An automatic blanking production method compatible with the production of multiple models of products

Abstract

The present invention discloses an automatic blanking production method that is compatible with the production of multiple models of products, relates to the technical field of bearing seat production, and includes the following steps: S1, product production: coil preparation: fix the coil on a coil feeder, and the coil feeder unfolds the coil and outputs it to a bending machine; coil leveling; stamping and forming; waste separation; S2, sub-mold replacement: sub-mold disassembly; sub-mold installation; the upper and lower sub-molds can be quickly disassembled by the first hydraulic cylinder and the second hydraulic cylinder, and the size diameter range of the upper and lower sub-molds is 113mm to 280mm, so that the upper mold and the lower mold are compatible with the production of multiple models of products, and the sub-mold is replaced on the same sub-mold frame, so that the center of the mold and the height of the bottom always remain unchanged, saving the time for mold change and the debugging time of the clamping mechanism, and can switch products of different specifications more quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing seat production, and in particular to an automatic blanking production method that is compatible with the production of multiple models of products. Background Art

[0002] The current technology in the field of cold stamping of bearing seats is relatively simple. Due to the limitations of equipment tonnage and the inconvenience of mold debugging, most of them adopt a single-process stretching production. The first process of this process is blanking. Currently, the most widely used are the following two blanking modes: 1. Purchase sheet materials, first cut the sheet materials into strips with a shearing machine, and then use the corresponding blanking die to blank the strips into raw semi-finished products; 2. Purchase coils of corresponding sizes, use a coil feeder to feed the coils into the blanking and stretching composite die for punching; both of the above methods have the disadvantages of low material utilization, frequent mold changes, low efficiency and high cost. Summary of the Invention

[0003] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide an automatic blanking production method that is compatible with the production of multiple models of products. The upper mold and the lower mold can be quickly disassembled by the first hydraulic cylinder and the second hydraulic cylinder, and the size diameter range of the upper mold and the lower mold is 113mm to 280mm, so that the upper mold and the lower mold are compatible with the production of multiple models of products. The mold is replaced on the same sub-mold frame, so that the center and the height of the bottom of the mold always remain unchanged, eliminating the time for changing the mold and the debugging time of the clamping mechanism, and can switch between products of different specifications more quickly.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] An automatic blanking production method compatible with the production of multiple models of products, the automatic blanking production method comprising the following steps:

[0006] S1. Product production:

[0007] Coil preparation: The coil is fixed on the coil feeder, which unrolls the coil and outputs it to the bending machine;

[0008] Coil flattening: Use a coil bending machine to flatten the coil output by the coil feeder into steel plates, use a cutting machine to cut the steel plates into several identical rectangular steel plates, and stack them together. Use a suction cup to transport the rectangular steel plates from the material frame to the clamping mechanism, which clamps the rectangular steel plates and transports them to the stamping mechanism.

[0009] Stamping: The clamping mechanism then transports the steel plate between the upper and lower dies and places it on the top surface of the lower die. The upper die is driven by the stamping hydraulic cylinder, and the upper die stamps the steel plate.

[0010] Waste separation: The clamping mechanism moves the processed rectangular steel plate waste out of the stamping mechanism, then releases it, returns it to the suction cup, and re-clamps a new rectangular steel plate for stamping;

[0011] S2. Change sub-model number:

[0012] The bottom surface of the upper mold is detachably connected to the upper sub-mold, and the top surface of the lower mold is detachably connected to the lower sub-mold;

[0013] Sub-mold disassembly: remove the upper sub-mold from the bottom surface of the upper mold, and remove the lower sub-mold from the top surface of the lower mold;

[0014] Sub-mold installation: Replace the upper and lower sub-molds with new ones, and then install the new upper and lower sub-molds on the bottom surface of the upper mold and the top surface of the lower mold respectively, and then resume product production;

[0015] The upper mold and the lower mold can be quickly disassembled by the first hydraulic cylinder and the second hydraulic cylinder, and the diameter range of the upper mold and the lower mold is 113mm to 280mm, so that the upper mold and the lower mold 6 are compatible with the production of multiple models of products. The mold can be replaced on the same sub-mold frame, so that the center and the height of the bottom of the mold always remain unchanged, eliminating the time for mold changing and the debugging time of the clamping mechanism 2, and can switch between products of different specifications more quickly.

[0016] As a further solution of the present invention: a conveyor belt is provided at the bottom of the stamping mechanism, and the conveyor belt is used to transport the stamped products.

[0017] As a further solution of the present invention: the sub-mold disassembly in step S2 includes the following steps:

[0018] Unlocking: opening the first hydraulic cylinder and the second hydraulic cylinder, which drive the first locking tongue and the second locking tongue respectively;

[0019] Upper mold falls: The upper mold falls automatically under the action of its own gravity. The first connecting rod connects the upper mold and the upper die to limit the falling distance of the upper mold.

[0020] By opening the first hydraulic cylinder, the first locking tongue on the first hydraulic cylinder is disengaged from the first locking groove. At this time, the upper mold automatically falls under the action of its own gravity. Since the first connecting rod is provided to connect the upper mold and the upper mold, the falling distance of the upper mold is limited, thereby preventing the upper mold from falling and causing mechanical collision. When installing, it is only necessary to replace the upper mold and then push the upper mold into the upper mold, and automatically lock it using the first locking tongue 52;

[0021] The lower mold pops out: the elastic force of the second spring and the third spring acts on the second connecting rod, causing the second connecting rod to push the lower mold;

[0022] By opening the second hydraulic cylinder, the second locking tongue on the second hydraulic cylinder is disengaged from the second locking groove. At this time, the lower mold will automatically pop out under the elastic force of the second spring and the third spring, which greatly facilitates the staff to replace the new lower mold.

[0023] As a further solution of the present invention: the side of the second connecting rod is rotatably connected to a third connecting rod, and the third connecting rod is used to improve the supporting strength of the second connecting rod.

[0024] As a further solution of the present invention: the clamping mechanism includes a base plate and a clamping plate, the clamping plate is rotatably arranged on the top of the base plate, the clamping plate is driven by a hydraulic push rod, and the clamping plate clamps the rectangular steel plate by rotating to cooperate with the base plate. A first electric slide rail is provided at the bottom of the base plate, and the first electric slide rail is used to drive the base plate. A second electric slide rail is provided at the bottom of the suction cup, and the second electric slide rail is used to drive the suction cup.

[0025] As a further solution of the present invention: first locking grooves that fit with the first locking tongue are provided on both sides of the upper sub-mold near the first locking tongue.

[0026] As a further solution of the present invention: second locking grooves that fit with the second locking tongue are provided on both sides of the lower sub-mold near the second locking tongue.

[0027] As a further solution of the present invention: the diameter range of the punching size of the upper die and the lower die is 113 mm to 280 mm.

[0028] As a further solution of the present invention: the replacement of the sub-model number further includes:

[0029] Sub-mold disassembly: When replacing the upper and lower sub-molds, open the first and second hydraulic cylinders on the upper and lower molds respectively, so that the upper sub-mold automatically falls and the lower sub-mold automatically pops out;

[0030] Sub-mold installation: Replace the upper sub-mold and the lower sub-mold with new ones, and then fix the new upper sub-mold and the lower sub-mold with the first hydraulic cylinder and the second hydraulic cylinder respectively, and then resume product production;

[0031] The upper mold and the lower mold can be quickly disassembled by the first hydraulic cylinder and the second hydraulic cylinder, and the diameter range of the upper mold and the lower mold is 113mm to 280mm, so that the upper mold and the lower mold 6 are compatible with the production of multiple models of products. The mold can be replaced on the same sub-mold frame, so that the center and the height of the bottom of the mold always remain unchanged, eliminating the time for mold changing and the debugging time of the clamping mechanism 2, and can switch between products of different specifications more quickly.

[0032] Beneficial effects of the present invention:

[0033] 1. In the present invention, the upper and lower sub-molds can be quickly disassembled by the first and second hydraulic cylinders, and the diameters of the upper and lower sub-molds range from 113 mm to 280 mm, so that the upper and lower molds are compatible with the production of multiple models of products. The sub-molds can be replaced on the same sub-mold frame, so that the center and the height of the bottom of the mold remain unchanged, eliminating the time for mold changing and the debugging time of the clamping mechanism, and can switch between products of different specifications more quickly.

[0034] 2. In the present invention, by opening the first hydraulic cylinder, the first locking tongue on the first hydraulic cylinder is disengaged from the first locking groove. At this time, the upper mold automatically falls under the action of its own gravity. Since the first connecting rod is provided to connect the upper mold and the upper mold, the falling distance of the upper mold is limited, so the upper mold can be prevented from falling and causing mechanical collision. During installation, it is only necessary to replace the upper mold, and then push the upper mold into the upper mold and use the first locking tongue to automatically lock it.

[0035] 3. In the present invention, by opening the second hydraulic cylinder, the second locking tongue on the second hydraulic cylinder is disengaged from the second locking groove. At this time, the lower mold will automatically pop out under the elastic force of the second spring and the third spring, which greatly facilitates the staff to replace the new lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] Figure 1 It is a top view of the present invention

[0038] Figure 2 It is a front view of the punching mechanism of the present invention;

[0039] Figure 3 This is a front view of the upper mold in the present invention;

[0040] Figure 4 It is the front view of the lower mold in the present invention.

[0041] In the figure: 1. stamping mechanism; 2. clamping mechanism; 3. first electric slide rail; 4. stamping hydraulic cylinder; 5. upper mold; 51. first hydraulic cylinder; 52. first locking tongue; 53. first slider; 54. first connecting rod; 55. first rotating seat; 56. first spring; 6. lower mold; 61. second hydraulic cylinder; 62. second locking tongue; 63. second slider; 64. second connecting rod; 65. second rotating seat; 66. third connecting rod; 67. third slider; 68. second spring; 69. third spring; 7. buffer spring; 8. upper sub-mold; 81. first locking groove; 9. lower sub-mold; 91. second locking groove; 10. suction cup; 11. second electric slide rail; 12. material frame. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0043] Example 1:

[0044] like Figure 1-Figure 4 As shown, an automatic blanking production method that is compatible with the production of multiple models of products, when it is necessary to produce a bearing seat prefabricated part, the automatic blanking production method of the bearing seat prefabricated part includes the following steps:

[0045] S1. Product production:

[0046] Coil preparation: The coil is fixed on the coil feeder, which unrolls the coil and outputs it to the bending machine;

[0047] Coil flattening: Use a coil bending machine to flatten the coil output by the coil feeder into a steel plate, use a cutting machine to cut the steel plate into several identical rectangular steel plates, and stack them together. Use a suction cup 10 to transport the rectangular steel plates from the material frame 12 to the clamping mechanism 2, which clamps the rectangular steel plates and transports them to the stamping mechanism 1. A stamping hydraulic cylinder 4 is bolted to the middle position of the top surface of the stamping mechanism 1. The bottom end of the stamping hydraulic cylinder 4 is connected to the upper mold 5 through a hydraulic rod. Several buffer springs 7 are fixedly connected to the top surface of the upper mold 5. A lower mold 6 is provided on the inner side of the stamping mechanism 1 near the bottom of the upper mold 5.

[0048] Stamping: The clamping mechanism 2 then conveys the steel plate between the upper die 5 and the lower die 6, and places it on the top surface of the lower die 9. The upper die 5 is driven by the stamping hydraulic cylinder 4, and the upper die 5 performs stamping and forming on the steel plate.

[0049] Waste separation: The clamping mechanism 2 moves the processed rectangular steel plate waste out of the stamping mechanism 1, then releases it and returns to the suction cup 10 to re-clamp a new rectangular steel plate for stamping and forming, thus achieving uninterrupted processing of the stamping mechanism 1 and allowing the waste to be promptly moved out of the stamping mechanism 1 through the clamping mechanism 2;

[0050] S2. Change sub-model number:

[0051] Sub-mold disassembly: An upper sub-mold 8 is installed on the bottom surface of the upper mold 5, and a lower sub-mold 9 is installed on the top surface of the lower mold 6. When replacing the upper sub-mold 8 and the lower sub-mold 9, the first hydraulic cylinder 51 and the second hydraulic cylinder 61 on the upper mold 5 and the lower mold 6 are opened respectively, so that the upper sub-mold 8 automatically falls and the lower sub-mold 9 automatically pops out;

[0052] like Figure 3As shown, specifically, first hydraulic cylinders 51 are bolted to both sides of the upper mold 5, and the delivery end of the first hydraulic cylinder 51 is connected to a first locking tongue 52 through a hydraulic rod. Two groups of first sliders 53 are provided inside the upper mold 5, and one end of the first slider 53 is fixedly connected to a first spring 56. The side of the first slider 53 is rotatably connected to a first connecting rod 54, and the end of the first connecting rod 54 away from the first slider 53 is rotatably connected to a first rotating seat 55. The first rotating seat 55 is connected to the upper sub-mold 8 through a hook;

[0053] like Figure 4 As shown, second hydraulic cylinders 61 are bolted to both sides of the lower mold 6, and the conveying end of the second hydraulic cylinder 61 is connected to a second locking tongue 62 through a hydraulic rod. Two groups of second sliders 63 are provided inside the lower mold 6, and one end of the second slider 63 is fixedly connected to a second spring 68. The side of the second slider 63 is rotatably connected to a second connecting rod 64, and the end of the second connecting rod 64 away from the second slider 63 is rotatably connected to a second rotating seat 65. The second rotating seat 65 is connected to the lower mold 6 through a hook. The middle position of the side of the second connecting rod 64 is rotatably connected to a third connecting rod 66, and the end of the third connecting rod 66 away from the second connecting rod 64 is rotatably connected to a third slider 67. A second spring 68 is provided between the third slider 67 and the second slider 63, and the two third sliders 67 are staggered with each other.

[0054] Sub-mold installation: replace the new upper sub-mold 8 and lower sub-mold 9, and then fix the new upper sub-mold 8 and lower sub-mold 9 by the first hydraulic cylinder 51 and the second hydraulic cylinder 61 respectively, and then resume product production.

[0055] The sub-mold disassembly in step S2 includes the following steps:

[0056] Unlocking: Open the first hydraulic cylinder 51 and the second hydraulic cylinder 61, and the first hydraulic cylinder 51 and the second hydraulic cylinder 61 drive the first locking tongue 52 and the second locking tongue 62 respectively;

[0057] The upper mold 8 falls: The upper mold 8 automatically falls under the action of its own gravity. The first connecting rod 54 connects the upper mold 8 and the upper mold 5 to limit the falling distance of the upper mold 8. The first locking grooves 81 that fit with the first locking tongues 52 are formed on both sides of the upper mold 8 near the first locking tongues 52.

[0058] By opening the first hydraulic cylinder 51, the first locking tongue 52 on the first hydraulic cylinder 51 is disengaged from the first locking groove 81. At this time, the upper mold 8 automatically falls under the action of its own gravity. Since the first connecting rod 54 is provided to connect the upper mold 8 and the upper mold 5, the falling distance of the upper mold 8 is limited, thereby preventing the upper mold 8 from falling and causing mechanical collision. When installing, it is only necessary to replace the upper mold 8, and then push the upper mold 8 into the upper mold 5, and use the first locking tongue 52 to automatically lock it.

[0059] The lower mold 9 pops out: the elastic force of the second spring 68 and the third spring 69 acts on the second connecting rod 64, causing the second connecting rod 64 to push the lower mold 9. The two sides of the lower mold 9 near the second locking tongue 62 are provided with second locking grooves 91 that fit with the second locking tongue 62.

[0060] By opening the second hydraulic cylinder 61, the second locking tongue 62 on the second hydraulic cylinder 61 is disengaged from the second locking groove 91. At this time, the lower mold 9 will automatically pop out under the elastic force of the second spring 68 and the third spring 69, which greatly facilitates the staff to replace the new lower mold 9.

[0061] The diameter range of the punching size of the upper die 8 and the lower die 9 is 113 mm to 280 mm.

[0062] The upper mold 8 and the lower mold 9 can be quickly disassembled by the first hydraulic cylinder 51 and the second hydraulic cylinder 61. The diameters of the upper mold 8 and the lower mold 9 range from 113 mm to 280 mm, making the upper mold 5 and the lower mold 6 compatible with the production of multiple models of products. By replacing the molds on the same sub-mold frame, the center and the height of the bottom of the mold always remain unchanged, eliminating the time for mold changing and the debugging time of the clamping mechanism 2, and allowing faster switching between products of different specifications.

[0063] A conveyor belt is provided at the bottom of the stamping mechanism 1, and the conveyor belt is used to transport stamped products, thereby realizing automatic transportation of the products.

[0064] The side of the second connecting rod 64 is rotatably connected to the third connecting rod 66, which is used to improve the supporting strength of the second connecting rod 64. The third connecting rod 66 cooperates with the third slider 67 and the third spring 69. On the one hand, it can cooperate with the second spring 68 to enhance the supporting force of the second connecting rod 64 and ensure that the second connecting rod 64 can support the lower sub-mold 9. On the other hand, the third connecting rod 66 can improve the stability of the second connecting rod 64 and prevent the lower sub-mold 9 from falling back after the second connecting rod 64 supports the lower sub-mold 9.

[0065] like Figure 1 As shown, the clamping mechanism 2 includes a base plate and a clamping plate. The clamping plate is rotatably arranged on the top of the base plate and driven by a hydraulic push rod. The clamping plate rotates to cooperate with the base plate to clamp the rectangular steel plate. A first electric slide rail 3 is provided at the bottom of the base plate. The first electric slide rail 3 is used to drive the base plate. A second electric slide rail 11 is provided at the bottom of the suction cup 10. The second electric slide rail 11 is used to drive the suction cup 10.

[0066] The suction cup 10 sucks the rectangular steel plate from the material frame 12 and moves it to the clamping mechanism 2 under the action of the second electric slide rail 11. The base plate and the clamping plate on the clamping mechanism 2 cooperate with each other to clamp the rectangular steel plate and transport it to the stamping mechanism 1 for stamping. After the stamping is completed, the clamping mechanism takes out the waste.

[0067] Example 2:

[0068] like Figure 1 As shown, an automatic blanking production method that is compatible with the production of multiple models of products is processed according to the following steps when producing bearing seat accessories:

[0069] S1. Product production:

[0070] Coil preparation: The coil is fixed on the coil feeder, which unrolls the coil and outputs it to the bending machine;

[0071] Coil flattening: Use a coil bending machine to flatten the coil output by the coil feeder into a steel plate, use a cutting machine to cut the steel plate into several identical rectangular steel plates, and stack them together. Use a suction cup 10 to transport the rectangular steel plates from the material frame 12 to the clamping mechanism 2, which clamps the rectangular steel plates and transports them to the stamping mechanism 1;

[0072] Stamping: The clamping mechanism 2 then conveys the steel plate between the upper die 5 and the lower die 6, and places it on the top surface of the lower die 9. The upper die 5 is driven by the stamping hydraulic cylinder 4, and the upper die 5 performs stamping and forming on the steel plate.

[0073] Waste separation: The clamping mechanism 2 moves the processed rectangular steel plate waste out of the stamping mechanism 1, then releases it, returns it to the suction cup 10, and re-clamps a new rectangular steel plate for stamping;

[0074] S2. Change sub-model number:

[0075] The bottom surface of the upper mold 5 is detachably connected to the upper sub-mold 8, and the top surface of the lower mold 6 is detachably connected to the lower sub-mold 9, specifically, they can be fixed by bolts;

[0076] Sub-mold removal: Unbolt the bolts connecting the upper sub-mold 8 and the upper mold 5, then remove the upper sub-mold 8 from the bottom surface of the upper mold 5. Similarly, remove the lower sub-mold 9 from the top surface of the lower mold 6.

[0077] Sub-mold installation: Replace the new upper sub-mold 8 and lower sub-mold 9, and then install the new upper sub-mold 8 and lower sub-mold 9 on the bottom surface of the upper mold 5 and the top surface of the lower mold 6 respectively, and then fix them respectively with bolts, and then resume product production.

[0078] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An automatic blanking production method compatible with the production of multiple models of products, characterized in that: The automatic blanking production method comprises the following steps: S1. Product production: Coil preparation: The coil is fixed on the coil feeder, which unrolls the coil and outputs it to the bending machine; Coil flattening: Use a coil bending machine to flatten the coil output by the coil feeder into steel plates, use a cutting machine to cut the steel plates into several identical rectangular steel plates, and stack them together. Use a suction cup to transport the rectangular steel plates from the material frame to the clamping mechanism, which clamps the rectangular steel plates and transports them to the stamping mechanism. Stamping: The clamping mechanism then transports the steel plate between the upper and lower dies and places it on the top surface of the lower die. The upper die is driven by the stamping hydraulic cylinder, and the upper die stamps the steel plate. Waste separation: The clamping mechanism moves the processed rectangular steel plate waste out of the stamping mechanism, then releases it, returns it to the suction cup, and re-clamps a new rectangular steel plate for stamping; S2. Change sub-model number: The bottom surface of the upper mold is detachably connected to the upper sub-mold, and the top surface of the lower mold is detachably connected to the lower sub-mold; Sub-mold disassembly: remove the upper sub-mold from the bottom surface of the upper mold, and remove the lower sub-mold from the top surface of the lower mold; A first hydraulic cylinder is connected to both sides of the upper mold with bolts, and a delivery end of the first hydraulic cylinder is connected to a first locking tongue through a hydraulic rod. Two sets of first sliders are provided inside the upper mold, one end of the first slider is fixedly connected to a first spring, and the side of the first slider is rotatably connected to a first connecting rod, and the end of the first connecting rod away from the first slider is rotatably connected to a first rotating seat, and the first rotating seat is connected to the upper mold through a hook; The two sides of the lower mold are bolted to a second hydraulic cylinder, the delivery end of the second hydraulic cylinder is connected to a second locking tongue through a hydraulic rod, two groups of second sliders are provided inside the lower mold, one end of the second slider is fixedly connected to a second spring, the side of the second slider is rotatably connected to a second connecting rod, the end of the second connecting rod away from the second slider is rotatably connected to a second rotating seat, the second rotating seat is connected to the lower mold through a hook, the middle position of the side of the second connecting rod is rotatably connected to a third connecting rod, the end of the third connecting rod away from the second connecting rod is rotatably connected to a third slider, a third spring is provided between the third slider and the second slider, and the two third sliders are staggered with each other; Sub-mold installation: Replace the new upper sub-mold and lower sub-mold, and then install the new upper sub-mold and lower sub-mold on the bottom surface of the upper mold and the top surface of the lower mold respectively, and then resume product production.

2. The automatic blanking production method compatible with the production of multiple models of products according to claim 1 is characterized in that: A conveyor belt is provided at the bottom of the stamping mechanism, and the conveyor belt is used to transport the stamped products.

3. The automatic blanking production method compatible with the production of multiple models of products according to claim 1 is characterized in that: The sub-mold disassembly in step S2 includes the following steps: Unlocking: opening the first hydraulic cylinder and the second hydraulic cylinder, which drive the first locking tongue and the second locking tongue respectively; Upper mold falls: The upper mold falls automatically under the action of its own gravity. The first connecting rod connects the upper mold and the upper die to limit the falling distance of the upper mold. The lower mold pops out: the elastic force of the second spring and the third spring acts on the second connecting rod, causing the second connecting rod to push the lower mold.

4. The automatic blanking production method compatible with the production of multiple models of products according to claim 3 is characterized in that: The side surface of the second connecting rod is rotatably connected to a third connecting rod, and the third connecting rod is used to improve the supporting strength of the second connecting rod.

5. The automatic blanking production method compatible with the production of multiple models of products according to claim 2 is characterized in that: The clamping mechanism includes a base plate and a clamping plate. The clamping plate is rotatably arranged on the top of the base plate. The clamping plate is driven by a hydraulic push rod. The clamping plate clamps the rectangular steel plate by rotating to cooperate with the base plate. A first electric slide rail is provided at the bottom of the base plate. The first electric slide rail is used to drive the base plate. A second electric slide rail is provided at the bottom of the suction cup. The second electric slide rail is used to drive the suction cup.

6. The automatic blanking production method compatible with the production of multiple models of products according to claim 3 is characterized in that: First locking grooves that fit with the first locking tongue are formed on both sides of the upper sub-mold near the first locking tongue.

7. The automatic blanking production method compatible with the production of multiple models of products according to claim 3 is characterized in that: Second locking grooves that fit with the second locking tongue are provided on both sides of the lower sub-mold near the second locking tongue.

8. The automatic blanking production method compatible with the production of multiple models of products according to claim 1 is characterized in that: The diameter range of the punching size of the upper die and the lower die is 113 mm to 280 mm.

9. The automatic blanking production method compatible with the production of multiple models of products according to claim 1, characterized in that: The replacement sub-model number also includes: Sub-mold disassembly: When replacing the upper and lower sub-molds, open the first and second hydraulic cylinders on the upper and lower molds respectively, so that the upper sub-mold automatically falls and the lower sub-mold automatically pops out; Sub-mold installation: replace the new upper sub-mold and lower sub-mold, and then fix the new upper sub-mold and lower sub-mold through the first hydraulic cylinder and the second hydraulic cylinder respectively, and then resume product production.

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