Rotary bending shaping die

Abstract

The utility model discloses a rotary bending shaping die, which comprises an upper die holder (1) and a lower die holder (2), and is characterized in that two symmetrically distributed driving blocks (3) are arranged on the bottom end surface of the upper die holder (1), a movable upper die (4) is arranged between the two driving blocks (3), the movable upper die (4) is connected with the upper die holder (1) through a material pressing spring (5), and the lower die holder (2) is connected with the upper die holder (1) through a material pressing spring (5). Two first lower retaining blocks (6) are arranged on the top end face of the lower die base (2) and correspond to the two driving blocks (3) respectively, shaping blocks (7) are rotationally connected to the first lower retaining blocks (6), the inner sides of the tops of the shaping blocks (7) are shaping slopes (8), the outer sides of the tops of the shaping blocks (7) are driving slopes (9), and the driving slopes (9) are matched with the driving blocks (3).

Description

Technical Field

[0001] The utility model relates to the field of stamping dies, in particular to a rotary bending and shaping die. Background Art

[0002] When performing forming processing on certain metal materials, a stamping forming process is often required. The stamping die used in the stamping forming process generally includes an upper die and a lower die. The upper die and the lower die are respectively provided with dies. The upper die moves toward the lower die under the drive of the forming machine. During the movement, the material between the upper and lower dies is squeezed into a shape that matches the die to form a workpiece.

[0003] However, for some workpieces, the bending angle of the folded edge is relatively large. It is impossible to achieve such a large angle bending operation at one time by using ordinary molds. Therefore, traditionally, two stamping operations are used to bend the workpieces separately. This requires two steps to achieve the bending operation of such workpieces, which results in a large workload and low production efficiency.

[0004] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0005] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a rotary bending shaping die which has a simple structure, ingenious design, reasonable layout and can realize a large-angle bending operation in one stamping operation.

[0006] The technical solution of the utility model is: a rotary bending shaping mold, comprising an upper mold base 1 and a lower mold base 2, characterized in that: two symmetrically distributed driving blocks 3 are arranged on the bottom end surface of the upper mold base 1, and a movable upper mold 4 is arranged between the two driving blocks 3, and the movable upper mold 4 is connected to the upper mold base 1 through a pressure spring 5.

[0007] Two first lower holding blocks 6 are arranged on the top surface of the lower die base 2, and the two first lower holding blocks 6 correspond to the two driving blocks 3 respectively. A shaping block 7 is rotatably connected to the first lower holding block 6, and the inner side of the top of the shaping block 7 is a shaping slope 8, and the outer side of the top is a driving slope 9, and the driving slope 9 matches the driving block 3.

[0008] A second lower holding block 10 is arranged between the two first lower holding blocks 6, and receiving grooves are provided on both sides of the second lower holding block 10. A return spring 11 is arranged in the receiving groove, and the end of the return spring 11 is connected to the inner wall of the shaping block 7. At the same time, the second lower holding block 10 is located below the movable upper mold 4.

[0009] The driving inclined surface 9 matches with the adjustable block 12 fixedly connected to the driving block 3 , and a gasket 13 is arranged between the adjustable block 12 and the driving block 3 .

[0010] An oil injection channel 14 is provided in the first lower retaining block 6 , an oil injection joint 15 is provided at the inlet end of the oil injection channel 14 , and an outlet end is communicated with the chamber where the bottom end of the shaping block 7 is located.

[0011] At least two equal-height bolts 16 are connected to the top end surface of the movable upper die 4 , and the top ends of the equal-height bolts 16 are movably connected to the guide grooves 17 provided in the upper die base 1 .

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] This type of rotary bending shaping die has a simple structure, ingenious design, and reasonable layout. It aims to solve the problem that the traditional large-angle stamping and bending operation needs to be divided into two processes. It designs a mechanism that can swing along with the pressing action. It can further adjust the angle of the already bent flange during the pressing and bending process, thereby realizing a large-angle bending operation in one process, so as to save processes and improve work efficiency. In addition, its manufacturing process is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the embodiment of the utility model (mold opening state).

[0015] Figure 2 It is the front view (mold closing state) of the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings: Figure 1 , Figure 2 As shown, a rotary bending shaping die comprises an upper die base 1 and a lower die base 2. Two symmetrically distributed driving blocks 3 are arranged on the bottom end surface of the upper die base 1. A movable upper die 4 is arranged between the two driving blocks 3. The movable upper die 4 is connected to the upper die base 1 through a pressure spring 5.

[0017] Two first lower holding blocks 6 are arranged on the top surface of the lower die base 2, and the two first lower holding blocks 6 correspond to the two driving blocks 3 respectively. A shaping block 7 is rotatably connected to the first lower holding block 6, and the inner side of the top of the shaping block 7 is a shaping slope 8, and the outer side of the top is a driving slope 9, and the driving slope 9 matches the driving block 3.

[0018] A second lower holding block 10 is arranged between the two first lower holding blocks 6, and receiving grooves are provided on both sides of the second lower holding block 10. A return spring 11 is arranged in the receiving groove, and the end of the return spring 11 is connected to the inner wall of the shaping block 7. At the same time, the second lower holding block 10 is located below the movable upper mold 4.

[0019] The driving inclined surface 9 matches with the adjustable block 12 fixedly connected to the driving block 3 , and a gasket 13 is arranged between the adjustable block 12 and the driving block 3 .

[0020] An oil injection channel 14 is provided in the first lower retaining block 6 , an oil injection joint 15 is provided at the inlet end of the oil injection channel 14 , and an outlet end is communicated with the chamber where the bottom end of the shaping block 7 is located.

[0021] At least two equal-height bolts 16 are connected to the top end surface of the movable upper die 4 , and the top ends of the equal-height bolts 16 are movably connected to the guide grooves 17 provided in the upper die base 1 .

[0022] The working process of the rotary bending shaping mold of the embodiment of the utility model is as follows: in the non-working state, the workpiece 16 to be bent is placed on the top surface of the second lower holding block 10, and the two shaping blocks 7 are in a state of being sprung outward under the action of the return spring 11;

[0023] When the workpiece 16 needs to be bent, the upper die seat 1 moves downward rapidly under the drive of the forming machine, and the movable upper die 4 first contacts the surface of the workpiece 16 and presses it tightly. Under the action of the first lower holding block 6 and the shaping block 7, both sides of the workpiece 16 are bent once;

[0024] Then the upper die base 1 continues to move downward, during which the pressing spring 5 is compressed, and the bottom of the adjustable block 12 contacts the driving inclined surface 9 on the outside of the shaping block 7, forcing the shaping block 7 to swing inward, and the shaping inclined surface 8 on the inside of the shaping block 7 contacts the folded edge of the workpiece and drives the folded edge to flip inward, thereby realizing secondary bending;

[0025] After the upper die seat 1 moves upward again, the shaping block 7 returns to the initial angle under the action of the return spring 11; during use, lubricating oil can be injected into the chamber at the bottom of the shaping block 7 through the oil injection joint 15 and the oil injection channel 14 to ensure smooth movement of the shaping block 7;

[0026] This mold can achieve a larger angle bending operation in one stamping process, saving process flow and improving work efficiency.

Claims

1. A rotary bending shaping die, comprising an upper die base (1) and a lower die base (2), characterized in that: Two symmetrically distributed drive blocks (3) are arranged on the bottom end surface of the upper die seat (1), a movable upper die (4) is arranged between the two drive blocks (3), and the movable upper die (4) is connected to the upper die seat (1) via a pressure spring (5). Two first lower retaining blocks (6) are arranged on the top surface of the lower die base (2), and the two first lower retaining blocks (6) correspond to the two driving blocks (3) respectively. A shaping block (7) is rotatably connected to the first lower retaining block (6), and the inner side of the top of the shaping block (7) is a shaping inclined surface (8), and the outer side of the top is a driving inclined surface (9), and the driving inclined surface (9) matches the driving block (3). A second lower retaining block (10) is arranged between the two first lower retaining blocks (6), and receiving grooves are provided on both sides of the second lower retaining block (10). A return spring (11) is arranged in the receiving groove, and the end of the return spring (11) is connected to the inner wall of the shaping block (7). At the same time, the second lower retaining block (10) is located below the movable upper mold (4).

2. The rotary bending shaping die according to claim 1, characterized in that: The driving inclined surface (9) matches an adjustable block (12) fixedly connected to the driving block (3), and a gasket (13) is provided between the adjustable block (12) and the driving block (3).

3. The rotary bending shaping die according to claim 1, characterized in that: An oil injection channel (14) is provided in the first lower retaining block (6); an oil injection joint (15) is provided at the inlet end of the oil injection channel (14), and the outlet end is communicated with the chamber at the bottom end of the shaping block (7).

4. The rotary bending shaping die according to claim 1, characterized in that: At least two equal-height bolts (16) are connected to the top end surface of the movable upper die (4), and the top ends of the equal-height bolts (16) are movably connected to guide grooves (17) provided in the upper die seat (1).

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