Numerical control stretching forming die for aluminum foil

Abstract

The invention belongs to the field of aluminum foil machining equipment, and provides an aluminum foil numerical control stretching forming die which comprises a main frame, a die body, a punch, a first driving mechanism and a second driving mechanism. The main frame forms a bottom plate and a top plate which are opposite in a spaced mode. The die is arranged on the side, away from the bottom plate, of the top plate and comprises a lower die plate and a female die which are arranged in a matched mode, the lower die plate is connected to the top plate, and a cavity for forming target aluminum foil is formed in the end, facing the lower die plate, of the female die; the punch penetrates through the lower die plate and the top plate and can stretch into the cavity. The first driving mechanism comprises a lower auxiliary frame and a first servo motor installed on the lower auxiliary frame, and the lower auxiliary frame is connected to the side, away from the top plate, of the bottom plate. The second driving mechanism comprises an upper auxiliary frame and a second servo motor installed on the main frame, and the upper auxiliary frame is connected to the top plate and located between the bottom plate and the top plate.

Description

Technical Field

[0001] The present application belongs to the field of aluminum foil processing equipment, and in particular, relates to a CNC stretching forming die for aluminum foil. Background Art

[0002] Aluminum foil products have attracted much attention due to their wide applications in packaging, construction, electronics, aerospace and other fields. These fields have strict requirements on the shape, size and precision of aluminum foil products. Although traditional aluminum foil forming processes, such as manual stamping or mechanical stamping, meet production needs to a certain extent, they have problems such as low production efficiency, low forming accuracy, and severe mold wear. With the rapid development of CNC technology, CNC stretch forming dies have gradually become the mainstream equipment for aluminum foil product processing due to their high precision, high efficiency and easy control. However, the existing CNC stretch forming dies have complex structural designs, resulting in high equipment maintenance costs, which greatly increases the production cost of aluminum foil products. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a CNC stretching forming die for aluminum foil to solve the technical problem of difficult maintenance of aluminum foil forming dies in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide an aluminum foil CNC stretching forming die, comprising: A main frame, forming a bottom plate and a top plate spaced opposite to each other; A mold is arranged on a side of the top plate away from the bottom plate, the mold comprises a lower mold plate and a concave mold which are matched with each other, the lower mold plate is connected to the top plate, and the concave mold forms a cavity for molding a target aluminum foil at one end of the lower mold plate; A punch, penetrating the lower template and the top plate and capable of extending into the cavity; A first driving mechanism comprises a lower sub-frame and a first servo motor mounted on the lower sub-frame, wherein the lower sub-frame is connected to a side of the bottom plate away from the top plate, and the first servo motor is drivingly connected to the concave die and is used to drive the concave die to approach or move away from the lower die plate; The second driving mechanism includes an upper sub-frame and a second servo motor installed on the main frame, the upper sub-frame is connected to the top plate and is located between the bottom plate and the top plate, and the second servo motor is transmission-connected to the punch and is used to drive the punch to approach or move away from the die.

[0005] Optionally, the mold further comprises an upper mold plate connected to the concave mold, and the first driving mechanism further comprises a first pull rod, a first spring, a floating bottom plate, a lower floating base, a lower roller shaft, a first roller and a first cam; The first pull rod slides through the top plate and the bottom plate and can move along its own axial direction, the upper template and the movable bottom plate are connected to the two ends of the first pull rod, the first spring is sleeved on the first pull rod and the two ends of the first spring are respectively abutted against the top plate and the upper template, the lower floating base is connected to the floating bottom plate, the lower roller shaft is horizontally placed on the lower floating base, the first roller is coaxially rotatably sleeved on the lower roller shaft, the first cam is arranged in the lower sub-frame, slewingly supported by the lower sub-frame and coaxially connected to the output shaft of the first servo motor, the first roller is located below the first cam and cooperates with and abuts against the first cam and can be driven by the first cam, and the moving direction of the first roller is parallel to the axial direction of the first pull rod.

[0006] Optionally, the first driving mechanism further comprises a bearing sleeved on the lower roller shaft, and the lower sub-frame is provided with a U-shaped groove adapted to the bearing and opening toward the floating bottom plate; The bearing is slidably disposed in the U-shaped groove, and a sliding direction of the bearing in the U-shaped groove is parallel to an axial direction of the pull rod.

[0007] Optionally, a plurality of spaced-apart accommodating cavities are formed on the lower floating base; The lower roller shaft passes through the plurality of accommodating cavities in sequence and enables at least a portion of the first roller to be disposed in the accommodating cavity.

[0008] Optionally, the first driving mechanism further includes a die carrier plate, a pressing plate and a second spring; The die carrier is connected to the upper mold plate and the die is connected to the upper mold plate through the die carrier. The pressure plate is movably mounted on the die and spaced apart from the die carrier. Both ends of the second spring are respectively in contact with the die carrier and the pressure plate.

[0009] Optionally, the first driving mechanism further includes a guide cylinder and a tightening bolt; The guide cylinder passes through the die carrier plate and is slidably connected to the die carrier plate, the tension bolt passes through the center of the guide cylinder and connects the guide cylinder and the pressure plate, and the upper mold plate is provided with an avoidance groove for the guide cylinder to move.

[0010] Optionally, the second driving mechanism further includes a punch base plate, a guide rod, an upper floating base, an upper roller shaft, a second roller and a second cam; The punch base plate is connected to the punch and is arranged on the upper and lower sides of the top plate opposite to the lower template, the guide rod is connected to the top plate and passes through the punch base plate, the punch base plate is also slidably connected to the guide rod and the sliding direction of the punch base plate relative to the guide rod is parallel to the moving direction of the punch, the upper floating base is connected to the lower end of the punch base plate, the upper roller shaft is horizontally placed on the upper floating base, the second roller is coaxially connected to the upper roller shaft, the second cam is coaxially connected to the output shaft of the second servo motor and the second roller is arranged between the second cam and the top plate, the second roller cooperates and abuts against the second cam and can be driven by the second cam, and the moving direction of the second roller is parallel to the moving direction of the punch; the second cam is slewingly supported by the upper sub-frame.

[0011] Optionally, the second driving mechanism further includes a third spring; The surfaces opposite to the punch bottom plate and the top plate are respectively recessed and cooperate to form a cavity for accommodating the third spring, and two ends of the third spring are respectively in contact with the punch bottom plate and the top plate.

[0012] Optionally, the second driving mechanism further comprises an oil baffle plate connected to the bottom of the upper sub-frame; The oil baffle plate is open on one side toward the top plate, and the punch bottom plate, the guide rod, the upper floating base, the upper roller shaft, the second roller and the second cam are all arranged between the oil baffle plate and the top plate.

[0013] Optionally, the aluminum foil CNC stretching forming die further includes a trigger block and a sensor; The trigger block is drivingly connected to the output shaft of the first servo motor and the output shaft of the second servo motor respectively; The sensor is used to detect the rotation angle of the trigger block, and the first servo motor and the second servo motor are respectively connected to the sensor for communication.

[0014] The beneficial effect of the aluminum foil CNC stretching forming mold provided by the present application is that: compared with the prior art, in the aluminum foil CNC stretching forming mold provided by the present application, the concave mold can be driven by the first driving mechanism to approach or move away from the lower template, and the concave mold forms a cavity for forming the target aluminum foil at one end facing the lower template, and the punch can be driven by the second driving mechanism to extend into the cavity and complete the punching of the target aluminum foil. Since the mold is arranged on the upper side of the top plate, the lower sub-frame for installing the first driving mechanism and the upper sub-frame for installing the second driving mechanism are arranged on the other side of the top plate; and since the first driving mechanism and the second driving mechanism are also separated by the bottom plate, the mold, the first driving mechanism and the second driving mechanism in the present application are arranged in three relatively independent spaces and are not prone to work interference, which not only makes the spatial structure design of the aluminum foil CNC stretching forming mold provided in the present application more reasonable, but also facilitates its later maintenance, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of the aluminum foil CNC stretching forming die in the embodiment of the present application; Figure 2 This is a side view of the overall structure of the aluminum foil CNC stretching forming die in the embodiment of the present application; Figure 3 For along Figure 2 The cross-sectional structure diagram along the AA line; Figure 4 It is a partial cross-sectional view of the aluminum foil CNC stretching forming die in the embodiment of the present application; Figure 5 For along Figure 4 Cross-sectional structure diagram along line BB.

[0017] Among them, the reference numerals in the figure are: 100, main frame; 101, bottom plate; 102, top plate; 200, mold; 201, lower template; 202, concave mold; 203, cavity; 204, upper template; 300, punch; 401, lower sub-frame; 402, first servo motor; 403, first pull rod; 404, first spring; 405, floating bottom plate; 406, lower floating base; 407, lower roller shaft; 408, first roller; 409, first cam; 410, bearing; 411, U-shaped groove; 412, accommodating cavity; 413, bearing; 414, U-shaped groove; 415, accommodating cavity; 416, U-shaped groove; 417, U-shaped groove; 418, U-shaped groove; 419, U-shaped groove; 420, U-shaped groove; 421, U-shaped groove; 422, U-shaped groove; 423, U-shaped groove; 424, U-shaped groove; 425, U-shaped groove; 426, U-shaped groove; 427, U-shaped groove; 428, U-shaped groove; 429, U-shaped groove; 430, U-shaped groove; 431, U-shaped groove; 432, U-shaped groove; 433, U-shaped groove; 434, U-shaped groove; 435, U-shaped groove; 436, U-shaped groove; 437, U-shaped groove; 438, U-shaped groove; 439, U-shaped groove; 440, U-shaped groove; 441, U-shaped groove; 442, U-shaped groove; 443, U-shaped groove; 444, U 3. Die carrier plate; 414. Pressing plate; 415. Second spring; 416. Guide cylinder; 417. Tightening bolt; 418. Avoidance groove; 501. Upper sub-frame; 502. Second servo motor; 503. Punch base plate; 504. Guide rod; 505. Upper floating base; 506. Upper roller shaft; 507. Second roller; 508. Second cam; 509. Third spring; 510. Oil baffle plate; 600. Trigger block; 700. Sensor; 800. First rotating shaft; 900. Second rotating shaft; 1000. Sliding sleeve. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] Please also read Figures 1 to 5 Now, a CNC stretching die for aluminum foil provided in the embodiment of the present application is described. The CNC stretching die for aluminum foil comprises a main frame 100, a die 200, a punch 300, a first driving mechanism and a second driving mechanism. Among them: The main frame 100 forms a bottom plate 101 and a top plate 102 which are spaced apart from each other; the mold 200 is arranged on the side of the top plate 102 away from the bottom plate 101, and the mold 200 includes a lower mold plate 201 and a concave mold 202 which are arranged in a matching manner, the lower mold plate 201 is connected to the top plate 102, and the concave mold 202 is formed at one end of the lower mold plate 201 to form a cavity 203 for forming a target aluminum foil; the punch 300 penetrates the lower mold plate 201 and the top plate 102 and can extend into the cavity 203; the first driving mechanism includes a lower sub-frame 401 and a first servo mounted on the lower sub-frame 401. The first servo motor 402 and the lower sub-frame 401 are connected to the side of the bottom plate 101 away from the top plate 102. The first servo motor 402 is connected to the die 202 and is used to drive the die 202 to move closer to or away from the lower template 201. The second driving mechanism includes an upper sub-frame 501 and a second servo motor 502 installed on the main frame 100. The upper sub-frame 501 is connected to the top plate 102 and is located between the bottom plate 101 and the top plate 102. The second servo motor 502 is connected to the punch 300 and is used to drive the punch 300 to move closer to or away from the die 202.

[0023] According to the above structure provided in the present embodiment, in the aluminum foil CNC stretching forming mold provided in the present embodiment, the die 202 can be driven by the first driving mechanism to approach or move away from the lower template 201 and the die 202 is directed toward one end of the lower template 201 to form a cavity 203 for forming the target aluminum foil, and the punch 300 can be driven by the second driving mechanism to extend into the cavity 203 and complete the punching of the target aluminum foil. Since the mold 200 is arranged on the upper side of the top plate 102, the lower sub-frame 401 for installing the first driving mechanism and the upper sub-frame 501 for installing the second driving mechanism are arranged on the other side of the top plate 102; and since the first driving mechanism and the second driving mechanism are also separated by the bottom plate 101, the mold 200, the first driving mechanism and the second driving mechanism in this embodiment are arranged in three relatively independent spaces and are not prone to work interference. This not only makes the spatial structure design of the aluminum foil CNC stretching forming mold provided in this embodiment more reasonable, but also facilitates its later maintenance, which is far superior to the prior art; at the same time, the mold 200 is arranged above the first driving mechanism and the second driving mechanism, which makes it more convenient to replace and adjust the mold, thereby improving production efficiency and forming quality.

[0024] In another embodiment of the present application, please refer to Figures 1 to 5The mold 200 further includes an upper mold plate 204 connected to the concave mold 202, and the first driving mechanism further includes a first pull rod 403, a first spring 404, a floating bottom plate 405, a lower floating base 406, a lower roller shaft 407, a first roller 408, and a first cam 409. The first pull rod 403 slides through the top plate 102 and the bottom plate 101 and can move along its own axis. The upper mold plate 204 and the movable bottom plate 101 are connected to both ends of the first pull rod 403. The first spring 404 is sleeved on the first pull rod 403 and the two ends of the first spring 404 are respectively abutted against the top plate 102 and the upper mold plate 204. The lower floating base 406 is connected to the floating bottom plate 405. The lower roller shaft 407 is horizontally placed on the lower floating base 406. The first roller 408 is coaxially rotatable and sleeved on the lower roller shaft 407. The first cam 409 is arranged in the lower sub-frame 401 and is slewingly supported by the lower sub-frame 401 and is coaxial with the output shaft of the first servo motor 402. The first roller 408 is located below the first cam 409 and is in contact with the first cam 409 and can be driven by the first cam 409. The moving direction of the first roller 408 is parallel to the axial direction of the first pull rod 403. Here, the first cam 409 has a first rotating shaft 800 extending to both ends of its own axial direction. The first rotating shaft 800 is slewably supported by a bearing installed on the lower sub-frame 401, wherein the first cam 409 and the first rotating shaft 800 can be an integrated structure or a split structure. In this embodiment, a split structure is adopted. The first cam 409 is installed on the first rotating shaft 800 by a key connection. Here, The first servo motor 402 can adopt a servo motor with a reducer. The output shaft of the first servo motor 402 is connected to one end of the first rotating shaft 800 through a coupling, so as to drive the first cam 409 to rotate. In order to ensure the stability of the first pull rod 403 when it moves along its own axial direction, a sliding sleeve 1000 is installed on the bottom plate 101 and the top plate 102. Through the guiding effect of the sliding sleeve 1000, there is an accurate position correspondence between the die 202 and the punch 300, thereby ensuring the molding quality of the aluminum foil when it is stretched and stamped into a product.

[0025] According to the above structure provided in this embodiment, when the first servo motor 402 drives the first cam 409 to rotate, the first roller 408 that cooperates with the first cam 409 can be driven to move in a direction parallel to the axial direction of the first tie rod 403. In this way, the lower roller shaft 407, the lower floating base 406 and the floating bottom plate 405 that are sequentially connected to the first roller 408 can move along with the first roller 408 and drive the first tie rod 403 connected to the floating bottom plate 405 to move along its own axial direction. Since the end of the first tie rod 403 away from the floating bottom plate 405 is connected to the upper mold plate 204 and the die 202 is connected to the upper mold, the first tie rod 403 can drive the die 202 to stably approach the lower mold plate 201 in a direction parallel to the axial direction of the first tie rod 403 through the upper mold plate 204. Since the two ends of the first spring 404 are respectively in contact with the top plate 102 and the upper template 204, the first spring 404 can store force when the upper template 204 approaches the lower template 201 and drive the upper template 204 and the lower template 201 away from each other after the first roller 408 loses the driving force of the first cam 409, which not only achieves the technical effect of stable approach and stable distance between the concave mold 202 and the lower template 201, but also helps to make the aluminum foil CNC stretching forming mold provided in this embodiment run stably for a longer time and reduce maintenance. It can be understood that in this embodiment, a plurality of first rollers 408 installed on the lower roller shaft 407 can be arranged side by side, which is conducive to further improving the movement stability of the lower roller shaft 407.

[0026] In another embodiment of the present application, please refer to Figures 1 to 5 The first driving mechanism also includes a bearing 410 mounted on the lower roller shaft 407, and a U-shaped groove 411 adapted to the bearing 410 and opened toward the floating bottom plate 405 is provided on the lower sub-frame 401; the bearing 410 is slidably arranged in the U-shaped groove 411, and the sliding direction of the bearing 410 in the U-shaped groove 411 is parallel to the axial direction of the pull rod. According to the above structure provided in this embodiment, the bearing 410 connected to both ends of the lower roller shaft 407 and able to slide in the U-shaped groove 411 can significantly improve the movement stability of the first roller 408, and at the same time, the upward bottom of the U-shaped groove 411 also has the function of limiting the upper position limit of the floating bottom plate 405, thereby limiting the distance of the concave mold 202 away from the lower mold plate 201 when the mold is opened, reducing the invalid stroke, which is conducive to further improving the operation stability of the aluminum foil CNC stretching forming mold in this embodiment and further reducing maintenance.

[0027] In another embodiment of the present application, please refer to Figures 1 to 5, a plurality of spaced accommodating cavities 412 are formed on the lower floating base 406; the lower roller shaft 407 passes through the plurality of accommodating cavities 412 in sequence and at least a portion of the first roller 408 is disposed in the accommodating cavity 412. According to the above structure provided in this embodiment, the accommodating cavity 412 disposed on the lower floating base 406 can not only further improve the matching stability of the first roller 408 and the first cam 409, but also enable the lower roller shaft 407 and the lower floating base 406 to form a more stable connection, which is conducive to further improving the operating stability of the aluminum foil CNC stretching forming mold in this embodiment and further reducing maintenance.

[0028] In another embodiment of the present application, please refer to Figures 1 to 5 The first driving mechanism also includes a die carrier plate 413, a pressure plate 414 and a second spring 415; the die carrier plate 413 is connected to the upper mold plate 204 and the die 202 is connected to the upper mold plate 204 through the die carrier plate 413, the pressure plate 414 is movably mounted on the die 202 and is spaced apart from the die carrier plate 413, and the two ends of the second spring 415 are respectively in contact with the die carrier plate 413 and the pressure plate 414.

[0029] According to the above structure provided in this embodiment, the pressing plate 414 movably mounted on the concave die 202 can move relative to the concave die 202, so that the pressing plate 414 can abut against the lower die plate 201 and press the target aluminum foil before the concave die 202 in the process of following the movement of the upper die plate 204, which can effectively prevent the target aluminum foil from shaking and significantly improve the molding quality of the target aluminum foil. In addition, after the pressing plate 414 abuts against the lower die plate 201, the concave die 202 will continue to approach the lower die plate 201, and the second spring 415 will be compressed during this process, so that when the concave die 202 moves away from the lower die plate 201, the second spring 415 can press the pressing plate 414 against the target aluminum foil by its own elastic force, so that the target aluminum foil can be demoulded better and faster, thereby significantly improving the molding efficiency of the aluminum foil CNC stretching mold in this embodiment.

[0030] In another embodiment of the present application, please refer to Figures 1 to 5, the first driving mechanism also includes a guide cylinder 416 and a tension bolt 417; the guide cylinder 416 penetrates the die carrier plate 413 and is slidably connected to the die carrier plate 413, the tension bolt 417 passes through the center of the guide cylinder 416 and connects the guide cylinder 416 and the press plate 414, and the upper mold plate 204 is provided with an escape groove 418 for the guide cylinder 416 to move. According to the above structure provided in this embodiment, the tension bolt 417 can make the guide cylinder 416 and the press plate 414 form a stable connection, and because the guide cylinder 416 is slidably connected to the die carrier plate 413, the guide cylinder 416 can provide a moving guide for the press plate 414, so that the moving process of the press plate 414 is more stable, which is conducive to further improving the operating stability of the aluminum foil CNC stretching forming mold in this embodiment and further reducing maintenance. In addition, the avoidance groove 418 formed on the upper template 204 in the present embodiment can provide a larger range of motion for the guide cylinder 416 on the one hand, and also facilitate the installation and disassembly of the tensioning bolt 417 on the other hand, which is beneficial to further improve the convenient maintenance effect of the aluminum foil CNC stretching forming mold in the present embodiment; in the present embodiment, a flange is provided at the upper end of the guide cylinder 416, and the lower end of the flange is abutted against the upper end surface of the die carrier plate 413 to limit the initial position of the pressing plate 414 and ensure the position stability of the pressing plate 414, wherein the avoidance groove 418 is larger than the outer diameter of the flange.

[0031] In another embodiment of the present application, please refer to Figures 1 to 5The second driving mechanism also includes a punch bottom plate 503, a guide rod 504, an upper floating base 505, an upper roller shaft 506, a second roller 507 and a second cam 508; the punch bottom plate 503 is connected to the punch 300 and is arranged on the upper and lower sides of the top plate 102 opposite to the lower template 201, the guide rod 504 is connected to the top plate 102 and passes through the punch bottom plate 503, the punch bottom plate 503 is also slidably connected to the guide rod 504 and the punch bottom plate 503 slides relative to the guide rod 504 The upper floating base 505 is connected to the lower end of the punch base plate 503, the upper roller shaft 506 is horizontally placed on the upper floating base 505, the second roller 507 is coaxially connected to the upper roller shaft 506, the second cam 508 is coaxially connected to the output shaft of the second servo motor 502, and the second roller 507 is arranged between the second cam 508 and the top plate 102, the second roller 507 cooperates with the second cam 508 and can be moved by the second cam 508 is driven, and the moving direction of the second roller 507 is parallel to the moving direction of the punch 300; the second cam 508 is rotatably supported by the upper sub-frame 501; in this embodiment, when the second roller 507 loses the force of the second cam 508, it can automatically fall back under the action of gravity; the second cam 508 has a second rotating shaft 900 extending to both ends of its own axis, and the second rotating shaft 900 is rotatably supported by bearings installed on the upper sub-frame 501, wherein the second rotating shaft 900 and the second cam 508 can be an integrated structure or a split structure. In this embodiment, a split structure is adopted, and the second cam 508 is installed on the second rotating shaft 900 and connected by a key. The second servo motor 502 can also be a servo motor with a reducer. The output shaft of the second servo motor 502 is connected to one end of the second rotating shaft 900 through a coupling, which is used to drive the second cam 508 to rotate at a set speed and rotation phase angle.

[0032] According to the above structure provided in this embodiment, when the second servo motor 502 drives the second cam 508 to rotate, the second roller 507 that cooperates with the second cam 508 can be driven to move, so that the upper roller shaft 506, the upper floating base 505, the punch base plate 503 and the punch 300 that are sequentially connected to the second roller 507 can all move with the second roller 507, thus achieving the technical effect of the second servo motor 502 driving the punch 300 to move. Since the punch base plate 503 is also slidably connected to the guide rod 504 and the sliding direction of the punch base plate 503 relative to the guide rod 504 is parallel to the moving direction of the punch 300, the guide rod 504 can provide a sliding guide for the movement of the punch base plate 503, which can further improve the moving stability of the punch 300 and is conducive to further improving the convenient maintenance effect of the aluminum foil CNC stretch forming mold in this embodiment. In addition, it can be understood that in this embodiment, a plurality of second rollers 507 installed on the upper roller shaft 506 can also be arranged side by side, which is beneficial to further improve the movement stability of the upper roller shaft 506.

[0033] In another embodiment of the present application, please refer to Figures 1 to 5 , the second driving mechanism also includes a third spring 509; the surfaces opposite to the punch bottom plate 503 and the top plate 102 are respectively recessed and cooperate to form a cavity for accommodating the third spring 509, and the two ends of the third spring 509 are respectively abutted against the punch bottom plate 503 and the top plate 102. According to the above structure provided in this embodiment, the third spring 509 with two ends abutting against the punch bottom plate 503 and the top plate 102 can store force after compression and drive the punch bottom plate 503 to automatically fall back, which is conducive to further improving the operating stability of the aluminum foil CNC stretching forming die in this embodiment and further reducing maintenance.

[0034] In another embodiment of the present application, please refer to Figures 1 to 5 The second driving mechanism further includes an oil baffle plate 510 connected to the bottom of the upper sub-frame 501; the oil baffle plate 510 is open toward one side of the top plate 102, and the punch bottom plate 503, the guide rod 504, the upper floating base 505, the upper roller shaft 506, the second roller 507 and the second cam 508 are all arranged between the oil baffle plate 510 and the top plate 102. According to the above structure provided in this embodiment, the oil baffle plate 510 connected to the bottom of the upper sub-frame 501 can prevent the lubricating oil between the components in the first driving mechanism from dripping onto the second driving mechanism, and can also recycle part of the lubricating oil, which is conducive to further improving the convenient maintenance effect of the aluminum foil CNC stretching forming mold in this embodiment.

[0035] In another embodiment of the present application, please refer to Figures 1 to 5The aluminum foil CNC stretching forming mold also includes a trigger block 600 and a sensor 700; the trigger block 600 is respectively connected to the output shaft of the first servo motor 402 and the output shaft of the second servo motor 502; the sensor 700 is used to detect the rotation angle of the trigger block 600 and the first servo motor 402 and the second servo motor 502 are respectively communicated with the sensor 700. In this embodiment, the trigger block 600 is respectively fixedly mounted on the second rotating shaft 900 and the first rotating shaft 800 so as to be synchronized with the rotation speed and direction of the second cam 508 or the first cam 409.

[0036] According to the above structure provided in the present embodiment, the sensor 700 can control the rotation speed and direction of the first servo motor 402 or the second servo motor 502 which is communicated with the trigger block 600 by obtaining the rotation speed and direction, so that the moving distance of the die 202 and the punch 300 can be more accurately controlled, which is not only conducive to further improving the forming quality of the aluminum foil CNC stretching forming mold in the present embodiment, but also conducive to further improving the convenient maintenance effect of the aluminum foil CNC stretching forming mold in the present embodiment.

[0037] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A CNC stretching die for aluminum foil, characterized in that: include: A main frame (100) is formed with a bottom plate (101) and a top plate (102) which are spaced apart and face each other; A mold (200) is arranged on a side of the top plate (102) away from the bottom plate (101), the mold (200) comprising a lower mold plate (201) and a concave mold (202) which are arranged in a matching manner, the lower mold plate (201) being connected to the top plate (102), and the concave mold (202) forming a mold cavity (203) for molding a target aluminum foil at one end facing the lower mold plate (201); A punch (300) passes through the lower mold plate (201) and the top plate (102) and is capable of extending into the mold cavity (203); A first driving mechanism, comprising a lower sub-frame (401) and a first servo motor (402) mounted on the lower sub-frame (401), the lower sub-frame (401) being connected to a side of the bottom plate (101) away from the top plate (102), the first servo motor (402) being drivingly connected to the concave die (202) and used for driving the concave die (202) to move closer to or away from the lower die plate (201); The second driving mechanism comprises an upper sub-frame (501) and a second servo motor (502) mounted on the main frame (100), wherein the upper sub-frame (501) is connected to the top plate (102) and is located between the bottom plate (101) and the top plate (102), and the second servo motor (502) is drivingly connected to the punch (300) and is used to drive the punch (300) to move closer to or away from the die (202).

2. The aluminum foil CNC stretching forming die according to claim 1, characterized in that: The mold (200) further comprises an upper mold plate (204) connected to the concave mold (202), and the first driving mechanism further comprises a first pull rod (403), a first spring (404), a floating bottom plate (405), a lower floating base (406), a lower roller shaft (407), a first roller (408) and a first cam (409); The first pull rod (403) slides through the top plate (102) and the bottom plate (101) and is capable of moving along its own axial direction; the upper template (204) and the movable bottom plate (101) are connected to the two ends of the first pull rod (403); the first spring (404) is sleeved on the first pull rod (403) and the two ends of the first spring (404) are respectively abutted against the top plate (102) and the upper template (204); the lower floating base (406) is connected to the floating bottom plate (405); and the lower roller shaft (407) is horizontally placed on the lower floating base ( 406), the first roller (408) is coaxially rotatably mounted on the lower roller shaft (407), the first cam (409) is arranged in the lower sub-frame (401) and is slewingly supported by the lower sub-frame (401) and is coaxially connected to the output shaft of the first servo motor (402), the first roller (408) is located below the first cam (409) and is in contact with the first cam (409) and can be driven by the first cam (409), and the moving direction of the first roller (408) is parallel to the axial direction of the first pull rod (403).

3. The aluminum foil CNC stretching forming die according to claim 2, characterized in that: The first driving mechanism further comprises a bearing (410) sleeved on the lower roller shaft (407); the lower sub-frame (401) is provided with a U-shaped groove (411) adapted to the bearing (410) and opening toward the floating bottom plate (405); The bearing (410) is slidably disposed in the U-shaped groove (411), and the sliding direction of the bearing (410) in the U-shaped groove (411) is parallel to the axial direction of the pull rod.

4. The aluminum foil CNC stretching forming die according to claim 2 or 3, characterized in that: A plurality of accommodating cavities (412) arranged at intervals are formed on the lower floating base (406); The lower roller shaft (407) passes through a plurality of the accommodating cavities (412) in sequence and enables at least a portion of the first roller (408) to be disposed in the accommodating cavity (412).

5. The aluminum foil CNC stretching forming die according to claim 2, characterized in that: The first driving mechanism further comprises a die carrier plate (413), a pressing plate (414) and a second spring (415); The die carrier plate (413) is connected to the upper mold plate (204) and the die (202) is connected to the upper mold plate (204) via the die carrier plate (413); the pressing plate (414) is movably mounted on the die (202) and is spaced apart from the die carrier plate (413); and two ends of the second spring (415) are respectively in contact with the die carrier plate (413) and the pressing plate (414).

6. The aluminum foil CNC stretching forming die according to claim 5, characterized in that: The first driving mechanism further comprises a guide cylinder (416) and a tensioning bolt (417); The guide cylinder (416) passes through the die carrier plate (413) and is slidably connected to the die carrier plate (413); the tension bolt (417) passes through the center of the guide cylinder (416) and connects the guide cylinder (416) and the pressing plate (414); and the upper mold plate (204) is provided with an avoidance groove (418) for the guide cylinder (416) to move.

7. The aluminum foil CNC stretching forming die according to claim 1, characterized in that: The second driving mechanism further comprises a punch base plate (503), a guide rod (504), an upper floating base (505), an upper roller shaft (506), a second roller (507) and a second cam (508); The punch bottom plate (503) is connected to the punch (300) and is arranged on the upper and lower sides of the top plate (102) opposite to the lower template (201); the guide rod (504) is connected to the top plate (102) and passes through the punch bottom plate (503); the punch bottom plate (503) is also slidably connected to the guide rod (504) and the sliding direction of the punch bottom plate (503) relative to the guide rod (504) is parallel to the moving direction of the punch (300); the upper floating base (505) is connected to the lower end of the punch bottom plate (503); the upper roller shaft (506) is horizontally arranged on the upper floating base (505); 05), the second roller (507) is coaxially connected to the upper roller shaft (506), the second cam (508) is coaxially connected to the output shaft of the second servo motor (502) and the second roller (507) is arranged between the second cam (508) and the top plate (102), the second roller (507) is in contact with the second cam (508) and can be driven by the second cam (508), and the moving direction of the second roller (507) is parallel to the moving direction of the punch (300); the second cam (508) is slewingly supported by the upper sub-frame (501).

8. The aluminum foil CNC stretching forming die according to claim 7, characterized in that: The second driving mechanism further comprises a third spring (509); The surfaces opposite to each other of the punch bottom plate (503) and the top plate (102) are respectively recessed and cooperate to form a cavity for accommodating the third spring (509), and two ends of the third spring (509) are respectively in contact with the punch bottom plate (503) and the top plate (102).

9. The aluminum foil CNC stretching forming die according to claim 7 or 8, characterized in that: The second driving mechanism further comprises an oil baffle plate (510) connected to the bottom of the upper sub-frame (501); The oil baffle plate (510) is open on one side toward the top plate (102), and the punch base plate (503), the guide rod (504), the upper floating base (505), the upper roller shaft (506), the second roller (507) and the second cam (508) are all arranged between the oil baffle plate (510) and the top plate (102).

10. The aluminum foil CNC stretching forming die according to claim 1, characterized in that: The aluminum foil CNC stretching mold further includes a trigger block (600) and a sensor (700); The trigger block (600) is respectively drivingly connected to the output shaft of the first servo motor (402) and the output shaft of the second servo motor (502); The sensor (700) is used to detect the rotation angle of the trigger block (600), and the first servo motor (402) and the second servo motor (502) are respectively connected to the sensor (700) in communication.

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