A practical composite boring tool

Abstract

This utility model discloses a practical composite boring tool, belonging to the field of boring tool technology. It includes a connecting part, one end of which is fitted with a tool holder. A positioning and mounting component is provided on the surface of the connecting part corresponding to the tool holder. A tool head is provided on the other side of the connecting part. Several mounting holes are opened on one side of the tool head, and a first roughing boring tool is fixed inside each hole. A second roughing boring tool is provided on one side of the first roughing boring tool, and a chamfering tool is provided on one side of the second roughing boring tool. This utility model integrates a first roughing boring tool, a second roughing boring tool, and a chamfering tool on the tool head, resulting in strong equipment versatility. With multiple cutting tools, it can simultaneously complete roughing and chamfering of products, greatly improving processing efficiency. One tool can replace the three tools required in the original process, significantly reducing tool costs. The positioning and mounting component ensures the accuracy and stability of the tool holder installation, improving assembly and disassembly efficiency and saving manpower.

Description

Technical Field

[0001] This utility model belongs to the field of boring tool technology, specifically relating to a practical composite boring tool. Background Technology

[0002] A boring bar is a type of tool used for machining holes. It usually has a round shank, but square shanks are sometimes used for larger workpieces. It is commonly found on vertical lathes and is most often used for machining internal holes, reaming, and contouring. However, it is not only used for machining internal holes; it can also machine the outer diameter of end faces, although this is not the conventional usage.

[0003] When machining stepped holes in products, existing boring tools have a large machining allowance, requiring two roughing tools and one chamfering tool for machining. Chamfering requires interpolation, which requires many tools, occupies tool magazine space, has low machining efficiency, long chamfering interpolation time, poor equipment applicability, and cannot stably install tool holders, affecting the stability of equipment operation. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a practical composite boring tool that is stable to install and easy to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a practical composite boring tool, including a connecting part, a tool holder is installed at one end of the connecting part, a positioning and mounting component is provided on the surface of the connecting part corresponding to the tool holder, a tool head is provided on the other side of the connecting part, a plurality of mounting holes are opened on one side of the tool head, a first rough boring tool is fixed inside the mounting holes, a second rough boring tool is provided on one side of the first rough boring tool, and a chamfering tool is provided on one side of the second rough boring tool.

[0006] Preferably, the positioning and installation assembly includes a limiting device, a guide frame, a bidirectional lead screw, a sliding plate, a positioning post, and a meshing frame. The guide frame is fixed to one side surface of the connecting part, the bidirectional lead screw is provided inside the guide frame, a limiting device is provided at one end of the bidirectional lead screw, the sliding plate is symmetrically connected to the surface of the bidirectional lead screw, the meshing frame is provided on the surface of the sliding plate, and a positioning post is fixed in the middle of the meshing frame.

[0007] Preferably, the guide frame is configured as a U-shaped frame, and a bearing is provided inside the guide frame corresponding to the bidirectional lead screw.

[0008] Preferably, the sliding plate, positioning post, and engagement frame are integrally formed.

[0009] Preferably, the limiting device includes a handle, a slider, a limiting spring, a guide rod, a fixed seat, a positioning toothed plate, and a positioning gear. A handle is fixed to one end of the bidirectional lead screw, a positioning gear is fixed to the surface of the handle, a fixed seat is fixed to one end of the guide frame, guide rods are symmetrically arranged inside the fixed seat, a limiting spring is sleeved on the surface of the guide rod, a slider is provided at the bottom end of the limiting spring, and a positioning toothed plate is provided in the middle of the bottom end of the slider.

[0010] Preferably, the bottom end of the fixed base is provided with a guide groove corresponding to the positioning tooth plate, and the positioning tooth plate meshes with the teeth on the surface of the positioning gear.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model integrates a first rough boring tool, a second rough boring tool, and a chamfering tool at the tool head, making the equipment highly versatile. With multiple cutting tools, it can simultaneously complete the roughing and chamfering of products, greatly improving processing efficiency. One tool can replace the three tools required by the original process, and the tool cost is also greatly reduced.

[0013] 2. This utility model ensures the accuracy and stability of the tool holder installation by setting up a positioning and installation component, improves the efficiency of disassembly and assembly, saves manpower, and after the tool holder is installed, the positioning tooth plate engages with the upper end of the positioning gear for limiting, preventing the handle from loosening, ensuring the stability of the positioning column, and improving the fixing strength of the tool holder. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the positioning and installation component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the limiting device structure of this utility model.

[0017] In the diagram: 1. Tool head; 2. First rough boring tool; 3. Mounting hole; 4. Second rough boring tool; 5. Chamfering tool; 6. Connecting part; 7. Positioning and mounting assembly; 71. Limiting device; 711. Handle; 712. Slider;

[0018] 713. Limiting spring; 714. Guide rod; 715. Fixed seat; 716. Positioning toothed plate; 717. Positioning gear; 72. Guide frame; 73. Two-way lead screw; 74. Sliding plate; 75. Positioning pin; 76. Engaging frame; 8. Tool holder. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please see Figure 1-3 The present invention provides the following technical solution: a practical composite boring tool, including a connecting part 6, a tool holder 8 installed at one end of the connecting part 6, a positioning and mounting component 7 provided on the surface of the connecting part 6 corresponding to the tool holder 8, a tool head 1 provided on the other side of the connecting part 6, a plurality of mounting holes 3 provided on one side of the tool head 1, a first rough boring tool 2 fixed inside the mounting holes 3, a second rough boring tool 4 provided on one side of the first rough boring tool 2, and a chamfering tool 5 provided on one side of the second rough boring tool 4.

[0022] Specifically, the positioning and installation assembly 7 includes a limiting device 71, a guide frame 72, a bidirectional lead screw 73, a sliding plate 74, a positioning post 75, and a meshing frame 76. The guide frame 72 is fixed to one side surface of the connecting part 6. The bidirectional lead screw 73 is installed inside the guide frame 72. The limiting device 71 is installed at one end of the bidirectional lead screw 73. The sliding plate 74 is symmetrically connected to the surface of the bidirectional lead screw 73. The meshing frame 76 is installed on the surface of the sliding plate 74. The positioning post 75 is fixed in the middle of the meshing frame 76.

[0023] By adopting the above technical solution, rotating the bidirectional lead screw 73 causes the sliding plate 74 on the surface of the bidirectional lead screw 73 to slide along the inside of the guide frame 72. At this time, the tool holder 8 is inserted into the insertion hole inside the connecting part 6. Simultaneously, the moving sliding plate 74 drives the engagement frame 76 to clamp the tool holder 8, and the positioning pin 75 is inserted into the inside of the tool holder 8 to limit and fix it, ensuring the accuracy and stability of the tool holder 8 installation, improving the disassembly and assembly efficiency, and saving human resources.

[0024] Specifically, the guide frame 72 is configured as a U-shaped frame, and the inside of the guide frame 72 is equipped with a bearing corresponding to the bidirectional lead screw 73.

[0025] By adopting the above technical solution, the bidirectional lead screw 73 can be rotated stably, and the sliding plate 74 can be moved along the guide frame 72.

[0026] Specifically, the sliding plate 74, the positioning post 75, and the engagement frame 76 are integrally formed structures.

[0027] By adopting the above technical solutions, the strength of the sliding plate 74, the positioning post 75 and the engagement frame 76 are improved, and the stability of the limit is guaranteed.

[0028] In this embodiment, when in use: rotating the bidirectional lead screw 73 causes the sliding plate 74 on the surface of the bidirectional lead screw 73 to slide along the inside of the guide frame 72. At this time, the tool handle 8 is inserted into the insertion hole inside the connecting part 6. Simultaneously, the moving sliding plate 74 drives the engagement frame 76 to clamp the tool handle 8, and the positioning pin 75 is inserted into the inside of the tool handle 8 to limit and fix it, ensuring the accuracy and stability of the tool handle 8 installation, improving the efficiency of disassembly and assembly, and saving manpower.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that, specifically, the limiting device 71 includes a handle 711, a slider 712, a limiting spring 713, a guide rod 714, a fixed seat 715, a positioning toothed plate 716, and a positioning gear 717. One end of the bidirectional lead screw 73 is fixed with the handle 711, and the surface of the handle 711 is fixed with the positioning gear 717. One end of the guide frame 72 is fixed with the fixed seat 715, and the fixed seat 715 is symmetrically arranged with guide rods 714 inside. The surface of the guide rod 714 is fitted with a limiting spring 713, the bottom end of the limiting spring 713 is provided with a slider 712, and the bottom end of the slider 712 is provided with a positioning toothed plate 716.

[0031] By adopting the above technical solution, when it is necessary to process the stepped groove of the product, the tool holder 8 can be installed first so that the tool head 1 can be used. Pull the slider 712 upward so that it moves along the guide rod 714. At this time, the limit spring 713 is compressed and the positioning tooth plate 716 is separated from the positioning gear 717. The positioning tooth plate 716 no longer limits and locks the positioning gear 717. Then, turn the handle 711 to drive the bidirectional lead screw 73 to rotate.

[0032] After the tool holder 8 is installed, the slider 712 is released, which causes the limit spring 713 to reset and push the positioning tooth plate 716 to move down. This causes the teeth of the positioning tooth plate 716 to engage with the upper end of the positioning gear 717 for limiting, preventing the handle 711 from loosening, ensuring the stability of the positioning post 75, and improving the fixing strength of the tool holder 8.

[0033] Specifically, the bottom end of the fixed base 715 is provided with a guide groove corresponding to the positioning tooth plate 716, and the positioning tooth plate 716 meshes with the teeth on the surface of the positioning gear 717.

[0034] By adopting the above technical solution, the accuracy and stability of the positioning tooth plate 716 in limiting the positioning gear 717 are guaranteed.

[0035] In this embodiment, when it is necessary to process the stepped groove of the product, the tool holder 8 can be installed first so that the tool head 1 can be used. Pull the slider 712 upward so that it moves along the guide rod 714. At this time, the limiting spring 713 is compressed and the positioning tooth plate 716 is separated from the positioning gear 717. The positioning tooth plate 716 no longer limits and locks the positioning gear 717. Then, turn the handle 711 to drive the bidirectional lead screw 73 to rotate.

[0036] After the tool holder 8 is installed, the slider 712 is released, which causes the limit spring 713 to reset and push the positioning tooth plate 716 to move down. This causes the teeth of the positioning tooth plate 716 to engage with the upper end of the positioning gear 717 for limiting, preventing the handle 711 from loosening, ensuring the stability of the positioning post 75, and improving the fixing strength of the tool holder 8.

[0037] The working principle and usage process of this utility model: When using this utility model, when it is necessary to process the stepped groove of the product, the tool holder 8 can be installed first so that the tool head 1 can be used. Pull the slider 712 upward so that it moves along the guide rod 714. At this time, the limiting spring 713 is compressed and the positioning tooth plate 716 is separated from the positioning gear 717. The positioning tooth plate 716 no longer limits and locks the positioning gear 717.

[0038] Then, rotating the handle 711 drives the bidirectional lead screw 73 to rotate, causing the sliding plate 74 on the surface of the bidirectional lead screw 73 to slide along the inside of the guide frame 72. At this time, the tool holder 8 is inserted into the insertion hole inside the connecting part 6. Simultaneously, the moving sliding plate 74 drives the engagement frame 76 to clamp the tool holder 8, and the positioning pin 75 is inserted into the inside of the tool holder 8 to limit and fix it, ensuring the accuracy and stability of the tool holder 8 installation, improving the disassembly and assembly efficiency, and saving manpower.

[0039] After the tool holder 8 is installed, the slider 712 is released, which causes the limit spring 713 to reset and push the positioning tooth plate 716 to move down. This causes the teeth of the positioning tooth plate 716 to engage with the upper end of the positioning gear 717 for limiting, preventing the handle 711 from loosening, ensuring the stability of the positioning post 75, and improving the fixing strength of the tool holder 8.

[0040] Then drive the tool holder 8 to rotate the tool head 1, so that the first rough boring tool 2, the second rough boring tool 4 and the chamfering tool 5 work together to rough machine and chamfer the workpiece.

[0041] 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 practical composite boring tool comprising a connecting portion (6), characterized in that: One end of the connecting part (6) is equipped with a tool holder (8), and a positioning mounting component (7) is provided on the surface of the connecting part (6) corresponding to the tool holder (8). A tool head (1) is provided on the other side of the connecting part (6). A plurality of mounting holes (3) are provided on one side of the tool head (1). A first rough boring tool (2) is fixed inside the mounting holes (3). A second rough boring tool (4) is provided on one side of the first rough boring tool (2), and a chamfering tool (5) is provided on one side of the second rough boring tool (4).

2. A practical compound boring tool according to claim 1, characterized in that: The positioning and installation assembly (7) includes a limiting device (71), a guide frame (72), a two-way screw (73), a sliding plate (74), a positioning post (75), and a biting frame (76). The guide frame (72) is fixed on one side surface of the connecting part (6). The two-way screw (73) is provided inside the guide frame (72). The limiting device (71) is provided at one end of the two-way screw (73). The sliding plate (74) is symmetrically connected to the surface of the two-way screw (73). The biting frame (76) is provided on the surface of the sliding plate (74). The positioning post (75) is fixed in the middle of the biting frame (76).

3. A practical compound boring tool according to claim 2, characterized in that: The guide frame (72) is configured as a U-shaped frame, and the inside of the guide frame (72) is provided with a bearing corresponding to the bidirectional lead screw (73).

4. A practical composite boring tool according to claim 2, characterized in that: The sliding plate (74), positioning post (75), and engagement frame (76) are integrally formed structures.

5. The utility composite boring tool according to claim 2, wherein: The limiting device (71) includes a handle (711), a slider (712), a limiting spring (713), a guide rod (714), a fixed seat (715), a positioning toothed plate (716), and a positioning gear (717). The handle (711) is fixed at one end of the bidirectional lead screw (73), and the positioning gear (717) is fixed on the surface of the handle (711). The fixed seat (715) is fixed at one end of the guide frame (72). The guide rod (714) is symmetrically arranged inside the fixed seat (715). The limiting spring (713) is sleeved on the surface of the guide rod (714). The slider (712) is provided at the bottom end of the limiting spring (713), and the positioning toothed plate (716) is provided in the middle of the bottom end of the slider (712).

6. A practical compound boring tool according to claim 5, characterized in that: The bottom end of the fixed base (715) is provided with a guide groove corresponding to the positioning tooth plate (716), and the positioning tooth plate (716) meshes with the teeth on the surface of the positioning gear (717).

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