Die structure for controlling opening change of stamping die

Abstract

The utility model discloses a die structure for controlling the opening change of a stamping die, which relates to the technical field of stamping dies and comprises a female die frame, a stripping core and a male die frame, four limiting blocks are arranged on the female die frame in a rectangular array, and female die inserts are arranged on the periphery of the top of a groove of the female die frame. The stripping core is connected into the groove and the female die insert in a sliding mode, the bottom of the stripping core is connected with the bottom wall of the groove through a plurality of nitrogen springs, a plurality of positioning pins are arranged on the stripping core, a through receding groove is formed in the side face of the stripping core, a through screw locked with the female die frame through a locking nut is inserted into the receding groove, and the male die frame is arranged above the female die frame. The opposite-penetrating screw rod is longitudinally arranged in the middle of the die and connected with the two deformation faces of the die, in the die forming process, the outward deformation amount of the two sides is mutually counteracted through pulling of the opposite-penetrating screw rod, and therefore die deformation is controlled within the maximum range, the flanging gap of a product is guaranteed, and the product quality is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a die structure for controlling the change of the opening of the stamping die. Background Art

[0002] The flanging or forming die of the strip stamping parts is generally designed to be very long due to the product shape, but the width is limited. In order to avoid the travel of the stripping core, such as Figure 1 As shown, the die frame of the traditional mold will be hollowed out as a whole, and the strength of the hollowed-out die frame in the front-to-back direction will be weak. During the forming process, it will be deformed due to lateral force, resulting in the product flanging not being in place and unstable forming. Utility Model Content

[0003] The utility model aims to provide a die structure for controlling the change of the opening of a stamping die, so as to overcome the above-mentioned defects in the prior art.

[0004] A mold structure for controlling the opening change of a stamping mold comprises a die frame, a stripping core and a punch frame, wherein the die frame has four limit blocks in a rectangular array, the die frame is provided with die inserts around the top of the groove, the stripping core is slidably connected in the groove and the die insert, and its bottom is connected to the bottom wall of the groove through a plurality of nitrogen springs, a plurality of positioning pins are provided on the stripping core, a through avoidance groove is provided on the side of the stripping core, a through screw locked with the die frame through a locking nut is inserted in the avoidance groove, and the punch frame is arranged above the die frame.

[0005] Preferably, a plurality of dead blocks are provided at the bottom of the stripping core, and a plurality of guide slide plates are provided at the side of the stripping core.

[0006] Preferably, guide grooves are symmetrically provided on both sides of the female mold frame, two guide slide plates are provided in the guide grooves, and guide blocks cooperating with the guide grooves are provided on both sides of the male mold frame.

[0007] Preferably, a plurality of adjustment keys are provided between the die insert and the die frame.

[0008] Preferably, cast-in lifting ears are symmetrically provided on both sides of the female mold frame and the male mold frame.

[0009] Preferably, the four corners of the die frame are respectively connected with storage and transportation blocks via hinges.

[0010] The utility model has the following advantages:

[0011] The present invention longitudinally arranges a through screw in the middle position of the mold to connect the two deformation surfaces of the mold. During the mold forming process, the outward deformation on both sides is offset by the pulling of the through screw, thereby controlling the deformation of the mold within the maximum range, ensuring the flanging clearance of the product, and further controlling the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the structure of a traditional mold.

[0013] Figure 2 It is a schematic diagram of the overall structure of the mold of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the convex mold frame of the utility model.

[0015] Figure 4 It is a structural schematic diagram of the concave mold frame and its accessories of the utility model.

[0016] Figure 5 It is a top view of the concave mold frame of the utility model.

[0017] Figure 6 It is a structural schematic diagram of the stripping core and the through-screw rod of the utility model.

[0018] Among them: 1. Die frame; 11. Groove; 12. Guide groove; 13. Guide slide plate 2; 14. Storage and transportation block; 2. Limit block; 3. Die insert; 31. Adjustment key; 4. Stripping core; 41. Positioning pin; 42. Avoidance groove; 43. Pier block; 44. Guide slide plate 1; 5. Nitrogen spring; 6. Through screw; 61. Locking nut; 7. Punch frame; 71. Guide block; 72. Cast-in lifting ear. DETAILED DESCRIPTION

[0019] The specific implementation methods of the utility model are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model.

[0020] like Figure 1-6 As shown, the utility model provides a die structure for controlling the opening change of a stamping die, comprising a die frame 1, a stripping core 4 and a punch frame 7, wherein the die frame 1 has four limit blocks 2 in a rectangular array, the die frame 1 is provided with a die insert 3 around the top of a groove 11, and a plurality of adjustment keys 31 are provided between the die insert 3 and the die frame 1;

[0021] The stripping core 4 is slidably connected in the groove 11 and the die insert 3, and its bottom is connected to the bottom wall of the groove 11 through a plurality of nitrogen springs 5. A plurality of positioning pins 41 are provided on the stripping core 4, and a penetrating avoidance groove 42 is provided on the side of the stripping core 4. A through screw 6 locked with the die frame 1 through a locking nut 61 is inserted in the avoidance groove 42. The two deformation surfaces of the mold are connected by a longitudinal through screw 6, thereby solving the problem of inadequate product forming due to mold deformation. The punch frame 7 is arranged above the die frame 1.

[0022] It should be noted that a plurality of dead blocks 43 are provided at the bottom of the stripping core 4 , and a plurality of guide slides 44 are provided at the side of the stripping core 4 .

[0023] In addition, guide grooves 12 are symmetrically provided on both sides of the female mold frame 1 , guide slide plates 13 are provided in the guide grooves 12 , and guide blocks 71 cooperating with the guide grooves 12 are provided on both sides of the male mold frame 7 .

[0024] In addition, cast-in lifting ears 72 are symmetrically provided on both sides of the female mold frame 1 and the male mold frame 7 .

[0025] It is worth noting that the four corners of the die frame 1 are respectively connected with storage blocks 14 via hinges.

[0026] Generally, in order to increase the strength of the mold frame and control the deformation, the flange surface on the side of the mold will be made larger and thicker, and the weight of the mold will increase, but the deformation cannot be completely eliminated. This application can effectively control the deformation and is relatively low in cost.

[0027] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A die structure for controlling the opening change of a stamping die, characterized in that: The invention comprises a die frame (1), a stripping core (4) and a punch frame (7); the die frame (1) has four limit blocks (2) in a rectangular array; the die frame (1) is provided with die inserts (3) around the top of a groove (11); the stripping core (4) is slidably connected to the groove (11) and the die inserts (3); and its bottom is connected to the bottom wall of the groove (11) via a plurality of nitrogen springs (5); a plurality of positioning pins (41) are provided on the stripping core (4); a through avoidance groove (42) is provided on the side of the stripping core (4); a through screw (6) which is locked with the die frame (1) via a locking nut (61); and the punch frame (7) is arranged above the die frame (1).

2. A die structure for controlling the change of the stamping die opening according to claim 1, characterized in that: The bottom of the stripping core (4) is provided with a plurality of blocking blocks (43), and the side of the stripping core (4) is provided with a plurality of guide slide plates (44).

3. A die structure for controlling the change of the stamping die opening according to claim 1, characterized in that: The two sides of the female mold frame (1) are symmetrically provided with guide grooves (12), the guide grooves (12) are provided with two guide slide plates (13), and the two sides of the male mold frame (7) are provided with guide blocks (71) that cooperate with the guide grooves (12).

4. A die structure for controlling the change of the stamping die opening according to claim 1, characterized in that: A plurality of adjustment keys (31) are provided between the die insert (3) and the die frame (1).

5. A die structure for controlling the change of the stamping die opening according to claim 1, characterized in that: Cast-in lifting ears (72) are symmetrically provided on both sides of the female mold frame (1) and the male mold frame (7).

6. A die structure for controlling the change of the stamping die opening according to claim 1, characterized in that: The four corners of the die frame (1) are respectively connected to storage and transportation blocks (14) via hinges.

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