TWI513542B - Anti-broken shaft type of processing means - Google Patents

Description

Anti-break shaft processing device

The invention relates to an anti-break shaft processing device, in particular to a magnetic coupling force as a transmission between two rotating shafts, and a monitoring unit monitors the rotation speed of the driving shaft, and sends a control signal to stop the operation of the driving shaft to prevent Broken shaft during machining.

The tool machine industry is a hub industry in a developing country. The relationship between the machine tool industry and the manufacturing industry is inseparable. The development of machine tools has become one of the important factors in the production efficiency and product refinement of the manufacturing industry. At present, the machine tool goes to the development direction of high precision, high efficiency, high reliability, multiplexed compounding, etc., the general machine tool will undergo chattering when cutting, and the occurrence of chattering is mainly the spontaneous vibration related to the cutting conditions. The amplitude of the flutter is much larger than the normal vibration of the machine tool, which can easily lead to the tool not being able to accurately cut the surface of the workpiece, causing the wave surface and large roughness of the workpiece surface, and accelerating the wear of the tool.

Furthermore, in the working environment of the chemical industry, there are dangerous substances such as poisonous gas, harmful dust and corrosive solvents. If the machine tool is operated in such a dangerous environment, it is easy to cause sparks due to contact friction between the shaft and the shaft, and then occur. Unexpected casualties or damage to the machine; in addition, some operating environments must be dust-free, sterile, vacuum, etc. The machine tool often has dust, iron or plastic cutting during the cutting process, if it is in operation. The above-mentioned substances inadvertently fly into the shaft member of the machine tool, resulting in an increase in the resistance, causing the tool machining shaft to have excessive torque and causing damage to the shaft and the cutter, such as the impact of the drill bit breaking in the workpiece during deep hole machining.

Therefore, in order to further effectively solve the conventional machining machine, the chattering phenomenon occurs when the cutting machine is processed, which causes the tool to not accurately cut off the surface of the workpiece, causing the wave surface of the workpiece surface to be large and large, and accelerating the wear of the tool. And the tool machining shaft torque is too large, resulting in broken shaft, tool damage, and the bit breaks in the workpiece during deep hole machining. In view of this, the inventors have made efforts to study and propose an anti-break shaft processing device, which comprises: a body; a power unit for outputting an original power; and a mobile unit disposed on the base, the movement The unit includes a slide rail and a platform that slides on the slide rail; a drive shaft unit is disposed on the platform and has a drive shaft, one end of the drive shaft is coupled to a first disk, and the other end is directly or indirectly coupled to the platform. a power unit, the first magnetic disk is provided with a first N magnetic pole magnet and a first S magnetic pole magnet; and a passive shaft unit is disposed on the base body and has a passive shaft, and one end of the passive shaft is a processing end, the other end of the passive shaft is provided with a second magnetic disk, the second magnetic disk is spaced apart from the first magnetic disk by a magnetic distance, and the second magnetic disk is provided with an annular staggered arrangement of a second S magnetic pole magnet and a second N magnetic pole magnet, wherein the second S magnetic pole magnet and the second N magnetic pole system are arranged opposite to the first N magnetic pole magnet and the first S magnetic pole magnet, so that between the first magnetic disk and the second magnetic disk a magnetic coupling force is transmitted; a monitoring unit is disposed on the driving shaft unit for monitoring the rotation speed of the driving shaft; and adjusting the magnetic working distance by the sliding of the platform to change the magnetic coupling force The magnetic power of the power unit is transmitted to the second magnetic disk via the first magnetic disk, and the processing end of the passive shaft outputs a machining power. When a machining resistance is greater than the machining power, the machining force is greater than the machining power. The processing resistance causes a jump, a slip between the second disk and the first disk, and causes the The rotation speed of the driving shaft is reduced and the monitoring unit receives the message that the driving shaft speed is reduced, and sends a control signal to stop the operation of the driving shaft to prevent the shaft from being broken during the machining.

Further, within the magnetic interaction distance, the first S magnetic pole magnet magnetically attracts the second N magnetic pole, and the first N magnetic pole magnet magnetically attracts the second S magnetic pole magnet to obtain a magnetic coupling force.

Further, a mark is marked on the platform or the slide rail to indicate the magnetic interaction distance.

Further, the monitoring unit includes a plurality of shutters spaced apart in the radial direction of the driving shaft, and an optical counter is disposed on the rotating path of the plurality of shutters, and the number of passes of the shutter is calculated by the optical counter. Monitor the speed of the drive shaft.

Another object of the present invention is an anti-break shaft processing apparatus, comprising: a body; a power unit for outputting an original power; and a moving unit disposed on the base, the moving unit including a slide a rail and a platform that slides on the slide rail; a drive shaft unit is disposed on the platform and has a drive shaft, one end of the drive shaft is coupled to an inner rotor, and the other end is directly or indirectly coupled to the power unit. The rotor surface is provided with at least one first N magnetic pole magnet and a first S magnetic pole magnet; and a passive shaft unit is disposed on the base body and has a passive shaft, and one end of the passive shaft is a machining end. The other end of the passive shaft is provided with an outer rotor, the outer rotor is radially spaced from the inner rotor by a magnetic distance, and the outer rotor has a receiving space corresponding to the inner rotor, and Between the outer rotor and the second N pole magnet System and the N pole of the first magnet, the first magnet system S pole faces are arranged so that the inner rotor And the outer rotor is driven by a magnetic coupling force; the sliding of the platform causes the inner rotor to extend into the receiving space of the outer rotor, and the first N magnetic pole magnet and the first S magnetic pole system are adjusted Corresponding to the second S magnetic pole magnet and the first N magnetic pole magnet, the magnetic attraction amount is changed to change the magnetic coupling force, and the original power of the power unit is transmitted to the outer rotor via the inner rotor. The machining end of the passive shaft outputs a machining power. When a machining resistance is greater than the machining power, the machining resistance causes a jump, a slip between the outer rotor and the inner rotor, and the rotation speed of the driving shaft is pinned. In addition, the monitoring unit receives the message that the driving shaft speed is reduced, and sends a control signal to stop the operation of the driving shaft to prevent the shaft from being broken during the machining.

Further, within the magnetic interaction distance, the first S magnetic pole magnet magnetically attracts the second N magnetic pole, and the first N magnetic pole magnet magnetically attracts the second S magnetic pole magnet to obtain the magnetic coupling force.

Further, the monitoring unit includes a plurality of shutters spaced apart in the radial direction of the driving shaft, and an optical counter is disposed on the rotating path of the plurality of shutters, and the number of passes of the shutter is calculated by the optical counter. Monitor the speed of the drive shaft.

The effect of the invention is:

1. The invention dynamically transmits more than 90% of the torque in a non-contact manner. When the maximum machining torque exceeds the transmission torque of the processing device, only the slip between the magnetic poles is caused, and the precision equipment can be protected without adverse effects on the structure.

2. In the process of synchronously transmitting torque, the invention can absorb a certain degree of axial or angular displacement error and save the centering time.

3. The invention is dynamically transmitted in a non-contact manner, so there is no contact or collision, so the vibration is small, the chattering can be reduced, and the shaft centering time can be eliminated.

4. The invention is operated by magnetic force as a synchronous two-axis, and the transmission process is quiet. It can also be processed and positioned in a closed vacuum space.

5. During the transmission process of the invention, there is no spark generated by rapid friction of the mechanism, and the utility model can be used in a working environment with dangers such as toxic gas, harmful dust and corrosive solvent to improve safety.

6. The invention has no wear and no friction loss.

7. The invention has simple structure, low manufacturing cost and convenient maintenance.

8. The present invention achieves a fixed power unit through the mobile unit, but provides a different magnitude of torque output variation for the other shaft.

9. The present invention provides a method and apparatus for progressive rotation.

(1) ‧ ‧ ‧ body

(2) ‧‧‧Drive shaft unit

(21)‧‧‧Active shaft

(22)‧‧‧First disk

(22A)‧‧‧First N magnetic pole magnet

(22B)‧‧‧First S magnetic pole magnet

(23)‧‧‧Monitoring unit

(23A) ‧ ‧ s

(23B)‧‧‧Optical counter

(24) ‧‧‧ mark

(3)‧‧‧Passive axis unit

(31)‧‧‧Passive axis

(32)‧‧‧Processing end

(33)‧‧‧Second disk

(33A)‧‧‧Second S magnetic pole magnet

(33B)‧‧‧Second N magnetic pole magnet

(4) ‧‧‧Mobile units

(41)‧‧‧Slide rails

(42) ‧‧‧ platform

(43)‧‧‧Control guide screw

(5) ‧‧‧Power unit

(51)‧‧‧Power supply

(1A) ‧ ‧ ‧ body

(2A)‧‧‧Active shaft unit

(21A)‧‧‧Active shaft

(22A) ‧‧‧ Inner rotor

(221A)‧‧‧First N magnetic pole magnet

(222A)‧‧‧First S magnetic pole magnet

(23A)‧‧‧Monitoring unit

(231A) ‧‧‧Slide

(231A)‧‧‧ Optical Counter

(3A)‧‧‧Passive Axis Unit

(31A)‧‧‧Passive axis

(32A)‧‧‧Processing end

(33A)‧‧‧External rotor

(331A)‧‧‧Second S magnetic pole magnet

(332A)‧‧‧Second N magnetic pole magnet

(4A)‧‧‧Mobile units

(41A)‧‧‧Slide rails

(42A) ‧‧‧ Platform

(43A)‧‧‧Control guide screw

(5A)‧‧‧Power unit

(51A)‧‧‧Power supply

(6A) ‧‧‧Magnetic distance

[First figure] is a schematic diagram of a three-dimensional left side structure of the present invention.

[Second figure] is a schematic view of the stereo right side structure of the present invention.

[Third A] is a schematic plan view of the first disk of the present invention.

[Third B] is a schematic plan view of a second magnetic disk of the present invention.

[Fourth figure] is a schematic diagram of the unactuated operation of the first embodiment of the present invention.

[Fifth Figure] is a schematic view of the first embodiment of the present invention.

[Sixth] is a schematic view of a three-dimensional left side structure according to a second embodiment of the present invention.

[Seventh figure] is a schematic view of a three-dimensional left side configuration of a second embodiment of the present invention.

[Embodiment 8] is a cross-sectional view of the outer rotor and the inner rotor in a second embodiment of the present invention.

Referring to the first embodiment and the second figure, the present invention provides an anti-break shaft processing device, which can be drilled, turned, etc. by non-contact magnetic force by adjusting two magnetic members to attract each other. . The invention has simple structure and no adverse effect on the structure, can protect the precision equipment, and is very suitable for the general machine tool cutting process.

The invention provides an anti-break shaft processing device, comprising a body (1), a power unit (5), a drive shaft unit (2), a mobile unit (4) and a passive shaft unit (3) .

The moving unit (4) is fixed on the base (1), and the moving unit (4) is provided with a sliding rail (41) and a platform (42) sliding on the sliding rail (41), the platform (42) The driving shaft unit (2) is coupled to the relative position of the sliding rail (41) by connecting one of the sliding rails (41) to control the guiding screw (43).

The driving shaft unit (2) has a driving shaft (21), one end of the driving shaft (21) is coupled with a first magnetic disk (22), and the other end directly or indirectly connects the power unit (5), the power unit (5) Connecting a power supply (51) for outputting a raw power to drive the drive shaft (21) to rotate, wherein the power unit (5) can be a motor, an engine, etc.; as shown in FIG. 3A, the first The magnetic disk (22) is provided with a first N magnetic pole magnet (22A) and a first S magnetic pole magnet (22B) which are alternately arranged in a ring shape. And a monitoring unit (23) is disposed on the driving shaft unit (2), the monitoring unit (23) includes a plurality of shutters (23A) spaced radially apart from the driving shaft (21), and the plurality of gates (23A) are disposed at the plurality of gates An optical counter (23B) is provided on the rotation path of the sheet (23A), and the number of passes of the shutter (23A) is calculated by the optical counter (23B) to monitor the rotation speed of the driving shaft (21).

The passive shaft unit (3) is fixed to the base body (1) and includes a passive shaft (31). One end of the passive shaft (31) is a machining end (32), and the passive shaft (31) The other end is provided with a second magnetic disk (33), the second magnetic disk (33) has a magnetic distance from the first magnetic disk, wherein two marks (24) are marked on the platform (42), two The distance between the marks (24) is the aforementioned magnetic interaction distance; please refer to the third B picture, the second magnetic disk (33) is provided with a second staggered magnetic pole (33A) and one a second N magnetic pole magnet (33B), wherein the second S magnetic pole magnet (33A) and the second N magnetic pole magnet (33B) are coupled to the first N magnetic pole magnet (22A) and the first S magnetic pole magnet (22B) The phases are aligned to drive the first disk (22) and the second disk (33) by a magnetic coupling force.

When the user operates, please refer to the fourth and fifth figures, when the power unit (5) (such as a motor or an engine) pulls the driving shaft (21) to operate, thereby driving the first disk (22) to rotate. And sliding the first magnetic disk (22) close to the magnetic interaction distance between the two marks (24) through the control guide screw (43), and when the first magnetic disk (22) is within the magnetic interaction distance, The magnetic coupling force of the first disk (22) and the second disk (33) attract each other to achieve synchronous operation, and the second disk (33) drives the processing end with the passive shaft (31). (32) For the rotary machining, in the embodiment, the machining end (32) is a drilling knife. Moreover, the mobile unit (4) adjusts the distance between the driving shaft (21) and the passive shaft (31), so that the processing end (32) outputs different torque, the first disk (22) and the second disk. (33) The closer the magnetic interaction distance of the phase separation distance is, the faster the rotation speed of the driving shaft (21) and the passive shaft (31); otherwise, the magnetic distance between the first magnetic disk (22) and the second magnetic disk The farther the action distance is, the lower the rotational speed of the drive shaft and the passive shaft (31) Low; the original power of the power unit (5) is transmitted to the second disk (33) via the first disk (22), and the machining resistance causes the second disk (33) when a machining resistance is greater than the machining power A jump and a slip are generated between the first disk (22) and the rotation speed of the drive shaft (21) is reduced, so that the optical counter (23B) detects the number of passes of the shutter (23A). Decreasing, the message is transmitted to a control terminal, and the control terminal sends a control signal to the power unit (5). When the power unit (5) receives the control signal, the operation of the drive shaft (21) is stopped. Prevents breakage during machining.

A second embodiment of the present invention is shown in the sixth and seventh embodiments. The second embodiment includes a body (1A), a power unit (5A), a drive shaft unit (2A), and a mobile unit (4A). ) and a passive axis unit (3A).

The moving unit (4A) is fixed on the base (1A), and the moving unit (4A) is provided with a sliding rail (41A) and a platform (42A) sliding on the sliding rail (41A), the platform (42A) The above-mentioned driving shaft unit (2A) is coupled to the relative position of the sliding rail (41A) by connecting one of the sliding rails (41A) to control the guiding screw (43A).

The drive shaft unit (2A) has a drive shaft (21A), one end of the drive shaft (21A) is coupled to an inner rotor (22A), and the other end is directly or indirectly coupled to the power unit (5A). The power unit (5A) Connected to a power supply (51A) for outputting a raw power to drive the drive shaft (21A) to rotate, wherein the power unit (5A) can be a motor, an engine, etc.; wherein the inner rotor (22A) surface is spaced apart There are three sets of first N magnetic pole magnets (221A) and first S magnetic pole magnets (222A) which are alternately arranged in a ring shape. Further, a monitoring unit (23A) is disposed on the driving shaft unit (2A), and the monitoring unit (23A) includes a diameter in the driving shaft (21A). a plurality of shutters (231A) are disposed at intervals, and an optical counter (232A) is disposed on a rotation path of the plurality of shutters (231A), and the shutter (231A) is calculated by the optical counter (232A) The rotational speed of the drive shaft (21A) is monitored by the number of passes.

The passive shaft unit (3A) is fixed to the base body (1A) and includes a passive shaft (31A). One end of the passive shaft (31A) is a machining end (32A), and the passive shaft (31A) The other end is provided with an outer rotor (33A) which is radially apart from the inner rotor (22A) by a magnetic distance (6A), and the outer rotor has a through space (333A). The receiving space (333A) is adapted to extend into the inner rotor (22A), and is further disposed on the inner side of the outer rotor (33A) with three sets of annular staggered ones of the second S magnetic pole magnets (331A) and a second N. a magnetic pole magnet (332A), the second S magnetic pole magnet (331A) and the second N magnetic pole magnet (332A) and the first N magnetic pole magnet (221A), the first S in the magnetic working distance (6A) The pole magnets (222A) are arranged to face each other, the first S pole magnet (222A) magnetically attracts the second N pole (332A), and the first N pole magnet (221A) magnetically attracts the second S pole magnet (331A) ) to obtain a magnetic coupling force.

Referring to the sixth and eighth figures, the user slides the platform (42A) to extend the inner rotor (22A) into the receiving space (331A) of the outer rotor (33A). The inner rotor (22A) The first N magnetic pole magnet (221A) and the first S magnetic pole magnet (222A) face the second S magnetic pole magnet (331A) and the second N magnetic pole magnet (332A) of the outer rotor (33A), The two attract each other to obtain the magnetic coupling force, and the two are synchronized, and when the user continues to slide the platform (42A), the first N magnetic pole magnet (221A) and the first S magnetic pole (222A) are adjusted. Above The two S magnetic pole magnets (331A) and the first N magnetic pole magnets (332A) are oppositely opposed to each other, thereby changing the magnitude of the magnetic coupling force, thereby controlling the speed of the driving shaft (31A); and the outer rotor ( 33A) The machining end (32A) is further driven by the driven shaft (31A) for rotation processing. In the embodiment, the machining end (32A) is a drilling knife. The original power of the power unit (5A) is transmitted to the outer rotor (33A) via the inner rotor (22A), and the machining end (32A) of the passive shaft (31A) outputs a machining power when a machining resistance is greater than the When the power is processed, the machining resistance causes a jump, a slip between the outer rotor (33A) and the inner rotor (22A), and the rotation speed of the drive shaft (31A) is pinned and reduced, and the monitoring unit (23) Receiving the message that the driving shaft (31A) is decelerating, a control signal is issued to stop the operation of the driving shaft (31A) to prevent the shaft from being broken during the machining.

The invention adopts non-contact magnetic force transmission, and absorbs the vibration displacement error generated by the machine during the power transmission process, and the vibration is small, and the axial time can be omitted, and the load protection characteristic can also be achieved. When the torque is too large, It only slips between the magnetic poles and has no adverse effects on the structure to protect the precision equipment. The above-mentioned non-contact magnetic force transmission effectively reduces the vibration of the conventional machine tool, thereby improving the surface precision of the workpiece and saving the cost of tool wear, and also enabling the power unit to be processed into the machine tool during the vacuum semiconductor process. Positioning.

In view of the foregoing description of the embodiments, the operation and the use of the present invention and the effects of the present invention are fully understood, but the above described embodiments are merely preferred embodiments of the present invention, and the invention may not be limited thereto. </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

(1) ‧ ‧ ‧ body

(2) ‧‧‧Drive shaft unit

(21)‧‧‧Active shaft

(22)‧‧‧First disk

(22A)‧‧‧First N magnetic pole magnet

(22B)‧‧‧First S magnetic pole magnet

(23)‧‧‧Monitoring unit

(23A) ‧ ‧ s

(23B)‧‧‧Optical counter

(24) ‧‧‧ mark

(3)‧‧‧Passive axis unit

(31)‧‧‧Passive axis

(32)‧‧‧Processing end

(33)‧‧‧Second disk

(4) ‧‧‧Mobile units

(41)‧‧‧Slide rails

(42) ‧‧‧ platform

(43)‧‧‧Control guide screw

(5) ‧‧‧Power unit

(51)‧‧‧Power supply

Claims (5)

An anti-breaking shaft processing device includes: a body; a power unit for outputting a raw power; a moving unit disposed on the base, the moving unit including a slide rail and sliding on the slide rail a drive shaft unit is disposed on the platform and has a drive shaft a first N magnetic pole magnet and a first S magnetic pole magnet; a passive shaft unit disposed on the base body and having a passive shaft, one end of the passive shaft being a machining end, and the other end of the passive shaft being disposed a second magnetic disk having a magnetic distance from the first magnetic disk, and the second magnetic disk is provided with an annular staggered arrangement of a second S magnetic pole magnet and a second N magnetic pole magnet, wherein the second magnetic disk The S magnetic pole magnet and the second N magnetic pole system are arranged opposite to the first N magnetic pole magnet and the first S magnetic pole magnet, and the first S magnetic pole magnet is magnetically attracted to the second N magnetic pole, and the first N Magnetic pole magnet The second S-pole magnet is configured to transmit the first disk and the second disk by a magnetic coupling force; a monitoring unit is disposed on the driving shaft unit for monitoring the rotation speed of the driving shaft; Sliding of the platform, adjusting the magnitude of the magnetic interaction distance to change the magnetic coupling force, the closer the magnetic interaction distance of the first magnetic disk and the second magnetic disk are, the more the rotational speed of the active shaft and the passive shaft On the other hand, the farther the magnetic interaction distance between the first disk and the second disk is, the rotation speed of the driving shaft and the passive shaft are relatively decreased; and the original power unit is in the magnetic working distance. The power is transmitted to the second magnetic disk via the first magnetic disk, and the processing end of the passive shaft outputs a machining power. When a machining resistance is greater than the machining power, the machining resistance generates between the second magnetic disk and the first magnetic disk. Jumping, slipping, and reducing the speed of the drive shaft Low, the monitoring unit receives the message that the driving shaft speed is reduced, and sends a control signal to stop the operation of the driving shaft to prevent the shaft from being broken during the machining. The anti-break shaft machining device of claim 1, wherein the platform or the rail is marked with a mark to indicate the magnetic interaction distance. The anti-break shaft processing device of claim 1, wherein the monitoring unit comprises a plurality of shutters spaced apart in a radial direction of the driving shaft, and one of the optical paths is disposed on the rotating path of the plurality of shutters. The counter monitors the rotation speed of the driving shaft by calculating the number of passes of the shutter by the optical counter. An anti-breaking shaft processing device includes: a body; a power unit for outputting a raw power; a moving unit disposed on the base, the moving unit including a slide rail and sliding on the slide rail One of the upper platforms; a drive shaft unit is disposed on the platform and has a drive shaft, one end of the drive shaft is coupled to an inner rotor, and the other end is directly or indirectly coupled to the power unit, and the inner rotor surface is provided with at least one ring a first N pole magnet and a first S pole magnet; a passive shaft unit disposed on the base body and having a passive shaft, one end of the passive shaft being a machining end, and the other end of the passive shaft An outer rotor is disposed, the outer rotor and the inner rotor are radially apart from each other by a magnetic distance, and the outer rotor has a through space corresponding to the inner rotor and disposed at least inside the outer rotor. a second S-pole magnet and a second N-pole magnet, wherein the second S-pole magnet and the second N-pole and the first N-pole are within the magnetic interaction distance The magnet and the first S magnetic pole magnet are arranged to face each other, and the first S magnetic pole magnet magnetically attracts the second N magnetic pole, and the first N magnetic pole magnet magnetically attracts the second S magnetic pole magnet to make the inner rotor and the inner rotor The outer rotors are driven by a magnetic coupling force; The inner rotor extends into the receiving space of the outer rotor by the sliding of the platform, and the first N magnetic pole magnet and the first S magnetic pole body are aligned with the second S magnetic pole magnet and the first N magnetic pole magnet. The magnetic attraction is used to change the magnetic coupling force. Within the magnetic interaction distance, the original power of the power unit is transmitted to the outer rotor via the inner rotor, so that the machining end of the passive shaft outputs a machining power. When the resistance is greater than the machining power, the machining resistance causes a jump and slip between the outer rotor and the inner rotor, and the rotation speed of the driving shaft is pinned and reduced, and the monitoring unit receives the information that the driving shaft speed is reduced. A control signal is issued to stop the operation of the drive shaft to prevent breakage during machining. The anti-break shaft processing device of claim 4, wherein the monitoring unit comprises a plurality of shutters spaced apart in the radial direction of the driving shaft, and one of the optical paths is disposed on the rotating path of the plurality of shutters. The counter monitors the rotation speed of the driving shaft by calculating the number of passes of the shutter by the optical counter.