Fine boring cutter for outer circle of annular groove

Abstract

The utility model discloses a fine boring cutter for an outer circle of an annular groove. The fine boring cutter comprises a cutter head, a cutter handle and a cutter, the tool bit is provided with a fine adjustment fixing assembly used for adjusting the position of the tool. The tool comprises a blade and a tool apron, the tool apron is provided with a reinforcing fixing part and a connecting part, the connecting part is used for connecting the fine-tuning fixing assembly, and the blade and the connecting part are located at the two ends of the reinforcing fixing part respectively. Due to the design of the reinforcing fixing part on the tool apron, the rigidity and the stability of the tool apron are enhanced, vibration and deformation generated in the cutting process can be reduced, the blade is protected against damage, and the service life of the tool is prolonged; due to the existence of the fine adjustment fixing assembly, the cutter can be adjusted quickly, simply and conveniently, the time wasted by adjusting the position of the cutter is shortened, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of machining, in particular to a fine boring tool for the outer circle of an annular groove. Background Art

[0002] A boring tool is a kind of hole machining tool. Generally, it has a round shank, and for larger workpieces, a square tool shank is used, which is generally seen in vertical lathes. The most common application is for internal hole machining, reaming, profiling, etc. of workpieces. However, it is not only used for internal hole machining. The end face and outer circle can also be machined, but it is not commonly used in this way. A boring tool has one or two cutting parts and is a tool specifically used for rough machining, semi-finishing or finishing of existing holes. The boring tool can be used on a boring machine, a lathe or a milling machine.

[0003] In the "Tool for Machining an Annular Groove" disclosed in the publication number CN107737956A, it includes a tool body and an annular clamping part provided at the end of the tool body. The annular clamping part is provided with an axial positioning surface for installing a cutting blade. The radial cross-section of the annular clamping part is provided with a chip removal notch along the circumferential direction from the axial positioning surface. The cutting blade is detachably and fixedly connected to the axial positioning surface, and the cutting edge part of the cutting blade protrudes from the end wall of the annular clamping part. By applying the annular groove machining tool disclosed in the present invention, the strength and rigidity of the tool are improved through the annular clamping part. The annular groove can be machined once by a lathe, a milling machine or a boring machine, and the annular groove can be machined to the drawing by using this tool in one clamping, without the need to additionally add other finishing processes, significantly improving the production efficiency of product parts. However, the above device has certain limitations for machining the outer circle of an end face groove with a relatively shallow machining depth, and it cannot be accurately machined, and the machining quality cannot be guaranteed. Summary of the Invention

[0004] In order to overcome the defects in the above-mentioned prior art, a fine boring tool for the outer circle of an annular groove with high machining accuracy and wide applicability is provided.

[0005] The technical solution of the utility model is as follows: A fine boring tool for the outer circle of an annular groove includes a tool head, a tool shank and a tool. A fine adjustment and fixing component for adjusting the position of the tool is provided on the tool head. The tool includes a cutting blade and a tool holder. The tool holder is provided with a strengthening and fixing part and a connecting part. The connecting part is used for connecting the fine adjustment and fixing component. The cutting blade and the connecting part are respectively located at both ends of the strengthening and fixing part. The design of the strengthening and fixing part on the tool holder enhances the rigidity and stability of the tool holder, helps to reduce the vibration and deformation generated during the cutting process, thereby protecting the cutting blade from damage and prolonging the service life of the tool. The presence of the fine adjustment and fixing component makes the tool adjustment fast and simple, reducing the time wasted due to adjusting the tool position, thereby improving the production efficiency.

[0006] Preferably, the surface of one side of the strengthening and fixing part is arc-shaped. The arc-shaped surface may enhance the rigidity of the strengthening and fixing part by optimizing the structural distribution. The improvement of rigidity helps to resist the deformation caused by the cutting force and maintain the stability of the tool during the machining process. The arc-shaped structure reduces the vibration of the tool during cutting, thereby improving the machining accuracy and surface quality.

[0007] Preferably, the fine-tuning fixing assembly includes a fine-tuning component and a slider locking screw; the fine-tuning component is assembled in the tool head through the slider locking. The slider locking screw is used to firmly assemble the fine-tuning component and the tool head together to ensure that it will not loosen due to vibration or impact during the machining process. The slider locking screw provides the necessary clamping force and stability, enabling the tool head to accurately perform the machining task.

[0008] Preferably, the fine-tuning component includes an active fine-tuning part and a passive fine-tuning part connected by threads. The fine-tuning component connected by threads can achieve high-precision position adjustment to meet the requirements of precision machining and measurement.

[0009] Preferably, a fine-tuning scale disk is provided at the upper end of the active fine-tuning part, and the fine-tuning scale disk is assembled on the outer side wall of the tool head. The fine-tuning scale disk is marked with scales or numbers, which are used to indicate the current position of the active fine-tuning part or the adjusted relative amount. It helps the operator to understand how much adjustment has been made and determine whether the required adjustment amount has been reached.

[0010] Preferably, the lower end of the passive fine-tuning part is connected to the tool holder. This ensures that the fine-tuning component can be stably installed on the tool holder and the tool position can be precisely controlled by adjusting the active fine-tuning part.

[0011] Preferably, the active fine-tuning part, the passive fine-tuning part and the connecting part are on the same axis. This enhances the accuracy and stability of the fine-tuning component. This coaxial design ensures that the force transmission is more direct and efficient, reducing the friction and error caused by offset or misalignment.

[0012] Preferably, a locking bolt is provided between the tool holder and the passive fine-tuning part, and the locking bolt is assembled in the bolt hole provided in the connecting part. The main function of the locking bolt is to firmly fix the passive fine-tuning part on the tool holder to prevent the position offset caused by vibration or impact during the machining process.

[0013] Preferably, a connecting shank for installing the tool handle is connected to one end of the tool head, and the connecting shank and the tool handle are fixed by screws. The main function of the connecting shank is to tightly connect the tool handle and the tool head together, and form a stable mechanical connection with the tool head through screws.

[0014] Preferably, the blade is assembled at the end of the strengthening and fixing part through bolts. This assembly method is applicable to various different types of blades and strengthening and fixing parts, and can be selected and matched according to specific requirements.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] An external fine boring tool for the outer circle of an annular groove allows the operator to finely adjust the tool position during the machining process through a fine adjustment fixing component. This fine adjustment ability is crucial for achieving high-precision machining, and can compensate for small deviations caused by wear, temperature changes, or material differences, thereby ensuring machining accuracy. The tool holder ensures the precise docking between the blade and the fine adjustment fixing component through the optimized design of the strengthening and fixing part and the connecting part, further improving the machining accuracy.

[0017] Furthermore, the presence of the fine adjustment fixing component makes the tool adjustment fast and simple, reducing the time wasted due to adjusting the tool position, thereby improving production efficiency.

[0018] Furthermore, the tool is applicable to machining various complex shapes such as annular grooves, and is particularly suitable for machining the outer circle of an end face groove with a relatively shallow depth.

[0019] Other features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. Description of the Drawings

[0020] The following further describes the utility model with reference to the drawings:

[0021] Figure 1 It is an installation schematic diagram of an external fine boring tool for the outer circle of an annular groove of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the tool head and the tool of the utility model;

[0023] Figure 3 It is an installation schematic diagram of the locking bolt of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the fine adjustment component of the utility model;

[0025] The description of the reference numerals in the drawings is as follows:

[0026] Tool head 1, tool shank 2, tool 3, fine adjustment fixing component 4, blade 31, tool holder 32, strengthening and fixing part 321, connecting part 322, fine adjustment component 41, slider locking screw 42, active fine adjustment part 411, passive fine adjustment part 412, fine adjustment dial 413, locking bolt 5, bolt hole 51, threaded interface part 11. Detailed Description of the Preferred Embodiment

[0027] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0028] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0029] like Figures 1 to 4 As shown, a circular groove external cylindrical fine boring tool comprises a cutter head 1, a tool handle 2 and a tool 3; a fine-tuning fixing assembly 4 for adjusting the position of the tool 3 is provided on the cutter head 1; the tool 3 comprises a blade 31 and a tool seat 32, the tool seat 32 is fixed to the cutter head 1 by a locking screw, the other end of the cutter head 1 is mounted on the tool handle 2, one end of the cutter head 1 is connected with a connecting handle 11 for mounting the tool handle 2, the main function of the connecting handle 11 is to tightly connect the tool handle 2 with the cutter head 1, increase the contact area, and improve stability; the connecting handle 11 and the tool handle 2 are fixed by screws, and the screws make the connecting handle 11 form a stable mechanical connection with the cutter head 1 to avoid falling off during work and accidents; the tool handle 2 is fixed on the machine tool, and different types of machine tool spindle interfaces can arbitrarily replace the corresponding tool handle 2 for installation and processing.

[0030] Furthermore, the connecting handle 11 is provided with an internal threaded mounting hole for the screw to pass through, so as to facilitate installation and disassembly by the operator and improve the operating efficiency.

[0031] The blade holder 32 is provided with a reinforcing fixing portion 321 and a connecting portion 322. The connecting portion 322 is used to connect the fine-tuning fixing assembly 4. The blade 31 and the connecting portion 322 are respectively located at both ends of the reinforcing fixing portion 321. The main function of the reinforcing fixing portion 321 is to provide additional structural strength and stability to ensure that the blade 31 can be firmly fixed on the blade holder during operation and will not loosen or fall off due to vibration or impact. The length direction of the reinforcing fixing portion 321 is consistent with the axial direction of the cutter head 1; the consistency of the axial direction also means that the cutting or processing direction of the blade 31 will be consistent with the overall movement direction of the cutter head, which helps to achieve higher processing accuracy and efficiency.

[0032] In this embodiment, the blade 31 adopts a standard ISO blade, which is convenient for procurement; the blade 31 is assembled at the end of the strengthening and fixing part 321 through bolts, which facilitates the installation and disassembly of the blade 31 and improves the stability of the blade 31; the tool holder 32 adopts a standard precision boring tool holder installation interface and is directly installed on the tool head 1 of the standard fine-tuning precision boring tool, which can save procurement costs and shorten the delivery period. The surface of the strengthening and fixing part 321 facing the tool head 1 is arc-shaped; the strengthening and fixing part 321 is used to fix the connecting part 322 and the blade 31, and the diameter of the strengthening and fixing part 321 from the connecting part 322 to the blade 31 gradually decreases. The other side of the strengthening and fixing part 321 is of an inclined structure. The arc-shaped structure and the inclined structure enhance the rigidity of the tool holder 32 and improve the stability during processing.

[0033] Among them, the fine-tuning fixing assembly 4 includes a fine-tuning assembly 41 and a slider locking screw 42; the fine-tuning assembly 41 is assembled in the tool head 1 through the slider locking screw 42. The fine-tuning assembly 41 includes an active fine-tuning part 411 and a passive fine-tuning part 412 that are threadedly connected. The upper end of the active fine-tuning part 411 is provided with a fine-tuning scale 413, and the fine-tuning scale 413 is assembled on the outer side wall of the tool head 1. The operator can directly perform fine-tuning operations without disassembling the tool head, which improves the convenience of use; the fine-tuning scale 413 not only serves as a handle for rotating operations but also provides an intuitive visual reference. The operator can precisely control the fine-tuning amount by observing the scale on the scale. The lower end of the passive fine-tuning part 412 is connected to the tool holder 32; when the active fine-tuning part 411 rotates, due to the principle of threaded connection, the passive fine-tuning part 412 will move up and down relative to the active fine-tuning part 411, thereby driving the tool holder 32 and the blade 31 fixed on the tool holder to perform fine-tuning.

[0034] Furthermore, the active fine-tuning part 411, the passive fine-tuning part 412, and the connecting part 322 are on the same axis. The axis consistency helps to enhance the stability of the entire fine-tuning system. When all components are on the same axis, their interactions are more stable, reducing the risk of position offset caused by vibration or impact.

[0035] Among them, a locking bolt 5 is provided between the tool holder 32 and the passive fine-tuning part 412, and the locking bolt 5 is assembled in the bolt hole 51 provided in the connecting part 322. A firm connection between the tool holder 32 and the passive fine-tuning part is achieved; relative movement caused by vibration or impact force during the working process is prevented, ensuring the stability of the blade position.

[0036] In this embodiment, when in use, first loosen the slider locking screw 42 on the tool head 1 so that the fine adjustment fixing assembly 4 can adjust the position of the tool 3. Then rotate the fine adjustment dial 413 to adjust the tip size of the blade 31 to the size required by the drawing. After that, tighten the slider locking screw 42 to start machining. If size adjustment is needed, repeat the above steps. This tool is designed specifically for machining the outer circle of end face grooves with relatively shallow depths. Since the outer circle dimensions and cylindricity requirements of such parts are relatively high and the interference clearance is limited, a standard fine boring outer circle tool cannot be used. Compared with the traditional method of milling the outer circle with a milling cutter, this tool can obtain better cylindricity and higher machining efficiency.

[0037] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A circular groove outer circle fine boring tool, characterized in that: The invention comprises a cutter head (1), a cutter handle (2) and a cutter (3); the cutter head (1) is provided with a fine-adjustment fixing assembly (4) for adjusting the position of the cutter (3); the cutter (3) comprises a blade (31) and a cutter holder (32); the cutter holder (32) is provided with a reinforcing fixing portion (321) and a connecting portion (322); the connecting portion (322) is used to connect to the fine-adjustment fixing assembly (4); the blade (31) and the connecting portion (322) are respectively located at two ends of the reinforcing fixing portion (321). The fine-tuning fixing assembly (4) comprises a fine-tuning assembly (41) and a slider locking screw (42); the fine-tuning assembly (41) is assembled in the cutter head (1) via the slider locking screw (42); the fine-tuning assembly (41) comprises an active fine-tuning member (411) and a passive fine-tuning member (412) which are threadedly connected; a fine-tuning dial (413) is provided at the upper end of the active fine-tuning member (411), and the fine-tuning dial (413) is assembled on the outer side wall of the cutter head (1).

2. The annular groove outer circle fine boring tool according to claim 1, characterized in that: The surface of one side of the reinforcing fixing portion (321) is arc-shaped.

3. The annular groove outer circle fine boring tool according to claim 1, characterized in that: The lower end of the passive fine-tuning component (412) is connected to the knife seat (32).

4. The annular groove outer circle fine boring tool according to claim 1, characterized in that: The active fine-tuning component (411), the passive fine-tuning component (412) and the connecting portion (322) are on the same axis.

5. The annular groove outer circle fine boring tool according to claim 3, characterized in that: A locking bolt (5) is provided between the knife seat (32) and the passive fine-tuning member (412), and the locking bolt (5) is assembled in a bolt hole (51) provided in the connecting portion (322).

6. The annular groove outer circle fine boring tool according to claim 1, characterized in that: One end of the tool head (1) is connected to a connecting handle (11) for mounting a tool handle (2), and the connecting handle (11) and the tool handle (2) are fixed by means of screws.

7. The annular groove outer circle fine boring tool according to claim 1, characterized in that: The blade (31) is assembled on the end of the reinforcing fixing portion (321) by means of bolts.

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