Sheet metal punch forming die

Abstract

The utility model discloses a sheet metal punch forming die which comprises an upper die which is arranged right above the middle of the upper end face of a workbench through a longitudinal displacement mechanism. The first station lower die and the second station lower die are the same in structure and are alternately matched with the upper die for stamping; the movable plate is connected with the workbench through a transverse displacement mechanism, and the first station lower die and the second station lower die are symmetrically arranged at the left end and the right end of the upper end face of the movable plate. By arranging the first station lower die and the second station lower die which are alternately matched with the upper die for stamping, when the first station lower die is located below the upper die for stamping, a metal plate can be placed on the second station lower die to wait for stamping; when the lower die of the second station is located below the upper die for stamping, a stamped part stamped on the lower die of the first station can be taken down, a new metal plate is put in, and the process is circulated in sequence, so that time waste caused by putting the metal plate into the single lower die and taking down the stamped part is reduced, and the stamping efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping equipment, and in particular relates to a metal plate stamping forming die. Background Art

[0002] Stamping uses a die to press metal sheets into various sheet-shaped parts and shell and container-like workpieces on a press. This type of forming process performed in a cold state is called cold stamping, or simply stamping. Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject the sheet material to deformation force in the die, thereby obtaining product parts of a certain shape, size and performance.

[0003] The die used for stamping is called a stamping die, or simply a die, which includes an upper die and a matching lower die. A die is a special tool for batch processing of metal sheets into the required stamping parts. Research has found that most of the existing dies are set up with an upper die and a lower die in a one-to-one correspondence, that is, the lower die is always located below the upper die. When working, the metal sheet is first placed on the lower die and then the stamping machine is started. As the upper die moves downward, the metal sheet is stamped. After the stamping is completed, the stamped parts are removed and new metal sheets are placed in, and the cycle continues. That is, the existing die needs to complete the stamping and remove the stamped parts before the next metal sheet placement operation can be performed. During this period, a lot of time is wasted, which seriously affects the stamping efficiency.

[0004] Based on the deficiencies in the prior art, the utility model discloses a metal sheet stamping forming die. By setting a first-station lower die and a second-station lower die which alternately cooperate with an upper die for stamping, when the first-station lower die is below the upper die for stamping, the metal sheet can be placed on the second-station lower die to wait for stamping; when the second-station lower die is below the upper die for stamping, the stamped parts stamped on the first-station lower die can be removed and new metal sheets can be placed, and the cycle is repeated in sequence, thereby reducing the time waste caused by placing metal sheets and removing stamped parts in a single lower die and improving the stamping efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a metal sheet stamping die to solve the technical problems raised in the background technology.

[0006] The utility model provides the following technical solutions:

[0007] A metal sheet stamping die, comprising

[0008] An upper mold, the upper mold is arranged at a position just above the middle of the end surface of the workbench through a longitudinal displacement mechanism;

[0009] A first station lower mold and a second station lower mold, the first station lower mold and the second station lower mold have the same structure and are alternately matched with the upper mold for stamping;

[0010] A movable plate is connected to the workbench through a lateral displacement mechanism, and the first station lower mold and the second station lower mold are symmetrically arranged at the left and right ends of the upper end surface of the movable plate.

[0011] Preferably, the longitudinal displacement mechanism includes a supporting guide rod arranged vertically upward, a top plate is arranged on the upper end of the supporting guide rod, an upper mold seat is arranged between the top plate and the workbench, a guide hole matched with the supporting guide rod is arranged on the edge of the upper mold seat, the top plate and the upper mold seat are connected by a stamping cylinder, and the upper mold is arranged in the middle position of the lower end surface of the upper mold seat.

[0012] Preferably, four supporting guide rods are provided, and the four supporting guide rods are respectively located at four corner positions of the upper mold base, and the four corner positions of the upper mold base are also respectively provided with guide holes corresponding to the four supporting guide rods.

[0013] Preferably, the lower end surface of the first station lower mold is connected to the movable plate through the first station lower mold seat, and the lower end surface of the second station lower mold is connected to the movable plate through the second station lower mold seat.

[0014] Preferably, positioning sleeves are respectively arranged vertically downward at the four corner positions of the lower end surface of the upper mold seat, first positioning columns adapted to the positioning sleeves are respectively arranged vertically upward at the four corner positions of the upper end surface of the lower mold seat of the first station, and second positioning columns adapted to the positioning sleeves are respectively arranged vertically upward at the four corner positions of the upper end surface of the lower mold seat of the second station.

[0015] Preferably, the upper ends of the first positioning column and the second positioning column are respectively provided with hemispherical transition heads, and a through hole is provided on the side surface of one end of the positioning sleeve close to the upper mold seat.

[0016] Preferably, a rectangular notch is provided on the upper end surface of the workbench along its length direction, grooves are provided on the front and rear inner walls of the rectangular notch along its length direction respectively, and the two lateral displacement mechanisms are symmetrically arranged inside the two grooves.

[0017] Preferably, the lateral displacement mechanism is arranged on a connecting block in the middle of the front and rear sides of the movable plate, and the left and right sides of the connecting block are respectively hinged with a first oil cylinder and a second oil cylinder, and the other ends of the first oil cylinder and the second oil cylinder are respectively hinged to the left and right inner walls of the groove.

[0018] Preferably, the lateral displacement mechanism also includes a guide rod arranged inside the groove, the axial direction of the guide rod is arranged along the length direction of the groove, and the two ends of the guide rod are respectively connected to the left and right inner walls of the groove, and a plurality of guide sleeves adapted to the guide rod are respectively arranged on the front and rear side surfaces of the movable plate.

[0019] Preferably, the bottom of the groove is provided with slide grooves along its length direction, and the end of the connecting block away from the movable plate is provided with a sliding block adapted to the slide groove.

[0020] Preferably, a plurality of rollers are provided on the lower end surface of the movable plate, and the plurality of rollers are evenly arranged in a rectangular array. A roller guide rail matching the rollers is provided at the bottom of the rectangular slot along its length direction, and a plurality of roller guide rails are provided, and the plurality of roller guide rails are evenly arranged at equal intervals along the front and rear width direction of the rectangular slot.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model discloses a metal sheet stamping forming die. By arranging a first station lower die and a second station lower die for alternately cooperating with an upper die for stamping, when the first station lower die is under the upper die for stamping, the metal sheet can be put on the second station lower die to wait for stamping; when the second station lower die is under the upper die for stamping, the stamped parts stamped on the first station lower die can be removed and new metal sheets can be put in, and the cycle is carried out in sequence, thereby reducing the time waste caused by putting in the metal sheet and removing the stamped parts of a single lower die and improving the stamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 It is a schematic diagram of the movable plate structure of the utility model.

[0026] Figure 3 It is a schematic diagram of the structure of the lateral displacement mechanism of the utility model.

[0027] Figure 4 This is a schematic diagram of the positioning sleeve structure of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. 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.

[0030] See also Figure 1-4 As shown, a metal sheet stamping die comprises

[0031] An upper mold 2, wherein the upper mold 2 is disposed at a position just above the middle of the upper end surface of the workbench 1 through a longitudinal displacement mechanism;

[0032] The first station lower mold 5 and the second station lower mold 6 have the same structure and are alternately cooperated with the upper mold 2 for stamping;

[0033] The movable plate 4 is connected to the workbench 1 through a lateral displacement mechanism, and the first station lower mold 5 and the second station lower mold 6 are symmetrically arranged at the left and right ends of the upper end surface of the movable plate 4. By setting the first station lower mold and the second station lower mold that are alternately matched with the upper mold for stamping, when the first station lower mold is under the upper mold during stamping, the metal sheet can be placed on the second station lower mold to wait for stamping, and when the second station lower mold is under the upper mold during stamping, the stamped parts stamped on the first station lower mold can be removed and new metal sheets can be placed, and the cycle is carried out in sequence, which reduces the time waste caused by placing metal sheets and removing stamped parts in a single lower mold, and improves stamping efficiency.

[0034] The longitudinal displacement mechanism includes a support guide rod 31 vertically arranged upward, a top plate 32 is arranged at the upper end of the support guide rod 31, an upper die seat 33 is arranged between the top plate 32 and the workbench 1, a guide hole matching the support guide rod 31 is arranged at the edge of the upper die seat 33, the top plate 32 and the upper die seat 33 are connected by a stamping oil cylinder 34, and the upper die 2 is arranged at the middle position of the lower end surface of the upper die seat 33. By controlling the operation of the stamping oil cylinder 34, the upper die seat 33 and the upper die 2 can be driven to move in the longitudinal direction.

[0035] There are four support guide rods 31, which are respectively located at the four corners of the upper mold base 33. The four corners of the upper mold base 33 are also respectively provided with guide holes corresponding to the four support guide rods 31. The stability of the upper mold base 33 during longitudinal movement is further improved, and the stamping effect is improved.

[0036] The lower end surface of the first station lower mold 5 is connected to the movable plate 4 through the first station lower mold seat 11, and the lower end surface of the second station lower mold 6 is connected to the movable plate 4 through the second station lower mold seat 12; the four corner positions of the lower end surface of the upper mold seat 33 are respectively provided with positioning sleeves 83 vertically downward, the four corner positions of the upper end surface of the first station lower mold seat 11 are respectively provided with first positioning columns 81 adapted to the positioning sleeves 83 vertically upward, and the four corner positions of the upper end surface of the second station lower mold seat 12 are respectively provided with second positioning columns 82 adapted to the positioning sleeves 83 vertically upward. The upper ends of the first positioning columns 81 and the second positioning columns 82 are respectively provided with hemispherical transition heads 84, and the positioning sleeve 83 is provided with a through hole 85 on the side surface of one end close to the upper mold seat 33. During stamping, as the upper mold base 33 moves downward, the positioning sleeve 83 can be driven to move downward. At this time, the first-station lower mold base 11 or the second-station lower mold base 12 is located directly below the upper mold base 33. As the positioning sleeve 83 continues to move downward, the first positioning column 81 or the second positioning column 82 is just located inside the positioning sleeve 83, further improving the stability and accuracy during stamping.

[0037] The upper end surface of the workbench 1 is provided with a rectangular notch 13 along its length direction, and the front and rear inner walls of the rectangular notch 13 are respectively provided with grooves 14 along its length direction, and the two lateral displacement mechanisms are symmetrically arranged inside the two grooves 14. The lateral displacement mechanism is arranged on a connecting block 71 at the middle position of the front and rear sides of the movable plate 4, and the left and right sides of the connecting block are respectively hinged with a first oil cylinder 72 and a second oil cylinder 73, and the other ends of the first oil cylinder 72 and the second oil cylinder 73 are respectively hinged with the left and right inner walls of the groove 14. As the two first oil cylinders extend, the two second oil cylinders contract, driving the movable plate to move right, so that the lower mold of the first station is just located below the upper mold, and as the two first oil cylinders contract, the two second oil cylinders extend, driving the movable plate to move left, so that the lower mold of the second station is just located below the upper mold.

[0038] The lateral displacement mechanism further includes a guide rod 101 disposed inside the groove 14, the axial direction of the guide rod is arranged along the length direction of the groove, and the two ends of the guide rod are respectively connected to the left and right inner walls of the groove, and a plurality of guide sleeves 102 adapted to the guide rod are respectively arranged on the front and rear side surfaces of the movable plate 4. The stability of the movable plate when moving left and right and the stability during stamping are improved.

[0039] The bottom of the groove 14 is provided with a slide groove 92 along its length direction, and the end of the connecting block 71 away from the movable plate 4 is provided with a slider 91 adapted to the slide groove 92, so as to further improve the stability of the movable plate when moving left and right and the stability during stamping.

[0040] The lower end surface of the movable plate 4 is provided with a plurality of rollers, which are evenly arranged in a rectangular array, and the bottom of the rectangular slot 13 is provided with roller guides adapted to the rollers along its length direction, and the plurality of roller guides are provided, and the plurality of roller guides are evenly arranged at equal intervals along the front and rear width direction of the rectangular slot 13. The stability of the movable plate when moving left and right and the stability during stamping are improved.

[0041] The above is only a preferred implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal sheet stamping die, characterized in that: include An upper mold (2), wherein the upper mold (2) is arranged at a position just above the middle of the upper end surface of the workbench (1) through a longitudinal displacement mechanism; A first-station lower mold (5) and a second-station lower mold (6), wherein the first-station lower mold (5) and the second-station lower mold (6) have the same structure and are alternately cooperated with the upper mold (2) for stamping; A movable plate (4), the movable plate (4) being connected to the workbench (1) via a lateral displacement mechanism, the first station lower mold (5) and the second station lower mold (6) being symmetrically arranged at left and right ends of the upper end surface of the movable plate (4).

2. A metal sheet stamping die according to claim 1, characterized in that: The longitudinal displacement mechanism comprises a support guide rod (31) arranged vertically upward, a top plate (32) being arranged at the upper end of the support guide rod (31), an upper die seat (33) being arranged between the top plate (32) and the workbench (1), a guide hole matching the support guide rod (31) being arranged at the edge of the upper die seat (33), the top plate (32) and the upper die seat (33) being connected via a stamping cylinder (34), and the upper die (2) being arranged at a middle position of the lower end surface of the upper die seat (33).

3. A metal sheet stamping die according to claim 2, characterized in that: Four support guide rods (31) are provided, and the four support guide rods (31) are respectively located at four corner positions of the upper mold base (33). The four corner positions of the upper mold base (33) are also respectively provided with guide holes corresponding to the four support guide rods (31).

4. The metal sheet stamping die according to claim 2, characterized in that: The lower end surface of the first station lower mold (5) is connected to the movable plate (4) via a first station lower mold base (11), and the lower end surface of the second station lower mold (6) is connected to the movable plate (4) via a second station lower mold base (12).

5. A metal sheet stamping die according to claim 4, characterized in that: Positioning sleeves (83) are respectively arranged vertically downward at the four corner positions of the lower end surface of the upper mold base (33), first positioning columns (81) adapted to the positioning sleeves (83) are respectively arranged vertically upward at the four corner positions of the upper end surface of the lower mold base (11) of the first station, and second positioning columns (82) adapted to the positioning sleeves (83) are respectively arranged vertically upward at the four corner positions of the upper end surface of the lower mold base (12) of the second station.

6. A metal sheet stamping die according to claim 5, characterized in that: The upper ends of the first positioning column (81) and the second positioning column (82) are respectively provided with hemispherical transition heads (84), and a through hole (85) is provided on the side surface of one end of the positioning sleeve (83) close to the upper mold seat (33).

7. The metal sheet stamping die according to claim 1, characterized in that: The upper end surface of the workbench (1) is provided with a rectangular notch (13) along its length direction, and grooves (14) are respectively provided on the front and rear inner walls of the rectangular notch (13) along its length direction, and the two lateral displacement mechanisms are symmetrically arranged inside the two grooves (14).

8. A metal sheet stamping die according to claim 7, characterized in that: The lateral displacement mechanism is provided on a connecting block (71) at the middle position of the front and rear side surfaces of the movable plate (4), and the left and right side surfaces of the connecting block are respectively hinged with a first oil cylinder (72) and a second oil cylinder (73), and the other ends of the first oil cylinder (72) and the second oil cylinder (73) are respectively hinged with the left and right inner walls of the groove (14).

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