Adjustable multi-angle trimming and deburring device for automobile part machining

Abstract

The invention relates to the technical field of automobile part manufacturing, discloses an adjustable multi-angle trimming and deburring device for automobile part machining, and provides a scheme that a trimming machine tool is matched with a multi-angle trimming mechanism to solve the problems that in the prior art, the clearing efficiency of flashes and burrs at a center hole and a heat dissipation groove of a brake disc is low, and positioning is not accurate. According to the device, a four-jaw chuck is driven by a driving motor to rotate a brake disc, a ball screw, a movable block, a connecting rod and other assemblies are utilized, four sets of trimming cutters synchronously trim a center hole, the inner side, the outer side and the bottom face corners of a heat dissipation groove correspondingly, a buffering inserting rod and a spring are combined to absorb impact, and precise operation of the cutters is guaranteed through the design of a deflection rotating shaft, a magnet and the like. According to the scheme, burrs at multiple positions are cleaned at a time, clamping errors are eliminated, energy consumption and cutter abrasion are reduced, the structure is compact, the device is suitable for automatic trimming of brake discs of different sizes, and the machining efficiency and precision are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts manufacturing, in particular to an adjustable multi-angle trimming and deburring device for processing automobile parts. Background Art

[0002] In the automotive parts manufacturing industry, brake discs are critical safety components, and their machining quality directly impacts vehicle braking performance. Conventional brake disc casting produces numerous burrs, primarily concentrated in complex structural areas such as the center hole and the inner and outer openings of the heat sink. These burrs not only degrade the product's appearance but can also cause abnormal braking noise and even compromise heat dissipation.

[0003] Existing technologies typically use manual grinding or a single trimming tool for processing, which has the following drawbacks: manual grinding is inefficient and has inconsistent quality; a single tool cannot simultaneously handle burrs at different angles; rigid contact can easily damage the tool and workpiece; and simultaneous trimming of the inside and outside of the center hole is impossible. Especially for brake discs with complex heat dissipation slot structures, traditional trimming equipment often requires multiple clamping and tool changes, resulting in low processing efficiency and difficulty in ensuring consistent trimming quality across all parts. Furthermore, the lack of an effective buffering protection mechanism during the trimming process makes it easy for the equipment to be damaged due to rigid contact between the tool and the workpiece. These issues severely restrict the efficiency and quality stability of mass production of brake discs.

[0004] In view of the above problems, the existing technology is in urgent need of improvement. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing jewelry measuring technology in the prior art has the disadvantage of easily causing damage to jewelry. For this reason, we propose an adjustable multi-angle trimming and deburring device for automobile parts processing.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: an adjustable multi-angle trimming and deburring device for processing automobile parts, comprising: a trimming machine tool, the trimming machine tool serves as the basic bearing structure of the entire equipment, provides a stable mounting platform for other components, and ensures the stability of the equipment during operation. A driving motor is fixedly installed on the trimming machine tool, and the driving motor serves as a power source to provide power for the rotation of the brake disc, and drives a four-jaw chuck through a transmission connection. The four-jaw chuck can accurately clamp brake discs to be processed of different specifications and shapes, ensuring that the brake disc is fixed in position during the processing and will not be displaced. The trimming machine tool is also provided with a slide rail, which provides a linear sliding track for the slide seat, ensuring that the slide seat has accurate direction and smooth operation during movement. A slide seat is slidably connected to the slide rail, and the slide seat is used to carry the multi-angle trimming mechanism and can flexibly move on the slide rail to adjust the relative position between the multi-angle trimming mechanism and the brake disc. The multi-angle trimming mechanism is fixedly installed on the slide seat; The multi-angle trimming mechanism includes a buffer rod, one end of the buffer rod is inserted into the slide seat, and the other end of the buffer rod is rotatably connected to a ball screw, the buffer rod serves to connect the slide seat and the ball screw, and can provide buffering when subjected to external force impact, so as to prevent the multi-angle trimming mechanism from being damaged due to excessive force, the end of the ball screw is fixedly connected to a fixed end head, the fixed end head is used to install and fix the first trimming knife and other components, and at the same time provide a positioning reference for the multi-angle trimming mechanism inside the brake disc, four sets of deflection shafts are arranged around the fixed end head, the deflection shaft provides a rotation fulcrum for the first trimming knife, so that the first trimming knife can flexibly adjust the angle according to the contact with the inner wall of the brake disc, and the deflection shaft is rotatably connected to the first trimming knife; The ball screw outer sleeve is provided with a first movable block, which plays the role of auxiliary support and guidance, and can guide the second movable block to move along the ball screw when the ball screw rotates. A second movable block is provided on one side of the first movable block, and the second movable block is transmission-connected to the ball screw through a ball nut. Driven by the ball screw, the second movable block can make a linear motion along the ball screw, thereby driving the second trimming knife to approach or move away from the brake disc. The first movable block is rotatably connected to the first connecting rod, and the second movable block is rotatably connected to the second connecting rod. The first connecting rod and the second connecting rod constitute a connecting rod mechanism, and through the rotation cooperation of the two, the motion conversion of the second trimming knife in the axial and radial directions can be realized, and the ends of the first connecting rod and the second connecting rod are rotatably connected to the second trimming knife together; A third movable block is provided on one side of the second movable block, and the third movable block is sleeved on the outside of the ball screw. The third movable block also performs axial movement under the drive of the ball screw, and under the action of the spring, can drive the third trimming knife to achieve axial and radial compound movement. A fourth movable block is provided on one side of the third movable block, and the fourth movable block is transmission-connected to the fourth movable block through a ball nut. The fourth movable block moves under the drive of the ball screw, and at the same time, under the action of the spring force, cooperates with the third movable block to accurately control the movement trajectory of the third trimming knife. The third movable block is rotatably connected to the third connecting rod, and the fourth movable block is rotatably connected to the fourth connecting rod. The linkage mechanism composed of the third connecting rod and the fourth connecting rod can realize the precise trimming operation of the third trimming knife at different positions inside the brake disc, and the ends of the third connecting rod and the fourth connecting rod are jointly rotatably connected to the third trimming knife.

[0007] Preferably, a limiting groove is processed on the buffer rod, and the buffer rod is engaged with the slide seat through the limiting groove. This engaging connection method can limit the rotation of the buffer rod in the slide seat, ensuring that the buffer rod only performs buffering movement in the axial direction. A first spring is also sleeved on the outside of the buffer rod, and the first spring is located between the buffer rod and the slide seat. When the ball screw is subjected to axial thrust, the buffer rod can compress the first spring, thereby avoiding damage to the multi-angle trimming mechanism, protecting the core components of the equipment, and extending the service life of the equipment.

[0008] Preferably, a center hole is provided in the center of the brake disc, and heat dissipation grooves are provided around the brake disc. The burrs on the brake disc during casting are mostly located at the center hole and the openings at both ends of the heat dissipation grooves. The design of the center hole and the heat dissipation grooves is the key structure for the brake disc to achieve its heat dissipation and installation functions. However, these parts are prone to burrs during the casting process, which affects the quality and performance of the brake disc, and therefore require special trimming treatment.

[0009] Preferably, the first trimming knife is L-shaped, the deflected rotation axis is located outside the corner of the first trimming knife, and the spacing between the long sides of the two relative groups of first trimming knives is smaller than the diameter of the center hole, and the spacing between the short sides of the two relative groups of first trimming knives is larger than the diameter of the center hole. Therefore, when the first trimming knife enters the center hole in the center of the brake disc, the short side of the first trimming knife will collide with the inner wall of the brake disc, thereby causing the first trimming knife to rotate around the deflected rotation axis, thereby causing the two blades of the first trimming knife to contact the corners on both sides of the center hole respectively. This design enables the first trimming knife to automatically adapt to the shape of the center hole, and does not require a complicated adjustment mechanism to achieve efficient cleaning of burrs on the corners of the center hole, thereby improving trimming efficiency and quality.

[0010] Preferably, a central magnet is fixedly connected to the fixed end head, so that the central magnet can attract the first steel trimming knife, so that the long side of the first trimming knife moves closer to the center, avoiding affecting the first trimming knife from entering the center hole in the center of the brake disc. When the equipment is not working or the first trimming knife is moving, the attraction of the central magnet can maintain the stability of the first trimming knife, prevent it from accidentally shaking or interfering, and ensure the safety and reliability of the equipment operation.

[0011] Preferably, a first replaceable trimming blade is fixedly connected to the second trimming knife, and the first replaceable trimming blade is L-shaped, with the short side of the first replaceable trimming blade being in contact with the bottom surface of the brake disc, and the long side of the first replaceable trimming blade being in contact with the side surface of the brake disc, thereby cleaning the burrs at the bottom corners of the brake disc and the outer opening of the heat dissipation groove. The L-shaped first replaceable trimming blade can trim multiple parts of the bottom and side surfaces of the brake disc at the same time, reducing the trimming process and improving the trimming efficiency. In addition, by replacing the worn first replaceable trimming blade, the maintenance cost of the equipment can be reduced.

[0012] Preferably, a second replaceable trimming blade is fixedly connected to the third trimming knife, and the second replaceable trimming blade is L-shaped. The second replaceable trimming blade fits against the inner wall of the brake disc, thereby cleaning the burrs on the inner wall of the brake disc and the inner opening of the heat dissipation groove. The shape and position design of the second replaceable trimming blade enable it to penetrate into the complex inner opening of the heat dissipation groove inside the brake disc, accurately remove the burrs that are difficult to clean, and ensure the quality of the internal structure of the brake disc.

[0013] Preferably, a first gear is provided at the end of the first connecting rod, and a second gear is provided at the end of the second connecting rod. The first gear and the second gear are meshed with each other, thereby ensuring that the first connecting rod and the second connecting rod always rotate synchronously, thereby ensuring that the angle of the second trimming knife remains unchanged. This gear transmission structure can accurately transmit motion, ensure the stability and accuracy of the second trimming knife during the trimming process, and avoid unstable trimming quality due to angle changes. A third gear is provided at the end of the third connecting rod, and a fourth gear is provided at the end of the fourth connecting rod. The third gear and the fourth gear are meshed with each other, thereby ensuring that the third connecting rod and the fourth connecting rod always rotate synchronously, thereby ensuring that the angle of the third trimming knife remains unchanged, ensuring that the third trimming knife can always maintain the correct cutting angle when performing trimming operations inside the brake disc, thereby improving the trimming effect.

[0014] Preferably, one end of the buffer rod is fixedly connected to four rotation limit rods, the rotation limit rod is parallel to the ball screw, the rotation limit rod passes through the second movable block and the third movable block, and the second movable block and the third movable block are slidingly connected to the rotation limit rod, and the ends of the four rotation limit rods are fixedly connected to a connecting disk, which is rotatably connected to the ball screw, and the connecting disk is used to reinforce the four rotation limit rods to enhance the overall stability of the rotation limit rod, and the four rotation limit rods limit the rotation of the second movable block and the third movable block, so that when the ball screw rotates, the second movable block and the third movable block can move along the ball screw, ensuring that the movement direction of the second movable block and the third movable block is accurate, and avoiding trimming position deviation due to rotation.

[0015] Preferably, a second spring is provided between the second movable block and the third movable block, a third spring is provided between the third movable block and the fourth movable block, and a fourth spring is provided between the fourth movable block and the connecting disk. In this way, when the ball screw rotates, the third movable block will push the fourth movable block through the third spring, and the connecting disk will also generate a thrust on the fourth movable block through the fourth spring. Therefore, under the action of the three groups of springs, the third movable block and the fourth movable block will move closer to each other while moving toward the brake disc, thereby pushing the third trimming knife closer to the inner wall of the brake disc through the connecting rod, and the second movable block will also compress The second spring approaches the third movable block, thereby driving the second trimming knife to approach the bottom surface of the brake disc. After the first replacement trimming blade of the second trimming knife contacts the bottom surface of the brake disc, the second trimming knife can no longer move axially. At this time, when the second movable block moves rapidly, it will drive the first connecting rod and the second connecting rod to rotate, thereby causing the second trimming knife to move radially and approach the outer edge of the brake disc. The setting of the spring can provide buffering and elastic force for the movement of each movable block, so that the trimming knife can adaptively adjust its position when approaching and contacting the brake disc, ensuring that the trimming knife fits closely to the surface of the brake disc and improving the trimming quality.

[0016] Technical effects and advantages of the present invention: The core technology of this solution has significant effects and outstanding advantages. Through the ingeniously designed multi-angle trimming mechanism, combined with buffer rods, springs, gear transmission and other structures, it can achieve efficient cleaning of burrs on the center hole of the brake disc, the bottom corners, and the inner and outer openings of the heat dissipation grooves, solving the problem of trimming complex parts after the brake disc is cast. Compared with traditional trimming methods, this solution does not require complex adjustment mechanisms and can automatically adapt to the shape of the brake disc. Multiple trimming knives work together to reduce the number of processes; high-precision transmission components and limit structures ensure trimming accuracy and stability; the replacement of trimming blades reduces maintenance costs, and structures such as spring buffering and magnet fixing effectively protect the equipment and workpieces, extend the service life of the equipment and operational safety, and significantly improve the quality and efficiency of brake disc trimming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosure of the present 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 the present invention. In the drawings, the same reference numerals are used to refer to the same components: Figure 1 This is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the slide structure of the present invention; Figure 3 This is a schematic diagram of the multi-angle trimming mechanism and brake disc structure of the present invention; Figure 4 This is a schematic structural diagram of the multi-angle trimming mechanism of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the multi-angle trimming mechanism and the brake disc of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the multi-angle trimming mechanism of the present invention; Figure 7 This is a schematic diagram of the second trimming knife driving structure of the present invention; Figure 8 This is a schematic diagram of the third trimming knife driving structure of the present invention; Figure 9 For the present invention Figure 5 A in the middle is an enlarged structural diagram; Figure 10 This is a schematic diagram of the rotating structure of the first trimming knife of the present invention; Figure 11 This is a schematic diagram of the brake disc structure of the present invention.

[0018] Legend: 1. Trimming machine; 2. Drive motor; 3. Four-jaw chuck; 4. Brake disc; 401. Center hole; 402. Heat sink; 5. Slide rail; 6. Slide seat; 7. Multi-angle trimming mechanism; 8. Buffer rod; 801. Limiting groove; 9. First spring; 10. Ball screw; 11. Fixed end; 12. Deflection shaft; 13. First trimming knife; 14. Center magnet; 15. First movable block; 16. Second movable block; 17. First connecting rod; 17 01. First gear; 18. Second connecting rod; 1801. Second gear; 19. Second trimming knife; 20. First replaceable trimming blade; 21. Third movable block; 22. Fourth movable block; 23. Third connecting rod; 2301. Third gear; 24. Fourth connecting rod; 2401. Fourth gear; 25. Third trimming knife; 26. Second replaceable trimming blade; 27. Rotation limit rod; 28. Connecting plate; 29. ​​Second spring; 30. Third spring; 31. Fourth spring. DETAILED DESCRIPTION

[0019] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0020] In the prior art, it is easy for burrs to form at the center hole 401 and the opening of the heat dissipation slot 402 during the casting process of the brake disc 4. Traditional trimming equipment usually uses a single tool for step-by-step processing, and it is impossible to clean multiple complex parts at the same time. The problem of insufficient positioning accuracy of the trimming mechanism is common in the field of mechanical processing. When the tool contacts the workpiece, it is easy to produce rigid impact, resulting in increased tool wear. Some automated equipment attempts to achieve complex contour processing through multi-axis linkage, but it has defects such as complex structure and high maintenance cost, and it is difficult to adapt to the special processing requirements of thin-walled annular workpieces such as the brake disc 4.

[0021] To address these issues, researchers discovered the need for a device capable of simultaneously removing burrs on both the inner and outer sides of the center hole 401 and the sides of the heat sink 402. By analyzing the structural features of the brake disc 4, they realized that the geometric differences between the center hole 401 and the heat sink 402 precluded conventional tools from simultaneously adapting to the disc. During their research, they discovered that utilizing the kinetic energy of the rotating workpiece to drive the trimming mechanism could simplify the powertrain design. The key breakthrough lay in achieving automatic radial position adjustment of multiple trimming tools during axial advancement, while also establishing an effective buffering and protection mechanism.

[0022] Therefore, the present application proposes a device comprising a trimming machine 1, referring to Figures 1-11The trimming machine 1 is fixedly installed with a drive motor 2, which is connected to a four-jaw chuck 3 for clamping a brake disc 4. A slide 6 is slidably connected to the slide rail 5, and a multi-angle trimming mechanism 7 is fixedly installed on the slide 6. The mechanism includes a buffer rod 8 inserted into the slide 6, the other end of which is rotatably connected to a ball screw 10. The end of the ball screw 10 is fixedly connected to a fixed end 11 with four sets of deflected shafts 12, and the deflected shafts 12 are rotatably connected to a first trimming knife 13. A first movable block 15 and a second movable block 16 are arranged outside the ball screw 10, and the second movable block 16 is connected to the ball screw 10 through a ball nut. The first movable block 15 is rotatably connected to the first connecting rod 17, and the second movable block 16 is rotatably connected to the second connecting rod 18. The ends of the two connecting rods are rotatably connected to the second trimming knife 19. The third movable block 21 and the fourth movable block 22 are sleeved on the outside of the ball screw 10 and are respectively connected to the third trimming knife 25 through connecting rods.

[0023] Among them, the buffer rod 8 is engaged with the slide 6 through the limit groove 801, and the external first spring 9 realizes axial buffering to absorb the impact energy when the tool contacts the workpiece. The ball screw 10 converts the rotational motion into linear motion, driving the movable block to move axially. The deflected shaft 12 allows the first trimming knife 13 to deflect at an angle when contacting the workpiece, so that the cutting edge automatically fits the edge of the center hole 401. The matching design of the movable block and the connecting rod can convert the axial displacement into radial motion, and control the feed trajectory of the second trimming knife 19 and the third trimming knife 25. The four groups of trimming knives correspond to different processing parts of the brake disc 4, forming a three-dimensional trimming system.

[0024] Specifically, after the brake disc 4 is clamped, it rotates with the four-jaw chuck 3, and the slide 6 is pushed along the slide rail 5 to allow the fixed end 11 to enter the center hole 401. When the first trimming knife 13 contacts the hole wall, it deflects around the deflection axis 12, and the double-edged blades simultaneously process the burrs inside and outside the hole mouth. The driving motor 2 drives the second movable block 16 to move axially through the ball screw 10, and the second trimming knife 19 expands radially under the action of the connecting rod to process the burrs on the bottom corners and the outside of the heat dissipation groove 402. The third movable block 21 moves synchronously to drive the third trimming knife 25 to expand radially to clean the burrs on the inner wall and the inside of the heat dissipation groove 402. When each trimming knife reaches the set position, the ball screw 10 self-locks to form a rigid cutting state, and the rotating workpiece and the fixed tool produce relative motion to complete the trimming. When retracting, the first spring 9 reset mechanism restores each component to its initial position.

[0025] Compared to existing technologies, this solution achieves multi-tool collaborative operation through mechanical linkage, avoiding the control complexity associated with multiple power sources. Utilizing the workpiece's rotational kinetic energy to drive the trimming mechanism significantly reduces energy consumption. The combination of a buffer rod 8 and a first spring 9 effectively absorbs the impact load at the moment of tool contact, extending tool life. The coordinated design of four movable blocks and connecting rods achieves multi-dimensional motion under a single-axis drive, ensuring that each trimming tool precisely reaches its intended processing position.

[0026] Through the above-mentioned technical solution, the present application achieves simultaneous trimming of the center hole 401, the inner and outer sides of the heat dissipation slot 402, and the bottom corners of the brake disc 4, eliminating the multiple clamping errors associated with traditional processes. A mechanical linkage ensures precise alignment of the trimming cutter trajectories, preventing overcutting or undercutting. A buffer mechanism reduces operational shock and improves process stability. The overall structure is compact and suitable for automated trimming of brake discs 4 of varying sizes.

[0027] The present application further proposes that a limiting groove 801 is processed on the buffer rod 8, and the buffer rod 8 is engaged with the slide 6 through the limiting groove 801. A first spring 9 is also sleeved on the outside of the buffer rod 8, and the first spring 9 is located between the buffer rod 8 and the slide 6. When the ball screw 10 is subjected to axial thrust, the buffer rod 8 can compress the first spring 9, thereby avoiding damage to the multi-angle trimming mechanism 7.

[0028] The limiting groove 801 is a longitudinal groove structure provided on the surface of the buffer rod 8. Specifically, it can be formed by milling. Its width matches the limiting protrusion inside the slide 6 and is used to limit the axial movement range of the buffer rod 8. The snap-fit ​​connection refers to the limiting protrusion provided inside the slide 6 being embedded in the limiting groove 801, forming a sliding pair. For example, a clearance fit can be used to achieve axial sliding freedom while limiting circumferential rotation. The first spring 9 is a helical compression spring, with its ends respectively abutting the flange of the buffer rod 8 and the end face of the slide 6. When the ball screw 10 is subjected to an external impact load, the spring is compressed to absorb energy.

[0029] Specifically, when the multi-angle trimming mechanism 7 advances toward the center hole 401 of the brake disc 4, the ball screw 10 may generate an axial reaction force due to contact with the inner wall of the brake disc 4. At this time, the buffer rod 8 slides along the direction of the limit groove 801, and the first spring 9 is compressed, causing the ball screw 10 to generate axial displacement buffering. The engagement structure between the limit groove 801 and the slide 6 can prevent the buffer rod 8 from detaching from the slide 6, while limiting its maximum compression stroke. For example, when the first trimming knife 13 contacts the inner wall of the brake disc 4, the thrust exerted on the ball screw 10 is transmitted to the first spring 9 through the buffer rod 8, thereby preventing the tool from breaking due to rigid collision.

[0030] Compared to existing technologies, traditional trimming mechanisms lack an axial buffer, making it susceptible to deformation or damage to transmission components due to impact loads when the tool contacts the workpiece. This solution utilizes the synergistic effect of the first spring 9 and the limiting groove 801 to convert impact energy into the spring's elastic potential energy, while also protecting key components through mechanical limiting.

[0031] Through the above technical solution, the present application effectively reduces the risk of rigid collision between the tool and the workpiece during the trimming process, extends the service life of the multi-angle trimming mechanism 7, and ensures that the trimming tool can still maintain the predetermined working position after being impacted, avoiding the reduction in processing accuracy due to displacement deviation.

[0032] This application further proposes that a center hole 401 is opened in the center of the brake disc 4 in the smart jewelry three-dimensional dimension measuring instrument, and heat dissipation grooves 402 are opened around the brake disc 4. The burrs on the brake disc 4 during casting are mostly located at the center hole 401 and the openings at both ends of the heat dissipation grooves 402.

[0033] The center hole 401 is a circular through-hole located at the center of the brake disc 4. It can be machined and used to mount a shaft or other fixed components. This structure makes it easy for burrs to form on the edge of the hole where the core supports it during casting. The heat dissipation slots 402 are elongated grooves distributed along the outer circumference of the brake disc 4. They can be integrally formed using a casting process to increase the heat dissipation area. Due to the complex core structure, flash is easily generated on both sides of the slots during demolding.

[0034] Specifically, after the brake disc 4 is clamped by the four-jaw chuck 3, the multi-angle trimming mechanism 7 moves along the slide rail 5 to the center hole 401. When the first trimming blade 13 enters the center hole 401, its short side contacts the hole wall, causing the blade to rotate and fit the inner and outer corners. The second trimming blade 19 is adjusted to the bottom edge of the brake disc 4 via a connecting rod mechanism. The L-shaped structure of the first replacement trimming blade 20 simultaneously removes burrs from the bottom corners and the outside of the heat sink 402. The third trimming blade 25 is pushed against the inner wall of the brake disc 4 by the first spring 9, while the second replacement trimming blade 26 covers the inner opening of the heat sink 402. Driven by the ball screw 10, the three sets of trimming blades form a composite axial and radial motion, acting simultaneously on the three burr-concentrated areas at the inner and outer ends of the center hole 401 and the heat sink 402.

[0035] Compared to existing technologies, traditional deburring equipment typically requires processing burrs at different locations in separate steps, such as processing the center hole 401 first and then the heat sink 402, or using different tools to remove burrs on the inside and outside. This solution uses a multi-angle linkage mechanism to achieve simultaneous deburring at three key locations, avoiding positioning errors caused by multiple clamping. The first spring 9 also provides a buffer mechanism to prevent the deburring blade from over-pressing the workpiece.

[0036] Through the above technical solution, the present application effectively solves the technical problem of simultaneous cleaning of burrs at multiple positions of a complex structure brake disc 4, especially for the flash problem at the opening of the center hole 401 and the heat dissipation groove 402 caused by the core structure during the casting process. The integrity and consistency of burr removal are ensured through a specific trimming knife layout, avoiding assembly interference or subsequent processing accuracy problems caused by residual burrs.

[0037] The present application further proposes an adjustable multi-angle trimming and deburring device for processing automotive parts, comprising a trimming machine 1, a drive motor 2, a four-jaw chuck 3, a slide rail 5, a slide seat 6, and a multi-angle trimming mechanism 7. In the multi-angle trimming mechanism 7, the first trimming blade 13 is L-shaped, the deflection shaft 12 is located outside the corner of the first trimming blade 13, the spacing between the long sides of two opposing groups of first trimming blades 13 is less than the diameter of the center hole 401, and the spacing between the short sides of two opposing groups of first trimming blades 13 is greater than the diameter of the center hole 401.

[0038] An L-shaped trimming blade has a blade body with mutually perpendicular long and short sides. Specifically, it can be made of a high-hardness alloy material, and angle adjustment is achieved via a deflected shaft 12 at the corner. This structure allows the trimming blade to rotate after the short side contacts the inner wall when entering the center hole 401, thereby aligning the cutting edge with the burr area. The deflected shaft 12 is a pivot point located at the outer corner of the L-shaped trimming blade. Specifically, it can be implemented using a miniature bearing, which is used to constrain the trimming blade's rotational freedom within a single plane. This design ensures that the trimming blade rotates only around a specific axis when subjected to external forces, avoiding motion interference. The long side spacing being smaller than the diameter of the center hole 401 means that the distance between the long side ends of the two sets of opposing trimming blades is slightly smaller than the inner diameter of the hole to be machined, and can be set to be 0.5-2 mm smaller than the hole diameter. This dimensional relationship ensures that the long sides of the trimming blades do not contact the hole wall when entering the center hole 401, with only the short sides acting as a trigger mechanism. The "short side spacing greater than the diameter of the center hole 401" means that the distance between the short side ends of the two sets of opposing trimming blades is slightly greater than the inner diameter of the hole to be machined, specifically 1-3 mm greater than the hole diameter. This dimensional relationship ensures that the short sides of the trimming blades will inevitably contact the hole wall after entering the center hole 401, triggering the rotation action.

[0039] Specifically, as the trimming mechanism moves toward the center hole 401 of the brake disc 4, the long side of the L-shaped trimming cutter passes through the center hole 401 in a retracted state. When the short side contacts the inner wall of the hole, the collision force propels the trimming cutter to rotate about the deflection axis 12. At this point, the long side's cutting edge expands outward to contact the burrs on the outside of the hole, while the short side's cutting edge expands inward to contact the burrs on the inside of the hole. During this process, the first spring 9 within the buffer rod 8 absorbs excess impact, preventing damage to the cutter due to rigid collisions. After the trimming cutter completes angle adjustment, the rotation of the brake disc 4 drives the trimming cutter to synchronously cut burrs on both the inside and outside of the hole.

[0040] Compared to existing technologies, traditional trimming tools are mostly fixed-angle designs, requiring separate treatment of burrs on the inside and outside of the hole, requiring multiple adjustments during operation. However, this solution utilizes an L-shaped cutter body and coordinated dimensions, allowing a single tool to automatically locate and remove burrs on both the inside and outside of the hole in a single pass, significantly reducing the number of machining steps.

[0041] Through the above-mentioned technical solution, the present application achieves simultaneous deburring of both the inner and outer sides of the center hole 401 of the brake disc 4, eliminating the need for repeated tool angle adjustment in traditional processes. This more than doubles the deburring efficiency while maintaining machining accuracy. This design also avoids the use of complex active control systems through a passive adjustment method triggered by collision, reducing equipment manufacturing costs and maintenance difficulties.

[0042] The present application further proposes that a central magnet 14 is fixedly connected to the fixed end 11, and the central magnet 14 can attract the first steel trimming knife 13, so that the long side of the first trimming knife 13 moves closer to the center, avoiding affecting the first trimming knife 13 from entering the center hole 401 in the center of the brake disc 4.

[0043] The central magnet 14 is a magnetic element mounted inside the fixed end 11, specifically a permanent magnet or an electromagnet. The magnetic field it generates exerts an attractive force on the steel trimming blade. The first steel trimming blade 13 is a blade made of ferromagnetic material, specifically high-carbon steel or alloy steel, whose magnetic permeability allows it to be attracted by magnets.

[0044] Specifically, as the multi-angle trimming mechanism 7 moves toward the center hole 401 of the brake disc 4, the central magnet 14 uses magnetic force to attract the long sides of the first trimming blades 13, causing them to contract toward the central axis. This increases the distance between the short sides of the two opposing sets of first trimming blades 13 to exceed the diameter of the center hole 401, thereby preventing the blades from rigidly colliding with the inner wall of the center hole 401. After the blades fully enter the center hole 401, the short sides of the first trimming blades 13 are squeezed and deflected by the inner wall of the brake disc 4. At this time, the magnetic force continues to act on the long sides, ensuring that the blades maintain a stable position during cutting. When the trimming mechanism retracts, the magnetic force continues to guide the long sides of the first trimming blades 13 back to their initial retracted state.

[0045] Compared with existing technologies, traditional trimming tools lack active adjustment mechanisms, making them prone to jamming or positioning errors when entering narrow holes due to improper tool expansion angles. This solution achieves dynamic tool retraction through magnetic attraction, adaptively adjusting the tool's spatial posture without the need for an additional drive mechanism.

[0046] Through the above technical solution, the present application realizes the automatic retraction function of the first trimming tool 13 when entering the center hole 401, effectively reducing the friction resistance between the tool and the workpiece, while ensuring the precise alignment of the tool and the burr contact surface during the cutting process, avoiding incomplete cutting or tool damage caused by tool offset.

[0047] The present application further proposes that a first replacement trimming blade 20 is fixedly connected to the second trimming knife 19, and the first replacement trimming blade 20 is L-shaped. The short side of the first replacement trimming blade 20 is in contact with the bottom surface of the brake disc 4, and the long side of the first replacement trimming blade 20 is in contact with the side surface of the brake disc 4, thereby cleaning the burrs at the bottom corners of the brake disc 4 and the outer opening of the heat dissipation groove 402.

[0048] The first replaceable trimming blade 20 is an L-shaped cutting component that can be removably mounted on the second trimming blade 19. Specifically, it can be made of cemented carbide and secured with bolts. Its vertical structure of short and long sides can simultaneously cover the bottom corners and side areas of the brake disc 4. The burr at the outer opening of the heat dissipation slot 402 refers to excess metal residue formed on the outer edge of the brake disc 4 by the core parting surface during the casting process. The long side of the L-shaped blade can be moved radially to precisely fit this area for cutting.

[0049] Specifically, when the second trimming blade 19 moves axially until the short side of the first replaceable trimming blade 20 contacts the bottom surface of the brake disc 4, the axial motion is blocked, triggering the linkage mechanism to cause the cutting edge to expand radially. At this point, the short side of the L-shaped cutting edge continuously presses against the bottom corner, while the long side slides along the outer side of the brake disc 4. This simultaneously rounds the bottom corner and removes burrs from the outer opening of the heat dissipation slot 402 as the disc 4 rotates. The replaceable cutting edge design allows for quick replacement of cutting components based on wear.

[0050] Compared to existing technologies, traditional brake disc trimming devices often use fixed single-edged tools, which cannot simultaneously remove irregular burrs on the bottom corners and side openings. This solution uses an L-shaped replaceable cutting edge and a linkage mechanism to achieve simultaneous removal of burrs in two perpendicular directions, avoiding positioning errors caused by multiple clamping.

[0051] Through the above technical solution, the present application effectively solves the technical problem of difficulty in simultaneously cleaning the composite burrs at the corners of the bottom surface of the brake disc 4 and the outer opening of the heat dissipation groove 402, significantly improves the trimming efficiency while ensuring the processing accuracy, and reduces the tool maintenance cost through modular cutting edge design.

[0052] The present application further proposes that a second replaceable trimming blade 26 is fixedly connected to the third trimming knife 25. The second replaceable trimming blade 26 is L-shaped and fits against the inner wall of the brake disc 4, thereby cleaning the burrs on the inner wall of the brake disc 4 and the inner opening of the heat dissipation groove 402.

[0053] The second replaceable trimming blade 26 is a detachable cutting component, specifically a carbide blade secured to the main body of the third trimming cutter 25 by bolts. This structure allows for quick replacement of the blade after wear. The L-shaped structure refers to the blade having two mutually perpendicular cutting surfaces, the short side of which is used to conform to the axial end face of the brake disc 4, and the long side of which is used to conform to the radial inner wall of the brake disc 4. This achieves double-sided synchronous trimming through geometric adaptation. The motion trajectory of the third trimming cutter 25 is controlled by a movable block and a connecting rod mechanism. Specifically, the ball screw 10 drives the movable block to move axially, and the first spring 9 pushes the connecting rod to change its radial position, so that the second replaceable trimming blade 26 always maintains contact pressure with the inner wall of the brake disc 4.

[0054] Specifically, as the ball screw 10 rotates, the third and fourth movable blocks 21 and 22, propelled axially by the first spring 9, simultaneously force the third trimming blade 25 radially outward via the coordinated action of the third and fourth connecting rods 23 and 24. During this process, the short L-shaped edge of the second replaceable trimming blade 26 first contacts the inner wall of the brake disc 4. As the radial movement increases, the long L-shaped edge gradually abuts the inner edge of the heat sink 402. Because the L-shaped profile of the second replaceable trimming blade 26 matches the inner wall of the brake disc 4 and the opening of the heat sink 402, as the brake disc 4 rotates, the blade simultaneously removes burrs from the inner wall surface and the flash inside the heat sink 402.

[0055] Compared with the existing technology, the traditional brake disc 4 trimming device usually adopts a single-direction cutting tool, and the burrs on the inner wall and the opening of the heat dissipation groove 402 need to be processed step by step. However, this solution uses the L-shaped three-dimensional cutting structure to replace the trimming blade. It can simultaneously complete the cleaning of burrs in two different directions in a single feed action, significantly reducing the time consumption of the processing process.

[0056] Through the above technical solution, the present application realizes the synchronous trimming processing of the complex inner cavity structure of the brake disc 4, and utilizes the geometric characteristics of the L-shaped blade to effectively cover the burr area of ​​the inner wall end face and the opening edge of the heat dissipation groove 402. At the same time, the maintenance efficiency problem caused by tool wear is solved through the detachable and replaceable blade structure.

[0057] The present application further proposes that one end of the buffer rod 8 is fixedly connected to four rotation limit rods 27, the rotation limit rod 27 is parallel to the ball screw 10, and the rotation limit rod 27 passes through the second movable block 16 and the third movable block 21. The second movable block 16 and the third movable block 21 are slidingly connected to the rotation limit rod 27. The ends of the four rotation limit rods 27 are fixedly connected to the connecting disk 28, and the connecting disk 28 is rotationally connected to the ball screw 10. The connecting disk 28 is used to reinforce the four rotation limit rods 27. The four rotation limit rods 27 limit the rotation of the second movable block 16 and the third movable block 21, so that when the ball screw 10 rotates, the second movable block 16 and the third movable block 21 can move along the ball screw 10.

[0058] The rotation limit rod 27 is a rigid guide rod parallel to the axis of the ball screw 10, specifically a stainless steel round rod. It penetrates the movable block and forms a sliding pair, which is used to limit the movable block's freedom of rotation about the screw axis, ensuring that the movable block moves only in the axial direction. The connecting plate 28 is an annular reinforcement structure provided at the end of the rotation limit rod 27. Specifically, it can be stamped from high-strength steel plate and fixed to the ends of the four rotation limit rods 27 by welding, forming a stable spatial frame structure to prevent the limit rods from deforming under stress.

[0059] Specifically, when the ball screw 10 rotates to drive the movable block to move, the rotating limit rod 27 forms a sliding constraint by passing through the holes of the second movable block 16 and the third movable block 21. Four symmetrically distributed limit rods form a rectangular guide frame, which effectively suppresses the circumferential deflection of the movable block during movement. The connecting disk 28 serves as a fixed node at the end of the limit rod, and prevents the limit rod from bending and deforming under axial load by increasing the structural rigidity. This structure allows the second movable block 16 and the third movable block 21 to only move in a straight line under the drive of the screw, ensuring that the moving trajectory of the trimming tool is precisely aligned with the axis of the brake disc 4.

[0060] Compared to existing technologies, the movable block of traditional trimming equipment relies solely on a lead screw thread pair for guidance. This can easily cause rotational deviation under high-speed motion or uneven force, resulting in reduced tool positioning accuracy. This solution uses a three-dimensional guide mechanism composed of four limit rods to form a dual constraint mechanism. This not only eliminates the movable block's rotational freedom, but also enhances structural rigidity through the connecting plate 28, fundamentally solving the problem of moving component deflection.

[0061] Through the above-mentioned technical solution, the present application achieves precise control of the moving trajectory of the movable block, ensuring that the second trimming blade 19 and the third trimming blade 25 always maintain the predetermined posture during axial movement. The symmetrical guide structure formed by the four limiting rods effectively disperses the motion load, avoiding wear of parts caused by localized stress concentration. At the same time, the reinforcement effect of the connecting plate 28 significantly improves the overall structural stability, ensuring the operational reliability of the equipment under continuous operation.

[0062] The present application further proposes that one end of the buffer rod 8 is fixedly connected to four rotation limit rods 27, the rotation limit rods 27 are parallel to the ball screw 10, the rotation limit rods 27 pass through the second movable block 16 and the third movable block 21, and the second movable block 16 and the third movable block 21 are slidingly connected to the rotation limit rods 27, and the ends of the four rotation limit rods 27 are fixedly connected to a connecting disk 28, which is rotationally connected to the ball screw 10, and the connecting disk 28 is used to reinforce the four rotation limit rods 27. The four rotation limit rods 27 limit the rotation of the second movable block 16 and the third movable block 21, so that when the ball screw 10 rotates, the second movable block 16 and the third movable block 21 can move along the ball screw 10.

[0063] Among them, the rotation limit rod 27 refers to a rigid rod arranged parallel to the ball screw 10, and can be made of stainless steel or carbon steel. It passes through the movable block and limits the freedom of the movable block to rotate around the axial direction. The movable block can only move along the axis of the ball screw 10 through a sliding connection. The connecting disk 28 refers to a disk-shaped structure fixedly connected to the ends of the four rotation limit rods 27. Specifically, it can be connected by welding or bolts to enhance the overall rigidity of the rotation limit rod 27 system and prevent the multi-rod structure from deforming due to uneven force. The rotation connection of the ball screw 10 refers to the relative rotation between the connecting disk 28 and the end of the ball screw 10 through a bearing or a bushing. Specifically, a deep groove ball bearing or a sliding bearing can be used to ensure the free rotation of the screw and maintain the fixed relationship between the connecting disk 28 and the limit rod.

[0064] Specifically, when the ball screw 10 rotates to drive the movable blocks, the rotation limit rods 27, which extend through holes in the second movable block 16 and the third movable block 21, constrain the movable blocks to translational movement along the screw axis. The four rotation limit rods 27 are symmetrically arranged to form a stable guide frame. The connecting plate 28 secures the ends of the four rods, providing rigid support and preventing distortion of the multi-rod structure due to screw torque. This structure ensures that the second movable block 16 and the third movable block 21 can only move in a linear manner when driven by the screw, eliminating tool positioning deviation caused by the rotation of the movable blocks and ensuring that the trimming tool always moves along the predetermined trajectory.

[0065] In some specific embodiments, the diameter of the rotation limit rod 27 can be 8-12 mm, and the length is determined by the screw stroke. For example, when the effective screw stroke is 200 mm, the limit rod length can be set to 250 mm. The thickness of the connecting plate 28 can be 10-15 mm, and the diameter is determined by the diameter distribution of the four limit rods. For example, when the limit rods are arranged in a square with a margin of 50 mm, the diameter of the connecting plate 28 can be set to 70 mm.

[0066] Compared to existing technologies, the movable block of traditional trimming mechanisms is driven solely by a screw nut, which can easily cause circumferential deviation at high speeds, leading to tool path deviation. This solution utilizes four rotating limit rods 27 to create a spatial guide mechanism, limiting the movable block's freedom to a single axial movement. Combined with the reinforcement provided by the connecting plate 28, this significantly improves motion stability. Compared to a single-rod limiter structure, the symmetrical four-rod layout evenly distributes the lateral forces generated by the screw torque, preventing unilateral wear on the guide structure.

[0067] Through the above-mentioned technical solution, this application effectively solves the technical problem of circumferential offset of the movable block during the screw drive process, ensuring that multiple sets of trimming tools move along a precise path and improving the uniformity of burr removal. The combined structure of the rotating limit rod 27 and the connecting plate 28 enhances the rigidity of the moving component, reduces the vibration amplitude during high-speed movement, and extends the service life of the equipment. This design also simplifies the motion control logic, achieving precise positioning of the tool by simply controlling the screw speed, thereby improving equipment reliability.

[0068] The present application further proposes to set a second spring 29 between the second movable block 16 and the third movable block 21, a third spring 30 between the third movable block 21 and the fourth movable block 22, and a fourth spring 31 between the fourth movable block 22 and the connecting plate 28. When the ball screw 10 rotates, the third movable block 21 pushes the fourth movable block 22 through the third spring 30, and the connecting plate 28 generates a thrust on the fourth movable block 22 through the fourth spring 31, so that the third movable block 21 and the fourth movable block 22 approach each other while moving toward the brake disc 4, and push the third trimming knife 25 toward the inner wall of the brake disc 4 through the connecting rod. At the same time, the second movable block 16 compresses the second spring 29 to approach the third movable block 21, driving the second trimming knife 19 to approach the bottom surface of the brake disc 4. After the second trimming knife 19 contacts the bottom surface of the brake disc 4, the second movable block 16 continues to move, driving the first connecting rod 17 and the second connecting rod 18 to rotate, causing the second trimming knife 19 to move radially.

[0069] Among them, the second spring 29 refers to an elastic element arranged between the second movable block 16 and the third movable block 21, which can be specifically implemented by a coil spring, and is used to buffer the relative movement between the second movable block 16 and the third movable block 21 and provide a reset elastic force. The third spring 30 refers to an elastic element arranged between the third movable block 21 and the fourth movable block 22, which can be specifically implemented by a disc spring, and is used to transmit axial thrust and maintain the relative position between the movable blocks. The fourth spring 31 refers to an elastic element arranged between the fourth movable block 22 and the connecting disk 28, which can be specifically implemented by a wave spring, and is used to balance the reaction force generated by the axial movement and maintain the synchronization of the movement. The three groups of springs form a linkage buffer system, which can convert the rotational motion of the ball screw 10 into a multi-directional controllable linear displacement.

[0070] Specifically, when the ball screw 10 rotates to drive the third movable block 21 axially, the elastic force generated by the compression of the third spring 30 pushes the fourth movable block 22 to move synchronously. Simultaneously, the preload of the fourth spring 31 applies auxiliary thrust to the fourth movable block 22 via the connecting plate 28. This dual action allows the spacing between the third and fourth movable blocks 21, 22 to be dynamically adjusted during axial movement. Furthermore, through the transmission of the third and fourth connecting rods 23, 24, the third trimming blade 25 precisely conforms to the inner wall contour of the brake disc 4. When the second movable block 16 is driven toward the brake disc 4, the compression of the second spring 29 gradually increases. After the second trimming blade 19 contacts the bottom surface of the brake disc 4, the continued movement of the second movable block 16 forces the first and second connecting rods 17, 18 to change their angles, thereby converting axial displacement into radial feed motion for the second trimming blade 19.

[0071] The present application further proposes to process the first gear 1701, the second gear 1801, the third gear 2301 and the fourth gear 2401 at the ends of the first connecting rod 17, the second connecting rod 18, the third connecting rod 23 and the fourth connecting rod 24 respectively, wherein the first gear 1701 and the second gear 1801 are meshed with each other, thereby ensuring that the first connecting rod 17 and the second connecting rod 18 always rotate synchronously, thereby making the angle of the second trimming knife 19 remain unchanged, and this gear transmission structure can accurately transmit motion, ensure the stability and accuracy of the second trimming knife 19 during the trimming process, and avoid unstable trimming quality due to angle changes. The third gear 2301 and the fourth gear 2401 are meshed with each other, thereby ensuring that the third connecting rod 23 and the fourth connecting rod 24 always rotate synchronously, thereby ensuring that the angle of the third trimming knife 25 remains unchanged, ensuring that the third trimming knife 25 can always maintain the correct cutting angle when performing trimming operations inside the brake disc 4, thereby improving the trimming effect.

[0072] Compared to existing technologies, traditional trimming devices typically use rigid transmission mechanisms, making it difficult to achieve multi-dimensional motion coordination. This solution, however, utilizes the elastic coupling of three sets of springs to create a dynamic equilibrium system for the three movable blocks during axial movement. This ensures flexible contact between the trimming tool and the workpiece surface while also enabling automatic conversion from axial to radial motion. Existing single spring structures are unable to simultaneously control the coordinated motion of multiple movable blocks, which can easily lead to tool positioning deviations or motion interference.

[0073] Through the above-mentioned technical solution, this application achieves the automatic conversion and coordinated control of the axial and radial motion of multiple sets of trimming tools, effectively solving the technical problem of difficult tool trajectory adjustment during the deburring process of complex surface workpieces. The elastic transmission system composed of three sets of springs can ensure cutting accuracy while avoiding rigid impact, and is particularly suitable for the automated trimming of four types of workpieces, such as brake discs, with center holes 401 and heat dissipation slots 402.

[0074] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An adjustable multi-angle trimming and deburring device for automobile parts processing, characterized in that: include: A trimming machine (1), wherein a driving motor (2) is fixedly mounted on the trimming machine (1), the driving motor (2) is transmission-connected to a four-jaw chuck (3), the four-jaw chuck (3) clamps a brake disc (4) to be processed, and the trimming machine (1) is further provided with a slide rail (5), a slide seat (6) is slidably connected to the slide rail (5), and a multi-angle trimming mechanism (7) is fixedly mounted on the slide seat (6); The multi-angle trimming mechanism (7) includes a buffer rod (8), one end of the buffer rod (8) is inserted into the slide seat (6), the other end of the buffer rod (8) is rotatably connected to a ball screw (10), the end of the ball screw (10) is fixedly connected to a fixed end head (11), four groups of deflection shafts (12) are arranged around the fixed end head (11), and the deflection shafts (12) are rotatably connected to a first trimming knife (13); The outer sleeve of the ball screw (10) is provided with a first movable block (15), a second movable block (16) is provided on one side of the first movable block (15), the second movable block (16) is connected to the ball screw (10) through a ball nut, a first connecting rod (17) is rotatably connected to the first movable block (15), a second connecting rod (18) is rotatably connected to the second movable block (16), and a second trimming knife (19) is rotatably connected to the ends of the first connecting rod (17) and the second connecting rod (18); A third movable block (21) is provided on one side of the second movable block (16), and the third movable block (21) is sleeved on the outside of the ball screw (10). A fourth movable block (22) is provided on one side of the third movable block (21), and the fourth movable block (22) is transmission-connected to the fourth movable block (22) via a ball nut. A third connecting rod (23) is rotatably connected to the third movable block (21), and a fourth connecting rod (24) is rotatably connected to the fourth movable block (22). The ends of the third connecting rod (23) and the fourth connecting rod (24) are rotatably connected to a third trimming knife (25).

2. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 1, characterized in that: A limiting groove (801) is processed on the buffer rod (8), and the buffer rod (8) is engaged with the slide seat (6) through the limiting groove (801). A first spring (9) is also sleeved on the outside of the buffer rod (8), and the first spring (9) is located between the buffer rod (8) and the slide seat (6).

3. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 1, characterized in that: A central hole (401) is provided at the center of the brake disc (4), and heat dissipation grooves (402) are provided around the brake disc (4).

4. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 3, characterized in that: The first trimming knife (13) is L-shaped, the deflected rotating shaft (12) is located outside the corner of the first trimming knife (13), and the distance between the long sides of the two opposite groups of first trimming knives (13) is smaller than the diameter of the center hole (401), and the distance between the short sides of the two opposite groups of first trimming knives (13) is larger than the diameter of the center hole (401).

5. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 1, characterized in that: A central magnet (14) is fixedly connected to the fixed end (11).

6. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 1, characterized in that: A first replaceable trimming blade (20) is fixedly connected to the second trimming knife (19), and the first replaceable trimming blade (20) is L-shaped, with a short side of the first replaceable trimming blade (20) in contact with the bottom surface of the brake disc (4), and a long side of the first replaceable trimming blade (20) in contact with the side surface of the brake disc (4).

7. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 1, characterized in that: A second replaceable trimming blade (26) is fixedly connected to the third trimming knife (25), the second replaceable trimming blade (26) is L-shaped, and the second replaceable trimming blade (26) is in contact with the inner wall of the brake disc (4).

8. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 1, characterized in that: A first gear (1701) is provided at the end of the first connecting rod (17), a second gear (1801) is provided at the end of the second connecting rod (18), and the first gear (1701) and the second gear (1801) are meshed with each other. A third gear (2301) is provided at the end of the third connecting rod (23), and a fourth gear (2401) is provided at the end of the fourth connecting rod (24), and the third gear (2301) and the fourth gear (2401) are meshed with each other.

9. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 1, characterized in that: One end of the buffer rod (8) is fixedly connected to four rotation limiting rods (27), the rotation limiting rods (27) are parallel to the ball screw (10), the rotation limiting rods (27) pass through the second movable block (16) and the third movable block (21), and the second movable block (16) and the third movable block (21) are slidably connected to the rotation limiting rods (27), and the ends of the four rotation limiting rods (27) are fixedly connected to a connecting disk (28), and the connecting disk (28) is rotationally connected to the ball screw (10).

10. The adjustable multi-angle trimming and deburring device for automobile parts processing according to claim 9, characterized in that: A second spring (29) is provided between the second movable block (16) and the third movable block (21), a third spring (30) is provided between the third movable block (21) and the fourth movable block (22), and a fourth spring (31) is provided between the fourth movable block (22) and the connecting disk (28).

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