A rocker drill machine boring tool

Abstract

The application discloses a rocker drill press boring tool, which comprises a supporting unit and a tool assembly, wherein the supporting unit comprises a main body, a main tool rest, an auxiliary tool rest, a pull rod and a center, the main tool rest is arranged on the side of the main body, the auxiliary tool rest is in clamping cooperation with the main body and is located above the main tool rest, the pull rod is located above the main body, and the center is located below the main body; and the tool assembly comprises a tool head, a tool body and a tool tail, the tool assembly is arranged in the main tool rest and the auxiliary tool rest, the tool head is located below the tool body, the tool body is in clamping connection with the main tool rest and the auxiliary tool rest, and the tool tail is located on the upper portion of the tool body. The beneficial effect of the application is that the stability of the tool during machining can be effectively ensured through the adjustable tool and the limiting of the upper and lower tool rests, the height and the rotation radius of the tool can be adjusted to meet workpieces of different sizes, and the tool can be adapted to more comprehensive sizes during machining of disc parts.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a boring tool for a radial drilling machine. Background Technology

[0002] Boring is a cutting process that uses the relative movement between a boring bar and a workpiece on a machine to cut the workpiece surface, removing a layer of metal and achieving a certain level of machining accuracy and surface roughness. Typically, the boring bar's rotation is the primary motion, while the movement of the boring bar or workpiece is the feed motion. It is mainly used for machining high-precision holes or for finishing multiple holes in a single positioning operation. In addition, it can be used to machine other surfaces related to hole finishing. With different tools and attachments, it can also be used for drilling and milling. Boring machines are the main equipment for machining large box-shaped parts. During machining, it is often necessary to thread parts and machine the inner rings of large discs. When machining large sizes, it is necessary to change to different equipment to complete the machining. Therefore, this invention provides a boring tool for a radial drilling machine to meet the machining needs of discs of different sizes and improve machining efficiency. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above or prior art, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a boring tool for a radial drilling machine that can adapt to discs of different sizes to complete the machining of the inner ring.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a radial drilling machine boring tool, comprising a support unit, which includes a main body, a main tool post, an auxiliary tool post, a drawbar, and a center; the main tool post is disposed on the side of the main body; the auxiliary tool post is engaged with the main body and located above the main tool post; the drawbar is located above the main body; and the center is located below the main body; and

[0007] A cutting tool assembly includes a cutting head, a cutting body, and a cutting tail. The cutting tool assembly is disposed inside the main cutting tool holder and the auxiliary cutting tool holder. The cutting head is located below the cutting body. The cutting body is engaged with the main cutting tool holder and the auxiliary cutting tool holder. The cutting tail is located above the cutting body.

[0008] As a preferred embodiment of the boring tool for a radial drilling machine according to the present invention, the main body further includes a bearing end cover, a first limiting block, a second limiting block, a limiting hole, and a limiting groove. The bearing end cover is disposed above the center point and is fixedly connected to the main body by bolts. The first limiting block and the second limiting block are respectively located on the upper and lower sides of the main tool holder. The limiting hole is disposed inside the limiting groove.

[0009] As a preferred embodiment of the boring tool for radial drilling machines according to the present invention, the main tool post includes a triangular plate that is bolted to it, an adjusting bolt disposed at its head, a first bolt hole and a second bolt hole disposed on the triangular plate, and the triangular plate is inserted between the first limiting block and the second limiting block.

[0010] As a preferred embodiment of the boring tool for radial drilling machines described in this invention, the auxiliary tool holder includes a fixing groove and a fixing block. The fixing groove engages with the tool body, and the fixing block is embedded in the main body and engages with the limiting groove of the outer ring of the main body.

[0011] As a preferred embodiment of the radial drilling machine boring tool of the present invention, the fixing groove is provided with fixing teeth, the outer side of the fixing block includes an adjustment hole and an adjustment bolt, and the adjustment bolt is disposed inside the adjustment hole.

[0012] As a preferred embodiment of the radial drilling machine boring tool of the present invention, the pull rod includes a tapered surface, a pull head, and a connecting cover. The pull head is disposed above the pull rod, the tapered surface is disposed in the middle of the pull rod, and the connecting cover is disposed below the pull rod and is fixedly connected to the main body by bolts.

[0013] As a preferred embodiment of the boring tool for a radial drilling machine according to the present invention, the center includes a center rod and a center bearing, the center rod engaging with the center bearing, and the center bearing engaging with the main body.

[0014] As a preferred embodiment of the boring tool for a radial drilling machine according to the present invention, the center bearing includes an outer bearing ring, an inner bearing ring, and a cover. The inner bearing ring engages with the center rod, and the cover is disposed between the outer bearing ring and the inner bearing ring.

[0015] As a preferred embodiment of the radial drilling machine boring tool of the present invention, the tool body further includes a sliding groove disposed in its middle, a retaining tooth disposed on its side, and a limiting tooth disposed on its upper part.

[0016] As a preferred embodiment of the boring tool for the radial drilling machine described in this invention, the sliding groove includes a sliding plate disposed on its surface, a threaded hole disposed on the sliding plate, and a sliding block disposed inside it.

[0017] The beneficial effects of this invention are as follows: This invention, through an adjustable cutting tool and limited by two tool holders (upper and lower), can effectively ensure the stability of the cutting tool during machining. The adjustment of the tool height and rotation radius can meet the needs of workpieces of different sizes. When machining parts such as discs, it can adapt to a wider range of sizes, reduce errors and inefficiencies caused by machining size limitations during machining, and improve machining efficiency. In addition, the adjustable cutting tool is also replaceable, which can meet the needs of different machining intensities. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments 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. Wherein:

[0019] Figure 1 This is a structural diagram of the boring tool on a radial drilling machine.

[0020] Figure 2 This is a side and top view of the overall structure of the boring tool on a radial drilling machine.

[0021] Figure 3 This is a diagram of the tool structure for boring tools on a radial drilling machine.

[0022] Figure 4 This is a front view of the overall structure of the boring tool on a radial drilling machine.

[0023] Figure 5 Left view of the overall structure of the boring tool on a radial drilling machine.

[0024] Figure 6 This is a top view of the overall structure of the boring tool on a radial drilling machine.

[0025] Figure 7 This is a rear view of the overall structure of the boring tool on a radial drilling machine.

[0026] Figure 8 This is a right view of the overall structure of the boring tool on a radial drilling machine.

[0027] Figure 9 This is a lower view of the overall structure of the boring tool on a radial drilling machine.

[0028] Figure 10 This is a schematic diagram of the center structure of the boring tool on a radial drilling machine.

[0029] Figure 11 This is a schematic diagram of the upper part of the center of the boring tool on a radial drilling machine.

[0030] Figure 12 This is a force analysis diagram of the boring tool head on a radial drilling machine.

[0031] Figure 13 This is a force analysis diagram of the boring tool body of a radial drilling machine.

[0032] Figure 14 This is a force analysis diagram of the boring tool body of a radial drilling machine along the circumferential radius.

[0033] Figure 15 This is a force analysis diagram of the vertical direction of the boring tool body on a radial drilling machine.

[0034] Figure 16 This is a force analysis diagram of the boring main tool post of a radial drilling machine.

[0035] Figure 17 This is a force analysis diagram of the auxiliary tool holder and main body of a radial drilling machine for boring. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0039] Example 1

[0040] Reference Figures 1-3 This is the first embodiment of the present invention, which provides a boring tool for a radial drilling machine that can solve the problem of not being able to meet the machining dimensions when machining discs of different sizes.

[0041] Specifically, the support unit 100 includes a main body 101, a main tool holder 102, an auxiliary tool holder 103, a pull rod 104, and a tip 105. The main tool holder 102 is located on the side of the main body 101. The auxiliary tool holder 103 is engaged with the main body 101 and is located above the main tool holder 102. The pull rod 104 is located above the main body 101, and the tip 105 is located below the main body. The support unit 100 also includes a cutting tool assembly 200, which includes a cutting head 201, a cutting body 202, and a cutting tail 203. The cutting tool assembly 200 is located inside the main tool holder 102 and the auxiliary tool holder 103. The cutting head 201 is located below the cutting body 202. The cutting body 202 is engaged with the main tool holder 102 and the auxiliary tool holder 103, and the cutting tail 203 is located above the cutting body 202.

[0042] In use, the support unit 100 is pulled into the spindle of the machine tool using a machine tool. The machine tool spindle securely positions the entire support unit on the spindle by pulling the tie rod 104. The main body 101 provides the assembly position for each component. The main tool holder 102 is fixed to the main body 101, and the external structure of the main tool holder 102 is triangular. When subjected to shearing force from the tool assembly 200, the triangular structure can extend the lever arm of the force, reducing the impact of the shearing force on the main tool holder 102 and improving the stability of the device. The auxiliary tool holder 103 is located above the main tool holder 102 and engages with the main body 101. The part where the auxiliary tool holder 103 connects to the main body 101 is a circular structure, while the part connecting to the tool assembly 200 is circular. The connecting part has an "A"-shaped structure, which facilitates height adjustment. The longer sides of the "A" shape can disperse the shearing force received from the tool assembly 200, reducing local pressure and improving the stability of the device. The tip 105 can contact the center of the disc and fix it to ensure smooth processing. The tool assembly 200 is connected to the main tool holder 102 and the auxiliary tool holder 103. Both the main tool holder 102 and the auxiliary tool holder 103 are in contact with the tool body 202, which can ensure that the tool body 202 is always in a straight position. The tool body 202 and the main tool holder 102 and the auxiliary tool holder 103 are movable and can adjust the position of the tool assembly 200 relative to the spindle center, thereby adjusting the processing radius.

[0043] Example 2

[0044] Reference Figures 1-11 This is the second embodiment of the present invention, which differs from the first embodiment in that: the main body 101 further includes a bearing end cap 101a, a first limiting block 101b, a second limiting block 101c, a limiting hole 101d, and a limiting groove 101e. The bearing end cap 101a is disposed above the tip 105 and is fixedly connected to the main body 101 by bolts. The first limiting block 101b and the second limiting block 101c are respectively located on the upper and lower sides of the main tool holder 102. The limiting hole 101d is disposed inside the limiting groove 101e.

[0045] Furthermore, the main tool holder 102 includes a triangular plate 102a bolted thereto, an adjusting bolt 102a-1 disposed at its head, a first bolt hole 102a-11 and a second bolt hole 102a-12 disposed on the triangular plate 102a, and the triangular plate 102a is inserted between the first limiting block 101b and the second limiting block 101c.

[0046] Preferably, the auxiliary blade holder 103 includes a fixing groove 103a and a fixing block 103b. The fixing groove 103a engages with the blade body 202, and the fixing block 103b is embedded in the main body 101 and engages with the limiting groove 101e of the outer ring of the main body 101.

[0047] Preferably, the fixing groove 103a is provided with fixing teeth 103a-1, and the outer side of the fixing block 103b includes an adjusting hole 103b-1 and an adjusting bolt 103b-2, with the adjusting bolt 103b-2 disposed inside the adjusting hole 103b-1.

[0048] Furthermore, the pull rod 104 includes a tapered surface 104a, a pull head 104b, and a connecting cover 104c. The pull head 104b is disposed above the pull rod 104, the tapered surface 104a is disposed in the middle of the pull rod 104, and the connecting cover 104c is disposed below the pull rod 104 and is fixedly connected to the main body 101 by bolts.

[0049] Preferably, the tip 105 includes a tip rod 105a and a tip bearing 105b. The tip rod 105a engages with the tip bearing 105b, and the tip bearing 105b engages with the main body 101. The tip bearing 105b includes an outer bearing ring 105b-1, an inner bearing ring 105b-2, and a cover 105b-3. The inner bearing ring 105b-2 engages with the tip rod 105a, and the cover 105b-3 is disposed between the outer bearing ring 105b-1 and the inner bearing ring 105b-2.

[0050] In use, the bearing end cap 101a fixes the center bearing 105b, which engages with the center rod 105a on the center 105, inside the main body 101. This ensures that the center 105 will not fall off the main body 101, and simultaneously ensures the relative movement between the center 105 and the disc to be processed, improving processing accuracy and efficiency. The gap between the first limiting block 101b and the second limiting block 101c allows the triangular plate 102a to be inserted, ensuring complete docking between the triangular plate 102a and the main tool holder 102, and supporting the triangular plate 102a to ensure its straightness in the horizontal direction. A first screw is provided on the triangular plate 102a. Bolt holes 102a-11 and second bolt holes 102a-12 allow the triangular plate 102a and the main tool holder 102 to be fixed together by bolts, ensuring that the tool assembly 200 will not fall off from its interior. The auxiliary tool holder 103 engages with the upper part of the tool assembly 200. The auxiliary tool holder 103 has a fixing groove 103a inside, and the fixing teeth 103a-1 on the fixing groove 103a engage with the tool body 202. The fixing block 103b engages with the limiting groove 101e on the main body 101. The contact parts of the two are all triangular structures. When subjected to lateral torque, the waists of the triangular bodies can fit together to provide a reverse torque. The torque ensures the stability of the device. The adjustment hole 103b-1 and adjustment bolt 103b-2 on the outside of the fixing block 103b can be positioned after the auxiliary tool holder 103 has moved up and down to determine its position. By tightening the adjustment bolt 103b-2 and engaging it with the limiting hole 101d on the main body 101, the auxiliary tool holder 103 can be fixed. The ring structure of the auxiliary tool holder 103 fits on the main body 101 and is in close contact with the outer wall of the main body 101, which can ensure that the auxiliary tool holder 103 does not deflect in the vertical direction. The mutual coordination of the above-mentioned mating structures ensures the processing stability of the auxiliary tool holder 103. When the device is pulled up, the pull head above the pull rod 104 104b is pulled upward by the main shaft, which allows the conical surface 104a below it to fit into the interior of the main shaft, ensuring the vertical stability of the device. The connecting cover 104c is fixed to the main body 101 by bolts. Therefore, when the pull rod 104 is pulled up, the main body 101 is also pulled up. The top bearing 105b inside the top 105 located below the main body 101 engages with the main body, while the bearing end cover 101a located below the main body 101 presses it inward to prevent it from falling off. The inner bearing ring 105b-2 of the top bearing 105b engages with the top rod 105a, and the outer bearing ring 105b-1 engages with the main body 101.

[0051] Example 3

[0052] Reference Figures 1-11This is the third embodiment of the present invention, which is based on the first two embodiments: the blade 202 further includes a sliding groove 202a disposed in its middle, a retaining tooth 202b disposed on its side, and a limiting tooth 202c disposed on its upper part. The sliding groove 202a includes a sliding plate 202a-1 disposed on its surface, a threaded hole 202a-2 disposed on the sliding plate 202a-1, and a sliding block 202a-3 disposed inside it.

[0053] The tool assembly 200 includes a cutting head 201, a cutting body 202, and a cutting tail 203. The cutting head 201 is used to contact the disc workpiece for cutting. The cutting body 202 is used to fix the entire tool assembly 200. The cutting tail 203 is used to keep the cutting body 202 stable. The upper part of the cutting body 202 is combined with the auxiliary tool holder 103. The upper part of the cutting body 202 is provided with a limiting tooth 202c, which can engage with the fixing tooth 103a-1 inside the auxiliary tool holder 103 to improve resistance to the lateral torque generated by machining. The main tool holder 102 is combined with the triangular plate 102a, which also has a similar rack inside. Unlike the auxiliary tool holder 103, the rack is a transverse rack, which engages with the locking tooth 202b on the cutting body to resist... The torque from the circumferential radius direction improves the stability of the device. The sliding groove 202a inside the blade 202 is provided with a sliding plate 202a-1, which is set on both sides of the blade 202 to ensure the linear movement of the sliding plate 202a-1. The threaded hole 202a-2 is combined with the adjusting bolt 102a-1 on the main tool holder 102, which can adjust the position of the tool assembly 200 by rotation. In use, the auxiliary tool holder 103 is first moved up and separated from the blade. After the position of the blade is adjusted, the lower part of the auxiliary tool holder 103 is engaged with the blade 202 to complete the fixation of the tool assembly 200. The sliding block 202a-3 and the sliding plate 202a-1 are fixedly connected to form an "I"-shaped slider, which engages with the blade 202.

[0054] In summary, this invention, through an adjustable cutting tool and limiting it with two tool holders (upper and lower), effectively ensures the stability of the cutting tool during machining. The adjustment of the tool height and rotation radius can accommodate workpieces of different sizes, and can adapt to a wider range of sizes when machining parts such as discs. This reduces errors and inefficiencies caused by machining size limitations during machining, improves machining efficiency, and the adjustable cutting tool is also replaceable, which can meet the needs of different machining intensities.

[0055] Example 4

[0056] Reference Figures 12-17This is the fourth embodiment of the present invention, which, based on the first three embodiments, further includes a force analysis of the cutting head. As shown in the figure, the force F received by the cutting head is divided into three forces F1, F2, and F3: F1 is a force in the tangential direction, F2 is a force in the circumferential radius direction, and F3 is an upward vertical impact force. Since the component of F in each direction is less than F, controlling the torque and force during machining becomes crucial for increasing tool life. Regarding F1, which is the main component in the tangential circumferential direction, when it exerts a circumferential tangential force on the tool body 202, refer to... Figure 13 The force received by the blade is the force transmitted from the blade tip 201, which forms a fulcrum at the main blade holder 102. This causes the force F1-2 on the upper part of the auxiliary blade holder 103 to be in the opposite direction to F1. At the upper part of the main blade holder 102, a force F1-1 opposite to the tangential direction is formed, while at the lower part, a reaction force F1-11 in the same tangential direction is formed. The combined force of the two forces can cancel out most of F1. Because the main blade holder 102 and the auxiliary blade holder 103 work together to reduce the torque, the torsional strength of the blade is increased, reducing the risk of breakage.

[0057] Regarding the force in the circumferential radius direction, the toothed structures inside the main tool holder 102 and the auxiliary tool holder 103 are visible, one horizontal and one vertical. The force analysis of the parts where these two parts contact the blade 202 is shown below. Figure 14 The blade forms a lever on the main blade holder 102. After receiving the shearing force F2-1 from F2, the blade 202 is pried outwards. At this time, the teeth at the junction of the blade 202 and the main blade holder 102 mesh with each other to cancel out the torque F2-1. At the same time, the junction of the blade 202 and the auxiliary blade holder 103 is a vertical toothed structure. The contact surface of the two can provide a reverse force to cancel out the torque along the circumferential radius, which increases the stress limit of the blade tip 201, reduces the risk of breakage, and maintains vertical stability.

[0058] For vertical jumps, refer to Figure 15 The interaction between the transverse teeth of the main tool holder 102 and the tool body 202 generates a counteracting force in the vertical direction, improving machining stability, reducing tool runout during machining processes, and resulting in higher precision of the machined surface. The main tool holder 102 is designed with a triangular structure, as shown in the reference... Figure 16 It mainly receives the force in the tangential direction from the cutting tool. Through the two sides of the triangular structure, it directly provides a reverse force F1-12 and F1-13 to the main tool holder 102. Through the action of counteracting and resisting, it reduces the torque acting directly on the circumference of the main tool holder 102, improves the torsional resistance of the main tool holder 102, and improves the mechanical strength during machining. As for the auxiliary tool holder 103 that cooperates with the main body 101, its force analysis is as follows: Figure 17As shown, when faced with a tangential force F1, it can be counteracted internally, greatly increasing the stability of the device. After the counteracting of each stage, the original torque that the tool could withstand was 1600 Nm, and the maximum operating speed was 2250 r / min. However, the improved tool, with the same material, can withstand 3250 r / min within the torque range of 1600 Nm, making the processing faster.

[0059] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A boring tool for a radial drilling machine, characterized in that: include, A support unit (100) includes a main body (101), a main tool holder (102), an auxiliary tool holder (103), a pull rod (104), and a tip (105). The main tool holder (102) is located on the side of the main body (101). The auxiliary tool holder (103) engages with the main body (101) and is located above the main tool holder (102). The pull rod (104) is located above the main body (101), and the tip (105) is located below the main body. A cutting tool assembly (200) includes a cutting head (201), a cutting body (202), and a cutting tail (203). The cutting tool assembly (200) is disposed inside the main cutting post (102) and the auxiliary cutting post (103). The cutting head (201) is located below the cutting body (202). The cutting body (202) is engaged with the main cutting post (102) and the auxiliary cutting post (103). The cutting tail (203) is located above the cutting body (202). The main tool holder (102) includes a triangular plate (102a) bolted to the main tool holder (102), an adjusting bolt (102a-1) disposed at the head of the main tool holder (102), and a first bolt hole (102a-11) and a second bolt hole (102a-12) disposed on the triangular plate (102a). The auxiliary blade holder (103) includes a fixing groove (103a) and a fixing block (103b). The fixing groove (103a) engages with the blade body (202), and the fixing block (103b) is embedded in the main body (101) and engages with the limiting groove (101e) of the outer ring of the main body (101). The fixing groove (103a) is provided with fixing teeth (103a-1), and the outside of the fixing block (103b) includes an adjustment hole (103b-1) and an adjustment bolt (103b-2), and the adjustment bolt (103b-2) is provided inside the adjustment hole (103b-1); The blade (202) also includes a sliding groove (202a) disposed in the middle of the blade (202), a retaining tooth (202b) disposed on the side of the blade (202), and a limiting tooth (202c) disposed on the upper part of the blade (202). The sliding groove (202a) includes a sliding plate (202a-1) disposed on the surface of the sliding groove (202a), a threaded hole (202a-2) disposed on the sliding plate (202a-1), and a sliding block (202a-3) disposed inside the sliding groove (202a).

2. The boring tool for a radial drilling machine as described in claim 1, characterized in that: The main body (101) also includes a bearing end cap (101a), a first limiting block (101b), a second limiting block (101c), a limiting hole (101d), and a limiting groove (101e). The bearing end cap (101a) is disposed above the tip (105) and is fixedly connected to the main body (101) by bolts. The first limiting block (101b) and the second limiting block (101c) are respectively located on the upper and lower sides of the main tool holder (102). The limiting hole (101d) is disposed inside the limiting groove (101e).

3. The boring tool for a radial drilling machine as described in claim 2, characterized in that: The triangular plate (102a) is inserted between the first limiting block (101b) and the second limiting block (101c).

4. The boring tool for a radial drilling machine as described in any one of claims 1 to 3, characterized in that: The pull rod (104) includes a tapered surface (104a), a pull head (104b), and a connecting cover (104c). The pull head (104b) is located above the pull rod (104), the tapered surface (104a) is located in the middle of the pull rod (104), and the connecting cover (104c) is located below the pull rod (104) and is fixedly connected to the main body (101) by bolts.

5. The boring tool for a radial drilling machine as described in claim 4, characterized in that: The tip (105) includes a tip rod (105a) and a tip bearing (105b), the tip rod (105a) and the tip bearing (105b) engaging with each other, and the tip bearing (105b) engaging with the main body (101).

6. The boring tool for a radial drilling machine as described in claim 5, characterized in that: The top bearing (105b) includes an outer bearing ring (105b-1), an inner bearing ring (105b-2), and a cover (105b-3). The inner bearing ring (105b-2) engages with the top rod (105a), and the cover (105b-3) is disposed between the outer bearing ring (105b-1) and the inner bearing ring (105b-2).

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