Bending die

Abstract

The utility model relates to the field of stamping dies, in particular to a bending die which comprises a lower die assembly and an upper die assembly, the lower die assembly comprises a lower die base, an adjusting block and an abutting block, the adjusting block and the abutting block are arranged on the two sides of the lower die base respectively, gaps are formed among the adjusting block, the abutting block and the lower die base, and a first bending part is arranged on the side, close to the adjusting block, of the lower die base. The side, close to the abutting block, of the lower die base is provided with a first guide inclined face, the side, close to the lower die base, of the adjusting block is provided with a second guide inclined face, the lower die base can move transversely to be close to or away from the adjusting block, and the upper die assembly comprises a material pressing block, a movable side inserting punch, a fixing base and a movable swing block. Through cooperation of the upper die assembly and the lower die base assembly, a product can be bent and formed at a time, the number of working procedures is reduced, errors of formed workpieces are reduced, and the product quality and the bending efficiency are improved.

Description

Technical Field

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

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts.

[0003] Existing stamping and bending dies require multiple steps to bend workpieces, increasing the number of processes, consuming more manpower and resources, and the multiple processes can easily lead to large errors in the workpieces, resulting in resource waste. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A bending die includes a lower die assembly and an upper die assembly. The lower die assembly includes a lower die base, an adjusting block, and a stop block. The adjusting block and the stop block are respectively disposed on both sides of the lower die base, and there is a gap between the three. A first bending portion is provided on the side of the lower die base near the adjusting block, and a first guide slope is provided on the side of the lower die base near the stop block. A second guide slope is provided on the side of the adjusting block near the lower die base. The lower die base can move laterally closer to or away from the adjusting block. The upper die assembly includes a pressure block, a movable side punch, a fixed base, and a movable swing block. The movable side punch and the fixed base are respectively disposed on both sides of the pressure block, and there is a gap between the movable side punch and the pressure block. A third guide slope is provided at the lower end of the movable side punch for cooperating with the first guide slope. The movable swing block is rotatably disposed at the lower end of the fixed base. A fourth guide slope is provided on the side of the movable swing block away from the pressure block for cooperating with the second guide slope. A second bending portion is provided on the side of the movable swing block near the pressure block.

[0006] As a further embodiment of this utility model: the first bending part includes a first side surface connected to the first horizontal plane, a first arc surface is provided at the connection between the first horizontal plane and the first side surface, and a first forming groove is provided on the first side surface.

[0007] As a further embodiment of this utility model: the second bending portion includes a second side surface connected to the second horizontal plane, a second arc surface is provided at the connection between the second horizontal plane and the second side surface, and a second forming groove is provided on the second side surface.

[0008] As a further embodiment of this utility model: the first forming groove has a forming inclined surface, and the angle between the forming inclined surface and the first horizontal plane is 55-60°.

[0009] As a further embodiment of this utility model: the lower end of the fixed base is provided with an installation groove, the installation groove has a first abutting surface and a second abutting surface connected to each other, the connection between the first abutting surface and the second abutting surface is provided with an arc-shaped concave surface, the movable swing block is provided with an arc-shaped protrusion, and the arc-shaped protrusion is embedded in the arc-shaped concave surface.

[0010] As a further embodiment of this utility model: the lower mold base includes a slider and a bending block, a first spring is connected between the slider and the bending block, a first wire inclined surface is disposed on the slider, and a first bending part is disposed on the bending block.

[0011] As a further embodiment of this utility model: a groove is provided on the first abutting surface, and a second spring is provided in the groove, with one end of the second spring protruding out of the groove and connected to the movable swing block.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the bending die provided by this utility model, through the cooperation of the upper die assembly and the lower die base assembly, enables the product to be bent and formed in one step, reduces the number of processes, reduces the error of the formed workpiece, and improves product quality and bending efficiency.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is another structural schematic diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the first forming groove part of this utility model.

[0018] Figure 4 This is a schematic diagram of the second forming groove part of this utility model.

[0019] Figure 5This is a schematic diagram of the mounting groove part of this utility model.

[0020] In the diagram: 1. Lower die base, 2. Adjusting block, 3. Abutment block, 4. First bending section, 5. First guide slope, 6. Second guide slope, 7. Pressure block, 8. Movable side punch, 9. Fixed base, 10. Movable swing block, 11. Third guide slope, 12. Fourth guide slope, 13. Second bending section, 14. First horizontal surface, 15. First side surface, 16. First arc surface, 17. First forming groove, 18. Second horizontal surface, 19. Second side surface, 20. Second arc surface, 21. Second forming groove, 22. Forming slope, 23. Mounting groove, 24. First abutment surface, 25. Second abutment surface, 26. Arc-shaped concave surface, 27. Arc-shaped protrusion, 28. Slider, 29. Bending block, 30. First spring, 31. Groove, 32. Second spring. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Please see Figures 1-5 In this embodiment of the present invention, a bending die includes a lower die assembly and an upper die assembly. The lower die assembly includes a lower die base 1, an adjusting block 2, and abutting block 3. The adjusting block 2 and abutting block 3 are respectively disposed on both sides of the lower die base 1, and there is a gap between the three. A first bending portion 4 is provided on the side of the lower die base 1 near the adjusting block 2, and a first guide slope 5 is provided on the side of the lower die base 1 near the abutting block 3. A second guide slope 6 is provided on the side of the adjusting block 2 near the lower die base 1. The lower die base 1 can move laterally closer to or away from the adjusting block 2. The upper die assembly includes a pressure block 7. The movable side-inserting punch 8, the fixed seat 9, and the movable swing block 10 are respectively arranged on both sides of the pressure block 7. There is a gap between the movable side-inserting punch 8 and the pressure block 7. The lower end of the movable side-inserting punch 8 is provided with a third guide slope 11 for cooperating with the first guide slope 5. The movable swing block 10 is rotatably arranged at the lower end of the fixed seat 9. The side of the movable swing block 10 away from the pressure block 7 is provided with a fourth guide slope 12 for cooperating with the second guide slope 6. The side of the movable swing block 10 close to the pressure block 7 is provided with a second bending part 13.

[0023] In use, the workpiece is placed on the lower die base 1, and then the upper die assembly moves toward the lower die assembly, allowing the movable side punch 8 to extend into the gap between the abutment block 3 and the lower die base 1. During this process, the first guide slope 5 and the third guide slope 11 cooperate to push the lower die base 1 toward the direction of the adjusting block 2. As the upper die assembly moves toward the lower die assembly, the movable swing block 10 also extends into the gap between the adjusting block 2 and the lower die base 1. The second guide slope 6 and the fourth guide slope 12 cooperate to push the movable swing block 10 toward the lower die base 1, so that the first bending part 4 and the second bending part 13 move closer to each other, thereby bending the workpiece on the lower die base 1. In this way, by cooperating with the upper die assembly and the lower die base 1 assembly, the product can be bent and formed in one step, reducing the number of processes, reducing the error of the formed product, improving product quality and bending efficiency. It should also be noted that, during use, a shim can be placed at the bottom of the adjusting block 2 according to the processing requirements, and the height position of the second guide slope 6 can be adjusted to achieve the adjustment of the bending angle.

[0024] The first bending part 4 includes a first side surface 15 connected to the first horizontal surface 14, a first arc surface 16 is provided at the connection between the first horizontal surface 14 and the first side surface 15, and a first forming groove 17 is provided on the first side surface 15.

[0025] The second bending portion 13 includes a second side surface 19 connected to the second horizontal surface 18, a second arc surface 20 is provided at the connection between the second horizontal surface 18 and the second side surface 19, and a second forming groove 21 is provided on the second side surface 19.

[0026] Thus, during the bending process, the movable swing block 10 swings toward the lower mold base 1, and the second arc surface 20 pushes the workpiece toward the first forming groove 17 to bend.

[0027] The first forming groove 17 has a forming inclined surface 22, and the angle between the forming inclined surface 22 and the first horizontal surface 14 is 55° to 60°. In this way, the bending effect is guaranteed through reasonable size setting.

[0028] The lower end of the fixed base 9 is provided with a mounting groove 23. The mounting groove 23 has a first abutment surface 24 and a second abutment surface 25 connected to each other. An arc-shaped concave surface 26 is provided at the connection between the first abutment surface 24 and the second abutment surface 25. An arc-shaped protrusion 27 is provided on the movable swing block 10, and the arc-shaped protrusion 27 is embedded in the arc-shaped concave surface 26. The mounting groove 23 provides installation space for the movable swing block 10, and the rotational connection between the movable swing block 10 and the fixed base 9 is realized through the cooperation of the arc-shaped protrusion 27 and the arc-shaped concave surface 26.

[0029] The lower die holder 1 includes a slider 28 and a bending block 29. A first spring 30 connects the slider 28 and the bending block 29. A first guide wire inclined surface is disposed on the slider 28, and a first bending part 4 is disposed on the bending block 29. During the bending process, the first spring 30 can absorb impact and vibration, improve fatigue resistance, and extend service life.

[0030] A groove 31 is provided on the first abutment surface 24, and a second spring 32 is provided in the groove 31. One end of the second spring 32 protrudes from the groove 31 and is connected to the movable swing block 10. After bending, the upper mold assembly is reset and disengaged from the lower mold assembly. Under the action of the second spring 32, the movable swing block 10 swings back to its original position away from the lower mold base 1.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A bending die, characterized in that, include: The lower mold assembly includes a lower mold base, an adjusting block, and a stop block. The adjusting block and the stop block are respectively disposed on both sides of the lower mold base, and there is a gap between the three. The lower mold base has a first bending part on the side near the adjusting block, a first guide slope on the side near the stop block, and a second guide slope on the side near the lower mold base. The lower mold base can move laterally to approach or move away from the adjusting block. The upper die assembly includes a pressure block, a movable side punch, a fixed base, and a movable swing block. The movable side punch and the fixed base are respectively disposed on both sides of the pressure block, and there is a gap between the movable side punch and the pressure block. The lower end of the movable side punch is provided with a third guide slope for cooperating with the first guide slope. The movable swing block is rotatably disposed at the lower end of the fixed base. The side of the movable swing block away from the pressure block is provided with a fourth guide slope for cooperating with the second guide slope. The side of the movable swing block near the pressure block is provided with a second bending part.

2. A bending die according to claim 1, characterized in that: The first bending portion includes a first side surface connected to a first horizontal plane, a first arc surface at the connection between the first horizontal plane and the first side surface, and a first forming groove on the first side surface.

3. A bending die according to claim 1, characterized in that: The second bending portion includes a second side surface connected to the second horizontal plane, a second arc surface is provided at the connection between the second horizontal plane and the second side surface, and a second forming groove is provided on the second side surface.

4. A bending die according to claim 2, characterized in that: The first forming groove has a forming inclined surface, and the angle between the forming inclined surface and the first horizontal plane is 55-60°.

5. A bending die according to claim 1, characterized in that: The lower end of the fixed base is provided with a mounting groove, which has a first abutment surface and a second abutment surface connected to each other. The connection between the first abutment surface and the second abutment surface is provided with an arc-shaped concave surface. The movable swing block is provided with an arc-shaped protrusion, which is embedded in the arc-shaped concave surface.

6. A bending die according to claim 1, characterized in that: The lower mold base includes a slider and a bending block. A first spring connects the slider and the bending block. A first guide wire inclined surface is disposed on the slider, and a first bending part is disposed on the bending block.

7. A bending die according to claim 5, characterized in that: The first abutment surface has a groove, and a second spring is installed in the groove. One end of the second spring protrudes from the groove and is connected to the movable swing block.

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