High-strength steel forming die

Abstract

The utility model discloses a high-strength steel forming die. The high-strength steel forming die comprises a first die holder, a second die holder and a plurality of groups of pressing blocks, the first die holder is provided with a machining groove. The second die holder is located on the side, provided with the machining groove, of the first die holder and can be close to or away from the first die holder, a machining block is arranged on the side face, close to the machining groove, of the second die holder, and the machining block stretches into the machining groove when the second die holder is close to the first die holder. The multiple sets of material pressing blocks and the machining block are arranged on the same side of the second die base and arranged on the peripheral side of the machining block in a surrounding mode at intervals, and the material pressing blocks are elastically installed on the second die base and can elastically move in the direction close to or away from the first die base. According to the scheme, local severe deformation of the edge of the high-strength steel in the wave forming process can be controlled and relieved, so that tiny cracks generated on the edge of a material due to the local severe deformation are reduced or eliminated, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to a high-strength steel stamping die, in particular to a high-strength steel forming die. Background Art

[0002] A stamping die is a process equipment that processes metal or non-metallic plate or sheet materials into the required product shape. For example, patent CN213856762U discloses a high-strength steel plate hot stamping die, which is provided with fixing holes on both sides of the die fixing seat and the punch fixing seat and is equipped with hydraulic push rods, and the first pressing plate and the second pressing plate are fixedly connected by the hydraulic push rods and the telescopic tube, so that the die fixing seat and the punch fixing seat can demould the stamped steel plate workpiece through the hydraulic push rods.

[0003] However, during the wave forming process of the high-strength steel in the above-mentioned patent, tiny cracks are easily generated at the edges of the steel plate due to local severe bending and deformation, which has an adverse effect on product quality. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and propose a high-strength steel forming die to solve the technical problem in the prior art that during the wave forming process of high-strength steel, the edges of the steel plates are prone to produce tiny cracks due to local severe bending and deformation, which has an adverse effect on product quality.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a high-strength steel forming die, comprising:

[0007] The first die base is provided with a processing groove;

[0008] A second die base is located on a side of the first die base where the processing groove is provided, and can be moved close to and away from the first die base, and a processing block is provided on a side close to the processing groove, and the processing block extends into the processing groove when the second die base is close to the first die base; and

[0009] A plurality of groups of pressing blocks are arranged on the same side of the second die base as the processing block and are arranged at intervals around the processing block. Each pressing block is elastically mounted on the second die base and can elastically move in a direction approaching and away from the first die base.

[0010] In some embodiments, the second die base is provided with a plurality of installation channels at intervals around the circumference of the processing block, and each of the installation channels is open near one end of the first die base to form a communication port;

[0011] A plurality of groups of the pressing blocks are elastically and telescopically arranged in a plurality of the installation channels, and each of the pressing blocks has an initial state of elastically extending from the communication port to the installation channel, and has a compressed state of at least partially retreating from the communication port to the installation channel.

[0012] In some embodiments, each of the mounting channels opens at one end away from the first mold base to form a mounting opening;

[0013] The high-strength steel forming mold also includes multiple groups of mounting structures, which correspond to the multiple mounting channels respectively, and each of the mounting structures includes a mounting seat and an elastic member. The mounting seat is detachably mounted on a side of the second mold base where the mounting port is provided. The elastic member connects the mounting seat and the pressing block so that the pressing block can switch between the initial state and the compressed state.

[0014] In some embodiments, a side of the second mold base having the mounting opening is provided with a plurality of groups of connecting screw holes, the plurality of groups of connecting screw holes correspond to a plurality of the mounting channels, and each of the mounting bases is provided with a through hole corresponding to the connecting screw holes;

[0015] The mounting structure further includes a connecting bolt, which is passed through the through hole and screwed into the connecting screw hole, so that the mounting seat can be detachably mounted on the second mold base.

[0016] In some embodiments, the mounting seat is provided with an assembly hole connected to the mounting port, the elastic member is a compression spring arranged in the assembly hole, the pressing block includes a connecting arm and a buffer block, one end of the connecting arm extends from the mounting port into the assembly hole and is connected to the compression spring, and the other end is passed through the mounting channel, extends out of the connecting port, and is connected to the buffer block.

[0017] In some embodiments, the pressing block also includes a connecting seat and a fixing bolt. The connecting seat is connected to one end of the connecting arm away from the mounting seat and is provided with a matching hole. The buffer block is provided with a fixing screw hole corresponding to the matching hole. The fixing bolt is passed through the matching hole and screwed in the fixing screw hole.

[0018] In some embodiments, the first die base is provided with a plurality of limit blocks, the plurality of limit blocks and the processing groove are located on the same side of the first die base, and are arranged around the processing groove at intervals to limit the material;

[0019] The second mold base is provided with a plurality of avoidance holes corresponding to the plurality of limit blocks. When the second mold base is close to the first mold base, each limit block can extend into the corresponding avoidance hole.

[0020] In some embodiments, the first mold base is further provided with a material positioning rod, and the material positioning rod is arranged in the processing groove to be inserted into the positioning hole of the material.

[0021] In some embodiments, a mold base positioning hole is provided on a side of the second mold base close to the first mold base, and a mold base positioning rod is provided on the first mold base corresponding to the mold base positioning hole. When the second mold base is close to the first mold base, the mold base positioning rod can extend into the mold base positioning hole.

[0022] In some embodiments, the first mold base has a molding block on one side where the processing groove is provided, and the second mold base has a molding groove on one side where the processing block is provided. When the second mold base is close to the first mold base, the molding block can extend into the molding groove.

[0023] Compared with the prior art, the high-strength steel forming die provided by the utility model, when processing raw material sheets, first places the sheet on the first die seat, and the main part of the sheet corresponds to the processing groove, and the edge of the sheet is placed on the end edge of the processing groove; then the first die seat and the second die seat are driven to approach each other, and in this process, the processing block gradually presses the main part of the sheet corresponding to the processing groove into the processing groove, and at the same time, the pressing block can elastically press against the edge of the sheet resting on the end edge of the processing groove. In this way, in the process of the processing block pressing the main part of the sheet to form, the pressing block is squeezed by the edge of the sheet to produce elastic activity, and the edge of the sheet is slowly formed under the reaction force of the pressing block, so that the local severe deformation of the edge of the high-strength steel during the wave forming process can be controlled and slowed down, so as to reduce or eliminate the tiny cracks caused by the local severe deformation at the edge of the material, and improve the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a high-strength steel forming die provided in an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of an embodiment when a raw material sheet is processed into a semi-finished product;

[0026] Figure 3 yes Figure 1 A schematic diagram of the structure of the second die base and the pressing block;

[0027] Figure 4 yes Figure 1 A schematic diagram of the structure of the first die base;

[0028] Figure 5 yes Figure 3 A schematic diagram of the partial structure of the intermediate pressure material block, the mounting structure and the second die base;

[0029] Figure 6 yes Figure 5 A schematic diagram of the partial structure of the intermediate pressure material block and the second die base;

[0030] Figure 7 yes Figure 5 Schematic diagram of the medium pressure material block and installation structure;

[0031] Figure 8 yes Figure 7 A cross-sectional view of the mounting structure and the connecting arm;

[0032] Fig. 9 yes Figure 1 An enlarged schematic diagram of the second mold base and the mounting base;

[0033] Fig.10 yes Figure 7 The structural diagram of the middle buffer block;

[0034] Fig.11 yes Figure 4 Schematic diagram of the local structure of the first mold base.

[0035] Description of reference numerals:

[0036] 1. First die base; 1a. Processing groove; 11. Die base positioning rod; 12. Limit block; 13. Material positioning rod; 14. Forming block; 2. Second die base; 2a. Installation channel; 2b. Connecting port; 2c. Installation port; 2d. Connecting screw hole; 2e. Avoidance hole; 2f. Forming groove; 2g. Die base positioning hole; 21. Processing block; 3. Pressing block; 31. Connecting arm; 32. Buffer block; 32a. Fixing screw hole; 33. Connecting seat; 33a. Matching hole; 4. Installation structure; 41. Mounting seat; 41a. Through hole; 41b. Assembly hole; 42. Elastic member; 5. Raw material sheet; 5a. Positioning hole; 51. Main body; 52. Edge. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0038] In order to solve the technical problem in the prior art that during the wave forming process of high-strength steel, tiny cracks are easily generated at the edges of the steel plate due to local severe deformation, which has an adverse effect on product quality, the utility model provides a high-strength steel forming die, which can control and slow down the local severe deformation of the edges of the high-strength steel during the wave forming process, so as to reduce or eliminate the tiny cracks generated at the edges of the material due to local severe deformation, thereby improving product quality.

[0039] See also Figures 1 to 4 , Figures 1 to 4 It is a structural schematic diagram of a high-strength steel forming mold and a raw material sheet 5 processed into a semi-finished product in an embodiment of the utility model. The high-strength steel forming mold includes a first mold base 1, a second mold base 2 and a plurality of press blocks 3; the first mold base 1 is provided with a processing groove 1a; the second mold base 2 is located on a side of the first mold base 1 provided with the processing groove 1a, and can approach and move away from the first mold base 1, and a processing block 21 is provided on the side close to the processing groove 1a, and the processing block 21 extends into the processing groove 1a when the second mold base 2 approaches the first mold base 1; the plurality of press blocks 3 are provided on the same side of the second mold base 2 and are spaced around the processing block 21, and each press block 3 is elastically mounted on the second mold base 2, and can elastically move in the direction of approaching and moving away from the first mold base 1.

[0040] When the high-strength steel forming mold provided by the utility model processes the raw material sheet 5, the sheet is first placed on the first die base 1, and the main body 51 of the sheet corresponds to the processing groove 1a, and the edge 52 of the sheet is placed on the end edge of the processing groove 1a; then the first die base 1 and the second die base 2 are driven close to each other. During this process, the processing block 21 gradually presses the main body 51 of the sheet corresponding to the processing groove 1a into the processing groove 1a, and at the same time, the pressing block 3 can elastically press against the edge 52 of the sheet placed on the end edge of the processing groove 1a. In this way, in the process of the processing block 21 pressing the main body 51 of the sheet to form, the pressing block 3 is squeezed by the edge 52 of the sheet to produce elastic activity, and the edge 52 of the sheet is slowly formed under the reaction force of the pressing block 3, so as to control and slow down the local severe deformation of the edge of the high-strength steel during the wave forming process, so as to reduce or eliminate the tiny cracks caused by the local severe deformation at the edge of the material, thereby improving the product quality. It should be noted that, please refer to Figure 5 In the example of the attached drawings, four groups of pressing blocks 3 are provided.

[0041] In one embodiment, see Figure 5 and Figure 6 The second die base 2 is provided with a plurality of mounting channels 2a at intervals around the circumference of the processing block 21, and each mounting channel 2a is opened at one end close to the first die base 1 to form a connecting port 2b; a plurality of groups of pressing blocks 3 are elastically and telescopically arranged in the plurality of mounting channels 2a, and each pressing block 3 has an initial state of elastically extending from the connecting port 2b to the mounting channel 2a, and has a compressed state of retracting from the connecting port 2b to the mounting channel 2a.

[0042] In this embodiment, the pressing block 3 extends out of the connecting port 2b in the initial state so that it can be quickly pressed against the end edge of the sheet, and can at least partially retreat into the installation channel 2a under the squeezing of the sheet to switch to a compressed state, thereby achieving the goal of reducing the local severe deformation of the edge of the high-strength steel while making the overall structure more compact.

[0043] In one embodiment, see Figure 7 and Figure 8 , each mounting channel 2a opens at one end away from the first die base 1 to form a mounting port 2c; the high-strength steel forming mold also includes a plurality of mounting structures 4, the plurality of mounting structures 4 respectively correspond to the plurality of mounting channels 2a, and each mounting structure 4 includes a mounting seat 41 and an elastic member 42, the mounting seat 41 is detachably mounted on a side of the second die base 2 where the mounting port 2c is provided, the elastic member 42 connects the mounting seat 41 and the pressing block 3, so that the pressing block 3 can switch between an initial state and a compressed state.

[0044] In this embodiment, the mounting seat 41 and the pressing block 3 are connected by the elastic member 42, so that the pressing block 3 can move elastically in the direction of approaching and moving away from the first die base 1, and the structure is simple and reliable. At the same time, the mounting seat 41 is detachably connected to the second die base 2, so that the mounting seat 41 can be detached from the second die base 2 according to the strength and material of the sheet, and the elastic member 42 with corresponding elasticity can be replaced, thereby flexibly controlling the local severe deformation of the sheet, thereby improving convenience and practicality.

[0045] In one embodiment, see Figure 7 and Fig. 9 The second mold base 2 is provided with a plurality of groups of connecting screw holes 2d on one side of the mounting port 2c, and the plurality of connecting screw holes 2d correspond to the plurality of mounting channels 2a, and each mounting seat 41 is provided with a through hole 41a corresponding to the connecting screw hole 2d; the mounting structure 4 also includes a connecting bolt, which is passed through the through hole 41a and screwed into the connecting screw hole 2d, so that the mounting seat 41 can be detachably mounted on the second mold base 2.

[0046] In this embodiment, the mounting base 41 is detachably connected to the second mold base 2 by the cooperation of the connecting bolts, the through holes 41a and the connecting screw holes 2d, and the structure is simple and reliable. Specifically, in this solution, four through holes 41a are provided, and correspondingly, four connecting screw holes 2d and connecting bolts are provided, and the four connecting screw holes 2d are arranged at intervals around the peripheral side of the communication port 2b.

[0047] In one embodiment, the mounting seat 41 is provided with an assembly hole 41b connected to the mounting port 2c, the elastic member 42 is a compression spring arranged in the assembly hole 41b, the pressing block 3 includes a connecting arm 31 and a buffer block 32, one end of the connecting arm 31 extends from the mounting port 2c into the assembly hole 41b and is connected to the compression spring, and the other end is passed through the mounting channel 2a, extends out of the connecting port 2b, and is connected to the buffer block 32.

[0048] In this embodiment, the elastic member 42 is configured in the form of a compression spring, and the pressing block 3 is provided with a connecting arm 31 and a buffer block 32, one end of the connecting arm 31 extends into the installation channel 2a and the assembly hole 41b in turn, and is connected to the compression spring so that it extends out of the connecting port, and one end of the connected buffer block 32 can be elastically movable in the direction of approaching and moving away from the first mold base 1, and the cooperation of the connecting arm 31 and the installation channel 2a can guide the buffer block 32, ensuring that the buffer block 32 is accurately and stably pressed against the edge portion 52 of the sheet.

[0049] In one embodiment, see Figure 7 and Fig.10 The pressing block 3 also includes a connecting seat 33 and a fixing bolt. The connecting seat 33 is connected to one end of the connecting arm 31 away from the mounting seat 41 and is provided with a matching hole 33a. The buffer block 32 is provided with a fixing screw hole 32a corresponding to the matching hole 33a. The fixing bolt passes through the matching hole 33a and is screwed in the fixing screw hole 32a.

[0050] In this embodiment, the connecting seat 33 is fixedly connected to the connecting arm 31, and the buffer block 32 is detachably connected to the connecting seat 33 through the fixing bolts, the matching holes 33a and the fixing screw holes 32a. Therefore, when the buffer block 32 has wear defects after repeated use, the buffer block 32 can be disassembled and replaced in time to avoid damage to the material sheet caused by the buffer block 32, thereby ensuring product quality.

[0051] In one embodiment, see Fig.11 The first die base 1 is provided with a plurality of limit blocks 12, and the plurality of limit blocks 12 are located on the same side of the first die base 1 as the processing groove 1a, and are arranged at intervals around the processing groove 1a for limiting the material; the second die base 2 is provided with a plurality of avoidance holes 2e corresponding to the plurality of limit blocks 12, and when the second die base 2 is close to the first die base 1, each limit block 12 can extend into the corresponding avoidance hole 2e.

[0052] In this embodiment, a plurality of limit blocks 12 are arranged at intervals around the processing groove 1a. In this way, when the material sheet is placed in the space surrounded by the plurality of limit blocks 12, the limit blocks 12 can be used to limit the material sheet to avoid accidental deviation of the material sheet when the second mold base 2 approaches the first mold base 1.

[0053] In one embodiment, the first mold base 1 is further provided with a material positioning rod 13, and the material positioning rod 13 is provided in the processing groove 1a, and is used for being inserted into the positioning hole 5a of the material.

[0054] In this embodiment, a material positioning rod 13 is further provided in the processing groove 1a, so that the material positioning rod 13 can be passed through the positioning hole 5a of the material sheet to facilitate the positioning of the material sheet, improve convenience, and further prevent the material sheet from deviating during the forming process.

[0055] In one embodiment, a mold base positioning hole 2g is provided on a side of the second mold base 2 close to the first mold base 1, and a mold base positioning rod 11 is provided on the first mold base 1 corresponding to the mold base positioning hole 2g. When the second mold base 2 is close to the first mold base 1, the mold base positioning rod 11 can extend into the mold base positioning hole 2g.

[0056] In this solution, a die base positioning rod 11 is provided on the first die base 1, and a die base positioning hole 2g is correspondingly provided on the second die base 2. In this way, when the first die base 1 and the second die base 2 are driven to approach each other, the die base positioning rod 11 can be first inserted into the die base positioning hole 2g to ensure that the processing block 21 accurately extends into the processing groove 1a. It should be noted that in this embodiment, there are multiple groups of die base positioning rods 11 and die base positioning holes 2g. Specifically, in the example of the attached figure, there are four groups of die base positioning rods 11 and die base positioning holes 2g at intervals.

[0057] In one embodiment, the first mold base 1 is provided with a molding block 14 on one side of the processing groove 1a, and the second mold base 2 is provided with a molding groove 2f on one side of the processing block 21. When the second mold base 2 is close to the first mold base 1, the molding block 14 can extend into the molding groove 2f.

[0058] In this embodiment, the material sheet is first processed into a semi-finished product by the processing groove 1a and the processing block 21, and the tiny cracks at the edge 52 of the material sheet are alleviated; then the semi-finished product is formed and punched by the forming groove 2f and the forming block 14, and finally processed into the required product shape. In this way, the use of the distributed stamping method can further alleviate the tiny cracks caused by the severe deformation of the edge 52 of the material sheet.

[0059] In order to better understand the present invention, the following Figures 1 to 11 The technical solution of the utility model is described in detail:

[0060] First, place the raw material sheet 5 in the processing groove 1a, and limit the sheet through the material positioning rod 13 and the limiting block 12, then center the die base positioning rod 11 and penetrate the die base positioning hole 2g, and then drive the first die base 1 and the second die base 2 to approach each other, so that the processing block 21 presses the main part 51 of the sheet against the processing groove 1a, and presses against the edge part 52 of the sheet through the material pressing block 3 connected with a compression spring, so as to reduce the local severe deformation of the edge of the high-strength steel during the wave-shaped forming process, thereby reducing or eliminating the tiny cracks caused by the local severe deformation on the edge of the material. After the sheet is initially processed into a semi-finished product through the processing groove 1a and the processing block 21, the semi-finished product is formed and punched through the forming groove 2f and the forming block 14 to obtain the required product shape.

[0061] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A high-strength steel forming die, characterized in that: include: The first die base is provided with a processing groove; A second die base is located on a side of the first die base where the processing groove is provided, and can be moved close to and away from the first die base, and a processing block is provided on a side close to the processing groove, and the processing block extends into the processing groove when the second die base is close to the first die base; and A plurality of groups of pressing blocks are arranged on the same side of the second die base as the processing block and are arranged at intervals around the processing block. Each pressing block is elastically mounted on the second die base and can elastically move in a direction approaching and away from the first die base.

2. The high-strength steel forming die according to claim 1, characterized in that: The second die base is provided with a plurality of installation channels at intervals around the circumference of the processing block, and each of the installation channels is opened near one end of the first die base to form a communication port; A plurality of groups of the pressing blocks are elastically and telescopically arranged in a plurality of the installation channels, and each of the pressing blocks has an initial state of elastically extending from the communication port to the installation channel, and has a compressed state of at least partially retreating from the communication port to the installation channel.

3. The high-strength steel forming die according to claim 2, characterized in that: Each of the installation channels is open at one end away from the first mold base to form an installation opening; The high-strength steel forming mold also includes multiple groups of mounting structures, which correspond to the multiple mounting channels respectively, and each of the mounting structures includes a mounting seat and an elastic member. The mounting seat is detachably mounted on a side of the second mold base where the mounting port is provided. The elastic member connects the mounting seat and the pressing block so that the pressing block can switch between the initial state and the compressed state.

4. The high-strength steel forming die according to claim 3, characterized in that: A side of the second mold base having the mounting opening is provided with a plurality of groups of connecting screw holes, the plurality of groups of connecting screw holes correspond to a plurality of mounting channels, and each mounting base is provided with a through hole corresponding to the connecting screw holes; The mounting structure further includes a connecting bolt, which is passed through the through hole and screwed into the connecting screw hole, so that the mounting seat can be detachably mounted on the second mold base.

5. The high-strength steel forming die according to claim 3, characterized in that: The mounting seat is provided with an assembly hole connected to the mounting port, the elastic member is a compression spring arranged in the assembly hole, the pressing block includes a connecting arm and a buffer block, one end of the connecting arm extends from the mounting port into the assembly hole and is connected to the compression spring, and the other end is passed through the mounting channel, extends out of the connecting port, and is connected to the buffer block.

6. The high-strength steel forming die according to claim 5, characterized in that: The pressing block also includes a connecting seat and a fixing bolt. The connecting seat is connected to one end of the connecting arm away from the mounting seat and is provided with a matching hole. The buffer block is provided with a fixing screw hole corresponding to the matching hole. The fixing bolt passes through the matching hole and is screwed into the fixing screw hole.

7. The high-strength steel forming die according to claim 1, characterized in that: The first die base is provided with a plurality of limit blocks, the plurality of limit blocks and the processing groove are located on the same side of the first die base, and are arranged around the processing groove at intervals to limit the material; The second mold base is provided with a plurality of avoidance holes corresponding to the plurality of limit blocks. When the second mold base is close to the first mold base, each limit block can extend into the corresponding avoidance hole.

8. The high-strength steel forming die according to claim 7, characterized in that: The first die base is also provided with a material positioning rod, and the material positioning rod is arranged in the processing groove and is used for being inserted into the positioning hole of the material.

9. The high-strength steel forming die according to claim 1, characterized in that: A mold base positioning hole is provided on one side of the second mold base close to the first mold base, and a mold base positioning rod is provided on the first mold base corresponding to the mold base positioning hole. When the second mold base is close to the first mold base, the mold base positioning rod can extend into the mold base positioning hole.

10. The high-strength steel forming die according to claim 1, characterized in that: The first die base has a molding block on one side where the processing groove is provided, and the second die base has a molding groove on one side where the processing block is provided. When the second die base is close to the first die base, the molding block can extend into the molding groove.

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