Aluminum plate processing stamping forming die

Abstract

The invention discloses a stamping forming die for processing an aluminum plate, and relates to the technical field of stamping dies. During the stamping process, due to the softness of aluminum, uneven local stress distribution often leads to local over-stretching of the material, and the uneven stress distribution may cause deformation of the aluminum plate. In the existing stamping module, it is difficult for the aluminum plate to achieve ideal sliding conditions during the stamping process, and poor friction conditions may cause local over-deformation of the material, thereby causing tensile deformation and bulging. The invention effectively adjusts the metal stretching space through the setting of a compensation component, avoids excessive tensile deformation and bulging of the aluminum plate during the stamping process, and improves the forming quality and stability of the product. The compensation component monitors the metal stretching degree in real time and adjusts the position of the aluminum plate by extending and retracting a push rod, thereby alleviating the problem of aluminum plate breakage caused by excessive stress and ensuring the stability and continuity of the stamping process.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a stamping forming die for processing an aluminum plate. Background Art

[0002] Aluminum stamping dies are special tools used to stamp aluminum sheet materials. The development history of aluminum stamping dies can be traced back to the growing demand for aluminum alloy material processing. With the increasing demand for lightweight materials in the automotive industry, aluminum alloy materials have been widely used in the automotive manufacturing field, thus promoting the development of aluminum stamping dies.

[0003] In this regard, the patent document with announcement number CN218591634U discloses an aluminum plate stamping die, including a base and a first active bevel gear, a workbench is installed in the middle of the top of the base, and a stamping groove is opened at the top of the workbench, and a limit plate is distributed inside the stamping groove. By using the combination of the first motor, the first threaded rod, the bevel gear and the limit plate, the aluminum plate to be stamped can be limited, so as to prevent the aluminum plate from being offset in position during the subsequent stamping process, affecting the subsequent stamping process, when the first motor is working, the first active bevel gear drives the first driven bevel gear to rotate, and then the first threaded rod can be rotated under the rotation of the first driven bevel gear, and the threaded connection between the first threaded rod and the limit plate can realize the lateral movement of the limit plate, and then the limit plate is used to limit the aluminum plate to prevent it from shaking.

[0004] In this regard, the patent document with announcement number CN213496023U discloses a stamping die that is convenient for fixing workpieces, including a processing table, a support frame, a crossbeam, a hydraulic cylinder, a lower stamping die, an upper stamping die and a limit fixing structure, wherein the lower surface of the processing table is fixedly connected with a support foot, and both sides of the upper surface of the processing table are fixedly connected with one end of the support frame, and a crossbeam is fixedly connected between the other ends of the two support frames, and a hydraulic cylinder is fixedly installed on the lower surface of the crossbeam, and an upper stamping die is fixedly installed at the bottom end of the hydraulic cylinder, and a lower stamping die is fixedly installed on the upper surface of the processing table. The structure is reasonable and flexible to use. The metal sheet workpiece that needs to be stamped can be limited and fixed by the limit fixing structure, and the limit fixing structure can be flexibly adjusted to facilitate the limitation of plates of different sizes, which is suitable for punching and grooving processing.

[0005] During the stamping process, due to the softness of aluminum, uneven local stress distribution often leads to local over-stretching of the material. This uneven stress distribution may cause deformation of the aluminum plate. However, with existing stamping modules, it is difficult for the aluminum plate to achieve ideal sliding conditions during the stamping process. Poor friction conditions may cause local excessive deformation of the material, which in turn causes tensile deformation and bulging.

[0006] In view of the above problems, a stamping die for aluminum plate processing is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide an aluminum plate processing stamping forming die, which solves the problems of aluminum plate stamping stretching deformation and bulging in the background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: an aluminum plate processing stamping forming die, comprising a lower template, a middle template is arranged on the top surface of the lower template, an upper template is connected to the top surface of the middle template, an aluminum plate body is embedded in the lower template, and a discharge port is arranged on one side of the lower template;

[0009] A discharge assembly is embedded in the discharge port, and the discharge assembly includes an inclined plate. A mold cavity is opened in the lower mold plate, and a lifting frame is embedded in the mold cavity. A return spring is connected to the bottom end of the lifting frame. The lifting frame is connected to the inside of the mold cavity through the return spring, and one end of the inclined plate is arranged at the bottom end of the lifting frame;

[0010] A compensation component is arranged inside the lower template, and the compensation component includes a mounting seat, a mounting seat is embedded in the interior of the lower template, the top of the mounting seat is fixedly connected to an upper cross bar, the bottom end of the mounting seat is fixedly connected to a slide, a movable block is embedded in the interior of the upper cross bar, a push rod is connected between the mounting seat and the movable block, a limiting component is arranged inside the movable block, the limiting component includes a longitudinal slide groove, a longitudinal slide groove is arranged at the center position of the movable block, a support roller is embedded in the longitudinal slide groove, a compensation belt is connected to the outer surface of the support roller, meshing teeth are also arranged at both ends of the support roller, a limiting cover is arranged on the side of the movable block close to the meshing teeth, a support rod is also arranged on the side of the movable block, and another group of support rollers are connected to the end of the support rod, and the two groups of support rollers are connected by a compensation belt.

[0011] Preferably, a fixing rod is connected to the bottom end of the center template, the fixing rod is embedded in the interior of the lower template and maintains a sliding connection with the lower template support, and sealing pads are laid on the upper and lower surfaces of the center template.

[0012] Preferably, the lifting frame is configured as a frame structure, and the aluminum plate body is placed on the upper surface of the lifting frame.

[0013] Preferably, the inclined plate is movably connected to the discharge port, and in an initial state, the inclined plate is tiltedly arranged inside the discharge port.

[0014] Preferably, a through groove is provided inside the upper horizontal bar, the mounting seat is embedded in the through groove and slidably connected thereto, the movable block is embedded in the through groove and slidably connected thereto, and a sliding connection is also maintained between the bottom end of the movable block and the slide. In order to reduce the friction between the movable block and the slide, a lubricating liquid is applied to the upper surface of the slide.

[0015] Preferably, two groups of slides are provided, and the two groups of slides are pressed on the two side edges of the aluminum plate body. The mounting seat is embedded in the interior of the lower template and slides longitudinally between the lower template. As the lifting frame descends, the mounting seat is driven to descend.

[0016] Preferably, the meshing teeth and the limiting cover are matched, and the limiting cover is set to an arc shape. When the meshing teeth are fully embedded in the interior of the limiting cover, the heights of both ends of the compensation belt remain consistent. When the heights of both ends of the compensation belt remain consistent, they are pressed onto the upper surface of the aluminum plate body.

[0017] Preferably, a support spring is embedded in the interior of the longitudinal slide groove, the bottom end of the support spring is connected to a bonding sheet, the bottom end of the bonding sheet is connected to a support roller, and the bonding sheet is wrapped around the support roller.

[0018] Preferably, an anti-skid pad and a cleaning pad are arranged at intervals on the outer surface of the compensation belt. The cleaning pad is used to clean the surface of the aluminum plate body, and the anti-skid pad is used to increase the position of the aluminum plate body.

[0019] Preferably, the push rod is controlled by a control template, a computer transmits instructions to the control template, and the control template controls the telescopic distance and telescopic speed of the push rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides an aluminum plate processing stamping forming die, which effectively adjusts the metal stretching space through the setting of a compensation component, avoids excessive stretching deformation and bulging of the aluminum plate during the stamping process, and improves the forming quality and stability of the product. The compensation component monitors the metal stretching degree in real time and adjusts the position of the aluminum plate by extending and retracting the push rod, thereby alleviating the problem of aluminum plate breakage caused by excessive stress and ensuring the stability and continuity of the stamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the lower template and the discharge port of the present invention;

[0024] Figure 3 It is a schematic diagram of the decomposition structure of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the lifting frame and the return spring of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the inclined plate and the lifting frame of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the lower template and the aluminum plate body of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the upper horizontal bar and the slide table of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the meshing teeth and the compensation belt of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the support rod and the bonding sheet of the present invention.

[0031] In the figure: 11, lower template; 12, middle template; 13, upper template; 14, aluminum plate body; 15, discharge port; 2, discharge assembly; 21, inclined plate; 22, mold cavity; 23, lifting frame; 24, return spring; 3, compensation assembly; 31, movable block; 32, upper horizontal bar; 33, slide; 34, mounting seat; 35, push rod; 36, meshing teeth; 37, limit cover; 38, compensation belt; 4, limit assembly; 41, support rod; 42, support spring; 43, fitting sheet; 44, longitudinal slide groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0034] Combination Figure 1-Figure 9The present invention discloses an aluminum plate processing stamping forming die, comprising a lower template 11, a middle template 12 is arranged on the top surface of the lower template 11, an upper template 13 is connected to the top surface of the middle template 12, a fixing rod is connected to the bottom end of the middle template 12, the fixing rod is embedded in the lower template 11, and is supported and maintained in sliding connection with the lower template 11, sealing pads are laid on the upper and lower surfaces of the middle template 12, an aluminum plate body 14 is embedded in the lower template 11, and a discharge port 15 is arranged on one side of the lower template 11;

[0035] In the processing of the aluminum plate, the required shape is manufactured by a stamping die. In the processing, the aluminum plate body 14 is first embedded in the lower template 11, and the upper template 13 is dropped by a hydraulic device. After the drop, the aluminum plate body 14 is squeezed and the aluminum plate is squeezed into the mold cavity 22, and then shaped;

[0036] However, aluminum is a relatively soft metal material, and its mechanical properties include lower yield strength and hardness, and higher ductility, which means that under stress, aluminum is more susceptible to plastic deformation and stretching, and does not resist deformation like hard materials. However, during the stamping process, due to the softness of aluminum, uneven local stress distribution often leads to local over-stretching of the material. This uneven stress distribution may cause deformation of the aluminum plate, especially in punching or complex forming areas, where tensile deformation and bulging are prone to occur. In order to solve this problem, the problem of uneven stress distribution is solved by setting the discharge component 2, the compensation component 3 and the limit component 4 to avoid excessive tensile deformation and bulging. The specific operations are as follows:

[0037] The discharge port 15 is embedded with a discharge assembly 2, and the discharge assembly 2 includes an inclined plate 21, and the inclined plate 21 and the discharge port 15 are movably connected. In the initial state, the inclined plate 21 is tiltedly arranged inside the discharge port 15, and a mold cavity 22 is opened inside the lower mold plate 11. A lifting frame 23 is embedded inside the mold cavity 22. The lifting frame 23 is arranged in a frame structure, and the aluminum plate body 14 is placed on the upper surface of the lifting frame 23. The bottom end of the lifting frame 23 is connected to a return spring 24, and the lifting frame 23 is connected to the inside of the mold cavity 22 through the return spring 24. One end of the inclined plate 21 is arranged at the bottom end of the lifting frame 23;

[0038] After the aluminum plate is stamped, the formed aluminum workpiece can be transported out through the inclined plate 21. When the upper template 13 descends, the force causes the aluminum plate body 14 to be embedded into the interior of the mold cavity 22, thereby forming the workpiece. At the same time, the lifting frame 23 also descends and fits onto the mold cavity 22. When the upper template 13 rises after one stamping is completed, after losing the constraint of the force, the lifting frame 23 is reset with the support of the reset spring 24. At this time, the lifting frame 23 will rise, driving the aluminum workpiece out of the mold cavity 22. After detachment, the workpiece can slide out of the mold cavity 22 along the inclined design of the inclined plate 21.

[0039] During the stamping process, if the aluminum plate is fixed, the aluminum plate will break due to the metal stretching during stamping, which will lead to incompleteness of the workpiece. If it is not fixed, the position of the aluminum plate cannot be limited. At this time, the aluminum plate will not be able to reach the ideal stamping position due to shaking during stamping, which will cause gaps in some aluminum workpieces and easily produce defective products. In order to solve this problem, compensation is performed on the basis of over-fixation through the compensation component 3 to give space for metal stretching. The specific operation is as follows:

[0040] A compensation component 3 is provided inside the lower template 11, and the compensation component 3 includes a mounting seat 34. The mounting seat 34 is embedded inside the lower template 11, and the top of the mounting seat 34 is fixedly connected to the upper cross bar 32, and the bottom of the mounting seat 34 is fixedly connected to the slide 33. A movable block 31 is embedded inside the upper cross bar 32, and a through groove is provided inside the upper cross bar 32. The movable block 31 is embedded inside the through groove and slidably connected with the through groove. The bottom end of the movable block 31 and the slide 33 also maintain a sliding connection. In order to reduce the friction between the movable block 31 and the slide 33, a lubricant is applied to the upper surface of the slide 33. The setting of the lubricating liquid can make the movable block 31 slide more smoothly on the slide 33 to avoid jamming, so that the extension and retraction speed of the push rod 35 can be better controlled. The slide 33 is provided with two groups. The two groups of slides 33 are pressed on the two side edges of the aluminum plate body 14. The mounting seat 34 is embedded in the lower template 11 and slides longitudinally between the lower template 11. As the lifting frame 23 descends, the mounting seat 34 is driven to descend. A push rod 35 is connected between the mounting seat 34 and the movable block 31. The push rod 35 is controlled by the control template. The computer transmits instructions to the control template, and the control template controls the extension and retraction of the push rod 35 The movable block 31 has a limit assembly 4 inside, and the limit assembly 4 includes a longitudinal slot 44. The movable block 31 has a longitudinal slot 44 at its center, and a support roller is embedded inside the longitudinal slot 44. The outer surface of the support roller is connected to a compensation belt 38. Meshing teeth 36 are also provided at both ends of the support roller. A limit cover 37 is provided on one side of the movable block 31 close to the meshing teeth 36. The meshing teeth 36 and the limit cover 37 are matched. The limit cover 37 is set in an arc shape. When the meshing teeth 36 are fully embedded in the limit cover 37, the heights of the two ends of the compensation belt 38 remain consistent. The compensation belt 38 When the heights of the two ends are kept consistent, they are pressed onto the upper surface of the aluminum plate body 14. A support rod 41 is also provided on the side of the movable block 31. The end of the support rod 41 is connected to another set of support rollers. The two sets of support rollers are connected by a compensation belt 38. Anti-skid pads and cleaning pads are arranged at intervals on the outer surface of the compensation belt 38. The cleaning pad is used to clean the surface of the aluminum plate body 14, and the anti-skid pad is used to increase the position of the aluminum plate body 14. A support spring 42 is embedded in the interior of the longitudinal slide groove 44. The bottom end of the support spring 42 is connected to a bonding sheet 43. The bottom end of the bonding sheet 43 is connected to the support roller, and the bonding sheet 43 is wrapped around the support roller.

[0041] After the aluminum plate body 14 is embedded in the lower template 11, the upper surface of the aluminum plate body 14 is first pressed by the slide 33, and the aluminum plate body 14 is embedded between the slide 33 and the lifting frame 23. The slide 33 and the lifting frame 23 preliminarily restrict the position of the aluminum plate body 14 to prevent the aluminum plate body 14 from running off when being pushed. When the hydraulic equipment drives the upper template 13 to descend, the force is first transmitted to the middle template 12. When the middle template 12 descends, it drives the side of the compensation belt 38 close to the meshing teeth 36 to descend, wherein the compensation belt 38 is supported by two groups of support rollers, namely the first support roller and the second support roller, the first support roller is embedded in the longitudinal slide groove 44, and the second support roller is fixedly connected to the end of the support rod 41;

[0042] When the upper template 13 descends, it squeezes the first support roller, causing the first support roller to descend, and after the descent, the meshing teeth 36 are driven to descend. As the meshing teeth 36 are completely embedded in the interior of the limit cover 37, the heights of the two ends of the compensation belt 38 remain the same, and the bottom surface of the compensation belt 38 just fits on the aluminum plate body 14. At this time, the position of the aluminum plate body 14 is restricted by the compensation belt 38. When the upper template 13 descends, the surface of the aluminum plate body 14 is stretched to a large extent. In order to avoid excessive stretching and fracture of aluminum metal, the aluminum material is compensated as follows:

[0043] After the position of the aluminum plate body 14 is limited by the compensation belt 38, the upper template 13 is stamped. In this process, the stretching degree of the metal is monitored by the metal stress monitoring sensor, and the push rod 35 is driven to extend and retract. The push rod 35 controls the sliding of the movable block 31 inside the upper horizontal bar 32, and drives the first support roller embedded in the longitudinal slide groove 44 during the sliding. At the same time, the movement of the movable block 31 will also drive the support rod 41 to move. When the support rod 41 moves synchronously, the second support roller is also displaced. At this time, the compensation belt 38 is translated. During the translation process, the compensation belt 38 contacts the surface of the aluminum plate body 14, and pushes the aluminum material at one end distance in the moving direction under the action of friction. At this time, under the compensation of the aluminum material, the stretching process is subjected to stress and changes. The extension distance of the push rod 35 is controlled to control the aluminum material to be transported to the stamping area for a certain distance. The aluminum plate fracture caused by excessive stress is relieved according to the extension and retraction speed of the push rod 35, thereby achieving an ideal stamping effect.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die for processing an aluminum plate, comprising a lower die plate (11), characterized in that: The top surface of the lower template (11) is provided with a middle template (12), the top surface of the middle template (12) is connected to the upper template (13), an aluminum plate body (14) is embedded inside the lower template (11), and a discharge port (15) is provided on one side of the lower template (11); A discharge assembly (2) is embedded in the discharge port (15), the discharge assembly (2) comprises an inclined plate (21), a mold cavity (22) is provided in the lower mold plate (11), a lifting frame (23) is embedded in the mold cavity (22), a return spring (24) is connected to the bottom end of the lifting frame (23), the lifting frame (23) is connected to the inside of the mold cavity (22) via the return spring (24), one end of the inclined plate (21) is arranged at the bottom end of the lifting frame (23), the lifting frame (23) is arranged in a frame structure, and the aluminum plate body (14) is placed on the upper surface of the lifting frame (23); A compensation component (3) is arranged inside the lower template (11), and the compensation component (3) includes a mounting seat (34). The mounting seat (34) is embedded inside the lower template (11). The top end of the mounting seat (34) is fixedly connected to an upper horizontal bar (32), and the bottom end of the mounting seat (34) is fixedly connected to a slide table (33). A movable block (31) is embedded inside the upper horizontal bar (32). A push rod (35) is connected between the mounting seat (34) and the movable block (31). A limit position component (4) is provided inside the movable block (31), and the limit position component (4) includes a longitudinal slide groove (44). A longitudinal slide groove (44) is provided at the center of the movable block (31), and a support is embedded inside the longitudinal slide groove (44). The supporting roller is provided with a compensation belt (38) connected to the outer surface of the supporting roller, meshing teeth (36) are also provided at both ends of the supporting roller, a limiting cover (37) is provided on one side of the movable block (31) close to the meshing teeth (36), a supporting rod (41) is also provided on the side of the movable block (31), and another group of supporting rollers is connected to the end of the supporting rod (41), and the two groups of supporting rollers are connected by the compensation belt (38), the meshing teeth (36) and the limiting cover (37) are matched, and the limiting cover (37) is set to be an arc shape, and when the meshing teeth (36) are completely embedded in the limiting cover (37), the heights of the two ends of the compensation belt (38) are consistent, and when the heights of the two ends of the compensation belt (38) are consistent, they are pressed onto the upper surface of the aluminum plate body (14).

2. The aluminum plate processing stamping die according to claim 1, characterized in that: The bottom end of the middle template (12) is connected to a fixing rod, which is embedded in the lower template (11) and is supported by the lower template (11) to maintain a sliding connection, and the upper and lower surfaces of the middle template (12) are both paved with sealing pads.

3. The aluminum plate processing stamping die according to claim 1, characterized in that: The inclined plate (21) and the discharge port (15) are movably connected, and in an initial state, the inclined plate (21) is tiltedly arranged inside the discharge port (15).

4. The aluminum plate processing stamping die according to claim 1, characterized in that: A through groove is formed inside the upper horizontal bar (32), and the movable block (31) is embedded in the through groove and slidably connected to the through groove. The bottom end of the movable block (31) and the slide table (33) are also slidably connected. In order to reduce the friction between the movable block (31) and the slide table (33), a lubricating liquid is applied to the upper surface of the slide table (33).

5. The aluminum plate processing stamping die according to claim 1, characterized in that: The slides (33) are provided in two groups, and the two groups of slides (33) are pressed onto the two side edges of the aluminum plate body (14). The mounting seat (34) is embedded in the lower template (11) and slides longitudinally between the lower template (11). As the lifting frame (23) descends, the mounting seat (34) is driven to descend.

6. The aluminum plate processing stamping die according to claim 1, characterized in that: A support spring (42) is embedded in the longitudinal slide groove (44), the bottom end of the support spring (42) is connected to a bonding sheet (43), the bottom end of the bonding sheet (43) is connected to a support roller, and the bonding sheet (43) is wrapped around the support roller.

7. The aluminum plate processing stamping die according to claim 6, characterized in that: The outer surface of the compensation belt (38) is provided with an anti-skid pad and a cleaning pad at intervals, the cleaning pad is used to clean the surface of the aluminum plate body (14), and the anti-skid pad is used to increase the position of the aluminum plate body (14).

8. The aluminum plate processing stamping die according to claim 1, characterized in that: The push rod (35) is controlled by a control template. A computer transmits instructions to the control template, and the control template controls the telescopic distance and telescopic speed of the push rod (35).

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