die plate 6 moves up and down through the stamping mechanism 7, the stamping mechanism 7 comprises a first pressing plate 71, a second pressing plate 74 and a first driver 75, the first driver 75 is a prior art, preferably an oil cylinder, the lower part of the first pressing plate 71 abuts the upper part of the upper die plate 6 and is fixed to the upper die plate 6 through screws, the upper part of the first pressing plate 71 is provided with a first limiting shaft 72 close to both sides, the first pressing plate 71 and the second pressing plate 74 are connected through the first limiting shaft 72, the first limiting shaft 72 is T-shaped in cross section, the upper end of the first limiting shaft 72 penetrates through the second pressing plate 74, the third spring 73 is sleeved outside the first limiting shaft 72, the lower end of the third spring 73 abuts the upper part of the first pressing plate 71 and the upper end abuts the lower part of the second pressing plate 74, the first driver 75 is connected with the second pressing plate 74, and the first driver 75 is fixed with a stamping device (not shown in the figure);

[0038] As shown in Figure 1 When it is necessary to punch the surface of the aluminum alloy sheet 9, the aluminum alloy sheet 9 is placed on the upper surface of the lower die plate 5, the first driver 75 pushes the second pressing plate 74 to descend, the second pressing plate 74 pushes the first pressing plate 71 and the upper die plate 6 to descend, through the cooperation of the lower die core 1000 and the upper die core 2000, the surface of the sheet 9 can be stamped at one time to form a plurality of processing holes 91, through the setting of the first limiting shaft 72 and the third spring 73, the buffering effect can be achieved, thereby having the protection effect on the lower die plate 5 and the upper die plate 6.

[0039] As shown in Figures 3 to 5As shown, the bottom of the first installation slot 51 is provided with an annular groove 56, the second spring 54 is installed in the annular groove 56, the upper part of the second spring 54 abuts the lower part of the lower die core 1000, the electromagnet 55 is installed at the bottom of the first installation slot 51, the electromagnet 55 can be attracted to the lower part of the lower die core 1000, when the lower die core 1000 is installed in the first installation slot 51, the electromagnet 55 is powered, the electromagnet 55 attracts the lower die core 1000 and compresses the second spring 54, realizing the fixation of the lower die core 1000, when the lower die core 1000 needs to be replaced, only the electromagnet 55 is powered off, the electromagnet 55 is not attracted to the lower die core 1000, at this time the lower die core 1000 is subjected to the elastic force of the second spring 54 and can move upward, so that the upper part of the lower die core 1000 is higher than the upper surface of the lower die plate 5, thereby facilitating the removal of the lower die core 1000 from the first installation slot 51, convenient operation;

[0040] The upper part of the first installation slot 51 is provided with a limiting groove 62, the upper shell 3 includes a second limiting table 31, the second limiting table 31 is located in the limiting groove 62 and abuts the upper part of the first installation slot 51, the lower part of the first pressing plate 71 abuts the upper part of the upper die plate 6 and is fixed to the upper die plate 6 by a screw, when the upper die core 2000 needs to be replaced, only the screw connecting the first pressing plate 71 and the upper die plate 6 needs to be removed, the separation of the upper die plate 6 and the stamping mechanism 7 can be realized, and the upper die core 2000 is exposed, at this time only a pushing force needs to be applied to the upper die core 2000 from bottom to top, the upper die core 2000 can be removed from the first installation slot 51, convenient operation;

[0041] Therefore, by setting the modular lower die core 1000 in the lower die assembly 3000 and setting the modular upper die core 2000 in the upper die assembly 4000, the separate disassembly of the lower die core 1000 and the upper die core 2000 can be realized, the maintenance is facilitated, and the corresponding lower die core 1000 and upper die core 2000 can be replaced, the stamping processing of aluminum alloy sheet 9 with different shapes and different distance holes on the surface can be realized, the entire die does not need to be replaced, and the die cost is greatly reduced.

[0042] As shown in Figure 1 and Figure 2 The upper surface of the lower die plate 5 is provided with a positioning rib 53, the lower surface of the upper die plate 6 is provided with a boss 63, the lower part of the upper die core 2000 is flush with the lower surface of the boss 63, the lower part of the boss 63 can be inserted into the positioning rib 53, when the sheet 9 is processed, the sheet 9 needs to be placed in the area surrounded by the positioning rib 53, and the sheet 9 is limited by the positioning rib 53, thereby improving the consistency of the sheet 9 processing.

[0043] The lower die plate 5 is provided with guide columns 52 near the four corners of the upper part, the guide columns 52 can penetrate the upper die plate 6 and the first pressing plate 71, by setting the guide columns 52, the guiding effect can be achieved, and the matching precision of the lower die assembly 3000 and the upper die assembly 4000 during stamping is improved.

[0044] As shown in Figures 3-5 and Figure 9 The lower die 1000 includes a lower shell 1, a plurality of first installation cavities 11 are arranged in the lower shell 1, and a lower stamping unit 2 is arranged in the first installation cavity 11, in the present application, nine first installation cavities 11 are arranged at equal intervals in each lower shell 1, that is, nine lower stamping units 2 are arranged in each lower shell 1, the lower stamping unit 2 includes a punch 21 and a bottom cover 23, the lower end of the punch 21 is threadedly connected with the bottom cover 23, the punch 21 can rotate, so that the upper end of the punch 21 is higher than or flush with the upper surface of the lower shell 1, specifically, the bottom cover 23 covers the lower part of the first installation cavity 11 and is threadedly connected with the inner wall of the first installation cavity 11, the inside of the bottom cover 23 is provided with a threaded groove 231, the lower part of the punch 21 is provided with a threaded column 211, the threaded column 211 is threadedly connected with the threaded groove 231, the inside of the punch 21 is provided with a groove 212, the cross section of the groove 212 is non-circular, the cross section shape of the punch 21 can be circular, star-shaped, polygonal and the like, the shape of the punch 21 is the shape of the processing hole 91 of the sheet 9, in the present application, the lower stamping unit 2 is designed to be replaceable, specifically, the shape of the punch 21 can be replaced according to the punching requirement, the specific operation is that after the lower die 1000 is taken out from the lower die plate 5, the bottom cover 23 at the position where the punch 21 needs to be replaced is screwed out of the lower shell 1, at this time, the punch 21 at this position can be taken out for replacement, this way not only can replace punches 21 of different shapes, so as to realize the stamping work of the sheet 9 with different shaped holes, but also can replace the punch 21 when the punch 21 is damaged, which is not only convenient to operate, but also greatly reduces the maintenance cost of the mold; the groove 212 is a regular hexagon, when it is needed to expand the hole distance between the processing holes 91, the lower die 1000 does not need to be disassembled, only need to insert a hexagonal wrench into the groove 212 and twist the punch 21, so that the punch 21 is lowered and the upper surface of the punch 21 is flush with the upper surface of the lower die plate 5, at this time, the punch 21 at this position cannot punch the surface of the sheet 9, so as to expand the hole distance between the processing holes 91, which is convenient to operate.

[0045] The lower punching unit 2 comprises a supporting sleeve 22 sleeved outside the punch 21, the supporting sleeve 22 can move up and down so that the upper end thereof is higher than or flush with the upper part of the lower shell 1, the upper end of the punch 21 can be flush with the upper part of the supporting sleeve 22, specifically, the first mounting cavity 11 is internally provided with a first spring 24, the upper part of the first spring 24 abuts against the lower part of the supporting sleeve 22 and the lower part thereof abuts against the upper part of the bottom cover 23, the inner side of the upper part of the first mounting cavity 11 is provided with an annular surface 12, the supporting sleeve 22 comprises a mounting hole 223 and a first limiting table 221, the upper part of the first limiting table 221 is provided with a supporting table 222, the upper part of the first limiting table 221 can abut against or be separated from the lower part of the annular surface 12, the supporting table 222 penetrates through the annular surface 12, the punch 21 penetrates through the mounting hole 223, the cross section of the mounting hole 223 is consistent with that of the punch 21, the cross section of the supporting sleeve 22 is circular, when the lower punching unit 2 is in the punching state, the upper surface of the punch 21 is higher than the upper surface of the lower shell 1 and flush with the upper surface of the supporting sleeve 22, because the position of the punch 21 in the state other than the punching state is lower than that in the punching state, when the sheet 9 is placed on the uneven punch 21, the sheet 9 can be uneven, which affects the punching effect, therefore, the supporting sleeve 22 is arranged, when the sheet 9 needs to be punched, the sheet 9 is placed on the upper surface of the supporting sleeve 22, by arranging the supporting sleeve 22, the supporting area of the sheet 9 can be increased and the flatness when being placed can be improved, so that the punching effect is ensured.

[0046] As shown in Figure 4 and Figure 5 The upper die core 2000 comprises an upper shell 3, the upper shell 3 is internally fixed with the upper punching unit 4 corresponding to the lower punching unit 2, the upper punching unit 4 comprises a punch sleeve 41 threadedly connected with the upper shell 3, the lower part of the punch sleeve 41 is flush with the lower part of the upper shell 3, the punch sleeve 41 is internally provided with a punch groove 411 consistent in shape with the cross section of the punch 21, when the lower part of the upper die core 2000 abuts against the upper part of the lower die core 1000, the upper end of the punch 21 can be inserted into the punch groove 411, specifically, in the present application, the upper punching unit 4 is also designed to be replaceable, specifically, the shape of the punch sleeve 41 can be replaced according to the shape of the punch 21, the specific operation is that after the first pressing plate 71 and the upper die plate 6 are separated, the corresponding upper die core 2000 is taken out, a screwdriver is used to unscrew the corresponding punch sleeve 41, and then the punch sleeve 41 with the punch groove 411 corresponding to the shape of the punch 21 is installed in the upper die core 2000, when punching, the lower part of the upper die core 2000 abuts against and pushes the supporting sleeve 22 to descend, and the punch 21 is inserted into the punch groove 411, so that the sheet 9 is punched.

[0047] The adapter sleeve 42 is inserted in the punch sleeve 41, when the punch groove 411 does not need to be punched, the corresponding type of adapter sleeve 42 is replaced, so that the lower surface of the adapter sleeve 42 is flush with the lower surface of the upper shell 3, thereby blocking the punch groove 411.

[0048] As shown in Figure 5 When the punch 21 is punching, the waste will be embedded in the punch groove 411, so the waste embedded in the punch groove 411 needs to be pushed out by the pushing mechanism 8, specifically, the pushing mechanism 8 includes a pushing plate 81 and a supporting plate 83, the pushing plate 81 is located between the first pressing plate 71 and the second pressing plate 74, when the second pressing plate 74 is lowered to the lowest position, the pushing plate 81 will not be contacted, the supporting plate 83 is located outside the punching mechanism 7, the lower part of the supporting plate 83 is fixedly connected with the side surface of the upper die plate 6 through screws, the supporting plate 83 does not contact the punching mechanism 7, the upper part of the pushing plate 81 is fixedly connected with the second driver 84, the second driver 84 penetrates the second pressing plate 74 and is fixedly connected with the upper part of the supporting plate 83 at the penetrating end, the second driver 84 does not contact the second pressing plate 74, the second driver 84 is a prior art, preferably an oil cylinder, and a plurality of second limiting shafts 76 are fixedly connected with the upper part of the first pressing plate 71, the second limiting shaft 76 is T-shaped in cross section, the upper end of the second limiting shaft 76 penetrates the upper surface of the pushing plate 81, the pushing plate 81 can move up and down along the second limiting shaft 76, the fourth spring 77 is sleeved outside the second limiting shaft 76, the upper end of the fourth spring 77 abuts against the lower part of the pushing plate 81 and the lower end abuts against the upper part of the first pressing plate 71, the lower part of the pushing plate 81 is provided with a corresponding ejector pin 82 of the upper punching unit 4, the lower end of the ejector pin 82 is inserted into the punch groove 411, the inside of the adapter sleeve 42 is provided with an avoiding hole 421, the lower end of the ejector pin 82 is inserted into the avoiding hole 421, the second driver 84 can drive the ejector pin 82 to move up and down, thereby pushing the waste in the punch groove 411 out, since the ejector pin 82 is an elongated columnar structure, the adapter sleeve 42 can guide the ejector pin 82.

[0049] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiment, any technical scheme belonging to the idea of the present application is also within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A modular aluminum alloy stamping die core, characterized in that, Includes the lower mold core (1000) and the upper mold core (2000); The lower die core (1000) includes a lower housing (1), and the lower housing (1) is provided with a plurality of first mounting cavities (11). A lower stamping unit (2) is installed in the first mounting cavity (11). The lower stamping unit (2) includes a punch (21) and a bottom cover (23). The lower end of the punch (21) is threadedly connected to the bottom cover (23). The punch (21) can rotate so that the upper end of the punch (21) is higher than or flush with the upper surface of the lower housing (1). The upper die core (2000) includes an upper housing (3), and an upper stamping unit (4) corresponding to the lower stamping unit (2) is fixed inside the upper housing (3). The upper stamping unit (4) includes a punch sleeve (41) threadedly connected to the upper housing (3). The lower part of the punch sleeve (41) is flush with the lower part of the upper housing (3). The punch sleeve (41) is provided with a punch groove (411) that is consistent with the cross-sectional shape of the punch (21). When the lower part of the upper die core (2000) abuts against the upper part of the lower die core (1000), the upper end of the punch (21) can be inserted into the punch groove (411). The bottom cover (23) covers the lower part of the first mounting cavity (11) and is threaded to the inner wall of the first mounting cavity (11) on its side. The bottom cover (23) has a threaded groove (231) inside. The punch (21) has a threaded post (211) at the lower part. The threaded post (211) is threaded to the threaded groove (231). The punch (21) has a groove (212) inside. The groove (212) has a non-circular cross section. The lower stamping unit (2) includes a support sleeve (22), which is sleeved on the outside of the punch (21). The support sleeve (22) can move up and down so that its upper end is higher than or flush with the upper part of the lower housing (1). The upper end of the punch (21) can be flush with the upper part of the support sleeve (22).

2. The modular aluminum alloy stamping die core according to claim 1, characterized in that, The first mounting cavity (11) is provided with a first spring (24). The upper part of the first spring (24) abuts against the lower part of the support sleeve (22) and the lower part abuts against the upper part of the bottom cover (23). The upper inner side of the first mounting cavity (11) is provided with an annular surface (12). The support sleeve (22) includes a mounting hole (223) and a first limiting platform (221). The upper part of the first limiting platform (221) is provided with a support platform (222). The upper part of the first limiting platform (221) can abut against or disengage from the lower part of the annular surface (12). The support platform (222) penetrates the annular surface (12). The punch (21) penetrates the mounting hole (223). The cross section of the mounting hole (223) is consistent with the cross section of the punch (21).

3. The modular aluminum alloy stamping die core according to claim 1, characterized in that, The punch sleeve (41) is provided with an adapter sleeve (42), and the adapter sleeve (42) is provided with a clearance hole (421).

4. A modular aluminum alloy stamping die, made using a modular aluminum alloy stamping die core as described in any one of claims 1-3, characterized in that, Includes a lower mold assembly (3000) and an upper mold assembly (4000); The lower mold assembly (3000) includes a lower template (5), which has a plurality of first mounting slots (51) and a lower mold core (1000) installed in each of the first mounting slots (51). The upper part of the lower shell (1) is flush with the upper surface of the lower template (5). The upper mold assembly (4000) includes an upper template (6), which includes a second mounting groove (61) corresponding to the first mounting groove (51). An upper mold core (2000) is installed in the second mounting groove (61). The lower part of the upper mold core (2000) is flush with the lower surface of the upper template (6). The lower stamping unit (2) of the lower mold core (1000) corresponds one-to-one with the upper stamping unit (4) of the upper mold core (2000). The upper mold assembly (4000) can move up and down so that the lower surface of the upper template (6) abuts against or detaches from the upper surface of the lower template (5).

5. A modular aluminum alloy stamping die according to claim 4, characterized in that, The bottom of the first mounting groove (51) is provided with an annular groove (56), and a second spring (54) is installed in the annular groove (56). The upper part of the second spring (54) abuts against the lower part of the lower mold core (1000). An electromagnet (55) is installed at the bottom of the first mounting groove (51), and the electromagnet (55) can be attracted and fixed to the lower part of the lower mold core (1000). The first mounting groove (51) is provided with a limiting groove (62) at its upper part. The upper housing (3) includes a second limiting platform (31), which is located in the limiting groove (62) and its lower part abuts against the upper part of the first mounting groove (51).

6. A modular aluminum alloy stamping die according to claim 5, characterized in that, The lower template (5) has a positioning rib (53) on its upper surface, and the upper template (6) has a boss (63) on its lower surface. The lower part of the upper mold core (2000) is flush with the lower surface of the boss (63). The lower part of the boss (63) can be inserted into the positioning rib (53). The upper part of the lower template (5) has guide posts (52) near the four corners. The guide posts (52) penetrate the upper template (6).

7. A modular aluminum alloy stamping die according to claim 5, characterized in that, The upper template (6) moves up and down through a stamping mechanism (7). The stamping mechanism (7) includes a first pressure plate (71), a second pressure plate (74), and a first driver (75). The lower part of the first pressure plate (71) abuts against the upper part of the upper template (6) and is fixed to the upper template (6) by screws. The upper part of the first pressure plate (71) is provided with a first limiting shaft (72) near both sides. The first pressure plate (71) and the second pressure plate (74) are connected through the first limiting shaft (72). The upper end of the first limiting shaft (72) passes through the second pressure plate (74). A third spring (73) is sleeved on the outside of the first limiting shaft (72). The lower end of the third spring (73) abuts against the upper part of the first pressure plate (71) and the upper end abuts against the lower part of the second pressure plate (74). The first driver (75) is connected to the second pressure plate (74).

8. A modular aluminum alloy stamping die according to claim 7, characterized in that, The upper mold assembly (4000) also includes a pusher mechanism (8), which includes a pusher plate (81) and a support plate (83). The pusher plate (81) is located between the first pressure plate (71) and the second pressure plate (74). The support plate (83) is located outside the stamping mechanism (7). The lower part of the support plate (83) is fixedly connected to the side of the upper template (6). The upper part of the pusher plate (81) is fixedly equipped with a second driver (84). The second driver (84) passes through the second pressure plate (74) and its protruding end is fixedly connected to the upper part of the support plate (83). The lower part of the pusher plate (81) is provided with an ejector pin (82) corresponding to the upper stamping unit (4). The lower end of the ejector pin (82) is inserted into the punch groove (411). The second driver (84) can drive the ejector pin (82) to move up and down.

Images