Aluminum alloy motor end cover stamping device and process

Abstract

The invention discloses an aluminum alloy motor end cover stamping device and process, and belongs to the technical field of stamping equipment. An aluminum alloy motor end cover stamping device comprises a support and further comprises a lifting device fixedly installed at the upper end of the support, an upper die is fixedly installed at the telescopic end of the lifting device, a machining table is fixedly connected to the support, and a mounting groove is formed in the machining table; the two lower dies are symmetrically arranged up and down and are both arranged in the mounting groove, and an exchange component for driving the two lower dies to be exchanged is arranged in the mounting groove; the stamping efficiency of the aluminum alloy workpiece can be indirectly improved, the two lower dies which are continuously exchanged are not prone to damage, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping equipment, and in particular to a stamping device and process for an aluminum alloy motor end cover. Background Art

[0002] Aluminum alloy workpiece stamping equipment generally refers to mechanical equipment used to process aluminum alloy workpieces. These equipment can further process aluminum alloy workpieces into products of desired shapes and sizes. Stamping is a metal forming process that shapes materials through molds and is suitable for mass production, such as stamping of some motor end covers.

[0003] In the prior art, when the aluminum alloy workpiece stamping equipment completes the stamping work, it is necessary to manually or robotically take out the workpiece in the lower die, and then put the blank into the lower die before the next stamping work can be carried out. The entire operation process is relatively complicated, and the use of robots will also increase the cost of stamping processing, making it difficult to ensure the efficiency of aluminum alloy workpiece stamping processing. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is difficult to ensure the stamping processing efficiency of aluminum alloy workpieces, and to propose an aluminum alloy motor end cover stamping device and process.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stamping device for an aluminum alloy motor end cover comprises a bracket, and also comprises: a lifting device fixedly mounted on the upper end of the bracket, wherein an upper die is fixedly mounted on the telescopic end of the lifting device, a processing table is fixedly connected to the bracket, and a mounting groove is provided on the processing table; two lower dies symmetrically arranged up and down are both arranged in the mounting groove, wherein a swap component for driving the two lower dies to swap with each other is provided in the mounting groove.

[0007] In order to facilitate the lower mold to quickly complete the blanking work, preferably, the replacement component includes a horizontal axis rotatably connected to the mounting groove, and a mounting frame is fixedly mounted on the horizontal axis, wherein the two lower molds are respectively mounted on the upper and lower sides of the mounting frame, and one end of the horizontal axis is equipped with a first gear through a one-way bearing, and a longitudinal rack is fixedly mounted on the upper mold, and when the upper mold moves downward, the longitudinal rack will slide over the first gear.

[0008] In order to make the lower mold vibrate, further, grooves are provided on the upper and lower sides of the mounting frame, and mounting boxes are slidably connected in the two grooves. A strip groove is provided on the upper end of the mounting box, wherein a return spring is installed between the mounting box and the inner bottom of the groove, and knocking blocks are fixedly connected on both sides of the bottom of the mounting box. A limiting block is fixedly installed on the inner wall of the port of the groove, and the lower mold is installed in the strip groove through a reciprocating part.

[0009] In order to allow the lower mold to slide reciprocatingly, the reciprocating component further includes a reciprocating screw rotatably connected in the strip groove, the outer wall of the reciprocating screw is threadedly connected to a reciprocating slider, the lower mold is slidably connected in the strip groove, and the lower mold is fixedly connected to the reciprocating slider, and a linkage part that drives the reciprocating screw to rotate is provided in the lower port of the mounting groove.

[0010] In order to make the reciprocating screw rotate automatically, the linkage part further includes a short shaft rotatably connected in the strip groove, a second gear is fixedly mounted on the short shaft, the short shaft and the reciprocating screw are connected by a chain drive, and an arc-shaped rack is fixedly mounted on the inner wall of the lower port of the mounting groove.

[0011] In order to blow air into the lower mold, further, the inner bottom of the lower mold is provided with a plurality of linearly distributed air holes, and the installation box is provided with a blowing component for blowing air into the air holes.

[0012] In order to enable the inner tube to blow air to multiple air holes in sequence, further, the blowing component includes a socket arranged on the side wall of the lower mold, and the lower end of the air hole extends into the socket, wherein the inner wall of the strip groove is fixedly connected with a cross bar inserted in the socket, and the inner tube is arranged in the cross bar, and the openings at both ends of the inner tube are respectively arranged at the two ends of the cross bar, and one of the openings of the inner tube faces the lower end of one of the air holes.

[0013] In order to automatically transport air to the inner tube, a telescopic airbag is further installed between the lower mold and the inner wall of the strip groove, and an air intake pipe connected to the telescopic airbag is fixedly connected to the telescopic airbag. A button on the inner tube away from the socket is connected to the telescopic airbag, and a one-way valve is fixedly installed in the inner tube and the air intake pipe.

[0014] In order to facilitate the collection and transportation of workpieces, preferably, a conveyor belt is fixedly mounted on the bracket, and a guide tube extending to the upper end of the conveyor belt is fixedly connected to the lower end of the mounting groove.

[0015] A stamping process for an aluminum alloy motor end cover, the operating steps are as follows:

[0016] Step 1: Place the blank into the lower die with the opening facing upward;

[0017] Step 2: Punch the upper die toward the lower die;

[0018] Step 3: At the beginning of the upper die pressing down, the two lower dies are swapped;

[0019] Step 4: When the lower die is set downward, the lower die is moved reciprocatingly;

[0020] Step 5: Reset the upper die upward and take out the stamped workpiece.

[0021] Compared with the prior art, the present invention provides an aluminum alloy motor end cover stamping device, which has the following beneficial effects:

[0022] 1. The aluminum alloy motor end cover stamping device drives the longitudinal rack to move downward synchronously through the upper die, and the upper and lower lower dies will be swapped. When the lower die opening faces downward, the internal workpiece will be automatically discharged, thereby automatically completing the unloading work, indirectly improving the stamping processing efficiency of the aluminum alloy workpiece, and the two lower dies that are continuously swapped are not easily damaged, thereby increasing the service life.

[0023] 2. When the aluminum alloy motor end cover stamping device is pressed down onto the lower die through the upper die, the lower die will be subjected to a downward impact force, and the impact force will be transmitted to the downwardly disposed mounting box and the lower die through the mounting frame. The downwardly disposed lower die will throw the internal workpiece downward, thereby preventing the workpiece from being stuck in the lower die, thereby ensuring the unloading efficiency of the lower die.

[0024] 3. The aluminum alloy motor end cover stamping device, when the installation box slides downward, the installation box will drive the knocking block to hit the limit block, the knocking block will generate vibration, and transmit the vibration to the lower die, so that the lower die will also vibrate, thereby further improving the unloading speed of the lower die.

[0025] 4. The aluminum alloy motor end cover stamping device, when the lower die is about to be set downward by the mounting frame, the mounting frame will make the second gear sweep across the arc-shaped rack first, and the reciprocating slider will drive the lower die to slide back and forth in the strip groove, so that the lower die can shake out the internal workpiece, further improving the material removal efficiency, and indirectly improving the stamping efficiency of the aluminum alloy workpiece.

[0026] 5. The aluminum alloy motor end cover stamping device indirectly stretches and compresses the telescopic airbag through the lower die. When the telescopic airbag is compressed, air is discharged through the inner tube, and when one end of the inner tube is aligned with the air hole, the air hole will blow air into the lower die, so that the workpiece in the lower die can be easier to fall off and the workpiece can also be cooled.

[0027] 6. The aluminum alloy motor end cover stamping device, when the lower die reciprocates, the moving lower die will align multiple air holes with the ports of the inner tube in sequence, so that the multiple air holes will exhaust in sequence, which can make the workpiece in the lower die more efficiently discharged, further improving the material discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the axonometric structure of an aluminum alloy motor end cover stamping device proposed by the present invention;

[0029] Figure 2 A schematic diagram of the partial axonometric structure of an aluminum alloy motor end cover stamping device proposed by the present invention Figure 1;

[0030] Figure 3 A schematic diagram of the partial axonometric structure of an aluminum alloy motor end cover stamping device proposed by the present invention Figure 2 ;

[0031] Figure 4 This is a schematic diagram of an axonometric cross-section structure of a mounting frame of an aluminum alloy motor end cover stamping device proposed by the present invention;

[0032] Figure 5 The present invention provides an aluminum alloy motor end cover stamping device Figure 4 Main view structure diagram;

[0033] Figure 6 The present invention provides an aluminum alloy motor end cover stamping device Figure 5 Schematic diagram of the structure of part A;

[0034] Figure 7 This is a schematic diagram of the isometric structure of the lower die of an aluminum alloy motor end cover stamping device proposed by the present invention;

[0035] Figure 8 This is a schematic diagram of the transverse tube axonometric structure of an aluminum alloy motor end cover stamping device proposed in the present invention.

[0036] In the figure: 1. bracket; 2. lifting device; 3. upper mold; 4. processing table; 5. mounting groove; 6. horizontal axis; 7. mounting frame; 8. lower mold; 9. first gear; 10. longitudinal rack; 11. groove; 12. mounting box; 13. strip groove; 14. return spring; 15. limit block; 16. knock block; 17. reciprocating screw; 18. guide tube; 19. reciprocating slider; 20. short shaft; 21. second gear; 22. chain drive; 23. arc rack; 24. air hole; 25. jack; 26. telescopic air bag; 27. suction pipe; 28. cross bar; 29. ​​inner tube; 30. guide rod; 31. guide hole; 32. conveyor belt. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Embodiment 1:

[0040] Reference Figure 1-Figure 8 A stamping device for an aluminum alloy motor end cover includes a bracket 1, and also includes: a lifting device 2, which is fixedly installed on the upper end of the bracket 1, and the lifting device 2 is a hydraulic cylinder, wherein an upper die 3 is fixedly installed on the telescopic end of the lifting device 2, and a processing table 4 is fixedly connected to the bracket 1, and a mounting groove 5 is provided on the processing table 4; two lower dies 8 symmetrically arranged up and down are both arranged in the mounting groove 5, and the upper die 3 and the lower die 8 are used in conjunction with each other, wherein a replacement component for driving the two lower dies 8 to swap with each other is provided in the mounting groove 5.

[0041] Specifically, when in use, the upper mold 3 is driven to move downward by the lifting device 2 until the upper mold 3 is merged with the lower mold 8, and the stamping processing of the aluminum alloy component can be completed. When the upper mold 3 moves downward, and in the initial stage, the replacement of parts will cause the upper and lower lower molds 8 to swap positions. After the swap is completed, the upper mold 3 will be merged with the lower mold 8. After the stamping is completed, the upper mold 3 can be driven to move upward and reset by the lifting device 2. When the lower mold 8 opens downward, the workpiece inside will be automatically discharged, thereby automatically completing the unloading work, indirectly improving the stamping processing efficiency of the aluminum alloy workpiece, and the two lower molds 8 that are continuously swapped are not easy to be damaged, thereby increasing the service life.

[0042] A conveyor belt 32 is fixedly installed on the above-mentioned bracket 1, and the lower end of the mounting groove 5 is fixedly connected to a guide tube 18 extending to the upper end of the conveyor belt 32. When the lower mold 8 discharges the workpiece inside, the workpiece will fall along the guide tube 18 onto the conveyor belt 32 and automatically complete the conveying of the workpiece.

[0043] Embodiment 2:

[0044] Reference Figure 1-Figure 5 , which is basically the same as the first embodiment, and further discloses a specific implementation plan for replacing components.

[0045] The above-mentioned replacement component includes a horizontal axis 6 rotatably connected to the mounting groove 5, and a mounting frame 7 is fixedly installed on the horizontal axis 6, wherein two lower molds 8 are respectively installed on the upper and lower sides of the mounting frame 7, and a first gear 9 is installed at one end of the horizontal axis 6 through a one-way bearing, and a longitudinal rack 10 is fixedly installed on the upper mold 3. When the upper mold 3 moves downward, the longitudinal rack 10 will slide over the first gear 9.

[0046] Specifically, when the upper mold 3 moves downward, the upper mold 3 will also drive the longitudinal rack 10 to move downward synchronously, and the longitudinal rack 10 will drive the first gear 9 to rotate. The first gear 9 can drive the transverse axis 6 to rotate 180°, and the transverse axis 6 will drive the mounting frame 7 to rotate 180°, so that the upper and lower lower molds 8 will be swapped. After the swap is completed, the upper mold 3 will be merged with the lower mold 8. After the stamping is completed, the upper mold 3 is driven by the lifting equipment 2 to move upward and reset, and the longitudinal rack 10 will drive the first gear 9 to reverse. Since the first gear 9 is installed on the transverse axis 6 through unidirectional axle measurement, the transverse axis 6 will not reverse. Therefore, after each downward stamping of the upper mold 3, the two lower molds 8 are swapped up and down. When the lower mold 8 opens downward, the internal workpiece will be automatically discharged, thereby automatically completing the blanking work, indirectly improving the stamping processing efficiency of the aluminum alloy workpiece, and the two continuously swapped lower molds 8 are not easily damaged, thereby improving the service life.

[0047] A guide rod 30 is fixedly connected to the upper die 3, and a guide hole 31 cooperating with the guide rod 30 is provided on the transverse shaft 6. When the longitudinal rack 10 passes over the first gear 9, the guide rod 30 will be inserted into the guide hole 31 to improve the stability during the stamping process.

[0048] Embodiment three:

[0049] Reference Figure 4-Figure 6 , which is basically the same as the second embodiment, and further, a specific implementation scheme is specifically added to enable the lower mold 8 to slide up and down.

[0050] The above-mentioned mounting frame 7 is provided with grooves 11 on the upper and lower sides, and mounting boxes 12 are slidably connected in the two grooves 11. A strip groove 13 is provided on the upper end of the mounting box 12, wherein a return spring 14 is installed between the mounting box 12 and the inner bottom of the groove 11, and knocking blocks 16 are fixedly connected on both sides of the bottom of the mounting box 12. A limit block 15 is fixedly installed on the inner wall of the port of the groove 11, and the knocking block 16 is aligned with the limit block 15 up and down, and the lower mold 8 is installed in the strip groove 13 through a reciprocating component.

[0051] Specifically, when the upper die 3 is pressed down onto the lower die 8, the lower die 8 will be subjected to a downward impact force, and the impact force will be transmitted to the downwardly disposed mounting box 12 and the lower die 8 through the mounting frame 7. The downwardly disposed lower die 8 and the mounting box 12 will move downward under the action of the impact force, and when the impact force ends, the return spring 14 will drive the mounting box 12 and the lower die 8 to slide and return to the groove 11, so that the downwardly disposed lower die 8 will throw the internal workpiece downward, thereby preventing the workpiece from being stuck in the lower die 8, thereby ensuring the unloading efficiency of the lower die 8, and when the mounting box 12 slides downward, the mounting box 12 will drive the knocking block 16 to hit the limit block 15, and the knocking block 16 will vibrate and transmit the vibration to the lower die 8, so that the lower die 8 will also vibrate, thereby further improving the unloading speed of the lower die 8, and when the lower die 8 is about to be set downward, the reciprocating component will drive the lower die 8 to slide reciprocatingly, so that the lower die 8 can shake out the internal workpiece, further improving the unloading efficiency, and indirectly improving the stamping efficiency of the aluminum alloy workpiece.

[0052] Embodiment 4:

[0053] Reference Figure 4-Figure 6 , which is basically the same as the third embodiment, and furthermore, specifically discloses a specific implementation scheme of the reciprocating component.

[0054] The above-mentioned reciprocating component includes a reciprocating screw 17 rotatably connected in the strip groove 13, the outer wall of the reciprocating screw 17 is threadedly connected with a reciprocating slider 19, the lower mold 8 is slidably connected in the strip groove 13, and the lower mold 8 is fixedly connected to the reciprocating slider 19, and a linkage part for driving the reciprocating screw 17 to rotate is provided in the lower end of the mounting groove 5, and the linkage part includes a short shaft 20 rotatably connected in the strip groove 13, a second gear 21 is fixedly mounted on the short shaft 20, the short shaft 20 is connected to the reciprocating screw 17 by a chain drive 22, and an arc-shaped rack 23 is fixedly mounted on the inner wall of the lower end of the mounting groove 5.

[0055] Specifically, when the mounting bracket 7 drives the lower die 8 to be set downward, the mounting bracket 7 will cause the second gear 21 to first sweep across the arc-shaped rack 23, and the arc-shaped rack 23 will drive the second gear 21 to rotate, and the second gear 21 will drive the short shaft 20 to rotate, and the short shaft 20 will drive the reciprocating screw 17 to rotate through the chain drive 22, and the reciprocating screw 17 will drive the reciprocating slider 19 to slide back and forth, and the reciprocating slider 19 will drive the lower die 8 to slide back and forth in the strip groove 13, so that the lower die 8 can shake out the internal workpiece, further improving the blanking efficiency, and indirectly improving the stamping efficiency of the aluminum alloy workpiece.

[0056] Embodiment five:

[0057] Reference Figure 4-Figure 8 , which is basically the same as the fourth embodiment, and further, a specific implementation scheme of blowing air into the lower mold 8 is specifically added.

[0058] The inner bottom of the above-mentioned lower mold 8 is provided with a plurality of linearly distributed air holes 24, the number of the air holes 24 is 4-12, and the preferred number is 6. A blowing component for blowing air to the air holes 24 is provided in the mounting box 12, and the blowing component includes a socket 25 arranged on the side wall of the lower mold 8, and the lower end of the air hole 24 extends into the socket 25, wherein the inner wall of the strip groove 13 is fixedly connected with a cross bar 28 inserted into the socket 25, and an inner tube 29 is provided in the cross bar 28, and the openings at both ends of the inner tube 29 are respectively arranged at the two ends of the cross bar 28, and one of the openings of the inner tube 29 faces the lower end of one of the air holes 24.

[0059] Specifically, when the lower mold 8 slides back and forth, the air holes 24 will blow air into the lower mold 8, thereby making the workpiece in the lower mold 8 easier to fall off and also dissipating the heat of the workpiece. When the lower mold 8 slides back and forth, since the cross bar 28 is fixed in the strip groove 13, the moving lower mold 8 will align the multiple air holes 24 with the ports of the inner tube 29 in sequence, so that the multiple air holes 24 will exhaust in sequence, which can make the workpiece in the lower mold 8 more efficiently discharged, further improving the material discharge efficiency.

[0060] A telescopic airbag 26 is installed between the lower mold 8 and the inner wall of the strip groove 13, and a suction pipe 27 is fixedly connected to the telescopic airbag 26. A portion of the inner tube 29 away from the insertion hole 25 is connected to the telescopic airbag 26, and a one-way valve is fixedly installed in the inner tube 29 and the suction pipe 27.

[0061] Specifically, when the lower mold 8 slides back and forth, the lower mold 8 will also indirectly stretch and compress the telescopic airbag 26. When the telescopic airbag 26 is compressed, air will be discharged through the inner tube 29. When the telescopic airbag 26 is stretched, the telescopic airbag 26 will inhale air through the suction pipe 27.

[0062] A stamping process for an aluminum alloy motor end cover, the operating steps are as follows:

[0063] Step 1: Place the blank into the lower die 8 with the opening facing upward;

[0064] Step 2: Punch the upper die 3 toward the lower die 8;

[0065] Step 3: At the initial stage of pressing the upper mold 3 downward, the two lower molds 8 are swapped;

[0066] Step 4: When the lower mold 8 is set downward, the lower mold 8 is reciprocated;

[0067] Step 5: Reset the upper die 3 upward and take out the stamped workpiece.

[0068] When the aluminum alloy motor end cover stamping device is in use, the upper die 3 is driven to move downward by the lifting device 2 until the upper die 3 is merged with the lower die 8 to complete the stamping processing of the aluminum alloy component. When the upper die 3 moves downward, the upper die 3 will also drive the longitudinal rack 10 to move downward synchronously, and the longitudinal rack 10 will drive the first gear 9 to rotate. The first gear 9 can drive the horizontal axis 6 to rotate 180°, and the horizontal axis 6 will drive the mounting frame 7 to rotate 180°, so that the upper and lower lower dies 8 will be swapped. After the swap is completed, the upper die 3 will be combined with the lower die 8 are combined, and after the stamping is completed, the upper die 3 is driven by the lifting device 2 to move upward and reset, and the longitudinal rack 10 will drive the first gear 9 to reverse. Since the first gear 9 is installed on the horizontal axis 6 through a one-way axle measurement, the horizontal axis 6 will not reverse. Therefore, after each downward stamping of the upper die 3, the two lower dies 8 are swapped up and down. When the lower die 8 opens downward, the workpiece inside will be automatically discharged, thereby automatically completing the unloading work, which indirectly improves the stamping processing efficiency of the aluminum alloy workpiece, and the two lower dies 8 that are continuously swapped are not easy to be damaged, thereby improving the service life.

[0069] When the upper die 3 is pressed down onto the lower die 8, the lower die 8 will be subjected to a downward impact force, and the impact force will be transmitted to the downwardly disposed installation box 12 and the lower die 8 through the mounting frame 7. The downwardly disposed lower die 8 and the installation box 12 will move downward under the action of the impact force, and when the impact force ends, the reset spring 14 will drive the installation box 12 and the lower die 8 to slide and reset in the groove 11, so that the downwardly disposed lower die 8 will throw the internal workpiece downward, thereby preventing the workpiece from being stuck in the lower die 8, thereby ensuring the unloading efficiency of the lower die 8, and when the installation box 12 slides downward, the installation box 12 will drive the knocking block 16 to hit the limit block 15, and the knocking block 16 will generate vibration and transmit the vibration to the lower die 8, so that the lower die 8 will also generate vibration, thereby further improving the unloading speed of the lower die 8.

[0070] When the mounting frame 7 drives the lower die 8 to be set downward, the mounting frame 7 will make the second gear 21 first sweep across the arc-shaped rack 23, and the arc-shaped rack 23 will drive the second gear 21 to rotate, and the second gear 21 will drive the short shaft 20 to rotate, and the short shaft 20 will drive the reciprocating screw 17 to rotate through the chain drive 22, and the reciprocating screw 17 will drive the reciprocating slider 19 to slide back and forth, and the reciprocating slider 19 will drive the lower die 8 to slide back and forth in the strip groove 13, so that the lower die 8 can shake out the internal workpiece, further improving the blanking efficiency, and indirectly improving the stamping efficiency of the aluminum alloy workpiece.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A stamping device for an aluminum alloy motor end cover, comprising a bracket (1), It is characterized in that Also includes: A lifting device (2) is fixedly mounted on the upper end of the bracket (1). The telescopic end of the lifting device (2) is fixedly mounted with an upper mold (3), the bracket (1) is fixedly connected with a processing table (4), and the processing table (4) is provided with a mounting groove (5); Two lower molds (8) symmetrically arranged up and down are both arranged in the installation groove (5). Wherein, a replacement component for driving the two lower molds (8) to be swapped with each other is arranged in the installation groove (5).

2. The aluminum alloy motor end cover stamping device according to claim 1, It is characterized in that The exchange component comprises a transverse shaft (6) rotatably connected in the mounting groove (5), and a mounting frame (7) is fixedly mounted on the transverse shaft (6). The two lower molds (8) are respectively mounted on the upper and lower sides of the mounting frame (7); a first gear (9) is mounted on one end of the transverse axis (6) via a one-way bearing; a longitudinal rack (10) is fixedly mounted on the upper mold (3); when the upper mold (3) moves downward, the longitudinal rack (10) slides over the first gear (9).

3. The aluminum alloy motor end cover stamping device according to claim 2, It is characterized in that The upper and lower sides of the mounting frame (7) are both provided with grooves (11), and mounting boxes (12) are slidably connected in the two grooves (11), and the upper end of the mounting box (12) is provided with a strip groove (13). A return spring (14) is installed between the installation box (12) and the inner bottom of the groove (11), knocking blocks (16) are fixedly connected to both sides of the bottom of the installation box (12), a limit block (15) is fixedly installed on the inner wall of the port of the groove (11), and the lower mold (8) is installed in the strip groove (13) through a reciprocating component.

4. The aluminum alloy motor end cover stamping device according to claim 3, It is characterized in that The reciprocating component comprises a reciprocating screw (17) rotatably connected in the strip groove (13); the outer wall of the reciprocating screw (17) is threadedly connected with a reciprocating slider (19); the lower die (8) is slidably connected in the strip groove (13), and the lower die (8) is fixedly connected to the reciprocating slider (19); and a linkage part for driving the reciprocating screw (17) to rotate is provided in the lower end of the mounting groove (5).

5. The aluminum alloy motor end cover stamping device according to claim 4, It is characterized in that The linkage part comprises a short shaft (20) rotatably connected in the strip groove (13), a second gear (21) is fixedly mounted on the short shaft (20), the short shaft (20) is connected to the reciprocating screw (17) via a chain drive (22), and an arc-shaped rack (23) is fixedly mounted on the inner wall of the lower end of the mounting groove (5).

6. The aluminum alloy motor end cover punching device according to claim 4, It is characterized in that The inner bottom of the lower mold (8) is provided with a plurality of linearly distributed air holes (24), and the installation box (12) is provided with a blowing component for blowing air into the air holes (24).

7. The aluminum alloy motor end cover punching device according to claim 6, It is characterized in that The blowing component comprises a plug hole (25) arranged on the side wall of the lower mold (8), and the lower end of the air hole (24) extends into the plug hole (25). The inner wall of the strip groove (13) is fixedly connected with a cross bar (28) inserted into the insertion hole (25), an inner tube (29) is arranged in the cross bar (28), and the openings at both ends of the inner tube (29) are respectively arranged at the two ends of the cross bar (28), and one of the openings of the inner tube (29) faces the lower end of one of the air holes (24).

8. The aluminum alloy motor end cover punching device according to claim 7, It is characterized in that A telescopic airbag (26) is installed between the lower mold (8) and the inner wall of the strip groove (13); a suction pipe (27) communicating with the telescopic airbag (26) is fixedly connected to the telescopic airbag (26); a portion of the inner tube (29) away from the insertion hole (25) is connected to the telescopic airbag (26); and one-way valves are fixedly installed in the inner tube (29) and the suction pipe (27).

9. The aluminum alloy motor end cover punching device according to claim 1, It is characterized in that A conveyor belt (32) is fixedly mounted on the bracket (1), and a guide tube (18) extending to the upper end of the conveyor belt (32) is fixedly connected to the lower end of the mounting groove (5).

10. A stamping process for an aluminum alloy motor end cover, comprising an aluminum alloy motor end cover stamping device according to any one of claims 1 to 9, It is characterized in that The steps are as follows: Step 1: placing the blank into a lower die (8) with its opening facing upward; Step 2: Punch the upper die (3) in the direction of the lower die (8); Step 3: At the initial stage of pressing the upper mold (3) downward, the two lower molds (8) are swapped; Step 4: When the lower mold (8) is set downward, the lower mold (8) is moved back and forth; Step 5: Return the upper die (3) upward and take out the punched workpiece.

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