Sheet metal punch forming equipment and punching method

Abstract

The invention relates to the technical field of metal plate punch forming, in particular to metal plate punch forming equipment and a punching method. The middle pressing table is pressed in the middle of the upper end of the cuboid plate, and the two side pressing tables are pressed on the left side and the right side of the upper end of the cuboid plate correspondingly. After the cutter cuts the left end and the right end of the cuboid plate from bottom to top, a clamping groove is formed in the cuboid plate, and then the cutter enters the clamping groove; the first contact part pushes the stamping side table to rise, at the moment, the left side and the right side of the cuboid plate are bent, meanwhile, the second contact part also pushes the fourth contact part to rise, and when the cuboid plate is bent and attached to the middle pressing table, the fourth contact part drives the fifth contact part to push the third contact part to rise; and the third contact part drives the middle pressing table to rise to be separated from the cuboid plate, so that the framework structure can be taken out, and machining of the framework structure is completed at one station.

Description

Technical Field

[0001] The invention relates to the technical field of metal sheet stamping and forming, and more particularly to a metal sheet stamping and forming device and a stamping method. Background Art

[0002] Sheet metal stamping is generally a forming method that relies on a pressure-driven structure to apply external force to the sheet metal to cause it to undergo plastic deformation or separation, thereby obtaining a workpiece of the desired shape and size. In the traditional sheet metal stamping process, the two steps of plastic deformation and separation usually need to be performed at two different workstations, and therefore also include two steps accordingly. In order to complete the two steps, this processing method requires two sets of stamping equipment and corresponding dies to be configured separately, which also extends the assembly line, and there is room for improvement in processing efficiency. Summary of the invention

[0003] The present invention provides a metal sheet stamping forming device and a stamping method, which have the beneficial effect of conveniently completing the stamping of the metal sheet into a three-dimensional skeleton structure at one workstation.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A metal sheet stamping forming device includes a stamping seat assembly, the stamping seat assembly includes a support seat, a first straight rod is slidably connected to the support seat, the upper end of the first straight rod is fixedly connected to a stamping side platform, a linear array of slots is arranged on the stamping side platform, the lower end of the first straight rod is fixedly connected to a tail, a first spring is sleeved on the first straight rod, the upper and lower ends of the first spring respectively abut against the lower end surface of the top of the support seat and the upper end surface of the tail, two stamping seat assemblies are arranged in left and right mirror symmetry, and an intermediate platform is arranged between the two stamping side platforms.

[0006] The upper end surfaces of the stamping side table and the middle table coincide with each other.

[0007] The notches on the two punch side tables are located on the side away from the middle table.

[0008] The distance between the stamping side table and the middle table shall not be less than the thickness of the metal sheet.

[0009] It also includes a lifting component, which includes a telescopic rod, the upper end of which is fixedly connected to a knife seat, and the knife seat is fixedly connected to cutters distributed in a linear array, and two lifting components are arranged in mirror symmetry on the left and right; there is a slot above each cutter, and a first contact portion is fixedly connected to the knife seat, and the first contact portion is located between any two cutters. When the cutter passes through the slot from bottom to top and protrudes from the stamping side platform to complete the cutting of the metal plate, the first contact portion contacts the stamping side platform.

[0010] It also includes an intermediate pressing platform arranged above the intermediate platform, the front and rear ends of the intermediate pressing platform are each slidably connected to a second straight rod, the upper end of the second straight rod is fixedly connected to a first head, and a second spring is sleeved on the second straight rod, and the upper and lower ends of the second spring respectively abut against the first head and the intermediate pressing platform.

[0011] It also includes a top mold mechanism, which includes a side pressing platform, a linear array of grooves is provided at the lower end of the side pressing platform, a third straight rod is fixedly connected to the front and rear sides of the upper end of the side pressing platform, a second head is fixedly connected to the upper end of the third straight rod, a connecting seat is slidably connected to the third straight rod, a third spring is sleeved on the third straight rod, and the upper and lower ends of the third spring are respectively against the connecting seat and the side pressing platform; two top mold mechanisms are mirror-symmetrically provided on the left and right, the connecting seat is fixedly connected to the middle pressing platform, and all the grooves are respectively located above all the cutters.

[0012] A second contact portion is fixedly connected to the knife seat, and the second contact portion is located in the cutting knife. A fourth contact portion is fixedly connected to the lower end of the side pressing platform, and the fourth contact portion is located in the groove, and the fourth contact portion is located directly above the second contact portion. A third contact portion is fixedly connected to the upper end of the middle pressing platform, and a fifth contact portion is fixedly connected to the upper end of the side pressing platform, and the fifth contact portion is located directly above the third contact portion.

[0013] A metal sheet stamping forming method, using the metal sheet stamping forming equipment:

[0014] Step 1: The middle press table is pressed on the middle part of the upper end of the rectangular plate, and the two side press tables are pressed on the left and right sides of the upper end of the rectangular plate respectively;

[0015] Step 2: The cutter cuts the left and right ends of the rectangular plate from bottom to top, so that a groove is formed on the rectangular plate, and then the cutter enters the groove;

[0016] Step three: The first contact part pushes the stamping side platform to rise. At this time, the left and right sides of the rectangular plate are bent. At the same time, the second contact part also pushes the fourth contact part to rise. When the rectangular plate is bent and fits on the middle press platform, the fourth contact part drives the fifth contact part to push the third contact part to rise, and the third contact part drives the middle press platform to rise and separate from the rectangular plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of sheet metal stamping and forming equipment is shown;

[0018] Figure 2 A front view of a sheet metal stamping and forming apparatus is shown;

[0019] Figure 3 A schematic diagram showing the support seat, the first straight bar, the punch side table, the notch, the tail, the first spring and the intermediate table;

[0020] Figure 4A schematic diagram showing the telescopic rod, knife holder, and cutting knife;

[0021] Figure 5 Shows Figure 4 The enlarged image at a in the middle;

[0022] Figure 6 A schematic diagram showing the middle press table, the second straight rod, the first head, the second spring, the third contact portion and the top die mechanism;

[0023] Figure 7 Shows Figure 6 Enlarged view of point b in the middle;

[0024] Figure 8 Shows Figure 1 Enlarged image at c in the middle;

[0025] Fig. 9 A schematic diagram showing the rectangular plate and the slot. DETAILED DESCRIPTION

[0026] A metal sheet stamping forming device, such as Figures 1 to 3 , including a stamping seat assembly, and two stamping seat assemblies are arranged in mirror symmetry on the left and right. For example, the stamping seat assembly located on the left side includes two support seats 1-1 arranged one in front and one behind, and each support seat 1-1 is slidably connected to the top of a first straight rod 1-2, and a stamping side platform 1-3 is fixedly connected to the upper ends of the two first straight rods 1-2. The left end of the stamping side platform 1-3 is provided with a linear array of notches 1-4 in the front-to-back direction, and the lower end of each first straight rod 1-2 is fixedly connected to a tail 1-5, and each first straight rod 1-2 is sleeved with a first spring 1-6, and the upper and lower ends of the first spring 1-6 are respectively against the lower end surface of the top of the support seat 1-1 and the upper end surface of the tail 1-5. An intermediate platform 1-7 is arranged between the two stamping side platforms 1-3, and the upper end surfaces of the stamping side platform 1-3 and the intermediate platform 1-7 coincide, and the intermediate platform 1-7 can be fixedly connected to the support seat 1-1.

[0027] Combination Fig. 9 a. Place a rectangular plate 5 made of metal material on the upper end surfaces of two stamping side platforms 1-3 and the middle platform 1-7, with the left and right sides of the rectangular plate 5 respectively located on the two stamping side platforms 1-3. The distance between the stamping side platform 1-3 and the middle platform 1-7 is not less than the thickness of the rectangular plate 5 made of metal material.

[0028] Further explanation, combined with Figure 4, and also includes two lifting components that are symmetrically arranged on the left and right sides. For example, the lifting component on the left side includes a telescopic rod 2-1 that is an electric cylinder or a hydraulic cylinder. The telescopic end of the telescopic rod 2-1 is arranged upward and fixedly connected to a knife holder 2-2. The knife holder 2-2 is fixedly connected to a cutter 2-3 distributed in a linear array in the front-to-back direction. The cutter 2-3 is used to cut a slot 6 on the rectangular plate 5; the initial position of the cutter 2-3 is located below the stamping side table 1-3. The number of the cutters 2-3 and the slots 1-4 are the same and the positions correspond one to one, so that the cutter 2-3 can pass through the slots 1-4 when moving upward, so as to pass through the stamping side table 1-3 to cut the rectangular plate 5. The extension and retraction of the telescopic rod 2-1 after activation is used to drive the knife holder 2-2 to rise and fall, thereby controlling the height of the cutter 2-3.

[0029] Preferably, combined Figure 5 A first contact portion 2-4 is fixedly connected to the knife seat 2-2, and the first contact portion 2-4 is located between any two cutters 2-3. When the cutter 2-3 passes through the slot 1-4 from bottom to top and protrudes from the stamping side platform 1-3 to complete the cutting of the rectangular plate 5, the first contact portion 2-4 contacts the bottom of the stamping side platform 1-3. As the knife seat 2-2 rises, the first contact portion 2-4 continues to rise. The first contact portion 2-4 pushes the stamping side platform 1-3 to rise, and the stamping side platform 1-3 punches the side of the rectangular plate 5, so that the left and right sides of the rectangular plate 5 are bent upward.

[0030] Further explanation, combined with Figure 6 and 7 , also includes an intermediate press platform 3-1 arranged above the intermediate platform 1-7, the front and rear ends of the intermediate press platform 3-1 are respectively slidably connected to two second straight rods 3-2, the upper end of each second straight rod 3-2 is fixedly connected to a first head 3-3, and each second straight rod 3-2 is sleeved with a second spring 3-4, and the upper and lower ends of the second spring 3-4 are respectively against the adjacent first head 3-3 and the intermediate press platform 3-1. The second spring 3-4 provides a downward force to the intermediate press platform 3-1, so that the intermediate press platform 3-1 is initially pressed on the part of the rectangular plate 5 located on the intermediate platform 1-7, on the other hand, when the left and right sides of the rectangular plate 5 are bent upward, they will finally fit on the left and right ends of the intermediate press platform 3-1, that is, the distance between the intermediate press platform 3-1 and the stamping side platform 1-3 is the thickness of the rectangular plate 5. The intermediate press platform 3-1 positions the rectangular plate 5 when punching out the card slot 6 and bending.

[0031] Furthermore, it also includes two top mold mechanisms arranged in mirror symmetry on the left and right sides, combined with Figure 7 and 8For example, the top mold mechanism located on the left side includes a side pressing platform 4-1, and the left part of the lower end of the side pressing platform 4-1 is provided with a linear array of grooves 4-2 in the front-to-back direction, and the grooves 4-2 correspond to the positions of the cutters 2-3 in the longitudinal direction. A third straight rod 4-5 is fixedly connected to the front and rear sides of the upper end of the side pressing platform 4-1, and a second head 4-6 is fixedly connected to the upper end of the third straight rod 4-5. A connecting seat 4-7 is slidably connected to the third straight rod 4-5, and a third spring 4-8 is sleeved on the third straight rod 4-5. The upper and lower ends of the third spring 4-8 are respectively abutted against the connecting seat 4-7 and the side pressing platform 4-1. The connecting seat 4-7 is fixedly connected to the middle pressing platform 3-1, and the two side pressing platforms 4-1 are respectively located above the two stamping side platforms 1-3.

[0032] A second contact portion 2-5 is fixedly connected to the knife seat 2-2, and the second contact portion 2-5 is located in the cutter 2-3. A fourth contact portion 4-3 is fixedly connected to the lower end of the side pressure platform 4-1, and the fourth contact portion 4-3 is located in the groove 4-2, and the fourth contact portion 4-3 is located directly above the second contact portion 2-5. A third contact portion 3-5 is fixedly connected to the upper end of the intermediate pressure platform 3-1, and a fifth contact portion 4-4 is fixedly connected to the upper end of the side pressure platform 4-1, and the fifth contact portion 4-4 is located directly above the third contact portion 3-5.

[0033] A metal sheet stamping forming method, initially, the two side press platforms 4-1 are respectively pressed on the left and right sides of the upper end of the rectangular plate 5 by the downward force provided by the third spring 4-8, and the cutter 2-3 will enter the groove 4-2 after cutting the rectangular plate 5, and then the first contact part 2-4 pushes the stamping side platform 1-3 to rise, at this time the left and right sides of the rectangular plate 5 are bent, and at the same time the second contact part 2-5 also pushes the fourth contact part 4-3 to rise, providing a bending space for the rectangular plate 5, and the third spring 4-8 is further compressed. When the rectangular plate 5 is bent and attached to the middle press platform 3-1, the fourth contact part 4-3 drives the fifth contact part 4-4 to push the third contact part 3-5 to rise, and the third contact part 3-5 drives the middle press platform 3-1 to rise, and the rectangular plate 5 is no longer pressed, and the bent rectangular plate 5 can be taken out at this time, and the style is as follows Fig. 9 As shown in b.

Claims

1. A metal sheet stamping forming device, comprising a stamping seat assembly, wherein the stamping seat assembly comprises a support seat (1-1), a first straight rod (1-2) is slidably connected to the support seat (1-1), a stamping side platform (1-3) is fixedly connected to the upper end of the first straight rod (1-2), a linear array of notches (1-4) is arranged on the stamping side platform (1-3), a tail portion (1-5) is fixedly connected to the lower end of the first straight rod (1-2), a first spring (1-6) is sleeved on the first straight rod (1-2), and the upper and lower ends of the first spring (1-6) respectively abut against the lower end surface of the top of the support seat (1-1) and the upper end surface of the tail portion (1-5), two stamping seat assemblies are arranged in mirror symmetry on the left and right, and an intermediate platform (1-7) is arranged between the two stamping side platforms (1-3).

2. According to the metal sheet stamping forming equipment according to claim 1, the upper end surfaces of the stamping side platform (1-3) and the middle platform (1-7) coincide with each other.

3. According to the metal sheet stamping and forming equipment according to claim 1, the notches (1-4) on the two stamping side platforms (1-3) are located on the side away from the middle platform (1-7).

4. According to the metal sheet stamping forming equipment as described in claim 1, the distance between the stamping side platform (1-3) and the middle platform (1-7) is not less than the thickness of the metal sheet.

5. The metal sheet stamping forming equipment according to claim 1 further includes a lifting assembly, the lifting assembly includes a telescopic rod (2-1), the upper end of the telescopic rod (2-1) is fixedly connected to a knife seat (2-2), and the knife seat (2-2) is fixedly connected to cutters (2-3) distributed in a linear array, and two lifting assemblies are arranged in left and right mirror symmetry; there is a notch (1-4) above each cutter (2-3), and a first contact portion (2-4) is fixedly connected to the knife seat (2-2), and the first contact portion (2-4) is located between any two cutters (2-3), and when the cutter (2-3) passes through the notch (1-4) from bottom to top and protrudes from the stamping side platform (1-3) to complete the cutting of the metal sheet, the first contact portion (2-4) contacts the stamping side platform (1-3).

6. According to the metal sheet stamping and forming equipment according to claim 5, the telescopic rod (2-1) is an electric telescopic cylinder or a hydraulic cylinder.

7. The metal sheet stamping forming equipment according to claim 5 further includes an intermediate press platform (3-1) arranged above the intermediate platform (1-7), and the front and rear ends of the intermediate press platform (3-1) are each slidably connected to a second straight rod (3-2), and the upper end of the second straight rod (3-2) is fixedly connected to a first head (3-3), and a second spring (3-4) is sleeved on the second straight rod (3-2), and the upper and lower ends of the second spring (3-4) are respectively against the first head (3-3) and the intermediate press platform (3-1).

8. The metal sheet stamping forming equipment according to claim 7 further includes a top die mechanism, the top die mechanism includes a side press platform (4-1), a linear array of grooves (4-2) is provided at the lower end of the side press platform (4-1), a third straight rod (4-5) is fixedly connected to the front and rear sides of the upper end of the side press platform (4-1), a second head (4-6) is fixedly connected to the upper end of the third straight rod (4-5), a connecting seat (4-7) is slidably connected to the third straight rod (4-5), a third spring (4-8) is sleeved on the third straight rod (4-5), and the upper and lower ends of the third spring (4-8) are respectively abutted against the connecting seat (4-7) and the side press platform (4-1); two top die mechanisms are arranged in mirror symmetry on the left and right, the connecting seat (4-7) is fixedly connected to the middle press platform (3-1), and all the grooves (4-2) are respectively located above all the cutters (2-3).

9. According to the metal sheet stamping forming equipment according to claim 8, a second contact part (2-5) is fixedly connected to the knife seat (2-2), and the second contact part (2-5) is located in the cutting knife (2-3); a fourth contact part (4-3) is fixedly connected to the lower end of the side press platform (4-1), and the fourth contact part (4-3) is located in the groove (4-2); the fourth contact part (4-3) is located directly above the second contact part (2-5); a third contact part (3-5) is fixedly connected to the upper end of the middle press platform (3-1); a fifth contact part (4-4) is fixedly connected to the upper end of the side press platform (4-1), and the fifth contact part (4-4) is located directly above the third contact part (3-5).

10. A metal sheet stamping method, comprising the following steps: Step 1: The middle pressing platform (3-1) is pressed on the middle of the upper end of the rectangular plate (5), and the two side pressing platforms (4-1) are pressed on the left and right sides of the upper end of the rectangular plate (5); Step 2: The cutter (2-3) cuts the left and right ends of the rectangular plate (5) from bottom to top, so that a slot (6) is formed on the rectangular plate (5), and then the cutter (2-3) enters the slot (4-2); Step three: the first contact portion (2-4) pushes the stamping side platform (1-3) to rise, and at this time the left and right sides of the rectangular plate (5) are bent, and at the same time the second contact portion (2-5) also pushes the fourth contact portion (4-3) to rise, and when the rectangular plate (5) is bent and affixed to the middle press platform (3-1), the fourth contact portion (4-3) drives the fifth contact portion (4-4) to push the third contact portion (3-5) to rise, and the third contact portion (3-5) drives the middle press platform (3-1) to rise and separate from the rectangular plate (5).

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