U-shaped metal part side cutting device

Abstract

The utility model aims to disclose a U-shaped metal piece side cutting device, which relates to the technical field of U-shaped metal piece side cutting and comprises an upper die assembly and a lower die assembly. The first slotting tool comprises a first inclined surface and a second inclined surface, and the second slotting tool comprises a third inclined surface and a fourth inclined surface; the lower die assembly comprises a U-shaped metal piece positioning part, a blanking hole, a first sliding block, a first side cutter, a first reset spring, a second sliding block, a second side cutter and a second reset spring. The first inclined surface is matched with the fifth inclined surface, and the second inclined surface is matched with the sixth inclined surface; the side cutting device has the technical effects that the upper die assembly drives the first slotting tool and the second slotting tool to move downwards synchronously, the first sliding block drives the first side cutting tool to move towards the first side of the U-shaped metal piece and cut laterally, and the second sliding block drives the second side cutting tool to move towards the second side of the U-shaped metal piece and cut laterally; the two sides of the U-shaped metal piece are symmetrically punched respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of side cutting of U-shaped metal parts, in particular to a side cutting device for U-shaped metal parts. Background Art

[0002] With the rapid development of 3C electronics, precision machining, etc., the shapes of metal sheets are diverse. In special cases, symmetric punching is required on the two vertical parts of the U-shaped metal part. Currently, the difficulty lies in that when performing side symmetric punching, the two vertical parts of the U-shaped metal part are easily pressed and bent and deformed, resulting in quality defects.

[0003] In view of this, it is necessary to develop a side cutting device for U-shaped metal parts. Summary of the Invention

[0004] To solve the above technical problems, the purpose of the utility model is to disclose a side cutting device for U-shaped metal parts.

[0005] To achieve the above invention purpose, the utility model provides a side cutting device for U-shaped metal parts, including an upper die assembly and a lower die assembly;

[0006] The upper die assembly includes a first cutting knife and a second cutting knife symmetrically arranged. The first cutting knife includes a first inclined surface and a second inclined surface, and the second cutting knife includes a third inclined surface and a fourth inclined surface;

[0007] The lower die assembly includes a U-shaped metal part positioning portion, a blanking hole, a first slider, a first side cutting knife, a first return spring, a second slider, a second side cutting knife and a second return spring;

[0008] The first slider is provided with a first defective portion, and the first defective portion is provided with a fifth inclined surface and a sixth inclined surface. The first inclined surface cooperates with the fifth inclined surface, and the second inclined surface cooperates with the sixth inclined surface;

[0009] The second slider is provided with a second defective portion, and the second defective portion is provided with a seventh inclined surface and an eighth inclined surface. The third inclined surface cooperates with the seventh inclined surface, and the fourth inclined surface cooperates with the eighth inclined surface;

[0010] The first slider drives the first side cutting knife to approach or move away from the first side of the U-shaped metal part;

[0011] The second slider drives the second side cutting knife to approach or move away from the second side of the U-shaped metal part.

[0012] Preferably, the upper die assembly includes an upper die base, a stop plate and an upper template.

[0013] Preferably, the lower die assembly includes a lower die base and a stripping assembly.

[0014] Preferably, the first inserting tool is provided with a first avoiding portion, and the second inclined surface is disposed on the first avoiding portion;

[0015] The second inserting tool is provided with a second avoiding portion, and the fourth inclined surface is disposed on the second avoiding portion.

[0016] Preferably, the first inclined surface and the second inclined surface are parallel;

[0017] The third inclined surface and the fourth inclined surface are parallel.

[0018] Preferably, hollowed portions allowing waste materials to pass through are respectively disposed on two sides of the top of the blanking hole.

[0019] Preferably, the U-shaped metal part positioning portion includes a first groove body and a second groove body, and two sides of the U-shaped metal part are respectively positioned in the first groove body and the second groove body.

[0020] Preferably, the blanking hole is disposed between the first groove body and the second groove body.

[0021] Preferably, when the first inserting tool ascends, the second inclined surface and the sixth inclined surface cooperate to drive the first slider away from the U-shaped metal part, and the first return spring synchronously drives the first slider away from the U-shaped metal part.

[0022] Preferably, when the second inserting tool ascends, the fourth inclined surface and the eighth inclined surface cooperate to drive the second slider away from the U-shaped metal part, and the second return spring synchronously drives the second slider away from the U-shaped metal part.

[0023] Compared with the prior art, the technical effects of the present utility model are as follows:

[0024] After the U-shaped metal part of the present utility model is positioned, the upper die assembly drives the first inserting tool and the second inserting tool to move downward synchronously. The first inclined surface and the fifth inclined surface cooperate and drive the first side cutting tool to move towards the first side of the U-shaped metal part and perform side cutting through the first slider. The third inclined surface and the seventh inclined surface cooperate and drive the second side cutting tool to move towards the second side of the U-shaped metal part and perform side cutting through the second slider, so as to symmetrically punch holes on two sides of the U-shaped metal part respectively. The waste materials formed by punching enter the blanking hole under the action of gravity; during side cutting, the U-shaped metal part positioning portion restricts two sides of the U-shaped metal part, and the U-shaped metal part will not be deformed. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic cross-sectional view of the U-shaped metal part side cutting device of the present utility model.

[0027] Figure 2 It is the present utility model Figure 1 Schematic enlarged structure view of part A.

[0028] Figure 3 It is a schematic view of the cooperation between the plug cutter and the slider of the present utility model.

[0029] Among them, 1. Upper die assembly; 11. Upper die base; 12. Stop baffle; 13. Upper template; 2. Lower die assembly; 21. U-shaped metal part positioning part; 211. First groove; 212. Second groove; 22. Blanking hole; 23. First slider; 231. First defective part; 2311. Fifth inclined surface; 2312. Sixth inclined surface; 24. First side cutter; 25. First return spring; 26. Second slider; 261. Second defective part; 2611. Seventh inclined surface; 2612. Eighth inclined surface; 27. Second side cutter; 28. Second return spring; 29. Lower die base; 30. Stripping assembly; 3. First plug cutter; 31. First inclined surface; 32. Second inclined surface; 33. First avoidance part; 4. Second plug cutter; 41. Third inclined surface; 42. Fourth inclined surface; 43. Second avoidance part; 5. U-shaped metal part; 6. Scrap. Specific embodiments

[0030] The following will describe the present utility model in detail in conjunction with the embodiments shown in the drawings. However, it should be noted that these embodiments are not limitations on the present utility model. Any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0032] Embodiment 1

[0033] Refer Figures 1 to 3 As shown, this embodiment discloses a specific implementation manner of a U-shaped metal part side cutting device.

[0034] This embodiment provides a U-shaped metal part side cutting device. Refer Figures 1 to 3 As shown, it includes an upper die assembly 1 and a lower die assembly 2; the upper die assembly 1 includes a symmetrically arranged first cutting knife 3 and a second cutting knife 4, the first cutting knife 3 includes a first inclined surface 31 and a second inclined surface 32, and the second cutting knife 4 includes a third inclined surface 41 and a fourth inclined surface 42; the lower die assembly 2 includes a U-shaped metal part positioning portion 21, a blanking hole 22, a first slider 23, a first side cutting knife 24, a first return spring 25, a second slider 26, a second side cutting knife 27 and a second return spring 28; the first slider 23 is provided with a first defect portion 231, the first defect portion 231 is provided with a fifth inclined surface 2311 and a sixth inclined surface 2312, the first inclined surface 31 cooperates with the fifth inclined surface 2311, and the second inclined surface 32 cooperates with the sixth inclined surface 2312; the second slider 26 is provided with a second defect portion 261, the second defect portion 261 is provided with a seventh inclined surface 2611 and an eighth inclined surface 2612, the third inclined surface 41 cooperates with the seventh inclined surface 2611, and the fourth inclined surface 42 cooperates with the eighth inclined surface 2612; the first slider 23 drives the first side cutting knife 24 to approach or move away from the first side of the U-shaped metal part 5; the second slider 26 drives the second side cutting knife 27 to approach or move away from the second side of the U-shaped metal part 5.

[0035] Specifically, refer to Figures 1 to 3, the upper die assembly 1 includes an upper die base 11, a stop plate 12 and an upper template 13, and the lower die assembly 2 includes a lower die base 29 and a stripping assembly 30; the first insert knife 3 is provided with a first avoidance portion 33, and the second inclined surface 32 is arranged in the first avoidance portion 33; the second insert knife 4 is provided with a second avoidance portion 43, and the fourth inclined surface 42 is arranged in the second avoidance portion 43; to ensure that the left and right moving distances of the first slider 23 are the same, the first inclined surface 31 and the second inclined surface 32 are parallel, and to ensure that the left and right moving distances of the second slider 26 are the same, the third inclined surface 41 and the fourth inclined surface 42 are parallel; both sides of the top of the blanking hole 22 are respectively provided with hollowed-out portions allowing waste materials to pass through; the U-shaped metal part positioning portion 21 includes a first groove body 211 and a second groove body 212, and both sides of the U-shaped metal part 5 are respectively positioned in the first groove body 211 and the second groove body 212; the blanking hole 22 is arranged between the first groove body 211 and the second groove body 212.

[0036] See Figure 2 , Figure 2 is the closed die state of the upper die assembly 1 and the lower die assembly 2. When the upper die assembly 1 descends, it drives the first insert knife 3 and the second insert knife 4 to move downward synchronously. The first inclined surface 31 and the fifth inclined surface 2311 cooperate and drive the first side cutting knife 24 to move towards the first side of the U-shaped metal part 5 and perform side cutting through the first slider 23. The third inclined surface 41 and the seventh inclined surface 2611 cooperate and drive the second side cutting knife 27 to move towards the second side of the U-shaped metal part 5 and perform side cutting through the second slider 26, so as to symmetrically punch holes on both sides of the U-shaped metal part 5 respectively. The waste materials 6 formed by punching enter the blanking hole 22 under the action of gravity; during side cutting, the U-shaped metal part positioning portion 21 restrains the bottoms of both sides of the U-shaped metal part 5, and the U-shaped metal part 5 will not deform, and the punching quality is high.

[0037] See Figure 3 , Figure 3It is a schematic diagram of the separation of the inserting knife and the slider. When the upper die assembly 1 rises, it drives the first inserting knife 3 and the second inserting knife 4 to move upward synchronously. The second inclined surface 32 cooperates with the sixth inclined surface 2312 and drives the first side cutting knife 24 away from the first side of the U-shaped metal part 5 through the first slider 23. The fourth inclined surface 42 cooperates with the eighth inclined surface 2612 and drives the second side cutting knife 27 away from the second side of the U-shaped metal part 5 through the second slider 26, realizing the synchronous separation of the first side cutting knife 24 and the second side cutting knife 27 from the U-shaped metal part 5; Synchronously, the first return spring 25 drives the first slider 23 away from the U-shaped metal part 5 synchronously, and the second return spring 28 drives the second slider 26 away from the U-shaped metal part 5 synchronously; Under the cooperation of the second inclined surface 32 and the sixth inclined surface 2312, and under the reset action of the first return spring 25, the first side cutting knife 24 is easily separated from the U-shaped metal part 5, effectively preventing the mold from bursting; Similarly, under the cooperation of the fourth inclined surface 42 and the eighth inclined surface 2612, and under the reset action of the second return spring 28, the second side cutting knife 27 is easily separated from the U-shaped metal part 5, effectively preventing the mold from bursting.

Claims

1. U-shaped metal side cutting device, characterized in that: It includes an upper mold assembly and a lower mold assembly; The upper mold assembly includes a first plunger and a second plunger that are symmetrically arranged, the first plunger includes a first inclined surface and a second inclined surface, and the second plunger includes a third inclined surface and a fourth inclined surface; The lower die assembly includes a U-shaped metal part positioning portion, a blanking hole, a first slider, a first side cutter, a first return spring, a second slider, a second side cutter and a second return spring; The first sliding block is provided with a first defective portion, the first defective portion is provided with a fifth inclined surface and a sixth inclined surface, the first inclined surface matches the fifth inclined surface, and the second inclined surface matches the sixth inclined surface; The second sliding block is provided with a second defective portion, the second defective portion is provided with a seventh inclined surface and an eighth inclined surface, the third inclined surface matches with the seventh inclined surface, and the fourth inclined surface matches with the eighth inclined surface; The first slide block drives the first side cutter to move closer to or away from the first side of the U-shaped metal piece; The second sliding block drives the second side cutter to approach or move away from the second side of the U-shaped metal piece.

2. The U-shaped metal side cutting device according to claim 1, characterized in that: The upper die assembly comprises an upper die seat, a stop plate and an upper die plate.

3. The U-shaped metal side cutting device according to claim 1, characterized in that: The lower die assembly comprises a lower die base and a stripping assembly.

4. The U-shaped metal side cutting device according to any one of claims 1 to 3, characterized in that: The first inserting blade is provided with a first avoidance portion, and the second inclined surface is provided on the first avoidance portion; The second inserting blade is provided with a second avoidance portion, and the fourth inclined surface is provided on the second avoidance portion.

5. The U-shaped metal side cutting device according to claim 4, characterized in that: The first inclined surface is parallel to the second inclined surface; The third inclined surface is parallel to the fourth inclined surface.

6. The U-shaped metal side cutting device according to claim 4, characterized in that: Hollow parts are respectively arranged on both sides of the top of the blanking hole to allow waste to pass through.

7. The U-shaped metal side cutting device according to claim 4, characterized in that: The U-shaped metal member positioning portion includes a first slot body and a second slot body, and two sides of the U-shaped metal member are respectively positioned in the first slot body and the second slot body.

8. The U-shaped metal side cutting device according to claim 7, characterized in that: The blanking hole is arranged between the first trough body and the second trough body.

9. The U-shaped metal side cutting device according to claim 4, characterized in that: When the first insert knife rises, the second inclined surface cooperates with the sixth inclined surface to drive the first slider away from the U-shaped metal part, and the first return spring synchronously drives the first slider away from the U-shaped metal part.

10. The U-shaped metal side cutting device according to claim 4, characterized in that: When the second insert knife rises, the fourth inclined surface cooperates with the eighth inclined surface to drive the second slider away from the U-shaped metal part, and the second return spring synchronously drives the second slider away from the U-shaped metal part.

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