Damping cutter bar

Abstract

The utility model provides a damping cutter bar, and relates to the technical field of cutter bar processing, the damping cutter bar comprises a bar handle, the rear end of the bar handle is fixedly connected with an installation head, the other end of the installation head is provided with a circular groove, a damper is installed in the circular groove, and a convex piece is embedded in one end of the installation head and located at the circular groove; the damping cutter bar can be adjusted through a damping system of the damping cutter bar, the effect of absorbing cutting vibration of the cutter head part can be achieved, the effect of reducing cutter marks and vibration marks of an HP Fitting workpiece can be achieved, the machining precision of a cutter can be improved, the service life of the cutter can be prolonged, meanwhile, the surface quality of the workpiece can be improved, the cutter head body can be separated from the cutter bar, and the machining efficiency is improved. The tool bit is simple in structure, convenient to use and high in assembling, locking and positioning precision and strength, the effect of conveniently replacing the tool bit when the tool bit is abraded or collided can be achieved, meanwhile, only the tool bit body needs to be replaced to the minimum degree, and the effect of avoiding economic and time losses can be achieved. Therefore, the effect of preparing for subsequent optimization or new product development can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of tool holder processing technology, and in particular to a vibration-damping tool holder. Background Technology

[0002] HP Fitting is a precision component in our company's key automotive fuel pump project. The customer has extremely high requirements for the sealing performance of its 60° sealing cone bore assembly. To achieve the high sealing performance quality requirements, the machined mating surfaces of the 60° sealing cone bore must not only meet the dimensional and surface roughness requirements on the customer's drawings, but also be free from appearance defects such as vibration marks, tool marks, and scratches.

[0003] To enhance the market competitiveness of our HP Fitting components, we have selected the SHUT multi-axis machining center, known for its high precision, efficiency, and quality. Due to its multi-axis machining nature, this machine inevitably encounters resonance issues when machining the 60° sealing surface of HP fittings. This resonance causes uneven force distribution on the cutting tool during the cutting process, leading to occasional tool vibration and resulting in surface defects such as grooves and tool marks on the workpiece. To address this issue, a vibration-damping tool holder adapted to the SHUT multi-axis machining center needs to be developed. The aim is to absorb cutting vibrations from the tool head through the tool holder's own damping system, thereby reducing tool marks and grooves on the workpiece. Utility Model Content

[0004] This utility model mainly provides a shock-absorbing tool bar that can absorb cutting vibrations from the tool head through its own damping system, thereby reducing the generation of tool marks and vibration patterns on the workpiece.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a shock-absorbing tool bar, comprising: a handle, a mounting head fixedly connected to the rear end of the handle, a circular groove opened at the other end of the mounting head, a damper installed inside the circular groove, a protrusion embedded at one end of the mounting head and located in the circular groove, a coolant sleeve installed inside the circular groove, a tool head body provided on the surface of the protrusion, and a blade embedded and installed on the surface of the tool head body.

[0006] Preferably, the surface of the mounting head is symmetrically provided with mounting grooves. This arrangement ensures that the vibration damping tool bar can be installed and positioned coaxially.

[0007] Preferably, the surface of the mounting head has two sealing ring grooves, and a sealing ring is embedded in the interior of each sealing ring groove. With the above arrangement, it can be ensured that when the internal cooling water of the tool holder is discharged, the cutting oil can be concentrated from the center of the tool holder and not discharged from the shank.

[0008] Preferably, the surface of the cutter head body is provided with four first mounting holes, and each of the first mounting holes is fitted with and threaded with a mounting component. Through the above arrangement, the cutter head body can be installed and fixed.

[0009] Preferably, the cutter head body and the protrusion are fixedly connected with limiting teeth at equal intervals, and the limiting teeth mesh with each other. Through the above arrangement, the cutting head body and the protrusion can be limited.

[0010] Preferably, the surface of the handle is provided with second mounting holes symmetrically located at the protrusion. This arrangement can effectively fix the protrusion in place.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the vibration damping tool holder can be adjusted through its own damping system, which can absorb the cutting vibration of the tool head, thereby reducing the generation of tool marks and vibration patterns on HP Fitting workpieces, thus improving the machining accuracy and life of the tool, and also improving the surface quality of the workpiece.

[0013] 2. In this utility model, the cutter head body can be separated from the cutter shank, and the assembly locking positioning accuracy and strength are excellent. This facilitates the replacement of the cutter head when it is worn or damaged, while requiring only minimal replacement of the cutter head body, thus avoiding economic and time losses. This serves as preparation for subsequent optimization or new product development. Attached Figure Description

[0014] Figure 1 A three-dimensional view of the overall structure of a shock-absorbing tool holder is provided for this utility model;

[0015] Figure 2 An internal view of the overall structure of a shock-absorbing tool holder is provided for this utility model;

[0016] Figure 3 A cross-sectional view of the overall structure of a shock-absorbing tool holder is provided for this utility model;

[0017] Figure 4 A plan view of the cutter head structure of a shock-absorbing cutter bar is provided for this utility model;

[0018] Figure 5 A three-dimensional view of the cutter head structure of a shock-absorbing cutter bar is provided for this utility model;

[0019] Figure 6 An internal view of the cutter head structure of a shock-absorbing cutter bar is provided for this utility model.

[0020] Legend: 1. Rod handle; 2. Mounting head; 3. Mounting groove; 4. Sealing ring groove; 5. Sealing ring; 6. Circular groove; 7. Damper; 8. Protrusion; 9. Coolant sleeve; 10. Cutter head body; 11. Blade; 12. First mounting hole; 13. Mounting component; 14. Limiting tooth; 15. Second mounting hole. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Please see Figures 1-6 This utility model provides a vibration damping tool holder, comprising: a handle 1, a mounting head 2 fixedly connected to the rear end of the handle 1, a circular groove 6 opened at the other end of the mounting head 2, a damper 7 installed inside the circular groove 6, a protrusion 8 embedded at one end of the mounting head 2 located in the circular groove 6, a coolant sleeve 9 installed inside the circular groove 6, a tool head body 10 provided on the surface of the protrusion 8, and a blade 11 embedded and installed on the surface of the tool head body 10. Through the above arrangement, the vibration damping tool holder can be adjusted by the damper 7 inside the circular groove 6, which can absorb the cutting vibration of the tool head and reduce the tool marks and vibration patterns generated on HP Fitting workpieces.

[0024] like Figure 1 and Figure 2 As shown, mounting grooves 3 are symmetrically provided on the surface of the mounting head 2. Through the above-mentioned arrangement, the mounting grooves 3 can ensure that the shock-absorbing tool bar can be installed and positioned coaxially.

[0025] like Figure 3 As shown, the surface of the mounting head 2 has two sealing ring grooves 4, and a sealing ring 5 is embedded in the inside of each sealing ring groove 4. With the above setting, it can be ensured that when the internal cooling water of the tool holder is discharged, the cutting oil can be concentrated from the center of the tool holder and not discharged from the shank.

[0026] like Figure 4 and Figure 5 As shown, the surface of the cutter head body 10 is provided with four first mounting holes 12. Each of the first mounting holes 12 is fitted with a mounting component 13 and threadedly connected. Through the above arrangement, the cutter head body 10 can be installed and fixed.

[0027] like Figure 6 As shown, the cutter head body 10 and the protrusion 8 are fixedly connected with limiting teeth 14 at equal intervals. The limiting teeth 14 mesh with each other. Through the above arrangement, the cutting head body 10 and the protrusion 8 can be limited.

[0028] like Figure 1 As shown, a second mounting hole 15 is symmetrically provided on the surface of the handle 1 and at the protrusion 8. Through the above arrangement, the protrusion 8 can be installed and fixed.

[0029] The usage and working principle of this device are as follows: The coolant sleeve 9 and damper 7 are installed inside the circular groove 6, and the protrusion 8 is embedded inside the circular groove 6. The protrusion 8 is then fixed in place by screws passing through the second mounting hole 15. One end of the protrusion 8 engages with the limiting teeth 14 between it and the cutter head body 10. The cutter head body 10 is then fixed in place by screws passing through the first mounting hole 12. The cutting blade 11 is then installed on the cutter head body 10. The mounting head 2 is then embedded into the tool holder. Through adjustment of its own damping system, the device can absorb some of the cutting vibration of the cutter head body 10, thereby reducing tool marks and vibration patterns on HP Fitting workpieces, improving tool machining accuracy and lifespan, and also improving workpiece surface quality.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A vibration-damping tool holder, characterized in that, include: A handle (1) is fixedly connected to a mounting head (2) at its rear end. A circular groove (6) is provided at the other end of the mounting head (2). A damper (7) is installed inside the circular groove (6). A protrusion (8) is embedded at one end of the mounting head (2) and located in the circular groove (6). A coolant sleeve (9) is installed inside the circular groove (6). A cutter body (10) is provided on the surface of the protrusion (8). A blade (11) is embedded and installed on the surface of the cutter body (10).

2. The shock-absorbing tool holder according to claim 1, characterized in that: The surface of the mounting head (2) is symmetrically provided with mounting grooves (3).

3. A vibration-damping tool holder according to claim 1, characterized in that: The surface of the mounting head (2) has two sealing ring grooves (4), and a sealing ring (5) is embedded in the interior of each sealing ring groove (4).

4. A vibration-damping tool holder according to claim 1, characterized in that: The surface of the cutter head body (10) is provided with four first mounting holes (12), and each of the first mounting holes (12) is fitted with a mounting component (13) and threadedly connected.

5. A vibration-damping tool holder according to claim 1, characterized in that: The cutter head body (10) and the protrusion (8) are fixedly connected with limiting teeth (14) at equal intervals, and the limiting teeth (14) mesh with each other.

6. A vibration-damping tool holder according to claim 1, characterized in that: The surface of the handle (1) is provided with a second mounting hole (15) symmetrically located at the protrusion (8).

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