Slide side-cut piercing forming device

Abstract

The application discloses a slider type side cutting and piercing forming device which comprises an upper die assembly, a stripping assembly and a lower die assembly; the upper die assembly comprises a first punch, the bottom of the first punch is provided with a first defect part which is profiled with a first vertical surface, a first horizontal surface, a first inclined surface, a second horizontal surface, a second vertical surface, a second inclined surface and a third vertical surface; the stripping assembly comprises a stripping plate, a second punch and a slider which is slidingly arranged through the second punch; one end of the slider is provided with a second defect part which is profiled with a third horizontal surface, a fourth vertical surface, a fourth horizontal surface, a third inclined surface, a fifth horizontal surface, a fifth vertical surface and a fourth inclined surface; the other end of the slider is provided with an L-shaped cutter head; the technical effects of the application are as follows: through cooperation of the second punch, the slider and the first punch, stamping and stretching and side wall hole digging are realized in the same set of equipment, forming process steps are reduced, and product efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of metal sheet forming technology, and in particular to a slider-type side-cutting and piercing forming device. Background Technology

[0002] With the rapid development of 3C electronics, there is a need to form metal sheets into various shapes. When stretching metal sheets into semi-finished products with rectangular grooves, and when it is necessary to cut rectangular holes in the sidewalls of the rectangular grooves, the current process involves first forming the rectangular grooves, and then using another process to cut the holes in the sidewalls of the rectangular grooves. This process is technically complex. In addition, when cutting rectangular holes, the existing molds are not precise enough, resulting in excessive interference and frictional resistance on the side-cutting head during the cutting process. The side-cutting head is prone to breakage, making continuous mass production impossible.

[0003] To address the aforementioned shortcomings, it is necessary to develop a slider-type side-cutting and piercing forming device that enables stamping, stretching, and side-cutting perforation to be performed within the same device, thereby improving production efficiency and yield. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the purpose of this invention is to disclose a slider-type side-cutting and puncturing forming device, which realizes stamping, stretching and side wall hole punching in the same set of devices, reduces the forming process and improves the forming efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides a slider-type side-cutting and puncturing forming device, comprising an upper mold assembly, a stripping assembly, and a lower mold assembly;

[0006] The upper mold assembly includes a first punch, and the bottom of the first punch is provided with a first defect portion with a first vertical surface, a first horizontal surface, a first inclined surface, a second horizontal surface, a second vertical surface, a second inclined surface, and a third vertical surface as its outline;

[0007] The stripping assembly includes a stripping plate, a second punch, and a slider. The second punch is fixedly mounted on the stripping plate, and the slider slidably passes through the second punch. One end of the slider includes a second defect portion with a contour defined by a third horizontal plane, a fourth vertical plane, a fourth horizontal plane, a third inclined plane, a fifth horizontal plane, a fifth vertical plane, and a fourth inclined plane. The first defect portion and the second defect portion are correspondingly arranged. The other end of the slider is provided with an L-shaped cutter head.

[0008] The lower membrane assembly includes a cutting edge, and the bottom of the second punch is correspondingly disposed to the cutting edge.

[0009] Preferably, the lower mold assembly further includes a lower mold fixing block, a lower mold stripping block, and a stripping spring.

[0010] Preferably, the L-shaped cutter head is provided with a C-shaped groove.

[0011] Preferably, the lower side of the C-shaped groove is the blade head.

[0012] Preferably, the L-shaped cutter head is made of tungsten steel.

[0013] Preferably, the cutting edge is a rectangular groove, and the bottom of the second punch extends into the rectangular groove and abuts against the bottom of the product to be formed.

[0014] Preferably, the L-shaped cutter head is aligned with the sidewall of the product to be formed.

[0015] Preferably, the stripper plate is provided with a vertical pressing block, which presses down on the edge of the product to be formed when the L-shaped cutter head is aligned with the side wall of the product to be formed.

[0016] Preferably, the blade head is wedge-shaped.

[0017] Preferably, the slider is provided with a limiting step.

[0018] Compared with the prior art, the technical effects of the present invention are as follows:

[0019] (1) The forming device of the present invention is provided with a first punch and a second punch. The second punch is used to press and stretch the metal sheet into a rectangular groove and press the bottom of the rectangular groove. The second punch drives the slider to move down and aligns its L-shaped cutter head with the side wall of the rectangular groove. The first punch moves the slider towards the side wall through the inclined surface cooperation. The L-shaped cutter head realizes the hole in the side wall of the rectangular groove during the movement. Through the cooperation of the second punch, the slider and the first punch, the stamping and stretching and the side wall hole are realized in the same set of equipment, reducing the forming process steps and improving the finished product efficiency.

[0020] (2) The first punch and the slider are in a beveled fit. The beveled fit has high precision, which ensures that when the L-shaped cutter cuts the side wall of the rectangular groove, the position of the hole in each product is highly consistent. The L-shaped cutter is stable under the friction and interference of the product, making the L-shaped cutter less prone to damage. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 (a) is a schematic diagram of the metal sheet of the present invention being stamped and stretched into a rectangular groove.

[0023] Figure 1(b) is a schematic diagram of the side hole formed by side cutting the sidewall of the rectangular groove of the present invention.

[0024] Figure 2 This is a perspective view of the molding apparatus of the present invention.

[0025] Figure 3 This is a perspective view of the molding apparatus of the present invention.

[0026] Figure 4 This is a perspective view of the molding apparatus of the present invention.

[0027] Figure 5 This is a cross-sectional schematic diagram of the molding device of the present invention in its fully open and closed state.

[0028] Figure 6 This is a cross-sectional schematic diagram of the forming device of the present invention in the state of the stripper plate being pressed down.

[0029] Figure 7 This is a cross-sectional schematic diagram of the molding device of the present invention when it is fully closed.

[0030] Figure 8 This is an enlarged schematic diagram of the structure of the first punch, slider, and second punch of the present invention.

[0031] The components include: 1. Upper die assembly; 11. First punch; 111. First vertical surface; 112. First horizontal surface; 113. First inclined surface; 114. Second horizontal surface; 115. Second vertical surface; 116. Second inclined surface; 117. Third vertical surface; 2. Stripping assembly; 21. Stripping plate; 22. Second punch; 221. Groove; 23. Slider; 231. Third horizontal surface; 232. Fourth vertical surface; 233. Fourth horizontal surface; 234. Third inclined surface; 235. Fifth horizontal surface; 236. Fifth vertical surface; 237. Fourth inclined surface; 238. Limiting step; 24. L-shaped cutter head; 241. C-shaped groove; 25. Vertical pressure block; 251. Frame; 3. Lower die assembly; 31. Cutting edge; 32. Lower die stripping block; 33. Stripping spring; 4. Rectangular groove; 41. Side hole. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationships 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. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 thus should not be construed as a limitation on the present invention.

[0034] Embodiment 1

[0035] Refer Figures 1 to 8 As shown, this embodiment discloses a specific implementation manner of a slider type side cutting and piercing forming device (hereinafter referred to as "device").

[0036] This embodiment provides a slider type side cutting and piercing forming device. Refer Figures 1 to 8 As shown, it includes an upper die assembly 1, a stripping assembly 2 and a lower die assembly 3; the upper die assembly 1 includes a first punch 11, and a first defective part with a contour formed by a first vertical surface 111, a first horizontal surface 112, a first inclined surface 113, a second horizontal surface 114, a second vertical surface 115, a second inclined surface 116 and a third vertical surface 117 is provided at the bottom of the first punch 11; the stripping assembly 2 includes a stripping plate 21, a second punch 22 and a slider 23, the second punch 22 is fixedly arranged on the stripping plate 21, and the slider 23 slidably passes through a groove 221 of the second punch 22; one end of the slider 23 includes a second defective part with a contour formed by a third horizontal surface 231, a fourth vertical surface 232, a fourth horizontal surface 233, a third inclined surface 234, a fifth horizontal surface 235, a fifth vertical surface 236 and a fourth inclined surface 237; the first defective part and the second defective part are arranged corresponding to each other; an L-shaped cutter head 24 is arranged at the other end of the slider 23; the lower die assembly 3 includes a cutting edge part 31, and the bottom of the second punch 22 is arranged corresponding to the cutting edge part 31.

[0037] Specifically, Figure 1 (a) is a schematic cross-sectional view of the metal sheet after being stamped and stretched by the second punch 22, Figure 1 (b) is a schematic cross-sectional view of the metal sheet after being side cut by the L-shaped cutter head 24. The working principle of realizing stamping and stretching and side wall hole digging in the same set of equipment is described below in combination with Figures 2 to 8 As follows: Figure 5 When the forming device is fully opened and the metal sheet to be formed is placed, refer to Figure 6As shown, firstly, the stripper plate 2 of the forming device drives the second punch 22 to press down. Through the cooperation between the bottom of the second punch 22 and the cutting edge 31, since the cutting edge 31 is a rectangular groove, the bottom of the second punch 22 extends into the rectangular groove and abuts against the bottom of the product to be formed, punching and stretching out the rectangular groove 4. At this time, the L-shaped cutter head is aligned with the side wall of the product to be formed (rectangular groove 4), and the lower die stripper block 32 presses down the stripper spring 33. Then, the first punch 11 moves downward under the drive of the upper die assembly 1. The first defect of the first punch 11 and the second defect of the slider 23 cooperate through the inclined surface, causing the slider 23 to move towards the side wall of the rectangular groove 4, through the L-shaped cutter head 24. During the movement, a hole is drilled in the side wall of the rectangular groove 4 to form a side hole 41. Through the cooperation of the second punch 22, the slider 23 and the first punch 11, stamping and stretching and side hole drilling are realized in the same set of equipment, reducing the forming process steps and improving the finished product efficiency. It should be further explained that the slider 23 is provided with a limiting step 238, which can limit the sliding range of the slider 23. When the side cutting hole is completed, when the first punch 11 rises, the slider 23 slides away from the hole position through the inclined surface cooperation and is limited in its range of motion by the limiting step 238. Then the second punch 22 is raised to complete one product stamping, stretching and side cutting hole forming cycle.

[0038] The corresponding arrangement of the first and second defects means that they can cooperate. The cooperation principle between the first and second defects is as follows: See Figure 8The outline of the first defect includes a first vertical surface 111, a first horizontal surface 112, a first inclined surface 113, a second horizontal surface 114, a second vertical surface 115, a second inclined surface 116, and a third vertical surface 117. Specifically, a first protrusion is formed by the first vertical surface 111, the first horizontal surface 112, and the first inclined surface 113; a first groove is formed by the first inclined surface 113, the second horizontal surface 114, and the second vertical surface 115; and a first inclined surface protrusion is formed by the second vertical surface 115, the second inclined surface 116, and the third vertical surface 117. The outline of the second defect includes a third horizontal surface 231, a fourth vertical surface 232, a fourth horizontal surface 233, a third inclined surface 234, a fifth horizontal surface 235, a fifth vertical surface 236, and a fourth inclined surface 237. Specifically, a first protrusion is formed by the third horizontal surface 231, the fourth vertical surface 232, the fourth horizontal surface 233, and the third inclined surface 234. The second groove; the second protrusion is formed by the third inclined surface 234, the fifth horizontal surface 235 and the fifth vertical surface 236; the first inclined surface defect is formed by the fourth inclined surface 237; when the first punch 11 and the slider 23 are engaged, the first protrusion is inserted into the second groove, the second protrusion is inserted into the first groove, and the first inclined surface protrusion engages with the first inclined surface defect. Through the engagement of the inclined surfaces, the downward movement of the first punch 11 is converted into the movement of the slider 23 toward the side wall of the rectangular groove 4, thereby achieving hole drilling in the side wall of the rectangular groove 4 by the L-shaped cutter head 24 during the movement; after the hole drilling is completed, when the first punch 11 moves upward, through the engagement of the first inclined surface protrusion and the first inclined surface defect, the first protrusion disengages from the second groove, and the second protrusion disengages from the first groove, converting the upward movement of the first punch 11 into the movement of the slider 23 away from the side wall of the rectangular groove 4, thereby realizing the disengagement of the L-shaped cutter head 24 from the side hole 41.

[0039] To more smoothly achieve side cutting and complete the hole excavation, see [link / reference]. Figure 8 The L-shaped cutter head 24 is made of tungsten steel, which has high hardness, wear resistance, strength and toughness, making the life of the L-shaped cutter head 24 long enough to achieve mass production. When cutting side holes, in order to prevent interference between the L-shaped cutter head 24 and the top of the rectangular groove 4, a C-shaped groove 241 is provided at the part of the L-shaped cutter head 24 corresponding to the top of the rectangular groove 4. The lower side of the C-shaped groove 241 is the cutter head, which is wedge-shaped. The wedge-shaped cutter head helps the hole formed by the side cutting to gradually become larger and form a rectangular hole, which helps to reduce the cutting resistance.

[0040] In processing metal sheets with rectangular grooves 4 and side holes, to facilitate continuous mass production, longer metal sheets are stamped and side-cut in the apparatus of this embodiment, as detailed below. Figures 2 to 4To prevent the formed product from lifting or shifting during side cutting, a vertical pressure block 25 is provided on the stripper plate 21. When the L-shaped cutter head 24 is aligned with the side wall of the product to be formed, the vertical pressure block 25 presses down on the frame 251 of the product to be formed. When the L-shaped cutter head makes a hole in the side, the vertical pressure block 25 can effectively prevent the product from lifting or shifting during side cutting, so as to prevent the hole position from deviating.

Claims

1. A slider-type side-cutting and piercing forming device, characterized in that, Includes upper mold assembly, stripper assembly, and lower mold assembly; The upper mold assembly includes a first punch, and the bottom of the first punch is provided with a first defect portion with a first vertical surface, a first horizontal surface, a first inclined surface, a second horizontal surface, a second vertical surface, a second inclined surface, and a third vertical surface as its outline; The stripping assembly includes a stripping plate, a second punch, and a slider. The second punch is fixedly mounted on the stripping plate, and the slider slidably passes through the second punch. One end of the slider includes a second defect portion with a contour defined by a third horizontal plane, a fourth vertical plane, a fourth horizontal plane, a third inclined plane, a fifth horizontal plane, a fifth vertical plane, and a fourth inclined plane. The first defect portion and the second defect portion are correspondingly arranged. The other end of the slider is provided with an L-shaped cutter head. The lower die assembly includes a cutting edge portion, and the bottom of the second punch is correspondingly disposed with the cutting edge portion; A first protrusion is formed by a first vertical surface, a first horizontal surface, and a first inclined surface; a first groove is formed by a first inclined surface, a second horizontal surface, and a second vertical surface; and a first inclined surface protrusion is formed by a second vertical surface, a second inclined surface, and a third vertical surface. A second groove is formed by a third horizontal plane, a fourth vertical plane, a fourth horizontal plane, and a third inclined plane; a second protrusion is formed by a third inclined plane, a fifth horizontal plane, and a fifth vertical plane; a first inclined plane defect is formed by a fourth inclined plane; when the first punch and the slider are engaged, the first protrusion is inserted into the second groove, the second protrusion is inserted into the first groove, and the first inclined plane protrusion engages with the first inclined plane defect. Through the engagement of the inclined planes, the downward movement of the first punch is converted into the movement of the slider towards the side wall of the rectangular groove, thereby achieving hole drilling on the side wall of the rectangular groove by the L-shaped cutter head during the movement; after the hole drilling is completed, when the first punch moves upward, through the engagement of the first inclined plane protrusion with the first inclined plane defect, the first protrusion disengages from the second groove, and the second protrusion disengages from the first groove, converting the upward movement of the first punch into the movement of the slider away from the side wall of the rectangular groove, thereby achieving the disengagement of the L-shaped cutter head from the side hole.

2. The slider-type side-cutting and piercing forming device as described in claim 1, characterized in that, The lower mold assembly also includes a lower mold fixing block, a lower mold stripping block, and a stripping spring.

3. The slider-type side-cutting and puncturing forming device as described in claim 1, characterized in that, The L-shaped cutter head is provided with a C-shaped groove.

4. The slider-type side-cutting and piercing forming device as described in claim 3, characterized in that, The blade head is located on the lower side of the C-shaped groove.

5. The slider-type side-cutting and puncturing forming device as described in any one of claims 1-4, characterized in that, The L-shaped cutter head is made of tungsten steel.

6. The slider-type side-cutting and puncturing forming device as described in claim 5, characterized in that, The cutting edge is a rectangular groove, and the bottom of the second punch extends into the rectangular groove and abuts against the bottom of the product to be formed.

7. The slider-type side-cutting and puncturing forming device as described in claim 6, characterized in that, The L-shaped cutter head is aligned with the side wall of the product to be formed.

8. The slider-type side-cutting and puncturing forming device as described in claim 7, characterized in that, The stripper plate is equipped with a vertical pressure block. When the L-shaped cutter head is aligned with the side wall of the product to be formed, the vertical pressure block presses down on the edge of the product to be formed.

9. The slider-type side-cutting and puncturing forming device as described in claim 6, characterized in that, The blade head is wedge-shaped.

10. The slider-type side-cutting and puncturing forming device as described in claim 6, characterized in that, The slider is equipped with a limiting step.

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