Workpiece boring tool, boring apparatus and method of use thereof

Abstract

The present application relates to the technical field of machining, and proposes a workpiece boring tool, a boring equipment and an application method thereof, comprising an inner rod, a first shell, a second shell, a tool holder, a tool head and a sensing element, wherein the inner rod is provided with at least two groups of accommodating grooves; the first shell and the second shell are oppositely arranged on the inner rod, and the first shell and the second shell seal the accommodating grooves; the tool holder is arranged on the first shell and is an integrated structure with the first shell; the tool head is arranged on the tool holder; and the sensing element is linearly arranged on the first shell and the tool holder. The integrated structure of the present application is convenient for opening a cooling flow channel in the middle part of the inner rod, and can effectively improve the convenience of integration. The first shell and the second shell are arranged to seal the accommodating grooves, and the tool holder and the tool head are directly integrated with the first shell, which can significantly reduce the number of components and reduce the difficulty of integration. Meanwhile, the structure is convenient for arranging the sensing element, which is beneficial to ensuring good machining precision.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a workpiece boring tool, boring equipment, and its application method. Background Technology

[0002] A boring bar is a common machining tool used to cut the inner walls of a workpiece to achieve internal hole machining. In the application of boring bars, because some workpieces have deep inner holes, the boring bar needs to have a long shank to extend into the workpiece hole to perform the machining operation. However, as the length of the boring bar increases, its vibration problem becomes more pronounced. To avoid affecting machining accuracy, appropriate vibration reduction measures are needed to reduce tool vibration and thus improve machining accuracy.

[0003] An existing invention patent with authorization announcement number CN113857511B discloses an adjustable damping vibration reduction guide rod, which has an installation cavity for mounting a mass block to achieve vibration absorption. However, since the mass block needs to be coaxially mounted with the guide rod, it is difficult to set up the cooling channel. Consideration must be given to how the cooling channel passes through the mass block and how to prevent the flowing cooling medium from affecting the mass block's movement. If the coolant is circulated through a pipe, it is necessary to consider how to prevent the pipe from interfering with the mass block, which increases the integration difficulty. Although some solutions use external cooling pipes, these are not suitable for boring operations. If the workpiece's hole diameter is small, it will interfere with the cooling pipes, or even make it impossible to lay out the cooling pipes, and will also affect chip removal during boring, resulting in substandard inner hole roughness.

[0004] Another invention patent, authorized by CN 115697595B, discloses a boring bar and a non-rotating boring tool, as well as a boring arrangement including such a boring bar. In this design, an electrically controlled vibration actuator is installed by slotting the extended body to suppress the vibration of the tool bar, thus facilitating the arrangement of cooling channels in the middle space of the tool bar. However, this design involves numerous components, such as a damping module, a front section, and a main section, resulting in a complex serial structure. Furthermore, after multiple sections have their own channels and are connected, it is difficult for these channels to connect seamlessly. Simultaneously, the split structure makes it inconvenient to install sensors to detect the vibration of the tool bar. When using an active actuator for vibration reduction, it is difficult to ensure accurate detection of the tool bar vibration, which in turn affects subsequent active vibration suppression. Summary of the Invention

[0005] In view of this, the present invention proposes a workpiece boring tool, boring equipment and application method that is easy to integrate and facilitates the layout of flow channels and sensing elements, in order to solve the problems of complex structure and interference in the existing tool in terms of sensing element layout, flow channel layout and overall structure integration.

[0006] The technical solution of this invention is implemented as follows: On one hand, the present invention provides a workpiece boring tool, comprising an inner rod, a first outer shell, a second outer shell, a tool holder, a tool head, and a sensing element, wherein, The inner rod has at least two sets of receiving slots, each set of receiving slots has at least two receiving slots, and the opening directions of the two sets of receiving slots are staggered in the axial view of the inner rod. The first outer shell and the second outer shell are disposed opposite to each other on the inner rod, and the first outer shell and the second outer shell are sealed to receive the groove; The tool holder is mounted on the first housing, and the tool holder and the first housing are an integral structure; The cutter head is mounted on the cutter holder; The sensing elements are arranged linearly on the first housing and the tool holder.

[0007] Based on the above technical solutions, preferably, the inner rod includes a rod body, a connecting rod, and a limiting plate, and the receiving groove includes a first receiving groove and a second receiving groove, wherein, The rod body is provided with a first receiving groove and a second receiving groove; The connecting rod has a square rod-shaped structure. Two sides of the connecting rod are flush with the bottom surface of the first receiving groove, and the other two sides of the connecting rod are flush with the bottom surface of the second receiving groove. A limiting plate is set on the other end of the connecting rod. The limiting plate has a circular plate structure and is snapped into the first shell and the second shell. The end area of ​​the limiting plate is larger than the end area of ​​the connecting rod.

[0008] Based on the above technical solutions, preferably, the inner rod further includes an end plate, and the tool holder includes a connecting seat, wherein... The end plate is located on the end of the rod away from the connecting rod, and the end plate has a limiting groove that is connected to the first receiving groove. One end of the connector is connected to the tool holder, and the other end of the connector is connected to the first outer shell, and the connector is snapped into the limiting groove.

[0009] Based on the above technical solutions, a preferred embodiment further includes an end cap and a liquid guide tube; the inner rod has a first flow channel along its axis; and the knife holder has a second flow channel. The end cap is located at the end of the inner rod; The liquid guide tube is slidably mounted on the end cap, with one end of the liquid guide tube connected to the first flow channel and the other end of the liquid guide tube connected to the second flow channel.

[0010] Based on the above technical solutions, preferably, the end cap includes a cover plate, a pressure rod, and a locking bolt, and the tool holder is provided with a protrusion, wherein, The cover plate is located at the end of the inner rod, and the cover plate has an opening; The pressure bar is set on the cover plate and spans the opening; The protrusion penetrates the opening; The locking bolt passes through the protrusion and is connected to the pressure rod by thread.

[0011] Based on the above technical solutions, preferably, a portion of the tool holder is connected to the first outer shell, and the portion of the tool holder is configured as a suspension part; The protrusion is set on the suspension part; The pressure bar holds the suspension part.

[0012] Based on the above technical solutions, preferably, it also includes a connecting tube, wherein the first outer shell and the second outer shell are combined to form a cavity, and the cavity is located on the side of the inner rod away from the cutter head; The connecting pipe is set inside the cavity, and a Y-shaped flow channel is opened inside the connecting pipe. One port of the Y-shaped flow channel is connected to the first flow channel, and the other two ports of the Y-shaped flow channel are free ports.

[0013] Based on the above technical solutions, preferably, the end face of the connecting tube abuts against the inner rod, and the circumferential surface of the connecting tube is in clearance fit with the first outer shell and the second outer shell.

[0014] On the other hand, the present invention provides a boring device, including the above-mentioned workpiece boring tool.

[0015] Furthermore, the present invention provides a method for applying the above-mentioned boring equipment, comprising the following steps: S1. Install vibration damping elements in the receiving groove of the inner rod; S2. The centering inner rod is clamped through the first outer shell and the second outer shell, and sensing elements are arranged on the first outer shell and the tool holder; S3. Install the cutter head on the cutter holder; S4. Assemble the workpiece boring tool onto the machine tool and connect the sensing element to the detection equipment; S5. The machine tool drives the workpiece to rotate and feeds the workpiece boring tool to complete the boring of the workpiece's inner hole through the tool head.

[0016] The workpiece boring tool, boring equipment, and application method of the present invention have the following advantages over the prior art: (1) By opening a receiving groove on the inner rod for installing vibration damping elements such as active actuators, vibration suppression of the cutting tool can be achieved. This structure makes it easy to open a cooling channel in the middle of the inner rod, which can effectively improve the convenience of integration. At the same time, a first outer shell and a second outer shell are provided to seal the receiving groove, and the tool holder and tool head are directly integrated with the first outer shell, which can significantly reduce the number of parts and reduce the integration difficulty. At the same time, this structure facilitates the placement of sensing elements. When the integrated tool holder and the first outer shell vibrate, they can be better detected by the sensing elements. Through accurate detection results, it is beneficial to improve the subsequent active suppression effect, thereby ensuring good machining quality.

[0017] (2) In the structure of the inner rod, the rod body is used to open the receiving groove to install the active actuator. To ensure the rigidity of the rod body and the outer shell, a connecting rod and a limiting plate are provided on the rod body. In this way, after the assembly of the first outer shell and the second outer shell is completed, the axial positioning of the inner rod relative to the outer shell can be strengthened by the limiting plate, thereby further improving the structural rigidity.

[0018] (3) In the structure of the tool holder, a connecting seat is provided for connecting the tool holder and the first outer shell. At the same time, a limiting groove is provided on the end plate of the inner rod. In this way, when the first outer shell and the inner rod are connected, the connecting seat can be engaged with the limiting groove. This structure is beneficial to limit the first outer shell, thereby improving the overall structural rigidity of the first outer shell, the connecting seat and the tool holder, which can improve the stability of the cutting head.

[0019] (4) By setting an end cap and a liquid guide tube, the end cap can be connected to the inner rod to press the tool holder, which helps to further improve the stability of the tool holder. At the same time, the end cap is integrated with a liquid guide tube. The first flow channel is opened along the axis of the inner rod, and the second flow channel is directly opened in the tool holder. After the end cap is installed, the liquid guide tube can be directly connected to the first flow channel and the second flow channel. While ensuring that the tool head can be cooled, it not only improves the convenience of integration, but also ensures the stability of the structure.

[0020] (5) By providing an opening on the end cap and a protrusion on the tool holder, after the end cap is installed, the cover plate will abut against the end of the inner rod, the pressure rod will press against the tool holder, and the protrusion on the tool holder will pass through the opening. Through the abutment and cooperation between the protrusion and the pressure rod, the tool holder can be radially limited. The above structure, together with the second outer shell and the receiving groove of the inner rod, can effectively ensure the rigidity of the overall structure. At the same time, a locking bolt is provided on the protrusion. Through the threaded connection between the locking bolt and the pressure rod, the connection strength between the end cap and the tool holder can be further improved.

[0021] (6) By utilizing the first and second outer shells to set up a cavity for installing a connecting pipe with a Y-shaped flow channel, the first flow channel can be extended and different coolants can be used to achieve cooling, effectively improving the convenience of application. At the same time, the connecting pipe and the outer shell adopt a clearance fit, which can avoid affecting the cross-sectional stress and help ensure good working accuracy. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the workpiece boring tool of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is an exploded view of the workpiece boring tool of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the structure at point B; Figure 5 This is a perspective view of the inner rod of the workpiece boring tool of the present invention; Figure 6 This is another perspective view of the inner rod of the workpiece boring tool of the present invention; Figure 7 This is a perspective view of the second housing of the workpiece boring tool of the present invention; Figure 8 This is a perspective view of the first outer shell of the workpiece boring tool of the present invention; Figure 9 This is a perspective view of the inner structure of the first outer shell of the workpiece boring tool of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of the structure at point C; Figure 11 This is a perspective view of the end cap of the workpiece boring tool of the present invention; Figure 12 This is an end view of the workpiece boring tool of the present invention; Figure 13 For the present invention Figure 12 Sectional view along the AA direction; Figure 14 This is a front view of the workpiece boring tool of the present invention; Figure 15 For the present invention Figure 14 Cross-sectional view along the BB direction; In the diagram: 1. Inner rod; 11. Rod body; 12. Connecting rod; 13. Limiting plate; 14. End plate; 101. Receiving groove; 1011. First receiving groove; 1012. Second receiving groove; 102. Limiting groove; 103. First flow channel; 2. First outer shell; 3. Second outer shell; 4. Knife holder; 41. Connecting seat; 42. Protrusion; 43. Suspension part; 401. Second flow channel; 5. Knife head; 6. Sensing element; 7. End cap; 71. Cover plate; 72. Pressure rod; 73. Locking bolt; 701. Opening; 8. Liquid guide tube; 9. Connecting tube; 901. Lumen; 902. Y-shaped flow channel. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0030] like Figures 1-15 As shown, the workpiece boring tool of the present invention includes an inner rod 1, a first outer shell 2, a second outer shell 3, a tool holder 4, a tool head 5, a sensing element 6, an end cap 7, a liquid guide tube 8, and a connecting tube 9.

[0031] like Figures 1-8 As shown, the inner rod 1 has at least two sets of receiving grooves 101, each set of receiving grooves 101 having at least two receiving grooves 101, and the opening directions of the two sets of receiving grooves 101 are staggered in the axial view of the inner rod 1; the first outer shell 2 and the second outer shell 3 are disposed opposite to each other on the inner rod 1, and the first outer shell 2 and the second outer shell 3 seal the receiving grooves 101; the tool holder 4 is disposed on the first outer shell 2, and the tool holder 4 and the first outer shell 2 are an integral structure; the tool head 5 is disposed on the tool holder 4; the sensing element 6 is linearly arranged on the first outer shell 2 and the tool holder 4.

[0032] As described above, the receiving groove 101 is used to install vibration damping components such as active actuators to generate damping, thereby reducing tool vibration and ensuring machining accuracy.

[0033] Specifically, in the two sets of receiving grooves 101 on the inner rod 1, the two receiving grooves 101 in each set are opened opposite to each other on the inner rod 1, and at least two sets are opened. The two sets of receiving grooves 101 are staggered in the axial view of the inner rod, so as to achieve vibration suppression in different directions.

[0034] Meanwhile, this structure does not occupy the internal space of the inner rod 1, which facilitates the layout of the flow channel. Moreover, the flow channel is not separated on multiple components, which has the advantages of easy processing and low integration difficulty.

[0035] The first outer shell 2 and the second outer shell 3 are disposed opposite to each other on the inner rod 1. After the first outer shell 2 and the second outer shell 3 are attached to the inner rod 1 and the installation is completed, the receiving groove 101 is sealed to prevent the active actuator from being exposed and thus prevent damage.

[0036] Specifically, both the first outer shell 2 and the second outer shell 3 are connected to the inner rod 1, and the first outer shell 2 and the second outer shell 3 are also connected to each other to ensure overall rigidity.

[0037] In this structure, the tool holder 4 is directly integrated with the first outer shell 2 to form an integral structure, so that when the first outer shell 2 is installed, the tool holder 4 will be assembled in place simultaneously.

[0038] The tool holder 4 is used to mount the tool head 5 to perform cutting work.

[0039] In this structure, the cooperation between the first outer shell 2 and the second outer shell 3 can simultaneously seal all receiving slots 101. Thus, it is only necessary to connect the first outer shell 2 and the second outer shell 3, and connect the first outer shell 2 and the second outer shell 3 to the inner rod 1. This integrated structure significantly reduces the number of parts and improves the overall ease of integration.

[0040] Since the first housing 2 and the tool holder 4 are integrated into a single structure and extend through the head and tail of the tool, it is convenient to linearly arrange the sensing element 6 to detect the vibration of the tool and ensure good detection accuracy. This facilitates precise control of the active actuator, thereby ensuring the vibration reduction effect.

[0041] like Figures 3-6 As shown, the inner rod 1 includes a rod body 11, a connecting rod 12, and a limiting plate 13. The receiving groove 101 includes a first receiving groove 1011 and a second receiving groove 1012. The rod body 11 has the first receiving groove 1011 and the second receiving groove 1012. The connecting rod 12 has a square rod structure. Two sides of the connecting rod 12 are flush with the bottom surface of the first receiving groove 1011, and the other two sides of the connecting rod 12 are flush with the bottom surface of the second receiving groove 1012. The limiting plate 13 is disposed on the other end of the connecting rod 12. The limiting plate 13 has a circular plate structure. The limiting plate 13 is engaged with the first outer shell 2 and the second outer shell 3, and the end area of ​​the limiting plate 13 is larger than the end area of ​​the connecting rod 12.

[0042] As described above, the rod 11 is used to open the receiving slots 101, one set of receiving slots 101 includes two first receiving slots 1011, and another set of receiving slots 101 includes two second receiving slots 1012, for installing the active actuator.

[0043] The connecting rod 12 and the limiting plate 13 are used to extend the inner rod 1. The limiting plate 13 is set as a circular plate structure, and the end face area of ​​the limiting plate 13 is configured to be larger than the end face area of ​​the connecting rod 12. In this way, after the limiting plate 13 is engaged with the first outer shell 2 and the second outer shell 3, relative axial limiting can be achieved, thereby ensuring the overall structural strength.

[0044] Specifically, the connecting rod 12 is configured as a square rod structure, and the side of the connecting rod 12 is configured to be flush with the bottom surface of the first receiving groove 1011 and the second receiving groove 1012. In this way, the processing parameters can be unified during processing, which makes the processing of the receiving groove 101 and the connecting rod 12 more convenient and also helps to improve the convenience of overall integration.

[0045] like Figure 4 and Figure 5 As shown, the inner rod 1 also includes an end plate 14, and the tool holder 4 includes a connecting seat 41. The end plate 14 is disposed on the end of the rod body 11 away from the connecting rod 12, and the end plate 14 has a limiting groove 102, which is connected to the first receiving groove 1011. One end of the connecting seat 41 is connected to the tool holder 4, and the other end of the connecting seat 41 is connected to the first outer shell 2, and the connecting seat 41 is engaged in the limiting groove 102.

[0046] As described above, an end plate 14 is provided at the end of the inner rod 1 away from the connecting rod 12.

[0047] The tool holder 4 is provided with a connecting seat 41 for connecting the first housing 2.

[0048] In this structure, a limiting groove 102 is provided on the end plate 14 to provide space for installing the connecting seat 41, and the limiting groove 102 is configured to communicate with the first receiving groove 1011. This prevents interference when the first outer shell 2 and the inner rod 1 are snapped together, allowing the connecting seat 41 to directly engage with the limiting groove 102. This structure helps to limit the movement of the first outer shell 2, thereby improving the overall structural rigidity of the first outer shell 2, the connecting seat 41, and the tool holder 4, and thus improving the cutting stability of the tool head 5. Specifically, the corresponding direction of the first receiving groove 1011 is the installation direction of the first outer shell 2 and the second outer shell 3. After the installation of the first outer shell 2 and the second outer shell 3 is completed, they are connected and fixed to the inner rod 1 by bolts.

[0049] The second receiving groove 1012 is sealed by the first outer shell 2 and the second outer shell 3, and then the first outer shell 2 and the second outer shell 3 are fixed together by bolts.

[0050] like Figures 1-5 , Figure 14 and Figure 15 As shown, the inner rod 1 has a first flow channel 103 along the axis, and the knife holder 4 has a second flow channel 401. The end cap 7 is located at the end of the inner rod 1. The liquid guide tube 8 is slidably mounted on the end cap 7, and one end of the liquid guide tube 8 is connected to the first flow channel 103, and the other end of the liquid guide tube 8 is connected to the second flow channel 401.

[0051] As described above, the inner rod 1 has a first flow channel 103 along its axis for the flow of cutting fluid, and the tool holder 4 has a second flow channel 401 for receiving cutting fluid.

[0052] The end cap 7 is installed at the end of the inner rod 1 and integrates a liquid guide tube 8. The liquid guide tube 8 and the end cap 7 are configured to slide together. Thus, after the end cap 7 is connected to the end of the inner rod 1, the liquid guide tube 8 can be slid directly to connect the liquid guide tube 8 with the first flow channel 103 and the second flow channel 401.

[0053] Specifically, the inlet of the second flow channel 401 is connected to the liquid guide pipe 8, while the outlet is opened on the outer wall of the tool holder 4. The outlet is set to correspond to the tool head 5, or a guide pipe is set at the outlet and the guide pipe is set to correspond to the tool head 5, so that after the cutting fluid is supplied, the tool head 5 is cooled by spraying the cutting fluid.

[0054] like Figure 3 , Figure 4 and Figure 11 As shown, the end cap 7 includes a cover plate 71, a pressure rod 72, and a locking bolt 73. The tool holder 4 is provided with a protrusion 42. The cover plate 71 is located at the end of the inner rod 1 and has an opening 701. The pressure rod 72 is located on the cover plate 71 and spans the opening 701. The protrusion 42 passes through the opening 701. The locking bolt 73 passes through the protrusion 42 and is threadedly connected to the pressure rod 72.

[0055] As described above, in the structure of end cap 7, cover plate 71 is used to connect the end of inner rod 1, for example, by fixing it with bolts.

[0056] The cover plate 71 has an opening 701 to allow the tool holder 4 to pass. A pressure rod 72 is provided on the cover plate 71 and spans the opening 701. After the cover plate 71 is connected to the inner rod 1, the pressure rod 72 can press the tool holder 4 to ensure the stability of the structure.

[0057] The tool holder 4 is also provided with a protrusion 42. After the end cover 7 is installed, the protrusion 42 will pass through the opening 701 and abut against one side of the pressure rod 72. At this time, the locking bolt 73 is passed through the protrusion 42, and then the locking bolt 73 and the pressure rod 72 are screwed together by threads. This helps to further improve the stability of the overall structure and ensure the stability of cutting.

[0058] During the assembly process, the first outer shell 2 is first spliced ​​with the inner rod 1, and then the end cover 7 is installed so that the pressure rod 72 can be snapped onto the tool holder 4. At this time, the protrusion 42 passes through the opening 701, and then the locking bolt 73 is installed for fixation.

[0059] like Figure 9 and Figure 10As shown, a portion of the tool holder 4 is connected to the first outer shell 2, and a portion of the tool holder 4 is configured as a suspension part 43; a protrusion 42 is disposed on the suspension part 43; and a pressure rod 72 presses the suspension part 43.

[0060] As described above, in the structure of the tool holder 4, the tool holder 4 is connected to the first outer shell 2, specifically, it is connected to the first outer shell 2 through the connecting seat 41.

[0061] The tool holder 4 is partially configured as a suspension part 43, so the connecting seat 41 does not need to be large, and the limiting groove 102 used to set the connecting seat 41 does not need to be too large, which helps to avoid affecting the structural strength of the inner rod 1.

[0062] By setting the protrusion 42 on the suspension part and tightening it with the locking bolt 73, it is beneficial to ensure the structural strength of the first housing 2 and the tool holder 4 as an integrated unit.

[0063] Specifically, the pressure bar 72 presses against the suspension part 43, thereby further improving the overall structural rigidity.

[0064] like Figures 12-15 As shown, the first outer shell 2 and the second outer shell 3 are combined to form a cavity 901. The cavity 901 is located on the side of the inner rod 1 away from the cutter head 5. The connecting pipe 9 is disposed in the cavity 901, and a Y-shaped flow channel 902 is opened inside the connecting pipe 9. One port of the Y-shaped flow channel 902 is connected to the first flow channel 103, and the other two ports of the Y-shaped flow channel 902 are free ports.

[0065] As described above, after the integration of the first outer shell 2 and the second outer shell 3 is completed, the tail ends of the first outer shell 2 and the second outer shell 3 are merged to form a cavity 901 for mounting the connecting pipe 9.

[0066] Specifically, one end of the connecting pipe 9 is connected to the first flow channel 103, and the other end is used to connect to the pump to supply cutting fluid.

[0067] Specifically, a Y-shaped flow channel 902 is opened inside the connecting pipe 9. The port connected to the first flow channel 103 is the output port, and the other two ports are the input ports, for mixing at least two cutting fluids.

[0068] In some embodiments, a single flow channel is formed within the connecting pipe 9.

[0069] Specifically, the end face of the connecting tube 9 abuts against the inner rod 1, and the circumferential surface of the connecting tube 9 is in clearance fit with the first outer shell 2 and the second outer shell 3.

[0070] As described above, during assembly, the connecting tube 9 abuts against the inner rod 1 with its end face, and the circumferential surface of the connecting tube 9 does not contact the first outer shell 2 and the second outer shell 3, employing a clearance fit. This avoids affecting the stress on the cross-section and helps ensure good working accuracy.

[0071] When fixing, the other end of the connecting pipe 9 can be tightened and fixed by using a threaded cap or other structure.

[0072] The boring device of the present invention includes the above-described workpiece boring tool.

[0073] The method of applying the boring equipment of the present invention includes the following steps: S1. Vibration damping elements are arranged in the receiving groove 101 of the inner rod 1; S2. The centering inner rod 1 is clamped through the first outer shell 2 and the second outer shell 3, and the sensing element 6 is arranged on the first outer shell 2 and the tool holder 4. S3. Install the cutter head 5 on the cutter holder 4; S4. Assemble the workpiece boring tool onto the machine tool and connect the sensing element 6 to the detection equipment; S5. The machine tool drives the workpiece to rotate and feeds the workpiece boring tool so as to complete the boring of the inner hole of the workpiece through the tool head 5.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A workpiece boring tool, characterized in that: It includes an inner rod (1), a first outer shell (2), a second outer shell (3), a tool holder (4), a tool head (5), and a sensing element (6), wherein, The inner rod (1) has at least two sets of receiving grooves (101), each set of receiving grooves (101) has at least two receiving grooves (101), and the opening directions of the two sets of receiving grooves (101) are staggered in the axial view of the inner rod (1). The first outer shell (2) and the second outer shell (3) are disposed opposite to each other on the inner rod (1), and the first outer shell (2) and the second outer shell (3) seal the receiving groove (101). The tool holder (4) is disposed on the first housing (2), and the tool holder (4) and the first housing (2) are an integral structure; The cutting head (5) is disposed on the cutting head (4); The sensing element (6) is linearly arranged on the first housing (2) and the knife holder (4).

2. The workpiece boring tool as described in claim 1, characterized in that: The inner rod (1) includes a rod body (11), a connecting rod (12), and a limiting plate (13). The receiving groove (101) includes a first receiving groove (1011) and a second receiving groove (1012). The rod (11) is provided with the first receiving groove (1011) and the second receiving groove (1012). The connecting rod (12) has a square rod-shaped structure. Two sides of the connecting rod (12) are flush with the bottom surface of the first receiving groove (1011), and the other two sides of the connecting rod (12) are flush with the bottom surface of the second receiving groove (1012). The limiting plate (13) is disposed on the other end of the connecting rod (12). The limiting plate (13) has a circular plate structure. The limiting plate (13) is engaged with the first outer shell (2) and the second outer shell (3). The end area of ​​the limiting plate (13) is larger than the end area of ​​the connecting rod (12).

3. The workpiece boring tool as described in claim 2, characterized in that: The inner rod (1) further includes an end plate (14), and the tool holder (4) includes a connecting seat (41), wherein, The end plate (14) is disposed on one end of the rod body (11) away from the connecting rod (12), and the end plate (14) has a limiting groove (102) connected to the first receiving groove (1011). One end of the connecting seat (41) is connected to the knife holder (4), and the other end of the connecting seat (41) is connected to the first outer shell (2), and the connecting seat (41) is engaged in the limiting groove (102).

4. The workpiece boring tool according to any one of claims 1 to 3, characterized in that: It also includes an end cap (7) and a liquid guide tube (8). The inner rod (1) has a first flow channel (103) along its axis, and the knife holder (4) has a second flow channel (401). The end cap (7) is disposed at the end of the inner rod (1); The liquid guide tube (8) is slidably disposed on the end cap (7), and one end of the liquid guide tube (8) is connected to the first flow channel (103), and the other end of the liquid guide tube (8) is connected to the second flow channel (401).

5. The workpiece boring tool as described in claim 4, characterized in that: The end cap (7) includes a cover plate (71), a pressure rod (72), and a locking bolt (73). The tool holder (4) is provided with a protrusion (42). The cover plate (71) is disposed at the end of the inner rod (1), and the cover plate (71) is provided with an opening (701). The pressure bar (72) is disposed on the cover plate (71) and the pressure bar (72) spans the opening (701). The protrusion (42) penetrates the opening (701); The locking bolt (73) passes through the protrusion (42) and is threadedly connected to the pressure rod (72).

6. The workpiece boring tool as described in claim 5, characterized in that: A portion of the blade holder (4) is connected to the first outer shell (2), and a portion of the blade holder (4) is configured as a suspension part (43). The protrusion (42) is disposed on the suspension portion (43); The pressure bar (72) presses against the suspension part (43).

7. The workpiece boring tool as described in claim 4, characterized in that: It also includes a connecting tube (9), the first outer shell (2) and the second outer shell (3) are combined to form a cavity (901), the cavity (901) is located on the side of the inner rod (1) away from the cutter head (5); The connecting pipe (9) is disposed inside the cavity (901), and a Y-shaped flow channel (902) is provided inside the connecting pipe (9). One port of the Y-shaped flow channel (902) is connected to the first flow channel (103), and the other two ports of the Y-shaped flow channel (902) are free ports.

8. The workpiece boring tool as described in claim 7, characterized in that: The end face of the connecting tube (9) abuts against the inner rod (1), and the circumferential surface of the connecting tube (9) is in clearance fit with the first outer shell (2) and the second outer shell (3).

9. A boring device, characterized in that: Includes the workpiece boring tool as described in any one of claims 1 to 8.

10. A method for applying the boring equipment as described in claim 9, characterized in that, Includes the following steps: S1. A vibration damping element is arranged in the receiving groove (101) of the inner rod (1); S2. The inner rod (1) is clamped and centered by the first outer shell (2) and the second outer shell (3), and the sensing element (6) is arranged on the first outer shell (2) and the tool holder (4). S3. Install the cutting head (5) on the cutting head (4); S4. Assemble the workpiece boring tool onto the machine tool and connect the sensing element (6) to the detection equipment; S5. The machine tool drives the workpiece to rotate and drives the workpiece boring tool to feed, so as to complete the boring of the inner hole of the workpiece through the tool head (5).

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