CN112496879A

CN112496879A - Double-magnetic-disc magnetic passivation device and passivation method thereof

Info

Publication number: CN112496879A
Application number: CN202011482168.2A
Authority: CN
Inventors: 赵雪峰; 秦浩; 杨勇; 李辉; 游科; 殷小龙; 袁银
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-03-16

Abstract

The invention discloses a double-magnetic-disc magnetic passivation device and a passivation method thereof, wherein the double-magnetic-disc magnetic passivation device comprises a cross frame and a vertical frame, the cross frame is horizontally arranged, the vertical frame is vertical to the cross frame, two symmetrical magnetic disc motors are arranged on the cross frame, the magnetic disc motors are connected with magnetic discs through couplings, the vertical frame is connected with a first cutter motor through a motor base, the first cutter motor is connected with a first cutter chuck through a coupling, a first cutter is clamped below the first cutter chuck, the first cutter is positioned in a gap between the magnetic discs, a grinding liquid pump is arranged on the vertical frame, and the grinding liquid pump sprays grinding liquid to the first cutter through a hose. The device has simple and reliable structure. The magnetic disc is convenient to disassemble and assemble, and the grinding materials can be replaced at any time. The device has high efficiency, and can simultaneously realize the passivation processing of three cutters. The magnetic passivation machining efficiency of the double magnetic discs is extremely high, the time cost can be saved by one third, and the defects and burrs of the cutting edge of the cutter can be obviously removed. The grinding fluid is indirectly sprayed, so that the grinding fluid has a remarkable effect of improving the processing efficiency and obtains a good using effect.

Description

Double-magnetic-disc magnetic passivation device and passivation method thereof

Technical Field

The invention relates to a magnetic force passivation device, in particular to a double-magnetic-disc magnetic force passivation device and a passivation method thereof, and belongs to the technical field of cutter processing equipment.

Background

At present, microscopic gaps with different degrees exist in the cutting edge of a cutter sharpened by a common grinding wheel or a diamond grinding wheel, namely, a tiny tipping and a saw cut, or the cutting edge is microscopic and too sharp, namely, the cutting edge is too thin and sharp, and the firmness is insufficient. The tool passivation is the treatment of deburring, flattening and polishing, and is currently and uniformly named as tool passivation, edge reinforcement, edge honing and the like at home and abroad.

The blade passivation technology aims to overcome the defect of microscopic gaps of the blade of a cutter after the cutter is ground and formed, and the sharpness value of the blade is reduced to achieve the effect of smoothness and smoothness without losing sharpness, so that the service life of the cutter is prolonged, the cutting capability is improved, and the cutter is firm and durable and can improve the surface smoothness of a processed workpiece. The passivated cutter not only improves the cutting capability and the service life, but also improves the surface finish of parts processed by the cutter, and the cutter groove is smooth and flat, so that the chip removal capability is improved, the cutting force is reduced, and the high-speed cutting capability is improved.

The existing cutter edge passivation technology is mainly mechanical passivation in the market, namely, a cutter performs autorotation and turnover motion in a certain track in an abrasive formula under the condition of mechanical clamping to passivate the cutter, correspondingly different passivation effects can be realized due to different abrasive formulas, but the mode has the defects that the polishing effect of the cutter is reduced when the large grinding capacity of abrasive particles is large due to the fact that the material removal degree is consistent due to the fact that the cutter edge and the cutter body are ground, the roughness is high, the cutting edge is over-dull and not smooth, the passivation effect cannot be well controlled due to the fact that the passivation time is increased when the abrasive particles are small, the passivation effect cannot be well controlled due to the fact that dry magnetic powder passivation needs to be performed on a mechanical arm single piece, the passivation efficiency is low, the equipment cost is high, and the existing cutter edge magnetic force passivation.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the manufacturing method and the device of the magnetic field arrangement disc for the magnetic passivation of the cutting edge of the cutter have the advantages that the structure is simple, the practicability is realized, the equipment cost is low, the applicability is strong, the operation is simple, the optimal passivation circumferential gradient magnetic field can be realized according to the diameter range of a passivated cutter and the corresponding size, the distribution of the circumferential gradient magnetic field on the surface of the magnetic disc enables the magnetic powder of magnetic grinding fluid to move in a gradually-changed track in a fixed range, the defects of the prior art are overcome, and the existing problems are effectively solved.

The technical scheme of the invention is as follows: the utility model provides a two disk magnetic force passivating device, it includes crossbearer and perpendicular frame, the crossbearer level is arranged, erects on the perpendicular to crossbearer of frame, is equipped with two disk motors of symmetry on the crossbearer, and the disk motor passes through the coupling joint magnetic disc, erects the frame and passes through motor cabinet connection cutter motor one, and cutter motor one passes through coupling joint cutter chuck one, and cutter chuck one below is pressed from both sides there is cutter one, and cutter one is located the clearance between the magnetic disc, erects to put up and is equipped with the lapping liquid pump, and the lapping liquid pump passes through the hose and spouts lapping liquid to cutter one.

The two sides of the transverse frame are symmetrically connected with longitudinal frames, the longitudinal frames are perpendicular to the transverse frame and are on the same plane, the longitudinal frames are connected with a second cutter motor through a base, the second cutter motor is connected with a second cutter chuck through a coupling, the second cutter chuck clamps a second cutter, and the second cutter is located in a gap between the magnetic disks.

And the vertical frame is also provided with a timer, and the timer is electrically connected with the first cutter motor and the second cutter motor through a lead.

The magnetic disks are Ru-Fe-B magnets, the thickness of each magnetic disk is 80-120mm, and the distance between every two magnetic disks is 10-15 mm.

The first magnetic disk motor and the first cutter motor are variable frequency motors.

The second cutter motor is a variable frequency motor.

A passivation method of a double-magnetic-disc magnetic passivation device comprises the following steps: firstly, adjusting the position of a disk motor to enable the space between disks to reach the required space requirement; secondly, mounting a first cutter and a second cutter; thirdly, adjusting the positions of the first cutter motor and the second cutter motor on the vertical frame and the longitudinal frame to enable the first cutter and the second cutter to be positioned in a gap between the magnetic disks; fourthly, starting a timer and a grinding fluid pump to start passivation; and fifthly, after the passivation time is up, closing the timer and finishing passivation.

The invention has the beneficial effects that: compared with the prior art, the device has the advantages of simple and reliable structure by adopting the technical scheme of the invention. The magnetic disc is convenient to disassemble and assemble, and the grinding materials can be replaced at any time. The device has high economical efficiency and the total cost is not higher than 2 ten thousand. The device has higher efficiency, and can simultaneously realize the passivation processing of three cutters compared with the traditional magnetic passivation machine. Compared with a traditional vertical passivation machine, the double-magnetic-disc magnetic passivation machine has the advantages that the time cost can be saved by one third, and the defects and burrs of the cutting edge of the cutter can be obviously removed. The grinding fluid is indirectly sprayed, so that the grinding fluid has a remarkable effect of improving the processing efficiency and obtains a good using effect.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a third schematic structural view of the present invention;

FIG. 4 is a schematic diagram showing the distribution of the thickness of the Ru magnet to the axial magnetic induction of the cutter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

Example 1: as shown in fig. 1 to 4, the double-disk magnetic passivation device comprises a cross frame 14 and a vertical frame 2, wherein the cross frame 14 is horizontally arranged, the vertical frame 2 is perpendicular to the cross frame 14, two disk motors 10 are symmetrically arranged on the cross frame 14, the disk motors 10 are connected with disks 16 through couplings 15, the vertical frame 2 is connected with a first cutter motor 4 through a motor base 17, the first cutter motor 4 is connected with a first cutter clamp 12 through a coupling, a first cutter 13 is clamped below the first cutter clamp 12, the first cutter 13 is located in a gap between the disks 16, a grinding fluid pump 3 is arranged on the vertical frame 2, and the grinding fluid pump 3 sprays grinding fluid to the first cutter 13 through a hose 5.

Furthermore, longitudinal frames 8 are symmetrically connected to two sides of the transverse frame 14, the longitudinal frames 8 are perpendicular to the transverse frame 14 and are located on the same plane, the longitudinal frames 8 are connected with a second cutter motor 7 through a base 9, the second cutter motor 7 is connected with a second cutter chuck 6 through a coupling, a second cutter 11 is clamped on the second cutter chuck 6, and the second cutter 11 is located in a gap between the magnetic disks 16.

The cross frame 14 is provided with a guide rail which is provided with a brake device.

The cutter passes through three-jaw chuck anchor clamps and connects, and 1.2 ~ 10 mm's cutter can be connected to the three-jaw chuck, and the three-jaw chuck passes through the shaft coupling to be connected with the 15W motor, and the motor is connected with the guide rail through the frame, realizes the up-and-down motion. Frame to maintain stability and reliability, a 40 × 40mm aluminum alloy frame was selected in a 1000 × 1000 × 500mm arrangement.

Further, a timer 1 is further arranged on the vertical frame 2, and the timer 1 is electrically connected with a first cutter motor 4 and a second cutter motor 7 through conducting wires.

Further, the magnetic disks 16 are Ru-Fe-B magnets, the thickness of the magnetic disks 16 is 80-120mm, and the distance between the magnetic disks 16 is 10-15 mm.

Further, the disk motor 10 and the cutter motor I4 are variable frequency motors.

Further, the second cutter motor 7 is a variable frequency motor.

A passivation method of a double-magnetic-disc magnetic passivation device comprises the following steps: firstly, adjusting the position of a disk motor 10 to ensure that the space between disks 16 reaches the required space requirement; secondly, mounting a first cutter 13 and a second cutter 11; thirdly, adjusting the positions of the first cutter motor 4 and the second cutter motor 7 on the vertical frame 2 and the longitudinal frame 8, so that the first cutter 13 and the second cutter 11 are positioned in a gap between the magnetic disks 16; fourthly, starting the timer 1 and the grinding fluid pump 3 to start passivation; and fifthly, after the passivation time is up, closing the timer 1 and finishing passivation.

The overall design of the device is shown in fig. 1, the main part is two 35 x 120mm magnetic disks 16 (the permanent magnet is magnetized by adopting end face thickness), magnetic abrasive particles are driven by the action of magnetic force to passivate the cutting edge of a cutter, the two magnetic disks 16 are connected with a 250W magnetic disk motor 10 (direct connection 220V alternating current, speed regulation and digital display screen) through a coupler, the speed regulation motor can regulate the forward and reverse rotation and the rotating speed of the magnetic disks 16, and the model of the magnetic disks 16 is NdFe 35. The guide rail is provided with a brake device and a limiting device.

This device can carry out passivation processing to three cutters simultaneously, and the cutter passes through anchor clamps, the shaft coupling links to each other with the motor, and what the motor adopted is 15W's adjustable speed motor, and the cutter anchor clamps can connect 1.2 ~ 10mm all kinds of cutters, and the motor is connected with the guide rail through the motor frame, realizes up-and-down and side-to-side movement. Frame to maintain stability and reliability, a 40 × 40mm aluminum alloy frame was selected in a 1000 × 1000 × 500mm arrangement.

In the process of cutter passivation, because there is high-speed friction in cutter and magnetic abrasive, can produce great calorific capacity, in order to reduce the temperature, this device realizes cooling and lubrication to the processing region through adopting pump body connection lapping liquid.

The most key part of the device is the size and shape design of the magnetic disk, namely the Ru ferroboron magnetic disk 16, finite element analysis is carried out on the thickness of the magnetic disk 16 through Ansys, the magnetic induction intensity of the end face is obviously increased when the thickness of the magnetic disk 16 reaches 120mm, so that the thickness of the magnetic disk is designed to be 120mm, and the diameter of the magnetic disk is designed to be 35mm due to the fact that the shaft diameter of the speed regulating motor is 15mm and the maximum range of the coupler is 15-35 mm.

The most key part of the device is a magnetic disk, namely the size and the shape of the Ru Fe B magnet are designed, the original size of the magnetic disk in western factories is 300mm in diameter and 150mm in thickness, and the range of magnetic induction intensity (0-30 mm because the length of a cutting edge of a cutter is only 30mm) at a distance of 12mm is 350-620 mT. When the magnetic disc is 35 multiplied by 35mm (diameter and thickness), the magnetic induction intensity range at the position of 0-30mm is 210-570 mT, and the range under the size of 35 multiplied by 75 is 280-630 mT, so that the influence of the thickness of the magnetic disc on the magnetic induction intensity under the axis of the cutter (0-30 mm) is the largest, and the influence of the diameter of the magnetic disc on the magnetic induction intensity under the axis of the cutter (0-30 mm) is very little.

Considering that the shaft diameter of the speed regulating motor is 15mm, and the maximum range of the coupler is 15-35mm, the diameter of the magnetic disk is designed to be 35mm, the thickness of the magnetic disk is designed to be 75mm, and the magnetic induction intensity (280-630 mT) of the magnetic disk is also close to that (350-620 mT) of the original magnetic disk of western factory under 0-30 mm.

The device has simple and reliable structure. The magnetic disc is convenient to disassemble and assemble, and the grinding materials can be replaced at any time. The device has high economical efficiency and the total cost is not higher than 2 ten thousand. The device has higher efficiency, and can simultaneously realize the passivation processing of three cutters compared with the traditional magnetic passivation machine. Compared with a traditional vertical passivation machine, the double-magnetic-disc magnetic passivation machine has the advantages that the time cost can be saved by one third, and the defects and burrs of the cutting edge of the cutter can be obviously removed. The grinding fluid is indirectly sprayed, so that the grinding fluid has a remarkable effect of improving the processing efficiency and obtains a good using effect.

The present invention is not described in detail, but is known to those skilled in the art. Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. a dual magnetic disk magnetic passivation device, it comprises a horizontal frame (14) and a vertical frame (2), characterized in that: the horizontal frame (14) is arranged horizontally, and the vertical frame (2) is perpendicular to the horizontal frame (14). ), the horizontal frame (14) is provided with two symmetrical magnetic disk motors (10), the magnetic disk motor (10) is connected to the magnetic disk (16) through the coupling (15), and the vertical frame (2) is connected to the magnetic disk (16) through the motor base (17) Connect the tool motor one (4), the tool motor one (4) is connected to the tool chuck one (12) through the coupling, the tool chuck one (12) is clamped with a tool one (13), and the tool one (13) is located on the disk In the gap between (16), the vertical frame (2) is provided with a grinding liquid pump (3), and the grinding liquid pump (3) sprays grinding liquid to the first tool (13) through the hose (5).

2. The dual-disk magnetic passivation device according to claim 1, wherein the two sides of the horizontal frame (14) are symmetrically connected with a vertical frame (8), and the vertical frame (8) and the horizontal frame (14) are symmetrically connected with each other. They are perpendicular to each other and on the same plane, and the longitudinal frame (8) is connected with the second tool motor (7) through the base (9). The second head (6) is clamped with a second tool (11), and the second tool (11) is located in the gap between the magnetic disks (16).

3. The dual-disk magnetic passivation device according to claim 1, wherein: the vertical frame (2) is also provided with a timer (1), and the timer (1) is connected to a cutter motor one (4) through a wire. ) and the tool motor two (7) are electrically connected.

4. The dual-disk magnetic passivation device according to claim 1, wherein the magnetic disk (16) is a RuFeB magnet, and the thickness of the magnetic disk (16) is 80-120mm, and the magnetic disk (16) is 80-120mm thick. The spacing is 10-15mm.

5 . The dual-disk magnetic passivation device according to claim 1 , wherein the magnetic disk motor ( 10 ) and the first tool motor ( 4 ) are frequency conversion motors. 6 .

6 . The dual-disk magnetic passivation device according to claim 2 , wherein the second tool motor ( 7 ) is a variable frequency motor. 7 .

7. The passivation method of the dual magnetic disk magnetic passivation device according to any one of claims 1-6, wherein the method steps are: 1. Adjust the position of the magnetic disk motor (10) so that the magnetic disk (16 ) to meet the required spacing requirements; 2. Install tool 1 (13) and tool 2 (11); 3. Adjust tool motor 1 (4) and tool motor 2 (7) on the vertical frame (2) and Position on the vertical frame (8) so that the first tool (13) and the second tool (11) are located in the gap between the magnetic disks (16); 4. Start the timer (1) and the grinding fluid pump (3) to start passivation 5. When the passivation time expires, the timer (1) is turned off, and the passivation ends.