Shockproof and noise-reducing boring cutter

Abstract

The invention relates to the technical field of boring tools, and discloses a shockproof and noise-reducing boring tool which comprises a tool body and a tool bit seat, a damping structure is arranged in the tool body, a mounting clamping groove is formed in the surface of the tool bit seat, and a blade is movably clamped in the mounting clamping groove. According to the tool, through the damping structure and the assembling assembly, reliable positioning and locking of the tool bit seat and the tool body are achieved through cooperation of a positioning clamping hole and a telescopic clamping pin, and after an assembling bolt is screwed into a connecting threaded groove through a connecting screw hole, the tool body and the tool bit seat are firmly connected and assembled; shock-proof damping oil and a buffering seat supported by a buffering spring are arranged in the damping cavity, vibration energy from the tool bit seat can be directly borne and absorbed, the vibration energy is converted into elastic potential energy of the spring through deformation, the buffering and damping effects are achieved, the vibration amplitude of the buffering seat is reduced through the damping effect, the vibration energy is further consumed, and the damping effect is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of boring tools, and in particular to a boring tool with shock absorption and noise reduction. Background Art

[0002] Boring is generally carried out on boring machines, machining centers and combination machines. Boring is a method of machining existing holes using a boring tool, also known as "boring a hole". It is a cutting machining method in which the boring tool rotates as the main movement and the workpiece or the boring tool makes a feed movement.

[0003] A boring tool is a tool used for boring machining and is widely used in the field of mechanical manufacturing. The boring tool is mainly used for boring machining. It is a cutting machining method that uses a rotating single-edge to expand a prefabricated hole on the workpiece to a certain size to achieve the required accuracy and surface roughness.

[0004] During the machining process of existing boring tools, although they can complete the cutting operation, they usually lack an effective shock absorption structure and precise assembly design, which easily causes obvious vibration during machining and loosening of the tool connection, thereby affecting the machining accuracy and the service life of the tool. Moreover, the cooling and lubrication functions are not good, and there are limitations in use. Therefore, a boring tool with shock absorption and noise reduction is proposed to solve the above problems. Summary of the Invention

[0005] To make up for the above deficiencies, the present invention provides a boring tool with shock absorption and noise reduction, aiming to solve the problems in the prior art that lack of an effective shock absorption structure and precise assembly design, which easily causes obvious vibration during machining and loosening of the tool connection, thereby affecting the machining accuracy and the service life of the tool, and the cooling and lubrication functions are not good, and there are limitations in use.

[0006] To achieve the above object, the present invention adopts the following technical scheme: A boring tool with shock absorption and noise reduction, including a tool body and a tool head seat. A shock absorption structure is arranged inside the tool body. An installation slot is opened on the surface of the tool head seat. A blade is movably clamped inside the installation slot. A locking bolt is threadedly connected between the blade and the installation slot. A reinforcing rib is fixedly connected to the upper surface of the tool head seat. A spraying assembly is arranged between the tool body and the tool head seat. An assembly assembly is arranged between the tool body and the tool head seat;

[0007] The assembly assembly includes a connecting thread groove, a clamping groove, a clamping seat and a connecting screw hole. The connecting thread groove is opened on the upper surface of the tool body. The clamping groove is opened on the outer surface of the tool body. A telescopic clamping pin is fixedly connected to the inner wall of the clamping groove. The upper surface of the clamping seat is fixedly connected to the lower surface of the tool head seat. A positioning clamping hole is opened on the outer surface of the clamping seat. The connecting screw hole is opened on the upper surface of the tool head seat. An assembly bolt is threadedly connected between the connecting screw hole and the connecting thread groove.

[0008] As a further description of the above technical solution:

[0009] Both the clamping grooves and the clamping seats are provided with four, and the four clamping grooves and the clamping seats are arranged in one-to-one correspondence, and the inner wall of the clamping groove is adapted to the outer wall of the clamping seat in size.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the telescopic end of the telescopic pin is movably clamped to the inner wall of the positioning hole.

[0012] As a further description of the above technical solution:

[0013] Both the connecting screw holes and the connecting threaded grooves are provided with four, and the four connecting screw holes and the connecting threaded grooves are arranged in one-to-one correspondence.

[0014] As a further description of the above technical solution:

[0015] The shock absorption structure includes a shock absorption cavity, which is opened at the center of the upper surface of the tool body. Guide chutes are opened on both sides of the inner wall of the shock absorption cavity. A fixed seat is fixedly connected to the bottom end of the inner wall of the shock absorption cavity. A guide slider is slidably connected to the inner wall of the guide chute. A buffer seat is fixedly connected to the inner side of the guide slider.

[0016] As a further description of the above technical solution:

[0017] A buffer spring is sleeved and connected between the buffer seat and the fixed seat, and anti-vibration damping oil is filled and provided inside the shock absorption cavity and between the buffer seat and the fixed seat.

[0018] As a further description of the above technical solution:

[0019] The spraying assembly includes a channel and a spraying head. The channel is opened on the surface of the tool body. The bottom end of the spraying head is fixedly connected to the upper surface of the tool head seat, and the spraying head is connected in a through manner with the channel.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the installation card slot is provided with a locking threaded groove, and the inner wall of the locking threaded groove is adapted to the outer wall of the locking bolt in size.

[0022] The present invention has the following beneficial effects:

[0023] 1. In the present invention, through the shock-absorbing structure and the assembly component, by using the cooperation of the positioning card holes and the telescopic pins, reliable positioning and locking of the tool head seat and the tool body are achieved. After the assembly bolt is screwed into the connecting thread groove through the connecting screw hole to firmly connect the tool body and the tool head seat, the shock-absorbing cavity is filled with anti-vibration damping oil and a buffer seat supported by a buffer spring, which can directly bear and absorb the vibration energy from the tool head seat, convert the vibration energy into the elastic potential energy of the spring through deformation, achieving the effect of buffering and shock absorption. The damping effect slows down the vibration amplitude of the buffer seat, further consuming the vibration energy and enhancing the shock-absorbing effect.

[0024] 2. In the present invention, through the spraying component, the liquid is guided from the inside of the tool body to the spray head through the channel, and the spray head is fixed on the upper surface of the tool head seat near the reinforcing rib, enabling the sprayed liquid to act more accurately on the machining part. This realizes spraying coolant or cutting fluid on the machining part of the blade, playing the roles of cooling the tool, lubricating the machining surface, and flushing away chips. Description of the Drawings

[0025] Figure 1 It is an overall three-dimensional schematic diagram of a boring tool for earthquake prevention and noise reduction proposed by the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the cross-section at the shock-absorbing structure of a boring tool for earthquake prevention and noise reduction proposed by the present invention;

[0027] Figure 3 It is a schematic diagram of the internal structure of the cross-section at the shock-absorbing structure and the spraying component of a boring tool for earthquake prevention and noise reduction proposed by the present invention;

[0028] Figure 4 It is a schematic diagram of the disassembled structure at the assembly component of the tool body and the tool head seat of a boring tool for earthquake prevention and noise reduction proposed by the present invention.

[0029] Legend Explanation:

[0030] 1. Tool body; 2. Shock-absorbing structure; 21. Shock-absorbing cavity; 22. Guide chute; 23. Fixed seat; 24. Buffer seat; 25. Guide slider; 26. Buffer spring; 3. Tool head seat; 4. Spraying component; 41. Channel; 42. Spray head; 5. Installation card slot; 6. Blade; 7. Locking bolt; 8. Reinforcing rib; 9. Assembly component; 91. Connecting thread groove; 92. Clamping groove; 93. Clamping seat; 94. Telescopic pin; 95. Positioning card hole; 96. Connecting screw hole; 97. Assembly bolt. Detailed Embodiments

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Refer to Figures 2 - 4, an embodiment provided by the present invention: a boring tool for shock absorption and noise reduction, including a tool body 1 and a tool head seat 3. An installation slot 5 is provided on the surface of the tool head seat 3. By providing the installation slot 5, a precise installation and positioning space is provided for the blade 6, facilitating subsequent installation and disassembly operations. The blade 6 is movably clamped inside the installation slot 5. The blade 6 being movably clamped in the installation slot 5 enables the blade 6 to achieve preliminary positioning inside the installation slot 5, facilitating subsequent fixation. A locking bolt 7 is threadedly connected between the blade 6 and the installation slot 5. By using the threaded connection between the locking bolt 7 and the installation slot 5, the blade 6 can be firmly fixed in the installation slot 5, preventing the blade 6 from loosening during the machining process. A locking thread groove is provided on the inner wall of the installation slot 5, and the inner wall of the locking thread groove is adapted to the outer wall size of the locking bolt 7. The setting of the locking thread groove provides an internal thread structure for the locking bolt 7 to engage, ensuring the stability of the connection. The matching of their sizes ensures that the locking bolt 7 can be smoothly screwed into the locking thread groove and achieve an ideal tightening effect. A reinforcing rib 8 is fixedly connected to the upper surface of the tool head seat 3. The reinforcing rib 8 can enhance the structural strength of the tool head seat 3 and improve the anti-deformation ability of the tool head seat 3 during the cutting process, ensuring the machining accuracy. A shock-absorbing structure 2 is provided inside the tool body 1. The setting of the shock-absorbing structure 2 is to reduce the noise generated by the vibration of the tool during boring and at the same time reduce the impact of vibration on the machining accuracy. The shock-absorbing structure 2 includes a shock-absorbing cavity 21. The shock-absorbing cavity 21 provides a containing space for the entire shock-absorbing structure 2 and is the basic structure for realizing the shock-absorbing function. The shock-absorbing cavity 21 is opened at the center of the upper surface of the tool body 1. Setting the shock-absorbing cavity 21 at the center of the upper surface of the tool body 1 enables the shock-absorbing structure 2 to function evenly when the tool is stressed. Guide chutes 22 are provided on both sides of the inner wall of the shock-absorbing cavity 21. The guide chutes 22 provide a guiding function for the sliding of the guide sliders 25, ensuring that the buffer seat 24 remains stable during movement and does not deviate. A fixed seat 23 is fixedly connected to the bottom end of the inner wall of the shock-absorbing cavity 21. The fixed seat 23 serves as a fixed support point for the buffer spring 26 and the buffer seat 24, providing a stable foundation for the shock-absorbing process. A guide slider 25 is slidably connected to the inner wall of the guide chute 22. The guide slider 25 slides inside the guide chute 22 and cooperates with the buffer seat 24 to achieve the buffering effect on the vibration. A buffer seat 24 is fixedly connected to the inner side of the guide slider 25. The buffer seat 24 can directly bear and absorb the vibration energy from the tool head seat 3 and is a key component for shock absorption. A buffer spring 26 is sleeved and connected between the buffer seat 24 and the fixed seat 23. The buffer spring 26 has elasticity and can deform when the tool is vibrated, converting the vibration energy into the elastic potential energy of the spring, thereby achieving the effect of buffering and shock absorption. And an anti-vibration damping oil is filled and provided between the buffer seat 24 and the fixed seat 23 inside the shock-absorbing cavity 21. The anti-vibration damping oil can further consume the vibration energy and slow down the vibration amplitude of the buffer seat 24 through the damping effect, enhancing the shock-absorbing effect.

[0033] Referring to Figures 1 - 3 , an assembly component 9 is provided between the tool body 1 and the tool head seat 3. The function of the assembly component 9 is to achieve a firm connection between the tool body 1 and the tool head seat 3, and at the same time facilitate the disassembly and replacement of the tool head seat 3 with different blades 6. The assembly component 9 includes a connecting thread groove 91, a clamping groove 92, a clamping seat 93 and a connecting screw hole 96. The connecting thread groove 91 is opened on the upper surface of the tool body 1. The connecting thread groove 91 provides internal threads for the assembly bolt 97 to screw in, which is the key structure for realizing threaded connection. The clamping groove 92 is opened on the outer surface of the tool body 1. The clamping groove 92 is used to cooperate with the clamping seat 93 to achieve preliminary positioning and clamping. A telescopic clamping pin 94 is fixedly connected to the inner wall of the clamping groove 92. The telescopic clamping pin 94 can automatically extend after the clamping seat 93 is inserted into the clamping groove 92 and is clamped into the positioning card hole 95 to achieve rapid positioning and locking. The upper surface of the clamping seat 93 is fixedly connected to the lower surface of the tool head seat 3. The clamping seat 93, as the component for clamping the tool head seat 3 and the tool body 1, ensures the connection accuracy between the two. Both the clamping groove 92 and the clamping seat 93 are provided with four. The four clamping grooves 92 and the clamping seats 93 are arranged in one-to-one correspondence. The corresponding arrangement of the four clamping grooves 92 and the clamping seats 93 can make the tool body 1 and the tool head seat 3 be firmly connected in all directions, improving the reliability of the connection. And the inner wall of the clamping groove 92 and the outer wall of the clamping seat 93 are of matching dimensions. The matching dimensions ensure that the clamping seat 93 can be smoothly inserted into the clamping groove 92 and achieve a tight fit. A positioning card hole 95 is opened on the outer surface of the clamping seat 93. The positioning card hole 95 is used to cooperate with the telescopic clamping pin 94 to achieve the positioning and fixing of the clamping seat 93. The outer wall of the telescopic end of the telescopic clamping pin 94 is movably clamped to the inner wall of the positioning card hole 95. The positioning card hole 95 is used to cooperate with the telescopic clamping pin 94 to achieve the positioning and fixing of the clamping seat 93. This clamping method can provide reliable positioning and locking functions when the tool body 1 and the tool head seat 3 are connected. The connecting screw hole 96 is opened on the upper surface of the tool head seat 3. An assembly bolt 97 is threadedly connected between the connecting screw hole 96 and the connecting thread groove 91. The connecting screw hole 96 and the connecting thread groove 91 cooperate to provide a screw-in through groove for the assembly bolt 97. The assembly bolt 97 is screwed into the connecting thread groove 91 through the connecting screw hole 96 to firmly connect the tool body 1 and the tool head seat 3 together. Both the connecting screw hole 96 and the connecting thread groove 91 are provided with four, and the four connecting screw holes 96 and the connecting thread grooves 91 are arranged in one-to-one correspondence. The corresponding arrangement of the four connecting screw holes 96 and the connecting thread grooves 91 further enhances the stability of the connection between the tool body 1 and the tool head seat 3 and disperses the force at the connection part.

[0034] Referring to Figure 1 , Figure 3 and Figure 4, a jetting assembly 4 is arranged between the tool body 1 and the tool head seat 3. The jetting assembly 4 is mainly used to jet coolant or cutting fluid to the machining part of the blade 6, so as to cool the tool, lubricate the machining surface and wash away chips. The jetting assembly 4 includes a channel 41 and a jetting head 42. The channel 41 and the jetting head 42 are the main components of the jetting assembly 4, jointly realizing the functions of liquid transportation and jetting. The channel 41 is opened on the surface of the tool body 1. The channel 41 provides a flow-through groove for the transportation of liquid, guiding the liquid from the inside of the tool body 1 to the jetting head 42. The bottom end of the jetting head 42 is fixedly connected to the upper surface of the tool head seat 3 on the side close to the reinforcing rib 8. Fixing the jetting head 42 on the upper surface of the tool head seat 3 on the side close to the reinforcing rib 8 can make the jetted liquid act more accurately on the machining part. The jetting head 42 is connected to the channel 41 in a through manner, and the through connection ensures that the liquid can smoothly flow from the channel 41 into the jetting head 42 and spray out from the jetting head 42.

[0035] Working principle: When in use, first, the blade 6 is positioned through the installation slot 5, and the fastening is completed by the cooperation of the locking bolt 7 and the locking thread groove, ensuring that the blade 6 is firmly installed on the tool head seat 3. At the same time, the reinforcing rib 8 improves the structural strength of the tool head seat 3, ensuring the stability during cutting. Then, the connection between the tool body 1 and the tool head seat 3 is realized through the assembly component 9. After the clamping seat 93 is inserted into the clamping groove 92, the telescopic clamping pin 94 automatically clamps into the positioning hole 95 to complete the preliminary positioning. Then, the assembly bolt 97 passes through the connecting screw hole 96 and is screwed into the connecting thread groove 91 to realize the firm connection between the two. During the machining process, the vibration generated by the tool is transmitted to the damping structure 2 inside the tool body 1 through the tool head seat 3. Under the guidance of the guiding slider 25 and the guiding chute 22, the buffer seat 24 compresses the buffer spring 26 and drives the anti-vibration damping oil to flow, converting the vibration energy into the elastic potential energy of the spring and the internal energy of the damping oil, thereby effectively reducing vibration and noise. At the same time, the jetting assembly 4 transports the coolant or cutting fluid to the jetting head 42 through the channel 41, and the jetting head 42 sprays the liquid onto the machining part of the blade 6 to cool and lubricate the tool and wash away chips, ensuring the machining accuracy and the service life of the tool.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A boring tool for shock absorption and noise reduction, comprising a tool body (1) and a tool head seat (3), characterized in that: Inside the tool body (1), a shock absorption structure (2) is provided. On the surface of the tool head seat (3), an installation slot (5) is opened. Inside the installation slot (5), a blade (6) is movably clamped. Between the blade (6) and the installation slot (5), a locking bolt (7) is threadedly connected. On the upper surface of the tool head seat (3), a reinforcing rib (8) is fixedly connected. Between the tool body (1) and the tool head seat (3), a spraying assembly (4) is provided. Between the tool body (1) and the tool head seat (3), an assembling assembly (9) is provided; The assembling assembly (9) includes a connecting thread groove (91), a clamping groove (92), a clamping seat (93), and a connecting screw hole (96). The connecting thread groove (91) is opened on the upper surface of the tool body (1). The clamping groove (92) is opened on the outer surface of the tool body (1). On the inner wall of the clamping groove (92), a telescopic clamping pin (94) is fixedly connected. On the upper surface of the clamping seat (93), it is fixedly connected to the lower surface of the tool head seat (3). On the outer surface of the clamping seat (93), a positioning clamping hole (95) is opened. The connecting screw hole (96) is opened on the upper surface of the tool head seat (3). Between the connecting screw hole (96) and the connecting thread groove (91), an assembling bolt (97) is threadedly connected.

2. The boring tool for earthquake protection and noise reduction according to claim 1, characterized in that: Both the clamping groove (92) and the clamping seat (93) are provided with four. The four clamping grooves (92) and clamping seats (93) are arranged in one-to-one correspondence, and the inner wall of the clamping groove (92) is adapted to the outer wall size of the clamping seat (93).

3. The boring tool for earthquake prevention and noise reduction according to claim 1, characterized in that: The outer wall of the telescopic end of the telescopic clamping pin (94) is movably clamped to the inner wall of the positioning clamping hole (95).

4. A boring tool for shock absorption and noise reduction according to claim 1, characterized in that: Both the connecting screw hole (96) and the connecting thread groove (91) are provided with four, and the four connecting screw holes (96) and connecting thread grooves (91) are arranged in one-to-one correspondence.

5. A boring tool for shock absorption and noise reduction according to claim 1, characterized in that: The shock absorption structure (2) includes a shock absorption cavity (21). The shock absorption cavity (21) is opened at the center of the upper surface of the tool body (1). On both sides of the inner wall of the shock absorption cavity (21), guiding sliding grooves (22) are opened. At the bottom end of the inner wall of the shock absorption cavity (21), a fixed seat (23) is fixedly connected. On the inner wall of the guiding sliding groove (22), a guiding sliding block (25) is slidably connected. Inside the guiding sliding block (25), a buffer seat (24) is fixedly connected.

6. The boring tool for earthquake prevention and noise reduction according to claim 5, characterized in that: Between the buffer seat (24) and the fixed seat (23), a buffer spring (26) is sleeved and connected, and inside the shock absorption cavity (21) and between the buffer seat (24) and the fixed seat (23), anti-vibration damping oil is filled.

7. A boring tool for shock absorption and noise reduction according to claim 1, characterized in that: The spraying assembly (4) includes a channel (41) and a spraying head (42). The channel (41) is opened on the surface of the tool body (1). The bottom end of the spraying head (42) is fixedly connected to the upper surface of the tool head seat (3). The spraying head (42) is connected through and communicated with the channel (41).

8. A boring tool for shock absorption and noise reduction according to claim 1, characterized in that: On the inner wall of the installation slot (5), a locking thread groove is opened, and the inner wall of the locking thread groove is adapted to the outer wall size of the locking bolt (7).

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