Boring tool and boring device

Abstract

A boring tool and a boring device, the boring tool comprises a tool holder, a first tool head and a second tool head, the tool holder comprises a support rod, a first support seat and a second support seat, the support rod extends along a first direction, in the first direction, the first support seat and the second support seat are respectively connected to two ends of the support rod; the first tool head and the second tool head are respectively arranged on the first support seat and the second support seat through an adjusting structure, the adjusting structure is used for adjusting the distance between the first tool head and / or the second tool head and the support rod in a second direction, the first direction is perpendicular to the second direction. In this application, by setting the adjusting structure, the distance between the first tool head and the second tool head and the support rod in the second direction can be adjusted, and the versatility of the boring tool is improved. The boring tool has a first tool head and a second tool head, and the double tool heads enter the upper and lower bearing holes of the gear box at the same time, which can reduce the machining error of the upper and lower bearing holes and prolong the service life of the equipment.

Description

Technical Field

[0001] This application relates to the field of machining technology, specifically to a boring tool and a boring device. Background Technology

[0002] Wind power, as a renewable energy source, has advantages over thermal power, solar power, and hydropower, including lower construction costs, smaller footprint, and easier maintenance. The wind turbine gearbox is a crucial transmission mechanism in a wind turbine unit, its main function being to transmit the power generated by the wind turbine rotor to the generator, ensuring it reaches the appropriate rotational speed. To improve the dimensional accuracy, shape accuracy, and surface quality of the bearing holes on the wind turbine gearbox, boring tools are required for machining.

[0003] In related technologies, the position of the boring tool head is relatively fixed, making it difficult to flexibly adjust the relative position between the tool head and the tool body when facing the machining requirements of bearing holes of different specifications. Alternatively, when machining the upper and lower bearing holes, the tool needs to machine the upper bearing hole first and then the lower bearing hole, resulting in a large concentricity error between the upper and lower bearing holes, leading to high noise in the wind turbine gearbox and a limited service life. Utility Model Content

[0004] The purpose of this application is to provide a boring tool and a boring device to solve the problems that boring tools cannot process bearing holes of different sizes and that the concentricity error of the upper and lower bearing holes is large.

[0005] To achieve the objectives of this application, the following technical solution is provided:

[0006] In a first aspect, this application provides a boring tool, comprising:

[0007] The tool holder includes a support rod, a first support base, and a second support base. The support rod extends along a first direction, and the first support base and the second support base are respectively connected to both ends of the support rod in the first direction.

[0008] A first cutting head and a second cutting head are respectively mounted on a first support base and a second support base via an adjustment structure. The adjustment structure is used to adjust the distance between the first cutting head and / or the second cutting head and the support rod in a second direction, wherein the first direction is perpendicular to the second direction.

[0009] In one embodiment, the adjustment structure includes a slide, a first mounting base, and a first fastener, wherein the slide is disposed on the first support base, and the first cutter head is disposed on the first mounting base;

[0010] The slide block is provided with a first adjustment hole extending along the second direction, the first mounting base is provided with a first fixing hole, the first fastener is inserted into the first fixing hole and the first adjustment hole, and the first fastener is movable in the first adjustment hole.

[0011] In one embodiment, the slide is provided with a first limiting groove, and the first mounting base is provided with a first limiting protrusion. Both the first limiting groove and the first limiting protrusion extend along the second direction, and the first limiting protrusion is disposed in the first limiting groove.

[0012] In one embodiment, the adjustment structure further includes a second fastener. The first support base is provided with a first sliding groove and a second adjustment hole extending along the second direction. The slide base is provided with a first sliding part and a second fixing hole. The first sliding part is slidably disposed in the first sliding groove. The second fastener is inserted into the second fixing hole and the second adjustment hole, and the second fastener is movable in the second adjustment hole.

[0013] In one embodiment, the adjustment structure further includes a second mounting base and a third fastener. The second cutter head is disposed on the second mounting base, the second mounting base is provided with a third fixing hole, the second support base is provided with a third adjustment hole extending along the second direction, the third fastener is inserted into the third fixing hole and the third adjustment hole, and the third fastener is movable in the third adjustment hole.

[0014] In one embodiment, the second support base is provided with a second limiting groove, and the second mounting base is provided with a second limiting protrusion. Both the second limiting groove and the second limiting protrusion extend along the second direction, and the second limiting protrusion is disposed in the second limiting groove.

[0015] In one embodiment, the adjustment structure further includes a fourth fastener, the support rod is provided with a second sliding groove and a fourth fixing hole, the second support base is provided with a second sliding part and a plurality of fifth fixing holes, the second sliding part is slidably disposed in the second sliding groove, the plurality of fifth fixing holes are spaced apart in the second direction, and the fourth fastener is inserted into the fourth fixing hole and one of the fifth fixing holes.

[0016] Secondly, this application also provides a boring device, including a machine tool, a clamping fixture and a boring tool according to any one of the various embodiments of the first aspect, wherein the first support is provided with a boring head, the clamping fixture is used to clamp a gearbox, the boring head is connected to the spindle of the machine tool, and the machine tool drives the first cutting head and the second cutting head of the boring tool to extend into the first bearing hole and the second bearing hole of the gearbox, respectively.

[0017] In one embodiment, the clamping fixture includes a placement plate and a plurality of clamping components. The placement plate is provided with positioning holes, which are coaxially arranged with the first bearing hole and the second bearing hole of the gearbox. The plurality of clamping components are spaced apart in the circumferential direction of the positioning holes.

[0018] In one embodiment, the clamping assembly includes a first connecting rod, a second connecting rod, a screw, and a nut. One end of the first connecting rod is fixedly connected to the placement plate, and the other end of the first connecting rod is connected to one end of the second connecting rod. The other end of the second connecting rod is used to abut against the gearbox.

[0019] The second connecting rod has a through hole, one end of the screw is fixed to the placement plate, and the other end of the screw passes through the through hole and is threadedly connected to the nut.

[0020] Compared with the prior art, this application has at least the following beneficial effects:

[0021] 1. In this application, the boring tool is equipped with an adjustment structure, which allows the distance between the first and second cutting heads and the support rod in the second direction to be adjusted. In actual machining, when faced with the machining requirements of holes of different diameters, it is not necessary to change the entire set of tools. Simply adjusting the position of the cutting heads by adjusting the structure can achieve the machining of holes of different specifications, thereby improving the versatility of the boring tool and significantly improving production efficiency.

[0022] 2. In this application, the boring tool has a first cutting head and a second cutting head. When the tool holder rotates, the first cutting head and the second cutting head can rotate synchronously. When machining the upper and lower bearing holes, the two cutting heads enter the upper and lower bearing holes of the gearbox at the same time, which can reduce the machining error of the upper and lower bearing holes, thereby reducing abnormal vibration and noise generated when the gearbox is running and extending the service life of the equipment.

[0023] 3. In this application, the simultaneous machining of two bearing holes is achieved through the coordinated action of the dual-head synchronous machining and the clamping fixture, thus eliminating the cumulative error caused by multiple clamping or step-by-step operations. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is an exploded view of a gearbox according to one embodiment of this application;

[0026] Figure 2This is a perspective view of a boring tool according to one embodiment of this application;

[0027] Figure 3 This is a front view of a boring tool according to one embodiment of this application;

[0028] Figure 4 This is an exploded view of a portion of the structure of a boring tool according to one embodiment of this application;

[0029] Figure 5 for Figure 4 Another structural diagram from another perspective;

[0030] Figure 6 This is an exploded view of another part of the structure of a boring tool according to one embodiment of this application;

[0031] Figure 7 This is a perspective view of a gearbox and boring device according to one embodiment of this application;

[0032] Figure 8 This is a perspective view of a clamping fixture according to one embodiment of this application;

[0033] Figure 9 This is a perspective view of a clamping assembly according to one embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Gearbox; 110. First bearing hole; 120. Second bearing hole; 200. Tool holder; 210. Support rod; 211. Second slide groove; 212. Fourth fixing hole; 220. First support base; 221. First slide groove; 222. Second adjusting hole; 223. Boring head; 230. Second support base; 231. Third adjusting hole; 232. Second limiting groove; 233. Second sliding part; 234. Fifth fixing hole; 310. First cutting head; 320. Second cutting head; 410. Slide; 411. First adjusting hole; 412. 413. First limiting groove; 414. First sliding part; 420. Second fixing hole; 421. First mounting base; 422. First limiting protrusion; 430. Second mounting base; 431. Third fixing hole; 432. Second limiting protrusion; 440. Fourth fastener; 500. Clamping fixture; 510. Placement plate; 511. Positioning hole; 520. Clamping assembly; 521. First connecting rod; 522. Second connecting rod; 523. Screw; 524. Nut; 525. Through hole; X, First direction; Y, Second direction. Detailed Implementation

[0036] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0037] refer to Figure 1 A gearbox 100 is an important mechanical device that transmits, converts, and changes speed and torque, and is widely used in many fields such as automobiles, ships, wind power, and construction machinery. The gearbox 100 consists of a housing, a cover, and components such as a gear transmission mechanism, shaft system, and bearings installed inside the housing. The housing serves as the basic support, providing installation space and positioning reference for internal parts; the gear transmission mechanism realizes power transmission and speed change; the shaft system supports the gears and transmits motion and power; and the bearings support the shafts and reduce friction. Specifically, the cover has a first bearing hole 110, and the housing has a second bearing hole 120, both for mounting bearings.

[0038] refer to Figures 2-6 This application provides a boring tool, including a tool holder 200, a first cutting head 310 and a second cutting head 320.

[0039] The tool holder 200 includes a support rod 210, a first support base 220, and a second support base 230. The support rod 210 extends along a first direction X, and the first support base 220 and the second support base 230 are respectively connected to both ends of the support rod 210 in the first direction X. The support rod 210 is the basic component of the tool holder 200, and can be implemented using a square column-shaped metal rod, whose axial extension characteristics provide a stable mechanical reference for the cutting tool. The first support base 220 and the second support base 230 refer to the mounting platforms set at both ends of the support rod 210, used to support the cutting head and the adjustment structure. The adjustment structure refers to the mechanical device that controls the movement of the cutting head, changing the radial position of the cutting head through physical displacement.

[0040] The first cutter head 310 and the second cutter head 320 are respectively mounted on the first support base 220 and the second support base 230 through an adjustment structure. The adjustment structure is used to adjust the distance between the first cutter head 310 and / or the second cutter head 320 and the support rod 210 in the second direction Y. The first direction X is perpendicular to the second direction Y.

[0041] When machining bearing holes of different diameters, the adjusting structure drives the first cutter head 310 to move along the second direction Y, changing its distance from the support rod 210; the second cutter head 320 can be adjusted synchronously or independently. When the tool holder 200 rotates, the first cutter head 310 and the second cutter head 320 can rotate synchronously. When machining the upper and lower bearing holes, both cutters simultaneously enter the upper and lower bearing holes of the gearbox 100, reducing machining errors in the upper and lower bearing holes, thereby reducing abnormal vibration and noise generated during gearbox 100 operation and extending the service life of the equipment.

[0042] In this application, the boring tool incorporates an adjustment structure that allows for adjustment of the distance between the first cutting head 310, the second cutting head 320, and the support rod 210 in the second direction Y. In actual machining, when faced with the need to machine holes of different diameters, it is not necessary to replace the entire tool set; simply adjusting the cutting head position via the adjustment structure allows for the machining of holes of different specifications, improving the versatility of the boring tool and thus significantly increasing production efficiency.

[0043] The adjustment structure includes a slide 410, a first mounting base 420, and a first fastener. The slide 410 is mounted on the first support base 220, and the first cutter head 310 is mounted on the first mounting base 420. The slide 410 has a first adjustment hole 411 extending along the second direction Y. The first mounting base 420 has a first fixing hole 421. The first fastener is inserted into the first fixing hole 421 and the first adjustment hole 411, and the first fastener can move within the first adjustment hole 411. The slide 410 is a load-bearing component connected to the first support base 220, and can be implemented as a metal block with a mounting surface, providing a movable base for the first mounting base 420. The first adjustment hole 411 is an elongated hole structure extending along the second direction Y, used to define the movement path of the first fastener. The first fixing hole 421 can be implemented as a threaded hole or a smooth hole, used to cooperate with the first fastener to achieve position locking. The first fastener refers to the mechanical connector used to connect the slide 410 and the first mounting base 420. Specifically, it can be implemented by a combination of bolts and nuts 524, and the relative fixation of the slide 410 and the first mounting base 420 can be achieved by tightening.

[0044] Specifically, the slide 410 is mechanically fixed to the surface of the first support 220, forming an adjustable base platform. The first mounting base 420 is connected to the slide 410 via a first fastener. The first fastener passes through the first adjustment hole 411 and the first fixing hole 421, and is then tightened to lock them together. When it is necessary to adjust the position of the first cutter head 310, the first fastener can be loosened, allowing the first mounting base 420 to move along the length direction of the first adjustment hole 411, thereby causing the first cutter head 310 to be displaced in the second direction Y. After adjustment, the first fastener is tightened again to fix the position of the first cutter head 310. The extension direction of the first adjustment hole 411 is consistent with the second direction Y, ensuring that the movement path of the cutter head is straight and avoiding positional deviation.

[0045] refer to Figure 4 , Figure 5 and Figure 6The slide block 410 is provided with a first limiting groove 412, and the first mounting base 420 is provided with a first limiting protrusion 422. Both the first limiting groove 412 and the first limiting protrusion 422 extend along the second direction Y, and the first limiting protrusion 422 is disposed in the first limiting groove 412. The first limiting groove 412 refers to the groove structure on the slide block 410 extending along the second direction Y, and the first limiting protrusion 422 refers to the protrusion structure on the first mounting base 420 that matches the shape of the first limiting groove 412. After being embedded in the first limiting groove 412, they form a sliding pair.

[0046] Specifically, when adjusting the distance between the first cutter head 310 and the support rod 210, the first limiting protrusion 422 slides along the extension direction of the first limiting groove 412, so that the first mounting base 420 retains only the linear movement degree of freedom in the second direction Y. After the first fastener is tightened, the cooperation between the first limiting groove 412 and the first limiting protrusion 422 further increases the contact area and improves the connection stability between the first mounting base 420 and the slide block 410.

[0047] In one embodiment, the adjustment structure further includes a second fastener. The first support base 220 is provided with a first sliding groove 221 and a second adjustment hole 222 extending along the second direction Y. The slide 410 is provided with a first sliding part 413 and a second fixing hole 414. The first sliding part 413 is slidably disposed in the first sliding groove 221. The second fastener is inserted into the second fixing hole 414 and the second adjustment hole 222, and the second fastener is movable in the second adjustment hole 222. The second fastener refers to a locking component used to connect the slide 410 and the first support base 220, specifically a bolt or screw, which generates axial pressure through thread engagement to achieve fixation. The first sliding groove 221 is a guide structure formed on the first support base 220, specifically a rectangular groove or a dovetail groove, used to limit the movement direction of the slide 410. The second adjustment hole 222 is an elongated hole extending along the second direction Y, specifically an oblong hole, allowing the second fastener to slide within the hole to adjust the position of the slide 410. The first sliding part 413 refers to the protruding structure provided on the slide block 410, which can be implemented by a slider or guide rail, and forms a sliding pair with the first sliding groove 221.

[0048] Specifically, the slide 410 is embedded in the first slide groove 221 via the first sliding part 413, allowing the slide 410 to move only in a straight line along the second direction Y. After the second adjustment hole 222 is aligned with the second fixing hole 414, the second fastener passes through them to form a slidable connection. When the position of the cutter head needs to be adjusted, the second fastener is in a loose state, and the slide 410 moves along the first slide groove 221 to the target position. Then, the second fastener is tightened to press the slide 410 against the contact surface of the first support seat 220, achieving rigid fixation. The guiding effect of the first slide groove 221 ensures the accurate movement trajectory of the slide 410, and the length of the second adjustment hole 222 limits the maximum adjustment range of the slide 410. The combination of the two ensures both the degree of freedom of adjustment and prevents the slide 410 from shifting.

[0049] The adjustment structure also includes a second mounting base 430 and a third fastener. The second cutter head 320 is mounted on the second mounting base 430, which has a third fixing hole 431. The second support base 230 has a third adjustment hole 231 extending along the second direction Y. The third fastener is inserted into the third fixing hole 431 and the third adjustment hole 231, and can move within the third adjustment hole 231. Specifically, the second cutter head 320 is movably connected to the second support base 230 via the second mounting base 430. The third adjustment hole 231, extending along the second direction Y, provides a guiding reference for adjusting the cutter head position. When the third fastener is loose, the second mounting base 430 can move along the length of the third adjustment hole 231, causing the second cutter head 320 to displace in the second direction Y. After adjustment, tightening the third fastener forms a rigid connection between the second mounting base 430 and the second support base 230, thereby fixing the position of the second cutter head 320. The second cutting head 320 has the same independent adjustment capability as the first cutting head 310 through the cooperation structure between the second mounting base 430 and the third adjustment hole 231.

[0050] The second support base 230 is provided with a second limiting groove 232, and the second mounting base 430 is provided with a second limiting protrusion 432. Both the second limiting groove 232 and the second limiting protrusion 432 extend along the second direction Y, and the second limiting protrusion 432 is disposed in the second limiting groove 232. Specifically, when the third fastener moves in the third adjusting hole 231, the second mounting base 430 drives the second limiting protrusion 432 to slide along the extending direction of the second limiting groove 232. The contact surface between the second limiting groove 232 and the second limiting protrusion 432 forms a physical constraint, so that the position adjustment of the second cutter head 320 in the second direction Y retains only a single degree of freedom. When the third fastener is locked, the cooperation between the second limiting groove 232 and the second limiting protrusion 432 further increases the contact area and improves the connection stability between the second mounting base 430 and the second support base 230.

[0051] The adjustment structure also includes a fourth fastener 440. The support rod 210 has a second sliding groove 211 and a fourth fixing hole 212. The second support base 230 has a second sliding part 233 and multiple fifth fixing holes 234. The second sliding part 233 is slidably disposed in the second sliding groove. The multiple fifth fixing holes 234 are spaced apart in the second direction Y. The fourth fastener 440 is inserted into the fourth fixing hole 212 and one of the fifth fixing holes 234. Specifically, the second sliding part 233 is embedded in the second sliding groove 211 to form a sliding pair, allowing the second support base 230 to perform linear displacement along the second direction Y. When it is necessary to adjust the spacing of the second cutter head 320, the fourth fastener 440 is unlocked, and the second support base 230 moves along the second sliding groove 211 to the target position. At this time, one of the multiple fifth fixing holes 234 forms a coaxial alignment with the fourth fixing hole 212, and the fourth fastener 440 is inserted into the aligned hole to achieve rigid fixation. Because the fifth fixing hole 234 is pre-machined at a fixed interval, the displacement of the second support 230 is precisely controlled to be an integer multiple of the hole spacing each time it is adjusted, eliminating the cumulative error that may occur during manual adjustment.

[0052] refer to Figure 7 , Figure 8 and Figure 9 This application provides a boring device, including a machine tool, a clamping fixture 500, and a boring tool. A first support 220 is provided with a boring head 223. The clamping fixture 500 is used to clamp a gearbox 100. The boring head 223 is connected to the spindle of the machine tool. The machine tool drives the first cutting head 310 and the second cutting head 320 of the boring tool to extend into the first bearing hole 110 and the second bearing hole 120 of the gearbox 100, respectively. The machine tool refers to a processing device that provides a power source, specifically a CNC machine tool or a traditional milling machine, which transmits rotational power through the spindle to drive the cutting tool for cutting.

[0053] Specifically, the machine tool spindle drives the boring head 223 to rotate the boring tool as a whole. The clamping fixture 500 fixes the gearbox 100 in a predetermined position, so that the axes of the first bearing hole 110 and the second bearing hole 120 coincide with the axis of rotation of the tool. Under the control of the machine tool feed mechanism, the first cutting head 310 and the second cutting head 320 synchronously enter the corresponding bearing hole along the axial direction for boring. Since the two cutting heads maintain synchronous movement during the machining process, and the gearbox 100 is positioned in one clamping by the clamping fixture 500, the machining datum of the two bearing holes is unified, avoiding axial offset caused by step-by-step machining.

[0054] The clamping fixture 500 includes a placement plate 510 and multiple clamping assemblies 520. The placement plate 510 has positioning holes 511, which are coaxially arranged with the first bearing hole 110 and the second bearing hole 120 of the gearbox 100. The multiple clamping assemblies 520 are spaced apart circumferentially around the positioning holes 511. Specifically, the placement plate 510 serves as a basic mounting platform, and by aligning the positioning holes 511 with the bearing holes of the gearbox 100 coaxially, it ensures that the tool axis coincides with the workpiece axis during machining. The multiple clamping assemblies 520 are distributed circumferentially along the positioning holes 511, and each clamping assembly 520 is rigidly connected to the placement plate 510 through a first connecting rod 521 to form a fixed fulcrum, thereby improving the stability of clamping the gearbox 100.

[0055] The clamping assembly 520 includes a first connecting rod 521, a second connecting rod 522, a screw 523, and a nut 524. One end of the first connecting rod 521 is fixedly connected to the placement plate 510, and the other end of the first connecting rod 521 is connected to one end of the second connecting rod 522. The other end of the second connecting rod 522 is used to abut against the gearbox 100. The second connecting rod 522 is provided with a through hole 525. One end of the screw 523 is fixed to the placement plate 510, and the other end of the screw 523 passes through the through hole 525 and is threadedly connected to the nut 524. Specifically, each clamping assembly 520 is rigidly connected to the placement plate 510 through the first connecting rod 521 to form a fixed fulcrum. The end of the second connecting rod 522 abuts against the outer wall of the gearbox 100. The screw 523 passes through the through hole 525 of the second connecting rod 522 and cooperates with the nut 524. When the nut 524 is rotated, an axial tensile force is generated, causing the second connecting rod 522 to apply a clamping force to the gearbox 100. Because the clamping points are evenly distributed around the circumference of the gearbox 100, the clamping force forms a balanced constraint in the circumferential direction, avoiding workpiece displacement caused by unilateral force application. At the same time, the clearance fit between the through hole 525 of the second connecting rod 522 and the screw 523 allows for adjustment of the clamping position to meet the clamping requirements of gearboxes 100 with different outer diameters.

[0056] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0057] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. A boring tool, characterized in that, include: The tool holder includes a support rod, a first support base, and a second support base. The support rod extends along a first direction, and the first support base and the second support base are respectively connected to both ends of the support rod in the first direction. A first cutting head and a second cutting head are respectively mounted on a first support base and a second support base via an adjustment structure. The adjustment structure is used to adjust the distance between the first cutting head and / or the second cutting head and the support rod in a second direction, wherein the first direction is perpendicular to the second direction.

2. The boring tool according to claim 1, characterized in that, The adjustment structure includes a slide, a first mounting base, and a first fastener. The slide is disposed on the first support base, and the first cutter head is disposed on the first mounting base. The slide block is provided with a first adjustment hole extending along the second direction, the first mounting base is provided with a first fixing hole, the first fastener is inserted into the first fixing hole and the first adjustment hole, and the first fastener is movable in the first adjustment hole.

3. The boring tool according to claim 2, characterized in that, The slide block is provided with a first limiting groove, and the first mounting base is provided with a first limiting protrusion. Both the first limiting groove and the first limiting protrusion extend along the second direction, and the first limiting protrusion is disposed in the first limiting groove.

4. The boring tool according to claim 2, characterized in that, The adjustment structure further includes a second fastener. The first support base is provided with a first sliding groove and a second adjustment hole extending along the second direction. The slide base is provided with a first sliding part and a second fixing hole. The first sliding part is slidably disposed in the first sliding groove. The second fastener is inserted into the second fixing hole and the second adjustment hole, and the second fastener is movable in the second adjustment hole.

5. The boring tool according to claim 1, characterized in that, The adjustment structure further includes a second mounting base and a third fastener. The second cutter head is disposed on the second mounting base, the second mounting base is provided with a third fixing hole, the second support base is provided with a third adjustment hole extending along the second direction, the third fastener is inserted into the third fixing hole and the third adjustment hole, and the third fastener is movable in the third adjustment hole.

6. The boring tool according to claim 5, characterized in that, The second support base is provided with a second limiting groove, and the second mounting base is provided with a second limiting protrusion. Both the second limiting groove and the second limiting protrusion extend along the second direction, and the second limiting protrusion is disposed in the second limiting groove.

7. The boring tool according to claim 1, characterized in that, The adjustment structure further includes a fourth fastener. The support rod is provided with a second sliding groove and a fourth fixing hole. The second support base is provided with a second sliding part and a plurality of fifth fixing holes. The second sliding part is slidably disposed in the second sliding groove. The plurality of fifth fixing holes are spaced apart in the second direction. The fourth fastener is inserted into the fourth fixing hole and one of the fifth fixing holes.

8. A boring device, characterized in that, The device includes a machine tool, a clamping fixture, and a boring tool according to any one of claims 1-7. The first support is provided with a boring head, the clamping fixture is used to clamp the gearbox, the boring head is connected to the spindle of the machine tool, and the machine tool drives the first cutting head and the second cutting head of the boring tool to extend into the first bearing hole and the second bearing hole of the gearbox, respectively.

9. The boring device according to claim 8, characterized in that, The clamping fixture includes a placement plate and multiple clamping components. The placement plate is provided with positioning holes, which are coaxially arranged with the first bearing hole and the second bearing hole of the gearbox. The multiple clamping components are spaced apart in the circumferential direction of the positioning holes.

10. The boring device according to claim 9, characterized in that, The clamping assembly includes a first connecting rod, a second connecting rod, a screw, and a nut. One end of the first connecting rod is fixedly connected to the placement plate, and the other end of the first connecting rod is connected to one end of the second connecting rod. The other end of the second connecting rod is used to abut against the gearbox. The second connecting rod has a through hole, one end of the screw is fixed to the placement plate, and the other end of the screw passes through the through hole and is threadedly connected to the nut.

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