Buckling and shaping die with core pulling function

Abstract

The utility model relates to the technical field of buckling dies, in particular to a buckling shaping die with a core-pulling function, which is characterized in that a lower die holder is arranged below an upper die holder, a first upper die slotting tool is arranged at the center below the upper die holder, a second upper die slotting tool and a buckling block are respectively arranged on the left side and the right side of the first upper die slotting tool, a guide groove is arranged above the lower die holder, and the lower die holder is arranged in the guide groove. Two pairs of mold core guide rail blocks are arranged on the left side and the right side of the guide groove, a pair of nitrogen cylinders is arranged in the guide groove, connecting pieces are fixed to the upper portions of one ends of the nitrogen cylinders respectively, first lower mold core slotting tools are connected to the upper portions of the connecting pieces and are in sliding connection with the mold core guide rail blocks, and one ends of the first lower mold core slotting tools penetrate through buckling guide blocks. Compared with the prior art, the whole structure is simple, die damage caused by the fact that parts cannot be taken down can be completely avoided, meanwhile, the precision of the die can effectively guarantee buckling precision, the rejection rate of the parts is effectively controlled, the die is not provided with an external attaching mechanism, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of buckle-fitting moulds, in particular to a buckle-fitting shaping mould with a core-pulling function. Background Art

[0002] In the existing new energy anti-collision beam front end mounting plate, a conventional snap-fit ​​mold is used in the hard mold manufacturing stage. After stamping, the product is tightly attached to the snap-fit ​​mold, which makes it extremely difficult to remove the stamped product. In order to avoid the difficulty in removing the parts, the method of enlarging the tolerance between the snap-fit ​​mold core and the parts is often used, which leads to problems such as part size deviation, snap-fit ​​teeth misalignment, and large springback after snapping. After the parts are snapped, they are difficult to remove from the mold cavity. Forcible removal may cause damage to the mold core. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, the utility model provides a snap-fitting and shaping mold with a core-pulling function. The lower mold core can be simply pushed through the part by the inserting knife structure and the side can press the part to support the part to complete the snapping and shaping. The mold core can be pulled back to its original position by the retraction mechanism, and the part can be taken out.

[0004] In order to achieve the above purpose, a snap-fit ​​shaping mold with a core-pulling function is designed, comprising an upper mold base and a lower mold base, a lower mold base is provided below the upper mold base, an upper mold blade 1 is provided at the center below the upper mold base, upper mold blade 2 and a snap-fit ​​block are respectively provided on the left and right sides of the upper mold blade 1, a guide groove is provided above the lower mold base, two pairs of core guide blocks are provided on both sides of the guide groove, a pair of nitrogen cylinders are provided in the guide groove, a connecting piece is fixed above one end of each nitrogen cylinder, a lower mold core blade 1 is connected above the connecting piece, the lower mold core blade 1 is slidably connected to the core guide block, one end of the lower mold core blade 1 passes through the snap-fit ​​guide block, the lower mold core blade 1 is provided on the left and right sides of the lower mold core blade 1, and the outer sides of the lower mold core blade 2 are respectively provided with lower mold limiting grooves.

[0005] The upper die base and the lower die base are fully symmetrical structures.

[0006] Guide columns are arranged on the outer sides of the upper die inserting knife 2 and the buckling block, and guide grooves matched with the guide columns are arranged on the lower die seat.

[0007] Parts are respectively fixed on both ends of the guide groove.

[0008] The gap between the part and the buckling guide block forms a buckling groove that matches the buckling block.

[0009] Mutually matched inserting knife slopes are provided between the upper die inserting knife 1 and the lower die core inserting knife 1, and between the upper die inserting knife 2 and the lower die core inserting knife 2.

[0010] Compared with the prior art, the utility model has a simple overall structure and can completely avoid damage to the mold and loss of production time caused by the inability to remove parts. At the same time, the precision of the mold itself can effectively ensure accurate fastening and shaping, effectively controlling the scrap rate of parts. The mold has no external attachments, which greatly reduces the cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the lower mold of the present utility model.

[0012] Figure 2 This is a schematic diagram of the new upper mold used in this paper.

[0013] Figure 3 It is a partial perspective view of the utility model.

[0014] Figure 4 It is an illustration of the fastened parts.

[0015] See also Figures 1 to 4 , 1 is the upper die insert one, 2 is the upper die insert two, 3 is the snap-fit ​​block, 4 is the guide column, 5 is the lower die core insert one, 6 is the lower die core insert two, 7 is the lower die limit groove, 8 is the snap-fit ​​guide block, 9 is the part, 10 is the core guide block, 11 is the connecting part, 12 is the nitrogen cylinder, 13 is the guide groove, 14 is the insert slope, 15 is the snap-fit ​​groove, 16 is the upper die base, and 17 is the lower die base. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figures 1 to 4 As shown, a lower die base 17 is provided below the upper die base 16, an upper die insert 1 is provided at the center below the upper die base 16, an upper die insert 2 and a snap-fit ​​block 3 are provided on the left and right sides of the upper die insert 1, a guide groove 13 is provided above the lower die base 17, two pairs of core guide rail blocks 10 are provided on both sides of the guide groove 13, a pair of nitrogen cylinders 12 are provided in the guide groove 13, a connector 11 is fixed above one end of the nitrogen cylinder 12, a lower die core insert 5 is connected above the connector 11, the lower die core insert 5 is slidably connected to the core guide rail block 10, and the nitrogen cylinder 12 plays the role of a spring. 12 serves as a retraction mechanism. After the fastening is completed, the lower mold core insert 5 rebounds and returns to its original position. One end of the lower mold core insert 5 passes through the fastening guide block 8. The fastening guide block 8 is generally slightly larger than the fastening part 9 and plays a guiding role. The left and right sides of the lower mold core insert 5 are respectively provided with lower mold core inserts 6. The upper mold insert 1 cooperates with the lower mold core insert 5, and the lower mold core insert 26 cooperates with the upper mold insert 2. The outer sides of the lower mold core insert 26 are respectively provided with lower mold limiting grooves 7. The lower mold limiting grooves 7 provide support and buffering when the upper mold insert 2 and the lower mold core insert 2, 6 are squeezed against each other.

[0018] The upper die base 16 and the lower die base 17 are fully symmetrical structures, which can simultaneously fasten two parts 9 at the same time, which is more efficient.

[0019] Guide posts 4 are provided on the outer sides of the upper die inserting blade 2 and the buckling block 3 , and guide grooves 13 cooperating with the guide posts 4 are provided on the lower die base 17 .

[0020] Parts 9 are fixed to both ends of the guide groove 13 respectively. Parts 9 are mounting plates at the front end of the automobile anti-collision beam.

[0021] The gap between the part 9 and the fastening guide block 8 forms a fastening groove 15 that cooperates with the fastening block 3. When the upper mold base 16 is pressed down, the fastening block 3 is inserted into the fastening groove 15 to play a role of fastening and fixing.

[0022] Mutually cooperating insert blade slopes 14 are provided between the upper die insert blade 1 and the lower die core insert blade 5, and between the upper die insert blade 2 2 and the lower die core insert blade 2 6. When the upper die base 16 is pressed down, the contacting insert blade slopes 14 squeeze each other, which can guide the movement direction of the lower die insert blade structure. The upper die insert blade 2 2 squeezes the lower die core insert blade 2 6 inward, pressing and fixing one end of the part 9. The upper die insert blade 1 squeezes the two lower die core insert blades 5, causing the lower die core insert blade 5 to slide outward along the direction of the fastening guide block 8 until the part 9 completes the fastening and shaping.

[0023] The specific operation process of the utility model is as follows: the technician places the processed part 9 into the two ends of the guide groove 13 of the lower die seat 17, starts the press, and the upper die seat 16 moves downward. The inserting blade slope 14 of the upper die inserting blade 1 squeezes the inserting blade slope 14 of the lower die core inserting blade 5. After being squeezed, the lower die core inserting blade 15 is guided by the die core guide block 10 and the buckling guide block 8. The lower die core inserting blade 15 slides toward the part 9, and the nitrogen cylinder 12 is gradually tightened. At the same time, the upper die inserting blade 2 squeezes the lower die core inserting blade 2. 6. The lower die core insert 6 pressurizes and fixes the part 9 from both sides until the snap-fit ​​block 3 is fully inserted into the snap-fit ​​groove 15. At this time, the lower die core insert 5 is snapped with the part 9. After the snap-fit ​​shaping of the part 9 is completed, the upper die base 16 rises upward, the upper die insert 1 and the upper die insert 2 are withdrawn, the nitrogen cylinder 12 retracts, and the upper die insert 1 is pulled back to its original position. The upper die insert 1 is separated from the part 9, and the finished part 9 can be taken out. The whole process has high precision and can effectively control the scrap rate of the parts.

Claims

1. A buckle shaping mold with a core pulling function, comprising an upper mold base and a lower mold base, characterized in that: A lower die base (17) is provided below the upper die base (16), an upper die insert (1) is provided at the center below the upper die base (16), an upper die insert (2) and a snap-fit ​​block (3) are provided on the left and right sides of the upper die insert (1), a guide groove (13) is provided above the lower die base (17), two pairs of core guide rail blocks (10) are provided on both sides of the guide groove (13), a pair of nitrogen cylinders (12) are provided in the guide groove (13), a connecting piece (11) is fixed above one end of each nitrogen cylinder (12), a lower die core insert (5) is connected above the connecting piece (11), the lower die core insert (5) is slidably connected to the core guide rail block (10), one end of the lower die core insert (5) passes through the snap-fit ​​guide block (8), the lower die core insert (5) is provided on the left and right sides of the lower die core insert (5), and the outer sides of the lower die core insert (6) are provided with lower die limiting grooves (7).

2. The buckle shaping mold with core-pulling function according to claim 1, characterized in that: The upper die base (16) and the lower die base (17) are fully symmetrical structures.

3. The buckle shaping mold with core-pulling function according to claim 1, characterized in that: The outer sides of the upper die inserting blade (2) and the buckling block (3) are provided with guide columns (4), and the lower die base (17) is provided with guide grooves (13) that cooperate with the guide columns (4).

4. The buckle shaping mold with core-pulling function according to claim 1, characterized in that: Parts (9) are respectively fixed at both ends of the guide groove (13).

5. The buckle shaping mold with core-pulling function according to claim 4, characterized in that: The gap between the part (9) and the snap-fit ​​guide block (8) forms a snap-fit ​​groove (15) that cooperates with the snap-fit ​​block (3).

6. The buckle shaping mold with core-pulling function according to claim 1, characterized in that: Mutually matched inserting knife slopes (14) are provided between the upper die inserting knife 1 (1) and the lower die core inserting knife 1 (5), and between the upper die inserting knife 2 (2) and the lower die core inserting knife 2 (6).

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