A combined sheet metal bending die

Abstract

The utility model relates to the technical field of bending dies, and specifically discloses a combined sheet metal bending die, comprising: a base, a lower die and an upper die, wherein the lower die is detachably mounted on the upper end of the base, and the upper die is mounted on the upper end of the lower die, an installation cavity is provided on the upper end of the base, both left and right ends of the base are slidably connected with sliders, a pressure plate is fixedly mounted on the upper end of the slider, the lower die is located in the installation cavity and is fixed by the pressure plate, the upper die is slidably mounted on the upper end of the base by a vertical rod, and a driving rod is detachably mounted on the upper end of the upper die, the slider is slidably arranged on both sides of the upper end of the base, when a second spring is in a balanced state, the slider is located at the innermost side of the sliding cavity, the pressure plate fixes the lower die in the installation cavity, the slider can be moved outward by a second compression spring through a shifting block, and the pressure plate and the lower die are separated, so as to facilitate the disassembly and assembly and replacement of the lower die.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, in particular to a combined sheet metal bending die. Background Art

[0002] Bending machine mold is a tool used by bending machines to shape and process sheet materials. This tool is composed of various parts. Different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the formed material. It is used to make the blank into a part with a specific shape and size under the pressure of the bending machine.

[0003] The bending machine is generally composed of an upper die and a lower die, but it is not easy to disassemble the die of a common bending machine. Since the bending machine often needs to replace or repair the die during use, there are certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a combined sheet metal bending die to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined sheet metal bending die, comprising: a base, a lower die and an upper die, the lower die is detachably mounted on the upper end of the base, the upper die is mounted on the upper end of the lower die, an installation cavity is provided on the upper end of the base, both left and right ends of the base are slidably connected with sliders, a pressing plate is fixedly mounted on the upper end of the slider, and the lower die is located in the installation cavity and fixed by the pressing plate;

[0006] The upper mold is slidably mounted on the upper end of the base through a vertical rod, and a driving rod is detachably mounted on the upper end of the upper mold.

[0007] Preferably, a sliding cavity is opened on both sides of the upper end of the base, and a mounting groove is opened at the outer end of the sliding cavity. The sliding cavity and the sliding block are both convex, one end of the sliding block is slidably inserted into the sliding cavity, and the upper end of the sliding block passes through the sliding cavity and is fixedly connected to the lower end of the pressure plate.

[0008] Preferably, a second spring is fixedly mounted on one end of the slider, a blocking plate is fixedly mounted in the mounting groove by bolts, and the other end of the second spring is fixedly connected to the inner end of the blocking plate.

[0009] Preferably, the front and rear ends of the left and right sides of the upper end of the base are provided with limiting grooves, and the front and rear ends of the left and right sides of the lower end of the lower mold are fixedly installed with limiting blocks.

[0010] Preferably, when the lower mold is located in the installation cavity, the limiting block is slidably inserted into the limiting groove.

[0011] Preferably, threaded holes are provided on four sides of the upper end of the base, and a vertical rod is threadedly connected in each threaded hole.

[0012] Preferably, connecting rods are fixedly mounted on the four ends of the upper mold, and a sliding sleeve is fixedly mounted on one end of the connecting rod away from the upper mold, and the sliding sleeve is slidably mounted on the outer wall of the vertical rod.

[0013] Preferably, a mounting block is fixedly mounted on the upper end of the upper mold, and a fixing plate is fixedly mounted on the lower end of the driving rod, and the fixing plate is slidably inserted into the mounting block and fixed by bolts.

[0014] Preferably, a mounting hole is provided on the inner wall of the bottom end of the mounting cavity, a through hole is provided on the side wall of the lower mold, a spring 1 is fixedly installed in the mounting hole, a ejector pin is fixedly installed on the upper end of the spring 1, and the upper end of the ejector pin slides through the through hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By slidingly setting a slider on both sides of the upper end of the base, when the second spring is in a balanced state, the slider is located at the innermost side of the sliding cavity, and the pressing plate fixes the lower mold in the installation cavity. The slider can be moved outward through the compression spring 2 by the shifting block, and the pressing plate and the lower mold are separated, which facilitates the disassembly and replacement of the lower mold.

[0017] By fixing a mounting block on the upper end of the upper mold and fixing a fixing plate on the lower end of the driving rod, the fixing plate is slidably inserted into the mounting block and fixed by bolts, so as to facilitate the disassembly and assembly of the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the upper mold structure of the utility model;

[0021] Figure 4 For this utility model Figure 1 A magnified view of the structure of the middle A area;

[0022] Figure 5 For this utility model Figure 1 A magnified view of the structure of region B.

[0023] In the figure: 1. base; 2. mounting cavity; 3. mounting hole; 4. sliding cavity; 5. mounting groove; 6. limiting groove; 7. threaded hole; 9. spring 1; 10. ejector pin; 11. slider; 12. pressure plate; 13. spring 2; 14. blocking plate; 15. lower mold; 16. limiting block; 17. through hole; 18. vertical pole; 19. upper mold; 20. mounting block; 21. connecting rod; 22. sliding sleeve; 23. driving rod; 24. fixing plate. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 The utility model provides a technical solution: a combined sheet metal bending mold, including: a base 1, a lower mold 15 and an upper mold 19, the lower mold 15 is detachably mounted on the upper end of the base 1, the upper mold 19 is located at the upper end of the lower mold 15, the upper end of the base 1 is provided with a mounting cavity 2, the left and right ends of the base 1 are slidably connected with sliders 11, the upper end of the slider 11 is fixedly provided with a pressing plate 12, the lower mold 15 is located in the mounting cavity 2 and is fixed by the pressing plate 12, the left and right sides of the upper end of the base 1 are provided with sliding cavities 4, the outer end of the sliding cavity 4 is provided with a mounting groove 5, the sliding cavity 4 and the slider 11 are both convex, one end of the slider 11 is slidably inserted into the sliding cavity 4, and the slider The upper end of 11 passes through the sliding cavity 4 and is fixedly connected to the lower end of the pressure plate 12. Slopes are provided on the left and right sides of the upper end of the pressure plate 12. A shift block is fixedly installed at the center of the upper end of the pressure plate 12. A spring 2 13 is fixedly installed at one end of the slider 11. A sealing plate 14 is fixedly installed in the mounting groove 5 by bolts. The other end of the spring 2 13 is fixedly connected to the inner end of the sealing plate 14. When the spring 2 13 is in a balanced state, the slider 11 is located at the innermost side of the sliding cavity 4. The pressure plate 12 can fix the lower mold 15 in the mounting cavity 2. The slider 11 can be moved outward by compressing the spring 2 13 through the shift block, and the pressure plate 12 and the lower mold 15 can be separated, so as to facilitate the disassembly and assembly of the lower mold 15.

[0026] Limiting grooves 6 are provided at the front and rear ends on both sides of the upper end of the base 1, and limiting blocks 16 are fixedly installed at the front and rear ends on both sides of the lower end of the lower mold 15. When the lower mold 15 is located in the installation cavity 2, the limiting blocks 16 are slidably inserted into the limiting grooves 6 to fix the lower mold 15 and prevent the lower mold 15 from moving in the installation cavity 2.

[0027] The upper mold 19 is slidably mounted on the upper end of the base 1 through the vertical rod 18. The upper end of the base 1 is provided with threaded holes 7 on four sides. The vertical rod 18 is threadedly connected in each threaded hole 7. The four ends of the upper mold 19 are fixedly mounted with connecting rods 21. The end of the connecting rod 21 away from the upper mold 19 is fixedly mounted with a sliding sleeve 22. The sliding sleeve 22 is slidably sleeved on the outer wall of the vertical rod 18.

[0028] A driving rod 23 is detachably mounted on the upper end of the upper mold 19, a mounting block 20 is fixedly mounted on the upper end of the upper mold 19, a fixing plate 24 is fixedly mounted on the lower end of the driving rod 23, the fixing plate 24 is slidably inserted into the mounting block 20 and fixed by bolts, so as to facilitate the disassembly and assembly of the upper mold 19. By connecting the driving rod 23 at the upper end of the upper mold 19 to an external driving device, the upper mold 19 can be driven to move on the upper end of the lower mold 15 through the driving device.

[0029] A mounting hole 3 is provided on the inner wall at the bottom end of the mounting cavity 2, a through hole 17 is provided on the side wall of the lower mold 15, a spring 9 is fixedly installed in the mounting hole 3, an ejector pin 10 is fixedly installed on the upper end of the spring 9, the upper end of the ejector pin 10 slides through the through hole 17, and a workpiece to be stamped is placed in the lower mold 15, and the upper mold 19 is driven by a driving device to stamp the workpiece. The workpiece is stamped and formed between the upper mold 19 and the lower mold 15. During the forming process, the workpiece squeezes the ejector pin 10, and the ejector pin 10 moves downward by compressing the spring 9. After the stamping is completed, the ejector pin 10 is ejected upward under the reaction force of the spring 9, and the ejector pin 10 pushes the stamped workpiece away from the lower mold for easy demoulding.

[0030] In actual use, the appropriate lower mold 15 and upper mold 19 are selected according to the workpiece to be stamped, and the driving rod 23 is connected to the external driving device, and then the workpiece to be stamped is placed in the lower mold 15, and the upper mold 19 is driven by the driving device to stamp the workpiece. The workpiece is stamped and formed between the upper mold 19 and the lower mold 15, and then the driving device moves the upper mold 19 upward and resets. Under the reaction force of the spring 9, the ejector pin 10 is ejected upward, and the ejector pin 10 pushes the stamped workpiece away from the lower mold to facilitate demolding.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined sheet metal bending die, comprising: A base (1), a lower mold (15) and an upper mold (19), wherein the lower mold (15) is detachably mounted on the upper end of the base (1), and the upper mold (19) is mounted on the upper end of the lower mold (15), characterized in that: an installation cavity (2) is provided at the upper end of the base (1), and sliders (11) are slidably connected to the left and right ends of the base (1), and a pressing plate (12) is fixedly mounted on the upper end of the slider (11), and the lower mold (15) is located in the installation cavity (2) and fixed by the pressing plate (12); The upper mold (19) is slidably mounted on the upper end of the base (1) via a vertical rod (18), and a driving rod (23) is detachably mounted on the upper end of the upper mold (19).

2. The combined sheet metal bending die according to claim 1, characterized in that: The upper left and right sides of the base (1) are provided with sliding cavities (4), and the outer end of the sliding cavity (4) is provided with a mounting groove (5). The sliding cavity (4) and the sliding block (11) are both convex, and one end of the sliding block (11) is slidably inserted into the sliding cavity (4), and the upper end of the sliding block (11) passes out of the sliding cavity (4) and is fixedly connected to the lower end of the pressure plate (12).

3. The combined sheet metal bending die according to claim 2, characterized in that: A second spring (13) is fixedly mounted on one end of the slider (11), a blocking plate (14) is fixedly mounted in the mounting groove (5) by means of bolts, and the other end of the second spring (13) is fixedly connected to the inner end of the blocking plate (14).

4. The combined sheet metal bending die according to claim 3, characterized in that: The front and rear ends of the left and right sides of the upper end of the base (1) are both provided with limiting grooves (6), and the front and rear ends of the left and right sides of the lower end of the lower mold (15) are both fixedly installed with limiting blocks (16).

5. The combined sheet metal bending die according to claim 4, characterized in that: When the lower mold (15) is located in the installation cavity (2), the limiting block (16) is slidably inserted into the limiting groove (6).

6. The combined sheet metal bending die according to claim 5, characterized in that: The four sides of the upper end of the base (1) are provided with threaded holes (7), and each threaded hole (7) is threadedly connected with a vertical rod (18).

7. The combined sheet metal bending die according to claim 6, characterized in that: The four ends of the upper mold (19) are all fixedly mounted with connecting rods (21), and one end of the connecting rod (21) away from the upper mold (19) is fixedly mounted with a sliding sleeve (22), which is slidably sleeved on the outer wall of the vertical rod (18).

8. The combined sheet metal bending die according to claim 7, characterized in that: A mounting block (20) is fixedly mounted on the upper end of the upper mold (19), and a fixing plate (24) is fixedly mounted on the lower end of the driving rod (23). The fixing plate (24) is slidably inserted into the mounting block (20) and fixed by bolts.

9. The combined sheet metal bending die according to claim 8, characterized in that: A mounting hole (3) is provided on the inner wall at the bottom end of the mounting cavity (2), a through hole (17) is provided on the side wall of the lower mold (15), a spring (9) is fixedly installed in the mounting hole (3), an ejector pin (10) is fixedly installed at the upper end of the spring (9), and the upper end of the ejector pin (10) slides through the through hole (17).

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