Combined stamping die

Abstract

The utility model discloses a combined stamping die, and relates to the technical field of stamping dies. The die comprises a bottom plate, a supporting table is arranged on the bottom plate, a female die is arranged on the supporting table, a groove is formed in the female die, a top plate is arranged in the groove, a plurality of vent holes communicated with the groove are formed in the bottom face of the female die, air inlet holes communicated with the vent holes are formed in the supporting table, and four electric push rods used for driving the top plate to slide are arranged on the bottom plate. A hydraulic mechanism is arranged on the bottom plate, and a male die is arranged at the output end of the hydraulic mechanism. According to the utility model, the top plate is pushed to slide upwards by the electric push rod, and after the square plate body at the lower part of the top plate completely slides out of the square groove at the lower part of the groove, air enters the groove through the air inlet hole and the vent hole to balance the pressure in the groove, so that the resistance of the top plate for pushing a model to demould is conveniently reduced; and the top plate is inclined while sliding on the dovetail block through the electric push rod, and the model on the top plate automatically slides away, so that the model can be quickly demoulded.

Description

Technical Field

[0001] The utility model belongs to the field of stamping dies, and in particular relates to a combined stamping die. Background Art

[0002] A stamping die is a special process equipment used to process metal or non-metal into parts or semi-finished products in cold stamping. It is called a cold stamping die. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform the material, thereby obtaining the desired parts. The stamping die is an indispensable process equipment for stamping production. During the processing of parts by the existing combined stamping die, the parts are subjected to greater pressure. After the parts are formed, they are located inside the die groove. The adhesion between the parts and the die groove is greater, which can easily make it difficult to remove the processed parts.

[0003] A Chinese patent with application number CN202020597317.9 discloses a combined stamping die, including a base plate, support columns are fixedly connected to both sides of the top of the base plate, the top of the support columns is fixedly connected to a top plate, the top of the base plate is fixedly connected to a workbench, the top of the workbench is fixedly connected to a lower die table, the bottom of the inner cavity of the workbench is fixedly connected to a motor, and the bottom of both sides of the inner cavity of the workbench are fixedly connected to partitions. The utility model has the advantage of easy discharging through the coordinated use of a workbench, a lower mold table, a motor, a partition, a threaded rod, a threaded sleeve, a movable plate, a first slider, a first slide groove, a connecting rod and a support plate, and solves the problem that in the process of processing parts with the existing combined stamping mold, the parts are subjected to large pressure. After the parts are formed, the parts are located inside the mold groove, and the adhesion between the parts and the mold groove is large, which easily makes the processed parts difficult to remove. In this application, after the support plate slides out of the lower mold table, the stamping model will stay on the support plate. The stamping model on the support plate still needs manual or other mechanisms to remove the stamping model from the support plate, and the practicality of the equipment is low.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a combined stamping die.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A combined stamping die comprises a base plate, a support platform is arranged on the base plate, a die is arranged on the support platform, a groove is arranged in the die, a top plate is arranged in the groove, a plurality of vents connected to the grooves are arranged on the bottom surface of the die, an air inlet connected to the vents is arranged on the support platform, four electric push rods for driving the top plate to slide are arranged on the base plate, two dovetail grooves are arranged at the lower part of the top plate, dovetail blocks are slidably fitted in the dovetail grooves, the two electric push rods are respectively hinged to the two dovetail blocks, a hydraulic mechanism is arranged on the base plate, and a punch is arranged at the output end of the hydraulic mechanism.

[0008] Optionally, the groove includes a notch provided on the lower inner wall of the die and a U-shaped groove provided on the inner wall below the notch, and the vent hole is connected to the U-shaped groove.

[0009] Optionally, the top plate includes a plate body and a U-shaped plate body arranged on the bottom surface of the plate body, there is a spacing between the outer side of the U-shaped plate body and the inner wall of the side of the die, and the output ends of two electric push rods pass through the support platform, the die and are hinged to the U-shaped plate body, and the output ends of the other two electric push rods pass through the support platform, the die and are hinged to the dovetail block, and the four electric push rods are respectively connected to the four corners of the U-shaped plate body, the plate body is located in the recess, and the U-shaped plate body is located in the U-shaped groove.

[0010] Optionally, there is a distance between the support platform and the base plate, and the base plate includes four raising legs arranged on its bottom surface, and the raising legs are fixedly connected to the base plate.

[0011] Optionally, the hydraulic mechanism includes a hydraulic support arranged on the bottom plate, a hydraulic press arranged on the hydraulic support, and the punch is fixed at the output end of the hydraulic press.

[0012] Optionally, four guide rods are provided on the upper side of the punch, and guide holes corresponding to the guide rods are provided on the hydraulic support, and one end of the guide rod is slidably fitted in the guide hole, and the four guide rods are respectively located at the four corners of the upper side of the punch.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] The top plate is pushed upward by the electric push rod. When negative pressure gradually forms between the top plate and the inner wall of the groove in the die, and when the U-shaped plate body at the bottom of the top plate completely slides out of the U-shaped groove at the bottom of the groove, air enters the groove through the air inlet and the air vent to balance the pressure in the groove, so as to reduce the resistance of the top plate to push the model to demould. When the top plate slides out of the die, the two electric push rods hinged to the dovetail block stop closing, and the two electric push rods hinged to the top plate continue to push the top plate, so that the top plate tilts while sliding on the dovetail block, and the model on the top plate automatically slides away, so as to facilitate rapid demoulding of the model. The plate body is fully supported by the U-shaped plate body and the inner wall at the bottom of the groove, so as to avoid lack of support force at the holes in the lower part of the plate body, which affects the stability of the plate body during punching.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0018] Figure 2 A cross-sectional view of an embodiment of the utility model;

[0019] Figure 3 A cross-sectional view of an electric push rod according to an embodiment of the utility model;

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] Bottom plate 1, support table 2, die 3, groove 4, top plate 5, vent 6, air inlet 7, electric push rod 8, punch 9, leg raising 10, hydraulic support 11, hydraulic press 12, guide rod 13, guide hole 14, notch 401, U-shaped groove 402, plate body 501, U-shaped plate body 502, dovetail groove 51, dovetail block 52.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] The utility model will now be further described in detail with reference to the accompanying drawings.

[0024] See also Figure 1-3 As shown, in this embodiment, a combined stamping die is provided, including a base plate 1, a support platform 2 is installed on the base plate 1, a die 3 is provided on the support platform 2, a groove 4 is provided in the die 3, a top plate 5 is provided in the groove 4, a plurality of air vents 6 connected to the grooves 4 are provided on the bottom surface of the die 3, an air inlet 7 connected to the air vents 6 is provided on the support platform 2, four electric push rods 8 for driving the top plate 5 to slide are provided on the base plate 1, two dovetail grooves 51 are provided at one end of the lower part of the top plate 5, a dovetail block 52 is slidably fitted in the dovetail grooves 51, wherein the two electric push rods 8 are hinged to the two dovetail blocks 52 respectively, a hydraulic mechanism is provided on the base plate 1, and a punch 9 is provided at the output end of the hydraulic mechanism.

[0025] The electric push rod 8 pushes the top plate 5 to slide upward. When negative pressure gradually occurs between the top plate 5 and the inner wall of the groove 4 in the die 3, and when the U-shaped plate body 502 at the lower part of the top plate 5 completely slides out of the U-shaped groove 402 at the lower part of the groove 4, air enters the groove 4 through the air inlet 7 and the air vent 6 to balance the pressure in the groove 4, thereby reducing the resistance of the top plate 5 to push the model to be demolded, so as to facilitate rapid demolding of the model.

[0026] The groove 4 of this embodiment includes a notch 401 provided on the lower inner wall of the die 3, and a U-shaped groove 402 provided on the lower inner wall of the notch 401. The vent 6 is connected with the U-shaped groove 402, so that air can enter the groove 4 through the air inlet 7 and the vent 6 to balance the pressure in the groove 4, thereby reducing the resistance of the top plate 5 to push the model to be demolded, and facilitating rapid demolding of the model.

[0027] The top plate 5 of the present embodiment includes a plate body 501 and a U-shaped plate body 502 arranged on the bottom surface of the plate body 501. There is a distance between the outer side of the U-shaped plate body 502 and the inner wall of the side of the die 3, and the output ends of two electric push rods 8 pass through the support platform 2, the die 3 and are hinged to the U-shaped plate body 502. The output ends of the other two electric push rods 8 pass through the support platform 2, the die 3 and are hinged to the dovetail block 52. The four electric push rods 8 are respectively connected to the four corners of the U-shaped plate body 502. The plate body 501 is located in the recess 401, and the U-shaped plate body 502 is located in the U-shaped groove 402, so that the plate body 501 is fully supported by the U-shaped plate body 502 and the lower inner wall of the groove 4, so as to avoid the lack of supporting force at the holes in the lower part of the plate body 501, which affects the stability of the plate body 501 during punching.

[0028] There is a gap between the support platform 2 and the base plate 1 of this embodiment. The base plate 1 includes four raising legs 10 arranged on the bottom surface thereof, and the raising legs 10 are fixedly connected to the base plate 1. The hydraulic mechanism includes a hydraulic support 11 arranged on the base plate 1, and a hydraulic press 12 arranged on the hydraulic support 11. The punch 9 is fixed at the output end of the hydraulic press 12, so that the punch 9 is driven by the hydraulic press 12 to complete the punching work. Four guide rods 13 are arranged on the upper side of the punch 9, and a guide hole 14 corresponding to the guide rod 13 is arranged on the hydraulic support 11, and one end of the guide rod 13 is slidably fitted in the guide hole 14. The four guide rods 13 are respectively located at the four corners of the upper side of the punch 9, so as to improve the stability of the punch 9 sliding up and down.

[0029] Working principle: During demoulding, the electric push rod 8 pushes the top plate 5 to slide upwards. When negative pressure gradually forms between the top plate 5 and the inner wall of the groove 4 in the die 3, when the U-shaped plate body 502 at the bottom of the top plate 5 completely slides out of the U-shaped groove 402 at the bottom of the groove 4, air enters the groove 4 through the air inlet 7 and the air vent 6 to balance the negative pressure in the groove 4, thereby reducing the resistance of the top plate 5 to push the model to demould. When the top plate 5 slides out of the die 3, the two electric push rods 8 hinged to the dovetail block 52 stop closing, and the two electric push rods 8 hinged to the top plate 5 continue to push the top plate 5, so that the top plate 5 tilts while sliding on the dovetail block 52, and the model on the top plate 5 automatically slides away, thereby facilitating rapid demoulding of the model.

[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A combined stamping die, characterized in that: include: A bottom plate (1) is provided on the bottom plate (1), a support platform (2) is provided on the support platform (2), a die (3) is provided on the die (3), a groove (4) is provided in the die (3), a top plate (5) is provided in the groove (4), a bottom surface of the die (3) is provided with a plurality of vents (6) connected to the grooves (4), an air inlet (7) connected to the vents (6) is provided on the support platform (2), four electric push rods (8) for driving the top plate (5) to slide are provided on the bottom plate (1), two dovetail grooves (51) are provided at the lower part of the top plate (5), a dovetail block (52) is slidably matched in the dovetail grooves (51), wherein the two electric push rods (8) are respectively hinged to the two dovetail blocks (52), a hydraulic mechanism is provided on the bottom plate (1), and a convex mold (9) is provided at the output end of the hydraulic mechanism.

2. A combined stamping die according to claim 1, characterized in that: The groove (4) comprises a notch (401) provided on the lower inner wall of the female mold (3), and a square-shaped groove (402) provided on the lower inner wall of the notch (401); the vent hole (6) is connected to the square-shaped groove (402).

3. A combined stamping die according to claim 2, characterized in that: The top plate (5) comprises a plate body (501) and a square plate body (502) arranged on the bottom surface of the plate body (501). There is a distance between the outer side of the square plate body (502) and the inner wall of the side of the concave mold (3), and the output end of the electric push rod (8) is fixedly connected to the square plate body (502).

4. A combined stamping die according to claim 1, characterized in that: There is a distance between the support platform (2) and the bottom plate (1), and the bottom plate (1) includes four raising legs (10) arranged on the bottom surface thereof.

5. The combined stamping die according to claim 1, characterized in that: The hydraulic mechanism comprises a hydraulic support (11) arranged on a bottom plate (1), a hydraulic press (12) arranged on the hydraulic support (11), and a punch (9) is fixed on the output end of the hydraulic press (12).

6. A combined stamping die according to claim 5, characterized in that: Four guide rods (13) are arranged on the upper side of the punch (9), and guide holes (14) corresponding to the guide rods (13) are arranged on the hydraulic support (11).

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