Efficient stamping die for aluminum alloy upper cover

Abstract

The invention discloses an efficient stamping die for an aluminum alloy upper cover, which comprises a lower base plate and a lower support plate mounted on the upper surface of the lower base plate, the shell further comprises a body, linear flanging parts and corner flanging parts, wherein the lower surface of the body can be in contact with the surface of the lower supporting plate; the linear flanging parts are bent downwards from the edges of the four sides of the body; the corner flanging parts are bent downwards from the four corners of the body; the outer sides of the four side surfaces of the lower supporting plate are each movably provided with a linear forming male die corresponding to a linear flanging part on a shell, and the outer side of each linear forming male die is correspondingly provided with a movable linear forming female die. At least one movable block capable of moving in the vertical direction is arranged on the outer side of each forming female die. According to the stamping die, installation of the shell is facilitated, synchronous stamping forming of the flanging part in the circumferential direction of the shell is achieved, the production efficiency is improved, the stress balance and stability of the shell are improved, and the quality of a final product and the consistency of the stamping effect are guaranteed.

Description

Technical Field

[0001] The invention relates to a high-efficiency stamping die for an aluminum alloy upper cover and belongs to the field of electronic product processing. Background Art

[0002] The processing of stamping parts often requires multiple stamping processes to complete. According to the shape, size, raw materials and other factors of the stamping parts, it can be roughly divided into separation process and forming process. Among them, the forming process is the process of obtaining parts with certain shape, size and precision requirements by plastic deformation of the material without breaking. Bending, stretching, flanging, bulging, shaping, etc. all use forming processes.

[0003] In the prior art, when stamping the flanged parts of some metal shells in the full circumferential direction, the stamping is usually performed sequentially, which is slow and has low production efficiency. In addition, during multiple stamping processes, the stamped parts are subjected to different forces, resulting in different stamping effects, and the force balance of the stamped parts and the quality of the products cannot be guaranteed. Summary of the invention

[0004] The purpose of the present invention is to provide an all-round, efficient stamping die for an aluminum alloy upper cover, which is convenient for the installation of the shell and realizes the synchronous stamping forming of the flange portion of the shell in the all-round direction, thereby improving the production efficiency and improving the balance and stability of the force on the shell, thereby ensuring the quality of the final product and the consistency of the stamping effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an efficient stamping die for an aluminum alloy upper cover, used for processing a shell, comprising: a lower base plate and a lower support plate installed on the upper surface of the lower base plate, the shell further comprising: a body whose lower surface can contact the surface of the lower support plate, and a straight flange portion bent downward from the edges of the four sides of the body portion and a corner flange portion bent downward from the four corners of the body, the outer sides of the four side surfaces of the lower support plate are each movably provided with a straight line forming convex die corresponding to the straight line flange portion on the shell, and the outer side of each of the straight line forming convex dies is correspondingly provided with a movable A linear forming die, an L-shaped forming convex die corresponding to the corner flange portion on the shell body can be movably arranged on the outer side of the four corners of the lower support plate and between any two adjacent linear forming convex dies, and a movable L-shaped forming concave die is correspondingly arranged on the outer side of each L-shaped forming convex die, and the mutually matched forming convex die and forming concave die can move toward each other, so as to form an arc-shaped outer convex surface on the flange portion of the shell body, and the forming convex die and forming concave die are each movably mounted on the lower base plate by at least one slide rail, and the mutually matched forming convex die and forming concave die are mounted on the same slide rail; The upper surface of the lower base plate is provided with a plurality of through holes, and the upper ends of a plurality of insert knives movable in the vertical direction pass through the through holes accordingly, and the upper end of each of the insert knives facing the side surface of the linear forming punch has a first inclined surface, and the lower end of each of the linear forming punches facing the side surface of the lower support plate has a second inclined surface corresponding to the first inclined surface, and the second inclined surface is in sliding contact with the first inclined surface located below it, and the lower parts of the first inclined surface and the second inclined surface extend in a direction away from the lower support plate, and a bevel area is formed on the end surface of the L-shaped forming punch facing the corner of the lower support plate, and both ends of each of the linear forming punches have a bevel area in sliding contact with the bevel area The driving inclined plane area of ​​each molding die is provided with at least one movable block movable in the vertical direction, and a plurality of springs in a compressed state are installed between the molding convex mold and the corresponding molding die, so that the surface of the molding die opposite to the molding convex mold is in contact with the surface of the movable block facing the molding die, and the surface of the movable block opposite to the molding die is a slope surface, and the upper end of the slope surface extends away from the molding die, and a guide plate is installed on the upper surface of the lower substrate and located on the outer side of the molding die, and a guide groove is provided on the guide plate for the movable block to be embedded in the guide groove, and the guide groove faces the inner wall of the molding die and slides with the slope surface on the movable block.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, the guide groove is configured as a dovetail groove.

[0007] 2. In the above solution, an upper support plate movable in the vertical direction is arranged above the lower support plate, and a plurality of push blocks corresponding to the movable blocks are installed on the lower surface of the upper support plate.

[0008] 3. In the above solution, the angle formed between the moving direction of each movable L-shaped forming punch and the moving direction of the adjacent straight line forming punch is 45°.

[0009] 4. In the above scheme, the two end faces of the L-shaped forming punch are respectively parallel to the end face of one end of an adjacent straight forming punch, and a notch groove is provided on the end faces at both ends of each of the L-shaped forming punches, one inner side surface of the notch groove forms the driving bevel area, and the other inner side surface is parallel to its own end face and can slide in contact with the end face of the L-shaped forming punch.

[0010] 5. In the above solution, each forming convex die and / or each forming concave die is provided with a groove for embedding one end of the spring.

[0011] 6. In the above scheme, the lower end of each of the inserts passes through the through hole on the lower base plate and is connected to the same movable plate arranged directly below the lower base plate, and the lower surface of the movable plate movable in the vertical direction is connected to the piston rod of at least one cylinder.

[0012] 7. In the above solution, a bottom plate is fixedly mounted on the lower surface of the lower base plate, and a movable groove is provided on the upper surface of the bottom plate for the movable plate to be embedded in.

[0013] 8. In the above solution, a bottom base plate is spaced apart below the bottom plate, and the cylinder is fixedly mounted on the upper surface of the bottom base plate.

[0014] 9. In the above solution, the upper surface of the base substrate and the lower surface of the bottom plate are connected by a plurality of support bars.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The high-efficiency stamping die of the aluminum alloy upper cover of the present invention has a forming convex die and a forming concave die that cooperate with each other and can move toward each other, so as to form an arc-shaped outer convex surface on the flange portion of the shell, and the forming convex die and the forming concave die are each movably mounted on the lower base plate through at least one slide rail, and the forming convex die and the forming concave die that cooperate with each other are mounted on the same slide rail, and the upper surface of the lower base plate is provided with a plurality of through holes, and the upper ends of a plurality of insert knives that can move in the vertical direction pass through the through holes correspondingly, and each insert knives faces the upper end of the side surface of the linear forming convex die. Each of the L-shaped forming convex molds has a first inclined surface, and the lower end of each linear forming convex mold facing the lower support plate has a second inclined surface corresponding to the first inclined surface, the second inclined surface is in sliding contact with the first inclined surface located below it, and the lower parts of the first inclined surface and the second inclined surface extend in a direction away from the lower support plate. A inclined surface area is formed on the end surface of the L-shaped forming convex mold facing the corner of the lower support plate, and both ends of each linear forming convex mold have a driving inclined surface area in sliding contact with the inclined surface area, and the outer side of each forming concave mold is provided with at least one drive inclined surface area that can be moved in the vertical direction. The movable block is movable, and a plurality of springs in a compressed state are installed between the forming convex mold and the corresponding forming concave mold, so that the surface of the forming concave mold opposite to the forming convex mold is fitted with the surface of the movable block facing the forming concave mold, the surface of the movable block opposite to the forming concave mold is a slope surface, and the upper end of the slope surface extends in the direction away from the forming concave mold, and a guide plate is installed on the upper surface of the lower substrate and located on the outer side of the forming concave mold, and a guide groove for the movable block to be embedded is provided on the guide plate, and the guide groove is slidably matched with the slope surface on the movable block toward the inner wall of the forming concave mold, which is convenient for installing the flange part of the shell between the forming convex mold and the forming concave mold, and the linear forming convex mold in four directions and the L-shaped forming convex mold at four corners can be synchronously moved toward each other with the corresponding forming concave mold by moving the insert knife upward and moving the movable block downward, so as to realize the synchronous stamping forming of the flange part of the shell in the full circumference to obtain the required arc-shaped outer convex surface, which not only improves the production efficiency, but also improves the balance and stability of the force of the shell during the extrusion process, and ensures the quality of the final product and the consistency of the stamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a structural schematic diagram of the high-efficiency stamping die of the aluminum alloy upper cover of the present invention; Attached Figure 2 For attachment Figure 1 Schematic diagram of the cross section along AA; Attached Figure 3 For attachment Figure 2 The enlarged schematic diagram of point B in the middle; Attached Figure 4 For attachment Figure 2 The enlarged schematic diagram of the center C; Attached Figure 5 Schematic diagram of partial disassembly of the efficient stamping die of the aluminum alloy upper cover of the present invention Figure 1 ; Attached Figure 6 Schematic diagram of partial disassembly of the efficient stamping die of the aluminum alloy upper cover of the present invention Figure 2 ; Attached Figure 7 For attachment Figure 6 The enlarged schematic diagram of point D in the middle; Attached Figure 8 It is a schematic diagram of the shell of the high-efficiency stamping die for the aluminum alloy upper cover of the present invention.

[0017] In the above drawings: 100, shell; 101, body; 102, straight flanging portion; 103, corner flanging portion; 1, lower base plate; 2, lower support plate; 31, straight line forming punch; 32, L-shaped forming punch; 41, straight line forming die; 42, L-shaped die; 5, through hole; 6, insert knife; 71, first inclined surface; 72, second inclined surface; 8, spring; 9, slide rail; 10, movable plate; 11, cylinder; 12, bottom plate; 121, movable groove; 13, bottom base plate; 14, support bar; 15, avoidance through hole; 18, inclined surface area; 19, driving inclined surface area; 20, groove; 21, movable block; 22, slope surface; 23, guide plate; 24, guide groove; 25, upper support plate; 26, push block. Implementation

[0018] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0019] Embodiment 1: A high-efficiency stamping die for an aluminum alloy upper cover, used for processing a shell 100, comprising: a lower substrate 1 and a lower support plate 2 mounted on the upper surface of the lower substrate 1, the shell 100 further comprising: a body 101 whose lower surface can contact the lower support plate 2, a straight flange portion 102 bent downward from the edges of the 4 sides of the body portion 101, and a corner flange portion 103 bent downward from the 4 corners of the body 101, the outer sides of the four side surfaces of the lower support plate 2 are each movably provided with a straight line forming convex die 31 corresponding to the straight line flange portion 102 on the shell 100, and the outer side of each of the straight line forming convex dies 31 is correspondingly provided with a movably A movable linear forming die 41, an L-shaped forming convex die 32 corresponding to the corner flange portion 103 on the shell 100 can be movably provided on the outer side of the four corners of the lower support plate 2 and between any two adjacent linear forming convex dies 31, and a movable L-shaped forming die 42 is correspondingly provided on the outer side of each L-shaped forming convex die 32, and the mutually matched forming convex die and forming die can move toward each other, so as to form an arc-shaped outer convex surface on the flange portion of the shell, and the forming convex die and forming die are each movably mounted on the lower base plate 1 through at least one slide rail 9, and the mutually matched forming convex die and forming die are mounted on the same slide rail 9; When installing the shell, install the shell to be stamped on the lower support plate so that the lower surface of the upper body of the shell fits with the lower support plate and the upper surface of the forming punch, and the flange portion on the shell is embedded in the gap formed by the forming punch and the corresponding forming die under the action of the spring; The upper surface of the lower base plate 1 is provided with a plurality of through holes 5, and the upper ends of a plurality of insert knives 6 that can move in the vertical direction pass through the through holes 5 accordingly. The upper end of each of the insert knives 6 facing the side surface of the linear forming punch 3 has a first inclined surface 71, and the lower end of each of the linear forming punches 3 facing the side surface of the lower support plate 2 has a second inclined surface 72 corresponding to the first inclined surface 71. The second inclined surface 72 is in sliding contact with the first inclined surface 71 located below it, and the lower parts of the first inclined surface 71 and the second inclined surface 72 extend in the direction away from the lower support plate 2. A bevel area 18 is formed on the end surface of the L-shaped forming punch 32 facing the corner of the lower support plate 2, and both ends of each of the linear forming punches 31 have a bevel area 18 that slides with the bevel area 18 The driving inclined surface area 19 of dynamic contact, each of the molding dies is provided with at least one movable block 21 which can move in the vertical direction, and a plurality of springs in a compressed state are installed between the molding punch and the corresponding molding die, so that the surface of the molding die opposite to the molding punch fits with the surface of the movable block 21 facing the molding die, the surface of the movable block 21 opposite to the molding die is a slope surface 22, and the upper end of the slope surface 22 extends away from the molding die, the upper surface of the lower substrate 1 is provided with a guide plate 23 located on the outer side of the molding die, the guide plate 23 is provided with a guide groove 24 for the movable block 21 to be embedded, and the guide groove 24 faces the inner wall of the molding die and slides with the slope surface 22 on the movable block 21.

[0020] The guide groove 24 is configured as a dovetail groove.

[0021] An upper support plate 25 movable in the vertical direction is arranged above the lower support plate 2, and a plurality of push blocks 26 corresponding to the movable blocks 21 are installed on the lower surface of the upper support plate 25; In the initial state, the plunger that can move up and down under the drive of the cylinder is located at the lowest end of its stroke, the push block is set away from the movable block, and the movable block is located at the uppermost end of its formation. At this time, the forming convex molds in the four directions and at the four corners form a certain gap with the corresponding forming concave molds under the action of the spring, and the second inclined surface on each linear forming convex mold always maintains a close fit with the first inclined surface on the corresponding plunger, the inclined surface area on each L-shaped forming convex mold is closely fitted with the driving inclined surface area on the corresponding linear forming convex mold, and the outer surface of each forming convex mold is kept in close fit with the corresponding movable block; While each forming punch moves outward, the upper support plate drives the push block to move downward, and the push block pushes the movable block to move downward in the guide groove. While the guide block moves downward, it is squeezed by the inclined inner wall of the guide groove that cooperates with the upper slope surface, thereby pushing the forming die to move in the direction of the corresponding forming punch, thereby realizing the synchronous movement of the forming punches in four directions and the corresponding forming die towards each other and squeezing the flanged portion embedded therebetween, and synchronously forming the required arc-shaped outer convex surfaces on the flanged portions in four directions.

[0022] The angle formed between the moving direction of each movable L-shaped forming punch 32 and the moving direction of the adjacent linear forming punch 31 is 45°.

[0023] The two end faces of the above-mentioned L-shaped forming punch 32 are respectively parallel to the end face of one end of an adjacent straight forming punch 31. A notch groove 191 is provided on the end faces at both ends of each of the L-shaped forming punches 32. One inner side surface of the notch groove 191 forms the driving bevel area 19, and the other inner side surface is parallel to its own end face and can be in sliding contact with the end face of the L-shaped forming punch 32.

[0024] Each of the above-mentioned forming convex molds and each of the forming concave molds is provided with a groove 20 for one end of the spring 8 to be embedded.

[0025] The lower end of each of the above-mentioned inserts 6 passes through the through hole 5 on the lower base plate 1 and is connected to the same movable plate 10 arranged directly below the lower base plate 1. The lower surface of the movable plate 10 that can move in the vertical direction is connected to the piston rod of at least one cylinder 11.

[0026] A bottom plate 12 is fixedly mounted on the lower surface of the lower base plate 1 , and a movable groove 121 is provided on the upper surface of the bottom plate 12 for the movable plate 10 to be inserted into.

[0027] A bottom base plate 13 is disposed below the bottom plate 12 , and the cylinder 11 is fixedly mounted on the upper surface of the bottom base plate 13 .

[0028] The upper surface of the bottom substrate 13 and the lower surface of the bottom plate 12 are connected via a plurality of support bars 14 .

[0029] Embodiment 2: A high-efficiency stamping die for an aluminum alloy upper cover, used for processing a shell 100, comprising: a lower substrate 1 and a lower support plate 2 mounted on the upper surface of the lower substrate 1, the shell 100 further comprising: a body 101 whose lower surface can contact the lower support plate 2, a straight flange portion 102 bent downward from the edges of the 4 sides of the body portion 101, and a corner flange portion 103 bent downward from the 4 corners of the body 101, the outer side of each of the four side surfaces of the lower support plate 2 is movably provided with a straight line forming convex die 31 corresponding to the straight line flange portion 102 on the shell 100, and the outer side of each of the straight line forming convex die 31 is correspondingly provided with a movably A movable linear forming die 41, an L-shaped forming convex die 32 corresponding to the corner flange portion 103 on the shell 100 can be movably provided on the outer side of the four corners of the lower support plate 2 and between any two adjacent linear forming convex dies 31, and a movable L-shaped forming die 42 is correspondingly provided on the outer side of each L-shaped forming convex die 32, and the mutually matched forming convex die and forming die can move toward each other, so as to form an arc-shaped outer convex surface on the flange portion of the shell, and the forming convex die and forming die are each movably mounted on the lower base plate 1 through at least one slide rail 9, and the mutually matched forming convex die and forming die are mounted on the same slide rail 9; The upper surface of the lower base plate 1 is provided with a plurality of through holes 5, and the upper ends of a plurality of insert knives 6 that can move in the vertical direction pass through the through holes 5 accordingly. The upper end of each of the insert knives 6 facing the side surface of the linear forming punch 3 has a first inclined surface 71, and the lower end of each of the linear forming punches 3 facing the side surface of the lower support plate 2 has a second inclined surface 72 corresponding to the first inclined surface 71. The second inclined surface 72 is in sliding contact with the first inclined surface 71 located below it, and the lower parts of the first inclined surface 71 and the second inclined surface 72 extend in the direction away from the lower support plate 2. A bevel area 18 is formed on the end surface of the L-shaped forming punch 32 facing the corner of the lower support plate 2, and both ends of each of the linear forming punches 31 have a bevel area 18 that slides with the bevel area 18 The driving inclined surface area 19 of dynamic contact, each of which is provided with at least one movable block 21 movable in the vertical direction on the outer side of the molding die, and a plurality of springs in a compressed state are installed between the molding convex mold and the corresponding molding die, so that the surface of the molding die opposite to the molding convex mold fits with the surface of the movable block 21 facing the molding die, the surface of the movable block 21 opposite to the molding die is a slope surface 22, and the upper end of the slope surface 22 extends in the direction away from the molding die, and a guide plate 23 is installed on the upper surface of the lower substrate 1 and located on the outer side of the molding die, and a guide groove 24 is provided on the guide plate 23 for the movable block 21 to be embedded, and the guide groove 24 faces the inner wall of the molding die and slides with the slope surface 22 on the movable block 21; The cylinder drives the movable plate to move up, and then the movable plate drives multiple inserting knives to move up synchronously with the same stroke. During this process, the first inclined surface of the inserting knife that slides with the second inclined surface on the linear forming punch simultaneously pushes the linear forming punches in four directions upward, and the linear forming punch limited by the slide rail cannot move up, so it can only move horizontally along the slide rail away from the outer side of the lower support plate, that is, in the direction of the corresponding linear forming concave die. The driving inclined surface areas on any two outwardly moving linear forming punches further push the inclined surface areas on the L-shaped forming punches between them, so that each L-shaped forming punch is synchronously moved outward along its corresponding slide rail toward the direction of the corresponding L-shaped forming concave die to extrude the flange portion embedded therein, and the L-shaped forming punch stamps the required arc-shaped outer convex surface on the flange portion of the shell before the linear forming punch. During this process, the driving inclined surface area on the linear forming punch slides relative to the inclined surface area on the L-shaped forming punch until the driving inclined surface area slides out of the inclined surface area; When the driving bevel area slides out of the bevel area, the linear forming punch continues to move outward, and the L-shaped forming punch is no longer moved under force, and the linear forming punch continues to squeeze the flange part embedded therein toward the corresponding forming die, so that the four linear forming punches synchronously realize the stamping of the flange part of the shell to form the required arc-shaped outer convex surface.

[0030] The guide groove 24 is configured as a dovetail groove.

[0031] The two end faces of the above-mentioned L-shaped forming punch 32 are respectively parallel to the end face of one end of an adjacent straight forming punch 31. A notch groove 191 is provided on the end faces at both ends of each of the L-shaped forming punches 32. One inner side surface of the notch groove 191 forms the driving bevel area 19, and the other inner side surface is parallel to its own end face and can be in sliding contact with the end face of the L-shaped forming punch 32.

[0032] Each of the above-mentioned forming dies is provided with a groove 20 for one end of the spring 8 to be embedded.

[0033] The lower end of each of the above-mentioned inserts 6 passes through the through hole 5 on the lower base plate 1 and is connected to the same movable plate 10 arranged directly below the lower base plate 1. The lower surface of the movable plate 10 that can move in the vertical direction is connected to the piston rod of at least one cylinder 11.

[0034] The upper end of the piston rod of each of the six cylinders 11 is connected to the lower surface of the movable plate 10 to drive the movable plate 10 to move in the vertical direction.

[0035] The lower support plate 2 is provided with a plurality of avoidance through holes 15 for the upper end of the inserting blade 6 to be inserted.

[0036] The inserting blades 6, the through holes 5 on the lower base plate 1 and the avoidance through holes 15 on the lower support plate 2 are all provided in six numbers.

[0037] The working principle of the present invention is as follows: In order to meet the needs of aesthetic appearance and subsequent assembly, it is necessary to further process the flanged portion around the notebook shell to obtain a curved convex surface; In the initial state, the plunger that can move up and down under the drive of the cylinder is located at the lowest end of its stroke, the push block is set away from the movable block, and the movable block is located at the uppermost end of its formation. At this time, the forming convex molds in the four directions and at the four corners form a certain gap with the corresponding forming concave molds under the action of the spring, and the second inclined surface on each linear forming convex mold always maintains a close fit with the first inclined surface on the corresponding plunger, the inclined surface area on each L-shaped forming convex mold is closely fitted with the driving inclined surface area on the corresponding linear forming convex mold, and the outer surface of each forming convex mold is kept in close fit with the corresponding movable block; The shell to be punched is mounted on the lower support plate, so that the lower surface of the upper body of the shell fits with the lower support plate and the upper surface of the forming punch, and the flange portion on the shell is embedded in the gap formed by the forming punch and the corresponding forming die under the action of the spring; The cylinder drives the movable plate to move up, and then the movable plate drives multiple inserting knives to move up synchronously with the same stroke. During this process, the first inclined surface of the inserting knife that slides with the second inclined surface on the linear forming punch simultaneously pushes the linear forming punches in four directions upward, and the linear forming punch limited by the slide rail cannot move up, so it can only move horizontally along the slide rail away from the outer side of the lower support plate, that is, in the direction of the corresponding linear forming concave die. The driving inclined surface areas on any two outwardly moving linear forming punches further push the inclined surface areas on the L-shaped forming punches between them, so that each L-shaped forming punch is synchronously moved outward along its corresponding slide rail toward the direction of the corresponding L-shaped forming concave die to extrude the flange portion embedded therein, and the L-shaped forming punch stamps the required arc-shaped outer convex surface on the flange portion of the shell before the linear forming punch. During this process, the driving inclined surface area on the linear forming punch slides relative to the inclined surface area on the L-shaped forming punch until the driving inclined surface area slides out of the inclined surface area; When the driving inclined surface area slides out of the inclined surface area, the linear forming punch continues to move outward, and the L-shaped forming punch is no longer moved by force, and the linear forming punch continues to squeeze the flange part embedded therein toward the corresponding forming die, so that the four linear forming punches can simultaneously stamp the flange part of the shell to form the required arc-shaped outer convex surface; When each forming convex die moves outward, the upper support plate drives the push block to move downward, and the push block pushes the movable block to move downward in the guide groove. When the guide block moves downward, it is squeezed by the inclined inner wall of the guide groove that matches the upper slope surface, thereby pushing the forming die to move in the direction of the corresponding forming convex die; thereby, the forming convex dies in four directions and the corresponding forming dies move synchronously toward each other and squeeze the flanged parts embedded therebetween, and the required arc-shaped outer convex surfaces are synchronously formed on the flanged parts in four directions; After one stamping is completed, the cylinder drives the inserting knife to move down and reset, the upper support plate drives the push block away from the movable block, and each forming punch is reset under the action of the spring to keep the second inclined surface on each forming punch always in close contact with the first inclined surface on the corresponding inserting knife, and a gap is formed between the forming punch and the corresponding forming die for the flange part on the shell to be embedded. The movable block is pushed away from the forming punch by the forming die and simultaneously slides upward along the inner wall of the guide groove to reset to the uppermost end of the stroke; Finally, the shell that has completed the stamping operation is removed and the next shell to be stamped is installed, and the cycle continues.

[0038] When the high-efficiency stamping die of the aluminum alloy upper cover is used, it is convenient to install the flange part of the shell between the forming punch and the forming die, and the linear forming punches in four directions and the L-shaped forming punches at four corners can be synchronously moved toward each other by moving the insert knife upward and the movable block downward, thereby realizing the synchronous stamping of the flange part of the shell in the full circumference to obtain the required arc-shaped outer convex surface, which not only improves the production efficiency, but also improves the balance and stability of the force of the shell during the extrusion process, and ensures the quality of the final product and the consistency of the stamping effect.

[0039] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient stamping die for an aluminum alloy upper cover, used for processing a housing (100), comprising: A lower base plate (1) and a lower support plate (2) mounted on the upper surface of the lower base plate (1), characterized in that: the shell (100) further comprises: a body (101) whose lower surface can be in contact with the lower support plate (2) surface, and a straight flange portion (102) bent downward from the edges of four sides of the body portion (101) and a corner flange portion (103) bent downward from four corners of the body (101), and the outer sides of the four side surfaces of the lower support plate (2) are each movably provided with a straight line forming convex mold (31) corresponding to the straight line flange portion (102) on the shell (100), and the outer side of each of the straight line forming convex molds (31) is correspondingly provided with a movable straight line forming concave mold (4 1), an L-shaped forming convex mold (32) corresponding to the corner flange portion (103) on the shell (100) is movably provided on the outer side of the four corners of the lower support plate (2) and between any two adjacent straight line forming convex molds (31), and a movable L-shaped forming concave mold (42) is correspondingly provided on the outer side of each L-shaped forming convex mold (32), and the mutually cooperating forming convex molds and forming concave molds can move toward each other, so as to form an arc-shaped outer convex surface on the flange portion of the shell, and the forming convex molds and forming concave molds are each movably mounted on the lower base plate (1) via at least one slide rail (9), and the mutually cooperating forming convex molds and forming concave molds are mounted on the same slide rail (9); The upper surface of the lower base plate (1) is provided with a plurality of through holes (5), and the upper ends of a plurality of insert knives (6) movable in the vertical direction pass through the through holes (5) accordingly. The upper end of the side surface of each insert knives (6) facing the linear forming convex mold (3) has a first inclined surface (71), and the lower end of the side surface of each linear forming convex mold (3) facing the lower support plate (2) has a second inclined surface (72) corresponding to the first inclined surface (71), and the second inclined surface (72) is in sliding contact with the first inclined surface (71) located below it, and the lower parts of the first inclined surface (71) and the second inclined surface (72) extend in a direction away from the lower support plate (2). The end surface of the L-shaped forming convex mold (32) facing the corner of the lower support plate (2) is formed with an inclined surface area (18), and both ends of each linear forming convex mold (31) have a second inclined surface (72) corresponding to the first inclined surface (71). The driving inclined surface area (19) is in sliding contact with the surface area (18), and at least one movable block (21) that can move in the vertical direction is arranged on the outer side of each of the molding dies. A plurality of springs in a compressed state are installed between the molding convex mold and the corresponding molding dies, so that the surface of the molding dies opposite to the molding convex mold fits with the surface of the movable block (21) facing the molding dies. The surface of the movable block (21) opposite to the molding dies is a slope surface (22), and the upper end of the slope surface (22) extends in a direction away from the molding dies. A guide plate (23) is installed on the upper surface of the lower base plate (1) and located on the outer side of the molding dies. A guide groove (24) is provided on the guide plate (23) for the movable block (21) to be embedded, and the guide groove (24) faces the inner wall of the molding dies and slidably fits with the slope surface (22) on the movable block (21).

2. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 1 is characterized in that: The guide groove (24) is configured as a dovetail groove.

3. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 1, characterized in that: An upper support plate (25) movable in a vertical direction is arranged above the lower support plate (2), and a plurality of push blocks (26) corresponding to the movable blocks (21) are mounted on the lower surface of the upper support plate (25).

4. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 1 is characterized in that: The included angle between the moving direction of each movable L-shaped forming convex die (32) and the moving direction of the adjacent straight line forming convex die (31) is 45°.

5. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 1 or 4, characterized in that: The two end faces of the L-shaped forming punch (32) are respectively parallel to the end face of one end of an adjacent straight forming punch (31), and a notch groove (191) is provided on the end faces at both ends of each of the L-shaped forming punches (32), one inner side face of the notch groove (191) forms the driving inclined surface area (19), and the other inner side face is parallel to its own end face and can be in sliding contact with the end face of the L-shaped forming punch (32).

6. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 1, characterized in that: Each forming convex die and / or each forming concave die is provided with a groove (20) for one end of the spring (8) to be embedded.

7. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 1, characterized in that: The lower end of each of the inserting knives (6) passes through a through hole (5) on the lower base plate (1) and is connected to a same movable plate (10) arranged directly below the lower base plate (1), and the lower surface of the movable plate (10) movable in the vertical direction is connected to the piston rod of at least one cylinder (11).

8. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 7, characterized in that: A bottom plate (12) is fixedly mounted on the lower surface of the lower base plate (1), and a movable groove (121) is provided on the upper surface of the bottom plate (12) for the movable plate (10) to be embedded.

9. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 8, characterized in that: A bottom base plate (13) is spaced apart below the bottom plate (12), and the cylinder (11) is fixedly mounted on the upper surface of the bottom base plate (13).

10. The high-efficiency stamping die for the aluminum alloy upper cover according to claim 9, characterized in that: The upper surface of the bottom substrate (13) and the lower surface of the bottom plate (12) are connected via a plurality of support bars (14).

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