Composite boring tool

By designing a gear and rack structure, combined with adjustment and guide components, the problem of difficult installation and removal of composite boring tools is solved, enabling convenient installation and removal of tools and improving operational efficiency.

CN224238296UActive Publication Date: 2026-05-15SHANGHAI XINSHANTIAN PRECISION CUTTING TOOL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI XINSHANTIAN PRECISION CUTTING TOOL CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

When installing and removing existing composite boring tools, the spring-assisted reset force makes it difficult for the locking block to enter the connecting cylinder and engage with the slot, resulting in high operational difficulty and reduced work efficiency.

Method used

The device employs a gear and rack structure, with rack plate one and rack plate two connected by gear meshing. Combined with adjustment and guide components, it enables convenient installation and removal of the cutting tool. A knob is used to move the rack plate by driving the threaded rod and cross plate, ensuring that the insert block is inserted into the slot.

Benefits of technology

It simplifies the installation and disassembly process of the cutting tools, reduces the difficulty of operation, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a composite boring cutter, which relates to the technical field of composite boring cutters, and comprises a circular tube, a cutter body is slidably arranged in the circular tube, a cutter holder is fixedly arranged on one side of the circular tube, a groove is arranged at the top of the cutter body, a rotating rod is rotatably arranged in the groove, a gear is fixedly arranged in the middle of the rotating rod, and the cutter holder is fixedly arranged on the other side of the circular tube. A first rack plate and a second rack plate are connected to the two sides of the gear in a meshed mode respectively, an insertion block is fixedly arranged at the top end of the first rack plate, an insertion groove matched with the insertion block in an inserted mode is formed in the inner wall of the round pipe, and a moving rod is arranged above the second rack plate; the tool has the advantages that mutual insertion of the insertion blocks and the insertion grooves is guaranteed, the tool body can be conveniently and rapidly installed, the installation progress is improved, operation is convenient and fast, time is saved, and the operation difficulty is greatly reduced as well.
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Description

Technical Field

[0001] This utility model relates to a boring tool, and more particularly to a composite boring tool, belonging to the field of composite boring tool technology. Background Technology

[0002] CNC boring machines are machine tools that use boring tools to process pre-drilled holes in workpieces. Boring tools are a type of boring cutting tool, and are most commonly used for internal hole machining, reaming, and contouring. They can be used on boring machines, lathes, or milling machines. When using them, appropriate modules can be selected according to the requirements of the workpiece to assemble various boring tools, thereby simplifying the design and manufacturing of the tools.

[0003] The application "202222271691.1" discloses a "composite boring tool for a CNC boring machine," which "includes a tool holder, a connecting cylinder fixedly connected to the front of the tool holder, and a cutting tool movably connected to the inner cavity of the connecting cylinder." In this utility model, the connecting cylinder is used to engage with the cutting tool, and a slot is used to hold a spring and a locking block. Through the cooperation of the spring, locking block, and slot, the spring's return force drives the locking block into the inner cavity of the slot, thereby engaging and fixing the connecting cylinder and the cutting tool, facilitating tool installation. Through the cooperation of the fixed cylinder, threaded rod, threaded sleeve, connecting rod, and push block, the rotation of the threaded rod drives the threaded sleeve, connecting rod, and push block to move towards one side of the cutting tool, allowing the push block to push the locking block into the inner cavity of the slot, thereby releasing the tool and facilitating subsequent tool disassembly. This saves time and effort, solving the problem that the installation or disassembly of composite boring tools is time-consuming and easily leads to reduced processing efficiency.

[0004] However, the above method has the following drawbacks: relying on the restoring force provided by the spring to drive the locking block and embed it into the inner cavity of the slot to achieve the locking and fixing between the connecting cylinder and the tool. However, in actual application scenarios, when the spring is in action, it will exert an upward supporting force on the locking block, making it difficult for it to enter the interior of the connecting cylinder and engage with the slot; the operator needs to spend more effort and skill to overcome this obstacle, significantly increasing the difficulty of operation, slowing down the tool installation process, and reducing overall work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a composite boring tool to solve the problem mentioned in the background art. However, in actual applications, when the spring is in action, it will push the locking block upward, making it difficult for it to enter the connecting cylinder and engage with the slot. Operators need to spend time and effort to overcome the resistance, which increases the difficulty of operation, slows down the tool installation progress, and reduces the overall efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite boring tool, comprising a circular tube, a tool body slidably disposed inside the circular tube, a tool holder fixedly disposed on one side of the circular tube, a groove formed at the top of the tool body, a rotating rod rotatably disposed inside the groove, a gear fixedly disposed in the middle of the rotating rod, a rack plate one and a rack plate two respectively meshing and connected on both sides of the gear, an insert block fixedly disposed at the top of the rack plate one, a slot for inserting and engaging with the insert block formed on the inner wall of the circular tube, a moving rod disposed above the rack plate two, and an adjustment component for adjusting the moving rod disposed in the middle of the top of the circular tube.

[0007] As a preferred technical solution of this utility model, both sides of the tool body are fixedly provided with limiting slide plates, and the inner wall of the round tube is provided with a limiting slide groove that slides and cooperates with the limiting slide plates.

[0008] As a preferred embodiment of this utility model, a mounting base is fixedly provided on one side of the tool holder, and the surface of the mounting base is provided with a plurality of evenly spaced mounting holes.

[0009] As a preferred technical solution of this utility model, guide components are provided on both sides of the rack plate. The guide components include support blocks. Two support blocks are fixedly installed on the bottom of both sides of the rack plate. A guide rod is slidably provided in the middle of the support block. The bottom end of the guide rod is fixedly connected to the inner wall of the groove. A limit cap is fixedly provided at the top end of the guide rod.

[0010] As a preferred technical solution of this utility model, the bottom of both sides of the rack plate is fixedly provided with support blocks 2, the middle of the support blocks 2 is slidably provided with guide rod 2, the bottom end of the guide rod 2 is fixedly connected to the inner wall of the groove, and the top end of the guide rod 2 is fixedly provided with a limiting cap 2.

[0011] As a preferred technical solution of this utility model, the adjustment component includes a bracket, which is fixedly installed at the middle of the top of the round tube. A threaded rod is threadedly connected to the top of the bracket, and a horizontal plate is rotatably provided at the bottom end of the threaded rod. The middle of the bottom end of the horizontal plate is fixedly connected to the top of the moving rod, and a knob is fixedly provided at the top of the threaded rod.

[0012] As a preferred embodiment of this utility model, guide blocks are fixedly provided on both sides of the horizontal plate, and guide grooves that slide and cooperate with the guide blocks are provided on both sides of the inner wall of the bracket.

[0013] As a preferred embodiment of this utility model, the top of the circular tube is provided with a sliding hole that slides with the moving rod, and the bottom end of the moving rod is in contact with the top end of the rack plate.

[0014] Compared with related technologies, the composite boring tool provided by this utility model has the following beneficial effects:

[0015] The grooves, combined with the internal rotating gears, allow rack plates one and two to mesh and be housed within the grooves on either side of the gears. This facilitates the direct insertion of the tool body into the cylindrical tube, making the operation convenient, time-saving, and significantly reducing the difficulty of operation. By using the adjustable components, pressure is applied to the top of rack plate two via a moving rod. Under the action of the gears, rack plate one and the insert block move upwards, ensuring that the insert block and the slot are interlocked. This facilitates the rapid installation of the tool body and improves the installation progress. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the circular tube of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the circular tube of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the tool body of this utility model;

[0020] Figure 5 This is an exploded structural diagram of the rotating rod of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the bracket of this utility model.

[0022] In the diagram: 1. Round tube; 2. Tool body; 3. Tool holder; 4. Groove; 5. Rotating rod; 6. Gear; 7. Rack plate one; 8. Rack plate two; 9. Insert block; 10. Moving rod; 11. Adjustment assembly; 1101. Bracket; 1102. Threaded rod; 1103. Horizontal plate; 1104. Guide block; 1105. Guide groove; 1106. Knob; 12. Guide assembly; 1201. Support block one; 1202. Guide rod one; 1203. Limit cap one; 1204. Support block two; 1205. Guide rod two; 1206. Limit cap two; 13. Limiting slide plate; 14. Limiting slide groove; 15. Mounting base; 16. Mounting hole. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6 This utility model provides a composite boring tool, including a cylindrical tube 1. A tool body 2 is slidably mounted inside the cylindrical tube 1. A tool holder 3 is fixedly mounted on one side of the cylindrical tube 1. A groove 4 is formed on the top of the tool body 2. A rotating rod 5 is rotatably mounted inside the groove 4. A gear 6 is fixedly mounted in the middle of the rotating rod 5. A rack plate 7 and a rack plate 8 are respectively meshed on both sides of the gear 6. An insert block 9 is fixedly mounted on the top of the rack plate 7. A slot for inserting and engaging with the insert block 9 is formed on the inner wall of the cylindrical tube 1. A moving rod 10 is provided above the rack plate 8. Through the groove 4, combined with the rotating gear 6 inside, the two sides of the gear 6 are respectively meshed with the insert block 9. The rack plate 7 and rack plate 8 are housed inside the groove 4, making it convenient to directly insert the tool body 2 into the round tube 1. This operation is convenient and time-saving, and the difficulty of operation is greatly reduced. Using the adjustment component 11, pressure is applied to the top of the rack plate 8 by the moving rod 10. Under the action of the gear 6, the rack plate 7 and the insert 9 move upward, ensuring that the insert 9 is inserted into the slot, which facilitates the quick installation of the tool body 2 and improves the installation progress. The middle of the top of the round tube 1 is provided with an adjustment component 11 for adjusting the moving rod 10. The adjustment component 11 can drive the moving rod 10 to move and adjust in the vertical direction.

[0025] The adjustment assembly 11 includes a bracket 1101, which is fixedly installed at the middle of the top of the round tube 1. A threaded rod 1102 is threadedly connected to the top of the bracket 1101. A horizontal plate 1103 is rotatably provided at the bottom of the threaded rod 1102. The middle of the bottom of the horizontal plate 1103 is fixedly connected to the top of the moving rod 10. A knob 1106 is fixedly provided at the top of the threaded rod 1102. Guide blocks 1104 are fixedly provided on both sides of the horizontal plate 1103. Guide grooves 1105 that slide with the guide blocks 1104 are provided on both sides of the inner wall of the bracket 1101. By using the adjustment assembly 11, the knob 1106 drives the threaded rod 1102 to rotate. Combined with the guide blocks 1104 and the guide grooves 1105, the horizontal plate 1103 moves in the vertical direction, thereby driving the moving rod 10 to move downward for adjustment.

[0026] Both sides of rack plate 7 are provided with guide components 12. The guide components 12 include support blocks 1201. Two support blocks 1201 are fixedly installed on the bottom of both sides of rack plate 7. A guide rod 1202 is slidably provided in the middle of support block 1201. The bottom end of the guide rod 1202 is fixedly connected to the inner wall of the groove 4. A limit cap 1203 is fixedly provided at the top end of the guide rod 1202. Both sides of rack plate 8 are provided with support blocks 2204. A guide rod 2205 is slidably provided in the middle of support block 2204. The bottom end of the guide rod 2205 is fixedly connected to the inner wall of the groove 4. A limit cap 2206 is fixedly provided at the top end of the guide rod 2205. The guide components 12 can play a limiting and guiding role for rack plate 7 and rack plate 8 during movement.

[0027] The top of the round tube 1 is provided with a sliding hole that slides with the moving rod 10. The bottom end of the moving rod 10 is in contact with the top end of the rack plate 8. The sliding hole allows the moving rod 10 to move without any restriction. By moving the moving rod 10 downward, the rack plate 8 can be moved downward for adjustment.

[0028] Both sides of the tool body 2 are fixedly provided with limiting slide plates 13, and the inner wall of the round tube 1 is provided with a limiting slide groove 14 that slides with the limiting slide plate 13; the limiting slide plate 13 and the limiting slide groove 14 can play a limiting and guiding role in the installation of the tool body 2.

[0029] A mounting base 15 is fixedly provided on one side of the tool holder 3. The surface of the mounting base 15 is provided with several evenly spaced mounting holes 16. Through the mounting base 15 and mounting holes 16 provided at the tool holder 3, bolts and other connecting parts can be adapted, so that the tool holder 3 can be flexibly and stably fixed to the surface of various equipment.

[0030] In use, firstly, under the action of gravity, the insert block 9, together with the rack plate 7, moves downward inside the groove 4, causing the rack plate 8 to move upward. At this time, the rack plate 8 is located inside the groove 4. Then, using the limiting slide plates 13 on both sides of the tool body 2, combined with the limiting slide grooves 14, it is inserted into the inside of the round tube 1 until one end of the tool body 2 contacts and is limited at the tool holder 3. Then, the knob 1106 drives the threaded rod 1102 to rotate clockwise, combined with the guide block 1104 and the guide groove 1105, so that the horizontal plate 1103 moves in the vertical direction, thereby driving the moving plate 1103 to move. The moving rod 10 is adjusted downwards. By moving the moving rod 10 downwards, it engages with the meshing gear 6, which in turn drives the rack plate 7 and the insert block 9 upwards, ensuring that the insert block 9 is inserted into the slot. This facilitates the quick installation of the tool body 2 and improves the installation progress. When it is necessary to disassemble the tool body 2, the above steps are repeated by rotating the knob 1106 counterclockwise. The moving rod 10 is separated from the rack plate 8, so that the moving rod 10 is placed outside the groove 4. Under the action of gravity, the insert block 9 together with the rack plate 7 will move downwards inside the groove 4, allowing the tool body 2 to be disassembled.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite boring tool, comprising a round tube (1), characterized in that, The inner side of the circular tube (1) is provided with a cutting tool body (2), and a cutting tool holder (3) is fixedly provided on one side of the circular tube (1). The top of the cutting tool body (2) is provided with a groove (4), and a rotating rod (5) is rotatably provided inside the groove (4). A gear (6) is fixedly provided in the middle of the rotating rod (5). A rack plate one (7) and a rack plate two (8) are respectively meshed on both sides of the gear (6). A plug block (9) is fixedly provided at the top of the rack plate one (7). A slot for inserting and cooperating with the plug block (9) is provided on the inner wall of the circular tube (1). A moving rod (10) is provided above the rack plate two (8). An adjustment component (11) for adjusting the moving rod (10) is provided in the middle of the top of the circular tube (1).

2. The composite boring tool according to claim 1, characterized in that: Both sides of the cutter body (2) are fixedly provided with limiting slide plates (13), and the inner wall of the round tube (1) is provided with a limiting slide groove (14) that slides with the limiting slide plate (13).

3. The composite boring tool according to claim 1, characterized in that: A mounting base (15) is fixedly provided on one side of the tool holder (3), and the surface of the mounting base (15) is provided with a plurality of evenly spaced mounting holes (16).

4. The composite boring tool according to claim 1, characterized in that: The rack plate (7) is provided with guide components (12) on both sides. The guide components (12) include support blocks (1201). The two support blocks (1201) are fixedly installed at the bottom of the rack plate (7) on both sides. The support blocks (1201) are slidably provided with guide rods (1202) in the middle. The bottom end of the guide rods (1202) is fixedly connected to the inner wall of the groove (4). The top end of the guide rods (1202) is fixedly provided with limit caps (1203).

5. The composite boring tool according to claim 1, characterized in that: The bottom of both sides of the rack plate 2 (8) is fixedly provided with support block 2 (1204), and the middle of the support block 2 (1204) is slidably provided with guide rod 2 (1205). The bottom end of the guide rod 2 (1205) is fixedly connected to the inner wall of the groove (4), and the top end of the guide rod 2 (1205) is fixedly provided with limit cap 2 (1206).

6. The composite boring tool according to claim 1, characterized in that: The adjustment assembly (11) includes a bracket (1101), which is fixedly installed at the middle of the top of the round tube (1). The top of the bracket (1101) is threadedly connected to a threaded rod (1102). The bottom end of the threaded rod (1102) is rotatably provided with a horizontal plate (1103). The middle of the bottom end of the horizontal plate (1103) is fixedly connected to the top of the moving rod (10). The top of the threaded rod (1102) is fixedly provided with a knob (1106).

7. The composite boring tool according to claim 6, characterized in that: Guide blocks (1104) are fixedly provided on both sides of the horizontal plate (1103), and guide grooves (1105) that slide with the guide blocks (1104) are provided on both sides of the inner wall of the bracket (1101).

8. The composite boring tool according to claim 1, characterized in that: The top of the circular tube (1) is provided with a sliding hole that slides with the moving rod (10), and the bottom end of the moving rod (10) is in contact with the top end of the rack plate (8).