A steel sheet positioning punching die

Abstract

This utility model discloses a steel sheet positioning punching die, relating to the field of steel plate punching technology. It includes a lower die base and an upper die base. A guide post is provided on the lower die base, and the upper die base is guided onto the guide post. An upper die core is provided on the upper die base, with a punch at its lower end. A lower die core, corresponding to the upper die core, is provided on the lower die base, with a clearance hole corresponding to the punch. Side limiting blocks are provided on both sides of the upper surface of the lower die core, restricting the left and right displacement of the sheet metal. A top limiting block is provided near the rear end of the upper surface of the lower die core, with a limiting opening on one side of its lower end. This limiting opening restricts the end of the sheet metal. During the punching process, because the end of the sheet metal is restricted by the limiting opening, it ensures that the sheet metal remains straight when placed on the lower die core, preventing the end of the sheet metal from warping during punching and causing deformation after punching. Furthermore, the two side limiting blocks prevent the sheet metal from shifting position, ensuring punching accuracy.

Description

Technical Field

[0001] This utility model relates to the field of steel plate punching technology, and in particular to a steel sheet positioning punching mold. Background Technology

[0002] According to the authorized patent CN214556753U, a stamping positioning mechanism for metal sheet parts: A stamping die is a special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). It is called a cold stamping die (commonly known as a cold stamping mold). As electronic products become smaller, the precision requirements for their internal components are also increasing. However, when existing stamping dies perform continuous punching, trimming, or slitting operations on parts, both the upper and lower dies are subjected to increased impact, causing the parts to shift position and thus affecting their precision.

[0003] According to the authorized patent CN216859011U, a punching and drilling device for metal sheets, punching and drilling are common processing steps in the manufacturing of metal sheets. However, in existing punching and drilling devices for metal sheets, if the positioning of the metal sheet is not secure during the punching and drilling process, errors in the size and position of the drilled holes will occur, resulting in poor quality of the processed metal parts that do not meet product quality requirements, and consequently, a high scrap rate for the metal sheets.

[0004] In summary, the current practice of punching metal sheets presents problems such as low punching accuracy and poor quality due to sheet displacement during the punching process. This is especially true when punching one end of long plates. Since only the end of the sheet to be punched is placed on the die while the other end is held manually, the sheet is prone to warping during the punching process. When the upper die punches, a strong impact is applied to one end of the sheet. If the end of the sheet is warped at this time, it will cause the sheet to deform and become unusable.

[0005] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel sheet positioning punching mold, comprising a lower mold base and an upper mold base, wherein a guide post is provided on the lower mold base, and the upper mold base is guided and disposed on the guide post;

[0008] The upper mold base is provided with an upper mold core, and a punch is provided at the lower end of the upper mold core. The lower mold base is provided with a lower mold core corresponding to the upper mold core, and a clearance hole corresponding to the punch is provided on the lower mold core.

[0009] Side limiting blocks are provided on both sides of the upper surface of the lower mold core. The two side limiting blocks can limit the left and right displacement of the plate. A top limiting block is provided near the rear end of the upper surface of the lower mold core. A limiting opening is opened on one side of the lower end of the top limiting block. The limiting opening can limit the end of the plate.

[0010] As a further embodiment of this utility model: both of the side limiting blocks protrude outwards from the outer side of the lower mold core and form an outer edge, and both of the outer edges are provided with screw holes; a first screw and a second screw are respectively provided on both sides of the front end of the lower mold core, and the first screw and the second screw are respectively threadedly connected to the two screw holes;

[0011] Both sides of the front end of the lower mold core are provided with fixing blocks, and bearing components are provided on the fixing blocks. The first screw and the second screw pass through the two bearing components respectively. Two guide blocks are provided on the side of the outer edge facing the lower mold core. The lower mold core is provided with guide grooves corresponding to the guide blocks. The guide blocks and guide grooves are connected in a guiding fit.

[0012] As a further embodiment of this utility model: the threads of the screw holes opened on the two outer edges are in opposite directions, and the threads of the first screw and the second screw are in opposite directions, and are threadedly connected to the corresponding screw holes;

[0013] A connecting sleeve is provided between the first screw and the second screw, and the two ends of the connecting sleeve are respectively fixed to the first screw and the second screw.

[0014] As a further embodiment of this utility model: the lower end of the upper mold core is provided with a U-shaped groove, and a buffer block is provided in the groove.

[0015] As a further embodiment of this utility model: a slider is provided at the lower end of the side limiting block, and a groove corresponding to the slider is provided on the lower mold core, and the slider and the groove are slidably connected.

[0016] As a further embodiment of this utility model: the lower end of the lower mold base has a material storage groove, the material storage groove is provided with a discharge port, and the clearance hole is connected to the discharge port.

[0017] Compared with the prior art, the beneficial effects of this technical solution are as follows: When punching a sheet metal part, one end of the sheet metal part is placed on the lower die core, and the end of the sheet metal part is inserted into the limiting hole opened at the lower end of the top limiting block. At the same time, the two sides of the sheet metal part are restricted by two side limiting blocks. At this time, the upper die base drives the upper die core to press down, and the punch performs punching and punching operations on the sheet metal part. The waste material generated by punching is discharged from the relief hole. During the punching process, since the end of the sheet metal part is restricted by the limiting hole, it can be ensured that the sheet metal part remains in a straight state when placed on the lower die core. This can prevent the end of the sheet metal part from lifting up during punching, which would cause the sheet metal part to deform after punching. In addition, the two side limiting blocks can prevent the position of the sheet metal part from shifting, thus ensuring the punching accuracy.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the lower mold core of this utility model;

[0023] Figure 4 This is a schematic diagram of the top limiting block of this utility model;

[0024] Figure 5 This is a schematic diagram of the upper mold core of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the lower mold base of this utility model;

[0026] Figure 7 This is a structural diagram of the plate component of this utility model when it is placed in the lower mold core;

[0027] The corresponding labels in the attached diagram are explained as follows:

[0028] 1. Lower mold base; 2. Upper mold base; 3. Guide pillar; 4. Upper mold core; 41. Groove; 5. Punch; 6. Lower mold core; 61. Relief hole; 62. Guide groove; 63. Sliding groove; 7. Side limiting block; 71. Outer edge; 72. Screw hole; 73. Guide block; 74. Slider; 8. Top limiting block; 81. Limiting port; 9. First screw; 10. Second screw; 11. Fixing block; 12. Bearing component; 13. Connecting sleeve; 14. Buffer block; 15. Material storage tank; 16. Discharge port. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-7 A steel sheet positioning punching die includes a lower die base 1 and an upper die base 2. A guide post 3 is provided on the lower die base 1, and the upper die base 2 is guided and disposed on the guide post 3.

[0031] The upper mold base 2 is provided with an upper mold core 4, and a punch 5 is provided at the lower end of the upper mold core 4. The lower mold base 1 is provided with a lower mold core 6 corresponding to the upper mold core 4, and a relief hole 61 corresponding to the punch 5 is provided on the lower mold core 6.

[0032] Side limiting blocks 7 are provided on both sides of the upper surface of the lower mold core 6. The two side limiting blocks 7 can limit the left and right displacement of the plate. A top limiting block 8 is provided on the upper surface of the lower mold core 6 near the rear end. A limiting opening 81 is opened on one side of the lower end of the top limiting block 8. The limiting opening 81 can limit the end of the plate.

[0033] Specifically, when punching the sheet metal, one end of the sheet metal is placed on the lower die core 6, and the end of the sheet metal is inserted into the limiting opening 81 at the lower end of the top limiting block 8. At the same time, the two sides of the sheet metal are restricted by the two side limiting blocks 7. At this time, the upper die base 2 drives the upper die core 4 to press down, and the punch 5 punches and punches the sheet metal. The waste generated by punching is discharged from the relief hole 61. During the punching process, since the end of the sheet metal is restricted by the limiting opening 81, it can be ensured that the sheet metal remains flat when placed on the lower die core 6. This can prevent the end of the sheet metal from lifting up during punching, which would cause the sheet metal to deform after punching. In addition, the two side limiting blocks 7 can prevent the position of the sheet metal from shifting, thus ensuring the punching accuracy.

[0034] Preferably, the upper mold base 2 is provided with a mounting column, which is used to connect with the hydraulic system, such as fixing the mounting column to the telescopic shaft of the hydraulic cylinder, so that the upper mold base 2 can be driven by the hydraulic system to perform mold closing and mold opening with the lower mold base 1.

[0035] Based on the above embodiments, it is further proposed that both side limiting blocks 7 protrude outward from the outer side of the lower mold core 6 and form an outer edge 71, and both outer edges 71 are provided with screw holes 72; a first screw 9 and a second screw 10 are respectively provided on both sides of the front end of the lower mold core 6, and the first screw 9 and the second screw 10 are respectively threaded to the two screw holes 72.

[0036] Fixing blocks 11 are provided on both sides of the front end of the lower mold core 6. Bearing components 12 are provided on the fixing blocks 11. The first screw 9 and the second screw 10 pass through the two bearing components 12 respectively. Two guide blocks 73 are provided on the side of the two outer edges 71 facing the lower mold core 6. The lower mold core 6 is provided with guide grooves 62 corresponding to the guide blocks 73. The guide blocks 73 and the guide grooves 62 are connected in a guiding fit.

[0037] Specifically, when dealing with plates of different widths, the first screw 9 and the second screw 10 can be rotated. By utilizing the threaded connection between the first screw 9 and the second screw 10 and the screw hole 72 on the outer edge 71, the two side limiting blocks 7 can be moved left and right. This allows the distance between the two side limiting blocks 7 to be adjusted to meet the need for limiting plates of different widths.

[0038] Two fixing blocks 11 are set at the front end of the lower mold core 6, and bearing components 12 are set in the fixing blocks 11. The first screw 9 and the second screw 10 are slidably connected to the two bearing components 12 respectively, so that the positions of the first screw 9 and the second screw 10 can be kept stable and avoid tilting during rotation, thus ensuring smooth thread transmission.

[0039] Furthermore, by providing a guide block 73 on the outer edge 71 and connecting it with the guide groove 62 on the lower mold core 6 for guiding engagement, the outer edge 71 and the side limiting block 7 can be prevented from rotating along with the rotation of the first screw 9 and the second screw 10, thus ensuring the smoothness of the screw drive.

[0040] Based on the above embodiments, it is further proposed that the threads of the screw holes 72 opened on the two outer edges 71 are in opposite directions, and the threads of the first screw 9 and the second screw 10 are in opposite directions, and are threadedly connected to the corresponding screw holes 72.

[0041] A connecting sleeve 13 is provided between the first screw 9 and the second screw 10, and the two ends of the connecting sleeve 13 are respectively fixed to the first screw 9 and the second screw 10.

[0042] Specifically, by setting the thread directions of the two screw holes 72 to opposite directions, and simultaneously setting the thread directions of the first screw 9 and the second screw 10 to opposite directions, and by threading the first screw 9 and the second screw 10 to the corresponding screw holes 72 respectively, and connecting the first screw 9 and the second screw 10 together using the connecting sleeve 13, the two side limit blocks 7 can be moved in relative or opposite directions by simply rotating the first screw 9 or the second screw 10, and the movement is synchronous, so as to facilitate the adjustment of the distance between the two side limit blocks 7.

[0043] Based on the above embodiments, it is further proposed that a slider 74 is provided at the lower end of the side limiting block 7, and a groove 63 corresponding to the slider 74 is provided on the lower mold core 6. The slider 74 and the groove 63 are slidably connected, which can further improve the stability of the side limiting block 7 when moving left and right.

[0044] Based on the above embodiments, it is further proposed that the lower end of the upper mold core 4 is provided with a U-shaped groove 41, and a buffer block 14 is provided in the groove 41.

[0045] Specifically, the buffer block 14 can cover the two side limiting blocks 7 and the top limiting block 8. Its coverage includes the maximum movable area of ​​the side limiting blocks 7. When the upper mold core 4 and the lower mold core 6 are closed, the buffer block 14 can reduce the hard collision between the upper mold core 4 and the side limiting blocks 7 and the top limiting block 8, and avoid damage to the parts.

[0046] Preferably, the buffer block 14 is made of rubber.

[0047] Furthermore, the lower mold base 1 has a material storage groove 15 at its lower end, and a discharge port 16 is provided on the material storage groove 15, with the clearance hole 61 connected to the discharge port 16.

[0048] After punch 5 punches holes in the plate, the waste generated will be discharged into the storage tank 15 through the clearance hole 61-discharge port 16. Both ends of the storage tank 15 are connected to the outside, and the workers can use push plates and other tools to push out the waste accumulated inside.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A piercing die for positioning a steel sheet, characterized by, It includes a lower mold base (1) and an upper mold base (2), wherein a guide post (3) is provided on the lower mold base (1), and the upper mold base (2) is guided and disposed on the guide post (3); The upper mold base (2) is provided with an upper mold core (4), and a punch (5) is provided at the lower end of the upper mold core (4). The lower mold base (1) is provided with a lower mold core (6) corresponding to the upper mold core (4), and a relief hole (61) corresponding to the punch (5) is provided on the lower mold core (6). The lower mold core (6) is provided with side limiting blocks (7) on both sides of its upper surface. The two side limiting blocks (7) can limit the left and right displacement of the plate. The lower mold core (6) is provided with a top limiting block (8) near the rear end. The top limiting block (8) has a limiting port (81) on one side of its lower end. The limiting port (81) can limit the end of the plate.

2. The steel sheet positioning and piercing die according to claim 1, wherein Both of the side limiting blocks (7) protrude outward from the outer side of the lower mold core (6) and form an outer edge (71), and both of the outer edges (71) are provided with screw holes (72); a first screw (9) and a second screw (10) are respectively provided on both sides of the front end of the lower mold core (6), and the first screw (9) and the second screw (10) are respectively threaded to the two screw holes (72); The lower mold core (6) has fixing blocks (11) on both sides of its front end. The fixing blocks (11) are provided with bearing components (12). The first screw (9) and the second screw (10) pass through the two bearing components (12) respectively. The two outer edges (71) are provided with guide blocks (73) on the side facing the lower mold core (6). The lower mold core (6) is provided with guide grooves (62) corresponding to the guide blocks (73). The guide blocks (73) and guide grooves (62) are connected in a guiding fit.

3. The piercing die for positioning a steel sheet according to claim 2, wherein The threads of the screw holes (72) opened on the two outer edges (71) are in opposite directions, and the threads of the first screw (9) and the second screw (10) are in opposite directions and are threadedly connected to the corresponding screw holes (72); A connecting sleeve (13) is provided between the first screw (9) and the second screw (10), and the two ends of the connecting sleeve (13) are respectively fixed to the second screw (10) of the first screw (9).

4. The piercing die for positioning a steel sheet according to claim 3, wherein The lower end of the upper mold core (4) is provided with a U-shaped slot (41), and a buffer block (14) is provided in the slot (41).

5. The steel sheet positioning and piercing die according to claim 3, wherein The side limiting block (7) is provided with a slider (74) at its lower end, and the lower mold core (6) is provided with a groove (63) corresponding to the slider (74). The slider (74) and the groove (63) are slidably connected.

6. The steel sheet positioning punching die according to any one of claims 1-5, characterized in that, The lower mold base (1) has a material storage groove (15) at its lower end, and a discharge port (16) is provided on the material storage groove (15). The clearance hole (61) is connected to the discharge port (16).

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