CN114850535A - Drill bit protection device for realizing magnetic regulation by vibration measurement - Google Patents

Drill bit protection device for realizing magnetic regulation by vibration measurement Download PDF

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Publication number
CN114850535A
CN114850535A CN202210284006.0A CN202210284006A CN114850535A CN 114850535 A CN114850535 A CN 114850535A CN 202210284006 A CN202210284006 A CN 202210284006A CN 114850535 A CN114850535 A CN 114850535A
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China
Prior art keywords
module
shaft
drill bit
electromagnetic
meshing
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CN202210284006.0A
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CN114850535B (en
Inventor
朱大伟
刘胜
孙鹏飞
张�诚
卢琨
周舒
谷顾全
张卜鑫
张烨锴
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Publication of CN114850535A publication Critical patent/CN114850535A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B11/00—Automatic or semi-automatic turning-machines incorporating equipment for performing other working procedures, e.g. slotting, milling, rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/12—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring vibration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention relates to a drill bit protection device for measuring vibration to realize magnetic regulation, wherein a drill bit is driven to rotate by a main shaft, the device comprises an electromagnetic module, a straight rod module and a case module, one end of the straight rod module is connected with the drill bit, the other end of the straight rod module is connected with the main shaft through the electromagnetic module and rotates together with the main shaft, the electromagnetic module comprises a first electromagnetic shaft with a cavity and a first electromagnetic coil arranged on the outer side of the middle part of the first electromagnetic shaft, a groove, a telescopic pin and a second electromagnetic shaft are arranged on the inner side wall of the cavity, the telescopic pin and the second electromagnetic shaft are arranged in the groove, the electromagnetic module is arranged in the case module, an energy converter, a vibration meter and a speed regulator are arranged in the case module, and the electromagnetic module is connected with the speed regulator. Compared with the prior art, the automatic protection device for the drill bit realizes automatic protection of the drill bit during the operation of the drill bit, and has the advantages of high safety and the like.

Description

Drill bit protection device for realizing magnetic regulation by vibration measurement
Technical Field
The invention relates to the field of drill bit protection, in particular to a drill bit protection device for realizing magnetic regulation by vibration measurement.
Background
In the gold worker practice or machining, drilling processing is indispensable, receives factors such as the material of processing work piece, workman's operation, drilling temperature, smear metal, heat dissipation and the stress state of drill bit, and the drilling machine is adding man-hour in the drilling, receives the influence of these factors, and the drill bit can receive the atress uneven and produce torsional resistance, and torsional resistance accumulates and can make the drill bit take place tremble the problem, and especially when processing the deep hole, the probability that the drill bit takes place deformation or rupture can greatly increased.
The traditional protective device for the drill bit is to increase the blocking resistance of the drill bit by adding a protective device such as a protective cover outside the drill bit, a connecting core shaft and an elastic component, a device for improving a chip collecting device and cutting fluid, a device for changing the stress structure of the drill bit, a device for enabling the drill bit to be more stable by adopting a drill bit clamping device and the like. However, these conventional methods do not consider the high-speed rotation of the drill bit along with the spindle during drilling, the abnormal vibration of the drill bit before damage, and the drill bit expansion and contraction speed, and do not have a prediction effect, and the reaction is not timely, so that the drill bit can still be damaged even if the drill bit is not timely retreated, or the drill bit is subjected to the torque when being blocked, so that the drill bit is broken.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a drill bit protection device for measuring vibration and realizing magnetic motion adjustment.
The purpose of the invention can be realized by the following technical scheme:
a drill bit protection device for realizing magnetic regulation by vibration measurement, wherein a drill bit is driven to rotate by a spindle and comprises an electromagnetic module, a straight rod module and a case module, one end of the straight rod module is connected with the drill bit, the other end of the straight rod module is connected with the spindle through the electromagnetic module and rotates together with the spindle, the electromagnetic module comprises a first electromagnetic shaft with a cavity and a first electromagnetic coil arranged on the outer side of the middle part of the first electromagnetic shaft, a groove, a telescopic pin and a second electromagnetic shaft are arranged on the inner side wall of the cavity, the telescopic pin and the second electromagnetic shaft are arranged in the groove, the electromagnetic module is arranged in the case module, an energy converter, a vibration meter and a speed regulator are arranged in the case module, and the electromagnetic module is connected with the speed regulator;
when the drill bit works, the telescopic pin is ejected out, so that the straight rod module cannot move in the cavity; when the drill bit pressure is too large, the transducer converts drill bit vibration signals acquired by the vibration measuring device into speed signals and transmits the speed signals to the speed regulator, the speed regulator controls the second electromagnetic shaft to suck the telescopic pin into the groove, and controls the first electromagnetic shaft to suck the straight rod module into the cavity.
Furthermore, the device also comprises an engagement module, the main shaft is connected with the electromagnetic module through the engagement module, and the engagement module breaks internal engagement when the pressure of the drill bit is too high, so that the electromagnetic module is separated from the main shaft.
Furthermore, the meshing module comprises a first meshing shaft, a second meshing shaft and a meshing cross shaft, wherein a cross key is arranged at one end of the meshing cross shaft, the second meshing shaft is connected with the main shaft, the meshing cross shaft penetrates through the first meshing shaft and meshes with the first meshing shaft and the second meshing shaft through the cross key, the other end of the meshing cross shaft is arranged in the cavity, and a fixing groove matched with the telescopic pin is formed in the side surface of the meshing cross shaft;
when the drill bit works, the telescopic pin is matched with the fixed groove to fixedly engage with the cross shaft, so that the main shaft is connected with the electromagnetic module; when the pressure of the drill bit is too high, the telescopic pin retracts into the groove, the meshing cross shaft moves towards the inside of the cavity, the cross key is separated from the second meshing shaft, and then the main shaft is separated from the electromagnetic module.
Further, the outer sides of the first engaging shaft and the second engaging shaft are provided with engaging sleeves for fixing the axial position.
Furthermore, the side face of one end, connected with the electromagnetic module, of the meshing cross shaft is provided with a plurality of convex meshing shaft strip-shaped tracks, and strip-shaped grooves clamped with the meshing shaft strip-shaped tracks are formed in the cavity and used for avoiding the meshing cross shaft from slipping.
Further, a sleeve is arranged on the outer side of the straight rod module, and a buffer spring for damping is arranged between the straight rod module and the sleeve.
Further, the side face of the straight rod module is provided with a plurality of convex straight rod module strip rails, the length of each straight rod module strip rail is the same as that of the straight rod module, and strip grooves clamped with the straight rod module strip rails are formed in the cavities and used for preventing the straight rod module from slipping.
Furthermore, a display is arranged on the case module and used for displaying the rotating speed and the vibration signal of the drill bit.
Further, the drill bit is arranged on a drill bit seat, and the drill bit seat is in threaded connection with the straight rod module.
Furthermore, one end of the straight rod module is provided with a positioning key for ensuring that the drill bit seat is arranged at the center of the straight rod module.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a device capable of protecting a drill bit according to the actual working condition of the drill bit, which converts a vibration signal into an electromagnetic signal by detecting the vibration condition of the drill bit, controls a first electromagnetic shaft to suck a straight rod module into a cavity, so that the drill bit can be retracted and contracted when the vibration amplitude is large, the drill bit is prevented from being damaged due to violent contact and is stretched out again when the vibration amplitude returns to normal, the normal work is ensured to be recovered in time, the condition of the drill bit is flexibly judged, the device has a real-time protection function, manual intervention is not needed, and the work of the drill bit is safer.
2. According to the invention, the engagement module is arranged between the straight rod module and the main shaft, when the pressure of the drill bit is overlarge, the engagement between the straight rod module and the main shaft is disconnected, so that the main shaft idles, the drill bit stops rotating, the abrasion is reduced as much as possible, and the safety is further improved.
3. The invention also comprises a display which can be used for displaying the vibration wavelength and the vibration speed of the drill bit in real time, so that the movement of the drill bit is visualized and is convenient to analyze.
Drawings
FIG. 1 is an exploded view of the bit protector of the present invention;
FIG. 2 is a schematic diagram of the above structure of the electromagnetic module of the present invention;
FIG. 3 is a schematic structural view of the connection of the electromagnetic module with the straight rod module and the engaging module;
FIG. 4 is a schematic structural view of a straight rod module;
FIG. 5 is a schematic structural diagram of an electromagnetic module;
FIG. 6 is a schematic view showing the positional relationship between the retractable pin and the second electromagnetic shaft;
fig. 7 is an external structural diagram of a chassis module;
fig. 8 is an internal cross-sectional view within a chassis module;
FIG. 9 is a schematic structural view of an engagement module;
FIG. 10 is a schematic view of the structure of the meshing cross;
FIG. 11 is a schematic view showing an assembled relationship of an engaging sleeve and a second engaging shaft;
reference numerals:
1-an electromagnetic module; 11-a cavity; 111-grooves; 112-a telescopic pin; 113-a second electromagnetic axis; 114-a bar-shaped groove; 115-a compression spring; 116-a second electromagnetic coil; 12-a first electromagnetic axis; 13-an electromagnetic coil; 2-straight rod module; 21-straight rod module strip-shaped track; 211-circular grooves; 3-a chassis module; 31-a vibration measuring device; 32-a speed regulator; 33-a display; 34-a data connection pipe; 35-a support; 36-a transducer; 4-an engagement module; 41-a first meshing shaft; 42-a second meshing shaft; 43-meshing cross-shafts; 431-a fixation groove; 432-meshing spindle-shaped rails; 44-engaging the sleeve; 5-a sleeve; 51-a buffer spring; 6-bit seat.
Detailed Description
The present embodiment will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the embodiment, and a detailed implementation manner and a specific operation process are given, but the protection scope of the embodiment is not limited to the following embodiments.
The embodiment provides a drill bit protection device for realizing magnetic regulation by vibration measurement, which is mainly used for protecting a drill bit during the rotary work of the drill bit, wherein the drill bit is driven by a main shaft to rotate during the work, and the structural schematic diagram of the device is shown in fig. 1 and comprises a drill bit seat 6, a straight rod module 2, a sleeve 5, an electromagnetic module 1, a case module 3 and an engagement module 4. As shown in fig. 2, the drill bit seat 6 is in threaded connection with the front end of the straight rod module 2, a sleeve 5 is arranged outside the straight rod module 2, and a buffer spring 51 for damping is arranged between the straight rod module 2 and the sleeve 5. As shown in fig. 3, the rear end of the straight rod module 2 is connected with the electromagnetic module 1, the electromagnetic module 1 and the case module 3 are integrally installed, the meshing module 4 is connected with the main shaft and the electromagnetic module 1, the straight rod module 2, the meshing module 4 and the drill bit can synchronously rotate with the main shaft when the meshing module 4 is meshed, and the electromagnetic module 1 can be separated from the main shaft when the meshing is disconnected.
As shown in fig. 4, the straight rod module 2 is a cylinder, two convex straight rod module strip rails 21 are arranged on the circumferential surface, the two straight rod module strip rails 21 are symmetrical and parallel to each other compared with the central axis of the straight rod module 2, the length of the straight rod module strip rail 21 is greater than or equal to the length of the telescopic drill, and the two ends of the straight rod module strip rail 21 are flush with the two ends of the straight rod module 2. Wherein a plurality of circular grooves 211 are arranged on the straight rod module strip-shaped rail 21 at equal intervals.
As shown in fig. 5, the electromagnetic module 1 may be specifically represented as a hollow cylinder, and includes a first electromagnetic shaft 12 with a cavity 11 and a first electromagnetic coil 13 disposed outside the middle of the first electromagnetic shaft 12, wherein a strip groove 114 capable of being engaged with the strip rail 21 of the straight rod module is disposed on the inner side wall of the cavity 11, so that the straight rod module 2 and the electromagnetic module 1 may be engaged with each other without sliding. A groove 111, a telescopic pin 112 and a second electromagnetic shaft 113 are arranged in the strip-shaped groove 114, the direction of the groove is perpendicular to the center of the circle of the cylinder, as shown in fig. 6, the telescopic pin 112 and the second electromagnetic shaft 113 are arranged in the groove 111, the telescopic pin 112 can slide in the groove 111, a compression spring 115 is arranged outside the telescopic pin 112, and the compression spring 115 is in a relaxed state when the drill bit works. The second electromagnetic coil 116 is sleeved outside the second electromagnetic shaft 113.
As shown in fig. 7 and 8, the electromagnetic module 1 is disposed in the cavity of the chassis module 3 such that the electromagnetic module 1 is free to rotate without axial movement. On the other side of the chassis module 3, a transducer 36, a vibration meter 31, a speed regulator 32, a data connection pipe 34 and a support 35 are arranged, and the vibration meter 31 and the speed regulator 32 are mounted on the support 35 through bolts and buckles; a data connection 34 connects the vibration meter 31 to a speed regulator 32 and a display 33 arranged on the surface of the cabinet, respectively, and the vibration amplitude and frequency variation are fed back to the display 33 in the form of image wavelength, so that the vibration signal is visualized. When the drill bit works, the vibration signal fluctuates up and down on a horizontal line, and when the drill bit is abnormal, the fluctuation signal has a peak value. The speed regulator 32 is connected to the electromagnetic module 1, so that the speed regulator 32 regulates the current and voltage of the electromagnetic module 1 according to the vibration variation signal from the vibration detector 31, and controls the first electromagnetic shaft 12 and the second electromagnetic shaft 113 to operate.
As shown in fig. 9 and 10, the meshing module 4 includes a first meshing shaft 41, a second meshing shaft 42 and a meshing cross shaft 43, one end of the meshing cross shaft 43 is a cross key, the second meshing shaft 42 is connected with the main shaft, the meshing cross shaft 43 penetrates through the first meshing shaft 41 and meshes with the first meshing shaft 41 and the second meshing shaft 42 through the cross key, the other end of the meshing cross shaft 41 is arranged in the cavity 11, the side surface of the meshing cross shaft 43 is provided with a plurality of convex meshing shaft strip-shaped tracks 432 matched with the strip-shaped grooves 111, and fixing grooves 431 matched with the telescopic pins 112 are also arranged on the side surface.
The first engaging shaft 41 and the second engaging shaft 42 are both cylindrical structures, a hollow cylindrical hole and a cross-shaped key groove communicated with the hollow cylindrical hole are formed in the first engaging shaft 41 and used for placing an engaging cross shaft 43, the engaging cross shaft 43 can slide in the first engaging shaft 41 along the axial direction, the hollow cylindrical hole is matched with a shaft of the engaging cross shaft 43, the cross-shaped key groove is positioned on one end face of the first engaging shaft 41 and matched with a cross key on the engaging cross shaft 43, the cross-shaped key groove is arranged on one end face of the second engaging shaft 42 and used for being matched with the cross key on the engaging cross shaft 43, and a hole is formed in the other end face of the second engaging shaft 42 and used for connecting a main shaft.
As shown in fig. 11, the outside of the first engaging shaft 41 and the second engaging shaft 42 is provided with an engaging sleeve 44 for fixing the axial position.
In this embodiment, the sleeve 5 is an integral member formed by a hollow cylinder with a smooth inner wall and a disc-shaped base located at one end thereof, a plurality of threaded holes are symmetrically distributed on the disc-shaped base, the sleeve 5 is detachably connected to the chassis module 3 through bolts, nuts and washers, and a through hole is formed in the center of the disc-shaped base. The straight rod module 2 can pass through a through hole on the disc-shaped base to move along the axial direction, one end of the buffer spring 51 is fixedly connected with the end face of the disc-shaped base, and the other end of the buffer spring is fixedly connected with the other end face of the drill bit seat 6. The buffer spring 51 is a helical spring bearing axial pressure, and a buffer rubber pad is arranged between the helical pitches for effectively reducing axial force and vibration of the drill bit in the expansion and contraction process of the drill bit
In this embodiment, the drill bit seat 6 is a cylinder, the internal thread hole is opened to the one end of drill bit seat 6, be used for connecting the drill bit, the other end of drill bit seat 6 forms the circular recess rather than the central point coincidence of terminal surface towards interior, the central point of circular recess puts and is equipped with 1 screw hole and 2 parallel keys, 2 parallel keys compare in the screw hole symmetry, the one end of straight-bar module 2 forms a circular boss rather than the central point coincidence of terminal surface towards the evagination, a screw hole and the keyway that is used for connecting 2 parallel keys are established to the central point of circular boss, circular boss and circular recess pass through screw hole and parallel key and cooperate, make drill bit seat 6 and straight-bar module 2 connect inseparabler.
In this embodiment, the engaging sleeve 44 is composed of a hollow cylinder with a bottom plate and a smooth inner wall and a detachable disc-shaped base located at one end thereof, the disc-shaped base is an integrated member composed of a disc with a through hole at the center and a hollow cylinder located at one side and having an inner diameter larger than the diameter of the through hole, an external thread is provided on the hollow cylinder of the disc-shaped base to be matched with an internal thread in the hollow cylinder of the engaging sleeve 44 to detachably connect the disc-shaped base and the engaging sleeve 44, the disc-shaped base and the bottom plate are located at both ends of the hollow cylinder on the engaging sleeve 44, the disc-shaped base is used for being connected with the chassis module 3, and a plurality of threaded through holes are symmetrically distributed on the disc-shaped base, the engaging sleeve 44 is mounted on the chassis module 3 by bolts, nuts and washers, and the bottom plate is provided with through holes.
The workflow of this embodiment is as follows:
the vibration measuring device 31 monitors the vibration amplitude and frequency of the drill bit and the spindle in real time, the transducer 36 and the data connecting pipe 34 are used for converting vibration signals into speed signals to be given to the speed regulator 32, the speed regulator 32 gives electromagnetic signals corresponding to the speed signals to the electromagnetic module 1, and meanwhile, the first electromagnetic shaft 12 and the second electromagnetic shaft 113 are controlled.
For the straight rod module 2, under the normal working condition of the drill, the buffer spring 51 is in a non-stretched and non-compressed state, and at this time, the telescopic pin 112 passes through the groove 111 in the strip-shaped groove 114 and is matched with the circular groove 211 on the straight rod module 2 under the elastic force action of the compression spring 115, so that the position of the straight rod module 2 is fixed in the cavity 11 and cannot move axially; when the drill bit is abnormal, the telescopic pin 112 receives magnetic force generated from the second electromagnetic shaft 113, the telescopic pin 112 overcomes the elastic force of the compression spring 115 to move towards the second electromagnetic shaft 113 under the action of electromagnetic attraction, so that the telescopic pin 112 exits from the groove 111 in the strip-shaped groove 114, at the moment, the axial movement of the straight rod module 2 is not fixed any more and can move axially along the cavity 11, meanwhile, the first electromagnetic shaft 12 attracts the straight rod module 2 to move axially towards the inside of the cavity 11, so that the drill bit retracts to avoid damage, the buffer spring 51 receives axial force from the drill bit seat 6, and the buffer spring 51 starts to compress and store energy because the sleeve 5 is fixed on the chassis module 3; when the normal working state is recovered, the buffer spring 51 releases energy to start recovering the free state before compression, so that the drill bit seat 6 axially moves towards the direction of the processed workpiece; when the vibration is abnormal, the drill bit seat 6 can stretch out and draw back in the sleeve 5, and the buffer spring 51 enables the drill bit to keep the original precision in the moving process and lightens the axial force and the torque, thereby playing the role of protecting the drill bit.
For the meshing module 4, during normal operation, the telescopic pin 112 passes through the groove 111 in the strip-shaped groove 114 and is matched with the circular groove 432 on the meshing cross shaft 43 under the elastic force of the compression spring 115, so that the axial movement of the meshing cross shaft is fixed, and under the connection of the meshing cross shaft 43, the first meshing shaft 41 and the second meshing shaft 42 rotate along with the main shaft at the same time and drive the electromagnetic module 1 to rotate together; when an abnormality occurs, the telescopic pin 112 is subjected to magnetic force generated by the second electromagnetic shaft 113, the telescopic pin 112 overcomes the elastic force of the compression spring 115 to move towards the direction of the second electromagnetic shaft 113 under the action of electromagnetic attraction, at the moment, the axial movement of the meshing cross shaft is not fixed any more, and the meshing cross shaft can move axially along the cavity 11, meanwhile, the meshing cross shaft 43 moves towards the direction of the main shaft under the repulsion action of the magnetic force until the meshing shaft strip-shaped track 432 on the meshing cross shaft 43 is completely separated from the strip-shaped groove 114 on the electromagnetic module 1, the electromagnetic module 1 does not rotate along with the main shaft any more, and the drill bit does not rotate along with the main shaft any more, so that the function of protecting the drill bit is achieved.
Through the cooperation of the straight rod module 2, the electromagnetic module 1 and the meshing module 4, the rotation of the drill bit can be removed while the cutter is actively withdrawn, and the drill bit is flexibly and timely protected.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a survey vibration and realize drill bit protection device of magnetic regulation, the drill bit is rotated by the main shaft drive, a serial communication port, the device includes electromagnetic module (1), straight-bar module (2) and quick-witted case module (3), the drill bit is connected to the one end of straight-bar module (2), and the other end passes through electromagnetic module (1) to be connected the main shaft and rotates jointly with the main shaft, electromagnetic module (1) is including first electromagnetic shaft (12) that have cavity (11) and first solenoid (13) of setting in first electromagnetic shaft (12) middle part outside, be provided with recess (111) on the inside wall of cavity (11), flexible round pin (112) and second electromagnetic shaft (113) set up in recess (111), electromagnetic module (1) sets up in quick-witted case module (3), be equipped with transducer (36) in quick-witted case module (3), The electromagnetic module (1) is connected with the speed regulator (32);
when the drill bit works, the telescopic pin (112) is ejected out, so that the straight rod module (2) cannot move in the cavity (11); when the pressure of the drill bit is overlarge, the transducer (36) converts a drill bit vibration signal acquired by the vibration measuring device (31) into a speed signal and transmits the speed signal to the speed regulator (32), the speed regulator (32) controls the second electromagnetic shaft (113) to suck the telescopic pin (112) into the groove (111), and controls the first electromagnetic shaft (12) to suck the straight rod module (2) into the cavity (11).
2. A vibration measuring and magnetomotive adjusting drill bit protection device according to claim 1, further comprising an engagement module (4), wherein the spindle is connected with the electromagnetic module (1) through the engagement module (4), and the engagement module (4) breaks the internal engagement when the drill bit pressure is too high, so that the electromagnetic module (1) is separated from the spindle.
3. The drill bit protection device for measuring vibration and realizing magnetomotive adjustment according to claim 2, wherein the meshing module (4) comprises a first meshing shaft (41), a second meshing shaft (42) and a meshing cross shaft (43), one end of the meshing cross shaft (43) is a cross key, the second meshing shaft (42) is connected with a main shaft, the meshing cross shaft (43) penetrates through the first meshing shaft (41) and meshes the first meshing shaft (41) and the second meshing shaft (42) through the cross key, the other end of the meshing cross shaft (41) is arranged in the cavity (11), and a fixing groove (431) matched with the telescopic pin (112) is arranged on the side surface of the meshing cross shaft (43);
when the drill bit works, the telescopic pin (112) is matched with the fixing groove (431) to fixedly engage with the cross shaft (43), so that the main shaft is connected with the electromagnetic module (1); when the pressure of the drill bit is too high, the telescopic pin (112) retracts into the groove (111), the meshing cross shaft (43) moves towards the inside of the cavity (11), the cross key is separated from the second meshing shaft (43), and then the main shaft is separated from the electromagnetic module (1).
4. A vibration measuring and magnetomotive adjusting bit protector according to claim 3, wherein the first and second meshing shafts (41, 42) are provided with meshing sleeves (44) on the outside for fixing the axial position.
5. The drill bit protection device for measuring vibration and realizing magnetomotive adjustment according to claim 3, wherein a plurality of convex engaging shaft strip-shaped tracks (432) are arranged on the side surface of one end of the engaging cross shaft (43) connected with the electromagnetic module (1), and strip-shaped grooves (111) clamped with the engaging shaft strip-shaped tracks (432) are arranged in the cavity (11) and are used for avoiding the engaging cross shaft (43) from slipping.
6. The drill bit protection device for measuring vibration and realizing magnetic motion adjustment according to claim 1 is characterized in that a sleeve (5) is arranged outside the straight rod module (2), and a buffer spring (51) for damping is arranged between the straight rod module (2) and the sleeve (5).
7. The drill bit protection device for measuring vibration and realizing magnetomotive adjustment according to claim 1, wherein a plurality of convex straight rod module strip rails (21) are arranged on the side surface of the straight rod module (2), the length of each straight rod module strip rail (21) is the same as that of the straight rod module (2), and a strip groove (114) clamped with the straight rod module strip rails (21) is arranged in the cavity (11) and used for avoiding the slipping of the straight rod module (2).
8. The drill bit protection device for measuring vibration and realizing magnetic motion regulation according to claim 1 is characterized in that a display (33) is arranged on the case module (3) and is used for displaying the rotating speed and the vibration signal of the drill bit.
9. The bit protector for measuring vibration and realizing magnetic motion regulation according to claim 1 is characterized in that the bit is arranged on a bit seat (6), and the bit seat (6) is in threaded connection with the straight rod module (2).
10. The drill bit protection device for measuring vibration and realizing magnetic motion adjustment according to claim 9 is characterized in that one end of the straight rod module (2) is provided with a positioning key for ensuring that the drill bit seat (6) is arranged at the center of the straight rod module (2).
CN202210284006.0A 2022-03-21 2022-03-21 Drill bit protection device for realizing magnetomotive adjustment by measuring vibration Active CN114850535B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116141081A (en) * 2023-04-04 2023-05-23 山东江晟机械科技股份有限公司 Vibration measuring equipment for fault detection of numerical control machine tool

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