Shock absorbing composite tool and holder machining system

Abstract

The application relates to the technical field of machining, and provides an anti-vibration composite cutter and a support machining system. The anti-vibration composite cutter comprises a drill bit arranged at the end of a cutter body, a blade arranged at the end of the cutter body, the blade being spaced apart from the drill bit in the radial direction of the cutter body, and a damping body fixed in a containing cavity of the cutter body and filling the containing cavity. The anti-vibration composite cutter can realize composite characteristic machining such as hole machining and surface machining, can effectively inhibit cutter vibration, and is suitable for high-efficiency and high-precision composite machining scenes. In particular, the damping body utilizes the characteristics of being fixed and filling the containing cavity, can realize accurate shock absorption in the axial and radial directions, thereby improving machining stability, guaranteeing the depth precision and hole wall quality of drilling (especially blind holes), improving the surface smoothness and size stability of surface characteristics such as an outer circle and an outer circle bottom surface, and realizing high-efficiency and high-precision composite machining.

Description

Technical Field

[0001] This application relates to the field of machining technology, and more specifically, to a machining system for anti-vibration composite cutting tools and supports. Background Technology

[0002] In machining, the demands for processing complex workpieces are constantly increasing, such as the need to machine bracket-type parts with holes and surfaces. If traditional single-function tools are used, multiple clamping and sequential machining are required, resulting in cumbersome processes and low production efficiency.

[0003] Furthermore, cutting tools are prone to radial and axial vibrations during the cutting process, affecting machining accuracy and tool life. Existing technologies employ tools with vibration-damping structures such as springs, but their extension and retraction characteristics cause variations in the effective machining stroke, making them unsuitable for machining scenarios with stringent precision requirements.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] This application provides a vibration-resistant composite tool and support machining system that can simultaneously perform composite feature machining such as hole machining and surface machining, and can effectively suppress tool vibration, making it suitable for high-efficiency and high-precision composite machining scenarios.

[0006] According to one aspect of this application, a vibration-damping composite cutting tool is provided, comprising: a drill bit disposed at an end of a tool body; a cutting blade disposed at the end of the tool body, the cutting blade and the drill bit being spaced apart in the radial direction of the tool body; and a damping body fixed in and filling a receiving cavity of the tool body.

[0007] The drill bit is used to perform drilling operations on holes. The inserts are radially spaced from the drill bit and used for milling surface features such as the outer diameter and the bottom surface of the outer diameter. A damper, fixed and filling a cavity, absorbs and dissipates the vibration energy generated by the anti-vibration composite tool during rotary cutting, thereby ensuring the machining accuracy of drilling (especially blind holes) and surface features such as the outer diameter and the bottom surface of the outer diameter, and extending tool life.

[0008] In some embodiments, the damping body is interference-fitted and / or bonded and / or potted in the receiving cavity. These methods ensure that the damping body is rigidly connected to the receiving cavity, preventing movement, especially axial movement, thereby ensuring the machining accuracy of the blind hole.

[0009] In some embodiments, the elastic modulus of the damper along the axial direction of the tool body is greater than or equal to the elastic modulus along the radial direction, ensuring that the damper can maintain the stability of the anti-vibration composite tool in the axial direction with high rigidity when subjected to axial vibration, and ensuring the stability of the blind hole machining depth.

[0010] In some embodiments, the loss factor of the damper along the radial direction is greater than or equal to the loss factor along the axial direction, ensuring that the damper can efficiently absorb energy with high damping characteristics when subjected to radial vibration, and ensuring the accuracy of different features such as composite cutting holes and surfaces.

[0011] In some embodiments, the drill bit has a cutting edge and a shoulder along the axial direction of the tool body, and the cutting edge of the insert extends beyond the shoulder of the drill bit and at least partially overlaps with the cutting edge of the drill bit.

[0012] The cutting edge of the insert extends beyond the shoulder of the drill bit and at least partially overlaps with the cutting edge of the drill bit, ensuring that while the drill bit completes drilling to a certain depth, the insert can mill the outer circle, the bottom surface of the outer circle, and other parts of the workpiece, achieving simultaneous composite machining of holes and surfaces, and saving machining time.

[0013] In some embodiments, the cutting tool includes a plurality of blades spaced circumferentially, wherein the radial distance between the cutting edges of the plurality of blades and the central axis of the drill bit is not exactly the same.

[0014] By setting multiple blades with different radial distances, segmented cutting can be achieved, distributing the total cutting load across multiple blades, where each blade only needs to remove a portion of the cutting amount.

[0015] In some embodiments, each blade is fixedly connected to a tool holder, the tool holder being provided with a radially extending groove, and the end of the tool body being provided with a locking hole. The tool holder is fixed to the end of the tool body by a first locking member passing through the groove, locking into the locking hole, and pressing against the surface of the groove; wherein the groove has a radial adjustment allowance relative to the first locking member.

[0016] The radial position of the cutting tool is adjusted by the cooperation of the slide groove, the first locking element and the locking hole of the tool holder, so that the anti-vibration composite tool can be flexibly adapted to the outer circle machining of workpieces of different sizes, and has strong versatility.

[0017] In some embodiments, the first locking member and the locking hole are locked together by a threaded connection, which achieves simple and reliable locking and facilitates loosening to adjust the radial position of the blade.

[0018] In some embodiments, the tool holder is further provided with a scale adapted to the slide groove, providing an intuitive and accurate visual reference for radial adjustment, and enabling quantitative and repeatable adjustment.

[0019] In some embodiments, the blade is rotatably fixed to the tool holder by a second locking member, which facilitates the adjustment of the blade position according to different machining requirements of surface features such as the outer circle and the bottom surface of the outer circle, and can improve the utilization rate of the blade edge at different positions.

[0020] In some embodiments, the central axis of the drill bit coincides with the central axis of the tool body, which gives the anti-vibration composite tool better dynamic balance performance, thereby ensuring the accuracy of hole machining and surface machining.

[0021] In some embodiments, the cutting edge of the blade is provided with a notch to form a chip breaker groove. The chip breaker groove can cut off the chips during the cutting process, preventing the chips from entangled in the tool, scratching the machined surface, and blocking the chip removal space, thereby ensuring the smoothness, safety and continuity of the machining process, while reducing cutting resistance and cutting heat.

[0022] In some embodiments, the anti-vibration composite tool further includes a cooling conduit disposed in the tool body and leading to the drill bit and the cutting tool.

[0023] The cooling pipes provide excellent heat dissipation, effectively preventing tool damage due to overheating during machining. They also provide effective lubrication, reducing cutting friction and assisting in chip removal, such as flushing chips out of holes.

[0024] In some embodiments, the spray nozzles of the cooling pipes leading to the drill bit are distributed in the front end of the drill bit and in the chip removal groove, so as to achieve cooling and lubrication of different cutting parts of the drill bit.

[0025] In some embodiments, the spray nozzles of the cooling pipe leading to the drill bit extend outward at an angle relative to the axial direction of the tool body, so that the sprayed coolant not only cools the drill bit, but also forms a chip-removing thrust to impact and remove chips from the hole, solving the chip removal problem in deep hole and blind hole machining, and preventing drill bit wear, breakage and hole quality degradation caused by chip blockage.

[0026] In some embodiments, the spray nozzles of the cooling pipe leading to the blade are distributed on the end face of the tool body, which can directly flush the hot spot area where the blade contacts the chip, thereby improving cooling efficiency.

[0027] In some embodiments, the cooling conduit leading to the blade extends inward at an angle relative to the axial direction of the tool body, which helps to control chip splashing.

[0028] According to another aspect of this application, a bracket processing system is provided, the bracket processing system including a bracket and a shock-resistant composite tool as described in any of the above embodiments, wherein the drill bit is configured to process a blind hole in the form of a guide hole and a guide hole end face of the bracket, and the cutting tool is configured to process the outer circle of the guide hole and the bottom surface of the outer circle of the guide hole of the bracket.

[0029] By using a vibration-damping composite tool, multiple features of the bracket, including the guide rod hole (blind hole), the end face of the guide rod hole, the outer circle of the guide rod hole, and the bottom surface of the outer circle of the guide rod hole, can be machined. The damping body absorbs and dissipates the vibration energy along the axial and radial directions of the tool body during the rotary cutting process, thus meeting the requirements of high-efficiency and high-precision machining.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0032] Figure 1 This document shows a schematic diagram of the anti-vibration composite cutting tool in an embodiment of this application. Figure 2 This document shows a schematic diagram of the structure of the bracket in an embodiment of this application; Figure 3 This diagram illustrates the structure of the holes and surfaces to be processed in the bracket according to an embodiment of this application. Figure 4 A schematic diagram of the support processing system in an embodiment of this application is shown. Detailed Implementation

[0033] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0034] The accompanying drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar structures, and therefore, repeated descriptions of them will be omitted.

[0035] The use of terms such as "first," "second," and similar words in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. The term "multiple" means two or more, unless otherwise explicitly specified. Furthermore, in the description of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two elements.

[0036] It should be noted that, unless otherwise specified, the embodiments of this application and the features in different embodiments can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] Figure 1 The structure of the anti-vibration composite tool is illustrated, with reference to... Figure 1 As shown, the anti-vibration composite cutting tool provided in this application embodiment includes: a drill bit 200 disposed at the end of the cutting tool body 100; cutting blades (310, 320) disposed at the end of the cutting tool body 100, the cutting blades (310, 320) and the drill bit 200 being spaced apart in the radial direction X of the cutting tool body 100; and a damping body 400 fixed in the receiving cavity 110 of the cutting tool body 100 and filling the receiving cavity 110.

[0038] The drill bit 200 is used for drilling holes. Inserts (310, 320) are radially spaced from the drill bit 200 and used for milling features such as the outer diameter and the bottom surface of the outer diameter. Thus, using the anti-vibration composite tool of this application, multiple feature machining requirements, such as holes and surfaces, can be achieved simultaneously, resulting in a simplified process and high production efficiency. The damping body 400, which is fixed and fills the receiving cavity 110, absorbs and dissipates the vibration energy generated by the anti-vibration composite tool during rotary cutting, thereby ensuring the machining accuracy of drilling (especially blind holes) and features such as the outer diameter and the bottom surface of the outer diameter, and extending tool life. In particular, the damper 400, by fixing and filling the receiving cavity 110, can achieve precise axial and radial vibration damping, preventing the anti-vibration composite tool from vibrating along its axial direction Z and radial direction X. This improves machining stability, ensures the depth accuracy and hole wall quality of drilling (especially blind holes), and enhances the surface finish and dimensional stability of surface features such as the outer circle and the bottom of the outer circle, achieving high-efficiency and high-precision composite machining. On the other hand, it reduces the risk of damage to the anti-vibration composite tool due to vibration and extends the tool's service life.

[0039] The damper 400 is made of a damping material with a high loss factor that can dissipate solid mechanical vibration energy by converting it into heat energy. For example, known damping materials such as damping alloys and polymer composites can be used. The anti-vibration composite cutting tool, especially its drill bit 200 and inserts (310, 320), can be made of tough, durable materials capable of withstanding large cutting forces and friction, such as alloy steel, to adapt to the machining of various materials, meet high-precision machining requirements, and ensure product quality.

[0040] In some embodiments, the damper 400 is interference-fitted and / or bonded and / or potted in the receiving cavity 110. These methods ensure that the damper 400 is rigidly connected to the receiving cavity 110, preventing movement, especially axial movement, thereby ensuring the machining accuracy of the blind hole.

[0041] In some embodiments, the elastic modulus of the damper 400 along the axial direction Z of the tool body 100 is greater than or equal to the elastic modulus along the radial direction X, ensuring that the damper 400 can maintain the stability of the anti-vibration composite tool in the axial direction Z with high rigidity when subjected to axial vibration, and ensuring the stability of the blind hole machining depth.

[0042] In some embodiments, the loss factor of the damper 400 along the radial direction X is greater than or equal to the loss factor along the axial direction Z, ensuring that the damper 400 can efficiently absorb energy with high damping characteristics when subjected to radial vibration, and ensuring the accuracy of different features such as composite cutting holes and surfaces.

[0043] In some embodiments, along the axial direction Z of the tool body 100, the drill bit 200 has a cutting edge 210 and a shoulder 220, and the cutting edges (311, 322) of the inserts (310, 320) extend beyond the shoulder 220 of the drill bit 200 and at least partially overlap with the cutting edge 210 of the drill bit 200.

[0044] The shoulder 220 of the drill bit 200 is used to provide an axial positioning reference. The cutting edges (311, 322) of the inserts (310, 320) extend beyond the shoulder 220 of the drill bit 200 and at least partially overlap with the cutting edge 210 of the drill bit 200, ensuring that while the drill bit 200 completes drilling to a certain depth, the inserts (310, 320) can mill the outer circle, the bottom surface of the outer circle, and other parts of the workpiece, achieving synchronous composite machining of holes and surfaces, and saving machining time.

[0045] In some embodiments, the inserts (310, 320) include multiple inserts spaced circumferentially (e.g., a first insert 310 and a second insert 320, but not limited thereto). The radial distances (A, B) between the cutting edges (311, 322) of the multiple inserts and the central axis Z' of the drill bit 200 are not exactly the same, enabling segmented cutting and distributing the total cutting load across the multiple inserts, where each insert only needs to remove a portion of the cutting material. This reduces the cutting force and heat of individual inserts, minimizes tool wear and deformation, significantly improves machining efficiency without compromising machining quality, and provides flexibility for machining outer diameters of different sizes.

[0046] In a specific example, the multiple inserts include two inserts, wherein the radial distance A between the cutting edge 311 of the first insert 310 and the central axis Z' of the drill bit 200 is less than the radial distance B between the cutting edge 322 of the second insert 320 and the central axis Z' of the drill bit 200. During the rotary cutting process of the anti-vibration composite tool, the first insert 310 and the second insert 320 perform segmented cutting and work together to complete the final required cutting of the outer circle and the bottom surface of the outer circle.

[0047] In some embodiments, the first blade 310 and the second blade 320 are respectively fixedly connected to the tool holder (313, 323). The tool holder (313, 323) is provided with radially extending grooves (314, 324). The end of the tool body 100 is provided with a locking hole. The tool holder (313, 323) is fixed to the end of the tool body 100 by a first locking member (315, 325) that passes through the grooves (314, 324), locks in the locking hole, and presses against the surface of the grooves (314, 324). The grooves (314, 324) have a radial adjustment margin relative to the first locking member (315, 325).

[0048] The radial position adjustment of the cutting inserts (310, 320) is achieved through the cooperation of the grooves (314, 324) of the tool holder (313, 323), the first locking element (315, 325), and the locking hole. This allows the anti-vibration composite tool to flexibly adapt to the machining of the outer diameter of workpieces of different sizes, demonstrating strong versatility. The guiding cooperation between the grooves (314, 324) and the first locking element (315, 325) ensures the linearity and accuracy of the adjustment. When the first locking member (315, 325) is released, the tool holder (313, 323) can slide along the first locking member (315, 325) through the slide groove (314, 324) to adjust the radial position of the blade (310, 320); when the first locking member (315, 325) presses against the tool holder (313, 323) and locks it in the locking hole, the tool holder (313, 323) and the blade (310, 320) are fixed.

[0049] In some embodiments, the first locking member (315, 325) and the locking hole are locked together by a threaded engagement, achieving simple and reliable locking and facilitating loosening to adjust the radial position of the blade (310, 320). In other embodiments, the first locking member (315, 325) and the locking hole can also be locked together by other suitable means.

[0050] In some embodiments, the tool holder (313, 323) is also provided with a scale (316, 326) adapted to the slide (314, 324) to provide an intuitive and accurate visual reference for radial adjustment, enabling quantitative and repeatable adjustment.

[0051] In some embodiments, the cutting blades (310, 320) are rotatably fixed to the tool holder (313, 323) by means of a second locking member (317, 327), which facilitates the adjustment of the position of the cutting blades (310, 320) according to different machining requirements of surface features such as the outer circle and the bottom surface of the outer circle, and can improve the utilization rate of the cutting edge of the cutting blades (310, 320) at different positions. The second locking member (317, 327) is, for example, a screw, but is not limited thereto.

[0052] In some embodiments, the central axis Z' of the drill bit 200 coincides with the central axis Z' of the tool body 100, giving the anti-vibration composite tool superior dynamic balance performance, thereby ensuring the accuracy of hole and surface machining. Depending on different machining requirements, the drill bit 200 can also be eccentrically positioned.

[0053] In some embodiments, the cutting edges (311, 322) of the inserts (310, 320) are provided with notches to form chip breaker grooves (318, 328). The chip breaker grooves (318, 328) can cut off the chips during the cutting process, preventing the chips from wrapping around the tool, scratching the machined surface, and blocking the chip removal space, thereby ensuring the smoothness, safety and continuity of the machining process, while reducing cutting resistance and cutting heat.

[0054] In some embodiments, the anti-vibration composite tool further includes a cooling conduit 120 disposed in the tool body 100 and leading to the drill bit 200 and the cutting inserts (310, 320).

[0055] The cooling pipe 120 provides excellent heat dissipation, effectively preventing the tool from being damaged by overheating during machining. It also provides effective lubrication, reduces cutting friction, and assists in chip removal, such as flushing chips out of the hole.

[0056] In some embodiments, the spray nozzles (121, 122) of the cooling pipe 120 leading to the drill bit 200 are distributed in the front end of the drill bit 200 and in the chip removal groove to achieve cooling and lubrication of different cutting parts of the drill bit 200.

[0057] In some embodiments, the spray nozzles (121, 122) of the cooling conduit 120 leading to the drill bit 200 extend outward at an angle relative to the axial direction Z of the tool body 100, so that the sprayed coolant not only cools the drill bit 200, but also forms a chip-removing thrust to impact and remove chips from the hole, solving the chip removal problem in deep hole and blind hole machining, and preventing the drill bit 200 from wearing out, breaking, and the hole quality from deteriorating due to chip blockage.

[0058] In a specific example, the spray nozzles (121, 122) of the cooling conduit 120 leading to the drill bit 200 include two first spray nozzles 121 distributed at the front end of the drill bit 200 and two second spray nozzles 122 distributed in the chip removal groove of the drill bit 200. The two first spray nozzles 121 extend outward from the center of the drill bit 200 in the axial direction Z relative to the tool body 100 to the front end of the drill bit 200, and the two second spray nozzles 122 extend outward from the center of the drill bit 200 in the axial direction Z relative to the tool body 100 to the chip removal groove of the drill bit 200. During the drilling process, the cooling pipe 120 leading to the drill bit 200 provides high-pressure spray cooling and lubrication to the cutting edge 210 of the drill bit 200; two first spray nozzles 121 spray high pressure onto the front end of the drill bit 200, cooling and lubricating while simultaneously discharging the chips cut by the front end of the drill bit 200 from the hole to the rear; two second spray nozzles 122 spray high pressure along the chip removal groove of the drill bit 200 to the rear, accelerating the discharge of accumulated chips in the chip removal groove of the drill bit 200, preventing chips from causing wear on the inner hole of the workpiece and the drill bit 200, ensuring the surface finish and quality of the inner hole of the workpiece, and improving the product qualification rate.

[0059] In some embodiments, the spray nozzles 123 of the cooling pipe 120 leading to the cutting blades (310, 320) are distributed on the end face of the tool body 100, which can directly flush the hot spot area where the cutting blades (310, 320) come into contact with the chips, thereby improving cooling efficiency.

[0060] In some embodiments, the cooling conduit 120 leading to the cutting blades (310, 320) extends inwardly at an angle relative to the axial direction Z of the tool body 100, which helps to control chip splashing.

[0061] This application also provides a bracket processing system, including a bracket and a shock-resistant composite tool as described in any of the above embodiments.

[0062] Figure 2 The structure of the support is shown. Figure 3 The diagram illustrates the structure of the holes and surfaces to be machined in the bracket. Figure 4 The structure of the bracket processing system is illustrated. (Combined with...) Figures 1 to 4As shown, the drill bit 200 is configured to machine the blind hole 610 and the guide rod hole end face 620 of the support 600, and the inserts (310, 320) are configured to machine the outer circle 630 and the bottom surface 640 of the guide rod hole of the support 600. Using a vibration-damping composite tool, multi-feature composite machining of the guide rod hole 610 (blind hole), the guide rod hole end face 620, the outer circle 630, and the bottom surface 640 of the guide rod hole of the support is achieved. The damper 400 absorbs and dissipates the vibration energy along the axial direction Z and radial direction X of the tool body 100 during rotary cutting, meeting the requirements for high-efficiency and high-precision machining.

[0063] During the actual machining process, the bracket can be installed onto the fixture 700. The front clamping jaws 710 and rear clamping jaws 720 of the fixture 700 are used to lock different parts of the bracket 600 to achieve stable positioning and installation. Then, the anti-vibration composite tool is controlled to rotate clockwise or counterclockwise to perform composite cutting on the guide rod hole 610 and mating surfaces of the bracket 600. Using the drill bit 200, the guide rod hole 610 and its end face 620 can be machined. Using the inserts (310, 320), the outer diameter 630 and bottom surface 640 of the guide rod hole can be machined. This avoids multiple machining steps such as tool changes, improving product processing efficiency. Furthermore, during machining, a damper 400 is used to prevent vibration and control the machining accuracy of the guide rod hole 610, its end face 620, its outer diameter 630, and its bottom surface 640.

[0064] Among them, bracket 600 is, for example, a mounting bracket for a brake caliper, but it is not limited thereto. Any scenario that requires composite machining such as hole machining and surface machining, as well as high-precision machining quality, can use the anti-vibration composite tool of this application.

[0065] Finally, it should be noted that the above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A shock-resistant composite cutting tool, characterized in that, include: The drill bit is located at the end of the tool body; A cutting blade is disposed at the end of the tool body, and the cutting blade and the drill bit are spaced apart in the radial direction of the tool body; The damping body is fixed in the receiving cavity of the tool body and fills the receiving cavity.

2. The anti-vibration composite cutting tool as described in claim 1, characterized in that, The damping body is interference-fitted and / or bonded and / or potted in the receiving cavity.

3. The anti-vibration composite cutting tool as described in claim 1, characterized in that, The elastic modulus of the damper along the axial direction of the tool body is greater than or equal to the elastic modulus along the radial direction, and / or the loss factor of the damper along the radial direction is greater than or equal to the loss factor along the axial direction.

4. The anti-vibration composite cutting tool as described in claim 1, characterized in that, Along the axial direction of the tool body, the drill bit has a cutting edge and a shoulder, and the cutting edge of the insert extends beyond the shoulder of the drill bit and at least partially overlaps with the cutting edge of the drill bit.

5. The anti-vibration composite cutting tool as described in claim 1, characterized in that, The cutting tool includes a plurality of blades spaced circumferentially, and the radial distance between the cutting edges of the plurality of blades and the central axis of the drill bit is not exactly the same.

6. The anti-vibration composite cutting tool as described in claim 5, characterized in that, Each blade is fixedly connected to a blade holder, which is provided with a radially extending groove. The end of the blade body is provided with a locking hole. The blade holder is fixed to the end of the blade body by a first locking member that passes through the groove, locks into the locking hole, and presses against the surface of the groove. The slide groove has a radial adjustment margin relative to the first locking member.

7. The anti-vibration composite cutting tool as described in claim 6, characterized in that, The first locking member and the locking hole are locked together by a thread.

8. The anti-vibration composite cutting tool as described in claim 6, characterized in that, The tool holder is also equipped with a scale that is compatible with the slide groove.

9. The anti-vibration composite cutting tool as described in claim 6, characterized in that, The blade is rotatably and fixedly connected to the blade holder by a second locking member.

10. The anti-vibration composite cutting tool as described in claim 5, characterized in that, The central axis of the drill bit coincides with the central axis of the tool body.

11. The anti-vibration composite cutting tool as described in any one of claims 1, 4 to 10, characterized in that, The blade has a notch on its cutting edge to form a chip-breaking groove.

12. The anti-vibration composite cutting tool as described in claim 1, characterized in that, It also includes cooling conduits disposed in the tool body and leading to the drill bit and the cutting tool.

13. The anti-vibration composite cutting tool as described in claim 12, characterized in that, The spray nozzles of the cooling pipes leading to the drill bit are distributed in the front end of the drill bit and in the chip removal groove, and / or the spray nozzles of the cooling pipes leading to the drill bit extend outward at an angle relative to the axial direction of the tool body.

14. The anti-vibration composite cutting tool as described in claim 12, characterized in that, The spray nozzles of the cooling conduit leading to the blade are distributed on the end face of the tool body, and / or the cooling conduit leading to the blade extends inward at an angle relative to the axial direction of the tool body.

15. A bracket processing system, characterized in that, The device includes a support and a shock-absorbing composite cutting tool as described in any one of claims 1 to 14, wherein the drill bit is configured to machine a blind hole in the form of a guide hole and a guide hole end face of the support, and the cutting tool is configured to machine the outer circle of the guide hole and the bottom surface of the outer circle of the guide hole of the support.

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