CN218873773U - Magneto-rheological damping vibration-damping cutter head - Google Patents
Magneto-rheological damping vibration-damping cutter head Download PDFInfo
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- CN218873773U CN218873773U CN202222909988.6U CN202222909988U CN218873773U CN 218873773 U CN218873773 U CN 218873773U CN 202222909988 U CN202222909988 U CN 202222909988U CN 218873773 U CN218873773 U CN 218873773U
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Abstract
The utility model discloses a magneto-rheological damping vibration attenuation tool bit, which comprises a shell, a rear end cover, a shell magnetic conduction device, a central core magnetic conduction device and a tool bit, wherein the shell is in threaded connection with the rear end cover; the shell is internally provided with a core magnetic conduction device and a shell magnetic conduction device; a gap is formed between the shell magnetic conduction device and the core magnetic conduction device, and magnetorheological fluid is filled in the gap to form a magnetorheological damping channel; the cutter head is fixed at one end of the shell through a screw. The utility model discloses simple structure through the damping motion of well core magnetic conduction device, reaches the damping purpose to through electric current size control magnetorheological suspensions viscosity, change well core magnetic conduction device's resistance, realize the tool bit that the damping force changes.
Description
Technical Field
The utility model relates to a tool bit especially relates to a tool bit with damping vibration attenuation.
Background
Different materials are cut through a lathe, and different tool bits need to be replaced sometimes; and to cutting different materials on same lathe, traditional tool bit has the tool bit vibration of different degrees when cutting materials, and the vibration frequency of cutting different hardness material tool bits is also different, if not carry out the damping measure and probably lead to cutting materials rejection rate height, or the serious condition of tool bit wearing and tearing, needs frequent change tool bit, causes manufacturing cost's increase. Therefore, when different materials are cut on the same lathe, it is necessary to perform multi-harmonic vibration control in order to adapt the tool bit to vibration generated when cutting a plurality of materials.
Disclosure of Invention
Based on the above description, the utility model provides a magnetic current becomes damping vibration attenuation tool bit through the damping motion of well core magnetic device, reaches the damping purpose to through electric current size control magnetic current becomes the liquid viscosity, change well core magnetic device's resistance, realize the tool bit that the damping force changes, guarantee the stability of tool bit when the cutting, make product yield can improve greatly.
The utility model discloses the technical scheme who adopts as follows:
the magneto-rheological damping vibration attenuation tool bit comprises a shell, a rear end cover, a shell magnetic conduction device, a middle core magnetic conduction device and a tool bit, wherein the shell is in threaded connection with the rear end cover; the center of the shell is provided with a central core magnetic conduction device and a shell magnetic conduction device in sequence from the center to the outside; the cutter head is fixed at one end of the shell through a screw; a gap is formed between the shell magnetic conduction device and the core magnetic conduction device, and magnetorheological fluid is filled in the gap to form a magnetorheological damping channel;
the shell magnetic conduction device comprises an outer head magnetizer, an outer tail magnetizer and an outer middle magnetizer; the outer tail magnetizer is positioned on the bottom of the shell; the outer head magnetizer is positioned at the end part of the shell; the two ends of the outer middle magnetizer are respectively connected with the outer tail magnetizer and the outer head magnetizer;
an outer middle magnetizer including a first outer middle magnetizer, a second outer middle magnetizer and a third outer middle magnetizer; a first outer magnetism isolating ring is arranged between the first outer middle magnetizer and the second outer middle magnetizer; a second outer magnetism isolating ring is arranged between the second outer middle magnetizer and the third outer middle magnetizer; the first outer middle magnetizer, the second outer middle magnetizer and the third outer middle magnetizer are respectively provided with an outer magnetism isolating cylinder; the first outer middle magnetizer is connected with the outer tail magnetizer; the third outer middle magnetizer is connected with the outer end magnetizer;
the central core magnetic conduction device comprises an inner head magnetizer, an inner tail magnetizer and an inner middle magnetizer; the magnetizer at the inner middle part is in a sawtooth shape; the inner middle magnetizer is respectively connected with the inner head magnetizer and the inner tail magnetizer;
an inner middle magnetizer including a first inner middle magnetizer, a second inner middle magnetizer and a third inner middle magnetizer; a first inner isolation magnetic ring is arranged between the first inner middle magnetizer and the second inner middle magnetizer; a second inner magnetic isolation ring is arranged between the second inner middle magnetizer and the third inner middle magnetizer; conductive coils are respectively wound at the concave parts of the first inner middle magnetizer, the second inner middle magnetizer and the third inner middle magnetizer, and an inner magnetism isolating cylinder is arranged outside the conductive coils; the inner magnetism isolating cylinder corresponds to the outer magnetism isolating cylinder, and a gap is arranged between the inner magnetism isolating cylinder and the outer magnetism isolating cylinder;
a pipeline is arranged in the center of the central core magnetic conduction device, and a lead is communicated in the pipeline; one end of the lead is connected with the conductive coil, and the other end of the lead is connected with an external power supply;
an inner tail magnetic separation sheet is fixed at the concave position at the bottom of the inner tail magnetizer; the end concave part of the magnetizer at the inner end is fixed with an inner end magnetic shield; the inner tail magnetizer is wrapped with an inner tail magnetism isolating cylinder; the inner end magnetizer is wrapped with an inner end magnetism isolating cylinder.
Further, an annular gasket is arranged between the shell and the rear end cover.
Further, the pipeline is a corrugated pipe.
Furthermore, the inner magnetism isolating cylinder and the outer magnetism isolating cylinder have the same height and are parallel.
Furthermore, the first outer magnetism isolating ring, the second outer magnetism isolating ring, the first inner magnetism isolating ring and the second inner magnetism isolating ring are the same in thickness.
Furthermore, the first outer magnetic isolating ring corresponds to the first inner magnetic isolating ring.
Furthermore, the second outer magnetism isolating ring corresponds to the second inner magnetism isolating ring.
The utility model discloses simple structure, through the damping motion of center magnetic conduction device, the working life of extension tool bit. When the tool bit during operation, tool bit cutting material takes place the vibration, and the tool bit vibration can simplify to the vibration of upper and lower translation, and when the tool bit casing received vibration lapse, well core magnetic device can keep the position unchangeable because of the inertia effect, and well core magnetic device is for outside casing is the opposite direction removal, and at this moment well core magnetic device can give the casing a reverse effort, and the casing just can reduce the displacement of vibration. When the vibration becomes big, the coil is electrified to generate a magnetic field, the magnetorheological fluid is solidified, the middle core magnetic conduction device exerts larger reverse acting force on the shell, and the vibration of the cutter head can be effectively controlled. When the cutter head is vibrated to move upwards, the principle of vibration reduction of the cutter head is the same as that of downward movement of the cutter head. When the cutter head swings in one direction, the central magnetic conduction device swings in the opposite direction to offset the force generated by the swinging of the cutter head, so that the aim of vibration reduction is fulfilled. When the tool bit cuts different materials, the conducting wire energizes the energized coil to make the magnetorheological fluid become viscous, and the middle core magnetic conduction device swings to consume larger force, so that a better damping effect is achieved, and the tool bit can suppress vibration of different frequencies.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is described in detail below. The embodiment of the present invention is only provided for illustrating a specific structure, and the scale of the structure is not limited by the embodiment.
Referring to fig. 1 to 2, the magnetorheological damping vibration attenuation tool bit comprises a shell 1, a rear end cover 2, a shell magnetic conduction device 3, a central core magnetic conduction device 4 and a tool bit 5, wherein the shell 1 is in threaded connection with the rear end cover 2; an annular gasket 6 is arranged between the shell 1 and the rear end cover 2; a central core magnetic conduction device 4 and a shell magnetic conduction device 3 are sequentially arranged at the center of the shell 1 outwards; the cutter head 5 is fixed at one end of the shell 1 through a screw 11; a gap is formed between the shell magnetic conduction device 3 and the core magnetic conduction device 4, and magnetorheological fluid is filled in the gap to form a magnetorheological damping channel 7.
The shell magnetic conducting device 3 comprises an outer head magnetizer 31, an outer tail magnetizer 32 and an outer middle magnetizer 33; the outer tail magnetizer 32 is positioned on the bottom of the shell 1; the outer head magnetizer 31 is located at the end of the case 1; the two ends of the outer middle magnetizer 33 are respectively connected with the outer tail magnetizer 32 and the outer head magnetizer 31.
The outer middle magnetizer 33 includes a first outer middle magnetizer 331, a second outer middle magnetizer 332, and a third outer middle magnetizer 333; a first outer magnetism isolating ring 334 is arranged between the first outer middle magnetizer 331 and the second outer middle magnetizer 332; a second outer magnetism isolating ring 335 is arranged between the second outer middle magnetizer 332 and the third outer middle magnetizer 333; the first outer magnetism isolating ring 334 and the second outer magnetism isolating ring 335 have the same thickness.
The first outer middle magnetizer 331, the second outer middle magnetizer 332 and the third outer middle magnetizer 333 are respectively provided with an outer magnetism isolating cylinder 336; the first outer middle magnetizer 331 is connected with the outer tail magnetizer 32; the third outer middle magnetizer 333 is connected to the outer end magnetizer 31.
The central core magnetic conduction device 4 comprises an inner head magnetizer 43, an inner tail magnetizer 41 and an inner middle magnetizer 42; the magnetizer at the inner middle part is in a sawtooth shape; the inner middle magnetizer 42 is respectively connected with the inner head magnetizer 43 and the inner tail magnetizer 41.
The inner middle magnetizer 42 includes a first inner middle magnetizer 421, a second inner middle magnetizer 422, and a third inner middle magnetizer 423; a first inner magnetic isolation ring 424 is arranged between the first inner middle magnetizer 421 and the second inner middle magnetizer 422; a second inner isolation magnetic ring 425 is mounted between the second inner middle magnetizer 422 and the third inner middle magnetizer 423; the first inner magnetic isolation ring 424 and the second inner magnetic isolation ring 425 have the same thickness and are parallel to each other. The first outer magnetism isolating ring 334 corresponds to the first inner magnetism isolating ring 424. The second outer magnetism isolating ring 335 corresponds to the second inner magnetism isolating ring 425.
The center of the central core magnetic conduction device 4 is provided with a corrugated pipe 8, and a lead wire 10 is communicated in the pipeline; one end of the conducting wire is connected with the conducting coil 426, and the other end is connected with an external power supply.
An inner tail magnetism isolating sheet 411 is fixed at the bottom concave part of the inner tail magnetizer 41; an inner end magnetism isolating sheet 431 is fixed at the end concave part of the inner head part magnetizer 43; the inner tail magnetizer is wrapped with an inner tail magnetism isolating cylinder 412; the inner end magnetizer is wrapped with an inner end magnetism isolating cylinder 432.
The joint of the outer tail magnetizer 32 and the corrugated pipe 8 is provided with a sealing ring 9.
Claims (7)
1. The magneto-rheological damping vibration attenuation tool bit is characterized by comprising a shell, a rear end cover, a shell magnetic conduction device, a middle core magnetic conduction device and a tool bit, wherein the shell is in threaded connection with the rear end cover; the center of the shell is provided with a central core magnetic conduction device and a shell magnetic conduction device in sequence from the center to the outside; the cutter head is fixed at one end of the shell through a screw; a gap is formed between the shell magnetic conduction device and the middle core magnetic conduction device, and magnetorheological fluid is filled in the gap to form a magnetorheological damping channel;
the shell magnetic conduction device comprises an outer head magnetizer, an outer tail magnetizer and an outer middle magnetizer; the outer tail magnetizer is positioned on the bottom of the shell; the outer head magnetizer is positioned at the end part of the shell; the two ends of the outer middle magnetizer are respectively connected with the outer tail magnetizer and the outer head magnetizer;
the outer middle magnetizer comprises a first outer middle magnetizer, a second outer middle magnetizer and a third outer middle magnetizer; a first outer magnetism isolating ring is arranged between the first outer middle magnetizer and the second outer middle magnetizer; a second outer magnetism isolating ring is arranged between the second outer middle magnetizer and the third outer middle magnetizer; the first outer middle magnetizer, the second outer middle magnetizer and the third outer middle magnetizer are respectively provided with an outer magnetism isolating cylinder; the first outer middle magnetizer is connected with the outer tail magnetizer; the third outer middle magnetizer is connected with the outer end magnetizer;
the central core magnetic conduction device comprises an inner head magnetizer, an inner tail magnetizer and an inner middle magnetizer; the magnetizer at the inner middle part is in a sawtooth shape; the inner middle magnetizer is respectively connected with the inner head magnetizer and the inner tail magnetizer;
the inner middle magnetizer comprises a first inner middle magnetizer, a second inner middle magnetizer and a third inner middle magnetizer; a first inner magnetic isolation ring is arranged between the first inner middle magnetizer and the second inner middle magnetizer; a second inner isolation magnetic ring is arranged between the second inner middle magnetizer and the third inner middle magnetizer; conductive coils are respectively wound at the concave parts of the first inner middle magnetizer, the second inner middle magnetizer and the third inner middle magnetizer, and an inner magnetism isolating cylinder is arranged outside the conductive coils; the inner magnetism isolating cylinder corresponds to the outer magnetism isolating cylinder, and a gap is arranged between the inner magnetism isolating cylinder and the outer magnetism isolating cylinder;
a pipeline is arranged in the center of the central core magnetic conduction device, and a lead is communicated in the pipeline; one end of the lead is connected with the conductive coil, and the other end of the lead is connected with an external power supply;
an inner tail magnetic-isolating sheet is fixed at the concave position at the bottom of the inner tail magnetizer; an inner end magnetism isolating sheet is fixed at the concave part of the end part of the inner head part magnetizer; the inner tail magnetizer is wrapped with an inner tail magnetism isolating cylinder; the inner end magnetizer is wrapped with an inner end magnetism isolating cylinder.
2. The magnetorheological damping vibration damping bit according to claim 1, wherein an annular gasket is arranged between the outer shell and the rear end cover.
3. The magnetorheological damping vibration damping bit according to claim 1, wherein the pipeline is a corrugated pipe.
4. The tool bit of claim 1, wherein the inner and outer magnetic isolation cylinders have the same height and are parallel to each other.
5. The magnetorheological damping vibration-damping tool bit according to claim 1, wherein the first outer magnetism isolating ring, the second outer magnetism isolating ring, the first inner magnetism isolating ring and the second inner magnetism isolating ring have the same thickness.
6. The magnetorheological damping vibration-damping tool bit as claimed in claim 1 or 5, wherein the first outer magnetism isolating ring corresponds to the first inner magnetism isolating ring.
7. The magnetorheological damping vibration-damping tool bit as claimed in claim 1 or 5, wherein the second outer magnetism isolating ring corresponds to the second inner magnetism isolating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222909988.6U CN218873773U (en) | 2022-11-02 | 2022-11-02 | Magneto-rheological damping vibration-damping cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222909988.6U CN218873773U (en) | 2022-11-02 | 2022-11-02 | Magneto-rheological damping vibration-damping cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218873773U true CN218873773U (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222909988.6U Active CN218873773U (en) | 2022-11-02 | 2022-11-02 | Magneto-rheological damping vibration-damping cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218873773U (en) |
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2022
- 2022-11-02 CN CN202222909988.6U patent/CN218873773U/en active Active
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