Stamping die and upward flanging mechanism thereof

Abstract

The utility model relates to a stamping die and an upward flanging mechanism thereof, and belongs to the technical field of stamping dies. Comprising an upper die base and a lower die base, flanging mechanisms are arranged on the two sides of the lower die base, each flanging mechanism comprises a lower driving block, an upper driving block and a sliding block, an inclined driving guide plate is arranged between the upper driving block and the lower driving block, driven guide plates with opposite inclination directions are arranged between the sliding block and the lower driving block, and a flanging insert is arranged at the top of the sliding block; a flanging cavity is formed between the flanging insert and the upper pressing plate, a buffering air cylinder is arranged at the bottom of the upper pressing plate, and the bottom end of the buffering air cylinder can abut against the top of the flanging insert. According to the scheme, when the flanging inclined wedge moves upwards, the top of the flanging inclined wedge can abut against the buffering air cylinder, the flanging inclined wedge is prevented from colliding with the upper pressing plate, the service life of the upward flanging mechanism is prolonged, shaping and flanging are conducted on a metal plate at the same time in one-time punching, the production efficiency is improved, parts can be produced under the condition that products are not rotated, and the production cost is reduced. And the requirement for equipment automation in the production process is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies and relates to a stamping die and an upward flanging mechanism thereof. Background Art

[0002] A stamping die is a device used to process metal parts. Mounted on a press, the die applies pressure to the material, causing it to separate or plastically deform, resulting in the desired part. To improve production efficiency, stamping dies are often equipped with multiple mechanisms, enabling two or more stamping steps to be completed simultaneously at the same station. This type of stamping die is called a compound die.

[0003] In the composite mold structure in the prior art, it is common to combine the two processes of stamping and punching to process the patterns and circular holes on the surface of the workpiece. For parts with upward flanging structures at the edges, the workpiece needs to be taken out and turned over, and then the flanging mold is used for flanging processing, which reduces production efficiency and is not conducive to the needs of automated production. Summary of the Invention

[0004] The purpose of the utility model is to address the problems existing in the existing technology and propose a stamping die and an upward flanging mechanism thereof. The technical problem to be solved by the utility model is: how to make the stamping die shape the workpiece while performing upward flanging on both sides of the workpiece.

[0005] The top of the slider is provided with a flanging insert, and a flanging cavity is provided between the flanging insert and the upper pressing plate, and a buffer cylinder is provided at the bottom of the upper pressing plate, and the bottom end of the buffer cylinder can be abutted against the top of the flanging insert.

[0006] In this solution, the metal sheet to be processed is placed on the forming cavity between the upper pressing plate and the lower die core, and the press is started to press the upper die base downward, so that the lower pressing part abuts against the upper driving block, and drives the upper driving block to move vertically downward. Since there is an oblique driving guide plate between the upper driving block and the lower driving block, the lower driving block moves horizontally to the side away from the upper driving block, and the driven guide plate on the other side will lift the slider, so that the slider and the fixed flanging insert move vertically upward, and the flanging insert punches the flanging on both sides of the metal sheet upward, and at the same time, the bottom surface of the upper pressing plate and the lower die are pressed together. The seats abut against each other to plasticize the metal sheet in the forming cavity; in the above manner, the stamping die can plasticize and flanging the metal sheet at the same time in one stamping, thereby improving production efficiency and producing parts without rotating the product, thus meeting the demand for equipment automation in the production process, and when the flanging wedge moves upward, the top will abut against the buffer cylinder to avoid collision between the flanging wedge and the upper pressure plate, thereby increasing the service life of the upward flanging mechanism, and the thickness of the flanging punched out by this flanging mechanism is also more uniform, thereby improving the stamping accuracy.

[0007] In the aforementioned stamping die and its upward flanging mechanism, a stop block is provided at the top of the slider, and a stop rod is provided at the bottom of the lower die base. The stop block is capable of upward movement to abut against the stop rod. After the slider moves upward to a specified position, the stop block abuts against the stop rod, preventing the slider from further upward movement. This maintains a fixed width of the flanging cavity between the flanging insert and the upper platen, ensuring that the thickness of the flanging produced by each stamping is the same.

[0008] In the aforementioned stamping die and its upward flanging mechanism, a top block is installed within the lower die base, and a horizontal nitrogen spring is installed on one side of the lower drive block. This spring is located on the side of the lower drive block closest to the die center, with the end of the spring abutting against the top block. After stamping is completed, the nitrogen spring pushes the lower drive block toward the upper drive block, causing the upper drive block to move upward and the slider on the other side to move downward, completing the reset.

[0009] In the aforementioned stamping die and upward flanging mechanism, slidably connected fixed blocks are provided on either side of the upper and lower drive blocks, which are fixedly connected to the lower die base. The fixed blocks are used to limit the positions of the upper and lower drive blocks within the lower die base, so that the upper and lower drive blocks can only move vertically.

[0010] In the above-mentioned stamping die and upward flanging mechanism, a slidably connected support plate is provided at the bottom of the lower driving block, and the support plate is fixedly connected to the lower die base. The support plate allows the lower driving block to move horizontally.

[0011] In the aforementioned stamping die and its upward flanging mechanism, a sliding connection base is provided on the top of the lower die base. The connection base is located on one side of the forming cavity, and a plurality of fixed punches are provided on one side of the connection base. During the stamping process, the connection base is pushed toward the forming cavity by the upper die base, allowing the punches on the connection base to punch holes in the metal sheet, allowing multiple stamping steps to be completed in one press.

[0012] In the aforementioned stamping die and upward flanging mechanism, a concave die sleeve is provided within the lower die core, into which the end of the punch can be inserted. The bottom of the concave die sleeve is provided with interconnected blanking holes. Several storage boxes are provided within the lower die base, with the blanking holes located directly above the storage boxes. Waste material formed by the punching is pressed into the concave die sleeve, passes through the interconnected blanking holes, and falls into the storage boxes.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] In this solution, the stamping die simultaneously shapes and flanging the metal sheet in one stamping operation, which improves production efficiency and allows the production of parts without rotating the product, thus meeting the demand for equipment automation in the production process.

[0015] In this solution, when the flanging wedge moves upward, the top will abut against the buffer cylinder to prevent the flanging wedge from colliding with the upper pressure plate, thereby increasing the service life of the upward flanging mechanism. The thickness of the flanging stamped out using this flanging mechanism is also more uniform, thereby improving the stamping accuracy.

[0016] In this solution, after the slider moves up to the specified position, the limit block will abut against the limit rod to prevent the slider from moving further upward, so that the flanging cavity between the flanging insert and the upper pressure plate maintains a fixed width, allowing each stamped component to have the same flanging thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the half-section structure of the utility model;

[0019] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure in;

[0020] Figure 4 This is a schematic diagram of the half-section structure of the utility model from the left;

[0021] Figure 5 It is a schematic structural diagram of the utility model in the open state.

[0022] In the figure, 1. upper die base; 1a. upper pressure plate; 1a1. buffer cylinder; 1b. limit rod; 1c. lower pressure part; 2. lower die base; 2a. lower die core; 2a1. die sleeve; 2a2. blanking hole; 2b. top block; 2c. storage box; 3. forming cavity; 4. lower driving block; 4a. nitrogen spring; 4b. support plate; 5. upper driving block; 5a. driving guide plate; 6. slider; 6a. driven guide plate; 7. flanging insert; 7a. limit block; 8. flanging cavity; 9. connecting seat; 9a. punch; 10. fixing block. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Example

[0024] like Figure 1 As shown, the stamping die and its upward flanging mechanism include an upper die base 1 and a lower die base 2, wherein a detachable storage box 2c is provided inside the lower die base 2.

[0025] like Figure 2 Combine Figure 3 As shown, the bottom of the upper die base 1 is provided with an upper pressure plate 1a, the top of the lower die base 2 is provided with a lower die core 2a, a forming cavity 3 is provided between the upper pressure plate 1a and the lower die core 2a, and flanging mechanisms are provided on both sides of the lower die base 2, the flanging mechanism includes a lower driving block 4, an upper driving block 5 and a slider 6, the top of the lower driving block 4 is a pointed structure, the bottom of the lower driving block 4 is provided with a sliding connection support plate 4b, the support plate 4b is fixedly connected to the lower die base 2, the upper driving block 5 and the slider 6 are provided above the lower driving block 4, the upper driving block 5 is located on one side of the outside, an inclined driving guide plate 5a is provided between the upper driving block 5 and the lower driving block 4, a driven guide plate 6a with an opposite inclined direction is provided between the slider 6 and the lower driving block 4, the upper die base 1 is provided with a lower pressing part 1c at the bottom, and the lower pressing part 1c is abutted against the upper driving block 5. The top of the slider 6 is provided with a flanging insert 7, and a flanging cavity 8 is provided between the flanging insert 7 and the upper pressure plate 1a. The bottom of the upper pressure plate 1a is provided with a buffer cylinder 1a1, and the bottom end of the buffer cylinder 1a1 can abut against the top of the flanging insert 7. The top of the slider 6 is provided with a limit block 7a, and the bottom of the lower die base 2 is provided with a limit rod 1b, and the limit block 7a can move upward and abut against the limit rod 1b. The interior of the lower die base 2 is provided with a top block 2b, and one side of the lower driving block 4 is provided with a horizontal nitrogen spring 4a, and the nitrogen spring 4a is provided on the side of the lower driving block 4 close to the center of the mold, and the end of the nitrogen spring 4a abuts against the top block 2b.

[0026] like Figure 4 Combine Figure 5As shown, a connecting seat 9 with a sliding connection is provided on the top of the lower die base 2, and the connecting seat 9 is provided on one side of the forming cavity 3. A plurality of fixed punches 9a are provided on one side of the connecting seat 9. A die sleeve 2a1 is provided inside the lower die core 2a, and the end of the punch 9a can be inserted into the die sleeve 2a1. The bottom of the die sleeve 2a1 is provided with connected blanking holes 2a2. A plurality of storage boxes 2c are provided inside the lower die base 2, and the blanking holes are provided directly above the storage boxes 2c. Sliding fixed blocks 10 are provided on both sides of the upper driving block 5 and the lower driving block 4, and the fixed blocks 10 are fixedly connected to the lower die base 2.

[0027] The working principle of this scheme is as follows: Figure 1-5 As shown, the metal sheet to be processed is placed on the forming cavity 3 between the upper pressing plate 1a and the lower die core 2a, and the press is started to press the upper die base 1, so that the lower pressing part 1c is in contact with the upper driving block 5, and the upper driving block 5 is driven to move vertically downward. Since there is an oblique driving guide plate 5a between the upper driving block 5 and the lower driving block 4, the lower driving block 4 moves horizontally to the side away from the upper driving block 5, and the driven guide plate 6a on the other side will lift the slider 6, so that the slider 6 and the fixed flanging insert 7 move vertically upward, and then the flanging insert 7 The top will abut against the buffer cylinder 1a1, slowing down the upward movement speed and punching the flanges on both sides of the metal sheet upward. When the limit block 7a on the slider 6 abuts against the limit rod 1b, the flanging insert 7 stops moving up and completes the stamping of the upward flanging. At the same time, the bottom surface of the upper pressure plate 1a abuts against the lower die base 2 to stamp and shape the metal sheet in the forming cavity 3. The side connecting seat 9 will approach the forming cavity 3, and the punch 9a on the connecting seat 9 punches the metal sheet. Finally, the upper die base 1 is opened and the stamped metal sheet is taken out from the mold.

[0028] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0029] Although this article frequently uses terms such as 1. upper die base; 1a. upper pressure plate; 1a1. buffer cylinder; 1b. limiting rod; 1c. lower pressing part; 2. lower die base; 2a. lower die core; 2a1. die sleeve; 2a2. blanking hole; 2b. ejector block; 2c. storage box; 3. forming cavity; 4. lower driving block; 4a. nitrogen spring; 4b. support plate; 5. upper driving block; 5a. driving guide plate; 6. slider; 6a. driven guide plate; 7. flanging insert; 7a. limiting block; 8. flanging cavity; 9. connecting seat; 9a. punch; 10. fixing block, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A stamping die and an upward flanging mechanism thereof, comprising an upper die base (1) and a lower die base (2), wherein an upper pressing plate (1a) is provided at the bottom of the upper die base (1), a lower die core (2a) is provided at the top of the lower die base (2), a forming cavity (3) is provided between the upper pressing plate (1a) and the lower die core (2a), and a lower pressing portion (1c) is provided at the bottom of the upper die base (1), characterized in that: A flanging mechanism is provided on both sides of the lower die base (2), and the flanging mechanism includes a lower driving block (4), an upper driving block (5) and a slider (6). The upper driving block (5) and the slider (6) are arranged above the lower driving block (4), and the upper driving block (5) is located on one side of the outside. An inclined driving guide plate (5a) is provided between the upper driving block (5) and the lower driving block (4), and a driven guide plate (6a) with an opposite inclination direction is provided between the slider (6) and the lower driving block (4). The lower pressing portion (1c) abuts against the upper driving block (5), and a flanging insert (7) is provided on the top of the slider (6). A flanging cavity (8) is provided between the flanging insert (7) and the upper pressing plate (1a). A buffer cylinder (1a1) is provided at the bottom of the upper pressing plate (1a), and the bottom end of the buffer cylinder (1a1) can abut against the top of the flanging insert (7).

2. A stamping die and upward flanging mechanism thereof according to claim 1, characterized in that: A limit block (7a) is provided on the top of the slider (6), and a limit rod (1b) is provided on the bottom of the lower die base (2). The limit block (7a) can move upward to abut against the limit rod (1b).

3. A stamping die and upward flanging mechanism thereof according to claim 1, characterized in that: A top block (2b) is provided inside the lower die base (2), and a horizontal nitrogen spring (4a) is provided on one side of the lower driving block (4). The nitrogen spring (4a) is provided on a side of the lower driving block (4) close to the center of the die, and an end of the nitrogen spring (4a) abuts against the top block (2b).

4. A stamping die and upward flanging mechanism thereof according to claim 3, characterized in that: Slidingly connected fixed blocks (10) are provided on both sides of the upper driving block (5) and the lower driving block (4), and the fixed blocks (10) are fixedly connected to the lower die base (2).

5. A stamping die and upward flanging mechanism thereof according to claim 4, characterized in that: A slidingly connected support plate (4b) is provided at the bottom of the lower driving block (4), and the support plate (4b) is fixedly connected to the lower die base (2).

6. A stamping die and upward flanging mechanism thereof according to claim 1, characterized in that: A sliding connection seat (9) is provided on the top of the lower die seat (2), and the connection seat (9) is provided on one side of the forming cavity (3). A plurality of fixed punches (9a) are provided on one side of the connection seat (9).

7. A stamping die and upward flanging mechanism thereof according to claim 6, characterized in that: A die sleeve (2a1) is provided inside the lower die core (2a), the end of the punch (9a) can be inserted into the die sleeve (2a1), and the bottom of the die sleeve (2a1) is provided with connected blanking holes (2a2). A plurality of storage boxes (2c) are provided inside the lower die base (2), and the blanking holes (2a2) are located directly above the storage boxes (2c).

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