TWM574092U - Magnetic passivation machine for using in cutting tools - Google Patents

Abstract

A magnetic passivation machine includes a base, a motor, a magnetic unit, a grinding base, and a magnetic block, wherein the motor is disposed on the base, and the magnetic unit has a magnetic rotating wheel connected to the motor and a plurality of The magnet of the magnetic oscillating turntable is disposed on the magnetic conductive turntable and has a grinding space for accommodating the magnetic medium abrasive grains. The magnetic plucking block is disposed on the pedestal and located in the grinding space of the grinding seat. Thereby, after the cutting tool protrudes into the grinding space, the magnetic medium abrasive particles will impact the cutting tool as the magnetic unit rotates, so that the cutting tool achieves the effects of passivation, polishing, grinding and deburring, and the magnetic dial will be toggled. The magnetic medium abrasive particles keep the magnetic medium abrasive grains at a good level at any time to maintain the processing quality.

Description

Magnetic passivation machine for cutting tools

This creation is related to the magnetic passivation machine, especially a magnetic passivation machine that uses magnetic force to keep the magnetic medium abrasive grains in good flatness.

For cutting operations, the durability and fineness of cutting tools such as drill bits play a pivotal role. When the durability and fineness of the cutting tool is improved, it has significant economic benefits in terms of achieving high-speed cutting operations or reducing the frequency of cutting tools.

The main work of improving the durability and fineness of cutting tools comes from the removal of the burrs or passivation treatment of the center of the cutting tool. Since the roundness of the center static point is the main factor affecting the processing quality, once the center has a static point, The burrs are too sharp and are prone to offset during cutting and positioning.

In order to solve the above problems, the passivation machine currently used mainly utilizes the magnetic field generated by the magnetic disk to distribute the magnetic medium abrasive particles evenly in the grinding seat. After starting the magnetic medium, the magnetic medium abrasive particles can passivate the central static point of the cutting tool. , remove burrs, grind or polish. However, under long-term use, the magnetic medium abrasive particles will gradually accumulate in a specific position due to the size and shape of the cutting tool, so that the next grinding will cause the magnetic medium abrasive particles to only contact a specific part of the cutting tool. , which in turn affects the passivation quality.

The main purpose of this creation is to provide a magnetic passivation machine that uses magnetic force to maintain good flatness of the magnetic media abrasive particles.

In order to achieve the above object, the magnetic passivation machine of the present invention comprises a base, a motor, a magnetic unit, a grinding seat, and a magnetic block. The motor is disposed on the base and has an output shaft; the magnetic unit has a magnetic conductive turntable and a plurality of magnets, and the magnetic conductive turntable is fixed to the output shaft of the motor, so that the magnetic conductive turntable can be driven by the motor Rotating, the magnets are disposed on the magnetic conductive turntable to form a magnetic field together with the magnetic conductive turntable; the grinding seat is disposed on the top surface of the magnetic conductive turntable and can rotate together with the magnetic conductive turntable, and the grinding seat has a function And a grinding space for holding a plurality of magnetic media abrasive grains; the magnetic block is disposed on the base and located in the grinding space of the polishing seat for urging the magnetic media abrasive grains.

Thereby, the magnetic field generated by the magnetic unit passes through the polishing seat, so that the magnetic medium abrasive grains are uniformly distributed in the grinding space by magnetic field induction, and when the polishing seat rotates together with the magnetic unit, The magnetic medium abrasive grains can passivate, polish, grind and deburr the cutting tool which protrudes into the grinding space, and at the same time, the magnetic dial blocks the magnetic medium abrasive grains to make the magnetic particles The magnetic media abrasive particles maintain good flatness at all times to maintain passivation quality.

Preferably, the magnets are fan-shaped and arranged at an annular interval centered on the center of the magnetically permeable turntable. In addition, the adjacent two magnets are disposed opposite to each other in a magnetic pole manner, so that the magnetic field formed by the magnetic unit can enhance the guiding effect of the magnetic medium abrasive grains.

Preferably, the magnetic block may be a permanent magnet or an electromagnet, or may be composed of a magnetically conductive bracket and a plurality of magnetic plates, the magnetic plates being rectangular and arranged at equal intervals from each other. Adjacent magnetic plates are disposed opposite to each other in such a manner that the magnetic field formed by the magnetic blocks can enhance the dialing effect of the magnetic medium abrasive grains.

The applicant first explains here, in the entire specification, including the embodiments described below and the claims of the patent application, "upper", "lower", "top", "bottom", "front", "post" The terms related to directionality are based on the direction in the schema. In the following embodiments, the same reference numerals will be given to the same or similar elements or structural features thereof.

Referring to Figures 1 and 2, the magnetic passivation machine 10 of the present invention comprises a base 20, a motor 30, a magnetic unit 40, a grinding base 50, and a magnetic block 60.

The base 20 has a base 21 and a top cover 22 disposed above the base 21. The top cover 22 has a working hole 23 extending through the top and bottom sides, and the working hole 23 is for inserting a cutting tool 12 ( As shown in Figure 6).

Motor 30 is mounted to the base and has an output shaft 32 that extends into the top cover 22.

The magnetic unit 40 is covered by the top cover 22 and has a magnetically permeable turntable 42 and eight magnets 44. The magnetic conductive turntable 42 is made of a magnetic conductive material, and the magnetic conductive turntable 42 is fixed to the output shaft 32 of the motor 30, so that the magnetic conductive turntable 42 is driven to rotate by the motor 30; the magnets 44 are fan-shaped and embedded The arrangement is mounted on the magnetic conductive turntable 42 and arranged in a ring-shaped interval with the center of the magnetic conductive turntable 42 as a center, so that the magnets 44 rotate together with the magnetic conductive turntable 42 and, as shown in FIGS. 3 and 4, The magnetic poles of the adjacent two magnets 44 are disposed in the opposite manner above and above, so that the magnets 44 can be combined with the magnetic conductive turntable 42 to generate a magnetic field.

The polishing pad 50 is covered by the top cover 22 and disposed on the top surface of the magnetic conductive turntable 42, so that the polishing base 50 rotates together with the magnetic conductive turntable 42. The grinding base 50 has a grinding space 52 that communicates with the working hole 23. The grinding space 52 is used to hold a plurality of magnetic medium abrasive grains 54. The magnetic medium abrasive grains 54 have two sources, one of which is selected from the group consisting of stainless steel beads and stainless steel powder. One of the groups consisting of iron sand, iron powder, iron beads and their mixed materials, and then adding a hard abrasive material to obtain abrasive grains having high wear resistance characteristics after high-temperature sintering treatment, the following describes the manufacturing process: firstly, pure iron powder and The hard abrasive material (such as tantalum carbide, alumina or diamond) is mixed by the binder to form a block body, and the high temperature is heated at a high temperature of about 1000 ° C for a heating time, so that the pure iron powder is melted and combined with the hard abrasive material, and The binder is released, and then pulverized by a high pressure method to obtain abrasive grains having magnetic permeability. The abrasive grains have a pure iron component and are magnetically attracted by the magnet, and the abrasive grains include a hard abrasive material to improve wear resistance. On the other hand, the magnetic medium abrasive particles 54 can also be a small particle magnetically permeable particle, such as steel sand, iron sand, tungsten steel sand or stainless steel sand, to achieve the effect of magnetic conduction. Plus hard abrasive particles smaller than the diameter of the aforementioned magnetically permeable particles, such as tantalum carbide, alumina, diamond particles, zirconia, used to produce passivation, burrs, grinding and polishing, followed by liquid binder The magnetically permeable particles and the hard abrasive particles are combined into a magnetic medium abrasive particle 54.

In this embodiment, the magnetic block 60 has a magnetic conductive bracket 62 and five magnetic plates 64 having a rectangular shape. As shown in FIGS. 2 and 5, the magnetic conductive bracket 62 is made of a magnetic conductive material, and is guided. The magnetic bracket 62 is locked to the top cover 22 by a fixing member such as a screw. The magnetic plates 64 are fixed to the magnetic conductive bracket 62 at equal intervals and are located in the grinding space 52. In addition, two adjacent magnetic plates The magnetic poles of 64 are disposed in opposite left and right directions so that the magnetic plates 64 can be combined with the magnetically conductive bracket 62 to generate a magnetic field. However, in other embodiments, the magnetic block 60 can also be replaced with a permanent magnet or an electromagnet.

As can be seen from the above, as shown in Fig. 6, after the motor 30 starts to be started, the grinding base 50 rotates together with the magnetic unit 40, and the magnetic medium abrasive grains 54 at this time are guided by the magnetic field generated by the magnetic unit 40. The inside of the grinding space 52 is formed with elasticity (because the magnetic medium abrasive grain 54 is guided by the magnetic field, and moves to return to the original position after moving) and softness (because the magnetic medium abrasive grain 54 is hindered, the traveling direction is changed) The effect of the fluid steel brush, as used herein, is that the magnetic medium abrasive particles 54 are obstructed to change the direction of travel as fluid, and the "steel brush" refers to the cutting tool 12, so After the cutting tool 12 projects into the grinding space 52, the work of passivation, burr removal, grinding and polishing begins to occur.

At the same time, the magnetic field generated by the magnetic block 60 adsorbs the magnetic medium abrasive particles 54 accumulated on the inner wall of the polishing base 50, causing the magnetic medium abrasive particles 54 to return to the grinding space 52, and the rotation process of the polishing seat 50. The magnetic medium abrasive particles 54 located in the grinding space 52 are plucked by the magnetic block 60 at all times to keep the magnetic medium abrasive particles 54 flat, so that the cutting tool 12 can be provided with good grinding quality every time. .

10‧‧‧Magnetic passivation machine

12‧‧‧ cutting tools

20‧‧‧ Pedestal

21‧‧‧Base

22‧‧‧Top cover

23‧‧‧Working holes

30‧‧‧Motor

32‧‧‧ Output shaft

40‧‧‧Magnetic unit

42‧‧‧Magnetic turntable

44‧‧‧ magnet

50‧‧‧ grinding seat

52‧‧‧ grinding space

54‧‧‧Magnetic medium abrasive grains

60‧‧‧Magnetic block

62‧‧‧Magnetic bracket

64‧‧‧ magnetic board

Fig. 1 is a perspective view showing the appearance of the magnetic passivation machine of the present invention. Figure 2 is a cross-sectional view of the magnetic passivation machine of the present invention. Figure 3 is a top view of the magnetic disk provided by the magnetic passivation machine of the present invention. Figure 4 is a cross-sectional view taken along line 4-4 of Figure 3. Fig. 5 is a perspective view showing the appearance of a magnetic dial provided by the magnetic passivation machine of the present invention. Figure 6 is a cross-sectional view of the magnetic passivation machine of the present invention when used in conjunction with a cutting tool.

Claims (9)

A magnetic passivation machine comprising: a base; a motor disposed on the base and having an output shaft; a magnetic unit having a magnetic conductive turntable and a plurality of magnets, the magnetic conductive turntable fixed to the output of the motor a shaft, the magnet is disposed on the magnetic conductive turntable; a grinding base disposed on a top surface of the magnetic conductive turntable and having a grinding space for holding a plurality of magnetic medium abrasive grains; and a magnetic block disposed on the shaft The pedestal is located in the grinding space of the polishing seat for urging the magnetic medium abrasive grains. The magnetic passivation machine of claim 1, wherein the magnets are arranged at an annular interval centered on the center of the magnetically permeable turntable. The magnetic passivation machine of claim 2, wherein the magnetic poles of two adjacent magnets are opposite. The magnetic passivation machine of any one of claims 1 to 3, wherein each of the magnets has a fan shape. The magnetic passivation machine of claim 1, wherein the base has a base and a top cover disposed above the base, the top cover is disposed above the base and has a working hole communicating with the grinding space; the motor The magnetic unit and the grinding base are covered by the top cover; the magnetic block is disposed on the top cover. The magnetic passivation machine of claim 5, wherein the magnetic block has a magnetically conductive bracket disposed on the top cover and a plurality of magnetic plates disposed at equal intervals in the magnetically conductive bracket. The magnetic passivation machine of claim 6, wherein each of the magnetic plates has a rectangular shape. The magnetic passivation machine of any one of claims 5 to 7, wherein the magnetic poles of two adjacent magnetic plates are opposite. The magnetic passivation machine of claim 1 or 5, wherein the magnetic block is a permanent magnet or an electromagnet.