Scratch-free metal stamping die for automobile battery shell

Abstract

The invention relates to the technical field of shell punch forming, in particular to a scratch-free metal stamping die for an automobile battery shell, which comprises a stamping die, and the stamping die comprises a lower die bottom plate, a lower die, an upper die fixing plate, an upper die and a guide column, a blowing mechanism used for blowing the surface of the lower die is arranged between the lower die and the upper die, the whole blowing mechanism is arranged on the guide columns in a sliding mode, and two lifting assemblies used for changing the set height of the blowing mechanism are arranged on the lower die bottom plate. The purging mechanism is composed of a purging assembly and a recycling assembly used for recycling waste gas obtained after purging. The invention provides a method.

Description

Technical Field

[0001] The invention relates to the technical field of shell stamping and forming, in particular to a scratch-free metal stamping die for a car battery shell. Background Art

[0002] Aluminum alloy is widely used in automobile battery shells. Its lightweight, corrosion resistance, thermal conductivity and processing advantages meet the core requirements of new energy vehicles for endurance, safety and cost. The upper and lower covers of automobile battery shells are generally produced by one-piece stamping. This method can eliminate the risk of traditional weld leakage, reduce complexity and improve sealing. However, the upper cover plate made of aluminum alloy is prone to form aluminum chips during stamping. The reason is that during stamping, the die edge contacts the aluminum plate, and the shearing action causes partial fracture of the aluminum material, forming micron-level debris (size 10-100μm). At the same time, the aluminum material has high ductility, and the rebound after stamping causes the debris to be retained in the die gap. The aluminum chips adhered to the die are pressed into the surface of the aluminum plate during the next stamping, forming grooves or protrusions, thereby causing stamping scratches on the outer surface of the upper cover plate. In order to improve the surface quality of the upper cover plate and reduce the generation of scratches, the existing technology generally improves the production quality by blowing the surface of the stamping die with compressed air. In actual operation, it is necessary to manually blow the surface of the stamping die. This processing method is simple and quick to operate for smaller molds, but it has high labor intensity. For this reason, a scratch-free metal stamping die for automotive battery housing is proposed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a scratch-free metal stamping die for an automobile battery housing, which solves the technical problem of the inconvenience of manually cleaning the debris remaining on the surface of the die.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a scratch-free metal stamping die for automobile battery casings, comprising a stamping die, wherein the stamping die comprises a lower die bottom plate, a lower die, an upper die fixing plate, an upper die and a guide column, a purge mechanism for purging the surface of the lower die is provided between the lower die and the upper die, and the entire purge mechanism is slidably set on the guide column, and two lifting assemblies for changing the setting height of the purge mechanism are provided on the lower die bottom plate; the purge mechanism is composed of a purge assembly and a recovery assembly for recovering the exhaust gas after purging.

[0005] Preferably, the purge assembly comprises a sliding member slidably arranged on a guide column, and a support plate is provided between two sliding members on the same side; A purge shell is provided between the two support plates, an air intake shell is provided on both sides of the purge shell, a guide piece is provided on the air intake shell, an L-shaped limit strip used in conjunction with the guide piece is provided on the support plate, and a moving module for driving the purge shell to move between the two support plates is also provided on the air intake shell; A hollow rotating shaft is rotatably provided in the purge shell, and an air guide channel is provided inside the hollow rotating shaft; a plurality of air inlet holes are provided in the hollow rotating shaft in the air inlet shell, and the air guide channel is interconnected with the interior of the air inlet shell through the air inlet holes; a compressed gas inlet pipe is connected to the air inlet shell, and a plurality of air outlet holes are provided in the hollow rotating shaft in the purge shell; an adjusting component for adjusting the intensity of the purge gas is provided in the purge shell.

[0006] Preferably, the hollow rotating shaft is further provided with two driven gears, and the support plate is provided with a driving rack used in conjunction with the driven gears.

[0007] Preferably, the adjustment assembly comprises two sliding shells slidably arranged on the hollow rotating shaft and a driving shell arranged on the purge shell, the driving shell is provided with a servo motor, the output end of the servo motor is provided with a worm in the driving shell, a rotating shaft is rotatably arranged in the driving shell, a worm wheel is arranged on the rotating shaft, the worm and the worm wheel are meshed with each other, and the rotating shaft is provided with a driving gear in the purge shell; The sliding shell is provided with racks, both racks are meshed with the driving gear, and the two racks are arranged in a staggered manner.

[0008] Preferably, the mobile module comprises an L-shaped mounting plate arranged on the air inlet shell, a driving motor is arranged on the L-shaped mounting plate, a driving member is arranged at the output end of the driving motor, and a plurality of gear blocks used in conjunction with the driving member are arranged on the support plate.

[0009] Preferably, the recovery component comprises a recovery shell disposed between two support plates, and moving parts for sliding on the support plates are disposed on both sides of the recovery shell, and a recovery pipe is also connected to the recovery shell; The recovery shell is provided with a translation assembly for adjusting the relative position of the recovery shell and the purge shell, and the translation assembly includes two inner shells arranged in the recovery shell, a reciprocating screw is rotatably arranged in the inner shell, and the two reciprocating screws are fixedly connected by a connecting shaft; The reciprocating screw is provided with a threaded seat, and the threaded seat is provided with a convex rod. The recovery shell and the inner shell are both provided with a rectangular through groove for facilitating the sliding of the convex rod. A driving rod is rotatably provided on the convex rod, and the end of the driving rod is rotatably provided with a fixed convex block provided on the purge shell. The translation assembly also includes a power shell arranged on one side of the inner shell, the connecting shaft is provided with a plurality of fan blades inside the power shell, an exhaust pipe is connected to the power shell, and the end of the exhaust pipe is connected to the recovery pipe, an air inlet is provided below the power shell, and a filter is provided at the air inlet.

[0010] Preferably, the lifting assembly includes a guide shell arranged on the bottom plate of the lower mold, a pushing member is slidably provided in the guide shell, an electric telescopic rod is also provided on the guide shell, and the telescopic end of the electric telescopic rod is fixedly arranged on the pushing member, a push rod is provided on the pushing member, two extrusion rods are rotatably provided on the push rod, and the end of the extrusion rod is rotatably arranged with the support plate on the same side.

[0011] Preferably, the angle between the air outlet angle of the purge shell and the vertical direction is between 30° and 45°, and the air inlet angle of the recovery shell is also inclined.

[0012] By means of the above technical solution, the present invention provides a scratch-free metal stamping die for a car battery housing, which has at least the following beneficial effects: 1. The present invention proposes to set a purging mechanism between the lower mold and the upper mold. The purging component and the recovery component in the purging mechanism cooperate with each other to solve the problem of time-consuming and labor-intensive manual cleaning of large-size molds. Secondly, the recovery component collects the waste gas after cleaning in time, effectively reduces the backflow of scattered debris, and prevents the debris from secondary contamination of the mold surface.

[0013] 2. The present invention blows out compressed air by tilting the purge shell downward, and the mobile module drives the lateral movement of the purge shell 303, so as to clean the upper surface of the lower mold, that is, to remove the aluminum debris attached to the upper surface of the lower mold; the whole process does not require human intervention, and the length of the purge shell is greater than the width of the lower mold. The lateral movement of the purge shell can clean the upper surface of the lower mold without dead angles, which is more detailed than the traditional manual "S" shape waving of the cleaning gun, effectively improves the cleaning effect, and reduces the probability of scratches on the automobile battery casing by debris when stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the stamping die of the present invention; Figure 2 It is a schematic diagram of the overall structure of the lifting assembly of the present invention; Figure 3 This is a schematic diagram of the internal structure of the guide housing of the present invention; Figure 4This is a schematic diagram of the structure after the pusher of the present invention moves; Figure 5 It is a schematic diagram of the overall structure of the purge mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the purge assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the recycling component of the present invention; Figure 8 This is a schematic diagram of the internal structure of the purge shell of the present invention; Fig. 9 This is a schematic diagram of the structure of the regulating component of the present invention; Fig.10 It is a schematic diagram of the structure of the worm and the worm wheel of the present invention; Fig.11 This is a schematic diagram of the internal structure of the recovery shell of the present invention; Fig.12 It is a schematic diagram of the structure of the translation assembly of the present invention; Fig.13 This is a schematic diagram of the arrangement position of the purge shell and the recovery shell of the present invention; Fig.14 It is a schematic diagram of the sliding shell structure of the present invention.

[0015] In the figure: 1, stamping die; 101, lower die bottom plate; 102, lower die; 103, upper die fixing plate; 104, upper die; 105, guide column; 2. Lifting assembly; 201. Guide shell; 202. Pushing member; 203. Push rod; 204. Extrusion rod; 205. Electric telescopic rod; 3. Purge assembly; 301. Sliding member; 302. Support plate; 3021. L-shaped limit strip; 303. Purge shell; 304. Air inlet shell; 3041. Compressed gas inlet pipe; 305. Guide member; 306. Hollow shaft; 3061. Driven gear; 307. Sliding shell; 3072. Rack; 308. Drive shell; 309. Servo motor; 310. Worm; 311. Worm wheel; 312. Drive gear; 313. L-shaped mounting plate; 314. Drive motor; 315. Drive member; 4. Recovery assembly; 401. Recovery shell; 402. Moving part; 403. Recovery tube; 404. Inner shell; 405. Reciprocating screw; 406. Threaded seat; 407. Driving rod; 408. Power shell; 409. Fan blades. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0017] Please refer to Figure 1-Figure 14 A scratch-free metal stamping die for a car battery shell includes a stamping die 1, the stamping die 1 includes a lower die bottom plate 101, a lower die 102, an upper die fixing plate 103, an upper die 104 and a guide column 105, a purge mechanism for purging the surface of the lower die 102 is provided between the lower die 102 and the upper die 104, and the entire purge mechanism is slidably arranged on the guide column 105, and two lifting components 2 for changing the setting height of the purge mechanism are provided on the lower die bottom plate 101; The purging mechanism is composed of a purging component 3 and a recovery component 4 for recovering the waste gas after purging.

[0018] Traditional car battery shells are mostly composed of bottom guard plates, bottom plates with cooling systems, battery boxes, and upper covers. In order to reduce the overall weight of the battery shell, the current material of the battery shell is mostly aluminum alloy. Aluminum alloy shells are favored for their excellent properties of heat dissipation and light weight. At the same time, aluminum is a lightweight metal with a relatively low density. Therefore, the use of aluminum alloy can effectively reduce the weight of the vehicle. Secondly, aluminum alloy has good corrosion resistance. Cars will face various harsh environments during use, such as moisture, rain, salt spray, etc. Ordinary iron is easily corroded, causing damage to the shell or even failure; aluminum alloy, due to its own oxide film, can effectively prevent corrosion, thereby extending the service life of the car battery and improving the reliability and safety of the car. However, aluminum alloy upper covers are prone to form aluminum chips during stamping. The specific reasons are as follows: during stamping, the die cutting edge contacts the aluminum plate, and the shearing action causes partial fracture of the aluminum material, forming micron-sized debris (size 10-100μm). At the same time, aluminum has high ductility, and the rebound after stamping causes the debris to remain in the die gap. The aluminum chips adhered to the die are pressed into the surface of the aluminum plate during the next stamping, forming grooves or protrusions, thereby causing stamping scratches on the outer surface of the upper cover. In order to improve the surface quality of the upper cover and reduce the generation of scratches, the prior art generally improves the production quality by blowing the surface of the stamping die with compressed air. In actual operation, the surface of the stamping die needs to be manually blown. This treatment method is simple and quick for smaller molds, but for the stamping die for producing the upper cover of the battery casing, there are at least two difficulties in manually cleaning the surface of the stamping die: First, the area of ​​the mold surface that needs to be cleaned is large, resulting in high labor intensity. The size of the traditional stamping die for the upper cover is mostly between 2-3 square meters, and it is difficult to clean the surface of the stamping die manually. When using a spray gun to purge the mold surface, it is necessary to swing the gun head back and forth, and try to make the gun head move in an "S" shape, which can improve the surface cleaning quality, but this operation will greatly increase the labor intensity of the operator, and it cannot guarantee that the mold surface can be cleaned after purging; secondly, there are punching holes, punching grooves, and forming grooves of varying depths on the mold surface, and some debris will remain after manual cleaning; because when purging a larger mold, the exhaust gas after purging will spread to the surroundings, and the mold The surface area is large, and some debris will fall back to the upper surface of the mold when the debris moves above the mold, causing cleaning defects. Based on the above two points, the invention proposes to set a purging mechanism between the lower mold 102 and the upper mold 104. The purging component 3 and the recovery component 4 in the purging mechanism cooperate with each other, firstly, the problem of time-consuming and labor-intensive manual cleaning of large-size molds is solved, and secondly, the recovery component 4 is used to collect the waste gas after cleaning in time, effectively reducing the backflow of scattered debris and preventing the debris from secondary contamination of the mold surface. Example

[0019] Please refer to Figure 2-Figure 10 This embodiment is basically the same as the first embodiment. This embodiment is made on the basis of the first embodiment and has the same beneficial effects as the first embodiment. The same parts can be referred to each other and will not be described in detail here.

[0020] As a further technical solution of this embodiment, the purge assembly 3 includes a sliding member 301 slidably disposed on the guide column 105, and a support plate 302 is disposed between two sliding members 301 on the same side; A purge shell 303 is provided between the two support plates 302, and an air inlet shell 304 is provided on both sides of the purge shell 303. A guide member 305 is provided on the air inlet shell 304, and an L-shaped limit strip 3021 used in conjunction with the guide member 305 is provided on the support plate 302. A moving module for driving the purge shell 303 to move between the two support plates 302 is also provided on the air inlet shell 304; A hollow rotating shaft 306 is rotatably provided in the purge shell 303, and an air guide channel is provided inside the hollow rotating shaft 306; a plurality of air inlet holes are provided in the hollow rotating shaft 306 located in the air inlet shell 304, and the air guide channel is interconnected with the interior of the air inlet shell 304 through the air inlet holes; a compressed gas inlet pipe 3041 is connected to the air inlet shell 304, and a plurality of air outlet holes are provided in the hollow rotating shaft 306 in the purge shell 303; an adjusting component for adjusting the intensity of the purge gas is provided in the purge shell 303.

[0021] Furthermore, two driven gears 3061 are provided on the hollow rotating shaft 306 , and a driving rack used in conjunction with the driven gears 3061 is provided on the supporting plate 302 .

[0022] Further, the adjustment assembly includes two sliding shells 307 slidably arranged on the hollow rotating shaft 306 and a driving shell 308 arranged on the purge shell 303, a servo motor 309 is arranged on the driving shell 308, a worm 310 is arranged in the driving shell 308 at the output end of the servo motor 309, a rotating shaft is rotatably arranged in the driving shell 308, a worm gear 311 is arranged on the rotating shaft, the worm 310 and the worm gear 311 are meshed with each other, and a driving gear 312 is arranged in the purge shell 303 on the rotating shaft; The sliding housing 307 is provided with racks 3072 . The two racks 3072 are meshed with the driving gear 312 , and the two racks 3072 are arranged in a staggered manner.

[0023] Furthermore, the mobile module includes an L-shaped mounting plate 313 arranged on the air inlet shell 304, a driving motor 314 is arranged on the L-shaped mounting plate 313, a driving member 315 is arranged at the output end of the driving motor 314, and a plurality of gear blocks used in conjunction with the driving member 315 are arranged on the support plate 302.

[0024] Furthermore, the included angle between the air outlet angle of the purge shell 303 and the vertical direction is between 30° and 45°, and the air inlet angle of the recovery shell 401 is also inclined.

[0025] As can be seen from the above, the function of the purge assembly 3 is to blow out compressed air through the purge shell 303 tilted downward, and the moving module drives the purge shell 303 to move horizontally, so as to clean the upper surface of the lower mold 102, that is, to remove the aluminum debris attached to the upper surface of the lower mold 102; the whole process does not require manual participation, the length of the purge shell 303 is greater than the width of the lower mold 102, and the lateral movement of the purge shell 303 can clean the upper surface of the lower mold 102 without dead angles, which is more detailed than the traditional manual "S" shape waving of the cleaning gun, effectively improving the cleaning effect, and reducing the probability of scratches on the automobile battery shell caused by debris when stamping; The specific process of compressed gas entering the purge shell 303 and being discharged from the inclined air outlet below the purge shell 303 is as follows: the external air source passes compressed gas into the air inlet shell 304 through the compressed gas inlet pipe 3041, and the compressed gas enters the air inlet shell 304 and then enters the hollow shaft 306 through a plurality of air inlet holes. Since the hollow shaft 306 is provided with a plurality of air outlet holes in the purge shell 303, the compressed gas enters the air guide channel of the hollow shaft 306 and is discharged from the air outlet holes into the purge shell 303. Finally, the compressed air is discharged from the air outlet below the purge shell 303, and finally the upper surface of the lower mold 102 is cleaned by the compressed gas in an inclined manner. During the compressed gas purging process, since the inclined air outlet below the purge shell 303 has a larger diameter, the speed at which the compressed air is discharged will be appropriately reduced. The compressed air at this wind speed is sufficient for the smooth surface of the lower mold 102, but for the punching holes, punching grooves, and forming grooves on the lower mold 102, the debris inside them cannot be effectively removed by the compressed air at this wind speed. For this reason, an adjustment component is added in the purge shell 303. The distance between the two sliding shells 307 sliding on the hollow shaft 306 can be adjusted by adjusting the assembly. Since the hollow shaft 306 is provided with an air outlet, and the sliding shell 307 is provided with a temporary storage cavity, and the sliding shell 307 is also provided with an air outlet at an angle below the sliding shell 307, the air outlet provided below the sliding shell 307 has a small diameter. When the compressed air is discharged from the air outlet of the sliding shell 307, a certain wind speed can be guaranteed, thereby separating the debris in the stamping groove and the molding groove, and further effectively cleaning the stamping groove and the molding groove; and according to the actual distribution of the stamping holes, stamping grooves, and molding grooves on the lower mold 102, it is also possible to The distance between the two sliding shells 307 is adjusted, so as to clean the dense stamping grooves and forming grooves in a targeted manner; the specific working principle of the adjustment component is: the servo motor 309 works to drive the worm 310 to rotate, and the worm 310 can drive the worm wheel 311 to rotate after the rotation of the worm 310, and further drive the driving gear 312 coaxial therewith to rotate. Since the two racks 3072 are meshed with the driving gear 312, and the two racks 3072 are staggered, the servo motor 309 can adjust the distance between the two sliding shells 307 after working, so as to blow the mold surfaces of different depths in a targeted manner; The power source for the movement of the purge shell 303 in the purge assembly 3 above the lower mold 102 is provided by a moving module. The specific working principle of the moving module is: the driving motor 314 is started, and then the driving member 315 set at its output end can be driven to rotate. When the driving member 315 rotates, it cooperates with the gear block set on the support plate 302, thereby realizing the movement of the entire purge shell 303 between the two support plates 302. Example

[0026] Please refer to Figure 7-Figure 13 This embodiment is basically the same as the first embodiment. This embodiment is made on the basis of the first embodiment and has the same beneficial effects as the first embodiment. The same parts can be referred to each other and will not be described in detail here.

[0027] As a further technical solution of this embodiment, the recovery component 4 includes a recovery shell 401 disposed between two support plates 302, and moving parts 402 for sliding on the support plates 302 are provided on both sides of the recovery shell 401, and a recovery pipe 403 is also connected to the recovery shell 401; The recovery shell 401 is provided with a translation assembly for adjusting the relative position between the recovery shell 401 and the purge shell 303. The translation assembly includes two inner shells 404 arranged in the recovery shell 401. A reciprocating screw 405 is rotatably arranged in the inner shell 404. The two reciprocating screws 405 are fixedly connected by a connecting shaft. A threaded seat 406 is provided on the reciprocating screw 405, and a convex rod is provided on the threaded seat 406. A rectangular through groove for the convex rod to slide is provided on the recovery shell 401 and the inner shell 404. A driving rod 407 is rotatably provided on the convex rod, and the end of the driving rod 407 is rotatably provided with a fixed convex block provided on the purge shell 303. The translation assembly also includes a power shell 408 arranged on one side of the inner shell 404, and a connecting shaft is provided with a plurality of fan blades 409 inside the power shell 408. An exhaust pipe is connected to the power shell 408, and the end of the exhaust pipe is connected to the recovery pipe 403. An air inlet is provided below the power shell 408, and a filter is provided at the air inlet.

[0028] As can be seen from the above, the function of the recovery component 4 is to: recover the purge gas of the purge shell 303 to reduce the possibility of debris in the escaped gas falling back into the mold; The flow direction of the gas recovery in the recovery shell 401 is as follows: the end of the recovery pipe 403 is connected to a vacuum pump, and the vacuum pump works to extract the gas in the recovery shell 401. Since the recovery port below the recovery shell 401 is inclined, and the air outlet of the purge shell 303 is also inclined (such as Fig.13 As shown in FIG. 3 ), the gas flow direction of the entire purge mechanism is obtained as follows: after the compressed air blown out of the purge shell 303 impacts the mold surface, it drives the debris or particles on the mold surface to move toward the forward direction of the purge shell 303, and the recovery shell 401 is arranged in front of the purge shell 303, so the purge exhaust gas can be recovered by the recovery shell 401, thereby removing the scattered aluminum debris; In order to increase the absorption rate of the waste gas by the recovery shell 401, the relative distance between the recovery shell 401 and the purge shell 303 can be adjusted, that is, the relative position between the two can be changed by translating the components; The working principle of the translation assembly is as follows: since the end of the exhaust pipe is connected to the recovery pipe 403, negative pressure will be formed in the exhaust pipe, and since the power shell 408 is connected to the exhaust pipe, the power shell 408 will absorb the exhaust gas in the recovery shell 401, and the exhaust gas passing through the power shell 408 will push the multiple fan blades 409 arranged inside it, thereby driving the connecting shaft to rotate. Since the two reciprocating screws 405 are fixedly connected by the connecting shaft, when the exhaust pipe power shell 408 is evacuated, the two reciprocating screws 405 will be driven. The reciprocating screw 405 rotates, and the rotation of the reciprocating screw 405 drives the threaded seat 406 provided on the reciprocating screw 405 to move back and forth, and further drives the driving rod 407 provided on the threaded seat 406 to move. During the reciprocating movement of the threaded seat 406, the relative distance between the recovery shell 401 and the purge shell 303 is expanded and reduced. This arrangement can expand the actual recovery range of the recovery shell 401, thereby increasing the recovery range of the scattered aluminum debris and increasing the purge effect of the purge mechanism. Example

[0029] Please refer to Figure 1-Figure 5 This embodiment is basically the same as the first embodiment. This embodiment is made on the basis of the first embodiment and has the same beneficial effects as the first embodiment. The same parts can be referred to each other and will not be described in detail here.

[0030] As a further technical solution of this embodiment, the lifting assembly 2 includes a guide shell 201 arranged on the lower mold bottom plate 101, and a pushing member 202 is slidably provided in the guide shell 201. An electric telescopic rod 205 is also provided on the guide shell 201, and the telescopic end of the electric telescopic rod 205 is fixedly set to the pushing member 202. A push rod 203 is provided on the pushing member 202, and two extrusion rods 204 are rotatably provided on the push rod 203, and the end of the extrusion rod 204 is rotatably set to the support plate 302 on the same side.

[0031] As can be seen from the above, the lifting assembly 2 is set to adjust the overall setting height of the purge mechanism, so that the purge mechanism will not interfere with the forming of the battery shell during stamping. After the stamping is completed, the lifting assembly 2 raises the height of the purge mechanism so that the purge shell 303 rises to a suitable purge height, and then moves horizontally to clean the mold; The working principle of the lifting assembly 2 is as follows: the electric telescopic rod 205 works, thereby retracting the telescopic end of the electric telescopic rod 205, and the telescopic end of the electric telescopic rod 205 is fixedly arranged with the pushing member 202, thereby causing the pushing member 202 and the push rod 203 to move toward one side of the moving telescopic rod 205, further driving the squeezing rod 204 to rotate in the vertical plane, that is, pushing the support plate 302 to move upward, so that the entire purge mechanism rises to a suitable height, thereby performing purge cleaning; When the purge mechanism completes its work, the electric telescopic rod 205 works, thereby causing the telescopic end of the electric telescopic rod 205 to be retracted and extended, further causing the entire purge mechanism to drop to a suitable height. At this time, the purge shell 303 is moved to the initial position through the moving module, that is, the purge shell 303 is moved to one side of the mold. At this time, the position of the purge shell 303 will not affect the normal operation of the upper and lower molds.

[0032] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the above embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scratch-free metal stamping die for a car battery housing, comprising a stamping die (1), wherein the stamping die (1) comprises a lower die bottom plate (101), a lower die (102), an upper die fixing plate (103), an upper die (104) and a guide column (105), characterized in that: A purge mechanism for purging the surface of the lower mold (102) is provided between the lower mold (102) and the upper mold (104), and the entire purge mechanism is slidably arranged on the guide column (105), and two lifting assemblies (2) for changing the setting height of the purge mechanism are provided on the lower mold bottom plate (101); The purging mechanism is composed of a purging component (3) and a recovery component (4) for recovering the waste gas after purging.

2. A scratch-free metal stamping die for automobile battery housing according to claim 1, characterized in that: The purge assembly (3) comprises a sliding member (301) slidably arranged on a guide column (105), and a support plate (302) is provided between two sliding members (301) on the same side; A purge shell (303) is provided between the two support plates (302); an air intake shell (304) is provided on both sides of the purge shell (303); a guide piece (305) is provided on the air intake shell (304); an L-shaped limit strip (3021) used in conjunction with the guide piece (305) is provided on the support plate (302); and a moving module for driving the purge shell (303) to move between the two support plates (302) is also provided on the air intake shell (304); A hollow rotating shaft (306) is rotatably provided in the purge shell (303), and an air guide channel is provided inside the hollow rotating shaft (306); a plurality of air inlet holes are provided in the hollow rotating shaft (306) located in the air inlet shell (304), and the air guide channel is interconnected with the interior of the air inlet shell (304) through the air inlet holes; a compressed gas inlet pipe (3041) is provided on the air inlet shell (304), and a plurality of air outlet holes are provided in the hollow rotating shaft (306) in the purge shell (303); and an adjustment component for adjusting the intensity of the purge gas is provided in the purge shell (303).

3. A scratch-free metal stamping die for automobile battery housing according to claim 2, characterized in that: Two driven gears (3061) are also provided on the hollow rotating shaft (306), and a driving rack used in conjunction with the driven gears (3061) is provided on the support plate (302).

4. A scratch-free metal stamping die for automobile battery housing according to claim 2, characterized in that: The adjustment assembly comprises two sliding shells (307) slidably arranged on the hollow rotating shaft (306) and a driving shell (308) arranged on the purge shell (303); a servo motor (309) is arranged on the driving shell (308); a worm (310) is arranged at the output end of the servo motor (309) in the driving shell (308); a rotating shaft is rotatably arranged in the driving shell (308); a worm wheel (311) is arranged on the rotating shaft; the worm (310) and the worm wheel (311) are meshed with each other; and a driving gear (312) is arranged on the rotating shaft in the purge shell (303); The sliding shell (307) is provided with a rack (3072), the two racks (3072) are meshed with the driving gear (312), and the two racks (3072) are arranged in a staggered manner.

5. A scratch-free metal stamping die for automobile battery housing according to claim 4, characterized in that: The mobile module comprises an L-shaped mounting plate (313) arranged on the air inlet shell (304), a driving motor (314) being arranged on the L-shaped mounting plate (313), a driving member (315) being arranged at the output end of the driving motor (314), and a plurality of gear blocks cooperating with the driving member (315) being arranged on the support plate (302).

6. A scratch-free metal stamping die for automobile battery housing according to claim 2, characterized in that: The recovery component (4) comprises a recovery shell (401) arranged between two support plates (302), moving parts (402) for sliding on the support plates (302) are provided on both sides of the recovery shell (401), and a recovery pipe (403) is also provided in communication with the recovery shell (401); The recovery shell (401) is provided with a translation assembly for adjusting the relative position of the recovery shell (401) and the purge shell (303), the translation assembly comprising two inner shells (404) arranged in the recovery shell (401), a reciprocating screw (405) rotatably arranged in the inner shell (404), and the two reciprocating screws (405) are fixedly connected via a connecting shaft; The reciprocating screw (405) is provided with a threaded seat (406), and the threaded seat (406) is provided with a protruding rod. The recovery shell (401) and the inner shell (404) are both provided with a rectangular through groove for facilitating the sliding of the protruding rod. A driving rod (407) is rotatably provided on the protruding rod, and the end of the driving rod (407) is rotatably provided with a fixed protruding block provided on the purge shell (303); The translation assembly also includes a power shell (408) arranged on one side of the inner shell (404), the connecting shaft is provided with a plurality of fan blades (409) located in the power shell (408), an exhaust pipe is connected to the power shell (408), and the end of the exhaust pipe is connected to the recovery pipe (403), an air inlet is provided below the power shell (408), and a filter is provided at the air inlet.

7. A scratch-free metal stamping die for automobile battery housing according to claim 1, characterized in that: The lifting assembly (2) comprises a guide shell (201) arranged on the lower mold bottom plate (101), a pushing member (202) being slidably arranged in the guide shell (201), an electric telescopic rod (205) being further arranged on the guide shell (201), and a telescopic end of the electric telescopic rod (205) being fixedly arranged on the pushing member (202), a push rod (203) being arranged on the pushing member (202), two extrusion rods (204) being rotatably arranged on the push rod (203), and the ends of the extrusion rods (204) being rotatably arranged on the same side support plate (302).

8. The scratch-free metal stamping die for automobile battery housing according to claim 6, characterized in that: The included angle between the air outlet angle of the purge shell (303) and the vertical direction is between 30° and 45°, and the air inlet angle of the recovery shell (401) is also inclined.

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