Punch forming die for automobile cross beam

Abstract

The utility model is suitable for the technical field of punch forming dies, and provides an automobile cross beam punch forming die which comprises an upper die, a lower die connected with the upper die and a lower die base arranged at the bottom of the lower die, and a cross beam is arranged between the lower die and the lower die base. The upper die comprises an upper die cover of a rectangular structure, a connecting strip and an embedding groove are arranged on the side, close to the lower die, of the upper die, the connecting strip and the embedding groove are arranged in the width direction of the upper die and are symmetrically arranged relative to the axis position of the upper die, and the lower die comprises a lower die bottom cover of a rectangular structure. The device solves the problems that the bottom of a punch forming die is not provided with a buffer, the die is easily damaged, and a machined automobile cross beam is pressed to sink into the die and is not easy to take out, and achieves the purposes that a lower die base is arranged at the bottom of the die to provide the buffer, and the punching die is prevented from being pressed to be damaged; and the automobile cross beam can be conveniently taken out from the mold after being machined.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping and forming dies, and more specifically, to a stamping and forming die for an automobile cross beam. Background Art

[0002] Stamping die is a special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) in cold stamping process, which is called cold stamping die (commonly known as 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 it, thereby obtaining the required parts.

[0003] The automobile beam, also known as the frame, is an important part of the automobile. It is generally composed of two longitudinal beams and several cross beams, which are supported on the wheels through the suspension device, front axle and rear axle. The function of the frame is to support and connect the various assemblies of the car, so that each assembly maintains a relatively correct position and withstands various loads inside and outside the car. Therefore, the frame must have sufficient strength and rigidity to withstand the load of the car and the impact from the wheels. As an important part of the automobile beam, the automobile cross beam also needs to have sufficient strength and rigidity, so a stamping die needs to be used for stamping in the production process.

[0004] The existing stamping die does not have a buffer at the bottom during the stamping process of the automobile beam, which can easily cause damage to the die during the pressure application process. At the same time, after the existing stamping die is stamped on the automobile beam, the processed automobile beam is pressed into the mold and is difficult to remove. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a stamping mold for an automobile beam, in which a lower die seat is arranged at the bottom of the mold to provide a buffer to prevent the stamping mold from being damaged by pressure, and at the same time a lifting part is arranged inside the mold to facilitate the removal of the automobile beam from the inside of the mold after the processing is completed.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A stamping die for an automobile cross beam comprises an upper die, a lower die connected to the upper die, and a lower die base arranged at the bottom of the lower die, wherein a cross beam is arranged between the lower die and the lower die base; the upper die comprises an upper die cover arranged as a rectangular structure, a connecting strip and an interlocking groove are arranged on the side of the upper die close to the lower die, the connecting strip and the interlocking groove are arranged along the width direction of the upper die and are symmetrically arranged about the axis of the upper die, the lower die comprises a lower die bottom cover arranged as a rectangular structure, the shape and size of the lower die bottom cover are consistent with those of the upper die cover, the lower die base is arranged as a rectangular structure with an area larger than that of the lower die, and the top is connected to the bottom of the lower die.

[0008] By adopting the above technical solution, during the stamping process of the crossbeam, the bottom of the lower die seat can provide support and cushioning for the die from all sides of the lower die at the bottom of the lower die, thereby effectively preventing the die from being damaged by pressure.

[0009] The utility model is further configured as follows: the connecting strips are installed on the side walls of the upper mold cover and are symmetrically arranged in two groups about the axis of the length direction of the upper mold cover; the connecting strips are connected to the side walls of the lower mold bottom cover away from the side of the upper mold cover; the engaging grooves are configured as a rectangular structure and are arranged downward from the bottom of the upper mold cover; the engaging grooves are inserted downward into the lower mold.

[0010] The utility model is further configured as follows: a group of pressing parts are arranged on the bottom of the upper mold cover close to the side of the lower mold bottom cover, the pressing parts are arranged along the length direction of the upper mold cover, and their shape is adapted to the shape of the crossbeam; a group of positioning bolts are arranged at the four corners of the bottom of the upper mold cover, the positioning bolts are arranged as cylindrical structures, and the height is less than the height of the fitting groove.

[0011] The utility model is further configured as follows: a group of plug-in grooves are respectively opened at the top of the lower mold bottom cover corresponding to the positions of the two groups of interlocking grooves, the shape and height of the plug-in grooves are consistent with the interlocking grooves, a through hole is opened inside the lower mold bottom cover along its length direction, and a lifting piece is arranged inside the through hole.

[0012] The utility model is further configured as follows: the top shape of the lifting member is adapted to the shape of the cross beam, and the height is adapted to the height of the bottom cover of the lower mold; the positions of the lifting member and the pressing member correspond to each other, and a cross beam is arranged between the lifting member and the pressing member.

[0013] By adopting the above technical solution, after the crossbeam is placed on the pressing part and the lifting part, the pressing part and the lifting part can cooperate to fully fit with the crossbeam; after the stamping process of the crossbeam is completed, the lifting part can be moved inside the bottom cover of the lower mold to make the crossbeam fall out from the bottom cover of the lower mold.

[0014] The utility model is further configured as follows: a group of positioning pins are arranged at the four corners of the top of the bottom cover of the lower mold, and the positioning pins are arranged as cylindrical structures whose shapes are adapted to the positioning bolts, and their positions correspond to the positioning bolts respectively.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. A lifting piece is arranged inside the bottom cover of the lower die. During the processing of the cross beam, the pressing piece and the lifting piece can cooperate to fully fit with the cross beam, ensuring that pressure can be evenly applied to the cross beam during the stamping process. After the stamping process of the cross beam is completed, the lifting piece can be moved inside the bottom cover of the lower die to make the cross beam detach from the bottom cover of the lower die, making it easier to take out the cross beam.

[0017] 2. During the stamping process of the beam, the bottom of the lower die seat can provide support and cushioning for the die from all sides of the lower die, thereby effectively preventing the die from being damaged by pressure, which ultimately affects the processing quality of the finished beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic structural diagram of a stamping die for a cross beam of an automobile.

[0019] Figure 2 The utility model is a schematic diagram of the exploded structure of the stamping die for the automobile cross beam.

[0020] Figure 3 It is a structural schematic diagram of the upper mold in the utility model.

[0021] Figure 4 It is a structural schematic diagram of the lower mold in the utility model.

[0022] Description of reference numerals: 1, upper mold; 11, upper mold cover; 12, connecting strip; 13, fitting groove; 14, pressing piece; 15, positioning bolt;

[0023] 2. Lower die; 21. Lower die bottom cover; 22. Insertion slot; 23. Lifting piece; 24. Positioning pin;

[0024] 3. Lower die base; 4. Crossbeam. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] For example, see Figure 1-4 , the utility model provides the following technical solutions:

[0028] Specifically refers to a stamping die for automobile cross beams, see Figure 1 , including an upper die 1, a lower die 2 connected to the upper die 1, and a lower die base 3 arranged at the bottom of the lower die 2, and a crossbeam 4 is arranged between the lower die 2 and the lower die base 3. After the upper die 1 and the lower die 2 are connected, the crossbeam 4 placed inside them can be stamped, and during the processing, the lower die base 3 at the bottom of the lower die 2 can provide support and buffer for the lower die 2.

[0029] See also Figure 1-3 The upper mold 1 includes an upper mold cover 11, a connecting strip 12, an interlocking groove 13, a pressing piece 14 and a positioning bolt 15. The upper mold cover 11 is set to a rectangular structure, and the connecting strip 12 and the interlocking groove 13 are set on the side close to the lower mold 2. The connecting strip 12 and the interlocking groove 13 are set along the width direction of the upper mold 1, and are symmetrically arranged about the axis of the upper mold 1. The connecting strip 12 is installed on the side wall of the upper mold cover 11, and is symmetrically arranged in two groups about the axis of the length direction of the upper mold cover 11. The side of the connecting strip 12 away from the upper mold cover 11 is connected to the side wall of the lower mold bottom cover 21. After the upper mold 1 and the lower mold 2 are positioned and fitted, the connection between the upper mold 1 and the lower mold 2 can be achieved through the connecting strip 12 to ensure that the connection between the two is reliable, and to avoid displacement of the upper mold 1 and the lower mold 2 during the subsequent stamping process, thereby ensuring the quality of the stamping process of the crossbeam 4.

[0030] See also Figure 1-3 , the interlocking groove 13 is set as a rectangular structure and is set downward from the bottom of the upper die cover 11, and the interlocking groove 13 is inserted downward into the lower die 2. A group of positioning bolts 15 are set at the four corners of the bottom of the upper die cover 11. The positioning bolts 15 are set as a cylindrical structure, and the height is less than the height of the interlocking groove 13. Before the stamping of the crossbeam 4, it is necessary to first position and combine the upper die 1 and the lower die 2. In this process, the positioning bolts 15 can be used to cooperate with the positioning pins 24 to position the interlocking groove 13 downward into the lower die 2. Thereby ensuring that the upper die 1 and the lower die 2 are accurately positioned and the connection is reliable. A group of pressing pieces 14 are set on the side of the bottom of the upper die cover 11 close to the bottom cover 21 of the lower die. The pressing pieces 14 are set along the length direction of the upper die cover 11, and their shape is adapted to the shape of the crossbeam 4. During the stamping process, the pressing pieces 14 can be fitted with the crossbeam 4 to ensure that pressure can be fully and evenly applied to the crossbeam 4 to complete the processing of the crossbeam 4.

[0031] See also Figure 1-2 and Figure 4The lower mold 2 includes a lower mold bottom cover 21, a plug-in groove 22, a lifting piece 23 and a positioning pin 24. The lower mold bottom cover 21 is set as a rectangular structure. The shape and size of the lower mold bottom cover 21 are consistent with those of the upper mold cover 11, and can fit with the upper mold cover 11 to complete the processing of the crossbeam 4. A group of plug-in grooves 22 are respectively opened at the top of the lower mold bottom cover 21 corresponding to the positions of the two groups of interlocking grooves 13. The shape and height of the plug-in grooves 22 are consistent with the interlocking grooves 13. During the connection process between the upper mold 1 and the lower mold 2, the interlocking grooves 13 can be inserted into the grooves 22 to complete the positioning of the upper mold 1 and the lower mold 2, and at the same time ensure the reliability of the connection between the two to a certain extent. A group of positioning pins 24 are set at the four corners of the top of the lower mold bottom cover 21. The positioning pins 24 are set as cylindrical structures whose shapes are adapted to the positioning bolts 15, and their positions correspond to the positioning bolts 15 respectively. During the positioning process of the upper mold 1 and the lower mold 2 , the positioning of the upper mold 1 and the lower mold 2 can be completed by connecting the positioning bolt 15 with the positioning pin 24 .

[0032] See also Figure 1-2 and Figure 4 , a through hole is opened inside the lower die bottom cover 21 along its length direction, and a lifting piece 23 is arranged inside the through hole, and the lifting piece 23 can move in the vertical direction inside the through hole. The top shape of the lifting piece 23 is adapted to the shape of the cross beam 4, and the height is adapted to the height of the lower die bottom cover 21. The positions of the lifting piece 23 and the pressing piece 14 correspond to each other, and a cross beam 4 is arranged between the lifting piece 23 and the pressing piece 14. After the cross beam 4 is placed on the pressing piece 14 and the lifting piece 23, it can be fully fitted with the cross beam 4 through the cooperation of the pressing piece 14 and the lifting piece 23, so as to ensure that the pressure can be evenly applied to the cross beam 4 during the stamping process. After the stamping process of the cross beam 4 is completed, the lifting piece 23 can be moved inside the lower die bottom cover 21 to make the cross beam 4 fall out from the inside of the lower die bottom cover 21, so as to facilitate the removal of the cross beam 4.

[0033] See also Figure 1-2 The lower die seat 3 is set to a rectangular structure with an area larger than the lower die 2, and the top is connected to the bottom of the lower die 2. During the stamping process of the cross beam 4, the bottom of the lower die seat 3 can be at the bottom of the lower die 2, providing support and buffering for the mold from all sides of the lower die 2, thereby effectively avoiding damage to the mold due to pressure, and ultimately affecting the processing quality of the finished product of the cross beam 4.

[0034] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A stamping die for an automobile cross beam, characterized in that: It comprises an upper die (1), a lower die (2) connected to the upper die (1), and a lower die base (3) arranged at the bottom of the lower die (2), wherein a crossbeam (4) is arranged between the lower die (2) and the lower die base (3); The upper mold (1) comprises an upper mold cover (11) configured as a rectangular structure. A connecting strip (12) and an engaging groove (13) are provided on one side of the upper mold (1) close to the lower mold (2). The connecting strip (12) and the engaging groove (13) are arranged along the width direction of the upper mold (1) and are symmetrically arranged about the axis of the upper mold (1). The lower mold (2) comprises a lower mold bottom cover (21) configured as a rectangular structure. The shape and size of the lower mold bottom cover (21) are consistent with those of the upper mold cover (11). The lower mold base (3) is configured as a rectangular structure having an area larger than that of the lower mold (2), and the top is connected to the bottom of the lower mold (2).

2. The automobile cross beam stamping die according to claim 1, characterized in that: The connecting strips (12) are mounted on the side wall of the upper mold cover (11) and are arranged in two groups symmetrically about the longitudinal axis of the upper mold cover (11); the side of the connecting strips (12) away from the upper mold cover (11) is connected to the side wall of the lower mold bottom cover (21); The fitting groove (13) is configured as a rectangular structure and is arranged downward from the bottom of the upper mold cover (11). The fitting groove (13) is inserted downward into the interior of the lower mold (2).

3. The stamping die for an automobile cross beam according to claim 2, characterized in that: A group of pressing pieces (14) are arranged at the bottom of the upper mold cover (11) near the lower mold bottom cover (21), and the pressing pieces (14) are arranged along the length direction of the upper mold cover (11) and their shapes are adapted to the shape of the crossbeam (4); A group of positioning bolts (15) are arranged at the four corners of the bottom of the upper mold cover (11), and the positioning bolts (15) are arranged in a cylindrical structure, and the height thereof is smaller than the height of the fitting groove (13).

4. The automobile cross beam stamping die according to claim 3, characterized in that: A group of insertion grooves (22) are respectively provided at the top of the lower mold bottom cover (21) and at positions corresponding to the two groups of insertion grooves (13); the shape and height of the insertion grooves (22) are consistent with those of the insertion grooves (13); a through hole is provided inside the lower mold bottom cover (21) along its length direction, and a lifting member (23) is provided inside the through hole.

5. The automobile cross beam stamping die according to claim 4, characterized in that: The top shape of the lifting member (23) matches the shape of the cross beam (4), and the height matches the height of the lower mold bottom cover (21); the positions of the lifting member (23) and the pressing member (14) correspond to each other, and a cross beam (4) is arranged between the lifting member (23) and the pressing member (14).

6. The automobile cross beam stamping die according to claim 5, characterized in that: A group of positioning pins (24) are arranged at the four corners of the top of the lower mold bottom cover (21), and the positioning pins (24) are arranged as cylindrical structures whose shapes match the positioning bolts (15) and whose positions correspond to the positioning bolts (15).

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