A cutting device for processing metal parts for new energy vehicles

Abstract

This invention relates to the field of metal parts cutting technology and discloses a cutting device for processing metal parts for new energy vehicles. The device includes a base frame, a tailstock center connected to the top of the base frame, and a jaw chuck also located at the top of the base frame. A workpiece is connected between the tailstock center and the jaw chuck, and the tailstock center and jaw chuck are used to clamp the workpiece. A feed table is connected to the surface of the base frame, and a tool holder is connected to the top of the feed table. This cutting device for processing metal parts for new energy vehicles, through the coordinated action of a feedback component and a feed component, can achieve autonomous tool retraction to handle protrusions, ensuring consistent cutting depth under constant feed speed. It avoids the problem of sudden load increase or even tool breakage due to a sudden increase in cutting amount, significantly improving cutting accuracy and surface quality, reducing tool wear rate, and improving the stability and efficiency of the machining process. It is particularly suitable for the mass production of automotive metal parts.

Description

Technical Field

[0001] This invention relates to the field of metal parts cutting technology, and in particular to a cutting device for processing metal parts for new energy vehicles. Background Technology

[0002] In the machining of long, cylindrical automotive metal parts, the workpiece surface often develops protrusions due to residual debris and localized deformation. When these protrusions pass over the cutting tool, they cause a sudden increase in the instantaneous cutting depth, affecting machining accuracy and potentially leading to tool breakage due to the sudden increase in tool load. To address this issue, existing technologies have attempted to adjust the cutting depth through feedback mechanisms.

[0003] For example, existing technologies propose dynamically adjusting the cutting depth by detecting the torque or current data of the spindle servo motor and analyzing it through a control system. However, this approach relies on complex electronic control systems and sensors, which not only increases equipment costs but also introduces signal transmission and processing delays. It struggles to achieve instantaneous response in scenarios involving high-speed workpiece rotation, and for the minute protrusions commonly found in mass production of automotive parts, there is still room for improvement in adjustment accuracy and timeliness. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the existing technology has the disadvantage that the residue on the workpiece surface affects the cutting accuracy. To this end, we propose a cutting device for processing metal parts for new energy vehicles.

[0005] To achieve the above objectives, this application adopts the following technical solution: a cutting device for processing metal parts for new energy vehicles, comprising a base frame, a tailstock center connected to the top of the base frame, a jaw chuck also provided at the top of the base frame, a workpiece to be cut connected between the tailstock center and the jaw chuck, the tailstock center and the jaw chuck being used to clamp the workpiece to be cut, a feed table connected to the surface of the base frame, a tool holder connected to the top of the feed table, a feed assembly connected to one side of the tool holder, the feed assembly including a feed motor, a feed screw connected to the output end of the feed motor, a mounting base wrapped around the outer surface of the feed screw, a cutting tool embedded inside the mounting base, and a feedback rod fixedly connected to the bottom end of the cutting tool;

[0006] A stabilizing component is embedded at the bottom of the tool holder. The stabilizing component includes an extension rod, and a feedback component is connected to the surface of the extension rod. The feedback component includes a positioning plate, and the positioning plate and the extension rod are laterally slidably connected. A mounting sub-side plate is connected to one side of the positioning plate. A second transmission roller is embedded inside the mounting sub-side plate. A first support spring is connected to one side of the second transmission roller. A first transmission roller is connected to the side of the first support spring away from the second transmission roller. A third transmission roller is embedded inside the mounting sub-side plate. A transmission belt is sleeved on the surfaces of the first, second, and third transmission rollers. A second support spring is embedded inside the mounting sub-side plate and is supported on the central axis of the third transmission roller. A mounting main side plate is connected to the other side of the mounting sub-side plate.

[0007] A spring rod is connected between the first drive roller and the third drive roller, and a top block is connected to the center of the spring rod. The top block corresponds to the feedback rod.

[0008] Preferably, the bottom end of the cutting tool is embedded inside the mounting base, the cutting tool and the mounting base are movably connected, and a spring is provided on one side of the back of the cutting tool to support the cutting tool.

[0009] Preferably, the top end of the extension rod is connected to an arc-shaped groove, the arc-shaped groove is arc-shaped, a positioning ring is embedded inside the arc-shaped groove, and the arc-shaped groove and the positioning ring are movably connected.

[0010] Preferably, there are two sets of arc-shaped grooves and positioning rings, and a scraper is connected between the two sets of arc-shaped grooves. The scraper is used to remove residual debris from the surface of the workpiece.

[0011] Preferably, the positioning ring is sleeved on the surface of the workpiece being cut, and the workpiece is rotated by the tailstock center and the jaw chuck, during which the positioning ring rotates synchronously.

[0012] Preferably, the second drive roller passes through the interior of the mounting sub-side plate and the mounting main side plate, and the second drive roller is rotatably connected to the mounting main side plate and the mounting sub-side plate.

[0013] Preferably, the surfaces of the main mounting plate and the secondary mounting plate are provided with transverse grooves, and the secondary mounting plate and the transmission belt are embedded in the transverse grooves, with the transmission belt slidingly connected within the transverse grooves.

[0014] Preferably, the interior of the main mounting plate and the secondary mounting plate is further provided with a longitudinal groove, in which a second support spring is embedded and a third transmission roller is embedded.

[0015] Preferably, one end of the spring rod is connected to the first transmission roller, and the other end is connected to the third transmission roller, with the top block positioned in the middle of the spring rod.

[0016] Preferably, the movement of the mounting base drives the movement of the cutting tool and the feedback rod. The feedback rod pushes the top block, causing the spring rod to deflect to one side. After the deflection, the distance between the first transmission roller and the second transmission roller decreases, while the distance between the third transmission roller and the first and second transmission rollers increases.

[0017] The technical effects and advantages of this invention are as follows:

[0018] This invention, through the synergistic action of the feedback component and the feed component, enables the cutting tool to move synchronously when a protrusion appears on the surface of the workpiece. This is achieved through the linkage of the transmission belt, transmission roller, and other structures, allowing the tool to autonomously retract to cope with the protrusion. This ensures consistent cutting depth at a constant feed rate, avoiding the problem of sudden increase in tool load or even breakage due to a sudden increase in cutting amount. It significantly improves cutting accuracy and surface quality, reduces tool wear rate, and enhances the stability and efficiency of the machining process. It is especially suitable for the mass production of automotive metal parts. Attached Figure Description

[0019] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a front view structural diagram of the present invention;

[0022] Figure 3 This is a top view of the structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the feed motor and feed screw of the present invention;

[0024] Figure 5 This is a schematic diagram of the tool holder and cutting tool of the present invention;

[0025] Figure 6 This is a schematic diagram of the positioning ring and scraper of the present invention;

[0026] Figure 7 This is a schematic diagram of the cutting tool and arc-shaped groove of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the feedback rod and feedback component in contact state of the present invention;

[0028] Figure 9 This is a partial structural schematic diagram of the arc-shaped groove and positioning ring of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the present invention, showing the installation of the secondary side plate and the first transmission roller;

[0030] Figure 11 This is an exploded structural diagram of the feedback component of the present invention.

[0031] Legend: 11. Base frame; 12. Tailstock center; 13. Jaw chuck; 14. Feed table; 15. Workpiece to be cut; 16. Tool holder; 2. Feed assembly; 21. Feed motor; 22. Feed screw; 23. Cutting tool; 24. Mounting base; 25. Feedback rod; 3. Feedback assembly; 31. Main mounting plate; 32. Secondary mounting plate; 33. First support spring; 34. Second support spring; 35. Positioning plate; 36. First drive roller; 37. Second drive roller; 38. Third drive roller; 39. Drive belt; 3801. Top block; 3802. Spring rod; 4. Stabilizing assembly; 41. Extension rod; 42. Arc groove; 43. Positioning ring; 44. Scraper. Detailed Implementation

[0032] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0033] In the prior art, the decrease in accuracy caused by local bending due to local stress during the cutting of long cylindrical workpieces and the sudden increase in tool load or even breakage caused by the protrusion of the workpiece surface are all problems. In order to solve this problem, the positioning ring 43 in the feed assembly 2 forms effective support for the long cylindrical workpiece to suppress bending deformation.

[0034] In addition, by setting feedback component 3 and stabilization component 4, the tool moves synchronously when a protrusion appears on the workpiece surface, ensuring consistent cutting depth, avoiding tool overload, significantly improving the cutting accuracy and surface quality of long cylindrical workpieces, reducing tool wear rate, and improving the stability and efficiency of the machining process, which is especially suitable for mass production scenarios of automotive metal parts.

[0035] Reference Figures 1-11As shown, the present invention provides a technical solution: a cutting device for processing metal parts for new energy vehicles, including a base frame 11, a tailstock tip 12 connected to the top of the base frame 11, and a jaw chuck 13 also provided at the top of the base frame 11. A workpiece 15 is connected between the tailstock tip 12 and the jaw chuck 13. The tailstock tip 12 and the jaw chuck 13 are used to clamp the workpiece 15. A feed table 14 is connected to the surface of the base frame 11, and a tool holder 16 is connected to the top of the feed table 14. When processing the workpiece 15, the position of the workpiece 15 is fixed by the tailstock tip 12 and the jaw chuck 13. After being fixed, the cutting operation is performed. To avoid deformation or bending of the workpiece 15 during cutting due to its excessive length, which would be detrimental to cutting the workpiece 15, a stabilizing component 4 is provided to solve this problem. The specific operation is as follows:

[0036] A stabilizing component 4 is embedded at the bottom of the tool holder 16. The stabilizing component 4 includes an extension rod 41. An arc-shaped groove 42 is connected to the top of the extension rod 41. The arc-shaped groove 42 is arc-shaped. A positioning ring 43 is embedded inside the arc-shaped groove 42. The arc-shaped groove 42 and the positioning ring 43 are movably connected. There are two sets of arc-shaped grooves 42 and positioning rings 43. A scraper 44 is connected between the two sets of arc-shaped grooves 42. The scraper 44 is used to remove the residual debris on the surface of the workpiece 15. The positioning ring 43 is sleeved on the surface of the workpiece 15. The workpiece 15 is driven to rotate by the tailstock tip 12 and the jaw chuck 13. During the rotation, the positioning ring 43 is driven to rotate synchronously.

[0037] In this cutting device, the workpiece 15 and the positioning ring 43 are fitted together, meaning the positioning ring 43 is nested outside the workpiece 15. Simultaneously, the positioning ring 43 is rotatably connected to the arc-shaped groove 42, allowing the positioning ring 43 to rotate freely relative to the arc-shaped groove 42. During the cutting process, as the workpiece 15 rotates around its own axis, the positioning ring 43 rotates synchronously through the frictional force of the fitting, maintaining its rotation within the arc-shaped groove 42. When the cutting tool 23 contacts the outer surface of the workpiece 15 and performs the cutting operation, the tool's feed action applies a transverse cutting force to the workpiece 15. Because the workpiece 15 is a long cylindrical structure, its rigidity is insufficient to resist this transverse force. Without support, it is prone to bending deformation, leading to deviation of the cutting trajectory and a decrease in machining accuracy. At this time, the positioning ring 43 and the arc groove 42 provide support together and are set near the cutting area. Through the tight fit between the positioning ring 43 and the workpiece 15, the supporting force can be directly transmitted to the cutting point, effectively offsetting the bending moment caused by the transverse cutting force, thereby preventing the workpiece 15 from bending during the cutting process and ensuring the stability of the cutting trajectory.

[0038] During the cutting process, the stability of the workpiece 15 is fully guaranteed: with the support of the stabilizing component 4, bending of the workpiece 15 can be effectively avoided; in such a stable machining environment, the feed component 2 and the feedback component 3 work together to perform the cutting operation on the workpiece 15, and can deal with different problems that may occur during the cutting process accordingly. The specific operation is as follows:

[0039] A feed assembly 2 is connected to one side of the tool holder 16. The feed assembly 2 includes a feed motor 21, and a feed screw 22 is connected to the output end of the feed motor 21. A mounting base 24 is wrapped around the outer surface of the feed screw 22. A cutting tool 23 is embedded inside the mounting base 24, and the bottom end of the cutting tool 23 is embedded inside the mounting base 24. The cutting tool 23 and the mounting base 24 are movably connected. A spring is provided on one side of the back of the cutting tool 23 to support it. A feedback rod 25 is fixedly connected to the bottom end of the cutting tool 23. By providing a spring between the cutting tool 23 and the mounting base 24, a buffering effect is provided during the first tool setting, that is, when the cutting tool 23 first contacts the workpiece 15. This prevents the tool from directly impacting the workpiece 15 due to excessive feed speed during tool setting, thus avoiding the breakage of the cutting tool 23. The spring design provides a certain degree of buffering, thereby avoiding the problem of tool breakage during tool setting.

[0040] A feedback assembly 3 is connected to the surface of the extension rod 41. The feedback assembly 3 includes a positioning plate 35, which is laterally slidably connected to the extension rod 41. A mounting sub-side plate 32 is connected to one side of the positioning plate 35. A second transmission roller 37 is embedded inside the mounting sub-side plate 32. A first support spring 33 is connected to one side of the second transmission roller 37. A first transmission roller 36 is connected to the side of the first support spring 33 away from the second transmission roller 37. A third transmission roller 38 is embedded inside the mounting sub-side plate 32. A transmission belt 39 is sleeved on the surfaces of the first transmission roller 36, the second transmission roller 37, and the third transmission roller 38. A second support spring 34 is embedded inside the mounting sub-side plate 32. 4 is supported on the central axis of the third transmission roller 38. The other side of the mounting sub-side plate 32 is connected to the mounting main side plate 31. The second transmission roller 37 passes through the interior of the mounting sub-side plate 32 and the mounting main side plate 31. The second transmission roller 37 is rotatably connected to the mounting main side plate 31 and the mounting sub-side plate 32. The surfaces of the mounting main side plate 31 and the mounting sub-side plate 32 are provided with transverse grooves. The mounting sub-side plate 32 and the transmission belt 39 are embedded in the transverse grooves. The transmission belt 39 is slidably connected in the transverse grooves. The interior of the mounting main side plate 31 and the mounting sub-side plate 32 is also provided with longitudinal grooves. The second support spring 34 is embedded in the longitudinal grooves. The third transmission roller 38 is embedded in the longitudinal grooves.

[0041] A spring rod 3802 is connected between the first drive roller 36 and the third drive roller 38. A top block 3801 is connected to the center of the spring rod 3802. The top block 3801 corresponds to the feedback rod 25. One end of the spring rod 3802 is connected to the first drive roller 36, and the other end is connected to the third drive roller 38. The top block 3801 is located in the middle of the spring rod 3802. The movement of the mounting base 24 drives the movement of the cutting tool 23 and the feedback rod 25. The feedback rod 25 pushes the top block 3801, causing the spring rod 3802 to deflect to one side. After the deflection, the distance between the first drive roller 36 and the second drive roller 37 decreases, while the distance between the third drive roller 38 and the first drive roller 36 and the second drive roller 37 increases.

[0042] In the cutting operation of the workpiece 15, the feed motor 21 drives the feed screw 22 to rotate. When the feed screw 22 rotates, it drives the tool holder 16 to move forward. The forward and reverse rotation of the feed motor 21 realizes the tool holder 16 to advance and retract.

[0043] As the feed motor 21 continues to advance outward, the cutting blade 23 and the mounting base 24 gradually move towards the side of the workpiece 15. When the cutting blade 23 is about to contact the surface of the workpiece 15, the feedback rod 25 at the bottom of the cutting blade 23 will abut against the surface of the top block 3801. If the cutting blade 23 continues to advance, it will push the feedback rod 25 to continuously squeeze the top block 3801. When the top block 3801 is squeezed, it will deflect upward. When the top block 3801 deflects upward, it will cause the first transmission roller 36 to move towards the side of the second transmission roller 37, thereby shortening the distance between the first transmission roller 36 and the second transmission roller 37. At this time, the cutting blade 23 will contact the surface of the workpiece 15 for the first time. When the cutting blade 23 contacts the surface of the workpiece 15, the first tool setting is completed. As the cutting blade 23 advances to cut, the feed motor 21 rotates continuously, driving the cutting blade 23 to advance continuously.

[0044] The cutting operation is accomplished through friction between the workpiece 15 and the cutting tool 23. Most of the metal chips are directly detached from the workpiece, but a small portion remains. When these chips come into contact with the tool, the original cutting environment changes. This change in environment leads to a decrease in cutting accuracy and may even cause impact on the tool, resulting in a sudden increase in the tool's load. This can significantly affect the tool. Furthermore, if the surface of the workpiece 15 is not treated, metal residue may remain on its surface, which will affect the surface finish of the workpiece 15. When protrusions appear on the surface, tool setting is usually performed on the flatter side, which is equivalent to point-to-point tool setting. If protrusions appear, the tool will cut the protrusions when it comes into contact with them. During the cutting process, the cutting depth of the tool will be greater than the preset depth, which will increase tool wear and even cause tool breakage. To solve this problem, the feed component 2 and the feedback component 3 can detect the protrusions on the surface of the workpiece 15 in real time and push the tool accordingly based on the height of the protrusions, so that the cutting depth of the cutting tool 23 is always determined by the feed, and the cutting depth is consistent each time.

[0045] To meet the above conditions, the transmission belt 39 abuts against the surface of the workpiece 15. When the workpiece 15 rotates, it drives the transmission belt 39 to rotate. The rotation of the transmission belt 39 then drives the rotation of the first transmission roller 36, the second transmission roller 37, and the third transmission roller 38. When the transmission belt 39 presses against the protrusion, the protrusion pushes the transmission belt 39. The transmission belt 39 then feeds this action back to the first transmission roller 36, which in turn feeds it back to the mounting main side plate 31 and the mounting secondary side plate 32. At this point, the mounting main side plate 31 and the mounting secondary side plate 32... The secondary side plate 32 will move backward. When the main side plate 31 and the secondary side plate 32 are installed backward, they will push the feedback rod 25, and the feedback rod 25 will feed this feedback to the cutting tool 23, so the cutting tool 23 will also move backward. At this time, it will start to retract to avoid direct collision between the cutting tool 23 and the protrusion. Through the above feedback, the cutting tool 23 can autonomously retract to deal with the protrusion. During cutting, the feed motor 21 is constantly rotating, so the tool holder 16 will continuously advance forward. The advancing speed is constant, and the cutting depth is guaranteed.

[0046] When the cutting tool 23 encounters a protrusion, it retracts during the retraction process. The cutting tool 23 and the mounting base 24 slide relative to each other, achieving retraction through this relative sliding. A locking structure is provided between the cutting tool 23 and the mounting base 24, and a spring locks the tool in place. When the feedback rod 25 moves backward, the locking structure is released, and the cutting tool 23 retracts. When the feedback rod 25 moves forward, the cutting tool 23 also moves forward. When the cutting tool 23 returns to its initial position, the locking structure locks again. This method addresses the protrusion on the surface of the workpiece 15. Because the tool holder 16 continuously advances, the cutting depth on both the workpiece 15 and the protrusion is consistent, thus increasing cutting stability.

[0047] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A cutting device for machining metal parts of new energy vehicles, characterized in that, The utility model provides a cutting tool, including base frame, the top end of base frame is connected with tailstock centre, the top end of base frame is also provided with claw chuck, cutting workpiece is connected between tailstock centre and claw chuck, and tailstock centre and claw chuck are used to hold cutting workpiece, the surface of base frame is connected with feed platform, the top end of feed platform is connected with tool holder, one side of tool holder is connected with feed assembly, feed assembly includes feed motor, the output of feed motor is connected with feed screw rod, the outer surface of feed screw rod is wrapped with mounting seat, the inside of mounting seat is embedded with cutting tool, the bottom end of cutting tool is fixedly connected with feedback rod, the bottom end of tool holder is embedded with stabilizing assembly, stabilizing assembly includes extension rod, the surface of extension rod is connected with feedback assembly, feedback assembly includes positioning plate, positioning plate and extension rod are transversely slidably connected, one side of positioning plate is connected with installation secondary side plate, the inside of installation secondary side plate is embeddedly connected with second transmission roller, one side of second transmission roller is connected with first support spring, the side away from second transmission roller of first support spring is connected with first transmission roller, the inside of installation secondary side plate is embedded with third transmission roller, the surface of first transmission roller, second transmission roller and third transmission roller is sleeved with transmission belt, the inside of installation secondary side plate is embedded with second support spring, second support spring is supported on the central shaft of third transmission roller, the other side of installation secondary side plate is connected with installation main side plate, the top end of extension rod is connected with arc slot, the inside of arc slot is embedded with positioning ring, the arc slot and positioning ring are movably connected, the arc slot and positioning ring are provided with two groups, two groups of arc slot are connected with scraper, and the scraper is used for removing the debris remaining on the surface of cutting workpiece. The utility model provides a cutting tool, including base frame, the top end of base frame is connected with tailstock centre, the top end of base frame is also provided with claw chuck, cutting workpiece is connected between tailstock centre and claw chuck, and tailstock centre and claw chuck are used to hold cutting workpiece, the surface of base frame is connected with feed platform, the top end of feed platform is connected with tool holder, one side of tool holder is connected with feed assembly, feed assembly includes feed motor, the output of feed motor is connected with feed screw rod, the outer surface of feed screw rod is wrapped with mounting seat, the inside of mounting seat is embedded with cutting tool, the bottom end of cutting tool is fixedly connected with feedback rod, the bottom end of tool holder is embedded with stabilizing assembly, stabilizing assembly includes extension rod, the surface of extension rod is connected with feedback assembly, feedback assembly includes positioning plate, positioning plate and extension rod are transversely slidably connected, one side of positioning plate is connected with installation secondary side plate, the inside of installation secondary side plate is embeddedly connected with second transmission roller, one side of second transmission roller is connected with first support spring, the side away from second transmission roller of first support spring is connected with first transmission roller, the inside of installation secondary side plate is embedded with third transmission roller, the surface of first transmission roller, second transmission roller and third transmission roller is sleeved with transmission belt, the inside of installation secondary side plate is embedded with second support spring, second support spring is supported on the central shaft of third transmission roller, the other side of installation secondary side plate is connected with installation main side plate, the top end of extension rod is connected with arc slot, the inside of arc slot is embedded with positioning ring, the arc slot and positioning ring are movably connected, the arc slot and positioning ring are provided with two groups, two groups of arc slot are connected with scraper, and the scraper is used for removing the debris remaining on the surface of cutting workpiece. The utility model provides a cutting tool, including base frame, the top end of base frame is connected with tailstock centre, the top end of base frame is also provided with claw chuck, cutting workpiece is connected between tailstock centre and claw chuck, and tailstock centre and claw chuck are used to hold cutting workpiece, the surface of base frame is connected with feed platform, the top end of feed platform is connected with tool holder, one side of tool holder is connected with feed assembly, feed assembly includes feed motor, the output of feed motor is connected with feed screw rod, the outer surface of feed screw rod is wrapped with mounting seat, the inside of mounting seat is embedded with cutting tool, the bottom end of cutting tool is fixedly connected with feedback rod, the bottom end of tool holder is embedded with stabilizing assembly, stabilizing assembly includes extension rod, the surface of extension rod is connected with feedback assembly, feedback assembly includes positioning plate, positioning plate and extension rod are transversely slidably connected, one side of positioning plate is connected with installation secondary side plate, the inside of installation secondary side plate is embeddedly connected with second transmission roller, one side of second transmission roller is connected with first support spring, the side away from second transmission roller of first support spring is connected with first transmission roller, the inside of installation secondary side plate is embedded with third transmission roller, the surface of first transmission roller, second transmission roller and third transmission roller is sleeved with transmission belt, the inside of installation secondary side plate is embedded with second support spring, second support spring is supported on the central shaft of third transmission roller, the other side of installation secondary side plate is connected with installation main side plate, the top end of extension rod is connected with arc slot, the inside of arc slot is embedded with positioning ring, the arc slot and positioning ring are movably connected, the arc slot and positioning ring are provided with two groups, two groups of arc slot are connected with scraper, and the scraper is used for removing the debris remaining on the surface of cutting workpiece.

2. The cutting device for machining new energy vehicle metal parts according to claim 1, characterized in that: The utility model provides a cutting tool, including base frame, the top end of base frame is connected with tailstock centre, the top end of base frame is also provided with claw chuck, cutting workpiece is connected between tailstock centre and claw chuck, and tailstock centre and claw chuck are used to hold cutting workpiece, the surface of base frame is connected with feed platform, the top end of feed platform is connected with tool holder, one side of tool holder is connected with feed assembly, feed assembly includes feed motor, the output of feed motor is connected with feed screw rod, the outer surface of feed screw rod is wrapped with mounting seat, the inside of mounting seat is embedded with cutting tool, the bottom end of cutting tool is fixedly connected with feedback rod, the bottom end of tool holder is embedded with stabilizing assembly, stabilizing assembly includes extension rod, the surface of extension rod is connected with feedback assembly, feedback assembly includes positioning plate, positioning plate and extension rod are transversely slidably connected, one side of positioning plate is connected with installation secondary side plate, the inside of installation secondary side plate is embeddedly connected with second transmission roller, one side of second transmission roller is connected with first support spring, the side away from second transmission roller of first support spring is connected with first transmission roller, the inside of installation secondary side plate is embedded with third transmission roller, the surface of first transmission roller, second transmission roller and third transmission roller is sleeved with transmission belt, the inside of installation secondary side plate is embedded with second support spring, second support spring is supported on the central shaft of third transmission roller, the other side of installation secondary side plate is connected with installation main side plate, the top end of extension rod is connected with arc slot, the inside of arc slot is embedded with positioning ring, the arc slot and positioning ring are movably connected, the arc slot and positioning ring are provided with two groups, two groups of arc slot are connected with scraper, and the scraper is used for removing the debris remaining on the surface of cutting workpiece.

3. The cutting device for processing new energy vehicle metal fittings according to claim 1, characterized in that: The utility model provides a cutting tool, including base frame, the top end of base frame is connected with tailstock centre, the top end of base frame is also provided with claw chuck, cutting workpiece is connected between tailstock centre and claw chuck, and tailstock centre and claw chuck are used to hold cutting workpiece, the surface of base frame is connected with feed platform, the top end of feed platform is connected with tool holder, one side of tool holder is connected with feed assembly, feed assembly includes feed motor, the output of feed motor is connected with feed screw rod, the outer surface of feed screw rod is wrapped with mounting seat, the inside of mounting seat is embedded with cutting tool, the bottom end of cutting tool is fixedly connected with feedback rod, the bottom end of tool holder is embedded with stabilizing assembly, stabilizing assembly includes extension rod, the surface of extension rod is connected with feedback assembly, feedback assembly includes positioning plate, positioning plate and extension rod are transversely slidably connected, one side of positioning plate is connected with installation secondary side plate, the inside of installation secondary side plate is embeddedly connected with second transmission roller, one side of second transmission roller is connected with first support spring, the side away from second transmission roller of first support spring is connected with first transmission roller, the inside of installation secondary side plate is embedded with third transmission roller, the surface of first transmission roller, second transmission roller and third transmission roller is sleeved with transmission belt, the inside of installation secondary side plate is embedded with second support spring, second support spring is supported on the central shaft of third transmission roller, the other side of installation secondary side plate is connected with installation main side plate, the top end of extension rod is connected with arc slot, the inside of arc slot is embedded with positioning ring, the arc slot and 4. The cutting device for processing new energy vehicle metal fittings according to claim 3, characterized in that: ​ 5. The cutting device for processing new energy vehicle metal fittings according to claim 4, characterized in that: The positioning ring is sleeved on the surface of a cutting workpiece, and the cutting workpiece is driven to rotate by a tailstock top and a claw chuck, and the positioning ring is driven to rotate synchronously during rotation.

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