Bending device with swing block

Abstract

The utility model relates to the technical field of die machining, in particular to a bending device with a swing block. The lower portion of the upper die base is connected with an upper clamping plate, a material pressing plate is arranged below the upper clamping plate, a bending female die is arranged below the material pressing plate, a lower die base is arranged below the bending female die, a limiting block is inserted into the bending female die, a bending groove is formed in the bending female die, a pre-rebound groove is formed in the right side of the bending female die, a side check block is arranged in the bending groove, and the side check block and the pre-rebound groove are oppositely arranged. The lower portion of the upper clamping plate is connected with a bending male die through a male die screw, the lower end of the male die screw sequentially penetrates through the upper die base, the upper clamping plate and the bending male die and is fixedly connected with the bending male die, the male die screw is sleeved with a belleville spring, and the other end of the belleville spring abuts against the upper clamping plate. Compared with the prior art, springback generated in the bending process due to different hardness degrees and rigidities of materials of products is avoided, springback adjusting operation is convenient, and product quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically a bending device with a swing block. Background Technology

[0002] A bending device is an industrial equipment used to bend and shape metal sheets, pipes, profiles or other materials. It is widely used in manufacturing, construction, automotive and other fields. Its core function is to apply external force to cause plastic deformation of the material to obtain a specific shape or angle. Due to the rigidity of the product material, when the product is removed from the mold, it will spring back. For materials in the same batch, there will be rigidity errors between materials, resulting in different springbacks, which will cause the bending angle of the product to fail to meet the requirements and result in serious scrap. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides a bending device with a swing block, which allows the bending punch to swing left and right within a certain range when in contact with the product. This allows the product to fit with the bending die through the swing, causing the product to pre-spring back. As a result, when the upper die moves upward to remove the product, the product will produce the desired product under the influence of the material rigidity.

[0004] To achieve the above objectives, a bending device with a swing block is designed, including an upper die base, an upper clamping plate connected below the upper die base, a pressure plate below the upper clamping plate, a bending die below the pressure plate, a lower die base below the bending die, a limiting block inserted in the bending die, a bending groove opened inside the bending die, a pre-springback groove opened on the right side of the bending die, a side stop block provided in the bending groove, the side stop block being arranged opposite to the pre-springback groove, a bending punch connected below the upper clamping plate by a punch screw, the lower end of the punch screw passing through the upper die base, the upper clamping plate, and the bending punch in sequence and being fixedly connected to the bending punch, a disc spring sleeved on the punch screw, the other end of the disc spring abutting against the upper clamping plate.

[0005] The side stop block is provided with a second inclined surface, and the upper right corner of the bending die is provided with a first arc surface.

[0006] The bending punch has a second arc surface at the lower left corner that mates with the first arc surface, and a first inclined surface at the lower right corner that mates with the second inclined surface.

[0007] A spring is provided between the upper mold base and the pressure plate. One end of the spring abuts against the pressure plate, and the other end of the spring passes through the upper clamping plate and abuts against the upper mold base.

[0008] The upper mold base is provided with a screw, the lower end of which passes through the upper mold base and the upper clamping plate in sequence and protrudes below the upper clamping plate.

[0009] The pressure plate is connected to the upper clamping plate by screw two. Screw two is installed in the hole of the upper mold base. The lower end of screw two penetrates the upper clamping plate and is inserted into the pressure plate for fixation.

[0010] The upper clamping plate is connected to one end of a guide block, and the other end of the guide block passes through the pressure plate and is connected to the bending die.

[0011] The lower mold base is connected to the lower support plate via lower pads.

[0012] Guide pillars are provided on the left and right sides between the upper mold base and the lower mold base.

[0013] Compared with the prior art, this utility model avoids the product from springing back during bending due to the different hardness and rigidity of the material. The product can be adjusted by adjusting the left and right movement of the side stop. The bending punch fixing method has been changed to a swing block form, which makes the product springback adjustment very convenient and ensures the product quality. The modified structure plays a guarantee role in the forming of similar products in the future. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a magnified view of a portion of the rocker block.

[0016] See Figures 1 to 2 1 is a punch screw, 2 is a disc spring, 3 is a bending punch, 3.1 is an inclined surface one, 3.2 is an arc surface two, 4 is a bending die, 4.1 is an arc surface one, 4.2 is a pre-spring groove, 5 is a side stop block, 5.1 is an inclined surface two, 6 is an upper die base, 7 is a spring, 8 is a lower die base, 9 is a lower pad, 10 is a lower support plate, 11 is a guide block, 12 is a lower die base, 13 is a limit block, 14 is a pressure plate, 15 is a guide post, 16 is a screw one, 17 is a screw two, 18 is an upper clamping plate, and 19 is a bending groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1As shown, an upper clamping plate 18 is connected below the upper die base 6. A pressure plate 14 is provided below the upper clamping plate 18. The pressure plate 14 presses the material to be processed to prevent unnecessary displacement during bending. A bending die 4 is provided below the pressure plate 14. A lower die base 8 is provided below the bending die 4. A limiting block 13 is inserted in the bending die 4. A bending groove 19 is opened inside the bending die 4. A pre-springback groove 4.2 is opened on the right side of the bending die 4. The pre-springback groove 4.2 reserves space to compensate for material springback and adjust the final bending angle. The bending groove 19 is formed at the mating point of the bending die 4 and the bending punch 3. The bending groove 19 is used for... The material bending process is completed by accommodating the material and bending it into a specific shape. A side stop 5 is provided in the bending groove 19, which is opposite to the pre-springback groove 4.2. A bending punch 3 is connected to the lower part of the upper clamping plate 18 by a punch screw 1. The lower end of the punch screw 1 passes through the upper die base 6, the upper clamping plate 18, and the bending punch 3 in sequence and is fixedly connected to the bending punch 3. A disc spring 2 is sleeved on the punch screw 1. The punch screw 1 serves to fix the bending punch 3. The other end of the disc spring 2 abuts against the upper clamping plate 18. The disc spring 2 provides elastic support, allowing the bending punch 3 to swing when subjected to force to adapt to the material springback.

[0019] like Figure 2 As shown, the side stop 5 is provided with a second inclined surface 5.1, the upper right corner of the bending die 4 is provided with an arc surface 4.1, and the lower left corner of the bending punch 3 is provided with an arc surface 3.2 that matches the arc surface 4.1. The arc surface 4.1 and the arc surface 3.2 reduce contact stress and guide the material to bend smoothly. The lower right corner of the bending punch 3 is provided with an inclined surface 3.1 that matches the second inclined surface 5.1. By the cooperation of the inclined surface 5.1 and the inclined surface 3.1 of the bending punch 3, the swing amount of the bending punch 3 can be adjusted to control the springback.

[0020] A spring 7 is provided between the upper mold base 6 and the pressure plate 14. One end of the spring 7 abuts against the pressure plate 14, and the other end of the spring 7 passes through the upper clamping plate 18 and abuts against the upper mold base 6.

[0021] The upper mold base 6 is provided with screw 16. The lower end of screw 16 passes through the upper mold base 6 and the upper clamping plate 18 in sequence and is exposed below the upper clamping plate 18.

[0022] The pressure plate 14 is connected to the upper clamping plate 18 by screw 17. Screw 17 is installed in the hole of the upper mold base 6. The lower end of screw 17 penetrates the upper clamping plate 18 and is inserted into the pressure plate 14 for fixation.

[0023] One end of the guide block 11 is connected to the lower part of the upper clamping plate 18, and the other end of the guide block 11 passes through the pressure plate 14 and is connected to the bending die 4. The guide block 11 ensures that when pressed down.

[0024] The lower mold base 8 is connected to the lower support plate 10 via the lower pad foot 9.

[0025] Guide pillars 15 are provided on the left and right sides between the upper mold base 6 and the lower mold base 8.

[0026] The operation process of this utility model is as follows: The technician places the material to be processed above the bending die 4, with one end of the material abutting against the limiting block 13. The upper die seat 6 moves downward, and the pressure plate 14 first contacts the material, pressing it from above. The upper die seat 6 continues to move downward, and the bending punch 3 contacts the material. The arc surface 3.2 of the bending punch 3 and the arc surface 4.1 of the bending die 4 cooperate to guide the material to bend. The inclined surface 5.1 of the side stop 5 contacts the inclined surface 3.1 of the bending punch 3, limiting its swing range. The material rebound can be compensated by adjusting the position of the side stop 5. A disc spring 2 is fitted at the fixed punch screw 1. The disc spring 2 allows the bending punch 3 to swing slightly when under force, so that the material fits into the pre-springback groove 4.2 and pre-counteracts the springback. When the bending process is completed, the upper die seat 6 rises, and the bending punch 3 returns to its original position under the tension of the disc spring 2. The formed product is then removed. Its bending angle reaches the expected value due to the pre-springback design, reducing scrap. This equipment dynamically adjusts the bending angle through the swing block structure, i.e., the swing of the bending punch 3 and the cooperation between the bending punch 3 and the pre-springback groove 4.2, effectively compensating for the springback problem caused by the difference in material rigidity and improving product consistency.

Claims

1. A bending device with a pendulum, comprising an upper die holder (6), characterized in that: The upper mold base (6) is connected to the upper clamping plate (18) below. The upper clamping plate (18) is provided with a pressure plate (14) below. The pressure plate (14) is provided with a bending die (4) below. The bending die (4) is provided with a lower mold base (8) below. A limiting block (13) is inserted in the bending die (4). A bending groove (19) is opened inside the bending die (4). A pre-spring groove (4.2) is opened on the right side of the bending die (4). A side stop block (5) is provided in the bending groove (19). The side stop block (5) is arranged opposite to the pre-spring groove (4.2). A bending punch (3) is connected to the upper clamping plate (18) below through a punch screw (1). The lower end of the punch screw (1) passes through the upper mold base (6), the upper clamping plate (18), and the bending punch (3) in sequence and is fixedly connected to the bending punch (3). A disc spring (2) is sleeved on the punch screw (1). The other end of the disc spring (2) abuts against the upper clamping plate (18).

2. The bending device with a swing block according to claim 1, characterized in that: The side block (5) is provided with a second inclined surface (5.1), and the upper right corner of the bending die (4) is provided with an arc surface (4.1).

3. The bending device with a swing block according to claim 1, characterized in that: The lower left corner of the bending punch (3) is provided with a second arc surface (3.2) that cooperates with the first arc surface (4.1), and the lower right corner of the bending punch (3) is provided with a first inclined surface (3.1) that cooperates with the second inclined surface (5.1).

4. The bending device with a swing block according to claim 1, characterized in that: A spring (7) is provided between the upper mold base (6) and the pressure plate (14). One end of the spring (7) abuts against the pressure plate (14), and the other end of the spring (7) passes through the upper clamping plate (18) and abuts against the upper mold base (6).

5. A bending device with a swing block according to claim 1, characterized in that: The upper mold base (6) is provided with a screw (16), the lower end of which passes through the upper mold base (6) and the upper clamping plate (18) in sequence and protrudes below the upper clamping plate (18).

6. The bending device with a swing block according to claim 1, characterized in that: The pressure plate (14) is connected to the upper clamping plate (18) by screw two (17). Screw two (17) is installed in the hole of the upper mold base (6). The lower end of screw two (17) penetrates the upper clamping plate (18) and is inserted into the pressure plate (14) for fixing.

7. The bending device with a swing block according to claim 1, characterized in that: The upper clamping plate (18) is connected to one end of the guide block (11) below, and the other end of the guide block (11) passes through the pressure plate (14) and is connected to the bending die (4).

8. The bending device with a swing block according to claim 1, characterized in that: The lower mold base (8) is connected to the lower support plate (10) via the lower pad (9).

9. The bending device with a swing block according to claim 1, characterized in that: Guide pillars (15) are provided on the left and right sides between the upper mold base (6) and the lower mold base (8).

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