Flywheel different-position slotted hole machining device and machining method

Abstract

The invention relates to the technical field of flywheel different-position slotted hole machining, and discloses a flywheel different-position slotted hole machining device which comprises a machining platform installed in a machining machine tool, a multi-shaft moving frame connected into the machining machine tool, a tool fixing shaft connected to one end of the multi-shaft moving frame and a drill bit connected into the tool fixing shaft. The detection rod which synchronously ascends and descends is installed on one side of the drill bit, the mark ring used for marking is arranged at the bottom of the detection rod, and the size of the machined hole diameter can be detected in real time through the detection rod and the mark ring. When the aperture is small, a worker can find out abnormity in time through the mark of the mark ring; meanwhile, whether the drill bit is abraded or not can be judged according to marks of the mark ring. Therefore, in the process of machining the workpiece flywheel, online detection of the diameter of the drilled slotted hole is achieved, subsequent supplementary machining and accurate judgment of the abrasion state of the drill bit are facilitated, and the machining efficiency and the quality control level are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of flywheel off - position slot hole machining, and specifically relates to a flywheel off - position slot hole machining device and a machining method. Background Art

[0002] A flywheel is a device that regulates the energy balance of a mechanical system by storing and releasing rotational kinetic energy. Its core function is to buffer rotational speed fluctuations and stabilize power output. Common types of flywheels include traditional metal flywheels, high - performance flywheels, and variable - speed flywheel sets, etc. During the machining of flywheels, the off - position slot holes on different stepped surfaces of the flywheel can be machined by a multi - axis moving truss and a drill bit, so a machine tool is used.

[0003] For example, an automatic drilling machine disclosed in a patent with the patent publication number CN113787215A includes a main frame. A workbench is installed at the upper end of the main frame. Sealing plates are installed at the front and rear ends of the main frame. Two groups of vertically symmetric heat dissipation holes are opened at the front end of the sealing plate. An electrical box is installed inside the main frame. A sub - frame is installed at the lower left end of the main frame. A slag - changing box is installed at the upper end of the sub - frame. A door body is installed at the front end of the slag - changing box. The upper end surface of the slag - changing box is higher than the upper end surface of the workbench. A workpiece is placed in the middle of the upper end of the workbench. A fixing mechanism and a driving mechanism are arranged on the upper end of the workbench in sequence from front to back. The fixing mechanism is located inside the workpiece, and the driving mechanism is located behind the workpiece.

[0004] Although the above - mentioned device solves the problem of chip collection, it still has the following defects: After the drill bit processes a slot hole in the flywheel, workers need to perform a qualified detection of the hole diameter of the processed slot hole in the later stage. If the taken - out flywheel is detected to have a smaller hole diameter (the machining hole diameter becomes smaller due to tool wear), the flywheel needs to be transported back to the processing platform for re - positioning and machining again. Since the flywheel is large in volume and heavy in weight, the transportation is very inconvenient. Therefore, the existing off - position slot hole machining machine tools lack an on - line detection structure for the hole diameter after machining. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a flywheel off - position slot hole machining device to solve the problems raised in the background art, so that the hole diameter after flywheel machining can be detected on - line.

[0006] To achieve the above object, the present invention provides the following technical solution: A flywheel off-position slot hole processing device, including a processing platform installed in a processing machine tool, a multi-axis moving frame connected in the processing machine tool, a tool fixing shaft connected to one end of the multi-axis moving frame, and a drill bit connected in the tool fixing shaft. A limiting ring is sleeved outside the tool fixing shaft, and a U-shaped frame rod is fixedly connected to the outer wall of the limiting ring. A fixing seat is connected between the two cross bars of the U-shaped frame rod. A detection rod for detecting the aperture of the workpiece flywheel is fixedly connected to the bottom surface of the fixing seat. A marking ring is embedded outside one end of the detection rod away from the fixing seat. The marking ring is tapered. A liquid storage core is movably placed in the detection rod. A three-way groove communicating with the liquid storage core is opened at the center of one end of the detection rod provided with the marking ring. A screw cap for blocking the liquid storage core is threadedly connected to the outer wall of one end of the detection rod passing through the fixing seat.

[0007] Further, an annular groove, a rectangular groove and an opening which communicate with each other are opened in the detection rod. A metal trigger ring is fixedly connected in the annular groove. A movable block is slidably connected in the rectangular groove. The end of the movable block passes through the opening and is slidably connected with the opening. The movable block is composed of an arc-shaped convex block and a vertical plate. Two symmetrically arranged second springs are fixedly connected to the outer wall of the vertical plate of the movable block. The other end of the second spring is fixedly connected to the inner wall of the rectangular groove. The two second springs are respectively located on both sides of the arc-shaped convex block of the movable block. Two metal trigger plates are fixedly connected to the surface of the two vertical plates close to the metal trigger ring. A cable is fixedly connected to the top of the metal trigger ring. One end of the cable is connected with a buzzer after passing through the detection rod. The buzzer is fixedly installed with the fixing seat.

[0008] Further, a wiping block is detachably connected to the bottom of the detection rod. The wiping block is located below the marking ring.

[0009] Further, a protective structure is also connected to the outside of the detection rod. The protective structure includes an upper protective plate and a lower protective plate. The upper protective plate is fixedly connected to the outer wall of the detection rod through a cross bar. Two symmetrically arranged vertical sliders are fixedly connected to the outer wall of the lower protective plate. Vertical grooves corresponding to the vertical sliders are opened in the inner wall of the upper protective plate. A top plate is fixedly connected to the top of the lower protective plate. A first spring is fixedly connected to the top of the top plate. The other end of the first spring is fixedly connected to the upper protective plate. The bottom surface of the lower protective plate abuts against the top surface of the workpiece flywheel.

[0010] Further, a limiting column is slidably connected to the center line position of the first spring. The limiting column is fixedly connected to the upper protective plate. The other end of the limiting column is slidably connected to the top plate.

[0011] Further, an electric push rod is horizontally installed on the U-shaped rod, the output shaft of the electric push rod is fixedly installed with the end of the fixed seat, two symmetrically arranged moving grooves are opened at the top of the U-shaped rod, and a moving block fixedly connected with the fixed seat is slidably connected in the moving groove.

[0012] Further, a fixed ring is fixedly connected to the bottom surface of the multi-axis moving frame, a top ring rotatably connected with the fixed ring is fixedly connected to the top of the limiting ring, teeth are fixedly connected to the outer wall of the limiting ring, a motor is embedded in the multi-axis moving frame, and an output end of the motor is fixedly connected with a rotating gear, and the rotating gear is meshed with the teeth.

[0013] A processing method based on the above-mentioned flywheel abnormal groove hole processing device includes the following steps:

[0014] S1: When the drill bit descends to drill holes in the workpiece flywheel, it drives the U-shaped rod to descend synchronously, and drives the detection rod and the marking ring to descend into the groove holes that have been drilled; for qualified groove holes, the marking ring descends smoothly; when the hole diameter is too small, the inner wall of the hole diameter will fit against the outer wall of the marking ring. As the detection rod continues to descend, the inner wall of the groove hole is marked. Workers can clearly know that the hole diameter is non-compliant according to this mark, and replace the worn drill bit and re-drill the hole without taking out the workpiece flywheel.

[0015] S2: When the degree of the groove hole diameter being too small is relatively large, during the process of the detection rod continuing to descend, the inner wall of the groove hole will squeeze the movable block. After the movable block is pressed, it will slide in the opening and the rectangular groove, driving the vertical plate of the movable block to slide, so that the metal trigger plate abuts against the metal trigger ring. After the metal trigger ring is connected, the buzzer is triggered to sound through the cable.

[0016] S3: When the detection rod descends, the wiping block will first contact the groove hole, and the wiping block can wipe off the waste chips and the like in the groove hole.

[0017] S4: When the detection rod descends, the upper protection plate drives the lower protection plate to descend. When the drill bit is drilling, the upper protection plate and the lower protection plate protect the position of the detection rod to prevent the cutting fluid from entering the detection groove hole. As the drill bit continues to penetrate, the upper protection plate slides outside the lower protection plate to ensure the smooth descent of the detection rod.

[0018] S5: When the detection rod follows the drill bit in the reset state, the lower protection plate always abuts against the top surface of the workpiece flywheel under the action of the first spring. When the workpiece flywheel is driven to rotate by the processing platform, the lower protection plate can act as a scraping plate to scrape off the waste chips on the top surface of the workpiece flywheel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The flywheel eccentric slot processing device has a synchronously rising and falling detection rod installed on one side of the drill bit, and a marking ring is provided at the bottom of the detection rod for marking. Through this structural design, the detection rod and the marking ring can be used to detect the size of the processed hole diameter in real time. When the hole diameter is too small, the worker can find the abnormality in time through the mark of the marking ring; at the same time, it can also be judged whether the drill bit has been worn according to the marking ring. Therefore, in the process of processing the workpiece flywheel, the online detection of the diameter of the drilled slot hole is realized, which is convenient for subsequent supplementary processing and accurate judgment of the wear state of the drill bit, and improves the processing efficiency and quality control level.

[0021] This flywheel eccentric slot processing device can provide an immediate alarm when the slot diameter is smaller than the specified size through the coordinated work of the movable block, metal trigger plate, metal trigger ring and buzzer. When the hole diameter is detected to be too small, the movable block will slide due to squeezing. This action will trigger the metal trigger plate to contact the metal trigger ring, and then activate the buzzer to sound an alarm. This design can remind workers that the current processing difference is large without observing the mark, so as to facilitate rapid corrective measures, thereby ensuring product quality and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the processing platform, multi-axis moving frame and drill bit of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the tool fixing shaft and the drill bit of the present invention;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the tool fixing shaft, drill bit, U-shaped frame rod and fixing seat of the present invention;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the U-shaped frame rod, the limiting ring, the rotating gear and the teeth of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the detection rod, the marking ring and the wiping block of the present invention;

[0028] Figure 7 It is a schematic diagram of a three-dimensional cross-sectional structure of a local state of a detection rod of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the upper protective plate and the lower protective plate of the present invention.

[0030] In the figure: 1. Multi-axis moving frame; 2. Processing platform; 3. Drill bit; 4. U-shaped frame rod; 5. Upper protective plate; 6. Workpiece flywheel; 7. Tool fixing shaft; 8. Detection rod; 9. Lower protective plate; 10. Buzzer; 11. Fixed seat; 12. Electric push rod; 13. Limit ring; 14. Fixed ring; 15. Rotating gear; 16. Marking ring; 17. Top ring; 18. Motor; 19. Tooth; 20. Wiping block; 21. Movable block; 22. Moving groove; 23. Rotating cap; 24. First spring; 25. Moving block; 26. Liquid storage core; 27. Metal trigger ring; 28. Limit post; 29. Metal trigger plate; 30. Three-way groove; 31. Cable; 32. Annular groove; 33. Rectangular groove; 34. Opening; 35. Second spring; 36. Vertical slider; 37. Top plate; 38. Vertical groove. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Please refer to Figures 1 - 8 , a flywheel off-position slot hole processing device, including a processing platform 2 installed in a processing machine tool, a multi-axis moving frame 1 connected in the processing machine tool, a tool fixing shaft 7 connected to one end of the multi-axis moving frame 1, and a drill bit 3 connected in the tool fixing shaft 7. A limit ring 13 is sleeved outside the tool fixing shaft 7, and a U-shaped frame rod 4 is fixedly connected to the outer wall of the limit ring 13. A fixed seat 11 is connected between the two cross bars of the U-shaped frame rod 4. A detection rod 8 for detecting the hole diameter of the workpiece flywheel 6 is fixedly connected to the bottom surface of the fixed seat 11. A marking ring 16 is embedded outside one end of the detection rod 8 away from the fixed seat 11. The marking ring 16 is tapered. A liquid storage core 26 is movably placed in the detection rod 8. A three-way groove 30 communicating with the liquid storage core 26 is opened at the center of one end of the detection rod 8 provided with the marking ring 16. A rotating cap 23 for blocking the liquid storage core 26 is threadedly connected to the outer wall of one end of the detection rod 8 passing through the fixed seat 11.

[0033] In the flywheel off-position slot hole processing device of the present invention, when the drill bit 3 is performing drilling operations, the multi-axis moving frame 1 descends, the tool fixing shaft 7 rotates, and while the drill bit 3 descends, it drives the U-shaped frame rod 4 to descend synchronously, driving the detection rod 8 and the marking ring 16 to descend into the slot hole that has been drilled. The detection rod 8 can detect the slot hole that has been drilled.

[0034] When the slot hole has a qualified aperture, the marking ring 16 descends smoothly; when the aperture of the slot hole is too small, the inner wall of the aperture will fit against the outer wall of the marking ring 16. As the detection rod 8 continues to descend, the inner wall of the slot hole will be marked. Workers can, based on this mark, clearly know that the aperture does not meet the requirements. Without removing the workpiece flywheel 6, they can replace the worn drill bit 3 and re-drill the hole.

[0035] Here, the marking ring 16 is conically arranged, which facilitates the smooth sliding of the marking ring 16 into the slot hole. Since the aperture of the slot hole has a standard value, the diameter of the marking ring 16 can be set according to the standard value of the aperture, that is, the diameter of the marking ring 16 can be set to be the same as the standard value. That is, when the aperture is smaller than the standard diameter, it will be marked by the marking ring 16 to remind the worker that the aperture is already smaller than the standard value.

[0036] A liquid storage core 26 is provided inside the detection rod 8. The liquid is smoothly introduced into the marking ring 16 by means of a three-way groove 30, so that the marking ring 16 always maintains the function of a marking pen. The marking ring 16 can be a fiber tip, a plastic microporous tip or a nylon hard tip, which can not only ensure the smooth flow of the liquid but also ensure the wear resistance of the marking ring 16.

[0037] The cap 23 plugs the liquid storage core 26 and can be screwed open and separated from the end of the detection rod 8, facilitating the replacement operation of the liquid storage core 26.

[0038] A detection rod 8 that synchronously moves up and down is installed on one side of the drill bit 3, and a marking ring 16 that can be used for marking is provided at the bottom of the detection rod. Through this structural design, the size of the processed aperture can be detected in real time by using the detection rod 8 and the marking ring 16. When the aperture is too small, the worker can timely discover the abnormality through the mark of the marking ring 16; at the same time, it can also be judged whether the drill bit 3 is worn according to the marking ring 16. Thus, during the process of machining the workpiece flywheel 6, the online detection of the diameter of the drilled slot hole is realized, which is convenient for subsequent supplementary machining and the accurate judgment of the wear state of the drill bit 3, improving the machining efficiency and the quality control level.

[0039] As a preferred technical solution of the present invention, an annular groove 32, a rectangular groove 33 and an opening 34 that communicate with each other are formed inside the detection rod 8. A metal trigger ring 27 is fixedly connected inside the annular groove 32. A movable block 21 is slidably connected inside the rectangular groove 33. The end of the movable block 21 passes through the opening 34 and is slidably connected with the opening 34. The movable block 21 is composed of an arc-shaped convex block and a vertical plate. Two symmetrically arranged second springs 35 are fixedly connected to the outer wall of the vertical plate of the movable block 21. The other end of the second spring 35 is fixedly connected to the inner wall of the rectangular groove 33. The two second springs 35 are respectively located on both sides of the arc-shaped convex block of the movable block 21. A metal trigger plate 29 is fixedly connected to the side of the two vertical plates close to the metal trigger ring 27. A cable 31 is fixedly connected to the top of the metal trigger ring 27. After passing through the detection rod 8, one end of the cable 31 is connected to a buzzer 10, and the buzzer 10 is fixedly installed with the fixed seat 11.

[0040] Specifically, when the aperture of the slot is relatively small, during the continuous downward movement of the detection rod 8, the marking ring 16 continuously marks. At the same time, the inner wall of the slot will squeeze the movable block 21. After being pressed, the movable block 21 will slide in the opening 34 and the rectangular slot 33, driving the vertical plate of the movable block 21 to slide, so that the metal trigger plate 29 abuts against the metal trigger ring 27. After the metal trigger ring 27 is connected, the buzzer 10 is triggered through the cable 31 to emit a sound.

[0041] Under normal circumstances, the movable block 21 is pulled by the second spring 35, so that the metal trigger plate 29 is away from the metal trigger ring 27, thus avoiding the buzzer 10 from emitting an alarm. When the diameter is small, the movable block 21 is pressed, and the second spring 35 is stretched, resulting in the contact between the metal trigger plate 29 and the metal trigger ring 27, and then an alarm sound is emitted.

[0042] Through the coordinated work of the movable block 21, the metal trigger plate 29, the metal trigger ring 27 and the buzzer 10, an immediate alarm can be provided when the diameter of the slot is smaller than the specified size. When it is detected that the aperture is small, the movable block 21 will slide due to being squeezed. This action will trigger the contact between the metal trigger plate 29 and the metal trigger ring 27, and then activate the buzzer 10 to emit a sound alarm. This design can remind the worker that there is a large difference in the current processing without observing the mark, which is convenient for quickly taking corrective measures, so as to ensure product quality and improve production efficiency. In practical applications, after the buzzer 10 emits an alarm, the multi-axis moving frame 1 can be forced to reset and no longer continue the drilling operation.

[0043] As a preferred technical solution of the present invention, a wiping block 20 is detachably connected to the bottom of the detection rod 8, and the wiping block 20 is located below the marking ring 16.

[0044] Specifically, when the detection rod 8 is about to enter the slot, the wiping block 20 can first wipe the iron filings in the slot to prevent the detection from being affected.

[0045] As a preferred technical solution of the present invention, a protective structure is further connected to the outer side of the detection rod 8. The protective structure includes an upper protective plate 5 and a lower protective plate 9. The upper protective plate 5 is fixedly connected to the outer wall of the detection rod 8 through a cross bar. Two symmetrically arranged vertical sliders 36 are fixedly connected to the outer wall of the lower protective plate 9. Vertical slots 38 corresponding to the vertical sliders 36 are provided on the inner wall of the upper protective plate 5. A top plate 37 is fixedly connected to the top of the lower protective plate 9. A first spring 24 is fixedly connected to the top of the top plate 37, and the other end of the first spring 24 is fixedly connected to the upper protective plate 5. The bottom surface of the lower protective plate 9 abuts against the top surface of the workpiece flywheel 6.

[0046] Specifically, when the detection rod 8 descends, the upper protection plate 5 drives the lower protection plate 9 to descend. When the drill bit 3 is drilling, the upper protection plate 5 and the lower protection plate 9 protect the position of the detection rod 8 to prevent the cutting fluid from entering the detection groove hole. As the drill bit 3 continues to penetrate, the upper protection plate 5 slides outside the lower protection plate 9 to ensure the smooth descent of the detection rod 8. In this way, it can be ensured that during the drilling operation of the drill bit 3, the upper protection plate 5 and the lower protection plate 9 can always protect the detection rod 8 and prevent the oil fluid from entering the detection hole, resulting in the failure of the mark.

[0047] After the drill bit 3 rises, the upper protection plate 5 and the lower protection plate 9 are unfolded under the action of the first spring 24. At this time, the lower protection plate 9 always abuts against the top surface of the workpiece flywheel 6. In this way, when the processing platform 2 rotates to drive the workpiece flywheel 6 to rotate, the lower protection plate 9 acts like a scraper and can scrape the cutting fluid on the surface of the workpiece flywheel 6, making the detection effect better during detection. Moreover, most of the groove holes are through holes, and the oil fluid can smoothly fall from the hole diameter.

[0048] During drilling, the drill bit 3 is driven by the multi-axis moving frame 1 to descend and simultaneously rotates self-drivenly under the rotation of the tool fixing shaft 7. When the drill bit 3 descends to contact the surface of the flywheel 6, the drill bit 3 drills a hole in the surface of the flywheel 6 (this is the prior art).

[0049] At the same time, the detection rod 8 is fixed to the bottom surface of the multi-axis moving frame 1 through the limit ring 13 and the fixed ring 14 at the end of the U-shaped frame rod 4. That is to say, the U-shaped frame rod 4 is not affected by the rotation of the tool fixing shaft 7 and the drill bit 3 and only moves up and down with the multi-axis moving frame 1.

[0050] When the drill bit 3 descends, it drives the U-shaped frame rod 4, the detection rod 8 and the upper protection plate 5 to descend. At this time, the upper protection plate 5 will slide outside the lower protection plate 9 (the vertical groove 38 and the vertical slider 36 mentioned below). In this way, by using the upper and lower protection plates, it can always prevent the cutting fluid from splashing onto the bottom of the detection rod 8, resulting in the failure of the mark.

[0051] Before the drill bit 3 descends, the upper protection plate 5 and the lower protection plate 6 are always in the unfolded state under the influence of the elastic potential energy of the first spring 24. Such a setting can not only play a full protection role. At the same time, after the drill bit 3 rises, the flywheel 6 needs to rotate to change to the next drilling position. The flywheel 6 is rotated by the motor, so that the bottom surface of the lower protection plate 6 abutting against the surface of the flywheel 6 can push the waste chips and impurities on the surface of the flywheel 6, achieving a scraping effect and preventing the waste chips from directly entering the just drilled hole (because when the drill bit 3 descends again, it will detect the just drilled groove hole).

[0052] As a preferred technical solution of the present invention, a limit post 28 is slidably connected to the center line position of the first spring 24. The limit post 28 is fixedly connected to the upper protection plate 5, and the other end of the limit post 28 is slidably connected to the top plate 37.

[0053] Specifically, when the upper protection plate 5 descends, the vertical groove 38 on the inner wall of the upper protection plate 5 slides outside the vertical slider 36 on the outer wall of the lower protection plate 9. At this time, the first spring 24 is compressed, and the limit post 28 ensures the vertical stability of the first spring 24 when it is compressed, preventing the first spring 24 from bending and deforming and losing its spring effect.

[0054] As a preferred technical solution of the present invention, an electric push rod 12 is horizontally installed on the U-shaped support rod 4. The output shaft of the electric push rod 12 is fixedly installed with the end of the fixed seat 11. Two symmetrically arranged moving grooves 22 are opened at the top of the U-shaped support rod 4, and a moving block 25 fixedly connected with the fixed seat 11 is slidably connected in the moving groove 22.

[0055] Specifically, due to the different differences in the hole diameters on the flywheels 6 of different workpieces, the distance between two adjacent slots needs to be adjusted. After knowing the hole diameter and the distance between two holes, the operation end of the processing machine tool can be used to control the electric push rod 12 to push the fixed seat 11 to move on the U-shaped support rod 4, driving the moving block 25 on the ground of the fixed seat 11 to slide in the moving groove 22 of the U-shaped support rod 4, so that after each descent of the drill bit 3, the detection rod 8 can match the just-drilled slot.

[0056] In addition, each drill bit 3 can be matched with a detection rod 8. Since the moving groove 22 here is a through groove at the end of the U-shaped support rod 4, when it is necessary to replace the detection rod 8 that matches the slot (drill bit 3), only the connection between the electric push rod 12 and the fixed seat 11 needs to be opened, and the fixed seat 11 can be removed from the U-shaped support rod 4, so that it is convenient to remove the detection rod 8.

[0057] As a preferred technical solution of the present invention, a fixed ring 14 is fixedly connected to the bottom surface of the multi-axis moving frame 1. The top of the limit ring 13 is fixedly connected with a top ring 17 rotatably connected with the fixed ring 14. The outer wall of the limit ring 13 is fixedly connected with teeth 19. A motor 18 is embedded in the multi-axis moving frame 1, and the output end of the motor 18 is fixedly connected with a rotating gear 15, and the rotating gear 15 is meshed with the teeth 19.

[0058] Specifically, due to the different differences in the hole diameters on the flywheels 6 of different workpieces, not only the distance between two adjacent slots needs to be adjusted, but also the position of the detection rod 8 needs to rotate around the axis of the drill bit 3. After knowing the hole diameter and the distance between two holes, the motor 18 can be controlled to act, so that its output shaft drives the rotating gear 15 to mesh with the teeth 19, driving the limit ring 13 to rotate, driving the fixed ring 17 at the top of the limit ring 13 to rotate in the top ring 14, and making the limit ring 13 drive the U-shaped support rod 4 to rotate when rotating.

[0059] A processing method based on the above-mentioned flywheel off-position slot processing device includes the following steps:

[0060] S1: When the drill bit 3 descends to drill holes in the workpiece flywheel 6, it drives the U-shaped rod 4 to descend synchronously, driving the detection rod 8 and the marking ring 16 to descend into the already drilled slot holes. For qualified slot holes, the marking ring 16 descends smoothly. When the hole diameter is too small, the inner wall of the hole diameter will fit against the outer wall of the marking ring 16. As the detection rod 8 continues to descend, the inner wall of the slot hole is marked. Workers can, based on this mark, clearly know that the hole diameter does not meet the requirements. Without removing the workpiece flywheel 6, the worn drill bit 3 can be replaced and drilling can be carried out again.

[0061] S2: When the degree of the slot hole diameter being too small is relatively large, during the process of the detection rod 8 continuing to descend, the inner wall of the slot hole will squeeze the movable block 21. After the movable block 21 is pressed, it will slide in the opening 34 and the rectangular slot 33, driving the vertical plate of the movable block 21 to slide, making the metal trigger plate 29 abut against the metal trigger ring 27. After the metal trigger ring 27 is connected, the buzzer 10 is triggered through the cable 31 to emit a sound.

[0062] S3: When the detection rod 8 descends, the wiping block 20 will first contact the slot hole, and the wiping block 20 can wipe clean the waste chips and the like in the slot hole.

[0063] S4: When the detection rod 8 descends, the upper protection plate 5 drives the lower protection plate 9 to descend. When the drill bit 3 is drilling, the upper protection plate 5 and the lower protection plate 9 protect the position of the detection rod 8 to prevent the cutting fluid from entering the detection slot hole. As the drill bit 3 continues to penetrate, the upper protection plate 5 slides outside the lower protection plate 9 to ensure the smooth descent of the detection rod 8.

[0064] S5: When the detection rod 8 follows the drill bit 3 in the reset state, the lower protection plate 9 always abuts against the top surface of the workpiece flywheel 6 under the action of the first spring 24. When the workpiece flywheel 6 is driven to rotate by the processing platform 2, the lower protection plate 9 can act as a scraper to scrape away the waste chips on the top surface of the workpiece flywheel 6.

[0065] In the above structure, the electric push rod 12, the motor 18, and the buzzer 10 are all existing mature technologies, so no detailed description will be given here. And after the processing of the last slot hole is completed, the workpiece flywheel 6 can rotate once again to detect the last slot hole. That is to say, the workpiece flywheel 6 rotates one more time, enabling the drill bit 3 to enter the first drilled slot hole, and enabling the detection rod 8 to detect the last slot hole.

[0066] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flywheel abnormal position slot machining device, comprising a machining platform (2) installed in a machining machine tool, a multi-axis moving frame (1) connected in the machining machine tool, a tool fixing shaft (7) connected to one end of the multi-axis moving frame (1), and a drill bit (3) connected in the tool fixing shaft (7), characterized in that, A limiting ring (13) is sleeved outside the tool fixing shaft (7). A U-shaped frame rod (4) is fixedly connected to the outer wall of the limiting ring (13). A fixing seat (11) is connected between the two cross bars of the U-shaped frame rod (4). A detection rod (8) for detecting the hole diameter of the workpiece flywheel (6) is fixedly connected to the bottom surface of the fixing seat (11). A marking ring (16) is embedded on the outer side of the end of the detection rod (8) away from the fixing seat (11). The marking ring (16) is tapered. A liquid storage core (26) is movably placed in the detection rod (8). A three-way groove (30) communicating with the liquid storage core (26) is opened at the center of the end of the detection rod (8) provided with the marking ring (16). A cap (23) for blocking the liquid storage core (26) is threadedly connected to the outer wall of the end of the detection rod (8) passing through the fixing seat (11).

2. The flywheel off-position slot machining device according to claim 1, characterized in that, An annular groove (32), a rectangular groove (33) and an opening (34) which are communicated with each other are opened in the detection rod (8). A metal trigger ring (27) is fixedly connected in the annular groove (32). A movable block (21) is slidably connected in the rectangular groove (33). The end of the movable block (21) passes through the opening (34) and is slidably connected with the opening (34). The movable block (21) is composed of an arc-shaped convex block and a vertical plate. Two symmetrically arranged second springs (35) are fixedly connected to the outer wall of the vertical plate of the movable block (21). The other end of the second spring (35) is fixedly connected to the inner wall of the rectangular groove (33). The two second springs (35) are respectively located on both sides of the arc-shaped convex block of the movable block (21). A metal trigger plate (29) is fixedly connected to the side of the two vertical plates close to the metal trigger ring (27). A cable (31) is fixedly connected to the top of the metal trigger ring (27). One end of the cable (31) is connected with a buzzer (10) after passing through the detection rod (8). The buzzer (10) is fixedly installed with the fixing seat (11).

3. The flywheel off-position slot machining device according to claim 2, characterized in that, A wiping block (20) is detachably connected to the bottom of the detection rod (8). The wiping block (20) is located below the marking ring (16).

4. A flywheel off - position slot - hole machining device according to claim 3, characterized in that, A protection structure is also connected to the outer side of the detection rod (8). The protection structure includes an upper protection plate (5) and a lower protection plate (9). The upper protection plate (5) is fixedly connected to the outer wall of the detection rod (8) through a cross bar. Two symmetrically arranged vertical sliding blocks (36) are fixedly connected to the outer wall of the lower protection plate (9). A vertical groove (38) corresponding to the vertical sliding block (36) is opened in the inner wall of the upper protection plate (5). A top plate (37) is fixedly connected to the top of the lower protection plate (9). A first spring (24) is fixedly connected to the top of the top plate (37). The other end of the first spring (24) is fixedly connected to the upper protection plate (5). The bottom surface of the lower protection plate (9) abuts against the top surface of the workpiece flywheel (6).

5. A flywheel off-position slot machining device according to claim 4, characterized in that, A limiting column (28) is slidably connected at the center line position of the first spring (24). The limiting column (28) is fixedly connected to the upper protection plate (5). The other end of the limiting column (28) is slidably connected to the top plate (37).

6. The flywheel off-position slot machining device according to claim 5, characterized in that An electric push rod (12) is horizontally installed on the U-shaped support rod (4). The output shaft of the electric push rod (12) is fixedly installed with the end of the fixed seat (11). Two symmetrically arranged moving grooves (22) are formed at the top of the U-shaped support rod (4). A moving block (25) fixedly connected with the fixed seat (11) is slidably connected in the moving groove (22).

7. An apparatus for machining a flywheel's displaced slot hole according to claim 6, characterized in that, A fixed ring (14) is fixedly connected to the bottom surface of the multi-axis moving frame (1). A top ring (17) rotatably connected with the fixed ring (14) is fixedly connected to the top of the limiting ring (13). Teeth (19) are fixedly connected to the outer wall of the limiting ring (13). A motor (18) is embedded in the multi-axis moving frame (1). The output end of the motor (18) is fixedly connected with a rotating gear (15). The rotating gear (15) is meshed with the teeth (19).

8. A processing method for a flywheel abnormal position slot hole processing device according to any one of the above claims 1-7, comprising the following steps: S1: When the drill bit (3) descends to drill holes in the workpiece flywheel (6), it drives the U-shaped support rod (4) to descend synchronously, driving the detection rod (8) and the marking ring (16) to descend into the already drilled slot holes; for qualified slot holes, the marking ring (16) descends smoothly; when the hole diameter is too small, the inner wall of the hole diameter will fit against the outer wall of the marking ring (16). As the detection rod (8) continues to descend, the inner wall of the slot hole is marked. Workers can, based on this mark, clearly know that the hole diameter is non-compliant. Without removing the workpiece flywheel (6), replace the worn drill bit (3) and re-drill the hole; S2: When the degree of the slot hole diameter being too small is relatively large, during the process of the detection rod (8) continuing to descend, the inner wall of the slot hole will squeeze the movable block (21). After being pressed, the movable block (21) will slide in the opening (34) and the rectangular groove (33), driving the vertical plate of the movable block (21) to slide, making the metal trigger plate (29) abut against the metal trigger ring (27). After the metal trigger ring (27) is turned on, it triggers the buzzer (10) to emit a sound through the cable (31); S3: When the detection rod (8) descends, the wiping block (20) will first contact the slot hole. The wiping block (20) can wipe clean the waste chips and the like in the slot hole; S4: When the detection rod (8) descends, the upper protection plate (5) drives the lower protection plate (9) to descend. When the drill bit (3) is drilling, the upper protection plate (5) and the lower protection plate (9) protect the position of the detection rod (8) to prevent the cutting fluid from entering the detection slot hole. As the drill bit (3) continues to penetrate, the upper protection plate (5) slides outside the lower protection plate (9) to ensure the smooth descent of the detection rod (8); S5: When the detection rod (8) follows the drill bit (3) in the reset state, the lower protection plate (9) always abuts against the top surface of the workpiece flywheel (6) under the action of the first spring (24). When the workpiece flywheel (6) is driven to rotate by the processing platform (2), the lower protection plate (9) can act as a scraper to scrape away the waste chips on the top surface of the workpiece flywheel (6).

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