Generator rotor copper bar vent hole stamping die

Abstract

The utility model discloses a generator rotor copper bar vent hole stamping die, and relates to the technical field of dies. The die comprises a lower die base and an upper die base, and further comprises that the upper die base is arranged above the lower die base, and a concave die plate is arranged in the middle of the top of the lower die base. The lubricating protection assembly is arranged between the bottom of the outer side of the guide sleeve and the outer portion of the guide column, lubricating oil liquid is injected into the oil groove through the oil injection opening during use, meanwhile, the lubricating cotton cushion is soaked in the oil liquid, and when the stamping die works, the guide sleeve slides in a lifting mode relative to the outer portion of the guide column and drives the lubricating cotton cushion to move in a lifting mode on the outer side of the guide column. Lubricating oil can be uniformly and continuously coated outside the guide pillar, so that the contact surface of the guide sleeve and the guide pillar is always kept lubricated, the situation that the stability and the precision of equipment are influenced due to the fact that the fit clearance between the guide pillar and the guide sleeve is increased because metal scraps are attached to the guide pillar when the stamping die works is avoided, and the normal working state of the guide pillar is kept; and the punching quality of the rotor copper bar vent hole is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to a stamping mold for ventilation holes of generator rotor copper busbars. Background Technology

[0002] Stamping dies, also known as cold stamping dies, are special process equipment used in cold stamping to process metal or non-metal materials into parts. Generator rotor copper busbars are important components in generator rotors, made of high-purity copper plates, used to convert electrical energy into mechanical energy and output the mechanical energy. When manufacturing rotor copper busbars, stamping dies are needed to punch and cut the ventilation holes of the rotor copper busbars.

[0003] However, in practical applications, the upper die holder of existing stamping dies needs to be raised and lowered at high frequency to drive the punch and die to close for stamping. When the upper guide bushing and guide post of the die work at high frequency, insufficient lubrication and increased friction can easily occur, which will affect the normal service life of the die and the stamping accuracy. There is a technical problem that the contact surface between the guide post and the guide bushing cannot be continuously and adequately lubricated to ensure the high-frequency operation of the die and to guarantee the stamping accuracy. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a stamping die for ventilation holes of generator rotor copper busbar, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a stamping die for ventilation holes of a generator rotor copper busbar, including a lower die base and an upper die base, and further comprising: the upper die base being disposed above the lower die base; a concave template being disposed at the middle position of the top of the lower die base; guide posts being disposed at the four corners of the top of the lower die base; guide sleeves being disposed at both ends of the inner sides of the upper die base; a pad being disposed at the middle position of the bottom of the upper die base; a punch fixing plate being disposed at the bottom of the pad; a movable unloading plate being disposed below the punch fixing plate; an oil groove being disposed at the bottom of the outer side of the guide sleeve; an oil injection port being inserted into the top of one side of the oil groove; a lubricating cotton pad being nested at the bottom of the inner side of the oil groove; and support and stabilizing components being disposed on both sides of the top of the lower die base.

[0007] Furthermore, the oil groove and the lubricating cotton pad are annular, the inner diameter of the oil groove is larger than the diameter of the guide post, and the inner side of the lubricating cotton pad and the outer side of the guide post are in contact.

[0008] Furthermore, unloading bolts are provided at the four corners of the top of the movable unloading plate. The top of the unloading bolts penetrates through the two ends of the punch fixing plate, the pad plate, and the inside of the upper die base. A helical spring is provided outside the unloading bolt between the bottom of the punch fixing plate and the top of the movable unloading plate. A punch is provided at the bottom of the punch fixing plate, and the bottom end of the punch penetrates through the inside of the movable unloading plate.

[0009] Furthermore, the top end of the guide post is inserted into the interior of the guide sleeve, and the guide sleeve can slide up and down relative to the outside of the guide post. The interior of the lower mold base is provided with a material dropping groove.

[0010] Furthermore, the support and stabilizing assembly includes a positioning groove, which is located at the middle position of both sides of the top of the lower mold base. A stabilizing roller is movably connected to the top between the two ends inside the positioning groove. A pad is provided on the outside of the stabilizing roller. An installation groove is provided at the middle position of both sides of the top of the lower mold base. An installation plate is provided at the middle position of the bottom of the positioning groove. A connecting stud is provided on one side of the top of the installation plate. A fastening nut is provided on the top of the outer side of the connecting stud.

[0011] Furthermore, the mounting slots are symmetrically arranged on the top of the lower mold base, the mounting plate is inserted into the interior of the mounting slot, and the connecting stud penetrates through the top end of the interior of the mounting slot.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model features a lubrication and protection component installed between the bottom of the outer side of the guide sleeve and the outer side of the guide post. During use, lubricating oil is added to the oil groove through the oil injection port, while the oil simultaneously wets the lubricating cotton pad. When the stamping die is working, the guide sleeve slides up and down relative to the outside of the guide post, simultaneously driving the lubricating cotton pad to move up and down on the outside of the guide post. This ensures that the lubricating oil is evenly and continuously coated on the outside of the guide post, keeping the contact surface between the guide sleeve and the guide post always lubricated. This prevents metal shavings from adhering to the guide post during the stamping die's operation, which would increase the clearance between the guide post and the guide sleeve, thereby affecting the stability and accuracy of the equipment. It maintains the normal working condition of the guide post and ensures the punching quality of the rotor copper busbar ventilation holes.

[0014] This utility model provides support and stabilization components on both sides of the top of the lower die base. During use, the mounting plate is inserted into the mounting groove and the fastening nut is fitted onto the connecting stud and tightened to fix the positioning groove and stabilizing roller on both sides of the top of the lower die base. The stabilizing roller stabilizes the input and output copper busbar material, preventing the ends of the copper busbar material from sagging and causing the middle position to bulge and become skewed, affecting the punching accuracy of the ventilation holes. This ensures the stability of the material input and output during the stamping of the copper busbar ventilation holes and is highly feasible. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom-view three-dimensional mechanism of this utility model;

[0018] Figure 3 This is a front view cross-sectional structural diagram of the oil tank of this utility model;

[0019] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Lower die base; 2. Concave die plate; 3. Movable stripper plate; 4. Positioning groove; 5. Guide post; 6. Oil groove; 7. Guide sleeve; 8. Upper die base; 9. Stripper bolt; 10. Punch fixing plate; 11. Punch; 12. Blanking groove; 13. Mounting groove; 14. Lubricating cotton pad; 15. Pad plate; 16. Helical spring; 17. Oil injection port; 18. Connecting stud; 19. Fastening nut; 20. Mounting insert plate; 21. Stabilizing roller; 22. Pad sleeve. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1As shown in Figure X, this utility model is a stamping die for ventilation holes of a generator rotor copper busbar, including a lower die base 1 and an upper die base 8, and further including: the upper die base 8 is disposed above the lower die base 1, a concave template 2 is disposed at the middle position of the top of the lower die base 1, guide posts 5 are disposed at the four corners of the top of the lower die base 1, guide sleeves 7 are disposed at both ends of the inner sides of the upper die base 8, the top ends of the guide posts 5 are inserted into the interior of the guide sleeves 7, and the guide sleeves 7 can slide relative to the outside of the guide posts 5; a pad 15 is disposed at the middle position of the bottom of the upper die base 8, a punch fixing plate 10 is disposed at the bottom of the pad 15, a movable stripper plate 3 is disposed below the punch fixing plate 10, and stripper bolts 9 are disposed at the four corners of the top of the movable stripper plate 3, with the top ends of the stripper bolts 9 penetrating the punch fixing plate. 10. A spiral spring 16 is provided outside the unloading bolt 9 between the bottom of the punch fixing plate 10 and the top of the movable unloading plate 3 on both sides of the inner side of the pad plate 15 and the upper die base 8. When the stamping die is working, the drive mechanism pushes the upper die base 8 down and drives the pad plate 15, the punch fixing plate 10 and the movable unloading plate 3 down. The movable unloading plate 3 presses down on the copper busbar. At the same time, the guide sleeve 7 descends outside the guide post 5. A punch 11 is provided at the bottom of the punch fixing plate 10. The bottom end of the punch 11 penetrates the interior of the movable unloading plate 3. After the movable unloading plate 3 presses down on the copper busbar, the punch fixing plate 10 continues to descend and pushes the punch 11 to perform stamping processing on a specific position. A blanking groove 12 is provided inside the lower die base 1. The scrap material cut off falls through the blanking groove 12.

[0024] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, an annular oil groove 6 is provided at the bottom of the outer side of the guide sleeve 7. The inner diameter of the oil groove 6 is larger than the diameter of the guide post 5. An oil inlet 17 is inserted into the top of one side of the oil groove 6. An annular lubricating cotton pad 14 is nested at the bottom of the inner side of the oil groove 6. The oil in the oil groove 6 wets the lubricating cotton pad 14. The inner side of the lubricating cotton pad 14 is in contact with the outer side of the guide post 5. When the guide sleeve 7 slides up and down relative to the outside of the guide post 5, the lubricating cotton pad 14 evenly and continuously coats the outside of the guide post 5 with lubricating oil, so that the contact surface between the guide sleeve 7 and the guide post 5 is always lubricated. This avoids metal waste adhering to the guide post 5 during the operation of the stamping die, which would increase the fit clearance between the guide post 5 and the guide sleeve 7, thereby affecting the stability and accuracy of the equipment, maintaining the normal working state of the guide post 5, and ensuring the punching quality of the rotor copper bus ventilation hole.

[0025] When in use, lubricating oil is added to the oil tank 6 through the oil inlet 17. At the same time, the oil soaks the lubricating cotton pad 14. When the stamping die is working, the guide sleeve 7 slides up and down relative to the outside of the guide post 5, and at the same time, it drives the lubricating cotton pad 14 to move up and down on the outside of the guide post 5. This can evenly and continuously coat the outside of the guide post 5 with lubricating oil, so that the contact surface between the guide sleeve 7 and the guide post 5 is always lubricated.

[0026] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, support and stabilizing components are provided on both sides of the top of the lower mold base 1. Each support and stabilizing component includes a positioning groove 4, which is located at the middle position of both sides of the top of the lower mold base 1. A stabilizing roller 21 is movably connected to the top of the two ends of the positioning groove 4. A pad 22 is provided on the outside of the stabilizing roller 21. An installation groove 13 is provided at the middle position of both sides of the top of the lower mold base 1, and the installation grooves 13 are symmetrically arranged on the top of the lower mold base 1. An installation insert 20 is provided at the middle position of the bottom of the positioning groove 4, and the installation insert 20 is inserted into the interior of the installation groove 13. A connecting stud 18 is provided on one side of the top of the 0. The connecting stud 18 passes through the top of the mounting groove 13. A fastening nut 19 is provided on the top of the outer side of the connecting stud 18. By fitting the fastening nut 19 onto the connecting stud 18 and tightening it, the positioning groove 4 and the stabilizing roller 21 can be installed and fixed on both sides of the top of the lower die base 1. The stabilizing roller 21 stabilizes the input and output copper busbars, preventing the ends of the copper busbars from falling down and causing the middle position to bulge and become skewed, affecting the punching accuracy of the ventilation holes, and ensuring the stability of the input and output of the copper busbars during the stamping process of the ventilation holes.

[0027] When in use, insert the mounting plate 20 into the mounting groove 13 and tighten the fastening nut 19 onto the connecting stud 18 to install and fix the positioning groove 4 and the stabilizing roller 21 on the top two sides of the lower mold base 1. The stabilizing roller 21 stabilizes the input and output copper busbars, preventing the ends of the copper busbars from falling down and causing the middle position to bulge and become skewed.

[0028] Working principle: When using the stamping die, first insert the mounting plate 20 into the mounting groove 13 and tighten the fastening nut 19 onto the connecting stud 18 to install and fix the positioning groove 4 and the stabilizing roller 21 on both sides of the top of the lower die base 1. Then, add lubricating oil into the oil groove 6 through the oil injection port 17, while the oil soaks the lubricating cotton pad 14. When the stamping die is working, the copper busbar is conveyed to the concave plate 2 and then the drive mechanism pushes the upper die base 8 down, which in turn drives the pad 15, the punch fixing plate 10 and the movable stripper plate 3 down. The movable stripper plate 3 presses down on the copper busbar and the stabilizing roller 21 is used to move the input and output copper busbar plates. Stable and preventing the copper busbar from sagging at both ends, which would cause the middle position to bulge and become skewed, the spiral spring 16 compresses the unloading bolt 9 and rises relative to it. At the same time, the guide sleeve 7 descends outside the guide post 5, and drives the lubricating cotton pad 14 to move outside the guide post 5 to evenly and continuously coat the outside of the guide post 5 with lubricating oil, so that the contact surface between the guide sleeve 7 and the guide post 5 is always lubricated. After the movable unloading plate 3 presses down on the copper busbar, the punch fixing plate 10 continues to descend and pushes the punch 11 to perform punching processing on a specific position. The lower die base 1 is provided with a blanking groove 12. The scrap material cut off falls through the blanking groove 12, thereby performing stable and continuous rotor copper busbar punching processing operation.

[0029] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A stamping die for generator rotor copper bar venting holes, comprising a lower die seat (1) and an upper die seat (8), characterized in that, Also includes: The upper die seat (8) is arranged above the lower die seat (1), the middle position of the top of the lower die seat (1) is provided with a concave die plate (2), the four corners of the top of the lower die seat (1) are provided with guide columns (5), the two ends of the inside of the upper die seat (8) are provided with guide sleeves (7), the middle position of the bottom of the upper die seat (8) is provided with a backing plate (15), the bottom of the backing plate (15) is provided with a punch fixed plate (10), the lower side of the punch fixed plate (10) is provided with a movable type discharge plate (3), the bottom of the outside of the guide sleeve (7) is provided with an oil groove (6), the top of one side of the oil groove (6) is inserted with an oil inlet (17), the bottom of the inside of the oil groove (6) is nested with a lubricating cotton pad (14), and the two sides of the top of the lower die seat (1) are provided with a supporting and stabilizing assembly.

2. The generator rotor bar vent punch press die of claim 1, wherein, The oil groove (6) and the lubricating cotton pad (14) are annular, the inner diameter of the oil groove (6) is larger than the diameter of the guide column (5), and the inside of the lubricating cotton pad (14) and the outside of the guide column (5) are attached.

3. The generator rotor bar vent punch press die of claim 1, wherein, The movable type discharge plate (3) is provided with a discharge bolt (9) at the four corners of the top, the top end of the discharge bolt (9) penetrates the inside of the two ends of the punch fixed plate (10), the backing plate (15) and the upper die seat (8), the outside of the discharge bolt (9) between the bottom of the punch fixed plate (10) and the top of the movable type discharge plate (3) is provided with a spiral spring (16), the bottom of the punch fixed plate (10) is provided with a punch (11), and the bottom end of the punch (11) penetrates the inside of the movable type discharge plate (3).

4. The generator rotor bar vent punch press die of claim 1, wherein, The top end of the guide column (5) is inserted into the inside of the guide sleeve (7), the guide sleeve (7) can relatively slide up and down outside the guide column (5), and the inside of the lower die seat (1) is provided with a blanking groove (12).

5. The generator rotor bar vent punch press die of claim 1, wherein, The supporting and stabilizing assembly comprises a positioning groove (4), the positioning groove (4) is arranged at the middle position of the two sides of the top of the lower die seat (1), a stable supporting roller (21) is movably connected at the top between the two ends in the inside of the positioning groove (4), the outside of the stable supporting roller (21) is provided with a pad sleeve (22), the middle position of the two sides of the top of the lower die seat (1) is provided with a mounting groove (13), the middle position of the bottom of the positioning groove (4) is provided with a mounting plug plate (20), one side of the top of the mounting plug plate (20) is provided with a connecting stud (18), and the top of the outside of the connecting stud (18) is provided with a fastening nut (19).

6. The generator rotor bar vent punch press die of claim 5, wherein, The mounting groove (13) is symmetrically arranged on the top of the lower die seat (1), the mounting plug plate (20) is inserted into the inside of the mounting groove (13), and the top end of the connecting stud (18) penetrates the inside of the mounting groove (13).

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