A cooling device for automobile fender stamping die

Abstract

The present invention discloses a cooling device for a stamping die of an automobile fender, which relates to the technical field of automobile fender stamping forming, and comprises a lower die base and a cooling mechanism. The cooling mechanism comprises a cooling plate and blades. When coolant is introduced, the cooling plate can be driven to rotate through the blades, and a spiral cooling channel is provided in the cooling plate, so that the cooling channel can cover the entire surface of the cooling plate during the rotation of the cooling plate, thereby enabling the cooling plate to form a cooling plate with uniform temperature distribution, thereby achieving uniform cooling of the lower die base, the lower die forming block and the fender, and during the rotation process, through the design of the buffer cavity and the annular side plate, when the cooling plate rotates, the annular side plate will rotate with the cooling plate, thereby enabling the coolant to effectively enter the cooling channel from the buffer cavity, thereby achieving uniform cooling while ensuring cooling efficiency, and improving the processing quality of the fender.

Description

Technical Field

[0001] The invention relates to the technical field of automobile fender stamping and forming, in particular to a cooling device for an automobile fender stamping die. Background Art

[0002] A car fender, also known as a wing, is an important component of the car body. It is located above the wheels and its main function is to prevent mud, water, stones, etc. from splashing onto the car body, thereby protecting the car body from damage. Metal fenders, especially steel fenders, are usually produced using a stamping process, which uses the stretching effect of a mold to form the metal sheet into the basic shape of the fender.

[0003] During the stamping process, friction and material deformation generate a large amount of heat, causing the mold temperature to rise. If the mold temperature is too high, it will not only affect the dimensional accuracy and surface quality of the stamped parts, but also accelerate the wear and aging of the mold. Therefore, the mold needs to be cooled. The existing cooling method mainly opens cooling pipes on the mold and passes coolant into the cooling pipes to cool the mold. Due to the fixed setting of the cooling pipes, this method often leads to uneven cooling. That is, the area close to the cooling pipes cools quickly, while the area far away from the cooling pipes cools slowly. This leads to uneven contraction of the fender during the cooling process, causing defects such as warping and deformation.

[0004] Therefore, it is necessary to provide a cooling device for a stamping die of an automobile fender to solve the problems raised in the above background technology. Summary of the Invention

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A cooling device for an automobile fender stamping die, comprising a lower die base, a cooling mechanism, a lower die forming block, an upper die base and an upper die forming block, wherein a lower die forming block is fixedly arranged on the lower die base, the upper die base is slidably arranged above the lower die base, an upper die forming block is fixedly arranged on the bottom of the upper die base, a positioning rod is fixedly arranged between the lower die base and the upper die base, a rotating groove is opened in the lower die base, the cooling mechanism is rotatably arranged in the rotating groove, the cooling mechanism includes a cooling plate and blades, wherein a cooling channel is spirally opened in the cooling plate along its outer side toward the inner center, a ring plate is fixedly arranged at the bottom of the cooling plate, and a plurality of blades are fixedly arranged in a circular pattern on the ring plate.

[0006] Preferably, an annular liquid inlet groove is opened in the lower mold base, the ring plate and the annular liquid inlet groove form an annular liquid inlet cavity, and the blade rotates along the annular liquid inlet cavity, and a liquid inlet channel is opened on the lower mold base along the tangential direction of the annular liquid inlet groove, and the liquid inlet channel is connected to the external cooling circulation mechanism through an infusion pipe.

[0007] Preferably, a cache cavity is provided in the lower die base, a plurality of communication holes are provided between the cache cavity and the annular liquid inlet cavity, and the communication holes are located on the side opposite to the liquid inlet channel, and an annular side plate is provided in the cache cavity for sealing and rotation.

[0008] Preferably, a liquid inlet pipe and a liquid outlet pipe are fixedly provided at the bottom of the cooling plate, the liquid inlet pipe is connected to the input end of the cooling channel, the liquid outlet pipe is connected to the output end of the cooling channel, and the liquid outlet pipe is located in the center of the cooling plate.

[0009] Preferably, the liquid inlet pipe is L-shaped, the other end of the liquid inlet pipe is fixedly connected to the annular side plate, the liquid inlet pipe connects the cache cavity with the cooling channel, and an L-shaped groove for the liquid inlet pipe to rotate is also provided in the lower mold base.

[0010] Preferably, an annular groove for the liquid outlet pipe to rotate is provided in the lower die base, and a liquid drain pipe is fixedly provided at the bottom of the lower die base, and the liquid drain pipe connects the liquid outlet pipe with an external cooling circulation mechanism.

[0011] Preferably, the cooling disc and the ring plate are both provided with sealing strips, the cooling disc is sealed and rotated along the rotating groove through the sealing strips, and the ring plate is sealed and rotated along the annular liquid inlet groove through the sealing strips.

[0012] Preferably, it further includes a control system and temperature sensors embedded in the upper mold forming block and the lower mold forming block, and the control system is used to receive temperature data information transmitted by the temperature sensor and control the cooling circulation mechanism.

[0013] Compared with the prior art, the present invention provides a cooling device for an automobile fender stamping die, which has the following beneficial effects:

[0014] The present invention arranges blades on the cooling disk so that the cooling liquid can drive the cooling disk to rotate through the blades when it is introduced, and arranges a spiral cooling channel in the cooling disk so that the cooling channel can cover the entire surface of the cooling disk during the rotation of the cooling disk, thereby enabling the cooling disk to form a cooling plate with uniform temperature distribution, thereby achieving uniform cooling of the lower mold base, the lower mold forming block and the fender, and during the rotation process, through the design of the buffer cavity and the annular side plate, when the cooling disk rotates, the annular side plate will rotate with the cooling disk, thereby enabling the coolant to effectively enter the cooling channel from the buffer cavity, thereby achieving uniform cooling while ensuring cooling efficiency and improving the processing quality of the fender. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 Schematic diagram of the three-dimensional structure of the lower die base and cooling mechanism in the present invention

[0017] Figure 3 Schematic diagram of the cross-sectional structure of the lower die base and the cooling mechanism in the present invention;

[0018] Figure 4 Schematic diagram of the internal structure of the lower die base in the present invention;

[0019] Figure 5 Schematic diagram of the structure of the cooling plate in the present invention;

[0020] Figure 6 Schematic diagram of the structure of the ring plate and blades in the present invention;

[0021] In the figure: 1. Lower die base; 11. Rotating groove; 12. Annular liquid inlet groove; 13. Liquid inlet channel; 14. Buffer chamber; 141. Connecting hole; 142. Annular side plate; 15. Annular groove; 2. Cooling mechanism; 21. Cooling plate; 211. Liquid inlet pipe; 212. Liquid outlet pipe; 22. Blade; 23. Cooling channel; 24. Ring plate; 3. Lower die forming block; 4. Upper die base; 5. Upper die forming block; 6. Liquid infusion pipe; 7. Liquid discharge pipe. DETAILED DESCRIPTION

[0022] See also Figures 1 to 6 In an embodiment of the present invention, a cooling device for a stamping die of an automobile fender comprises a lower die base 1, a cooling mechanism 2, a lower die forming block 3, an upper die base 4 and an upper die forming block 5, wherein the lower die base 1 is fixedly provided with the lower die forming block 3, the upper die base 4 is slidably provided above the lower die base 1, the upper die forming block 5 is fixedly provided at the bottom of the upper die base 4, a positioning rod is fixedly provided between the lower die base 1 and the upper die base 4, a rotating groove 11 is provided in the lower die base 1, the cooling mechanism 2 is rotatably provided in the rotating groove 11, the cooling mechanism 2 comprises a cooling plate 21 and blades 22, wherein a cooling channel 23 is spirally provided in the cooling plate 21 along its outer side toward the inner center, a ring plate 24 is fixedly provided at the bottom of the cooling plate 21, and a plurality of blades 22 are fixedly provided on the ring plate 24 in a circumferential manner;

[0023] Specifically, the cooling mechanism 2 can also be provided in the upper die base 4 to cool the upper die forming block 5, thereby improving the cooling efficiency of the entire die and the fender. In addition, the positioning rod can ensure that the upper die forming block 5 will not be misaligned during the process of pressing the lower die forming block 3.

[0024] An annular liquid inlet groove 12 is provided in the lower die base 1, and an annular liquid inlet cavity is formed by the ring plate 24 and the annular liquid inlet groove 12, and the blade 22 rotates along the annular liquid inlet cavity. A liquid inlet channel 13 is provided on the lower die base 1 along the tangential direction of the annular liquid inlet groove 12, and the liquid inlet channel 13 is connected to the external cooling circulation mechanism through the liquid infusion pipe 6;

[0025] A buffer cavity 14 is formed in the lower die base 1. A plurality of communication holes 141 are formed between the buffer cavity 14 and the annular liquid inlet cavity. The communication holes 141 are located on a side opposite to the liquid inlet channel 13. An annular side plate 142 is provided in a sealed and rotatable manner in the buffer cavity 14.

[0026] A liquid inlet pipe 211 and a liquid outlet pipe 212 are fixedly provided at the bottom of the cooling plate 21. The liquid inlet pipe 211 is connected to the input end of the cooling channel 23, and the liquid outlet pipe 212 is connected to the output end of the cooling channel 23. The liquid outlet pipe 212 is located in the center of the cooling plate 21.

[0027] The lower die base 1 is provided with an annular groove 15 for the liquid outlet pipe 212 to rotate. A liquid discharge pipe 7 is fixedly provided at the bottom of the lower die base 1. The liquid discharge pipe 7 connects the liquid outlet pipe 212 with an external cooling circulation mechanism.

[0028] In particular, the liquid outlet pipe 212 is positioned at the center of the cooling disc 21 so that when the cooling disc 21 rotates, the liquid outlet pipe 212 can also rotate along the annular groove 15. That is, during the rotation of the cooling disc 21, the circulation of the coolant is not affected.

[0029] The liquid inlet pipe 211 is L-shaped, and the other end of the liquid inlet pipe 211 is fixedly connected to the annular side plate 142. The liquid inlet pipe 211 connects the buffer cavity 14 with the cooling channel 23. The lower mold base 1 is also provided with an L-shaped groove for the liquid inlet pipe 211 to rotate. In addition, a reinforcing plate can be provided between the cooling plate 21 and the annular side plate 142 to ensure that the cooling plate 21 can effectively drive the annular side plate 142 to rotate along the buffer cavity 14 and prevent the liquid inlet pipe 211 from being damaged during long-term rotation.

[0030] Temperature sensors are embedded in the upper mold forming block 5 and the lower mold forming block 3 . The temperature sensors are connected to an external control system. The control system is used to receive temperature data information transmitted by the temperature sensors and control the cooling circulation mechanism.

[0031] During implementation, the metal sheet is placed between the lower die forming block 3 and the upper die forming block 5, and the metal sheet is punched into a leaf plate by the upper die forming block 5 punching the lower die forming block 3, and then the external cooling circulation mechanism is used to pass coolant into the cooling mechanism 2 to cool the lower die base 1 and the upper die base 4. When the coolant passes into the annular liquid inlet cavity from the liquid inlet channel 13, the blade 22 will drive the ring plate 24 and the cooling disk 21 to rotate under the action of the coolant, and then when the coolant flows along the annular hydraulic cavity to the connecting hole 141, the coolant enters the buffer cavity 14 from the connecting hole 141, and after filling the buffer cavity 14, enters the cooling channel 23 through the liquid inlet pipe 211, and then the coolant spirally flows along the cooling channel 23 and returns to the external cooling circulation mechanism through the liquid outlet pipe 212, so as to circulate and cool the lower die base 1. In this process, when the blade 22 When driving the cooling disk 21 to rotate, the liquid inlet pipe 211 can also drive the annular side plate 142 to rotate along the buffer cavity 14, so that the process of the buffer cavity 14 inputting coolant to the cooling channel 23 is not affected by the rotation of the cooling disk 21, and the rotation of the cooling disk 21 further causes the cooling channel 23 to rotate together, so that the position of the cooling channel 23 is not fixed, and the cooling channel 23 can cover the lower mold base 1 during the rotation process, that is, the cooling disk 21 can be regarded as a cooling plate with uniform temperature distribution, so that the lower mold base 1 and the lower mold forming block 3 can be evenly cooled, thereby ensuring that the fender shrinks evenly during the cooling process, effectively improving the processing quality of the fender, in addition, during the cooling process, the temperature in the upper mold forming block 5 and the lower mold forming block 3 is monitored by a temperature sensor to adjust the temperature of the coolant, further ensuring the processing quality of the automobile fender while ensuring the cooling efficiency.

[0032] In this embodiment, sealing strips are provided on the cooling disc 21 and the ring plate 24 . The cooling disc 21 rotates along the rotating groove 11 in a sealed manner via the sealing strips, and the ring plate 24 rotates along the annular liquid inlet groove 12 in a sealed manner via the sealing strips.

[0033] That is to say, the annular liquid inlet cavity is a closed space and has no other outlet except for being connected to the buffer cavity 14. Therefore, after the coolant enters the annular liquid inlet cavity, the coolant will not leak during the rotation of the cooling disk 21, that is, the coolant will all enter the cooling channel 23 and return to the cooling circulation mechanism after the cooling cycle.

[0034] To sum up, when the present invention is implemented, blades 22 are provided on the cooling disk 21, so that the cooling liquid can drive the cooling disk 21 to rotate through the blades 22 when it is introduced, and a spiral cooling channel 23 is provided in the cooling disk 21, so that the cooling channel 23 can cover the entire surface of the cooling disk 21 during the rotation of the cooling disk 21, thereby enabling the cooling disk 21 to form a cooling plate with uniform temperature distribution, thereby achieving uniform cooling of the lower mold base 1, the lower mold forming block 3 and the fender, and during the rotation process, through the design of the buffer cavity 14 and the annular side plate 142, when the cooling disk 21 rotates, the annular side plate 142 will rotate with the cooling disk 21, thereby enabling the coolant to effectively enter the cooling channel 23 from the buffer cavity 14, thereby achieving uniform cooling while ensuring cooling efficiency and improving the processing quality of the fender.

[0035] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cooling device for a stamping die of an automobile fender, characterized in that: include: A lower die base (1), a cooling mechanism (2), a lower die forming block (3), an upper die base (4) and an upper die forming block (5), wherein the lower die base (1) is fixedly provided with a lower die forming block (3), the upper die base (4) is slidably provided above the lower die base (1), the bottom of the upper die base (4) is fixedly provided with an upper die forming block (5), a positioning rod is fixedly provided between the lower die base (1) and the upper die base (4), a rotating groove (11) is provided in the lower die base (1), the cooling mechanism (2) is rotatably provided in the rotating groove (11), the cooling mechanism (2) comprises a cooling plate (21) and blades (22), wherein a cooling channel (23) is spirally provided in the cooling plate (21) along its outer side toward the inner center, a ring plate (24) is fixedly provided at the bottom of the cooling plate (21), and a plurality of blades (22) are fixedly provided on the ring plate (24) in a circumferential manner; An annular liquid inlet groove (12) is provided in the lower die base (1), an annular liquid inlet cavity is formed between the ring plate (24) and the annular liquid inlet groove (12), and the blade (22) rotates along the annular liquid inlet cavity. A liquid inlet channel (13) is provided on the lower die base (1) along the tangential direction of the annular liquid inlet groove (12), and the liquid inlet channel (13) is connected to an external cooling circulation mechanism through a liquid infusion pipe (6); A buffer cavity (14) is provided in the lower die base (1), a plurality of communication holes (141) are provided between the buffer cavity (14) and the annular liquid inlet cavity, and the communication holes (141) are located on a side opposite to the liquid inlet channel (13), and an annular side plate (142) is provided in the buffer cavity (14) for sealing and rotation; A liquid inlet pipe (211) and a liquid outlet pipe (212) are fixedly provided at the bottom of the cooling plate (21), the liquid inlet pipe (211) is communicated with the input end of the cooling channel (23), the liquid outlet pipe (212) is communicated with the output end of the cooling channel (23), and the liquid outlet pipe (212) is located at the center of the cooling plate (21); The liquid inlet pipe (211) is L-shaped, and the other end of the liquid inlet pipe (211) is fixedly connected to the annular side plate (142). The liquid inlet pipe (211) connects the buffer cavity (14) with the cooling channel (23), and an L-shaped groove for the liquid inlet pipe (211) to rotate is also provided in the lower mold base (1).

2. The cooling device for a stamping die for an automobile fender according to claim 1, characterized in that: An annular groove (15) for the liquid outlet pipe (212) to rotate is provided in the lower die base (1), and a liquid discharge pipe (7) is fixedly provided at the bottom of the lower die base (1), and the liquid discharge pipe (7) connects the liquid outlet pipe (212) with an external cooling circulation mechanism.

3. The cooling device for a stamping die for an automobile fender according to claim 1, characterized in that: The cooling disc (21) and the ring plate (24) are both provided with sealing strips, and the cooling disc (21) is sealed and rotated along the rotating groove (11) through the sealing strips, and the ring plate (24) is sealed and rotated along the annular liquid inlet groove (12) through the sealing strips.

4. The cooling device for a stamping die for an automobile fender according to claim 1, characterized in that: It also includes a control system and temperature sensors embedded in the upper mold forming block (5) and the lower mold forming block (3), wherein the control system is used to receive temperature data information transmitted by the temperature sensors and control the cooling circulation mechanism.

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