Punch forming die for aluminum machine cover

Abstract

The utility model discloses an aluminum machine cover punch forming die which comprises a lower die base and further comprises an upper die base, the upper die base is arranged on the top of the lower die base, a cleaning mechanism is installed between the lower die base and the upper die base, and the cleaning mechanism comprises a bottom die, a die cavity, a top die, a punch, a chip groove, an installation base, a flow guide groove, a transverse groove, a spring, a piston and a through hole. A bottom die is installed at the top of the lower die base, a die cavity is formed in the bottom die, the top die moves upwards after stamping, a piston is ejected upwards under the action of the elastic force of a spring, a through hole is aligned with a transverse groove, external high-pressure airflow passes through the interior of the transverse groove and is blown into the die cavity from a flow guide groove, and a formed workpiece can be conveniently taken out; and meanwhile, after the workpiece is taken out, air flow blown into the die cavity can purge the interior of the die cavity, stamping chips are blown to one side of the chip removal groove and discharged from the chip removal groove, automatic purging and cleaning treatment on the interior of the die cavity is achieved, efficiency and comprehensiveness are achieved, the problem that the follow-up aluminum piece forming quality is affected by waste chip residues is solved, and the manual work amount is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum product production, in particular to a stamping die for aluminum engine hoods. Background Technique

[0002] Stamping is a forming processing method that applies external forces to plates, strips, tubes, profiles, etc. through a press and a die, causing them to undergo plastic deformation or separation, so as to obtain workpieces with the required shapes and sizes. Aluminum is one of the commonly used stamping profiles. In the production process of aluminum engine hoods, stamping equipment and stamping dies are generally used to directly carry out stamping forming treatment.

[0003] The existing stamping dies have the following drawbacks when producing aluminum engine hoods: During the stamping production process of aluminum engine hoods, compared with other profiles, aluminum is softer. After completing a single stamping operation, the workpiece needs to be taken out, and then the inside of the die cavity needs to be blown and cleaned to remove chips, ensuring that there are no residual stamping chips to avoid the deformation of the engine hood during the subsequent processing of the aluminum engine hood. The process of blowing and removing chips is generally carried out by manually holding a spray gun, which is cumbersome and cannot be carried out comprehensively. Sometimes there will be residual chips affecting the product quality. For this reason, we propose a stamping die for aluminum engine hoods. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a stamping die for aluminum engine hoods. Through the cleaning mechanism arranged between the lower die base and the upper die base, it can automatically realize the blowing and cleaning treatment of the inside of the die cavity during the stamping process, and at the same time facilitate demoulding, effectively solving the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A stamping die for aluminum engine hoods includes a lower die base and also includes an upper die base. The upper die base is arranged on the top of the lower die base, and a cleaning mechanism is installed between the lower die base and the upper die base. The cleaning mechanism includes a bottom die, a die cavity, a top die, a punch, a chip discharge groove, a mounting seat, a diversion groove, a transverse groove, a spring, a piston and a through hole. The bottom die is installed on the top of the lower die base, and a die cavity is opened inside the bottom die. The top die is installed on the bottom of the upper die base, and a punch matching the die cavity is arranged at the bottom of the top die. A chip discharge groove communicating the inside of the die cavity with the surface of the bottom die is opened on one side inside the bottom die. A mounting seat is arranged on the surface of the bottom die away from the chip discharge groove, and a diversion groove communicating with the inside of the mounting seat is opened at one end of the bottom die away from the chip discharge groove. A transverse groove communicating with the diversion groove is horizontally opened inside the mounting seat, and a piston passing through the transverse groove is vertically movably connected inside the mounting seat through a spring. A through hole is opened inside the piston.

[0007] Further, a positioning mechanism is further included. A positioning mechanism is arranged between the bottom die and the top die. The positioning mechanism includes a chute, a slider, a positioning pin, a screw rod and a through groove. Chutes are opened on both sides inside the bottom die, and sliders are slidably connected through the chutes. Positioning pins are arranged on the tops of the sliders, and through grooves corresponding to the positions of the chutes are opened on both sides of the bottom of the top die. Screw rods are threadedly connected to both sides of the bottom die, and the ends of the screw rods are connected to the sliders. Sliders are slid on both sides of the bottom die through the chutes, and a positioning pin structure is arranged on the top of the slider. Before stamping production, the screw rods are turned according to the specifications of the blank to be processed. When the screw rods are turned, the sliders are pushed to move along the inside of the chutes, thereby adjusting the positions of the positioning pins, so that the adjusted positioning pins exactly meet the installation and positioning requirements of the blank, facilitating processing operations for blanks of different specifications. The through groove structure located at the bottom of the top die can ensure that the positioning pins are inserted into it no matter what position the positioning pins are adjusted to, without affecting the mold closing.

[0008] Further, a fixing seat corresponding to the position of the mounting seat is arranged on one side of the surface of the top die. A pin corresponding to the position of the piston is fixedly connected to the bottom of the fixing seat; the fixing seat moves with the top die, and when the mold is closed, the pin is driven to insert into the mounting seat and press down the piston.

[0009] Further, a connecting pipe is detachably connected to one end of the surface of the mounting seat away from the bottom die, and the end of the connecting pipe is communicated with the inside of the transverse groove; through the connecting pipe, an external air supply device can be connected to supply high-pressure air flow into the mold.

[0010] Further, screw holes are opened at both ends of the bottom die and are connected to the screw rods through the screw holes. Rotating rings located inside the sliders are installed at the ends of the screw rods; when the screw rods are turned, the rotating rings are driven to rotate inside the sliders, so that the movement of the screw rods can drive the movement of the sliders.

[0011] Compared with the prior art, the utility model has the following beneficial effects: During the stamping operation, the top die drives the punch to move downward and cooperate with the die cavity inside the bottom die to perform stamping and forming on the blank. A diversion groove structure connected to the transverse groove is provided on one side inside the die cavity. The connecting pipe is connected to an external high-pressure air supply device. During the stamping and die closing process, the pin at the bottom of the fixed seat presses down and presses the piston, causing the spring to be compressed, and the through hole is misaligned with the transverse groove, disconnecting the air supply path during the stamping process. When the stamping of the aluminum engine cover is completed, the top die moves upward, and the piston is pushed upward under the elastic force of the spring, aligning the through hole with the transverse groove. The external high-pressure air flow passes through the transverse groove and blows into the die cavity from the diversion groove, facilitating the removal of the formed workpiece. At the same time, the air flow blown into the die cavity after the workpiece is removed can purge the inside of the die cavity, blowing the stamping chips to the side of the chip discharge groove and discharging them from the chip discharge groove, realizing automatic purging and cleaning of the inside of the die cavity, which is efficient and comprehensive, avoiding the problem that waste chips remain and affect the forming quality of subsequent aluminum parts, and reducing the manual workload; Sliders are slidably arranged on both sides of the bottom die through chutes, and a positioning pin structure is provided on the top of the sliders. Before the stamping production, the screw is rotated according to the specifications of the blank to be processed. When the screw is rotated, it pushes the slider to move along the inside of the chute, thereby adjusting the position of the positioning pin, so that the adjusted positioning pin exactly meets the installation and positioning requirements of the blank, facilitating processing operations for blanks of different specifications. The through groove structure at the bottom of the top die can ensure that the positioning pin is inserted into it regardless of the position where the positioning pin is adjusted, without affecting die closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a stamping and forming die for an aluminum engine cover according to the utility model.

[0013] Figure 2 FIG. 2 is a schematic diagram of the structure at the connection between the bottom die and the fixed die of a stamping and forming die for an aluminum engine cover according to the utility model.

[0014] Figure 3 FIG. 3 is a schematic diagram of a stamping and forming die for an aluminum engine cover according to the utility model Figure 2 and an enlarged schematic diagram of the structure at A in FIG. 3.

[0015] Figure 4 FIG. 4 is a schematic diagram of the installation structure of the positioning pin of a stamping and forming die for an aluminum engine cover according to the utility model.

[0016] In the figure: 1, lower die base; 2, upper die base; 3, cleaning mechanism; 301, bottom die; 302, die cavity; 303, top die; 304, punch; 305, chip discharge groove; 306, fixed seat; 307, pin; 308, mounting seat; 309, diversion groove; 310, transverse groove; 311, connecting pipe; 312, spring; 313, piston; 314, through hole; 4, positioning mechanism; 401, chute; 402, slider; 403, positioning pin; 404, screw hole; 405, screw; 406, rotating ring; 407, through groove. Detailed implementation manners

[0017] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0018] As Figures 1-4 shown, a stamping die for an aluminum engine hood includes a lower die base 1, and further includes an upper die base 2. The upper die base 2 is arranged on the top of the lower die base 1, and a cleaning mechanism 3 is installed between the lower die base 1 and the upper die base 2. The cleaning mechanism 3 includes a bottom die 301, a die cavity 302, a top die 303, a punch 304, a chip discharge groove 305, a mounting seat 308, a diversion groove 309, a transverse groove 310, a spring 312, a piston 313 and a through hole 314. The bottom die 301 is installed on the top of the lower die base 1, and the die cavity 302 is opened inside the bottom die 301. The top die 303 is installed at the bottom of the upper die base 2, and a punch 304 matching the die cavity 302 is arranged at the bottom of the top die 303. A chip discharge groove 305 communicating the inside of the die cavity 302 with the surface of the bottom die 301 is opened on one side inside the bottom die 301. A mounting seat 308 is arranged on the surface of the bottom die 301 away from the chip discharge groove 305, and a diversion groove 309 communicating with the inside of the mounting seat 308 is opened at one end of the bottom die 301 away from the chip discharge groove 305. A transverse groove 310 communicating with the diversion groove 309 is opened in the horizontal direction inside the mounting seat 308, and a piston 313 penetrating the transverse groove 310 is vertically movably connected inside the mounting seat 308 through a spring 312. A through hole 314 is opened inside the piston 313.

[0019] Wherein, a positioning mechanism 4 is further included. The positioning mechanism 4 is arranged between the bottom die 301 and the top die 303. The positioning mechanism 4 includes a sliding groove 401, a sliding block 402, a positioning pin 403, a screw 405 and a through groove 407. Sliding grooves 401 are opened on both sides inside the bottom die 301, and sliding blocks 402 are slidably connected through the sliding grooves 401. Positioning pins 403 are arranged on the tops of the sliding blocks 402, and through grooves 407 corresponding to the positions of the sliding grooves 401 are opened on both sides at the bottom of the top die 303. Screws 405 are screwed on both sides of the bottom die 301, and the ends of the screws 405 are connected to the sliding blocks 402; sliding blocks 402 are slid on both sides of the bottom die 301 through the sliding grooves 401, and a positioning pin 403 structure is arranged on the top of the sliding block 402. Before stamping production, the screw 405 is rotated according to the specifications of the blank to be processed. When the screw 405 is rotated, the sliding block 402 is pushed to move along the inside of the sliding groove 401, thereby adjusting the position of the positioning pin 403, so that the adjusted positioning pin 403 just meets the installation and positioning requirements of the blank, which is convenient for processing work adapting to blanks of different specifications. The through groove 407 structure located at the bottom of the top die 303 can ensure that the positioning pin 403 is inserted into it no matter what position the positioning pin 403 is adjusted to, without affecting die closing.

[0020] Among them, a fixing seat 306 corresponding to the position of the mounting seat 308 is arranged on one side of the surface of the top mold 303. A plug pin 307 corresponding to the position of the piston 313 is fixedly connected to the bottom of the fixing seat 306. A connecting pipe 311 is detachably connected to one end of the surface of the mounting seat 308 away from the bottom mold 301. The end of the connecting pipe 311 is communicated with the inside of the transverse groove 310. The fixing seat 306 moves with the top mold 303. When the molds are closed, the plug pin 307 is driven to insert into the mounting seat 308 and press down the piston 313. A high-pressure air flow can be supplied into the mold by connecting an external air supply device through the connecting pipe 311.

[0021] Among them, screw holes 404 are formed at both ends of the bottom mold 301 and are connected to screw rods 405 through the screw holes 404. Swivel rings 406 located inside the sliders 402 are installed at the ends of the screw rods 405. When the screw rods 405 are rotated, the swivel rings 406 are driven to rotate inside the sliders 402, so that the movement of the screw rods 405 can drive the movement of the sliders 402.

[0022] It should be noted that the present utility model is a stamping die for an aluminum engine cover. During operation, when performing stamping operations, the top die 303 drives the punch 304 to move downward and cooperate with the mold cavity 302 inside the bottom die 301 to perform stamping and forming on the blank. A diversion groove 309 structure communicating with the transverse groove 310 is provided on one side inside the mold cavity 302. The connecting pipe 311 is connected to an external high-pressure air supply device. During the stamping and mold closing process, the pin 307 at the bottom of the fixed seat 306 presses downward and presses the piston 313, causing the spring 312 to be compressed, and the through hole 314 is misaligned with the transverse groove 310, disconnecting the air path supply during the stamping process. When the stamping of the aluminum engine cover is completed, the top die 303 moves upward, and the piston 313 is pushed upward under the elastic force of the spring 312, aligning the through hole 314 with the transverse groove 310. The external high-pressure air flow passes through the inside of the transverse groove 310 and is blown into the mold cavity 302 through the diversion groove 309, facilitating the removal of the formed workpiece. At the same time, the air flow blown into the mold cavity 302 after the workpiece is removed can purge the inside of the mold cavity 302, blowing the stamping chips toward the chip discharge groove 305 and discharging them from the chip discharge groove 305, realizing automatic purging and cleaning of the inside of the mold cavity 302, which is efficient and comprehensive, avoiding the problem that waste chips remain and affect the quality of subsequent aluminum parts forming, and reducing the manual workload; on both sides of the bottom die 301, sliders 402 slide through the sliding grooves 401, and a positioning pin 403 structure is provided on the top of the sliders 402. Before stamping production, the screw 405 is turned according to the specifications of the blank to be processed. When the screw 405 is turned, it pushes the slider 402 to move along the inside of the sliding groove 401, thereby adjusting the position of the positioning pin 403, so that the adjusted positioning pin 403 exactly meets the installation and positioning requirements of the blank, facilitating processing operations for blanks of different specifications. The through groove 407 structure located at the bottom of the top die 303 can ensure that the positioning pin 403 is inserted into it regardless of the position where the positioning pin 403 is adjusted, without affecting mold closing.

[0023] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A stamping and forming die for an aluminum engine hood, including a lower die base (1), characterized in that, It further includes an upper die holder (2). An upper die holder (2) is provided on the top of the lower die holder (1), and a cleaning mechanism (3) is installed between the lower die holder (1) and the upper die holder (2). The cleaning mechanism (3) includes a bottom die (301), a die cavity (302), a top die (303), a punch (304), a chip discharge groove (305), a mounting seat (308), a diversion groove (309), a transverse groove (310), a spring (312), a piston (313) and a through hole (314). The bottom die (301) is installed on the top of the lower die holder (1), and a die cavity (302) is formed inside the bottom die (301). The top die (303) is installed at the bottom of the upper die holder (2), and a punch (304) matching the die cavity (302) is provided at the bottom of the top die (303). A chip discharge groove (305) communicating the inside of the die cavity (302) with the surface of the bottom die (301) is formed on one side inside the bottom die (301). A mounting seat (308) is provided on the surface of the bottom die (301) away from the chip discharge groove (305), and a diversion groove (309) communicating with the inside of the mounting seat (308) is formed at one end inside the bottom die (301) away from the chip discharge groove (305). A transverse groove (310) communicating with the diversion groove (309) is formed horizontally inside the mounting seat (308), and a piston (313) passing through the transverse groove (310) is vertically movably connected inside the mounting seat (308) through a spring (312). A through hole (314) is formed inside the piston (313).

2. The stamping and forming die for an aluminum engine hood according to claim 1, wherein: It further includes a positioning mechanism (4). A positioning mechanism (4) is provided between the bottom die (301) and the top die (303). The positioning mechanism (4) includes a chute (401), a slider (402), a positioning pin (403), a screw (405) and a through slot (407). Chutes (401) are formed on both sides inside the bottom die (301), and sliders (402) are slidably connected through the chutes (401). Positioning pins (403) are provided on the tops of the sliders (402), and through slots (407) corresponding to the positions of the chutes (401) are formed on both sides of the bottom of the top die (303). Screws (405) are screwed on both sides of the bottom die (301), and the ends of the screws (405) are connected to the sliders (402).

3. The aluminum engine hood stamping die according to claim 1, wherein: A fixed seat (306) corresponding to the position of the mounting seat (308) is provided on one side of the surface of the top die (303), and a plug pin (307) corresponding to the position of the piston (313) is fixedly connected to the bottom of the fixed seat (306).

4. A stamping die for an aluminum engine hood according to claim 1, characterized in that: A connecting pipe (311) is detachably connected to one end of the surface of the mounting seat (308) away from the bottom die (301), and the end of the connecting pipe (311) communicates with the inside of the transverse groove (310).

5. The aluminum engine hood stamping die according to claim 2, characterized in that: Screw holes (404) are formed at both ends of the bottom die (301) and are connected to the screws (405) through the screw holes (404). Rotating rings (406) located inside the sliders (402) are installed at the ends of the screws (405).

Images