Beam forming mechanism for automobile manufacturing

Abstract

The invention discloses a cross beam forming mechanism for automobile manufacturing, and belongs to the technical field of automobile cross beam machining, the cross beam forming mechanism comprises a base, an end seat is mounted on the base, a lower die plate is arranged in the end seat, the end seat is of a hollow structure, a stamping supporting block is arranged in the middle of the interior of the end seat, the lower die plate is arranged in the stamping supporting block, and a cold air box is assembled on the lower surface of the end seat; a cold air box is arranged on the end base, an air inlet pipe for guiding out cold air is arranged in the cold air box, the air inlet pipe penetrates through the end base and extends into the end base, and a plurality of rib pipes are symmetrically connected to the pipe section, located in the end base, of the air inlet pipe. The problems of cross beam size deviation, surface quality reduction and the like caused by too high die temperature are avoided, the size precision and the surface smoothness of a stamping part are improved, the stable die temperature is beneficial to reducing the debugging time and the rejection rate caused by die temperature change, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile weighing beam processing, in particular to a crossbeam forming mechanism for automobile manufacturing. Background Art

[0002] In the prior art, stamping of automobile cross beams is usually completed by using a stamping machine that cooperates with an upper die set and a lower die set. However, as the processing time increases, the lower die set of the stamping machine with a long stamping service life will deform due to years of high pressure, resulting in a high maintenance rate of the lower die set. At the same time, the stamped automobile cross beam is easily stuck in the lower die set and is difficult to dislodge.

[0003] Chinese invention patent CN118403946A discloses a crossbeam forming mechanism for automobile manufacturing. By setting a mold assembly, it is possible to achieve that during the process of stamping and forming the automobile crossbeam, the supporting frame and the mounting plate can also be extruded and shaped, so that the shapes of the supporting frame and the mounting plate are always consistent with the positioning groove, thereby achieving that the mold can be kept accurate and intact each time the automobile crossbeam is stamped and formed, so that the stamped automobile crossbeam always meets the precision requirements, avoiding the prior art that the lower mold group is stamped and deformed as the use time increases, resulting in quality problems in the subsequent production of automobile crossbeams.

[0004] When stamping the cross beam of an automobile, the heat generated by the friction of the forming mold will affect the mold and the cross beam. The heat generated by the friction will increase the surface temperature of the mold, causing the hardness of the mold material to decrease, thereby aggravating the wear of the mold. Especially on the working surface of the mold, such as the punch and the die, the wear will be more obvious, reducing the service life of the mold. The heat generated by the friction will increase the surface temperature of the cross beam, causing the oxide film on the surface of the cross beam to thicken, thus affecting the surface quality of the cross beam. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In order to solve the problems raised in the above background technology, the present invention adopts the following technical solutions.

[0007] A crossbeam forming mechanism for automobile manufacturing, comprising a base, on which an end seat is installed. A lower template is built inside the end seat. The end seat is of a hollow structure, and a stamping support block is centrally arranged inside the end seat. The lower template is placed inside the stamping support block. A cold air box is assembled on the lower surface of the end seat. An air inlet pipe for discharging cold air is arranged inside the cold air box, and the air inlet pipe penetrates through the end seat and extends into it. A plurality of rib pipes are symmetrically connected to the pipe section of the air inlet pipe located inside the end seat. The cold air inside the cold air box is evenly distributed in the plurality of rib pipes through the air inlet pipe. The rib pipes surrounding the stamping support block use the cold air in the pipes to cool the lower template, reducing the influence of the temperature formed by stamping on the crossbeam.

[0008] Preferably, the main body of the stamping support block is a rectangular body integrally connected to the end seat, and a placement groove adapted to the lower template is opened on the upper surface of the rectangular body. A space for laying the air inlet pipe and its rib pipes is provided between the lower surface of the stamping support block and the inner bottom surface of the end seat.

[0009] Preferably, air outlet openings are opened on the side walls of the placement groove of the stamping support block, and the ports of the rib pipes are aligned with the air outlet openings. After the cold air is discharged from the rib pipes, it spreads into the stamping support block through the air outlet openings to cool the lower template.

[0010] Preferably, overlapping ears are arranged at both ends of the upper surface of the lower template. When the lower template is assembled in the placement groove, its overlapping ears overlap on the upper surface of the end seat.

[0011] Preferably, an air duct is arranged inside the cold air box, and a fan is connected to the tail of the air duct. The front end of the air duct is of a conical structure, and the end of the air inlet pipe is inserted into the front end of the air duct and communicated with its interior.

[0012] Preferably, an installation platform protrudes inward from the lower surface of the middle part of the air duct. A semiconductor refrigerating sheet is fixedly installed on the upper surface of the installation platform, and the heating surface of the semiconductor refrigerating sheet faces downward. Windward slopes are arranged on both sides of the installation platform, and the fan blows the air cooled by the semiconductor refrigerating sheet into the air inlet pipe.

[0013] Preferably, heat dissipation holes are opened on both sides of the middle part of the cold air box, and a sealing channel is arranged between the heat dissipation holes and the outer side surface of the installation platform of the air duct to guide the heat generated by the hot end of the semiconductor refrigerating sheet to be discharged outward through the heat dissipation holes.

[0014] Preferably, columns are arranged on the upper surface of the base and on both sides of the end seat. A pressing plate is slidably connected to the columns. An upper template is arranged on the lower surface of the pressing plate. A spring is sleeved on the columns, and the pressing plate overlaps on the upper surface of the spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) In the present invention, through structures such as a cold air box, an air inlet pipe, and ribbed pipes, the lower template is cooled by cold air, thereby reducing the influence of the temperature formed during stamping on the crossbeam, which helps to improve the forming quality of the crossbeam. An air outlet is provided on the side wall of the placement groove of the stamping support block, and the port of the ribbed pipe is aligned with the air outlet, so that the cold air can accurately spread into the stamping support block to cool the lower template, improving the cooling effect. Further, the air duct, the semiconductor refrigeration sheet, and the fan form an efficient cold air supply system, which can effectively take away the heat generated by the mold during stamping, reduce the mold temperature, and reduce problems such as deformation and cracking of the mold caused by thermal stress, thereby extending the service life of the mold.

[0017] (2) In the present invention, the cooling system can keep the mold at an appropriate working temperature, avoid problems such as dimensional deviation of the crossbeam and decline in surface quality caused by too high mold temperature, improve the dimensional accuracy and surface finish of the stamped parts. The stable mold temperature helps to reduce the debugging time and reject rate caused by the change of mold temperature, improving production efficiency. Moreover, during the stamping process, the crossbeam will generate heat due to plastic deformation. If not cooled in time, it will cause deformation of the crossbeam after cooling. The cooling system of this patent can quickly take away the heat of the crossbeam, reduce its deformation amount, and improve the shape accuracy of the crossbeam. The cooling system can rapidly reduce the surface temperature of the crossbeam, reduce the possibility of surface oxidation and decarburization, and improve the surface quality.

[0018] (3) In the present invention, the main body of the stamping support block is a rectangular body integrally connected to the end seat. There is a placement groove on the upper surface adapted to the lower template, and a space for laying the air inlet pipe and its ribbed pipes is provided on the lower surface and the inner bottom surface of the end seat. This structure not only facilitates the placement of the lower template but also provides a reasonable layout space for the cooling structure. Lapping ears are provided at both ends of the upper surface of the lower template. When assembled in the placement groove, the lapping ears lap on the upper surface of the end seat, facilitating the assembly and positioning of the lower template. Description of the Drawings

[0019] Figure 1 is the three-dimensional structure of the crossbeam forming mechanism for automobile manufacturing in the present invention Figure 1 .

[0020] Figure 2 is the three-dimensional structure of the crossbeam forming mechanism for automobile manufacturing in the present invention Figure 2 .

[0021] Figure 3 is the front view of the crossbeam forming mechanism for automobile manufacturing in the present invention.

[0022] Figure 4 is the assembly schematic diagram of the cooling system in the present invention.

[0023] Figure 5 is the structure diagram of the end seat in the present invention.

[0024] Figure 6This is an exploded view of the cooling system, lower die and its end seat in the present invention.

[0025] Figure 7 This is a schematic structural diagram of the cooling system and the lower die in the present invention.

[0026] Figure 8 This is a structural diagram of the cooling system in the present invention.

[0027] The corresponding relationship between the annotations of each attached figure and the component names in the figure is as follows:

[0028] 100, base; 101, column; 102, spring; 103, pressing plate; 104, upper template; 105, cold air box; 1051, heat dissipation hole; 1052, air duct; 1053, fan; 1054, semiconductor refrigeration sheet; 1055, windward slope; 106, end seat; 1061, stamping support block; 1062, air outlet; 1063, air inlet pipe; 1064, ribbed pipe; 107, lower template; 1071, overlapping ear. Detailed implementation manners

[0029] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be made in conjunction with the accompanying drawings of the specification.

[0030] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0031] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other with other embodiments. The present invention provides the following embodiments.

[0032] Such as Figures 1 - 3As shown in the figure, this is the structural diagram of the crossbeam forming mechanism in the automobile manufacturing of this embodiment. The crossbeam forming mechanism in this embodiment includes a base 100, on which an end seat 106 is installed. The end seat 106 houses a lower template 107. The end seat 106 is a hollow structure, and a stamping support block 1061 is centrally arranged inside the end seat 106. The lower template 107 is placed in the stamping support block 1061. The main body of the stamping support block 1061 in this embodiment is a rectangular body integrally connected to the end seat 106, and a placement groove adapted to the lower template 107 is provided on the upper surface of the rectangular body. Thus, the lower templates 107 for manufacturing crossbeams of different shapes can be placed in the placement groove, enabling the lower template 107 and the end seat 106 to form a whole, making this device applicable to the stamping production of different crossbeams. Further, in order to facilitate the assembly and positioning of the lower template 107, lapping ears 1071 are provided at both ends of the upper surface of the lower template 107 in this embodiment. When the lower template 107 is assembled in the placement groove, its lapping ears 1071 lap on the upper surface of the end seat 106. Still further, in this embodiment, columns 101 are provided on the upper surface of the base 100 and on both sides of the end seat 106. A pressure plate 103 is slidably connected to the columns 101. An upper template 104 is provided on the lower surface of the pressure plate 103. A spring 102 is sleeved on the columns 101, and the pressure plate 103 laps on the upper surface of the spring 102. In summary, in this embodiment, the crossbeam material is placed on the lower template 107. The pressure plate 103 slides downward along the columns 101 under an external force. At this time, the spring 102 is compressed. The pressure plate 103 drives the upper template 104 on its lower surface to move downward. The upper template 104 and the lower template 107 approach each other and apply pressure to the crossbeam material in the middle, causing the crossbeam material to undergo plastic deformation under the shape constraints of the two templates, thereby forming into a crossbeam. When the external force disappears, the compressed spring 102 releases the stored elastic potential energy, pushing the pressure plate 103 to slide upward along the columns 101, thereby driving the upper template 104 back to the initial position and completing a stamping cycle.

[0033] In Figure 4 this embodiment, a cold air box 105 is assembled on the lower surface of the end seat 106. The cold air box 105 serves as a supply source of cold air, providing cold energy for the entire cooling system and being the starting component for realizing the cooling of the lower template 107. An air inlet pipe 1063 for guiding cold air out is provided in the cold air box 105, and the air inlet pipe 1063 penetrates the end seat 106 and extends to the inside to be responsible for transmitting the cold air in the cold air box 105 to the inside of the end seat 106. A plurality of rib pipes 1064 are symmetrically connected to the pipe section of the air inlet pipe 1063 located inside the end seat 106. The cold air in the cold air box 105 is evenly distributed in the plurality of rib pipes 1064 through the air inlet pipe 1063. The rib pipes 1064 arranged around the stamping support block 1061 use the cold air in the pipes to cool the lower template 107, reducing the influence of the temperature formed during stamping on the crossbeam; in Figure 5In [relevant context], there is a space for laying the air inlet pipe 1063 and its rib pipes 1064 on the lower surface of the stamping support block 1061 and the inner bottom surface of the end seat 106. On the one hand, the stamping support block 1061 provides support and positioning for the lower template 107. On the other hand, its structural design helps the cold air to cool the lower template 107, and it is an important auxiliary component in the cooling process; in Figure 6 and Figure 7 In [relevant context], an air outlet 1062 is opened on the side wall of the placement groove of the stamping support block 1061, and the port of the rib pipe 1064 is directly opposite to the air outlet 1062. In this embodiment, the air outlet 1062 provides a channel for the cold air discharged from the rib pipe 1064 to enter the inside of the stamping support block 1061. After the cold air is discharged from the rib pipe 1064, it spreads into the stamping support block 1061 through the air outlet 1062, so that the cold air can directly act on the lower template 107 to cool the lower template 107. In this embodiment: the cold air box 105 generates cold air, and the cold air enters the inside of the end seat 106 through the air inlet pipe 1063. Inside the end seat 106, the air inlet pipe 1063 evenly distributes the cold air into a plurality of symmetrically connected rib pipes 1064. The rib pipes 1064 arranged around the stamping support block 1061 have their ports directly opposite to the air outlets 1062 on the side wall of the placement groove of the stamping support block 1061. The cold air in the rib pipes 1064 enters the inside of the stamping support block 1061 through the air outlets 1062. Since the lower template 107 is placed in the stamping support block 1061, the cold air flowing in the stamping support block 1061 will take away the heat generated by the lower template 107 during the stamping process, thereby reducing the influence of the temperature formed by stamping on the cross beam. At the same time, there is a space for laying the air inlet pipe 1063 and its rib pipes 1064 on the lower surface of the stamping support block 1061 and the inner bottom surface of the end seat 106, which ensures the reasonable laying of the air inlet pipe 1063 and the rib pipes 1064 without affecting the support and positioning functions of the stamping support block 1061 for the lower template 107. The above cooling measures for the lower template 107 and the truck scale beam can effectively take away the heat generated by the die during the stamping process, reduce the die temperature, and reduce problems such as deformation and cracking of the die caused by thermal stress, thereby extending the service life of the die. Further, the cooling measures can keep the lower template 107 at an appropriate working temperature, avoid problems such as dimensional deviation of the cross beam and deterioration of the surface quality caused by too high temperature of the lower template 107, improve the dimensional accuracy and surface finish of the stamping parts. The stable die temperature helps to reduce the debugging time and scrap rate caused by the change of the die temperature, improve the production efficiency, and during the stamping process, the cross beam will generate heat due to plastic deformation. If not cooled in time, it will cause deformation of the cross beam after cooling. The cooling measures in this embodiment can quickly take away the heat of the cross beam, reduce its deformation amount, and improve the shape accuracy of the cross beam. The cooling system can quickly reduce the surface temperature of the cross beam, reduce the possibility of surface oxidation and decarburization, and improve the surface quality.

[0034] In Figure 8In it, an air duct 1052 is arranged in the cold air box 105 to construct a channel for air flow, which helps the air flow and the connection with the air inlet pipe 1063, enabling the air to smoothly transfer inside the cold air box 105. And a fan 1053 is connected to the tail of the air duct 1052 to provide power for the air flow. The end of the air inlet pipe 1063 is inserted into the front end of the air duct 1052 and is in communication with its interior. The front end of the air duct 1052 is a conical structure, which is conducive to the aggregation of air and passing through the air inlet pipe 1063. An installation platform protrudes inward from the lower surface of the middle part of the air duct 1052, so that the lower end of the outer surface of the middle part of the air duct 1052 forms an indentation. When a semiconductor refrigeration chip 1054 is fixedly installed on the upper surface of the installation platform, it is the core component for refrigeration. Utilizing the thermoelectric effect of the semiconductor, when an electric current passes through, one side cools and the other side generates heat. When the heat-generating surface of the semiconductor refrigeration chip 1054 faces downward, its heat can diffuse outward through the indentation formed at the lower end of the outer surface of the middle part of the air duct 1052, ensuring that the heat generated by the semiconductor refrigeration chip 1054 can be dissipated in time. Its refrigerating surface faces upward to cool the air in the air duct 1052. At the same time, to prevent the dissipated heat from leaking into the air duct 1052 and affecting the cold air, in this embodiment, heat dissipation holes 1051 are opened on both sides of the middle part of the cold air box 105. A sealed channel is arranged between the heat dissipation holes 1051 and the outer side surface of the installation platform of the air duct 1052 to guide the heat generated by the hot end of the semiconductor refrigeration chip 1054 to be discharged outward through the heat dissipation holes 1051. Windward slopes 1055 are arranged on both sides of the installation platform, which helps to guide the air flow towards the semiconductor refrigeration chip 1054, enabling the air to be cooled more effectively and improving the refrigeration efficiency. The fan 1053 blows the air cooled by the semiconductor refrigeration chip 1054 into the air inlet pipe 1063. To sum up: When the fan 1053 starts, the air in the air duct 1052 flows. When the air flows through the semiconductor refrigeration chip 1054 above the installation platform on the lower surface of the middle part of the air duct 1052, the semiconductor refrigeration chip 1054 uses the thermoelectric effect to refrigerate, reducing the temperature of the passing air. Among them, the windward slopes 1055 guide the air to flow better towards the semiconductor refrigeration chip 1054, improving the refrigeration efficiency. The air cooled by the semiconductor refrigeration chip 1054 is blown towards the conical structure at the front end of the air duct 1052 under the action of the fan 1053. Since the end of the air inlet pipe 1063 is inserted into the front end of the air duct 1052 and is in internal communication, the cold air is blown into the air inlet pipe 1063 and then enters the finned tube 1064. While the semiconductor refrigeration chip 1054 is refrigerating, its heat-generating surface generates heat, and this part of the heat is conducted through the sealed channel to the heat dissipation holes 1051 on both sides of the middle part of the cold air box 105, and then is discharged outward through the heat dissipation holes 1051, preventing the heat from accumulating in the cold air box 105 and ensuring that the semiconductor refrigeration chip 1054 can continuously and effectively work.

[0035] The above content is a further detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope determined by the claims submitted for the present invention.

Claims

1. A crossbeam forming mechanism for automobile manufacturing, including a base (100), on which an end seat (106) is installed, and a lower template (107) is built inside the end seat (106). It is characterized in that: The end seat (106) is of a hollow structure, and a stamping support block (1061) is centrally arranged inside the end seat (106). The lower template (107) is placed within the stamping support block (1061). A cold air box (105) is assembled on the lower surface of the end seat (106). An air inlet pipe (1063) for guiding cold air out is provided inside the cold air box (105), and the air inlet pipe (1063) penetrates through the end seat (106) and extends inside. A plurality of rib pipes (1064) are symmetrically connected to the pipe section of the air inlet pipe (1063) located inside the end seat (106). The cold air inside the cold air box (105) is evenly distributed in the plurality of rib pipes (1064) through the air inlet pipe (1063). The rib pipes (1064) arranged around the stamping support block (1061) use the cold air in the pipes to cool the lower template (107), reducing the influence of the temperature formed during stamping on the crossbeam.

2. The crossbeam forming mechanism for automobile manufacturing according to claim 1, wherein: The main body of the stamping support block (1061) is a rectangular body integrally connected to the end seat (106), and a placement groove adapted to the lower template (107) is formed on the upper surface of the rectangular body. A space for laying the air inlet pipe (1063) and its rib pipes (1064) is provided between the lower surface of the stamping support block (1061) and the inner bottom surface of the end seat (106).

3. The crossbeam forming mechanism for automobile manufacturing according to claim 2, characterized in that: Air outlet openings (1062) are formed on the side walls of the placement groove of the stamping support block (1061), and the ports of the rib pipes (1064) are aligned with the air outlet openings (1062). After the cold air is discharged from the rib pipes (1064), it spreads into the stamping support block (1061) through the air outlet openings (1062) to cool the lower template (107).

4. The crossbeam forming mechanism for automobile manufacturing according to claim 1, characterized in that: Lap ears (1071) are arranged at both ends of the upper surface of the lower template (107). When the lower template (107) is assembled in the placement groove, its lap ears (1071) lap on the upper surface of the end seat (106).

5. The crossbeam forming mechanism for automobile manufacturing according to claim 1, characterized in that: An air duct (1052) is arranged inside the cold air box (105), and a fan (1053) is connected to the tail of the air duct (1052). The front end of the air duct (1052) is of a conical structure, and the end of the air inlet pipe (1063) is inserted into the front end of the air duct (1052) and communicated with its interior.

6. The crossbeam forming mechanism for automobile manufacturing according to claim 5, characterized in that: An installation platform protrudes inward from the lower surface of the middle part of the air duct (1052). A semiconductor refrigeration sheet (1054) is fixedly installed on the upper surface of the installation platform, and the heat generating surface of the semiconductor refrigeration sheet (1054) faces downward. Windward slopes (1055) are provided on both sides of the installation platform. The fan (1053) blows the air cooled by the semiconductor refrigeration sheet (1054) into the air inlet pipe (1063).

7. The crossbeam forming mechanism for automobile manufacturing according to claim 6, characterized in that: Heat dissipation holes (1051) are formed on both sides of the middle part of the cold air box (105), and a sealed channel is provided between the heat dissipation holes (1051) and the outer side surface of the installation platform of the air duct (1052) to guide the heat generated by the hot end of the semiconductor refrigeration sheet (1054) to be discharged outward through the heat dissipation holes (1051).

8. The crossbeam forming mechanism for automobile manufacturing according to claim 1, characterized in that: On the upper surface of the base (100) and on both sides of the end seat (106), there are columns (101). A pressing plate (103) is slidably connected to the columns (101), and an upper template (104) is provided on the lower surface of the pressing plate (103).

9. The crossbeam forming mechanism for automobile manufacturing according to claim 8, characterized in that: A spring (102) is sleeved on the column (101), and the pressing plate (103) is lapped on the upper surface of the spring (102).

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