Stamping die capable of automatically riveting

Abstract

The utility model relates to a stamping die capable of automatically riveting. The stamping die comprises an upper die and a lower die, the upper die is provided with a plurality of punches capable of moving towards the lower die, the punches comprise molding punches and riveting punches which are arranged in sequence, and the molding punches can be used for carrying out punch forming on a material belt to enable the material belt to form convex nails; the lower die is provided with a discharging channel, the parts forming the protruding nails are sequentially stacked in the discharging channel, and the riveting punch can stretch into the discharging channel to rivet the sequentially stacked parts. The material belt is sequentially punched through the molding punch and the riveting punch, so that the formed material belt is directly riveted and formed in the discharging channel, and the efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of hardware forming dies, and in particular to a stamping die capable of automatic riveting. Background Art

[0002] Magnets are made of laminated or block-shaped components made of magnetic materials. They are supplied in cylinders, rectangular strips and plates. They can be machined into the required shape, then stacked in sequence and connected in series with fasteners such as screws or bolts. They are mainly used in the electrical field.

[0003] In the traditional production method, a stamping die is required to stamp the material strip. According to Chinese patent CN218487031U, a continuous stamping die is disclosed. The die includes an upper die base, a lower die base, an upper mounting plate, a lower mounting plate, a stamping head assembly and a stamping die assembly. The upper die base and the lower die base move relative to each other, causing the stamping head assembly and the stamping die assembly to move relative to each other, and the material strip is stamped in turn to form a single piece of magnetic conductive plate. After these magnetic conductive plates are cut, they need to be further stacked and fixed, which is inefficient.

[0004] Therefore, it is necessary to develop a stamping die that can automatically rivet to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency punching die capable of automatic riveting.

[0006] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a stamping die capable of automatic riveting, comprising an upper die and a lower die;

[0007] The upper die is equipped with a plurality of punches that can move toward the lower die. The punches include a shaping punch and a riveting punch that are sequentially arranged. The shaping punch can stamp and shape the material strip to form a convex nail on the material strip.

[0008] The lower die is provided with a blanking channel, and the parts forming the convex nails are sequentially stacked in the blanking channel. The riveting punch can be extended into the blanking channel to rivet the sequentially stacked parts.

[0009] Furthermore, the punch includes a gap-avoiding punch, which punches the position where the material strip is to be nailed to form a through hole, and the molding punch and the riveting punch can pass through the through hole.

[0010] Furthermore, the upper die includes a driving portion, and the driving portion is connected to an adjusting rod, and the adjusting rod drives the air-avoiding punch to punch holes in the material strip.

[0011] Furthermore, a movable block is provided above the air-avoiding punch, and the adjusting rod can extend above the movable block to squeeze the movable block, so that the movable block synchronously squeezes the air-avoiding punch.

[0012] Furthermore, the upper die includes a positioning punch, which punches a hole in the material strip between the upper die and the lower die, forming a positioning hole on the material strip to facilitate subsequent positioning of the material strip.

[0013] Furthermore, the lower die includes a first lower die cutting edge, the first lower die cutting edge corresponds to the positioning punch, and the positioning punch can extend into the first lower die cutting edge.

[0014] Furthermore, the lower die includes a second lower die cutting edge, the second lower die cutting edge corresponds to the air-avoiding punch, and the air-avoiding punch can extend into the second lower die cutting edge.

[0015] Furthermore, the lower die includes a third lower die cutting edge, and the third lower die cutting edge corresponds to the molding punch.

[0016] Furthermore, a supporting member is installed inside the third lower die blade, and the supporting member applies a supporting force to the part when the molding punch is punching.

[0017] Furthermore, the lower die includes a fourth lower die cutting edge, the fourth lower die cutting edge corresponds to the riveting punch, the blanking channel is arranged in the fourth lower die cutting edge, the diameter of the part is larger than the diameter of the blanking channel, and the part is stuck in the blanking channel.

[0018] Compared with the existing technology, the beneficial effect of the present invention is that: the present invention is a stamping die that can be automatically riveted, which has the characteristics of high efficiency. The material strip is punched in sequence by a positioning punch, a gap-avoiding punch, a shaping punch and a riveting punch, so that the material strip is directly riveted into shape in the discharge channel after being formed, which has high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 This is a schematic diagram of the planar structure of a stamping die capable of automatic riveting according to the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the upper die plane structure of the stamping die capable of automatic riveting;

[0022] Figure 3 for Figure 1The diagram shows the planar structure of the lower die of a stamping die capable of automatic riveting.

[0023] In the figure: 1. Upper die; 2. Lower die; 11. Upper die base; 12. Upper die plate; 13. Stripper plate; 14. Upper splint; 15. Contour sleeve; 16. Punch; 131. Stripper insert; 132. Channel; 141. Splint insert; 161. Positioning punch; 162. Air-avoiding punch; 163. Shaping punch; 164. Riveting punch; 17. Movable block; 18. Driving unit; 181. Adjusting rod; 21. Lower die base; 22. Lower die plate; 221. First lower die blade; 222. Second lower die blade; 223. Third lower die blade; 224. Fourth lower die blade; 23. Supporting piece; 24. Unloading channel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 3 The utility model is a stamping die capable of automatic riveting, which comprises an upper die 1 and a lower die 2.

[0026] Please see Figures 1 to 2 The upper mold 1 includes an upper mold base 11, an upper mold plate 12 installed on the upper mold base 11, a stripper plate 13 and an upper clamping plate 14 arranged under the upper mold plate 12, and a contour sleeve 15 for fixing the stripper plate 13. The upper mold base 11 is in a horizontal state and is used to support the upper mold plate 12 and the upper clamping plate 14. The upper mold plate 12 is fixed to the lower surface of the upper mold base 11 and is used to fix the stripper plate 13 and the upper clamping plate 14.

[0027] A plurality of splint inserts 141 are installed in the upper splint 14, and the plurality of splint inserts 141 pass through the upper and lower surfaces of the upper splint 14, and a punch 16 is installed inside each of them. One end of the punch 16 is fixed in the splint insert 141, and the other end extends vertically downward and passes through the stripper plate 13.

[0028] A plurality of stripping inserts 131 are installed in the stripping plate 13. The plurality of stripping inserts 131 pass through the upper and lower surfaces of the stripping plate 13 and are placed in the stripping plate 13. Channels 132 are formed inside the plurality of stripping inserts 131. The channels 132 pass through the upper and lower surfaces of the stripping inserts 131. Specifically, the number of stripping inserts 131 is the same as the number of punches 16 and corresponds to each other. The punch 16 passes through the channel 132 and extends out of the stripping plate 13. The stripping inserts 131 are used to limit the moving direction of the punch 16 so that the punch 16 moves vertically downward.

[0029] Please see Figure 2 The punch 16 includes a positioning punch 161 , a gap-avoiding punch 162 , a shaping punch 163 and a riveting punch 164 .

[0030] The positioning punch 161 is fixed in the upper clamping plate 14 and can move vertically toward the lower die 2 to punch the material strip between the upper die 1 and the lower die 2, forming a positioning hole on the material strip to facilitate subsequent positioning of the material strip.

[0031] The air-avoiding punch 162 is fixed in the upper clamping plate 14 and can move vertically toward the lower die 2 to punch holes in the material strip between the upper die 1 and the lower die 2. A through hole is formed on the material strip. The diameter of the through hole is larger than the diameter of the molding punch 163 and the riveting punch 164, so that the molding punch 163 and the riveting punch 164 can pass through the through hole. Specifically, according to needs, the air-avoiding punch 162 punches holes in the material strip at regular intervals.

[0032] The molding punch 163 is fixed in the upper clamping plate 14 and can move vertically toward the lower mold 2 to punch the material strip between the upper mold 1 and the lower mold 2 to form a part. The part has a punched groove, and the lower surface of the part bulges outward to form a convex nail.

[0033] The riveting punch 164 is fixed in the upper clamping plate 14 and can move vertically toward the lower die 2 to punch the stacked parts so that the stacked parts are riveted together.

[0034] A movable block 17 is installed in the upper template 12, and the movable block 17 is located above the air-avoiding punch 162. The upper mold 1 also includes a driving part 18, which is a kind of cylinder, connected to an adjusting rod 181. The adjusting rod 181 extends into the upper mold base 11 and is located above the movable block 17. The end of the adjusting rod 181 forms an inclined surface. When the air-avoiding punch 162 is needed to punch the material strip, the driving part 18 drives the adjusting rod 181 to move above the movable block 17 to squeeze the movable block 17. The movable block 17 synchronously squeezes the air-avoiding punch 162, and the end of the air-avoiding punch 162 extends out of the stripping plate 13 to punch the material strip. When the air-avoiding punch 162 is no longer needed to punch the material strip, the adjusting rod 181 withdraws from the top of the movable block 17, the movable block 17 loses its extrusion, and the end of the air-avoiding punch 162 retreats to the stripping plate 13.

[0035] The lower die 2 includes a lower die base 21 and a lower die plate 22 mounted on the lower die base 21 . The lower die base 21 is in a horizontal state and is used to support the lower die plate 22 so that the lower die plate 22 is in a horizontal state.

[0036] Please see Figure 3 The lower mold plate 22 includes a first lower mold cutting edge 221 , a second lower mold cutting edge 222 , a third lower mold cutting edge 223 and a fourth lower mold cutting edge 224 .

[0037] The first lower die cutting edge 221 corresponds to the positioning punch 161 , and the positioning punch 161 can extend into the first lower die cutting edge 221 .

[0038] The second lower die cutting edge 222 corresponds to the air-avoiding punch 162 , and the air-avoiding punch 162 can extend into the second lower die cutting edge 222 .

[0039] The third lower die blade 223 corresponds to the molding punch 163 , and a supporting member 23 is installed inside the third lower die blade 223 . When the molding punch 163 is punching, the supporting member 23 applies a supporting force to the part, and the supporting force is opposite to the punching force of the molding punch 163 .

[0040] The fourth lower die blade 224 corresponds to the riveting punch 164 . The fourth lower die blade 224 has a blanking channel 24 . The diameter of the part is larger than the diameter of the blanking channel 24 , specifically 0.01 to 0.02 mm. The part is stuck in the blanking channel 24 .

[0041] When the stamping die of the utility model can be automatically riveted, the material strip passes through and moves continuously between the upper die 1 and the lower die 2, and the positioning punch 161 extends into the first lower die blade 221 to punch the material strip to form a positioning hole. The shaping punch 163 then punches the formed part to form a convex nail, and finally enters the blanking channel 24 and is clamped by the blanking channel 24. After the next part has passed the above process, it enters the blanking channel 24 and is clamped by the blanking channel 24. Multiple parts are stacked in sequence, and the riveting punch 164 enters the blanking channel 24 and applies pressure to the stacked multiple parts, so that the convex nail of the upper part enters the lower part. According to the demand, every certain number of parts, the driving part 18 drives the adjusting rod 181 to move above the movable block 17, squeezing the movable block 17, and the movable block 17 synchronously squeezes the avoidance punch 162. The end of the avoidance punch 162 extends out of the stripping plate 13 to punch the position where the part is not convex. The position of the part is not convex, and does not participate in the riveting of the parts in the blanking channel 24, which is used to separate the stacked parts.

[0042] The utility model is a stamping die that can automatically rivet and has the characteristics of high efficiency. The material strip is stamped in sequence by a positioning punch, a gap-avoiding punch, a shaping punch and a riveting punch, so that the material strip is directly riveted and formed in a feeding channel after being formed, and the efficiency is relatively high.

[0043] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stamping die capable of automatic riveting, characterized in that: It includes an upper mold (1) and a lower mold (2); The upper die (1) is provided with a plurality of punches (16) movable toward the lower die (2), the punches (16) comprising a molding punch (163) and a riveting punch (164) arranged in sequence, the molding punch (163) being capable of stamping and forming the material strip to form convex nails on the material strip; The lower die (2) is provided with a blanking channel (24), and the parts forming the protruding nails are sequentially stacked in the blanking channel (24). The riveting punch (164) can extend into the blanking channel (24) to rivet the sequentially stacked parts.

2. The automatic riveting stamping die according to claim 1, characterized in that: The punch (16) includes a gap-avoiding punch (162), which punches the position where the material strip is to be embossed to form a through hole, and the molding punch (163) and the riveting punch (164) can pass through the through hole.

3. The automatic riveting stamping die according to claim 2, characterized in that: The upper die (1) comprises a driving portion (18), the driving portion (18) being connected to an adjusting rod (181), and the adjusting rod (181) drives the air-avoiding punch (162) to punch holes in the material strip.

4. The automatic riveting stamping die according to claim 3, characterized in that: A movable block (17) is provided above the air-avoiding punch (162), and the adjusting rod (181) can extend above the movable block (17) to squeeze the movable block (17), so that the movable block (17) synchronously squeezes the air-avoiding punch (162).

5. The automatic riveting stamping die according to claim 1, characterized in that: The upper die (1) includes a positioning punch (161), and the positioning punch (161) punches a material strip located between the upper die (1) and the lower die (2), forming a positioning hole on the material strip to facilitate subsequent positioning of the material strip.

6. The automatic riveting stamping die according to claim 5, characterized in that: The lower die (2) comprises a first lower die cutting edge (221), the first lower die cutting edge (221) corresponds to the positioning punch (161), and the positioning punch (161) can extend into the first lower die cutting edge (221).

7. The automatic riveting stamping die according to claim 2, characterized in that: The lower die (2) comprises a second lower die cutting edge (222), the second lower die cutting edge (222) corresponds to the air-avoiding punch (162), and the air-avoiding punch (162) can extend into the second lower die cutting edge (222).

8. The automatic riveting stamping die according to claim 1, characterized in that: The lower die (2) comprises a third lower die cutting edge (223), and the third lower die cutting edge (223) corresponds to the molding punch (163).

9. The automatic riveting stamping die according to claim 8, characterized in that: A supporting member (23) is installed inside the third lower die blade (223), and the supporting member (23) applies a supporting force to the part when the molding punch (163) is punching.

10. The automatic riveting stamping die according to claim 1, characterized in that: The lower die (2) includes a fourth lower die blade (224), the fourth lower die blade (224) corresponds to the riveting punch (164), the blanking channel (24) is arranged in the fourth lower die blade (224), the diameter of the part is larger than the diameter of the blanking channel (24), and the part is stuck in the blanking channel (24).

Images