Boring cutter structure

By designing adjustment and anti-splash components on the boring bar, the problem of the boring bar's inability to adjust its height is solved, enabling diversified machining needs and improved machining accuracy, while ensuring operational safety.

CN224143530UActive Publication Date: 2026-04-21ZHEJIANG DERUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing boring tools cannot be height adjusted, making it difficult to adapt to the machining needs of holes of different depths and limiting the machining range.

Method used

A boring bar structure including an adjustment component was designed. The height of the cutting tool is adjusted by a combination of a screw, a torsion block, a worm gear, a worm wheel, and a threaded cylinder. The cutting tool is fixed by bolts to ensure a stable position. At the same time, an anti-splash component is set to prevent debris from flying.

Benefits of technology

It improves the versatility and machining accuracy of boring tools, reduces machining errors, and ensures the stability of the machining process and the safety of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of boring cutter structures, and discloses a boring cutter structure which comprises a cutter handle and a cutting cutter, an adjusting assembly is arranged in the cutter handle and comprises a screw rod, a twisting block and a bolt, the screw rod is fixedly installed in the cutter handle, and through the arranged adjusting assembly, before a boring cutter is used, the twisting block and the bolt are fixed to the cutter handle. A worker twists the twisting block to drive the worm to rotate, then the worm gear drives the threaded barrel to rotate, vertical movement of the threaded barrel is achieved, and therefore the height of the cutting tool is adjusted, diversified machining requirements can be met, the universality of the boring tool is improved, machining errors caused by mismatching of tools are reduced, and the machining precision is improved. The position of the threaded cylinder is further fixed through the bolt, so that the position of the cutter is stabilized, the cutter can be prevented from displacing due to the influence of factors such as cutting force in the machining process, the stability of the machining process is guaranteed, and the quality of machined products is more reliable.
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Description

Technical Field

[0001] This utility model relates to the field of boring tool structure technology, and in particular to a boring tool structure. Background Technology

[0002] In the field of modern machining, boring is an extremely important precision machining method, widely used in many industries such as automobile manufacturing, aerospace, and shipbuilding. As a key tool in boring, the performance and structure of the boring tool directly affect the machining accuracy, surface quality, and production efficiency.

[0003] The applicant discovered a Chinese patent, "A Boring Tool Structure," with publication (announcement) number "CN219818072 U." This patent primarily utilizes a groove damping band. The groove damping band is located 0.22mm to the left of the right side of the cutting edge's front face, and its width is 0.22mm. The front faces of the groove damping band are all planar, preventing tool vibration during machining and eliminating tool marks on the product's surface. However, this patent does not allow for height adjustment of the cutting tool, thus limiting the boring tool's versatility. In practical use, this might lead to the boring tool being unable to adapt to hole machining requirements of different depths, thereby restricting the machining range. Therefore, we propose a boring tool structure. Utility Model Content

[0004] The purpose of this utility model is to provide a boring bar structure to solve the problem mentioned in the background art that the height of the cutting tool cannot be adjusted, thus improving the versatility of the boring bar. In actual use, the boring bar may be unable to adapt to the machining requirements of holes of different depths, thereby limiting the machining range.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a boring tool structure, including a tool holder and a cutting tool, wherein an adjustment component is provided inside the tool holder, the adjustment component includes a screw, a torsion block and a bolt, the screw is fixedly installed inside the tool holder, the torsion block is connected to a worm wheel and a threaded cylinder through a worm gear, and the cutting tool is fixedly installed at the lower end of the threaded cylinder.

[0006] As a preferred embodiment, the inner wall of the threaded cylinder is threadedly connected to the outer wall of the screw, the outer wall of the threaded cylinder is slidably connected to the inner wall of the tool holder, and the torsion block is fixedly installed at one end of the worm gear.

[0007] As a preferred embodiment, the other end of the worm is rotatably connected to the inner wall of the tool holder, the worm is meshed with a worm wheel, and the inner wall of the worm wheel is fixedly connected to the outer wall of the threaded cylinder.

[0008] As a preferred embodiment, a threaded groove is provided on the outer right side of the tool holder, and the outer wall of the bolt is threadedly connected to the inner wall of the threaded groove.

[0009] As a preferred embodiment, the outside of the knife handle is provided with an anti-splash component, the anti-splash component includes an arc-shaped disk, the inner wall of the arc-shaped disk is in contact with the outer wall of the knife handle, and a connecting block is fixedly connected to the top of the arc-shaped disk.

[0010] As a preferred embodiment, a slider is fixedly connected to the surface of the connecting block, a groove is provided on the outer wall of the front of the tool holder, the outer wall of the slider is slidably connected to the inner wall of the groove, and a screw is threadedly connected to the inner wall of the slider.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By using the adjustable components, before using the boring bar, the operator twists the torsion block to drive the worm gear to rotate, which in turn drives the threaded cylinder to rotate through the worm wheel, thus moving the threaded cylinder up and down to adjust the height of the cutting tool. This can meet diverse processing needs, improve the versatility of the boring bar, reduce processing errors caused by tool mismatch, and improve processing accuracy. After adjustment, the position of the threaded cylinder is further fixed by bolts, thereby stabilizing the position of the cutting tool. This can prevent the cutting tool from shifting due to cutting forces and other factors during processing, ensuring the stability of the processing process and making the quality of the processed products more reliable.

[0013] 2. With the anti-splash component in place, before using the boring tool, the operator loosens the screw and moves the slider directly below the slide groove. At this time, the arc-shaped disk enters the effective working position. When the cutting tool is working, the arc-shaped disk can prevent debris from splashing, which can reduce the risk of injury to personnel and ensure the personal safety of the operator. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0017] Figure 4 for Figure 3 Diagram showing the breakdown of the middle section;

[0018] Figure 5 This is a schematic diagram of the anti-splash component structure of this utility model.

[0019] In the diagram: 1. Tool holder; 2. Cutting tool; 3. Adjustment assembly; 301. Screw; 302. Torque block; 303. Worm gear; 304. Worm wheel; 305. Threaded cylinder; 306. Threaded groove; 307. Bolt; 4. Anti-splash assembly; 401. Arc-shaped disc; 402. Connecting block; 403. Slider; 404. Screw; 405. Slide groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see the appendix Figure 1 - Appendix Figure 4 A boring tool structure includes a tool holder 1 and a cutting tool 2. An adjustment component 3 is provided inside the tool holder 1. The adjustment component 3 includes a screw 301, a torsion block 302, and a bolt 307. The screw 301 is fixedly installed inside the tool holder 1. The torsion block 302 is connected to a worm wheel 304 and a threaded cylinder 305 through a worm gear 303. The cutting tool 2 is fixedly installed at the lower end of the threaded cylinder 305. The inner wall of the threaded cylinder 305 is threadedly connected to the outer wall of the screw 301. The outer wall of the threaded cylinder 305 is slidably connected to the inner wall of the tool holder 1. The torsion block 302 is fixedly installed at one end of the worm gear 303. The other end of the worm gear 303 is rotatably connected to the inner wall of the tool holder 1. The worm gear 303 is meshed with the worm wheel 304. The inner wall of the worm wheel 304 is fixedly connected to the outer wall of the threaded cylinder 305. A threaded groove 306 is provided on the right outer wall of the tool holder 1. The outer wall of the bolt 307 is threadedly connected to the inner wall of the threaded groove 306.

[0023] The tool holder 1 has a dedicated space slot inside for the threaded cylinder 305 to move up and down. At the same time, the tool holder 1 also has another space slot inside to provide space for the rotation of the worm 303 and the worm wheel 304.

[0024] Specifically, through the adjustable component 3, before using the boring tool, the operator twists the torsion block 302 to drive the worm gear 303 to rotate, which in turn drives the threaded cylinder 305 to rotate through the worm wheel 304, thus moving the threaded cylinder 305 up and down to adjust the height of the cutting tool 2. This can meet diverse processing needs, improve the versatility of the boring tool, reduce processing errors caused by tool mismatch, and improve processing accuracy. After adjustment, the position of the threaded cylinder 305 is further fixed by the bolt 307, thereby stabilizing the position of the cutting tool 2. This can prevent the cutting tool 2 from shifting due to cutting forces and other factors during processing, ensuring the stability of the processing process and making the quality of the processed products more reliable.

[0025] Example 2:

[0026] Please see the appendix Figure 1 Appendix Figure 2 and appendix Figure 5 Furthermore, based on Embodiment 1, the blade handle 1 is provided with an anti-splash assembly 4 on its exterior. The anti-splash assembly 4 includes an arc-shaped disk 401, the inner wall of which is in contact with the outer wall of the blade handle 1. A connecting block 402 is fixedly connected to the top of the arc-shaped disk 401, and a slider 403 is fixedly connected to the surface of the connecting block 402. A groove 405 is provided on the front outer wall of the blade handle 1, and the outer wall of the slider 403 is slidably connected to the inner wall of the groove 405. A screw 404 is threadedly connected to the inner wall of the slider 403.

[0027] When screw 404 is loosened, the arc-shaped disk 401 will slide down to the bottom of the slide groove 405 under the interaction of the slider 403 and the slide groove 405. The inner wall of the slide groove 405 is provided with a threaded hole that matches the screw 404. When the screw 404 is screwed into the threaded hole for threaded connection, the arc-shaped disk 401 is exactly below the torsion block 302. There is a hollow design on the outer wall of the arc-shaped disk 401. This structure is mainly to facilitate the torsion operation of the bolt 307 and provide it with the necessary operating space.

[0028] Specifically, with the anti-splash component 4 in place, before using the boring tool, the operator loosens the screw 404 and slides the slider 403 directly below the slide groove 405. At this time, the arc-shaped disk 401 enters the effective working position. When the cutting tool 2 is working, the arc-shaped disk 401 can prevent debris from splashing, thus reducing the risk of injury to personnel and ensuring the personal safety of the operator.

[0029] Working principle of this utility model: This utility model is a boring tool structure. First, before using the boring tool, the operator twists the torsion block 302, which drives the worm 303 connected to it to rotate. Since the worm 303 is meshed with the worm wheel 304, the rotation of the worm 303 will cause the worm wheel 304 to rotate. The inner wall of the worm wheel 304 is fixedly connected to the outer wall of the threaded cylinder 305. Therefore, when the worm wheel 304 rotates, it will drive the threaded cylinder 305 to rotate synchronously. The inner wall of the threaded cylinder 305 is fixed to the outer wall of the boring tool. The screw 301 inside the handle 1 is threaded, and the outer wall of the threaded cylinder 305 is slidably connected to the inner wall of the handle 1. This allows the threaded cylinder 305 to move up and down along the screw 301 while rotating, thereby adjusting the height of the cutting tool 2 fixedly mounted at the lower end of the threaded cylinder 305. After adjusting to the appropriate height, the operator screws the bolt 307 into the threaded groove 306 on the right outer wall of the handle 1 to further fix the position of the threaded cylinder 305 and prevent the cutting tool 2 from being damaged during machining. During the process, displacement occurs due to factors such as cutting force, ensuring the stability and accuracy of the machining process. Then, before using the boring tool, the operator first loosens the screw 404. At this time, the slider 403 is no longer fixed. Since the slider 403 is connected to the connecting block 402 on the top of the arc-shaped disk 401, and the outer wall of the slider 403 is slidably connected to the inner wall of the groove 405 opened on the front outer wall of the tool holder 1, under the action of gravity, the arc-shaped disk 401 will slide down to the bottom of the groove 405 under the interaction of the slider 403 and the groove 405. Then, the operator screws the screw 404 into the matching threaded hole on the inner wall of the groove 405, so that the arc-shaped disk 401 is fixed directly below the toggle block 302. The outer wall of the arc-shaped disk 401 has a hollow design to facilitate the operation of the bolt 307. When the cutting tool 2 is working, the arc-shaped disk 401 can effectively block the flying of chips generated during the cutting process, ensuring the personal safety of the operator, and also preventing the chips from causing adverse effects on the machining environment and equipment.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A boring tool structure comprising a tool holder (1) and a cutting insert (2), characterized in that: The tool holder (1) is provided with an adjustment component (3), which includes a screw (301), a torsion block (302) and a bolt (307). The screw (301) is fixedly installed inside the tool holder (1). The torsion block (302) is connected to a worm wheel (304) and a threaded cylinder (305) through a worm gear (303). The cutting tool (2) is fixedly installed at the lower end of the threaded cylinder (305).

2. The boring tool structure according to claim 1, characterized in that: The inner wall of the threaded cylinder (305) is threaded to the outer wall of the screw (301), the outer wall of the threaded cylinder (305) is slidably connected to the inner wall of the tool holder (1), and the torsion block (302) is fixedly installed at one end of the worm (303).

3. A boring tool according to claim 2, wherein: The other end of the worm (303) is rotatably connected to the inner wall of the handle (1). The worm (303) is meshed with the worm wheel (304). The inner wall of the worm wheel (304) is fixedly connected to the outer wall of the threaded cylinder (305).

4. The boring tool structure according to claim 3, wherein: A threaded groove (306) is provided on the outer right side of the handle (1), and the outer wall of the bolt (307) is threaded to the inner wall of the threaded groove (306).

5. A boring tool according to claim 4, wherein: The outside of the handle (1) is provided with a splash-proof component (4), which includes an arc-shaped disk (401). The inner wall of the arc-shaped disk (401) is in contact with the outer wall of the handle (1), and a connecting block (402) is fixedly connected to the top of the arc-shaped disk (401).

6. A boring tool according to claim 5, wherein: The surface of the connecting block (402) is fixedly connected to a slider (403), and a groove (405) is provided on the outer wall of the front side of the knife handle (1). The outer wall of the slider (403) is slidably connected to the inner wall of the groove (405), and a screw (404) is threadedly connected to the inner wall of the slider (403).

Citation Information

Patent Citations

  • Boring cutter structure

    CN219818072U