Cushioning stamping and bending die

Abstract

The utility model provides a cushioning stamping bending die which comprises a lower die base, the lower die base comprises a bottom plate and a top plate, a plurality of reinforcing rib plates are arranged between the bottom plate and the top plate, a bending die is connected above the top plate, and the bending die comprises a front fixing plate, a rear fixing plate and a fixing bottom plate. The left side and the right side between the front fixing plate and the rear fixing plate are each provided with a dynamic bending die, the buffer base is connected with a plurality of first guide columns arranged side by side, first buffer springs are connected between the bottoms of the first guide columns and the buffer base, the tops of all the first guide columns are fixedly connected to a dynamic bending sleeve, the dynamic bending sleeve is arranged on a movable shaft in a sleeving mode, and the movable shaft is fixedly connected with the buffer base. And a discharging plate is arranged between the two dynamic molds. A bending male die is arranged above the position corresponding to the discharging plate. Vibration and impact of the die in the stamping and bending process are reduced, so that the surface quality and the size precision of a workpiece can be remarkably improved, and meanwhile, the service life of the die is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bending die technology, and in particular to a shock-absorbing stamping bending die. Background Technology

[0002] Stamping and bending die technology is mainly used in the field of metal processing, especially in industries such as automobiles, aerospace and home appliances manufacturing.

[0003] Existing molds often generate significant vibration and impact during stamping and bending processes, affecting the surface quality and dimensional accuracy of the workpiece, and also impacting the service life of the mold. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] A shock-absorbing stamping and bending die includes a lower die base, which includes a bottom plate and a top plate. Several reinforcing ribs are provided between the bottom plate and the top plate. Several shock-absorbing sleeves are provided on the left and right sides of the reinforcing ribs located in the middle. A bending die is connected above the top plate. The bending die includes a front fixed plate, a rear fixed plate, and a fixed bottom plate. A dynamic bending die is provided on each of the left and right sides between the front and rear fixed plates. A buffer seat is connected to several parallel guide pillars. A buffer spring is connected between the bottom of each guide pillar and the buffer seat. The tops of all guide pillars are fixedly connected to the dynamic bending sleeves. The dynamic bending sleeves are fitted onto a movable shaft. The front and rear ends of the movable shaft are respectively placed in a movable limiting hole. A stripper plate is provided between the two dynamic dies.

[0006] A bending punch is provided above the position of the unloading plate. The bending punch includes two pressing blocks on both sides and a connecting block is provided between the two pressing blocks. The bottom of the connecting block is higher than the bottom of the two pressing blocks. When the dynamic bending sleeve on the left moves to the rightmost side and the dynamic bending sleeve on the right moves to the leftmost side, the left and right sides of the unloading plate contact the surface of the dynamic bending sleeve respectively.

[0007] As a preferred embodiment, the dynamic bending die includes a buffer seat, which is fixedly connected to a base, and the base is fixedly connected to a fixed base plate.

[0008] As a preferred embodiment, the buffer seat is provided with a connecting ear on each of its front and rear sides, and the connecting ear is fixedly connected to the front fixing plate and the rear fixing plate respectively by bolts.

[0009] As a preferred embodiment, the movable limiting hole is a waist hole.

[0010] As a preferred embodiment, a number of guide posts are connected between the unloading plate and the top plate, and a number of buffer springs are connected between the unloading plate and the bottom plate. The buffer springs are placed in the damping sleeve at the bottom and in the buffer hole at the top of the unloading plate.

[0011] As a preferred embodiment, the bending punch is fixedly connected to the upper die base, a pad is provided between the bending punch and the upper die base, and a guide post is provided at each of the four corners between the top plates of the upper die base and the lower die base.

[0012] As a preferred embodiment, the buffer spring is located inside the buffer seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are: when the shock-absorbing stamping and bending die of this utility model is used, the buffer spring not only drives the dynamic bending sleeve to extend and retract, but also has a buffering effect, which makes the bending effect better and avoids excessive bending angle deviation.

[0014] Several buffer springs are connected between the unloading plate and the base plate. The lower part of the buffer spring is placed inside the damping sleeve, and the top is placed inside the buffer hole opened at the bottom of the unloading plate. The stroke of the buffer spring is long enough. A connecting block is provided between the two pressing blocks. The bottom of the connecting block is higher than the bottom of the two pressing blocks. In this way, during the stamping process, the connecting block will not contact the part. Only the pressing blocks on both sides will contact and bend the part. The buffer springs with a long stroke can alleviate the excess stress on the part as much as possible, thereby avoiding unnecessary deformation of the part and improving the processing accuracy.

[0015] This invention can significantly improve the surface quality and dimensional accuracy of workpieces by reducing the vibration and impact of the mold during stamping and bending processes, while also extending the service life of the mold. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 From Figure 2 Schematic diagram of the cross-section at point AA;

[0020] Figure 4 This is a three-dimensional structural diagram of the present invention without the front fixing plate;

[0021] Figure 5 This is a three-dimensional structural diagram of the dynamic bending mold of this utility model;

[0022] Figure 6 This is a top view schematic diagram of the dynamic bending die of this utility model;

[0023] Figure 7 This is a three-dimensional structural diagram of the connection between the guide post and the buffer spring of this utility model. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0025] A shock-absorbing stamping and bending die includes a lower die base 1, which includes a base plate 101 and a top plate 102. A plurality of reinforcing ribs 103 are provided between the base plate 101 and the top plate 102. A plurality of shock-absorbing sleeves 104 are symmetrically arranged on the left and right sides of each of the reinforcing ribs 103 located in the middle. A bending die 2 is connected above the top plate 102. The bending die 2 includes a front fixed plate 21, a rear fixed plate 22, and a fixed base plate 23. A plurality of shock-absorbing sleeves 104 are provided on the left and right sides between the front fixed plate 21 and the rear fixed plate 22. The dynamic bending die 3 includes a buffer seat 31, which is connected to a plurality of parallel guide posts 32. A buffer spring 33 is connected between the bottom of the guide posts 32 and the buffer seat 31. The top of all the guide posts 32 is fixedly connected to a dynamic bending sleeve 34 perpendicular to them. The dynamic bending sleeve 34 is fitted on a movable shaft 35. The front and rear ends of the movable shaft 35 are respectively placed in a movable limiting hole 36. A stripper plate 4 is provided between the two dynamic bending dies 3.

[0026] A bending punch 5 is provided above the position corresponding to the unloading plate 4. The bending punch 5 includes two pressing arc blocks 51 on both sides. A connecting block 52 is provided between the two pressing arc blocks 51. The bottom of the connecting block 52 is higher than the bottom of the two pressing arc blocks 51. When the dynamic bending sleeve 34 on the left moves to the rightmost side and the dynamic bending sleeve 34 on the right moves to the leftmost side, the left and right sides of the unloading plate 4 contact the surface of the dynamic bending sleeve 34 respectively.

[0027] Furthermore, the buffer seat 31 is fixedly connected to the base 37, and the base 37 is fixedly connected to the fixed base plate 23.

[0028] Furthermore, the buffer seat 31 is provided with a connecting ear 38 on each of its front and rear sides, and the connecting ear 38 is fixedly connected to the front fixing plate 21 and the rear fixing plate 22 respectively by bolts 39.

[0029] Furthermore, the movable limiting hole 36 is a waist hole.

[0030] Furthermore, a plurality of guide posts 401 are connected between the unloading plate 4 and the top plate 102, and a plurality of buffer springs 6 are connected between the unloading plate 4 and the bottom plate 101. The lower part of the buffer springs 6 is placed inside the shock-absorbing sleeve 104, and the top part is placed inside the buffer hole 41 opened at the bottom of the unloading plate 4.

[0031] Furthermore, the bending punch 5 is fixedly connected to the upper die base 7, and a pad 8 is provided between the bending punch 5 and the upper die base 7. A guide post 9 is provided at each of the four corners between the upper die base 7 and the top plate 102 of the lower die base 1.

[0032] Furthermore, the buffer spring 33 is disposed inside the buffer seat 31.

[0033] When using this shock-absorbing stamping and bending die, the part is placed on the top surface of the stripper plate 4. Under the action of external power, the upper die base 7 drives the bending punch 5 to press down. During the pressing down of the bending punch 5, the pressure arc blocks 51 on both sides will push the dynamic bending sleeve 34 on the corresponding side. The movable shaft 35 connected to the dynamic bending sleeve 34 moves to both sides along the movable limit hole 36. During this process, the buffer spring 33 not only drives the dynamic bending sleeve 34 to extend and retract, but also has a buffering effect, which makes the bending effect good and avoids excessive bending angle deviation.

[0034] Several buffer springs 6 are connected between the unloading plate 4 and the base plate 101. The lower part of the buffer spring 6 is placed inside the shock-absorbing sleeve 104, and the top is placed inside the buffer hole 41 opened at the bottom of the unloading plate 4. The stroke of the buffer spring 6 is long enough. A connecting block 52 is provided between the two pressure arc blocks 51. The bottom of the connecting block 52 is higher than the bottom of the two pressure arc blocks 51. In this way, during the stamping process, the connecting block 52 will not contact the part. Only the pressure arc blocks 51 on both sides will contact and bend the part. With buffer springs 6 having a long stroke, the excess stress on the part can be relieved as much as possible, thereby avoiding unnecessary deformation of the part and improving the processing accuracy.

[0035] After processing is completed, external power drives the upper die holder 7 and bending punch 5 to reset. During this process, under the action of buffer spring 33, the two dynamic bending sleeves 34 are reset. Under the action of the rebound force of buffer spring 6, the stripper plate 4 moves up to push out the processed part.

[0036] During operation, the stroke of the upper mold base 7 is set according to the specifications of the parts being processed.

[0037] The specific implementation of this utility model has been described in detail above, but it is only an example. This utility model is not limited to the specific implementation cases described above, and equivalent modifications to this utility model are also within the protection scope of this utility model.

Claims

1. A shock-absorbing stamping and bending die, characterized in that, The system includes a lower mold base (1), which includes a base plate (101) and a top plate (102). A plurality of reinforcing ribs (103) are provided between the base plate (101) and the top plate (102). A plurality of shock-absorbing sleeves (104) are symmetrically provided on the left and right sides of the reinforcing ribs (103) placed in the middle. A bending die (2) is connected above the top plate (102). The bending die (2) includes a front fixed plate (21), a rear fixed plate (22), and a fixed base plate (23). A dynamic bending device is provided on the left and right sides between the front fixed plate (21) and the rear fixed plate (22). The dynamic bending die (3) includes a buffer seat (31), which is connected to a plurality of guide pillars (32) arranged in parallel. A buffer spring (33) is connected between the bottom of the guide pillars (32) and the buffer seat (31). The top of all the guide pillars (32) is fixedly connected to a dynamic bending sleeve (34) perpendicular to it. The dynamic bending sleeve (34) is sleeved on a movable shaft (35). The front and rear ends of the movable shaft (35) are respectively placed in a movable limiting hole (36). A stripper plate (4) is provided between the two dynamic bending dies (3). A bending punch (5) is provided above the position corresponding to the unloading plate (4). The bending punch (5) includes two pressure arc blocks (51) on both sides. A connecting block (52) is provided between the two pressure arc blocks (51). The bottom of the connecting block (52) is higher than the bottom of the two pressure arc blocks (51). When the dynamic bending sleeve (34) on the left moves to the rightmost side and the dynamic bending sleeve (34) on the right is placed on the leftmost side, the left and right sides of the unloading plate (4) respectively contact the surface of the dynamic bending sleeve (34).

2. The shock-absorbing stamping and bending die according to claim 1, characterized in that, The buffer seat (31) is fixedly connected to the base (37), and the base (37) is fixedly connected to the fixed base plate (23).

3. The shock-absorbing stamping and bending die according to claim 2, characterized in that, The buffer seat (31) has a connecting ear (38) on each of its front and rear sides. The connecting ear (38) is fixedly connected to the front fixing plate (21) and the rear fixing plate (22) respectively by bolts (39).

4. The shock-absorbing stamping and bending die according to claim 1, characterized in that, The movable limiting hole (36) is a waist hole.

5. The shock-absorbing stamping and bending die according to claim 1, characterized in that, A number of guide posts (401) are connected between the unloading plate (4) and the top plate (102), and a number of buffer springs (6) are connected between the unloading plate (4) and the bottom plate (101). The lower part of the buffer springs (6) is placed inside the shock-absorbing sleeve (104), and the top part is placed inside the buffer hole (41) opened at the bottom of the unloading plate (4).

6. The shock-absorbing stamping and bending die according to claim 1, characterized in that, The bending punch (5) is fixedly connected to the upper die base (7). A pad (8) is provided between the bending punch (5) and the upper die base (7). A guide post (9) is provided at each of the four corners between the top plate (102) of the upper die base (7) and the lower die base (1).

7. The shock-absorbing stamping and bending die according to claim 1, characterized in that, The buffer spring (33) is located inside the buffer seat (31).

Images