Extrusion stretching forming die

Abstract

The utility model relates to the field of machining, in particular to an extruding and stretching forming die, which comprises a female die and a male die, a forming gap is arranged between the female die and the male die, and the size of a forming surface part of the forming gap, which corresponds to a processing material and has a planeness requirement, is consistent with the thickness of the processing material. And the size of the forming gap corresponding to the forming surface part of the processing material without the requirement of planeness is smaller than the thickness of the processing material. By arranging the forming gap between the female die and the male die, when the part, with the flatness requirement, of a machined material is subjected to extrusion operation, due to the fact that the thickness of the forming gap is consistent with that of the material, the material cannot generate internal stress, and the extruded part can have good flatness; the design that the forming gaps corresponding to other forming face parts without the flatness requirement are smaller than the thickness of the material can ensure that the machined material is pressed to deform in the extrusion process.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to an extrusion stretching molding die. Background Technology

[0002] Extrusion stretch forming dies are tools used to produce various metal or non-metal products. They process raw materials into desired shapes and sizes through extrusion and stretching. These dies play a crucial role in manufacturing, particularly in the automotive, aerospace, and electronics industries. During the extrusion stretch forming process, the extrusion causes internal stress to form within the material, which can lead to uneven flatness on certain forming surfaces. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an extrusion stretching molding die that ensures the requirements of the forming surface.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an extrusion stretching molding die, including a concave die and a convex die, wherein a forming gap is provided between the concave die and the convex die, wherein the size of the forming surface portion of the material with flatness requirements corresponding to the forming gap is consistent with the thickness of the material, and the size of the forming surface portion of the material without flatness requirements corresponding to the forming gap is smaller than the thickness of the material.

[0005] Furthermore, the die is rotatably mounted.

[0006] Furthermore, the punch is rotatably configured.

[0007] Furthermore, the punch is evenly divided along its circumference to form a plurality of stamping blocks, each of which is movable along the height direction of the punch.

[0008] Furthermore, the plurality of stamping blocks move away from the die one by one.

[0009] Furthermore, it also includes a driving structure, which includes a pressure rod. The stamping block is provided with a moving groove extending along the height direction of the punch. The ends of the multiple moving grooves near the die are at the same height position. The lengths of the multiple moving grooves increase sequentially as the corresponding stamping blocks move away from the die. The pressure rod moves in conjunction with the moving groove and drives the stamping block to move along the height direction of the punch.

[0010] Furthermore, the pressure bar is provided with a moving block that cooperates with the moving groove of the stamping block along its circumferential direction.

[0011] Furthermore, a spring is provided on the end of the moving block near the moving groove and away from the die.

[0012] Furthermore, the end of the stamping block is provided with an oil injection hole that communicates with the moving groove.

[0013] Furthermore, the side of the stamping block is provided with a slider, and the side of the adjacent stamping block is provided with a sliding groove, and the slider and the sliding groove move in coordination.

[0014] The beneficial effects of this utility model are as follows: by setting the forming gap between the die and the punch, when the part of the processed material with flatness requirements is extruded, since the forming gap is consistent with the material thickness, the material will not generate internal stress, and the extruded part can have good flatness; while for other forming surfaces that do not need to have flatness requirements, the design of the forming gap being smaller than the material thickness can ensure that the processed material is deformed under pressure during the extrusion process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the extrusion stretching molding die according to a specific embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the extrusion stretching molding die when the punch and the driving structure are engaged in a specific embodiment of the present invention;

[0017] Figure 3 This is an exploded view of the punch and drive structure of the extrusion stretching molding die according to a specific embodiment of the present invention.

[0018] Label Explanation:

[0019] 1. Die; 2. Punch; 21. Stamping block; 211. Moving groove; 212. Sliding groove; 213. Slider; 214. Oil injection hole; 3. Machining material; 4. Pressure rod; 41. Moving block; 42. Spring. Detailed Implementation

[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please refer to Figures 1 to 3 An extrusion stretching molding die includes a concave die 1 and a convex die 2. A forming gap is provided between the concave die 1 and the convex die 2. The size of the forming surface portion of the material 3 with flatness requirements corresponding to the forming gap is consistent with the thickness of the material 3. The size of the forming surface portion of the material 3 without flatness requirements corresponding to the forming gap is smaller than the thickness of the material 3.

[0022] As can be seen from the above description, the beneficial effects of this utility model are as follows: by setting the forming gap between the die 1 and the punch 2, when the part of the processed material 3 with flatness requirements is extruded, since the forming gap is consistent with the material thickness, the material will not generate internal stress, and the extruded part can have good flatness; while for other forming surfaces that do not require flatness, the design of the forming gap being smaller than the material thickness can ensure that the processed material 3 is deformed under pressure during the extrusion process.

[0023] Furthermore, the concave mold 1 is rotatably configured.

[0024] As can be seen from the above description, by adopting the rotatable setting of the cavity mold 1, it can be quickly separated from the molding surface of the processing material 3 due to extrusion during the demolding process.

[0025] Furthermore, the punch 2 is rotatably mounted.

[0026] As can be seen from the above description, by adopting the rotatable setting of the punch 2, which rotates and cooperates with the die 1, it can quickly separate from the forming surface of the processing material 3 due to extrusion during the demolding process.

[0027] Furthermore, the punch 2 is evenly divided along its circumference to form a plurality of stamping blocks 21, and each stamping block 21 is movable along the height direction of the punch 2.

[0028] As can be seen from the above description, the design of multiple stamping blocks 21 allows for easy disassembly and replacement, and the separation of the die 1 and the punch 2 can be achieved through their movement.

[0029] Furthermore, the plurality of stamping blocks 21 move away from the die 1 one by one.

[0030] As can be seen from the above description, the arrangement of multiple stamping blocks 21 moving one by one can reduce the lifting of the processed material 3 when the stamping blocks 21 move to demold, and avoid the processing material 3 being lifted due to compression and adhesion caused by simultaneous movement, making it difficult to demold.

[0031] Furthermore, it also includes a driving structure, which includes a pressure rod 4. The stamping block 21 is provided with a moving groove 211 extending along the height direction of the punch 2. The ends of the multiple moving grooves 211 near the die 1 are at the same height position. The lengths of the multiple moving grooves 211 increase sequentially according to the order in which their corresponding stamping blocks 21 move away from the die 1. The pressure rod 4 moves in conjunction with the moving groove 211 and drives the stamping block 21 to move along the height direction of the punch 2.

[0032] As described above, the movement of the pressure rod 4 within the moving groove 211 of the stamping block 21 enables the stamping block 21 to move and be demolded. Specifically, the design of the length of the moving groove 211 within the stamping block 21 allows the pressure rod 4 to first abut against the end of the moving groove 211 of the stamping block 21 with the shorter moving groove 211 during the mold separation process, thereby lifting it up. Then, it lifts up the other stamping blocks 21 one by one, achieving the gradual lifting and separation of the stamping blocks 21, thus preventing the processed material 3 from adhering during the demolding process.

[0033] Furthermore, the pressure rod 4 is provided with a moving block 41 that cooperates with the moving groove 211 of the stamping block 21 along its circumference.

[0034] As can be seen from the above description, the movement of the moving block 41 and the movement of the moving groove 211 are combined to drive the pressing block 21.

[0035] Furthermore, a spring 42 is provided on the end of the moving block 41 that is close to the moving groove 211 and away from the die 1.

[0036] As can be seen from the above description, the spring 42 on the moving block 41 can buffer the lifting of the pressure rod 4.

[0037] Furthermore, the end of the stamping block 21 is provided with an oil injection hole 214 that communicates with the moving groove 211.

[0038] As can be seen from the above description, the design of the oil injection hole 214 allows for the injection of lubricating oil into the moving groove 211, ensuring the smooth movement of the moving block 41 of the pressure rod 4 within the moving groove 211.

[0039] Furthermore, the side of the stamping block 21 is provided with a slider 213, and the side of the adjacent stamping block 21 is provided with a sliding groove 212, and the slider 213 and the sliding groove 212 move in cooperation.

[0040] As can be seen from the above description, the relative movement between the stamping blocks 21 is guided by the cooperation between the slider 213 on the side of the stamping block 21 and the slide groove 212.

[0041] Please refer to Figures 1 to 3 Embodiment 1 of this utility model is as follows:

[0042] An extrusion stretching die includes a die 1, a punch 2, and a driving structure. A forming gap is provided between the die 1 and the punch 2. The size of the forming gap corresponding to the forming surface portion of the processed material 3 with flatness requirements is consistent with the thickness of the processed material 3. The size of the forming gap corresponding to the forming surface portion of the processed material 3 without flatness requirements is smaller than the thickness of the processed material 3. Specifically, in this embodiment, the processed material 3 is formed into a bowl-like structure, having a bottom surface with flatness requirements and a side surface surrounding the bottom surface. In this case, the size of the forming gap relative to the bottom surface is consistent with the thickness of the processed material 3, while the size of the forming gap relative to the side surface is smaller than the thickness of the processed material 3.

[0043] The die 1 is rotatably configured, and this rotatable design can prevent the processing material 3 from adhering during separation. In other embodiments, the punch 2 can also be rotatably configured.

[0044] The punch 2 is evenly divided into multiple stamping blocks 21 along its circumference, and each stamping block 21 is movable along the height direction of the punch 2.

[0045] The multiple stamping blocks 21 move away from the die 1 one by one.

[0046] The driving structure includes a pressure rod 4. The stamping block 21 is provided with a moving groove 211 extending along the height direction of the punch 2. The ends of the multiple moving grooves 211 near the die 1 are at the same height position. The lengths of the multiple moving grooves 211 increase sequentially according to the order in which their corresponding stamping blocks 21 move away from the die 1. The pressure rod 4 moves in conjunction with the moving groove 211 and drives the stamping block 21 to move along the height direction of the punch 2.

[0047] The pressure rod 4 has a movable block 41 that cooperates with the movable groove 211 of the stamping block 21 along its circumference. A spring 42 is provided on the end of the movable block 41 near the movable groove 211 and away from the die 1. An oil injection hole 214 communicating with the movable groove 211 is provided at the end of the stamping block 21. A slider 213 is provided on the side of the stamping block 21, and a sliding groove 212 is provided on the side of the adjacent stamping block 21. The slider 213 and the sliding groove 212 are in movable cooperation.

[0048] In summary, the extrusion stretching die provided by this utility model, by setting the forming gap between the die and the punch, ensures that when the material is extruded to areas with flatness requirements, the forming gap is consistent with the material thickness, preventing internal stress and resulting in good flatness of the extruded area. Furthermore, for other forming surfaces that do not require flatness, the design of the forming gap being smaller than the material thickness ensures that the material is deformed under pressure during the extrusion process.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An extrusion stretching molding die, characterized in that, It includes a die cavity and a punch, and a forming gap is provided between the die cavity and the punch. The size of the forming gap corresponding to the forming surface portion of the material with flatness requirements is consistent with the thickness of the material. The size of the forming gap corresponding to the forming surface portion of the material without flatness requirements is smaller than the thickness of the material.

2. The extrusion stretching die according to claim 1, characterized in that, The die is rotatably mounted.

3. The extrusion stretching die according to claim 2, characterized in that, The punch is rotatably mounted.

4. The extrusion stretching die according to claim 3, characterized in that, The punch is evenly divided into multiple stamping blocks along its circumference, and each stamping block is movable along the height direction of the punch.

5. The extrusion stretching die according to claim 4, characterized in that, The multiple stamping blocks move away from the die one by one.

6. The extrusion stretching die according to claim 4, characterized in that, It also includes a driving structure, which includes a pressure rod. The stamping block is provided with a moving groove extending along the height direction of the punch. The ends of the multiple moving grooves near the die are at the same height position. The lengths of the multiple moving grooves increase sequentially as the corresponding stamping blocks move away from the die. The pressure rod moves in conjunction with the moving groove and drives the stamping block to move along the height direction of the punch.

7. The extrusion stretching die according to claim 6, characterized in that, The pressure bar is provided with a moving block that cooperates with the moving slot of the stamping block along its circumference.

8. The extrusion stretching die according to claim 7, characterized in that, A spring is provided on the end of the moving block that is close to the moving groove and away from the die.

9. The extrusion stretching die according to claim 7, characterized in that, The end of the stamping block is provided with an oil injection hole that communicates with the moving groove.

10. The extrusion stretching die according to claim 4, characterized in that, The side of the stamping block is provided with a slider, and the side of the adjacent stamping block is provided with a sliding groove, and the slider and the sliding groove move in coordination.

Images